From 17d9ddc72fb8bba0d4f67868c9c612e472a594a9 Mon Sep 17 00:00:00 2001 From: "Pallipadi, Venkatesh" Date: Wed, 10 Feb 2010 15:23:44 -0800 Subject: rbtree: Add support for augmented rbtrees Add support for augmented rbtrees in core rbtree code. This will be used in subsequent patches, in x86 PAT code, which needs interval trees to efficiently keep track of PAT ranges. Signed-off-by: Venkatesh Pallipadi LKML-Reference: <20100210232343.GA11465@linux-os.sc.intel.com> Signed-off-by: Suresh Siddha Signed-off-by: H. Peter Anvin --- Documentation/rbtree.txt | 58 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) (limited to 'Documentation') diff --git a/Documentation/rbtree.txt b/Documentation/rbtree.txt index aae8355d316..221f38be98f 100644 --- a/Documentation/rbtree.txt +++ b/Documentation/rbtree.txt @@ -190,3 +190,61 @@ Example: for (node = rb_first(&mytree); node; node = rb_next(node)) printk("key=%s\n", rb_entry(node, struct mytype, node)->keystring); +Support for Augmented rbtrees +----------------------------- + +Augmented rbtree is an rbtree with "some" additional data stored in each node. +This data can be used to augment some new functionality to rbtree. +Augmented rbtree is an optional feature built on top of basic rbtree +infrastructure. rbtree user who wants this feature will have an augment +callback function in rb_root initialized. + +This callback function will be called from rbtree core routines whenever +a node has a change in one or both of its children. It is the responsibility +of the callback function to recalculate the additional data that is in the +rb node using new children information. Note that if this new additional +data affects the parent node's additional data, then callback function has +to handle it and do the recursive updates. + + +Interval tree is an example of augmented rb tree. Reference - +"Introduction to Algorithms" by Cormen, Leiserson, Rivest and Stein. +More details about interval trees: + +Classical rbtree has a single key and it cannot be directly used to store +interval ranges like [lo:hi] and do a quick lookup for any overlap with a new +lo:hi or to find whether there is an exact match for a new lo:hi. + +However, rbtree can be augmented to store such interval ranges in a structured +way making it possible to do efficient lookup and exact match. + +This "extra information" stored in each node is the maximum hi +(max_hi) value among all the nodes that are its descendents. This +information can be maintained at each node just be looking at the node +and its immediate children. And this will be used in O(log n) lookup +for lowest match (lowest start address among all possible matches) +with something like: + +find_lowest_match(lo, hi, node) +{ + lowest_match = NULL; + while (node) { + if (max_hi(node->left) > lo) { + // Lowest overlap if any must be on left side + node = node->left; + } else if (overlap(lo, hi, node)) { + lowest_match = node; + break; + } else if (lo > node->lo) { + // Lowest overlap if any must be on right side + node = node->right; + } else { + break; + } + } + return lowest_match; +} + +Finding exact match will be to first find lowest match and then to follow +successor nodes looking for exact match, until the start of a node is beyond +the hi value we are looking for. -- cgit v1.2.3-70-g09d2 From 69c86373c6ea1149aa559e6088362d58d8ec8835 Mon Sep 17 00:00:00 2001 From: "florian@mickler.org" Date: Wed, 24 Feb 2010 12:05:16 +0100 Subject: Document the rfkill sysfs ABI This moves sysfs ABI info from Documentation/rfkill.txt to the ABI subfolder and reformats it. This also schedules the deprecated sysfs parts to be removed in 2012 (claim file) and 2014 (state file). Signed-off-by: Florian Mickler Signed-off-by: John W. Linville --- Documentation/ABI/obsolete/sysfs-class-rfkill | 29 ++++++++++++++++++ Documentation/ABI/stable/sysfs-class-rfkill | 42 +++++++++++++++++++++++++ Documentation/feature-removal-schedule.txt | 18 +++++++++++ Documentation/rfkill.txt | 44 ++++++++------------------- 4 files changed, 102 insertions(+), 31 deletions(-) create mode 100644 Documentation/ABI/obsolete/sysfs-class-rfkill create mode 100644 Documentation/ABI/stable/sysfs-class-rfkill (limited to 'Documentation') diff --git a/Documentation/ABI/obsolete/sysfs-class-rfkill b/Documentation/ABI/obsolete/sysfs-class-rfkill new file mode 100644 index 00000000000..4201d5b0551 --- /dev/null +++ b/Documentation/ABI/obsolete/sysfs-class-rfkill @@ -0,0 +1,29 @@ +rfkill - radio frequency (RF) connector kill switch support + +For details to this subsystem look at Documentation/rfkill.txt. + +What: /sys/class/rfkill/rfkill[0-9]+/state +Date: 09-Jul-2007 +KernelVersion v2.6.22 +Contact: linux-wireless@vger.kernel.org +Description: Current state of the transmitter. + This file is deprecated and sheduled to be removed in 2014, + because its not possible to express the 'soft and hard block' + state of the rfkill driver. +Values: A numeric value. + 0: RFKILL_STATE_SOFT_BLOCKED + transmitter is turned off by software + 1: RFKILL_STATE_UNBLOCKED + transmitter is (potentially) active + 2: RFKILL_STATE_HARD_BLOCKED + transmitter is forced off by something outside of + the driver's control. + +What: /sys/class/rfkill/rfkill[0-9]+/claim +Date: 09-Jul-2007 +KernelVersion v2.6.22 +Contact: linux-wireless@vger.kernel.org +Description: This file is deprecated because there no longer is a way to + claim just control over a single rfkill instance. + This file is scheduled to be removed in 2012. +Values: 0: Kernel handles events diff --git a/Documentation/ABI/stable/sysfs-class-rfkill b/Documentation/ABI/stable/sysfs-class-rfkill new file mode 100644 index 00000000000..97d5064f4f8 --- /dev/null +++ b/Documentation/ABI/stable/sysfs-class-rfkill @@ -0,0 +1,42 @@ +rfkill - radio frequency (RF) connector kill switch support + +For details to this subsystem look at Documentation/rfkill.txt. + +For the deprecated /sys/class/rfkill/*/state and +/sys/class/rfkill/*/claim knobs of this interface look in +Documentation/ABI/obsolte/sysfs-class-rfkill. + +What: /sys/class/rfkill +Date: 09-Jul-2007 +KernelVersion: v2.6.22 +Contact: linux-wireless@vger.kernel.org, +Description: The rfkill class subsystem folder. + Each registered rfkill driver is represented by an rfkillX + subfolder (X being an integer > 0). + + +What: /sys/class/rfkill/rfkill[0-9]+/name +Date: 09-Jul-2007 +KernelVersion v2.6.22 +Contact: linux-wireless@vger.kernel.org +Description: Name assigned by driver to this key (interface or driver name). +Values: arbitrary string. + + +What: /sys/class/rfkill/rfkill[0-9]+/type +Date: 09-Jul-2007 +KernelVersion v2.6.22 +Contact: linux-wireless@vger.kernel.org +Description: Driver type string ("wlan", "bluetooth", etc). +Values: See include/linux/rfkill.h. + + +What: /sys/class/rfkill/rfkill[0-9]+/persistent +Date: 09-Jul-2007 +KernelVersion v2.6.22 +Contact: linux-wireless@vger.kernel.org +Description: Whether the soft blocked state is initialised from non-volatile + storage at startup. +Values: A numeric value. + 0: false + 1: true diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index a0a4fd43e62..a841e79dfac 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -520,6 +520,24 @@ Who: Hans de Goede ---------------------------- +What: sysfs-class-rfkill state file +When: Feb 2014 +Files: net/rfkill/core.c +Why: Documented as obsolete since Feb 2010. This file is limited to 3 + states while the rfkill drivers can have 4 states. +Who: anybody or Florian Mickler + +---------------------------- + +What: sysfs-class-rfkill claim file +When: Feb 2012 +Files: net/rfkill/core.c +Why: It is not possible to claim an rfkill driver since 2007. This is + Documented as obsolete since Feb 2010. +Who: anybody or Florian Mickler + +---------------------------- + What: capifs When: February 2011 Files: drivers/isdn/capi/capifs.* diff --git a/Documentation/rfkill.txt b/Documentation/rfkill.txt index b4860509c31..83668e5dd17 100644 --- a/Documentation/rfkill.txt +++ b/Documentation/rfkill.txt @@ -99,37 +99,15 @@ system. Also, it is possible to switch all rfkill drivers (or all drivers of a specified type) into a state which also updates the default state for hotplugged devices. -After an application opens /dev/rfkill, it can read the current state of -all devices, and afterwards can poll the descriptor for hotplug or state -change events. - -Applications must ignore operations (the "op" field) they do not handle, -this allows the API to be extended in the future. - -Additionally, each rfkill device is registered in sysfs and there has the -following attributes: - - name: Name assigned by driver to this key (interface or driver name). - type: Driver type string ("wlan", "bluetooth", etc). - persistent: Whether the soft blocked state is initialised from - non-volatile storage at startup. - state: Current state of the transmitter - 0: RFKILL_STATE_SOFT_BLOCKED - transmitter is turned off by software - 1: RFKILL_STATE_UNBLOCKED - transmitter is (potentially) active - 2: RFKILL_STATE_HARD_BLOCKED - transmitter is forced off by something outside of - the driver's control. - This file is deprecated because it can only properly show - three of the four possible states, soft-and-hard-blocked is - missing. - claim: 0: Kernel handles events - This file is deprecated because there no longer is a way to - claim just control over a single rfkill instance. - -rfkill devices also issue uevents (with an action of "change"), with the -following environment variables set: +After an application opens /dev/rfkill, it can read the current state of all +devices. Changes can be either obtained by either polling the descriptor for +hotplug or state change events or by listening for uevents emitted by the +rfkill core framework. + +Additionally, each rfkill device is registered in sysfs and emits uevents. + +rfkill devices issue uevents (with an action of "change"), with the following +environment variables set: RFKILL_NAME RFKILL_STATE @@ -137,3 +115,7 @@ RFKILL_TYPE The contents of these variables corresponds to the "name", "state" and "type" sysfs files explained above. + + +For further details consult Documentation/ABI/stable/dev-rfkill and +Documentation/ABI/stable/sysfs-class-rfkill. -- cgit v1.2.3-70-g09d2 From 6c26361e4be3cf0dad7083e38ca52001a987e3e6 Mon Sep 17 00:00:00 2001 From: "florian@mickler.org" Date: Fri, 26 Feb 2010 12:01:34 +0100 Subject: enhance sysfs rfkill interface This commit introduces two new sysfs knobs. /sys/class/rfkill/rfkill[0-9]+/blocked_hw: (ro) hardblock kill state /sys/class/rfkill/rfkill[0-9]+/blocked_sw: (rw) softblock kill state Signed-off-by: Florian Mickler Signed-off-by: John W. Linville --- Documentation/ABI/stable/sysfs-class-rfkill | 25 +++++++++++++ net/rfkill/core.c | 58 +++++++++++++++++++++++++++++ 2 files changed, 83 insertions(+) (limited to 'Documentation') diff --git a/Documentation/ABI/stable/sysfs-class-rfkill b/Documentation/ABI/stable/sysfs-class-rfkill index 97d5064f4f8..b91c3f37453 100644 --- a/Documentation/ABI/stable/sysfs-class-rfkill +++ b/Documentation/ABI/stable/sysfs-class-rfkill @@ -40,3 +40,28 @@ Description: Whether the soft blocked state is initialised from non-volatile Values: A numeric value. 0: false 1: true + + +What: /sys/class/rfkill/rfkill[0-9]+/blocked_hw +Date: 23-Feb-2010 +KernelVersion v2.6.34 +Contact: linux-wireless@vger.kernel.org +Description: Current hardblock state. This file is read only. +Values: A numeric value. + 0: inactive + The transmitter is (potentially) active. + 1: active + The transmitter is forced off by something outside of + the driver's control. + + +What: /sys/class/rfkill/rfkill[0-9]+/blocked_sw +Date: 23-Feb-2010 +KernelVersion v2.6.34 +Contact: linux-wireless@vger.kernel.org +Description: Current softblock state. This file is read and write. +Values: A numeric value. + 0: inactive + The transmitter is (potentially) active. + 1: active + The transmitter is turned off by software. diff --git a/net/rfkill/core.c b/net/rfkill/core.c index c218e07e5ca..5f33151d70a 100644 --- a/net/rfkill/core.c +++ b/net/rfkill/core.c @@ -628,6 +628,61 @@ static ssize_t rfkill_persistent_show(struct device *dev, return sprintf(buf, "%d\n", rfkill->persistent); } +static ssize_t rfkill_blocked_hw_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct rfkill *rfkill = to_rfkill(dev); + unsigned long flags; + u32 state; + + spin_lock_irqsave(&rfkill->lock, flags); + state = rfkill->state; + spin_unlock_irqrestore(&rfkill->lock, flags); + + return sprintf(buf, "%d\n", (state & RFKILL_BLOCK_HW) ? 1 : 0 ); +} + +static ssize_t rfkill_blocked_sw_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct rfkill *rfkill = to_rfkill(dev); + unsigned long flags; + u32 state; + + spin_lock_irqsave(&rfkill->lock, flags); + state = rfkill->state; + spin_unlock_irqrestore(&rfkill->lock, flags); + + return sprintf(buf, "%d\n", (state & RFKILL_BLOCK_SW) ? 1 : 0 ); +} + +static ssize_t rfkill_blocked_sw_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct rfkill *rfkill = to_rfkill(dev); + unsigned long state; + int err; + + if (!capable(CAP_NET_ADMIN)) + return -EPERM; + + err = strict_strtoul(buf, 0, &state); + if (err) + return err; + + if (state > 1 ) + return -EINVAL; + + mutex_lock(&rfkill_global_mutex); + rfkill_set_block(rfkill, state); + mutex_unlock(&rfkill_global_mutex); + + return err ?: count; +} + static u8 user_state_from_blocked(unsigned long state) { if (state & RFKILL_BLOCK_HW) @@ -700,6 +755,9 @@ static struct device_attribute rfkill_dev_attrs[] = { __ATTR(persistent, S_IRUGO, rfkill_persistent_show, NULL), __ATTR(state, S_IRUGO|S_IWUSR, rfkill_state_show, rfkill_state_store), __ATTR(claim, S_IRUGO|S_IWUSR, rfkill_claim_show, rfkill_claim_store), + __ATTR(sw, S_IRUGO|S_IWUSR, rfkill_blocked_sw_show, + rfkill_blocked_sw_store), + __ATTR(hw, S_IRUGO, rfkill_blocked_hw_show, NULL), __ATTR_NULL }; -- cgit v1.2.3-70-g09d2 From 25268498c9e07870323aead10751b7c6e99a3a78 Mon Sep 17 00:00:00 2001 From: John Stultz Date: Fri, 12 Mar 2010 14:56:00 -0800 Subject: time: Add xtime, wall_to_monotonic to feature-removal-schedule They aren't really features, but fair warning to out of tree driver folks who might be accessing these variables. Signed-off-by: John Stultz CC: Ingo Molnar LKML-Reference: <1268434560-2677-1-git-send-email-johnstul@us.ibm.com> Signed-off-by: Thomas Gleixner --- Documentation/feature-removal-schedule.txt | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'Documentation') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index a5cc0db63d7..198acdc05fd 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -582,3 +582,13 @@ Why: The paravirt mmu host support is slower than non-paravirt mmu, both Who: Avi Kivity ---------------------------- + +What: xtime, wall_to_monotonic +When: 2.6.36+ +Files: kernel/time/timekeeping.c include/linux/time.h +Why: Cleaning up timekeeping internal values. Please use + existing timekeeping accessor functions to access + the equivalent functionality. +Who: John Stultz + +---------------------------- -- cgit v1.2.3-70-g09d2 From 32e688b8c1afafa389223a4813b97e8c128a1636 Mon Sep 17 00:00:00 2001 From: Rob Landley Date: Mon, 15 Mar 2010 15:21:31 +0100 Subject: Documentation/filesystems/proc.txt typo fix. Typo fix for a filename in procfs documentation. Signed-off-by: Rob Landley Signed-off-by: Jiri Kosina --- Documentation/filesystems/proc.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index a4f30faa4f1..770700317c2 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -305,7 +305,7 @@ Table 1-4: Contents of the stat files (as of 2.6.30-rc7) cgtime guest time of the task children in jiffies .............................................................................. -The /proc/PID/map file containing the currently mapped memory regions and +The /proc/PID/maps file containing the currently mapped memory regions and their access permissions. The format is: -- cgit v1.2.3-70-g09d2 From 5cc718b9dad682329a60e73547c6e708faa5bbe4 Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Mon, 15 Mar 2010 13:00:54 -0400 Subject: kprobes: Hide CONFIG_OPTPROBES and set if arch supports optimized kprobes Hide CONFIG_OPTPROBES and set if the arch supports optimized kprobes (IOW, HAVE_OPTPROBES=y), since this option doesn't change the major behavior of kprobes, and workarounds for minor changes are documented. Signed-off-by: Masami Hiramatsu Cc: systemtap Cc: DLE Cc: Dieter Ries Cc: Ananth N Mavinakayanahalli Cc: OGAWA Hirofumi Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Paul Mackerras Cc: Arnaldo Carvalho de Melo Cc: Frederic Weisbecker LKML-Reference: <20100315170054.31593.3153.stgit@localhost6.localdomain6> Signed-off-by: Ingo Molnar --- Documentation/kprobes.txt | 10 ++-------- arch/Kconfig | 9 ++------- 2 files changed, 4 insertions(+), 15 deletions(-) (limited to 'Documentation') diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt index 2f9115c0ae6..61c291cddf1 100644 --- a/Documentation/kprobes.txt +++ b/Documentation/kprobes.txt @@ -165,8 +165,8 @@ the user entry_handler invocation is also skipped. 1.4 How Does Jump Optimization Work? -If you configured your kernel with CONFIG_OPTPROBES=y (currently -this option is supported on x86/x86-64, non-preemptive kernel) and +If your kernel is built with CONFIG_OPTPROBES=y (currently this flag +is automatically set 'y' on x86/x86-64, non-preemptive kernel) and the "debug.kprobes_optimization" kernel parameter is set to 1 (see sysctl(8)), Kprobes tries to reduce probe-hit overhead by using a jump instruction instead of a breakpoint instruction at each probepoint. @@ -271,8 +271,6 @@ tweak the kernel's execution path, you need to suppress optimization, using one of the following techniques: - Specify an empty function for the kprobe's post_handler or break_handler. or -- Config CONFIG_OPTPROBES=n. - or - Execute 'sysctl -w debug.kprobes_optimization=n' 2. Architectures Supported @@ -307,10 +305,6 @@ it useful to "Compile the kernel with debug info" (CONFIG_DEBUG_INFO), so you can use "objdump -d -l vmlinux" to see the source-to-object code mapping. -If you want to reduce probing overhead, set "Kprobes jump optimization -support" (CONFIG_OPTPROBES) to "y". You can find this option under the -"Kprobes" line. - 4. API Reference The Kprobes API includes a "register" function and an "unregister" diff --git a/arch/Kconfig b/arch/Kconfig index e5eb1337a53..f06010fb483 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -42,15 +42,10 @@ config KPROBES If in doubt, say "N". config OPTPROBES - bool "Kprobes jump optimization support (EXPERIMENTAL)" - default y - depends on KPROBES + def_bool y + depends on KPROBES && HAVE_OPTPROBES depends on !PREEMPT - depends on HAVE_OPTPROBES select KALLSYMS_ALL - help - This option will allow kprobes to optimize breakpoint to - a jump for reducing its overhead. config HAVE_EFFICIENT_UNALIGNED_ACCESS bool -- cgit v1.2.3-70-g09d2 From 88393161210493e317ae391696ee8ef463cb3c23 Mon Sep 17 00:00:00 2001 From: Thomas Weber Date: Tue, 16 Mar 2010 11:47:56 +0100 Subject: Fix typos in comments [Ss]ytem => [Ss]ystem udpate => update paramters => parameters orginal => original Signed-off-by: Thomas Weber Acked-by: Randy Dunlap Signed-off-by: Jiri Kosina --- Documentation/cgroups/cgroups.txt | 2 +- Documentation/kbuild/kconfig.txt | 2 +- Documentation/sysfs-rules.txt | 2 +- Documentation/trace/events.txt | 8 ++++---- drivers/acpi/osl.c | 4 ++-- drivers/ata/ata_piix.c | 2 +- drivers/firewire/ohci.c | 2 +- drivers/gpu/drm/drm_bufs.c | 2 +- drivers/infiniband/hw/ipath/ipath_iba6110.c | 2 +- drivers/infiniband/hw/ipath/ipath_iba6120.c | 4 ++-- drivers/infiniband/hw/ipath/ipath_iba7220.c | 2 +- drivers/isdn/hisax/hfc4s8s_l1.c | 2 +- drivers/macintosh/windfarm_pm81.c | 2 +- drivers/media/dvb/dvb-usb/friio-fe.c | 2 +- drivers/net/smsc911x.c | 4 ++-- drivers/pci/hotplug/cpqphp_core.c | 2 +- drivers/pci/pci.c | 2 +- drivers/ps3/ps3-sys-manager.c | 2 +- drivers/regulator/core.c | 2 +- drivers/s390/char/sclp_cpi_sys.c | 2 +- drivers/scsi/bfa/include/defs/bfa_defs_cee.h | 2 +- drivers/scsi/bfa/include/defs/bfa_defs_status.h | 4 ++-- drivers/spi/spi_mpc8xxx.c | 2 +- drivers/virtio/virtio_pci.c | 2 +- fs/jfs/jfs_dmap.c | 2 +- kernel/cgroup.c | 2 +- mm/page_alloc.c | 2 +- net/wimax/op-rfkill.c | 2 +- sound/pci/emu10k1/emu10k1_main.c | 2 +- 29 files changed, 36 insertions(+), 36 deletions(-) (limited to 'Documentation') diff --git a/Documentation/cgroups/cgroups.txt b/Documentation/cgroups/cgroups.txt index fd588ff0e29..5eb279a48fa 100644 --- a/Documentation/cgroups/cgroups.txt +++ b/Documentation/cgroups/cgroups.txt @@ -573,7 +573,7 @@ void cancel_attach(struct cgroup_subsys *ss, struct cgroup *cgrp, Called when a task attach operation has failed after can_attach() has succeeded. A subsystem whose can_attach() has some side-effects should provide this -function, so that the subsytem can implement a rollback. If not, not necessary. +function, so that the subsystem can implement a rollback. If not, not necessary. This will be called only about subsystems whose can_attach() operation have succeeded. diff --git a/Documentation/kbuild/kconfig.txt b/Documentation/kbuild/kconfig.txt index 49efae70397..b2cb16ebcb1 100644 --- a/Documentation/kbuild/kconfig.txt +++ b/Documentation/kbuild/kconfig.txt @@ -96,7 +96,7 @@ Environment variables for 'silentoldconfig' KCONFIG_NOSILENTUPDATE -------------------------------------------------- If this variable has a non-blank value, it prevents silent kernel -config udpates (requires explicit updates). +config updates (requires explicit updates). KCONFIG_AUTOCONFIG -------------------------------------------------- diff --git a/Documentation/sysfs-rules.txt b/Documentation/sysfs-rules.txt index 5d8bc2cd250..c1a1fd636bf 100644 --- a/Documentation/sysfs-rules.txt +++ b/Documentation/sysfs-rules.txt @@ -125,7 +125,7 @@ versions of the sysfs interface. - Block The converted block subsystem at /sys/class/block or /sys/subsystem/block will contain the links for disks and partitions - at the same level, never in a hierarchy. Assuming the block subsytem to + at the same level, never in a hierarchy. Assuming the block subsystem to contain only disks and not partition devices in the same flat list is a bug in the application. diff --git a/Documentation/trace/events.txt b/Documentation/trace/events.txt index 02ac6ed38b2..b22000dbc57 100644 --- a/Documentation/trace/events.txt +++ b/Documentation/trace/events.txt @@ -238,7 +238,7 @@ subsystem's filter file. For convenience, filters for every event in a subsystem can be set or cleared as a group by writing a filter expression into the filter file -at the root of the subsytem. Note however, that if a filter for any +at the root of the subsystem. Note however, that if a filter for any event within the subsystem lacks a field specified in the subsystem filter, or if the filter can't be applied for any other reason, the filter for that event will retain its previous setting. This can @@ -250,7 +250,7 @@ fields can be guaranteed to propagate successfully to all events. Here are a few subsystem filter examples that also illustrate the above points: -Clear the filters on all events in the sched subsytem: +Clear the filters on all events in the sched subsystem: # cd /sys/kernel/debug/tracing/events/sched # echo 0 > filter @@ -260,7 +260,7 @@ none none Set a filter using only common fields for all events in the sched -subsytem (all events end up with the same filter): +subsystem (all events end up with the same filter): # cd /sys/kernel/debug/tracing/events/sched # echo common_pid == 0 > filter @@ -270,7 +270,7 @@ common_pid == 0 common_pid == 0 Attempt to set a filter using a non-common field for all events in the -sched subsytem (all events but those that have a prev_pid field retain +sched subsystem (all events but those that have a prev_pid field retain their old filters): # cd /sys/kernel/debug/tracing/events/sched diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 8e6d8665f0a..f92531fbd50 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -1405,7 +1405,7 @@ acpi_os_invalidate_address( switch (space_id) { case ACPI_ADR_SPACE_SYSTEM_IO: case ACPI_ADR_SPACE_SYSTEM_MEMORY: - /* Only interference checks against SystemIO and SytemMemory + /* Only interference checks against SystemIO and SystemMemory are needed */ res.start = address; res.end = address + length - 1; @@ -1457,7 +1457,7 @@ acpi_os_validate_address ( switch (space_id) { case ACPI_ADR_SPACE_SYSTEM_IO: case ACPI_ADR_SPACE_SYSTEM_MEMORY: - /* Only interference checks against SystemIO and SytemMemory + /* Only interference checks against SystemIO and SystemMemory are needed */ res = kzalloc(sizeof(struct acpi_res_list), GFP_KERNEL); if (!res) diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c index c33806654e4..b1cb8af6af1 100644 --- a/drivers/ata/ata_piix.c +++ b/drivers/ata/ata_piix.c @@ -43,7 +43,7 @@ * driver the list of errata that are relevant is below, going back to * PIIX4. Older device documentation is now a bit tricky to find. * - * The chipsets all follow very much the same design. The orginal Triton + * The chipsets all follow very much the same design. The original Triton * series chipsets do _not_ support independant device timings, but this * is fixed in Triton II. With the odd mobile exception the chips then * change little except in gaining more modes until SATA arrives. This diff --git a/drivers/firewire/ohci.c b/drivers/firewire/ohci.c index 75dc6988cff..8e180a27be7 100644 --- a/drivers/firewire/ohci.c +++ b/drivers/firewire/ohci.c @@ -1342,7 +1342,7 @@ static void bus_reset_tasklet(unsigned long data) * was set up before this reset, the old one is now no longer * in use and we can free it. Update the config rom pointers * to point to the current config rom and clear the - * next_config_rom pointer so a new udpate can take place. + * next_config_rom pointer so a new update can take place. */ if (ohci->next_config_rom != NULL) { diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c index 8417cc4c43f..8475d58f2a3 100644 --- a/drivers/gpu/drm/drm_bufs.c +++ b/drivers/gpu/drm/drm_bufs.c @@ -960,7 +960,7 @@ int drm_addbufs_pci(struct drm_device * dev, struct drm_buf_desc * request) dma->buflist[i + dma->buf_count] = &entry->buflist[i]; } - /* No allocations failed, so now we can replace the orginal pagelist + /* No allocations failed, so now we can replace the original pagelist * with the new one. */ if (dma->page_count) { diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c index 37d12e5efa4..1d7aea132a0 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba6110.c +++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c @@ -1474,7 +1474,7 @@ static void ipath_ht_quiet_serdes(struct ipath_devdata *dd) /** * ipath_pe_put_tid - write a TID in chip * @dd: the infinipath device - * @tidptr: pointer to the expected TID (in chip) to udpate + * @tidptr: pointer to the expected TID (in chip) to update * @tidtype: RCVHQ_RCV_TYPE_EAGER (1) for eager, RCVHQ_RCV_TYPE_EXPECTED (0) for expected * @pa: physical address of in memory buffer; ipath_tidinvalid if freeing * diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c index fbf8c5379ea..4b4a30b0dab 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba6120.c +++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c @@ -1328,7 +1328,7 @@ bail: /** * ipath_pe_put_tid - write a TID in chip * @dd: the infinipath device - * @tidptr: pointer to the expected TID (in chip) to udpate + * @tidptr: pointer to the expected TID (in chip) to update * @tidtype: RCVHQ_RCV_TYPE_EAGER (1) for eager, RCVHQ_RCV_TYPE_EXPECTED (0) for expected * @pa: physical address of in memory buffer; ipath_tidinvalid if freeing * @@ -1394,7 +1394,7 @@ static void ipath_pe_put_tid(struct ipath_devdata *dd, u64 __iomem *tidptr, /** * ipath_pe_put_tid_2 - write a TID in chip, Revision 2 or higher * @dd: the infinipath device - * @tidptr: pointer to the expected TID (in chip) to udpate + * @tidptr: pointer to the expected TID (in chip) to update * @tidtype: RCVHQ_RCV_TYPE_EAGER (1) for eager, RCVHQ_RCV_TYPE_EXPECTED (0) for expected * @pa: physical address of in memory buffer; ipath_tidinvalid if freeing * diff --git a/drivers/infiniband/hw/ipath/ipath_iba7220.c b/drivers/infiniband/hw/ipath/ipath_iba7220.c index a805402dd4a..34b778ed97f 100644 --- a/drivers/infiniband/hw/ipath/ipath_iba7220.c +++ b/drivers/infiniband/hw/ipath/ipath_iba7220.c @@ -1738,7 +1738,7 @@ bail: /** * ipath_7220_put_tid - write a TID to the chip * @dd: the infinipath device - * @tidptr: pointer to the expected TID (in chip) to udpate + * @tidptr: pointer to the expected TID (in chip) to update * @tidtype: 0 for eager, 1 for expected * @pa: physical address of in memory buffer; ipath_tidinvalid if freeing * diff --git a/drivers/isdn/hisax/hfc4s8s_l1.c b/drivers/isdn/hisax/hfc4s8s_l1.c index ab98e135bcb..7ea0d07836d 100644 --- a/drivers/isdn/hisax/hfc4s8s_l1.c +++ b/drivers/isdn/hisax/hfc4s8s_l1.c @@ -309,7 +309,7 @@ wait_busy(hfc4s8s_hw * a) /******************************************************/ /* function to read critical counter registers that */ -/* may be udpated by the chip during read */ +/* may be updated by the chip during read */ /******************************************************/ static u_char Read_hfc8_stable(hfc4s8s_hw * hw, int reg) diff --git a/drivers/macintosh/windfarm_pm81.c b/drivers/macintosh/windfarm_pm81.c index 565d5b2adc9..129cda73788 100644 --- a/drivers/macintosh/windfarm_pm81.c +++ b/drivers/macintosh/windfarm_pm81.c @@ -188,7 +188,7 @@ struct wf_smu_sys_fans_state { }; /* - * Configs for SMU Sytem Fan control loop + * Configs for SMU System Fan control loop */ static struct wf_smu_sys_fans_param wf_smu_sys_all_params[] = { /* Model ID 2 */ diff --git a/drivers/media/dvb/dvb-usb/friio-fe.c b/drivers/media/dvb/dvb-usb/friio-fe.c index d14bd227b50..93c21ddd0b7 100644 --- a/drivers/media/dvb/dvb-usb/friio-fe.c +++ b/drivers/media/dvb/dvb-usb/friio-fe.c @@ -300,7 +300,7 @@ static int jdvbt90502_set_frontend(struct dvb_frontend *fe, struct dvb_frontend_parameters *p) { /** - * NOTE: ignore all the paramters except frequency. + * NOTE: ignore all the parameters except frequency. * others should be fixed to the proper value for ISDB-T, * but don't check here. */ diff --git a/drivers/net/smsc911x.c b/drivers/net/smsc911x.c index 4fd1d8b3878..eb175980a8e 100644 --- a/drivers/net/smsc911x.c +++ b/drivers/net/smsc911x.c @@ -737,7 +737,7 @@ static void smsc911x_phy_adjust_link(struct net_device *dev) SMSC_TRACE(HW, "configuring for carrier OK"); if ((pdata->gpio_orig_setting & GPIO_CFG_LED1_EN_) && (!pdata->using_extphy)) { - /* Restore orginal GPIO configuration */ + /* Restore original GPIO configuration */ pdata->gpio_setting = pdata->gpio_orig_setting; smsc911x_reg_write(pdata, GPIO_CFG, pdata->gpio_setting); @@ -751,7 +751,7 @@ static void smsc911x_phy_adjust_link(struct net_device *dev) if ((pdata->gpio_setting & GPIO_CFG_LED1_EN_) && (!pdata->using_extphy)) { /* Force 10/100 LED off, after saving - * orginal GPIO configuration */ + * original GPIO configuration */ pdata->gpio_orig_setting = pdata->gpio_setting; pdata->gpio_setting &= ~GPIO_CFG_LED1_EN_; diff --git a/drivers/pci/hotplug/cpqphp_core.c b/drivers/pci/hotplug/cpqphp_core.c index f184d1d2ecb..6644337d63d 100644 --- a/drivers/pci/hotplug/cpqphp_core.c +++ b/drivers/pci/hotplug/cpqphp_core.c @@ -848,7 +848,7 @@ static int cpqhpc_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_disable_device; } - /* Check for the proper subsytem ID's + /* Check for the proper subsystem ID's * Intel uses a different SSID programming model than Compaq. * For Intel, each SSID bit identifies a PHP capability. * Also Intel HPC's may have RID=0. diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index cb1dd5f4988..ddd55dc927f 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -1506,7 +1506,7 @@ int pci_prepare_to_sleep(struct pci_dev *dev) * pci_back_from_sleep - turn PCI device on during system-wide transition into working state * @dev: Device to handle. * - * Disable device's sytem wake-up capability and put it into D0. + * Disable device's system wake-up capability and put it into D0. */ int pci_back_from_sleep(struct pci_dev *dev) { diff --git a/drivers/ps3/ps3-sys-manager.c b/drivers/ps3/ps3-sys-manager.c index 3cbaf1811bd..d37c445f0ed 100644 --- a/drivers/ps3/ps3-sys-manager.c +++ b/drivers/ps3/ps3-sys-manager.c @@ -119,7 +119,7 @@ enum ps3_sys_manager_service_id { * enum ps3_sys_manager_attr - Notification attribute (bit position mask). * @PS3_SM_ATTR_POWER: Power button. * @PS3_SM_ATTR_RESET: Reset button, not available on retail console. - * @PS3_SM_ATTR_THERMAL: Sytem thermal alert. + * @PS3_SM_ATTR_THERMAL: System thermal alert. * @PS3_SM_ATTR_CONTROLLER: Remote controller event. * @PS3_SM_ATTR_ALL: Logical OR of all. * diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index c7bbe30010f..7461f5bb2bd 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -1538,7 +1538,7 @@ EXPORT_SYMBOL_GPL(regulator_count_voltages); * Context: can sleep * * Returns a voltage that can be passed to @regulator_set_voltage(), - * zero if this selector code can't be used on this sytem, or a + * zero if this selector code can't be used on this system, or a * negative errno. */ int regulator_list_voltage(struct regulator *regulator, unsigned selector) diff --git a/drivers/s390/char/sclp_cpi_sys.c b/drivers/s390/char/sclp_cpi_sys.c index 62c2647f37f..4a51e3f0968 100644 --- a/drivers/s390/char/sclp_cpi_sys.c +++ b/drivers/s390/char/sclp_cpi_sys.c @@ -102,7 +102,7 @@ static struct sclp_req *cpi_prepare_req(void) /* set system name */ set_data(evb->system_name, system_name); - /* set sytem level */ + /* set system level */ evb->system_level = system_level; /* set sysplex name */ diff --git a/drivers/scsi/bfa/include/defs/bfa_defs_cee.h b/drivers/scsi/bfa/include/defs/bfa_defs_cee.h index 520a22f52dd..6217eec8c60 100644 --- a/drivers/scsi/bfa/include/defs/bfa_defs_cee.h +++ b/drivers/scsi/bfa/include/defs/bfa_defs_cee.h @@ -54,7 +54,7 @@ struct bfa_cee_lldp_str_s { }; -/* LLDP paramters */ +/* LLDP parameters */ struct bfa_cee_lldp_cfg_s { struct bfa_cee_lldp_str_s chassis_id; struct bfa_cee_lldp_str_s port_id; diff --git a/drivers/scsi/bfa/include/defs/bfa_defs_status.h b/drivers/scsi/bfa/include/defs/bfa_defs_status.h index cdceaeb9f4b..03ce0331eb4 100644 --- a/drivers/scsi/bfa/include/defs/bfa_defs_status.h +++ b/drivers/scsi/bfa/include/defs/bfa_defs_status.h @@ -223,9 +223,9 @@ enum bfa_status { BFA_STATUS_IM_PVID_NON_ZERO = 140, /* Port VLAN ID (PVID) is Set to * Non-Zero Value */ BFA_STATUS_IM_INETCFG_LOCK_FAILED = 141, /* Acquiring Network - * Subsytem Lock Failed.Please + * Subsystem Lock Failed.Please * try after some time */ - BFA_STATUS_IM_GET_INETCFG_FAILED = 142, /* Acquiring Network Subsytem + BFA_STATUS_IM_GET_INETCFG_FAILED = 142, /* Acquiring Network Subsystem * handle Failed. Please try * after some time */ BFA_STATUS_IM_NOT_BOUND = 143, /* Brocade 10G Ethernet Service is not diff --git a/drivers/spi/spi_mpc8xxx.c b/drivers/spi/spi_mpc8xxx.c index 4f0cc9d457e..56efdfe1428 100644 --- a/drivers/spi/spi_mpc8xxx.c +++ b/drivers/spi/spi_mpc8xxx.c @@ -639,7 +639,7 @@ static int mpc8xxx_spi_setup(struct spi_device *spi) } mpc8xxx_spi = spi_master_get_devdata(spi->master); - hw_mode = cs->hw_mode; /* Save orginal settings */ + hw_mode = cs->hw_mode; /* Save original settings */ cs->hw_mode = mpc8xxx_spi_read_reg(&mpc8xxx_spi->base->mode); /* mask out bits we are going to set */ cs->hw_mode &= ~(SPMODE_CP_BEGIN_EDGECLK | SPMODE_CI_INACTIVEHIGH diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c index 625447f645d..7210c0d72e4 100644 --- a/drivers/virtio/virtio_pci.c +++ b/drivers/virtio/virtio_pci.c @@ -654,7 +654,7 @@ static int __devinit virtio_pci_probe(struct pci_dev *pci_dev, /* we use the subsystem vendor/device id as the virtio vendor/device * id. this allows us to use the same PCI vendor/device id for all * virtio devices and to identify the particular virtio driver by - * the subsytem ids */ + * the subsystem ids */ vp_dev->vdev.id.vendor = pci_dev->subsystem_vendor; vp_dev->vdev.id.device = pci_dev->subsystem_device; diff --git a/fs/jfs/jfs_dmap.c b/fs/jfs/jfs_dmap.c index d9b031cf69f..d13b93043b0 100644 --- a/fs/jfs/jfs_dmap.c +++ b/fs/jfs/jfs_dmap.c @@ -2437,7 +2437,7 @@ dbAdjCtl(struct bmap * bmp, s64 blkno, int newval, int alloc, int level) /* check if this is a control page update for an allocation. * if so, update the leaf to reflect the new leaf value using - * dbSplit(); otherwise (deallocation), use dbJoin() to udpate + * dbSplit(); otherwise (deallocation), use dbJoin() to update * the leaf with the new value. in addition to updating the * leaf, dbSplit() will also split the binary buddy system of * the leaves, if required, and bubble new values within the diff --git a/kernel/cgroup.c b/kernel/cgroup.c index ef909a32975..a3b0f24bddb 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -3610,7 +3610,7 @@ static void __init cgroup_init_subsys(struct cgroup_subsys *ss) * @ss: the subsystem to load * * This function should be called in a modular subsystem's initcall. If the - * subsytem is built as a module, it will be assigned a new subsys_id and set + * subsystem is built as a module, it will be assigned a new subsys_id and set * up for use. If the subsystem is built-in anyway, work is delegated to the * simpler cgroup_init_subsys. */ diff --git a/mm/page_alloc.c b/mm/page_alloc.c index d03c946d556..a6326c71b66 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -2579,7 +2579,7 @@ static int default_zonelist_order(void) struct zone *z; int average_size; /* - * ZONE_DMA and ZONE_DMA32 can be very small area in the sytem. + * ZONE_DMA and ZONE_DMA32 can be very small area in the system. * If they are really small and used heavily, the system can fall * into OOM very easily. * This function detect ZONE_DMA/DMA32 size and confgigures zone order. diff --git a/net/wimax/op-rfkill.c b/net/wimax/op-rfkill.c index e978c7136c9..2609e445fe7 100644 --- a/net/wimax/op-rfkill.c +++ b/net/wimax/op-rfkill.c @@ -43,7 +43,7 @@ * wimax_rfkill() Kernel calling wimax_rfkill() * __wimax_rf_toggle_radio() * - * wimax_rfkill_set_radio_block() RF-Kill subsytem calling + * wimax_rfkill_set_radio_block() RF-Kill subsystem calling * __wimax_rf_toggle_radio() * * __wimax_rf_toggle_radio() diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c index f18bd6207c5..66c7fb3ced3 100644 --- a/sound/pci/emu10k1/emu10k1_main.c +++ b/sound/pci/emu10k1/emu10k1_main.c @@ -1787,7 +1787,7 @@ int __devinit snd_emu10k1_create(struct snd_card *card, else if (subsystem) snd_printdd("Sound card name = %s, " "vendor = 0x%x, device = 0x%x, subsystem = 0x%x. " - "Forced to subsytem = 0x%x\n", c->name, + "Forced to subsystem = 0x%x\n", c->name, pci->vendor, pci->device, emu->serial, c->subsystem); else snd_printdd("Sound card name = %s, " -- cgit v1.2.3-70-g09d2 From 0cb47ea24d2f72ca91bbe60e1c831f57e03efa20 Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Tue, 16 Mar 2010 18:25:12 +0100 Subject: netfilter: xtables: schedule xt_NOTRACK for removal It is being superseded by xt_CT (-j CT --notrack). Signed-off-by: Jan Engelhardt --- Documentation/feature-removal-schedule.txt | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'Documentation') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index ed511af0f79..8843fef0fce 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -589,3 +589,11 @@ Why: Useful in 2003, implementation is a hack. Generally invoked by accident today. Seen as doing more harm than good. Who: Len Brown + +--------------------------- + +What: xt_NOTRACK +Files: net/netfilter/xt_NOTRACK.c +When: April 2011 +Why: Superseded by xt_CT +Who: Netfilter developer team -- cgit v1.2.3-70-g09d2 From 408ffaa4a11ddd6f730be520479fd5cd890c57d3 Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Sun, 28 Feb 2010 23:19:52 +0100 Subject: netfilter: update my email address Signed-off-by: Jan Engelhardt --- Documentation/feature-removal-schedule.txt | 2 +- net/bridge/netfilter/ebt_ip6.c | 2 +- net/netfilter/xt_TCPOPTSTRIP.c | 3 +-- net/netfilter/xt_connlimit.c | 1 - net/netfilter/xt_connmark.c | 2 +- net/netfilter/xt_hashlimit.c | 2 +- net/netfilter/xt_recent.c | 2 +- net/netfilter/xt_time.c | 3 +-- net/netfilter/xt_u32.c | 3 +-- 9 files changed, 8 insertions(+), 12 deletions(-) (limited to 'Documentation') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 8843fef0fce..fa327f673a3 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -247,7 +247,7 @@ What (Why): When: January 2009 or Linux 2.7.0, whichever comes first Why: Superseded by newer revisions or modules -Who: Jan Engelhardt +Who: Jan Engelhardt --------------------------- diff --git a/net/bridge/netfilter/ebt_ip6.c b/net/bridge/netfilter/ebt_ip6.c index bbf2534ef02..4cb60f1ae7a 100644 --- a/net/bridge/netfilter/ebt_ip6.c +++ b/net/bridge/netfilter/ebt_ip6.c @@ -4,7 +4,7 @@ * Authors: * Manohar Castelino * Kuo-Lang Tseng - * Jan Engelhardt + * Jan Engelhardt * * Summary: * This is just a modification of the IPv4 code written by diff --git a/net/netfilter/xt_TCPOPTSTRIP.c b/net/netfilter/xt_TCPOPTSTRIP.c index 9dd8c8ef63e..e8b57609ddc 100644 --- a/net/netfilter/xt_TCPOPTSTRIP.c +++ b/net/netfilter/xt_TCPOPTSTRIP.c @@ -3,7 +3,6 @@ * * Copyright (C) 2007 Sven Schnelle * Copyright © CC Computer Consultants GmbH, 2007 - * Contact: Jan Engelhardt * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -136,7 +135,7 @@ static void __exit tcpoptstrip_tg_exit(void) module_init(tcpoptstrip_tg_init); module_exit(tcpoptstrip_tg_exit); -MODULE_AUTHOR("Sven Schnelle , Jan Engelhardt "); +MODULE_AUTHOR("Sven Schnelle , Jan Engelhardt "); MODULE_DESCRIPTION("Xtables: TCP option stripping"); MODULE_LICENSE("GPL"); MODULE_ALIAS("ipt_TCPOPTSTRIP"); diff --git a/net/netfilter/xt_connlimit.c b/net/netfilter/xt_connlimit.c index 26997ce90e4..9e624af40f8 100644 --- a/net/netfilter/xt_connlimit.c +++ b/net/netfilter/xt_connlimit.c @@ -5,7 +5,6 @@ * Nov 2002: Martin Bene : * only ignore TIME_WAIT or gone connections * (C) CC Computer Consultants GmbH, 2007 - * Contact: * * based on ... * diff --git a/net/netfilter/xt_connmark.c b/net/netfilter/xt_connmark.c index d184515604b..97465a47234 100644 --- a/net/netfilter/xt_connmark.c +++ b/net/netfilter/xt_connmark.c @@ -4,7 +4,7 @@ * Copyright (C) 2002,2004 MARA Systems AB * by Henrik Nordstrom * Copyright © CC Computer Consultants GmbH, 2007 - 2008 - * Jan Engelhardt + * Jan Engelhardt * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by diff --git a/net/netfilter/xt_hashlimit.c b/net/netfilter/xt_hashlimit.c index 9e9c4896394..ba9601a767a 100644 --- a/net/netfilter/xt_hashlimit.c +++ b/net/netfilter/xt_hashlimit.c @@ -36,7 +36,7 @@ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Harald Welte "); -MODULE_AUTHOR("Jan Engelhardt "); +MODULE_AUTHOR("Jan Engelhardt "); MODULE_DESCRIPTION("Xtables: per hash-bucket rate-limit match"); MODULE_ALIAS("ipt_hashlimit"); MODULE_ALIAS("ip6t_hashlimit"); diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c index 7073dbb8100..1af74dd563d 100644 --- a/net/netfilter/xt_recent.c +++ b/net/netfilter/xt_recent.c @@ -34,7 +34,7 @@ #include MODULE_AUTHOR("Patrick McHardy "); -MODULE_AUTHOR("Jan Engelhardt "); +MODULE_AUTHOR("Jan Engelhardt "); MODULE_DESCRIPTION("Xtables: \"recently-seen\" host matching for IPv4"); MODULE_LICENSE("GPL"); MODULE_ALIAS("ipt_recent"); diff --git a/net/netfilter/xt_time.c b/net/netfilter/xt_time.c index 93acaa59d10..9a9c9a3b0a5 100644 --- a/net/netfilter/xt_time.c +++ b/net/netfilter/xt_time.c @@ -1,7 +1,6 @@ /* * xt_time * Copyright © CC Computer Consultants GmbH, 2007 - * Contact: * * based on ipt_time by Fabrice MARIE * This is a module which is used for time matching @@ -264,7 +263,7 @@ static void __exit time_mt_exit(void) module_init(time_mt_init); module_exit(time_mt_exit); -MODULE_AUTHOR("Jan Engelhardt "); +MODULE_AUTHOR("Jan Engelhardt "); MODULE_DESCRIPTION("Xtables: time-based matching"); MODULE_LICENSE("GPL"); MODULE_ALIAS("ipt_time"); diff --git a/net/netfilter/xt_u32.c b/net/netfilter/xt_u32.c index 24a52762450..d7c05f03a7e 100644 --- a/net/netfilter/xt_u32.c +++ b/net/netfilter/xt_u32.c @@ -3,7 +3,6 @@ * * Original author: Don Cohen * (C) CC Computer Consultants GmbH, 2007 - * Contact: */ #include @@ -117,7 +116,7 @@ static void __exit u32_mt_exit(void) module_init(u32_mt_init); module_exit(u32_mt_exit); -MODULE_AUTHOR("Jan Engelhardt "); +MODULE_AUTHOR("Jan Engelhardt "); MODULE_DESCRIPTION("Xtables: arbitrary byte matching"); MODULE_LICENSE("GPL"); MODULE_ALIAS("ipt_u32"); -- cgit v1.2.3-70-g09d2 From 5be4a4f589841ef06fd79b241de3d5353a6c5efa Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Mon, 1 Mar 2010 11:55:33 +0100 Subject: netfilter: xt_recent: remove old proc directory The compat option was introduced in October 2008. Signed-off-by: Jan Engelhardt --- Documentation/feature-removal-schedule.txt | 10 --- net/netfilter/Kconfig | 7 -- net/netfilter/xt_recent.c | 105 ----------------------------- 3 files changed, 122 deletions(-) (limited to 'Documentation') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index fa327f673a3..ea227e3f528 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -241,16 +241,6 @@ Who: Thomas Gleixner --------------------------- -What (Why): - - xt_recent: the old ipt_recent proc dir - (superseded by /proc/net/xt_recent) - -When: January 2009 or Linux 2.7.0, whichever comes first -Why: Superseded by newer revisions or modules -Who: Jan Engelhardt - ---------------------------- - What: GPIO autorequest on gpio_direction_{input,output}() in gpiolib When: February 2010 Why: All callers should use explicit gpio_request()/gpio_free(). diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig index 8550dfde780..6ac28ef9300 100644 --- a/net/netfilter/Kconfig +++ b/net/netfilter/Kconfig @@ -859,13 +859,6 @@ config NETFILTER_XT_MATCH_RECENT Short options are available by using 'iptables -m recent -h' Official Website: -config NETFILTER_XT_MATCH_RECENT_PROC_COMPAT - bool 'Enable obsolete /proc/net/ipt_recent' - depends on NETFILTER_XT_MATCH_RECENT && PROC_FS - ---help--- - This option enables the old /proc/net/ipt_recent interface, - which has been obsoleted by /proc/net/xt_recent. - config NETFILTER_XT_MATCH_SCTP tristate '"sctp" protocol match support (EXPERIMENTAL)' depends on EXPERIMENTAL diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c index bcabfbc1cd0..2ff8aae84a3 100644 --- a/net/netfilter/xt_recent.c +++ b/net/netfilter/xt_recent.c @@ -83,9 +83,6 @@ struct recent_net { struct list_head tables; #ifdef CONFIG_PROC_FS struct proc_dir_entry *xt_recent; -#ifdef CONFIG_NETFILTER_XT_MATCH_RECENT_PROC_COMPAT - struct proc_dir_entry *ipt_recent; -#endif #endif }; @@ -342,17 +339,6 @@ static bool recent_mt_check(const struct xt_mtchk_param *par) } pde->uid = ip_list_uid; pde->gid = ip_list_gid; -#ifdef CONFIG_NETFILTER_XT_MATCH_RECENT_PROC_COMPAT - pde = proc_create_data(t->name, ip_list_perms, recent_net->ipt_recent, - &recent_old_fops, t); - if (pde == NULL) { - remove_proc_entry(t->name, recent_net->xt_recent); - kfree(t); - goto out; - } - pde->uid = ip_list_uid; - pde->gid = ip_list_gid; -#endif #endif spin_lock_bh(&recent_lock); list_add_tail(&t->list, &recent_net->tables); @@ -376,9 +362,6 @@ static void recent_mt_destroy(const struct xt_mtdtor_param *par) list_del(&t->list); spin_unlock_bh(&recent_lock); #ifdef CONFIG_PROC_FS -#ifdef CONFIG_NETFILTER_XT_MATCH_RECENT_PROC_COMPAT - remove_proc_entry(t->name, recent_net->ipt_recent); -#endif remove_proc_entry(t->name, recent_net->xt_recent); #endif recent_table_flush(t); @@ -470,84 +453,6 @@ static int recent_seq_open(struct inode *inode, struct file *file) return 0; } -#ifdef CONFIG_NETFILTER_XT_MATCH_RECENT_PROC_COMPAT -static int recent_old_seq_open(struct inode *inode, struct file *filp) -{ - static bool warned_of_old; - - if (unlikely(!warned_of_old)) { - printk(KERN_INFO KBUILD_MODNAME ": Use of /proc/net/ipt_recent" - " is deprecated; use /proc/net/xt_recent.\n"); - warned_of_old = true; - } - return recent_seq_open(inode, filp); -} - -static ssize_t recent_old_proc_write(struct file *file, - const char __user *input, - size_t size, loff_t *loff) -{ - const struct proc_dir_entry *pde = PDE(file->f_path.dentry->d_inode); - struct recent_table *t = pde->data; - struct recent_entry *e; - char buf[sizeof("+255.255.255.255")], *c = buf; - union nf_inet_addr addr = {}; - int add; - - if (size > sizeof(buf)) - size = sizeof(buf); - if (copy_from_user(buf, input, size)) - return -EFAULT; - - c = skip_spaces(c); - - if (size - (c - buf) < 5) - return c - buf; - if (!strncmp(c, "clear", 5)) { - c += 5; - spin_lock_bh(&recent_lock); - recent_table_flush(t); - spin_unlock_bh(&recent_lock); - return c - buf; - } - - switch (*c) { - case '-': - add = 0; - c++; - break; - case '+': - c++; - default: - add = 1; - break; - } - addr.ip = in_aton(c); - - spin_lock_bh(&recent_lock); - e = recent_entry_lookup(t, &addr, NFPROTO_IPV4, 0); - if (e == NULL) { - if (add) - recent_entry_init(t, &addr, NFPROTO_IPV4, 0); - } else { - if (add) - recent_entry_update(t, e); - else - recent_entry_remove(t, e); - } - spin_unlock_bh(&recent_lock); - return size; -} - -static const struct file_operations recent_old_fops = { - .open = recent_old_seq_open, - .read = seq_read, - .write = recent_old_proc_write, - .release = seq_release_private, - .owner = THIS_MODULE, -}; -#endif - static ssize_t recent_mt_proc_write(struct file *file, const char __user *input, size_t size, loff_t *loff) @@ -636,21 +541,11 @@ static int __net_init recent_proc_net_init(struct net *net) recent_net->xt_recent = proc_mkdir("xt_recent", net->proc_net); if (!recent_net->xt_recent) return -ENOMEM; -#ifdef CONFIG_NETFILTER_XT_MATCH_RECENT_PROC_COMPAT - recent_net->ipt_recent = proc_mkdir("ipt_recent", net->proc_net); - if (!recent_net->ipt_recent) { - proc_net_remove(net, "xt_recent"); - return -ENOMEM; - } -#endif return 0; } static void __net_exit recent_proc_net_exit(struct net *net) { -#ifdef CONFIG_NETFILTER_XT_MATCH_RECENT_PROC_COMPAT - proc_net_remove(net, "ipt_recent"); -#endif proc_net_remove(net, "xt_recent"); } #else -- cgit v1.2.3-70-g09d2 From ab5097b11f6fcb587b65cd08bd7241661ade77db Mon Sep 17 00:00:00 2001 From: Greg Thelen Date: Thu, 18 Mar 2010 15:04:39 -0700 Subject: memcg: fix typo in memcg documentation Updated memory.txt to be more consistent: s/swapiness/swappiness/ Signed-off-by: Greg Thelen Acked-by: Balbir Singh Signed-off-by: Jiri Kosina --- Documentation/cgroups/memory.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt index f8bc802d70b..3a6aecd078b 100644 --- a/Documentation/cgroups/memory.txt +++ b/Documentation/cgroups/memory.txt @@ -340,7 +340,7 @@ Note: 5.3 swappiness Similar to /proc/sys/vm/swappiness, but affecting a hierarchy of groups only. - Following cgroups' swapiness can't be changed. + Following cgroups' swappiness can't be changed. - root cgroup (uses /proc/sys/vm/swappiness). - a cgroup which uses hierarchy and it has child cgroup. - a cgroup which uses hierarchy and not the root of hierarchy. -- cgit v1.2.3-70-g09d2 From 819bfecc4fc6b6e5a793f719a45b7146ce423b79 Mon Sep 17 00:00:00 2001 From: "florian@mickler.org" Date: Sat, 13 Mar 2010 13:31:05 +0100 Subject: rename new rfkill sysfs knobs This patch renames the (never officially released) sysfs-knobs "blocked_hw" and "blocked_sw" to "hard" and "soft", as the hardware vs software conotation is misleading. It also gets rid of not needed locks around u32-read-access. Signed-off-by: Florian Mickler Signed-off-by: John W. Linville --- Documentation/ABI/stable/sysfs-class-rfkill | 10 ++++----- net/rfkill/core.c | 35 +++++++---------------------- 2 files changed, 13 insertions(+), 32 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ABI/stable/sysfs-class-rfkill b/Documentation/ABI/stable/sysfs-class-rfkill index b91c3f37453..097f522c33b 100644 --- a/Documentation/ABI/stable/sysfs-class-rfkill +++ b/Documentation/ABI/stable/sysfs-class-rfkill @@ -4,7 +4,7 @@ For details to this subsystem look at Documentation/rfkill.txt. For the deprecated /sys/class/rfkill/*/state and /sys/class/rfkill/*/claim knobs of this interface look in -Documentation/ABI/obsolte/sysfs-class-rfkill. +Documentation/ABI/obsolete/sysfs-class-rfkill. What: /sys/class/rfkill Date: 09-Jul-2007 @@ -42,8 +42,8 @@ Values: A numeric value. 1: true -What: /sys/class/rfkill/rfkill[0-9]+/blocked_hw -Date: 23-Feb-2010 +What: /sys/class/rfkill/rfkill[0-9]+/hard +Date: 12-March-2010 KernelVersion v2.6.34 Contact: linux-wireless@vger.kernel.org Description: Current hardblock state. This file is read only. @@ -55,8 +55,8 @@ Values: A numeric value. the driver's control. -What: /sys/class/rfkill/rfkill[0-9]+/blocked_sw -Date: 23-Feb-2010 +What: /sys/class/rfkill/rfkill[0-9]+/soft +Date: 12-March-2010 KernelVersion v2.6.34 Contact: linux-wireless@vger.kernel.org Description: Current softblock state. This file is read and write. diff --git a/net/rfkill/core.c b/net/rfkill/core.c index 5f33151d70a..7ae58b5b5a0 100644 --- a/net/rfkill/core.c +++ b/net/rfkill/core.c @@ -628,37 +628,25 @@ static ssize_t rfkill_persistent_show(struct device *dev, return sprintf(buf, "%d\n", rfkill->persistent); } -static ssize_t rfkill_blocked_hw_show(struct device *dev, +static ssize_t rfkill_hard_show(struct device *dev, struct device_attribute *attr, char *buf) { struct rfkill *rfkill = to_rfkill(dev); - unsigned long flags; - u32 state; - spin_lock_irqsave(&rfkill->lock, flags); - state = rfkill->state; - spin_unlock_irqrestore(&rfkill->lock, flags); - - return sprintf(buf, "%d\n", (state & RFKILL_BLOCK_HW) ? 1 : 0 ); + return sprintf(buf, "%d\n", (rfkill->state & RFKILL_BLOCK_HW) ? 1 : 0 ); } -static ssize_t rfkill_blocked_sw_show(struct device *dev, +static ssize_t rfkill_soft_show(struct device *dev, struct device_attribute *attr, char *buf) { struct rfkill *rfkill = to_rfkill(dev); - unsigned long flags; - u32 state; - - spin_lock_irqsave(&rfkill->lock, flags); - state = rfkill->state; - spin_unlock_irqrestore(&rfkill->lock, flags); - return sprintf(buf, "%d\n", (state & RFKILL_BLOCK_SW) ? 1 : 0 ); + return sprintf(buf, "%d\n", (rfkill->state & RFKILL_BLOCK_SW) ? 1 : 0 ); } -static ssize_t rfkill_blocked_sw_store(struct device *dev, +static ssize_t rfkill_soft_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { @@ -698,14 +686,8 @@ static ssize_t rfkill_state_show(struct device *dev, char *buf) { struct rfkill *rfkill = to_rfkill(dev); - unsigned long flags; - u32 state; - - spin_lock_irqsave(&rfkill->lock, flags); - state = rfkill->state; - spin_unlock_irqrestore(&rfkill->lock, flags); - return sprintf(buf, "%d\n", user_state_from_blocked(state)); + return sprintf(buf, "%d\n", user_state_from_blocked(rfkill->state)); } static ssize_t rfkill_state_store(struct device *dev, @@ -755,9 +737,8 @@ static struct device_attribute rfkill_dev_attrs[] = { __ATTR(persistent, S_IRUGO, rfkill_persistent_show, NULL), __ATTR(state, S_IRUGO|S_IWUSR, rfkill_state_show, rfkill_state_store), __ATTR(claim, S_IRUGO|S_IWUSR, rfkill_claim_show, rfkill_claim_store), - __ATTR(sw, S_IRUGO|S_IWUSR, rfkill_blocked_sw_show, - rfkill_blocked_sw_store), - __ATTR(hw, S_IRUGO, rfkill_blocked_hw_show, NULL), + __ATTR(soft, S_IRUGO|S_IWUSR, rfkill_soft_show, rfkill_soft_store), + __ATTR(hard, S_IRUGO, rfkill_hard_show, NULL), __ATTR_NULL }; -- cgit v1.2.3-70-g09d2 From 4bd96a7a8185755b091233b16034c7436cbf57af Mon Sep 17 00:00:00 2001 From: Shane Wang Date: Wed, 10 Mar 2010 14:36:10 +0800 Subject: x86, tboot: Add support for S3 memory integrity protection This patch adds support for S3 memory integrity protection within an Intel(R) TXT launched kernel, for all kernel and userspace memory. All RAM used by the kernel and userspace, as indicated by memory ranges of type E820_RAM and E820_RESERVED_KERN in the e820 table, will be integrity protected. The MAINTAINERS file is also updated to reflect the maintainers of the TXT-related code. All MACing is done in tboot, based on a complexity analysis and tradeoff. v3: Compared with v2, this patch adds a check of array size in tboot.c, and a note to specify which c/s of tboot supports this kind of MACing in intel_txt.txt. Signed-off-by: Shane Wang LKML-Reference: <4B973DDA.6050902@intel.com> Signed-off-by: Joseph Cihula Acked-by: Pavel Machek Acked-by: Rafael J. Wysocki Signed-off-by: H. Peter Anvin --- Documentation/intel_txt.txt | 16 +++++++++------- MAINTAINERS | 11 +++++++++++ arch/x86/include/asm/e820.h | 7 ++++++- arch/x86/kernel/tboot.c | 20 +++++++++++--------- 4 files changed, 37 insertions(+), 17 deletions(-) (limited to 'Documentation') diff --git a/Documentation/intel_txt.txt b/Documentation/intel_txt.txt index f40a1f03001..87c8990dbbd 100644 --- a/Documentation/intel_txt.txt +++ b/Documentation/intel_txt.txt @@ -161,13 +161,15 @@ o In order to put a system into any of the sleep states after a TXT has been restored, it will restore the TPM PCRs and then transfer control back to the kernel's S3 resume vector. In order to preserve system integrity across S3, the kernel - provides tboot with a set of memory ranges (kernel - code/data/bss, S3 resume code, and AP trampoline) that tboot - will calculate a MAC (message authentication code) over and then - seal with the TPM. On resume and once the measured environment - has been re-established, tboot will re-calculate the MAC and - verify it against the sealed value. Tboot's policy determines - what happens if the verification fails. + provides tboot with a set of memory ranges (RAM and RESERVED_KERN + in the e820 table, but not any memory that BIOS might alter over + the S3 transition) that tboot will calculate a MAC (message + authentication code) over and then seal with the TPM. On resume + and once the measured environment has been re-established, tboot + will re-calculate the MAC and verify it against the sealed value. + Tboot's policy determines what happens if the verification fails. + Note that the c/s 194 of tboot which has the new MAC code supports + this. That's pretty much it for TXT support. diff --git a/MAINTAINERS b/MAINTAINERS index 47cc449d89d..d3072cb8805 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2940,6 +2940,17 @@ S: Odd Fixes F: Documentation/networking/README.ipw2200 F: drivers/net/wireless/ipw2x00/ipw2200.* +INTEL(R) TRUSTED EXECUTION TECHNOLOGY (TXT) +M: Joseph Cihula +M: Shane Wang +L: tboot-devel@lists.sourceforge.net +W: http://tboot.sourceforge.net +T: Mercurial http://www.bughost.org/repos.hg/tboot.hg +S: Supported +F: Documentation/intel_txt.txt +F: include/linux/tboot.h +F: arch/x86/kernel/tboot.c + INTEL WIRELESS WIMAX CONNECTION 2400 M: Inaky Perez-Gonzalez M: linux-wimax@intel.com diff --git a/arch/x86/include/asm/e820.h b/arch/x86/include/asm/e820.h index 0e22296790d..ec8a52d14ab 100644 --- a/arch/x86/include/asm/e820.h +++ b/arch/x86/include/asm/e820.h @@ -45,7 +45,12 @@ #define E820_NVS 4 #define E820_UNUSABLE 5 -/* reserved RAM used by kernel itself */ +/* + * reserved RAM used by kernel itself + * if CONFIG_INTEL_TXT is enabled, memory of this type will be + * included in the S3 integrity calculation and so should not include + * any memory that BIOS might alter over the S3 transition + */ #define E820_RESERVED_KERN 128 #ifndef __ASSEMBLY__ diff --git a/arch/x86/kernel/tboot.c b/arch/x86/kernel/tboot.c index 86c9f91b48a..cc2c60474fd 100644 --- a/arch/x86/kernel/tboot.c +++ b/arch/x86/kernel/tboot.c @@ -175,6 +175,9 @@ static void add_mac_region(phys_addr_t start, unsigned long size) struct tboot_mac_region *mr; phys_addr_t end = start + size; + if (tboot->num_mac_regions >= MAX_TB_MAC_REGIONS) + panic("tboot: Too many MAC regions\n"); + if (start && size) { mr = &tboot->mac_regions[tboot->num_mac_regions++]; mr->start = round_down(start, PAGE_SIZE); @@ -184,18 +187,17 @@ static void add_mac_region(phys_addr_t start, unsigned long size) static int tboot_setup_sleep(void) { + int i; + tboot->num_mac_regions = 0; - /* S3 resume code */ - add_mac_region(acpi_wakeup_address, WAKEUP_SIZE); + for (i = 0; i < e820.nr_map; i++) { + if ((e820.map[i].type != E820_RAM) + && (e820.map[i].type != E820_RESERVED_KERN)) + continue; -#ifdef CONFIG_X86_TRAMPOLINE - /* AP trampoline code */ - add_mac_region(virt_to_phys(trampoline_base), TRAMPOLINE_SIZE); -#endif - - /* kernel code + data + bss */ - add_mac_region(virt_to_phys(_text), _end - _text); + add_mac_region(e820.map[i].addr, e820.map[i].size); + } tboot->acpi_sinfo.kernel_s3_resume_vector = acpi_wakeup_address; -- cgit v1.2.3-70-g09d2 From 14bf62cde79423a02a590e02664ed29a36facec1 Mon Sep 17 00:00:00 2001 From: Stefan Achatz Date: Thu, 18 Mar 2010 16:19:43 +0100 Subject: HID: add driver for Roccat Kone gaming mouse This Patch adds support for Kone gaming mouse from Roccat. It provides access to profiles, settings, firmware, weight, actual settings etc. through sysfs attributes. Event handling of this mouse differs from standard hid behaviour in that tilt button press is reported in each move event which results in strange behaviour if not handled by the driver. This is a heavily reworked version of the previously introduced driver. The changes include most of the previously raised concerns, memory leak and other fixes, code cleanups, adoption of additional achieved knowlege about the hardware and is (IMHO) a much better version than before even when I exchanged reduced USB-IO with a bigger memory consumption. I refused to implement one mentioned point: Removing the 'just-because-we-can' attributes. Motivation: Reading the clipped in weight: I'm no gamer and can't determine the usefulness of this feature but if the manufacturer implements such a feature it might make sense to someone and I would unwillingly limit the functionality besides its such a small feature. Reading the actual profile and dpi settings: Here I can testify that one can get lost of the actual settings when switching back and forth. The manufacturers windows driver has the ability for on-screen-display of the values and there is a mouse in the market that has an lcd on the underside of it to show these values. So I think this feature makes sense not only for me and shouldn't be removed. Signed-off-by: Stefan Achatz Signed-off-by: Jiri Kosina --- .../ABI/testing/sysfs-driver-hid-roccat-kone | 111 +++ drivers/hid/Kconfig | 7 + drivers/hid/Makefile | 1 + drivers/hid/hid-core.c | 1 + drivers/hid/hid-ids.h | 3 + drivers/hid/hid-roccat-kone.c | 1006 ++++++++++++++++++++ drivers/hid/hid-roccat-kone.h | 214 +++++ 7 files changed, 1343 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-driver-hid-roccat-kone create mode 100644 drivers/hid/hid-roccat-kone.c create mode 100644 drivers/hid/hid-roccat-kone.h (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-kone b/Documentation/ABI/testing/sysfs-driver-hid-roccat-kone new file mode 100644 index 00000000000..88340a23ce9 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-kone @@ -0,0 +1,111 @@ +What: /sys/bus/usb/devices/-:./actual_dpi +Date: March 2010 +Contact: Stefan Achatz +Description: It is possible to switch the dpi setting of the mouse with the + press of a button. + When read, this file returns the raw number of the actual dpi + setting reported by the mouse. This number has to be further + processed to receive the real dpi value. + + VALUE DPI + 1 800 + 2 1200 + 3 1600 + 4 2000 + 5 2400 + 6 3200 + + This file is readonly. + +What: /sys/bus/usb/devices/-:./actual_profile +Date: March 2010 +Contact: Stefan Achatz +Description: When read, this file returns the number of the actual profile. + This file is readonly. + +What: /sys/bus/usb/devices/-:./firmware_version +Date: March 2010 +Contact: Stefan Achatz +Description: When read, this file returns the raw integer version number of the + firmware reported by the mouse. Using the integer value eases + further usage in other programs. To receive the real version + number the decimal point has to be shifted 2 positions to the + left. E.g. a returned value of 138 means 1.38 + This file is readonly. + +What: /sys/bus/usb/devices/-:./kone_driver_version +Date: March 2010 +Contact: Stefan Achatz +Description: When read, this file returns the driver version. + The format of the string is "v..". + This attribute is used by the userland tools to find the sysfs- + paths of installed kone-mice and determine the capabilites of + the driver. Versions of this driver for old kernels replace + usbhid instead of generic-usb. The way to scan for this file + has been chosen to provide a consistent way for all supported + kernel versions. + This file is readonly. + +What: /sys/bus/usb/devices/-:./profile[1-5] +Date: March 2010 +Contact: Stefan Achatz +Description: The mouse can store 5 profiles which can be switched by the + press of a button. A profile holds informations like button + mappings, sensitivity, the colors of the 5 leds and light + effects. + When read, these files return the respective profile. The + returned data is 975 bytes in size. + When written, this file lets one write the respective profile + data back to the mouse. The data has to be 975 bytes long. + The mouse will reject invalid data, whereas the profile number + stored in the profile doesn't need to fit the number of the + store. + +What: /sys/bus/usb/devices/-:./settings +Date: March 2010 +Contact: Stefan Achatz +Description: When read, this file returns the settings stored in the mouse. + The size of the data is 36 bytes and holds information like the + startup_profile, tcu state and calibration_data. + When written, this file lets write settings back to the mouse. + The data has to be 36 bytes long. The mouse will reject invalid + data. + +What: /sys/bus/usb/devices/-:./startup_profile +Date: March 2010 +Contact: Stefan Achatz +Description: The integer value of this attribute ranges from 1 to 5. + When read, this attribute returns the number of the profile + that's active when the mouse is powered on. + When written, this file sets the number of the startup profile + and the mouse activates this profile immediately. + +What: /sys/bus/usb/devices/-:./tcu +Date: March 2010 +Contact: Stefan Achatz +Description: The mouse has a "Tracking Control Unit" which lets the user + calibrate the laser power to fit the mousepad surface. + When read, this file returns the current state of the TCU, + where 0 means off and 1 means on. + Writing 0 in this file will switch the TCU off. + Writing 1 in this file will start the calibration which takes + around 6 seconds to complete and activates the TCU. + +What: /sys/bus/usb/devices/-:./weight +Date: March 2010 +Contact: Stefan Achatz +Description: The mouse can be equipped with one of four supplied weights + ranging from 5 to 20 grams which are recognized by the mouse + and its value can be read out. When read, this file returns the + raw value returned by the mouse which eases further processing + in other software. + The values map to the weights as follows: + + VALUE WEIGHT + 0 none + 1 5g + 2 10g + 3 15g + 4 20g + + This file is readonly. diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 71d4c070362..d819b0271b4 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -268,6 +268,13 @@ config HID_QUANTA ---help--- Support for Quanta Optical Touch dual-touch panels. +config HID_ROCCAT_KONE + tristate "Roccat Kone" if EMBEDDED + depends on USB_HID + default !EMBEDDED + ---help--- + Support for Roccat Kone mouse. + config HID_SAMSUNG tristate "Samsung" if EMBEDDED depends on USB_HID diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile index 0b2618f092c..08b83ccd9d1 100644 --- a/drivers/hid/Makefile +++ b/drivers/hid/Makefile @@ -44,6 +44,7 @@ obj-$(CONFIG_HID_ORTEK) += hid-ortek.o obj-$(CONFIG_HID_QUANTA) += hid-quanta.o obj-$(CONFIG_HID_PANTHERLORD) += hid-pl.o obj-$(CONFIG_HID_PETALYNX) += hid-petalynx.o +obj-$(CONFIG_HID_ROCCAT_KONE) += hid-roccat-kone.o obj-$(CONFIG_HID_SAMSUNG) += hid-samsung.o obj-$(CONFIG_HID_SMARTJOYPLUS) += hid-sjoy.o obj-$(CONFIG_HID_SONY) += hid-sony.o diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 2e2aa759d23..5c5a821cd4c 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1346,6 +1346,7 @@ static const struct hid_device_id hid_blacklist[] = { { HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) }, { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) }, { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) }, + { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) }, { HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) }, { HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) }, diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 797e0647035..014acfcde56 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -399,6 +399,9 @@ #define USB_VENDOR_ID_PRODIGE 0x05af #define USB_DEVICE_ID_PRODIGE_CORDLESS 0x3062 +#define USB_VENDOR_ID_ROCCAT 0x1e7d +#define USB_DEVICE_ID_ROCCAT_KONE 0x2ced + #define USB_VENDOR_ID_SAITEK 0x06a3 #define USB_DEVICE_ID_SAITEK_RUMBLEPAD 0xff17 diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c new file mode 100644 index 00000000000..2b1412e4ff6 --- /dev/null +++ b/drivers/hid/hid-roccat-kone.c @@ -0,0 +1,1006 @@ +/* + * Roccat Kone driver for Linux + * + * Copyright (c) 2010 Stefan Achatz + */ + +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +/* + * Roccat Kone is a gamer mouse which consists of a mouse part and a keyboard + * part. The keyboard part enables the mouse to execute stored macros with mixed + * key- and button-events. + * + * TODO implement on-the-fly polling-rate change + * The windows driver has the ability to change the polling rate of the + * device on the press of a mousebutton. + * Is it possible to remove and reinstall the urb in raw-event- or any + * other handler, or to defer this action to be executed somewhere else? + * + * TODO implement notification mechanism for overlong macro execution + * If user wants to execute an overlong macro only the names of macroset + * and macro are given. Should userland tap hidraw or is there an + * additional streaming mechanism? + * + * TODO is it possible to overwrite group for sysfs attributes via udev? + */ + +#include +#include +#include +#include +#include +#include "hid-ids.h" +#include "hid-roccat-kone.h" + +static void kone_set_settings_checksum(struct kone_settings *settings) +{ + uint16_t checksum = 0; + unsigned char *address = (unsigned char *)settings; + int i; + + for (i = 0; i < sizeof(struct kone_settings) - 2; ++i, ++address) + checksum += *address; + settings->checksum = cpu_to_le16(checksum); +} + +/* + * Checks success after writing data to mouse + * On success returns 0 + * On failure returns errno + */ +static int kone_check_write(struct usb_device *usb_dev) +{ + int len; + unsigned char *data; + + data = kmalloc(1, GFP_KERNEL); + if (!data) + return -ENOMEM; + + do { + /* + * Mouse needs 50 msecs until it says ok, but there are + * 30 more msecs needed for next write to work. + */ + msleep(80); + + len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), + USB_REQ_CLEAR_FEATURE, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | + USB_DIR_IN, + kone_command_confirm_write, 0, data, 1, + USB_CTRL_SET_TIMEOUT); + + if (len != 1) { + kfree(data); + return -EIO; + } + + /* + * value of 3 seems to mean something like + * "not finished yet, but it looks good" + * So check again after a moment. + */ + } while (*data == 3); + + if (*data == 1) { /* everything alright */ + kfree(data); + return 0; + } else { /* unknown answer */ + dev_err(&usb_dev->dev, "got retval %d when checking write\n", + *data); + kfree(data); + return -EIO; + } +} + +/* + * Reads settings from mouse and stores it in @buf + * @buf has to be alloced with GFP_KERNEL + * On success returns 0 + * On failure returns errno + */ +static int kone_get_settings(struct usb_device *usb_dev, + struct kone_settings *buf) +{ + int len; + + len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), + USB_REQ_CLEAR_FEATURE, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + kone_command_settings, 0, buf, + sizeof(struct kone_settings), USB_CTRL_SET_TIMEOUT); + + if (len != sizeof(struct kone_settings)) + return -EIO; + + return 0; +} + +/* + * Writes settings from @buf to mouse + * On success returns 0 + * On failure returns errno + */ +static int kone_set_settings(struct usb_device *usb_dev, + struct kone_settings const *settings) +{ + int len; + + len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_CONFIGURATION, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, + kone_command_settings, 0, (char *)settings, + sizeof(struct kone_settings), + USB_CTRL_SET_TIMEOUT); + + if (len != sizeof(struct kone_settings)) + return -EIO; + + if (kone_check_write(usb_dev)) + return -EIO; + + return 0; +} + +/* + * Reads profile data from mouse and stores it in @buf + * @number: profile number to read + * On success returns 0 + * On failure returns errno + */ +static int kone_get_profile(struct usb_device *usb_dev, + struct kone_profile *buf, int number) +{ + int len; + + if (number < 1 || number > 5) + return -EINVAL; + + len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), + USB_REQ_CLEAR_FEATURE, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + kone_command_profile, number, buf, + sizeof(struct kone_profile), USB_CTRL_SET_TIMEOUT); + + if (len != sizeof(struct kone_profile)) + return -EIO; + + return 0; +} + +/* + * Writes profile data to mouse. + * @number: profile number to write + * On success returns 0 + * On failure returns errno + */ +static int kone_set_profile(struct usb_device *usb_dev, + struct kone_profile const *profile, int number) +{ + int len; + + if (number < 1 || number > 5) + return -EINVAL; + + len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_CONFIGURATION, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, + kone_command_profile, number, (char *)profile, + sizeof(struct kone_profile), + USB_CTRL_SET_TIMEOUT); + + if (len != sizeof(struct kone_profile)) + return len; + + if (kone_check_write(usb_dev)) + return -EIO; + + return 0; +} + +/* + * Reads value of "fast-clip-weight" and stores it in @result + * On success returns 0 + * On failure returns errno + */ +static int kone_get_weight(struct usb_device *usb_dev, int *result) +{ + int len; + uint8_t *data; + + data = kmalloc(1, GFP_KERNEL); + if (!data) + return -ENOMEM; + + len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), + USB_REQ_CLEAR_FEATURE, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + kone_command_weight, 0, data, 1, USB_CTRL_SET_TIMEOUT); + + if (len != 1) { + kfree(data); + return -EIO; + } + *result = (int)*data; + kfree(data); + return 0; +} + +/* + * Reads firmware_version of mouse and stores it in @result + * On success returns 0 + * On failure returns errno + */ +static int kone_get_firmware_version(struct usb_device *usb_dev, int *result) +{ + int len; + unsigned char *data; + + data = kmalloc(2, GFP_KERNEL); + if (!data) + return -ENOMEM; + + len = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0), + USB_REQ_CLEAR_FEATURE, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_IN, + kone_command_firmware_version, 0, data, 2, + USB_CTRL_SET_TIMEOUT); + + if (len != 2) { + kfree(data); + return -EIO; + } + *result = le16_to_cpu(*data); + kfree(data); + return 0; +} + +static ssize_t kone_sysfs_read_settings(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + struct device *dev = container_of(kobj, struct device, kobj); + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + + if (off >= sizeof(struct kone_settings)) + return 0; + + if (off + count > sizeof(struct kone_settings)) + count = sizeof(struct kone_settings) - off; + + mutex_lock(&kone->kone_lock); + memcpy(buf, &kone->settings + off, count); + mutex_unlock(&kone->kone_lock); + + return count; +} + +/* + * Writing settings automatically activates startup_profile. + * This function keeps values in kone_device up to date and assumes that in + * case of error the old data is still valid + */ +static ssize_t kone_sysfs_write_settings(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + struct device *dev = container_of(kobj, struct device, kobj); + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); + int retval = 0, difference; + + /* I need to get my data in one piece */ + if (off != 0 || count != sizeof(struct kone_settings)) + return -EINVAL; + + mutex_lock(&kone->kone_lock); + difference = memcmp(buf, &kone->settings, sizeof(struct kone_settings)); + if (difference) { + retval = kone_set_settings(usb_dev, + (struct kone_settings const *)buf); + if (!retval) + memcpy(&kone->settings, buf, + sizeof(struct kone_settings)); + } + mutex_unlock(&kone->kone_lock); + + if (retval) + return retval; + + /* + * If we get here, treat settings as okay and update actual values + * according to startup_profile + */ + kone->actual_profile = kone->settings.startup_profile; + kone->actual_dpi = kone->profiles[kone->actual_profile - 1].startup_dpi; + + return sizeof(struct kone_settings); +} + +static ssize_t kone_sysfs_read_profilex(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count, int number) { + struct device *dev = container_of(kobj, struct device, kobj); + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + + if (off >= sizeof(struct kone_profile)) + return 0; + + if (off + count > sizeof(struct kone_profile)) + count = sizeof(struct kone_profile) - off; + + mutex_lock(&kone->kone_lock); + memcpy(buf, &kone->profiles[number - 1], sizeof(struct kone_profile)); + mutex_unlock(&kone->kone_lock); + + return count; +} + +static ssize_t kone_sysfs_read_profile1(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_read_profilex(kobj, attr, buf, off, count, 1); +} + +static ssize_t kone_sysfs_read_profile2(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_read_profilex(kobj, attr, buf, off, count, 2); +} + +static ssize_t kone_sysfs_read_profile3(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_read_profilex(kobj, attr, buf, off, count, 3); +} + +static ssize_t kone_sysfs_read_profile4(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_read_profilex(kobj, attr, buf, off, count, 4); +} + +static ssize_t kone_sysfs_read_profile5(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_read_profilex(kobj, attr, buf, off, count, 5); +} + +/* Writes data only if different to stored data */ +static ssize_t kone_sysfs_write_profilex(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count, int number) { + struct device *dev = container_of(kobj, struct device, kobj); + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); + struct kone_profile *profile; + int retval = 0, difference; + + /* I need to get my data in one piece */ + if (off != 0 || count != sizeof(struct kone_profile)) + return -EINVAL; + + profile = &kone->profiles[number - 1]; + + mutex_lock(&kone->kone_lock); + difference = memcmp(buf, profile, sizeof(struct kone_profile)); + if (difference) { + retval = kone_set_profile(usb_dev, + (struct kone_profile const *)buf, number); + if (!retval) + memcpy(profile, buf, sizeof(struct kone_profile)); + } + mutex_unlock(&kone->kone_lock); + + if (retval) + return retval; + + return sizeof(struct kone_profile); +} + +static ssize_t kone_sysfs_write_profile1(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_write_profilex(kobj, attr, buf, off, count, 1); +} + +static ssize_t kone_sysfs_write_profile2(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_write_profilex(kobj, attr, buf, off, count, 2); +} + +static ssize_t kone_sysfs_write_profile3(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_write_profilex(kobj, attr, buf, off, count, 3); +} + +static ssize_t kone_sysfs_write_profile4(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_write_profilex(kobj, attr, buf, off, count, 4); +} + +static ssize_t kone_sysfs_write_profile5(struct kobject *kobj, + struct bin_attribute *attr, char *buf, + loff_t off, size_t count) { + return kone_sysfs_write_profilex(kobj, attr, buf, off, count, 5); +} + +static ssize_t kone_sysfs_show_actual_profile(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + return snprintf(buf, PAGE_SIZE, "%d\n", kone->actual_profile); +} + +static ssize_t kone_sysfs_show_actual_dpi(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + return snprintf(buf, PAGE_SIZE, "%d\n", kone->actual_dpi); +} + +/* weight is read each time, since we don't get informed when it's changed */ +static ssize_t kone_sysfs_show_weight(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); + int weight = 0; + int retval; + + mutex_lock(&kone->kone_lock); + retval = kone_get_weight(usb_dev, &weight); + mutex_unlock(&kone->kone_lock); + + if (retval) + return retval; + return snprintf(buf, PAGE_SIZE, "%d\n", weight); +} + +static ssize_t kone_sysfs_show_firmware_version(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + return snprintf(buf, PAGE_SIZE, "%d\n", kone->firmware_version); +} + +static ssize_t kone_sysfs_show_tcu(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + return snprintf(buf, PAGE_SIZE, "%d\n", kone->settings.tcu); +} + +static int kone_tcu_command(struct usb_device *usb_dev, int number) +{ + int len; + char *value; + + value = kmalloc(1, GFP_KERNEL); + if (!value) + return -ENOMEM; + + *value = number; + + len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0), + USB_REQ_SET_CONFIGURATION, + USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT, + kone_command_calibrate, 0, value, 1, + USB_CTRL_SET_TIMEOUT); + + kfree(value); + return ((len != 1) ? -EIO : 0); +} + +/* + * Calibrating the tcu is the only action that changes settings data inside the + * mouse, so this data needs to be reread + */ +static ssize_t kone_sysfs_set_tcu(struct device *dev, + struct device_attribute *attr, char const *buf, size_t size) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); + int retval; + unsigned long state; + + retval = strict_strtoul(buf, 10, &state); + if (retval) + return retval; + + if (state != 0 && state != 1) + return -EINVAL; + + mutex_lock(&kone->kone_lock); + + if (state == 1) { /* state activate */ + retval = kone_tcu_command(usb_dev, 1); + if (retval) + goto exit_unlock; + retval = kone_tcu_command(usb_dev, 2); + if (retval) + goto exit_unlock; + ssleep(5); /* tcu needs this time for calibration */ + retval = kone_tcu_command(usb_dev, 3); + if (retval) + goto exit_unlock; + retval = kone_tcu_command(usb_dev, 0); + if (retval) + goto exit_unlock; + retval = kone_tcu_command(usb_dev, 4); + if (retval) + goto exit_unlock; + /* + * Kone needs this time to settle things. + * Reading settings too early will result in invalid data. + * Roccat's driver waits 1 sec, maybe this time could be + * shortened. + */ + ssleep(1); + } + + /* calibration changes values in settings, so reread */ + retval = kone_get_settings(usb_dev, &kone->settings); + if (retval) + goto exit_no_settings; + + /* only write settings back if activation state is different */ + if (kone->settings.tcu != state) { + kone->settings.tcu = state; + kone_set_settings_checksum(&kone->settings); + + retval = kone_set_settings(usb_dev, &kone->settings); + if (retval) { + dev_err(&usb_dev->dev, "couldn't set tcu state\n"); + /* + * try to reread valid settings into buffer overwriting + * first error code + */ + retval = kone_get_settings(usb_dev, &kone->settings); + if (retval) + goto exit_no_settings; + goto exit_unlock; + } + } + + retval = size; +exit_no_settings: + dev_err(&usb_dev->dev, "couldn't read settings\n"); +exit_unlock: + mutex_unlock(&kone->kone_lock); + return retval; +} + +static ssize_t kone_sysfs_show_startup_profile(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + return snprintf(buf, PAGE_SIZE, "%d\n", kone->settings.startup_profile); +} + +static ssize_t kone_sysfs_set_startup_profile(struct device *dev, + struct device_attribute *attr, char const *buf, size_t size) +{ + struct kone_device *kone = hid_get_drvdata(dev_get_drvdata(dev)); + struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev)); + int retval; + unsigned long new_startup_profile; + + retval = strict_strtoul(buf, 10, &new_startup_profile); + if (retval) + return retval; + + if (new_startup_profile < 1 || new_startup_profile > 5) + return -EINVAL; + + mutex_lock(&kone->kone_lock); + + kone->settings.startup_profile = new_startup_profile; + kone_set_settings_checksum(&kone->settings); + + retval = kone_set_settings(usb_dev, &kone->settings); + + mutex_unlock(&kone->kone_lock); + + if (retval) + return retval; + + /* changing the startup profile immediately activates this profile */ + kone->actual_profile = new_startup_profile; + kone->actual_dpi = kone->profiles[kone->actual_profile - 1].startup_dpi; + + return size; +} + +/* + * This file is used by userland software to find devices that are handled by + * this driver. This provides a consistent way for actual and older kernels + * where this driver replaced usbhid instead of generic-usb. + * Driver capabilities are determined by version number. + */ +static ssize_t kone_sysfs_show_driver_version(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, DRIVER_VERSION "\n"); +} + +/* + * Read actual dpi settings. + * Returns raw value for further processing. Refer to enum kone_polling_rates to + * get real value. + */ +static DEVICE_ATTR(actual_dpi, 0440, kone_sysfs_show_actual_dpi, NULL); + +static DEVICE_ATTR(actual_profile, 0440, kone_sysfs_show_actual_profile, NULL); + +/* + * The mouse can be equipped with one of four supplied weights from 5 to 20 + * grams which are recognized and its value can be read out. + * This returns the raw value reported by the mouse for easy evaluation by + * software. Refer to enum kone_weights to get corresponding real weight. + */ +static DEVICE_ATTR(weight, 0440, kone_sysfs_show_weight, NULL); + +/* + * Prints firmware version stored in mouse as integer. + * The raw value reported by the mouse is returned for easy evaluation, to get + * the real version number the decimal point has to be shifted 2 positions to + * the left. E.g. a value of 138 means 1.38. + */ +static DEVICE_ATTR(firmware_version, 0440, + kone_sysfs_show_firmware_version, NULL); + +/* + * Prints state of Tracking Control Unit as number where 0 = off and 1 = on + * Writing 0 deactivates tcu and writing 1 calibrates and activates the tcu + */ +static DEVICE_ATTR(tcu, 0660, kone_sysfs_show_tcu, kone_sysfs_set_tcu); + +/* Prints and takes the number of the profile the mouse starts with */ +static DEVICE_ATTR(startup_profile, 0660, + kone_sysfs_show_startup_profile, + kone_sysfs_set_startup_profile); + +static DEVICE_ATTR(kone_driver_version, 0440, + kone_sysfs_show_driver_version, NULL); + +static struct attribute *kone_attributes[] = { + &dev_attr_actual_dpi.attr, + &dev_attr_actual_profile.attr, + &dev_attr_weight.attr, + &dev_attr_firmware_version.attr, + &dev_attr_tcu.attr, + &dev_attr_startup_profile.attr, + &dev_attr_kone_driver_version.attr, + NULL +}; + +static struct attribute_group kone_attribute_group = { + .attrs = kone_attributes +}; + +static struct bin_attribute kone_settings_attr = { + .attr = { .name = "settings", .mode = 0660 }, + .size = sizeof(struct kone_settings), + .read = kone_sysfs_read_settings, + .write = kone_sysfs_write_settings +}; + +static struct bin_attribute kone_profile1_attr = { + .attr = { .name = "profile1", .mode = 0660 }, + .size = sizeof(struct kone_profile), + .read = kone_sysfs_read_profile1, + .write = kone_sysfs_write_profile1 +}; + +static struct bin_attribute kone_profile2_attr = { + .attr = { .name = "profile2", .mode = 0660 }, + .size = sizeof(struct kone_profile), + .read = kone_sysfs_read_profile2, + .write = kone_sysfs_write_profile2 +}; + +static struct bin_attribute kone_profile3_attr = { + .attr = { .name = "profile3", .mode = 0660 }, + .size = sizeof(struct kone_profile), + .read = kone_sysfs_read_profile3, + .write = kone_sysfs_write_profile3 +}; + +static struct bin_attribute kone_profile4_attr = { + .attr = { .name = "profile4", .mode = 0660 }, + .size = sizeof(struct kone_profile), + .read = kone_sysfs_read_profile4, + .write = kone_sysfs_write_profile4 +}; + +static struct bin_attribute kone_profile5_attr = { + .attr = { .name = "profile5", .mode = 0660 }, + .size = sizeof(struct kone_profile), + .read = kone_sysfs_read_profile5, + .write = kone_sysfs_write_profile5 +}; + +static int kone_create_sysfs_attributes(struct usb_interface *intf) +{ + int retval; + + retval = sysfs_create_group(&intf->dev.kobj, &kone_attribute_group); + if (retval) + goto exit_1; + + retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_settings_attr); + if (retval) + goto exit_2; + + retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_profile1_attr); + if (retval) + goto exit_3; + + retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_profile2_attr); + if (retval) + goto exit_4; + + retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_profile3_attr); + if (retval) + goto exit_5; + + retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_profile4_attr); + if (retval) + goto exit_6; + + retval = sysfs_create_bin_file(&intf->dev.kobj, &kone_profile5_attr); + if (retval) + goto exit_7; + + return 0; + +exit_7: + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile4_attr); +exit_6: + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile3_attr); +exit_5: + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile2_attr); +exit_4: + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile1_attr); +exit_3: + sysfs_remove_bin_file(&intf->dev.kobj, &kone_settings_attr); +exit_2: + sysfs_remove_group(&intf->dev.kobj, &kone_attribute_group); +exit_1: + return retval; +} + +static void kone_remove_sysfs_attributes(struct usb_interface *intf) +{ + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile5_attr); + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile4_attr); + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile3_attr); + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile2_attr); + sysfs_remove_bin_file(&intf->dev.kobj, &kone_profile1_attr); + sysfs_remove_bin_file(&intf->dev.kobj, &kone_settings_attr); + sysfs_remove_group(&intf->dev.kobj, &kone_attribute_group); +} + +static int kone_init_kone_device_struct(struct usb_device *usb_dev, + struct kone_device *kone) +{ + uint i; + int retval; + + mutex_init(&kone->kone_lock); + + for (i = 0; i < 5; ++i) { + retval = kone_get_profile(usb_dev, &kone->profiles[i], i + 1); + if (retval) + return retval; + } + + retval = kone_get_settings(usb_dev, &kone->settings); + if (retval) + return retval; + + retval = kone_get_firmware_version(usb_dev, &kone->firmware_version); + if (retval) + return retval; + + kone->actual_profile = kone->settings.startup_profile; + kone->actual_dpi = kone->profiles[kone->actual_profile].startup_dpi; + + return 0; +} + +/* + * Since IGNORE_MOUSE quirk moved to hid-apple, there is no way to bind only to + * mousepart if usb_hid is compiled into the kernel and kone is compiled as + * module. + * Secial behaviour is bound only to mousepart since only mouseevents contain + * additional notifications. + */ +static int kone_init_specials(struct hid_device *hdev) +{ + struct usb_interface *intf = to_usb_interface(hdev->dev.parent); + struct usb_device *usb_dev = interface_to_usbdev(intf); + struct kone_device *kone; + int retval; + + if (intf->cur_altsetting->desc.bInterfaceProtocol + == USB_INTERFACE_PROTOCOL_MOUSE) { + + kone = kzalloc(sizeof(*kone), GFP_KERNEL); + if (!kone) { + dev_err(&hdev->dev, "can't alloc device descriptor\n"); + return -ENOMEM; + } + hid_set_drvdata(hdev, kone); + + retval = kone_init_kone_device_struct(usb_dev, kone); + if (retval) { + dev_err(&hdev->dev, + "couldn't init struct kone_device\n"); + goto exit_free; + } + retval = kone_create_sysfs_attributes(intf); + if (retval) { + dev_err(&hdev->dev, "cannot create sysfs files\n"); + goto exit_free; + } + } else { + hid_set_drvdata(hdev, NULL); + } + + return 0; +exit_free: + kfree(kone); + return retval; +} + + +static void kone_remove_specials(struct hid_device *hdev) +{ + struct usb_interface *intf = to_usb_interface(hdev->dev.parent); + + if (intf->cur_altsetting->desc.bInterfaceProtocol + == USB_INTERFACE_PROTOCOL_MOUSE) { + kone_remove_sysfs_attributes(intf); + kfree(hid_get_drvdata(hdev)); + } +} + +static int kone_probe(struct hid_device *hdev, const struct hid_device_id *id) +{ + int retval; + + retval = hid_parse(hdev); + if (retval) { + dev_err(&hdev->dev, "parse failed\n"); + goto exit; + } + + retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT); + if (retval) { + dev_err(&hdev->dev, "hw start failed\n"); + goto exit; + } + + retval = kone_init_specials(hdev); + if (retval) { + dev_err(&hdev->dev, "couldn't install mouse\n"); + goto exit_stop; + } + + return 0; + +exit_stop: + hid_hw_stop(hdev); +exit: + return retval; +} + +static void kone_remove(struct hid_device *hdev) +{ + kone_remove_specials(hdev); + hid_hw_stop(hdev); +} + +/* + * Is called for keyboard- and mousepart. + * Only mousepart gets informations about special events in its extended event + * structure. + */ +static int kone_raw_event(struct hid_device *hdev, struct hid_report *report, + u8 *data, int size) +{ + struct kone_device *kone = hid_get_drvdata(hdev); + struct kone_mouse_event *event = (struct kone_mouse_event *)data; + + /* keyboard events are always processed by default handler */ + if (size != sizeof(struct kone_mouse_event)) + return 0; + + /* + * Firmware 1.38 introduced new behaviour for tilt buttons. + * Pressed tilt button is reported in each movement event. + * Workaround sends only one event per press. + */ + if (kone->last_tilt_state == event->tilt) + event->tilt = 0; + else + kone->last_tilt_state = event->tilt; + + /* + * handle special events and keep actual profile and dpi values + * up to date + */ + switch (event->event) { + case kone_mouse_event_osd_dpi: + dev_dbg(&hdev->dev, "osd dpi event. actual dpi %d\n", + event->value); + return 1; /* return 1 if event was handled */ + case kone_mouse_event_switch_dpi: + kone->actual_dpi = event->value; + dev_dbg(&hdev->dev, "switched dpi to %d\n", event->value); + return 1; + case kone_mouse_event_osd_profile: + dev_dbg(&hdev->dev, "osd profile event. actual profile %d\n", + event->value); + return 1; + case kone_mouse_event_switch_profile: + kone->actual_profile = event->value; + kone->actual_dpi = kone->profiles[kone->actual_profile - 1]. + startup_dpi; + dev_dbg(&hdev->dev, "switched profile to %d\n", event->value); + return 1; + case kone_mouse_event_call_overlong_macro: + dev_dbg(&hdev->dev, "overlong macro called, button %d %s/%s\n", + event->macro_key, + kone->profiles[kone->actual_profile - 1]. + button_infos[event->macro_key].macro_set_name, + kone->profiles[kone->actual_profile - 1]. + button_infos[event->macro_key].macro_name + ); + return 1; + } + + return 0; /* do further processing */ +} + +static const struct hid_device_id kone_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) }, + { } +}; + +MODULE_DEVICE_TABLE(hid, kone_devices); + +static struct hid_driver kone_driver = { + .name = "kone", + .id_table = kone_devices, + .probe = kone_probe, + .remove = kone_remove, + .raw_event = kone_raw_event +}; + +static int kone_init(void) +{ + return hid_register_driver(&kone_driver); +} + +static void kone_exit(void) +{ + hid_unregister_driver(&kone_driver); +} + +module_init(kone_init); +module_exit(kone_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE(DRIVER_LICENSE); diff --git a/drivers/hid/hid-roccat-kone.h b/drivers/hid/hid-roccat-kone.h new file mode 100644 index 00000000000..ee6898c9d92 --- /dev/null +++ b/drivers/hid/hid-roccat-kone.h @@ -0,0 +1,214 @@ +#ifndef __HID_ROCCAT_KONE_H +#define __HID_ROCCAT_KONE_H + +/* + * Copyright (c) 2010 Stefan Achatz + */ + +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#include + +#define DRIVER_VERSION "v0.3.0" +#define DRIVER_AUTHOR "Stefan Achatz" +#define DRIVER_DESC "USB Roccat Kone driver" +#define DRIVER_LICENSE "GPL v2" + +#pragma pack(push) +#pragma pack(1) + +struct kone_keystroke { + uint8_t key; + uint8_t action; + uint16_t period; /* in milliseconds */ +}; + +enum kone_keystroke_buttons { + kone_keystroke_button_1 = 0xf0, /* left mouse button */ + kone_keystroke_button_2 = 0xf1, /* right mouse button */ + kone_keystroke_button_3 = 0xf2, /* wheel */ + kone_keystroke_button_9 = 0xf3, /* side button up */ + kone_keystroke_button_8 = 0xf4 /* side button down */ +}; + +enum kone_keystroke_actions { + kone_keystroke_action_press = 0, + kone_keystroke_action_release = 1 +}; + +struct kone_button_info { + uint8_t number; /* range 1-8 */ + uint8_t type; + uint8_t macro_type; /* 0 = short, 1 = overlong */ + uint8_t macro_set_name[16]; /* can be max 15 chars long */ + uint8_t macro_name[16]; /* can be max 15 chars long */ + uint8_t count; + struct kone_keystroke keystrokes[20]; +}; + +enum kone_button_info_types { + /* valid button types until firmware 1.32 */ + kone_button_info_type_button_1 = 0x1, /* click (left mouse button) */ + kone_button_info_type_button_2 = 0x2, /* menu (right mouse button)*/ + kone_button_info_type_button_3 = 0x3, /* scroll (wheel) */ + kone_button_info_type_double_click = 0x4, + kone_button_info_type_key = 0x5, + kone_button_info_type_macro = 0x6, + kone_button_info_type_off = 0x7, + /* TODO clarify function and rename */ + kone_button_info_type_osd_xy_prescaling = 0x8, + kone_button_info_type_osd_dpi = 0x9, + kone_button_info_type_osd_profile = 0xa, + kone_button_info_type_button_9 = 0xb, /* ie forward */ + kone_button_info_type_button_8 = 0xc, /* ie backward */ + kone_button_info_type_dpi_up = 0xd, /* internal */ + kone_button_info_type_dpi_down = 0xe, /* internal */ + kone_button_info_type_button_7 = 0xf, /* tilt left */ + kone_button_info_type_button_6 = 0x10, /* tilt right */ + kone_button_info_type_profile_up = 0x11, /* internal */ + kone_button_info_type_profile_down = 0x12, /* internal */ + /* additional valid button types since firmware 1.38 */ + kone_button_info_type_multimedia_open_player = 0x20, + kone_button_info_type_multimedia_next_track = 0x21, + kone_button_info_type_multimedia_prev_track = 0x22, + kone_button_info_type_multimedia_play_pause = 0x23, + kone_button_info_type_multimedia_stop = 0x24, + kone_button_info_type_multimedia_mute = 0x25, + kone_button_info_type_multimedia_volume_up = 0x26, + kone_button_info_type_multimedia_volume_down = 0x27 +}; + +struct kone_light_info { + uint8_t number; /* number of light 1-5 */ + uint8_t mod; /* 1 = on, 2 = off */ + uint8_t red; /* range 0x00-0xff */ + uint8_t green; /* range 0x00-0xff */ + uint8_t blue; /* range 0x00-0xff */ +}; + +struct kone_profile { + uint16_t size; /* always 975 */ + uint16_t unused; /* always 0 */ + + /* + * range 1-5 + * This number does not need to correspond with location where profile + * saved + */ + uint8_t profile; /* range 1-5 */ + + uint16_t main_sensitivity; /* range 100-1000 */ + uint8_t xy_sensitivity_enabled; /* 1 = on, 2 = off */ + uint16_t x_sensitivity; /* range 100-1000 */ + uint16_t y_sensitivity; /* range 100-1000 */ + uint8_t dpi_rate; /* bit 1 = 800, ... */ + uint8_t startup_dpi; /* range 1-6 */ + uint8_t polling_rate; /* 1 = 125Hz, 2 = 500Hz, 3 = 1000Hz */ + /* kone has no dcu + * value is always 2 in firmwares <= 1.32 and + * 1 in firmwares > 1.32 + */ + uint8_t dcu_flag; + uint8_t light_effect_1; /* range 1-3 */ + uint8_t light_effect_2; /* range 1-5 */ + uint8_t light_effect_3; /* range 1-4 */ + uint8_t light_effect_speed; /* range 0-255 */ + + struct kone_light_info light_infos[5]; + struct kone_button_info button_infos[8]; + + uint16_t checksum; /* \brief holds checksum of struct */ +}; + +enum kone_polling_rates { + kone_polling_rate_125 = 1, + kone_polling_rate_500 = 2, + kone_polling_rate_1000 = 3 +}; + +struct kone_settings { + uint16_t size; /* always 36 */ + uint8_t startup_profile; /* 1-5 */ + uint8_t unknown1; + uint8_t tcu; /* 0 = off, 1 = on */ + uint8_t unknown2[23]; + uint8_t calibration_data[4]; + uint8_t unknown3[2]; + uint16_t checksum; +}; + +/* + * 12 byte mouse event read by interrupt_read + */ +struct kone_mouse_event { + uint8_t report_number; /* always 1 */ + uint8_t button; + uint16_t x; + uint16_t y; + uint8_t wheel; /* up = 1, down = -1 */ + uint8_t tilt; /* right = 1, left = -1 */ + uint8_t unknown; + uint8_t event; + uint8_t value; /* press = 0, release = 1 */ + uint8_t macro_key; /* 0 to 8 */ +}; + +enum kone_mouse_events { + /* osd events are thought to be display on screen */ + kone_mouse_event_osd_dpi = 0xa0, + kone_mouse_event_osd_profile = 0xb0, + /* TODO clarify meaning and occurence of kone_mouse_event_calibration */ + kone_mouse_event_calibration = 0xc0, + kone_mouse_event_call_overlong_macro = 0xe0, + /* switch events notify if user changed values wiht mousebutton click */ + kone_mouse_event_switch_dpi = 0xf0, + kone_mouse_event_switch_profile = 0xf1 +}; + +enum kone_commands { + kone_command_profile = 0x5a, + kone_command_settings = 0x15a, + kone_command_firmware_version = 0x25a, + kone_command_weight = 0x45a, + kone_command_calibrate = 0x55a, + kone_command_confirm_write = 0x65a, + kone_command_firmware = 0xe5a +}; + +#pragma pack(pop) + +struct kone_device { + /* + * Storing actual values when we get informed about changes since there + * is no way of getting this information from the device on demand + */ + int actual_profile, actual_dpi; + /* Used for neutralizing abnormal tilt button behaviour */ + int last_tilt_state; + /* + * It's unlikely that multiple sysfs attributes are accessed at a time, + * so only one mutex is used to secure hardware access and profiles and + * settings of this struct. + */ + struct mutex kone_lock; + + /* + * Storing the data here reduces IO and ensures that data is available + * when its needed (E.g. interrupt handler). + */ + struct kone_profile profiles[5]; + struct kone_settings settings; + + /* + * firmware doesn't change unless firmware update is implemented, + * so it's read only once + */ + int firmware_version; +}; + +#endif -- cgit v1.2.3-70-g09d2 From 92d6b71ab906be706f3679353b30a8d2c3831144 Mon Sep 17 00:00:00 2001 From: Dimitri Sivanich Date: Thu, 11 Mar 2010 14:08:56 -0800 Subject: genirq: Expose irq_desc->node in proc/irq Expose irq_desc->node as /proc/irq/*/node. This file provides device hardware locality information for apps desiring to include hardware locality in irq mapping decisions. Signed-off-by: Dimitri Sivanich Cc: Ingo Molnar Signed-off-by: Andrew Morton Signed-off-by: Thomas Gleixner --- Documentation/filesystems/proc.txt | 4 ++++ kernel/irq/proc.c | 23 +++++++++++++++++++++++ 2 files changed, 27 insertions(+) (limited to 'Documentation') diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index a4f30faa4f1..6507d2ae523 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -566,6 +566,10 @@ The default_smp_affinity mask applies to all non-active IRQs, which are the IRQs which have not yet been allocated/activated, and hence which lack a /proc/irq/[0-9]* directory. +The node file on an SMP system shows the node to which the device using the IRQ +reports itself as being attached. This hardware locality information does not +include information about any possible driver locality preference. + prof_cpu_mask specifies which CPUs are to be profiled by the system wide profiler. Default value is ffffffff (all cpus). diff --git a/kernel/irq/proc.c b/kernel/irq/proc.c index 6f50eccc79c..e346e08f5c3 100644 --- a/kernel/irq/proc.c +++ b/kernel/irq/proc.c @@ -146,6 +146,26 @@ static const struct file_operations default_affinity_proc_fops = { .release = single_release, .write = default_affinity_write, }; + +static int irq_node_proc_show(struct seq_file *m, void *v) +{ + struct irq_desc *desc = irq_to_desc((long) m->private); + + seq_printf(m, "%d\n", desc->node); + return 0; +} + +static int irq_node_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, irq_node_proc_show, PDE(inode)->data); +} + +static const struct file_operations irq_node_proc_fops = { + .open = irq_node_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; #endif static int irq_spurious_proc_show(struct seq_file *m, void *v) @@ -230,6 +250,9 @@ void register_irq_proc(unsigned int irq, struct irq_desc *desc) /* create /proc/irq//smp_affinity */ proc_create_data("smp_affinity", 0600, desc->dir, &irq_affinity_proc_fops, (void *)(long)irq); + + proc_create_data("node", 0444, desc->dir, + &irq_node_proc_fops, (void *)(long)irq); #endif proc_create_data("spurious", 0444, desc->dir, -- cgit v1.2.3-70-g09d2 From 5239c4ff4ae9e810ba761518ad71b463f0ccbf3c Mon Sep 17 00:00:00 2001 From: Greg Thelen Date: Wed, 24 Mar 2010 14:48:30 -0700 Subject: cpuset: Fix documentation punctuation Fix cpusets.txt documentation punctuation. Signed-off-by: Greg Thelen Acked-by: Randy Dunlap Acked-by: Paul Menage Signed-off-by: Jiri Kosina --- Documentation/cgroups/cpusets.txt | 38 +++++++++++++++++++------------------- 1 file changed, 19 insertions(+), 19 deletions(-) (limited to 'Documentation') diff --git a/Documentation/cgroups/cpusets.txt b/Documentation/cgroups/cpusets.txt index 4160df82b3f..51682ab2dd1 100644 --- a/Documentation/cgroups/cpusets.txt +++ b/Documentation/cgroups/cpusets.txt @@ -42,7 +42,7 @@ Nodes to a set of tasks. In this document "Memory Node" refers to an on-line node that contains memory. Cpusets constrain the CPU and Memory placement of tasks to only -the resources within a tasks current cpuset. They form a nested +the resources within a task's current cpuset. They form a nested hierarchy visible in a virtual file system. These are the essential hooks, beyond what is already present, required to manage dynamic job placement on large systems. @@ -53,11 +53,11 @@ Documentation/cgroups/cgroups.txt. Requests by a task, using the sched_setaffinity(2) system call to include CPUs in its CPU affinity mask, and using the mbind(2) and set_mempolicy(2) system calls to include Memory Nodes in its memory -policy, are both filtered through that tasks cpuset, filtering out any +policy, are both filtered through that task's cpuset, filtering out any CPUs or Memory Nodes not in that cpuset. The scheduler will not schedule a task on a CPU that is not allowed in its cpus_allowed vector, and the kernel page allocator will not allocate a page on a -node that is not allowed in the requesting tasks mems_allowed vector. +node that is not allowed in the requesting task's mems_allowed vector. User level code may create and destroy cpusets by name in the cgroup virtual file system, manage the attributes and permissions of these @@ -121,9 +121,9 @@ Cpusets extends these two mechanisms as follows: - Each task in the system is attached to a cpuset, via a pointer in the task structure to a reference counted cgroup structure. - Calls to sched_setaffinity are filtered to just those CPUs - allowed in that tasks cpuset. + allowed in that task's cpuset. - Calls to mbind and set_mempolicy are filtered to just - those Memory Nodes allowed in that tasks cpuset. + those Memory Nodes allowed in that task's cpuset. - The root cpuset contains all the systems CPUs and Memory Nodes. - For any cpuset, one can define child cpusets containing a subset @@ -141,11 +141,11 @@ into the rest of the kernel, none in performance critical paths: - in init/main.c, to initialize the root cpuset at system boot. - in fork and exit, to attach and detach a task from its cpuset. - in sched_setaffinity, to mask the requested CPUs by what's - allowed in that tasks cpuset. + allowed in that task's cpuset. - in sched.c migrate_live_tasks(), to keep migrating tasks within the CPUs allowed by their cpuset, if possible. - in the mbind and set_mempolicy system calls, to mask the requested - Memory Nodes by what's allowed in that tasks cpuset. + Memory Nodes by what's allowed in that task's cpuset. - in page_alloc.c, to restrict memory to allowed nodes. - in vmscan.c, to restrict page recovery to the current cpuset. @@ -155,7 +155,7 @@ new system calls are added for cpusets - all support for querying and modifying cpusets is via this cpuset file system. The /proc//status file for each task has four added lines, -displaying the tasks cpus_allowed (on which CPUs it may be scheduled) +displaying the task's cpus_allowed (on which CPUs it may be scheduled) and mems_allowed (on which Memory Nodes it may obtain memory), in the two formats seen in the following example: @@ -323,17 +323,17 @@ stack segment pages of a task. By default, both kinds of memory spreading are off, and memory pages are allocated on the node local to where the task is running, -except perhaps as modified by the tasks NUMA mempolicy or cpuset +except perhaps as modified by the task's NUMA mempolicy or cpuset configuration, so long as sufficient free memory pages are available. When new cpusets are created, they inherit the memory spread settings of their parent. Setting memory spreading causes allocations for the affected page -or slab caches to ignore the tasks NUMA mempolicy and be spread +or slab caches to ignore the task's NUMA mempolicy and be spread instead. Tasks using mbind() or set_mempolicy() calls to set NUMA mempolicies will not notice any change in these calls as a result of -their containing tasks memory spread settings. If memory spreading +their containing task's memory spread settings. If memory spreading is turned off, then the currently specified NUMA mempolicy once again applies to memory page allocations. @@ -357,7 +357,7 @@ pages from the node returned by cpuset_mem_spread_node(). The cpuset_mem_spread_node() routine is also simple. It uses the value of a per-task rotor cpuset_mem_spread_rotor to select the next -node in the current tasks mems_allowed to prefer for the allocation. +node in the current task's mems_allowed to prefer for the allocation. This memory placement policy is also known (in other contexts) as round-robin or interleave. @@ -594,7 +594,7 @@ is attached, is subtle. If a cpuset has its Memory Nodes modified, then for each task attached to that cpuset, the next time that the kernel attempts to allocate a page of memory for that task, the kernel will notice the change -in the tasks cpuset, and update its per-task memory placement to +in the task's cpuset, and update its per-task memory placement to remain within the new cpusets memory placement. If the task was using mempolicy MPOL_BIND, and the nodes to which it was bound overlap with its new cpuset, then the task will continue to use whatever subset @@ -603,13 +603,13 @@ was using MPOL_BIND and now none of its MPOL_BIND nodes are allowed in the new cpuset, then the task will be essentially treated as if it was MPOL_BIND bound to the new cpuset (even though its NUMA placement, as queried by get_mempolicy(), doesn't change). If a task is moved -from one cpuset to another, then the kernel will adjust the tasks +from one cpuset to another, then the kernel will adjust the task's memory placement, as above, the next time that the kernel attempts to allocate a page of memory for that task. If a cpuset has its 'cpuset.cpus' modified, then each task in that cpuset will have its allowed CPU placement changed immediately. Similarly, -if a tasks pid is written to another cpusets 'cpuset.tasks' file, then its +if a task's pid is written to another cpusets 'cpuset.tasks' file, then its allowed CPU placement is changed immediately. If such a task had been bound to some subset of its cpuset using the sched_setaffinity() call, the task will be allowed to run on any CPU allowed in its new cpuset, @@ -626,16 +626,16 @@ cpusets memory placement policy 'cpuset.mems' subsequently changes. If the cpuset flag file 'cpuset.memory_migrate' is set true, then when tasks are attached to that cpuset, any pages that task had allocated to it on nodes in its previous cpuset are migrated -to the tasks new cpuset. The relative placement of the page within +to the task's new cpuset. The relative placement of the page within the cpuset is preserved during these migration operations if possible. For example if the page was on the second valid node of the prior cpuset then the page will be placed on the second valid node of the new cpuset. -Also if 'cpuset.memory_migrate' is set true, then if that cpusets +Also if 'cpuset.memory_migrate' is set true, then if that cpuset's 'cpuset.mems' file is modified, pages allocated to tasks in that cpuset, that were on nodes in the previous setting of 'cpuset.mems', will be moved to nodes in the new setting of 'mems.' -Pages that were not in the tasks prior cpuset, or in the cpusets +Pages that were not in the task's prior cpuset, or in the cpuset's prior 'cpuset.mems' setting, will not be moved. There is an exception to the above. If hotplug functionality is used @@ -655,7 +655,7 @@ There is a second exception to the above. GFP_ATOMIC requests are kernel internal allocations that must be satisfied, immediately. The kernel may drop some request, in rare cases even panic, if a GFP_ATOMIC alloc fails. If the request cannot be satisfied within -the current tasks cpuset, then we relax the cpuset, and look for +the current task's cpuset, then we relax the cpuset, and look for memory anywhere we can find it. It's better to violate the cpuset than stress the kernel. -- cgit v1.2.3-70-g09d2 From d879e19e18ebc69fc20a9b95612e9dd0acf4d7aa Mon Sep 17 00:00:00 2001 From: Jan Engelhardt Date: Mon, 22 Mar 2010 19:39:04 +0100 Subject: netfilter: xtables: remove xt_string revision 0 Superseded by xt_string revision 1 (linux v2.6.26-rc8-1127-g4ad3f26, iptables 1.4.2-rc1). Signed-off-by: Jan Engelhardt --- Documentation/Changes | 2 +- net/netfilter/xt_string.c | 53 ++++++++++++++++------------------------------- 2 files changed, 19 insertions(+), 36 deletions(-) (limited to 'Documentation') diff --git a/Documentation/Changes b/Documentation/Changes index f08b313cd23..eca9f6e6fbe 100644 --- a/Documentation/Changes +++ b/Documentation/Changes @@ -49,7 +49,7 @@ o oprofile 0.9 # oprofiled --version o udev 081 # udevinfo -V o grub 0.93 # grub --version o mcelog 0.6 -o iptables 1.4.1 # iptables -V +o iptables 1.4.2 # iptables -V Kernel compilation diff --git a/net/netfilter/xt_string.c b/net/netfilter/xt_string.c index b0f8292db6f..488e368a2c4 100644 --- a/net/netfilter/xt_string.c +++ b/net/netfilter/xt_string.c @@ -26,12 +26,10 @@ string_mt(const struct sk_buff *skb, const struct xt_match_param *par) { const struct xt_string_info *conf = par->matchinfo; struct ts_state state; - int invert; + bool invert; memset(&state, 0, sizeof(struct ts_state)); - - invert = (par->match->revision == 0 ? conf->u.v0.invert : - conf->u.v1.flags & XT_STRING_FLAG_INVERT); + invert = conf->u.v1.flags & XT_STRING_FLAG_INVERT; return (skb_find_text((struct sk_buff *)skb, conf->from_offset, conf->to_offset, conf->config, &state) @@ -53,13 +51,11 @@ static int string_mt_check(const struct xt_mtchk_param *par) return -EINVAL; if (conf->patlen > XT_STRING_MAX_PATTERN_SIZE) return -EINVAL; - if (par->match->revision == 1) { - if (conf->u.v1.flags & - ~(XT_STRING_FLAG_IGNORECASE | XT_STRING_FLAG_INVERT)) - return -EINVAL; - if (conf->u.v1.flags & XT_STRING_FLAG_IGNORECASE) - flags |= TS_IGNORECASE; - } + if (conf->u.v1.flags & + ~(XT_STRING_FLAG_IGNORECASE | XT_STRING_FLAG_INVERT)) + return -EINVAL; + if (conf->u.v1.flags & XT_STRING_FLAG_IGNORECASE) + flags |= TS_IGNORECASE; ts_conf = textsearch_prepare(conf->algo, conf->pattern, conf->patlen, GFP_KERNEL, flags); if (IS_ERR(ts_conf)) @@ -74,38 +70,25 @@ static void string_mt_destroy(const struct xt_mtdtor_param *par) textsearch_destroy(STRING_TEXT_PRIV(par->matchinfo)->config); } -static struct xt_match xt_string_mt_reg[] __read_mostly = { - { - .name = "string", - .revision = 0, - .family = NFPROTO_UNSPEC, - .checkentry = string_mt_check, - .match = string_mt, - .destroy = string_mt_destroy, - .matchsize = sizeof(struct xt_string_info), - .me = THIS_MODULE - }, - { - .name = "string", - .revision = 1, - .family = NFPROTO_UNSPEC, - .checkentry = string_mt_check, - .match = string_mt, - .destroy = string_mt_destroy, - .matchsize = sizeof(struct xt_string_info), - .me = THIS_MODULE - }, +static struct xt_match xt_string_mt_reg __read_mostly = { + .name = "string", + .revision = 1, + .family = NFPROTO_UNSPEC, + .checkentry = string_mt_check, + .match = string_mt, + .destroy = string_mt_destroy, + .matchsize = sizeof(struct xt_string_info), + .me = THIS_MODULE, }; static int __init string_mt_init(void) { - return xt_register_matches(xt_string_mt_reg, - ARRAY_SIZE(xt_string_mt_reg)); + return xt_register_match(&xt_string_mt_reg); } static void __exit string_mt_exit(void) { - xt_unregister_matches(xt_string_mt_reg, ARRAY_SIZE(xt_string_mt_reg)); + xt_unregister_match(&xt_string_mt_reg); } module_init(string_mt_init); -- cgit v1.2.3-70-g09d2 From 225a9be24d799aa16d543c31fb09f0c9ed1d9caa Mon Sep 17 00:00:00 2001 From: Rajiv Andrade Date: Thu, 25 Mar 2010 00:55:32 -0300 Subject: TPM: workaround to enforce PCR updates across suspends Add a workaround for TPM's which fail to flush last written PCR values in a TPM_SaveState, in preparation for suspend. Signed-off-by: David Safford Acked-by: Rajiv Andrade Signed-off-by: James Morris --- Documentation/kernel-parameters.txt | 10 ++++++++ drivers/char/tpm/tpm.c | 47 +++++++++++++++++++++++++++++++------ 2 files changed, 50 insertions(+), 7 deletions(-) (limited to 'Documentation') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index d80930d58da..e0df679c390 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -99,6 +99,7 @@ parameter is applicable: SWSUSP Software suspend (hibernation) is enabled. SUSPEND System suspend states are enabled. FTRACE Function tracing enabled. + TPM TPM drivers are enabled. TS Appropriate touchscreen support is enabled. UMS USB Mass Storage support is enabled. USB USB support is enabled. @@ -2619,6 +2620,15 @@ and is between 256 and 4096 characters. It is defined in the file tp720= [HW,PS2] + tpm_suspend_pcr=[HW,TPM] + Format: integer pcr id + Specify that at suspend time, the tpm driver + should extend the specified pcr with zeros, + as a workaround for some chips which fail to + flush the last written pcr on TPM_SaveState. + This will guarantee that all the other pcrs + are saved. + trace_buf_size=nn[KMG] [FTRACE] will set tracing buffer size. diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c index f06bb37defb..5c447c991bd 100644 --- a/drivers/char/tpm/tpm.c +++ b/drivers/char/tpm/tpm.c @@ -1067,6 +1067,27 @@ void tpm_remove_hardware(struct device *dev) } EXPORT_SYMBOL_GPL(tpm_remove_hardware); +#define TPM_ORD_SAVESTATE cpu_to_be32(152) +#define SAVESTATE_RESULT_SIZE 10 + +static struct tpm_input_header savestate_header = { + .tag = TPM_TAG_RQU_COMMAND, + .length = cpu_to_be32(10), + .ordinal = TPM_ORD_SAVESTATE +}; + +/* Bug workaround - some TPM's don't flush the most + * recently changed pcr on suspend, so force the flush + * with an extend to the selected _unused_ non-volatile pcr. + */ +static int tpm_suspend_pcr; +static int __init tpm_suspend_setup(char *str) +{ + get_option(&str, &tpm_suspend_pcr); + return 1; +} +__setup("tpm_suspend_pcr=", tpm_suspend_setup); + /* * We are about to suspend. Save the TPM state * so that it can be restored. @@ -1074,17 +1095,29 @@ EXPORT_SYMBOL_GPL(tpm_remove_hardware); int tpm_pm_suspend(struct device *dev, pm_message_t pm_state) { struct tpm_chip *chip = dev_get_drvdata(dev); - u8 savestate[] = { - 0, 193, /* TPM_TAG_RQU_COMMAND */ - 0, 0, 0, 10, /* blob length (in bytes) */ - 0, 0, 0, 152 /* TPM_ORD_SaveState */ - }; + struct tpm_cmd_t cmd; + int rc; + + u8 dummy_hash[TPM_DIGEST_SIZE] = { 0 }; if (chip == NULL) return -ENODEV; - tpm_transmit(chip, savestate, sizeof(savestate)); - return 0; + /* for buggy tpm, flush pcrs with extend to selected dummy */ + if (tpm_suspend_pcr) { + cmd.header.in = pcrextend_header; + cmd.params.pcrextend_in.pcr_idx = cpu_to_be32(tpm_suspend_pcr); + memcpy(cmd.params.pcrextend_in.hash, dummy_hash, + TPM_DIGEST_SIZE); + rc = transmit_cmd(chip, &cmd, EXTEND_PCR_RESULT_SIZE, + "extending dummy pcr before suspend"); + } + + /* now do the actual savestate */ + cmd.header.in = savestate_header; + rc = transmit_cmd(chip, &cmd, SAVESTATE_RESULT_SIZE, + "sending savestate before suspend"); + return rc; } EXPORT_SYMBOL_GPL(tpm_pm_suspend); -- cgit v1.2.3-70-g09d2 From cd508fe58b07499403e806b558c7f15c90442292 Mon Sep 17 00:00:00 2001 From: Jaroslav Kysela Date: Fri, 26 Mar 2010 10:28:46 +0100 Subject: ALSA: hda-intel - add special 'hwio' model to bypass initialization Using the 'model=hwio' option, the driver bypasses any codec initialization and the reset procedure for codecs is also bypassed. This mode is usefull to enable direct access using hwdep interface (using hdaverb or hda-analyzer tools) and retain codec setup from BIOS. Signed-off-by: Jaroslav Kysela --- Documentation/sound/alsa/HD-Audio.txt | 5 +++++ sound/pci/hda/hda_codec.c | 10 ++++++++-- sound/pci/hda/hda_intel.c | 20 ++++++++++++-------- 3 files changed, 25 insertions(+), 10 deletions(-) (limited to 'Documentation') diff --git a/Documentation/sound/alsa/HD-Audio.txt b/Documentation/sound/alsa/HD-Audio.txt index f4dd3bf99d1..ecacf53a865 100644 --- a/Documentation/sound/alsa/HD-Audio.txt +++ b/Documentation/sound/alsa/HD-Audio.txt @@ -196,6 +196,11 @@ generic parser regardless of the codec. Usually the codec-specific parser is much better than the generic parser (as now). Thus this option is more about the debugging purpose. +Another special meaning has 'model=hwio'. For this model, the driver +bypasses any codec initialization and the reset procedure for codecs +is also bypassed. This mode is usefull to enable direct access using +hwdep interface (using hdaverb or hda-analyzer tools) and retain +codec setup from BIOS. Speaker and Headphone Output ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 0e76ac2b2ac..cf6280bdaa1 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -609,11 +609,15 @@ int /*__devinit*/ snd_hda_bus_new(struct snd_card *card, } EXPORT_SYMBOL_HDA(snd_hda_bus_new); +#define is_hwio_config(codec) \ + (codec->modelname && !strcmp(codec->modelname, "hwio")) #ifdef CONFIG_SND_HDA_GENERIC #define is_generic_config(codec) \ - (codec->modelname && !strcmp(codec->modelname, "generic")) + ((codec->modelname && !strcmp(codec->modelname, "generic")) || \ + is_hwio_config(codec)) #else -#define is_generic_config(codec) 0 +#define is_generic_config(codec) \ + is_hwio_config(codec) #endif #ifdef MODULE @@ -1113,6 +1117,8 @@ int snd_hda_codec_configure(struct hda_codec *codec) } if (is_generic_config(codec)) { + if (is_hwio_config(codec)) + goto patched; err = snd_hda_parse_generic_codec(codec); goto patched; } diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 8b2915631cc..8d477613bcc 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -858,10 +858,13 @@ static void azx_power_notify(struct hda_bus *bus); #endif /* reset codec link */ -static int azx_reset(struct azx *chip) +static int azx_reset(struct azx *chip, int full_reset) { int count; + if (!full_reset) + goto __skip; + /* clear STATESTS */ azx_writeb(chip, STATESTS, STATESTS_INT_MASK); @@ -887,6 +890,7 @@ static int azx_reset(struct azx *chip) /* Brent Chartrand said to wait >= 540us for codecs to initialize */ msleep(1); + __skip: /* check to see if controller is ready */ if (!azx_readb(chip, GCTL)) { snd_printd(SFX "azx_reset: controller not ready!\n"); @@ -998,13 +1002,13 @@ static void azx_stream_stop(struct azx *chip, struct azx_dev *azx_dev) /* * reset and start the controller registers */ -static void azx_init_chip(struct azx *chip) +static void azx_init_chip(struct azx *chip, int full_reset) { if (chip->initialized) return; /* reset controller */ - azx_reset(chip); + azx_reset(chip, full_reset); /* initialize interrupts */ azx_int_clear(chip); @@ -1348,7 +1352,7 @@ static void azx_bus_reset(struct hda_bus *bus) bus->in_reset = 1; azx_stop_chip(chip); - azx_init_chip(chip); + azx_init_chip(chip, 1); #ifdef CONFIG_PM if (chip->initialized) { int i; @@ -1422,7 +1426,7 @@ static int __devinit azx_codec_create(struct azx *chip, const char *model) * get back to the sanity state. */ azx_stop_chip(chip); - azx_init_chip(chip); + azx_init_chip(chip, 1); } } } @@ -2112,7 +2116,7 @@ static void azx_power_notify(struct hda_bus *bus) } } if (power_on) - azx_init_chip(chip); + azx_init_chip(chip, 1); else if (chip->running && power_save_controller && !bus->power_keep_link_on) azx_stop_chip(chip); @@ -2182,7 +2186,7 @@ static int azx_resume(struct pci_dev *pci) azx_init_pci(chip); if (snd_hda_codecs_inuse(chip->bus)) - azx_init_chip(chip); + azx_init_chip(chip, 1); snd_hda_resume(chip->bus); snd_power_change_state(card, SNDRV_CTL_POWER_D0); @@ -2573,7 +2577,7 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, /* initialize chip */ azx_init_pci(chip); - azx_init_chip(chip); + azx_init_chip(chip, model[dev] == NULL || strcmp(model[dev], "hwio")); /* codec detection */ if (!chip->codec_mask) { -- cgit v1.2.3-70-g09d2 From 10e77ddac0e1f3b9cea04dfe8180f8641f329703 Mon Sep 17 00:00:00 2001 From: Jaroslav Kysela Date: Fri, 26 Mar 2010 11:04:38 +0100 Subject: ALSA: hda-intel - remove model=hwio , use probe_only=3 instead The probe_only module parameter skips the codec initialization, too. Remove the model=hwio code and use second bit in probe_only to skip the HDA codec reset procedure. Signed-off-by: Jaroslav Kysela --- Documentation/sound/alsa/HD-Audio.txt | 3 +++ sound/pci/hda/hda_codec.c | 10 ++-------- sound/pci/hda/hda_intel.c | 4 ++-- 3 files changed, 7 insertions(+), 10 deletions(-) (limited to 'Documentation') diff --git a/Documentation/sound/alsa/HD-Audio.txt b/Documentation/sound/alsa/HD-Audio.txt index ecacf53a865..232a9077522 100644 --- a/Documentation/sound/alsa/HD-Audio.txt +++ b/Documentation/sound/alsa/HD-Audio.txt @@ -597,6 +597,9 @@ probing, the proc file is available, so you can get the raw codec information before modified by the driver. Of course, the driver isn't usable with `probe_only=1`. But you can continue the configuration via hwdep sysfs file if hda-reconfig option is enabled. +Using `probe_only` mask 2 skips the reset of HDA codecs (use +`probe_only=3` as module option). The hwdep interface can be used +to determine the BIOS codec initialization. hda-verb diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index cf6280bdaa1..0e76ac2b2ac 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -609,15 +609,11 @@ int /*__devinit*/ snd_hda_bus_new(struct snd_card *card, } EXPORT_SYMBOL_HDA(snd_hda_bus_new); -#define is_hwio_config(codec) \ - (codec->modelname && !strcmp(codec->modelname, "hwio")) #ifdef CONFIG_SND_HDA_GENERIC #define is_generic_config(codec) \ - ((codec->modelname && !strcmp(codec->modelname, "generic")) || \ - is_hwio_config(codec)) + (codec->modelname && !strcmp(codec->modelname, "generic")) #else -#define is_generic_config(codec) \ - is_hwio_config(codec) +#define is_generic_config(codec) 0 #endif #ifdef MODULE @@ -1117,8 +1113,6 @@ int snd_hda_codec_configure(struct hda_codec *codec) } if (is_generic_config(codec)) { - if (is_hwio_config(codec)) - goto patched; err = snd_hda_parse_generic_codec(codec); goto patched; } diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 8d477613bcc..6ce673c17ff 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -2577,7 +2577,7 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci, /* initialize chip */ azx_init_pci(chip); - azx_init_chip(chip, model[dev] == NULL || strcmp(model[dev], "hwio")); + azx_init_chip(chip, (probe_only[dev] & 2) == 0); /* codec detection */ if (!chip->codec_mask) { @@ -2666,7 +2666,7 @@ static int __devinit azx_probe(struct pci_dev *pci, goto out_free; } #endif - if (!probe_only[dev]) { + if ((probe_only[dev] & 1) == 0) { err = azx_codec_configure(chip); if (err < 0) goto out_free; -- cgit v1.2.3-70-g09d2 From 38f57968f45333585293e88ea12ca577811fb9a7 Mon Sep 17 00:00:00 2001 From: Jaroslav Kysela Date: Fri, 26 Mar 2010 11:14:55 +0100 Subject: ALSA: hda-intel - remove model=hwio from documentation Signed-off-by: Jaroslav Kysela --- Documentation/sound/alsa/HD-Audio.txt | 6 ------ 1 file changed, 6 deletions(-) (limited to 'Documentation') diff --git a/Documentation/sound/alsa/HD-Audio.txt b/Documentation/sound/alsa/HD-Audio.txt index 232a9077522..bdb220c2831 100644 --- a/Documentation/sound/alsa/HD-Audio.txt +++ b/Documentation/sound/alsa/HD-Audio.txt @@ -196,12 +196,6 @@ generic parser regardless of the codec. Usually the codec-specific parser is much better than the generic parser (as now). Thus this option is more about the debugging purpose. -Another special meaning has 'model=hwio'. For this model, the driver -bypasses any codec initialization and the reset procedure for codecs -is also bypassed. This mode is usefull to enable direct access using -hwdep interface (using hdaverb or hda-analyzer tools) and retain -codec setup from BIOS. - Speaker and Headphone Output ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ One of the most frequent (and obvious) bugs with HD-audio is the -- cgit v1.2.3-70-g09d2 From 4cb947b59c5835783fb96aad2f7d92b1e4250aff Mon Sep 17 00:00:00 2001 From: Andrea Gelmini Date: Thu, 25 Mar 2010 11:04:49 +0100 Subject: GFS2: docs update Now http://sources.redhat.com/cluster/ is redirected to http://sources.redhat.com/cluster/wiki/ Also fixed tabs in the end. Signed-off-by: Andrea Gelmini Signed-off-by: Steven Whitehouse --- Documentation/filesystems/gfs2.txt | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/gfs2.txt b/Documentation/filesystems/gfs2.txt index 5e3ab8f3bef..0b59c020091 100644 --- a/Documentation/filesystems/gfs2.txt +++ b/Documentation/filesystems/gfs2.txt @@ -1,7 +1,7 @@ Global File System ------------------ -http://sources.redhat.com/cluster/ +http://sources.redhat.com/cluster/wiki/ GFS is a cluster file system. It allows a cluster of computers to simultaneously use a block device that is shared between them (with FC, @@ -36,11 +36,11 @@ GFS2 is not on-disk compatible with previous versions of GFS, but it is pretty close. The following man pages can be found at the URL above: - fsck.gfs2 to repair a filesystem - gfs2_grow to expand a filesystem online - gfs2_jadd to add journals to a filesystem online - gfs2_tool to manipulate, examine and tune a filesystem + fsck.gfs2 to repair a filesystem + gfs2_grow to expand a filesystem online + gfs2_jadd to add journals to a filesystem online + gfs2_tool to manipulate, examine and tune a filesystem gfs2_quota to examine and change quota values in a filesystem gfs2_convert to convert a gfs filesystem to gfs2 in-place mount.gfs2 to help mount(8) mount a filesystem - mkfs.gfs2 to make a filesystem + mkfs.gfs2 to make a filesystem -- cgit v1.2.3-70-g09d2 From f77f13e22df4a40d237697df496152c8c37f3f2b Mon Sep 17 00:00:00 2001 From: Gilles Espinasse Date: Mon, 29 Mar 2010 15:41:47 +0200 Subject: Fix comment and Kconfig typos for 'require' and 'fragment' Signed-off-by: Gilles Espinasse Signed-off-by: Jiri Kosina --- Documentation/powerpc/dts-bindings/xilinx.txt | 2 +- arch/mips/sibyte/bcm1480/irq.c | 2 +- arch/mips/sibyte/sb1250/irq.c | 2 +- crypto/Kconfig | 2 +- drivers/gpu/drm/i915/intel_display.c | 4 ++-- drivers/gpu/drm/radeon/atombios.h | 4 ++-- drivers/isdn/hardware/mISDN/hfcmulti.c | 2 +- drivers/net/bnx2x_hsi.h | 2 +- drivers/net/ps3_gelic_wireless.c | 2 +- drivers/staging/vt6655/rxtx.c | 14 +++++++------- drivers/staging/vt6656/rxtx.c | 6 +++--- drivers/usb/wusbcore/wa-xfer.c | 2 +- net/ipv4/ipmr.c | 2 +- scripts/package/mkspec | 2 +- 14 files changed, 24 insertions(+), 24 deletions(-) (limited to 'Documentation') diff --git a/Documentation/powerpc/dts-bindings/xilinx.txt b/Documentation/powerpc/dts-bindings/xilinx.txt index ea68046bb9c..299d0923537 100644 --- a/Documentation/powerpc/dts-bindings/xilinx.txt +++ b/Documentation/powerpc/dts-bindings/xilinx.txt @@ -11,7 +11,7 @@ control how the core is synthesized. Historically, the EDK tool would extract the device parameters relevant to device drivers and copy them into an 'xparameters.h' in the form of #define symbols. This tells the - device drivers how the IP cores are configured, but it requres the kernel + device drivers how the IP cores are configured, but it requires the kernel to be recompiled every time the FPGA bitstream is resynthesized. The new approach is to export the parameters into the device tree and diff --git a/arch/mips/sibyte/bcm1480/irq.c b/arch/mips/sibyte/bcm1480/irq.c index 06e25d94976..3fbb033e23d 100644 --- a/arch/mips/sibyte/bcm1480/irq.c +++ b/arch/mips/sibyte/bcm1480/irq.c @@ -254,7 +254,7 @@ void __init init_bcm1480_irqs(void) * On the second cpu, everything is set to IP5, which is * ignored, EXCEPT the mailbox interrupt. That one is * set to IP[2] so it is handled. This is needed so we - * can do cross-cpu function calls, as requred by SMP + * can do cross-cpu function calls, as required by SMP */ #define IMR_IP2_VAL K_BCM1480_INT_MAP_I0 diff --git a/arch/mips/sibyte/sb1250/irq.c b/arch/mips/sibyte/sb1250/irq.c index ab44a2f59ee..b452e3c8279 100644 --- a/arch/mips/sibyte/sb1250/irq.c +++ b/arch/mips/sibyte/sb1250/irq.c @@ -237,7 +237,7 @@ void __init init_sb1250_irqs(void) * On the second cpu, everything is set to IP5, which is * ignored, EXCEPT the mailbox interrupt. That one is * set to IP[2] so it is handled. This is needed so we - * can do cross-cpu function calls, as requred by SMP + * can do cross-cpu function calls, as required by SMP */ #define IMR_IP2_VAL K_INT_MAP_I0 diff --git a/crypto/Kconfig b/crypto/Kconfig index 403857ad06d..9d9434f08c9 100644 --- a/crypto/Kconfig +++ b/crypto/Kconfig @@ -28,7 +28,7 @@ config CRYPTO_FIPS This options enables the fips boot option which is required if you want to system to operate in a FIPS 200 certification. You should say no unless you know what - this is. Note that CRYPTO_ANSI_CPRNG is requred if this + this is. Note that CRYPTO_ANSI_CPRNG is required if this option is selected config CRYPTO_ALGAPI diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 9cd6de5f990..c297fc22867 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -904,9 +904,9 @@ intel_g4x_find_best_PLL(const intel_limit_t *limit, struct drm_crtc *crtc, memset(best_clock, 0, sizeof(*best_clock)); max_n = limit->n.max; - /* based on hardware requriment prefer smaller n to precision */ + /* based on hardware requirement, prefer smaller n to precision */ for (clock.n = limit->n.min; clock.n <= max_n; clock.n++) { - /* based on hardware requirment prefere larger m1,m2 */ + /* based on hardware requirement, prefere larger m1,m2 */ for (clock.m1 = limit->m1.max; clock.m1 >= limit->m1.min; clock.m1--) { for (clock.m2 = limit->m2.max; diff --git a/drivers/gpu/drm/radeon/atombios.h b/drivers/gpu/drm/radeon/atombios.h index 6732b5dd8ff..e91a815861f 100644 --- a/drivers/gpu/drm/radeon/atombios.h +++ b/drivers/gpu/drm/radeon/atombios.h @@ -3780,7 +3780,7 @@ typedef struct _ATOM_ASIC_SS_ASSIGNMENT UCHAR ucReserved[2]; }ATOM_ASIC_SS_ASSIGNMENT; -//Define ucClockIndication, SW uses the IDs below to search if the SS is requried/enabled on a clock branch/signal type. +//Define ucClockIndication, SW uses the IDs below to search if the SS is required/enabled on a clock branch/signal type. //SS is not required or enabled if a match is not found. #define ASIC_INTERNAL_MEMORY_SS 1 #define ASIC_INTERNAL_ENGINE_SS 2 @@ -5895,7 +5895,7 @@ typedef struct _ATOM_PPLIB_RS780_CLOCK_INFO UCHAR ucPadding; // For proper alignment and size. USHORT usVDDC; // For the 780, use: None, Low, High, Variable UCHAR ucMaxHTLinkWidth; // From SBIOS - {2, 4, 8, 16} - UCHAR ucMinHTLinkWidth; // From SBIOS - {2, 4, 8, 16}. Effective only if CDLW enabled. Minimum down stream width could be bigger as display BW requriement. + UCHAR ucMinHTLinkWidth; // From SBIOS - {2, 4, 8, 16}. Effective only if CDLW enabled. Minimum down stream width could be bigger as display BW requirement. USHORT usHTLinkFreq; // See definition ATOM_PPLIB_RS780_HTLINKFREQ_xxx or in MHz(>=200). ULONG ulFlags; } ATOM_PPLIB_RS780_CLOCK_INFO; diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c index ad36df9b759..fa82ce32aa4 100644 --- a/drivers/isdn/hardware/mISDN/hfcmulti.c +++ b/drivers/isdn/hardware/mISDN/hfcmulti.c @@ -117,7 +117,7 @@ * NOTE: only one mode value must be given for every card. * -> See hfc_multi.h for HFC_IO_MODE_* values * By default, the IO mode is pci memory IO (MEMIO). - * Some cards requre specific IO mode, so it cannot be changed. + * Some cards require specific IO mode, so it cannot be changed. * It may be usefull to set IO mode to register io (REGIO) to solve * PCI bridge problems. * If unsure, don't give this parameter. diff --git a/drivers/net/bnx2x_hsi.h b/drivers/net/bnx2x_hsi.h index 760069345b1..fd1f29e0317 100644 --- a/drivers/net/bnx2x_hsi.h +++ b/drivers/net/bnx2x_hsi.h @@ -683,7 +683,7 @@ struct drv_func_mb { #define DRV_MSG_CODE_GET_MANUF_KEY 0x82000000 #define DRV_MSG_CODE_LOAD_L2B_PRAM 0x90000000 /* - * The optic module verification commands requris bootcode + * The optic module verification commands require bootcode * v5.0.6 or later */ #define DRV_MSG_CODE_VRFY_OPT_MDL 0xa0000000 diff --git a/drivers/net/ps3_gelic_wireless.c b/drivers/net/ps3_gelic_wireless.c index 2663b2fdc0b..7fe54c261c4 100644 --- a/drivers/net/ps3_gelic_wireless.c +++ b/drivers/net/ps3_gelic_wireless.c @@ -95,7 +95,7 @@ static inline int precise_ie(void) * post_eurus_cmd helpers */ struct eurus_cmd_arg_info { - int pre_arg; /* command requres arg1, arg2 at POST COMMAND */ + int pre_arg; /* command requires arg1, arg2 at POST COMMAND */ int post_arg; /* command requires arg1, arg2 at GET_RESULT */ }; diff --git a/drivers/staging/vt6655/rxtx.c b/drivers/staging/vt6655/rxtx.c index ed3070edcac..4fcc4351e73 100644 --- a/drivers/staging/vt6655/rxtx.c +++ b/drivers/staging/vt6655/rxtx.c @@ -25,19 +25,19 @@ * Date: May 20, 2003 * * Functions: - * s_vGenerateTxParameter - Generate tx dma requried parameter. + * s_vGenerateTxParameter - Generate tx dma required parameter. * vGenerateMACHeader - Translate 802.3 to 802.11 header - * cbGetFragCount - Caculate fragement number count + * cbGetFragCount - Caculate fragment number count * csBeacon_xmit - beacon tx function * csMgmt_xmit - management tx function * s_cbFillTxBufHead - fulfill tx dma buffer header * s_uGetDataDuration - get tx data required duration * s_uFillDataHead- fulfill tx data duration header - * s_uGetRTSCTSDuration- get rtx/cts requried duration + * s_uGetRTSCTSDuration- get rtx/cts required duration * s_uGetRTSCTSRsvTime- get rts/cts reserved time * s_uGetTxRsvTime- get frame reserved time * s_vFillCTSHead- fulfill CTS ctl header - * s_vFillFragParameter- Set fragement ctl parameter. + * s_vFillFragParameter- Set fragment ctl parameter. * s_vFillRTSHead- fulfill RTS ctl header * s_vFillTxKey- fulfill tx encrypt key * s_vSWencryption- Software encrypt header @@ -877,7 +877,7 @@ s_vFillRTSHead ( } // Note: So far RTSHead dosen't appear in ATIM & Beacom DMA, so we don't need to take them into account. - // Otherwise, we need to modified codes for them. + // Otherwise, we need to modify codes for them. if (byPktType == PK_TYPE_11GB || byPktType == PK_TYPE_11GA) { if (byFBOption == AUTO_FB_NONE) { PSRTS_g pBuf = (PSRTS_g)pvRTS; @@ -1133,7 +1133,7 @@ s_vFillCTSHead ( * * Parameters: * In: - * pDevice - Pointer to adpater + * pDevice - Pointer to adapter * pTxDataHead - Transmit Data Buffer * pTxBufHead - pTxBufHead * pvRrvTime - pvRrvTime @@ -2252,7 +2252,7 @@ vGenerateFIFOHeader ( * * Parameters: * In: - * pDevice - Pointer to adpater + * pDevice - Pointer to adapter * dwTxBufferAddr - Transmit Buffer * pPacket - Packet from upper layer * cbPacketSize - Transmit Data Length diff --git a/drivers/staging/vt6656/rxtx.c b/drivers/staging/vt6656/rxtx.c index d9fa36c9523..a2ce6fad8ee 100644 --- a/drivers/staging/vt6656/rxtx.c +++ b/drivers/staging/vt6656/rxtx.c @@ -25,17 +25,17 @@ * Date: May 20, 2003 * * Functions: - * s_vGenerateTxParameter - Generate tx dma requried parameter. + * s_vGenerateTxParameter - Generate tx dma required parameter. * s_vGenerateMACHeader - Translate 802.3 to 802.11 header * csBeacon_xmit - beacon tx function * csMgmt_xmit - management tx function * s_uGetDataDuration - get tx data required duration * s_uFillDataHead- fulfill tx data duration header - * s_uGetRTSCTSDuration- get rtx/cts requried duration + * s_uGetRTSCTSDuration- get rtx/cts required duration * s_uGetRTSCTSRsvTime- get rts/cts reserved time * s_uGetTxRsvTime- get frame reserved time * s_vFillCTSHead- fulfill CTS ctl header - * s_vFillFragParameter- Set fragement ctl parameter. + * s_vFillFragParameter- Set fragment ctl parameter. * s_vFillRTSHead- fulfill RTS ctl header * s_vFillTxKey- fulfill tx encrypt key * s_vSWencryption- Software encrypt header diff --git a/drivers/usb/wusbcore/wa-xfer.c b/drivers/usb/wusbcore/wa-xfer.c index 489b47833e2..3aad333ae9c 100644 --- a/drivers/usb/wusbcore/wa-xfer.c +++ b/drivers/usb/wusbcore/wa-xfer.c @@ -76,7 +76,7 @@ * xfers-per-ripe, blocks-per-rpipe, rpipes-per-host), at the end * we are going to have to rebuild all this based on an scheduler, * to where we have a list of transactions to do and based on the - * availability of the different requried components (blocks, + * availability of the different required components (blocks, * rpipes, segment slots, etc), we go scheduling them. Painful. */ #include diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 8582e12e4a6..b1373abe248 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -22,7 +22,7 @@ * overflow. * Carlos Picoto : PIMv1 Support * Pavlin Ivanov Radoslavov: PIMv2 Registers must checksum only PIM header - * Relax this requrement to work with older peers. + * Relax this requirement to work with older peers. * */ diff --git a/scripts/package/mkspec b/scripts/package/mkspec index 47bdd2f99b7..fa27f3dac76 100755 --- a/scripts/package/mkspec +++ b/scripts/package/mkspec @@ -1,6 +1,6 @@ #!/bin/sh # -# Output a simple RPM spec file that uses no fancy features requring +# Output a simple RPM spec file that uses no fancy features requiring # RPM v4. This is intended to work with any RPM distro. # # The only gothic bit here is redefining install_post to avoid -- cgit v1.2.3-70-g09d2 From edc7616c307ad315159a8aa050142237f524e079 Mon Sep 17 00:00:00 2001 From: Sjur Braendeland Date: Tue, 30 Mar 2010 13:56:29 +0000 Subject: net-caif: add CAIF documentation Documentation of the CAIF Protocol. Signed-off-by: Sjur Braendeland Signed-off-by: David S. Miller --- Documentation/networking/caif/Linux-CAIF.txt | 212 +++++++++++++++++++++++++++ Documentation/networking/caif/README | 109 ++++++++++++++ 2 files changed, 321 insertions(+) create mode 100644 Documentation/networking/caif/Linux-CAIF.txt create mode 100644 Documentation/networking/caif/README (limited to 'Documentation') diff --git a/Documentation/networking/caif/Linux-CAIF.txt b/Documentation/networking/caif/Linux-CAIF.txt new file mode 100644 index 00000000000..7fe7a9a33a4 --- /dev/null +++ b/Documentation/networking/caif/Linux-CAIF.txt @@ -0,0 +1,212 @@ +Linux CAIF +=========== +copyright (C) ST-Ericsson AB 2010 +Author: Sjur Brendeland/ sjur.brandeland@stericsson.com +License terms: GNU General Public License (GPL) version 2 + + +Introduction +------------ +CAIF is a MUX protocol used by ST-Ericsson cellular modems for +communication between Modem and host. The host processes can open virtual AT +channels, initiate GPRS Data connections, Video channels and Utility Channels. +The Utility Channels are general purpose pipes between modem and host. + +ST-Ericsson modems support a number of transports between modem +and host. Currently, UART and Loopback are available for Linux. + + +Architecture: +------------ +The implementation of CAIF is divided into: +* CAIF Socket Layer, Kernel API, and Net Device. +* CAIF Core Protocol Implementation +* CAIF Link Layer, implemented as NET devices. + + + RTNL + ! + ! +------+ +------+ +------+ + ! +------+! +------+! +------+! + ! ! Sock !! !Kernel!! ! Net !! + ! ! API !+ ! API !+ ! Dev !+ <- CAIF Client APIs + ! +------+ +------! +------+ + ! ! ! ! + ! +----------!----------+ + ! +------+ <- CAIF Protocol Implementation + +-------> ! CAIF ! + ! Core ! + +------+ + +--------!--------+ + ! ! + +------+ +-----+ + ! ! ! TTY ! <- Link Layer (Net Devices) + +------+ +-----+ + + +Using the Kernel API +---------------------- +The Kernel API is used for accessing CAIF channels from the +kernel. +The user of the API has to implement two callbacks for receive +and control. +The receive callback gives a CAIF packet as a SKB. The control +callback will +notify of channel initialization complete, and flow-on/flow- +off. + + + struct caif_device caif_dev = { + .caif_config = { + .name = "MYDEV" + .type = CAIF_CHTY_AT + } + .receive_cb = my_receive, + .control_cb = my_control, + }; + caif_add_device(&caif_dev); + caif_transmit(&caif_dev, skb); + +See the caif_kernel.h for details about the CAIF kernel API. + + +I M P L E M E N T A T I O N +=========================== +=========================== + +CAIF Core Protocol Layer +========================================= + +CAIF Core layer implements the CAIF protocol as defined by ST-Ericsson. +It implements the CAIF protocol stack in a layered approach, where +each layer described in the specification is implemented as a separate layer. +The architecture is inspired by the design patterns "Protocol Layer" and +"Protocol Packet". + +== CAIF structure == +The Core CAIF implementation contains: + - Simple implementation of CAIF. + - Layered architecture (a la Streams), each layer in the CAIF + specification is implemented in a separate c-file. + - Clients must implement PHY layer to access physical HW + with receive and transmit functions. + - Clients must call configuration function to add PHY layer. + - Clients must implement CAIF layer to consume/produce + CAIF payload with receive and transmit functions. + - Clients must call configuration function to add and connect the + Client layer. + - When receiving / transmitting CAIF Packets (cfpkt), ownership is passed + to the called function (except for framing layers' receive functions + or if a transmit function returns an error, in which case the caller + must free the packet). + +Layered Architecture +-------------------- +The CAIF protocol can be divided into two parts: Support functions and Protocol +Implementation. The support functions include: + + - CFPKT CAIF Packet. Implementation of CAIF Protocol Packet. The + CAIF Packet has functions for creating, destroying and adding content + and for adding/extracting header and trailers to protocol packets. + + - CFLST CAIF list implementation. + + - CFGLUE CAIF Glue. Contains OS Specifics, such as memory + allocation, endianness, etc. + +The CAIF Protocol implementation contains: + + - CFCNFG CAIF Configuration layer. Configures the CAIF Protocol + Stack and provides a Client interface for adding Link-Layer and + Driver interfaces on top of the CAIF Stack. + + - CFCTRL CAIF Control layer. Encodes and Decodes control messages + such as enumeration and channel setup. Also matches request and + response messages. + + - CFSERVL General CAIF Service Layer functionality; handles flow + control and remote shutdown requests. + + - CFVEI CAIF VEI layer. Handles CAIF AT Channels on VEI (Virtual + External Interface). This layer encodes/decodes VEI frames. + + - CFDGML CAIF Datagram layer. Handles CAIF Datagram layer (IP + traffic), encodes/decodes Datagram frames. + + - CFMUX CAIF Mux layer. Handles multiplexing between multiple + physical bearers and multiple channels such as VEI, Datagram, etc. + The MUX keeps track of the existing CAIF Channels and + Physical Instances and selects the apropriate instance based + on Channel-Id and Physical-ID. + + - CFFRML CAIF Framing layer. Handles Framing i.e. Frame length + and frame checksum. + + - CFSERL CAIF Serial layer. Handles concatenation/split of frames + into CAIF Frames with correct length. + + + + +---------+ + | Config | + | CFCNFG | + +---------+ + ! + +---------+ +---------+ +---------+ + | AT | | Control | | Datagram| + | CFVEIL | | CFCTRL | | CFDGML | + +---------+ +---------+ +---------+ + \_____________!______________/ + ! + +---------+ + | MUX | + | | + +---------+ + _____!_____ + / \ + +---------+ +---------+ + | CFFRML | | CFFRML | + | Framing | | Framing | + +---------+ +---------+ + ! ! + +---------+ +---------+ + | | | Serial | + | | | CFSERL | + +---------+ +---------+ + + +In this layered approach the following "rules" apply. + - All layers embed the same structure "struct cflayer" + - A layer does not depend on any other layer's private data. + - Layers are stacked by setting the pointers + layer->up , layer->dn + - In order to send data upwards, each layer should do + layer->up->receive(layer->up, packet); + - In order to send data downwards, each layer should do + layer->dn->transmit(layer->dn, packet); + + +Linux Driver Implementation +=========================== + +Linux GPRS Net Device and CAIF socket are implemented on top of the +CAIF Core protocol. The Net device and CAIF socket have an instance of +'struct cflayer', just like the CAIF Core protocol stack. +Net device and Socket implement the 'receive()' function defined by +'struct cflayer', just like the rest of the CAIF stack. In this way, transmit and +receive of packets is handled as by the rest of the layers: the 'dn->transmit()' +function is called in order to transmit data. + +The layer on top of the CAIF Core implementation is +sometimes referred to as the "Client layer". + + +Configuration of Link Layer +--------------------------- +The Link Layer is implemented as Linux net devices (struct net_device). +Payload handling and registration is done using standard Linux mechanisms. + +The CAIF Protocol relies on a loss-less link layer without implementing +retransmission. This implies that packet drops must not happen. +Therefore a flow-control mechanism is implemented where the physical +interface can initiate flow stop for all CAIF Channels. diff --git a/Documentation/networking/caif/README b/Documentation/networking/caif/README new file mode 100644 index 00000000000..757ccfaa138 --- /dev/null +++ b/Documentation/networking/caif/README @@ -0,0 +1,109 @@ +Copyright (C) ST-Ericsson AB 2010 +Author: Sjur Brendeland/ sjur.brandeland@stericsson.com +License terms: GNU General Public License (GPL) version 2 +--------------------------------------------------------- + +=== Start === +If you have compiled CAIF for modules do: + +$modprobe crc_ccitt +$modprobe caif +$modprobe caif_socket +$modprobe chnl_net + + +=== Preparing the setup with a STE modem === + +If you are working on integration of CAIF you should make sure +that the kernel is built with module support. + +There are some things that need to be tweaked to get the host TTY correctly +set up to talk to the modem. +Since the CAIF stack is running in the kernel and we want to use the existing +TTY, we are installing our physical serial driver as a line discipline above +the TTY device. + +To achieve this we need to install the N_CAIF ldisc from user space. +The benefit is that we can hook up to any TTY. + +The use of Start-of-frame-extension (STX) must also be set as +module parameter "ser_use_stx". + +Normally Frame Checksum is always used on UART, but this is also provided as a +module parameter "ser_use_fcs". + +$ modprobe caif_serial ser_ttyname=/dev/ttyS0 ser_use_stx=yes +$ ifconfig caif_ttyS0 up + +PLEASE NOTE: There is a limitation in Android shell. + It only accepts one argument to insmod/modprobe! + +=== Trouble shooting === + +There are debugfs parameters provided for serial communication. +/sys/kernel/debug/caif_serial// + +* ser_state: Prints the bit-mask status where + - 0x02 means SENDING, this is a transient state. + - 0x10 means FLOW_OFF_SENT, i.e. the previous frame has not been sent + and is blocking further send operation. Flow OFF has been propagated + to all CAIF Channels using this TTY. + +* tty_status: Prints the bit-mask tty status information + - 0x01 - tty->warned is on. + - 0x02 - tty->low_latency is on. + - 0x04 - tty->packed is on. + - 0x08 - tty->flow_stopped is on. + - 0x10 - tty->hw_stopped is on. + - 0x20 - tty->stopped is on. + +* last_tx_msg: Binary blob Prints the last transmitted frame. + This can be printed with + $od --format=x1 /sys/kernel/debug/caif_serial//last_rx_msg. + The first two tx messages sent look like this. Note: The initial + byte 02 is start of frame extension (STX) used for re-syncing + upon errors. + + - Enumeration: + 0000000 02 05 00 00 03 01 d2 02 + | | | | | | + STX(1) | | | | + Length(2)| | | + Control Channel(1) + Command:Enumeration(1) + Link-ID(1) + Checksum(2) + - Channel Setup: + 0000000 02 07 00 00 00 21 a1 00 48 df + | | | | | | | | + STX(1) | | | | | | + Length(2)| | | | | + Control Channel(1) + Command:Channel Setup(1) + Channel Type(1) + Priority and Link-ID(1) + Endpoint(1) + Checksum(2) + +* last_rx_msg: Prints the last transmitted frame. + The RX messages for LinkSetup look almost identical but they have the + bit 0x20 set in the command bit, and Channel Setup has added one byte + before Checksum containing Channel ID. + NOTE: Several CAIF Messages might be concatenated. The maximum debug + buffer size is 128 bytes. + +== Error Scenarios: +- last_tx_msg contains channel setup message and last_rx_msg is empty -> + The host seems to be able to send over the UART, at least the CAIF ldisc get + notified that sending is completed. + +- last_tx_msg contains enumeration message and last_rx_msg is empty -> + The host is not able to send the message from UART, the tty has not been + able to complete the transmit operation. + +- if /sys/kernel/debug/caif_serial//tty_status is non-zero there + might be problems transmitting over UART. + E.g. host and modem wiring is not correct you will typically see + tty_status = 0x10 (hw_stopped) and ser_state = 0x10 (FLOW_OFF_SENT). + You will probably see the enumeration message in last_tx_message + and empty last_rx_message. -- cgit v1.2.3-70-g09d2 From 236db47c2b3b69464d50c695ab2ddd516cf64520 Mon Sep 17 00:00:00 2001 From: Bruno Prémont Date: Tue, 30 Mar 2010 22:33:50 +0200 Subject: HID: new driver for PicoLCD device MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add basic driver for PicoLCD graphics device. Initially support keypad with input device and provide support for debugging communication via events file from debugfs. Signed-off-by: Bruno Prémont Signed-off-by: Jiri Kosina --- Documentation/ABI/testing/sysfs-driver-hid-picolcd | 17 + drivers/hid/Kconfig | 18 + drivers/hid/Makefile | 1 + drivers/hid/hid-core.c | 2 + drivers/hid/hid-ids.h | 2 + drivers/hid/hid-picolcd.c | 1183 ++++++++++++++++++++ 6 files changed, 1223 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-driver-hid-picolcd create mode 100644 drivers/hid/hid-picolcd.c (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-driver-hid-picolcd b/Documentation/ABI/testing/sysfs-driver-hid-picolcd new file mode 100644 index 00000000000..6fb4f21469f --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-hid-picolcd @@ -0,0 +1,17 @@ +What: /sys/bus/usb/devices/-:./::./operation_mode +Date: March 2010 +Contact: Bruno Prémont +Description: Make it possible to switch the PicoLCD device between LCD + (firmware) and bootloader (flasher) operation modes. + + Reading: returns list of available modes, the active mode being + enclosed in brackets ('[' and ']') + + Writing: causes operation mode switch. Permitted values are + the non-active mode names listed when read, optionally followed + by a delay value expressed in ms. + + Note: when switching mode the current PicoLCD HID device gets + disconnected and reconnects after above delay (default value + is 5 seconds though this default should not be relied on). + diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 71d4c070362..138ba6a277e 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -262,6 +262,24 @@ config HID_PETALYNX ---help--- Support for Petalynx Maxter remote control. +config HID_PICOLCD + tristate "PicoLCD (graphic version)" + depends on USB_HID + ---help--- + This provides support for Minibox PicoLCD devices, currently + only the graphical ones are supported. + + This includes support for the following device features: + - Keypad + - Switching between Firmware and Flash mode + Features that are not (yet) supported: + - Framebuffer for monochrome 256x64 display + - Backlight control + - Contrast control + - IR + - General purpose outputs + - EEProm / Flash access + config HID_QUANTA tristate "Quanta Optical Touch" depends on USB_HID diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile index 0b2618f092c..7fd1614e7e2 100644 --- a/drivers/hid/Makefile +++ b/drivers/hid/Makefile @@ -44,6 +44,7 @@ obj-$(CONFIG_HID_ORTEK) += hid-ortek.o obj-$(CONFIG_HID_QUANTA) += hid-quanta.o obj-$(CONFIG_HID_PANTHERLORD) += hid-pl.o obj-$(CONFIG_HID_PETALYNX) += hid-petalynx.o +obj-$(CONFIG_HID_PICOLCD) += hid-picolcd.o obj-$(CONFIG_HID_SAMSUNG) += hid-samsung.o obj-$(CONFIG_HID_SMARTJOYPLUS) += hid-sjoy.o obj-$(CONFIG_HID_SONY) += hid-sony.o diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 2e2aa759d23..bb11fb460d5 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1335,6 +1335,8 @@ static const struct hid_device_id hid_blacklist[] = { { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2) }, { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER) }, { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR) }, + { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) }, + { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV) }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K) }, { HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K) }, diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 797e0647035..783b41d8592 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -341,6 +341,8 @@ #define USB_VENDOR_ID_MICROCHIP 0x04d8 #define USB_DEVICE_ID_PICKIT1 0x0032 #define USB_DEVICE_ID_PICKIT2 0x0033 +#define USB_DEVICE_ID_PICOLCD 0xc002 +#define USB_DEVICE_ID_PICOLCD_BOOTLOADER 0xf002 #define USB_VENDOR_ID_MICROSOFT 0x045e #define USB_DEVICE_ID_SIDEWINDER_GV 0x003b diff --git a/drivers/hid/hid-picolcd.c b/drivers/hid/hid-picolcd.c new file mode 100644 index 00000000000..c7855f38889 --- /dev/null +++ b/drivers/hid/hid-picolcd.c @@ -0,0 +1,1183 @@ +/*************************************************************************** + * Copyright (C) 2010 by Bruno Prémont * + * * + * Based on Logitech G13 driver (v0.4) * + * Copyright (C) 2009 by Rick L. Vinyard, Jr. * + * * + * This program is free software: you can redistribute it and/or modify * + * it under the terms of the GNU General Public License as published by * + * the Free Software Foundation, version 2 of the License. * + * * + * This driver is distributed in the hope that it will be useful, but * + * WITHOUT ANY WARRANTY; without even the implied warranty of * + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * + * General Public License for more details. * + * * + * You should have received a copy of the GNU General Public License * + * along with this software. If not see . * + ***************************************************************************/ + +#include +#include +#include +#include "hid-ids.h" +#include "usbhid/usbhid.h" +#include + +#include +#include + +#include + +#define PICOLCD_NAME "PicoLCD (graphic)" + +/* Report numbers */ +#define REPORT_ERROR_CODE 0x10 /* LCD: IN[16] */ +#define ERR_SUCCESS 0x00 +#define ERR_PARAMETER_MISSING 0x01 +#define ERR_DATA_MISSING 0x02 +#define ERR_BLOCK_READ_ONLY 0x03 +#define ERR_BLOCK_NOT_ERASABLE 0x04 +#define ERR_BLOCK_TOO_BIG 0x05 +#define ERR_SECTION_OVERFLOW 0x06 +#define ERR_INVALID_CMD_LEN 0x07 +#define ERR_INVALID_DATA_LEN 0x08 +#define REPORT_KEY_STATE 0x11 /* LCD: IN[2] */ +#define REPORT_IR_DATA 0x21 /* LCD: IN[63] */ +#define REPORT_EE_DATA 0x32 /* LCD: IN[63] */ +#define REPORT_MEMORY 0x41 /* LCD: IN[63] */ +#define REPORT_LED_STATE 0x81 /* LCD: OUT[1] */ +#define REPORT_BRIGHTNESS 0x91 /* LCD: OUT[1] */ +#define REPORT_CONTRAST 0x92 /* LCD: OUT[1] */ +#define REPORT_RESET 0x93 /* LCD: OUT[2] */ +#define REPORT_LCD_CMD 0x94 /* LCD: OUT[63] */ +#define REPORT_LCD_DATA 0x95 /* LCD: OUT[63] */ +#define REPORT_LCD_CMD_DATA 0x96 /* LCD: OUT[63] */ +#define REPORT_EE_READ 0xa3 /* LCD: OUT[63] */ +#define REPORT_EE_WRITE 0xa4 /* LCD: OUT[63] */ +#define REPORT_ERASE_MEMORY 0xb2 /* LCD: OUT[2] */ +#define REPORT_READ_MEMORY 0xb3 /* LCD: OUT[3] */ +#define REPORT_WRITE_MEMORY 0xb4 /* LCD: OUT[63] */ +#define REPORT_SPLASH_RESTART 0xc1 /* LCD: OUT[1] */ +#define REPORT_EXIT_KEYBOARD 0xef /* LCD: OUT[2] */ +#define REPORT_VERSION 0xf1 /* LCD: IN[2],OUT[1] Bootloader: IN[2],OUT[1] */ +#define REPORT_BL_ERASE_MEMORY 0xf2 /* Bootloader: IN[36],OUT[4] */ +#define REPORT_BL_READ_MEMORY 0xf3 /* Bootloader: IN[36],OUT[4] */ +#define REPORT_BL_WRITE_MEMORY 0xf4 /* Bootloader: IN[36],OUT[36] */ +#define REPORT_DEVID 0xf5 /* LCD: IN[5], OUT[1] Bootloader: IN[5],OUT[1] */ +#define REPORT_SPLASH_SIZE 0xf6 /* LCD: IN[4], OUT[1] */ +#define REPORT_HOOK_VERSION 0xf7 /* LCD: IN[2], OUT[1] */ +#define REPORT_EXIT_FLASHER 0xff /* Bootloader: OUT[2] */ + +/* Input device + * + * The PicoLCD has an IR receiver header, a built-in keypad with 5 keys + * and header for 4x4 key matrix. The built-in keys are part of the matrix. + */ +static const unsigned short def_keymap[] = { + KEY_RESERVED, /* none */ + KEY_BACK, /* col 4 + row 1 */ + KEY_HOMEPAGE, /* col 3 + row 1 */ + KEY_RESERVED, /* col 2 + row 1 */ + KEY_RESERVED, /* col 1 + row 1 */ + KEY_SCROLLUP, /* col 4 + row 2 */ + KEY_OK, /* col 3 + row 2 */ + KEY_SCROLLDOWN, /* col 2 + row 2 */ + KEY_RESERVED, /* col 1 + row 2 */ + KEY_RESERVED, /* col 4 + row 3 */ + KEY_RESERVED, /* col 3 + row 3 */ + KEY_RESERVED, /* col 2 + row 3 */ + KEY_RESERVED, /* col 1 + row 3 */ + KEY_RESERVED, /* col 4 + row 4 */ + KEY_RESERVED, /* col 3 + row 4 */ + KEY_RESERVED, /* col 2 + row 4 */ + KEY_RESERVED, /* col 1 + row 4 */ +}; +#define PICOLCD_KEYS ARRAY_SIZE(def_keymap) + +/* Description of in-progress IO operation, used for operations + * that trigger response from device */ +struct picolcd_pending { + struct hid_report *out_report; + struct hid_report *in_report; + struct completion ready; + int raw_size; + u8 raw_data[64]; +}; + +/* Per device data structure */ +struct picolcd_data { + struct hid_device *hdev; +#ifdef CONFIG_DEBUG_FS + int addr_sz; +#endif + u8 version[2]; + /* input stuff */ + u8 pressed_keys[2]; + struct input_dev *input_keys; + struct input_dev *input_cir; + unsigned short keycode[PICOLCD_KEYS]; + + /* Housekeeping stuff */ + spinlock_t lock; + struct mutex mutex; + struct picolcd_pending *pending; + int status; +#define PICOLCD_BOOTLOADER 1 +#define PICOLCD_FAILED 2 +}; + + +/* Find a given report */ +#define picolcd_in_report(id, dev) picolcd_report(id, dev, HID_INPUT_REPORT) +#define picolcd_out_report(id, dev) picolcd_report(id, dev, HID_OUTPUT_REPORT) + +static struct hid_report *picolcd_report(int id, struct hid_device *hdev, int dir) +{ + struct list_head *feature_report_list = &hdev->report_enum[dir].report_list; + struct hid_report *report = NULL; + + list_for_each_entry(report, feature_report_list, list) { + if (report->id == id) + return report; + } + dev_warn(&hdev->dev, "No report with id 0x%x found\n", id); + return NULL; +} + +#ifdef CONFIG_DEBUG_FS +static void picolcd_debug_out_report(struct picolcd_data *data, + struct hid_device *hdev, struct hid_report *report); +#define usbhid_submit_report(a, b, c) \ + do { \ + picolcd_debug_out_report(hid_get_drvdata(a), a, b); \ + usbhid_submit_report(a, b, c); \ + } while (0) +#endif + +/* Submit a report and wait for a reply from device - if device fades away + * or does not respond in time, return NULL */ +static struct picolcd_pending *picolcd_send_and_wait(struct hid_device *hdev, + int report_id, const u8 *raw_data, int size) +{ + struct picolcd_data *data = hid_get_drvdata(hdev); + struct picolcd_pending *work; + struct hid_report *report = picolcd_out_report(report_id, hdev); + unsigned long flags; + int i, j, k; + + if (!report || !data) + return NULL; + if (data->status & PICOLCD_FAILED) + return NULL; + work = kzalloc(sizeof(*work), GFP_KERNEL); + if (!work) + return NULL; + + init_completion(&work->ready); + work->out_report = report; + work->in_report = NULL; + work->raw_size = 0; + + mutex_lock(&data->mutex); + spin_lock_irqsave(&data->lock, flags); + for (i = k = 0; i < report->maxfield; i++) + for (j = 0; j < report->field[i]->report_count; j++) { + hid_set_field(report->field[i], j, k < size ? raw_data[k] : 0); + k++; + } + data->pending = work; + usbhid_submit_report(data->hdev, report, USB_DIR_OUT); + spin_unlock_irqrestore(&data->lock, flags); + wait_for_completion_interruptible_timeout(&work->ready, HZ*2); + spin_lock_irqsave(&data->lock, flags); + data->pending = NULL; + spin_unlock_irqrestore(&data->lock, flags); + mutex_unlock(&data->mutex); + return work; +} + +/* + * input class device + */ +static int picolcd_raw_keypad(struct picolcd_data *data, + struct hid_report *report, u8 *raw_data, int size) +{ + /* + * Keypad event + * First and second data bytes list currently pressed keys, + * 0x00 means no key and at most 2 keys may be pressed at same time + */ + int i, j; + + /* determine newly pressed keys */ + for (i = 0; i < size; i++) { + unsigned int key_code; + if (raw_data[i] == 0) + continue; + for (j = 0; j < sizeof(data->pressed_keys); j++) + if (data->pressed_keys[j] == raw_data[i]) + goto key_already_down; + for (j = 0; j < sizeof(data->pressed_keys); j++) + if (data->pressed_keys[j] == 0) { + data->pressed_keys[j] = raw_data[i]; + break; + } + input_event(data->input_keys, EV_MSC, MSC_SCAN, raw_data[i]); + if (raw_data[i] < PICOLCD_KEYS) + key_code = data->keycode[raw_data[i]]; + else + key_code = KEY_UNKNOWN; + if (key_code != KEY_UNKNOWN) { + dbg_hid(PICOLCD_NAME " got key press for %u:%d", + raw_data[i], key_code); + input_report_key(data->input_keys, key_code, 1); + } + input_sync(data->input_keys); +key_already_down: + continue; + } + + /* determine newly released keys */ + for (j = 0; j < sizeof(data->pressed_keys); j++) { + unsigned int key_code; + if (data->pressed_keys[j] == 0) + continue; + for (i = 0; i < size; i++) + if (data->pressed_keys[j] == raw_data[i]) + goto key_still_down; + input_event(data->input_keys, EV_MSC, MSC_SCAN, data->pressed_keys[j]); + if (data->pressed_keys[j] < PICOLCD_KEYS) + key_code = data->keycode[data->pressed_keys[j]]; + else + key_code = KEY_UNKNOWN; + if (key_code != KEY_UNKNOWN) { + dbg_hid(PICOLCD_NAME " got key release for %u:%d", + data->pressed_keys[j], key_code); + input_report_key(data->input_keys, key_code, 0); + } + input_sync(data->input_keys); + data->pressed_keys[j] = 0; +key_still_down: + continue; + } + return 1; +} + +static int picolcd_raw_cir(struct picolcd_data *data, + struct hid_report *report, u8 *raw_data, int size) +{ + /* Need understanding of CIR data format to implement ... */ + return 1; +} + +static int picolcd_check_version(struct hid_device *hdev) +{ + struct picolcd_data *data = hid_get_drvdata(hdev); + struct picolcd_pending *verinfo; + int ret = 0; + + if (!data) + return -ENODEV; + + verinfo = picolcd_send_and_wait(hdev, REPORT_VERSION, NULL, 0); + if (!verinfo) { + dev_err(&hdev->dev, "no version response from PicoLCD"); + return -ENODEV; + } + + if (verinfo->raw_size == 2) { + if (data->status & PICOLCD_BOOTLOADER) { + dev_info(&hdev->dev, "PicoLCD, bootloader version %d.%d\n", + verinfo->raw_data[0], verinfo->raw_data[1]); + data->version[0] = verinfo->raw_data[0]; + data->version[1] = verinfo->raw_data[1]; + } else { + dev_info(&hdev->dev, "PicoLCD, firmware version %d.%d\n", + verinfo->raw_data[1], verinfo->raw_data[0]); + data->version[0] = verinfo->raw_data[1]; + data->version[1] = verinfo->raw_data[0]; + } + } else { + dev_err(&hdev->dev, "confused, got unexpected version response from PicoLCD\n"); + ret = -EINVAL; + } + kfree(verinfo); + return ret; +} + +/* + * Reset our device and wait for answer to VERSION request + */ +static int picolcd_reset(struct hid_device *hdev) +{ + struct picolcd_data *data = hid_get_drvdata(hdev); + struct hid_report *report = picolcd_out_report(REPORT_RESET, hdev); + unsigned long flags; + + if (!data || !report || report->maxfield != 1) + return -ENODEV; + + spin_lock_irqsave(&data->lock, flags); + if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER) + data->status |= PICOLCD_BOOTLOADER; + + /* perform the reset */ + hid_set_field(report->field[0], 0, 1); + usbhid_submit_report(hdev, report, USB_DIR_OUT); + spin_unlock_irqrestore(&data->lock, flags); + + return picolcd_check_version(hdev); +} + +/* + * The "operation_mode" sysfs attribute + */ +static ssize_t picolcd_operation_mode_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct picolcd_data *data = dev_get_drvdata(dev); + + if (data->status & PICOLCD_BOOTLOADER) + return snprintf(buf, PAGE_SIZE, "[bootloader] lcd\n"); + else + return snprintf(buf, PAGE_SIZE, "bootloader [lcd]\n"); +} + +static ssize_t picolcd_operation_mode_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct picolcd_data *data = dev_get_drvdata(dev); + struct hid_report *report = NULL; + size_t cnt = count; + int timeout = 5000; + unsigned u; + unsigned long flags; + + if (cnt >= 3 && strncmp("lcd", buf, 3) == 0) { + if (data->status & PICOLCD_BOOTLOADER) + report = picolcd_out_report(REPORT_EXIT_FLASHER, data->hdev); + buf += 3; + cnt -= 3; + } else if (cnt >= 10 && strncmp("bootloader", buf, 10) == 0) { + if (!(data->status & PICOLCD_BOOTLOADER)) + report = picolcd_out_report(REPORT_EXIT_KEYBOARD, data->hdev); + buf += 10; + cnt -= 10; + } + if (!report) + return -EINVAL; + + while (cnt > 0 && (*buf == ' ' || *buf == '\t')) { + buf++; + cnt--; + } + while (cnt > 0 && (buf[cnt-1] == '\n' || buf[cnt-1] == '\r')) + cnt--; + if (cnt > 0) { + if (sscanf(buf, "%u", &u) != 1) + return -EINVAL; + if (u > 30000) + return -EINVAL; + else + timeout = u; + } + + spin_lock_irqsave(&data->lock, flags); + hid_set_field(report->field[0], 0, timeout & 0xff); + hid_set_field(report->field[0], 1, (timeout >> 8) & 0xff); + usbhid_submit_report(data->hdev, report, USB_DIR_OUT); + spin_unlock_irqrestore(&data->lock, flags); + return count; +} + +static DEVICE_ATTR(operation_mode, 0644, picolcd_operation_mode_show, + picolcd_operation_mode_store); + + +#ifdef CONFIG_DEBUG_FS +/* + * Helper code for HID report level dumping/debugging + */ +static const char *error_codes[] = { + "success", "parameter missing", "data_missing", "block readonly", + "block not erasable", "block too big", "section overflow", + "invalid command length", "invalid data length", +}; + +static void dump_buff_as_hex(char *dst, size_t dst_sz, const u8 *data, + const size_t data_len) +{ + int i, j; + for (i = j = 0; i < data_len && j + 3 < dst_sz; i++) { + dst[j++] = hex_asc[(data[i] >> 4) & 0x0f]; + dst[j++] = hex_asc[data[i] & 0x0f]; + dst[j++] = ' '; + } + if (j < dst_sz) { + dst[j--] = '\0'; + dst[j] = '\n'; + } else + dst[j] = '\0'; +} + +static void picolcd_debug_out_report(struct picolcd_data *data, + struct hid_device *hdev, struct hid_report *report) +{ + u8 raw_data[70]; + int raw_size = (report->size >> 3) + 1; + char *buff; +#define BUFF_SZ 256 + + /* Avoid unnecessary overhead if debugfs is disabled */ + if (!hdev->debug_events) + return; + + buff = kmalloc(BUFF_SZ, GFP_ATOMIC); + if (!buff) + return; + + snprintf(buff, BUFF_SZ, "\nout report %d (size %d) = ", + report->id, raw_size); + hid_debug_event(hdev, buff); + if (raw_size + 5 > sizeof(raw_data)) { + hid_debug_event(hdev, " TOO BIG\n"); + return; + } else { + raw_data[0] = report->id; + hid_output_report(report, raw_data); + dump_buff_as_hex(buff, BUFF_SZ, raw_data, raw_size); + hid_debug_event(hdev, buff); + } + + switch (report->id) { + case REPORT_LED_STATE: + /* 1 data byte with GPO state */ + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_LED_STATE", report->id, raw_size-1); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tGPO state: 0x%02x\n", raw_data[1]); + hid_debug_event(hdev, buff); + break; + case REPORT_BRIGHTNESS: + /* 1 data byte with brightness */ + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_BRIGHTNESS", report->id, raw_size-1); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tBrightness: 0x%02x\n", raw_data[1]); + hid_debug_event(hdev, buff); + break; + case REPORT_CONTRAST: + /* 1 data byte with contrast */ + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_CONTRAST", report->id, raw_size-1); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tContrast: 0x%02x\n", raw_data[1]); + hid_debug_event(hdev, buff); + break; + case REPORT_RESET: + /* 2 data bytes with reset duration in ms */ + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_RESET", report->id, raw_size-1); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tDuration: 0x%02x%02x (%dms)\n", + raw_data[2], raw_data[1], raw_data[2] << 8 | raw_data[1]); + hid_debug_event(hdev, buff); + break; + case REPORT_LCD_CMD: + /* 63 data bytes with LCD commands */ + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_LCD_CMD", report->id, raw_size-1); + hid_debug_event(hdev, buff); + /* TODO: format decoding */ + break; + case REPORT_LCD_DATA: + /* 63 data bytes with LCD data */ + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_LCD_CMD", report->id, raw_size-1); + /* TODO: format decoding */ + hid_debug_event(hdev, buff); + break; + case REPORT_LCD_CMD_DATA: + /* 63 data bytes with LCD commands and data */ + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_LCD_CMD", report->id, raw_size-1); + /* TODO: format decoding */ + hid_debug_event(hdev, buff); + break; + case REPORT_EE_READ: + /* 3 data bytes with read area description */ + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_EE_READ", report->id, raw_size-1); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n", + raw_data[2], raw_data[1]); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]); + hid_debug_event(hdev, buff); + break; + case REPORT_EE_WRITE: + /* 3+1..20 data bytes with write area description */ + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_EE_WRITE", report->id, raw_size-1); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n", + raw_data[2], raw_data[1]); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]); + hid_debug_event(hdev, buff); + if (raw_data[3] == 0) { + snprintf(buff, BUFF_SZ, "\tNo data\n"); + } else if (raw_data[3] + 4 <= raw_size) { + snprintf(buff, BUFF_SZ, "\tData: "); + hid_debug_event(hdev, buff); + dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]); + } else { + snprintf(buff, BUFF_SZ, "\tData overflowed\n"); + } + hid_debug_event(hdev, buff); + break; + case REPORT_ERASE_MEMORY: + case REPORT_BL_ERASE_MEMORY: + /* 3 data bytes with pointer inside erase block */ + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_ERASE_MEMORY", report->id, raw_size-1); + hid_debug_event(hdev, buff); + switch (data->addr_sz) { + case 2: + snprintf(buff, BUFF_SZ, "\tAddress inside 64 byte block: 0x%02x%02x\n", + raw_data[2], raw_data[1]); + break; + case 3: + snprintf(buff, BUFF_SZ, "\tAddress inside 64 byte block: 0x%02x%02x%02x\n", + raw_data[3], raw_data[2], raw_data[1]); + break; + default: + snprintf(buff, BUFF_SZ, "\tNot supported\n"); + } + hid_debug_event(hdev, buff); + break; + case REPORT_READ_MEMORY: + case REPORT_BL_READ_MEMORY: + /* 4 data bytes with read area description */ + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_READ_MEMORY", report->id, raw_size-1); + hid_debug_event(hdev, buff); + switch (data->addr_sz) { + case 2: + snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n", + raw_data[2], raw_data[1]); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]); + break; + case 3: + snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x%02x\n", + raw_data[3], raw_data[2], raw_data[1]); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[4]); + break; + default: + snprintf(buff, BUFF_SZ, "\tNot supported\n"); + } + hid_debug_event(hdev, buff); + break; + case REPORT_WRITE_MEMORY: + case REPORT_BL_WRITE_MEMORY: + /* 4+1..32 data bytes with write adrea description */ + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_WRITE_MEMORY", report->id, raw_size-1); + hid_debug_event(hdev, buff); + switch (data->addr_sz) { + case 2: + snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n", + raw_data[2], raw_data[1]); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]); + hid_debug_event(hdev, buff); + if (raw_data[3] == 0) { + snprintf(buff, BUFF_SZ, "\tNo data\n"); + } else if (raw_data[3] + 4 <= raw_size) { + snprintf(buff, BUFF_SZ, "\tData: "); + hid_debug_event(hdev, buff); + dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]); + } else { + snprintf(buff, BUFF_SZ, "\tData overflowed\n"); + } + break; + case 3: + snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x%02x\n", + raw_data[3], raw_data[2], raw_data[1]); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[4]); + hid_debug_event(hdev, buff); + if (raw_data[4] == 0) { + snprintf(buff, BUFF_SZ, "\tNo data\n"); + } else if (raw_data[4] + 5 <= raw_size) { + snprintf(buff, BUFF_SZ, "\tData: "); + hid_debug_event(hdev, buff); + dump_buff_as_hex(buff, BUFF_SZ, raw_data+5, raw_data[4]); + } else { + snprintf(buff, BUFF_SZ, "\tData overflowed\n"); + } + break; + default: + snprintf(buff, BUFF_SZ, "\tNot supported\n"); + } + hid_debug_event(hdev, buff); + break; + case REPORT_SPLASH_RESTART: + /* TODO */ + break; + case REPORT_EXIT_KEYBOARD: + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_EXIT_KEYBOARD", report->id, raw_size-1); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tRestart delay: %dms (0x%02x%02x)\n", + raw_data[1] | (raw_data[2] << 8), + raw_data[2], raw_data[1]); + hid_debug_event(hdev, buff); + break; + case REPORT_VERSION: + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_VERSION", report->id, raw_size-1); + hid_debug_event(hdev, buff); + break; + case REPORT_DEVID: + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_DEVID", report->id, raw_size-1); + hid_debug_event(hdev, buff); + break; + case REPORT_SPLASH_SIZE: + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_SPLASH_SIZE", report->id, raw_size-1); + hid_debug_event(hdev, buff); + break; + case REPORT_HOOK_VERSION: + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_HOOK_VERSION", report->id, raw_size-1); + hid_debug_event(hdev, buff); + break; + case REPORT_EXIT_FLASHER: + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "REPORT_VERSION", report->id, raw_size-1); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tRestart delay: %dms (0x%02x%02x)\n", + raw_data[1] | (raw_data[2] << 8), + raw_data[2], raw_data[1]); + hid_debug_event(hdev, buff); + break; + default: + snprintf(buff, BUFF_SZ, "out report %s (%d, size=%d)\n", + "", report->id, raw_size-1); + hid_debug_event(hdev, buff); + break; + } + wake_up_interruptible(&hdev->debug_wait); + kfree(buff); +} + +static void picolcd_debug_raw_event(struct picolcd_data *data, + struct hid_device *hdev, struct hid_report *report, + u8 *raw_data, int size) +{ + char *buff; + +#define BUFF_SZ 256 + /* Avoid unnecessary overhead if debugfs is disabled */ + if (!hdev->debug_events) + return; + + buff = kmalloc(BUFF_SZ, GFP_ATOMIC); + if (!buff) + return; + + switch (report->id) { + case REPORT_ERROR_CODE: + /* 2 data bytes with affected report and error code */ + snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n", + "REPORT_ERROR_CODE", report->id, size-1); + hid_debug_event(hdev, buff); + if (raw_data[2] < ARRAY_SIZE(error_codes)) + snprintf(buff, BUFF_SZ, "\tError code 0x%02x (%s) in reply to report 0x%02x\n", + raw_data[2], error_codes[raw_data[2]], raw_data[1]); + else + snprintf(buff, BUFF_SZ, "\tError code 0x%02x in reply to report 0x%02x\n", + raw_data[2], raw_data[1]); + hid_debug_event(hdev, buff); + break; + case REPORT_KEY_STATE: + /* 2 data bytes with key state */ + snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n", + "REPORT_KEY_STATE", report->id, size-1); + hid_debug_event(hdev, buff); + if (raw_data[1] == 0) + snprintf(buff, BUFF_SZ, "\tNo key pressed\n"); + else if (raw_data[2] == 0) + snprintf(buff, BUFF_SZ, "\tOne key pressed: 0x%02x (%d)\n", + raw_data[1], raw_data[1]); + else + snprintf(buff, BUFF_SZ, "\tTwo keys pressed: 0x%02x (%d), 0x%02x (%d)\n", + raw_data[1], raw_data[1], raw_data[2], raw_data[2]); + hid_debug_event(hdev, buff); + break; + case REPORT_IR_DATA: + /* Up to 20 byes of IR scancode data */ + snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n", + "REPORT_IR_DATA", report->id, size-1); + hid_debug_event(hdev, buff); + if (raw_data[1] == 0) { + snprintf(buff, BUFF_SZ, "\tUnexpectedly 0 data length\n"); + hid_debug_event(hdev, buff); + } else if (raw_data[1] + 1 <= size) { + snprintf(buff, BUFF_SZ, "\tData length: %d\n\tIR Data: ", + raw_data[1]-1); + hid_debug_event(hdev, buff); + dump_buff_as_hex(buff, BUFF_SZ, raw_data+2, raw_data[1]-1); + hid_debug_event(hdev, buff); + } else { + snprintf(buff, BUFF_SZ, "\tOverflowing data length: %d\n", + raw_data[1]-1); + hid_debug_event(hdev, buff); + } + break; + case REPORT_EE_DATA: + /* Data buffer in response to REPORT_EE_READ or REPORT_EE_WRITE */ + snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n", + "REPORT_EE_DATA", report->id, size-1); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n", + raw_data[2], raw_data[1]); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]); + hid_debug_event(hdev, buff); + if (raw_data[3] == 0) { + snprintf(buff, BUFF_SZ, "\tNo data\n"); + hid_debug_event(hdev, buff); + } else if (raw_data[3] + 4 <= size) { + snprintf(buff, BUFF_SZ, "\tData: "); + hid_debug_event(hdev, buff); + dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]); + hid_debug_event(hdev, buff); + } else { + snprintf(buff, BUFF_SZ, "\tData overflowed\n"); + hid_debug_event(hdev, buff); + } + break; + case REPORT_MEMORY: + /* Data buffer in response to REPORT_READ_MEMORY or REPORT_WRTIE_MEMORY */ + snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n", + "REPORT_MEMORY", report->id, size-1); + hid_debug_event(hdev, buff); + switch (data->addr_sz) { + case 2: + snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x\n", + raw_data[2], raw_data[1]); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[3]); + hid_debug_event(hdev, buff); + if (raw_data[3] == 0) { + snprintf(buff, BUFF_SZ, "\tNo data\n"); + } else if (raw_data[3] + 4 <= size) { + snprintf(buff, BUFF_SZ, "\tData: "); + hid_debug_event(hdev, buff); + dump_buff_as_hex(buff, BUFF_SZ, raw_data+4, raw_data[3]); + } else { + snprintf(buff, BUFF_SZ, "\tData overflowed\n"); + } + break; + case 3: + snprintf(buff, BUFF_SZ, "\tData address: 0x%02x%02x%02x\n", + raw_data[3], raw_data[2], raw_data[1]); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tData length: %d\n", raw_data[4]); + hid_debug_event(hdev, buff); + if (raw_data[4] == 0) { + snprintf(buff, BUFF_SZ, "\tNo data\n"); + } else if (raw_data[4] + 5 <= size) { + snprintf(buff, BUFF_SZ, "\tData: "); + hid_debug_event(hdev, buff); + dump_buff_as_hex(buff, BUFF_SZ, raw_data+5, raw_data[4]); + } else { + snprintf(buff, BUFF_SZ, "\tData overflowed\n"); + } + break; + default: + snprintf(buff, BUFF_SZ, "\tNot supported\n"); + } + hid_debug_event(hdev, buff); + break; + case REPORT_VERSION: + snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n", + "REPORT_VERSION", report->id, size-1); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tFirmware version: %d.%d\n", + raw_data[2], raw_data[1]); + hid_debug_event(hdev, buff); + break; + case REPORT_BL_ERASE_MEMORY: + snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n", + "REPORT_BL_ERASE_MEMORY", report->id, size-1); + hid_debug_event(hdev, buff); + /* TODO */ + break; + case REPORT_BL_READ_MEMORY: + snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n", + "REPORT_BL_READ_MEMORY", report->id, size-1); + hid_debug_event(hdev, buff); + /* TODO */ + break; + case REPORT_BL_WRITE_MEMORY: + snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n", + "REPORT_BL_WRITE_MEMORY", report->id, size-1); + hid_debug_event(hdev, buff); + /* TODO */ + break; + case REPORT_DEVID: + snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n", + "REPORT_DEVID", report->id, size-1); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tSerial: 0x%02x%02x%02x%02x\n", + raw_data[1], raw_data[2], raw_data[3], raw_data[4]); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tType: 0x%02x\n", + raw_data[5]); + hid_debug_event(hdev, buff); + break; + case REPORT_SPLASH_SIZE: + snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n", + "REPORT_SPLASH_SIZE", report->id, size-1); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tTotal splash space: %d\n", + (raw_data[2] << 8) | raw_data[1]); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tUsed splash space: %d\n", + (raw_data[4] << 8) | raw_data[3]); + hid_debug_event(hdev, buff); + break; + case REPORT_HOOK_VERSION: + snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n", + "REPORT_HOOK_VERSION", report->id, size-1); + hid_debug_event(hdev, buff); + snprintf(buff, BUFF_SZ, "\tFirmware version: %d.%d\n", + raw_data[1], raw_data[2]); + hid_debug_event(hdev, buff); + break; + default: + snprintf(buff, BUFF_SZ, "report %s (%d, size=%d)\n", + "", report->id, size-1); + hid_debug_event(hdev, buff); + break; + } + wake_up_interruptible(&hdev->debug_wait); + kfree(buff); +} +#else +#define picolcd_debug_raw_event(data, hdev, report, raw_data, size) +#endif + +/* + * Handle raw report as sent by device + */ +static int picolcd_raw_event(struct hid_device *hdev, + struct hid_report *report, u8 *raw_data, int size) +{ + struct picolcd_data *data = hid_get_drvdata(hdev); + unsigned long flags; + int ret = 0; + + if (!data) + return 1; + + if (report->id == REPORT_KEY_STATE) { + if (data->input_keys) + ret = picolcd_raw_keypad(data, report, raw_data+1, size-1); + } else if (report->id == REPORT_IR_DATA) { + if (data->input_cir) + ret = picolcd_raw_cir(data, report, raw_data+1, size-1); + } else { + spin_lock_irqsave(&data->lock, flags); + /* + * We let the caller of picolcd_send_and_wait() check if the + * report we got is one of the expected ones or not. + */ + if (data->pending) { + memcpy(data->pending->raw_data, raw_data+1, size-1); + data->pending->raw_size = size-1; + data->pending->in_report = report; + complete(&data->pending->ready); + } + spin_unlock_irqrestore(&data->lock, flags); + } + + picolcd_debug_raw_event(data, hdev, report, raw_data, size); + return 1; +} + +/* initialize keypad input device */ +static int picolcd_init_keys(struct picolcd_data *data, + struct hid_report *report) +{ + struct hid_device *hdev = data->hdev; + struct input_dev *idev; + int error, i; + + if (!report) + return -ENODEV; + if (report->maxfield != 1 || report->field[0]->report_count != 2 || + report->field[0]->report_size != 8) { + dev_err(&hdev->dev, "unsupported KEY_STATE report"); + return -EINVAL; + } + + idev = input_allocate_device(); + if (idev == NULL) { + dev_err(&hdev->dev, "failed to allocate input device"); + return -ENOMEM; + } + input_set_drvdata(idev, hdev); + memcpy(data->keycode, def_keymap, sizeof(def_keymap)); + idev->name = hdev->name; + idev->phys = hdev->phys; + idev->uniq = hdev->uniq; + idev->id.bustype = hdev->bus; + idev->id.vendor = hdev->vendor; + idev->id.product = hdev->product; + idev->id.version = hdev->version; + idev->dev.parent = hdev->dev.parent; + idev->keycode = &data->keycode; + idev->keycodemax = PICOLCD_KEYS; + idev->keycodesize = sizeof(data->keycode[0]); + input_set_capability(idev, EV_MSC, MSC_SCAN); + set_bit(EV_REP, idev->evbit); + for (i = 0; i < PICOLCD_KEYS; i++) + input_set_capability(idev, EV_KEY, data->keycode[i]); + error = input_register_device(idev); + if (error) { + dev_err(&hdev->dev, "error registering the input device"); + input_free_device(idev); + return error; + } + data->input_keys = idev; + return 0; +} + +static void picolcd_exit_keys(struct picolcd_data *data) +{ + struct input_dev *idev = data->input_keys; + + data->input_keys = NULL; + if (idev) + input_unregister_device(idev); +} + +/* initialize CIR input device */ +static inline int picolcd_init_cir(struct picolcd_data *data, struct hid_report *report) +{ + /* support not implemented yet */ + return 0; +} + +static inline void picolcd_exit_cir(struct picolcd_data *data) +{ +} + +static int picolcd_probe_lcd(struct hid_device *hdev, struct picolcd_data *data) +{ + struct hid_report *report; + int error; + + error = picolcd_check_version(hdev); + if (error) + return error; + + if (data->version[0] != 0 && data->version[1] != 3) + dev_info(&hdev->dev, "Device with untested firmware revision, " + "please submit /sys/kernel/debug/hid/%s/rdesc for this device.\n", + dev_name(&hdev->dev)); + + /* Setup keypad input device */ + error = picolcd_init_keys(data, picolcd_in_report(REPORT_KEY_STATE, hdev)); + if (error) + goto err; + + /* Setup CIR input device */ + error = picolcd_init_cir(data, picolcd_in_report(REPORT_IR_DATA, hdev)); + if (error) + goto err; + +#ifdef CONFIG_DEBUG_FS + report = picolcd_out_report(REPORT_READ_MEMORY, hdev); + if (report && report->maxfield == 1 && report->field[0]->report_size == 8) + data->addr_sz = report->field[0]->report_count - 1; + else + data->addr_sz = -1; +#endif + return 0; +err: + picolcd_exit_cir(data); + picolcd_exit_keys(data); + return error; +} + +static int picolcd_probe_bootloader(struct hid_device *hdev, struct picolcd_data *data) +{ + struct hid_report *report; + int error; + + error = picolcd_check_version(hdev); + if (error) + return error; + + if (data->version[0] != 1 && data->version[1] != 0) + dev_info(&hdev->dev, "Device with untested bootloader revision, " + "please submit /sys/kernel/debug/hid/%s/rdesc for this device.\n", + dev_name(&hdev->dev)); + +#ifdef CONFIG_DEBUG_FS + report = picolcd_out_report(REPORT_BL_READ_MEMORY, hdev); + if (report && report->maxfield == 1 && report->field[0]->report_size == 8) + data->addr_sz = report->field[0]->report_count - 1; + else + data->addr_sz = -1; +#endif + return 0; +} + +static int picolcd_probe(struct hid_device *hdev, + const struct hid_device_id *id) +{ + struct picolcd_data *data; + int error = -ENOMEM; + + dbg_hid(PICOLCD_NAME " hardware probe...\n"); + + /* + * Let's allocate the picolcd data structure, set some reasonable + * defaults, and associate it with the device + */ + data = kzalloc(sizeof(struct picolcd_data), GFP_KERNEL); + if (data == NULL) { + dev_err(&hdev->dev, "can't allocate space for Minibox PicoLCD device data\n"); + error = -ENOMEM; + goto err_no_cleanup; + } + + spin_lock_init(&data->lock); + mutex_init(&data->mutex); + data->hdev = hdev; + if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER) + data->status |= PICOLCD_BOOTLOADER; + hid_set_drvdata(hdev, data); + + /* Parse the device reports and start it up */ + error = hid_parse(hdev); + if (error) { + dev_err(&hdev->dev, "device report parse failed\n"); + goto err_cleanup_data; + } + + /* We don't use hidinput but hid_hw_start() fails if nothing is + * claimed. So spoof claimed input. */ + hdev->claimed = HID_CLAIMED_INPUT; + error = hid_hw_start(hdev, 0); + hdev->claimed = 0; + if (error) { + dev_err(&hdev->dev, "hardware start failed\n"); + goto err_cleanup_data; + } + + error = hdev->ll_driver->open(hdev); + if (error) { + dev_err(&hdev->dev, "failed to open input interrupt pipe for key and IR events\n"); + goto err_cleanup_hid_hw; + } + + error = device_create_file(&hdev->dev, &dev_attr_operation_mode); + if (error) { + dev_err(&hdev->dev, "failed to create sysfs attributes\n"); + goto err_cleanup_hid_ll; + } + + if (data->status & PICOLCD_BOOTLOADER) + error = picolcd_probe_bootloader(hdev, data); + else + error = picolcd_probe_lcd(hdev, data); + if (error) + goto err_cleanup_sysfs; + + dbg_hid(PICOLCD_NAME " activated and initialized\n"); + return 0; + +err_cleanup_sysfs: + device_remove_file(&hdev->dev, &dev_attr_operation_mode); +err_cleanup_hid_ll: + hdev->ll_driver->close(hdev); +err_cleanup_hid_hw: + hid_hw_stop(hdev); +err_cleanup_data: + kfree(data); +err_no_cleanup: + hid_set_drvdata(hdev, NULL); + + return error; +} + +static void picolcd_remove(struct hid_device *hdev) +{ + struct picolcd_data *data = hid_get_drvdata(hdev); + unsigned long flags; + + dbg_hid(PICOLCD_NAME " hardware remove...\n"); + spin_lock_irqsave(&data->lock, flags); + data->status |= PICOLCD_FAILED; + spin_unlock_irqrestore(&data->lock, flags); + + device_remove_file(&hdev->dev, &dev_attr_operation_mode); + hdev->ll_driver->close(hdev); + hid_hw_stop(hdev); + hid_set_drvdata(hdev, NULL); + + /* Shortcut potential pending reply that will never arrive */ + spin_lock_irqsave(&data->lock, flags); + if (data->pending) + complete(&data->pending->ready); + spin_unlock_irqrestore(&data->lock, flags); + + /* Cleanup input */ + picolcd_exit_cir(data); + picolcd_exit_keys(data); + + mutex_destroy(&data->mutex); + /* Finally, clean up the picolcd data itself */ + kfree(data); +} + +static const struct hid_device_id picolcd_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD) }, + { HID_USB_DEVICE(USB_VENDOR_ID_MICROCHIP, USB_DEVICE_ID_PICOLCD_BOOTLOADER) }, + { } +}; +MODULE_DEVICE_TABLE(hid, picolcd_devices); + +static struct hid_driver picolcd_driver = { + .name = "hid-picolcd", + .id_table = picolcd_devices, + .probe = picolcd_probe, + .remove = picolcd_remove, + .raw_event = picolcd_raw_event, +}; + +static int __init picolcd_init(void) +{ + return hid_register_driver(&picolcd_driver); +} + +static void __exit picolcd_exit(void) +{ + hid_unregister_driver(&picolcd_driver); +} + +module_init(picolcd_init); +module_exit(picolcd_exit); +MODULE_DESCRIPTION("Minibox graphics PicoLCD Driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3-70-g09d2 From b8c21cf697d165999cc21a90e6caa73690ac6190 Mon Sep 17 00:00:00 2001 From: Bruno Prémont Date: Tue, 30 Mar 2010 22:34:30 +0200 Subject: HID: add framebuffer support to PicoLCD device MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add framebuffer support to PicoLCD device with use of deferred-io. Only changed areas of framebuffer get sent to device in order to save USB bandwidth and especially resources on PicoLCD device or allow higher refresh rate for a small area. Changed tiles are determined while updating shadow framebuffer. Signed-off-by: Bruno Prémont Signed-off-by: Jiri Kosina --- Documentation/ABI/testing/sysfs-driver-hid-picolcd | 17 + drivers/hid/Kconfig | 7 +- drivers/hid/hid-picolcd.c | 567 ++++++++++++++++++++- drivers/hid/usbhid/hid-core.c | 1 + 4 files changed, 590 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-driver-hid-picolcd b/Documentation/ABI/testing/sysfs-driver-hid-picolcd index 6fb4f21469f..14f52d70621 100644 --- a/Documentation/ABI/testing/sysfs-driver-hid-picolcd +++ b/Documentation/ABI/testing/sysfs-driver-hid-picolcd @@ -15,3 +15,20 @@ Description: Make it possible to switch the PicoLCD device between LCD disconnected and reconnects after above delay (default value is 5 seconds though this default should not be relied on). + +What: /sys/bus/usb/devices/-:./::./fb_update_rate +Date: March 2010 +Contact: Bruno Prémont +Description: Make it possible to adjust defio refresh rate. + + Reading: returns list of available refresh rates (expressed in Hz), + the active refresh rate being enclosed in brackets ('[' and ']') + + Writing: accepts new refresh rate expressed in integer Hz + within permitted rates. + + Note: As device can barely do 2 complete refreshes a second + it only makes sense to adjust this value if only one or two + tiles get changed and it's not appropriate to expect the application + to flush it's tiny changes explicitely at higher than default rate. + diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 138ba6a277e..a813ea9c792 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -265,6 +265,11 @@ config HID_PETALYNX config HID_PICOLCD tristate "PicoLCD (graphic version)" depends on USB_HID + select FB_DEFERRED_IO if FB + select FB_SYS_FILLRECT if FB + select FB_SYS_COPYAREA if FB + select FB_SYS_IMAGEBLIT if FB + select FB_SYS_FOPS if FB ---help--- This provides support for Minibox PicoLCD devices, currently only the graphical ones are supported. @@ -272,8 +277,8 @@ config HID_PICOLCD This includes support for the following device features: - Keypad - Switching between Firmware and Flash mode - Features that are not (yet) supported: - Framebuffer for monochrome 256x64 display + Features that are not (yet) supported: - Backlight control - Contrast control - IR diff --git a/drivers/hid/hid-picolcd.c b/drivers/hid/hid-picolcd.c index c7855f38889..e14464789e1 100644 --- a/drivers/hid/hid-picolcd.c +++ b/drivers/hid/hid-picolcd.c @@ -24,6 +24,9 @@ #include "usbhid/usbhid.h" #include +#include +#include + #include #include @@ -69,6 +72,59 @@ #define REPORT_HOOK_VERSION 0xf7 /* LCD: IN[2], OUT[1] */ #define REPORT_EXIT_FLASHER 0xff /* Bootloader: OUT[2] */ +#if defined(CONFIG_FB) || defined(CONFIG_FB_MODULE) +/* Framebuffer + * + * The PicoLCD use a Topway LCD module of 256x64 pixel + * This display area is tiled over 4 controllers with 8 tiles + * each. Each tile has 8x64 pixel, each data byte representing + * a 1-bit wide vertical line of the tile. + * + * The display can be updated at a tile granularity. + * + * Chip 1 Chip 2 Chip 3 Chip 4 + * +----------------+----------------+----------------+----------------+ + * | Tile 1 | Tile 1 | Tile 1 | Tile 1 | + * +----------------+----------------+----------------+----------------+ + * | Tile 2 | Tile 2 | Tile 2 | Tile 2 | + * +----------------+----------------+----------------+----------------+ + * ... + * +----------------+----------------+----------------+----------------+ + * | Tile 8 | Tile 8 | Tile 8 | Tile 8 | + * +----------------+----------------+----------------+----------------+ + */ +#define PICOLCDFB_NAME "picolcdfb" +#define PICOLCDFB_WIDTH (256) +#define PICOLCDFB_HEIGHT (64) +#define PICOLCDFB_SIZE (PICOLCDFB_WIDTH * PICOLCDFB_HEIGHT / 8) + +#define PICOLCDFB_UPDATE_RATE_LIMIT 10 +#define PICOLCDFB_UPDATE_RATE_DEFAULT 2 + +/* Framebuffer visual structures */ +static const struct fb_fix_screeninfo picolcdfb_fix = { + .id = PICOLCDFB_NAME, + .type = FB_TYPE_PACKED_PIXELS, + .visual = FB_VISUAL_MONO01, + .xpanstep = 0, + .ypanstep = 0, + .ywrapstep = 0, + .line_length = PICOLCDFB_WIDTH / 8, + .accel = FB_ACCEL_NONE, +}; + +static const struct fb_var_screeninfo picolcdfb_var = { + .xres = PICOLCDFB_WIDTH, + .yres = PICOLCDFB_HEIGHT, + .xres_virtual = PICOLCDFB_WIDTH, + .yres_virtual = PICOLCDFB_HEIGHT, + .width = 103, + .height = 26, + .bits_per_pixel = 1, + .grayscale = 1, +}; +#endif /* CONFIG_FB */ + /* Input device * * The PicoLCD has an IR receiver header, a built-in keypad with 5 keys @@ -118,6 +174,16 @@ struct picolcd_data { struct input_dev *input_cir; unsigned short keycode[PICOLCD_KEYS]; +#if defined(CONFIG_FB) || defined(CONFIG_FB_MODULE) + /* Framebuffer stuff */ + u8 fb_update_rate; + u8 fb_bpp; + u8 *fb_vbitmap; /* local copy of what was sent to PicoLCD */ + u8 *fb_bitmap; /* framebuffer */ + struct fb_info *fb_info; + struct fb_deferred_io fb_defio; +#endif /* CONFIG_FB */ + /* Housekeeping stuff */ spinlock_t lock; struct mutex mutex; @@ -125,6 +191,7 @@ struct picolcd_data { int status; #define PICOLCD_BOOTLOADER 1 #define PICOLCD_FAILED 2 +#define PICOLCD_READY_FB 4 }; @@ -197,6 +264,486 @@ static struct picolcd_pending *picolcd_send_and_wait(struct hid_device *hdev, return work; } +#if defined(CONFIG_FB) || defined(CONFIG_FB_MODULE) +/* Send a given tile to PicoLCD */ +static int picolcd_fb_send_tile(struct hid_device *hdev, int chip, int tile) +{ + struct picolcd_data *data = hid_get_drvdata(hdev); + struct hid_report *report1 = picolcd_out_report(REPORT_LCD_CMD_DATA, hdev); + struct hid_report *report2 = picolcd_out_report(REPORT_LCD_DATA, hdev); + unsigned long flags; + u8 *tdata; + int i; + + if (!report1 || report1->maxfield != 1 || !report2 || report2->maxfield != 1) + return -ENODEV; + + spin_lock_irqsave(&data->lock, flags); + hid_set_field(report1->field[0], 0, chip << 2); + hid_set_field(report1->field[0], 1, 0x02); + hid_set_field(report1->field[0], 2, 0x00); + hid_set_field(report1->field[0], 3, 0x00); + hid_set_field(report1->field[0], 4, 0xb8 | tile); + hid_set_field(report1->field[0], 5, 0x00); + hid_set_field(report1->field[0], 6, 0x00); + hid_set_field(report1->field[0], 7, 0x40); + hid_set_field(report1->field[0], 8, 0x00); + hid_set_field(report1->field[0], 9, 0x00); + hid_set_field(report1->field[0], 10, 32); + + hid_set_field(report2->field[0], 0, (chip << 2) | 0x01); + hid_set_field(report2->field[0], 1, 0x00); + hid_set_field(report2->field[0], 2, 0x00); + hid_set_field(report2->field[0], 3, 32); + + tdata = data->fb_vbitmap + (tile * 4 + chip) * 64; + for (i = 0; i < 64; i++) + if (i < 32) + hid_set_field(report1->field[0], 11 + i, tdata[i]); + else + hid_set_field(report2->field[0], 4 + i - 32, tdata[i]); + + usbhid_submit_report(data->hdev, report1, USB_DIR_OUT); + usbhid_submit_report(data->hdev, report2, USB_DIR_OUT); + spin_unlock_irqrestore(&data->lock, flags); + return 0; +} + +/* Translate a single tile*/ +static int picolcd_fb_update_tile(u8 *vbitmap, const u8 *bitmap, int bpp, + int chip, int tile) +{ + int i, b, changed = 0; + u8 tdata[64]; + u8 *vdata = vbitmap + (tile * 4 + chip) * 64; + + if (bpp == 1) { + for (b = 7; b >= 0; b--) { + const u8 *bdata = bitmap + tile * 256 + chip * 8 + b * 32; + for (i = 0; i < 64; i++) { + tdata[i] <<= 1; + tdata[i] |= (bdata[i/8] >> (7 - i % 8)) & 0x01; + } + } + } else if (bpp == 8) { + for (b = 7; b >= 0; b--) { + const u8 *bdata = bitmap + (tile * 256 + chip * 8 + b * 32) * 8; + for (i = 0; i < 64; i++) { + tdata[i] <<= 1; + tdata[i] |= (bdata[i] & 0x80) ? 0x01 : 0x00; + } + } + } else { + /* Oops, we should never get here! */ + WARN_ON(1); + return 0; + } + + for (i = 0; i < 64; i++) + if (tdata[i] != vdata[i]) { + changed = 1; + vdata[i] = tdata[i]; + } + return changed; +} + +/* Reconfigure LCD display */ +static int picolcd_fb_reset(struct picolcd_data *data, int clear) +{ + struct hid_report *report = picolcd_out_report(REPORT_LCD_CMD, data->hdev); + int i, j; + unsigned long flags; + static const u8 mapcmd[8] = { 0x00, 0x02, 0x00, 0x64, 0x3f, 0x00, 0x64, 0xc0 }; + + if (!report || report->maxfield != 1) + return -ENODEV; + + spin_lock_irqsave(&data->lock, flags); + for (i = 0; i < 4; i++) { + for (j = 0; j < report->field[0]->maxusage; j++) + if (j == 0) + hid_set_field(report->field[0], j, i << 2); + else if (j < sizeof(mapcmd)) + hid_set_field(report->field[0], j, mapcmd[j]); + else + hid_set_field(report->field[0], j, 0); + usbhid_submit_report(data->hdev, report, USB_DIR_OUT); + } + + data->status |= PICOLCD_READY_FB; + spin_unlock_irqrestore(&data->lock, flags); + + if (data->fb_bitmap) { + if (clear) { + memset(data->fb_vbitmap, 0xff, PICOLCDFB_SIZE); + memset(data->fb_bitmap, 0, PICOLCDFB_SIZE*data->fb_bpp); + } else { + /* invert 1 byte in each tile to force resend */ + for (i = 0; i < PICOLCDFB_SIZE; i += 64) + data->fb_vbitmap[i] = ~data->fb_vbitmap[i]; + } + } + + /* schedule first output of framebuffer */ + if (data->fb_info) + schedule_delayed_work(&data->fb_info->deferred_work, 0); + + return 0; +} + +/* Update fb_vbitmap from the screen_base and send changed tiles to device */ +static void picolcd_fb_update(struct picolcd_data *data) +{ + int chip, tile, n; + unsigned long flags; + + spin_lock_irqsave(&data->lock, flags); + if (!(data->status & PICOLCD_READY_FB)) { + spin_unlock_irqrestore(&data->lock, flags); + picolcd_fb_reset(data, 0); + } else { + spin_unlock_irqrestore(&data->lock, flags); + } + + /* + * Translate the framebuffer into the format needed by the PicoLCD. + * See display layout above. + * Do this one tile after the other and push those tiles that changed. + * + * Wait for our IO to complete as otherwise we might flood the queue! + */ + n = 0; + for (chip = 0; chip < 4; chip++) + for (tile = 0; tile < 8; tile++) + if (picolcd_fb_update_tile(data->fb_vbitmap, + data->fb_bitmap, data->fb_bpp, chip, tile)) { + n += 2; + if (n >= HID_OUTPUT_FIFO_SIZE / 2) { + usbhid_wait_io(data->hdev); + n = 0; + } + picolcd_fb_send_tile(data->hdev, chip, tile); + } + if (n) + usbhid_wait_io(data->hdev); +} + +/* Stub to call the system default and update the image on the picoLCD */ +static void picolcd_fb_fillrect(struct fb_info *info, + const struct fb_fillrect *rect) +{ + if (!info->par) + return; + sys_fillrect(info, rect); + + schedule_delayed_work(&info->deferred_work, 0); +} + +/* Stub to call the system default and update the image on the picoLCD */ +static void picolcd_fb_copyarea(struct fb_info *info, + const struct fb_copyarea *area) +{ + if (!info->par) + return; + sys_copyarea(info, area); + + schedule_delayed_work(&info->deferred_work, 0); +} + +/* Stub to call the system default and update the image on the picoLCD */ +static void picolcd_fb_imageblit(struct fb_info *info, const struct fb_image *image) +{ + if (!info->par) + return; + sys_imageblit(info, image); + + schedule_delayed_work(&info->deferred_work, 0); +} + +/* + * this is the slow path from userspace. they can seek and write to + * the fb. it's inefficient to do anything less than a full screen draw + */ +static ssize_t picolcd_fb_write(struct fb_info *info, const char __user *buf, + size_t count, loff_t *ppos) +{ + ssize_t ret; + if (!info->par) + return -ENODEV; + ret = fb_sys_write(info, buf, count, ppos); + if (ret >= 0) + schedule_delayed_work(&info->deferred_work, 0); + return ret; +} + +static int picolcd_fb_blank(int blank, struct fb_info *info) +{ + if (!info->par) + return -ENODEV; + /* We let fb notification do this for us via lcd/backlight device */ + return 0; +} + +static void picolcd_fb_destroy(struct fb_info *info) +{ + struct picolcd_data *data = info->par; + info->par = NULL; + if (data) + data->fb_info = NULL; + fb_deferred_io_cleanup(info); + framebuffer_release(info); +} + +static int picolcd_fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) +{ + __u32 bpp = var->bits_per_pixel; + __u32 activate = var->activate; + + /* only allow 1/8 bit depth (8-bit is grayscale) */ + *var = picolcdfb_var; + var->activate = activate; + if (bpp >= 8) + var->bits_per_pixel = 8; + else + var->bits_per_pixel = 1; + return 0; +} + +static int picolcd_set_par(struct fb_info *info) +{ + struct picolcd_data *data = info->par; + u8 *o_fb, *n_fb; + if (info->var.bits_per_pixel == data->fb_bpp) + return 0; + /* switch between 1/8 bit depths */ + if (info->var.bits_per_pixel != 1 && info->var.bits_per_pixel != 8) + return -EINVAL; + + o_fb = data->fb_bitmap; + n_fb = vmalloc(PICOLCDFB_SIZE*info->var.bits_per_pixel); + if (!n_fb) + return -ENOMEM; + + fb_deferred_io_cleanup(info); + /* translate FB content to new bits-per-pixel */ + if (info->var.bits_per_pixel == 1) { + int i, b; + for (i = 0; i < PICOLCDFB_SIZE; i++) { + u8 p = 0; + for (b = 0; b < 8; b++) { + p <<= 1; + p |= o_fb[i*8+b] ? 0x01 : 0x00; + } + } + info->fix.visual = FB_VISUAL_MONO01; + info->fix.line_length = PICOLCDFB_WIDTH / 8; + } else { + int i; + for (i = 0; i < PICOLCDFB_SIZE * 8; i++) + n_fb[i] = o_fb[i/8] & (0x01 << (7 - i % 8)) ? 0xff : 0x00; + info->fix.visual = FB_VISUAL_TRUECOLOR; + info->fix.line_length = PICOLCDFB_WIDTH; + } + + data->fb_bitmap = n_fb; + data->fb_bpp = info->var.bits_per_pixel; + info->screen_base = (char __force __iomem *)n_fb; + info->fix.smem_start = (unsigned long)n_fb; + info->fix.smem_len = PICOLCDFB_SIZE*data->fb_bpp; + fb_deferred_io_init(info); + vfree(o_fb); + return 0; +} + +/* Note this can't be const because of struct fb_info definition */ +static struct fb_ops picolcdfb_ops = { + .owner = THIS_MODULE, + .fb_destroy = picolcd_fb_destroy, + .fb_read = fb_sys_read, + .fb_write = picolcd_fb_write, + .fb_blank = picolcd_fb_blank, + .fb_fillrect = picolcd_fb_fillrect, + .fb_copyarea = picolcd_fb_copyarea, + .fb_imageblit = picolcd_fb_imageblit, + .fb_check_var = picolcd_fb_check_var, + .fb_set_par = picolcd_set_par, +}; + + +/* Callback from deferred IO workqueue */ +static void picolcd_fb_deferred_io(struct fb_info *info, struct list_head *pagelist) +{ + picolcd_fb_update(info->par); +} + +static const struct fb_deferred_io picolcd_fb_defio = { + .delay = HZ / PICOLCDFB_UPDATE_RATE_DEFAULT, + .deferred_io = picolcd_fb_deferred_io, +}; + + +/* + * The "fb_update_rate" sysfs attribute + */ +static ssize_t picolcd_fb_update_rate_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct picolcd_data *data = dev_get_drvdata(dev); + unsigned i, fb_update_rate = data->fb_update_rate; + size_t ret = 0; + + for (i = 1; i <= PICOLCDFB_UPDATE_RATE_LIMIT; i++) + if (ret >= PAGE_SIZE) + break; + else if (i == fb_update_rate) + ret += snprintf(buf+ret, PAGE_SIZE-ret, "[%u] ", i); + else + ret += snprintf(buf+ret, PAGE_SIZE-ret, "%u ", i); + if (ret > 0) + buf[min(ret, (size_t)PAGE_SIZE)-1] = '\n'; + return ret; +} + +static ssize_t picolcd_fb_update_rate_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct picolcd_data *data = dev_get_drvdata(dev); + int i; + unsigned u; + + if (count < 1 || count > 10) + return -EINVAL; + + i = sscanf(buf, "%u", &u); + if (i != 1) + return -EINVAL; + + if (u > PICOLCDFB_UPDATE_RATE_LIMIT) + return -ERANGE; + else if (u == 0) + u = PICOLCDFB_UPDATE_RATE_DEFAULT; + + data->fb_update_rate = u; + data->fb_defio.delay = HZ / data->fb_update_rate; + return count; +} + +static DEVICE_ATTR(fb_update_rate, 0666, picolcd_fb_update_rate_show, + picolcd_fb_update_rate_store); + +/* initialize Framebuffer device */ +static int picolcd_init_framebuffer(struct picolcd_data *data) +{ + struct device *dev = &data->hdev->dev; + struct fb_info *info = NULL; + int error = -ENOMEM; + u8 *fb_vbitmap = NULL; + u8 *fb_bitmap = NULL; + + fb_bitmap = vmalloc(PICOLCDFB_SIZE*picolcdfb_var.bits_per_pixel); + if (fb_bitmap == NULL) { + dev_err(dev, "can't get a free page for framebuffer\n"); + goto err_nomem; + } + + fb_vbitmap = kmalloc(PICOLCDFB_SIZE, GFP_KERNEL); + if (fb_vbitmap == NULL) { + dev_err(dev, "can't alloc vbitmap image buffer\n"); + goto err_nomem; + } + + data->fb_update_rate = PICOLCDFB_UPDATE_RATE_DEFAULT; + data->fb_defio = picolcd_fb_defio; + info = framebuffer_alloc(0, dev); + if (info == NULL) { + dev_err(dev, "failed to allocate a framebuffer\n"); + goto err_nomem; + } + + info->fbdefio = &data->fb_defio; + info->screen_base = (char __force __iomem *)fb_bitmap; + info->fbops = &picolcdfb_ops; + info->var = picolcdfb_var; + info->fix = picolcdfb_fix; + info->fix.smem_len = PICOLCDFB_SIZE; + info->fix.smem_start = (unsigned long)fb_bitmap; + info->par = data; + info->flags = FBINFO_FLAG_DEFAULT; + + data->fb_vbitmap = fb_vbitmap; + data->fb_bitmap = fb_bitmap; + data->fb_bpp = picolcdfb_var.bits_per_pixel; + error = picolcd_fb_reset(data, 1); + if (error) { + dev_err(dev, "failed to configure display\n"); + goto err_cleanup; + } + error = device_create_file(dev, &dev_attr_fb_update_rate); + if (error) { + dev_err(dev, "failed to create sysfs attributes\n"); + goto err_cleanup; + } + data->fb_info = info; + error = register_framebuffer(info); + if (error) { + dev_err(dev, "failed to register framebuffer\n"); + goto err_sysfs; + } + fb_deferred_io_init(info); + /* schedule first output of framebuffer */ + schedule_delayed_work(&info->deferred_work, 0); + return 0; + +err_sysfs: + device_remove_file(dev, &dev_attr_fb_update_rate); +err_cleanup: + data->fb_vbitmap = NULL; + data->fb_bitmap = NULL; + data->fb_bpp = 0; + data->fb_info = NULL; + +err_nomem: + framebuffer_release(info); + vfree(fb_bitmap); + kfree(fb_vbitmap); + return error; +} + +static void picolcd_exit_framebuffer(struct picolcd_data *data) +{ + struct fb_info *info = data->fb_info; + u8 *fb_vbitmap = data->fb_vbitmap; + u8 *fb_bitmap = data->fb_bitmap; + + if (!info) + return; + + data->fb_vbitmap = NULL; + data->fb_bitmap = NULL; + data->fb_bpp = 0; + data->fb_info = NULL; + device_remove_file(&data->hdev->dev, &dev_attr_fb_update_rate); + fb_deferred_io_cleanup(info); + unregister_framebuffer(info); + vfree(fb_bitmap); + kfree(fb_vbitmap); +} + + +#else +static inline int picolcd_fb_reset(struct picolcd_data *data, int clear) +{ + return 0; +} +static inline int picolcd_init_framebuffer(struct picolcd_data *data) +{ + return 0; +} +static void picolcd_exit_framebuffer(struct picolcd_data *data) +{ +} +#endif /* CONFIG_FB */ + /* * input class device */ @@ -314,6 +861,7 @@ static int picolcd_reset(struct hid_device *hdev) struct picolcd_data *data = hid_get_drvdata(hdev); struct hid_report *report = picolcd_out_report(REPORT_RESET, hdev); unsigned long flags; + int error; if (!data || !report || report->maxfield != 1) return -ENODEV; @@ -327,7 +875,16 @@ static int picolcd_reset(struct hid_device *hdev) usbhid_submit_report(hdev, report, USB_DIR_OUT); spin_unlock_irqrestore(&data->lock, flags); - return picolcd_check_version(hdev); + error = picolcd_check_version(hdev); + if (error) + return error; + +#if defined(CONFIG_FB) || defined(CONFIG_FB_MODULE) + if (data->fb_info) + schedule_delayed_work(&data->fb_info->deferred_work, 0); +#endif /* CONFIG_FB */ + + return 0; } /* @@ -1005,6 +1562,11 @@ static int picolcd_probe_lcd(struct hid_device *hdev, struct picolcd_data *data) if (error) goto err; + /* Set up the framebuffer device */ + error = picolcd_init_framebuffer(data); + if (error) + goto err; + #ifdef CONFIG_DEBUG_FS report = picolcd_out_report(REPORT_READ_MEMORY, hdev); if (report && report->maxfield == 1 && report->field[0]->report_size == 8) @@ -1014,6 +1576,7 @@ static int picolcd_probe_lcd(struct hid_device *hdev, struct picolcd_data *data) #endif return 0; err: + picolcd_exit_framebuffer(data); picolcd_exit_cir(data); picolcd_exit_keys(data); return error; @@ -1143,6 +1706,8 @@ static void picolcd_remove(struct hid_device *hdev) complete(&data->pending->ready); spin_unlock_irqrestore(&data->lock, flags); + /* Clean up the framebuffer */ + picolcd_exit_framebuffer(data); /* Cleanup input */ picolcd_exit_cir(data); picolcd_exit_keys(data); diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c index 56d06cd8075..3e7909b0f12 100644 --- a/drivers/hid/usbhid/hid-core.c +++ b/drivers/hid/usbhid/hid-core.c @@ -623,6 +623,7 @@ int usbhid_wait_io(struct hid_device *hid) return 0; } +EXPORT_SYMBOL_GPL(usbhid_wait_io); static int hid_set_idle(struct usb_device *dev, int ifnum, int report, int idle) { -- cgit v1.2.3-70-g09d2 From 25c2d55c00c6097e6792ebf21e31342f23b9b768 Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Wed, 24 Mar 2010 13:17:50 +0800 Subject: sched: Remove USER_SCHED from documentation USER_SCHED has been removed, so update the documentation accordingly. Signed-off-by: Li Zefan Signed-off-by: Peter Zijlstra Acked-by: Serge E. Hallyn LKML-Reference: <4BA9A07E.8070508@cn.fujitsu.com> Signed-off-by: Ingo Molnar --- Documentation/scheduler/sched-design-CFS.txt | 54 ++-------------------------- Documentation/scheduler/sched-rt-group.txt | 20 +++-------- 2 files changed, 7 insertions(+), 67 deletions(-) (limited to 'Documentation') diff --git a/Documentation/scheduler/sched-design-CFS.txt b/Documentation/scheduler/sched-design-CFS.txt index 6f33593e59e..8239ebbcddc 100644 --- a/Documentation/scheduler/sched-design-CFS.txt +++ b/Documentation/scheduler/sched-design-CFS.txt @@ -211,7 +211,7 @@ provide fair CPU time to each such task group. For example, it may be desirable to first provide fair CPU time to each user on the system and then to each task belonging to a user. -CONFIG_GROUP_SCHED strives to achieve exactly that. It lets tasks to be +CONFIG_CGROUP_SCHED strives to achieve exactly that. It lets tasks to be grouped and divides CPU time fairly among such groups. CONFIG_RT_GROUP_SCHED permits to group real-time (i.e., SCHED_FIFO and @@ -220,38 +220,11 @@ SCHED_RR) tasks. CONFIG_FAIR_GROUP_SCHED permits to group CFS (i.e., SCHED_NORMAL and SCHED_BATCH) tasks. -At present, there are two (mutually exclusive) mechanisms to group tasks for -CPU bandwidth control purposes: - - - Based on user id (CONFIG_USER_SCHED) - - With this option, tasks are grouped according to their user id. - - - Based on "cgroup" pseudo filesystem (CONFIG_CGROUP_SCHED) - - This options needs CONFIG_CGROUPS to be defined, and lets the administrator + These options need CONFIG_CGROUPS to be defined, and let the administrator create arbitrary groups of tasks, using the "cgroup" pseudo filesystem. See Documentation/cgroups/cgroups.txt for more information about this filesystem. -Only one of these options to group tasks can be chosen and not both. - -When CONFIG_USER_SCHED is defined, a directory is created in sysfs for each new -user and a "cpu_share" file is added in that directory. - - # cd /sys/kernel/uids - # cat 512/cpu_share # Display user 512's CPU share - 1024 - # echo 2048 > 512/cpu_share # Modify user 512's CPU share - # cat 512/cpu_share # Display user 512's CPU share - 2048 - # - -CPU bandwidth between two users is divided in the ratio of their CPU shares. -For example: if you would like user "root" to get twice the bandwidth of user -"guest," then set the cpu_share for both the users such that "root"'s cpu_share -is twice "guest"'s cpu_share. - -When CONFIG_CGROUP_SCHED is defined, a "cpu.shares" file is created for each +When CONFIG_FAIR_GROUP_SCHED is defined, a "cpu.shares" file is created for each group created using the pseudo filesystem. See example steps below to create task groups and modify their CPU share using the "cgroups" pseudo filesystem. @@ -273,24 +246,3 @@ task groups and modify their CPU share using the "cgroups" pseudo filesystem. # #Launch gmplayer (or your favourite movie player) # echo > multimedia/tasks - -8. Implementation note: user namespaces - -User namespaces are intended to be hierarchical. But they are currently -only partially implemented. Each of those has ramifications for CFS. - -First, since user namespaces are hierarchical, the /sys/kernel/uids -presentation is inadequate. Eventually we will likely want to use sysfs -tagging to provide private views of /sys/kernel/uids within each user -namespace. - -Second, the hierarchical nature is intended to support completely -unprivileged use of user namespaces. So if using user groups, then -we want the users in a user namespace to be children of the user -who created it. - -That is currently unimplemented. So instead, every user in a new -user namespace will receive 1024 shares just like any user in the -initial user namespace. Note that at the moment creation of a new -user namespace requires each of CAP_SYS_ADMIN, CAP_SETUID, and -CAP_SETGID. diff --git a/Documentation/scheduler/sched-rt-group.txt b/Documentation/scheduler/sched-rt-group.txt index 86eabe6c341..605b0d40329 100644 --- a/Documentation/scheduler/sched-rt-group.txt +++ b/Documentation/scheduler/sched-rt-group.txt @@ -126,23 +126,12 @@ priority! 2.3 Basis for grouping tasks ---------------------------- -There are two compile-time settings for allocating CPU bandwidth. These are -configured using the "Basis for grouping tasks" multiple choice menu under -General setup > Group CPU Scheduler: - -a. CONFIG_USER_SCHED (aka "Basis for grouping tasks" = "user id") - -This lets you use the virtual files under -"/sys/kernel/uids//cpu_rt_runtime_us" to control he CPU time reserved for -each user . - -The other option is: - -.o CONFIG_CGROUP_SCHED (aka "Basis for grouping tasks" = "Control groups") +Enabling CONFIG_RT_GROUP_SCHED lets you explicitly allocate real +CPU bandwidth to task groups. This uses the /cgroup virtual file system and "/cgroup//cpu.rt_runtime_us" to control the CPU time reserved for each -control group instead. +control group. For more information on working with control groups, you should read Documentation/cgroups/cgroups.txt as well. @@ -161,8 +150,7 @@ For now, this can be simplified to just the following (but see Future plans): =============== There is work in progress to make the scheduling period for each group -("/sys/kernel/uids//cpu_rt_period_us" or -"/cgroup//cpu.rt_period_us" respectively) configurable as well. +("/cgroup//cpu.rt_period_us") configurable as well. The constraint on the period is that a subgroup must have a smaller or equal period to its parent. But realistically its not very useful _yet_ -- cgit v1.2.3-70-g09d2 From 2b068618031a91929c21410069f872178ec00329 Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Mon, 22 Mar 2010 09:17:39 -0700 Subject: iwlwifi: merge module parameters into single place Module parameters used to be defined in both iwl-5000.c and iwl-4965.c, after the code re-structure, merge into iwl-agn.c for easy to read and maintenance. Number of module parameters are deprecated after this merge. These are also scheduled for removal by 2.6.40. The current supported parameters are: parm: debug50:50XX debug output mask (deprecated) (uint) parm: debug:debug output mask (uint) parm: swcrypto50:using crypto in software (default 0 [hardware]) (deprecated) (bool) parm: swcrypto:using crypto in software (default 0 [hardware]) (int) parm: queues_num50:number of hw queues in 50xx series (deprecated) (int) parm: queues_num:number of hw queues. (int) parm: 11n_disable50:disable 50XX 11n functionality (deprecated) (int) parm: 11n_disable:disable 11n functionality (int) parm: amsdu_size_8K50:enable 8K amsdu size in 50XX series (deprecated) (int) parm: amsdu_size_8K:enable 8K amsdu size (int) parm: fw_restart50:restart firmware in case of error (deprecated) (int) parm: fw_restart:restart firmware in case of error (int) parm: disable_hw_scan:disable hardware scanning (default 0) (int) Remove "antenna" module parameter, it is not being used in "agn" driver. Signed-off-by: Wey-Yi Guy Signed-off-by: Reinette Chatre --- Documentation/feature-removal-schedule.txt | 11 +++++++++++ drivers/net/wireless/iwlwifi/iwl-4965.c | 29 +---------------------------- drivers/net/wireless/iwlwifi/iwl-5000.c | 13 ------------- drivers/net/wireless/iwlwifi/iwl-agn.c | 30 ++++++++++++++++++++++++++++++ 4 files changed, 42 insertions(+), 41 deletions(-) (limited to 'Documentation') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index a841e79dfac..4e78611c526 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -545,3 +545,14 @@ Why: udev fully replaces this special file system that only contains CAPI NCCI TTY device nodes. User space (pppdcapiplugin) works without noticing the difference. Who: Jan Kiszka + +---------------------------- + +What: iwlwifi 50XX module parameters +When: 2.6.40 +Why: The "..50" modules parameters were used to configure 5000 series and + up devices; different set of module parameters also available for 4965 + with same functionalities. Consolidate both set into single place + in drivers/net/wireless/iwlwifi/iwl-agn.c + +Who: Wey-Yi Guy diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c index 1808c976e50..083983a9d69 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965.c @@ -61,14 +61,6 @@ static int iwl4965_hw_get_temperature(struct iwl_priv *priv); #define _IWL4965_MODULE_FIRMWARE(api) IWL4965_FW_PRE #api ".ucode" #define IWL4965_MODULE_FIRMWARE(api) _IWL4965_MODULE_FIRMWARE(api) - -/* module parameters */ -static struct iwl_mod_params iwl4965_mod_params = { - .amsdu_size_8K = 1, - .restart_fw = 1, - /* the rest are 0 by default */ -}; - /* check contents of special bootstrap uCode SRAM */ static int iwl4965_verify_bsm(struct iwl_priv *priv) { @@ -2245,7 +2237,7 @@ struct iwl_cfg iwl4965_agn_cfg = { .ops = &iwl4965_ops, .num_of_queues = IWL49_NUM_QUEUES, .num_of_ampdu_queues = IWL49_NUM_AMPDU_QUEUES, - .mod_params = &iwl4965_mod_params, + .mod_params = &iwlagn_mod_params, .valid_tx_ant = ANT_AB, .valid_rx_ant = ANT_ABC, .pll_cfg_val = 0, @@ -2265,22 +2257,3 @@ struct iwl_cfg iwl4965_agn_cfg = { /* Module firmware */ MODULE_FIRMWARE(IWL4965_MODULE_FIRMWARE(IWL4965_UCODE_API_MAX)); -module_param_named(antenna, iwl4965_mod_params.antenna, int, S_IRUGO); -MODULE_PARM_DESC(antenna, "select antenna (1=Main, 2=Aux, default 0 [both])"); -module_param_named(swcrypto, iwl4965_mod_params.sw_crypto, int, S_IRUGO); -MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); -module_param_named( - disable_hw_scan, iwl4965_mod_params.disable_hw_scan, int, S_IRUGO); -MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)"); - -module_param_named(queues_num, iwl4965_mod_params.num_of_queues, int, S_IRUGO); -MODULE_PARM_DESC(queues_num, "number of hw queues."); -/* 11n */ -module_param_named(11n_disable, iwl4965_mod_params.disable_11n, int, S_IRUGO); -MODULE_PARM_DESC(11n_disable, "disable 11n functionality"); -module_param_named(amsdu_size_8K, iwl4965_mod_params.amsdu_size_8K, - int, S_IRUGO); -MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size"); - -module_param_named(fw_restart4965, iwl4965_mod_params.restart_fw, int, S_IRUGO); -MODULE_PARM_DESC(fw_restart4965, "restart firmware in case of error"); diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c index 5ca451722d1..ecc302e4c20 100644 --- a/drivers/net/wireless/iwlwifi/iwl-5000.c +++ b/drivers/net/wireless/iwlwifi/iwl-5000.c @@ -585,16 +585,3 @@ struct iwl_cfg iwl5150_abg_cfg = { MODULE_FIRMWARE(IWL5000_MODULE_FIRMWARE(IWL5000_UCODE_API_MAX)); MODULE_FIRMWARE(IWL5150_MODULE_FIRMWARE(IWL5150_UCODE_API_MAX)); - -module_param_named(swcrypto50, iwlagn_mod_params.sw_crypto, bool, S_IRUGO); -MODULE_PARM_DESC(swcrypto50, - "using software crypto engine (default 0 [hardware])\n"); -module_param_named(queues_num50, iwlagn_mod_params.num_of_queues, int, S_IRUGO); -MODULE_PARM_DESC(queues_num50, "number of hw queues in 50xx series"); -module_param_named(11n_disable50, iwlagn_mod_params.disable_11n, int, S_IRUGO); -MODULE_PARM_DESC(11n_disable50, "disable 50XX 11n functionality"); -module_param_named(amsdu_size_8K50, iwlagn_mod_params.amsdu_size_8K, - int, S_IRUGO); -MODULE_PARM_DESC(amsdu_size_8K50, "enable 8K amsdu size in 50XX series"); -module_param_named(fw_restart50, iwlagn_mod_params.restart_fw, int, S_IRUGO); -MODULE_PARM_DESC(fw_restart50, "restart firmware in case of error"); diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c index b431e9254c0..8262f43df1c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-agn.c +++ b/drivers/net/wireless/iwlwifi/iwl-agn.c @@ -3921,3 +3921,33 @@ module_param_named(debug, iwl_debug_level, uint, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(debug, "debug output mask"); #endif +module_param_named(swcrypto50, iwlagn_mod_params.sw_crypto, bool, S_IRUGO); +MODULE_PARM_DESC(swcrypto50, + "using crypto in software (default 0 [hardware]) (deprecated)"); +module_param_named(swcrypto, iwlagn_mod_params.sw_crypto, int, S_IRUGO); +MODULE_PARM_DESC(swcrypto, "using crypto in software (default 0 [hardware])"); +module_param_named(queues_num50, + iwlagn_mod_params.num_of_queues, int, S_IRUGO); +MODULE_PARM_DESC(queues_num50, + "number of hw queues in 50xx series (deprecated)"); +module_param_named(queues_num, iwlagn_mod_params.num_of_queues, int, S_IRUGO); +MODULE_PARM_DESC(queues_num, "number of hw queues."); +module_param_named(11n_disable50, iwlagn_mod_params.disable_11n, int, S_IRUGO); +MODULE_PARM_DESC(11n_disable50, "disable 50XX 11n functionality (deprecated)"); +module_param_named(11n_disable, iwlagn_mod_params.disable_11n, int, S_IRUGO); +MODULE_PARM_DESC(11n_disable, "disable 11n functionality"); +module_param_named(amsdu_size_8K50, iwlagn_mod_params.amsdu_size_8K, + int, S_IRUGO); +MODULE_PARM_DESC(amsdu_size_8K50, + "enable 8K amsdu size in 50XX series (deprecated)"); +module_param_named(amsdu_size_8K, iwlagn_mod_params.amsdu_size_8K, + int, S_IRUGO); +MODULE_PARM_DESC(amsdu_size_8K, "enable 8K amsdu size"); +module_param_named(fw_restart50, iwlagn_mod_params.restart_fw, int, S_IRUGO); +MODULE_PARM_DESC(fw_restart50, + "restart firmware in case of error (deprecated)"); +module_param_named(fw_restart, iwlagn_mod_params.restart_fw, int, S_IRUGO); +MODULE_PARM_DESC(fw_restart, "restart firmware in case of error"); +module_param_named( + disable_hw_scan, iwlagn_mod_params.disable_hw_scan, int, S_IRUGO); +MODULE_PARM_DESC(disable_hw_scan, "disable hardware scanning (default 0)"); -- cgit v1.2.3-70-g09d2 From d34a5a62da12ffa53b91895d094960b35474f2fc Mon Sep 17 00:00:00 2001 From: Wey-Yi Guy Date: Tue, 23 Mar 2010 10:17:03 -0700 Subject: iwlwifi: deprecate "iwl4965" alias support Internal alias support has been present in module-init-tools for some time, the MODULE_ALIAS("iwl4965") boilerplate aliases can be removed. Signed-off-by: Wey-Yi Guy Signed-off-by: Reinette Chatre --- Documentation/feature-removal-schedule.txt | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'Documentation') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 4e78611c526..d46944f9de5 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -556,3 +556,15 @@ Why: The "..50" modules parameters were used to configure 5000 series and in drivers/net/wireless/iwlwifi/iwl-agn.c Who: Wey-Yi Guy + +---------------------------- + +What: iwl4965 alias support +When: 2.6.40 +Why: Internal alias support has been present in module-init-tools for some + time, the MODULE_ALIAS("iwl4965") boilerplate aliases can be removed + with no impact. + +Who: Wey-Yi Guy + +---------------------------- -- cgit v1.2.3-70-g09d2 From 2f77a3f50c4336dd5358aec0abb5247ded168515 Mon Sep 17 00:00:00 2001 From: James Chapman Date: Fri, 2 Apr 2010 06:19:46 +0000 Subject: l2tp: Update documentation This patch adds documentation about the L2TPv3 functionality. Signed-off-by: James Chapman Reviewed-by: Randy Dunlap Signed-off-by: David S. Miller --- Documentation/networking/l2tp.txt | 247 ++++++++++++++++++++++++++++++++------ 1 file changed, 213 insertions(+), 34 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/l2tp.txt b/Documentation/networking/l2tp.txt index 63214b280e0..e7bf3979fac 100644 --- a/Documentation/networking/l2tp.txt +++ b/Documentation/networking/l2tp.txt @@ -1,44 +1,95 @@ -This brief document describes how to use the kernel's PPPoL2TP driver -to provide L2TP functionality. L2TP is a protocol that tunnels one or -more PPP sessions over a UDP tunnel. It is commonly used for VPNs +This document describes how to use the kernel's L2TP drivers to +provide L2TP functionality. L2TP is a protocol that tunnels one or +more sessions over an IP tunnel. It is commonly used for VPNs (L2TP/IPSec) and by ISPs to tunnel subscriber PPP sessions over an IP -network infrastructure. +network infrastructure. With L2TPv3, it is also useful as a Layer-2 +tunneling infrastructure. + +Features +======== + +L2TPv2 (PPP over L2TP (UDP tunnels)). +L2TPv3 ethernet pseudowires. +L2TPv3 PPP pseudowires. +L2TPv3 IP encapsulation. +Netlink sockets for L2TPv3 configuration management. + +History +======= + +The original pppol2tp driver was introduced in 2.6.23 and provided +L2TPv2 functionality (rfc2661). L2TPv2 is used to tunnel one or more PPP +sessions over a UDP tunnel. + +L2TPv3 (rfc3931) changes the protocol to allow different frame types +to be passed over an L2TP tunnel by moving the PPP-specific parts of +the protocol out of the core L2TP packet headers. Each frame type is +known as a pseudowire type. Ethernet, PPP, HDLC, Frame Relay and ATM +pseudowires for L2TP are defined in separate RFC standards. Another +change for L2TPv3 is that it can be carried directly over IP with no +UDP header (UDP is optional). It is also possible to create static +unmanaged L2TPv3 tunnels manually without a control protocol +(userspace daemon) to manage them. + +To support L2TPv3, the original pppol2tp driver was split up to +separate the L2TP and PPP functionality. Existing L2TPv2 userspace +apps should be unaffected as the original pppol2tp sockets API is +retained. L2TPv3, however, uses netlink to manage L2TPv3 tunnels and +sessions. Design ====== -The PPPoL2TP driver, drivers/net/pppol2tp.c, provides a mechanism by -which PPP frames carried through an L2TP session are passed through -the kernel's PPP subsystem. The standard PPP daemon, pppd, handles all -PPP interaction with the peer. PPP network interfaces are created for -each local PPP endpoint. - -The L2TP protocol http://www.faqs.org/rfcs/rfc2661.html defines L2TP -control and data frames. L2TP control frames carry messages between -L2TP clients/servers and are used to setup / teardown tunnels and -sessions. An L2TP client or server is implemented in userspace and -will use a regular UDP socket per tunnel. L2TP data frames carry PPP -frames, which may be PPP control or PPP data. The kernel's PPP +The L2TP protocol separates control and data frames. The L2TP kernel +drivers handle only L2TP data frames; control frames are always +handled by userspace. L2TP control frames carry messages between L2TP +clients/servers and are used to setup / teardown tunnels and +sessions. An L2TP client or server is implemented in userspace. + +Each L2TP tunnel is implemented using a UDP or L2TPIP socket; L2TPIP +provides L2TPv3 IP encapsulation (no UDP) and is implemented using a +new l2tpip socket family. The tunnel socket is typically created by +userspace, though for unmanaged L2TPv3 tunnels, the socket can also be +created by the kernel. Each L2TP session (pseudowire) gets a network +interface instance. In the case of PPP, these interfaces are created +indirectly by pppd using a pppol2tp socket. In the case of ethernet, +the netdevice is created upon a netlink request to create an L2TPv3 +ethernet pseudowire. + +For PPP, the PPPoL2TP driver, net/l2tp/l2tp_ppp.c, provides a +mechanism by which PPP frames carried through an L2TP session are +passed through the kernel's PPP subsystem. The standard PPP daemon, +pppd, handles all PPP interaction with the peer. PPP network +interfaces are created for each local PPP endpoint. The kernel's PPP subsystem arranges for PPP control frames to be delivered to pppd, while data frames are forwarded as usual. +For ethernet, the L2TPETH driver, net/l2tp/l2tp_eth.c, implements a +netdevice driver, managing virtual ethernet devices, one per +pseudowire. These interfaces can be managed using standard Linux tools +such as "ip" and "ifconfig". If only IP frames are passed over the +tunnel, the interface can be given an IP addresses of itself and its +peer. If non-IP frames are to be passed over the tunnel, the interface +can be added to a bridge using brctl. All L2TP datapath protocol +functions are handled by the L2TP core driver. + Each tunnel and session within a tunnel is assigned a unique tunnel_id and session_id. These ids are carried in the L2TP header of every -control and data packet. The pppol2tp driver uses them to lookup -internal tunnel and/or session contexts. Zero tunnel / session ids are -treated specially - zero ids are never assigned to tunnels or sessions -in the network. In the driver, the tunnel context keeps a pointer to -the tunnel UDP socket. The session context keeps a pointer to the -PPPoL2TP socket, as well as other data that lets the driver interface -to the kernel PPP subsystem. - -Note that the pppol2tp kernel driver handles only L2TP data frames; -L2TP control frames are simply passed up to userspace in the UDP -tunnel socket. The kernel handles all datapath aspects of the -protocol, including data packet resequencing (if enabled). - -There are a number of requirements on the userspace L2TP daemon in -order to use the pppol2tp driver. +control and data packet. (Actually, in L2TPv3, the tunnel_id isn't +present in data frames - it is inferred from the IP connection on +which the packet was received.) The L2TP driver uses the ids to lookup +internal tunnel and/or session contexts to determine how to handle the +packet. Zero tunnel / session ids are treated specially - zero ids are +never assigned to tunnels or sessions in the network. In the driver, +the tunnel context keeps a reference to the tunnel UDP or L2TPIP +socket. The session context holds data that lets the driver interface +to the kernel's network frame type subsystems, i.e. PPP, ethernet. + +Userspace Programming +===================== + +For L2TPv2, there are a number of requirements on the userspace L2TP +daemon in order to use the pppol2tp driver. 1. Use a UDP socket per tunnel. @@ -86,6 +137,35 @@ In addition to the standard PPP ioctls, a PPPIOCGL2TPSTATS is provided to retrieve tunnel and session statistics from the kernel using the PPPoX socket of the appropriate tunnel or session. +For L2TPv3, userspace must use the netlink API defined in +include/linux/l2tp.h to manage tunnel and session contexts. The +general procedure to create a new L2TP tunnel with one session is:- + +1. Open a GENL socket using L2TP_GENL_NAME for configuring the kernel + using netlink. + +2. Create a UDP or L2TPIP socket for the tunnel. + +3. Create a new L2TP tunnel using a L2TP_CMD_TUNNEL_CREATE + request. Set attributes according to desired tunnel parameters, + referencing the UDP or L2TPIP socket created in the previous step. + +4. Create a new L2TP session in the tunnel using a + L2TP_CMD_SESSION_CREATE request. + +The tunnel and all of its sessions are closed when the tunnel socket +is closed. The netlink API may also be used to delete sessions and +tunnels. Configuration and status info may be set or read using netlink. + +The L2TP driver also supports static (unmanaged) L2TPv3 tunnels. These +are where there is no L2TP control message exchange with the peer to +setup the tunnel; the tunnel is configured manually at each end of the +tunnel. There is no need for an L2TP userspace application in this +case -- the tunnel socket is created by the kernel and configured +using parameters sent in the L2TP_CMD_TUNNEL_CREATE netlink +request. The "ip" utility of iproute2 has commands for managing static +L2TPv3 tunnels; do "ip l2tp help" for more information. + Debugging ========= @@ -102,6 +182,69 @@ PPPOL2TP_MSG_CONTROL userspace - kernel interface PPPOL2TP_MSG_SEQ sequence numbers handling PPPOL2TP_MSG_DATA data packets +If enabled, files under a l2tp debugfs directory can be used to dump +kernel state about L2TP tunnels and sessions. To access it, the +debugfs filesystem must first be mounted. + +# mount -t debugfs debugfs /debug + +Files under the l2tp directory can then be accessed. + +# cat /debug/l2tp/tunnels + +The debugfs files should not be used by applications to obtain L2TP +state information because the file format is subject to change. It is +implemented to provide extra debug information to help diagnose +problems.) Users should use the netlink API. + +/proc/net/pppol2tp is also provided for backwards compaibility with +the original pppol2tp driver. It lists information about L2TPv2 +tunnels and sessions only. Its use is discouraged. + +Unmanaged L2TPv3 Tunnels +======================== + +Some commercial L2TP products support unmanaged L2TPv3 ethernet +tunnels, where there is no L2TP control protocol; tunnels are +configured at each side manually. New commands are available in +iproute2's ip utility to support this. + +To create an L2TPv3 ethernet pseudowire between local host 192.168.1.1 +and peer 192.168.1.2, using IP addresses 10.5.1.1 and 10.5.1.2 for the +tunnel endpoints:- + +# modprobe l2tp_eth +# modprobe l2tp_netlink + +# ip l2tp add tunnel tunnel_id 1 peer_tunnel_id 1 udp_sport 5000 \ + udp_dport 5000 encap udp local 192.168.1.1 remote 192.168.1.2 +# ip l2tp add session tunnel_id 1 session_id 1 peer_session_id 1 +# ifconfig -a +# ip addr add 10.5.1.2/32 peer 10.5.1.1/32 dev l2tpeth0 +# ifconfig l2tpeth0 up + +Choose IP addresses to be the address of a local IP interface and that +of the remote system. The IP addresses of the l2tpeth0 interface can be +anything suitable. + +Repeat the above at the peer, with ports, tunnel/session ids and IP +addresses reversed. The tunnel and session IDs can be any non-zero +32-bit number, but the values must be reversed at the peer. + +Host 1 Host2 +udp_sport=5000 udp_sport=5001 +udp_dport=5001 udp_dport=5000 +tunnel_id=42 tunnel_id=45 +peer_tunnel_id=45 peer_tunnel_id=42 +session_id=128 session_id=5196755 +peer_session_id=5196755 peer_session_id=128 + +When done at both ends of the tunnel, it should be possible to send +data over the network. e.g. + +# ping 10.5.1.1 + + Sample Userspace Code ===================== @@ -158,12 +301,48 @@ Sample Userspace Code } return 0; +Internal Implementation +======================= + +The driver keeps a struct l2tp_tunnel context per L2TP tunnel and a +struct l2tp_session context for each session. The l2tp_tunnel is +always associated with a UDP or L2TP/IP socket and keeps a list of +sessions in the tunnel. The l2tp_session context keeps kernel state +about the session. It has private data which is used for data specific +to the session type. With L2TPv2, the session always carried PPP +traffic. With L2TPv3, the session can also carry ethernet frames +(ethernet pseudowire) or other data types such as ATM, HDLC or Frame +Relay. + +When a tunnel is first opened, the reference count on the socket is +increased using sock_hold(). This ensures that the kernel socket +cannot be removed while L2TP's data structures reference it. + +Some L2TP sessions also have a socket (PPP pseudowires) while others +do not (ethernet pseudowires). We can't use the socket reference count +as the reference count for session contexts. The L2TP implementation +therefore has its own internal reference counts on the session +contexts. + +To Do +===== + +Add L2TP tunnel switching support. This would route tunneled traffic +from one L2TP tunnel into another. Specified in +http://tools.ietf.org/html/draft-ietf-l2tpext-tunnel-switching-08 + +Add L2TPv3 VLAN pseudowire support. + +Add L2TPv3 IP pseudowire support. + +Add L2TPv3 ATM pseudowire support. + Miscellaneous -============ +============= -The PPPoL2TP driver was developed as part of the OpenL2TP project by +The L2TP drivers were developed as part of the OpenL2TP project by Katalix Systems Ltd. OpenL2TP is a full-featured L2TP client / server, designed from the ground up to have the L2TP datapath in the kernel. The project also implemented the pppol2tp plugin for pppd which allows pppd to use the kernel driver. Details can be found at -http://openl2tp.sourceforge.net. +http://www.openl2tp.org. -- cgit v1.2.3-70-g09d2 From c56a3b18475b0f93b484c25162c1379f5aee367a Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 13 Apr 2010 12:55:09 +0200 Subject: ALSA: Update the documentation for changes of proc files Signed-off-by: Takashi Iwai --- Documentation/DocBook/writing-an-alsa-driver.tmpl | 27 ++++++++++++++--------- 1 file changed, 17 insertions(+), 10 deletions(-) (limited to 'Documentation') diff --git a/Documentation/DocBook/writing-an-alsa-driver.tmpl b/Documentation/DocBook/writing-an-alsa-driver.tmpl index 0d0f7b4d4b1..0ba149de260 100644 --- a/Documentation/DocBook/writing-an-alsa-driver.tmpl +++ b/Documentation/DocBook/writing-an-alsa-driver.tmpl @@ -5518,34 +5518,41 @@ struct _snd_pcm_runtime { ]]> + + For the raw data, size field must be + set properly. This specifies the maximum size of the proc file access. - The callback is much more complicated than the text-file - version. You need to use a low-level I/O functions such as + The read/write callbacks of raw mode are more direct than the text mode. + You need to use a low-level I/O functions such as copy_from/to_user() to transfer the data. local_max_size) - size = local_max_size - pos; - if (copy_to_user(buf, local_data + pos, size)) + if (copy_to_user(buf, local_data + pos, count)) return -EFAULT; - return size; + return count; } ]]> + + If the size of the info entry has been set up properly, + count and pos are + guaranteed to fit within 0 and the given size. + You don't have to check the range in the callbacks unless any + other condition is required. + -- cgit v1.2.3-70-g09d2 From 6932bf37bed45ce8ed531928b1b0f98162fe6df6 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Fri, 26 Mar 2010 00:06:55 +0000 Subject: genirq: Remove IRQF_DISABLED from core code Remove all code which is related to IRQF_DISABLED from the core kernel code. IRQF_DISABLED still exists as a flag, but becomes a NOOP and will be removed after a grace period. That way we can easily revert to the previous behaviour by just restoring the core code. Signed-off-by: Thomas Gleixner Cc: Peter Zijlstra Cc: Alan Cox Cc: Andi Kleen Cc: David Miller Cc: Greg Kroah-Hartman Cc: Arnaldo Carvalho de Melo Cc: Linus Torvalds LKML-Reference: <20100326000405.991244690@linutronix.de> --- Documentation/feature-removal-schedule.txt | 7 +++++++ include/linux/interrupt.h | 3 ++- kernel/irq/manage.c | 30 ------------------------------ 3 files changed, 9 insertions(+), 31 deletions(-) (limited to 'Documentation') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index ed511af0f79..9c31c2e6368 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -589,3 +589,10 @@ Why: Useful in 2003, implementation is a hack. Generally invoked by accident today. Seen as doing more harm than good. Who: Len Brown + +---------------------------- + +What: IRQF_DISABLED +When: 2.6.36 +Why: The flag is a NOOP as we run interrupt handlers with interrupts disabled +Who: Thomas Gleixner diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h index d7e7a7660c6..e6d2f4441fd 100644 --- a/include/linux/interrupt.h +++ b/include/linux/interrupt.h @@ -39,7 +39,8 @@ * These flags used only by the kernel as part of the * irq handling routines. * - * IRQF_DISABLED - keep irqs disabled when calling the action handler + * IRQF_DISABLED - keep irqs disabled when calling the action handler. + * DEPRECATED. This flag is a NOOP and scheduled to be removed * IRQF_SAMPLE_RANDOM - irq is used to feed the random generator * IRQF_SHARED - allow sharing the irq among several devices * IRQF_PROBE_SHARED - set by callers when they expect sharing mismatches to occur diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c index 84f32278ff1..444d5a81a20 100644 --- a/kernel/irq/manage.c +++ b/kernel/irq/manage.c @@ -757,16 +757,6 @@ __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new) if (new->flags & IRQF_ONESHOT) desc->status |= IRQ_ONESHOT; - /* - * Force MSI interrupts to run with interrupts - * disabled. The multi vector cards can cause stack - * overflows due to nested interrupts when enough of - * them are directed to a core and fire at the same - * time. - */ - if (desc->msi_desc) - new->flags |= IRQF_DISABLED; - if (!(desc->status & IRQ_NOAUTOEN)) { desc->depth = 0; desc->status &= ~IRQ_DISABLED; @@ -1027,7 +1017,6 @@ EXPORT_SYMBOL(free_irq); * Flags: * * IRQF_SHARED Interrupt is shared - * IRQF_DISABLED Disable local interrupts while processing * IRQF_SAMPLE_RANDOM The interrupt can be used for entropy * IRQF_TRIGGER_* Specify active edge(s) or level * @@ -1040,25 +1029,6 @@ int request_threaded_irq(unsigned int irq, irq_handler_t handler, struct irq_desc *desc; int retval; - /* - * handle_IRQ_event() always ignores IRQF_DISABLED except for - * the _first_ irqaction (sigh). That can cause oopsing, but - * the behavior is classified as "will not fix" so we need to - * start nudging drivers away from using that idiom. - */ - if ((irqflags & (IRQF_SHARED|IRQF_DISABLED)) == - (IRQF_SHARED|IRQF_DISABLED)) { - pr_warning( - "IRQ %d/%s: IRQF_DISABLED is not guaranteed on shared IRQs\n", - irq, devname); - } - -#ifdef CONFIG_LOCKDEP - /* - * Lockdep wants atomic interrupt handlers: - */ - irqflags |= IRQF_DISABLED; -#endif /* * Sanity-check: shared interrupts must pass in a real dev-ID, * otherwise we'll have trouble later trying to figure out -- cgit v1.2.3-70-g09d2 From fc0c195aa8877fd46d837c8c4a9a61386a124401 Mon Sep 17 00:00:00 2001 From: viresh kumar Date: Thu, 1 Apr 2010 12:31:21 +0100 Subject: ARM: 6018/1: ST SPEAr: Updated Maintainers and added Documentation/arm/SPEAr Reviewed-by: Linus Walleij Signed-off-by: Viresh Kumar Signed-off-by: Russell King --- Documentation/arm/00-INDEX | 2 ++ Documentation/arm/SPEAr/overview.txt | 60 ++++++++++++++++++++++++++++++++++++ MAINTAINERS | 40 ++++++++++++++++++++++++ 3 files changed, 102 insertions(+) create mode 100644 Documentation/arm/SPEAr/overview.txt (limited to 'Documentation') diff --git a/Documentation/arm/00-INDEX b/Documentation/arm/00-INDEX index 82e418d648d..7f5fc3ba9c9 100644 --- a/Documentation/arm/00-INDEX +++ b/Documentation/arm/00-INDEX @@ -20,6 +20,8 @@ Samsung-S3C24XX - S3C24XX ARM Linux Overview Sharp-LH - Linux on Sharp LH79524 and LH7A40X System On a Chip (SOC) +SPEAr + - ST SPEAr platform Linux Overview VFP/ - Release notes for Linux Kernel Vector Floating Point support code empeg/ diff --git a/Documentation/arm/SPEAr/overview.txt b/Documentation/arm/SPEAr/overview.txt new file mode 100644 index 00000000000..253a35c6f78 --- /dev/null +++ b/Documentation/arm/SPEAr/overview.txt @@ -0,0 +1,60 @@ + SPEAr ARM Linux Overview + ========================== + +Introduction +------------ + + SPEAr (Structured Processor Enhanced Architecture). + weblink : http://www.st.com/spear + + The ST Microelectronics SPEAr range of ARM9/CortexA9 System-on-Chip CPUs are + supported by the 'spear' platform of ARM Linux. Currently SPEAr300, + SPEAr310, SPEAr320 and SPEAr600 SOCs are supported. Support for the SPEAr13XX + series is in progress. + + Hierarchy in SPEAr is as follows: + + SPEAr (Platform) + - SPEAr3XX (3XX SOC series, based on ARM9) + - SPEAr300 (SOC) + - SPEAr300_EVB (Evaluation Board) + - SPEAr310 (SOC) + - SPEAr310_EVB (Evaluation Board) + - SPEAr320 (SOC) + - SPEAr320_EVB (Evaluation Board) + - SPEAr6XX (6XX SOC series, based on ARM9) + - SPEAr600 (SOC) + - SPEAr600_EVB (Evaluation Board) + - SPEAr13XX (13XX SOC series, based on ARM CORTEXA9) + - SPEAr1300 (SOC) + + Configuration + ------------- + + A generic configuration is provided for each machine, and can be used as the + default by + make spear600_defconfig + make spear300_defconfig + make spear310_defconfig + make spear320_defconfig + + Layout + ------ + + The common files for multiple machine families (SPEAr3XX, SPEAr6XX and + SPEAr13XX) are located in the platform code contained in arch/arm/plat-spear + with headers in plat/. + + Each machine series have a directory with name arch/arm/mach-spear followed by + series name. Like mach-spear3xx, mach-spear6xx and mach-spear13xx. + + Common file for machines of spear3xx family is mach-spear3xx/spear3xx.c and for + spear6xx is mach-spear6xx/spear6xx.c. mach-spear* also contain soc/machine + specific files, like spear300.c, spear310.c, spear320.c and spear600.c. + mach-spear* also contains board specific files for each machine type. + + + Document Author + --------------- + + Viresh Kumar, (c) 2010 ST Microelectronics diff --git a/MAINTAINERS b/MAINTAINERS index 382eaa4d006..aa18ca333f8 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5229,6 +5229,46 @@ F: drivers/serial/sunsu.c F: drivers/serial/sunzilog.c F: drivers/serial/sunzilog.h +SPEAR PLATFORM SUPPORT +M: Viresh Kumar +W: http://www.st.com/spear +S: Maintained +F: arch/arm/plat-spear/ + +SPEAR3XX MACHINE SUPPORT +M: Viresh Kumar +W: http://www.st.com/spear +S: Maintained +F: arch/arm/mach-spear3xx/ + +SPEAR6XX MACHINE SUPPORT +M: Rajeev Kumar +W: http://www.st.com/spear +S: Maintained +F: arch/arm/mach-spear6xx/ + +SPEAR CLOCK FRAMEWORK SUPPORT +M: Viresh Kumar +W: http://www.st.com/spear +S: Maintained +F: arch/arm/mach-spear*/clock.c +F: arch/arm/mach-spear*/include/mach/clkdev.h +F: arch/arm/plat-spear/clock.c +F: arch/arm/plat-spear/include/plat/clock.h and clkdev.h + +SPEAR PAD MULTIPLEXING SUPPORT +M: Viresh Kumar +W: http://www.st.com/spear +S: Maintained +F: arch/arm/plat-spear/include/plat/padmux.h +F: arch/arm/plat-spear/padmux.c +F: arch/arm/mach-spear*/spear*xx.c +F: arch/arm/mach-spear*/include/mach/generic.h +F: arch/arm/mach-spear3xx/spear3*0.c +F: arch/arm/mach-spear3xx/spear3*0_evb.c +F: arch/arm/mach-spear6xx/spear600.c +F: arch/arm/mach-spear6xx/spear600_evb.c + SPECIALIX IO8+ MULTIPORT SERIAL CARD DRIVER M: Roger Wolff S: Supported -- cgit v1.2.3-70-g09d2 From 93ccae7a2227466a0d071fe52c51319f2f34c365 Mon Sep 17 00:00:00 2001 From: Masami Hiramatsu Date: Mon, 12 Apr 2010 13:17:08 -0400 Subject: tracing/kprobes: Support basic types on dynamic events Support basic types of integer (u8, u16, u32, u64, s8, s16, s32, s64) in kprobe tracer. With this patch, users can specify above basic types on each arguments after ':'. If omitted, the argument type is set as unsigned long (u32 or u64, arch-dependent). e.g. echo 'p account_system_time+0 hardirq_offset=%si:s32' > kprobe_events adds a probe recording hardirq_offset in signed-32bits value on the entry of account_system_time. Cc: Ingo Molnar Cc: Steven Rostedt Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Mike Galbraith Cc: Frederic Weisbecker LKML-Reference: <20100412171708.3790.18599.stgit@localhost6.localdomain6> Signed-off-by: Masami Hiramatsu Signed-off-by: Arnaldo Carvalho de Melo --- Documentation/trace/kprobetrace.txt | 4 +- kernel/trace/trace.h | 16 +- kernel/trace/trace_kprobe.c | 535 ++++++++++++++++++++++-------------- 3 files changed, 334 insertions(+), 221 deletions(-) (limited to 'Documentation') diff --git a/Documentation/trace/kprobetrace.txt b/Documentation/trace/kprobetrace.txt index a9100b28eb8..ec94748ae65 100644 --- a/Documentation/trace/kprobetrace.txt +++ b/Documentation/trace/kprobetrace.txt @@ -40,7 +40,9 @@ Synopsis of kprobe_events $stack : Fetch stack address. $retval : Fetch return value.(*) +|-offs(FETCHARG) : Fetch memory at FETCHARG +|- offs address.(**) - NAME=FETCHARG: Set NAME as the argument name of FETCHARG. + NAME=FETCHARG : Set NAME as the argument name of FETCHARG. + FETCHARG:TYPE : Set TYPE as the type of FETCHARG. Currently, basic types + (u8/u16/u32/u64/s8/s16/s32/s64) are supported. (*) only for return probe. (**) this is useful for fetching a field of data structures. diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index bec2c973ff0..3ebdb6bd236 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -102,29 +102,17 @@ struct syscall_trace_exit { long ret; }; -struct kprobe_trace_entry { +struct kprobe_trace_entry_head { struct trace_entry ent; unsigned long ip; - int nargs; - unsigned long args[]; }; -#define SIZEOF_KPROBE_TRACE_ENTRY(n) \ - (offsetof(struct kprobe_trace_entry, args) + \ - (sizeof(unsigned long) * (n))) - -struct kretprobe_trace_entry { +struct kretprobe_trace_entry_head { struct trace_entry ent; unsigned long func; unsigned long ret_ip; - int nargs; - unsigned long args[]; }; -#define SIZEOF_KRETPROBE_TRACE_ENTRY(n) \ - (offsetof(struct kretprobe_trace_entry, args) + \ - (sizeof(unsigned long) * (n))) - /* * trace_flag_type is an enumeration that holds different * states when a trace occurs. These are: diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index 1251e367bae..a7514326052 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -29,6 +29,8 @@ #include #include #include +#include +#include #include "trace.h" #include "trace_output.h" @@ -40,7 +42,6 @@ /* Reserved field names */ #define FIELD_STRING_IP "__probe_ip" -#define FIELD_STRING_NARGS "__probe_nargs" #define FIELD_STRING_RETIP "__probe_ret_ip" #define FIELD_STRING_FUNC "__probe_func" @@ -52,56 +53,102 @@ const char *reserved_field_names[] = { "common_tgid", "common_lock_depth", FIELD_STRING_IP, - FIELD_STRING_NARGS, FIELD_STRING_RETIP, FIELD_STRING_FUNC, }; -struct fetch_func { - unsigned long (*func)(struct pt_regs *, void *); +/* Printing function type */ +typedef int (*print_type_func_t)(struct trace_seq *, const char *, void *); +#define PRINT_TYPE_FUNC_NAME(type) print_type_##type +#define PRINT_TYPE_FMT_NAME(type) print_type_format_##type + +/* Printing in basic type function template */ +#define DEFINE_BASIC_PRINT_TYPE_FUNC(type, fmt, cast) \ +static __kprobes int PRINT_TYPE_FUNC_NAME(type)(struct trace_seq *s, \ + const char *name, void *data)\ +{ \ + return trace_seq_printf(s, " %s=" fmt, name, (cast)*(type *)data);\ +} \ +static const char PRINT_TYPE_FMT_NAME(type)[] = fmt; + +DEFINE_BASIC_PRINT_TYPE_FUNC(u8, "%x", unsigned int) +DEFINE_BASIC_PRINT_TYPE_FUNC(u16, "%x", unsigned int) +DEFINE_BASIC_PRINT_TYPE_FUNC(u32, "%lx", unsigned long) +DEFINE_BASIC_PRINT_TYPE_FUNC(u64, "%llx", unsigned long long) +DEFINE_BASIC_PRINT_TYPE_FUNC(s8, "%d", int) +DEFINE_BASIC_PRINT_TYPE_FUNC(s16, "%d", int) +DEFINE_BASIC_PRINT_TYPE_FUNC(s32, "%ld", long) +DEFINE_BASIC_PRINT_TYPE_FUNC(s64, "%lld", long long) + +/* Data fetch function type */ +typedef void (*fetch_func_t)(struct pt_regs *, void *, void *); + +struct fetch_param { + fetch_func_t fn; void *data; }; -static __kprobes unsigned long call_fetch(struct fetch_func *f, - struct pt_regs *regs) +static __kprobes void call_fetch(struct fetch_param *fprm, + struct pt_regs *regs, void *dest) { - return f->func(regs, f->data); + return fprm->fn(regs, fprm->data, dest); } -/* fetch handlers */ -static __kprobes unsigned long fetch_register(struct pt_regs *regs, - void *offset) -{ - return regs_get_register(regs, (unsigned int)((unsigned long)offset)); +#define FETCH_FUNC_NAME(kind, type) fetch_##kind##_##type +/* + * Define macro for basic types - we don't need to define s* types, because + * we have to care only about bitwidth at recording time. + */ +#define DEFINE_BASIC_FETCH_FUNCS(kind) \ +DEFINE_FETCH_##kind(u8) \ +DEFINE_FETCH_##kind(u16) \ +DEFINE_FETCH_##kind(u32) \ +DEFINE_FETCH_##kind(u64) + +#define CHECK_BASIC_FETCH_FUNCS(kind, fn) \ + ((FETCH_FUNC_NAME(kind, u8) == fn) || \ + (FETCH_FUNC_NAME(kind, u16) == fn) || \ + (FETCH_FUNC_NAME(kind, u32) == fn) || \ + (FETCH_FUNC_NAME(kind, u64) == fn)) + +/* Data fetch function templates */ +#define DEFINE_FETCH_reg(type) \ +static __kprobes void FETCH_FUNC_NAME(reg, type)(struct pt_regs *regs, \ + void *offset, void *dest) \ +{ \ + *(type *)dest = (type)regs_get_register(regs, \ + (unsigned int)((unsigned long)offset)); \ } - -static __kprobes unsigned long fetch_stack(struct pt_regs *regs, - void *num) -{ - return regs_get_kernel_stack_nth(regs, - (unsigned int)((unsigned long)num)); +DEFINE_BASIC_FETCH_FUNCS(reg) + +#define DEFINE_FETCH_stack(type) \ +static __kprobes void FETCH_FUNC_NAME(stack, type)(struct pt_regs *regs,\ + void *offset, void *dest) \ +{ \ + *(type *)dest = (type)regs_get_kernel_stack_nth(regs, \ + (unsigned int)((unsigned long)offset)); \ } +DEFINE_BASIC_FETCH_FUNCS(stack) -static __kprobes unsigned long fetch_memory(struct pt_regs *regs, void *addr) -{ - unsigned long retval; - - if (probe_kernel_address(addr, retval)) - return 0; - return retval; +#define DEFINE_FETCH_retval(type) \ +static __kprobes void FETCH_FUNC_NAME(retval, type)(struct pt_regs *regs,\ + void *dummy, void *dest) \ +{ \ + *(type *)dest = (type)regs_return_value(regs); \ } - -static __kprobes unsigned long fetch_retvalue(struct pt_regs *regs, - void *dummy) -{ - return regs_return_value(regs); -} - -static __kprobes unsigned long fetch_stack_address(struct pt_regs *regs, - void *dummy) -{ - return kernel_stack_pointer(regs); +DEFINE_BASIC_FETCH_FUNCS(retval) + +#define DEFINE_FETCH_memory(type) \ +static __kprobes void FETCH_FUNC_NAME(memory, type)(struct pt_regs *regs,\ + void *addr, void *dest) \ +{ \ + type retval; \ + if (probe_kernel_address(addr, retval)) \ + *(type *)dest = 0; \ + else \ + *(type *)dest = retval; \ } +DEFINE_BASIC_FETCH_FUNCS(memory) /* Memory fetching by symbol */ struct symbol_cache { @@ -145,51 +192,126 @@ static struct symbol_cache *alloc_symbol_cache(const char *sym, long offset) return sc; } -static __kprobes unsigned long fetch_symbol(struct pt_regs *regs, void *data) -{ - struct symbol_cache *sc = data; - - if (sc->addr) - return fetch_memory(regs, (void *)sc->addr); - else - return 0; +#define DEFINE_FETCH_symbol(type) \ +static __kprobes void FETCH_FUNC_NAME(symbol, type)(struct pt_regs *regs,\ + void *data, void *dest) \ +{ \ + struct symbol_cache *sc = data; \ + if (sc->addr) \ + fetch_memory_##type(regs, (void *)sc->addr, dest); \ + else \ + *(type *)dest = 0; \ } +DEFINE_BASIC_FETCH_FUNCS(symbol) -/* Special indirect memory access interface */ -struct indirect_fetch_data { - struct fetch_func orig; +/* Dereference memory access function */ +struct deref_fetch_param { + struct fetch_param orig; long offset; }; -static __kprobes unsigned long fetch_indirect(struct pt_regs *regs, void *data) -{ - struct indirect_fetch_data *ind = data; - unsigned long addr; - - addr = call_fetch(&ind->orig, regs); - if (addr) { - addr += ind->offset; - return fetch_memory(regs, (void *)addr); - } else - return 0; +#define DEFINE_FETCH_deref(type) \ +static __kprobes void FETCH_FUNC_NAME(deref, type)(struct pt_regs *regs,\ + void *data, void *dest) \ +{ \ + struct deref_fetch_param *dprm = data; \ + unsigned long addr; \ + call_fetch(&dprm->orig, regs, &addr); \ + if (addr) { \ + addr += dprm->offset; \ + fetch_memory_##type(regs, (void *)addr, dest); \ + } else \ + *(type *)dest = 0; \ } +DEFINE_BASIC_FETCH_FUNCS(deref) -static __kprobes void free_indirect_fetch_data(struct indirect_fetch_data *data) +static __kprobes void free_deref_fetch_param(struct deref_fetch_param *data) { - if (data->orig.func == fetch_indirect) - free_indirect_fetch_data(data->orig.data); - else if (data->orig.func == fetch_symbol) + if (CHECK_BASIC_FETCH_FUNCS(deref, data->orig.fn)) + free_deref_fetch_param(data->orig.data); + else if (CHECK_BASIC_FETCH_FUNCS(symbol, data->orig.fn)) free_symbol_cache(data->orig.data); kfree(data); } +/* Default (unsigned long) fetch type */ +#define __DEFAULT_FETCH_TYPE(t) u##t +#define _DEFAULT_FETCH_TYPE(t) __DEFAULT_FETCH_TYPE(t) +#define DEFAULT_FETCH_TYPE _DEFAULT_FETCH_TYPE(BITS_PER_LONG) +#define DEFAULT_FETCH_TYPE_STR __stringify(DEFAULT_FETCH_TYPE) + +#define ASSIGN_FETCH_FUNC(kind, type) \ + .kind = FETCH_FUNC_NAME(kind, type) + +#define ASSIGN_FETCH_TYPE(ptype, ftype, sign) \ + {.name = #ptype, \ + .size = sizeof(ftype), \ + .is_signed = sign, \ + .print = PRINT_TYPE_FUNC_NAME(ptype), \ + .fmt = PRINT_TYPE_FMT_NAME(ptype), \ +ASSIGN_FETCH_FUNC(reg, ftype), \ +ASSIGN_FETCH_FUNC(stack, ftype), \ +ASSIGN_FETCH_FUNC(retval, ftype), \ +ASSIGN_FETCH_FUNC(memory, ftype), \ +ASSIGN_FETCH_FUNC(symbol, ftype), \ +ASSIGN_FETCH_FUNC(deref, ftype), \ + } + +/* Fetch type information table */ +static const struct fetch_type { + const char *name; /* Name of type */ + size_t size; /* Byte size of type */ + int is_signed; /* Signed flag */ + print_type_func_t print; /* Print functions */ + const char *fmt; /* Fromat string */ + /* Fetch functions */ + fetch_func_t reg; + fetch_func_t stack; + fetch_func_t retval; + fetch_func_t memory; + fetch_func_t symbol; + fetch_func_t deref; +} fetch_type_table[] = { + ASSIGN_FETCH_TYPE(u8, u8, 0), + ASSIGN_FETCH_TYPE(u16, u16, 0), + ASSIGN_FETCH_TYPE(u32, u32, 0), + ASSIGN_FETCH_TYPE(u64, u64, 0), + ASSIGN_FETCH_TYPE(s8, u8, 1), + ASSIGN_FETCH_TYPE(s16, u16, 1), + ASSIGN_FETCH_TYPE(s32, u32, 1), + ASSIGN_FETCH_TYPE(s64, u64, 1), +}; + +static const struct fetch_type *find_fetch_type(const char *type) +{ + int i; + + if (!type) + type = DEFAULT_FETCH_TYPE_STR; + + for (i = 0; i < ARRAY_SIZE(fetch_type_table); i++) + if (strcmp(type, fetch_type_table[i].name) == 0) + return &fetch_type_table[i]; + return NULL; +} + +/* Special function : only accept unsigned long */ +static __kprobes void fetch_stack_address(struct pt_regs *regs, + void *dummy, void *dest) +{ + *(unsigned long *)dest = kernel_stack_pointer(regs); +} + /** * Kprobe event core functions */ struct probe_arg { - struct fetch_func fetch; - const char *name; + struct fetch_param fetch; + unsigned int offset; /* Offset from argument entry */ + const char *name; /* Name of this argument */ + const char *comm; /* Command of this argument */ + const struct fetch_type *type; /* Type of this argument */ }; /* Flags for trace_probe */ @@ -204,6 +326,7 @@ struct trace_probe { const char *symbol; /* symbol name */ struct ftrace_event_call call; struct trace_event event; + ssize_t size; /* trace entry size */ unsigned int nr_args; struct probe_arg args[]; }; @@ -212,6 +335,7 @@ struct trace_probe { (offsetof(struct trace_probe, args) + \ (sizeof(struct probe_arg) * (n))) + static __kprobes int probe_is_return(struct trace_probe *tp) { return tp->rp.handler != NULL; @@ -222,49 +346,6 @@ static __kprobes const char *probe_symbol(struct trace_probe *tp) return tp->symbol ? tp->symbol : "unknown"; } -static int probe_arg_string(char *buf, size_t n, struct fetch_func *ff) -{ - int ret = -EINVAL; - - if (ff->func == fetch_register) { - const char *name; - name = regs_query_register_name((unsigned int)((long)ff->data)); - ret = snprintf(buf, n, "%%%s", name); - } else if (ff->func == fetch_stack) - ret = snprintf(buf, n, "$stack%lu", (unsigned long)ff->data); - else if (ff->func == fetch_memory) - ret = snprintf(buf, n, "@0x%p", ff->data); - else if (ff->func == fetch_symbol) { - struct symbol_cache *sc = ff->data; - if (sc->offset) - ret = snprintf(buf, n, "@%s%+ld", sc->symbol, - sc->offset); - else - ret = snprintf(buf, n, "@%s", sc->symbol); - } else if (ff->func == fetch_retvalue) - ret = snprintf(buf, n, "$retval"); - else if (ff->func == fetch_stack_address) - ret = snprintf(buf, n, "$stack"); - else if (ff->func == fetch_indirect) { - struct indirect_fetch_data *id = ff->data; - size_t l = 0; - ret = snprintf(buf, n, "%+ld(", id->offset); - if (ret >= n) - goto end; - l += ret; - ret = probe_arg_string(buf + l, n - l, &id->orig); - if (ret < 0) - goto end; - l += ret; - ret = snprintf(buf + l, n - l, ")"); - ret += l; - } -end: - if (ret >= n) - return -ENOSPC; - return ret; -} - static int register_probe_event(struct trace_probe *tp); static void unregister_probe_event(struct trace_probe *tp); @@ -347,11 +428,12 @@ error: static void free_probe_arg(struct probe_arg *arg) { - if (arg->fetch.func == fetch_symbol) + if (CHECK_BASIC_FETCH_FUNCS(deref, arg->fetch.fn)) + free_deref_fetch_param(arg->fetch.data); + else if (CHECK_BASIC_FETCH_FUNCS(symbol, arg->fetch.fn)) free_symbol_cache(arg->fetch.data); - else if (arg->fetch.func == fetch_indirect) - free_indirect_fetch_data(arg->fetch.data); kfree(arg->name); + kfree(arg->comm); } static void free_trace_probe(struct trace_probe *tp) @@ -457,28 +539,30 @@ static int split_symbol_offset(char *symbol, unsigned long *offset) #define PARAM_MAX_ARGS 16 #define PARAM_MAX_STACK (THREAD_SIZE / sizeof(unsigned long)) -static int parse_probe_vars(char *arg, struct fetch_func *ff, int is_return) +static int parse_probe_vars(char *arg, const struct fetch_type *t, + struct fetch_param *f, int is_return) { int ret = 0; unsigned long param; if (strcmp(arg, "retval") == 0) { - if (is_return) { - ff->func = fetch_retvalue; - ff->data = NULL; - } else + if (is_return) + f->fn = t->retval; + else ret = -EINVAL; } else if (strncmp(arg, "stack", 5) == 0) { if (arg[5] == '\0') { - ff->func = fetch_stack_address; - ff->data = NULL; + if (strcmp(t->name, DEFAULT_FETCH_TYPE_STR) == 0) + f->fn = fetch_stack_address; + else + ret = -EINVAL; } else if (isdigit(arg[5])) { ret = strict_strtoul(arg + 5, 10, ¶m); if (ret || param > PARAM_MAX_STACK) ret = -EINVAL; else { - ff->func = fetch_stack; - ff->data = (void *)param; + f->fn = t->stack; + f->data = (void *)param; } } else ret = -EINVAL; @@ -488,7 +572,8 @@ static int parse_probe_vars(char *arg, struct fetch_func *ff, int is_return) } /* Recursive argument parser */ -static int __parse_probe_arg(char *arg, struct fetch_func *ff, int is_return) +static int __parse_probe_arg(char *arg, const struct fetch_type *t, + struct fetch_param *f, int is_return) { int ret = 0; unsigned long param; @@ -497,13 +582,13 @@ static int __parse_probe_arg(char *arg, struct fetch_func *ff, int is_return) switch (arg[0]) { case '$': - ret = parse_probe_vars(arg + 1, ff, is_return); + ret = parse_probe_vars(arg + 1, t, f, is_return); break; case '%': /* named register */ ret = regs_query_register_offset(arg + 1); if (ret >= 0) { - ff->func = fetch_register; - ff->data = (void *)(unsigned long)ret; + f->fn = t->reg; + f->data = (void *)(unsigned long)ret; ret = 0; } break; @@ -512,26 +597,22 @@ static int __parse_probe_arg(char *arg, struct fetch_func *ff, int is_return) ret = strict_strtoul(arg + 1, 0, ¶m); if (ret) break; - ff->func = fetch_memory; - ff->data = (void *)param; + f->fn = t->memory; + f->data = (void *)param; } else { ret = split_symbol_offset(arg + 1, &offset); if (ret) break; - ff->data = alloc_symbol_cache(arg + 1, offset); - if (ff->data) - ff->func = fetch_symbol; - else - ret = -EINVAL; + f->data = alloc_symbol_cache(arg + 1, offset); + if (f->data) + f->fn = t->symbol; } break; - case '+': /* indirect memory */ + case '+': /* deref memory */ case '-': tmp = strchr(arg, '('); - if (!tmp) { - ret = -EINVAL; + if (!tmp) break; - } *tmp = '\0'; ret = strict_strtol(arg + 1, 0, &offset); if (ret) @@ -541,38 +622,58 @@ static int __parse_probe_arg(char *arg, struct fetch_func *ff, int is_return) arg = tmp + 1; tmp = strrchr(arg, ')'); if (tmp) { - struct indirect_fetch_data *id; + struct deref_fetch_param *dprm; + const struct fetch_type *t2 = find_fetch_type(NULL); *tmp = '\0'; - id = kzalloc(sizeof(struct indirect_fetch_data), - GFP_KERNEL); - if (!id) + dprm = kzalloc(sizeof(struct deref_fetch_param), + GFP_KERNEL); + if (!dprm) return -ENOMEM; - id->offset = offset; - ret = __parse_probe_arg(arg, &id->orig, is_return); + dprm->offset = offset; + ret = __parse_probe_arg(arg, t2, &dprm->orig, + is_return); if (ret) - kfree(id); + kfree(dprm); else { - ff->func = fetch_indirect; - ff->data = (void *)id; + f->fn = t->deref; + f->data = (void *)dprm; } - } else - ret = -EINVAL; + } break; - default: - /* TODO: support custom handler */ - ret = -EINVAL; } + if (!ret && !f->fn) + ret = -EINVAL; return ret; } /* String length checking wrapper */ -static int parse_probe_arg(char *arg, struct fetch_func *ff, int is_return) +static int parse_probe_arg(char *arg, struct trace_probe *tp, + struct probe_arg *parg, int is_return) { + const char *t; + if (strlen(arg) > MAX_ARGSTR_LEN) { pr_info("Argument is too long.: %s\n", arg); return -ENOSPC; } - return __parse_probe_arg(arg, ff, is_return); + parg->comm = kstrdup(arg, GFP_KERNEL); + if (!parg->comm) { + pr_info("Failed to allocate memory for command '%s'.\n", arg); + return -ENOMEM; + } + t = strchr(parg->comm, ':'); + if (t) { + arg[t - parg->comm] = '\0'; + t++; + } + parg->type = find_fetch_type(t); + if (!parg->type) { + pr_info("Unsupported type: %s\n", t); + return -EINVAL; + } + parg->offset = tp->size; + tp->size += parg->type->size; + return __parse_probe_arg(arg, parg->type, &parg->fetch, is_return); } /* Return 1 if name is reserved or already used by another argument */ @@ -602,15 +703,18 @@ static int create_trace_probe(int argc, char **argv) * @ADDR : fetch memory at ADDR (ADDR should be in kernel) * @SYM[+|-offs] : fetch memory at SYM +|- offs (SYM is a data symbol) * %REG : fetch register REG - * Indirect memory fetch: + * Dereferencing memory fetch: * +|-offs(ARG) : fetch memory at ARG +|- offs address. * Alias name of args: * NAME=FETCHARG : set NAME as alias of FETCHARG. + * Type of args: + * FETCHARG:TYPE : use TYPE instead of unsigned long. */ struct trace_probe *tp; int i, ret = 0; int is_return = 0, is_delete = 0; - char *symbol = NULL, *event = NULL, *arg = NULL, *group = NULL; + char *symbol = NULL, *event = NULL, *group = NULL; + char *arg, *tmp; unsigned long offset = 0; void *addr = NULL; char buf[MAX_EVENT_NAME_LEN]; @@ -723,13 +827,6 @@ static int create_trace_probe(int argc, char **argv) else arg = argv[i]; - if (conflict_field_name(argv[i], tp->args, i)) { - pr_info("Argument%d name '%s' conflicts with " - "another field.\n", i, argv[i]); - ret = -EINVAL; - goto error; - } - tp->args[i].name = kstrdup(argv[i], GFP_KERNEL); if (!tp->args[i].name) { pr_info("Failed to allocate argument%d name '%s'.\n", @@ -737,9 +834,19 @@ static int create_trace_probe(int argc, char **argv) ret = -ENOMEM; goto error; } + tmp = strchr(tp->args[i].name, ':'); + if (tmp) + *tmp = '_'; /* convert : to _ */ + + if (conflict_field_name(tp->args[i].name, tp->args, i)) { + pr_info("Argument%d name '%s' conflicts with " + "another field.\n", i, argv[i]); + ret = -EINVAL; + goto error; + } /* Parse fetch argument */ - ret = parse_probe_arg(arg, &tp->args[i].fetch, is_return); + ret = parse_probe_arg(arg, tp, &tp->args[i], is_return); if (ret) { pr_info("Parse error at argument%d. (%d)\n", i, ret); kfree(tp->args[i].name); @@ -794,8 +901,7 @@ static void probes_seq_stop(struct seq_file *m, void *v) static int probes_seq_show(struct seq_file *m, void *v) { struct trace_probe *tp = v; - int i, ret; - char buf[MAX_ARGSTR_LEN + 1]; + int i; seq_printf(m, "%c", probe_is_return(tp) ? 'r' : 'p'); seq_printf(m, ":%s/%s", tp->call.system, tp->call.name); @@ -807,15 +913,10 @@ static int probes_seq_show(struct seq_file *m, void *v) else seq_printf(m, " %s", probe_symbol(tp)); - for (i = 0; i < tp->nr_args; i++) { - ret = probe_arg_string(buf, MAX_ARGSTR_LEN, &tp->args[i].fetch); - if (ret < 0) { - pr_warning("Argument%d decoding error(%d).\n", i, ret); - return ret; - } - seq_printf(m, " %s=%s", tp->args[i].name, buf); - } + for (i = 0; i < tp->nr_args; i++) + seq_printf(m, " %s=%s", tp->args[i].name, tp->args[i].comm); seq_printf(m, "\n"); + return 0; } @@ -945,9 +1046,10 @@ static const struct file_operations kprobe_profile_ops = { static __kprobes void kprobe_trace_func(struct kprobe *kp, struct pt_regs *regs) { struct trace_probe *tp = container_of(kp, struct trace_probe, rp.kp); - struct kprobe_trace_entry *entry; + struct kprobe_trace_entry_head *entry; struct ring_buffer_event *event; struct ring_buffer *buffer; + u8 *data; int size, i, pc; unsigned long irq_flags; struct ftrace_event_call *call = &tp->call; @@ -957,7 +1059,7 @@ static __kprobes void kprobe_trace_func(struct kprobe *kp, struct pt_regs *regs) local_save_flags(irq_flags); pc = preempt_count(); - size = SIZEOF_KPROBE_TRACE_ENTRY(tp->nr_args); + size = sizeof(*entry) + tp->size; event = trace_current_buffer_lock_reserve(&buffer, call->id, size, irq_flags, pc); @@ -965,10 +1067,10 @@ static __kprobes void kprobe_trace_func(struct kprobe *kp, struct pt_regs *regs) return; entry = ring_buffer_event_data(event); - entry->nargs = tp->nr_args; entry->ip = (unsigned long)kp->addr; + data = (u8 *)&entry[1]; for (i = 0; i < tp->nr_args; i++) - entry->args[i] = call_fetch(&tp->args[i].fetch, regs); + call_fetch(&tp->args[i].fetch, regs, data + tp->args[i].offset); if (!filter_current_check_discard(buffer, call, entry, event)) trace_nowake_buffer_unlock_commit(buffer, event, irq_flags, pc); @@ -979,9 +1081,10 @@ static __kprobes void kretprobe_trace_func(struct kretprobe_instance *ri, struct pt_regs *regs) { struct trace_probe *tp = container_of(ri->rp, struct trace_probe, rp); - struct kretprobe_trace_entry *entry; + struct kretprobe_trace_entry_head *entry; struct ring_buffer_event *event; struct ring_buffer *buffer; + u8 *data; int size, i, pc; unsigned long irq_flags; struct ftrace_event_call *call = &tp->call; @@ -989,7 +1092,7 @@ static __kprobes void kretprobe_trace_func(struct kretprobe_instance *ri, local_save_flags(irq_flags); pc = preempt_count(); - size = SIZEOF_KRETPROBE_TRACE_ENTRY(tp->nr_args); + size = sizeof(*entry) + tp->size; event = trace_current_buffer_lock_reserve(&buffer, call->id, size, irq_flags, pc); @@ -997,11 +1100,11 @@ static __kprobes void kretprobe_trace_func(struct kretprobe_instance *ri, return; entry = ring_buffer_event_data(event); - entry->nargs = tp->nr_args; entry->func = (unsigned long)tp->rp.kp.addr; entry->ret_ip = (unsigned long)ri->ret_addr; + data = (u8 *)&entry[1]; for (i = 0; i < tp->nr_args; i++) - entry->args[i] = call_fetch(&tp->args[i].fetch, regs); + call_fetch(&tp->args[i].fetch, regs, data + tp->args[i].offset); if (!filter_current_check_discard(buffer, call, entry, event)) trace_nowake_buffer_unlock_commit(buffer, event, irq_flags, pc); @@ -1011,13 +1114,14 @@ static __kprobes void kretprobe_trace_func(struct kretprobe_instance *ri, enum print_line_t print_kprobe_event(struct trace_iterator *iter, int flags) { - struct kprobe_trace_entry *field; + struct kprobe_trace_entry_head *field; struct trace_seq *s = &iter->seq; struct trace_event *event; struct trace_probe *tp; + u8 *data; int i; - field = (struct kprobe_trace_entry *)iter->ent; + field = (struct kprobe_trace_entry_head *)iter->ent; event = ftrace_find_event(field->ent.type); tp = container_of(event, struct trace_probe, event); @@ -1030,9 +1134,10 @@ print_kprobe_event(struct trace_iterator *iter, int flags) if (!trace_seq_puts(s, ")")) goto partial; - for (i = 0; i < field->nargs; i++) - if (!trace_seq_printf(s, " %s=%lx", - tp->args[i].name, field->args[i])) + data = (u8 *)&field[1]; + for (i = 0; i < tp->nr_args; i++) + if (!tp->args[i].type->print(s, tp->args[i].name, + data + tp->args[i].offset)) goto partial; if (!trace_seq_puts(s, "\n")) @@ -1046,13 +1151,14 @@ partial: enum print_line_t print_kretprobe_event(struct trace_iterator *iter, int flags) { - struct kretprobe_trace_entry *field; + struct kretprobe_trace_entry_head *field; struct trace_seq *s = &iter->seq; struct trace_event *event; struct trace_probe *tp; + u8 *data; int i; - field = (struct kretprobe_trace_entry *)iter->ent; + field = (struct kretprobe_trace_entry_head *)iter->ent; event = ftrace_find_event(field->ent.type); tp = container_of(event, struct trace_probe, event); @@ -1071,9 +1177,10 @@ print_kretprobe_event(struct trace_iterator *iter, int flags) if (!trace_seq_puts(s, ")")) goto partial; - for (i = 0; i < field->nargs; i++) - if (!trace_seq_printf(s, " %s=%lx", - tp->args[i].name, field->args[i])) + data = (u8 *)&field[1]; + for (i = 0; i < tp->nr_args; i++) + if (!tp->args[i].type->print(s, tp->args[i].name, + data + tp->args[i].offset)) goto partial; if (!trace_seq_puts(s, "\n")) @@ -1129,29 +1236,43 @@ static int probe_event_raw_init(struct ftrace_event_call *event_call) static int kprobe_event_define_fields(struct ftrace_event_call *event_call) { int ret, i; - struct kprobe_trace_entry field; + struct kprobe_trace_entry_head field; struct trace_probe *tp = (struct trace_probe *)event_call->data; DEFINE_FIELD(unsigned long, ip, FIELD_STRING_IP, 0); - DEFINE_FIELD(int, nargs, FIELD_STRING_NARGS, 1); /* Set argument names as fields */ - for (i = 0; i < tp->nr_args; i++) - DEFINE_FIELD(unsigned long, args[i], tp->args[i].name, 0); + for (i = 0; i < tp->nr_args; i++) { + ret = trace_define_field(event_call, tp->args[i].type->name, + tp->args[i].name, + sizeof(field) + tp->args[i].offset, + tp->args[i].type->size, + tp->args[i].type->is_signed, + FILTER_OTHER); + if (ret) + return ret; + } return 0; } static int kretprobe_event_define_fields(struct ftrace_event_call *event_call) { int ret, i; - struct kretprobe_trace_entry field; + struct kretprobe_trace_entry_head field; struct trace_probe *tp = (struct trace_probe *)event_call->data; DEFINE_FIELD(unsigned long, func, FIELD_STRING_FUNC, 0); DEFINE_FIELD(unsigned long, ret_ip, FIELD_STRING_RETIP, 0); - DEFINE_FIELD(int, nargs, FIELD_STRING_NARGS, 1); /* Set argument names as fields */ - for (i = 0; i < tp->nr_args; i++) - DEFINE_FIELD(unsigned long, args[i], tp->args[i].name, 0); + for (i = 0; i < tp->nr_args; i++) { + ret = trace_define_field(event_call, tp->args[i].type->name, + tp->args[i].name, + sizeof(field) + tp->args[i].offset, + tp->args[i].type->size, + tp->args[i].type->is_signed, + FILTER_OTHER); + if (ret) + return ret; + } return 0; } @@ -1176,8 +1297,8 @@ static int __set_print_fmt(struct trace_probe *tp, char *buf, int len) pos += snprintf(buf + pos, LEN_OR_ZERO, "\"%s", fmt); for (i = 0; i < tp->nr_args; i++) { - pos += snprintf(buf + pos, LEN_OR_ZERO, " %s=%%lx", - tp->args[i].name); + pos += snprintf(buf + pos, LEN_OR_ZERO, " %s=%s", + tp->args[i].name, tp->args[i].type->fmt); } pos += snprintf(buf + pos, LEN_OR_ZERO, "\", %s", arg); @@ -1219,12 +1340,13 @@ static __kprobes void kprobe_perf_func(struct kprobe *kp, { struct trace_probe *tp = container_of(kp, struct trace_probe, rp.kp); struct ftrace_event_call *call = &tp->call; - struct kprobe_trace_entry *entry; + struct kprobe_trace_entry_head *entry; + u8 *data; int size, __size, i; unsigned long irq_flags; int rctx; - __size = SIZEOF_KPROBE_TRACE_ENTRY(tp->nr_args); + __size = sizeof(*entry) + tp->size; size = ALIGN(__size + sizeof(u32), sizeof(u64)); size -= sizeof(u32); if (WARN_ONCE(size > PERF_MAX_TRACE_SIZE, @@ -1235,10 +1357,10 @@ static __kprobes void kprobe_perf_func(struct kprobe *kp, if (!entry) return; - entry->nargs = tp->nr_args; entry->ip = (unsigned long)kp->addr; + data = (u8 *)&entry[1]; for (i = 0; i < tp->nr_args; i++) - entry->args[i] = call_fetch(&tp->args[i].fetch, regs); + call_fetch(&tp->args[i].fetch, regs, data + tp->args[i].offset); perf_trace_buf_submit(entry, size, rctx, entry->ip, 1, irq_flags, regs); } @@ -1249,12 +1371,13 @@ static __kprobes void kretprobe_perf_func(struct kretprobe_instance *ri, { struct trace_probe *tp = container_of(ri->rp, struct trace_probe, rp); struct ftrace_event_call *call = &tp->call; - struct kretprobe_trace_entry *entry; + struct kretprobe_trace_entry_head *entry; + u8 *data; int size, __size, i; unsigned long irq_flags; int rctx; - __size = SIZEOF_KRETPROBE_TRACE_ENTRY(tp->nr_args); + __size = sizeof(*entry) + tp->size; size = ALIGN(__size + sizeof(u32), sizeof(u64)); size -= sizeof(u32); if (WARN_ONCE(size > PERF_MAX_TRACE_SIZE, @@ -1265,11 +1388,11 @@ static __kprobes void kretprobe_perf_func(struct kretprobe_instance *ri, if (!entry) return; - entry->nargs = tp->nr_args; entry->func = (unsigned long)tp->rp.kp.addr; entry->ret_ip = (unsigned long)ri->ret_addr; + data = (u8 *)&entry[1]; for (i = 0; i < tp->nr_args; i++) - entry->args[i] = call_fetch(&tp->args[i].fetch, regs); + call_fetch(&tp->args[i].fetch, regs, data + tp->args[i].offset); perf_trace_buf_submit(entry, size, rctx, entry->ret_ip, 1, irq_flags, regs); -- cgit v1.2.3-70-g09d2 From aa2110cb1a7510f9b834adfb39b05d4843a35d35 Mon Sep 17 00:00:00 2001 From: Lin Ming Date: Thu, 8 Apr 2010 14:34:27 +0800 Subject: ACPI: add boot option acpi=copy_dsdt to fix corrupt DSDT Some BIOS on Toshiba machines corrupt the DSDT, so add a new boot option acpi=copy_dsdt to workaround it. Add warning message to ask users to use this option if corrupt DSDT detected. Also build a DMI blacklist to check it and automatically copy DSDT. https://bugzilla.kernel.org/show_bug.cgi?id=14679 Signed-off-by: Lin Ming Signed-off-by: Len Brown --- Documentation/kernel-parameters.txt | 1 + arch/x86/kernel/acpi/boot.c | 4 ++++ drivers/acpi/acpica/tbutils.c | 4 ++++ drivers/acpi/bus.c | 37 +++++++++++++++++++++++++++++++++++++ 4 files changed, 46 insertions(+) (limited to 'Documentation') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index e2202e93b14..93f113a1b32 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -151,6 +151,7 @@ and is between 256 and 4096 characters. It is defined in the file strict -- Be less tolerant of platforms that are not strictly ACPI specification compliant. rsdt -- prefer RSDT over (default) XSDT + copy_dsdt -- copy DSDT to memory See also Documentation/power/pm.txt, pci=noacpi diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index cd40aba6aa9..b9629384263 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -1576,6 +1576,10 @@ static int __init parse_acpi(char *arg) /* "acpi=noirq" disables ACPI interrupt routing */ else if (strcmp(arg, "noirq") == 0) { acpi_noirq_set(); + } + /* "acpi=copy_dsdt" copys DSDT */ + else if (strcmp(arg, "copy_dsdt") == 0) { + acpi_gbl_copy_dsdt_locally = 1; } else { /* Core will printk when we return error. */ return -EINVAL; diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c index 54a8712bae6..a9b105fc2e5 100644 --- a/drivers/acpi/acpica/tbutils.c +++ b/drivers/acpi/acpica/tbutils.c @@ -373,6 +373,10 @@ void acpi_tb_check_dsdt_header(void) acpi_tb_print_table_header(0, &acpi_gbl_original_dsdt_header); acpi_tb_print_table_header(0, acpi_gbl_DSDT); + ACPI_ERROR((AE_INFO, + "Please send DMI info to linux-acpi@vger.kernel.org\n" + "If system does not work as expected, please boot with acpi=copy_dsdt")); + /* Disable further error messages */ acpi_gbl_original_dsdt_header.length = acpi_gbl_DSDT->length; diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 37132dc2da0..49af19bb8c9 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -69,6 +69,37 @@ static struct dmi_system_id __cpuinitdata power_nocheck_dmi_table[] = { }; +static int set_copy_dsdt(const struct dmi_system_id *id) +{ + printk(KERN_NOTICE "%s detected - " + "force copy of DSDT to local memory\n", id->ident); + acpi_gbl_copy_dsdt_locally = 1; + return 0; +} + +static struct dmi_system_id dsdt_dmi_table[] __initdata = { + /* + * Insyde BIOS on some TOSHIBA machines corrupt the DSDT. + * https://bugzilla.kernel.org/show_bug.cgi?id=14679 + */ + { + .callback = set_copy_dsdt, + .ident = "TOSHIBA Satellite A505", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A505"), + }, + }, + { + .callback = set_copy_dsdt, + .ident = "TOSHIBA Satellite L505D", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "Satellite L505D"), + }, + } +}; + /* -------------------------------------------------------------------------- Device Management -------------------------------------------------------------------------- */ @@ -813,6 +844,12 @@ void __init acpi_early_init(void) acpi_gbl_permanent_mmap = 1; + /* + * If the machine falls into the DMI check table, + * DSDT will be copied to memory + */ + dmi_check_system(dsdt_dmi_table); + status = acpi_reallocate_root_table(); if (ACPI_FAILURE(status)) { printk(KERN_ERR PREFIX -- cgit v1.2.3-70-g09d2 From 2d2ef822758e3f5da59c40a392d0c6d89394d4b4 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Mon, 26 Oct 2009 13:06:31 -0700 Subject: drm: add initial DRM developer documentation Add a DRM DocBook providing basic information about DRM interfaces, including TTM, GEM, KMS and vblank infrastructure. Intended to provide information to new and existing developers about how to perform driver initialization, implement mode setting and other DRM features. Signed-off-by: Jesse Barnes Signed-off-by: Dave Airlie --- Documentation/DocBook/Makefile | 2 +- Documentation/DocBook/drm.tmpl | 839 +++++++++++++++++++++++++++++++++++++++++ 2 files changed, 840 insertions(+), 1 deletion(-) create mode 100644 Documentation/DocBook/drm.tmpl (limited to 'Documentation') diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile index 325cfd1d6d9..c7e5dc7e8cb 100644 --- a/Documentation/DocBook/Makefile +++ b/Documentation/DocBook/Makefile @@ -14,7 +14,7 @@ DOCBOOKS := z8530book.xml mcabook.xml device-drivers.xml \ genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \ mac80211.xml debugobjects.xml sh.xml regulator.xml \ alsa-driver-api.xml writing-an-alsa-driver.xml \ - tracepoint.xml media.xml + tracepoint.xml media.xml drm.xml ### # The build process is as follows (targets): diff --git a/Documentation/DocBook/drm.tmpl b/Documentation/DocBook/drm.tmpl new file mode 100644 index 00000000000..7583dc7cf64 --- /dev/null +++ b/Documentation/DocBook/drm.tmpl @@ -0,0 +1,839 @@ + + + + + + Linux DRM Developer's Guide + + + 2008-2009 + + Intel Corporation (Jesse Barnes <jesse.barnes@intel.com>) + + + + + + The contents of this file may be used under the terms of the GNU + General Public License version 2 (the "GPL") as distributed in + the kernel source COPYING file. + + + + + + + + + + Introduction + + The Linux DRM layer contains code intended to support the needs + of complex graphics devices, usually containing programmable + pipelines well suited to 3D graphics acceleration. Graphics + drivers in the kernel can make use of DRM functions to make + tasks like memory management, interrupt handling and DMA easier, + and provide a uniform interface to applications. + + + A note on versions: this guide covers features found in the DRM + tree, including the TTM memory manager, output configuration and + mode setting, and the new vblank internals, in addition to all + the regular features found in current kernels. + + + [Insert diagram of typical DRM stack here] + + + + + + + DRM Internals + + This chapter documents DRM internals relevant to driver authors + and developers working to add support for the latest features to + existing drivers. + + + First, we'll go over some typical driver initialization + requirements, like setting up command buffers, creating an + initial output configuration, and initializing core services. + Subsequent sections will cover core internals in more detail, + providing implementation notes and examples. + + + The DRM layer provides several services to graphics drivers, + many of them driven by the application interfaces it provides + through libdrm, the library that wraps most of the DRM ioctls. + These include vblank event handling, memory + management, output management, framebuffer management, command + submission & fencing, suspend/resume support, and DMA + services. + + + The core of every DRM driver is struct drm_device. Drivers + will typically statically initialize a drm_device structure, + then pass it to drm_init() at load time. + + + + + + Driver initialization + + Before calling the DRM initialization routines, the driver must + first create and fill out a struct drm_device structure. + + + static struct drm_driver driver = { + /* don't use mtrr's here, the Xserver or user space app should + * deal with them for intel hardware. + */ + .driver_features = + DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | + DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | DRIVER_MODESET, + .load = i915_driver_load, + .unload = i915_driver_unload, + .firstopen = i915_driver_firstopen, + .lastclose = i915_driver_lastclose, + .preclose = i915_driver_preclose, + .save = i915_save, + .restore = i915_restore, + .device_is_agp = i915_driver_device_is_agp, + .get_vblank_counter = i915_get_vblank_counter, + .enable_vblank = i915_enable_vblank, + .disable_vblank = i915_disable_vblank, + .irq_preinstall = i915_driver_irq_preinstall, + .irq_postinstall = i915_driver_irq_postinstall, + .irq_uninstall = i915_driver_irq_uninstall, + .irq_handler = i915_driver_irq_handler, + .reclaim_buffers = drm_core_reclaim_buffers, + .get_map_ofs = drm_core_get_map_ofs, + .get_reg_ofs = drm_core_get_reg_ofs, + .fb_probe = intelfb_probe, + .fb_remove = intelfb_remove, + .fb_resize = intelfb_resize, + .master_create = i915_master_create, + .master_destroy = i915_master_destroy, +#if defined(CONFIG_DEBUG_FS) + .debugfs_init = i915_debugfs_init, + .debugfs_cleanup = i915_debugfs_cleanup, +#endif + .gem_init_object = i915_gem_init_object, + .gem_free_object = i915_gem_free_object, + .gem_vm_ops = &i915_gem_vm_ops, + .ioctls = i915_ioctls, + .fops = { + .owner = THIS_MODULE, + .open = drm_open, + .release = drm_release, + .ioctl = drm_ioctl, + .mmap = drm_mmap, + .poll = drm_poll, + .fasync = drm_fasync, +#ifdef CONFIG_COMPAT + .compat_ioctl = i915_compat_ioctl, +#endif + }, + .pci_driver = { + .name = DRIVER_NAME, + .id_table = pciidlist, + .probe = probe, + .remove = __devexit_p(drm_cleanup_pci), + }, + .name = DRIVER_NAME, + .desc = DRIVER_DESC, + .date = DRIVER_DATE, + .major = DRIVER_MAJOR, + .minor = DRIVER_MINOR, + .patchlevel = DRIVER_PATCHLEVEL, + }; + + + In the example above, taken from the i915 DRM driver, the driver + sets several flags indicating what core features it supports. + We'll go over the individual callbacks in later sections. Since + flags indicate which features your driver supports to the DRM + core, you need to set most of them prior to calling drm_init(). Some, + like DRIVER_MODESET can be set later based on user supplied parameters, + but that's the exception rather than the rule. + + + Driver flags + + DRIVER_USE_AGP + + Driver uses AGP interface + + + + DRIVER_REQUIRE_AGP + + Driver needs AGP interface to function. + + + + DRIVER_USE_MTRR + + + Driver uses MTRR interface for mapping memory. Deprecated. + + + + + DRIVER_PCI_DMA + + Driver is capable of PCI DMA. Deprecated. + + + + DRIVER_SG + + Driver can perform scatter/gather DMA. Deprecated. + + + + DRIVER_HAVE_DMA + Driver supports DMA. Deprecated. + + + DRIVER_HAVE_IRQDRIVER_IRQ_SHARED + + + DRIVER_HAVE_IRQ indicates whether the driver has a IRQ + handler, DRIVER_IRQ_SHARED indicates whether the device & + handler support shared IRQs (note that this is required of + PCI drivers). + + + + + DRIVER_DMA_QUEUE + + + If the driver queues DMA requests and completes them + asynchronously, this flag should be set. Deprecated. + + + + + DRIVER_FB_DMA + + + Driver supports DMA to/from the framebuffer. Deprecated. + + + + + DRIVER_MODESET + + + Driver supports mode setting interfaces. + + + + + + In this specific case, the driver requires AGP and supports + IRQs. DMA, as we'll see, is handled by device specific ioctls + in this case. It also supports the kernel mode setting APIs, though + unlike in the actual i915 driver source, this example unconditionally + exports KMS capability. + + + + + + + Driver load + + In the previous section, we saw what a typical drm_driver + structure might look like. One of the more important fields in + the structure is the hook for the load function. + + + static struct drm_driver driver = { + ... + .load = i915_driver_load, + ... + }; + + + The load function has many responsibilities: allocating a driver + private structure, specifying supported performance counters, + configuring the device (e.g. mapping registers & command + buffers), initializing the memory manager, and setting up the + initial output configuration. + + + Note that the tasks performed at driver load time must not + conflict with DRM client requirements. For instance, if user + level mode setting drivers are in use, it would be problematic + to perform output discovery & configuration at load time. + Likewise, if pre-memory management aware user level drivers are + in use, memory management and command buffer setup may need to + be omitted. These requirements are driver specific, and care + needs to be taken to keep both old and new applications and + libraries working. The i915 driver supports the "modeset" + module parameter to control whether advanced features are + enabled at load time or in legacy fashion. If compatibility is + a concern (e.g. with drivers converted over to the new interfaces + from the old ones), care must be taken to prevent incompatible + device initialization and control with the currently active + userspace drivers. + + + + Driver private & performance counters + + The driver private hangs off the main drm_device structure and + can be used for tracking various device specific bits of + information, like register offsets, command buffer status, + register state for suspend/resume, etc. At load time, a + driver can simply allocate one and set drm_device.dev_priv + appropriately; at unload the driver can free it and set + drm_device.dev_priv to NULL. + + + The DRM supports several counters which can be used for rough + performance characterization. Note that the DRM stat counter + system is not often used by applications, and supporting + additional counters is completely optional. + + + These interfaces are deprecated and should not be used. If performance + monitoring is desired, the developer should investigate and + potentially enhance the kernel perf and tracing infrastructure to export + GPU related performance information to performance monitoring + tools and applications. + + + + + Configuring the device + + Obviously, device configuration will be device specific. + However, there are several common operations: finding a + device's PCI resources, mapping them, and potentially setting + up an IRQ handler. + + + Finding & mapping resources is fairly straightforward. The + DRM wrapper functions, drm_get_resource_start() and + drm_get_resource_len() can be used to find BARs on the given + drm_device struct. Once those values have been retrieved, the + driver load function can call drm_addmap() to create a new + mapping for the BAR in question. Note you'll probably want a + drm_local_map_t in your driver private structure to track any + mappings you create. + + + + + if compatibility with other operating systems isn't a concern + (DRM drivers can run under various BSD variants and OpenSolaris), + native Linux calls can be used for the above, e.g. pci_resource_* + and iomap*/iounmap. See the Linux device driver book for more + info. + + + Once you have a register map, you can use the DRM_READn() and + DRM_WRITEn() macros to access the registers on your device, or + use driver specific versions to offset into your MMIO space + relative to a driver specific base pointer (see I915_READ for + example). + + + If your device supports interrupt generation, you may want to + setup an interrupt handler at driver load time as well. This + is done using the drm_irq_install() function. If your device + supports vertical blank interrupts, it should call + drm_vblank_init() to initialize the core vblank handling code before + enabling interrupts on your device. This ensures the vblank related + structures are allocated and allows the core to handle vblank events. + + + + Once your interrupt handler is registered (it'll use your + drm_driver.irq_handler as the actual interrupt handling + function), you can safely enable interrupts on your device, + assuming any other state your interrupt handler uses is also + initialized. + + + Another task that may be necessary during configuration is + mapping the video BIOS. On many devices, the VBIOS describes + device configuration, LCD panel timings (if any), and contains + flags indicating device state. Mapping the BIOS can be done + using the pci_map_rom() call, a convenience function that + takes care of mapping the actual ROM, whether it has been + shadowed into memory (typically at address 0xc0000) or exists + on the PCI device in the ROM BAR. Note that once you've + mapped the ROM and extracted any necessary information, be + sure to unmap it; on many devices the ROM address decoder is + shared with other BARs, so leaving it mapped can cause + undesired behavior like hangs or memory corruption. + + + + + + Memory manager initialization + + In order to allocate command buffers, cursor memory, scanout + buffers, etc., as well as support the latest features provided + by packages like Mesa and the X.Org X server, your driver + should support a memory manager. + + + If your driver supports memory management (it should!), you'll + need to set that up at load time as well. How you intialize + it depends on which memory manager you're using, TTM or GEM. + + + TTM initialization + + TTM (for Translation Table Manager) manages video memory and + aperture space for graphics devices. TTM supports both UMA devices + and devices with dedicated video RAM (VRAM), i.e. most discrete + graphics devices. If your device has dedicated RAM, supporting + TTM is desireable. TTM also integrates tightly with your + driver specific buffer execution function. See the radeon + driver for examples. + + + The core TTM structure is the ttm_bo_driver struct. It contains + several fields with function pointers for initializing the TTM, + allocating and freeing memory, waiting for command completion + and fence synchronization, and memory migration. See the + radeon_ttm.c file for an example of usage. + + + The ttm_global_reference structure is made up of several fields: + + + struct ttm_global_reference { + enum ttm_global_types global_type; + size_t size; + void *object; + int (*init) (struct ttm_global_reference *); + void (*release) (struct ttm_global_reference *); + }; + + + There should be one global reference structure for your memory + manager as a whole, and there will be others for each object + created by the memory manager at runtime. Your global TTM should + have a type of TTM_GLOBAL_TTM_MEM. The size field for the global + object should be sizeof(struct ttm_mem_global), and the init and + release hooks should point at your driver specific init and + release routines, which will probably eventually call + ttm_mem_global_init and ttm_mem_global_release respectively. + + + Once your global TTM accounting structure is set up and initialized + (done by calling ttm_global_item_ref on the global object you + just created), you'll need to create a buffer object TTM to + provide a pool for buffer object allocation by clients and the + kernel itself. The type of this object should be TTM_GLOBAL_TTM_BO, + and its size should be sizeof(struct ttm_bo_global). Again, + driver specific init and release functions can be provided, + likely eventually calling ttm_bo_global_init and + ttm_bo_global_release, respectively. Also like the previous + object, ttm_global_item_ref is used to create an initial reference + count for the TTM, which will call your initalization function. + + + + GEM initialization + + GEM is an alternative to TTM, designed specifically for UMA + devices. It has simpler initialization and execution requirements + than TTM, but has no VRAM management capability. Core GEM + initialization is comprised of a basic drm_mm_init call to create + a GTT DRM MM object, which provides an address space pool for + object allocation. In a KMS configuration, the driver will + need to allocate and initialize a command ring buffer following + basic GEM initialization. Most UMA devices have a so-called + "stolen" memory region, which provides space for the initial + framebuffer and large, contiguous memory regions required by the + device. This space is not typically managed by GEM, and must + be initialized separately into its own DRM MM object. + + + Initialization will be driver specific, and will depend on + the architecture of the device. In the case of Intel + integrated graphics chips like 965GM, GEM initialization can + be done by calling the internal GEM init function, + i915_gem_do_init(). Since the 965GM is a UMA device + (i.e. it doesn't have dedicated VRAM), GEM will manage + making regular RAM available for GPU operations. Memory set + aside by the BIOS (called "stolen" memory by the i915 + driver) will be managed by the DRM memrange allocator; the + rest of the aperture will be managed by GEM. + + /* Basic memrange allocator for stolen space (aka vram) */ + drm_memrange_init(&dev_priv->vram, 0, prealloc_size); + /* Let GEM Manage from end of prealloc space to end of aperture */ + i915_gem_do_init(dev, prealloc_size, agp_size); + + + + + Once the memory manager has been set up, we can allocate the + command buffer. In the i915 case, this is also done with a + GEM function, i915_gem_init_ringbuffer(). + + + + + + Output configuration + + The final initialization task is output configuration. This involves + finding and initializing the CRTCs, encoders and connectors + for your device, creating an initial configuration and + registering a framebuffer console driver. + + + Output discovery and initialization + + Several core functions exist to create CRTCs, encoders and + connectors, namely drm_crtc_init(), drm_connector_init() and + drm_encoder_init(), along with several "helper" functions to + perform common tasks. + + + Connectors should be registered with sysfs once they've been + detected and initialized, using the + drm_sysfs_connector_add() function. Likewise, when they're + removed from the system, they should be destroyed with + drm_sysfs_connector_remove(). + + +base; + drm_connector_init(dev, &intel_output->base, + &intel_crt_connector_funcs, DRM_MODE_CONNECTOR_VGA); + + drm_encoder_init(dev, &intel_output->enc, &intel_crt_enc_funcs, + DRM_MODE_ENCODER_DAC); + + drm_mode_connector_attach_encoder(&intel_output->base, + &intel_output->enc); + + /* Set up the DDC bus. */ + intel_output->ddc_bus = intel_i2c_create(dev, GPIOA, "CRTDDC_A"); + if (!intel_output->ddc_bus) { + dev_printk(KERN_ERR, &dev->pdev->dev, "DDC bus registration " + "failed.\n"); + return; + } + + intel_output->type = INTEL_OUTPUT_ANALOG; + connector->interlace_allowed = 0; + connector->doublescan_allowed = 0; + + drm_encoder_helper_add(&intel_output->enc, &intel_crt_helper_funcs); + drm_connector_helper_add(connector, &intel_crt_connector_helper_funcs); + + drm_sysfs_connector_add(connector); +} +]]> + + + In the example above (again, taken from the i915 driver), a + CRT connector and encoder combination is created. A device + specific i2c bus is also created, for fetching EDID data and + performing monitor detection. Once the process is complete, + the new connector is regsitered with sysfs, to make its + properties available to applications. + + + Helper functions and core functions + + Since many PC-class graphics devices have similar display output + designs, the DRM provides a set of helper functions to make + output management easier. The core helper routines handle + encoder re-routing and disabling of unused functions following + mode set. Using the helpers is optional, but recommended for + devices with PC-style architectures (i.e. a set of display planes + for feeding pixels to encoders which are in turn routed to + connectors). Devices with more complex requirements needing + finer grained management can opt to use the core callbacks + directly. + + + [Insert typical diagram here.] [Insert OMAP style config here.] + + + + For each encoder, CRTC and connector, several functions must + be provided, depending on the object type. Encoder objects + need should provide a DPMS (basically on/off) function, mode fixup + (for converting requested modes into native hardware timings), + and prepare, set and commit functions for use by the core DRM + helper functions. Connector helpers need to provide mode fetch and + validity functions as well as an encoder matching function for + returing an ideal encoder for a given connector. The core + connector functions include a DPMS callback, (deprecated) + save/restore routines, detection, mode probing, property handling, + and cleanup functions. + + + + + + + + + + + + VBlank event handling + + The DRM core exposes two vertical blank related ioctls: + DRM_IOCTL_WAIT_VBLANK and DRM_IOCTL_MODESET_CTL. + + + + DRM_IOCTL_WAIT_VBLANK takes a struct drm_wait_vblank structure + as its argument, and is used to block or request a signal when a + specified vblank event occurs. + + + DRM_IOCTL_MODESET_CTL should be called by application level + drivers before and after mode setting, since on many devices the + vertical blank counter will be reset at that time. Internally, + the DRM snapshots the last vblank count when the ioctl is called + with the _DRM_PRE_MODESET command so that the counter won't go + backwards (which is dealt with when _DRM_POST_MODESET is used). + + + To support the functions above, the DRM core provides several + helper functions for tracking vertical blank counters, and + requires drivers to provide several callbacks: + get_vblank_counter(), enable_vblank() and disable_vblank(). The + core uses get_vblank_counter() to keep the counter accurate + across interrupt disable periods. It should return the current + vertical blank event count, which is often tracked in a device + register. The enable and disable vblank callbacks should enable + and disable vertical blank interrupts, respectively. In the + absence of DRM clients waiting on vblank events, the core DRM + code will use the disable_vblank() function to disable + interrupts, which saves power. They'll be re-enabled again when + a client calls the vblank wait ioctl above. + + + Devices that don't provide a count register can simply use an + internal atomic counter incremented on every vertical blank + interrupt, and can make their enable and disable vblank + functions into no-ops. + + + + + Memory management + + The memory manager lies at the heart of many DRM operations, and + is also required to support advanced client features like OpenGL + pbuffers. The DRM currently contains two memory managers, TTM + and GEM. + + + + The Translation Table Manager (TTM) + + TTM was developed by Tungsten Graphics, primarily by Thomas + Hellström, and is intended to be a flexible, high performance + graphics memory manager. + + + Drivers wishing to support TTM must fill out a drm_bo_driver + structure. + + + TTM design background and information belongs here. + + + + + The Graphics Execution Manager (GEM) + + GEM is an Intel project, authored by Eric Anholt and Keith + Packard. It provides simpler interfaces than TTM, and is well + suited for UMA devices. + + + GEM-enabled drivers must provide gem_init_object() and + gem_free_object() callbacks to support the core memory + allocation routines. They should also provide several driver + specific ioctls to support command execution, pinning, buffer + read & write, mapping, and domain ownership transfers. + + + On a fundamental level, GEM involves several operations: memory + allocation and freeing, command execution, and aperture management + at command execution time. Buffer object allocation is relatively + straightforward and largely provided by Linux's shmem layer, which + provides memory to back each object. When mapped into the GTT + or used in a command buffer, the backing pages for an object are + flushed to memory and marked write combined so as to be coherent + with the GPU. Likewise, when the GPU finishes rendering to an object, + if the CPU accesses it, it must be made coherent with the CPU's view + of memory, usually involving GPU cache flushing of various kinds. + This core CPU<->GPU coherency management is provided by the GEM + set domain function, which evaluates an object's current domain and + performs any necessary flushing or synchronization to put the object + into the desired coherency domain (note that the object may be busy, + i.e. an active render target; in that case the set domain function + will block the client and wait for rendering to complete before + performing any necessary flushing operations). + + + Perhaps the most important GEM function is providing a command + execution interface to clients. Client programs construct command + buffers containing references to previously allocated memory objects + and submit them to GEM. At that point, GEM will take care to bind + all the objects into the GTT, execute the buffer, and provide + necessary synchronization between clients accessing the same buffers. + This often involves evicting some objects from the GTT and re-binding + others (a fairly expensive operation), and providing relocation + support which hides fixed GTT offsets from clients. Clients must + take care not to submit command buffers that reference more objects + than can fit in the GTT or GEM will reject them and no rendering + will occur. Similarly, if several objects in the buffer require + fence registers to be allocated for correct rendering (e.g. 2D blits + on pre-965 chips), care must be taken not to require more fence + registers than are available to the client. Such resource management + should be abstracted from the client in libdrm. + + + + + + + + Output management + + At the core of the DRM output management code is a set of + structures representing CRTCs, encoders and connectors. + + + A CRTC is an abstraction representing a part of the chip that + contains a pointer to a scanout buffer. Therefore, the number + of CRTCs available determines how many independent scanout + buffers can be active at any given time. The CRTC structure + contains several fields to support this: a pointer to some video + memory, a display mode, and an (x, y) offset into the video + memory to support panning or configurations where one piece of + video memory spans multiple CRTCs. + + + An encoder takes pixel data from a CRTC and converts it to a + format suitable for any attached connectors. On some devices, + it may be possible to have a CRTC send data to more than one + encoder. In that case, both encoders would receive data from + the same scanout buffer, resulting in a "cloned" display + configuration across the connectors attached to each encoder. + + + A connector is the final destination for pixel data on a device, + and usually connects directly to an external display device like + a monitor or laptop panel. A connector can only be attached to + one encoder at a time. The connector is also the structure + where information about the attached display is kept, so it + contains fields for display data, EDID data, DPMS & + connection status, and information about modes supported on the + attached displays. + + + + + + Framebuffer management + + In order to set a mode on a given CRTC, encoder and connector + configuration, clients need to provide a framebuffer object which + will provide a source of pixels for the CRTC to deliver to the encoder(s) + and ultimately the connector(s) in the configuration. A framebuffer + is fundamentally a driver specific memory object, made into an opaque + handle by the DRM addfb function. Once an fb has been created this + way it can be passed to the KMS mode setting routines for use in + a configuration. + + + + + Command submission & fencing + + This should cover a few device specific command submission + implementations. + + + + + Suspend/resume + + The DRM core provides some suspend/resume code, but drivers + wanting full suspend/resume support should provide save() and + restore() functions. These will be called at suspend, + hibernate, or resume time, and should perform any state save or + restore required by your device across suspend or hibernate + states. + + + + + DMA services + + This should cover how DMA mapping etc. is supported by the core. + These functions are deprecated and should not be used. + + + + + + + + Userland interfaces + + The DRM core exports several interfaces to applications, + generally intended to be used through corresponding libdrm + wrapper functions. In addition, drivers export device specific + interfaces for use by userspace drivers & device aware + applications through ioctls and sysfs files. + + + External interfaces include: memory mapping, context management, + DMA operations, AGP management, vblank control, fence + management, memory management, and output management. + + + Cover generic ioctls and sysfs layout here. Only need high + level info, since man pages will cover the rest. + + + + + + + DRM Driver API + + Include auto-generated API reference here (need to reference it + from paragraphs above too). + + + + -- cgit v1.2.3-70-g09d2 From cecbca96da387428e220e307a9c945e37e2f4d9e Mon Sep 17 00:00:00 2001 From: Frederic Weisbecker Date: Sun, 18 Apr 2010 19:08:41 +0200 Subject: tracing: Dump either the oops's cpu source or all cpus buffers The ftrace_dump_on_oops kernel parameter, sysctl and sysrq let one dump every cpu buffers when an oops or panic happens. It's nice when you have few cpus but it may take ages if have many, plus you miss the real origin of the problem in all the cpu traces. Sometimes, all you need is to dump the cpu buffer that triggered the opps, most of the time it is our main interest. This patch modifies ftrace_dump_on_oops to handle this choice. The ftrace_dump_on_oops kernel parameter, when it comes alone, has the same behaviour than before. But ftrace_dump_on_oops=orig_cpu will only dump the buffer of the cpu that oops'ed. Similarly, sysctl kernel.ftrace_dump_on_oops=1 and echo 1 > /proc/sys/kernel/ftrace_dump_on_oops keep their previous behaviour. But setting 2 jumps into cpu origin dump mode. v2: Fix double setup v3: Fix spelling issues reported by Randy Dunlap v4: Also update __ftrace_dump in the selftests Signed-off-by: Frederic Weisbecker Acked-by: David S. Miller Acked-by: Steven Rostedt Cc: Ingo Molnar Cc: Thomas Gleixner Cc: Li Zefan Cc: Lai Jiangshan --- Documentation/kernel-parameters.txt | 6 ++++- Documentation/trace/ftrace.txt | 6 +++-- drivers/char/sysrq.c | 2 +- include/linux/ftrace.h | 4 ++- include/linux/kernel.h | 11 ++++++-- kernel/trace/trace.c | 51 ++++++++++++++++++++++++++++--------- kernel/trace/trace_selftest.c | 5 ++-- 7 files changed, 64 insertions(+), 21 deletions(-) (limited to 'Documentation') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index e4cbca58536..ab67b33300f 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -789,8 +789,12 @@ and is between 256 and 4096 characters. It is defined in the file as early as possible in order to facilitate early boot debugging. - ftrace_dump_on_oops + ftrace_dump_on_oops[=orig_cpu] [FTRACE] will dump the trace buffers on oops. + If no parameter is passed, ftrace will dump + buffers of all CPUs, but if you pass orig_cpu, it will + dump only the buffer of the CPU that triggered the + oops. ftrace_filter=[function-list] [FTRACE] Limit the functions traced by the function diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt index 03485bfbd79..52011815c90 100644 --- a/Documentation/trace/ftrace.txt +++ b/Documentation/trace/ftrace.txt @@ -1337,12 +1337,14 @@ ftrace_dump_on_oops must be set. To set ftrace_dump_on_oops, one can either use the sysctl function or set it via the proc system interface. - sysctl kernel.ftrace_dump_on_oops=1 + sysctl kernel.ftrace_dump_on_oops=n or - echo 1 > /proc/sys/kernel/ftrace_dump_on_oops + echo n > /proc/sys/kernel/ftrace_dump_on_oops +If n = 1, ftrace will dump buffers of all CPUs, if n = 2 ftrace will +only dump the buffer of the CPU that triggered the oops. Here's an example of such a dump after a null pointer dereference in a kernel module: diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c index 59de2525d30..d4e8b213a46 100644 --- a/drivers/char/sysrq.c +++ b/drivers/char/sysrq.c @@ -289,7 +289,7 @@ static struct sysrq_key_op sysrq_showstate_blocked_op = { static void sysrq_ftrace_dump(int key, struct tty_struct *tty) { - ftrace_dump(); + ftrace_dump(DUMP_ALL); } static struct sysrq_key_op sysrq_ftrace_dump_op = { .handler = sysrq_ftrace_dump, diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 01e6adea07e..ea5b1aae0e8 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -492,7 +492,9 @@ static inline int test_tsk_trace_graph(struct task_struct *tsk) return tsk->trace & TSK_TRACE_FL_GRAPH; } -extern int ftrace_dump_on_oops; +enum ftrace_dump_mode; + +extern enum ftrace_dump_mode ftrace_dump_on_oops; #ifdef CONFIG_PREEMPT #define INIT_TRACE_RECURSION .trace_recursion = 0, diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 9365227dbaf..9fb1c129903 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -490,6 +490,13 @@ static inline void tracing_off(void) { } static inline void tracing_off_permanent(void) { } static inline int tracing_is_on(void) { return 0; } #endif + +enum ftrace_dump_mode { + DUMP_NONE, + DUMP_ALL, + DUMP_ORIG, +}; + #ifdef CONFIG_TRACING extern void tracing_start(void); extern void tracing_stop(void); @@ -571,7 +578,7 @@ __ftrace_vbprintk(unsigned long ip, const char *fmt, va_list ap); extern int __ftrace_vprintk(unsigned long ip, const char *fmt, va_list ap); -extern void ftrace_dump(void); +extern void ftrace_dump(enum ftrace_dump_mode oops_dump_mode); #else static inline void ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { } @@ -592,7 +599,7 @@ ftrace_vprintk(const char *fmt, va_list ap) { return 0; } -static inline void ftrace_dump(void) { } +static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { } #endif /* CONFIG_TRACING */ /* diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index bed83cab6da..7b516c7ef9a 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -117,9 +117,12 @@ static cpumask_var_t __read_mostly tracing_buffer_mask; * * It is default off, but you can enable it with either specifying * "ftrace_dump_on_oops" in the kernel command line, or setting - * /proc/sys/kernel/ftrace_dump_on_oops to true. + * /proc/sys/kernel/ftrace_dump_on_oops + * Set 1 if you want to dump buffers of all CPUs + * Set 2 if you want to dump the buffer of the CPU that triggered oops */ -int ftrace_dump_on_oops; + +enum ftrace_dump_mode ftrace_dump_on_oops; static int tracing_set_tracer(const char *buf); @@ -139,8 +142,17 @@ __setup("ftrace=", set_cmdline_ftrace); static int __init set_ftrace_dump_on_oops(char *str) { - ftrace_dump_on_oops = 1; - return 1; + if (*str++ != '=' || !*str) { + ftrace_dump_on_oops = DUMP_ALL; + return 1; + } + + if (!strcmp("orig_cpu", str)) { + ftrace_dump_on_oops = DUMP_ORIG; + return 1; + } + + return 0; } __setup("ftrace_dump_on_oops", set_ftrace_dump_on_oops); @@ -4338,7 +4350,7 @@ static int trace_panic_handler(struct notifier_block *this, unsigned long event, void *unused) { if (ftrace_dump_on_oops) - ftrace_dump(); + ftrace_dump(ftrace_dump_on_oops); return NOTIFY_OK; } @@ -4355,7 +4367,7 @@ static int trace_die_handler(struct notifier_block *self, switch (val) { case DIE_OOPS: if (ftrace_dump_on_oops) - ftrace_dump(); + ftrace_dump(ftrace_dump_on_oops); break; default: break; @@ -4396,7 +4408,8 @@ trace_printk_seq(struct trace_seq *s) trace_seq_init(s); } -static void __ftrace_dump(bool disable_tracing) +static void +__ftrace_dump(bool disable_tracing, enum ftrace_dump_mode oops_dump_mode) { static arch_spinlock_t ftrace_dump_lock = (arch_spinlock_t)__ARCH_SPIN_LOCK_UNLOCKED; @@ -4429,12 +4442,25 @@ static void __ftrace_dump(bool disable_tracing) /* don't look at user memory in panic mode */ trace_flags &= ~TRACE_ITER_SYM_USEROBJ; - printk(KERN_TRACE "Dumping ftrace buffer:\n"); - /* Simulate the iterator */ iter.tr = &global_trace; iter.trace = current_trace; - iter.cpu_file = TRACE_PIPE_ALL_CPU; + + switch (oops_dump_mode) { + case DUMP_ALL: + iter.cpu_file = TRACE_PIPE_ALL_CPU; + break; + case DUMP_ORIG: + iter.cpu_file = raw_smp_processor_id(); + break; + case DUMP_NONE: + goto out_enable; + default: + printk(KERN_TRACE "Bad dumping mode, switching to all CPUs dump\n"); + iter.cpu_file = TRACE_PIPE_ALL_CPU; + } + + printk(KERN_TRACE "Dumping ftrace buffer:\n"); /* * We need to stop all tracing on all CPUS to read the @@ -4473,6 +4499,7 @@ static void __ftrace_dump(bool disable_tracing) else printk(KERN_TRACE "---------------------------------\n"); + out_enable: /* Re-enable tracing if requested */ if (!disable_tracing) { trace_flags |= old_userobj; @@ -4489,9 +4516,9 @@ static void __ftrace_dump(bool disable_tracing) } /* By default: disable tracing after the dump */ -void ftrace_dump(void) +void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { - __ftrace_dump(true); + __ftrace_dump(true, oops_dump_mode); } __init static int tracer_alloc_buffers(void) diff --git a/kernel/trace/trace_selftest.c b/kernel/trace/trace_selftest.c index 9398034f814..6a9d36ddfcf 100644 --- a/kernel/trace/trace_selftest.c +++ b/kernel/trace/trace_selftest.c @@ -256,7 +256,8 @@ trace_selftest_startup_function(struct tracer *trace, struct trace_array *tr) /* Maximum number of functions to trace before diagnosing a hang */ #define GRAPH_MAX_FUNC_TEST 100000000 -static void __ftrace_dump(bool disable_tracing); +static void +__ftrace_dump(bool disable_tracing, enum ftrace_dump_mode oops_dump_mode); static unsigned int graph_hang_thresh; /* Wrap the real function entry probe to avoid possible hanging */ @@ -267,7 +268,7 @@ static int trace_graph_entry_watchdog(struct ftrace_graph_ent *trace) ftrace_graph_stop(); printk(KERN_WARNING "BUG: Function graph tracer hang!\n"); if (ftrace_dump_on_oops) - __ftrace_dump(false); + __ftrace_dump(false, DUMP_ALL); return 0; } -- cgit v1.2.3-70-g09d2 From 719f82d3987aad4cc9f46d19c35f362672545cad Mon Sep 17 00:00:00 2001 From: Eliot Blennerhassett Date: Wed, 21 Apr 2010 18:17:39 +0200 Subject: ALSA: Add support of AudioScience ASI boards Added the support of AudioScience ASI boards. The driver has been tested for years on alsa-driver external tree, now finally got merged to the kernel. Signed-off-by: Eliot Blennerhassett Signed-off-by: Takashi Iwai --- Documentation/sound/alsa/ALSA-Configuration.txt | 10 + sound/pci/Kconfig | 12 + sound/pci/Makefile | 1 + sound/pci/asihpi/Makefile | 5 + sound/pci/asihpi/asihpi.c | 3002 ++++++++++++++++++ sound/pci/asihpi/hpi.h | 2001 ++++++++++++ sound/pci/asihpi/hpi6000.c | 1841 +++++++++++ sound/pci/asihpi/hpi6000.h | 70 + sound/pci/asihpi/hpi6205.c | 2332 ++++++++++++++ sound/pci/asihpi/hpi6205.h | 93 + sound/pci/asihpi/hpi_internal.h | 1641 ++++++++++ sound/pci/asihpi/hpicmn.c | 643 ++++ sound/pci/asihpi/hpicmn.h | 64 + sound/pci/asihpi/hpidebug.c | 225 ++ sound/pci/asihpi/hpidebug.h | 385 +++ sound/pci/asihpi/hpidspcd.c | 172 + sound/pci/asihpi/hpidspcd.h | 104 + sound/pci/asihpi/hpifunc.c | 3864 +++++++++++++++++++++++ sound/pci/asihpi/hpimsginit.c | 130 + sound/pci/asihpi/hpimsginit.h | 40 + sound/pci/asihpi/hpimsgx.c | 907 ++++++ sound/pci/asihpi/hpimsgx.h | 36 + sound/pci/asihpi/hpioctl.c | 484 +++ sound/pci/asihpi/hpioctl.h | 38 + sound/pci/asihpi/hpios.c | 114 + sound/pci/asihpi/hpios.h | 178 ++ sound/pci/asihpi/hpipcida.h | 37 + 27 files changed, 18429 insertions(+) create mode 100644 sound/pci/asihpi/Makefile create mode 100644 sound/pci/asihpi/asihpi.c create mode 100644 sound/pci/asihpi/hpi.h create mode 100644 sound/pci/asihpi/hpi6000.c create mode 100644 sound/pci/asihpi/hpi6000.h create mode 100644 sound/pci/asihpi/hpi6205.c create mode 100644 sound/pci/asihpi/hpi6205.h create mode 100644 sound/pci/asihpi/hpi_internal.h create mode 100644 sound/pci/asihpi/hpicmn.c create mode 100644 sound/pci/asihpi/hpicmn.h create mode 100644 sound/pci/asihpi/hpidebug.c create mode 100644 sound/pci/asihpi/hpidebug.h create mode 100644 sound/pci/asihpi/hpidspcd.c create mode 100644 sound/pci/asihpi/hpidspcd.h create mode 100644 sound/pci/asihpi/hpifunc.c create mode 100644 sound/pci/asihpi/hpimsginit.c create mode 100644 sound/pci/asihpi/hpimsginit.h create mode 100644 sound/pci/asihpi/hpimsgx.c create mode 100644 sound/pci/asihpi/hpimsgx.h create mode 100644 sound/pci/asihpi/hpioctl.c create mode 100644 sound/pci/asihpi/hpioctl.h create mode 100644 sound/pci/asihpi/hpios.c create mode 100644 sound/pci/asihpi/hpios.h create mode 100644 sound/pci/asihpi/hpipcida.h (limited to 'Documentation') diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt index bfcbbf88c44..dc681badca6 100644 --- a/Documentation/sound/alsa/ALSA-Configuration.txt +++ b/Documentation/sound/alsa/ALSA-Configuration.txt @@ -227,6 +227,16 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. The power-management is supported. + Module snd-asihpi + ----------------- + + Module for AudioScience ASI soundcards + + enable_hpi_hwdep - enable HPI hwdep for AudioScience soundcard + + This module supports multiple cards. + The driver requires the firmware loader support on kernel. + Module snd-atiixp ----------------- diff --git a/sound/pci/Kconfig b/sound/pci/Kconfig index 1298c68d6bf..517ae65ffc8 100644 --- a/sound/pci/Kconfig +++ b/sound/pci/Kconfig @@ -58,6 +58,18 @@ config SND_ALI5451 To compile this driver as a module, choose M here: the module will be called snd-ali5451. +config SND_ASIHPI + tristate "AudioScience ASIxxxx" + depends on X86 + select FW_LOADER + select SND_PCM + select SND_HWDEP + help + Say Y here to include support for AudioScience ASI sound cards. + + To compile this driver as a module, choose M here: the module + will be called snd-asihpi. + config SND_ATIIXP tristate "ATI IXP AC97 Controller" select SND_AC97_CODEC diff --git a/sound/pci/Makefile b/sound/pci/Makefile index ecfc609d2b9..9cf4348ec13 100644 --- a/sound/pci/Makefile +++ b/sound/pci/Makefile @@ -57,6 +57,7 @@ obj-$(CONFIG_SND_VIA82XX_MODEM) += snd-via82xx-modem.o obj-$(CONFIG_SND) += \ ac97/ \ ali5451/ \ + asihpi/ \ au88x0/ \ aw2/ \ ctxfi/ \ diff --git a/sound/pci/asihpi/Makefile b/sound/pci/asihpi/Makefile new file mode 100644 index 00000000000..391830a4556 --- /dev/null +++ b/sound/pci/asihpi/Makefile @@ -0,0 +1,5 @@ +snd-asihpi-objs := asihpi.o hpioctl.o hpimsginit.o\ + hpicmn.o hpifunc.o hpidebug.o hpidspcd.o\ + hpios.o hpi6000.o hpi6205.o hpimsgx.o + +obj-$(CONFIG_SND_ASIHPI) += snd-asihpi.o diff --git a/sound/pci/asihpi/asihpi.c b/sound/pci/asihpi/asihpi.c new file mode 100644 index 00000000000..f74c7372b3d --- /dev/null +++ b/sound/pci/asihpi/asihpi.c @@ -0,0 +1,3002 @@ +/* + * Asihpi soundcard + * Copyright (c) by AudioScience Inc + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation; + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * + * The following is not a condition of use, merely a request: + * If you modify this program, particularly if you fix errors, AudioScience Inc + * would appreciate it if you grant us the right to use those modifications + * for any purpose including commercial applications. + */ +/* >0: print Hw params, timer vars. >1: print stream write/copy sizes */ +#define REALLY_VERBOSE_LOGGING 0 + +#if REALLY_VERBOSE_LOGGING +#define VPRINTK1 snd_printd +#else +#define VPRINTK1(...) +#endif + +#if REALLY_VERBOSE_LOGGING > 1 +#define VPRINTK2 snd_printd +#else +#define VPRINTK2(...) +#endif + +#ifndef ASI_STYLE_NAMES +/* not sure how ALSA style name should look */ +#define ASI_STYLE_NAMES 1 +#endif + +#include "hpi_internal.h" +#include "hpimsginit.h" +#include "hpioctl.h" + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + + +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("AudioScience inc. "); +MODULE_DESCRIPTION("AudioScience ALSA ASI5000 ASI6000 ASI87xx ASI89xx"); + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* index 0-MAX */ +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ +static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; +static int enable_hpi_hwdep = 1; + +module_param_array(index, int, NULL, S_IRUGO); +MODULE_PARM_DESC(index, "ALSA index value for AudioScience soundcard."); + +module_param_array(id, charp, NULL, S_IRUGO); +MODULE_PARM_DESC(id, "ALSA ID string for AudioScience soundcard."); + +module_param_array(enable, bool, NULL, S_IRUGO); +MODULE_PARM_DESC(enable, "ALSA enable AudioScience soundcard."); + +module_param(enable_hpi_hwdep, bool, S_IRUGO|S_IWUSR); +MODULE_PARM_DESC(enable_hpi_hwdep, + "ALSA enable HPI hwdep for AudioScience soundcard "); + +/* identify driver */ +#ifdef KERNEL_ALSA_BUILD +static char *build_info = "built using headers from kernel source"; +module_param(build_info, charp, S_IRUGO); +MODULE_PARM_DESC(build_info, "built using headers from kernel source"); +#else +static char *build_info = "built within ALSA source"; +module_param(build_info, charp, S_IRUGO); +MODULE_PARM_DESC(build_info, "built within ALSA source"); +#endif + +/* set to 1 to dump every control from adapter to log */ +static const int mixer_dump; + +#define DEFAULT_SAMPLERATE 44100 +static int adapter_fs = DEFAULT_SAMPLERATE; + +static struct hpi_hsubsys *ss; /* handle to HPI audio subsystem */ + +/* defaults */ +#define PERIODS_MIN 2 +#define PERIOD_BYTES_MIN 2304 +#define BUFFER_BYTES_MAX (512 * 1024) + +/*#define TIMER_MILLISECONDS 20 +#define FORCE_TIMER_JIFFIES ((TIMER_MILLISECONDS * HZ + 999)/1000) +*/ + +#define MAX_CLOCKSOURCES (HPI_SAMPLECLOCK_SOURCE_LAST + 1 + 7) + +struct clk_source { + int source; + int index; + char *name; +}; + +struct clk_cache { + int count; + int has_local; + struct clk_source s[MAX_CLOCKSOURCES]; +}; + +/* Per card data */ +struct snd_card_asihpi { + struct snd_card *card; + struct pci_dev *pci; + u16 adapter_index; + u32 serial_number; + u16 type; + u16 version; + u16 num_outstreams; + u16 num_instreams; + + u32 h_mixer; + struct clk_cache cc; + + u16 support_mmap; + u16 support_grouping; + u16 support_mrx; + u16 update_interval_frames; + u16 in_max_chans; + u16 out_max_chans; +}; + +/* Per stream data */ +struct snd_card_asihpi_pcm { + struct timer_list timer; + unsigned int respawn_timer; + unsigned int hpi_buffer_attached; + unsigned int pcm_size; + unsigned int pcm_count; + unsigned int bytes_per_sec; + unsigned int pcm_irq_pos; /* IRQ position */ + unsigned int pcm_buf_pos; /* position in buffer */ + struct snd_pcm_substream *substream; + u32 h_stream; + struct hpi_format format; +}; + +/* universal stream verbs work with out or in stream handles */ + +/* Functions to allow driver to give a buffer to HPI for busmastering */ + +static u16 hpi_stream_host_buffer_attach( + struct hpi_hsubsys *hS, + u32 h_stream, /* handle to outstream. */ + u32 size_in_bytes, /* size in bytes of bus mastering buffer */ + u32 pci_address +) +{ + struct hpi_message hm; + struct hpi_response hr; + unsigned int obj = hpi_handle_object(h_stream); + + if (!h_stream) + return HPI_ERROR_INVALID_OBJ; + hpi_init_message_response(&hm, &hr, obj, + obj == HPI_OBJ_OSTREAM ? + HPI_OSTREAM_HOSTBUFFER_ALLOC : + HPI_ISTREAM_HOSTBUFFER_ALLOC); + + hpi_handle_to_indexes(h_stream, &hm.adapter_index, + &hm.obj_index); + + hm.u.d.u.buffer.buffer_size = size_in_bytes; + hm.u.d.u.buffer.pci_address = pci_address; + hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_GRANTADAPTER; + hpi_send_recv(&hm, &hr); + return hr.error; +} + +static u16 hpi_stream_host_buffer_detach( + struct hpi_hsubsys *hS, + u32 h_stream +) +{ + struct hpi_message hm; + struct hpi_response hr; + unsigned int obj = hpi_handle_object(h_stream); + + if (!h_stream) + return HPI_ERROR_INVALID_OBJ; + + hpi_init_message_response(&hm, &hr, obj, + obj == HPI_OBJ_OSTREAM ? + HPI_OSTREAM_HOSTBUFFER_FREE : + HPI_ISTREAM_HOSTBUFFER_FREE); + + hpi_handle_to_indexes(h_stream, &hm.adapter_index, + &hm.obj_index); + hm.u.d.u.buffer.command = HPI_BUFFER_CMD_INTERNAL_REVOKEADAPTER; + hpi_send_recv(&hm, &hr); + return hr.error; +} + +static inline u16 hpi_stream_start(struct hpi_hsubsys *hS, u32 h_stream) +{ + if (hpi_handle_object(h_stream) == HPI_OBJ_OSTREAM) + return hpi_outstream_start(hS, h_stream); + else + return hpi_instream_start(hS, h_stream); +} + +static inline u16 hpi_stream_stop(struct hpi_hsubsys *hS, u32 h_stream) +{ + if (hpi_handle_object(h_stream) == HPI_OBJ_OSTREAM) + return hpi_outstream_stop(hS, h_stream); + else + return hpi_instream_stop(hS, h_stream); +} + +static inline u16 hpi_stream_get_info_ex( + struct hpi_hsubsys *hS, + u32 h_stream, + u16 *pw_state, + u32 *pbuffer_size, + u32 *pdata_in_buffer, + u32 *psample_count, + u32 *pauxiliary_data +) +{ + if (hpi_handle_object(h_stream) == HPI_OBJ_OSTREAM) + return hpi_outstream_get_info_ex(hS, h_stream, pw_state, + pbuffer_size, pdata_in_buffer, + psample_count, pauxiliary_data); + else + return hpi_instream_get_info_ex(hS, h_stream, pw_state, + pbuffer_size, pdata_in_buffer, + psample_count, pauxiliary_data); +} + +static inline u16 hpi_stream_group_add(struct hpi_hsubsys *hS, + u32 h_master, + u32 h_stream) +{ + if (hpi_handle_object(h_master) == HPI_OBJ_OSTREAM) + return hpi_outstream_group_add(hS, h_master, h_stream); + else + return hpi_instream_group_add(hS, h_master, h_stream); +} + +static inline u16 hpi_stream_group_reset(struct hpi_hsubsys *hS, + u32 h_stream) +{ + if (hpi_handle_object(h_stream) == HPI_OBJ_OSTREAM) + return hpi_outstream_group_reset(hS, h_stream); + else + return hpi_instream_group_reset(hS, h_stream); +} + +static inline u16 hpi_stream_group_get_map(struct hpi_hsubsys *hS, + u32 h_stream, u32 *mo, u32 *mi) +{ + if (hpi_handle_object(h_stream) == HPI_OBJ_OSTREAM) + return hpi_outstream_group_get_map(hS, h_stream, mo, mi); + else + return hpi_instream_group_get_map(hS, h_stream, mo, mi); +} + +static u16 handle_error(u16 err, int line, char *filename) +{ + if (err) + printk(KERN_WARNING + "in file %s, line %d: HPI error %d\n", + filename, line, err); + return err; +} + +#define hpi_handle_error(x) handle_error(x, __LINE__, __FILE__) + +/***************************** GENERAL PCM ****************/ +#if REALLY_VERBOSE_LOGGING +static void print_hwparams(struct snd_pcm_hw_params *p) +{ + snd_printd("HWPARAMS \n"); + snd_printd("samplerate %d \n", params_rate(p)); + snd_printd("channels %d \n", params_channels(p)); + snd_printd("format %d \n", params_format(p)); + snd_printd("subformat %d \n", params_subformat(p)); + snd_printd("buffer bytes %d \n", params_buffer_bytes(p)); + snd_printd("period bytes %d \n", params_period_bytes(p)); + snd_printd("access %d \n", params_access(p)); + snd_printd("period_size %d \n", params_period_size(p)); + snd_printd("periods %d \n", params_periods(p)); + snd_printd("buffer_size %d \n", params_buffer_size(p)); +} +#else +#define print_hwparams(x) +#endif + +static snd_pcm_format_t hpi_to_alsa_formats[] = { + -1, /* INVALID */ + SNDRV_PCM_FORMAT_U8, /* HPI_FORMAT_PCM8_UNSIGNED 1 */ + SNDRV_PCM_FORMAT_S16, /* HPI_FORMAT_PCM16_SIGNED 2 */ + -1, /* HPI_FORMAT_MPEG_L1 3 */ + SNDRV_PCM_FORMAT_MPEG, /* HPI_FORMAT_MPEG_L2 4 */ + SNDRV_PCM_FORMAT_MPEG, /* HPI_FORMAT_MPEG_L3 5 */ + -1, /* HPI_FORMAT_DOLBY_AC2 6 */ + -1, /* HPI_FORMAT_DOLBY_AC3 7 */ + SNDRV_PCM_FORMAT_S16_BE,/* HPI_FORMAT_PCM16_BIGENDIAN 8 */ + -1, /* HPI_FORMAT_AA_TAGIT1_HITS 9 */ + -1, /* HPI_FORMAT_AA_TAGIT1_INSERTS 10 */ + SNDRV_PCM_FORMAT_S32, /* HPI_FORMAT_PCM32_SIGNED 11 */ + -1, /* HPI_FORMAT_RAW_BITSTREAM 12 */ + -1, /* HPI_FORMAT_AA_TAGIT1_HITS_EX1 13 */ + SNDRV_PCM_FORMAT_FLOAT, /* HPI_FORMAT_PCM32_FLOAT 14 */ +#if 1 + /* ALSA can't handle 3 byte sample size together with power-of-2 + * constraint on buffer_bytes, so disable this format + */ + -1 +#else + /* SNDRV_PCM_FORMAT_S24_3LE */ /* { HPI_FORMAT_PCM24_SIGNED 15 */ +#endif +}; + + +static int snd_card_asihpi_format_alsa2hpi(snd_pcm_format_t alsa_format, + u16 *hpi_format) +{ + u16 format; + + for (format = HPI_FORMAT_PCM8_UNSIGNED; + format <= HPI_FORMAT_PCM24_SIGNED; format++) { + if (hpi_to_alsa_formats[format] == alsa_format) { + *hpi_format = format; + return 0; + } + } + + snd_printd(KERN_WARNING "failed match for alsa format %d\n", + alsa_format); + *hpi_format = 0; + return -EINVAL; +} + +static void snd_card_asihpi_pcm_samplerates(struct snd_card_asihpi *asihpi, + struct snd_pcm_hardware *pcmhw) +{ + u16 err; + u32 h_control; + u32 sample_rate; + int idx; + unsigned int rate_min = 200000; + unsigned int rate_max = 0; + unsigned int rates = 0; + + if (asihpi->support_mrx) { + rates |= SNDRV_PCM_RATE_CONTINUOUS; + rates |= SNDRV_PCM_RATE_8000_96000; + rate_min = 8000; + rate_max = 100000; + } else { + /* on cards without SRC, + valid rates are determined by sampleclock */ + err = hpi_mixer_get_control(ss, asihpi->h_mixer, + HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0, + HPI_CONTROL_SAMPLECLOCK, &h_control); + if (err) { + snd_printk(KERN_ERR + "no local sampleclock, err %d\n", err); + } + + for (idx = 0; idx < 100; idx++) { + if (hpi_sample_clock_query_local_rate(ss, + h_control, idx, &sample_rate)) { + if (!idx) + snd_printk(KERN_ERR + "local rate query failed\n"); + + break; + } + + rate_min = min(rate_min, sample_rate); + rate_max = max(rate_max, sample_rate); + + switch (sample_rate) { + case 5512: + rates |= SNDRV_PCM_RATE_5512; + break; + case 8000: + rates |= SNDRV_PCM_RATE_8000; + break; + case 11025: + rates |= SNDRV_PCM_RATE_11025; + break; + case 16000: + rates |= SNDRV_PCM_RATE_16000; + break; + case 22050: + rates |= SNDRV_PCM_RATE_22050; + break; + case 32000: + rates |= SNDRV_PCM_RATE_32000; + break; + case 44100: + rates |= SNDRV_PCM_RATE_44100; + break; + case 48000: + rates |= SNDRV_PCM_RATE_48000; + break; + case 64000: + rates |= SNDRV_PCM_RATE_64000; + break; + case 88200: + rates |= SNDRV_PCM_RATE_88200; + break; + case 96000: + rates |= SNDRV_PCM_RATE_96000; + break; + case 176400: + rates |= SNDRV_PCM_RATE_176400; + break; + case 192000: + rates |= SNDRV_PCM_RATE_192000; + break; + default: /* some other rate */ + rates |= SNDRV_PCM_RATE_KNOT; + } + } + } + + /* printk(KERN_INFO "Supported rates %X %d %d\n", + rates, rate_min, rate_max); */ + pcmhw->rates = rates; + pcmhw->rate_min = rate_min; + pcmhw->rate_max = rate_max; +} + +static int snd_card_asihpi_pcm_hw_params(struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + struct snd_card_asihpi *card = snd_pcm_substream_chip(substream); + int err; + u16 format; + unsigned int bytes_per_sec; + + print_hwparams(params); + err = snd_pcm_lib_malloc_pages(substream, params_buffer_bytes(params)); + if (err < 0) + return err; + err = snd_card_asihpi_format_alsa2hpi(params_format(params), &format); + if (err) + return err; + + VPRINTK1(KERN_INFO "format %d, %d chans, %d_hz\n", + format, params_channels(params), + params_rate(params)); + + hpi_handle_error(hpi_format_create(&dpcm->format, + params_channels(params), + format, params_rate(params), 0, 0)); + + if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) { + if (hpi_instream_reset(ss, dpcm->h_stream) != 0) + return -EINVAL; + + if (hpi_instream_set_format(ss, + dpcm->h_stream, &dpcm->format) != 0) + return -EINVAL; + } + + dpcm->hpi_buffer_attached = 0; + if (card->support_mmap) { + + err = hpi_stream_host_buffer_attach(ss, dpcm->h_stream, + params_buffer_bytes(params), runtime->dma_addr); + if (err == 0) { + snd_printd(KERN_INFO + "stream_host_buffer_attach succeeded %u %lu\n", + params_buffer_bytes(params), + (unsigned long)runtime->dma_addr); + } else { + snd_printd(KERN_INFO + "stream_host_buffer_attach error %d\n", + err); + return -ENOMEM; + } + + err = hpi_stream_get_info_ex(ss, dpcm->h_stream, NULL, + &dpcm->hpi_buffer_attached, + NULL, NULL, NULL); + + snd_printd(KERN_INFO "stream_host_buffer_attach status 0x%x\n", + dpcm->hpi_buffer_attached); + } + bytes_per_sec = params_rate(params) * params_channels(params); + bytes_per_sec *= snd_pcm_format_width(params_format(params)); + bytes_per_sec /= 8; + if (bytes_per_sec <= 0) + return -EINVAL; + + dpcm->bytes_per_sec = bytes_per_sec; + dpcm->pcm_size = params_buffer_bytes(params); + dpcm->pcm_count = params_period_bytes(params); + snd_printd(KERN_INFO "pcm_size=%d, pcm_count=%d, bps=%d\n", + dpcm->pcm_size, dpcm->pcm_count, bytes_per_sec); + + dpcm->pcm_irq_pos = 0; + dpcm->pcm_buf_pos = 0; + return 0; +} + +static void snd_card_asihpi_pcm_timer_start(struct snd_pcm_substream * + substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + int expiry; + + expiry = (dpcm->pcm_count * HZ / dpcm->bytes_per_sec); + /* wait longer the first time, for samples to propagate */ + expiry = max(expiry, 20); + dpcm->timer.expires = jiffies + expiry; + dpcm->respawn_timer = 1; + add_timer(&dpcm->timer); +} + +static void snd_card_asihpi_pcm_timer_stop(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + + dpcm->respawn_timer = 0; + del_timer(&dpcm->timer); +} + +static int snd_card_asihpi_trigger(struct snd_pcm_substream *substream, + int cmd) +{ + struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data; + struct snd_card_asihpi *card = snd_pcm_substream_chip(substream); + struct snd_pcm_substream *s; + u16 e; + + snd_printd("trigger %dstream %d\n", + substream->stream, substream->number); + switch (cmd) { + case SNDRV_PCM_TRIGGER_START: + snd_pcm_group_for_each_entry(s, substream) { + struct snd_card_asihpi_pcm *ds; + ds = s->runtime->private_data; + + if (snd_pcm_substream_chip(s) != card) + continue; + + if ((s->stream == SNDRV_PCM_STREAM_PLAYBACK) && + (card->support_mmap)) { + /* How do I know how much valid data is present + * in buffer? Just guessing 2 periods, but if + * buffer is bigger it may contain even more + * data?? + */ + unsigned int preload = ds->pcm_count * 2; + VPRINTK2("preload %d\n", preload); + hpi_handle_error(hpi_outstream_write_buf( + ss, ds->h_stream, + &s->runtime->dma_area[0], + preload, + &ds->format)); + } + + if (card->support_grouping) { + VPRINTK1("\t_group %dstream %d\n", s->stream, + s->number); + e = hpi_stream_group_add(ss, + dpcm->h_stream, + ds->h_stream); + if (!e) { + snd_pcm_trigger_done(s, substream); + } else { + hpi_handle_error(e); + break; + } + } else + break; + } + snd_printd("start\n"); + /* start the master stream */ + snd_card_asihpi_pcm_timer_start(substream); + hpi_handle_error(hpi_stream_start(ss, dpcm->h_stream)); + break; + + case SNDRV_PCM_TRIGGER_STOP: + snd_card_asihpi_pcm_timer_stop(substream); + snd_pcm_group_for_each_entry(s, substream) { + if (snd_pcm_substream_chip(s) != card) + continue; + + /*? workaround linked streams don't + transition to SETUP 20070706*/ + s->runtime->status->state = SNDRV_PCM_STATE_SETUP; + + if (card->support_grouping) { + VPRINTK1("\t_group %dstream %d\n", s->stream, + s->number); + snd_pcm_trigger_done(s, substream); + } else + break; + } + snd_printd("stop\n"); + + /* _prepare and _hwparams reset the stream */ + hpi_handle_error(hpi_stream_stop(ss, dpcm->h_stream)); + if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) + hpi_handle_error( + hpi_outstream_reset(ss, dpcm->h_stream)); + + if (card->support_grouping) + hpi_handle_error(hpi_stream_group_reset(ss, + dpcm->h_stream)); + break; + + case SNDRV_PCM_TRIGGER_PAUSE_RELEASE: + snd_printd("pause release\n"); + hpi_handle_error(hpi_stream_start(ss, dpcm->h_stream)); + snd_card_asihpi_pcm_timer_start(substream); + break; + case SNDRV_PCM_TRIGGER_PAUSE_PUSH: + snd_printd("pause\n"); + snd_card_asihpi_pcm_timer_stop(substream); + hpi_handle_error(hpi_stream_stop(ss, dpcm->h_stream)); + break; + default: + snd_printd("\tINVALID\n"); + return -EINVAL; + } + + return 0; +} + +static int +snd_card_asihpi_hw_free(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + if (dpcm->hpi_buffer_attached) + hpi_stream_host_buffer_detach(ss, dpcm->h_stream); + + snd_pcm_lib_free_pages(substream); + return 0; +} + +static void snd_card_asihpi_runtime_free(struct snd_pcm_runtime *runtime) +{ + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + kfree(dpcm); +} + +/*algorithm outline + Without linking degenerates to getting single stream pos etc + Without mmap 2nd loop degenerates to snd_pcm_period_elapsed +*/ +/* +buf_pos=get_buf_pos(s); +for_each_linked_stream(s) { + buf_pos=get_buf_pos(s); + min_buf_pos = modulo_min(min_buf_pos, buf_pos, pcm_size) + new_data = min(new_data, calc_new_data(buf_pos,irq_pos) +} +timer.expires = jiffies + predict_next_period_ready(min_buf_pos); +for_each_linked_stream(s) { + s->buf_pos = min_buf_pos; + if (new_data > pcm_count) { + if (mmap) { + irq_pos = (irq_pos + pcm_count) % pcm_size; + if (playback) { + write(pcm_count); + } else { + read(pcm_count); + } + } + snd_pcm_period_elapsed(s); + } +} +*/ + +/** Minimum of 2 modulo values. Works correctly when the difference between +* the values is less than half the modulus +*/ +static inline unsigned int modulo_min(unsigned int a, unsigned int b, + unsigned long int modulus) +{ + unsigned int result; + if (((a-b) % modulus) < (modulus/2)) + result = b; + else + result = a; + + return result; +} + +/** Timer function, equivalent to interrupt service routine for cards +*/ +static void snd_card_asihpi_timer_function(unsigned long data) +{ + struct snd_card_asihpi_pcm *dpcm = (struct snd_card_asihpi_pcm *)data; + struct snd_card_asihpi *card = snd_pcm_substream_chip(dpcm->substream); + struct snd_pcm_runtime *runtime; + struct snd_pcm_substream *s; + unsigned int newdata = 0; + unsigned int buf_pos, min_buf_pos = 0; + unsigned int remdata, xfercount, next_jiffies; + int first = 1; + u16 state; + u32 buffer_size, data_avail, samples_played, aux; + + /* find minimum newdata and buffer pos in group */ + snd_pcm_group_for_each_entry(s, dpcm->substream) { + struct snd_card_asihpi_pcm *ds = s->runtime->private_data; + runtime = s->runtime; + + if (snd_pcm_substream_chip(s) != card) + continue; + + hpi_handle_error(hpi_stream_get_info_ex(ss, + ds->h_stream, &state, + &buffer_size, &data_avail, + &samples_played, &aux)); + + /* number of bytes in on-card buffer */ + runtime->delay = aux; + + if (state == HPI_STATE_DRAINED) { + snd_printd(KERN_WARNING "outstream %d drained\n", + s->number); + snd_pcm_stop(s, SNDRV_PCM_STATE_XRUN); + return; + } + + if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) { + buf_pos = frames_to_bytes(runtime, samples_played); + } else { + buf_pos = data_avail + ds->pcm_irq_pos; + } + + if (first) { + /* can't statically init min when wrap is involved */ + min_buf_pos = buf_pos; + newdata = (buf_pos - ds->pcm_irq_pos) % ds->pcm_size; + first = 0; + } else { + min_buf_pos = + modulo_min(min_buf_pos, buf_pos, UINT_MAX+1L); + newdata = min( + (buf_pos - ds->pcm_irq_pos) % ds->pcm_size, + newdata); + } + + VPRINTK1("PB timer hw_ptr x%04lX, appl_ptr x%04lX\n", + (unsigned long)frames_to_bytes(runtime, + runtime->status->hw_ptr), + (unsigned long)frames_to_bytes(runtime, + runtime->control->appl_ptr)); + VPRINTK1("%d S=%d, irq=%04X, pos=x%04X, left=x%04X," + " aux=x%04X space=x%04X\n", s->number, + state, ds->pcm_irq_pos, buf_pos, (int)data_avail, + (int)aux, buffer_size-data_avail); + } + + remdata = newdata % dpcm->pcm_count; + xfercount = newdata - remdata; /* a multiple of pcm_count */ + next_jiffies = ((dpcm->pcm_count-remdata) * HZ / dpcm->bytes_per_sec)+1; + next_jiffies = max(next_jiffies, 2U * HZ / 1000U); + dpcm->timer.expires = jiffies + next_jiffies; + VPRINTK1("jif %d buf pos x%04X newdata x%04X xc x%04X\n", + next_jiffies, min_buf_pos, newdata, xfercount); + + snd_pcm_group_for_each_entry(s, dpcm->substream) { + struct snd_card_asihpi_pcm *ds = s->runtime->private_data; + ds->pcm_buf_pos = min_buf_pos; + + if (xfercount) { + if (card->support_mmap) { + ds->pcm_irq_pos = ds->pcm_irq_pos + xfercount; + if (s->stream == SNDRV_PCM_STREAM_PLAYBACK) { + VPRINTK2("write OS%d x%04x\n", + s->number, + ds->pcm_count); + hpi_handle_error( + hpi_outstream_write_buf( + ss, ds->h_stream, + &s->runtime-> + dma_area[0], + xfercount, + &ds->format)); + } else { + VPRINTK2("read IS%d x%04x\n", + s->number, + dpcm->pcm_count); + hpi_handle_error( + hpi_instream_read_buf( + ss, ds->h_stream, + NULL, xfercount)); + } + } /* else R/W will be handled by read/write callbacks */ + snd_pcm_period_elapsed(s); + } + } + + if (dpcm->respawn_timer) + add_timer(&dpcm->timer); +} + +/***************************** PLAYBACK OPS ****************/ +static int snd_card_asihpi_playback_ioctl(struct snd_pcm_substream *substream, + unsigned int cmd, void *arg) +{ + /* snd_printd(KERN_INFO "Playback ioctl %d\n", cmd); */ + return snd_pcm_lib_ioctl(substream, cmd, arg); +} + +static int snd_card_asihpi_playback_prepare(struct snd_pcm_substream * + substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + + snd_printd(KERN_INFO "playback prepare %d\n", substream->number); + + hpi_handle_error(hpi_outstream_reset(ss, dpcm->h_stream)); + dpcm->pcm_irq_pos = 0; + dpcm->pcm_buf_pos = 0; + + return 0; +} + +static snd_pcm_uframes_t +snd_card_asihpi_playback_pointer(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + snd_pcm_uframes_t ptr; + + u32 samples_played; + u16 err; + + if (!snd_pcm_stream_linked(substream)) { + /* NOTE, can use samples played for playback position here and + * in timer fn because it LAGS the actual read pointer, and is a + * better representation of actual playout position + */ + err = hpi_outstream_get_info_ex(ss, dpcm->h_stream, NULL, + NULL, NULL, + &samples_played, NULL); + hpi_handle_error(err); + + dpcm->pcm_buf_pos = frames_to_bytes(runtime, samples_played); + } + /* else must return most conservative value found in timer func + * by looping over all streams + */ + + ptr = bytes_to_frames(runtime, dpcm->pcm_buf_pos % dpcm->pcm_size); + VPRINTK2("playback_pointer=%04ld\n", (unsigned long)ptr); + return ptr; +} + +static void snd_card_asihpi_playback_format(struct snd_card_asihpi *asihpi, + u32 h_stream, + struct snd_pcm_hardware *pcmhw) +{ + struct hpi_format hpi_format; + u16 format; + u16 err; + u32 h_control; + u32 sample_rate = 48000; + + /* on cards without SRC, must query at valid rate, + * maybe set by external sync + */ + err = hpi_mixer_get_control(ss, asihpi->h_mixer, + HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0, + HPI_CONTROL_SAMPLECLOCK, &h_control); + + if (!err) + err = hpi_sample_clock_get_sample_rate(ss, h_control, + &sample_rate); + + for (format = HPI_FORMAT_PCM8_UNSIGNED; + format <= HPI_FORMAT_PCM24_SIGNED; format++) { + err = hpi_format_create(&hpi_format, + 2, format, sample_rate, 128000, 0); + if (!err) + err = hpi_outstream_query_format(ss, h_stream, + &hpi_format); + if (!err && (hpi_to_alsa_formats[format] != -1)) + pcmhw->formats |= + (1ULL << hpi_to_alsa_formats[format]); + } +} + +static struct snd_pcm_hardware snd_card_asihpi_playback = { + .channels_min = 1, + .channels_max = 2, + .buffer_bytes_max = BUFFER_BYTES_MAX, + .period_bytes_min = PERIOD_BYTES_MIN, + .period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN, + .periods_min = PERIODS_MIN, + .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN, + .fifo_size = 0, +}; + +static int snd_card_asihpi_playback_open(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm; + struct snd_card_asihpi *card = snd_pcm_substream_chip(substream); + int err; + + dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL); + if (dpcm == NULL) + return -ENOMEM; + + err = + hpi_outstream_open(ss, card->adapter_index, + substream->number, &dpcm->h_stream); + hpi_handle_error(err); + if (err) + kfree(dpcm); + if (err == HPI_ERROR_OBJ_ALREADY_OPEN) + return -EBUSY; + if (err) + return -EIO; + + /*? also check ASI5000 samplerate source + If external, only support external rate. + If internal and other stream playing, cant switch + */ + + init_timer(&dpcm->timer); + dpcm->timer.data = (unsigned long) dpcm; + dpcm->timer.function = snd_card_asihpi_timer_function; + dpcm->substream = substream; + runtime->private_data = dpcm; + runtime->private_free = snd_card_asihpi_runtime_free; + + snd_card_asihpi_playback.channels_max = card->out_max_chans; + /*?snd_card_asihpi_playback.period_bytes_min = + card->out_max_chans * 4096; */ + + snd_card_asihpi_playback_format(card, dpcm->h_stream, + &snd_card_asihpi_playback); + + snd_card_asihpi_pcm_samplerates(card, &snd_card_asihpi_playback); + + snd_card_asihpi_playback.info = SNDRV_PCM_INFO_INTERLEAVED | + SNDRV_PCM_INFO_DOUBLE | + SNDRV_PCM_INFO_BATCH | + SNDRV_PCM_INFO_BLOCK_TRANSFER | + SNDRV_PCM_INFO_PAUSE; + + if (card->support_mmap) + snd_card_asihpi_playback.info |= SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID; + + if (card->support_grouping) + snd_card_asihpi_playback.info |= SNDRV_PCM_INFO_SYNC_START; + + /* struct is copied, so can create initializer dynamically */ + runtime->hw = snd_card_asihpi_playback; + + if (card->support_mmap) + err = snd_pcm_hw_constraint_pow2(runtime, 0, + SNDRV_PCM_HW_PARAM_BUFFER_BYTES); + if (err < 0) + return err; + + snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, + card->update_interval_frames); + snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, + card->update_interval_frames * 4, UINT_MAX); + + snd_pcm_set_sync(substream); + + snd_printd(KERN_INFO "playback open\n"); + + return 0; +} + +static int snd_card_asihpi_playback_close(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + + hpi_handle_error(hpi_outstream_close(ss, dpcm->h_stream)); + snd_printd(KERN_INFO "playback close\n"); + + return 0; +} + +static int snd_card_asihpi_playback_copy(struct snd_pcm_substream *substream, + int channel, + snd_pcm_uframes_t pos, + void __user *src, + snd_pcm_uframes_t count) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + unsigned int len; + + len = frames_to_bytes(runtime, count); + + if (copy_from_user(runtime->dma_area, src, len)) + return -EFAULT; + + VPRINTK2(KERN_DEBUG "playback copy%d %u bytes\n", + substream->number, len); + + hpi_handle_error(hpi_outstream_write_buf(ss, dpcm->h_stream, + runtime->dma_area, len, &dpcm->format)); + + return 0; +} + +static int snd_card_asihpi_playback_silence(struct snd_pcm_substream * + substream, int channel, + snd_pcm_uframes_t pos, + snd_pcm_uframes_t count) +{ + unsigned int len; + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + + len = frames_to_bytes(runtime, count); + snd_printd(KERN_INFO "playback silence %u bytes\n", len); + + memset(runtime->dma_area, 0, len); + hpi_handle_error(hpi_outstream_write_buf(ss, dpcm->h_stream, + runtime->dma_area, len, &dpcm->format)); + return 0; +} + +static struct snd_pcm_ops snd_card_asihpi_playback_ops = { + .open = snd_card_asihpi_playback_open, + .close = snd_card_asihpi_playback_close, + .ioctl = snd_card_asihpi_playback_ioctl, + .hw_params = snd_card_asihpi_pcm_hw_params, + .hw_free = snd_card_asihpi_hw_free, + .prepare = snd_card_asihpi_playback_prepare, + .trigger = snd_card_asihpi_trigger, + .pointer = snd_card_asihpi_playback_pointer, + .copy = snd_card_asihpi_playback_copy, + .silence = snd_card_asihpi_playback_silence, +}; + +static struct snd_pcm_ops snd_card_asihpi_playback_mmap_ops = { + .open = snd_card_asihpi_playback_open, + .close = snd_card_asihpi_playback_close, + .ioctl = snd_card_asihpi_playback_ioctl, + .hw_params = snd_card_asihpi_pcm_hw_params, + .hw_free = snd_card_asihpi_hw_free, + .prepare = snd_card_asihpi_playback_prepare, + .trigger = snd_card_asihpi_trigger, + .pointer = snd_card_asihpi_playback_pointer, +}; + +/***************************** CAPTURE OPS ****************/ +static snd_pcm_uframes_t +snd_card_asihpi_capture_pointer(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + + VPRINTK2("capture pointer %d=%d\n", + substream->number, dpcm->pcm_buf_pos); + /* NOTE Unlike playback can't use actual dwSamplesPlayed + for the capture position, because those samples aren't yet in + the local buffer available for reading. + */ + return bytes_to_frames(runtime, dpcm->pcm_buf_pos % dpcm->pcm_size); +} + +static int snd_card_asihpi_capture_ioctl(struct snd_pcm_substream *substream, + unsigned int cmd, void *arg) +{ + return snd_pcm_lib_ioctl(substream, cmd, arg); +} + +static int snd_card_asihpi_capture_prepare(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + + hpi_handle_error(hpi_instream_reset(ss, dpcm->h_stream)); + dpcm->pcm_irq_pos = 0; + dpcm->pcm_buf_pos = 0; + + snd_printd("capture prepare %d\n", substream->number); + return 0; +} + + + +static void snd_card_asihpi_capture_format(struct snd_card_asihpi *asihpi, + u32 h_stream, + struct snd_pcm_hardware *pcmhw) +{ + struct hpi_format hpi_format; + u16 format; + u16 err; + u32 h_control; + u32 sample_rate = 48000; + + /* on cards without SRC, must query at valid rate, + maybe set by external sync */ + err = hpi_mixer_get_control(ss, asihpi->h_mixer, + HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0, + HPI_CONTROL_SAMPLECLOCK, &h_control); + + if (!err) + err = hpi_sample_clock_get_sample_rate(ss, h_control, + &sample_rate); + + for (format = HPI_FORMAT_PCM8_UNSIGNED; + format <= HPI_FORMAT_PCM24_SIGNED; format++) { + + err = hpi_format_create(&hpi_format, 2, format, + sample_rate, 128000, 0); + if (!err) + err = hpi_instream_query_format(ss, h_stream, + &hpi_format); + if (!err) + pcmhw->formats |= + (1ULL << hpi_to_alsa_formats[format]); + } +} + + +static struct snd_pcm_hardware snd_card_asihpi_capture = { + .channels_min = 1, + .channels_max = 2, + .buffer_bytes_max = BUFFER_BYTES_MAX, + .period_bytes_min = PERIOD_BYTES_MIN, + .period_bytes_max = BUFFER_BYTES_MAX / PERIODS_MIN, + .periods_min = PERIODS_MIN, + .periods_max = BUFFER_BYTES_MAX / PERIOD_BYTES_MIN, + .fifo_size = 0, +}; + +static int snd_card_asihpi_capture_open(struct snd_pcm_substream *substream) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi *card = snd_pcm_substream_chip(substream); + struct snd_card_asihpi_pcm *dpcm; + int err; + + dpcm = kzalloc(sizeof(*dpcm), GFP_KERNEL); + if (dpcm == NULL) + return -ENOMEM; + + snd_printd("hpi_instream_open adapter %d stream %d\n", + card->adapter_index, substream->number); + + err = hpi_handle_error( + hpi_instream_open(ss, card->adapter_index, + substream->number, &dpcm->h_stream)); + if (err) + kfree(dpcm); + if (err == HPI_ERROR_OBJ_ALREADY_OPEN) + return -EBUSY; + if (err) + return -EIO; + + + init_timer(&dpcm->timer); + dpcm->timer.data = (unsigned long) dpcm; + dpcm->timer.function = snd_card_asihpi_timer_function; + dpcm->substream = substream; + runtime->private_data = dpcm; + runtime->private_free = snd_card_asihpi_runtime_free; + + snd_card_asihpi_capture.channels_max = card->in_max_chans; + snd_card_asihpi_capture_format(card, dpcm->h_stream, + &snd_card_asihpi_capture); + snd_card_asihpi_pcm_samplerates(card, &snd_card_asihpi_capture); + snd_card_asihpi_capture.info = SNDRV_PCM_INFO_INTERLEAVED; + + if (card->support_mmap) + snd_card_asihpi_capture.info |= SNDRV_PCM_INFO_MMAP | + SNDRV_PCM_INFO_MMAP_VALID; + + runtime->hw = snd_card_asihpi_capture; + + if (card->support_mmap) + err = snd_pcm_hw_constraint_pow2(runtime, 0, + SNDRV_PCM_HW_PARAM_BUFFER_BYTES); + if (err < 0) + return err; + + snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, + card->update_interval_frames); + snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_PERIOD_SIZE, + card->update_interval_frames * 2, UINT_MAX); + + snd_pcm_set_sync(substream); + + return 0; +} + +static int snd_card_asihpi_capture_close(struct snd_pcm_substream *substream) +{ + struct snd_card_asihpi_pcm *dpcm = substream->runtime->private_data; + + hpi_handle_error(hpi_instream_close(ss, dpcm->h_stream)); + return 0; +} + +static int snd_card_asihpi_capture_copy(struct snd_pcm_substream *substream, + int channel, snd_pcm_uframes_t pos, + void __user *dst, snd_pcm_uframes_t count) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_card_asihpi_pcm *dpcm = runtime->private_data; + u32 data_size; + + data_size = frames_to_bytes(runtime, count); + + VPRINTK2("capture copy%d %d bytes\n", substream->number, data_size); + hpi_handle_error(hpi_instream_read_buf(ss, dpcm->h_stream, + runtime->dma_area, data_size)); + + /* Used by capture_pointer */ + dpcm->pcm_irq_pos = dpcm->pcm_irq_pos + data_size; + + if (copy_to_user(dst, runtime->dma_area, data_size)) + return -EFAULT; + + return 0; +} + +static struct snd_pcm_ops snd_card_asihpi_capture_mmap_ops = { + .open = snd_card_asihpi_capture_open, + .close = snd_card_asihpi_capture_close, + .ioctl = snd_card_asihpi_capture_ioctl, + .hw_params = snd_card_asihpi_pcm_hw_params, + .hw_free = snd_card_asihpi_hw_free, + .prepare = snd_card_asihpi_capture_prepare, + .trigger = snd_card_asihpi_trigger, + .pointer = snd_card_asihpi_capture_pointer, +}; + +static struct snd_pcm_ops snd_card_asihpi_capture_ops = { + .open = snd_card_asihpi_capture_open, + .close = snd_card_asihpi_capture_close, + .ioctl = snd_card_asihpi_capture_ioctl, + .hw_params = snd_card_asihpi_pcm_hw_params, + .hw_free = snd_card_asihpi_hw_free, + .prepare = snd_card_asihpi_capture_prepare, + .trigger = snd_card_asihpi_trigger, + .pointer = snd_card_asihpi_capture_pointer, + .copy = snd_card_asihpi_capture_copy +}; + +static int __devinit snd_card_asihpi_pcm_new(struct snd_card_asihpi *asihpi, + int device, int substreams) +{ + struct snd_pcm *pcm; + int err; + + err = snd_pcm_new(asihpi->card, "asihpi PCM", device, + asihpi->num_outstreams, asihpi->num_instreams, + &pcm); + if (err < 0) + return err; + /* pointer to ops struct is stored, dont change ops afterwards! */ + if (asihpi->support_mmap) { + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, + &snd_card_asihpi_playback_mmap_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, + &snd_card_asihpi_capture_mmap_ops); + } else { + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, + &snd_card_asihpi_playback_ops); + snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, + &snd_card_asihpi_capture_ops); + } + + pcm->private_data = asihpi; + pcm->info_flags = 0; + strcpy(pcm->name, "asihpi PCM"); + + /*? do we want to emulate MMAP for non-BBM cards? + Jack doesn't work with ALSAs MMAP emulation - WHY NOT? */ + snd_pcm_lib_preallocate_pages_for_all(pcm, SNDRV_DMA_TYPE_DEV, + snd_dma_pci_data(asihpi->pci), + 64*1024, BUFFER_BYTES_MAX); + + return 0; +} + +/***************************** MIXER CONTROLS ****************/ +struct hpi_control { + u32 h_control; + u16 control_type; + u16 src_node_type; + u16 src_node_index; + u16 dst_node_type; + u16 dst_node_index; + u16 band; + char name[44]; /* copied to snd_ctl_elem_id.name[44]; */ +}; + +static char *asihpi_tuner_band_names[] = +{ + "invalid", + "AM", + "FM mono", + "TV NTSC-M", + "FM stereo", + "AUX", + "TV PAL BG", + "TV PAL I", + "TV PAL DK", + "TV SECAM", +}; + +compile_time_assert( + (ARRAY_SIZE(asihpi_tuner_band_names) == + (HPI_TUNER_BAND_LAST+1)), + assert_tuner_band_names_size); + +#if ASI_STYLE_NAMES +static char *asihpi_src_names[] = +{ + "no source", + "outstream", + "line_in", + "aes_in", + "tuner", + "RF", + "clock", + "bitstr", + "mic", + "cobranet", + "analog_in", + "adapter", +}; +#else +static char *asihpi_src_names[] = +{ + "no source", + "PCM playback", + "line in", + "digital in", + "tuner", + "RF", + "clock", + "bitstream", + "mic", + "cobranet in", + "analog in", + "adapter", +}; +#endif + +compile_time_assert( + (ARRAY_SIZE(asihpi_src_names) == + (HPI_SOURCENODE_LAST_INDEX-HPI_SOURCENODE_BASE+1)), + assert_src_names_size); + +#if ASI_STYLE_NAMES +static char *asihpi_dst_names[] = +{ + "no destination", + "instream", + "line_out", + "aes_out", + "RF", + "speaker" , + "cobranet", + "analog_out", +}; +#else +static char *asihpi_dst_names[] = +{ + "no destination", + "PCM capture", + "line out", + "digital out", + "RF", + "speaker", + "cobranet out", + "analog out" +}; +#endif + +compile_time_assert( + (ARRAY_SIZE(asihpi_dst_names) == + (HPI_DESTNODE_LAST_INDEX-HPI_DESTNODE_BASE+1)), + assert_dst_names_size); + +static inline int ctl_add(struct snd_card *card, struct snd_kcontrol_new *ctl, + struct snd_card_asihpi *asihpi) +{ + int err; + + err = snd_ctl_add(card, snd_ctl_new1(ctl, asihpi)); + if (err < 0) + return err; + else if (mixer_dump) + snd_printk(KERN_INFO "added %s(%d)\n", ctl->name, ctl->index); + + return 0; +} + +/* Convert HPI control name and location into ALSA control name */ +static void asihpi_ctl_init(struct snd_kcontrol_new *snd_control, + struct hpi_control *hpi_ctl, + char *name) +{ + memset(snd_control, 0, sizeof(*snd_control)); + snd_control->name = hpi_ctl->name; + snd_control->private_value = hpi_ctl->h_control; + snd_control->iface = SNDRV_CTL_ELEM_IFACE_MIXER; + snd_control->index = 0; + + if (hpi_ctl->src_node_type && hpi_ctl->dst_node_type) + sprintf(hpi_ctl->name, "%s%d to %s%d %s", + asihpi_src_names[hpi_ctl->src_node_type], + hpi_ctl->src_node_index, + asihpi_dst_names[hpi_ctl->dst_node_type], + hpi_ctl->dst_node_index, + name); + else if (hpi_ctl->dst_node_type) { + sprintf(hpi_ctl->name, "%s%d %s", + asihpi_dst_names[hpi_ctl->dst_node_type], + hpi_ctl->dst_node_index, + name); + } else { + sprintf(hpi_ctl->name, "%s%d %s", + asihpi_src_names[hpi_ctl->src_node_type], + hpi_ctl->src_node_index, + name); + } +} + +/*------------------------------------------------------------ + Volume controls + ------------------------------------------------------------*/ +#define VOL_STEP_mB 1 +static int snd_asihpi_volume_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + u32 h_control = kcontrol->private_value; + u16 err; + /* native gains are in millibels */ + short min_gain_mB; + short max_gain_mB; + short step_gain_mB; + + err = hpi_volume_query_range(ss, h_control, + &min_gain_mB, &max_gain_mB, &step_gain_mB); + if (err) { + max_gain_mB = 0; + min_gain_mB = -10000; + step_gain_mB = VOL_STEP_mB; + } + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 2; + uinfo->value.integer.min = min_gain_mB / VOL_STEP_mB; + uinfo->value.integer.max = max_gain_mB / VOL_STEP_mB; + uinfo->value.integer.step = step_gain_mB / VOL_STEP_mB; + return 0; +} + +static int snd_asihpi_volume_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + short an_gain_mB[HPI_MAX_CHANNELS]; + + hpi_handle_error(hpi_volume_get_gain(ss, h_control, an_gain_mB)); + ucontrol->value.integer.value[0] = an_gain_mB[0] / VOL_STEP_mB; + ucontrol->value.integer.value[1] = an_gain_mB[1] / VOL_STEP_mB; + + return 0; +} + +static int snd_asihpi_volume_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int change; + u32 h_control = kcontrol->private_value; + short an_gain_mB[HPI_MAX_CHANNELS]; + + an_gain_mB[0] = + (ucontrol->value.integer.value[0]) * VOL_STEP_mB; + an_gain_mB[1] = + (ucontrol->value.integer.value[1]) * VOL_STEP_mB; + /* change = asihpi->mixer_volume[addr][0] != left || + asihpi->mixer_volume[addr][1] != right; + */ + change = 1; + hpi_handle_error(hpi_volume_set_gain(ss, h_control, an_gain_mB)); + return change; +} + +static const DECLARE_TLV_DB_SCALE(db_scale_100, -10000, VOL_STEP_mB, 0); + +static int __devinit snd_asihpi_volume_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + + asihpi_ctl_init(&snd_control, hpi_ctl, "volume"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ; + snd_control.info = snd_asihpi_volume_info; + snd_control.get = snd_asihpi_volume_get; + snd_control.put = snd_asihpi_volume_put; + snd_control.tlv.p = db_scale_100; + + return ctl_add(card, &snd_control, asihpi); +} + +/*------------------------------------------------------------ + Level controls + ------------------------------------------------------------*/ +static int snd_asihpi_level_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + u32 h_control = kcontrol->private_value; + u16 err; + short min_gain_mB; + short max_gain_mB; + short step_gain_mB; + + err = + hpi_level_query_range(ss, h_control, &min_gain_mB, + &max_gain_mB, &step_gain_mB); + if (err) { + max_gain_mB = 2400; + min_gain_mB = -1000; + step_gain_mB = 100; + } + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 2; + uinfo->value.integer.min = min_gain_mB / HPI_UNITS_PER_dB; + uinfo->value.integer.max = max_gain_mB / HPI_UNITS_PER_dB; + uinfo->value.integer.step = step_gain_mB / HPI_UNITS_PER_dB; + return 0; +} + +static int snd_asihpi_level_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + short an_gain_mB[HPI_MAX_CHANNELS]; + + hpi_handle_error(hpi_level_get_gain(ss, h_control, an_gain_mB)); + ucontrol->value.integer.value[0] = + an_gain_mB[0] / HPI_UNITS_PER_dB; + ucontrol->value.integer.value[1] = + an_gain_mB[1] / HPI_UNITS_PER_dB; + + return 0; +} + +static int snd_asihpi_level_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int change; + u32 h_control = kcontrol->private_value; + short an_gain_mB[HPI_MAX_CHANNELS]; + + an_gain_mB[0] = + (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB; + an_gain_mB[1] = + (ucontrol->value.integer.value[1]) * HPI_UNITS_PER_dB; + /* change = asihpi->mixer_level[addr][0] != left || + asihpi->mixer_level[addr][1] != right; + */ + change = 1; + hpi_handle_error(hpi_level_set_gain(ss, h_control, an_gain_mB)); + return change; +} + +static const DECLARE_TLV_DB_SCALE(db_scale_level, -1000, 100, 0); + +static int __devinit snd_asihpi_level_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + + /* can't use 'volume' cos some nodes have volume as well */ + asihpi_ctl_init(&snd_control, hpi_ctl, "level"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE | + SNDRV_CTL_ELEM_ACCESS_TLV_READ; + snd_control.info = snd_asihpi_level_info; + snd_control.get = snd_asihpi_level_get; + snd_control.put = snd_asihpi_level_put; + snd_control.tlv.p = db_scale_level; + + return ctl_add(card, &snd_control, asihpi); +} + +/*------------------------------------------------------------ + AESEBU controls + ------------------------------------------------------------*/ + +/* AESEBU format */ +static char *asihpi_aesebu_format_names[] = +{ + "N/A", + "S/PDIF", + "AES/EBU", +}; + +static int snd_asihpi_aesebu_format_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + uinfo->value.enumerated.items = 3; + + if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items) + uinfo->value.enumerated.item = + uinfo->value.enumerated.items - 1; + + strcpy(uinfo->value.enumerated.name, + asihpi_aesebu_format_names[uinfo->value.enumerated.item]); + + return 0; +} + +static int snd_asihpi_aesebu_format_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol, + u16 (*func)(const struct hpi_hsubsys *, u32, u16 *)) +{ + u32 h_control = kcontrol->private_value; + u16 source, err; + + err = func(ss, h_control, &source); + + /* default to N/A */ + ucontrol->value.enumerated.item[0] = 0; + /* return success but set the control to N/A */ + if (err) + return 0; + if (source == HPI_AESEBU_FORMAT_SPDIF) + ucontrol->value.enumerated.item[0] = 1; + if (source == HPI_AESEBU_FORMAT_AESEBU) + ucontrol->value.enumerated.item[0] = 2; + + return 0; +} + +static int snd_asihpi_aesebu_format_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol, + u16 (*func)(const struct hpi_hsubsys *, u32, u16)) +{ + u32 h_control = kcontrol->private_value; + + /* default to S/PDIF */ + u16 source = HPI_AESEBU_FORMAT_SPDIF; + + if (ucontrol->value.enumerated.item[0] == 1) + source = HPI_AESEBU_FORMAT_SPDIF; + if (ucontrol->value.enumerated.item[0] == 2) + source = HPI_AESEBU_FORMAT_AESEBU; + + if (func(ss, h_control, source) != 0) + return -EINVAL; + + return 1; +} + +static int snd_asihpi_aesebu_rx_format_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { + return snd_asihpi_aesebu_format_get(kcontrol, ucontrol, + HPI_AESEBU__receiver_get_format); +} + +static int snd_asihpi_aesebu_rx_format_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { + return snd_asihpi_aesebu_format_put(kcontrol, ucontrol, + HPI_AESEBU__receiver_set_format); +} + +static int snd_asihpi_aesebu_rxstatus_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 0X1F; + uinfo->value.integer.step = 1; + + return 0; +} + +static int snd_asihpi_aesebu_rxstatus_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { + + u32 h_control = kcontrol->private_value; + u16 status; + + hpi_handle_error(HPI_AESEBU__receiver_get_error_status( + ss, h_control, &status)); + ucontrol->value.integer.value[0] = status; + return 0; +} + +static int __devinit snd_asihpi_aesebu_rx_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + + asihpi_ctl_init(&snd_control, hpi_ctl, "format"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + snd_control.info = snd_asihpi_aesebu_format_info; + snd_control.get = snd_asihpi_aesebu_rx_format_get; + snd_control.put = snd_asihpi_aesebu_rx_format_put; + + + if (ctl_add(card, &snd_control, asihpi) < 0) + return -EINVAL; + + asihpi_ctl_init(&snd_control, hpi_ctl, "status"); + snd_control.access = + SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ; + snd_control.info = snd_asihpi_aesebu_rxstatus_info; + snd_control.get = snd_asihpi_aesebu_rxstatus_get; + + return ctl_add(card, &snd_control, asihpi); +} + +static int snd_asihpi_aesebu_tx_format_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { + return snd_asihpi_aesebu_format_get(kcontrol, ucontrol, + HPI_AESEBU__transmitter_get_format); +} + +static int snd_asihpi_aesebu_tx_format_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) { + return snd_asihpi_aesebu_format_put(kcontrol, ucontrol, + HPI_AESEBU__transmitter_set_format); +} + + +static int __devinit snd_asihpi_aesebu_tx_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + + asihpi_ctl_init(&snd_control, hpi_ctl, "format"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + snd_control.info = snd_asihpi_aesebu_format_info; + snd_control.get = snd_asihpi_aesebu_tx_format_get; + snd_control.put = snd_asihpi_aesebu_tx_format_put; + + return ctl_add(card, &snd_control, asihpi); +} + +/*------------------------------------------------------------ + Tuner controls + ------------------------------------------------------------*/ + +/* Gain */ + +static int snd_asihpi_tuner_gain_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + u32 h_control = kcontrol->private_value; + u16 err; + short idx; + u16 gain_range[3]; + + for (idx = 0; idx < 3; idx++) { + err = hpi_tuner_query_gain(ss, h_control, + idx, &gain_range[idx]); + if (err != 0) + return err; + } + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = ((int)gain_range[0]) / HPI_UNITS_PER_dB; + uinfo->value.integer.max = ((int)gain_range[1]) / HPI_UNITS_PER_dB; + uinfo->value.integer.step = ((int) gain_range[2]) / HPI_UNITS_PER_dB; + return 0; +} + +static int snd_asihpi_tuner_gain_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + /* + struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol); + */ + u32 h_control = kcontrol->private_value; + short gain; + + hpi_handle_error(hpi_tuner_get_gain(ss, h_control, &gain)); + ucontrol->value.integer.value[0] = gain / HPI_UNITS_PER_dB; + + return 0; +} + +static int snd_asihpi_tuner_gain_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + /* + struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol); + */ + u32 h_control = kcontrol->private_value; + short gain; + + gain = (ucontrol->value.integer.value[0]) * HPI_UNITS_PER_dB; + hpi_handle_error(hpi_tuner_set_gain(ss, h_control, gain)); + + return 1; +} + +/* Band */ + +static int asihpi_tuner_band_query(struct snd_kcontrol *kcontrol, + u16 *band_list, u32 len) { + u32 h_control = kcontrol->private_value; + u16 err = 0; + u32 i; + + for (i = 0; i < len; i++) { + err = hpi_tuner_query_band(ss, + h_control, i, &band_list[i]); + if (err != 0) + break; + } + + if (err && (err != HPI_ERROR_INVALID_OBJ_INDEX)) + return -EIO; + + return i; +} + +static int snd_asihpi_tuner_band_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + u16 tuner_bands[HPI_TUNER_BAND_LAST]; + int num_bands = 0; + + num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands, + HPI_TUNER_BAND_LAST); + + if (num_bands < 0) + return num_bands; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + uinfo->value.enumerated.items = num_bands; + + if (num_bands > 0) { + if (uinfo->value.enumerated.item >= + uinfo->value.enumerated.items) + uinfo->value.enumerated.item = + uinfo->value.enumerated.items - 1; + + strcpy(uinfo->value.enumerated.name, + asihpi_tuner_band_names[ + tuner_bands[uinfo->value.enumerated.item]]); + + } + return 0; +} + +static int snd_asihpi_tuner_band_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + /* + struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol); + */ + u16 band, idx; + u16 tuner_bands[HPI_TUNER_BAND_LAST]; + u32 num_bands = 0; + + num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands, + HPI_TUNER_BAND_LAST); + + hpi_handle_error(hpi_tuner_get_band(ss, h_control, &band)); + + ucontrol->value.enumerated.item[0] = -1; + for (idx = 0; idx < HPI_TUNER_BAND_LAST; idx++) + if (tuner_bands[idx] == band) { + ucontrol->value.enumerated.item[0] = idx; + break; + } + + return 0; +} + +static int snd_asihpi_tuner_band_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + /* + struct snd_card_asihpi *asihpi = snd_kcontrol_chip(kcontrol); + */ + u32 h_control = kcontrol->private_value; + u16 band; + u16 tuner_bands[HPI_TUNER_BAND_LAST]; + u32 num_bands = 0; + + num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands, + HPI_TUNER_BAND_LAST); + + band = tuner_bands[ucontrol->value.enumerated.item[0]]; + hpi_handle_error(hpi_tuner_set_band(ss, h_control, band)); + + return 1; +} + +/* Freq */ + +static int snd_asihpi_tuner_freq_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + u32 h_control = kcontrol->private_value; + u16 err; + u16 tuner_bands[HPI_TUNER_BAND_LAST]; + u16 num_bands = 0, band_iter, idx; + u32 freq_range[3], temp_freq_range[3]; + + num_bands = asihpi_tuner_band_query(kcontrol, tuner_bands, + HPI_TUNER_BAND_LAST); + + freq_range[0] = INT_MAX; + freq_range[1] = 0; + freq_range[2] = INT_MAX; + + for (band_iter = 0; band_iter < num_bands; band_iter++) { + for (idx = 0; idx < 3; idx++) { + err = hpi_tuner_query_frequency(ss, h_control, + idx, tuner_bands[band_iter], + &temp_freq_range[idx]); + if (err != 0) + return err; + } + + /* skip band with bogus stepping */ + if (temp_freq_range[2] <= 0) + continue; + + if (temp_freq_range[0] < freq_range[0]) + freq_range[0] = temp_freq_range[0]; + if (temp_freq_range[1] > freq_range[1]) + freq_range[1] = temp_freq_range[1]; + if (temp_freq_range[2] < freq_range[2]) + freq_range[2] = temp_freq_range[2]; + } + + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = ((int)freq_range[0]); + uinfo->value.integer.max = ((int)freq_range[1]); + uinfo->value.integer.step = ((int)freq_range[2]); + return 0; +} + +static int snd_asihpi_tuner_freq_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + u32 freq; + + hpi_handle_error(hpi_tuner_get_frequency(ss, h_control, &freq)); + ucontrol->value.integer.value[0] = freq; + + return 0; +} + +static int snd_asihpi_tuner_freq_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + u32 freq; + + freq = ucontrol->value.integer.value[0]; + hpi_handle_error(hpi_tuner_set_frequency(ss, h_control, freq)); + + return 1; +} + +/* Tuner control group initializer */ +static int __devinit snd_asihpi_tuner_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + + snd_control.private_value = hpi_ctl->h_control; + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + + if (!hpi_tuner_get_gain(ss, hpi_ctl->h_control, NULL)) { + asihpi_ctl_init(&snd_control, hpi_ctl, "gain"); + snd_control.info = snd_asihpi_tuner_gain_info; + snd_control.get = snd_asihpi_tuner_gain_get; + snd_control.put = snd_asihpi_tuner_gain_put; + + if (ctl_add(card, &snd_control, asihpi) < 0) + return -EINVAL; + } + + asihpi_ctl_init(&snd_control, hpi_ctl, "band"); + snd_control.info = snd_asihpi_tuner_band_info; + snd_control.get = snd_asihpi_tuner_band_get; + snd_control.put = snd_asihpi_tuner_band_put; + + if (ctl_add(card, &snd_control, asihpi) < 0) + return -EINVAL; + + asihpi_ctl_init(&snd_control, hpi_ctl, "freq"); + snd_control.info = snd_asihpi_tuner_freq_info; + snd_control.get = snd_asihpi_tuner_freq_get; + snd_control.put = snd_asihpi_tuner_freq_put; + + return ctl_add(card, &snd_control, asihpi); +} + +/*------------------------------------------------------------ + Meter controls + ------------------------------------------------------------*/ +static int snd_asihpi_meter_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = HPI_MAX_CHANNELS; + uinfo->value.integer.min = 0; + uinfo->value.integer.max = 0x7FFFFFFF; + return 0; +} + +/* linear values for 10dB steps */ +static int log2lin[] = { + 0x7FFFFFFF, /* 0dB */ + 679093956, + 214748365, + 67909396, + 21474837, + 6790940, + 2147484, /* -60dB */ + 679094, + 214748, /* -80 */ + 67909, + 21475, /* -100 */ + 6791, + 2147, + 679, + 214, + 68, + 21, + 7, + 2 +}; + +static int snd_asihpi_meter_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + short an_gain_mB[HPI_MAX_CHANNELS], i; + u16 err; + + err = hpi_meter_get_peak(ss, h_control, an_gain_mB); + + for (i = 0; i < HPI_MAX_CHANNELS; i++) { + if (err) { + ucontrol->value.integer.value[i] = 0; + } else if (an_gain_mB[i] >= 0) { + ucontrol->value.integer.value[i] = + an_gain_mB[i] << 16; + } else { + /* -ve is log value in millibels < -60dB, + * convert to (roughly!) linear, + */ + ucontrol->value.integer.value[i] = + log2lin[an_gain_mB[i] / -1000]; + } + } + return 0; +} + +static int __devinit snd_asihpi_meter_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl, int subidx) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + + asihpi_ctl_init(&snd_control, hpi_ctl, "meter"); + snd_control.access = + SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ; + snd_control.info = snd_asihpi_meter_info; + snd_control.get = snd_asihpi_meter_get; + + snd_control.index = subidx; + + return ctl_add(card, &snd_control, asihpi); +} + +/*------------------------------------------------------------ + Multiplexer controls + ------------------------------------------------------------*/ +static int snd_card_asihpi_mux_count_sources(struct snd_kcontrol *snd_control) +{ + u32 h_control = snd_control->private_value; + struct hpi_control hpi_ctl; + int s, err; + for (s = 0; s < 32; s++) { + err = hpi_multiplexer_query_source(ss, h_control, s, + &hpi_ctl. + src_node_type, + &hpi_ctl. + src_node_index); + if (err) + break; + } + return s; +} + +static int snd_asihpi_mux_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + int err; + u16 src_node_type, src_node_index; + u32 h_control = kcontrol->private_value; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + uinfo->value.enumerated.items = + snd_card_asihpi_mux_count_sources(kcontrol); + + if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items) + uinfo->value.enumerated.item = + uinfo->value.enumerated.items - 1; + + err = + hpi_multiplexer_query_source(ss, h_control, + uinfo->value.enumerated.item, + &src_node_type, &src_node_index); + + sprintf(uinfo->value.enumerated.name, "%s %d", + asihpi_src_names[src_node_type - HPI_SOURCENODE_BASE], + src_node_index); + return 0; +} + +static int snd_asihpi_mux_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + u16 source_type, source_index; + u16 src_node_type, src_node_index; + int s; + + hpi_handle_error(hpi_multiplexer_get_source(ss, h_control, + &source_type, &source_index)); + /* Should cache this search result! */ + for (s = 0; s < 256; s++) { + if (hpi_multiplexer_query_source(ss, h_control, s, + &src_node_type, &src_node_index)) + break; + + if ((source_type == src_node_type) + && (source_index == src_node_index)) { + ucontrol->value.enumerated.item[0] = s; + return 0; + } + } + snd_printd(KERN_WARNING + "control %x failed to match mux source %hu %hu\n", + h_control, source_type, source_index); + ucontrol->value.enumerated.item[0] = 0; + return 0; +} + +static int snd_asihpi_mux_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int change; + u32 h_control = kcontrol->private_value; + u16 source_type, source_index; + u16 e; + + change = 1; + + e = hpi_multiplexer_query_source(ss, h_control, + ucontrol->value.enumerated.item[0], + &source_type, &source_index); + if (!e) + hpi_handle_error( + hpi_multiplexer_set_source(ss, h_control, + source_type, source_index)); + return change; +} + + +static int __devinit snd_asihpi_mux_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + +#if ASI_STYLE_NAMES + asihpi_ctl_init(&snd_control, hpi_ctl, "multiplexer"); +#else + asihpi_ctl_init(&snd_control, hpi_ctl, "route"); +#endif + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + snd_control.info = snd_asihpi_mux_info; + snd_control.get = snd_asihpi_mux_get; + snd_control.put = snd_asihpi_mux_put; + + return ctl_add(card, &snd_control, asihpi); + +} + +/*------------------------------------------------------------ + Channel mode controls + ------------------------------------------------------------*/ +static int snd_asihpi_cmode_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + static char *mode_names[HPI_CHANNEL_MODE_LAST] = { + "normal", "swap", + "from_left", "from_right", + "to_left", "to_right" + }; + + u32 h_control = kcontrol->private_value; + u16 mode; + int i; + + /* HPI channel mode values can be from 1 to 6 + Some adapters only support a contiguous subset + */ + for (i = 0; i < HPI_CHANNEL_MODE_LAST; i++) + if (hpi_channel_mode_query_mode( + ss, h_control, i, &mode)) + break; + + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + uinfo->value.enumerated.items = i; + + if (uinfo->value.enumerated.item >= i) + uinfo->value.enumerated.item = i - 1; + + strcpy(uinfo->value.enumerated.name, + mode_names[uinfo->value.enumerated.item]); + + return 0; +} + +static int snd_asihpi_cmode_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + u16 mode; + + if (hpi_channel_mode_get(ss, h_control, &mode)) + mode = 1; + + ucontrol->value.enumerated.item[0] = mode - 1; + + return 0; +} + +static int snd_asihpi_cmode_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int change; + u32 h_control = kcontrol->private_value; + + change = 1; + + hpi_handle_error(hpi_channel_mode_set(ss, h_control, + ucontrol->value.enumerated.item[0] + 1)); + return change; +} + + +static int __devinit snd_asihpi_cmode_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + + asihpi_ctl_init(&snd_control, hpi_ctl, "channel mode"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE; + snd_control.info = snd_asihpi_cmode_info; + snd_control.get = snd_asihpi_cmode_get; + snd_control.put = snd_asihpi_cmode_put; + + return ctl_add(card, &snd_control, asihpi); +} + +/*------------------------------------------------------------ + Sampleclock source controls + ------------------------------------------------------------*/ + +static char *sampleclock_sources[MAX_CLOCKSOURCES] = + { "N/A", "local PLL", "AES/EBU sync", "word external", "word header", + "SMPTE", "AES/EBU in1", "auto", "network", "invalid", + "prev module", + "AES/EBU in2", "AES/EBU in3", "AES/EBU in4", "AES/EBU in5", + "AES/EBU in6", "AES/EBU in7", "AES/EBU in8"}; + + + +static int snd_asihpi_clksrc_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + struct snd_card_asihpi *asihpi = + (struct snd_card_asihpi *)(kcontrol->private_data); + struct clk_cache *clkcache = &asihpi->cc; + uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED; + uinfo->count = 1; + uinfo->value.enumerated.items = clkcache->count; + + if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items) + uinfo->value.enumerated.item = + uinfo->value.enumerated.items - 1; + + strcpy(uinfo->value.enumerated.name, + clkcache->s[uinfo->value.enumerated.item].name); + return 0; +} + +static int snd_asihpi_clksrc_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_card_asihpi *asihpi = + (struct snd_card_asihpi *)(kcontrol->private_data); + struct clk_cache *clkcache = &asihpi->cc; + u32 h_control = kcontrol->private_value; + u16 source, srcindex = 0; + int i; + + ucontrol->value.enumerated.item[0] = 0; + if (hpi_sample_clock_get_source(ss, h_control, &source)) + source = 0; + + if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT) + if (hpi_sample_clock_get_source_index(ss, h_control, &srcindex)) + srcindex = 0; + + for (i = 0; i < clkcache->count; i++) + if ((clkcache->s[i].source == source) && + (clkcache->s[i].index == srcindex)) + break; + + ucontrol->value.enumerated.item[0] = i; + + return 0; +} + +static int snd_asihpi_clksrc_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + struct snd_card_asihpi *asihpi = + (struct snd_card_asihpi *)(kcontrol->private_data); + struct clk_cache *clkcache = &asihpi->cc; + int change, item; + u32 h_control = kcontrol->private_value; + + change = 1; + item = ucontrol->value.enumerated.item[0]; + if (item >= clkcache->count) + item = clkcache->count-1; + + hpi_handle_error(hpi_sample_clock_set_source(ss, + h_control, clkcache->s[item].source)); + + if (clkcache->s[item].source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT) + hpi_handle_error(hpi_sample_clock_set_source_index(ss, + h_control, clkcache->s[item].index)); + return change; +} + +/*------------------------------------------------------------ + Clkrate controls + ------------------------------------------------------------*/ +/* Need to change this to enumerated control with list of rates */ +static int snd_asihpi_clklocal_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 8000; + uinfo->value.integer.max = 192000; + uinfo->value.integer.step = 100; + + return 0; +} + +static int snd_asihpi_clklocal_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + u32 rate; + u16 e; + + e = hpi_sample_clock_get_local_rate(ss, h_control, &rate); + if (!e) + ucontrol->value.integer.value[0] = rate; + else + ucontrol->value.integer.value[0] = 0; + return 0; +} + +static int snd_asihpi_clklocal_put(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + int change; + u32 h_control = kcontrol->private_value; + + /* change = asihpi->mixer_clkrate[addr][0] != left || + asihpi->mixer_clkrate[addr][1] != right; + */ + change = 1; + hpi_handle_error(hpi_sample_clock_set_local_rate(ss, h_control, + ucontrol->value.integer.value[0])); + return change; +} + +static int snd_asihpi_clkrate_info(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_info *uinfo) +{ + uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER; + uinfo->count = 1; + uinfo->value.integer.min = 8000; + uinfo->value.integer.max = 192000; + uinfo->value.integer.step = 100; + + return 0; +} + +static int snd_asihpi_clkrate_get(struct snd_kcontrol *kcontrol, + struct snd_ctl_elem_value *ucontrol) +{ + u32 h_control = kcontrol->private_value; + u32 rate; + u16 e; + + e = hpi_sample_clock_get_sample_rate(ss, h_control, &rate); + if (!e) + ucontrol->value.integer.value[0] = rate; + else + ucontrol->value.integer.value[0] = 0; + return 0; +} + +static int __devinit snd_asihpi_sampleclock_add(struct snd_card_asihpi *asihpi, + struct hpi_control *hpi_ctl) +{ + struct snd_card *card = asihpi->card; + struct snd_kcontrol_new snd_control; + + struct clk_cache *clkcache = &asihpi->cc; + u32 hSC = hpi_ctl->h_control; + int has_aes_in = 0; + int i, j; + u16 source; + + snd_control.private_value = hpi_ctl->h_control; + + clkcache->has_local = 0; + + for (i = 0; i <= HPI_SAMPLECLOCK_SOURCE_LAST; i++) { + if (hpi_sample_clock_query_source(ss, hSC, + i, &source)) + break; + clkcache->s[i].source = source; + clkcache->s[i].index = 0; + clkcache->s[i].name = sampleclock_sources[source]; + if (source == HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT) + has_aes_in = 1; + if (source == HPI_SAMPLECLOCK_SOURCE_LOCAL) + clkcache->has_local = 1; + } + if (has_aes_in) + /* already will have picked up index 0 above */ + for (j = 1; j < 8; j++) { + if (hpi_sample_clock_query_source_index(ss, hSC, + j, HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT, + &source)) + break; + clkcache->s[i].source = + HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT; + clkcache->s[i].index = j; + clkcache->s[i].name = sampleclock_sources[ + j+HPI_SAMPLECLOCK_SOURCE_LAST]; + i++; + } + clkcache->count = i; + + asihpi_ctl_init(&snd_control, hpi_ctl, "source"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ; + snd_control.info = snd_asihpi_clksrc_info; + snd_control.get = snd_asihpi_clksrc_get; + snd_control.put = snd_asihpi_clksrc_put; + if (ctl_add(card, &snd_control, asihpi) < 0) + return -EINVAL; + + + if (clkcache->has_local) { + asihpi_ctl_init(&snd_control, hpi_ctl, "local_rate"); + snd_control.access = SNDRV_CTL_ELEM_ACCESS_READWRITE ; + snd_control.info = snd_asihpi_clklocal_info; + snd_control.get = snd_asihpi_clklocal_get; + snd_control.put = snd_asihpi_clklocal_put; + + + if (ctl_add(card, &snd_control, asihpi) < 0) + return -EINVAL; + } + + asihpi_ctl_init(&snd_control, hpi_ctl, "rate"); + snd_control.access = + SNDRV_CTL_ELEM_ACCESS_VOLATILE | SNDRV_CTL_ELEM_ACCESS_READ; + snd_control.info = snd_asihpi_clkrate_info; + snd_control.get = snd_asihpi_clkrate_get; + + return ctl_add(card, &snd_control, asihpi); +} +/*------------------------------------------------------------ + Mixer + ------------------------------------------------------------*/ + +static int __devinit snd_card_asihpi_mixer_new(struct snd_card_asihpi *asihpi) +{ + struct snd_card *card = asihpi->card; + unsigned int idx = 0; + unsigned int subindex = 0; + int err; + struct hpi_control hpi_ctl, prev_ctl; + + if (snd_BUG_ON(!asihpi)) + return -EINVAL; + strcpy(card->mixername, "asihpi mixer"); + + err = + hpi_mixer_open(ss, asihpi->adapter_index, + &asihpi->h_mixer); + hpi_handle_error(err); + if (err) + return -err; + + for (idx = 0; idx < 2000; idx++) { + err = hpi_mixer_get_control_by_index( + ss, asihpi->h_mixer, + idx, + &hpi_ctl.src_node_type, + &hpi_ctl.src_node_index, + &hpi_ctl.dst_node_type, + &hpi_ctl.dst_node_index, + &hpi_ctl.control_type, + &hpi_ctl.h_control); + if (err) { + if (err == HPI_ERROR_CONTROL_DISABLED) { + if (mixer_dump) + snd_printk(KERN_INFO + "disabled HPI control(%d)\n", + idx); + continue; + } else + break; + + } + + hpi_ctl.src_node_type -= HPI_SOURCENODE_BASE; + hpi_ctl.dst_node_type -= HPI_DESTNODE_BASE; + + /* ASI50xx in SSX mode has multiple meters on the same node. + Use subindex to create distinct ALSA controls + for any duplicated controls. + */ + if ((hpi_ctl.control_type == prev_ctl.control_type) && + (hpi_ctl.src_node_type == prev_ctl.src_node_type) && + (hpi_ctl.src_node_index == prev_ctl.src_node_index) && + (hpi_ctl.dst_node_type == prev_ctl.dst_node_type) && + (hpi_ctl.dst_node_index == prev_ctl.dst_node_index)) + subindex++; + else + subindex = 0; + + prev_ctl = hpi_ctl; + + switch (hpi_ctl.control_type) { + case HPI_CONTROL_VOLUME: + err = snd_asihpi_volume_add(asihpi, &hpi_ctl); + break; + case HPI_CONTROL_LEVEL: + err = snd_asihpi_level_add(asihpi, &hpi_ctl); + break; + case HPI_CONTROL_MULTIPLEXER: + err = snd_asihpi_mux_add(asihpi, &hpi_ctl); + break; + case HPI_CONTROL_CHANNEL_MODE: + err = snd_asihpi_cmode_add(asihpi, &hpi_ctl); + break; + case HPI_CONTROL_METER: + err = snd_asihpi_meter_add(asihpi, &hpi_ctl, subindex); + break; + case HPI_CONTROL_SAMPLECLOCK: + err = snd_asihpi_sampleclock_add( + asihpi, &hpi_ctl); + break; + case HPI_CONTROL_CONNECTION: /* ignore these */ + continue; + case HPI_CONTROL_TUNER: + err = snd_asihpi_tuner_add(asihpi, &hpi_ctl); + break; + case HPI_CONTROL_AESEBU_TRANSMITTER: + err = snd_asihpi_aesebu_tx_add(asihpi, &hpi_ctl); + break; + case HPI_CONTROL_AESEBU_RECEIVER: + err = snd_asihpi_aesebu_rx_add(asihpi, &hpi_ctl); + break; + case HPI_CONTROL_VOX: + case HPI_CONTROL_BITSTREAM: + case HPI_CONTROL_MICROPHONE: + case HPI_CONTROL_PARAMETRIC_EQ: + case HPI_CONTROL_COMPANDER: + default: + if (mixer_dump) + snd_printk(KERN_INFO + "untranslated HPI control" + "(%d) %d %d %d %d %d\n", + idx, + hpi_ctl.control_type, + hpi_ctl.src_node_type, + hpi_ctl.src_node_index, + hpi_ctl.dst_node_type, + hpi_ctl.dst_node_index); + continue; + }; + if (err < 0) + return err; + } + if (HPI_ERROR_INVALID_OBJ_INDEX != err) + hpi_handle_error(err); + + snd_printk(KERN_INFO "%d mixer controls found\n", idx); + + return 0; +} + +/*------------------------------------------------------------ + /proc interface + ------------------------------------------------------------*/ + +static void +snd_asihpi_proc_read(struct snd_info_entry *entry, + struct snd_info_buffer *buffer) +{ + struct snd_card_asihpi *asihpi = entry->private_data; + u16 version; + u32 h_control; + u32 rate = 0; + u16 source = 0; + int err; + + snd_iprintf(buffer, "ASIHPI driver proc file\n"); + snd_iprintf(buffer, + "adapter ID=%4X\n_index=%d\n" + "num_outstreams=%d\n_num_instreams=%d\n", + asihpi->type, asihpi->adapter_index, + asihpi->num_outstreams, asihpi->num_instreams); + + version = asihpi->version; + snd_iprintf(buffer, + "serial#=%d\n_hw version %c%d\nDSP code version %03d\n", + asihpi->serial_number, ((version >> 3) & 0xf) + 'A', + version & 0x7, + ((version >> 13) * 100) + ((version >> 7) & 0x3f)); + + err = hpi_mixer_get_control(ss, asihpi->h_mixer, + HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0, + HPI_CONTROL_SAMPLECLOCK, &h_control); + + if (!err) { + err = hpi_sample_clock_get_sample_rate(ss, + h_control, &rate); + err += hpi_sample_clock_get_source(ss, h_control, &source); + + if (!err) + snd_iprintf(buffer, "sample_clock=%d_hz, source %s\n", + rate, sampleclock_sources[source]); + } + +} + + +static void __devinit snd_asihpi_proc_init(struct snd_card_asihpi *asihpi) +{ + struct snd_info_entry *entry; + + if (!snd_card_proc_new(asihpi->card, "info", &entry)) + snd_info_set_text_ops(entry, asihpi, snd_asihpi_proc_read); +} + +/*------------------------------------------------------------ + HWDEP + ------------------------------------------------------------*/ + +static int snd_asihpi_hpi_open(struct snd_hwdep *hw, struct file *file) +{ + if (enable_hpi_hwdep) + return 0; + else + return -ENODEV; + +} + +static int snd_asihpi_hpi_release(struct snd_hwdep *hw, struct file *file) +{ + if (enable_hpi_hwdep) + return asihpi_hpi_release(file); + else + return -ENODEV; +} + +static int snd_asihpi_hpi_ioctl(struct snd_hwdep *hw, struct file *file, + unsigned int cmd, unsigned long arg) +{ + if (enable_hpi_hwdep) + return asihpi_hpi_ioctl(file, cmd, arg); + else + return -ENODEV; +} + + +/* results in /dev/snd/hwC#D0 file for each card with index # + also /proc/asound/hwdep will contain '#-00: asihpi (HPI) for each card' +*/ +static int __devinit snd_asihpi_hpi_new(struct snd_card_asihpi *asihpi, + int device, struct snd_hwdep **rhwdep) +{ + struct snd_hwdep *hw; + int err; + + if (rhwdep) + *rhwdep = NULL; + err = snd_hwdep_new(asihpi->card, "HPI", device, &hw); + if (err < 0) + return err; + strcpy(hw->name, "asihpi (HPI)"); + hw->iface = SNDRV_HWDEP_IFACE_LAST; + hw->ops.open = snd_asihpi_hpi_open; + hw->ops.ioctl = snd_asihpi_hpi_ioctl; + hw->ops.release = snd_asihpi_hpi_release; + hw->private_data = asihpi; + if (rhwdep) + *rhwdep = hw; + return 0; +} + +/*------------------------------------------------------------ + CARD + ------------------------------------------------------------*/ +static int __devinit snd_asihpi_probe(struct pci_dev *pci_dev, + const struct pci_device_id *pci_id) +{ + int err; + + u16 version; + int pcm_substreams; + + struct hpi_adapter *hpi_card; + struct snd_card *card; + struct snd_card_asihpi *asihpi; + + u32 h_control; + u32 h_stream; + + static int dev; + if (dev >= SNDRV_CARDS) + return -ENODEV; + + /* Should this be enable[hpi_card->index] ? */ + if (!enable[dev]) { + dev++; + return -ENOENT; + } + + err = asihpi_adapter_probe(pci_dev, pci_id); + if (err < 0) + return err; + + hpi_card = pci_get_drvdata(pci_dev); + /* first try to give the card the same index as its hardware index */ + err = snd_card_create(hpi_card->index, + id[hpi_card->index], THIS_MODULE, + sizeof(struct snd_card_asihpi), + &card); + if (err < 0) { + /* if that fails, try the default index==next available */ + err = + snd_card_create(index[dev], id[dev], + THIS_MODULE, + sizeof(struct snd_card_asihpi), + &card); + if (err < 0) + return err; + snd_printk(KERN_WARNING + "**** WARNING **** adapter index %d->ALSA index %d\n", + hpi_card->index, card->number); + } + + asihpi = (struct snd_card_asihpi *) card->private_data; + asihpi->card = card; + asihpi->pci = hpi_card->pci; + asihpi->adapter_index = hpi_card->index; + hpi_handle_error(hpi_adapter_get_info(ss, + asihpi->adapter_index, + &asihpi->num_outstreams, + &asihpi->num_instreams, + &asihpi->version, + &asihpi->serial_number, &asihpi->type)); + + version = asihpi->version; + snd_printk(KERN_INFO "adapter ID=%4X index=%d num_outstreams=%d " + "num_instreams=%d S/N=%d\n" + "hw version %c%d DSP code version %03d\n", + asihpi->type, asihpi->adapter_index, + asihpi->num_outstreams, + asihpi->num_instreams, asihpi->serial_number, + ((version >> 3) & 0xf) + 'A', + version & 0x7, + ((version >> 13) * 100) + ((version >> 7) & 0x3f)); + + pcm_substreams = asihpi->num_outstreams; + if (pcm_substreams < asihpi->num_instreams) + pcm_substreams = asihpi->num_instreams; + + err = hpi_adapter_get_property(ss, asihpi->adapter_index, + HPI_ADAPTER_PROPERTY_CAPS1, + NULL, &asihpi->support_grouping); + if (err) + asihpi->support_grouping = 0; + + err = hpi_adapter_get_property(ss, asihpi->adapter_index, + HPI_ADAPTER_PROPERTY_CAPS2, + &asihpi->support_mrx, NULL); + if (err) + asihpi->support_mrx = 0; + + err = hpi_adapter_get_property(ss, asihpi->adapter_index, + HPI_ADAPTER_PROPERTY_INTERVAL, + NULL, &asihpi->update_interval_frames); + if (err) + asihpi->update_interval_frames = 512; + + hpi_handle_error(hpi_instream_open(ss, asihpi->adapter_index, + 0, &h_stream)); + + err = hpi_instream_host_buffer_free(ss, h_stream); + asihpi->support_mmap = (!err); + + hpi_handle_error(hpi_instream_close(ss, h_stream)); + + err = hpi_adapter_get_property(ss, asihpi->adapter_index, + HPI_ADAPTER_PROPERTY_CURCHANNELS, + &asihpi->in_max_chans, &asihpi->out_max_chans); + if (err) { + asihpi->in_max_chans = 2; + asihpi->out_max_chans = 2; + } + + snd_printk(KERN_INFO "supports mmap:%d grouping:%d mrx:%d\n", + asihpi->support_mmap, + asihpi->support_grouping, + asihpi->support_mrx + ); + + + err = snd_card_asihpi_pcm_new(asihpi, 0, pcm_substreams); + if (err < 0) { + snd_printk(KERN_ERR "pcm_new failed\n"); + goto __nodev; + } + err = snd_card_asihpi_mixer_new(asihpi); + if (err < 0) { + snd_printk(KERN_ERR "mixer_new failed\n"); + goto __nodev; + } + + err = hpi_mixer_get_control(ss, asihpi->h_mixer, + HPI_SOURCENODE_CLOCK_SOURCE, 0, 0, 0, + HPI_CONTROL_SAMPLECLOCK, &h_control); + + if (!err) + err = hpi_sample_clock_set_local_rate( + ss, h_control, adapter_fs); + + snd_asihpi_proc_init(asihpi); + + /* always create, can be enabled or disabled dynamically + by enable_hwdep module param*/ + snd_asihpi_hpi_new(asihpi, 0, NULL); + + if (asihpi->support_mmap) + strcpy(card->driver, "ASIHPI-MMAP"); + else + strcpy(card->driver, "ASIHPI"); + + sprintf(card->shortname, "AudioScience ASI%4X", asihpi->type); + sprintf(card->longname, "%s %i", + card->shortname, asihpi->adapter_index); + err = snd_card_register(card); + if (!err) { + hpi_card->snd_card_asihpi = card; + dev++; + return 0; + } +__nodev: + snd_card_free(card); + snd_printk(KERN_ERR "snd_asihpi_probe error %d\n", err); + return err; + +} + +static void __devexit snd_asihpi_remove(struct pci_dev *pci_dev) +{ + struct hpi_adapter *hpi_card = pci_get_drvdata(pci_dev); + + snd_card_free(hpi_card->snd_card_asihpi); + hpi_card->snd_card_asihpi = NULL; + asihpi_adapter_remove(pci_dev); +} + +static DEFINE_PCI_DEVICE_TABLE(asihpi_pci_tbl) = { + {HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_DSP6205, + HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0, + (kernel_ulong_t)HPI_6205}, + {HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_PCI2040, + HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0, + (kernel_ulong_t)HPI_6000}, + {0,} +}; +MODULE_DEVICE_TABLE(pci, asihpi_pci_tbl); + +static struct pci_driver driver = { + .name = "asihpi", + .id_table = asihpi_pci_tbl, + .probe = snd_asihpi_probe, + .remove = __devexit_p(snd_asihpi_remove), +#ifdef CONFIG_PM +/* .suspend = snd_asihpi_suspend, + .resume = snd_asihpi_resume, */ +#endif +}; + +static int __init snd_asihpi_init(void) +{ + asihpi_init(); + return pci_register_driver(&driver); +} + +static void __exit snd_asihpi_exit(void) +{ + + pci_unregister_driver(&driver); + asihpi_exit(); +} + +module_init(snd_asihpi_init) +module_exit(snd_asihpi_exit) + diff --git a/sound/pci/asihpi/hpi.h b/sound/pci/asihpi/hpi.h new file mode 100644 index 00000000000..99400de6c07 --- /dev/null +++ b/sound/pci/asihpi/hpi.h @@ -0,0 +1,2001 @@ +/****************************************************************************** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +*/ +/** \file hpi.h + + AudioScience Hardware Programming Interface (HPI) + public API definition. + + The HPI is a low-level hardware abstraction layer to all + AudioScience digital audio adapters +*/ +/* + You must define one operating system that the HPI is to be compiled under + HPI_OS_WIN32_USER 32bit Windows + HPI_OS_DSP_C6000 DSP TI C6000 (automatically set) + HPI_OS_WDM Windows WDM kernel driver + HPI_OS_LINUX Linux userspace + HPI_OS_LINUX_KERNEL Linux kernel (automatically set) + +(C) Copyright AudioScience Inc. 1998-2010 +******************************************************************************/ +#ifndef _HPI_H_ +#define _HPI_H_ +/* HPI Version +If HPI_VER_MINOR is odd then its a development release not intended for the +public. If HPI_VER_MINOR is even then is a release version +i.e 3.05.02 is a development version +*/ +#define HPI_VERSION_CONSTRUCTOR(maj, min, rel) \ + ((maj << 16) + (min << 8) + rel) + +#define HPI_VER_MAJOR(v) ((int)(v >> 16)) +#define HPI_VER_MINOR(v) ((int)((v >> 8) & 0xFF)) +#define HPI_VER_RELEASE(v) ((int)(v & 0xFF)) + +/* Use single digits for versions less that 10 to avoid octal. */ +#define HPI_VER HPI_VERSION_CONSTRUCTOR(4L, 3, 18) + +/* Library version as documented in hpi-api-versions.txt */ +#define HPI_LIB_VER HPI_VERSION_CONSTRUCTOR(9, 0, 0) + +#include +#define HPI_EXCLUDE_DEPRECATED + +/******************************************************************************/ +/******************************************************************************/ +/******** HPI API DEFINITIONS *****/ +/******************************************************************************/ +/******************************************************************************/ +/*******************************************/ +/** Audio format types +\ingroup stream +*/ +enum HPI_FORMATS { +/** Used internally on adapter. */ + HPI_FORMAT_MIXER_NATIVE = 0, +/** 8-bit unsigned PCM. Windows equivalent is WAVE_FORMAT_PCM. */ + HPI_FORMAT_PCM8_UNSIGNED = 1, +/** 16-bit signed PCM. Windows equivalent is WAVE_FORMAT_PCM. */ + HPI_FORMAT_PCM16_SIGNED = 2, +/** MPEG-1 Layer-1. */ + HPI_FORMAT_MPEG_L1 = 3, +/** MPEG-1 Layer-2. + +Windows equivalent is WAVE_FORMAT_MPEG. + +The following table shows what combinations of mode and bitrate are possible: + + + +

Bitrate (kbs)

+

Mono

+

Stereo,
Joint Stereo or
Dual Channel

+ +
32X_ +
40__ +
48X_ +
56X_ +
64XX +
80X_ +
96XX +
112XX +
128XX +
160XX +
192XX +
224_X +
256-X +
320-X +
384_X +
+*/ + HPI_FORMAT_MPEG_L2 = 4, +/** MPEG-1 Layer-3. +Windows equivalent is WAVE_FORMAT_MPEG. + +The following table shows what combinations of mode and bitrate are possible: + + + +

Bitrate (kbs)

+

Mono
Stereo @ 8,
11.025 and
12kHz*

+

Mono
Stereo @ 16,
22.050 and
24kHz*

+

Mono
Stereo @ 32,
44.1 and
48kHz

+ +
16XX_ +
24XX_ +
32XXX +
40XXX +
48XXX +
56XXX +
64XXX +
80_XX +
96_XX +
112_XX +
128_XX +
144_X_ +
160_XX +
192__X +
224__X +
256-_X +
320-_X +
+\b * Available on the ASI6000 series only +*/ + HPI_FORMAT_MPEG_L3 = 5, +/** Dolby AC-2. */ + HPI_FORMAT_DOLBY_AC2 = 6, +/** Dolbt AC-3. */ + HPI_FORMAT_DOLBY_AC3 = 7, +/** 16-bit PCM big-endian. */ + HPI_FORMAT_PCM16_BIGENDIAN = 8, +/** TAGIT-1 algorithm - hits. */ + HPI_FORMAT_AA_TAGIT1_HITS = 9, +/** TAGIT-1 algorithm - inserts. */ + HPI_FORMAT_AA_TAGIT1_INSERTS = 10, +/** 32-bit signed PCM. Windows equivalent is WAVE_FORMAT_PCM. +Each sample is a 32bit word. The most significant 24 bits contain a 24-bit +sample and the least significant 8 bits are set to 0. +*/ + HPI_FORMAT_PCM32_SIGNED = 11, +/** Raw bitstream - unknown format. */ + HPI_FORMAT_RAW_BITSTREAM = 12, +/** TAGIT-1 algorithm hits - extended. */ + HPI_FORMAT_AA_TAGIT1_HITS_EX1 = 13, +/** 32-bit PCM as an IEEE float. Windows equivalent is WAVE_FORMAT_IEEE_FLOAT. +Each sample is a 32bit word in IEEE754 floating point format. +The range is +1.0 to -1.0, which corresponds to digital fullscale. +*/ + HPI_FORMAT_PCM32_FLOAT = 14, +/** 24-bit PCM signed. Windows equivalent is WAVE_FORMAT_PCM. */ + HPI_FORMAT_PCM24_SIGNED = 15, +/** OEM format 1 - private. */ + HPI_FORMAT_OEM1 = 16, +/** OEM format 2 - private. */ + HPI_FORMAT_OEM2 = 17, +/** Undefined format. */ + HPI_FORMAT_UNDEFINED = 0xffff +}; + +/******************************************* in/out Stream states */ +/*******************************************/ +/** Stream States +\ingroup stream +*/ +enum HPI_STREAM_STATES { + /** State stopped - stream is stopped. */ + HPI_STATE_STOPPED = 1, + /** State playing - stream is playing audio. */ + HPI_STATE_PLAYING = 2, + /** State recording - stream is recording. */ + HPI_STATE_RECORDING = 3, + /** State drained - playing stream ran out of data to play. */ + HPI_STATE_DRAINED = 4, + /** State generate sine - to be implemented. */ + HPI_STATE_SINEGEN = 5, + /** State wait - used for inter-card sync to mean waiting for all + cards to be ready. */ + HPI_STATE_WAIT = 6 +}; +/******************************************* mixer source node types */ +/** Source node types +\ingroup mixer +*/ +enum HPI_SOURCENODES { + /** This define can be used instead of 0 to indicate + that there is no valid source node. A control that + exists on a destination node can be searched for using a source + node value of either 0, or HPI_SOURCENODE_NONE */ + HPI_SOURCENODE_NONE = 100, + /** \deprecated Use HPI_SOURCENODE_NONE instead. */ + HPI_SOURCENODE_BASE = 100, + /** Out Stream (Play) node. */ + HPI_SOURCENODE_OSTREAM = 101, + /** Line in node - could be analog, AES/EBU or network. */ + HPI_SOURCENODE_LINEIN = 102, + HPI_SOURCENODE_AESEBU_IN = 103, /**< AES/EBU input node. */ + HPI_SOURCENODE_TUNER = 104, /**< tuner node. */ + HPI_SOURCENODE_RF = 105, /**< RF input node. */ + HPI_SOURCENODE_CLOCK_SOURCE = 106, /**< clock source node. */ + HPI_SOURCENODE_RAW_BITSTREAM = 107, /**< raw bitstream node. */ + HPI_SOURCENODE_MICROPHONE = 108, /**< microphone node. */ + /** Cobranet input node - + Audio samples come from the Cobranet network and into the device. */ + HPI_SOURCENODE_COBRANET = 109, + HPI_SOURCENODE_ANALOG = 110, /**< analog input node. */ + HPI_SOURCENODE_ADAPTER = 111, /**< adapter node. */ + /* !!!Update this AND hpidebug.h if you add a new sourcenode type!!! */ + HPI_SOURCENODE_LAST_INDEX = 111 /**< largest ID */ + /* AX6 max sourcenode types = 15 */ +}; + +/******************************************* mixer dest node types */ +/** Destination node types +\ingroup mixer +*/ +enum HPI_DESTNODES { + /** This define can be used instead of 0 to indicate + that there is no valid destination node. A control that + exists on a source node can be searched for using a destination + node value of either 0, or HPI_DESTNODE_NONE */ + HPI_DESTNODE_NONE = 200, + /** \deprecated Use HPI_DESTNODE_NONE instead. */ + HPI_DESTNODE_BASE = 200, + /** In Stream (Record) node. */ + HPI_DESTNODE_ISTREAM = 201, + HPI_DESTNODE_LINEOUT = 202, /**< line out node. */ + HPI_DESTNODE_AESEBU_OUT = 203, /**< AES/EBU output node. */ + HPI_DESTNODE_RF = 204, /**< RF output node. */ + HPI_DESTNODE_SPEAKER = 205, /**< speaker output node. */ + /** Cobranet output node - + Audio samples from the device are sent out on the Cobranet network.*/ + HPI_DESTNODE_COBRANET = 206, + HPI_DESTNODE_ANALOG = 207, /**< analog output node. */ + + /* !!!Update this AND hpidebug.h if you add a new destnode type!!! */ + HPI_DESTNODE_LAST_INDEX = 207 /**< largest ID */ + /* AX6 max destnode types = 15 */ +}; + +/*******************************************/ +/** Mixer control types +\ingroup mixer +*/ +enum HPI_CONTROLS { + HPI_CONTROL_GENERIC = 0, /**< generic control. */ + HPI_CONTROL_CONNECTION = 1, /**< A connection between nodes. */ + HPI_CONTROL_VOLUME = 2, /**< volume control - works in dB_fs. */ + HPI_CONTROL_METER = 3, /**< peak meter control. */ + HPI_CONTROL_MUTE = 4, /*mute control - not used at present. */ + HPI_CONTROL_MULTIPLEXER = 5, /**< multiplexer control. */ + + HPI_CONTROL_AESEBU_TRANSMITTER = 6, /**< AES/EBU transmitter control. */ + HPI_CONTROL_AESEBUTX = HPI_CONTROL_AESEBU_TRANSMITTER, + + HPI_CONTROL_AESEBU_RECEIVER = 7, /**< AES/EBU receiver control. */ + HPI_CONTROL_AESEBURX = HPI_CONTROL_AESEBU_RECEIVER, + + HPI_CONTROL_LEVEL = 8, /**< level/trim control - works in d_bu. */ + HPI_CONTROL_TUNER = 9, /**< tuner control. */ +/* HPI_CONTROL_ONOFFSWITCH = 10 */ + HPI_CONTROL_VOX = 11, /**< vox control. */ +/* HPI_CONTROL_AES18_TRANSMITTER = 12 */ +/* HPI_CONTROL_AES18_RECEIVER = 13 */ +/* HPI_CONTROL_AES18_BLOCKGENERATOR = 14 */ + HPI_CONTROL_CHANNEL_MODE = 15, /**< channel mode control. */ + + HPI_CONTROL_BITSTREAM = 16, /**< bitstream control. */ + HPI_CONTROL_SAMPLECLOCK = 17, /**< sample clock control. */ + HPI_CONTROL_MICROPHONE = 18, /**< microphone control. */ + HPI_CONTROL_PARAMETRIC_EQ = 19, /**< parametric EQ control. */ + HPI_CONTROL_EQUALIZER = HPI_CONTROL_PARAMETRIC_EQ, + + HPI_CONTROL_COMPANDER = 20, /**< compander control. */ + HPI_CONTROL_COBRANET = 21, /**< cobranet control. */ + HPI_CONTROL_TONEDETECTOR = 22, /**< tone detector control. */ + HPI_CONTROL_SILENCEDETECTOR = 23, /**< silence detector control. */ + HPI_CONTROL_PAD = 24, /**< tuner PAD control. */ + HPI_CONTROL_SRC = 25, /**< samplerate converter control. */ + HPI_CONTROL_UNIVERSAL = 26, /**< universal control. */ + +/* !!! Update this AND hpidebug.h if you add a new control type!!!*/ + HPI_CONTROL_LAST_INDEX = 26 /** 4 line outs = 1 to 8 channel streams), + 4 lineins -> 1 instream (1 to 8 channel streams) at 0-48kHz. + For more info see the SSX Specification. +*/ + HPI_ADAPTER_MODE_MULTICHANNEL = 9, + +/** 12 outstream mode. +- ASI6514, ASI6614: 2 instreams +- ASI6540,ASI6544: 8 instreams +- ASI6640,ASI6644: 8 instreams +*/ + HPI_ADAPTER_MODE_12OSTREAM = 10, + +/** 9 outstream mode. +- ASI6044: 8 instreams +*/ + HPI_ADAPTER_MODE_9OSTREAM = 11, + +/** mono mode. +- ASI6416: 16 outstreams/instreams +- ASI5402: 2 outstreams/instreams +*/ + HPI_ADAPTER_MODE_MONO = 12, + +/** Low latency mode. +- ASI6416/ASI6316: 1 16 channel outstream and instream +*/ + HPI_ADAPTER_MODE_LOW_LATENCY = 13 +}; + +/* Note, adapters can have more than one capability - +encoding as bitfield is recommended. */ +#define HPI_CAPABILITY_NONE (0) +#define HPI_CAPABILITY_MPEG_LAYER3 (1) + +/* Set this equal to maximum capability index, +Must not be greater than 32 - see axnvdef.h */ +#define HPI_CAPABILITY_MAX 1 +/* #define HPI_CAPABILITY_AAC 2 */ + +/******************************************* STREAM ATTRIBUTES ****/ + +/** MPEG Ancillary Data modes + +The mode for the ancillary data insertion or extraction to operate in. +\ingroup stream +*/ +enum HPI_MPEG_ANC_MODES { + /** the MPEG frames have energy information stored in them (5 bytes per stereo frame, 3 per mono) */ + HPI_MPEG_ANC_HASENERGY = 0, + /** the entire ancillary data field is taken up by data from the Anc data buffer + On encode, the encoder will insert the energy bytes before filling the remainder + of the ancillary data space with data from the ancillary data buffer. + */ + HPI_MPEG_ANC_RAW = 1 +}; + +/** Ancillary Data Alignment +\ingroup instream +*/ +enum HPI_ISTREAM_MPEG_ANC_ALIGNS { + /** data is packed against the end of data, then padded to the end of frame */ + HPI_MPEG_ANC_ALIGN_LEFT = 0, + /** data is packed against the end of the frame */ + HPI_MPEG_ANC_ALIGN_RIGHT = 1 +}; + +/** MPEG modes +MPEG modes - can be used optionally for HPI_FormatCreate() +parameter dwAttributes. + +Using any mode setting other than HPI_MPEG_MODE_DEFAULT +with single channel format will return an error. +\ingroup stream +*/ +enum HPI_MPEG_MODES { +/** Causes the MPEG-1 Layer II bitstream to be recorded +in single_channel mode when the number of channels is 1 and in stereo when the +number of channels is 2. */ + HPI_MPEG_MODE_DEFAULT = 0, + /** Standard stereo without joint-stereo compression */ + HPI_MPEG_MODE_STEREO = 1, + /** Joint stereo */ + HPI_MPEG_MODE_JOINTSTEREO = 2, + /** Left and Right channels are completely independent */ + HPI_MPEG_MODE_DUALCHANNEL = 3 +}; +/******************************************* MIXER ATTRIBUTES ****/ + +/* \defgroup mixer_flags Mixer flags for HPI_MIXER_GET_CONTROL_MULTIPLE_VALUES +{ +*/ +#define HPI_MIXER_GET_CONTROL_MULTIPLE_CHANGED (0) +#define HPI_MIXER_GET_CONTROL_MULTIPLE_RESET (1) +/*}*/ + +/** Commands used by HPI_MixerStore() +\ingroup mixer +*/ +enum HPI_MIXER_STORE_COMMAND { +/** Save all mixer control settings. */ + HPI_MIXER_STORE_SAVE = 1, +/** Restore all controls from saved. */ + HPI_MIXER_STORE_RESTORE = 2, +/** Delete saved control settings. */ + HPI_MIXER_STORE_DELETE = 3, +/** Enable auto storage of some control settings. */ + HPI_MIXER_STORE_ENABLE = 4, +/** Disable auto storage of some control settings. */ + HPI_MIXER_STORE_DISABLE = 5, +/** Save the attributes of a single control. */ + HPI_MIXER_STORE_SAVE_SINGLE = 6 +}; + +/************************************* CONTROL ATTRIBUTE VALUES ****/ +/** Used by mixer plugin enable functions + +E.g. HPI_ParametricEQ_SetState() +\ingroup mixer +*/ +enum HPI_SWITCH_STATES { + HPI_SWITCH_OFF = 0, /**< turn the mixer plugin on. */ + HPI_SWITCH_ON = 1 /**< turn the mixer plugin off. */ +}; + +/* Volume control special gain values */ +/** volumes units are 100ths of a dB +\ingroup volume +*/ +#define HPI_UNITS_PER_dB 100 +/** turns volume control OFF or MUTE +\ingroup volume +*/ +#define HPI_GAIN_OFF (-100 * HPI_UNITS_PER_dB) + +/** value returned for no signal +\ingroup meter +*/ +#define HPI_METER_MINIMUM (-150 * HPI_UNITS_PER_dB) + +/** autofade profiles +\ingroup volume +*/ +enum HPI_VOLUME_AUTOFADES { +/** log fade - dB attenuation changes linearly over time */ + HPI_VOLUME_AUTOFADE_LOG = 2, +/** linear fade - amplitude changes linearly */ + HPI_VOLUME_AUTOFADE_LINEAR = 3 +}; + +/** The physical encoding format of the AESEBU I/O. + +Used in HPI_AESEBU_Transmitter_SetFormat(), HPI_AESEBU_Receiver_SetFormat() +along with related Get and Query functions +\ingroup aestx +*/ +enum HPI_AESEBU_FORMATS { +/** AES/EBU physical format - AES/EBU balanced "professional" */ + HPI_AESEBU_FORMAT_AESEBU = 1, +/** AES/EBU physical format - S/PDIF unbalanced "consumer" */ + HPI_AESEBU_FORMAT_SPDIF = 2 +}; + +/** AES/EBU error status bits + +Returned by HPI_AESEBU_Receiver_GetErrorStatus() +\ingroup aesrx +*/ +enum HPI_AESEBU_ERRORS { +/** bit0: 1 when PLL is not locked */ + HPI_AESEBU_ERROR_NOT_LOCKED = 0x01, +/** bit1: 1 when signal quality is poor */ + HPI_AESEBU_ERROR_POOR_QUALITY = 0x02, +/** bit2: 1 when there is a parity error */ + HPI_AESEBU_ERROR_PARITY_ERROR = 0x04, +/** bit3: 1 when there is a bi-phase coding violation */ + HPI_AESEBU_ERROR_BIPHASE_VIOLATION = 0x08, +/** bit4: 1 when the validity bit is high */ + HPI_AESEBU_ERROR_VALIDITY = 0x10, +/** bit5: 1 when the CRC error bit is high */ + HPI_AESEBU_ERROR_CRC = 0x20 +}; + +/** \addtogroup pad +\{ +*/ +/** The text string containing the station/channel combination. */ +#define HPI_PAD_CHANNEL_NAME_LEN 16 +/** The text string containing the artist. */ +#define HPI_PAD_ARTIST_LEN 64 +/** The text string containing the title. */ +#define HPI_PAD_TITLE_LEN 64 +/** The text string containing the comment. */ +#define HPI_PAD_COMMENT_LEN 256 +/** The PTY when the tuner has not recieved any PTY. */ +#define HPI_PAD_PROGRAM_TYPE_INVALID 0xffff +/** \} */ + +/** Data types for PTY string translation. +\ingroup rds +*/ +enum eHPI_RDS_type { + HPI_RDS_DATATYPE_RDS = 0, /**< RDS bitstream.*/ + HPI_RDS_DATATYPE_RBDS = 1 /**< RBDS bitstream.*/ +}; + +/** Tuner bands + +Used for HPI_Tuner_SetBand(),HPI_Tuner_GetBand() +\ingroup tuner +*/ +enum HPI_TUNER_BAND { + HPI_TUNER_BAND_AM = 1, /**< AM band */ + HPI_TUNER_BAND_FM = 2, /**< FM band (mono) */ + HPI_TUNER_BAND_TV_NTSC_M = 3, /**< NTSC-M TV band*/ + HPI_TUNER_BAND_TV = 3, /* use TV_NTSC_M */ + HPI_TUNER_BAND_FM_STEREO = 4, /**< FM band (stereo) */ + HPI_TUNER_BAND_AUX = 5, /**< auxiliary input */ + HPI_TUNER_BAND_TV_PAL_BG = 6, /**< PAL-B/G TV band*/ + HPI_TUNER_BAND_TV_PAL_I = 7, /**< PAL-I TV band*/ + HPI_TUNER_BAND_TV_PAL_DK = 8, /**< PAL-D/K TV band*/ + HPI_TUNER_BAND_TV_SECAM_L = 9, /**< SECAM-L TV band*/ + HPI_TUNER_BAND_LAST = 9 /**< the index of the last tuner band. */ +}; + +/** Tuner mode attributes + +Used by HPI_Tuner_SetMode(), HPI_Tuner_GetMode() +\ingroup tuner + +*/ +enum HPI_TUNER_MODES { + HPI_TUNER_MODE_RSS = 1, /**< control RSS */ + HPI_TUNER_MODE_RDS = 2 /**< control RBDS/RDS */ +}; + +/** Tuner mode attribute values + +Used by HPI_Tuner_SetMode(), HPI_Tuner_GetMode() +\ingroup tuner +*/ +enum HPI_TUNER_MODE_VALUES { +/* RSS attribute values */ + HPI_TUNER_MODE_RSS_DISABLE = 0, /**< RSS disable */ + HPI_TUNER_MODE_RSS_ENABLE = 1, /**< RSS enable */ + +/* RDS mode attributes */ + HPI_TUNER_MODE_RDS_DISABLE = 0, /**< RDS - disabled */ + HPI_TUNER_MODE_RDS_RDS = 1, /**< RDS - RDS mode */ + HPI_TUNER_MODE_RDS_RBDS = 2 /**< RDS - RBDS mode */ +}; + +/** Tuner Level settings +\ingroup tuner +*/ +enum HPI_TUNER_LEVEL { + HPI_TUNER_LEVEL_AVERAGE = 0, + HPI_TUNER_LEVEL_RAW = 1 +}; + +/** Tuner Status Bits + +These bitfield values are returned by a call to HPI_Tuner_GetStatus(). +Multiple fields are returned from a single call. +\ingroup tuner +*/ +enum HPI_TUNER_STATUS_BITS { + HPI_TUNER_VIDEO_COLOR_PRESENT = 0x0001, /**< video color is present. */ + HPI_TUNER_VIDEO_IS_60HZ = 0x0020, /**< 60 hz video detected. */ + HPI_TUNER_VIDEO_HORZ_SYNC_MISSING = 0x0040, /**< video HSYNC is missing. */ + HPI_TUNER_VIDEO_STATUS_VALID = 0x0100, /**< video status is valid. */ + HPI_TUNER_PLL_LOCKED = 0x1000, /**< the tuner's PLL is locked. */ + HPI_TUNER_FM_STEREO = 0x2000, /**< tuner reports back FM stereo. */ + HPI_TUNER_DIGITAL = 0x0200, /**< tuner reports digital programming. */ + HPI_TUNER_MULTIPROGRAM = 0x0400 /**< tuner reports multiple programs. */ +}; + +/** Channel Modes +Used for HPI_ChannelModeSet/Get() +\ingroup channelmode +*/ +enum HPI_CHANNEL_MODES { +/** Left channel out = left channel in, Right channel out = right channel in. */ + HPI_CHANNEL_MODE_NORMAL = 1, +/** Left channel out = right channel in, Right channel out = left channel in. */ + HPI_CHANNEL_MODE_SWAP = 2, +/** Left channel out = left channel in, Right channel out = left channel in. */ + HPI_CHANNEL_MODE_LEFT_TO_STEREO = 3, +/** Left channel out = right channel in, Right channel out = right channel in.*/ + HPI_CHANNEL_MODE_RIGHT_TO_STEREO = 4, +/** Left channel out = (left channel in + right channel in)/2, + Right channel out = mute. */ + HPI_CHANNEL_MODE_STEREO_TO_LEFT = 5, +/** Left channel out = mute, + Right channel out = (right channel in + left channel in)/2. */ + HPI_CHANNEL_MODE_STEREO_TO_RIGHT = 6, + HPI_CHANNEL_MODE_LAST = 6 +}; + +/** SampleClock source values +\ingroup sampleclock +*/ +enum HPI_SAMPLECLOCK_SOURCES { +/** The sampleclock output is derived from its local samplerate generator. + The local samplerate may be set using HPI_SampleClock_SetLocalRate(). */ + HPI_SAMPLECLOCK_SOURCE_LOCAL = 1, +/** \deprecated Use HPI_SAMPLECLOCK_SOURCE_LOCAL instead */ + HPI_SAMPLECLOCK_SOURCE_ADAPTER = 1, +/** The adapter is clocked from a dedicated AES/EBU SampleClock input.*/ + HPI_SAMPLECLOCK_SOURCE_AESEBU_SYNC = 2, +/** From external wordclock connector */ + HPI_SAMPLECLOCK_SOURCE_WORD = 3, +/** Board-to-board header */ + HPI_SAMPLECLOCK_SOURCE_WORD_HEADER = 4, +/** FUTURE - SMPTE clock. */ + HPI_SAMPLECLOCK_SOURCE_SMPTE = 5, +/** One of the aesebu inputs */ + HPI_SAMPLECLOCK_SOURCE_AESEBU_INPUT = 6, +/** \deprecated The first aesebu input with a valid signal +Superseded by separate Auto enable flag +*/ + HPI_SAMPLECLOCK_SOURCE_AESEBU_AUTO = 7, +/** From a network interface e.g. Cobranet or Livewire at either 48 or 96kHz */ + HPI_SAMPLECLOCK_SOURCE_NETWORK = 8, +/** From previous adjacent module (ASI2416 only)*/ + HPI_SAMPLECLOCK_SOURCE_PREV_MODULE = 10, +/*! Update this if you add a new clock source.*/ + HPI_SAMPLECLOCK_SOURCE_LAST = 10 +}; + +/** Equalizer filter types. Used by HPI_ParametricEQ_SetBand() +\ingroup parmeq +*/ +enum HPI_FILTER_TYPE { + HPI_FILTER_TYPE_BYPASS = 0, /**< filter is turned off */ + + HPI_FILTER_TYPE_LOWSHELF = 1, /**< EQ low shelf */ + HPI_FILTER_TYPE_HIGHSHELF = 2, /**< EQ high shelf */ + HPI_FILTER_TYPE_EQ_BAND = 3, /**< EQ gain */ + + HPI_FILTER_TYPE_LOWPASS = 4, /**< standard low pass */ + HPI_FILTER_TYPE_HIGHPASS = 5, /**< standard high pass */ + HPI_FILTER_TYPE_BANDPASS = 6, /**< standard band pass */ + HPI_FILTER_TYPE_BANDSTOP = 7 /**< standard band stop/notch */ +}; + +/** Async Event sources +\ingroup async +*/ +enum ASYNC_EVENT_SOURCES { + HPI_ASYNC_EVENT_GPIO = 1, /**< GPIO event. */ + HPI_ASYNC_EVENT_SILENCE = 2, /**< silence event detected. */ + HPI_ASYNC_EVENT_TONE = 3 /**< tone event detected. */ +}; +/*******************************************/ +/** HPI Error codes + +Almost all HPI functions return an error code +A return value of zero means there was no error. +Otherwise one of these error codes is returned. +Error codes can be converted to a descriptive string using HPI_GetErrorText() + +\note When a new error code is added HPI_GetErrorText() MUST be updated. +\note Codes 1-100 are reserved for driver use +\ingroup utility +*/ +enum HPI_ERROR_CODES { + /** Message type does not exist. */ + HPI_ERROR_INVALID_TYPE = 100, + /** Object type does not exist. */ + HPI_ERROR_INVALID_OBJ = 101, + /** Function does not exist. */ + HPI_ERROR_INVALID_FUNC = 102, + /** The specified object (adapter/Stream) does not exist. */ + HPI_ERROR_INVALID_OBJ_INDEX = 103, + /** Trying to access an object that has not been opened yet. */ + HPI_ERROR_OBJ_NOT_OPEN = 104, + /** Trying to open an already open object. */ + HPI_ERROR_OBJ_ALREADY_OPEN = 105, + /** PCI, ISA resource not valid. */ + HPI_ERROR_INVALID_RESOURCE = 106, + /** GetInfo call from SubSysFindAdapters failed. */ + HPI_ERROR_SUBSYSFINDADAPTERS_GETINFO = 107, + /** Default response was never updated with actual error code. */ + HPI_ERROR_INVALID_RESPONSE = 108, + /** wSize field of response was not updated, + indicating that the message was not processed. */ + HPI_ERROR_PROCESSING_MESSAGE = 109, + /** The network did not respond in a timely manner. */ + HPI_ERROR_NETWORK_TIMEOUT = 110, + /** An HPI handle is invalid (uninitialised?). */ + HPI_ERROR_INVALID_HANDLE = 111, + /** A function or attribute has not been implemented yet. */ + HPI_ERROR_UNIMPLEMENTED = 112, + /** There are too many clients attempting to access a network resource. */ + HPI_ERROR_NETWORK_TOO_MANY_CLIENTS = 113, + /** Response buffer passed to HPI_Message was smaller than returned response */ + HPI_ERROR_RESPONSE_BUFFER_TOO_SMALL = 114, + /** The returned response did not match the sent message */ + HPI_ERROR_RESPONSE_MISMATCH = 115, + + /** Too many adapters.*/ + HPI_ERROR_TOO_MANY_ADAPTERS = 200, + /** Bad adpater. */ + HPI_ERROR_BAD_ADAPTER = 201, + /** Adapter number out of range or not set properly. */ + HPI_ERROR_BAD_ADAPTER_NUMBER = 202, + /** 2 adapters with the same adapter number. */ + HPI_DUPLICATE_ADAPTER_NUMBER = 203, + /** DSP code failed to bootload. */ + HPI_ERROR_DSP_BOOTLOAD = 204, + /** Adapter failed DSP code self test. */ + HPI_ERROR_DSP_SELFTEST = 205, + /** Couldn't find or open the DSP code file. */ + HPI_ERROR_DSP_FILE_NOT_FOUND = 206, + /** Internal DSP hardware error. */ + HPI_ERROR_DSP_HARDWARE = 207, + /** Could not allocate memory in DOS. */ + HPI_ERROR_DOS_MEMORY_ALLOC = 208, + /** Could not allocate memory */ + HPI_ERROR_MEMORY_ALLOC = 208, + /** Failed to correctly load/config PLD .*/ + HPI_ERROR_PLD_LOAD = 209, + /** Unexpected end of file, block length too big etc. */ + HPI_ERROR_DSP_FILE_FORMAT = 210, + + /** Found but could not open DSP code file. */ + HPI_ERROR_DSP_FILE_ACCESS_DENIED = 211, + /** First DSP code section header not found in DSP file. */ + HPI_ERROR_DSP_FILE_NO_HEADER = 212, + /** File read operation on DSP code file failed. */ + HPI_ERROR_DSP_FILE_READ_ERROR = 213, + /** DSP code for adapter family not found. */ + HPI_ERROR_DSP_SECTION_NOT_FOUND = 214, + /** Other OS specific error opening DSP file. */ + HPI_ERROR_DSP_FILE_OTHER_ERROR = 215, + /** Sharing violation opening DSP code file. */ + HPI_ERROR_DSP_FILE_SHARING_VIOLATION = 216, + /** DSP code section header had size == 0. */ + HPI_ERROR_DSP_FILE_NULL_HEADER = 217, + + /** Base number for flash errors. */ + HPI_ERROR_FLASH = 220, + + /** Flash has bad checksum */ + HPI_ERROR_BAD_CHECKSUM = (HPI_ERROR_FLASH + 1), + HPI_ERROR_BAD_SEQUENCE = (HPI_ERROR_FLASH + 2), + HPI_ERROR_FLASH_ERASE = (HPI_ERROR_FLASH + 3), + HPI_ERROR_FLASH_PROGRAM = (HPI_ERROR_FLASH + 4), + HPI_ERROR_FLASH_VERIFY = (HPI_ERROR_FLASH + 5), + HPI_ERROR_FLASH_TYPE = (HPI_ERROR_FLASH + 6), + HPI_ERROR_FLASH_START = (HPI_ERROR_FLASH + 7), + + /** Reserved for OEMs. */ + HPI_ERROR_RESERVED_1 = 290, + + /** Stream does not exist. */ + HPI_ERROR_INVALID_STREAM = 300, + /** Invalid compression format. */ + HPI_ERROR_INVALID_FORMAT = 301, + /** Invalid format samplerate */ + HPI_ERROR_INVALID_SAMPLERATE = 302, + /** Invalid format number of channels. */ + HPI_ERROR_INVALID_CHANNELS = 303, + /** Invalid format bitrate. */ + HPI_ERROR_INVALID_BITRATE = 304, + /** Invalid datasize used for stream read/write. */ + HPI_ERROR_INVALID_DATASIZE = 305, + /** Stream buffer is full during stream write. */ + HPI_ERROR_BUFFER_FULL = 306, + /** Stream buffer is empty during stream read. */ + HPI_ERROR_BUFFER_EMPTY = 307, + /** Invalid datasize used for stream read/write. */ + HPI_ERROR_INVALID_DATA_TRANSFER = 308, + /** Packet ordering error for stream read/write. */ + HPI_ERROR_INVALID_PACKET_ORDER = 309, + + /** Object can't do requested operation in its current + state, eg set format, change rec mux state while recording.*/ + HPI_ERROR_INVALID_OPERATION = 310, + + /** Where an SRG is shared amongst streams, an incompatible samplerate is one + that is different to any currently playing or recording stream. */ + HPI_ERROR_INCOMPATIBLE_SAMPLERATE = 311, + /** Adapter mode is illegal.*/ + HPI_ERROR_BAD_ADAPTER_MODE = 312, + + /** There have been too many attempts to set the adapter's + capabilities (using bad keys), the card should be returned + to ASI if further capabilities updates are required */ + HPI_ERROR_TOO_MANY_CAPABILITY_CHANGE_ATTEMPTS = 313, + /** Streams on different adapters cannot be grouped. */ + HPI_ERROR_NO_INTERADAPTER_GROUPS = 314, + /** Streams on different DSPs cannot be grouped. */ + HPI_ERROR_NO_INTERDSP_GROUPS = 315, + + /** Invalid mixer node for this adapter. */ + HPI_ERROR_INVALID_NODE = 400, + /** Invalid control. */ + HPI_ERROR_INVALID_CONTROL = 401, + /** Invalid control value was passed. */ + HPI_ERROR_INVALID_CONTROL_VALUE = 402, + /** Control attribute not supported by this control. */ + HPI_ERROR_INVALID_CONTROL_ATTRIBUTE = 403, + /** Control is disabled. */ + HPI_ERROR_CONTROL_DISABLED = 404, + /** I2C transaction failed due to a missing ACK. */ + HPI_ERROR_CONTROL_I2C_MISSING_ACK = 405, + /** Control attribute is valid, but not supported by this hardware. */ + HPI_ERROR_UNSUPPORTED_CONTROL_ATTRIBUTE = 406, + /** Control is busy, or coming out of + reset and cannot be accessed at this time. */ + HPI_ERROR_CONTROL_NOT_READY = 407, + + /** Non volatile memory */ + HPI_ERROR_NVMEM_BUSY = 450, + HPI_ERROR_NVMEM_FULL = 451, + HPI_ERROR_NVMEM_FAIL = 452, + + /** I2C */ + HPI_ERROR_I2C_MISSING_ACK = HPI_ERROR_CONTROL_I2C_MISSING_ACK, + HPI_ERROR_I2C_BAD_ADR = 460, + + /** Entity errors */ + HPI_ERROR_ENTITY_TYPE_MISMATCH = 470, + HPI_ERROR_ENTITY_ITEM_COUNT = 471, + HPI_ERROR_ENTITY_TYPE_INVALID = 472, + HPI_ERROR_ENTITY_ROLE_INVALID = 473, + + /* AES18 specific errors were 500..507 */ + + /** custom error to use for debugging */ + HPI_ERROR_CUSTOM = 600, + + /** hpioct32.c can't obtain mutex */ + HPI_ERROR_MUTEX_TIMEOUT = 700, + + /** errors from HPI backends have values >= this */ + HPI_ERROR_BACKEND_BASE = 900, + + /** indicates a cached u16 value is invalid. */ + HPI_ERROR_ILLEGAL_CACHE_VALUE = 0xffff +}; + +/** \defgroup maximums HPI maximum values +\{ +*/ +/** Maximum number of adapters per HPI sub-system + WARNING: modifying this value changes the response structure size.*/ +#define HPI_MAX_ADAPTERS 20 +/** Maximum number of in or out streams per adapter */ +#define HPI_MAX_STREAMS 16 +#define HPI_MAX_CHANNELS 2 /* per stream */ +#define HPI_MAX_NODES 8 /* per mixer ? */ +#define HPI_MAX_CONTROLS 4 /* per node ? */ +/** maximum number of ancillary bytes per MPEG frame */ +#define HPI_MAX_ANC_BYTES_PER_FRAME (64) +#define HPI_STRING_LEN 16 + +/** Velocity units */ +#define HPI_OSTREAM_VELOCITY_UNITS 4096 +/** OutStream timescale units */ +#define HPI_OSTREAM_TIMESCALE_UNITS 10000 +/** OutStream timescale passthrough - turns timescaling on in passthough mode */ +#define HPI_OSTREAM_TIMESCALE_PASSTHROUGH 99999 + +/**\}*/ + +/* ////////////////////////////////////////////////////////////////////// */ +/* STRUCTURES */ +#ifndef DISABLE_PRAGMA_PACK1 +#pragma pack(push, 1) +#endif + +/** Structure containing sample format information. + See also HPI_FormatCreate(). + */ +struct hpi_format { + u32 sample_rate; + /**< 11025, 32000, 44100 ... */ + u32 bit_rate; /**< for MPEG */ + u32 attributes; + /**< Stereo/JointStereo/Mono */ + u16 mode_legacy; + /**< Legacy ancillary mode or idle bit */ + u16 unused; /**< unused */ + u16 channels; /**< 1,2..., (or ancillary mode or idle bit */ + u16 format; /**< HPI_FORMAT_PCM16, _MPEG etc. see #HPI_FORMATS. */ +}; + +struct hpi_anc_frame { + u32 valid_bits_in_this_frame; + u8 b_data[HPI_MAX_ANC_BYTES_PER_FRAME]; +}; + +/** An object for containing a single async event. +*/ +struct hpi_async_event { + u16 event_type; /**< type of event. \sa async_event */ + u16 sequence; /**< sequence number, allows lost event detection */ + u32 state; /**< new state */ + u32 h_object; /**< handle to the object returning the event. */ + union { + struct { + u16 index; /**< GPIO bit index. */ + } gpio; + struct { + u16 node_index; /**< what node is the control on ? */ + u16 node_type; /**< what type of node is the control on ? */ + } control; + } u; +}; + +/*/////////////////////////////////////////////////////////////////////////// */ +/* Public HPI Entity related definitions */ + +struct hpi_entity; + +enum e_entity_type { + entity_type_null, + entity_type_sequence, /* sequence of potentially heterogeneous TLV entities */ + + entity_type_reference, /* refers to a TLV entity or NULL */ + + entity_type_int, /* 32 bit */ + entity_type_float, /* ieee754 binary 32 bit encoding */ + entity_type_double, + + entity_type_cstring, + entity_type_octet, + entity_type_ip4_address, + entity_type_ip6_address, + entity_type_mac_address, + + LAST_ENTITY_TYPE +}; + +enum e_entity_role { + entity_role_null, + entity_role_value, + entity_role_classname, + + entity_role_units, + entity_role_flags, + entity_role_range, + + entity_role_mapping, + entity_role_enum, + + entity_role_instance_of, + entity_role_depends_on, + entity_role_member_of_group, + entity_role_value_constraint, + entity_role_parameter_port, + + entity_role_block, + entity_role_node_group, + entity_role_audio_port, + entity_role_clock_port, + LAST_ENTITY_ROLE +}; + +/* skip host side function declarations for + DSP compile and documentation extraction */ + +struct hpi_hsubsys { + int not_really_used; +}; + +#ifndef DISABLE_PRAGMA_PACK1 +#pragma pack(pop) +#endif + +/*////////////////////////////////////////////////////////////////////////// */ +/* HPI FUNCTIONS */ + +/*/////////////////////////// */ +/* DATA and FORMAT and STREAM */ + +u16 hpi_stream_estimate_buffer_size(struct hpi_format *pF, + u32 host_polling_rate_in_milli_seconds, u32 *recommended_buffer_size); + +/*/////////// */ +/* SUB SYSTEM */ +struct hpi_hsubsys *hpi_subsys_create(void + ); + +void hpi_subsys_free(const struct hpi_hsubsys *ph_subsys); + +u16 hpi_subsys_get_version(const struct hpi_hsubsys *ph_subsys, + u32 *pversion); + +u16 hpi_subsys_get_version_ex(const struct hpi_hsubsys *ph_subsys, + u32 *pversion_ex); + +u16 hpi_subsys_get_info(const struct hpi_hsubsys *ph_subsys, u32 *pversion, + u16 *pw_num_adapters, u16 aw_adapter_list[], u16 list_length); + +u16 hpi_subsys_find_adapters(const struct hpi_hsubsys *ph_subsys, + u16 *pw_num_adapters, u16 aw_adapter_list[], u16 list_length); + +u16 hpi_subsys_get_num_adapters(const struct hpi_hsubsys *ph_subsys, + int *pn_num_adapters); + +u16 hpi_subsys_get_adapter(const struct hpi_hsubsys *ph_subsys, int iterator, + u32 *padapter_index, u16 *pw_adapter_type); + +u16 hpi_subsys_ssx2_bypass(const struct hpi_hsubsys *ph_subsys, u16 bypass); + +u16 hpi_subsys_set_host_network_interface(const struct hpi_hsubsys *ph_subsys, + const char *sz_interface); + +/*///////// */ +/* ADAPTER */ + +u16 hpi_adapter_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index); + +u16 hpi_adapter_close(const struct hpi_hsubsys *ph_subsys, u16 adapter_index); + +u16 hpi_adapter_get_info(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 *pw_num_outstreams, u16 *pw_num_instreams, + u16 *pw_version, u32 *pserial_number, u16 *pw_adapter_type); + +u16 hpi_adapter_get_module_by_index(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 module_index, u16 *pw_num_outputs, + u16 *pw_num_inputs, u16 *pw_version, u32 *pserial_number, + u16 *pw_module_type, u32 *ph_module); + +u16 hpi_adapter_set_mode(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u32 adapter_mode); + +u16 hpi_adapter_set_mode_ex(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u32 adapter_mode, u16 query_or_set); + +u16 hpi_adapter_get_mode(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u32 *padapter_mode); + +u16 hpi_adapter_get_assert(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 *assert_present, char *psz_assert, + u16 *pw_line_number); + +u16 hpi_adapter_get_assert_ex(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 *assert_present, char *psz_assert, + u32 *pline_number, u16 *pw_assert_on_dsp); + +u16 hpi_adapter_test_assert(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 assert_id); + +u16 hpi_adapter_enable_capability(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 capability, u32 key); + +u16 hpi_adapter_self_test(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index); + +u16 hpi_adapter_debug_read(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u32 dsp_address, char *p_bytes, int *count_bytes); + +u16 hpi_adapter_set_property(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 property, u16 paramter1, u16 paramter2); + +u16 hpi_adapter_get_property(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 property, u16 *pw_paramter1, + u16 *pw_paramter2); + +u16 hpi_adapter_enumerate_property(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 index, u16 what_to_enumerate, + u16 property_index, u32 *psetting); + +/*////////////// */ +/* NonVol Memory */ +u16 hpi_nv_memory_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index, + u32 *ph_nv_memory, u16 *pw_size_in_bytes); + +u16 hpi_nv_memory_read_byte(const struct hpi_hsubsys *ph_subsys, + u32 h_nv_memory, u16 index, u16 *pw_data); + +u16 hpi_nv_memory_write_byte(const struct hpi_hsubsys *ph_subsys, + u32 h_nv_memory, u16 index, u16 data); + +/*////////////// */ +/* Digital I/O */ +u16 hpi_gpio_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index, + u32 *ph_gpio, u16 *pw_number_input_bits, u16 *pw_number_output_bits); + +u16 hpi_gpio_read_bit(const struct hpi_hsubsys *ph_subsys, u32 h_gpio, + u16 bit_index, u16 *pw_bit_data); + +u16 hpi_gpio_read_all_bits(const struct hpi_hsubsys *ph_subsys, u32 h_gpio, + u16 aw_all_bit_data[4] + ); + +u16 hpi_gpio_write_bit(const struct hpi_hsubsys *ph_subsys, u32 h_gpio, + u16 bit_index, u16 bit_data); + +u16 hpi_gpio_write_status(const struct hpi_hsubsys *ph_subsys, u32 h_gpio, + u16 aw_all_bit_data[4] + ); + +/**********************/ +/* Async Event Object */ +/**********************/ +u16 hpi_async_event_open(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u32 *ph_async); + +u16 hpi_async_event_close(const struct hpi_hsubsys *ph_subsys, u32 h_async); + +u16 hpi_async_event_wait(const struct hpi_hsubsys *ph_subsys, u32 h_async, + u16 maximum_events, struct hpi_async_event *p_events, + u16 *pw_number_returned); + +u16 hpi_async_event_get_count(const struct hpi_hsubsys *ph_subsys, + u32 h_async, u16 *pw_count); + +u16 hpi_async_event_get(const struct hpi_hsubsys *ph_subsys, u32 h_async, + u16 maximum_events, struct hpi_async_event *p_events, + u16 *pw_number_returned); + +/*/////////// */ +/* WATCH-DOG */ +u16 hpi_watchdog_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index, + u32 *ph_watchdog); + +u16 hpi_watchdog_set_time(const struct hpi_hsubsys *ph_subsys, u32 h_watchdog, + u32 time_millisec); + +u16 hpi_watchdog_ping(const struct hpi_hsubsys *ph_subsys, u32 h_watchdog); + +/**************/ +/* OUT STREAM */ +/**************/ +u16 hpi_outstream_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index, + u16 outstream_index, u32 *ph_outstream); + +u16 hpi_outstream_close(const struct hpi_hsubsys *ph_subsys, u32 h_outstream); + +u16 hpi_outstream_get_info_ex(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u16 *pw_state, u32 *pbuffer_size, u32 *pdata_to_play, + u32 *psamples_played, u32 *pauxiliary_data_to_play); + +u16 hpi_outstream_write_buf(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, const u8 *pb_write_buf, u32 bytes_to_write, + const struct hpi_format *p_format); + +u16 hpi_outstream_start(const struct hpi_hsubsys *ph_subsys, u32 h_outstream); + +u16 hpi_outstream_wait_start(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream); + +u16 hpi_outstream_stop(const struct hpi_hsubsys *ph_subsys, u32 h_outstream); + +u16 hpi_outstream_sinegen(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream); + +u16 hpi_outstream_reset(const struct hpi_hsubsys *ph_subsys, u32 h_outstream); + +u16 hpi_outstream_query_format(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, struct hpi_format *p_format); + +u16 hpi_outstream_set_format(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, struct hpi_format *p_format); + +u16 hpi_outstream_set_punch_in_out(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u32 punch_in_sample, u32 punch_out_sample); + +u16 hpi_outstream_set_velocity(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, short velocity); + +u16 hpi_outstream_ancillary_reset(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u16 mode); + +u16 hpi_outstream_ancillary_get_info(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u32 *pframes_available); + +u16 hpi_outstream_ancillary_read(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, struct hpi_anc_frame *p_anc_frame_buffer, + u32 anc_frame_buffer_size_in_bytes, + u32 number_of_ancillary_frames_to_read); + +u16 hpi_outstream_set_time_scale(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u32 time_scaleX10000); + +u16 hpi_outstream_host_buffer_allocate(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u32 size_in_bytes); + +u16 hpi_outstream_host_buffer_free(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream); + +u16 hpi_outstream_group_add(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u32 h_stream); + +u16 hpi_outstream_group_get_map(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u32 *poutstream_map, u32 *pinstream_map); + +u16 hpi_outstream_group_reset(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream); + +/*////////// */ +/* IN_STREAM */ +u16 hpi_instream_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index, + u16 instream_index, u32 *ph_instream); + +u16 hpi_instream_close(const struct hpi_hsubsys *ph_subsys, u32 h_instream); + +u16 hpi_instream_query_format(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, const struct hpi_format *p_format); + +u16 hpi_instream_set_format(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, const struct hpi_format *p_format); + +u16 hpi_instream_read_buf(const struct hpi_hsubsys *ph_subsys, u32 h_instream, + u8 *pb_read_buf, u32 bytes_to_read); + +u16 hpi_instream_start(const struct hpi_hsubsys *ph_subsys, u32 h_instream); + +u16 hpi_instream_wait_start(const struct hpi_hsubsys *ph_subsys, + u32 h_instream); + +u16 hpi_instream_stop(const struct hpi_hsubsys *ph_subsys, u32 h_instream); + +u16 hpi_instream_reset(const struct hpi_hsubsys *ph_subsys, u32 h_instream); + +u16 hpi_instream_get_info_ex(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, u16 *pw_state, u32 *pbuffer_size, u32 *pdata_recorded, + u32 *psamples_recorded, u32 *pauxiliary_data_recorded); + +u16 hpi_instream_ancillary_reset(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, u16 bytes_per_frame, u16 mode, u16 alignment, + u16 idle_bit); + +u16 hpi_instream_ancillary_get_info(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, u32 *pframe_space); + +u16 hpi_instream_ancillary_write(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, const struct hpi_anc_frame *p_anc_frame_buffer, + u32 anc_frame_buffer_size_in_bytes, + u32 number_of_ancillary_frames_to_write); + +u16 hpi_instream_host_buffer_allocate(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, u32 size_in_bytes); + +u16 hpi_instream_host_buffer_free(const struct hpi_hsubsys *ph_subsys, + u32 h_instream); + +u16 hpi_instream_group_add(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, u32 h_stream); + +u16 hpi_instream_group_get_map(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, u32 *poutstream_map, u32 *pinstream_map); + +u16 hpi_instream_group_reset(const struct hpi_hsubsys *ph_subsys, + u32 h_instream); + +/*********/ +/* MIXER */ +/*********/ +u16 hpi_mixer_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index, + u32 *ph_mixer); + +u16 hpi_mixer_close(const struct hpi_hsubsys *ph_subsys, u32 h_mixer); + +u16 hpi_mixer_get_control(const struct hpi_hsubsys *ph_subsys, u32 h_mixer, + u16 src_node_type, u16 src_node_type_index, u16 dst_node_type, + u16 dst_node_type_index, u16 control_type, u32 *ph_control); + +u16 hpi_mixer_get_control_by_index(const struct hpi_hsubsys *ph_subsys, + u32 h_mixer, u16 control_index, u16 *pw_src_node_type, + u16 *pw_src_node_index, u16 *pw_dst_node_type, u16 *pw_dst_node_index, + u16 *pw_control_type, u32 *ph_control); + +u16 hpi_mixer_store(const struct hpi_hsubsys *ph_subsys, u32 h_mixer, + enum HPI_MIXER_STORE_COMMAND command, u16 index); +/*************************/ +/* mixer CONTROLS */ +/*************************/ +/*************************/ +/* volume control */ +/*************************/ +u16 hpi_volume_set_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_gain0_01dB[HPI_MAX_CHANNELS] + ); + +u16 hpi_volume_get_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_gain0_01dB_out[HPI_MAX_CHANNELS] + ); + +#define hpi_volume_get_range hpi_volume_query_range +u16 hpi_volume_query_range(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short *min_gain_01dB, short *max_gain_01dB, short *step_gain_01dB); + +u16 hpi_volume_query_channels(const struct hpi_hsubsys *ph_subsys, + const u32 h_volume, u32 *p_channels); + +u16 hpi_volume_auto_fade(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_stop_gain0_01dB[HPI_MAX_CHANNELS], u32 duration_ms); + +u16 hpi_volume_auto_fade_profile(const struct hpi_hsubsys *ph_subsys, + u32 h_control, short an_stop_gain0_01dB[HPI_MAX_CHANNELS], + u32 duration_ms, u16 profile); + +/*************************/ +/* level control */ +/*************************/ +u16 hpi_level_query_range(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short *min_gain_01dB, short *max_gain_01dB, short *step_gain_01dB); + +u16 hpi_level_set_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_gain0_01dB[HPI_MAX_CHANNELS] + ); + +u16 hpi_level_get_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_gain0_01dB_out[HPI_MAX_CHANNELS] + ); + +/*************************/ +/* meter control */ +/*************************/ +u16 hpi_meter_query_channels(const struct hpi_hsubsys *ph_subsys, + const u32 h_meter, u32 *p_channels); + +u16 hpi_meter_get_peak(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_peak0_01dB_out[HPI_MAX_CHANNELS] + ); + +u16 hpi_meter_get_rms(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_peak0_01dB_out[HPI_MAX_CHANNELS] + ); + +u16 hpi_meter_set_peak_ballistics(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 attack, u16 decay); + +u16 hpi_meter_set_rms_ballistics(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 attack, u16 decay); + +u16 hpi_meter_get_peak_ballistics(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *attack, u16 *decay); + +u16 hpi_meter_get_rms_ballistics(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *attack, u16 *decay); + +/*************************/ +/* channel mode control */ +/*************************/ +u16 hpi_channel_mode_query_mode(const struct hpi_hsubsys *ph_subsys, + const u32 h_mode, const u32 index, u16 *pw_mode); + +u16 hpi_channel_mode_set(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u16 mode); + +u16 hpi_channel_mode_get(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u16 *mode); + +/*************************/ +/* Tuner control */ +/*************************/ +u16 hpi_tuner_query_band(const struct hpi_hsubsys *ph_subsys, + const u32 h_tuner, const u32 index, u16 *pw_band); + +u16 hpi_tuner_set_band(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u16 band); + +u16 hpi_tuner_get_band(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u16 *pw_band); + +u16 hpi_tuner_query_frequency(const struct hpi_hsubsys *ph_subsys, + const u32 h_tuner, const u32 index, const u16 band, u32 *pfreq); + +u16 hpi_tuner_set_frequency(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 freq_ink_hz); + +u16 hpi_tuner_get_frequency(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *pw_freq_ink_hz); + +u16 hpi_tuner_getRF_level(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short *pw_level); + +u16 hpi_tuner_get_rawRF_level(const struct hpi_hsubsys *ph_subsys, + u32 h_control, short *pw_level); + +u16 hpi_tuner_query_gain(const struct hpi_hsubsys *ph_subsys, + const u32 h_tuner, const u32 index, u16 *pw_gain); + +u16 hpi_tuner_set_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short gain); + +u16 hpi_tuner_get_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short *pn_gain); + +u16 hpi_tuner_get_status(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u16 *pw_status_mask, u16 *pw_status); + +u16 hpi_tuner_set_mode(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u32 mode, u32 value); + +u16 hpi_tuner_get_mode(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u32 mode, u32 *pn_value); + +u16 hpi_tuner_getRDS(const struct hpi_hsubsys *ph_subsys, u32 h_control, + char *p_rds_data); + +u16 hpi_tuner_query_deemphasis(const struct hpi_hsubsys *ph_subsys, + const u32 h_tuner, const u32 index, const u16 band, u32 *pdeemphasis); + +u16 hpi_tuner_set_deemphasis(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 deemphasis); +u16 hpi_tuner_get_deemphasis(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *pdeemphasis); + +u16 hpi_tuner_query_program(const struct hpi_hsubsys *ph_subsys, + const u32 h_tuner, u32 *pbitmap_program); + +u16 hpi_tuner_set_program(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u32 program); + +u16 hpi_tuner_get_program(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u32 *pprogram); + +u16 hpi_tuner_get_hd_radio_dsp_version(const struct hpi_hsubsys *ph_subsys, + u32 h_control, char *psz_dsp_version, const u32 string_size); + +u16 hpi_tuner_get_hd_radio_sdk_version(const struct hpi_hsubsys *ph_subsys, + u32 h_control, char *psz_sdk_version, const u32 string_size); + +u16 hpi_tuner_get_hd_radio_signal_quality(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *pquality); + +/****************************/ +/* PADs control */ +/****************************/ + +u16 HPI_PAD__get_channel_name(const struct hpi_hsubsys *ph_subsys, + u32 h_control, char *psz_string, const u32 string_length); + +u16 HPI_PAD__get_artist(const struct hpi_hsubsys *ph_subsys, u32 h_control, + char *psz_string, const u32 string_length); + +u16 HPI_PAD__get_title(const struct hpi_hsubsys *ph_subsys, u32 h_control, + char *psz_string, const u32 string_length); + +u16 HPI_PAD__get_comment(const struct hpi_hsubsys *ph_subsys, u32 h_control, + char *psz_string, const u32 string_length); + +u16 HPI_PAD__get_program_type(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *ppTY); + +u16 HPI_PAD__get_rdsPI(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u32 *ppI); + +u16 HPI_PAD__get_program_type_string(const struct hpi_hsubsys *ph_subsys, + u32 h_control, const u32 data_type, const u32 pTY, char *psz_string, + const u32 string_length); + +/****************************/ +/* AES/EBU Receiver control */ +/****************************/ +u16 HPI_AESEBU__receiver_query_format(const struct hpi_hsubsys *ph_subsys, + const u32 h_aes_rx, const u32 index, u16 *pw_format); + +u16 HPI_AESEBU__receiver_set_format(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 source); + +u16 HPI_AESEBU__receiver_get_format(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_source); + +u16 HPI_AESEBU__receiver_get_sample_rate(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *psample_rate); + +u16 HPI_AESEBU__receiver_get_user_data(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 index, u16 *pw_data); + +u16 HPI_AESEBU__receiver_get_channel_status(const struct hpi_hsubsys + *ph_subsys, u32 h_control, u16 index, u16 *pw_data); + +u16 HPI_AESEBU__receiver_get_error_status(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_error_data); + +/*******************************/ +/* AES/EBU Transmitter control */ +/*******************************/ +u16 HPI_AESEBU__transmitter_set_sample_rate(const struct hpi_hsubsys + *ph_subsys, u32 h_control, u32 sample_rate); + +u16 HPI_AESEBU__transmitter_set_user_data(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 index, u16 data); + +u16 HPI_AESEBU__transmitter_set_channel_status(const struct hpi_hsubsys + *ph_subsys, u32 h_control, u16 index, u16 data); + +u16 HPI_AESEBU__transmitter_get_channel_status(const struct hpi_hsubsys + *ph_subsys, u32 h_control, u16 index, u16 *pw_data); + +u16 HPI_AESEBU__transmitter_query_format(const struct hpi_hsubsys *ph_subsys, + const u32 h_aes_tx, const u32 index, u16 *pw_format); + +u16 HPI_AESEBU__transmitter_set_format(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 output_format); + +u16 HPI_AESEBU__transmitter_get_format(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_output_format); + +/***********************/ +/* multiplexer control */ +/***********************/ +u16 hpi_multiplexer_set_source(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 source_node_type, u16 source_node_index); + +u16 hpi_multiplexer_get_source(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *source_node_type, u16 *source_node_index); + +u16 hpi_multiplexer_query_source(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 index, u16 *source_node_type, + u16 *source_node_index); + +/***************/ +/* VOX control */ +/***************/ +u16 hpi_vox_set_threshold(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_gain0_01dB); + +u16 hpi_vox_get_threshold(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short *an_gain0_01dB); + +/*********************/ +/* Bitstream control */ +/*********************/ +u16 hpi_bitstream_set_clock_edge(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 edge_type); + +u16 hpi_bitstream_set_data_polarity(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 polarity); + +u16 hpi_bitstream_get_activity(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_clk_activity, u16 *pw_data_activity); + +/***********************/ +/* SampleClock control */ +/***********************/ + +u16 hpi_sample_clock_query_source(const struct hpi_hsubsys *ph_subsys, + const u32 h_clock, const u32 index, u16 *pw_source); + +u16 hpi_sample_clock_set_source(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 source); + +u16 hpi_sample_clock_get_source(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_source); + +u16 hpi_sample_clock_query_source_index(const struct hpi_hsubsys *ph_subsys, + const u32 h_clock, const u32 index, const u32 source, + u16 *pw_source_index); + +u16 hpi_sample_clock_set_source_index(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 source_index); + +u16 hpi_sample_clock_get_source_index(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_source_index); + +u16 hpi_sample_clock_get_sample_rate(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *psample_rate); + +u16 hpi_sample_clock_query_local_rate(const struct hpi_hsubsys *ph_subsys, + const u32 h_clock, const u32 index, u32 *psource); + +u16 hpi_sample_clock_set_local_rate(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 sample_rate); + +u16 hpi_sample_clock_get_local_rate(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *psample_rate); + +u16 hpi_sample_clock_set_auto(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 enable); + +u16 hpi_sample_clock_get_auto(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *penable); + +u16 hpi_sample_clock_set_local_rate_lock(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 lock); + +u16 hpi_sample_clock_get_local_rate_lock(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *plock); + +/***********************/ +/* Microphone control */ +/***********************/ +u16 hpi_microphone_set_phantom_power(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 on_off); + +u16 hpi_microphone_get_phantom_power(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_on_off); + +/******************************* + Parametric Equalizer control +*******************************/ +u16 hpi_parametricEQ__get_info(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_number_of_bands, u16 *pw_enabled); + +u16 hpi_parametricEQ__set_state(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 on_off); + +u16 hpi_parametricEQ__set_band(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 index, u16 type, u32 frequency_hz, short q100, + short gain0_01dB); + +u16 hpi_parametricEQ__get_band(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 index, u16 *pn_type, u32 *pfrequency_hz, + short *pnQ100, short *pn_gain0_01dB); + +u16 hpi_parametricEQ__get_coeffs(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 index, short coeffs[5] + ); + +/******************************* + Compressor Expander control +*******************************/ + +u16 hpi_compander_set(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u16 attack, u16 decay, short ratio100, short threshold0_01dB, + short makeup_gain0_01dB); + +u16 hpi_compander_get(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u16 *pw_attack, u16 *pw_decay, short *pw_ratio100, + short *pn_threshold0_01dB, short *pn_makeup_gain0_01dB); + +/******************************* + Cobranet HMI control +*******************************/ +u16 hpi_cobranet_hmi_write(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u32 hmi_address, u32 byte_count, u8 *pb_data); + +u16 hpi_cobranet_hmi_read(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u32 hmi_address, u32 max_byte_count, u32 *pbyte_count, u8 *pb_data); + +u16 hpi_cobranet_hmi_get_status(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *pstatus, u32 *preadable_size, + u32 *pwriteable_size); + +/*Read the current IP address +*/ +u16 hpi_cobranet_getI_paddress(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *pi_paddress); + +/* Write the current IP address +*/ +u16 hpi_cobranet_setI_paddress(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 i_paddress); + +/* Read the static IP address +*/ +u16 hpi_cobranet_get_staticI_paddress(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *pi_paddress); + +/* Write the static IP address +*/ +u16 hpi_cobranet_set_staticI_paddress(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 i_paddress); + +/* Read the MAC address +*/ +u16 hpi_cobranet_getMA_caddress(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *pmAC_MS_bs, u32 *pmAC_LS_bs); + +/******************************* + Tone Detector control +*******************************/ +u16 hpi_tone_detector_get_state(const struct hpi_hsubsys *ph_subsys, u32 hC, + u32 *state); + +u16 hpi_tone_detector_set_enable(const struct hpi_hsubsys *ph_subsys, u32 hC, + u32 enable); + +u16 hpi_tone_detector_get_enable(const struct hpi_hsubsys *ph_subsys, u32 hC, + u32 *enable); + +u16 hpi_tone_detector_set_event_enable(const struct hpi_hsubsys *ph_subsys, + u32 hC, u32 event_enable); + +u16 hpi_tone_detector_get_event_enable(const struct hpi_hsubsys *ph_subsys, + u32 hC, u32 *event_enable); + +u16 hpi_tone_detector_set_threshold(const struct hpi_hsubsys *ph_subsys, + u32 hC, int threshold); + +u16 hpi_tone_detector_get_threshold(const struct hpi_hsubsys *ph_subsys, + u32 hC, int *threshold); + +u16 hpi_tone_detector_get_frequency(const struct hpi_hsubsys *ph_subsys, + u32 hC, u32 index, u32 *frequency); + +/******************************* + Silence Detector control +*******************************/ +u16 hpi_silence_detector_get_state(const struct hpi_hsubsys *ph_subsys, + u32 hC, u32 *state); + +u16 hpi_silence_detector_set_enable(const struct hpi_hsubsys *ph_subsys, + u32 hC, u32 enable); + +u16 hpi_silence_detector_get_enable(const struct hpi_hsubsys *ph_subsys, + u32 hC, u32 *enable); + +u16 hpi_silence_detector_set_event_enable(const struct hpi_hsubsys *ph_subsys, + u32 hC, u32 event_enable); + +u16 hpi_silence_detector_get_event_enable(const struct hpi_hsubsys *ph_subsys, + u32 hC, u32 *event_enable); + +u16 hpi_silence_detector_set_delay(const struct hpi_hsubsys *ph_subsys, + u32 hC, u32 delay); + +u16 hpi_silence_detector_get_delay(const struct hpi_hsubsys *ph_subsys, + u32 hC, u32 *delay); + +u16 hpi_silence_detector_set_threshold(const struct hpi_hsubsys *ph_subsys, + u32 hC, int threshold); + +u16 hpi_silence_detector_get_threshold(const struct hpi_hsubsys *ph_subsys, + u32 hC, int *threshold); + +/******************************* + Universal control +*******************************/ +u16 hpi_entity_find_next(struct hpi_entity *container_entity, + enum e_entity_type type, enum e_entity_role role, int recursive_flag, + struct hpi_entity **current_match); + +u16 hpi_entity_copy_value_from(struct hpi_entity *entity, + enum e_entity_type type, size_t item_count, void *value_dst_p); + +u16 hpi_entity_unpack(struct hpi_entity *entity, enum e_entity_type *type, + size_t *items, enum e_entity_role *role, void **value); + +u16 hpi_entity_alloc_and_pack(const enum e_entity_type type, + const size_t item_count, const enum e_entity_role role, void *value, + struct hpi_entity **entity); + +void hpi_entity_free(struct hpi_entity *entity); + +u16 hpi_universal_info(const struct hpi_hsubsys *ph_subsys, u32 hC, + struct hpi_entity **info); + +u16 hpi_universal_get(const struct hpi_hsubsys *ph_subsys, u32 hC, + struct hpi_entity **value); + +u16 hpi_universal_set(const struct hpi_hsubsys *ph_subsys, u32 hC, + struct hpi_entity *value); + +/*/////////// */ +/* DSP CLOCK */ +/*/////////// */ +u16 hpi_clock_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index, + u32 *ph_dsp_clock); + +u16 hpi_clock_set_time(const struct hpi_hsubsys *ph_subsys, u32 h_clock, + u16 hour, u16 minute, u16 second, u16 milli_second); + +u16 hpi_clock_get_time(const struct hpi_hsubsys *ph_subsys, u32 h_clock, + u16 *pw_hour, u16 *pw_minute, u16 *pw_second, u16 *pw_milli_second); + +/*/////////// */ +/* PROFILE */ +/*/////////// */ +u16 hpi_profile_open_all(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 profile_index, u32 *ph_profile, + u16 *pw_max_profiles); + +u16 hpi_profile_get(const struct hpi_hsubsys *ph_subsys, u32 h_profile, + u16 index, u16 *pw_seconds, u32 *pmicro_seconds, u32 *pcall_count, + u32 *pmax_micro_seconds, u32 *pmin_micro_seconds); + +u16 hpi_profile_start_all(const struct hpi_hsubsys *ph_subsys, u32 h_profile); + +u16 hpi_profile_stop_all(const struct hpi_hsubsys *ph_subsys, u32 h_profile); + +u16 hpi_profile_get_name(const struct hpi_hsubsys *ph_subsys, u32 h_profile, + u16 index, char *sz_profile_name, u16 profile_name_length); + +u16 hpi_profile_get_utilization(const struct hpi_hsubsys *ph_subsys, + u32 h_profile, u32 *putilization); + +/*//////////////////// */ +/* UTILITY functions */ + +u16 hpi_format_create(struct hpi_format *p_format, u16 channels, u16 format, + u32 sample_rate, u32 bit_rate, u32 attributes); + +/* Until it's verified, this function is for Windows OSs only */ + +#endif /*_H_HPI_ */ +/* +/////////////////////////////////////////////////////////////////////////////// +// See CVS for history. Last complete set in rev 1.146 +//////////////////////////////////////////////////////////////////////////////// +*/ diff --git a/sound/pci/asihpi/hpi6000.c b/sound/pci/asihpi/hpi6000.c new file mode 100644 index 00000000000..9c50931731a --- /dev/null +++ b/sound/pci/asihpi/hpi6000.c @@ -0,0 +1,1841 @@ +/****************************************************************************** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Hardware Programming Interface (HPI) for AudioScience ASI6200 series adapters. + These PCI bus adapters are based on the TI C6711 DSP. + + Exported functions: + void HPI_6000(struct hpi_message *phm, struct hpi_response *phr) + + #defines + HIDE_PCI_ASSERTS to show the PCI asserts + PROFILE_DSP2 get profile data from DSP2 if present (instead of DSP 1) + +(C) Copyright AudioScience Inc. 1998-2003 +*******************************************************************************/ +#define SOURCEFILE_NAME "hpi6000.c" + +#include "hpi_internal.h" +#include "hpimsginit.h" +#include "hpidebug.h" +#include "hpi6000.h" +#include "hpidspcd.h" +#include "hpicmn.h" + +#define HPI_HIF_BASE (0x00000200) /* start of C67xx internal RAM */ +#define HPI_HIF_ADDR(member) \ + (HPI_HIF_BASE + offsetof(struct hpi_hif_6000, member)) +#define HPI_HIF_ERROR_MASK 0x4000 + +/* HPI6000 specific error codes */ + +#define HPI6000_ERROR_BASE 900 +#define HPI6000_ERROR_MSG_RESP_IDLE_TIMEOUT 901 +#define HPI6000_ERROR_MSG_RESP_SEND_MSG_ACK 902 +#define HPI6000_ERROR_MSG_RESP_GET_RESP_ACK 903 +#define HPI6000_ERROR_MSG_GET_ADR 904 +#define HPI6000_ERROR_RESP_GET_ADR 905 +#define HPI6000_ERROR_MSG_RESP_BLOCKWRITE32 906 +#define HPI6000_ERROR_MSG_RESP_BLOCKREAD32 907 +#define HPI6000_ERROR_MSG_INVALID_DSP_INDEX 908 +#define HPI6000_ERROR_CONTROL_CACHE_PARAMS 909 + +#define HPI6000_ERROR_SEND_DATA_IDLE_TIMEOUT 911 +#define HPI6000_ERROR_SEND_DATA_ACK 912 +#define HPI6000_ERROR_SEND_DATA_ADR 913 +#define HPI6000_ERROR_SEND_DATA_TIMEOUT 914 +#define HPI6000_ERROR_SEND_DATA_CMD 915 +#define HPI6000_ERROR_SEND_DATA_WRITE 916 +#define HPI6000_ERROR_SEND_DATA_IDLECMD 917 +#define HPI6000_ERROR_SEND_DATA_VERIFY 918 + +#define HPI6000_ERROR_GET_DATA_IDLE_TIMEOUT 921 +#define HPI6000_ERROR_GET_DATA_ACK 922 +#define HPI6000_ERROR_GET_DATA_CMD 923 +#define HPI6000_ERROR_GET_DATA_READ 924 +#define HPI6000_ERROR_GET_DATA_IDLECMD 925 + +#define HPI6000_ERROR_CONTROL_CACHE_ADDRLEN 951 +#define HPI6000_ERROR_CONTROL_CACHE_READ 952 +#define HPI6000_ERROR_CONTROL_CACHE_FLUSH 953 + +#define HPI6000_ERROR_MSG_RESP_GETRESPCMD 961 +#define HPI6000_ERROR_MSG_RESP_IDLECMD 962 +#define HPI6000_ERROR_MSG_RESP_BLOCKVERIFY32 963 + +/* adapter init errors */ +#define HPI6000_ERROR_UNHANDLED_SUBSYS_ID 930 + +/* can't access PCI2040 */ +#define HPI6000_ERROR_INIT_PCI2040 931 +/* can't access DSP HPI i/f */ +#define HPI6000_ERROR_INIT_DSPHPI 932 +/* can't access internal DSP memory */ +#define HPI6000_ERROR_INIT_DSPINTMEM 933 +/* can't access SDRAM - test#1 */ +#define HPI6000_ERROR_INIT_SDRAM1 934 +/* can't access SDRAM - test#2 */ +#define HPI6000_ERROR_INIT_SDRAM2 935 + +#define HPI6000_ERROR_INIT_VERIFY 938 + +#define HPI6000_ERROR_INIT_NOACK 939 + +#define HPI6000_ERROR_INIT_PLDTEST1 941 +#define HPI6000_ERROR_INIT_PLDTEST2 942 + +/* local defines */ + +#define HIDE_PCI_ASSERTS +#define PROFILE_DSP2 + +/* for PCI2040 i/f chip */ +/* HPI CSR registers */ +/* word offsets from CSR base */ +/* use when io addresses defined as u32 * */ + +#define INTERRUPT_EVENT_SET 0 +#define INTERRUPT_EVENT_CLEAR 1 +#define INTERRUPT_MASK_SET 2 +#define INTERRUPT_MASK_CLEAR 3 +#define HPI_ERROR_REPORT 4 +#define HPI_RESET 5 +#define HPI_DATA_WIDTH 6 + +#define MAX_DSPS 2 +/* HPI registers, spaced 8K bytes = 2K words apart */ +#define DSP_SPACING 0x800 + +#define CONTROL 0x0000 +#define ADDRESS 0x0200 +#define DATA_AUTOINC 0x0400 +#define DATA 0x0600 + +#define TIMEOUT 500000 + +struct dsp_obj { + __iomem u32 *prHPI_control; + __iomem u32 *prHPI_address; + __iomem u32 *prHPI_data; + __iomem u32 *prHPI_data_auto_inc; + char c_dsp_rev; /*A, B */ + u32 control_cache_address_on_dsp; + u32 control_cache_length_on_dsp; + struct hpi_adapter_obj *pa_parent_adapter; +}; + +struct hpi_hw_obj { + __iomem u32 *dw2040_HPICSR; + __iomem u32 *dw2040_HPIDSP; + + u16 num_dsp; + struct dsp_obj ado[MAX_DSPS]; + + u32 message_buffer_address_on_dsp; + u32 response_buffer_address_on_dsp; + u32 pCI2040HPI_error_count; + + struct hpi_control_cache_single control_cache[HPI_NMIXER_CONTROLS]; + struct hpi_control_cache *p_cache; +}; + +static u16 hpi6000_dsp_block_write32(struct hpi_adapter_obj *pao, + u16 dsp_index, u32 hpi_address, u32 *source, u32 count); +static u16 hpi6000_dsp_block_read32(struct hpi_adapter_obj *pao, + u16 dsp_index, u32 hpi_address, u32 *dest, u32 count); + +static short hpi6000_adapter_boot_load_dsp(struct hpi_adapter_obj *pao, + u32 *pos_error_code); +static short hpi6000_check_PCI2040_error_flag(struct hpi_adapter_obj *pao, + u16 read_or_write); +#define H6READ 1 +#define H6WRITE 0 + +static short hpi6000_update_control_cache(struct hpi_adapter_obj *pao, + struct hpi_message *phm); +static short hpi6000_message_response_sequence(struct hpi_adapter_obj *pao, + u16 dsp_index, struct hpi_message *phm, struct hpi_response *phr); + +static void hw_message(struct hpi_adapter_obj *pao, struct hpi_message *phm, + struct hpi_response *phr); + +static short hpi6000_wait_dsp_ack(struct hpi_adapter_obj *pao, u16 dsp_index, + u32 ack_value); + +static short hpi6000_send_host_command(struct hpi_adapter_obj *pao, + u16 dsp_index, u32 host_cmd); + +static void hpi6000_send_dsp_interrupt(struct dsp_obj *pdo); + +static short hpi6000_send_data(struct hpi_adapter_obj *pao, u16 dsp_index, + struct hpi_message *phm, struct hpi_response *phr); + +static short hpi6000_get_data(struct hpi_adapter_obj *pao, u16 dsp_index, + struct hpi_message *phm, struct hpi_response *phr); + +static void hpi_write_word(struct dsp_obj *pdo, u32 address, u32 data); + +static u32 hpi_read_word(struct dsp_obj *pdo, u32 address); + +static void hpi_write_block(struct dsp_obj *pdo, u32 address, u32 *pdata, + u32 length); + +static void hpi_read_block(struct dsp_obj *pdo, u32 address, u32 *pdata, + u32 length); + +static void subsys_create_adapter(struct hpi_message *phm, + struct hpi_response *phr); + +static void subsys_delete_adapter(struct hpi_message *phm, + struct hpi_response *phr); + +static void adapter_get_asserts(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); + +static short create_adapter_obj(struct hpi_adapter_obj *pao, + u32 *pos_error_code); + +/* local globals */ + +static u16 gw_pci_read_asserts; /* used to count PCI2040 errors */ +static u16 gw_pci_write_asserts; /* used to count PCI2040 errors */ + +static void subsys_message(struct hpi_message *phm, struct hpi_response *phr) +{ + + switch (phm->function) { + case HPI_SUBSYS_OPEN: + case HPI_SUBSYS_CLOSE: + case HPI_SUBSYS_GET_INFO: + case HPI_SUBSYS_DRIVER_UNLOAD: + case HPI_SUBSYS_DRIVER_LOAD: + case HPI_SUBSYS_FIND_ADAPTERS: + /* messages that should not get here */ + phr->error = HPI_ERROR_UNIMPLEMENTED; + break; + case HPI_SUBSYS_CREATE_ADAPTER: + subsys_create_adapter(phm, phr); + break; + case HPI_SUBSYS_DELETE_ADAPTER: + subsys_delete_adapter(phm, phr); + break; + default: + phr->error = HPI_ERROR_INVALID_FUNC; + break; + } +} + +static void control_message(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + + switch (phm->function) { + case HPI_CONTROL_GET_STATE: + if (pao->has_control_cache) { + u16 err; + err = hpi6000_update_control_cache(pao, phm); + + if (err) { + phr->error = err; + break; + } + + if (hpi_check_control_cache(((struct hpi_hw_obj *) + pao->priv)->p_cache, phm, + phr)) + break; + } + hw_message(pao, phm, phr); + break; + case HPI_CONTROL_GET_INFO: + hw_message(pao, phm, phr); + break; + case HPI_CONTROL_SET_STATE: + hw_message(pao, phm, phr); + hpi_sync_control_cache(((struct hpi_hw_obj *)pao->priv)-> + p_cache, phm, phr); + break; + default: + phr->error = HPI_ERROR_INVALID_FUNC; + break; + } +} + +static void adapter_message(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + switch (phm->function) { + case HPI_ADAPTER_GET_INFO: + hw_message(pao, phm, phr); + break; + case HPI_ADAPTER_GET_ASSERT: + adapter_get_asserts(pao, phm, phr); + break; + case HPI_ADAPTER_OPEN: + case HPI_ADAPTER_CLOSE: + case HPI_ADAPTER_TEST_ASSERT: + case HPI_ADAPTER_SELFTEST: + case HPI_ADAPTER_GET_MODE: + case HPI_ADAPTER_SET_MODE: + case HPI_ADAPTER_FIND_OBJECT: + case HPI_ADAPTER_GET_PROPERTY: + case HPI_ADAPTER_SET_PROPERTY: + case HPI_ADAPTER_ENUM_PROPERTY: + hw_message(pao, phm, phr); + break; + default: + phr->error = HPI_ERROR_INVALID_FUNC; + break; + } +} + +static void outstream_message(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + switch (phm->function) { + case HPI_OSTREAM_HOSTBUFFER_ALLOC: + case HPI_OSTREAM_HOSTBUFFER_FREE: + /* Don't let these messages go to the HW function because + * they're called without allocating the spinlock. + * For the HPI6000 adapters the HW would return + * HPI_ERROR_INVALID_FUNC anyway. + */ + phr->error = HPI_ERROR_INVALID_FUNC; + break; + default: + hw_message(pao, phm, phr); + return; + } +} + +static void instream_message(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + + switch (phm->function) { + case HPI_ISTREAM_HOSTBUFFER_ALLOC: + case HPI_ISTREAM_HOSTBUFFER_FREE: + /* Don't let these messages go to the HW function because + * they're called without allocating the spinlock. + * For the HPI6000 adapters the HW would return + * HPI_ERROR_INVALID_FUNC anyway. + */ + phr->error = HPI_ERROR_INVALID_FUNC; + break; + default: + hw_message(pao, phm, phr); + return; + } +} + +/************************************************************************/ +/** HPI_6000() + * Entry point from HPIMAN + * All calls to the HPI start here + */ +void HPI_6000(struct hpi_message *phm, struct hpi_response *phr) +{ + struct hpi_adapter_obj *pao = NULL; + + /* subsytem messages get executed by every HPI. */ + /* All other messages are ignored unless the adapter index matches */ + /* an adapter in the HPI */ + HPI_DEBUG_LOG(DEBUG, "O %d,F %x\n", phm->object, phm->function); + + /* if Dsp has crashed then do not communicate with it any more */ + if (phm->object != HPI_OBJ_SUBSYSTEM) { + pao = hpi_find_adapter(phm->adapter_index); + if (!pao) { + HPI_DEBUG_LOG(DEBUG, + " %d,%d refused, for another HPI?\n", + phm->object, phm->function); + return; + } + + if (pao->dsp_crashed >= 10) { + hpi_init_response(phr, phm->object, phm->function, + HPI_ERROR_DSP_HARDWARE); + HPI_DEBUG_LOG(DEBUG, " %d,%d dsp crashed.\n", + phm->object, phm->function); + return; + } + } + /* Init default response including the size field */ + if (phm->function != HPI_SUBSYS_CREATE_ADAPTER) + hpi_init_response(phr, phm->object, phm->function, + HPI_ERROR_PROCESSING_MESSAGE); + + switch (phm->type) { + case HPI_TYPE_MESSAGE: + switch (phm->object) { + case HPI_OBJ_SUBSYSTEM: + subsys_message(phm, phr); + break; + + case HPI_OBJ_ADAPTER: + phr->size = + sizeof(struct hpi_response_header) + + sizeof(struct hpi_adapter_res); + adapter_message(pao, phm, phr); + break; + + case HPI_OBJ_CONTROL: + control_message(pao, phm, phr); + break; + + case HPI_OBJ_OSTREAM: + outstream_message(pao, phm, phr); + break; + + case HPI_OBJ_ISTREAM: + instream_message(pao, phm, phr); + break; + + default: + hw_message(pao, phm, phr); + break; + } + break; + + default: + phr->error = HPI_ERROR_INVALID_TYPE; + break; + } +} + +/************************************************************************/ +/* SUBSYSTEM */ + +/* create an adapter object and initialise it based on resource information + * passed in in the message + * NOTE - you cannot use this function AND the FindAdapters function at the + * same time, the application must use only one of them to get the adapters + */ +static void subsys_create_adapter(struct hpi_message *phm, + struct hpi_response *phr) +{ + /* create temp adapter obj, because we don't know what index yet */ + struct hpi_adapter_obj ao; + struct hpi_adapter_obj *pao; + u32 os_error_code; + short error = 0; + u32 dsp_index = 0; + + HPI_DEBUG_LOG(VERBOSE, "subsys_create_adapter\n"); + + memset(&ao, 0, sizeof(ao)); + + /* this HPI only creates adapters for TI/PCI2040 based devices */ + if (phm->u.s.resource.bus_type != HPI_BUS_PCI) + return; + if (phm->u.s.resource.r.pci->vendor_id != HPI_PCI_VENDOR_ID_TI) + return; + if (phm->u.s.resource.r.pci->device_id != HPI_PCI_DEV_ID_PCI2040) + return; + + ao.priv = kmalloc(sizeof(struct hpi_hw_obj), GFP_KERNEL); + if (!ao.priv) { + HPI_DEBUG_LOG(ERROR, "cant get mem for adapter object\n"); + phr->error = HPI_ERROR_MEMORY_ALLOC; + return; + } + + memset(ao.priv, 0, sizeof(struct hpi_hw_obj)); + /* create the adapter object based on the resource information */ + /*? memcpy(&ao.Pci,&phm->u.s.Resource.r.Pci,sizeof(ao.Pci)); */ + ao.pci = *phm->u.s.resource.r.pci; + + error = create_adapter_obj(&ao, &os_error_code); + if (!error) + error = hpi_add_adapter(&ao); + if (error) { + phr->u.s.data = os_error_code; + kfree(ao.priv); + phr->error = error; + return; + } + /* need to update paParentAdapter */ + pao = hpi_find_adapter(ao.index); + if (!pao) { + /* We just added this adapter, why can't we find it!? */ + HPI_DEBUG_LOG(ERROR, "lost adapter after boot\n"); + phr->error = 950; + return; + } + + for (dsp_index = 0; dsp_index < MAX_DSPS; dsp_index++) { + struct hpi_hw_obj *phw = (struct hpi_hw_obj *)pao->priv; + phw->ado[dsp_index].pa_parent_adapter = pao; + } + + phr->u.s.aw_adapter_list[ao.index] = ao.adapter_type; + phr->u.s.adapter_index = ao.index; + phr->u.s.num_adapters++; + phr->error = 0; +} + +static void subsys_delete_adapter(struct hpi_message *phm, + struct hpi_response *phr) +{ + struct hpi_adapter_obj *pao = NULL; + struct hpi_hw_obj *phw; + + pao = hpi_find_adapter(phm->adapter_index); + if (!pao) + return; + + phw = (struct hpi_hw_obj *)pao->priv; + + if (pao->has_control_cache) + hpi_free_control_cache(phw->p_cache); + + hpi_delete_adapter(pao); + kfree(phw); + + phr->error = 0; +} + +/* this routine is called from SubSysFindAdapter and SubSysCreateAdapter */ +static short create_adapter_obj(struct hpi_adapter_obj *pao, + u32 *pos_error_code) +{ + short boot_error = 0; + u32 dsp_index = 0; + u32 control_cache_size = 0; + u32 control_cache_count = 0; + struct hpi_hw_obj *phw = (struct hpi_hw_obj *)pao->priv; + + /* init error reporting */ + pao->dsp_crashed = 0; + + /* The PCI2040 has the following address map */ + /* BAR0 - 4K = HPI control and status registers on PCI2040 (HPI CSR) */ + /* BAR1 - 32K = HPI registers on DSP */ + phw->dw2040_HPICSR = pao->pci.ap_mem_base[0]; + phw->dw2040_HPIDSP = pao->pci.ap_mem_base[1]; + HPI_DEBUG_LOG(VERBOSE, "csr %p, dsp %p\n", phw->dw2040_HPICSR, + phw->dw2040_HPIDSP); + + /* set addresses for the possible DSP HPI interfaces */ + for (dsp_index = 0; dsp_index < MAX_DSPS; dsp_index++) { + phw->ado[dsp_index].prHPI_control = + phw->dw2040_HPIDSP + (CONTROL + + DSP_SPACING * dsp_index); + + phw->ado[dsp_index].prHPI_address = + phw->dw2040_HPIDSP + (ADDRESS + + DSP_SPACING * dsp_index); + phw->ado[dsp_index].prHPI_data = + phw->dw2040_HPIDSP + (DATA + DSP_SPACING * dsp_index); + + phw->ado[dsp_index].prHPI_data_auto_inc = + phw->dw2040_HPIDSP + (DATA_AUTOINC + + DSP_SPACING * dsp_index); + + HPI_DEBUG_LOG(VERBOSE, "ctl %p, adr %p, dat %p, dat++ %p\n", + phw->ado[dsp_index].prHPI_control, + phw->ado[dsp_index].prHPI_address, + phw->ado[dsp_index].prHPI_data, + phw->ado[dsp_index].prHPI_data_auto_inc); + + phw->ado[dsp_index].pa_parent_adapter = pao; + } + + phw->pCI2040HPI_error_count = 0; + pao->has_control_cache = 0; + + /* Set the default number of DSPs on this card */ + /* This is (conditionally) adjusted after bootloading */ + /* of the first DSP in the bootload section. */ + phw->num_dsp = 1; + + boot_error = hpi6000_adapter_boot_load_dsp(pao, pos_error_code); + if (boot_error) + return boot_error; + + HPI_DEBUG_LOG(INFO, "bootload DSP OK\n"); + + phw->message_buffer_address_on_dsp = 0L; + phw->response_buffer_address_on_dsp = 0L; + + /* get info about the adapter by asking the adapter */ + /* send a HPI_ADAPTER_GET_INFO message */ + { + struct hpi_message hM; + struct hpi_response hR0; /* response from DSP 0 */ + struct hpi_response hR1; /* response from DSP 1 */ + u16 error = 0; + + HPI_DEBUG_LOG(VERBOSE, "send ADAPTER_GET_INFO\n"); + memset(&hM, 0, sizeof(hM)); + hM.type = HPI_TYPE_MESSAGE; + hM.size = sizeof(struct hpi_message); + hM.object = HPI_OBJ_ADAPTER; + hM.function = HPI_ADAPTER_GET_INFO; + hM.adapter_index = 0; + memset(&hR0, 0, sizeof(hR0)); + memset(&hR1, 0, sizeof(hR1)); + hR0.size = sizeof(hR0); + hR1.size = sizeof(hR1); + + error = hpi6000_message_response_sequence(pao, 0, &hM, &hR0); + if (hR0.error) { + HPI_DEBUG_LOG(DEBUG, "message error %d\n", hR0.error); + return hR0.error; + } + if (phw->num_dsp == 2) { + error = hpi6000_message_response_sequence(pao, 1, &hM, + &hR1); + if (error) + return error; + } + pao->adapter_type = hR0.u.a.adapter_type; + pao->index = hR0.u.a.adapter_index; + } + + memset(&phw->control_cache[0], 0, + sizeof(struct hpi_control_cache_single) * + HPI_NMIXER_CONTROLS); + /* Read the control cache length to figure out if it is turned on */ + control_cache_size = + hpi_read_word(&phw->ado[0], + HPI_HIF_ADDR(control_cache_size_in_bytes)); + if (control_cache_size) { + control_cache_count = + hpi_read_word(&phw->ado[0], + HPI_HIF_ADDR(control_cache_count)); + pao->has_control_cache = 1; + + phw->p_cache = + hpi_alloc_control_cache(control_cache_count, + control_cache_size, (struct hpi_control_cache_info *) + &phw->control_cache[0] + ); + } else + pao->has_control_cache = 0; + + HPI_DEBUG_LOG(DEBUG, "get adapter info ASI%04X index %d\n", + pao->adapter_type, pao->index); + pao->open = 0; /* upon creation the adapter is closed */ + return 0; +} + +/************************************************************************/ +/* ADAPTER */ + +static void adapter_get_asserts(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ +#ifndef HIDE_PCI_ASSERTS + /* if we have PCI2040 asserts then collect them */ + if ((gw_pci_read_asserts > 0) || (gw_pci_write_asserts > 0)) { + phr->u.a.serial_number = + gw_pci_read_asserts * 100 + gw_pci_write_asserts; + phr->u.a.adapter_index = 1; /* assert count */ + phr->u.a.adapter_type = -1; /* "dsp index" */ + strcpy(phr->u.a.sz_adapter_assert, "PCI2040 error"); + gw_pci_read_asserts = 0; + gw_pci_write_asserts = 0; + phr->error = 0; + } else +#endif + hw_message(pao, phm, phr); /*get DSP asserts */ + + return; +} + +/************************************************************************/ +/* LOW-LEVEL */ + +static short hpi6000_adapter_boot_load_dsp(struct hpi_adapter_obj *pao, + u32 *pos_error_code) +{ + struct hpi_hw_obj *phw = (struct hpi_hw_obj *)pao->priv; + short error; + u32 timeout; + u32 read = 0; + u32 i = 0; + u32 data = 0; + u32 j = 0; + u32 test_addr = 0x80000000; + u32 test_data = 0x00000001; + u32 dw2040_reset = 0; + u32 dsp_index = 0; + u32 endian = 0; + u32 adapter_info = 0; + u32 delay = 0; + + struct dsp_code dsp_code; + u16 boot_load_family = 0; + + /* NOTE don't use wAdapterType in this routine. It is not setup yet */ + + switch (pao->pci.subsys_device_id) { + case 0x5100: + case 0x5110: /* ASI5100 revB or higher with C6711D */ + case 0x6100: + case 0x6200: + boot_load_family = HPI_ADAPTER_FAMILY_ASI(0x6200); + break; + case 0x8800: + boot_load_family = HPI_ADAPTER_FAMILY_ASI(0x8800); + break; + default: + return HPI6000_ERROR_UNHANDLED_SUBSYS_ID; + } + + /* reset all DSPs, indicate two DSPs are present + * set RST3-=1 to disconnect HAD8 to set DSP in little endian mode + */ + endian = 0; + dw2040_reset = 0x0003000F; + iowrite32(dw2040_reset, phw->dw2040_HPICSR + HPI_RESET); + + /* read back register to make sure PCI2040 chip is functioning + * note that bits 4..15 are read-only and so should always return zero, + * even though we wrote 1 to them + */ + for (i = 0; i < 1000; i++) + delay = ioread32(phw->dw2040_HPICSR + HPI_RESET); + if (delay != dw2040_reset) { + HPI_DEBUG_LOG(ERROR, "INIT_PCI2040 %x %x\n", dw2040_reset, + delay); + return HPI6000_ERROR_INIT_PCI2040; + } + + /* Indicate that DSP#0,1 is a C6X */ + iowrite32(0x00000003, phw->dw2040_HPICSR + HPI_DATA_WIDTH); + /* set Bit30 and 29 - which will prevent Target aborts from being + * issued upon HPI or GP error + */ + iowrite32(0x60000000, phw->dw2040_HPICSR + INTERRUPT_MASK_SET); + + /* isolate DSP HAD8 line from PCI2040 so that + * Little endian can be set by pullup + */ + dw2040_reset = dw2040_reset & (~(endian << 3)); + iowrite32(dw2040_reset, phw->dw2040_HPICSR + HPI_RESET); + + phw->ado[0].c_dsp_rev = 'B'; /* revB */ + phw->ado[1].c_dsp_rev = 'B'; /* revB */ + + /*Take both DSPs out of reset, setting HAD8 to the correct Endian */ + dw2040_reset = dw2040_reset & (~0x00000001); /* start DSP 0 */ + iowrite32(dw2040_reset, phw->dw2040_HPICSR + HPI_RESET); + dw2040_reset = dw2040_reset & (~0x00000002); /* start DSP 1 */ + iowrite32(dw2040_reset, phw->dw2040_HPICSR + HPI_RESET); + + /* set HAD8 back to PCI2040, now that DSP set to little endian mode */ + dw2040_reset = dw2040_reset & (~0x00000008); + iowrite32(dw2040_reset, phw->dw2040_HPICSR + HPI_RESET); + /*delay to allow DSP to get going */ + for (i = 0; i < 100; i++) + delay = ioread32(phw->dw2040_HPICSR + HPI_RESET); + + /* loop through all DSPs, downloading DSP code */ + for (dsp_index = 0; dsp_index < phw->num_dsp; dsp_index++) { + struct dsp_obj *pdo = &phw->ado[dsp_index]; + + /* configure DSP so that we download code into the SRAM */ + /* set control reg for little endian, HWOB=1 */ + iowrite32(0x00010001, pdo->prHPI_control); + + /* test access to the HPI address register (HPIA) */ + test_data = 0x00000001; + for (j = 0; j < 32; j++) { + iowrite32(test_data, pdo->prHPI_address); + data = ioread32(pdo->prHPI_address); + if (data != test_data) { + HPI_DEBUG_LOG(ERROR, "INIT_DSPHPI %x %x %x\n", + test_data, data, dsp_index); + return HPI6000_ERROR_INIT_DSPHPI; + } + test_data = test_data << 1; + } + +/* if C6713 the setup PLL to generate 225MHz from 25MHz. +* Since the PLLDIV1 read is sometimes wrong, even on a C6713, +* we're going to do this unconditionally +*/ +/* PLLDIV1 should have a value of 8000 after reset */ +/* + if (HpiReadWord(pdo,0x01B7C118) == 0x8000) +*/ + { + /* C6713 datasheet says we cannot program PLL from HPI, + * and indeed if we try to set the PLL multiply from the + * HPI, the PLL does not seem to lock, + * so we enable the PLL and use the default of x 7 + */ + /* bypass PLL */ + hpi_write_word(pdo, 0x01B7C100, 0x0000); + for (i = 0; i < 100; i++) + delay = ioread32(phw->dw2040_HPICSR + + HPI_RESET); + + /* ** use default of PLL x7 ** */ + /* EMIF = 225/3=75MHz */ + hpi_write_word(pdo, 0x01B7C120, 0x8002); + /* peri = 225/2 */ + hpi_write_word(pdo, 0x01B7C11C, 0x8001); + /* cpu = 225/1 */ + hpi_write_word(pdo, 0x01B7C118, 0x8000); + /* ~200us delay */ + for (i = 0; i < 2000; i++) + delay = ioread32(phw->dw2040_HPICSR + + HPI_RESET); + /* PLL not bypassed */ + hpi_write_word(pdo, 0x01B7C100, 0x0001); + /* ~200us delay */ + for (i = 0; i < 2000; i++) + delay = ioread32(phw->dw2040_HPICSR + + HPI_RESET); + } + + /* test r/w to internal DSP memory + * C6711 has L2 cache mapped to 0x0 when reset + * + * revB - because of bug 3.0.1 last HPI read + * (before HPI address issued) must be non-autoinc + */ + /* test each bit in the 32bit word */ + for (i = 0; i < 100; i++) { + test_addr = 0x00000000; + test_data = 0x00000001; + for (j = 0; j < 32; j++) { + hpi_write_word(pdo, test_addr + i, test_data); + data = hpi_read_word(pdo, test_addr + i); + if (data != test_data) { + HPI_DEBUG_LOG(ERROR, + "DSP mem %x %x %x %x\n", + test_addr + i, test_data, + data, dsp_index); + + return HPI6000_ERROR_INIT_DSPINTMEM; + } + test_data = test_data << 1; + } + } + + /* memory map of ASI6200 + 00000000-0000FFFF 16Kx32 internal program + 01800000-019FFFFF Internal peripheral + 80000000-807FFFFF CE0 2Mx32 SDRAM running @ 100MHz + 90000000-9000FFFF CE1 Async peripherals: + + EMIF config + ------------ + Global EMIF control + 0 - + 1 - + 2 - + 3 CLK2EN = 1 CLKOUT2 enabled + 4 CLK1EN = 0 CLKOUT1 disabled + 5 EKEN = 1 <--!! C6713 specific, enables ECLKOUT + 6 - + 7 NOHOLD = 1 external HOLD disabled + 8 HOLDA = 0 HOLDA output is low + 9 HOLD = 0 HOLD input is low + 10 ARDY = 1 ARDY input is high + 11 BUSREQ = 0 BUSREQ output is low + 12,13 Reserved = 1 + */ + hpi_write_word(pdo, 0x01800000, 0x34A8); + + /* EMIF CE0 setup - 2Mx32 Sync DRAM + 31..28 Wr setup + 27..22 Wr strobe + 21..20 Wr hold + 19..16 Rd setup + 15..14 - + 13..8 Rd strobe + 7..4 MTYPE 0011 Sync DRAM 32bits + 3 Wr hold MSB + 2..0 Rd hold + */ + hpi_write_word(pdo, 0x01800008, 0x00000030); + + /* EMIF SDRAM Extension + 31-21 0 + 20 WR2RD = 0 + 19-18 WR2DEAC = 1 + 17 WR2WR = 0 + 16-15 R2WDQM = 2 + 14-12 RD2WR = 4 + 11-10 RD2DEAC = 1 + 9 RD2RD = 1 + 8-7 THZP = 10b + 6-5 TWR = 2-1 = 01b (tWR = 10ns) + 4 TRRD = 0b = 2 ECLK (tRRD = 14ns) + 3-1 TRAS = 5-1 = 100b (Tras=42ns = 5 ECLK) + 1 CAS latency = 3 ECLK + (for Micron 2M32-7 operating at 100Mhz) + */ + + /* need to use this else DSP code crashes */ + hpi_write_word(pdo, 0x01800020, 0x001BDF29); + + /* EMIF SDRAM control - set up for a 2Mx32 SDRAM (512x32x4 bank) + 31 - - + 30 SDBSZ 1 4 bank + 29..28 SDRSZ 00 11 row address pins + 27..26 SDCSZ 01 8 column address pins + 25 RFEN 1 refersh enabled + 24 INIT 1 init SDRAM + 23..20 TRCD 0001 + 19..16 TRP 0001 + 15..12 TRC 0110 + 11..0 - - + */ + /* need to use this else DSP code crashes */ + hpi_write_word(pdo, 0x01800018, 0x47117000); + + /* EMIF SDRAM Refresh Timing */ + hpi_write_word(pdo, 0x0180001C, 0x00000410); + + /*MIF CE1 setup - Async peripherals + @100MHz bus speed, each cycle is 10ns, + 31..28 Wr setup = 1 + 27..22 Wr strobe = 3 30ns + 21..20 Wr hold = 1 + 19..16 Rd setup =1 + 15..14 Ta = 2 + 13..8 Rd strobe = 3 30ns + 7..4 MTYPE 0010 Async 32bits + 3 Wr hold MSB =0 + 2..0 Rd hold = 1 + */ + { + u32 cE1 = + (1L << 28) | (3L << 22) | (1L << 20) | (1L << + 16) | (2L << 14) | (3L << 8) | (2L << 4) | 1L; + hpi_write_word(pdo, 0x01800004, cE1); + } + + /* delay a little to allow SDRAM and DSP to "get going" */ + + for (i = 0; i < 1000; i++) + delay = ioread32(phw->dw2040_HPICSR + HPI_RESET); + + /* test access to SDRAM */ + { + test_addr = 0x80000000; + test_data = 0x00000001; + /* test each bit in the 32bit word */ + for (j = 0; j < 32; j++) { + hpi_write_word(pdo, test_addr, test_data); + data = hpi_read_word(pdo, test_addr); + if (data != test_data) { + HPI_DEBUG_LOG(ERROR, + "DSP dram %x %x %x %x\n", + test_addr, test_data, data, + dsp_index); + + return HPI6000_ERROR_INIT_SDRAM1; + } + test_data = test_data << 1; + } + /* test every Nth address in the DRAM */ +#define DRAM_SIZE_WORDS 0x200000 /*2_mx32 */ +#define DRAM_INC 1024 + test_addr = 0x80000000; + test_data = 0x0; + for (i = 0; i < DRAM_SIZE_WORDS; i = i + DRAM_INC) { + hpi_write_word(pdo, test_addr + i, test_data); + test_data++; + } + test_addr = 0x80000000; + test_data = 0x0; + for (i = 0; i < DRAM_SIZE_WORDS; i = i + DRAM_INC) { + data = hpi_read_word(pdo, test_addr + i); + if (data != test_data) { + HPI_DEBUG_LOG(ERROR, + "DSP dram %x %x %x %x\n", + test_addr + i, test_data, + data, dsp_index); + return HPI6000_ERROR_INIT_SDRAM2; + } + test_data++; + } + + } + + /* write the DSP code down into the DSPs memory */ + /*HpiDspCode_Open(nBootLoadFamily,&DspCode,pdwOsErrorCode); */ + dsp_code.ps_dev = pao->pci.p_os_data; + + error = hpi_dsp_code_open(boot_load_family, &dsp_code, + pos_error_code); + + if (error) + return error; + + while (1) { + u32 length; + u32 address; + u32 type; + u32 *pcode; + + error = hpi_dsp_code_read_word(&dsp_code, &length); + if (error) + break; + if (length == 0xFFFFFFFF) + break; /* end of code */ + + error = hpi_dsp_code_read_word(&dsp_code, &address); + if (error) + break; + error = hpi_dsp_code_read_word(&dsp_code, &type); + if (error) + break; + error = hpi_dsp_code_read_block(length, &dsp_code, + &pcode); + if (error) + break; + error = hpi6000_dsp_block_write32(pao, (u16)dsp_index, + address, pcode, length); + if (error) + break; + } + + if (error) { + hpi_dsp_code_close(&dsp_code); + return error; + } + /* verify that code was written correctly */ + /* this time through, assume no errors in DSP code file/array */ + hpi_dsp_code_rewind(&dsp_code); + while (1) { + u32 length; + u32 address; + u32 type; + u32 *pcode; + + hpi_dsp_code_read_word(&dsp_code, &length); + if (length == 0xFFFFFFFF) + break; /* end of code */ + + hpi_dsp_code_read_word(&dsp_code, &address); + hpi_dsp_code_read_word(&dsp_code, &type); + hpi_dsp_code_read_block(length, &dsp_code, &pcode); + + for (i = 0; i < length; i++) { + data = hpi_read_word(pdo, address); + if (data != *pcode) { + error = HPI6000_ERROR_INIT_VERIFY; + HPI_DEBUG_LOG(ERROR, + "DSP verify %x %x %x %x\n", + address, *pcode, data, + dsp_index); + break; + } + pcode++; + address += 4; + } + if (error) + break; + } + hpi_dsp_code_close(&dsp_code); + if (error) + return error; + + /* zero out the hostmailbox */ + { + u32 address = HPI_HIF_ADDR(host_cmd); + for (i = 0; i < 4; i++) { + hpi_write_word(pdo, address, 0); + address += 4; + } + } + /* write the DSP number into the hostmailbox */ + /* structure before starting the DSP */ + hpi_write_word(pdo, HPI_HIF_ADDR(dsp_number), dsp_index); + + /* write the DSP adapter Info into the */ + /* hostmailbox before starting the DSP */ + if (dsp_index > 0) + hpi_write_word(pdo, HPI_HIF_ADDR(adapter_info), + adapter_info); + + /* step 3. Start code by sending interrupt */ + iowrite32(0x00030003, pdo->prHPI_control); + for (i = 0; i < 10000; i++) + delay = ioread32(phw->dw2040_HPICSR + HPI_RESET); + + /* wait for a non-zero value in hostcmd - + * indicating initialization is complete + * + * Init could take a while if DSP checks SDRAM memory + * Was 200000. Increased to 2000000 for ASI8801 so we + * don't get 938 errors. + */ + timeout = 2000000; + while (timeout) { + do { + read = hpi_read_word(pdo, + HPI_HIF_ADDR(host_cmd)); + } while (--timeout + && hpi6000_check_PCI2040_error_flag(pao, + H6READ)); + + if (read) + break; + /* The following is a workaround for bug #94: + * Bluescreen on install and subsequent boots on a + * DELL PowerEdge 600SC PC with 1.8GHz P4 and + * ServerWorks chipset. Without this delay the system + * locks up with a bluescreen (NOT GPF or pagefault). + */ + else + hpios_delay_micro_seconds(1000); + } + if (timeout == 0) + return HPI6000_ERROR_INIT_NOACK; + + /* read the DSP adapter Info from the */ + /* hostmailbox structure after starting the DSP */ + if (dsp_index == 0) { + /*u32 dwTestData=0; */ + u32 mask = 0; + + adapter_info = + hpi_read_word(pdo, + HPI_HIF_ADDR(adapter_info)); + if (HPI_ADAPTER_FAMILY_ASI + (HPI_HIF_ADAPTER_INFO_EXTRACT_ADAPTER + (adapter_info)) == + HPI_ADAPTER_FAMILY_ASI(0x6200)) + /* all 6200 cards have this many DSPs */ + phw->num_dsp = 2; + + /* test that the PLD is programmed */ + /* and we can read/write 24bits */ +#define PLD_BASE_ADDRESS 0x90000000L /*for ASI6100/6200/8800 */ + + switch (boot_load_family) { + case HPI_ADAPTER_FAMILY_ASI(0x6200): + /* ASI6100/6200 has 24bit path to FPGA */ + mask = 0xFFFFFF00L; + /* ASI5100 uses AX6 code, */ + /* but has no PLD r/w register to test */ + if (HPI_ADAPTER_FAMILY_ASI(pao->pci. + subsys_device_id) == + HPI_ADAPTER_FAMILY_ASI(0x5100)) + mask = 0x00000000L; + break; + case HPI_ADAPTER_FAMILY_ASI(0x8800): + /* ASI8800 has 16bit path to FPGA */ + mask = 0xFFFF0000L; + break; + } + test_data = 0xAAAAAA00L & mask; + /* write to 24 bit Debug register (D31-D8) */ + hpi_write_word(pdo, PLD_BASE_ADDRESS + 4L, test_data); + read = hpi_read_word(pdo, + PLD_BASE_ADDRESS + 4L) & mask; + if (read != test_data) { + HPI_DEBUG_LOG(ERROR, "PLD %x %x\n", test_data, + read); + return HPI6000_ERROR_INIT_PLDTEST1; + } + test_data = 0x55555500L & mask; + hpi_write_word(pdo, PLD_BASE_ADDRESS + 4L, test_data); + read = hpi_read_word(pdo, + PLD_BASE_ADDRESS + 4L) & mask; + if (read != test_data) { + HPI_DEBUG_LOG(ERROR, "PLD %x %x\n", test_data, + read); + return HPI6000_ERROR_INIT_PLDTEST2; + } + } + } /* for numDSP */ + return 0; +} + +#define PCI_TIMEOUT 100 + +static int hpi_set_address(struct dsp_obj *pdo, u32 address) +{ + u32 timeout = PCI_TIMEOUT; + + do { + iowrite32(address, pdo->prHPI_address); + } while (hpi6000_check_PCI2040_error_flag(pdo->pa_parent_adapter, + H6WRITE) + && --timeout); + + if (timeout) + return 0; + + return 1; +} + +/* write one word to the HPI port */ +static void hpi_write_word(struct dsp_obj *pdo, u32 address, u32 data) +{ + if (hpi_set_address(pdo, address)) + return; + iowrite32(data, pdo->prHPI_data); +} + +/* read one word from the HPI port */ +static u32 hpi_read_word(struct dsp_obj *pdo, u32 address) +{ + u32 data = 0; + + if (hpi_set_address(pdo, address)) + return 0; /*? no way to return error */ + + /* take care of errata in revB DSP (2.0.1) */ + data = ioread32(pdo->prHPI_data); + return data; +} + +/* write a block of 32bit words to the DSP HPI port using auto-inc mode */ +static void hpi_write_block(struct dsp_obj *pdo, u32 address, u32 *pdata, + u32 length) +{ + u16 length16 = length - 1; + + if (length == 0) + return; + + if (hpi_set_address(pdo, address)) + return; + + iowrite32_rep(pdo->prHPI_data_auto_inc, pdata, length16); + + /* take care of errata in revB DSP (2.0.1) */ + /* must end with non auto-inc */ + iowrite32(*(pdata + length - 1), pdo->prHPI_data); +} + +/** read a block of 32bit words from the DSP HPI port using auto-inc mode + */ +static void hpi_read_block(struct dsp_obj *pdo, u32 address, u32 *pdata, + u32 length) +{ + u16 length16 = length - 1; + + if (length == 0) + return; + + if (hpi_set_address(pdo, address)) + return; + + ioread32_rep(pdo->prHPI_data_auto_inc, pdata, length16); + + /* take care of errata in revB DSP (2.0.1) */ + /* must end with non auto-inc */ + *(pdata + length - 1) = ioread32(pdo->prHPI_data); +} + +static u16 hpi6000_dsp_block_write32(struct hpi_adapter_obj *pao, + u16 dsp_index, u32 hpi_address, u32 *source, u32 count) +{ + struct dsp_obj *pdo = + &(*(struct hpi_hw_obj *)pao->priv).ado[dsp_index]; + u32 time_out = PCI_TIMEOUT; + int c6711_burst_size = 128; + u32 local_hpi_address = hpi_address; + int local_count = count; + int xfer_size; + u32 *pdata = source; + + while (local_count) { + if (local_count > c6711_burst_size) + xfer_size = c6711_burst_size; + else + xfer_size = local_count; + + time_out = PCI_TIMEOUT; + do { + hpi_write_block(pdo, local_hpi_address, pdata, + xfer_size); + } while (hpi6000_check_PCI2040_error_flag(pao, H6WRITE) + && --time_out); + + if (!time_out) + break; + pdata += xfer_size; + local_hpi_address += sizeof(u32) * xfer_size; + local_count -= xfer_size; + } + + if (time_out) + return 0; + else + return 1; +} + +static u16 hpi6000_dsp_block_read32(struct hpi_adapter_obj *pao, + u16 dsp_index, u32 hpi_address, u32 *dest, u32 count) +{ + struct dsp_obj *pdo = + &(*(struct hpi_hw_obj *)pao->priv).ado[dsp_index]; + u32 time_out = PCI_TIMEOUT; + int c6711_burst_size = 16; + u32 local_hpi_address = hpi_address; + int local_count = count; + int xfer_size; + u32 *pdata = dest; + u32 loop_count = 0; + + while (local_count) { + if (local_count > c6711_burst_size) + xfer_size = c6711_burst_size; + else + xfer_size = local_count; + + time_out = PCI_TIMEOUT; + do { + hpi_read_block(pdo, local_hpi_address, pdata, + xfer_size); + } while (hpi6000_check_PCI2040_error_flag(pao, H6READ) + && --time_out); + if (!time_out) + break; + + pdata += xfer_size; + local_hpi_address += sizeof(u32) * xfer_size; + local_count -= xfer_size; + loop_count++; + } + + if (time_out) + return 0; + else + return 1; +} + +static short hpi6000_message_response_sequence(struct hpi_adapter_obj *pao, + u16 dsp_index, struct hpi_message *phm, struct hpi_response *phr) +{ + struct hpi_hw_obj *phw = (struct hpi_hw_obj *)pao->priv; + struct dsp_obj *pdo = &phw->ado[dsp_index]; + u32 timeout; + u16 ack; + u32 address; + u32 length; + u32 *p_data; + u16 error = 0; + + /* does the DSP we are referencing exist? */ + if (dsp_index >= phw->num_dsp) + return HPI6000_ERROR_MSG_INVALID_DSP_INDEX; + + ack = hpi6000_wait_dsp_ack(pao, dsp_index, HPI_HIF_IDLE); + if (ack & HPI_HIF_ERROR_MASK) { + pao->dsp_crashed++; + return HPI6000_ERROR_MSG_RESP_IDLE_TIMEOUT; + } + pao->dsp_crashed = 0; + + /* send the message */ + + /* get the address and size */ + if (phw->message_buffer_address_on_dsp == 0) { + timeout = TIMEOUT; + do { + address = + hpi_read_word(pdo, + HPI_HIF_ADDR(message_buffer_address)); + phw->message_buffer_address_on_dsp = address; + } while (hpi6000_check_PCI2040_error_flag(pao, H6READ) + && --timeout); + if (!timeout) + return HPI6000_ERROR_MSG_GET_ADR; + } else + address = phw->message_buffer_address_on_dsp; + + /* dwLength = sizeof(struct hpi_message); */ + length = phm->size; + + /* send it */ + p_data = (u32 *)phm; + if (hpi6000_dsp_block_write32(pao, dsp_index, address, p_data, + (u16)length / 4)) + return HPI6000_ERROR_MSG_RESP_BLOCKWRITE32; + + if (hpi6000_send_host_command(pao, dsp_index, HPI_HIF_GET_RESP)) + return HPI6000_ERROR_MSG_RESP_GETRESPCMD; + hpi6000_send_dsp_interrupt(pdo); + + ack = hpi6000_wait_dsp_ack(pao, dsp_index, HPI_HIF_GET_RESP); + if (ack & HPI_HIF_ERROR_MASK) + return HPI6000_ERROR_MSG_RESP_GET_RESP_ACK; + + /* get the address and size */ + if (phw->response_buffer_address_on_dsp == 0) { + timeout = TIMEOUT; + do { + address = + hpi_read_word(pdo, + HPI_HIF_ADDR(response_buffer_address)); + } while (hpi6000_check_PCI2040_error_flag(pao, H6READ) + && --timeout); + phw->response_buffer_address_on_dsp = address; + + if (!timeout) + return HPI6000_ERROR_RESP_GET_ADR; + } else + address = phw->response_buffer_address_on_dsp; + + /* read the length of the response back from the DSP */ + timeout = TIMEOUT; + do { + length = hpi_read_word(pdo, HPI_HIF_ADDR(length)); + } while (hpi6000_check_PCI2040_error_flag(pao, H6READ) && --timeout); + if (!timeout) + length = sizeof(struct hpi_response); + + /* get it */ + p_data = (u32 *)phr; + if (hpi6000_dsp_block_read32(pao, dsp_index, address, p_data, + (u16)length / 4)) + return HPI6000_ERROR_MSG_RESP_BLOCKREAD32; + + /* set i/f back to idle */ + if (hpi6000_send_host_command(pao, dsp_index, HPI_HIF_IDLE)) + return HPI6000_ERROR_MSG_RESP_IDLECMD; + hpi6000_send_dsp_interrupt(pdo); + + error = hpi_validate_response(phm, phr); + return error; +} + +/* have to set up the below defines to match stuff in the MAP file */ + +#define MSG_ADDRESS (HPI_HIF_BASE+0x18) +#define MSG_LENGTH 11 +#define RESP_ADDRESS (HPI_HIF_BASE+0x44) +#define RESP_LENGTH 16 +#define QUEUE_START (HPI_HIF_BASE+0x88) +#define QUEUE_SIZE 0x8000 + +static short hpi6000_send_data_check_adr(u32 address, u32 length_in_dwords) +{ +/*#define CHECKING // comment this line in to enable checking */ +#ifdef CHECKING + if (address < (u32)MSG_ADDRESS) + return 0; + if (address > (u32)(QUEUE_START + QUEUE_SIZE)) + return 0; + if ((address + (length_in_dwords << 2)) > + (u32)(QUEUE_START + QUEUE_SIZE)) + return 0; +#else + (void)address; + (void)length_in_dwords; + return 1; +#endif +} + +static short hpi6000_send_data(struct hpi_adapter_obj *pao, u16 dsp_index, + struct hpi_message *phm, struct hpi_response *phr) +{ + struct dsp_obj *pdo = + &(*(struct hpi_hw_obj *)pao->priv).ado[dsp_index]; + u32 data_sent = 0; + u16 ack; + u32 length, address; + u32 *p_data = (u32 *)phm->u.d.u.data.pb_data; + u16 time_out = 8; + + (void)phr; + + /* round dwDataSize down to nearest 4 bytes */ + while ((data_sent < (phm->u.d.u.data.data_size & ~3L)) + && --time_out) { + ack = hpi6000_wait_dsp_ack(pao, dsp_index, HPI_HIF_IDLE); + if (ack & HPI_HIF_ERROR_MASK) + return HPI6000_ERROR_SEND_DATA_IDLE_TIMEOUT; + + if (hpi6000_send_host_command(pao, dsp_index, + HPI_HIF_SEND_DATA)) + return HPI6000_ERROR_SEND_DATA_CMD; + + hpi6000_send_dsp_interrupt(pdo); + + ack = hpi6000_wait_dsp_ack(pao, dsp_index, HPI_HIF_SEND_DATA); + + if (ack & HPI_HIF_ERROR_MASK) + return HPI6000_ERROR_SEND_DATA_ACK; + + do { + /* get the address and size */ + address = hpi_read_word(pdo, HPI_HIF_ADDR(address)); + /* DSP returns number of DWORDS */ + length = hpi_read_word(pdo, HPI_HIF_ADDR(length)); + } while (hpi6000_check_PCI2040_error_flag(pao, H6READ)); + + if (!hpi6000_send_data_check_adr(address, length)) + return HPI6000_ERROR_SEND_DATA_ADR; + + /* send the data. break data into 512 DWORD blocks (2K bytes) + * and send using block write. 2Kbytes is the max as this is the + * memory window given to the HPI data register by the PCI2040 + */ + + { + u32 len = length; + u32 blk_len = 512; + while (len) { + if (len < blk_len) + blk_len = len; + if (hpi6000_dsp_block_write32(pao, dsp_index, + address, p_data, blk_len)) + return HPI6000_ERROR_SEND_DATA_WRITE; + address += blk_len * 4; + p_data += blk_len; + len -= blk_len; + } + } + + if (hpi6000_send_host_command(pao, dsp_index, HPI_HIF_IDLE)) + return HPI6000_ERROR_SEND_DATA_IDLECMD; + + hpi6000_send_dsp_interrupt(pdo); + + data_sent += length * 4; + } + if (!time_out) + return HPI6000_ERROR_SEND_DATA_TIMEOUT; + return 0; +} + +static short hpi6000_get_data(struct hpi_adapter_obj *pao, u16 dsp_index, + struct hpi_message *phm, struct hpi_response *phr) +{ + struct dsp_obj *pdo = + &(*(struct hpi_hw_obj *)pao->priv).ado[dsp_index]; + u32 data_got = 0; + u16 ack; + u32 length, address; + u32 *p_data = (u32 *)phm->u.d.u.data.pb_data; + + (void)phr; /* this parameter not used! */ + + /* round dwDataSize down to nearest 4 bytes */ + while (data_got < (phm->u.d.u.data.data_size & ~3L)) { + ack = hpi6000_wait_dsp_ack(pao, dsp_index, HPI_HIF_IDLE); + if (ack & HPI_HIF_ERROR_MASK) + return HPI6000_ERROR_GET_DATA_IDLE_TIMEOUT; + + if (hpi6000_send_host_command(pao, dsp_index, + HPI_HIF_GET_DATA)) + return HPI6000_ERROR_GET_DATA_CMD; + hpi6000_send_dsp_interrupt(pdo); + + ack = hpi6000_wait_dsp_ack(pao, dsp_index, HPI_HIF_GET_DATA); + + if (ack & HPI_HIF_ERROR_MASK) + return HPI6000_ERROR_GET_DATA_ACK; + + /* get the address and size */ + do { + address = hpi_read_word(pdo, HPI_HIF_ADDR(address)); + length = hpi_read_word(pdo, HPI_HIF_ADDR(length)); + } while (hpi6000_check_PCI2040_error_flag(pao, H6READ)); + + /* read the data */ + { + u32 len = length; + u32 blk_len = 512; + while (len) { + if (len < blk_len) + blk_len = len; + if (hpi6000_dsp_block_read32(pao, dsp_index, + address, p_data, blk_len)) + return HPI6000_ERROR_GET_DATA_READ; + address += blk_len * 4; + p_data += blk_len; + len -= blk_len; + } + } + + if (hpi6000_send_host_command(pao, dsp_index, HPI_HIF_IDLE)) + return HPI6000_ERROR_GET_DATA_IDLECMD; + hpi6000_send_dsp_interrupt(pdo); + + data_got += length * 4; + } + return 0; +} + +static void hpi6000_send_dsp_interrupt(struct dsp_obj *pdo) +{ + iowrite32(0x00030003, pdo->prHPI_control); /* DSPINT */ +} + +static short hpi6000_send_host_command(struct hpi_adapter_obj *pao, + u16 dsp_index, u32 host_cmd) +{ + struct dsp_obj *pdo = + &(*(struct hpi_hw_obj *)pao->priv).ado[dsp_index]; + u32 timeout = TIMEOUT; + + /* set command */ + do { + hpi_write_word(pdo, HPI_HIF_ADDR(host_cmd), host_cmd); + /* flush the FIFO */ + hpi_set_address(pdo, HPI_HIF_ADDR(host_cmd)); + } while (hpi6000_check_PCI2040_error_flag(pao, H6WRITE) && --timeout); + + /* reset the interrupt bit */ + iowrite32(0x00040004, pdo->prHPI_control); + + if (timeout) + return 0; + else + return 1; +} + +/* if the PCI2040 has recorded an HPI timeout, reset the error and return 1 */ +static short hpi6000_check_PCI2040_error_flag(struct hpi_adapter_obj *pao, + u16 read_or_write) +{ + u32 hPI_error; + + struct hpi_hw_obj *phw = (struct hpi_hw_obj *)pao->priv; + + /* read the error bits from the PCI2040 */ + hPI_error = ioread32(phw->dw2040_HPICSR + HPI_ERROR_REPORT); + if (hPI_error) { + /* reset the error flag */ + iowrite32(0L, phw->dw2040_HPICSR + HPI_ERROR_REPORT); + phw->pCI2040HPI_error_count++; + if (read_or_write == 1) + gw_pci_read_asserts++; /************* inc global */ + else + gw_pci_write_asserts++; + return 1; + } else + return 0; +} + +static short hpi6000_wait_dsp_ack(struct hpi_adapter_obj *pao, u16 dsp_index, + u32 ack_value) +{ + struct dsp_obj *pdo = + &(*(struct hpi_hw_obj *)pao->priv).ado[dsp_index]; + u32 ack = 0L; + u32 timeout; + u32 hPIC = 0L; + + /* wait for host interrupt to signal ack is ready */ + timeout = TIMEOUT; + while (--timeout) { + hPIC = ioread32(pdo->prHPI_control); + if (hPIC & 0x04) /* 0x04 = HINT from DSP */ + break; + } + if (timeout == 0) + return HPI_HIF_ERROR_MASK; + + /* wait for dwAckValue */ + timeout = TIMEOUT; + while (--timeout) { + /* read the ack mailbox */ + ack = hpi_read_word(pdo, HPI_HIF_ADDR(dsp_ack)); + if (ack == ack_value) + break; + if ((ack & HPI_HIF_ERROR_MASK) + && !hpi6000_check_PCI2040_error_flag(pao, H6READ)) + break; + /*for (i=0;i<1000;i++) */ + /* dwPause=i+1; */ + } + if (ack & HPI_HIF_ERROR_MASK) + /* indicates bad read from DSP - + typically 0xffffff is read for some reason */ + ack = HPI_HIF_ERROR_MASK; + + if (timeout == 0) + ack = HPI_HIF_ERROR_MASK; + return (short)ack; +} + +static short hpi6000_update_control_cache(struct hpi_adapter_obj *pao, + struct hpi_message *phm) +{ + const u16 dsp_index = 0; + struct hpi_hw_obj *phw = (struct hpi_hw_obj *)pao->priv; + struct dsp_obj *pdo = &phw->ado[dsp_index]; + u32 timeout; + u32 cache_dirty_flag; + u16 err; + + hpios_dsplock_lock(pao); + + timeout = TIMEOUT; + do { + cache_dirty_flag = + hpi_read_word((struct dsp_obj *)pdo, + HPI_HIF_ADDR(control_cache_is_dirty)); + } while (hpi6000_check_PCI2040_error_flag(pao, H6READ) && --timeout); + if (!timeout) { + err = HPI6000_ERROR_CONTROL_CACHE_PARAMS; + goto unlock; + } + + if (cache_dirty_flag) { + /* read the cached controls */ + u32 address; + u32 length; + + timeout = TIMEOUT; + if (pdo->control_cache_address_on_dsp == 0) { + do { + address = + hpi_read_word((struct dsp_obj *)pdo, + HPI_HIF_ADDR(control_cache_address)); + + length = hpi_read_word((struct dsp_obj *)pdo, + HPI_HIF_ADDR + (control_cache_size_in_bytes)); + } while (hpi6000_check_PCI2040_error_flag(pao, H6READ) + && --timeout); + if (!timeout) { + err = HPI6000_ERROR_CONTROL_CACHE_ADDRLEN; + goto unlock; + } + pdo->control_cache_address_on_dsp = address; + pdo->control_cache_length_on_dsp = length; + } else { + address = pdo->control_cache_address_on_dsp; + length = pdo->control_cache_length_on_dsp; + } + + if (hpi6000_dsp_block_read32(pao, dsp_index, address, + (u32 *)&phw->control_cache[0], + length / sizeof(u32))) { + err = HPI6000_ERROR_CONTROL_CACHE_READ; + goto unlock; + } + do { + hpi_write_word((struct dsp_obj *)pdo, + HPI_HIF_ADDR(control_cache_is_dirty), 0); + /* flush the FIFO */ + hpi_set_address(pdo, HPI_HIF_ADDR(host_cmd)); + } while (hpi6000_check_PCI2040_error_flag(pao, H6WRITE) + && --timeout); + if (!timeout) { + err = HPI6000_ERROR_CONTROL_CACHE_FLUSH; + goto unlock; + } + + } + err = 0; + +unlock: + hpios_dsplock_unlock(pao); + return err; +} + +/** Get dsp index for multi DSP adapters only */ +static u16 get_dsp_index(struct hpi_adapter_obj *pao, struct hpi_message *phm) +{ + u16 ret = 0; + switch (phm->object) { + case HPI_OBJ_ISTREAM: + if (phm->obj_index < 2) + ret = 1; + break; + case HPI_OBJ_PROFILE: + ret = phm->obj_index; + break; + default: + break; + } + return ret; +} + +/** Complete transaction with DSP + +Send message, get response, send or get stream data if any. +*/ +static void hw_message(struct hpi_adapter_obj *pao, struct hpi_message *phm, + struct hpi_response *phr) +{ + u16 error = 0; + u16 dsp_index = 0; + u16 num_dsp = ((struct hpi_hw_obj *)pao->priv)->num_dsp; + hpios_dsplock_lock(pao); + + if (num_dsp < 2) + dsp_index = 0; + else { + dsp_index = get_dsp_index(pao, phm); + + /* is this checked on the DSP anyway? */ + if ((phm->function == HPI_ISTREAM_GROUP_ADD) + || (phm->function == HPI_OSTREAM_GROUP_ADD)) { + struct hpi_message hm; + u16 add_index; + hm.obj_index = phm->u.d.u.stream.stream_index; + hm.object = phm->u.d.u.stream.object_type; + add_index = get_dsp_index(pao, &hm); + if (add_index != dsp_index) { + phr->error = HPI_ERROR_NO_INTERDSP_GROUPS; + return; + } + } + } + error = hpi6000_message_response_sequence(pao, dsp_index, phm, phr); + + /* maybe an error response */ + if (error) { + /* something failed in the HPI/DSP interface */ + phr->error = error; + /* just the header of the response is valid */ + phr->size = sizeof(struct hpi_response_header); + goto err; + } + + if (phr->error != 0) /* something failed in the DSP */ + goto err; + + switch (phm->function) { + case HPI_OSTREAM_WRITE: + case HPI_ISTREAM_ANC_WRITE: + error = hpi6000_send_data(pao, dsp_index, phm, phr); + break; + case HPI_ISTREAM_READ: + case HPI_OSTREAM_ANC_READ: + error = hpi6000_get_data(pao, dsp_index, phm, phr); + break; + case HPI_ADAPTER_GET_ASSERT: + phr->u.a.adapter_index = 0; /* dsp 0 default */ + if (num_dsp == 2) { + if (!phr->u.a.adapter_type) { + /* no assert from dsp 0, check dsp 1 */ + error = hpi6000_message_response_sequence(pao, + 1, phm, phr); + phr->u.a.adapter_index = 1; + } + } + } + + if (error) + phr->error = error; + +err: + hpios_dsplock_unlock(pao); + return; +} diff --git a/sound/pci/asihpi/hpi6000.h b/sound/pci/asihpi/hpi6000.h new file mode 100644 index 00000000000..4c7d507c0ec --- /dev/null +++ b/sound/pci/asihpi/hpi6000.h @@ -0,0 +1,70 @@ +/***************************************************************************** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +Public declarations for DSP Proramming Interface to TI C6701 + +Shared between hpi6000.c and DSP code + +(C) Copyright AudioScience Inc. 1998-2003 +******************************************************************************/ + +#ifndef _HPI6000_H_ +#define _HPI6000_H_ + +#define HPI_NMIXER_CONTROLS 200 + +/* + * Control caching is always supported in the HPI code. + * The DSP should make sure that dwControlCacheSizeInBytes is initialized to 0 + * during boot to make it in-active. + */ +struct hpi_hif_6000 { + u32 host_cmd; + u32 dsp_ack; + u32 address; + u32 length; + u32 message_buffer_address; + u32 response_buffer_address; + u32 dsp_number; + u32 adapter_info; + u32 control_cache_is_dirty; + u32 control_cache_address; + u32 control_cache_size_in_bytes; + u32 control_cache_count; +}; + +#define HPI_HIF_PACK_ADAPTER_INFO(adapter, version_major, version_minor) \ + ((adapter << 16) | (version_major << 8) | version_minor) +#define HPI_HIF_ADAPTER_INFO_EXTRACT_ADAPTER(adapterinfo) \ + ((adapterinfo >> 16) & 0xffff) +#define HPI_HIF_ADAPTER_INFO_EXTRACT_HWVERSION_MAJOR(adapterinfo) \ + ((adapterinfo >> 8) & 0xff) +#define HPI_HIF_ADAPTER_INFO_EXTRACT_HWVERSION_MINOR(adapterinfo) \ + (adapterinfo & 0xff) + +/* Command/status exchanged between host and DSP */ +#define HPI_HIF_IDLE 0 +#define HPI_HIF_SEND_MSG 1 +#define HPI_HIF_GET_RESP 2 +#define HPI_HIF_DATA_MASK 0x10 +#define HPI_HIF_SEND_DATA 0x13 +#define HPI_HIF_GET_DATA 0x14 +#define HPI_HIF_SEND_DONE 5 +#define HPI_HIF_RESET 9 + +#endif /* _HPI6000_H_ */ diff --git a/sound/pci/asihpi/hpi6205.c b/sound/pci/asihpi/hpi6205.c new file mode 100644 index 00000000000..8df2ff76d94 --- /dev/null +++ b/sound/pci/asihpi/hpi6205.c @@ -0,0 +1,2332 @@ +/****************************************************************************** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Hardware Programming Interface (HPI) for AudioScience + ASI50xx, AS51xx, ASI6xxx, ASI87xx ASI89xx series adapters. + These PCI and PCIe bus adapters are based on a + TMS320C6205 PCI bus mastering DSP, + and (except ASI50xx) TI TMS320C6xxx floating point DSP + + Exported function: + void HPI_6205(struct hpi_message *phm, struct hpi_response *phr) + +(C) Copyright AudioScience Inc. 1998-2010 +*******************************************************************************/ +#define SOURCEFILE_NAME "hpi6205.c" + +#include "hpi_internal.h" +#include "hpimsginit.h" +#include "hpidebug.h" +#include "hpi6205.h" +#include "hpidspcd.h" +#include "hpicmn.h" + +/*****************************************************************************/ +/* HPI6205 specific error codes */ +#define HPI6205_ERROR_BASE 1000 +/*#define HPI6205_ERROR_MEM_ALLOC 1001 */ +#define HPI6205_ERROR_6205_NO_IRQ 1002 +#define HPI6205_ERROR_6205_INIT_FAILED 1003 +/*#define HPI6205_ERROR_MISSING_DSPCODE 1004 */ +#define HPI6205_ERROR_UNKNOWN_PCI_DEVICE 1005 +#define HPI6205_ERROR_6205_REG 1006 +#define HPI6205_ERROR_6205_DSPPAGE 1007 +#define HPI6205_ERROR_BAD_DSPINDEX 1008 +#define HPI6205_ERROR_C6713_HPIC 1009 +#define HPI6205_ERROR_C6713_HPIA 1010 +#define HPI6205_ERROR_C6713_PLL 1011 +#define HPI6205_ERROR_DSP_INTMEM 1012 +#define HPI6205_ERROR_DSP_EXTMEM 1013 +#define HPI6205_ERROR_DSP_PLD 1014 +#define HPI6205_ERROR_MSG_RESP_IDLE_TIMEOUT 1015 +#define HPI6205_ERROR_MSG_RESP_TIMEOUT 1016 +#define HPI6205_ERROR_6205_EEPROM 1017 +#define HPI6205_ERROR_DSP_EMIF 1018 + +#define hpi6205_error(dsp_index, err) (err) +/*****************************************************************************/ +/* for C6205 PCI i/f */ +/* Host Status Register (HSR) bitfields */ +#define C6205_HSR_INTSRC 0x01 +#define C6205_HSR_INTAVAL 0x02 +#define C6205_HSR_INTAM 0x04 +#define C6205_HSR_CFGERR 0x08 +#define C6205_HSR_EEREAD 0x10 +/* Host-to-DSP Control Register (HDCR) bitfields */ +#define C6205_HDCR_WARMRESET 0x01 +#define C6205_HDCR_DSPINT 0x02 +#define C6205_HDCR_PCIBOOT 0x04 +/* DSP Page Register (DSPP) bitfields, */ +/* defines 4 Mbyte page that BAR0 points to */ +#define C6205_DSPP_MAP1 0x400 + +/* BAR0 maps to prefetchable 4 Mbyte memory block set by DSPP. + * BAR1 maps to non-prefetchable 8 Mbyte memory block + * of DSP memory mapped registers (starting at 0x01800000). + * 0x01800000 is hardcoded in the PCI i/f, so that only the offset from this + * needs to be added to the BAR1 base address set in the PCI config reg + */ +#define C6205_BAR1_PCI_IO_OFFSET (0x027FFF0L) +#define C6205_BAR1_HSR (C6205_BAR1_PCI_IO_OFFSET) +#define C6205_BAR1_HDCR (C6205_BAR1_PCI_IO_OFFSET+4) +#define C6205_BAR1_DSPP (C6205_BAR1_PCI_IO_OFFSET+8) + +/* used to control LED (revA) and reset C6713 (revB) */ +#define C6205_BAR0_TIMER1_CTL (0x01980000L) + +/* For first 6713 in CE1 space, using DA17,16,2 */ +#define HPICL_ADDR 0x01400000L +#define HPICH_ADDR 0x01400004L +#define HPIAL_ADDR 0x01410000L +#define HPIAH_ADDR 0x01410004L +#define HPIDIL_ADDR 0x01420000L +#define HPIDIH_ADDR 0x01420004L +#define HPIDL_ADDR 0x01430000L +#define HPIDH_ADDR 0x01430004L + +#define C6713_EMIF_GCTL 0x01800000 +#define C6713_EMIF_CE1 0x01800004 +#define C6713_EMIF_CE0 0x01800008 +#define C6713_EMIF_CE2 0x01800010 +#define C6713_EMIF_CE3 0x01800014 +#define C6713_EMIF_SDRAMCTL 0x01800018 +#define C6713_EMIF_SDRAMTIMING 0x0180001C +#define C6713_EMIF_SDRAMEXT 0x01800020 + +struct hpi_hw_obj { + /* PCI registers */ + __iomem u32 *prHSR; + __iomem u32 *prHDCR; + __iomem u32 *prDSPP; + + u32 dsp_page; + + struct consistent_dma_area h_locked_mem; + struct bus_master_interface *p_interface_buffer; + + u16 flag_outstream_just_reset[HPI_MAX_STREAMS]; + /* a non-NULL handle means there is an HPI allocated buffer */ + struct consistent_dma_area instream_host_buffers[HPI_MAX_STREAMS]; + struct consistent_dma_area outstream_host_buffers[HPI_MAX_STREAMS]; + /* non-zero size means a buffer exists, may be external */ + u32 instream_host_buffer_size[HPI_MAX_STREAMS]; + u32 outstream_host_buffer_size[HPI_MAX_STREAMS]; + + struct consistent_dma_area h_control_cache; + struct consistent_dma_area h_async_event_buffer; +/* struct hpi_control_cache_single *pControlCache; */ + struct hpi_async_event *p_async_event_buffer; + struct hpi_control_cache *p_cache; +}; + +/*****************************************************************************/ +/* local prototypes */ + +#define check_before_bbm_copy(status, p_bbm_data, l_first_write, l_second_write) + +static int wait_dsp_ack(struct hpi_hw_obj *phw, int state, int timeout_us); + +static void send_dsp_command(struct hpi_hw_obj *phw, int cmd); + +static u16 adapter_boot_load_dsp(struct hpi_adapter_obj *pao, + u32 *pos_error_code); + +static u16 message_response_sequence(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); + +static void hw_message(struct hpi_adapter_obj *pao, struct hpi_message *phm, + struct hpi_response *phr); + +#define HPI6205_TIMEOUT 1000000 + +static void subsys_create_adapter(struct hpi_message *phm, + struct hpi_response *phr); +static void subsys_delete_adapter(struct hpi_message *phm, + struct hpi_response *phr); + +static u16 create_adapter_obj(struct hpi_adapter_obj *pao, + u32 *pos_error_code); + +static void delete_adapter_obj(struct hpi_adapter_obj *pao); + +static void outstream_host_buffer_allocate(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); + +static void outstream_host_buffer_get_info(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); + +static void outstream_host_buffer_free(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); +static void outstream_write(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); + +static void outstream_get_info(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); + +static void outstream_start(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); + +static void outstream_open(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); + +static void outstream_reset(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); + +static void instream_host_buffer_allocate(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); + +static void instream_host_buffer_get_info(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); + +static void instream_host_buffer_free(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); + +static void instream_read(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); + +static void instream_get_info(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); + +static void instream_start(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr); + +static u32 boot_loader_read_mem32(struct hpi_adapter_obj *pao, int dsp_index, + u32 address); + +static u16 boot_loader_write_mem32(struct hpi_adapter_obj *pao, int dsp_index, + u32 address, u32 data); + +static u16 boot_loader_config_emif(struct hpi_adapter_obj *pao, + int dsp_index); + +static u16 boot_loader_test_memory(struct hpi_adapter_obj *pao, int dsp_index, + u32 address, u32 length); + +static u16 boot_loader_test_internal_memory(struct hpi_adapter_obj *pao, + int dsp_index); + +static u16 boot_loader_test_external_memory(struct hpi_adapter_obj *pao, + int dsp_index); + +static u16 boot_loader_test_pld(struct hpi_adapter_obj *pao, int dsp_index); + +/*****************************************************************************/ + +static void subsys_message(struct hpi_message *phm, struct hpi_response *phr) +{ + + switch (phm->function) { + case HPI_SUBSYS_OPEN: + case HPI_SUBSYS_CLOSE: + case HPI_SUBSYS_GET_INFO: + case HPI_SUBSYS_DRIVER_UNLOAD: + case HPI_SUBSYS_DRIVER_LOAD: + case HPI_SUBSYS_FIND_ADAPTERS: + /* messages that should not get here */ + phr->error = HPI_ERROR_UNIMPLEMENTED; + break; + case HPI_SUBSYS_CREATE_ADAPTER: + subsys_create_adapter(phm, phr); + break; + case HPI_SUBSYS_DELETE_ADAPTER: + subsys_delete_adapter(phm, phr); + break; + default: + phr->error = HPI_ERROR_INVALID_FUNC; + break; + } +} + +static void control_message(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + + struct hpi_hw_obj *phw = pao->priv; + + switch (phm->function) { + case HPI_CONTROL_GET_STATE: + if (pao->has_control_cache) { + rmb(); /* make sure we see updates DM_aed from DSP */ + if (hpi_check_control_cache(phw->p_cache, phm, phr)) + break; + } + hw_message(pao, phm, phr); + break; + case HPI_CONTROL_GET_INFO: + hw_message(pao, phm, phr); + break; + case HPI_CONTROL_SET_STATE: + hw_message(pao, phm, phr); + if (pao->has_control_cache) + hpi_sync_control_cache(phw->p_cache, phm, phr); + break; + default: + phr->error = HPI_ERROR_INVALID_FUNC; + break; + } +} + +static void adapter_message(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + switch (phm->function) { + default: + hw_message(pao, phm, phr); + break; + } +} + +static void outstream_message(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + + if (phm->obj_index >= HPI_MAX_STREAMS) { + phr->error = HPI_ERROR_INVALID_STREAM; + HPI_DEBUG_LOG(WARNING, + "message referencing invalid stream %d " + "on adapter index %d\n", phm->obj_index, + phm->adapter_index); + return; + } + + switch (phm->function) { + case HPI_OSTREAM_WRITE: + outstream_write(pao, phm, phr); + break; + case HPI_OSTREAM_GET_INFO: + outstream_get_info(pao, phm, phr); + break; + case HPI_OSTREAM_HOSTBUFFER_ALLOC: + outstream_host_buffer_allocate(pao, phm, phr); + break; + case HPI_OSTREAM_HOSTBUFFER_GET_INFO: + outstream_host_buffer_get_info(pao, phm, phr); + break; + case HPI_OSTREAM_HOSTBUFFER_FREE: + outstream_host_buffer_free(pao, phm, phr); + break; + case HPI_OSTREAM_START: + outstream_start(pao, phm, phr); + break; + case HPI_OSTREAM_OPEN: + outstream_open(pao, phm, phr); + break; + case HPI_OSTREAM_RESET: + outstream_reset(pao, phm, phr); + break; + default: + hw_message(pao, phm, phr); + break; + } +} + +static void instream_message(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + + if (phm->obj_index >= HPI_MAX_STREAMS) { + phr->error = HPI_ERROR_INVALID_STREAM; + HPI_DEBUG_LOG(WARNING, + "message referencing invalid stream %d " + "on adapter index %d\n", phm->obj_index, + phm->adapter_index); + return; + } + + switch (phm->function) { + case HPI_ISTREAM_READ: + instream_read(pao, phm, phr); + break; + case HPI_ISTREAM_GET_INFO: + instream_get_info(pao, phm, phr); + break; + case HPI_ISTREAM_HOSTBUFFER_ALLOC: + instream_host_buffer_allocate(pao, phm, phr); + break; + case HPI_ISTREAM_HOSTBUFFER_GET_INFO: + instream_host_buffer_get_info(pao, phm, phr); + break; + case HPI_ISTREAM_HOSTBUFFER_FREE: + instream_host_buffer_free(pao, phm, phr); + break; + case HPI_ISTREAM_START: + instream_start(pao, phm, phr); + break; + default: + hw_message(pao, phm, phr); + break; + } +} + +/*****************************************************************************/ +/** Entry point to this HPI backend + * All calls to the HPI start here + */ +void HPI_6205(struct hpi_message *phm, struct hpi_response *phr) +{ + struct hpi_adapter_obj *pao = NULL; + + /* subsytem messages are processed by every HPI. + * All other messages are ignored unless the adapter index matches + * an adapter in the HPI + */ + HPI_DEBUG_LOG(DEBUG, "HPI obj=%d, func=%d\n", phm->object, + phm->function); + + /* if Dsp has crashed then do not communicate with it any more */ + if (phm->object != HPI_OBJ_SUBSYSTEM) { + pao = hpi_find_adapter(phm->adapter_index); + if (!pao) { + HPI_DEBUG_LOG(DEBUG, + " %d,%d refused, for another HPI?\n", + phm->object, phm->function); + return; + } + + if ((pao->dsp_crashed >= 10) + && (phm->function != HPI_ADAPTER_DEBUG_READ)) { + /* allow last resort debug read even after crash */ + hpi_init_response(phr, phm->object, phm->function, + HPI_ERROR_DSP_HARDWARE); + HPI_DEBUG_LOG(WARNING, " %d,%d dsp crashed.\n", + phm->object, phm->function); + return; + } + } + + /* Init default response */ + if (phm->function != HPI_SUBSYS_CREATE_ADAPTER) + hpi_init_response(phr, phm->object, phm->function, + HPI_ERROR_PROCESSING_MESSAGE); + + HPI_DEBUG_LOG(VERBOSE, "start of switch\n"); + switch (phm->type) { + case HPI_TYPE_MESSAGE: + switch (phm->object) { + case HPI_OBJ_SUBSYSTEM: + subsys_message(phm, phr); + break; + + case HPI_OBJ_ADAPTER: + phr->size = + sizeof(struct hpi_response_header) + + sizeof(struct hpi_adapter_res); + adapter_message(pao, phm, phr); + break; + + case HPI_OBJ_CONTROLEX: + case HPI_OBJ_CONTROL: + control_message(pao, phm, phr); + break; + + case HPI_OBJ_OSTREAM: + outstream_message(pao, phm, phr); + break; + + case HPI_OBJ_ISTREAM: + instream_message(pao, phm, phr); + break; + + default: + hw_message(pao, phm, phr); + break; + } + break; + + default: + phr->error = HPI_ERROR_INVALID_TYPE; + break; + } +} + +/*****************************************************************************/ +/* SUBSYSTEM */ + +/** Create an adapter object and initialise it based on resource information + * passed in in the message + * *** NOTE - you cannot use this function AND the FindAdapters function at the + * same time, the application must use only one of them to get the adapters *** + */ +static void subsys_create_adapter(struct hpi_message *phm, + struct hpi_response *phr) +{ + /* create temp adapter obj, because we don't know what index yet */ + struct hpi_adapter_obj ao; + u32 os_error_code; + u16 err; + + HPI_DEBUG_LOG(DEBUG, " subsys_create_adapter\n"); + + memset(&ao, 0, sizeof(ao)); + + /* this HPI only creates adapters for TI/PCI devices */ + if (phm->u.s.resource.bus_type != HPI_BUS_PCI) + return; + if (phm->u.s.resource.r.pci->vendor_id != HPI_PCI_VENDOR_ID_TI) + return; + if (phm->u.s.resource.r.pci->device_id != HPI_PCI_DEV_ID_DSP6205) + return; + + ao.priv = kmalloc(sizeof(struct hpi_hw_obj), GFP_KERNEL); + if (!ao.priv) { + HPI_DEBUG_LOG(ERROR, "cant get mem for adapter object\n"); + phr->error = HPI_ERROR_MEMORY_ALLOC; + return; + } + memset(ao.priv, 0, sizeof(struct hpi_hw_obj)); + + ao.pci = *phm->u.s.resource.r.pci; + err = create_adapter_obj(&ao, &os_error_code); + if (!err) + err = hpi_add_adapter(&ao); + if (err) { + phr->u.s.data = os_error_code; + delete_adapter_obj(&ao); + phr->error = err; + return; + } + + phr->u.s.aw_adapter_list[ao.index] = ao.adapter_type; + phr->u.s.adapter_index = ao.index; + phr->u.s.num_adapters++; + phr->error = 0; +} + +/** delete an adapter - required by WDM driver */ +static void subsys_delete_adapter(struct hpi_message *phm, + struct hpi_response *phr) +{ + struct hpi_adapter_obj *pao; + struct hpi_hw_obj *phw; + + pao = hpi_find_adapter(phm->adapter_index); + if (!pao) { + phr->error = HPI_ERROR_INVALID_OBJ_INDEX; + return; + } + phw = (struct hpi_hw_obj *)pao->priv; + /* reset adapter h/w */ + /* Reset C6713 #1 */ + boot_loader_write_mem32(pao, 0, C6205_BAR0_TIMER1_CTL, 0); + /* reset C6205 */ + iowrite32(C6205_HDCR_WARMRESET, phw->prHDCR); + + delete_adapter_obj(pao); + phr->error = 0; +} + +/** Create adapter object + allocate buffers, bootload DSPs, initialise control cache +*/ +static u16 create_adapter_obj(struct hpi_adapter_obj *pao, + u32 *pos_error_code) +{ + struct hpi_hw_obj *phw = pao->priv; + struct bus_master_interface *interface; + u32 phys_addr; +#ifndef HPI6205_NO_HSR_POLL + u32 time_out = HPI6205_TIMEOUT; + u32 temp1; +#endif + int i; + u16 err; + + /* init error reporting */ + pao->dsp_crashed = 0; + + for (i = 0; i < HPI_MAX_STREAMS; i++) + phw->flag_outstream_just_reset[i] = 1; + + /* The C6205 memory area 1 is 8Mbyte window into DSP registers */ + phw->prHSR = + pao->pci.ap_mem_base[1] + + C6205_BAR1_HSR / sizeof(*pao->pci.ap_mem_base[1]); + phw->prHDCR = + pao->pci.ap_mem_base[1] + + C6205_BAR1_HDCR / sizeof(*pao->pci.ap_mem_base[1]); + phw->prDSPP = + pao->pci.ap_mem_base[1] + + C6205_BAR1_DSPP / sizeof(*pao->pci.ap_mem_base[1]); + + pao->has_control_cache = 0; + + if (hpios_locked_mem_alloc(&phw->h_locked_mem, + sizeof(struct bus_master_interface), + pao->pci.p_os_data)) + phw->p_interface_buffer = NULL; + else if (hpios_locked_mem_get_virt_addr(&phw->h_locked_mem, + (void *)&phw->p_interface_buffer)) + phw->p_interface_buffer = NULL; + + HPI_DEBUG_LOG(DEBUG, "interface buffer address %p\n", + phw->p_interface_buffer); + + if (phw->p_interface_buffer) { + memset((void *)phw->p_interface_buffer, 0, + sizeof(struct bus_master_interface)); + phw->p_interface_buffer->dsp_ack = H620_HIF_UNKNOWN; + } + + err = adapter_boot_load_dsp(pao, pos_error_code); + if (err) + /* no need to clean up as SubSysCreateAdapter */ + /* calls DeleteAdapter on error. */ + return err; + + HPI_DEBUG_LOG(INFO, "load DSP code OK\n"); + + /* allow boot load even if mem alloc wont work */ + if (!phw->p_interface_buffer) + return hpi6205_error(0, HPI_ERROR_MEMORY_ALLOC); + + interface = phw->p_interface_buffer; + +#ifndef HPI6205_NO_HSR_POLL + /* wait for first interrupt indicating the DSP init is done */ + time_out = HPI6205_TIMEOUT * 10; + temp1 = 0; + while (((temp1 & C6205_HSR_INTSRC) == 0) && --time_out) + temp1 = ioread32(phw->prHSR); + + if (temp1 & C6205_HSR_INTSRC) + HPI_DEBUG_LOG(INFO, + "interrupt confirming DSP code running OK\n"); + else { + HPI_DEBUG_LOG(ERROR, + "timed out waiting for interrupt " + "confirming DSP code running\n"); + return hpi6205_error(0, HPI6205_ERROR_6205_NO_IRQ); + } + + /* reset the interrupt */ + iowrite32(C6205_HSR_INTSRC, phw->prHSR); +#endif + + /* make sure the DSP has started ok */ + if (!wait_dsp_ack(phw, H620_HIF_RESET, HPI6205_TIMEOUT * 10)) { + HPI_DEBUG_LOG(ERROR, "timed out waiting reset state \n"); + return hpi6205_error(0, HPI6205_ERROR_6205_INIT_FAILED); + } + /* Note that *pao, *phw are zeroed after allocation, + * so pointers and flags are NULL by default. + * Allocate bus mastering control cache buffer and tell the DSP about it + */ + if (interface->control_cache.number_of_controls) { + void *p_control_cache_virtual; + + err = hpios_locked_mem_alloc(&phw->h_control_cache, + interface->control_cache.size_in_bytes, + pao->pci.p_os_data); + if (!err) + err = hpios_locked_mem_get_virt_addr(&phw-> + h_control_cache, &p_control_cache_virtual); + if (!err) { + memset(p_control_cache_virtual, 0, + interface->control_cache.size_in_bytes); + + phw->p_cache = + hpi_alloc_control_cache(interface-> + control_cache.number_of_controls, + interface->control_cache.size_in_bytes, + (struct hpi_control_cache_info *) + p_control_cache_virtual); + } + if (!err) { + err = hpios_locked_mem_get_phys_addr(&phw-> + h_control_cache, &phys_addr); + interface->control_cache.physical_address32 = + phys_addr; + } + + if (!err) + pao->has_control_cache = 1; + else { + if (hpios_locked_mem_valid(&phw->h_control_cache)) + hpios_locked_mem_free(&phw->h_control_cache); + pao->has_control_cache = 0; + } + } + /* allocate bus mastering async buffer and tell the DSP about it */ + if (interface->async_buffer.b.size) { + err = hpios_locked_mem_alloc(&phw->h_async_event_buffer, + interface->async_buffer.b.size * + sizeof(struct hpi_async_event), pao->pci.p_os_data); + if (!err) + err = hpios_locked_mem_get_virt_addr + (&phw->h_async_event_buffer, (void *) + &phw->p_async_event_buffer); + if (!err) + memset((void *)phw->p_async_event_buffer, 0, + interface->async_buffer.b.size * + sizeof(struct hpi_async_event)); + if (!err) { + err = hpios_locked_mem_get_phys_addr + (&phw->h_async_event_buffer, &phys_addr); + interface->async_buffer.physical_address32 = + phys_addr; + } + if (err) { + if (hpios_locked_mem_valid(&phw-> + h_async_event_buffer)) { + hpios_locked_mem_free + (&phw->h_async_event_buffer); + phw->p_async_event_buffer = NULL; + } + } + } + send_dsp_command(phw, H620_HIF_IDLE); + + { + struct hpi_message hM; + struct hpi_response hR; + u32 max_streams; + + HPI_DEBUG_LOG(VERBOSE, "init ADAPTER_GET_INFO\n"); + memset(&hM, 0, sizeof(hM)); + hM.type = HPI_TYPE_MESSAGE; + hM.size = sizeof(hM); + hM.object = HPI_OBJ_ADAPTER; + hM.function = HPI_ADAPTER_GET_INFO; + hM.adapter_index = 0; + memset(&hR, 0, sizeof(hR)); + hR.size = sizeof(hR); + + err = message_response_sequence(pao, &hM, &hR); + if (err) { + HPI_DEBUG_LOG(ERROR, "message transport error %d\n", + err); + return err; + } + if (hR.error) + return hR.error; + + pao->adapter_type = hR.u.a.adapter_type; + pao->index = hR.u.a.adapter_index; + + max_streams = hR.u.a.num_outstreams + hR.u.a.num_instreams; + + hpios_locked_mem_prepare((max_streams * 6) / 10, max_streams, + 65536, pao->pci.p_os_data); + + HPI_DEBUG_LOG(VERBOSE, + "got adapter info type %x index %d serial %d\n", + hR.u.a.adapter_type, hR.u.a.adapter_index, + hR.u.a.serial_number); + } + + pao->open = 0; /* upon creation the adapter is closed */ + + HPI_DEBUG_LOG(INFO, "bootload DSP OK\n"); + return 0; +} + +/** Free memory areas allocated by adapter + * this routine is called from SubSysDeleteAdapter, + * and SubSysCreateAdapter if duplicate index +*/ +static void delete_adapter_obj(struct hpi_adapter_obj *pao) +{ + struct hpi_hw_obj *phw; + int i; + + phw = pao->priv; + + if (hpios_locked_mem_valid(&phw->h_async_event_buffer)) { + hpios_locked_mem_free(&phw->h_async_event_buffer); + phw->p_async_event_buffer = NULL; + } + + if (hpios_locked_mem_valid(&phw->h_control_cache)) { + hpios_locked_mem_free(&phw->h_control_cache); + hpi_free_control_cache(phw->p_cache); + } + + if (hpios_locked_mem_valid(&phw->h_locked_mem)) { + hpios_locked_mem_free(&phw->h_locked_mem); + phw->p_interface_buffer = NULL; + } + + for (i = 0; i < HPI_MAX_STREAMS; i++) + if (hpios_locked_mem_valid(&phw->instream_host_buffers[i])) { + hpios_locked_mem_free(&phw->instream_host_buffers[i]); + /*?phw->InStreamHostBuffers[i] = NULL; */ + phw->instream_host_buffer_size[i] = 0; + } + + for (i = 0; i < HPI_MAX_STREAMS; i++) + if (hpios_locked_mem_valid(&phw->outstream_host_buffers[i])) { + hpios_locked_mem_free(&phw->outstream_host_buffers + [i]); + phw->outstream_host_buffer_size[i] = 0; + } + + hpios_locked_mem_unprepare(pao->pci.p_os_data); + + hpi_delete_adapter(pao); + kfree(phw); +} + +/*****************************************************************************/ +/* OutStream Host buffer functions */ + +/** Allocate or attach buffer for busmastering +*/ +static void outstream_host_buffer_allocate(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + u16 err = 0; + u32 command = phm->u.d.u.buffer.command; + struct hpi_hw_obj *phw = pao->priv; + struct bus_master_interface *interface = phw->p_interface_buffer; + + hpi_init_response(phr, phm->object, phm->function, 0); + + if (command == HPI_BUFFER_CMD_EXTERNAL + || command == HPI_BUFFER_CMD_INTERNAL_ALLOC) { + /* ALLOC phase, allocate a buffer with power of 2 size, + get its bus address for PCI bus mastering + */ + phm->u.d.u.buffer.buffer_size = + roundup_pow_of_two(phm->u.d.u.buffer.buffer_size); + /* return old size and allocated size, + so caller can detect change */ + phr->u.d.u.stream_info.data_available = + phw->outstream_host_buffer_size[phm->obj_index]; + phr->u.d.u.stream_info.buffer_size = + phm->u.d.u.buffer.buffer_size; + + if (phw->outstream_host_buffer_size[phm->obj_index] == + phm->u.d.u.buffer.buffer_size) { + /* Same size, no action required */ + return; + } + + if (hpios_locked_mem_valid(&phw->outstream_host_buffers[phm-> + obj_index])) + hpios_locked_mem_free(&phw->outstream_host_buffers + [phm->obj_index]); + + err = hpios_locked_mem_alloc(&phw->outstream_host_buffers + [phm->obj_index], phm->u.d.u.buffer.buffer_size, + pao->pci.p_os_data); + + if (err) { + phr->error = HPI_ERROR_INVALID_DATASIZE; + phw->outstream_host_buffer_size[phm->obj_index] = 0; + return; + } + + err = hpios_locked_mem_get_phys_addr + (&phw->outstream_host_buffers[phm->obj_index], + &phm->u.d.u.buffer.pci_address); + /* get the phys addr into msg for single call alloc caller + * needs to do this for split alloc (or use the same message) + * return the phy address for split alloc in the respose too + */ + phr->u.d.u.stream_info.auxiliary_data_available = + phm->u.d.u.buffer.pci_address; + + if (err) { + hpios_locked_mem_free(&phw->outstream_host_buffers + [phm->obj_index]); + phw->outstream_host_buffer_size[phm->obj_index] = 0; + phr->error = HPI_ERROR_MEMORY_ALLOC; + return; + } + } + + if (command == HPI_BUFFER_CMD_EXTERNAL + || command == HPI_BUFFER_CMD_INTERNAL_GRANTADAPTER) { + /* GRANT phase. Set up the BBM status, tell the DSP about + the buffer so it can start using BBM. + */ + struct hpi_hostbuffer_status *status; + + if (phm->u.d.u.buffer.buffer_size & (phm->u.d.u.buffer. + buffer_size - 1)) { + HPI_DEBUG_LOG(ERROR, + "buffer size must be 2^N not %d\n", + phm->u.d.u.buffer.buffer_size); + phr->error = HPI_ERROR_INVALID_DATASIZE; + return; + } + phw->outstream_host_buffer_size[phm->obj_index] = + phm->u.d.u.buffer.buffer_size; + status = &interface->outstream_host_buffer_status[phm-> + obj_index]; + status->samples_processed = 0; + status->stream_state = HPI_STATE_STOPPED; + status->dSP_index = 0; + status->host_index = status->dSP_index; + status->size_in_bytes = phm->u.d.u.buffer.buffer_size; + + hw_message(pao, phm, phr); + + if (phr->error + && hpios_locked_mem_valid(&phw-> + outstream_host_buffers[phm->obj_index])) { + hpios_locked_mem_free(&phw->outstream_host_buffers + [phm->obj_index]); + phw->outstream_host_buffer_size[phm->obj_index] = 0; + } + } +} + +static void outstream_host_buffer_get_info(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + struct hpi_hw_obj *phw = pao->priv; + struct bus_master_interface *interface = phw->p_interface_buffer; + struct hpi_hostbuffer_status *status; + u8 *p_bbm_data; + + if (hpios_locked_mem_valid(&phw->outstream_host_buffers[phm-> + obj_index])) { + if (hpios_locked_mem_get_virt_addr(&phw-> + outstream_host_buffers[phm->obj_index], + (void *)&p_bbm_data)) { + phr->error = HPI_ERROR_INVALID_OPERATION; + return; + } + status = &interface->outstream_host_buffer_status[phm-> + obj_index]; + hpi_init_response(phr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_HOSTBUFFER_GET_INFO, 0); + phr->u.d.u.hostbuffer_info.p_buffer = p_bbm_data; + phr->u.d.u.hostbuffer_info.p_status = status; + } else { + hpi_init_response(phr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_HOSTBUFFER_GET_INFO, + HPI_ERROR_INVALID_OPERATION); + } +} + +static void outstream_host_buffer_free(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + struct hpi_hw_obj *phw = pao->priv; + u32 command = phm->u.d.u.buffer.command; + + if (phw->outstream_host_buffer_size[phm->obj_index]) { + if (command == HPI_BUFFER_CMD_EXTERNAL + || command == HPI_BUFFER_CMD_INTERNAL_REVOKEADAPTER) { + phw->outstream_host_buffer_size[phm->obj_index] = 0; + hw_message(pao, phm, phr); + /* Tell adapter to stop using the host buffer. */ + } + if (command == HPI_BUFFER_CMD_EXTERNAL + || command == HPI_BUFFER_CMD_INTERNAL_FREE) + hpios_locked_mem_free(&phw->outstream_host_buffers + [phm->obj_index]); + } + /* Should HPI_ERROR_INVALID_OPERATION be returned + if no host buffer is allocated? */ + else + hpi_init_response(phr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_HOSTBUFFER_FREE, 0); + +} + +static long outstream_get_space_available(struct hpi_hostbuffer_status + *status) +{ + return status->size_in_bytes - ((long)(status->host_index) - + (long)(status->dSP_index)); +} + +static void outstream_write(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + struct hpi_hw_obj *phw = pao->priv; + struct bus_master_interface *interface = phw->p_interface_buffer; + struct hpi_hostbuffer_status *status; + long space_available; + + if (!phw->outstream_host_buffer_size[phm->obj_index]) { + /* there is no BBM buffer, write via message */ + hw_message(pao, phm, phr); + return; + } + + hpi_init_response(phr, phm->object, phm->function, 0); + status = &interface->outstream_host_buffer_status[phm->obj_index]; + + if (phw->flag_outstream_just_reset[phm->obj_index]) { + /* Format can only change after reset. Must tell DSP. */ + u16 function = phm->function; + phw->flag_outstream_just_reset[phm->obj_index] = 0; + phm->function = HPI_OSTREAM_SET_FORMAT; + hw_message(pao, phm, phr); /* send the format to the DSP */ + phm->function = function; + if (phr->error) + return; + } +#if 1 + if (phw->flag_outstream_just_reset[phm->obj_index]) { + /* First OutStremWrite() call following reset will write data to the + adapter's buffers, reducing delay before stream can start + */ + int partial_write = 0; + unsigned int original_size = 0; + + /* Send the first buffer to the DSP the old way. */ + /* Limit size of first transfer - */ + /* expect that this will not usually be triggered. */ + if (phm->u.d.u.data.data_size > HPI6205_SIZEOF_DATA) { + partial_write = 1; + original_size = phm->u.d.u.data.data_size; + phm->u.d.u.data.data_size = HPI6205_SIZEOF_DATA; + } + /* write it */ + phm->function = HPI_OSTREAM_WRITE; + hw_message(pao, phm, phr); + /* update status information that the DSP would typically + * update (and will update next time the DSP + * buffer update task reads data from the host BBM buffer) + */ + status->auxiliary_data_available = phm->u.d.u.data.data_size; + status->host_index += phm->u.d.u.data.data_size; + status->dSP_index += phm->u.d.u.data.data_size; + + /* if we did a full write, we can return from here. */ + if (!partial_write) + return; + + /* tweak buffer parameters and let the rest of the */ + /* buffer land in internal BBM buffer */ + phm->u.d.u.data.data_size = + original_size - HPI6205_SIZEOF_DATA; + phm->u.d.u.data.pb_data += HPI6205_SIZEOF_DATA; + } +#endif + + space_available = outstream_get_space_available(status); + if (space_available < (long)phm->u.d.u.data.data_size) { + phr->error = HPI_ERROR_INVALID_DATASIZE; + return; + } + + /* HostBuffers is used to indicate host buffer is internally allocated. + otherwise, assumed external, data written externally */ + if (phm->u.d.u.data.pb_data + && hpios_locked_mem_valid(&phw->outstream_host_buffers[phm-> + obj_index])) { + u8 *p_bbm_data; + long l_first_write; + u8 *p_app_data = (u8 *)phm->u.d.u.data.pb_data; + + if (hpios_locked_mem_get_virt_addr(&phw-> + outstream_host_buffers[phm->obj_index], + (void *)&p_bbm_data)) { + phr->error = HPI_ERROR_INVALID_OPERATION; + return; + } + + /* either all data, + or enough to fit from current to end of BBM buffer */ + l_first_write = + min(phm->u.d.u.data.data_size, + status->size_in_bytes - + (status->host_index & (status->size_in_bytes - 1))); + + memcpy(p_bbm_data + + (status->host_index & (status->size_in_bytes - 1)), + p_app_data, l_first_write); + /* remaining data if any */ + memcpy(p_bbm_data, p_app_data + l_first_write, + phm->u.d.u.data.data_size - l_first_write); + } + status->host_index += phm->u.d.u.data.data_size; +} + +static void outstream_get_info(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + struct hpi_hw_obj *phw = pao->priv; + struct bus_master_interface *interface = phw->p_interface_buffer; + struct hpi_hostbuffer_status *status; + + if (!phw->outstream_host_buffer_size[phm->obj_index]) { + hw_message(pao, phm, phr); + return; + } + + hpi_init_response(phr, phm->object, phm->function, 0); + + status = &interface->outstream_host_buffer_status[phm->obj_index]; + + phr->u.d.u.stream_info.state = (u16)status->stream_state; + phr->u.d.u.stream_info.samples_transferred = + status->samples_processed; + phr->u.d.u.stream_info.buffer_size = status->size_in_bytes; + phr->u.d.u.stream_info.data_available = + status->size_in_bytes - outstream_get_space_available(status); + phr->u.d.u.stream_info.auxiliary_data_available = + status->auxiliary_data_available; +} + +static void outstream_start(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + hw_message(pao, phm, phr); +} + +static void outstream_reset(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + struct hpi_hw_obj *phw = pao->priv; + phw->flag_outstream_just_reset[phm->obj_index] = 1; + hw_message(pao, phm, phr); +} + +static void outstream_open(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + outstream_reset(pao, phm, phr); +} + +/*****************************************************************************/ +/* InStream Host buffer functions */ + +static void instream_host_buffer_allocate(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + u16 err = 0; + u32 command = phm->u.d.u.buffer.command; + struct hpi_hw_obj *phw = pao->priv; + struct bus_master_interface *interface = phw->p_interface_buffer; + + hpi_init_response(phr, phm->object, phm->function, 0); + + if (command == HPI_BUFFER_CMD_EXTERNAL + || command == HPI_BUFFER_CMD_INTERNAL_ALLOC) { + + phm->u.d.u.buffer.buffer_size = + roundup_pow_of_two(phm->u.d.u.buffer.buffer_size); + phr->u.d.u.stream_info.data_available = + phw->instream_host_buffer_size[phm->obj_index]; + phr->u.d.u.stream_info.buffer_size = + phm->u.d.u.buffer.buffer_size; + + if (phw->instream_host_buffer_size[phm->obj_index] == + phm->u.d.u.buffer.buffer_size) { + /* Same size, no action required */ + return; + } + + if (hpios_locked_mem_valid(&phw->instream_host_buffers[phm-> + obj_index])) + hpios_locked_mem_free(&phw->instream_host_buffers + [phm->obj_index]); + + err = hpios_locked_mem_alloc(&phw->instream_host_buffers[phm-> + obj_index], phm->u.d.u.buffer.buffer_size, + pao->pci.p_os_data); + + if (err) { + phr->error = HPI_ERROR_INVALID_DATASIZE; + phw->instream_host_buffer_size[phm->obj_index] = 0; + return; + } + + err = hpios_locked_mem_get_phys_addr + (&phw->instream_host_buffers[phm->obj_index], + &phm->u.d.u.buffer.pci_address); + /* get the phys addr into msg for single call alloc. Caller + needs to do this for split alloc so return the phy address */ + phr->u.d.u.stream_info.auxiliary_data_available = + phm->u.d.u.buffer.pci_address; + if (err) { + hpios_locked_mem_free(&phw->instream_host_buffers + [phm->obj_index]); + phw->instream_host_buffer_size[phm->obj_index] = 0; + phr->error = HPI_ERROR_MEMORY_ALLOC; + return; + } + } + + if (command == HPI_BUFFER_CMD_EXTERNAL + || command == HPI_BUFFER_CMD_INTERNAL_GRANTADAPTER) { + struct hpi_hostbuffer_status *status; + + if (phm->u.d.u.buffer.buffer_size & (phm->u.d.u.buffer. + buffer_size - 1)) { + HPI_DEBUG_LOG(ERROR, + "buffer size must be 2^N not %d\n", + phm->u.d.u.buffer.buffer_size); + phr->error = HPI_ERROR_INVALID_DATASIZE; + return; + } + + phw->instream_host_buffer_size[phm->obj_index] = + phm->u.d.u.buffer.buffer_size; + status = &interface->instream_host_buffer_status[phm-> + obj_index]; + status->samples_processed = 0; + status->stream_state = HPI_STATE_STOPPED; + status->dSP_index = 0; + status->host_index = status->dSP_index; + status->size_in_bytes = phm->u.d.u.buffer.buffer_size; + + hw_message(pao, phm, phr); + if (phr->error + && hpios_locked_mem_valid(&phw-> + instream_host_buffers[phm->obj_index])) { + hpios_locked_mem_free(&phw->instream_host_buffers + [phm->obj_index]); + phw->instream_host_buffer_size[phm->obj_index] = 0; + } + } +} + +static void instream_host_buffer_get_info(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + struct hpi_hw_obj *phw = pao->priv; + struct bus_master_interface *interface = phw->p_interface_buffer; + struct hpi_hostbuffer_status *status; + u8 *p_bbm_data; + + if (hpios_locked_mem_valid(&phw->instream_host_buffers[phm-> + obj_index])) { + if (hpios_locked_mem_get_virt_addr(&phw-> + instream_host_buffers[phm->obj_index], + (void *)&p_bbm_data)) { + phr->error = HPI_ERROR_INVALID_OPERATION; + return; + } + status = &interface->instream_host_buffer_status[phm-> + obj_index]; + hpi_init_response(phr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_HOSTBUFFER_GET_INFO, 0); + phr->u.d.u.hostbuffer_info.p_buffer = p_bbm_data; + phr->u.d.u.hostbuffer_info.p_status = status; + } else { + hpi_init_response(phr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_HOSTBUFFER_GET_INFO, + HPI_ERROR_INVALID_OPERATION); + } +} + +static void instream_host_buffer_free(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + struct hpi_hw_obj *phw = pao->priv; + u32 command = phm->u.d.u.buffer.command; + + if (phw->instream_host_buffer_size[phm->obj_index]) { + if (command == HPI_BUFFER_CMD_EXTERNAL + || command == HPI_BUFFER_CMD_INTERNAL_REVOKEADAPTER) { + phw->instream_host_buffer_size[phm->obj_index] = 0; + hw_message(pao, phm, phr); + } + + if (command == HPI_BUFFER_CMD_EXTERNAL + || command == HPI_BUFFER_CMD_INTERNAL_FREE) + hpios_locked_mem_free(&phw->instream_host_buffers + [phm->obj_index]); + + } else { + /* Should HPI_ERROR_INVALID_OPERATION be returned + if no host buffer is allocated? */ + hpi_init_response(phr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_HOSTBUFFER_FREE, 0); + + } + +} + +static void instream_start(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + hw_message(pao, phm, phr); +} + +static long instream_get_bytes_available(struct hpi_hostbuffer_status *status) +{ + return (long)(status->dSP_index) - (long)(status->host_index); +} + +static void instream_read(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + struct hpi_hw_obj *phw = pao->priv; + struct bus_master_interface *interface = phw->p_interface_buffer; + struct hpi_hostbuffer_status *status; + long data_available; + u8 *p_bbm_data; + long l_first_read; + u8 *p_app_data = (u8 *)phm->u.d.u.data.pb_data; + + if (!phw->instream_host_buffer_size[phm->obj_index]) { + hw_message(pao, phm, phr); + return; + } + hpi_init_response(phr, phm->object, phm->function, 0); + + status = &interface->instream_host_buffer_status[phm->obj_index]; + data_available = instream_get_bytes_available(status); + if (data_available < (long)phm->u.d.u.data.data_size) { + phr->error = HPI_ERROR_INVALID_DATASIZE; + return; + } + + if (hpios_locked_mem_valid(&phw->instream_host_buffers[phm-> + obj_index])) { + if (hpios_locked_mem_get_virt_addr(&phw-> + instream_host_buffers[phm->obj_index], + (void *)&p_bbm_data)) { + phr->error = HPI_ERROR_INVALID_OPERATION; + return; + } + + /* either all data, + or enough to fit from current to end of BBM buffer */ + l_first_read = + min(phm->u.d.u.data.data_size, + status->size_in_bytes - + (status->host_index & (status->size_in_bytes - 1))); + + memcpy(p_app_data, + p_bbm_data + + (status->host_index & (status->size_in_bytes - 1)), + l_first_read); + /* remaining data if any */ + memcpy(p_app_data + l_first_read, p_bbm_data, + phm->u.d.u.data.data_size - l_first_read); + } + status->host_index += phm->u.d.u.data.data_size; +} + +static void instream_get_info(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ + struct hpi_hw_obj *phw = pao->priv; + struct bus_master_interface *interface = phw->p_interface_buffer; + struct hpi_hostbuffer_status *status; + if (!phw->instream_host_buffer_size[phm->obj_index]) { + hw_message(pao, phm, phr); + return; + } + + status = &interface->instream_host_buffer_status[phm->obj_index]; + + hpi_init_response(phr, phm->object, phm->function, 0); + + phr->u.d.u.stream_info.state = (u16)status->stream_state; + phr->u.d.u.stream_info.samples_transferred = + status->samples_processed; + phr->u.d.u.stream_info.buffer_size = status->size_in_bytes; + phr->u.d.u.stream_info.data_available = + instream_get_bytes_available(status); + phr->u.d.u.stream_info.auxiliary_data_available = + status->auxiliary_data_available; +} + +/*****************************************************************************/ +/* LOW-LEVEL */ +#define HPI6205_MAX_FILES_TO_LOAD 2 + +static u16 adapter_boot_load_dsp(struct hpi_adapter_obj *pao, + u32 *pos_error_code) +{ + struct hpi_hw_obj *phw = pao->priv; + struct dsp_code dsp_code; + u16 boot_code_id[HPI6205_MAX_FILES_TO_LOAD]; + u16 firmware_id = pao->pci.subsys_device_id; + u32 temp; + int dsp = 0, i = 0; + u16 err = 0; + + boot_code_id[0] = HPI_ADAPTER_ASI(0x6205); + + /* special cases where firmware_id != subsys ID */ + switch (firmware_id) { + case HPI_ADAPTER_FAMILY_ASI(0x5000): + boot_code_id[0] = firmware_id; + firmware_id = 0; + break; + case HPI_ADAPTER_FAMILY_ASI(0x5300): + case HPI_ADAPTER_FAMILY_ASI(0x5400): + case HPI_ADAPTER_FAMILY_ASI(0x6300): + firmware_id = HPI_ADAPTER_FAMILY_ASI(0x6400); + break; + case HPI_ADAPTER_FAMILY_ASI(0x5600): + case HPI_ADAPTER_FAMILY_ASI(0x6500): + firmware_id = HPI_ADAPTER_FAMILY_ASI(0x6600); + break; + } + boot_code_id[1] = firmware_id; + + /* reset DSP by writing a 1 to the WARMRESET bit */ + temp = C6205_HDCR_WARMRESET; + iowrite32(temp, phw->prHDCR); + hpios_delay_micro_seconds(1000); + + /* check that PCI i/f was configured by EEPROM */ + temp = ioread32(phw->prHSR); + if ((temp & (C6205_HSR_CFGERR | C6205_HSR_EEREAD)) != + C6205_HSR_EEREAD) + return hpi6205_error(0, HPI6205_ERROR_6205_EEPROM); + temp |= 0x04; + /* disable PINTA interrupt */ + iowrite32(temp, phw->prHSR); + + /* check control register reports PCI boot mode */ + temp = ioread32(phw->prHDCR); + if (!(temp & C6205_HDCR_PCIBOOT)) + return hpi6205_error(0, HPI6205_ERROR_6205_REG); + + /* try writing a couple of numbers to the DSP page register */ + /* and reading them back. */ + temp = 1; + iowrite32(temp, phw->prDSPP); + if ((temp | C6205_DSPP_MAP1) != ioread32(phw->prDSPP)) + return hpi6205_error(0, HPI6205_ERROR_6205_DSPPAGE); + temp = 2; + iowrite32(temp, phw->prDSPP); + if ((temp | C6205_DSPP_MAP1) != ioread32(phw->prDSPP)) + return hpi6205_error(0, HPI6205_ERROR_6205_DSPPAGE); + temp = 3; + iowrite32(temp, phw->prDSPP); + if ((temp | C6205_DSPP_MAP1) != ioread32(phw->prDSPP)) + return hpi6205_error(0, HPI6205_ERROR_6205_DSPPAGE); + /* reset DSP page to the correct number */ + temp = 0; + iowrite32(temp, phw->prDSPP); + if ((temp | C6205_DSPP_MAP1) != ioread32(phw->prDSPP)) + return hpi6205_error(0, HPI6205_ERROR_6205_DSPPAGE); + phw->dsp_page = 0; + + /* release 6713 from reset before 6205 is bootloaded. + This ensures that the EMIF is inactive, + and the 6713 HPI gets the correct bootmode etc + */ + if (boot_code_id[1] != 0) { + /* DSP 1 is a C6713 */ + /* CLKX0 <- '1' release the C6205 bootmode pulldowns */ + boot_loader_write_mem32(pao, 0, (0x018C0024L), 0x00002202); + hpios_delay_micro_seconds(100); + /* Reset the 6713 #1 - revB */ + boot_loader_write_mem32(pao, 0, C6205_BAR0_TIMER1_CTL, 0); + + /* dummy read every 4 words for 6205 advisory 1.4.4 */ + boot_loader_read_mem32(pao, 0, 0); + + hpios_delay_micro_seconds(100); + /* Release C6713 from reset - revB */ + boot_loader_write_mem32(pao, 0, C6205_BAR0_TIMER1_CTL, 4); + hpios_delay_micro_seconds(100); + } + + for (dsp = 0; dsp < HPI6205_MAX_FILES_TO_LOAD; dsp++) { + /* is there a DSP to load? */ + if (boot_code_id[dsp] == 0) + continue; + + err = boot_loader_config_emif(pao, dsp); + if (err) + return err; + + err = boot_loader_test_internal_memory(pao, dsp); + if (err) + return err; + + err = boot_loader_test_external_memory(pao, dsp); + if (err) + return err; + + err = boot_loader_test_pld(pao, dsp); + if (err) + return err; + + /* write the DSP code down into the DSPs memory */ + dsp_code.ps_dev = pao->pci.p_os_data; + err = hpi_dsp_code_open(boot_code_id[dsp], &dsp_code, + pos_error_code); + if (err) + return err; + + while (1) { + u32 length; + u32 address; + u32 type; + u32 *pcode; + + err = hpi_dsp_code_read_word(&dsp_code, &length); + if (err) + break; + if (length == 0xFFFFFFFF) + break; /* end of code */ + + err = hpi_dsp_code_read_word(&dsp_code, &address); + if (err) + break; + err = hpi_dsp_code_read_word(&dsp_code, &type); + if (err) + break; + err = hpi_dsp_code_read_block(length, &dsp_code, + &pcode); + if (err) + break; + for (i = 0; i < (int)length; i++) { + err = boot_loader_write_mem32(pao, dsp, + address, *pcode); + if (err) + break; + /* dummy read every 4 words */ + /* for 6205 advisory 1.4.4 */ + if (i % 4 == 0) + boot_loader_read_mem32(pao, dsp, + address); + pcode++; + address += 4; + } + + } + if (err) { + hpi_dsp_code_close(&dsp_code); + return err; + } + + /* verify code */ + hpi_dsp_code_rewind(&dsp_code); + while (1) { + u32 length = 0; + u32 address = 0; + u32 type = 0; + u32 *pcode = NULL; + u32 data = 0; + + hpi_dsp_code_read_word(&dsp_code, &length); + if (length == 0xFFFFFFFF) + break; /* end of code */ + + hpi_dsp_code_read_word(&dsp_code, &address); + hpi_dsp_code_read_word(&dsp_code, &type); + hpi_dsp_code_read_block(length, &dsp_code, &pcode); + + for (i = 0; i < (int)length; i++) { + data = boot_loader_read_mem32(pao, dsp, + address); + if (data != *pcode) { + err = 0; + break; + } + pcode++; + address += 4; + } + if (err) + break; + } + hpi_dsp_code_close(&dsp_code); + if (err) + return err; + } + + /* After bootloading all DSPs, start DSP0 running + * The DSP0 code will handle starting and synchronizing with its slaves + */ + if (phw->p_interface_buffer) { + /* we need to tell the card the physical PCI address */ + u32 physicalPC_iaddress; + struct bus_master_interface *interface = + phw->p_interface_buffer; + u32 host_mailbox_address_on_dsp; + u32 physicalPC_iaddress_verify = 0; + int time_out = 10; + /* set ack so we know when DSP is ready to go */ + /* (dwDspAck will be changed to HIF_RESET) */ + interface->dsp_ack = H620_HIF_UNKNOWN; + wmb(); /* ensure ack is written before dsp writes back */ + + err = hpios_locked_mem_get_phys_addr(&phw->h_locked_mem, + &physicalPC_iaddress); + + /* locate the host mailbox on the DSP. */ + host_mailbox_address_on_dsp = 0x80000000; + while ((physicalPC_iaddress != physicalPC_iaddress_verify) + && time_out--) { + err = boot_loader_write_mem32(pao, 0, + host_mailbox_address_on_dsp, + physicalPC_iaddress); + physicalPC_iaddress_verify = + boot_loader_read_mem32(pao, 0, + host_mailbox_address_on_dsp); + } + } + HPI_DEBUG_LOG(DEBUG, "starting DS_ps running\n"); + /* enable interrupts */ + temp = ioread32(phw->prHSR); + temp &= ~(u32)C6205_HSR_INTAM; + iowrite32(temp, phw->prHSR); + + /* start code running... */ + temp = ioread32(phw->prHDCR); + temp |= (u32)C6205_HDCR_DSPINT; + iowrite32(temp, phw->prHDCR); + + /* give the DSP 10ms to start up */ + hpios_delay_micro_seconds(10000); + return err; + +} + +/*****************************************************************************/ +/* Bootloader utility functions */ + +static u32 boot_loader_read_mem32(struct hpi_adapter_obj *pao, int dsp_index, + u32 address) +{ + struct hpi_hw_obj *phw = pao->priv; + u32 data = 0; + __iomem u32 *p_data; + + if (dsp_index == 0) { + /* DSP 0 is always C6205 */ + if ((address >= 0x01800000) & (address < 0x02000000)) { + /* BAR1 register access */ + p_data = pao->pci.ap_mem_base[1] + + (address & 0x007fffff) / + sizeof(*pao->pci.ap_mem_base[1]); + /* HPI_DEBUG_LOG(WARNING, + "BAR1 access %08x\n", dwAddress); */ + } else { + u32 dw4M_page = address >> 22L; + if (dw4M_page != phw->dsp_page) { + phw->dsp_page = dw4M_page; + /* *INDENT OFF* */ + iowrite32(phw->dsp_page, phw->prDSPP); + /* *INDENT-ON* */ + } + address &= 0x3fffff; /* address within 4M page */ + /* BAR0 memory access */ + p_data = pao->pci.ap_mem_base[0] + + address / sizeof(u32); + } + data = ioread32(p_data); + } else if (dsp_index == 1) { + /* DSP 1 is a C6713 */ + u32 lsb; + boot_loader_write_mem32(pao, 0, HPIAL_ADDR, address); + boot_loader_write_mem32(pao, 0, HPIAH_ADDR, address >> 16); + lsb = boot_loader_read_mem32(pao, 0, HPIDL_ADDR); + data = boot_loader_read_mem32(pao, 0, HPIDH_ADDR); + data = (data << 16) | (lsb & 0xFFFF); + } + return data; +} + +static u16 boot_loader_write_mem32(struct hpi_adapter_obj *pao, int dsp_index, + u32 address, u32 data) +{ + struct hpi_hw_obj *phw = pao->priv; + u16 err = 0; + __iomem u32 *p_data; + /* u32 dwVerifyData=0; */ + + if (dsp_index == 0) { + /* DSP 0 is always C6205 */ + if ((address >= 0x01800000) & (address < 0x02000000)) { + /* BAR1 - DSP register access using */ + /* Non-prefetchable PCI access */ + p_data = pao->pci.ap_mem_base[1] + + (address & 0x007fffff) / + sizeof(*pao->pci.ap_mem_base[1]); + } else { + /* BAR0 access - all of DSP memory using */ + /* pre-fetchable PCI access */ + u32 dw4M_page = address >> 22L; + if (dw4M_page != phw->dsp_page) { + phw->dsp_page = dw4M_page; + /* *INDENT-OFF* */ + iowrite32(phw->dsp_page, phw->prDSPP); + /* *INDENT-ON* */ + } + address &= 0x3fffff; /* address within 4M page */ + p_data = pao->pci.ap_mem_base[0] + + address / sizeof(u32); + } + iowrite32(data, p_data); + } else if (dsp_index == 1) { + /* DSP 1 is a C6713 */ + boot_loader_write_mem32(pao, 0, HPIAL_ADDR, address); + boot_loader_write_mem32(pao, 0, HPIAH_ADDR, address >> 16); + + /* dummy read every 4 words for 6205 advisory 1.4.4 */ + boot_loader_read_mem32(pao, 0, 0); + + boot_loader_write_mem32(pao, 0, HPIDL_ADDR, data); + boot_loader_write_mem32(pao, 0, HPIDH_ADDR, data >> 16); + + /* dummy read every 4 words for 6205 advisory 1.4.4 */ + boot_loader_read_mem32(pao, 0, 0); + } else + err = hpi6205_error(dsp_index, HPI6205_ERROR_BAD_DSPINDEX); + return err; +} + +static u16 boot_loader_config_emif(struct hpi_adapter_obj *pao, int dsp_index) +{ + u16 err = 0; + + if (dsp_index == 0) { + u32 setting; + + /* DSP 0 is always C6205 */ + + /* Set the EMIF */ + /* memory map of C6205 */ + /* 00000000-0000FFFF 16Kx32 internal program */ + /* 00400000-00BFFFFF CE0 2Mx32 SDRAM running @ 100MHz */ + + /* EMIF config */ + /*------------ */ + /* Global EMIF control */ + boot_loader_write_mem32(pao, dsp_index, 0x01800000, 0x3779); +#define WS_OFS 28 +#define WST_OFS 22 +#define WH_OFS 20 +#define RS_OFS 16 +#define RST_OFS 8 +#define MTYPE_OFS 4 +#define RH_OFS 0 + + /* EMIF CE0 setup - 2Mx32 Sync DRAM on ASI5000 cards only */ + setting = 0x00000030; + boot_loader_write_mem32(pao, dsp_index, 0x01800008, setting); + if (setting != boot_loader_read_mem32(pao, dsp_index, + 0x01800008)) + return hpi6205_error(dsp_index, + HPI6205_ERROR_DSP_EMIF); + + /* EMIF CE1 setup - 32 bit async. This is 6713 #1 HPI, */ + /* which occupies D15..0. 6713 starts at 27MHz, so need */ + /* plenty of wait states. See dsn8701.rtf, and 6713 errata. */ + /* WST should be 71, but 63 is max possible */ + setting = + (1L << WS_OFS) | (63L << WST_OFS) | (1L << WH_OFS) | + (1L << RS_OFS) | (63L << RST_OFS) | (1L << RH_OFS) | + (2L << MTYPE_OFS); + boot_loader_write_mem32(pao, dsp_index, 0x01800004, setting); + if (setting != boot_loader_read_mem32(pao, dsp_index, + 0x01800004)) + return hpi6205_error(dsp_index, + HPI6205_ERROR_DSP_EMIF); + + /* EMIF CE2 setup - 32 bit async. This is 6713 #2 HPI, */ + /* which occupies D15..0. 6713 starts at 27MHz, so need */ + /* plenty of wait states */ + setting = + (1L << WS_OFS) | (28L << WST_OFS) | (1L << WH_OFS) | + (1L << RS_OFS) | (63L << RST_OFS) | (1L << RH_OFS) | + (2L << MTYPE_OFS); + boot_loader_write_mem32(pao, dsp_index, 0x01800010, setting); + if (setting != boot_loader_read_mem32(pao, dsp_index, + 0x01800010)) + return hpi6205_error(dsp_index, + HPI6205_ERROR_DSP_EMIF); + + /* EMIF CE3 setup - 32 bit async. */ + /* This is the PLD on the ASI5000 cards only */ + setting = + (1L << WS_OFS) | (10L << WST_OFS) | (1L << WH_OFS) | + (1L << RS_OFS) | (10L << RST_OFS) | (1L << RH_OFS) | + (2L << MTYPE_OFS); + boot_loader_write_mem32(pao, dsp_index, 0x01800014, setting); + if (setting != boot_loader_read_mem32(pao, dsp_index, + 0x01800014)) + return hpi6205_error(dsp_index, + HPI6205_ERROR_DSP_EMIF); + + /* set EMIF SDRAM control for 2Mx32 SDRAM (512x32x4 bank) */ + /* need to use this else DSP code crashes? */ + boot_loader_write_mem32(pao, dsp_index, 0x01800018, + 0x07117000); + + /* EMIF SDRAM Refresh Timing */ + /* EMIF SDRAM timing (orig = 0x410, emulator = 0x61a) */ + boot_loader_write_mem32(pao, dsp_index, 0x0180001C, + 0x00000410); + + } else if (dsp_index == 1) { + /* test access to the C6713s HPI registers */ + u32 write_data = 0, read_data = 0, i = 0; + + /* Set up HPIC for little endian, by setiing HPIC:HWOB=1 */ + write_data = 1; + boot_loader_write_mem32(pao, 0, HPICL_ADDR, write_data); + boot_loader_write_mem32(pao, 0, HPICH_ADDR, write_data); + /* C67 HPI is on lower 16bits of 32bit EMIF */ + read_data = + 0xFFF7 & boot_loader_read_mem32(pao, 0, HPICL_ADDR); + if (write_data != read_data) { + err = hpi6205_error(dsp_index, + HPI6205_ERROR_C6713_HPIC); + HPI_DEBUG_LOG(ERROR, "HPICL %x %x\n", write_data, + read_data); + + return err; + } + /* HPIA - walking ones test */ + write_data = 1; + for (i = 0; i < 32; i++) { + boot_loader_write_mem32(pao, 0, HPIAL_ADDR, + write_data); + boot_loader_write_mem32(pao, 0, HPIAH_ADDR, + (write_data >> 16)); + read_data = + 0xFFFF & boot_loader_read_mem32(pao, 0, + HPIAL_ADDR); + read_data = + read_data | ((0xFFFF & + boot_loader_read_mem32(pao, 0, + HPIAH_ADDR)) + << 16); + if (read_data != write_data) { + err = hpi6205_error(dsp_index, + HPI6205_ERROR_C6713_HPIA); + HPI_DEBUG_LOG(ERROR, "HPIA %x %x\n", + write_data, read_data); + return err; + } + write_data = write_data << 1; + } + + /* setup C67x PLL + * ** C6713 datasheet says we cannot program PLL from HPI, + * and indeed if we try to set the PLL multiply from the HPI, + * the PLL does not seem to lock, so we enable the PLL and + * use the default multiply of x 7, which for a 27MHz clock + * gives a DSP speed of 189MHz + */ + /* bypass PLL */ + boot_loader_write_mem32(pao, dsp_index, 0x01B7C100, 0x0000); + hpios_delay_micro_seconds(1000); + /* EMIF = 189/3=63MHz */ + boot_loader_write_mem32(pao, dsp_index, 0x01B7C120, 0x8002); + /* peri = 189/2 */ + boot_loader_write_mem32(pao, dsp_index, 0x01B7C11C, 0x8001); + /* cpu = 189/1 */ + boot_loader_write_mem32(pao, dsp_index, 0x01B7C118, 0x8000); + hpios_delay_micro_seconds(1000); + /* ** SGT test to take GPO3 high when we start the PLL */ + /* and low when the delay is completed */ + /* FSX0 <- '1' (GPO3) */ + boot_loader_write_mem32(pao, 0, (0x018C0024L), 0x00002A0A); + /* PLL not bypassed */ + boot_loader_write_mem32(pao, dsp_index, 0x01B7C100, 0x0001); + hpios_delay_micro_seconds(1000); + /* FSX0 <- '0' (GPO3) */ + boot_loader_write_mem32(pao, 0, (0x018C0024L), 0x00002A02); + + /* 6205 EMIF CE1 resetup - 32 bit async. */ + /* Now 6713 #1 is running at 189MHz can reduce waitstates */ + boot_loader_write_mem32(pao, 0, 0x01800004, /* CE1 */ + (1L << WS_OFS) | (8L << WST_OFS) | (1L << WH_OFS) | + (1L << RS_OFS) | (12L << RST_OFS) | (1L << RH_OFS) | + (2L << MTYPE_OFS)); + + hpios_delay_micro_seconds(1000); + + /* check that we can read one of the PLL registers */ + /* PLL should not be bypassed! */ + if ((boot_loader_read_mem32(pao, dsp_index, 0x01B7C100) & 0xF) + != 0x0001) { + err = hpi6205_error(dsp_index, + HPI6205_ERROR_C6713_PLL); + return err; + } + /* setup C67x EMIF (note this is the only use of + BAR1 via BootLoader_WriteMem32) */ + boot_loader_write_mem32(pao, dsp_index, C6713_EMIF_GCTL, + 0x000034A8); + boot_loader_write_mem32(pao, dsp_index, C6713_EMIF_CE0, + 0x00000030); + boot_loader_write_mem32(pao, dsp_index, C6713_EMIF_SDRAMEXT, + 0x001BDF29); + boot_loader_write_mem32(pao, dsp_index, C6713_EMIF_SDRAMCTL, + 0x47117000); + boot_loader_write_mem32(pao, dsp_index, + C6713_EMIF_SDRAMTIMING, 0x00000410); + + hpios_delay_micro_seconds(1000); + } else if (dsp_index == 2) { + /* DSP 2 is a C6713 */ + + } else + err = hpi6205_error(dsp_index, HPI6205_ERROR_BAD_DSPINDEX); + return err; +} + +static u16 boot_loader_test_memory(struct hpi_adapter_obj *pao, int dsp_index, + u32 start_address, u32 length) +{ + u32 i = 0, j = 0; + u32 test_addr = 0; + u32 test_data = 0, data = 0; + + length = 1000; + + /* for 1st word, test each bit in the 32bit word, */ + /* dwLength specifies number of 32bit words to test */ + /*for(i=0; ipci.subsys_device_id == 0x5000) { + /* DSP 0 is always C6205 */ + dRAM_start_address = 0x00400000; + dRAM_size = 0x200000; + /*dwDRAMinc=1024; */ + } else + return 0; + } else if ((dsp_index == 1) || (dsp_index == 2)) { + /* DSP 1 is a C6713 */ + dRAM_start_address = 0x80000000; + dRAM_size = 0x200000; + /*dwDRAMinc=1024; */ + } else + return hpi6205_error(dsp_index, HPI6205_ERROR_BAD_DSPINDEX); + + if (boot_loader_test_memory(pao, dsp_index, dRAM_start_address, + dRAM_size)) + return hpi6205_error(dsp_index, HPI6205_ERROR_DSP_EXTMEM); + return 0; +} + +static u16 boot_loader_test_pld(struct hpi_adapter_obj *pao, int dsp_index) +{ + u32 data = 0; + if (dsp_index == 0) { + /* only test for DSP0 PLD on ASI5000 card */ + if (pao->pci.subsys_device_id == 0x5000) { + /* PLD is located at CE3=0x03000000 */ + data = boot_loader_read_mem32(pao, dsp_index, + 0x03000008); + if ((data & 0xF) != 0x5) + return hpi6205_error(dsp_index, + HPI6205_ERROR_DSP_PLD); + data = boot_loader_read_mem32(pao, dsp_index, + 0x0300000C); + if ((data & 0xF) != 0xA) + return hpi6205_error(dsp_index, + HPI6205_ERROR_DSP_PLD); + } + } else if (dsp_index == 1) { + /* DSP 1 is a C6713 */ + if (pao->pci.subsys_device_id == 0x8700) { + /* PLD is located at CE1=0x90000000 */ + data = boot_loader_read_mem32(pao, dsp_index, + 0x90000010); + if ((data & 0xFF) != 0xAA) + return hpi6205_error(dsp_index, + HPI6205_ERROR_DSP_PLD); + /* 8713 - LED on */ + boot_loader_write_mem32(pao, dsp_index, 0x90000000, + 0x02); + } + } + return 0; +} + +/** Transfer data to or from DSP + nOperation = H620_H620_HIF_SEND_DATA or H620_HIF_GET_DATA +*/ +static short hpi6205_transfer_data(struct hpi_adapter_obj *pao, u8 *p_data, + u32 data_size, int operation) +{ + struct hpi_hw_obj *phw = pao->priv; + u32 data_transferred = 0; + u16 err = 0; +#ifndef HPI6205_NO_HSR_POLL + u32 time_out; +#endif + u32 temp2; + struct bus_master_interface *interface = phw->p_interface_buffer; + + if (!p_data) + return HPI_ERROR_INVALID_DATA_TRANSFER; + + data_size &= ~3L; /* round data_size down to nearest 4 bytes */ + + /* make sure state is IDLE */ + if (!wait_dsp_ack(phw, H620_HIF_IDLE, HPI6205_TIMEOUT)) + return HPI_ERROR_DSP_HARDWARE; + + while (data_transferred < data_size) { + u32 this_copy = data_size - data_transferred; + + if (this_copy > HPI6205_SIZEOF_DATA) + this_copy = HPI6205_SIZEOF_DATA; + + if (operation == H620_HIF_SEND_DATA) + memcpy((void *)&interface->u.b_data[0], + &p_data[data_transferred], this_copy); + + interface->transfer_size_in_bytes = this_copy; + +#ifdef HPI6205_NO_HSR_POLL + /* DSP must change this back to nOperation */ + interface->dsp_ack = H620_HIF_IDLE; +#endif + + send_dsp_command(phw, operation); + +#ifdef HPI6205_NO_HSR_POLL + temp2 = wait_dsp_ack(phw, operation, HPI6205_TIMEOUT); + HPI_DEBUG_LOG(DEBUG, "spun %d times for data xfer of %d\n", + HPI6205_TIMEOUT - temp2, this_copy); + + if (!temp2) { + /* timed out */ + HPI_DEBUG_LOG(ERROR, + "timed out waiting for " "state %d got %d\n", + operation, interface->dsp_ack); + + break; + } +#else + /* spin waiting on the result */ + time_out = HPI6205_TIMEOUT; + temp2 = 0; + while ((temp2 == 0) && time_out--) { + /* give 16k bus mastering transfer time to happen */ + /*(16k / 132Mbytes/s = 122usec) */ + hpios_delay_micro_seconds(20); + temp2 = ioread32(phw->prHSR); + temp2 &= C6205_HSR_INTSRC; + } + HPI_DEBUG_LOG(DEBUG, "spun %d times for data xfer of %d\n", + HPI6205_TIMEOUT - time_out, this_copy); + if (temp2 == C6205_HSR_INTSRC) { + HPI_DEBUG_LOG(VERBOSE, + "interrupt from HIF OK\n"); + /* + if(interface->dwDspAck != nOperation) { + HPI_DEBUG_LOG(DEBUG("interface->dwDspAck=%d, + expected %d \n", + interface->dwDspAck,nOperation); + } + */ + } +/* need to handle this differently... */ + else { + HPI_DEBUG_LOG(ERROR, + "interrupt from HIF BAD\n"); + err = HPI_ERROR_DSP_HARDWARE; + } + + /* reset the interrupt from the DSP */ + iowrite32(C6205_HSR_INTSRC, phw->prHSR); +#endif + if (operation == H620_HIF_GET_DATA) + memcpy(&p_data[data_transferred], + (void *)&interface->u.b_data[0], this_copy); + + data_transferred += this_copy; + } + if (interface->dsp_ack != operation) + HPI_DEBUG_LOG(DEBUG, "interface->dsp_ack=%d, expected %d\n", + interface->dsp_ack, operation); + /* err=HPI_ERROR_DSP_HARDWARE; */ + + send_dsp_command(phw, H620_HIF_IDLE); + + return err; +} + +/* wait for up to timeout_us microseconds for the DSP + to signal state by DMA into dwDspAck +*/ +static int wait_dsp_ack(struct hpi_hw_obj *phw, int state, int timeout_us) +{ + struct bus_master_interface *interface = phw->p_interface_buffer; + int t = timeout_us / 4; + + rmb(); /* ensure interface->dsp_ack is up to date */ + while ((interface->dsp_ack != state) && --t) { + hpios_delay_micro_seconds(4); + rmb(); /* DSP changes dsp_ack by DMA */ + } + + /*HPI_DEBUG_LOG(VERBOSE, "Spun %d for %d\n", timeout_us/4-t, state); */ + return t * 4; +} + +/* set the busmaster interface to cmd, then interrupt the DSP */ +static void send_dsp_command(struct hpi_hw_obj *phw, int cmd) +{ + struct bus_master_interface *interface = phw->p_interface_buffer; + + u32 r; + + interface->host_cmd = cmd; + wmb(); /* DSP gets state by DMA, make sure it is written to memory */ + /* before we interrupt the DSP */ + r = ioread32(phw->prHDCR); + r |= (u32)C6205_HDCR_DSPINT; + iowrite32(r, phw->prHDCR); + r &= ~(u32)C6205_HDCR_DSPINT; + iowrite32(r, phw->prHDCR); +} + +static unsigned int message_count; + +static u16 message_response_sequence(struct hpi_adapter_obj *pao, + struct hpi_message *phm, struct hpi_response *phr) +{ +#ifndef HPI6205_NO_HSR_POLL + u32 temp2; +#endif + u32 time_out, time_out2; + struct hpi_hw_obj *phw = pao->priv; + struct bus_master_interface *interface = phw->p_interface_buffer; + u16 err = 0; + + message_count++; + /* Assume buffer of type struct bus_master_interface + is allocated "noncacheable" */ + + if (!wait_dsp_ack(phw, H620_HIF_IDLE, HPI6205_TIMEOUT)) { + HPI_DEBUG_LOG(DEBUG, "timeout waiting for idle\n"); + return hpi6205_error(0, HPI6205_ERROR_MSG_RESP_IDLE_TIMEOUT); + } + interface->u.message_buffer = *phm; + /* signal we want a response */ + send_dsp_command(phw, H620_HIF_GET_RESP); + + time_out2 = wait_dsp_ack(phw, H620_HIF_GET_RESP, HPI6205_TIMEOUT); + + if (time_out2 == 0) { + HPI_DEBUG_LOG(ERROR, + "(%u) timed out waiting for " "GET_RESP state [%x]\n", + message_count, interface->dsp_ack); + } else { + HPI_DEBUG_LOG(VERBOSE, + "(%u) transition to GET_RESP after %u\n", + message_count, HPI6205_TIMEOUT - time_out2); + } + /* spin waiting on HIF interrupt flag (end of msg process) */ + time_out = HPI6205_TIMEOUT; + +#ifndef HPI6205_NO_HSR_POLL + temp2 = 0; + while ((temp2 == 0) && --time_out) { + temp2 = ioread32(phw->prHSR); + temp2 &= C6205_HSR_INTSRC; + hpios_delay_micro_seconds(1); + } + if (temp2 == C6205_HSR_INTSRC) { + rmb(); /* ensure we see latest value for dsp_ack */ + if ((interface->dsp_ack != H620_HIF_GET_RESP)) { + HPI_DEBUG_LOG(DEBUG, + "(%u)interface->dsp_ack(0x%x) != " + "H620_HIF_GET_RESP, t=%u\n", message_count, + interface->dsp_ack, + HPI6205_TIMEOUT - time_out); + } else { + HPI_DEBUG_LOG(VERBOSE, + "(%u)int with GET_RESP after %u\n", + message_count, HPI6205_TIMEOUT - time_out); + } + + } else { + /* can we do anything else in response to the error ? */ + HPI_DEBUG_LOG(ERROR, + "interrupt from HIF module BAD (function %x)\n", + phm->function); + } + + /* reset the interrupt from the DSP */ + iowrite32(C6205_HSR_INTSRC, phw->prHSR); +#endif + + /* read the result */ + if (time_out != 0) + *phr = interface->u.response_buffer; + + /* set interface back to idle */ + send_dsp_command(phw, H620_HIF_IDLE); + + if ((time_out == 0) || (time_out2 == 0)) { + HPI_DEBUG_LOG(DEBUG, "something timed out!\n"); + return hpi6205_error(0, HPI6205_ERROR_MSG_RESP_TIMEOUT); + } + /* special case for adapter close - */ + /* wait for the DSP to indicate it is idle */ + if (phm->function == HPI_ADAPTER_CLOSE) { + if (!wait_dsp_ack(phw, H620_HIF_IDLE, HPI6205_TIMEOUT)) { + HPI_DEBUG_LOG(DEBUG, + "timeout waiting for idle " + "(on adapter_close)\n"); + return hpi6205_error(0, + HPI6205_ERROR_MSG_RESP_IDLE_TIMEOUT); + } + } + err = hpi_validate_response(phm, phr); + return err; +} + +static void hw_message(struct hpi_adapter_obj *pao, struct hpi_message *phm, + struct hpi_response *phr) +{ + + u16 err = 0; + + hpios_dsplock_lock(pao); + + err = message_response_sequence(pao, phm, phr); + + /* maybe an error response */ + if (err) { + /* something failed in the HPI/DSP interface */ + phr->error = err; + pao->dsp_crashed++; + + /* just the header of the response is valid */ + phr->size = sizeof(struct hpi_response_header); + goto err; + } else + pao->dsp_crashed = 0; + + if (phr->error != 0) /* something failed in the DSP */ + goto err; + + switch (phm->function) { + case HPI_OSTREAM_WRITE: + case HPI_ISTREAM_ANC_WRITE: + err = hpi6205_transfer_data(pao, phm->u.d.u.data.pb_data, + phm->u.d.u.data.data_size, H620_HIF_SEND_DATA); + break; + + case HPI_ISTREAM_READ: + case HPI_OSTREAM_ANC_READ: + err = hpi6205_transfer_data(pao, phm->u.d.u.data.pb_data, + phm->u.d.u.data.data_size, H620_HIF_GET_DATA); + break; + + case HPI_CONTROL_SET_STATE: + if (phm->object == HPI_OBJ_CONTROLEX + && phm->u.cx.attribute == HPI_COBRANET_SET_DATA) + err = hpi6205_transfer_data(pao, + phm->u.cx.u.cobranet_bigdata.pb_data, + phm->u.cx.u.cobranet_bigdata.byte_count, + H620_HIF_SEND_DATA); + break; + + case HPI_CONTROL_GET_STATE: + if (phm->object == HPI_OBJ_CONTROLEX + && phm->u.cx.attribute == HPI_COBRANET_GET_DATA) + err = hpi6205_transfer_data(pao, + phm->u.cx.u.cobranet_bigdata.pb_data, + phr->u.cx.u.cobranet_data.byte_count, + H620_HIF_GET_DATA); + break; + } + phr->error = err; + +err: + hpios_dsplock_unlock(pao); + + return; +} diff --git a/sound/pci/asihpi/hpi6205.h b/sound/pci/asihpi/hpi6205.h new file mode 100644 index 00000000000..1adae0857cd --- /dev/null +++ b/sound/pci/asihpi/hpi6205.h @@ -0,0 +1,93 @@ +/***************************************************************************** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +Host Interface module for an ASI6205 based +bus mastering PCI adapter. + +Copyright AudioScience, Inc., 2003 +******************************************************************************/ + +#ifndef _HPI6205_H_ +#define _HPI6205_H_ + +/* transitional conditional compile shared between host and DSP */ +/* #define HPI6205_NO_HSR_POLL */ + +#include "hpi_internal.h" + +/*********************************************************** + Defines used for basic messaging +************************************************************/ +#define H620_HIF_RESET 0 +#define H620_HIF_IDLE 1 +#define H620_HIF_GET_RESP 2 +#define H620_HIF_DATA_DONE 3 +#define H620_HIF_DATA_MASK 0x10 +#define H620_HIF_SEND_DATA 0x14 +#define H620_HIF_GET_DATA 0x15 +#define H620_HIF_UNKNOWN 0x0000ffff + +/*********************************************************** + Types used for mixer control caching +************************************************************/ + +#define H620_MAX_ISTREAMS 32 +#define H620_MAX_OSTREAMS 32 +#define HPI_NMIXER_CONTROLS 2048 + +/********************************************************************* +This is used for dynamic control cache allocation +**********************************************************************/ +struct controlcache_6205 { + u32 number_of_controls; + u32 physical_address32; + u32 size_in_bytes; +}; + +/********************************************************************* +This is used for dynamic allocation of async event array +**********************************************************************/ +struct async_event_buffer_6205 { + u32 physical_address32; + u32 spare; + struct hpi_fifo_buffer b; +}; + +/*********************************************************** +The Host located memory buffer that the 6205 will bus master +in and out of. +************************************************************/ +#define HPI6205_SIZEOF_DATA (16*1024) +struct bus_master_interface { + u32 host_cmd; + u32 dsp_ack; + u32 transfer_size_in_bytes; + union { + struct hpi_message message_buffer; + struct hpi_response response_buffer; + u8 b_data[HPI6205_SIZEOF_DATA]; + } u; + struct controlcache_6205 control_cache; + struct async_event_buffer_6205 async_buffer; + struct hpi_hostbuffer_status + instream_host_buffer_status[H620_MAX_ISTREAMS]; + struct hpi_hostbuffer_status + outstream_host_buffer_status[H620_MAX_OSTREAMS]; +}; + +#endif diff --git a/sound/pci/asihpi/hpi_internal.h b/sound/pci/asihpi/hpi_internal.h new file mode 100644 index 00000000000..f1cd6f1a0d4 --- /dev/null +++ b/sound/pci/asihpi/hpi_internal.h @@ -0,0 +1,1641 @@ +/****************************************************************************** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +HPI internal definitions + +(C) Copyright AudioScience Inc. 1996-2009 +******************************************************************************/ + +#ifndef _HPI_INTERNAL_H_ +#define _HPI_INTERNAL_H_ + +#include "hpi.h" +/** maximum number of memory regions mapped to an adapter */ +#define HPI_MAX_ADAPTER_MEM_SPACES (2) + +/* Each OS needs its own hpios.h, or specific define as above */ +#include "hpios.h" + +/* physical memory allocation */ +void hpios_locked_mem_init(void + ); +void hpios_locked_mem_free_all(void + ); +#define hpios_locked_mem_prepare(a, b, c, d); +#define hpios_locked_mem_unprepare(a) + +/** Allocate and map an area of locked memory for bus master DMA operations. + +On success, *pLockedMemeHandle is a valid handle, and 0 is returned +On error *pLockedMemHandle marked invalid, non-zero returned. + +If this function succeeds, then HpiOs_LockedMem_GetVirtAddr() and +HpiOs_LockedMem_GetPyhsAddr() will always succed on the returned handle. +*/ +u16 hpios_locked_mem_alloc(struct consistent_dma_area *p_locked_mem_handle, + /**< memory handle */ + u32 size, /**< size in bytes to allocate */ + struct pci_dev *p_os_reference + /**< OS specific data required for memory allocation */ + ); + +/** Free mapping and memory represented by LockedMemHandle + +Frees any resources, then invalidates the handle. +Returns 0 on success, 1 if handle is invalid. + +*/ +u16 hpios_locked_mem_free(struct consistent_dma_area *locked_mem_handle); + +/** Get the physical PCI address of memory represented by LockedMemHandle. + +If handle is invalid *pPhysicalAddr is set to zero and return 1 +*/ +u16 hpios_locked_mem_get_phys_addr(struct consistent_dma_area + *locked_mem_handle, u32 *p_physical_addr); + +/** Get the CPU address of of memory represented by LockedMemHandle. + +If handle is NULL *ppvVirtualAddr is set to NULL and return 1 +*/ +u16 hpios_locked_mem_get_virt_addr(struct consistent_dma_area + *locked_mem_handle, void **ppv_virtual_addr); + +/** Check that handle is valid +i.e it represents a valid memory area +*/ +u16 hpios_locked_mem_valid(struct consistent_dma_area *locked_mem_handle); + +/* timing/delay */ +void hpios_delay_micro_seconds(u32 num_micro_sec); + +struct hpi_message; +struct hpi_response; + +typedef void hpi_handler_func(struct hpi_message *, struct hpi_response *); + +/* If the assert fails, compiler complains + something like size of array `msg' is negative. + Unlike linux BUILD_BUG_ON, this works outside function scope. +*/ +#define compile_time_assert(cond, msg) \ + typedef char ASSERT_##msg[(cond) ? 1 : -1] + +/*/////////////////////////////////////////////////////////////////////////// */ +/* Private HPI Entity related definitions */ + +#define STR_SIZE_FIELD_MAX 65535U +#define STR_TYPE_FIELD_MAX 255U +#define STR_ROLE_FIELD_MAX 255U + +struct hpi_entity_str { + uint16_t size; + uint8_t type; + uint8_t role; +}; + +#if defined(_MSC_VER) +#pragma warning(push) +#pragma warning(disable : 4200) +#endif + +struct hpi_entity { + struct hpi_entity_str header; +#if ! defined(HPI_OS_DSP_C6000) || (defined(HPI_OS_DSP_C6000) && (__TI_COMPILER_VERSION__ > 6000008)) + /* DSP C6000 compiler v6.0.8 and lower + do not support flexible array member */ + uint8_t value[]; +#else + /* NOTE! Using sizeof(struct hpi_entity) will give erroneous results */ +#define HPI_INTERNAL_WARN_ABOUT_ENTITY_VALUE + uint8_t value[1]; +#endif +}; + +#if defined(_MSC_VER) +#pragma warning(pop) +#endif + +/******************************************* bus types */ +enum HPI_BUSES { + HPI_BUS_ISAPNP = 1, + HPI_BUS_PCI = 2, + HPI_BUS_USB = 3, + HPI_BUS_NET = 4 +}; + +/******************************************* CONTROL ATTRIBUTES ****/ +/* (in order of control type ID */ + + /* This allows for 255 control types, 256 unique attributes each */ +#define HPI_CTL_ATTR(ctl, ai) (HPI_CONTROL_##ctl * 0x100 + ai) + +/* Get the sub-index of the attribute for a control type */ +#define HPI_CTL_ATTR_INDEX(i) (i&0xff) + +/* Generic control attributes. */ + +/** Enable a control. +0=disable, 1=enable +\note generic to all mixer plugins? +*/ +#define HPI_GENERIC_ENABLE HPI_CTL_ATTR(GENERIC, 1) + +/** Enable event generation for a control. +0=disable, 1=enable +\note generic to all controls that can generate events +*/ +#define HPI_GENERIC_EVENT_ENABLE HPI_CTL_ATTR(GENERIC, 2) + +/* Volume Control attributes */ +#define HPI_VOLUME_GAIN HPI_CTL_ATTR(VOLUME, 1) +#define HPI_VOLUME_AUTOFADE HPI_CTL_ATTR(VOLUME, 2) + +/** For HPI_ControlQuery() to get the number of channels of a volume control*/ +#define HPI_VOLUME_NUM_CHANNELS HPI_CTL_ATTR(VOLUME, 6) +#define HPI_VOLUME_RANGE HPI_CTL_ATTR(VOLUME, 10) + +/** Level Control attributes */ +#define HPI_LEVEL_GAIN HPI_CTL_ATTR(LEVEL, 1) +#define HPI_LEVEL_RANGE HPI_CTL_ATTR(LEVEL, 10) + +/* Meter Control attributes */ +/** return RMS signal level */ +#define HPI_METER_RMS HPI_CTL_ATTR(METER, 1) +/** return peak signal level */ +#define HPI_METER_PEAK HPI_CTL_ATTR(METER, 2) +/** ballistics for ALL rms meters on adapter */ +#define HPI_METER_RMS_BALLISTICS HPI_CTL_ATTR(METER, 3) +/** ballistics for ALL peak meters on adapter */ +#define HPI_METER_PEAK_BALLISTICS HPI_CTL_ATTR(METER, 4) + +/** For HPI_ControlQuery() to get the number of channels of a meter control*/ +#define HPI_METER_NUM_CHANNELS HPI_CTL_ATTR(METER, 5) + +/* Multiplexer control attributes */ +#define HPI_MULTIPLEXER_SOURCE HPI_CTL_ATTR(MULTIPLEXER, 1) +#define HPI_MULTIPLEXER_QUERYSOURCE HPI_CTL_ATTR(MULTIPLEXER, 2) + +/** AES/EBU transmitter control attributes */ +/** AESEBU or SPDIF */ +#define HPI_AESEBUTX_FORMAT HPI_CTL_ATTR(AESEBUTX, 1) +#define HPI_AESEBUTX_SAMPLERATE HPI_CTL_ATTR(AESEBUTX, 3) +#define HPI_AESEBUTX_CHANNELSTATUS HPI_CTL_ATTR(AESEBUTX, 4) +#define HPI_AESEBUTX_USERDATA HPI_CTL_ATTR(AESEBUTX, 5) + +/** AES/EBU receiver control attributes */ +#define HPI_AESEBURX_FORMAT HPI_CTL_ATTR(AESEBURX, 1) +#define HPI_AESEBURX_ERRORSTATUS HPI_CTL_ATTR(AESEBURX, 2) +#define HPI_AESEBURX_SAMPLERATE HPI_CTL_ATTR(AESEBURX, 3) +#define HPI_AESEBURX_CHANNELSTATUS HPI_CTL_ATTR(AESEBURX, 4) +#define HPI_AESEBURX_USERDATA HPI_CTL_ATTR(AESEBURX, 5) + +/** \defgroup tuner_defs Tuners +\{ +*/ +/** \defgroup tuner_attrs Tuner control attributes +\{ +*/ +#define HPI_TUNER_BAND HPI_CTL_ATTR(TUNER, 1) +#define HPI_TUNER_FREQ HPI_CTL_ATTR(TUNER, 2) +#define HPI_TUNER_LEVEL HPI_CTL_ATTR(TUNER, 3) +#define HPI_TUNER_AUDIOMUTE HPI_CTL_ATTR(TUNER, 4) +/* use TUNER_STATUS instead */ +#define HPI_TUNER_VIDEO_STATUS HPI_CTL_ATTR(TUNER, 5) +#define HPI_TUNER_GAIN HPI_CTL_ATTR(TUNER, 6) +#define HPI_TUNER_STATUS HPI_CTL_ATTR(TUNER, 7) +#define HPI_TUNER_MODE HPI_CTL_ATTR(TUNER, 8) +/** RDS data. */ +#define HPI_TUNER_RDS HPI_CTL_ATTR(TUNER, 9) +/** Audio pre-emphasis. */ +#define HPI_TUNER_DEEMPHASIS HPI_CTL_ATTR(TUNER, 10) +/** HD Radio tuner program control. */ +#define HPI_TUNER_PROGRAM HPI_CTL_ATTR(TUNER, 11) +/** HD Radio tuner digital signal quality. */ +#define HPI_TUNER_HDRADIO_SIGNAL_QUALITY HPI_CTL_ATTR(TUNER, 12) +/** HD Radio SDK firmware version. */ +#define HPI_TUNER_HDRADIO_SDK_VERSION HPI_CTL_ATTR(TUNER, 13) +/** HD Radio DSP firmware version. */ +#define HPI_TUNER_HDRADIO_DSP_VERSION HPI_CTL_ATTR(TUNER, 14) + +/** \} */ + +/** \defgroup pads_attrs Tuner PADs control attributes +\{ +*/ +/** The text string containing the station/channel combination. */ +#define HPI_PAD_CHANNEL_NAME HPI_CTL_ATTR(PAD, 1) +/** The text string containing the artist. */ +#define HPI_PAD_ARTIST HPI_CTL_ATTR(PAD, 2) +/** The text string containing the title. */ +#define HPI_PAD_TITLE HPI_CTL_ATTR(PAD, 3) +/** The text string containing the comment. */ +#define HPI_PAD_COMMENT HPI_CTL_ATTR(PAD, 4) +/** The integer containing the PTY code. */ +#define HPI_PAD_PROGRAM_TYPE HPI_CTL_ATTR(PAD, 5) +/** The integer containing the program identification. */ +#define HPI_PAD_PROGRAM_ID HPI_CTL_ATTR(PAD, 6) +/** The integer containing whether traffic information is supported. +Contains either 1 or 0. */ +#define HPI_PAD_TA_SUPPORT HPI_CTL_ATTR(PAD, 7) +/** The integer containing whether traffic announcement is in progress. +Contains either 1 or 0. */ +#define HPI_PAD_TA_ACTIVE HPI_CTL_ATTR(PAD, 8) +/** \} */ +/** \} */ + +/* VOX control attributes */ +#define HPI_VOX_THRESHOLD HPI_CTL_ATTR(VOX, 1) + +/*?? channel mode used hpi_multiplexer_source attribute == 1 */ +#define HPI_CHANNEL_MODE_MODE HPI_CTL_ATTR(CHANNEL_MODE, 1) + +/** \defgroup channel_modes Channel Modes +Used for HPI_ChannelModeSet/Get() +\{ +*/ +/** Left channel out = left channel in, Right channel out = right channel in. */ +#define HPI_CHANNEL_MODE_NORMAL 1 +/** Left channel out = right channel in, Right channel out = left channel in. */ +#define HPI_CHANNEL_MODE_SWAP 2 +/** Left channel out = left channel in, Right channel out = left channel in. */ +#define HPI_CHANNEL_MODE_LEFT_TO_STEREO 3 +/** Left channel out = right channel in, Right channel out = right channel in.*/ +#define HPI_CHANNEL_MODE_RIGHT_TO_STEREO 4 +/** Left channel out = (left channel in + right channel in)/2, + Right channel out = mute. */ +#define HPI_CHANNEL_MODE_STEREO_TO_LEFT 5 +/** Left channel out = mute, + Right channel out = (right channel in + left channel in)/2. */ +#define HPI_CHANNEL_MODE_STEREO_TO_RIGHT 6 +#define HPI_CHANNEL_MODE_LAST 6 +/** \} */ + +/* Bitstream control set attributes */ +#define HPI_BITSTREAM_DATA_POLARITY HPI_CTL_ATTR(BITSTREAM, 1) +#define HPI_BITSTREAM_CLOCK_EDGE HPI_CTL_ATTR(BITSTREAM, 2) +#define HPI_BITSTREAM_CLOCK_SOURCE HPI_CTL_ATTR(BITSTREAM, 3) + +#define HPI_POLARITY_POSITIVE 0 +#define HPI_POLARITY_NEGATIVE 1 + +/* Bitstream control get attributes */ +#define HPI_BITSTREAM_ACTIVITY 1 + +/* SampleClock control attributes */ +#define HPI_SAMPLECLOCK_SOURCE HPI_CTL_ATTR(SAMPLECLOCK, 1) +#define HPI_SAMPLECLOCK_SAMPLERATE HPI_CTL_ATTR(SAMPLECLOCK, 2) +#define HPI_SAMPLECLOCK_SOURCE_INDEX HPI_CTL_ATTR(SAMPLECLOCK, 3) +#define HPI_SAMPLECLOCK_LOCAL_SAMPLERATE\ + HPI_CTL_ATTR(SAMPLECLOCK, 4) +#define HPI_SAMPLECLOCK_AUTO HPI_CTL_ATTR(SAMPLECLOCK, 5) +#define HPI_SAMPLECLOCK_LOCAL_LOCK HPI_CTL_ATTR(SAMPLECLOCK, 6) + +/* Microphone control attributes */ +#define HPI_MICROPHONE_PHANTOM_POWER HPI_CTL_ATTR(MICROPHONE, 1) + +/** Equalizer control attributes +*/ +/** Used to get number of filters in an EQ. (Can't set) */ +#define HPI_EQUALIZER_NUM_FILTERS HPI_CTL_ATTR(EQUALIZER, 1) +/** Set/get the filter by type, freq, Q, gain */ +#define HPI_EQUALIZER_FILTER HPI_CTL_ATTR(EQUALIZER, 2) +/** Get the biquad coefficients */ +#define HPI_EQUALIZER_COEFFICIENTS HPI_CTL_ATTR(EQUALIZER, 3) + +#define HPI_COMPANDER_PARAMS HPI_CTL_ATTR(COMPANDER, 1) + +/* Cobranet control attributes. + MUST be distinct from all other control attributes. + This is so that host side processing can easily identify a Cobranet control + and apply additional host side operations (like copying data) as required. +*/ +#define HPI_COBRANET_SET HPI_CTL_ATTR(COBRANET, 1) +#define HPI_COBRANET_GET HPI_CTL_ATTR(COBRANET, 2) +#define HPI_COBRANET_SET_DATA HPI_CTL_ATTR(COBRANET, 3) +#define HPI_COBRANET_GET_DATA HPI_CTL_ATTR(COBRANET, 4) +#define HPI_COBRANET_GET_STATUS HPI_CTL_ATTR(COBRANET, 5) +#define HPI_COBRANET_SEND_PACKET HPI_CTL_ATTR(COBRANET, 6) +#define HPI_COBRANET_GET_PACKET HPI_CTL_ATTR(COBRANET, 7) + +/*------------------------------------------------------------ + Cobranet Chip Bridge - copied from HMI.H +------------------------------------------------------------*/ +#define HPI_COBRANET_HMI_cobra_bridge 0x20000 +#define HPI_COBRANET_HMI_cobra_bridge_tx_pkt_buf \ + (HPI_COBRANET_HMI_cobra_bridge + 0x1000) +#define HPI_COBRANET_HMI_cobra_bridge_rx_pkt_buf \ + (HPI_COBRANET_HMI_cobra_bridge + 0x2000) +#define HPI_COBRANET_HMI_cobra_if_table1 0x110000 +#define HPI_COBRANET_HMI_cobra_if_phy_address \ + (HPI_COBRANET_HMI_cobra_if_table1 + 0xd) +#define HPI_COBRANET_HMI_cobra_protocolIP 0x72000 +#define HPI_COBRANET_HMI_cobra_ip_mon_currentIP \ + (HPI_COBRANET_HMI_cobra_protocolIP + 0x0) +#define HPI_COBRANET_HMI_cobra_ip_mon_staticIP \ + (HPI_COBRANET_HMI_cobra_protocolIP + 0x2) +#define HPI_COBRANET_HMI_cobra_sys 0x100000 +#define HPI_COBRANET_HMI_cobra_sys_desc \ + (HPI_COBRANET_HMI_cobra_sys + 0x0) +#define HPI_COBRANET_HMI_cobra_sys_objectID \ + (HPI_COBRANET_HMI_cobra_sys + 0x100) +#define HPI_COBRANET_HMI_cobra_sys_contact \ + (HPI_COBRANET_HMI_cobra_sys + 0x200) +#define HPI_COBRANET_HMI_cobra_sys_name \ + (HPI_COBRANET_HMI_cobra_sys + 0x300) +#define HPI_COBRANET_HMI_cobra_sys_location \ + (HPI_COBRANET_HMI_cobra_sys + 0x400) + +/*------------------------------------------------------------ + Cobranet Chip Status bits +------------------------------------------------------------*/ +#define HPI_COBRANET_HMI_STATUS_RXPACKET 2 +#define HPI_COBRANET_HMI_STATUS_TXPACKET 3 + +/*------------------------------------------------------------ + Ethernet header size +------------------------------------------------------------*/ +#define HPI_ETHERNET_HEADER_SIZE (16) + +/* These defines are used to fill in protocol information for an Ethernet packet + sent using HMI on CS18102 */ +/** ID supplied by Cirrius for ASI packets. */ +#define HPI_ETHERNET_PACKET_ID 0x85 +/** Simple packet - no special routing required */ +#define HPI_ETHERNET_PACKET_V1 0x01 +/** This packet must make its way to the host across the HPI interface */ +#define HPI_ETHERNET_PACKET_HOSTED_VIA_HMI 0x20 +/** This packet must make its way to the host across the HPI interface */ +#define HPI_ETHERNET_PACKET_HOSTED_VIA_HMI_V1 0x21 +/** This packet must make its way to the host across the HPI interface */ +#define HPI_ETHERNET_PACKET_HOSTED_VIA_HPI 0x40 +/** This packet must make its way to the host across the HPI interface */ +#define HPI_ETHERNET_PACKET_HOSTED_VIA_HPI_V1 0x41 + +#define HPI_ETHERNET_UDP_PORT (44600) /*!< UDP messaging port */ + +/** Base network time out is set to 100 milli-seconds. */ +#define HPI_ETHERNET_TIMEOUT_MS (100) + +/** \defgroup tonedet_attr Tonedetector attributes +\{ +Used by HPI_ToneDetector_Set() and HPI_ToneDetector_Get() +*/ + +/** Set the threshold level of a tonedetector, +Threshold is a -ve number in units of dB/100, +*/ +#define HPI_TONEDETECTOR_THRESHOLD HPI_CTL_ATTR(TONEDETECTOR, 1) + +/** Get the current state of tonedetection +The result is a bitmap of detected tones. pairs of bits represent the left +and right channels, with left channel in LSB. +The lowest frequency detector state is in the LSB +*/ +#define HPI_TONEDETECTOR_STATE HPI_CTL_ATTR(TONEDETECTOR, 2) + +/** Get the frequency of a tonedetector band. +*/ +#define HPI_TONEDETECTOR_FREQUENCY HPI_CTL_ATTR(TONEDETECTOR, 3) + +/**\}*/ + +/** \defgroup silencedet_attr SilenceDetector attributes +\{ +*/ + +/** Get the current state of tonedetection +The result is a bitmap with 1s for silent channels. Left channel is in LSB +*/ +#define HPI_SILENCEDETECTOR_STATE \ + HPI_CTL_ATTR(SILENCEDETECTOR, 2) + +/** Set the threshold level of a SilenceDetector, +Threshold is a -ve number in units of dB/100, +*/ +#define HPI_SILENCEDETECTOR_THRESHOLD \ + HPI_CTL_ATTR(SILENCEDETECTOR, 1) + +/** get/set the silence time before the detector triggers +*/ +#define HPI_SILENCEDETECTOR_DELAY \ + HPI_CTL_ATTR(SILENCEDETECTOR, 3) + +/**\}*/ + +/* Locked memory buffer alloc/free phases */ +/** use one message to allocate or free physical memory */ +#define HPI_BUFFER_CMD_EXTERNAL 0 +/** alloc physical memory */ +#define HPI_BUFFER_CMD_INTERNAL_ALLOC 1 +/** send physical memory address to adapter */ +#define HPI_BUFFER_CMD_INTERNAL_GRANTADAPTER 2 +/** notify adapter to stop using physical buffer */ +#define HPI_BUFFER_CMD_INTERNAL_REVOKEADAPTER 3 +/** free physical buffer */ +#define HPI_BUFFER_CMD_INTERNAL_FREE 4 + +/******************************************* CONTROLX ATTRIBUTES ****/ +/* NOTE: All controlx attributes must be unique, unlike control attributes */ + +/*****************************************************************************/ +/*****************************************************************************/ +/******** HPI LOW LEVEL MESSAGES *******/ +/*****************************************************************************/ +/*****************************************************************************/ +/** Pnp ids */ +/** "ASI" - actual is "ASX" - need to change */ +#define HPI_ID_ISAPNP_AUDIOSCIENCE 0x0669 +/** PCI vendor ID that AudioScience uses */ +#define HPI_PCI_VENDOR_ID_AUDIOSCIENCE 0x175C +/** PCI vendor ID that the DSP56301 has */ +#define HPI_PCI_VENDOR_ID_MOTOROLA 0x1057 +/** PCI vendor ID that TI uses */ +#define HPI_PCI_VENDOR_ID_TI 0x104C + +#define HPI_PCI_DEV_ID_PCI2040 0xAC60 +/** TI's C6205 PCI interface has this ID */ +#define HPI_PCI_DEV_ID_DSP6205 0xA106 + +#define HPI_USB_VENDOR_ID_AUDIOSCIENCE 0x1257 +#define HPI_USB_W2K_TAG 0x57495341 /* "ASIW" */ +#define HPI_USB_LINUX_TAG 0x4C495341 /* "ASIL" */ + +/** First 2 hex digits define the adapter family */ +#define HPI_ADAPTER_FAMILY_MASK 0xff00 + +#define HPI_ADAPTER_FAMILY_ASI(f) (f & HPI_ADAPTER_FAMILY_MASK) +#define HPI_ADAPTER_ASI(f) (f) + +/******************************************* message types */ +#define HPI_TYPE_MESSAGE 1 +#define HPI_TYPE_RESPONSE 2 +#define HPI_TYPE_DATA 3 +#define HPI_TYPE_SSX2BYPASS_MESSAGE 4 + +/******************************************* object types */ +#define HPI_OBJ_SUBSYSTEM 1 +#define HPI_OBJ_ADAPTER 2 +#define HPI_OBJ_OSTREAM 3 +#define HPI_OBJ_ISTREAM 4 +#define HPI_OBJ_MIXER 5 +#define HPI_OBJ_NODE 6 +#define HPI_OBJ_CONTROL 7 +#define HPI_OBJ_NVMEMORY 8 +#define HPI_OBJ_GPIO 9 +#define HPI_OBJ_WATCHDOG 10 +#define HPI_OBJ_CLOCK 11 +#define HPI_OBJ_PROFILE 12 +#define HPI_OBJ_CONTROLEX 13 +#define HPI_OBJ_ASYNCEVENT 14 + +#define HPI_OBJ_MAXINDEX 14 + +/******************************************* methods/functions */ + +#define HPI_OBJ_FUNCTION_SPACING 0x100 +#define HPI_MAKE_INDEX(obj, index) (obj * HPI_OBJ_FUNCTION_SPACING + index) +#define HPI_EXTRACT_INDEX(fn) (fn & 0xff) + +/* SUB-SYSTEM */ +#define HPI_SUBSYS_OPEN HPI_MAKE_INDEX(HPI_OBJ_SUBSYSTEM, 1) +#define HPI_SUBSYS_GET_VERSION HPI_MAKE_INDEX(HPI_OBJ_SUBSYSTEM, 2) +#define HPI_SUBSYS_GET_INFO HPI_MAKE_INDEX(HPI_OBJ_SUBSYSTEM, 3) +#define HPI_SUBSYS_FIND_ADAPTERS HPI_MAKE_INDEX(HPI_OBJ_SUBSYSTEM, 4) +#define HPI_SUBSYS_CREATE_ADAPTER HPI_MAKE_INDEX(HPI_OBJ_SUBSYSTEM, 5) +#define HPI_SUBSYS_CLOSE HPI_MAKE_INDEX(HPI_OBJ_SUBSYSTEM, 6) +#define HPI_SUBSYS_DELETE_ADAPTER HPI_MAKE_INDEX(HPI_OBJ_SUBSYSTEM, 7) +#define HPI_SUBSYS_DRIVER_LOAD HPI_MAKE_INDEX(HPI_OBJ_SUBSYSTEM, 8) +#define HPI_SUBSYS_DRIVER_UNLOAD HPI_MAKE_INDEX(HPI_OBJ_SUBSYSTEM, 9) +#define HPI_SUBSYS_READ_PORT_8 HPI_MAKE_INDEX(HPI_OBJ_SUBSYSTEM, 10) +#define HPI_SUBSYS_WRITE_PORT_8 HPI_MAKE_INDEX(HPI_OBJ_SUBSYSTEM, 11) +#define HPI_SUBSYS_GET_NUM_ADAPTERS HPI_MAKE_INDEX(HPI_OBJ_SUBSYSTEM, 12) +#define HPI_SUBSYS_GET_ADAPTER HPI_MAKE_INDEX(HPI_OBJ_SUBSYSTEM, 13) +#define HPI_SUBSYS_SET_NETWORK_INTERFACE HPI_MAKE_INDEX(HPI_OBJ_SUBSYSTEM, 14) +#define HPI_SUBSYS_FUNCTION_COUNT 14 +/* ADAPTER */ +#define HPI_ADAPTER_OPEN HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 1) +#define HPI_ADAPTER_CLOSE HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 2) +#define HPI_ADAPTER_GET_INFO HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 3) +#define HPI_ADAPTER_GET_ASSERT HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 4) +#define HPI_ADAPTER_TEST_ASSERT HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 5) +#define HPI_ADAPTER_SET_MODE HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 6) +#define HPI_ADAPTER_GET_MODE HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 7) +#define HPI_ADAPTER_ENABLE_CAPABILITY HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 8) +#define HPI_ADAPTER_SELFTEST HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 9) +#define HPI_ADAPTER_FIND_OBJECT HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 10) +#define HPI_ADAPTER_QUERY_FLASH HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 11) +#define HPI_ADAPTER_START_FLASH HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 12) +#define HPI_ADAPTER_PROGRAM_FLASH HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 13) +#define HPI_ADAPTER_SET_PROPERTY HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 14) +#define HPI_ADAPTER_GET_PROPERTY HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 15) +#define HPI_ADAPTER_ENUM_PROPERTY HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 16) +#define HPI_ADAPTER_MODULE_INFO HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 17) +#define HPI_ADAPTER_DEBUG_READ HPI_MAKE_INDEX(HPI_OBJ_ADAPTER, 18) +#define HPI_ADAPTER_FUNCTION_COUNT 18 +/* OUTPUT STREAM */ +#define HPI_OSTREAM_OPEN HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 1) +#define HPI_OSTREAM_CLOSE HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 2) +#define HPI_OSTREAM_WRITE HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 3) +#define HPI_OSTREAM_START HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 4) +#define HPI_OSTREAM_STOP HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 5) +#define HPI_OSTREAM_RESET HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 6) +#define HPI_OSTREAM_GET_INFO HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 7) +#define HPI_OSTREAM_QUERY_FORMAT HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 8) +#define HPI_OSTREAM_DATA HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 9) +#define HPI_OSTREAM_SET_VELOCITY HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 10) +#define HPI_OSTREAM_SET_PUNCHINOUT HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 11) +#define HPI_OSTREAM_SINEGEN HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 12) +#define HPI_OSTREAM_ANC_RESET HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 13) +#define HPI_OSTREAM_ANC_GET_INFO HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 14) +#define HPI_OSTREAM_ANC_READ HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 15) +#define HPI_OSTREAM_SET_TIMESCALE HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 16) +#define HPI_OSTREAM_SET_FORMAT HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 17) +#define HPI_OSTREAM_HOSTBUFFER_ALLOC HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 18) +#define HPI_OSTREAM_HOSTBUFFER_FREE HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 19) +#define HPI_OSTREAM_GROUP_ADD HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 20) +#define HPI_OSTREAM_GROUP_GETMAP HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 21) +#define HPI_OSTREAM_GROUP_RESET HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 22) +#define HPI_OSTREAM_HOSTBUFFER_GET_INFO HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 23) +#define HPI_OSTREAM_WAIT_START HPI_MAKE_INDEX(HPI_OBJ_OSTREAM, 24) +#define HPI_OSTREAM_FUNCTION_COUNT 24 +/* INPUT STREAM */ +#define HPI_ISTREAM_OPEN HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 1) +#define HPI_ISTREAM_CLOSE HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 2) +#define HPI_ISTREAM_SET_FORMAT HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 3) +#define HPI_ISTREAM_READ HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 4) +#define HPI_ISTREAM_START HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 5) +#define HPI_ISTREAM_STOP HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 6) +#define HPI_ISTREAM_RESET HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 7) +#define HPI_ISTREAM_GET_INFO HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 8) +#define HPI_ISTREAM_QUERY_FORMAT HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 9) +#define HPI_ISTREAM_ANC_RESET HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 10) +#define HPI_ISTREAM_ANC_GET_INFO HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 11) +#define HPI_ISTREAM_ANC_WRITE HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 12) +#define HPI_ISTREAM_HOSTBUFFER_ALLOC HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 13) +#define HPI_ISTREAM_HOSTBUFFER_FREE HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 14) +#define HPI_ISTREAM_GROUP_ADD HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 15) +#define HPI_ISTREAM_GROUP_GETMAP HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 16) +#define HPI_ISTREAM_GROUP_RESET HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 17) +#define HPI_ISTREAM_HOSTBUFFER_GET_INFO HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 18) +#define HPI_ISTREAM_WAIT_START HPI_MAKE_INDEX(HPI_OBJ_ISTREAM, 19) +#define HPI_ISTREAM_FUNCTION_COUNT 19 +/* MIXER */ +/* NOTE: + GET_NODE_INFO, SET_CONNECTION, GET_CONNECTIONS are not currently used */ +#define HPI_MIXER_OPEN HPI_MAKE_INDEX(HPI_OBJ_MIXER, 1) +#define HPI_MIXER_CLOSE HPI_MAKE_INDEX(HPI_OBJ_MIXER, 2) +#define HPI_MIXER_GET_INFO HPI_MAKE_INDEX(HPI_OBJ_MIXER, 3) +#define HPI_MIXER_GET_NODE_INFO HPI_MAKE_INDEX(HPI_OBJ_MIXER, 4) +#define HPI_MIXER_GET_CONTROL HPI_MAKE_INDEX(HPI_OBJ_MIXER, 5) +#define HPI_MIXER_SET_CONNECTION HPI_MAKE_INDEX(HPI_OBJ_MIXER, 6) +#define HPI_MIXER_GET_CONNECTIONS HPI_MAKE_INDEX(HPI_OBJ_MIXER, 7) +#define HPI_MIXER_GET_CONTROL_BY_INDEX HPI_MAKE_INDEX(HPI_OBJ_MIXER, 8) +#define HPI_MIXER_GET_CONTROL_ARRAY_BY_INDEX HPI_MAKE_INDEX(HPI_OBJ_MIXER, 9) +#define HPI_MIXER_GET_CONTROL_MULTIPLE_VALUES HPI_MAKE_INDEX(HPI_OBJ_MIXER, 10) +#define HPI_MIXER_STORE HPI_MAKE_INDEX(HPI_OBJ_MIXER, 11) +#define HPI_MIXER_FUNCTION_COUNT 11 +/* MIXER CONTROLS */ +#define HPI_CONTROL_GET_INFO HPI_MAKE_INDEX(HPI_OBJ_CONTROL, 1) +#define HPI_CONTROL_GET_STATE HPI_MAKE_INDEX(HPI_OBJ_CONTROL, 2) +#define HPI_CONTROL_SET_STATE HPI_MAKE_INDEX(HPI_OBJ_CONTROL, 3) +#define HPI_CONTROL_FUNCTION_COUNT 3 +/* NONVOL MEMORY */ +#define HPI_NVMEMORY_OPEN HPI_MAKE_INDEX(HPI_OBJ_NVMEMORY, 1) +#define HPI_NVMEMORY_READ_BYTE HPI_MAKE_INDEX(HPI_OBJ_NVMEMORY, 2) +#define HPI_NVMEMORY_WRITE_BYTE HPI_MAKE_INDEX(HPI_OBJ_NVMEMORY, 3) +#define HPI_NVMEMORY_FUNCTION_COUNT 3 +/* GPIO */ +#define HPI_GPIO_OPEN HPI_MAKE_INDEX(HPI_OBJ_GPIO, 1) +#define HPI_GPIO_READ_BIT HPI_MAKE_INDEX(HPI_OBJ_GPIO, 2) +#define HPI_GPIO_WRITE_BIT HPI_MAKE_INDEX(HPI_OBJ_GPIO, 3) +#define HPI_GPIO_READ_ALL HPI_MAKE_INDEX(HPI_OBJ_GPIO, 4) +#define HPI_GPIO_WRITE_STATUS HPI_MAKE_INDEX(HPI_OBJ_GPIO, 5) +#define HPI_GPIO_FUNCTION_COUNT 5 +/* ASYNC EVENT */ +#define HPI_ASYNCEVENT_OPEN HPI_MAKE_INDEX(HPI_OBJ_ASYNCEVENT, 1) +#define HPI_ASYNCEVENT_CLOSE HPI_MAKE_INDEX(HPI_OBJ_ASYNCEVENT, 2) +#define HPI_ASYNCEVENT_WAIT HPI_MAKE_INDEX(HPI_OBJ_ASYNCEVENT, 3) +#define HPI_ASYNCEVENT_GETCOUNT HPI_MAKE_INDEX(HPI_OBJ_ASYNCEVENT, 4) +#define HPI_ASYNCEVENT_GET HPI_MAKE_INDEX(HPI_OBJ_ASYNCEVENT, 5) +#define HPI_ASYNCEVENT_SENDEVENTS HPI_MAKE_INDEX(HPI_OBJ_ASYNCEVENT, 6) +#define HPI_ASYNCEVENT_FUNCTION_COUNT 6 +/* WATCH-DOG */ +#define HPI_WATCHDOG_OPEN HPI_MAKE_INDEX(HPI_OBJ_WATCHDOG, 1) +#define HPI_WATCHDOG_SET_TIME HPI_MAKE_INDEX(HPI_OBJ_WATCHDOG, 2) +#define HPI_WATCHDOG_PING HPI_MAKE_INDEX(HPI_OBJ_WATCHDOG, 3) +/* CLOCK */ +#define HPI_CLOCK_OPEN HPI_MAKE_INDEX(HPI_OBJ_CLOCK, 1) +#define HPI_CLOCK_SET_TIME HPI_MAKE_INDEX(HPI_OBJ_CLOCK, 2) +#define HPI_CLOCK_GET_TIME HPI_MAKE_INDEX(HPI_OBJ_CLOCK, 3) +/* PROFILE */ +#define HPI_PROFILE_OPEN_ALL HPI_MAKE_INDEX(HPI_OBJ_PROFILE, 1) +#define HPI_PROFILE_START_ALL HPI_MAKE_INDEX(HPI_OBJ_PROFILE, 2) +#define HPI_PROFILE_STOP_ALL HPI_MAKE_INDEX(HPI_OBJ_PROFILE, 3) +#define HPI_PROFILE_GET HPI_MAKE_INDEX(HPI_OBJ_PROFILE, 4) +#define HPI_PROFILE_GET_IDLECOUNT HPI_MAKE_INDEX(HPI_OBJ_PROFILE, 5) +#define HPI_PROFILE_GET_NAME HPI_MAKE_INDEX(HPI_OBJ_PROFILE, 6) +#define HPI_PROFILE_GET_UTILIZATION HPI_MAKE_INDEX(HPI_OBJ_PROFILE, 7) +#define HPI_PROFILE_FUNCTION_COUNT 7 +/* ////////////////////////////////////////////////////////////////////// */ +/* PRIVATE ATTRIBUTES */ + +/* ////////////////////////////////////////////////////////////////////// */ +/* STRUCTURES */ +#ifndef DISABLE_PRAGMA_PACK1 +#pragma pack(push, 1) +#endif + +/** PCI bus resource */ +struct hpi_pci { + u32 __iomem *ap_mem_base[HPI_MAX_ADAPTER_MEM_SPACES]; + struct pci_dev *p_os_data; + +#ifndef HPI64BIT /* keep structure size constant */ + u32 padding[HPI_MAX_ADAPTER_MEM_SPACES + 1]; +#endif + u16 vendor_id; + u16 device_id; + u16 subsys_vendor_id; + u16 subsys_device_id; + u16 bus_number; + u16 device_number; + u32 interrupt; +}; + +struct hpi_resource { + union { + const struct hpi_pci *pci; + const char *net_if; + } r; +#ifndef HPI64BIT /* keep structure size constant */ + u32 pad_to64; +#endif + u16 bus_type; /* HPI_BUS_PNPISA, _PCI, _USB etc */ + u16 padding; + +}; + +/** Format info used inside struct hpi_message + Not the same as public API struct hpi_format */ +struct hpi_msg_format { + u32 sample_rate; + /**< 11025, 32000, 44100 ... */ + u32 bit_rate; /**< for MPEG */ + u32 attributes; + /**< Stereo/JointStereo/Mono */ + u16 channels; /**< 1,2..., (or ancillary mode or idle bit */ + u16 format; /**< HPI_FORMAT_PCM16, _MPEG etc. see \ref HPI_FORMATS. */ +}; + +/** Buffer+format structure. + Must be kept 7 * 32 bits to match public struct hpi_datastruct */ +struct hpi_msg_data { + struct hpi_msg_format format; + u8 *pb_data; +#ifndef HPI64BIT + u32 padding; +#endif + u32 data_size; +}; + +/** struct hpi_datastructure used up to 3.04 driver */ +struct hpi_data_legacy32 { + struct hpi_format format; + u32 pb_data; + u32 data_size; +}; + +#ifdef HPI64BIT +/* Compatibility version of struct hpi_data*/ +struct hpi_data_compat32 { + struct hpi_msg_format format; + u32 pb_data; + u32 padding; + u32 data_size; +}; +#endif + +struct hpi_buffer { + /** placehoder for backward compatability (see dwBufferSize) */ + struct hpi_msg_format reserved; + u32 command; /**< HPI_BUFFER_CMD_xxx*/ + u32 pci_address; /**< PCI physical address of buffer for DSP DMA */ + u32 buffer_size; /**< must line up with data_size of HPI_DATA*/ +}; + +/*/////////////////////////////////////////////////////////////////////////// */ +/* This is used for background buffer bus mastering stream buffers. */ +struct hpi_hostbuffer_status { + u32 samples_processed; + u32 auxiliary_data_available; + u32 stream_state; + /* DSP index in to the host bus master buffer. */ + u32 dSP_index; + /* Host index in to the host bus master buffer. */ + u32 host_index; + u32 size_in_bytes; +}; + +struct hpi_streamid { + u16 object_type; + /**< Type of object, HPI_OBJ_OSTREAM or HPI_OBJ_ISTREAM. */ + u16 stream_index; /**< outstream or instream index. */ +}; + +struct hpi_punchinout { + u32 punch_in_sample; + u32 punch_out_sample; +}; + +struct hpi_subsys_msg { + struct hpi_resource resource; +}; + +struct hpi_subsys_res { + u32 version; + u32 data; /* used to return extended version */ + u16 num_adapters; /* number of adapters */ + u16 adapter_index; + u16 aw_adapter_list[HPI_MAX_ADAPTERS]; +}; + +struct hpi_adapter_msg { + u32 adapter_mode; /* adapter mode */ + u16 assert_id; /* assert number for "test assert" call + object_index for find object call + query_or_set for hpi_adapter_set_mode_ex() */ + u16 object_type; /* for adapter find object call */ +}; + +union hpi_adapterx_msg { + struct hpi_adapter_msg adapter; + struct { + u32 offset; + } query_flash; + struct { + u32 offset; + u32 length; + u32 key; + } start_flash; + struct { + u32 checksum; + u16 sequence; + u16 length; + u16 offset; /**< offset from start of msg to data */ + u16 unused; + } program_flash; + struct { + u16 property; + u16 parameter1; + u16 parameter2; + } property_set; + struct { + u16 index; + u16 what; + u16 property_index; + } property_enum; + struct { + u16 index; + } module_info; + struct { + u32 dsp_address; + u32 count_bytes; + } debug_read; +}; + +struct hpi_adapter_res { + u32 serial_number; + u16 adapter_type; + u16 adapter_index; /* is this needed? also used for dsp_index */ + u16 num_instreams; + u16 num_outstreams; + u16 num_mixers; + u16 version; + u8 sz_adapter_assert[HPI_STRING_LEN]; +}; + +union hpi_adapterx_res { + struct hpi_adapter_res adapter; + struct { + u32 checksum; + u32 length; + u32 version; + } query_flash; + struct { + u16 sequence; + } program_flash; + struct { + u16 parameter1; + u16 parameter2; + } property_get; +}; + +struct hpi_stream_msg { + union { + struct hpi_msg_data data; + struct hpi_data_legacy32 data32; + u16 velocity; + struct hpi_punchinout pio; + u32 time_scale; + struct hpi_buffer buffer; + struct hpi_streamid stream; + } u; +}; + +struct hpi_stream_res { + union { + struct { + /* size of hardware buffer */ + u32 buffer_size; + /* OutStream - data to play, + InStream - data recorded */ + u32 data_available; + /* OutStream - samples played, + InStream - samples recorded */ + u32 samples_transferred; + /* Adapter - OutStream - data to play, + InStream - data recorded */ + u32 auxiliary_data_available; + u16 state; /* HPI_STATE_PLAYING, _STATE_STOPPED */ + u16 padding; + } stream_info; + struct { + u32 buffer_size; + u32 data_available; + u32 samples_transfered; + u16 state; + u16 outstream_index; + u16 instream_index; + u16 padding; + u32 auxiliary_data_available; + } legacy_stream_info; + struct { + /* bitmap of grouped OutStreams */ + u32 outstream_group_map; + /* bitmap of grouped InStreams */ + u32 instream_group_map; + } group_info; + struct { + /* pointer to the buffer */ + u8 *p_buffer; + /* pointer to the hostbuffer status */ + struct hpi_hostbuffer_status *p_status; + } hostbuffer_info; + } u; +}; + +struct hpi_mixer_msg { + u16 control_index; + u16 control_type; /* = HPI_CONTROL_METER _VOLUME etc */ + u16 padding1; /* maintain alignment of subsequent fields */ + u16 node_type1; /* = HPI_SOURCENODE_LINEIN etc */ + u16 node_index1; /* = 0..N */ + u16 node_type2; + u16 node_index2; + u16 padding2; /* round to 4 bytes */ +}; + +struct hpi_mixer_res { + u16 src_node_type; /* = HPI_SOURCENODE_LINEIN etc */ + u16 src_node_index; /* = 0..N */ + u16 dst_node_type; + u16 dst_node_index; + /* Also controlType for MixerGetControlByIndex */ + u16 control_index; + /* may indicate which DSP the control is located on */ + u16 dsp_index; +}; + +union hpi_mixerx_msg { + struct { + u16 starting_index; + u16 flags; + u32 length_in_bytes; /* length in bytes of p_data */ + u32 p_data; /* pointer to a data array */ + } gcabi; + struct { + u16 command; + u16 index; + } store; /* for HPI_MIXER_STORE message */ +}; + +union hpi_mixerx_res { + struct { + u32 bytes_returned; /* size of items returned */ + u32 p_data; /* pointer to data array */ + u16 more_to_do; /* indicates if there is more to do */ + } gcabi; +}; + +struct hpi_control_msg { + u16 attribute; /* control attribute or property */ + u16 saved_index; + u32 param1; /* generic parameter 1 */ + u32 param2; /* generic parameter 2 */ + short an_log_value[HPI_MAX_CHANNELS]; +}; + +struct hpi_control_union_msg { + u16 attribute; /* control attribute or property */ + u16 saved_index; /* only used in ctrl save/restore */ + union { + struct { + u32 param1; /* generic parameter 1 */ + u32 param2; /* generic parameter 2 */ + short an_log_value[HPI_MAX_CHANNELS]; + } old; + union { + u32 frequency; + u32 gain; + u32 band; + u32 deemphasis; + u32 program; + struct { + u32 mode; + u32 value; + } mode; + } tuner; + } u; +}; + +struct hpi_control_res { + /* Could make union. dwParam, anLogValue never used in same response */ + u32 param1; + u32 param2; + short an_log_value[HPI_MAX_CHANNELS]; +}; + +union hpi_control_union_res { + struct { + u32 param1; + u32 param2; + short an_log_value[HPI_MAX_CHANNELS]; + } old; + union { + u32 band; + u32 frequency; + u32 gain; + u32 level; + u32 deemphasis; + struct { + u32 data[2]; + u32 bLER; + } rds; + } tuner; + struct { + char sz_data[8]; + u32 remaining_chars; + } chars8; + char c_data12[12]; +}; + +/* HPI_CONTROLX_STRUCTURES */ + +/* Message */ + +/** Used for all HMI variables where max length <= 8 bytes +*/ +struct hpi_controlx_msg_cobranet_data { + u32 hmi_address; + u32 byte_count; + u32 data[2]; +}; + +/** Used for string data, and for packet bridge +*/ +struct hpi_controlx_msg_cobranet_bigdata { + u32 hmi_address; + u32 byte_count; + u8 *pb_data; +#ifndef HPI64BIT + u32 padding; +#endif +}; + +/** Used for PADS control reading of string fields. +*/ +struct hpi_controlx_msg_pad_data { + u32 field; + u32 byte_count; + u8 *pb_data; +#ifndef HPI64BIT + u32 padding; +#endif +}; + +/** Used for generic data +*/ + +struct hpi_controlx_msg_generic { + u32 param1; + u32 param2; +}; + +struct hpi_controlx_msg { + u16 attribute; /* control attribute or property */ + u16 saved_index; + union { + struct hpi_controlx_msg_cobranet_data cobranet_data; + struct hpi_controlx_msg_cobranet_bigdata cobranet_bigdata; + struct hpi_controlx_msg_generic generic; + struct hpi_controlx_msg_pad_data pad_data; + /*struct param_value universal_value; */ + /* nothing extra to send for status read */ + } u; +}; + +/* Response */ +/** +*/ +struct hpi_controlx_res_cobranet_data { + u32 byte_count; + u32 data[2]; +}; + +struct hpi_controlx_res_cobranet_bigdata { + u32 byte_count; +}; + +struct hpi_controlx_res_cobranet_status { + u32 status; + u32 readable_size; + u32 writeable_size; +}; + +struct hpi_controlx_res_generic { + u32 param1; + u32 param2; +}; + +struct hpi_controlx_res { + union { + struct hpi_controlx_res_cobranet_bigdata cobranet_bigdata; + struct hpi_controlx_res_cobranet_data cobranet_data; + struct hpi_controlx_res_cobranet_status cobranet_status; + struct hpi_controlx_res_generic generic; + /*struct param_info universal_info; */ + /*struct param_value universal_value; */ + } u; +}; + +struct hpi_nvmemory_msg { + u16 address; + u16 data; +}; + +struct hpi_nvmemory_res { + u16 size_in_bytes; + u16 data; +}; + +struct hpi_gpio_msg { + u16 bit_index; + u16 bit_data; +}; + +struct hpi_gpio_res { + u16 number_input_bits; + u16 number_output_bits; + u16 bit_data[4]; +}; + +struct hpi_async_msg { + u32 events; + u16 maximum_events; + u16 padding; +}; + +struct hpi_async_res { + union { + struct { + u16 count; + } count; + struct { + u32 events; + u16 number_returned; + u16 padding; + } get; + struct hpi_async_event event; + } u; +}; + +struct hpi_watchdog_msg { + u32 time_ms; +}; + +struct hpi_watchdog_res { + u32 time_ms; +}; + +struct hpi_clock_msg { + u16 hours; + u16 minutes; + u16 seconds; + u16 milli_seconds; +}; + +struct hpi_clock_res { + u16 size_in_bytes; + u16 hours; + u16 minutes; + u16 seconds; + u16 milli_seconds; + u16 padding; +}; + +struct hpi_profile_msg { + u16 bin_index; + u16 padding; +}; + +struct hpi_profile_res_open { + u16 max_profiles; +}; + +struct hpi_profile_res_time { + u32 micro_seconds; + u32 call_count; + u32 max_micro_seconds; + u32 min_micro_seconds; + u16 seconds; +}; + +struct hpi_profile_res_name { + u8 sz_name[32]; +}; + +struct hpi_profile_res { + union { + struct hpi_profile_res_open o; + struct hpi_profile_res_time t; + struct hpi_profile_res_name n; + } u; +}; + +struct hpi_message_header { + u16 size; /* total size in bytes */ + u8 type; /* HPI_TYPE_MESSAGE */ + u8 version; /* message version */ + u16 object; /* HPI_OBJ_* */ + u16 function; /* HPI_SUBSYS_xxx, HPI_ADAPTER_xxx */ + u16 adapter_index; /* the adapter index */ + u16 obj_index; /* */ +}; + +struct hpi_message { + /* following fields must match HPI_MESSAGE_HEADER */ + u16 size; /* total size in bytes */ + u8 type; /* HPI_TYPE_MESSAGE */ + u8 version; /* message version */ + u16 object; /* HPI_OBJ_* */ + u16 function; /* HPI_SUBSYS_xxx, HPI_ADAPTER_xxx */ + u16 adapter_index; /* the adapter index */ + u16 obj_index; /* */ + union { + struct hpi_subsys_msg s; + struct hpi_adapter_msg a; + union hpi_adapterx_msg ax; + struct hpi_stream_msg d; + struct hpi_mixer_msg m; + union hpi_mixerx_msg mx; /* extended mixer; */ + struct hpi_control_msg c; /* mixer control; */ + /* identical to struct hpi_control_msg, + but field naming is improved */ + struct hpi_control_union_msg cu; + struct hpi_controlx_msg cx; /* extended mixer control; */ + struct hpi_nvmemory_msg n; + struct hpi_gpio_msg l; /* digital i/o */ + struct hpi_watchdog_msg w; + struct hpi_clock_msg t; /* dsp time */ + struct hpi_profile_msg p; + struct hpi_async_msg as; + char fixed_size[32]; + } u; +}; + +#define HPI_MESSAGE_SIZE_BY_OBJECT { \ + sizeof(struct hpi_message_header) , /* default, no object type 0 */ \ + sizeof(struct hpi_message_header) + sizeof(struct hpi_subsys_msg),\ + sizeof(struct hpi_message_header) + sizeof(union hpi_adapterx_msg),\ + sizeof(struct hpi_message_header) + sizeof(struct hpi_stream_msg),\ + sizeof(struct hpi_message_header) + sizeof(struct hpi_stream_msg),\ + sizeof(struct hpi_message_header) + sizeof(struct hpi_mixer_msg),\ + sizeof(struct hpi_message_header) , /* no node message */ \ + sizeof(struct hpi_message_header) + sizeof(struct hpi_control_msg),\ + sizeof(struct hpi_message_header) + sizeof(struct hpi_nvmemory_msg),\ + sizeof(struct hpi_message_header) + sizeof(struct hpi_gpio_msg),\ + sizeof(struct hpi_message_header) + sizeof(struct hpi_watchdog_msg),\ + sizeof(struct hpi_message_header) + sizeof(struct hpi_clock_msg),\ + sizeof(struct hpi_message_header) + sizeof(struct hpi_profile_msg),\ + sizeof(struct hpi_message_header) + sizeof(struct hpi_controlx_msg),\ + sizeof(struct hpi_message_header) + sizeof(struct hpi_async_msg) \ +} + +struct hpi_response_header { + u16 size; + u8 type; /* HPI_TYPE_RESPONSE */ + u8 version; /* response version */ + u16 object; /* HPI_OBJ_* */ + u16 function; /* HPI_SUBSYS_xxx, HPI_ADAPTER_xxx */ + u16 error; /* HPI_ERROR_xxx */ + u16 specific_error; /* adapter specific error */ +}; + +struct hpi_response { +/* following fields must match HPI_RESPONSE_HEADER */ + u16 size; + u8 type; /* HPI_TYPE_RESPONSE */ + u8 version; /* response version */ + u16 object; /* HPI_OBJ_* */ + u16 function; /* HPI_SUBSYS_xxx, HPI_ADAPTER_xxx */ + u16 error; /* HPI_ERROR_xxx */ + u16 specific_error; /* adapter specific error */ + union { + struct hpi_subsys_res s; + struct hpi_adapter_res a; + union hpi_adapterx_res ax; + struct hpi_stream_res d; + struct hpi_mixer_res m; + union hpi_mixerx_res mx; /* extended mixer; */ + struct hpi_control_res c; /* mixer control; */ + /* identical to hpi_control_res, but field naming is improved */ + union hpi_control_union_res cu; + struct hpi_controlx_res cx; /* extended mixer control; */ + struct hpi_nvmemory_res n; + struct hpi_gpio_res l; /* digital i/o */ + struct hpi_watchdog_res w; + struct hpi_clock_res t; /* dsp time */ + struct hpi_profile_res p; + struct hpi_async_res as; + u8 bytes[52]; + } u; +}; + +#define HPI_RESPONSE_SIZE_BY_OBJECT { \ + sizeof(struct hpi_response_header) ,/* default, no object type 0 */ \ + sizeof(struct hpi_response_header) + sizeof(struct hpi_subsys_res),\ + sizeof(struct hpi_response_header) + sizeof(union hpi_adapterx_res),\ + sizeof(struct hpi_response_header) + sizeof(struct hpi_stream_res),\ + sizeof(struct hpi_response_header) + sizeof(struct hpi_stream_res),\ + sizeof(struct hpi_response_header) + sizeof(struct hpi_mixer_res),\ + sizeof(struct hpi_response_header) , /* no node response */ \ + sizeof(struct hpi_response_header) + sizeof(struct hpi_control_res),\ + sizeof(struct hpi_response_header) + sizeof(struct hpi_nvmemory_res),\ + sizeof(struct hpi_response_header) + sizeof(struct hpi_gpio_res),\ + sizeof(struct hpi_response_header) + sizeof(struct hpi_watchdog_res),\ + sizeof(struct hpi_response_header) + sizeof(struct hpi_clock_res),\ + sizeof(struct hpi_response_header) + sizeof(struct hpi_profile_res),\ + sizeof(struct hpi_response_header) + sizeof(struct hpi_controlx_res),\ + sizeof(struct hpi_response_header) + sizeof(struct hpi_async_res) \ +} + +/*********************** version 1 message/response *****************************/ +#define HPINET_ETHERNET_DATA_SIZE (1500) +#define HPINET_IP_HDR_SIZE (20) +#define HPINET_IP_DATA_SIZE (HPINET_ETHERNET_DATA_SIZE - HPINET_IP_HDR_SIZE) +#define HPINET_UDP_HDR_SIZE (8) +#define HPINET_UDP_DATA_SIZE (HPINET_IP_DATA_SIZE - HPINET_UDP_HDR_SIZE) +#define HPINET_ASI_HDR_SIZE (2) +#define HPINET_ASI_DATA_SIZE (HPINET_UDP_DATA_SIZE - HPINET_ASI_HDR_SIZE) + +#define HPI_MAX_PAYLOAD_SIZE (HPINET_ASI_DATA_SIZE - 2) + +/* New style message/response, but still V0 compatible */ +struct hpi_msg_adapter_get_info { + struct hpi_message_header h; +}; + +struct hpi_res_adapter_get_info { + struct hpi_response_header h; /*v0 */ + struct hpi_adapter_res p; +}; + +/* padding is so these are same size as v0 hpi_message */ +struct hpi_msg_adapter_query_flash { + struct hpi_message_header h; + u32 offset; + u8 pad_to_version0_size[sizeof(struct hpi_message) - /* V0 res */ + sizeof(struct hpi_message_header) - 1 * sizeof(u32)]; +}; + +/* padding is so these are same size as v0 hpi_response */ +struct hpi_res_adapter_query_flash { + struct hpi_response_header h; + u32 checksum; + u32 length; + u32 version; + u8 pad_to_version0_size[sizeof(struct hpi_response) - /* V0 res */ + sizeof(struct hpi_response_header) - 3 * sizeof(u32)]; +}; + +struct hpi_msg_adapter_start_flash { + struct hpi_message_header h; + u32 offset; + u32 length; + u32 key; + u8 pad_to_version0_size[sizeof(struct hpi_message) - /* V0 res */ + sizeof(struct hpi_message_header) - 3 * sizeof(u32)]; +}; + +struct hpi_res_adapter_start_flash { + struct hpi_response_header h; + u8 pad_to_version0_size[sizeof(struct hpi_response) - /* V0 res */ + sizeof(struct hpi_response_header)]; +}; + +struct hpi_msg_adapter_program_flash_payload { + u32 checksum; + u16 sequence; + u16 length; + u16 offset; /**< offset from start of msg to data */ + u16 unused; + /* ensure sizeof(header + payload) == sizeof(hpi_message_V0) + because old firmware expects data after message of this size */ + u8 pad_to_version0_size[sizeof(struct hpi_message) - /* V0 message */ + sizeof(struct hpi_message_header) - sizeof(u32) - + 4 * sizeof(u16)]; +}; + +struct hpi_msg_adapter_program_flash { + struct hpi_message_header h; + struct hpi_msg_adapter_program_flash_payload p; + u32 data[256]; +}; + +struct hpi_res_adapter_program_flash { + struct hpi_response_header h; + u16 sequence; + u8 pad_to_version0_size[sizeof(struct hpi_response) - /* V0 res */ + sizeof(struct hpi_response_header) - sizeof(u16)]; +}; + +#if 1 +#define hpi_message_header_v1 hpi_message_header +#define hpi_response_header_v1 hpi_response_header +#else +/* V1 headers in Addition to v0 headers */ +struct hpi_message_header_v1 { + struct hpi_message_header h0; +/* struct { +} h1; */ +}; + +struct hpi_response_header_v1 { + struct hpi_response_header h0; + struct { + u16 adapter_index; /* the adapter index */ + u16 obj_index; /* object index */ + } h1; +}; +#endif + +/* STRV HPI Packet */ +struct hpi_msg_strv { + struct hpi_message_header h; + struct hpi_entity strv; +}; + +struct hpi_res_strv { + struct hpi_response_header h; + struct hpi_entity strv; +}; +#define MIN_STRV_PACKET_SIZE sizeof(struct hpi_res_strv) + +struct hpi_msg_payload_v0 { + struct hpi_message_header h; + union { + struct hpi_subsys_msg s; + struct hpi_adapter_msg a; + union hpi_adapterx_msg ax; + struct hpi_stream_msg d; + struct hpi_mixer_msg m; + union hpi_mixerx_msg mx; + struct hpi_control_msg c; + struct hpi_control_union_msg cu; + struct hpi_controlx_msg cx; + struct hpi_nvmemory_msg n; + struct hpi_gpio_msg l; + struct hpi_watchdog_msg w; + struct hpi_clock_msg t; + struct hpi_profile_msg p; + struct hpi_async_msg as; + } u; +}; + +struct hpi_res_payload_v0 { + struct hpi_response_header h; + union { + struct hpi_subsys_res s; + struct hpi_adapter_res a; + union hpi_adapterx_res ax; + struct hpi_stream_res d; + struct hpi_mixer_res m; + union hpi_mixerx_res mx; + struct hpi_control_res c; + union hpi_control_union_res cu; + struct hpi_controlx_res cx; + struct hpi_nvmemory_res n; + struct hpi_gpio_res l; + struct hpi_watchdog_res w; + struct hpi_clock_res t; + struct hpi_profile_res p; + struct hpi_async_res as; + } u; +}; + +union hpi_message_buffer_v1 { + struct hpi_message m0; /* version 0 */ + struct hpi_message_header_v1 h; + unsigned char buf[HPI_MAX_PAYLOAD_SIZE]; +}; + +union hpi_response_buffer_v1 { + struct hpi_response r0; /* version 0 */ + struct hpi_response_header_v1 h; + unsigned char buf[HPI_MAX_PAYLOAD_SIZE]; +}; + +compile_time_assert((sizeof(union hpi_message_buffer_v1) <= + HPI_MAX_PAYLOAD_SIZE), message_buffer_ok); +compile_time_assert((sizeof(union hpi_response_buffer_v1) <= + HPI_MAX_PAYLOAD_SIZE), response_buffer_ok); + +/*////////////////////////////////////////////////////////////////////////// */ +/* declarations for compact control calls */ +struct hpi_control_defn { + u8 type; + u8 channels; + u8 src_node_type; + u8 src_node_index; + u8 dest_node_type; + u8 dest_node_index; +}; + +/*////////////////////////////////////////////////////////////////////////// */ +/* declarations for control caching (internal to HPI<->DSP interaction) */ + +/** A compact representation of (part of) a controls state. +Used for efficient transfer of the control state +between DSP and host or across a network +*/ +struct hpi_control_cache_info { + /** one of HPI_CONTROL_* */ + u8 control_type; + /** The total size of cached information in 32-bit words. */ + u8 size_in32bit_words; + /** The original index of the control on the DSP */ + u16 control_index; +}; + +struct hpi_control_cache_single { + struct hpi_control_cache_info i; + union { + struct { /* volume */ + u16 an_log[2]; + } v; + struct { /* peak meter */ + u16 an_log_peak[2]; + u16 an_logRMS[2]; + } p; + struct { /* channel mode */ + u16 mode; + } m; + struct { /* multiplexer */ + u16 source_node_type; + u16 source_node_index; + } x; + struct { /* level/trim */ + u16 an_log[2]; + } l; + struct { /* tuner - partial caching. + some attributes go to the DSP. */ + u32 freq_ink_hz; + u16 band; + u16 level; + } t; + struct { /* AESEBU rx status */ + u32 error_status; + u32 source; + } aes3rx; + struct { /* AESEBU tx */ + u32 format; + } aes3tx; + struct { /* tone detector */ + u16 state; + } tone; + struct { /* silence detector */ + u32 state; + u32 count; + } silence; + struct { /* sample clock */ + u16 source; + u16 source_index; + u32 sample_rate; + } clk; + struct { /* microphone control */ + u16 state; + } phantom_power; + struct { /* generic control */ + u32 dw1; + u32 dw2; + } g; + } u; +}; + +struct hpi_control_cache_pad { + struct hpi_control_cache_info i; + u32 field_valid_flags; + u8 c_channel[8]; + u8 c_artist[40]; + u8 c_title[40]; + u8 c_comment[200]; + u32 pTY; + u32 pI; + u32 traffic_supported; + u32 traffic_anouncement; +}; + +/*/////////////////////////////////////////////////////////////////////////// */ +/* declarations for 2^N sized FIFO buffer (internal to HPI<->DSP interaction) */ +struct hpi_fifo_buffer { + u32 size; + u32 dSP_index; + u32 host_index; +}; + +#ifndef DISABLE_PRAGMA_PACK1 +#pragma pack(pop) +#endif + +/* skip host side function declarations for DSP + compile and documentation extraction */ + +char hpi_handle_object(const u32 handle); + +void hpi_handle_to_indexes(const u32 handle, u16 *pw_adapter_index, + u16 *pw_object_index); + +u32 hpi_indexes_to_handle(const char c_object, const u16 adapter_index, + const u16 object_index); + +/*////////////////////////////////////////////////////////////////////////// */ + +/* main HPI entry point */ +hpi_handler_func hpi_send_recv; + +/* UDP message */ +void hpi_send_recvUDP(struct hpi_message *phm, struct hpi_response *phr, + const unsigned int timeout); + +/* used in PnP OS/driver */ +u16 hpi_subsys_create_adapter(const struct hpi_hsubsys *ph_subsys, + const struct hpi_resource *p_resource, u16 *pw_adapter_index); + +u16 hpi_subsys_delete_adapter(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index); + +u16 hpi_outstream_host_buffer_get_info(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u8 **pp_buffer, + struct hpi_hostbuffer_status **pp_status); + +u16 hpi_instream_host_buffer_get_info(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, u8 **pp_buffer, + struct hpi_hostbuffer_status **pp_status); + +u16 hpi_adapter_restart(u16 adapter_index); + +/* +The following 3 functions were last declared in header files for +driver 3.10. HPI_ControlQuery() used to be the recommended way +of getting a volume range. Declared here for binary asihpi32.dll +compatibility. +*/ + +void hpi_format_to_msg(struct hpi_msg_format *pMF, + const struct hpi_format *pF); +void hpi_stream_response_to_legacy(struct hpi_stream_res *pSR); + +/*////////////////////////////////////////////////////////////////////////// */ +/* declarations for individual HPI entry points */ +hpi_handler_func HPI_1000; +hpi_handler_func HPI_6000; +hpi_handler_func HPI_6205; +hpi_handler_func HPI_COMMON; + +#endif /* _HPI_INTERNAL_H_ */ diff --git a/sound/pci/asihpi/hpicmn.c b/sound/pci/asihpi/hpicmn.c new file mode 100644 index 00000000000..565102cae4f --- /dev/null +++ b/sound/pci/asihpi/hpicmn.c @@ -0,0 +1,643 @@ +/****************************************************************************** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +\file hpicmn.c + + Common functions used by hpixxxx.c modules + +(C) Copyright AudioScience Inc. 1998-2003 +*******************************************************************************/ +#define SOURCEFILE_NAME "hpicmn.c" + +#include "hpi_internal.h" +#include "hpidebug.h" +#include "hpicmn.h" + +struct hpi_adapters_list { + struct hpios_spinlock list_lock; + struct hpi_adapter_obj adapter[HPI_MAX_ADAPTERS]; + u16 gw_num_adapters; +}; + +static struct hpi_adapters_list adapters; + +/** +* Given an HPI Message that was sent out and a response that was received, +* validate that the response has the correct fields filled in, +* i.e ObjectType, Function etc +**/ +u16 hpi_validate_response(struct hpi_message *phm, struct hpi_response *phr) +{ + u16 error = 0; + + if ((phr->type != HPI_TYPE_RESPONSE) + || (phr->object != phm->object) + || (phr->function != phm->function)) + error = HPI_ERROR_INVALID_RESPONSE; + + return error; +} + +u16 hpi_add_adapter(struct hpi_adapter_obj *pao) +{ + u16 retval = 0; + /*HPI_ASSERT(pao->wAdapterType); */ + + hpios_alistlock_lock(&adapters); + + if (pao->index >= HPI_MAX_ADAPTERS) { + retval = HPI_ERROR_BAD_ADAPTER_NUMBER; + goto unlock; + } + + if (adapters.adapter[pao->index].adapter_type) { + { + retval = HPI_DUPLICATE_ADAPTER_NUMBER; + goto unlock; + } + } + adapters.adapter[pao->index] = *pao; + hpios_dsplock_init(&adapters.adapter[pao->index]); + adapters.gw_num_adapters++; + +unlock: + hpios_alistlock_un_lock(&adapters); + return retval; +} + +void hpi_delete_adapter(struct hpi_adapter_obj *pao) +{ + memset(pao, 0, sizeof(struct hpi_adapter_obj)); + + hpios_alistlock_lock(&adapters); + adapters.gw_num_adapters--; /* dec the number of adapters */ + hpios_alistlock_un_lock(&adapters); +} + +/** +* FindAdapter returns a pointer to the struct hpi_adapter_obj with +* index wAdapterIndex in an HPI_ADAPTERS_LIST structure. +* +*/ +struct hpi_adapter_obj *hpi_find_adapter(u16 adapter_index) +{ + struct hpi_adapter_obj *pao = NULL; + + if (adapter_index >= HPI_MAX_ADAPTERS) { + HPI_DEBUG_LOG(VERBOSE, "find_adapter invalid index %d ", + adapter_index); + return NULL; + } + + pao = &adapters.adapter[adapter_index]; + if (pao->adapter_type != 0) { + /* + HPI_DEBUG_LOG(VERBOSE, "Found adapter index %d\n", + wAdapterIndex); + */ + return pao; + } else { + /* + HPI_DEBUG_LOG(VERBOSE, "No adapter index %d\n", + wAdapterIndex); + */ + return NULL; + } +} + +/** +* +* wipe an HPI_ADAPTERS_LIST structure. +* +**/ +static void wipe_adapter_list(void + ) +{ + memset(&adapters, 0, sizeof(adapters)); +} + +/** +* SubSysGetAdapters fills awAdapterList in an struct hpi_response structure +* with all adapters in the given HPI_ADAPTERS_LIST. +* +*/ +static void subsys_get_adapters(struct hpi_response *phr) +{ + /* fill in the response adapter array with the position */ + /* identified by the adapter number/index of the adapters in */ + /* this HPI */ + /* i.e. if we have an A120 with it's jumper set to */ + /* Adapter Number 2 then put an Adapter type A120 in the */ + /* array in position 1 */ + /* NOTE: AdapterNumber is 1..N, Index is 0..N-1 */ + + /* input: NONE */ + /* output: wNumAdapters */ + /* awAdapter[] */ + /* */ + + short i; + struct hpi_adapter_obj *pao = NULL; + + HPI_DEBUG_LOG(VERBOSE, "subsys_get_adapters\n"); + + /* for each adapter, place it's type in the position of the array */ + /* corresponding to it's adapter number */ + for (i = 0; i < adapters.gw_num_adapters; i++) { + pao = &adapters.adapter[i]; + if (phr->u.s.aw_adapter_list[pao->index] != 0) { + phr->error = HPI_DUPLICATE_ADAPTER_NUMBER; + phr->specific_error = pao->index; + return; + } + phr->u.s.aw_adapter_list[pao->index] = pao->adapter_type; + } + + phr->u.s.num_adapters = adapters.gw_num_adapters; + phr->error = 0; /* the function completed OK; */ +} + +static unsigned int control_cache_alloc_check(struct hpi_control_cache *pC) +{ + unsigned int i; + int cached = 0; + if (!pC) + return 0; + if ((!pC->init) && (pC->p_cache != NULL) && (pC->control_count) + && (pC->cache_size_in_bytes) + ) { + u32 *p_master_cache; + pC->init = 1; + + p_master_cache = (u32 *)pC->p_cache; + HPI_DEBUG_LOG(VERBOSE, "check %d controls\n", + pC->control_count); + for (i = 0; i < pC->control_count; i++) { + struct hpi_control_cache_info *info = + (struct hpi_control_cache_info *) + p_master_cache; + + if (info->control_type) { + pC->p_info[i] = info; + cached++; + } else + pC->p_info[i] = NULL; + + if (info->size_in32bit_words) + p_master_cache += info->size_in32bit_words; + else + p_master_cache += + sizeof(struct + hpi_control_cache_single) / + sizeof(u32); + + HPI_DEBUG_LOG(VERBOSE, + "cached %d, pinfo %p index %d type %d\n", + cached, pC->p_info[i], info->control_index, + info->control_type); + } + /* + We didn't find anything to cache, so try again later ! + */ + if (!cached) + pC->init = 0; + } + return pC->init; +} + +/** Find a control. +*/ +static short find_control(struct hpi_message *phm, + struct hpi_control_cache *p_cache, struct hpi_control_cache_info **pI, + u16 *pw_control_index) +{ + *pw_control_index = phm->obj_index; + + if (!control_cache_alloc_check(p_cache)) { + HPI_DEBUG_LOG(VERBOSE, + "control_cache_alloc_check() failed. adap%d ci%d\n", + phm->adapter_index, *pw_control_index); + return 0; + } + + *pI = p_cache->p_info[*pw_control_index]; + if (!*pI) { + HPI_DEBUG_LOG(VERBOSE, "uncached adap %d, control %d\n", + phm->adapter_index, *pw_control_index); + return 0; + } else { + HPI_DEBUG_LOG(VERBOSE, "find_control() type %d\n", + (*pI)->control_type); + } + return 1; +} + +/** Used by the kernel driver to figure out if a buffer needs mapping. + */ +short hpi_check_buffer_mapping(struct hpi_control_cache *p_cache, + struct hpi_message *phm, void **p, unsigned int *pN) +{ + *pN = 0; + *p = NULL; + if ((phm->function == HPI_CONTROL_GET_STATE) + && (phm->object == HPI_OBJ_CONTROLEX) + ) { + u16 control_index; + struct hpi_control_cache_info *pI; + + if (!find_control(phm, p_cache, &pI, &control_index)) + return 0; + } + return 0; +} + +/* allow unified treatment of several string fields within struct */ +#define HPICMN_PAD_OFS_AND_SIZE(m) {\ + offsetof(struct hpi_control_cache_pad, m), \ + sizeof(((struct hpi_control_cache_pad *)(NULL))->m) } + +struct pad_ofs_size { + unsigned int offset; + unsigned int field_size; +}; + +static struct pad_ofs_size pad_desc[] = { + HPICMN_PAD_OFS_AND_SIZE(c_channel), /* HPI_PAD_CHANNEL_NAME */ + HPICMN_PAD_OFS_AND_SIZE(c_artist), /* HPI_PAD_ARTIST */ + HPICMN_PAD_OFS_AND_SIZE(c_title), /* HPI_PAD_TITLE */ + HPICMN_PAD_OFS_AND_SIZE(c_comment), /* HPI_PAD_COMMENT */ +}; + +/** CheckControlCache checks the cache and fills the struct hpi_response + * accordingly. It returns one if a cache hit occurred, zero otherwise. + */ +short hpi_check_control_cache(struct hpi_control_cache *p_cache, + struct hpi_message *phm, struct hpi_response *phr) +{ + short found = 1; + u16 control_index; + struct hpi_control_cache_info *pI; + struct hpi_control_cache_single *pC; + struct hpi_control_cache_pad *p_pad; + + if (!find_control(phm, p_cache, &pI, &control_index)) + return 0; + + phr->error = 0; + + /* pC is the default cached control strucure. May be cast to + something else in the following switch statement. + */ + pC = (struct hpi_control_cache_single *)pI; + p_pad = (struct hpi_control_cache_pad *)pI; + + switch (pI->control_type) { + + case HPI_CONTROL_METER: + if (phm->u.c.attribute == HPI_METER_PEAK) { + phr->u.c.an_log_value[0] = pC->u.p.an_log_peak[0]; + phr->u.c.an_log_value[1] = pC->u.p.an_log_peak[1]; + } else if (phm->u.c.attribute == HPI_METER_RMS) { + phr->u.c.an_log_value[0] = pC->u.p.an_logRMS[0]; + phr->u.c.an_log_value[1] = pC->u.p.an_logRMS[1]; + } else + found = 0; + break; + case HPI_CONTROL_VOLUME: + if (phm->u.c.attribute == HPI_VOLUME_GAIN) { + phr->u.c.an_log_value[0] = pC->u.v.an_log[0]; + phr->u.c.an_log_value[1] = pC->u.v.an_log[1]; + } else + found = 0; + break; + case HPI_CONTROL_MULTIPLEXER: + if (phm->u.c.attribute == HPI_MULTIPLEXER_SOURCE) { + phr->u.c.param1 = pC->u.x.source_node_type; + phr->u.c.param2 = pC->u.x.source_node_index; + } else { + found = 0; + } + break; + case HPI_CONTROL_CHANNEL_MODE: + if (phm->u.c.attribute == HPI_CHANNEL_MODE_MODE) + phr->u.c.param1 = pC->u.m.mode; + else + found = 0; + break; + case HPI_CONTROL_LEVEL: + if (phm->u.c.attribute == HPI_LEVEL_GAIN) { + phr->u.c.an_log_value[0] = pC->u.l.an_log[0]; + phr->u.c.an_log_value[1] = pC->u.l.an_log[1]; + } else + found = 0; + break; + case HPI_CONTROL_TUNER: + { + struct hpi_control_cache_single *pCT = + (struct hpi_control_cache_single *)pI; + if (phm->u.c.attribute == HPI_TUNER_FREQ) + phr->u.c.param1 = pCT->u.t.freq_ink_hz; + else if (phm->u.c.attribute == HPI_TUNER_BAND) + phr->u.c.param1 = pCT->u.t.band; + else if ((phm->u.c.attribute == HPI_TUNER_LEVEL) + && (phm->u.c.param1 == + HPI_TUNER_LEVEL_AVERAGE)) + phr->u.c.param1 = pCT->u.t.level; + else + found = 0; + } + break; + case HPI_CONTROL_AESEBU_RECEIVER: + if (phm->u.c.attribute == HPI_AESEBURX_ERRORSTATUS) + phr->u.c.param1 = pC->u.aes3rx.error_status; + else if (phm->u.c.attribute == HPI_AESEBURX_FORMAT) + phr->u.c.param1 = pC->u.aes3rx.source; + else + found = 0; + break; + case HPI_CONTROL_AESEBU_TRANSMITTER: + if (phm->u.c.attribute == HPI_AESEBUTX_FORMAT) + phr->u.c.param1 = pC->u.aes3tx.format; + else + found = 0; + break; + case HPI_CONTROL_TONEDETECTOR: + if (phm->u.c.attribute == HPI_TONEDETECTOR_STATE) + phr->u.c.param1 = pC->u.tone.state; + else + found = 0; + break; + case HPI_CONTROL_SILENCEDETECTOR: + if (phm->u.c.attribute == HPI_SILENCEDETECTOR_STATE) { + phr->u.c.param1 = pC->u.silence.state; + phr->u.c.param2 = pC->u.silence.count; + } else + found = 0; + break; + case HPI_CONTROL_MICROPHONE: + if (phm->u.c.attribute == HPI_MICROPHONE_PHANTOM_POWER) + phr->u.c.param1 = pC->u.phantom_power.state; + else + found = 0; + break; + case HPI_CONTROL_SAMPLECLOCK: + if (phm->u.c.attribute == HPI_SAMPLECLOCK_SOURCE) + phr->u.c.param1 = pC->u.clk.source; + else if (phm->u.c.attribute == HPI_SAMPLECLOCK_SOURCE_INDEX) { + if (pC->u.clk.source_index == + HPI_ERROR_ILLEGAL_CACHE_VALUE) { + phr->u.c.param1 = 0; + phr->error = HPI_ERROR_INVALID_OPERATION; + } else + phr->u.c.param1 = pC->u.clk.source_index; + } else if (phm->u.c.attribute == HPI_SAMPLECLOCK_SAMPLERATE) + phr->u.c.param1 = pC->u.clk.sample_rate; + else + found = 0; + break; + case HPI_CONTROL_PAD: + + if (!(p_pad->field_valid_flags & (1 << + HPI_CTL_ATTR_INDEX(phm->u.c. + attribute)))) { + phr->error = HPI_ERROR_INVALID_CONTROL_ATTRIBUTE; + break; + } + + if (phm->u.c.attribute == HPI_PAD_PROGRAM_ID) + phr->u.c.param1 = p_pad->pI; + else if (phm->u.c.attribute == HPI_PAD_PROGRAM_TYPE) + phr->u.c.param1 = p_pad->pTY; + else { + unsigned int index = + HPI_CTL_ATTR_INDEX(phm->u.c.attribute) - 1; + unsigned int offset = phm->u.c.param1; + unsigned int pad_string_len, field_size; + char *pad_string; + unsigned int tocopy; + + HPI_DEBUG_LOG(VERBOSE, "PADS HPI_PADS_ %d\n", + phm->u.c.attribute); + + if (index > ARRAY_SIZE(pad_desc) - 1) { + phr->error = + HPI_ERROR_INVALID_CONTROL_ATTRIBUTE; + break; + } + + pad_string = ((char *)p_pad) + pad_desc[index].offset; + field_size = pad_desc[index].field_size; + /* Ensure null terminator */ + pad_string[field_size - 1] = 0; + + pad_string_len = strlen(pad_string) + 1; + + if (offset > pad_string_len) { + phr->error = HPI_ERROR_INVALID_CONTROL_VALUE; + break; + } + + tocopy = pad_string_len - offset; + if (tocopy > sizeof(phr->u.cu.chars8.sz_data)) + tocopy = sizeof(phr->u.cu.chars8.sz_data); + + HPI_DEBUG_LOG(VERBOSE, + "PADS memcpy(%d), offset %d \n", tocopy, + offset); + memcpy(phr->u.cu.chars8.sz_data, &pad_string[offset], + tocopy); + + phr->u.cu.chars8.remaining_chars = + pad_string_len - offset - tocopy; + } + break; + default: + found = 0; + break; + } + + if (found) + HPI_DEBUG_LOG(VERBOSE, + "cached adap %d, ctl %d, type %d, attr %d\n", + phm->adapter_index, pI->control_index, + pI->control_type, phm->u.c.attribute); + else + HPI_DEBUG_LOG(VERBOSE, + "uncached adap %d, ctl %d, ctl type %d\n", + phm->adapter_index, pI->control_index, + pI->control_type); + + if (found) + phr->size = + sizeof(struct hpi_response_header) + + sizeof(struct hpi_control_res); + + return found; +} + +/** Updates the cache with Set values. + +Only update if no error. +Volume and Level return the limited values in the response, so use these +Multiplexer does so use sent values +*/ +void hpi_sync_control_cache(struct hpi_control_cache *p_cache, + struct hpi_message *phm, struct hpi_response *phr) +{ + u16 control_index; + struct hpi_control_cache_single *pC; + struct hpi_control_cache_info *pI; + + if (!find_control(phm, p_cache, &pI, &control_index)) + return; + + /* pC is the default cached control strucure. + May be cast to something else in the following switch statement. + */ + pC = (struct hpi_control_cache_single *)pI; + + switch (pI->control_type) { + case HPI_CONTROL_VOLUME: + if (phm->u.c.attribute == HPI_VOLUME_GAIN) { + pC->u.v.an_log[0] = phr->u.c.an_log_value[0]; + pC->u.v.an_log[1] = phr->u.c.an_log_value[1]; + } + break; + case HPI_CONTROL_MULTIPLEXER: + /* mux does not return its setting on Set command. */ + if (phr->error) + return; + if (phm->u.c.attribute == HPI_MULTIPLEXER_SOURCE) { + pC->u.x.source_node_type = (u16)phm->u.c.param1; + pC->u.x.source_node_index = (u16)phm->u.c.param2; + } + break; + case HPI_CONTROL_CHANNEL_MODE: + /* mode does not return its setting on Set command. */ + if (phr->error) + return; + if (phm->u.c.attribute == HPI_CHANNEL_MODE_MODE) + pC->u.m.mode = (u16)phm->u.c.param1; + break; + case HPI_CONTROL_LEVEL: + if (phm->u.c.attribute == HPI_LEVEL_GAIN) { + pC->u.v.an_log[0] = phr->u.c.an_log_value[0]; + pC->u.v.an_log[1] = phr->u.c.an_log_value[1]; + } + break; + case HPI_CONTROL_MICROPHONE: + if (phm->u.c.attribute == HPI_MICROPHONE_PHANTOM_POWER) + pC->u.phantom_power.state = (u16)phm->u.c.param1; + break; + case HPI_CONTROL_AESEBU_TRANSMITTER: + if (phr->error) + return; + if (phm->u.c.attribute == HPI_AESEBUTX_FORMAT) + pC->u.aes3tx.format = phm->u.c.param1; + break; + case HPI_CONTROL_AESEBU_RECEIVER: + if (phr->error) + return; + if (phm->u.c.attribute == HPI_AESEBURX_FORMAT) + pC->u.aes3rx.source = phm->u.c.param1; + break; + case HPI_CONTROL_SAMPLECLOCK: + if (phr->error) + return; + if (phm->u.c.attribute == HPI_SAMPLECLOCK_SOURCE) + pC->u.clk.source = (u16)phm->u.c.param1; + else if (phm->u.c.attribute == HPI_SAMPLECLOCK_SOURCE_INDEX) + pC->u.clk.source_index = (u16)phm->u.c.param1; + else if (phm->u.c.attribute == HPI_SAMPLECLOCK_SAMPLERATE) + pC->u.clk.sample_rate = phm->u.c.param1; + break; + default: + break; + } +} + +struct hpi_control_cache *hpi_alloc_control_cache(const u32 + number_of_controls, const u32 size_in_bytes, + struct hpi_control_cache_info *pDSP_control_buffer) +{ + struct hpi_control_cache *p_cache = + kmalloc(sizeof(*p_cache), GFP_KERNEL); + p_cache->cache_size_in_bytes = size_in_bytes; + p_cache->control_count = number_of_controls; + p_cache->p_cache = + (struct hpi_control_cache_single *)pDSP_control_buffer; + p_cache->init = 0; + p_cache->p_info = + kmalloc(sizeof(*p_cache->p_info) * p_cache->control_count, + GFP_KERNEL); + return p_cache; +} + +void hpi_free_control_cache(struct hpi_control_cache *p_cache) +{ + if ((p_cache->init) && (p_cache->p_info)) { + kfree(p_cache->p_info); + p_cache->p_info = NULL; + p_cache->init = 0; + kfree(p_cache); + } +} + +static void subsys_message(struct hpi_message *phm, struct hpi_response *phr) +{ + + switch (phm->function) { + case HPI_SUBSYS_OPEN: + case HPI_SUBSYS_CLOSE: + case HPI_SUBSYS_DRIVER_UNLOAD: + phr->error = 0; + break; + case HPI_SUBSYS_DRIVER_LOAD: + wipe_adapter_list(); + hpios_alistlock_init(&adapters); + phr->error = 0; + break; + case HPI_SUBSYS_GET_INFO: + subsys_get_adapters(phr); + break; + case HPI_SUBSYS_CREATE_ADAPTER: + case HPI_SUBSYS_DELETE_ADAPTER: + phr->error = 0; + break; + default: + phr->error = HPI_ERROR_INVALID_FUNC; + break; + } +} + +void HPI_COMMON(struct hpi_message *phm, struct hpi_response *phr) +{ + switch (phm->type) { + case HPI_TYPE_MESSAGE: + switch (phm->object) { + case HPI_OBJ_SUBSYSTEM: + subsys_message(phm, phr); + break; + } + break; + + default: + phr->error = HPI_ERROR_INVALID_TYPE; + break; + } +} diff --git a/sound/pci/asihpi/hpicmn.h b/sound/pci/asihpi/hpicmn.h new file mode 100644 index 00000000000..6229022f56c --- /dev/null +++ b/sound/pci/asihpi/hpicmn.h @@ -0,0 +1,64 @@ +/** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +*/ + +struct hpi_adapter_obj { + struct hpi_pci pci; /* PCI info - bus#,dev#,address etc */ + u16 adapter_type; /* ASI6701 etc */ + u16 index; /* */ + u16 open; /* =1 when adapter open */ + u16 mixer_open; + + struct hpios_spinlock dsp_lock; + + u16 dsp_crashed; + u16 has_control_cache; + void *priv; +}; + +struct hpi_control_cache { + u32 init; /**< indicates whether the + structures are initialized */ + u32 control_count; + u32 cache_size_in_bytes; + struct hpi_control_cache_info + **p_info; /**< pointer to allocated memory of + lookup pointers. */ + struct hpi_control_cache_single + *p_cache; /**< pointer to DSP's control cache. */ +}; + +struct hpi_adapter_obj *hpi_find_adapter(u16 adapter_index); +u16 hpi_add_adapter(struct hpi_adapter_obj *pao); + +void hpi_delete_adapter(struct hpi_adapter_obj *pao); + +short hpi_check_control_cache(struct hpi_control_cache *pC, + struct hpi_message *phm, struct hpi_response *phr); +struct hpi_control_cache *hpi_alloc_control_cache(const u32 + number_of_controls, const u32 size_in_bytes, + struct hpi_control_cache_info + *pDSP_control_buffer); +void hpi_free_control_cache(struct hpi_control_cache *p_cache); + +void hpi_sync_control_cache(struct hpi_control_cache *pC, + struct hpi_message *phm, struct hpi_response *phr); +u16 hpi_validate_response(struct hpi_message *phm, struct hpi_response *phr); +short hpi_check_buffer_mapping(struct hpi_control_cache *p_cache, + struct hpi_message *phm, void **p, unsigned int *pN); diff --git a/sound/pci/asihpi/hpidebug.c b/sound/pci/asihpi/hpidebug.c new file mode 100644 index 00000000000..4cd85a401b3 --- /dev/null +++ b/sound/pci/asihpi/hpidebug.c @@ -0,0 +1,225 @@ +/************************************************************************ + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +Debug macro translation. + +************************************************************************/ + +#include "hpi_internal.h" +#include "hpidebug.h" + +/* Debug level; 0 quiet; 1 informative, 2 debug, 3 verbose debug. */ +int hpi_debug_level = HPI_DEBUG_LEVEL_DEFAULT; + +void hpi_debug_init(void) +{ + printk(KERN_INFO "debug start\n"); +} + +int hpi_debug_level_set(int level) +{ + int old_level; + + old_level = hpi_debug_level; + hpi_debug_level = level; + return old_level; +} + +int hpi_debug_level_get(void) +{ + return hpi_debug_level; +} + +#ifdef HPIOS_DEBUG_PRINT +/* implies OS has no printf-like function */ +#include + +void hpi_debug_printf(char *fmt, ...) +{ + va_list arglist; + char buffer[128]; + + va_start(arglist, fmt); + + if (buffer[0]) + HPIOS_DEBUG_PRINT(buffer); + va_end(arglist); +} +#endif + +struct treenode { + void *array; + unsigned int num_elements; +}; + +#define make_treenode_from_array(nodename, array) \ +static void *tmp_strarray_##nodename[] = array; \ +static struct treenode nodename = { \ + &tmp_strarray_##nodename, \ + ARRAY_SIZE(tmp_strarray_##nodename) \ +}; + +#define get_treenode_elem(node_ptr, idx, type) \ + (&(*((type *)(node_ptr)->array)[idx])) + +make_treenode_from_array(hpi_control_type_strings, HPI_CONTROL_TYPE_STRINGS) + + make_treenode_from_array(hpi_subsys_strings, HPI_SUBSYS_STRINGS) + make_treenode_from_array(hpi_adapter_strings, HPI_ADAPTER_STRINGS) + make_treenode_from_array(hpi_istream_strings, HPI_ISTREAM_STRINGS) + make_treenode_from_array(hpi_ostream_strings, HPI_OSTREAM_STRINGS) + make_treenode_from_array(hpi_mixer_strings, HPI_MIXER_STRINGS) + make_treenode_from_array(hpi_node_strings, + { + "NODE is invalid object"}) + + make_treenode_from_array(hpi_control_strings, HPI_CONTROL_STRINGS) + make_treenode_from_array(hpi_nvmemory_strings, HPI_OBJ_STRINGS) + make_treenode_from_array(hpi_digitalio_strings, HPI_DIGITALIO_STRINGS) + make_treenode_from_array(hpi_watchdog_strings, HPI_WATCHDOG_STRINGS) + make_treenode_from_array(hpi_clock_strings, HPI_CLOCK_STRINGS) + make_treenode_from_array(hpi_profile_strings, HPI_PROFILE_STRINGS) + make_treenode_from_array(hpi_asyncevent_strings, HPI_ASYNCEVENT_STRINGS) +#define HPI_FUNCTION_STRINGS \ +{ \ + &hpi_subsys_strings,\ + &hpi_adapter_strings,\ + &hpi_ostream_strings,\ + &hpi_istream_strings,\ + &hpi_mixer_strings,\ + &hpi_node_strings,\ + &hpi_control_strings,\ + &hpi_nvmemory_strings,\ + &hpi_digitalio_strings,\ + &hpi_watchdog_strings,\ + &hpi_clock_strings,\ + &hpi_profile_strings,\ + &hpi_control_strings, \ + &hpi_asyncevent_strings \ +}; + make_treenode_from_array(hpi_function_strings, HPI_FUNCTION_STRINGS) + + compile_time_assert(HPI_OBJ_MAXINDEX == 14, obj_list_doesnt_match); + +static char *hpi_function_string(unsigned int function) +{ + unsigned int object; + struct treenode *tmp; + + object = function / HPI_OBJ_FUNCTION_SPACING; + function = function - object * HPI_OBJ_FUNCTION_SPACING; + + if (object == 0 || object == HPI_OBJ_NODE + || object > hpi_function_strings.num_elements) + return "invalid object"; + + tmp = get_treenode_elem(&hpi_function_strings, object - 1, + struct treenode *); + + if (function == 0 || function > tmp->num_elements) + return "invalid function"; + + return get_treenode_elem(tmp, function - 1, char *); +} + +void hpi_debug_message(struct hpi_message *phm, char *sz_fileline) +{ + if (phm) { + if ((phm->object <= HPI_OBJ_MAXINDEX) && phm->object) { + u16 index = 0; + u16 attrib = 0; + int is_control = 0; + + index = phm->obj_index; + switch (phm->object) { + case HPI_OBJ_ADAPTER: + case HPI_OBJ_PROFILE: + break; + case HPI_OBJ_MIXER: + if (phm->function == + HPI_MIXER_GET_CONTROL_BY_INDEX) + index = phm->u.m.control_index; + break; + case HPI_OBJ_OSTREAM: + case HPI_OBJ_ISTREAM: + break; + + case HPI_OBJ_CONTROLEX: + case HPI_OBJ_CONTROL: + if (phm->version == 1) + attrib = HPI_CTL_ATTR(UNIVERSAL, 1); + else + attrib = phm->u.c.attribute; + is_control = 1; + break; + default: + break; + } + + if (is_control && (attrib & 0xFF00)) { + int control_type = (attrib & 0xFF00) >> 8; + int attr_index = HPI_CTL_ATTR_INDEX(attrib); + /* note the KERN facility level + is in szFileline already */ + printk("%s adapter %d %s " + "ctrl_index x%04x %s %d\n", + sz_fileline, phm->adapter_index, + hpi_function_string(phm->function), + index, + get_treenode_elem + (&hpi_control_type_strings, + control_type, char *), + attr_index); + + } else + printk("%s adapter %d %s " + "idx x%04x attr x%04x \n", + sz_fileline, phm->adapter_index, + hpi_function_string(phm->function), + index, attrib); + } else { + printk("adap=%d, invalid obj=%d, func=0x%x\n", + phm->adapter_index, phm->object, + phm->function); + } + } else + printk(KERN_ERR + "NULL message pointer to hpi_debug_message!\n"); +} + +void hpi_debug_data(u16 *pdata, u32 len) +{ + u32 i; + int j; + int k; + int lines; + int cols = 8; + + lines = (len + cols - 1) / cols; + if (lines > 8) + lines = 8; + + for (i = 0, j = 0; j < lines; j++) { + printk(KERN_DEBUG "%p:", (pdata + i)); + + for (k = 0; k < cols && i < len; i++, k++) + printk("%s%04x", k == 0 ? "" : " ", pdata[i]); + + printk("\n"); + } +} diff --git a/sound/pci/asihpi/hpidebug.h b/sound/pci/asihpi/hpidebug.h new file mode 100644 index 00000000000..44dccadcc25 --- /dev/null +++ b/sound/pci/asihpi/hpidebug.h @@ -0,0 +1,385 @@ +/***************************************************************************** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +Debug macros. + +*****************************************************************************/ + +#ifndef _HPIDEBUG_H +#define _HPIDEBUG_H + +#include "hpi_internal.h" + +/* Define debugging levels. */ +enum { HPI_DEBUG_LEVEL_ERROR = 0, /* always log errors */ + HPI_DEBUG_LEVEL_WARNING = 1, + HPI_DEBUG_LEVEL_NOTICE = 2, + HPI_DEBUG_LEVEL_INFO = 3, + HPI_DEBUG_LEVEL_DEBUG = 4, + HPI_DEBUG_LEVEL_VERBOSE = 5 /* same printk level as DEBUG */ +}; + +#define HPI_DEBUG_LEVEL_DEFAULT HPI_DEBUG_LEVEL_NOTICE + +/* an OS can define an extra flag string that is appended to + the start of each message, eg see hpios_linux.h */ + +#ifdef SOURCEFILE_NAME +#define FILE_LINE SOURCEFILE_NAME ":" __stringify(__LINE__) " " +#else +#define FILE_LINE __FILE__ ":" __stringify(__LINE__) " " +#endif + +#if defined(HPI_DEBUG) && defined(_WINDOWS) +#define HPI_DEBUGBREAK() debug_break() +#else +#define HPI_DEBUGBREAK() +#endif + +#define HPI_DEBUG_ASSERT(expression) \ + do { \ + if (!(expression)) {\ + printk(KERN_ERR FILE_LINE\ + "ASSERT " __stringify(expression));\ + HPI_DEBUGBREAK();\ + } \ + } while (0) + +#define HPI_DEBUG_LOG(level, ...) \ + do { \ + if (hpi_debug_level >= HPI_DEBUG_LEVEL_##level) { \ + printk(HPI_DEBUG_FLAG_##level \ + FILE_LINE __VA_ARGS__); \ + } \ + } while (0) + +void hpi_debug_init(void); +int hpi_debug_level_set(int level); +int hpi_debug_level_get(void); +/* needed by Linux driver for dynamic debug level changes */ +extern int hpi_debug_level; + +void hpi_debug_message(struct hpi_message *phm, char *sz_fileline); + +void hpi_debug_data(u16 *pdata, u32 len); + +#define HPI_DEBUG_DATA(pdata, len) \ + do { \ + if (hpi_debug_level >= HPI_DEBUG_LEVEL_VERBOSE) \ + hpi_debug_data(pdata, len); \ + } while (0) + +#define HPI_DEBUG_MESSAGE(level, phm) \ + do { \ + if (hpi_debug_level >= HPI_DEBUG_LEVEL_##level) { \ + hpi_debug_message(phm,HPI_DEBUG_FLAG_##level \ + FILE_LINE __stringify(level));\ + } \ + } while (0) + +#define HPI_DEBUG_RESPONSE(phr) \ + do { \ + if ((hpi_debug_level >= HPI_DEBUG_LEVEL_DEBUG) && (phr->error))\ + HPI_DEBUG_LOG(ERROR, \ + "HPI response - error# %d\n", \ + phr->error); \ + else if (hpi_debug_level >= HPI_DEBUG_LEVEL_VERBOSE) \ + HPI_DEBUG_LOG(VERBOSE, "HPI response OK\n");\ + } while (0) + +#ifndef compile_time_assert +#define compile_time_assert(cond, msg) \ + typedef char msg[(cond) ? 1 : -1] +#endif + + /* check that size is exactly some number */ +#define function_count_check(sym, size) \ + compile_time_assert((sym##_FUNCTION_COUNT) == (size),\ + strings_match_defs_##sym) + +/* These strings should be generated using a macro which defines + the corresponding symbol values. */ +#define HPI_OBJ_STRINGS \ +{ \ + "HPI_OBJ_SUBSYSTEM", \ + "HPI_OBJ_ADAPTER", \ + "HPI_OBJ_OSTREAM", \ + "HPI_OBJ_ISTREAM", \ + "HPI_OBJ_MIXER", \ + "HPI_OBJ_NODE", \ + "HPI_OBJ_CONTROL", \ + "HPI_OBJ_NVMEMORY", \ + "HPI_OBJ_DIGITALIO", \ + "HPI_OBJ_WATCHDOG", \ + "HPI_OBJ_CLOCK", \ + "HPI_OBJ_PROFILE", \ + "HPI_OBJ_CONTROLEX" \ +} + +#define HPI_SUBSYS_STRINGS \ +{ \ + "HPI_SUBSYS_OPEN", \ + "HPI_SUBSYS_GET_VERSION", \ + "HPI_SUBSYS_GET_INFO", \ + "HPI_SUBSYS_FIND_ADAPTERS", \ + "HPI_SUBSYS_CREATE_ADAPTER",\ + "HPI_SUBSYS_CLOSE", \ + "HPI_SUBSYS_DELETE_ADAPTER", \ + "HPI_SUBSYS_DRIVER_LOAD", \ + "HPI_SUBSYS_DRIVER_UNLOAD", \ + "HPI_SUBSYS_READ_PORT_8", \ + "HPI_SUBSYS_WRITE_PORT_8", \ + "HPI_SUBSYS_GET_NUM_ADAPTERS",\ + "HPI_SUBSYS_GET_ADAPTER", \ + "HPI_SUBSYS_SET_NETWORK_INTERFACE"\ +} +function_count_check(HPI_SUBSYS, 14); + +#define HPI_ADAPTER_STRINGS \ +{ \ + "HPI_ADAPTER_OPEN", \ + "HPI_ADAPTER_CLOSE", \ + "HPI_ADAPTER_GET_INFO", \ + "HPI_ADAPTER_GET_ASSERT", \ + "HPI_ADAPTER_TEST_ASSERT", \ + "HPI_ADAPTER_SET_MODE", \ + "HPI_ADAPTER_GET_MODE", \ + "HPI_ADAPTER_ENABLE_CAPABILITY",\ + "HPI_ADAPTER_SELFTEST", \ + "HPI_ADAPTER_FIND_OBJECT", \ + "HPI_ADAPTER_QUERY_FLASH", \ + "HPI_ADAPTER_START_FLASH", \ + "HPI_ADAPTER_PROGRAM_FLASH", \ + "HPI_ADAPTER_SET_PROPERTY", \ + "HPI_ADAPTER_GET_PROPERTY", \ + "HPI_ADAPTER_ENUM_PROPERTY", \ + "HPI_ADAPTER_MODULE_INFO", \ + "HPI_ADAPTER_DEBUG_READ" \ +} + +function_count_check(HPI_ADAPTER, 18); + +#define HPI_OSTREAM_STRINGS \ +{ \ + "HPI_OSTREAM_OPEN", \ + "HPI_OSTREAM_CLOSE", \ + "HPI_OSTREAM_WRITE", \ + "HPI_OSTREAM_START", \ + "HPI_OSTREAM_STOP", \ + "HPI_OSTREAM_RESET", \ + "HPI_OSTREAM_GET_INFO", \ + "HPI_OSTREAM_QUERY_FORMAT", \ + "HPI_OSTREAM_DATA", \ + "HPI_OSTREAM_SET_VELOCITY", \ + "HPI_OSTREAM_SET_PUNCHINOUT", \ + "HPI_OSTREAM_SINEGEN", \ + "HPI_OSTREAM_ANC_RESET", \ + "HPI_OSTREAM_ANC_GET_INFO", \ + "HPI_OSTREAM_ANC_READ", \ + "HPI_OSTREAM_SET_TIMESCALE",\ + "HPI_OSTREAM_SET_FORMAT", \ + "HPI_OSTREAM_HOSTBUFFER_ALLOC", \ + "HPI_OSTREAM_HOSTBUFFER_FREE", \ + "HPI_OSTREAM_GROUP_ADD",\ + "HPI_OSTREAM_GROUP_GETMAP", \ + "HPI_OSTREAM_GROUP_RESET", \ + "HPI_OSTREAM_HOSTBUFFER_GET_INFO", \ + "HPI_OSTREAM_WAIT_START", \ +} +function_count_check(HPI_OSTREAM, 24); + +#define HPI_ISTREAM_STRINGS \ +{ \ + "HPI_ISTREAM_OPEN", \ + "HPI_ISTREAM_CLOSE", \ + "HPI_ISTREAM_SET_FORMAT", \ + "HPI_ISTREAM_READ", \ + "HPI_ISTREAM_START", \ + "HPI_ISTREAM_STOP", \ + "HPI_ISTREAM_RESET", \ + "HPI_ISTREAM_GET_INFO", \ + "HPI_ISTREAM_QUERY_FORMAT", \ + "HPI_ISTREAM_ANC_RESET", \ + "HPI_ISTREAM_ANC_GET_INFO", \ + "HPI_ISTREAM_ANC_WRITE", \ + "HPI_ISTREAM_HOSTBUFFER_ALLOC",\ + "HPI_ISTREAM_HOSTBUFFER_FREE", \ + "HPI_ISTREAM_GROUP_ADD", \ + "HPI_ISTREAM_GROUP_GETMAP", \ + "HPI_ISTREAM_GROUP_RESET", \ + "HPI_ISTREAM_HOSTBUFFER_GET_INFO", \ + "HPI_ISTREAM_WAIT_START", \ +} +function_count_check(HPI_ISTREAM, 19); + +#define HPI_MIXER_STRINGS \ +{ \ + "HPI_MIXER_OPEN", \ + "HPI_MIXER_CLOSE", \ + "HPI_MIXER_GET_INFO", \ + "HPI_MIXER_GET_NODE_INFO", \ + "HPI_MIXER_GET_CONTROL", \ + "HPI_MIXER_SET_CONNECTION", \ + "HPI_MIXER_GET_CONNECTIONS", \ + "HPI_MIXER_GET_CONTROL_BY_INDEX", \ + "HPI_MIXER_GET_CONTROL_ARRAY_BY_INDEX", \ + "HPI_MIXER_GET_CONTROL_MULTIPLE_VALUES", \ + "HPI_MIXER_STORE", \ +} +function_count_check(HPI_MIXER, 11); + +#define HPI_CONTROL_STRINGS \ +{ \ + "HPI_CONTROL_GET_INFO", \ + "HPI_CONTROL_GET_STATE", \ + "HPI_CONTROL_SET_STATE" \ +} +function_count_check(HPI_CONTROL, 3); + +#define HPI_NVMEMORY_STRINGS \ +{ \ + "HPI_NVMEMORY_OPEN", \ + "HPI_NVMEMORY_READ_BYTE", \ + "HPI_NVMEMORY_WRITE_BYTE" \ +} +function_count_check(HPI_NVMEMORY, 3); + +#define HPI_DIGITALIO_STRINGS \ +{ \ + "HPI_GPIO_OPEN", \ + "HPI_GPIO_READ_BIT", \ + "HPI_GPIO_WRITE_BIT", \ + "HPI_GPIO_READ_ALL", \ + "HPI_GPIO_WRITE_STATUS"\ +} +function_count_check(HPI_GPIO, 5); + +#define HPI_WATCHDOG_STRINGS \ +{ \ + "HPI_WATCHDOG_OPEN", \ + "HPI_WATCHDOG_SET_TIME", \ + "HPI_WATCHDOG_PING" \ +} + +#define HPI_CLOCK_STRINGS \ +{ \ + "HPI_CLOCK_OPEN", \ + "HPI_CLOCK_SET_TIME", \ + "HPI_CLOCK_GET_TIME" \ +} + +#define HPI_PROFILE_STRINGS \ +{ \ + "HPI_PROFILE_OPEN_ALL", \ + "HPI_PROFILE_START_ALL", \ + "HPI_PROFILE_STOP_ALL", \ + "HPI_PROFILE_GET", \ + "HPI_PROFILE_GET_IDLECOUNT", \ + "HPI_PROFILE_GET_NAME", \ + "HPI_PROFILE_GET_UTILIZATION" \ +} +function_count_check(HPI_PROFILE, 7); + +#define HPI_ASYNCEVENT_STRINGS \ +{ \ + "HPI_ASYNCEVENT_OPEN",\ + "HPI_ASYNCEVENT_CLOSE ",\ + "HPI_ASYNCEVENT_WAIT",\ + "HPI_ASYNCEVENT_GETCOUNT",\ + "HPI_ASYNCEVENT_GET",\ + "HPI_ASYNCEVENT_SENDEVENTS"\ +} +function_count_check(HPI_ASYNCEVENT, 6); + +#define HPI_CONTROL_TYPE_STRINGS \ +{ \ + "null control", \ + "HPI_CONTROL_CONNECTION", \ + "HPI_CONTROL_VOLUME", \ + "HPI_CONTROL_METER", \ + "HPI_CONTROL_MUTE", \ + "HPI_CONTROL_MULTIPLEXER", \ + "HPI_CONTROL_AESEBU_TRANSMITTER", \ + "HPI_CONTROL_AESEBU_RECEIVER", \ + "HPI_CONTROL_LEVEL", \ + "HPI_CONTROL_TUNER", \ + "HPI_CONTROL_ONOFFSWITCH", \ + "HPI_CONTROL_VOX", \ + "HPI_CONTROL_AES18_TRANSMITTER", \ + "HPI_CONTROL_AES18_RECEIVER", \ + "HPI_CONTROL_AES18_BLOCKGENERATOR", \ + "HPI_CONTROL_CHANNEL_MODE", \ + "HPI_CONTROL_BITSTREAM", \ + "HPI_CONTROL_SAMPLECLOCK", \ + "HPI_CONTROL_MICROPHONE", \ + "HPI_CONTROL_PARAMETRIC_EQ", \ + "HPI_CONTROL_COMPANDER", \ + "HPI_CONTROL_COBRANET", \ + "HPI_CONTROL_TONE_DETECT", \ + "HPI_CONTROL_SILENCE_DETECT", \ + "HPI_CONTROL_PAD", \ + "HPI_CONTROL_SRC" ,\ + "HPI_CONTROL_UNIVERSAL" \ +} + +compile_time_assert((HPI_CONTROL_LAST_INDEX + 1 == 27), + controltype_strings_match_defs); + +#define HPI_SOURCENODE_STRINGS \ +{ \ + "no source", \ + "HPI_SOURCENODE_OSTREAM", \ + "HPI_SOURCENODE_LINEIN", \ + "HPI_SOURCENODE_AESEBU_IN", \ + "HPI_SOURCENODE_TUNER", \ + "HPI_SOURCENODE_RF", \ + "HPI_SOURCENODE_CLOCK_SOURCE", \ + "HPI_SOURCENODE_RAW_BITSTREAM", \ + "HPI_SOURCENODE_MICROPHONE", \ + "HPI_SOURCENODE_COBRANET", \ + "HPI_SOURCENODE_ANALOG", \ + "HPI_SOURCENODE_ADAPTER" \ +} + +compile_time_assert((HPI_SOURCENODE_LAST_INDEX - HPI_SOURCENODE_BASE + 1) == + (12), sourcenode_strings_match_defs); + +#define HPI_DESTNODE_STRINGS \ +{ \ + "no destination", \ + "HPI_DESTNODE_ISTREAM", \ + "HPI_DESTNODE_LINEOUT", \ + "HPI_DESTNODE_AESEBU_OUT", \ + "HPI_DESTNODE_RF", \ + "HPI_DESTNODE_SPEAKER", \ + "HPI_DESTNODE_COBRANET", \ + "HPI_DESTNODE_ANALOG" \ +} +compile_time_assert((HPI_DESTNODE_LAST_INDEX - HPI_DESTNODE_BASE + 1) == (8), + destnode_strings_match_defs); + +#define HPI_CONTROL_CHANNEL_MODE_STRINGS \ +{ \ + "XXX HPI_CHANNEL_MODE_ERROR XXX", \ + "HPI_CHANNEL_MODE_NORMAL", \ + "HPI_CHANNEL_MODE_SWAP", \ + "HPI_CHANNEL_MODE_LEFT_ONLY", \ + "HPI_CHANNEL_MODE_RIGHT_ONLY" \ +} + +#endif /* _HPIDEBUG_H */ diff --git a/sound/pci/asihpi/hpidspcd.c b/sound/pci/asihpi/hpidspcd.c new file mode 100644 index 00000000000..9b10d9a5c25 --- /dev/null +++ b/sound/pci/asihpi/hpidspcd.c @@ -0,0 +1,172 @@ +/***********************************************************************/ +/*! + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +\file +Functions for reading DSP code to load into DSP + +(Linux only:) If DSPCODE_FIRMWARE_LOADER is defined, code is read using +hotplug firmware loader from individual dsp code files + +If neither of the above is defined, code is read from linked arrays. +DSPCODE_ARRAY is defined. + +HPI_INCLUDE_**** must be defined +and the appropriate hzz?????.c or hex?????.c linked in + + */ +/***********************************************************************/ +#define SOURCEFILE_NAME "hpidspcd.c" +#include "hpidspcd.h" +#include "hpidebug.h" + +/** + Header structure for binary dsp code file (see asidsp.doc) + This structure must match that used in s2bin.c for generation of asidsp.bin + */ + +#ifndef DISABLE_PRAGMA_PACK1 +#pragma pack(push, 1) +#endif + +struct code_header { + u32 size; + char type[4]; + u32 adapter; + u32 version; + u32 crc; +}; + +#ifndef DISABLE_PRAGMA_PACK1 +#pragma pack(pop) +#endif + +#define HPI_VER_DECIMAL ((int)(HPI_VER_MAJOR(HPI_VER) * 10000 + \ + HPI_VER_MINOR(HPI_VER) * 100 + HPI_VER_RELEASE(HPI_VER))) + +/***********************************************************************/ +#include "linux/pci.h" +/*-------------------------------------------------------------------*/ +short hpi_dsp_code_open(u32 adapter, struct dsp_code *ps_dsp_code, + u32 *pos_error_code) +{ + const struct firmware *ps_firmware = ps_dsp_code->ps_firmware; + struct code_header header; + char fw_name[20]; + int err; + + sprintf(fw_name, "asihpi/dsp%04x.bin", adapter); + HPI_DEBUG_LOG(INFO, "requesting firmware for %s\n", fw_name); + + err = request_firmware(&ps_firmware, fw_name, + &ps_dsp_code->ps_dev->dev); + if (err != 0) { + HPI_DEBUG_LOG(ERROR, "%d, request_firmware failed for %s\n", + err, fw_name); + goto error1; + } + if (ps_firmware->size < sizeof(header)) { + HPI_DEBUG_LOG(ERROR, "header size too small %s\n", fw_name); + goto error2; + } + memcpy(&header, ps_firmware->data, sizeof(header)); + if (header.adapter != adapter) { + HPI_DEBUG_LOG(ERROR, "adapter type incorrect %4x != %4x\n", + header.adapter, adapter); + goto error2; + } + if (header.size != ps_firmware->size) { + HPI_DEBUG_LOG(ERROR, "code size wrong %d != %ld\n", + header.size, (unsigned long)ps_firmware->size); + goto error2; + } + + if (header.version / 10000 != HPI_VER_DECIMAL / 10000) { + HPI_DEBUG_LOG(ERROR, + "firmware major version mismatch " + "DSP image %d != driver %d\n", header.version, + HPI_VER_DECIMAL); + goto error2; + } + + if (header.version != HPI_VER_DECIMAL) { + HPI_DEBUG_LOG(WARNING, + "version mismatch DSP image %d != driver %d\n", + header.version, HPI_VER_DECIMAL); + /* goto error2; still allow driver to load */ + } + + HPI_DEBUG_LOG(INFO, "dsp code %s opened\n", fw_name); + ps_dsp_code->ps_firmware = ps_firmware; + ps_dsp_code->block_length = header.size / sizeof(u32); + ps_dsp_code->word_count = sizeof(header) / sizeof(u32); + ps_dsp_code->version = header.version; + ps_dsp_code->crc = header.crc; + return 0; + +error2: + release_firmware(ps_firmware); +error1: + ps_dsp_code->ps_firmware = NULL; + ps_dsp_code->block_length = 0; + return HPI_ERROR_DSP_FILE_NOT_FOUND; +} + +/*-------------------------------------------------------------------*/ +void hpi_dsp_code_close(struct dsp_code *ps_dsp_code) +{ + if (ps_dsp_code->ps_firmware != NULL) { + HPI_DEBUG_LOG(DEBUG, "dsp code closed\n"); + release_firmware(ps_dsp_code->ps_firmware); + ps_dsp_code->ps_firmware = NULL; + } +} + +/*-------------------------------------------------------------------*/ +void hpi_dsp_code_rewind(struct dsp_code *ps_dsp_code) +{ + /* Go back to start of data, after header */ + ps_dsp_code->word_count = sizeof(struct code_header) / sizeof(u32); +} + +/*-------------------------------------------------------------------*/ +short hpi_dsp_code_read_word(struct dsp_code *ps_dsp_code, u32 *pword) +{ + if (ps_dsp_code->word_count + 1 > ps_dsp_code->block_length) + return (HPI_ERROR_DSP_FILE_FORMAT); + + *pword = ((u32 *)(ps_dsp_code->ps_firmware->data))[ps_dsp_code-> + word_count]; + ps_dsp_code->word_count++; + return 0; +} + +/*-------------------------------------------------------------------*/ +short hpi_dsp_code_read_block(size_t words_requested, + struct dsp_code *ps_dsp_code, u32 **ppblock) +{ + if (ps_dsp_code->word_count + words_requested > + ps_dsp_code->block_length) + return HPI_ERROR_DSP_FILE_FORMAT; + + *ppblock = + ((u32 *)(ps_dsp_code->ps_firmware->data)) + + ps_dsp_code->word_count; + ps_dsp_code->word_count += words_requested; + return 0; +} diff --git a/sound/pci/asihpi/hpidspcd.h b/sound/pci/asihpi/hpidspcd.h new file mode 100644 index 00000000000..d7c24039822 --- /dev/null +++ b/sound/pci/asihpi/hpidspcd.h @@ -0,0 +1,104 @@ +/***********************************************************************/ +/** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +\file +Functions for reading DSP code to load into DSP + + hpi_dspcode_defines HPI DSP code loading method +Define exactly one of these to select how the DSP code is supplied to +the adapter. + +End users writing applications that use the HPI interface do not have to +use any of the below defines; they are only necessary for building drivers + +HPI_DSPCODE_FILE: +DSP code is supplied as a file that is opened and read from by the driver. + +HPI_DSPCODE_FIRMWARE: +DSP code is read using the hotplug firmware loader module. + Only valid when compiling the HPI kernel driver under Linux. +*/ +/***********************************************************************/ +#ifndef _HPIDSPCD_H_ +#define _HPIDSPCD_H_ + +#include "hpi_internal.h" + +#ifndef DISABLE_PRAGMA_PACK1 +#pragma pack(push, 1) +#endif + +/** Descriptor for dspcode from firmware loader */ +struct dsp_code { + /** Firmware descriptor */ + const struct firmware *ps_firmware; + struct pci_dev *ps_dev; + /** Expected number of words in the whole dsp code,INCL header */ + long int block_length; + /** Number of words read so far */ + long int word_count; + /** Version read from dsp code file */ + u32 version; + /** CRC read from dsp code file */ + u32 crc; +}; + +#ifndef DISABLE_PRAGMA_PACK1 +#pragma pack(pop) +#endif + +/** Prepare *psDspCode to refer to the requuested adapter. + Searches the file, or selects the appropriate linked array + +\return 0 for success, or error code if requested code is not available +*/ +short hpi_dsp_code_open( + /** Code identifier, usually adapter family */ + u32 adapter, + /** Pointer to DSP code control structure */ + struct dsp_code *ps_dsp_code, + /** Pointer to dword to receive OS specific error code */ + u32 *pos_error_code); + +/** Close the DSP code file */ +void hpi_dsp_code_close(struct dsp_code *ps_dsp_code); + +/** Rewind to the beginning of the DSP code file (for verify) */ +void hpi_dsp_code_rewind(struct dsp_code *ps_dsp_code); + +/** Read one word from the dsp code file + \return 0 for success, or error code if eof, or block length exceeded +*/ +short hpi_dsp_code_read_word(struct dsp_code *ps_dsp_code, + /**< DSP code descriptor */ + u32 *pword /**< where to store the read word */ + ); + +/** Get a block of dsp code into an internal buffer, and provide a pointer to +that buffer. (If dsp code is already an array in memory, it is referenced, +not copied.) + +\return Error if requested number of words are not available +*/ +short hpi_dsp_code_read_block(size_t words_requested, + struct dsp_code *ps_dsp_code, + /* Pointer to store (Pointer to code buffer) */ + u32 **ppblock); + +#endif diff --git a/sound/pci/asihpi/hpifunc.c b/sound/pci/asihpi/hpifunc.c new file mode 100644 index 00000000000..254c580db63 --- /dev/null +++ b/sound/pci/asihpi/hpifunc.c @@ -0,0 +1,3864 @@ + +#include "hpi_internal.h" +#include "hpimsginit.h" + +#include "hpidebug.h" + +struct hpi_handle { + unsigned int obj_index:12; + unsigned int obj_type:4; + unsigned int adapter_index:14; + unsigned int spare:1; + unsigned int read_only:1; +}; + +union handle_word { + struct hpi_handle h; + u32 w; +}; + +u32 hpi_indexes_to_handle(const char c_object, const u16 adapter_index, + const u16 object_index) +{ + union handle_word handle; + + handle.h.adapter_index = adapter_index; + handle.h.spare = 0; + handle.h.read_only = 0; + handle.h.obj_type = c_object; + handle.h.obj_index = object_index; + return handle.w; +} + +void hpi_handle_to_indexes(const u32 handle, u16 *pw_adapter_index, + u16 *pw_object_index) +{ + union handle_word uhandle; + uhandle.w = handle; + + if (pw_adapter_index) + *pw_adapter_index = (u16)uhandle.h.adapter_index; + if (pw_object_index) + *pw_object_index = (u16)uhandle.h.obj_index; +} + +char hpi_handle_object(const u32 handle) +{ + union handle_word uhandle; + uhandle.w = handle; + return (char)uhandle.h.obj_type; +} + +#define u32TOINDEX(h, i1) \ +do {\ + if (h == 0) \ + return HPI_ERROR_INVALID_OBJ; \ + else \ + hpi_handle_to_indexes(h, i1, NULL); \ +} while (0) + +#define u32TOINDEXES(h, i1, i2) \ +do {\ + if (h == 0) \ + return HPI_ERROR_INVALID_OBJ; \ + else \ + hpi_handle_to_indexes(h, i1, i2);\ +} while (0) + +void hpi_format_to_msg(struct hpi_msg_format *pMF, + const struct hpi_format *pF) +{ + pMF->sample_rate = pF->sample_rate; + pMF->bit_rate = pF->bit_rate; + pMF->attributes = pF->attributes; + pMF->channels = pF->channels; + pMF->format = pF->format; +} + +static void hpi_msg_to_format(struct hpi_format *pF, + struct hpi_msg_format *pMF) +{ + pF->sample_rate = pMF->sample_rate; + pF->bit_rate = pMF->bit_rate; + pF->attributes = pMF->attributes; + pF->channels = pMF->channels; + pF->format = pMF->format; + pF->mode_legacy = 0; + pF->unused = 0; +} + +void hpi_stream_response_to_legacy(struct hpi_stream_res *pSR) +{ + pSR->u.legacy_stream_info.auxiliary_data_available = + pSR->u.stream_info.auxiliary_data_available; + pSR->u.legacy_stream_info.state = pSR->u.stream_info.state; +} + +static struct hpi_hsubsys gh_subsys; + +struct hpi_hsubsys *hpi_subsys_create(void + ) +{ + struct hpi_message hm; + struct hpi_response hr; + + memset(&gh_subsys, 0, sizeof(struct hpi_hsubsys)); + + { + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_OPEN); + hpi_send_recv(&hm, &hr); + + if (hr.error == 0) + return &gh_subsys; + + } + return NULL; +} + +void hpi_subsys_free(const struct hpi_hsubsys *ph_subsys) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_CLOSE); + hpi_send_recv(&hm, &hr); + +} + +u16 hpi_subsys_get_version(const struct hpi_hsubsys *ph_subsys, u32 *pversion) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_GET_VERSION); + hpi_send_recv(&hm, &hr); + *pversion = hr.u.s.version; + return hr.error; +} + +u16 hpi_subsys_get_version_ex(const struct hpi_hsubsys *ph_subsys, + u32 *pversion_ex) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_GET_VERSION); + hpi_send_recv(&hm, &hr); + *pversion_ex = hr.u.s.data; + return hr.error; +} + +u16 hpi_subsys_get_info(const struct hpi_hsubsys *ph_subsys, u32 *pversion, + u16 *pw_num_adapters, u16 aw_adapter_list[], u16 list_length) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_GET_INFO); + + hpi_send_recv(&hm, &hr); + + *pversion = hr.u.s.version; + if (list_length > HPI_MAX_ADAPTERS) + memcpy(aw_adapter_list, &hr.u.s.aw_adapter_list, + HPI_MAX_ADAPTERS); + else + memcpy(aw_adapter_list, &hr.u.s.aw_adapter_list, list_length); + *pw_num_adapters = hr.u.s.num_adapters; + return hr.error; +} + +u16 hpi_subsys_find_adapters(const struct hpi_hsubsys *ph_subsys, + u16 *pw_num_adapters, u16 aw_adapter_list[], u16 list_length) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_FIND_ADAPTERS); + + hpi_send_recv(&hm, &hr); + + if (list_length > HPI_MAX_ADAPTERS) { + memcpy(aw_adapter_list, &hr.u.s.aw_adapter_list, + HPI_MAX_ADAPTERS * sizeof(u16)); + memset(&aw_adapter_list[HPI_MAX_ADAPTERS], 0, + (list_length - HPI_MAX_ADAPTERS) * sizeof(u16)); + } else + memcpy(aw_adapter_list, &hr.u.s.aw_adapter_list, + list_length * sizeof(u16)); + *pw_num_adapters = hr.u.s.num_adapters; + + return hr.error; +} + +u16 hpi_subsys_create_adapter(const struct hpi_hsubsys *ph_subsys, + const struct hpi_resource *p_resource, u16 *pw_adapter_index) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_CREATE_ADAPTER); + hm.u.s.resource = *p_resource; + + hpi_send_recv(&hm, &hr); + + *pw_adapter_index = hr.u.s.adapter_index; + return hr.error; +} + +u16 hpi_subsys_delete_adapter(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_DELETE_ADAPTER); + hm.adapter_index = adapter_index; + hpi_send_recv(&hm, &hr); + return hr.error; +} + +u16 hpi_subsys_get_num_adapters(const struct hpi_hsubsys *ph_subsys, + int *pn_num_adapters) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_GET_NUM_ADAPTERS); + hpi_send_recv(&hm, &hr); + *pn_num_adapters = (int)hr.u.s.num_adapters; + return hr.error; +} + +u16 hpi_subsys_get_adapter(const struct hpi_hsubsys *ph_subsys, int iterator, + u32 *padapter_index, u16 *pw_adapter_type) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_GET_ADAPTER); + hm.adapter_index = (u16)iterator; + hpi_send_recv(&hm, &hr); + *padapter_index = (int)hr.u.s.adapter_index; + *pw_adapter_type = hr.u.s.aw_adapter_list[0]; + return hr.error; +} + +u16 hpi_subsys_set_host_network_interface(const struct hpi_hsubsys *ph_subsys, + const char *sz_interface) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_SET_NETWORK_INTERFACE); + if (sz_interface == NULL) + return HPI_ERROR_INVALID_RESOURCE; + hm.u.s.resource.r.net_if = sz_interface; + hpi_send_recv(&hm, &hr); + return hr.error; +} + +u16 hpi_adapter_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_OPEN); + hm.adapter_index = adapter_index; + + hpi_send_recv(&hm, &hr); + + return hr.error; + +} + +u16 hpi_adapter_close(const struct hpi_hsubsys *ph_subsys, u16 adapter_index) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_CLOSE); + hm.adapter_index = adapter_index; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_adapter_set_mode(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u32 adapter_mode) +{ + return hpi_adapter_set_mode_ex(ph_subsys, adapter_index, adapter_mode, + HPI_ADAPTER_MODE_SET); +} + +u16 hpi_adapter_set_mode_ex(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u32 adapter_mode, u16 query_or_set) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_SET_MODE); + hm.adapter_index = adapter_index; + hm.u.a.adapter_mode = adapter_mode; + hm.u.a.assert_id = query_or_set; + hpi_send_recv(&hm, &hr); + return hr.error; +} + +u16 hpi_adapter_get_mode(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u32 *padapter_mode) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_GET_MODE); + hm.adapter_index = adapter_index; + hpi_send_recv(&hm, &hr); + if (padapter_mode) + *padapter_mode = hr.u.a.serial_number; + return hr.error; +} + +u16 hpi_adapter_get_info(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 *pw_num_outstreams, u16 *pw_num_instreams, + u16 *pw_version, u32 *pserial_number, u16 *pw_adapter_type) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_GET_INFO); + hm.adapter_index = adapter_index; + + hpi_send_recv(&hm, &hr); + + *pw_adapter_type = hr.u.a.adapter_type; + *pw_num_outstreams = hr.u.a.num_outstreams; + *pw_num_instreams = hr.u.a.num_instreams; + *pw_version = hr.u.a.version; + *pserial_number = hr.u.a.serial_number; + return hr.error; +} + +u16 hpi_adapter_get_module_by_index(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 module_index, u16 *pw_num_outputs, + u16 *pw_num_inputs, u16 *pw_version, u32 *pserial_number, + u16 *pw_module_type, u32 *ph_module) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_MODULE_INFO); + hm.adapter_index = adapter_index; + hm.u.ax.module_info.index = module_index; + + hpi_send_recv(&hm, &hr); + + *pw_module_type = hr.u.a.adapter_type; + *pw_num_outputs = hr.u.a.num_outstreams; + *pw_num_inputs = hr.u.a.num_instreams; + *pw_version = hr.u.a.version; + *pserial_number = hr.u.a.serial_number; + *ph_module = 0; + + return hr.error; +} + +u16 hpi_adapter_get_assert(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 *assert_present, char *psz_assert, + u16 *pw_line_number) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_GET_ASSERT); + hm.adapter_index = adapter_index; + hpi_send_recv(&hm, &hr); + + *assert_present = 0; + + if (!hr.error) { + + *pw_line_number = (u16)hr.u.a.serial_number; + if (*pw_line_number) { + + int i; + char *src = (char *)hr.u.a.sz_adapter_assert; + char *dst = psz_assert; + + *assert_present = 1; + + for (i = 0; i < HPI_STRING_LEN; i++) { + char c; + c = *src++; + *dst++ = c; + if (c == 0) + break; + } + + } + } + return hr.error; +} + +u16 hpi_adapter_get_assert_ex(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 *assert_present, char *psz_assert, + u32 *pline_number, u16 *pw_assert_on_dsp) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_GET_ASSERT); + hm.adapter_index = adapter_index; + + hpi_send_recv(&hm, &hr); + + *assert_present = 0; + + if (!hr.error) { + + *pline_number = hr.u.a.serial_number; + + *assert_present = hr.u.a.adapter_type; + + *pw_assert_on_dsp = hr.u.a.adapter_index; + + if (!*assert_present && *pline_number) + + *assert_present = 1; + + if (*assert_present) { + + int i; + char *src = (char *)hr.u.a.sz_adapter_assert; + char *dst = psz_assert; + + for (i = 0; i < HPI_STRING_LEN; i++) { + char c; + c = *src++; + *dst++ = c; + if (c == 0) + break; + } + + } else { + *psz_assert = 0; + } + } + return hr.error; +} + +u16 hpi_adapter_test_assert(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 assert_id) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_TEST_ASSERT); + hm.adapter_index = adapter_index; + hm.u.a.assert_id = assert_id; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_adapter_enable_capability(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 capability, u32 key) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_ENABLE_CAPABILITY); + hm.adapter_index = adapter_index; + hm.u.a.assert_id = capability; + hm.u.a.adapter_mode = key; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_adapter_self_test(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_SELFTEST); + hm.adapter_index = adapter_index; + hpi_send_recv(&hm, &hr); + return hr.error; +} + +u16 hpi_adapter_debug_read(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u32 dsp_address, char *p_buffer, int *count_bytes) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_DEBUG_READ); + + hr.size = sizeof(hr); + + hm.adapter_index = adapter_index; + hm.u.ax.debug_read.dsp_address = dsp_address; + + if (*count_bytes > sizeof(hr.u.bytes)) + *count_bytes = sizeof(hr.u.bytes); + + hm.u.ax.debug_read.count_bytes = *count_bytes; + + hpi_send_recv(&hm, &hr); + + if (!hr.error) { + *count_bytes = hr.size - 12; + memcpy(p_buffer, &hr.u.bytes, *count_bytes); + } else + *count_bytes = 0; + return hr.error; +} + +u16 hpi_adapter_set_property(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 property, u16 parameter1, u16 parameter2) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_SET_PROPERTY); + hm.adapter_index = adapter_index; + hm.u.ax.property_set.property = property; + hm.u.ax.property_set.parameter1 = parameter1; + hm.u.ax.property_set.parameter2 = parameter2; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_adapter_get_property(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 property, u16 *pw_parameter1, + u16 *pw_parameter2) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_GET_PROPERTY); + hm.adapter_index = adapter_index; + hm.u.ax.property_set.property = property; + + hpi_send_recv(&hm, &hr); + if (!hr.error) { + if (pw_parameter1) + *pw_parameter1 = hr.u.ax.property_get.parameter1; + if (pw_parameter2) + *pw_parameter2 = hr.u.ax.property_get.parameter2; + } + + return hr.error; +} + +u16 hpi_adapter_enumerate_property(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 index, u16 what_to_enumerate, + u16 property_index, u32 *psetting) +{ + return 0; +} + +u16 hpi_format_create(struct hpi_format *p_format, u16 channels, u16 format, + u32 sample_rate, u32 bit_rate, u32 attributes) +{ + u16 error = 0; + struct hpi_msg_format fmt; + + switch (channels) { + case 1: + case 2: + case 4: + case 6: + case 8: + case 16: + break; + default: + error = HPI_ERROR_INVALID_CHANNELS; + return error; + } + fmt.channels = channels; + + switch (format) { + case HPI_FORMAT_PCM16_SIGNED: + case HPI_FORMAT_PCM24_SIGNED: + case HPI_FORMAT_PCM32_SIGNED: + case HPI_FORMAT_PCM32_FLOAT: + case HPI_FORMAT_PCM16_BIGENDIAN: + case HPI_FORMAT_PCM8_UNSIGNED: + case HPI_FORMAT_MPEG_L1: + case HPI_FORMAT_MPEG_L2: + case HPI_FORMAT_MPEG_L3: + case HPI_FORMAT_DOLBY_AC2: + case HPI_FORMAT_AA_TAGIT1_HITS: + case HPI_FORMAT_AA_TAGIT1_INSERTS: + case HPI_FORMAT_RAW_BITSTREAM: + case HPI_FORMAT_AA_TAGIT1_HITS_EX1: + case HPI_FORMAT_OEM1: + case HPI_FORMAT_OEM2: + break; + default: + error = HPI_ERROR_INVALID_FORMAT; + return error; + } + fmt.format = format; + + if (sample_rate < 8000L) { + error = HPI_ERROR_INCOMPATIBLE_SAMPLERATE; + sample_rate = 8000L; + } + if (sample_rate > 200000L) { + error = HPI_ERROR_INCOMPATIBLE_SAMPLERATE; + sample_rate = 200000L; + } + fmt.sample_rate = sample_rate; + + switch (format) { + case HPI_FORMAT_MPEG_L1: + case HPI_FORMAT_MPEG_L2: + case HPI_FORMAT_MPEG_L3: + fmt.bit_rate = bit_rate; + break; + case HPI_FORMAT_PCM16_SIGNED: + case HPI_FORMAT_PCM16_BIGENDIAN: + fmt.bit_rate = channels * sample_rate * 2; + break; + case HPI_FORMAT_PCM32_SIGNED: + case HPI_FORMAT_PCM32_FLOAT: + fmt.bit_rate = channels * sample_rate * 4; + break; + case HPI_FORMAT_PCM8_UNSIGNED: + fmt.bit_rate = channels * sample_rate; + break; + default: + fmt.bit_rate = 0; + } + + switch (format) { + case HPI_FORMAT_MPEG_L2: + if ((channels == 1) + && (attributes != HPI_MPEG_MODE_DEFAULT)) { + attributes = HPI_MPEG_MODE_DEFAULT; + error = HPI_ERROR_INVALID_FORMAT; + } else if (attributes > HPI_MPEG_MODE_DUALCHANNEL) { + attributes = HPI_MPEG_MODE_DEFAULT; + error = HPI_ERROR_INVALID_FORMAT; + } + fmt.attributes = attributes; + break; + default: + fmt.attributes = attributes; + } + + hpi_msg_to_format(p_format, &fmt); + return error; +} + +u16 hpi_stream_estimate_buffer_size(struct hpi_format *p_format, + u32 host_polling_rate_in_milli_seconds, u32 *recommended_buffer_size) +{ + + u32 bytes_per_second; + u32 size; + u16 channels; + struct hpi_format *pF = p_format; + + channels = pF->channels; + + switch (pF->format) { + case HPI_FORMAT_PCM16_BIGENDIAN: + case HPI_FORMAT_PCM16_SIGNED: + bytes_per_second = pF->sample_rate * 2L * channels; + break; + case HPI_FORMAT_PCM24_SIGNED: + bytes_per_second = pF->sample_rate * 3L * channels; + break; + case HPI_FORMAT_PCM32_SIGNED: + case HPI_FORMAT_PCM32_FLOAT: + bytes_per_second = pF->sample_rate * 4L * channels; + break; + case HPI_FORMAT_PCM8_UNSIGNED: + bytes_per_second = pF->sample_rate * 1L * channels; + break; + case HPI_FORMAT_MPEG_L1: + case HPI_FORMAT_MPEG_L2: + case HPI_FORMAT_MPEG_L3: + bytes_per_second = pF->bit_rate / 8L; + break; + case HPI_FORMAT_DOLBY_AC2: + + bytes_per_second = 256000L / 8L; + break; + default: + return HPI_ERROR_INVALID_FORMAT; + } + size = (bytes_per_second * host_polling_rate_in_milli_seconds * 2) / + 1000L; + + *recommended_buffer_size = + roundup_pow_of_two(((size + 4095L) & ~4095L)); + return 0; +} + +u16 hpi_outstream_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index, + u16 outstream_index, u32 *ph_outstream) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_OPEN); + hm.adapter_index = adapter_index; + hm.obj_index = outstream_index; + + hpi_send_recv(&hm, &hr); + + if (hr.error == 0) + *ph_outstream = + hpi_indexes_to_handle(HPI_OBJ_OSTREAM, adapter_index, + outstream_index); + else + *ph_outstream = 0; + return hr.error; +} + +u16 hpi_outstream_close(const struct hpi_hsubsys *ph_subsys, u32 h_outstream) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_HOSTBUFFER_FREE); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_GROUP_RESET); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_CLOSE); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_outstream_get_info_ex(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u16 *pw_state, u32 *pbuffer_size, u32 *pdata_to_play, + u32 *psamples_played, u32 *pauxiliary_data_to_play) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_GET_INFO); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + + hpi_send_recv(&hm, &hr); + + if (pw_state) + *pw_state = hr.u.d.u.stream_info.state; + if (pbuffer_size) + *pbuffer_size = hr.u.d.u.stream_info.buffer_size; + if (pdata_to_play) + *pdata_to_play = hr.u.d.u.stream_info.data_available; + if (psamples_played) + *psamples_played = hr.u.d.u.stream_info.samples_transferred; + if (pauxiliary_data_to_play) + *pauxiliary_data_to_play = + hr.u.d.u.stream_info.auxiliary_data_available; + return hr.error; +} + +u16 hpi_outstream_write_buf(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, const u8 *pb_data, u32 bytes_to_write, + const struct hpi_format *p_format) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_WRITE); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + hm.u.d.u.data.pb_data = (u8 *)pb_data; + hm.u.d.u.data.data_size = bytes_to_write; + + hpi_format_to_msg(&hm.u.d.u.data.format, p_format); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_outstream_start(const struct hpi_hsubsys *ph_subsys, u32 h_outstream) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_START); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_outstream_wait_start(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_WAIT_START); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_outstream_stop(const struct hpi_hsubsys *ph_subsys, u32 h_outstream) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_STOP); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_outstream_sinegen(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_SINEGEN); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_outstream_reset(const struct hpi_hsubsys *ph_subsys, u32 h_outstream) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_RESET); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_outstream_query_format(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, struct hpi_format *p_format) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_QUERY_FORMAT); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + + hpi_format_to_msg(&hm.u.d.u.data.format, p_format); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_outstream_set_format(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, struct hpi_format *p_format) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_SET_FORMAT); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + + hpi_format_to_msg(&hm.u.d.u.data.format, p_format); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_outstream_set_velocity(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, short velocity) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_SET_VELOCITY); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + hm.u.d.u.velocity = velocity; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_outstream_set_punch_in_out(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u32 punch_in_sample, u32 punch_out_sample) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_SET_PUNCHINOUT); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + + hm.u.d.u.pio.punch_in_sample = punch_in_sample; + hm.u.d.u.pio.punch_out_sample = punch_out_sample; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_outstream_ancillary_reset(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u16 mode) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_ANC_RESET); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + hm.u.d.u.data.format.channels = mode; + hpi_send_recv(&hm, &hr); + return hr.error; +} + +u16 hpi_outstream_ancillary_get_info(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u32 *pframes_available) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_ANC_GET_INFO); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + if (hr.error == 0) { + if (pframes_available) + *pframes_available = + hr.u.d.u.stream_info.data_available / + sizeof(struct hpi_anc_frame); + } + return hr.error; +} + +u16 hpi_outstream_ancillary_read(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, struct hpi_anc_frame *p_anc_frame_buffer, + u32 anc_frame_buffer_size_in_bytes, + u32 number_of_ancillary_frames_to_read) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_ANC_READ); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + hm.u.d.u.data.pb_data = (u8 *)p_anc_frame_buffer; + hm.u.d.u.data.data_size = + number_of_ancillary_frames_to_read * + sizeof(struct hpi_anc_frame); + if (hm.u.d.u.data.data_size <= anc_frame_buffer_size_in_bytes) + hpi_send_recv(&hm, &hr); + else + hr.error = HPI_ERROR_INVALID_DATA_TRANSFER; + return hr.error; +} + +u16 hpi_outstream_set_time_scale(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u32 time_scale) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_SET_TIMESCALE); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + + hm.u.d.u.time_scale = time_scale; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_outstream_host_buffer_allocate(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u32 size_in_bytes) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_HOSTBUFFER_ALLOC); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + hm.u.d.u.data.data_size = size_in_bytes; + hpi_send_recv(&hm, &hr); + return hr.error; +} + +u16 hpi_outstream_host_buffer_get_info(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u8 **pp_buffer, + struct hpi_hostbuffer_status **pp_status) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_HOSTBUFFER_GET_INFO); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + + if (hr.error == 0) { + if (pp_buffer) + *pp_buffer = hr.u.d.u.hostbuffer_info.p_buffer; + if (pp_status) + *pp_status = hr.u.d.u.hostbuffer_info.p_status; + } + return hr.error; +} + +u16 hpi_outstream_host_buffer_free(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_HOSTBUFFER_FREE); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + return hr.error; +} + +u16 hpi_outstream_group_add(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u32 h_stream) +{ + struct hpi_message hm; + struct hpi_response hr; + u16 adapter; + char c_obj_type; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_GROUP_ADD); + hr.error = 0; + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + c_obj_type = hpi_handle_object(h_stream); + switch (c_obj_type) { + case HPI_OBJ_OSTREAM: + hm.u.d.u.stream.object_type = HPI_OBJ_OSTREAM; + u32TOINDEXES(h_stream, &adapter, + &hm.u.d.u.stream.stream_index); + break; + case HPI_OBJ_ISTREAM: + hm.u.d.u.stream.object_type = HPI_OBJ_ISTREAM; + u32TOINDEXES(h_stream, &adapter, + &hm.u.d.u.stream.stream_index); + break; + default: + return HPI_ERROR_INVALID_STREAM; + } + if (adapter != hm.adapter_index) + return HPI_ERROR_NO_INTERADAPTER_GROUPS; + + hpi_send_recv(&hm, &hr); + return hr.error; +} + +u16 hpi_outstream_group_get_map(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream, u32 *poutstream_map, u32 *pinstream_map) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_GROUP_GETMAP); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + + if (poutstream_map) + *poutstream_map = hr.u.d.u.group_info.outstream_group_map; + if (pinstream_map) + *pinstream_map = hr.u.d.u.group_info.instream_group_map; + + return hr.error; +} + +u16 hpi_outstream_group_reset(const struct hpi_hsubsys *ph_subsys, + u32 h_outstream) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_GROUP_RESET); + u32TOINDEXES(h_outstream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + return hr.error; +} + +u16 hpi_instream_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index, + u16 instream_index, u32 *ph_instream) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_OPEN); + hm.adapter_index = adapter_index; + hm.obj_index = instream_index; + + hpi_send_recv(&hm, &hr); + + if (hr.error == 0) + *ph_instream = + hpi_indexes_to_handle(HPI_OBJ_ISTREAM, adapter_index, + instream_index); + else + *ph_instream = 0; + + return hr.error; +} + +u16 hpi_instream_close(const struct hpi_hsubsys *ph_subsys, u32 h_instream) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_HOSTBUFFER_FREE); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_GROUP_RESET); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_CLOSE); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_instream_query_format(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, const struct hpi_format *p_format) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_QUERY_FORMAT); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + hpi_format_to_msg(&hm.u.d.u.data.format, p_format); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_instream_set_format(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, const struct hpi_format *p_format) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_SET_FORMAT); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + hpi_format_to_msg(&hm.u.d.u.data.format, p_format); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_instream_read_buf(const struct hpi_hsubsys *ph_subsys, u32 h_instream, + u8 *pb_data, u32 bytes_to_read) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_READ); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + hm.u.d.u.data.data_size = bytes_to_read; + hm.u.d.u.data.pb_data = pb_data; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_instream_start(const struct hpi_hsubsys *ph_subsys, u32 h_instream) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_START); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_instream_wait_start(const struct hpi_hsubsys *ph_subsys, + u32 h_instream) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_WAIT_START); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_instream_stop(const struct hpi_hsubsys *ph_subsys, u32 h_instream) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_STOP); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_instream_reset(const struct hpi_hsubsys *ph_subsys, u32 h_instream) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_RESET); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_instream_get_info_ex(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, u16 *pw_state, u32 *pbuffer_size, u32 *pdata_recorded, + u32 *psamples_recorded, u32 *pauxiliary_data_recorded) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_GET_INFO); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + + hpi_send_recv(&hm, &hr); + + if (pw_state) + *pw_state = hr.u.d.u.stream_info.state; + if (pbuffer_size) + *pbuffer_size = hr.u.d.u.stream_info.buffer_size; + if (pdata_recorded) + *pdata_recorded = hr.u.d.u.stream_info.data_available; + if (psamples_recorded) + *psamples_recorded = hr.u.d.u.stream_info.samples_transferred; + if (pauxiliary_data_recorded) + *pauxiliary_data_recorded = + hr.u.d.u.stream_info.auxiliary_data_available; + return hr.error; +} + +u16 hpi_instream_ancillary_reset(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, u16 bytes_per_frame, u16 mode, u16 alignment, + u16 idle_bit) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_ANC_RESET); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + hm.u.d.u.data.format.attributes = bytes_per_frame; + hm.u.d.u.data.format.format = (mode << 8) | (alignment & 0xff); + hm.u.d.u.data.format.channels = idle_bit; + hpi_send_recv(&hm, &hr); + return hr.error; +} + +u16 hpi_instream_ancillary_get_info(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, u32 *pframe_space) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_ANC_GET_INFO); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + if (pframe_space) + *pframe_space = + (hr.u.d.u.stream_info.buffer_size - + hr.u.d.u.stream_info.data_available) / + sizeof(struct hpi_anc_frame); + return hr.error; +} + +u16 hpi_instream_ancillary_write(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, const struct hpi_anc_frame *p_anc_frame_buffer, + u32 anc_frame_buffer_size_in_bytes, + u32 number_of_ancillary_frames_to_write) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_ANC_WRITE); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + hm.u.d.u.data.pb_data = (u8 *)p_anc_frame_buffer; + hm.u.d.u.data.data_size = + number_of_ancillary_frames_to_write * + sizeof(struct hpi_anc_frame); + if (hm.u.d.u.data.data_size <= anc_frame_buffer_size_in_bytes) + hpi_send_recv(&hm, &hr); + else + hr.error = HPI_ERROR_INVALID_DATA_TRANSFER; + return hr.error; +} + +u16 hpi_instream_host_buffer_allocate(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, u32 size_in_bytes) +{ + + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_HOSTBUFFER_ALLOC); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + hm.u.d.u.data.data_size = size_in_bytes; + hpi_send_recv(&hm, &hr); + return hr.error; +} + +u16 hpi_instream_host_buffer_get_info(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, u8 **pp_buffer, + struct hpi_hostbuffer_status **pp_status) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_HOSTBUFFER_GET_INFO); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + + if (hr.error == 0) { + if (pp_buffer) + *pp_buffer = hr.u.d.u.hostbuffer_info.p_buffer; + if (pp_status) + *pp_status = hr.u.d.u.hostbuffer_info.p_status; + } + return hr.error; +} + +u16 hpi_instream_host_buffer_free(const struct hpi_hsubsys *ph_subsys, + u32 h_instream) +{ + + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_HOSTBUFFER_FREE); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + return hr.error; +} + +u16 hpi_instream_group_add(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, u32 h_stream) +{ + struct hpi_message hm; + struct hpi_response hr; + u16 adapter; + char c_obj_type; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_GROUP_ADD); + hr.error = 0; + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + c_obj_type = hpi_handle_object(h_stream); + + switch (c_obj_type) { + case HPI_OBJ_OSTREAM: + hm.u.d.u.stream.object_type = HPI_OBJ_OSTREAM; + u32TOINDEXES(h_stream, &adapter, + &hm.u.d.u.stream.stream_index); + break; + case HPI_OBJ_ISTREAM: + hm.u.d.u.stream.object_type = HPI_OBJ_ISTREAM; + u32TOINDEXES(h_stream, &adapter, + &hm.u.d.u.stream.stream_index); + break; + default: + return HPI_ERROR_INVALID_STREAM; + } + + if (adapter != hm.adapter_index) + return HPI_ERROR_NO_INTERADAPTER_GROUPS; + + hpi_send_recv(&hm, &hr); + return hr.error; +} + +u16 hpi_instream_group_get_map(const struct hpi_hsubsys *ph_subsys, + u32 h_instream, u32 *poutstream_map, u32 *pinstream_map) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_HOSTBUFFER_FREE); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + + if (poutstream_map) + *poutstream_map = hr.u.d.u.group_info.outstream_group_map; + if (pinstream_map) + *pinstream_map = hr.u.d.u.group_info.instream_group_map; + + return hr.error; +} + +u16 hpi_instream_group_reset(const struct hpi_hsubsys *ph_subsys, + u32 h_instream) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_GROUP_RESET); + u32TOINDEXES(h_instream, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + return hr.error; +} + +u16 hpi_mixer_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index, + u32 *ph_mixer) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_MIXER, HPI_MIXER_OPEN); + hm.adapter_index = adapter_index; + + hpi_send_recv(&hm, &hr); + + if (hr.error == 0) + *ph_mixer = + hpi_indexes_to_handle(HPI_OBJ_MIXER, adapter_index, + 0); + else + *ph_mixer = 0; + return hr.error; +} + +u16 hpi_mixer_close(const struct hpi_hsubsys *ph_subsys, u32 h_mixer) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_MIXER, HPI_MIXER_CLOSE); + u32TOINDEX(h_mixer, &hm.adapter_index); + hpi_send_recv(&hm, &hr); + return hr.error; +} + +u16 hpi_mixer_get_control(const struct hpi_hsubsys *ph_subsys, u32 h_mixer, + u16 src_node_type, u16 src_node_type_index, u16 dst_node_type, + u16 dst_node_type_index, u16 control_type, u32 *ph_control) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_MIXER, + HPI_MIXER_GET_CONTROL); + u32TOINDEX(h_mixer, &hm.adapter_index); + hm.u.m.node_type1 = src_node_type; + hm.u.m.node_index1 = src_node_type_index; + hm.u.m.node_type2 = dst_node_type; + hm.u.m.node_index2 = dst_node_type_index; + hm.u.m.control_type = control_type; + + hpi_send_recv(&hm, &hr); + + if (hr.error == 0) + *ph_control = + hpi_indexes_to_handle(HPI_OBJ_CONTROL, + hm.adapter_index, hr.u.m.control_index); + else + *ph_control = 0; + return hr.error; +} + +u16 hpi_mixer_get_control_by_index(const struct hpi_hsubsys *ph_subsys, + u32 h_mixer, u16 control_index, u16 *pw_src_node_type, + u16 *pw_src_node_index, u16 *pw_dst_node_type, u16 *pw_dst_node_index, + u16 *pw_control_type, u32 *ph_control) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_MIXER, + HPI_MIXER_GET_CONTROL_BY_INDEX); + u32TOINDEX(h_mixer, &hm.adapter_index); + hm.u.m.control_index = control_index; + hpi_send_recv(&hm, &hr); + + if (pw_src_node_type) { + *pw_src_node_type = + hr.u.m.src_node_type + HPI_SOURCENODE_NONE; + *pw_src_node_index = hr.u.m.src_node_index; + *pw_dst_node_type = hr.u.m.dst_node_type + HPI_DESTNODE_NONE; + *pw_dst_node_index = hr.u.m.dst_node_index; + } + if (pw_control_type) + *pw_control_type = hr.u.m.control_index; + + if (ph_control) { + if (hr.error == 0) + *ph_control = + hpi_indexes_to_handle(HPI_OBJ_CONTROL, + hm.adapter_index, control_index); + else + *ph_control = 0; + } + return hr.error; +} + +u16 hpi_mixer_store(const struct hpi_hsubsys *ph_subsys, u32 h_mixer, + enum HPI_MIXER_STORE_COMMAND command, u16 index) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_MIXER, HPI_MIXER_STORE); + u32TOINDEX(h_mixer, &hm.adapter_index); + hm.u.mx.store.command = command; + hm.u.mx.store.index = index; + hpi_send_recv(&hm, &hr); + return hr.error; +} + +static +u16 hpi_control_param_set(const struct hpi_hsubsys *ph_subsys, + const u32 h_control, const u16 attrib, const u32 param1, + const u32 param2) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_SET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = attrib; + hm.u.c.param1 = param1; + hm.u.c.param2 = param2; + hpi_send_recv(&hm, &hr); + return hr.error; +} + +static +u16 hpi_control_param_get(const struct hpi_hsubsys *ph_subsys, + const u32 h_control, const u16 attrib, u32 param1, u32 param2, + u32 *pparam1, u32 *pparam2) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = attrib; + hm.u.c.param1 = param1; + hm.u.c.param2 = param2; + hpi_send_recv(&hm, &hr); + if (pparam1) + *pparam1 = hr.u.c.param1; + if (pparam2) + *pparam2 = hr.u.c.param2; + + return hr.error; +} + +#define hpi_control_param1_get(s, h, a, p1) \ + hpi_control_param_get(s, h, a, 0, 0, p1, NULL) +#define hpi_control_param2_get(s, h, a, p1, p2) \ + hpi_control_param_get(s, h, a, 0, 0, p1, p2) +#define hpi_control_ex_param1_get(s, h, a, p1) \ + hpi_control_ex_param_get(s, h, a, 0, 0, p1, NULL) +#define hpi_control_ex_param2_get(s, h, a, p1, p2) \ + hpi_control_ex_param_get(s, h, a, 0, 0, p1, p2) + +static +u16 hpi_control_query(const struct hpi_hsubsys *ph_subsys, + const u32 h_control, const u16 attrib, const u32 index, + const u32 param, u32 *psetting) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_INFO); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + + hm.u.c.attribute = attrib; + hm.u.c.param1 = index; + hm.u.c.param2 = param; + + hpi_send_recv(&hm, &hr); + *psetting = hr.u.c.param1; + + return hr.error; +} + +static u16 hpi_control_get_string(const struct hpi_hsubsys *ph_subsys, + const u32 h_control, const u16 attribute, char *psz_string, + const u32 string_length) +{ + unsigned int sub_string_index = 0, j = 0; + char c = 0; + unsigned int n = 0; + u16 hE = 0; + + if ((string_length < 1) || (string_length > 256)) + return HPI_ERROR_INVALID_CONTROL_VALUE; + for (sub_string_index = 0; sub_string_index < string_length; + sub_string_index += 8) { + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = attribute; + hm.u.c.param1 = sub_string_index; + hm.u.c.param2 = 0; + hpi_send_recv(&hm, &hr); + + if (sub_string_index == 0 + && (hr.u.cu.chars8.remaining_chars + 8) > + string_length) + return HPI_ERROR_INVALID_CONTROL_VALUE; + + if (hr.error) { + hE = hr.error; + break; + } + for (j = 0; j < 8; j++) { + c = hr.u.cu.chars8.sz_data[j]; + psz_string[sub_string_index + j] = c; + n++; + if (n >= string_length) { + psz_string[string_length - 1] = 0; + hE = HPI_ERROR_INVALID_CONTROL_VALUE; + break; + } + if (c == 0) + break; + } + + if ((hr.u.cu.chars8.remaining_chars == 0) + && ((sub_string_index + j) < string_length) + && (c != 0)) { + c = 0; + psz_string[sub_string_index + j] = c; + } + if (c == 0) + break; + } + return hE; +} + +u16 HPI_AESEBU__receiver_query_format(const struct hpi_hsubsys *ph_subsys, + const u32 h_aes_rx, const u32 index, u16 *pw_format) +{ + u32 qr; + u16 err; + + err = hpi_control_query(ph_subsys, h_aes_rx, HPI_AESEBURX_FORMAT, + index, 0, &qr); + *pw_format = (u16)qr; + return err; +} + +u16 HPI_AESEBU__receiver_set_format(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 format) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_AESEBURX_FORMAT, format, 0); +} + +u16 HPI_AESEBU__receiver_get_format(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_format) +{ + u16 err; + u32 param; + + err = hpi_control_param1_get(ph_subsys, h_control, + HPI_AESEBURX_FORMAT, ¶m); + if (!err && pw_format) + *pw_format = (u16)param; + + return err; +} + +u16 HPI_AESEBU__receiver_get_sample_rate(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *psample_rate) +{ + return hpi_control_param1_get(ph_subsys, h_control, + HPI_AESEBURX_SAMPLERATE, psample_rate); +} + +u16 HPI_AESEBU__receiver_get_user_data(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 index, u16 *pw_data) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_AESEBURX_USERDATA; + hm.u.c.param1 = index; + + hpi_send_recv(&hm, &hr); + + if (pw_data) + *pw_data = (u16)hr.u.c.param2; + return hr.error; +} + +u16 HPI_AESEBU__receiver_get_channel_status(const struct hpi_hsubsys + *ph_subsys, u32 h_control, u16 index, u16 *pw_data) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_AESEBURX_CHANNELSTATUS; + hm.u.c.param1 = index; + + hpi_send_recv(&hm, &hr); + + if (pw_data) + *pw_data = (u16)hr.u.c.param2; + return hr.error; +} + +u16 HPI_AESEBU__receiver_get_error_status(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_error_data) +{ + u32 error_data = 0; + u16 error = 0; + + error = hpi_control_param1_get(ph_subsys, h_control, + HPI_AESEBURX_ERRORSTATUS, &error_data); + if (pw_error_data) + *pw_error_data = (u16)error_data; + return error; +} + +u16 HPI_AESEBU__transmitter_set_sample_rate(const struct hpi_hsubsys + *ph_subsys, u32 h_control, u32 sample_rate) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_AESEBUTX_SAMPLERATE, sample_rate, 0); +} + +u16 HPI_AESEBU__transmitter_set_user_data(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 index, u16 data) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_AESEBUTX_USERDATA, index, data); +} + +u16 HPI_AESEBU__transmitter_set_channel_status(const struct hpi_hsubsys + *ph_subsys, u32 h_control, u16 index, u16 data) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_AESEBUTX_CHANNELSTATUS, index, data); +} + +u16 HPI_AESEBU__transmitter_get_channel_status(const struct hpi_hsubsys + *ph_subsys, u32 h_control, u16 index, u16 *pw_data) +{ + return HPI_ERROR_INVALID_OPERATION; +} + +u16 HPI_AESEBU__transmitter_query_format(const struct hpi_hsubsys *ph_subsys, + const u32 h_aes_tx, const u32 index, u16 *pw_format) +{ + u32 qr; + u16 err; + + err = hpi_control_query(ph_subsys, h_aes_tx, HPI_AESEBUTX_FORMAT, + index, 0, &qr); + *pw_format = (u16)qr; + return err; +} + +u16 HPI_AESEBU__transmitter_set_format(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 output_format) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_AESEBUTX_FORMAT, output_format, 0); +} + +u16 HPI_AESEBU__transmitter_get_format(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_output_format) +{ + u16 err; + u32 param; + + err = hpi_control_param1_get(ph_subsys, h_control, + HPI_AESEBUTX_FORMAT, ¶m); + if (!err && pw_output_format) + *pw_output_format = (u16)param; + + return err; +} + +u16 hpi_bitstream_set_clock_edge(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 edge_type) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_BITSTREAM_CLOCK_EDGE, edge_type, 0); +} + +u16 hpi_bitstream_set_data_polarity(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 polarity) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_BITSTREAM_DATA_POLARITY, polarity, 0); +} + +u16 hpi_bitstream_get_activity(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_clk_activity, u16 *pw_data_activity) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_BITSTREAM_ACTIVITY; + hpi_send_recv(&hm, &hr); + if (pw_clk_activity) + *pw_clk_activity = (u16)hr.u.c.param1; + if (pw_data_activity) + *pw_data_activity = (u16)hr.u.c.param2; + return hr.error; +} + +u16 hpi_channel_mode_query_mode(const struct hpi_hsubsys *ph_subsys, + const u32 h_mode, const u32 index, u16 *pw_mode) +{ + u32 qr; + u16 err; + + err = hpi_control_query(ph_subsys, h_mode, HPI_CHANNEL_MODE_MODE, + index, 0, &qr); + *pw_mode = (u16)qr; + return err; +} + +u16 hpi_channel_mode_set(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u16 mode) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_CHANNEL_MODE_MODE, mode, 0); +} + +u16 hpi_channel_mode_get(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u16 *mode) +{ + u32 mode32 = 0; + u16 error = hpi_control_param1_get(ph_subsys, h_control, + HPI_CHANNEL_MODE_MODE, &mode32); + if (mode) + *mode = (u16)mode32; + return error; +} + +u16 hpi_cobranet_hmi_write(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u32 hmi_address, u32 byte_count, u8 *pb_data) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROLEX, + HPI_CONTROL_SET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + + hm.u.cx.u.cobranet_data.byte_count = byte_count; + hm.u.cx.u.cobranet_data.hmi_address = hmi_address; + + if (byte_count <= 8) { + memcpy(hm.u.cx.u.cobranet_data.data, pb_data, byte_count); + hm.u.cx.attribute = HPI_COBRANET_SET; + } else { + hm.u.cx.u.cobranet_bigdata.pb_data = pb_data; + hm.u.cx.attribute = HPI_COBRANET_SET_DATA; + } + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_cobranet_hmi_read(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u32 hmi_address, u32 max_byte_count, u32 *pbyte_count, u8 *pb_data) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROLEX, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + + hm.u.cx.u.cobranet_data.byte_count = max_byte_count; + hm.u.cx.u.cobranet_data.hmi_address = hmi_address; + + if (max_byte_count <= 8) { + hm.u.cx.attribute = HPI_COBRANET_GET; + } else { + hm.u.cx.u.cobranet_bigdata.pb_data = pb_data; + hm.u.cx.attribute = HPI_COBRANET_GET_DATA; + } + + hpi_send_recv(&hm, &hr); + if (!hr.error && pb_data) { + + *pbyte_count = hr.u.cx.u.cobranet_data.byte_count; + + if (*pbyte_count < max_byte_count) + max_byte_count = *pbyte_count; + + if (hm.u.cx.attribute == HPI_COBRANET_GET) { + memcpy(pb_data, hr.u.cx.u.cobranet_data.data, + max_byte_count); + } else { + + } + + } + return hr.error; +} + +u16 hpi_cobranet_hmi_get_status(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *pstatus, u32 *preadable_size, + u32 *pwriteable_size) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROLEX, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + + hm.u.cx.attribute = HPI_COBRANET_GET_STATUS; + + hpi_send_recv(&hm, &hr); + if (!hr.error) { + if (pstatus) + *pstatus = hr.u.cx.u.cobranet_status.status; + if (preadable_size) + *preadable_size = + hr.u.cx.u.cobranet_status.readable_size; + if (pwriteable_size) + *pwriteable_size = + hr.u.cx.u.cobranet_status.writeable_size; + } + return hr.error; +} + +u16 hpi_cobranet_getI_paddress(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *pi_paddress) +{ + u32 byte_count; + u32 iP; + u16 error; + error = hpi_cobranet_hmi_read(ph_subsys, h_control, + HPI_COBRANET_HMI_cobra_ip_mon_currentIP, 4, &byte_count, + (u8 *)&iP); + + *pi_paddress = + ((iP & 0xff000000) >> 8) | ((iP & 0x00ff0000) << 8) | ((iP & + 0x0000ff00) >> 8) | ((iP & 0x000000ff) << 8); + + if (error) + *pi_paddress = 0; + + return error; + +} + +u16 hpi_cobranet_setI_paddress(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 i_paddress) +{ + u32 iP; + u16 error; + + iP = ((i_paddress & 0xff000000) >> 8) | ((i_paddress & 0x00ff0000) << + 8) | ((i_paddress & 0x0000ff00) >> 8) | ((i_paddress & + 0x000000ff) << 8); + + error = hpi_cobranet_hmi_write(ph_subsys, h_control, + HPI_COBRANET_HMI_cobra_ip_mon_currentIP, 4, (u8 *)&iP); + + return error; + +} + +u16 hpi_cobranet_get_staticI_paddress(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *pi_paddress) +{ + u32 byte_count; + u32 iP; + u16 error; + error = hpi_cobranet_hmi_read(ph_subsys, h_control, + HPI_COBRANET_HMI_cobra_ip_mon_staticIP, 4, &byte_count, + (u8 *)&iP); + + *pi_paddress = + ((iP & 0xff000000) >> 8) | ((iP & 0x00ff0000) << 8) | ((iP & + 0x0000ff00) >> 8) | ((iP & 0x000000ff) << 8); + + if (error) + *pi_paddress = 0; + + return error; + +} + +u16 hpi_cobranet_set_staticI_paddress(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 i_paddress) +{ + u32 iP; + u16 error; + + iP = ((i_paddress & 0xff000000) >> 8) | ((i_paddress & 0x00ff0000) << + 8) | ((i_paddress & 0x0000ff00) >> 8) | ((i_paddress & + 0x000000ff) << 8); + + error = hpi_cobranet_hmi_write(ph_subsys, h_control, + HPI_COBRANET_HMI_cobra_ip_mon_staticIP, 4, (u8 *)&iP); + + return error; + +} + +u16 hpi_cobranet_getMA_caddress(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *pmAC_MS_bs, u32 *pmAC_LS_bs) +{ + u32 byte_count; + u16 error; + u32 mAC; + error = hpi_cobranet_hmi_read(ph_subsys, h_control, + HPI_COBRANET_HMI_cobra_if_phy_address, 4, &byte_count, + (u8 *)&mAC); + *pmAC_MS_bs = + ((mAC & 0xff000000) >> 8) | ((mAC & 0x00ff0000) << 8) | ((mAC + & 0x0000ff00) >> 8) | ((mAC & 0x000000ff) << 8); + error += hpi_cobranet_hmi_read(ph_subsys, h_control, + HPI_COBRANET_HMI_cobra_if_phy_address + 1, 4, &byte_count, + (u8 *)&mAC); + *pmAC_LS_bs = + ((mAC & 0xff000000) >> 8) | ((mAC & 0x00ff0000) << 8) | ((mAC + & 0x0000ff00) >> 8) | ((mAC & 0x000000ff) << 8); + + if (error) { + *pmAC_MS_bs = 0; + *pmAC_LS_bs = 0; + } + + return error; +} + +u16 hpi_compander_set(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u16 attack, u16 decay, short ratio100, short threshold0_01dB, + short makeup_gain0_01dB) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_SET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + + hm.u.c.param1 = attack + ((u32)ratio100 << 16); + hm.u.c.param2 = (decay & 0xFFFFL); + hm.u.c.an_log_value[0] = threshold0_01dB; + hm.u.c.an_log_value[1] = makeup_gain0_01dB; + hm.u.c.attribute = HPI_COMPANDER_PARAMS; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_compander_get(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u16 *pw_attack, u16 *pw_decay, short *pw_ratio100, + short *pn_threshold0_01dB, short *pn_makeup_gain0_01dB) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_COMPANDER_PARAMS; + + hpi_send_recv(&hm, &hr); + + if (pw_attack) + *pw_attack = (short)(hr.u.c.param1 & 0xFFFF); + if (pw_decay) + *pw_decay = (short)(hr.u.c.param2 & 0xFFFF); + if (pw_ratio100) + *pw_ratio100 = (short)(hr.u.c.param1 >> 16); + + if (pn_threshold0_01dB) + *pn_threshold0_01dB = hr.u.c.an_log_value[0]; + if (pn_makeup_gain0_01dB) + *pn_makeup_gain0_01dB = hr.u.c.an_log_value[1]; + + return hr.error; +} + +u16 hpi_level_query_range(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short *min_gain_01dB, short *max_gain_01dB, short *step_gain_01dB) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_LEVEL_RANGE; + + hpi_send_recv(&hm, &hr); + if (hr.error) { + hr.u.c.an_log_value[0] = 0; + hr.u.c.an_log_value[1] = 0; + hr.u.c.param1 = 0; + } + if (min_gain_01dB) + *min_gain_01dB = hr.u.c.an_log_value[0]; + if (max_gain_01dB) + *max_gain_01dB = hr.u.c.an_log_value[1]; + if (step_gain_01dB) + *step_gain_01dB = (short)hr.u.c.param1; + return hr.error; +} + +u16 hpi_level_set_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_gain0_01dB[HPI_MAX_CHANNELS] + ) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_SET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + memcpy(hm.u.c.an_log_value, an_gain0_01dB, + sizeof(short) * HPI_MAX_CHANNELS); + hm.u.c.attribute = HPI_LEVEL_GAIN; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_level_get_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_gain0_01dB[HPI_MAX_CHANNELS] + ) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_LEVEL_GAIN; + + hpi_send_recv(&hm, &hr); + + memcpy(an_gain0_01dB, hr.u.c.an_log_value, + sizeof(short) * HPI_MAX_CHANNELS); + return hr.error; +} + +u16 hpi_meter_query_channels(const struct hpi_hsubsys *ph_subsys, + const u32 h_meter, u32 *p_channels) +{ + return hpi_control_query(ph_subsys, h_meter, HPI_METER_NUM_CHANNELS, + 0, 0, p_channels); +} + +u16 hpi_meter_get_peak(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_peakdB[HPI_MAX_CHANNELS] + ) +{ + short i = 0; + + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.obj_index = hm.obj_index; + hm.u.c.attribute = HPI_METER_PEAK; + + hpi_send_recv(&hm, &hr); + + if (!hr.error) + memcpy(an_peakdB, hr.u.c.an_log_value, + sizeof(short) * HPI_MAX_CHANNELS); + else + for (i = 0; i < HPI_MAX_CHANNELS; i++) + an_peakdB[i] = HPI_METER_MINIMUM; + return hr.error; +} + +u16 hpi_meter_get_rms(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_rmsdB[HPI_MAX_CHANNELS] + ) +{ + short i = 0; + + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_METER_RMS; + + hpi_send_recv(&hm, &hr); + + if (!hr.error) + memcpy(an_rmsdB, hr.u.c.an_log_value, + sizeof(short) * HPI_MAX_CHANNELS); + else + for (i = 0; i < HPI_MAX_CHANNELS; i++) + an_rmsdB[i] = HPI_METER_MINIMUM; + + return hr.error; +} + +u16 hpi_meter_set_rms_ballistics(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 attack, u16 decay) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_METER_RMS_BALLISTICS, attack, decay); +} + +u16 hpi_meter_get_rms_ballistics(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pn_attack, u16 *pn_decay) +{ + u32 attack; + u32 decay; + u16 error; + + error = hpi_control_param2_get(ph_subsys, h_control, + HPI_METER_RMS_BALLISTICS, &attack, &decay); + + if (pn_attack) + *pn_attack = (unsigned short)attack; + if (pn_decay) + *pn_decay = (unsigned short)decay; + + return error; +} + +u16 hpi_meter_set_peak_ballistics(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 attack, u16 decay) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_METER_PEAK_BALLISTICS, attack, decay); +} + +u16 hpi_meter_get_peak_ballistics(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pn_attack, u16 *pn_decay) +{ + u32 attack; + u32 decay; + u16 error; + + error = hpi_control_param2_get(ph_subsys, h_control, + HPI_METER_PEAK_BALLISTICS, &attack, &decay); + + if (pn_attack) + *pn_attack = (short)attack; + if (pn_decay) + *pn_decay = (short)decay; + + return error; +} + +u16 hpi_microphone_set_phantom_power(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 on_off) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_MICROPHONE_PHANTOM_POWER, (u32)on_off, 0); +} + +u16 hpi_microphone_get_phantom_power(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_on_off) +{ + u16 error = 0; + u32 on_off = 0; + error = hpi_control_param1_get(ph_subsys, h_control, + HPI_MICROPHONE_PHANTOM_POWER, &on_off); + if (pw_on_off) + *pw_on_off = (u16)on_off; + return error; +} + +u16 hpi_multiplexer_set_source(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 source_node_type, u16 source_node_index) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_MULTIPLEXER_SOURCE, source_node_type, source_node_index); +} + +u16 hpi_multiplexer_get_source(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *source_node_type, u16 *source_node_index) +{ + u32 node, index; + u16 error = hpi_control_param2_get(ph_subsys, h_control, + HPI_MULTIPLEXER_SOURCE, &node, + &index); + if (source_node_type) + *source_node_type = (u16)node; + if (source_node_index) + *source_node_index = (u16)index; + return error; +} + +u16 hpi_multiplexer_query_source(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 index, u16 *source_node_type, + u16 *source_node_index) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_MULTIPLEXER_QUERYSOURCE; + hm.u.c.param1 = index; + + hpi_send_recv(&hm, &hr); + + if (source_node_type) + *source_node_type = (u16)hr.u.c.param1; + if (source_node_index) + *source_node_index = (u16)hr.u.c.param2; + return hr.error; +} + +u16 hpi_parametricEQ__get_info(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_number_of_bands, u16 *pw_on_off) +{ + u32 oB = 0; + u32 oO = 0; + u16 error = 0; + + error = hpi_control_param2_get(ph_subsys, h_control, + HPI_EQUALIZER_NUM_FILTERS, &oO, &oB); + if (pw_number_of_bands) + *pw_number_of_bands = (u16)oB; + if (pw_on_off) + *pw_on_off = (u16)oO; + return error; +} + +u16 hpi_parametricEQ__set_state(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 on_off) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_EQUALIZER_NUM_FILTERS, on_off, 0); +} + +u16 hpi_parametricEQ__get_band(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 index, u16 *pn_type, u32 *pfrequency_hz, + short *pnQ100, short *pn_gain0_01dB) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_EQUALIZER_FILTER; + hm.u.c.param2 = index; + + hpi_send_recv(&hm, &hr); + + if (pfrequency_hz) + *pfrequency_hz = hr.u.c.param1; + if (pn_type) + *pn_type = (u16)(hr.u.c.param2 >> 16); + if (pnQ100) + *pnQ100 = hr.u.c.an_log_value[1]; + if (pn_gain0_01dB) + *pn_gain0_01dB = hr.u.c.an_log_value[0]; + + return hr.error; +} + +u16 hpi_parametricEQ__set_band(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 index, u16 type, u32 frequency_hz, short q100, + short gain0_01dB) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_SET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + + hm.u.c.param1 = frequency_hz; + hm.u.c.param2 = (index & 0xFFFFL) + ((u32)type << 16); + hm.u.c.an_log_value[0] = gain0_01dB; + hm.u.c.an_log_value[1] = q100; + hm.u.c.attribute = HPI_EQUALIZER_FILTER; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_parametricEQ__get_coeffs(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 index, short coeffs[5] + ) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_EQUALIZER_COEFFICIENTS; + hm.u.c.param2 = index; + + hpi_send_recv(&hm, &hr); + + coeffs[0] = (short)hr.u.c.an_log_value[0]; + coeffs[1] = (short)hr.u.c.an_log_value[1]; + coeffs[2] = (short)hr.u.c.param1; + coeffs[3] = (short)(hr.u.c.param1 >> 16); + coeffs[4] = (short)hr.u.c.param2; + + return hr.error; +} + +u16 hpi_sample_clock_query_source(const struct hpi_hsubsys *ph_subsys, + const u32 h_clock, const u32 index, u16 *pw_source) +{ + u32 qr; + u16 err; + + err = hpi_control_query(ph_subsys, h_clock, HPI_SAMPLECLOCK_SOURCE, + index, 0, &qr); + *pw_source = (u16)qr; + return err; +} + +u16 hpi_sample_clock_set_source(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 source) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_SAMPLECLOCK_SOURCE, source, 0); +} + +u16 hpi_sample_clock_get_source(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_source) +{ + u16 error = 0; + u32 source = 0; + error = hpi_control_param1_get(ph_subsys, h_control, + HPI_SAMPLECLOCK_SOURCE, &source); + if (!error) + if (pw_source) + *pw_source = (u16)source; + return error; +} + +u16 hpi_sample_clock_query_source_index(const struct hpi_hsubsys *ph_subsys, + const u32 h_clock, const u32 index, const u32 source, + u16 *pw_source_index) +{ + u32 qr; + u16 err; + + err = hpi_control_query(ph_subsys, h_clock, + HPI_SAMPLECLOCK_SOURCE_INDEX, index, source, &qr); + *pw_source_index = (u16)qr; + return err; +} + +u16 hpi_sample_clock_set_source_index(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 source_index) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_SAMPLECLOCK_SOURCE_INDEX, source_index, 0); +} + +u16 hpi_sample_clock_get_source_index(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u16 *pw_source_index) +{ + u16 error = 0; + u32 source_index = 0; + error = hpi_control_param1_get(ph_subsys, h_control, + HPI_SAMPLECLOCK_SOURCE_INDEX, &source_index); + if (!error) + if (pw_source_index) + *pw_source_index = (u16)source_index; + return error; +} + +u16 hpi_sample_clock_query_local_rate(const struct hpi_hsubsys *ph_subsys, + const u32 h_clock, const u32 index, u32 *prate) +{ + u16 err; + err = hpi_control_query(ph_subsys, h_clock, + HPI_SAMPLECLOCK_LOCAL_SAMPLERATE, index, 0, prate); + + return err; +} + +u16 hpi_sample_clock_set_local_rate(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 sample_rate) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_SAMPLECLOCK_LOCAL_SAMPLERATE, sample_rate, 0); +} + +u16 hpi_sample_clock_get_local_rate(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *psample_rate) +{ + u16 error = 0; + u32 sample_rate = 0; + error = hpi_control_param1_get(ph_subsys, h_control, + HPI_SAMPLECLOCK_LOCAL_SAMPLERATE, &sample_rate); + if (!error) + if (psample_rate) + *psample_rate = sample_rate; + return error; +} + +u16 hpi_sample_clock_get_sample_rate(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *psample_rate) +{ + u16 error = 0; + u32 sample_rate = 0; + error = hpi_control_param1_get(ph_subsys, h_control, + HPI_SAMPLECLOCK_SAMPLERATE, &sample_rate); + if (!error) + if (psample_rate) + *psample_rate = sample_rate; + return error; +} + +u16 hpi_sample_clock_set_auto(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 enable) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_SAMPLECLOCK_AUTO, enable, 0); +} + +u16 hpi_sample_clock_get_auto(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *penable) +{ + return hpi_control_param1_get(ph_subsys, h_control, + HPI_SAMPLECLOCK_AUTO, penable); +} + +u16 hpi_sample_clock_set_local_rate_lock(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 lock) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_SAMPLECLOCK_LOCAL_LOCK, lock, 0); +} + +u16 hpi_sample_clock_get_local_rate_lock(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *plock) +{ + return hpi_control_param1_get(ph_subsys, h_control, + HPI_SAMPLECLOCK_LOCAL_LOCK, plock); +} + +u16 hpi_tone_detector_get_frequency(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 index, u32 *frequency) +{ + return hpi_control_param_get(ph_subsys, h_control, + HPI_TONEDETECTOR_FREQUENCY, index, 0, frequency, NULL); +} + +u16 hpi_tone_detector_get_state(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *state) +{ + return hpi_control_param_get(ph_subsys, h_control, + HPI_TONEDETECTOR_STATE, 0, 0, (u32 *)state, NULL); +} + +u16 hpi_tone_detector_set_enable(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 enable) +{ + return hpi_control_param_set(ph_subsys, h_control, HPI_GENERIC_ENABLE, + (u32)enable, 0); +} + +u16 hpi_tone_detector_get_enable(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *enable) +{ + return hpi_control_param_get(ph_subsys, h_control, HPI_GENERIC_ENABLE, + 0, 0, (u32 *)enable, NULL); +} + +u16 hpi_tone_detector_set_event_enable(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 event_enable) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_GENERIC_EVENT_ENABLE, (u32)event_enable, 0); +} + +u16 hpi_tone_detector_get_event_enable(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *event_enable) +{ + return hpi_control_param_get(ph_subsys, h_control, + HPI_GENERIC_EVENT_ENABLE, 0, 0, (u32 *)event_enable, NULL); +} + +u16 hpi_tone_detector_set_threshold(const struct hpi_hsubsys *ph_subsys, + u32 h_control, int threshold) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_TONEDETECTOR_THRESHOLD, (u32)threshold, 0); +} + +u16 hpi_tone_detector_get_threshold(const struct hpi_hsubsys *ph_subsys, + u32 h_control, int *threshold) +{ + return hpi_control_param_get(ph_subsys, h_control, + HPI_TONEDETECTOR_THRESHOLD, 0, 0, (u32 *)threshold, NULL); +} + +u16 hpi_silence_detector_get_state(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *state) +{ + return hpi_control_param_get(ph_subsys, h_control, + HPI_SILENCEDETECTOR_STATE, 0, 0, (u32 *)state, NULL); +} + +u16 hpi_silence_detector_set_enable(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 enable) +{ + return hpi_control_param_set(ph_subsys, h_control, HPI_GENERIC_ENABLE, + (u32)enable, 0); +} + +u16 hpi_silence_detector_get_enable(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *enable) +{ + return hpi_control_param_get(ph_subsys, h_control, HPI_GENERIC_ENABLE, + 0, 0, (u32 *)enable, NULL); +} + +u16 hpi_silence_detector_set_event_enable(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 event_enable) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_GENERIC_EVENT_ENABLE, (u32)event_enable, 0); +} + +u16 hpi_silence_detector_get_event_enable(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *event_enable) +{ + return hpi_control_param_get(ph_subsys, h_control, + HPI_GENERIC_EVENT_ENABLE, 0, 0, (u32 *)event_enable, NULL); +} + +u16 hpi_silence_detector_set_delay(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 delay) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_SILENCEDETECTOR_DELAY, (u32)delay, 0); +} + +u16 hpi_silence_detector_get_delay(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *delay) +{ + return hpi_control_param_get(ph_subsys, h_control, + HPI_SILENCEDETECTOR_DELAY, 0, 0, (u32 *)delay, NULL); +} + +u16 hpi_silence_detector_set_threshold(const struct hpi_hsubsys *ph_subsys, + u32 h_control, int threshold) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_SILENCEDETECTOR_THRESHOLD, (u32)threshold, 0); +} + +u16 hpi_silence_detector_get_threshold(const struct hpi_hsubsys *ph_subsys, + u32 h_control, int *threshold) +{ + return hpi_control_param_get(ph_subsys, h_control, + HPI_SILENCEDETECTOR_THRESHOLD, 0, 0, (u32 *)threshold, NULL); +} + +u16 hpi_tuner_query_band(const struct hpi_hsubsys *ph_subsys, + const u32 h_tuner, const u32 index, u16 *pw_band) +{ + u32 qr; + u16 err; + + err = hpi_control_query(ph_subsys, h_tuner, HPI_TUNER_BAND, index, 0, + &qr); + *pw_band = (u16)qr; + return err; +} + +u16 hpi_tuner_set_band(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u16 band) +{ + return hpi_control_param_set(ph_subsys, h_control, HPI_TUNER_BAND, + band, 0); +} + +u16 hpi_tuner_get_band(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u16 *pw_band) +{ + u32 band = 0; + u16 error = 0; + + error = hpi_control_param1_get(ph_subsys, h_control, HPI_TUNER_BAND, + &band); + if (pw_band) + *pw_band = (u16)band; + return error; +} + +u16 hpi_tuner_query_frequency(const struct hpi_hsubsys *ph_subsys, + const u32 h_tuner, const u32 index, const u16 band, u32 *pfreq) +{ + return hpi_control_query(ph_subsys, h_tuner, HPI_TUNER_FREQ, index, + band, pfreq); +} + +u16 hpi_tuner_set_frequency(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 freq_ink_hz) +{ + return hpi_control_param_set(ph_subsys, h_control, HPI_TUNER_FREQ, + freq_ink_hz, 0); +} + +u16 hpi_tuner_get_frequency(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *pw_freq_ink_hz) +{ + return hpi_control_param1_get(ph_subsys, h_control, HPI_TUNER_FREQ, + pw_freq_ink_hz); +} + +u16 hpi_tuner_query_gain(const struct hpi_hsubsys *ph_subsys, + const u32 h_tuner, const u32 index, u16 *pw_gain) +{ + u32 qr; + u16 err; + + err = hpi_control_query(ph_subsys, h_tuner, HPI_TUNER_BAND, index, 0, + &qr); + *pw_gain = (u16)qr; + return err; +} + +u16 hpi_tuner_set_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short gain) +{ + return hpi_control_param_set(ph_subsys, h_control, HPI_TUNER_GAIN, + gain, 0); +} + +u16 hpi_tuner_get_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short *pn_gain) +{ + u32 gain = 0; + u16 error = 0; + + error = hpi_control_param1_get(ph_subsys, h_control, HPI_TUNER_GAIN, + &gain); + if (pn_gain) + *pn_gain = (u16)gain; + return error; +} + +u16 hpi_tuner_getRF_level(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short *pw_level) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_TUNER_LEVEL; + hm.u.c.param1 = HPI_TUNER_LEVEL_AVERAGE; + hpi_send_recv(&hm, &hr); + if (pw_level) + *pw_level = (short)hr.u.c.param1; + return hr.error; +} + +u16 hpi_tuner_get_rawRF_level(const struct hpi_hsubsys *ph_subsys, + u32 h_control, short *pw_level) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_TUNER_LEVEL; + hm.u.c.param1 = HPI_TUNER_LEVEL_RAW; + hpi_send_recv(&hm, &hr); + if (pw_level) + *pw_level = (short)hr.u.c.param1; + return hr.error; +} + +u16 hpi_tuner_query_deemphasis(const struct hpi_hsubsys *ph_subsys, + const u32 h_tuner, const u32 index, const u16 band, u32 *pdeemphasis) +{ + return hpi_control_query(ph_subsys, h_tuner, HPI_TUNER_DEEMPHASIS, + index, band, pdeemphasis); +} + +u16 hpi_tuner_set_deemphasis(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 deemphasis) +{ + return hpi_control_param_set(ph_subsys, h_control, + HPI_TUNER_DEEMPHASIS, deemphasis, 0); +} + +u16 hpi_tuner_get_deemphasis(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *pdeemphasis) +{ + return hpi_control_param1_get(ph_subsys, h_control, + HPI_TUNER_DEEMPHASIS, pdeemphasis); +} + +u16 hpi_tuner_query_program(const struct hpi_hsubsys *ph_subsys, + const u32 h_tuner, u32 *pbitmap_program) +{ + return hpi_control_query(ph_subsys, h_tuner, HPI_TUNER_PROGRAM, 0, 0, + pbitmap_program); +} + +u16 hpi_tuner_set_program(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u32 program) +{ + return hpi_control_param_set(ph_subsys, h_control, HPI_TUNER_PROGRAM, + program, 0); +} + +u16 hpi_tuner_get_program(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u32 *pprogram) +{ + return hpi_control_param1_get(ph_subsys, h_control, HPI_TUNER_PROGRAM, + pprogram); +} + +u16 hpi_tuner_get_hd_radio_dsp_version(const struct hpi_hsubsys *ph_subsys, + u32 h_control, char *psz_dsp_version, const u32 string_size) +{ + return hpi_control_get_string(ph_subsys, h_control, + HPI_TUNER_HDRADIO_DSP_VERSION, psz_dsp_version, string_size); +} + +u16 hpi_tuner_get_hd_radio_sdk_version(const struct hpi_hsubsys *ph_subsys, + u32 h_control, char *psz_sdk_version, const u32 string_size) +{ + return hpi_control_get_string(ph_subsys, h_control, + HPI_TUNER_HDRADIO_SDK_VERSION, psz_sdk_version, string_size); +} + +u16 hpi_tuner_get_status(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u16 *pw_status_mask, u16 *pw_status) +{ + u32 status = 0; + u16 error = 0; + + error = hpi_control_param1_get(ph_subsys, h_control, HPI_TUNER_STATUS, + &status); + if (pw_status) { + if (!error) { + *pw_status_mask = (u16)(status >> 16); + *pw_status = (u16)(status & 0xFFFF); + } else { + *pw_status_mask = 0; + *pw_status = 0; + } + } + return error; +} + +u16 hpi_tuner_set_mode(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u32 mode, u32 value) +{ + return hpi_control_param_set(ph_subsys, h_control, HPI_TUNER_MODE, + mode, value); +} + +u16 hpi_tuner_get_mode(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u32 mode, u32 *pn_value) +{ + return hpi_control_param_get(ph_subsys, h_control, HPI_TUNER_MODE, + mode, 0, pn_value, NULL); +} + +u16 hpi_tuner_get_hd_radio_signal_quality(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *pquality) +{ + return hpi_control_param_get(ph_subsys, h_control, + HPI_TUNER_HDRADIO_SIGNAL_QUALITY, 0, 0, pquality, NULL); +} + +u16 hpi_tuner_getRDS(const struct hpi_hsubsys *ph_subsys, u32 h_control, + char *p_data) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_TUNER_RDS; + hpi_send_recv(&hm, &hr); + if (p_data) { + *(u32 *)&p_data[0] = hr.u.cu.tuner.rds.data[0]; + *(u32 *)&p_data[4] = hr.u.cu.tuner.rds.data[1]; + *(u32 *)&p_data[8] = hr.u.cu.tuner.rds.bLER; + } + return hr.error; +} + +u16 HPI_PAD__get_channel_name(const struct hpi_hsubsys *ph_subsys, + u32 h_control, char *psz_string, const u32 data_length) +{ + return hpi_control_get_string(ph_subsys, h_control, + HPI_PAD_CHANNEL_NAME, psz_string, data_length); +} + +u16 HPI_PAD__get_artist(const struct hpi_hsubsys *ph_subsys, u32 h_control, + char *psz_string, const u32 data_length) +{ + return hpi_control_get_string(ph_subsys, h_control, HPI_PAD_ARTIST, + psz_string, data_length); +} + +u16 HPI_PAD__get_title(const struct hpi_hsubsys *ph_subsys, u32 h_control, + char *psz_string, const u32 data_length) +{ + return hpi_control_get_string(ph_subsys, h_control, HPI_PAD_TITLE, + psz_string, data_length); +} + +u16 HPI_PAD__get_comment(const struct hpi_hsubsys *ph_subsys, u32 h_control, + char *psz_string, const u32 data_length) +{ + return hpi_control_get_string(ph_subsys, h_control, HPI_PAD_COMMENT, + psz_string, data_length); +} + +u16 HPI_PAD__get_program_type(const struct hpi_hsubsys *ph_subsys, + u32 h_control, u32 *ppTY) +{ + return hpi_control_param_get(ph_subsys, h_control, + HPI_PAD_PROGRAM_TYPE, 0, 0, ppTY, NULL); +} + +u16 HPI_PAD__get_rdsPI(const struct hpi_hsubsys *ph_subsys, u32 h_control, + u32 *ppI) +{ + return hpi_control_param_get(ph_subsys, h_control, HPI_PAD_PROGRAM_ID, + 0, 0, ppI, NULL); +} + +u16 hpi_volume_query_channels(const struct hpi_hsubsys *ph_subsys, + const u32 h_volume, u32 *p_channels) +{ + return hpi_control_query(ph_subsys, h_volume, HPI_VOLUME_NUM_CHANNELS, + 0, 0, p_channels); +} + +u16 hpi_volume_set_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_log_gain[HPI_MAX_CHANNELS] + ) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_SET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + memcpy(hm.u.c.an_log_value, an_log_gain, + sizeof(short) * HPI_MAX_CHANNELS); + hm.u.c.attribute = HPI_VOLUME_GAIN; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_volume_get_gain(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_log_gain[HPI_MAX_CHANNELS] + ) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_VOLUME_GAIN; + + hpi_send_recv(&hm, &hr); + + memcpy(an_log_gain, hr.u.c.an_log_value, + sizeof(short) * HPI_MAX_CHANNELS); + return hr.error; +} + +u16 hpi_volume_query_range(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short *min_gain_01dB, short *max_gain_01dB, short *step_gain_01dB) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_VOLUME_RANGE; + + hpi_send_recv(&hm, &hr); + if (hr.error) { + hr.u.c.an_log_value[0] = 0; + hr.u.c.an_log_value[1] = 0; + hr.u.c.param1 = 0; + } + if (min_gain_01dB) + *min_gain_01dB = hr.u.c.an_log_value[0]; + if (max_gain_01dB) + *max_gain_01dB = hr.u.c.an_log_value[1]; + if (step_gain_01dB) + *step_gain_01dB = (short)hr.u.c.param1; + return hr.error; +} + +u16 hpi_volume_auto_fade_profile(const struct hpi_hsubsys *ph_subsys, + u32 h_control, short an_stop_gain0_01dB[HPI_MAX_CHANNELS], + u32 duration_ms, u16 profile) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_SET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + + memcpy(hm.u.c.an_log_value, an_stop_gain0_01dB, + sizeof(short) * HPI_MAX_CHANNELS); + + hm.u.c.attribute = HPI_VOLUME_AUTOFADE; + hm.u.c.param1 = duration_ms; + hm.u.c.param2 = profile; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_volume_auto_fade(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_stop_gain0_01dB[HPI_MAX_CHANNELS], u32 duration_ms) +{ + return hpi_volume_auto_fade_profile(ph_subsys, h_control, + an_stop_gain0_01dB, duration_ms, HPI_VOLUME_AUTOFADE_LOG); +} + +u16 hpi_vox_set_threshold(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short an_gain0_01dB) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_SET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_VOX_THRESHOLD; + + hm.u.c.an_log_value[0] = an_gain0_01dB; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_vox_get_threshold(const struct hpi_hsubsys *ph_subsys, u32 h_control, + short *an_gain0_01dB) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(h_control, &hm.adapter_index, &hm.obj_index); + hm.u.c.attribute = HPI_VOX_THRESHOLD; + + hpi_send_recv(&hm, &hr); + + *an_gain0_01dB = hr.u.c.an_log_value[0]; + + return hr.error; +} + +static size_t strv_packet_size = MIN_STRV_PACKET_SIZE; + +static size_t entity_type_to_size[LAST_ENTITY_TYPE] = { + 0, + sizeof(struct hpi_entity), + sizeof(void *), + + sizeof(int), + sizeof(float), + sizeof(double), + + sizeof(char), + sizeof(char), + + 4 * sizeof(char), + 16 * sizeof(char), + 6 * sizeof(char), +}; + +inline size_t hpi_entity_size(struct hpi_entity *entity_ptr) +{ + return entity_ptr->header.size; +} + +inline size_t hpi_entity_header_size(struct hpi_entity *entity_ptr) +{ + return sizeof(entity_ptr->header); +} + +inline size_t hpi_entity_value_size(struct hpi_entity *entity_ptr) +{ + return hpi_entity_size(entity_ptr) - + hpi_entity_header_size(entity_ptr); +} + +inline size_t hpi_entity_item_count(struct hpi_entity *entity_ptr) +{ + return hpi_entity_value_size(entity_ptr) / + entity_type_to_size[entity_ptr->header.type]; +} + +inline struct hpi_entity *hpi_entity_ptr_to_next(struct hpi_entity + *entity_ptr) +{ + return (void *)(((uint8_t *) entity_ptr) + + hpi_entity_size(entity_ptr)); +} + +inline u16 hpi_entity_check_type(const enum e_entity_type t) +{ + if (t >= 0 && t < STR_TYPE_FIELD_MAX) + return 0; + return HPI_ERROR_ENTITY_TYPE_INVALID; +} + +inline u16 hpi_entity_check_role(const enum e_entity_role r) +{ + if (r >= 0 && r < STR_ROLE_FIELD_MAX) + return 0; + return HPI_ERROR_ENTITY_ROLE_INVALID; +} + +static u16 hpi_entity_get_next(struct hpi_entity *entity, int recursive_flag, + void *guard_p, struct hpi_entity **next) +{ + HPI_DEBUG_ASSERT(entity != NULL); + HPI_DEBUG_ASSERT(next != NULL); + HPI_DEBUG_ASSERT(hpi_entity_size(entity) != 0); + + if (guard_p <= (void *)entity) { + *next = NULL; + return 0; + } + + if (recursive_flag && entity->header.type == entity_type_sequence) + *next = (struct hpi_entity *)entity->value; + else + *next = (struct hpi_entity *)hpi_entity_ptr_to_next(entity); + + if (guard_p <= (void *)*next) { + *next = NULL; + return 0; + } + + HPI_DEBUG_ASSERT(guard_p >= (void *)hpi_entity_ptr_to_next(*next)); + return 0; +} + +u16 hpi_entity_find_next(struct hpi_entity *container_entity, + enum e_entity_type type, enum e_entity_role role, int recursive_flag, + struct hpi_entity **current_match) +{ + struct hpi_entity *tmp = NULL; + void *guard_p = NULL; + + HPI_DEBUG_ASSERT(container_entity != NULL); + guard_p = hpi_entity_ptr_to_next(container_entity); + + if (*current_match != NULL) + hpi_entity_get_next(*current_match, recursive_flag, guard_p, + &tmp); + else + hpi_entity_get_next(container_entity, 1, guard_p, &tmp); + + while (tmp) { + u16 err; + + HPI_DEBUG_ASSERT((void *)tmp >= (void *)container_entity); + + if ((!type || tmp->header.type == type) && (!role + || tmp->header.role == role)) { + *current_match = tmp; + return 0; + } + + err = hpi_entity_get_next(tmp, recursive_flag, guard_p, + current_match); + if (err) + return err; + + tmp = *current_match; + } + + *current_match = NULL; + return 0; +} + +void hpi_entity_free(struct hpi_entity *entity) +{ + if (entity != NULL) + kfree(entity); +} + +static u16 hpi_entity_alloc_and_copy(struct hpi_entity *src, + struct hpi_entity **dst) +{ + size_t buf_size; + HPI_DEBUG_ASSERT(dst != NULL); + HPI_DEBUG_ASSERT(src != NULL); + + buf_size = hpi_entity_size(src); + *dst = kmalloc(buf_size, GFP_KERNEL); + if (dst == NULL) + return HPI_ERROR_MEMORY_ALLOC; + memcpy(*dst, src, buf_size); + return 0; +} + +u16 hpi_universal_info(const struct hpi_hsubsys *ph_subsys, u32 hC, + struct hpi_entity **info) +{ + struct hpi_msg_strv hm; + struct hpi_res_strv *phr; + u16 hpi_err; + int remaining_attempts = 2; + size_t resp_packet_size = 1024; + + *info = NULL; + + while (remaining_attempts--) { + phr = kmalloc(resp_packet_size, GFP_KERNEL); + HPI_DEBUG_ASSERT(phr != NULL); + + hpi_init_message_responseV1(&hm.h, (u16)sizeof(hm), &phr->h, + (u16)resp_packet_size, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_INFO); + u32TOINDEXES(hC, &hm.h.adapter_index, &hm.h.obj_index); + + hm.strv.header.size = sizeof(hm.strv); + phr->strv.header.size = resp_packet_size - sizeof(phr->h); + + hpi_send_recv((struct hpi_message *)&hm.h, + (struct hpi_response *)&phr->h); + if (phr->h.error == HPI_ERROR_RESPONSE_BUFFER_TOO_SMALL) { + + HPI_DEBUG_ASSERT(phr->h.specific_error > + MIN_STRV_PACKET_SIZE + && phr->h.specific_error < 1500); + resp_packet_size = phr->h.specific_error; + } else { + remaining_attempts = 0; + if (!phr->h.error) + hpi_entity_alloc_and_copy(&phr->strv, info); + } + + hpi_err = phr->h.error; + kfree(phr); + } + + return hpi_err; +} + +u16 hpi_universal_get(const struct hpi_hsubsys *ph_subsys, u32 hC, + struct hpi_entity **value) +{ + struct hpi_msg_strv hm; + struct hpi_res_strv *phr; + u16 hpi_err; + int remaining_attempts = 2; + + *value = NULL; + + while (remaining_attempts--) { + phr = kmalloc(strv_packet_size, GFP_KERNEL); + if (!phr) + return HPI_ERROR_MEMORY_ALLOC; + + hpi_init_message_responseV1(&hm.h, (u16)sizeof(hm), &phr->h, + (u16)strv_packet_size, HPI_OBJ_CONTROL, + HPI_CONTROL_GET_STATE); + u32TOINDEXES(hC, &hm.h.adapter_index, &hm.h.obj_index); + + hm.strv.header.size = sizeof(hm.strv); + phr->strv.header.size = strv_packet_size - sizeof(phr->h); + + hpi_send_recv((struct hpi_message *)&hm.h, + (struct hpi_response *)&phr->h); + if (phr->h.error == HPI_ERROR_RESPONSE_BUFFER_TOO_SMALL) { + + HPI_DEBUG_ASSERT(phr->h.specific_error > + MIN_STRV_PACKET_SIZE + && phr->h.specific_error < 1000); + strv_packet_size = phr->h.specific_error; + } else { + remaining_attempts = 0; + if (!phr->h.error) + hpi_entity_alloc_and_copy(&phr->strv, value); + } + + hpi_err = phr->h.error; + kfree(phr); + } + + return hpi_err; +} + +u16 hpi_universal_set(const struct hpi_hsubsys *ph_subsys, u32 hC, + struct hpi_entity *value) +{ + struct hpi_msg_strv *phm; + struct hpi_res_strv hr; + + phm = kmalloc(sizeof(phm->h) + value->header.size, GFP_KERNEL); + HPI_DEBUG_ASSERT(phm != NULL); + + hpi_init_message_responseV1(&phm->h, + sizeof(phm->h) + value->header.size, &hr.h, sizeof(hr), + HPI_OBJ_CONTROL, HPI_CONTROL_SET_STATE); + u32TOINDEXES(hC, &phm->h.adapter_index, &phm->h.obj_index); + hr.strv.header.size = sizeof(hr.strv); + + memcpy(&phm->strv, value, value->header.size); + hpi_send_recv((struct hpi_message *)&phm->h, + (struct hpi_response *)&hr.h); + + return hr.h.error; +} + +u16 hpi_entity_alloc_and_pack(const enum e_entity_type type, + const size_t item_count, const enum e_entity_role role, void *value, + struct hpi_entity **entity) +{ + size_t bytes_to_copy, total_size; + u16 hE = 0; + *entity = NULL; + + hE = hpi_entity_check_type(type); + if (hE) + return hE; + + HPI_DEBUG_ASSERT(role > entity_role_null && type < LAST_ENTITY_ROLE); + + bytes_to_copy = entity_type_to_size[type] * item_count; + total_size = hpi_entity_header_size(*entity) + bytes_to_copy; + + HPI_DEBUG_ASSERT(total_size >= hpi_entity_header_size(*entity) + && total_size < STR_SIZE_FIELD_MAX); + + *entity = kmalloc(total_size, GFP_KERNEL); + if (*entity == NULL) + return HPI_ERROR_MEMORY_ALLOC; + memcpy((*entity)->value, value, bytes_to_copy); + (*entity)->header.size = + hpi_entity_header_size(*entity) + bytes_to_copy; + (*entity)->header.type = type; + (*entity)->header.role = role; + return 0; +} + +u16 hpi_entity_copy_value_from(struct hpi_entity *entity, + enum e_entity_type type, size_t item_count, void *value_dst_p) +{ + size_t bytes_to_copy; + + if (entity->header.type != type) + return HPI_ERROR_ENTITY_TYPE_MISMATCH; + + if (hpi_entity_item_count(entity) != item_count) + return HPI_ERROR_ENTITY_ITEM_COUNT; + + bytes_to_copy = entity_type_to_size[type] * item_count; + memcpy(value_dst_p, entity->value, bytes_to_copy); + return 0; +} + +u16 hpi_entity_unpack(struct hpi_entity *entity, enum e_entity_type *type, + size_t *item_count, enum e_entity_role *role, void **value) +{ + u16 err = 0; + HPI_DEBUG_ASSERT(entity != NULL); + + if (type) + *type = entity->header.type; + + if (role) + *role = entity->header.role; + + if (value) + *value = entity->value; + + if (item_count != NULL) { + if (entity->header.type == entity_type_sequence) { + void *guard_p = hpi_entity_ptr_to_next(entity); + struct hpi_entity *next = NULL; + void *contents = entity->value; + + *item_count = 0; + while (contents < guard_p) { + (*item_count)++; + err = hpi_entity_get_next(contents, 0, + guard_p, &next); + if (next == NULL || err) + break; + contents = next; + } + } else { + *item_count = hpi_entity_item_count(entity); + } + } + return err; +} + +u16 hpi_gpio_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index, + u32 *ph_gpio, u16 *pw_number_input_bits, u16 *pw_number_output_bits) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_GPIO, HPI_GPIO_OPEN); + hm.adapter_index = adapter_index; + + hpi_send_recv(&hm, &hr); + + if (hr.error == 0) { + *ph_gpio = + hpi_indexes_to_handle(HPI_OBJ_GPIO, adapter_index, 0); + if (pw_number_input_bits) + *pw_number_input_bits = hr.u.l.number_input_bits; + if (pw_number_output_bits) + *pw_number_output_bits = hr.u.l.number_output_bits; + } else + *ph_gpio = 0; + return hr.error; +} + +u16 hpi_gpio_read_bit(const struct hpi_hsubsys *ph_subsys, u32 h_gpio, + u16 bit_index, u16 *pw_bit_data) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_GPIO, HPI_GPIO_READ_BIT); + u32TOINDEX(h_gpio, &hm.adapter_index); + hm.u.l.bit_index = bit_index; + + hpi_send_recv(&hm, &hr); + + *pw_bit_data = hr.u.l.bit_data[0]; + return hr.error; +} + +u16 hpi_gpio_read_all_bits(const struct hpi_hsubsys *ph_subsys, u32 h_gpio, + u16 aw_all_bit_data[4] + ) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_GPIO, HPI_GPIO_READ_ALL); + u32TOINDEX(h_gpio, &hm.adapter_index); + + hpi_send_recv(&hm, &hr); + + if (aw_all_bit_data) { + aw_all_bit_data[0] = hr.u.l.bit_data[0]; + aw_all_bit_data[1] = hr.u.l.bit_data[1]; + aw_all_bit_data[2] = hr.u.l.bit_data[2]; + aw_all_bit_data[3] = hr.u.l.bit_data[3]; + } + return hr.error; +} + +u16 hpi_gpio_write_bit(const struct hpi_hsubsys *ph_subsys, u32 h_gpio, + u16 bit_index, u16 bit_data) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_GPIO, HPI_GPIO_WRITE_BIT); + u32TOINDEX(h_gpio, &hm.adapter_index); + hm.u.l.bit_index = bit_index; + hm.u.l.bit_data = bit_data; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_gpio_write_status(const struct hpi_hsubsys *ph_subsys, u32 h_gpio, + u16 aw_all_bit_data[4] + ) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_GPIO, + HPI_GPIO_WRITE_STATUS); + u32TOINDEX(h_gpio, &hm.adapter_index); + + hpi_send_recv(&hm, &hr); + + if (aw_all_bit_data) { + aw_all_bit_data[0] = hr.u.l.bit_data[0]; + aw_all_bit_data[1] = hr.u.l.bit_data[1]; + aw_all_bit_data[2] = hr.u.l.bit_data[2]; + aw_all_bit_data[3] = hr.u.l.bit_data[3]; + } + return hr.error; +} + +u16 hpi_async_event_open(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u32 *ph_async) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ASYNCEVENT, + HPI_ASYNCEVENT_OPEN); + hm.adapter_index = adapter_index; + + hpi_send_recv(&hm, &hr); + + if (hr.error == 0) + + *ph_async = + hpi_indexes_to_handle(HPI_OBJ_ASYNCEVENT, + adapter_index, 0); + else + *ph_async = 0; + return hr.error; + +} + +u16 hpi_async_event_close(const struct hpi_hsubsys *ph_subsys, u32 h_async) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ASYNCEVENT, + HPI_ASYNCEVENT_OPEN); + u32TOINDEX(h_async, &hm.adapter_index); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_async_event_wait(const struct hpi_hsubsys *ph_subsys, u32 h_async, + u16 maximum_events, struct hpi_async_event *p_events, + u16 *pw_number_returned) +{ + return 0; +} + +u16 hpi_async_event_get_count(const struct hpi_hsubsys *ph_subsys, + u32 h_async, u16 *pw_count) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ASYNCEVENT, + HPI_ASYNCEVENT_GETCOUNT); + u32TOINDEX(h_async, &hm.adapter_index); + + hpi_send_recv(&hm, &hr); + + if (hr.error == 0) + if (pw_count) + *pw_count = hr.u.as.u.count.count; + + return hr.error; +} + +u16 hpi_async_event_get(const struct hpi_hsubsys *ph_subsys, u32 h_async, + u16 maximum_events, struct hpi_async_event *p_events, + u16 *pw_number_returned) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_ASYNCEVENT, + HPI_ASYNCEVENT_GET); + u32TOINDEX(h_async, &hm.adapter_index); + + hpi_send_recv(&hm, &hr); + if (!hr.error) { + memcpy(p_events, &hr.u.as.u.event, + sizeof(struct hpi_async_event)); + *pw_number_returned = 1; + } + + return hr.error; +} + +u16 hpi_nv_memory_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index, + u32 *ph_nv_memory, u16 *pw_size_in_bytes) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_NVMEMORY, + HPI_NVMEMORY_OPEN); + hm.adapter_index = adapter_index; + + hpi_send_recv(&hm, &hr); + + if (hr.error == 0) { + *ph_nv_memory = + hpi_indexes_to_handle(HPI_OBJ_NVMEMORY, adapter_index, + 0); + if (pw_size_in_bytes) + *pw_size_in_bytes = hr.u.n.size_in_bytes; + } else + *ph_nv_memory = 0; + return hr.error; +} + +u16 hpi_nv_memory_read_byte(const struct hpi_hsubsys *ph_subsys, + u32 h_nv_memory, u16 index, u16 *pw_data) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_NVMEMORY, + HPI_NVMEMORY_READ_BYTE); + u32TOINDEX(h_nv_memory, &hm.adapter_index); + hm.u.n.address = index; + + hpi_send_recv(&hm, &hr); + + *pw_data = hr.u.n.data; + return hr.error; +} + +u16 hpi_nv_memory_write_byte(const struct hpi_hsubsys *ph_subsys, + u32 h_nv_memory, u16 index, u16 data) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_NVMEMORY, + HPI_NVMEMORY_WRITE_BYTE); + u32TOINDEX(h_nv_memory, &hm.adapter_index); + hm.u.n.address = index; + hm.u.n.data = data; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_profile_open_all(const struct hpi_hsubsys *ph_subsys, + u16 adapter_index, u16 profile_index, u32 *ph_profile, + u16 *pw_max_profiles) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_PROFILE, + HPI_PROFILE_OPEN_ALL); + hm.adapter_index = adapter_index; + hm.obj_index = profile_index; + hpi_send_recv(&hm, &hr); + + *pw_max_profiles = hr.u.p.u.o.max_profiles; + if (hr.error == 0) + *ph_profile = + hpi_indexes_to_handle(HPI_OBJ_PROFILE, adapter_index, + profile_index); + else + *ph_profile = 0; + return hr.error; +} + +u16 hpi_profile_get(const struct hpi_hsubsys *ph_subsys, u32 h_profile, + u16 bin_index, u16 *pw_seconds, u32 *pmicro_seconds, u32 *pcall_count, + u32 *pmax_micro_seconds, u32 *pmin_micro_seconds) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_PROFILE, HPI_PROFILE_GET); + u32TOINDEXES(h_profile, &hm.adapter_index, &hm.obj_index); + hm.u.p.bin_index = bin_index; + hpi_send_recv(&hm, &hr); + if (pw_seconds) + *pw_seconds = hr.u.p.u.t.seconds; + if (pmicro_seconds) + *pmicro_seconds = hr.u.p.u.t.micro_seconds; + if (pcall_count) + *pcall_count = hr.u.p.u.t.call_count; + if (pmax_micro_seconds) + *pmax_micro_seconds = hr.u.p.u.t.max_micro_seconds; + if (pmin_micro_seconds) + *pmin_micro_seconds = hr.u.p.u.t.min_micro_seconds; + return hr.error; +} + +u16 hpi_profile_get_utilization(const struct hpi_hsubsys *ph_subsys, + u32 h_profile, u32 *putilization) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_PROFILE, + HPI_PROFILE_GET_UTILIZATION); + u32TOINDEXES(h_profile, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + if (hr.error) { + if (putilization) + *putilization = 0; + } else { + if (putilization) + *putilization = hr.u.p.u.t.call_count; + } + return hr.error; +} + +u16 hpi_profile_get_name(const struct hpi_hsubsys *ph_subsys, u32 h_profile, + u16 bin_index, char *sz_name, u16 name_length) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_PROFILE, + HPI_PROFILE_GET_NAME); + u32TOINDEXES(h_profile, &hm.adapter_index, &hm.obj_index); + hm.u.p.bin_index = bin_index; + hpi_send_recv(&hm, &hr); + if (hr.error) { + if (sz_name) + strcpy(sz_name, "??"); + } else { + if (sz_name) + memcpy(sz_name, (char *)hr.u.p.u.n.sz_name, + name_length); + } + return hr.error; +} + +u16 hpi_profile_start_all(const struct hpi_hsubsys *ph_subsys, u32 h_profile) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_PROFILE, + HPI_PROFILE_START_ALL); + u32TOINDEXES(h_profile, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_profile_stop_all(const struct hpi_hsubsys *ph_subsys, u32 h_profile) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_PROFILE, + HPI_PROFILE_STOP_ALL); + u32TOINDEXES(h_profile, &hm.adapter_index, &hm.obj_index); + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_watchdog_open(const struct hpi_hsubsys *ph_subsys, u16 adapter_index, + u32 *ph_watchdog) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_WATCHDOG, + HPI_WATCHDOG_OPEN); + hm.adapter_index = adapter_index; + + hpi_send_recv(&hm, &hr); + + if (hr.error == 0) + *ph_watchdog = + hpi_indexes_to_handle(HPI_OBJ_WATCHDOG, adapter_index, + 0); + else + *ph_watchdog = 0; + return hr.error; +} + +u16 hpi_watchdog_set_time(const struct hpi_hsubsys *ph_subsys, u32 h_watchdog, + u32 time_millisec) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_WATCHDOG, + HPI_WATCHDOG_SET_TIME); + u32TOINDEX(h_watchdog, &hm.adapter_index); + hm.u.w.time_ms = time_millisec; + + hpi_send_recv(&hm, &hr); + + return hr.error; +} + +u16 hpi_watchdog_ping(const struct hpi_hsubsys *ph_subsys, u32 h_watchdog) +{ + struct hpi_message hm; + struct hpi_response hr; + hpi_init_message_response(&hm, &hr, HPI_OBJ_WATCHDOG, + HPI_WATCHDOG_PING); + u32TOINDEX(h_watchdog, &hm.adapter_index); + + hpi_send_recv(&hm, &hr); + + return hr.error; +} diff --git a/sound/pci/asihpi/hpimsginit.c b/sound/pci/asihpi/hpimsginit.c new file mode 100644 index 00000000000..8e1d099ed7e --- /dev/null +++ b/sound/pci/asihpi/hpimsginit.c @@ -0,0 +1,130 @@ +/****************************************************************************** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Hardware Programming Interface (HPI) Utility functions. + + (C) Copyright AudioScience Inc. 2007 +*******************************************************************************/ + +#include "hpi_internal.h" +#include "hpimsginit.h" + +/* The actual message size for each object type */ +static u16 msg_size[HPI_OBJ_MAXINDEX + 1] = HPI_MESSAGE_SIZE_BY_OBJECT; +/* The actual response size for each object type */ +static u16 res_size[HPI_OBJ_MAXINDEX + 1] = HPI_RESPONSE_SIZE_BY_OBJECT; +/* Flag to enable alternate message type for SSX2 bypass. */ +static u16 gwSSX2_bypass; + +/** \internal + * Used by ASIO driver to disable SSX2 for a single process + * \param phSubSys Pointer to HPI subsystem handle. + * \param wBypass New bypass setting 0 = off, nonzero = on + * \return Previous bypass setting. + */ +u16 hpi_subsys_ssx2_bypass(const struct hpi_hsubsys *ph_subsys, u16 bypass) +{ + u16 old_value = gwSSX2_bypass; + + gwSSX2_bypass = bypass; + + return old_value; +} + +/** \internal + * initialize the HPI message structure + */ +static void hpi_init_message(struct hpi_message *phm, u16 object, + u16 function) +{ + memset(phm, 0, sizeof(*phm)); + if ((object > 0) && (object <= HPI_OBJ_MAXINDEX)) + phm->size = msg_size[object]; + else + phm->size = sizeof(*phm); + + if (gwSSX2_bypass) + phm->type = HPI_TYPE_SSX2BYPASS_MESSAGE; + else + phm->type = HPI_TYPE_MESSAGE; + phm->object = object; + phm->function = function; + phm->version = 0; + /* Expect adapter index to be set by caller */ +} + +/** \internal + * initialize the HPI response structure + */ +void hpi_init_response(struct hpi_response *phr, u16 object, u16 function, + u16 error) +{ + memset(phr, 0, sizeof(*phr)); + phr->type = HPI_TYPE_RESPONSE; + if ((object > 0) && (object <= HPI_OBJ_MAXINDEX)) + phr->size = res_size[object]; + else + phr->size = sizeof(*phr); + phr->object = object; + phr->function = function; + phr->error = error; + phr->specific_error = 0; + phr->version = 0; +} + +void hpi_init_message_response(struct hpi_message *phm, + struct hpi_response *phr, u16 object, u16 function) +{ + hpi_init_message(phm, object, function); + /* default error return if the response is + not filled in by the callee */ + hpi_init_response(phr, object, function, + HPI_ERROR_PROCESSING_MESSAGE); +} + +static void hpi_init_messageV1(struct hpi_message_header *phm, u16 size, + u16 object, u16 function) +{ + memset(phm, 0, sizeof(*phm)); + if ((object > 0) && (object <= HPI_OBJ_MAXINDEX)) { + phm->size = size; + phm->type = HPI_TYPE_MESSAGE; + phm->object = object; + phm->function = function; + phm->version = 1; + /* Expect adapter index to be set by caller */ + } +} + +void hpi_init_responseV1(struct hpi_response_header *phr, u16 size, + u16 object, u16 function) +{ + memset(phr, 0, sizeof(*phr)); + phr->size = size; + phr->version = 1; + phr->type = HPI_TYPE_RESPONSE; + phr->error = HPI_ERROR_PROCESSING_MESSAGE; +} + +void hpi_init_message_responseV1(struct hpi_message_header *phm, u16 msg_size, + struct hpi_response_header *phr, u16 res_size, u16 object, + u16 function) +{ + hpi_init_messageV1(phm, msg_size, object, function); + hpi_init_responseV1(phr, res_size, object, function); +} diff --git a/sound/pci/asihpi/hpimsginit.h b/sound/pci/asihpi/hpimsginit.h new file mode 100644 index 00000000000..864ad020c9b --- /dev/null +++ b/sound/pci/asihpi/hpimsginit.h @@ -0,0 +1,40 @@ +/****************************************************************************** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Hardware Programming Interface (HPI) Utility functions + + (C) Copyright AudioScience Inc. 2007 +*******************************************************************************/ +/* Initialise response headers, or msg/response pairs. +Note that it is valid to just init a response e.g. when a lower level is preparing +a response to a message. +However, when sending a message, a matching response buffer always must be prepared +*/ + +void hpi_init_response(struct hpi_response *phr, u16 object, u16 function, + u16 error); + +void hpi_init_message_response(struct hpi_message *phm, + struct hpi_response *phr, u16 object, u16 function); + +void hpi_init_responseV1(struct hpi_response_header *phr, u16 size, + u16 object, u16 function); + +void hpi_init_message_responseV1(struct hpi_message_header *phm, u16 msg_size, + struct hpi_response_header *phr, u16 res_size, u16 object, + u16 function); diff --git a/sound/pci/asihpi/hpimsgx.c b/sound/pci/asihpi/hpimsgx.c new file mode 100644 index 00000000000..2ee90dc3d89 --- /dev/null +++ b/sound/pci/asihpi/hpimsgx.c @@ -0,0 +1,907 @@ +/****************************************************************************** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +Extended Message Function With Response Cacheing + +(C) Copyright AudioScience Inc. 2002 +*****************************************************************************/ +#define SOURCEFILE_NAME "hpimsgx.c" +#include "hpi_internal.h" +#include "hpimsginit.h" +#include "hpimsgx.h" +#include "hpidebug.h" + +static struct pci_device_id asihpi_pci_tbl[] = { +#include "hpipcida.h" +}; + +static struct hpios_spinlock msgx_lock; + +static hpi_handler_func *hpi_entry_points[HPI_MAX_ADAPTERS]; + +static hpi_handler_func *hpi_lookup_entry_point_function(const struct hpi_pci + *pci_info) +{ + + int i; + + for (i = 0; asihpi_pci_tbl[i].vendor != 0; i++) { + if (asihpi_pci_tbl[i].vendor != PCI_ANY_ID + && asihpi_pci_tbl[i].vendor != pci_info->vendor_id) + continue; + if (asihpi_pci_tbl[i].device != PCI_ANY_ID + && asihpi_pci_tbl[i].device != pci_info->device_id) + continue; + if (asihpi_pci_tbl[i].subvendor != PCI_ANY_ID + && asihpi_pci_tbl[i].subvendor != + pci_info->subsys_vendor_id) + continue; + if (asihpi_pci_tbl[i].subdevice != PCI_ANY_ID + && asihpi_pci_tbl[i].subdevice != + pci_info->subsys_device_id) + continue; + + HPI_DEBUG_LOG(DEBUG, " %x,%lu\n", i, + asihpi_pci_tbl[i].driver_data); + return (hpi_handler_func *) asihpi_pci_tbl[i].driver_data; + } + + return NULL; +} + +static inline void hw_entry_point(struct hpi_message *phm, + struct hpi_response *phr) +{ + + hpi_handler_func *ep; + + if (phm->adapter_index < HPI_MAX_ADAPTERS) { + ep = (hpi_handler_func *) hpi_entry_points[phm-> + adapter_index]; + if (ep) { + HPI_DEBUG_MESSAGE(DEBUG, phm); + ep(phm, phr); + HPI_DEBUG_RESPONSE(phr); + return; + } + } + hpi_init_response(phr, phm->object, phm->function, + HPI_ERROR_PROCESSING_MESSAGE); +} + +static void adapter_open(struct hpi_message *phm, struct hpi_response *phr); +static void adapter_close(struct hpi_message *phm, struct hpi_response *phr); + +static void mixer_open(struct hpi_message *phm, struct hpi_response *phr); +static void mixer_close(struct hpi_message *phm, struct hpi_response *phr); + +static void outstream_open(struct hpi_message *phm, struct hpi_response *phr, + void *h_owner); +static void outstream_close(struct hpi_message *phm, struct hpi_response *phr, + void *h_owner); +static void instream_open(struct hpi_message *phm, struct hpi_response *phr, + void *h_owner); +static void instream_close(struct hpi_message *phm, struct hpi_response *phr, + void *h_owner); + +static void HPIMSGX__reset(u16 adapter_index); +static u16 HPIMSGX__init(struct hpi_message *phm, struct hpi_response *phr); +static void HPIMSGX__cleanup(u16 adapter_index, void *h_owner); + +#ifndef DISABLE_PRAGMA_PACK1 +#pragma pack(push, 1) +#endif + +struct hpi_subsys_response { + struct hpi_response_header h; + struct hpi_subsys_res s; +}; + +struct hpi_adapter_response { + struct hpi_response_header h; + struct hpi_adapter_res a; +}; + +struct hpi_mixer_response { + struct hpi_response_header h; + struct hpi_mixer_res m; +}; + +struct hpi_stream_response { + struct hpi_response_header h; + struct hpi_stream_res d; +}; + +struct adapter_info { + u16 type; + u16 num_instreams; + u16 num_outstreams; +}; + +struct asi_open_state { + int open_flag; + void *h_owner; +}; + +#ifndef DISABLE_PRAGMA_PACK1 +#pragma pack(pop) +#endif + +/* Globals */ +static struct hpi_adapter_response rESP_HPI_ADAPTER_OPEN[HPI_MAX_ADAPTERS]; + +static struct hpi_stream_response + rESP_HPI_OSTREAM_OPEN[HPI_MAX_ADAPTERS][HPI_MAX_STREAMS]; + +static struct hpi_stream_response + rESP_HPI_ISTREAM_OPEN[HPI_MAX_ADAPTERS][HPI_MAX_STREAMS]; + +static struct hpi_mixer_response rESP_HPI_MIXER_OPEN[HPI_MAX_ADAPTERS]; + +static struct hpi_subsys_response gRESP_HPI_SUBSYS_FIND_ADAPTERS; + +static struct adapter_info aDAPTER_INFO[HPI_MAX_ADAPTERS]; + +/* use these to keep track of opens from user mode apps/DLLs */ +static struct asi_open_state + outstream_user_open[HPI_MAX_ADAPTERS][HPI_MAX_STREAMS]; + +static struct asi_open_state + instream_user_open[HPI_MAX_ADAPTERS][HPI_MAX_STREAMS]; + +static void subsys_message(struct hpi_message *phm, struct hpi_response *phr, + void *h_owner) +{ + switch (phm->function) { + case HPI_SUBSYS_GET_VERSION: + hpi_init_response(phr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_GET_VERSION, 0); + phr->u.s.version = HPI_VER >> 8; /* return major.minor */ + phr->u.s.data = HPI_VER; /* return major.minor.release */ + break; + case HPI_SUBSYS_OPEN: + /*do not propagate the message down the chain */ + hpi_init_response(phr, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_OPEN, 0); + break; + case HPI_SUBSYS_CLOSE: + /*do not propagate the message down the chain */ + hpi_init_response(phr, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_CLOSE, + 0); + HPIMSGX__cleanup(HPIMSGX_ALLADAPTERS, h_owner); + break; + case HPI_SUBSYS_DRIVER_LOAD: + /* Initialize this module's internal state */ + hpios_msgxlock_init(&msgx_lock); + memset(&hpi_entry_points, 0, sizeof(hpi_entry_points)); + hpios_locked_mem_init(); + /* Init subsys_findadapters response to no-adapters */ + HPIMSGX__reset(HPIMSGX_ALLADAPTERS); + hpi_init_response(phr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_DRIVER_LOAD, 0); + /* individual HPIs dont implement driver load */ + HPI_COMMON(phm, phr); + break; + case HPI_SUBSYS_DRIVER_UNLOAD: + HPI_COMMON(phm, phr); + HPIMSGX__cleanup(HPIMSGX_ALLADAPTERS, h_owner); + hpios_locked_mem_free_all(); + hpi_init_response(phr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_DRIVER_UNLOAD, 0); + return; + + case HPI_SUBSYS_GET_INFO: + HPI_COMMON(phm, phr); + break; + + case HPI_SUBSYS_FIND_ADAPTERS: + memcpy(phr, &gRESP_HPI_SUBSYS_FIND_ADAPTERS, + sizeof(gRESP_HPI_SUBSYS_FIND_ADAPTERS)); + break; + case HPI_SUBSYS_GET_NUM_ADAPTERS: + memcpy(phr, &gRESP_HPI_SUBSYS_FIND_ADAPTERS, + sizeof(gRESP_HPI_SUBSYS_FIND_ADAPTERS)); + phr->function = HPI_SUBSYS_GET_NUM_ADAPTERS; + break; + case HPI_SUBSYS_GET_ADAPTER: + { + int count = phm->adapter_index; + int index = 0; + hpi_init_response(phr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_GET_ADAPTER, 0); + + /* This is complicated by the fact that we want to + * "skip" 0's in the adapter list. + * First, make sure we are pointing to a + * non-zero adapter type. + */ + while (gRESP_HPI_SUBSYS_FIND_ADAPTERS. + s.aw_adapter_list[index] == 0) { + index++; + if (index >= HPI_MAX_ADAPTERS) + break; + } + while (count) { + /* move on to the next adapter */ + index++; + if (index >= HPI_MAX_ADAPTERS) + break; + while (gRESP_HPI_SUBSYS_FIND_ADAPTERS. + s.aw_adapter_list[index] == 0) { + index++; + if (index >= HPI_MAX_ADAPTERS) + break; + } + count--; + } + + if (index < HPI_MAX_ADAPTERS) { + phr->u.s.adapter_index = (u16)index; + phr->u.s.aw_adapter_list[0] = + gRESP_HPI_SUBSYS_FIND_ADAPTERS. + s.aw_adapter_list[index]; + } else { + phr->u.s.adapter_index = 0; + phr->u.s.aw_adapter_list[0] = 0; + phr->error = HPI_ERROR_BAD_ADAPTER_NUMBER; + } + break; + } + case HPI_SUBSYS_CREATE_ADAPTER: + HPIMSGX__init(phm, phr); + break; + case HPI_SUBSYS_DELETE_ADAPTER: + HPIMSGX__cleanup(phm->adapter_index, h_owner); + { + struct hpi_message hm; + struct hpi_response hr; + /* call to HPI_ADAPTER_CLOSE */ + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_CLOSE); + hm.adapter_index = phm->adapter_index; + hw_entry_point(&hm, &hr); + } + hw_entry_point(phm, phr); + gRESP_HPI_SUBSYS_FIND_ADAPTERS.s. + aw_adapter_list[phm->adapter_index] + = 0; + hpi_entry_points[phm->adapter_index] = NULL; + break; + default: + hw_entry_point(phm, phr); + break; + } +} + +static void adapter_message(struct hpi_message *phm, struct hpi_response *phr, + void *h_owner) +{ + switch (phm->function) { + case HPI_ADAPTER_OPEN: + adapter_open(phm, phr); + break; + case HPI_ADAPTER_CLOSE: + adapter_close(phm, phr); + break; + default: + hw_entry_point(phm, phr); + break; + } +} + +static void mixer_message(struct hpi_message *phm, struct hpi_response *phr) +{ + switch (phm->function) { + case HPI_MIXER_OPEN: + mixer_open(phm, phr); + break; + case HPI_MIXER_CLOSE: + mixer_close(phm, phr); + break; + default: + hw_entry_point(phm, phr); + break; + } +} + +static void outstream_message(struct hpi_message *phm, + struct hpi_response *phr, void *h_owner) +{ + if (phm->obj_index >= aDAPTER_INFO[phm->adapter_index].num_outstreams) { + hpi_init_response(phr, HPI_OBJ_OSTREAM, phm->function, + HPI_ERROR_INVALID_OBJ_INDEX); + return; + } + + switch (phm->function) { + case HPI_OSTREAM_OPEN: + outstream_open(phm, phr, h_owner); + break; + case HPI_OSTREAM_CLOSE: + outstream_close(phm, phr, h_owner); + break; + default: + hw_entry_point(phm, phr); + break; + } +} + +static void instream_message(struct hpi_message *phm, + struct hpi_response *phr, void *h_owner) +{ + if (phm->obj_index >= aDAPTER_INFO[phm->adapter_index].num_instreams) { + hpi_init_response(phr, HPI_OBJ_ISTREAM, phm->function, + HPI_ERROR_INVALID_OBJ_INDEX); + return; + } + + switch (phm->function) { + case HPI_ISTREAM_OPEN: + instream_open(phm, phr, h_owner); + break; + case HPI_ISTREAM_CLOSE: + instream_close(phm, phr, h_owner); + break; + default: + hw_entry_point(phm, phr); + break; + } +} + +/* NOTE: HPI_Message() must be defined in the driver as a wrapper for + * HPI_MessageEx so that functions in hpifunc.c compile. + */ +void hpi_send_recv_ex(struct hpi_message *phm, struct hpi_response *phr, + void *h_owner) +{ + HPI_DEBUG_MESSAGE(DEBUG, phm); + + if (phm->type != HPI_TYPE_MESSAGE) { + hpi_init_response(phr, phm->object, phm->function, + HPI_ERROR_INVALID_TYPE); + return; + } + + if (phm->adapter_index >= HPI_MAX_ADAPTERS + && phm->adapter_index != HPIMSGX_ALLADAPTERS) { + hpi_init_response(phr, phm->object, phm->function, + HPI_ERROR_BAD_ADAPTER_NUMBER); + return; + } + + switch (phm->object) { + case HPI_OBJ_SUBSYSTEM: + subsys_message(phm, phr, h_owner); + break; + + case HPI_OBJ_ADAPTER: + adapter_message(phm, phr, h_owner); + break; + + case HPI_OBJ_MIXER: + mixer_message(phm, phr); + break; + + case HPI_OBJ_OSTREAM: + outstream_message(phm, phr, h_owner); + break; + + case HPI_OBJ_ISTREAM: + instream_message(phm, phr, h_owner); + break; + + default: + hw_entry_point(phm, phr); + break; + } + HPI_DEBUG_RESPONSE(phr); +#if 1 + if (phr->error >= HPI_ERROR_BACKEND_BASE) { + void *ep = NULL; + char *ep_name; + + HPI_DEBUG_MESSAGE(ERROR, phm); + + if (phm->adapter_index < HPI_MAX_ADAPTERS) + ep = hpi_entry_points[phm->adapter_index]; + + /* Don't need this? Have adapter index in debug info + Know at driver load time index->backend mapping */ + if (ep == HPI_6000) + ep_name = "HPI_6000"; + else if (ep == HPI_6205) + ep_name = "HPI_6205"; + else + ep_name = "unknown"; + + HPI_DEBUG_LOG(ERROR, "HPI %s response - error# %d\n", ep_name, + phr->error); + + if (hpi_debug_level >= HPI_DEBUG_LEVEL_VERBOSE) + hpi_debug_data((u16 *)phm, + sizeof(*phm) / sizeof(u16)); + } +#endif +} + +static void adapter_open(struct hpi_message *phm, struct hpi_response *phr) +{ + HPI_DEBUG_LOG(VERBOSE, "adapter_open\n"); + memcpy(phr, &rESP_HPI_ADAPTER_OPEN[phm->adapter_index], + sizeof(rESP_HPI_ADAPTER_OPEN[0])); +} + +static void adapter_close(struct hpi_message *phm, struct hpi_response *phr) +{ + HPI_DEBUG_LOG(VERBOSE, "adapter_close\n"); + hpi_init_response(phr, HPI_OBJ_ADAPTER, HPI_ADAPTER_CLOSE, 0); +} + +static void mixer_open(struct hpi_message *phm, struct hpi_response *phr) +{ + memcpy(phr, &rESP_HPI_MIXER_OPEN[phm->adapter_index], + sizeof(rESP_HPI_MIXER_OPEN[0])); +} + +static void mixer_close(struct hpi_message *phm, struct hpi_response *phr) +{ + hpi_init_response(phr, HPI_OBJ_MIXER, HPI_MIXER_CLOSE, 0); +} + +static void instream_open(struct hpi_message *phm, struct hpi_response *phr, + void *h_owner) +{ + + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_response(phr, HPI_OBJ_ISTREAM, HPI_ISTREAM_OPEN, 0); + + hpios_msgxlock_lock(&msgx_lock); + + if (instream_user_open[phm->adapter_index][phm->obj_index].open_flag) + phr->error = HPI_ERROR_OBJ_ALREADY_OPEN; + else if (rESP_HPI_ISTREAM_OPEN[phm->adapter_index] + [phm->obj_index].h.error) + memcpy(phr, + &rESP_HPI_ISTREAM_OPEN[phm->adapter_index][phm-> + obj_index], + sizeof(rESP_HPI_ISTREAM_OPEN[0][0])); + else { + instream_user_open[phm->adapter_index][phm-> + obj_index].open_flag = 1; + hpios_msgxlock_un_lock(&msgx_lock); + + /* issue a reset */ + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_RESET); + hm.adapter_index = phm->adapter_index; + hm.obj_index = phm->obj_index; + hw_entry_point(&hm, &hr); + + hpios_msgxlock_lock(&msgx_lock); + if (hr.error) { + instream_user_open[phm->adapter_index][phm-> + obj_index].open_flag = 0; + phr->error = hr.error; + } else { + instream_user_open[phm->adapter_index][phm-> + obj_index].open_flag = 1; + instream_user_open[phm->adapter_index][phm-> + obj_index].h_owner = h_owner; + memcpy(phr, + &rESP_HPI_ISTREAM_OPEN[phm->adapter_index] + [phm->obj_index], + sizeof(rESP_HPI_ISTREAM_OPEN[0][0])); + } + } + hpios_msgxlock_un_lock(&msgx_lock); +} + +static void instream_close(struct hpi_message *phm, struct hpi_response *phr, + void *h_owner) +{ + + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_response(phr, HPI_OBJ_ISTREAM, HPI_ISTREAM_CLOSE, 0); + + hpios_msgxlock_lock(&msgx_lock); + if (h_owner == + instream_user_open[phm->adapter_index][phm-> + obj_index].h_owner) { + /* HPI_DEBUG_LOG(INFO,"closing adapter %d " + "instream %d owned by %p\n", + phm->wAdapterIndex, phm->wObjIndex, hOwner); */ + instream_user_open[phm->adapter_index][phm-> + obj_index].h_owner = NULL; + hpios_msgxlock_un_lock(&msgx_lock); + /* issue a reset */ + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_RESET); + hm.adapter_index = phm->adapter_index; + hm.obj_index = phm->obj_index; + hw_entry_point(&hm, &hr); + hpios_msgxlock_lock(&msgx_lock); + if (hr.error) { + instream_user_open[phm->adapter_index][phm-> + obj_index].h_owner = h_owner; + phr->error = hr.error; + } else { + instream_user_open[phm->adapter_index][phm-> + obj_index].open_flag = 0; + instream_user_open[phm->adapter_index][phm-> + obj_index].h_owner = NULL; + } + } else { + HPI_DEBUG_LOG(WARNING, + "%p trying to close %d instream %d owned by %p\n", + h_owner, phm->adapter_index, phm->obj_index, + instream_user_open[phm->adapter_index][phm-> + obj_index].h_owner); + phr->error = HPI_ERROR_OBJ_NOT_OPEN; + } + hpios_msgxlock_un_lock(&msgx_lock); +} + +static void outstream_open(struct hpi_message *phm, struct hpi_response *phr, + void *h_owner) +{ + + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_response(phr, HPI_OBJ_OSTREAM, HPI_OSTREAM_OPEN, 0); + + hpios_msgxlock_lock(&msgx_lock); + + if (outstream_user_open[phm->adapter_index][phm->obj_index].open_flag) + phr->error = HPI_ERROR_OBJ_ALREADY_OPEN; + else if (rESP_HPI_OSTREAM_OPEN[phm->adapter_index] + [phm->obj_index].h.error) + memcpy(phr, + &rESP_HPI_OSTREAM_OPEN[phm->adapter_index][phm-> + obj_index], + sizeof(rESP_HPI_OSTREAM_OPEN[0][0])); + else { + outstream_user_open[phm->adapter_index][phm-> + obj_index].open_flag = 1; + hpios_msgxlock_un_lock(&msgx_lock); + + /* issue a reset */ + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_RESET); + hm.adapter_index = phm->adapter_index; + hm.obj_index = phm->obj_index; + hw_entry_point(&hm, &hr); + + hpios_msgxlock_lock(&msgx_lock); + if (hr.error) { + outstream_user_open[phm->adapter_index][phm-> + obj_index].open_flag = 0; + phr->error = hr.error; + } else { + outstream_user_open[phm->adapter_index][phm-> + obj_index].open_flag = 1; + outstream_user_open[phm->adapter_index][phm-> + obj_index].h_owner = h_owner; + memcpy(phr, + &rESP_HPI_OSTREAM_OPEN[phm->adapter_index] + [phm->obj_index], + sizeof(rESP_HPI_OSTREAM_OPEN[0][0])); + } + } + hpios_msgxlock_un_lock(&msgx_lock); +} + +static void outstream_close(struct hpi_message *phm, struct hpi_response *phr, + void *h_owner) +{ + + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_response(phr, HPI_OBJ_OSTREAM, HPI_OSTREAM_CLOSE, 0); + + hpios_msgxlock_lock(&msgx_lock); + + if (h_owner == + outstream_user_open[phm->adapter_index][phm-> + obj_index].h_owner) { + /* HPI_DEBUG_LOG(INFO,"closing adapter %d " + "outstream %d owned by %p\n", + phm->wAdapterIndex, phm->wObjIndex, hOwner); */ + outstream_user_open[phm->adapter_index][phm-> + obj_index].h_owner = NULL; + hpios_msgxlock_un_lock(&msgx_lock); + /* issue a reset */ + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_RESET); + hm.adapter_index = phm->adapter_index; + hm.obj_index = phm->obj_index; + hw_entry_point(&hm, &hr); + hpios_msgxlock_lock(&msgx_lock); + if (hr.error) { + outstream_user_open[phm->adapter_index][phm-> + obj_index].h_owner = h_owner; + phr->error = hr.error; + } else { + outstream_user_open[phm->adapter_index][phm-> + obj_index].open_flag = 0; + outstream_user_open[phm->adapter_index][phm-> + obj_index].h_owner = NULL; + } + } else { + HPI_DEBUG_LOG(WARNING, + "%p trying to close %d outstream %d owned by %p\n", + h_owner, phm->adapter_index, phm->obj_index, + outstream_user_open[phm->adapter_index][phm-> + obj_index].h_owner); + phr->error = HPI_ERROR_OBJ_NOT_OPEN; + } + hpios_msgxlock_un_lock(&msgx_lock); +} + +static u16 adapter_prepare(u16 adapter) +{ + struct hpi_message hm; + struct hpi_response hr; + + /* Open the adapter and streams */ + u16 i; + + /* call to HPI_ADAPTER_OPEN */ + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_OPEN); + hm.adapter_index = adapter; + hw_entry_point(&hm, &hr); + memcpy(&rESP_HPI_ADAPTER_OPEN[adapter], &hr, + sizeof(rESP_HPI_ADAPTER_OPEN[0])); + if (hr.error) + return hr.error; + + /* call to HPI_ADAPTER_GET_INFO */ + hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_GET_INFO); + hm.adapter_index = adapter; + hw_entry_point(&hm, &hr); + if (hr.error) + return hr.error; + + aDAPTER_INFO[adapter].num_outstreams = hr.u.a.num_outstreams; + aDAPTER_INFO[adapter].num_instreams = hr.u.a.num_instreams; + aDAPTER_INFO[adapter].type = hr.u.a.adapter_type; + + gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.aw_adapter_list[adapter] = + hr.u.a.adapter_type; + gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.num_adapters++; + if (gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.num_adapters > HPI_MAX_ADAPTERS) + gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.num_adapters = + HPI_MAX_ADAPTERS; + + /* call to HPI_OSTREAM_OPEN */ + for (i = 0; i < aDAPTER_INFO[adapter].num_outstreams; i++) { + hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_OPEN); + hm.adapter_index = adapter; + hm.obj_index = i; + hw_entry_point(&hm, &hr); + memcpy(&rESP_HPI_OSTREAM_OPEN[adapter][i], &hr, + sizeof(rESP_HPI_OSTREAM_OPEN[0][0])); + outstream_user_open[adapter][i].open_flag = 0; + outstream_user_open[adapter][i].h_owner = NULL; + } + + /* call to HPI_ISTREAM_OPEN */ + for (i = 0; i < aDAPTER_INFO[adapter].num_instreams; i++) { + hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_OPEN); + hm.adapter_index = adapter; + hm.obj_index = i; + hw_entry_point(&hm, &hr); + memcpy(&rESP_HPI_ISTREAM_OPEN[adapter][i], &hr, + sizeof(rESP_HPI_ISTREAM_OPEN[0][0])); + instream_user_open[adapter][i].open_flag = 0; + instream_user_open[adapter][i].h_owner = NULL; + } + + /* call to HPI_MIXER_OPEN */ + hpi_init_message_response(&hm, &hr, HPI_OBJ_MIXER, HPI_MIXER_OPEN); + hm.adapter_index = adapter; + hw_entry_point(&hm, &hr); + memcpy(&rESP_HPI_MIXER_OPEN[adapter], &hr, + sizeof(rESP_HPI_MIXER_OPEN[0])); + + return gRESP_HPI_SUBSYS_FIND_ADAPTERS.h.error; +} + +static void HPIMSGX__reset(u16 adapter_index) +{ + int i; + u16 adapter; + struct hpi_response hr; + + if (adapter_index == HPIMSGX_ALLADAPTERS) { + /* reset all responses to contain errors */ + hpi_init_response(&hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_FIND_ADAPTERS, 0); + memcpy(&gRESP_HPI_SUBSYS_FIND_ADAPTERS, &hr, + sizeof(&gRESP_HPI_SUBSYS_FIND_ADAPTERS)); + + for (adapter = 0; adapter < HPI_MAX_ADAPTERS; adapter++) { + + hpi_init_response(&hr, HPI_OBJ_ADAPTER, + HPI_ADAPTER_OPEN, HPI_ERROR_BAD_ADAPTER); + memcpy(&rESP_HPI_ADAPTER_OPEN[adapter], &hr, + sizeof(rESP_HPI_ADAPTER_OPEN[adapter])); + + hpi_init_response(&hr, HPI_OBJ_MIXER, HPI_MIXER_OPEN, + HPI_ERROR_INVALID_OBJ); + memcpy(&rESP_HPI_MIXER_OPEN[adapter], &hr, + sizeof(rESP_HPI_MIXER_OPEN[adapter])); + + for (i = 0; i < HPI_MAX_STREAMS; i++) { + hpi_init_response(&hr, HPI_OBJ_OSTREAM, + HPI_OSTREAM_OPEN, + HPI_ERROR_INVALID_OBJ); + memcpy(&rESP_HPI_OSTREAM_OPEN[adapter][i], + &hr, + sizeof(rESP_HPI_OSTREAM_OPEN[adapter] + [i])); + hpi_init_response(&hr, HPI_OBJ_ISTREAM, + HPI_ISTREAM_OPEN, + HPI_ERROR_INVALID_OBJ); + memcpy(&rESP_HPI_ISTREAM_OPEN[adapter][i], + &hr, + sizeof(rESP_HPI_ISTREAM_OPEN[adapter] + [i])); + } + } + } else if (adapter_index < HPI_MAX_ADAPTERS) { + rESP_HPI_ADAPTER_OPEN[adapter_index].h.error = + HPI_ERROR_BAD_ADAPTER; + rESP_HPI_MIXER_OPEN[adapter_index].h.error = + HPI_ERROR_INVALID_OBJ; + for (i = 0; i < HPI_MAX_STREAMS; i++) { + rESP_HPI_OSTREAM_OPEN[adapter_index][i].h.error = + HPI_ERROR_INVALID_OBJ; + rESP_HPI_ISTREAM_OPEN[adapter_index][i].h.error = + HPI_ERROR_INVALID_OBJ; + } + if (gRESP_HPI_SUBSYS_FIND_ADAPTERS. + s.aw_adapter_list[adapter_index]) { + gRESP_HPI_SUBSYS_FIND_ADAPTERS. + s.aw_adapter_list[adapter_index] = 0; + gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.num_adapters--; + } + } +} + +static u16 HPIMSGX__init(struct hpi_message *phm, + /* HPI_SUBSYS_CREATE_ADAPTER structure with */ + /* resource list or NULL=find all */ + struct hpi_response *phr + /* response from HPI_ADAPTER_GET_INFO */ + ) +{ + hpi_handler_func *entry_point_func; + struct hpi_response hr; + + if (gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.num_adapters >= HPI_MAX_ADAPTERS) + return HPI_ERROR_BAD_ADAPTER_NUMBER; + + /* Init response here so we can pass in previous adapter list */ + hpi_init_response(&hr, phm->object, phm->function, + HPI_ERROR_INVALID_OBJ); + memcpy(hr.u.s.aw_adapter_list, + gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.aw_adapter_list, + sizeof(gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.aw_adapter_list)); + + entry_point_func = + hpi_lookup_entry_point_function(phm->u.s.resource.r.pci); + + if (entry_point_func) { + HPI_DEBUG_MESSAGE(DEBUG, phm); + entry_point_func(phm, &hr); + } else { + phr->error = HPI_ERROR_PROCESSING_MESSAGE; + return phr->error; + } + if (hr.error == 0) { + /* the adapter was created succesfully + save the mapping for future use */ + hpi_entry_points[hr.u.s.adapter_index] = entry_point_func; + /* prepare adapter (pre-open streams etc.) */ + HPI_DEBUG_LOG(DEBUG, + "HPI_SUBSYS_CREATE_ADAPTER successful," + " preparing adapter\n"); + adapter_prepare(hr.u.s.adapter_index); + } + memcpy(phr, &hr, hr.size); + return phr->error; +} + +static void HPIMSGX__cleanup(u16 adapter_index, void *h_owner) +{ + int i, adapter, adapter_limit; + + if (!h_owner) + return; + + if (adapter_index == HPIMSGX_ALLADAPTERS) { + adapter = 0; + adapter_limit = HPI_MAX_ADAPTERS; + } else { + adapter = adapter_index; + adapter_limit = adapter + 1; + } + + for (; adapter < adapter_limit; adapter++) { + /* printk(KERN_INFO "Cleanup adapter #%d\n",wAdapter); */ + for (i = 0; i < HPI_MAX_STREAMS; i++) { + if (h_owner == + outstream_user_open[adapter][i].h_owner) { + struct hpi_message hm; + struct hpi_response hr; + + HPI_DEBUG_LOG(DEBUG, + "close adapter %d ostream %d\n", + adapter, i); + + hpi_init_message_response(&hm, &hr, + HPI_OBJ_OSTREAM, HPI_OSTREAM_RESET); + hm.adapter_index = (u16)adapter; + hm.obj_index = (u16)i; + hw_entry_point(&hm, &hr); + + hm.function = HPI_OSTREAM_HOSTBUFFER_FREE; + hw_entry_point(&hm, &hr); + + hm.function = HPI_OSTREAM_GROUP_RESET; + hw_entry_point(&hm, &hr); + + outstream_user_open[adapter][i].open_flag = 0; + outstream_user_open[adapter][i].h_owner = + NULL; + } + if (h_owner == instream_user_open[adapter][i].h_owner) { + struct hpi_message hm; + struct hpi_response hr; + + HPI_DEBUG_LOG(DEBUG, + "close adapter %d istream %d\n", + adapter, i); + + hpi_init_message_response(&hm, &hr, + HPI_OBJ_ISTREAM, HPI_ISTREAM_RESET); + hm.adapter_index = (u16)adapter; + hm.obj_index = (u16)i; + hw_entry_point(&hm, &hr); + + hm.function = HPI_ISTREAM_HOSTBUFFER_FREE; + hw_entry_point(&hm, &hr); + + hm.function = HPI_ISTREAM_GROUP_RESET; + hw_entry_point(&hm, &hr); + + instream_user_open[adapter][i].open_flag = 0; + instream_user_open[adapter][i].h_owner = NULL; + } + } + } +} diff --git a/sound/pci/asihpi/hpimsgx.h b/sound/pci/asihpi/hpimsgx.h new file mode 100644 index 00000000000..fd49e7542a8 --- /dev/null +++ b/sound/pci/asihpi/hpimsgx.h @@ -0,0 +1,36 @@ +/****************************************************************************** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + HPI Extended Message Handler Functions + +(C) Copyright AudioScience Inc. 1997-2003 +******************************************************************************/ + +#ifndef _HPIMSGX_H_ +#define _HPIMSGX_H_ + +#include "hpi_internal.h" + +#define HPIMSGX_ALLADAPTERS (0xFFFF) + +void hpi_send_recv_ex(struct hpi_message *phm, struct hpi_response *phr, + void *h_owner); + +#define HPI_MESSAGE_LOWER_LAYER hpi_send_recv_ex + +#endif /* _HPIMSGX_H_ */ diff --git a/sound/pci/asihpi/hpioctl.c b/sound/pci/asihpi/hpioctl.c new file mode 100644 index 00000000000..7396ac54e99 --- /dev/null +++ b/sound/pci/asihpi/hpioctl.c @@ -0,0 +1,484 @@ +/******************************************************************************* + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +Common Linux HPI ioctl and module probe/remove functions +*******************************************************************************/ +#define SOURCEFILE_NAME "hpioctl.c" + +#include "hpi_internal.h" +#include "hpimsginit.h" +#include "hpidebug.h" +#include "hpimsgx.h" +#include "hpioctl.h" + +#include +#include +#include +#include +#include + +#ifdef MODULE_FIRMWARE +MODULE_FIRMWARE("asihpi/dsp5000.bin"); +MODULE_FIRMWARE("asihpi/dsp6200.bin"); +MODULE_FIRMWARE("asihpi/dsp6205.bin"); +MODULE_FIRMWARE("asihpi/dsp6400.bin"); +MODULE_FIRMWARE("asihpi/dsp6600.bin"); +MODULE_FIRMWARE("asihpi/dsp8700.bin"); +MODULE_FIRMWARE("asihpi/dsp8900.bin"); +#endif + +static int prealloc_stream_buf; +module_param(prealloc_stream_buf, int, S_IRUGO); +MODULE_PARM_DESC(prealloc_stream_buf, + "preallocate size for per-adapter stream buffer"); + +/* Allow the debug level to be changed after module load. + E.g. echo 2 > /sys/module/asihpi/parameters/hpiDebugLevel +*/ +module_param(hpi_debug_level, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(hpi_debug_level, "debug verbosity 0..5"); + +/* List of adapters found */ +static struct hpi_adapter adapters[HPI_MAX_ADAPTERS]; + +/* Wrapper function to HPI_Message to enable dumping of the + message and response types. +*/ +static void hpi_send_recv_f(struct hpi_message *phm, struct hpi_response *phr, + struct file *file) +{ + int adapter = phm->adapter_index; + + if ((adapter >= HPI_MAX_ADAPTERS || adapter < 0) + && (phm->object != HPI_OBJ_SUBSYSTEM)) + phr->error = HPI_ERROR_INVALID_OBJ_INDEX; + else + hpi_send_recv_ex(phm, phr, file); +} + +/* This is called from hpifunc.c functions, called by ALSA + * (or other kernel process) In this case there is no file descriptor + * available for the message cache code + */ +void hpi_send_recv(struct hpi_message *phm, struct hpi_response *phr) +{ + hpi_send_recv_f(phm, phr, HOWNER_KERNEL); +} + +EXPORT_SYMBOL(hpi_send_recv); +/* for radio-asihpi */ + +int asihpi_hpi_release(struct file *file) +{ + struct hpi_message hm; + struct hpi_response hr; + +/* HPI_DEBUG_LOG(INFO,"hpi_release file %p, pid %d\n", file, current->pid); */ + /* close the subsystem just in case the application forgot to. */ + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_CLOSE); + hpi_send_recv_ex(&hm, &hr, file); + return 0; +} + +long asihpi_hpi_ioctl(struct file *file, unsigned int cmd, unsigned long arg) +{ + struct hpi_ioctl_linux __user *phpi_ioctl_data; + void __user *puhm; + void __user *puhr; + union hpi_message_buffer_v1 *hm; + union hpi_response_buffer_v1 *hr; + u16 res_max_size; + u32 uncopied_bytes; + struct hpi_adapter *pa = NULL; + int err = 0; + + if (cmd != HPI_IOCTL_LINUX) + return -EINVAL; + + hm = kmalloc(sizeof(*hm), GFP_KERNEL); + hr = kmalloc(sizeof(*hr), GFP_KERNEL); + if (!hm || !hr) { + err = -ENOMEM; + goto out; + } + + phpi_ioctl_data = (struct hpi_ioctl_linux __user *)arg; + + /* Read the message and response pointers from user space. */ + get_user(puhm, &phpi_ioctl_data->phm); + get_user(puhr, &phpi_ioctl_data->phr); + + /* Now read the message size and data from user space. */ + get_user(hm->h.size, (u16 __user *)puhm); + if (hm->h.size > sizeof(*hm)) + hm->h.size = sizeof(*hm); + + /*printk(KERN_INFO "message size %d\n", hm->h.wSize); */ + + uncopied_bytes = copy_from_user(hm, puhm, hm->h.size); + if (uncopied_bytes) { + HPI_DEBUG_LOG(ERROR, "uncopied bytes %d\n", uncopied_bytes); + err = -EFAULT; + goto out; + } + + get_user(res_max_size, (u16 __user *)puhr); + /* printk(KERN_INFO "user response size %d\n", res_max_size); */ + if (res_max_size < sizeof(struct hpi_response_header)) { + HPI_DEBUG_LOG(WARNING, "small res size %d\n", res_max_size); + err = -EFAULT; + goto out; + } + + pa = &adapters[hm->h.adapter_index]; + hr->h.size = 0; + if (hm->h.object == HPI_OBJ_SUBSYSTEM) { + switch (hm->h.function) { + case HPI_SUBSYS_CREATE_ADAPTER: + case HPI_SUBSYS_DELETE_ADAPTER: + /* Application must not use these functions! */ + hr->h.size = sizeof(hr->h); + hr->h.error = HPI_ERROR_INVALID_OPERATION; + hr->h.function = hm->h.function; + uncopied_bytes = copy_to_user(puhr, hr, hr->h.size); + if (uncopied_bytes) + err = -EFAULT; + else + err = 0; + goto out; + + default: + hpi_send_recv_f(&hm->m0, &hr->r0, file); + } + } else { + u16 __user *ptr = NULL; + u32 size = 0; + + /* -1=no data 0=read from user mem, 1=write to user mem */ + int wrflag = -1; + u32 adapter = hm->h.adapter_index; + + if ((hm->h.adapter_index > HPI_MAX_ADAPTERS) || (!pa->type)) { + hpi_init_response(&hr->r0, HPI_OBJ_ADAPTER, + HPI_ADAPTER_OPEN, + HPI_ERROR_BAD_ADAPTER_NUMBER); + + uncopied_bytes = + copy_to_user(puhr, hr, sizeof(hr->h)); + if (uncopied_bytes) + err = -EFAULT; + else + err = 0; + goto out; + } + + if (mutex_lock_interruptible(&adapters[adapter].mutex)) { + err = -EINTR; + goto out; + } + + /* Dig out any pointers embedded in the message. */ + switch (hm->h.function) { + case HPI_OSTREAM_WRITE: + case HPI_ISTREAM_READ:{ + /* Yes, sparse, this is correct. */ + ptr = (u16 __user *)hm->m0.u.d.u.data.pb_data; + size = hm->m0.u.d.u.data.data_size; + + /* Allocate buffer according to application request. + ?Is it better to alloc/free for the duration + of the transaction? + */ + if (pa->buffer_size < size) { + HPI_DEBUG_LOG(DEBUG, + "realloc adapter %d stream " + "buffer from %zd to %d\n", + hm->h.adapter_index, + pa->buffer_size, size); + if (pa->p_buffer) { + pa->buffer_size = 0; + vfree(pa->p_buffer); + } + pa->p_buffer = vmalloc(size); + if (pa->p_buffer) + pa->buffer_size = size; + else { + HPI_DEBUG_LOG(ERROR, + "HPI could not allocate " + "stream buffer size %d\n", + size); + + mutex_unlock(&adapters + [adapter].mutex); + err = -EINVAL; + goto out; + } + } + + hm->m0.u.d.u.data.pb_data = pa->p_buffer; + if (hm->h.function == HPI_ISTREAM_READ) + /* from card, WRITE to user mem */ + wrflag = 1; + else + wrflag = 0; + break; + } + + default: + size = 0; + break; + } + + if (size && (wrflag == 0)) { + uncopied_bytes = + copy_from_user(pa->p_buffer, ptr, size); + if (uncopied_bytes) + HPI_DEBUG_LOG(WARNING, + "missed %d of %d " + "bytes from user\n", uncopied_bytes, + size); + } + + hpi_send_recv_f(&hm->m0, &hr->r0, file); + + if (size && (wrflag == 1)) { + uncopied_bytes = + copy_to_user(ptr, pa->p_buffer, size); + if (uncopied_bytes) + HPI_DEBUG_LOG(WARNING, + "missed %d of %d " "bytes to user\n", + uncopied_bytes, size); + } + + mutex_unlock(&adapters[adapter].mutex); + } + + /* on return response size must be set */ + /*printk(KERN_INFO "response size %d\n", hr->h.wSize); */ + + if (!hr->h.size) { + HPI_DEBUG_LOG(ERROR, "response zero size\n"); + err = -EFAULT; + goto out; + } + + if (hr->h.size > res_max_size) { + HPI_DEBUG_LOG(ERROR, "response too big %d %d\n", hr->h.size, + res_max_size); + /*HPI_DEBUG_MESSAGE(ERROR, hm); */ + err = -EFAULT; + goto out; + } + + uncopied_bytes = copy_to_user(puhr, hr, hr->h.size); + if (uncopied_bytes) { + HPI_DEBUG_LOG(ERROR, "uncopied bytes %d\n", uncopied_bytes); + err = -EFAULT; + goto out; + } + +out: + kfree(hm); + kfree(hr); + return err; +} + +int __devinit asihpi_adapter_probe(struct pci_dev *pci_dev, + const struct pci_device_id *pci_id) +{ + int err, idx, nm; + unsigned int memlen; + struct hpi_message hm; + struct hpi_response hr; + struct hpi_adapter adapter; + struct hpi_pci pci; + + memset(&adapter, 0, sizeof(adapter)); + + printk(KERN_DEBUG "probe PCI device (%04x:%04x,%04x:%04x,%04x)\n", + pci_dev->vendor, pci_dev->device, pci_dev->subsystem_vendor, + pci_dev->subsystem_device, pci_dev->devfn); + + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_CREATE_ADAPTER); + hpi_init_response(&hr, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_CREATE_ADAPTER, + HPI_ERROR_PROCESSING_MESSAGE); + + hm.adapter_index = -1; /* an invalid index */ + + /* fill in HPI_PCI information from kernel provided information */ + adapter.pci = pci_dev; + + nm = HPI_MAX_ADAPTER_MEM_SPACES; + + for (idx = 0; idx < nm; idx++) { + HPI_DEBUG_LOG(INFO, "resource %d %s %08llx-%08llx %04llx\n", + idx, pci_dev->resource[idx].name, + (unsigned long long)pci_resource_start(pci_dev, idx), + (unsigned long long)pci_resource_end(pci_dev, idx), + (unsigned long long)pci_resource_flags(pci_dev, idx)); + + if (pci_resource_flags(pci_dev, idx) & IORESOURCE_MEM) { + memlen = pci_resource_len(pci_dev, idx); + adapter.ap_remapped_mem_base[idx] = + ioremap(pci_resource_start(pci_dev, idx), + memlen); + if (!adapter.ap_remapped_mem_base[idx]) { + HPI_DEBUG_LOG(ERROR, + "ioremap failed, aborting\n"); + /* unmap previously mapped pci mem space */ + goto err; + } + } + + pci.ap_mem_base[idx] = adapter.ap_remapped_mem_base[idx]; + } + + /* could replace Pci with direct pointer to pci_dev for linux + Instead wrap accessor functions for IDs etc. + Would it work for windows? + */ + pci.bus_number = pci_dev->bus->number; + pci.vendor_id = (u16)pci_dev->vendor; + pci.device_id = (u16)pci_dev->device; + pci.subsys_vendor_id = (u16)(pci_dev->subsystem_vendor & 0xffff); + pci.subsys_device_id = (u16)(pci_dev->subsystem_device & 0xffff); + pci.device_number = pci_dev->devfn; + pci.interrupt = pci_dev->irq; + pci.p_os_data = pci_dev; + + hm.u.s.resource.bus_type = HPI_BUS_PCI; + hm.u.s.resource.r.pci = &pci; + + /* call CreateAdapterObject on the relevant hpi module */ + hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); + if (hr.error) + goto err; + + if (prealloc_stream_buf) { + adapter.p_buffer = vmalloc(prealloc_stream_buf); + if (!adapter.p_buffer) { + HPI_DEBUG_LOG(ERROR, + "HPI could not allocate " + "kernel buffer size %d\n", + prealloc_stream_buf); + goto err; + } + } + + adapter.index = hr.u.s.adapter_index; + adapter.type = hr.u.s.aw_adapter_list[adapter.index]; + hm.adapter_index = adapter.index; + + err = hpi_adapter_open(NULL, adapter.index); + if (err) + goto err; + + adapter.snd_card_asihpi = NULL; + /* WARNING can't init mutex in 'adapter' + * and then copy it to adapters[] ?!?! + */ + adapters[hr.u.s.adapter_index] = adapter; + mutex_init(&adapters[adapter.index].mutex); + pci_set_drvdata(pci_dev, &adapters[adapter.index]); + + printk(KERN_INFO "probe found adapter ASI%04X HPI index #%d.\n", + adapter.type, adapter.index); + + return 0; + +err: + for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) { + if (adapter.ap_remapped_mem_base[idx]) { + iounmap(adapter.ap_remapped_mem_base[idx]); + adapter.ap_remapped_mem_base[idx] = NULL; + } + } + + if (adapter.p_buffer) { + adapter.buffer_size = 0; + vfree(adapter.p_buffer); + } + + HPI_DEBUG_LOG(ERROR, "adapter_probe failed\n"); + return -ENODEV; +} + +void __devexit asihpi_adapter_remove(struct pci_dev *pci_dev) +{ + int idx; + struct hpi_message hm; + struct hpi_response hr; + struct hpi_adapter *pa; + pa = (struct hpi_adapter *)pci_get_drvdata(pci_dev); + + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_DELETE_ADAPTER); + hm.adapter_index = pa->index; + hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); + + /* unmap PCI memory space, mapped during device init. */ + for (idx = 0; idx < HPI_MAX_ADAPTER_MEM_SPACES; idx++) { + if (pa->ap_remapped_mem_base[idx]) { + iounmap(pa->ap_remapped_mem_base[idx]); + pa->ap_remapped_mem_base[idx] = NULL; + } + } + + if (pa->p_buffer) { + pa->buffer_size = 0; + vfree(pa->p_buffer); + } + + pci_set_drvdata(pci_dev, NULL); + /* + printk(KERN_INFO "PCI device (%04x:%04x,%04x:%04x,%04x)," + " HPI index # %d, removed.\n", + pci_dev->vendor, pci_dev->device, + pci_dev->subsystem_vendor, + pci_dev->subsystem_device, pci_dev->devfn, + pa->index); + */ +} + +void __init asihpi_init(void) +{ + struct hpi_message hm; + struct hpi_response hr; + + memset(adapters, 0, sizeof(adapters)); + + printk(KERN_INFO "ASIHPI driver %d.%02d.%02d\n", + HPI_VER_MAJOR(HPI_VER), HPI_VER_MINOR(HPI_VER), + HPI_VER_RELEASE(HPI_VER)); + + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_DRIVER_LOAD); + hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); +} + +void asihpi_exit(void) +{ + struct hpi_message hm; + struct hpi_response hr; + + hpi_init_message_response(&hm, &hr, HPI_OBJ_SUBSYSTEM, + HPI_SUBSYS_DRIVER_UNLOAD); + hpi_send_recv_ex(&hm, &hr, HOWNER_KERNEL); +} diff --git a/sound/pci/asihpi/hpioctl.h b/sound/pci/asihpi/hpioctl.h new file mode 100644 index 00000000000..847f72f03fe --- /dev/null +++ b/sound/pci/asihpi/hpioctl.h @@ -0,0 +1,38 @@ +/******************************************************************************* + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +Linux HPI ioctl, and shared module init functions +*******************************************************************************/ + +int __devinit asihpi_adapter_probe(struct pci_dev *pci_dev, + const struct pci_device_id *pci_id); +void __devexit asihpi_adapter_remove(struct pci_dev *pci_dev); +void __init asihpi_init(void); +void __exit asihpi_exit(void); + +int asihpi_hpi_release(struct file *file); + +long asihpi_hpi_ioctl(struct file *file, unsigned int cmd, unsigned long arg); + +/* This is called from hpifunc.c functions, called by ALSA + * (or other kernel process) In this case there is no file descriptor + * available for the message cache code + */ +void hpi_send_recv(struct hpi_message *phm, struct hpi_response *phr); + +#define HOWNER_KERNEL ((void *)-1) diff --git a/sound/pci/asihpi/hpios.c b/sound/pci/asihpi/hpios.c new file mode 100644 index 00000000000..de615cfdb95 --- /dev/null +++ b/sound/pci/asihpi/hpios.c @@ -0,0 +1,114 @@ +/****************************************************************************** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +HPI Operating System function implementation for Linux + +(C) Copyright AudioScience Inc. 1997-2003 +******************************************************************************/ +#define SOURCEFILE_NAME "hpios.c" +#include "hpi_internal.h" +#include "hpidebug.h" +#include +#include + +void hpios_delay_micro_seconds(u32 num_micro_sec) +{ + if ((usecs_to_jiffies(num_micro_sec) > 1) && !in_interrupt()) { + /* MUST NOT SCHEDULE IN INTERRUPT CONTEXT! */ + schedule_timeout_uninterruptible(usecs_to_jiffies + (num_micro_sec)); + } else if (num_micro_sec <= 2000) + udelay(num_micro_sec); + else + mdelay(num_micro_sec / 1000); + +} + +void hpios_locked_mem_init(void) +{ +} + +/** Allocated an area of locked memory for bus master DMA operations. + +On error, return -ENOMEM, and *pMemArea.size = 0 +*/ +u16 hpios_locked_mem_alloc(struct consistent_dma_area *p_mem_area, u32 size, + struct pci_dev *pdev) +{ + /*?? any benefit in using managed dmam_alloc_coherent? */ + p_mem_area->vaddr = + dma_alloc_coherent(&pdev->dev, size, &p_mem_area->dma_handle, + GFP_DMA32 | GFP_KERNEL); + + if (p_mem_area->vaddr) { + HPI_DEBUG_LOG(DEBUG, "allocated %d bytes, dma 0x%x vma %p\n", + size, (unsigned int)p_mem_area->dma_handle, + p_mem_area->vaddr); + p_mem_area->pdev = &pdev->dev; + p_mem_area->size = size; + return 0; + } else { + HPI_DEBUG_LOG(WARNING, + "failed to allocate %d bytes locked memory\n", size); + p_mem_area->size = 0; + return -ENOMEM; + } +} + +u16 hpios_locked_mem_free(struct consistent_dma_area *p_mem_area) +{ + if (p_mem_area->size) { + dma_free_coherent(p_mem_area->pdev, p_mem_area->size, + p_mem_area->vaddr, p_mem_area->dma_handle); + HPI_DEBUG_LOG(DEBUG, "freed %lu bytes, dma 0x%x vma %p\n", + (unsigned long)p_mem_area->size, + (unsigned int)p_mem_area->dma_handle, + p_mem_area->vaddr); + p_mem_area->size = 0; + return 0; + } else { + return 1; + } +} + +void hpios_locked_mem_free_all(void) +{ +} + +void __iomem *hpios_map_io(struct pci_dev *pci_dev, int idx, + unsigned int length) +{ + HPI_DEBUG_LOG(DEBUG, "mapping %d %s %08llx-%08llx %04llx len 0x%x\n", + idx, pci_dev->resource[idx].name, + (unsigned long long)pci_resource_start(pci_dev, idx), + (unsigned long long)pci_resource_end(pci_dev, idx), + (unsigned long long)pci_resource_flags(pci_dev, idx), length); + + if (!(pci_resource_flags(pci_dev, idx) & IORESOURCE_MEM)) { + HPI_DEBUG_LOG(ERROR, "not an io memory resource\n"); + return NULL; + } + + if (length > pci_resource_len(pci_dev, idx)) { + HPI_DEBUG_LOG(ERROR, "resource too small for requested %d \n", + length); + return NULL; + } + + return ioremap(pci_resource_start(pci_dev, idx), length); +} diff --git a/sound/pci/asihpi/hpios.h b/sound/pci/asihpi/hpios.h new file mode 100644 index 00000000000..a62c3f1e5f0 --- /dev/null +++ b/sound/pci/asihpi/hpios.h @@ -0,0 +1,178 @@ +/****************************************************************************** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + +HPI Operating System Specific macros for Linux Kernel driver + +(C) Copyright AudioScience Inc. 1997-2003 +******************************************************************************/ +#ifndef _HPIOS_H_ +#define _HPIOS_H_ + +#undef HPI_OS_LINUX_KERNEL +#define HPI_OS_LINUX_KERNEL + +#define HPI_OS_DEFINED +#define HPI_KERNEL_MODE + +#define HPI_REASSIGN_DUPLICATE_ADAPTER_IDX + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define HPI_NO_OS_FILE_OPS + +#ifdef CONFIG_64BIT +#define HPI64BIT +#endif + +/** Details of a memory area allocated with pci_alloc_consistent +Need all info for parameters to pci_free_consistent +*/ +struct consistent_dma_area { + struct device *pdev; + /* looks like dma-mapping dma_devres ?! */ + size_t size; + void *vaddr; + dma_addr_t dma_handle; +}; + +static inline u16 hpios_locked_mem_get_phys_addr(struct consistent_dma_area + *locked_mem_handle, u32 *p_physical_addr) +{ + *p_physical_addr = locked_mem_handle->dma_handle; + return 0; +} + +static inline u16 hpios_locked_mem_get_virt_addr(struct consistent_dma_area + *locked_mem_handle, void **pp_virtual_addr) +{ + *pp_virtual_addr = locked_mem_handle->vaddr; + return 0; +} + +static inline u16 hpios_locked_mem_valid(struct consistent_dma_area + *locked_mem_handle) +{ + return locked_mem_handle->size != 0; +} + +struct hpi_ioctl_linux { + void __user *phm; + void __user *phr; +}; + +/* Conflict?: H is already used by a number of drivers hid, bluetooth hci, + and some sound drivers sb16, hdsp, emu10k. AFAIK 0xFC is ununsed command +*/ +#define HPI_IOCTL_LINUX _IOWR('H', 0xFC, struct hpi_ioctl_linux) + +#define HPI_DEBUG_FLAG_ERROR KERN_ERR +#define HPI_DEBUG_FLAG_WARNING KERN_WARNING +#define HPI_DEBUG_FLAG_NOTICE KERN_NOTICE +#define HPI_DEBUG_FLAG_INFO KERN_INFO +#define HPI_DEBUG_FLAG_DEBUG KERN_DEBUG +#define HPI_DEBUG_FLAG_VERBOSE KERN_DEBUG /* kernel has no verbose */ + +#include + +#define HPI_LOCKING + +struct hpios_spinlock { + spinlock_t lock; /* SEE hpios_spinlock */ + int lock_context; +}; + +/* The reason for all this evilness is that ALSA calls some of a drivers + * operators in atomic context, and some not. But all our functions channel + * through the HPI_Message conduit, so we can't handle the different context + * per function + */ +#define IN_LOCK_BH 1 +#define IN_LOCK_IRQ 0 +static inline void cond_lock(struct hpios_spinlock *l) +{ + if (irqs_disabled()) { + /* NO bh or isr can execute on this processor, + so ordinary lock will do + */ + spin_lock(&((l)->lock)); + l->lock_context = IN_LOCK_IRQ; + } else { + spin_lock_bh(&((l)->lock)); + l->lock_context = IN_LOCK_BH; + } +} + +static inline void cond_unlock(struct hpios_spinlock *l) +{ + if (l->lock_context == IN_LOCK_BH) + spin_unlock_bh(&((l)->lock)); + else + spin_unlock(&((l)->lock)); +} + +#define hpios_msgxlock_init(obj) spin_lock_init(&(obj)->lock) +#define hpios_msgxlock_lock(obj) cond_lock(obj) +#define hpios_msgxlock_un_lock(obj) cond_unlock(obj) + +#define hpios_dsplock_init(obj) spin_lock_init(&(obj)->dsp_lock.lock) +#define hpios_dsplock_lock(obj) cond_lock(&(obj)->dsp_lock) +#define hpios_dsplock_unlock(obj) cond_unlock(&(obj)->dsp_lock) + +#ifdef CONFIG_SND_DEBUG +#define HPI_DEBUG +#endif + +#define HPI_ALIST_LOCKING +#define hpios_alistlock_init(obj) spin_lock_init(&((obj)->list_lock.lock)) +#define hpios_alistlock_lock(obj) spin_lock(&((obj)->list_lock.lock)) +#define hpios_alistlock_un_lock(obj) spin_unlock(&((obj)->list_lock.lock)) + +struct hpi_adapter { + /* mutex prevents contention for one card + between multiple user programs (via ioctl) */ + struct mutex mutex; + u16 index; + u16 type; + + /* ALSA card structure */ + void *snd_card_asihpi; + + char *p_buffer; + size_t buffer_size; + struct pci_dev *pci; + void __iomem *ap_remapped_mem_base[HPI_MAX_ADAPTER_MEM_SPACES]; +}; + +static inline void hpios_unmap_io(void __iomem *addr, + unsigned long size) +{ + iounmap(addr); +} + +void __iomem *hpios_map_io(struct pci_dev *pci_dev, int idx, + unsigned int length); + +#endif diff --git a/sound/pci/asihpi/hpipcida.h b/sound/pci/asihpi/hpipcida.h new file mode 100644 index 00000000000..bb30868ce1a --- /dev/null +++ b/sound/pci/asihpi/hpipcida.h @@ -0,0 +1,37 @@ +/****************************************************************************** + + AudioScience HPI driver + Copyright (C) 1997-2010 AudioScience Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of version 2 of the GNU General Public License as + published by the Free Software Foundation; + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + Array initializer for PCI card IDs + +(C) Copyright AudioScience Inc. 1998-2003 +*******************************************************************************/ + +/*NOTE: when adding new lines to this header file + they MUST be grouped by HPI entry point. +*/ + +{ +HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_DSP6205, + HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0, + (kernel_ulong_t) HPI_6205} +, { +HPI_PCI_VENDOR_ID_TI, HPI_PCI_DEV_ID_PCI2040, + HPI_PCI_VENDOR_ID_AUDIOSCIENCE, PCI_ANY_ID, 0, 0, + (kernel_ulong_t) HPI_6000} +, { +0} -- cgit v1.2.3-70-g09d2 From e904f0a4163bc7bd303d2430893d82362df6727e Mon Sep 17 00:00:00 2001 From: andrew hendry Date: Mon, 19 Apr 2010 13:30:36 +0000 Subject: X25: Update X25 interface documentation Signed-off-by: Andrew Hendry Signed-off-by: David S. Miller --- Documentation/networking/x25-iface.txt | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/x25-iface.txt b/Documentation/networking/x25-iface.txt index 975cc87ebdd..78f662ee062 100644 --- a/Documentation/networking/x25-iface.txt +++ b/Documentation/networking/x25-iface.txt @@ -20,23 +20,23 @@ the rest of the skbuff, if any more information does exist. Packet Layer to Device Driver ----------------------------- -First Byte = 0x00 +First Byte = 0x00 (X25_IFACE_DATA) This indicates that the rest of the skbuff contains data to be transmitted over the LAPB link. The LAPB link should already exist before any data is passed down. -First Byte = 0x01 +First Byte = 0x01 (X25_IFACE_CONNECT) Establish the LAPB link. If the link is already established then the connect confirmation message should be returned as soon as possible. -First Byte = 0x02 +First Byte = 0x02 (X25_IFACE_DISCONNECT) Terminate the LAPB link. If it is already disconnected then the disconnect confirmation message should be returned as soon as possible. -First Byte = 0x03 +First Byte = 0x03 (X25_IFACE_PARAMS) LAPB parameters. To be defined. @@ -44,22 +44,22 @@ LAPB parameters. To be defined. Device Driver to Packet Layer ----------------------------- -First Byte = 0x00 +First Byte = 0x00 (X25_IFACE_DATA) This indicates that the rest of the skbuff contains data that has been received over the LAPB link. -First Byte = 0x01 +First Byte = 0x01 (X25_IFACE_CONNECT) LAPB link has been established. The same message is used for both a LAPB link connect_confirmation and a connect_indication. -First Byte = 0x02 +First Byte = 0x02 (X25_IFACE_DISCONNECT) LAPB link has been terminated. This same message is used for both a LAPB link disconnect_confirmation and a disconnect_indication. -First Byte = 0x03 +First Byte = 0x03 (X25_IFACE_PARAMS) LAPB parameters. To be defined. -- cgit v1.2.3-70-g09d2 From a33f32244d8550da8b4a26e277ce07d5c6d158b5 Mon Sep 17 00:00:00 2001 From: Francis Galiegue Date: Fri, 23 Apr 2010 00:08:02 +0200 Subject: Documentation/: it's -> its where appropriate Fix obvious cases of "it's" being used when "its" was meant. Signed-off-by: Francis Galiegue Acked-by: Randy Dunlap Signed-off-by: Jiri Kosina --- Documentation/ABI/testing/sysfs-devices-memory | 2 +- Documentation/DMA-API-HOWTO.txt | 2 +- Documentation/DocBook/libata.tmpl | 2 +- Documentation/PCI/pci-error-recovery.txt | 4 ++-- Documentation/Smack.txt | 2 +- Documentation/arm/SA1100/ADSBitsy | 2 +- Documentation/arm/Sharp-LH/ADC-LH7-Touchscreen | 2 +- Documentation/atomic_ops.txt | 2 +- Documentation/blackfin/bfin-gpio-notes.txt | 2 +- Documentation/cachetlb.txt | 6 +++--- Documentation/cgroups/memcg_test.txt | 2 +- Documentation/cgroups/memory.txt | 2 +- Documentation/connector/connector.txt | 2 +- Documentation/dvb/ci.txt | 2 +- Documentation/dvb/contributors.txt | 2 +- Documentation/filesystems/autofs4-mount-control.txt | 2 +- Documentation/filesystems/ceph.txt | 2 +- Documentation/filesystems/dlmfs.txt | 2 +- Documentation/filesystems/fiemap.txt | 12 ++++++------ Documentation/filesystems/fuse.txt | 4 ++-- Documentation/filesystems/hpfs.txt | 2 +- Documentation/filesystems/nfs/rpc-cache.txt | 2 +- Documentation/filesystems/proc.txt | 4 ++-- Documentation/filesystems/smbfs.txt | 2 +- Documentation/filesystems/vfs.txt | 2 +- Documentation/hwmon/lm85 | 2 +- Documentation/input/joystick.txt | 2 +- Documentation/intel_txt.txt | 2 +- Documentation/kbuild/kconfig-language.txt | 2 +- Documentation/kernel-docs.txt | 10 +++++----- Documentation/kprobes.txt | 2 +- Documentation/laptops/laptop-mode.txt | 2 +- Documentation/lguest/lguest.c | 2 +- Documentation/md.txt | 2 +- Documentation/netlabel/lsm_interface.txt | 2 +- Documentation/networking/ifenslave.c | 2 +- Documentation/networking/packet_mmap.txt | 4 ++-- Documentation/power/regulator/consumer.txt | 10 +++++----- Documentation/power/regulator/machine.txt | 2 +- Documentation/power/regulator/overview.txt | 6 +++--- Documentation/powerpc/booting-without-of.txt | 2 +- Documentation/powerpc/phyp-assisted-dump.txt | 2 +- Documentation/rt-mutex-design.txt | 2 +- Documentation/scsi/ChangeLog.lpfc | 4 ++-- Documentation/scsi/FlashPoint.txt | 2 +- Documentation/scsi/dtc3x80.txt | 2 +- Documentation/scsi/ncr53c8xx.txt | 2 +- Documentation/scsi/osst.txt | 2 +- Documentation/scsi/scsi_fc_transport.txt | 4 ++-- Documentation/scsi/sym53c8xx_2.txt | 2 +- Documentation/sound/alsa/soc/dapm.txt | 4 ++-- Documentation/sound/alsa/soc/machine.txt | 2 +- Documentation/sound/alsa/soc/overview.txt | 2 +- Documentation/usb/WUSB-Design-overview.txt | 2 +- Documentation/vm/numa_memory_policy.txt | 4 ++-- Documentation/w1/w1.generic | 2 +- 56 files changed, 81 insertions(+), 81 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-devices-memory b/Documentation/ABI/testing/sysfs-devices-memory index bf1627b02a0..aba7d989208 100644 --- a/Documentation/ABI/testing/sysfs-devices-memory +++ b/Documentation/ABI/testing/sysfs-devices-memory @@ -43,7 +43,7 @@ Date: September 2008 Contact: Badari Pulavarty Description: The file /sys/devices/system/memory/memoryX/state - is read-write. When read, it's contents show the + is read-write. When read, its contents show the online/offline state of the memory section. When written, root can toggle the the online/offline state of a removable memory section (see removable file description above) diff --git a/Documentation/DMA-API-HOWTO.txt b/Documentation/DMA-API-HOWTO.txt index 52618ab069a..2e435adfbd6 100644 --- a/Documentation/DMA-API-HOWTO.txt +++ b/Documentation/DMA-API-HOWTO.txt @@ -742,7 +742,7 @@ failure can be determined by: Closing -This document, and the API itself, would not be in it's current +This document, and the API itself, would not be in its current form without the feedback and suggestions from numerous individuals. We would like to specifically mention, in no particular order, the following people: diff --git a/Documentation/DocBook/libata.tmpl b/Documentation/DocBook/libata.tmpl index ba997577150..261b57bc6f0 100644 --- a/Documentation/DocBook/libata.tmpl +++ b/Documentation/DocBook/libata.tmpl @@ -490,7 +490,7 @@ void (*host_stop) (struct ata_host_set *host_set); allocates space for a legacy IDE PRD table and returns. - ->port_stop() is called after ->host_stop(). It's sole function + ->port_stop() is called after ->host_stop(). Its sole function is to release DMA/memory resources, now that they are no longer actively being used. Many drivers also free driver-private data from port at this time. diff --git a/Documentation/PCI/pci-error-recovery.txt b/Documentation/PCI/pci-error-recovery.txt index e83f2ea7641..898ded24510 100644 --- a/Documentation/PCI/pci-error-recovery.txt +++ b/Documentation/PCI/pci-error-recovery.txt @@ -216,7 +216,7 @@ The driver should return one of the following result codes: - PCI_ERS_RESULT_NEED_RESET Driver returns this if it thinks the device is not - recoverable in it's current state and it needs a slot + recoverable in its current state and it needs a slot reset to proceed. - PCI_ERS_RESULT_DISCONNECT @@ -241,7 +241,7 @@ in working condition. The driver is not supposed to restart normal driver I/O operations at this point. It should limit itself to "probing" the device to -check it's recoverability status. If all is right, then the platform +check its recoverability status. If all is right, then the platform will call resume() once all drivers have ack'd link_reset(). Result codes: diff --git a/Documentation/Smack.txt b/Documentation/Smack.txt index 34614b4c708..e9dab41c0fe 100644 --- a/Documentation/Smack.txt +++ b/Documentation/Smack.txt @@ -73,7 +73,7 @@ NOTE: Smack labels are limited to 23 characters. The attr command If you don't do anything special all users will get the floor ("_") label when they log in. If you do want to log in via the hacked ssh at other labels use the attr command to set the smack value on the -home directory and it's contents. +home directory and its contents. You can add access rules in /etc/smack/accesses. They take the form: diff --git a/Documentation/arm/SA1100/ADSBitsy b/Documentation/arm/SA1100/ADSBitsy index 7197a9e958e..f9f62e8c071 100644 --- a/Documentation/arm/SA1100/ADSBitsy +++ b/Documentation/arm/SA1100/ADSBitsy @@ -32,7 +32,7 @@ Notes: - The flash on board is divided into 3 partitions. You should be careful to use flash on board. - It's partition is different from GraphicsClient Plus and GraphicsMaster + Its partition is different from GraphicsClient Plus and GraphicsMaster - 16bpp mode requires a different cable than what ships with the board. Contact ADS or look through the manual to wire your own. Currently, diff --git a/Documentation/arm/Sharp-LH/ADC-LH7-Touchscreen b/Documentation/arm/Sharp-LH/ADC-LH7-Touchscreen index 1e6a23fdf2f..dc460f05564 100644 --- a/Documentation/arm/Sharp-LH/ADC-LH7-Touchscreen +++ b/Documentation/arm/Sharp-LH/ADC-LH7-Touchscreen @@ -7,7 +7,7 @@ The driver only implements a four-wire touch panel protocol. The touchscreen driver is maintenance free except for the pen-down or touch threshold. Some resistive displays and board combinations may -require tuning of this threshold. The driver exposes some of it's +require tuning of this threshold. The driver exposes some of its internal state in the sys filesystem. If the kernel is configured with it, CONFIG_SYSFS, and sysfs is mounted at /sys, there will be a directory diff --git a/Documentation/atomic_ops.txt b/Documentation/atomic_ops.txt index 396bec3b74e..ac4d4718712 100644 --- a/Documentation/atomic_ops.txt +++ b/Documentation/atomic_ops.txt @@ -320,7 +320,7 @@ counter decrement would not become globally visible until the obj->active update does. As a historical note, 32-bit Sparc used to only allow usage of -24-bits of it's atomic_t type. This was because it used 8 bits +24-bits of its atomic_t type. This was because it used 8 bits as a spinlock for SMP safety. Sparc32 lacked a "compare and swap" type instruction. However, 32-bit Sparc has since been moved over to a "hash table of spinlocks" scheme, that allows the full 32-bit diff --git a/Documentation/blackfin/bfin-gpio-notes.txt b/Documentation/blackfin/bfin-gpio-notes.txt index 9898c7ded7d..f731c1e5647 100644 --- a/Documentation/blackfin/bfin-gpio-notes.txt +++ b/Documentation/blackfin/bfin-gpio-notes.txt @@ -43,7 +43,7 @@ void bfin_gpio_irq_free(unsigned gpio); The request functions will record the function state for a certain pin, - the free functions will clear it's function state. + the free functions will clear its function state. Once a pin is requested, it can't be requested again before it is freed by previous caller, otherwise kernel will dump stacks, and the request function fail. diff --git a/Documentation/cachetlb.txt b/Documentation/cachetlb.txt index 2b5f823abd0..9164ae3b83b 100644 --- a/Documentation/cachetlb.txt +++ b/Documentation/cachetlb.txt @@ -5,7 +5,7 @@ This document describes the cache/tlb flushing interfaces called by the Linux VM subsystem. It enumerates over each interface, -describes it's intended purpose, and what side effect is expected +describes its intended purpose, and what side effect is expected after the interface is invoked. The side effects described below are stated for a uniprocessor @@ -231,7 +231,7 @@ require a whole different set of interfaces to handle properly. The biggest problem is that of virtual aliasing in the data cache of a processor. -Is your port susceptible to virtual aliasing in it's D-cache? +Is your port susceptible to virtual aliasing in its D-cache? Well, if your D-cache is virtually indexed, is larger in size than PAGE_SIZE, and does not prevent multiple cache lines for the same physical address from existing at once, you have this problem. @@ -249,7 +249,7 @@ one way to solve this (in particular SPARC_FLAG_MMAPSHARED). Next, you have to solve the D-cache aliasing issue for all other cases. Please keep in mind that fact that, for a given page mapped into some user address space, there is always at least one more -mapping, that of the kernel in it's linear mapping starting at +mapping, that of the kernel in its linear mapping starting at PAGE_OFFSET. So immediately, once the first user maps a given physical page into its address space, by implication the D-cache aliasing problem has the potential to exist since the kernel already diff --git a/Documentation/cgroups/memcg_test.txt b/Documentation/cgroups/memcg_test.txt index f7f68b2ac19..b7eececfb19 100644 --- a/Documentation/cgroups/memcg_test.txt +++ b/Documentation/cgroups/memcg_test.txt @@ -244,7 +244,7 @@ Under below explanation, we assume CONFIG_MEM_RES_CTRL_SWAP=y. we have to check if OLDPAGE/NEWPAGE is a valid page after commit(). 8. LRU - Each memcg has its own private LRU. Now, it's handling is under global + Each memcg has its own private LRU. Now, its handling is under global VM's control (means that it's handled under global zone->lru_lock). Almost all routines around memcg's LRU is called by global LRU's list management functions under zone->lru_lock(). diff --git a/Documentation/cgroups/memory.txt b/Documentation/cgroups/memory.txt index 3a6aecd078b..6cab1f29da4 100644 --- a/Documentation/cgroups/memory.txt +++ b/Documentation/cgroups/memory.txt @@ -263,7 +263,7 @@ some of the pages cached in the cgroup (page cache pages). 4.2 Task migration -When a task migrates from one cgroup to another, it's charge is not +When a task migrates from one cgroup to another, its charge is not carried forward by default. The pages allocated from the original cgroup still remain charged to it, the charge is dropped when the page is freed or reclaimed. diff --git a/Documentation/connector/connector.txt b/Documentation/connector/connector.txt index 78c9466a9aa..e5c5f5e6ab7 100644 --- a/Documentation/connector/connector.txt +++ b/Documentation/connector/connector.txt @@ -88,7 +88,7 @@ int cn_netlink_send(struct cn_msg *msg, u32 __groups, int gfp_mask); int gfp_mask - GFP mask. Note: When registering new callback user, connector core assigns - netlink group to the user which is equal to it's id.idx. + netlink group to the user which is equal to its id.idx. /*****************************************/ Protocol description. diff --git a/Documentation/dvb/ci.txt b/Documentation/dvb/ci.txt index 2ecd834585e..4a0c2b56e69 100644 --- a/Documentation/dvb/ci.txt +++ b/Documentation/dvb/ci.txt @@ -41,7 +41,7 @@ This application requires the following to function properly as of now. * Cards that fall in this category ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ -At present the cards that fall in this category are the Twinhan and it's +At present the cards that fall in this category are the Twinhan and its clones, these cards are available as VVMER, Tomato, Hercules, Orange and so on. diff --git a/Documentation/dvb/contributors.txt b/Documentation/dvb/contributors.txt index 4865addebe1..47c30098dab 100644 --- a/Documentation/dvb/contributors.txt +++ b/Documentation/dvb/contributors.txt @@ -1,7 +1,7 @@ Thanks go to the following people for patches and contributions: Michael Hunold - for the initial saa7146 driver and it's recent overhaul + for the initial saa7146 driver and its recent overhaul Christian Theiss for his work on the initial Linux DVB driver diff --git a/Documentation/filesystems/autofs4-mount-control.txt b/Documentation/filesystems/autofs4-mount-control.txt index 8f78ded4b64..51986bf08a4 100644 --- a/Documentation/filesystems/autofs4-mount-control.txt +++ b/Documentation/filesystems/autofs4-mount-control.txt @@ -146,7 +146,7 @@ found to be inadequate, in this case. The Generic Netlink system was used for this as raw Netlink would lead to a significant increase in complexity. There's no question that the Generic Netlink system is an elegant solution for common case ioctl functions but it's not a complete -replacement probably because it's primary purpose in life is to be a +replacement probably because its primary purpose in life is to be a message bus implementation rather than specifically an ioctl replacement. While it would be possible to work around this there is one concern that lead to the decision to not use it. This is that the autofs diff --git a/Documentation/filesystems/ceph.txt b/Documentation/filesystems/ceph.txt index 0660c9f5dee..763d8ebbbeb 100644 --- a/Documentation/filesystems/ceph.txt +++ b/Documentation/filesystems/ceph.txt @@ -90,7 +90,7 @@ Mount Options Specify the IP and/or port the client should bind to locally. There is normally not much reason to do this. If the IP is not specified, the client's IP address is determined by looking at the - address it's connection to the monitor originates from. + address its connection to the monitor originates from. wsize=X Specify the maximum write size in bytes. By default there is no diff --git a/Documentation/filesystems/dlmfs.txt b/Documentation/filesystems/dlmfs.txt index c50bbb2d52b..1b528b2ad80 100644 --- a/Documentation/filesystems/dlmfs.txt +++ b/Documentation/filesystems/dlmfs.txt @@ -47,7 +47,7 @@ You'll want to start heartbeating on a volume which all the nodes in your lockspace can access. The easiest way to do this is via ocfs2_hb_ctl (distributed with ocfs2-tools). Right now it requires that an OCFS2 file system be in place so that it can automatically -find it's heartbeat area, though it will eventually support heartbeat +find its heartbeat area, though it will eventually support heartbeat against raw disks. Please see the ocfs2_hb_ctl and mkfs.ocfs2 manual pages distributed diff --git a/Documentation/filesystems/fiemap.txt b/Documentation/filesystems/fiemap.txt index 606233cd461..1b805a0efbb 100644 --- a/Documentation/filesystems/fiemap.txt +++ b/Documentation/filesystems/fiemap.txt @@ -38,7 +38,7 @@ flags, it will return EBADR and the contents of fm_flags will contain the set of flags which caused the error. If the kernel is compatible with all flags passed, the contents of fm_flags will be unmodified. It is up to userspace to determine whether rejection of a particular -flag is fatal to it's operation. This scheme is intended to allow the +flag is fatal to its operation. This scheme is intended to allow the fiemap interface to grow in the future but without losing compatibility with old software. @@ -56,7 +56,7 @@ If this flag is set, the kernel will sync the file before mapping extents. * FIEMAP_FLAG_XATTR If this flag is set, the extents returned will describe the inodes -extended attribute lookup tree, instead of it's data tree. +extended attribute lookup tree, instead of its data tree. Extent Mapping @@ -89,7 +89,7 @@ struct fiemap_extent { }; All offsets and lengths are in bytes and mirror those on disk. It is valid -for an extents logical offset to start before the request or it's logical +for an extents logical offset to start before the request or its logical length to extend past the request. Unless FIEMAP_EXTENT_NOT_ALIGNED is returned, fe_logical, fe_physical, and fe_length will be aligned to the block size of the file system. With the exception of extents flagged as @@ -125,7 +125,7 @@ been allocated for the file yet. * FIEMAP_EXTENT_DELALLOC - This will also set FIEMAP_EXTENT_UNKNOWN. -Delayed allocation - while there is data for this extent, it's +Delayed allocation - while there is data for this extent, its physical location has not been allocated yet. * FIEMAP_EXTENT_ENCODED @@ -159,7 +159,7 @@ Data is located within a meta data block. Data is packed into a block with data from other files. * FIEMAP_EXTENT_UNWRITTEN -Unwritten extent - the extent is allocated but it's data has not been +Unwritten extent - the extent is allocated but its data has not been initialized. This indicates the extent's data will be all zero if read through the filesystem but the contents are undefined if read directly from the device. @@ -176,7 +176,7 @@ VFS -> File System Implementation File systems wishing to support fiemap must implement a ->fiemap callback on their inode_operations structure. The fs ->fiemap call is responsible for -defining it's set of supported fiemap flags, and calling a helper function on +defining its set of supported fiemap flags, and calling a helper function on each discovered extent: struct inode_operations { diff --git a/Documentation/filesystems/fuse.txt b/Documentation/filesystems/fuse.txt index 397a41adb4c..13af4a49e7d 100644 --- a/Documentation/filesystems/fuse.txt +++ b/Documentation/filesystems/fuse.txt @@ -91,7 +91,7 @@ Mount options 'default_permissions' By default FUSE doesn't check file access permissions, the - filesystem is free to implement it's access policy or leave it to + filesystem is free to implement its access policy or leave it to the underlying file access mechanism (e.g. in case of network filesystems). This option enables permission checking, restricting access based on file mode. It is usually useful together with the @@ -171,7 +171,7 @@ or may honor them by sending a reply to the _original_ request, with the error set to EINTR. It is also possible that there's a race between processing the -original request and it's INTERRUPT request. There are two possibilities: +original request and its INTERRUPT request. There are two possibilities: 1) The INTERRUPT request is processed before the original request is processed diff --git a/Documentation/filesystems/hpfs.txt b/Documentation/filesystems/hpfs.txt index fa45c3baed9..74630bd504f 100644 --- a/Documentation/filesystems/hpfs.txt +++ b/Documentation/filesystems/hpfs.txt @@ -103,7 +103,7 @@ to analyze or change OS2SYS.INI. Codepages HPFS can contain several uppercasing tables for several codepages and each -file has a pointer to codepage it's name is in. However OS/2 was created in +file has a pointer to codepage its name is in. However OS/2 was created in America where people don't care much about codepages and so multiple codepages support is quite buggy. I have Czech OS/2 working in codepage 852 on my disk. Once I booted English OS/2 working in cp 850 and I created a file on my 852 diff --git a/Documentation/filesystems/nfs/rpc-cache.txt b/Documentation/filesystems/nfs/rpc-cache.txt index 8a382bea680..ebcaaee2161 100644 --- a/Documentation/filesystems/nfs/rpc-cache.txt +++ b/Documentation/filesystems/nfs/rpc-cache.txt @@ -185,7 +185,7 @@ failed lookup meant a definite 'no'. request/response format ----------------------- -While each cache is free to use it's own format for requests +While each cache is free to use its own format for requests and responses over channel, the following is recommended as appropriate and support routines are available to help: Each request or response record should be printable ASCII diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index 770700317c2..f6b1b5fca1d 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -965,7 +965,7 @@ your system and how much traffic was routed over those devices: ...] 1375103 17405 0 0 0 0 0 0 ...] 1703981 5535 0 0 0 3 0 0 -In addition, each Channel Bond interface has it's own directory. For +In addition, each Channel Bond interface has its own directory. For example, the bond0 device will have a directory called /proc/net/bond0/. It will contain information that is specific to that bond, such as the current slaves of the bond, the link status of the slaves, and how @@ -1362,7 +1362,7 @@ been accounted as having caused 1MB of write. In other words: The number of bytes which this process caused to not happen, by truncating pagecache. A task can cause "negative" IO too. If this task truncates some dirty pagecache, some IO which another task has been accounted -for (in it's write_bytes) will not be happening. We _could_ just subtract that +for (in its write_bytes) will not be happening. We _could_ just subtract that from the truncating task's write_bytes, but there is information loss in doing that. diff --git a/Documentation/filesystems/smbfs.txt b/Documentation/filesystems/smbfs.txt index f673ef0de0f..194fb0decd2 100644 --- a/Documentation/filesystems/smbfs.txt +++ b/Documentation/filesystems/smbfs.txt @@ -3,6 +3,6 @@ protocol used by Windows for Workgroups, Windows 95 and Windows NT. Smbfs was inspired by Samba, the program written by Andrew Tridgell that turns any Unix host into a file server for DOS or Windows clients. -Smbfs is a SMB client, but uses parts of samba for it's operation. For +Smbfs is a SMB client, but uses parts of samba for its operation. For more info on samba, including documentation, please go to http://www.samba.org/ and then on to your nearest mirror. diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index 3de2f32edd9..b66858538df 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -72,7 +72,7 @@ structure (this is the kernel-side implementation of file descriptors). The freshly allocated file structure is initialized with a pointer to the dentry and a set of file operation member functions. These are taken from the inode data. The open() file method is then -called so the specific filesystem implementation can do it's work. You +called so the specific filesystem implementation can do its work. You can see that this is another switch performed by the VFS. The file structure is placed into the file descriptor table for the process. diff --git a/Documentation/hwmon/lm85 b/Documentation/hwmon/lm85 index a13680871bc..a76aefeeb68 100644 --- a/Documentation/hwmon/lm85 +++ b/Documentation/hwmon/lm85 @@ -157,7 +157,7 @@ temperature configuration points: There are three PWM outputs. The LM85 datasheet suggests that the pwm3 output control both fan3 and fan4. Each PWM can be individually -configured and assigned to a zone for it's control value. Each PWM can be +configured and assigned to a zone for its control value. Each PWM can be configured individually according to the following options. * pwm#_auto_pwm_min - this specifies the PWM value for temp#_auto_temp_off diff --git a/Documentation/input/joystick.txt b/Documentation/input/joystick.txt index 154d767b2ac..8007b7ca87b 100644 --- a/Documentation/input/joystick.txt +++ b/Documentation/input/joystick.txt @@ -402,7 +402,7 @@ for the port of the SoundFusion is supported by the cs461x.c module. ~~~~~~~~~~~~~~~~~~~~~~~~ The Live! has a special PCI gameport, which, although it doesn't provide any "Enhanced" stuff like 4DWave and friends, is quite a bit faster than -it's ISA counterparts. It also requires special support, hence the +its ISA counterparts. It also requires special support, hence the emu10k1-gp.c module for it instead of the normal ns558.c one. 3.15 SoundBlaster 64 and 128 - ES1370 and ES1371, ESS Solo1 and S3 SonicVibes diff --git a/Documentation/intel_txt.txt b/Documentation/intel_txt.txt index f40a1f03001..1423bcc7c50 100644 --- a/Documentation/intel_txt.txt +++ b/Documentation/intel_txt.txt @@ -126,7 +126,7 @@ o Tboot then applies an (optional) user-defined launch policy to o Tboot adjusts the e820 table provided by the bootloader to reserve its own location in memory as well as to reserve certain other TXT-related regions. -o As part of it's launch, tboot DMA protects all of RAM (using the +o As part of its launch, tboot DMA protects all of RAM (using the VT-d PMRs). Thus, the kernel must be booted with 'intel_iommu=on' in order to remove this blanket protection and use VT-d's page-level protection. diff --git a/Documentation/kbuild/kconfig-language.txt b/Documentation/kbuild/kconfig-language.txt index c412c245848..b472e4e0ba6 100644 --- a/Documentation/kbuild/kconfig-language.txt +++ b/Documentation/kbuild/kconfig-language.txt @@ -181,7 +181,7 @@ Expressions are listed in decreasing order of precedence. (7) Returns the result of max(/expr/, /expr/). An expression can have a value of 'n', 'm' or 'y' (or 0, 1, 2 -respectively for calculations). A menu entry becomes visible when it's +respectively for calculations). A menu entry becomes visible when its expression evaluates to 'm' or 'y'. There are two types of symbols: constant and non-constant symbols. diff --git a/Documentation/kernel-docs.txt b/Documentation/kernel-docs.txt index 28cdc2af213..ec8d31ee12e 100644 --- a/Documentation/kernel-docs.txt +++ b/Documentation/kernel-docs.txt @@ -116,7 +116,7 @@ Author: Ingo Molnar, Gadi Oxman and Miguel de Icaza. URL: http://www.linuxjournal.com/article.php?sid=2391 Keywords: RAID, MD driver. - Description: Linux Journal Kernel Korner article. Here is it's + Description: Linux Journal Kernel Korner article. Here is its abstract: "A description of the implementation of the RAID-1, RAID-4 and RAID-5 personalities of the MD device driver in the Linux kernel, providing users with high performance and reliable, @@ -127,7 +127,7 @@ URL: http://www.linuxjournal.com/article.php?sid=1219 Keywords: device driver, module, loading/unloading modules, allocating resources. - Description: Linux Journal Kernel Korner article. Here is it's + Description: Linux Journal Kernel Korner article. Here is its abstract: "This is the first of a series of four articles co-authored by Alessandro Rubini and Georg Zezchwitz which present a practical approach to writing Linux device drivers as kernel @@ -141,7 +141,7 @@ Keywords: character driver, init_module, clean_up module, autodetection, mayor number, minor number, file operations, open(), close(). - Description: Linux Journal Kernel Korner article. Here is it's + Description: Linux Journal Kernel Korner article. Here is its abstract: "This article, the second of four, introduces part of the actual code to create custom module implementing a character device driver. It describes the code for module initialization and @@ -152,7 +152,7 @@ URL: http://www.linuxjournal.com/article.php?sid=1221 Keywords: read(), write(), select(), ioctl(), blocking/non blocking mode, interrupt handler. - Description: Linux Journal Kernel Korner article. Here is it's + Description: Linux Journal Kernel Korner article. Here is its abstract: "This article, the third of four on writing character device drivers, introduces concepts of reading, writing, and using ioctl-calls". @@ -161,7 +161,7 @@ Author: Alessandro Rubini and Georg v. Zezschwitz. URL: http://www.linuxjournal.com/article.php?sid=1222 Keywords: interrupts, irqs, DMA, bottom halves, task queues. - Description: Linux Journal Kernel Korner article. Here is it's + Description: Linux Journal Kernel Korner article. Here is its abstract: "This is the fourth in a series of articles about writing character device drivers as loadable kernel modules. This month, we further investigate the field of interrupt handling. diff --git a/Documentation/kprobes.txt b/Documentation/kprobes.txt index 2f9115c0ae6..51ec634ac04 100644 --- a/Documentation/kprobes.txt +++ b/Documentation/kprobes.txt @@ -332,7 +332,7 @@ occurs during execution of kp->pre_handler or kp->post_handler, or during single-stepping of the probed instruction, Kprobes calls kp->fault_handler. Any or all handlers can be NULL. If kp->flags is set KPROBE_FLAG_DISABLED, that kp will be registered but disabled, -so, it's handlers aren't hit until calling enable_kprobe(kp). +so, its handlers aren't hit until calling enable_kprobe(kp). NOTE: 1. With the introduction of the "symbol_name" field to struct kprobe, diff --git a/Documentation/laptops/laptop-mode.txt b/Documentation/laptops/laptop-mode.txt index 2c3c3509302..0bf25eebce9 100644 --- a/Documentation/laptops/laptop-mode.txt +++ b/Documentation/laptops/laptop-mode.txt @@ -207,7 +207,7 @@ Tips & Tricks * Drew Scott Daniels observed: "I don't know why, but when I decrease the number of colours that my display uses it consumes less battery power. I've seen this on powerbooks too. I hope that this is a piece of information that - might be useful to the Laptop Mode patch or it's users." + might be useful to the Laptop Mode patch or its users." * In syslog.conf, you can prefix entries with a dash ``-'' to omit syncing the file after every logging. When you're using laptop-mode and your disk doesn't diff --git a/Documentation/lguest/lguest.c b/Documentation/lguest/lguest.c index 3119f5db75b..e9ce3c55451 100644 --- a/Documentation/lguest/lguest.c +++ b/Documentation/lguest/lguest.c @@ -263,7 +263,7 @@ static u8 *get_feature_bits(struct device *dev) * Launcher virtual with an offset. * * This can be tough to get your head around, but usually it just means that we - * use these trivial conversion functions when the Guest gives us it's + * use these trivial conversion functions when the Guest gives us its * "physical" addresses: */ static void *from_guest_phys(unsigned long addr) diff --git a/Documentation/md.txt b/Documentation/md.txt index 188f4768f1d..e4e893ef3e0 100644 --- a/Documentation/md.txt +++ b/Documentation/md.txt @@ -136,7 +136,7 @@ raid_disks != 0. Then uninitialized devices can be added with ADD_NEW_DISK. The structure passed to ADD_NEW_DISK must specify the state of the device -and it's role in the array. +and its role in the array. Once started with RUN_ARRAY, uninitialized spares can be added with HOT_ADD_DISK. diff --git a/Documentation/netlabel/lsm_interface.txt b/Documentation/netlabel/lsm_interface.txt index 98dd9f7430f..638c74f7de7 100644 --- a/Documentation/netlabel/lsm_interface.txt +++ b/Documentation/netlabel/lsm_interface.txt @@ -38,7 +38,7 @@ Depending on the exact configuration, translation between the network packet label and the internal LSM security identifier can be time consuming. The NetLabel label mapping cache is a caching mechanism which can be used to sidestep much of this overhead once a mapping has been established. Once the -LSM has received a packet, used NetLabel to decode it's security attributes, +LSM has received a packet, used NetLabel to decode its security attributes, and translated the security attributes into a LSM internal identifier the LSM can use the NetLabel caching functions to associate the LSM internal identifier with the network packet's label. This means that in the future diff --git a/Documentation/networking/ifenslave.c b/Documentation/networking/ifenslave.c index 1b96ccda383..2bac9618c34 100644 --- a/Documentation/networking/ifenslave.c +++ b/Documentation/networking/ifenslave.c @@ -756,7 +756,7 @@ static int enslave(char *master_ifname, char *slave_ifname) */ if (abi_ver < 1) { /* For old ABI, the master needs to be - * down before setting it's hwaddr + * down before setting its hwaddr */ res = set_if_down(master_ifname, master_flags.ifr_flags); if (res) { diff --git a/Documentation/networking/packet_mmap.txt b/Documentation/networking/packet_mmap.txt index 09ab0d29032..98f71a5cef0 100644 --- a/Documentation/networking/packet_mmap.txt +++ b/Documentation/networking/packet_mmap.txt @@ -100,7 +100,7 @@ by the kernel. The destruction of the socket and all associated resources is done by a simple call to close(fd). -Next I will describe PACKET_MMAP settings and it's constraints, +Next I will describe PACKET_MMAP settings and its constraints, also the mapping of the circular buffer in the user process and the use of this buffer. @@ -432,7 +432,7 @@ TP_STATUS_LOSING : indicates there were packet drops from last time the PACKET_STATISTICS option. TP_STATUS_CSUMNOTREADY: currently it's used for outgoing IP packets which - it's checksum will be done in hardware. So while + its checksum will be done in hardware. So while reading the packet we should not try to check the checksum. diff --git a/Documentation/power/regulator/consumer.txt b/Documentation/power/regulator/consumer.txt index cdebb5145c2..55c4175d809 100644 --- a/Documentation/power/regulator/consumer.txt +++ b/Documentation/power/regulator/consumer.txt @@ -8,11 +8,11 @@ Please see overview.txt for a description of the terms used in this text. 1. Consumer Regulator Access (static & dynamic drivers) ======================================================= -A consumer driver can get access to it's supply regulator by calling :- +A consumer driver can get access to its supply regulator by calling :- regulator = regulator_get(dev, "Vcc"); -The consumer passes in it's struct device pointer and power supply ID. The core +The consumer passes in its struct device pointer and power supply ID. The core then finds the correct regulator by consulting a machine specific lookup table. If the lookup is successful then this call will return a pointer to the struct regulator that supplies this consumer. @@ -34,7 +34,7 @@ usually be called in your device drivers probe() and remove() respectively. 2. Regulator Output Enable & Disable (static & dynamic drivers) ==================================================================== -A consumer can enable it's power supply by calling:- +A consumer can enable its power supply by calling:- int regulator_enable(regulator); @@ -49,7 +49,7 @@ int regulator_is_enabled(regulator); This will return > zero when the regulator is enabled. -A consumer can disable it's supply when no longer needed by calling :- +A consumer can disable its supply when no longer needed by calling :- int regulator_disable(regulator); @@ -140,7 +140,7 @@ by calling :- int regulator_set_optimum_mode(struct regulator *regulator, int load_uA); This will cause the core to recalculate the total load on the regulator (based -on all it's consumers) and change operating mode (if necessary and permitted) +on all its consumers) and change operating mode (if necessary and permitted) to best match the current operating load. The load_uA value can be determined from the consumers datasheet. e.g.most diff --git a/Documentation/power/regulator/machine.txt b/Documentation/power/regulator/machine.txt index 63728fed620..bdec39b9bd7 100644 --- a/Documentation/power/regulator/machine.txt +++ b/Documentation/power/regulator/machine.txt @@ -52,7 +52,7 @@ static struct regulator_init_data regulator1_data = { }; Regulator-1 supplies power to Regulator-2. This relationship must be registered -with the core so that Regulator-1 is also enabled when Consumer A enables it's +with the core so that Regulator-1 is also enabled when Consumer A enables its supply (Regulator-2). The supply regulator is set by the supply_regulator_dev field below:- diff --git a/Documentation/power/regulator/overview.txt b/Documentation/power/regulator/overview.txt index ffd185bb605..9363e056188 100644 --- a/Documentation/power/regulator/overview.txt +++ b/Documentation/power/regulator/overview.txt @@ -35,16 +35,16 @@ Some terms used in this document:- o Consumer - Electronic device that is supplied power by a regulator. Consumers can be classified into two types:- - Static: consumer does not change it's supply voltage or + Static: consumer does not change its supply voltage or current limit. It only needs to enable or disable it's - power supply. It's supply voltage is set by the hardware, + power supply. Its supply voltage is set by the hardware, bootloader, firmware or kernel board initialisation code. Dynamic: consumer needs to change it's supply voltage or current limit to meet operation demands. - o Power Domain - Electronic circuit that is supplied it's input power by the + o Power Domain - Electronic circuit that is supplied its input power by the output power of a regulator, switch or by another power domain. diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt index 79f533f38c6..46d22105aa0 100644 --- a/Documentation/powerpc/booting-without-of.txt +++ b/Documentation/powerpc/booting-without-of.txt @@ -1289,7 +1289,7 @@ link between a device node and its interrupt parent in the interrupt tree. The value of interrupt-parent is the phandle of the parent node. -If the interrupt-parent property is not defined for a node, it's +If the interrupt-parent property is not defined for a node, its interrupt parent is assumed to be an ancestor in the node's _device tree_ hierarchy. diff --git a/Documentation/powerpc/phyp-assisted-dump.txt b/Documentation/powerpc/phyp-assisted-dump.txt index c4682b982a2..ad340205d96 100644 --- a/Documentation/powerpc/phyp-assisted-dump.txt +++ b/Documentation/powerpc/phyp-assisted-dump.txt @@ -19,7 +19,7 @@ dump offers several strong, practical advantages: immediately available to the system for normal use. -- After the dump is completed, no further reboots are required; the system will be fully usable, and running - in it's normal, production mode on it normal kernel. + in its normal, production mode on its normal kernel. The above can only be accomplished by coordination with, and assistance from the hypervisor. The procedure is diff --git a/Documentation/rt-mutex-design.txt b/Documentation/rt-mutex-design.txt index 4b736d24da7..8df0b782c4d 100644 --- a/Documentation/rt-mutex-design.txt +++ b/Documentation/rt-mutex-design.txt @@ -657,7 +657,7 @@ here. The waiter structure has a "task" field that points to the task that is blocked on the mutex. This field can be NULL the first time it goes through the loop -or if the task is a pending owner and had it's mutex stolen. If the "task" +or if the task is a pending owner and had its mutex stolen. If the "task" field is NULL then we need to set up the accounting for it. Task blocks on mutex diff --git a/Documentation/scsi/ChangeLog.lpfc b/Documentation/scsi/ChangeLog.lpfc index 2ffc1148eb9..e759e92e286 100644 --- a/Documentation/scsi/ChangeLog.lpfc +++ b/Documentation/scsi/ChangeLog.lpfc @@ -707,7 +707,7 @@ Changes from 20040920 to 20041018 * Integrate patches from Christoph Hellwig: two new helpers common to lpfc_sli_resume_iocb and lpfc_sli_issue_iocb - singificant cleanup of those two functions - the unused SLI_IOCB_USE_TXQ is - gone - lpfc_sli_issue_iocb_wait loses it's flags argument + gone - lpfc_sli_issue_iocb_wait loses its flags argument totally. * Fix in lpfc_sli.c: we can not store a 5 bit value in a 4-bit field. @@ -1028,7 +1028,7 @@ Changes from 20040614 to 20040709 * Remove the need for buf_tmo. * Changed ULP_BDE64 to struct ulp_bde64. * Changed ULP_BDE to struct ulp_bde. - * Cleanup lpfc_os_return_scsi_cmd() and it's call path. + * Cleanup lpfc_os_return_scsi_cmd() and its call path. * Removed lpfc_no_device_delay. * Consolidating lpfc_hba_put_event() into lpfc_put_event(). * Removed following attributes and their functionality: diff --git a/Documentation/scsi/FlashPoint.txt b/Documentation/scsi/FlashPoint.txt index d5acaa300a4..1540a92f6d2 100644 --- a/Documentation/scsi/FlashPoint.txt +++ b/Documentation/scsi/FlashPoint.txt @@ -71,7 +71,7 @@ peters@mylex.com Ever since its introduction last October, the BusLogic FlashPoint LT has been problematic for members of the Linux community, in that no Linux -drivers have been available for this new Ultra SCSI product. Despite it's +drivers have been available for this new Ultra SCSI product. Despite its officially being positioned as a desktop workstation product, and not being particularly well suited for a high performance multitasking operating system like Linux, the FlashPoint LT has been touted by computer system diff --git a/Documentation/scsi/dtc3x80.txt b/Documentation/scsi/dtc3x80.txt index e8ae6230ab3..1d7af9f9a8e 100644 --- a/Documentation/scsi/dtc3x80.txt +++ b/Documentation/scsi/dtc3x80.txt @@ -12,7 +12,7 @@ The 3180 does not. Otherwise, they are identical. The DTC3x80 does not support DMA but it does have Pseudo-DMA which is supported by the driver. -It's DTC406 scsi chip is supposedly compatible with the NCR 53C400. +Its DTC406 scsi chip is supposedly compatible with the NCR 53C400. It is memory mapped, uses an IRQ, but no dma or io-port. There is internal DMA, between SCSI bus and an on-chip 128-byte buffer. Double buffering is done automagically by the chip. Data is transferred diff --git a/Documentation/scsi/ncr53c8xx.txt b/Documentation/scsi/ncr53c8xx.txt index 08e2b4d04aa..cda5f8fa2c6 100644 --- a/Documentation/scsi/ncr53c8xx.txt +++ b/Documentation/scsi/ncr53c8xx.txt @@ -1479,7 +1479,7 @@ Wide16 SCSI. Enabling serial NVRAM support enables detection of the serial NVRAM included on Symbios and some Symbios compatible host adaptors, and Tekram boards. The serial NVRAM is used by Symbios and Tekram to hold set up parameters for the -host adaptor and it's attached drives. +host adaptor and its attached drives. The Symbios NVRAM also holds data on the boot order of host adaptors in a system with more than one host adaptor. This enables the order of scanning diff --git a/Documentation/scsi/osst.txt b/Documentation/scsi/osst.txt index f536907e241..2b21890bc98 100644 --- a/Documentation/scsi/osst.txt +++ b/Documentation/scsi/osst.txt @@ -40,7 +40,7 @@ behavior looks very much the same as st to the userspace applications. History ------- -In the first place, osst shared it's identity very much with st. That meant +In the first place, osst shared its identity very much with st. That meant that it used the same kernel structures and the same device node as st. So you could only have either of them being present in the kernel. This has been fixed by registering an own device, now. diff --git a/Documentation/scsi/scsi_fc_transport.txt b/Documentation/scsi/scsi_fc_transport.txt index aec6549ab09..e00192de4d1 100644 --- a/Documentation/scsi/scsi_fc_transport.txt +++ b/Documentation/scsi/scsi_fc_transport.txt @@ -70,7 +70,7 @@ Overview: up to an administrative entity controlling the vport. For example, if vports are to be associated with virtual machines, a XEN mgmt utility would be responsible for creating wwpn/wwnn's for the vport, - using it's own naming authority and OUI. (Note: it already does this + using its own naming authority and OUI. (Note: it already does this for virtual MAC addresses). @@ -81,7 +81,7 @@ Device Trees and Vport Objects: with rports and scsi target objects underneath it. Currently the FC transport creates the vport object and places it under the scsi_host object corresponding to the physical adapter. The LLDD will allocate - a new scsi_host for the vport and link it's object under the vport. + a new scsi_host for the vport and link its object under the vport. The remainder of the tree under the vports scsi_host is the same as the non-NPIV case. The transport is written currently to easily allow the parent of the vport to be something other than the scsi_host. diff --git a/Documentation/scsi/sym53c8xx_2.txt b/Documentation/scsi/sym53c8xx_2.txt index eb9a7b905b6..6f63b798967 100644 --- a/Documentation/scsi/sym53c8xx_2.txt +++ b/Documentation/scsi/sym53c8xx_2.txt @@ -687,7 +687,7 @@ maintain the driver code. Enabling serial NVRAM support enables detection of the serial NVRAM included on Symbios and some Symbios compatible host adaptors, and Tekram boards. The serial NVRAM is used by Symbios and Tekram to hold set up parameters for the -host adaptor and it's attached drives. +host adaptor and its attached drives. The Symbios NVRAM also holds data on the boot order of host adaptors in a system with more than one host adaptor. This information is no longer used diff --git a/Documentation/sound/alsa/soc/dapm.txt b/Documentation/sound/alsa/soc/dapm.txt index 9ac842be9b4..05bf5a0eee4 100644 --- a/Documentation/sound/alsa/soc/dapm.txt +++ b/Documentation/sound/alsa/soc/dapm.txt @@ -188,8 +188,8 @@ The WM8731 output mixer has 3 inputs (sources) 3. Mic Sidetone Input Each input in this example has a kcontrol associated with it (defined in example -above) and is connected to the output mixer via it's kcontrol name. We can now -connect the destination widget (wrt audio signal) with it's source widgets. +above) and is connected to the output mixer via its kcontrol name. We can now +connect the destination widget (wrt audio signal) with its source widgets. /* output mixer */ {"Output Mixer", "Line Bypass Switch", "Line Input"}, diff --git a/Documentation/sound/alsa/soc/machine.txt b/Documentation/sound/alsa/soc/machine.txt index bab7711ce96..2524c75557d 100644 --- a/Documentation/sound/alsa/soc/machine.txt +++ b/Documentation/sound/alsa/soc/machine.txt @@ -67,7 +67,7 @@ static struct snd_soc_dai_link corgi_dai = { .ops = &corgi_ops, }; -struct snd_soc_card then sets up the machine with it's DAIs. e.g. +struct snd_soc_card then sets up the machine with its DAIs. e.g. /* corgi audio machine driver */ static struct snd_soc_card snd_soc_corgi = { diff --git a/Documentation/sound/alsa/soc/overview.txt b/Documentation/sound/alsa/soc/overview.txt index 1e4c6d3655f..138ac88c146 100644 --- a/Documentation/sound/alsa/soc/overview.txt +++ b/Documentation/sound/alsa/soc/overview.txt @@ -33,7 +33,7 @@ features :- and machines. * Easy I2S/PCM audio interface setup between codec and SoC. Each SoC - interface and codec registers it's audio interface capabilities with the + interface and codec registers its audio interface capabilities with the core and are subsequently matched and configured when the application hardware parameters are known. diff --git a/Documentation/usb/WUSB-Design-overview.txt b/Documentation/usb/WUSB-Design-overview.txt index c480e9c32db..4c5e3793934 100644 --- a/Documentation/usb/WUSB-Design-overview.txt +++ b/Documentation/usb/WUSB-Design-overview.txt @@ -381,7 +381,7 @@ descriptor that gives us the status of the transfer, its identification we issue another URB to read into the destination buffer the chunk of data coming out of the remote endpoint. Done, wait for the next guy. The callbacks for the URBs issued from here are the ones that will declare -the xfer complete at some point and call it's callback. +the xfer complete at some point and call its callback. Seems simple, but the implementation is not trivial. diff --git a/Documentation/vm/numa_memory_policy.txt b/Documentation/vm/numa_memory_policy.txt index be45dbb9d7f..6690fc34ef6 100644 --- a/Documentation/vm/numa_memory_policy.txt +++ b/Documentation/vm/numa_memory_policy.txt @@ -45,7 +45,7 @@ most general to most specific: to establish the task policy for a child task exec()'d from an executable image that has no awareness of memory policy. See the MEMORY POLICY APIS section, below, for an overview of the system call - that a task may use to set/change it's task/process policy. + that a task may use to set/change its task/process policy. In a multi-threaded task, task policies apply only to the thread [Linux kernel task] that installs the policy and any threads @@ -301,7 +301,7 @@ decrement this reference count, respectively. mpol_put() will only free the structure back to the mempolicy kmem cache when the reference count goes to zero. -When a new memory policy is allocated, it's reference count is initialized +When a new memory policy is allocated, its reference count is initialized to '1', representing the reference held by the task that is installing the new policy. When a pointer to a memory policy structure is stored in another structure, another reference is added, as the task's reference will be dropped diff --git a/Documentation/w1/w1.generic b/Documentation/w1/w1.generic index e3333eec432..212f4ac31c0 100644 --- a/Documentation/w1/w1.generic +++ b/Documentation/w1/w1.generic @@ -25,7 +25,7 @@ When a w1 master driver registers with the w1 subsystem, the following occurs: - sysfs entries for that w1 master are created - the w1 bus is periodically searched for new slave devices -When a device is found on the bus, w1 core checks if driver for it's family is +When a device is found on the bus, w1 core checks if driver for its family is loaded. If so, the family driver is attached to the slave. If there is no driver for the family, default one is assigned, which allows to perform almost any kind of operations. Each logical operation is a transaction -- cgit v1.2.3-70-g09d2 From 15d8ee9a96e5019e698ad3c2c181970deb8ff888 Mon Sep 17 00:00:00 2001 From: Przemo Firszt Date: Wed, 21 Apr 2010 22:16:25 +0100 Subject: HID: wacom: add ABI doc entry for speed attribute Signed-off-by: Przemo Firszt Signed-off-by: Jiri Kosina --- Documentation/ABI/testing/sysfs-wacom | 10 ++++++++++ 1 file changed, 10 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-wacom (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-wacom b/Documentation/ABI/testing/sysfs-wacom new file mode 100644 index 00000000000..1517976e25c --- /dev/null +++ b/Documentation/ABI/testing/sysfs-wacom @@ -0,0 +1,10 @@ +What: /sys/class/hidraw/hidraw*/device/speed +Date: April 2010 +Kernel Version: 2.6.35 +Contact: linux-bluetooth@vger.kernel.org +Description: + The /sys/class/hidraw/hidraw*/device/speed file controls + reporting speed of wacom bluetooth tablet. Reading from + this file returns 1 if tablet reports in high speed mode + or 0 otherwise. Writing to this file one of these values + switches reporting speed. -- cgit v1.2.3-70-g09d2 From b03df87d119f50715891dcc09e487f6ae5c029f1 Mon Sep 17 00:00:00 2001 From: "Serge E. Hallyn" Date: Mon, 26 Apr 2010 11:58:49 +0100 Subject: CRED: Holding a spinlock does not imply the holding of RCU read lock Change the credentials documentation to make it clear that the RCU read lock must be explicitly held when accessing credentials pointers in some other task than current. Holding a spinlock does not implicitly hold the RCU read lock. Signed-off-by: Serge Hallyn Reviewed-by: Paul E. McKenney Signed-off-by: David Howells Signed-off-by: James Morris --- Documentation/credentials.txt | 14 +++++--------- 1 file changed, 5 insertions(+), 9 deletions(-) (limited to 'Documentation') diff --git a/Documentation/credentials.txt b/Documentation/credentials.txt index df03169782e..a2db3528700 100644 --- a/Documentation/credentials.txt +++ b/Documentation/credentials.txt @@ -408,9 +408,6 @@ This should be used inside the RCU read lock, as in the following example: ... } -A function need not get RCU read lock to use __task_cred() if it is holding a -spinlock at the time as this implicitly holds the RCU read lock. - Should it be necessary to hold another task's credentials for a long period of time, and possibly to sleep whilst doing so, then the caller should get a reference on them using: @@ -426,17 +423,16 @@ credentials, hiding the RCU magic from the caller: uid_t task_uid(task) Task's real UID uid_t task_euid(task) Task's effective UID -If the caller is holding a spinlock or the RCU read lock at the time anyway, -then: +If the caller is holding the RCU read lock at the time anyway, then: __task_cred(task)->uid __task_cred(task)->euid should be used instead. Similarly, if multiple aspects of a task's credentials -need to be accessed, RCU read lock or a spinlock should be used, __task_cred() -called, the result stored in a temporary pointer and then the credential -aspects called from that before dropping the lock. This prevents the -potentially expensive RCU magic from being invoked multiple times. +need to be accessed, RCU read lock should be used, __task_cred() called, the +result stored in a temporary pointer and then the credential aspects called +from that before dropping the lock. This prevents the potentially expensive +RCU magic from being invoked multiple times. Should some other single aspect of another task's credentials need to be accessed, then this can be used: -- cgit v1.2.3-70-g09d2 From 0b5adf92ec793c665b0de63ac146d190a921c391 Mon Sep 17 00:00:00 2001 From: Bruno Prémont Date: Sun, 25 Apr 2010 21:29:16 +0200 Subject: HID: split picolcd's operation_mode sysfs attribute MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Original operation_mode sysfs attribute accepts the operation mode as main value with an option delay as second value to change the start-up delay on mode change. As it is preferred to have exactly one value per sysfs attribute, extract this delay into a separate sysfs attribute called operation_mode_delay. Signed-off-by: Bruno Prémont Signed-off-by: Jiri Kosina --- Documentation/ABI/testing/sysfs-driver-hid-picolcd | 17 ++++-- drivers/hid/hid-picolcd.c | 62 ++++++++++++++++------ 2 files changed, 58 insertions(+), 21 deletions(-) (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-driver-hid-picolcd b/Documentation/ABI/testing/sysfs-driver-hid-picolcd index 14f52d70621..08579e7e1e8 100644 --- a/Documentation/ABI/testing/sysfs-driver-hid-picolcd +++ b/Documentation/ABI/testing/sysfs-driver-hid-picolcd @@ -8,12 +8,21 @@ Description: Make it possible to switch the PicoLCD device between LCD enclosed in brackets ('[' and ']') Writing: causes operation mode switch. Permitted values are - the non-active mode names listed when read, optionally followed - by a delay value expressed in ms. + the non-active mode names listed when read. Note: when switching mode the current PicoLCD HID device gets - disconnected and reconnects after above delay (default value - is 5 seconds though this default should not be relied on). + disconnected and reconnects after above delay (see attribute + operation_mode_delay for its value). + + +What: /sys/bus/usb/devices/-:./::./operation_mode_delay +Date: April 2010 +Contact: Bruno Prémont +Description: Delay PicoLCD waits before restarting in new mode when + operation_mode has changed. + + Reading/Writing: It is expressed in ms and permitted range is + 0..30000ms. What: /sys/bus/usb/devices/-:./::./fb_update_rate diff --git a/drivers/hid/hid-picolcd.c b/drivers/hid/hid-picolcd.c index 6f71c60bf65..aa6f2e18d4a 100644 --- a/drivers/hid/hid-picolcd.c +++ b/drivers/hid/hid-picolcd.c @@ -177,6 +177,7 @@ struct picolcd_data { int addr_sz; #endif u8 version[2]; + unsigned short opmode_delay; /* input stuff */ u8 pressed_keys[2]; struct input_dev *input_keys; @@ -1270,8 +1271,7 @@ static ssize_t picolcd_operation_mode_store(struct device *dev, struct picolcd_data *data = dev_get_drvdata(dev); struct hid_report *report = NULL; size_t cnt = count; - int timeout = 5000; - unsigned u; + int timeout = data->opmode_delay; unsigned long flags; if (cnt >= 3 && strncmp("lcd", buf, 3) == 0) { @@ -1288,20 +1288,10 @@ static ssize_t picolcd_operation_mode_store(struct device *dev, if (!report) return -EINVAL; - while (cnt > 0 && (*buf == ' ' || *buf == '\t')) { - buf++; - cnt--; - } while (cnt > 0 && (buf[cnt-1] == '\n' || buf[cnt-1] == '\r')) cnt--; - if (cnt > 0) { - if (sscanf(buf, "%u", &u) != 1) - return -EINVAL; - if (u > 30000) - return -EINVAL; - else - timeout = u; - } + if (cnt != 0) + return -EINVAL; spin_lock_irqsave(&data->lock, flags); hid_set_field(report->field[0], 0, timeout & 0xff); @@ -1314,6 +1304,34 @@ static ssize_t picolcd_operation_mode_store(struct device *dev, static DEVICE_ATTR(operation_mode, 0644, picolcd_operation_mode_show, picolcd_operation_mode_store); +/* + * The "operation_mode_delay" sysfs attribute + */ +static ssize_t picolcd_operation_mode_delay_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct picolcd_data *data = dev_get_drvdata(dev); + + return snprintf(buf, PAGE_SIZE, "%hu\n", data->opmode_delay); +} + +static ssize_t picolcd_operation_mode_delay_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct picolcd_data *data = dev_get_drvdata(dev); + unsigned u; + if (sscanf(buf, "%u", &u) != 1) + return -EINVAL; + if (u > 30000) + return -EINVAL; + else + data->opmode_delay = u; + return count; +} + +static DEVICE_ATTR(operation_mode_delay, 0644, picolcd_operation_mode_delay_show, + picolcd_operation_mode_delay_store); + #ifdef CONFIG_DEBUG_FS /* @@ -2409,6 +2427,7 @@ static int picolcd_probe(struct hid_device *hdev, spin_lock_init(&data->lock); mutex_init(&data->mutex); data->hdev = hdev; + data->opmode_delay = 5000; if (hdev->product == USB_DEVICE_ID_PICOLCD_BOOTLOADER) data->status |= PICOLCD_BOOTLOADER; hid_set_drvdata(hdev, data); @@ -2436,24 +2455,32 @@ static int picolcd_probe(struct hid_device *hdev, goto err_cleanup_hid_hw; } - error = device_create_file(&hdev->dev, &dev_attr_operation_mode); + error = device_create_file(&hdev->dev, &dev_attr_operation_mode_delay); if (error) { dev_err(&hdev->dev, "failed to create sysfs attributes\n"); goto err_cleanup_hid_ll; } + error = device_create_file(&hdev->dev, &dev_attr_operation_mode); + if (error) { + dev_err(&hdev->dev, "failed to create sysfs attributes\n"); + goto err_cleanup_sysfs1; + } + if (data->status & PICOLCD_BOOTLOADER) error = picolcd_probe_bootloader(hdev, data); else error = picolcd_probe_lcd(hdev, data); if (error) - goto err_cleanup_sysfs; + goto err_cleanup_sysfs2; dbg_hid(PICOLCD_NAME " activated and initialized\n"); return 0; -err_cleanup_sysfs: +err_cleanup_sysfs2: device_remove_file(&hdev->dev, &dev_attr_operation_mode); +err_cleanup_sysfs1: + device_remove_file(&hdev->dev, &dev_attr_operation_mode_delay); err_cleanup_hid_ll: hdev->ll_driver->close(hdev); err_cleanup_hid_hw: @@ -2478,6 +2505,7 @@ static void picolcd_remove(struct hid_device *hdev) picolcd_exit_devfs(data); device_remove_file(&hdev->dev, &dev_attr_operation_mode); + device_remove_file(&hdev->dev, &dev_attr_operation_mode_delay); hdev->ll_driver->close(hdev); hid_hw_stop(hdev); hid_set_drvdata(hdev, NULL); -- cgit v1.2.3-70-g09d2 From 07271aa42d13378e67ebd79ea9ca1c4a5e2ad46f Mon Sep 17 00:00:00 2001 From: Chase Douglas Date: Fri, 23 Apr 2010 14:02:39 -0400 Subject: tracing: Add documentation for trace commands mod, traceon/traceoff The mod command went in as commit 64e7c440618998fd69eee6ab490b042d12248021 The traceon/traceoff commands went in as commit 23b4ff3aa479c9e3bb23cb6b2d0a97878399784a Signed-off-by: Chase Douglas LKML-Reference: <1272045759-32018-1-git-send-email-chase.douglas@canonical.com> Signed-off-by: Steven Rostedt --- Documentation/trace/ftrace.txt | 44 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) (limited to 'Documentation') diff --git a/Documentation/trace/ftrace.txt b/Documentation/trace/ftrace.txt index 52011815c90..557c1edecca 100644 --- a/Documentation/trace/ftrace.txt +++ b/Documentation/trace/ftrace.txt @@ -155,6 +155,9 @@ of ftrace. Here is a list of some of the key files: to be traced. Echoing names of functions into this file will limit the trace to only those functions. + This interface also allows for commands to be used. See the + "Filter commands" section for more details. + set_ftrace_notrace: This has an effect opposite to that of @@ -1824,6 +1827,47 @@ this special filter via: echo > set_graph_function +Filter commands +--------------- + +A few commands are supported by the set_ftrace_filter interface. +Trace commands have the following format: + +:: + +The following commands are supported: + +- mod + This command enables function filtering per module. The + parameter defines the module. For example, if only the write* + functions in the ext3 module are desired, run: + + echo 'write*:mod:ext3' > set_ftrace_filter + + This command interacts with the filter in the same way as + filtering based on function names. Thus, adding more functions + in a different module is accomplished by appending (>>) to the + filter file. Remove specific module functions by prepending + '!': + + echo '!writeback*:mod:ext3' >> set_ftrace_filter + +- traceon/traceoff + These commands turn tracing on and off when the specified + functions are hit. The parameter determines how many times the + tracing system is turned on and off. If unspecified, there is + no limit. For example, to disable tracing when a schedule bug + is hit the first 5 times, run: + + echo '__schedule_bug:traceoff:5' > set_ftrace_filter + + These commands are cumulative whether or not they are appended + to set_ftrace_filter. To remove a command, prepend it by '!' + and drop the parameter: + + echo '!__schedule_bug:traceoff' > set_ftrace_filter + + trace_pipe ---------- -- cgit v1.2.3-70-g09d2 From 05be7a868e229b26a5a7de217343f39b4dfed205 Mon Sep 17 00:00:00 2001 From: Bill Pemberton Date: Tue, 27 Apr 2010 16:20:15 -0400 Subject: doc: Change urls for sparse The location of the sparse web page and git tree were no longer valid. This changes them to point to the current versions. Signed-off-by: Bill Pemberton Signed-off-by: Jiri Kosina --- Documentation/sparse.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/sparse.txt b/Documentation/sparse.txt index 34c76a55bc0..9b659c79a54 100644 --- a/Documentation/sparse.txt +++ b/Documentation/sparse.txt @@ -54,12 +54,12 @@ Getting sparse ~~~~~~~~~~~~~~ You can get latest released versions from the Sparse homepage at -http://www.kernel.org/pub/linux/kernel/people/josh/sparse/ +https://sparse.wiki.kernel.org/index.php/Main_Page Alternatively, you can get snapshots of the latest development version of sparse using git to clone.. - git://git.kernel.org/pub/scm/linux/kernel/git/josh/sparse.git + git://git.kernel.org/pub/scm/devel/sparse/sparse.git DaveJ has hourly generated tarballs of the git tree available at.. -- cgit v1.2.3-70-g09d2 From 95b1ed2ac7ffe3205afc6f5a20320fbdb984da92 Mon Sep 17 00:00:00 2001 From: Hector Palacios Date: Thu, 29 Apr 2010 15:02:28 -0700 Subject: spi: spidev_test gives error upon 1-byte transfer The sample application spidev_test.c is using SPI_IOC_MESSAGE ioctl to do an SPI transfer. This ioctl returns the number of bytes successfully transmitted or a negative error code upon erroneous completion. The application however is returning an error if the result of the ioclt if the return value is 1. This makes the application to fail upon 1-byte length transfers. Signed-off-by: Hector Palacios Signed-off-by: Andrew Morton Signed-off-by: Grant Likely --- Documentation/spi/spidev_test.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/spi/spidev_test.c b/Documentation/spi/spidev_test.c index 10abd3773e4..16feda90146 100644 --- a/Documentation/spi/spidev_test.c +++ b/Documentation/spi/spidev_test.c @@ -58,7 +58,7 @@ static void transfer(int fd) }; ret = ioctl(fd, SPI_IOC_MESSAGE(1), &tr); - if (ret == 1) + if (ret < 1) pabort("can't send spi message"); for (ret = 0; ret < ARRAY_SIZE(tx); ret++) { -- cgit v1.2.3-70-g09d2 From 16b32e0c9eec1bb8d53deedcd9f4704a114d84bb Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Mon, 3 May 2010 23:29:58 -0700 Subject: Input: remove obsolete {corgi,spitz,tosa}kbd.c Signed-off-by: Eric Miao Signed-off-by: Dmitry Torokhov --- Documentation/feature-removal-schedule.txt | 11 - drivers/input/keyboard/Kconfig | 48 --- drivers/input/keyboard/Makefile | 3 - drivers/input/keyboard/corgikbd.c | 414 ------------------------ drivers/input/keyboard/spitzkbd.c | 496 ----------------------------- drivers/input/keyboard/tosakbd.c | 431 ------------------------- 6 files changed, 1403 deletions(-) delete mode 100644 drivers/input/keyboard/corgikbd.c delete mode 100644 drivers/input/keyboard/spitzkbd.c delete mode 100644 drivers/input/keyboard/tosakbd.c (limited to 'Documentation') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index ed511af0f79..c8659ad40b5 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -520,17 +520,6 @@ Who: Hans de Goede ---------------------------- -What: corgikbd, spitzkbd, tosakbd driver -When: 2.6.35 -Files: drivers/input/keyboard/{corgi,spitz,tosa}kbd.c -Why: We now have a generic GPIO based matrix keyboard driver that - are fully capable of handling all the keys on these devices. - The original drivers manipulate the GPIO registers directly - and so are difficult to maintain. -Who: Eric Miao - ----------------------------- - What: corgi_ssp and corgi_ts driver When: 2.6.35 Files: arch/arm/mach-pxa/corgi_ssp.c, drivers/input/touchscreen/corgi_ts.c diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index 64c102355f5..a8293388d01 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -143,19 +143,6 @@ config KEYBOARD_BFIN To compile this driver as a module, choose M here: the module will be called bf54x-keys. -config KEYBOARD_CORGI - tristate "Corgi keyboard (deprecated)" - depends on PXA_SHARPSL - help - Say Y here to enable the keyboard on the Sharp Zaurus SL-C7xx - series of PDAs. - - This driver is now deprecated, use generic GPIO based matrix - keyboard driver instead. - - To compile this driver as a module, choose M here: the - module will be called corgikbd. - config KEYBOARD_LKKBD tristate "DECstation/VAXstation LK201/LK401 keyboard" select SERIO @@ -339,19 +326,6 @@ config KEYBOARD_PXA930_ROTARY To compile this driver as a module, choose M here: the module will be called pxa930_rotary. -config KEYBOARD_SPITZ - tristate "Spitz keyboard (deprecated)" - depends on PXA_SHARPSL - help - Say Y here to enable the keyboard on the Sharp Zaurus SL-C1000, - SL-C3000 and Sl-C3100 series of PDAs. - - This driver is now deprecated, use generic GPIO based matrix - keyboard driver instead. - - To compile this driver as a module, choose M here: the - module will be called spitzkbd. - config KEYBOARD_STOWAWAY tristate "Stowaway keyboard" select SERIO @@ -414,28 +388,6 @@ config KEYBOARD_TWL4030 To compile this driver as a module, choose M here: the module will be called twl4030_keypad. -config KEYBOARD_TOSA - tristate "Tosa keyboard (deprecated)" - depends on MACH_TOSA - help - Say Y here to enable the keyboard on the Sharp Zaurus SL-6000x (Tosa) - - This driver is now deprecated, use generic GPIO based matrix - keyboard driver instead. - - To compile this driver as a module, choose M here: the - module will be called tosakbd. - -config KEYBOARD_TOSA_USE_EXT_KEYCODES - bool "Tosa keyboard: use extended keycodes" - depends on KEYBOARD_TOSA - help - Say Y here to enable the tosa keyboard driver to generate extended - (>= 127) keycodes. Be aware, that they can't be correctly interpreted - by either console keyboard driver or by Kdrive keybd driver. - - Say Y only if you know, what you are doing! - config KEYBOARD_XTKBD tristate "XT keyboard" select SERIO diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile index 706c6b5ed5f..9a74127e4d1 100644 --- a/drivers/input/keyboard/Makefile +++ b/drivers/input/keyboard/Makefile @@ -11,7 +11,6 @@ obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o obj-$(CONFIG_KEYBOARD_ATARI) += atakbd.o obj-$(CONFIG_KEYBOARD_ATKBD) += atkbd.o obj-$(CONFIG_KEYBOARD_BFIN) += bf54x-keys.o -obj-$(CONFIG_KEYBOARD_CORGI) += corgikbd.o obj-$(CONFIG_KEYBOARD_DAVINCI) += davinci_keyscan.o obj-$(CONFIG_KEYBOARD_EP93XX) += ep93xx_keypad.o obj-$(CONFIG_KEYBOARD_GPIO) += gpio_keys.o @@ -33,10 +32,8 @@ obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o obj-$(CONFIG_KEYBOARD_QT2160) += qt2160.o obj-$(CONFIG_KEYBOARD_SH_KEYSC) += sh_keysc.o -obj-$(CONFIG_KEYBOARD_SPITZ) += spitzkbd.o obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o obj-$(CONFIG_KEYBOARD_SUNKBD) += sunkbd.o -obj-$(CONFIG_KEYBOARD_TOSA) += tosakbd.o obj-$(CONFIG_KEYBOARD_TWL4030) += twl4030_keypad.o obj-$(CONFIG_KEYBOARD_XTKBD) += xtkbd.o obj-$(CONFIG_KEYBOARD_W90P910) += w90p910_keypad.o diff --git a/drivers/input/keyboard/corgikbd.c b/drivers/input/keyboard/corgikbd.c deleted file mode 100644 index 634af6a8e6b..00000000000 --- a/drivers/input/keyboard/corgikbd.c +++ /dev/null @@ -1,414 +0,0 @@ -/* - * Keyboard driver for Sharp Corgi models (SL-C7xx) - * - * Copyright (c) 2004-2005 Richard Purdie - * - * Based on xtkbd.c/locomkbd.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#define KB_ROWS 8 -#define KB_COLS 12 -#define KB_ROWMASK(r) (1 << (r)) -#define SCANCODE(r,c) ( ((r)<<4) + (c) + 1 ) -/* zero code, 124 scancodes */ -#define NR_SCANCODES ( SCANCODE(KB_ROWS-1,KB_COLS-1) +1 +1 ) - -#define SCAN_INTERVAL (50) /* ms */ -#define HINGE_SCAN_INTERVAL (250) /* ms */ - -#define CORGI_KEY_CALENDER KEY_F1 -#define CORGI_KEY_ADDRESS KEY_F2 -#define CORGI_KEY_FN KEY_F3 -#define CORGI_KEY_CANCEL KEY_F4 -#define CORGI_KEY_OFF KEY_SUSPEND -#define CORGI_KEY_EXOK KEY_F5 -#define CORGI_KEY_EXCANCEL KEY_F6 -#define CORGI_KEY_EXJOGDOWN KEY_F7 -#define CORGI_KEY_EXJOGUP KEY_F8 -#define CORGI_KEY_JAP1 KEY_LEFTCTRL -#define CORGI_KEY_JAP2 KEY_LEFTALT -#define CORGI_KEY_MAIL KEY_F10 -#define CORGI_KEY_OK KEY_F11 -#define CORGI_KEY_MENU KEY_F12 - -static unsigned char corgikbd_keycode[NR_SCANCODES] = { - 0, /* 0 */ - 0, KEY_1, KEY_3, KEY_5, KEY_6, KEY_7, KEY_9, KEY_0, KEY_BACKSPACE, 0, 0, 0, 0, 0, 0, 0, /* 1-16 */ - 0, KEY_2, KEY_4, KEY_R, KEY_Y, KEY_8, KEY_I, KEY_O, KEY_P, 0, 0, 0, 0, 0, 0, 0, /* 17-32 */ - KEY_TAB, KEY_Q, KEY_E, KEY_T, KEY_G, KEY_U, KEY_J, KEY_K, 0, 0, 0, 0, 0, 0, 0, 0, /* 33-48 */ - CORGI_KEY_CALENDER, KEY_W, KEY_S, KEY_F, KEY_V, KEY_H, KEY_M, KEY_L, 0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, /* 49-64 */ - CORGI_KEY_ADDRESS, KEY_A, KEY_D, KEY_C, KEY_B, KEY_N, KEY_DOT, 0, KEY_ENTER, 0, KEY_LEFTSHIFT, 0, 0, 0, 0, 0, /* 65-80 */ - CORGI_KEY_MAIL, KEY_Z, KEY_X, KEY_MINUS, KEY_SPACE, KEY_COMMA, 0, KEY_UP, 0, 0, 0, CORGI_KEY_FN, 0, 0, 0, 0, /* 81-96 */ - KEY_SYSRQ, CORGI_KEY_JAP1, CORGI_KEY_JAP2, CORGI_KEY_CANCEL, CORGI_KEY_OK, CORGI_KEY_MENU, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0, 0, 0, 0, /* 97-112 */ - CORGI_KEY_OFF, CORGI_KEY_EXOK, CORGI_KEY_EXCANCEL, CORGI_KEY_EXJOGDOWN, CORGI_KEY_EXJOGUP, 0, 0, 0, 0, 0, 0, 0, /* 113-124 */ -}; - - -struct corgikbd { - unsigned char keycode[ARRAY_SIZE(corgikbd_keycode)]; - struct input_dev *input; - - spinlock_t lock; - struct timer_list timer; - struct timer_list htimer; - - unsigned int suspended; - unsigned long suspend_jiffies; -}; - -#define KB_DISCHARGE_DELAY 10 -#define KB_ACTIVATE_DELAY 10 - -/* Helper functions for reading the keyboard matrix - * Note: We should really be using the generic gpio functions to alter - * GPDR but it requires a function call per GPIO bit which is - * excessive when we need to access 12 bits at once, multiple times. - * These functions must be called within local_irq_save()/local_irq_restore() - * or similar. - */ -static inline void corgikbd_discharge_all(void) -{ - /* STROBE All HiZ */ - GPCR2 = CORGI_GPIO_ALL_STROBE_BIT; - GPDR2 &= ~CORGI_GPIO_ALL_STROBE_BIT; -} - -static inline void corgikbd_activate_all(void) -{ - /* STROBE ALL -> High */ - GPSR2 = CORGI_GPIO_ALL_STROBE_BIT; - GPDR2 |= CORGI_GPIO_ALL_STROBE_BIT; - - udelay(KB_DISCHARGE_DELAY); - - /* Clear any interrupts we may have triggered when altering the GPIO lines */ - GEDR1 = CORGI_GPIO_HIGH_SENSE_BIT; - GEDR2 = CORGI_GPIO_LOW_SENSE_BIT; -} - -static inline void corgikbd_activate_col(int col) -{ - /* STROBE col -> High, not col -> HiZ */ - GPSR2 = CORGI_GPIO_STROBE_BIT(col); - GPDR2 = (GPDR2 & ~CORGI_GPIO_ALL_STROBE_BIT) | CORGI_GPIO_STROBE_BIT(col); -} - -static inline void corgikbd_reset_col(int col) -{ - /* STROBE col -> Low */ - GPCR2 = CORGI_GPIO_STROBE_BIT(col); - /* STROBE col -> out, not col -> HiZ */ - GPDR2 = (GPDR2 & ~CORGI_GPIO_ALL_STROBE_BIT) | CORGI_GPIO_STROBE_BIT(col); -} - -#define GET_ROWS_STATUS(c) (((GPLR1 & CORGI_GPIO_HIGH_SENSE_BIT) >> CORGI_GPIO_HIGH_SENSE_RSHIFT) | ((GPLR2 & CORGI_GPIO_LOW_SENSE_BIT) << CORGI_GPIO_LOW_SENSE_LSHIFT)) - -/* - * The corgi keyboard only generates interrupts when a key is pressed. - * When a key is pressed, we enable a timer which then scans the - * keyboard to detect when the key is released. - */ - -/* Scan the hardware keyboard and push any changes up through the input layer */ -static void corgikbd_scankeyboard(struct corgikbd *corgikbd_data) -{ - unsigned int row, col, rowd; - unsigned long flags; - unsigned int num_pressed; - - if (corgikbd_data->suspended) - return; - - spin_lock_irqsave(&corgikbd_data->lock, flags); - - num_pressed = 0; - for (col = 0; col < KB_COLS; col++) { - /* - * Discharge the output driver capacitatance - * in the keyboard matrix. (Yes it is significant..) - */ - - corgikbd_discharge_all(); - udelay(KB_DISCHARGE_DELAY); - - corgikbd_activate_col(col); - udelay(KB_ACTIVATE_DELAY); - - rowd = GET_ROWS_STATUS(col); - for (row = 0; row < KB_ROWS; row++) { - unsigned int scancode, pressed; - - scancode = SCANCODE(row, col); - pressed = rowd & KB_ROWMASK(row); - - input_report_key(corgikbd_data->input, corgikbd_data->keycode[scancode], pressed); - - if (pressed) - num_pressed++; - - if (pressed && (corgikbd_data->keycode[scancode] == CORGI_KEY_OFF) - && time_after(jiffies, corgikbd_data->suspend_jiffies + HZ)) { - input_event(corgikbd_data->input, EV_PWR, CORGI_KEY_OFF, 1); - corgikbd_data->suspend_jiffies=jiffies; - } - } - corgikbd_reset_col(col); - } - - corgikbd_activate_all(); - - input_sync(corgikbd_data->input); - - /* if any keys are pressed, enable the timer */ - if (num_pressed) - mod_timer(&corgikbd_data->timer, jiffies + msecs_to_jiffies(SCAN_INTERVAL)); - - spin_unlock_irqrestore(&corgikbd_data->lock, flags); -} - -/* - * corgi keyboard interrupt handler. - */ -static irqreturn_t corgikbd_interrupt(int irq, void *dev_id) -{ - struct corgikbd *corgikbd_data = dev_id; - - if (!timer_pending(&corgikbd_data->timer)) { - /** wait chattering delay **/ - udelay(20); - corgikbd_scankeyboard(corgikbd_data); - } - - return IRQ_HANDLED; -} - -/* - * corgi timer checking for released keys - */ -static void corgikbd_timer_callback(unsigned long data) -{ - struct corgikbd *corgikbd_data = (struct corgikbd *) data; - corgikbd_scankeyboard(corgikbd_data); -} - -/* - * The hinge switches generate no interrupt so they need to be - * monitored by a timer. - * - * We debounce the switches and pass them to the input system. - * - * gprr == 0x00 - Keyboard with Landscape Screen - * 0x08 - No Keyboard with Portrait Screen - * 0x0c - Keyboard and Screen Closed - */ - -#define READ_GPIO_BIT(x) (GPLR(x) & GPIO_bit(x)) -#define HINGE_STABLE_COUNT 2 -static int sharpsl_hinge_state; -static int hinge_count; - -static void corgikbd_hinge_timer(unsigned long data) -{ - struct corgikbd *corgikbd_data = (struct corgikbd *) data; - unsigned long gprr; - unsigned long flags; - - gprr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_GPRR) & (CORGI_SCP_SWA | CORGI_SCP_SWB); - gprr |= (READ_GPIO_BIT(CORGI_GPIO_AK_INT) != 0); - if (gprr != sharpsl_hinge_state) { - hinge_count = 0; - sharpsl_hinge_state = gprr; - } else if (hinge_count < HINGE_STABLE_COUNT) { - hinge_count++; - if (hinge_count >= HINGE_STABLE_COUNT) { - spin_lock_irqsave(&corgikbd_data->lock, flags); - - input_report_switch(corgikbd_data->input, SW_LID, ((sharpsl_hinge_state & CORGI_SCP_SWA) != 0)); - input_report_switch(corgikbd_data->input, SW_TABLET_MODE, ((sharpsl_hinge_state & CORGI_SCP_SWB) != 0)); - input_report_switch(corgikbd_data->input, SW_HEADPHONE_INSERT, (READ_GPIO_BIT(CORGI_GPIO_AK_INT) != 0)); - input_sync(corgikbd_data->input); - - spin_unlock_irqrestore(&corgikbd_data->lock, flags); - } - } - mod_timer(&corgikbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL)); -} - -#ifdef CONFIG_PM -static int corgikbd_suspend(struct platform_device *dev, pm_message_t state) -{ - int i; - struct corgikbd *corgikbd = platform_get_drvdata(dev); - - corgikbd->suspended = 1; - /* strobe 0 is the power key so this can't be made an input for - powersaving therefore i = 1 */ - for (i = 1; i < CORGI_KEY_STROBE_NUM; i++) - pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_IN); - - return 0; -} - -static int corgikbd_resume(struct platform_device *dev) -{ - int i; - struct corgikbd *corgikbd = platform_get_drvdata(dev); - - for (i = 1; i < CORGI_KEY_STROBE_NUM; i++) - pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_OUT | GPIO_DFLT_HIGH); - - /* Upon resume, ignore the suspend key for a short while */ - corgikbd->suspend_jiffies=jiffies; - corgikbd->suspended = 0; - - return 0; -} -#else -#define corgikbd_suspend NULL -#define corgikbd_resume NULL -#endif - -static int __devinit corgikbd_probe(struct platform_device *pdev) -{ - struct corgikbd *corgikbd; - struct input_dev *input_dev; - int i, err = -ENOMEM; - - corgikbd = kzalloc(sizeof(struct corgikbd), GFP_KERNEL); - input_dev = input_allocate_device(); - if (!corgikbd || !input_dev) - goto fail; - - platform_set_drvdata(pdev, corgikbd); - - corgikbd->input = input_dev; - spin_lock_init(&corgikbd->lock); - - /* Init Keyboard rescan timer */ - init_timer(&corgikbd->timer); - corgikbd->timer.function = corgikbd_timer_callback; - corgikbd->timer.data = (unsigned long) corgikbd; - - /* Init Hinge Timer */ - init_timer(&corgikbd->htimer); - corgikbd->htimer.function = corgikbd_hinge_timer; - corgikbd->htimer.data = (unsigned long) corgikbd; - - corgikbd->suspend_jiffies=jiffies; - - memcpy(corgikbd->keycode, corgikbd_keycode, sizeof(corgikbd->keycode)); - - input_dev->name = "Corgi Keyboard"; - input_dev->phys = "corgikbd/input0"; - input_dev->id.bustype = BUS_HOST; - input_dev->id.vendor = 0x0001; - input_dev->id.product = 0x0001; - input_dev->id.version = 0x0100; - input_dev->dev.parent = &pdev->dev; - - input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | - BIT_MASK(EV_PWR) | BIT_MASK(EV_SW); - input_dev->keycode = corgikbd->keycode; - input_dev->keycodesize = sizeof(unsigned char); - input_dev->keycodemax = ARRAY_SIZE(corgikbd_keycode); - - for (i = 0; i < ARRAY_SIZE(corgikbd_keycode); i++) - set_bit(corgikbd->keycode[i], input_dev->keybit); - clear_bit(0, input_dev->keybit); - set_bit(SW_LID, input_dev->swbit); - set_bit(SW_TABLET_MODE, input_dev->swbit); - set_bit(SW_HEADPHONE_INSERT, input_dev->swbit); - - err = input_register_device(corgikbd->input); - if (err) - goto fail; - - mod_timer(&corgikbd->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL)); - - /* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */ - for (i = 0; i < CORGI_KEY_SENSE_NUM; i++) { - pxa_gpio_mode(CORGI_GPIO_KEY_SENSE(i) | GPIO_IN); - if (request_irq(CORGI_IRQ_GPIO_KEY_SENSE(i), corgikbd_interrupt, - IRQF_DISABLED | IRQF_TRIGGER_RISING, - "corgikbd", corgikbd)) - printk(KERN_WARNING "corgikbd: Can't get IRQ: %d!\n", i); - } - - /* Set Strobe lines as outputs - set high */ - for (i = 0; i < CORGI_KEY_STROBE_NUM; i++) - pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_OUT | GPIO_DFLT_HIGH); - - /* Setup the headphone jack as an input */ - pxa_gpio_mode(CORGI_GPIO_AK_INT | GPIO_IN); - - return 0; - - fail: input_free_device(input_dev); - kfree(corgikbd); - return err; -} - -static int __devexit corgikbd_remove(struct platform_device *pdev) -{ - int i; - struct corgikbd *corgikbd = platform_get_drvdata(pdev); - - for (i = 0; i < CORGI_KEY_SENSE_NUM; i++) - free_irq(CORGI_IRQ_GPIO_KEY_SENSE(i), corgikbd); - - del_timer_sync(&corgikbd->htimer); - del_timer_sync(&corgikbd->timer); - - input_unregister_device(corgikbd->input); - - kfree(corgikbd); - - return 0; -} - -static struct platform_driver corgikbd_driver = { - .probe = corgikbd_probe, - .remove = __devexit_p(corgikbd_remove), - .suspend = corgikbd_suspend, - .resume = corgikbd_resume, - .driver = { - .name = "corgi-keyboard", - .owner = THIS_MODULE, - }, -}; - -static int __init corgikbd_init(void) -{ - return platform_driver_register(&corgikbd_driver); -} - -static void __exit corgikbd_exit(void) -{ - platform_driver_unregister(&corgikbd_driver); -} - -module_init(corgikbd_init); -module_exit(corgikbd_exit); - -MODULE_AUTHOR("Richard Purdie "); -MODULE_DESCRIPTION("Corgi Keyboard Driver"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:corgi-keyboard"); diff --git a/drivers/input/keyboard/spitzkbd.c b/drivers/input/keyboard/spitzkbd.c deleted file mode 100644 index 13967422658..00000000000 --- a/drivers/input/keyboard/spitzkbd.c +++ /dev/null @@ -1,496 +0,0 @@ -/* - * Keyboard driver for Sharp Spitz, Borzoi and Akita (SL-Cxx00 series) - * - * Copyright (c) 2005 Richard Purdie - * - * Based on corgikbd.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#define KB_ROWS 7 -#define KB_COLS 11 -#define KB_ROWMASK(r) (1 << (r)) -#define SCANCODE(r,c) (((r)<<4) + (c) + 1) -#define NR_SCANCODES ((KB_ROWS<<4) + 1) - -#define SCAN_INTERVAL (50) /* ms */ -#define HINGE_SCAN_INTERVAL (150) /* ms */ - -#define SPITZ_KEY_CALENDER KEY_F1 -#define SPITZ_KEY_ADDRESS KEY_F2 -#define SPITZ_KEY_FN KEY_F3 -#define SPITZ_KEY_CANCEL KEY_F4 -#define SPITZ_KEY_EXOK KEY_F5 -#define SPITZ_KEY_EXCANCEL KEY_F6 -#define SPITZ_KEY_EXJOGDOWN KEY_F7 -#define SPITZ_KEY_EXJOGUP KEY_F8 -#define SPITZ_KEY_JAP1 KEY_LEFTALT -#define SPITZ_KEY_JAP2 KEY_RIGHTCTRL -#define SPITZ_KEY_SYNC KEY_F9 -#define SPITZ_KEY_MAIL KEY_F10 -#define SPITZ_KEY_OK KEY_F11 -#define SPITZ_KEY_MENU KEY_F12 - -static unsigned char spitzkbd_keycode[NR_SCANCODES] = { - 0, /* 0 */ - KEY_LEFTCTRL, KEY_1, KEY_3, KEY_5, KEY_6, KEY_7, KEY_9, KEY_0, KEY_BACKSPACE, SPITZ_KEY_EXOK, SPITZ_KEY_EXCANCEL, 0, 0, 0, 0, 0, /* 1-16 */ - 0, KEY_2, KEY_4, KEY_R, KEY_Y, KEY_8, KEY_I, KEY_O, KEY_P, SPITZ_KEY_EXJOGDOWN, SPITZ_KEY_EXJOGUP, 0, 0, 0, 0, 0, /* 17-32 */ - KEY_TAB, KEY_Q, KEY_E, KEY_T, KEY_G, KEY_U, KEY_J, KEY_K, 0, 0, 0, 0, 0, 0, 0, 0, /* 33-48 */ - SPITZ_KEY_ADDRESS, KEY_W, KEY_S, KEY_F, KEY_V, KEY_H, KEY_M, KEY_L, 0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, /* 49-64 */ - SPITZ_KEY_CALENDER, KEY_A, KEY_D, KEY_C, KEY_B, KEY_N, KEY_DOT, 0, KEY_ENTER, KEY_LEFTSHIFT, 0, 0, 0, 0, 0, 0, /* 65-80 */ - SPITZ_KEY_MAIL, KEY_Z, KEY_X, KEY_MINUS, KEY_SPACE, KEY_COMMA, 0, KEY_UP, 0, 0, SPITZ_KEY_FN, 0, 0, 0, 0, 0, /* 81-96 */ - KEY_SYSRQ, SPITZ_KEY_JAP1, SPITZ_KEY_JAP2, SPITZ_KEY_CANCEL, SPITZ_KEY_OK, SPITZ_KEY_MENU, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0, 0, 0, 0 /* 97-112 */ -}; - -static int spitz_strobes[] = { - SPITZ_GPIO_KEY_STROBE0, - SPITZ_GPIO_KEY_STROBE1, - SPITZ_GPIO_KEY_STROBE2, - SPITZ_GPIO_KEY_STROBE3, - SPITZ_GPIO_KEY_STROBE4, - SPITZ_GPIO_KEY_STROBE5, - SPITZ_GPIO_KEY_STROBE6, - SPITZ_GPIO_KEY_STROBE7, - SPITZ_GPIO_KEY_STROBE8, - SPITZ_GPIO_KEY_STROBE9, - SPITZ_GPIO_KEY_STROBE10, -}; - -static int spitz_senses[] = { - SPITZ_GPIO_KEY_SENSE0, - SPITZ_GPIO_KEY_SENSE1, - SPITZ_GPIO_KEY_SENSE2, - SPITZ_GPIO_KEY_SENSE3, - SPITZ_GPIO_KEY_SENSE4, - SPITZ_GPIO_KEY_SENSE5, - SPITZ_GPIO_KEY_SENSE6, -}; - -struct spitzkbd { - unsigned char keycode[ARRAY_SIZE(spitzkbd_keycode)]; - struct input_dev *input; - char phys[32]; - - spinlock_t lock; - struct timer_list timer; - struct timer_list htimer; - - unsigned int suspended; - unsigned long suspend_jiffies; -}; - -#define KB_DISCHARGE_DELAY 10 -#define KB_ACTIVATE_DELAY 10 - -/* Helper functions for reading the keyboard matrix - * Note: We should really be using the generic gpio functions to alter - * GPDR but it requires a function call per GPIO bit which is - * excessive when we need to access 11 bits at once, multiple times. - * These functions must be called within local_irq_save()/local_irq_restore() - * or similar. - */ -static inline void spitzkbd_discharge_all(void) -{ - /* STROBE All HiZ */ - GPCR0 = SPITZ_GPIO_G0_STROBE_BIT; - GPDR0 &= ~SPITZ_GPIO_G0_STROBE_BIT; - GPCR1 = SPITZ_GPIO_G1_STROBE_BIT; - GPDR1 &= ~SPITZ_GPIO_G1_STROBE_BIT; - GPCR2 = SPITZ_GPIO_G2_STROBE_BIT; - GPDR2 &= ~SPITZ_GPIO_G2_STROBE_BIT; - GPCR3 = SPITZ_GPIO_G3_STROBE_BIT; - GPDR3 &= ~SPITZ_GPIO_G3_STROBE_BIT; -} - -static inline void spitzkbd_activate_all(void) -{ - /* STROBE ALL -> High */ - GPSR0 = SPITZ_GPIO_G0_STROBE_BIT; - GPDR0 |= SPITZ_GPIO_G0_STROBE_BIT; - GPSR1 = SPITZ_GPIO_G1_STROBE_BIT; - GPDR1 |= SPITZ_GPIO_G1_STROBE_BIT; - GPSR2 = SPITZ_GPIO_G2_STROBE_BIT; - GPDR2 |= SPITZ_GPIO_G2_STROBE_BIT; - GPSR3 = SPITZ_GPIO_G3_STROBE_BIT; - GPDR3 |= SPITZ_GPIO_G3_STROBE_BIT; - - udelay(KB_DISCHARGE_DELAY); - - /* Clear any interrupts we may have triggered when altering the GPIO lines */ - GEDR0 = SPITZ_GPIO_G0_SENSE_BIT; - GEDR1 = SPITZ_GPIO_G1_SENSE_BIT; - GEDR2 = SPITZ_GPIO_G2_SENSE_BIT; - GEDR3 = SPITZ_GPIO_G3_SENSE_BIT; -} - -static inline void spitzkbd_activate_col(int col) -{ - int gpio = spitz_strobes[col]; - GPDR0 &= ~SPITZ_GPIO_G0_STROBE_BIT; - GPDR1 &= ~SPITZ_GPIO_G1_STROBE_BIT; - GPDR2 &= ~SPITZ_GPIO_G2_STROBE_BIT; - GPDR3 &= ~SPITZ_GPIO_G3_STROBE_BIT; - GPSR(gpio) = GPIO_bit(gpio); - GPDR(gpio) |= GPIO_bit(gpio); -} - -static inline void spitzkbd_reset_col(int col) -{ - int gpio = spitz_strobes[col]; - GPDR0 &= ~SPITZ_GPIO_G0_STROBE_BIT; - GPDR1 &= ~SPITZ_GPIO_G1_STROBE_BIT; - GPDR2 &= ~SPITZ_GPIO_G2_STROBE_BIT; - GPDR3 &= ~SPITZ_GPIO_G3_STROBE_BIT; - GPCR(gpio) = GPIO_bit(gpio); - GPDR(gpio) |= GPIO_bit(gpio); -} - -static inline int spitzkbd_get_row_status(int col) -{ - return ((GPLR0 >> 12) & 0x01) | ((GPLR0 >> 16) & 0x02) - | ((GPLR2 >> 25) & 0x04) | ((GPLR1 << 1) & 0x08) - | ((GPLR1 >> 0) & 0x10) | ((GPLR1 >> 1) & 0x60); -} - -/* - * The spitz keyboard only generates interrupts when a key is pressed. - * When a key is pressed, we enable a timer which then scans the - * keyboard to detect when the key is released. - */ - -/* Scan the hardware keyboard and push any changes up through the input layer */ -static void spitzkbd_scankeyboard(struct spitzkbd *spitzkbd_data) -{ - unsigned int row, col, rowd; - unsigned long flags; - unsigned int num_pressed, pwrkey = ((GPLR(SPITZ_GPIO_ON_KEY) & GPIO_bit(SPITZ_GPIO_ON_KEY)) != 0); - - if (spitzkbd_data->suspended) - return; - - spin_lock_irqsave(&spitzkbd_data->lock, flags); - - num_pressed = 0; - for (col = 0; col < KB_COLS; col++) { - /* - * Discharge the output driver capacitatance - * in the keyboard matrix. (Yes it is significant..) - */ - - spitzkbd_discharge_all(); - udelay(KB_DISCHARGE_DELAY); - - spitzkbd_activate_col(col); - udelay(KB_ACTIVATE_DELAY); - - rowd = spitzkbd_get_row_status(col); - for (row = 0; row < KB_ROWS; row++) { - unsigned int scancode, pressed; - - scancode = SCANCODE(row, col); - pressed = rowd & KB_ROWMASK(row); - - input_report_key(spitzkbd_data->input, spitzkbd_data->keycode[scancode], pressed); - - if (pressed) - num_pressed++; - } - spitzkbd_reset_col(col); - } - - spitzkbd_activate_all(); - - input_report_key(spitzkbd_data->input, SPITZ_KEY_SYNC, (GPLR(SPITZ_GPIO_SYNC) & GPIO_bit(SPITZ_GPIO_SYNC)) != 0 ); - input_report_key(spitzkbd_data->input, KEY_SUSPEND, pwrkey); - - if (pwrkey && time_after(jiffies, spitzkbd_data->suspend_jiffies + msecs_to_jiffies(1000))) { - input_event(spitzkbd_data->input, EV_PWR, KEY_SUSPEND, 1); - spitzkbd_data->suspend_jiffies = jiffies; - } - - input_sync(spitzkbd_data->input); - - /* if any keys are pressed, enable the timer */ - if (num_pressed) - mod_timer(&spitzkbd_data->timer, jiffies + msecs_to_jiffies(SCAN_INTERVAL)); - - spin_unlock_irqrestore(&spitzkbd_data->lock, flags); -} - -/* - * spitz keyboard interrupt handler. - */ -static irqreturn_t spitzkbd_interrupt(int irq, void *dev_id) -{ - struct spitzkbd *spitzkbd_data = dev_id; - - if (!timer_pending(&spitzkbd_data->timer)) { - /** wait chattering delay **/ - udelay(20); - spitzkbd_scankeyboard(spitzkbd_data); - } - - return IRQ_HANDLED; -} - -/* - * spitz timer checking for released keys - */ -static void spitzkbd_timer_callback(unsigned long data) -{ - struct spitzkbd *spitzkbd_data = (struct spitzkbd *) data; - - spitzkbd_scankeyboard(spitzkbd_data); -} - -/* - * The hinge switches generate an interrupt. - * We debounce the switches and pass them to the input system. - */ - -static irqreturn_t spitzkbd_hinge_isr(int irq, void *dev_id) -{ - struct spitzkbd *spitzkbd_data = dev_id; - - if (!timer_pending(&spitzkbd_data->htimer)) - mod_timer(&spitzkbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL)); - - return IRQ_HANDLED; -} - -#define HINGE_STABLE_COUNT 2 -static int sharpsl_hinge_state; -static int hinge_count; - -static void spitzkbd_hinge_timer(unsigned long data) -{ - struct spitzkbd *spitzkbd_data = (struct spitzkbd *) data; - unsigned long state; - unsigned long flags; - - state = GPLR(SPITZ_GPIO_SWA) & (GPIO_bit(SPITZ_GPIO_SWA)|GPIO_bit(SPITZ_GPIO_SWB)); - state |= (GPLR(SPITZ_GPIO_AK_INT) & GPIO_bit(SPITZ_GPIO_AK_INT)); - if (state != sharpsl_hinge_state) { - hinge_count = 0; - sharpsl_hinge_state = state; - } else if (hinge_count < HINGE_STABLE_COUNT) { - hinge_count++; - } - - if (hinge_count >= HINGE_STABLE_COUNT) { - spin_lock_irqsave(&spitzkbd_data->lock, flags); - - input_report_switch(spitzkbd_data->input, SW_LID, ((GPLR(SPITZ_GPIO_SWA) & GPIO_bit(SPITZ_GPIO_SWA)) != 0)); - input_report_switch(spitzkbd_data->input, SW_TABLET_MODE, ((GPLR(SPITZ_GPIO_SWB) & GPIO_bit(SPITZ_GPIO_SWB)) != 0)); - input_report_switch(spitzkbd_data->input, SW_HEADPHONE_INSERT, ((GPLR(SPITZ_GPIO_AK_INT) & GPIO_bit(SPITZ_GPIO_AK_INT)) != 0)); - input_sync(spitzkbd_data->input); - - spin_unlock_irqrestore(&spitzkbd_data->lock, flags); - } else { - mod_timer(&spitzkbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL)); - } -} - -#ifdef CONFIG_PM -static int spitzkbd_suspend(struct platform_device *dev, pm_message_t state) -{ - int i; - struct spitzkbd *spitzkbd = platform_get_drvdata(dev); - spitzkbd->suspended = 1; - - /* Set Strobe lines as inputs - *except* strobe line 0 leave this - enabled so we can detect a power button press for resume */ - for (i = 1; i < SPITZ_KEY_STROBE_NUM; i++) - pxa_gpio_mode(spitz_strobes[i] | GPIO_IN); - - return 0; -} - -static int spitzkbd_resume(struct platform_device *dev) -{ - int i; - struct spitzkbd *spitzkbd = platform_get_drvdata(dev); - - for (i = 0; i < SPITZ_KEY_STROBE_NUM; i++) - pxa_gpio_mode(spitz_strobes[i] | GPIO_OUT | GPIO_DFLT_HIGH); - - /* Upon resume, ignore the suspend key for a short while */ - spitzkbd->suspend_jiffies = jiffies; - spitzkbd->suspended = 0; - - return 0; -} -#else -#define spitzkbd_suspend NULL -#define spitzkbd_resume NULL -#endif - -static int __devinit spitzkbd_probe(struct platform_device *dev) -{ - struct spitzkbd *spitzkbd; - struct input_dev *input_dev; - int i, err = -ENOMEM; - - spitzkbd = kzalloc(sizeof(struct spitzkbd), GFP_KERNEL); - input_dev = input_allocate_device(); - if (!spitzkbd || !input_dev) - goto fail; - - platform_set_drvdata(dev, spitzkbd); - strcpy(spitzkbd->phys, "spitzkbd/input0"); - - spin_lock_init(&spitzkbd->lock); - - /* Init Keyboard rescan timer */ - init_timer(&spitzkbd->timer); - spitzkbd->timer.function = spitzkbd_timer_callback; - spitzkbd->timer.data = (unsigned long) spitzkbd; - - /* Init Hinge Timer */ - init_timer(&spitzkbd->htimer); - spitzkbd->htimer.function = spitzkbd_hinge_timer; - spitzkbd->htimer.data = (unsigned long) spitzkbd; - - spitzkbd->suspend_jiffies = jiffies; - - spitzkbd->input = input_dev; - - input_dev->name = "Spitz Keyboard"; - input_dev->phys = spitzkbd->phys; - input_dev->dev.parent = &dev->dev; - - input_dev->id.bustype = BUS_HOST; - input_dev->id.vendor = 0x0001; - input_dev->id.product = 0x0001; - input_dev->id.version = 0x0100; - - input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | - BIT_MASK(EV_PWR) | BIT_MASK(EV_SW); - input_dev->keycode = spitzkbd->keycode; - input_dev->keycodesize = sizeof(unsigned char); - input_dev->keycodemax = ARRAY_SIZE(spitzkbd_keycode); - - memcpy(spitzkbd->keycode, spitzkbd_keycode, sizeof(spitzkbd->keycode)); - for (i = 0; i < ARRAY_SIZE(spitzkbd_keycode); i++) - set_bit(spitzkbd->keycode[i], input_dev->keybit); - clear_bit(0, input_dev->keybit); - set_bit(KEY_SUSPEND, input_dev->keybit); - set_bit(SW_LID, input_dev->swbit); - set_bit(SW_TABLET_MODE, input_dev->swbit); - set_bit(SW_HEADPHONE_INSERT, input_dev->swbit); - - err = input_register_device(input_dev); - if (err) - goto fail; - - mod_timer(&spitzkbd->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL)); - - /* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */ - for (i = 0; i < SPITZ_KEY_SENSE_NUM; i++) { - pxa_gpio_mode(spitz_senses[i] | GPIO_IN); - if (request_irq(IRQ_GPIO(spitz_senses[i]), spitzkbd_interrupt, - IRQF_DISABLED|IRQF_TRIGGER_RISING, - "Spitzkbd Sense", spitzkbd)) - printk(KERN_WARNING "spitzkbd: Can't get Sense IRQ: %d!\n", i); - } - - /* Set Strobe lines as outputs - set high */ - for (i = 0; i < SPITZ_KEY_STROBE_NUM; i++) - pxa_gpio_mode(spitz_strobes[i] | GPIO_OUT | GPIO_DFLT_HIGH); - - pxa_gpio_mode(SPITZ_GPIO_SYNC | GPIO_IN); - pxa_gpio_mode(SPITZ_GPIO_ON_KEY | GPIO_IN); - pxa_gpio_mode(SPITZ_GPIO_SWA | GPIO_IN); - pxa_gpio_mode(SPITZ_GPIO_SWB | GPIO_IN); - - request_irq(SPITZ_IRQ_GPIO_SYNC, spitzkbd_interrupt, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - "Spitzkbd Sync", spitzkbd); - request_irq(SPITZ_IRQ_GPIO_ON_KEY, spitzkbd_interrupt, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - "Spitzkbd PwrOn", spitzkbd); - request_irq(SPITZ_IRQ_GPIO_SWA, spitzkbd_hinge_isr, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - "Spitzkbd SWA", spitzkbd); - request_irq(SPITZ_IRQ_GPIO_SWB, spitzkbd_hinge_isr, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - "Spitzkbd SWB", spitzkbd); - request_irq(SPITZ_IRQ_GPIO_AK_INT, spitzkbd_hinge_isr, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - "Spitzkbd HP", spitzkbd); - - return 0; - - fail: input_free_device(input_dev); - kfree(spitzkbd); - return err; -} - -static int __devexit spitzkbd_remove(struct platform_device *dev) -{ - int i; - struct spitzkbd *spitzkbd = platform_get_drvdata(dev); - - for (i = 0; i < SPITZ_KEY_SENSE_NUM; i++) - free_irq(IRQ_GPIO(spitz_senses[i]), spitzkbd); - - free_irq(SPITZ_IRQ_GPIO_SYNC, spitzkbd); - free_irq(SPITZ_IRQ_GPIO_ON_KEY, spitzkbd); - free_irq(SPITZ_IRQ_GPIO_SWA, spitzkbd); - free_irq(SPITZ_IRQ_GPIO_SWB, spitzkbd); - free_irq(SPITZ_IRQ_GPIO_AK_INT, spitzkbd); - - del_timer_sync(&spitzkbd->htimer); - del_timer_sync(&spitzkbd->timer); - - input_unregister_device(spitzkbd->input); - - kfree(spitzkbd); - - return 0; -} - -static struct platform_driver spitzkbd_driver = { - .probe = spitzkbd_probe, - .remove = __devexit_p(spitzkbd_remove), - .suspend = spitzkbd_suspend, - .resume = spitzkbd_resume, - .driver = { - .name = "spitz-keyboard", - .owner = THIS_MODULE, - }, -}; - -static int __init spitzkbd_init(void) -{ - return platform_driver_register(&spitzkbd_driver); -} - -static void __exit spitzkbd_exit(void) -{ - platform_driver_unregister(&spitzkbd_driver); -} - -module_init(spitzkbd_init); -module_exit(spitzkbd_exit); - -MODULE_AUTHOR("Richard Purdie "); -MODULE_DESCRIPTION("Spitz Keyboard Driver"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:spitz-keyboard"); diff --git a/drivers/input/keyboard/tosakbd.c b/drivers/input/keyboard/tosakbd.c deleted file mode 100644 index 3910f269cfc..00000000000 --- a/drivers/input/keyboard/tosakbd.c +++ /dev/null @@ -1,431 +0,0 @@ -/* - * Keyboard driver for Sharp Tosa models (SL-6000x) - * - * Copyright (c) 2005 Dirk Opfer - * Copyright (c) 2007 Dmitry Baryshkov - * - * Based on xtkbd.c/locomkbd.c/corgikbd.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#define KB_ROWMASK(r) (1 << (r)) -#define SCANCODE(r, c) (((r)<<4) + (c) + 1) -#define NR_SCANCODES SCANCODE(TOSA_KEY_SENSE_NUM - 1, TOSA_KEY_STROBE_NUM - 1) + 1 - -#define SCAN_INTERVAL (HZ/10) - -#define KB_DISCHARGE_DELAY 10 -#define KB_ACTIVATE_DELAY 10 - -static unsigned short tosakbd_keycode[NR_SCANCODES] = { -0, -0, KEY_W, 0, 0, 0, KEY_K, KEY_BACKSPACE, KEY_P, -0, 0, 0, 0, 0, 0, 0, 0, -KEY_Q, KEY_E, KEY_T, KEY_Y, 0, KEY_O, KEY_I, KEY_COMMA, -0, 0, 0, 0, 0, 0, 0, 0, -KEY_A, KEY_D, KEY_G, KEY_U, 0, KEY_L, KEY_ENTER, KEY_DOT, -0, 0, 0, 0, 0, 0, 0, 0, -KEY_Z, KEY_C, KEY_V, KEY_J, TOSA_KEY_ADDRESSBOOK, TOSA_KEY_CANCEL, TOSA_KEY_CENTER, TOSA_KEY_OK, -KEY_LEFTSHIFT, 0, 0, 0, 0, 0, 0, 0, -KEY_S, KEY_R, KEY_B, KEY_N, TOSA_KEY_CALENDAR, TOSA_KEY_HOMEPAGE, KEY_LEFTCTRL, TOSA_KEY_LIGHT, -0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, -KEY_TAB, KEY_SLASH, KEY_H, KEY_M, TOSA_KEY_MENU, 0, KEY_UP, 0, -0, 0, TOSA_KEY_FN, 0, 0, 0, 0, 0, -KEY_X, KEY_F, KEY_SPACE, KEY_APOSTROPHE, TOSA_KEY_MAIL, KEY_LEFT, KEY_DOWN, KEY_RIGHT, -0, 0, 0, -}; - -struct tosakbd { - unsigned short keycode[ARRAY_SIZE(tosakbd_keycode)]; - struct input_dev *input; - bool suspended; - spinlock_t lock; /* protect kbd scanning */ - struct timer_list timer; -}; - - -/* Helper functions for reading the keyboard matrix - * Note: We should really be using the generic gpio functions to alter - * GPDR but it requires a function call per GPIO bit which is - * excessive when we need to access 12 bits at once, multiple times. - * These functions must be called within local_irq_save()/local_irq_restore() - * or similar. - */ -#define GET_ROWS_STATUS(c) ((GPLR2 & TOSA_GPIO_ALL_SENSE_BIT) >> TOSA_GPIO_ALL_SENSE_RSHIFT) - -static inline void tosakbd_discharge_all(void) -{ - /* STROBE All HiZ */ - GPCR1 = TOSA_GPIO_HIGH_STROBE_BIT; - GPDR1 &= ~TOSA_GPIO_HIGH_STROBE_BIT; - GPCR2 = TOSA_GPIO_LOW_STROBE_BIT; - GPDR2 &= ~TOSA_GPIO_LOW_STROBE_BIT; -} - -static inline void tosakbd_activate_all(void) -{ - /* STROBE ALL -> High */ - GPSR1 = TOSA_GPIO_HIGH_STROBE_BIT; - GPDR1 |= TOSA_GPIO_HIGH_STROBE_BIT; - GPSR2 = TOSA_GPIO_LOW_STROBE_BIT; - GPDR2 |= TOSA_GPIO_LOW_STROBE_BIT; - - udelay(KB_DISCHARGE_DELAY); - - /* STATE CLEAR */ - GEDR2 |= TOSA_GPIO_ALL_SENSE_BIT; -} - -static inline void tosakbd_activate_col(int col) -{ - if (col <= 5) { - /* STROBE col -> High, not col -> HiZ */ - GPSR1 = TOSA_GPIO_STROBE_BIT(col); - GPDR1 = (GPDR1 & ~TOSA_GPIO_HIGH_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col); - } else { - /* STROBE col -> High, not col -> HiZ */ - GPSR2 = TOSA_GPIO_STROBE_BIT(col); - GPDR2 = (GPDR2 & ~TOSA_GPIO_LOW_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col); - } -} - -static inline void tosakbd_reset_col(int col) -{ - if (col <= 5) { - /* STROBE col -> Low */ - GPCR1 = TOSA_GPIO_STROBE_BIT(col); - /* STROBE col -> out, not col -> HiZ */ - GPDR1 = (GPDR1 & ~TOSA_GPIO_HIGH_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col); - } else { - /* STROBE col -> Low */ - GPCR2 = TOSA_GPIO_STROBE_BIT(col); - /* STROBE col -> out, not col -> HiZ */ - GPDR2 = (GPDR2 & ~TOSA_GPIO_LOW_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col); - } -} -/* - * The tosa keyboard only generates interrupts when a key is pressed. - * So when a key is pressed, we enable a timer. This timer scans the - * keyboard, and this is how we detect when the key is released. - */ - -/* Scan the hardware keyboard and push any changes up through the input layer */ -static void tosakbd_scankeyboard(struct platform_device *dev) -{ - struct tosakbd *tosakbd = platform_get_drvdata(dev); - unsigned int row, col, rowd; - unsigned long flags; - unsigned int num_pressed = 0; - - spin_lock_irqsave(&tosakbd->lock, flags); - - if (tosakbd->suspended) - goto out; - - for (col = 0; col < TOSA_KEY_STROBE_NUM; col++) { - /* - * Discharge the output driver capacitatance - * in the keyboard matrix. (Yes it is significant..) - */ - tosakbd_discharge_all(); - udelay(KB_DISCHARGE_DELAY); - - tosakbd_activate_col(col); - udelay(KB_ACTIVATE_DELAY); - - rowd = GET_ROWS_STATUS(col); - - for (row = 0; row < TOSA_KEY_SENSE_NUM; row++) { - unsigned int scancode, pressed; - scancode = SCANCODE(row, col); - pressed = rowd & KB_ROWMASK(row); - - if (pressed && !tosakbd->keycode[scancode]) - dev_warn(&dev->dev, - "unhandled scancode: 0x%02x\n", - scancode); - - input_report_key(tosakbd->input, - tosakbd->keycode[scancode], - pressed); - if (pressed) - num_pressed++; - } - - tosakbd_reset_col(col); - } - - tosakbd_activate_all(); - - input_sync(tosakbd->input); - - /* if any keys are pressed, enable the timer */ - if (num_pressed) - mod_timer(&tosakbd->timer, jiffies + SCAN_INTERVAL); - - out: - spin_unlock_irqrestore(&tosakbd->lock, flags); -} - -/* - * tosa keyboard interrupt handler. - */ -static irqreturn_t tosakbd_interrupt(int irq, void *__dev) -{ - struct platform_device *dev = __dev; - struct tosakbd *tosakbd = platform_get_drvdata(dev); - - if (!timer_pending(&tosakbd->timer)) { - /** wait chattering delay **/ - udelay(20); - tosakbd_scankeyboard(dev); - } - - return IRQ_HANDLED; -} - -/* - * tosa timer checking for released keys - */ -static void tosakbd_timer_callback(unsigned long __dev) -{ - struct platform_device *dev = (struct platform_device *)__dev; - - tosakbd_scankeyboard(dev); -} - -#ifdef CONFIG_PM -static int tosakbd_suspend(struct platform_device *dev, pm_message_t state) -{ - struct tosakbd *tosakbd = platform_get_drvdata(dev); - unsigned long flags; - - spin_lock_irqsave(&tosakbd->lock, flags); - tosakbd->suspended = true; - spin_unlock_irqrestore(&tosakbd->lock, flags); - - del_timer_sync(&tosakbd->timer); - - return 0; -} - -static int tosakbd_resume(struct platform_device *dev) -{ - struct tosakbd *tosakbd = platform_get_drvdata(dev); - - tosakbd->suspended = false; - tosakbd_scankeyboard(dev); - - return 0; -} -#else -#define tosakbd_suspend NULL -#define tosakbd_resume NULL -#endif - -static int __devinit tosakbd_probe(struct platform_device *pdev) { - - int i; - struct tosakbd *tosakbd; - struct input_dev *input_dev; - int error; - - tosakbd = kzalloc(sizeof(struct tosakbd), GFP_KERNEL); - if (!tosakbd) - return -ENOMEM; - - input_dev = input_allocate_device(); - if (!input_dev) { - kfree(tosakbd); - return -ENOMEM; - } - - platform_set_drvdata(pdev, tosakbd); - - spin_lock_init(&tosakbd->lock); - - /* Init Keyboard rescan timer */ - init_timer(&tosakbd->timer); - tosakbd->timer.function = tosakbd_timer_callback; - tosakbd->timer.data = (unsigned long) pdev; - - tosakbd->input = input_dev; - - input_set_drvdata(input_dev, tosakbd); - input_dev->name = "Tosa Keyboard"; - input_dev->phys = "tosakbd/input0"; - input_dev->dev.parent = &pdev->dev; - - input_dev->id.bustype = BUS_HOST; - input_dev->id.vendor = 0x0001; - input_dev->id.product = 0x0001; - input_dev->id.version = 0x0100; - - input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); - input_dev->keycode = tosakbd->keycode; - input_dev->keycodesize = sizeof(tosakbd->keycode[0]); - input_dev->keycodemax = ARRAY_SIZE(tosakbd_keycode); - - memcpy(tosakbd->keycode, tosakbd_keycode, sizeof(tosakbd_keycode)); - - for (i = 0; i < ARRAY_SIZE(tosakbd_keycode); i++) - __set_bit(tosakbd->keycode[i], input_dev->keybit); - __clear_bit(KEY_RESERVED, input_dev->keybit); - - /* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */ - for (i = 0; i < TOSA_KEY_SENSE_NUM; i++) { - int gpio = TOSA_GPIO_KEY_SENSE(i); - int irq; - error = gpio_request(gpio, "tosakbd"); - if (error < 0) { - printk(KERN_ERR "tosakbd: failed to request GPIO %d, " - " error %d\n", gpio, error); - goto fail; - } - - error = gpio_direction_input(TOSA_GPIO_KEY_SENSE(i)); - if (error < 0) { - printk(KERN_ERR "tosakbd: failed to configure input" - " direction for GPIO %d, error %d\n", - gpio, error); - gpio_free(gpio); - goto fail; - } - - irq = gpio_to_irq(gpio); - if (irq < 0) { - error = irq; - printk(KERN_ERR "gpio-keys: Unable to get irq number" - " for GPIO %d, error %d\n", - gpio, error); - gpio_free(gpio); - goto fail; - } - - error = request_irq(irq, tosakbd_interrupt, - IRQF_DISABLED | IRQF_TRIGGER_RISING, - "tosakbd", pdev); - - if (error) { - printk("tosakbd: Can't get IRQ: %d: error %d!\n", - irq, error); - gpio_free(gpio); - goto fail; - } - } - - /* Set Strobe lines as outputs - set high */ - for (i = 0; i < TOSA_KEY_STROBE_NUM; i++) { - int gpio = TOSA_GPIO_KEY_STROBE(i); - error = gpio_request(gpio, "tosakbd"); - if (error < 0) { - printk(KERN_ERR "tosakbd: failed to request GPIO %d, " - " error %d\n", gpio, error); - goto fail2; - } - - error = gpio_direction_output(gpio, 1); - if (error < 0) { - printk(KERN_ERR "tosakbd: failed to configure input" - " direction for GPIO %d, error %d\n", - gpio, error); - gpio_free(gpio); - goto fail2; - } - - } - - error = input_register_device(input_dev); - if (error) { - printk(KERN_ERR "tosakbd: Unable to register input device, " - "error: %d\n", error); - goto fail2; - } - - printk(KERN_INFO "input: Tosa Keyboard Registered\n"); - - return 0; - -fail2: - while (--i >= 0) - gpio_free(TOSA_GPIO_KEY_STROBE(i)); - - i = TOSA_KEY_SENSE_NUM; -fail: - while (--i >= 0) { - free_irq(gpio_to_irq(TOSA_GPIO_KEY_SENSE(i)), pdev); - gpio_free(TOSA_GPIO_KEY_SENSE(i)); - } - - platform_set_drvdata(pdev, NULL); - input_free_device(input_dev); - kfree(tosakbd); - - return error; -} - -static int __devexit tosakbd_remove(struct platform_device *dev) -{ - int i; - struct tosakbd *tosakbd = platform_get_drvdata(dev); - - for (i = 0; i < TOSA_KEY_STROBE_NUM; i++) - gpio_free(TOSA_GPIO_KEY_STROBE(i)); - - for (i = 0; i < TOSA_KEY_SENSE_NUM; i++) { - free_irq(gpio_to_irq(TOSA_GPIO_KEY_SENSE(i)), dev); - gpio_free(TOSA_GPIO_KEY_SENSE(i)); - } - - del_timer_sync(&tosakbd->timer); - - input_unregister_device(tosakbd->input); - - kfree(tosakbd); - - return 0; -} - -static struct platform_driver tosakbd_driver = { - .probe = tosakbd_probe, - .remove = __devexit_p(tosakbd_remove), - .suspend = tosakbd_suspend, - .resume = tosakbd_resume, - .driver = { - .name = "tosa-keyboard", - .owner = THIS_MODULE, - }, -}; - -static int __devinit tosakbd_init(void) -{ - return platform_driver_register(&tosakbd_driver); -} - -static void __exit tosakbd_exit(void) -{ - platform_driver_unregister(&tosakbd_driver); -} - -module_init(tosakbd_init); -module_exit(tosakbd_exit); - -MODULE_AUTHOR("Dirk Opfer "); -MODULE_DESCRIPTION("Tosa Keyboard Driver"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:tosa-keyboard"); -- cgit v1.2.3-70-g09d2 From e938fbfd4a7ac829d48b767c4dc365535d5c4f97 Mon Sep 17 00:00:00 2001 From: Florian Ragwitz Date: Mon, 3 May 2010 23:29:37 -0700 Subject: Input: elantech - ignore high bits in the position coordinates In older versions of the elantech hardware/firmware those bits always were unset, so it didn't actually matter, but newer versions seem to use those high bits for something else, screwing up the coordinates we report to the input layer for those devices. Signed-off-by: Florian Ragwitz Signed-off-by: Dmitry Torokhov --- Documentation/input/elantech.txt | 8 ++--- drivers/input/mouse/elantech.c | 69 +++++++++++++++++++++++++--------------- 2 files changed, 48 insertions(+), 29 deletions(-) (limited to 'Documentation') diff --git a/Documentation/input/elantech.txt b/Documentation/input/elantech.txt index a10c3b6ba7c..56941ae1f5d 100644 --- a/Documentation/input/elantech.txt +++ b/Documentation/input/elantech.txt @@ -333,14 +333,14 @@ byte 0: byte 1: bit 7 6 5 4 3 2 1 0 - x15 x14 x13 x12 x11 x10 x9 x8 + . . . . . x10 x9 x8 byte 2: bit 7 6 5 4 3 2 1 0 x7 x6 x5 x4 x4 x2 x1 x0 - x15..x0 = absolute x value (horizontal) + x10..x0 = absolute x value (horizontal) byte 3: @@ -350,14 +350,14 @@ byte 3: byte 4: bit 7 6 5 4 3 2 1 0 - y15 y14 y13 y12 y11 y10 y8 y8 + . . . . . . y9 y8 byte 5: bit 7 6 5 4 3 2 1 0 y7 y6 y5 y4 y3 y2 y1 y0 - y15..y0 = absolute y value (vertical) + y9..y0 = absolute y value (vertical) 4.2.2 Two finger touch diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c index 095bd388c6d..2cbf3fc4729 100644 --- a/drivers/input/mouse/elantech.c +++ b/drivers/input/mouse/elantech.c @@ -185,13 +185,17 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse) static int old_fingers; if (etd->fw_version_maj == 0x01) { - /* byte 0: D U p1 p2 1 p3 R L - byte 1: f 0 th tw x9 x8 y9 y8 */ + /* + * byte 0: D U p1 p2 1 p3 R L + * byte 1: f 0 th tw x9 x8 y9 y8 + */ fingers = ((packet[1] & 0x80) >> 7) + ((packet[1] & 0x30) >> 4); } else { - /* byte 0: n1 n0 p2 p1 1 p3 R L - byte 1: 0 0 0 0 x9 x8 y9 y8 */ + /* + * byte 0: n1 n0 p2 p1 1 p3 R L + * byte 1: 0 0 0 0 x9 x8 y9 y8 + */ fingers = (packet[0] & 0xc0) >> 6; } @@ -205,13 +209,15 @@ static void elantech_report_absolute_v1(struct psmouse *psmouse) input_report_key(dev, BTN_TOUCH, fingers != 0); - /* byte 2: x7 x6 x5 x4 x3 x2 x1 x0 - byte 3: y7 y6 y5 y4 y3 y2 y1 y0 */ + /* + * byte 2: x7 x6 x5 x4 x3 x2 x1 x0 + * byte 3: y7 y6 y5 y4 y3 y2 y1 y0 + */ if (fingers) { input_report_abs(dev, ABS_X, ((packet[1] & 0x0c) << 6) | packet[2]); - input_report_abs(dev, ABS_Y, ETP_YMAX_V1 - - (((packet[1] & 0x03) << 8) | packet[3])); + input_report_abs(dev, ABS_Y, + ETP_YMAX_V1 - (((packet[1] & 0x03) << 8) | packet[3])); } input_report_key(dev, BTN_TOOL_FINGER, fingers == 1); @@ -250,34 +256,47 @@ static void elantech_report_absolute_v2(struct psmouse *psmouse) switch (fingers) { case 1: - /* byte 1: x15 x14 x13 x12 x11 x10 x9 x8 - byte 2: x7 x6 x5 x4 x4 x2 x1 x0 */ - input_report_abs(dev, ABS_X, (packet[1] << 8) | packet[2]); - /* byte 4: y15 y14 y13 y12 y11 y10 y8 y8 - byte 5: y7 y6 y5 y4 y3 y2 y1 y0 */ - input_report_abs(dev, ABS_Y, ETP_YMAX_V2 - - ((packet[4] << 8) | packet[5])); + /* + * byte 1: . . . . . x10 x9 x8 + * byte 2: x7 x6 x5 x4 x4 x2 x1 x0 + */ + input_report_abs(dev, ABS_X, + ((packet[1] & 0x07) << 8) | packet[2]); + /* + * byte 4: . . . . . . y9 y8 + * byte 5: y7 y6 y5 y4 y3 y2 y1 y0 + */ + input_report_abs(dev, ABS_Y, + ETP_YMAX_V2 - (((packet[4] & 0x03) << 8) | packet[5])); break; case 2: - /* The coordinate of each finger is reported separately with - a lower resolution for two finger touches */ - /* byte 0: . . ay8 ax8 . . . . - byte 1: ax7 ax6 ax5 ax4 ax3 ax2 ax1 ax0 */ + /* + * The coordinate of each finger is reported separately + * with a lower resolution for two finger touches: + * byte 0: . . ay8 ax8 . . . . + * byte 1: ax7 ax6 ax5 ax4 ax3 ax2 ax1 ax0 + */ x1 = ((packet[0] & 0x10) << 4) | packet[1]; /* byte 2: ay7 ay6 ay5 ay4 ay3 ay2 ay1 ay0 */ y1 = ETP_2FT_YMAX - (((packet[0] & 0x20) << 3) | packet[2]); - /* byte 3: . . by8 bx8 . . . . - byte 4: bx7 bx6 bx5 bx4 bx3 bx2 bx1 bx0 */ + /* + * byte 3: . . by8 bx8 . . . . + * byte 4: bx7 bx6 bx5 bx4 bx3 bx2 bx1 bx0 + */ x2 = ((packet[3] & 0x10) << 4) | packet[4]; /* byte 5: by7 by8 by5 by4 by3 by2 by1 by0 */ y2 = ETP_2FT_YMAX - (((packet[3] & 0x20) << 3) | packet[5]); - /* For compatibility with the X Synaptics driver scale up one - coordinate and report as ordinary mouse movent */ + /* + * For compatibility with the X Synaptics driver scale up + * one coordinate and report as ordinary mouse movent + */ input_report_abs(dev, ABS_X, x1 << 2); input_report_abs(dev, ABS_Y, y1 << 2); - /* For compatibility with the proprietary X Elantech driver - report both coordinates as hat coordinates */ + /* + * For compatibility with the proprietary X Elantech driver + * report both coordinates as hat coordinates + */ input_report_abs(dev, ABS_HAT0X, x1); input_report_abs(dev, ABS_HAT0Y, y1); input_report_abs(dev, ABS_HAT1X, x2); -- cgit v1.2.3-70-g09d2 From e4a7b9b04de15f6b63da5ccdd373ffa3057a3681 Mon Sep 17 00:00:00 2001 From: Wolfram Sang Date: Tue, 4 May 2010 11:09:27 +0200 Subject: i2c-core: Erase pointer to clientdata on removal After discovering that a lot of i2c-drivers leave the pointer to their clientdata dangling, it was decided to let the core handle this issue. It is assumed that the core may access the private data after remove() as there are no guarantees for the lifetime of such pointers anyhow (see thread starting at http://lkml.org/lkml/2010/3/21/68) Signed-off-by: Wolfram Sang Signed-off-by: Jean Delvare --- Documentation/i2c/writing-clients | 5 +++++ drivers/i2c/i2c-core.c | 8 ++++++-- 2 files changed, 11 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/i2c/writing-clients b/Documentation/i2c/writing-clients index 3219ee0dbfe..5ebf5af1d71 100644 --- a/Documentation/i2c/writing-clients +++ b/Documentation/i2c/writing-clients @@ -74,6 +74,11 @@ structure at all. You should use this to keep device-specific data. /* retrieve the value */ void *i2c_get_clientdata(const struct i2c_client *client); +Note that starting with kernel 2.6.34, you don't have to set the `data' field +to NULL in remove() or if probe() failed anymore. The i2c-core does this +automatically on these occasions. Those are also the only times the core will +touch this field. + Accessing the client ==================== diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index 3202a86f420..b9306b1a6ba 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -117,8 +117,10 @@ static int i2c_device_probe(struct device *dev) dev_dbg(dev, "probe\n"); status = driver->probe(client, i2c_match_id(driver->id_table, client)); - if (status) + if (status) { client->driver = NULL; + i2c_set_clientdata(client, NULL); + } return status; } @@ -139,8 +141,10 @@ static int i2c_device_remove(struct device *dev) dev->driver = NULL; status = 0; } - if (status == 0) + if (status == 0) { client->driver = NULL; + i2c_set_clientdata(client, NULL); + } return status; } -- cgit v1.2.3-70-g09d2 From 03d646e62b06e9364e2dbb939d67934c6c9826cd Mon Sep 17 00:00:00 2001 From: Li Zefan Date: Mon, 21 Dec 2009 14:27:24 +0800 Subject: tracing: Make the documentation clear on trace_event boot option Make it clear that event-list is a comma separated list of events. Reported-by: KOSAKI Motohiro Signed-off-by: Li Zefan LKML-Reference: <4B2F154C.2060503@cn.fujitsu.com> Signed-off-by: Steven Rostedt --- Documentation/trace/events.txt | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/trace/events.txt b/Documentation/trace/events.txt index 02ac6ed38b2..778ddf38b82 100644 --- a/Documentation/trace/events.txt +++ b/Documentation/trace/events.txt @@ -90,7 +90,8 @@ In order to facilitate early boot debugging, use boot option: trace_event=[event-list] -The format of this boot option is the same as described in section 2.1. +event-list is a comma separated list of events. See section 2.1 for event +format. 3. Defining an event-enabled tracepoint ======================================= -- cgit v1.2.3-70-g09d2 From a32fe93daf9c6b6ffbab1d9b9e2a8e4c335bda5c Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Tue, 27 Apr 2010 22:13:34 +0000 Subject: powerpc/4xx: Add optional "reset_type" property to control reboot via dts By setting "reset_type" to one of the following values, the default software reset mechanism may be overidden. Here the possible values of "reset_type": 1 - PPC4xx core reset 2 - PPC4xx chip reset 3 - PPC4xx system reset (default) This will be used by a new PPC440SPe board port, which needs a "chip reset" instead of the default "system reset" to be asserted. Signed-off-by: Stefan Roese Cc: Josh Boyer Cc: Benjamin Herrenschmidt Acked-by: Josh Boyer Signed-off-by: Josh Boyer --- Documentation/powerpc/dts-bindings/4xx/reboot.txt | 18 +++++++++++++++++ arch/powerpc/sysdev/ppc4xx_soc.c | 24 +++++++++++++++++++++-- 2 files changed, 40 insertions(+), 2 deletions(-) create mode 100644 Documentation/powerpc/dts-bindings/4xx/reboot.txt (limited to 'Documentation') diff --git a/Documentation/powerpc/dts-bindings/4xx/reboot.txt b/Documentation/powerpc/dts-bindings/4xx/reboot.txt new file mode 100644 index 00000000000..d7217260589 --- /dev/null +++ b/Documentation/powerpc/dts-bindings/4xx/reboot.txt @@ -0,0 +1,18 @@ +Reboot property to control system reboot on PPC4xx systems: + +By setting "reset_type" to one of the following values, the default +software reset mechanism may be overidden. Here the possible values of +"reset_type": + + 1 - PPC4xx core reset + 2 - PPC4xx chip reset + 3 - PPC4xx system reset (default) + +Example: + + cpu@0 { + device_type = "cpu"; + model = "PowerPC,440SPe"; + ... + reset-type = <2>; /* Use chip-reset */ + }; diff --git a/arch/powerpc/sysdev/ppc4xx_soc.c b/arch/powerpc/sysdev/ppc4xx_soc.c index 5c014350bf1..d3d6ce3c33b 100644 --- a/arch/powerpc/sysdev/ppc4xx_soc.c +++ b/arch/powerpc/sysdev/ppc4xx_soc.c @@ -191,11 +191,31 @@ static int __init ppc4xx_l2c_probe(void) arch_initcall(ppc4xx_l2c_probe); /* - * At present, this routine just applies a system reset. + * Apply a system reset. Alternatively a board specific value may be + * provided via the "reset-type" property in the cpu node. */ void ppc4xx_reset_system(char *cmd) { - mtspr(SPRN_DBCR0, mfspr(SPRN_DBCR0) | DBCR0_RST_SYSTEM); + struct device_node *np; + u32 reset_type = DBCR0_RST_SYSTEM; + const u32 *prop; + + np = of_find_node_by_type(NULL, "cpu"); + if (np) { + prop = of_get_property(np, "reset-type", NULL); + + /* + * Check if property exists and if it is in range: + * 1 - PPC4xx core reset + * 2 - PPC4xx chip reset + * 3 - PPC4xx system reset (default) + */ + if ((prop) && ((prop[0] >= 1) && (prop[0] <= 3))) + reset_type = prop[0] << 28; + } + + mtspr(SPRN_DBCR0, mfspr(SPRN_DBCR0) | reset_type); + while (1) ; /* Just in case the reset doesn't work */ } -- cgit v1.2.3-70-g09d2 From 40868c85b8dfe233192f29099f45348f5b363ce9 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Wed, 5 May 2010 17:27:10 +0400 Subject: libata: Fix several inaccuracies in developer's guide Commit 6bfff31e77cfa1b13490337e5a4dbaa3407e83ac (libata: kill probe_ent and related helpers) killed ata_device_add() but didn't remove references to it from the libata developer's guide. Commits 9363c3825ea9ad76561eb48a395349dd29211ed6 (libata: rename SFF functions) and 5682ed33aae05d10a25c95633ef9d9c062825888 (libata: rename SFF port ops) renamed the taskfile access methods but didn't update the developer's guide. Commit c9f75b04ed5ed65a058d18a8a8dda50632a96de8 (libata: kill ata_noop_dev_select()) didn't update the developer's guide as well. The guide also refers to the long gone ata_pio_data_xfer_noirq(), ata_pio_data_xfer(), and ata_mmio_data_xfer() -- replace those by the modern ata_sff_data_xfer_noirq(), ata_sff_data_xfer(), and ata_sff_data_xfer32(). Also, remove the reference to non-existant ata_port_stop()... Signed-off-by: Sergei Shtylyov Signed-off-by: Jeff Garzik --- Documentation/DocBook/libata.tmpl | 49 +++++++++++++-------------------------- 1 file changed, 16 insertions(+), 33 deletions(-) (limited to 'Documentation') diff --git a/Documentation/DocBook/libata.tmpl b/Documentation/DocBook/libata.tmpl index ba997577150..ff3e5bec1c2 100644 --- a/Documentation/DocBook/libata.tmpl +++ b/Documentation/DocBook/libata.tmpl @@ -107,10 +107,6 @@ void (*dev_config) (struct ata_port *, struct ata_device *); issue of SET FEATURES - XFER MODE, and prior to operation. - Called by ata_device_add() after ata_dev_identify() determines - a device is present. - - This entry may be specified as NULL in ata_port_operations. @@ -154,8 +150,8 @@ unsigned int (*mode_filter) (struct ata_port *, struct ata_device *, unsigned in Taskfile read/write -void (*tf_load) (struct ata_port *ap, struct ata_taskfile *tf); -void (*tf_read) (struct ata_port *ap, struct ata_taskfile *tf); +void (*sff_tf_load) (struct ata_port *ap, struct ata_taskfile *tf); +void (*sff_tf_read) (struct ata_port *ap, struct ata_taskfile *tf); @@ -164,36 +160,35 @@ void (*tf_read) (struct ata_port *ap, struct ata_taskfile *tf); hardware registers / DMA buffers, to obtain the current set of taskfile register values. Most drivers for taskfile-based hardware (PIO or MMIO) use - ata_tf_load() and ata_tf_read() for these hooks. + ata_sff_tf_load() and ata_sff_tf_read() for these hooks. PIO data read/write -void (*data_xfer) (struct ata_device *, unsigned char *, unsigned int, int); +void (*sff_data_xfer) (struct ata_device *, unsigned char *, unsigned int, int); All bmdma-style drivers must implement this hook. This is the low-level operation that actually copies the data bytes during a PIO data transfer. -Typically the driver -will choose one of ata_pio_data_xfer_noirq(), ata_pio_data_xfer(), or -ata_mmio_data_xfer(). +Typically the driver will choose one of ata_sff_data_xfer_noirq(), +ata_sff_data_xfer(), or ata_sff_data_xfer32(). ATA command execute -void (*exec_command)(struct ata_port *ap, struct ata_taskfile *tf); +void (*sff_exec_command)(struct ata_port *ap, struct ata_taskfile *tf); causes an ATA command, previously loaded with ->tf_load(), to be initiated in hardware. - Most drivers for taskfile-based hardware use ata_exec_command() + Most drivers for taskfile-based hardware use ata_sff_exec_command() for this hook. @@ -218,8 +213,8 @@ command. Read specific ATA shadow registers -u8 (*check_status)(struct ata_port *ap); -u8 (*check_altstatus)(struct ata_port *ap); +u8 (*sff_check_status)(struct ata_port *ap); +u8 (*sff_check_altstatus)(struct ata_port *ap); @@ -227,20 +222,14 @@ u8 (*check_altstatus)(struct ata_port *ap); hardware. On some hardware, reading the Status register has the side effect of clearing the interrupt condition. Most drivers for taskfile-based hardware use - ata_check_status() for this hook. - - - Note that because this is called from ata_device_add(), at - least a dummy function that clears device interrupts must be - provided for all drivers, even if the controller doesn't - actually have a taskfile status register. + ata_sff_check_status() for this hook. Select ATA device on bus -void (*dev_select)(struct ata_port *ap, unsigned int device); +void (*sff_dev_select)(struct ata_port *ap, unsigned int device); @@ -251,9 +240,7 @@ void (*dev_select)(struct ata_port *ap, unsigned int device); Most drivers for taskfile-based hardware use - ata_std_dev_select() for this hook. Controllers which do not - support second drives on a port (such as SATA contollers) will - use ata_noop_dev_select(). + ata_sff_dev_select() for this hook. @@ -441,13 +428,13 @@ void (*irq_clear) (struct ata_port *); to struct ata_host_set. - Most legacy IDE drivers use ata_interrupt() for the + Most legacy IDE drivers use ata_sff_interrupt() for the irq_handler hook, which scans all ports in the host_set, determines which queued command was active (if any), and calls - ata_host_intr(ap,qc). + ata_sff_host_intr(ap,qc). - Most legacy IDE drivers use ata_bmdma_irq_clear() for the + Most legacy IDE drivers use ata_sff_irq_clear() for the irq_clear() hook, which simply clears the interrupt and error flags in the DMA status register. @@ -496,10 +483,6 @@ void (*host_stop) (struct ata_host_set *host_set); data from port at this time. - Many drivers use ata_port_stop() as this hook, which frees the - PRD table. - - ->host_stop() is called after all ->port_stop() calls have completed. The hook must finalize hardware shutdown, release DMA and other resources, etc. -- cgit v1.2.3-70-g09d2 From d02f00cc057809d96c044cc72d5b9809d59f7d49 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Mon, 7 Dec 2009 13:10:48 -0800 Subject: ocfs2: allocation reservations This patch improves Ocfs2 allocation policy by allowing an inode to reserve a portion of the local alloc bitmap for itself. The reserved portion (allocation window) is advisory in that other allocation windows might steal it if the local alloc bitmap becomes full. Otherwise, the reservations are honored and guaranteed to be free. When the local alloc window is moved to a different portion of the bitmap, existing reservations are discarded. Reservation windows are represented internally by a red-black tree. Within that tree, each node represents the reservation window of one inode. An LRU of active reservations is also maintained. When new data is written, we allocate it from the inodes window. When all bits in a window are exhausted, we allocate a new one as close to the previous one as possible. Should we not find free space, an existing reservation is pulled off the LRU and cannibalized. Signed-off-by: Mark Fasheh --- Documentation/filesystems/ocfs2.txt | 3 + fs/ocfs2/Makefile | 1 + fs/ocfs2/cluster/masklog.c | 1 + fs/ocfs2/cluster/masklog.h | 1 + fs/ocfs2/localalloc.c | 64 ++- fs/ocfs2/ocfs2.h | 5 + fs/ocfs2/reservations.c | 849 ++++++++++++++++++++++++++++++++++++ fs/ocfs2/reservations.h | 154 +++++++ fs/ocfs2/suballoc.h | 2 + fs/ocfs2/super.c | 25 ++ 10 files changed, 1094 insertions(+), 11 deletions(-) create mode 100644 fs/ocfs2/reservations.c create mode 100644 fs/ocfs2/reservations.h (limited to 'Documentation') diff --git a/Documentation/filesystems/ocfs2.txt b/Documentation/filesystems/ocfs2.txt index c58b9f5ba00..412df909593 100644 --- a/Documentation/filesystems/ocfs2.txt +++ b/Documentation/filesystems/ocfs2.txt @@ -80,3 +80,6 @@ user_xattr (*) Enables Extended User Attributes. nouser_xattr Disables Extended User Attributes. acl Enables POSIX Access Control Lists support. noacl (*) Disables POSIX Access Control Lists support. +resv_level=4 (*) Set how agressive allocation reservations will be. + Valid values are between 0 (reservations off) to 8 + (maximum space for reservations). diff --git a/fs/ocfs2/Makefile b/fs/ocfs2/Makefile index 791c0886c06..07d9fd85435 100644 --- a/fs/ocfs2/Makefile +++ b/fs/ocfs2/Makefile @@ -29,6 +29,7 @@ ocfs2-objs := \ mmap.o \ namei.o \ refcounttree.o \ + reservations.o \ resize.o \ slot_map.o \ suballoc.o \ diff --git a/fs/ocfs2/cluster/masklog.c b/fs/ocfs2/cluster/masklog.c index 3bb928a2bf7..c7fba396392 100644 --- a/fs/ocfs2/cluster/masklog.c +++ b/fs/ocfs2/cluster/masklog.c @@ -116,6 +116,7 @@ static struct mlog_attribute mlog_attrs[MLOG_MAX_BITS] = { define_mask(ERROR), define_mask(NOTICE), define_mask(KTHREAD), + define_mask(RESERVATIONS), }; static struct attribute *mlog_attr_ptrs[MLOG_MAX_BITS] = {NULL, }; diff --git a/fs/ocfs2/cluster/masklog.h b/fs/ocfs2/cluster/masklog.h index 3dfddbec32f..fd96e2a2fa5 100644 --- a/fs/ocfs2/cluster/masklog.h +++ b/fs/ocfs2/cluster/masklog.h @@ -119,6 +119,7 @@ #define ML_ERROR 0x0000000100000000ULL /* sent to KERN_ERR */ #define ML_NOTICE 0x0000000200000000ULL /* setn to KERN_NOTICE */ #define ML_KTHREAD 0x0000000400000000ULL /* kernel thread activity */ +#define ML_RESERVATIONS 0x0000000800000000ULL /* ocfs2 alloc reservations */ #define MLOG_INITIAL_AND_MASK (ML_ERROR|ML_NOTICE) #define MLOG_INITIAL_NOT_MASK (ML_ENTRY|ML_EXIT) diff --git a/fs/ocfs2/localalloc.c b/fs/ocfs2/localalloc.c index 7e7dd65d97e..7fe8149a000 100644 --- a/fs/ocfs2/localalloc.c +++ b/fs/ocfs2/localalloc.c @@ -52,7 +52,8 @@ static u32 ocfs2_local_alloc_count_bits(struct ocfs2_dinode *alloc); static int ocfs2_local_alloc_find_clear_bits(struct ocfs2_super *osb, struct ocfs2_dinode *alloc, - u32 numbits); + u32 *numbits, + struct ocfs2_alloc_reservation *resv); static void ocfs2_clear_local_alloc(struct ocfs2_dinode *alloc); @@ -262,6 +263,8 @@ void ocfs2_shutdown_local_alloc(struct ocfs2_super *osb) osb->local_alloc_state = OCFS2_LA_DISABLED; + ocfs2_resmap_uninit(&osb->osb_la_resmap); + main_bm_inode = ocfs2_get_system_file_inode(osb, GLOBAL_BITMAP_SYSTEM_INODE, OCFS2_INVALID_SLOT); @@ -493,7 +496,7 @@ static int ocfs2_local_alloc_in_range(struct inode *inode, alloc = (struct ocfs2_dinode *) osb->local_alloc_bh->b_data; la = OCFS2_LOCAL_ALLOC(alloc); - start = ocfs2_local_alloc_find_clear_bits(osb, alloc, bits_wanted); + start = ocfs2_local_alloc_find_clear_bits(osb, alloc, &bits_wanted, NULL); if (start == -1) { mlog_errno(-ENOSPC); return 0; @@ -659,7 +662,8 @@ int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb, alloc = (struct ocfs2_dinode *) osb->local_alloc_bh->b_data; la = OCFS2_LOCAL_ALLOC(alloc); - start = ocfs2_local_alloc_find_clear_bits(osb, alloc, bits_wanted); + start = ocfs2_local_alloc_find_clear_bits(osb, alloc, &bits_wanted, + ac->ac_resv); if (start == -1) { /* TODO: Shouldn't we just BUG here? */ status = -ENOSPC; @@ -669,8 +673,6 @@ int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb, bitmap = la->la_bitmap; *bit_off = le32_to_cpu(la->la_bm_off) + start; - /* local alloc is always contiguous by nature -- we never - * delete bits from it! */ *num_bits = bits_wanted; status = ocfs2_journal_access_di(handle, @@ -682,6 +684,9 @@ int ocfs2_claim_local_alloc_bits(struct ocfs2_super *osb, goto bail; } + ocfs2_resmap_claimed_bits(&osb->osb_la_resmap, ac->ac_resv, start, + bits_wanted); + while(bits_wanted--) ocfs2_set_bit(start++, bitmap); @@ -711,13 +716,17 @@ static u32 ocfs2_local_alloc_count_bits(struct ocfs2_dinode *alloc) } static int ocfs2_local_alloc_find_clear_bits(struct ocfs2_super *osb, - struct ocfs2_dinode *alloc, - u32 numbits) + struct ocfs2_dinode *alloc, + u32 *numbits, + struct ocfs2_alloc_reservation *resv) { int numfound, bitoff, left, startoff, lastzero; + int local_resv = 0; + struct ocfs2_alloc_reservation r; void *bitmap = NULL; + struct ocfs2_reservation_map *resmap = &osb->osb_la_resmap; - mlog_entry("(numbits wanted = %u)\n", numbits); + mlog_entry("(numbits wanted = %u)\n", *numbits); if (!alloc->id1.bitmap1.i_total) { mlog(0, "No bits in my window!\n"); @@ -725,6 +734,30 @@ static int ocfs2_local_alloc_find_clear_bits(struct ocfs2_super *osb, goto bail; } + if (!resv) { + local_resv = 1; + ocfs2_resv_init_once(&r); + ocfs2_resv_set_type(&r, OCFS2_RESV_FLAG_TMP); + resv = &r; + } + + numfound = *numbits; + if (ocfs2_resmap_resv_bits(resmap, resv, &bitoff, &numfound) == 0) { + if (numfound < *numbits) + *numbits = numfound; + goto bail; + } + + /* + * Code error. While reservations are enabled, local + * allocation should _always_ go through them. + */ + BUG_ON(osb->osb_resv_level != 0); + + /* + * Reservations are disabled. Handle this the old way. + */ + bitmap = OCFS2_LOCAL_ALLOC(alloc)->la_bitmap; numfound = bitoff = startoff = 0; @@ -750,7 +783,7 @@ static int ocfs2_local_alloc_find_clear_bits(struct ocfs2_super *osb, startoff = bitoff+1; } /* we got everything we needed */ - if (numfound == numbits) { + if (numfound == *numbits) { /* mlog(0, "Found it all!\n"); */ break; } @@ -759,12 +792,18 @@ static int ocfs2_local_alloc_find_clear_bits(struct ocfs2_super *osb, mlog(0, "Exiting loop, bitoff = %d, numfound = %d\n", bitoff, numfound); - if (numfound == numbits) + if (numfound == *numbits) { bitoff = startoff - numfound; - else + *numbits = numfound; + } else { + numfound = 0; bitoff = -1; + } bail: + if (local_resv) + ocfs2_resv_discard(resmap, resv); + mlog_exit(bitoff); return bitoff; } @@ -1087,6 +1126,9 @@ retry_enospc: memset(OCFS2_LOCAL_ALLOC(alloc)->la_bitmap, 0, le16_to_cpu(la->la_size)); + ocfs2_resmap_restart(&osb->osb_la_resmap, cluster_count, + OCFS2_LOCAL_ALLOC(alloc)->la_bitmap); + mlog(0, "New window allocated:\n"); mlog(0, "window la_bm_off = %u\n", OCFS2_LOCAL_ALLOC(alloc)->la_bm_off); diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index adf5e2ebc2c..9552560df6c 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -47,6 +47,7 @@ /* For struct ocfs2_blockcheck_stats */ #include "blockcheck.h" +#include "reservations.h" /* Caching of metadata buffers */ @@ -349,6 +350,10 @@ struct ocfs2_super u64 la_last_gd; + struct ocfs2_reservation_map osb_la_resmap; + + unsigned int osb_resv_level; + /* Next three fields are for local node slot recovery during * mount. */ int dirty; diff --git a/fs/ocfs2/reservations.c b/fs/ocfs2/reservations.c new file mode 100644 index 00000000000..79642d60821 --- /dev/null +++ b/fs/ocfs2/reservations.c @@ -0,0 +1,849 @@ +/* -*- mode: c; c-basic-offset: 8; -*- + * vim: noexpandtab sw=8 ts=8 sts=0: + * + * reservations.c + * + * Allocation reservations implementation + * + * Some code borrowed from fs/ext3/balloc.c and is: + * + * Copyright (C) 1992, 1993, 1994, 1995 + * Remy Card (card@masi.ibp.fr) + * Laboratoire MASI - Institut Blaise Pascal + * Universite Pierre et Marie Curie (Paris VI) + * + * The rest is copyright (C) 2010 Novell. All rights reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#include +#include +#include +#include +#include +#include + +#define MLOG_MASK_PREFIX ML_RESERVATIONS +#include + +#include "ocfs2.h" + +#ifdef CONFIG_OCFS2_DEBUG_FS +#define OCFS2_CHECK_RESERVATIONS +#endif + +DEFINE_SPINLOCK(resv_lock); + +#define OCFS2_MIN_RESV_WINDOW_BITS 8 +#define OCFS2_MAX_RESV_WINDOW_BITS 1024 + +static unsigned int ocfs2_resv_window_bits(struct ocfs2_reservation_map *resmap, + struct ocfs2_alloc_reservation *resv) +{ + struct ocfs2_super *osb = resmap->m_osb; + unsigned int bits; + + /* 8, 16, 32, 64, 128, 256, 512, 1024 */ + bits = 4 << osb->osb_resv_level; + + return bits; +} + +static inline unsigned int ocfs2_resv_end(struct ocfs2_alloc_reservation *resv) +{ + if (resv->r_len) + return resv->r_start + resv->r_len - 1; + return resv->r_start; +} + +static inline int ocfs2_resv_empty(struct ocfs2_alloc_reservation *resv) +{ + return !!(resv->r_len == 0); +} + +static inline int ocfs2_resmap_disabled(struct ocfs2_reservation_map *resmap) +{ + if (resmap->m_osb->osb_resv_level == 0) + return 1; + return 0; +} + +static void ocfs2_dump_resv(struct ocfs2_reservation_map *resmap) +{ + struct ocfs2_super *osb = resmap->m_osb; + struct rb_node *node; + struct ocfs2_alloc_reservation *resv; + int i = 0; + + mlog(ML_NOTICE, "Dumping resmap for device %s. Bitmap length: %u\n", + osb->dev_str, resmap->m_bitmap_len); + + node = rb_first(&resmap->m_reservations); + while (node) { + resv = rb_entry(node, struct ocfs2_alloc_reservation, r_node); + + mlog(ML_NOTICE, "start: %u\tend: %u\tlen: %u\tlast_start: %u" + "\tlast_len: %u\n", resv->r_start, + ocfs2_resv_end(resv), resv->r_len, resv->r_last_start, + resv->r_last_len); + + node = rb_next(node); + i++; + } + + mlog(ML_NOTICE, "%d reservations found. LRU follows\n", i); + + i = 0; + list_for_each_entry(resv, &resmap->m_lru, r_lru) { + mlog(ML_NOTICE, "LRU(%d) start: %u\tend: %u\tlen: %u\t" + "last_start: %u\tlast_len: %u\n", i, resv->r_start, + ocfs2_resv_end(resv), resv->r_len, resv->r_last_start, + resv->r_last_len); + + i++; + } +} + +#ifdef OCFS2_CHECK_RESERVATIONS +static int ocfs2_validate_resmap_bits(struct ocfs2_reservation_map *resmap, + int i, + struct ocfs2_alloc_reservation *resv) +{ + char *disk_bitmap = resmap->m_disk_bitmap; + unsigned int start = resv->r_start; + unsigned int end = ocfs2_resv_end(resv); + + while (start <= end) { + if (ocfs2_test_bit(start, disk_bitmap)) { + mlog(ML_ERROR, + "reservation %d covers an allocated area " + "starting at bit %u!\n", i, start); + return 1; + } + + start++; + } + return 0; +} + +static void ocfs2_check_resmap(struct ocfs2_reservation_map *resmap) +{ + unsigned int off = 0; + int i = 0; + struct rb_node *node; + struct ocfs2_alloc_reservation *resv; + + node = rb_first(&resmap->m_reservations); + while (node) { + resv = rb_entry(node, struct ocfs2_alloc_reservation, r_node); + + if (i > 0 && resv->r_start <= off) { + mlog(ML_ERROR, "reservation %d has bad start off!\n", + i); + goto bad; + } + + if (resv->r_len == 0) { + mlog(ML_ERROR, "reservation %d has no length!\n", + i); + goto bad; + } + + if (resv->r_start > ocfs2_resv_end(resv)) { + mlog(ML_ERROR, "reservation %d has invalid range!\n", + i); + goto bad; + } + + if (ocfs2_resv_end(resv) >= resmap->m_bitmap_len) { + mlog(ML_ERROR, "reservation %d extends past bitmap!\n", + i); + goto bad; + } + + if (ocfs2_validate_resmap_bits(resmap, i, resv)) + goto bad; + + off = ocfs2_resv_end(resv); + node = rb_next(node); + + i++; + } + return; + +bad: + ocfs2_dump_resv(resmap); + BUG(); +} +#else +static inline void ocfs2_check_resmap(struct ocfs2_reservation_map *resmap) +{ + +} +#endif + +void ocfs2_resv_init_once(struct ocfs2_alloc_reservation *resv) +{ + memset(resv, 0, sizeof(*resv)); + INIT_LIST_HEAD(&resv->r_lru); +} + +void ocfs2_resv_set_type(struct ocfs2_alloc_reservation *resv, + unsigned int flags) +{ + BUG_ON(flags & ~OCFS2_RESV_TYPES); + + resv->r_flags |= flags; +} + +int ocfs2_resmap_init(struct ocfs2_super *osb, + struct ocfs2_reservation_map *resmap) +{ + memset(resmap, 0, sizeof(*resmap)); + + resmap->m_osb = osb; + resmap->m_reservations = RB_ROOT; + /* m_bitmap_len is initialized to zero by the above memset. */ + INIT_LIST_HEAD(&resmap->m_lru); + + return 0; +} + +static void ocfs2_resv_mark_lru(struct ocfs2_reservation_map *resmap, + struct ocfs2_alloc_reservation *resv) +{ + assert_spin_locked(&resv_lock); + + if (!list_empty(&resv->r_lru)) + list_del_init(&resv->r_lru); + + list_add_tail(&resv->r_lru, &resmap->m_lru); +} + +static void __ocfs2_resv_trunc(struct ocfs2_alloc_reservation *resv) +{ + resv->r_len = 0; + resv->r_start = 0; +} + +static void ocfs2_resv_remove(struct ocfs2_reservation_map *resmap, + struct ocfs2_alloc_reservation *resv) +{ + if (resv->r_flags & OCFS2_RESV_FLAG_INUSE) { + list_del_init(&resv->r_lru); + rb_erase(&resv->r_node, &resmap->m_reservations); + resv->r_flags &= ~OCFS2_RESV_FLAG_INUSE; + } +} + +static void __ocfs2_resv_discard(struct ocfs2_reservation_map *resmap, + struct ocfs2_alloc_reservation *resv) +{ + assert_spin_locked(&resv_lock); + + __ocfs2_resv_trunc(resv); + /* + * last_len and last_start no longer make sense if + * we're changing the range of our allocations. + */ + resv->r_last_len = resv->r_last_start = 0; + + ocfs2_resv_remove(resmap, resv); +} + +/* does nothing if 'resv' is null */ +void ocfs2_resv_discard(struct ocfs2_reservation_map *resmap, + struct ocfs2_alloc_reservation *resv) +{ + if (resv) { + spin_lock(&resv_lock); + __ocfs2_resv_discard(resmap, resv); + spin_unlock(&resv_lock); + } +} + +static void ocfs2_resmap_clear_all_resv(struct ocfs2_reservation_map *resmap) +{ + struct rb_node *node; + struct ocfs2_alloc_reservation *resv; + + assert_spin_locked(&resv_lock); + + while ((node = rb_last(&resmap->m_reservations)) != NULL) { + resv = rb_entry(node, struct ocfs2_alloc_reservation, r_node); + + __ocfs2_resv_discard(resmap, resv); + } +} + +void ocfs2_resmap_restart(struct ocfs2_reservation_map *resmap, + unsigned int clen, char *disk_bitmap) +{ + if (ocfs2_resmap_disabled(resmap)) + return; + + spin_lock(&resv_lock); + + ocfs2_resmap_clear_all_resv(resmap); + resmap->m_bitmap_len = clen; + resmap->m_disk_bitmap = disk_bitmap; + + spin_unlock(&resv_lock); +} + +void ocfs2_resmap_uninit(struct ocfs2_reservation_map *resmap) +{ + /* Does nothing for now. Keep this around for API symmetry */ +} + +static void ocfs2_resv_insert(struct ocfs2_reservation_map *resmap, + struct ocfs2_alloc_reservation *new) +{ + struct rb_root *root = &resmap->m_reservations; + struct rb_node *parent = NULL; + struct rb_node **p = &root->rb_node; + struct ocfs2_alloc_reservation *tmp; + + assert_spin_locked(&resv_lock); + + mlog(0, "Insert reservation start: %u len: %u\n", new->r_start, + new->r_len); + + while (*p) { + parent = *p; + + tmp = rb_entry(parent, struct ocfs2_alloc_reservation, r_node); + + if (new->r_start < tmp->r_start) { + p = &(*p)->rb_left; + + /* + * This is a good place to check for + * overlapping reservations. + */ + BUG_ON(ocfs2_resv_end(new) >= tmp->r_start); + } else if (new->r_start > ocfs2_resv_end(tmp)) { + p = &(*p)->rb_right; + } else { + /* This should never happen! */ + mlog(ML_ERROR, "Duplicate reservation window!\n"); + BUG(); + } + } + + rb_link_node(&new->r_node, parent, p); + rb_insert_color(&new->r_node, root); + new->r_flags |= OCFS2_RESV_FLAG_INUSE; + + ocfs2_resv_mark_lru(resmap, new); + + ocfs2_check_resmap(resmap); +} + +/** + * ocfs2_find_resv_lhs() - find the window which contains goal + * @resmap: reservation map to search + * @goal: which bit to search for + * + * If a window containing that goal is not found, we return the window + * which comes before goal. Returns NULL on empty rbtree or no window + * before goal. + */ +static struct ocfs2_alloc_reservation * +ocfs2_find_resv_lhs(struct ocfs2_reservation_map *resmap, unsigned int goal) +{ + struct ocfs2_alloc_reservation *resv = NULL; + struct ocfs2_alloc_reservation *prev_resv = NULL; + struct rb_node *node = resmap->m_reservations.rb_node; + struct rb_node *prev = NULL; + + assert_spin_locked(&resv_lock); + + if (!node) + return NULL; + + node = rb_first(&resmap->m_reservations); + while (node) { + resv = rb_entry(node, struct ocfs2_alloc_reservation, r_node); + + if (resv->r_start <= goal && ocfs2_resv_end(resv) >= goal) + break; + + /* Check if we overshot the reservation just before goal? */ + if (resv->r_start > goal) { + resv = prev_resv; + break; + } + + prev_resv = resv; + prev = node; + node = rb_next(node); + } + + return resv; +} + +/* + * We are given a range within the bitmap, which corresponds to a gap + * inside the reservations tree (search_start, search_len). The range + * can be anything from the whole bitmap, to a gap between + * reservations. + * + * The start value of *rstart is insignificant. + * + * This function searches the bitmap range starting at search_start + * with length csearch_len for a set of contiguous free bits. We try + * to find up to 'wanted' bits, but can sometimes return less. + * + * Returns the length of allocation, 0 if no free bits are found. + * + * *cstart and *clen will also be populated with the result. + */ +static int ocfs2_resmap_find_free_bits(struct ocfs2_reservation_map *resmap, + unsigned int wanted, + unsigned int search_start, + unsigned int search_len, + unsigned int *rstart, + unsigned int *rlen) +{ + void *bitmap = resmap->m_disk_bitmap; + unsigned int best_start, best_len = 0; + int offset, start, found; + + mlog(0, "Find %u bits within range (%u, len %u) resmap len: %u\n", + wanted, search_start, search_len, resmap->m_bitmap_len); + + found = best_start = best_len = 0; + + start = search_start; + while ((offset = ocfs2_find_next_zero_bit(bitmap, resmap->m_bitmap_len, + start)) != -1) { + /* Search reached end of the region */ + if (offset >= (search_start + search_len)) + break; + + if (offset == start) { + /* we found a zero */ + found++; + /* move start to the next bit to test */ + start++; + } else { + /* got a zero after some ones */ + found = 1; + start = offset + 1; + } + if (found > best_len) { + best_len = found; + best_start = start - found; + } + + if (found >= wanted) + break; + } + + if (best_len == 0) + return 0; + + if (best_len >= wanted) + best_len = wanted; + + *rlen = best_len; + *rstart = best_start; + + mlog(0, "Found start: %u len: %u\n", best_start, best_len); + + return *rlen; +} + +static void __ocfs2_resv_find_window(struct ocfs2_reservation_map *resmap, + struct ocfs2_alloc_reservation *resv, + unsigned int goal, unsigned int wanted) +{ + struct rb_root *root = &resmap->m_reservations; + unsigned int gap_start, gap_end, gap_len; + struct ocfs2_alloc_reservation *prev_resv, *next_resv; + struct rb_node *prev, *next; + unsigned int cstart, clen; + unsigned int best_start = 0, best_len = 0; + + /* + * Nasty cases to consider: + * + * - rbtree is empty + * - our window should be first in all reservations + * - our window should be last in all reservations + * - need to make sure we don't go past end of bitmap + */ + + mlog(0, "resv start: %u resv end: %u goal: %u wanted: %u\n", + resv->r_start, ocfs2_resv_end(resv), goal, wanted); + + assert_spin_locked(&resv_lock); + + if (RB_EMPTY_ROOT(root)) { + /* + * Easiest case - empty tree. We can just take + * whatever window of free bits we want. + */ + + mlog(0, "Empty root\n"); + + clen = ocfs2_resmap_find_free_bits(resmap, wanted, goal, + resmap->m_bitmap_len - goal, + &cstart, &clen); + + /* + * This should never happen - the local alloc window + * will always have free bits when we're called. + */ + BUG_ON(goal == 0 && clen == 0); + + if (clen == 0) + return; + + resv->r_start = cstart; + resv->r_len = clen; + + ocfs2_resv_insert(resmap, resv); + return; + } + + prev_resv = ocfs2_find_resv_lhs(resmap, goal); + + if (prev_resv == NULL) { + mlog(0, "Goal on LHS of leftmost window\n"); + + /* + * A NULL here means that the search code couldn't + * find a window that starts before goal. + * + * However, we can take the first window after goal, + * which is also by definition, the leftmost window in + * the entire tree. If we can find free bits in the + * gap between goal and the LHS window, then the + * reservation can safely be placed there. + * + * Otherwise we fall back to a linear search, checking + * the gaps in between windows for a place to + * allocate. + */ + + next = rb_first(root); + next_resv = rb_entry(next, struct ocfs2_alloc_reservation, + r_node); + + /* + * The search should never return such a window. (see + * comment above + */ + if (next_resv->r_start <= goal) { + mlog(ML_ERROR, "goal: %u next_resv: start %u len %u\n", + goal, next_resv->r_start, next_resv->r_len); + ocfs2_dump_resv(resmap); + BUG(); + } + + clen = ocfs2_resmap_find_free_bits(resmap, wanted, goal, + next_resv->r_start - goal, + &cstart, &clen); + if (clen) { + best_len = clen; + best_start = cstart; + if (best_len == wanted) + goto out_insert; + } + + prev_resv = next_resv; + next_resv = NULL; + } + + prev = &prev_resv->r_node; + + /* Now we do a linear search for a window, starting at 'prev_rsv' */ + while (1) { + next = rb_next(prev); + if (next) { + mlog(0, "One more resv found in linear search\n"); + next_resv = rb_entry(next, + struct ocfs2_alloc_reservation, + r_node); + + gap_start = ocfs2_resv_end(prev_resv) + 1; + gap_end = next_resv->r_start - 1; + gap_len = gap_end - gap_start + 1; + } else { + mlog(0, "No next node\n"); + /* + * We're at the rightmost edge of the + * tree. See if a reservation between this + * window and the end of the bitmap will work. + */ + gap_start = ocfs2_resv_end(prev_resv) + 1; + gap_len = resmap->m_bitmap_len - gap_start; + gap_end = resmap->m_bitmap_len - 1; + } + + /* + * No need to check this gap if we have already found + * a larger region of free bits. + */ + if (gap_len <= best_len) + goto next_resv; + + clen = ocfs2_resmap_find_free_bits(resmap, wanted, gap_start, + gap_len, &cstart, &clen); + if (clen == wanted) { + best_len = clen; + best_start = cstart; + goto out_insert; + } else if (clen > best_len) { + best_len = clen; + best_start = cstart; + } + +next_resv: + if (!next) + break; + + prev = next; + prev_resv = rb_entry(prev, struct ocfs2_alloc_reservation, + r_node); + } + +out_insert: + if (best_len) { + resv->r_start = best_start; + resv->r_len = best_len; + ocfs2_resv_insert(resmap, resv); + } +} + +static void ocfs2_cannibalize_resv(struct ocfs2_reservation_map *resmap, + struct ocfs2_alloc_reservation *resv, + unsigned int wanted) +{ + struct ocfs2_alloc_reservation *lru_resv; + int tmpwindow = !!(resv->r_flags & OCFS2_RESV_FLAG_TMP); + unsigned int min_bits; + + if (!tmpwindow) + min_bits = ocfs2_resv_window_bits(resmap, resv) >> 1; + else + min_bits = wanted; /* We at know the temp window will use all + * of these bits */ + + /* + * Take the first reservation off the LRU as our 'target'. We + * don't try to be smart about it. There might be a case for + * searching based on size but I don't have enough data to be + * sure. --Mark (3/16/2010) + */ + lru_resv = list_first_entry(&resmap->m_lru, + struct ocfs2_alloc_reservation, r_lru); + + mlog(0, "lru resv: start: %u len: %u end: %u\n", lru_resv->r_start, + lru_resv->r_len, ocfs2_resv_end(lru_resv)); + + /* + * Cannibalize (some or all) of the target reservation and + * feed it to the current window. + */ + if (lru_resv->r_len <= min_bits) { + /* + * Discard completely if size is less than or equal to a + * reasonable threshold - 50% of window bits for non temporary + * windows. + */ + resv->r_start = lru_resv->r_start; + resv->r_len = lru_resv->r_len; + + __ocfs2_resv_discard(resmap, lru_resv); + } else { + unsigned int shrink; + if (tmpwindow) + shrink = min_bits; + else + shrink = lru_resv->r_len / 2; + + lru_resv->r_len -= shrink; + + resv->r_start = ocfs2_resv_end(lru_resv) + 1; + resv->r_len = shrink; + } + + mlog(0, "Reservation now looks like: r_start: %u r_end: %u " + "r_len: %u r_last_start: %u r_last_len: %u\n", + resv->r_start, ocfs2_resv_end(resv), resv->r_len, + resv->r_last_start, resv->r_last_len); + + ocfs2_resv_insert(resmap, resv); +} + +static void ocfs2_resv_find_window(struct ocfs2_reservation_map *resmap, + struct ocfs2_alloc_reservation *resv, + unsigned int wanted) +{ + unsigned int goal = 0; + + BUG_ON(!ocfs2_resv_empty(resv)); + + /* + * Begin by trying to get a window as close to the previous + * one as possible. Using the most recent allocation as a + * start goal makes sense. + */ + if (resv->r_last_len) { + goal = resv->r_last_start + resv->r_last_len; + if (goal >= resmap->m_bitmap_len) + goal = 0; + } + + __ocfs2_resv_find_window(resmap, resv, goal, wanted); + + /* Search from last alloc didn't work, try once more from beginning. */ + if (ocfs2_resv_empty(resv) && goal != 0) + __ocfs2_resv_find_window(resmap, resv, 0, wanted); + + if (ocfs2_resv_empty(resv)) { + /* + * Still empty? Pull oldest one off the LRU, remove it from + * tree, put this one in it's place. + */ + ocfs2_cannibalize_resv(resmap, resv, wanted); + } + + BUG_ON(ocfs2_resv_empty(resv)); +} + +int ocfs2_resmap_resv_bits(struct ocfs2_reservation_map *resmap, + struct ocfs2_alloc_reservation *resv, + int *cstart, int *clen) +{ + unsigned int wanted = *clen; + + if (resv == NULL || ocfs2_resmap_disabled(resmap)) + return -ENOSPC; + + spin_lock(&resv_lock); + + /* + * We don't want to over-allocate for temporary + * windows. Otherwise, we run the risk of fragmenting the + * allocation space. + */ + wanted = ocfs2_resv_window_bits(resmap, resv); + if ((resv->r_flags & OCFS2_RESV_FLAG_TMP) || wanted < *clen) + wanted = *clen; + + if (ocfs2_resv_empty(resv)) { + mlog(0, "empty reservation, find new window\n"); + + /* + * Try to get a window here. If it works, we must fall + * through and test the bitmap . This avoids some + * ping-ponging of windows due to non-reserved space + * being allocation before we initialize a window for + * that inode. + */ + ocfs2_resv_find_window(resmap, resv, wanted); + } + + BUG_ON(ocfs2_resv_empty(resv)); + + *cstart = resv->r_start; + *clen = resv->r_len; + + spin_unlock(&resv_lock); + return 0; +} + +static void + ocfs2_adjust_resv_from_alloc(struct ocfs2_reservation_map *resmap, + struct ocfs2_alloc_reservation *resv, + unsigned int start, unsigned int end) +{ + unsigned int lhs = 0, rhs = 0; + + BUG_ON(start < resv->r_start); + + /* + * Completely used? We can remove it then. + */ + if (ocfs2_resv_end(resv) <= end && resv->r_start >= start) { + __ocfs2_resv_discard(resmap, resv); + return; + } + + if (end < ocfs2_resv_end(resv)) + rhs = end - ocfs2_resv_end(resv); + + if (start > resv->r_start) + lhs = start - resv->r_start; + + /* + * This should have been trapped above. At the very least, rhs + * should be non zero. + */ + BUG_ON(rhs == 0 && lhs == 0); + + if (rhs >= lhs) { + unsigned int old_end = ocfs2_resv_end(resv); + + resv->r_start = end + 1; + resv->r_len = old_end - resv->r_start + 1; + } else { + resv->r_len = start - resv->r_start; + } +} + +void ocfs2_resmap_claimed_bits(struct ocfs2_reservation_map *resmap, + struct ocfs2_alloc_reservation *resv, + u32 cstart, u32 clen) +{ + unsigned int cend = cstart + clen - 1; + + if (resmap == NULL || ocfs2_resmap_disabled(resmap)) + return; + + if (resv == NULL) + return; + + spin_lock(&resv_lock); + + mlog(0, "claim bits: cstart: %u cend: %u clen: %u r_start: %u " + "r_end: %u r_len: %u, r_last_start: %u r_last_len: %u\n", + cstart, cend, clen, resv->r_start, ocfs2_resv_end(resv), + resv->r_len, resv->r_last_start, resv->r_last_len); + + BUG_ON(cstart < resv->r_start); + BUG_ON(cstart > ocfs2_resv_end(resv)); + BUG_ON(cend > ocfs2_resv_end(resv)); + + ocfs2_adjust_resv_from_alloc(resmap, resv, cstart, cend); + resv->r_last_start = cstart; + resv->r_last_len = clen; + + /* + * May have been discarded above from + * ocfs2_adjust_resv_from_alloc(). + */ + if (!ocfs2_resv_empty(resv)) + ocfs2_resv_mark_lru(resmap, resv); + + mlog(0, "Reservation now looks like: r_start: %u r_end: %u " + "r_len: %u r_last_start: %u r_last_len: %u\n", + resv->r_start, ocfs2_resv_end(resv), resv->r_len, + resv->r_last_start, resv->r_last_len); + + ocfs2_check_resmap(resmap); + + spin_unlock(&resv_lock); +} diff --git a/fs/ocfs2/reservations.h b/fs/ocfs2/reservations.h new file mode 100644 index 00000000000..8341cd0ef85 --- /dev/null +++ b/fs/ocfs2/reservations.h @@ -0,0 +1,154 @@ +/* -*- mode: c; c-basic-offset: 8; -*- + * vim: noexpandtab sw=8 ts=8 sts=0: + * + * reservations.h + * + * Allocation reservations function prototypes and structures. + * + * Copyright (C) 2010 Novell. All rights reserved. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public + * License version 2 as published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + */ + +#ifndef OCFS2_RESERVATIONS_H +#define OCFS2_RESERVATIONS_H + +#include + +#define OCFS2_DEFAULT_RESV_LEVEL 4 +#define OCFS2_MAX_RESV_LEVEL 9 +#define OCFS2_MIN_RESV_LEVEL 0 + +struct ocfs2_alloc_reservation { + struct rb_node r_node; + + unsigned int r_start; /* Begining of current window */ + unsigned int r_len; /* Length of the window */ + + unsigned int r_last_len; /* Length of most recent alloc */ + unsigned int r_last_start; /* Start of most recent alloc */ + struct list_head r_lru; /* LRU list head */ + + unsigned int r_flags; +}; + +#define OCFS2_RESV_FLAG_INUSE 0x01 /* Set when r_node is part of a btree */ +#define OCFS2_RESV_FLAG_TMP 0x02 /* Temporary reservation, will be + * destroyed immedately after use */ + +struct ocfs2_reservation_map { + struct rb_root m_reservations; + char *m_disk_bitmap; + + struct ocfs2_super *m_osb; + + /* The following are not initialized to meaningful values until a disk + * bitmap is provided. */ + u32 m_bitmap_len; /* Number of valid + * bits available */ + + struct list_head m_lru; /* LRU of reservations + * structures. */ + +}; + +void ocfs2_resv_init_once(struct ocfs2_alloc_reservation *resv); + +#define OCFS2_RESV_TYPES (OCFS2_RESV_FLAG_TMP) +void ocfs2_resv_set_type(struct ocfs2_alloc_reservation *resv, + unsigned int flags); + +/** + * ocfs2_resv_discard() - truncate a reservation + * @resmap: + * @resv: the reservation to truncate. + * + * After this function is called, the reservation will be empty, and + * unlinked from the rbtree. + */ +void ocfs2_resv_discard(struct ocfs2_reservation_map *resmap, + struct ocfs2_alloc_reservation *resv); + + +/** + * ocfs2_resmap_init() - Initialize fields of a reservations bitmap + * @resmap: struct ocfs2_reservation_map to initialize + * @obj: unused for now + * @ops: unused for now + * @max_bitmap_bytes: Maximum size of the bitmap (typically blocksize) + * + * Only possible return value other than '0' is -ENOMEM for failure to + * allocation mirror bitmap. + */ +int ocfs2_resmap_init(struct ocfs2_super *osb, + struct ocfs2_reservation_map *resmap); + +/** + * ocfs2_resmap_restart() - "restart" a reservation bitmap + * @resmap: reservations bitmap + * @clen: Number of valid bits in the bitmap + * @disk_bitmap: the disk bitmap this resmap should refer to. + * + * Re-initialize the parameters of a reservation bitmap. This is + * useful for local alloc window slides. + * + * This function will call ocfs2_trunc_resv against all existing + * reservations. A future version will recalculate existing + * reservations based on the new bitmap. + */ +void ocfs2_resmap_restart(struct ocfs2_reservation_map *resmap, + unsigned int clen, char *disk_bitmap); + +/** + * ocfs2_resmap_uninit() - uninitialize a reservation bitmap structure + * @resmap: the struct ocfs2_reservation_map to uninitialize + */ +void ocfs2_resmap_uninit(struct ocfs2_reservation_map *resmap); + +/** + * ocfs2_resmap_resv_bits() - Return still-valid reservation bits + * @resmap: reservations bitmap + * @resv: reservation to base search from + * @cstart: start of proposed allocation + * @clen: length (in clusters) of proposed allocation + * + * Using the reservation data from resv, this function will compare + * resmap and resmap->m_disk_bitmap to determine what part (if any) of + * the reservation window is still clear to use. If resv is empty, + * this function will try to allocate a window for it. + * + * On success, zero is returned and the valid allocation area is set in cstart + * and clen. + * + * Returns -ENOSPC if reservations are disabled. + */ +int ocfs2_resmap_resv_bits(struct ocfs2_reservation_map *resmap, + struct ocfs2_alloc_reservation *resv, + int *cstart, int *clen); + +/** + * ocfs2_resmap_claimed_bits() - Tell the reservation code that bits were used. + * @resmap: reservations bitmap + * @resv: optional reservation to recalulate based on new bitmap + * @cstart: start of allocation in clusters + * @clen: end of allocation in clusters. + * + * Tell the reservation code that bits were used to fulfill allocation in + * resmap. The bits don't have to have been part of any existing + * reservation. But we must always call this function when bits are claimed. + * Internally, the reservations code will use this information to mark the + * reservations bitmap. If resv is passed, it's next allocation window will be + * calculated. + */ +void ocfs2_resmap_claimed_bits(struct ocfs2_reservation_map *resmap, + struct ocfs2_alloc_reservation *resv, + u32 cstart, u32 clen); + +#endif /* OCFS2_RESERVATIONS_H */ diff --git a/fs/ocfs2/suballoc.h b/fs/ocfs2/suballoc.h index e0f46df357e..da2f29a55ec 100644 --- a/fs/ocfs2/suballoc.h +++ b/fs/ocfs2/suballoc.h @@ -54,6 +54,8 @@ struct ocfs2_alloc_context { u64 ac_last_group; u64 ac_max_block; /* Highest block number to allocate. 0 is is the same as ~0 - unlimited */ + + struct ocfs2_alloc_reservation *ac_resv; }; void ocfs2_init_steal_slots(struct ocfs2_super *osb); diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index dee03197a49..cfe672e72b2 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -95,6 +95,7 @@ struct mount_options unsigned int atime_quantum; signed short slot; unsigned int localalloc_opt; + unsigned int resv_level; char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; }; @@ -176,6 +177,7 @@ enum { Opt_noacl, Opt_usrquota, Opt_grpquota, + Opt_resv_level, Opt_err, }; @@ -202,6 +204,7 @@ static const match_table_t tokens = { {Opt_noacl, "noacl"}, {Opt_usrquota, "usrquota"}, {Opt_grpquota, "grpquota"}, + {Opt_resv_level, "resv_level=%u"}, {Opt_err, NULL} }; @@ -1030,6 +1033,7 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) osb->osb_commit_interval = parsed_options.commit_interval; osb->local_alloc_default_bits = ocfs2_megabytes_to_clusters(sb, parsed_options.localalloc_opt); osb->local_alloc_bits = osb->local_alloc_default_bits; + osb->osb_resv_level = parsed_options.resv_level; status = ocfs2_verify_userspace_stack(osb, &parsed_options); if (status) @@ -1290,6 +1294,7 @@ static int ocfs2_parse_options(struct super_block *sb, mopt->slot = OCFS2_INVALID_SLOT; mopt->localalloc_opt = OCFS2_DEFAULT_LOCAL_ALLOC_SIZE; mopt->cluster_stack[0] = '\0'; + mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL; if (!options) { status = 1; @@ -1433,6 +1438,17 @@ static int ocfs2_parse_options(struct super_block *sb, mopt->mount_opt |= OCFS2_MOUNT_NO_POSIX_ACL; mopt->mount_opt &= ~OCFS2_MOUNT_POSIX_ACL; break; + case Opt_resv_level: + if (is_remount) + break; + if (match_int(&args[0], &option)) { + status = 0; + goto bail; + } + if (option >= OCFS2_MIN_RESV_LEVEL && + option < OCFS2_MAX_RESV_LEVEL) + mopt->resv_level = option; + break; default: mlog(ML_ERROR, "Unrecognized mount option \"%s\" " @@ -1514,6 +1530,9 @@ static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt) else seq_printf(s, ",noacl"); + if (osb->osb_resv_level != OCFS2_DEFAULT_RESV_LEVEL) + seq_printf(s, ",resv_level=%d", osb->osb_resv_level); + return 0; } @@ -2042,6 +2061,12 @@ static int ocfs2_initialize_super(struct super_block *sb, init_waitqueue_head(&osb->osb_mount_event); + status = ocfs2_resmap_init(osb, &osb->osb_la_resmap); + if (status) { + mlog_errno(status); + goto bail; + } + osb->vol_label = kmalloc(OCFS2_MAX_VOL_LABEL_LEN, GFP_KERNEL); if (!osb->vol_label) { mlog(ML_ERROR, "unable to alloc vol label\n"); -- cgit v1.2.3-70-g09d2 From b07f8f24dfe54da0f074b78949044842e8df881f Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Mon, 5 Apr 2010 18:17:15 -0700 Subject: ocfs2: change default reservation window sizes The default reservation size of 4 (32-bit windows) is a bit too ambitious. Scale it back to 16 bits (resv_level=2). I have been testing various sizes on a 4-node cluster which runs a mixed workload that is heavily threaded. With a 256MB local alloc, I get *roughly* the following levels of average file fragmentation: resv_level=0 70% resv_level=1 21% resv_level=2 23% resv_level=3 24% resv_level=4 60% resv_level=5 did not test resv_level=6 60% resv_level=2 seemed like a good compromise between not letting windows be too small, but not so big that heavier workloads will immediately suffer without tuning. This patch also change the behavior of directory reservations - they now track file reservations. The previous compromise of giving directory windows only 8 bits wound up fragmenting more at some window sizes because file allocations had smaller unused windows to poach from. Signed-off-by: Mark Fasheh Signed-off-by: Joel Becker --- Documentation/filesystems/ocfs2.txt | 2 +- fs/ocfs2/reservations.c | 7 ++++--- fs/ocfs2/reservations.h | 2 +- 3 files changed, 6 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/ocfs2.txt b/Documentation/filesystems/ocfs2.txt index 412df909593..32339e584a9 100644 --- a/Documentation/filesystems/ocfs2.txt +++ b/Documentation/filesystems/ocfs2.txt @@ -80,6 +80,6 @@ user_xattr (*) Enables Extended User Attributes. nouser_xattr Disables Extended User Attributes. acl Enables POSIX Access Control Lists support. noacl (*) Disables POSIX Access Control Lists support. -resv_level=4 (*) Set how agressive allocation reservations will be. +resv_level=2 (*) Set how agressive allocation reservations will be. Valid values are between 0 (reservations off) to 8 (maximum space for reservations). diff --git a/fs/ocfs2/reservations.c b/fs/ocfs2/reservations.c index 7fc6cfee95f..87fa35791f1 100644 --- a/fs/ocfs2/reservations.c +++ b/fs/ocfs2/reservations.c @@ -55,9 +55,10 @@ static unsigned int ocfs2_resv_window_bits(struct ocfs2_reservation_map *resmap, if (!(resv->r_flags & OCFS2_RESV_FLAG_DIR)) { /* 8, 16, 32, 64, 128, 256, 512, 1024 */ bits = 4 << osb->osb_resv_level; - } else - bits = OCFS2_RESV_DIR_WINDOW_BITS; - + } else { + /* For now, treat directories the same as files. */ + bits = 4 << osb->osb_resv_level; + } return bits; } diff --git a/fs/ocfs2/reservations.h b/fs/ocfs2/reservations.h index 34bb308375c..022aff601e1 100644 --- a/fs/ocfs2/reservations.h +++ b/fs/ocfs2/reservations.h @@ -22,7 +22,7 @@ #include -#define OCFS2_DEFAULT_RESV_LEVEL 4 +#define OCFS2_DEFAULT_RESV_LEVEL 2 #define OCFS2_MAX_RESV_LEVEL 9 #define OCFS2_MIN_RESV_LEVEL 0 -- cgit v1.2.3-70-g09d2 From 83f92318fa33cc084e14e64dc903e605f75884c1 Mon Sep 17 00:00:00 2001 From: Mark Fasheh Date: Mon, 5 Apr 2010 18:17:16 -0700 Subject: ocfs2: Add dir_resv_level mount option The default behavior for directory reservations stays the same, but we add a mount option so people can tweak the size of directory reservations according to their workloads. Signed-off-by: Mark Fasheh Signed-off-by: Joel Becker --- Documentation/filesystems/ocfs2.txt | 4 ++++ fs/ocfs2/dir.c | 6 ++++-- fs/ocfs2/ocfs2.h | 1 + fs/ocfs2/reservations.c | 9 ++++++--- fs/ocfs2/reservations.h | 2 ++ fs/ocfs2/super.c | 23 +++++++++++++++++++++++ 6 files changed, 40 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/ocfs2.txt b/Documentation/filesystems/ocfs2.txt index 32339e584a9..1f7ae144f6d 100644 --- a/Documentation/filesystems/ocfs2.txt +++ b/Documentation/filesystems/ocfs2.txt @@ -83,3 +83,7 @@ noacl (*) Disables POSIX Access Control Lists support. resv_level=2 (*) Set how agressive allocation reservations will be. Valid values are between 0 (reservations off) to 8 (maximum space for reservations). +dir_resv_level= (*) By default, directory reservations will scale with file + reservations - users should rarely need to change this + value. If allocation reservations are turned off, this + option will have no effect. diff --git a/fs/ocfs2/dir.c b/fs/ocfs2/dir.c index 8563f97c58a..6c9a28a2d3a 100644 --- a/fs/ocfs2/dir.c +++ b/fs/ocfs2/dir.c @@ -2977,7 +2977,8 @@ static int ocfs2_expand_inline_dir(struct inode *dir, struct buffer_head *di_bh, * if we only get one now, that's enough to continue. The rest * will be claimed after the conversion to extents. */ - data_ac->ac_resv = &oi->ip_la_data_resv; + if (ocfs2_dir_resv_allowed(osb)) + data_ac->ac_resv = &oi->ip_la_data_resv; ret = ocfs2_claim_clusters(osb, handle, data_ac, 1, &bit_off, &len); if (ret) { mlog_errno(ret); @@ -3348,7 +3349,8 @@ static int ocfs2_extend_dir(struct ocfs2_super *osb, goto bail; } - data_ac->ac_resv = &OCFS2_I(dir)->ip_la_data_resv; + if (ocfs2_dir_resv_allowed(osb)) + data_ac->ac_resv = &OCFS2_I(dir)->ip_la_data_resv; credits = ocfs2_calc_extend_credits(sb, el, 1); } else { diff --git a/fs/ocfs2/ocfs2.h b/fs/ocfs2/ocfs2.h index 09d7aee3dab..a388528f485 100644 --- a/fs/ocfs2/ocfs2.h +++ b/fs/ocfs2/ocfs2.h @@ -356,6 +356,7 @@ struct ocfs2_super struct ocfs2_reservation_map osb_la_resmap; unsigned int osb_resv_level; + unsigned int osb_dir_resv_level; /* Next three fields are for local node slot recovery during * mount. */ diff --git a/fs/ocfs2/reservations.c b/fs/ocfs2/reservations.c index 87fa35791f1..6497bcc00fa 100644 --- a/fs/ocfs2/reservations.c +++ b/fs/ocfs2/reservations.c @@ -44,7 +44,11 @@ DEFINE_SPINLOCK(resv_lock); #define OCFS2_MIN_RESV_WINDOW_BITS 8 #define OCFS2_MAX_RESV_WINDOW_BITS 1024 -#define OCFS2_RESV_DIR_WINDOW_BITS OCFS2_MIN_RESV_WINDOW_BITS + +int ocfs2_dir_resv_allowed(struct ocfs2_super *osb) +{ + return (osb->osb_resv_level && osb->osb_dir_resv_level); +} static unsigned int ocfs2_resv_window_bits(struct ocfs2_reservation_map *resmap, struct ocfs2_alloc_reservation *resv) @@ -56,8 +60,7 @@ static unsigned int ocfs2_resv_window_bits(struct ocfs2_reservation_map *resmap, /* 8, 16, 32, 64, 128, 256, 512, 1024 */ bits = 4 << osb->osb_resv_level; } else { - /* For now, treat directories the same as files. */ - bits = 4 << osb->osb_resv_level; + bits = 4 << osb->osb_dir_resv_level; } return bits; } diff --git a/fs/ocfs2/reservations.h b/fs/ocfs2/reservations.h index 022aff601e1..25b0c0e31e9 100644 --- a/fs/ocfs2/reservations.h +++ b/fs/ocfs2/reservations.h @@ -67,6 +67,8 @@ void ocfs2_resv_init_once(struct ocfs2_alloc_reservation *resv); void ocfs2_resv_set_type(struct ocfs2_alloc_reservation *resv, unsigned int flags); +int ocfs2_dir_resv_allowed(struct ocfs2_super *osb); + /** * ocfs2_resv_discard() - truncate a reservation * @resmap: diff --git a/fs/ocfs2/super.c b/fs/ocfs2/super.c index 5745682eb1c..79d7d4cf45b 100644 --- a/fs/ocfs2/super.c +++ b/fs/ocfs2/super.c @@ -96,6 +96,7 @@ struct mount_options signed short slot; int localalloc_opt; unsigned int resv_level; + int dir_resv_level; char cluster_stack[OCFS2_STACK_LABEL_LEN + 1]; }; @@ -178,6 +179,7 @@ enum { Opt_usrquota, Opt_grpquota, Opt_resv_level, + Opt_dir_resv_level, Opt_err, }; @@ -205,6 +207,7 @@ static const match_table_t tokens = { {Opt_usrquota, "usrquota"}, {Opt_grpquota, "grpquota"}, {Opt_resv_level, "resv_level=%u"}, + {Opt_dir_resv_level, "dir_resv_level=%u"}, {Opt_err, NULL} }; @@ -1034,6 +1037,11 @@ static int ocfs2_fill_super(struct super_block *sb, void *data, int silent) ocfs2_la_set_sizes(osb, parsed_options.localalloc_opt); osb->osb_resv_level = parsed_options.resv_level; + osb->osb_dir_resv_level = parsed_options.resv_level; + if (parsed_options.dir_resv_level == -1) + osb->osb_dir_resv_level = parsed_options.resv_level; + else + osb->osb_dir_resv_level = parsed_options.dir_resv_level; status = ocfs2_verify_userspace_stack(osb, &parsed_options); if (status) @@ -1295,6 +1303,7 @@ static int ocfs2_parse_options(struct super_block *sb, mopt->localalloc_opt = -1; mopt->cluster_stack[0] = '\0'; mopt->resv_level = OCFS2_DEFAULT_RESV_LEVEL; + mopt->dir_resv_level = -1; if (!options) { status = 1; @@ -1449,6 +1458,17 @@ static int ocfs2_parse_options(struct super_block *sb, option < OCFS2_MAX_RESV_LEVEL) mopt->resv_level = option; break; + case Opt_dir_resv_level: + if (is_remount) + break; + if (match_int(&args[0], &option)) { + status = 0; + goto bail; + } + if (option >= OCFS2_MIN_RESV_LEVEL && + option < OCFS2_MAX_RESV_LEVEL) + mopt->dir_resv_level = option; + break; default: mlog(ML_ERROR, "Unrecognized mount option \"%s\" " @@ -1533,6 +1553,9 @@ static int ocfs2_show_options(struct seq_file *s, struct vfsmount *mnt) if (osb->osb_resv_level != OCFS2_DEFAULT_RESV_LEVEL) seq_printf(s, ",resv_level=%d", osb->osb_resv_level); + if (osb->osb_dir_resv_level != osb->osb_resv_level) + seq_printf(s, ",dir_resv_level=%d", osb->osb_resv_level); + return 0; } -- cgit v1.2.3-70-g09d2 From 969c79215a35b06e5e3efe69b9412f858df7856c Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Thu, 6 May 2010 18:49:21 +0200 Subject: sched: replace migration_thread with cpu_stop Currently migration_thread is serving three purposes - migration pusher, context to execute active_load_balance() and forced context switcher for expedited RCU synchronize_sched. All three roles are hardcoded into migration_thread() and determining which job is scheduled is slightly messy. This patch kills migration_thread and replaces all three uses with cpu_stop. The three different roles of migration_thread() are splitted into three separate cpu_stop callbacks - migration_cpu_stop(), active_load_balance_cpu_stop() and synchronize_sched_expedited_cpu_stop() - and each use case now simply asks cpu_stop to execute the callback as necessary. synchronize_sched_expedited() was implemented with private preallocated resources and custom multi-cpu queueing and waiting logic, both of which are provided by cpu_stop. synchronize_sched_expedited_count is made atomic and all other shared resources along with the mutex are dropped. synchronize_sched_expedited() also implemented a check to detect cases where not all the callback got executed on their assigned cpus and fall back to synchronize_sched(). If called with cpu hotplug blocked, cpu_stop already guarantees that and the condition cannot happen; otherwise, stop_machine() would break. However, this patch preserves the paranoid check using a cpumask to record on which cpus the stopper ran so that it can serve as a bisection point if something actually goes wrong theree. Because the internal execution state is no longer visible, rcu_expedited_torture_stats() is removed. This patch also renames cpu_stop threads to from "stopper/%d" to "migration/%d". The names of these threads ultimately don't matter and there's no reason to make unnecessary userland visible changes. With this patch applied, stop_machine() and sched now share the same resources. stop_machine() is faster without wasting any resources and sched migration users are much cleaner. Signed-off-by: Tejun Heo Acked-by: Peter Zijlstra Cc: Ingo Molnar Cc: Dipankar Sarma Cc: Josh Triplett Cc: Paul E. McKenney Cc: Oleg Nesterov Cc: Dimitri Sivanich --- Documentation/RCU/torture.txt | 10 -- include/linux/rcutiny.h | 2 - include/linux/rcutree.h | 1 - kernel/rcutorture.c | 2 +- kernel/sched.c | 315 ++++++++++++------------------------------ kernel/sched_fair.c | 48 +++++-- kernel/stop_machine.c | 2 +- 7 files changed, 127 insertions(+), 253 deletions(-) (limited to 'Documentation') diff --git a/Documentation/RCU/torture.txt b/Documentation/RCU/torture.txt index 0e50bc2aa1e..5d9016795fd 100644 --- a/Documentation/RCU/torture.txt +++ b/Documentation/RCU/torture.txt @@ -182,16 +182,6 @@ Similarly, sched_expedited RCU provides the following: sched_expedited-torture: Reader Pipe: 12660320201 95875 0 0 0 0 0 0 0 0 0 sched_expedited-torture: Reader Batch: 12660424885 0 0 0 0 0 0 0 0 0 0 sched_expedited-torture: Free-Block Circulation: 1090795 1090795 1090794 1090793 1090792 1090791 1090790 1090789 1090788 1090787 0 - state: -1 / 0:0 3:0 4:0 - -As before, the first four lines are similar to those for RCU. -The last line shows the task-migration state. The first number is --1 if synchronize_sched_expedited() is idle, -2 if in the process of -posting wakeups to the migration kthreads, and N when waiting on CPU N. -Each of the colon-separated fields following the "/" is a CPU:state pair. -Valid states are "0" for idle, "1" for waiting for quiescent state, -"2" for passed through quiescent state, and "3" when a race with a -CPU-hotplug event forces use of the synchronize_sched() primitive. USAGE diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h index a5195875480..0006b2df00e 100644 --- a/include/linux/rcutiny.h +++ b/include/linux/rcutiny.h @@ -60,8 +60,6 @@ static inline long rcu_batches_completed_bh(void) return 0; } -extern int rcu_expedited_torture_stats(char *page); - static inline void rcu_force_quiescent_state(void) { } diff --git a/include/linux/rcutree.h b/include/linux/rcutree.h index 42cc3a04779..24e467e526b 100644 --- a/include/linux/rcutree.h +++ b/include/linux/rcutree.h @@ -35,7 +35,6 @@ struct notifier_block; extern void rcu_sched_qs(int cpu); extern void rcu_bh_qs(int cpu); extern int rcu_needs_cpu(int cpu); -extern int rcu_expedited_torture_stats(char *page); #ifdef CONFIG_TREE_PREEMPT_RCU diff --git a/kernel/rcutorture.c b/kernel/rcutorture.c index 58df55bf83e..2b676f3a0f2 100644 --- a/kernel/rcutorture.c +++ b/kernel/rcutorture.c @@ -669,7 +669,7 @@ static struct rcu_torture_ops sched_expedited_ops = { .sync = synchronize_sched_expedited, .cb_barrier = NULL, .fqs = rcu_sched_force_quiescent_state, - .stats = rcu_expedited_torture_stats, + .stats = NULL, .irq_capable = 1, .name = "sched_expedited" }; diff --git a/kernel/sched.c b/kernel/sched.c index 4956ed09283..f1d577a0a8a 100644 --- a/kernel/sched.c +++ b/kernel/sched.c @@ -55,9 +55,9 @@ #include #include #include -#include #include #include +#include #include #include #include @@ -539,15 +539,13 @@ struct rq { int post_schedule; int active_balance; int push_cpu; + struct cpu_stop_work active_balance_work; /* cpu of this runqueue: */ int cpu; int online; unsigned long avg_load_per_task; - struct task_struct *migration_thread; - struct list_head migration_queue; - u64 rt_avg; u64 age_stamp; u64 idle_stamp; @@ -2037,21 +2035,18 @@ void set_task_cpu(struct task_struct *p, unsigned int new_cpu) __set_task_cpu(p, new_cpu); } -struct migration_req { - struct list_head list; - +struct migration_arg { struct task_struct *task; int dest_cpu; - - struct completion done; }; +static int migration_cpu_stop(void *data); + /* * The task's runqueue lock must be held. * Returns true if you have to wait for migration thread. */ -static int -migrate_task(struct task_struct *p, int dest_cpu, struct migration_req *req) +static bool migrate_task(struct task_struct *p, int dest_cpu) { struct rq *rq = task_rq(p); @@ -2059,15 +2054,7 @@ migrate_task(struct task_struct *p, int dest_cpu, struct migration_req *req) * If the task is not on a runqueue (and not running), then * the next wake-up will properly place the task. */ - if (!p->se.on_rq && !task_running(rq, p)) - return 0; - - init_completion(&req->done); - req->task = p; - req->dest_cpu = dest_cpu; - list_add(&req->list, &rq->migration_queue); - - return 1; + return p->se.on_rq || task_running(rq, p); } /* @@ -3110,7 +3097,6 @@ static void update_cpu_load(struct rq *this_rq) void sched_exec(void) { struct task_struct *p = current; - struct migration_req req; unsigned long flags; struct rq *rq; int dest_cpu; @@ -3124,17 +3110,11 @@ void sched_exec(void) * select_task_rq() can race against ->cpus_allowed */ if (cpumask_test_cpu(dest_cpu, &p->cpus_allowed) && - likely(cpu_active(dest_cpu)) && - migrate_task(p, dest_cpu, &req)) { - /* Need to wait for migration thread (might exit: take ref). */ - struct task_struct *mt = rq->migration_thread; + likely(cpu_active(dest_cpu)) && migrate_task(p, dest_cpu)) { + struct migration_arg arg = { p, dest_cpu }; - get_task_struct(mt); task_rq_unlock(rq, &flags); - wake_up_process(mt); - put_task_struct(mt); - wait_for_completion(&req.done); - + stop_one_cpu(cpu_of(rq), migration_cpu_stop, &arg); return; } unlock: @@ -5290,17 +5270,15 @@ static inline void sched_init_granularity(void) /* * This is how migration works: * - * 1) we queue a struct migration_req structure in the source CPU's - * runqueue and wake up that CPU's migration thread. - * 2) we down() the locked semaphore => thread blocks. - * 3) migration thread wakes up (implicitly it forces the migrated - * thread off the CPU) - * 4) it gets the migration request and checks whether the migrated - * task is still in the wrong runqueue. - * 5) if it's in the wrong runqueue then the migration thread removes + * 1) we invoke migration_cpu_stop() on the target CPU using + * stop_one_cpu(). + * 2) stopper starts to run (implicitly forcing the migrated thread + * off the CPU) + * 3) it checks whether the migrated task is still in the wrong runqueue. + * 4) if it's in the wrong runqueue then the migration thread removes * it and puts it into the right queue. - * 6) migration thread up()s the semaphore. - * 7) we wake up and the migration is done. + * 5) stopper completes and stop_one_cpu() returns and the migration + * is done. */ /* @@ -5314,9 +5292,9 @@ static inline void sched_init_granularity(void) */ int set_cpus_allowed_ptr(struct task_struct *p, const struct cpumask *new_mask) { - struct migration_req req; unsigned long flags; struct rq *rq; + unsigned int dest_cpu; int ret = 0; /* @@ -5354,15 +5332,12 @@ again: if (cpumask_test_cpu(task_cpu(p), new_mask)) goto out; - if (migrate_task(p, cpumask_any_and(cpu_active_mask, new_mask), &req)) { + dest_cpu = cpumask_any_and(cpu_active_mask, new_mask); + if (migrate_task(p, dest_cpu)) { + struct migration_arg arg = { p, dest_cpu }; /* Need help from migration thread: drop lock and wait. */ - struct task_struct *mt = rq->migration_thread; - - get_task_struct(mt); task_rq_unlock(rq, &flags); - wake_up_process(mt); - put_task_struct(mt); - wait_for_completion(&req.done); + stop_one_cpu(cpu_of(rq), migration_cpu_stop, &arg); tlb_migrate_finish(p->mm); return 0; } @@ -5420,70 +5395,22 @@ fail: return ret; } -#define RCU_MIGRATION_IDLE 0 -#define RCU_MIGRATION_NEED_QS 1 -#define RCU_MIGRATION_GOT_QS 2 -#define RCU_MIGRATION_MUST_SYNC 3 - /* - * migration_thread - this is a highprio system thread that performs - * thread migration by bumping thread off CPU then 'pushing' onto - * another runqueue. + * migration_cpu_stop - this will be executed by a highprio stopper thread + * and performs thread migration by bumping thread off CPU then + * 'pushing' onto another runqueue. */ -static int migration_thread(void *data) +static int migration_cpu_stop(void *data) { - int badcpu; - int cpu = (long)data; - struct rq *rq; - - rq = cpu_rq(cpu); - BUG_ON(rq->migration_thread != current); - - set_current_state(TASK_INTERRUPTIBLE); - while (!kthread_should_stop()) { - struct migration_req *req; - struct list_head *head; - - raw_spin_lock_irq(&rq->lock); - - if (cpu_is_offline(cpu)) { - raw_spin_unlock_irq(&rq->lock); - break; - } - - if (rq->active_balance) { - active_load_balance(rq, cpu); - rq->active_balance = 0; - } - - head = &rq->migration_queue; - - if (list_empty(head)) { - raw_spin_unlock_irq(&rq->lock); - schedule(); - set_current_state(TASK_INTERRUPTIBLE); - continue; - } - req = list_entry(head->next, struct migration_req, list); - list_del_init(head->next); - - if (req->task != NULL) { - raw_spin_unlock(&rq->lock); - __migrate_task(req->task, cpu, req->dest_cpu); - } else if (likely(cpu == (badcpu = smp_processor_id()))) { - req->dest_cpu = RCU_MIGRATION_GOT_QS; - raw_spin_unlock(&rq->lock); - } else { - req->dest_cpu = RCU_MIGRATION_MUST_SYNC; - raw_spin_unlock(&rq->lock); - WARN_ONCE(1, "migration_thread() on CPU %d, expected %d\n", badcpu, cpu); - } - local_irq_enable(); - - complete(&req->done); - } - __set_current_state(TASK_RUNNING); + struct migration_arg *arg = data; + /* + * The original target cpu might have gone down and we might + * be on another cpu but it doesn't matter. + */ + local_irq_disable(); + __migrate_task(arg->task, raw_smp_processor_id(), arg->dest_cpu); + local_irq_enable(); return 0; } @@ -5850,35 +5777,20 @@ static void set_rq_offline(struct rq *rq) static int __cpuinit migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu) { - struct task_struct *p; int cpu = (long)hcpu; unsigned long flags; - struct rq *rq; + struct rq *rq = cpu_rq(cpu); switch (action) { case CPU_UP_PREPARE: case CPU_UP_PREPARE_FROZEN: - p = kthread_create(migration_thread, hcpu, "migration/%d", cpu); - if (IS_ERR(p)) - return NOTIFY_BAD; - kthread_bind(p, cpu); - /* Must be high prio: stop_machine expects to yield to it. */ - rq = task_rq_lock(p, &flags); - __setscheduler(rq, p, SCHED_FIFO, MAX_RT_PRIO-1); - task_rq_unlock(rq, &flags); - get_task_struct(p); - cpu_rq(cpu)->migration_thread = p; rq->calc_load_update = calc_load_update; break; case CPU_ONLINE: case CPU_ONLINE_FROZEN: - /* Strictly unnecessary, as first user will wake it. */ - wake_up_process(cpu_rq(cpu)->migration_thread); - /* Update our root-domain */ - rq = cpu_rq(cpu); raw_spin_lock_irqsave(&rq->lock, flags); if (rq->rd) { BUG_ON(!cpumask_test_cpu(cpu, rq->rd->span)); @@ -5889,25 +5801,9 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu) break; #ifdef CONFIG_HOTPLUG_CPU - case CPU_UP_CANCELED: - case CPU_UP_CANCELED_FROZEN: - if (!cpu_rq(cpu)->migration_thread) - break; - /* Unbind it from offline cpu so it can run. Fall thru. */ - kthread_bind(cpu_rq(cpu)->migration_thread, - cpumask_any(cpu_online_mask)); - kthread_stop(cpu_rq(cpu)->migration_thread); - put_task_struct(cpu_rq(cpu)->migration_thread); - cpu_rq(cpu)->migration_thread = NULL; - break; - case CPU_DEAD: case CPU_DEAD_FROZEN: migrate_live_tasks(cpu); - rq = cpu_rq(cpu); - kthread_stop(rq->migration_thread); - put_task_struct(rq->migration_thread); - rq->migration_thread = NULL; /* Idle task back to normal (off runqueue, low prio) */ raw_spin_lock_irq(&rq->lock); deactivate_task(rq, rq->idle, 0); @@ -5918,29 +5814,11 @@ migration_call(struct notifier_block *nfb, unsigned long action, void *hcpu) migrate_nr_uninterruptible(rq); BUG_ON(rq->nr_running != 0); calc_global_load_remove(rq); - /* - * No need to migrate the tasks: it was best-effort if - * they didn't take sched_hotcpu_mutex. Just wake up - * the requestors. - */ - raw_spin_lock_irq(&rq->lock); - while (!list_empty(&rq->migration_queue)) { - struct migration_req *req; - - req = list_entry(rq->migration_queue.next, - struct migration_req, list); - list_del_init(&req->list); - raw_spin_unlock_irq(&rq->lock); - complete(&req->done); - raw_spin_lock_irq(&rq->lock); - } - raw_spin_unlock_irq(&rq->lock); break; case CPU_DYING: case CPU_DYING_FROZEN: /* Update our root-domain */ - rq = cpu_rq(cpu); raw_spin_lock_irqsave(&rq->lock, flags); if (rq->rd) { BUG_ON(!cpumask_test_cpu(cpu, rq->rd->span)); @@ -7757,10 +7635,8 @@ void __init sched_init(void) rq->push_cpu = 0; rq->cpu = i; rq->online = 0; - rq->migration_thread = NULL; rq->idle_stamp = 0; rq->avg_idle = 2*sysctl_sched_migration_cost; - INIT_LIST_HEAD(&rq->migration_queue); rq_attach_root(rq, &def_root_domain); #endif init_rq_hrtick(rq); @@ -9054,43 +8930,39 @@ struct cgroup_subsys cpuacct_subsys = { #ifndef CONFIG_SMP -int rcu_expedited_torture_stats(char *page) -{ - return 0; -} -EXPORT_SYMBOL_GPL(rcu_expedited_torture_stats); - void synchronize_sched_expedited(void) { + /* + * There must be a full memory barrier on each affected CPU + * between the time that try_stop_cpus() is called and the + * time that it returns. + * + * In the current initial implementation of cpu_stop, the + * above condition is already met when the control reaches + * this point and the following smp_mb() is not strictly + * necessary. Do smp_mb() anyway for documentation and + * robustness against future implementation changes. + */ + smp_mb(); } EXPORT_SYMBOL_GPL(synchronize_sched_expedited); #else /* #ifndef CONFIG_SMP */ -static DEFINE_PER_CPU(struct migration_req, rcu_migration_req); -static DEFINE_MUTEX(rcu_sched_expedited_mutex); - -#define RCU_EXPEDITED_STATE_POST -2 -#define RCU_EXPEDITED_STATE_IDLE -1 +static atomic_t synchronize_sched_expedited_count = ATOMIC_INIT(0); -static int rcu_expedited_state = RCU_EXPEDITED_STATE_IDLE; - -int rcu_expedited_torture_stats(char *page) +static int synchronize_sched_expedited_cpu_stop(void *data) { - int cnt = 0; - int cpu; + static DEFINE_SPINLOCK(done_mask_lock); + struct cpumask *done_mask = data; - cnt += sprintf(&page[cnt], "state: %d /", rcu_expedited_state); - for_each_online_cpu(cpu) { - cnt += sprintf(&page[cnt], " %d:%d", - cpu, per_cpu(rcu_migration_req, cpu).dest_cpu); + if (done_mask) { + spin_lock(&done_mask_lock); + cpumask_set_cpu(smp_processor_id(), done_mask); + spin_unlock(&done_mask_lock); } - cnt += sprintf(&page[cnt], "\n"); - return cnt; + return 0; } -EXPORT_SYMBOL_GPL(rcu_expedited_torture_stats); - -static long synchronize_sched_expedited_count; /* * Wait for an rcu-sched grace period to elapse, but use "big hammer" @@ -9104,60 +8976,55 @@ static long synchronize_sched_expedited_count; */ void synchronize_sched_expedited(void) { - int cpu; - unsigned long flags; - bool need_full_sync = 0; - struct rq *rq; - struct migration_req *req; - long snap; - int trycount = 0; + cpumask_var_t done_mask_var; + struct cpumask *done_mask = NULL; + int snap, trycount = 0; + + /* + * done_mask is used to check that all cpus actually have + * finished running the stopper, which is guaranteed by + * stop_cpus() if it's called with cpu hotplug blocked. Keep + * the paranoia for now but it's best effort if cpumask is off + * stack. + */ + if (zalloc_cpumask_var(&done_mask_var, GFP_ATOMIC)) + done_mask = done_mask_var; smp_mb(); /* ensure prior mod happens before capturing snap. */ - snap = ACCESS_ONCE(synchronize_sched_expedited_count) + 1; + snap = atomic_read(&synchronize_sched_expedited_count) + 1; get_online_cpus(); - while (!mutex_trylock(&rcu_sched_expedited_mutex)) { + while (try_stop_cpus(cpu_online_mask, + synchronize_sched_expedited_cpu_stop, + done_mask) == -EAGAIN) { put_online_cpus(); if (trycount++ < 10) udelay(trycount * num_online_cpus()); else { synchronize_sched(); - return; + goto free_out; } - if (ACCESS_ONCE(synchronize_sched_expedited_count) - snap > 0) { + if (atomic_read(&synchronize_sched_expedited_count) - snap > 0) { smp_mb(); /* ensure test happens before caller kfree */ - return; + goto free_out; } get_online_cpus(); } - rcu_expedited_state = RCU_EXPEDITED_STATE_POST; - for_each_online_cpu(cpu) { - rq = cpu_rq(cpu); - req = &per_cpu(rcu_migration_req, cpu); - init_completion(&req->done); - req->task = NULL; - req->dest_cpu = RCU_MIGRATION_NEED_QS; - raw_spin_lock_irqsave(&rq->lock, flags); - list_add(&req->list, &rq->migration_queue); - raw_spin_unlock_irqrestore(&rq->lock, flags); - wake_up_process(rq->migration_thread); - } - for_each_online_cpu(cpu) { - rcu_expedited_state = cpu; - req = &per_cpu(rcu_migration_req, cpu); - rq = cpu_rq(cpu); - wait_for_completion(&req->done); - raw_spin_lock_irqsave(&rq->lock, flags); - if (unlikely(req->dest_cpu == RCU_MIGRATION_MUST_SYNC)) - need_full_sync = 1; - req->dest_cpu = RCU_MIGRATION_IDLE; - raw_spin_unlock_irqrestore(&rq->lock, flags); - } - rcu_expedited_state = RCU_EXPEDITED_STATE_IDLE; - synchronize_sched_expedited_count++; - mutex_unlock(&rcu_sched_expedited_mutex); + atomic_inc(&synchronize_sched_expedited_count); + if (done_mask) + cpumask_xor(done_mask, done_mask, cpu_online_mask); put_online_cpus(); - if (need_full_sync) + + /* paranoia - this can't happen */ + if (done_mask && cpumask_weight(done_mask)) { + char buf[80]; + + cpulist_scnprintf(buf, sizeof(buf), done_mask); + WARN_ONCE(1, "synchronize_sched_expedited: cpu online and done masks disagree on %d cpus: %s\n", + cpumask_weight(done_mask), buf); synchronize_sched(); + } +free_out: + free_cpumask_var(done_mask_var); } EXPORT_SYMBOL_GPL(synchronize_sched_expedited); diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index cbd8b8a296d..217e4a9393e 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -2798,6 +2798,8 @@ static int need_active_balance(struct sched_domain *sd, int sd_idle, int idle) return unlikely(sd->nr_balance_failed > sd->cache_nice_tries+2); } +static int active_load_balance_cpu_stop(void *data); + /* * Check this_cpu to ensure it is balanced within domain. Attempt to move * tasks if there is an imbalance. @@ -2887,8 +2889,9 @@ redo: if (need_active_balance(sd, sd_idle, idle)) { raw_spin_lock_irqsave(&busiest->lock, flags); - /* don't kick the migration_thread, if the curr - * task on busiest cpu can't be moved to this_cpu + /* don't kick the active_load_balance_cpu_stop, + * if the curr task on busiest cpu can't be + * moved to this_cpu */ if (!cpumask_test_cpu(this_cpu, &busiest->curr->cpus_allowed)) { @@ -2898,14 +2901,22 @@ redo: goto out_one_pinned; } + /* + * ->active_balance synchronizes accesses to + * ->active_balance_work. Once set, it's cleared + * only after active load balance is finished. + */ if (!busiest->active_balance) { busiest->active_balance = 1; busiest->push_cpu = this_cpu; active_balance = 1; } raw_spin_unlock_irqrestore(&busiest->lock, flags); + if (active_balance) - wake_up_process(busiest->migration_thread); + stop_one_cpu_nowait(cpu_of(busiest), + active_load_balance_cpu_stop, busiest, + &busiest->active_balance_work); /* * We've kicked active balancing, reset the failure @@ -3012,24 +3023,29 @@ static void idle_balance(int this_cpu, struct rq *this_rq) } /* - * active_load_balance is run by migration threads. It pushes running tasks - * off the busiest CPU onto idle CPUs. It requires at least 1 task to be - * running on each physical CPU where possible, and avoids physical / - * logical imbalances. - * - * Called with busiest_rq locked. + * active_load_balance_cpu_stop is run by cpu stopper. It pushes + * running tasks off the busiest CPU onto idle CPUs. It requires at + * least 1 task to be running on each physical CPU where possible, and + * avoids physical / logical imbalances. */ -static void active_load_balance(struct rq *busiest_rq, int busiest_cpu) +static int active_load_balance_cpu_stop(void *data) { + struct rq *busiest_rq = data; + int busiest_cpu = cpu_of(busiest_rq); int target_cpu = busiest_rq->push_cpu; + struct rq *target_rq = cpu_rq(target_cpu); struct sched_domain *sd; - struct rq *target_rq; + + raw_spin_lock_irq(&busiest_rq->lock); + + /* make sure the requested cpu hasn't gone down in the meantime */ + if (unlikely(busiest_cpu != smp_processor_id() || + !busiest_rq->active_balance)) + goto out_unlock; /* Is there any task to move? */ if (busiest_rq->nr_running <= 1) - return; - - target_rq = cpu_rq(target_cpu); + goto out_unlock; /* * This condition is "impossible", if it occurs @@ -3058,6 +3074,10 @@ static void active_load_balance(struct rq *busiest_rq, int busiest_cpu) schedstat_inc(sd, alb_failed); } double_unlock_balance(busiest_rq, target_rq); +out_unlock: + busiest_rq->active_balance = 0; + raw_spin_unlock_irq(&busiest_rq->lock); + return 0; } #ifdef CONFIG_NO_HZ diff --git a/kernel/stop_machine.c b/kernel/stop_machine.c index 884c7a1afee..5b20141a5ec 100644 --- a/kernel/stop_machine.c +++ b/kernel/stop_machine.c @@ -301,7 +301,7 @@ static int __cpuinit cpu_stop_cpu_callback(struct notifier_block *nfb, case CPU_UP_PREPARE: BUG_ON(stopper->thread || stopper->enabled || !list_empty(&stopper->works)); - p = kthread_create(cpu_stopper_thread, stopper, "stopper/%d", + p = kthread_create(cpu_stopper_thread, stopper, "migration/%d", cpu); if (IS_ERR(p)) return NOTIFY_BAD; -- cgit v1.2.3-70-g09d2 From b75396a4ea473a2cd4f2fb99a81b2289265a8021 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 22 Mar 2010 05:43:08 -0300 Subject: V4L/DVB: feature-removal: announce videotext.h removal Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/feature-removal-schedule.txt | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'Documentation') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index ed511af0f79..05df0b7514b 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -589,3 +589,26 @@ Why: Useful in 2003, implementation is a hack. Generally invoked by accident today. Seen as doing more harm than good. Who: Len Brown + +---------------------------- + +What: video4linux /dev/vtx teletext API support +When: 2.6.35 +Files: drivers/media/video/saa5246a.c drivers/media/video/saa5249.c + include/linux/videotext.h +Why: The vtx device nodes have been superseded by vbi device nodes + for many years. No applications exist that use the vtx support. + Of the two i2c drivers that actually support this API the saa5249 + has been impossible to use for a year now and no known hardware + that supports this device exists. The saa5246a is theoretically + supported by the old mxb boards, but it never actually worked. + + In summary: there is no hardware that can use this API and there + are no applications actually implementing this API. + + The vtx support still reserves minors 192-223 and we would really + like to reuse those for upcoming new functionality. In the unlikely + event that new hardware appears that wants to use the functionality + provided by the vtx API, then that functionality should be build + around the sliced VBI API instead. +Who: Hans Verkuil -- cgit v1.2.3-70-g09d2 From 277a6a34175dcb0ee98dceee619e0e3190347a25 Mon Sep 17 00:00:00 2001 From: Ryusuke Konishi Date: Fri, 2 Apr 2010 18:02:33 +0900 Subject: nilfs2: change default of 'errors' mount option to 'remount-ro' mode Like ext3, nilfs has 'errors' mount option to allow specifying desired behavior on severe errors. Currently, the default action is 'errors=continue' and has potential to advance filesystem corruption for severe errors. This will change the action to 'errors=remount-ro' to avoid the issue. Signed-off-by: Ryusuke Konishi --- Documentation/filesystems/nilfs2.txt | 4 ++-- fs/nilfs2/super.c | 6 +++--- 2 files changed, 5 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/nilfs2.txt b/Documentation/filesystems/nilfs2.txt index cf6d0d85ca8..d3e7673995e 100644 --- a/Documentation/filesystems/nilfs2.txt +++ b/Documentation/filesystems/nilfs2.txt @@ -50,8 +50,8 @@ NILFS2 supports the following mount options: (*) == default nobarrier Disables barriers. -errors=continue(*) Keep going on a filesystem error. -errors=remount-ro Remount the filesystem read-only on an error. +errors=continue Keep going on a filesystem error. +errors=remount-ro(*) Remount the filesystem read-only on an error. errors=panic Panic and halt the machine if an error occurs. cp=n Specify the checkpoint-number of the snapshot to be mounted. Checkpoints and snapshots are listed by lscp diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index 48145f505a6..0b1758bf072 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -470,10 +470,10 @@ static int nilfs_show_options(struct seq_file *seq, struct vfsmount *vfs) if (nilfs_test_opt(sbi, SNAPSHOT)) seq_printf(seq, ",cp=%llu", (unsigned long long int)sbi->s_snapshot_cno); - if (nilfs_test_opt(sbi, ERRORS_RO)) - seq_printf(seq, ",errors=remount-ro"); if (nilfs_test_opt(sbi, ERRORS_PANIC)) seq_printf(seq, ",errors=panic"); + if (nilfs_test_opt(sbi, ERRORS_CONT)) + seq_printf(seq, ",errors=continue"); if (nilfs_test_opt(sbi, STRICT_ORDER)) seq_printf(seq, ",order=strict"); if (nilfs_test_opt(sbi, NORECOVERY)) @@ -631,7 +631,7 @@ nilfs_set_default_options(struct nilfs_sb_info *sbi, struct nilfs_super_block *sbp) { sbi->s_mount_opt = - NILFS_MOUNT_ERRORS_CONT | NILFS_MOUNT_BARRIER; + NILFS_MOUNT_ERRORS_RO | NILFS_MOUNT_BARRIER; } static int nilfs_setup_super(struct nilfs_sb_info *sbi) -- cgit v1.2.3-70-g09d2 From a20971b201ac1fcd236400942c98b0106c42c70a Mon Sep 17 00:00:00 2001 From: Krzysztof Helt Date: Mon, 10 May 2010 09:47:32 +0200 Subject: ALSA: Merge es1688 and es968 drivers The ESS ES968 chip is nothing more then a PnP companion for a non-PnP audio chip. It was paired with non-PnP ESS' chips: ES688 and ES1688. The ESS' audio chips are handled by the es1688 driver in native mode. The PnP cards are handled by the ES968 driver in SB compatible mode. Move the ES968 chip handling to the es1688 driver so the driver can handle both PnP and non-PnP cards. The es968 is removed. Also, a new PnP id is added for the card I acquired (the change was tested on this card). Signed-off-by: Krzysztof Helt Signed-off-by: Takashi Iwai --- Documentation/sound/alsa/ALSA-Configuration.txt | 21 +- include/sound/es1688.h | 1 + sound/isa/Kconfig | 16 +- sound/isa/es1688/es1688.c | 205 +++++++++++++++++--- sound/isa/es1688/es1688_lib.c | 3 +- sound/isa/sb/Makefile | 2 - sound/isa/sb/es968.c | 248 ------------------------ 7 files changed, 190 insertions(+), 306 deletions(-) delete mode 100644 sound/isa/sb/es968.c (limited to 'Documentation') diff --git a/Documentation/sound/alsa/ALSA-Configuration.txt b/Documentation/sound/alsa/ALSA-Configuration.txt index dc681badca6..2075bbb8b3e 100644 --- a/Documentation/sound/alsa/ALSA-Configuration.txt +++ b/Documentation/sound/alsa/ALSA-Configuration.txt @@ -632,28 +632,23 @@ Prior to version 0.9.0rc4 options had a 'snd_' prefix. This was removed. The power-management is supported. - Module snd-es968 - ---------------- - - Module for sound cards based on ESS ES968 chip (PnP only). - - This module supports multiple cards, PnP and autoprobe. - - The power-management is supported. - Module snd-es1688 ----------------- Module for ESS AudioDrive ES-1688 and ES-688 sound cards. - port - port # for ES-1688 chip (0x220,0x240,0x260) - fm_port - port # for OPL3 (option; share the same port as default) + isapnp - ISA PnP detection - 0 = disable, 1 = enable (default) mpu_port - port # for MPU-401 port (0x300,0x310,0x320,0x330), -1 = disable (default) - irq - IRQ # for ES-1688 chip (5,7,9,10) mpu_irq - IRQ # for MPU-401 port (5,7,9,10) + fm_port - port # for OPL3 (option; share the same port as default) + + with isapnp=0, the following additional options are available: + port - port # for ES-1688 chip (0x220,0x240,0x260) + irq - IRQ # for ES-1688 chip (5,7,9,10) dma8 - DMA # for ES-1688 chip (0,1,3) - This module supports multiple cards and autoprobe (without MPU-401 port). + This module supports multiple cards and autoprobe (without MPU-401 port) + and PnP with the ES968 chip. Module snd-es18xx ----------------- diff --git a/include/sound/es1688.h b/include/sound/es1688.h index 4c29572effb..3ec7ecbe250 100644 --- a/include/sound/es1688.h +++ b/include/sound/es1688.h @@ -117,5 +117,6 @@ int snd_es1688_create(struct snd_card *card, int snd_es1688_pcm(struct snd_card *card, struct snd_es1688 *chip, int device, struct snd_pcm **rpcm); int snd_es1688_mixer(struct snd_card *card, struct snd_es1688 *chip); +int snd_es1688_reset(struct snd_es1688 *chip); #endif /* __SOUND_ES1688_H */ diff --git a/sound/isa/Kconfig b/sound/isa/Kconfig index 755a0a5f0e3..c6990c68079 100644 --- a/sound/isa/Kconfig +++ b/sound/isa/Kconfig @@ -128,26 +128,14 @@ config SND_CS4236 To compile this driver as a module, choose M here: the module will be called snd-cs4236. -config SND_ES968 - tristate "Generic ESS ES968 driver" - depends on PNP - select ISAPNP - select SND_MPU401_UART - select SND_SB8_DSP - help - Say Y here to include support for ESS AudioDrive ES968 chips. - - To compile this driver as a module, choose M here: the module - will be called snd-es968. - config SND_ES1688 - tristate "Generic ESS ES688/ES1688 driver" + tristate "Generic ESS ES688/ES1688 and ES968 PnP driver" select SND_OPL3_LIB select SND_MPU401_UART select SND_PCM help Say Y here to include support for ESS AudioDrive ES688 or - ES1688 chips. + ES1688 chips. Also, this module support cards with ES968 PnP chip. To compile this driver as a module, choose M here: the module will be called snd-es1688. diff --git a/sound/isa/es1688/es1688.c b/sound/isa/es1688/es1688.c index 281679493fb..fdcce311f80 100644 --- a/sound/isa/es1688/es1688.c +++ b/sound/isa/es1688/es1688.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -45,8 +46,13 @@ MODULE_SUPPORTED_DEVICE("{{ESS,ES688 PnP AudioDrive,pnp:ESS0100}," "{ESS,ES688 AudioDrive,pnp:ESS6881}," "{ESS,ES1688 AudioDrive,pnp:ESS1681}}"); +MODULE_ALIAS("snd_es968"); + static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ +#ifdef CONFIG_PNP +static int isapnp[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; +#endif static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE; /* Enable this card */ static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* 0x220,0x240,0x260 */ static long fm_port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* Usually 0x388 */ @@ -60,6 +66,10 @@ MODULE_PARM_DESC(index, "Index value for " CRD_NAME " soundcard."); module_param_array(id, charp, NULL, 0444); MODULE_PARM_DESC(id, "ID string for " CRD_NAME " soundcard."); module_param_array(enable, bool, NULL, 0444); +#ifdef CONFIG_PNP +module_param_array(isapnp, bool, NULL, 0444); +MODULE_PARM_DESC(isapnp, "PnP detection for specified soundcard."); +#endif MODULE_PARM_DESC(enable, "Enable " CRD_NAME " soundcard."); module_param_array(port, long, NULL, 0444); MODULE_PARM_DESC(port, "Port # for " CRD_NAME " driver."); @@ -74,14 +84,21 @@ MODULE_PARM_DESC(mpu_irq, "MPU-401 IRQ # for " CRD_NAME " driver."); module_param_array(dma8, int, NULL, 0444); MODULE_PARM_DESC(dma8, "8-bit DMA # for " CRD_NAME " driver."); +#ifdef CONFIG_PNP +#define is_isapnp_selected(dev) isapnp[dev] +#else +#define is_isapnp_selected(dev) 0 +#endif + static int __devinit snd_es1688_match(struct device *dev, unsigned int n) { - return enable[n]; + return enable[n] && !is_isapnp_selected(n); } static int __devinit snd_es1688_legacy_create(struct snd_card *card, - struct snd_es1688 *chip, struct device *dev, unsigned int n) + struct device *dev, unsigned int n) { + struct snd_es1688 *chip = card->private_data; static long possible_ports[] = {0x220, 0x240, 0x260}; static int possible_irqs[] = {5, 9, 10, 7, -1}; static int possible_dmas[] = {1, 3, 0, -1}; @@ -117,32 +134,20 @@ static int __devinit snd_es1688_legacy_create(struct snd_card *card, return error; } -static int __devinit snd_es1688_probe(struct device *dev, unsigned int n) +static int __devinit snd_es1688_probe(struct snd_card *card, unsigned int n) { - struct snd_card *card; - struct snd_es1688 *chip; + struct snd_es1688 *chip = card->private_data; struct snd_opl3 *opl3; struct snd_pcm *pcm; int error; - error = snd_card_create(index[n], id[n], THIS_MODULE, - sizeof(struct snd_es1688), &card); - if (error < 0) - return error; - - chip = card->private_data; - - error = snd_es1688_legacy_create(card, chip, dev, n); - if (error < 0) - goto out; - error = snd_es1688_pcm(card, chip, 0, &pcm); if (error < 0) - goto out; + return error; error = snd_es1688_mixer(card, chip); if (error < 0) - goto out; + return error; strcpy(card->driver, "ES1688"); strcpy(card->shortname, pcm->name); @@ -155,12 +160,12 @@ static int __devinit snd_es1688_probe(struct device *dev, unsigned int n) if (fm_port[n] > 0) { if (snd_opl3_create(card, fm_port[n], fm_port[n] + 2, OPL3_HW_OPL3, 0, &opl3) < 0) - dev_warn(dev, + dev_warn(card->dev, "opl3 not detected at 0x%lx\n", fm_port[n]); else { error = snd_opl3_hwdep_new(opl3, 0, 1, NULL); if (error < 0) - goto out; + return error; } } @@ -170,23 +175,41 @@ static int __devinit snd_es1688_probe(struct device *dev, unsigned int n) chip->mpu_port, 0, mpu_irq[n], IRQF_DISABLED, NULL); if (error < 0) - goto out; + return error; } + return snd_card_register(card); +} + +static int __devinit snd_es1688_isa_probe(struct device *dev, unsigned int n) +{ + struct snd_card *card; + int error; + + error = snd_card_create(index[n], id[n], THIS_MODULE, + sizeof(struct snd_es1688), &card); + if (error < 0) + return error; + + error = snd_es1688_legacy_create(card, dev, n); + if (error < 0) + goto out; + snd_card_set_dev(card, dev); - error = snd_card_register(card); + error = snd_es1688_probe(card, n); if (error < 0) goto out; dev_set_drvdata(dev, card); - return 0; -out: snd_card_free(card); + return 0; +out: + snd_card_free(card); return error; } -static int __devexit snd_es1688_remove(struct device *dev, unsigned int n) +static int __devexit snd_es1688_isa_remove(struct device *dev, unsigned int n) { snd_card_free(dev_get_drvdata(dev)); dev_set_drvdata(dev, NULL); @@ -195,8 +218,8 @@ static int __devexit snd_es1688_remove(struct device *dev, unsigned int n) static struct isa_driver snd_es1688_driver = { .match = snd_es1688_match, - .probe = snd_es1688_probe, - .remove = __devexit_p(snd_es1688_remove), + .probe = snd_es1688_isa_probe, + .remove = __devexit_p(snd_es1688_isa_remove), #if 0 /* FIXME */ .suspend = snd_es1688_suspend, .resume = snd_es1688_resume, @@ -206,14 +229,140 @@ static struct isa_driver snd_es1688_driver = { } }; +static int snd_es968_pnp_is_probed; + +#ifdef CONFIG_PNP +static int __devinit snd_card_es968_pnp(struct snd_card *card, unsigned int n, + struct pnp_card_link *pcard, + const struct pnp_card_device_id *pid) +{ + struct snd_es1688 *chip = card->private_data; + struct pnp_dev *pdev; + int error; + + pdev = pnp_request_card_device(pcard, pid->devs[0].id, NULL); + if (pdev == NULL) + return -ENODEV; + + error = pnp_activate_dev(pdev); + if (error < 0) { + snd_printk(KERN_ERR "ES968 pnp configure failure\n"); + return error; + } + port[n] = pnp_port_start(pdev, 0); + dma8[n] = pnp_dma(pdev, 0); + irq[n] = pnp_irq(pdev, 0); + + return snd_es1688_create(card, chip, port[n], mpu_port[n], irq[n], + mpu_irq[n], dma8[n], ES1688_HW_AUTO); +} + +static int __devinit snd_es968_pnp_detect(struct pnp_card_link *pcard, + const struct pnp_card_device_id *pid) +{ + struct snd_card *card; + static unsigned int dev; + int error; + struct snd_es1688 *chip; + + if (snd_es968_pnp_is_probed) + return -EBUSY; + for ( ; dev < SNDRV_CARDS; dev++) { + if (enable[dev] && isapnp[dev]) + break; + } + + error = snd_card_create(index[dev], id[dev], THIS_MODULE, + sizeof(struct snd_es1688), &card); + if (error < 0) + return error; + chip = card->private_data; + + error = snd_card_es968_pnp(card, dev, pcard, pid); + if (error < 0) { + snd_card_free(card); + return error; + } + snd_card_set_dev(card, &pcard->card->dev); + error = snd_es1688_probe(card, dev); + if (error < 0) + return error; + pnp_set_card_drvdata(pcard, card); + snd_es968_pnp_is_probed = 1; + return 0; +} + +static void __devexit snd_es968_pnp_remove(struct pnp_card_link * pcard) +{ + snd_card_free(pnp_get_card_drvdata(pcard)); + pnp_set_card_drvdata(pcard, NULL); + snd_es968_pnp_is_probed = 0; +} + +#ifdef CONFIG_PM +static int snd_es968_pnp_suspend(struct pnp_card_link *pcard, + pm_message_t state) +{ + struct snd_card *card = pnp_get_card_drvdata(pcard); + struct snd_es1688 *chip = card->private_data; + + snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); + snd_pcm_suspend_all(chip->pcm); + return 0; +} + +static int snd_es968_pnp_resume(struct pnp_card_link *pcard) +{ + struct snd_card *card = pnp_get_card_drvdata(pcard); + struct snd_es1688 *chip = card->private_data; + + snd_es1688_reset(chip); + snd_power_change_state(card, SNDRV_CTL_POWER_D0); + return 0; +} +#endif + +static struct pnp_card_device_id snd_es968_pnpids[] = { + { .id = "ESS0968", .devs = { { "@@@0968" }, } }, + { .id = "ESS0968", .devs = { { "ESS0968" }, } }, + { .id = "", } /* end */ +}; + +MODULE_DEVICE_TABLE(pnp_card, snd_es968_pnpids); + +static struct pnp_card_driver es968_pnpc_driver = { + .flags = PNP_DRIVER_RES_DISABLE, + .name = DEV_NAME " PnP", + .id_table = snd_es968_pnpids, + .probe = snd_es968_pnp_detect, + .remove = __devexit_p(snd_es968_pnp_remove), +#ifdef CONFIG_PM + .suspend = snd_es968_pnp_suspend, + .resume = snd_es968_pnp_resume, +#endif +}; +#endif + static int __init alsa_card_es1688_init(void) { +#ifdef CONFIG_PNP + pnp_register_card_driver(&es968_pnpc_driver); + if (snd_es968_pnp_is_probed) + return 0; + pnp_unregister_card_driver(&es968_pnpc_driver); +#endif return isa_register_driver(&snd_es1688_driver, SNDRV_CARDS); } static void __exit alsa_card_es1688_exit(void) { - isa_unregister_driver(&snd_es1688_driver); + if (!snd_es968_pnp_is_probed) { + isa_unregister_driver(&snd_es1688_driver); + return; + } +#ifdef CONFIG_PNP + pnp_unregister_card_driver(&es968_pnpc_driver); +#endif } module_init(alsa_card_es1688_init); diff --git a/sound/isa/es1688/es1688_lib.c b/sound/isa/es1688/es1688_lib.c index fdd440417bf..07676200496 100644 --- a/sound/isa/es1688/es1688_lib.c +++ b/sound/isa/es1688/es1688_lib.c @@ -99,7 +99,7 @@ static unsigned char snd_es1688_mixer_read(struct snd_es1688 *chip, unsigned cha return result; } -static int snd_es1688_reset(struct snd_es1688 *chip) +int snd_es1688_reset(struct snd_es1688 *chip) { int i; @@ -115,6 +115,7 @@ static int snd_es1688_reset(struct snd_es1688 *chip) snd_es1688_dsp_command(chip, 0xc6); /* enable extended mode */ return 0; } +EXPORT_SYMBOL(snd_es1688_reset); static int snd_es1688_probe(struct snd_es1688 *chip) { diff --git a/sound/isa/sb/Makefile b/sound/isa/sb/Makefile index af366968178..08b9fb97465 100644 --- a/sound/isa/sb/Makefile +++ b/sound/isa/sb/Makefile @@ -11,7 +11,6 @@ snd-sb8-objs := sb8.o snd-sb16-objs := sb16.o snd-sbawe-objs := sbawe.o emu8000.o snd-emu8000-synth-objs := emu8000_synth.o emu8000_callback.o emu8000_patch.o emu8000_pcm.o -snd-es968-objs := es968.o snd-jazz16-objs := jazz16.o # Toplevel Module Dependency @@ -21,7 +20,6 @@ obj-$(CONFIG_SND_SB8_DSP) += snd-sb8-dsp.o obj-$(CONFIG_SND_SB8) += snd-sb8.o obj-$(CONFIG_SND_SB16) += snd-sb16.o obj-$(CONFIG_SND_SBAWE) += snd-sbawe.o -obj-$(CONFIG_SND_ES968) += snd-es968.o obj-$(CONFIG_SND_JAZZ16) += snd-jazz16.o ifeq ($(CONFIG_SND_SB16_CSP),y) obj-$(CONFIG_SND_SB16) += snd-sb16-csp.o diff --git a/sound/isa/sb/es968.c b/sound/isa/sb/es968.c deleted file mode 100644 index ff18286fef9..00000000000 --- a/sound/isa/sb/es968.c +++ /dev/null @@ -1,248 +0,0 @@ - -/* - card-es968.c - driver for ESS AudioDrive ES968 based soundcards. - Copyright (C) 1999 by Massimo Piccioni - - Thanks to Pierfrancesco 'qM2' Passerini. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA -*/ - -#include -#include -#include -#include -#include -#include -#include - -#define PFX "es968: " - -MODULE_AUTHOR("Massimo Piccioni "); -MODULE_DESCRIPTION("ESS AudioDrive ES968"); -MODULE_LICENSE("GPL"); -MODULE_SUPPORTED_DEVICE("{{ESS,AudioDrive ES968}}"); - -static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; /* Index 0-MAX */ -static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; /* ID for this card */ -static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_ISAPNP; /* Enable this card */ -static long port[SNDRV_CARDS] = SNDRV_DEFAULT_PORT; /* PnP setup */ -static int irq[SNDRV_CARDS] = SNDRV_DEFAULT_IRQ; /* Pnp setup */ -static int dma8[SNDRV_CARDS] = SNDRV_DEFAULT_DMA; /* PnP setup */ - -module_param_array(index, int, NULL, 0444); -MODULE_PARM_DESC(index, "Index value for es968 based soundcard."); -module_param_array(id, charp, NULL, 0444); -MODULE_PARM_DESC(id, "ID string for es968 based soundcard."); -module_param_array(enable, bool, NULL, 0444); -MODULE_PARM_DESC(enable, "Enable es968 based soundcard."); - -struct snd_card_es968 { - struct pnp_dev *dev; - struct snd_sb *chip; -}; - -static struct pnp_card_device_id snd_es968_pnpids[] = { - { .id = "ESS0968", .devs = { { "@@@0968" }, } }, - { .id = "", } /* end */ -}; - -MODULE_DEVICE_TABLE(pnp_card, snd_es968_pnpids); - -#define DRIVER_NAME "snd-card-es968" - -static irqreturn_t snd_card_es968_interrupt(int irq, void *dev_id) -{ - struct snd_sb *chip = dev_id; - - if (chip->open & SB_OPEN_PCM) { - return snd_sb8dsp_interrupt(chip); - } else { - return snd_sb8dsp_midi_interrupt(chip); - } -} - -static int __devinit snd_card_es968_pnp(int dev, struct snd_card_es968 *acard, - struct pnp_card_link *card, - const struct pnp_card_device_id *id) -{ - struct pnp_dev *pdev; - int err; - - acard->dev = pnp_request_card_device(card, id->devs[0].id, NULL); - if (acard->dev == NULL) - return -ENODEV; - - pdev = acard->dev; - - err = pnp_activate_dev(pdev); - if (err < 0) { - snd_printk(KERN_ERR PFX "AUDIO pnp configure failure\n"); - return err; - } - port[dev] = pnp_port_start(pdev, 0); - dma8[dev] = pnp_dma(pdev, 0); - irq[dev] = pnp_irq(pdev, 0); - - return 0; -} - -static int __devinit snd_card_es968_probe(int dev, - struct pnp_card_link *pcard, - const struct pnp_card_device_id *pid) -{ - int error; - struct snd_sb *chip; - struct snd_card *card; - struct snd_card_es968 *acard; - - error = snd_card_create(index[dev], id[dev], THIS_MODULE, - sizeof(struct snd_card_es968), &card); - if (error < 0) - return error; - acard = card->private_data; - if ((error = snd_card_es968_pnp(dev, acard, pcard, pid))) { - snd_card_free(card); - return error; - } - snd_card_set_dev(card, &pcard->card->dev); - - if ((error = snd_sbdsp_create(card, port[dev], - irq[dev], - snd_card_es968_interrupt, - dma8[dev], - -1, - SB_HW_AUTO, &chip)) < 0) { - snd_card_free(card); - return error; - } - acard->chip = chip; - - if ((error = snd_sb8dsp_pcm(chip, 0, NULL)) < 0) { - snd_card_free(card); - return error; - } - - if ((error = snd_sbmixer_new(chip)) < 0) { - snd_card_free(card); - return error; - } - - if ((error = snd_sb8dsp_midi(chip, 0, NULL)) < 0) { - snd_card_free(card); - return error; - } - - strcpy(card->driver, "ES968"); - strcpy(card->shortname, "ESS ES968"); - sprintf(card->longname, "%s soundcard, %s at 0x%lx, irq %d, dma %d", - card->shortname, chip->name, chip->port, irq[dev], dma8[dev]); - - if ((error = snd_card_register(card)) < 0) { - snd_card_free(card); - return error; - } - pnp_set_card_drvdata(pcard, card); - return 0; -} - -static unsigned int __devinitdata es968_devices; - -static int __devinit snd_es968_pnp_detect(struct pnp_card_link *card, - const struct pnp_card_device_id *id) -{ - static int dev; - int res; - - for ( ; dev < SNDRV_CARDS; dev++) { - if (!enable[dev]) - continue; - res = snd_card_es968_probe(dev, card, id); - if (res < 0) - return res; - dev++; - es968_devices++; - return 0; - } - return -ENODEV; -} - -static void __devexit snd_es968_pnp_remove(struct pnp_card_link * pcard) -{ - snd_card_free(pnp_get_card_drvdata(pcard)); - pnp_set_card_drvdata(pcard, NULL); -} - -#ifdef CONFIG_PM -static int snd_es968_pnp_suspend(struct pnp_card_link *pcard, pm_message_t state) -{ - struct snd_card *card = pnp_get_card_drvdata(pcard); - struct snd_card_es968 *acard = card->private_data; - struct snd_sb *chip = acard->chip; - - snd_power_change_state(card, SNDRV_CTL_POWER_D3hot); - snd_pcm_suspend_all(chip->pcm); - snd_sbmixer_suspend(chip); - return 0; -} - -static int snd_es968_pnp_resume(struct pnp_card_link *pcard) -{ - struct snd_card *card = pnp_get_card_drvdata(pcard); - struct snd_card_es968 *acard = card->private_data; - struct snd_sb *chip = acard->chip; - - snd_sbdsp_reset(chip); - snd_sbmixer_resume(chip); - snd_power_change_state(card, SNDRV_CTL_POWER_D0); - return 0; -} -#endif - -static struct pnp_card_driver es968_pnpc_driver = { - .flags = PNP_DRIVER_RES_DISABLE, - .name = "es968", - .id_table = snd_es968_pnpids, - .probe = snd_es968_pnp_detect, - .remove = __devexit_p(snd_es968_pnp_remove), -#ifdef CONFIG_PM - .suspend = snd_es968_pnp_suspend, - .resume = snd_es968_pnp_resume, -#endif -}; - -static int __init alsa_card_es968_init(void) -{ - int err = pnp_register_card_driver(&es968_pnpc_driver); - if (err) - return err; - - if (!es968_devices) { - pnp_unregister_card_driver(&es968_pnpc_driver); -#ifdef MODULE - snd_printk(KERN_ERR "no ES968 based soundcards found\n"); -#endif - return -ENODEV; - } - return 0; -} - -static void __exit alsa_card_es968_exit(void) -{ - pnp_unregister_card_driver(&es968_pnpc_driver); -} - -module_init(alsa_card_es968_init) -module_exit(alsa_card_es968_exit) -- cgit v1.2.3-70-g09d2 From eb14120f743d29744d9475bffec56ff4ad43a749 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Sun, 7 Mar 2010 12:21:16 +0100 Subject: pcmcia: re-work pcmcia_request_irq() Instead of the old pcmcia_request_irq() interface, drivers may now choose between: - calling request_irq/free_irq directly. Use the IRQ from *p_dev->irq. - use pcmcia_request_irq(p_dev, handler_t); the PCMCIA core will clean up automatically on calls to pcmcia_disable_device() or device ejection. - drivers still not capable of IRQF_SHARED (or not telling us so) may use the deprecated pcmcia_request_exclusive_irq() for the time being; they might receive a shared IRQ nonetheless. CC: linux-bluetooth@vger.kernel.org CC: netdev@vger.kernel.org CC: linux-wireless@vger.kernel.org CC: linux-serial@vger.kernel.org CC: alsa-devel@alsa-project.org CC: linux-usb@vger.kernel.org CC: linux-ide@vger.kernel.org Signed-off-by: Dominik Brodowski --- Documentation/pcmcia/driver-changes.txt | 10 ++ drivers/ata/pata_pcmcia.c | 6 +- drivers/bluetooth/bluecard_cs.c | 7 +- drivers/bluetooth/bt3c_cs.c | 7 +- drivers/bluetooth/btuart_cs.c | 7 +- drivers/bluetooth/dtl1_cs.c | 7 +- drivers/char/pcmcia/ipwireless/main.c | 11 +- drivers/char/pcmcia/synclink_cs.c | 12 +- drivers/ide/ide-cs.c | 8 +- drivers/isdn/hardware/avm/avm_cs.c | 17 +-- drivers/isdn/hisax/avma1_cs.c | 12 +- drivers/isdn/hisax/elsa_cs.c | 13 +-- drivers/isdn/hisax/sedlbauer_cs.c | 23 +--- drivers/isdn/hisax/teles_cs.c | 13 +-- drivers/net/pcmcia/3c574_cs.c | 6 +- drivers/net/pcmcia/3c589_cs.c | 7 +- drivers/net/pcmcia/axnet_cs.c | 13 +-- drivers/net/pcmcia/com20020_cs.c | 8 +- drivers/net/pcmcia/fmvj18x_cs.c | 10 +- drivers/net/pcmcia/ibmtr_cs.c | 8 +- drivers/net/pcmcia/nmclan_cs.c | 6 +- drivers/net/pcmcia/pcnet_cs.c | 8 +- drivers/net/pcmcia/smc91c92_cs.c | 8 +- drivers/net/pcmcia/xirc2ps_cs.c | 7 +- drivers/net/wireless/airo_cs.c | 25 +---- drivers/net/wireless/atmel_cs.c | 28 +---- drivers/net/wireless/b43/pcmcia.c | 5 +- drivers/net/wireless/hostap/hostap_cs.c | 29 +---- drivers/net/wireless/libertas/if_cs.c | 21 +--- drivers/net/wireless/orinoco/orinoco_cs.c | 13 +-- drivers/net/wireless/orinoco/spectrum_cs.c | 13 +-- drivers/net/wireless/ray_cs.c | 8 +- drivers/net/wireless/wl3501_cs.c | 8 +- drivers/parport/parport_cs.c | 8 +- drivers/pcmcia/ds.c | 3 +- drivers/pcmcia/pcmcia_resource.c | 137 +++++++++-------------- drivers/scsi/pcmcia/aha152x_stub.c | 6 +- drivers/scsi/pcmcia/fdomain_stub.c | 6 +- drivers/scsi/pcmcia/nsp_cs.c | 20 +--- drivers/scsi/pcmcia/qlogic_stub.c | 10 +- drivers/scsi/pcmcia/sym53c500_cs.c | 6 +- drivers/serial/serial_cs.c | 27 ++--- drivers/ssb/main.c | 2 +- drivers/staging/comedi/drivers/cb_das16_cs.c | 26 ++--- drivers/staging/comedi/drivers/das08_cs.c | 16 +-- drivers/staging/comedi/drivers/ni_daq_700.c | 23 +--- drivers/staging/comedi/drivers/ni_daq_dio24.c | 23 +--- drivers/staging/comedi/drivers/ni_labpc_cs.c | 24 +--- drivers/staging/comedi/drivers/ni_mio_cs.c | 9 +- drivers/staging/comedi/drivers/quatech_daqp_cs.c | 22 +--- drivers/staging/netwave/netwave_cs.c | 8 +- drivers/staging/wavelan/wavelan_cs.c | 15 +-- drivers/staging/wlags49_h2/wl_cs.c | 9 +- drivers/usb/host/sl811_cs.c | 18 +-- include/pcmcia/cs.h | 7 -- include/pcmcia/ds.h | 11 +- sound/pcmcia/pdaudiocf/pdaudiocf.c | 9 +- sound/pcmcia/vx/vxpocket.c | 8 +- 58 files changed, 244 insertions(+), 593 deletions(-) (limited to 'Documentation') diff --git a/Documentation/pcmcia/driver-changes.txt b/Documentation/pcmcia/driver-changes.txt index 446f43b309d..3268a9ae727 100644 --- a/Documentation/pcmcia/driver-changes.txt +++ b/Documentation/pcmcia/driver-changes.txt @@ -1,4 +1,14 @@ This file details changes in 2.6 which affect PCMCIA card driver authors: +* New IRQ request rules (as of 2.6.35) + Instead of the old pcmcia_request_irq() interface, drivers may now + choose between: + - calling request_irq/free_irq directly. Use the IRQ from *p_dev->irq. + - use pcmcia_request_irq(p_dev, handler_t); the PCMCIA core will + clean up automatically on calls to pcmcia_disable_device() or + device ejection. + - drivers still not capable of IRQF_SHARED (or not telling us so) may + use the deprecated pcmcia_request_exclusive_irq() for the time + being; they might receive a shared IRQ nonetheless. * no cs_error / CS_CHECK / CONFIG_PCMCIA_DEBUG (as of 2.6.33) Instead of the cs_error() callback or the CS_CHECK() macro, please use diff --git a/drivers/ata/pata_pcmcia.c b/drivers/ata/pata_pcmcia.c index d94b8f0bd74..2aab1e0f663 100644 --- a/drivers/ata/pata_pcmcia.c +++ b/drivers/ata/pata_pcmcia.c @@ -268,7 +268,6 @@ static int pcmcia_init_one(struct pcmcia_device *pdev) pdev->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; pdev->io.Attributes2 = IO_DATA_PATH_WIDTH_8; pdev->io.IOAddrLines = 3; - pdev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; pdev->conf.Attributes = CONF_ENABLE_IRQ; pdev->conf.IntType = INT_MEMORY_AND_IO; @@ -293,8 +292,7 @@ static int pcmcia_init_one(struct pcmcia_device *pdev) } io_base = pdev->io.BasePort1; ctl_base = stk->ctl_base; - ret = pcmcia_request_irq(pdev, &pdev->irq); - if (ret) + if (!pdev->irq) goto failed; ret = pcmcia_request_configuration(pdev, &pdev->conf); @@ -344,7 +342,7 @@ static int pcmcia_init_one(struct pcmcia_device *pdev) } /* activate */ - ret = ata_host_activate(host, pdev->irq.AssignedIRQ, ata_sff_interrupt, + ret = ata_host_activate(host, pdev->irq, ata_sff_interrupt, IRQF_SHARED, &pcmcia_sht); if (ret) goto failed; diff --git a/drivers/bluetooth/bluecard_cs.c b/drivers/bluetooth/bluecard_cs.c index d9bf87ca9e8..a34653db07b 100644 --- a/drivers/bluetooth/bluecard_cs.c +++ b/drivers/bluetooth/bluecard_cs.c @@ -869,9 +869,6 @@ static int bluecard_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts1 = 8; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - - link->irq.Handler = bluecard_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -908,9 +905,9 @@ static int bluecard_config(struct pcmcia_device *link) if (i != 0) goto failed; - i = pcmcia_request_irq(link, &link->irq); + i = pcmcia_request_irq(link, bluecard_interrupt); if (i != 0) - link->irq.AssignedIRQ = 0; + goto failed; i = pcmcia_request_configuration(link, &link->conf); if (i != 0) diff --git a/drivers/bluetooth/bt3c_cs.c b/drivers/bluetooth/bt3c_cs.c index 027cb8bf650..1ad9694d445 100644 --- a/drivers/bluetooth/bt3c_cs.c +++ b/drivers/bluetooth/bt3c_cs.c @@ -661,9 +661,6 @@ static int bt3c_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts1 = 8; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - - link->irq.Handler = bt3c_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -743,9 +740,9 @@ static int bt3c_config(struct pcmcia_device *link) goto failed; found_port: - i = pcmcia_request_irq(link, &link->irq); + i = pcmcia_request_irq(link, &bt3c_interrupt); if (i != 0) - link->irq.AssignedIRQ = 0; + goto failed; i = pcmcia_request_configuration(link, &link->conf); if (i != 0) diff --git a/drivers/bluetooth/btuart_cs.c b/drivers/bluetooth/btuart_cs.c index 60c0953d7d0..1073d660d62 100644 --- a/drivers/bluetooth/btuart_cs.c +++ b/drivers/bluetooth/btuart_cs.c @@ -590,9 +590,6 @@ static int btuart_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts1 = 8; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - - link->irq.Handler = btuart_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -672,9 +669,9 @@ static int btuart_config(struct pcmcia_device *link) goto failed; found_port: - i = pcmcia_request_irq(link, &link->irq); + i = pcmcia_request_irq(link, btuart_interrupt); if (i != 0) - link->irq.AssignedIRQ = 0; + goto failed; i = pcmcia_request_configuration(link, &link->conf); if (i != 0) diff --git a/drivers/bluetooth/dtl1_cs.c b/drivers/bluetooth/dtl1_cs.c index 17788317c51..3d72afddabb 100644 --- a/drivers/bluetooth/dtl1_cs.c +++ b/drivers/bluetooth/dtl1_cs.c @@ -575,9 +575,6 @@ static int dtl1_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts1 = 8; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - - link->irq.Handler = dtl1_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -621,9 +618,9 @@ static int dtl1_config(struct pcmcia_device *link) if (pcmcia_loop_config(link, dtl1_confcheck, NULL) < 0) goto failed; - i = pcmcia_request_irq(link, &link->irq); + i = pcmcia_request_irq(link, dtl1_interrupt); if (i != 0) - link->irq.AssignedIRQ = 0; + goto failed; i = pcmcia_request_configuration(link, &link->conf); if (i != 0) diff --git a/drivers/char/pcmcia/ipwireless/main.c b/drivers/char/pcmcia/ipwireless/main.c index dff24dae148..2237890bc25 100644 --- a/drivers/char/pcmcia/ipwireless/main.c +++ b/drivers/char/pcmcia/ipwireless/main.c @@ -195,9 +195,6 @@ static int config_ipwireless(struct ipw_dev *ipw) link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = ipwireless_interrupt; - INIT_WORK(&ipw->work_reboot, signalled_reboot_work); ipwireless_init_hardware_v1(ipw->hardware, link->io.BasePort1, @@ -205,8 +202,7 @@ static int config_ipwireless(struct ipw_dev *ipw) ipw->is_v2_card, signalled_reboot_callback, ipw); - ret = pcmcia_request_irq(link, &link->irq); - + ret = pcmcia_request_irq(link, ipwireless_interrupt); if (ret != 0) goto exit; @@ -217,7 +213,7 @@ static int config_ipwireless(struct ipw_dev *ipw) (unsigned int) link->io.BasePort1, (unsigned int) (link->io.BasePort1 + link->io.NumPorts1 - 1), - (unsigned int) link->irq.AssignedIRQ); + (unsigned int) link->irq); if (ipw->attr_memory && ipw->common_memory) printk(KERN_INFO IPWIRELESS_PCCARD_NAME ": attr memory 0x%08lx-0x%08lx, common memory 0x%08lx-0x%08lx\n", @@ -271,8 +267,6 @@ exit: static void release_ipwireless(struct ipw_dev *ipw) { - pcmcia_disable_device(ipw->link); - if (ipw->common_memory) { release_mem_region(ipw->request_common_memory.Base, ipw->request_common_memory.Size); @@ -288,7 +282,6 @@ static void release_ipwireless(struct ipw_dev *ipw) if (ipw->attr_memory) pcmcia_release_window(ipw->link, ipw->handle_attr_memory); - /* Break the link with Card Services */ pcmcia_disable_device(ipw->link); } diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c index c31a0d913d3..027690b70d2 100644 --- a/drivers/char/pcmcia/synclink_cs.c +++ b/drivers/char/pcmcia/synclink_cs.c @@ -552,10 +552,6 @@ static int mgslpc_probe(struct pcmcia_device *link) /* Initialize the struct pcmcia_device structure */ - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = NULL; - link->conf.Attributes = 0; link->conf.IntType = INT_MEMORY_AND_IO; @@ -608,9 +604,7 @@ static int mgslpc_config(struct pcmcia_device *link) link->conf.ConfigIndex = 8; link->conf.Present = PRESENT_OPTION; - link->irq.Handler = mgslpc_isr; - - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, mgslpc_isr); if (ret) goto failed; ret = pcmcia_request_configuration(link, &link->conf); @@ -618,7 +612,7 @@ static int mgslpc_config(struct pcmcia_device *link) goto failed; info->io_base = link->io.BasePort1; - info->irq_level = link->irq.AssignedIRQ; + info->irq_level = link->irq; /* add to linked list of devices */ sprintf(info->node.dev_name, "mgslpc0"); @@ -628,7 +622,7 @@ static int mgslpc_config(struct pcmcia_device *link) printk(KERN_INFO "%s: index 0x%02x:", info->node.dev_name, link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1-1); diff --git a/drivers/ide/ide-cs.c b/drivers/ide/ide-cs.c index b85450865ff..17ad91e453e 100644 --- a/drivers/ide/ide-cs.c +++ b/drivers/ide/ide-cs.c @@ -102,7 +102,6 @@ static int ide_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; link->io.IOAddrLines = 3; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -285,8 +284,7 @@ static int ide_config(struct pcmcia_device *link) io_base = link->io.BasePort1; ctl_base = stk->ctl_base; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; ret = pcmcia_request_configuration(link, &link->conf); if (ret) @@ -299,11 +297,11 @@ static int ide_config(struct pcmcia_device *link) if (is_kme) outb(0x81, ctl_base+1); - host = idecs_register(io_base, ctl_base, link->irq.AssignedIRQ, link); + host = idecs_register(io_base, ctl_base, link->irq, link); if (host == NULL && link->io.NumPorts1 == 0x20) { outb(0x02, ctl_base + 0x10); host = idecs_register(io_base + 0x10, ctl_base + 0x10, - link->irq.AssignedIRQ, link); + link->irq, link); } if (host == NULL) diff --git a/drivers/isdn/hardware/avm/avm_cs.c b/drivers/isdn/hardware/avm/avm_cs.c index 94b796d8405..0d485f6c219 100644 --- a/drivers/isdn/hardware/avm/avm_cs.c +++ b/drivers/isdn/hardware/avm/avm_cs.c @@ -107,9 +107,6 @@ static int avmcs_probe(struct pcmcia_device *p_dev) p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; p_dev->io.NumPorts2 = 0; - /* Interrupt setup */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - /* General socket configuration */ p_dev->conf.Attributes = CONF_ENABLE_IRQ; p_dev->conf.IntType = INT_MEMORY_AND_IO; @@ -172,7 +169,7 @@ static int avmcs_configcheck(struct pcmcia_device *p_dev, static int avmcs_config(struct pcmcia_device *link) { local_info_t *dev; - int i; + int i = -1; char devname[128]; int cardtype; int (*addcard)(unsigned int port, unsigned irq); @@ -190,11 +187,7 @@ static int avmcs_config(struct pcmcia_device *link) return -ENODEV; do { - /* - * allocate an interrupt line - */ - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) { + if (!link->irq) { /* undo */ pcmcia_disable_device(link); break; @@ -249,9 +242,9 @@ static int avmcs_config(struct pcmcia_device *link) default: case AVM_CARDTYPE_B1: addcard = b1pcmcia_addcard_b1; break; } - if ((i = (*addcard)(link->io.BasePort1, link->irq.AssignedIRQ)) < 0) { + if ((i = (*addcard)(link->io.BasePort1, link->irq)) < 0) { printk(KERN_ERR "avm_cs: failed to add AVM-%s-Controller at i/o %#x, irq %d\n", - dev->node.dev_name, link->io.BasePort1, link->irq.AssignedIRQ); + dev->node.dev_name, link->io.BasePort1, link->irq); avmcs_release(link); return -ENODEV; } @@ -270,7 +263,7 @@ static int avmcs_config(struct pcmcia_device *link) static void avmcs_release(struct pcmcia_device *link) { - b1pcmcia_delcard(link->io.BasePort1, link->irq.AssignedIRQ); + b1pcmcia_delcard(link->io.BasePort1, link->irq); pcmcia_disable_device(link); } /* avmcs_release */ diff --git a/drivers/isdn/hisax/avma1_cs.c b/drivers/isdn/hisax/avma1_cs.c index 8d1d63a02b3..3ae2176c6f7 100644 --- a/drivers/isdn/hisax/avma1_cs.c +++ b/drivers/isdn/hisax/avma1_cs.c @@ -119,9 +119,6 @@ static int __devinit avma1cs_probe(struct pcmcia_device *p_dev) p_dev->io.Attributes2 = IO_DATA_PATH_WIDTH_16; p_dev->io.IOAddrLines = 5; - /* Interrupt setup */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - /* General socket configuration */ p_dev->conf.Attributes = CONF_ENABLE_IRQ; p_dev->conf.IntType = INT_MEMORY_AND_IO; @@ -177,7 +174,7 @@ static int avma1cs_configcheck(struct pcmcia_device *p_dev, static int __devinit avma1cs_config(struct pcmcia_device *link) { local_info_t *dev; - int i; + int i = -1; char devname[128]; IsdnCard_t icard; int busy = 0; @@ -197,8 +194,7 @@ static int __devinit avma1cs_config(struct pcmcia_device *link) /* * allocate an interrupt line */ - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) { + if (!link->irq) { /* undo */ pcmcia_disable_device(link); break; @@ -230,9 +226,9 @@ static int __devinit avma1cs_config(struct pcmcia_device *link) } printk(KERN_NOTICE "avma1_cs: checking at i/o %#x, irq %d\n", - link->io.BasePort1, link->irq.AssignedIRQ); + link->io.BasePort1, link->irq); - icard.para[0] = link->irq.AssignedIRQ; + icard.para[0] = link->irq; icard.para[1] = link->io.BasePort1; icard.protocol = isdnprot; icard.typ = ISDN_CTYPE_A1_PCMCIA; diff --git a/drivers/isdn/hisax/elsa_cs.c b/drivers/isdn/hisax/elsa_cs.c index c9f2279e21f..8e170e4b7cf 100644 --- a/drivers/isdn/hisax/elsa_cs.c +++ b/drivers/isdn/hisax/elsa_cs.c @@ -136,10 +136,6 @@ static int __devinit elsa_cs_probe(struct pcmcia_device *link) local->cardnr = -1; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -223,11 +219,8 @@ static int __devinit elsa_cs_config(struct pcmcia_device *link) if (i != 0) goto failed; - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) { - link->irq.AssignedIRQ = 0; + if (!link->irq) goto failed; - } i = pcmcia_request_configuration(link, &link->conf); if (i != 0) @@ -244,7 +237,7 @@ static int __devinit elsa_cs_config(struct pcmcia_device *link) printk(KERN_INFO "%s: index 0x%02x: ", dev->node.dev_name, link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1-1); @@ -253,7 +246,7 @@ static int __devinit elsa_cs_config(struct pcmcia_device *link) link->io.BasePort2+link->io.NumPorts2-1); printk("\n"); - icard.para[0] = link->irq.AssignedIRQ; + icard.para[0] = link->irq; icard.para[1] = link->io.BasePort1; icard.protocol = protocol; icard.typ = ISDN_CTYPE_ELSA_PCMCIA; diff --git a/drivers/isdn/hisax/sedlbauer_cs.c b/drivers/isdn/hisax/sedlbauer_cs.c index 71b3ddef03b..7778385b05b 100644 --- a/drivers/isdn/hisax/sedlbauer_cs.c +++ b/drivers/isdn/hisax/sedlbauer_cs.c @@ -143,10 +143,6 @@ static int __devinit sedlbauer_probe(struct pcmcia_device *link) local->p_dev = link; link->priv = local; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -227,9 +223,7 @@ static int sedlbauer_config_check(struct pcmcia_device *p_dev, else if (dflt->vpp1.present & (1<conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM]/10000; - /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -312,17 +306,6 @@ static int __devinit sedlbauer_config(struct pcmcia_device *link) if (ret) goto failed; - /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } - /* This actually configures the PCMCIA socket -- setting up the I/O windows and the interrupt mapping, and putting the @@ -346,7 +329,7 @@ static int __devinit sedlbauer_config(struct pcmcia_device *link) if (link->conf.Vpp) printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1-1); @@ -358,7 +341,7 @@ static int __devinit sedlbauer_config(struct pcmcia_device *link) req->Base+req->Size-1); printk("\n"); - icard.para[0] = link->irq.AssignedIRQ; + icard.para[0] = link->irq; icard.para[1] = link->io.BasePort1; icard.protocol = protocol; icard.typ = ISDN_CTYPE_SEDLBAUER_PCMCIA; diff --git a/drivers/isdn/hisax/teles_cs.c b/drivers/isdn/hisax/teles_cs.c index d010a0da8e1..02dec13f25e 100644 --- a/drivers/isdn/hisax/teles_cs.c +++ b/drivers/isdn/hisax/teles_cs.c @@ -126,10 +126,6 @@ static int __devinit teles_probe(struct pcmcia_device *link) local->p_dev = link; link->priv = local; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -213,11 +209,8 @@ static int __devinit teles_cs_config(struct pcmcia_device *link) if (i != 0) goto cs_failed; - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) { - link->irq.AssignedIRQ = 0; + if (!link->irq) goto cs_failed; - } i = pcmcia_request_configuration(link, &link->conf); if (i != 0) @@ -234,7 +227,7 @@ static int __devinit teles_cs_config(struct pcmcia_device *link) printk(KERN_INFO "%s: index 0x%02x:", dev->node.dev_name, link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1-1); @@ -243,7 +236,7 @@ static int __devinit teles_cs_config(struct pcmcia_device *link) link->io.BasePort2+link->io.NumPorts2-1); printk("\n"); - icard.para[0] = link->irq.AssignedIRQ; + icard.para[0] = link->irq; icard.para[1] = link->io.BasePort1; icard.protocol = protocol; icard.typ = ISDN_CTYPE_TELESPCMCIA; diff --git a/drivers/net/pcmcia/3c574_cs.c b/drivers/net/pcmcia/3c574_cs.c index 757f87bb1db..14428317c00 100644 --- a/drivers/net/pcmcia/3c574_cs.c +++ b/drivers/net/pcmcia/3c574_cs.c @@ -283,8 +283,6 @@ static int tc574_probe(struct pcmcia_device *link) spin_lock_init(&lp->window_lock); link->io.NumPorts1 = 32; link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = &el3_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.ConfigIndex = 1; @@ -353,7 +351,7 @@ static int tc574_config(struct pcmcia_device *link) if (i != 0) goto failed; - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, el3_interrupt); if (ret) goto failed; @@ -361,7 +359,7 @@ static int tc574_config(struct pcmcia_device *link) if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; ioaddr = dev->base_addr; diff --git a/drivers/net/pcmcia/3c589_cs.c b/drivers/net/pcmcia/3c589_cs.c index 091e0b00043..405d772bfde 100644 --- a/drivers/net/pcmcia/3c589_cs.c +++ b/drivers/net/pcmcia/3c589_cs.c @@ -194,8 +194,7 @@ static int tc589_probe(struct pcmcia_device *link) spin_lock_init(&lp->lock); link->io.NumPorts1 = 16; link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = &el3_interrupt; + link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.ConfigIndex = 1; @@ -271,7 +270,7 @@ static int tc589_config(struct pcmcia_device *link) if (i != 0) goto failed; - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, el3_interrupt); if (ret) goto failed; @@ -279,7 +278,7 @@ static int tc589_config(struct pcmcia_device *link) if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; ioaddr = dev->base_addr; EL3WINDOW(0); diff --git a/drivers/net/pcmcia/axnet_cs.c b/drivers/net/pcmcia/axnet_cs.c index 9f3d593f14e..967547a84b4 100644 --- a/drivers/net/pcmcia/axnet_cs.c +++ b/drivers/net/pcmcia/axnet_cs.c @@ -168,7 +168,6 @@ static int axnet_probe(struct pcmcia_device *link) info = PRIV(dev); info->p_dev = link; link->priv = dev; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -265,12 +264,9 @@ static int try_io_port(struct pcmcia_device *link) int j, ret; if (link->io.NumPorts1 == 32) { link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; - if (link->io.NumPorts2 > 0) { - /* for master/slave multifunction cards */ + /* for master/slave multifunction cards */ + if (link->io.NumPorts2 > 0) link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; - link->irq.Attributes = - IRQ_TYPE_DYNAMIC_SHARING; - } } else { /* This should be two 16-port windows */ link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; @@ -336,8 +332,7 @@ static int axnet_config(struct pcmcia_device *link) if (ret != 0) goto failed; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; if (link->io.NumPorts2 == 8) { @@ -349,7 +344,7 @@ static int axnet_config(struct pcmcia_device *link) if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; if (!get_prom(link)) { diff --git a/drivers/net/pcmcia/com20020_cs.c b/drivers/net/pcmcia/com20020_cs.c index 21d9c9d815d..278438beb91 100644 --- a/drivers/net/pcmcia/com20020_cs.c +++ b/drivers/net/pcmcia/com20020_cs.c @@ -163,7 +163,6 @@ static int com20020_probe(struct pcmcia_device *p_dev) p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; p_dev->io.NumPorts1 = 16; p_dev->io.IOAddrLines = 16; - p_dev->irq.Attributes = IRQ_TYPE_EXCLUSIVE; p_dev->conf.Attributes = CONF_ENABLE_IRQ; p_dev->conf.IntType = INT_MEMORY_AND_IO; @@ -275,15 +274,14 @@ static int com20020_config(struct pcmcia_device *link) dev_dbg(&link->dev, "got ioaddr %Xh\n", ioaddr); dev_dbg(&link->dev, "request IRQ %d\n", - link->irq.AssignedIRQ); - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) + link->irq); + if (!link->irq) { dev_dbg(&link->dev, "requestIRQ failed totally!\n"); goto failed; } - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; ret = pcmcia_request_configuration(link, &link->conf); if (ret) diff --git a/drivers/net/pcmcia/fmvj18x_cs.c b/drivers/net/pcmcia/fmvj18x_cs.c index b9dc80b9d04..31f1a037737 100644 --- a/drivers/net/pcmcia/fmvj18x_cs.c +++ b/drivers/net/pcmcia/fmvj18x_cs.c @@ -254,10 +254,6 @@ static int fmvj18x_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 5; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = fjn_interrupt; - /* General socket configuration */ link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -425,8 +421,6 @@ static int fmvj18x_config(struct pcmcia_device *link) } if (link->io.NumPorts2 != 0) { - link->irq.Attributes = - IRQ_TYPE_DYNAMIC_SHARING; ret = mfc_try_io_port(link); if (ret != 0) goto failed; } else if (cardtype == UNGERMANN) { @@ -437,14 +431,14 @@ static int fmvj18x_config(struct pcmcia_device *link) if (ret) goto failed; } - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, fjn_interrupt); if (ret) goto failed; ret = pcmcia_request_configuration(link, &link->conf); if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; if (link->io.BasePort2 != 0) { diff --git a/drivers/net/pcmcia/ibmtr_cs.c b/drivers/net/pcmcia/ibmtr_cs.c index 37f4a6fdc3e..0225cdffa4b 100644 --- a/drivers/net/pcmcia/ibmtr_cs.c +++ b/drivers/net/pcmcia/ibmtr_cs.c @@ -156,8 +156,6 @@ static int __devinit ibmtr_attach(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts1 = 4; link->io.IOAddrLines = 16; - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; - link->irq.Handler = ibmtr_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.Present = PRESENT_OPTION; @@ -238,11 +236,11 @@ static int __devinit ibmtr_config(struct pcmcia_device *link) } dev->base_addr = link->io.BasePort1; - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_exclusive_irq(link, ibmtr_interrupt); if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; - ti->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; + ti->irq = link->irq; ti->global_int_enable=GLOBAL_INT_ENABLE+((dev->irq==9) ? 2 : dev->irq); /* Allocate the MMIO memory window */ diff --git a/drivers/net/pcmcia/nmclan_cs.c b/drivers/net/pcmcia/nmclan_cs.c index c717b143f11..b779e3a0b4d 100644 --- a/drivers/net/pcmcia/nmclan_cs.c +++ b/drivers/net/pcmcia/nmclan_cs.c @@ -463,8 +463,6 @@ static int nmclan_probe(struct pcmcia_device *link) link->io.NumPorts1 = 32; link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 5; - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; - link->irq.Handler = mace_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.ConfigIndex = 1; @@ -652,14 +650,14 @@ static int nmclan_config(struct pcmcia_device *link) ret = pcmcia_request_io(link, &link->io); if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_exclusive_irq(link, mace_interrupt); if (ret) goto failed; ret = pcmcia_request_configuration(link, &link->conf); if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; ioaddr = dev->base_addr; diff --git a/drivers/net/pcmcia/pcnet_cs.c b/drivers/net/pcmcia/pcnet_cs.c index 4c0368de181..af09be48757 100644 --- a/drivers/net/pcmcia/pcnet_cs.c +++ b/drivers/net/pcmcia/pcnet_cs.c @@ -264,7 +264,6 @@ static int pcnet_probe(struct pcmcia_device *link) info->p_dev = link; link->priv = dev; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -488,8 +487,6 @@ static int try_io_port(struct pcmcia_device *link) if (link->io.NumPorts2 > 0) { /* for master/slave multifunction cards */ link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; - link->irq.Attributes = - IRQ_TYPE_DYNAMIC_SHARING; } } else { /* This should be two 16-port windows */ @@ -559,8 +556,7 @@ static int pcnet_config(struct pcmcia_device *link) if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; if (link->io.NumPorts2 == 8) { @@ -574,7 +570,7 @@ static int pcnet_config(struct pcmcia_device *link) ret = pcmcia_request_configuration(link, &link->conf); if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; if (info->flags & HAS_MISC_REG) { if ((if_port == 1) || (if_port == 2)) diff --git a/drivers/net/pcmcia/smc91c92_cs.c b/drivers/net/pcmcia/smc91c92_cs.c index ccc553782a0..ad061c7106b 100644 --- a/drivers/net/pcmcia/smc91c92_cs.c +++ b/drivers/net/pcmcia/smc91c92_cs.c @@ -329,8 +329,6 @@ static int smc91c92_probe(struct pcmcia_device *link) link->io.NumPorts1 = 16; link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 4; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = &smc_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -453,7 +451,6 @@ static int mhz_mfc_config(struct pcmcia_device *link) link->conf.Attributes |= CONF_ENABLE_SPKR; link->conf.Status = CCSR_AUDIO_ENA; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->io.IOAddrLines = 16; link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts2 = 8; @@ -652,7 +649,6 @@ static int osi_config(struct pcmcia_device *link) link->conf.Attributes |= CONF_ENABLE_SPKR; link->conf.Status = CCSR_AUDIO_ENA; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->io.NumPorts1 = 64; link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts2 = 8; @@ -877,7 +873,7 @@ static int smc91c92_config(struct pcmcia_device *link) if (i) goto config_failed; - i = pcmcia_request_irq(link, &link->irq); + i = pcmcia_request_irq(link, smc_interrupt); if (i) goto config_failed; i = pcmcia_request_configuration(link, &link->conf); @@ -887,7 +883,7 @@ static int smc91c92_config(struct pcmcia_device *link) if (smc->manfid == MANFID_MOTOROLA) mot_config(link); - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; if ((if_port >= 0) && (if_port <= 2)) dev->if_port = if_port; diff --git a/drivers/net/pcmcia/xirc2ps_cs.c b/drivers/net/pcmcia/xirc2ps_cs.c index 4d1802e457b..c9e7d7d4783 100644 --- a/drivers/net/pcmcia/xirc2ps_cs.c +++ b/drivers/net/pcmcia/xirc2ps_cs.c @@ -555,7 +555,6 @@ xirc2ps_probe(struct pcmcia_device *link) link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.ConfigIndex = 1; - link->irq.Handler = xirc2ps_interrupt; /* Fill in card specific entries */ dev->netdev_ops = &netdev_ops; @@ -841,7 +840,6 @@ xirc2ps_config(struct pcmcia_device * link) link->conf.Attributes |= CONF_ENABLE_SPKR; link->conf.Status |= CCSR_AUDIO_ENA; } - link->irq.Attributes |= IRQ_TYPE_DYNAMIC_SHARING; link->io.NumPorts2 = 8; link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; if (local->dingo) { @@ -866,7 +864,6 @@ xirc2ps_config(struct pcmcia_device * link) } printk(KNOT_XIRC "no ports available\n"); } else { - link->irq.Attributes |= IRQ_TYPE_DYNAMIC_SHARING; link->io.NumPorts1 = 16; for (ioaddr = 0x300; ioaddr < 0x400; ioaddr += 0x10) { link->io.BasePort1 = ioaddr; @@ -885,7 +882,7 @@ xirc2ps_config(struct pcmcia_device * link) * Now allocate an interrupt line. Note that this does not * actually assign a handler to the interrupt. */ - if ((err=pcmcia_request_irq(link, &link->irq))) + if ((err=pcmcia_request_irq(link, xirc2ps_interrupt))) goto config_error; /**************** @@ -982,7 +979,7 @@ xirc2ps_config(struct pcmcia_device * link) printk(KNOT_XIRC "invalid if_port requested\n"); /* we can now register the device with the net subsystem */ - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; if (local->dingo) diff --git a/drivers/net/wireless/airo_cs.c b/drivers/net/wireless/airo_cs.c index f6036fb4231..7867c51be15 100644 --- a/drivers/net/wireless/airo_cs.c +++ b/drivers/net/wireless/airo_cs.c @@ -132,10 +132,6 @@ static int airo_probe(struct pcmcia_device *p_dev) dev_dbg(&p_dev->dev, "airo_attach()\n"); - /* Interrupt setup */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - p_dev->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -212,9 +208,7 @@ static int airo_cs_config_check(struct pcmcia_device *p_dev, else if (dflt->vpp1.present & (1<conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM]/10000; - /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -300,16 +294,8 @@ static int airo_config(struct pcmcia_device *link) if (ret) goto failed; - /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + if (!link->irq) + goto failed; /* This actually configures the PCMCIA socket -- setting up @@ -320,7 +306,7 @@ static int airo_config(struct pcmcia_device *link) if (ret) goto failed; ((local_info_t *)link->priv)->eth_dev = - init_airo_card(link->irq.AssignedIRQ, + init_airo_card(link->irq, link->io.BasePort1, 1, &link->dev); if (!((local_info_t *)link->priv)->eth_dev) goto failed; @@ -338,8 +324,7 @@ static int airo_config(struct pcmcia_device *link) dev->node.dev_name, link->conf.ConfigIndex); if (link->conf.Vpp) printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10); - if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1-1); diff --git a/drivers/net/wireless/atmel_cs.c b/drivers/net/wireless/atmel_cs.c index 32407911842..759cdc41932 100644 --- a/drivers/net/wireless/atmel_cs.c +++ b/drivers/net/wireless/atmel_cs.c @@ -141,10 +141,6 @@ static int atmel_probe(struct pcmcia_device *p_dev) dev_dbg(&p_dev->dev, "atmel_attach()\n"); - /* Interrupt setup */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - p_dev->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -226,9 +222,7 @@ static int atmel_config_check(struct pcmcia_device *p_dev, else if (dflt->vpp1.present & (1<conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM]/10000; - /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -278,15 +272,9 @@ static int atmel_config(struct pcmcia_device *link) if (pcmcia_loop_config(link, atmel_config_check, NULL)) goto failed; - /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; + if (!link->irq) { + dev_err(&link->dev, "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config."); + goto failed; } /* @@ -298,14 +286,8 @@ static int atmel_config(struct pcmcia_device *link) if (ret) goto failed; - if (link->irq.AssignedIRQ == 0) { - printk(KERN_ALERT - "atmel: cannot assign IRQ: check that CONFIG_ISA is set in kernel config."); - goto failed; - } - ((local_info_t*)link->priv)->eth_dev = - init_atmel_card(link->irq.AssignedIRQ, + init_atmel_card(link->irq, link->io.BasePort1, did ? did->driver_info : ATMEL_FW_TYPE_NONE, &link->dev, diff --git a/drivers/net/wireless/b43/pcmcia.c b/drivers/net/wireless/b43/pcmcia.c index 609e7051e01..0e99b634267 100644 --- a/drivers/net/wireless/b43/pcmcia.c +++ b/drivers/net/wireless/b43/pcmcia.c @@ -98,10 +98,7 @@ static int __devinit b43_pcmcia_probe(struct pcmcia_device *dev) if (res != 0) goto err_disable; - dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - dev->irq.Handler = NULL; /* The handler is registered later. */ - res = pcmcia_request_irq(dev, &dev->irq); - if (res != 0) + if (!dev->irq) goto err_disable; res = pcmcia_request_configuration(dev, &dev->conf); diff --git a/drivers/net/wireless/hostap/hostap_cs.c b/drivers/net/wireless/hostap/hostap_cs.c index a36501dbbe0..5e2efbb0367 100644 --- a/drivers/net/wireless/hostap/hostap_cs.c +++ b/drivers/net/wireless/hostap/hostap_cs.c @@ -556,15 +556,7 @@ static int prism2_config_check(struct pcmcia_device *p_dev, p_dev->conf.Vpp = dflt->vpp1.param[CISTPL_POWER_VNOM] / 10000; /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; - else if (!(p_dev->conf.Attributes & CONF_ENABLE_IRQ)) { - /* At least Compaq WL200 does not have IRQInfo1 set, - * but it does not work without interrupts.. */ - printk(KERN_WARNING "Config has no IRQ info, but trying to " - "enable IRQ anyway..\n"); - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; - } + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ PDEBUG(DEBUG_EXTRA, "IO window settings: cfg->io.nwin=%d " @@ -636,18 +628,9 @@ static int prism2_config(struct pcmcia_device *link) strcpy(hw_priv->node.dev_name, dev->name); link->dev_node = &hw_priv->node; - /* - * Allocate an interrupt line. Note that this does not assign a - * handler to the interrupt, unless the 'Handler' member of the - * irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = prism2_interrupt; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + ret = pcmcia_request_irq(link, prism2_interrupt); + if (ret) + goto failed; /* * This actually configures the PCMCIA socket -- setting up @@ -658,7 +641,7 @@ static int prism2_config(struct pcmcia_device *link) if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; /* Finally, report what we've done */ @@ -668,7 +651,7 @@ static int prism2_config(struct pcmcia_device *link) printk(", Vpp %d.%d", link->conf.Vpp / 10, link->conf.Vpp % 10); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1-1); diff --git a/drivers/net/wireless/libertas/if_cs.c b/drivers/net/wireless/libertas/if_cs.c index 6d55439a7b9..08e4e390800 100644 --- a/drivers/net/wireless/libertas/if_cs.c +++ b/drivers/net/wireless/libertas/if_cs.c @@ -777,7 +777,7 @@ static void if_cs_release(struct pcmcia_device *p_dev) lbs_deb_enter(LBS_DEB_CS); - free_irq(p_dev->irq.AssignedIRQ, card); + free_irq(p_dev->irq, card); pcmcia_disable_device(p_dev); if (card->iobase) ioport_unmap(card->iobase); @@ -807,8 +807,7 @@ static int if_cs_ioprobe(struct pcmcia_device *p_dev, p_dev->io.NumPorts1 = cfg->io.win[0].len; /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ if (cfg->io.nwin != 1) { @@ -837,9 +836,6 @@ static int if_cs_probe(struct pcmcia_device *p_dev) card->p_dev = p_dev; p_dev->priv = card; - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - p_dev->irq.Handler = NULL; - p_dev->conf.Attributes = 0; p_dev->conf.IntType = INT_MEMORY_AND_IO; @@ -854,13 +850,8 @@ static int if_cs_probe(struct pcmcia_device *p_dev) * a handler to the interrupt, unless the 'Handler' member of * the irq structure is initialized. */ - if (p_dev->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(p_dev, &p_dev->irq); - if (ret) { - lbs_pr_err("error in pcmcia_request_irq\n"); - goto out1; - } - } + if (!p_dev->irq) + goto out1; /* Initialize io access */ card->iobase = ioport_map(p_dev->io.BasePort1, p_dev->io.NumPorts1); @@ -883,7 +874,7 @@ static int if_cs_probe(struct pcmcia_device *p_dev) /* Finally, report what we've done */ lbs_deb_cs("irq %d, io 0x%04x-0x%04x\n", - p_dev->irq.AssignedIRQ, p_dev->io.BasePort1, + p_dev->irq, p_dev->io.BasePort1, p_dev->io.BasePort1 + p_dev->io.NumPorts1 - 1); /* @@ -940,7 +931,7 @@ static int if_cs_probe(struct pcmcia_device *p_dev) priv->fw_ready = 1; /* Now actually get the IRQ */ - ret = request_irq(p_dev->irq.AssignedIRQ, if_cs_interrupt, + ret = request_irq(p_dev->irq, if_cs_interrupt, IRQF_SHARED, DRV_NAME, card); if (ret) { lbs_pr_err("error in request_irq\n"); diff --git a/drivers/net/wireless/orinoco/orinoco_cs.c b/drivers/net/wireless/orinoco/orinoco_cs.c index 1d4ada188ed..5d29b11fdbc 100644 --- a/drivers/net/wireless/orinoco/orinoco_cs.c +++ b/drivers/net/wireless/orinoco/orinoco_cs.c @@ -119,10 +119,6 @@ orinoco_cs_probe(struct pcmcia_device *link) card->p_dev = link; link->priv = priv; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = orinoco_interrupt; - /* General socket configuration defaults can go here. In this * client, we assume very little, and rely on the CIS for * almost everything. In most clients, many details (i.e., @@ -258,12 +254,7 @@ orinoco_cs_config(struct pcmcia_device *link) goto failed; } - /* - * Allocate an interrupt line. Note that this does not assign - * a handler to the interrupt, unless the 'Handler' member of - * the irq structure is initialized. - */ - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, orinoco_interrupt); if (ret) goto failed; @@ -296,7 +287,7 @@ orinoco_cs_config(struct pcmcia_device *link) /* Register an interface with the stack */ if (orinoco_if_add(priv, link->io.BasePort1, - link->irq.AssignedIRQ) != 0) { + link->irq) != 0) { printk(KERN_ERR PFX "orinoco_if_add() failed\n"); goto failed; } diff --git a/drivers/net/wireless/orinoco/spectrum_cs.c b/drivers/net/wireless/orinoco/spectrum_cs.c index 59bda240fdc..7a8e056cd62 100644 --- a/drivers/net/wireless/orinoco/spectrum_cs.c +++ b/drivers/net/wireless/orinoco/spectrum_cs.c @@ -193,10 +193,6 @@ spectrum_cs_probe(struct pcmcia_device *link) card->p_dev = link; link->priv = priv; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = orinoco_interrupt; - /* General socket configuration defaults can go here. In this * client, we assume very little, and rely on the CIS for * almost everything. In most clients, many details (i.e., @@ -332,12 +328,7 @@ spectrum_cs_config(struct pcmcia_device *link) goto failed; } - /* - * Allocate an interrupt line. Note that this does not assign - * a handler to the interrupt, unless the 'Handler' member of - * the irq structure is initialized. - */ - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, orinoco_interrupt); if (ret) goto failed; @@ -374,7 +365,7 @@ spectrum_cs_config(struct pcmcia_device *link) /* Register an interface with the stack */ if (orinoco_if_add(priv, link->io.BasePort1, - link->irq.AssignedIRQ) != 0) { + link->irq) != 0) { printk(KERN_ERR PFX "orinoco_if_add() failed\n"); goto failed; } diff --git a/drivers/net/wireless/ray_cs.c b/drivers/net/wireless/ray_cs.c index 11865ea2187..fe4642a49bf 100644 --- a/drivers/net/wireless/ray_cs.c +++ b/drivers/net/wireless/ray_cs.c @@ -321,10 +321,6 @@ static int ray_probe(struct pcmcia_device *p_dev) p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; p_dev->io.IOAddrLines = 5; - /* Interrupt setup. For PCMCIA, driver takes what's given */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - p_dev->irq.Handler = &ray_interrupt; - /* General socket configuration */ p_dev->conf.Attributes = CONF_ENABLE_IRQ; p_dev->conf.IntType = INT_MEMORY_AND_IO; @@ -417,10 +413,10 @@ static int ray_config(struct pcmcia_device *link) /* Now allocate an interrupt line. Note that this does not actually assign a handler to the interrupt. */ - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, ray_interrupt); if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; /* This actually configures the PCMCIA socket -- setting up the I/O windows and the interrupt mapping. diff --git a/drivers/net/wireless/wl3501_cs.c b/drivers/net/wireless/wl3501_cs.c index 7b9621de239..c43f05b98c4 100644 --- a/drivers/net/wireless/wl3501_cs.c +++ b/drivers/net/wireless/wl3501_cs.c @@ -1897,10 +1897,6 @@ static int wl3501_probe(struct pcmcia_device *p_dev) p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; p_dev->io.IOAddrLines = 5; - /* Interrupt setup */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - p_dev->irq.Handler = wl3501_interrupt; - /* General socket configuration */ p_dev->conf.Attributes = CONF_ENABLE_IRQ; p_dev->conf.IntType = INT_MEMORY_AND_IO; @@ -1961,7 +1957,7 @@ static int wl3501_config(struct pcmcia_device *link) /* Now allocate an interrupt line. Note that this does not actually * assign a handler to the interrupt. */ - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, wl3501_interrupt); if (ret) goto failed; @@ -1972,7 +1968,7 @@ static int wl3501_config(struct pcmcia_device *link) if (ret) goto failed; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; SET_NETDEV_DEV(dev, &link->dev); if (register_netdev(dev)) { diff --git a/drivers/parport/parport_cs.c b/drivers/parport/parport_cs.c index 7dd370fa343..80c9052bf3c 100644 --- a/drivers/parport/parport_cs.c +++ b/drivers/parport/parport_cs.c @@ -105,7 +105,6 @@ static int parport_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; link->io.Attributes2 = IO_DATA_PATH_WIDTH_8; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -174,20 +173,19 @@ static int parport_config(struct pcmcia_device *link) if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; ret = pcmcia_request_configuration(link, &link->conf); if (ret) goto failed; p = parport_pc_probe_port(link->io.BasePort1, link->io.BasePort2, - link->irq.AssignedIRQ, PARPORT_DMA_NONE, + link->irq, PARPORT_DMA_NONE, &link->dev, IRQF_SHARED); if (p == NULL) { printk(KERN_NOTICE "parport_cs: parport_pc_probe_port() at " "0x%3x, irq %u failed\n", link->io.BasePort1, - link->irq.AssignedIRQ); + link->irq); goto failed; } diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index 5fd2948c7ed..a2649c7b05b 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -546,7 +546,6 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu p_dev->function_config = tmp_dev->function_config; p_dev->io = tmp_dev->io; p_dev->irq = tmp_dev->irq; - p_dev->irq_v = tmp_dev->irq_v; kref_get(&p_dev->function_config->ref); } @@ -571,7 +570,7 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu dev_printk(KERN_NOTICE, &p_dev->dev, "pcmcia: registering new device %s (IRQ: %d)\n", - p_dev->devname, p_dev->irq_v); + p_dev->devname, p_dev->irq); pcmcia_device_query(p_dev); diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c index 8dce223f3f4..f355c5ac407 100644 --- a/drivers/pcmcia/pcmcia_resource.c +++ b/drivers/pcmcia/pcmcia_resource.c @@ -408,41 +408,6 @@ out: } /* pcmcia_release_io */ -static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req) -{ - struct pcmcia_socket *s = p_dev->socket; - config_t *c; - int ret = -EINVAL; - - mutex_lock(&s->ops_mutex); - - c = p_dev->function_config; - - if (!p_dev->_irq) - goto out; - - p_dev->_irq = 0; - - if (c->state & CONFIG_LOCKED) - goto out; - - if (s->pcmcia_irq != req->AssignedIRQ) { - dev_dbg(&s->dev, "IRQ must match assigned one\n"); - goto out; - } - - if (req->Handler) - free_irq(req->AssignedIRQ, p_dev->priv); - - ret = 0; - -out: - mutex_unlock(&s->ops_mutex); - - return ret; -} /* pcmcia_release_irq */ - - int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh) { struct pcmcia_socket *s = p_dev->socket; @@ -681,61 +646,66 @@ out: EXPORT_SYMBOL(pcmcia_request_io); -/** pcmcia_request_irq +/** + * pcmcia_request_irq() - attempt to request a IRQ for a PCMCIA device * - * Request_irq() reserves an irq for this client. + * pcmcia_request_irq() is a wrapper around request_irq which will allow + * the PCMCIA core to clean up the registration in pcmcia_disable_device(). + * Drivers are free to use request_irq() directly, but then they need to + * call free_irq themselfves, too. Also, only IRQF_SHARED capable IRQ + * handlers are allowed. */ - -int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req) +int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev, + irq_handler_t handler) { - struct pcmcia_socket *s = p_dev->socket; - config_t *c; - int ret = -EINVAL, irq = p_dev->irq_v; - int type = IRQF_SHARED; + int ret; - mutex_lock(&s->ops_mutex); + if (!p_dev->irq) + return -EINVAL; - if (!(s->state & SOCKET_PRESENT)) { - dev_dbg(&s->dev, "No card present\n"); - goto out; - } - c = p_dev->function_config; - if (c->state & CONFIG_LOCKED) { - dev_dbg(&s->dev, "Configuration is locked\n"); - goto out; - } + ret = request_irq(p_dev->irq, handler, IRQF_SHARED, + p_dev->devname, p_dev->priv); + if (!ret) + p_dev->_irq = 1; - if (!irq) { - dev_dbg(&s->dev, "no IRQ available\n"); - goto out; - } + return ret; +} +EXPORT_SYMBOL(pcmcia_request_irq); - if (!(req->Attributes & IRQ_TYPE_DYNAMIC_SHARING)) { - req->Attributes |= IRQ_TYPE_DYNAMIC_SHARING; - dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver " - "needs updating to supported shared IRQ lines.\n"); - } - if (req->Handler) { - ret = request_irq(irq, req->Handler, type, - p_dev->devname, p_dev->priv); - if (ret) { - dev_printk(KERN_INFO, &s->dev, - "request_irq() failed\n"); - goto out; - } - } +/** + * pcmcia_request_exclusive_irq() - attempt to request an exclusive IRQ first + * + * pcmcia_request_exclusive_irq() is a wrapper around request_irq which + * attempts first to request an exclusive IRQ. If it fails, it also accepts + * a shared IRQ, but prints out a warning. PCMCIA drivers should allow for + * IRQ sharing and either use request_irq directly (then they need to call + * free_irq themselves, too), or the pcmcia_request_irq() function. + */ +int __must_check +pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev, irq_handler_t handler) +{ + int ret; - req->AssignedIRQ = irq; + if (!p_dev->irq) + return -EINVAL; - p_dev->_irq = 1; + ret = request_irq(p_dev->irq, handler, 0, p_dev->devname, p_dev->priv); + if (ret) { + ret = pcmcia_request_irq(p_dev, handler); + dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: " + "request for exclusive IRQ could not be fulfilled.\n"); + dev_printk(KERN_WARNING, &p_dev->dev, "pcmcia: the driver " + "needs updating to supported shared IRQ lines.\n"); + } + if (ret) + dev_printk(KERN_INFO, &p_dev->dev, "request_irq() failed\n"); + else + p_dev->_irq = 1; - ret = 0; -out: - mutex_unlock(&s->ops_mutex); return ret; -} /* pcmcia_request_irq */ -EXPORT_SYMBOL(pcmcia_request_irq); +} /* pcmcia_request_exclusive_irq */ +EXPORT_SYMBOL(pcmcia_request_exclusive_irq); #ifdef CONFIG_PCMCIA_PROBE @@ -779,7 +749,7 @@ static int pcmcia_setup_isa_irq(struct pcmcia_device *p_dev, int type) p_dev); if (!ret) { free_irq(irq, p_dev); - p_dev->irq_v = s->pcmcia_irq = irq; + p_dev->irq = s->pcmcia_irq = irq; pcmcia_used_irq[irq]++; break; } @@ -820,12 +790,12 @@ int pcmcia_setup_irq(struct pcmcia_device *p_dev) { struct pcmcia_socket *s = p_dev->socket; - if (p_dev->irq_v) + if (p_dev->irq) return 0; /* already assigned? */ if (s->pcmcia_irq) { - p_dev->irq_v = s->pcmcia_irq; + p_dev->irq = s->pcmcia_irq; return 0; } @@ -839,7 +809,7 @@ int pcmcia_setup_irq(struct pcmcia_device *p_dev) /* but use the PCI irq otherwise */ if (s->pci_irq) { - p_dev->irq_v = s->pcmcia_irq = s->pci_irq; + p_dev->irq = s->pcmcia_irq = s->pci_irq; return 0; } @@ -947,7 +917,8 @@ void pcmcia_disable_device(struct pcmcia_device *p_dev) { pcmcia_release_configuration(p_dev); pcmcia_release_io(p_dev, &p_dev->io); - pcmcia_release_irq(p_dev, &p_dev->irq); + if (p_dev->_irq) + free_irq(p_dev->irq, p_dev->priv); if (p_dev->win) pcmcia_release_window(p_dev, p_dev->win); } diff --git a/drivers/scsi/pcmcia/aha152x_stub.c b/drivers/scsi/pcmcia/aha152x_stub.c index 528733b4a39..c1de4ba1f0a 100644 --- a/drivers/scsi/pcmcia/aha152x_stub.c +++ b/drivers/scsi/pcmcia/aha152x_stub.c @@ -105,7 +105,6 @@ static int aha152x_probe(struct pcmcia_device *link) link->io.NumPorts1 = 0x20; link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 10; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.Present = PRESENT_OPTION; @@ -160,8 +159,7 @@ static int aha152x_config_cs(struct pcmcia_device *link) if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; ret = pcmcia_request_configuration(link, &link->conf); @@ -172,7 +170,7 @@ static int aha152x_config_cs(struct pcmcia_device *link) memset(&s, 0, sizeof(s)); s.conf = "PCMCIA setup"; s.io_port = link->io.BasePort1; - s.irq = link->irq.AssignedIRQ; + s.irq = link->irq; s.scsiid = host_id; s.reconnect = reconnect; s.parity = parity; diff --git a/drivers/scsi/pcmcia/fdomain_stub.c b/drivers/scsi/pcmcia/fdomain_stub.c index 91404068407..8cb6d71f020 100644 --- a/drivers/scsi/pcmcia/fdomain_stub.c +++ b/drivers/scsi/pcmcia/fdomain_stub.c @@ -88,7 +88,6 @@ static int fdomain_probe(struct pcmcia_device *link) link->io.NumPorts1 = 0x10; link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 10; - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.Present = PRESENT_OPTION; @@ -133,8 +132,7 @@ static int fdomain_config(struct pcmcia_device *link) if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; ret = pcmcia_request_configuration(link, &link->conf); if (ret) @@ -144,7 +142,7 @@ static int fdomain_config(struct pcmcia_device *link) release_region(link->io.BasePort1, link->io.NumPorts1); /* Set configuration options for the fdomain driver */ - sprintf(str, "%d,%d", link->io.BasePort1, link->irq.AssignedIRQ); + sprintf(str, "%d,%d", link->io.BasePort1, link->irq); fdomain_setup(str); host = __fdomain_16x0_detect(&fdomain_driver_template); diff --git a/drivers/scsi/pcmcia/nsp_cs.c b/drivers/scsi/pcmcia/nsp_cs.c index 02124645487..24c78ed98f0 100644 --- a/drivers/scsi/pcmcia/nsp_cs.c +++ b/drivers/scsi/pcmcia/nsp_cs.c @@ -1563,13 +1563,6 @@ static int nsp_cs_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 10; /* not used */ - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; - - /* Interrupt handler */ - link->irq.Handler = &nspintr; - link->irq.Attributes |= IRQF_SHARED; - /* General socket configuration */ link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -1646,8 +1639,7 @@ static int nsp_cs_config_check(struct pcmcia_device *p_dev, } /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -1720,10 +1712,8 @@ static int nsp_cs_config(struct pcmcia_device *link) if (ret) goto cs_failed; - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - if (pcmcia_request_irq(link, &link->irq)) - goto cs_failed; - } + if (pcmcia_request_irq(link, nspintr)) + goto cs_failed; ret = pcmcia_request_configuration(link, &link->conf); if (ret) @@ -1741,7 +1731,7 @@ static int nsp_cs_config(struct pcmcia_device *link) /* Set port and IRQ */ data->BaseAddress = link->io.BasePort1; data->NumAddress = link->io.NumPorts1; - data->IrqNumber = link->irq.AssignedIRQ; + data->IrqNumber = link->irq; nsp_dbg(NSP_DEBUG_INIT, "I/O[0x%x+0x%x] IRQ %d", data->BaseAddress, data->NumAddress, data->IrqNumber); @@ -1775,7 +1765,7 @@ static int nsp_cs_config(struct pcmcia_device *link) printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10); } if (link->conf.Attributes & CONF_ENABLE_IRQ) { - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); } if (link->io.NumPorts1) { printk(", io 0x%04x-0x%04x", link->io.BasePort1, diff --git a/drivers/scsi/pcmcia/qlogic_stub.c b/drivers/scsi/pcmcia/qlogic_stub.c index f85f094870b..c3a4428dbcf 100644 --- a/drivers/scsi/pcmcia/qlogic_stub.c +++ b/drivers/scsi/pcmcia/qlogic_stub.c @@ -161,7 +161,6 @@ static int qlogic_probe(struct pcmcia_device *link) link->io.NumPorts1 = 16; link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 10; - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.Present = PRESENT_OPTION; @@ -209,8 +208,7 @@ static int qlogic_config(struct pcmcia_device * link) if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; ret = pcmcia_request_configuration(link, &link->conf); @@ -227,10 +225,10 @@ static int qlogic_config(struct pcmcia_device * link) /* The KXL-810AN has a bigger IO port window */ if (link->io.NumPorts1 == 32) host = qlogic_detect(&qlogicfas_driver_template, link, - link->io.BasePort1 + 16, link->irq.AssignedIRQ); + link->io.BasePort1 + 16, link->irq); else host = qlogic_detect(&qlogicfas_driver_template, link, - link->io.BasePort1, link->irq.AssignedIRQ); + link->io.BasePort1, link->irq); if (!host) { printk(KERN_INFO "%s: no SCSI devices found\n", qlogic_name); @@ -258,7 +256,7 @@ static void qlogic_release(struct pcmcia_device *link) scsi_remove_host(info->host); - free_irq(link->irq.AssignedIRQ, info->host); + free_irq(link->irq, info->host); pcmcia_disable_device(link); scsi_host_put(info->host); diff --git a/drivers/scsi/pcmcia/sym53c500_cs.c b/drivers/scsi/pcmcia/sym53c500_cs.c index e7564d8f0cb..6eacf4ca200 100644 --- a/drivers/scsi/pcmcia/sym53c500_cs.c +++ b/drivers/scsi/pcmcia/sym53c500_cs.c @@ -719,8 +719,7 @@ SYM53C500_config(struct pcmcia_device *link) if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); - if (ret) + if (!link->irq) goto failed; ret = pcmcia_request_configuration(link, &link->conf); @@ -752,7 +751,7 @@ SYM53C500_config(struct pcmcia_device *link) * 0x320, 0x330, 0x340, 0x350 */ port_base = link->io.BasePort1; - irq_level = link->irq.AssignedIRQ; + irq_level = link->irq; DEB(printk("SYM53C500: port_base=0x%x, irq=%d, fast_pio=%d\n", port_base, irq_level, USE_FAST_PIO);) @@ -866,7 +865,6 @@ SYM53C500_probe(struct pcmcia_device *link) link->io.NumPorts1 = 16; link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.IOAddrLines = 10; - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c index 8cfa5b12ea7..6459252ed37 100644 --- a/drivers/serial/serial_cs.c +++ b/drivers/serial/serial_cs.c @@ -343,7 +343,6 @@ static int serial_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_8; link->io.NumPorts1 = 8; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->conf.Attributes = CONF_ENABLE_IRQ; if (do_sound) { link->conf.Attributes |= CONF_ENABLE_SPKR; @@ -486,7 +485,7 @@ static int simple_config(struct pcmcia_device *link) } if (info->slave) { return setup_serial(link, info, port, - link->irq.AssignedIRQ); + link->irq); } } @@ -507,10 +506,6 @@ static int simple_config(struct pcmcia_device *link) return -1; found_port: - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) - link->irq.AssignedIRQ = 0; - if (info->multi && (info->manfid == MANFID_3COM)) link->conf.ConfigIndex &= ~(0x08); @@ -523,7 +518,7 @@ found_port: i = pcmcia_request_configuration(link, &link->conf); if (i != 0) return -1; - return setup_serial(link, info, link->io.BasePort1, link->irq.AssignedIRQ); + return setup_serial(link, info, link->io.BasePort1, link->irq); } static int multi_config_check(struct pcmcia_device *p_dev, @@ -586,13 +581,9 @@ static int multi_config(struct pcmcia_device *link) } } - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) { - /* FIXME: comment does not fit, error handling does not fit */ - printk(KERN_NOTICE - "serial_cs: no usable port range found, giving up\n"); - link->irq.AssignedIRQ = 0; - } + if (!link->irq) + dev_warn(&link->dev, + "serial_cs: no usable IRQ found, continuing...\n"); /* * Apply any configuration quirks. @@ -615,11 +606,11 @@ static int multi_config(struct pcmcia_device *link) if (link->conf.ConfigIndex == 1 || link->conf.ConfigIndex == 3) { err = setup_serial(link, info, base2, - link->irq.AssignedIRQ); + link->irq); base2 = link->io.BasePort1; } else { err = setup_serial(link, info, link->io.BasePort1, - link->irq.AssignedIRQ); + link->irq); } info->c950ctrl = base2; @@ -633,10 +624,10 @@ static int multi_config(struct pcmcia_device *link) return 0; } - setup_serial(link, info, link->io.BasePort1, link->irq.AssignedIRQ); + setup_serial(link, info, link->io.BasePort1, link->irq); for (i = 0; i < info->multi - 1; i++) setup_serial(link, info, base2 + (8 * i), - link->irq.AssignedIRQ); + link->irq); return 0; } diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c index 80ff7d9e60d..bc9bdb277be 100644 --- a/drivers/ssb/main.c +++ b/drivers/ssb/main.c @@ -490,7 +490,7 @@ static int ssb_devices_register(struct ssb_bus *bus) break; case SSB_BUSTYPE_PCMCIA: #ifdef CONFIG_SSB_PCMCIAHOST - sdev->irq = bus->host_pcmcia->irq.AssignedIRQ; + sdev->irq = bus->host_pcmcia->irq; dev->parent = &bus->host_pcmcia->dev; #endif break; diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c index 5632991760a..e0352c6cf82 100644 --- a/drivers/staging/comedi/drivers/cb_das16_cs.c +++ b/drivers/staging/comedi/drivers/cb_das16_cs.c @@ -180,12 +180,12 @@ static int das16cs_attach(struct comedi_device *dev, } printk("\n"); - ret = request_irq(link->irq.AssignedIRQ, das16cs_interrupt, + ret = request_irq(link->irq, das16cs_interrupt, IRQF_SHARED, "cb_das16_cs", dev); if (ret < 0) { return ret; } - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; printk("irq=%u ", dev->irq); dev->board_ptr = das16cs_probe(dev, link); @@ -702,10 +702,6 @@ static int das16cs_pcmcia_attach(struct pcmcia_device *link) link->priv = local; /* Initialize the pcmcia_device structure */ - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = NULL; - link->conf.Attributes = 0; link->conf.IntType = INT_MEMORY_AND_IO; @@ -740,8 +736,7 @@ static int das16cs_pcmcia_config_loop(struct pcmcia_device *p_dev, return -EINVAL; /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -780,16 +775,9 @@ static void das16cs_pcmcia_config(struct pcmcia_device *link) goto failed; } - /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + if (!link->irq) + goto failed; + /* This actually configures the PCMCIA socket -- setting up the I/O windows and the interrupt mapping, and putting the @@ -811,7 +799,7 @@ static void das16cs_pcmcia_config(struct pcmcia_device *link) printk(KERN_INFO "%s: index 0x%02x", dev->node.dev_name, link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %u", link->irq.AssignedIRQ); + printk(", irq %u", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1 + link->io.NumPorts1 - 1); diff --git a/drivers/staging/comedi/drivers/das08_cs.c b/drivers/staging/comedi/drivers/das08_cs.c index 9164ce158dc..bd69c4fdcbf 100644 --- a/drivers/staging/comedi/drivers/das08_cs.c +++ b/drivers/staging/comedi/drivers/das08_cs.c @@ -172,10 +172,6 @@ static int das08_pcmcia_attach(struct pcmcia_device *link) local->link = link; link->priv = local; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; - link->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -229,8 +225,7 @@ static int das08_pcmcia_config_loop(struct pcmcia_device *p_dev, return -ENODEV; /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -277,11 +272,8 @@ static void das08_pcmcia_config(struct pcmcia_device *link) goto failed; } - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + if (!link->irq) + goto failed; /* This actually configures the PCMCIA socket -- setting up @@ -304,7 +296,7 @@ static void das08_pcmcia_config(struct pcmcia_device *link) printk(KERN_INFO "%s: index 0x%02x", dev->node.dev_name, link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %u", link->irq.AssignedIRQ); + printk(", irq %u", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1 + link->io.NumPorts1 - 1); diff --git a/drivers/staging/comedi/drivers/ni_daq_700.c b/drivers/staging/comedi/drivers/ni_daq_700.c index 7ea64538e05..072bc4b6201 100644 --- a/drivers/staging/comedi/drivers/ni_daq_700.c +++ b/drivers/staging/comedi/drivers/ni_daq_700.c @@ -380,7 +380,7 @@ static int dio700_attach(struct comedi_device *dev, struct comedi_devconfig *it) return -EIO; iobase = link->io.BasePort1; #ifdef incomplete - irq = link->irq.AssignedIRQ; + irq = link->irq; #endif break; default: @@ -502,10 +502,6 @@ static int dio700_cs_attach(struct pcmcia_device *link) local->link = link; link->priv = local; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -577,8 +573,7 @@ static int dio700_pcmcia_config_loop(struct pcmcia_device *p_dev, } /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -639,16 +634,8 @@ static void dio700_config(struct pcmcia_device *link) goto failed; } - /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + if (!link->irq) + goto failed; /* This actually configures the PCMCIA socket -- setting up @@ -671,7 +658,7 @@ static void dio700_config(struct pcmcia_device *link) printk(KERN_INFO "%s: index 0x%02x", dev->node.dev_name, link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1 + link->io.NumPorts1 - 1); diff --git a/drivers/staging/comedi/drivers/ni_daq_dio24.c b/drivers/staging/comedi/drivers/ni_daq_dio24.c index ddc312b5d20..2259fb40608 100644 --- a/drivers/staging/comedi/drivers/ni_daq_dio24.c +++ b/drivers/staging/comedi/drivers/ni_daq_dio24.c @@ -131,7 +131,7 @@ static int dio24_attach(struct comedi_device *dev, struct comedi_devconfig *it) return -EIO; iobase = link->io.BasePort1; #ifdef incomplete - irq = link->irq.AssignedIRQ; + irq = link->irq; #endif break; default: @@ -253,10 +253,6 @@ static int dio24_cs_attach(struct pcmcia_device *link) local->link = link; link->priv = local; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -328,8 +324,7 @@ static int dio24_pcmcia_config_loop(struct pcmcia_device *p_dev, } /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -390,16 +385,8 @@ static void dio24_config(struct pcmcia_device *link) goto failed; } - /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + if (!link->irq) + goto failed; /* This actually configures the PCMCIA socket -- setting up @@ -422,7 +409,7 @@ static void dio24_config(struct pcmcia_device *link) printk(KERN_INFO "%s: index 0x%02x", dev->node.dev_name, link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1 + link->io.NumPorts1 - 1); diff --git a/drivers/staging/comedi/drivers/ni_labpc_cs.c b/drivers/staging/comedi/drivers/ni_labpc_cs.c index 6e4ed0d9105..907b2ae467b 100644 --- a/drivers/staging/comedi/drivers/ni_labpc_cs.c +++ b/drivers/staging/comedi/drivers/ni_labpc_cs.c @@ -144,7 +144,7 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it) if (!link) return -EIO; iobase = link->io.BasePort1; - irq = link->irq.AssignedIRQ; + irq = link->irq; break; default: printk("bug! couldn't determine board type\n"); @@ -229,10 +229,6 @@ static int labpc_cs_attach(struct pcmcia_device *link) local->link = link; link->priv = local; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = NULL; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -306,9 +302,7 @@ static int labpc_pcmcia_config_loop(struct pcmcia_device *p_dev, } /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= - (CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ); + p_dev->conf.Attributes |= CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -368,16 +362,8 @@ static void labpc_config(struct pcmcia_device *link) goto failed; } - /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + if (!link->irq) + goto failed; /* This actually configures the PCMCIA socket -- setting up @@ -400,7 +386,7 @@ static void labpc_config(struct pcmcia_device *link) printk(KERN_INFO "%s: index 0x%02x", dev->node.dev_name, link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1 + link->io.NumPorts1 - 1); diff --git a/drivers/staging/comedi/drivers/ni_mio_cs.c b/drivers/staging/comedi/drivers/ni_mio_cs.c index dc4849a40c9..a6007abce34 100644 --- a/drivers/staging/comedi/drivers/ni_mio_cs.c +++ b/drivers/staging/comedi/drivers/ni_mio_cs.c @@ -272,7 +272,6 @@ static int cs_attach(struct pcmcia_device *link) { link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; link->io.NumPorts1 = 16; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -344,10 +343,8 @@ static void mio_cs_config(struct pcmcia_device *link) return; } - ret = pcmcia_request_irq(link, &link->irq); - if (ret) { - printk("pcmcia_request_irq() returned error: %i\n", ret); - } + if (!link->irq) + dev_info(&link->dev, "no IRQ available\n"); ret = pcmcia_request_configuration(link, &link->conf); @@ -369,7 +366,7 @@ static int mio_cs_attach(struct comedi_device *dev, struct comedi_devconfig *it) dev->driver = &driver_ni_mio_cs; dev->iobase = link->io.BasePort1; - irq = link->irq.AssignedIRQ; + irq = link->irq; printk("comedi%d: %s: DAQCard: io 0x%04lx, irq %u, ", dev->minor, dev->driver->driver_name, dev->iobase, irq); diff --git a/drivers/staging/comedi/drivers/quatech_daqp_cs.c b/drivers/staging/comedi/drivers/quatech_daqp_cs.c index 3325f24448b..7aa17f92968 100644 --- a/drivers/staging/comedi/drivers/quatech_daqp_cs.c +++ b/drivers/staging/comedi/drivers/quatech_daqp_cs.c @@ -1040,10 +1040,6 @@ static int daqp_cs_attach(struct pcmcia_device *link) local->link = link; link->priv = local; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = daqp_interrupt; - /* General socket configuration defaults can go here. In this client, we assume very little, and rely on the CIS for almost @@ -1105,8 +1101,7 @@ static int daqp_pcmcia_config_loop(struct pcmcia_device *p_dev, return -ENODEV; /* Do we need to allocate an interrupt? */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -1144,16 +1139,9 @@ static void daqp_cs_config(struct pcmcia_device *link) goto failed; } - /* - Allocate an interrupt line. Note that this does not assign a - handler to the interrupt, unless the 'Handler' member of the - irq structure is initialized. - */ - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } + ret = pcmcia_request_irq(link, daqp_interrupt); + if (ret) + goto failed; /* This actually configures the PCMCIA socket -- setting up @@ -1180,7 +1168,7 @@ static void daqp_cs_config(struct pcmcia_device *link) printk(KERN_INFO "%s: index 0x%02x", dev->node.dev_name, link->conf.ConfigIndex); if (link->conf.Attributes & CONF_ENABLE_IRQ) - printk(", irq %u", link->irq.AssignedIRQ); + printk(", irq %u", link->irq); if (link->io.NumPorts1) printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1 + link->io.NumPorts1 - 1); diff --git a/drivers/staging/netwave/netwave_cs.c b/drivers/staging/netwave/netwave_cs.c index 3875a722d12..449e6a5c19e 100644 --- a/drivers/staging/netwave/netwave_cs.c +++ b/drivers/staging/netwave/netwave_cs.c @@ -382,10 +382,6 @@ static int netwave_probe(struct pcmcia_device *link) link->io.Attributes2 = IO_DATA_PATH_WIDTH_16; */ link->io.IOAddrLines = 5; - /* Interrupt setup */ - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - link->irq.Handler = &netwave_interrupt; - /* General socket configuration */ link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; @@ -732,7 +728,7 @@ static int netwave_pcmcia_config(struct pcmcia_device *link) { * Now allocate an interrupt line. Note that this does not * actually assign a handler to the interrupt. */ - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_irq(link, netwave_interrupt); if (ret) goto failed; @@ -767,7 +763,7 @@ static int netwave_pcmcia_config(struct pcmcia_device *link) { ramBase = ioremap(req.Base, 0x8000); priv->ramBase = ramBase; - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; SET_NETDEV_DEV(dev, &link->dev); diff --git a/drivers/staging/wavelan/wavelan_cs.c b/drivers/staging/wavelan/wavelan_cs.c index 04f691d127b..37fa85517a5 100644 --- a/drivers/staging/wavelan/wavelan_cs.c +++ b/drivers/staging/wavelan/wavelan_cs.c @@ -3850,12 +3850,8 @@ wv_pcmcia_config(struct pcmcia_device * link) if (i != 0) break; - /* - * Now allocate an interrupt line. Note that this does not - * actually assign a handler to the interrupt. - */ - i = pcmcia_request_irq(link, &link->irq); - if (i != 0) + i = pcmcia_request_interrupt(link, wavelan_interrupt); + if (!i) break; /* @@ -3890,7 +3886,7 @@ wv_pcmcia_config(struct pcmcia_device * link) break; /* Feed device with this info... */ - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; netif_start_queue(dev); @@ -4437,10 +4433,6 @@ wavelan_probe(struct pcmcia_device *p_dev) p_dev->io.Attributes1 = IO_DATA_PATH_WIDTH_8; p_dev->io.IOAddrLines = 3; - /* Interrupt setup */ - p_dev->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; - p_dev->irq.Handler = wavelan_interrupt; - /* General socket configuration */ p_dev->conf.Attributes = CONF_ENABLE_IRQ; p_dev->conf.IntType = INT_MEMORY_AND_IO; @@ -4487,7 +4479,6 @@ wavelan_probe(struct pcmcia_device *p_dev) ret = wv_hw_config(dev); if (ret) { - dev->irq = 0; pcmcia_disable_device(p_dev); return ret; } diff --git a/drivers/staging/wlags49_h2/wl_cs.c b/drivers/staging/wlags49_h2/wl_cs.c index 9da42e66085..c9d99d88b78 100644 --- a/drivers/staging/wlags49_h2/wl_cs.c +++ b/drivers/staging/wlags49_h2/wl_cs.c @@ -156,15 +156,12 @@ static int wl_adapter_attach(struct pcmcia_device *link) link->io.NumPorts1 = HCF_NUM_IO_PORTS; link->io.Attributes1 = IO_DATA_PATH_WIDTH_16; link->io.IOAddrLines = 6; - link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING | IRQ_HANDLE_PRESENT; - link->irq.IRQInfo1 = IRQ_INFO2_VALID | IRQ_LEVEL_ID; - link->irq.Handler = &wl_isr; link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.ConfigIndex = 5; link->conf.Present = PRESENT_OPTION; - link->priv = link->irq.Instance = dev; + link->priv = dev; lp = wl_priv(dev); lp->link = link; @@ -318,11 +315,11 @@ void wl_adapter_insert( struct pcmcia_device *link ) link->conf.Attributes |= CONF_ENABLE_IRQ; CS_CHECK(RequestIO, pcmcia_request_io(link, &link->io)); - CS_CHECK(RequestIRQ, pcmcia_request_irq(link, &link->irq)); + CS_CHECK(RequestIRQ, pcmcia_request_irq(link, wl_isr)); CS_CHECK(RequestConfiguration, pcmcia_request_configuration(link, &link->conf)); - dev->irq = link->irq.AssignedIRQ; + dev->irq = link->irq; dev->base_addr = link->io.BasePort1; SET_NETDEV_DEV(dev, &handle_to_dev(link)); diff --git a/drivers/usb/host/sl811_cs.c b/drivers/usb/host/sl811_cs.c index 39d253e841f..a712788f9b1 100644 --- a/drivers/usb/host/sl811_cs.c +++ b/drivers/usb/host/sl811_cs.c @@ -163,8 +163,7 @@ static int sl811_cs_config_check(struct pcmcia_device *p_dev, dflt->vpp1.param[CISTPL_POWER_VNOM]/10000; /* we need an interrupt */ - if (cfg->irq.IRQInfo1 || dflt->irq.IRQInfo1) - p_dev->conf.Attributes |= CONF_ENABLE_IRQ; + p_dev->conf.Attributes |= CONF_ENABLE_IRQ; /* IO window settings */ p_dev->io.NumPorts1 = p_dev->io.NumPorts2 = 0; @@ -197,11 +196,8 @@ static int sl811_cs_config(struct pcmcia_device *link) /* require an IRQ and two registers */ if (!link->io.NumPorts1 || link->io.NumPorts1 < 2) goto failed; - if (link->conf.Attributes & CONF_ENABLE_IRQ) { - ret = pcmcia_request_irq(link, &link->irq); - if (ret) - goto failed; - } else + + if (!link->irq) goto failed; ret = pcmcia_request_configuration(link, &link->conf); @@ -216,12 +212,12 @@ static int sl811_cs_config(struct pcmcia_device *link) dev->node.dev_name, link->conf.ConfigIndex); if (link->conf.Vpp) printk(", Vpp %d.%d", link->conf.Vpp/10, link->conf.Vpp%10); - printk(", irq %d", link->irq.AssignedIRQ); + printk(", irq %d", link->irq); printk(", io 0x%04x-0x%04x", link->io.BasePort1, link->io.BasePort1+link->io.NumPorts1-1); printk("\n"); - if (sl811_hc_init(parent, link->io.BasePort1, link->irq.AssignedIRQ) + if (sl811_hc_init(parent, link->io.BasePort1, link->irq) < 0) { failed: printk(KERN_WARNING "sl811_cs_config failed\n"); @@ -241,10 +237,6 @@ static int sl811_cs_probe(struct pcmcia_device *link) local->p_dev = link; link->priv = local; - /* Initialize */ - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; - link->irq.Handler = NULL; - link->conf.Attributes = 0; link->conf.IntType = INT_MEMORY_AND_IO; diff --git a/include/pcmcia/cs.h b/include/pcmcia/cs.h index af615716dc2..a04e6caa585 100644 --- a/include/pcmcia/cs.h +++ b/include/pcmcia/cs.h @@ -114,13 +114,6 @@ typedef struct io_req_t { #define IO_DATA_PATH_WIDTH_16 0x08 #define IO_DATA_PATH_WIDTH_AUTO 0x10 -/* For RequestIRQ and ReleaseIRQ */ -typedef struct irq_req_t { - u_int Attributes; - u_int AssignedIRQ; - irq_handler_t Handler; -} irq_req_t; - /* Attributes for RequestIRQ and ReleaseIRQ */ #define IRQ_TYPE 0x03 #define IRQ_TYPE_EXCLUSIVE 0x00 diff --git a/include/pcmcia/ds.h b/include/pcmcia/ds.h index 52ebe75664e..d18330b401b 100644 --- a/include/pcmcia/ds.h +++ b/include/pcmcia/ds.h @@ -91,12 +91,11 @@ struct pcmcia_device { dev_node_t *dev_node; u_int open; io_req_t io; - irq_req_t irq; config_req_t conf; window_handle_t win; /* device setup */ - unsigned int irq_v; /* do not use directly yet */ + unsigned int irq; /* Is the device suspended? */ u16 suspended:1; @@ -194,7 +193,13 @@ int pcmcia_access_configuration_register(struct pcmcia_device *p_dev, /* device configuration */ int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req); -int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req); + +int __must_check __deprecated +pcmcia_request_exclusive_irq(struct pcmcia_device *p_dev, + irq_handler_t handler); +int __must_check pcmcia_request_irq(struct pcmcia_device *p_dev, + irq_handler_t handler); + int pcmcia_request_configuration(struct pcmcia_device *p_dev, config_req_t *req); diff --git a/sound/pcmcia/pdaudiocf/pdaudiocf.c b/sound/pcmcia/pdaudiocf/pdaudiocf.c index dcf85390c5f..60fddf363d5 100644 --- a/sound/pcmcia/pdaudiocf/pdaudiocf.c +++ b/sound/pcmcia/pdaudiocf/pdaudiocf.c @@ -142,11 +142,6 @@ static int snd_pdacf_probe(struct pcmcia_device *link) link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.NumPorts1 = 16; - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; - /* FIXME: This driver should be updated to allow for dynamic IRQ sharing */ - /* link->irq.Attributes = IRQ_TYPE_DYNAMIC_SHARING; */ - - link->irq.Handler = pdacf_interrupt; link->conf.Attributes = CONF_ENABLE_IRQ | CONF_ENABLE_PULSE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.ConfigIndex = 1; @@ -228,7 +223,7 @@ static int pdacf_config(struct pcmcia_device *link) if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_exclusive_irq(link, pdacf_interrupt); if (ret) goto failed; @@ -236,7 +231,7 @@ static int pdacf_config(struct pcmcia_device *link) if (ret) goto failed; - if (snd_pdacf_assign_resources(pdacf, link->io.BasePort1, link->irq.AssignedIRQ) < 0) + if (snd_pdacf_assign_resources(pdacf, link->io.BasePort1, link->irq) < 0) goto failed; link->dev_node = &pdacf->node; diff --git a/sound/pcmcia/vx/vxpocket.c b/sound/pcmcia/vx/vxpocket.c index cfd1438bcc6..5eced7a7c98 100644 --- a/sound/pcmcia/vx/vxpocket.c +++ b/sound/pcmcia/vx/vxpocket.c @@ -162,10 +162,6 @@ static int snd_vxpocket_new(struct snd_card *card, int ibl, link->io.Attributes1 = IO_DATA_PATH_WIDTH_AUTO; link->io.NumPorts1 = 16; - link->irq.Attributes = IRQ_TYPE_EXCLUSIVE; - - link->irq.Handler = &snd_vx_irq_handler; - link->conf.Attributes = CONF_ENABLE_IRQ; link->conf.IntType = INT_MEMORY_AND_IO; link->conf.ConfigIndex = 1; @@ -235,7 +231,7 @@ static int vxpocket_config(struct pcmcia_device *link) if (ret) goto failed; - ret = pcmcia_request_irq(link, &link->irq); + ret = pcmcia_request_exclusive_irq(link, snd_vx_irq_handler); if (ret) goto failed; @@ -246,7 +242,7 @@ static int vxpocket_config(struct pcmcia_device *link) chip->dev = &link->dev; snd_card_set_dev(chip->card, chip->dev); - if (snd_vxpocket_assign_resources(chip, link->io.BasePort1, link->irq.AssignedIRQ) < 0) + if (snd_vxpocket_assign_resources(chip, link->io.BasePort1, link->irq) < 0) goto failed; link->dev_node = &vxp->node; -- cgit v1.2.3-70-g09d2 From b9300aa7449f6636b188743d09199dcf27b1a4b4 Mon Sep 17 00:00:00 2001 From: Dominik Brodowski Date: Sat, 20 Mar 2010 19:43:40 +0100 Subject: pcmcia: dev_node removal (core) Remove the dev_node declaration. We now only pass the device name to the deprecated userspace tools. Signed-off-by: Dominik Brodowski --- Documentation/pcmcia/driver-changes.txt | 3 +++ drivers/pcmcia/ds.c | 2 -- drivers/pcmcia/pcmcia_ioctl.c | 15 +++------------ include/pcmcia/ds.h | 10 ---------- 4 files changed, 6 insertions(+), 24 deletions(-) (limited to 'Documentation') diff --git a/Documentation/pcmcia/driver-changes.txt b/Documentation/pcmcia/driver-changes.txt index 3268a9ae727..61bc4e94311 100644 --- a/Documentation/pcmcia/driver-changes.txt +++ b/Documentation/pcmcia/driver-changes.txt @@ -1,4 +1,7 @@ This file details changes in 2.6 which affect PCMCIA card driver authors: +* No dev_node_t (as of 2.6.35) + There is no more need to fill out a "dev_node_t" structure. + * New IRQ request rules (as of 2.6.35) Instead of the old pcmcia_request_irq() interface, drivers may now choose between: diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index a2649c7b05b..0e12d85dd72 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -371,8 +371,6 @@ static int pcmcia_device_remove(struct device *dev) if (p_drv->remove) p_drv->remove(p_dev); - p_dev->dev_node = NULL; - /* check for proper unloading */ if (p_dev->_irq || p_dev->_io || p_dev->_locked) dev_printk(KERN_INFO, dev, diff --git a/drivers/pcmcia/pcmcia_ioctl.c b/drivers/pcmcia/pcmcia_ioctl.c index fe98aa9b1ae..a42a6c7be10 100644 --- a/drivers/pcmcia/pcmcia_ioctl.c +++ b/drivers/pcmcia/pcmcia_ioctl.c @@ -571,7 +571,6 @@ static struct pci_bus *pcmcia_lookup_bus(struct pcmcia_socket *s) static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int first) { - dev_node_t *node; struct pcmcia_device *p_dev; struct pcmcia_driver *p_drv; int ret = 0; @@ -633,21 +632,13 @@ static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int goto err_put; } - if (first) - node = p_dev->dev_node; - else - for (node = p_dev->dev_node; node; node = node->next) - if (node == bind_info->next) - break; - if (!node) { + if (!first) { ret = -ENODEV; goto err_put; } - strlcpy(bind_info->name, node->dev_name, DEV_NAME_LEN); - bind_info->major = node->major; - bind_info->minor = node->minor; - bind_info->next = node->next; + strlcpy(bind_info->name, dev_name(&p_dev->dev), DEV_NAME_LEN); + bind_info->next = NULL; err_put: pcmcia_put_dev(p_dev); diff --git a/include/pcmcia/ds.h b/include/pcmcia/ds.h index d18330b401b..b4429f78b9c 100644 --- a/include/pcmcia/ds.h +++ b/include/pcmcia/ds.h @@ -62,15 +62,6 @@ struct pcmcia_driver { int pcmcia_register_driver(struct pcmcia_driver *driver); void pcmcia_unregister_driver(struct pcmcia_driver *driver); -/* Some drivers use dev_node_t to store char or block device information. - * Don't use this in new drivers, though. - */ -typedef struct dev_node_t { - char dev_name[DEV_NAME_LEN]; - u_short major, minor; - struct dev_node_t *next; -} dev_node_t; - struct pcmcia_device { /* the socket and the device_no [for multifunction devices] uniquely define a pcmcia_device */ @@ -88,7 +79,6 @@ struct pcmcia_device { struct list_head socket_device_list; /* deprecated, will be cleaned up soon */ - dev_node_t *dev_node; u_int open; io_req_t io; config_req_t conf; -- cgit v1.2.3-70-g09d2 From a8cd4561ea176f51e9f4707873ca4eff8fd5ee70 Mon Sep 17 00:00:00 2001 From: Anand Gadiyar Date: Mon, 10 May 2010 14:51:19 +0530 Subject: fix "seperate" typos in comments s/seperate/separate Signed-off-by: Anand Gadiyar Signed-off-by: Jiri Kosina --- Documentation/filesystems/logfs.txt | 8 ++++---- arch/arm/mach-s3c2443/clock.c | 2 +- arch/arm/plat-samsung/include/plat/gpio-core.h | 2 +- drivers/usb/host/ehci-omap.c | 2 +- fs/logfs/dir.c | 2 +- fs/logfs/logfs.h | 2 +- fs/logfs/logfs_abi.h | 10 +++++----- 7 files changed, 14 insertions(+), 14 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/logfs.txt b/Documentation/filesystems/logfs.txt index e64c94ba401..bca42c22a14 100644 --- a/Documentation/filesystems/logfs.txt +++ b/Documentation/filesystems/logfs.txt @@ -59,7 +59,7 @@ Levels ------ Garbage collection (GC) may fail if all data is written -indiscriminately. One requirement of GC is that data is seperated +indiscriminately. One requirement of GC is that data is separated roughly according to the distance between the tree root and the data. Effectively that means all file data is on level 0, indirect blocks are on levels 1, 2, 3 4 or 5 for 1x, 2x, 3x, 4x or 5x indirect blocks, @@ -67,7 +67,7 @@ respectively. Inode file data is on level 6 for the inodes and 7-11 for indirect blocks. Each segment contains objects of a single level only. As a result, -each level requires its own seperate segment to be open for writing. +each level requires its own separate segment to be open for writing. Inode File ---------- @@ -106,9 +106,9 @@ Vim --- By cleverly predicting the life time of data, it is possible to -seperate long-living data from short-living data and thereby reduce +separate long-living data from short-living data and thereby reduce the GC overhead later. Each type of distinc life expectency (vim) can -have a seperate segment open for writing. Each (level, vim) tupel can +have a separate segment open for writing. Each (level, vim) tupel can be open just once. If an open segment with unknown vim is encountered at mount time, it is closed and ignored henceforth. diff --git a/arch/arm/mach-s3c2443/clock.c b/arch/arm/mach-s3c2443/clock.c index 62cd4eaee01..8a55e78f709 100644 --- a/arch/arm/mach-s3c2443/clock.c +++ b/arch/arm/mach-s3c2443/clock.c @@ -391,7 +391,7 @@ static struct clk clk_hsmmc = { /* i2s_eplldiv * - * This clock is the output from the I2S divisor of ESYSCLK, and is seperate + * This clock is the output from the I2S divisor of ESYSCLK, and is separate * from the mux that comes after it (cannot merge into one single clock) */ diff --git a/arch/arm/plat-samsung/include/plat/gpio-core.h b/arch/arm/plat-samsung/include/plat/gpio-core.h index 49ff406a706..16643e3029f 100644 --- a/arch/arm/plat-samsung/include/plat/gpio-core.h +++ b/arch/arm/plat-samsung/include/plat/gpio-core.h @@ -97,7 +97,7 @@ extern void s3c_gpiolib_add(struct s3c_gpio_chip *chip); * others = Special functions (dependant on bank) * * Note, since the code to deal with the case where there are two control - * registers instead of one, we do not have a seperate set of function + * registers instead of one, we do not have a separate set of function * (samsung_gpiolib_add_4bit2_chips)for each case. */ extern void samsung_gpiolib_add_4bit_chips(struct s3c_gpio_chip *chip, diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index a67a0030dd5..bed6de342ec 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -181,7 +181,7 @@ struct ehci_hcd_omap { void __iomem *ehci_base; /* Regulators for USB PHYs. - * Each PHY can have a seperate regulator. + * Each PHY can have a separate regulator. */ struct regulator *regulator[OMAP3_HS_USB_PORTS]; }; diff --git a/fs/logfs/dir.c b/fs/logfs/dir.c index 2396a85c0f5..72d1893ddd3 100644 --- a/fs/logfs/dir.c +++ b/fs/logfs/dir.c @@ -12,7 +12,7 @@ * Atomic dir operations * * Directory operations are by default not atomic. Dentries and Inodes are - * created/removed/altered in seperate operations. Therefore we need to do + * created/removed/altered in separate operations. Therefore we need to do * a small amount of journaling. * * Create, link, mkdir, mknod and symlink all share the same function to do diff --git a/fs/logfs/logfs.h b/fs/logfs/logfs.h index 0a3df1a0c93..9028d7f83bb 100644 --- a/fs/logfs/logfs.h +++ b/fs/logfs/logfs.h @@ -704,7 +704,7 @@ static inline gc_level_t expand_level(u64 ino, level_t __level) u8 level = (__force u8)__level; if (ino == LOGFS_INO_MASTER) { - /* ifile has seperate areas */ + /* ifile has separate areas */ level += LOGFS_MAX_LEVELS; } return (__force gc_level_t)level; diff --git a/fs/logfs/logfs_abi.h b/fs/logfs/logfs_abi.h index f674725663f..ae960519c54 100644 --- a/fs/logfs/logfs_abi.h +++ b/fs/logfs/logfs_abi.h @@ -50,9 +50,9 @@ static inline void check_##type(void) \ * 12 - gc recycled blocks, long-lived data * 13 - replacement blocks, short-lived data * - * Levels 1-11 are necessary for robust gc operations and help seperate + * Levels 1-11 are necessary for robust gc operations and help separate * short-lived metadata from longer-lived file data. In the future, - * file data should get seperated into several segments based on simple + * file data should get separated into several segments based on simple * heuristics. Old data recycled during gc operation is expected to be * long-lived. New data is of uncertain life expectancy. New data * used to replace older blocks in existing files is expected to be @@ -117,7 +117,7 @@ static inline void check_##type(void) \ #define pure_ofs(ofs) (ofs & ~LOGFS_FULLY_POPULATED) /* - * LogFS needs to seperate data into levels. Each level is defined as the + * LogFS needs to separate data into levels. Each level is defined as the * maximal possible distance from the master inode (inode of the inode file). * Data blocks reside on level 0, 1x indirect block on level 1, etc. * Inodes reside on level 6, indirect blocks for the inode file on levels 7-11. @@ -204,7 +204,7 @@ SIZE_CHECK(logfs_segment_header, LOGFS_SEGMENT_HEADERSIZE); * @ds_crc: crc32 of structure starting with the next field * @ds_ifile_levels: maximum number of levels for ifile * @ds_iblock_levels: maximum number of levels for regular files - * @ds_data_levels: number of seperate levels for data + * @ds_data_levels: number of separate levels for data * @pad0: reserved, must be 0 * @ds_feature_incompat: incompatible filesystem features * @ds_feature_ro_compat: read-only compatible filesystem features @@ -456,7 +456,7 @@ enum logfs_vim { * @vim: life expectancy of data * * "Areas" are segments currently being used for writing. There is at least - * one area per GC level. Several may be used to seperate long-living from + * one area per GC level. Several may be used to separate long-living from * short-living data. If an area with unknown vim is encountered, it can * simply be closed. * The write buffer immediately follow this header. -- cgit v1.2.3-70-g09d2 From d21670acab9fcb4bc74a40b68a6941059234c55c Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Wed, 14 Apr 2010 17:39:26 -0700 Subject: rcu: reduce the number of spurious RCU_SOFTIRQ invocations Lai Jiangshan noted that up to 10% of the RCU_SOFTIRQ are spurious, and traced this down to the fact that the current grace-period machinery will uselessly raise RCU_SOFTIRQ when a given CPU needs to go through a quiescent state, but has not yet done so. In this situation, there might well be nothing that RCU_SOFTIRQ can do, and the overhead can be worth worrying about in the ksoftirqd case. This patch therefore avoids raising RCU_SOFTIRQ in this situation. Changes since v1 (http://lkml.org/lkml/2010/3/30/122 from Lai Jiangshan): o Omit the rcu_qs_pending() prechecks, as they aren't that much less expensive than the quiescent-state checks. o Merge with the set_need_resched() patch that reduces IPIs. o Add the new n_rp_report_qs field to the rcu_pending tracing output. o Update the tracing documentation accordingly. Signed-off-by: Lai Jiangshan Signed-off-by: Paul E. McKenney --- Documentation/RCU/trace.txt | 35 +++++++++++++++++++---------------- kernel/rcutree.c | 11 ++++++----- kernel/rcutree.h | 1 + kernel/rcutree_trace.c | 4 +++- 4 files changed, 29 insertions(+), 22 deletions(-) (limited to 'Documentation') diff --git a/Documentation/RCU/trace.txt b/Documentation/RCU/trace.txt index 8608fd85e92..efd8cc95c06 100644 --- a/Documentation/RCU/trace.txt +++ b/Documentation/RCU/trace.txt @@ -256,23 +256,23 @@ o Each element of the form "1/1 0:127 ^0" represents one struct The output of "cat rcu/rcu_pending" looks as follows: rcu_sched: - 0 np=255892 qsp=53936 cbr=0 cng=14417 gpc=10033 gps=24320 nf=6445 nn=146741 - 1 np=261224 qsp=54638 cbr=0 cng=25723 gpc=16310 gps=2849 nf=5912 nn=155792 - 2 np=237496 qsp=49664 cbr=0 cng=2762 gpc=45478 gps=1762 nf=1201 nn=136629 - 3 np=236249 qsp=48766 cbr=0 cng=286 gpc=48049 gps=1218 nf=207 nn=137723 - 4 np=221310 qsp=46850 cbr=0 cng=26 gpc=43161 gps=4634 nf=3529 nn=123110 - 5 np=237332 qsp=48449 cbr=0 cng=54 gpc=47920 gps=3252 nf=201 nn=137456 - 6 np=219995 qsp=46718 cbr=0 cng=50 gpc=42098 gps=6093 nf=4202 nn=120834 - 7 np=249893 qsp=49390 cbr=0 cng=72 gpc=38400 gps=17102 nf=41 nn=144888 + 0 np=255892 qsp=53936 rpq=85 cbr=0 cng=14417 gpc=10033 gps=24320 nf=6445 nn=146741 + 1 np=261224 qsp=54638 rpq=33 cbr=0 cng=25723 gpc=16310 gps=2849 nf=5912 nn=155792 + 2 np=237496 qsp=49664 rpq=23 cbr=0 cng=2762 gpc=45478 gps=1762 nf=1201 nn=136629 + 3 np=236249 qsp=48766 rpq=98 cbr=0 cng=286 gpc=48049 gps=1218 nf=207 nn=137723 + 4 np=221310 qsp=46850 rpq=7 cbr=0 cng=26 gpc=43161 gps=4634 nf=3529 nn=123110 + 5 np=237332 qsp=48449 rpq=9 cbr=0 cng=54 gpc=47920 gps=3252 nf=201 nn=137456 + 6 np=219995 qsp=46718 rpq=12 cbr=0 cng=50 gpc=42098 gps=6093 nf=4202 nn=120834 + 7 np=249893 qsp=49390 rpq=42 cbr=0 cng=72 gpc=38400 gps=17102 nf=41 nn=144888 rcu_bh: - 0 np=146741 qsp=1419 cbr=0 cng=6 gpc=0 gps=0 nf=2 nn=145314 - 1 np=155792 qsp=12597 cbr=0 cng=0 gpc=4 gps=8 nf=3 nn=143180 - 2 np=136629 qsp=18680 cbr=0 cng=0 gpc=7 gps=6 nf=0 nn=117936 - 3 np=137723 qsp=2843 cbr=0 cng=0 gpc=10 gps=7 nf=0 nn=134863 - 4 np=123110 qsp=12433 cbr=0 cng=0 gpc=4 gps=2 nf=0 nn=110671 - 5 np=137456 qsp=4210 cbr=0 cng=0 gpc=6 gps=5 nf=0 nn=133235 - 6 np=120834 qsp=9902 cbr=0 cng=0 gpc=6 gps=3 nf=2 nn=110921 - 7 np=144888 qsp=26336 cbr=0 cng=0 gpc=8 gps=2 nf=0 nn=118542 + 0 np=146741 qsp=1419 rpq=6 cbr=0 cng=6 gpc=0 gps=0 nf=2 nn=145314 + 1 np=155792 qsp=12597 rpq=3 cbr=0 cng=0 gpc=4 gps=8 nf=3 nn=143180 + 2 np=136629 qsp=18680 rpq=1 cbr=0 cng=0 gpc=7 gps=6 nf=0 nn=117936 + 3 np=137723 qsp=2843 rpq=0 cbr=0 cng=0 gpc=10 gps=7 nf=0 nn=134863 + 4 np=123110 qsp=12433 rpq=0 cbr=0 cng=0 gpc=4 gps=2 nf=0 nn=110671 + 5 np=137456 qsp=4210 rpq=1 cbr=0 cng=0 gpc=6 gps=5 nf=0 nn=133235 + 6 np=120834 qsp=9902 rpq=2 cbr=0 cng=0 gpc=6 gps=3 nf=2 nn=110921 + 7 np=144888 qsp=26336 rpq=0 cbr=0 cng=0 gpc=8 gps=2 nf=0 nn=118542 As always, this is once again split into "rcu_sched" and "rcu_bh" portions, with CONFIG_TREE_PREEMPT_RCU kernels having an additional @@ -284,6 +284,9 @@ o "np" is the number of times that __rcu_pending() has been invoked o "qsp" is the number of times that the RCU was waiting for a quiescent state from this CPU. +o "rpq" is the number of times that the CPU had passed through + a quiescent state, but not yet reported it to RCU. + o "cbr" is the number of times that this CPU had RCU callbacks that had passed through a grace period, and were thus ready to be invoked. diff --git a/kernel/rcutree.c b/kernel/rcutree.c index c60fd74e7ec..ba6996943e2 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -1161,8 +1161,6 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp) */ void rcu_check_callbacks(int cpu, int user) { - if (!rcu_pending(cpu)) - return; /* if nothing for RCU to do. */ if (user || (idle_cpu(cpu) && rcu_scheduler_active && !in_softirq() && hardirq_count() <= (1 << HARDIRQ_SHIFT))) { @@ -1194,7 +1192,8 @@ void rcu_check_callbacks(int cpu, int user) rcu_bh_qs(cpu); } rcu_preempt_check_callbacks(cpu); - raise_softirq(RCU_SOFTIRQ); + if (rcu_pending(cpu)) + raise_softirq(RCU_SOFTIRQ); } #ifdef CONFIG_SMP @@ -1534,18 +1533,20 @@ static int __rcu_pending(struct rcu_state *rsp, struct rcu_data *rdp) check_cpu_stall(rsp, rdp); /* Is the RCU core waiting for a quiescent state from this CPU? */ - if (rdp->qs_pending) { + if (rdp->qs_pending && !rdp->passed_quiesc) { /* * If force_quiescent_state() coming soon and this CPU * needs a quiescent state, and this is either RCU-sched * or RCU-bh, force a local reschedule. */ + rdp->n_rp_qs_pending++; if (!rdp->preemptable && ULONG_CMP_LT(ACCESS_ONCE(rsp->jiffies_force_qs) - 1, jiffies)) set_need_resched(); - rdp->n_rp_qs_pending++; + } else if (rdp->qs_pending && rdp->passed_quiesc) { + rdp->n_rp_report_qs++; return 1; } diff --git a/kernel/rcutree.h b/kernel/rcutree.h index 11f171121ad..14c040b18ed 100644 --- a/kernel/rcutree.h +++ b/kernel/rcutree.h @@ -223,6 +223,7 @@ struct rcu_data { /* 5) __rcu_pending() statistics. */ unsigned long n_rcu_pending; /* rcu_pending() calls since boot. */ unsigned long n_rp_qs_pending; + unsigned long n_rp_report_qs; unsigned long n_rp_cb_ready; unsigned long n_rp_cpu_needs_gp; unsigned long n_rp_gp_completed; diff --git a/kernel/rcutree_trace.c b/kernel/rcutree_trace.c index d45db2e35d2..36c95b45738 100644 --- a/kernel/rcutree_trace.c +++ b/kernel/rcutree_trace.c @@ -241,11 +241,13 @@ static const struct file_operations rcugp_fops = { static void print_one_rcu_pending(struct seq_file *m, struct rcu_data *rdp) { seq_printf(m, "%3d%cnp=%ld " - "qsp=%ld cbr=%ld cng=%ld gpc=%ld gps=%ld nf=%ld nn=%ld\n", + "qsp=%ld rpq=%ld cbr=%ld cng=%ld " + "gpc=%ld gps=%ld nf=%ld nn=%ld\n", rdp->cpu, cpu_is_offline(rdp->cpu) ? '!' : ' ', rdp->n_rcu_pending, rdp->n_rp_qs_pending, + rdp->n_rp_report_qs, rdp->n_rp_cb_ready, rdp->n_rp_cpu_needs_gp, rdp->n_rp_gp_completed, -- cgit v1.2.3-70-g09d2 From f1d507beeab1d1d60a1c58eac7dc81522c6f4629 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Thu, 15 Apr 2010 15:49:46 -0700 Subject: rcu: improve the RCU CPU-stall warning documentation The existing Documentation/RCU/stallwarn.txt has proven unhelpful, so rework it a bit. In particular, show how to interpret the stall-warning messages. Signed-off-by: Paul E. McKenney --- Documentation/RCU/stallwarn.txt | 94 +++++++++++++++++++++++++++++++---------- 1 file changed, 71 insertions(+), 23 deletions(-) (limited to 'Documentation') diff --git a/Documentation/RCU/stallwarn.txt b/Documentation/RCU/stallwarn.txt index 1423d2570d7..44c6dcc93d6 100644 --- a/Documentation/RCU/stallwarn.txt +++ b/Documentation/RCU/stallwarn.txt @@ -3,35 +3,79 @@ Using RCU's CPU Stall Detector The CONFIG_RCU_CPU_STALL_DETECTOR kernel config parameter enables RCU's CPU stall detector, which detects conditions that unduly delay RCU grace periods. The stall detector's idea of what constitutes -"unduly delayed" is controlled by a pair of C preprocessor macros: +"unduly delayed" is controlled by a set of C preprocessor macros: RCU_SECONDS_TILL_STALL_CHECK This macro defines the period of time that RCU will wait from the beginning of a grace period until it issues an RCU CPU - stall warning. It is normally ten seconds. + stall warning. This time period is normally ten seconds. RCU_SECONDS_TILL_STALL_RECHECK This macro defines the period of time that RCU will wait after - issuing a stall warning until it issues another stall warning. - It is normally set to thirty seconds. + issuing a stall warning until it issues another stall warning + for the same stall. This time period is normally set to thirty + seconds. RCU_STALL_RAT_DELAY - The CPU stall detector tries to make the offending CPU rat on itself, - as this often gives better-quality stack traces. However, if - the offending CPU does not detect its own stall in the number - of jiffies specified by RCU_STALL_RAT_DELAY, then other CPUs will - complain. This is normally set to two jiffies. + The CPU stall detector tries to make the offending CPU print its + own warnings, as this often gives better-quality stack traces. + However, if the offending CPU does not detect its own stall in + the number of jiffies specified by RCU_STALL_RAT_DELAY, then + some other CPU will complain. This delay is normally set to + two jiffies. -The following problems can result in an RCU CPU stall warning: +When a CPU detects that it is stalling, it will print a message similar +to the following: + +INFO: rcu_sched_state detected stall on CPU 5 (t=2500 jiffies) + +This message indicates that CPU 5 detected that it was causing a stall, +and that the stall was affecting RCU-sched. This message will normally be +followed by a stack dump of the offending CPU. On TREE_RCU kernel builds, +RCU and RCU-sched are implemented by the same underlying mechanism, +while on TREE_PREEMPT_RCU kernel builds, RCU is instead implemented +by rcu_preempt_state. + +On the other hand, if the offending CPU fails to print out a stall-warning +message quickly enough, some other CPU will print a message similar to +the following: + +INFO: rcu_bh_state detected stalls on CPUs/tasks: { 3 5 } (detected by 2, 2502 jiffies) + +This message indicates that CPU 2 detected that CPUs 3 and 5 were both +causing stalls, and that the stall was affecting RCU-bh. This message +will normally be followed by stack dumps for each CPU. Please note that +TREE_PREEMPT_RCU builds can be stalled by tasks as well as by CPUs, +and that the tasks will be indicated by PID, for example, "P3421". +It is even possible for a rcu_preempt_state stall to be caused by both +CPUs -and- tasks, in which case the offending CPUs and tasks will all +be called out in the list. + +Finally, if the grace period ends just as the stall warning starts +printing, there will be a spurious stall-warning message: + +INFO: rcu_bh_state detected stalls on CPUs/tasks: { } (detected by 4, 2502 jiffies) + +This is rare, but does happen from time to time in real life. + +So your kernel printed an RCU CPU stall warning. The next question is +"What caused it?" The following problems can result in RCU CPU stall +warnings: o A CPU looping in an RCU read-side critical section. -o A CPU looping with interrupts disabled. +o A CPU looping with interrupts disabled. This condition can + result in RCU-sched and RCU-bh stalls. -o A CPU looping with preemption disabled. +o A CPU looping with preemption disabled. This condition can + result in RCU-sched stalls and, if ksoftirqd is in use, RCU-bh + stalls. + +o A CPU looping with bottom halves disabled. This condition can + result in RCU-sched and RCU-bh stalls. o For !CONFIG_PREEMPT kernels, a CPU looping anywhere in the kernel without invoking schedule(). @@ -39,20 +83,24 @@ o For !CONFIG_PREEMPT kernels, a CPU looping anywhere in the kernel o A bug in the RCU implementation. o A hardware failure. This is quite unlikely, but has occurred - at least once in a former life. A CPU failed in a running system, + at least once in real life. A CPU failed in a running system, becoming unresponsive, but not causing an immediate crash. This resulted in a series of RCU CPU stall warnings, eventually leading the realization that the CPU had failed. -The RCU, RCU-sched, and RCU-bh implementations have CPU stall warning. -SRCU does not do so directly, but its calls to synchronize_sched() will -result in RCU-sched detecting any CPU stalls that might be occurring. - -To diagnose the cause of the stall, inspect the stack traces. The offending -function will usually be near the top of the stack. If you have a series -of stall warnings from a single extended stall, comparing the stack traces -can often help determine where the stall is occurring, which will usually -be in the function nearest the top of the stack that stays the same from -trace to trace. +The RCU, RCU-sched, and RCU-bh implementations have CPU stall +warning. SRCU does not have its own CPU stall warnings, but its +calls to synchronize_sched() will result in RCU-sched detecting +RCU-sched-related CPU stalls. Please note that RCU only detects +CPU stalls when there is a grace period in progress. No grace period, +no CPU stall warnings. + +To diagnose the cause of the stall, inspect the stack traces. +The offending function will usually be near the top of the stack. +If you have a series of stall warnings from a single extended stall, +comparing the stack traces can often help determine where the stall +is occurring, which will usually be in the function nearest the top of +that portion of the stack which remains the same from trace to trace. +If you can reliably trigger the stall, ftrace can be quite helpful. RCU bugs can often be debugged with the help of CONFIG_RCU_TRACE. -- cgit v1.2.3-70-g09d2 From 624f6ec871886525ca19cf7841f918da91d4315e Mon Sep 17 00:00:00 2001 From: "Rafael J. Wysocki" Date: Fri, 26 Mar 2010 23:53:42 +0100 Subject: PM: Update device power management document The device PM document, Documentation/power/devices.txt, is badly outdated and requires total rework to fit the current design of the PM framework. Make it more up to date. Signed-off-by: Rafael J. Wysocki Reviewed-by: Randy Dunlap --- Documentation/power/devices.txt | 698 +++++++++++++++++++++++++--------------- 1 file changed, 431 insertions(+), 267 deletions(-) (limited to 'Documentation') diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt index c9abbd86bc1..10018d19e0b 100644 --- a/Documentation/power/devices.txt +++ b/Documentation/power/devices.txt @@ -1,3 +1,7 @@ +Device Power Management + +(C) 2010 Rafael J. Wysocki , Novell Inc. + Most of the code in Linux is device drivers, so most of the Linux power management code is also driver-specific. Most drivers will do very little; others, especially for platforms with small batteries (like cell phones), @@ -25,31 +29,39 @@ states: them without loss of data. Some drivers can manage hardware wakeup events, which make the system - leave that low-power state. This feature may be disabled using the - relevant /sys/devices/.../power/wakeup file; enabling it may cost some - power usage, but let the whole system enter low power states more often. + leave that low-power state. This feature may be enabled or disabled + using the relevant /sys/devices/.../power/wakeup file (for Ethernet + drivers the ioctl interface used by ethtool may also be used for this + purpose); enabling it may cost some power usage, but let the whole + system enter low power states more often. Runtime Power Management model: - Drivers may also enter low power states while the system is running, - independently of other power management activity. Upstream drivers - will normally not know (or care) if the device is in some low power - state when issuing requests; the driver will auto-resume anything - that's needed when it gets a request. - - This doesn't have, or need much infrastructure; it's just something you - should do when writing your drivers. For example, clk_disable() unused - clocks as part of minimizing power drain for currently-unused hardware. - Of course, sometimes clusters of drivers will collaborate with each - other, which could involve task-specific power management. + Devices may also be put into low power states while the system is + running, independently of other power management activity in principle. + However, devices are not generally independent of each other (for + example, parent device cannot be suspended unless all of its child + devices have been suspended). Moreover, depending on the bus type the + device is on, it may be necessary to carry out some bus-specific + operations on the device for this purpose. Also, devices put into low + power states at run time may require special handling during system-wide + power transitions, like suspend to RAM. + + For these reasons not only the device driver itself, but also the + appropriate subsystem (bus type, device type or device class) driver + and the PM core are involved in the runtime power management of devices. + Like in the system sleep power management case, they need to collaborate + by implementing various role-specific suspend and resume methods, so + that the hardware is cleanly powered down and reactivated without data + or service loss. There's not a lot to be said about those low power states except that they are very system-specific, and often device-specific. Also, that if enough -drivers put themselves into low power states (at "runtime"), the effect may be -the same as entering some system-wide low-power state (system sleep) ... and -that synergies exist, so that several drivers using runtime pm might put the +devices have been put into low power states (at "run time"), the effect may be +very similar to entering some system-wide low-power state (system sleep) ... and +that synergies exist, so that several drivers using runtime PM might put the system into a state where even deeper power saving options are available. -Most suspended devices will have quiesced all I/O: no more DMA or irqs, no +Most suspended devices will have quiesced all I/O: no more DMA or IRQs, no more data read or written, and requests from upstream drivers are no longer accepted. A given bus or platform may have different requirements though. @@ -60,34 +72,67 @@ or removal (for PCMCIA, MMC/SD, USB, and so on). Interfaces for Entering System Sleep States =========================================== -Most of the programming interfaces a device driver needs to know about -relate to that first model: entering a system-wide low power state, -rather than just minimizing power consumption by one device. +There are programming interfaces provided for subsystem (bus type, device type, +device class) and device drivers in order to allow them to participate in the +power management of devices they are concerned with. They cover the system +sleep power management as well as the runtime power management of devices. + + +Device Power Management Operations +---------------------------------- +Device power management operations, at the subsystem level as well as at the +device driver level, are implemented by defining and populating objects of type +struct dev_pm_ops: + +struct dev_pm_ops { + int (*prepare)(struct device *dev); + void (*complete)(struct device *dev); + int (*suspend)(struct device *dev); + int (*resume)(struct device *dev); + int (*freeze)(struct device *dev); + int (*thaw)(struct device *dev); + int (*poweroff)(struct device *dev); + int (*restore)(struct device *dev); + int (*suspend_noirq)(struct device *dev); + int (*resume_noirq)(struct device *dev); + int (*freeze_noirq)(struct device *dev); + int (*thaw_noirq)(struct device *dev); + int (*poweroff_noirq)(struct device *dev); + int (*restore_noirq)(struct device *dev); + int (*runtime_suspend)(struct device *dev); + int (*runtime_resume)(struct device *dev); + int (*runtime_idle)(struct device *dev); +}; +This structure is defined in include/linux/pm.h and the methods included in it +are also described in that file. Their roles will be explained in what follows. +For now, it should be sufficient to remember that the last three of them are +specific to runtime power management, while the remaining ones are used during +system-wide power transitions. -Bus Driver Methods ------------------- -The core methods to suspend and resume devices reside in struct bus_type. -These are mostly of interest to people writing infrastructure for busses -like PCI or USB, or because they define the primitives that device drivers -may need to apply in domain-specific ways to their devices: - -struct bus_type { - ... - int (*suspend)(struct device *dev, pm_message_t state); - int (*resume)(struct device *dev); -}; +There also is an "old" or "legacy", deprecated way of implementing power +management operations available at least for some subsystems. This approach +does not use struct dev_pm_ops objects and it only is suitable for implementing +system sleep power management methods. Therefore it is not described in this +document, so please refer directly to the source code for more information about +it. + + +Subsystem-Level Methods +----------------------- +The core methods to suspend and resume devices reside in struct dev_pm_ops +pointed to by the pm member of struct bus_type, struct device_type and +struct class. They are mostly of interest to the people writing infrastructure +for buses, like PCI or USB, or device type and device class drivers. -Bus drivers implement those methods as appropriate for the hardware and +Bus drivers implement these methods as appropriate for the hardware and the drivers using it; PCI works differently from USB, and so on. Not many -people write bus drivers; most driver code is a "device driver" that +people write subsystem-level drivers; most driver code is a "device driver" that builds on top of bus-specific framework code. For more information on these driver calls, see the description later; they are called in phases for every device, respecting the parent-child -sequencing in the driver model tree. Note that as this is being written, -only the suspend() and resume() are widely available; not many bus drivers -leverage all of those phases, or pass them down to lower driver levels. +sequencing in the driver model tree. /sys/devices/.../power/wakeup files @@ -95,7 +140,7 @@ leverage all of those phases, or pass them down to lower driver levels. All devices in the driver model have two flags to control handling of wakeup events, which are hardware signals that can force the device and/or system out of a low power state. These are initialized by bus or device -driver code using device_init_wakeup(dev,can_wakeup). +driver code using device_init_wakeup(). The "can_wakeup" flag just records whether the device (and its driver) can physically support wakeup events. When that flag is clear, the sysfs @@ -103,64 +148,44 @@ physically support wakeup events. When that flag is clear, the sysfs For devices that can issue wakeup events, a separate flag controls whether that device should try to use its wakeup mechanism. The initial value of -device_may_wakeup() will be true, so that the device's "wakeup" file holds -the value "enabled". Userspace can change that to "disabled" so that -device_may_wakeup() returns false; or change it back to "enabled" (so that -it returns true again). - - -EXAMPLE: PCI Device Driver Methods ------------------------------------ -PCI framework software calls these methods when the PCI device driver bound -to a device device has provided them: - -struct pci_driver { - ... - int (*suspend)(struct pci_device *pdev, pm_message_t state); - int (*suspend_late)(struct pci_device *pdev, pm_message_t state); - - int (*resume_early)(struct pci_device *pdev); - int (*resume)(struct pci_device *pdev); -}; - -Drivers will implement those methods, and call PCI-specific procedures -like pci_set_power_state(), pci_enable_wake(), pci_save_state(), and -pci_restore_state() to manage PCI-specific mechanisms. (PCI config space -could be saved during driver probe, if it weren't for the fact that some -systems rely on userspace tweaking using setpci.) Devices are suspended -before their bridges enter low power states, and likewise bridges resume -before their devices. - - -Upper Layers of Driver Stacks ------------------------------ -Device drivers generally have at least two interfaces, and the methods -sketched above are the ones which apply to the lower level (nearer PCI, USB, -or other bus hardware). The network and block layers are examples of upper -level interfaces, as is a character device talking to userspace. - -Power management requests normally need to flow through those upper levels, -which often use domain-oriented requests like "blank that screen". In -some cases those upper levels will have power management intelligence that -relates to end-user activity, or other devices that work in cooperation. - -When those interfaces are structured using class interfaces, there is a -standard way to have the upper layer stop issuing requests to a given -class device (and restart later): - -struct class { - ... - int (*suspend)(struct device *dev, pm_message_t state); - int (*resume)(struct device *dev); -}; - -Those calls are issued in specific phases of the process by which the -system enters a low power "suspend" state, or resumes from it. +device_may_wakeup() will be false for the majority of devices, except for +power buttons, keyboards, and Ethernet adapters whose WoL (wake-on-LAN) feature +has been set up with ethtool. Thus in the majority of cases the device's +"wakeup" file will initially hold the value "disabled". Userspace can change +that to "enabled", so that device_may_wakeup() returns true, or change it back +to "disabled", so that it returns false again. + + +/sys/devices/.../power/control files +------------------------------------ +All devices in the driver model have a flag to control the desired behavior of +its driver with respect to runtime power management. This flag, called +runtime_auto, is initialized by the bus type (or generally subsystem) code using +pm_runtime_allow() or pm_runtime_forbid(), depending on whether or not the +driver is supposed to power manage the device at run time by default, +respectively. + +This setting may be adjusted by user space by writing either "on" or "auto" to +the device's "control" file. If "auto" is written, the device's runtime_auto +flag will be set and the driver will be allowed to power manage the device if +capable of doing that. If "on" is written, the driver is not allowed to power +manage the device which in turn is supposed to remain in the full power state at +run time. User space can check the current value of the runtime_auto flag by +reading from the device's "control" file. + +The device's runtime_auto flag has no effect on the handling of system-wide +power transitions by its driver. In particular, the device can (and in the +majority of cases should and will) be put into a low power state during a +system-wide transition to a sleep state (like "suspend-to-RAM") even though its +runtime_auto flag is unset (in which case its "control" file contains "on"). + +For more information about the runtime power management framework for devices +refer to Documentation/power/runtime_pm.txt. Calling Drivers to Enter System Sleep States ============================================ -When the system enters a low power state, each device's driver is asked +When the system goes into a sleep state, each device's driver is asked to suspend the device by putting it into state compatible with the target system state. That's usually some version of "off", but the details are system-specific. Also, wakeup-enabled devices will usually stay partly @@ -175,14 +200,13 @@ and then turn its hardware as "off" as possible with late_suspend. The matching resume calls would then completely reinitialize the hardware before reactivating its class I/O queues. -More power-aware drivers drivers will use more than one device low power -state, either at runtime or during system sleep states, and might trigger -system wakeup events. +More power-aware drivers might prepare the devices for triggering system wakeup +events. Call Sequence Guarantees ------------------------ -To ensure that bridges and similar links needed to talk to a device are +To ensure that bridges and similar links needing to talk to a device are available when the device is suspended or resumed, the device tree is walked in a bottom-up order to suspend devices. A top-down order is used to resume those devices. @@ -194,7 +218,7 @@ its parent; and can't be removed or suspended after that parent. The policy is that the device tree should match hardware bus topology. (Or at least the control bus, for devices which use multiple busses.) In particular, this means that a device registration may fail if the parent of -the device is suspending (ie. has been chosen by the PM core as the next +the device is suspending (i.e. has been chosen by the PM core as the next device to suspend) or has already suspended, as well as after all of the other devices have been suspended. Device drivers must be prepared to cope with such situations. @@ -207,54 +231,166 @@ system always includes every phase, executing calls for every device before the next phase begins. Not all busses or classes support all these callbacks; and not all drivers use all the callbacks. -The phases are seen by driver notifications issued in this order: +Generally, different callbacks are used depending on whether the system is +going to the standby or memory sleep state ("suspend-to-RAM") or it is going to +be hibernated ("suspend-to-disk"). + +If the system goes to the standby or memory sleep state the phases are seen by +driver notifications issued in this order: + + 1 bus->pm.prepare(dev) is called after tasks are frozen and it is supposed + to call the device driver's ->pm.prepare() method. + + The purpose of this method is mainly to prevent new children of the + device from being registered after it has returned. It also may be used + to generally prepare the device for the upcoming system transition, but + it should not put the device into a low power state. - 1 class.suspend(dev, message) is called after tasks are frozen, for - devices associated with a class that has such a method. This - method may sleep. + 2 class->pm.suspend(dev) is called if dev is associated with a class that + has such a method. It may invoke the device driver's ->pm.suspend() + method, unless type->pm.suspend(dev) or bus->pm.suspend() does that. - Since I/O activity usually comes from such higher layers, this is - a good place to quiesce all drivers of a given type (and keep such - code out of those drivers). + 3 type->pm.suspend(dev) is called if dev is associated with a device type + that has such a method. It may invoke the device driver's + ->pm.suspend() method, unless class->pm.suspend(dev) or + bus->pm.suspend() does that. - 2 bus.suspend(dev, message) is called next. This method may sleep, - and is often morphed into a device driver call with bus-specific - parameters and/or rules. + 4 bus->pm.suspend(dev) is called, if implemented. It usually calls the + device driver's ->pm.suspend() method. - This call should handle parts of device suspend logic that require - sleeping. It probably does work to quiesce the device which hasn't - been abstracted into class.suspend(). + This call should generally quiesce the device so that it doesn't do any + I/O after the call has returned. It also may save the device registers + and put it into the appropriate low power state, depending on the bus + type the device is on. -The pm_message_t parameter is currently used to refine those semantics -(described later). + 5 bus->pm.suspend_noirq(dev) is called, if implemented. It may call the + device driver's ->pm.suspend_noirq() method, depending on the bus type + in question. + + This method is invoked after device interrupts have been suspended, + which means that the driver's interrupt handler will not be called + while it is running. It should save the values of the device's + registers that weren't saved previously and finally put the device into + the appropriate low power state. + + The majority of subsystems and device drivers need not implement this + method. However, bus types allowing devices to share interrupt vectors, + like PCI, generally need to use it to prevent interrupt handling issues + from happening during suspend. At the end of those phases, drivers should normally have stopped all I/O transactions (DMA, IRQs), saved enough state that they can re-initialize or restore previous state (as needed by the hardware), and placed the device into a low-power state. On many platforms they will also use -clk_disable() to gate off one or more clock sources; sometimes they will -also switch off power supplies, or reduce voltages. Drivers which have -runtime PM support may already have performed some or all of the steps -needed to prepare for the upcoming system sleep state. +gate off one or more clock sources; sometimes they will also switch off power +supplies, or reduce voltages. [Drivers supporting runtime PM may already have +performed some or all of the steps needed to prepare for the upcoming system +state transition.] + +If device_may_wakeup(dev) returns true, the device should be prepared for +generating hardware wakeup signals when the system is in the sleep state to +trigger a system wakeup event. For example, enable_irq_wake() might identify +GPIO signals hooked up to a switch or other external hardware, and +pci_enable_wake() does something similar for the PCI PME signal. + +If a driver (or subsystem) fails it suspend method, the system won't enter the +desired low power state; it will resume all the devices it's suspended so far. + + +Hibernation Phases +------------------ +Hibernating the system is more complicated than putting it into the standby or +memory sleep state, because it involves creating a system image and saving it. +Therefore there are more phases of hibernation and special device PM methods are +used in this case. + +First, it is necessary to prepare the system for creating a hibernation image. +This is similar to putting the system into the standby or memory sleep state, +although it generally doesn't require that devices be put into low power states +(that is even not desirable at this point). Driver notifications are then +issued in the following order: + + 1 bus->pm.prepare(dev) is called after tasks have been frozen and enough + memory has been freed. + + 2 class->pm.freeze(dev) is called if implemented. It may invoke the + device driver's ->pm.freeze() method, unless type->pm.freeze(dev) or + bus->pm.freeze() does that. + + 3 type->pm.freeze(dev) is called if implemented. It may invoke the device + driver's ->pm.suspend() method, unless class->pm.freeze(dev) or + bus->pm.freeze() does that. -When any driver sees that its device_can_wakeup(dev), it should make sure -to use the relevant hardware signals to trigger a system wakeup event. -For example, enable_irq_wake() might identify GPIO signals hooked up to -a switch or other external hardware, and pci_enable_wake() does something -similar for PCI's PME# signal. + 4 bus->pm.freeze(dev) is called, if implemented. It usually calls the + device driver's ->pm.freeze() method. -If a driver (or bus, or class) fails it suspend method, the system won't -enter the desired low power state; it will resume all the devices it's -suspended so far. + 5 bus->pm.freeze_noirq(dev) is called, if implemented. It may call the + device driver's ->pm.freeze_noirq() method, depending on the bus type + in question. -Note that drivers may need to perform different actions based on the target -system lowpower/sleep state. At this writing, there are only platform -specific APIs through which drivers could determine those target states. +The difference between ->pm.freeze() and the corresponding ->pm.suspend() (and +similarly for the "noirq" variants) is that the former should avoid preparing +devices to trigger system wakeup events and putting devices into low power +states, although they generally have to save the values of device registers +so that it's possible to restore them during system resume. + +Second, after the system image has been created, the functionality of devices +has to be restored so that the image can be saved. That is similar to resuming +devices after the system has been woken up from the standby or memory sleep +state, which is described below, and causes the following device notifications +to be issued: + + 1 bus->pm.thaw_noirq(dev), if implemented; may call the device driver's + ->pm.thaw_noirq() method, depending on the bus type in question. + + 2 bus->pm.thaw(dev), if implemented; usually calls the device driver's + ->pm.thaw() method. + + 3 type->pm.thaw(dev), if implemented; may call the device driver's + ->pm.thaw() method if not called by the bus type or class. + + 4 class->pm.thaw(dev), if implemented; may call the device driver's + ->pm.thaw() method if not called by the bus type or device type. + + 5 bus->pm.complete(dev), if implemented; may call the device driver's + ->pm.complete() method. + +Generally, the role of the ->pm.thaw() methods (including the "noirq" variants) +is to bring the device back to the fully functional state, so that it may be +used for saving the image, if necessary. The role of bus->pm.complete() is to +reverse whatever bus->pm.prepare() did (likewise for the analogous device driver +callbacks). + +After the image has been saved, the devices need to be prepared for putting the +system into the low power state. That is analogous to suspending them before +putting the system into the standby or memory sleep state and involves the +following device notifications: + + 1 bus->pm.prepare(dev). + + 2 class->pm.poweroff(dev), if implemented; may invoke the device driver's + ->pm.poweroff() method if not called by the bus type or device type. + + 3 type->pm.poweroff(dev), if implemented; may invoke the device driver's + ->pm.poweroff() method if not called by the bus type or device class. + + 4 bus->pm.poweroff(dev), if implemented; usually calls the device driver's + ->pm.poweroff() method (if not called by the device class or type). + + 5 bus->pm.poweroff_noirq(dev), if implemented; may call the device + driver's ->pm.poweroff_noirq() method, depending on the bus type + in question. + +The difference between ->pm.poweroff() and the corresponding ->pm.suspend() (and +analogously for the "noirq" variants) is that the former need not save the +device's registers. Still, they should prepare the device for triggering +system wakeup events if necessary and finally put it into the appropriate low +power state. Device Low Power (suspend) States --------------------------------- -Device low-power states aren't very standard. One device might only handle +Device low-power states aren't standard. One device might only handle "on" and "off, while another might support a dozen different versions of "on" (how many engines are active?), plus a state that gets back to "on" faster than from a full "off". @@ -265,7 +401,7 @@ PCI device may not perform DMA or issue IRQs, and any wakeup events it issues would be issued through the PME# bus signal. Plus, there are several PCI-standard device states, some of which are optional. -In contrast, integrated system-on-chip processors often use irqs as the +In contrast, integrated system-on-chip processors often use IRQs as the wakeup event sources (so drivers would call enable_irq_wake) and might be able to treat DMA completion as a wakeup event (sometimes DMA can stay active too, it'd only be the CPU and some peripherals that sleep). @@ -284,84 +420,86 @@ ways; the aforementioned LCD might be active in one product's "standby", but a different product using the same SOC might work differently. -Meaning of pm_message_t.event ------------------------------ -Parameters to suspend calls include the device affected and a message of -type pm_message_t, which has one field: the event. If driver does not -recognize the event code, suspend calls may abort the request and return -a negative errno. However, most drivers will be fine if they implement -PM_EVENT_SUSPEND semantics for all messages. +Resuming Devices +---------------- +Resuming is done in multiple phases, much like suspending, with all +devices processing each phase's calls before the next phase begins. -The event codes are used to refine the goal of suspending the device, and -mostly matter when creating or resuming system memory image snapshots, as -used with suspend-to-disk: +Again, however, different callbacks are used depending on whether the system is +waking up from the standby or memory sleep state ("suspend-to-RAM") or from +hibernation ("suspend-to-disk"). - PM_EVENT_SUSPEND -- quiesce the driver and put hardware into a low-power - state. When used with system sleep states like "suspend-to-RAM" or - "standby", the upcoming resume() call will often be able to rely on - state kept in hardware, or issue system wakeup events. +If the system is waking up from the standby or memory sleep state, the phases +are seen by driver notifications issued in this order: - PM_EVENT_HIBERNATE -- Put hardware into a low-power state and enable wakeup - events as appropriate. It is only used with hibernation - (suspend-to-disk) and few devices are able to wake up the system from - this state; most are completely powered off. + 1 bus->pm.resume_noirq(dev) is called, if implemented. It may call the + device driver's ->pm.resume_noirq() method, depending on the bus type in + question. - PM_EVENT_FREEZE -- quiesce the driver, but don't necessarily change into - any low power mode. A system snapshot is about to be taken, often - followed by a call to the driver's resume() method. Neither wakeup - events nor DMA are allowed. + The role of this method is to perform actions that need to be performed + before device drivers' interrupt handlers are allowed to be invoked. If + the given bus type permits devices to share interrupt vectors, like PCI, + this method should bring the device and its driver into a state in which + the driver can recognize if the device is the source of incoming + interrupts, if any, and handle them correctly. - PM_EVENT_PRETHAW -- quiesce the driver, knowing that the upcoming resume() - will restore a suspend-to-disk snapshot from a different kernel image. - Drivers that are smart enough to look at their hardware state during - resume() processing need that state to be correct ... a PRETHAW could - be used to invalidate that state (by resetting the device), like a - shutdown() invocation would before a kexec() or system halt. Other - drivers might handle this the same way as PM_EVENT_FREEZE. Neither - wakeup events nor DMA are allowed. + For example, the PCI bus type's ->pm.resume_noirq() puts the device into + the full power state (D0 in the PCI terminology) and restores the + standard configuration registers of the device. Then, it calls the + device driver's ->pm.resume_noirq() method to perform device-specific + actions needed at this stage of resume. -To enter "standby" (ACPI S1) or "Suspend to RAM" (STR, ACPI S3) states, or -the similarly named APM states, only PM_EVENT_SUSPEND is used; the other event -codes are used for hibernation ("Suspend to Disk", STD, ACPI S4). + 2 bus->pm.resume(dev) is called, if implemented. It usually calls the + device driver's ->pm.resume() method. -There's also PM_EVENT_ON, a value which never appears as a suspend event -but is sometimes used to record the "not suspended" device state. + This call should generally bring the the device back to the working + state, so that it can do I/O as requested after the call has returned. + However, it may be more convenient to use the device class or device + type ->pm.resume() for this purpose, in which case the bus type's + ->pm.resume() method need not be implemented at all. + 3 type->pm.resume(dev) is called, if implemented. It may invoke the + device driver's ->pm.resume() method, unless class->pm.resume(dev) or + bus->pm.resume() does that. -Resuming Devices ----------------- -Resuming is done in multiple phases, much like suspending, with all -devices processing each phase's calls before the next phase begins. + For devices that are not associated with any bus type or device class + this method plays the role of bus->pm.resume(). -The phases are seen by driver notifications issued in this order: + 4 class->pm.resume(dev) is called, if implemented. It may invoke the + device driver's ->pm.resume() method, unless bus->pm.resume(dev) or + type->pm.resume() does that. - 1 bus.resume(dev) reverses the effects of bus.suspend(). This may - be morphed into a device driver call with bus-specific parameters; - implementations may sleep. + For devices that are not associated with any bus type or device type + this method plays the role of bus->pm.resume(). - 2 class.resume(dev) is called for devices associated with a class - that has such a method. Implementations may sleep. + 5 bus->pm.complete(dev) is called, if implemented. It is supposed to + invoke the device driver's ->pm.complete() method. - This reverses the effects of class.suspend(), and would usually - reactivate the device's I/O queue. + The role of this method is to reverse whatever bus->pm.prepare(dev) + (or the driver's ->pm.prepare()) did during suspend, if necessary. At the end of those phases, drivers should normally be as functional as they were before suspending: I/O can be performed using DMA and IRQs, and -the relevant clocks are gated on. The device need not be "fully on"; it -might be in a runtime lowpower/suspend state that acts as if it were. +the relevant clocks are gated on. In principle the device need not be +"fully on"; it might be in a runtime lowpower/suspend state during suspend and +the resume callbacks may try to restore that state, but that need not be +desirable from the user's point of view. In fact, there are multiple reasons +why it's better to always put devices into the "fully working" state in the +system sleep resume callbacks and they are discussed in more detail in +Documentation/power/runtime_pm.txt. However, the details here may again be platform-specific. For example, some systems support multiple "run" states, and the mode in effect at -the end of resume() might not be the one which preceded suspension. +the end of resume might not be the one which preceded suspension. That means availability of certain clocks or power supplies changed, which could easily affect how a driver works. - Drivers need to be able to handle hardware which has been reset since the suspend methods were called, for example by complete reinitialization. This may be the hardest part, and the one most protected by NDA'd documents and chip errata. It's simplest if the hardware state hasn't changed since -the suspend() was called, but that can't always be guaranteed. +the suspend was carried out, but that can't be guaranteed (in fact, it ususally +is not the case). Drivers must also be prepared to notice that the device has been removed while the system was powered off, whenever that's physically possible. @@ -371,11 +509,76 @@ will notice and handle such removals are currently bus-specific, and often involve a separate thread. -Note that the bus-specific runtime PM wakeup mechanism can exist, and might -be defined to share some of the same driver code as for system wakeup. For -example, a bus-specific device driver's resume() method might be used there, -so it wouldn't only be called from bus.resume() during system-wide wakeup. -See bus-specific information about how runtime wakeup events are handled. +Resume From Hibernation +----------------------- +Resuming from hibernation is, again, more complicated than resuming from a sleep +state in which the contents of main memory are preserved, because it requires +a system image to be loaded into memory and the pre-hibernation memory contents +to be restored before control can be passed back to the image kernel. + +In principle, the image might be loaded into memory and the pre-hibernation +memory contents might be restored by the boot loader. For this purpose, +however, the boot loader would need to know the image kernel's entry point and +there's no protocol defined for passing that information to boot loaders. As +a workaround, the boot loader loads a fresh instance of the kernel, called the +boot kernel, into memory and passes control to it in a usual way. Then, the +boot kernel reads the hibernation image, restores the pre-hibernation memory +contents and passes control to the image kernel. Thus, in fact, two different +kernels are involved in resuming from hibernation and in general they are not +only different because they play different roles in this operation. Actually, +the boot kernel may be completely different from the image kernel. Not only +the configuration of it, but also the version of it may be different. +The consequences of this are important to device drivers and their subsystems +(bus types, device classes and device types) too. + +Namely, to be able to load the hibernation image into memory, the boot kernel +needs to include at least the subset of device drivers allowing it to access the +storage medium containing the image, although it generally doesn't need to +include all of the drivers included into the image kernel. After the image has +been loaded the devices handled by those drivers need to be prepared for passing +control back to the image kernel. This is very similar to the preparation of +devices for creating a hibernation image described above. In fact, it is done +in the same way, with the help of the ->pm.prepare(), ->pm.freeze() and +->pm.freeze_noirq() callbacks, but only for device drivers included in the boot +kernel (whose versions may generally be different from the versions of the +analogous drivers from the image kernel). + +Should the restoration of the pre-hibernation memory contents fail, the boot +kernel would carry out the procedure of "thawing" devices described above, using +the ->pm.thaw_noirq(), ->pm.thaw(), and ->pm.complete() callbacks provided by +subsystems and device drivers. This, however, is a very rare condition. Most +often the pre-hibernation memory contents are restored successfully and control +is passed to the image kernel that is now responsible for bringing the system +back to the working state. + +To achieve this goal, among other things, the image kernel restores the +pre-hibernation functionality of devices. This operation is analogous to the +resuming of devices after waking up from the memory sleep state, although it +involves different device notifications which are the following: + + 1 bus->pm.restore_noirq(dev), if implemented; may call the device driver's + ->pm.restore_noirq() method, depending on the bus type in question. + + 2 bus->pm.restore(dev), if implemented; usually calls the device driver's + ->pm.restore() method. + + 3 type->pm.restore(dev), if implemented; may call the device driver's + ->pm.restore() method if not called by the bus type or class. + + 4 class->pm.restore(dev), if implemented; may call the device driver's + ->pm.restore() method if not called by the bus type or device type. + + 5 bus->pm.complete(dev), if implemented; may call the device driver's + ->pm.complete() method. + +The roles of the ->pm.restore_noirq() and ->pm.restore() callbacks are analogous +to the roles of the corresponding resume callbacks, but they must assume that +the device may have been accessed before by the boot kernel. Consequently, the +state of the device before they are called may be different from the state of it +right prior to calling the resume callbacks. That difference usually doesn't +matter, so the majority of device drivers can set their resume and restore +callback pointers to the same routine. Nevertheless, different callback +pointers are used in case there is a situation where it actually matters. System Devices @@ -389,10 +592,13 @@ System devices will only be suspended with interrupts disabled, and after all other devices have been suspended. On resume, they will be resumed before any other devices, and also with interrupts disabled. -That is, IRQs are disabled, the suspend_late() phase begins, then the -sysdev_driver.suspend() phase, and the system enters a sleep state. Then -the sysdev_driver.resume() phase begins, followed by the resume_early() -phase, after which IRQs are enabled. +That is, when the non-boot CPUs are all offline and IRQs are disabled on the +remaining online CPU, then the sysdev_driver.suspend() phase is carried out, and +the system enters a sleep state (or hibernation image is created). During +resume (or after the image has been created) the sysdev_driver.resume() phase +is carried out, IRQs are enabled on the only online CPU, the non-boot CPUs are +enabled and that is followed by the "early resume" phase (in which the "noirq" +callbacks provided by subsystems and device drivers are invoked). Code to actually enter and exit the system-wide low power state sometimes involves hardware details that are only known to the boot firmware, and @@ -400,6 +606,22 @@ may leave a CPU running software (from SRAM or flash memory) that monitors the system and manages its wakeup sequence. +Power Management Notifiers +-------------------------- +As stated in Documentation/power/notifiers.txt, there are some operations that +cannot be carried out by the power management callbacks discussed above, because +carrying them out at these points would be too late or too early. To handle +these cases subsystems and device drivers may register power management +notifiers that are called before tasks are frozen and after they have been +thawed. + +Generally speaking, the PM notifiers are suitable for performing actions that +either require user space to be available, or at least won't interfere with user +space in a wrong way. + +For details refer to Documentation/power/notifiers.txt. + + Runtime Power Management ======================== Many devices are able to dynamically power down while the system is still @@ -410,79 +632,21 @@ as "off", "sleep", "idle", "active", and so on. Those states will in some cases (like PCI) be partially constrained by a bus the device uses, and will usually include hardware states that are also used in system sleep states. -However, note that if a driver puts a device into a runtime low power state -and the system then goes into a system-wide sleep state, it normally ought -to resume into that runtime low power state rather than "full on". Such -distinctions would be part of the driver-internal state machine for that -hardware; the whole point of runtime power management is to be sure that -drivers are decoupled in that way from the state machine governing phases -of the system-wide power/sleep state transitions. - - -Power Saving Techniques ------------------------ -Normally runtime power management is handled by the drivers without specific -userspace or kernel intervention, by device-aware use of techniques like: - - Using information provided by other system layers - - stay deeply "off" except between open() and close() - - if transceiver/PHY indicates "nobody connected", stay "off" - - application protocols may include power commands or hints - - Using fewer CPU cycles - - using DMA instead of PIO - - removing timers, or making them lower frequency - - shortening "hot" code paths - - eliminating cache misses - - (sometimes) offloading work to device firmware - - Reducing other resource costs - - gating off unused clocks in software (or hardware) - - switching off unused power supplies - - eliminating (or delaying/merging) IRQs - - tuning DMA to use word and/or burst modes - - Using device-specific low power states - - using lower voltages - - avoiding needless DMA transfers - -Read your hardware documentation carefully to see the opportunities that -may be available. If you can, measure the actual power usage and check -it against the budget established for your project. - - -Examples: USB hosts, system timer, system CPU ----------------------------------------------- -USB host controllers make interesting, if complex, examples. In many cases -these have no work to do: no USB devices are connected, or all of them are -in the USB "suspend" state. Linux host controller drivers can then disable -periodic DMA transfers that would otherwise be a constant power drain on the -memory subsystem, and enter a suspend state. In power-aware controllers, -entering that suspend state may disable the clock used with USB signaling, -saving a certain amount of power. - -The controller will be woken from that state (with an IRQ) by changes to the -signal state on the data lines of a given port, for example by an existing -peripheral requesting "remote wakeup" or by plugging a new peripheral. The -same wakeup mechanism usually works from "standby" sleep states, and on some -systems also from "suspend to RAM" (or even "suspend to disk") states. -(Except that ACPI may be involved instead of normal IRQs, on some hardware.) - -System devices like timers and CPUs may have special roles in the platform -power management scheme. For example, system timers using a "dynamic tick" -approach don't just save CPU cycles (by eliminating needless timer IRQs), -but they may also open the door to using lower power CPU "idle" states that -cost more than a jiffie to enter and exit. On x86 systems these are states -like "C3"; note that periodic DMA transfers from a USB host controller will -also prevent entry to a C3 state, much like a periodic timer IRQ. - -That kind of runtime mechanism interaction is common. "System On Chip" (SOC) -processors often have low power idle modes that can't be entered unless -certain medium-speed clocks (often 12 or 48 MHz) are gated off. When the -drivers gate those clocks effectively, then the system idle task may be able -to use the lower power idle modes and thereby increase battery life. - -If the CPU can have a "cpufreq" driver, there also may be opportunities -to shift to lower voltage settings and reduce the power cost of executing -a given number of instructions. (Without voltage adjustment, it's rare -for cpufreq to save much power; the cost-per-instruction must go down.) +Note, however, that a system-wide power transition can be started while some +devices are in low power states due to the runtime power management. The system +sleep PM callbacks should generally recognize such situations and react to them +appropriately, but the recommended actions to be taken in that cases are +subsystem-specific. + +In some cases the decision may be made at the subsystem level while in some +other cases the device driver may be left to decide. In some cases it may be +desirable to leave a suspended device in that state during system-wide power +transition, but in some other cases the device ought to be put back into the +full power state, for example to be configured for system wakeup or so that its +system wakeup capability can be disabled. That all depends on the hardware +and the design of the subsystem and device driver in question. + +During system-wide resume from a sleep state it's better to put devices into +the full power state, as explained in Documentation/power/runtime_pm.txt. Refer +to that document for more information regarding this particular issue as well as +for information on the device runtime power management framework in general. -- cgit v1.2.3-70-g09d2 From d6f9cda1fd241bc7a1d896da94950fd972eca9b7 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Fri, 26 Mar 2010 23:53:55 +0100 Subject: PM: Improve device power management document Improve the device power management document after it's been updated by the previous patch. Signed-off-by: Alan Stern Signed-off-by: Rafael J. Wysocki --- Documentation/power/devices.txt | 811 +++++++++++++++++++--------------------- 1 file changed, 383 insertions(+), 428 deletions(-) (limited to 'Documentation') diff --git a/Documentation/power/devices.txt b/Documentation/power/devices.txt index 10018d19e0b..57080cd7457 100644 --- a/Documentation/power/devices.txt +++ b/Documentation/power/devices.txt @@ -1,11 +1,13 @@ Device Power Management -(C) 2010 Rafael J. Wysocki , Novell Inc. +Copyright (c) 2010 Rafael J. Wysocki , Novell Inc. +Copyright (c) 2010 Alan Stern + Most of the code in Linux is device drivers, so most of the Linux power -management code is also driver-specific. Most drivers will do very little; -others, especially for platforms with small batteries (like cell phones), -will do a lot. +management (PM) code is also driver-specific. Most drivers will do very +little; others, especially for platforms with small batteries (like cell +phones), will do a lot. This writeup gives an overview of how drivers interact with system-wide power management goals, emphasizing the models and interfaces that are @@ -19,9 +21,10 @@ Drivers will use one or both of these models to put devices into low-power states: System Sleep model: - Drivers can enter low power states as part of entering system-wide - low-power states like "suspend-to-ram", or (mostly for systems with - disks) "hibernate" (suspend-to-disk). + Drivers can enter low-power states as part of entering system-wide + low-power states like "suspend" (also known as "suspend-to-RAM"), or + (mostly for systems with disks) "hibernation" (also known as + "suspend-to-disk"). This is something that device, bus, and class drivers collaborate on by implementing various role-specific suspend and resume methods to @@ -29,41 +32,41 @@ states: them without loss of data. Some drivers can manage hardware wakeup events, which make the system - leave that low-power state. This feature may be enabled or disabled + leave the low-power state. This feature may be enabled or disabled using the relevant /sys/devices/.../power/wakeup file (for Ethernet drivers the ioctl interface used by ethtool may also be used for this purpose); enabling it may cost some power usage, but let the whole - system enter low power states more often. + system enter low-power states more often. Runtime Power Management model: - Devices may also be put into low power states while the system is + Devices may also be put into low-power states while the system is running, independently of other power management activity in principle. However, devices are not generally independent of each other (for - example, parent device cannot be suspended unless all of its child - devices have been suspended). Moreover, depending on the bus type the + example, a parent device cannot be suspended unless all of its child + devices have been suspended). Moreover, depending on the bus type the device is on, it may be necessary to carry out some bus-specific - operations on the device for this purpose. Also, devices put into low - power states at run time may require special handling during system-wide - power transitions, like suspend to RAM. + operations on the device for this purpose. Devices put into low power + states at run time may require special handling during system-wide power + transitions (suspend or hibernation). For these reasons not only the device driver itself, but also the - appropriate subsystem (bus type, device type or device class) driver - and the PM core are involved in the runtime power management of devices. - Like in the system sleep power management case, they need to collaborate - by implementing various role-specific suspend and resume methods, so - that the hardware is cleanly powered down and reactivated without data - or service loss. - -There's not a lot to be said about those low power states except that they -are very system-specific, and often device-specific. Also, that if enough -devices have been put into low power states (at "run time"), the effect may be -very similar to entering some system-wide low-power state (system sleep) ... and -that synergies exist, so that several drivers using runtime PM might put the -system into a state where even deeper power saving options are available. - -Most suspended devices will have quiesced all I/O: no more DMA or IRQs, no -more data read or written, and requests from upstream drivers are no longer -accepted. A given bus or platform may have different requirements though. + appropriate subsystem (bus type, device type or device class) driver and + the PM core are involved in runtime power management. As in the system + sleep power management case, they need to collaborate by implementing + various role-specific suspend and resume methods, so that the hardware + is cleanly powered down and reactivated without data or service loss. + +There's not a lot to be said about those low-power states except that they are +very system-specific, and often device-specific. Also, that if enough devices +have been put into low-power states (at runtime), the effect may be very similar +to entering some system-wide low-power state (system sleep) ... and that +synergies exist, so that several drivers using runtime PM might put the system +into a state where even deeper power saving options are available. + +Most suspended devices will have quiesced all I/O: no more DMA or IRQs (except +for wakeup events), no more data read or written, and requests from upstream +drivers are no longer accepted. A given bus or platform may have different +requirements though. Examples of hardware wakeup events include an alarm from a real time clock, network wake-on-LAN packets, keyboard or mouse activity, and media insertion @@ -72,10 +75,10 @@ or removal (for PCMCIA, MMC/SD, USB, and so on). Interfaces for Entering System Sleep States =========================================== -There are programming interfaces provided for subsystem (bus type, device type, -device class) and device drivers in order to allow them to participate in the -power management of devices they are concerned with. They cover the system -sleep power management as well as the runtime power management of devices. +There are programming interfaces provided for subsystems (bus type, device type, +device class) and device drivers to allow them to participate in the power +management of devices they are concerned with. These interfaces cover both +system sleep and runtime power management. Device Power Management Operations @@ -106,16 +109,15 @@ struct dev_pm_ops { This structure is defined in include/linux/pm.h and the methods included in it are also described in that file. Their roles will be explained in what follows. -For now, it should be sufficient to remember that the last three of them are -specific to runtime power management, while the remaining ones are used during +For now, it should be sufficient to remember that the last three methods are +specific to runtime power management while the remaining ones are used during system-wide power transitions. -There also is an "old" or "legacy", deprecated way of implementing power -management operations available at least for some subsystems. This approach -does not use struct dev_pm_ops objects and it only is suitable for implementing -system sleep power management methods. Therefore it is not described in this -document, so please refer directly to the source code for more information about -it. +There also is a deprecated "old" or "legacy" interface for power management +operations available at least for some subsystems. This approach does not use +struct dev_pm_ops objects and it is suitable only for implementing system sleep +power management methods. Therefore it is not described in this document, so +please refer directly to the source code for more information about it. Subsystem-Level Methods @@ -125,10 +127,10 @@ pointed to by the pm member of struct bus_type, struct device_type and struct class. They are mostly of interest to the people writing infrastructure for buses, like PCI or USB, or device type and device class drivers. -Bus drivers implement these methods as appropriate for the hardware and -the drivers using it; PCI works differently from USB, and so on. Not many -people write subsystem-level drivers; most driver code is a "device driver" that -builds on top of bus-specific framework code. +Bus drivers implement these methods as appropriate for the hardware and the +drivers using it; PCI works differently from USB, and so on. Not many people +write subsystem-level drivers; most driver code is a "device driver" that builds +on top of bus-specific framework code. For more information on these driver calls, see the description later; they are called in phases for every device, respecting the parent-child @@ -137,66 +139,78 @@ sequencing in the driver model tree. /sys/devices/.../power/wakeup files ----------------------------------- -All devices in the driver model have two flags to control handling of -wakeup events, which are hardware signals that can force the device and/or -system out of a low power state. These are initialized by bus or device -driver code using device_init_wakeup(). +All devices in the driver model have two flags to control handling of wakeup +events (hardware signals that can force the device and/or system out of a low +power state). These flags are initialized by bus or device driver code using +device_set_wakeup_capable() and device_set_wakeup_enable(), defined in +include/linux/pm_wakeup.h. The "can_wakeup" flag just records whether the device (and its driver) can -physically support wakeup events. When that flag is clear, the sysfs -"wakeup" file is empty, and device_may_wakeup() returns false. - -For devices that can issue wakeup events, a separate flag controls whether -that device should try to use its wakeup mechanism. The initial value of -device_may_wakeup() will be false for the majority of devices, except for -power buttons, keyboards, and Ethernet adapters whose WoL (wake-on-LAN) feature -has been set up with ethtool. Thus in the majority of cases the device's -"wakeup" file will initially hold the value "disabled". Userspace can change -that to "enabled", so that device_may_wakeup() returns true, or change it back -to "disabled", so that it returns false again. +physically support wakeup events. The device_set_wakeup_capable() routine +affects this flag. The "should_wakeup" flag controls whether the device should +try to use its wakeup mechanism. device_set_wakeup_enable() affects this flag; +for the most part drivers should not change its value. The initial value of +should_wakeup is supposed to be false for the majority of devices; the major +exceptions are power buttons, keyboards, and Ethernet adapters whose WoL +(wake-on-LAN) feature has been set up with ethtool. + +Whether or not a device is capable of issuing wakeup events is a hardware +matter, and the kernel is responsible for keeping track of it. By contrast, +whether or not a wakeup-capable device should issue wakeup events is a policy +decision, and it is managed by user space through a sysfs attribute: the +power/wakeup file. User space can write the strings "enabled" or "disabled" to +set or clear the should_wakeup flag, respectively. Reads from the file will +return the corresponding string if can_wakeup is true, but if can_wakeup is +false then reads will return an empty string, to indicate that the device +doesn't support wakeup events. (But even though the file appears empty, writes +will still affect the should_wakeup flag.) + +The device_may_wakeup() routine returns true only if both flags are set. +Drivers should check this routine when putting devices in a low-power state +during a system sleep transition, to see whether or not to enable the devices' +wakeup mechanisms. However for runtime power management, wakeup events should +be enabled whenever the device and driver both support them, regardless of the +should_wakeup flag. /sys/devices/.../power/control files ------------------------------------ -All devices in the driver model have a flag to control the desired behavior of -its driver with respect to runtime power management. This flag, called -runtime_auto, is initialized by the bus type (or generally subsystem) code using -pm_runtime_allow() or pm_runtime_forbid(), depending on whether or not the -driver is supposed to power manage the device at run time by default, -respectively. - -This setting may be adjusted by user space by writing either "on" or "auto" to -the device's "control" file. If "auto" is written, the device's runtime_auto -flag will be set and the driver will be allowed to power manage the device if -capable of doing that. If "on" is written, the driver is not allowed to power -manage the device which in turn is supposed to remain in the full power state at -run time. User space can check the current value of the runtime_auto flag by -reading from the device's "control" file. +Each device in the driver model has a flag to control whether it is subject to +runtime power management. This flag, called runtime_auto, is initialized by the +bus type (or generally subsystem) code using pm_runtime_allow() or +pm_runtime_forbid(); the default is to allow runtime power management. + +The setting can be adjusted by user space by writing either "on" or "auto" to +the device's power/control sysfs file. Writing "auto" calls pm_runtime_allow(), +setting the flag and allowing the device to be runtime power-managed by its +driver. Writing "on" calls pm_runtime_forbid(), clearing the flag, returning +the device to full power if it was in a low-power state, and preventing the +device from being runtime power-managed. User space can check the current value +of the runtime_auto flag by reading the file. The device's runtime_auto flag has no effect on the handling of system-wide -power transitions by its driver. In particular, the device can (and in the -majority of cases should and will) be put into a low power state during a -system-wide transition to a sleep state (like "suspend-to-RAM") even though its -runtime_auto flag is unset (in which case its "control" file contains "on"). +power transitions. In particular, the device can (and in the majority of cases +should and will) be put into a low-power state during a system-wide transition +to a sleep state even though its runtime_auto flag is clear. -For more information about the runtime power management framework for devices -refer to Documentation/power/runtime_pm.txt. +For more information about the runtime power management framework, refer to +Documentation/power/runtime_pm.txt. -Calling Drivers to Enter System Sleep States -============================================ -When the system goes into a sleep state, each device's driver is asked -to suspend the device by putting it into state compatible with the target +Calling Drivers to Enter and Leave System Sleep States +====================================================== +When the system goes into a sleep state, each device's driver is asked to +suspend the device by putting it into a state compatible with the target system state. That's usually some version of "off", but the details are system-specific. Also, wakeup-enabled devices will usually stay partly functional in order to wake the system. -When the system leaves that low power state, the device's driver is asked -to resume it. The suspend and resume operations always go together, and -both are multi-phase operations. +When the system leaves that low-power state, the device's driver is asked to +resume it by returning it to full power. The suspend and resume operations +always go together, and both are multi-phase operations. -For simple drivers, suspend might quiesce the device using the class code -and then turn its hardware as "off" as possible with late_suspend. The +For simple drivers, suspend might quiesce the device using class code +and then turn its hardware as "off" as possible during suspend_noirq. The matching resume calls would then completely reinitialize the hardware before reactivating its class I/O queues. @@ -224,269 +238,129 @@ devices have been suspended. Device drivers must be prepared to cope with such situations. -Suspending Devices ------------------- -Suspending a given device is done in several phases. Suspending the -system always includes every phase, executing calls for every device -before the next phase begins. Not all busses or classes support all -these callbacks; and not all drivers use all the callbacks. - -Generally, different callbacks are used depending on whether the system is -going to the standby or memory sleep state ("suspend-to-RAM") or it is going to -be hibernated ("suspend-to-disk"). +System Power Management Phases +------------------------------ +Suspending or resuming the system is done in several phases. Different phases +are used for standby or memory sleep states ("suspend-to-RAM") and the +hibernation state ("suspend-to-disk"). Each phase involves executing callbacks +for every device before the next phase begins. Not all busses or classes +support all these callbacks and not all drivers use all the callbacks. The +various phases always run after tasks have been frozen and before they are +unfrozen. Furthermore, the *_noirq phases run at a time when IRQ handlers have +been disabled (except for those marked with the IRQ_WAKEUP flag). -If the system goes to the standby or memory sleep state the phases are seen by -driver notifications issued in this order: +Most phases use bus, type, and class callbacks (that is, methods defined in +dev->bus->pm, dev->type->pm, and dev->class->pm). The prepare and complete +phases are exceptions; they use only bus callbacks. When multiple callbacks +are used in a phase, they are invoked in the order: during +power-down transitions and in the opposite order during power-up transitions. +For example, during the suspend phase the PM core invokes - 1 bus->pm.prepare(dev) is called after tasks are frozen and it is supposed - to call the device driver's ->pm.prepare() method. + dev->class->pm.suspend(dev); + dev->type->pm.suspend(dev); + dev->bus->pm.suspend(dev); - The purpose of this method is mainly to prevent new children of the - device from being registered after it has returned. It also may be used - to generally prepare the device for the upcoming system transition, but - it should not put the device into a low power state. +before moving on to the next device, whereas during the resume phase the core +invokes - 2 class->pm.suspend(dev) is called if dev is associated with a class that - has such a method. It may invoke the device driver's ->pm.suspend() - method, unless type->pm.suspend(dev) or bus->pm.suspend() does that. + dev->bus->pm.resume(dev); + dev->type->pm.resume(dev); + dev->class->pm.resume(dev); - 3 type->pm.suspend(dev) is called if dev is associated with a device type - that has such a method. It may invoke the device driver's - ->pm.suspend() method, unless class->pm.suspend(dev) or - bus->pm.suspend() does that. +These callbacks may in turn invoke device- or driver-specific methods stored in +dev->driver->pm, but they don't have to. - 4 bus->pm.suspend(dev) is called, if implemented. It usually calls the - device driver's ->pm.suspend() method. - This call should generally quiesce the device so that it doesn't do any - I/O after the call has returned. It also may save the device registers - and put it into the appropriate low power state, depending on the bus - type the device is on. - - 5 bus->pm.suspend_noirq(dev) is called, if implemented. It may call the - device driver's ->pm.suspend_noirq() method, depending on the bus type - in question. - - This method is invoked after device interrupts have been suspended, - which means that the driver's interrupt handler will not be called - while it is running. It should save the values of the device's - registers that weren't saved previously and finally put the device into - the appropriate low power state. +Entering System Suspend +----------------------- +When the system goes into the standby or memory sleep state, the phases are: + + prepare, suspend, suspend_noirq. + + 1. The prepare phase is meant to prevent races by preventing new devices + from being registered; the PM core would never know that all the + children of a device had been suspended if new children could be + registered at will. (By contrast, devices may be unregistered at any + time.) Unlike the other suspend-related phases, during the prepare + phase the device tree is traversed top-down. + + The prepare phase uses only a bus callback. After the callback method + returns, no new children may be registered below the device. The method + may also prepare the device or driver in some way for the upcoming + system power transition, but it should not put the device into a + low-power state. + + 2. The suspend methods should quiesce the device to stop it from performing + I/O. They also may save the device registers and put it into the + appropriate low-power state, depending on the bus type the device is on, + and they may enable wakeup events. + + 3. The suspend_noirq phase occurs after IRQ handlers have been disabled, + which means that the driver's interrupt handler will not be called while + the callback method is running. The methods should save the values of + the device's registers that weren't saved previously and finally put the + device into the appropriate low-power state. The majority of subsystems and device drivers need not implement this - method. However, bus types allowing devices to share interrupt vectors, - like PCI, generally need to use it to prevent interrupt handling issues - from happening during suspend. - -At the end of those phases, drivers should normally have stopped all I/O -transactions (DMA, IRQs), saved enough state that they can re-initialize -or restore previous state (as needed by the hardware), and placed the -device into a low-power state. On many platforms they will also use -gate off one or more clock sources; sometimes they will also switch off power -supplies, or reduce voltages. [Drivers supporting runtime PM may already have -performed some or all of the steps needed to prepare for the upcoming system -state transition.] + callback. However, bus types allowing devices to share interrupt + vectors, like PCI, generally need it; otherwise a driver might encounter + an error during the suspend phase by fielding a shared interrupt + generated by some other device after its own device had been set to low + power. + +At the end of these phases, drivers should have stopped all I/O transactions +(DMA, IRQs), saved enough state that they can re-initialize or restore previous +state (as needed by the hardware), and placed the device into a low-power state. +On many platforms they will gate off one or more clock sources; sometimes they +will also switch off power supplies or reduce voltages. (Drivers supporting +runtime PM may already have performed some or all of these steps.) If device_may_wakeup(dev) returns true, the device should be prepared for -generating hardware wakeup signals when the system is in the sleep state to -trigger a system wakeup event. For example, enable_irq_wake() might identify +generating hardware wakeup signals to trigger a system wakeup event when the +system is in the sleep state. For example, enable_irq_wake() might identify GPIO signals hooked up to a switch or other external hardware, and pci_enable_wake() does something similar for the PCI PME signal. -If a driver (or subsystem) fails it suspend method, the system won't enter the -desired low power state; it will resume all the devices it's suspended so far. - - -Hibernation Phases ------------------- -Hibernating the system is more complicated than putting it into the standby or -memory sleep state, because it involves creating a system image and saving it. -Therefore there are more phases of hibernation and special device PM methods are -used in this case. - -First, it is necessary to prepare the system for creating a hibernation image. -This is similar to putting the system into the standby or memory sleep state, -although it generally doesn't require that devices be put into low power states -(that is even not desirable at this point). Driver notifications are then -issued in the following order: - - 1 bus->pm.prepare(dev) is called after tasks have been frozen and enough - memory has been freed. - - 2 class->pm.freeze(dev) is called if implemented. It may invoke the - device driver's ->pm.freeze() method, unless type->pm.freeze(dev) or - bus->pm.freeze() does that. - - 3 type->pm.freeze(dev) is called if implemented. It may invoke the device - driver's ->pm.suspend() method, unless class->pm.freeze(dev) or - bus->pm.freeze() does that. - - 4 bus->pm.freeze(dev) is called, if implemented. It usually calls the - device driver's ->pm.freeze() method. - - 5 bus->pm.freeze_noirq(dev) is called, if implemented. It may call the - device driver's ->pm.freeze_noirq() method, depending on the bus type - in question. - -The difference between ->pm.freeze() and the corresponding ->pm.suspend() (and -similarly for the "noirq" variants) is that the former should avoid preparing -devices to trigger system wakeup events and putting devices into low power -states, although they generally have to save the values of device registers -so that it's possible to restore them during system resume. - -Second, after the system image has been created, the functionality of devices -has to be restored so that the image can be saved. That is similar to resuming -devices after the system has been woken up from the standby or memory sleep -state, which is described below, and causes the following device notifications -to be issued: - - 1 bus->pm.thaw_noirq(dev), if implemented; may call the device driver's - ->pm.thaw_noirq() method, depending on the bus type in question. - - 2 bus->pm.thaw(dev), if implemented; usually calls the device driver's - ->pm.thaw() method. - - 3 type->pm.thaw(dev), if implemented; may call the device driver's - ->pm.thaw() method if not called by the bus type or class. - - 4 class->pm.thaw(dev), if implemented; may call the device driver's - ->pm.thaw() method if not called by the bus type or device type. - - 5 bus->pm.complete(dev), if implemented; may call the device driver's - ->pm.complete() method. - -Generally, the role of the ->pm.thaw() methods (including the "noirq" variants) -is to bring the device back to the fully functional state, so that it may be -used for saving the image, if necessary. The role of bus->pm.complete() is to -reverse whatever bus->pm.prepare() did (likewise for the analogous device driver -callbacks). - -After the image has been saved, the devices need to be prepared for putting the -system into the low power state. That is analogous to suspending them before -putting the system into the standby or memory sleep state and involves the -following device notifications: - - 1 bus->pm.prepare(dev). - - 2 class->pm.poweroff(dev), if implemented; may invoke the device driver's - ->pm.poweroff() method if not called by the bus type or device type. - - 3 type->pm.poweroff(dev), if implemented; may invoke the device driver's - ->pm.poweroff() method if not called by the bus type or device class. - - 4 bus->pm.poweroff(dev), if implemented; usually calls the device driver's - ->pm.poweroff() method (if not called by the device class or type). - - 5 bus->pm.poweroff_noirq(dev), if implemented; may call the device - driver's ->pm.poweroff_noirq() method, depending on the bus type - in question. - -The difference between ->pm.poweroff() and the corresponding ->pm.suspend() (and -analogously for the "noirq" variants) is that the former need not save the -device's registers. Still, they should prepare the device for triggering -system wakeup events if necessary and finally put it into the appropriate low -power state. - - -Device Low Power (suspend) States ---------------------------------- -Device low-power states aren't standard. One device might only handle -"on" and "off, while another might support a dozen different versions of -"on" (how many engines are active?), plus a state that gets back to "on" -faster than from a full "off". - -Some busses define rules about what different suspend states mean. PCI -gives one example: after the suspend sequence completes, a non-legacy -PCI device may not perform DMA or issue IRQs, and any wakeup events it -issues would be issued through the PME# bus signal. Plus, there are -several PCI-standard device states, some of which are optional. - -In contrast, integrated system-on-chip processors often use IRQs as the -wakeup event sources (so drivers would call enable_irq_wake) and might -be able to treat DMA completion as a wakeup event (sometimes DMA can stay -active too, it'd only be the CPU and some peripherals that sleep). - -Some details here may be platform-specific. Systems may have devices that -can be fully active in certain sleep states, such as an LCD display that's -refreshed using DMA while most of the system is sleeping lightly ... and -its frame buffer might even be updated by a DSP or other non-Linux CPU while -the Linux control processor stays idle. - -Moreover, the specific actions taken may depend on the target system state. -One target system state might allow a given device to be very operational; -another might require a hard shut down with re-initialization on resume. -And two different target systems might use the same device in different -ways; the aforementioned LCD might be active in one product's "standby", -but a different product using the same SOC might work differently. +If any of these callbacks returns an error, the system won't enter the desired +low-power state. Instead the PM core will unwind its actions by resuming all +the devices that were suspended. -Resuming Devices ----------------- -Resuming is done in multiple phases, much like suspending, with all -devices processing each phase's calls before the next phase begins. +Leaving System Suspend +---------------------- +When resuming from standby or memory sleep, the phases are: -Again, however, different callbacks are used depending on whether the system is -waking up from the standby or memory sleep state ("suspend-to-RAM") or from -hibernation ("suspend-to-disk"). + resume_noirq, resume, complete. -If the system is waking up from the standby or memory sleep state, the phases -are seen by driver notifications issued in this order: - - 1 bus->pm.resume_noirq(dev) is called, if implemented. It may call the - device driver's ->pm.resume_noirq() method, depending on the bus type in - question. - - The role of this method is to perform actions that need to be performed - before device drivers' interrupt handlers are allowed to be invoked. If - the given bus type permits devices to share interrupt vectors, like PCI, - this method should bring the device and its driver into a state in which - the driver can recognize if the device is the source of incoming - interrupts, if any, and handle them correctly. + 1. The resume_noirq callback methods should perform any actions needed + before the driver's interrupt handlers are invoked. This generally + means undoing the actions of the suspend_noirq phase. If the bus type + permits devices to share interrupt vectors, like PCI, the method should + bring the device and its driver into a state in which the driver can + recognize if the device is the source of incoming interrupts, if any, + and handle them correctly. For example, the PCI bus type's ->pm.resume_noirq() puts the device into - the full power state (D0 in the PCI terminology) and restores the - standard configuration registers of the device. Then, it calls the + the full-power state (D0 in the PCI terminology) and restores the + standard configuration registers of the device. Then it calls the device driver's ->pm.resume_noirq() method to perform device-specific - actions needed at this stage of resume. - - 2 bus->pm.resume(dev) is called, if implemented. It usually calls the - device driver's ->pm.resume() method. - - This call should generally bring the the device back to the working - state, so that it can do I/O as requested after the call has returned. - However, it may be more convenient to use the device class or device - type ->pm.resume() for this purpose, in which case the bus type's - ->pm.resume() method need not be implemented at all. - - 3 type->pm.resume(dev) is called, if implemented. It may invoke the - device driver's ->pm.resume() method, unless class->pm.resume(dev) or - bus->pm.resume() does that. - - For devices that are not associated with any bus type or device class - this method plays the role of bus->pm.resume(). - - 4 class->pm.resume(dev) is called, if implemented. It may invoke the - device driver's ->pm.resume() method, unless bus->pm.resume(dev) or - type->pm.resume() does that. - - For devices that are not associated with any bus type or device type - this method plays the role of bus->pm.resume(). + actions. - 5 bus->pm.complete(dev) is called, if implemented. It is supposed to - invoke the device driver's ->pm.complete() method. + 2. The resume methods should bring the the device back to its operating + state, so that it can perform normal I/O. This generally involves + undoing the actions of the suspend phase. - The role of this method is to reverse whatever bus->pm.prepare(dev) - (or the driver's ->pm.prepare()) did during suspend, if necessary. + 3. The complete phase uses only a bus callback. The method should undo the + actions of the prepare phase. Note, however, that new children may be + registered below the device as soon as the resume callbacks occur; it's + not necessary to wait until the complete phase. -At the end of those phases, drivers should normally be as functional as -they were before suspending: I/O can be performed using DMA and IRQs, and -the relevant clocks are gated on. In principle the device need not be -"fully on"; it might be in a runtime lowpower/suspend state during suspend and -the resume callbacks may try to restore that state, but that need not be -desirable from the user's point of view. In fact, there are multiple reasons -why it's better to always put devices into the "fully working" state in the -system sleep resume callbacks and they are discussed in more detail in -Documentation/power/runtime_pm.txt. +At the end of these phases, drivers should be as functional as they were before +suspending: I/O can be performed using DMA and IRQs, and the relevant clocks are +gated on. Even if the device was in a low-power state before the system sleep +because of runtime power management, afterwards it should be back in its +full-power state. There are multiple reasons why it's best to do this; they are +discussed in more detail in Documentation/power/runtime_pm.txt. However, the details here may again be platform-specific. For example, some systems support multiple "run" states, and the mode in effect at @@ -502,103 +376,156 @@ the suspend was carried out, but that can't be guaranteed (in fact, it ususally is not the case). Drivers must also be prepared to notice that the device has been removed -while the system was powered off, whenever that's physically possible. +while the system was powered down, whenever that's physically possible. PCMCIA, MMC, USB, Firewire, SCSI, and even IDE are common examples of busses where common Linux platforms will see such removal. Details of how drivers will notice and handle such removals are currently bus-specific, and often involve a separate thread. +These callbacks may return an error value, but the PM core will ignore such +errors since there's nothing it can do about them other than printing them in +the system log. -Resume From Hibernation ------------------------ + +Entering Hibernation +-------------------- +Hibernating the system is more complicated than putting it into the standby or +memory sleep state, because it involves creating and saving a system image. +Therefore there are more phases for hibernation, with a different set of +callbacks. These phases always run after tasks have been frozen and memory has +been freed. + +The general procedure for hibernation is to quiesce all devices (freeze), create +an image of the system memory while everything is stable, reactivate all +devices (thaw), write the image to permanent storage, and finally shut down the +system (poweroff). The phases used to accomplish this are: + + prepare, freeze, freeze_noirq, thaw_noirq, thaw, complete, + prepare, poweroff, poweroff_noirq + + 1. The prepare phase is discussed in the "Entering System Suspend" section + above. + + 2. The freeze methods should quiesce the device so that it doesn't generate + IRQs or DMA, and they may need to save the values of device registers. + However the device does not have to be put in a low-power state, and to + save time it's best not to do so. Also, the device should not be + prepared to generate wakeup events. + + 3. The freeze_noirq phase is analogous to the suspend_noirq phase discussed + above, except again that the device should not be put in a low-power + state and should not be allowed to generate wakeup events. + +At this point the system image is created. All devices should be inactive and +the contents of memory should remain undisturbed while this happens, so that the +image forms an atomic snapshot of the system state. + + 4. The thaw_noirq phase is analogous to the resume_noirq phase discussed + above. The main difference is that its methods can assume the device is + in the same state as at the end of the freeze_noirq phase. + + 5. The thaw phase is analogous to the resume phase discussed above. Its + methods should bring the device back to an operating state, so that it + can be used for saving the image if necessary. + + 6. The complete phase is discussed in the "Leaving System Suspend" section + above. + +At this point the system image is saved, and the devices then need to be +prepared for the upcoming system shutdown. This is much like suspending them +before putting the system into the standby or memory sleep state, and the phases +are similar. + + 7. The prepare phase is discussed above. + + 8. The poweroff phase is analogous to the suspend phase. + + 9. The poweroff_noirq phase is analogous to the suspend_noirq phase. + +The poweroff and poweroff_noirq callbacks should do essentially the same things +as the suspend and suspend_noirq callbacks. The only notable difference is that +they need not store the device register values, because the registers should +already have been stored during the freeze or freeze_noirq phases. + + +Leaving Hibernation +------------------- Resuming from hibernation is, again, more complicated than resuming from a sleep state in which the contents of main memory are preserved, because it requires a system image to be loaded into memory and the pre-hibernation memory contents to be restored before control can be passed back to the image kernel. -In principle, the image might be loaded into memory and the pre-hibernation -memory contents might be restored by the boot loader. For this purpose, -however, the boot loader would need to know the image kernel's entry point and -there's no protocol defined for passing that information to boot loaders. As -a workaround, the boot loader loads a fresh instance of the kernel, called the -boot kernel, into memory and passes control to it in a usual way. Then, the -boot kernel reads the hibernation image, restores the pre-hibernation memory -contents and passes control to the image kernel. Thus, in fact, two different -kernels are involved in resuming from hibernation and in general they are not -only different because they play different roles in this operation. Actually, -the boot kernel may be completely different from the image kernel. Not only -the configuration of it, but also the version of it may be different. -The consequences of this are important to device drivers and their subsystems -(bus types, device classes and device types) too. - -Namely, to be able to load the hibernation image into memory, the boot kernel -needs to include at least the subset of device drivers allowing it to access the -storage medium containing the image, although it generally doesn't need to -include all of the drivers included into the image kernel. After the image has -been loaded the devices handled by those drivers need to be prepared for passing -control back to the image kernel. This is very similar to the preparation of -devices for creating a hibernation image described above. In fact, it is done -in the same way, with the help of the ->pm.prepare(), ->pm.freeze() and -->pm.freeze_noirq() callbacks, but only for device drivers included in the boot -kernel (whose versions may generally be different from the versions of the -analogous drivers from the image kernel). +Although in principle, the image might be loaded into memory and the +pre-hibernation memory contents restored by the boot loader, in practice this +can't be done because boot loaders aren't smart enough and there is no +established protocol for passing the necessary information. So instead, the +boot loader loads a fresh instance of the kernel, called the boot kernel, into +memory and passes control to it in the usual way. Then the boot kernel reads +the system image, restores the pre-hibernation memory contents, and passes +control to the image kernel. Thus two different kernels are involved in +resuming from hibernation. In fact, the boot kernel may be completely different +from the image kernel: a different configuration and even a different version. +This has important consequences for device drivers and their subsystems. + +To be able to load the system image into memory, the boot kernel needs to +include at least a subset of device drivers allowing it to access the storage +medium containing the image, although it doesn't need to include all of the +drivers present in the image kernel. After the image has been loaded, the +devices managed by the boot kernel need to be prepared for passing control back +to the image kernel. This is very similar to the initial steps involved in +creating a system image, and it is accomplished in the same way, using prepare, +freeze, and freeze_noirq phases. However the devices affected by these phases +are only those having drivers in the boot kernel; other devices will still be in +whatever state the boot loader left them. Should the restoration of the pre-hibernation memory contents fail, the boot -kernel would carry out the procedure of "thawing" devices described above, using -the ->pm.thaw_noirq(), ->pm.thaw(), and ->pm.complete() callbacks provided by -subsystems and device drivers. This, however, is a very rare condition. Most -often the pre-hibernation memory contents are restored successfully and control -is passed to the image kernel that is now responsible for bringing the system -back to the working state. +kernel would go through the "thawing" procedure described above, using the +thaw_noirq, thaw, and complete phases, and then continue running normally. This +happens only rarely. Most often the pre-hibernation memory contents are +restored successfully and control is passed to the image kernel, which then +becomes responsible for bringing the system back to the working state. -To achieve this goal, among other things, the image kernel restores the -pre-hibernation functionality of devices. This operation is analogous to the -resuming of devices after waking up from the memory sleep state, although it -involves different device notifications which are the following: +To achieve this, the image kernel must restore the devices' pre-hibernation +functionality. The operation is much like waking up from the memory sleep +state, although it involves different phases: - 1 bus->pm.restore_noirq(dev), if implemented; may call the device driver's - ->pm.restore_noirq() method, depending on the bus type in question. + restore_noirq, restore, complete - 2 bus->pm.restore(dev), if implemented; usually calls the device driver's - ->pm.restore() method. + 1. The restore_noirq phase is analogous to the resume_noirq phase. - 3 type->pm.restore(dev), if implemented; may call the device driver's - ->pm.restore() method if not called by the bus type or class. + 2. The restore phase is analogous to the resume phase. - 4 class->pm.restore(dev), if implemented; may call the device driver's - ->pm.restore() method if not called by the bus type or device type. + 3. The complete phase is discussed above. - 5 bus->pm.complete(dev), if implemented; may call the device driver's - ->pm.complete() method. - -The roles of the ->pm.restore_noirq() and ->pm.restore() callbacks are analogous -to the roles of the corresponding resume callbacks, but they must assume that -the device may have been accessed before by the boot kernel. Consequently, the -state of the device before they are called may be different from the state of it -right prior to calling the resume callbacks. That difference usually doesn't -matter, so the majority of device drivers can set their resume and restore -callback pointers to the same routine. Nevertheless, different callback -pointers are used in case there is a situation where it actually matters. +The main difference from resume[_noirq] is that restore[_noirq] must assume the +device has been accessed and reconfigured by the boot loader or the boot kernel. +Consequently the state of the device may be different from the state remembered +from the freeze and freeze_noirq phases. The device may even need to be reset +and completely re-initialized. In many cases this difference doesn't matter, so +the resume[_noirq] and restore[_norq] method pointers can be set to the same +routines. Nevertheless, different callback pointers are used in case there is a +situation where it actually matters. System Devices -------------- -System devices follow a slightly different API, which can be found in +System devices (sysdevs) follow a slightly different API, which can be found in include/linux/sysdev.h drivers/base/sys.c -System devices will only be suspended with interrupts disabled, and after -all other devices have been suspended. On resume, they will be resumed -before any other devices, and also with interrupts disabled. +System devices will be suspended with interrupts disabled, and after all other +devices have been suspended. On resume, they will be resumed before any other +devices, and also with interrupts disabled. These things occur in special +"sysdev_driver" phases, which affect only system devices. -That is, when the non-boot CPUs are all offline and IRQs are disabled on the -remaining online CPU, then the sysdev_driver.suspend() phase is carried out, and -the system enters a sleep state (or hibernation image is created). During -resume (or after the image has been created) the sysdev_driver.resume() phase -is carried out, IRQs are enabled on the only online CPU, the non-boot CPUs are -enabled and that is followed by the "early resume" phase (in which the "noirq" -callbacks provided by subsystems and device drivers are invoked). +Thus, after the suspend_noirq (or freeze_noirq or poweroff_noirq) phase, when +the non-boot CPUs are all offline and IRQs are disabled on the remaining online +CPU, then a sysdev_driver.suspend phase is carried out, and the system enters a +sleep state (or a system image is created). During resume (or after the image +has been created or loaded) a sysdev_driver.resume phase is carried out, IRQs +are enabled on the only online CPU, the non-boot CPUs are enabled, and the +resume_noirq (or thaw_noirq or restore_noirq) phase begins. Code to actually enter and exit the system-wide low power state sometimes involves hardware details that are only known to the boot firmware, and @@ -606,18 +533,47 @@ may leave a CPU running software (from SRAM or flash memory) that monitors the system and manages its wakeup sequence. +Device Low Power (suspend) States +--------------------------------- +Device low-power states aren't standard. One device might only handle +"on" and "off, while another might support a dozen different versions of +"on" (how many engines are active?), plus a state that gets back to "on" +faster than from a full "off". + +Some busses define rules about what different suspend states mean. PCI +gives one example: after the suspend sequence completes, a non-legacy +PCI device may not perform DMA or issue IRQs, and any wakeup events it +issues would be issued through the PME# bus signal. Plus, there are +several PCI-standard device states, some of which are optional. + +In contrast, integrated system-on-chip processors often use IRQs as the +wakeup event sources (so drivers would call enable_irq_wake) and might +be able to treat DMA completion as a wakeup event (sometimes DMA can stay +active too, it'd only be the CPU and some peripherals that sleep). + +Some details here may be platform-specific. Systems may have devices that +can be fully active in certain sleep states, such as an LCD display that's +refreshed using DMA while most of the system is sleeping lightly ... and +its frame buffer might even be updated by a DSP or other non-Linux CPU while +the Linux control processor stays idle. + +Moreover, the specific actions taken may depend on the target system state. +One target system state might allow a given device to be very operational; +another might require a hard shut down with re-initialization on resume. +And two different target systems might use the same device in different +ways; the aforementioned LCD might be active in one product's "standby", +but a different product using the same SOC might work differently. + + Power Management Notifiers -------------------------- -As stated in Documentation/power/notifiers.txt, there are some operations that -cannot be carried out by the power management callbacks discussed above, because -carrying them out at these points would be too late or too early. To handle -these cases subsystems and device drivers may register power management -notifiers that are called before tasks are frozen and after they have been -thawed. - -Generally speaking, the PM notifiers are suitable for performing actions that -either require user space to be available, or at least won't interfere with user -space in a wrong way. +There are some operations that cannot be carried out by the power management +callbacks discussed above, because the callbacks occur too late or too early. +To handle these cases, subsystems and device drivers may register power +management notifiers that are called before tasks are frozen and after they have +been thawed. Generally speaking, the PM notifiers are suitable for performing +actions that either require user space to be available, or at least won't +interfere with user space. For details refer to Documentation/power/notifiers.txt. @@ -629,24 +585,23 @@ running. This feature is useful for devices that are not being used, and can offer significant power savings on a running system. These devices often support a range of runtime power states, which might use names such as "off", "sleep", "idle", "active", and so on. Those states will in some -cases (like PCI) be partially constrained by a bus the device uses, and will +cases (like PCI) be partially constrained by the bus the device uses, and will usually include hardware states that are also used in system sleep states. -Note, however, that a system-wide power transition can be started while some -devices are in low power states due to the runtime power management. The system -sleep PM callbacks should generally recognize such situations and react to them -appropriately, but the recommended actions to be taken in that cases are -subsystem-specific. - -In some cases the decision may be made at the subsystem level while in some -other cases the device driver may be left to decide. In some cases it may be -desirable to leave a suspended device in that state during system-wide power -transition, but in some other cases the device ought to be put back into the -full power state, for example to be configured for system wakeup or so that its -system wakeup capability can be disabled. That all depends on the hardware -and the design of the subsystem and device driver in question. - -During system-wide resume from a sleep state it's better to put devices into -the full power state, as explained in Documentation/power/runtime_pm.txt. Refer -to that document for more information regarding this particular issue as well as +A system-wide power transition can be started while some devices are in low +power states due to runtime power management. The system sleep PM callbacks +should recognize such situations and react to them appropriately, but the +necessary actions are subsystem-specific. + +In some cases the decision may be made at the subsystem level while in other +cases the device driver may be left to decide. In some cases it may be +desirable to leave a suspended device in that state during a system-wide power +transition, but in other cases the device must be put back into the full-power +state temporarily, for example so that its system wakeup capability can be +disabled. This all depends on the hardware and the design of the subsystem and +device driver in question. + +During system-wide resume from a sleep state it's best to put devices into the +full-power state, as explained in Documentation/power/runtime_pm.txt. Refer to +that document for more information regarding this particular issue as well as for information on the device runtime power management framework in general. -- cgit v1.2.3-70-g09d2 From bc6a0cbd576c66995d782331456f68ae63a50af4 Mon Sep 17 00:00:00 2001 From: Pavel Machek Date: Fri, 23 Apr 2010 20:32:29 +0200 Subject: PM / Hibernate: document open(/dev/snapshot) side effects Opening and closing /dev/snapshot causes the kernel to carry out some hibernate preparations that should be documented. [rjw: Added the changelog.] Signed-off-by: Pavel Machek Signed-off-by: Rafael J. Wysocki --- Documentation/power/userland-swsusp.txt | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'Documentation') diff --git a/Documentation/power/userland-swsusp.txt b/Documentation/power/userland-swsusp.txt index b967cd9137d..81680f9f590 100644 --- a/Documentation/power/userland-swsusp.txt +++ b/Documentation/power/userland-swsusp.txt @@ -24,6 +24,10 @@ assumed to be in the resume mode. The device cannot be open for simultaneous reading and writing. It is also impossible to have the device open more than once at a time. +Even opening the device has side effects. Data structures are +allocated, and PM_HIBERNATION_PREPARE / PM_RESTORE_PREPARE chains are +called. + The ioctl() commands recognized by the device are: SNAPSHOT_FREEZE - freeze user space processes (the current process is -- cgit v1.2.3-70-g09d2 From ed77134bfccf5e75b6cbadab268e559dbe6a4ebb Mon Sep 17 00:00:00 2001 From: Mark Gross Date: Thu, 6 May 2010 01:59:26 +0200 Subject: PM QOS update This patch changes the string based list management to a handle base implementation to help with the hot path use of pm-qos, it also renames much of the API to use "request" as opposed to "requirement" that was used in the initial implementation. I did this because request more accurately represents what it actually does. Also, I added a string based ABI for users wanting to use a string interface. So if the user writes 0xDDDDDDDD formatted hex it will be accepted by the interface. (someone asked me for it and I don't think it hurts anything.) This patch updates some documentation input I got from Randy. Signed-off-by: markgross Signed-off-by: Rafael J. Wysocki --- Documentation/power/pm_qos_interface.txt | 48 +++---- drivers/acpi/processor_idle.c | 2 +- drivers/cpuidle/governors/ladder.c | 2 +- drivers/cpuidle/governors/menu.c | 2 +- drivers/net/e1000e/netdev.c | 22 ++-- drivers/net/igbvf/netdev.c | 6 +- drivers/net/wireless/ipw2x00/ipw2100.c | 11 +- include/linux/netdevice.h | 4 + include/linux/pm_qos_params.h | 14 +- include/sound/pcm.h | 3 +- kernel/pm_qos_params.c | 214 +++++++++++++++---------------- net/mac80211/mlme.c | 2 +- sound/core/pcm.c | 3 - sound/core/pcm_native.c | 14 +- 14 files changed, 176 insertions(+), 171 deletions(-) (limited to 'Documentation') diff --git a/Documentation/power/pm_qos_interface.txt b/Documentation/power/pm_qos_interface.txt index c40866e8b95..bfed898a03f 100644 --- a/Documentation/power/pm_qos_interface.txt +++ b/Documentation/power/pm_qos_interface.txt @@ -18,44 +18,46 @@ and pm_qos_params.h. This is done because having the available parameters being runtime configurable or changeable from a driver was seen as too easy to abuse. -For each parameter a list of performance requirements is maintained along with +For each parameter a list of performance requests is maintained along with an aggregated target value. The aggregated target value is updated with -changes to the requirement list or elements of the list. Typically the -aggregated target value is simply the max or min of the requirement values held +changes to the request list or elements of the list. Typically the +aggregated target value is simply the max or min of the request values held in the parameter list elements. From kernel mode the use of this interface is simple: -pm_qos_add_requirement(param_id, name, target_value): -Will insert a named element in the list for that identified PM_QOS parameter -with the target value. Upon change to this list the new target is recomputed -and any registered notifiers are called only if the target value is now -different. -pm_qos_update_requirement(param_id, name, new_target_value): -Will search the list identified by the param_id for the named list element and -then update its target value, calling the notification tree if the aggregated -target is changed. with that name is already registered. +handle = pm_qos_add_request(param_class, target_value): +Will insert an element into the list for that identified PM_QOS class with the +target value. Upon change to this list the new target is recomputed and any +registered notifiers are called only if the target value is now different. +Clients of pm_qos need to save the returned handle. -pm_qos_remove_requirement(param_id, name): -Will search the identified list for the named element and remove it, after -removal it will update the aggregate target and call the notification tree if -the target was changed as a result of removing the named requirement. +void pm_qos_update_request(handle, new_target_value): +Will update the list element pointed to by the handle with the new target value +and recompute the new aggregated target, calling the notification tree if the +target is changed. + +void pm_qos_remove_request(handle): +Will remove the element. After removal it will update the aggregate target and +call the notification tree if the target was changed as a result of removing +the request. From user mode: -Only processes can register a pm_qos requirement. To provide for automatic -cleanup for process the interface requires the process to register its -parameter requirements in the following way: +Only processes can register a pm_qos request. To provide for automatic +cleanup of a process, the interface requires the process to register its +parameter requests in the following way: To register the default pm_qos target for the specific parameter, the process must open one of /dev/[cpu_dma_latency, network_latency, network_throughput] As long as the device node is held open that process has a registered -requirement on the parameter. The name of the requirement is "process_" -derived from the current->pid from within the open system call. +request on the parameter. -To change the requested target value the process needs to write a s32 value to -the open device node. This translates to a pm_qos_update_requirement call. +To change the requested target value the process needs to write an s32 value to +the open device node. Alternatively the user mode program could write a hex +string for the value using 10 char long format e.g. "0x12345678". This +translates to a pm_qos_update_request call. To remove the user mode request for a target value simply close the device node. diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 5939e7f7d8e..c3817e1f32c 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -698,7 +698,7 @@ static int acpi_processor_power_seq_show(struct seq_file *seq, void *offset) "max_cstate: C%d\n" "maximum allowed latency: %d usec\n", pr->power.state ? pr->power.state - pr->power.states : 0, - max_cstate, pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY)); + max_cstate, pm_qos_request(PM_QOS_CPU_DMA_LATENCY)); seq_puts(seq, "states:\n"); diff --git a/drivers/cpuidle/governors/ladder.c b/drivers/cpuidle/governors/ladder.c index 1c1ceb4f218..12c98900dcf 100644 --- a/drivers/cpuidle/governors/ladder.c +++ b/drivers/cpuidle/governors/ladder.c @@ -67,7 +67,7 @@ static int ladder_select_state(struct cpuidle_device *dev) struct ladder_device *ldev = &__get_cpu_var(ladder_devices); struct ladder_device_state *last_state; int last_residency, last_idx = ldev->last_state_idx; - int latency_req = pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY); + int latency_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY); /* Special case when user has set very strict latency requirement */ if (unlikely(latency_req == 0)) { diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c index f8e57c6303f..b81ad9c731a 100644 --- a/drivers/cpuidle/governors/menu.c +++ b/drivers/cpuidle/governors/menu.c @@ -182,7 +182,7 @@ static u64 div_round64(u64 dividend, u32 divisor) static int menu_select(struct cpuidle_device *dev) { struct menu_device *data = &__get_cpu_var(menu_devices); - int latency_req = pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY); + int latency_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY); int i; int multiplier; diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c index dbf81788bb4..d5d55c6a373 100644 --- a/drivers/net/e1000e/netdev.c +++ b/drivers/net/e1000e/netdev.c @@ -2524,12 +2524,12 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) * excessive C-state transition latencies result in * dropped transactions. */ - pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, - adapter->netdev->name, 55); + pm_qos_update_request( + adapter->netdev->pm_qos_req, 55); } else { - pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, - adapter->netdev->name, - PM_QOS_DEFAULT_VALUE); + pm_qos_update_request( + adapter->netdev->pm_qos_req, + PM_QOS_DEFAULT_VALUE); } } @@ -2824,8 +2824,8 @@ int e1000e_up(struct e1000_adapter *adapter) /* DMA latency requirement to workaround early-receive/jumbo issue */ if (adapter->flags & FLAG_HAS_ERT) - pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, - adapter->netdev->name, + adapter->netdev->pm_qos_req = + pm_qos_add_request(PM_QOS_CPU_DMA_LATENCY, PM_QOS_DEFAULT_VALUE); /* hardware has been reset, we need to reload some things */ @@ -2887,9 +2887,11 @@ void e1000e_down(struct e1000_adapter *adapter) e1000_clean_tx_ring(adapter); e1000_clean_rx_ring(adapter); - if (adapter->flags & FLAG_HAS_ERT) - pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, - adapter->netdev->name); + if (adapter->flags & FLAG_HAS_ERT) { + pm_qos_remove_request( + adapter->netdev->pm_qos_req); + adapter->netdev->pm_qos_req = NULL; + } /* * TODO: for power management, we could drop the link and diff --git a/drivers/net/igbvf/netdev.c b/drivers/net/igbvf/netdev.c index 1b1edad1eb5..f16e981812a 100644 --- a/drivers/net/igbvf/netdev.c +++ b/drivers/net/igbvf/netdev.c @@ -48,6 +48,7 @@ #define DRV_VERSION "1.0.0-k0" char igbvf_driver_name[] = "igbvf"; const char igbvf_driver_version[] = DRV_VERSION; +struct pm_qos_request_list *igbvf_driver_pm_qos_req; static const char igbvf_driver_string[] = "Intel(R) Virtual Function Network Driver"; static const char igbvf_copyright[] = "Copyright (c) 2009 Intel Corporation."; @@ -2899,7 +2900,7 @@ static int __init igbvf_init_module(void) printk(KERN_INFO "%s\n", igbvf_copyright); ret = pci_register_driver(&igbvf_driver); - pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, igbvf_driver_name, + igbvf_driver_pm_qos_req = pm_qos_add_request(PM_QOS_CPU_DMA_LATENCY, PM_QOS_DEFAULT_VALUE); return ret; @@ -2915,7 +2916,8 @@ module_init(igbvf_init_module); static void __exit igbvf_exit_module(void) { pci_unregister_driver(&igbvf_driver); - pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, igbvf_driver_name); + pm_qos_remove_request(igbvf_driver_pm_qos_req); + igbvf_driver_pm_qos_req = NULL; } module_exit(igbvf_exit_module); diff --git a/drivers/net/wireless/ipw2x00/ipw2100.c b/drivers/net/wireless/ipw2x00/ipw2100.c index 9b72c45a774..2b05fe5e994 100644 --- a/drivers/net/wireless/ipw2x00/ipw2100.c +++ b/drivers/net/wireless/ipw2x00/ipw2100.c @@ -174,6 +174,8 @@ that only one external action is invoked at a time. #define DRV_DESCRIPTION "Intel(R) PRO/Wireless 2100 Network Driver" #define DRV_COPYRIGHT "Copyright(c) 2003-2006 Intel Corporation" +struct pm_qos_request_list *ipw2100_pm_qos_req; + /* Debugging stuff */ #ifdef CONFIG_IPW2100_DEBUG #define IPW2100_RX_DEBUG /* Reception debugging */ @@ -1739,7 +1741,7 @@ static int ipw2100_up(struct ipw2100_priv *priv, int deferred) /* the ipw2100 hardware really doesn't want power management delays * longer than 175usec */ - pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100", 175); + pm_qos_update_request(ipw2100_pm_qos_req, 175); /* If the interrupt is enabled, turn it off... */ spin_lock_irqsave(&priv->low_lock, flags); @@ -1887,8 +1889,7 @@ static void ipw2100_down(struct ipw2100_priv *priv) ipw2100_disable_interrupts(priv); spin_unlock_irqrestore(&priv->low_lock, flags); - pm_qos_update_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100", - PM_QOS_DEFAULT_VALUE); + pm_qos_update_request(ipw2100_pm_qos_req, PM_QOS_DEFAULT_VALUE); /* We have to signal any supplicant if we are disassociating */ if (associated) @@ -6669,7 +6670,7 @@ static int __init ipw2100_init(void) if (ret) goto out; - pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100", + ipw2100_pm_qos_req = pm_qos_add_request(PM_QOS_CPU_DMA_LATENCY, PM_QOS_DEFAULT_VALUE); #ifdef CONFIG_IPW2100_DEBUG ipw2100_debug_level = debug; @@ -6692,7 +6693,7 @@ static void __exit ipw2100_exit(void) &driver_attr_debug_level); #endif pci_unregister_driver(&ipw2100_pci_driver); - pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, "ipw2100"); + pm_qos_remove_request(ipw2100_pm_qos_req); } module_init(ipw2100_init); diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index fa8b4763799..3857517f1ca 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -31,6 +31,7 @@ #include #ifdef __KERNEL__ +#include #include #include #include @@ -711,6 +712,9 @@ struct net_device { * the interface. */ char name[IFNAMSIZ]; + + struct pm_qos_request_list *pm_qos_req; + /* device name hash chain */ struct hlist_node name_hlist; /* snmp alias */ diff --git a/include/linux/pm_qos_params.h b/include/linux/pm_qos_params.h index d74f75ed1e4..8ba440e5eb7 100644 --- a/include/linux/pm_qos_params.h +++ b/include/linux/pm_qos_params.h @@ -14,12 +14,14 @@ #define PM_QOS_NUM_CLASSES 4 #define PM_QOS_DEFAULT_VALUE -1 -int pm_qos_add_requirement(int qos, char *name, s32 value); -int pm_qos_update_requirement(int qos, char *name, s32 new_value); -void pm_qos_remove_requirement(int qos, char *name); +struct pm_qos_request_list; -int pm_qos_requirement(int qos); +struct pm_qos_request_list *pm_qos_add_request(int pm_qos_class, s32 value); +void pm_qos_update_request(struct pm_qos_request_list *pm_qos_req, + s32 new_value); +void pm_qos_remove_request(struct pm_qos_request_list *pm_qos_req); -int pm_qos_add_notifier(int qos, struct notifier_block *notifier); -int pm_qos_remove_notifier(int qos, struct notifier_block *notifier); +int pm_qos_request(int pm_qos_class); +int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier); +int pm_qos_remove_notifier(int pm_qos_class, struct notifier_block *notifier); diff --git a/include/sound/pcm.h b/include/sound/pcm.h index 8b611a56198..dd76cdede64 100644 --- a/include/sound/pcm.h +++ b/include/sound/pcm.h @@ -29,6 +29,7 @@ #include #include #include +#include #define snd_pcm_substream_chip(substream) ((substream)->private_data) #define snd_pcm_chip(pcm) ((pcm)->private_data) @@ -365,7 +366,7 @@ struct snd_pcm_substream { int number; char name[32]; /* substream name */ int stream; /* stream (direction) */ - char latency_id[20]; /* latency identifier */ + struct pm_qos_request_list *latency_pm_qos_req; /* pm_qos request */ size_t buffer_bytes_max; /* limit ring buffer size */ struct snd_dma_buffer dma_buffer; unsigned int dma_buf_id; diff --git a/kernel/pm_qos_params.c b/kernel/pm_qos_params.c index 3db49b9ca37..a1aea040eb5 100644 --- a/kernel/pm_qos_params.c +++ b/kernel/pm_qos_params.c @@ -2,7 +2,7 @@ * This module exposes the interface to kernel space for specifying * QoS dependencies. It provides infrastructure for registration of: * - * Dependents on a QoS value : register requirements + * Dependents on a QoS value : register requests * Watchers of QoS value : get notified when target QoS value changes * * This QoS design is best effort based. Dependents register their QoS needs. @@ -14,19 +14,21 @@ * timeout: usec <-- currently not used. * throughput: kbs (kilo byte / sec) * - * There are lists of pm_qos_objects each one wrapping requirements, notifiers + * There are lists of pm_qos_objects each one wrapping requests, notifiers * - * User mode requirements on a QOS parameter register themselves to the + * User mode requests on a QOS parameter register themselves to the * subsystem by opening the device node /dev/... and writing there request to * the node. As long as the process holds a file handle open to the node the * client continues to be accounted for. Upon file release the usermode - * requirement is removed and a new qos target is computed. This way when the - * requirement that the application has is cleaned up when closes the file + * request is removed and a new qos target is computed. This way when the + * request that the application has is cleaned up when closes the file * pointer or exits the pm_qos_object will get an opportunity to clean up. * * Mark Gross */ +/*#define DEBUG*/ + #include #include #include @@ -42,25 +44,25 @@ #include /* - * locking rule: all changes to requirements or notifiers lists + * locking rule: all changes to requests or notifiers lists * or pm_qos_object list and pm_qos_objects need to happen with pm_qos_lock * held, taken with _irqsave. One lock to rule them all */ -struct requirement_list { +struct pm_qos_request_list { struct list_head list; union { s32 value; s32 usec; s32 kbps; }; - char *name; + int pm_qos_class; }; static s32 max_compare(s32 v1, s32 v2); static s32 min_compare(s32 v1, s32 v2); struct pm_qos_object { - struct requirement_list requirements; + struct pm_qos_request_list requests; struct blocking_notifier_head *notifiers; struct miscdevice pm_qos_power_miscdev; char *name; @@ -72,7 +74,7 @@ struct pm_qos_object { static struct pm_qos_object null_pm_qos; static BLOCKING_NOTIFIER_HEAD(cpu_dma_lat_notifier); static struct pm_qos_object cpu_dma_pm_qos = { - .requirements = {LIST_HEAD_INIT(cpu_dma_pm_qos.requirements.list)}, + .requests = {LIST_HEAD_INIT(cpu_dma_pm_qos.requests.list)}, .notifiers = &cpu_dma_lat_notifier, .name = "cpu_dma_latency", .default_value = 2000 * USEC_PER_SEC, @@ -82,7 +84,7 @@ static struct pm_qos_object cpu_dma_pm_qos = { static BLOCKING_NOTIFIER_HEAD(network_lat_notifier); static struct pm_qos_object network_lat_pm_qos = { - .requirements = {LIST_HEAD_INIT(network_lat_pm_qos.requirements.list)}, + .requests = {LIST_HEAD_INIT(network_lat_pm_qos.requests.list)}, .notifiers = &network_lat_notifier, .name = "network_latency", .default_value = 2000 * USEC_PER_SEC, @@ -93,8 +95,7 @@ static struct pm_qos_object network_lat_pm_qos = { static BLOCKING_NOTIFIER_HEAD(network_throughput_notifier); static struct pm_qos_object network_throughput_pm_qos = { - .requirements = - {LIST_HEAD_INIT(network_throughput_pm_qos.requirements.list)}, + .requests = {LIST_HEAD_INIT(network_throughput_pm_qos.requests.list)}, .notifiers = &network_throughput_notifier, .name = "network_throughput", .default_value = 0, @@ -135,31 +136,34 @@ static s32 min_compare(s32 v1, s32 v2) } -static void update_target(int target) +static void update_target(int pm_qos_class) { s32 extreme_value; - struct requirement_list *node; + struct pm_qos_request_list *node; unsigned long flags; int call_notifier = 0; spin_lock_irqsave(&pm_qos_lock, flags); - extreme_value = pm_qos_array[target]->default_value; + extreme_value = pm_qos_array[pm_qos_class]->default_value; list_for_each_entry(node, - &pm_qos_array[target]->requirements.list, list) { - extreme_value = pm_qos_array[target]->comparitor( + &pm_qos_array[pm_qos_class]->requests.list, list) { + extreme_value = pm_qos_array[pm_qos_class]->comparitor( extreme_value, node->value); } - if (atomic_read(&pm_qos_array[target]->target_value) != extreme_value) { + if (atomic_read(&pm_qos_array[pm_qos_class]->target_value) != + extreme_value) { call_notifier = 1; - atomic_set(&pm_qos_array[target]->target_value, extreme_value); - pr_debug(KERN_ERR "new target for qos %d is %d\n", target, - atomic_read(&pm_qos_array[target]->target_value)); + atomic_set(&pm_qos_array[pm_qos_class]->target_value, + extreme_value); + pr_debug(KERN_ERR "new target for qos %d is %d\n", pm_qos_class, + atomic_read(&pm_qos_array[pm_qos_class]->target_value)); } spin_unlock_irqrestore(&pm_qos_lock, flags); if (call_notifier) - blocking_notifier_call_chain(pm_qos_array[target]->notifiers, - (unsigned long) extreme_value, NULL); + blocking_notifier_call_chain( + pm_qos_array[pm_qos_class]->notifiers, + (unsigned long) extreme_value, NULL); } static int register_pm_qos_misc(struct pm_qos_object *qos) @@ -185,125 +189,110 @@ static int find_pm_qos_object_by_minor(int minor) } /** - * pm_qos_requirement - returns current system wide qos expectation + * pm_qos_request - returns current system wide qos expectation * @pm_qos_class: identification of which qos value is requested * * This function returns the current target value in an atomic manner. */ -int pm_qos_requirement(int pm_qos_class) +int pm_qos_request(int pm_qos_class) { return atomic_read(&pm_qos_array[pm_qos_class]->target_value); } -EXPORT_SYMBOL_GPL(pm_qos_requirement); +EXPORT_SYMBOL_GPL(pm_qos_request); /** - * pm_qos_add_requirement - inserts new qos request into the list + * pm_qos_add_request - inserts new qos request into the list * @pm_qos_class: identifies which list of qos request to us - * @name: identifies the request * @value: defines the qos request * * This function inserts a new entry in the pm_qos_class list of requested qos * performance characteristics. It recomputes the aggregate QoS expectations - * for the pm_qos_class of parameters. + * for the pm_qos_class of parameters, and returns the pm_qos_request list + * element as a handle for use in updating and removal. Call needs to save + * this handle for later use. */ -int pm_qos_add_requirement(int pm_qos_class, char *name, s32 value) +struct pm_qos_request_list *pm_qos_add_request(int pm_qos_class, s32 value) { - struct requirement_list *dep; + struct pm_qos_request_list *dep; unsigned long flags; - dep = kzalloc(sizeof(struct requirement_list), GFP_KERNEL); + dep = kzalloc(sizeof(struct pm_qos_request_list), GFP_KERNEL); if (dep) { if (value == PM_QOS_DEFAULT_VALUE) dep->value = pm_qos_array[pm_qos_class]->default_value; else dep->value = value; - dep->name = kstrdup(name, GFP_KERNEL); - if (!dep->name) - goto cleanup; + dep->pm_qos_class = pm_qos_class; spin_lock_irqsave(&pm_qos_lock, flags); list_add(&dep->list, - &pm_qos_array[pm_qos_class]->requirements.list); + &pm_qos_array[pm_qos_class]->requests.list); spin_unlock_irqrestore(&pm_qos_lock, flags); update_target(pm_qos_class); - - return 0; } -cleanup: - kfree(dep); - return -ENOMEM; + return dep; } -EXPORT_SYMBOL_GPL(pm_qos_add_requirement); +EXPORT_SYMBOL_GPL(pm_qos_add_request); /** - * pm_qos_update_requirement - modifies an existing qos request - * @pm_qos_class: identifies which list of qos request to us - * @name: identifies the request + * pm_qos_update_request - modifies an existing qos request + * @pm_qos_req : handle to list element holding a pm_qos request to use * @value: defines the qos request * - * Updates an existing qos requirement for the pm_qos_class of parameters along + * Updates an existing qos request for the pm_qos_class of parameters along * with updating the target pm_qos_class value. * - * If the named request isn't in the list then no change is made. + * Attempts are made to make this code callable on hot code paths. */ -int pm_qos_update_requirement(int pm_qos_class, char *name, s32 new_value) +void pm_qos_update_request(struct pm_qos_request_list *pm_qos_req, + s32 new_value) { unsigned long flags; - struct requirement_list *node; int pending_update = 0; + s32 temp; spin_lock_irqsave(&pm_qos_lock, flags); - list_for_each_entry(node, - &pm_qos_array[pm_qos_class]->requirements.list, list) { - if (strcmp(node->name, name) == 0) { - if (new_value == PM_QOS_DEFAULT_VALUE) - node->value = - pm_qos_array[pm_qos_class]->default_value; - else - node->value = new_value; - pending_update = 1; - break; - } + if (new_value == PM_QOS_DEFAULT_VALUE) + temp = pm_qos_array[pm_qos_req->pm_qos_class]->default_value; + else + temp = new_value; + + if (temp != pm_qos_req->value) { + pending_update = 1; + pm_qos_req->value = temp; } spin_unlock_irqrestore(&pm_qos_lock, flags); if (pending_update) - update_target(pm_qos_class); - - return 0; + update_target(pm_qos_req->pm_qos_class); } -EXPORT_SYMBOL_GPL(pm_qos_update_requirement); +EXPORT_SYMBOL_GPL(pm_qos_update_request); /** - * pm_qos_remove_requirement - modifies an existing qos request - * @pm_qos_class: identifies which list of qos request to us - * @name: identifies the request + * pm_qos_remove_request - modifies an existing qos request + * @pm_qos_req: handle to request list element * - * Will remove named qos request from pm_qos_class list of parameters and - * recompute the current target value for the pm_qos_class. + * Will remove pm qos request from the list of requests and + * recompute the current target value for the pm_qos_class. Call this + * on slow code paths. */ -void pm_qos_remove_requirement(int pm_qos_class, char *name) +void pm_qos_remove_request(struct pm_qos_request_list *pm_qos_req) { unsigned long flags; - struct requirement_list *node; - int pending_update = 0; + int qos_class; + + if (pm_qos_req == NULL) + return; + /* silent return to keep pcm code cleaner */ + qos_class = pm_qos_req->pm_qos_class; spin_lock_irqsave(&pm_qos_lock, flags); - list_for_each_entry(node, - &pm_qos_array[pm_qos_class]->requirements.list, list) { - if (strcmp(node->name, name) == 0) { - kfree(node->name); - list_del(&node->list); - kfree(node); - pending_update = 1; - break; - } - } + list_del(&pm_qos_req->list); + kfree(pm_qos_req); spin_unlock_irqrestore(&pm_qos_lock, flags); - if (pending_update) - update_target(pm_qos_class); + update_target(qos_class); } -EXPORT_SYMBOL_GPL(pm_qos_remove_requirement); +EXPORT_SYMBOL_GPL(pm_qos_remove_request); /** * pm_qos_add_notifier - sets notification entry for changes to target value @@ -313,7 +302,7 @@ EXPORT_SYMBOL_GPL(pm_qos_remove_requirement); * will register the notifier into a notification chain that gets called * upon changes to the pm_qos_class target value. */ - int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier) +int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier) { int retval; @@ -343,21 +332,16 @@ int pm_qos_remove_notifier(int pm_qos_class, struct notifier_block *notifier) } EXPORT_SYMBOL_GPL(pm_qos_remove_notifier); -#define PID_NAME_LEN 32 - static int pm_qos_power_open(struct inode *inode, struct file *filp) { - int ret; long pm_qos_class; - char name[PID_NAME_LEN]; pm_qos_class = find_pm_qos_object_by_minor(iminor(inode)); if (pm_qos_class >= 0) { - filp->private_data = (void *)pm_qos_class; - snprintf(name, PID_NAME_LEN, "process_%d", current->pid); - ret = pm_qos_add_requirement(pm_qos_class, name, - PM_QOS_DEFAULT_VALUE); - if (ret >= 0) + filp->private_data = (void *) pm_qos_add_request(pm_qos_class, + PM_QOS_DEFAULT_VALUE); + + if (filp->private_data) return 0; } return -EPERM; @@ -365,32 +349,40 @@ static int pm_qos_power_open(struct inode *inode, struct file *filp) static int pm_qos_power_release(struct inode *inode, struct file *filp) { - int pm_qos_class; - char name[PID_NAME_LEN]; + struct pm_qos_request_list *req; - pm_qos_class = (long)filp->private_data; - snprintf(name, PID_NAME_LEN, "process_%d", current->pid); - pm_qos_remove_requirement(pm_qos_class, name); + req = (struct pm_qos_request_list *)filp->private_data; + pm_qos_remove_request(req); return 0; } + static ssize_t pm_qos_power_write(struct file *filp, const char __user *buf, size_t count, loff_t *f_pos) { s32 value; - int pm_qos_class; - char name[PID_NAME_LEN]; - - pm_qos_class = (long)filp->private_data; - if (count != sizeof(s32)) + int x; + char ascii_value[11]; + struct pm_qos_request_list *pm_qos_req; + + if (count == sizeof(s32)) { + if (copy_from_user(&value, buf, sizeof(s32))) + return -EFAULT; + } else if (count == 11) { /* len('0x12345678/0') */ + if (copy_from_user(ascii_value, buf, 11)) + return -EFAULT; + x = sscanf(ascii_value, "%x", &value); + if (x != 1) + return -EINVAL; + pr_debug(KERN_ERR "%s, %d, 0x%x\n", ascii_value, x, value); + } else return -EINVAL; - if (copy_from_user(&value, buf, sizeof(s32))) - return -EFAULT; - snprintf(name, PID_NAME_LEN, "process_%d", current->pid); - pm_qos_update_requirement(pm_qos_class, name, value); - return sizeof(s32); + pm_qos_req = (struct pm_qos_request_list *)filp->private_data; + pm_qos_update_request(pm_qos_req, value); + + return count; } diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 4aefa6dc309..29de1965ff7 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -495,7 +495,7 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency) s32 beaconint_us; if (latency < 0) - latency = pm_qos_requirement(PM_QOS_NETWORK_LATENCY); + latency = pm_qos_request(PM_QOS_NETWORK_LATENCY); beaconint_us = ieee80211_tu_to_usec( found->vif.bss_conf.beacon_int); diff --git a/sound/core/pcm.c b/sound/core/pcm.c index 0d428d0896d..cbe815dfbdc 100644 --- a/sound/core/pcm.c +++ b/sound/core/pcm.c @@ -648,9 +648,6 @@ int snd_pcm_new_stream(struct snd_pcm *pcm, int stream, int substream_count) substream->number = idx; substream->stream = stream; sprintf(substream->name, "subdevice #%i", idx); - snprintf(substream->latency_id, sizeof(substream->latency_id), - "ALSA-PCM%d-%d%c%d", pcm->card->number, pcm->device, - (stream ? 'c' : 'p'), idx); substream->buffer_bytes_max = UINT_MAX; if (prev == NULL) pstr->substream = substream; diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c index 87288762403..605c86df71c 100644 --- a/sound/core/pcm_native.c +++ b/sound/core/pcm_native.c @@ -481,11 +481,13 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream, snd_pcm_timer_resolution_change(substream); runtime->status->state = SNDRV_PCM_STATE_SETUP; - pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, - substream->latency_id); + if (substream->latency_pm_qos_req) { + pm_qos_remove_request(substream->latency_pm_qos_req); + substream->latency_pm_qos_req = NULL; + } if ((usecs = period_to_usecs(runtime)) >= 0) - pm_qos_add_requirement(PM_QOS_CPU_DMA_LATENCY, - substream->latency_id, usecs); + substream->latency_pm_qos_req = pm_qos_add_request( + PM_QOS_CPU_DMA_LATENCY, usecs); return 0; _error: /* hardware might be unuseable from this time, @@ -540,8 +542,8 @@ static int snd_pcm_hw_free(struct snd_pcm_substream *substream) if (substream->ops->hw_free) result = substream->ops->hw_free(substream); runtime->status->state = SNDRV_PCM_STATE_OPEN; - pm_qos_remove_requirement(PM_QOS_CPU_DMA_LATENCY, - substream->latency_id); + pm_qos_remove_request(substream->latency_pm_qos_req); + substream->latency_pm_qos_req = NULL; return result; } -- cgit v1.2.3-70-g09d2 From ca0dbd86b12be9af7cda230890eb741d5cb8b624 Mon Sep 17 00:00:00 2001 From: Thadeu Lima de Souza Cascardo Date: Fri, 7 May 2010 16:52:26 -0300 Subject: doc: inode uses a mutex instead of a semaphore. Replace the introduced i_sem by an i_mutex in the filesystem locking documentation. This was introduced [1] after all occurrences were already replaced in the same text [2]. However, the term "inode semaphore" has not been replaced then, and it's replaced now. [1] afddba49d18f346e5cc2938b6ed7c512db18ca68 [2] a7bc02f4f47fd0e7860c6589f0ad000d1476f7a3 Signed-off-by: Thadeu Lima de Souza Cascardo Cc: Nick Piggin Cc: Artem Bityutskiy Cc: Randy Dunlap Cc: Christoph Hellwig Cc: Al Viro Signed-off-by: Jiri Kosina --- Documentation/filesystems/Locking | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index 06bbbed7120..af1608070cd 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking @@ -178,7 +178,7 @@ prototypes: locking rules: All except set_page_dirty may block - BKL PageLocked(page) i_sem + BKL PageLocked(page) i_mutex writepage: no yes, unlocks (see below) readpage: no yes, unlocks sync_page: no maybe @@ -429,7 +429,7 @@ check_flags: no implementations. If your fs is not using generic_file_llseek, you need to acquire and release the appropriate locks in your ->llseek(). For many filesystems, it is probably safe to acquire the inode -semaphore. Note some filesystems (i.e. remote ones) provide no +mutex. Note some filesystems (i.e. remote ones) provide no protection for i_size so you will need to use the BKL. Note: ext2_release() was *the* source of contention on fs-intensive -- cgit v1.2.3-70-g09d2 From a52357259680fe5368c2fabf5949209e231f2aa2 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Tue, 11 May 2010 17:12:33 +0200 Subject: x86/amd-iommu: Add amd_iommu=off command line option This patch adds a command line option to tell the AMD IOMMU driver to not initialize any IOMMU it finds. Signed-off-by: Joerg Roedel --- Documentation/kernel-parameters.txt | 2 ++ arch/x86/kernel/amd_iommu_init.c | 6 ++++++ 2 files changed, 8 insertions(+) (limited to 'Documentation') diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index 839b21b0699..0c6c56076d1 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -324,6 +324,8 @@ and is between 256 and 4096 characters. It is defined in the file they are unmapped. Otherwise they are flushed before they will be reused, which is a lot of faster + off - do not initialize any AMD IOMMU found in + the system amijoy.map= [HW,JOY] Amiga joystick support Map of devices attached to JOY0DAT and JOY1DAT diff --git a/arch/x86/kernel/amd_iommu_init.c b/arch/x86/kernel/amd_iommu_init.c index 6360abf993d..3bacb4d0844 100644 --- a/arch/x86/kernel/amd_iommu_init.c +++ b/arch/x86/kernel/amd_iommu_init.c @@ -120,6 +120,7 @@ struct ivmd_header { bool amd_iommu_dump; static int __initdata amd_iommu_detected; +static bool __initdata amd_iommu_disabled; u16 amd_iommu_last_bdf; /* largest PCI device id we have to handle */ @@ -1372,6 +1373,9 @@ void __init amd_iommu_detect(void) if (no_iommu || (iommu_detected && !gart_iommu_aperture)) return; + if (amd_iommu_disabled) + return; + if (acpi_table_parse("IVRS", early_amd_iommu_detect) == 0) { iommu_detected = 1; amd_iommu_detected = 1; @@ -1401,6 +1405,8 @@ static int __init parse_amd_iommu_options(char *str) for (; *str; ++str) { if (strncmp(str, "fullflush", 9) == 0) amd_iommu_unmap_flush = true; + if (strncmp(str, "off", 3) == 0) + amd_iommu_disabled = true; } return 1; -- cgit v1.2.3-70-g09d2 From 639b91a364fafea24fc1d2e8853c12ce45d4ceea Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Mon, 15 Mar 2010 22:39:27 +0800 Subject: [ARM] pxa: remove now un-used corgi_ssp.c and corgi_lcd.c The only use of corgi_ssp.c is corgi_ts.c, which is now deprecated and removed. Remove corgi_ssp.c and corgi_lcd.c and their relevant function declarations and data structures. Signed-off-by: Eric Miao Cc: Richard Purdie Cc: Pavel Machek --- Documentation/feature-removal-schedule.txt | 12 -- arch/arm/mach-pxa/Kconfig | 9 - arch/arm/mach-pxa/Makefile | 1 - arch/arm/mach-pxa/corgi_lcd.c | 288 ----------------------------- arch/arm/mach-pxa/corgi_ssp.c | 274 --------------------------- arch/arm/mach-pxa/include/mach/corgi.h | 1 - arch/arm/mach-pxa/sharpsl.h | 23 --- 7 files changed, 608 deletions(-) delete mode 100644 arch/arm/mach-pxa/corgi_lcd.c delete mode 100644 arch/arm/mach-pxa/corgi_ssp.c (limited to 'Documentation') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 05df0b7514b..6237d74be86 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -531,18 +531,6 @@ Who: Eric Miao ---------------------------- -What: corgi_ssp and corgi_ts driver -When: 2.6.35 -Files: arch/arm/mach-pxa/corgi_ssp.c, drivers/input/touchscreen/corgi_ts.c -Why: The corgi touchscreen is now deprecated in favour of the generic - ads7846.c driver. The noise reduction technique used in corgi_ts.c, - that's to wait till vsync before ADC sampling, is also integrated into - ads7846 driver now. Provided that the original driver is not generic - and is difficult to maintain, it will be removed later. -Who: Eric Miao - ----------------------------- - What: capifs When: February 2011 Files: drivers/isdn/capi/capifs.* diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig index 5b6ee46fa7f..089579fda6c 100644 --- a/arch/arm/mach-pxa/Kconfig +++ b/arch/arm/mach-pxa/Kconfig @@ -461,15 +461,6 @@ config SHARPSL_PM_MAX1111 select HWMON select SENSORS_MAX1111 -config CORGI_SSP_DEPRECATED - bool - select PXA_SSP - select PXA_SSP_LEGACY - help - This option will include corgi_ssp.c and corgi_lcd.c - that corgi_ts.c and other legacy drivers (corgi_bl.c - and sharpsl_pm.c) may depend on. - config MACH_POODLE bool "Enable Sharp SL-5600 (Poodle) Support" depends on PXA_SHARPSL diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile index 86bc87b7f2d..a83aff386fb 100644 --- a/arch/arm/mach-pxa/Makefile +++ b/arch/arm/mach-pxa/Makefile @@ -80,7 +80,6 @@ obj-$(CONFIG_MACH_PALMLD) += palmld.o obj-$(CONFIG_PALM_TREO) += palmtreo.o obj-$(CONFIG_PXA_SHARP_C7xx) += corgi.o sharpsl_pm.o corgi_pm.o obj-$(CONFIG_PXA_SHARP_Cxx00) += spitz.o sharpsl_pm.o spitz_pm.o -obj-$(CONFIG_CORGI_SSP_DEPRECATED) += corgi_ssp.o corgi_lcd.o obj-$(CONFIG_MACH_POODLE) += poodle.o obj-$(CONFIG_MACH_TOSA) += tosa.o obj-$(CONFIG_MACH_ICONTROL) += icontrol.o mxm8x10.o diff --git a/arch/arm/mach-pxa/corgi_lcd.c b/arch/arm/mach-pxa/corgi_lcd.c deleted file mode 100644 index d9b96319d49..00000000000 --- a/arch/arm/mach-pxa/corgi_lcd.c +++ /dev/null @@ -1,288 +0,0 @@ -/* - * linux/arch/arm/mach-pxa/corgi_lcd.c - * - * Corgi/Spitz LCD Specific Code - * - * Copyright (C) 2005 Richard Purdie - * - * Connectivity: - * Corgi - LCD to ATI Imageon w100 (Wallaby) - * Spitz - LCD to PXA Framebuffer - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "generic.h" - -/* Register Addresses */ -#define RESCTL_ADRS 0x00 -#define PHACTRL_ADRS 0x01 -#define DUTYCTRL_ADRS 0x02 -#define POWERREG0_ADRS 0x03 -#define POWERREG1_ADRS 0x04 -#define GPOR3_ADRS 0x05 -#define PICTRL_ADRS 0x06 -#define POLCTRL_ADRS 0x07 - -/* Register Bit Definitions */ -#define RESCTL_QVGA 0x01 -#define RESCTL_VGA 0x00 - -#define POWER1_VW_ON 0x01 /* VW Supply FET ON */ -#define POWER1_GVSS_ON 0x02 /* GVSS(-8V) Power Supply ON */ -#define POWER1_VDD_ON 0x04 /* VDD(8V),SVSS(-4V) Power Supply ON */ - -#define POWER1_VW_OFF 0x00 /* VW Supply FET OFF */ -#define POWER1_GVSS_OFF 0x00 /* GVSS(-8V) Power Supply OFF */ -#define POWER1_VDD_OFF 0x00 /* VDD(8V),SVSS(-4V) Power Supply OFF */ - -#define POWER0_COM_DCLK 0x01 /* COM Voltage DC Bias DAC Serial Data Clock */ -#define POWER0_COM_DOUT 0x02 /* COM Voltage DC Bias DAC Serial Data Out */ -#define POWER0_DAC_ON 0x04 /* DAC Power Supply ON */ -#define POWER0_COM_ON 0x08 /* COM Power Supply ON */ -#define POWER0_VCC5_ON 0x10 /* VCC5 Power Supply ON */ - -#define POWER0_DAC_OFF 0x00 /* DAC Power Supply OFF */ -#define POWER0_COM_OFF 0x00 /* COM Power Supply OFF */ -#define POWER0_VCC5_OFF 0x00 /* VCC5 Power Supply OFF */ - -#define PICTRL_INIT_STATE 0x01 -#define PICTRL_INIOFF 0x02 -#define PICTRL_POWER_DOWN 0x04 -#define PICTRL_COM_SIGNAL_OFF 0x08 -#define PICTRL_DAC_SIGNAL_OFF 0x10 - -#define POLCTRL_SYNC_POL_FALL 0x01 -#define POLCTRL_EN_POL_FALL 0x02 -#define POLCTRL_DATA_POL_FALL 0x04 -#define POLCTRL_SYNC_ACT_H 0x08 -#define POLCTRL_EN_ACT_L 0x10 - -#define POLCTRL_SYNC_POL_RISE 0x00 -#define POLCTRL_EN_POL_RISE 0x00 -#define POLCTRL_DATA_POL_RISE 0x00 -#define POLCTRL_SYNC_ACT_L 0x00 -#define POLCTRL_EN_ACT_H 0x00 - -#define PHACTRL_PHASE_MANUAL 0x01 -#define DEFAULT_PHAD_QVGA (9) -#define DEFAULT_COMADJ (125) - -/* - * This is only a psuedo I2C interface. We can't use the standard kernel - * routines as the interface is write only. We just assume the data is acked... - */ -static void lcdtg_ssp_i2c_send(u8 data) -{ - corgi_ssp_lcdtg_send(POWERREG0_ADRS, data); - udelay(10); -} - -static void lcdtg_i2c_send_bit(u8 data) -{ - lcdtg_ssp_i2c_send(data); - lcdtg_ssp_i2c_send(data | POWER0_COM_DCLK); - lcdtg_ssp_i2c_send(data); -} - -static void lcdtg_i2c_send_start(u8 base) -{ - lcdtg_ssp_i2c_send(base | POWER0_COM_DCLK | POWER0_COM_DOUT); - lcdtg_ssp_i2c_send(base | POWER0_COM_DCLK); - lcdtg_ssp_i2c_send(base); -} - -static void lcdtg_i2c_send_stop(u8 base) -{ - lcdtg_ssp_i2c_send(base); - lcdtg_ssp_i2c_send(base | POWER0_COM_DCLK); - lcdtg_ssp_i2c_send(base | POWER0_COM_DCLK | POWER0_COM_DOUT); -} - -static void lcdtg_i2c_send_byte(u8 base, u8 data) -{ - int i; - for (i = 0; i < 8; i++) { - if (data & 0x80) - lcdtg_i2c_send_bit(base | POWER0_COM_DOUT); - else - lcdtg_i2c_send_bit(base); - data <<= 1; - } -} - -static void lcdtg_i2c_wait_ack(u8 base) -{ - lcdtg_i2c_send_bit(base); -} - -static void lcdtg_set_common_voltage(u8 base_data, u8 data) -{ - /* Set Common Voltage to M62332FP via I2C */ - lcdtg_i2c_send_start(base_data); - lcdtg_i2c_send_byte(base_data, 0x9c); - lcdtg_i2c_wait_ack(base_data); - lcdtg_i2c_send_byte(base_data, 0x00); - lcdtg_i2c_wait_ack(base_data); - lcdtg_i2c_send_byte(base_data, data); - lcdtg_i2c_wait_ack(base_data); - lcdtg_i2c_send_stop(base_data); -} - -/* Set Phase Adjust */ -static void lcdtg_set_phadadj(int mode) -{ - int adj; - switch(mode) { - case 480: - case 640: - /* Setting for VGA */ - adj = sharpsl_param.phadadj; - if (adj < 0) { - adj = PHACTRL_PHASE_MANUAL; - } else { - adj = ((adj & 0x0f) << 1) | PHACTRL_PHASE_MANUAL; - } - break; - case 240: - case 320: - default: - /* Setting for QVGA */ - adj = (DEFAULT_PHAD_QVGA << 1) | PHACTRL_PHASE_MANUAL; - break; - } - - corgi_ssp_lcdtg_send(PHACTRL_ADRS, adj); -} - -static int lcd_inited; - -void corgi_lcdtg_hw_init(int mode) -{ - if (!lcd_inited) { - int comadj; - - /* Initialize Internal Logic & Port */ - corgi_ssp_lcdtg_send(PICTRL_ADRS, PICTRL_POWER_DOWN | PICTRL_INIOFF | PICTRL_INIT_STATE - | PICTRL_COM_SIGNAL_OFF | PICTRL_DAC_SIGNAL_OFF); - - corgi_ssp_lcdtg_send(POWERREG0_ADRS, POWER0_COM_DCLK | POWER0_COM_DOUT | POWER0_DAC_OFF - | POWER0_COM_OFF | POWER0_VCC5_OFF); - - corgi_ssp_lcdtg_send(POWERREG1_ADRS, POWER1_VW_OFF | POWER1_GVSS_OFF | POWER1_VDD_OFF); - - /* VDD(+8V), SVSS(-4V) ON */ - corgi_ssp_lcdtg_send(POWERREG1_ADRS, POWER1_VW_OFF | POWER1_GVSS_OFF | POWER1_VDD_ON); - mdelay(3); - - /* DAC ON */ - corgi_ssp_lcdtg_send(POWERREG0_ADRS, POWER0_COM_DCLK | POWER0_COM_DOUT | POWER0_DAC_ON - | POWER0_COM_OFF | POWER0_VCC5_OFF); - - /* INIB = H, INI = L */ - /* PICTL[0] = H , PICTL[1] = PICTL[2] = PICTL[4] = L */ - corgi_ssp_lcdtg_send(PICTRL_ADRS, PICTRL_INIT_STATE | PICTRL_COM_SIGNAL_OFF); - - /* Set Common Voltage */ - comadj = sharpsl_param.comadj; - if (comadj < 0) - comadj = DEFAULT_COMADJ; - lcdtg_set_common_voltage((POWER0_DAC_ON | POWER0_COM_OFF | POWER0_VCC5_OFF), comadj); - - /* VCC5 ON, DAC ON */ - corgi_ssp_lcdtg_send(POWERREG0_ADRS, POWER0_COM_DCLK | POWER0_COM_DOUT | POWER0_DAC_ON | - POWER0_COM_OFF | POWER0_VCC5_ON); - - /* GVSS(-8V) ON, VDD ON */ - corgi_ssp_lcdtg_send(POWERREG1_ADRS, POWER1_VW_OFF | POWER1_GVSS_ON | POWER1_VDD_ON); - mdelay(2); - - /* COM SIGNAL ON (PICTL[3] = L) */ - corgi_ssp_lcdtg_send(PICTRL_ADRS, PICTRL_INIT_STATE); - - /* COM ON, DAC ON, VCC5_ON */ - corgi_ssp_lcdtg_send(POWERREG0_ADRS, POWER0_COM_DCLK | POWER0_COM_DOUT | POWER0_DAC_ON - | POWER0_COM_ON | POWER0_VCC5_ON); - - /* VW ON, GVSS ON, VDD ON */ - corgi_ssp_lcdtg_send(POWERREG1_ADRS, POWER1_VW_ON | POWER1_GVSS_ON | POWER1_VDD_ON); - - /* Signals output enable */ - corgi_ssp_lcdtg_send(PICTRL_ADRS, 0); - - /* Set Phase Adjust */ - lcdtg_set_phadadj(mode); - - /* Initialize for Input Signals from ATI */ - corgi_ssp_lcdtg_send(POLCTRL_ADRS, POLCTRL_SYNC_POL_RISE | POLCTRL_EN_POL_RISE - | POLCTRL_DATA_POL_RISE | POLCTRL_SYNC_ACT_L | POLCTRL_EN_ACT_H); - udelay(1000); - - lcd_inited=1; - } else { - lcdtg_set_phadadj(mode); - } - - switch(mode) { - case 480: - case 640: - /* Set Lcd Resolution (VGA) */ - corgi_ssp_lcdtg_send(RESCTL_ADRS, RESCTL_VGA); - break; - case 240: - case 320: - default: - /* Set Lcd Resolution (QVGA) */ - corgi_ssp_lcdtg_send(RESCTL_ADRS, RESCTL_QVGA); - break; - } -} - -void corgi_lcdtg_suspend(void) -{ - /* 60Hz x 2 frame = 16.7msec x 2 = 33.4 msec */ - mdelay(34); - - /* (1)VW OFF */ - corgi_ssp_lcdtg_send(POWERREG1_ADRS, POWER1_VW_OFF | POWER1_GVSS_ON | POWER1_VDD_ON); - - /* (2)COM OFF */ - corgi_ssp_lcdtg_send(PICTRL_ADRS, PICTRL_COM_SIGNAL_OFF); - corgi_ssp_lcdtg_send(POWERREG0_ADRS, POWER0_DAC_ON | POWER0_COM_OFF | POWER0_VCC5_ON); - - /* (3)Set Common Voltage Bias 0V */ - lcdtg_set_common_voltage(POWER0_DAC_ON | POWER0_COM_OFF | POWER0_VCC5_ON, 0); - - /* (4)GVSS OFF */ - corgi_ssp_lcdtg_send(POWERREG1_ADRS, POWER1_VW_OFF | POWER1_GVSS_OFF | POWER1_VDD_ON); - - /* (5)VCC5 OFF */ - corgi_ssp_lcdtg_send(POWERREG0_ADRS, POWER0_DAC_ON | POWER0_COM_OFF | POWER0_VCC5_OFF); - - /* (6)Set PDWN, INIOFF, DACOFF */ - corgi_ssp_lcdtg_send(PICTRL_ADRS, PICTRL_INIOFF | PICTRL_DAC_SIGNAL_OFF | - PICTRL_POWER_DOWN | PICTRL_COM_SIGNAL_OFF); - - /* (7)DAC OFF */ - corgi_ssp_lcdtg_send(POWERREG0_ADRS, POWER0_DAC_OFF | POWER0_COM_OFF | POWER0_VCC5_OFF); - - /* (8)VDD OFF */ - corgi_ssp_lcdtg_send(POWERREG1_ADRS, POWER1_VW_OFF | POWER1_GVSS_OFF | POWER1_VDD_OFF); - - lcd_inited = 0; -} - diff --git a/arch/arm/mach-pxa/corgi_ssp.c b/arch/arm/mach-pxa/corgi_ssp.c deleted file mode 100644 index 9347254f8bc..00000000000 --- a/arch/arm/mach-pxa/corgi_ssp.c +++ /dev/null @@ -1,274 +0,0 @@ -/* - * SSP control code for Sharp Corgi devices - * - * Copyright (c) 2004-2005 Richard Purdie - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include -#include "sharpsl.h" - -static DEFINE_SPINLOCK(corgi_ssp_lock); -static struct ssp_dev corgi_ssp_dev; -static struct ssp_state corgi_ssp_state; -static struct corgissp_machinfo *ssp_machinfo; - -/* - * There are three devices connected to the SSP interface: - * 1. A touchscreen controller (TI ADS7846 compatible) - * 2. An LCD controller (with some Backlight functionality) - * 3. A battery monitoring IC (Maxim MAX1111) - * - * Each device uses a different speed/mode of communication. - * - * The touchscreen is very sensitive and the most frequently used - * so the port is left configured for this. - * - * Devices are selected using Chip Selects on GPIOs. - */ - -/* - * ADS7846 Routines - */ -unsigned long corgi_ssp_ads7846_putget(ulong data) -{ - unsigned long flag; - u32 ret = 0; - - spin_lock_irqsave(&corgi_ssp_lock, flag); - if (ssp_machinfo->cs_ads7846 >= 0) - GPCR(ssp_machinfo->cs_ads7846) = GPIO_bit(ssp_machinfo->cs_ads7846); - - ssp_write_word(&corgi_ssp_dev,data); - ssp_read_word(&corgi_ssp_dev, &ret); - - if (ssp_machinfo->cs_ads7846 >= 0) - GPSR(ssp_machinfo->cs_ads7846) = GPIO_bit(ssp_machinfo->cs_ads7846); - spin_unlock_irqrestore(&corgi_ssp_lock, flag); - - return ret; -} - -/* - * NOTE: These functions should always be called in interrupt context - * and use the _lock and _unlock functions. They are very time sensitive. - */ -void corgi_ssp_ads7846_lock(void) -{ - spin_lock(&corgi_ssp_lock); - if (ssp_machinfo->cs_ads7846 >= 0) - GPCR(ssp_machinfo->cs_ads7846) = GPIO_bit(ssp_machinfo->cs_ads7846); -} - -void corgi_ssp_ads7846_unlock(void) -{ - if (ssp_machinfo->cs_ads7846 >= 0) - GPSR(ssp_machinfo->cs_ads7846) = GPIO_bit(ssp_machinfo->cs_ads7846); - spin_unlock(&corgi_ssp_lock); -} - -void corgi_ssp_ads7846_put(ulong data) -{ - ssp_write_word(&corgi_ssp_dev,data); -} - -unsigned long corgi_ssp_ads7846_get(void) -{ - u32 ret = 0; - ssp_read_word(&corgi_ssp_dev, &ret); - return ret; -} - -EXPORT_SYMBOL(corgi_ssp_ads7846_putget); -EXPORT_SYMBOL(corgi_ssp_ads7846_lock); -EXPORT_SYMBOL(corgi_ssp_ads7846_unlock); -EXPORT_SYMBOL(corgi_ssp_ads7846_put); -EXPORT_SYMBOL(corgi_ssp_ads7846_get); - - -/* - * LCD/Backlight Routines - */ -unsigned long corgi_ssp_dac_put(ulong data) -{ - unsigned long flag, sscr1 = SSCR1_SPH; - u32 tmp; - - spin_lock_irqsave(&corgi_ssp_lock, flag); - - if (machine_is_spitz() || machine_is_akita() || machine_is_borzoi()) - sscr1 = 0; - - ssp_disable(&corgi_ssp_dev); - ssp_config(&corgi_ssp_dev, (SSCR0_Motorola | (SSCR0_DSS & 0x07 )), sscr1, 0, SSCR0_SerClkDiv(ssp_machinfo->clk_lcdcon)); - ssp_enable(&corgi_ssp_dev); - - if (ssp_machinfo->cs_lcdcon >= 0) - GPCR(ssp_machinfo->cs_lcdcon) = GPIO_bit(ssp_machinfo->cs_lcdcon); - ssp_write_word(&corgi_ssp_dev,data); - /* Read null data back from device to prevent SSP overflow */ - ssp_read_word(&corgi_ssp_dev, &tmp); - if (ssp_machinfo->cs_lcdcon >= 0) - GPSR(ssp_machinfo->cs_lcdcon) = GPIO_bit(ssp_machinfo->cs_lcdcon); - - ssp_disable(&corgi_ssp_dev); - ssp_config(&corgi_ssp_dev, (SSCR0_National | (SSCR0_DSS & 0x0b )), 0, 0, SSCR0_SerClkDiv(ssp_machinfo->clk_ads7846)); - ssp_enable(&corgi_ssp_dev); - - spin_unlock_irqrestore(&corgi_ssp_lock, flag); - - return 0; -} - -void corgi_ssp_lcdtg_send(u8 adrs, u8 data) -{ - corgi_ssp_dac_put(((adrs & 0x07) << 5) | (data & 0x1f)); -} - -void corgi_ssp_blduty_set(int duty) -{ - corgi_ssp_lcdtg_send(0x02,duty); -} - -EXPORT_SYMBOL(corgi_ssp_lcdtg_send); -EXPORT_SYMBOL(corgi_ssp_blduty_set); - -/* - * Max1111 Routines - */ -int corgi_ssp_max1111_get(ulong data) -{ - unsigned long flag; - long voltage = 0, voltage1 = 0, voltage2 = 0; - - spin_lock_irqsave(&corgi_ssp_lock, flag); - if (ssp_machinfo->cs_max1111 >= 0) - GPCR(ssp_machinfo->cs_max1111) = GPIO_bit(ssp_machinfo->cs_max1111); - ssp_disable(&corgi_ssp_dev); - ssp_config(&corgi_ssp_dev, (SSCR0_Motorola | (SSCR0_DSS & 0x07 )), 0, 0, SSCR0_SerClkDiv(ssp_machinfo->clk_max1111)); - ssp_enable(&corgi_ssp_dev); - - udelay(1); - - /* TB1/RB1 */ - ssp_write_word(&corgi_ssp_dev,data); - ssp_read_word(&corgi_ssp_dev, (u32*)&voltage1); /* null read */ - - /* TB12/RB2 */ - ssp_write_word(&corgi_ssp_dev,0); - ssp_read_word(&corgi_ssp_dev, (u32*)&voltage1); - - /* TB13/RB3*/ - ssp_write_word(&corgi_ssp_dev,0); - ssp_read_word(&corgi_ssp_dev, (u32*)&voltage2); - - ssp_disable(&corgi_ssp_dev); - ssp_config(&corgi_ssp_dev, (SSCR0_National | (SSCR0_DSS & 0x0b )), 0, 0, SSCR0_SerClkDiv(ssp_machinfo->clk_ads7846)); - ssp_enable(&corgi_ssp_dev); - if (ssp_machinfo->cs_max1111 >= 0) - GPSR(ssp_machinfo->cs_max1111) = GPIO_bit(ssp_machinfo->cs_max1111); - spin_unlock_irqrestore(&corgi_ssp_lock, flag); - - if (voltage1 & 0xc0 || voltage2 & 0x3f) - voltage = -1; - else - voltage = ((voltage1 << 2) & 0xfc) | ((voltage2 >> 6) & 0x03); - - return voltage; -} - -EXPORT_SYMBOL(corgi_ssp_max1111_get); - -/* - * Support Routines - */ - -void __init corgi_ssp_set_machinfo(struct corgissp_machinfo *machinfo) -{ - ssp_machinfo = machinfo; -} - -static int __devinit corgi_ssp_probe(struct platform_device *dev) -{ - int ret; - - /* Chip Select - Disable All */ - if (ssp_machinfo->cs_lcdcon >= 0) - pxa_gpio_mode(ssp_machinfo->cs_lcdcon | GPIO_OUT | GPIO_DFLT_HIGH); - if (ssp_machinfo->cs_max1111 >= 0) - pxa_gpio_mode(ssp_machinfo->cs_max1111 | GPIO_OUT | GPIO_DFLT_HIGH); - if (ssp_machinfo->cs_ads7846 >= 0) - pxa_gpio_mode(ssp_machinfo->cs_ads7846 | GPIO_OUT | GPIO_DFLT_HIGH); - - ret = ssp_init(&corgi_ssp_dev, ssp_machinfo->port, 0); - - if (ret) - printk(KERN_ERR "Unable to register SSP handler!\n"); - else { - ssp_disable(&corgi_ssp_dev); - ssp_config(&corgi_ssp_dev, (SSCR0_National | (SSCR0_DSS & 0x0b )), 0, 0, SSCR0_SerClkDiv(ssp_machinfo->clk_ads7846)); - ssp_enable(&corgi_ssp_dev); - } - - return ret; -} - -static int corgi_ssp_remove(struct platform_device *dev) -{ - ssp_exit(&corgi_ssp_dev); - return 0; -} - -static int corgi_ssp_suspend(struct platform_device *dev, pm_message_t state) -{ - ssp_flush(&corgi_ssp_dev); - ssp_save_state(&corgi_ssp_dev,&corgi_ssp_state); - - return 0; -} - -static int corgi_ssp_resume(struct platform_device *dev) -{ - if (ssp_machinfo->cs_lcdcon >= 0) - GPSR(ssp_machinfo->cs_lcdcon) = GPIO_bit(ssp_machinfo->cs_lcdcon); /* High - Disable LCD Control/Timing Gen */ - if (ssp_machinfo->cs_max1111 >= 0) - GPSR(ssp_machinfo->cs_max1111) = GPIO_bit(ssp_machinfo->cs_max1111); /* High - Disable MAX1111*/ - if (ssp_machinfo->cs_ads7846 >= 0) - GPSR(ssp_machinfo->cs_ads7846) = GPIO_bit(ssp_machinfo->cs_ads7846); /* High - Disable ADS7846*/ - ssp_restore_state(&corgi_ssp_dev,&corgi_ssp_state); - ssp_enable(&corgi_ssp_dev); - - return 0; -} - -static struct platform_driver corgissp_driver = { - .probe = corgi_ssp_probe, - .remove = corgi_ssp_remove, - .suspend = corgi_ssp_suspend, - .resume = corgi_ssp_resume, - .driver = { - .name = "corgi-ssp", - }, -}; - -int __init corgi_ssp_init(void) -{ - return platform_driver_register(&corgissp_driver); -} - -arch_initcall(corgi_ssp_init); diff --git a/arch/arm/mach-pxa/include/mach/corgi.h b/arch/arm/mach-pxa/include/mach/corgi.h index 7239281788d..585970ef08c 100644 --- a/arch/arm/mach-pxa/include/mach/corgi.h +++ b/arch/arm/mach-pxa/include/mach/corgi.h @@ -113,7 +113,6 @@ * Shared data structures */ extern struct platform_device corgiscoop_device; -extern struct platform_device corgissp_device; #endif /* __ASM_ARCH_CORGI_H */ diff --git a/arch/arm/mach-pxa/sharpsl.h b/arch/arm/mach-pxa/sharpsl.h index 1439785d397..0cc1203c5be 100644 --- a/arch/arm/mach-pxa/sharpsl.h +++ b/arch/arm/mach-pxa/sharpsl.h @@ -9,29 +9,6 @@ #include -/* - * SharpSL SSP Driver - */ -struct corgissp_machinfo { - int port; - int cs_lcdcon; - int cs_ads7846; - int cs_max1111; - int clk_lcdcon; - int clk_ads7846; - int clk_max1111; -}; - -void corgi_ssp_set_machinfo(struct corgissp_machinfo *machinfo); - - -/* - * SharpSL/Corgi LCD Driver - */ -void corgi_lcdtg_suspend(void); -void corgi_lcdtg_hw_init(int mode); - - /* * SharpSL Battery/PM Driver */ -- cgit v1.2.3-70-g09d2 From 25646d70a0d386ab923a189f9790aeae3eb4f1b5 Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Tue, 27 Apr 2010 14:50:54 +0800 Subject: input: remove obsolete {corgi,spitz,tosa}kbd.c Signed-off-by: Eric Miao --- Documentation/feature-removal-schedule.txt | 11 - drivers/input/keyboard/Kconfig | 38 --- drivers/input/keyboard/Makefile | 3 - drivers/input/keyboard/corgikbd.c | 414 ------------------------ drivers/input/keyboard/spitzkbd.c | 496 ----------------------------- drivers/input/keyboard/tosakbd.c | 431 ------------------------- 6 files changed, 1393 deletions(-) delete mode 100644 drivers/input/keyboard/corgikbd.c delete mode 100644 drivers/input/keyboard/spitzkbd.c delete mode 100644 drivers/input/keyboard/tosakbd.c (limited to 'Documentation') diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index 6237d74be86..a5e381185de 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -520,17 +520,6 @@ Who: Hans de Goede ---------------------------- -What: corgikbd, spitzkbd, tosakbd driver -When: 2.6.35 -Files: drivers/input/keyboard/{corgi,spitz,tosa}kbd.c -Why: We now have a generic GPIO based matrix keyboard driver that - are fully capable of handling all the keys on these devices. - The original drivers manipulate the GPIO registers directly - and so are difficult to maintain. -Who: Eric Miao - ----------------------------- - What: capifs When: February 2011 Files: drivers/isdn/capi/capifs.* diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig index a74ee121f51..a8293388d01 100644 --- a/drivers/input/keyboard/Kconfig +++ b/drivers/input/keyboard/Kconfig @@ -143,19 +143,6 @@ config KEYBOARD_BFIN To compile this driver as a module, choose M here: the module will be called bf54x-keys. -config KEYBOARD_CORGI - tristate "Corgi keyboard (deprecated)" - depends on PXA_SHARPSL - help - Say Y here to enable the keyboard on the Sharp Zaurus SL-C7xx - series of PDAs. - - This driver is now deprecated, use generic GPIO based matrix - keyboard driver instead. - - To compile this driver as a module, choose M here: the - module will be called corgikbd. - config KEYBOARD_LKKBD tristate "DECstation/VAXstation LK201/LK401 keyboard" select SERIO @@ -339,19 +326,6 @@ config KEYBOARD_PXA930_ROTARY To compile this driver as a module, choose M here: the module will be called pxa930_rotary. -config KEYBOARD_SPITZ - tristate "Spitz keyboard (deprecated)" - depends on PXA_SHARPSL - help - Say Y here to enable the keyboard on the Sharp Zaurus SL-C1000, - SL-C3000 and Sl-C3100 series of PDAs. - - This driver is now deprecated, use generic GPIO based matrix - keyboard driver instead. - - To compile this driver as a module, choose M here: the - module will be called spitzkbd. - config KEYBOARD_STOWAWAY tristate "Stowaway keyboard" select SERIO @@ -414,18 +388,6 @@ config KEYBOARD_TWL4030 To compile this driver as a module, choose M here: the module will be called twl4030_keypad. -config KEYBOARD_TOSA - tristate "Tosa keyboard (deprecated)" - depends on MACH_TOSA - help - Say Y here to enable the keyboard on the Sharp Zaurus SL-6000x (Tosa) - - This driver is now deprecated, use generic GPIO based matrix - keyboard driver instead. - - To compile this driver as a module, choose M here: the - module will be called tosakbd. - config KEYBOARD_XTKBD tristate "XT keyboard" select SERIO diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile index 706c6b5ed5f..9a74127e4d1 100644 --- a/drivers/input/keyboard/Makefile +++ b/drivers/input/keyboard/Makefile @@ -11,7 +11,6 @@ obj-$(CONFIG_KEYBOARD_AMIGA) += amikbd.o obj-$(CONFIG_KEYBOARD_ATARI) += atakbd.o obj-$(CONFIG_KEYBOARD_ATKBD) += atkbd.o obj-$(CONFIG_KEYBOARD_BFIN) += bf54x-keys.o -obj-$(CONFIG_KEYBOARD_CORGI) += corgikbd.o obj-$(CONFIG_KEYBOARD_DAVINCI) += davinci_keyscan.o obj-$(CONFIG_KEYBOARD_EP93XX) += ep93xx_keypad.o obj-$(CONFIG_KEYBOARD_GPIO) += gpio_keys.o @@ -33,10 +32,8 @@ obj-$(CONFIG_KEYBOARD_PXA27x) += pxa27x_keypad.o obj-$(CONFIG_KEYBOARD_PXA930_ROTARY) += pxa930_rotary.o obj-$(CONFIG_KEYBOARD_QT2160) += qt2160.o obj-$(CONFIG_KEYBOARD_SH_KEYSC) += sh_keysc.o -obj-$(CONFIG_KEYBOARD_SPITZ) += spitzkbd.o obj-$(CONFIG_KEYBOARD_STOWAWAY) += stowaway.o obj-$(CONFIG_KEYBOARD_SUNKBD) += sunkbd.o -obj-$(CONFIG_KEYBOARD_TOSA) += tosakbd.o obj-$(CONFIG_KEYBOARD_TWL4030) += twl4030_keypad.o obj-$(CONFIG_KEYBOARD_XTKBD) += xtkbd.o obj-$(CONFIG_KEYBOARD_W90P910) += w90p910_keypad.o diff --git a/drivers/input/keyboard/corgikbd.c b/drivers/input/keyboard/corgikbd.c deleted file mode 100644 index 634af6a8e6b..00000000000 --- a/drivers/input/keyboard/corgikbd.c +++ /dev/null @@ -1,414 +0,0 @@ -/* - * Keyboard driver for Sharp Corgi models (SL-C7xx) - * - * Copyright (c) 2004-2005 Richard Purdie - * - * Based on xtkbd.c/locomkbd.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#define KB_ROWS 8 -#define KB_COLS 12 -#define KB_ROWMASK(r) (1 << (r)) -#define SCANCODE(r,c) ( ((r)<<4) + (c) + 1 ) -/* zero code, 124 scancodes */ -#define NR_SCANCODES ( SCANCODE(KB_ROWS-1,KB_COLS-1) +1 +1 ) - -#define SCAN_INTERVAL (50) /* ms */ -#define HINGE_SCAN_INTERVAL (250) /* ms */ - -#define CORGI_KEY_CALENDER KEY_F1 -#define CORGI_KEY_ADDRESS KEY_F2 -#define CORGI_KEY_FN KEY_F3 -#define CORGI_KEY_CANCEL KEY_F4 -#define CORGI_KEY_OFF KEY_SUSPEND -#define CORGI_KEY_EXOK KEY_F5 -#define CORGI_KEY_EXCANCEL KEY_F6 -#define CORGI_KEY_EXJOGDOWN KEY_F7 -#define CORGI_KEY_EXJOGUP KEY_F8 -#define CORGI_KEY_JAP1 KEY_LEFTCTRL -#define CORGI_KEY_JAP2 KEY_LEFTALT -#define CORGI_KEY_MAIL KEY_F10 -#define CORGI_KEY_OK KEY_F11 -#define CORGI_KEY_MENU KEY_F12 - -static unsigned char corgikbd_keycode[NR_SCANCODES] = { - 0, /* 0 */ - 0, KEY_1, KEY_3, KEY_5, KEY_6, KEY_7, KEY_9, KEY_0, KEY_BACKSPACE, 0, 0, 0, 0, 0, 0, 0, /* 1-16 */ - 0, KEY_2, KEY_4, KEY_R, KEY_Y, KEY_8, KEY_I, KEY_O, KEY_P, 0, 0, 0, 0, 0, 0, 0, /* 17-32 */ - KEY_TAB, KEY_Q, KEY_E, KEY_T, KEY_G, KEY_U, KEY_J, KEY_K, 0, 0, 0, 0, 0, 0, 0, 0, /* 33-48 */ - CORGI_KEY_CALENDER, KEY_W, KEY_S, KEY_F, KEY_V, KEY_H, KEY_M, KEY_L, 0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, /* 49-64 */ - CORGI_KEY_ADDRESS, KEY_A, KEY_D, KEY_C, KEY_B, KEY_N, KEY_DOT, 0, KEY_ENTER, 0, KEY_LEFTSHIFT, 0, 0, 0, 0, 0, /* 65-80 */ - CORGI_KEY_MAIL, KEY_Z, KEY_X, KEY_MINUS, KEY_SPACE, KEY_COMMA, 0, KEY_UP, 0, 0, 0, CORGI_KEY_FN, 0, 0, 0, 0, /* 81-96 */ - KEY_SYSRQ, CORGI_KEY_JAP1, CORGI_KEY_JAP2, CORGI_KEY_CANCEL, CORGI_KEY_OK, CORGI_KEY_MENU, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0, 0, 0, 0, /* 97-112 */ - CORGI_KEY_OFF, CORGI_KEY_EXOK, CORGI_KEY_EXCANCEL, CORGI_KEY_EXJOGDOWN, CORGI_KEY_EXJOGUP, 0, 0, 0, 0, 0, 0, 0, /* 113-124 */ -}; - - -struct corgikbd { - unsigned char keycode[ARRAY_SIZE(corgikbd_keycode)]; - struct input_dev *input; - - spinlock_t lock; - struct timer_list timer; - struct timer_list htimer; - - unsigned int suspended; - unsigned long suspend_jiffies; -}; - -#define KB_DISCHARGE_DELAY 10 -#define KB_ACTIVATE_DELAY 10 - -/* Helper functions for reading the keyboard matrix - * Note: We should really be using the generic gpio functions to alter - * GPDR but it requires a function call per GPIO bit which is - * excessive when we need to access 12 bits at once, multiple times. - * These functions must be called within local_irq_save()/local_irq_restore() - * or similar. - */ -static inline void corgikbd_discharge_all(void) -{ - /* STROBE All HiZ */ - GPCR2 = CORGI_GPIO_ALL_STROBE_BIT; - GPDR2 &= ~CORGI_GPIO_ALL_STROBE_BIT; -} - -static inline void corgikbd_activate_all(void) -{ - /* STROBE ALL -> High */ - GPSR2 = CORGI_GPIO_ALL_STROBE_BIT; - GPDR2 |= CORGI_GPIO_ALL_STROBE_BIT; - - udelay(KB_DISCHARGE_DELAY); - - /* Clear any interrupts we may have triggered when altering the GPIO lines */ - GEDR1 = CORGI_GPIO_HIGH_SENSE_BIT; - GEDR2 = CORGI_GPIO_LOW_SENSE_BIT; -} - -static inline void corgikbd_activate_col(int col) -{ - /* STROBE col -> High, not col -> HiZ */ - GPSR2 = CORGI_GPIO_STROBE_BIT(col); - GPDR2 = (GPDR2 & ~CORGI_GPIO_ALL_STROBE_BIT) | CORGI_GPIO_STROBE_BIT(col); -} - -static inline void corgikbd_reset_col(int col) -{ - /* STROBE col -> Low */ - GPCR2 = CORGI_GPIO_STROBE_BIT(col); - /* STROBE col -> out, not col -> HiZ */ - GPDR2 = (GPDR2 & ~CORGI_GPIO_ALL_STROBE_BIT) | CORGI_GPIO_STROBE_BIT(col); -} - -#define GET_ROWS_STATUS(c) (((GPLR1 & CORGI_GPIO_HIGH_SENSE_BIT) >> CORGI_GPIO_HIGH_SENSE_RSHIFT) | ((GPLR2 & CORGI_GPIO_LOW_SENSE_BIT) << CORGI_GPIO_LOW_SENSE_LSHIFT)) - -/* - * The corgi keyboard only generates interrupts when a key is pressed. - * When a key is pressed, we enable a timer which then scans the - * keyboard to detect when the key is released. - */ - -/* Scan the hardware keyboard and push any changes up through the input layer */ -static void corgikbd_scankeyboard(struct corgikbd *corgikbd_data) -{ - unsigned int row, col, rowd; - unsigned long flags; - unsigned int num_pressed; - - if (corgikbd_data->suspended) - return; - - spin_lock_irqsave(&corgikbd_data->lock, flags); - - num_pressed = 0; - for (col = 0; col < KB_COLS; col++) { - /* - * Discharge the output driver capacitatance - * in the keyboard matrix. (Yes it is significant..) - */ - - corgikbd_discharge_all(); - udelay(KB_DISCHARGE_DELAY); - - corgikbd_activate_col(col); - udelay(KB_ACTIVATE_DELAY); - - rowd = GET_ROWS_STATUS(col); - for (row = 0; row < KB_ROWS; row++) { - unsigned int scancode, pressed; - - scancode = SCANCODE(row, col); - pressed = rowd & KB_ROWMASK(row); - - input_report_key(corgikbd_data->input, corgikbd_data->keycode[scancode], pressed); - - if (pressed) - num_pressed++; - - if (pressed && (corgikbd_data->keycode[scancode] == CORGI_KEY_OFF) - && time_after(jiffies, corgikbd_data->suspend_jiffies + HZ)) { - input_event(corgikbd_data->input, EV_PWR, CORGI_KEY_OFF, 1); - corgikbd_data->suspend_jiffies=jiffies; - } - } - corgikbd_reset_col(col); - } - - corgikbd_activate_all(); - - input_sync(corgikbd_data->input); - - /* if any keys are pressed, enable the timer */ - if (num_pressed) - mod_timer(&corgikbd_data->timer, jiffies + msecs_to_jiffies(SCAN_INTERVAL)); - - spin_unlock_irqrestore(&corgikbd_data->lock, flags); -} - -/* - * corgi keyboard interrupt handler. - */ -static irqreturn_t corgikbd_interrupt(int irq, void *dev_id) -{ - struct corgikbd *corgikbd_data = dev_id; - - if (!timer_pending(&corgikbd_data->timer)) { - /** wait chattering delay **/ - udelay(20); - corgikbd_scankeyboard(corgikbd_data); - } - - return IRQ_HANDLED; -} - -/* - * corgi timer checking for released keys - */ -static void corgikbd_timer_callback(unsigned long data) -{ - struct corgikbd *corgikbd_data = (struct corgikbd *) data; - corgikbd_scankeyboard(corgikbd_data); -} - -/* - * The hinge switches generate no interrupt so they need to be - * monitored by a timer. - * - * We debounce the switches and pass them to the input system. - * - * gprr == 0x00 - Keyboard with Landscape Screen - * 0x08 - No Keyboard with Portrait Screen - * 0x0c - Keyboard and Screen Closed - */ - -#define READ_GPIO_BIT(x) (GPLR(x) & GPIO_bit(x)) -#define HINGE_STABLE_COUNT 2 -static int sharpsl_hinge_state; -static int hinge_count; - -static void corgikbd_hinge_timer(unsigned long data) -{ - struct corgikbd *corgikbd_data = (struct corgikbd *) data; - unsigned long gprr; - unsigned long flags; - - gprr = read_scoop_reg(&corgiscoop_device.dev, SCOOP_GPRR) & (CORGI_SCP_SWA | CORGI_SCP_SWB); - gprr |= (READ_GPIO_BIT(CORGI_GPIO_AK_INT) != 0); - if (gprr != sharpsl_hinge_state) { - hinge_count = 0; - sharpsl_hinge_state = gprr; - } else if (hinge_count < HINGE_STABLE_COUNT) { - hinge_count++; - if (hinge_count >= HINGE_STABLE_COUNT) { - spin_lock_irqsave(&corgikbd_data->lock, flags); - - input_report_switch(corgikbd_data->input, SW_LID, ((sharpsl_hinge_state & CORGI_SCP_SWA) != 0)); - input_report_switch(corgikbd_data->input, SW_TABLET_MODE, ((sharpsl_hinge_state & CORGI_SCP_SWB) != 0)); - input_report_switch(corgikbd_data->input, SW_HEADPHONE_INSERT, (READ_GPIO_BIT(CORGI_GPIO_AK_INT) != 0)); - input_sync(corgikbd_data->input); - - spin_unlock_irqrestore(&corgikbd_data->lock, flags); - } - } - mod_timer(&corgikbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL)); -} - -#ifdef CONFIG_PM -static int corgikbd_suspend(struct platform_device *dev, pm_message_t state) -{ - int i; - struct corgikbd *corgikbd = platform_get_drvdata(dev); - - corgikbd->suspended = 1; - /* strobe 0 is the power key so this can't be made an input for - powersaving therefore i = 1 */ - for (i = 1; i < CORGI_KEY_STROBE_NUM; i++) - pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_IN); - - return 0; -} - -static int corgikbd_resume(struct platform_device *dev) -{ - int i; - struct corgikbd *corgikbd = platform_get_drvdata(dev); - - for (i = 1; i < CORGI_KEY_STROBE_NUM; i++) - pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_OUT | GPIO_DFLT_HIGH); - - /* Upon resume, ignore the suspend key for a short while */ - corgikbd->suspend_jiffies=jiffies; - corgikbd->suspended = 0; - - return 0; -} -#else -#define corgikbd_suspend NULL -#define corgikbd_resume NULL -#endif - -static int __devinit corgikbd_probe(struct platform_device *pdev) -{ - struct corgikbd *corgikbd; - struct input_dev *input_dev; - int i, err = -ENOMEM; - - corgikbd = kzalloc(sizeof(struct corgikbd), GFP_KERNEL); - input_dev = input_allocate_device(); - if (!corgikbd || !input_dev) - goto fail; - - platform_set_drvdata(pdev, corgikbd); - - corgikbd->input = input_dev; - spin_lock_init(&corgikbd->lock); - - /* Init Keyboard rescan timer */ - init_timer(&corgikbd->timer); - corgikbd->timer.function = corgikbd_timer_callback; - corgikbd->timer.data = (unsigned long) corgikbd; - - /* Init Hinge Timer */ - init_timer(&corgikbd->htimer); - corgikbd->htimer.function = corgikbd_hinge_timer; - corgikbd->htimer.data = (unsigned long) corgikbd; - - corgikbd->suspend_jiffies=jiffies; - - memcpy(corgikbd->keycode, corgikbd_keycode, sizeof(corgikbd->keycode)); - - input_dev->name = "Corgi Keyboard"; - input_dev->phys = "corgikbd/input0"; - input_dev->id.bustype = BUS_HOST; - input_dev->id.vendor = 0x0001; - input_dev->id.product = 0x0001; - input_dev->id.version = 0x0100; - input_dev->dev.parent = &pdev->dev; - - input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | - BIT_MASK(EV_PWR) | BIT_MASK(EV_SW); - input_dev->keycode = corgikbd->keycode; - input_dev->keycodesize = sizeof(unsigned char); - input_dev->keycodemax = ARRAY_SIZE(corgikbd_keycode); - - for (i = 0; i < ARRAY_SIZE(corgikbd_keycode); i++) - set_bit(corgikbd->keycode[i], input_dev->keybit); - clear_bit(0, input_dev->keybit); - set_bit(SW_LID, input_dev->swbit); - set_bit(SW_TABLET_MODE, input_dev->swbit); - set_bit(SW_HEADPHONE_INSERT, input_dev->swbit); - - err = input_register_device(corgikbd->input); - if (err) - goto fail; - - mod_timer(&corgikbd->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL)); - - /* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */ - for (i = 0; i < CORGI_KEY_SENSE_NUM; i++) { - pxa_gpio_mode(CORGI_GPIO_KEY_SENSE(i) | GPIO_IN); - if (request_irq(CORGI_IRQ_GPIO_KEY_SENSE(i), corgikbd_interrupt, - IRQF_DISABLED | IRQF_TRIGGER_RISING, - "corgikbd", corgikbd)) - printk(KERN_WARNING "corgikbd: Can't get IRQ: %d!\n", i); - } - - /* Set Strobe lines as outputs - set high */ - for (i = 0; i < CORGI_KEY_STROBE_NUM; i++) - pxa_gpio_mode(CORGI_GPIO_KEY_STROBE(i) | GPIO_OUT | GPIO_DFLT_HIGH); - - /* Setup the headphone jack as an input */ - pxa_gpio_mode(CORGI_GPIO_AK_INT | GPIO_IN); - - return 0; - - fail: input_free_device(input_dev); - kfree(corgikbd); - return err; -} - -static int __devexit corgikbd_remove(struct platform_device *pdev) -{ - int i; - struct corgikbd *corgikbd = platform_get_drvdata(pdev); - - for (i = 0; i < CORGI_KEY_SENSE_NUM; i++) - free_irq(CORGI_IRQ_GPIO_KEY_SENSE(i), corgikbd); - - del_timer_sync(&corgikbd->htimer); - del_timer_sync(&corgikbd->timer); - - input_unregister_device(corgikbd->input); - - kfree(corgikbd); - - return 0; -} - -static struct platform_driver corgikbd_driver = { - .probe = corgikbd_probe, - .remove = __devexit_p(corgikbd_remove), - .suspend = corgikbd_suspend, - .resume = corgikbd_resume, - .driver = { - .name = "corgi-keyboard", - .owner = THIS_MODULE, - }, -}; - -static int __init corgikbd_init(void) -{ - return platform_driver_register(&corgikbd_driver); -} - -static void __exit corgikbd_exit(void) -{ - platform_driver_unregister(&corgikbd_driver); -} - -module_init(corgikbd_init); -module_exit(corgikbd_exit); - -MODULE_AUTHOR("Richard Purdie "); -MODULE_DESCRIPTION("Corgi Keyboard Driver"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:corgi-keyboard"); diff --git a/drivers/input/keyboard/spitzkbd.c b/drivers/input/keyboard/spitzkbd.c deleted file mode 100644 index 13967422658..00000000000 --- a/drivers/input/keyboard/spitzkbd.c +++ /dev/null @@ -1,496 +0,0 @@ -/* - * Keyboard driver for Sharp Spitz, Borzoi and Akita (SL-Cxx00 series) - * - * Copyright (c) 2005 Richard Purdie - * - * Based on corgikbd.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#define KB_ROWS 7 -#define KB_COLS 11 -#define KB_ROWMASK(r) (1 << (r)) -#define SCANCODE(r,c) (((r)<<4) + (c) + 1) -#define NR_SCANCODES ((KB_ROWS<<4) + 1) - -#define SCAN_INTERVAL (50) /* ms */ -#define HINGE_SCAN_INTERVAL (150) /* ms */ - -#define SPITZ_KEY_CALENDER KEY_F1 -#define SPITZ_KEY_ADDRESS KEY_F2 -#define SPITZ_KEY_FN KEY_F3 -#define SPITZ_KEY_CANCEL KEY_F4 -#define SPITZ_KEY_EXOK KEY_F5 -#define SPITZ_KEY_EXCANCEL KEY_F6 -#define SPITZ_KEY_EXJOGDOWN KEY_F7 -#define SPITZ_KEY_EXJOGUP KEY_F8 -#define SPITZ_KEY_JAP1 KEY_LEFTALT -#define SPITZ_KEY_JAP2 KEY_RIGHTCTRL -#define SPITZ_KEY_SYNC KEY_F9 -#define SPITZ_KEY_MAIL KEY_F10 -#define SPITZ_KEY_OK KEY_F11 -#define SPITZ_KEY_MENU KEY_F12 - -static unsigned char spitzkbd_keycode[NR_SCANCODES] = { - 0, /* 0 */ - KEY_LEFTCTRL, KEY_1, KEY_3, KEY_5, KEY_6, KEY_7, KEY_9, KEY_0, KEY_BACKSPACE, SPITZ_KEY_EXOK, SPITZ_KEY_EXCANCEL, 0, 0, 0, 0, 0, /* 1-16 */ - 0, KEY_2, KEY_4, KEY_R, KEY_Y, KEY_8, KEY_I, KEY_O, KEY_P, SPITZ_KEY_EXJOGDOWN, SPITZ_KEY_EXJOGUP, 0, 0, 0, 0, 0, /* 17-32 */ - KEY_TAB, KEY_Q, KEY_E, KEY_T, KEY_G, KEY_U, KEY_J, KEY_K, 0, 0, 0, 0, 0, 0, 0, 0, /* 33-48 */ - SPITZ_KEY_ADDRESS, KEY_W, KEY_S, KEY_F, KEY_V, KEY_H, KEY_M, KEY_L, 0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, /* 49-64 */ - SPITZ_KEY_CALENDER, KEY_A, KEY_D, KEY_C, KEY_B, KEY_N, KEY_DOT, 0, KEY_ENTER, KEY_LEFTSHIFT, 0, 0, 0, 0, 0, 0, /* 65-80 */ - SPITZ_KEY_MAIL, KEY_Z, KEY_X, KEY_MINUS, KEY_SPACE, KEY_COMMA, 0, KEY_UP, 0, 0, SPITZ_KEY_FN, 0, 0, 0, 0, 0, /* 81-96 */ - KEY_SYSRQ, SPITZ_KEY_JAP1, SPITZ_KEY_JAP2, SPITZ_KEY_CANCEL, SPITZ_KEY_OK, SPITZ_KEY_MENU, KEY_LEFT, KEY_DOWN, KEY_RIGHT, 0, 0, 0, 0, 0, 0, 0 /* 97-112 */ -}; - -static int spitz_strobes[] = { - SPITZ_GPIO_KEY_STROBE0, - SPITZ_GPIO_KEY_STROBE1, - SPITZ_GPIO_KEY_STROBE2, - SPITZ_GPIO_KEY_STROBE3, - SPITZ_GPIO_KEY_STROBE4, - SPITZ_GPIO_KEY_STROBE5, - SPITZ_GPIO_KEY_STROBE6, - SPITZ_GPIO_KEY_STROBE7, - SPITZ_GPIO_KEY_STROBE8, - SPITZ_GPIO_KEY_STROBE9, - SPITZ_GPIO_KEY_STROBE10, -}; - -static int spitz_senses[] = { - SPITZ_GPIO_KEY_SENSE0, - SPITZ_GPIO_KEY_SENSE1, - SPITZ_GPIO_KEY_SENSE2, - SPITZ_GPIO_KEY_SENSE3, - SPITZ_GPIO_KEY_SENSE4, - SPITZ_GPIO_KEY_SENSE5, - SPITZ_GPIO_KEY_SENSE6, -}; - -struct spitzkbd { - unsigned char keycode[ARRAY_SIZE(spitzkbd_keycode)]; - struct input_dev *input; - char phys[32]; - - spinlock_t lock; - struct timer_list timer; - struct timer_list htimer; - - unsigned int suspended; - unsigned long suspend_jiffies; -}; - -#define KB_DISCHARGE_DELAY 10 -#define KB_ACTIVATE_DELAY 10 - -/* Helper functions for reading the keyboard matrix - * Note: We should really be using the generic gpio functions to alter - * GPDR but it requires a function call per GPIO bit which is - * excessive when we need to access 11 bits at once, multiple times. - * These functions must be called within local_irq_save()/local_irq_restore() - * or similar. - */ -static inline void spitzkbd_discharge_all(void) -{ - /* STROBE All HiZ */ - GPCR0 = SPITZ_GPIO_G0_STROBE_BIT; - GPDR0 &= ~SPITZ_GPIO_G0_STROBE_BIT; - GPCR1 = SPITZ_GPIO_G1_STROBE_BIT; - GPDR1 &= ~SPITZ_GPIO_G1_STROBE_BIT; - GPCR2 = SPITZ_GPIO_G2_STROBE_BIT; - GPDR2 &= ~SPITZ_GPIO_G2_STROBE_BIT; - GPCR3 = SPITZ_GPIO_G3_STROBE_BIT; - GPDR3 &= ~SPITZ_GPIO_G3_STROBE_BIT; -} - -static inline void spitzkbd_activate_all(void) -{ - /* STROBE ALL -> High */ - GPSR0 = SPITZ_GPIO_G0_STROBE_BIT; - GPDR0 |= SPITZ_GPIO_G0_STROBE_BIT; - GPSR1 = SPITZ_GPIO_G1_STROBE_BIT; - GPDR1 |= SPITZ_GPIO_G1_STROBE_BIT; - GPSR2 = SPITZ_GPIO_G2_STROBE_BIT; - GPDR2 |= SPITZ_GPIO_G2_STROBE_BIT; - GPSR3 = SPITZ_GPIO_G3_STROBE_BIT; - GPDR3 |= SPITZ_GPIO_G3_STROBE_BIT; - - udelay(KB_DISCHARGE_DELAY); - - /* Clear any interrupts we may have triggered when altering the GPIO lines */ - GEDR0 = SPITZ_GPIO_G0_SENSE_BIT; - GEDR1 = SPITZ_GPIO_G1_SENSE_BIT; - GEDR2 = SPITZ_GPIO_G2_SENSE_BIT; - GEDR3 = SPITZ_GPIO_G3_SENSE_BIT; -} - -static inline void spitzkbd_activate_col(int col) -{ - int gpio = spitz_strobes[col]; - GPDR0 &= ~SPITZ_GPIO_G0_STROBE_BIT; - GPDR1 &= ~SPITZ_GPIO_G1_STROBE_BIT; - GPDR2 &= ~SPITZ_GPIO_G2_STROBE_BIT; - GPDR3 &= ~SPITZ_GPIO_G3_STROBE_BIT; - GPSR(gpio) = GPIO_bit(gpio); - GPDR(gpio) |= GPIO_bit(gpio); -} - -static inline void spitzkbd_reset_col(int col) -{ - int gpio = spitz_strobes[col]; - GPDR0 &= ~SPITZ_GPIO_G0_STROBE_BIT; - GPDR1 &= ~SPITZ_GPIO_G1_STROBE_BIT; - GPDR2 &= ~SPITZ_GPIO_G2_STROBE_BIT; - GPDR3 &= ~SPITZ_GPIO_G3_STROBE_BIT; - GPCR(gpio) = GPIO_bit(gpio); - GPDR(gpio) |= GPIO_bit(gpio); -} - -static inline int spitzkbd_get_row_status(int col) -{ - return ((GPLR0 >> 12) & 0x01) | ((GPLR0 >> 16) & 0x02) - | ((GPLR2 >> 25) & 0x04) | ((GPLR1 << 1) & 0x08) - | ((GPLR1 >> 0) & 0x10) | ((GPLR1 >> 1) & 0x60); -} - -/* - * The spitz keyboard only generates interrupts when a key is pressed. - * When a key is pressed, we enable a timer which then scans the - * keyboard to detect when the key is released. - */ - -/* Scan the hardware keyboard and push any changes up through the input layer */ -static void spitzkbd_scankeyboard(struct spitzkbd *spitzkbd_data) -{ - unsigned int row, col, rowd; - unsigned long flags; - unsigned int num_pressed, pwrkey = ((GPLR(SPITZ_GPIO_ON_KEY) & GPIO_bit(SPITZ_GPIO_ON_KEY)) != 0); - - if (spitzkbd_data->suspended) - return; - - spin_lock_irqsave(&spitzkbd_data->lock, flags); - - num_pressed = 0; - for (col = 0; col < KB_COLS; col++) { - /* - * Discharge the output driver capacitatance - * in the keyboard matrix. (Yes it is significant..) - */ - - spitzkbd_discharge_all(); - udelay(KB_DISCHARGE_DELAY); - - spitzkbd_activate_col(col); - udelay(KB_ACTIVATE_DELAY); - - rowd = spitzkbd_get_row_status(col); - for (row = 0; row < KB_ROWS; row++) { - unsigned int scancode, pressed; - - scancode = SCANCODE(row, col); - pressed = rowd & KB_ROWMASK(row); - - input_report_key(spitzkbd_data->input, spitzkbd_data->keycode[scancode], pressed); - - if (pressed) - num_pressed++; - } - spitzkbd_reset_col(col); - } - - spitzkbd_activate_all(); - - input_report_key(spitzkbd_data->input, SPITZ_KEY_SYNC, (GPLR(SPITZ_GPIO_SYNC) & GPIO_bit(SPITZ_GPIO_SYNC)) != 0 ); - input_report_key(spitzkbd_data->input, KEY_SUSPEND, pwrkey); - - if (pwrkey && time_after(jiffies, spitzkbd_data->suspend_jiffies + msecs_to_jiffies(1000))) { - input_event(spitzkbd_data->input, EV_PWR, KEY_SUSPEND, 1); - spitzkbd_data->suspend_jiffies = jiffies; - } - - input_sync(spitzkbd_data->input); - - /* if any keys are pressed, enable the timer */ - if (num_pressed) - mod_timer(&spitzkbd_data->timer, jiffies + msecs_to_jiffies(SCAN_INTERVAL)); - - spin_unlock_irqrestore(&spitzkbd_data->lock, flags); -} - -/* - * spitz keyboard interrupt handler. - */ -static irqreturn_t spitzkbd_interrupt(int irq, void *dev_id) -{ - struct spitzkbd *spitzkbd_data = dev_id; - - if (!timer_pending(&spitzkbd_data->timer)) { - /** wait chattering delay **/ - udelay(20); - spitzkbd_scankeyboard(spitzkbd_data); - } - - return IRQ_HANDLED; -} - -/* - * spitz timer checking for released keys - */ -static void spitzkbd_timer_callback(unsigned long data) -{ - struct spitzkbd *spitzkbd_data = (struct spitzkbd *) data; - - spitzkbd_scankeyboard(spitzkbd_data); -} - -/* - * The hinge switches generate an interrupt. - * We debounce the switches and pass them to the input system. - */ - -static irqreturn_t spitzkbd_hinge_isr(int irq, void *dev_id) -{ - struct spitzkbd *spitzkbd_data = dev_id; - - if (!timer_pending(&spitzkbd_data->htimer)) - mod_timer(&spitzkbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL)); - - return IRQ_HANDLED; -} - -#define HINGE_STABLE_COUNT 2 -static int sharpsl_hinge_state; -static int hinge_count; - -static void spitzkbd_hinge_timer(unsigned long data) -{ - struct spitzkbd *spitzkbd_data = (struct spitzkbd *) data; - unsigned long state; - unsigned long flags; - - state = GPLR(SPITZ_GPIO_SWA) & (GPIO_bit(SPITZ_GPIO_SWA)|GPIO_bit(SPITZ_GPIO_SWB)); - state |= (GPLR(SPITZ_GPIO_AK_INT) & GPIO_bit(SPITZ_GPIO_AK_INT)); - if (state != sharpsl_hinge_state) { - hinge_count = 0; - sharpsl_hinge_state = state; - } else if (hinge_count < HINGE_STABLE_COUNT) { - hinge_count++; - } - - if (hinge_count >= HINGE_STABLE_COUNT) { - spin_lock_irqsave(&spitzkbd_data->lock, flags); - - input_report_switch(spitzkbd_data->input, SW_LID, ((GPLR(SPITZ_GPIO_SWA) & GPIO_bit(SPITZ_GPIO_SWA)) != 0)); - input_report_switch(spitzkbd_data->input, SW_TABLET_MODE, ((GPLR(SPITZ_GPIO_SWB) & GPIO_bit(SPITZ_GPIO_SWB)) != 0)); - input_report_switch(spitzkbd_data->input, SW_HEADPHONE_INSERT, ((GPLR(SPITZ_GPIO_AK_INT) & GPIO_bit(SPITZ_GPIO_AK_INT)) != 0)); - input_sync(spitzkbd_data->input); - - spin_unlock_irqrestore(&spitzkbd_data->lock, flags); - } else { - mod_timer(&spitzkbd_data->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL)); - } -} - -#ifdef CONFIG_PM -static int spitzkbd_suspend(struct platform_device *dev, pm_message_t state) -{ - int i; - struct spitzkbd *spitzkbd = platform_get_drvdata(dev); - spitzkbd->suspended = 1; - - /* Set Strobe lines as inputs - *except* strobe line 0 leave this - enabled so we can detect a power button press for resume */ - for (i = 1; i < SPITZ_KEY_STROBE_NUM; i++) - pxa_gpio_mode(spitz_strobes[i] | GPIO_IN); - - return 0; -} - -static int spitzkbd_resume(struct platform_device *dev) -{ - int i; - struct spitzkbd *spitzkbd = platform_get_drvdata(dev); - - for (i = 0; i < SPITZ_KEY_STROBE_NUM; i++) - pxa_gpio_mode(spitz_strobes[i] | GPIO_OUT | GPIO_DFLT_HIGH); - - /* Upon resume, ignore the suspend key for a short while */ - spitzkbd->suspend_jiffies = jiffies; - spitzkbd->suspended = 0; - - return 0; -} -#else -#define spitzkbd_suspend NULL -#define spitzkbd_resume NULL -#endif - -static int __devinit spitzkbd_probe(struct platform_device *dev) -{ - struct spitzkbd *spitzkbd; - struct input_dev *input_dev; - int i, err = -ENOMEM; - - spitzkbd = kzalloc(sizeof(struct spitzkbd), GFP_KERNEL); - input_dev = input_allocate_device(); - if (!spitzkbd || !input_dev) - goto fail; - - platform_set_drvdata(dev, spitzkbd); - strcpy(spitzkbd->phys, "spitzkbd/input0"); - - spin_lock_init(&spitzkbd->lock); - - /* Init Keyboard rescan timer */ - init_timer(&spitzkbd->timer); - spitzkbd->timer.function = spitzkbd_timer_callback; - spitzkbd->timer.data = (unsigned long) spitzkbd; - - /* Init Hinge Timer */ - init_timer(&spitzkbd->htimer); - spitzkbd->htimer.function = spitzkbd_hinge_timer; - spitzkbd->htimer.data = (unsigned long) spitzkbd; - - spitzkbd->suspend_jiffies = jiffies; - - spitzkbd->input = input_dev; - - input_dev->name = "Spitz Keyboard"; - input_dev->phys = spitzkbd->phys; - input_dev->dev.parent = &dev->dev; - - input_dev->id.bustype = BUS_HOST; - input_dev->id.vendor = 0x0001; - input_dev->id.product = 0x0001; - input_dev->id.version = 0x0100; - - input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REP) | - BIT_MASK(EV_PWR) | BIT_MASK(EV_SW); - input_dev->keycode = spitzkbd->keycode; - input_dev->keycodesize = sizeof(unsigned char); - input_dev->keycodemax = ARRAY_SIZE(spitzkbd_keycode); - - memcpy(spitzkbd->keycode, spitzkbd_keycode, sizeof(spitzkbd->keycode)); - for (i = 0; i < ARRAY_SIZE(spitzkbd_keycode); i++) - set_bit(spitzkbd->keycode[i], input_dev->keybit); - clear_bit(0, input_dev->keybit); - set_bit(KEY_SUSPEND, input_dev->keybit); - set_bit(SW_LID, input_dev->swbit); - set_bit(SW_TABLET_MODE, input_dev->swbit); - set_bit(SW_HEADPHONE_INSERT, input_dev->swbit); - - err = input_register_device(input_dev); - if (err) - goto fail; - - mod_timer(&spitzkbd->htimer, jiffies + msecs_to_jiffies(HINGE_SCAN_INTERVAL)); - - /* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */ - for (i = 0; i < SPITZ_KEY_SENSE_NUM; i++) { - pxa_gpio_mode(spitz_senses[i] | GPIO_IN); - if (request_irq(IRQ_GPIO(spitz_senses[i]), spitzkbd_interrupt, - IRQF_DISABLED|IRQF_TRIGGER_RISING, - "Spitzkbd Sense", spitzkbd)) - printk(KERN_WARNING "spitzkbd: Can't get Sense IRQ: %d!\n", i); - } - - /* Set Strobe lines as outputs - set high */ - for (i = 0; i < SPITZ_KEY_STROBE_NUM; i++) - pxa_gpio_mode(spitz_strobes[i] | GPIO_OUT | GPIO_DFLT_HIGH); - - pxa_gpio_mode(SPITZ_GPIO_SYNC | GPIO_IN); - pxa_gpio_mode(SPITZ_GPIO_ON_KEY | GPIO_IN); - pxa_gpio_mode(SPITZ_GPIO_SWA | GPIO_IN); - pxa_gpio_mode(SPITZ_GPIO_SWB | GPIO_IN); - - request_irq(SPITZ_IRQ_GPIO_SYNC, spitzkbd_interrupt, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - "Spitzkbd Sync", spitzkbd); - request_irq(SPITZ_IRQ_GPIO_ON_KEY, spitzkbd_interrupt, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - "Spitzkbd PwrOn", spitzkbd); - request_irq(SPITZ_IRQ_GPIO_SWA, spitzkbd_hinge_isr, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - "Spitzkbd SWA", spitzkbd); - request_irq(SPITZ_IRQ_GPIO_SWB, spitzkbd_hinge_isr, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - "Spitzkbd SWB", spitzkbd); - request_irq(SPITZ_IRQ_GPIO_AK_INT, spitzkbd_hinge_isr, - IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, - "Spitzkbd HP", spitzkbd); - - return 0; - - fail: input_free_device(input_dev); - kfree(spitzkbd); - return err; -} - -static int __devexit spitzkbd_remove(struct platform_device *dev) -{ - int i; - struct spitzkbd *spitzkbd = platform_get_drvdata(dev); - - for (i = 0; i < SPITZ_KEY_SENSE_NUM; i++) - free_irq(IRQ_GPIO(spitz_senses[i]), spitzkbd); - - free_irq(SPITZ_IRQ_GPIO_SYNC, spitzkbd); - free_irq(SPITZ_IRQ_GPIO_ON_KEY, spitzkbd); - free_irq(SPITZ_IRQ_GPIO_SWA, spitzkbd); - free_irq(SPITZ_IRQ_GPIO_SWB, spitzkbd); - free_irq(SPITZ_IRQ_GPIO_AK_INT, spitzkbd); - - del_timer_sync(&spitzkbd->htimer); - del_timer_sync(&spitzkbd->timer); - - input_unregister_device(spitzkbd->input); - - kfree(spitzkbd); - - return 0; -} - -static struct platform_driver spitzkbd_driver = { - .probe = spitzkbd_probe, - .remove = __devexit_p(spitzkbd_remove), - .suspend = spitzkbd_suspend, - .resume = spitzkbd_resume, - .driver = { - .name = "spitz-keyboard", - .owner = THIS_MODULE, - }, -}; - -static int __init spitzkbd_init(void) -{ - return platform_driver_register(&spitzkbd_driver); -} - -static void __exit spitzkbd_exit(void) -{ - platform_driver_unregister(&spitzkbd_driver); -} - -module_init(spitzkbd_init); -module_exit(spitzkbd_exit); - -MODULE_AUTHOR("Richard Purdie "); -MODULE_DESCRIPTION("Spitz Keyboard Driver"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:spitz-keyboard"); diff --git a/drivers/input/keyboard/tosakbd.c b/drivers/input/keyboard/tosakbd.c deleted file mode 100644 index 3910f269cfc..00000000000 --- a/drivers/input/keyboard/tosakbd.c +++ /dev/null @@ -1,431 +0,0 @@ -/* - * Keyboard driver for Sharp Tosa models (SL-6000x) - * - * Copyright (c) 2005 Dirk Opfer - * Copyright (c) 2007 Dmitry Baryshkov - * - * Based on xtkbd.c/locomkbd.c/corgikbd.c - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - */ - -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#define KB_ROWMASK(r) (1 << (r)) -#define SCANCODE(r, c) (((r)<<4) + (c) + 1) -#define NR_SCANCODES SCANCODE(TOSA_KEY_SENSE_NUM - 1, TOSA_KEY_STROBE_NUM - 1) + 1 - -#define SCAN_INTERVAL (HZ/10) - -#define KB_DISCHARGE_DELAY 10 -#define KB_ACTIVATE_DELAY 10 - -static unsigned short tosakbd_keycode[NR_SCANCODES] = { -0, -0, KEY_W, 0, 0, 0, KEY_K, KEY_BACKSPACE, KEY_P, -0, 0, 0, 0, 0, 0, 0, 0, -KEY_Q, KEY_E, KEY_T, KEY_Y, 0, KEY_O, KEY_I, KEY_COMMA, -0, 0, 0, 0, 0, 0, 0, 0, -KEY_A, KEY_D, KEY_G, KEY_U, 0, KEY_L, KEY_ENTER, KEY_DOT, -0, 0, 0, 0, 0, 0, 0, 0, -KEY_Z, KEY_C, KEY_V, KEY_J, TOSA_KEY_ADDRESSBOOK, TOSA_KEY_CANCEL, TOSA_KEY_CENTER, TOSA_KEY_OK, -KEY_LEFTSHIFT, 0, 0, 0, 0, 0, 0, 0, -KEY_S, KEY_R, KEY_B, KEY_N, TOSA_KEY_CALENDAR, TOSA_KEY_HOMEPAGE, KEY_LEFTCTRL, TOSA_KEY_LIGHT, -0, KEY_RIGHTSHIFT, 0, 0, 0, 0, 0, 0, -KEY_TAB, KEY_SLASH, KEY_H, KEY_M, TOSA_KEY_MENU, 0, KEY_UP, 0, -0, 0, TOSA_KEY_FN, 0, 0, 0, 0, 0, -KEY_X, KEY_F, KEY_SPACE, KEY_APOSTROPHE, TOSA_KEY_MAIL, KEY_LEFT, KEY_DOWN, KEY_RIGHT, -0, 0, 0, -}; - -struct tosakbd { - unsigned short keycode[ARRAY_SIZE(tosakbd_keycode)]; - struct input_dev *input; - bool suspended; - spinlock_t lock; /* protect kbd scanning */ - struct timer_list timer; -}; - - -/* Helper functions for reading the keyboard matrix - * Note: We should really be using the generic gpio functions to alter - * GPDR but it requires a function call per GPIO bit which is - * excessive when we need to access 12 bits at once, multiple times. - * These functions must be called within local_irq_save()/local_irq_restore() - * or similar. - */ -#define GET_ROWS_STATUS(c) ((GPLR2 & TOSA_GPIO_ALL_SENSE_BIT) >> TOSA_GPIO_ALL_SENSE_RSHIFT) - -static inline void tosakbd_discharge_all(void) -{ - /* STROBE All HiZ */ - GPCR1 = TOSA_GPIO_HIGH_STROBE_BIT; - GPDR1 &= ~TOSA_GPIO_HIGH_STROBE_BIT; - GPCR2 = TOSA_GPIO_LOW_STROBE_BIT; - GPDR2 &= ~TOSA_GPIO_LOW_STROBE_BIT; -} - -static inline void tosakbd_activate_all(void) -{ - /* STROBE ALL -> High */ - GPSR1 = TOSA_GPIO_HIGH_STROBE_BIT; - GPDR1 |= TOSA_GPIO_HIGH_STROBE_BIT; - GPSR2 = TOSA_GPIO_LOW_STROBE_BIT; - GPDR2 |= TOSA_GPIO_LOW_STROBE_BIT; - - udelay(KB_DISCHARGE_DELAY); - - /* STATE CLEAR */ - GEDR2 |= TOSA_GPIO_ALL_SENSE_BIT; -} - -static inline void tosakbd_activate_col(int col) -{ - if (col <= 5) { - /* STROBE col -> High, not col -> HiZ */ - GPSR1 = TOSA_GPIO_STROBE_BIT(col); - GPDR1 = (GPDR1 & ~TOSA_GPIO_HIGH_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col); - } else { - /* STROBE col -> High, not col -> HiZ */ - GPSR2 = TOSA_GPIO_STROBE_BIT(col); - GPDR2 = (GPDR2 & ~TOSA_GPIO_LOW_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col); - } -} - -static inline void tosakbd_reset_col(int col) -{ - if (col <= 5) { - /* STROBE col -> Low */ - GPCR1 = TOSA_GPIO_STROBE_BIT(col); - /* STROBE col -> out, not col -> HiZ */ - GPDR1 = (GPDR1 & ~TOSA_GPIO_HIGH_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col); - } else { - /* STROBE col -> Low */ - GPCR2 = TOSA_GPIO_STROBE_BIT(col); - /* STROBE col -> out, not col -> HiZ */ - GPDR2 = (GPDR2 & ~TOSA_GPIO_LOW_STROBE_BIT) | TOSA_GPIO_STROBE_BIT(col); - } -} -/* - * The tosa keyboard only generates interrupts when a key is pressed. - * So when a key is pressed, we enable a timer. This timer scans the - * keyboard, and this is how we detect when the key is released. - */ - -/* Scan the hardware keyboard and push any changes up through the input layer */ -static void tosakbd_scankeyboard(struct platform_device *dev) -{ - struct tosakbd *tosakbd = platform_get_drvdata(dev); - unsigned int row, col, rowd; - unsigned long flags; - unsigned int num_pressed = 0; - - spin_lock_irqsave(&tosakbd->lock, flags); - - if (tosakbd->suspended) - goto out; - - for (col = 0; col < TOSA_KEY_STROBE_NUM; col++) { - /* - * Discharge the output driver capacitatance - * in the keyboard matrix. (Yes it is significant..) - */ - tosakbd_discharge_all(); - udelay(KB_DISCHARGE_DELAY); - - tosakbd_activate_col(col); - udelay(KB_ACTIVATE_DELAY); - - rowd = GET_ROWS_STATUS(col); - - for (row = 0; row < TOSA_KEY_SENSE_NUM; row++) { - unsigned int scancode, pressed; - scancode = SCANCODE(row, col); - pressed = rowd & KB_ROWMASK(row); - - if (pressed && !tosakbd->keycode[scancode]) - dev_warn(&dev->dev, - "unhandled scancode: 0x%02x\n", - scancode); - - input_report_key(tosakbd->input, - tosakbd->keycode[scancode], - pressed); - if (pressed) - num_pressed++; - } - - tosakbd_reset_col(col); - } - - tosakbd_activate_all(); - - input_sync(tosakbd->input); - - /* if any keys are pressed, enable the timer */ - if (num_pressed) - mod_timer(&tosakbd->timer, jiffies + SCAN_INTERVAL); - - out: - spin_unlock_irqrestore(&tosakbd->lock, flags); -} - -/* - * tosa keyboard interrupt handler. - */ -static irqreturn_t tosakbd_interrupt(int irq, void *__dev) -{ - struct platform_device *dev = __dev; - struct tosakbd *tosakbd = platform_get_drvdata(dev); - - if (!timer_pending(&tosakbd->timer)) { - /** wait chattering delay **/ - udelay(20); - tosakbd_scankeyboard(dev); - } - - return IRQ_HANDLED; -} - -/* - * tosa timer checking for released keys - */ -static void tosakbd_timer_callback(unsigned long __dev) -{ - struct platform_device *dev = (struct platform_device *)__dev; - - tosakbd_scankeyboard(dev); -} - -#ifdef CONFIG_PM -static int tosakbd_suspend(struct platform_device *dev, pm_message_t state) -{ - struct tosakbd *tosakbd = platform_get_drvdata(dev); - unsigned long flags; - - spin_lock_irqsave(&tosakbd->lock, flags); - tosakbd->suspended = true; - spin_unlock_irqrestore(&tosakbd->lock, flags); - - del_timer_sync(&tosakbd->timer); - - return 0; -} - -static int tosakbd_resume(struct platform_device *dev) -{ - struct tosakbd *tosakbd = platform_get_drvdata(dev); - - tosakbd->suspended = false; - tosakbd_scankeyboard(dev); - - return 0; -} -#else -#define tosakbd_suspend NULL -#define tosakbd_resume NULL -#endif - -static int __devinit tosakbd_probe(struct platform_device *pdev) { - - int i; - struct tosakbd *tosakbd; - struct input_dev *input_dev; - int error; - - tosakbd = kzalloc(sizeof(struct tosakbd), GFP_KERNEL); - if (!tosakbd) - return -ENOMEM; - - input_dev = input_allocate_device(); - if (!input_dev) { - kfree(tosakbd); - return -ENOMEM; - } - - platform_set_drvdata(pdev, tosakbd); - - spin_lock_init(&tosakbd->lock); - - /* Init Keyboard rescan timer */ - init_timer(&tosakbd->timer); - tosakbd->timer.function = tosakbd_timer_callback; - tosakbd->timer.data = (unsigned long) pdev; - - tosakbd->input = input_dev; - - input_set_drvdata(input_dev, tosakbd); - input_dev->name = "Tosa Keyboard"; - input_dev->phys = "tosakbd/input0"; - input_dev->dev.parent = &pdev->dev; - - input_dev->id.bustype = BUS_HOST; - input_dev->id.vendor = 0x0001; - input_dev->id.product = 0x0001; - input_dev->id.version = 0x0100; - - input_dev->evbit[0] = BIT(EV_KEY) | BIT(EV_REP); - input_dev->keycode = tosakbd->keycode; - input_dev->keycodesize = sizeof(tosakbd->keycode[0]); - input_dev->keycodemax = ARRAY_SIZE(tosakbd_keycode); - - memcpy(tosakbd->keycode, tosakbd_keycode, sizeof(tosakbd_keycode)); - - for (i = 0; i < ARRAY_SIZE(tosakbd_keycode); i++) - __set_bit(tosakbd->keycode[i], input_dev->keybit); - __clear_bit(KEY_RESERVED, input_dev->keybit); - - /* Setup sense interrupts - RisingEdge Detect, sense lines as inputs */ - for (i = 0; i < TOSA_KEY_SENSE_NUM; i++) { - int gpio = TOSA_GPIO_KEY_SENSE(i); - int irq; - error = gpio_request(gpio, "tosakbd"); - if (error < 0) { - printk(KERN_ERR "tosakbd: failed to request GPIO %d, " - " error %d\n", gpio, error); - goto fail; - } - - error = gpio_direction_input(TOSA_GPIO_KEY_SENSE(i)); - if (error < 0) { - printk(KERN_ERR "tosakbd: failed to configure input" - " direction for GPIO %d, error %d\n", - gpio, error); - gpio_free(gpio); - goto fail; - } - - irq = gpio_to_irq(gpio); - if (irq < 0) { - error = irq; - printk(KERN_ERR "gpio-keys: Unable to get irq number" - " for GPIO %d, error %d\n", - gpio, error); - gpio_free(gpio); - goto fail; - } - - error = request_irq(irq, tosakbd_interrupt, - IRQF_DISABLED | IRQF_TRIGGER_RISING, - "tosakbd", pdev); - - if (error) { - printk("tosakbd: Can't get IRQ: %d: error %d!\n", - irq, error); - gpio_free(gpio); - goto fail; - } - } - - /* Set Strobe lines as outputs - set high */ - for (i = 0; i < TOSA_KEY_STROBE_NUM; i++) { - int gpio = TOSA_GPIO_KEY_STROBE(i); - error = gpio_request(gpio, "tosakbd"); - if (error < 0) { - printk(KERN_ERR "tosakbd: failed to request GPIO %d, " - " error %d\n", gpio, error); - goto fail2; - } - - error = gpio_direction_output(gpio, 1); - if (error < 0) { - printk(KERN_ERR "tosakbd: failed to configure input" - " direction for GPIO %d, error %d\n", - gpio, error); - gpio_free(gpio); - goto fail2; - } - - } - - error = input_register_device(input_dev); - if (error) { - printk(KERN_ERR "tosakbd: Unable to register input device, " - "error: %d\n", error); - goto fail2; - } - - printk(KERN_INFO "input: Tosa Keyboard Registered\n"); - - return 0; - -fail2: - while (--i >= 0) - gpio_free(TOSA_GPIO_KEY_STROBE(i)); - - i = TOSA_KEY_SENSE_NUM; -fail: - while (--i >= 0) { - free_irq(gpio_to_irq(TOSA_GPIO_KEY_SENSE(i)), pdev); - gpio_free(TOSA_GPIO_KEY_SENSE(i)); - } - - platform_set_drvdata(pdev, NULL); - input_free_device(input_dev); - kfree(tosakbd); - - return error; -} - -static int __devexit tosakbd_remove(struct platform_device *dev) -{ - int i; - struct tosakbd *tosakbd = platform_get_drvdata(dev); - - for (i = 0; i < TOSA_KEY_STROBE_NUM; i++) - gpio_free(TOSA_GPIO_KEY_STROBE(i)); - - for (i = 0; i < TOSA_KEY_SENSE_NUM; i++) { - free_irq(gpio_to_irq(TOSA_GPIO_KEY_SENSE(i)), dev); - gpio_free(TOSA_GPIO_KEY_SENSE(i)); - } - - del_timer_sync(&tosakbd->timer); - - input_unregister_device(tosakbd->input); - - kfree(tosakbd); - - return 0; -} - -static struct platform_driver tosakbd_driver = { - .probe = tosakbd_probe, - .remove = __devexit_p(tosakbd_remove), - .suspend = tosakbd_suspend, - .resume = tosakbd_resume, - .driver = { - .name = "tosa-keyboard", - .owner = THIS_MODULE, - }, -}; - -static int __devinit tosakbd_init(void) -{ - return platform_driver_register(&tosakbd_driver); -} - -static void __exit tosakbd_exit(void) -{ - platform_driver_unregister(&tosakbd_driver); -} - -module_init(tosakbd_init); -module_exit(tosakbd_exit); - -MODULE_AUTHOR("Dirk Opfer "); -MODULE_DESCRIPTION("Tosa Keyboard Driver"); -MODULE_LICENSE("GPL v2"); -MODULE_ALIAS("platform:tosa-keyboard"); -- cgit v1.2.3-70-g09d2 From 34441427aab4bdb3069a4ffcda69a99357abcb2e Mon Sep 17 00:00:00 2001 From: Robin Holt Date: Tue, 11 May 2010 14:06:46 -0700 Subject: revert "procfs: provide stack information for threads" and its fixup commits Originally, commit d899bf7b ("procfs: provide stack information for threads") attempted to introduce a new feature for showing where the threadstack was located and how many pages are being utilized by the stack. Commit c44972f1 ("procfs: disable per-task stack usage on NOMMU") was applied to fix the NO_MMU case. Commit 89240ba0 ("x86, fs: Fix x86 procfs stack information for threads on 64-bit") was applied to fix a bug in ia32 executables being loaded. Commit 9ebd4eba7 ("procfs: fix /proc//stat stack pointer for kernel threads") was applied to fix a bug which had kernel threads printing a userland stack address. Commit 1306d603f ('proc: partially revert "procfs: provide stack information for threads"') was then applied to revert the stack pages being used to solve a significant performance regression. This patch nearly undoes the effect of all these patches. The reason for reverting these is it provides an unusable value in field 28. For x86_64, a fork will result in the task->stack_start value being updated to the current user top of stack and not the stack start address. This unpredictability of the stack_start value makes it worthless. That includes the intended use of showing how much stack space a thread has. Other architectures will get different values. As an example, ia64 gets 0. The do_fork() and copy_process() functions appear to treat the stack_start and stack_size parameters as architecture specific. I only partially reverted c44972f1 ("procfs: disable per-task stack usage on NOMMU") . If I had completely reverted it, I would have had to change mm/Makefile only build pagewalk.o when CONFIG_PROC_PAGE_MONITOR is configured. Since I could not test the builds without significant effort, I decided to not change mm/Makefile. I only partially reverted 89240ba0 ("x86, fs: Fix x86 procfs stack information for threads on 64-bit") . I left the KSTK_ESP() change in place as that seemed worthwhile. Signed-off-by: Robin Holt Cc: Stefani Seibold Cc: KOSAKI Motohiro Cc: Michal Simek Cc: Ingo Molnar Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- Documentation/filesystems/proc.txt | 3 +-- fs/compat.c | 2 -- fs/exec.c | 2 -- fs/proc/array.c | 3 +-- fs/proc/task_mmu.c | 19 ------------------- include/linux/sched.h | 1 - kernel/fork.c | 2 -- 7 files changed, 2 insertions(+), 30 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt index a4f30faa4f1..1e359b62c40 100644 --- a/Documentation/filesystems/proc.txt +++ b/Documentation/filesystems/proc.txt @@ -316,7 +316,7 @@ address perms offset dev inode pathname 08049000-0804a000 rw-p 00001000 03:00 8312 /opt/test 0804a000-0806b000 rw-p 00000000 00:00 0 [heap] a7cb1000-a7cb2000 ---p 00000000 00:00 0 -a7cb2000-a7eb2000 rw-p 00000000 00:00 0 [threadstack:001ff4b4] +a7cb2000-a7eb2000 rw-p 00000000 00:00 0 a7eb2000-a7eb3000 ---p 00000000 00:00 0 a7eb3000-a7ed5000 rw-p 00000000 00:00 0 a7ed5000-a8008000 r-xp 00000000 03:00 4222 /lib/libc.so.6 @@ -352,7 +352,6 @@ is not associated with a file: [stack] = the stack of the main process [vdso] = the "virtual dynamic shared object", the kernel system call handler - [threadstack:xxxxxxxx] = the stack of the thread, xxxxxxxx is the stack size or if empty, the mapping is anonymous. diff --git a/fs/compat.c b/fs/compat.c index 4b6ed03cc47..05448730f84 100644 --- a/fs/compat.c +++ b/fs/compat.c @@ -1531,8 +1531,6 @@ int compat_do_execve(char * filename, if (retval < 0) goto out; - current->stack_start = current->mm->start_stack; - /* execve succeeded */ current->fs->in_exec = 0; current->in_execve = 0; diff --git a/fs/exec.c b/fs/exec.c index 49cdaa19e5b..e6e94c626c2 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -1387,8 +1387,6 @@ int do_execve(char * filename, if (retval < 0) goto out; - current->stack_start = current->mm->start_stack; - /* execve succeeded */ current->fs->in_exec = 0; current->in_execve = 0; diff --git a/fs/proc/array.c b/fs/proc/array.c index e51f2ec2c5e..885ab5513ac 100644 --- a/fs/proc/array.c +++ b/fs/proc/array.c @@ -81,7 +81,6 @@ #include #include #include -#include #include #include @@ -495,7 +494,7 @@ static int do_task_stat(struct seq_file *m, struct pid_namespace *ns, rsslim, mm ? mm->start_code : 0, mm ? mm->end_code : 0, - (permitted && mm) ? task->stack_start : 0, + (permitted && mm) ? mm->start_stack : 0, esp, eip, /* The signal information here is obsolete. diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c index 070553427dd..47f5b145f56 100644 --- a/fs/proc/task_mmu.c +++ b/fs/proc/task_mmu.c @@ -247,25 +247,6 @@ static void show_map_vma(struct seq_file *m, struct vm_area_struct *vma) } else if (vma->vm_start <= mm->start_stack && vma->vm_end >= mm->start_stack) { name = "[stack]"; - } else { - unsigned long stack_start; - struct proc_maps_private *pmp; - - pmp = m->private; - stack_start = pmp->task->stack_start; - - if (vma->vm_start <= stack_start && - vma->vm_end >= stack_start) { - pad_len_spaces(m, len); - seq_printf(m, - "[threadstack:%08lx]", -#ifdef CONFIG_STACK_GROWSUP - vma->vm_end - stack_start -#else - stack_start - vma->vm_start -#endif - ); - } } } else { name = "[vdso]"; diff --git a/include/linux/sched.h b/include/linux/sched.h index dad7f668ebf..2b7b81df78b 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1497,7 +1497,6 @@ struct task_struct { /* bitmask of trace recursion */ unsigned long trace_recursion; #endif /* CONFIG_TRACING */ - unsigned long stack_start; #ifdef CONFIG_CGROUP_MEM_RES_CTLR /* memcg uses this to do batch job */ struct memcg_batch_info { int do_batch; /* incremented when batch uncharge started */ diff --git a/kernel/fork.c b/kernel/fork.c index 44b0791b0a2..4c14942a0ee 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -1114,8 +1114,6 @@ static struct task_struct *copy_process(unsigned long clone_flags, p->bts = NULL; - p->stack_start = stack_start; - /* Perform scheduler related setup. Assign this task to a CPU. */ sched_fork(p, clone_flags); -- cgit v1.2.3-70-g09d2 From 3a370ca1dcf8c80aff7a0a21d6b0f50ca2a151e9 Mon Sep 17 00:00:00 2001 From: Don Prince Date: Wed, 12 May 2010 15:18:59 +0200 Subject: HID: Prodikeys PC-MIDI HID Driver A specialised HID driver for the Creative Prodikeys PC-MIDI USB Keyboard. The Prodikeys PC-MIDI is a multifunction keyboard comprising a qwerty keyboard, multimedia keys and a touch sensitive musical keyboard. The specialised HID driver adds full support for the musical keyboard and extra multimedia keys which are not currently handled by the default HID driver. The specialised HID driver interfaces with ALSA, and presents the midi keyboard as a rawmidi device. Sustain duration, octave shifting and the midi output channel can be read/written form userspace via sysfs. Signed-off-by: Don Prince ALSA parts: Acked-by: Clemens Ladisch Signed-off-by: Jiri Kosina --- .../ABI/testing/sysfs-driver-hid-prodikeys | 29 + drivers/hid/Kconfig | 16 + drivers/hid/Makefile | 1 + drivers/hid/hid-core.c | 1 + drivers/hid/hid-ids.h | 3 + drivers/hid/hid-prodikeys.c | 910 +++++++++++++++++++++ 6 files changed, 960 insertions(+) create mode 100644 Documentation/ABI/testing/sysfs-driver-hid-prodikeys create mode 100644 drivers/hid/hid-prodikeys.c (limited to 'Documentation') diff --git a/Documentation/ABI/testing/sysfs-driver-hid-prodikeys b/Documentation/ABI/testing/sysfs-driver-hid-prodikeys new file mode 100644 index 00000000000..05d988c29a8 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-hid-prodikeys @@ -0,0 +1,29 @@ +What: /sys/bus/hid/drivers/prodikeys/.../channel +Date: April 2010 +KernelVersion: 2.6.34 +Contact: Don Prince +Description: + Allows control (via software) the midi channel to which + that the pc-midi keyboard will output.midi data. + Range: 0..15 + Type: Read/write +What: /sys/bus/hid/drivers/prodikeys/.../sustain +Date: April 2010 +KernelVersion: 2.6.34 +Contact: Don Prince +Description: + Allows control (via software) the sustain duration of a + note held by the pc-midi driver. + 0 means sustain mode is disabled. + Range: 0..5000 (milliseconds) + Type: Read/write +What: /sys/bus/hid/drivers/prodikeys/.../octave +Date: April 2010 +KernelVersion: 2.6.34 +Contact: Don Prince +Description: + Controls the octave shift modifier in the pc-midi driver. + The octave can be shifted via software up/down 2 octaves. + 0 means the no ocatve shift. + Range: -2..2 (minus 2 to plus 2) + Type: Read/Write diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index 71d4c070362..0c3eee94f5a 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -100,6 +100,22 @@ config HID_CHICONY ---help--- Support for Chicony Tactical pad. +config HID_PRODIKEYS + tristate "Prodikeys PC-MIDI Keyboard support" if EMBEDDED + depends on USB_HID && SND + select SND_RAWMIDI + default !EMBEDDED + ---help--- + Support for Prodikeys PC-MIDI Keyboard device support. + Say Y here to enable support for this device. + - Prodikeys PC-MIDI keyboard. + The Prodikeys PC-MIDI acts as a USB Audio device, with one MIDI + input and one MIDI output. These MIDI jacks appear as + a sound "card" in the ALSA sound system. + Note: if you say N here, this device will still function as a basic + multimedia keyboard, but will lack support for the musical keyboard + and some additional multimedia keys. + config HID_CYPRESS tristate "Cypress" if EMBEDDED depends on USB_HID diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile index 0b2618f092c..f637b388030 100644 --- a/drivers/hid/Makefile +++ b/drivers/hid/Makefile @@ -41,6 +41,7 @@ obj-$(CONFIG_HID_MONTEREY) += hid-monterey.o obj-$(CONFIG_HID_MOSART) += hid-mosart.o obj-$(CONFIG_HID_NTRIG) += hid-ntrig.o obj-$(CONFIG_HID_ORTEK) += hid-ortek.o +obj-$(CONFIG_HID_PRODIKEYS) += hid-prodikeys.o obj-$(CONFIG_HID_QUANTA) += hid-quanta.o obj-$(CONFIG_HID_PANTHERLORD) += hid-pl.o obj-$(CONFIG_HID_PETALYNX) += hid-petalynx.o diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 143e788b729..1c57a9391c8 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1293,6 +1293,7 @@ static const struct hid_device_id hid_blacklist[] = { { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) }, { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) }, { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_TACTICAL_PAD) }, + { HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, USB_DEVICE_ID_PRODIKEYS_PCMIDI) }, { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_1) }, { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_2) }, { HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_BARCODE_3) }, diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 09d27649a0f..50134431aee 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -148,6 +148,9 @@ #define USB_DEVICE_ID_CODEMERCS_IOW_FIRST 0x1500 #define USB_DEVICE_ID_CODEMERCS_IOW_LAST 0x15ff +#define USB_VENDOR_ID_CREATIVELABS 0x041e +#define USB_DEVICE_ID_PRODIKEYS_PCMIDI 0x2801 + #define USB_VENDOR_ID_CYGNAL 0x10c4 #define USB_DEVICE_ID_CYGNAL_RADIO_SI470X 0x818a diff --git a/drivers/hid/hid-prodikeys.c b/drivers/hid/hid-prodikeys.c new file mode 100644 index 00000000000..845f428b809 --- /dev/null +++ b/drivers/hid/hid-prodikeys.c @@ -0,0 +1,910 @@ +/* + * HID driver for the Prodikeys PC-MIDI Keyboard + * providing midi & extra multimedia keys functionality + * + * Copyright (c) 2009 Don Prince + * + * Controls for Octave Shift Up/Down, Channel, and + * Sustain Duration available via sysfs. + * + */ + +/* + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the Free + * Software Foundation; either version 2 of the License, or (at your option) + * any later version. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include "usbhid/usbhid.h" +#include "hid-ids.h" + + +#define pk_debug(format, arg...) \ + pr_debug("hid-prodikeys: " format "\n" , ## arg) +#define pk_error(format, arg...) \ + pr_err("hid-prodikeys: " format "\n" , ## arg) + +struct pcmidi_snd; + +struct pk_device { + unsigned long quirks; + + struct hid_device *hdev; + struct pcmidi_snd *pm; /* pcmidi device context */ +}; + +struct pcmidi_snd; + +struct pcmidi_sustain { + unsigned long in_use; + struct pcmidi_snd *pm; + struct timer_list timer; + unsigned char status; + unsigned char note; + unsigned char velocity; +}; + +#define PCMIDI_SUSTAINED_MAX 32 +struct pcmidi_snd { + struct pk_device *pk; + unsigned short ifnum; + struct hid_report *pcmidi_report6; + struct input_dev *input_ep82; + unsigned short midi_mode; + unsigned short midi_sustain_mode; + unsigned short midi_sustain; + unsigned short midi_channel; + short midi_octave; + struct pcmidi_sustain sustained_notes[PCMIDI_SUSTAINED_MAX]; + unsigned short fn_state; + unsigned short last_key[24]; + spinlock_t rawmidi_in_lock; + struct snd_card *card; + struct snd_rawmidi *rwmidi; + struct snd_rawmidi_substream *in_substream; + struct snd_rawmidi_substream *out_substream; + unsigned long in_triggered; + unsigned long out_active; +}; + +#define PK_QUIRK_NOGET 0x00010000 +#define PCMIDI_MIDDLE_C 60 +#define PCMIDI_CHANNEL_MIN 0 +#define PCMIDI_CHANNEL_MAX 15 +#define PCMIDI_OCTAVE_MIN (-2) +#define PCMIDI_OCTAVE_MAX 2 +#define PCMIDI_SUSTAIN_MIN 0 +#define PCMIDI_SUSTAIN_MAX 5000 + +static const char shortname[] = "PC-MIDI"; +static const char longname[] = "Prodikeys PC-MIDI Keyboard"; + +static int index[SNDRV_CARDS] = SNDRV_DEFAULT_IDX; +static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR; +static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP; + +module_param_array(index, int, NULL, 0444); +module_param_array(id, charp, NULL, 0444); +module_param_array(enable, bool, NULL, 0444); +MODULE_PARM_DESC(index, "Index value for the PC-MIDI virtual audio driver"); +MODULE_PARM_DESC(id, "ID string for the PC-MIDI virtual audio driver"); +MODULE_PARM_DESC(enable, "Enable for the PC-MIDI virtual audio driver"); + + +/* Output routine for the sysfs channel file */ +static ssize_t show_channel(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev); + + dbg_hid("pcmidi sysfs read channel=%u\n", pk->pm->midi_channel); + + return sprintf(buf, "%u (min:%u, max:%u)\n", pk->pm->midi_channel, + PCMIDI_CHANNEL_MIN, PCMIDI_CHANNEL_MAX); +} + +/* Input routine for the sysfs channel file */ +static ssize_t store_channel(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev); + + unsigned channel = 0; + + if (sscanf(buf, "%u", &channel) > 0 && channel <= PCMIDI_CHANNEL_MAX) { + dbg_hid("pcmidi sysfs write channel=%u\n", channel); + pk->pm->midi_channel = channel; + return strlen(buf); + } + return -EINVAL; +} + +static DEVICE_ATTR(channel, S_IRUGO | S_IWUGO, show_channel, + store_channel); + +static struct device_attribute *sysfs_device_attr_channel = { + &dev_attr_channel, + }; + +/* Output routine for the sysfs sustain file */ +static ssize_t show_sustain(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev); + + dbg_hid("pcmidi sysfs read sustain=%u\n", pk->pm->midi_sustain); + + return sprintf(buf, "%u (off:%u, max:%u (ms))\n", pk->pm->midi_sustain, + PCMIDI_SUSTAIN_MIN, PCMIDI_SUSTAIN_MAX); +} + +/* Input routine for the sysfs sustain file */ +static ssize_t store_sustain(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev); + + unsigned sustain = 0; + + if (sscanf(buf, "%u", &sustain) > 0 && sustain <= PCMIDI_SUSTAIN_MAX) { + dbg_hid("pcmidi sysfs write sustain=%u\n", sustain); + pk->pm->midi_sustain = sustain; + pk->pm->midi_sustain_mode = + (0 == sustain || !pk->pm->midi_mode) ? 0 : 1; + return strlen(buf); + } + return -EINVAL; +} + +static DEVICE_ATTR(sustain, S_IRUGO | S_IWUGO, show_sustain, + store_sustain); + +static struct device_attribute *sysfs_device_attr_sustain = { + &dev_attr_sustain, + }; + +/* Output routine for the sysfs octave file */ +static ssize_t show_octave(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev); + + dbg_hid("pcmidi sysfs read octave=%d\n", pk->pm->midi_octave); + + return sprintf(buf, "%d (min:%d, max:%d)\n", pk->pm->midi_octave, + PCMIDI_OCTAVE_MIN, PCMIDI_OCTAVE_MAX); +} + +/* Input routine for the sysfs octave file */ +static ssize_t store_octave(struct device *dev, + struct device_attribute *attr, const char *buf, size_t count) +{ + struct hid_device *hdev = container_of(dev, struct hid_device, dev); + struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev); + + int octave = 0; + + if (sscanf(buf, "%d", &octave) > 0 && + octave >= PCMIDI_OCTAVE_MIN && octave <= PCMIDI_OCTAVE_MAX) { + dbg_hid("pcmidi sysfs write octave=%d\n", octave); + pk->pm->midi_octave = octave; + return strlen(buf); + } + return -EINVAL; +} + +static DEVICE_ATTR(octave, S_IRUGO | S_IWUGO, show_octave, + store_octave); + +static struct device_attribute *sysfs_device_attr_octave = { + &dev_attr_octave, + }; + + +static void pcmidi_send_note(struct pcmidi_snd *pm, + unsigned char status, unsigned char note, unsigned char velocity) +{ + unsigned long flags; + unsigned char buffer[3]; + + buffer[0] = status; + buffer[1] = note; + buffer[2] = velocity; + + spin_lock_irqsave(&pm->rawmidi_in_lock, flags); + + if (!pm->in_substream) + goto drop_note; + if (!test_bit(pm->in_substream->number, &pm->in_triggered)) + goto drop_note; + + snd_rawmidi_receive(pm->in_substream, buffer, 3); + +drop_note: + spin_unlock_irqrestore(&pm->rawmidi_in_lock, flags); + + return; +} + +void pcmidi_sustained_note_release(unsigned long data) +{ + struct pcmidi_sustain *pms = (struct pcmidi_sustain *)data; + + pcmidi_send_note(pms->pm, pms->status, pms->note, pms->velocity); + pms->in_use = 0; +} + +void init_sustain_timers(struct pcmidi_snd *pm) +{ + struct pcmidi_sustain *pms; + unsigned i; + + for (i = 0; i < PCMIDI_SUSTAINED_MAX; i++) { + pms = &pm->sustained_notes[i]; + pms->in_use = 0; + pms->pm = pm; + setup_timer(&pms->timer, pcmidi_sustained_note_release, + (unsigned long)pms); + } +} + +void stop_sustain_timers(struct pcmidi_snd *pm) +{ + struct pcmidi_sustain *pms; + unsigned i; + + for (i = 0; i < PCMIDI_SUSTAINED_MAX; i++) { + pms = &pm->sustained_notes[i]; + pms->in_use = 1; + del_timer_sync(&pms->timer); + } +} + +static int pcmidi_get_output_report(struct pcmidi_snd *pm) +{ + struct hid_device *hdev = pm->pk->hdev; + struct hid_report *report; + + list_for_each_entry(report, + &hdev->report_enum[HID_OUTPUT_REPORT].report_list, list) { + if (!(6 == report->id)) + continue; + + if (report->maxfield < 1) { + dev_err(&hdev->dev, "output report is empty\n"); + break; + } + if (report->field[0]->report_count != 2) { + dev_err(&hdev->dev, "field count too low\n"); + break; + } + pm->pcmidi_report6 = report; + return 0; + } + /* should never get here */ + return -ENODEV; +} + +static void pcmidi_submit_output_report(struct pcmidi_snd *pm, int state) +{ + struct hid_device *hdev = pm->pk->hdev; + struct hid_report *report = pm->pcmidi_report6; + report->field[0]->value[0] = 0x01; + report->field[0]->value[1] = state; + + usbhid_submit_report(hdev, report, USB_DIR_OUT); +} + +static int pcmidi_handle_report1(struct pcmidi_snd *pm, u8 *data) +{ + u32 bit_mask; + + bit_mask = data[1]; + bit_mask = (bit_mask << 8) | data[2]; + bit_mask = (bit_mask << 8) | data[3]; + + dbg_hid("pcmidi mode: %d\n", pm->midi_mode); + + /*KEY_MAIL or octave down*/ + if (pm->midi_mode && bit_mask == 0x004000) { + /* octave down */ + pm->midi_octave--; + if (pm->midi_octave < -2) + pm->midi_octave = -2; + dbg_hid("pcmidi mode: %d octave: %d\n", + pm->midi_mode, pm->midi_octave); + return 1; + } + /*KEY_WWW or sustain*/ + else if (pm->midi_mode && bit_mask == 0x000004) { + /* sustain on/off*/ + pm->midi_sustain_mode ^= 0x1; + return 1; + } + + return 0; /* continue key processing */ +} + +static int pcmidi_handle_report3(struct pcmidi_snd *pm, u8 *data, int size) +{ + struct pcmidi_sustain *pms; + unsigned i, j; + unsigned char status, note, velocity; + + unsigned num_notes = (size-1)/2; + for (j = 0; j < num_notes; j++) { + note = data[j*2+1]; + velocity = data[j*2+2]; + + if (note < 0x81) { /* note on */ + status = 128 + 16 + pm->midi_channel; /* 1001nnnn */ + note = note - 0x54 + PCMIDI_MIDDLE_C + + (pm->midi_octave * 12); + if (0 == velocity) + velocity = 1; /* force note on */ + } else { /* note off */ + status = 128 + pm->midi_channel; /* 1000nnnn */ + note = note - 0x94 + PCMIDI_MIDDLE_C + + (pm->midi_octave*12); + + if (pm->midi_sustain_mode) { + for (i = 0; i < PCMIDI_SUSTAINED_MAX; i++) { + pms = &pm->sustained_notes[i]; + if (!pms->in_use) { + pms->status = status; + pms->note = note; + pms->velocity = velocity; + pms->in_use = 1; + + mod_timer(&pms->timer, + jiffies + + msecs_to_jiffies(pm->midi_sustain)); + return 1; + } + } + } + } + pcmidi_send_note(pm, status, note, velocity); + } + + return 1; +} + +static int pcmidi_handle_report4(struct pcmidi_snd *pm, u8 *data) +{ + unsigned key; + u32 bit_mask; + u32 bit_index; + + bit_mask = data[1]; + bit_mask = (bit_mask << 8) | data[2]; + bit_mask = (bit_mask << 8) | data[3]; + + /* break keys */ + for (bit_index = 0; bit_index < 24; bit_index++) { + key = pm->last_key[bit_index]; + if (!((0x01 << bit_index) & bit_mask)) { + input_event(pm->input_ep82, EV_KEY, + pm->last_key[bit_index], 0); + pm->last_key[bit_index] = 0; + } + } + + /* make keys */ + for (bit_index = 0; bit_index < 24; bit_index++) { + key = 0; + switch ((0x01 << bit_index) & bit_mask) { + case 0x000010: /* Fn lock*/ + pm->fn_state ^= 0x000010; + if (pm->fn_state) + pcmidi_submit_output_report(pm, 0xc5); + else + pcmidi_submit_output_report(pm, 0xc6); + continue; + case 0x020000: /* midi launcher..send a key (qwerty) or not? */ + pcmidi_submit_output_report(pm, 0xc1); + pm->midi_mode ^= 0x01; + + dbg_hid("pcmidi mode: %d\n", pm->midi_mode); + continue; + case 0x100000: /* KEY_MESSENGER or octave up */ + dbg_hid("pcmidi mode: %d\n", pm->midi_mode); + if (pm->midi_mode) { + pm->midi_octave++; + if (pm->midi_octave > 2) + pm->midi_octave = 2; + dbg_hid("pcmidi mode: %d octave: %d\n", + pm->midi_mode, pm->midi_octave); + continue; + } else + key = KEY_MESSENGER; + break; + case 0x400000: + key = KEY_CALENDAR; + break; + case 0x080000: + key = KEY_ADDRESSBOOK; + break; + case 0x040000: + key = KEY_DOCUMENTS; + break; + case 0x800000: + key = KEY_WORDPROCESSOR; + break; + case 0x200000: + key = KEY_SPREADSHEET; + break; + case 0x010000: + key = KEY_COFFEE; + break; + case 0x000100: + key = KEY_HELP; + break; + case 0x000200: + key = KEY_SEND; + break; + case 0x000400: + key = KEY_REPLY; + break; + case 0x000800: + key = KEY_FORWARDMAIL; + break; + case 0x001000: + key = KEY_NEW; + break; + case 0x002000: + key = KEY_OPEN; + break; + case 0x004000: + key = KEY_CLOSE; + break; + case 0x008000: + key = KEY_SAVE; + break; + case 0x000001: + key = KEY_UNDO; + break; + case 0x000002: + key = KEY_REDO; + break; + case 0x000004: + key = KEY_SPELLCHECK; + break; + case 0x000008: + key = KEY_PRINT; + break; + } + if (key) { + input_event(pm->input_ep82, EV_KEY, key, 1); + pm->last_key[bit_index] = key; + } + } + + return 1; +} + +int pcmidi_handle_report( + struct pcmidi_snd *pm, unsigned report_id, u8 *data, int size) +{ + int ret = 0; + + switch (report_id) { + case 0x01: /* midi keys (qwerty)*/ + ret = pcmidi_handle_report1(pm, data); + break; + case 0x03: /* midi keyboard (musical)*/ + ret = pcmidi_handle_report3(pm, data, size); + break; + case 0x04: /* multimedia/midi keys (qwerty)*/ + ret = pcmidi_handle_report4(pm, data); + break; + } + return ret; +} + +void pcmidi_setup_extra_keys(struct pcmidi_snd *pm, struct input_dev *input) +{ + /* reassigned functionality for N/A keys + MY PICTURES => KEY_WORDPROCESSOR + MY MUSIC=> KEY_SPREADSHEET + */ + unsigned int keys[] = { + KEY_FN, + KEY_MESSENGER, KEY_CALENDAR, + KEY_ADDRESSBOOK, KEY_DOCUMENTS, + KEY_WORDPROCESSOR, + KEY_SPREADSHEET, + KEY_COFFEE, + KEY_HELP, KEY_SEND, + KEY_REPLY, KEY_FORWARDMAIL, + KEY_NEW, KEY_OPEN, + KEY_CLOSE, KEY_SAVE, + KEY_UNDO, KEY_REDO, + KEY_SPELLCHECK, KEY_PRINT, + 0 + }; + + unsigned int *pkeys = &keys[0]; + unsigned short i; + + if (pm->ifnum != 1) /* only set up ONCE for interace 1 */ + return; + + pm->input_ep82 = input; + + for (i = 0; i < 24; i++) + pm->last_key[i] = 0; + + while (*pkeys != 0) { + set_bit(*pkeys, pm->input_ep82->keybit); + ++pkeys; + } +} + +static int pcmidi_set_operational(struct pcmidi_snd *pm) +{ + if (pm->ifnum != 1) + return 0; /* only set up ONCE for interace 1 */ + + pcmidi_get_output_report(pm); + pcmidi_submit_output_report(pm, 0xc1); + return 0; +} + +static int pcmidi_snd_free(struct snd_device *dev) +{ + return 0; +} + +static int pcmidi_in_open(struct snd_rawmidi_substream *substream) +{ + struct pcmidi_snd *pm = substream->rmidi->private_data; + + dbg_hid("pcmidi in open\n"); + pm->in_substream = substream; + return 0; +} + +static int pcmidi_in_close(struct snd_rawmidi_substream *substream) +{ + dbg_hid("pcmidi in close\n"); + return 0; +} + +static void pcmidi_in_trigger(struct snd_rawmidi_substream *substream, int up) +{ + struct pcmidi_snd *pm = substream->rmidi->private_data; + + dbg_hid("pcmidi in trigger %d\n", up); + + pm->in_triggered = up; +} + +static struct snd_rawmidi_ops pcmidi_in_ops = { + .open = pcmidi_in_open, + .close = pcmidi_in_close, + .trigger = pcmidi_in_trigger +}; + +int pcmidi_snd_initialise(struct pcmidi_snd *pm) +{ + static int dev; + struct snd_card *card; + struct snd_rawmidi *rwmidi; + int err; + + static struct snd_device_ops ops = { + .dev_free = pcmidi_snd_free, + }; + + if (pm->ifnum != 1) + return 0; /* only set up midi device ONCE for interace 1 */ + + if (dev >= SNDRV_CARDS) + return -ENODEV; + + if (!enable[dev]) { + dev++; + return -ENOENT; + } + + /* Setup sound card */ + + err = snd_card_create(index[dev], id[dev], THIS_MODULE, 0, &card); + if (err < 0) { + pk_error("failed to create pc-midi sound card\n"); + err = -ENOMEM; + goto fail; + } + pm->card = card; + + /* Setup sound device */ + err = snd_device_new(card, SNDRV_DEV_LOWLEVEL, pm, &ops); + if (err < 0) { + pk_error("failed to create pc-midi sound device: error %d\n", + err); + goto fail; + } + + strncpy(card->driver, shortname, sizeof(card->driver)); + strncpy(card->shortname, shortname, sizeof(card->shortname)); + strncpy(card->longname, longname, sizeof(card->longname)); + + /* Set up rawmidi */ + err = snd_rawmidi_new(card, card->shortname, 0, + 0, 1, &rwmidi); + if (err < 0) { + pk_error("failed to create pc-midi rawmidi device: error %d\n", + err); + goto fail; + } + pm->rwmidi = rwmidi; + strncpy(rwmidi->name, card->shortname, sizeof(rwmidi->name)); + rwmidi->info_flags = SNDRV_RAWMIDI_INFO_INPUT; + rwmidi->private_data = pm; + + snd_rawmidi_set_ops(rwmidi, SNDRV_RAWMIDI_STREAM_INPUT, + &pcmidi_in_ops); + + snd_card_set_dev(card, &pm->pk->hdev->dev); + + /* create sysfs variables */ + err = device_create_file(&pm->pk->hdev->dev, + sysfs_device_attr_channel); + if (err < 0) { + pk_error("failed to create sysfs attribute channel: error %d\n", + err); + goto fail; + } + + err = device_create_file(&pm->pk->hdev->dev, + sysfs_device_attr_sustain); + if (err < 0) { + pk_error("failed to create sysfs attribute sustain: error %d\n", + err); + goto fail_attr_sustain; + } + + err = device_create_file(&pm->pk->hdev->dev, + sysfs_device_attr_octave); + if (err < 0) { + pk_error("failed to create sysfs attribute octave: error %d\n", + err); + goto fail_attr_octave; + } + + spin_lock_init(&pm->rawmidi_in_lock); + + init_sustain_timers(pm); + pcmidi_set_operational(pm); + + /* register it */ + err = snd_card_register(card); + if (err < 0) { + pk_error("failed to register pc-midi sound card: error %d\n", + err); + goto fail_register; + } + + dbg_hid("pcmidi_snd_initialise finished ok\n"); + return 0; + +fail_register: + stop_sustain_timers(pm); + device_remove_file(&pm->pk->hdev->dev, sysfs_device_attr_octave); +fail_attr_octave: + device_remove_file(&pm->pk->hdev->dev, sysfs_device_attr_sustain); +fail_attr_sustain: + device_remove_file(&pm->pk->hdev->dev, sysfs_device_attr_channel); +fail: + if (pm->card) { + snd_card_free(pm->card); + pm->card = NULL; + } + return err; +} + +int pcmidi_snd_terminate(struct pcmidi_snd *pm) +{ + if (pm->card) { + stop_sustain_timers(pm); + + device_remove_file(&pm->pk->hdev->dev, + sysfs_device_attr_channel); + device_remove_file(&pm->pk->hdev->dev, + sysfs_device_attr_sustain); + device_remove_file(&pm->pk->hdev->dev, + sysfs_device_attr_octave); + + snd_card_disconnect(pm->card); + snd_card_free_when_closed(pm->card); + } + + return 0; +} + +/* + * PC-MIDI report descriptor for report id is wrong. + */ +static void pk_report_fixup(struct hid_device *hdev, __u8 *rdesc, + unsigned int rsize) +{ + if (rsize == 178 && + rdesc[111] == 0x06 && rdesc[112] == 0x00 && + rdesc[113] == 0xff) { + dev_info(&hdev->dev, "fixing up pc-midi keyboard report " + "descriptor\n"); + + rdesc[144] = 0x18; /* report 4: was 0x10 report count */ + } +} + +static int pk_input_mapping(struct hid_device *hdev, struct hid_input *hi, + struct hid_field *field, struct hid_usage *usage, + unsigned long **bit, int *max) +{ + struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev); + struct pcmidi_snd *pm; + + pm = pk->pm; + + if (HID_UP_MSVENDOR == (usage->hid & HID_USAGE_PAGE) && + 1 == pm->ifnum) { + pcmidi_setup_extra_keys(pm, hi->input); + return 0; + } + + return 0; +} + + +static int pk_raw_event(struct hid_device *hdev, struct hid_report *report, + u8 *data, int size) +{ + struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev); + int ret = 0; + + if (1 == pk->pm->ifnum) { + if (report->id == data[0]) + switch (report->id) { + case 0x01: /* midi keys (qwerty)*/ + case 0x03: /* midi keyboard (musical)*/ + case 0x04: /* extra/midi keys (qwerty)*/ + ret = pcmidi_handle_report(pk->pm, + report->id, data, size); + break; + } + } + + return ret; +} + +static int pk_probe(struct hid_device *hdev, const struct hid_device_id *id) +{ + int ret; + struct usb_interface *intf = to_usb_interface(hdev->dev.parent); + unsigned short ifnum = intf->cur_altsetting->desc.bInterfaceNumber; + unsigned long quirks = id->driver_data; + struct pk_device *pk; + struct pcmidi_snd *pm = NULL; + + pk = kzalloc(sizeof(*pk), GFP_KERNEL); + if (pk == NULL) { + dev_err(&hdev->dev, "prodikeys: can't alloc descriptor\n"); + return -ENOMEM; + } + + pk->hdev = hdev; + + pm = kzalloc(sizeof(*pm), GFP_KERNEL); + if (pm == NULL) { + dev_err(&hdev->dev, + "prodikeys: can't alloc descriptor\n"); + ret = -ENOMEM; + goto err_free; + } + + pm->pk = pk; + pk->pm = pm; + pm->ifnum = ifnum; + + hid_set_drvdata(hdev, pk); + + ret = hid_parse(hdev); + if (ret) { + dev_err(&hdev->dev, "prodikeys: hid parse failed\n"); + goto err_free; + } + + if (quirks & PK_QUIRK_NOGET) { /* hid_parse cleared all the quirks */ + hdev->quirks |= HID_QUIRK_NOGET; + } + + ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); + if (ret) { + dev_err(&hdev->dev, "prodikeys: hw start failed\n"); + goto err_free; + } + + ret = pcmidi_snd_initialise(pm); + if (ret < 0) + goto err_stop; + + return 0; +err_stop: + hid_hw_stop(hdev); +err_free: + if (pm != NULL) + kfree(pm); + + kfree(pk); + return ret; +} + +static void pk_remove(struct hid_device *hdev) +{ + struct pk_device *pk = (struct pk_device *)hid_get_drvdata(hdev); + struct pcmidi_snd *pm; + + pm = pk->pm; + if (pm) { + pcmidi_snd_terminate(pm); + kfree(pm); + } + + hid_hw_stop(hdev); + + kfree(pk); +} + +static const struct hid_device_id pk_devices[] = { + {HID_USB_DEVICE(USB_VENDOR_ID_CREATIVELABS, + USB_DEVICE_ID_PRODIKEYS_PCMIDI), + .driver_data = PK_QUIRK_NOGET}, + { } +}; +MODULE_DEVICE_TABLE(hid, pk_devices); + +static struct hid_driver pk_driver = { + .name = "prodikeys", + .id_table = pk_devices, + .report_fixup = pk_report_fixup, + .input_mapping = pk_input_mapping, + .raw_event = pk_raw_event, + .probe = pk_probe, + .remove = pk_remove, +}; + +static int pk_init(void) +{ + int ret; + + ret = hid_register_driver(&pk_driver); + if (ret) + printk(KERN_ERR "can't register prodikeys driver\n"); + + return ret; +} + +static void pk_exit(void) +{ + hid_unregister_driver(&pk_driver); +} + +module_init(pk_init); +module_exit(pk_exit); +MODULE_LICENSE("GPL"); -- cgit v1.2.3-70-g09d2 From a71ba09655d197f22938fffa6f5d210ff5134f98 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Thu, 13 May 2010 18:42:25 +0900 Subject: sh: fixup the docbook paths for clock framework shuffling. Now that the definitions have been consolidated in an alternate header, update the template accordingly. Signed-off-by: Paul Mundt --- Documentation/DocBook/sh.tmpl | 10 +++++++--- include/linux/sh_clk.h | 3 +-- 2 files changed, 8 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/DocBook/sh.tmpl b/Documentation/DocBook/sh.tmpl index 0c3dc4c69dd..d858d92cf6d 100644 --- a/Documentation/DocBook/sh.tmpl +++ b/Documentation/DocBook/sh.tmpl @@ -19,13 +19,17 @@ - 2008 + 2008-2010 Paul Mundt - 2008 + 2008-2010 Renesas Technology Corp. + + 2010 + Renesas Electronics Corp. + @@ -77,7 +81,7 @@ Clock Framework Extensions -!Iarch/sh/include/asm/clock.h +!Iinclude/linux/sh_clk.h Machine Specific Interfaces diff --git a/include/linux/sh_clk.h b/include/linux/sh_clk.h index 6d7de242be1..1636d1e2a5f 100644 --- a/include/linux/sh_clk.h +++ b/include/linux/sh_clk.h @@ -46,7 +46,7 @@ struct clk { #define CLK_ENABLE_ON_INIT (1 << 0) -/* arch/sh/kernel/cpu/clock.c */ +/* drivers/sh/clk.c */ unsigned long followparent_recalc(struct clk *); void recalculate_root_clocks(void); void propagate_rate(struct clk *); @@ -55,7 +55,6 @@ int clk_register(struct clk *); void clk_unregister(struct clk *); void clk_enable_init_clocks(void); -/* the exported API, in addition to clk_set_rate */ /** * clk_set_rate_ex - set the clock rate for a clock source, with additional parameter * @clk: clock source -- cgit v1.2.3-70-g09d2 From 4dc6ec00f6347b72312fa41dfc587d5302b05544 Mon Sep 17 00:00:00 2001 From: "J. Bruce Fields" Date: Mon, 19 Apr 2010 15:11:28 -0400 Subject: nfsd4: implement reclaim_complete This is a mandatory operation. Also, here (not in open) is where we should be committing the reboot recovery information. Signed-off-by: J. Bruce Fields --- Documentation/filesystems/nfs/nfs41-server.txt | 2 +- fs/nfsd/nfs4proc.c | 5 ++++ fs/nfsd/nfs4state.c | 33 +++++++++++++++++++++++--- fs/nfsd/nfs4xdr.c | 12 +++++++++- fs/nfsd/xdr4.h | 6 +++++ 5 files changed, 53 insertions(+), 5 deletions(-) (limited to 'Documentation') diff --git a/Documentation/filesystems/nfs/nfs41-server.txt b/Documentation/filesystems/nfs/nfs41-server.txt index 6a53a84afc7..04884914a1c 100644 --- a/Documentation/filesystems/nfs/nfs41-server.txt +++ b/Documentation/filesystems/nfs/nfs41-server.txt @@ -137,7 +137,7 @@ NS*| OPENATTR | OPT | | Section 18.17 | | READ | REQ | | Section 18.22 | | READDIR | REQ | | Section 18.23 | | READLINK | OPT | | Section 18.24 | -NS | RECLAIM_COMPLETE | REQ | | Section 18.51 | + | RECLAIM_COMPLETE | REQ | | Section 18.51 | | RELEASE_LOCKOWNER | MNI | | N/A | | REMOVE | REQ | | Section 18.25 | | RENAME | REQ | | Section 18.26 | diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c index e2dc9608281..59ec449b0c7 100644 --- a/fs/nfsd/nfs4proc.c +++ b/fs/nfsd/nfs4proc.c @@ -1312,6 +1312,11 @@ static struct nfsd4_operation nfsd4_ops[] = { .op_flags = ALLOWED_WITHOUT_FH | ALLOWED_AS_FIRST_OP, .op_name = "OP_SEQUENCE", }, + [OP_RECLAIM_COMPLETE] = { + .op_func = (nfsd4op_func)nfsd4_reclaim_complete, + .op_flags = ALLOWED_WITHOUT_FH, + .op_name = "OP_RECLAIM_COMPLETE", + }, }; static const char *nfsd4_op_name(unsigned opnum) diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c index ede9dde52fe..84b0fe9a262 100644 --- a/fs/nfsd/nfs4state.c +++ b/fs/nfsd/nfs4state.c @@ -1501,6 +1501,35 @@ out: return status; } +__be32 +nfsd4_reclaim_complete(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_reclaim_complete *rc) +{ + if (rc->rca_one_fs) { + if (!cstate->current_fh.fh_dentry) + return nfserr_nofilehandle; + /* + * We don't take advantage of the rca_one_fs case. + * That's OK, it's optional, we can safely ignore it. + */ + return nfs_ok; + } + nfs4_lock_state(); + if (is_client_expired(cstate->session->se_client)) { + nfs4_unlock_state(); + /* + * The following error isn't really legal. + * But we only get here if the client just explicitly + * destroyed the client. Surely it no longer cares what + * error it gets back on an operation for the dead + * client. + */ + return nfserr_stale_clientid; + } + nfsd4_create_clid_dir(cstate->session->se_client); + nfs4_unlock_state(); + return nfs_ok; +} + __be32 nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate, struct nfsd4_setclientid *setclid) @@ -2510,10 +2539,8 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf } memcpy(&open->op_stateid, &stp->st_stateid, sizeof(stateid_t)); - if (nfsd4_has_session(&resp->cstate)) { + if (nfsd4_has_session(&resp->cstate)) open->op_stateowner->so_confirmed = 1; - nfsd4_create_clid_dir(open->op_stateowner->so_client); - } /* * Attempt to hand out a delegation. No error return, because the diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c index 126d0caabb3..ac17a708023 100644 --- a/fs/nfsd/nfs4xdr.c +++ b/fs/nfsd/nfs4xdr.c @@ -1234,6 +1234,16 @@ nfsd4_decode_sequence(struct nfsd4_compoundargs *argp, DECODE_TAIL; } +static __be32 nfsd4_decode_reclaim_complete(struct nfsd4_compoundargs *argp, struct nfsd4_reclaim_complete *rc) +{ + DECODE_HEAD; + + READ_BUF(4); + READ32(rc->rca_one_fs); + + DECODE_TAIL; +} + static __be32 nfsd4_decode_noop(struct nfsd4_compoundargs *argp, void *p) { @@ -1346,7 +1356,7 @@ static nfsd4_dec nfsd41_dec_ops[] = { [OP_TEST_STATEID] = (nfsd4_dec)nfsd4_decode_notsupp, [OP_WANT_DELEGATION] = (nfsd4_dec)nfsd4_decode_notsupp, [OP_DESTROY_CLIENTID] = (nfsd4_dec)nfsd4_decode_notsupp, - [OP_RECLAIM_COMPLETE] = (nfsd4_dec)nfsd4_decode_notsupp, + [OP_RECLAIM_COMPLETE] = (nfsd4_dec)nfsd4_decode_reclaim_complete, }; struct nfsd4_minorversion_ops { diff --git a/fs/nfsd/xdr4.h b/fs/nfsd/xdr4.h index c28958ec216..4d476ff08ae 100644 --- a/fs/nfsd/xdr4.h +++ b/fs/nfsd/xdr4.h @@ -381,6 +381,10 @@ struct nfsd4_destroy_session { struct nfs4_sessionid sessionid; }; +struct nfsd4_reclaim_complete { + u32 rca_one_fs; +}; + struct nfsd4_op { int opnum; __be32 status; @@ -421,6 +425,7 @@ struct nfsd4_op { struct nfsd4_create_session create_session; struct nfsd4_destroy_session destroy_session; struct nfsd4_sequence sequence; + struct nfsd4_reclaim_complete reclaim_complete; } u; struct nfs4_replay * replay; }; @@ -523,6 +528,7 @@ extern __be32 nfsd4_sequence(struct svc_rqst *, extern __be32 nfsd4_destroy_session(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_destroy_session *); +__be32 nfsd4_reclaim_complete(struct svc_rqst *, struct nfsd4_compound_state *, struct nfsd4_reclaim_complete *); extern __be32 nfsd4_process_open1(struct nfsd4_compound_state *, struct nfsd4_open *open); extern __be32 nfsd4_process_open2(struct svc_rqst *rqstp, -- cgit v1.2.3-70-g09d2 From 4047f8b1f9f4b4ecc4863f5f10cd9ba388b32a94 Mon Sep 17 00:00:00 2001 From: Jonathan Corbet Date: Wed, 12 May 2010 14:23:48 -0600 Subject: Add a document describing the padata interface This originally appeared as http://lwn.net/Articles/382257/. Cc: Steffen Klassert Signed-off-by: Jonathan Corbet --- Documentation/00-INDEX | 2 + Documentation/padata.txt | 107 +++++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 109 insertions(+) create mode 100644 Documentation/padata.txt (limited to 'Documentation') diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX index 06b982affe7..dd10b51b4e6 100644 --- a/Documentation/00-INDEX +++ b/Documentation/00-INDEX @@ -250,6 +250,8 @@ numastat.txt - info on how to read Numa policy hit/miss statistics in sysfs. oops-tracing.txt - how to decode those nasty internal kernel error dump messages. +padata.txt + - An introduction to the "padata" parallel execution API parisc/ - directory with info on using Linux on PA-RISC architecture. parport.txt diff --git a/Documentation/padata.txt b/Documentation/padata.txt new file mode 100644 index 00000000000..269d7d0d833 --- /dev/null +++ b/Documentation/padata.txt @@ -0,0 +1,107 @@ +The padata parallel execution mechanism +Last updated for 2.6.34 + +Padata is a mechanism by which the kernel can farm work out to be done in +parallel on multiple CPUs while retaining the ordering of tasks. It was +developed for use with the IPsec code, which needs to be able to perform +encryption and decryption on large numbers of packets without reordering +those packets. The crypto developers made a point of writing padata in a +sufficiently general fashion that it could be put to other uses as well. + +The first step in using padata is to set up a padata_instance structure for +overall control of how tasks are to be run: + + #include + + struct padata_instance *padata_alloc(const struct cpumask *cpumask, + struct workqueue_struct *wq); + +The cpumask describes which processors will be used to execute work +submitted to this instance. The workqueue wq is where the work will +actually be done; it should be a multithreaded queue, naturally. + +There are functions for enabling and disabling the instance: + + void padata_start(struct padata_instance *pinst); + void padata_stop(struct padata_instance *pinst); + +These functions literally do nothing beyond setting or clearing the +"padata_start() was called" flag; if that flag is not set, other functions +will refuse to work. + +The list of CPUs to be used can be adjusted with these functions: + + int padata_set_cpumask(struct padata_instance *pinst, + cpumask_var_t cpumask); + int padata_add_cpu(struct padata_instance *pinst, int cpu); + int padata_remove_cpu(struct padata_instance *pinst, int cpu); + +Changing the CPU mask has the look of an expensive operation, though, so it +probably should not be done with great frequency. + +Actually submitting work to the padata instance requires the creation of a +padata_priv structure: + + struct padata_priv { + /* Other stuff here... */ + void (*parallel)(struct padata_priv *padata); + void (*serial)(struct padata_priv *padata); + }; + +This structure will almost certainly be embedded within some larger +structure specific to the work to be done. Most its fields are private to +padata, but the structure should be zeroed at initialization time, and the +parallel() and serial() functions should be provided. Those functions will +be called in the process of getting the work done as we will see +momentarily. + +The submission of work is done with: + + int padata_do_parallel(struct padata_instance *pinst, + struct padata_priv *padata, int cb_cpu); + +The pinst and padata structures must be set up as described above; cb_cpu +specifies which CPU will be used for the final callback when the work is +done; it must be in the current instance's CPU mask. The return value from +padata_do_parallel() is a little strange; zero is an error return +indicating that the caller forgot the padata_start() formalities. -EBUSY +means that somebody, somewhere else is messing with the instance's CPU +mask, while -EINVAL is a complaint about cb_cpu not being in that CPU mask. +If all goes well, this function will return -EINPROGRESS, indicating that +the work is in progress. + +Each task submitted to padata_do_parallel() will, in turn, be passed to +exactly one call to the above-mentioned parallel() function, on one CPU, so +true parallelism is achieved by submitting multiple tasks. Despite the +fact that the workqueue is used to make these calls, parallel() is run with +software interrupts disabled and thus cannot sleep. The parallel() +function gets the padata_priv structure pointer as its lone parameter; +information about the actual work to be done is probably obtained by using +container_of() to find the enclosing structure. + +Note that parallel() has no return value; the padata subsystem assumes that +parallel() will take responsibility for the task from this point. The work +need not be completed during this call, but, if parallel() leaves work +outstanding, it should be prepared to be called again with a new job before +the previous one completes. When a task does complete, parallel() (or +whatever function actually finishes the job) should inform padata of the +fact with a call to: + + void padata_do_serial(struct padata_priv *padata); + +At some point in the future, padata_do_serial() will trigger a call to the +serial() function in the padata_priv structure. That call will happen on +the CPU requested in the initial call to padata_do_parallel(); it, too, is +done through the workqueue, but with local software interrupts disabled. +Note that this call may be deferred for a while since the padata code takes +pains to ensure that tasks are completed in the order in which they were +submitted. + +The one remaining function in the padata API should be called to clean up +when a padata instance is no longer needed: + + void padata_free(struct padata_instance *pinst); + +This function will busy-wait while any remaining tasks are completed, so it +might be best not to call it while there is work outstanding. Shutting +down the workqueue, if necessary, should be done separately. -- cgit v1.2.3-70-g09d2 From 294440887b32c58d220fb54b73b7a58079b78f20 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Thu, 22 Apr 2010 20:03:35 +0400 Subject: libata-sff: kill unused ata_bus_reset() ... since I see no callers of it. Signed-off-by: Sergei Shtylyov Signed-off-by: Jeff Garzik --- Documentation/DocBook/libata.tmpl | 6 +-- drivers/ata/libata-sff.c | 94 --------------------------------------- include/linux/libata.h | 1 - 3 files changed, 2 insertions(+), 99 deletions(-) (limited to 'Documentation') diff --git a/Documentation/DocBook/libata.tmpl b/Documentation/DocBook/libata.tmpl index ff3e5bec1c2..70b811e9f2c 100644 --- a/Documentation/DocBook/libata.tmpl +++ b/Documentation/DocBook/libata.tmpl @@ -81,16 +81,14 @@ void (*port_disable) (struct ata_port *); - Called from ata_bus_probe() and ata_bus_reset() error paths, - as well as when unregistering from the SCSI module (rmmod, hot - unplug). + Called from ata_bus_probe() error path, as well as when + unregistering from the SCSI module (rmmod, hot unplug). This function should do whatever needs to be done to take the port out of use. In most cases, ata_port_disable() can be used as this hook. Called from ata_bus_probe() on a failed probe. - Called from ata_bus_reset() on a failed bus reset. Called from ata_scsi_release(). diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index e3877b6843c..b31389605be 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -2631,100 +2631,6 @@ u8 ata_bmdma_status(struct ata_port *ap) } EXPORT_SYMBOL_GPL(ata_bmdma_status); -/** - * ata_bus_reset - reset host port and associated ATA channel - * @ap: port to reset - * - * This is typically the first time we actually start issuing - * commands to the ATA channel. We wait for BSY to clear, then - * issue EXECUTE DEVICE DIAGNOSTIC command, polling for its - * result. Determine what devices, if any, are on the channel - * by looking at the device 0/1 error register. Look at the signature - * stored in each device's taskfile registers, to determine if - * the device is ATA or ATAPI. - * - * LOCKING: - * PCI/etc. bus probe sem. - * Obtains host lock. - * - * SIDE EFFECTS: - * Sets ATA_FLAG_DISABLED if bus reset fails. - * - * DEPRECATED: - * This function is only for drivers which still use old EH and - * will be removed soon. - */ -void ata_bus_reset(struct ata_port *ap) -{ - struct ata_device *device = ap->link.device; - struct ata_ioports *ioaddr = &ap->ioaddr; - unsigned int slave_possible = ap->flags & ATA_FLAG_SLAVE_POSS; - u8 err; - unsigned int dev0, dev1 = 0, devmask = 0; - int rc; - - DPRINTK("ENTER, host %u, port %u\n", ap->print_id, ap->port_no); - - /* determine if device 0/1 are present */ - if (ap->flags & ATA_FLAG_SATA_RESET) - dev0 = 1; - else { - dev0 = ata_devchk(ap, 0); - if (slave_possible) - dev1 = ata_devchk(ap, 1); - } - - if (dev0) - devmask |= (1 << 0); - if (dev1) - devmask |= (1 << 1); - - /* select device 0 again */ - ap->ops->sff_dev_select(ap, 0); - - /* issue bus reset */ - if (ap->flags & ATA_FLAG_SRST) { - rc = ata_bus_softreset(ap, devmask, - ata_deadline(jiffies, 40000)); - if (rc && rc != -ENODEV) - goto err_out; - } - - /* - * determine by signature whether we have ATA or ATAPI devices - */ - device[0].class = ata_sff_dev_classify(&device[0], dev0, &err); - if ((slave_possible) && (err != 0x81)) - device[1].class = ata_sff_dev_classify(&device[1], dev1, &err); - - /* is double-select really necessary? */ - if (device[1].class != ATA_DEV_NONE) - ap->ops->sff_dev_select(ap, 1); - if (device[0].class != ATA_DEV_NONE) - ap->ops->sff_dev_select(ap, 0); - - /* if no devices were detected, disable this port */ - if ((device[0].class == ATA_DEV_NONE) && - (device[1].class == ATA_DEV_NONE)) - goto err_out; - - if (ap->flags & (ATA_FLAG_SATA_RESET | ATA_FLAG_SRST)) { - /* set up device control for ATA_FLAG_SATA_RESET */ - iowrite8(ap->ctl, ioaddr->ctl_addr); - ap->last_ctl = ap->ctl; - } - - DPRINTK("EXIT\n"); - return; - -err_out: - ata_port_printk(ap, KERN_ERR, "disabling port\n"); - ata_port_disable(ap); - - DPRINTK("EXIT\n"); -} -EXPORT_SYMBOL_GPL(ata_bus_reset); - #ifdef CONFIG_PCI /** diff --git a/include/linux/libata.h b/include/linux/libata.h index b2f2003b92e..4fa748e9bc0 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -1631,7 +1631,6 @@ extern void ata_bmdma_setup(struct ata_queued_cmd *qc); extern void ata_bmdma_start(struct ata_queued_cmd *qc); extern void ata_bmdma_stop(struct ata_queued_cmd *qc); extern u8 ata_bmdma_status(struct ata_port *ap); -extern void ata_bus_reset(struct ata_port *ap); #ifdef CONFIG_PCI extern int ata_pci_bmdma_clear_simplex(struct pci_dev *pdev); -- cgit v1.2.3-70-g09d2 From 41dec29bcb05eb8ec396f70ce791c6e3e4ce4712 Mon Sep 17 00:00:00 2001 From: Sergei Shtylyov Date: Fri, 7 May 2010 22:47:50 +0400 Subject: libata: introduce sff_set_devctl() method The set of libata's taskfile access methods is clearly incomplete as it lacks a method to write to the device control register -- which forces drivers like 'pata_bf54x' and 'pata_scc' to implement more "high level" (and more weighty) methods like freeze() and postreset(). So, introduce the optional sff_set_devctl() method which the drivers only have to implement if the standard iowrite8() can't be used (just like the existing sff_check_altstatus() method) and make use of it in the freeze() and postreset() method implementations (I could also have used it in softreset() method but it also reads other taskfile registers without using tf_read() making that quite pointless); this makes freeze() method implementations in the 'pata_bf54x' and 'pata_scc' methods virtually identical to ata_sff_freeze(), so we can get rid of them completely. Signed-off-by: Sergei Shtylyov Signed-off-by: Jeff Garzik --- Documentation/DocBook/libata.tmpl | 12 ++++++++++++ drivers/ata/libata-sff.c | 31 ++++++++++++++++++++++++------ drivers/ata/pata_bf54x.c | 40 +++++++++++++-------------------------- drivers/ata/pata_scc.c | 38 ++++++++++++------------------------- include/linux/libata.h | 1 + 5 files changed, 63 insertions(+), 59 deletions(-) (limited to 'Documentation') diff --git a/Documentation/DocBook/libata.tmpl b/Documentation/DocBook/libata.tmpl index 70b811e9f2c..828748c4e78 100644 --- a/Documentation/DocBook/libata.tmpl +++ b/Documentation/DocBook/libata.tmpl @@ -225,6 +225,18 @@ u8 (*sff_check_altstatus)(struct ata_port *ap); + Write specific ATA shadow register + +void (*sff_set_devctl)(struct ata_port *ap, u8 ctl); + + + + Write the device control ATA shadow register to the hardware. + Most drivers don't need to define this. + + + + Select ATA device on bus void (*sff_dev_select)(struct ata_port *ap, unsigned int device); diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c index b31389605be..31b495fcd96 100644 --- a/drivers/ata/libata-sff.c +++ b/drivers/ata/libata-sff.c @@ -445,6 +445,27 @@ int ata_sff_wait_ready(struct ata_link *link, unsigned long deadline) } EXPORT_SYMBOL_GPL(ata_sff_wait_ready); +/** + * ata_sff_set_devctl - Write device control reg + * @ap: port where the device is + * @ctl: value to write + * + * Writes ATA taskfile device control register. + * + * Note: may NOT be used as the sff_set_devctl() entry in + * ata_port_operations. + * + * LOCKING: + * Inherited from caller. + */ +static void ata_sff_set_devctl(struct ata_port *ap, u8 ctl) +{ + if (ap->ops->sff_set_devctl) + ap->ops->sff_set_devctl(ap, ctl); + else + iowrite8(ctl, ap->ioaddr.ctl_addr); +} + /** * ata_sff_dev_select - Select device 0/1 on ATA bus * @ap: ATA channel to manipulate @@ -1895,13 +1916,11 @@ EXPORT_SYMBOL_GPL(ata_sff_lost_interrupt); */ void ata_sff_freeze(struct ata_port *ap) { - struct ata_ioports *ioaddr = &ap->ioaddr; - ap->ctl |= ATA_NIEN; ap->last_ctl = ap->ctl; - if (ioaddr->ctl_addr) - iowrite8(ap->ctl, ioaddr->ctl_addr); + if (ap->ops->sff_set_devctl || ap->ioaddr.ctl_addr) + ata_sff_set_devctl(ap, ap->ctl); /* Under certain circumstances, some controllers raise IRQ on * ATA_NIEN manipulation. Also, many controllers fail to mask @@ -2301,8 +2320,8 @@ void ata_sff_postreset(struct ata_link *link, unsigned int *classes) } /* set up device control */ - if (ap->ioaddr.ctl_addr) { - iowrite8(ap->ctl, ap->ioaddr.ctl_addr); + if (ap->ops->sff_set_devctl || ap->ioaddr.ctl_addr) { + ata_sff_set_devctl(ap, ap->ctl); ap->last_ctl = ap->ctl; } } diff --git a/drivers/ata/pata_bf54x.c b/drivers/ata/pata_bf54x.c index 02c81f12c70..198307534d9 100644 --- a/drivers/ata/pata_bf54x.c +++ b/drivers/ata/pata_bf54x.c @@ -820,6 +820,18 @@ static void bfin_dev_select(struct ata_port *ap, unsigned int device) ata_sff_pause(ap); } +/** + * bfin_set_devctl - Write device control reg + * @ap: port where the device is + * @ctl: value to write + */ + +static u8 bfin_set_devctl(struct ata_port *ap, u8 ctl) +{ + void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr; + write_atapi_register(base, ATA_REG_CTRL, ctl); +} + /** * bfin_bmdma_setup - Set up IDE DMA transaction * @qc: Info associated with this ATA transaction. @@ -1239,32 +1251,6 @@ static unsigned char bfin_irq_on(struct ata_port *ap) return tmp; } -/** - * bfin_freeze - Freeze DMA controller port - * @ap: port to freeze - * - * Note: Original code is ata_sff_freeze(). - */ - -static void bfin_freeze(struct ata_port *ap) -{ - void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr; - - dev_dbg(ap->dev, "in atapi dma freeze\n"); - ap->ctl |= ATA_NIEN; - ap->last_ctl = ap->ctl; - - write_atapi_register(base, ATA_REG_CTRL, ap->ctl); - - /* Under certain circumstances, some controllers raise IRQ on - * ATA_NIEN manipulation. Also, many controllers fail to mask - * previously pending IRQ on ATA_NIEN assertion. Clear it. - */ - ap->ops->sff_check_status(ap); - - bfin_irq_clear(ap); -} - /** * bfin_thaw - Thaw DMA controller port * @ap: port to thaw @@ -1476,6 +1462,7 @@ static struct ata_port_operations bfin_pata_ops = { .sff_check_status = bfin_check_status, .sff_check_altstatus = bfin_check_altstatus, .sff_dev_select = bfin_dev_select, + .sff_set_devctl = bfin_set_devctl, .bmdma_setup = bfin_bmdma_setup, .bmdma_start = bfin_bmdma_start, @@ -1485,7 +1472,6 @@ static struct ata_port_operations bfin_pata_ops = { .qc_prep = ata_noop_qc_prep, - .freeze = bfin_freeze, .thaw = bfin_thaw, .softreset = bfin_softreset, .postreset = bfin_postreset, diff --git a/drivers/ata/pata_scc.c b/drivers/ata/pata_scc.c index 77ff829af17..86b25fef34a 100644 --- a/drivers/ata/pata_scc.c +++ b/drivers/ata/pata_scc.c @@ -415,6 +415,17 @@ static void scc_dev_select (struct ata_port *ap, unsigned int device) ata_sff_pause(ap); } +/** + * scc_set_devctl - Write device control reg + * @ap: port where the device is + * @ctl: value to write + */ + +static void scc_set_devctl(struct ata_port *ap, u8 ctl) +{ + out_be32(ap->ioaddr.ctl_addr, ctl); +} + /** * scc_bmdma_setup - Set up PCI IDE BMDMA transaction * @qc: Info associated with this ATA transaction. @@ -839,31 +850,6 @@ static u8 scc_irq_on (struct ata_port *ap) return tmp; } -/** - * scc_freeze - Freeze BMDMA controller port - * @ap: port to freeze - * - * Note: Original code is ata_sff_freeze(). - */ - -static void scc_freeze (struct ata_port *ap) -{ - struct ata_ioports *ioaddr = &ap->ioaddr; - - ap->ctl |= ATA_NIEN; - ap->last_ctl = ap->ctl; - - out_be32(ioaddr->ctl_addr, ap->ctl); - - /* Under certain circumstances, some controllers raise IRQ on - * ATA_NIEN manipulation. Also, many controllers fail to mask - * previously pending IRQ on ATA_NIEN assertion. Clear it. - */ - ap->ops->sff_check_status(ap); - - ap->ops->sff_irq_clear(ap); -} - /** * scc_pata_prereset - prepare for reset * @ap: ATA port to be reset @@ -977,6 +963,7 @@ static struct ata_port_operations scc_pata_ops = { .sff_check_status = scc_check_status, .sff_check_altstatus = scc_check_altstatus, .sff_dev_select = scc_dev_select, + .sff_set_devctl = scc_set_devctl, .bmdma_setup = scc_bmdma_setup, .bmdma_start = scc_bmdma_start, @@ -984,7 +971,6 @@ static struct ata_port_operations scc_pata_ops = { .bmdma_status = scc_bmdma_status, .sff_data_xfer = scc_data_xfer, - .freeze = scc_freeze, .prereset = scc_pata_prereset, .softreset = scc_softreset, .postreset = scc_postreset, diff --git a/include/linux/libata.h b/include/linux/libata.h index 242eb264610..6207ec60072 100644 --- a/include/linux/libata.h +++ b/include/linux/libata.h @@ -850,6 +850,7 @@ struct ata_port_operations { * SFF / taskfile oriented ops */ void (*sff_dev_select)(struct ata_port *ap, unsigned int device); + void (*sff_set_devctl)(struct ata_port *ap, u8 ctl); u8 (*sff_check_status)(struct ata_port *ap); u8 (*sff_check_altstatus)(struct ata_port *ap); void (*sff_tf_load)(struct ata_port *ap, const struct ata_taskfile *tf); -- cgit v1.2.3-70-g09d2 From e3826f1e946e7d2354943232f1457be1455a29e2 Mon Sep 17 00:00:00 2001 From: Amerigo Wang Date: Wed, 5 May 2010 00:27:06 +0000 Subject: net: reserve ports for applications using fixed port numbers (Dropped the infiniband part, because Tetsuo modified the related code, I will send a separate patch for it once this is accepted.) This patch introduces /proc/sys/net/ipv4/ip_local_reserved_ports which allows users to reserve ports for third-party applications. The reserved ports will not be used by automatic port assignments (e.g. when calling connect() or bind() with port number 0). Explicit port allocation behavior is unchanged. Signed-off-by: Octavian Purdila Signed-off-by: WANG Cong Cc: Neil Horman Cc: Eric Dumazet Cc: Eric W. Biederman Signed-off-by: David S. Miller --- Documentation/networking/ip-sysctl.txt | 31 +++++++++++++++++++++++++++++++ include/net/ip.h | 6 ++++++ net/ipv4/af_inet.c | 8 +++++++- net/ipv4/inet_connection_sock.c | 6 ++++++ net/ipv4/inet_hashtables.c | 2 ++ net/ipv4/sysctl_net_ipv4.c | 17 +++++++++++++++++ net/ipv4/udp.c | 3 ++- net/sctp/socket.c | 2 ++ 8 files changed, 73 insertions(+), 2 deletions(-) (limited to 'Documentation') diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index 8b72c88ba21..d0536b5a4e0 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -588,6 +588,37 @@ ip_local_port_range - 2 INTEGERS (i.e. by default) range 1024-4999 is enough to issue up to 2000 connections per second to systems supporting timestamps. +ip_local_reserved_ports - list of comma separated ranges + Specify the ports which are reserved for known third-party + applications. These ports will not be used by automatic port + assignments (e.g. when calling connect() or bind() with port + number 0). Explicit port allocation behavior is unchanged. + + The format used for both input and output is a comma separated + list of ranges (e.g. "1,2-4,10-10" for ports 1, 2, 3, 4 and + 10). Writing to the file will clear all previously reserved + ports and update the current list with the one given in the + input. + + Note that ip_local_port_range and ip_local_reserved_ports + settings are independent and both are considered by the kernel + when determining which ports are available for automatic port + assignments. + + You can reserve ports which are not in the current + ip_local_port_range, e.g.: + + $ cat /proc/sys/net/ipv4/ip_local_port_range + 32000 61000 + $ cat /proc/sys/net/ipv4/ip_local_reserved_ports + 8080,9148 + + although this is redundant. However such a setting is useful + if later the port range is changed to a value that will + include the reserved ports. + + Default: Empty + ip_nonlocal_bind - BOOLEAN If set, allows processes to bind() to non-local IP addresses, which can be quite useful - but may break some applications. diff --git a/include/net/ip.h b/include/net/ip.h index 8149b77cea9..63548f0a44b 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -184,6 +184,12 @@ extern struct local_ports { } sysctl_local_ports; extern void inet_get_local_port_range(int *low, int *high); +extern unsigned long *sysctl_local_reserved_ports; +static inline int inet_is_reserved_local_port(int port) +{ + return test_bit(port, sysctl_local_reserved_ports); +} + extern int sysctl_ip_default_ttl; extern int sysctl_ip_nonlocal_bind; diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index c6c43bcd1c6..551ce564b03 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -1573,9 +1573,13 @@ static int __init inet_init(void) BUILD_BUG_ON(sizeof(struct inet_skb_parm) > sizeof(dummy_skb->cb)); + sysctl_local_reserved_ports = kzalloc(65536 / 8, GFP_KERNEL); + if (!sysctl_local_reserved_ports) + goto out; + rc = proto_register(&tcp_prot, 1); if (rc) - goto out; + goto out_free_reserved_ports; rc = proto_register(&udp_prot, 1); if (rc) @@ -1674,6 +1678,8 @@ out_unregister_udp_proto: proto_unregister(&udp_prot); out_unregister_tcp_proto: proto_unregister(&tcp_prot); +out_free_reserved_ports: + kfree(sysctl_local_reserved_ports); goto out; } diff --git a/net/ipv4/inet_connection_sock.c b/net/ipv4/inet_connection_sock.c index e0a3e3537b1..70eb3507c40 100644 --- a/net/ipv4/inet_connection_sock.c +++ b/net/ipv4/inet_connection_sock.c @@ -37,6 +37,9 @@ struct local_ports sysctl_local_ports __read_mostly = { .range = { 32768, 61000 }, }; +unsigned long *sysctl_local_reserved_ports; +EXPORT_SYMBOL(sysctl_local_reserved_ports); + void inet_get_local_port_range(int *low, int *high) { unsigned seq; @@ -108,6 +111,8 @@ again: smallest_size = -1; do { + if (inet_is_reserved_local_port(rover)) + goto next_nolock; head = &hashinfo->bhash[inet_bhashfn(net, rover, hashinfo->bhash_size)]; spin_lock(&head->lock); @@ -130,6 +135,7 @@ again: break; next: spin_unlock(&head->lock); + next_nolock: if (++rover > high) rover = low; } while (--remaining > 0); diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c index 2b79377b468..d3e160a8821 100644 --- a/net/ipv4/inet_hashtables.c +++ b/net/ipv4/inet_hashtables.c @@ -456,6 +456,8 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row, local_bh_disable(); for (i = 1; i <= remaining; i++) { port = low + (i + offset) % remaining; + if (inet_is_reserved_local_port(port)) + continue; head = &hinfo->bhash[inet_bhashfn(net, port, hinfo->bhash_size)]; spin_lock(&head->lock); diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index 1cd5c15174b..d96c1da4b17 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -299,6 +299,13 @@ static struct ctl_table ipv4_table[] = { .mode = 0644, .proc_handler = ipv4_local_port_range, }, + { + .procname = "ip_local_reserved_ports", + .data = NULL, /* initialized in sysctl_ipv4_init */ + .maxlen = 65536, + .mode = 0644, + .proc_handler = proc_do_large_bitmap, + }, #ifdef CONFIG_IP_MULTICAST { .procname = "igmp_max_memberships", @@ -736,6 +743,16 @@ static __net_initdata struct pernet_operations ipv4_sysctl_ops = { static __init int sysctl_ipv4_init(void) { struct ctl_table_header *hdr; + struct ctl_table *i; + + for (i = ipv4_table; i->procname; i++) { + if (strcmp(i->procname, "ip_local_reserved_ports") == 0) { + i->data = sysctl_local_reserved_ports; + break; + } + } + if (!i->procname) + return -EINVAL; hdr = register_sysctl_paths(net_ipv4_ctl_path, ipv4_table); if (hdr == NULL) diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index f3e00c5cd1e..9de6a698f91 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -233,7 +233,8 @@ int udp_lib_get_port(struct sock *sk, unsigned short snum, */ do { if (low <= snum && snum <= high && - !test_bit(snum >> udptable->log, bitmap)) + !test_bit(snum >> udptable->log, bitmap) && + !inet_is_reserved_local_port(snum)) goto found; snum += rand; } while (snum != first); diff --git a/net/sctp/socket.c b/net/sctp/socket.c index ba1add0b13c..ca44917872d 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -5433,6 +5433,8 @@ static long sctp_get_port_local(struct sock *sk, union sctp_addr *addr) rover++; if ((rover < low) || (rover > high)) rover = low; + if (inet_is_reserved_local_port(rover)) + continue; index = sctp_phashfn(rover); head = &sctp_port_hashtable[index]; sctp_spin_lock(&head->lock); -- cgit v1.2.3-70-g09d2 From 3b098e2d7c693796cc4dffb07caa249fc0f70771 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sat, 15 May 2010 23:57:10 -0700 Subject: net: Consistent skb timestamping With RPS inclusion, skb timestamping is not consistent in RX path. If netif_receive_skb() is used, its deferred after RPS dispatch. If netif_rx() is used, its done before RPS dispatch. This can give strange tcpdump timestamps results. I think timestamping should be done as soon as possible in the receive path, to get meaningful values (ie timestamps taken at the time packet was delivered by NIC driver to our stack), even if NAPI already can defer timestamping a bit (RPS can help to reduce the gap) Tom Herbert prefer to sample timestamps after RPS dispatch. In case sampling is expensive (HPET/acpi_pm on x86), this makes sense. Let admins switch from one mode to another, using a new sysctl, /proc/sys/net/core/netdev_tstamp_prequeue Its default value (1), means timestamps are taken as soon as possible, before backlog queueing, giving accurate timestamps. Setting a 0 value permits to sample timestamps when processing backlog, after RPS dispatch, to lower the load of the pre-RPS cpu. Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- Documentation/sysctl/net.txt | 10 +++++++++ include/linux/netdevice.h | 1 + net/core/dev.c | 50 +++++++++++++++++++++++++++----------------- net/core/sysctl_net_core.c | 7 +++++++ 4 files changed, 49 insertions(+), 19 deletions(-) (limited to 'Documentation') diff --git a/Documentation/sysctl/net.txt b/Documentation/sysctl/net.txt index df38ef046f8..cbd05ffc606 100644 --- a/Documentation/sysctl/net.txt +++ b/Documentation/sysctl/net.txt @@ -84,6 +84,16 @@ netdev_max_backlog Maximum number of packets, queued on the INPUT side, when the interface receives packets faster than kernel can process them. +netdev_tstamp_prequeue +---------------------- + +If set to 0, RX packet timestamps can be sampled after RPS processing, when +the target CPU processes packets. It might give some delay on timestamps, but +permit to distribute the load on several cpus. + +If set to 1 (default), timestamps are sampled as soon as possible, before +queueing. + optmem_max ---------- diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index 69022d47d6f..c1b2341897c 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -2100,6 +2100,7 @@ extern const struct net_device_stats *dev_get_stats(struct net_device *dev); extern void dev_txq_stats_fold(const struct net_device *dev, struct net_device_stats *stats); extern int netdev_max_backlog; +extern int netdev_tstamp_prequeue; extern int weight_p; extern int netdev_set_master(struct net_device *dev, struct net_device *master); extern int skb_checksum_help(struct sk_buff *skb); diff --git a/net/core/dev.c b/net/core/dev.c index 5cbba0927a8..988e42912e7 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1454,7 +1454,7 @@ void net_disable_timestamp(void) } EXPORT_SYMBOL(net_disable_timestamp); -static inline void net_timestamp(struct sk_buff *skb) +static inline void net_timestamp_set(struct sk_buff *skb) { if (atomic_read(&netstamp_needed)) __net_timestamp(skb); @@ -1462,6 +1462,12 @@ static inline void net_timestamp(struct sk_buff *skb) skb->tstamp.tv64 = 0; } +static inline void net_timestamp_check(struct sk_buff *skb) +{ + if (!skb->tstamp.tv64 && atomic_read(&netstamp_needed)) + __net_timestamp(skb); +} + /** * dev_forward_skb - loopback an skb to another netif * @@ -1508,9 +1514,9 @@ static void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev) #ifdef CONFIG_NET_CLS_ACT if (!(skb->tstamp.tv64 && (G_TC_FROM(skb->tc_verd) & AT_INGRESS))) - net_timestamp(skb); + net_timestamp_set(skb); #else - net_timestamp(skb); + net_timestamp_set(skb); #endif rcu_read_lock(); @@ -2201,6 +2207,7 @@ EXPORT_SYMBOL(dev_queue_xmit); =======================================================================*/ int netdev_max_backlog __read_mostly = 1000; +int netdev_tstamp_prequeue __read_mostly = 1; int netdev_budget __read_mostly = 300; int weight_p __read_mostly = 64; /* old backlog weight */ @@ -2465,8 +2472,8 @@ int netif_rx(struct sk_buff *skb) if (netpoll_rx(skb)) return NET_RX_DROP; - if (!skb->tstamp.tv64) - net_timestamp(skb); + if (netdev_tstamp_prequeue) + net_timestamp_check(skb); #ifdef CONFIG_RPS { @@ -2791,8 +2798,8 @@ static int __netif_receive_skb(struct sk_buff *skb) int ret = NET_RX_DROP; __be16 type; - if (!skb->tstamp.tv64) - net_timestamp(skb); + if (!netdev_tstamp_prequeue) + net_timestamp_check(skb); if (vlan_tx_tag_present(skb) && vlan_hwaccel_do_receive(skb)) return NET_RX_SUCCESS; @@ -2910,23 +2917,28 @@ out: */ int netif_receive_skb(struct sk_buff *skb) { + if (netdev_tstamp_prequeue) + net_timestamp_check(skb); + #ifdef CONFIG_RPS - struct rps_dev_flow voidflow, *rflow = &voidflow; - int cpu, ret; + { + struct rps_dev_flow voidflow, *rflow = &voidflow; + int cpu, ret; - rcu_read_lock(); + rcu_read_lock(); + + cpu = get_rps_cpu(skb->dev, skb, &rflow); - cpu = get_rps_cpu(skb->dev, skb, &rflow); + if (cpu >= 0) { + ret = enqueue_to_backlog(skb, cpu, &rflow->last_qtail); + rcu_read_unlock(); + } else { + rcu_read_unlock(); + ret = __netif_receive_skb(skb); + } - if (cpu >= 0) { - ret = enqueue_to_backlog(skb, cpu, &rflow->last_qtail); - rcu_read_unlock(); - } else { - rcu_read_unlock(); - ret = __netif_receive_skb(skb); + return ret; } - - return ret; #else return __netif_receive_skb(skb); #endif diff --git a/net/core/sysctl_net_core.c b/net/core/sysctl_net_core.c index dcc7d25996a..01eee5d984b 100644 --- a/net/core/sysctl_net_core.c +++ b/net/core/sysctl_net_core.c @@ -121,6 +121,13 @@ static struct ctl_table net_core_table[] = { .mode = 0644, .proc_handler = proc_dointvec }, + { + .procname = "netdev_tstamp_prequeue", + .data = &netdev_tstamp_prequeue, + .maxlen = sizeof(int), + .mode = 0644, + .proc_handler = proc_dointvec + }, { .procname = "message_cost", .data = &net_ratelimit_state.interval, -- cgit v1.2.3-70-g09d2 From 345e5c8a1cc30ebd527bcc122d9540538942f1ba Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Thu, 7 Jan 2010 17:57:46 +0100 Subject: powerpc: Add interrupt support to mpc8xxx_gpio Signed-off-by: Peter Korsgaard Acked-by: Anton Vorontsov Signed-off-by: Kumar Gala --- .../powerpc/dts-bindings/fsl/8xxx_gpio.txt | 22 ++- arch/powerpc/sysdev/mpc8xxx_gpio.c | 147 +++++++++++++++++++++ 2 files changed, 168 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/powerpc/dts-bindings/fsl/8xxx_gpio.txt b/Documentation/powerpc/dts-bindings/fsl/8xxx_gpio.txt index d015dcec401..b0019eb5330 100644 --- a/Documentation/powerpc/dts-bindings/fsl/8xxx_gpio.txt +++ b/Documentation/powerpc/dts-bindings/fsl/8xxx_gpio.txt @@ -11,7 +11,7 @@ Required properties: 83xx, "fsl,mpc8572-gpio" for 85xx and "fsl,mpc8610-gpio" for 86xx. - #gpio-cells : Should be two. The first cell is the pin number and the second cell is used to specify optional parameters (currently unused). - - interrupts : Interrupt mapping for GPIO IRQ (currently unused). + - interrupts : Interrupt mapping for GPIO IRQ. - interrupt-parent : Phandle for the interrupt controller that services interrupts for this device. - gpio-controller : Marks the port as GPIO controller. @@ -38,3 +38,23 @@ Example of gpio-controller nodes for a MPC8347 SoC: See booting-without-of.txt for details of how to specify GPIO information for devices. + +To use GPIO pins as interrupt sources for peripherals, specify the +GPIO controller as the interrupt parent and define GPIO number + +trigger mode using the interrupts property, which is defined like +this: + +interrupts = , where: + - number: GPIO pin (0..31) + - trigger: trigger mode: + 2 = trigger on falling edge + 3 = trigger on both edges + +Example of device using this is: + + funkyfpga@0 { + compatible = "funky-fpga"; + ... + interrupts = <4 3>; + interrupt-parent = <&gpio1>; + }; diff --git a/arch/powerpc/sysdev/mpc8xxx_gpio.c b/arch/powerpc/sysdev/mpc8xxx_gpio.c index 6478eb10691..83f519655fa 100644 --- a/arch/powerpc/sysdev/mpc8xxx_gpio.c +++ b/arch/powerpc/sysdev/mpc8xxx_gpio.c @@ -16,6 +16,7 @@ #include #include #include +#include #define MPC8XXX_GPIO_PINS 32 @@ -35,6 +36,7 @@ struct mpc8xxx_gpio_chip { * open drain mode safely */ u32 data; + struct irq_host *irq; }; static inline u32 mpc8xxx_gpio2mask(unsigned int gpio) @@ -128,12 +130,136 @@ static int mpc8xxx_gpio_dir_out(struct gpio_chip *gc, unsigned int gpio, int val return 0; } +static int mpc8xxx_gpio_to_irq(struct gpio_chip *gc, unsigned offset) +{ + struct of_mm_gpio_chip *mm = to_of_mm_gpio_chip(gc); + struct mpc8xxx_gpio_chip *mpc8xxx_gc = to_mpc8xxx_gpio_chip(mm); + + if (mpc8xxx_gc->irq && offset < MPC8XXX_GPIO_PINS) + return irq_create_mapping(mpc8xxx_gc->irq, offset); + else + return -ENXIO; +} + +static void mpc8xxx_gpio_irq_cascade(unsigned int irq, struct irq_desc *desc) +{ + struct mpc8xxx_gpio_chip *mpc8xxx_gc = get_irq_desc_data(desc); + struct of_mm_gpio_chip *mm = &mpc8xxx_gc->mm_gc; + unsigned int mask; + + mask = in_be32(mm->regs + GPIO_IER) & in_be32(mm->regs + GPIO_IMR); + if (mask) + generic_handle_irq(irq_linear_revmap(mpc8xxx_gc->irq, + 32 - ffs(mask))); +} + +static void mpc8xxx_irq_unmask(unsigned int virq) +{ + struct mpc8xxx_gpio_chip *mpc8xxx_gc = get_irq_chip_data(virq); + struct of_mm_gpio_chip *mm = &mpc8xxx_gc->mm_gc; + unsigned long flags; + + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + + setbits32(mm->regs + GPIO_IMR, mpc8xxx_gpio2mask(virq_to_hw(virq))); + + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); +} + +static void mpc8xxx_irq_mask(unsigned int virq) +{ + struct mpc8xxx_gpio_chip *mpc8xxx_gc = get_irq_chip_data(virq); + struct of_mm_gpio_chip *mm = &mpc8xxx_gc->mm_gc; + unsigned long flags; + + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + + clrbits32(mm->regs + GPIO_IMR, mpc8xxx_gpio2mask(virq_to_hw(virq))); + + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); +} + +static void mpc8xxx_irq_ack(unsigned int virq) +{ + struct mpc8xxx_gpio_chip *mpc8xxx_gc = get_irq_chip_data(virq); + struct of_mm_gpio_chip *mm = &mpc8xxx_gc->mm_gc; + + out_be32(mm->regs + GPIO_IER, mpc8xxx_gpio2mask(virq_to_hw(virq))); +} + +static int mpc8xxx_irq_set_type(unsigned int virq, unsigned int flow_type) +{ + struct mpc8xxx_gpio_chip *mpc8xxx_gc = get_irq_chip_data(virq); + struct of_mm_gpio_chip *mm = &mpc8xxx_gc->mm_gc; + unsigned long flags; + + switch (flow_type) { + case IRQ_TYPE_EDGE_FALLING: + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + setbits32(mm->regs + GPIO_ICR, + mpc8xxx_gpio2mask(virq_to_hw(virq))); + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); + break; + + case IRQ_TYPE_EDGE_BOTH: + spin_lock_irqsave(&mpc8xxx_gc->lock, flags); + clrbits32(mm->regs + GPIO_ICR, + mpc8xxx_gpio2mask(virq_to_hw(virq))); + spin_unlock_irqrestore(&mpc8xxx_gc->lock, flags); + break; + + default: + return -EINVAL; + } + + return 0; +} + +static struct irq_chip mpc8xxx_irq_chip = { + .name = "mpc8xxx-gpio", + .unmask = mpc8xxx_irq_unmask, + .mask = mpc8xxx_irq_mask, + .ack = mpc8xxx_irq_ack, + .set_type = mpc8xxx_irq_set_type, +}; + +static int mpc8xxx_gpio_irq_map(struct irq_host *h, unsigned int virq, + irq_hw_number_t hw) +{ + set_irq_chip_data(virq, h->host_data); + set_irq_chip_and_handler(virq, &mpc8xxx_irq_chip, handle_level_irq); + set_irq_type(virq, IRQ_TYPE_NONE); + + return 0; +} + +static int mpc8xxx_gpio_irq_xlate(struct irq_host *h, struct device_node *ct, + const u32 *intspec, unsigned int intsize, + irq_hw_number_t *out_hwirq, + unsigned int *out_flags) + +{ + /* interrupt sense values coming from the device tree equal either + * EDGE_FALLING or EDGE_BOTH + */ + *out_hwirq = intspec[0]; + *out_flags = intspec[1]; + + return 0; +} + +static struct irq_host_ops mpc8xxx_gpio_irq_ops = { + .map = mpc8xxx_gpio_irq_map, + .xlate = mpc8xxx_gpio_irq_xlate, +}; + static void __init mpc8xxx_add_controller(struct device_node *np) { struct mpc8xxx_gpio_chip *mpc8xxx_gc; struct of_mm_gpio_chip *mm_gc; struct of_gpio_chip *of_gc; struct gpio_chip *gc; + unsigned hwirq; int ret; mpc8xxx_gc = kzalloc(sizeof(*mpc8xxx_gc), GFP_KERNEL); @@ -158,11 +284,32 @@ static void __init mpc8xxx_add_controller(struct device_node *np) else gc->get = mpc8xxx_gpio_get; gc->set = mpc8xxx_gpio_set; + gc->to_irq = mpc8xxx_gpio_to_irq; ret = of_mm_gpiochip_add(np, mm_gc); if (ret) goto err; + hwirq = irq_of_parse_and_map(np, 0); + if (hwirq == NO_IRQ) + goto skip_irq; + + mpc8xxx_gc->irq = + irq_alloc_host(np, IRQ_HOST_MAP_LINEAR, MPC8XXX_GPIO_PINS, + &mpc8xxx_gpio_irq_ops, MPC8XXX_GPIO_PINS); + if (!mpc8xxx_gc->irq) + goto skip_irq; + + mpc8xxx_gc->irq->host_data = mpc8xxx_gc; + + /* ack and mask all irqs */ + out_be32(mm_gc->regs + GPIO_IER, 0xffffffff); + out_be32(mm_gc->regs + GPIO_IMR, 0); + + set_irq_data(hwirq, mpc8xxx_gc); + set_irq_chained_handler(hwirq, mpc8xxx_gpio_irq_cascade); + +skip_irq: return; err: -- cgit v1.2.3-70-g09d2 From 8f27fd9605a28225bb71f2b3ade5d248231cd824 Mon Sep 17 00:00:00 2001 From: Vladimir Ermakov Date: Wed, 10 Mar 2010 12:44:57 -0300 Subject: V4L/DVB: saa7134: add capture boards Hawell HW-404M7 and HW-808M7 Adds new capture boards Hawell HW-404M7 and HW-808M7. Those cards have 4 or 8 SAA7130 chips and for the work it only needs initialize registers. The value of those registers were dumped under Windows using flytest. But board haven't EEPROM. For the first chip: SAA7130 (0x7130, SubVenID:1131, SubDevID:0000, Rev: 01) I2C slave devices found: No devices GPIO pins: Mode : 0x00389C00 Value: 0x00016C00 Video input: 3 Audio input: Analog Line1 For other chips: SAA7130 (0x7130, SubVenID:1131, SubDevID:0000, Rev: 01) I2C slave devices found: No devices GPIO pins: Mode : 0x00389200 Value: 0x00010000 Video input: 3 Audio input: Analog Line1 Signed-off-by: Vladimir Ermakov Signed-off-by: Mauro Carvalho Chehab --- Documentation/video4linux/CARDLIST.saa7134 | 1 + drivers/media/video/saa7134/saa7134-cards.c | 17 +++++++++++++++++ drivers/media/video/saa7134/saa7134-input.c | 1 + drivers/media/video/saa7134/saa7134.h | 1 + 4 files changed, 20 insertions(+) (limited to 'Documentation') diff --git a/Documentation/video4linux/CARDLIST.saa7134 b/Documentation/video4linux/CARDLIST.saa7134 index b4a767060ed..3de042a9c4f 100644 --- a/Documentation/video4linux/CARDLIST.saa7134 +++ b/Documentation/video4linux/CARDLIST.saa7134 @@ -175,3 +175,4 @@ 174 -> Asus Europa Hybrid OEM [1043:4847] 175 -> Leadtek Winfast DTV1000S [107d:6655] 176 -> Beholder BeholdTV 505 RDS [0000:5051] +177 -> Hawell HW-404M7 / HW-808M7 diff --git a/drivers/media/video/saa7134/saa7134-cards.c b/drivers/media/video/saa7134/saa7134-cards.c index aa07cb11e10..655068f6c49 100644 --- a/drivers/media/video/saa7134/saa7134-cards.c +++ b/drivers/media/video/saa7134/saa7134-cards.c @@ -5355,6 +5355,23 @@ struct saa7134_board saa7134_boards[] = { .amux = LINE2, }, }, + [SAA7134_BOARD_HAWELL_HW_404M7] = { + /* Hawell HW-404M7 & Hawell HW-808M7 */ + /* Bogoslovskiy Viktor */ + .name = "Hawell HW-404M7", + .audio_clock = 0x00200000, + .tuner_type = UNSET, + .radio_type = UNSET, + .tuner_addr = ADDR_UNSET, + .radio_addr = ADDR_UNSET, + .gpiomask = 0x01fc00, + .inputs = {{ + .name = name_comp1, + .vmux = 3, + .amux = LINE1, + .gpio = 0x389c00, + } }, + }, }; diff --git a/drivers/media/video/saa7134/saa7134-input.c b/drivers/media/video/saa7134/saa7134-input.c index c1fe7c9369b..ac62b77e5ed 100644 --- a/drivers/media/video/saa7134/saa7134-input.c +++ b/drivers/media/video/saa7134/saa7134-input.c @@ -475,6 +475,7 @@ int saa7134_input_init1(struct saa7134_dev *dev) switch (dev->board) { case SAA7134_BOARD_FLYVIDEO2000: case SAA7134_BOARD_FLYVIDEO3000: + case SAA7134_BOARD_HAWELL_HW_404M7: case SAA7134_BOARD_FLYTVPLATINUM_FM: case SAA7134_BOARD_FLYTVPLATINUM_MINI2: case SAA7134_BOARD_ROVERMEDIA_LINK_PRO_FM: diff --git a/drivers/media/video/saa7134/saa7134.h b/drivers/media/video/saa7134/saa7134.h index bf130967ed1..c3a1ae0adca 100644 --- a/drivers/media/video/saa7134/saa7134.h +++ b/drivers/media/video/saa7134/saa7134.h @@ -300,6 +300,7 @@ struct saa7134_format { #define SAA7134_BOARD_ASUS_EUROPA_HYBRID 174 #define SAA7134_BOARD_LEADTEK_WINFAST_DTV1000S 175 #define SAA7134_BOARD_BEHOLD_505RDS_MK3 176 +#define SAA7134_BOARD_HAWELL_HW_404M7 177 #define SAA7134_MAXBOARDS 32 #define SAA7134_INPUT_MAX 8 -- cgit v1.2.3-70-g09d2 From 9583183acbd40fc6e972ac39ae0a2173976f288e Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 13 Mar 2010 19:03:21 -0300 Subject: V4L/DVB: v4l doc: fix font of field name The field 'reserved' was not tagged as a 'structfield' as it should. This made the text a bit confusing. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/v4l/vidioc-reqbufs.xml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/DocBook/v4l/vidioc-reqbufs.xml b/Documentation/DocBook/v4l/vidioc-reqbufs.xml index 1c081637207..69800ae2334 100644 --- a/Documentation/DocBook/v4l/vidioc-reqbufs.xml +++ b/Documentation/DocBook/v4l/vidioc-reqbufs.xml @@ -61,7 +61,7 @@ fields of the v4l2_requestbuffers structure. They set the type field to the respective stream or buffer type, the count field to the desired number of buffers, memory -must be set to the requested I/O method and the reserved array +must be set to the requested I/O method and the reserved array must be zeroed. When the ioctl is called with a pointer to this structure the driver will attempt to allocate the requested number of buffers and it stores the actual number -- cgit v1.2.3-70-g09d2 From ad98c0f674796848c6fd8fe614ef83ef971ebfcf Mon Sep 17 00:00:00 2001 From: Jean-François Moine Date: Thu, 18 Mar 2010 05:15:30 -0300 Subject: V4L/DVB: gspca - sonixj: Add webcam 0c45:6142 with sensors gc0307 and po2030n MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Jean-François Moine Signed-off-by: Mauro Carvalho Chehab --- Documentation/video4linux/gspca.txt | 1 + drivers/media/video/gspca/sonixj.c | 297 +++++++++++++++++++++++++++++++++++- 2 files changed, 290 insertions(+), 8 deletions(-) (limited to 'Documentation') diff --git a/Documentation/video4linux/gspca.txt b/Documentation/video4linux/gspca.txt index 181b9e6fd98..9475e1e1441 100644 --- a/Documentation/video4linux/gspca.txt +++ b/Documentation/video4linux/gspca.txt @@ -305,6 +305,7 @@ sonixj 0c45:6138 Sn9c120 Mo4000 sonixj 0c45:613a Microdia Sonix PC Camera sonixj 0c45:613b Surfer SN-206 sonixj 0c45:613c Sonix Pccam168 +sonixj 0c45:6142 Hama PC-Webcam AC-150 sonixj 0c45:6143 Sonix Pccam168 sonixj 0c45:6148 Digitus DA-70811/ZSMC USB PC Camera ZS211/Microdia sonixj 0c45:614a Frontech E-Ccam (JIL-2225) diff --git a/drivers/media/video/gspca/sonixj.c b/drivers/media/video/gspca/sonixj.c index 20ca161bc3d..aaa68ddb1fb 100644 --- a/drivers/media/video/gspca/sonixj.c +++ b/drivers/media/video/gspca/sonixj.c @@ -69,6 +69,7 @@ struct sd { u8 sensor; /* Type of image sensor chip */ enum { SENSOR_ADCM1700, + SENSOR_GC0307, SENSOR_HV7131R, SENSOR_MI0360, SENSOR_MO4000, @@ -78,6 +79,7 @@ enum { SENSOR_OV7648, SENSOR_OV7660, SENSOR_PO1030, + SENSOR_PO2030N, SENSOR_SP80708, } sensors; u8 i2c_addr; @@ -289,6 +291,11 @@ static const __u32 ctrl_dis[] = { (1 << VFLIP_IDX) | (1 << FREQ_IDX), +[SENSOR_GC0307] = (1 << AUTOGAIN_IDX) | + (1 << INFRARED_IDX) | + (1 << VFLIP_IDX) | + (1 << FREQ_IDX), + [SENSOR_HV7131R] = (1 << INFRARED_IDX) | (1 << FREQ_IDX), @@ -320,6 +327,11 @@ static const __u32 ctrl_dis[] = { (1 << VFLIP_IDX) | (1 << FREQ_IDX), +[SENSOR_PO2030N] = (1 << AUTOGAIN_IDX) | + (1 << INFRARED_IDX) | + (1 << VFLIP_IDX) | + (1 << FREQ_IDX), + [SENSOR_SP80708] = (1 << AUTOGAIN_IDX) | (1 << INFRARED_IDX) | (1 << VFLIP_IDX) | @@ -363,7 +375,17 @@ static const u8 sn_adcm1700[0x1c] = { 0x06, 0x00, 0x00, 0x00 }; -/*Data from sn9c102p+hv7131r */ +static const u8 sn_gc0307[0x1c] = { +/* reg0 reg1 reg2 reg3 reg4 reg5 reg6 reg7 */ + 0x00, 0x61, 0x62, 0x00, 0x1a, 0x00, 0x00, 0x00, +/* reg8 reg9 rega regb regc regd rege regf */ + 0x80, 0x21, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, +/* reg10 reg11 reg12 reg13 reg14 reg15 reg16 reg17 */ + 0x03, 0x00, 0x03, 0x01, 0x08, 0x28, 0x1e, 0x02, +/* reg18 reg19 reg1a reg1b */ + 0x06, 0x00, 0x00, 0x00 +}; + static const u8 sn_hv7131[0x1c] = { /* reg0 reg1 reg2 reg3 reg4 reg5 reg6 reg7 */ 0x00, 0x03, 0x64, 0x00, 0x1a, 0x20, 0x20, 0x20, @@ -463,6 +485,17 @@ static const u8 sn_po1030[0x1c] = { 0x07, 0x00, 0x00, 0x00 }; +static const u8 sn_po2030n[0x1c] = { +/* reg0 reg1 reg2 reg3 reg4 reg5 reg6 reg7 */ + 0x00, 0x63, 0x40, 0x00, 0x1a, 0x00, 0x00, 0x00, +/* reg8 reg9 rega regb regc regd rege regf */ + 0x81, 0x6e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, +/* reg10 reg11 reg12 reg13 reg14 reg15 reg16 reg17 */ + 0x03, 0x00, 0x00, 0x01, 0x14, 0x28, 0x1e, 0x00, +/* reg18 reg19 reg1a reg1b */ + 0x07, 0x00, 0x00, 0x00 +}; + static const u8 sn_sp80708[0x1c] = { /* reg0 reg1 reg2 reg3 reg4 reg5 reg6 reg7 */ 0x00, 0x63, 0x60, 0x00, 0x1a, 0x20, 0x20, 0x20, @@ -477,6 +510,7 @@ static const u8 sn_sp80708[0x1c] = { /* sequence specific to the sensors - !! index = SENSOR_xxx */ static const u8 *sn_tb[] = { [SENSOR_ADCM1700] = sn_adcm1700, +[SENSOR_GC0307] = sn_gc0307, [SENSOR_HV7131R] = sn_hv7131, [SENSOR_MI0360] = sn_mi0360, [SENSOR_MO4000] = sn_mo4000, @@ -486,6 +520,7 @@ static const u8 *sn_tb[] = { [SENSOR_OV7648] = sn_ov7648, [SENSOR_OV7660] = sn_ov7660, [SENSOR_PO1030] = sn_po1030, +[SENSOR_PO2030N] = sn_po2030n, [SENSOR_SP80708] = sn_sp80708 }; @@ -504,8 +539,13 @@ static const u8 gamma_spec_1[17] = { 0x08, 0x3a, 0x52, 0x65, 0x75, 0x83, 0x91, 0x9d, 0xa9, 0xb4, 0xbe, 0xc8, 0xd2, 0xdb, 0xe4, 0xed, 0xf5 }; -/* gamma for sensor SP80708 */ +/* gamma for sensor GC0307 */ static const u8 gamma_spec_2[17] = { + 0x14, 0x37, 0x50, 0x6a, 0x7c, 0x8d, 0x9d, 0xab, + 0xb5, 0xbf, 0xc2, 0xcb, 0xd1, 0xd6, 0xdb, 0xe1, 0xeb +}; +/* gamma for sensor SP80708 */ +static const u8 gamma_spec_3[17] = { 0x0a, 0x2d, 0x4e, 0x68, 0x7d, 0x8f, 0x9f, 0xab, 0xb7, 0xc2, 0xcc, 0xd3, 0xd8, 0xde, 0xe2, 0xe5, 0xe6 }; @@ -553,6 +593,64 @@ static const u8 adcm1700_sensor_param1[][8] = { {0xb0, 0x51, 0x32, 0x00, 0xa2, 0x00, 0x00, 0x10}, {} }; +static const u8 gc0307_sensor_init[][8] = { + {0xa0, 0x21, 0x43, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x44, 0xa2, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x01, 0x6a, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x02, 0x70, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x10, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x1c, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x1d, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x11, 0x05, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x05, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x06, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x07, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x08, 0x02, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x09, 0x01, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x0a, 0xe8, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x0b, 0x02, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x0c, 0x80, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x0d, 0x22, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x0e, 0x02, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x0f, 0xb2, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x12, 0x70, 0x00, 0x00, 0x00, 0x10}, + {0xdd, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /*delay 10ms*/ + {0xa0, 0x21, 0x13, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x15, 0xb8, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x16, 0x13, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x17, 0x52, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x18, 0x50, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x1e, 0x0d, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x1f, 0x32, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x61, 0x90, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x63, 0x70, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x65, 0x98, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x67, 0x90, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x03, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x04, 0x96, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x45, 0x27, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x47, 0x2c, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x43, 0x47, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x44, 0xd8, 0x00, 0x00, 0x00, 0x10}, + {} +}; +static const u8 gc0307_sensor_param1[][8] = { + {0xa0, 0x21, 0x68, 0x13, 0x00, 0x00, 0x00, 0x10}, + {0xd0, 0x21, 0x61, 0x80, 0x00, 0x80, 0x00, 0x10}, + {0xc0, 0x21, 0x65, 0x80, 0x00, 0x80, 0x00, 0x10}, + {0xc0, 0x21, 0x63, 0xa0, 0x00, 0xa6, 0x00, 0x10}, +/*param3*/ + {0xa0, 0x21, 0x01, 0x6e, 0x00, 0x00, 0x00, 0x10}, + {0xa0, 0x21, 0x02, 0x88, 0x00, 0x00, 0x00, 0x10}, + + {0xa0, 0x21, 0x68, 0x22, 0x00, 0x00, 0x00, 0x10}, + {0xdd, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, + {0xa0, 0x21, 0x03, 0x07, 0x00, 0x00, 0x00, 0x10}, + {0xdd, 0x20, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, + {0xa0, 0x21, 0x04, 0x91, 0x00, 0x00, 0x00, 0x10}, + {} +}; + static const u8 hv7131r_sensor_init[][8] = { {0xc1, 0x11, 0x01, 0x08, 0x01, 0x00, 0x00, 0x10}, {0xb1, 0x11, 0x34, 0x17, 0x7f, 0x00, 0x00, 0x10}, @@ -1004,6 +1102,82 @@ static const u8 po1030_sensor_param1[][8] = { {} }; +static const u8 po2030n_sensor_init[][8] = { + {0xa1, 0x6e, 0x1e, 0x1a, 0x00, 0x00, 0x00, 0x10}, + {0xa1, 0x6e, 0x1f, 0x99, 0x00, 0x00, 0x00, 0x10}, + {0xdd, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* delay 10ms */ + {0xa1, 0x6e, 0x1e, 0x0a, 0x00, 0x00, 0x00, 0x10}, + {0xa1, 0x6e, 0x1f, 0x19, 0x00, 0x00, 0x00, 0x10}, + {0xdd, 0x0a, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* delay 10ms */ + {0xa1, 0x6e, 0x20, 0x44, 0x00, 0x00, 0x00, 0x10}, + {0xa1, 0x6e, 0x04, 0x03, 0x00, 0x00, 0x00, 0x10}, + {0xa1, 0x6e, 0x05, 0x70, 0x00, 0x00, 0x00, 0x10}, + {0xa1, 0x6e, 0x06, 0x02, 0x00, 0x00, 0x00, 0x10}, + {0xa1, 0x6e, 0x07, 0x25, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x08, 0x00, 0xd0, 0x00, 0x08, 0x10}, + {0xd1, 0x6e, 0x0c, 0x03, 0x50, 0x01, 0xe8, 0x10}, + {0xd1, 0x6e, 0x1d, 0x20, 0x0a, 0x19, 0x44, 0x10}, + {0xd1, 0x6e, 0x21, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x25, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x29, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x2d, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x31, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x35, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x39, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x3d, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x41, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x45, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x49, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x4d, 0x00, 0x00, 0x00, 0xed, 0x10}, + {0xd1, 0x6e, 0x51, 0x17, 0x4a, 0x2f, 0xc0, 0x10}, + {0xd1, 0x6e, 0x55, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x59, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x5d, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x61, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x65, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x69, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x6d, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x71, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x75, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x79, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x7d, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x81, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x85, 0x00, 0x00, 0x00, 0x08, 0x10}, + {0xd1, 0x6e, 0x89, 0x01, 0xe8, 0x00, 0x01, 0x10}, + {0xa1, 0x6e, 0x8d, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x21, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x25, 0x00, 0x00, 0x00, 0x01, 0x10}, + {0xd1, 0x6e, 0x29, 0xe6, 0x00, 0xbd, 0x03, 0x10}, + {0xd1, 0x6e, 0x2d, 0x41, 0x38, 0x68, 0x40, 0x10}, + {0xd1, 0x6e, 0x31, 0x2b, 0x00, 0x36, 0x00, 0x10}, + {0xd1, 0x6e, 0x35, 0x30, 0x30, 0x08, 0x00, 0x10}, + {0xd1, 0x6e, 0x39, 0x00, 0x00, 0x33, 0x06, 0x10}, + {0xb1, 0x6e, 0x3d, 0x06, 0x02, 0x00, 0x00, 0x10}, + {} +}; +static const u8 po2030n_sensor_param1[][8] = { + {0xa1, 0x6e, 0x1a, 0x01, 0x00, 0x00, 0x00, 0x10}, + {0xdd, 0x08, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* delay 8ms */ + {0xa1, 0x6e, 0x1b, 0xf4, 0x00, 0x00, 0x00, 0x10}, + {0xa1, 0x6e, 0x15, 0x04, 0x00, 0x00, 0x00, 0x10}, + {0xd1, 0x6e, 0x16, 0x50, 0x40, 0x49, 0x40, 0x10}, +/*param2*/ + {0xa1, 0x6e, 0x1d, 0x00, 0x00, 0x00, 0x00, 0x10}, + {0xa1, 0x6e, 0x04, 0x03, 0x00, 0x00, 0x00, 0x10}, + {0xa1, 0x6e, 0x05, 0x6f, 0x00, 0x00, 0x00, 0x10}, + {0xa1, 0x6e, 0x06, 0x02, 0x00, 0x00, 0x00, 0x10}, + {0xa1, 0x6e, 0x07, 0x25, 0x00, 0x00, 0x00, 0x10}, + {0xa1, 0x6e, 0x15, 0x04, 0x00, 0x00, 0x00, 0x10}, + {0xc1, 0x6e, 0x16, 0x52, 0x40, 0x48, 0x00, 0x10}, +/*after start*/ + {0xa1, 0x6e, 0x15, 0x0f, 0x00, 0x00, 0x00, 0x10}, + {0xdd, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* delay 5ms */ + {0xa1, 0x6e, 0x1a, 0x05, 0x00, 0x00, 0x00, 0x10}, + {0xdd, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, /* delay 5ms */ + {0xa1, 0x6e, 0x1b, 0x53, 0x00, 0x00, 0x00, 0x10}, + {} +}; + static const u8 sp80708_sensor_init[][8] = { {0xa1, 0x18, 0x06, 0xf9, 0x00, 0x00, 0x00, 0x10}, {0xa1, 0x18, 0x09, 0x1f, 0x00, 0x00, 0x00, 0x10}, @@ -1091,6 +1265,7 @@ static const u8 sp80708_sensor_param1[][8] = { static const u8 (*sensor_init[])[8] = { [SENSOR_ADCM1700] = adcm1700_sensor_init, +[SENSOR_GC0307] = gc0307_sensor_init, [SENSOR_HV7131R] = hv7131r_sensor_init, [SENSOR_MI0360] = mi0360_sensor_init, [SENSOR_MO4000] = mo4000_sensor_init, @@ -1100,6 +1275,7 @@ static const u8 (*sensor_init[])[8] = { [SENSOR_OV7648] = ov7648_sensor_init, [SENSOR_OV7660] = ov7660_sensor_init, [SENSOR_PO1030] = po1030_sensor_init, +[SENSOR_PO2030N] = po2030n_sensor_init, [SENSOR_SP80708] = sp80708_sensor_init, }; @@ -1169,7 +1345,8 @@ static void i2c_w1(struct gspca_dev *gspca_dev, u8 reg, u8 val) PDEBUG(D_USBO, "i2c_w2 [%02x] = %02x", reg, val); switch (sd->sensor) { case SENSOR_ADCM1700: - case SENSOR_OM6802: /* i2c command = a0 (100 kHz) */ + case SENSOR_OM6802: + case SENSOR_GC0307: /* i2c command = a0 (100 kHz) */ gspca_dev->usb_buf[0] = 0x80 | (2 << 4); break; default: /* i2c command = a1 (400 kHz) */ @@ -1216,7 +1393,8 @@ static void i2c_r(struct gspca_dev *gspca_dev, u8 reg, int len) switch (sd->sensor) { case SENSOR_ADCM1700: - case SENSOR_OM6802: /* i2c command = 90 (100 kHz) */ + case SENSOR_OM6802: + case SENSOR_GC0307: /* i2c command = a0 (100 kHz) */ mode[0] = 0x80 | 0x10; break; default: /* i2c command = 91 (400 kHz) */ @@ -1355,6 +1533,46 @@ static void ov7648_probe(struct gspca_dev *gspca_dev) gspca_dev->usb_buf[3], gspca_dev->usb_buf[4]); } +/* 0c45:6142 sensor may be po2030n, gc0305 or gc0307 */ +static void po2030n_probe(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + + /* check gc0307 */ + reg_w1(gspca_dev, 0x17, 0x62); + reg_w1(gspca_dev, 0x01, 0x08); + reg_w1(gspca_dev, 0x02, 0x22); + sd->i2c_addr = 0x21; + i2c_r(gspca_dev, 0x00, 1); + + reg_w1(gspca_dev, 0x01, 0x29); /* reset */ + reg_w1(gspca_dev, 0x17, 0x42); + + if (gspca_dev->usb_buf[4] == 0x99) { /* gc0307 (?) */ + PDEBUG(D_PROBE, "Sensor gc0307"); + sd->sensor = SENSOR_GC0307; + return; + } + + /* check po2030n */ + reg_w1(gspca_dev, 0x17, 0x62); + reg_w1(gspca_dev, 0x01, 0x0a); + sd->i2c_addr = 0x6e; + i2c_r(gspca_dev, 0x00, 2); + + reg_w1(gspca_dev, 0x01, 0x29); + reg_w1(gspca_dev, 0x17, 0x42); + + if (gspca_dev->usb_buf[3] == 0x20 + && gspca_dev->usb_buf[4] == 0x30) + PDEBUG(D_PROBE, "Sensor po2030n"); +/* sd->sensor = SENSOR_PO2030N; */ + else + PDEBUG(D_PROBE, "Unknown sensor ID %02x%02x", + gspca_dev->usb_buf[3], + gspca_dev->usb_buf[4]); +} + static void bridge_init(struct gspca_dev *gspca_dev, const u8 *sn9c1xx) { @@ -1375,8 +1593,10 @@ static void bridge_init(struct gspca_dev *gspca_dev, reg_w(gspca_dev, 0x08, &sn9c1xx[8], 2); reg_w(gspca_dev, 0x17, &sn9c1xx[0x17], 5); switch (sd->sensor) { + case SENSOR_GC0307: case SENSOR_OV7660: case SENSOR_PO1030: + case SENSOR_PO2030N: case SENSOR_SP80708: reg9a = reg9a_spec; break; @@ -1397,6 +1617,14 @@ static void bridge_init(struct gspca_dev *gspca_dev, reg_w1(gspca_dev, 0x01, 0x42); reg_w1(gspca_dev, 0x01, 0x42); break; + case SENSOR_GC0307: + msleep(50); + reg_w1(gspca_dev, 0x01, 0x61); + reg_w1(gspca_dev, 0x17, 0x22); + reg_w1(gspca_dev, 0x01, 0x60); + reg_w1(gspca_dev, 0x01, 0x40); + msleep(50); + break; case SENSOR_MT9V111: reg_w1(gspca_dev, 0x01, 0x61); reg_w1(gspca_dev, 0x17, 0x61); @@ -1439,6 +1667,12 @@ static void bridge_init(struct gspca_dev *gspca_dev, reg_w1(gspca_dev, 0x01, 0x60); reg_w1(gspca_dev, 0x01, 0x40); break; + case SENSOR_PO2030N: + reg_w1(gspca_dev, 0x01, 0x63); + reg_w1(gspca_dev, 0x17, 0x20); + reg_w1(gspca_dev, 0x01, 0x62); + reg_w1(gspca_dev, 0x01, 0x42); + break; case SENSOR_OV7660: /* fall thru */ case SENSOR_SP80708: @@ -1546,6 +1780,9 @@ static int sd_init(struct gspca_dev *gspca_dev) case SENSOR_OV7648: ov7648_probe(gspca_dev); break; + case SENSOR_PO2030N: + po2030n_probe(gspca_dev); + break; } regGpio[1] = 0x70; reg_w(gspca_dev, 0x01, regGpio, 2); @@ -1764,9 +2001,12 @@ static void setgamma(struct gspca_dev *gspca_dev) case SENSOR_MT9V111: gamma_base = gamma_spec_1; break; - case SENSOR_SP80708: + case SENSOR_GC0307: gamma_base = gamma_spec_2; break; + case SENSOR_SP80708: + gamma_base = gamma_spec_3; + break; default: gamma_base = gamma_def; break; @@ -1957,9 +2197,15 @@ static int sd_start(struct gspca_dev *gspca_dev) static const u8 CA[] = { 0x28, 0xd8, 0x14, 0xec }; static const u8 CA_adcm1700[] = { 0x14, 0xec, 0x0a, 0xf6 }; + static const u8 CA_po2030n[] = + { 0x1e, 0xe2, 0x14, 0xec }; static const u8 CE[] = { 0x32, 0xdd, 0x2d, 0xdd }; /* MI0360 */ + static const u8 CE_gc0307[] = + { 0x32, 0xce, 0x2d, 0xd3 }; static const u8 CE_ov76xx[] = { 0x32, 0xdd, 0x32, 0xdd }; + static const u8 CE_po2030n[] = + { 0x14, 0xe7, 0x1e, 0xdd }; /* create the JPEG header */ sd->jpeg_hdr = kmalloc(JPEG_HDR_SZ, GFP_KERNEL); @@ -2016,6 +2262,9 @@ static int sd_start(struct gspca_dev *gspca_dev) } reg_w1(gspca_dev, 0x18, sn9c1xx[0x18]); switch (sd->sensor) { + case SENSOR_GC0307: + reg17 = 0xa2; + break; case SENSOR_MT9V111: reg17 = 0xe0; break; @@ -2030,6 +2279,7 @@ static int sd_start(struct gspca_dev *gspca_dev) reg17 = 0xa0; break; case SENSOR_PO1030: + case SENSOR_PO2030N: reg17 = 0xa0; break; default: @@ -2054,12 +2304,16 @@ static int sd_start(struct gspca_dev *gspca_dev) case SENSOR_SP80708: reg_w1(gspca_dev, 0x9a, 0x05); break; + case SENSOR_GC0307: case SENSOR_MT9V111: reg_w1(gspca_dev, 0x9a, 0x07); break; case SENSOR_OV7648: reg_w1(gspca_dev, 0x9a, 0x0a); break; + case SENSOR_PO2030N: + reg_w1(gspca_dev, 0x9a, 0x06); + break; default: reg_w1(gspca_dev, 0x9a, 0x08); break; @@ -2084,6 +2338,11 @@ static int sd_start(struct gspca_dev *gspca_dev) reg1 = 0x46; reg17 = 0xe2; break; + case SENSOR_GC0307: + init = gc0307_sensor_param1; + reg17 = 0xa2; + reg1 = 0x44; + break; case SENSOR_MO4000: if (mode) { /* reg1 = 0x46; * 320 clk 48Mhz 60fp/s */ @@ -2133,6 +2392,11 @@ static int sd_start(struct gspca_dev *gspca_dev) reg17 = 0xa2; reg1 = 0x44; break; + case SENSOR_PO2030N: + init = po2030n_sensor_param1; + reg1 = 0x46; + reg17 = 0xa2; + break; default: /* case SENSOR_SP80708: */ init = sp80708_sensor_param1; @@ -2152,10 +2416,18 @@ static int sd_start(struct gspca_dev *gspca_dev) } reg_w(gspca_dev, 0xc0, C0, 6); - if (sd->sensor == SENSOR_ADCM1700) + switch (sd->sensor) { + case SENSOR_ADCM1700: + case SENSOR_GC0307: reg_w(gspca_dev, 0xca, CA_adcm1700, 4); - else + break; + case SENSOR_PO2030N: + reg_w(gspca_dev, 0xca, CA_po2030n, 4); + break; + default: reg_w(gspca_dev, 0xca, CA, 4); + break; + } switch (sd->sensor) { case SENSOR_ADCM1700: case SENSOR_OV7630: @@ -2163,6 +2435,12 @@ static int sd_start(struct gspca_dev *gspca_dev) case SENSOR_OV7660: reg_w(gspca_dev, 0xce, CE_ov76xx, 4); break; + case SENSOR_GC0307: + reg_w(gspca_dev, 0xce, CE_gc0307, 4); + break; + case SENSOR_PO2030N: + reg_w(gspca_dev, 0xce, CE_po2030n, 4); + break; default: reg_w(gspca_dev, 0xce, CE, 4); /* ?? {0x1e, 0xdd, 0x2d, 0xe7} */ @@ -2200,6 +2478,9 @@ static void sd_stopN(struct gspca_dev *gspca_dev) data = 0x0b; switch (sd->sensor) { + case SENSOR_GC0307: + data = 0x29; + break; case SENSOR_HV7131R: i2c_w8(gspca_dev, stophv7131); data = 0x2b; @@ -2676,7 +2957,7 @@ static const __devinitdata struct usb_device_id device_table[] = { #endif {USB_DEVICE(0x0c45, 0x613c), BS(SN9C120, HV7131R)}, {USB_DEVICE(0x0c45, 0x613e), BS(SN9C120, OV7630)}, -/* {USB_DEVICE(0x0c45, 0x6142), BS(SN9C120, PO2030N)}, *sn9c120b*/ + {USB_DEVICE(0x0c45, 0x6142), BS(SN9C120, PO2030N)}, /*sn9c120b*/ {USB_DEVICE(0x0c45, 0x6143), BS(SN9C120, SP80708)}, /*sn9c120b*/ {USB_DEVICE(0x0c45, 0x6148), BS(SN9C120, OM6802)}, /*sn9c120b*/ {USB_DEVICE(0x0c45, 0x614a), BS(SN9C120, ADCM1700)}, /*sn9c120b*/ -- cgit v1.2.3-70-g09d2 From e99ac54da6d3e44e6152aaab693fa311279dec7c Mon Sep 17 00:00:00 2001 From: Brian Johnson Date: Tue, 16 Mar 2010 13:58:28 -0300 Subject: V4L/DVB: gspca - sn9c20x: Add support for cameras using the MT9M112 sensor Adds the following models: - 0c45:624c - 0c45:628c - 0458:704a - 0458:704c Signed-off-by: Brian Johnson Signed-off-by: Mauro Carvalho Chehab --- Documentation/video4linux/gspca.txt | 4 ++++ drivers/media/video/gspca/sn9c20x.c | 44 ++++++++++++++++++++++++++++++++++--- 2 files changed, 45 insertions(+), 3 deletions(-) (limited to 'Documentation') diff --git a/Documentation/video4linux/gspca.txt b/Documentation/video4linux/gspca.txt index 9475e1e1441..8f3f5d33327 100644 --- a/Documentation/video4linux/gspca.txt +++ b/Documentation/video4linux/gspca.txt @@ -50,6 +50,8 @@ zc3xx 0458:700f Genius VideoCam Web V2 sonixj 0458:7025 Genius Eye 311Q sn9c20x 0458:7029 Genius Look 320s sonixj 0458:702e Genius Slim 310 NB +sn9c20x 0458:704a Genius Slim 1320 +sn9c20x 0458:704c Genius i-Look 1321 sn9c20x 045e:00f4 LifeCam VX-6000 (SN9C20x + OV9650) sonixj 045e:00f5 MicroSoft VX3000 sonixj 045e:00f7 MicroSoft VX1000 @@ -312,6 +314,7 @@ sonixj 0c45:614a Frontech E-Ccam (JIL-2225) sn9c20x 0c45:6240 PC Camera (SN9C201 + MT9M001) sn9c20x 0c45:6242 PC Camera (SN9C201 + MT9M111) sn9c20x 0c45:6248 PC Camera (SN9C201 + OV9655) +sn9c20x 0c45:624c PC Camera (SN9C201 + MT9M112) sn9c20x 0c45:624e PC Camera (SN9C201 + SOI968) sn9c20x 0c45:624f PC Camera (SN9C201 + OV9650) sn9c20x 0c45:6251 PC Camera (SN9C201 + OV9650) @@ -324,6 +327,7 @@ sn9c20x 0c45:627f PC Camera (SN9C201 + OV9650) sn9c20x 0c45:6280 PC Camera (SN9C202 + MT9M001) sn9c20x 0c45:6282 PC Camera (SN9C202 + MT9M111) sn9c20x 0c45:6288 PC Camera (SN9C202 + OV9655) +sn9c20x 0c45:628c PC Camera (SN9C201 + MT9M112) sn9c20x 0c45:628e PC Camera (SN9C202 + SOI968) sn9c20x 0c45:628f PC Camera (SN9C202 + OV9650) sn9c20x 0c45:62a0 PC Camera (SN9C202 + OV7670) diff --git a/drivers/media/video/gspca/sn9c20x.c b/drivers/media/video/gspca/sn9c20x.c index 06c75dbecae..479fdbb9e67 100644 --- a/drivers/media/video/gspca/sn9c20x.c +++ b/drivers/media/video/gspca/sn9c20x.c @@ -50,7 +50,8 @@ MODULE_LICENSE("GPL"); #define SENSOR_MT9V112 7 #define SENSOR_MT9M001 8 #define SENSOR_MT9M111 9 -#define SENSOR_HV7131R 10 +#define SENSOR_MT9M112 10 +#define SENSOR_HV7131R 11 #define SENSOR_MT9VPRB 20 /* camera flags */ @@ -731,6 +732,7 @@ static u16 i2c_ident[] = { V4L2_IDENT_MT9V112, V4L2_IDENT_MT9M001C12ST, V4L2_IDENT_MT9M111, + V4L2_IDENT_MT9M112, V4L2_IDENT_HV7131R, }; @@ -1062,6 +1064,13 @@ static struct i2c_reg_u16 mt9m111_init[] = { {0xf0, 0x0000}, }; +static struct i2c_reg_u16 mt9m112_init[] = { + {0xf0, 0x0000}, {0x0d, 0x0021}, {0x0d, 0x0008}, + {0xf0, 0x0001}, {0x3a, 0x4300}, {0x9b, 0x4300}, + {0x06, 0x708e}, {0xf0, 0x0002}, {0x2e, 0x0a1e}, + {0xf0, 0x0000}, +}; + static struct i2c_reg_u8 hv7131r_init[] = { {0x02, 0x08}, {0x02, 0x00}, {0x01, 0x08}, {0x02, 0x00}, {0x20, 0x00}, {0x21, 0xd0}, @@ -1388,6 +1397,23 @@ static int mt9v_init_sensor(struct gspca_dev *gspca_dev) return -ENODEV; } +static int mt9m112_init_sensor(struct gspca_dev *gspca_dev) +{ + struct sd *sd = (struct sd *) gspca_dev; + int i; + for (i = 0; i < ARRAY_SIZE(mt9m112_init); i++) { + if (i2c_w2(gspca_dev, mt9m112_init[i].reg, + mt9m112_init[i].val) < 0) { + err("MT9M112 sensor initialization failed"); + return -ENODEV; + } + } + gspca_dev->ctrl_dis = (1 << EXPOSURE_IDX) | (1 << AUTOGAIN_IDX) | (1 << GAIN_IDX); + sd->hstart = 0; + sd->vstart = 2; + return 0; +} + static int mt9m111_init_sensor(struct gspca_dev *gspca_dev) { struct sd *sd = (struct sd *) gspca_dev; @@ -1553,6 +1579,7 @@ static int set_hvflip(struct gspca_dev *gspca_dev) value2 |= 0x4020; i2c_w2(gspca_dev, 0x20, value2); break; + case SENSOR_MT9M112: case SENSOR_MT9M111: case SENSOR_MT9V112: i2c_r2(gspca_dev, 0x20, &value2); @@ -1878,7 +1905,7 @@ static int sd_dbg_g_register(struct gspca_dev *gspca_dev, if (reg->match.addr != sd->i2c_addr) return -EINVAL; if (sd->sensor >= SENSOR_MT9V011 && - sd->sensor <= SENSOR_MT9M111) { + sd->sensor <= SENSOR_MT9M112) { if (i2c_r2(gspca_dev, reg->reg, (u16 *)®->val) < 0) return -EINVAL; } else { @@ -1907,7 +1934,7 @@ static int sd_dbg_s_register(struct gspca_dev *gspca_dev, if (reg->match.addr != sd->i2c_addr) return -EINVAL; if (sd->sensor >= SENSOR_MT9V011 && - sd->sensor <= SENSOR_MT9M111) { + sd->sensor <= SENSOR_MT9M112) { if (i2c_w2(gspca_dev, reg->reg, reg->val) < 0) return -EINVAL; } else { @@ -1955,6 +1982,7 @@ static int sd_config(struct gspca_dev *gspca_dev, sd->flags = (id->driver_info >> 16) & 0xff; switch (sd->sensor) { + case SENSOR_MT9M112: case SENSOR_MT9M111: case SENSOR_OV9650: case SENSOR_SOI968: @@ -2051,6 +2079,11 @@ static int sd_init(struct gspca_dev *gspca_dev) return -ENODEV; info("MT9M111 sensor detected"); break; + case SENSOR_MT9M112: + if (mt9m112_init_sensor(gspca_dev) < 0) + return -ENODEV; + info("MT9M112 sensor detected"); + break; case SENSOR_MT9M001: if (mt9m001_init_sensor(gspca_dev) < 0) return -ENODEV; @@ -2110,6 +2143,7 @@ static void configure_sensor_output(struct gspca_dev *gspca_dev, int mode) i2c_w1(gspca_dev, 0x12, (value & 0x7) | 0x40); } break; + case SENSOR_MT9M112: case SENSOR_MT9M111: if (mode & MODE_SXGA) { i2c_w2(gspca_dev, 0xf0, 0x0002); @@ -2399,6 +2433,7 @@ static const __devinitdata struct usb_device_id device_table[] = { {USB_DEVICE(0x0c45, 0x6240), SN9C20X(MT9M001, 0x5d, 0)}, {USB_DEVICE(0x0c45, 0x6242), SN9C20X(MT9M111, 0x5d, 0)}, {USB_DEVICE(0x0c45, 0x6248), SN9C20X(OV9655, 0x30, 0)}, + {USB_DEVICE(0x0c45, 0x624c), SN9C20X(MT9M112, 0x5d, 0)}, {USB_DEVICE(0x0c45, 0x624e), SN9C20X(SOI968, 0x30, (HAS_BUTTON | LED_REVERSE))}, {USB_DEVICE(0x0c45, 0x624f), SN9C20X(OV9650, 0x30, FLIP_DETECT)}, @@ -2412,6 +2447,7 @@ static const __devinitdata struct usb_device_id device_table[] = { {USB_DEVICE(0x0c45, 0x6280), SN9C20X(MT9M001, 0x5d, 0)}, {USB_DEVICE(0x0c45, 0x6282), SN9C20X(MT9M111, 0x5d, 0)}, {USB_DEVICE(0x0c45, 0x6288), SN9C20X(OV9655, 0x30, HAS_BUTTON)}, + {USB_DEVICE(0x0c45, 0x628c), SN9C20X(MT9M112, 0x5d, 0)}, {USB_DEVICE(0x0c45, 0x628e), SN9C20X(SOI968, 0x30, 0)}, {USB_DEVICE(0x0c45, 0x628f), SN9C20X(OV9650, 0x30, 0)}, {USB_DEVICE(0x0c45, 0x62a0), SN9C20X(OV7670, 0x21, 0)}, @@ -2422,6 +2458,8 @@ static const __devinitdata struct usb_device_id device_table[] = { {USB_DEVICE(0x045e, 0x00f4), SN9C20X(OV9650, 0x30, 0)}, {USB_DEVICE(0x145f, 0x013d), SN9C20X(OV7660, 0x21, 0)}, {USB_DEVICE(0x0458, 0x7029), SN9C20X(HV7131R, 0x11, 0)}, + {USB_DEVICE(0x0458, 0x704a), SN9C20X(MT9M112, 0x5d, 0)}, + {USB_DEVICE(0x0458, 0x704c), SN9C20X(MT9M112, 0x5d, 0)}, {USB_DEVICE(0xa168, 0x0610), SN9C20X(HV7131R, 0x11, 0)}, {USB_DEVICE(0xa168, 0x0611), SN9C20X(HV7131R, 0x11, 0)}, {USB_DEVICE(0xa168, 0x0613), SN9C20X(HV7131R, 0x11, 0)}, -- cgit v1.2.3-70-g09d2 From 7a01f6dbc7abb85a6ec048dd45db92ef1b91fe78 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Thu, 11 Mar 2010 21:27:59 -0300 Subject: V4L/DVB: videodev2: introduce a common control for chroma gain Introduce a new control for modifying the chroma gain. This allows for user intervention in abnormal signal conditions cases where the decoder's chroma AGC cannot compensate and the value needs to be adjusted manually. This work was sponsored by EyeMagnet Limited. Signed-off-by: Devin Heitmueller Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/v4l/controls.xml | 6 ++++++ include/linux/videodev2.h | 5 ++++- 2 files changed, 10 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/DocBook/v4l/controls.xml b/Documentation/DocBook/v4l/controls.xml index f4645061041..e1bdbb6eff8 100644 --- a/Documentation/DocBook/v4l/controls.xml +++ b/Documentation/DocBook/v4l/controls.xml @@ -266,6 +266,12 @@ minimum value disables backlight compensation. boolean Chroma automatic gain control. + + V4L2_CID_CHROMA_GAIN + integer + Adjusts the Chroma gain control (for use when chroma AGC + is disabled). + V4L2_CID_COLOR_KILLER boolean diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 3c265603d73..418dacf5261 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -1030,8 +1030,11 @@ enum v4l2_colorfx { #define V4L2_CID_ROTATE (V4L2_CID_BASE+34) #define V4L2_CID_BG_COLOR (V4L2_CID_BASE+35) + +#define V4L2_CID_CHROMA_GAIN (V4L2_CID_BASE+36) + /* last CID + 1 */ -#define V4L2_CID_LASTP1 (V4L2_CID_BASE+36) +#define V4L2_CID_LASTP1 (V4L2_CID_BASE+37) /* MPEG-class control IDs defined by V4L2 */ #define V4L2_CID_MPEG_BASE (V4L2_CTRL_CLASS_MPEG | 0x900) -- cgit v1.2.3-70-g09d2 From 449adf94ada543026a0fc4d0139faf60304b899f Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Mon, 22 Mar 2010 14:37:52 -0300 Subject: V4L/DVB: Fix cx88 and em28xx cardlists There are some missing entries there Signed-off-by: Mauro Carvalho Chehab --- Documentation/video4linux/CARDLIST.cx88 | 1 + Documentation/video4linux/CARDLIST.em28xx | 1 + 2 files changed, 2 insertions(+) (limited to 'Documentation') diff --git a/Documentation/video4linux/CARDLIST.cx88 b/Documentation/video4linux/CARDLIST.cx88 index 7ec3c4e4b60..f2510541373 100644 --- a/Documentation/video4linux/CARDLIST.cx88 +++ b/Documentation/video4linux/CARDLIST.cx88 @@ -82,3 +82,4 @@ 81 -> Leadtek WinFast DTV1800 Hybrid [107d:6654] 82 -> WinFast DTV2000 H rev. J [107d:6f2b] 83 -> Prof 7301 DVB-S/S2 [b034:3034] + 84 -> Samsung SMT 7020 DVB-S [18ac:dc00,18ac:dccd] diff --git a/Documentation/video4linux/CARDLIST.em28xx b/Documentation/video4linux/CARDLIST.em28xx index 0c166ff003a..76c39081c29 100644 --- a/Documentation/video4linux/CARDLIST.em28xx +++ b/Documentation/video4linux/CARDLIST.em28xx @@ -70,3 +70,4 @@ 72 -> Gadmei UTV330+ (em2861) 73 -> Reddo DVB-C USB TV Box (em2870) 74 -> Actionmaster/LinXcel/Digitus VC211A (em2800) + 75 -> Dikom DK300 (em2882) -- cgit v1.2.3-70-g09d2 From 27e5842a9ad7a929f680ed151b5b1126456fb5f6 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Wed, 24 Mar 2010 09:34:39 -0300 Subject: V4L/DVB: saa7134: Use the same name on CARDLIST as found at the driver Signed-off-by: Mauro Carvalho Chehab --- Documentation/video4linux/CARDLIST.saa7134 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/video4linux/CARDLIST.saa7134 b/Documentation/video4linux/CARDLIST.saa7134 index 3de042a9c4f..bb3d5faa34e 100644 --- a/Documentation/video4linux/CARDLIST.saa7134 +++ b/Documentation/video4linux/CARDLIST.saa7134 @@ -175,4 +175,4 @@ 174 -> Asus Europa Hybrid OEM [1043:4847] 175 -> Leadtek Winfast DTV1000S [107d:6655] 176 -> Beholder BeholdTV 505 RDS [0000:5051] -177 -> Hawell HW-404M7 / HW-808M7 +177 -> Hawell HW-404M7 -- cgit v1.2.3-70-g09d2 From 443fed9fa42bbeacdb8d336b8a5002a262cac15c Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Fri, 19 Mar 2010 23:53:12 -0300 Subject: V4L/DVB: em28xx: add em286x/tvp5150 reference design Add support for design which has an em2863/tvp5150 and uses the standard empia USB ID. In Sander's case, it was branded as an "Eminent model EM3705" Thanks to Sander Van Ginkel for testing and help debugging the support. [mchehab@redhat.com: move it to a vague card number slot (card=29)] Signed-off-by: Devin Heitmueller Signed-off-by: Mauro Carvalho Chehab --- Documentation/video4linux/CARDLIST.em28xx | 3 ++- drivers/media/video/em28xx/em28xx-cards.c | 17 +++++++++++++++++ drivers/media/video/em28xx/em28xx.h | 1 + 3 files changed, 20 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/video4linux/CARDLIST.em28xx b/Documentation/video4linux/CARDLIST.em28xx index 76c39081c29..3a623aaeae5 100644 --- a/Documentation/video4linux/CARDLIST.em28xx +++ b/Documentation/video4linux/CARDLIST.em28xx @@ -1,5 +1,5 @@ 0 -> Unknown EM2800 video grabber (em2800) [eb1a:2800] - 1 -> Unknown EM2750/28xx video grabber (em2820/em2840) [eb1a:2710,eb1a:2820,eb1a:2821,eb1a:2860,eb1a:2861,eb1a:2862,eb1a:2870,eb1a:2881,eb1a:2883,eb1a:2868] + 1 -> Unknown EM2750/28xx video grabber (em2820/em2840) [eb1a:2710,eb1a:2820,eb1a:2821,eb1a:2860,eb1a:2861,eb1a:2862,eb1a:2863,eb1a:2870,eb1a:2881,eb1a:2883,eb1a:2868] 2 -> Terratec Cinergy 250 USB (em2820/em2840) [0ccd:0036] 3 -> Pinnacle PCTV USB 2 (em2820/em2840) [2304:0208] 4 -> Hauppauge WinTV USB 2 (em2820/em2840) [2040:4200,2040:4201] @@ -27,6 +27,7 @@ 26 -> Hercules Smart TV USB 2.0 (em2820/em2840) 27 -> Pinnacle PCTV USB 2 (Philips FM1216ME) (em2820/em2840) 28 -> Leadtek Winfast USB II Deluxe (em2820/em2840) + 29 -> EM2860/TVP5150 Reference Design (em2860) 30 -> Videology 20K14XUSB USB2.0 (em2820/em2840) 31 -> Usbgear VD204v9 (em2821) 32 -> Supercomp USB 2.0 TV (em2821) diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 5ed834ee756..7b0ca583de5 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -681,6 +681,20 @@ struct em28xx_board em28xx_boards[] = { .amux = EM28XX_AMUX_LINE_IN, } }, }, + [EM2860_BOARD_TVP5150_REFERENCE_DESIGN] = { + .name = "EM2860/TVP5150 Reference Design", + .tuner_type = TUNER_ABSENT, /* Capture only device */ + .decoder = EM28XX_TVP5150, + .input = { { + .type = EM28XX_VMUX_COMPOSITE1, + .vmux = TVP5150_COMPOSITE1, + .amux = EM28XX_AMUX_LINE_IN, + }, { + .type = EM28XX_VMUX_SVIDEO, + .vmux = TVP5150_SVIDEO, + .amux = EM28XX_AMUX_LINE_IN, + } }, + }, [EM2861_BOARD_PLEXTOR_PX_TV100U] = { .name = "Plextor ConvertX PX-TV100U", .tuner_type = TUNER_TNF_5335MF, @@ -1676,6 +1690,8 @@ struct usb_device_id em28xx_id_table[] = { .driver_info = EM2820_BOARD_UNKNOWN }, { USB_DEVICE(0xeb1a, 0x2862), .driver_info = EM2820_BOARD_UNKNOWN }, + { USB_DEVICE(0xeb1a, 0x2863), + .driver_info = EM2820_BOARD_UNKNOWN }, { USB_DEVICE(0xeb1a, 0x2870), .driver_info = EM2820_BOARD_UNKNOWN }, { USB_DEVICE(0xeb1a, 0x2881), @@ -1796,6 +1812,7 @@ static struct em28xx_hash_table em28xx_i2c_hash[] = { {0xb06a32c3, EM2800_BOARD_TERRATEC_CINERGY_200, TUNER_LG_PAL_NEW_TAPC}, {0xf51200e3, EM2800_BOARD_VGEAR_POCKETTV, TUNER_LG_PAL_NEW_TAPC}, {0x1ba50080, EM2860_BOARD_SAA711X_REFERENCE_DESIGN, TUNER_ABSENT}, + {0x77800080, EM2860_BOARD_TVP5150_REFERENCE_DESIGN, TUNER_ABSENT}, {0xc51200e3, EM2820_BOARD_GADMEI_TVR200, TUNER_LG_PAL_NEW_TAPC}, {0x4ba50080, EM2861_BOARD_GADMEI_UTV330PLUS, TUNER_TNF_5335MF}, }; diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h index 526c0658215..eec12910c8c 100644 --- a/drivers/media/video/em28xx/em28xx.h +++ b/drivers/media/video/em28xx/em28xx.h @@ -68,6 +68,7 @@ #define EM2820_BOARD_HERCULES_SMART_TV_USB2 26 #define EM2820_BOARD_PINNACLE_USB_2_FM1216ME 27 #define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28 +#define EM2860_BOARD_TVP5150_REFERENCE_DESIGN 29 #define EM2820_BOARD_VIDEOLOGY_20K14XUSB 30 #define EM2821_BOARD_USBGEAR_VD204 31 #define EM2821_BOARD_SUPERCOMP_USB_2 32 -- cgit v1.2.3-70-g09d2 From b3e212dcbddb10b44d472a5f4c23d5aa0b5876ca Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Mon, 22 Mar 2010 04:52:21 -0300 Subject: V4L/DVB: v4l: add V4L2_PIX_FMT_Y4 and V4L2_PIX_FMT_Y6 pixelformats Old 4 and 6 bit greyscale pixel formats for the old bw-qcam webcam. This is needed to convert it to V4L2. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/v4l/pixfmt.xml | 12 ++++++++++++ include/linux/videodev2.h | 2 ++ 2 files changed, 14 insertions(+) (limited to 'Documentation') diff --git a/Documentation/DocBook/v4l/pixfmt.xml b/Documentation/DocBook/v4l/pixfmt.xml index 885968d6a2f..c4ad0a8e42d 100644 --- a/Documentation/DocBook/v4l/pixfmt.xml +++ b/Documentation/DocBook/v4l/pixfmt.xml @@ -792,6 +792,18 @@ http://www.thedirks.org/winnov/ 'YYUV' unknown + + V4L2_PIX_FMT_Y4 + 'Y04 ' + Old 4-bit greyscale format. Only the least significant 4 bits of each byte are used, +the other bits are set to 0. + + + V4L2_PIX_FMT_Y6 + 'Y06 ' + Old 6-bit greyscale format. Only the least significant 6 bits of each byte are used, +the other bits are set to 0. + diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 418dacf5261..6fb0b2daa5b 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -294,6 +294,8 @@ struct v4l2_pix_format { /* Grey formats */ #define V4L2_PIX_FMT_GREY v4l2_fourcc('G', 'R', 'E', 'Y') /* 8 Greyscale */ +#define V4L2_PIX_FMT_Y4 v4l2_fourcc('Y', '0', '4', ' ') /* 4 Greyscale */ +#define V4L2_PIX_FMT_Y6 v4l2_fourcc('Y', '0', '6', ' ') /* 6 Greyscale */ #define V4L2_PIX_FMT_Y10 v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale */ #define V4L2_PIX_FMT_Y16 v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */ -- cgit v1.2.3-70-g09d2 From 48213fe3f981d2cbccd926d6858fa9cf8617beed Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Wed, 20 Jan 2010 12:12:57 -0300 Subject: V4L/DVB: v4l: Add V4L2_CID_IRIS_ABSOLUTE and V4L2_CID_IRIS_RELATIVE controls Those control, as their names imply, control the camera aperture settings. Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/v4l/compat.xml | 11 +++++++++++ Documentation/DocBook/v4l/controls.xml | 19 +++++++++++++++++++ Documentation/DocBook/v4l/videodev2.h.xml | 3 +++ drivers/media/video/v4l2-common.c | 3 +++ include/linux/videodev2.h | 3 +++ 5 files changed, 39 insertions(+) (limited to 'Documentation') diff --git a/Documentation/DocBook/v4l/compat.xml b/Documentation/DocBook/v4l/compat.xml index b9dbdf9e6d2..854235b5208 100644 --- a/Documentation/DocBook/v4l/compat.xml +++ b/Documentation/DocBook/v4l/compat.xml @@ -2332,6 +2332,17 @@ more information. +
+ V4L2 in Linux 2.6.34 + + + Added +V4L2_CID_IRIS_ABSOLUTE and +V4L2_CID_IRIS_RELATIVE controls to the + Camera controls class. + + +
diff --git a/Documentation/DocBook/v4l/controls.xml b/Documentation/DocBook/v4l/controls.xml index e1bdbb6eff8..7e0c6874713 100644 --- a/Documentation/DocBook/v4l/controls.xml +++ b/Documentation/DocBook/v4l/controls.xml @@ -1830,6 +1830,25 @@ wide-angle direction. The zoom speed unit is driver-specific. + + V4L2_CID_IRIS_ABSOLUTE  + integer + This control sets the +camera's aperture to the specified value. The unit is undefined. +Larger values open the iris wider, smaller values close it. + + + + + V4L2_CID_IRIS_RELATIVE  + integer + This control modifies the +camera's aperture by the specified amount. The unit is undefined. +Positive values open the iris one step further, negative values close +it one step further. This is a write-only control. + + + V4L2_CID_PRIVACY  boolean diff --git a/Documentation/DocBook/v4l/videodev2.h.xml b/Documentation/DocBook/v4l/videodev2.h.xml index 06832594065..c18dfebedef 100644 --- a/Documentation/DocBook/v4l/videodev2.h.xml +++ b/Documentation/DocBook/v4l/videodev2.h.xml @@ -1271,6 +1271,9 @@ enum v4l2_exposure_auto_type { #define V4L2_CID_PRIVACY (V4L2_CID_CAMERA_CLASS_BASE+16) +#define V4L2_CID_IRIS_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+17) +#define V4L2_CID_IRIS_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+18) + /* FM Modulator class control IDs */ #define V4L2_CID_FM_TX_CLASS_BASE (V4L2_CTRL_CLASS_FM_TX | 0x900) #define V4L2_CID_FM_TX_CLASS (V4L2_CTRL_CLASS_FM_TX | 1) diff --git a/drivers/media/video/v4l2-common.c b/drivers/media/video/v4l2-common.c index cd1f21d9b07..67944f53a79 100644 --- a/drivers/media/video/v4l2-common.c +++ b/drivers/media/video/v4l2-common.c @@ -489,6 +489,8 @@ const char *v4l2_ctrl_get_name(u32 id) case V4L2_CID_FOCUS_ABSOLUTE: return "Focus, Absolute"; case V4L2_CID_FOCUS_RELATIVE: return "Focus, Relative"; case V4L2_CID_FOCUS_AUTO: return "Focus, Automatic"; + case V4L2_CID_IRIS_ABSOLUTE: return "Iris, Absolute"; + case V4L2_CID_IRIS_RELATIVE: return "Iris, Relative"; case V4L2_CID_ZOOM_ABSOLUTE: return "Zoom, Absolute"; case V4L2_CID_ZOOM_RELATIVE: return "Zoom, Relative"; case V4L2_CID_ZOOM_CONTINUOUS: return "Zoom, Continuous"; @@ -643,6 +645,7 @@ int v4l2_ctrl_query_fill(struct v4l2_queryctrl *qctrl, s32 min, s32 max, s32 ste case V4L2_CID_PAN_RELATIVE: case V4L2_CID_TILT_RELATIVE: case V4L2_CID_FOCUS_RELATIVE: + case V4L2_CID_IRIS_RELATIVE: case V4L2_CID_ZOOM_RELATIVE: qctrl->flags |= V4L2_CTRL_FLAG_WRITE_ONLY; break; diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 6fb0b2daa5b..2559b182b8c 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -1282,6 +1282,9 @@ enum v4l2_exposure_auto_type { #define V4L2_CID_PRIVACY (V4L2_CID_CAMERA_CLASS_BASE+16) +#define V4L2_CID_IRIS_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+17) +#define V4L2_CID_IRIS_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+18) + /* FM Modulator class control IDs */ #define V4L2_CID_FM_TX_CLASS_BASE (V4L2_CTRL_CLASS_FM_TX | 0x900) #define V4L2_CID_FM_TX_CLASS (V4L2_CTRL_CLASS_FM_TX | 1) -- cgit v1.2.3-70-g09d2 From 860553023bfed0179b3fe5d01838635f54a314a3 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 6 Apr 2010 06:41:28 -0300 Subject: V4L/DVB: V4L2 Spec: fix V4L2_CTRL_TYPE_CTRL_CLASS documentation The spec says that the control ID for these types of controls is the same as that of the control class. But it should read: 'control class + 1'. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/v4l/vidioc-queryctrl.xml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/DocBook/v4l/vidioc-queryctrl.xml b/Documentation/DocBook/v4l/vidioc-queryctrl.xml index 4876ff1a1a0..8e0e055ac93 100644 --- a/Documentation/DocBook/v4l/vidioc-queryctrl.xml +++ b/Documentation/DocBook/v4l/vidioc-queryctrl.xml @@ -325,7 +325,7 @@ should be part of the control documentation. n/a This is not a control. When VIDIOC_QUERYCTRL is called with a control ID -equal to a control class code (see ), the +equal to a control class code (see ) + 1, the ioctl returns the name of the control class and this control type. Older drivers which do not support this feature return an &EINVAL;. -- cgit v1.2.3-70-g09d2 From e426e8663f028272b99f91e57bbbab6fda603bf1 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Tue, 6 Apr 2010 10:32:19 -0300 Subject: V4L/DVB: DocBook/v4l/compat.xml: add missing
The indentation of the sections had gone wrong, causing a mistake with section nesting. Fixed. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/v4l/compat.xml | 115 ++++++++++++++++++----------------- 1 file changed, 58 insertions(+), 57 deletions(-) (limited to 'Documentation') diff --git a/Documentation/DocBook/v4l/compat.xml b/Documentation/DocBook/v4l/compat.xml index 854235b5208..b42b935913c 100644 --- a/Documentation/DocBook/v4l/compat.xml +++ b/Documentation/DocBook/v4l/compat.xml @@ -2343,15 +2343,15 @@ more information. - + -
- Relation of V4L2 to other Linux multimedia APIs +
+ Relation of V4L2 to other Linux multimedia APIs -
- X Video Extension +
+ X Video Extension - The X Video Extension (abbreviated XVideo or just Xv) is + The X Video Extension (abbreviated XVideo or just Xv) is an extension of the X Window system, implemented for example by the XFree86 project. Its scope is similar to V4L2, an API to video capture and output devices for X clients. Xv allows applications to display @@ -2362,7 +2362,7 @@ capture or output still images in XPixmaps extension available across many operating systems and architectures. - Because the driver is embedded into the X server Xv has a + Because the driver is embedded into the X server Xv has a number of advantages over the V4L2 video overlay interface. The driver can easily determine the overlay target, &ie; visible graphics memory or off-screen buffers for a @@ -2371,16 +2371,16 @@ overlay, scaling or color-keying, or the clipping functions of the video capture hardware, always in sync with drawing operations or windows moving or changing their stacking order. - To combine the advantages of Xv and V4L a special Xv + To combine the advantages of Xv and V4L a special Xv driver exists in XFree86 and XOrg, just programming any overlay capable Video4Linux device it finds. To enable it /etc/X11/XF86Config must contain these lines: - + Section "Module" Load "v4l" EndSection - As of XFree86 4.2 this driver still supports only V4L + As of XFree86 4.2 this driver still supports only V4L ioctls, however it should work just fine with all V4L2 devices through the V4L2 backward-compatibility layer. Since V4L2 permits multiple opens it is possible (if supported by the V4L2 driver) to capture @@ -2388,83 +2388,84 @@ video while an X client requested video overlay. Restrictions of simultaneous capturing and overlay are discussed in apply. - Only marginally related to V4L2, XFree86 extended Xv to + Only marginally related to V4L2, XFree86 extended Xv to support hardware YUV to RGB conversion and scaling for faster video playback, and added an interface to MPEG-2 decoding hardware. This API is useful to display images captured with V4L2 devices. -
+
-
- Digital Video +
+ Digital Video - V4L2 does not support digital terrestrial, cable or + V4L2 does not support digital terrestrial, cable or satellite broadcast. A separate project aiming at digital receivers exists. You can find its homepage at http://linuxtv.org. The Linux DVB API has no connection to the V4L2 API except that drivers for hybrid hardware may support both. -
+
-
- Audio Interfaces +
+ Audio Interfaces - [to do - OSS/ALSA] + [to do - OSS/ALSA] +
-
-
- Experimental API Elements +
+ Experimental API Elements - The following V4L2 API elements are currently experimental + The following V4L2 API elements are currently experimental and may change in the future. - - - Video Output Overlay (OSD) Interface, + + Video Output Overlay (OSD) Interface, . - + - V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY, + V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY, &v4l2-buf-type;, . - - - V4L2_CAP_VIDEO_OUTPUT_OVERLAY, + + + V4L2_CAP_VIDEO_OUTPUT_OVERLAY, &VIDIOC-QUERYCAP; ioctl, . - - - &VIDIOC-ENUM-FRAMESIZES; and + + + &VIDIOC-ENUM-FRAMESIZES; and &VIDIOC-ENUM-FRAMEINTERVALS; ioctls. - - - &VIDIOC-G-ENC-INDEX; ioctl. - - - &VIDIOC-ENCODER-CMD; and &VIDIOC-TRY-ENCODER-CMD; + + + &VIDIOC-G-ENC-INDEX; ioctl. + + + &VIDIOC-ENCODER-CMD; and &VIDIOC-TRY-ENCODER-CMD; ioctls. - - - &VIDIOC-DBG-G-REGISTER; and &VIDIOC-DBG-S-REGISTER; + + + &VIDIOC-DBG-G-REGISTER; and &VIDIOC-DBG-S-REGISTER; ioctls. - - - &VIDIOC-DBG-G-CHIP-IDENT; ioctl. - - -
+ + + &VIDIOC-DBG-G-CHIP-IDENT; ioctl. + + +
-
- Obsolete API Elements +
+ Obsolete API Elements - The following V4L2 API elements were superseded by new + The following V4L2 API elements were superseded by new interfaces and should not be implemented in new drivers. - - - VIDIOC_G_MPEGCOMP and + + + VIDIOC_G_MPEGCOMP and VIDIOC_S_MPEGCOMP ioctls. Use Extended Controls, . - - + + +
diff --git a/Documentation/DocBook/v4l/v4l2.xml b/Documentation/DocBook/v4l/v4l2.xml index 060105af49e..9737243377a 100644 --- a/Documentation/DocBook/v4l/v4l2.xml +++ b/Documentation/DocBook/v4l/v4l2.xml @@ -401,6 +401,7 @@ and discussions on the V4L mailing list.
&sub-dev-teletext;
&sub-dev-radio;
&sub-dev-rds;
+
&sub-dev-event;
@@ -426,6 +427,7 @@ and discussions on the V4L mailing list. &sub-cropcap; &sub-dbg-g-chip-ident; &sub-dbg-g-register; + &sub-dqevent; &sub-encoder-cmd; &sub-enumaudio; &sub-enumaudioout; @@ -467,6 +469,7 @@ and discussions on the V4L mailing list. &sub-reqbufs; &sub-s-hw-freq-seek; &sub-streamon; + &sub-subscribe-event; &sub-mmap; &sub-munmap; diff --git a/Documentation/DocBook/v4l/vidioc-dqevent.xml b/Documentation/DocBook/v4l/vidioc-dqevent.xml new file mode 100644 index 00000000000..eb45c1695d8 --- /dev/null +++ b/Documentation/DocBook/v4l/vidioc-dqevent.xml @@ -0,0 +1,124 @@ + + + ioctl VIDIOC_DQEVENT + &manvol; + + + + VIDIOC_DQEVENT + Dequeue event + + + + + + int ioctl + int fd + int request + struct v4l2_event +*argp + + + + + + Arguments + + + + fd + + &fd; + + + + request + + VIDIOC_DQEVENT + + + + argp + + + + + + + + + Description + + Dequeue an event from a video device. No input is required + for this ioctl. All the fields of the &v4l2-event; structure are + filled by the driver. The file handle will also receive exceptions + which the application may get by e.g. using the select system + call. + + + struct <structname>v4l2_event</structname> + + &cs-str; + + + __u32 + type + + Type of the event. + + + union + u + + + + + + __u8 + data[64] + Event data. Defined by the event type. The union + should be used to define easily accessible type for + events. + + + __u32 + pending + + Number of pending events excluding this one. + + + __u32 + sequence + + Event sequence number. The sequence number is + incremented for every subscribed event that takes place. + If sequence numbers are not contiguous it means that + events have been lost. + + + + struct timeval + timestamp + + Event timestamp. + + + __u32 + reserved[9] + + Reserved for future extensions. Drivers must set + the array to zero. + + + +
+ + + + diff --git a/Documentation/DocBook/v4l/vidioc-subscribe-event.xml b/Documentation/DocBook/v4l/vidioc-subscribe-event.xml new file mode 100644 index 00000000000..71ab88cb76b --- /dev/null +++ b/Documentation/DocBook/v4l/vidioc-subscribe-event.xml @@ -0,0 +1,104 @@ + + + ioctl VIDIOC_SUBSCRIBE_EVENT, VIDIOC_UNSUBSCRIBE_EVENT + &manvol; + + + + VIDIOC_SUBSCRIBE_EVENT, VIDIOC_UNSUBSCRIBE_EVENT + Subscribe or unsubscribe event + + + + + + int ioctl + int fd + int request + struct v4l2_event_subscription +*argp + + + + + + Arguments + + + + fd + + &fd; + + + + request + + VIDIOC_SUBSCRIBE_EVENT, VIDIOC_UNSUBSCRIBE_EVENT + + + + argp + + + + + + + + + Description + + Subscribe or unsubscribe V4L2 event. Subscribed events are + dequeued by using the &VIDIOC-DQEVENT; ioctl. + + + struct <structname>v4l2_event_subscription</structname> + + &cs-str; + + + __u32 + type + Type of the event. + + + __u32 + reserved[7] + Reserved for future extensions. Drivers and applications + must set the array to zero. + + + +
+ + + Event Types + + &cs-def; + + + V4L2_EVENT_ALL + 0 + All events. V4L2_EVENT_ALL is valid only for + VIDIOC_UNSUBSCRIBE_EVENT for unsubscribing all events at once. + + + + V4L2_EVENT_PRIVATE_START + 0x08000000 + Base event number for driver-private events. + + + +
+ + + + diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt index 48f0adfbc98..e831aaca66f 100644 --- a/Documentation/video4linux/v4l2-framework.txt +++ b/Documentation/video4linux/v4l2-framework.txt @@ -680,3 +680,63 @@ int my_release(struct file *file) ... } + +V4L2 events +----------- + +The V4L2 events provide a generic way to pass events to user space. +The driver must use v4l2_fh to be able to support V4L2 events. + +Useful functions: + +- v4l2_event_alloc() + + To use events, the driver must allocate events for the file handle. By + calling the function more than once, the driver may assure that at least n + events in total have been allocated. The function may not be called in + atomic context. + +- v4l2_event_queue() + + Queue events to video device. The driver's only responsibility is to fill + in the type and the data fields. The other fields will be filled in by + V4L2. + +- v4l2_event_subscribe() + + The video_device->ioctl_ops->vidioc_subscribe_event must check the driver + is able to produce events with specified event id. Then it calls + v4l2_event_subscribe() to subscribe the event. + +- v4l2_event_unsubscribe() + + vidioc_unsubscribe_event in struct v4l2_ioctl_ops. A driver may use + v4l2_event_unsubscribe() directly unless it wants to be involved in + unsubscription process. + + The special type V4L2_EVENT_ALL may be used to unsubscribe all events. The + drivers may want to handle this in a special way. + +- v4l2_event_pending() + + Returns the number of pending events. Useful when implementing poll. + +Drivers do not initialise events directly. The events are initialised +through v4l2_fh_init() if video_device->ioctl_ops->vidioc_subscribe_event is +non-NULL. This *MUST* be performed in the driver's +v4l2_file_operations->open() handler. + +Events are delivered to user space through the poll system call. The driver +can use v4l2_fh->events->wait wait_queue_head_t as the argument for +poll_wait(). + +There are standard and private events. New standard events must use the +smallest available event type. The drivers must allocate their events from +their own class starting from class base. Class base is +V4L2_EVENT_PRIVATE_START + n * 1000 where n is the lowest available number. +The first event type in the class is reserved for future use, so the first +available event type is 'class base + 1'. + +An example on how the V4L2 events may be used can be found in the OMAP +3 ISP driver available at as of +writing this. -- cgit v1.2.3-70-g09d2 From 37089368c1b1bea3c71217163e6d5d3b01ef1f19 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 27 Mar 2010 14:10:37 -0300 Subject: V4L/DVB: v4l spec: document what odd and even fields are Document that odd == top and even == bottom. I can never remember this, so it is probably worth documenting. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/v4l/io.xml | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'Documentation') diff --git a/Documentation/DocBook/v4l/io.xml b/Documentation/DocBook/v4l/io.xml index e870330cbf7..bb685ed6fe7 100644 --- a/Documentation/DocBook/v4l/io.xml +++ b/Documentation/DocBook/v4l/io.xml @@ -918,8 +918,8 @@ order. When the driver provides or accepts images field by field rather than interleaved, it is also important applications understand -how the fields combine to frames. We distinguish between top and -bottom fields, the spatial order: The first line +how the fields combine to frames. We distinguish between top (aka odd) and +bottom (aka even) fields, the spatial order: The first line of the top field is the first line of an interlaced frame, the first line of the bottom field is the second line of that frame. @@ -972,12 +972,12 @@ between V4L2_FIELD_TOP and V4L2_FIELD_TOP 2 - Images consist of the top field only. + Images consist of the top (aka odd) field only. V4L2_FIELD_BOTTOM 3 - Images consist of the bottom field only. + Images consist of the bottom (aka even) field only. Applications may wish to prevent a device from capturing interlaced images because they will have "comb" or "feathering" artefacts around moving objects. -- cgit v1.2.3-70-g09d2 From 0e1de38db83606d802cf2b3e00cf95fc693b8ca2 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 27 Mar 2010 14:10:57 -0300 Subject: V4L/DVB: v4l spec: document new events Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media-entities.tmpl | 2 ++ Documentation/DocBook/v4l/vidioc-dqevent.xml | 9 ++++++- .../DocBook/v4l/vidioc-subscribe-event.xml | 29 ++++++++++++++++++++++ 3 files changed, 39 insertions(+), 1 deletion(-) (limited to 'Documentation') diff --git a/Documentation/DocBook/media-entities.tmpl b/Documentation/DocBook/media-entities.tmpl index 770be3c3ba7..5d4d40f429a 100644 --- a/Documentation/DocBook/media-entities.tmpl +++ b/Documentation/DocBook/media-entities.tmpl @@ -85,6 +85,7 @@ VIDIOC_TRY_ENCODER_CMD"> VIDIOC_TRY_EXT_CTRLS"> VIDIOC_TRY_FMT"> +VIDIOC_UNSUBSCRIBE_EVENT"> v4l2_std_id"> @@ -145,6 +146,7 @@ v4l2_encoder_cmd"> v4l2_event"> v4l2_event_subscription"> +v4l2_event_vsync"> v4l2_ext_control"> v4l2_ext_controls"> v4l2_fmtdesc"> diff --git a/Documentation/DocBook/v4l/vidioc-dqevent.xml b/Documentation/DocBook/v4l/vidioc-dqevent.xml index eb45c1695d8..4e0a7cc3081 100644 --- a/Documentation/DocBook/v4l/vidioc-dqevent.xml +++ b/Documentation/DocBook/v4l/vidioc-dqevent.xml @@ -72,6 +72,13 @@ + + + &v4l2-event-vsync; + vsync + Event data for event V4L2_EVENT_VSYNC. + + __u8 @@ -97,7 +104,7 @@ - struct timeval + struct timespec timestamp Event timestamp. diff --git a/Documentation/DocBook/v4l/vidioc-subscribe-event.xml b/Documentation/DocBook/v4l/vidioc-subscribe-event.xml index 71ab88cb76b..8b501791aa6 100644 --- a/Documentation/DocBook/v4l/vidioc-subscribe-event.xml +++ b/Documentation/DocBook/v4l/vidioc-subscribe-event.xml @@ -84,6 +84,21 @@ VIDIOC_UNSUBSCRIBE_EVENT for unsubscribing all events at once. + + V4L2_EVENT_VSYNC + 1 + This event is triggered on the vertical sync. + This event has &v4l2-event-vsync; associated with it. + + + + V4L2_EVENT_EOS + 2 + This event is triggered when the end of a stream is reached. + This is typically used with MPEG decoders to report to the application + when the last of the MPEG stream has been decoded. + + V4L2_EVENT_PRIVATE_START 0x08000000 @@ -93,6 +108,20 @@ + + struct <structname>v4l2_event_vsync</structname> + + &cs-str; + + + __u8 + field + The upcoming field. See &v4l2-field;. + + + +
+