diff options
Diffstat (limited to 'Documentation')
320 files changed, 12173 insertions, 6879 deletions
diff --git a/Documentation/00-INDEX b/Documentation/00-INDEX index 1f89424c36a..65bbd262239 100644 --- a/Documentation/00-INDEX +++ b/Documentation/00-INDEX @@ -272,6 +272,8 @@ printk-formats.txt - how to get printk format specifiers right prio_tree.txt - info on radix-priority-search-tree use for indexing vmas. +ramoops.txt + - documentation of the ramoops oops/panic logging module. rbtree.txt - info on what red-black trees are and what they are for. robust-futex-ABI.txt diff --git a/Documentation/ABI/obsolete/proc-pid-oom_adj b/Documentation/ABI/obsolete/proc-pid-oom_adj index cf63f264ce0..9a3cb88ade4 100644 --- a/Documentation/ABI/obsolete/proc-pid-oom_adj +++ b/Documentation/ABI/obsolete/proc-pid-oom_adj @@ -14,7 +14,7 @@ Why: /proc/<pid>/oom_adj allows userspace to influence the oom killer's A much more powerful interface, /proc/<pid>/oom_score_adj, was introduced with the oom killer rewrite that allows users to increase or - decrease the badness() score linearly. This interface will replace + decrease the badness score linearly. This interface will replace /proc/<pid>/oom_adj. A warning will be emitted to the kernel log if an application uses this diff --git a/Documentation/ABI/testing/pstore b/Documentation/ABI/testing/pstore index ddf451ee2a0..ff1df4e3b05 100644 --- a/Documentation/ABI/testing/pstore +++ b/Documentation/ABI/testing/pstore @@ -39,3 +39,9 @@ Description: Generic interface to platform dependent persistent storage. multiple) files based on the record size of the underlying persistent storage until at least this amount is reached. Default is 10 Kbytes. + + Pstore only supports one backend at a time. If multiple + backends are available, the preferred backend may be + set by passing the pstore.backend= argument to the kernel at + boot time. + diff --git a/Documentation/ABI/testing/sysfs-bus-i2c-devices-fsa9480 b/Documentation/ABI/testing/sysfs-bus-i2c-devices-fsa9480 new file mode 100644 index 00000000000..9de269bb0ae --- /dev/null +++ b/Documentation/ABI/testing/sysfs-bus-i2c-devices-fsa9480 @@ -0,0 +1,21 @@ +What: /sys/bus/i2c/devices/.../device +Date: February 2011 +Contact: Minkyu Kang <mk7.kang@samsung.com> +Description: + show what device is attached + NONE - no device + USB - USB device is attached + UART - UART is attached + CHARGER - Charger is attaced + JIG - JIG is attached + +What: /sys/bus/i2c/devices/.../switch +Date: February 2011 +Contact: Minkyu Kang <mk7.kang@samsung.com> +Description: + show or set the state of manual switch + VAUDIO - switch to VAUDIO path + UART - switch to UART path + AUDIO - switch to AUDIO path + DHOST - switch to DHOST path + AUTO - switch automatically by device diff --git a/Documentation/ABI/testing/sysfs-class-scsi_host b/Documentation/ABI/testing/sysfs-class-scsi_host new file mode 100644 index 00000000000..29a4f892e43 --- /dev/null +++ b/Documentation/ABI/testing/sysfs-class-scsi_host @@ -0,0 +1,13 @@ +What: /sys/class/scsi_host/hostX/isci_id +Date: June 2011 +Contact: Dave Jiang <dave.jiang@intel.com> +Description: + This file contains the enumerated host ID for the Intel + SCU controller. The Intel(R) C600 Series Chipset SATA/SAS + Storage Control Unit embeds up to two 4-port controllers in + a single PCI device. The controllers are enumerated in order + which usually means the lowest number scsi_host corresponds + with the first controller, but this association is not + guaranteed. The 'isci_id' attribute unambiguously identifies + the controller index: '0' for the first controller, + '1' for the second. diff --git a/Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff b/Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff new file mode 100644 index 00000000000..9aec8ef228b --- /dev/null +++ b/Documentation/ABI/testing/sysfs-driver-hid-logitech-lg4ff @@ -0,0 +1,7 @@ +What: /sys/module/hid_logitech/drivers/hid:logitech/<dev>/range. +Date: July 2011 +KernelVersion: 3.2 +Contact: Michal Mal <madcatxster@gmail.com> +Description: Display minimum, maximum and current range of the steering + wheel. Writing a value within min and max boundaries sets the + range of the wheel. diff --git a/Documentation/ABI/testing/sysfs-module b/Documentation/ABI/testing/sysfs-module index cfcec3bffc0..9489ea8e294 100644 --- a/Documentation/ABI/testing/sysfs-module +++ b/Documentation/ABI/testing/sysfs-module @@ -10,3 +10,26 @@ KernelVersion: 2.6.35 Contact: masa-korg@dsn.okisemi.com Description: Write/read Option ROM data. + +What: /sys/module/ehci_hcd/drivers/.../uframe_periodic_max +Date: July 2011 +KernelVersion: 3.1 +Contact: Kirill Smelkov <kirr@mns.spb.ru> +Description: Maximum time allowed for periodic transfers per microframe (μs) + + [ USB 2.0 sets maximum allowed time for periodic transfers per + microframe to be 80%, that is 100 microseconds out of 125 + microseconds (full microframe). + + However there are cases, when 80% max isochronous bandwidth is + too limiting. For example two video streams could require 110 + microseconds of isochronous bandwidth per microframe to work + together. ] + + Through this setting it is possible to raise the limit so that + the host controller would allow allocating more than 100 + microseconds of periodic bandwidth per microframe. + + Beware, non-standard modes are usually not thoroughly tested by + hardware designers, and the hardware can malfunction when this + setting differ from default 100. diff --git a/Documentation/ABI/testing/sysfs-platform-ideapad-laptop b/Documentation/ABI/testing/sysfs-platform-ideapad-laptop index 807fca2ae2a..ff53183c384 100644 --- a/Documentation/ABI/testing/sysfs-platform-ideapad-laptop +++ b/Documentation/ABI/testing/sysfs-platform-ideapad-laptop @@ -4,3 +4,20 @@ KernelVersion: 2.6.37 Contact: "Ike Panhc <ike.pan@canonical.com>" Description: Control the power of camera module. 1 means on, 0 means off. + +What: /sys/devices/platform/ideapad/cfg +Date: Jun 2011 +KernelVersion: 3.1 +Contact: "Ike Panhc <ike.pan@canonical.com>" +Description: + Ideapad capability bits. + Bit 8-10: 1 - Intel graphic only + 2 - ATI graphic only + 3 - Nvidia graphic only + 4 - Intel and ATI graphic + 5 - Intel and Nvidia graphic + Bit 16: Bluetooth exist (1 for exist) + Bit 17: 3G exist (1 for exist) + Bit 18: Wifi exist (1 for exist) + Bit 19: Camera exist (1 for exist) + diff --git a/Documentation/CodingStyle b/Documentation/CodingStyle index fa6e25b94a5..c940239d967 100644 --- a/Documentation/CodingStyle +++ b/Documentation/CodingStyle @@ -80,22 +80,13 @@ available tools. The limit on the length of lines is 80 columns and this is a strongly preferred limit. -Statements longer than 80 columns will be broken into sensible chunks. -Descendants are always substantially shorter than the parent and are placed -substantially to the right. The same applies to function headers with a long -argument list. Long strings are as well broken into shorter strings. The -only exception to this is where exceeding 80 columns significantly increases -readability and does not hide information. - -void fun(int a, int b, int c) -{ - if (condition) - printk(KERN_WARNING "Warning this is a long printk with " - "3 parameters a: %u b: %u " - "c: %u \n", a, b, c); - else - next_statement; -} +Statements longer than 80 columns will be broken into sensible chunks, unless +exceeding 80 columns significantly increases readability and does not hide +information. Descendants are always substantially shorter than the parent and +are placed substantially to the right. The same applies to function headers +with a long argument list. However, never break user-visible strings such as +printk messages, because that breaks the ability to grep for them. + Chapter 3: Placing Braces and Spaces diff --git a/Documentation/DMA-API-HOWTO.txt b/Documentation/DMA-API-HOWTO.txt index d568bc235bc..a0b6250add7 100644 --- a/Documentation/DMA-API-HOWTO.txt +++ b/Documentation/DMA-API-HOWTO.txt @@ -613,13 +613,13 @@ to use the dma_sync_*() interfaces. pass_to_upper_layers(cp->rx_buf); make_and_setup_new_rx_buf(cp); } else { - /* Just sync the buffer and give it back - * to the card. + /* CPU should not write to + * DMA_FROM_DEVICE-mapped area, + * so dma_sync_single_for_device() is + * not needed here. It would be required + * for DMA_BIDIRECTIONAL mapping if + * the memory was modified. */ - dma_sync_single_for_device(&cp->dev, - cp->rx_dma, - cp->rx_len, - DMA_FROM_DEVICE); give_rx_buf_to_card(cp); } } diff --git a/Documentation/DocBook/.gitignore b/Documentation/DocBook/.gitignore index 679034cbd68..720f245ceb1 100644 --- a/Documentation/DocBook/.gitignore +++ b/Documentation/DocBook/.gitignore @@ -8,4 +8,7 @@ *.dvi *.log *.out -media/ +*.png +*.gif +media-indices.tmpl +media-entities.tmpl diff --git a/Documentation/DocBook/Makefile b/Documentation/DocBook/Makefile index 3cebfa0d161..66725a3d30d 100644 --- a/Documentation/DocBook/Makefile +++ b/Documentation/DocBook/Makefile @@ -14,7 +14,9 @@ DOCBOOKS := z8530book.xml mcabook.xml device-drivers.xml \ genericirq.xml s390-drivers.xml uio-howto.xml scsi.xml \ 80211.xml debugobjects.xml sh.xml regulator.xml \ alsa-driver-api.xml writing-an-alsa-driver.xml \ - tracepoint.xml media.xml drm.xml + tracepoint.xml drm.xml media_api.xml + +include $(srctree)/Documentation/DocBook/media/Makefile ### # The build process is as follows (targets): @@ -32,7 +34,7 @@ PS_METHOD = $(prefer-db2x) ### # The targets that may be used. -PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs xmldoclinks +PHONY += xmldocs sgmldocs psdocs pdfdocs htmldocs mandocs installmandocs cleandocs BOOKS := $(addprefix $(obj)/,$(DOCBOOKS)) xmldocs: $(BOOKS) @@ -45,27 +47,14 @@ PDF := $(patsubst %.xml, %.pdf, $(BOOKS)) pdfdocs: $(PDF) HTML := $(sort $(patsubst %.xml, %.html, $(BOOKS))) -htmldocs: $(HTML) xmldoclinks +htmldocs: $(HTML) $(call build_main_index) $(call build_images) + $(call install_media_images) MAN := $(patsubst %.xml, %.9, $(BOOKS)) mandocs: $(MAN) -build_images = mkdir -p $(objtree)/Documentation/DocBook/media/ && \ - cp $(srctree)/Documentation/DocBook/dvb/*.png \ - $(srctree)/Documentation/DocBook/v4l/*.gif \ - $(objtree)/Documentation/DocBook/media/ - -xmldoclinks: -ifneq ($(objtree),$(srctree)) - for dep in dvb media-entities.tmpl media-indices.tmpl v4l; do \ - rm -f $(objtree)/Documentation/DocBook/$$dep \ - && ln -s $(srctree)/Documentation/DocBook/$$dep $(objtree)/Documentation/DocBook/ \ - || exit; \ - done -endif - installmandocs: mandocs mkdir -p /usr/local/man/man9/ install Documentation/DocBook/man/*.9.gz /usr/local/man/man9/ @@ -97,11 +86,11 @@ define rule_docproc ) > $(dir $@).$(notdir $@).cmd endef -%.xml: %.tmpl xmldoclinks FORCE +%.xml: %.tmpl FORCE $(call if_changed_rule,docproc) ### -#Read in all saved dependency files +#Read in all saved dependency files cmd_files := $(wildcard $(foreach f,$(BOOKS),$(dir $(f)).$(notdir $(f)).cmd)) ifneq ($(cmd_files),) @@ -150,7 +139,7 @@ quiet_cmd_db2pdf = PDF $@ index = index.html main_idx = Documentation/DocBook/$(index) -build_main_index = rm -rf $(main_idx) && \ +build_main_index = rm -rf $(main_idx); \ echo '<h1>Linux Kernel HTML Documentation</h1>' >> $(main_idx) && \ echo '<h2>Kernel Version: $(KERNELVERSION)</h2>' >> $(main_idx) && \ cat $(HTML) >> $(main_idx) @@ -242,7 +231,7 @@ clean-files := $(DOCBOOKS) \ clean-dirs := $(patsubst %.xml,%,$(DOCBOOKS)) man -cleandocs: +cleandocs: cleanmediadocs $(Q)rm -f $(call objectify, $(clean-files)) $(Q)rm -rf $(call objectify, $(clean-dirs)) diff --git a/Documentation/DocBook/dvb/dvbproperty.xml b/Documentation/DocBook/dvb/dvbproperty.xml deleted file mode 100644 index b5365f61d69..00000000000 --- a/Documentation/DocBook/dvb/dvbproperty.xml +++ /dev/null @@ -1,590 +0,0 @@ -<section id="FE_GET_SET_PROPERTY"> -<title>FE_GET_PROPERTY/FE_SET_PROPERTY</title> - -<programlisting> -/* Reserved fields should be set to 0 */ -struct dtv_property { - __u32 cmd; - union { - __u32 data; - struct { - __u8 data[32]; - __u32 len; - __u32 reserved1[3]; - void *reserved2; - } buffer; - } u; - int result; -} __attribute__ ((packed)); - -/* num of properties cannot exceed DTV_IOCTL_MAX_MSGS per ioctl */ -#define DTV_IOCTL_MAX_MSGS 64 - -struct dtv_properties { - __u32 num; - struct dtv_property *props; -}; -</programlisting> - -<section id="FE_GET_PROPERTY"> -<title>FE_GET_PROPERTY</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call returns one or more frontend properties. This call only - requires read-only access to the device.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>, - dtv_properties ⋆props);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int num</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link> for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>struct dtv_property *props</para> -</entry><entry - align="char"> -<para>Points to the location where the front-end property commands are stored.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>ERRORS</para> -<informaltable><tgroup cols="2"><tbody><row> - <entry align="char"><para>EINVAL</para></entry> - <entry align="char"><para>Invalid parameter(s) received or number of parameters out of the range.</para></entry> - </row><row> - <entry align="char"><para>ENOMEM</para></entry> - <entry align="char"><para>Out of memory.</para></entry> - </row><row> - <entry align="char"><para>EFAULT</para></entry> - <entry align="char"><para>Failure while copying data from/to userspace.</para></entry> - </row><row> - <entry align="char"><para>EOPNOTSUPP</para></entry> - <entry align="char"><para>Property type not supported.</para></entry> - </row></tbody></tgroup></informaltable> -</section> - -<section id="FE_SET_PROPERTY"> -<title>FE_SET_PROPERTY</title> -<para>DESCRIPTION -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>This ioctl call sets one or more frontend properties. This call only - requires read-only access to the device.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>SYNOPSIS -</para> -<informaltable><tgroup cols="1"><tbody><row><entry - align="char"> -<para>int ioctl(int fd, int request = <link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>, - dtv_properties ⋆props);</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>PARAMETERS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>int fd</para> -</entry><entry - align="char"> -<para>File descriptor returned by a previous call to open().</para> -</entry> - </row><row><entry - align="char"> -<para>int num</para> -</entry><entry - align="char"> -<para>Equals <link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link> for this command.</para> -</entry> - </row><row><entry - align="char"> -<para>struct dtv_property *props</para> -</entry><entry - align="char"> -<para>Points to the location where the front-end property commands are stored.</para> -</entry> - </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row> - <entry align="char"><para>EINVAL</para></entry> - <entry align="char"><para>Invalid parameter(s) received or number of parameters out of the range.</para></entry> - </row><row> - <entry align="char"><para>ENOMEM</para></entry> - <entry align="char"><para>Out of memory.</para></entry> - </row><row> - <entry align="char"><para>EFAULT</para></entry> - <entry align="char"><para>Failure while copying data from/to userspace.</para></entry> - </row><row> - <entry align="char"><para>EOPNOTSUPP</para></entry> - <entry align="char"><para>Property type not supported.</para></entry> - </row></tbody></tgroup></informaltable> -</section> - -<section> - <title>Property types</title> -<para> -On <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>/<link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>, -the actual action is determined by the dtv_property cmd/data pairs. With one single ioctl, is possible to -get/set up to 64 properties. The actual meaning of each property is described on the next sections. -</para> - -<para>The available frontend property types are:</para> -<programlisting> -#define DTV_UNDEFINED 0 -#define DTV_TUNE 1 -#define DTV_CLEAR 2 -#define DTV_FREQUENCY 3 -#define DTV_MODULATION 4 -#define DTV_BANDWIDTH_HZ 5 -#define DTV_INVERSION 6 -#define DTV_DISEQC_MASTER 7 -#define DTV_SYMBOL_RATE 8 -#define DTV_INNER_FEC 9 -#define DTV_VOLTAGE 10 -#define DTV_TONE 11 -#define DTV_PILOT 12 -#define DTV_ROLLOFF 13 -#define DTV_DISEQC_SLAVE_REPLY 14 -#define DTV_FE_CAPABILITY_COUNT 15 -#define DTV_FE_CAPABILITY 16 -#define DTV_DELIVERY_SYSTEM 17 -#define DTV_ISDBT_PARTIAL_RECEPTION 18 -#define DTV_ISDBT_SOUND_BROADCASTING 19 -#define DTV_ISDBT_SB_SUBCHANNEL_ID 20 -#define DTV_ISDBT_SB_SEGMENT_IDX 21 -#define DTV_ISDBT_SB_SEGMENT_COUNT 22 -#define DTV_ISDBT_LAYERA_FEC 23 -#define DTV_ISDBT_LAYERA_MODULATION 24 -#define DTV_ISDBT_LAYERA_SEGMENT_COUNT 25 -#define DTV_ISDBT_LAYERA_TIME_INTERLEAVING 26 -#define DTV_ISDBT_LAYERB_FEC 27 -#define DTV_ISDBT_LAYERB_MODULATION 28 -#define DTV_ISDBT_LAYERB_SEGMENT_COUNT 29 -#define DTV_ISDBT_LAYERB_TIME_INTERLEAVING 30 -#define DTV_ISDBT_LAYERC_FEC 31 -#define DTV_ISDBT_LAYERC_MODULATION 32 -#define DTV_ISDBT_LAYERC_SEGMENT_COUNT 33 -#define DTV_ISDBT_LAYERC_TIME_INTERLEAVING 34 -#define DTV_API_VERSION 35 -#define DTV_CODE_RATE_HP 36 -#define DTV_CODE_RATE_LP 37 -#define DTV_GUARD_INTERVAL 38 -#define DTV_TRANSMISSION_MODE 39 -#define DTV_HIERARCHY 40 -#define DTV_ISDBT_LAYER_ENABLED 41 -#define DTV_ISDBS_TS_ID 42 -</programlisting> -</section> - -<section id="fe_property_common"> - <title>Parameters that are common to all Digital TV standards</title> - <section id="DTV_FREQUENCY"> - <title><constant>DTV_FREQUENCY</constant></title> - - <para>Central frequency of the channel, in HZ.</para> - - <para>Notes:</para> - <para>1)For ISDB-T, the channels are usually transmitted with an offset of 143kHz. - E.g. a valid frequncy could be 474143 kHz. The stepping is bound to the bandwidth of - the channel which is 6MHz.</para> - - <para>2)As in ISDB-Tsb the channel consists of only one or three segments the - frequency step is 429kHz, 3*429 respectively. As for ISDB-T the - central frequency of the channel is expected.</para> - </section> - - <section id="DTV_BANDWIDTH_HZ"> - <title><constant>DTV_BANDWIDTH_HZ</constant></title> - - <para>Bandwidth for the channel, in HZ.</para> - - <para>Possible values: - <constant>1712000</constant>, - <constant>5000000</constant>, - <constant>6000000</constant>, - <constant>7000000</constant>, - <constant>8000000</constant>, - <constant>10000000</constant>. - </para> - - <para>Notes:</para> - - <para>1) For ISDB-T it should be always 6000000Hz (6MHz)</para> - <para>2) For ISDB-Tsb it can vary depending on the number of connected segments</para> - <para>3) Bandwidth doesn't apply for DVB-C transmissions, as the bandwidth - for DVB-C depends on the symbol rate</para> - <para>4) Bandwidth in ISDB-T is fixed (6MHz) or can be easily derived from - other parameters (DTV_ISDBT_SB_SEGMENT_IDX, - DTV_ISDBT_SB_SEGMENT_COUNT).</para> - <para>5) DVB-T supports 6, 7 and 8MHz.</para> - <para>6) In addition, DVB-T2 supports 1.172, 5 and 10MHz.</para> - </section> - - <section id="DTV_DELIVERY_SYSTEM"> - <title><constant>DTV_DELIVERY_SYSTEM</constant></title> - - <para>Specifies the type of Delivery system</para> - - <para>Possible values: </para> -<programlisting> -typedef enum fe_delivery_system { - SYS_UNDEFINED, - SYS_DVBC_ANNEX_AC, - SYS_DVBC_ANNEX_B, - SYS_DVBT, - SYS_DSS, - SYS_DVBS, - SYS_DVBS2, - SYS_DVBH, - SYS_ISDBT, - SYS_ISDBS, - SYS_ISDBC, - SYS_ATSC, - SYS_ATSCMH, - SYS_DMBTH, - SYS_CMMB, - SYS_DAB, - SYS_DVBT2, -} fe_delivery_system_t; -</programlisting> - - </section> - - <section id="DTV_TRANSMISSION_MODE"> - <title><constant>DTV_TRANSMISSION_MODE</constant></title> - - <para>Specifies the number of carriers used by the standard</para> - - <para>Possible values are:</para> -<programlisting> -typedef enum fe_transmit_mode { - TRANSMISSION_MODE_2K, - TRANSMISSION_MODE_8K, - TRANSMISSION_MODE_AUTO, - TRANSMISSION_MODE_4K, - TRANSMISSION_MODE_1K, - TRANSMISSION_MODE_16K, - TRANSMISSION_MODE_32K, -} fe_transmit_mode_t; -</programlisting> - - <para>Notes:</para> - <para>1) ISDB-T supports three carrier/symbol-size: 8K, 4K, 2K. It is called - 'mode' in the standard: Mode 1 is 2K, mode 2 is 4K, mode 3 is 8K</para> - - <para>2) If <constant>DTV_TRANSMISSION_MODE</constant> is set the <constant>TRANSMISSION_MODE_AUTO</constant> the - hardware will try to find the correct FFT-size (if capable) and will - use TMCC to fill in the missing parameters.</para> - <para>3) DVB-T specifies 2K and 8K as valid sizes.</para> - <para>4) DVB-T2 specifies 1K, 2K, 4K, 8K, 16K and 32K.</para> - </section> - - <section id="DTV_GUARD_INTERVAL"> - <title><constant>DTV_GUARD_INTERVAL</constant></title> - - <para>Possible values are:</para> -<programlisting> -typedef enum fe_guard_interval { - GUARD_INTERVAL_1_32, - GUARD_INTERVAL_1_16, - GUARD_INTERVAL_1_8, - GUARD_INTERVAL_1_4, - GUARD_INTERVAL_AUTO, - GUARD_INTERVAL_1_128, - GUARD_INTERVAL_19_128, - GUARD_INTERVAL_19_256, -} fe_guard_interval_t; -</programlisting> - - <para>Notes:</para> - <para>1) If <constant>DTV_GUARD_INTERVAL</constant> is set the <constant>GUARD_INTERVAL_AUTO</constant> the hardware will - try to find the correct guard interval (if capable) and will use TMCC to fill - in the missing parameters.</para> - <para>2) Intervals 1/128, 19/128 and 19/256 are used only for DVB-T2 at present</para> - </section> -</section> - -<section id="isdbt"> - <title>ISDB-T frontend</title> - <para>This section describes shortly what are the possible parameters in the Linux - DVB-API called "S2API" and now DVB API 5 in order to tune an ISDB-T/ISDB-Tsb - demodulator:</para> - - <para>This ISDB-T/ISDB-Tsb API extension should reflect all information - needed to tune any ISDB-T/ISDB-Tsb hardware. Of course it is possible - that some very sophisticated devices won't need certain parameters to - tune.</para> - - <para>The information given here should help application writers to know how - to handle ISDB-T and ISDB-Tsb hardware using the Linux DVB-API.</para> - - <para>The details given here about ISDB-T and ISDB-Tsb are just enough to - basically show the dependencies between the needed parameter values, - but surely some information is left out. For more detailed information - see the following documents:</para> - - <para>ARIB STD-B31 - "Transmission System for Digital Terrestrial - Television Broadcasting" and</para> - <para>ARIB TR-B14 - "Operational Guidelines for Digital Terrestrial - Television Broadcasting".</para> - - <para>In order to read this document one has to have some knowledge the - channel structure in ISDB-T and ISDB-Tsb. I.e. it has to be known to - the reader that an ISDB-T channel consists of 13 segments, that it can - have up to 3 layer sharing those segments, and things like that.</para> - - <para>Parameters used by ISDB-T and ISDB-Tsb.</para> - - <section id="isdbt-new-parms"> - <title>ISDB-T only parameters</title> - - <section id="isdbt-part-rec"> - <title><constant>DTV_ISDBT_PARTIAL_RECEPTION</constant></title> - - <para><constant>If DTV_ISDBT_SOUND_BROADCASTING</constant> is '0' this bit-field represents whether - the channel is in partial reception mode or not.</para> - - <para>If '1' <constant>DTV_ISDBT_LAYERA_*</constant> values are assigned to the center segment and - <constant>DTV_ISDBT_LAYERA_SEGMENT_COUNT</constant> has to be '1'.</para> - - <para>If in addition <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1' - <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant> represents whether this ISDB-Tsb channel - is consisting of one segment and layer or three segments and two layers.</para> - - <para>Possible values: 0, 1, -1 (AUTO)</para> - </section> - - <section id="isdbt-sound-bcast"> - <title><constant>DTV_ISDBT_SOUND_BROADCASTING</constant></title> - - <para>This field represents whether the other DTV_ISDBT_*-parameters are - referring to an ISDB-T and an ISDB-Tsb channel. (See also - <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant>).</para> - - <para>Possible values: 0, 1, -1 (AUTO)</para> - </section> - - <section id="isdbt-sb-ch-id"> - <title><constant>DTV_ISDBT_SB_SUBCHANNEL_ID</constant></title> - - <para>This field only applies if <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1'.</para> - - <para>(Note of the author: This might not be the correct description of the - <constant>SUBCHANNEL-ID</constant> in all details, but it is my understanding of the technical - background needed to program a device)</para> - - <para>An ISDB-Tsb channel (1 or 3 segments) can be broadcasted alone or in a - set of connected ISDB-Tsb channels. In this set of channels every - channel can be received independently. The number of connected - ISDB-Tsb segment can vary, e.g. depending on the frequency spectrum - bandwidth available.</para> - - <para>Example: Assume 8 ISDB-Tsb connected segments are broadcasted. The - broadcaster has several possibilities to put those channels in the - air: Assuming a normal 13-segment ISDB-T spectrum he can align the 8 - segments from position 1-8 to 5-13 or anything in between.</para> - - <para>The underlying layer of segments are subchannels: each segment is - consisting of several subchannels with a predefined IDs. A sub-channel - is used to help the demodulator to synchronize on the channel.</para> - - <para>An ISDB-T channel is always centered over all sub-channels. As for - the example above, in ISDB-Tsb it is no longer as simple as that.</para> - - <para><constant>The DTV_ISDBT_SB_SUBCHANNEL_ID</constant> parameter is used to give the - sub-channel ID of the segment to be demodulated.</para> - - <para>Possible values: 0 .. 41, -1 (AUTO)</para> - </section> - - <section id="isdbt-sb-seg-idx"> - - <title><constant>DTV_ISDBT_SB_SEGMENT_IDX</constant></title> - - <para>This field only applies if <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1'.</para> - - <para><constant>DTV_ISDBT_SB_SEGMENT_IDX</constant> gives the index of the segment to be - demodulated for an ISDB-Tsb channel where several of them are - transmitted in the connected manner.</para> - - <para>Possible values: 0 .. <constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant> - 1</para> - - <para>Note: This value cannot be determined by an automatic channel search.</para> - </section> - - <section id="isdbt-sb-seg-cnt"> - <title><constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant></title> - - <para>This field only applies if <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1'.</para> - - <para><constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant> gives the total count of connected ISDB-Tsb - channels.</para> - - <para>Possible values: 1 .. 13</para> - - <para>Note: This value cannot be determined by an automatic channel search.</para> - </section> - - <section id="isdb-hierq-layers"> - <title>Hierarchical layers</title> - - <para>ISDB-T channels can be coded hierarchically. As opposed to DVB-T in - ISDB-T hierarchical layers can be decoded simultaneously. For that - reason a ISDB-T demodulator has 3 viterbi and 3 reed-solomon-decoders.</para> - - <para>ISDB-T has 3 hierarchical layers which each can use a part of the - available segments. The total number of segments over all layers has - to 13 in ISDB-T.</para> - - <section id="isdbt-layer-ena"> - <title><constant>DTV_ISDBT_LAYER_ENABLED</constant></title> - - <para>Hierarchical reception in ISDB-T is achieved by enabling or disabling - layers in the decoding process. Setting all bits of - <constant>DTV_ISDBT_LAYER_ENABLED</constant> to '1' forces all layers (if applicable) to be - demodulated. This is the default.</para> - - <para>If the channel is in the partial reception mode - (<constant>DTV_ISDBT_PARTIAL_RECEPTION</constant> = 1) the central segment can be decoded - independently of the other 12 segments. In that mode layer A has to - have a <constant>SEGMENT_COUNT</constant> of 1.</para> - - <para>In ISDB-Tsb only layer A is used, it can be 1 or 3 in ISDB-Tsb - according to <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant>. <constant>SEGMENT_COUNT</constant> must be filled - accordingly.</para> - - <para>Possible values: 0x1, 0x2, 0x4 (|-able)</para> - - <para><constant>DTV_ISDBT_LAYER_ENABLED[0:0]</constant> - layer A</para> - <para><constant>DTV_ISDBT_LAYER_ENABLED[1:1]</constant> - layer B</para> - <para><constant>DTV_ISDBT_LAYER_ENABLED[2:2]</constant> - layer C</para> - <para><constant>DTV_ISDBT_LAYER_ENABLED[31:3]</constant> unused</para> - </section> - - <section id="isdbt-layer-fec"> - <title><constant>DTV_ISDBT_LAYER*_FEC</constant></title> - - <para>Possible values: <constant>FEC_AUTO</constant>, <constant>FEC_1_2</constant>, <constant>FEC_2_3</constant>, <constant>FEC_3_4</constant>, <constant>FEC_5_6</constant>, <constant>FEC_7_8</constant></para> - </section> - - <section id="isdbt-layer-mod"> - <title><constant>DTV_ISDBT_LAYER*_MODULATION</constant></title> - - <para>Possible values: <constant>QAM_AUTO</constant>, QP<constant>SK, QAM_16</constant>, <constant>QAM_64</constant>, <constant>DQPSK</constant></para> - - <para>Note: If layer C is <constant>DQPSK</constant> layer B has to be <constant>DQPSK</constant>. If layer B is <constant>DQPSK</constant> - and <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant>=0 layer has to be <constant>DQPSK</constant>.</para> - </section> - - <section id="isdbt-layer-seg-cnt"> - <title><constant>DTV_ISDBT_LAYER*_SEGMENT_COUNT</constant></title> - - <para>Possible values: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, -1 (AUTO)</para> - - <para>Note: Truth table for <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> and - <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant> and <constant>LAYER</constant>*_SEGMENT_COUNT</para> - - <informaltable id="isdbt-layer_seg-cnt-table"> - <tgroup cols="6"> - - <tbody> - <row> - <entry>PR</entry> - <entry>SB</entry> - <entry>Layer A width</entry> - <entry>Layer B width</entry> - <entry>Layer C width</entry> - <entry>total width</entry> - </row> - - <row> - <entry>0</entry> - <entry>0</entry> - <entry>1 .. 13</entry> - <entry>1 .. 13</entry> - <entry>1 .. 13</entry> - <entry>13</entry> - </row> - - <row> - <entry>1</entry> - <entry>0</entry> - <entry>1</entry> - <entry>1 .. 13</entry> - <entry>1 .. 13</entry> - <entry>13</entry> - </row> - - <row> - <entry>0</entry> - <entry>1</entry> - <entry>1</entry> - <entry>0</entry> - <entry>0</entry> - <entry>1</entry> - </row> - - <row> - <entry>1</entry> - <entry>1</entry> - <entry>1</entry> - <entry>2</entry> - <entry>0</entry> - <entry>13</entry> - </row> - </tbody> - - </tgroup> - </informaltable> - - </section> - - <section id="isdbt_layer_t_interl"> - <title><constant>DTV_ISDBT_LAYER*_TIME_INTERLEAVING</constant></title> - - <para>Possible values: 0, 1, 2, 3, -1 (AUTO)</para> - - <para>Note: The real inter-leaver depth-names depend on the mode (fft-size); the values - here are referring to what can be found in the TMCC-structure - - independent of the mode.</para> - </section> - </section> - </section> - <section id="dvbt2-params"> - <title>DVB-T2 parameters</title> - - <para>This section covers parameters that apply only to the DVB-T2 delivery method. DVB-T2 - support is currently in the early stages development so expect this section to grow - and become more detailed with time.</para> - - <section id="dvbt2-plp-id"> - <title><constant>DTV_DVBT2_PLP_ID</constant></title> - - <para>DVB-T2 supports Physical Layer Pipes (PLP) to allow transmission of - many data types via a single multiplex. The API will soon support this - at which point this section will be expanded.</para> - </section> - </section> -</section> -</section> diff --git a/Documentation/DocBook/dvb/dvbstb.png b/Documentation/DocBook/dvb/dvbstb.png Binary files differdeleted file mode 100644 index 9b8f372e7af..00000000000 --- a/Documentation/DocBook/dvb/dvbstb.png +++ /dev/null diff --git a/Documentation/DocBook/dvb/frontend.h.xml b/Documentation/DocBook/dvb/frontend.h.xml deleted file mode 100644 index d792f789ad3..00000000000 --- a/Documentation/DocBook/dvb/frontend.h.xml +++ /dev/null @@ -1,428 +0,0 @@ -<programlisting> -/* - * frontend.h - * - * Copyright (C) 2000 Marcus Metzler <marcus@convergence.de> - * Ralph Metzler <ralph@convergence.de> - * Holger Waechtler <holger@convergence.de> - * Andre Draszik <ad@convergence.de> - * for convergence integrated media GmbH - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public License - * as published by the Free Software Foundation; either version 2.1 - * 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 Lesser 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. - * - */ - -#ifndef _DVBFRONTEND_H_ -#define _DVBFRONTEND_H_ - -#include <linux/types.h> - -typedef enum fe_type { - FE_QPSK, - FE_QAM, - FE_OFDM, - FE_ATSC -} fe_type_t; - - -typedef enum fe_caps { - FE_IS_STUPID = 0, - FE_CAN_INVERSION_AUTO = 0x1, - FE_CAN_FEC_1_2 = 0x2, - FE_CAN_FEC_2_3 = 0x4, - FE_CAN_FEC_3_4 = 0x8, - FE_CAN_FEC_4_5 = 0x10, - FE_CAN_FEC_5_6 = 0x20, - FE_CAN_FEC_6_7 = 0x40, - FE_CAN_FEC_7_8 = 0x80, - FE_CAN_FEC_8_9 = 0x100, - FE_CAN_FEC_AUTO = 0x200, - FE_CAN_QPSK = 0x400, - FE_CAN_QAM_16 = 0x800, - FE_CAN_QAM_32 = 0x1000, - FE_CAN_QAM_64 = 0x2000, - FE_CAN_QAM_128 = 0x4000, - FE_CAN_QAM_256 = 0x8000, - FE_CAN_QAM_AUTO = 0x10000, - FE_CAN_TRANSMISSION_MODE_AUTO = 0x20000, - FE_CAN_BANDWIDTH_AUTO = 0x40000, - FE_CAN_GUARD_INTERVAL_AUTO = 0x80000, - FE_CAN_HIERARCHY_AUTO = 0x100000, - FE_CAN_8VSB = 0x200000, - FE_CAN_16VSB = 0x400000, - FE_HAS_EXTENDED_CAPS = 0x800000, /* We need more bitspace for newer APIs, indicate this. */ - FE_CAN_TURBO_FEC = 0x8000000, /* frontend supports "turbo fec modulation" */ - FE_CAN_2G_MODULATION = 0x10000000, /* frontend supports "2nd generation modulation" (DVB-S2) */ - FE_NEEDS_BENDING = 0x20000000, /* not supported anymore, don't use (frontend requires frequency bending) */ - FE_CAN_RECOVER = 0x40000000, /* frontend can recover from a cable unplug automatically */ - FE_CAN_MUTE_TS = 0x80000000 /* frontend can stop spurious TS data output */ -} fe_caps_t; - - -struct dvb_frontend_info { - char name[128]; - fe_type_t type; - __u32 frequency_min; - __u32 frequency_max; - __u32 frequency_stepsize; - __u32 frequency_tolerance; - __u32 symbol_rate_min; - __u32 symbol_rate_max; - __u32 symbol_rate_tolerance; /* ppm */ - __u32 notifier_delay; /* DEPRECATED */ - fe_caps_t caps; -}; - - -/** - * Check out the DiSEqC bus spec available on http://www.eutelsat.org/ for - * the meaning of this struct... - */ -struct dvb_diseqc_master_cmd { - __u8 msg [6]; /* { framing, address, command, data [3] } */ - __u8 msg_len; /* valid values are 3...6 */ -}; - - -struct dvb_diseqc_slave_reply { - __u8 msg [4]; /* { framing, data [3] } */ - __u8 msg_len; /* valid values are 0...4, 0 means no msg */ - int timeout; /* return from ioctl after timeout ms with */ -}; /* errorcode when no message was received */ - - -typedef enum fe_sec_voltage { - SEC_VOLTAGE_13, - SEC_VOLTAGE_18, - SEC_VOLTAGE_OFF -} fe_sec_voltage_t; - - -typedef enum fe_sec_tone_mode { - SEC_TONE_ON, - SEC_TONE_OFF -} fe_sec_tone_mode_t; - - -typedef enum fe_sec_mini_cmd { - SEC_MINI_A, - SEC_MINI_B -} fe_sec_mini_cmd_t; - - -typedef enum fe_status { - FE_HAS_SIGNAL = 0x01, /* found something above the noise level */ - FE_HAS_CARRIER = 0x02, /* found a DVB signal */ - FE_HAS_VITERBI = 0x04, /* FEC is stable */ - FE_HAS_SYNC = 0x08, /* found sync bytes */ - FE_HAS_LOCK = 0x10, /* everything's working... */ - FE_TIMEDOUT = 0x20, /* no lock within the last ~2 seconds */ - FE_REINIT = 0x40 /* frontend was reinitialized, */ -} fe_status_t; /* application is recommended to reset */ - /* DiSEqC, tone and parameters */ - -typedef enum fe_spectral_inversion { - INVERSION_OFF, - INVERSION_ON, - INVERSION_AUTO -} fe_spectral_inversion_t; - - -typedef enum fe_code_rate { - FEC_NONE = 0, - FEC_1_2, - FEC_2_3, - FEC_3_4, - FEC_4_5, - FEC_5_6, - FEC_6_7, - FEC_7_8, - FEC_8_9, - FEC_AUTO, - FEC_3_5, - FEC_9_10, -} fe_code_rate_t; - - -typedef enum fe_modulation { - QPSK, - QAM_16, - QAM_32, - QAM_64, - QAM_128, - QAM_256, - QAM_AUTO, - VSB_8, - VSB_16, - PSK_8, - APSK_16, - APSK_32, - DQPSK, -} fe_modulation_t; - -typedef enum fe_transmit_mode { - TRANSMISSION_MODE_2K, - TRANSMISSION_MODE_8K, - TRANSMISSION_MODE_AUTO, - TRANSMISSION_MODE_4K, - TRANSMISSION_MODE_1K, - TRANSMISSION_MODE_16K, - TRANSMISSION_MODE_32K, -} fe_transmit_mode_t; - -typedef enum fe_bandwidth { - BANDWIDTH_8_MHZ, - BANDWIDTH_7_MHZ, - BANDWIDTH_6_MHZ, - BANDWIDTH_AUTO, - BANDWIDTH_5_MHZ, - BANDWIDTH_10_MHZ, - BANDWIDTH_1_712_MHZ, -} fe_bandwidth_t; - - -typedef enum fe_guard_interval { - GUARD_INTERVAL_1_32, - GUARD_INTERVAL_1_16, - GUARD_INTERVAL_1_8, - GUARD_INTERVAL_1_4, - GUARD_INTERVAL_AUTO, - GUARD_INTERVAL_1_128, - GUARD_INTERVAL_19_128, - GUARD_INTERVAL_19_256, -} fe_guard_interval_t; - - -typedef enum fe_hierarchy { - HIERARCHY_NONE, - HIERARCHY_1, - HIERARCHY_2, - HIERARCHY_4, - HIERARCHY_AUTO -} fe_hierarchy_t; - - -struct dvb_qpsk_parameters { - __u32 symbol_rate; /* symbol rate in Symbols per second */ - fe_code_rate_t fec_inner; /* forward error correction (see above) */ -}; - -struct dvb_qam_parameters { - __u32 symbol_rate; /* symbol rate in Symbols per second */ - fe_code_rate_t fec_inner; /* forward error correction (see above) */ - fe_modulation_t modulation; /* modulation type (see above) */ -}; - -struct dvb_vsb_parameters { - fe_modulation_t modulation; /* modulation type (see above) */ -}; - -struct dvb_ofdm_parameters { - fe_bandwidth_t bandwidth; - fe_code_rate_t code_rate_HP; /* high priority stream code rate */ - fe_code_rate_t code_rate_LP; /* low priority stream code rate */ - fe_modulation_t constellation; /* modulation type (see above) */ - fe_transmit_mode_t transmission_mode; - fe_guard_interval_t guard_interval; - fe_hierarchy_t hierarchy_information; -}; - - -struct dvb_frontend_parameters { - __u32 frequency; /* (absolute) frequency in Hz for QAM/OFDM/ATSC */ - /* intermediate frequency in kHz for QPSK */ - fe_spectral_inversion_t inversion; - union { - struct dvb_qpsk_parameters qpsk; - struct dvb_qam_parameters qam; - struct dvb_ofdm_parameters ofdm; - struct dvb_vsb_parameters vsb; - } u; -}; - - -struct dvb_frontend_event { - fe_status_t status; - struct dvb_frontend_parameters parameters; -}; - -/* S2API Commands */ -#define DTV_UNDEFINED 0 -#define DTV_TUNE 1 -#define DTV_CLEAR 2 -#define DTV_FREQUENCY 3 -#define DTV_MODULATION 4 -#define DTV_BANDWIDTH_HZ 5 -#define DTV_INVERSION 6 -#define DTV_DISEQC_MASTER 7 -#define DTV_SYMBOL_RATE 8 -#define DTV_INNER_FEC 9 -#define DTV_VOLTAGE 10 -#define DTV_TONE 11 -#define DTV_PILOT 12 -#define DTV_ROLLOFF 13 -#define DTV_DISEQC_SLAVE_REPLY 14 - -/* Basic enumeration set for querying unlimited capabilities */ -#define DTV_FE_CAPABILITY_COUNT 15 -#define DTV_FE_CAPABILITY 16 -#define DTV_DELIVERY_SYSTEM 17 - -/* ISDB-T and ISDB-Tsb */ -#define DTV_ISDBT_PARTIAL_RECEPTION 18 -#define DTV_ISDBT_SOUND_BROADCASTING 19 - -#define DTV_ISDBT_SB_SUBCHANNEL_ID 20 -#define DTV_ISDBT_SB_SEGMENT_IDX 21 -#define DTV_ISDBT_SB_SEGMENT_COUNT 22 - -#define DTV_ISDBT_LAYERA_FEC 23 -#define DTV_ISDBT_LAYERA_MODULATION 24 -#define DTV_ISDBT_LAYERA_SEGMENT_COUNT 25 -#define DTV_ISDBT_LAYERA_TIME_INTERLEAVING 26 - -#define DTV_ISDBT_LAYERB_FEC 27 -#define DTV_ISDBT_LAYERB_MODULATION 28 -#define DTV_ISDBT_LAYERB_SEGMENT_COUNT 29 -#define DTV_ISDBT_LAYERB_TIME_INTERLEAVING 30 - -#define DTV_ISDBT_LAYERC_FEC 31 -#define DTV_ISDBT_LAYERC_MODULATION 32 -#define DTV_ISDBT_LAYERC_SEGMENT_COUNT 33 -#define DTV_ISDBT_LAYERC_TIME_INTERLEAVING 34 - -#define DTV_API_VERSION 35 - -#define DTV_CODE_RATE_HP 36 -#define DTV_CODE_RATE_LP 37 -#define DTV_GUARD_INTERVAL 38 -#define DTV_TRANSMISSION_MODE 39 -#define DTV_HIERARCHY 40 - -#define DTV_ISDBT_LAYER_ENABLED 41 - -#define DTV_ISDBS_TS_ID 42 - -#define DTV_DVBT2_PLP_ID 43 - -#define DTV_MAX_COMMAND DTV_DVBT2_PLP_ID - -typedef enum fe_pilot { - PILOT_ON, - PILOT_OFF, - PILOT_AUTO, -} fe_pilot_t; - -typedef enum fe_rolloff { - ROLLOFF_35, /* Implied value in DVB-S, default for DVB-S2 */ - ROLLOFF_20, - ROLLOFF_25, - ROLLOFF_AUTO, -} fe_rolloff_t; - -typedef enum fe_delivery_system { - SYS_UNDEFINED, - SYS_DVBC_ANNEX_AC, - SYS_DVBC_ANNEX_B, - SYS_DVBT, - SYS_DSS, - SYS_DVBS, - SYS_DVBS2, - SYS_DVBH, - SYS_ISDBT, - SYS_ISDBS, - SYS_ISDBC, - SYS_ATSC, - SYS_ATSCMH, - SYS_DMBTH, - SYS_CMMB, - SYS_DAB, - SYS_DVBT2, -} fe_delivery_system_t; - -struct dtv_cmds_h { - char *name; /* A display name for debugging purposes */ - - __u32 cmd; /* A unique ID */ - - /* Flags */ - __u32 set:1; /* Either a set or get property */ - __u32 buffer:1; /* Does this property use the buffer? */ - __u32 reserved:30; /* Align */ -}; - -struct dtv_property { - __u32 cmd; - __u32 reserved[3]; - union { - __u32 data; - struct { - __u8 data[32]; - __u32 len; - __u32 reserved1[3]; - void *reserved2; - } buffer; - } u; - int result; -} __attribute__ ((packed)); - -/* num of properties cannot exceed DTV_IOCTL_MAX_MSGS per ioctl */ -#define DTV_IOCTL_MAX_MSGS 64 - -struct dtv_properties { - __u32 num; - struct dtv_property *props; -}; - -#define <link linkend="FE_GET_PROPERTY">FE_SET_PROPERTY</link> _IOW('o', 82, struct dtv_properties) -#define <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link> _IOR('o', 83, struct dtv_properties) - - -/** - * When set, this flag will disable any zigzagging or other "normal" tuning - * behaviour. Additionally, there will be no automatic monitoring of the lock - * status, and hence no frontend events will be generated. If a frontend device - * is closed, this flag will be automatically turned off when the device is - * reopened read-write. - */ -#define FE_TUNE_MODE_ONESHOT 0x01 - - -#define <link linkend="FE_GET_INFO">FE_GET_INFO</link> _IOR('o', 61, struct dvb_frontend_info) - -#define <link linkend="FE_DISEQC_RESET_OVERLOAD">FE_DISEQC_RESET_OVERLOAD</link> _IO('o', 62) -#define <link linkend="FE_DISEQC_SEND_MASTER_CMD">FE_DISEQC_SEND_MASTER_CMD</link> _IOW('o', 63, struct dvb_diseqc_master_cmd) -#define <link linkend="FE_DISEQC_RECV_SLAVE_REPLY">FE_DISEQC_RECV_SLAVE_REPLY</link> _IOR('o', 64, struct dvb_diseqc_slave_reply) -#define <link linkend="FE_DISEQC_SEND_BURST">FE_DISEQC_SEND_BURST</link> _IO('o', 65) /* fe_sec_mini_cmd_t */ - -#define <link linkend="FE_SET_TONE">FE_SET_TONE</link> _IO('o', 66) /* fe_sec_tone_mode_t */ -#define <link linkend="FE_SET_VOLTAGE">FE_SET_VOLTAGE</link> _IO('o', 67) /* fe_sec_voltage_t */ -#define <link linkend="FE_ENABLE_HIGH_LNB_VOLTAGE">FE_ENABLE_HIGH_LNB_VOLTAGE</link> _IO('o', 68) /* int */ - -#define <link linkend="FE_READ_STATUS">FE_READ_STATUS</link> _IOR('o', 69, fe_status_t) -#define <link linkend="FE_READ_BER">FE_READ_BER</link> _IOR('o', 70, __u32) -#define <link linkend="FE_READ_SIGNAL_STRENGTH">FE_READ_SIGNAL_STRENGTH</link> _IOR('o', 71, __u16) -#define <link linkend="FE_READ_SNR">FE_READ_SNR</link> _IOR('o', 72, __u16) -#define <link linkend="FE_READ_UNCORRECTED_BLOCKS">FE_READ_UNCORRECTED_BLOCKS</link> _IOR('o', 73, __u32) - -#define <link linkend="FE_SET_FRONTEND">FE_SET_FRONTEND</link> _IOW('o', 76, struct dvb_frontend_parameters) -#define <link linkend="FE_GET_FRONTEND">FE_GET_FRONTEND</link> _IOR('o', 77, struct dvb_frontend_parameters) -#define <link linkend="FE_SET_FRONTEND_TUNE_MODE">FE_SET_FRONTEND_TUNE_MODE</link> _IO('o', 81) /* unsigned int */ -#define <link linkend="FE_GET_EVENT">FE_GET_EVENT</link> _IOR('o', 78, struct dvb_frontend_event) - -#define <link linkend="FE_DISHNETWORK_SEND_LEGACY_CMD">FE_DISHNETWORK_SEND_LEGACY_CMD</link> _IO('o', 80) /* unsigned int */ - -#endif /*_DVBFRONTEND_H_*/ -</programlisting> diff --git a/Documentation/DocBook/media-entities.tmpl b/Documentation/DocBook/media-entities.tmpl deleted file mode 100644 index e5fe09430fd..00000000000 --- a/Documentation/DocBook/media-entities.tmpl +++ /dev/null @@ -1,464 +0,0 @@ -<!-- Generated file! Do not edit. --> - -<!-- Functions --> -<!ENTITY func-close "<link linkend='func-close'><function>close()</function></link>"> -<!ENTITY func-ioctl "<link linkend='func-ioctl'><function>ioctl()</function></link>"> -<!ENTITY func-mmap "<link linkend='func-mmap'><function>mmap()</function></link>"> -<!ENTITY func-munmap "<link linkend='func-munmap'><function>munmap()</function></link>"> -<!ENTITY func-open "<link linkend='func-open'><function>open()</function></link>"> -<!ENTITY func-poll "<link linkend='func-poll'><function>poll()</function></link>"> -<!ENTITY func-read "<link linkend='func-read'><function>read()</function></link>"> -<!ENTITY func-select "<link linkend='func-select'><function>select()</function></link>"> -<!ENTITY func-write "<link linkend='func-write'><function>write()</function></link>"> - -<!ENTITY media-func-close "<link linkend='media-func-close'><function>close()</function></link>"> -<!ENTITY media-func-ioctl "<link linkend='media-func-ioctl'><function>ioctl()</function></link>"> -<!ENTITY media-func-open "<link linkend='media-func-open'><function>open()</function></link>"> - -<!-- Ioctls --> -<!ENTITY VIDIOC-CROPCAP "<link linkend='vidioc-cropcap'><constant>VIDIOC_CROPCAP</constant></link>"> -<!ENTITY VIDIOC-DBG-G-CHIP-IDENT "<link linkend='vidioc-dbg-g-chip-ident'><constant>VIDIOC_DBG_G_CHIP_IDENT</constant></link>"> -<!ENTITY VIDIOC-DBG-G-REGISTER "<link linkend='vidioc-dbg-g-register'><constant>VIDIOC_DBG_G_REGISTER</constant></link>"> -<!ENTITY VIDIOC-DBG-S-REGISTER "<link linkend='vidioc-dbg-g-register'><constant>VIDIOC_DBG_S_REGISTER</constant></link>"> -<!ENTITY VIDIOC-DQBUF "<link linkend='vidioc-qbuf'><constant>VIDIOC_DQBUF</constant></link>"> -<!ENTITY VIDIOC-DQEVENT "<link linkend='vidioc-dqevent'><constant>VIDIOC_DQEVENT</constant></link>"> -<!ENTITY VIDIOC-ENCODER-CMD "<link linkend='vidioc-encoder-cmd'><constant>VIDIOC_ENCODER_CMD</constant></link>"> -<!ENTITY VIDIOC-ENUMAUDIO "<link linkend='vidioc-enumaudio'><constant>VIDIOC_ENUMAUDIO</constant></link>"> -<!ENTITY VIDIOC-ENUMAUDOUT "<link linkend='vidioc-enumaudioout'><constant>VIDIOC_ENUMAUDOUT</constant></link>"> -<!ENTITY VIDIOC-ENUMINPUT "<link linkend='vidioc-enuminput'><constant>VIDIOC_ENUMINPUT</constant></link>"> -<!ENTITY VIDIOC-ENUMOUTPUT "<link linkend='vidioc-enumoutput'><constant>VIDIOC_ENUMOUTPUT</constant></link>"> -<!ENTITY VIDIOC-ENUMSTD "<link linkend='vidioc-enumstd'><constant>VIDIOC_ENUMSTD</constant></link>"> -<!ENTITY VIDIOC-ENUM-DV-PRESETS "<link linkend='vidioc-enum-dv-presets'><constant>VIDIOC_ENUM_DV_PRESETS</constant></link>"> -<!ENTITY VIDIOC-ENUM-FMT "<link linkend='vidioc-enum-fmt'><constant>VIDIOC_ENUM_FMT</constant></link>"> -<!ENTITY VIDIOC-ENUM-FRAMEINTERVALS "<link linkend='vidioc-enum-frameintervals'><constant>VIDIOC_ENUM_FRAMEINTERVALS</constant></link>"> -<!ENTITY VIDIOC-ENUM-FRAMESIZES "<link linkend='vidioc-enum-framesizes'><constant>VIDIOC_ENUM_FRAMESIZES</constant></link>"> -<!ENTITY VIDIOC-G-AUDIO "<link linkend='vidioc-g-audio'><constant>VIDIOC_G_AUDIO</constant></link>"> -<!ENTITY VIDIOC-G-AUDOUT "<link linkend='vidioc-g-audioout'><constant>VIDIOC_G_AUDOUT</constant></link>"> -<!ENTITY VIDIOC-G-CROP "<link linkend='vidioc-g-crop'><constant>VIDIOC_G_CROP</constant></link>"> -<!ENTITY VIDIOC-G-CTRL "<link linkend='vidioc-g-ctrl'><constant>VIDIOC_G_CTRL</constant></link>"> -<!ENTITY VIDIOC-G-DV-PRESET "<link linkend='vidioc-g-dv-preset'><constant>VIDIOC_G_DV_PRESET</constant></link>"> -<!ENTITY VIDIOC-G-DV-TIMINGS "<link linkend='vidioc-g-dv-timings'><constant>VIDIOC_G_DV_TIMINGS</constant></link>"> -<!ENTITY VIDIOC-G-ENC-INDEX "<link linkend='vidioc-g-enc-index'><constant>VIDIOC_G_ENC_INDEX</constant></link>"> -<!ENTITY VIDIOC-G-EXT-CTRLS "<link linkend='vidioc-g-ext-ctrls'><constant>VIDIOC_G_EXT_CTRLS</constant></link>"> -<!ENTITY VIDIOC-G-FBUF "<link linkend='vidioc-g-fbuf'><constant>VIDIOC_G_FBUF</constant></link>"> -<!ENTITY VIDIOC-G-FMT "<link linkend='vidioc-g-fmt'><constant>VIDIOC_G_FMT</constant></link>"> -<!ENTITY VIDIOC-G-FREQUENCY "<link linkend='vidioc-g-frequency'><constant>VIDIOC_G_FREQUENCY</constant></link>"> -<!ENTITY VIDIOC-G-INPUT "<link linkend='vidioc-g-input'><constant>VIDIOC_G_INPUT</constant></link>"> -<!ENTITY VIDIOC-G-JPEGCOMP "<link linkend='vidioc-g-jpegcomp'><constant>VIDIOC_G_JPEGCOMP</constant></link>"> -<!ENTITY VIDIOC-G-MPEGCOMP "<link linkend=''><constant>VIDIOC_G_MPEGCOMP</constant></link>"> -<!ENTITY VIDIOC-G-MODULATOR "<link linkend='vidioc-g-modulator'><constant>VIDIOC_G_MODULATOR</constant></link>"> -<!ENTITY VIDIOC-G-OUTPUT "<link linkend='vidioc-g-output'><constant>VIDIOC_G_OUTPUT</constant></link>"> -<!ENTITY VIDIOC-G-PARM "<link linkend='vidioc-g-parm'><constant>VIDIOC_G_PARM</constant></link>"> -<!ENTITY VIDIOC-G-PRIORITY "<link linkend='vidioc-g-priority'><constant>VIDIOC_G_PRIORITY</constant></link>"> -<!ENTITY VIDIOC-G-SLICED-VBI-CAP "<link linkend='vidioc-g-sliced-vbi-cap'><constant>VIDIOC_G_SLICED_VBI_CAP</constant></link>"> -<!ENTITY VIDIOC-G-STD "<link linkend='vidioc-g-std'><constant>VIDIOC_G_STD</constant></link>"> -<!ENTITY VIDIOC-G-TUNER "<link linkend='vidioc-g-tuner'><constant>VIDIOC_G_TUNER</constant></link>"> -<!ENTITY VIDIOC-LOG-STATUS "<link linkend='vidioc-log-status'><constant>VIDIOC_LOG_STATUS</constant></link>"> -<!ENTITY VIDIOC-OVERLAY "<link linkend='vidioc-overlay'><constant>VIDIOC_OVERLAY</constant></link>"> -<!ENTITY VIDIOC-QBUF "<link linkend='vidioc-qbuf'><constant>VIDIOC_QBUF</constant></link>"> -<!ENTITY VIDIOC-QUERYBUF "<link linkend='vidioc-querybuf'><constant>VIDIOC_QUERYBUF</constant></link>"> -<!ENTITY VIDIOC-QUERYCAP "<link linkend='vidioc-querycap'><constant>VIDIOC_QUERYCAP</constant></link>"> -<!ENTITY VIDIOC-QUERYCTRL "<link linkend='vidioc-queryctrl'><constant>VIDIOC_QUERYCTRL</constant></link>"> -<!ENTITY VIDIOC-QUERYMENU "<link linkend='vidioc-queryctrl'><constant>VIDIOC_QUERYMENU</constant></link>"> -<!ENTITY VIDIOC-QUERYSTD "<link linkend='vidioc-querystd'><constant>VIDIOC_QUERYSTD</constant></link>"> -<!ENTITY VIDIOC-QUERY-DV-PRESET "<link linkend='vidioc-query-dv-preset'><constant>VIDIOC_QUERY_DV_PRESET</constant></link>"> -<!ENTITY VIDIOC-REQBUFS "<link linkend='vidioc-reqbufs'><constant>VIDIOC_REQBUFS</constant></link>"> -<!ENTITY VIDIOC-STREAMOFF "<link linkend='vidioc-streamon'><constant>VIDIOC_STREAMOFF</constant></link>"> -<!ENTITY VIDIOC-STREAMON "<link linkend='vidioc-streamon'><constant>VIDIOC_STREAMON</constant></link>"> -<!ENTITY VIDIOC-SUBSCRIBE-EVENT "<link linkend='vidioc-subscribe-event'><constant>VIDIOC_SUBSCRIBE_EVENT</constant></link>"> -<!ENTITY VIDIOC-S-AUDIO "<link linkend='vidioc-g-audio'><constant>VIDIOC_S_AUDIO</constant></link>"> -<!ENTITY VIDIOC-S-AUDOUT "<link linkend='vidioc-g-audioout'><constant>VIDIOC_S_AUDOUT</constant></link>"> -<!ENTITY VIDIOC-S-CROP "<link linkend='vidioc-g-crop'><constant>VIDIOC_S_CROP</constant></link>"> -<!ENTITY VIDIOC-S-CTRL "<link linkend='vidioc-g-ctrl'><constant>VIDIOC_S_CTRL</constant></link>"> -<!ENTITY VIDIOC-S-DV-PRESET "<link linkend='vidioc-g-dv-preset'><constant>VIDIOC_S_DV_PRESET</constant></link>"> -<!ENTITY VIDIOC-S-DV-TIMINGS "<link linkend='vidioc-g-dv-timings'><constant>VIDIOC_S_DV_TIMINGS</constant></link>"> -<!ENTITY VIDIOC-S-EXT-CTRLS "<link linkend='vidioc-g-ext-ctrls'><constant>VIDIOC_S_EXT_CTRLS</constant></link>"> -<!ENTITY VIDIOC-S-FBUF "<link linkend='vidioc-g-fbuf'><constant>VIDIOC_S_FBUF</constant></link>"> -<!ENTITY VIDIOC-S-FMT "<link linkend='vidioc-g-fmt'><constant>VIDIOC_S_FMT</constant></link>"> -<!ENTITY VIDIOC-S-FREQUENCY "<link linkend='vidioc-g-frequency'><constant>VIDIOC_S_FREQUENCY</constant></link>"> -<!ENTITY VIDIOC-S-HW-FREQ-SEEK "<link linkend='vidioc-s-hw-freq-seek'><constant>VIDIOC_S_HW_FREQ_SEEK</constant></link>"> -<!ENTITY VIDIOC-S-INPUT "<link linkend='vidioc-g-input'><constant>VIDIOC_S_INPUT</constant></link>"> -<!ENTITY VIDIOC-S-JPEGCOMP "<link linkend='vidioc-g-jpegcomp'><constant>VIDIOC_S_JPEGCOMP</constant></link>"> -<!ENTITY VIDIOC-S-MPEGCOMP "<link linkend=''><constant>VIDIOC_S_MPEGCOMP</constant></link>"> -<!ENTITY VIDIOC-S-MODULATOR "<link linkend='vidioc-g-modulator'><constant>VIDIOC_S_MODULATOR</constant></link>"> -<!ENTITY VIDIOC-S-OUTPUT "<link linkend='vidioc-g-output'><constant>VIDIOC_S_OUTPUT</constant></link>"> -<!ENTITY VIDIOC-S-PARM "<link linkend='vidioc-g-parm'><constant>VIDIOC_S_PARM</constant></link>"> -<!ENTITY VIDIOC-S-PRIORITY "<link linkend='vidioc-g-priority'><constant>VIDIOC_S_PRIORITY</constant></link>"> -<!ENTITY VIDIOC-S-STD "<link linkend='vidioc-g-std'><constant>VIDIOC_S_STD</constant></link>"> -<!ENTITY VIDIOC-S-TUNER "<link linkend='vidioc-g-tuner'><constant>VIDIOC_S_TUNER</constant></link>"> -<!ENTITY VIDIOC-SUBDEV-ENUM-FRAME-SIZE "<link linkend='vidioc-subdev-enum-frame-size'><constant>VIDIOC_SUBDEV_ENUM_FRAME_SIZE</constant></link>"> -<!ENTITY VIDIOC-SUBDEV-ENUM-MBUS-CODE "<link linkend='vidioc-subdev-enum-mbus-code'><constant>VIDIOC_SUBDEV_ENUM_MBUS_CODE</constant></link>"> -<!ENTITY VIDIOC-SUBDEV-G-CROP "<link linkend='vidioc-subdev-g-crop'><constant>VIDIOC_SUBDEV_G_CROP</constant></link>"> -<!ENTITY VIDIOC-SUBDEV-G-FMT "<link linkend='vidioc-subdev-g-fmt'><constant>VIDIOC_SUBDEV_G_FMT</constant></link>"> -<!ENTITY VIDIOC-SUBDEV-G-FRAME-INTERVAL "<link linkend='vidioc-subdev-g-frame-interval'><constant>VIDIOC_SUBDEV_G_FRAME_INTERVAL</constant></link>"> -<!ENTITY VIDIOC-SUBDEV-S-CROP "<link linkend='vidioc-subdev-g-crop'><constant>VIDIOC_SUBDEV_S_CROP</constant></link>"> -<!ENTITY VIDIOC-SUBDEV-S-FMT "<link linkend='vidioc-subdev-g-fmt'><constant>VIDIOC_SUBDEV_S_FMT</constant></link>"> -<!ENTITY VIDIOC-SUBDEV-S-FRAME-INTERVAL "<link linkend='vidioc-subdev-g-frame-interval'><constant>VIDIOC_SUBDEV_S_FRAME_INTERVAL</constant></link>"> -<!ENTITY VIDIOC-TRY-ENCODER-CMD "<link linkend='vidioc-encoder-cmd'><constant>VIDIOC_TRY_ENCODER_CMD</constant></link>"> -<!ENTITY VIDIOC-TRY-EXT-CTRLS "<link linkend='vidioc-g-ext-ctrls'><constant>VIDIOC_TRY_EXT_CTRLS</constant></link>"> -<!ENTITY VIDIOC-TRY-FMT "<link linkend='vidioc-g-fmt'><constant>VIDIOC_TRY_FMT</constant></link>"> -<!ENTITY VIDIOC-UNSUBSCRIBE-EVENT "<link linkend='vidioc-subscribe-event'><constant>VIDIOC_UNSUBSCRIBE_EVENT</constant></link>"> - -<!ENTITY MEDIA-IOC-DEVICE-INFO "<link linkend='media-ioc-device-info'><constant>MEDIA_IOC_DEVICE_INFO</constant></link>"> -<!ENTITY MEDIA-IOC-ENUM-ENTITIES "<link linkend='media-ioc-enum-entities'><constant>MEDIA_IOC_ENUM_ENTITIES</constant></link>"> -<!ENTITY MEDIA-IOC-ENUM-LINKS "<link linkend='media-ioc-enum-links'><constant>MEDIA_IOC_ENUM_LINKS</constant></link>"> -<!ENTITY MEDIA-IOC-SETUP-LINK "<link linkend='media-ioc-setup-link'><constant>MEDIA_IOC_SETUP_LINK</constant></link>"> - -<!-- Types --> -<!ENTITY v4l2-std-id "<link linkend='v4l2-std-id'>v4l2_std_id</link>"> - -<!-- Enums --> -<!ENTITY v4l2-buf-type "enum <link linkend='v4l2-buf-type'>v4l2_buf_type</link>"> -<!ENTITY v4l2-colorspace "enum <link linkend='v4l2-colorspace'>v4l2_colorspace</link>"> -<!ENTITY v4l2-ctrl-type "enum <link linkend='v4l2-ctrl-type'>v4l2_ctrl_type</link>"> -<!ENTITY v4l2-exposure-auto-type "enum <link linkend='v4l2-exposure-auto-type'>v4l2_exposure_auto_type</link>"> -<!ENTITY v4l2-field "enum <link linkend='v4l2-field'>v4l2_field</link>"> -<!ENTITY v4l2-frmivaltypes "enum <link linkend='v4l2-frmivaltypes'>v4l2_frmivaltypes</link>"> -<!ENTITY v4l2-frmsizetypes "enum <link linkend='v4l2-frmsizetypes'>v4l2_frmsizetypes</link>"> -<!ENTITY v4l2-mbus-pixelcode "enum <link linkend='v4l2-mbus-pixelcode'>v4l2_mbus_pixelcode</link>"> -<!ENTITY v4l2-memory "enum <link linkend='v4l2-memory'>v4l2_memory</link>"> -<!ENTITY v4l2-mpeg-audio-ac3-bitrate "enum <link linkend='v4l2-mpeg-audio-ac3-bitrate'>v4l2_mpeg_audio_ac3_bitrate</link>"> -<!ENTITY v4l2-mpeg-audio-crc "enum <link linkend='v4l2-mpeg-audio-crc'>v4l2_mpeg_audio_crc</link>"> -<!ENTITY v4l2-mpeg-audio-emphasis "enum <link linkend='v4l2-mpeg-audio-emphasis'>v4l2_mpeg_audio_emphasis</link>"> -<!ENTITY v4l2-mpeg-audio-encoding "enum <link linkend='v4l2-mpeg-audio-encoding'>v4l2_mpeg_audio_encoding</link>"> -<!ENTITY v4l2-mpeg-audio-l1-bitrate "enum <link linkend='v4l2-mpeg-audio-l1-bitrate'>v4l2_mpeg_audio_l1_bitrate</link>"> -<!ENTITY v4l2-mpeg-audio-l2-bitrate "enum <link linkend='v4l2-mpeg-audio-l2-bitrate'>v4l2_mpeg_audio_l2_bitrate</link>"> -<!ENTITY v4l2-mpeg-audio-l3-bitrate "enum <link linkend='v4l2-mpeg-audio-l3-bitrate'>v4l2_mpeg_audio_l3_bitrate</link>"> -<!ENTITY v4l2-mpeg-audio-mode "enum <link linkend='v4l2-mpeg-audio-mode'>v4l2_mpeg_audio_mode</link>"> -<!ENTITY v4l2-mpeg-audio-mode-extension "enum <link linkend='v4l2-mpeg-audio-mode-extension'>v4l2_mpeg_audio_mode_extension</link>"> -<!ENTITY v4l2-mpeg-audio-sampling-freq "enum <link linkend='v4l2-mpeg-audio-sampling-freq'>v4l2_mpeg_audio_sampling_freq</link>"> -<!ENTITY chroma-spatial-filter-type "enum <link linkend='chroma-spatial-filter-type'>v4l2_mpeg_cx2341x_video_chroma_spatial_filter_type</link>"> -<!ENTITY luma-spatial-filter-type "enum <link linkend='luma-spatial-filter-type'>v4l2_mpeg_cx2341x_video_luma_spatial_filter_type</link>"> -<!ENTITY v4l2-mpeg-cx2341x-video-median-filter-type "enum <link linkend='v4l2-mpeg-cx2341x-video-median-filter-type'>v4l2_mpeg_cx2341x_video_median_filter_type</link>"> -<!ENTITY v4l2-mpeg-cx2341x-video-spatial-filter-mode "enum <link linkend='v4l2-mpeg-cx2341x-video-spatial-filter-mode'>v4l2_mpeg_cx2341x_video_spatial_filter_mode</link>"> -<!ENTITY v4l2-mpeg-cx2341x-video-temporal-filter-mode "enum <link linkend='v4l2-mpeg-cx2341x-video-temporal-filter-mode'>v4l2_mpeg_cx2341x_video_temporal_filter_mode</link>"> -<!ENTITY v4l2-mpeg-stream-type "enum <link linkend='v4l2-mpeg-stream-type'>v4l2_mpeg_stream_type</link>"> -<!ENTITY v4l2-mpeg-stream-vbi-fmt "enum <link linkend='v4l2-mpeg-stream-vbi-fmt'>v4l2_mpeg_stream_vbi_fmt</link>"> -<!ENTITY v4l2-mpeg-video-aspect "enum <link linkend='v4l2-mpeg-video-aspect'>v4l2_mpeg_video_aspect</link>"> -<!ENTITY v4l2-mpeg-video-bitrate-mode "enum <link linkend='v4l2-mpeg-video-bitrate-mode'>v4l2_mpeg_video_bitrate_mode</link>"> -<!ENTITY v4l2-mpeg-video-encoding "enum <link linkend='v4l2-mpeg-video-encoding'>v4l2_mpeg_video_encoding</link>"> -<!ENTITY v4l2-power-line-frequency "enum <link linkend='v4l2-power-line-frequency'>v4l2_power_line_frequency</link>"> -<!ENTITY v4l2-priority "enum <link linkend='v4l2-priority'>v4l2_priority</link>"> -<!ENTITY v4l2-subdev-format-whence "enum <link linkend='v4l2-subdev-format-whence'>v4l2_subdev_format_whence</link>"> -<!ENTITY v4l2-tuner-type "enum <link linkend='v4l2-tuner-type'>v4l2_tuner_type</link>"> -<!ENTITY v4l2-preemphasis "enum <link linkend='v4l2-preemphasis'>v4l2_preemphasis</link>"> - -<!-- Structures --> -<!ENTITY v4l2-audio "struct <link linkend='v4l2-audio'>v4l2_audio</link>"> -<!ENTITY v4l2-audioout "struct <link linkend='v4l2-audioout'>v4l2_audioout</link>"> -<!ENTITY v4l2-bt-timings "struct <link linkend='v4l2-bt-timings'>v4l2_bt_timings</link>"> -<!ENTITY v4l2-buffer "struct <link linkend='v4l2-buffer'>v4l2_buffer</link>"> -<!ENTITY v4l2-plane "struct <link linkend='v4l2-plane'>v4l2_plane</link>"> -<!ENTITY v4l2-capability "struct <link linkend='v4l2-capability'>v4l2_capability</link>"> -<!ENTITY v4l2-captureparm "struct <link linkend='v4l2-captureparm'>v4l2_captureparm</link>"> -<!ENTITY v4l2-clip "struct <link linkend='v4l2-clip'>v4l2_clip</link>"> -<!ENTITY v4l2-control "struct <link linkend='v4l2-control'>v4l2_control</link>"> -<!ENTITY v4l2-crop "struct <link linkend='v4l2-crop'>v4l2_crop</link>"> -<!ENTITY v4l2-cropcap "struct <link linkend='v4l2-cropcap'>v4l2_cropcap</link>"> -<!ENTITY v4l2-dbg-chip-ident "struct <link linkend='v4l2-dbg-chip-ident'>v4l2_dbg_chip_ident</link>"> -<!ENTITY v4l2-dbg-match "struct <link linkend='v4l2-dbg-match'>v4l2_dbg_match</link>"> -<!ENTITY v4l2-dbg-register "struct <link linkend='v4l2-dbg-register'>v4l2_dbg_register</link>"> -<!ENTITY v4l2-dv-enum-preset "struct <link linkend='v4l2-dv-enum-preset'>v4l2_dv_enum_preset</link>"> -<!ENTITY v4l2-dv-preset "struct <link linkend='v4l2-dv-preset'>v4l2_dv_preset</link>"> -<!ENTITY v4l2-dv-timings "struct <link linkend='v4l2-dv-timings'>v4l2_dv_timings</link>"> -<!ENTITY v4l2-enc-idx "struct <link linkend='v4l2-enc-idx'>v4l2_enc_idx</link>"> -<!ENTITY v4l2-enc-idx-entry "struct <link linkend='v4l2-enc-idx-entry'>v4l2_enc_idx_entry</link>"> -<!ENTITY v4l2-encoder-cmd "struct <link linkend='v4l2-encoder-cmd'>v4l2_encoder_cmd</link>"> -<!ENTITY v4l2-event "struct <link linkend='v4l2-event'>v4l2_event</link>"> -<!ENTITY v4l2-event-subscription "struct <link linkend='v4l2-event-subscription'>v4l2_event_subscription</link>"> -<!ENTITY v4l2-event-vsync "struct <link linkend='v4l2-event-vsync'>v4l2_event_vsync</link>"> -<!ENTITY v4l2-ext-control "struct <link linkend='v4l2-ext-control'>v4l2_ext_control</link>"> -<!ENTITY v4l2-ext-controls "struct <link linkend='v4l2-ext-controls'>v4l2_ext_controls</link>"> -<!ENTITY v4l2-fmtdesc "struct <link linkend='v4l2-fmtdesc'>v4l2_fmtdesc</link>"> -<!ENTITY v4l2-format "struct <link linkend='v4l2-format'>v4l2_format</link>"> -<!ENTITY v4l2-fract "struct <link linkend='v4l2-fract'>v4l2_fract</link>"> -<!ENTITY v4l2-framebuffer "struct <link linkend='v4l2-framebuffer'>v4l2_framebuffer</link>"> -<!ENTITY v4l2-frequency "struct <link linkend='v4l2-frequency'>v4l2_frequency</link>"> -<!ENTITY v4l2-frmival-stepwise "struct <link linkend='v4l2-frmival-stepwise'>v4l2_frmival_stepwise</link>"> -<!ENTITY v4l2-frmivalenum "struct <link linkend='v4l2-frmivalenum'>v4l2_frmivalenum</link>"> -<!ENTITY v4l2-frmsize-discrete "struct <link linkend='v4l2-frmsize-discrete'>v4l2_frmsize_discrete</link>"> -<!ENTITY v4l2-frmsize-stepwise "struct <link linkend='v4l2-frmsize-stepwise'>v4l2_frmsize_stepwise</link>"> -<!ENTITY v4l2-frmsizeenum "struct <link linkend='v4l2-frmsizeenum'>v4l2_frmsizeenum</link>"> -<!ENTITY v4l2-hw-freq-seek "struct <link linkend='v4l2-hw-freq-seek'>v4l2_hw_freq_seek</link>"> -<!ENTITY v4l2-input "struct <link linkend='v4l2-input'>v4l2_input</link>"> -<!ENTITY v4l2-jpegcompression "struct <link linkend='v4l2-jpegcompression'>v4l2_jpegcompression</link>"> -<!ENTITY v4l2-mbus-framefmt "struct <link linkend='v4l2-mbus-framefmt'>v4l2_mbus_framefmt</link>"> -<!ENTITY v4l2-modulator "struct <link linkend='v4l2-modulator'>v4l2_modulator</link>"> -<!ENTITY v4l2-mpeg-vbi-fmt-ivtv "struct <link linkend='v4l2-mpeg-vbi-fmt-ivtv'>v4l2_mpeg_vbi_fmt_ivtv</link>"> -<!ENTITY v4l2-output "struct <link linkend='v4l2-output'>v4l2_output</link>"> -<!ENTITY v4l2-outputparm "struct <link linkend='v4l2-outputparm'>v4l2_outputparm</link>"> -<!ENTITY v4l2-pix-format "struct <link linkend='v4l2-pix-format'>v4l2_pix_format</link>"> -<!ENTITY v4l2-pix-format-mplane "struct <link linkend='v4l2-pix-format-mplane'>v4l2_pix_format_mplane</link>"> -<!ENTITY v4l2-plane-pix-format "struct <link linkend='v4l2-plane-pix-format'>v4l2_plane_pix_format</link>"> -<!ENTITY v4l2-queryctrl "struct <link linkend='v4l2-queryctrl'>v4l2_queryctrl</link>"> -<!ENTITY v4l2-querymenu "struct <link linkend='v4l2-querymenu'>v4l2_querymenu</link>"> -<!ENTITY v4l2-rect "struct <link linkend='v4l2-rect'>v4l2_rect</link>"> -<!ENTITY v4l2-requestbuffers "struct <link linkend='v4l2-requestbuffers'>v4l2_requestbuffers</link>"> -<!ENTITY v4l2-sliced-vbi-cap "struct <link linkend='v4l2-sliced-vbi-cap'>v4l2_sliced_vbi_cap</link>"> -<!ENTITY v4l2-sliced-vbi-data "struct <link linkend='v4l2-sliced-vbi-data'>v4l2_sliced_vbi_data</link>"> -<!ENTITY v4l2-sliced-vbi-format "struct <link linkend='v4l2-sliced-vbi-format'>v4l2_sliced_vbi_format</link>"> -<!ENTITY v4l2-subdev-frame-interval "struct <link linkend='v4l2-subdev-frame-interval'>v4l2_subdev_frame_interval</link>"> -<!ENTITY v4l2-subdev-frame-interval-enum "struct <link linkend='v4l2-subdev-frame-interval-enum'>v4l2_subdev_frame_interval_enum</link>"> -<!ENTITY v4l2-subdev-frame-size-enum "struct <link linkend='v4l2-subdev-frame-size-enum'>v4l2_subdev_frame_size_enum</link>"> -<!ENTITY v4l2-subdev-crop "struct <link linkend='v4l2-subdev-crop'>v4l2_subdev_crop</link>"> -<!ENTITY v4l2-subdev-format "struct <link linkend='v4l2-subdev-format'>v4l2_subdev_format</link>"> -<!ENTITY v4l2-subdev-mbus-code-enum "struct <link linkend='v4l2-subdev-mbus-code-enum'>v4l2_subdev_mbus_code_enum</link>"> -<!ENTITY v4l2-standard "struct <link linkend='v4l2-standard'>v4l2_standard</link>"> -<!ENTITY v4l2-streamparm "struct <link linkend='v4l2-streamparm'>v4l2_streamparm</link>"> -<!ENTITY v4l2-timecode "struct <link linkend='v4l2-timecode'>v4l2_timecode</link>"> -<!ENTITY v4l2-tuner "struct <link linkend='v4l2-tuner'>v4l2_tuner</link>"> -<!ENTITY v4l2-vbi-format "struct <link linkend='v4l2-vbi-format'>v4l2_vbi_format</link>"> -<!ENTITY v4l2-window "struct <link linkend='v4l2-window'>v4l2_window</link>"> - -<!ENTITY media-device-info "struct <link linkend='media-device-info'>media_device_info</link>"> -<!ENTITY media-entity-desc "struct <link linkend='media-entity-desc'>media_entity_desc</link>"> -<!ENTITY media-links-enum "struct <link linkend='media-links-enum'>media_links_enum</link>"> -<!ENTITY media-pad-desc "struct <link linkend='media-pad-desc'>media_pad_desc</link>"> -<!ENTITY media-link-desc "struct <link linkend='media-link-desc'>media_link_desc</link>"> - -<!-- Error Codes --> -<!ENTITY EACCES "<errorcode>EACCES</errorcode> error code"> -<!ENTITY EAGAIN "<errorcode>EAGAIN</errorcode> error code"> -<!ENTITY EBADF "<errorcode>EBADF</errorcode> error code"> -<!ENTITY EBUSY "<errorcode>EBUSY</errorcode> error code"> -<!ENTITY EFAULT "<errorcode>EFAULT</errorcode> error code"> -<!ENTITY EIO "<errorcode>EIO</errorcode> error code"> -<!ENTITY EINTR "<errorcode>EINTR</errorcode> error code"> -<!ENTITY EINVAL "<errorcode>EINVAL</errorcode> error code"> -<!ENTITY ENFILE "<errorcode>ENFILE</errorcode> error code"> -<!ENTITY ENOMEM "<errorcode>ENOMEM</errorcode> error code"> -<!ENTITY ENOSPC "<errorcode>ENOSPC</errorcode> error code"> -<!ENTITY ENOTTY "<errorcode>ENOTTY</errorcode> error code"> -<!ENTITY ENXIO "<errorcode>ENXIO</errorcode> error code"> -<!ENTITY EMFILE "<errorcode>EMFILE</errorcode> error code"> -<!ENTITY EPERM "<errorcode>EPERM</errorcode> error code"> -<!ENTITY EPIPE "<errorcode>EPIPE</errorcode> error code"> -<!ENTITY ERANGE "<errorcode>ERANGE</errorcode> error code"> - -<!-- Subsections --> -<!ENTITY sub-biblio SYSTEM "v4l/biblio.xml"> -<!ENTITY sub-common SYSTEM "v4l/common.xml"> -<!ENTITY sub-planar-apis SYSTEM "v4l/planar-apis.xml"> -<!ENTITY sub-compat SYSTEM "v4l/compat.xml"> -<!ENTITY sub-controls SYSTEM "v4l/controls.xml"> -<!ENTITY sub-dev-capture SYSTEM "v4l/dev-capture.xml"> -<!ENTITY sub-dev-codec SYSTEM "v4l/dev-codec.xml"> -<!ENTITY sub-dev-event SYSTEM "v4l/dev-event.xml"> -<!ENTITY sub-dev-effect SYSTEM "v4l/dev-effect.xml"> -<!ENTITY sub-dev-osd SYSTEM "v4l/dev-osd.xml"> -<!ENTITY sub-dev-output SYSTEM "v4l/dev-output.xml"> -<!ENTITY sub-dev-overlay SYSTEM "v4l/dev-overlay.xml"> -<!ENTITY sub-dev-radio SYSTEM "v4l/dev-radio.xml"> -<!ENTITY sub-dev-raw-vbi SYSTEM "v4l/dev-raw-vbi.xml"> -<!ENTITY sub-dev-rds SYSTEM "v4l/dev-rds.xml"> -<!ENTITY sub-dev-sliced-vbi SYSTEM "v4l/dev-sliced-vbi.xml"> -<!ENTITY sub-dev-subdev SYSTEM "v4l/dev-subdev.xml"> -<!ENTITY sub-dev-teletext SYSTEM "v4l/dev-teletext.xml"> -<!ENTITY sub-driver SYSTEM "v4l/driver.xml"> -<!ENTITY sub-libv4l SYSTEM "v4l/libv4l.xml"> -<!ENTITY sub-lirc_device_interface SYSTEM "v4l/lirc_device_interface.xml"> -<!ENTITY sub-remote_controllers SYSTEM "v4l/remote_controllers.xml"> -<!ENTITY sub-fdl-appendix SYSTEM "v4l/fdl-appendix.xml"> -<!ENTITY sub-close SYSTEM "v4l/func-close.xml"> -<!ENTITY sub-ioctl SYSTEM "v4l/func-ioctl.xml"> -<!ENTITY sub-mmap SYSTEM "v4l/func-mmap.xml"> -<!ENTITY sub-munmap SYSTEM "v4l/func-munmap.xml"> -<!ENTITY sub-open SYSTEM "v4l/func-open.xml"> -<!ENTITY sub-poll SYSTEM "v4l/func-poll.xml"> -<!ENTITY sub-read SYSTEM "v4l/func-read.xml"> -<!ENTITY sub-select SYSTEM "v4l/func-select.xml"> -<!ENTITY sub-write SYSTEM "v4l/func-write.xml"> -<!ENTITY sub-io SYSTEM "v4l/io.xml"> -<!ENTITY sub-grey SYSTEM "v4l/pixfmt-grey.xml"> -<!ENTITY sub-m420 SYSTEM "v4l/pixfmt-m420.xml"> -<!ENTITY sub-nv12 SYSTEM "v4l/pixfmt-nv12.xml"> -<!ENTITY sub-nv12m SYSTEM "v4l/pixfmt-nv12m.xml"> -<!ENTITY sub-nv12mt SYSTEM "v4l/pixfmt-nv12mt.xml"> -<!ENTITY sub-nv16 SYSTEM "v4l/pixfmt-nv16.xml"> -<!ENTITY sub-packed-rgb SYSTEM "v4l/pixfmt-packed-rgb.xml"> -<!ENTITY sub-packed-yuv SYSTEM "v4l/pixfmt-packed-yuv.xml"> -<!ENTITY sub-sbggr16 SYSTEM "v4l/pixfmt-sbggr16.xml"> -<!ENTITY sub-sbggr8 SYSTEM "v4l/pixfmt-sbggr8.xml"> -<!ENTITY sub-sgbrg8 SYSTEM "v4l/pixfmt-sgbrg8.xml"> -<!ENTITY sub-sgrbg8 SYSTEM "v4l/pixfmt-sgrbg8.xml"> -<!ENTITY sub-uyvy SYSTEM "v4l/pixfmt-uyvy.xml"> -<!ENTITY sub-vyuy SYSTEM "v4l/pixfmt-vyuy.xml"> -<!ENTITY sub-y16 SYSTEM "v4l/pixfmt-y16.xml"> -<!ENTITY sub-y41p SYSTEM "v4l/pixfmt-y41p.xml"> -<!ENTITY sub-yuv410 SYSTEM "v4l/pixfmt-yuv410.xml"> -<!ENTITY sub-yuv411p SYSTEM "v4l/pixfmt-yuv411p.xml"> -<!ENTITY sub-yuv420 SYSTEM "v4l/pixfmt-yuv420.xml"> -<!ENTITY sub-yuv420m SYSTEM "v4l/pixfmt-yuv420m.xml"> -<!ENTITY sub-yuv422p SYSTEM "v4l/pixfmt-yuv422p.xml"> -<!ENTITY sub-yuyv SYSTEM "v4l/pixfmt-yuyv.xml"> -<!ENTITY sub-yvyu SYSTEM "v4l/pixfmt-yvyu.xml"> -<!ENTITY sub-srggb10 SYSTEM "v4l/pixfmt-srggb10.xml"> -<!ENTITY sub-srggb12 SYSTEM "v4l/pixfmt-srggb12.xml"> -<!ENTITY sub-srggb8 SYSTEM "v4l/pixfmt-srggb8.xml"> -<!ENTITY sub-y10 SYSTEM "v4l/pixfmt-y10.xml"> -<!ENTITY sub-y12 SYSTEM "v4l/pixfmt-y12.xml"> -<!ENTITY sub-y10b SYSTEM "v4l/pixfmt-y10b.xml"> -<!ENTITY sub-pixfmt SYSTEM "v4l/pixfmt.xml"> -<!ENTITY sub-cropcap SYSTEM "v4l/vidioc-cropcap.xml"> -<!ENTITY sub-dbg-g-register SYSTEM "v4l/vidioc-dbg-g-register.xml"> -<!ENTITY sub-encoder-cmd SYSTEM "v4l/vidioc-encoder-cmd.xml"> -<!ENTITY sub-enum-fmt SYSTEM "v4l/vidioc-enum-fmt.xml"> -<!ENTITY sub-enum-frameintervals SYSTEM "v4l/vidioc-enum-frameintervals.xml"> -<!ENTITY sub-enum-framesizes SYSTEM "v4l/vidioc-enum-framesizes.xml"> -<!ENTITY sub-enumaudio SYSTEM "v4l/vidioc-enumaudio.xml"> -<!ENTITY sub-enumaudioout SYSTEM "v4l/vidioc-enumaudioout.xml"> -<!ENTITY sub-enuminput SYSTEM "v4l/vidioc-enuminput.xml"> -<!ENTITY sub-enumoutput SYSTEM "v4l/vidioc-enumoutput.xml"> -<!ENTITY sub-enum-dv-presets SYSTEM "v4l/vidioc-enum-dv-presets.xml"> -<!ENTITY sub-g-dv-preset SYSTEM "v4l/vidioc-g-dv-preset.xml"> -<!ENTITY sub-query-dv-preset SYSTEM "v4l/vidioc-query-dv-preset.xml"> -<!ENTITY sub-g-dv-timings SYSTEM "v4l/vidioc-g-dv-timings.xml"> -<!ENTITY sub-enumstd SYSTEM "v4l/vidioc-enumstd.xml"> -<!ENTITY sub-g-audio SYSTEM "v4l/vidioc-g-audio.xml"> -<!ENTITY sub-g-audioout SYSTEM "v4l/vidioc-g-audioout.xml"> -<!ENTITY sub-dbg-g-chip-ident SYSTEM "v4l/vidioc-dbg-g-chip-ident.xml"> -<!ENTITY sub-g-crop SYSTEM "v4l/vidioc-g-crop.xml"> -<!ENTITY sub-g-ctrl SYSTEM "v4l/vidioc-g-ctrl.xml"> -<!ENTITY sub-g-enc-index SYSTEM "v4l/vidioc-g-enc-index.xml"> -<!ENTITY sub-g-ext-ctrls SYSTEM "v4l/vidioc-g-ext-ctrls.xml"> -<!ENTITY sub-g-fbuf SYSTEM "v4l/vidioc-g-fbuf.xml"> -<!ENTITY sub-g-fmt SYSTEM "v4l/vidioc-g-fmt.xml"> -<!ENTITY sub-g-frequency SYSTEM "v4l/vidioc-g-frequency.xml"> -<!ENTITY sub-g-input SYSTEM "v4l/vidioc-g-input.xml"> -<!ENTITY sub-g-jpegcomp SYSTEM "v4l/vidioc-g-jpegcomp.xml"> -<!ENTITY sub-g-modulator SYSTEM "v4l/vidioc-g-modulator.xml"> -<!ENTITY sub-g-output SYSTEM "v4l/vidioc-g-output.xml"> -<!ENTITY sub-g-parm SYSTEM "v4l/vidioc-g-parm.xml"> -<!ENTITY sub-g-priority SYSTEM "v4l/vidioc-g-priority.xml"> -<!ENTITY sub-g-sliced-vbi-cap SYSTEM "v4l/vidioc-g-sliced-vbi-cap.xml"> -<!ENTITY sub-g-std SYSTEM "v4l/vidioc-g-std.xml"> -<!ENTITY sub-g-tuner SYSTEM "v4l/vidioc-g-tuner.xml"> -<!ENTITY sub-log-status SYSTEM "v4l/vidioc-log-status.xml"> -<!ENTITY sub-overlay SYSTEM "v4l/vidioc-overlay.xml"> -<!ENTITY sub-qbuf SYSTEM "v4l/vidioc-qbuf.xml"> -<!ENTITY sub-querybuf SYSTEM "v4l/vidioc-querybuf.xml"> -<!ENTITY sub-querycap SYSTEM "v4l/vidioc-querycap.xml"> -<!ENTITY sub-queryctrl SYSTEM "v4l/vidioc-queryctrl.xml"> -<!ENTITY sub-querystd SYSTEM "v4l/vidioc-querystd.xml"> -<!ENTITY sub-reqbufs SYSTEM "v4l/vidioc-reqbufs.xml"> -<!ENTITY sub-s-hw-freq-seek SYSTEM "v4l/vidioc-s-hw-freq-seek.xml"> -<!ENTITY sub-streamon SYSTEM "v4l/vidioc-streamon.xml"> -<!ENTITY sub-subdev-enum-frame-interval SYSTEM "v4l/vidioc-subdev-enum-frame-interval.xml"> -<!ENTITY sub-subdev-enum-frame-size SYSTEM "v4l/vidioc-subdev-enum-frame-size.xml"> -<!ENTITY sub-subdev-enum-mbus-code SYSTEM "v4l/vidioc-subdev-enum-mbus-code.xml"> -<!ENTITY sub-subdev-formats SYSTEM "v4l/subdev-formats.xml"> -<!ENTITY sub-subdev-g-crop SYSTEM "v4l/vidioc-subdev-g-crop.xml"> -<!ENTITY sub-subdev-g-fmt SYSTEM "v4l/vidioc-subdev-g-fmt.xml"> -<!ENTITY sub-subdev-g-frame-interval SYSTEM "v4l/vidioc-subdev-g-frame-interval.xml"> -<!ENTITY sub-capture-c SYSTEM "v4l/capture.c.xml"> -<!ENTITY sub-keytable-c SYSTEM "v4l/keytable.c.xml"> -<!ENTITY sub-v4l2grab-c SYSTEM "v4l/v4l2grab.c.xml"> -<!ENTITY sub-videodev2-h SYSTEM "v4l/videodev2.h.xml"> -<!ENTITY sub-v4l2 SYSTEM "v4l/v4l2.xml"> -<!ENTITY sub-dqevent SYSTEM "v4l/vidioc-dqevent.xml"> -<!ENTITY sub-subscribe-event SYSTEM "v4l/vidioc-subscribe-event.xml"> -<!ENTITY sub-intro SYSTEM "dvb/intro.xml"> -<!ENTITY sub-frontend SYSTEM "dvb/frontend.xml"> -<!ENTITY sub-dvbproperty SYSTEM "dvb/dvbproperty.xml"> -<!ENTITY sub-demux SYSTEM "dvb/demux.xml"> -<!ENTITY sub-video SYSTEM "dvb/video.xml"> -<!ENTITY sub-audio SYSTEM "dvb/audio.xml"> -<!ENTITY sub-ca SYSTEM "dvb/ca.xml"> -<!ENTITY sub-net SYSTEM "dvb/net.xml"> -<!ENTITY sub-kdapi SYSTEM "dvb/kdapi.xml"> -<!ENTITY sub-examples SYSTEM "dvb/examples.xml"> -<!ENTITY sub-frontend-h SYSTEM "dvb/frontend.h.xml"> -<!ENTITY sub-dvbapi SYSTEM "dvb/dvbapi.xml"> -<!ENTITY sub-media SYSTEM "media.xml"> -<!ENTITY sub-media-entities SYSTEM "media-entities.tmpl"> -<!ENTITY sub-media-indices SYSTEM "media-indices.tmpl"> - -<!ENTITY sub-media-controller SYSTEM "v4l/media-controller.xml"> -<!ENTITY sub-media-func-open SYSTEM "v4l/media-func-open.xml"> -<!ENTITY sub-media-func-close SYSTEM "v4l/media-func-close.xml"> -<!ENTITY sub-media-func-ioctl SYSTEM "v4l/media-func-ioctl.xml"> -<!ENTITY sub-media-ioc-device-info SYSTEM "v4l/media-ioc-device-info.xml"> -<!ENTITY sub-media-ioc-enum-entities SYSTEM "v4l/media-ioc-enum-entities.xml"> -<!ENTITY sub-media-ioc-enum-links SYSTEM "v4l/media-ioc-enum-links.xml"> -<!ENTITY sub-media-ioc-setup-link SYSTEM "v4l/media-ioc-setup-link.xml"> - -<!-- Function Reference --> -<!ENTITY close SYSTEM "v4l/func-close.xml"> -<!ENTITY ioctl SYSTEM "v4l/func-ioctl.xml"> -<!ENTITY mmap SYSTEM "v4l/func-mmap.xml"> -<!ENTITY munmap SYSTEM "v4l/func-munmap.xml"> -<!ENTITY open SYSTEM "v4l/func-open.xml"> -<!ENTITY poll SYSTEM "v4l/func-poll.xml"> -<!ENTITY read SYSTEM "v4l/func-read.xml"> -<!ENTITY select SYSTEM "v4l/func-select.xml"> -<!ENTITY write SYSTEM "v4l/func-write.xml"> -<!ENTITY grey SYSTEM "v4l/pixfmt-grey.xml"> -<!ENTITY nv12 SYSTEM "v4l/pixfmt-nv12.xml"> -<!ENTITY nv12m SYSTEM "v4l/pixfmt-nv12m.xml"> -<!ENTITY nv16 SYSTEM "v4l/pixfmt-nv16.xml"> -<!ENTITY packed-rgb SYSTEM "v4l/pixfmt-packed-rgb.xml"> -<!ENTITY packed-yuv SYSTEM "v4l/pixfmt-packed-yuv.xml"> -<!ENTITY sbggr16 SYSTEM "v4l/pixfmt-sbggr16.xml"> -<!ENTITY sbggr8 SYSTEM "v4l/pixfmt-sbggr8.xml"> -<!ENTITY sgbrg8 SYSTEM "v4l/pixfmt-sgbrg8.xml"> -<!ENTITY sgrbg8 SYSTEM "v4l/pixfmt-sgrbg8.xml"> -<!ENTITY uyvy SYSTEM "v4l/pixfmt-uyvy.xml"> -<!ENTITY vyuy SYSTEM "v4l/pixfmt-vyuy.xml"> -<!ENTITY y16 SYSTEM "v4l/pixfmt-y16.xml"> -<!ENTITY y41p SYSTEM "v4l/pixfmt-y41p.xml"> -<!ENTITY yuv410 SYSTEM "v4l/pixfmt-yuv410.xml"> -<!ENTITY yuv411p SYSTEM "v4l/pixfmt-yuv411p.xml"> -<!ENTITY yuv420 SYSTEM "v4l/pixfmt-yuv420.xml"> -<!ENTITY yuv420m SYSTEM "v4l/pixfmt-yuv420m.xml"> -<!ENTITY yuv422p SYSTEM "v4l/pixfmt-yuv422p.xml"> -<!ENTITY yuyv SYSTEM "v4l/pixfmt-yuyv.xml"> -<!ENTITY yvyu SYSTEM "v4l/pixfmt-yvyu.xml"> -<!ENTITY srggb10 SYSTEM "v4l/pixfmt-srggb10.xml"> -<!ENTITY srggb8 SYSTEM "v4l/pixfmt-srggb8.xml"> -<!ENTITY y10 SYSTEM "v4l/pixfmt-y10.xml"> -<!ENTITY cropcap SYSTEM "v4l/vidioc-cropcap.xml"> -<!ENTITY dbg-g-register SYSTEM "v4l/vidioc-dbg-g-register.xml"> -<!ENTITY encoder-cmd SYSTEM "v4l/vidioc-encoder-cmd.xml"> -<!ENTITY enum-fmt SYSTEM "v4l/vidioc-enum-fmt.xml"> -<!ENTITY enum-frameintervals SYSTEM "v4l/vidioc-enum-frameintervals.xml"> -<!ENTITY enum-framesizes SYSTEM "v4l/vidioc-enum-framesizes.xml"> -<!ENTITY enumaudio SYSTEM "v4l/vidioc-enumaudio.xml"> -<!ENTITY enumaudioout SYSTEM "v4l/vidioc-enumaudioout.xml"> -<!ENTITY enuminput SYSTEM "v4l/vidioc-enuminput.xml"> -<!ENTITY enumoutput SYSTEM "v4l/vidioc-enumoutput.xml"> -<!ENTITY enum-dv-presets SYSTEM "v4l/vidioc-enum-dv-presets.xml"> -<!ENTITY g-dv-preset SYSTEM "v4l/vidioc-g-dv-preset.xml"> -<!ENTITY query-dv-preset SYSTEM "v4l/vidioc-query-dv-preset.xml"> -<!ENTITY g-dv-timings SYSTEM "v4l/vidioc-g-dv-timings.xml"> -<!ENTITY enumstd SYSTEM "v4l/vidioc-enumstd.xml"> -<!ENTITY g-audio SYSTEM "v4l/vidioc-g-audio.xml"> -<!ENTITY g-audioout SYSTEM "v4l/vidioc-g-audioout.xml"> -<!ENTITY dbg-g-chip-ident SYSTEM "v4l/vidioc-dbg-g-chip-ident.xml"> -<!ENTITY g-crop SYSTEM "v4l/vidioc-g-crop.xml"> -<!ENTITY g-ctrl SYSTEM "v4l/vidioc-g-ctrl.xml"> -<!ENTITY g-enc-index SYSTEM "v4l/vidioc-g-enc-index.xml"> -<!ENTITY g-ext-ctrls SYSTEM "v4l/vidioc-g-ext-ctrls.xml"> -<!ENTITY g-fbuf SYSTEM "v4l/vidioc-g-fbuf.xml"> -<!ENTITY g-fmt SYSTEM "v4l/vidioc-g-fmt.xml"> -<!ENTITY g-frequency SYSTEM "v4l/vidioc-g-frequency.xml"> -<!ENTITY g-input SYSTEM "v4l/vidioc-g-input.xml"> -<!ENTITY g-jpegcomp SYSTEM "v4l/vidioc-g-jpegcomp.xml"> -<!ENTITY g-modulator SYSTEM "v4l/vidioc-g-modulator.xml"> -<!ENTITY g-output SYSTEM "v4l/vidioc-g-output.xml"> -<!ENTITY g-parm SYSTEM "v4l/vidioc-g-parm.xml"> -<!ENTITY g-priority SYSTEM "v4l/vidioc-g-priority.xml"> -<!ENTITY g-sliced-vbi-cap SYSTEM "v4l/vidioc-g-sliced-vbi-cap.xml"> -<!ENTITY g-std SYSTEM "v4l/vidioc-g-std.xml"> -<!ENTITY g-tuner SYSTEM "v4l/vidioc-g-tuner.xml"> -<!ENTITY log-status SYSTEM "v4l/vidioc-log-status.xml"> -<!ENTITY overlay SYSTEM "v4l/vidioc-overlay.xml"> -<!ENTITY qbuf SYSTEM "v4l/vidioc-qbuf.xml"> -<!ENTITY querybuf SYSTEM "v4l/vidioc-querybuf.xml"> -<!ENTITY querycap SYSTEM "v4l/vidioc-querycap.xml"> -<!ENTITY queryctrl SYSTEM "v4l/vidioc-queryctrl.xml"> -<!ENTITY querystd SYSTEM "v4l/vidioc-querystd.xml"> -<!ENTITY reqbufs SYSTEM "v4l/vidioc-reqbufs.xml"> -<!ENTITY s-hw-freq-seek SYSTEM "v4l/vidioc-s-hw-freq-seek.xml"> -<!ENTITY streamon SYSTEM "v4l/vidioc-streamon.xml"> -<!ENTITY dqevent SYSTEM "v4l/vidioc-dqevent.xml"> -<!ENTITY subscribe_event SYSTEM "v4l/vidioc-subscribe-event.xml"> diff --git a/Documentation/DocBook/media-indices.tmpl b/Documentation/DocBook/media-indices.tmpl deleted file mode 100644 index 78d6031de00..00000000000 --- a/Documentation/DocBook/media-indices.tmpl +++ /dev/null @@ -1,89 +0,0 @@ -<!-- Generated file! Do not edit. --> - -<index><title>List of Types</title> -<indexentry><primaryie><link linkend='v4l2-std-id'>v4l2_std_id</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-buf-type'>v4l2_buf_type</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-colorspace'>v4l2_colorspace</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-ctrl-type'>v4l2_ctrl_type</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-exposure-auto-type'>v4l2_exposure_auto_type</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-field'>v4l2_field</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-frmivaltypes'>v4l2_frmivaltypes</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-frmsizetypes'>v4l2_frmsizetypes</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-memory'>v4l2_memory</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-audio-ac3-bitrate'>v4l2_mpeg_audio_ac3_bitrate</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-audio-crc'>v4l2_mpeg_audio_crc</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-audio-emphasis'>v4l2_mpeg_audio_emphasis</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-audio-encoding'>v4l2_mpeg_audio_encoding</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-audio-l1-bitrate'>v4l2_mpeg_audio_l1_bitrate</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-audio-l2-bitrate'>v4l2_mpeg_audio_l2_bitrate</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-audio-l3-bitrate'>v4l2_mpeg_audio_l3_bitrate</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-audio-mode'>v4l2_mpeg_audio_mode</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-audio-mode-extension'>v4l2_mpeg_audio_mode_extension</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-audio-sampling-freq'>v4l2_mpeg_audio_sampling_freq</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='chroma-spatial-filter-type'>v4l2_mpeg_cx2341x_video_chroma_spatial_filter_type</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='luma-spatial-filter-type'>v4l2_mpeg_cx2341x_video_luma_spatial_filter_type</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-cx2341x-video-median-filter-type'>v4l2_mpeg_cx2341x_video_median_filter_type</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-cx2341x-video-spatial-filter-mode'>v4l2_mpeg_cx2341x_video_spatial_filter_mode</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-cx2341x-video-temporal-filter-mode'>v4l2_mpeg_cx2341x_video_temporal_filter_mode</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-stream-type'>v4l2_mpeg_stream_type</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-stream-vbi-fmt'>v4l2_mpeg_stream_vbi_fmt</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-video-aspect'>v4l2_mpeg_video_aspect</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-video-bitrate-mode'>v4l2_mpeg_video_bitrate_mode</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-mpeg-video-encoding'>v4l2_mpeg_video_encoding</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-power-line-frequency'>v4l2_power_line_frequency</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-priority'>v4l2_priority</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-tuner-type'>v4l2_tuner_type</link></primaryie></indexentry> -<indexentry><primaryie>enum <link linkend='v4l2-preemphasis'>v4l2_preemphasis</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-audio'>v4l2_audio</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-audioout'>v4l2_audioout</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-bt-timings'>v4l2_bt_timings</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-buffer'>v4l2_buffer</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-capability'>v4l2_capability</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-captureparm'>v4l2_captureparm</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-clip'>v4l2_clip</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-control'>v4l2_control</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-crop'>v4l2_crop</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-cropcap'>v4l2_cropcap</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-dbg-chip-ident'>v4l2_dbg_chip_ident</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-dbg-match'>v4l2_dbg_match</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-dbg-register'>v4l2_dbg_register</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-dv-enum-preset'>v4l2_dv_enum_preset</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-dv-preset'>v4l2_dv_preset</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-dv-timings'>v4l2_dv_timings</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-enc-idx'>v4l2_enc_idx</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-enc-idx-entry'>v4l2_enc_idx_entry</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-encoder-cmd'>v4l2_encoder_cmd</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-ext-control'>v4l2_ext_control</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-ext-controls'>v4l2_ext_controls</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-fmtdesc'>v4l2_fmtdesc</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-format'>v4l2_format</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-fract'>v4l2_fract</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-framebuffer'>v4l2_framebuffer</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-frequency'>v4l2_frequency</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-frmival-stepwise'>v4l2_frmival_stepwise</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-frmivalenum'>v4l2_frmivalenum</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-frmsize-discrete'>v4l2_frmsize_discrete</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-frmsize-stepwise'>v4l2_frmsize_stepwise</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-frmsizeenum'>v4l2_frmsizeenum</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-hw-freq-seek'>v4l2_hw_freq_seek</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-input'>v4l2_input</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-jpegcompression'>v4l2_jpegcompression</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-modulator'>v4l2_modulator</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-mpeg-vbi-fmt-ivtv'>v4l2_mpeg_vbi_fmt_ivtv</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-output'>v4l2_output</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-outputparm'>v4l2_outputparm</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-pix-format'>v4l2_pix_format</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-queryctrl'>v4l2_queryctrl</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-querymenu'>v4l2_querymenu</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-rect'>v4l2_rect</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-requestbuffers'>v4l2_requestbuffers</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-sliced-vbi-cap'>v4l2_sliced_vbi_cap</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-sliced-vbi-data'>v4l2_sliced_vbi_data</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-sliced-vbi-format'>v4l2_sliced_vbi_format</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-standard'>v4l2_standard</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-streamparm'>v4l2_streamparm</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-timecode'>v4l2_timecode</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-tuner'>v4l2_tuner</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-vbi-format'>v4l2_vbi_format</link></primaryie></indexentry> -<indexentry><primaryie>struct <link linkend='v4l2-window'>v4l2_window</link></primaryie></indexentry> -</index> diff --git a/Documentation/DocBook/media/Makefile b/Documentation/DocBook/media/Makefile new file mode 100644 index 00000000000..6628b4b9cac --- /dev/null +++ b/Documentation/DocBook/media/Makefile @@ -0,0 +1,386 @@ +### +# Media build rules - Auto-generates media contents/indexes and *.h xml's +# + +SHELL=/bin/bash + +MEDIA_OBJ_DIR=$(objtree)/Documentation/DocBook/ +MEDIA_SRC_DIR=$(srctree)/Documentation/DocBook/media + +MEDIA_TEMP = media-entities.tmpl \ + media-indices.tmpl \ + videodev2.h.xml \ + v4l2.xml \ + audio.h.xml \ + ca.h.xml \ + dmx.h.xml \ + frontend.h.xml \ + net.h.xml \ + video.h.xml \ + +IMGFILES := $(patsubst %.b64,%, $(notdir $(shell ls $(MEDIA_SRC_DIR)/*.b64))) +OBJIMGFILES := $(addprefix $(MEDIA_OBJ_DIR)/, $(IMGFILES)) +GENFILES := $(addprefix $(MEDIA_OBJ_DIR)/, $(MEDIA_TEMP)) + +PHONY += cleanmediadocs + +cleanmediadocs: + -@rm `find $(MEDIA_OBJ_DIR) -type l` $(GENFILES) $(OBJIMGFILES) 2>/dev/null + +$(obj)/media_api.xml: $(GENFILES) FORCE + +#$(MEDIA_OBJ_DIR)/media_api.html: $(MEDIA_OBJ_DIR)/media_api.xml +#$(MEDIA_OBJ_DIR)/media_api.pdf: $(MEDIA_OBJ_DIR)/media_api.xml +#$(MEDIA_OBJ_DIR)/media_api.ps: $(MEDIA_OBJ_DIR)/media_api.xml + +V4L_SGMLS = \ + $(shell ls $(MEDIA_SRC_DIR)/v4l/*.xml|perl -ne 'print "$$1 " if (m,.*/(.*)\n,)') \ + capture.c.xml \ + keytable.c.xml \ + v4l2grab.c.xml + +DVB_SGMLS = \ + $(shell ls $(MEDIA_SRC_DIR)/dvb/*.xml|perl -ne 'print "$$1 " if (m,.*/(.*)\n,)') + +MEDIA_SGMLS = $(addprefix ./,$(V4L_SGMLS)) $(addprefix ./,$(DVB_SGMLS)) $(addprefix ./,$(MEDIA_TEMP)) + +FUNCS = \ + close \ + ioctl \ + mmap \ + munmap \ + open \ + poll \ + read \ + select \ + write \ + +IOCTLS = \ + $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/videodev2.h) \ + $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/audio.h) \ + $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/ca.h) \ + $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/dmx.h) \ + $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/frontend.h) \ + $(shell perl -ne 'print "$$1 " if /\#define\s+([A-Z][^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/net.h) \ + $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/dvb/video.h) \ + $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/media.h) \ + $(shell perl -ne 'print "$$1 " if /\#define\s+([^\s]+)\s+_IO/' $(srctree)/include/linux/v4l2-subdev.h) \ + VIDIOC_SUBDEV_G_FRAME_INTERVAL \ + VIDIOC_SUBDEV_S_FRAME_INTERVAL \ + VIDIOC_SUBDEV_ENUM_MBUS_CODE \ + VIDIOC_SUBDEV_ENUM_FRAME_SIZE \ + VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL \ + +TYPES = \ + $(shell perl -ne 'print "$$1 " if /^typedef\s+[^\s]+\s+([^\s]+)\;/' $(srctree)/include/linux/videodev2.h) \ + $(shell perl -ne 'print "$$1 " if /^}\s+([a-z0-9_]+_t)/' $(srctree)/include/linux/dvb/frontend.h) + +ENUMS = \ + $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/videodev2.h) \ + $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/audio.h) \ + $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/ca.h) \ + $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/dmx.h) \ + $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/frontend.h) \ + $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/net.h) \ + $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/dvb/video.h) \ + $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/media.h) \ + $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/v4l2-mediabus.h) \ + $(shell perl -ne 'print "$$1 " if /^enum\s+([^\s]+)\s+/' $(srctree)/include/linux/v4l2-subdev.h) + +STRUCTS = \ + $(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/linux/videodev2.h) \ + $(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s\{]+)\s*/)' $(srctree)/include/linux/dvb/audio.h) \ + $(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/linux/dvb/ca.h) \ + $(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/linux/dvb/dmx.h) \ + $(shell perl -ne 'print "$$1 " if (!/dtv\_cmds\_h/ && /^struct\s+([^\s]+)\s+/)' $(srctree)/include/linux/dvb/frontend.h) \ + $(shell perl -ne 'print "$$1 " if (/^struct\s+([A-Z][^\s]+)\s+/)' $(srctree)/include/linux/dvb/net.h) \ + $(shell perl -ne 'print "$$1 " if (/^struct\s+([^\s]+)\s+/)' $(srctree)/include/linux/dvb/video.h) \ + $(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/linux/media.h) \ + $(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/linux/v4l2-subdev.h) \ + $(shell perl -ne 'print "$$1 " if /^struct\s+([^\s]+)\s+/' $(srctree)/include/linux/v4l2-mediabus.h) + +ERRORS = \ + E2BIG \ + EACCES \ + EAGAIN \ + EBADF \ + EBADFD \ + EBADR \ + EBADRQC \ + EBUSY \ + ECHILD \ + ECONNRESET \ + EDEADLK \ + EDOM \ + EEXIST \ + EFAULT \ + EFBIG \ + EILSEQ \ + EINIT \ + EINPROGRESS \ + EINTR \ + EINVAL \ + EIO \ + EMFILE \ + ENFILE \ + ENOBUFS \ + ENODATA \ + ENODEV \ + ENOENT \ + ENOIOCTLCMD \ + ENOMEM \ + ENOSPC \ + ENOSR \ + ENOSYS \ + ENOTSUP \ + ENOTSUPP \ + ENOTTY \ + ENXIO \ + EOPNOTSUPP \ + EOVERFLOW \ + EPERM \ + EPIPE \ + EPROTO \ + ERANGE \ + EREMOTE \ + EREMOTEIO \ + ERESTART \ + ERESTARTSYS \ + ESHUTDOWN \ + ESPIPE \ + ETIME \ + ETIMEDOUT \ + EUSERS \ + EWOULDBLOCK \ + EXDEV \ + +ESCAPE = \ + -e "s/&/\\&/g" \ + -e "s/</\\</g" \ + -e "s/>/\\>/g" + +FILENAME = \ + -e s,"^[^\/]*/",, \ + -e s/"\\.xml"// \ + -e s/"\\.tmpl"// \ + -e s/\\\./-/g \ + -e s/"^func-"// \ + -e s/"^pixfmt-"// \ + -e s/"^vidioc-"// + +# Generate references to these structs in videodev2.h.xml. +DOCUMENTED = \ + -e "s/\(enum *\)v4l2_mpeg_cx2341x_video_\([a-z]*_spatial_filter_type\)/\1<link linkend=\"\2\">v4l2_mpeg_cx2341x_video_\2<\/link>/g" \ + -e "s/\(\(enum\|struct\) *\)\(v4l2_[a-zA-Z0-9_]*\)/\1<link linkend=\"\3\">\3<\/link>/g" \ + -e "s/\(V4L2_PIX_FMT_[A-Z0-9_]\+\) /<link linkend=\"\1\">\1<\/link> /g" \ + -e ":a;s/\(linkend=\".*\)_\(.*\">\)/\1-\2/;ta" \ + -e "s/v4l2\-mpeg\-vbi\-ITV0/v4l2-mpeg-vbi-itv0-1/g" + +DVB_DOCUMENTED = \ + -e "s/\(linkend\=\"\)FE_SET_PROPERTY/\1FE_GET_PROPERTY/g" \ + -e "s,\(struct\s\+\)\([a-z0-9_]\+\)\(\s\+{\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \ + -e "s,\(}\s\+\)\([a-z0-9_]\+_t\+\),\1\<link linkend=\"\2\">\2\<\/link\>,g" \ + -e "s,\(define\s\+\)\(DTV_[A-Z0-9_]\+\)\(\s\+[0-9]\+\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \ + -e "s,<link\s\+linkend=\".*\">\(DTV_IOCTL_MAX_MSGS\|dtv_cmds_h\|__.*_old\)<\/link>,\1,g" \ + -e ":a;s/\(linkend=\".*\)_\(.*\">\)/\1-\2/;ta" \ + -e "s,\(audio-mixer\|audio-karaoke\|audio-status\|ca-slot-info\|ca-descr-info\|ca-caps\|ca-msg\|ca-descr\|ca-pid\|dmx-filter\|dmx-caps\|video-system\|video-highlight\|video-spu\|video-spu-palette\|video-navi-pack\)-t,\1,g" \ + -e "s,DTV-ISDBT-LAYER[A-C],DTV-ISDBT-LAYER,g" \ + -e "s,\(define\s\+\)\([A-Z0-9_]\+\)\(\s\+_IO\),\1\<link linkend=\"\2\">\2\<\/link\>\3,g" \ + -e "s,<link\s\+linkend=\".*\">\(__.*_OLD\)<\/link>,\1,g" \ + +# +# Media targets and dependencies +# + +install_media_images = \ + $(Q)cp $(OBJIMGFILES) $(MEDIA_OBJ_DIR)/media_api + +$(MEDIA_OBJ_DIR)/%: $(MEDIA_SRC_DIR)/%.b64 + $(Q)base64 -d $< >$@ + +$(MEDIA_OBJ_DIR)/v4l2.xml: $(OBJIMGFILES) + @$($(quiet)gen_xml) + @(ln -sf $(MEDIA_SRC_DIR)/v4l/*xml $(MEDIA_OBJ_DIR)/) + @(ln -sf $(MEDIA_SRC_DIR)/dvb/*xml $(MEDIA_OBJ_DIR)/) + +$(MEDIA_OBJ_DIR)/videodev2.h.xml: $(srctree)/include/linux/videodev2.h $(MEDIA_OBJ_DIR)/v4l2.xml + @$($(quiet)gen_xml) + @( \ + echo "<programlisting>") > $@ + @( \ + expand --tabs=8 < $< | \ + sed $(ESCAPE) $(DOCUMENTED) | \ + sed 's/i\.e\./&ie;/') >> $@ + @( \ + echo "</programlisting>") >> $@ + +$(MEDIA_OBJ_DIR)/audio.h.xml: $(srctree)/include/linux/dvb/audio.h $(MEDIA_OBJ_DIR)/v4l2.xml + @$($(quiet)gen_xml) + @( \ + echo "<programlisting>") > $@ + @( \ + expand --tabs=8 < $< | \ + sed $(ESCAPE) $(DVB_DOCUMENTED) | \ + sed 's/i\.e\./&ie;/') >> $@ + @( \ + echo "</programlisting>") >> $@ + +$(MEDIA_OBJ_DIR)/ca.h.xml: $(srctree)/include/linux/dvb/ca.h $(MEDIA_OBJ_DIR)/v4l2.xml + @$($(quiet)gen_xml) + @( \ + echo "<programlisting>") > $@ + @( \ + expand --tabs=8 < $< | \ + sed $(ESCAPE) $(DVB_DOCUMENTED) | \ + sed 's/i\.e\./&ie;/') >> $@ + @( \ + echo "</programlisting>") >> $@ + +$(MEDIA_OBJ_DIR)/dmx.h.xml: $(srctree)/include/linux/dvb/dmx.h $(MEDIA_OBJ_DIR)/v4l2.xml + @$($(quiet)gen_xml) + @( \ + echo "<programlisting>") > $@ + @( \ + expand --tabs=8 < $< | \ + sed $(ESCAPE) $(DVB_DOCUMENTED) | \ + sed 's/i\.e\./&ie;/') >> $@ + @( \ + echo "</programlisting>") >> $@ + +$(MEDIA_OBJ_DIR)/frontend.h.xml: $(srctree)/include/linux/dvb/frontend.h $(MEDIA_OBJ_DIR)/v4l2.xml + @$($(quiet)gen_xml) + @( \ + echo "<programlisting>") > $@ + @( \ + expand --tabs=8 < $< | \ + sed $(ESCAPE) $(DVB_DOCUMENTED) | \ + sed 's/i\.e\./&ie;/') >> $@ + @( \ + echo "</programlisting>") >> $@ + +$(MEDIA_OBJ_DIR)/net.h.xml: $(srctree)/include/linux/dvb/net.h $(MEDIA_OBJ_DIR)/v4l2.xml + @$($(quiet)gen_xml) + @( \ + echo "<programlisting>") > $@ + @( \ + expand --tabs=8 < $< | \ + sed $(ESCAPE) $(DVB_DOCUMENTED) | \ + sed 's/i\.e\./&ie;/') >> $@ + @( \ + echo "</programlisting>") >> $@ + +$(MEDIA_OBJ_DIR)/video.h.xml: $(srctree)/include/linux/dvb/video.h $(MEDIA_OBJ_DIR)/v4l2.xml + @$($(quiet)gen_xml) + @( \ + echo "<programlisting>") > $@ + @( \ + expand --tabs=8 < $< | \ + sed $(ESCAPE) $(DVB_DOCUMENTED) | \ + sed 's/i\.e\./&ie;/') >> $@ + @( \ + echo "</programlisting>") >> $@ + +$(MEDIA_OBJ_DIR)/media-entities.tmpl: $(MEDIA_OBJ_DIR)/v4l2.xml + @$($(quiet)gen_xml) + @( \ + echo "<!-- Generated file! Do not edit. -->") >$@ + @( \ + echo -e "\n<!-- Functions -->") >>$@ + @( \ + for ident in $(FUNCS) ; do \ + entity=`echo $$ident | tr _ -` ; \ + echo "<!ENTITY func-$$entity \"<link" \ + "linkend='func-$$entity'><function>$$ident()</function></link>\">" \ + >>$@ ; \ + done) + @( \ + echo -e "\n<!-- Ioctls -->") >>$@ + @( \ + for ident in $(IOCTLS) ; do \ + entity=`echo $$ident | tr _ -` ; \ + id=`grep "<refname>$$ident" $(MEDIA_OBJ_DIR)/vidioc-*.xml | sed -r s,"^.*/(.*).xml.*","\1",` ; \ + echo "<!ENTITY $$entity \"<link" \ + "linkend='$$id'><constant>$$ident</constant></link>\">" \ + >>$@ ; \ + done) + @( \ + echo -e "\n<!-- Types -->") >>$@ + @( \ + for ident in $(TYPES) ; do \ + entity=`echo $$ident | tr _ -` ; \ + echo "<!ENTITY $$entity \"<link" \ + "linkend='$$entity'>$$ident</link>\">" >>$@ ; \ + done) + @( \ + echo -e "\n<!-- Enums -->") >>$@ + @( \ + for ident in $(ENUMS) ; do \ + entity=`echo $$ident | sed -e "s/v4l2_mpeg_cx2341x_video_\([a-z]*_spatial_filter_type\)/\1/" | tr _ -` ; \ + echo "<!ENTITY $$entity \"enum <link" \ + "linkend='$$entity'>$$ident</link>\">" >>$@ ; \ + done) + @( \ + echo -e "\n<!-- Structures -->") >>$@ + @( \ + for ident in $(STRUCTS) ; do \ + entity=`echo $$ident | tr _ - | sed s/v4l2-mpeg-vbi-ITV0/v4l2-mpeg-vbi-itv0-1/g` ; \ + echo "<!ENTITY $$entity \"struct <link" \ + "linkend='$$entity'>$$ident</link>\">" >>$@ ; \ + done) + @( \ + echo -e "\n<!-- Error Codes -->") >>$@ + @( \ + for ident in $(ERRORS) ; do \ + echo "<!ENTITY $$ident \"<errorcode>$$ident</errorcode>" \ + "error code\">" >>$@ ; \ + done) + @( \ + echo -e "\n<!-- Subsections -->") >>$@ + @( \ + for file in $(MEDIA_SGMLS) ; do \ + entity=`echo "$$file" | sed $(FILENAME) -e s/"^([^-]*)"/sub\1/` ; \ + if ! echo "$$file" | \ + grep -q -E -e '^(func|vidioc|pixfmt)-' ; then \ + echo "<!ENTITY sub-$$entity SYSTEM \"$$file\">" >>$@ ; \ + fi ; \ + done) + @( \ + echo -e "\n<!-- Function Reference -->") >>$@ + @( \ + for file in $(MEDIA_SGMLS) ; do \ + if echo "$$file" | \ + grep -q -E -e '(func|vidioc|pixfmt)-' ; then \ + entity=`echo "$$file" |sed $(FILENAME)` ; \ + echo "<!ENTITY $$entity SYSTEM \"$$file\">" >>$@ ; \ + fi ; \ + done) + +# Jade can auto-generate a list-of-tables, which includes all structs, +# but we only want data types, all types, and sorted please. +$(MEDIA_OBJ_DIR)/media-indices.tmpl: $(MEDIA_OBJ_DIR)/v4l2.xml + @$($(quiet)gen_xml) + @( \ + echo "<!-- Generated file! Do not edit. -->") >$@ + @( \ + echo -e "\n<index><title>List of Types</title>") >>$@ + @( \ + for ident in $(TYPES) ; do \ + id=`echo $$ident | tr _ -` ; \ + echo "<indexentry><primaryie><link" \ + "linkend='$$id'>$$ident</link></primaryie></indexentry>" >>$@ ; \ + done) + @( \ + for ident in $(ENUMS) ; do \ + id=`echo $$ident | sed -e "s/v4l2_mpeg_cx2341x_video_\([a-z]*_spatial_filter_type\)/\1/" | tr _ -`; \ + echo "<indexentry><primaryie>enum <link" \ + "linkend='$$id'>$$ident</link></primaryie></indexentry>" >>$@ ; \ + done) + @( \ + for ident in $(STRUCTS) ; do \ + id=`echo $$ident | tr _ - | sed s/v4l2-mpeg-vbi-ITV0/v4l2-mpeg-vbi-itv0-1/g` ; \ + echo "<indexentry><primaryie>struct <link" \ + "linkend='$$id'>$$ident</link></primaryie></indexentry>" >>$@ ; \ + done) + @( \ + echo "</index>") >>$@ + diff --git a/Documentation/DocBook/media/bayer.png.b64 b/Documentation/DocBook/media/bayer.png.b64 new file mode 100644 index 00000000000..ccdf2bcda95 --- /dev/null +++ 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+2iNW3985XeFh4mLjY+Rk5WUeYOdn6Gjpaepq62vsbO1t7m7vb/Bw8XHycvNz9HT1dfZ293f4ePl5 ++nr7e/x8/X3+G37/f4ABBQ4kWNDgQYQJFS5k2NDhQ4gRJdKLAAA7 diff --git a/Documentation/DocBook/dvb/.gitignore b/Documentation/DocBook/media/dvb/.gitignore index d7ec32eafac..d7ec32eafac 100644 --- a/Documentation/DocBook/dvb/.gitignore +++ b/Documentation/DocBook/media/dvb/.gitignore diff --git a/Documentation/DocBook/dvb/audio.xml b/Documentation/DocBook/media/dvb/audio.xml index eeb96b8a086..d6438623720 100644 --- a/Documentation/DocBook/dvb/audio.xml +++ b/Documentation/DocBook/media/dvb/audio.xml @@ -14,17 +14,17 @@ the omission of the audio and video device. audio device. </para> -<section id="audio_stream_source_t"> +<section id="audio-stream-source-t"> <title>audio_stream_source_t</title> <para>The audio stream source is set through the AUDIO_SELECT_SOURCE call and can take the following values, depending on whether we are replaying from an internal (demux) or external (user write) source. </para> <programlisting> - typedef enum { - AUDIO_SOURCE_DEMUX, - AUDIO_SOURCE_MEMORY - } audio_stream_source_t; +typedef enum { + AUDIO_SOURCE_DEMUX, + AUDIO_SOURCE_MEMORY +} audio_stream_source_t; </programlisting> <para>AUDIO_SOURCE_DEMUX selects the demultiplexer (fed either by the frontend or the DVR device) as the source of the video stream. If AUDIO_SOURCE_MEMORY @@ -33,61 +33,64 @@ call. </para> </section> -<section id="audio_play_state_t"> +<section id="audio-play-state-t"> <title>audio_play_state_t</title> <para>The following values can be returned by the AUDIO_GET_STATUS call representing the state of audio playback. </para> <programlisting> - typedef enum { - AUDIO_STOPPED, - AUDIO_PLAYING, - AUDIO_PAUSED - } audio_play_state_t; +typedef enum { + AUDIO_STOPPED, + AUDIO_PLAYING, + AUDIO_PAUSED +} audio_play_state_t; </programlisting> </section> -<section id="audio_channel_select_t"> +<section id="audio-channel-select-t"> <title>audio_channel_select_t</title> <para>The audio channel selected via AUDIO_CHANNEL_SELECT is determined by the following values. </para> <programlisting> - typedef enum { - AUDIO_STEREO, - AUDIO_MONO_LEFT, - AUDIO_MONO_RIGHT, - } audio_channel_select_t; +typedef enum { + AUDIO_STEREO, + AUDIO_MONO_LEFT, + AUDIO_MONO_RIGHT, + AUDIO_MONO, + AUDIO_STEREO_SWAPPED +} audio_channel_select_t; </programlisting> </section> -<section id="struct_audio_status"> +<section id="audio-status"> <title>struct audio_status</title> <para>The AUDIO_GET_STATUS call returns the following structure informing about various states of the playback operation. </para> <programlisting> - typedef struct audio_status { - boolean AV_sync_state; - boolean mute_state; - audio_play_state_t play_state; - audio_stream_source_t stream_source; - audio_channel_select_t channel_select; - boolean bypass_mode; - } audio_status_t; +typedef struct audio_status { + boolean AV_sync_state; + boolean mute_state; + audio_play_state_t play_state; + audio_stream_source_t stream_source; + audio_channel_select_t channel_select; + boolean bypass_mode; + audio_mixer_t mixer_state; +} audio_status_t; </programlisting> </section> -<section id="struct_audio_mixer"> +<section id="audio-mixer"> <title>struct audio_mixer</title> <para>The following structure is used by the AUDIO_SET_MIXER call to set the audio volume. </para> <programlisting> - typedef struct audio_mixer { - unsigned int volume_left; - unsigned int volume_right; - } audio_mixer_t; +typedef struct audio_mixer { + unsigned int volume_left; + unsigned int volume_right; +} audio_mixer_t; </programlisting> </section> @@ -109,17 +112,17 @@ bits set according to the hardwares capabilities. </programlisting> </section> -<section id="struct_audio_karaoke"> +<section id="audio-karaoke"> <title>struct audio_karaoke</title> <para>The ioctl AUDIO_SET_KARAOKE uses the following format: </para> <programlisting> - typedef - struct audio_karaoke{ - int vocal1; - int vocal2; - int melody; - } audio_karaoke_t; +typedef +struct audio_karaoke { + int vocal1; + int vocal2; + int melody; +} audio_karaoke_t; </programlisting> <para>If Vocal1 or Vocal2 are non-zero, they get mixed into left and right t at 70% each. If both, Vocal1 and Vocal2 are non-zero, Vocal1 gets mixed into the left channel and Vocal2 into the @@ -128,7 +131,7 @@ and right. </para> </section> -<section id="audio_attributes"> +<section id="audio-attributes-t"> <title>audio attributes</title> <para>The following attributes can be set by a call to AUDIO_SET_ATTRIBUTES: </para> @@ -217,8 +220,7 @@ and right. <para>(blocking mode is the default)</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +<para>RETURN VALUE</para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> <para>ENODEV</para> @@ -228,13 +230,6 @@ and right. </entry> </row><row><entry align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> <para>EBUSY</para> </entry><entry align="char"> @@ -276,8 +271,7 @@ and right. <para>File descriptor returned by a previous call to open().</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +<para>RETURN VALUE</para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> <para>EBADF</para> @@ -332,8 +326,7 @@ and right. <para>Size of buf.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +<para>RETURN VALUE</para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> <para>EPERM</para> @@ -358,7 +351,7 @@ and right. </entry> </row></tbody></tgroup></informaltable> -</section><section +</section><section id="AUDIO_STOP" role="subsection"><title>AUDIO_STOP</title> <para>DESCRIPTION </para> @@ -391,25 +384,9 @@ role="subsection"><title>AUDIO_STOP</title> <para>Equals AUDIO_STOP for this command.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="AUDIO_PLAY" role="subsection"><title>AUDIO_PLAY</title> <para>DESCRIPTION </para> @@ -443,25 +420,9 @@ role="subsection"><title>AUDIO_PLAY</title> <para>Equals AUDIO_PLAY for this command.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="AUDIO_PAUSE" role="subsection"><title>AUDIO_PAUSE</title> <para>DESCRIPTION </para> @@ -503,25 +464,49 @@ role="subsection"><title>AUDIO_PAUSE</title> <para>Equals AUDIO_PAUSE for this command.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS +&return-value-dvb; + +</section><section id="AUDIO_CONTINUE" +role="subsection"><title>AUDIO_CONTINUE</title> +<para>DESCRIPTION +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>This ioctl restarts the decoding and playing process previously paused +with AUDIO_PAUSE command.</para> +</entry> + </row><row><entry + align="char"> +<para>It only works if the stream were previously stopped with AUDIO_PAUSE</para> +</entry> + </row></tbody></tgroup></informaltable> +<para>SYNOPSIS +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>int ioctl(int fd, int request = AUDIO_CONTINUE);</para> +</entry> + </row></tbody></tgroup></informaltable> +<para>PARAMETERS </para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> +<para>int fd</para> </entry><entry align="char"> -<para>fd is not a valid open file descriptor.</para> +<para>File descriptor returned by a previous call to open().</para> </entry> </row><row><entry align="char"> -<para>EINTERNAL</para> +<para>int request</para> </entry><entry align="char"> -<para>Internal error.</para> +<para>Equals AUDIO_CONTINUE for this command.</para> </entry> </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="AUDIO_SELECT_SOURCE" role="subsection"><title>AUDIO_SELECT_SOURCE</title> <para>DESCRIPTION </para> @@ -567,32 +552,9 @@ role="subsection"><title>AUDIO_SELECT_SOURCE</title> stream.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Illegal input parameter.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="AUDIO_SET_MUTE" role="subsection"><title>AUDIO_SET_MUTE</title> <para>DESCRIPTION </para> @@ -646,32 +608,9 @@ role="subsection"><title>AUDIO_SET_MUTE</title> <para>FALSE Audio Un-mute</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Illegal input parameter.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="AUDIO_SET_AV_SYNC" role="subsection"><title>AUDIO_SET_AV_SYNC</title> <para>DESCRIPTION </para> @@ -725,32 +664,9 @@ role="subsection"><title>AUDIO_SET_AV_SYNC</title> <para>FALSE AV-sync OFF</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Illegal input parameter.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="AUDIO_SET_BYPASS_MODE" role="subsection"><title>AUDIO_SET_BYPASS_MODE</title> <para>DESCRIPTION </para> @@ -808,32 +724,9 @@ role="subsection"><title>AUDIO_SET_BYPASS_MODE</title> <para>FALSE Bypass is enabled</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Illegal input parameter.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="AUDIO_CHANNEL_SELECT" role="subsection"><title>AUDIO_CHANNEL_SELECT</title> <para>DESCRIPTION </para> @@ -877,32 +770,9 @@ role="subsection"><title>AUDIO_CHANNEL_SELECT</title> stereo).</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Illegal input parameter ch.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="AUDIO_GET_STATUS" role="subsection"><title>AUDIO_GET_STATUS</title> <para>DESCRIPTION </para> @@ -945,32 +815,9 @@ role="subsection"><title>AUDIO_GET_STATUS</title> <para>Returns the current state of Audio Device.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>status points to invalid address.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="AUDIO_GET_CAPABILITIES" role="subsection"><title>AUDIO_GET_CAPABILITIES</title> <para>DESCRIPTION </para> @@ -1013,32 +860,9 @@ role="subsection"><title>AUDIO_GET_CAPABILITIES</title> <para>Returns a bit array of supported sound formats.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>cap points to an invalid address.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="AUDIO_CLEAR_BUFFER" role="subsection"><title>AUDIO_CLEAR_BUFFER</title> <para>DESCRIPTION </para> @@ -1072,25 +896,9 @@ role="subsection"><title>AUDIO_CLEAR_BUFFER</title> <para>Equals AUDIO_CLEAR_BUFFER for this command.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="AUDIO_SET_ID" role="subsection"><title>AUDIO_SET_ID</title> <para>DESCRIPTION </para> @@ -1136,32 +944,9 @@ role="subsection"><title>AUDIO_SET_ID</title> <para>audio sub-stream id</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Invalid sub-stream id.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="AUDIO_SET_MIXER" role="subsection"><title>AUDIO_SET_MIXER</title> <para>DESCRIPTION </para> @@ -1202,32 +987,9 @@ role="subsection"><title>AUDIO_SET_MIXER</title> <para>mixer settings.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>mix points to an invalid address.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="AUDIO_SET_STREAMTYPE" role="subsection"><title>AUDIO_SET_STREAMTYPE</title> <para>DESCRIPTION </para> @@ -1270,17 +1032,9 @@ role="subsection"><title>AUDIO_SET_STREAMTYPE</title> <para>stream type</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> <para>EINVAL</para> </entry><entry align="char"> @@ -1288,7 +1042,7 @@ role="subsection"><title>AUDIO_SET_STREAMTYPE</title> </entry> </row></tbody></tgroup></informaltable> -</section><section +</section><section id="AUDIO_SET_EXT_ID" role="subsection"><title>AUDIO_SET_EXT_ID</title> <para>DESCRIPTION </para> @@ -1330,17 +1084,9 @@ role="subsection"><title>AUDIO_SET_EXT_ID</title> <para>audio sub_stream_id</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> <para>EINVAL</para> </entry><entry align="char"> @@ -1348,7 +1094,7 @@ role="subsection"><title>AUDIO_SET_EXT_ID</title> </entry> </row></tbody></tgroup></informaltable> -</section><section +</section><section id="AUDIO_SET_ATTRIBUTES" role="subsection"><title>AUDIO_SET_ATTRIBUTES</title> <para>DESCRIPTION </para> @@ -1391,17 +1137,9 @@ role="subsection"><title>AUDIO_SET_ATTRIBUTES</title> <para>audio attributes according to section ??</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> <para>EINVAL</para> </entry><entry align="char"> @@ -1409,7 +1147,7 @@ role="subsection"><title>AUDIO_SET_ATTRIBUTES</title> </entry> </row></tbody></tgroup></informaltable> -</section><section +</section><section id="AUDIO_SET_KARAOKE" role="subsection"><title>AUDIO_SET_KARAOKE</title> <para>DESCRIPTION </para> @@ -1422,7 +1160,7 @@ role="subsection"><title>AUDIO_SET_KARAOKE</title> </para> <informaltable><tgroup cols="1"><tbody><row><entry align="char"> -<para>int ioctl(fd, int request = AUDIO_SET_STREAMTYPE, +<para>int ioctl(fd, int request = AUDIO_SET_KARAOKE, audio_karaoke_t ⋆karaoke);</para> </entry> </row></tbody></tgroup></informaltable> @@ -1440,7 +1178,7 @@ role="subsection"><title>AUDIO_SET_KARAOKE</title> <para>int request</para> </entry><entry align="char"> -<para>Equals AUDIO_SET_STREAMTYPE for this +<para>Equals AUDIO_SET_KARAOKE for this command.</para> </entry> </row><row><entry @@ -1452,17 +1190,9 @@ role="subsection"><title>AUDIO_SET_KARAOKE</title> <para>karaoke settings according to section ??.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> <para>EINVAL</para> </entry><entry align="char"> diff --git a/Documentation/DocBook/dvb/ca.xml b/Documentation/DocBook/media/dvb/ca.xml index b1f1d2fad65..5c4adb44b1c 100644 --- a/Documentation/DocBook/dvb/ca.xml +++ b/Documentation/DocBook/media/dvb/ca.xml @@ -8,75 +8,85 @@ including <emphasis role="tt">linux/dvb/ca.h</emphasis> in your application. <title>CA Data Types</title> -<section id="ca_slot_info_t"> +<section id="ca-slot-info"> <title>ca_slot_info_t</title> <programlisting> - /⋆ slot interface types and info ⋆/ +typedef struct ca_slot_info { + int num; /⋆ slot number ⋆/ - typedef struct ca_slot_info_s { - int num; /⋆ slot number ⋆/ + int type; /⋆ CA interface this slot supports ⋆/ +#define CA_CI 1 /⋆ CI high level interface ⋆/ +#define CA_CI_LINK 2 /⋆ CI link layer level interface ⋆/ +#define CA_CI_PHYS 4 /⋆ CI physical layer level interface ⋆/ +#define CA_DESCR 8 /⋆ built-in descrambler ⋆/ +#define CA_SC 128 /⋆ simple smart card interface ⋆/ - int type; /⋆ CA interface this slot supports ⋆/ - #define CA_CI 1 /⋆ CI high level interface ⋆/ - #define CA_CI_LINK 2 /⋆ CI link layer level interface ⋆/ - #define CA_CI_PHYS 4 /⋆ CI physical layer level interface ⋆/ - #define CA_SC 128 /⋆ simple smart card interface ⋆/ - - unsigned int flags; - #define CA_CI_MODULE_PRESENT 1 /⋆ module (or card) inserted ⋆/ - #define CA_CI_MODULE_READY 2 - } ca_slot_info_t; + unsigned int flags; +#define CA_CI_MODULE_PRESENT 1 /⋆ module (or card) inserted ⋆/ +#define CA_CI_MODULE_READY 2 +} ca_slot_info_t; </programlisting> </section> -<section id="ca_descr_info_t"> +<section id="ca-descr-info"> <title>ca_descr_info_t</title> - <programlisting> - typedef struct ca_descr_info_s { - unsigned int num; /⋆ number of available descramblers (keys) ⋆/ - unsigned int type; /⋆ type of supported scrambling system ⋆/ - #define CA_ECD 1 - #define CA_NDS 2 - #define CA_DSS 4 - } ca_descr_info_t; +<programlisting> +typedef struct ca_descr_info { + unsigned int num; /⋆ number of available descramblers (keys) ⋆/ + unsigned int type; /⋆ type of supported scrambling system ⋆/ +#define CA_ECD 1 +#define CA_NDS 2 +#define CA_DSS 4 +} ca_descr_info_t; </programlisting> </section> -<section id="ca_cap_t"> -<title>ca_cap_t</title> - <programlisting> - typedef struct ca_cap_s { - unsigned int slot_num; /⋆ total number of CA card and module slots ⋆/ - unsigned int slot_type; /⋆ OR of all supported types ⋆/ - unsigned int descr_num; /⋆ total number of descrambler slots (keys) ⋆/ - unsigned int descr_type;/⋆ OR of all supported types ⋆/ +<section id="ca-caps"> +<title>ca_caps_t</title> +<programlisting> +typedef struct ca_caps { + unsigned int slot_num; /⋆ total number of CA card and module slots ⋆/ + unsigned int slot_type; /⋆ OR of all supported types ⋆/ + unsigned int descr_num; /⋆ total number of descrambler slots (keys) ⋆/ + unsigned int descr_type;/⋆ OR of all supported types ⋆/ } ca_cap_t; </programlisting> </section> -<section id="ca_msg_t"> +<section id="ca-msg"> <title>ca_msg_t</title> - <programlisting> - /⋆ a message to/from a CI-CAM ⋆/ - typedef struct ca_msg_s { - unsigned int index; - unsigned int type; - unsigned int length; - unsigned char msg[256]; - } ca_msg_t; +<programlisting> +/⋆ a message to/from a CI-CAM ⋆/ +typedef struct ca_msg { + unsigned int index; + unsigned int type; + unsigned int length; + unsigned char msg[256]; +} ca_msg_t; </programlisting> </section> -<section id="ca_descr_t"> +<section id="ca-descr"> <title>ca_descr_t</title> - <programlisting> - typedef struct ca_descr_s { - unsigned int index; - unsigned int parity; - unsigned char cw[8]; - } ca_descr_t; +<programlisting> +typedef struct ca_descr { + unsigned int index; + unsigned int parity; + unsigned char cw[8]; +} ca_descr_t; </programlisting> - </section></section> +</section> + +<section id="ca-pid"> +<title>ca-pid</title> +<programlisting> +typedef struct ca_pid { + unsigned int pid; + int index; /⋆ -1 == disable⋆/ +} ca_pid_t; +</programlisting> +</section></section> + <section id="ca_function_calls"> <title>CA Function Calls</title> @@ -148,8 +158,7 @@ including <emphasis role="tt">linux/dvb/ca.h</emphasis> in your application. <para>(blocking mode is the default)</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +<para>RETURN VALUE</para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> <para>ENODEV</para> @@ -207,8 +216,7 @@ including <emphasis role="tt">linux/dvb/ca.h</emphasis> in your application. <para>File descriptor returned by a previous call to open().</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +<para>RETURN VALUE</para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> <para>EBADF</para> diff --git a/Documentation/DocBook/dvb/demux.xml b/Documentation/DocBook/media/dvb/demux.xml index 1b8c4e9835b..37c17908aa4 100644 --- a/Documentation/DocBook/dvb/demux.xml +++ b/Documentation/DocBook/media/dvb/demux.xml @@ -7,15 +7,19 @@ accessed by including <emphasis role="tt">linux/dvb/dmx.h</emphasis> in your app <section id="dmx_types"> <title>Demux Data Types</title> -<section id="dmx_output_t"> +<section id="dmx-output-t"> <title>dmx_output_t</title> - <programlisting> - typedef enum - { - DMX_OUT_DECODER, - DMX_OUT_TAP, - DMX_OUT_TS_TAP - } dmx_output_t; +<programlisting> +typedef enum +{ + DMX_OUT_DECODER, /⋆ Streaming directly to decoder. ⋆/ + DMX_OUT_TAP, /⋆ Output going to a memory buffer ⋆/ + /⋆ (to be retrieved via the read command).⋆/ + DMX_OUT_TS_TAP, /⋆ Output multiplexed into a new TS ⋆/ + /⋆ (to be retrieved by reading from the ⋆/ + /⋆ logical DVR device). ⋆/ + DMX_OUT_TSDEMUX_TAP /⋆ Like TS_TAP but retrieved from the DMX device ⋆/ +} dmx_output_t; </programlisting> <para><emphasis role="tt">DMX_OUT_TAP</emphasis> delivers the stream output to the demux device on which the ioctl is called. @@ -26,96 +30,95 @@ specified. </para> </section> -<section id="dmx_input_t"> +<section id="dmx-input-t"> <title>dmx_input_t</title> - <programlisting> - typedef enum - { - DMX_IN_FRONTEND, - DMX_IN_DVR - } dmx_input_t; +<programlisting> +typedef enum +{ + DMX_IN_FRONTEND, /⋆ Input from a front-end device. ⋆/ + DMX_IN_DVR /⋆ Input from the logical DVR device. ⋆/ +} dmx_input_t; </programlisting> </section> -<section id="dmx_pes_type_t"> +<section id="dmx-pes-type-t"> <title>dmx_pes_type_t</title> - <programlisting> - typedef enum - { - DMX_PES_AUDIO, - DMX_PES_VIDEO, - DMX_PES_TELETEXT, - DMX_PES_SUBTITLE, - DMX_PES_PCR, - DMX_PES_OTHER - } dmx_pes_type_t; -</programlisting> -</section> +<programlisting> +typedef enum +{ + DMX_PES_AUDIO0, + DMX_PES_VIDEO0, + DMX_PES_TELETEXT0, + DMX_PES_SUBTITLE0, + DMX_PES_PCR0, -<section id="dmx_event_t"> -<title>dmx_event_t</title> - <programlisting> - typedef enum - { - DMX_SCRAMBLING_EV, - DMX_FRONTEND_EV - } dmx_event_t; -</programlisting> -</section> + DMX_PES_AUDIO1, + DMX_PES_VIDEO1, + DMX_PES_TELETEXT1, + DMX_PES_SUBTITLE1, + DMX_PES_PCR1, -<section id="dmx_scrambling_status_t"> -<title>dmx_scrambling_status_t</title> - <programlisting> - typedef enum - { - DMX_SCRAMBLING_OFF, - DMX_SCRAMBLING_ON - } dmx_scrambling_status_t; + DMX_PES_AUDIO2, + DMX_PES_VIDEO2, + DMX_PES_TELETEXT2, + DMX_PES_SUBTITLE2, + DMX_PES_PCR2, + + DMX_PES_AUDIO3, + DMX_PES_VIDEO3, + DMX_PES_TELETEXT3, + DMX_PES_SUBTITLE3, + DMX_PES_PCR3, + + DMX_PES_OTHER +} dmx_pes_type_t; </programlisting> </section> -<section id="dmx_filter"> +<section id="dmx-filter"> <title>struct dmx_filter</title> <programlisting> typedef struct dmx_filter - { - uint8_t filter[DMX_FILTER_SIZE]; - uint8_t mask[DMX_FILTER_SIZE]; - } dmx_filter_t; +{ + __u8 filter[DMX_FILTER_SIZE]; + __u8 mask[DMX_FILTER_SIZE]; + __u8 mode[DMX_FILTER_SIZE]; +} dmx_filter_t; </programlisting> </section> -<section id="dmx_sct_filter_params"> +<section id="dmx-sct-filter-params"> <title>struct dmx_sct_filter_params</title> - <programlisting> - struct dmx_sct_filter_params - { - uint16_t pid; - dmx_filter_t filter; - uint32_t timeout; - uint32_t flags; - #define DMX_CHECK_CRC 1 - #define DMX_ONESHOT 2 - #define DMX_IMMEDIATE_START 4 - }; +<programlisting> +struct dmx_sct_filter_params +{ + __u16 pid; + dmx_filter_t filter; + __u32 timeout; + __u32 flags; +#define DMX_CHECK_CRC 1 +#define DMX_ONESHOT 2 +#define DMX_IMMEDIATE_START 4 +#define DMX_KERNEL_CLIENT 0x8000 +}; </programlisting> </section> -<section id="dmx_pes_filter_params"> +<section id="dmx-pes-filter-params"> <title>struct dmx_pes_filter_params</title> - <programlisting> - struct dmx_pes_filter_params - { - uint16_t pid; - dmx_input_t input; - dmx_output_t output; - dmx_pes_type_t pes_type; - uint32_t flags; - }; +<programlisting> +struct dmx_pes_filter_params +{ + __u16 pid; + dmx_input_t input; + dmx_output_t output; + dmx_pes_type_t pes_type; + __u32 flags; +}; </programlisting> </section> -<section id="dmx_event"> +<section id="dmx-event"> <title>struct dmx_event</title> <programlisting> struct dmx_event @@ -130,19 +133,44 @@ specified. </programlisting> </section> -<section id="dmx_stc"> +<section id="dmx-stc"> <title>struct dmx_stc</title> - <programlisting> - struct dmx_stc { - unsigned int num; /⋆ input : which STC? 0..N ⋆/ - unsigned int base; /⋆ output: divisor for stc to get 90 kHz clock ⋆/ - uint64_t stc; /⋆ output: stc in 'base'⋆90 kHz units ⋆/ - }; +<programlisting> +struct dmx_stc { + unsigned int num; /⋆ input : which STC? 0..N ⋆/ + unsigned int base; /⋆ output: divisor for stc to get 90 kHz clock ⋆/ + __u64 stc; /⋆ output: stc in 'base'⋆90 kHz units ⋆/ +}; </programlisting> - </section> +</section> +<section id="dmx-caps"> +<title>struct dmx_caps</title> +<programlisting> + typedef struct dmx_caps { + __u32 caps; + int num_decoders; +} dmx_caps_t; +</programlisting> +</section> + +<section id="dmx-source-t"> +<title>enum dmx_source_t</title> +<programlisting> +typedef enum { + DMX_SOURCE_FRONT0 = 0, + DMX_SOURCE_FRONT1, + DMX_SOURCE_FRONT2, + DMX_SOURCE_FRONT3, + DMX_SOURCE_DVR0 = 16, + DMX_SOURCE_DVR1, + DMX_SOURCE_DVR2, + DMX_SOURCE_DVR3 +} dmx_source_t; +</programlisting> </section> +</section> <section id="dmx_fcalls"> <title>Demux Function Calls</title> @@ -211,8 +239,7 @@ specified. <para>(blocking mode is the default)</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +<para>RETURN VALUE</para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> <para>ENODEV</para> @@ -271,8 +298,7 @@ specified. <para>File descriptor returned by a previous call to open().</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +<para>RETURN VALUE</para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> <para>EBADF</para> @@ -353,8 +379,7 @@ specified. <para>Size of buf.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +<para>RETURN VALUE</para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> <para>EWOULDBLOCK</para> @@ -457,8 +482,7 @@ specified. <para>Size of buf.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +<para>RETURN VALUE</para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> <para>EWOULDBLOCK</para> @@ -491,7 +515,7 @@ specified. </row></tbody></tgroup></informaltable> </section> -<section id="dmx_start"> +<section id="DMX_START"> <title>DMX_START</title> <para>DESCRIPTION </para> @@ -525,17 +549,9 @@ specified. <para>Equals DMX_START for this command.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid file descriptor.</para> -</entry> - </row><row><entry - align="char"> <para>EINVAL</para> </entry><entry align="char"> @@ -556,7 +572,7 @@ specified. </row></tbody></tgroup></informaltable> </section> -<section id="dmx_stop"> +<section id="DMX_STOP"> <title>DMX_STOP</title> <para>DESCRIPTION </para> @@ -591,19 +607,10 @@ specified. <para>Equals DMX_STOP for this command.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid file descriptor.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; </section> -<section id="dmx_set_filter"> +<section id="DMX_SET_FILTER"> <title>DMX_SET_FILTER</title> <para>DESCRIPTION </para> @@ -654,26 +661,10 @@ specified. <para>Pointer to structure containing filter parameters.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Invalid argument.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; </section> -<section id="dmx_set_pes_filter"> +<section id="DMX_SET_PES_FILTER"> <title>DMX_SET_PES_FILTER</title> <para>DESCRIPTION </para> @@ -727,24 +718,9 @@ specified. <para>Pointer to structure containing filter parameters.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Invalid argument.</para> -</entry> - </row><row><entry - align="char"> <para>EBUSY</para> </entry><entry align="char"> @@ -756,7 +732,7 @@ specified. </row></tbody></tgroup></informaltable> </section> -<section id="dms_set_buffer_size"> +<section id="DMX_SET_BUFFER_SIZE"> <title>DMX_SET_BUFFER_SIZE</title> <para>DESCRIPTION </para> @@ -799,27 +775,10 @@ specified. <para>Size of circular buffer.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>ENOMEM</para> -</entry><entry - align="char"> -<para>The driver was not able to allocate a buffer of the - requested size.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; </section> -<section id="dmx_get_event"> +<section id="DMX_GET_EVENT"> <title>DMX_GET_EVENT</title> <para>DESCRIPTION </para> @@ -872,24 +831,9 @@ specified. <para>Pointer to the location where the event is to be stored.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>ev points to an invalid address.</para> -</entry> - </row><row><entry - align="char"> <para>EWOULDBLOCK</para> </entry><entry align="char"> @@ -899,7 +843,7 @@ specified. </row></tbody></tgroup></informaltable> </section> -<section id="dmx_get_stc"> +<section id="DMX_GET_STC"> <title>DMX_GET_STC</title> <para>DESCRIPTION </para> @@ -946,24 +890,9 @@ specified. <para>Pointer to the location where the stc is to be stored.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>stc points to an invalid address.</para> -</entry> - </row><row><entry - align="char"> <para>EINVAL</para> </entry><entry align="char"> diff --git a/Documentation/DocBook/dvb/dvbapi.xml b/Documentation/DocBook/media/dvb/dvbapi.xml index 9fad86ce7f5..2ab6ddcfc4e 100644 --- a/Documentation/DocBook/dvb/dvbapi.xml +++ b/Documentation/DocBook/media/dvb/dvbapi.xml @@ -114,8 +114,28 @@ Added ISDB-T test originally written by Patrick Boettcher &sub-examples; </chapter> <!-- END OF CHAPTERS --> + <appendix id="audio_h"> + <title>DVB Audio Header File</title> + &sub-audio-h; + </appendix> + <appendix id="ca_h"> + <title>DVB Conditional Access Header File</title> + &sub-ca-h; + </appendix> + <appendix id="dmx_h"> + <title>DVB Demux Header File</title> + &sub-dmx-h; + </appendix> <appendix id="frontend_h"> <title>DVB Frontend Header File</title> &sub-frontend-h; </appendix> + <appendix id="net_h"> + <title>DVB Network Header File</title> + &sub-net-h; + </appendix> + <appendix id="video_h"> + <title>DVB Video Header File</title> + &sub-video-h; + </appendix> diff --git a/Documentation/DocBook/media/dvb/dvbproperty.xml b/Documentation/DocBook/media/dvb/dvbproperty.xml new file mode 100644 index 00000000000..207e1a5bf8f --- /dev/null +++ b/Documentation/DocBook/media/dvb/dvbproperty.xml @@ -0,0 +1,859 @@ +<section id="FE_GET_SET_PROPERTY"> +<title><constant>FE_GET_PROPERTY/FE_SET_PROPERTY</constant></title> +<para>This section describes the DVB version 5 extention of the DVB-API, also +called "S2API", as this API were added to provide support for DVB-S2. It was +designed to be able to replace the old frontend API. Yet, the DISEQC and +the capability ioctls weren't implemented yet via the new way.</para> +<para>The typical usage for the <constant>FE_GET_PROPERTY/FE_SET_PROPERTY</constant> +API is to replace the ioctl's were the <link linkend="dvb-frontend-parameters"> +struct <constant>dvb_frontend_parameters</constant></link> were used.</para> +<section id="dtv-property"> +<title>DTV property type</title> +<programlisting> +/* Reserved fields should be set to 0 */ +struct dtv_property { + __u32 cmd; + union { + __u32 data; + struct { + __u8 data[32]; + __u32 len; + __u32 reserved1[3]; + void *reserved2; + } buffer; + } u; + int result; +} __attribute__ ((packed)); + +/* num of properties cannot exceed DTV_IOCTL_MAX_MSGS per ioctl */ +#define DTV_IOCTL_MAX_MSGS 64 +</programlisting> +</section> +<section id="dtv-properties"> +<title>DTV properties type</title> +<programlisting> +struct dtv_properties { + __u32 num; + struct dtv_property *props; +}; +</programlisting> +</section> + +<section id="FE_GET_PROPERTY"> +<title>FE_GET_PROPERTY</title> +<para>DESCRIPTION +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>This ioctl call returns one or more frontend properties. This call only + requires read-only access to the device.</para> +</entry> + </row></tbody></tgroup></informaltable> +<para>SYNOPSIS +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>int ioctl(int fd, int request = <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>, + dtv_properties ⋆props);</para> +</entry> + </row></tbody></tgroup></informaltable> +<para>PARAMETERS +</para> +<informaltable><tgroup cols="2"><tbody><row><entry align="char"> +<para>int fd</para> +</entry><entry + align="char"> +<para>File descriptor returned by a previous call to open().</para> +</entry> + </row><row><entry + align="char"> +<para>int num</para> +</entry><entry + align="char"> +<para>Equals <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link> for this command.</para> +</entry> + </row><row><entry + align="char"> +<para>struct dtv_property *props</para> +</entry><entry + align="char"> +<para>Points to the location where the front-end property commands are stored.</para> +</entry> + </row></tbody></tgroup></informaltable> +&return-value-dvb; +<informaltable><tgroup cols="2"><tbody><row> + <entry align="char"><para>EOPNOTSUPP</para></entry> + <entry align="char"><para>Property type not supported.</para></entry> + </row></tbody></tgroup></informaltable> +</section> + +<section id="FE_SET_PROPERTY"> +<title>FE_SET_PROPERTY</title> +<para>DESCRIPTION +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>This ioctl call sets one or more frontend properties. This call only + requires read-only access to the device.</para> +</entry> + </row></tbody></tgroup></informaltable> +<para>SYNOPSIS +</para> +<informaltable><tgroup cols="1"><tbody><row><entry + align="char"> +<para>int ioctl(int fd, int request = <link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>, + dtv_properties ⋆props);</para> +</entry> + </row></tbody></tgroup></informaltable> +<para>PARAMETERS +</para> +<informaltable><tgroup cols="2"><tbody><row><entry align="char"> +<para>int fd</para> +</entry><entry + align="char"> +<para>File descriptor returned by a previous call to open().</para> +</entry> + </row><row><entry + align="char"> +<para>int num</para> +</entry><entry + align="char"> +<para>Equals <link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link> for this command.</para> +</entry> + </row><row><entry + align="char"> +<para>struct dtv_property *props</para> +</entry><entry + align="char"> +<para>Points to the location where the front-end property commands are stored.</para> +</entry> + </row></tbody></tgroup></informaltable> +&return-value-dvb; +<informaltable><tgroup cols="2"><tbody><row> + <entry align="char"><para>EOPNOTSUPP</para></entry> + <entry align="char"><para>Property type not supported.</para></entry> + </row></tbody></tgroup></informaltable> +</section> + +<section> + <title>Property types</title> +<para> +On <link linkend="FE_GET_PROPERTY">FE_GET_PROPERTY</link>/<link linkend="FE_SET_PROPERTY">FE_SET_PROPERTY</link>, +the actual action is determined by the dtv_property cmd/data pairs. With one single ioctl, is possible to +get/set up to 64 properties. The actual meaning of each property is described on the next sections. +</para> + +<para>The available frontend property types are shown on the next section.</para> +</section> + +<section id="fe_property_parameters"> + <title>Digital TV property parameters</title> + <section id="DTV-UNDEFINED"> + <title><constant>DTV_UNDEFINED</constant></title> + <para>Used internally. A GET/SET operation for it won't change or return anything.</para> + </section> + <section id="DTV-TUNE"> + <title><constant>DTV_TUNE</constant></title> + <para>Interpret the cache of data, build either a traditional frontend tunerequest so we can pass validation in the <constant>FE_SET_FRONTEND</constant> ioctl.</para> + </section> + <section id="DTV-CLEAR"> + <title><constant>DTV_CLEAR</constant></title> + <para>Reset a cache of data specific to the frontend here. This does not effect hardware.</para> + </section> + <section id="DTV-FREQUENCY"> + <title><constant>DTV_FREQUENCY</constant></title> + + <para>Central frequency of the channel, in HZ.</para> + + <para>Notes:</para> + <para>1)For ISDB-T, the channels are usually transmitted with an offset of 143kHz. + E.g. a valid frequncy could be 474143 kHz. The stepping is bound to the bandwidth of + the channel which is 6MHz.</para> + + <para>2)As in ISDB-Tsb the channel consists of only one or three segments the + frequency step is 429kHz, 3*429 respectively. As for ISDB-T the + central frequency of the channel is expected.</para> + </section> + <section id="DTV-MODULATION"> + <title><constant>DTV_MODULATION</constant></title> +<para>Specifies the frontend modulation type for cable and satellite types. The modulation can be one of the types bellow:</para> +<programlisting> + typedef enum fe_modulation { + QPSK, + QAM_16, + QAM_32, + QAM_64, + QAM_128, + QAM_256, + QAM_AUTO, + VSB_8, + VSB_16, + PSK_8, + APSK_16, + APSK_32, + DQPSK, + } fe_modulation_t; +</programlisting> + </section> + <section id="DTV-BANDWIDTH-HZ"> + <title><constant>DTV_BANDWIDTH_HZ</constant></title> + + <para>Bandwidth for the channel, in HZ.</para> + + <para>Possible values: + <constant>1712000</constant>, + <constant>5000000</constant>, + <constant>6000000</constant>, + <constant>7000000</constant>, + <constant>8000000</constant>, + <constant>10000000</constant>. + </para> + + <para>Notes:</para> + + <para>1) For ISDB-T it should be always 6000000Hz (6MHz)</para> + <para>2) For ISDB-Tsb it can vary depending on the number of connected segments</para> + <para>3) Bandwidth doesn't apply for DVB-C transmissions, as the bandwidth + for DVB-C depends on the symbol rate</para> + <para>4) Bandwidth in ISDB-T is fixed (6MHz) or can be easily derived from + other parameters (DTV_ISDBT_SB_SEGMENT_IDX, + DTV_ISDBT_SB_SEGMENT_COUNT).</para> + <para>5) DVB-T supports 6, 7 and 8MHz.</para> + <para>6) In addition, DVB-T2 supports 1.172, 5 and 10MHz.</para> + </section> + <section id="DTV-INVERSION"> + <title><constant>DTV_INVERSION</constant></title> + <para>The Inversion field can take one of these values: + </para> + <programlisting> + typedef enum fe_spectral_inversion { + INVERSION_OFF, + INVERSION_ON, + INVERSION_AUTO + } fe_spectral_inversion_t; + </programlisting> + <para>It indicates if spectral inversion should be presumed or not. In the automatic setting + (<constant>INVERSION_AUTO</constant>) the hardware will try to figure out the correct setting by + itself. + </para> + </section> + <section id="DTV-DISEQC-MASTER"> + <title><constant>DTV_DISEQC_MASTER</constant></title> + <para>Currently not implemented.</para> + </section> + <section id="DTV-SYMBOL-RATE"> + <title><constant>DTV_SYMBOL_RATE</constant></title> + <para>Digital TV symbol rate, in bauds (symbols/second). Used on cable standards.</para> + </section> + <section id="DTV-INNER-FEC"> + <title><constant>DTV_INNER_FEC</constant></title> + <para>Used cable/satellite transmissions. The acceptable values are: + </para> + <programlisting> +typedef enum fe_code_rate { + FEC_NONE = 0, + FEC_1_2, + FEC_2_3, + FEC_3_4, + FEC_4_5, + FEC_5_6, + FEC_6_7, + FEC_7_8, + FEC_8_9, + FEC_AUTO, + FEC_3_5, + FEC_9_10, +} fe_code_rate_t; + </programlisting> + <para>which correspond to error correction rates of 1/2, 2/3, etc., + no error correction or auto detection.</para> + </section> + <section id="DTV-VOLTAGE"> + <title><constant>DTV_VOLTAGE</constant></title> + <para>The voltage is usually used with non-DiSEqC capable LNBs to switch + the polarzation (horizontal/vertical). When using DiSEqC epuipment this + voltage has to be switched consistently to the DiSEqC commands as + described in the DiSEqC spec.</para> + <programlisting> + typedef enum fe_sec_voltage { + SEC_VOLTAGE_13, + SEC_VOLTAGE_18 + } fe_sec_voltage_t; + </programlisting> + </section> + <section id="DTV-TONE"> + <title><constant>DTV_TONE</constant></title> + <para>Currently not used.</para> + </section> + <section id="DTV-PILOT"> + <title><constant>DTV_PILOT</constant></title> + <para>Sets DVB-S2 pilot</para> + <section id="fe-pilot-t"> + <title>fe_pilot type</title> + <programlisting> +typedef enum fe_pilot { + PILOT_ON, + PILOT_OFF, + PILOT_AUTO, +} fe_pilot_t; + </programlisting> + </section> + </section> + <section id="DTV-ROLLOFF"> + <title><constant>DTV_ROLLOFF</constant></title> + <para>Sets DVB-S2 rolloff</para> + + <section id="fe-rolloff-t"> + <title>fe_rolloff type</title> + <programlisting> +typedef enum fe_rolloff { + ROLLOFF_35, /* Implied value in DVB-S, default for DVB-S2 */ + ROLLOFF_20, + ROLLOFF_25, + ROLLOFF_AUTO, +} fe_rolloff_t; + </programlisting> + </section> + </section> + <section id="DTV-DISEQC-SLAVE-REPLY"> + <title><constant>DTV_DISEQC_SLAVE_REPLY</constant></title> + <para>Currently not implemented.</para> + </section> + <section id="DTV-FE-CAPABILITY-COUNT"> + <title><constant>DTV_FE_CAPABILITY_COUNT</constant></title> + <para>Currently not implemented.</para> + </section> + <section id="DTV-FE-CAPABILITY"> + <title><constant>DTV_FE_CAPABILITY</constant></title> + <para>Currently not implemented.</para> + </section> + <section id="DTV-DELIVERY-SYSTEM"> + <title><constant>DTV_DELIVERY_SYSTEM</constant></title> + <para>Specifies the type of Delivery system</para> + <section id="fe-delivery-system-t"> + <title>fe_delivery_system type</title> + <para>Possible values: </para> +<programlisting> +typedef enum fe_delivery_system { + SYS_UNDEFINED, + SYS_DVBC_ANNEX_AC, + SYS_DVBC_ANNEX_B, + SYS_DVBT, + SYS_DSS, + SYS_DVBS, + SYS_DVBS2, + SYS_DVBH, + SYS_ISDBT, + SYS_ISDBS, + SYS_ISDBC, + SYS_ATSC, + SYS_ATSCMH, + SYS_DMBTH, + SYS_CMMB, + SYS_DAB, + SYS_DVBT2, +} fe_delivery_system_t; +</programlisting> + </section> + </section> + <section id="DTV-ISDBT-PARTIAL-RECEPTION"> + <title><constant>DTV_ISDBT_PARTIAL_RECEPTION</constant></title> + + <para>If <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '0' this bit-field represents whether + the channel is in partial reception mode or not.</para> + + <para>If '1' <constant>DTV_ISDBT_LAYERA_*</constant> values are assigned to the center segment and + <constant>DTV_ISDBT_LAYERA_SEGMENT_COUNT</constant> has to be '1'.</para> + + <para>If in addition <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1' + <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant> represents whether this ISDB-Tsb channel + is consisting of one segment and layer or three segments and two layers.</para> + + <para>Possible values: 0, 1, -1 (AUTO)</para> + </section> + <section id="DTV-ISDBT-SOUND-BROADCASTING"> + <title><constant>DTV_ISDBT_SOUND_BROADCASTING</constant></title> + + <para>This field represents whether the other DTV_ISDBT_*-parameters are + referring to an ISDB-T and an ISDB-Tsb channel. (See also + <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant>).</para> + + <para>Possible values: 0, 1, -1 (AUTO)</para> + </section> + <section id="DTV-ISDBT-SB-SUBCHANNEL-ID"> + <title><constant>DTV_ISDBT_SB_SUBCHANNEL_ID</constant></title> + + <para>This field only applies if <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1'.</para> + + <para>(Note of the author: This might not be the correct description of the + <constant>SUBCHANNEL-ID</constant> in all details, but it is my understanding of the technical + background needed to program a device)</para> + + <para>An ISDB-Tsb channel (1 or 3 segments) can be broadcasted alone or in a + set of connected ISDB-Tsb channels. In this set of channels every + channel can be received independently. The number of connected + ISDB-Tsb segment can vary, e.g. depending on the frequency spectrum + bandwidth available.</para> + + <para>Example: Assume 8 ISDB-Tsb connected segments are broadcasted. The + broadcaster has several possibilities to put those channels in the + air: Assuming a normal 13-segment ISDB-T spectrum he can align the 8 + segments from position 1-8 to 5-13 or anything in between.</para> + + <para>The underlying layer of segments are subchannels: each segment is + consisting of several subchannels with a predefined IDs. A sub-channel + is used to help the demodulator to synchronize on the channel.</para> + + <para>An ISDB-T channel is always centered over all sub-channels. As for + the example above, in ISDB-Tsb it is no longer as simple as that.</para> + + <para><constant>The DTV_ISDBT_SB_SUBCHANNEL_ID</constant> parameter is used to give the + sub-channel ID of the segment to be demodulated.</para> + + <para>Possible values: 0 .. 41, -1 (AUTO)</para> + </section> + <section id="DTV-ISDBT-SB-SEGMENT-IDX"> + <title><constant>DTV_ISDBT_SB_SEGMENT_IDX</constant></title> + <para>This field only applies if <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1'.</para> + <para><constant>DTV_ISDBT_SB_SEGMENT_IDX</constant> gives the index of the segment to be + demodulated for an ISDB-Tsb channel where several of them are + transmitted in the connected manner.</para> + <para>Possible values: 0 .. <constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant> - 1</para> + <para>Note: This value cannot be determined by an automatic channel search.</para> + </section> + <section id="DTV-ISDBT-SB-SEGMENT-COUNT"> + <title><constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant></title> + <para>This field only applies if <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> is '1'.</para> + <para><constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant> gives the total count of connected ISDB-Tsb + channels.</para> + <para>Possible values: 1 .. 13</para> + <para>Note: This value cannot be determined by an automatic channel search.</para> + </section> + <section id="isdb-hierq-layers"> + <title><constant>DTV-ISDBT-LAYER*</constant> parameters</title> + <para>ISDB-T channels can be coded hierarchically. As opposed to DVB-T in + ISDB-T hierarchical layers can be decoded simultaneously. For that + reason a ISDB-T demodulator has 3 viterbi and 3 reed-solomon-decoders.</para> + <para>ISDB-T has 3 hierarchical layers which each can use a part of the + available segments. The total number of segments over all layers has + to 13 in ISDB-T.</para> + <para>There are 3 parameter sets, for Layers A, B and C.</para> + <section id="DTV-ISDBT-LAYER-ENABLED"> + <title><constant>DTV_ISDBT_LAYER_ENABLED</constant></title> + <para>Hierarchical reception in ISDB-T is achieved by enabling or disabling + layers in the decoding process. Setting all bits of + <constant>DTV_ISDBT_LAYER_ENABLED</constant> to '1' forces all layers (if applicable) to be + demodulated. This is the default.</para> + <para>If the channel is in the partial reception mode + (<constant>DTV_ISDBT_PARTIAL_RECEPTION</constant> = 1) the central segment can be decoded + independently of the other 12 segments. In that mode layer A has to + have a <constant>SEGMENT_COUNT</constant> of 1.</para> + <para>In ISDB-Tsb only layer A is used, it can be 1 or 3 in ISDB-Tsb + according to <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant>. <constant>SEGMENT_COUNT</constant> must be filled + accordingly.</para> + <para>Possible values: 0x1, 0x2, 0x4 (|-able)</para> + <para><constant>DTV_ISDBT_LAYER_ENABLED[0:0]</constant> - layer A</para> + <para><constant>DTV_ISDBT_LAYER_ENABLED[1:1]</constant> - layer B</para> + <para><constant>DTV_ISDBT_LAYER_ENABLED[2:2]</constant> - layer C</para> + <para><constant>DTV_ISDBT_LAYER_ENABLED[31:3]</constant> unused</para> + </section> + <section id="DTV-ISDBT-LAYER-FEC"> + <title><constant>DTV_ISDBT_LAYER*_FEC</constant></title> + <para>Possible values: <constant>FEC_AUTO</constant>, <constant>FEC_1_2</constant>, <constant>FEC_2_3</constant>, <constant>FEC_3_4</constant>, <constant>FEC_5_6</constant>, <constant>FEC_7_8</constant></para> + </section> + <section id="DTV-ISDBT-LAYER-MODULATION"> + <title><constant>DTV_ISDBT_LAYER*_MODULATION</constant></title> + <para>Possible values: <constant>QAM_AUTO</constant>, QP<constant>SK, QAM_16</constant>, <constant>QAM_64</constant>, <constant>DQPSK</constant></para> + <para>Note: If layer C is <constant>DQPSK</constant> layer B has to be <constant>DQPSK</constant>. If layer B is <constant>DQPSK</constant> + and <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant>=0 layer has to be <constant>DQPSK</constant>.</para> + </section> + <section id="DTV-ISDBT-LAYER-SEGMENT-COUNT"> + <title><constant>DTV_ISDBT_LAYER*_SEGMENT_COUNT</constant></title> + <para>Possible values: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, -1 (AUTO)</para> + <para>Note: Truth table for <constant>DTV_ISDBT_SOUND_BROADCASTING</constant> and + <constant>DTV_ISDBT_PARTIAL_RECEPTION</constant> and <constant>LAYER</constant>*_SEGMENT_COUNT</para> + <informaltable id="isdbt-layer_seg-cnt-table"> + <tgroup cols="6"> + <tbody> + <row> + <entry>PR</entry> + <entry>SB</entry> + <entry>Layer A width</entry> + <entry>Layer B width</entry> + <entry>Layer C width</entry> + <entry>total width</entry> + </row> + <row> + <entry>0</entry> + <entry>0</entry> + <entry>1 .. 13</entry> + <entry>1 .. 13</entry> + <entry>1 .. 13</entry> + <entry>13</entry> + </row> + <row> + <entry>1</entry> + <entry>0</entry> + <entry>1</entry> + <entry>1 .. 13</entry> + <entry>1 .. 13</entry> + <entry>13</entry> + </row> + <row> + <entry>0</entry> + <entry>1</entry> + <entry>1</entry> + <entry>0</entry> + <entry>0</entry> + <entry>1</entry> + </row> + <row> + <entry>1</entry> + <entry>1</entry> + <entry>1</entry> + <entry>2</entry> + <entry>0</entry> + <entry>13</entry> + </row> + </tbody> + </tgroup> + </informaltable> + </section> + <section id="DTV-ISDBT-LAYER-TIME-INTERLEAVING"> + <title><constant>DTV_ISDBT_LAYER*_TIME_INTERLEAVING</constant></title> + <para>Possible values: 0, 1, 2, 3, -1 (AUTO)</para> + <para>Note: The real inter-leaver depth-names depend on the mode (fft-size); the values + here are referring to what can be found in the TMCC-structure - + independent of the mode.</para> + </section> + </section> + <section id="DTV-API-VERSION"> + <title><constant>DTV_API_VERSION</constant></title> + <para>Returns the major/minor version of the DVB API</para> + </section> + <section id="DTV-CODE-RATE-HP"> + <title><constant>DTV_CODE_RATE_HP</constant></title> + <para>Used on terrestrial transmissions. The acceptable values are: + </para> + <programlisting> +typedef enum fe_code_rate { + FEC_NONE = 0, + FEC_1_2, + FEC_2_3, + FEC_3_4, + FEC_4_5, + FEC_5_6, + FEC_6_7, + FEC_7_8, + FEC_8_9, + FEC_AUTO, + FEC_3_5, + FEC_9_10, +} fe_code_rate_t; + </programlisting> + </section> + <section id="DTV-CODE-RATE-LP"> + <title><constant>DTV_CODE_RATE_LP</constant></title> + <para>Used on terrestrial transmissions. The acceptable values are: + </para> + <programlisting> +typedef enum fe_code_rate { + FEC_NONE = 0, + FEC_1_2, + FEC_2_3, + FEC_3_4, + FEC_4_5, + FEC_5_6, + FEC_6_7, + FEC_7_8, + FEC_8_9, + FEC_AUTO, + FEC_3_5, + FEC_9_10, +} fe_code_rate_t; + </programlisting> + </section> + <section id="DTV-GUARD-INTERVAL"> + <title><constant>DTV_GUARD_INTERVAL</constant></title> + + <para>Possible values are:</para> +<programlisting> +typedef enum fe_guard_interval { + GUARD_INTERVAL_1_32, + GUARD_INTERVAL_1_16, + GUARD_INTERVAL_1_8, + GUARD_INTERVAL_1_4, + GUARD_INTERVAL_AUTO, + GUARD_INTERVAL_1_128, + GUARD_INTERVAL_19_128, + GUARD_INTERVAL_19_256, +} fe_guard_interval_t; +</programlisting> + + <para>Notes:</para> + <para>1) If <constant>DTV_GUARD_INTERVAL</constant> is set the <constant>GUARD_INTERVAL_AUTO</constant> the hardware will + try to find the correct guard interval (if capable) and will use TMCC to fill + in the missing parameters.</para> + <para>2) Intervals 1/128, 19/128 and 19/256 are used only for DVB-T2 at present</para> + </section> + <section id="DTV-TRANSMISSION-MODE"> + <title><constant>DTV_TRANSMISSION_MODE</constant></title> + + <para>Specifies the number of carriers used by the standard</para> + + <para>Possible values are:</para> +<programlisting> +typedef enum fe_transmit_mode { + TRANSMISSION_MODE_2K, + TRANSMISSION_MODE_8K, + TRANSMISSION_MODE_AUTO, + TRANSMISSION_MODE_4K, + TRANSMISSION_MODE_1K, + TRANSMISSION_MODE_16K, + TRANSMISSION_MODE_32K, +} fe_transmit_mode_t; +</programlisting> + <para>Notes:</para> + <para>1) ISDB-T supports three carrier/symbol-size: 8K, 4K, 2K. It is called + 'mode' in the standard: Mode 1 is 2K, mode 2 is 4K, mode 3 is 8K</para> + + <para>2) If <constant>DTV_TRANSMISSION_MODE</constant> is set the <constant>TRANSMISSION_MODE_AUTO</constant> the + hardware will try to find the correct FFT-size (if capable) and will + use TMCC to fill in the missing parameters.</para> + <para>3) DVB-T specifies 2K and 8K as valid sizes.</para> + <para>4) DVB-T2 specifies 1K, 2K, 4K, 8K, 16K and 32K.</para> + </section> + <section id="DTV-HIERARCHY"> + <title><constant>DTV_HIERARCHY</constant></title> + <para>Frontend hierarchy</para> + <programlisting> +typedef enum fe_hierarchy { + HIERARCHY_NONE, + HIERARCHY_1, + HIERARCHY_2, + HIERARCHY_4, + HIERARCHY_AUTO + } fe_hierarchy_t; + </programlisting> + </section> + <section id="DTV-ISDBS-TS-ID"> + <title><constant>DTV_ISDBS_TS_ID</constant></title> + <para>Currently unused.</para> + </section> + <section id="DTV-DVBT2-PLP-ID"> + <title><constant>DTV_DVBT2_PLP_ID</constant></title> + <para>DVB-T2 supports Physical Layer Pipes (PLP) to allow transmission of + many data types via a single multiplex. The API will soon support this + at which point this section will be expanded.</para> + </section> +</section> + <section id="frontend-property-terrestrial-systems"> + <title>Properties used on terrestrial delivery systems</title> + <section id="dvbt-params"> + <title>DVB-T delivery system</title> + <para>The following parameters are valid for DVB-T:</para> + <itemizedlist mark='opencircle'> + <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem> + <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem> + <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem> + <listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem> + <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-CODE-RATE-HP"><constant>DTV_CODE_RATE_HP</constant></link></para></listitem> + <listitem><para><link linkend="DTV-CODE-RATE-LP"><constant>DTV_CODE_RATE_LP</constant></link></para></listitem> + <listitem><para><link linkend="DTV-GUARD-INTERVAL"><constant>DTV_GUARD_INTERVAL</constant></link></para></listitem> + <listitem><para><link linkend="DTV-TRANSMISSION-MODE"><constant>DTV_TRANSMISSION_MODE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-HIERARCHY"><constant>DTV_HIERARCHY</constant></link></para></listitem> + </itemizedlist> + </section> + <section id="dvbt2-params"> + <title>DVB-T2 delivery system</title> + <para>DVB-T2 support is currently in the early stages + of development, so expect that this section maygrow and become + more detailed with time.</para> + <para>The following parameters are valid for DVB-T2:</para> + <itemizedlist mark='opencircle'> + <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem> + <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem> + <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem> + <listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem> + <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-CODE-RATE-HP"><constant>DTV_CODE_RATE_HP</constant></link></para></listitem> + <listitem><para><link linkend="DTV-CODE-RATE-LP"><constant>DTV_CODE_RATE_LP</constant></link></para></listitem> + <listitem><para><link linkend="DTV-GUARD-INTERVAL"><constant>DTV_GUARD_INTERVAL</constant></link></para></listitem> + <listitem><para><link linkend="DTV-TRANSMISSION-MODE"><constant>DTV_TRANSMISSION_MODE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-HIERARCHY"><constant>DTV_HIERARCHY</constant></link></para></listitem> + <listitem><para><link linkend="DTV-DVBT2-PLP-ID"><constant>DTV_DVBT2_PLP_ID</constant></link></para></listitem> + </itemizedlist> + </section> + <section id="isdbt"> + <title>ISDB-T delivery system</title> + <para>This ISDB-T/ISDB-Tsb API extension should reflect all information + needed to tune any ISDB-T/ISDB-Tsb hardware. Of course it is possible + that some very sophisticated devices won't need certain parameters to + tune.</para> + <para>The information given here should help application writers to know how + to handle ISDB-T and ISDB-Tsb hardware using the Linux DVB-API.</para> + <para>The details given here about ISDB-T and ISDB-Tsb are just enough to + basically show the dependencies between the needed parameter values, + but surely some information is left out. For more detailed information + see the following documents:</para> + <para>ARIB STD-B31 - "Transmission System for Digital Terrestrial + Television Broadcasting" and</para> + <para>ARIB TR-B14 - "Operational Guidelines for Digital Terrestrial + Television Broadcasting".</para> + <para>In order to understand the ISDB specific parameters, + one has to have some knowledge the channel structure in + ISDB-T and ISDB-Tsb. I.e. it has to be known to + the reader that an ISDB-T channel consists of 13 segments, + that it can have up to 3 layer sharing those segments, + and things like that.</para> + <para>The following parameters are valid for ISDB-T:</para> + <itemizedlist mark='opencircle'> + <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem> + <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem> + <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem> + <listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem> + <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-CODE-RATE-HP"><constant>DTV_CODE_RATE_HP</constant></link></para></listitem> + <listitem><para><link linkend="DTV-CODE-RATE-LP"><constant>DTV_CODE_RATE_LP</constant></link></para></listitem> + <listitem><para><link linkend="DTV-GUARD-INTERVAL"><constant>DTV_GUARD_INTERVAL</constant></link></para></listitem> + <listitem><para><link linkend="DTV-TRANSMISSION-MODE"><constant>DTV_TRANSMISSION_MODE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-HIERARCHY"><constant>DTV_HIERARCHY</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-LAYER-ENABLED"><constant>DTV_ISDBT_LAYER_ENABLED</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-PARTIAL-RECEPTION"><constant>DTV_ISDBT_PARTIAL_RECEPTION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-SOUND-BROADCASTING"><constant>DTV_ISDBT_SOUND_BROADCASTING</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-SB-SUBCHANNEL-ID"><constant>DTV_ISDBT_SB_SUBCHANNEL_ID</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-SB-SEGMENT-IDX"><constant>DTV_ISDBT_SB_SEGMENT_IDX</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-SB-SEGMENT-COUNT"><constant>DTV_ISDBT_SB_SEGMENT_COUNT</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-LAYER-FEC"><constant>DTV_ISDBT_LAYERA_FEC</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-LAYER-MODULATION"><constant>DTV_ISDBT_LAYERA_MODULATION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-LAYER-SEGMENT-COUNT"><constant>DTV_ISDBT_LAYERA_SEGMENT_COUNT</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-LAYER-TIME-INTERLEAVING"><constant>DTV_ISDBT_LAYERA_TIME_INTERLEAVING</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-LAYER-FEC"><constant>DTV_ISDBT_LAYERB_FEC</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-LAYER-MODULATION"><constant>DTV_ISDBT_LAYERB_MODULATION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-LAYER-SEGMENT-COUNT"><constant>DTV_ISDBT_LAYERB_SEGMENT_COUNT</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-LAYER-TIME-INTERLEAVING"><constant>DTV_ISDBT_LAYERB_TIME_INTERLEAVING</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-LAYER-FEC"><constant>DTV_ISDBT_LAYERC_FEC</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-LAYER-MODULATION"><constant>DTV_ISDBT_LAYERC_MODULATION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-LAYER-SEGMENT-COUNT"><constant>DTV_ISDBT_LAYERC_SEGMENT_COUNT</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBT-LAYER-TIME-INTERLEAVING"><constant>DTV_ISDBT_LAYERC_TIME_INTERLEAVING</constant></link></para></listitem> + </itemizedlist> + </section> + <section id="atsc-params"> + <title>ATSC delivery system</title> + <para>The following parameters are valid for ATSC:</para> + <itemizedlist mark='opencircle'> + <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem> + <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem> + <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem> + <listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-BANDWIDTH-HZ"><constant>DTV_BANDWIDTH_HZ</constant></link></para></listitem> + </itemizedlist> + </section> + </section> + <section id="frontend-property-cable-systems"> + <title>Properties used on cable delivery systems</title> + <section id="dvbc-params"> + <title>DVB-C delivery system</title> + <para>The DVB-C Annex-A/C is the widely used cable standard. Transmission uses QAM modulation.</para> + <para>The following parameters are valid for DVB-C Annex A/C:</para> + <itemizedlist mark='opencircle'> + <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem> + <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem> + <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem> + <listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-SYMBOL-RATE"><constant>DTV_SYMBOL_RATE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem> + </itemizedlist> + </section> + <section id="dvbc-annex-b-params"> + <title>DVB-C Annex B delivery system</title> + <para>The DVB-C Annex-B is only used on a few Countries like the United States.</para> + <para>The following parameters are valid for DVB-C Annex B:</para> + <itemizedlist mark='opencircle'> + <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem> + <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem> + <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem> + <listitem><para><link linkend="DTV-MODULATION"><constant>DTV_MODULATION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem> + </itemizedlist> + </section> + </section> + <section id="frontend-property-satellital-systems"> + <title>Properties used on satellital delivery systems</title> + <section id="dvbs-params"> + <title>DVB-S delivery system</title> + <para>The following parameters are valid for DVB-S:</para> + <itemizedlist mark='opencircle'> + <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem> + <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem> + <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem> + <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-SYMBOL-RATE"><constant>DTV_SYMBOL_RATE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem> + </itemizedlist> + <para>Future implementations might add those two missing parameters:</para> + <itemizedlist mark='opencircle'> + <listitem><para><link linkend="DTV-DISEQC-MASTER"><constant>DTV_DISEQC_MASTER</constant></link></para></listitem> + <listitem><para><link linkend="DTV-DISEQC-SLAVE-REPLY"><constant>DTV_DISEQC_SLAVE_REPLY</constant></link></para></listitem> + </itemizedlist> + </section> + <section id="dvbs2-params"> + <title>DVB-S2 delivery system</title> + <para>The following parameters are valid for DVB-S2:</para> + <itemizedlist mark='opencircle'> + <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem> + <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem> + <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem> + <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-SYMBOL-RATE"><constant>DTV_SYMBOL_RATE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem> + <listitem><para><link linkend="DTV-VOLTAGE"><constant>DTV_VOLTAGE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-TONE"><constant>DTV_TONE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-PILOT"><constant>DTV_PILOT</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ROLLOFF"><constant>DTV_ROLLOFF</constant></link></para></listitem> + </itemizedlist> + <para>Future implementations might add those two missing parameters:</para> + <itemizedlist mark='opencircle'> + <listitem><para><link linkend="DTV-DISEQC-MASTER"><constant>DTV_DISEQC_MASTER</constant></link></para></listitem> + <listitem><para><link linkend="DTV-DISEQC-SLAVE-REPLY"><constant>DTV_DISEQC_SLAVE_REPLY</constant></link></para></listitem> + </itemizedlist> + </section> + <section id="isdbs-params"> + <title>ISDB-S delivery system</title> + <para>The following parameters are valid for ISDB-S:</para> + <itemizedlist mark='opencircle'> + <listitem><para><link linkend="DTV-API-VERSION"><constant>DTV_API_VERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-DELIVERY-SYSTEM"><constant>DTV_DELIVERY_SYSTEM</constant></link></para></listitem> + <listitem><para><link linkend="DTV-TUNE"><constant>DTV_TUNE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-CLEAR"><constant>DTV_CLEAR</constant></link></para></listitem> + <listitem><para><link linkend="DTV-FREQUENCY"><constant>DTV_FREQUENCY</constant></link></para></listitem> + <listitem><para><link linkend="DTV-INVERSION"><constant>DTV_INVERSION</constant></link></para></listitem> + <listitem><para><link linkend="DTV-SYMBOL-RATE"><constant>DTV_SYMBOL_RATE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-INNER-FEC"><constant>DTV_INNER_FEC</constant></link></para></listitem> + <listitem><para><link linkend="DTV-VOLTAGE"><constant>DTV_VOLTAGE</constant></link></para></listitem> + <listitem><para><link linkend="DTV-ISDBS-TS-ID"><constant>DTV_ISDBS_TS_ID</constant></link></para></listitem> + </itemizedlist> + </section> + </section> +</section> diff --git a/Documentation/DocBook/dvb/dvbstb.pdf b/Documentation/DocBook/media/dvb/dvbstb.pdf Binary files differindex 0fa75d90c3e..0fa75d90c3e 100644 --- a/Documentation/DocBook/dvb/dvbstb.pdf +++ b/Documentation/DocBook/media/dvb/dvbstb.pdf diff --git a/Documentation/DocBook/dvb/examples.xml b/Documentation/DocBook/media/dvb/examples.xml index f037e568eb6..f037e568eb6 100644 --- a/Documentation/DocBook/dvb/examples.xml +++ b/Documentation/DocBook/media/dvb/examples.xml diff --git a/Documentation/DocBook/dvb/frontend.xml b/Documentation/DocBook/media/dvb/frontend.xml index 60c6976fb31..61407eaba02 100644 --- a/Documentation/DocBook/dvb/frontend.xml +++ b/Documentation/DocBook/media/dvb/frontend.xml @@ -20,22 +20,52 @@ cards, in which case there exists no frontend device.</para> <section id="frontend_types"> <title>Frontend Data Types</title> -<section id="frontend_type"> -<title>frontend type</title> - -<para>For historical reasons frontend types are named after the type of modulation used in -transmission.</para> -<programlisting> - typedef enum fe_type { - FE_QPSK, /⋆ DVB-S ⋆/ - FE_QAM, /⋆ DVB-C ⋆/ - FE_OFDM /⋆ DVB-T ⋆/ - } fe_type_t; -</programlisting> - +<section id="fe-type-t"> +<title>Frontend type</title> + +<para>For historical reasons, frontend types are named by the type of modulation used in +transmission. The fontend types are given by fe_type_t type, defined as:</para> + +<table pgwide="1" frame="none" id="fe-type"> +<title>Frontend types</title> +<tgroup cols="3"> + &cs-def; + <thead> + <row> + <entry>fe_type</entry> + <entry>Description</entry> + <entry><link linkend="DTV-DELIVERY-SYSTEM">DTV_DELIVERY_SYSTEM</link> equivalent type</entry> + </row> + </thead> + <tbody valign="top"> + <row> + <entry id="FE_QPSK"><constant>FE_QPSK</constant></entry> + <entry>For DVB-S standard</entry> + <entry><constant>SYS_DVBS</constant></entry> + </row> + <row> + <entry id="FE_QAM"><constant>FE_QAM</constant></entry> + <entry>For DVB-C annex A/C standard</entry> + <entry><constant>SYS_DVBC_ANNEX_AC</constant></entry> + </row> + <row> + <entry id="FE_OFDM"><constant>FE_OFDM</constant></entry> + <entry>For DVB-T standard</entry> + <entry><constant>SYS_DVBT</constant></entry> + </row> + <row> + <entry id="FE_ATSC"><constant>FE_ATSC</constant></entry> + <entry>For ATSC standard (terrestrial) or for DVB-C Annex B (cable) used in US.</entry> + <entry><constant>SYS_ATSC</constant> (terrestrial) or <constant>SYS_DVBC_ANNEX_B</constant> (cable)</entry> + </row> +</tbody></tgroup></table> + +<para>Newer formats like DVB-S2, ISDB-T, ISDB-S and DVB-T2 are not described at the above, as they're +supported via the new <link linkend="FE_GET_SET_PROPERTY">FE_GET_PROPERTY/FE_GET_SET_PROPERTY</link> ioctl's, using the <link linkend="DTV-DELIVERY-SYSTEM">DTV_DELIVERY_SYSTEM</link> parameter. +</para> </section> -<section id="frontend_caps"> +<section id="fe-caps-t"> <title>frontend capabilities</title> <para>Capabilities describe what a frontend can do. Some capabilities can only be supported for @@ -76,7 +106,7 @@ a specific frontend type.</para> </programlisting> </section> -<section id="frontend_info"> +<section id="dvb-frontend-info"> <title>frontend information</title> <para>Information about the frontend ca be queried with @@ -99,7 +129,7 @@ a specific frontend type.</para> </programlisting> </section> -<section id="frontend_diseqc"> +<section id="dvb-diseqc-master-cmd"> <title>diseqc master command</title> <para>A message sent from the frontend to DiSEqC capable equipment.</para> @@ -110,7 +140,7 @@ a specific frontend type.</para> }; </programlisting> </section> -<section role="subsection"> +<section role="subsection" id="dvb-diseqc-slave-reply"> <title>diseqc slave reply</title> <para>A reply to the frontend from DiSEqC 2.0 capable equipment.</para> @@ -123,7 +153,7 @@ a specific frontend type.</para> </programlisting> </section> -<section id="frontend_diseqc_slave_reply"> +<section id="fe-sec-voltage-t"> <title>diseqc slave reply</title> <para>The voltage is usually used with non-DiSEqC capable LNBs to switch the polarzation (horizontal/vertical). When using DiSEqC epuipment this voltage has to be switched @@ -136,7 +166,7 @@ consistently to the DiSEqC commands as described in the DiSEqC spec.</para> </programlisting> </section> -<section id="frontend_sec_tone"> +<section id="fe-sec-tone-mode-t"> <title>SEC continuous tone</title> <para>The continuous 22KHz tone is usually used with non-DiSEqC capable LNBs to switch the @@ -151,7 +181,7 @@ spec.</para> </programlisting> </section> -<section id="frontend_sec_burst"> +<section id="fe-sec-mini-cmd-t"> <title>SEC tone burst</title> <para>The 22KHz tone burst is usually used with non-DiSEqC capable switches to select @@ -168,7 +198,7 @@ spec.</para> <para></para> </section> -<section id="frontend_status"> +<section id="fe-status-t"> <title>frontend status</title> <para>Several functions of the frontend device use the fe_status data type defined by</para> @@ -188,31 +218,54 @@ by</para> </section> -<section id="frontend_params"> +<section id="dvb-frontend-parameters"> <title>frontend parameters</title> <para>The kind of parameters passed to the frontend device for tuning depend on -the kind of hardware you are using. All kinds of parameters are combined as an -union in the FrontendParameters structure:</para> +the kind of hardware you are using.</para> +<para>The struct <constant>dvb_frontend_parameters</constant> uses an +union with specific per-system parameters. However, as newer delivery systems +required more data, the structure size weren't enough to fit, and just +extending its size would break the existing applications. So, those parameters +were replaced by the usage of <link linkend="FE_GET_SET_PROPERTY"> +<constant>FE_GET_PROPERTY/FE_SET_PROPERTY</constant></link> ioctl's. The +new API is flexible enough to add new parameters to existing delivery systems, +and to add newer delivery systems.</para> +<para>So, newer applications should use <link linkend="FE_GET_SET_PROPERTY"> +<constant>FE_GET_PROPERTY/FE_SET_PROPERTY</constant></link> instead, in +order to be able to support the newer System Delivery like DVB-S2, DVB-T2, +DVB-C2, ISDB, etc.</para> +<para>All kinds of parameters are combined as an union in the FrontendParameters structure:</para> <programlisting> - struct dvb_frontend_parameters { - uint32_t frequency; /⋆ (absolute) frequency in Hz for QAM/OFDM ⋆/ - /⋆ intermediate frequency in kHz for QPSK ⋆/ - fe_spectral_inversion_t inversion; - union { - struct dvb_qpsk_parameters qpsk; - struct dvb_qam_parameters qam; - struct dvb_ofdm_parameters ofdm; - } u; - }; +struct dvb_frontend_parameters { + uint32_t frequency; /⋆ (absolute) frequency in Hz for QAM/OFDM ⋆/ + /⋆ intermediate frequency in kHz for QPSK ⋆/ + fe_spectral_inversion_t inversion; + union { + struct dvb_qpsk_parameters qpsk; + struct dvb_qam_parameters qam; + struct dvb_ofdm_parameters ofdm; + struct dvb_vsb_parameters vsb; + } u; +}; </programlisting> -<para>For satellite QPSK frontends you have to use the <constant>QPSKParameters</constant> member defined by</para> +<para>In the case of QPSK frontends the <constant>frequency</constant> field specifies the intermediate +frequency, i.e. the offset which is effectively added to the local oscillator frequency (LOF) of +the LNB. The intermediate frequency has to be specified in units of kHz. For QAM and +OFDM frontends the <constant>frequency</constant> specifies the absolute frequency and is given in Hz. +</para> +<section id="dvb-qpsk-parameters"> +<title>QPSK parameters</title> +<para>For satellite QPSK frontends you have to use the <constant>dvb_qpsk_parameters</constant> structure:</para> <programlisting> struct dvb_qpsk_parameters { uint32_t symbol_rate; /⋆ symbol rate in Symbols per second ⋆/ fe_code_rate_t fec_inner; /⋆ forward error correction (see above) ⋆/ }; </programlisting> -<para>for cable QAM frontend you use the <constant>QAMParameters</constant> structure</para> +</section> +<section id="dvb-qam-parameters"> +<title>QAM parameters</title> +<para>for cable QAM frontend you use the <constant>dvb_qam_parameters</constant> structure:</para> <programlisting> struct dvb_qam_parameters { uint32_t symbol_rate; /⋆ symbol rate in Symbols per second ⋆/ @@ -220,8 +273,19 @@ union in the FrontendParameters structure:</para> fe_modulation_t modulation; /⋆ modulation type (see above) ⋆/ }; </programlisting> -<para>DVB-T frontends are supported by the <constant>OFDMParamters</constant> structure -</para> +</section> +<section id="dvb-vsb-parameters"> +<title>VSB parameters</title> +<para>ATSC frontends are supported by the <constant>dvb_vsb_parameters</constant> structure:</para> +<programlisting> +struct dvb_vsb_parameters { + fe_modulation_t modulation; /⋆ modulation type (see above) ⋆/ +}; +</programlisting> +</section> +<section id="dvb-ofdm-parameters"> +<title>OFDM parameters</title> +<para>DVB-T frontends are supported by the <constant>dvb_ofdm_parameters</constant> structure:</para> <programlisting> struct dvb_ofdm_parameters { fe_bandwidth_t bandwidth; @@ -233,86 +297,124 @@ union in the FrontendParameters structure:</para> fe_hierarchy_t hierarchy_information; }; </programlisting> -<para>In the case of QPSK frontends the <constant>Frequency</constant> field specifies the intermediate -frequency, i.e. the offset which is effectively added to the local oscillator frequency (LOF) of -the LNB. The intermediate frequency has to be specified in units of kHz. For QAM and -OFDM frontends the Frequency specifies the absolute frequency and is given in -Hz. -</para> +</section> +<section id="fe-spectral-inversion-t"> +<title>frontend spectral inversion</title> <para>The Inversion field can take one of these values: </para> <programlisting> - typedef enum fe_spectral_inversion { - INVERSION_OFF, - INVERSION_ON, - INVERSION_AUTO - } fe_spectral_inversion_t; +typedef enum fe_spectral_inversion { + INVERSION_OFF, + INVERSION_ON, + INVERSION_AUTO +} fe_spectral_inversion_t; </programlisting> <para>It indicates if spectral inversion should be presumed or not. In the automatic setting (<constant>INVERSION_AUTO</constant>) the hardware will try to figure out the correct setting by itself. </para> -<para>The possible values for the <constant>FEC_inner</constant> field are +</section> +<section id="fe-code-rate-t"> +<title>frontend code rate</title> +<para>The possible values for the <constant>fec_inner</constant> field used on +<link refend="dvb-qpsk-parameters"><constant>struct dvb_qpsk_parameters</constant></link> and +<link refend="dvb-qam-parameters"><constant>struct dvb_qam_parameters</constant></link> are: </para> <programlisting> - typedef enum fe_code_rate { - FEC_NONE = 0, - FEC_1_2, - FEC_2_3, - FEC_3_4, - FEC_4_5, - FEC_5_6, - FEC_6_7, - FEC_7_8, - FEC_8_9, - FEC_AUTO - } fe_code_rate_t; +typedef enum fe_code_rate { + FEC_NONE = 0, + FEC_1_2, + FEC_2_3, + FEC_3_4, + FEC_4_5, + FEC_5_6, + FEC_6_7, + FEC_7_8, + FEC_8_9, + FEC_AUTO, + FEC_3_5, + FEC_9_10, +} fe_code_rate_t; </programlisting> <para>which correspond to error correction rates of 1/2, 2/3, etc., no error correction or auto detection. </para> -<para>For cable and terrestrial frontends (QAM and OFDM) one also has to specify the quadrature -modulation mode which can be one of the following: +</section> +<section id="fe-modulation-t"> +<title>frontend modulation type for QAM, OFDM and VSB</title> +<para>For cable and terrestrial frontends, e. g. for +<link refend="dvb-qam-parameters"><constant>struct dvb_qpsk_parameters</constant></link>, +<link refend="dvb-ofdm-parameters"><constant>struct dvb_qam_parameters</constant></link> and +<link refend="dvb-vsb-parameters"><constant>struct dvb_qam_parameters</constant></link>, +it needs to specify the quadrature modulation mode which can be one of the following: </para> <programlisting> typedef enum fe_modulation { - QPSK, - QAM_16, - QAM_32, - QAM_64, - QAM_128, - QAM_256, - QAM_AUTO + QPSK, + QAM_16, + QAM_32, + QAM_64, + QAM_128, + QAM_256, + QAM_AUTO, + VSB_8, + VSB_16, + PSK_8, + APSK_16, + APSK_32, + DQPSK, } fe_modulation_t; </programlisting> +</section> <para>Finally, there are several more parameters for OFDM: </para> +<section id="fe-transmit-mode-t"> +<title>Number of carriers per channel</title> <programlisting> - typedef enum fe_transmit_mode { - TRANSMISSION_MODE_2K, - TRANSMISSION_MODE_8K, - TRANSMISSION_MODE_AUTO +typedef enum fe_transmit_mode { + TRANSMISSION_MODE_2K, + TRANSMISSION_MODE_8K, + TRANSMISSION_MODE_AUTO, + TRANSMISSION_MODE_4K, + TRANSMISSION_MODE_1K, + TRANSMISSION_MODE_16K, + TRANSMISSION_MODE_32K, } fe_transmit_mode_t; </programlisting> - <programlisting> - typedef enum fe_bandwidth { - BANDWIDTH_8_MHZ, - BANDWIDTH_7_MHZ, - BANDWIDTH_6_MHZ, - BANDWIDTH_AUTO - } fe_bandwidth_t; +</section> +<section id="fe-bandwidth-t"> +<title>frontend bandwidth</title> +<programlisting> +typedef enum fe_bandwidth { + BANDWIDTH_8_MHZ, + BANDWIDTH_7_MHZ, + BANDWIDTH_6_MHZ, + BANDWIDTH_AUTO, + BANDWIDTH_5_MHZ, + BANDWIDTH_10_MHZ, + BANDWIDTH_1_712_MHZ, +} fe_bandwidth_t; </programlisting> - <programlisting> - typedef enum fe_guard_interval { - GUARD_INTERVAL_1_32, - GUARD_INTERVAL_1_16, - GUARD_INTERVAL_1_8, - GUARD_INTERVAL_1_4, - GUARD_INTERVAL_AUTO - } fe_guard_interval_t; +</section> +<section id="fe-guard-interval-t"> +<title>frontend guard inverval</title> +<programlisting> +typedef enum fe_guard_interval { + GUARD_INTERVAL_1_32, + GUARD_INTERVAL_1_16, + GUARD_INTERVAL_1_8, + GUARD_INTERVAL_1_4, + GUARD_INTERVAL_AUTO, + GUARD_INTERVAL_1_128, + GUARD_INTERVAL_19_128, + GUARD_INTERVAL_19_256, +} fe_guard_interval_t; </programlisting> - <programlisting> - typedef enum fe_hierarchy { +</section> +<section id="fe-hierarchy-t"> +<title>frontend hierarchy</title> +<programlisting> +typedef enum fe_hierarchy { HIERARCHY_NONE, HIERARCHY_1, HIERARCHY_2, @@ -320,10 +422,11 @@ modulation mode which can be one of the following: HIERARCHY_AUTO } fe_hierarchy_t; </programlisting> +</section> </section> -<section id="frontend_events"> +<section id="dvb-frontend-event"> <title>frontend events</title> <programlisting> struct dvb_frontend_event { @@ -412,8 +515,7 @@ modulation mode which can be one of the following: <para>(blocking mode is the default)</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +<para>RETURN VALUE</para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> <para>ENODEV</para> @@ -473,8 +575,7 @@ modulation mode which can be one of the following: <para>File descriptor returned by a previous call to open().</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +<para>RETURN VALUE</para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> <para>EBADF</para> @@ -530,8 +631,7 @@ modulation mode which can be one of the following: to be stored.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +<para>RETURN VALUE</para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> <para>EBADF</para> @@ -592,38 +692,8 @@ modulation mode which can be one of the following: <para>The bit error rate is stored into *ber.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>ber points to invalid address.</para> -</entry> - </row><row><entry - align="char"> -<para>ENOSIGNAL</para> -</entry><entry - align="char"> -<para>There is no signal, thus no meaningful bit error rate. Also - returned if the front-end is not turned on.</para> -</entry> - </row><row><entry - align="char"> -<para>ENOSYS</para> -</entry><entry - align="char"> -<para>Function not available for this device.</para> -</entry> - </row></tbody></tgroup></informaltable> + +&return-value-dvb; </section> <section id="FE_READ_SNR"> @@ -670,38 +740,7 @@ modulation mode which can be one of the following: </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>snr points to invalid address.</para> -</entry> - </row><row><entry - align="char"> -<para>ENOSIGNAL</para> -</entry><entry - align="char"> -<para>There is no signal, thus no meaningful signal strength - value. Also returned if front-end is not turned on.</para> -</entry> - </row><row><entry - align="char"> -<para>ENOSYS</para> -</entry><entry - align="char"> -<para>Function not available for this device.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; </section> <section id="FE_READ_SIGNAL_STRENGTH"> @@ -748,38 +787,8 @@ modulation mode which can be one of the following: <para>The signal strength value is stored into *strength.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>status points to invalid address.</para> -</entry> - </row><row><entry - align="char"> -<para>ENOSIGNAL</para> -</entry><entry - align="char"> -<para>There is no signal, thus no meaningful signal strength - value. Also returned if front-end is not turned on.</para> -</entry> - </row><row><entry - align="char"> -<para>ENOSYS</para> -</entry><entry - align="char"> -<para>Function not available for this device.</para> -</entry> - </row></tbody></tgroup></informaltable> + +&return-value-dvb; </section> <section id="FE_READ_UNCORRECTED_BLOCKS"> @@ -833,30 +842,8 @@ modulation mode which can be one of the following: so far.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>ublocks points to invalid address.</para> -</entry> - </row><row><entry - align="char"> -<para>ENOSYS</para> -</entry><entry - align="char"> -<para>Function not available for this device.</para> -</entry> - </row></tbody></tgroup></informaltable> + +&return-value-dvb; </section> <section id="FE_SET_FRONTEND"> @@ -909,24 +896,10 @@ modulation mode which can be one of the following: <para>Points to parameters for tuning operation.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> + +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>p points to invalid address.</para> -</entry> - </row><row><entry - align="char"> <para>EINVAL</para> </entry><entry align="char"> @@ -982,25 +955,9 @@ modulation mode which can be one of the following: </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> - +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>p points to invalid address.</para> -</entry> - </row><row><entry - align="char"> <para>EINVAL</para> </entry><entry align="char"> @@ -1084,24 +1041,9 @@ modulation mode which can be one of the following: </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>ev points to invalid address.</para> -</entry> - </row><row><entry - align="char"> <para>EWOULDBLOCK</para> </entry><entry align="char"> @@ -1113,11 +1055,6 @@ modulation mode which can be one of the following: <para>EOVERFLOW</para> </entry><entry align="char"> -</entry> - </row><row><entry - align="char"> -</entry><entry - align="char"> <para>Overflow in event queue - one or more events were lost.</para> </entry> </row></tbody></tgroup></informaltable> @@ -1170,23 +1107,7 @@ modulation mode which can be one of the following: to be stored.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>info points to invalid address.</para> -</entry> -</row></tbody></tgroup></informaltable> +&return-value-dvb; </section> <section id="FE_DISEQC_RESET_OVERLOAD"> @@ -1229,30 +1150,7 @@ modulation mode which can be one of the following: </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EPERM</para> -</entry><entry - align="char"> -<para>Permission denied (needs read/write access).</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error in the device driver.</para> -</entry> -</row></tbody></tgroup></informaltable> +&return-value-dvb; </section> <section id="FE_DISEQC_SEND_MASTER_CMD"> @@ -1302,45 +1200,7 @@ modulation mode which can be one of the following: </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>Seq points to an invalid address.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>The data structure referred to by seq is invalid in some - way.</para> -</entry> - </row><row><entry - align="char"> -<para>EPERM</para> -</entry><entry - align="char"> -<para>Permission denied (needs read/write access).</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error in the device driver.</para> -</entry> -</row></tbody></tgroup></informaltable> +&return-value-dvb; </section> <section id="FE_DISEQC_RECV_SLAVE_REPLY"> @@ -1390,45 +1250,7 @@ modulation mode which can be one of the following: <para>Pointer to the command to be received.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>Seq points to an invalid address.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>The data structure referred to by seq is invalid in some - way.</para> -</entry> - </row><row><entry - align="char"> -<para>EPERM</para> -</entry><entry - align="char"> -<para>Permission denied (needs read/write access).</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error in the device driver.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; </section> <section id="FE_DISEQC_SEND_BURST"> @@ -1476,45 +1298,7 @@ modulation mode which can be one of the following: </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>Seq points to an invalid address.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>The data structure referred to by seq is invalid in some - way.</para> -</entry> - </row><row><entry - align="char"> -<para>EPERM</para> -</entry><entry - align="char"> -<para>Permission denied (needs read/write access).</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error in the device driver.</para> -</entry> -</row></tbody></tgroup></informaltable> +&return-value-dvb; </section> <section id="FE_SET_TONE"> @@ -1560,44 +1344,7 @@ modulation mode which can be one of the following: <para>The requested tone generation mode (on/off).</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>ENODEV</para> -</entry><entry - align="char"> -<para>Device driver not loaded/available.</para> -</entry> - </row><row><entry - align="char"> -<para>EBUSY</para> -</entry><entry - align="char"> -<para>Device or resource busy.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Invalid argument.</para> -</entry> - </row><row><entry - align="char"> -<para>EPERM</para> -</entry><entry - align="char"> -<para>File not opened with read permissions.</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error in the device driver.</para> -</entry> -</row></tbody></tgroup></informaltable> +&return-value-dvb; </section> <section id="FE_SET_VOLTAGE"> @@ -1645,44 +1392,7 @@ modulation mode which can be one of the following: </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>ENODEV</para> -</entry><entry - align="char"> -<para>Device driver not loaded/available.</para> -</entry> - </row><row><entry - align="char"> -<para>EBUSY</para> -</entry><entry - align="char"> -<para>Device or resource busy.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Invalid argument.</para> -</entry> - </row><row><entry - align="char"> -<para>EPERM</para> -</entry><entry - align="char"> -<para>File not opened with read permissions.</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error in the device driver.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; </section> <section id="FE_ENABLE_HIGH_LNB_VOLTAGE"> @@ -1731,44 +1441,7 @@ modulation mode which can be one of the following: </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>ENODEV</para> -</entry><entry - align="char"> -<para>Device driver not loaded/available.</para> -</entry> - </row><row><entry - align="char"> -<para>EBUSY</para> -</entry><entry - align="char"> -<para>Device or resource busy.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Invalid argument.</para> -</entry> - </row><row><entry - align="char"> -<para>EPERM</para> -</entry><entry - align="char"> -<para>File not opened with read permissions.</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error in the device driver.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; </section> <section id="FE_SET_FRONTEND_TUNE_MODE"> @@ -1800,11 +1473,7 @@ FE_TUNE_MODE_ONESHOT When set, this flag will disable any zigzagging or other "n </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS</para> -<informaltable><tgroup cols="2"><tbody><row> -<entry align="char"><para>EINVAL</para></entry> -<entry align="char"><para>Invalid argument.</para></entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; </section> <section id="FE_DISHNETWORK_SEND_LEGACY_CMD"> @@ -1838,12 +1507,7 @@ sends the specified raw cmd to the dish via DISEqC. </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS</para> -<informaltable><tgroup cols="1"><tbody><row> -<entry align="char"> - <para>There are no errors in use for this call</para> -</entry> -</row></tbody></tgroup></informaltable> +&return-value-dvb; </section> </section> diff --git a/Documentation/DocBook/dvb/intro.xml b/Documentation/DocBook/media/dvb/intro.xml index 0dc83f672ea..c75dc7cc3e9 100644 --- a/Documentation/DocBook/dvb/intro.xml +++ b/Documentation/DocBook/media/dvb/intro.xml @@ -154,6 +154,10 @@ are called:</para> </listitem> <listitem> +<para><emphasis role="tt">/dev/dvb/adapterN/dvrM</emphasis>,</para> +</listitem> + <listitem> + <para><emphasis role="tt">/dev/dvb/adapterN/caM</emphasis>,</para></listitem></itemizedlist> <para>where N enumerates the DVB PCI cards in a system starting @@ -175,10 +179,27 @@ the devices are described in the following chapters.</para> The DVB API include files should be included in application sources with a partial path like:</para> - +<programlisting> + #include <linux/dvb/audio.h> +</programlisting> +<programlisting> + #include <linux/dvb/ca.h> +</programlisting> +<programlisting> + #include <linux/dvb/dmx.h> +</programlisting> <programlisting> #include <linux/dvb/frontend.h> </programlisting> +<programlisting> + #include <linux/dvb/net.h> +</programlisting> +<programlisting> + #include <linux/dvb/osd.h> +</programlisting> +<programlisting> + #include <linux/dvb/video.h> +</programlisting> <para>To enable applications to support different API version, an additional include file <emphasis diff --git a/Documentation/DocBook/dvb/kdapi.xml b/Documentation/DocBook/media/dvb/kdapi.xml index 6c67481eaa4..6c67481eaa4 100644 --- a/Documentation/DocBook/dvb/kdapi.xml +++ b/Documentation/DocBook/media/dvb/kdapi.xml diff --git a/Documentation/DocBook/dvb/net.xml b/Documentation/DocBook/media/dvb/net.xml index 94e388d94c0..67d37e5ce59 100644 --- a/Documentation/DocBook/dvb/net.xml +++ b/Documentation/DocBook/media/dvb/net.xml @@ -7,6 +7,23 @@ application. </para> <section id="dvb_net_types"> <title>DVB Net Data Types</title> + +<section id="dvb-net-if"> +<title>struct dvb_net_if</title> +<programlisting> +struct dvb_net_if { + __u16 pid; + __u16 if_num; + __u8 feedtype; +#define DVB_NET_FEEDTYPE_MPE 0 /⋆ multi protocol encapsulation ⋆/ +#define DVB_NET_FEEDTYPE_ULE 1 /⋆ ultra lightweight encapsulation ⋆/ +}; +</programlisting> +</section> + +</section> +<section id="net_fcalls"> +<title>DVB net Function Calls</title> <para>To be written… </para> </section> diff --git a/Documentation/DocBook/dvb/video.xml b/Documentation/DocBook/media/dvb/video.xml index 7bb287e67c8..25fb823226b 100644 --- a/Documentation/DocBook/dvb/video.xml +++ b/Documentation/DocBook/media/dvb/video.xml @@ -18,15 +18,16 @@ supported on some MPEG decoders made for DVD playback. <section id="video_types"> <title>Video Data Types</title> -<section id="video_format_t"> +<section id="video-format-t"> <title>video_format_t</title> <para>The <emphasis role="tt">video_format_t</emphasis> data type defined by </para> <programlisting> - typedef enum { - VIDEO_FORMAT_4_3, - VIDEO_FORMAT_16_9 - } video_format_t; +typedef enum { + VIDEO_FORMAT_4_3, /⋆ Select 4:3 format ⋆/ + VIDEO_FORMAT_16_9, /⋆ Select 16:9 format. ⋆/ + VIDEO_FORMAT_221_1 /⋆ 2.21:1 ⋆/ +} video_format_t; </programlisting> <para>is used in the VIDEO_SET_FORMAT function (??) to tell the driver which aspect ratio the output hardware (e.g. TV) has. It is also used in the data structures video_status @@ -36,34 +37,36 @@ stream. </para> </section> -<section id="video_display_format_t"> -<title>video_display_format_t</title> +<section id="video-displayformat-t"> +<title>video_displayformat_t</title> <para>In case the display format of the video stream and of the display hardware differ the application has to specify how to handle the cropping of the picture. This can be done using the VIDEO_SET_DISPLAY_FORMAT call (??) which accepts </para> <programlisting> - typedef enum { - VIDEO_PAN_SCAN, - VIDEO_LETTER_BOX, - VIDEO_CENTER_CUT_OUT - } video_display_format_t; +typedef enum { + VIDEO_PAN_SCAN, /⋆ use pan and scan format ⋆/ + VIDEO_LETTER_BOX, /⋆ use letterbox format ⋆/ + VIDEO_CENTER_CUT_OUT /⋆ use center cut out format ⋆/ +} video_displayformat_t; </programlisting> <para>as argument. </para> </section> -<section id="video_stream_source"> +<section id="video-stream-source-t"> <title>video stream source</title> <para>The video stream source is set through the VIDEO_SELECT_SOURCE call and can take the following values, depending on whether we are replaying from an internal (demuxer) or external (user write) source. </para> <programlisting> - typedef enum { - VIDEO_SOURCE_DEMUX, - VIDEO_SOURCE_MEMORY - } video_stream_source_t; +typedef enum { + VIDEO_SOURCE_DEMUX, /⋆ Select the demux as the main source ⋆/ + VIDEO_SOURCE_MEMORY /⋆ If this source is selected, the stream + comes from the user through the write + system call ⋆/ +} video_stream_source_t; </programlisting> <para>VIDEO_SOURCE_DEMUX selects the demultiplexer (fed either by the frontend or the DVR device) as the source of the video stream. If VIDEO_SOURCE_MEMORY @@ -72,49 +75,98 @@ call. </para> </section> -<section id="video_play_state"> +<section id="video-play-state-t"> <title>video play state</title> <para>The following values can be returned by the VIDEO_GET_STATUS call representing the state of video playback. </para> <programlisting> - typedef enum { - VIDEO_STOPPED, - VIDEO_PLAYING, - VIDEO_FREEZED - } video_play_state_t; +typedef enum { + VIDEO_STOPPED, /⋆ Video is stopped ⋆/ + VIDEO_PLAYING, /⋆ Video is currently playing ⋆/ + VIDEO_FREEZED /⋆ Video is freezed ⋆/ +} video_play_state_t; </programlisting> </section> -<section id="video_event"> +<section id="video-command"> +<para>The structure must be zeroed before use by the application +This ensures it can be extended safely in the future.</para> +<title>struct video-command</title> +<programlisting> +struct video_command { + __u32 cmd; + __u32 flags; + union { + struct { + __u64 pts; + } stop; + + struct { + /⋆ 0 or 1000 specifies normal speed, + 1 specifies forward single stepping, + -1 specifies backward single stepping, + >>1: playback at speed/1000 of the normal speed, + <-1: reverse playback at (-speed/1000) of the normal speed. ⋆/ + __s32 speed; + __u32 format; + } play; + + struct { + __u32 data[16]; + } raw; + }; +}; +</programlisting> +</section> + +<section id="video-size-t"> +<title>struct video_size-t</title> +<programlisting> +typedef struct { + int w; + int h; + video_format_t aspect_ratio; +} video_size_t; +</programlisting> +</section> + + +<section id="video-event"> <title>struct video_event</title> <para>The following is the structure of a video event as it is returned by the VIDEO_GET_EVENT call. </para> <programlisting> - struct video_event { - int32_t type; - time_t timestamp; - union { - video_format_t video_format; - } u; - }; +struct video_event { + __s32 type; +#define VIDEO_EVENT_SIZE_CHANGED 1 +#define VIDEO_EVENT_FRAME_RATE_CHANGED 2 +#define VIDEO_EVENT_DECODER_STOPPED 3 +#define VIDEO_EVENT_VSYNC 4 + __kernel_time_t timestamp; + union { + video_size_t size; + unsigned int frame_rate; /⋆ in frames per 1000sec ⋆/ + unsigned char vsync_field; /⋆ unknown/odd/even/progressive ⋆/ + } u; +}; </programlisting> </section> -<section id="video_status"> +<section id="video-status"> <title>struct video_status</title> <para>The VIDEO_GET_STATUS call returns the following structure informing about various states of the playback operation. </para> <programlisting> - struct video_status { - boolean video_blank; - video_play_state_t play_state; - video_stream_source_t stream_source; - video_format_t video_format; - video_displayformat_t display_format; - }; +struct video_status { + int video_blank; /⋆ blank video on freeze? ⋆/ + video_play_state_t play_state; /⋆ current state of playback ⋆/ + video_stream_source_t stream_source; /⋆ current source (demux/memory) ⋆/ + video_format_t video_format; /⋆ current aspect ratio of stream ⋆/ + video_displayformat_t display_format;/⋆ selected cropping mode ⋆/ +}; </programlisting> <para>If video_blank is set video will be blanked out if the channel is changed or if playback is stopped. Otherwise, the last picture will be displayed. play_state indicates if the video is @@ -127,17 +179,17 @@ device. </para> </section> -<section id="video_still_picture"> +<section id="video-still-picture"> <title>struct video_still_picture</title> <para>An I-frame displayed via the VIDEO_STILLPICTURE call is passed on within the following structure. </para> <programlisting> - /⋆ pointer to and size of a single iframe in memory ⋆/ - struct video_still_picture { - char ⋆iFrame; - int32_t size; - }; +/⋆ pointer to and size of a single iframe in memory ⋆/ +struct video_still_picture { + char ⋆iFrame; /⋆ pointer to a single iframe in memory ⋆/ + int32_t size; +}; </programlisting> </section> @@ -164,26 +216,26 @@ bits set according to the hardwares capabilities. </programlisting> </section> -<section id="video_system"> +<section id="video-system"> <title>video system</title> <para>A call to VIDEO_SET_SYSTEM sets the desired video system for TV output. The following system types can be set: </para> <programlisting> - typedef enum { - VIDEO_SYSTEM_PAL, - VIDEO_SYSTEM_NTSC, - VIDEO_SYSTEM_PALN, - VIDEO_SYSTEM_PALNc, - VIDEO_SYSTEM_PALM, - VIDEO_SYSTEM_NTSC60, - VIDEO_SYSTEM_PAL60, - VIDEO_SYSTEM_PALM60 - } video_system_t; +typedef enum { + VIDEO_SYSTEM_PAL, + VIDEO_SYSTEM_NTSC, + VIDEO_SYSTEM_PALN, + VIDEO_SYSTEM_PALNc, + VIDEO_SYSTEM_PALM, + VIDEO_SYSTEM_NTSC60, + VIDEO_SYSTEM_PAL60, + VIDEO_SYSTEM_PALM60 +} video_system_t; </programlisting> </section> -<section id="video_highlight"> +<section id="video-highlight"> <title>struct video_highlight</title> <para>Calling the ioctl VIDEO_SET_HIGHLIGHTS posts the SPU highlight information. The call expects the following format for that information: @@ -210,7 +262,7 @@ call expects the following format for that information: </programlisting> </section> -<section id="video_spu"> +<section id="video-spu"> <title>video SPU</title> <para>Calling VIDEO_SET_SPU deactivates or activates SPU decoding, according to the following format: @@ -224,7 +276,7 @@ following format: </programlisting> </section> -<section id="video_spu_palette"> +<section id="video-spu-palette"> <title>video SPU palette</title> <para>The following structure is used to set the SPU palette by calling VIDEO_SPU_PALETTE: </para> @@ -237,7 +289,7 @@ following format: </programlisting> </section> -<section id="video_navi_pack"> +<section id="video-navi-pack"> <title>video NAVI pack</title> <para>In order to get the navigational data the following structure has to be passed to the ioctl VIDEO_GET_NAVI: @@ -252,7 +304,7 @@ VIDEO_GET_NAVI: </section> -<section id="video_attributes"> +<section id="video-attributes-t"> <title>video attributes</title> <para>The following attributes can be set by a call to VIDEO_SET_ATTRIBUTES: </para> @@ -347,8 +399,7 @@ VIDEO_GET_NAVI: <para>(blocking mode is the default)</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +<para>RETURN VALUE</para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> <para>ENODEV</para> @@ -406,8 +457,7 @@ VIDEO_GET_NAVI: <para>File descriptor returned by a previous call to open().</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +<para>RETURN VALUE</para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> <para>EBADF</para> @@ -462,8 +512,7 @@ VIDEO_GET_NAVI: <para>Size of buf.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +<para>RETURN VALUE</para> <informaltable><tgroup cols="2"><tbody><row><entry align="char"> <para>EPERM</para> @@ -488,7 +537,7 @@ VIDEO_GET_NAVI: </entry> </row></tbody></tgroup></informaltable> -</section><section +</section><section id="VIDEO_STOP" role="subsection"><title>VIDEO_STOP</title> <para>DESCRIPTION </para> @@ -543,26 +592,9 @@ role="subsection"><title>VIDEO_STOP</title> <para>FALSE: Show last decoded frame.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error, possibly in the communication with the - DVB subsystem.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="VIDEO_PLAY" role="subsection"><title>VIDEO_PLAY</title> <para>DESCRIPTION </para> @@ -596,26 +628,9 @@ role="subsection"><title>VIDEO_PLAY</title> <para>Equals VIDEO_PLAY for this command.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error, possibly in the communication with the - DVB subsystem.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="VIDEO_FREEZE" role="subsection"><title>VIDEO_FREEZE</title> <para>DESCRIPTION </para> @@ -653,26 +668,9 @@ role="subsection"><title>VIDEO_FREEZE</title> <para>Equals VIDEO_FREEZE for this command.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error, possibly in the communication with the - DVB subsystem.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="VIDEO_CONTINUE" role="subsection"><title>VIDEO_CONTINUE</title> <para>DESCRIPTION </para> @@ -706,26 +704,9 @@ role="subsection"><title>VIDEO_CONTINUE</title> <para>Equals VIDEO_CONTINUE for this command.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error, possibly in the communication with the - DVB subsystem.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="VIDEO_SELECT_SOURCE" role="subsection"><title>VIDEO_SELECT_SOURCE</title> <para>DESCRIPTION </para> @@ -769,26 +750,9 @@ role="subsection"><title>VIDEO_SELECT_SOURCE</title> <para>Indicates which source shall be used for the Video stream.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error, possibly in the communication with the - DVB subsystem.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="VIDEO_SET_BLANK" role="subsection"><title>VIDEO_SET_BLANK</title> <para>DESCRIPTION </para> @@ -835,33 +799,9 @@ role="subsection"><title>VIDEO_SET_BLANK</title> <para>FALSE: Show last decoded frame.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error, possibly in the communication with the - DVB subsystem.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Illegal input parameter</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="VIDEO_GET_STATUS" role="subsection"><title>VIDEO_GET_STATUS</title> <para>DESCRIPTION </para> @@ -903,33 +843,9 @@ role="subsection"><title>VIDEO_GET_STATUS</title> <para>Returns the current status of the Video Device.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error, possibly in the communication with the - DVB subsystem.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>status points to invalid address</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="VIDEO_GET_EVENT" role="subsection"><title>VIDEO_GET_EVENT</title> <para>DESCRIPTION </para> @@ -980,24 +896,9 @@ role="subsection"><title>VIDEO_GET_EVENT</title> stored.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>ev points to invalid address</para> -</entry> - </row><row><entry - align="char"> <para>EWOULDBLOCK</para> </entry><entry align="char"> @@ -1009,16 +910,11 @@ role="subsection"><title>VIDEO_GET_EVENT</title> <para>EOVERFLOW</para> </entry><entry align="char"> -</entry> - </row><row><entry - align="char"> -</entry><entry - align="char"> <para>Overflow in event queue - one or more events were lost.</para> </entry> </row></tbody></tgroup></informaltable> -</section><section +</section><section id="VIDEO_SET_DISPLAY_FORMAT" role="subsection"><title>VIDEO_SET_DISPLAY_FORMAT</title> <para>DESCRIPTION </para> @@ -1063,32 +959,9 @@ role="subsection"><title>VIDEO_SET_DISPLAY_FORMAT</title> <para>Selects the video format to be used.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Illegal parameter format.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="VIDEO_STILLPICTURE" role="subsection"><title>VIDEO_STILLPICTURE</title> <para>DESCRIPTION </para> @@ -1133,32 +1006,9 @@ role="subsection"><title>VIDEO_STILLPICTURE</title> <para>Pointer to a location where an I-frame and size is stored.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>sp points to an invalid iframe.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="VIDEO_FAST_FORWARD" role="subsection"><title>VIDEO_FAST_FORWARD</title> <para>DESCRIPTION </para> @@ -1200,39 +1050,17 @@ role="subsection"><title>VIDEO_FAST_FORWARD</title> <para>The number of frames to skip.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> <para>EPERM</para> </entry><entry align="char"> <para>Mode VIDEO_SOURCE_MEMORY not selected.</para> </entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Illegal parameter format.</para> -</entry> </row></tbody></tgroup></informaltable> -</section><section +</section><section id="VIDEO_SLOWMOTION" role="subsection"><title>VIDEO_SLOWMOTION</title> <para>DESCRIPTION </para> @@ -1274,39 +1102,17 @@ role="subsection"><title>VIDEO_SLOWMOTION</title> <para>The number of times to repeat each frame.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> <para>EPERM</para> </entry><entry align="char"> <para>Mode VIDEO_SOURCE_MEMORY not selected.</para> </entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>Illegal parameter format.</para> -</entry> </row></tbody></tgroup></informaltable> -</section><section +</section><section id="VIDEO_GET_CAPABILITIES" role="subsection"><title>VIDEO_GET_CAPABILITIES</title> <para>DESCRIPTION </para> @@ -1350,25 +1156,9 @@ role="subsection"><title>VIDEO_GET_CAPABILITIES</title> information.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EFAULT</para> -</entry><entry - align="char"> -<para>cap points to an invalid iframe.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="VIDEO_SET_ID" role="subsection"><title>VIDEO_SET_ID</title> <para>DESCRIPTION </para> @@ -1410,24 +1200,9 @@ role="subsection"><title>VIDEO_SET_ID</title> <para>video sub-stream id</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EINTERNAL</para> -</entry><entry - align="char"> -<para>Internal error.</para> -</entry> - </row><row><entry - align="char"> <para>EINVAL</para> </entry><entry align="char"> @@ -1435,7 +1210,7 @@ role="subsection"><title>VIDEO_SET_ID</title> </entry> </row></tbody></tgroup></informaltable> -</section><section +</section><section id="VIDEO_CLEAR_BUFFER" role="subsection"><title>VIDEO_CLEAR_BUFFER</title> <para>DESCRIPTION </para> @@ -1468,18 +1243,9 @@ role="subsection"><title>VIDEO_CLEAR_BUFFER</title> <para>Equals VIDEO_CLEAR_BUFFER for this command.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="VIDEO_SET_STREAMTYPE" role="subsection"><title>VIDEO_SET_STREAMTYPE</title> <para>DESCRIPTION </para> @@ -1522,25 +1288,9 @@ role="subsection"><title>VIDEO_SET_STREAMTYPE</title> <para>stream type</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>type is not a valid or supported stream type.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="VIDEO_SET_FORMAT" role="subsection"><title>VIDEO_SET_FORMAT</title> <para>DESCRIPTION </para> @@ -1583,17 +1333,9 @@ role="subsection"><title>VIDEO_SET_FORMAT</title> <para>video format of TV as defined in section ??.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> <para>EINVAL</para> </entry><entry align="char"> @@ -1601,7 +1343,7 @@ role="subsection"><title>VIDEO_SET_FORMAT</title> </entry> </row></tbody></tgroup></informaltable> -</section><section +</section><section id="VIDEO_SET_SYSTEM" role="subsection"><title>VIDEO_SET_SYSTEM</title> <para>DESCRIPTION </para> @@ -1645,17 +1387,9 @@ role="subsection"><title>VIDEO_SET_SYSTEM</title> <para>video system of TV output.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> <para>EINVAL</para> </entry><entry align="char"> @@ -1663,7 +1397,7 @@ role="subsection"><title>VIDEO_SET_SYSTEM</title> </entry> </row></tbody></tgroup></informaltable> -</section><section +</section><section id="VIDEO_SET_HIGHLIGHT" role="subsection"><title>VIDEO_SET_HIGHLIGHT</title> <para>DESCRIPTION </para> @@ -1705,25 +1439,9 @@ role="subsection"><title>VIDEO_SET_HIGHLIGHT</title> <para>SPU Highlight information according to section ??.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> -<informaltable><tgroup cols="2"><tbody><row><entry - align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor.</para> -</entry> - </row><row><entry - align="char"> -<para>EINVAL</para> -</entry><entry - align="char"> -<para>input is not a valid highlight setting.</para> -</entry> - </row></tbody></tgroup></informaltable> +&return-value-dvb; -</section><section +</section><section id="VIDEO_SET_SPU" role="subsection"><title>VIDEO_SET_SPU</title> <para>DESCRIPTION </para> @@ -1766,17 +1484,9 @@ role="subsection"><title>VIDEO_SET_SPU</title> to section ??.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> <para>EINVAL</para> </entry><entry align="char"> @@ -1785,7 +1495,7 @@ role="subsection"><title>VIDEO_SET_SPU</title> </entry> </row></tbody></tgroup></informaltable> -</section><section +</section><section id="VIDEO_SET_SPU_PALETTE" role="subsection"><title>VIDEO_SET_SPU_PALETTE</title> <para>DESCRIPTION </para> @@ -1827,17 +1537,9 @@ role="subsection"><title>VIDEO_SET_SPU_PALETTE</title> <para>SPU palette according to section ??.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> <para>EINVAL</para> </entry><entry align="char"> @@ -1845,7 +1547,7 @@ role="subsection"><title>VIDEO_SET_SPU_PALETTE</title> </entry> </row></tbody></tgroup></informaltable> -</section><section +</section><section id="VIDEO_GET_NAVI" role="subsection"><title>VIDEO_GET_NAVI</title> <para>DESCRIPTION </para> @@ -1889,17 +1591,9 @@ role="subsection"><title>VIDEO_GET_NAVI</title> ??.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> <para>EFAULT</para> </entry><entry align="char"> @@ -1907,7 +1601,7 @@ role="subsection"><title>VIDEO_GET_NAVI</title> </entry> </row></tbody></tgroup></informaltable> -</section><section +</section><section id="VIDEO_SET_ATTRIBUTES" role="subsection"><title>VIDEO_SET_ATTRIBUTES</title> <para>DESCRIPTION </para> @@ -1951,17 +1645,9 @@ role="subsection"><title>VIDEO_SET_ATTRIBUTES</title> <para>video attributes according to section ??.</para> </entry> </row></tbody></tgroup></informaltable> -<para>ERRORS -</para> +&return-value-dvb; <informaltable><tgroup cols="2"><tbody><row><entry align="char"> -<para>EBADF</para> -</entry><entry - align="char"> -<para>fd is not a valid open file descriptor</para> -</entry> - </row><row><entry - align="char"> <para>EINVAL</para> </entry><entry align="char"> diff --git a/Documentation/DocBook/media/dvbstb.png.b64 b/Documentation/DocBook/media/dvbstb.png.b64 new file mode 100644 index 00000000000..e8b52fde3d1 --- /dev/null +++ b/Documentation/DocBook/media/dvbstb.png.b64 @@ -0,0 +1,398 @@ +iVBORw0KGgoAAAANSUhEUgAAAzMAAAGaCAYAAAA7Jx25AAAABmJLR0QAAAAAAAD5Q7t/AAAACXBI +WXMAAA3XAAANiQFmEOuiAAAgAElEQVR42uzdd1RU18I28GdgKFZUBE0saFA0KoqFFkEhKhbAQmxJ +bIkNNEpMEUwsMZarJMZrw4KxRExQczUqil0jRBA1GAjGQqLYC4TemdnfH76cj3HodYDntxaLmTll 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+iM9GbfE0p2V0g5QUk2BJSbCkJFhSUoPW/wfr5tj8wgE+HwAAAABJRU5ErkJggg== diff --git a/Documentation/DocBook/v4l/.gitignore b/Documentation/DocBook/media/v4l/.gitignore index d7ec32eafac..d7ec32eafac 100644 --- a/Documentation/DocBook/v4l/.gitignore +++ b/Documentation/DocBook/media/v4l/.gitignore diff --git a/Documentation/DocBook/v4l/biblio.xml b/Documentation/DocBook/media/v4l/biblio.xml index afc8a0dd260..afc8a0dd260 100644 --- a/Documentation/DocBook/v4l/biblio.xml +++ b/Documentation/DocBook/media/v4l/biblio.xml diff --git a/Documentation/DocBook/v4l/capture.c.xml b/Documentation/DocBook/media/v4l/capture.c.xml index 1c5c49a2de5..1c5c49a2de5 100644 --- a/Documentation/DocBook/v4l/capture.c.xml +++ b/Documentation/DocBook/media/v4l/capture.c.xml diff --git a/Documentation/DocBook/v4l/common.xml b/Documentation/DocBook/media/v4l/common.xml index 9028721438d..a86f7a04552 100644 --- a/Documentation/DocBook/v4l/common.xml +++ b/Documentation/DocBook/media/v4l/common.xml @@ -236,7 +236,15 @@ important parts of the API.</para> <para>The &VIDIOC-QUERYCAP; ioctl is available to check if the kernel device is compatible with this specification, and to query the <link linkend="devices">functions</link> and <link linkend="io">I/O -methods</link> supported by the device. Other features can be queried +methods</link> supported by the device.</para> + + <para>Starting with kernel version 3.1, VIDIOC-QUERYCAP will return the +V4L2 API version used by the driver, with generally matches the Kernel version. +There's no need of using &VIDIOC-QUERYCAP; to check if an specific ioctl is +supported, the V4L2 core now returns ENOIOCTLCMD if a driver doesn't provide +support for an ioctl.</para> + + <para>Other features can be queried by calling the respective ioctl, for example &VIDIOC-ENUMINPUT; to learn about the number, types and names of video connectors on the device. Although abstraction is a major objective of this API, the diff --git a/Documentation/DocBook/v4l/compat.xml b/Documentation/DocBook/media/v4l/compat.xml index 9f7cd4f2579..ce1004a7da5 100644 --- a/Documentation/DocBook/v4l/compat.xml +++ b/Documentation/DocBook/media/v4l/compat.xml @@ -10,12 +10,10 @@ driver writers to port or update their code.</para> <para>The Video For Linux API was first introduced in Linux 2.1 to unify and replace various TV and radio device related interfaces, developed independently by driver writers in prior years. Starting -with Linux 2.5 the much improved V4L2 API replaces the V4L API, -although existing drivers will continue to support V4L applications in -the future, either directly or through the V4L2 compatibility layer in -the <filename>videodev</filename> kernel module translating ioctls on -the fly. For a transition period not all drivers will support the V4L2 -API.</para> +with Linux 2.5 the much improved V4L2 API replaces the V4L API. +The support for the old V4L calls were removed from Kernel, but the +library <xref linkend="libv4l" /> supports the conversion of a V4L +API system call into a V4L2 one.</para> <section> <title>Opening and Closing Devices</title> @@ -84,12 +82,7 @@ not compatible with V4L or V4L2.</para> </footnote>, device file. V4L2 drivers <emphasis>may</emphasis> support multiple opens, see <xref linkend="open" /> for details and consequences.</para> - <para>V4L drivers respond to V4L2 ioctls with an &EINVAL;. The -compatibility layer in the V4L2 <filename>videodev</filename> module -can translate V4L ioctl requests to their V4L2 counterpart, however a -V4L2 driver usually needs more preparation to become fully V4L -compatible. This is covered in more detail in <xref - linkend="driver" />.</para> + <para>V4L drivers respond to V4L2 ioctls with an &EINVAL;.</para> </section> <section> @@ -2367,6 +2360,16 @@ that used it. It was originally scheduled for removal in 2.6.35. </listitem> </orderedlist> </section> + <section> + <title>V4L2 in Linux 3.1</title> + <orderedlist> + <listitem> + <para>VIDIOC_QUERYCAP now returns a per-subsystem version instead of a per-driver one.</para> + <para>Standardize an error code for invalid ioctl.</para> + <para>Added V4L2_CTRL_TYPE_BITMASK.</para> + </listitem> + </orderedlist> + </section> <section id="other"> <title>Relation of V4L2 to other Linux multimedia APIs</title> @@ -2472,6 +2475,9 @@ ioctls.</para> <listitem> <para>&VIDIOC-DBG-G-CHIP-IDENT; ioctl.</para> </listitem> + <listitem> + <para>Flash API. <xref linkend="flash-controls" /></para> + </listitem> </itemizedlist> </section> diff --git a/Documentation/DocBook/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml index a920ee80f64..23fdf79f8cf 100644 --- a/Documentation/DocBook/v4l/controls.xml +++ b/Documentation/DocBook/media/v4l/controls.xml @@ -51,6 +51,10 @@ readability until any ioctl (querying the properties) is called.</para> </footnote></para> + <para> + All controls use machine endianness. + </para> + <table pgwide="1" frame="none" id="control-id"> <title>Control IDs</title> <tgroup cols="3"> @@ -325,6 +329,22 @@ minimum value disables backlight compensation.</entry> <constant>V4L2_CID_ILLUMINATORS_2</constant> + 1).</entry> </row> <row> + <entry><constant>V4L2_CID_MIN_BUFFERS_FOR_CAPTURE</constant></entry> + <entry>integer</entry> + <entry>This is a read-only control that can be read by the application +and used as a hint to determine the number of CAPTURE buffers to pass to REQBUFS. +The value is the minimum number of CAPTURE buffers that is necessary for hardware +to work.</entry> + </row> + <row> + <entry><constant>V4L2_CID_MIN_BUFFERS_FOR_OUTPUT</constant></entry> + <entry>integer</entry> + <entry>This is a read-only control that can be read by the application +and used as a hint to determine the number of OUTPUT buffers to pass to REQBUFS. +The value is the minimum number of OUTPUT buffers that is necessary for hardware +to work.</entry> + </row> + <row> <entry><constant>V4L2_CID_PRIVATE_BASE</constant></entry> <entry></entry> <entry>ID of the first custom (driver specific) control. @@ -545,6 +565,10 @@ may not be supported (<constant>VIDIOC_QUERYMENU</constant> will return an error). A good example is the list of supported MPEG audio bitrates. Some drivers only support one or two bitrates, others support a wider range.</para> + + <para> + All controls use machine endianness. + </para> </section> <section> @@ -670,7 +694,8 @@ caption of a Tab page in a GUI, for example.</entry> </row><row><entry spanname="descr">The MPEG-1, -2 or -4 output stream type. One cannot assume anything here. Each hardware MPEG encoder tends to support different subsets of the available MPEG -stream types. The currently defined stream types are:</entry> +stream types. This control is specific to multiplexed MPEG streams. +The currently defined stream types are:</entry> </row> <row> <entrytbl spanname="descr" cols="2"> @@ -800,6 +825,7 @@ frequency. Possible values are:</entry> <entry spanname="id"><constant>V4L2_CID_MPEG_AUDIO_ENCODING</constant> </entry> <entry>enum v4l2_mpeg_audio_encoding</entry> </row><row><entry spanname="descr">MPEG Audio encoding. +This control is specific to multiplexed MPEG streams. Possible values are:</entry> </row> <row> @@ -1250,7 +1276,8 @@ and reproducible audio bitstream. 0 = unmuted, 1 = muted.</entry> <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_ENCODING</constant> </entry> <entry>enum v4l2_mpeg_video_encoding</entry> </row><row><entry spanname="descr">MPEG Video encoding -method. Possible values are:</entry> +method. This control is specific to multiplexed MPEG streams. +Possible values are:</entry> </row> <row> <entrytbl spanname="descr" cols="2"> @@ -1406,6 +1433,959 @@ of the video. The supplied 32-bit integer is interpreted as follows (bit </tbody> </entrytbl> </row> + + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE</constant> </entry> + <entry>boolean</entry> + </row> + <row><entry spanname="descr">If enabled the decoder expects to receive a single slice per buffer, otherwise +the decoder expects a single frame in per buffer. Applicable to the decoder, all codecs. +</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_ENABLE</constant> </entry> + <entry>boolean</entry> + </row> + <row><entry spanname="descr">Enable writing sample aspect ratio in the Video Usability Information. +Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row id="v4l2-mpeg-video-h264-vui-sar-idc"> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_VUI_SAR_IDC</constant> </entry> + <entry>enum v4l2_mpeg_video_h264_vui_sar_idc</entry> + </row> + <row><entry spanname="descr">VUI sample aspect ratio indicator for H.264 encoding. The value +is defined in the table E-1 in the standard. Applicable to the H264 encoder.</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_UNSPECIFIED</constant> </entry> + <entry>Unspecified</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_1x1</constant> </entry> + <entry>1x1</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_12x11</constant> </entry> + <entry>12x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_10x11</constant> </entry> + <entry>10x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_16x11</constant> </entry> + <entry>16x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_40x33</constant> </entry> + <entry>40x33</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_24x11</constant> </entry> + <entry>24x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_20x11</constant> </entry> + <entry>20x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_32x11</constant> </entry> + <entry>32x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_80x33</constant> </entry> + <entry>80x33</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_18x11</constant> </entry> + <entry>18x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_15x11</constant> </entry> + <entry>15x11</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_64x33</constant> </entry> + <entry>64x33</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_160x99</constant> </entry> + <entry>160x99</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_4x3</constant> </entry> + <entry>4x3</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_3x2</constant> </entry> + <entry>3x2</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_2x1</constant> </entry> + <entry>2x1</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_EXTENDED</constant> </entry> + <entry>Extended SAR</entry> + </row> + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_WIDTH</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Extended sample aspect ratio width for H.264 VUI encoding. +Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_VUI_EXT_SAR_HEIGHT</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Extended sample aspect ratio height for H.264 VUI encoding. +Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row id="v4l2-mpeg-video-h264-level"> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_LEVEL</constant> </entry> + <entry>enum v4l2_mpeg_video_h264_level</entry> + </row> + <row><entry spanname="descr">The level information for the H264 video elementary stream. +Applicable to the H264 encoder. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_1_0</constant> </entry> + <entry>Level 1.0</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_1B</constant> </entry> + <entry>Level 1B</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_1_1</constant> </entry> + <entry>Level 1.1</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_1_2</constant> </entry> + <entry>Level 1.2</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_1_3</constant> </entry> + <entry>Level 1.3</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_2_0</constant> </entry> + <entry>Level 2.0</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_2_1</constant> </entry> + <entry>Level 2.1</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_2_2</constant> </entry> + <entry>Level 2.2</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_3_0</constant> </entry> + <entry>Level 3.0</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_3_1</constant> </entry> + <entry>Level 3.1</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_3_2</constant> </entry> + <entry>Level 3.2</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_4_0</constant> </entry> + <entry>Level 4.0</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_4_1</constant> </entry> + <entry>Level 4.1</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_4_2</constant> </entry> + <entry>Level 4.2</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_5_0</constant> </entry> + <entry>Level 5.0</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LEVEL_5_1</constant> </entry> + <entry>Level 5.1</entry> + </row> + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row id="v4l2-mpeg-video-mpeg4-level"> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL</constant> </entry> + <entry>enum v4l2_mpeg_video_mpeg4_level</entry> + </row> + <row><entry spanname="descr">The level information for the MPEG4 elementary stream. +Applicable to the MPEG4 encoder. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_0</constant> </entry> + <entry>Level 0</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_0B</constant> </entry> + <entry>Level 0b</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_1</constant> </entry> + <entry>Level 1</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_2</constant> </entry> + <entry>Level 2</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_3</constant> </entry> + <entry>Level 3</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_3B</constant> </entry> + <entry>Level 3b</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_4</constant> </entry> + <entry>Level 4</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_LEVEL_5</constant> </entry> + <entry>Level 5</entry> + </row> + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row id="v4l2-mpeg-video-h264-profile"> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_PROFILE</constant> </entry> + <entry>enum v4l2_mpeg_video_h264_profile</entry> + </row> + <row><entry spanname="descr">The profile information for H264. +Applicable to the H264 encoder. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_BASELINE</constant> </entry> + <entry>Baseline profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_CONSTRAINED_BASELINE</constant> </entry> + <entry>Constrained Baseline profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_MAIN</constant> </entry> + <entry>Main profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_EXTENDED</constant> </entry> + <entry>Extended profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_HIGH</constant> </entry> + <entry>High profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_10</constant> </entry> + <entry>High 10 profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_422</constant> </entry> + <entry>High 422 profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_PREDICTIVE</constant> </entry> + <entry>High 444 Predictive profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_10_INTRA</constant> </entry> + <entry>High 10 Intra profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_422_INTRA</constant> </entry> + <entry>High 422 Intra profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_HIGH_444_INTRA</constant> </entry> + <entry>High 444 Intra profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_CAVLC_444_INTRA</constant> </entry> + <entry>CAVLC 444 Intra profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_BASELINE</constant> </entry> + <entry>Scalable Baseline profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_HIGH</constant> </entry> + <entry>Scalable High profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_SCALABLE_HIGH_INTRA</constant> </entry> + <entry>Scalable High Intra profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_STEREO_HIGH</constant> </entry> + <entry>Stereo High profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_PROFILE_MULTIVIEW_HIGH</constant> </entry> + <entry>Multiview High profile</entry> + </row> + + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row id="v4l2-mpeg-video-mpeg4-profile"> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_PROFILE</constant> </entry> + <entry>enum v4l2_mpeg_video_mpeg4_profile</entry> + </row> + <row><entry spanname="descr">The profile information for MPEG4. +Applicable to the MPEG4 encoder. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_PROFILE_SIMPLE</constant> </entry> + <entry>Simple profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_PROFILE_ADVANCED_SIMPLE</constant> </entry> + <entry>Advanced Simple profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_PROFILE_CORE</constant> </entry> + <entry>Core profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_PROFILE_SIMPLE_SCALABLE</constant> </entry> + <entry>Simple Scalable profile</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_PROFILE_ADVANCED_CODING_EFFICIENCY</constant> </entry> + <entry></entry> + </row> + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MAX_REF_PIC</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">The maximum number of reference pictures used for encoding. +Applicable to the encoder. +</entry> + </row> + + <row><entry></entry></row> + <row id="v4l2-mpeg-video-multi-slice-mode"> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE</constant> </entry> + <entry>enum v4l2_mpeg_video_multi_slice_mode</entry> + </row> + <row><entry spanname="descr">Determines how the encoder should handle division of frame into slices. +Applicable to the encoder. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_SINGLE</constant> </entry> + <entry>Single slice per frame.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_MB</constant> </entry> + <entry>Multiple slices with set maximum number of macroblocks per slice.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_BYTES</constant> </entry> + <entry>Multiple slice with set maximum size in bytes per slice.</entry> + </row> + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_MB</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">The maximum number of macroblocks in a slice. Used when +<constant>V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE</constant> is set to <constant>V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_MB</constant>. +Applicable to the encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MAX_BYTES</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">The maximum size of a slice in bytes. Used when +<constant>V4L2_CID_MPEG_VIDEO_MULTI_SLICE_MODE</constant> is set to <constant>V4L2_MPEG_VIDEO_MULTI_SLICE_MODE_MAX_BYTES</constant>. +Applicable to the encoder.</entry> + </row> + + <row><entry></entry></row> + <row id="v4l2-mpeg-video-h264-loop-filter-mode"> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_MODE</constant> </entry> + <entry>enum v4l2_mpeg_video_h264_loop_filter_mode</entry> + </row> + <row><entry spanname="descr">Loop filter mode for H264 encoder. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_ENABLED</constant> </entry> + <entry>Loop filter is enabled.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED</constant> </entry> + <entry>Loop filter is disabled.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_LOOP_FILTER_MODE_DISABLED_AT_SLICE_BOUNDARY</constant> </entry> + <entry>Loop filter is disabled at the slice boundary.</entry> + </row> + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_ALPHA</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Loop filter alpha coefficient, defined in the H264 standard. +Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_LOOP_FILTER_BETA</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Loop filter beta coefficient, defined in the H264 standard. +Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row id="v4l2-mpeg-video-h264-entropy-mode"> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_ENTROPY_MODE</constant> </entry> + <entry>enum v4l2_mpeg_video_h264_entropy_mode</entry> + </row> + <row><entry spanname="descr">Entropy coding mode for H264 - CABAC/CAVALC. +Applicable to the H264 encoder. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CAVLC</constant> </entry> + <entry>Use CAVLC entropy coding.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_H264_ENTROPY_MODE_CABAC</constant> </entry> + <entry>Use CABAC entropy coding.</entry> + </row> + </tbody> + </entrytbl> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_8X8_TRANSFORM</constant> </entry> + <entry>boolean</entry> + </row> + <row><entry spanname="descr">Enable 8X8 transform for H264. Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_CYCLIC_INTRA_REFRESH_MB</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Cyclic intra macroblock refresh. This is the number of continuous macroblocks +refreshed every frame. Each frame a succesive set of macroblocks is refreshed until the cycle completes and starts from the +top of the frame. Applicable to H264, H263 and MPEG4 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE</constant> </entry> + <entry>boolean</entry> + </row> + <row><entry spanname="descr">Frame level rate control enable. +If this control is disabled then the quantization parameter for each frame type is constant and set with appropriate controls +(e.g. <constant>V4L2_CID_MPEG_VIDEO_H263_I_FRAME_QP</constant>). +If frame rate control is enabled then quantization parameter is adjusted to meet the chosen bitrate. Minimum and maximum value +for the quantization parameter can be set with appropriate controls (e.g. <constant>V4L2_CID_MPEG_VIDEO_H263_MIN_QP</constant>). +Applicable to encoders.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE</constant> </entry> + <entry>boolean</entry> + </row> + <row><entry spanname="descr">Macroblock level rate control enable. +Applicable to the MPEG4 and H264 encoders.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_QPEL</constant> </entry> + <entry>boolean</entry> + </row> + <row><entry spanname="descr">Quarter pixel motion estimation for MPEG4. Applicable to the MPEG4 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H263_I_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an I frame for H263. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H263_MIN_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Minimum quantization parameter for H263. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H263_MAX_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Maximum quantization parameter for H263. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H263_P_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an P frame for H263. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H263_B_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an B frame for H263. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_I_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an I frame for H264. Valid range: from 0 to 51.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_MIN_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Minimum quantization parameter for H264. Valid range: from 0 to 51.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_MAX_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Maximum quantization parameter for H264. Valid range: from 0 to 51.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_P_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an P frame for H264. Valid range: from 0 to 51.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_B_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an B frame for H264. Valid range: from 0 to 51.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_I_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an I frame for MPEG4. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_MIN_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Minimum quantization parameter for MPEG4. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_MAX_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Maximum quantization parameter for MPEG4. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_P_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an P frame for MPEG4. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_B_FRAME_QP</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Quantization parameter for an B frame for MPEG4. Valid range: from 1 to 31.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_VBV_SIZE</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">The Video Buffer Verifier size in kilobytes, it is used as a limitation of frame skip. +The VBV is defined in the standard as a mean to verify that the produced stream will be succesfully decoded. +The standard describes it as "Part of a hypothetical decoder that is conceptually connected to the +output of the encoder. Its purpose is to provide a constraint on the variability of the data rate that an +encoder or editing process may produce.". +Applicable to the MPEG1, MPEG2, MPEG4 encoders.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">The Coded Picture Buffer size in kilobytes, it is used as a limitation of frame skip. +The CPB is defined in the H264 standard as a mean to verify that the produced stream will be succesfully decoded. +Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_H264_I_PERIOD</constant> </entry> + <entry>integer</entry> + </row> + <row><entry spanname="descr">Period between I-frames in the open GOP for H264. In case of an open GOP +this is the period between two I-frames. The period between IDR (Instantaneous Decoding Refresh) frames is taken from the GOP_SIZE control. +An IDR frame, which stands for Instantaneous Decoding Refresh is an I-frame after which no prior frames are +referenced. This means that a stream can be restarted from an IDR frame without the need to store or decode any +previous frames. Applicable to the H264 encoder.</entry> + </row> + + <row><entry></entry></row> + <row id="v4l2-mpeg-video-header-mode"> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_HEADER_MODE</constant> </entry> + <entry>enum v4l2_mpeg_video_header_mode</entry> + </row> + <row><entry spanname="descr">Determines whether the header is returned as the first buffer or is +it returned together with the first frame. Applicable to encoders. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_VIDEO_HEADER_MODE_SEPARATE</constant> </entry> + <entry>The stream header is returned separately in the first buffer.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_VIDEO_HEADER_MODE_JOINED_WITH_1ST_FRAME</constant> </entry> + <entry>The stream header is returned together with the first encoded frame.</entry> + </row> + </tbody> + </entrytbl> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER</constant> </entry> + <entry>boolean</entry> + </row><row><entry spanname="descr">Enabled the deblocking post processing filter for MPEG4 decoder. +Applicable to the MPEG4 decoder.</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_VOP_TIME_RES</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">vop_time_increment_resolution value for MPEG4. Applicable to the MPEG4 encoder.</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_VIDEO_MPEG4_VOP_TIME_INC</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">vop_time_increment value for MPEG4. Applicable to the MPEG4 encoder.</entry> + </row> + + </tbody> + </tgroup> + </table> + </section> + + <section> + <title>MFC 5.1 MPEG Controls</title> + + <para>The following MPEG class controls deal with MPEG +decoding and encoding settings that are specific to the Multi Format Codec 5.1 device present +in the S5P family of SoCs by Samsung. +</para> + + <table pgwide="1" frame="none" id="mfc51-control-id"> + <title>MFC 5.1 Control IDs</title> + <tgroup cols="4"> + <colspec colname="c1" colwidth="1*" /> + <colspec colname="c2" colwidth="6*" /> + <colspec colname="c3" colwidth="2*" /> + <colspec colname="c4" colwidth="6*" /> + <spanspec namest="c1" nameend="c2" spanname="id" /> + <spanspec namest="c2" nameend="c4" spanname="descr" /> + <thead> + <row> + <entry spanname="id" align="left">ID</entry> + <entry align="left">Type</entry> + </row><row><entry spanname="descr" align="left">Description</entry> + </row> + </thead> + <tbody valign="top"> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">If the display delay is enabled then the decoder has to return a +CAPTURE buffer after processing a certain number of OUTPUT buffers. If this number is low, then it may result in +buffers not being dequeued in display order. In addition hardware may still use those buffers as reference, thus +application should not write to those buffers. This feature can be used for example for generating thumbnails of videos. +Applicable to the H264 decoder. + </entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">Display delay value for H264 decoder. +The decoder is forced to return a decoded frame after the set 'display delay' number of frames. If this number is +low it may result in frames returned out of dispaly order, in addition the hardware may still be using the returned buffer +as a reference picture for subsequent frames. +</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_H264_NUM_REF_PIC_FOR_P</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">The number of reference pictures used for encoding a P picture. +Applicable to the H264 encoder.</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_PADDING</constant> </entry> + <entry>boolean</entry> + </row><row><entry spanname="descr">Padding enable in the encoder - use a color instead of repeating border pixels. +Applicable to encoders.</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_PADDING_YUV</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">Padding color in the encoder. Applicable to encoders. The supplied 32-bit integer is interpreted as follows (bit +0 = least significant bit):</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry>Bit 0:7</entry> + <entry>V chrominance information</entry> + </row> + <row> + <entry>Bit 8:15</entry> + <entry>U chrominance information</entry> + </row> + <row> + <entry>Bit 16:23</entry> + <entry>Y luminance information</entry> + </row> + <row> + <entry>Bit 24:31</entry> + <entry>Must be zero.</entry> + </row> + </tbody> + </entrytbl> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_RC_REACTION_COEFF</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">Reaction coefficient for MFC rate control. Applicable to encoders. +<para>Note 1: Valid only when the frame level RC is enabled.</para> +<para>Note 2: For tight CBR, this field must be small (ex. 2 ~ 10). +For VBR, this field must be large (ex. 100 ~ 1000).</para> +<para>Note 3: It is not recommended to use the greater number than FRAME_RATE * (10^9 / BIT_RATE).</para> +</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_DARK</constant> </entry> + <entry>boolean</entry> + </row><row><entry spanname="descr">Adaptive rate control for dark region. +Valid only when H.264 and macroblock level RC is enabled (<constant>V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE</constant>). +Applicable to the H264 encoder.</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_SMOOTH</constant> </entry> + <entry>boolean</entry> + </row><row><entry spanname="descr">Adaptive rate control for smooth region. +Valid only when H.264 and macroblock level RC is enabled (<constant>V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE</constant>). +Applicable to the H264 encoder.</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_STATIC</constant> </entry> + <entry>boolean</entry> + </row><row><entry spanname="descr">Adaptive rate control for static region. +Valid only when H.264 and macroblock level RC is enabled (<constant>V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE</constant>). +Applicable to the H264 encoder.</entry> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_H264_ADAPTIVE_RC_ACTIVITY</constant> </entry> + <entry>boolean</entry> + </row><row><entry spanname="descr">Adaptive rate control for activity region. +Valid only when H.264 and macroblock level RC is enabled (<constant>V4L2_CID_MPEG_VIDEO_MB_RC_ENABLE</constant>). +Applicable to the H264 encoder.</entry> + </row> + <row><entry></entry></row> + <row id="v4l2-mpeg-mfc51-video-frame-skip-mode"> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_FRAME_SKIP_MODE</constant> </entry> + <entry>enum v4l2_mpeg_mfc51_video_frame_skip_mode</entry> + </row> + <row><entry spanname="descr"> +Indicates in what conditions the encoder should skip frames. If encoding a frame would cause the encoded stream to be larger then +a chosen data limit then the frame will be skipped. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_MFC51_FRAME_SKIP_MODE_DISABLED</constant> </entry> + <entry>Frame skip mode is disabled.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_MFC51_FRAME_SKIP_MODE_LEVEL_LIMIT</constant> </entry> + <entry>Frame skip mode enabled and buffer limit is set by the chosen level and is defined by the standard.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_MFC51_FRAME_SKIP_MODE_BUF_LIMIT</constant> </entry> + <entry>Frame skip mode enabled and buffer limit is set by the VBV (MPEG1/2/4) or CPB (H264) buffer size control.</entry> + </row> + </tbody> + </entrytbl> + </row> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_RC_FIXED_TARGET_BIT</constant> </entry> + <entry>integer</entry> + </row><row><entry spanname="descr">Enable rate-control with fixed target bit. +If this setting is enabled, then the rate control logic of the encoder will calculate the average bitrate +for a GOP and keep it below or equal the set bitrate target. Otherwise the rate control logic calculates the +overall average bitrate for the stream and keeps it below or equal to the set bitrate. In the first case +the average bitrate for the whole stream will be smaller then the set bitrate. This is caused because the +average is calculated for smaller number of frames, on the other hand enabling this setting will ensure that +the stream will meet tight bandwidth contraints. Applicable to encoders. +</entry> + </row> + <row><entry></entry></row> + <row id="v4l2-mpeg-mfc51-video-force-frame-type"> + <entry spanname="id"><constant>V4L2_CID_MPEG_MFC51_VIDEO_FORCE_FRAME_TYPE</constant> </entry> + <entry>enum v4l2_mpeg_mfc51_video_force_frame_type</entry> + </row> + <row><entry spanname="descr">Force a frame type for the next queued buffer. Applicable to encoders. +Possible values are:</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_MPEG_MFC51_FORCE_FRAME_TYPE_DISABLED</constant> </entry> + <entry>Forcing a specific frame type disabled.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_MFC51_FORCE_FRAME_TYPE_I_FRAME</constant> </entry> + <entry>Force an I-frame.</entry> + </row> + <row> + <entry><constant>V4L2_MPEG_MFC51_FORCE_FRAME_TYPE_NOT_CODED</constant> </entry> + <entry>Force a non-coded frame.</entry> + </row> + </tbody> + </entrytbl> + </row> </tbody> </tgroup> </table> @@ -2092,6 +3072,289 @@ manually or automatically if set to zero. Unit, range and step are driver-specif <para>For more details about RDS specification, refer to <xref linkend="en50067" /> document, from CENELEC.</para> </section> + + <section id="flash-controls"> + <title>Flash Control Reference</title> + + <note> + <title>Experimental</title> + + <para>This is an <link linkend="experimental">experimental</link> +interface and may change in the future.</para> + </note> + + <para> + The V4L2 flash controls are intended to provide generic access + to flash controller devices. Flash controller devices are + typically used in digital cameras. + </para> + + <para> + The interface can support both LED and xenon flash devices. As + of writing this, there is no xenon flash driver using this + interface. + </para> + + <section id="flash-controls-use-cases"> + <title>Supported use cases</title> + + <section> + <title>Unsynchronised LED flash (software strobe)</title> + + <para> + Unsynchronised LED flash is controlled directly by the + host as the sensor. The flash must be enabled by the host + before the exposure of the image starts and disabled once + it ends. The host is fully responsible for the timing of + the flash. + </para> + + <para>Example of such device: Nokia N900.</para> + </section> + + <section> + <title>Synchronised LED flash (hardware strobe)</title> + + <para> + The synchronised LED flash is pre-programmed by the host + (power and timeout) but controlled by the sensor through a + strobe signal from the sensor to the flash. + </para> + + <para> + The sensor controls the flash duration and timing. This + information typically must be made available to the + sensor. + </para> + + </section> + + <section> + <title>LED flash as torch</title> + + <para> + LED flash may be used as torch in conjunction with another + use case involving camera or individually. + </para> + + </section> + + </section> + + <table pgwide="1" frame="none" id="flash-control-id"> + <title>Flash Control IDs</title> + + <tgroup cols="4"> + <colspec colname="c1" colwidth="1*" /> + <colspec colname="c2" colwidth="6*" /> + <colspec colname="c3" colwidth="2*" /> + <colspec colname="c4" colwidth="6*" /> + <spanspec namest="c1" nameend="c2" spanname="id" /> + <spanspec namest="c2" nameend="c4" spanname="descr" /> + <thead> + <row> + <entry spanname="id" align="left">ID</entry> + <entry align="left">Type</entry> + </row><row rowsep="1"><entry spanname="descr" align="left">Description</entry> + </row> + </thead> + <tbody valign="top"> + <row><entry></entry></row> + <row> + <entry spanname="id"><constant>V4L2_CID_FLASH_CLASS</constant></entry> + <entry>class</entry> + </row> + <row> + <entry spanname="descr">The FLASH class descriptor.</entry> + </row> + <row> + <entry spanname="id"><constant>V4L2_CID_FLASH_LED_MODE</constant></entry> + <entry>menu</entry> + </row> + <row id="v4l2-flash-led-mode"> + <entry spanname="descr">Defines the mode of the flash LED, + the high-power white LED attached to the flash controller. + Setting this control may not be possible in presence of + some faults. See V4L2_CID_FLASH_FAULT.</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_FLASH_LED_MODE_NONE</constant></entry> + <entry>Off.</entry> + </row> + <row> + <entry><constant>V4L2_FLASH_LED_MODE_FLASH</constant></entry> + <entry>Flash mode.</entry> + </row> + <row> + <entry><constant>V4L2_FLASH_LED_MODE_TORCH</constant></entry> + <entry>Torch mode. See V4L2_CID_FLASH_TORCH_INTENSITY.</entry> + </row> + </tbody> + </entrytbl> + </row> + <row> + <entry spanname="id"><constant>V4L2_CID_FLASH_STROBE_SOURCE</constant></entry> + <entry>menu</entry> + </row> + <row id="v4l2-flash-strobe-source"><entry + spanname="descr">Defines the source of the flash LED + strobe.</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_FLASH_STROBE_SOURCE_SOFTWARE</constant></entry> + <entry>The flash strobe is triggered by using + the V4L2_CID_FLASH_STROBE control.</entry> + </row> + <row> + <entry><constant>V4L2_FLASH_STROBE_SOURCE_EXTERNAL</constant></entry> + <entry>The flash strobe is triggered by an + external source. Typically this is a sensor, + which makes it possible to synchronises the + flash strobe start to exposure start.</entry> + </row> + </tbody> + </entrytbl> + </row> + <row> + <entry spanname="id"><constant>V4L2_CID_FLASH_STROBE</constant></entry> + <entry>button</entry> + </row> + <row> + <entry spanname="descr">Strobe flash. Valid when + V4L2_CID_FLASH_LED_MODE is set to + V4L2_FLASH_LED_MODE_FLASH and V4L2_CID_FLASH_STROBE_SOURCE + is set to V4L2_FLASH_STROBE_SOURCE_SOFTWARE. Setting this + control may not be possible in presence of some faults. + See V4L2_CID_FLASH_FAULT.</entry> + </row> + <row> + <entry spanname="id"><constant>V4L2_CID_FLASH_STROBE_STOP</constant></entry> + <entry>button</entry> + </row> + <row><entry spanname="descr">Stop flash strobe immediately.</entry> + </row> + <row> + <entry spanname="id"><constant>V4L2_CID_FLASH_STROBE_STATUS</constant></entry> + <entry>boolean</entry> + </row> + <row> + <entry spanname="descr">Strobe status: whether the flash + is strobing at the moment or not. This is a read-only + control.</entry> + </row> + <row> + <entry spanname="id"><constant>V4L2_CID_FLASH_TIMEOUT</constant></entry> + <entry>integer</entry> + </row> + <row> + <entry spanname="descr">Hardware timeout for flash. The + flash strobe is stopped after this period of time has + passed from the start of the strobe.</entry> + </row> + <row> + <entry spanname="id"><constant>V4L2_CID_FLASH_INTENSITY</constant></entry> + <entry>integer</entry> + </row> + <row> + <entry spanname="descr">Intensity of the flash strobe when + the flash LED is in flash mode + (V4L2_FLASH_LED_MODE_FLASH). The unit should be milliamps + (mA) if possible.</entry> + </row> + <row> + <entry spanname="id"><constant>V4L2_CID_FLASH_TORCH_INTENSITY</constant></entry> + <entry>integer</entry> + </row> + <row> + <entry spanname="descr">Intensity of the flash LED in + torch mode (V4L2_FLASH_LED_MODE_TORCH). The unit should be + milliamps (mA) if possible. Setting this control may not + be possible in presence of some faults. See + V4L2_CID_FLASH_FAULT.</entry> + </row> + <row> + <entry spanname="id"><constant>V4L2_CID_FLASH_INDICATOR_INTENSITY</constant></entry> + <entry>integer</entry> + </row> + <row> + <entry spanname="descr">Intensity of the indicator LED. + The indicator LED may be fully independent of the flash + LED. The unit should be microamps (uA) if possible.</entry> + </row> + <row> + <entry spanname="id"><constant>V4L2_CID_FLASH_FAULT</constant></entry> + <entry>bitmask</entry> + </row> + <row> + <entry spanname="descr">Faults related to the flash. The + faults tell about specific problems in the flash chip + itself or the LEDs attached to it. Faults may prevent + further use of some of the flash controls. In particular, + V4L2_CID_FLASH_LED_MODE is set to V4L2_FLASH_LED_MODE_NONE + if the fault affects the flash LED. Exactly which faults + have such an effect is chip dependent. Reading the faults + resets the control and returns the chip to a usable state + if possible.</entry> + </row> + <row> + <entrytbl spanname="descr" cols="2"> + <tbody valign="top"> + <row> + <entry><constant>V4L2_FLASH_FAULT_OVER_VOLTAGE</constant></entry> + <entry>Flash controller voltage to the flash LED + has exceeded the limit specific to the flash + controller.</entry> + </row> + <row> + <entry><constant>V4L2_FLASH_FAULT_TIMEOUT</constant></entry> + <entry>The flash strobe was still on when + the timeout set by the user --- + V4L2_CID_FLASH_TIMEOUT control --- has expired. + Not all flash controllers may set this in all + such conditions.</entry> + </row> + <row> + <entry><constant>V4L2_FLASH_FAULT_OVER_TEMPERATURE</constant></entry> + <entry>The flash controller has overheated.</entry> + </row> + <row> + <entry><constant>V4L2_FLASH_FAULT_SHORT_CIRCUIT</constant></entry> + <entry>The short circuit protection of the flash + controller has been triggered.</entry> + </row> + </tbody> + </entrytbl> + </row> + <row> + <entry spanname="id"><constant>V4L2_CID_FLASH_CHARGE</constant></entry> + <entry>boolean</entry> + </row> + <row><entry spanname="descr">Enable or disable charging of the xenon + flash capacitor.</entry> + </row> + <row> + <entry spanname="id"><constant>V4L2_CID_FLASH_READY</constant></entry> + <entry>boolean</entry> + </row> + <row> + <entry spanname="descr">Is the flash ready to strobe? + Xenon flashes require their capacitors charged before + strobing. LED flashes often require a cooldown period + after strobe during which another strobe will not be + possible. This is a read-only control.</entry> + </row> + <row><entry></entry></row> + </tbody> + </tgroup> + </table> + + </section> </section> <!-- diff --git a/Documentation/DocBook/v4l/crop.pdf b/Documentation/DocBook/media/v4l/crop.pdf Binary files differindex c9fb81cd32f..c9fb81cd32f 100644 --- a/Documentation/DocBook/v4l/crop.pdf +++ b/Documentation/DocBook/media/v4l/crop.pdf diff --git a/Documentation/DocBook/v4l/dev-capture.xml b/Documentation/DocBook/media/v4l/dev-capture.xml index 2237c661f26..2237c661f26 100644 --- a/Documentation/DocBook/v4l/dev-capture.xml +++ b/Documentation/DocBook/media/v4l/dev-capture.xml diff --git a/Documentation/DocBook/v4l/dev-codec.xml b/Documentation/DocBook/media/v4l/dev-codec.xml index 6e156dc45b9..6e156dc45b9 100644 --- a/Documentation/DocBook/v4l/dev-codec.xml +++ b/Documentation/DocBook/media/v4l/dev-codec.xml diff --git a/Documentation/DocBook/v4l/dev-effect.xml b/Documentation/DocBook/media/v4l/dev-effect.xml index 9c243beba0e..9c243beba0e 100644 --- a/Documentation/DocBook/v4l/dev-effect.xml +++ b/Documentation/DocBook/media/v4l/dev-effect.xml diff --git a/Documentation/DocBook/media/v4l/dev-event.xml b/Documentation/DocBook/media/v4l/dev-event.xml new file mode 100644 index 00000000000..f14ae3fe107 --- /dev/null +++ b/Documentation/DocBook/media/v4l/dev-event.xml @@ -0,0 +1,51 @@ + <title>Event Interface</title> + + <para>The V4L2 event interface provides a means for a user to get + immediately notified on certain conditions taking place on a device. + This might include start of frame or loss of signal events, for + example. Changes in the value or state of a V4L2 control can also be + reported through events. + </para> + + <para>To receive events, the events the user is interested in first must + be subscribed using the &VIDIOC-SUBSCRIBE-EVENT; ioctl. Once an event is + subscribed, the events of subscribed types are dequeueable using the + &VIDIOC-DQEVENT; ioctl. Events may be unsubscribed using + VIDIOC_UNSUBSCRIBE_EVENT ioctl. The special event type V4L2_EVENT_ALL may + be used to unsubscribe all the events the driver supports.</para> + + <para>The event subscriptions and event queues are specific to file + handles. Subscribing an event on one file handle does not affect + other file handles.</para> + + <para>The information on dequeueable events is obtained by using select or + poll system calls on video devices. The V4L2 events use POLLPRI events on + poll system call and exceptions on select system call.</para> + + <para>Starting with kernel 3.1 certain guarantees can be given with + regards to events:<orderedlist> + <listitem> + <para>Each subscribed event has its own internal dedicated event queue. +This means that flooding of one event type will not interfere with other +event types.</para> + </listitem> + <listitem> + <para>If the internal event queue for a particular subscribed event +becomes full, then the oldest event in that queue will be dropped.</para> + </listitem> + <listitem> + <para>Where applicable, certain event types can ensure that the payload +of the oldest event that is about to be dropped will be merged with the payload +of the next oldest event. Thus ensuring that no information is lost, but only an +intermediate step leading up to that information. See the documentation for the +event you want to subscribe to whether this is applicable for that event or not.</para> + </listitem> + </orderedlist></para> + + <!-- +Local Variables: +mode: sgml +sgml-parent-document: "v4l2.sgml" +indent-tabs-mode: nil +End: + --> diff --git a/Documentation/DocBook/v4l/dev-osd.xml b/Documentation/DocBook/media/v4l/dev-osd.xml index c9a68a2ccd3..c9a68a2ccd3 100644 --- a/Documentation/DocBook/v4l/dev-osd.xml +++ b/Documentation/DocBook/media/v4l/dev-osd.xml diff --git a/Documentation/DocBook/v4l/dev-output.xml b/Documentation/DocBook/media/v4l/dev-output.xml index 919e22c5385..919e22c5385 100644 --- a/Documentation/DocBook/v4l/dev-output.xml +++ b/Documentation/DocBook/media/v4l/dev-output.xml diff --git a/Documentation/DocBook/v4l/dev-overlay.xml b/Documentation/DocBook/media/v4l/dev-overlay.xml index 92513cf7915..92513cf7915 100644 --- a/Documentation/DocBook/v4l/dev-overlay.xml +++ b/Documentation/DocBook/media/v4l/dev-overlay.xml diff --git a/Documentation/DocBook/v4l/dev-radio.xml b/Documentation/DocBook/media/v4l/dev-radio.xml index 73aa90b45b3..73aa90b45b3 100644 --- a/Documentation/DocBook/v4l/dev-radio.xml +++ b/Documentation/DocBook/media/v4l/dev-radio.xml diff --git a/Documentation/DocBook/v4l/dev-raw-vbi.xml b/Documentation/DocBook/media/v4l/dev-raw-vbi.xml index c5a70bdfaf2..c5a70bdfaf2 100644 --- a/Documentation/DocBook/v4l/dev-raw-vbi.xml +++ b/Documentation/DocBook/media/v4l/dev-raw-vbi.xml diff --git a/Documentation/DocBook/v4l/dev-rds.xml b/Documentation/DocBook/media/v4l/dev-rds.xml index 2427f54397e..2427f54397e 100644 --- a/Documentation/DocBook/v4l/dev-rds.xml +++ b/Documentation/DocBook/media/v4l/dev-rds.xml diff --git a/Documentation/DocBook/v4l/dev-sliced-vbi.xml b/Documentation/DocBook/media/v4l/dev-sliced-vbi.xml index 69e789fa7f7..69e789fa7f7 100644 --- a/Documentation/DocBook/v4l/dev-sliced-vbi.xml +++ b/Documentation/DocBook/media/v4l/dev-sliced-vbi.xml diff --git a/Documentation/DocBook/v4l/dev-subdev.xml b/Documentation/DocBook/media/v4l/dev-subdev.xml index 05c8fefcbcb..05c8fefcbcb 100644 --- a/Documentation/DocBook/v4l/dev-subdev.xml +++ b/Documentation/DocBook/media/v4l/dev-subdev.xml diff --git a/Documentation/DocBook/v4l/dev-teletext.xml b/Documentation/DocBook/media/v4l/dev-teletext.xml index 414b1cfff9f..414b1cfff9f 100644 --- a/Documentation/DocBook/v4l/dev-teletext.xml +++ b/Documentation/DocBook/media/v4l/dev-teletext.xml diff --git a/Documentation/DocBook/v4l/driver.xml b/Documentation/DocBook/media/v4l/driver.xml index 1f7eea5c4ec..1f7eea5c4ec 100644 --- a/Documentation/DocBook/v4l/driver.xml +++ b/Documentation/DocBook/media/v4l/driver.xml diff --git a/Documentation/DocBook/v4l/fdl-appendix.xml b/Documentation/DocBook/media/v4l/fdl-appendix.xml index ae22394ba99..ae22394ba99 100644 --- a/Documentation/DocBook/v4l/fdl-appendix.xml +++ b/Documentation/DocBook/media/v4l/fdl-appendix.xml diff --git a/Documentation/DocBook/v4l/fieldseq_bt.pdf b/Documentation/DocBook/media/v4l/fieldseq_bt.pdf Binary files differindex 26598b23f80..26598b23f80 100644 --- a/Documentation/DocBook/v4l/fieldseq_bt.pdf +++ b/Documentation/DocBook/media/v4l/fieldseq_bt.pdf diff --git a/Documentation/DocBook/v4l/fieldseq_tb.pdf b/Documentation/DocBook/media/v4l/fieldseq_tb.pdf Binary files differindex 4965b22ddb3..4965b22ddb3 100644 --- a/Documentation/DocBook/v4l/fieldseq_tb.pdf +++ b/Documentation/DocBook/media/v4l/fieldseq_tb.pdf diff --git a/Documentation/DocBook/v4l/func-close.xml b/Documentation/DocBook/media/v4l/func-close.xml index dfb41cbbbec..dfb41cbbbec 100644 --- a/Documentation/DocBook/v4l/func-close.xml +++ b/Documentation/DocBook/media/v4l/func-close.xml diff --git a/Documentation/DocBook/media/v4l/func-ioctl.xml b/Documentation/DocBook/media/v4l/func-ioctl.xml new file mode 100644 index 00000000000..2de64be706f --- /dev/null +++ b/Documentation/DocBook/media/v4l/func-ioctl.xml @@ -0,0 +1,79 @@ +<refentry id="func-ioctl"> + <refmeta> + <refentrytitle>V4L2 ioctl()</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>v4l2-ioctl</refname> + <refpurpose>Program a V4L2 device</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcsynopsisinfo>#include <sys/ioctl.h></funcsynopsisinfo> + <funcprototype> + <funcdef>int <function>ioctl</function></funcdef> + <paramdef>int <parameter>fd</parameter></paramdef> + <paramdef>int <parameter>request</parameter></paramdef> + <paramdef>void *<parameter>argp</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>V4L2 ioctl request code as defined in the <filename>videodev2.h</filename> header file, for example +VIDIOC_QUERYCAP.</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>argp</parameter></term> + <listitem> + <para>Pointer to a function parameter, usually a structure.</para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + + <para>The <function>ioctl()</function> function is used to program +V4L2 devices. The argument <parameter>fd</parameter> must be an open +file descriptor. An ioctl <parameter>request</parameter> has encoded +in it whether the argument is an input, output or read/write +parameter, and the size of the argument <parameter>argp</parameter> in +bytes. Macros and defines specifying V4L2 ioctl requests are located +in the <filename>videodev2.h</filename> header file. +Applications should use their own copy, not include the version in the +kernel sources on the system they compile on. All V4L2 ioctl requests, +their respective function and parameters are specified in <xref + linkend="user-func" />.</para> + </refsect1> + + <refsect1> + &return-value; + <para>When an ioctl that takes an output or read/write parameter fails, + the parameter remains unmodified.</para> + </refsect1> +</refentry> + +<!-- +Local Variables: +mode: sgml +sgml-parent-document: "v4l2.sgml" +indent-tabs-mode: nil +End: +--> diff --git a/Documentation/DocBook/v4l/func-mmap.xml b/Documentation/DocBook/media/v4l/func-mmap.xml index 786732b64bb..786732b64bb 100644 --- a/Documentation/DocBook/v4l/func-mmap.xml +++ b/Documentation/DocBook/media/v4l/func-mmap.xml diff --git a/Documentation/DocBook/v4l/func-munmap.xml b/Documentation/DocBook/media/v4l/func-munmap.xml index e2c4190f9bb..e2c4190f9bb 100644 --- a/Documentation/DocBook/v4l/func-munmap.xml +++ b/Documentation/DocBook/media/v4l/func-munmap.xml diff --git a/Documentation/DocBook/v4l/func-open.xml b/Documentation/DocBook/media/v4l/func-open.xml index 7595d07a8c7..7595d07a8c7 100644 --- a/Documentation/DocBook/v4l/func-open.xml +++ b/Documentation/DocBook/media/v4l/func-open.xml diff --git a/Documentation/DocBook/v4l/func-poll.xml b/Documentation/DocBook/media/v4l/func-poll.xml index ec3c718f596..ec3c718f596 100644 --- a/Documentation/DocBook/v4l/func-poll.xml +++ b/Documentation/DocBook/media/v4l/func-poll.xml diff --git a/Documentation/DocBook/v4l/func-read.xml b/Documentation/DocBook/media/v4l/func-read.xml index a5089bf8873..a5089bf8873 100644 --- a/Documentation/DocBook/v4l/func-read.xml +++ b/Documentation/DocBook/media/v4l/func-read.xml diff --git a/Documentation/DocBook/v4l/func-select.xml b/Documentation/DocBook/media/v4l/func-select.xml index b6713623181..b6713623181 100644 --- a/Documentation/DocBook/v4l/func-select.xml +++ b/Documentation/DocBook/media/v4l/func-select.xml diff --git a/Documentation/DocBook/v4l/func-write.xml b/Documentation/DocBook/media/v4l/func-write.xml index 2c09c09371c..2c09c09371c 100644 --- a/Documentation/DocBook/v4l/func-write.xml +++ b/Documentation/DocBook/media/v4l/func-write.xml diff --git a/Documentation/DocBook/media/v4l/gen-errors.xml b/Documentation/DocBook/media/v4l/gen-errors.xml new file mode 100644 index 00000000000..5bbf3ce1973 --- /dev/null +++ b/Documentation/DocBook/media/v4l/gen-errors.xml @@ -0,0 +1,78 @@ +<title>Generic Error Codes</title> + +<table frame="none" pgwide="1" id="gen-errors"> + <title>Generic error codes</title> + <tgroup cols="2"> + &cs-str; + <tbody valign="top"> + <!-- Keep it ordered alphabetically --> + <row> + <entry>EBADF</entry> + <entry>The file descriptor is not a valid.</entry> + </row> + <row> + <entry>EBUSY</entry> + <entry>The ioctl can't be handled because the device is busy. This is + typically return while device is streaming, and an ioctl tried to + change something that would affect the stream, or would require the + usage of a hardware resource that was already allocated. The ioctl + must not be retried without performing another action to fix the + problem first (typically: stop the stream before retrying).</entry> + </row> + <row> + <entry>EFAULT</entry> + <entry>There was a failure while copying data from/to userspace, + probably caused by an invalid pointer reference.</entry> + </row> + <row> + <entry>EINVAL</entry> + <entry>One or more of the ioctl parameters are invalid or out of the + allowed range. This is a widely used error code. See the individual + ioctl requests for specific causes.</entry> + </row> + <row> + <entry>ENODEV</entry> + <entry>Device not found or was removed.</entry> + </row> + <row> + <entry>ENOMEM</entry> + <entry>There's not enough memory to handle the desired operation.</entry> + </row> + <row> + <entry>ENOTTY</entry> + <entry>The ioctl is not supported by the driver, actually meaning that + the required functionality is not available, or the file + descriptor is not for a media device.</entry> + </row> + <row> + <entry>ENOSPC</entry> + <entry>On USB devices, the stream ioctl's can return this error, meaning + that this request would overcommit the usb bandwidth reserved + for periodic transfers (up to 80% of the USB bandwidth).</entry> + </row> + <row> + <entry>ENOSYS or EOPNOTSUPP</entry> + <entry>Function not available for this device (dvb API only. Will likely + be replaced anytime soon by ENOTTY).</entry> + </row> + <row> + <entry>EPERM</entry> + <entry>Permission denied. Can be returned if the device needs write + permission, or some special capabilities is needed + (e. g. root)</entry> + </row> + <row> + <entry>EWOULDBLOCK</entry> + <entry>Operation would block. Used when the ioctl would need to wait + for an event, but the device was opened in non-blocking mode.</entry> + </row> + </tbody> + </tgroup> +</table> + +<para>Note 1: ioctls may return other error codes. Since errors may have side +effects such as a driver reset, applications should abort on unexpected errors. +</para> + +<para>Note 2: Request-specific error codes are listed in the individual +requests descriptions.</para> diff --git a/Documentation/DocBook/v4l/io.xml b/Documentation/DocBook/media/v4l/io.xml index 227e7ac45a0..c57d1ec6291 100644 --- a/Documentation/DocBook/v4l/io.xml +++ b/Documentation/DocBook/media/v4l/io.xml @@ -210,7 +210,7 @@ for (i = 0; i < reqbuf.count; i++) <programlisting> &v4l2-requestbuffers; reqbuf; /* Our current format uses 3 planes per buffer */ -#define FMT_NUM_PLANES = 3; +#define FMT_NUM_PLANES = 3 struct { void *start[FMT_NUM_PLANES]; diff --git a/Documentation/DocBook/v4l/keytable.c.xml b/Documentation/DocBook/media/v4l/keytable.c.xml index d53254a3be1..d53254a3be1 100644 --- a/Documentation/DocBook/v4l/keytable.c.xml +++ b/Documentation/DocBook/media/v4l/keytable.c.xml diff --git a/Documentation/DocBook/v4l/libv4l.xml b/Documentation/DocBook/media/v4l/libv4l.xml index 3cb10ec5192..3cb10ec5192 100644 --- a/Documentation/DocBook/v4l/libv4l.xml +++ b/Documentation/DocBook/media/v4l/libv4l.xml diff --git a/Documentation/DocBook/v4l/lirc_device_interface.xml b/Documentation/DocBook/media/v4l/lirc_device_interface.xml index 0e0453f39e7..8d7eb6bf631 100644 --- a/Documentation/DocBook/v4l/lirc_device_interface.xml +++ b/Documentation/DocBook/media/v4l/lirc_device_interface.xml @@ -246,6 +246,8 @@ on working with the default settings initially.</para> </listitem> </varlistentry> </variablelist> - +<section id="lirc_dev_errors"> + &return-value; +</section> </section> </section> diff --git a/Documentation/DocBook/v4l/media-controller.xml b/Documentation/DocBook/media/v4l/media-controller.xml index 873ac3a621f..873ac3a621f 100644 --- a/Documentation/DocBook/v4l/media-controller.xml +++ b/Documentation/DocBook/media/v4l/media-controller.xml diff --git a/Documentation/DocBook/v4l/media-func-close.xml b/Documentation/DocBook/media/v4l/media-func-close.xml index be149c802ae..be149c802ae 100644 --- a/Documentation/DocBook/v4l/media-func-close.xml +++ b/Documentation/DocBook/media/v4l/media-func-close.xml diff --git a/Documentation/DocBook/v4l/media-func-ioctl.xml b/Documentation/DocBook/media/v4l/media-func-ioctl.xml index bda8604de15..39478d0fbca 100644 --- a/Documentation/DocBook/v4l/media-func-ioctl.xml +++ b/Documentation/DocBook/media/v4l/media-func-ioctl.xml @@ -63,54 +63,11 @@ </refsect1> <refsect1> - <title>Return Value</title> + &return-value; - <para><function>ioctl()</function> returns <returnvalue>0</returnvalue> on - success. On failure, <returnvalue>-1</returnvalue> is returned, and the - <varname>errno</varname> variable is set appropriately. Generic error codes - are listed below, and request-specific error codes are listed in the + <para>Request-specific error codes are listed in the individual requests descriptions.</para> <para>When an ioctl that takes an output or read/write parameter fails, the parameter remains unmodified.</para> - - <variablelist> - <varlistentry> - <term><errorcode>EBADF</errorcode></term> - <listitem> - <para><parameter>fd</parameter> is not a valid open file descriptor. - </para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>EFAULT</errorcode></term> - <listitem> - <para><parameter>argp</parameter> references an inaccessible memory - area.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>EINVAL</errorcode></term> - <listitem> - <para>The <parameter>request</parameter> or the data pointed to by - <parameter>argp</parameter> is not valid. This is a very common error - code, see the individual ioctl requests listed in - <xref linkend="media-user-func" /> for actual causes.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>ENOMEM</errorcode></term> - <listitem> - <para>Insufficient kernel memory was available to complete the - request.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>ENOTTY</errorcode></term> - <listitem> - <para><parameter>fd</parameter> is not associated with a character - special device.</para> - </listitem> - </varlistentry> - </variablelist> </refsect1> </refentry> diff --git a/Documentation/DocBook/v4l/media-func-open.xml b/Documentation/DocBook/media/v4l/media-func-open.xml index f7df034dc9e..f7df034dc9e 100644 --- a/Documentation/DocBook/v4l/media-func-open.xml +++ b/Documentation/DocBook/media/v4l/media-func-open.xml diff --git a/Documentation/DocBook/v4l/media-ioc-device-info.xml b/Documentation/DocBook/media/v4l/media-ioc-device-info.xml index 1f3237351bb..2ce521419e6 100644 --- a/Documentation/DocBook/v4l/media-ioc-device-info.xml +++ b/Documentation/DocBook/media/v4l/media-ioc-device-info.xml @@ -127,7 +127,6 @@ </refsect1> <refsect1> - <title>Return value</title> - <para>This function doesn't return specific error codes.</para> + &return-value; </refsect1> </refentry> diff --git a/Documentation/DocBook/v4l/media-ioc-enum-entities.xml b/Documentation/DocBook/media/v4l/media-ioc-enum-entities.xml index 576b68b33f2..576b68b33f2 100644 --- a/Documentation/DocBook/v4l/media-ioc-enum-entities.xml +++ b/Documentation/DocBook/media/v4l/media-ioc-enum-entities.xml diff --git a/Documentation/DocBook/v4l/media-ioc-enum-links.xml b/Documentation/DocBook/media/v4l/media-ioc-enum-links.xml index d2fc73ef8d5..355df43badc 100644 --- a/Documentation/DocBook/v4l/media-ioc-enum-links.xml +++ b/Documentation/DocBook/media/v4l/media-ioc-enum-links.xml @@ -139,7 +139,7 @@ </table> <table pgwide="1" frame="none" id="media-link-desc"> - <title>struct <structname>media_links_desc</structname></title> + <title>struct <structname>media_link_desc</structname></title> <tgroup cols="3"> &cs-str; <tbody valign="top"> diff --git a/Documentation/DocBook/v4l/media-ioc-setup-link.xml b/Documentation/DocBook/media/v4l/media-ioc-setup-link.xml index cec97af4dab..fc2e522ee65 100644 --- a/Documentation/DocBook/v4l/media-ioc-setup-link.xml +++ b/Documentation/DocBook/media/v4l/media-ioc-setup-link.xml @@ -72,15 +72,6 @@ <variablelist> <varlistentry> - <term><errorcode>EBUSY</errorcode></term> - <listitem> - <para>The link properties can't be changed because the link is - currently busy. This can be caused, for instance, by an active media - stream (audio or video) on the link. The ioctl shouldn't be retried if - no other action is performed before to fix the problem.</para> - </listitem> - </varlistentry> - <varlistentry> <term><errorcode>EINVAL</errorcode></term> <listitem> <para>The &media-link-desc; references a non-existing link, or the diff --git a/Documentation/DocBook/v4l/pipeline.pdf b/Documentation/DocBook/media/v4l/pipeline.pdf Binary files differindex ee3e37f04b6..ee3e37f04b6 100644 --- a/Documentation/DocBook/v4l/pipeline.pdf +++ b/Documentation/DocBook/media/v4l/pipeline.pdf diff --git a/Documentation/DocBook/v4l/pixfmt-grey.xml b/Documentation/DocBook/media/v4l/pixfmt-grey.xml index 3b72bc6b2de..3b72bc6b2de 100644 --- a/Documentation/DocBook/v4l/pixfmt-grey.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-grey.xml diff --git a/Documentation/DocBook/v4l/pixfmt-m420.xml b/Documentation/DocBook/media/v4l/pixfmt-m420.xml index ce4bc019e5c..ce4bc019e5c 100644 --- a/Documentation/DocBook/v4l/pixfmt-m420.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-m420.xml diff --git a/Documentation/DocBook/v4l/pixfmt-nv12.xml b/Documentation/DocBook/media/v4l/pixfmt-nv12.xml index 873f6703518..873f6703518 100644 --- a/Documentation/DocBook/v4l/pixfmt-nv12.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-nv12.xml diff --git a/Documentation/DocBook/v4l/pixfmt-nv12m.xml b/Documentation/DocBook/media/v4l/pixfmt-nv12m.xml index c9e166d9ded..c9e166d9ded 100644 --- a/Documentation/DocBook/v4l/pixfmt-nv12m.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-nv12m.xml diff --git a/Documentation/DocBook/v4l/pixfmt-nv12mt.xml b/Documentation/DocBook/media/v4l/pixfmt-nv12mt.xml index 7a2855a526c..7a2855a526c 100644 --- a/Documentation/DocBook/v4l/pixfmt-nv12mt.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-nv12mt.xml diff --git a/Documentation/DocBook/v4l/pixfmt-nv16.xml b/Documentation/DocBook/media/v4l/pixfmt-nv16.xml index 26094035fc0..26094035fc0 100644 --- a/Documentation/DocBook/v4l/pixfmt-nv16.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-nv16.xml diff --git a/Documentation/DocBook/v4l/pixfmt-packed-rgb.xml b/Documentation/DocBook/media/v4l/pixfmt-packed-rgb.xml index 4db272b8a0d..4db272b8a0d 100644 --- a/Documentation/DocBook/v4l/pixfmt-packed-rgb.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-packed-rgb.xml diff --git a/Documentation/DocBook/v4l/pixfmt-packed-yuv.xml b/Documentation/DocBook/media/v4l/pixfmt-packed-yuv.xml index 3cab5d0ca75..3cab5d0ca75 100644 --- a/Documentation/DocBook/v4l/pixfmt-packed-yuv.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-packed-yuv.xml diff --git a/Documentation/DocBook/v4l/pixfmt-sbggr16.xml b/Documentation/DocBook/media/v4l/pixfmt-sbggr16.xml index 519a9efbac1..519a9efbac1 100644 --- a/Documentation/DocBook/v4l/pixfmt-sbggr16.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-sbggr16.xml diff --git a/Documentation/DocBook/v4l/pixfmt-sbggr8.xml b/Documentation/DocBook/media/v4l/pixfmt-sbggr8.xml index 5fe84ecc2eb..5fe84ecc2eb 100644 --- a/Documentation/DocBook/v4l/pixfmt-sbggr8.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-sbggr8.xml diff --git a/Documentation/DocBook/v4l/pixfmt-sgbrg8.xml b/Documentation/DocBook/media/v4l/pixfmt-sgbrg8.xml index d67a472b088..d67a472b088 100644 --- a/Documentation/DocBook/v4l/pixfmt-sgbrg8.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-sgbrg8.xml diff --git a/Documentation/DocBook/v4l/pixfmt-sgrbg8.xml b/Documentation/DocBook/media/v4l/pixfmt-sgrbg8.xml index 0cdf13b8ac1..0cdf13b8ac1 100644 --- a/Documentation/DocBook/v4l/pixfmt-sgrbg8.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-sgrbg8.xml diff --git a/Documentation/DocBook/v4l/pixfmt-srggb10.xml b/Documentation/DocBook/media/v4l/pixfmt-srggb10.xml index 7b274092e60..7b274092e60 100644 --- a/Documentation/DocBook/v4l/pixfmt-srggb10.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-srggb10.xml diff --git a/Documentation/DocBook/v4l/pixfmt-srggb12.xml b/Documentation/DocBook/media/v4l/pixfmt-srggb12.xml index 9ba4fb690bc..9ba4fb690bc 100644 --- a/Documentation/DocBook/v4l/pixfmt-srggb12.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-srggb12.xml diff --git a/Documentation/DocBook/v4l/pixfmt-srggb8.xml b/Documentation/DocBook/media/v4l/pixfmt-srggb8.xml index 2570e3be3cf..2570e3be3cf 100644 --- a/Documentation/DocBook/v4l/pixfmt-srggb8.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-srggb8.xml diff --git a/Documentation/DocBook/v4l/pixfmt-uyvy.xml b/Documentation/DocBook/media/v4l/pixfmt-uyvy.xml index 816c8d467c1..816c8d467c1 100644 --- a/Documentation/DocBook/v4l/pixfmt-uyvy.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-uyvy.xml diff --git a/Documentation/DocBook/v4l/pixfmt-vyuy.xml b/Documentation/DocBook/media/v4l/pixfmt-vyuy.xml index 61f12a5e68d..61f12a5e68d 100644 --- a/Documentation/DocBook/v4l/pixfmt-vyuy.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-vyuy.xml diff --git a/Documentation/DocBook/v4l/pixfmt-y10.xml b/Documentation/DocBook/media/v4l/pixfmt-y10.xml index d065043db8d..d065043db8d 100644 --- a/Documentation/DocBook/v4l/pixfmt-y10.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-y10.xml diff --git a/Documentation/DocBook/v4l/pixfmt-y10b.xml b/Documentation/DocBook/media/v4l/pixfmt-y10b.xml index adb0ad808c9..adb0ad808c9 100644 --- a/Documentation/DocBook/v4l/pixfmt-y10b.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-y10b.xml diff --git a/Documentation/DocBook/v4l/pixfmt-y12.xml b/Documentation/DocBook/media/v4l/pixfmt-y12.xml index ff417b858cc..ff417b858cc 100644 --- a/Documentation/DocBook/v4l/pixfmt-y12.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-y12.xml diff --git a/Documentation/DocBook/v4l/pixfmt-y16.xml b/Documentation/DocBook/media/v4l/pixfmt-y16.xml index d5840401507..d5840401507 100644 --- a/Documentation/DocBook/v4l/pixfmt-y16.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-y16.xml diff --git a/Documentation/DocBook/v4l/pixfmt-y41p.xml b/Documentation/DocBook/media/v4l/pixfmt-y41p.xml index 73c8536efb0..73c8536efb0 100644 --- a/Documentation/DocBook/v4l/pixfmt-y41p.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-y41p.xml diff --git a/Documentation/DocBook/v4l/pixfmt-yuv410.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv410.xml index 8eb4a193d77..8eb4a193d77 100644 --- a/Documentation/DocBook/v4l/pixfmt-yuv410.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv410.xml diff --git a/Documentation/DocBook/v4l/pixfmt-yuv411p.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv411p.xml index 00e0960a986..00e0960a986 100644 --- a/Documentation/DocBook/v4l/pixfmt-yuv411p.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv411p.xml diff --git a/Documentation/DocBook/v4l/pixfmt-yuv420.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv420.xml index 42d7de5e456..42d7de5e456 100644 --- a/Documentation/DocBook/v4l/pixfmt-yuv420.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv420.xml diff --git a/Documentation/DocBook/v4l/pixfmt-yuv420m.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml index f5d8f57495c..f5d8f57495c 100644 --- a/Documentation/DocBook/v4l/pixfmt-yuv420m.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv420m.xml diff --git a/Documentation/DocBook/v4l/pixfmt-yuv422p.xml b/Documentation/DocBook/media/v4l/pixfmt-yuv422p.xml index 4348bd9f0d0..4348bd9f0d0 100644 --- a/Documentation/DocBook/v4l/pixfmt-yuv422p.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuv422p.xml diff --git a/Documentation/DocBook/v4l/pixfmt-yuyv.xml b/Documentation/DocBook/media/v4l/pixfmt-yuyv.xml index bdb2ffacbbc..bdb2ffacbbc 100644 --- a/Documentation/DocBook/v4l/pixfmt-yuyv.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yuyv.xml diff --git a/Documentation/DocBook/v4l/pixfmt-yvyu.xml b/Documentation/DocBook/media/v4l/pixfmt-yvyu.xml index 40d17ae39dd..40d17ae39dd 100644 --- a/Documentation/DocBook/v4l/pixfmt-yvyu.xml +++ b/Documentation/DocBook/media/v4l/pixfmt-yvyu.xml diff --git a/Documentation/DocBook/v4l/pixfmt.xml b/Documentation/DocBook/media/v4l/pixfmt.xml index deb660207f9..2ff6b7776d7 100644 --- a/Documentation/DocBook/v4l/pixfmt.xml +++ b/Documentation/DocBook/media/v4l/pixfmt.xml @@ -121,7 +121,7 @@ set this field to zero.</entry> an array of <structname>v4l2_plane_pix_format</structname> structures, describing all planes of that format.</para> <table pgwide="1" frame="none" id="v4l2-plane-pix-format"> - <title>struct <structname>vl42_plane_pix_format</structname></title> + <title>struct <structname>v4l2_plane_pix_format</structname></title> <tgroup cols="3"> &cs-str; <tbody valign="top"> @@ -741,10 +741,55 @@ information.</para> <row id="V4L2-PIX-FMT-MPEG"> <entry><constant>V4L2_PIX_FMT_MPEG</constant></entry> <entry>'MPEG'</entry> - <entry>MPEG stream. The actual format is determined by + <entry>MPEG multiplexed stream. The actual format is determined by extended control <constant>V4L2_CID_MPEG_STREAM_TYPE</constant>, see <xref linkend="mpeg-control-id" />.</entry> </row> + <row id="V4L2-PIX-FMT-H264"> + <entry><constant>V4L2_PIX_FMT_H264</constant></entry> + <entry>'H264'</entry> + <entry>H264 video elementary stream with start codes.</entry> + </row> + <row id="V4L2-PIX-FMT-H264-NO-SC"> + <entry><constant>V4L2_PIX_FMT_H264_NO_SC</constant></entry> + <entry>'AVC1'</entry> + <entry>H264 video elementary stream without start codes.</entry> + </row> + <row id="V4L2-PIX-FMT-H263"> + <entry><constant>V4L2_PIX_FMT_H263</constant></entry> + <entry>'H263'</entry> + <entry>H263 video elementary stream.</entry> + </row> + <row id="V4L2-PIX-FMT-MPEG1"> + <entry><constant>V4L2_PIX_FMT_MPEG1</constant></entry> + <entry>'MPG1'</entry> + <entry>MPEG1 video elementary stream.</entry> + </row> + <row id="V4L2-PIX-FMT-MPEG2"> + <entry><constant>V4L2_PIX_FMT_MPEG2</constant></entry> + <entry>'MPG2'</entry> + <entry>MPEG2 video elementary stream.</entry> + </row> + <row id="V4L2-PIX-FMT-MPEG4"> + <entry><constant>V4L2_PIX_FMT_MPEG4</constant></entry> + <entry>'MPG4'</entry> + <entry>MPEG4 video elementary stream.</entry> + </row> + <row id="V4L2-PIX-FMT-XVID"> + <entry><constant>V4L2_PIX_FMT_XVID</constant></entry> + <entry>'XVID'</entry> + <entry>Xvid video elementary stream.</entry> + </row> + <row id="V4L2-PIX-FMT-VC1-ANNEX-G"> + <entry><constant>V4L2_PIX_FMT_VC1_ANNEX_G</constant></entry> + <entry>'VC1G'</entry> + <entry>VC1, SMPTE 421M Annex G compliant stream.</entry> + </row> + <row id="V4L2-PIX-FMT-VC1-ANNEX-L"> + <entry><constant>V4L2_PIX_FMT_VC1_ANNEX_L</constant></entry> + <entry>'VC1L'</entry> + <entry>VC1, SMPTE 421M Annex L compliant stream.</entry> + </row> </tbody> </tgroup> </table> @@ -804,6 +849,12 @@ kernel sources in the file <filename>Documentation/video4linux/cx2341x/README.hm <entry>'CPIA'</entry> <entry>YUV format used by the gspca cpia1 driver.</entry> </row> + <row id="V4L2-PIX-FMT-JPGL"> + <entry><constant>V4L2_PIX_FMT_JPGL</constant></entry> + <entry>'JPGL'</entry> + <entry>JPEG-Light format (Pegasus Lossless JPEG) + used in Divio webcams NW 80x.</entry> + </row> <row id="V4L2-PIX-FMT-SPCA501"> <entry><constant>V4L2_PIX_FMT_SPCA501</constant></entry> <entry>'S501'</entry> @@ -854,6 +905,11 @@ kernel sources in the file <filename>Documentation/video4linux/cx2341x/README.hm <entry>'PJPG'</entry> <entry>Pixart 73xx JPEG format used by the gspca driver.</entry> </row> + <row id="V4L2-PIX-FMT-SE401"> + <entry><constant>V4L2_PIX_FMT_SE401</constant></entry> + <entry>'S401'</entry> + <entry>Compressed RGB format used by the gspca se401 driver</entry> + </row> <row id="V4L2-PIX-FMT-SQ905C"> <entry><constant>V4L2_PIX_FMT_SQ905C</constant></entry> <entry>'905C'</entry> diff --git a/Documentation/DocBook/v4l/planar-apis.xml b/Documentation/DocBook/media/v4l/planar-apis.xml index 878ce204048..878ce204048 100644 --- a/Documentation/DocBook/v4l/planar-apis.xml +++ b/Documentation/DocBook/media/v4l/planar-apis.xml diff --git a/Documentation/DocBook/v4l/remote_controllers.xml b/Documentation/DocBook/media/v4l/remote_controllers.xml index 160e464d44b..160e464d44b 100644 --- a/Documentation/DocBook/v4l/remote_controllers.xml +++ b/Documentation/DocBook/media/v4l/remote_controllers.xml diff --git a/Documentation/DocBook/v4l/subdev-formats.xml b/Documentation/DocBook/media/v4l/subdev-formats.xml index 8d3409d2c63..49c532ebbbb 100644 --- a/Documentation/DocBook/v4l/subdev-formats.xml +++ b/Documentation/DocBook/media/v4l/subdev-formats.xml @@ -380,9 +380,6 @@ <title>Bayer Patterns</title> <mediaobject> <imageobject> - <imagedata fileref="bayer.pdf" format="PS" /> - </imageobject> - <imageobject> <imagedata fileref="bayer.png" format="PNG" /> </imageobject> <textobject> @@ -2528,7 +2525,7 @@ <para>Those data formats consist of an ordered sequence of 8-bit bytes obtained from JPEG compression process. Additionally to the - <constant>_JPEG</constant> prefix the format code is made of + <constant>_JPEG</constant> postfix the format code is made of the following information. <itemizedlist> <listitem><para>The number of bus samples per entropy encoded byte.</para></listitem> diff --git a/Documentation/DocBook/v4l/v4l2.xml b/Documentation/DocBook/media/v4l/v4l2.xml index a7fd76d0dac..0d05e8747c1 100644 --- a/Documentation/DocBook/v4l/v4l2.xml +++ b/Documentation/DocBook/media/v4l/v4l2.xml @@ -87,7 +87,7 @@ Remote Controller chapter.</contrib> </author> <author> - <firstname>Pawel</firstname> + <firstname>Pawel</firstname> <surname>Osciak</surname> <contrib>Designed and documented the multi-planar API.</contrib> <affiliation> @@ -128,6 +128,15 @@ structs, ioctls) must be noted in more detail in the history chapter applications. --> <revision> + <revnumber>3.1</revnumber> + <date>2011-06-27</date> + <authorinitials>mcc, po, hv</authorinitials> + <revremark>Documented that VIDIOC_QUERYCAP now returns a per-subsystem version instead of a per-driver one. + Standardize an error code for invalid ioctl. + Added V4L2_CTRL_TYPE_BITMASK.</revremark> + </revision> + + <revision> <revnumber>2.6.39</revnumber> <date>2011-03-01</date> <authorinitials>mcc, po</authorinitials> @@ -401,7 +410,7 @@ and discussions on the V4L mailing list.</revremark> </partinfo> <title>Video for Linux Two API Specification</title> - <subtitle>Revision 2.6.39</subtitle> + <subtitle>Revision 3.1</subtitle> <chapter id="common"> &sub-common; diff --git a/Documentation/DocBook/v4l/v4l2grab.c.xml b/Documentation/DocBook/media/v4l/v4l2grab.c.xml index bed12e40be2..bed12e40be2 100644 --- a/Documentation/DocBook/v4l/v4l2grab.c.xml +++ b/Documentation/DocBook/media/v4l/v4l2grab.c.xml diff --git a/Documentation/DocBook/v4l/vbi_525.pdf b/Documentation/DocBook/media/v4l/vbi_525.pdf Binary files differindex 9e72c25b208..9e72c25b208 100644 --- a/Documentation/DocBook/v4l/vbi_525.pdf +++ b/Documentation/DocBook/media/v4l/vbi_525.pdf diff --git a/Documentation/DocBook/v4l/vbi_625.pdf b/Documentation/DocBook/media/v4l/vbi_625.pdf Binary files differindex 765235e33a4..765235e33a4 100644 --- a/Documentation/DocBook/v4l/vbi_625.pdf +++ b/Documentation/DocBook/media/v4l/vbi_625.pdf diff --git a/Documentation/DocBook/v4l/vbi_hsync.pdf b/Documentation/DocBook/media/v4l/vbi_hsync.pdf Binary files differindex 200b668189b..200b668189b 100644 --- a/Documentation/DocBook/v4l/vbi_hsync.pdf +++ b/Documentation/DocBook/media/v4l/vbi_hsync.pdf diff --git a/Documentation/DocBook/v4l/vidioc-cropcap.xml b/Documentation/DocBook/media/v4l/vidioc-cropcap.xml index 816e90e283c..b4f2f255211 100644 --- a/Documentation/DocBook/v4l/vidioc-cropcap.xml +++ b/Documentation/DocBook/media/v4l/vidioc-cropcap.xml @@ -156,19 +156,10 @@ on 22 Oct 2002 subject "Re:[V4L][patches!] Re:v4l2/kernel-2.5" --> <term><errorcode>EINVAL</errorcode></term> <listitem> <para>The &v4l2-cropcap; <structfield>type</structfield> is -invalid or the ioctl is not supported. This is not permitted for -video capture, output and overlay devices, which must support -<constant>VIDIOC_CROPCAP</constant>.</para> +invalid. This is not permitted for video capture, output and overlay devices, +which must support <constant>VIDIOC_CROPCAP</constant>.</para> </listitem> </varlistentry> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-dbg-g-chip-ident.xml b/Documentation/DocBook/media/v4l/vidioc-dbg-g-chip-ident.xml index 4a09e203af0..4ecd966808d 100644 --- a/Documentation/DocBook/v4l/vidioc-dbg-g-chip-ident.xml +++ b/Documentation/DocBook/media/v4l/vidioc-dbg-g-chip-ident.xml @@ -258,18 +258,9 @@ could not identify it.</entry> <varlistentry> <term><errorcode>EINVAL</errorcode></term> <listitem> - <para>The driver does not support this ioctl, or the -<structfield>match_type</structfield> is invalid.</para> + <para>The <structfield>match_type</structfield> is invalid.</para> </listitem> </varlistentry> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-dbg-g-register.xml b/Documentation/DocBook/media/v4l/vidioc-dbg-g-register.xml index 980c7f3e2fd..a44aebc7997 100644 --- a/Documentation/DocBook/v4l/vidioc-dbg-g-register.xml +++ b/Documentation/DocBook/media/v4l/vidioc-dbg-g-register.xml @@ -247,15 +247,6 @@ register.</entry> <variablelist> <varlistentry> - <term><errorcode>EINVAL</errorcode></term> - <listitem> - <para>The driver does not support this ioctl, or the kernel -was not compiled with the <constant>CONFIG_VIDEO_ADV_DEBUG</constant> -option, or the <structfield>match_type</structfield> is invalid, or the -selected chip or register does not exist.</para> - </listitem> - </varlistentry> - <varlistentry> <term><errorcode>EPERM</errorcode></term> <listitem> <para>Insufficient permissions. Root privileges are required @@ -265,11 +256,3 @@ to execute these ioctls.</para> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-dqevent.xml b/Documentation/DocBook/media/v4l/vidioc-dqevent.xml index 4e0a7cc3081..7769642ee43 100644 --- a/Documentation/DocBook/v4l/vidioc-dqevent.xml +++ b/Documentation/DocBook/media/v4l/vidioc-dqevent.xml @@ -81,6 +81,13 @@ </row> <row> <entry></entry> + <entry>&v4l2-event-ctrl;</entry> + <entry><structfield>ctrl</structfield></entry> + <entry>Event data for event V4L2_EVENT_CTRL. + </entry> + </row> + <row> + <entry></entry> <entry>__u8</entry> <entry><structfield>data</structfield>[64]</entry> <entry>Event data. Defined by the event type. The union @@ -110,8 +117,16 @@ <entry>Event timestamp.</entry> </row> <row> + <entry>u32</entry> + <entry><structfield>id</structfield></entry> + <entry></entry> + <entry>The ID associated with the event source. If the event does not + have an associated ID (this depends on the event type), then this + is 0.</entry> + </row> + <row> <entry>__u32</entry> - <entry><structfield>reserved</structfield>[9]</entry> + <entry><structfield>reserved</structfield>[8]</entry> <entry></entry> <entry>Reserved for future extensions. Drivers must set the array to zero.</entry> @@ -121,11 +136,7 @@ </table> </refsect1> + <refsect1> + &return-value; + </refsect1> </refentry> -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-encoder-cmd.xml b/Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml index b0dde943825..af7f3f2a36d 100644 --- a/Documentation/DocBook/v4l/vidioc-encoder-cmd.xml +++ b/Documentation/DocBook/media/v4l/vidioc-encoder-cmd.xml @@ -180,8 +180,7 @@ Pictures</wordasword>, rather than immediately.</entry> <varlistentry> <term><errorcode>EINVAL</errorcode></term> <listitem> - <para>The driver does not support this ioctl, or the -<structfield>cmd</structfield> field is invalid.</para> + <para>The <structfield>cmd</structfield> field is invalid.</para> </listitem> </varlistentry> <varlistentry> @@ -194,11 +193,3 @@ the encoder was not running.</para> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-enum-dv-presets.xml b/Documentation/DocBook/media/v4l/vidioc-enum-dv-presets.xml index 1d31427edd1..1d31427edd1 100644 --- a/Documentation/DocBook/v4l/vidioc-enum-dv-presets.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enum-dv-presets.xml diff --git a/Documentation/DocBook/v4l/vidioc-enum-fmt.xml b/Documentation/DocBook/media/v4l/vidioc-enum-fmt.xml index 71d373b6d36..71d373b6d36 100644 --- a/Documentation/DocBook/v4l/vidioc-enum-fmt.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enum-fmt.xml diff --git a/Documentation/DocBook/v4l/vidioc-enum-frameintervals.xml b/Documentation/DocBook/media/v4l/vidioc-enum-frameintervals.xml index 3c216e113a5..5fd72c4c33e 100644 --- a/Documentation/DocBook/v4l/vidioc-enum-frameintervals.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enum-frameintervals.xml @@ -254,17 +254,6 @@ enumerated.</entry> <refsect1> &return-value; - - <para>See the description section above for a list of return -values that <varname>errno</varname> can have.</para> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-enum-framesizes.xml b/Documentation/DocBook/media/v4l/vidioc-enum-framesizes.xml index 6afa4542c81..f77a13f486d 100644 --- a/Documentation/DocBook/v4l/vidioc-enum-framesizes.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enum-framesizes.xml @@ -267,16 +267,5 @@ application should zero out all members except for the <refsect1> &return-value; - - <para>See the description section above for a list of return -values that <varname>errno</varname> can have.</para> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-enumaudio.xml b/Documentation/DocBook/media/v4l/vidioc-enumaudio.xml index 9ae8f2d3a96..ea816ab2e49 100644 --- a/Documentation/DocBook/v4l/vidioc-enumaudio.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enumaudio.xml @@ -68,19 +68,9 @@ until the driver returns <errorcode>EINVAL</errorcode>.</para> <varlistentry> <term><errorcode>EINVAL</errorcode></term> <listitem> - <para>The number of the audio input is out of bounds, or -there are no audio inputs at all and this ioctl is not -supported.</para> + <para>The number of the audio input is out of bounds.</para> </listitem> </varlistentry> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-enumaudioout.xml b/Documentation/DocBook/media/v4l/vidioc-enumaudioout.xml index d3d7c0ab17b..2e87cedb0d3 100644 --- a/Documentation/DocBook/v4l/vidioc-enumaudioout.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enumaudioout.xml @@ -71,19 +71,9 @@ signal to a sound card are not audio outputs in this sense.</para> <varlistentry> <term><errorcode>EINVAL</errorcode></term> <listitem> - <para>The number of the audio output is out of bounds, or -there are no audio outputs at all and this ioctl is not -supported.</para> + <para>The number of the audio output is out of bounds.</para> </listitem> </varlistentry> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-enuminput.xml b/Documentation/DocBook/media/v4l/vidioc-enuminput.xml index 476fe1d2bba..476fe1d2bba 100644 --- a/Documentation/DocBook/v4l/vidioc-enuminput.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enuminput.xml diff --git a/Documentation/DocBook/v4l/vidioc-enumoutput.xml b/Documentation/DocBook/media/v4l/vidioc-enumoutput.xml index a281d26a195..a281d26a195 100644 --- a/Documentation/DocBook/v4l/vidioc-enumoutput.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enumoutput.xml diff --git a/Documentation/DocBook/v4l/vidioc-enumstd.xml b/Documentation/DocBook/media/v4l/vidioc-enumstd.xml index 95803fe2c8e..95803fe2c8e 100644 --- a/Documentation/DocBook/v4l/vidioc-enumstd.xml +++ b/Documentation/DocBook/media/v4l/vidioc-enumstd.xml diff --git a/Documentation/DocBook/v4l/vidioc-g-audio.xml b/Documentation/DocBook/media/v4l/vidioc-g-audio.xml index 65361a8c2b0..d7bb9b3738f 100644 --- a/Documentation/DocBook/v4l/vidioc-g-audio.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-audio.xml @@ -164,25 +164,9 @@ tuner.</entry> <listitem> <para>No audio inputs combine with the current video input, or the number of the selected audio input is out of bounds or it does -not combine, or there are no audio inputs at all and the ioctl is not -supported.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>EBUSY</errorcode></term> - <listitem> - <para>I/O is in progress, the input cannot be -switched.</para> +not combine.</para> </listitem> </varlistentry> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-g-audioout.xml b/Documentation/DocBook/media/v4l/vidioc-g-audioout.xml index 3632730c5c6..200a2704a97 100644 --- a/Documentation/DocBook/v4l/vidioc-g-audioout.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-audioout.xml @@ -130,25 +130,9 @@ applications must set the array to zero.</entry> <listitem> <para>No audio outputs combine with the current video output, or the number of the selected audio output is out of bounds or -it does not combine, or there are no audio outputs at all and the -ioctl is not supported.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>EBUSY</errorcode></term> - <listitem> - <para>I/O is in progress, the output cannot be -switched.</para> +it does not combine.</para> </listitem> </varlistentry> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-g-crop.xml b/Documentation/DocBook/media/v4l/vidioc-g-crop.xml index d235b1dedbe..01a50640dce 100644 --- a/Documentation/DocBook/v4l/vidioc-g-crop.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-crop.xml @@ -122,22 +122,5 @@ for &v4l2-cropcap; <structfield>bounds</structfield> is used.</entry> <refsect1> &return-value; - - <variablelist> - <varlistentry> - <term><errorcode>EINVAL</errorcode></term> - <listitem> - <para>Cropping is not supported.</para> - </listitem> - </varlistentry> - </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-g-ctrl.xml b/Documentation/DocBook/media/v4l/vidioc-g-ctrl.xml index 8b5e6ff7f3d..5146d00782e 100644 --- a/Documentation/DocBook/v4l/vidioc-g-ctrl.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-ctrl.xml @@ -117,6 +117,13 @@ because another applications took over control of the device function this control belongs to.</para> </listitem> </varlistentry> + <varlistentry> + <term><errorcode>EACCES</errorcode></term> + <listitem> + <para>Attempt to set a read-only control or to get a + write-only control.</para> + </listitem> + </varlistentry> </variablelist> </refsect1> </refentry> diff --git a/Documentation/DocBook/v4l/vidioc-g-dv-preset.xml b/Documentation/DocBook/media/v4l/vidioc-g-dv-preset.xml index d733721a751..7940c114939 100644 --- a/Documentation/DocBook/v4l/vidioc-g-dv-preset.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-dv-preset.xml @@ -97,14 +97,8 @@ If the preset is not supported, it returns an &EINVAL; </para> </tbody> </tgroup> </table> - + </refsect1> + <refsect1> + &return-value; </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-g-dv-timings.xml b/Documentation/DocBook/media/v4l/vidioc-g-dv-timings.xml index d5ec6abf0ce..4a8648ae9a6 100644 --- a/Documentation/DocBook/v4l/vidioc-g-dv-timings.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-dv-timings.xml @@ -212,12 +212,7 @@ bit 0 (V4L2_DV_VSYNC_POS_POL) is for vertical sync polarity and bit 1 (V4L2_DV_H </tgroup> </table> </refsect1> + <refsect1> + &return-value; + </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-g-enc-index.xml b/Documentation/DocBook/media/v4l/vidioc-g-enc-index.xml index 9f242e4b294..2aef02c9044 100644 --- a/Documentation/DocBook/v4l/vidioc-g-enc-index.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-enc-index.xml @@ -192,22 +192,5 @@ this mask to obtain the picture coding type.</entry> <refsect1> &return-value; - - <variablelist> - <varlistentry> - <term><errorcode>EINVAL</errorcode></term> - <listitem> - <para>The driver does not support this ioctl.</para> - </listitem> - </varlistentry> - </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-g-ext-ctrls.xml b/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml index 3aa7f8f9ff0..5122ce87e0b 100644 --- a/Documentation/DocBook/v4l/vidioc-g-ext-ctrls.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml @@ -250,6 +250,13 @@ These controls are described in <xref These controls are described in <xref linkend="fm-tx-controls" />.</entry> </row> + <row> + <entry><constant>V4L2_CTRL_CLASS_FLASH</constant></entry> + <entry>0x9c0000</entry> + <entry>The class containing flash device controls. +These controls are described in <xref + linkend="flash-controls" />.</entry> + </row> </tbody> </tgroup> </table> @@ -294,6 +301,13 @@ The field <structfield>size</structfield> is set to a value that is enough to store the payload and this error code is returned.</para> </listitem> </varlistentry> + <varlistentry> + <term><errorcode>EACCES</errorcode></term> + <listitem> + <para>Attempt to try or set a read-only control or to get a + write-only control.</para> + </listitem> + </varlistentry> </variablelist> </refsect1> </refentry> diff --git a/Documentation/DocBook/v4l/vidioc-g-fbuf.xml b/Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml index e7dda4822f0..055718231bc 100644 --- a/Documentation/DocBook/v4l/vidioc-g-fbuf.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-fbuf.xml @@ -446,28 +446,11 @@ overlay.</para> </listitem> </varlistentry> <varlistentry> - <term><errorcode>EBUSY</errorcode></term> - <listitem> - <para>The framebuffer parameters cannot be changed at this -time because overlay is already enabled, or capturing is enabled -and the hardware cannot capture and overlay simultaneously.</para> - </listitem> - </varlistentry> - <varlistentry> <term><errorcode>EINVAL</errorcode></term> <listitem> - <para>The ioctl is not supported or the -<constant>VIDIOC_S_FBUF</constant> parameters are unsuitable.</para> + <para>The <constant>VIDIOC_S_FBUF</constant> parameters are unsuitable.</para> </listitem> </varlistentry> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-g-fmt.xml b/Documentation/DocBook/media/v4l/vidioc-g-fmt.xml index a4ae59b664e..17fbda15137 100644 --- a/Documentation/DocBook/v4l/vidioc-g-fmt.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-fmt.xml @@ -184,29 +184,13 @@ capture and output devices.</entry> <variablelist> <varlistentry> - <term><errorcode>EBUSY</errorcode></term> - <listitem> - <para>The data format cannot be changed at this -time, for example because I/O is already in progress.</para> - </listitem> - </varlistentry> - <varlistentry> <term><errorcode>EINVAL</errorcode></term> <listitem> <para>The &v4l2-format; <structfield>type</structfield> -field is invalid, the requested buffer type not supported, or -<constant>VIDIOC_TRY_FMT</constant> was called and is not -supported with this buffer type.</para> +field is invalid, the requested buffer type not supported, or the +format is not supported with this buffer type.</para> </listitem> </varlistentry> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-g-frequency.xml b/Documentation/DocBook/media/v4l/vidioc-g-frequency.xml index 062d7206909..062d7206909 100644 --- a/Documentation/DocBook/v4l/vidioc-g-frequency.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-frequency.xml diff --git a/Documentation/DocBook/v4l/vidioc-g-input.xml b/Documentation/DocBook/media/v4l/vidioc-g-input.xml index ed076e92760..08ae82f131f 100644 --- a/Documentation/DocBook/v4l/vidioc-g-input.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-input.xml @@ -75,26 +75,9 @@ querying or negotiating any other parameters.</para> <varlistentry> <term><errorcode>EINVAL</errorcode></term> <listitem> - <para>The number of the video input is out of bounds, or -there are no video inputs at all and this ioctl is not -supported.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>EBUSY</errorcode></term> - <listitem> - <para>I/O is in progress, the input cannot be -switched.</para> + <para>The number of the video input is out of bounds.</para> </listitem> </varlistentry> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-g-jpegcomp.xml b/Documentation/DocBook/media/v4l/vidioc-g-jpegcomp.xml index 77394b28741..01ea24b8438 100644 --- a/Documentation/DocBook/v4l/vidioc-g-jpegcomp.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-jpegcomp.xml @@ -159,22 +159,5 @@ to add them.</para> <refsect1> &return-value; - - <variablelist> - <varlistentry> - <term><errorcode>EINVAL</errorcode></term> - <listitem> - <para>This ioctl is not supported.</para> - </listitem> - </varlistentry> - </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-g-modulator.xml b/Documentation/DocBook/media/v4l/vidioc-g-modulator.xml index 15ce660f0f5..15ce660f0f5 100644 --- a/Documentation/DocBook/v4l/vidioc-g-modulator.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-modulator.xml diff --git a/Documentation/DocBook/v4l/vidioc-g-output.xml b/Documentation/DocBook/media/v4l/vidioc-g-output.xml index 3ea8c0ed812..fd45f1c13cc 100644 --- a/Documentation/DocBook/v4l/vidioc-g-output.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-output.xml @@ -76,25 +76,9 @@ negotiating any other parameters.</para> <term><errorcode>EINVAL</errorcode></term> <listitem> <para>The number of the video output is out of bounds, or -there are no video outputs at all and this ioctl is not -supported.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>EBUSY</errorcode></term> - <listitem> - <para>I/O is in progress, the output cannot be -switched.</para> +there are no video outputs at all.</para> </listitem> </varlistentry> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-g-parm.xml b/Documentation/DocBook/media/v4l/vidioc-g-parm.xml index 392aa9e5571..19b1d85dd66 100644 --- a/Documentation/DocBook/v4l/vidioc-g-parm.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-parm.xml @@ -311,22 +311,5 @@ excessive motion blur. </para> <refsect1> &return-value; - - <variablelist> - <varlistentry> - <term><errorcode>EINVAL</errorcode></term> - <listitem> - <para>This ioctl is not supported.</para> - </listitem> - </varlistentry> - </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-g-priority.xml b/Documentation/DocBook/media/v4l/vidioc-g-priority.xml index 5fb00197864..8f5e3da7002 100644 --- a/Documentation/DocBook/v4l/vidioc-g-priority.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-priority.xml @@ -120,8 +120,7 @@ recording.</entry> <varlistentry> <term><errorcode>EINVAL</errorcode></term> <listitem> - <para>The requested priority value is invalid, or the -driver does not support access priorities.</para> + <para>The requested priority value is invalid.</para> </listitem> </varlistentry> <varlistentry> diff --git a/Documentation/DocBook/v4l/vidioc-g-sliced-vbi-cap.xml b/Documentation/DocBook/media/v4l/vidioc-g-sliced-vbi-cap.xml index 10e721b1737..71741daaf72 100644 --- a/Documentation/DocBook/v4l/vidioc-g-sliced-vbi-cap.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-sliced-vbi-cap.xml @@ -246,19 +246,10 @@ line systems.</entry> <varlistentry> <term><errorcode>EINVAL</errorcode></term> <listitem> - <para>The device does not support sliced VBI capturing or -output, or the value in the <structfield>type</structfield> field is + <para>The value in the <structfield>type</structfield> field is wrong.</para> </listitem> </varlistentry> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-g-std.xml b/Documentation/DocBook/media/v4l/vidioc-g-std.xml index 912f8513e5d..37996f25b5d 100644 --- a/Documentation/DocBook/v4l/vidioc-g-std.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-std.xml @@ -82,14 +82,7 @@ standards.</para> <varlistentry> <term><errorcode>EINVAL</errorcode></term> <listitem> - <para>This ioctl is not supported, or the -<constant>VIDIOC_S_STD</constant> parameter was unsuitable.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>EBUSY</errorcode></term> - <listitem> - <para>The device is busy and therefore can not change the standard</para> + <para>The <constant>VIDIOC_S_STD</constant> parameter was unsuitable.</para> </listitem> </varlistentry> </variablelist> diff --git a/Documentation/DocBook/v4l/vidioc-g-tuner.xml b/Documentation/DocBook/media/v4l/vidioc-g-tuner.xml index bd98c734c06..bd98c734c06 100644 --- a/Documentation/DocBook/v4l/vidioc-g-tuner.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-tuner.xml diff --git a/Documentation/DocBook/v4l/vidioc-log-status.xml b/Documentation/DocBook/media/v4l/vidioc-log-status.xml index 2634b7c88b5..5ded7d35e27 100644 --- a/Documentation/DocBook/v4l/vidioc-log-status.xml +++ b/Documentation/DocBook/media/v4l/vidioc-log-status.xml @@ -37,22 +37,5 @@ was introduced in Linux 2.6.15.</para> <refsect1> &return-value; - - <variablelist> - <varlistentry> - <term><errorcode>EINVAL</errorcode></term> - <listitem> - <para>The driver does not support this ioctl.</para> - </listitem> - </varlistentry> - </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-overlay.xml b/Documentation/DocBook/media/v4l/vidioc-overlay.xml index 1036c582cc1..250a7de1877 100644 --- a/Documentation/DocBook/v4l/vidioc-overlay.xml +++ b/Documentation/DocBook/media/v4l/vidioc-overlay.xml @@ -65,19 +65,10 @@ <varlistentry> <term><errorcode>EINVAL</errorcode></term> <listitem> - <para>Video overlay is not supported, or the -parameters have not been set up. See <xref + <para>The overlay parameters have not been set up. See <xref linkend="overlay" /> for the necessary steps.</para> </listitem> </varlistentry> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-qbuf.xml b/Documentation/DocBook/media/v4l/vidioc-qbuf.xml index f2b11f8a403..9caa49af580 100644 --- a/Documentation/DocBook/v4l/vidioc-qbuf.xml +++ b/Documentation/DocBook/media/v4l/vidioc-qbuf.xml @@ -158,15 +158,6 @@ or no buffers have been allocated yet, or the <structfield>userptr</structfield> or <structfield>length</structfield> are invalid.</para> </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>ENOMEM</errorcode></term> - <listitem> - <para>Not enough physical or virtual memory was available to -enqueue a user pointer buffer.</para> - </listitem> - </varlistentry> - <varlistentry> <term><errorcode>EIO</errorcode></term> <listitem> <para><constant>VIDIOC_DQBUF</constant> failed due to an @@ -184,11 +175,3 @@ continue streaming. </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-query-dv-preset.xml b/Documentation/DocBook/media/v4l/vidioc-query-dv-preset.xml index d272f7ab91b..23b17f60421 100644 --- a/Documentation/DocBook/v4l/vidioc-query-dv-preset.xml +++ b/Documentation/DocBook/media/v4l/vidioc-query-dv-preset.xml @@ -61,27 +61,5 @@ returned.</para> <refsect1> &return-value; - <variablelist> - <varlistentry> - <term><errorcode>EINVAL</errorcode></term> - <listitem> - <para>This ioctl is not supported.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>EBUSY</errorcode></term> - <listitem> - <para>The device is busy and therefore can not sense the preset</para> - </listitem> - </varlistentry> - </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-querybuf.xml b/Documentation/DocBook/media/v4l/vidioc-querybuf.xml index 5c104d42d31..5c104d42d31 100644 --- a/Documentation/DocBook/v4l/vidioc-querybuf.xml +++ b/Documentation/DocBook/media/v4l/vidioc-querybuf.xml diff --git a/Documentation/DocBook/v4l/vidioc-querycap.xml b/Documentation/DocBook/media/v4l/vidioc-querycap.xml index f29f1b86213..e3664d6f2de 100644 --- a/Documentation/DocBook/v4l/vidioc-querycap.xml +++ b/Documentation/DocBook/media/v4l/vidioc-querycap.xml @@ -67,9 +67,8 @@ driver is not compatible with this specification the ioctl returns an <entry><para>Name of the driver, a unique NUL-terminated ASCII string. For example: "bttv". Driver specific applications can use this information to verify the driver identity. It is also useful -to work around known bugs, or to identify drivers in error reports. -The driver version is stored in the <structfield>version</structfield> -field.</para><para>Storing strings in fixed sized arrays is bad +to work around known bugs, or to identify drivers in error reports.</para> +<para>Storing strings in fixed sized arrays is bad practice but unavoidable here. Drivers and applications should take precautions to never read or write beyond the end of the array and to make sure the strings are properly NUL-terminated.</para></entry> @@ -100,9 +99,13 @@ empty string (<structfield>bus_info</structfield>[0] = 0).<!-- XXX pci_dev->slot <row> <entry>__u32</entry> <entry><structfield>version</structfield></entry> - <entry><para>Version number of the driver. Together with -the <structfield>driver</structfield> field this identifies a -particular driver. The version number is formatted using the + <entry><para>Version number of the driver.</para> +<para>Starting on kernel 3.1, the version reported is provided per +V4L2 subsystem, following the same Kernel numberation scheme. However, it +should not always return the same version as the kernel, if, for example, +an stable or distribution-modified kernel uses the V4L2 stack from a +newer kernel.</para> +<para>The version number is formatted using the <constant>KERNEL_VERSION()</constant> macro:</para></entry> </row> <row> @@ -280,24 +283,5 @@ linkend="mmap">streaming</link> I/O method.</entry> <refsect1> &return-value; - - <variablelist> - <varlistentry> - <term><errorcode>EINVAL</errorcode></term> - <listitem> - <para>The device is not compatible with this -specification.</para> - </listitem> - </varlistentry> - </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> - diff --git a/Documentation/DocBook/v4l/vidioc-queryctrl.xml b/Documentation/DocBook/media/v4l/vidioc-queryctrl.xml index 0d5e8283cf3..677ea646c29 100644 --- a/Documentation/DocBook/v4l/vidioc-queryctrl.xml +++ b/Documentation/DocBook/media/v4l/vidioc-queryctrl.xml @@ -156,7 +156,8 @@ signed value.</entry> <entry>Maximum value, inclusive. This field gives an upper bound for <constant>V4L2_CTRL_TYPE_INTEGER</constant> controls and the highest valid index for <constant>V4L2_CTRL_TYPE_MENU</constant> -controls. +controls. For <constant>V4L2_CTRL_TYPE_BITMASK</constant> controls it is the +set of usable bits. For <constant>V4L2_CTRL_TYPE_STRING</constant> controls the maximum value gives the maximum length of the string. This length <emphasis>does not include the terminating zero</emphasis>. It may not be valid for any other type of control, including @@ -291,6 +292,15 @@ the menu items can be enumerated with the <constant>VIDIOC_QUERYMENU</constant> ioctl.</entry> </row> <row> + <entry><constant>V4L2_CTRL_TYPE_BITMASK</constant></entry> + <entry>0</entry> + <entry>n/a</entry> + <entry>any</entry> + <entry>A bitmask field. The maximum value is the set of bits that can +be used, all other bits are to be 0. The maximum value is interpreted as a __u32, +allowing the use of bit 31 in the bitmask.</entry> + </row> + <row> <entry><constant>V4L2_CTRL_TYPE_BUTTON</constant></entry> <entry>0</entry> <entry>0</entry> diff --git a/Documentation/DocBook/v4l/vidioc-querystd.xml b/Documentation/DocBook/media/v4l/vidioc-querystd.xml index 1a9e6039309..4b79c7c04ed 100644 --- a/Documentation/DocBook/v4l/vidioc-querystd.xml +++ b/Documentation/DocBook/media/v4l/vidioc-querystd.xml @@ -62,28 +62,5 @@ current video input or output.</para> <refsect1> &return-value; - - <variablelist> - <varlistentry> - <term><errorcode>EINVAL</errorcode></term> - <listitem> - <para>This ioctl is not supported.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>EBUSY</errorcode></term> - <listitem> - <para>The device is busy and therefore can not detect the standard</para> - </listitem> - </varlistentry> - </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-reqbufs.xml b/Documentation/DocBook/media/v4l/vidioc-reqbufs.xml index 69800ae2334..7be4b1d29b9 100644 --- a/Documentation/DocBook/v4l/vidioc-reqbufs.xml +++ b/Documentation/DocBook/media/v4l/vidioc-reqbufs.xml @@ -122,14 +122,6 @@ higher. This array should be zeroed by applications.</entry> <variablelist> <varlistentry> - <term><errorcode>EBUSY</errorcode></term> - <listitem> - <para>The driver supports multiple opens and I/O is already -in progress, or reallocation of buffers was attempted although one or -more are still mapped.</para> - </listitem> - </varlistentry> - <varlistentry> <term><errorcode>EINVAL</errorcode></term> <listitem> <para>The buffer type (<structfield>type</structfield> field) or the @@ -140,11 +132,3 @@ supported.</para> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-s-hw-freq-seek.xml b/Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml index c30dcc4232c..c30dcc4232c 100644 --- a/Documentation/DocBook/v4l/vidioc-s-hw-freq-seek.xml +++ b/Documentation/DocBook/media/v4l/vidioc-s-hw-freq-seek.xml diff --git a/Documentation/DocBook/v4l/vidioc-streamon.xml b/Documentation/DocBook/media/v4l/vidioc-streamon.xml index 75ed39bf4d2..81cca456905 100644 --- a/Documentation/DocBook/v4l/vidioc-streamon.xml +++ b/Documentation/DocBook/media/v4l/vidioc-streamon.xml @@ -88,9 +88,9 @@ synchronize with other events.</para> <varlistentry> <term><errorcode>EINVAL</errorcode></term> <listitem> - <para>Streaming I/O is not supported, the buffer -<structfield>type</structfield> is not supported, or no buffers have -been allocated (memory mapping) or enqueued (output) yet.</para> + <para>The buffer<structfield>type</structfield> is not supported, + or no buffers have been allocated (memory mapping) or enqueued + (output) yet.</para> </listitem> </varlistentry> <varlistentry> @@ -105,11 +105,3 @@ been allocated (memory mapping) or enqueued (output) yet.</para> </variablelist> </refsect1> </refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/vidioc-subdev-enum-frame-interval.xml b/Documentation/DocBook/media/v4l/vidioc-subdev-enum-frame-interval.xml index 2f8f4f0a023..2f8f4f0a023 100644 --- a/Documentation/DocBook/v4l/vidioc-subdev-enum-frame-interval.xml +++ b/Documentation/DocBook/media/v4l/vidioc-subdev-enum-frame-interval.xml diff --git a/Documentation/DocBook/v4l/vidioc-subdev-enum-frame-size.xml b/Documentation/DocBook/media/v4l/vidioc-subdev-enum-frame-size.xml index 79ce42b7c60..79ce42b7c60 100644 --- a/Documentation/DocBook/v4l/vidioc-subdev-enum-frame-size.xml +++ b/Documentation/DocBook/media/v4l/vidioc-subdev-enum-frame-size.xml diff --git a/Documentation/DocBook/v4l/vidioc-subdev-enum-mbus-code.xml b/Documentation/DocBook/media/v4l/vidioc-subdev-enum-mbus-code.xml index a6b3432449f..a6b3432449f 100644 --- a/Documentation/DocBook/v4l/vidioc-subdev-enum-mbus-code.xml +++ b/Documentation/DocBook/media/v4l/vidioc-subdev-enum-mbus-code.xml diff --git a/Documentation/DocBook/v4l/vidioc-subdev-g-crop.xml b/Documentation/DocBook/media/v4l/vidioc-subdev-g-crop.xml index 06197323a8c..06197323a8c 100644 --- a/Documentation/DocBook/v4l/vidioc-subdev-g-crop.xml +++ b/Documentation/DocBook/media/v4l/vidioc-subdev-g-crop.xml diff --git a/Documentation/DocBook/v4l/vidioc-subdev-g-fmt.xml b/Documentation/DocBook/media/v4l/vidioc-subdev-g-fmt.xml index f367c570c53..a67cde6f8c5 100644 --- a/Documentation/DocBook/v4l/vidioc-subdev-g-fmt.xml +++ b/Documentation/DocBook/media/v4l/vidioc-subdev-g-fmt.xml @@ -177,4 +177,7 @@ </varlistentry> </variablelist> </refsect1> + <refsect1> + &return-value; + </refsect1> </refentry> diff --git a/Documentation/DocBook/v4l/vidioc-subdev-g-frame-interval.xml b/Documentation/DocBook/media/v4l/vidioc-subdev-g-frame-interval.xml index 0bc3ea22d31..0bc3ea22d31 100644 --- a/Documentation/DocBook/v4l/vidioc-subdev-g-frame-interval.xml +++ b/Documentation/DocBook/media/v4l/vidioc-subdev-g-frame-interval.xml diff --git a/Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml b/Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml new file mode 100644 index 00000000000..69c0d8a2a3d --- /dev/null +++ b/Documentation/DocBook/media/v4l/vidioc-subscribe-event.xml @@ -0,0 +1,297 @@ +<refentry id="vidioc-subscribe-event"> + <refmeta> + <refentrytitle>ioctl VIDIOC_SUBSCRIBE_EVENT, VIDIOC_UNSUBSCRIBE_EVENT</refentrytitle> + &manvol; + </refmeta> + + <refnamediv> + <refname>VIDIOC_SUBSCRIBE_EVENT, VIDIOC_UNSUBSCRIBE_EVENT</refname> + <refpurpose>Subscribe or unsubscribe event</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <funcsynopsis> + <funcprototype> + <funcdef>int <function>ioctl</function></funcdef> + <paramdef>int <parameter>fd</parameter></paramdef> + <paramdef>int <parameter>request</parameter></paramdef> + <paramdef>struct v4l2_event_subscription +*<parameter>argp</parameter></paramdef> + </funcprototype> + </funcsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Arguments</title> + + <variablelist> + <varlistentry> + <term><parameter>fd</parameter></term> + <listitem> + <para>&fd;</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>request</parameter></term> + <listitem> + <para>VIDIOC_SUBSCRIBE_EVENT, VIDIOC_UNSUBSCRIBE_EVENT</para> + </listitem> + </varlistentry> + <varlistentry> + <term><parameter>argp</parameter></term> + <listitem> + <para></para> + </listitem> + </varlistentry> + </variablelist> + </refsect1> + + <refsect1> + <title>Description</title> + + <para>Subscribe or unsubscribe V4L2 event. Subscribed events are + dequeued by using the &VIDIOC-DQEVENT; ioctl.</para> + + <table frame="none" pgwide="1" id="v4l2-event-subscription"> + <title>struct <structname>v4l2_event_subscription</structname></title> + <tgroup cols="3"> + &cs-str; + <tbody valign="top"> + <row> + <entry>__u32</entry> + <entry><structfield>type</structfield></entry> + <entry>Type of the event.</entry> + </row> + <row> + <entry>__u32</entry> + <entry><structfield>id</structfield></entry> + <entry>ID of the event source. If there is no ID associated with + the event source, then set this to 0. Whether or not an event + needs an ID depends on the event type.</entry> + </row> + <row> + <entry>__u32</entry> + <entry><structfield>flags</structfield></entry> + <entry>Event flags, see <xref linkend="event-flags" />.</entry> + </row> + <row> + <entry>__u32</entry> + <entry><structfield>reserved</structfield>[5]</entry> + <entry>Reserved for future extensions. Drivers and applications + must set the array to zero.</entry> + </row> + </tbody> + </tgroup> + </table> + + <table frame="none" pgwide="1" id="event-type"> + <title>Event Types</title> + <tgroup cols="3"> + &cs-def; + <tbody valign="top"> + <row> + <entry><constant>V4L2_EVENT_ALL</constant></entry> + <entry>0</entry> + <entry>All events. V4L2_EVENT_ALL is valid only for + VIDIOC_UNSUBSCRIBE_EVENT for unsubscribing all events at once. + </entry> + </row> + <row> + <entry><constant>V4L2_EVENT_VSYNC</constant></entry> + <entry>1</entry> + <entry>This event is triggered on the vertical sync. + This event has a &v4l2-event-vsync; associated with it. + </entry> + </row> + <row> + <entry><constant>V4L2_EVENT_EOS</constant></entry> + <entry>2</entry> + <entry>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. + </entry> + </row> + <row> + <entry><constant>V4L2_EVENT_CTRL</constant></entry> + <entry>3</entry> + <entry><para>This event requires that the <structfield>id</structfield> + matches the control ID from which you want to receive events. + This event is triggered if the control's value changes, if a + button control is pressed or if the control's flags change. + This event has a &v4l2-event-ctrl; associated with it. This struct + contains much of the same information as &v4l2-queryctrl; and + &v4l2-control;.</para> + + <para>If the event is generated due to a call to &VIDIOC-S-CTRL; or + &VIDIOC-S-EXT-CTRLS;, then the event will <emphasis>not</emphasis> be sent to + the file handle that called the ioctl function. This prevents + nasty feedback loops. If you <emphasis>do</emphasis> want to get the + event, then set the <constant>V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK</constant> + flag. + </para> + + <para>This event type will ensure that no information is lost when + more events are raised than there is room internally. In that + case the &v4l2-event-ctrl; of the second-oldest event is kept, + but the <structfield>changes</structfield> field of the + second-oldest event is ORed with the <structfield>changes</structfield> + field of the oldest event.</para> + </entry> + </row> + <row> + <entry><constant>V4L2_EVENT_PRIVATE_START</constant></entry> + <entry>0x08000000</entry> + <entry>Base event number for driver-private events.</entry> + </row> + </tbody> + </tgroup> + </table> + + <table pgwide="1" frame="none" id="event-flags"> + <title>Event Flags</title> + <tgroup cols="3"> + &cs-def; + <tbody valign="top"> + <row> + <entry><constant>V4L2_EVENT_SUB_FL_SEND_INITIAL</constant></entry> + <entry>0x0001</entry> + <entry>When this event is subscribed an initial event will be sent + containing the current status. This only makes sense for events + that are triggered by a status change such as <constant>V4L2_EVENT_CTRL</constant>. + Other events will ignore this flag.</entry> + </row> + <row> + <entry><constant>V4L2_EVENT_SUB_FL_ALLOW_FEEDBACK</constant></entry> + <entry>0x0002</entry> + <entry><para>If set, then events directly caused by an ioctl will also be sent to + the filehandle that called that ioctl. For example, changing a control using + &VIDIOC-S-CTRL; will cause a V4L2_EVENT_CTRL to be sent back to that same + filehandle. Normally such events are suppressed to prevent feedback loops + where an application changes a control to a one value and then another, and + then receives an event telling it that that control has changed to the first + value.</para> + + <para>Since it can't tell whether that event was caused by another application + or by the &VIDIOC-S-CTRL; call it is hard to decide whether to set the + control to the value in the event, or ignore it.</para> + + <para>Think carefully when you set this flag so you won't get into situations + like that.</para> + </entry> + </row> + </tbody> + </tgroup> + </table> + + <table frame="none" pgwide="1" id="v4l2-event-vsync"> + <title>struct <structname>v4l2_event_vsync</structname></title> + <tgroup cols="3"> + &cs-str; + <tbody valign="top"> + <row> + <entry>__u8</entry> + <entry><structfield>field</structfield></entry> + <entry>The upcoming field. See &v4l2-field;.</entry> + </row> + </tbody> + </tgroup> + </table> + + <table frame="none" pgwide="1" id="v4l2-event-ctrl"> + <title>struct <structname>v4l2_event_ctrl</structname></title> + <tgroup cols="4"> + &cs-str; + <tbody valign="top"> + <row> + <entry>__u32</entry> + <entry><structfield>changes</structfield></entry> + <entry></entry> + <entry>A bitmask that tells what has changed. See <xref linkend="changes-flags" />.</entry> + </row> + <row> + <entry>__u32</entry> + <entry><structfield>type</structfield></entry> + <entry></entry> + <entry>The type of the control. See &v4l2-ctrl-type;.</entry> + </row> + <row> + <entry>union (anonymous)</entry> + <entry></entry> + <entry></entry> + <entry></entry> + </row> + <row> + <entry></entry> + <entry>__s32</entry> + <entry><structfield>value</structfield></entry> + <entry>The 32-bit value of the control for 32-bit control types. + This is 0 for string controls since the value of a string + cannot be passed using &VIDIOC-DQEVENT;.</entry> + </row> + <row> + <entry></entry> + <entry>__s64</entry> + <entry><structfield>value64</structfield></entry> + <entry>The 64-bit value of the control for 64-bit control types.</entry> + </row> + <row> + <entry>__u32</entry> + <entry><structfield>flags</structfield></entry> + <entry></entry> + <entry>The control flags. See <xref linkend="control-flags" />.</entry> + </row> + <row> + <entry>__s32</entry> + <entry><structfield>minimum</structfield></entry> + <entry></entry> + <entry>The minimum value of the control. See &v4l2-queryctrl;.</entry> + </row> + <row> + <entry>__s32</entry> + <entry><structfield>maximum</structfield></entry> + <entry></entry> + <entry>The maximum value of the control. See &v4l2-queryctrl;.</entry> + </row> + <row> + <entry>__s32</entry> + <entry><structfield>step</structfield></entry> + <entry></entry> + <entry>The step value of the control. See &v4l2-queryctrl;.</entry> + </row> + <row> + <entry>__s32</entry> + <entry><structfield>default_value</structfield></entry> + <entry></entry> + <entry>The default value value of the control. See &v4l2-queryctrl;.</entry> + </row> + </tbody> + </tgroup> + </table> + + <table pgwide="1" frame="none" id="changes-flags"> + <title>Changes</title> + <tgroup cols="3"> + &cs-def; + <tbody valign="top"> + <row> + <entry><constant>V4L2_EVENT_CTRL_CH_VALUE</constant></entry> + <entry>0x0001</entry> + <entry>This control event was triggered because the value of the control + changed. Special case: if a button control is pressed, then this + event is sent as well, even though there is not explicit value + associated with a button control.</entry> + </row> + <row> + <entry><constant>V4L2_EVENT_CTRL_CH_FLAGS</constant></entry> + <entry>0x0002</entry> + <entry>This control event was triggered because the control flags + changed.</entry> + </row> + </tbody> + </tgroup> + </table> + </refsect1> + <refsect1> + &return-value; + </refsect1> +</refentry> diff --git a/Documentation/DocBook/media/vbi_525.gif.b64 b/Documentation/DocBook/media/vbi_525.gif.b64 new file mode 100644 index 00000000000..d5dcf06f2ae --- /dev/null +++ b/Documentation/DocBook/media/vbi_525.gif.b64 @@ -0,0 +1,84 @@ +R0lGODlhKgPIAIAAAAAAAP///yH5BAEAAAEALAAAAAAqA8gAAAL+jI+py+0Po5y02ouz3rz7D4bi +SJbmiabqWgJs475LLCt0fdy4oeN9/QPuEEFZkXVcJZXDXNP5pC0TgGrMSrRMidhA1/uNbB9j2CZ8 +Kc+qHDXDTT2jK3BuPau13vFpdmc/p6Uh5SeYoXMHyFNomEeYiNEVKCFFx8Wz2Eh56YWp2bfnGXk1 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+iS7N2daic1VncEEz3N/6MbVyNU1TV0tUdL3VuF6aKnQhJdrpWve62M2udrfL3e5697vgDa94x0ve +8lIkIAA7 diff --git a/Documentation/DocBook/media.tmpl b/Documentation/DocBook/media_api.tmpl index 88f2cc680cc..4e8e8985cc1 100644 --- a/Documentation/DocBook/media.tmpl +++ b/Documentation/DocBook/media_api.tmpl @@ -8,7 +8,8 @@ <!ENTITY ie "i. e."> <!ENTITY fd "File descriptor returned by <link linkend='func-open'><function>open()</function></link>."> <!ENTITY i2c "I<superscript>2</superscript>C"> -<!ENTITY return-value "<title>Return Value</title><para>On success <returnvalue>0</returnvalue> is returned, on error <returnvalue>-1</returnvalue> and the <varname>errno</varname> variable is set appropriately:</para>"> +<!ENTITY return-value "<title>Return Value</title><para>On success <returnvalue>0</returnvalue> is returned, on error <returnvalue>-1</returnvalue> and the <varname>errno</varname> variable is set appropriately. The generic error codes are described at the <link linkend='gen-errors'>Generic Error Codes</link> chapter.</para>"> +<!ENTITY return-value-dvb "<para>RETURN VALUE</para><para>On success <returnvalue>0</returnvalue> is returned, on error <returnvalue>-1</returnvalue> and the <varname>errno</varname> variable is set appropriately. The generic error codes are described at the <link linkend='gen-errors'>Generic Error Codes</link> chapter.</para>"> <!ENTITY manvol "<manvolnum>2</manvolnum>"> <!-- Table templates: structs, structs w/union, defines. --> @@ -110,6 +111,11 @@ Foundation. A copy of the license is included in the chapter entitled &sub-media-controller; </part> +<chapter id="gen_errors"> +&sub-gen-errors; +</chapter> + + &sub-fdl-appendix; </book> diff --git a/Documentation/DocBook/v4l/bayer.pdf b/Documentation/DocBook/v4l/bayer.pdf Binary files differdeleted file mode 100644 index 905e60e6cd4..00000000000 --- a/Documentation/DocBook/v4l/bayer.pdf +++ /dev/null diff --git a/Documentation/DocBook/v4l/bayer.png b/Documentation/DocBook/v4l/bayer.png Binary files differdeleted file mode 100644 index 9b15fb22e81..00000000000 --- a/Documentation/DocBook/v4l/bayer.png +++ /dev/null diff --git a/Documentation/DocBook/v4l/crop.gif b/Documentation/DocBook/v4l/crop.gif Binary files differdeleted file mode 100644 index 3b9e7d836d4..00000000000 --- a/Documentation/DocBook/v4l/crop.gif +++ /dev/null diff --git a/Documentation/DocBook/v4l/dev-event.xml b/Documentation/DocBook/v4l/dev-event.xml deleted file mode 100644 index be5a98fb4fa..00000000000 --- a/Documentation/DocBook/v4l/dev-event.xml +++ /dev/null @@ -1,31 +0,0 @@ - <title>Event Interface</title> - - <para>The V4L2 event interface provides means for user to get - immediately notified on certain conditions taking place on a device. - This might include start of frame or loss of signal events, for - example. - </para> - - <para>To receive events, the events the user is interested in first must - be subscribed using the &VIDIOC-SUBSCRIBE-EVENT; ioctl. Once an event is - subscribed, the events of subscribed types are dequeueable using the - &VIDIOC-DQEVENT; ioctl. Events may be unsubscribed using - VIDIOC_UNSUBSCRIBE_EVENT ioctl. The special event type V4L2_EVENT_ALL may - be used to unsubscribe all the events the driver supports.</para> - - <para>The event subscriptions and event queues are specific to file - handles. Subscribing an event on one file handle does not affect - other file handles. - </para> - - <para>The information on dequeueable events is obtained by using select or - poll system calls on video devices. The V4L2 events use POLLPRI events on - poll system call and exceptions on select system call. </para> - - <!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: - --> diff --git a/Documentation/DocBook/v4l/fieldseq_bt.gif b/Documentation/DocBook/v4l/fieldseq_bt.gif Binary files differdeleted file mode 100644 index 60e8569a76c..00000000000 --- a/Documentation/DocBook/v4l/fieldseq_bt.gif +++ /dev/null diff --git a/Documentation/DocBook/v4l/fieldseq_tb.gif b/Documentation/DocBook/v4l/fieldseq_tb.gif Binary files differdeleted file mode 100644 index 718492f1cfc..00000000000 --- a/Documentation/DocBook/v4l/fieldseq_tb.gif +++ /dev/null diff --git a/Documentation/DocBook/v4l/func-ioctl.xml b/Documentation/DocBook/v4l/func-ioctl.xml deleted file mode 100644 index b60fd37a629..00000000000 --- a/Documentation/DocBook/v4l/func-ioctl.xml +++ /dev/null @@ -1,145 +0,0 @@ -<refentry id="func-ioctl"> - <refmeta> - <refentrytitle>V4L2 ioctl()</refentrytitle> - &manvol; - </refmeta> - - <refnamediv> - <refname>v4l2-ioctl</refname> - <refpurpose>Program a V4L2 device</refpurpose> - </refnamediv> - - <refsynopsisdiv> - <funcsynopsis> - <funcsynopsisinfo>#include <sys/ioctl.h></funcsynopsisinfo> - <funcprototype> - <funcdef>int <function>ioctl</function></funcdef> - <paramdef>int <parameter>fd</parameter></paramdef> - <paramdef>int <parameter>request</parameter></paramdef> - <paramdef>void *<parameter>argp</parameter></paramdef> - </funcprototype> - </funcsynopsis> - </refsynopsisdiv> - - <refsect1> - <title>Arguments</title> - - <variablelist> - <varlistentry> - <term><parameter>fd</parameter></term> - <listitem> - <para>&fd;</para> - </listitem> - </varlistentry> - <varlistentry> - <term><parameter>request</parameter></term> - <listitem> - <para>V4L2 ioctl request code as defined in the <filename>videodev2.h</filename> header file, for example -VIDIOC_QUERYCAP.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><parameter>argp</parameter></term> - <listitem> - <para>Pointer to a function parameter, usually a structure.</para> - </listitem> - </varlistentry> - </variablelist> - </refsect1> - - <refsect1> - <title>Description</title> - - <para>The <function>ioctl()</function> function is used to program -V4L2 devices. The argument <parameter>fd</parameter> must be an open -file descriptor. An ioctl <parameter>request</parameter> has encoded -in it whether the argument is an input, output or read/write -parameter, and the size of the argument <parameter>argp</parameter> in -bytes. Macros and defines specifying V4L2 ioctl requests are located -in the <filename>videodev2.h</filename> header file. -Applications should use their own copy, not include the version in the -kernel sources on the system they compile on. All V4L2 ioctl requests, -their respective function and parameters are specified in <xref - linkend="user-func" />.</para> - </refsect1> - - <refsect1> - <title>Return Value</title> - - <para>On success the <function>ioctl()</function> function returns -<returnvalue>0</returnvalue> and does not reset the -<varname>errno</varname> variable. On failure -<returnvalue>-1</returnvalue> is returned, when the ioctl takes an -output or read/write parameter it remains unmodified, and the -<varname>errno</varname> variable is set appropriately. See below for -possible error codes. Generic errors like <errorcode>EBADF</errorcode> -or <errorcode>EFAULT</errorcode> are not listed in the sections -discussing individual ioctl requests.</para> - <para>Note ioctls may return undefined error codes. Since errors -may have side effects such as a driver reset applications should -abort on unexpected errors.</para> - - <variablelist> - <varlistentry> - <term><errorcode>EBADF</errorcode></term> - <listitem> - <para><parameter>fd</parameter> is not a valid open file -descriptor.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>EBUSY</errorcode></term> - <listitem> - <para>The property cannot be changed right now. Typically -this error code is returned when I/O is in progress or the driver -supports multiple opens and another process locked the property.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>EFAULT</errorcode></term> - <listitem> - <para><parameter>argp</parameter> references an inaccessible -memory area.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>ENOTTY</errorcode></term> - <listitem> - <para><parameter>fd</parameter> is not associated with a -character special device.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>EINVAL</errorcode></term> - <listitem> - <para>The <parameter>request</parameter> or the data pointed -to by <parameter>argp</parameter> is not valid. This is a very common -error code, see the individual ioctl requests listed in <xref - linkend="user-func" /> for actual causes.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>ENOMEM</errorcode></term> - <listitem> - <para>Not enough physical or virtual memory was available to -complete the request.</para> - </listitem> - </varlistentry> - <varlistentry> - <term><errorcode>ERANGE</errorcode></term> - <listitem> - <para>The application attempted to set a control with the -&VIDIOC-S-CTRL; ioctl to a value which is out of bounds.</para> - </listitem> - </varlistentry> - </variablelist> - </refsect1> -</refentry> - -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/DocBook/v4l/nv12mt.gif b/Documentation/DocBook/v4l/nv12mt.gif Binary files differdeleted file mode 100644 index ef2d4cf8367..00000000000 --- a/Documentation/DocBook/v4l/nv12mt.gif +++ /dev/null diff --git a/Documentation/DocBook/v4l/nv12mt_example.gif b/Documentation/DocBook/v4l/nv12mt_example.gif Binary files differdeleted file mode 100644 index df81d68108e..00000000000 --- a/Documentation/DocBook/v4l/nv12mt_example.gif +++ /dev/null diff --git a/Documentation/DocBook/v4l/pipeline.png b/Documentation/DocBook/v4l/pipeline.png Binary files differdeleted file mode 100644 index f19b86c2c24..00000000000 --- a/Documentation/DocBook/v4l/pipeline.png +++ /dev/null diff --git a/Documentation/DocBook/v4l/vbi_525.gif b/Documentation/DocBook/v4l/vbi_525.gif Binary files differdeleted file mode 100644 index 5580b690d50..00000000000 --- a/Documentation/DocBook/v4l/vbi_525.gif +++ /dev/null diff --git a/Documentation/DocBook/v4l/vbi_625.gif b/Documentation/DocBook/v4l/vbi_625.gif Binary files differdeleted file mode 100644 index 34e3251983c..00000000000 --- a/Documentation/DocBook/v4l/vbi_625.gif +++ /dev/null diff --git a/Documentation/DocBook/v4l/vbi_hsync.gif b/Documentation/DocBook/v4l/vbi_hsync.gif Binary files differdeleted file mode 100644 index b02434d3b35..00000000000 --- a/Documentation/DocBook/v4l/vbi_hsync.gif +++ /dev/null diff --git a/Documentation/DocBook/v4l/videodev2.h.xml b/Documentation/DocBook/v4l/videodev2.h.xml deleted file mode 100644 index c50536a4f59..00000000000 --- a/Documentation/DocBook/v4l/videodev2.h.xml +++ /dev/null @@ -1,1946 +0,0 @@ -<programlisting> -/* - * Video for Linux Two header file - * - * Copyright (C) 1999-2007 the contributors - * - * 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. - * - * Alternatively you can redistribute this file under the terms of the - * BSD license as stated below: - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * 3. The names of its contributors may not be used to endorse or promote - * products derived from this software without specific prior written - * permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED - * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR - * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF - * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING - * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS - * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * Header file for v4l or V4L2 drivers and applications - * with public API. - * All kernel-specific stuff were moved to media/v4l2-dev.h, so - * no #if __KERNEL tests are allowed here - * - * See http://linuxtv.org for more info - * - * Author: Bill Dirks <bill@thedirks.org> - * Justin Schoeman - * Hans Verkuil <hverkuil@xs4all.nl> - * et al. - */ -#ifndef __LINUX_VIDEODEV2_H -#define __LINUX_VIDEODEV2_H - -#ifdef __KERNEL__ -#include <linux/time.h> /* need struct timeval */ -#else -#include <sys/time.h> -#endif -#include <linux/compiler.h> -#include <linux/ioctl.h> -#include <linux/types.h> - -/* - * Common stuff for both V4L1 and V4L2 - * Moved from videodev.h - */ -#define VIDEO_MAX_FRAME 32 -#define VIDEO_MAX_PLANES 8 - -#ifndef __KERNEL__ - -/* These defines are V4L1 specific and should not be used with the V4L2 API! - They will be removed from this header in the future. */ - -#define VID_TYPE_CAPTURE 1 /* Can capture */ -#define VID_TYPE_TUNER 2 /* Can tune */ -#define VID_TYPE_TELETEXT 4 /* Does teletext */ -#define VID_TYPE_OVERLAY 8 /* Overlay onto frame buffer */ -#define VID_TYPE_CHROMAKEY 16 /* Overlay by chromakey */ -#define VID_TYPE_CLIPPING 32 /* Can clip */ -#define VID_TYPE_FRAMERAM 64 /* Uses the frame buffer memory */ -#define VID_TYPE_SCALES 128 /* Scalable */ -#define VID_TYPE_MONOCHROME 256 /* Monochrome only */ -#define VID_TYPE_SUBCAPTURE 512 /* Can capture subareas of the image */ -#define VID_TYPE_MPEG_DECODER 1024 /* Can decode MPEG streams */ -#define VID_TYPE_MPEG_ENCODER 2048 /* Can encode MPEG streams */ -#define VID_TYPE_MJPEG_DECODER 4096 /* Can decode MJPEG streams */ -#define VID_TYPE_MJPEG_ENCODER 8192 /* Can encode MJPEG streams */ -#endif - -/* - * M I S C E L L A N E O U S - */ - -/* Four-character-code (FOURCC) */ -#define v4l2_fourcc(a, b, c, d)\ - ((__u32)(a) | ((__u32)(b) << 8) | ((__u32)(c) << 16) | ((__u32)(d) << 24)) - -/* - * E N U M S - */ -enum <link linkend="v4l2-field">v4l2_field</link> { - V4L2_FIELD_ANY = 0, /* driver can choose from none, - top, bottom, interlaced - depending on whatever it thinks - is approximate ... */ - V4L2_FIELD_NONE = 1, /* this device has no fields ... */ - V4L2_FIELD_TOP = 2, /* top field only */ - V4L2_FIELD_BOTTOM = 3, /* bottom field only */ - V4L2_FIELD_INTERLACED = 4, /* both fields interlaced */ - V4L2_FIELD_SEQ_TB = 5, /* both fields sequential into one - buffer, top-bottom order */ - V4L2_FIELD_SEQ_BT = 6, /* same as above + bottom-top order */ - V4L2_FIELD_ALTERNATE = 7, /* both fields alternating into - separate buffers */ - V4L2_FIELD_INTERLACED_TB = 8, /* both fields interlaced, top field - first and the top field is - transmitted first */ - V4L2_FIELD_INTERLACED_BT = 9, /* both fields interlaced, top field - first and the bottom field is - transmitted first */ -}; -#define V4L2_FIELD_HAS_TOP(field) \ - ((field) == V4L2_FIELD_TOP ||\ - (field) == V4L2_FIELD_INTERLACED ||\ - (field) == V4L2_FIELD_INTERLACED_TB ||\ - (field) == V4L2_FIELD_INTERLACED_BT ||\ - (field) == V4L2_FIELD_SEQ_TB ||\ - (field) == V4L2_FIELD_SEQ_BT) -#define V4L2_FIELD_HAS_BOTTOM(field) \ - ((field) == V4L2_FIELD_BOTTOM ||\ - (field) == V4L2_FIELD_INTERLACED ||\ - (field) == V4L2_FIELD_INTERLACED_TB ||\ - (field) == V4L2_FIELD_INTERLACED_BT ||\ - (field) == V4L2_FIELD_SEQ_TB ||\ - (field) == V4L2_FIELD_SEQ_BT) -#define V4L2_FIELD_HAS_BOTH(field) \ - ((field) == V4L2_FIELD_INTERLACED ||\ - (field) == V4L2_FIELD_INTERLACED_TB ||\ - (field) == V4L2_FIELD_INTERLACED_BT ||\ - (field) == V4L2_FIELD_SEQ_TB ||\ - (field) == V4L2_FIELD_SEQ_BT) - -enum <link linkend="v4l2-buf-type">v4l2_buf_type</link> { - V4L2_BUF_TYPE_VIDEO_CAPTURE = 1, - V4L2_BUF_TYPE_VIDEO_OUTPUT = 2, - V4L2_BUF_TYPE_VIDEO_OVERLAY = 3, - V4L2_BUF_TYPE_VBI_CAPTURE = 4, - V4L2_BUF_TYPE_VBI_OUTPUT = 5, - V4L2_BUF_TYPE_SLICED_VBI_CAPTURE = 6, - V4L2_BUF_TYPE_SLICED_VBI_OUTPUT = 7, -#if 1 - /* Experimental */ - V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY = 8, -#endif - V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE = 9, - V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE = 10, - V4L2_BUF_TYPE_PRIVATE = 0x80, -}; - -#define V4L2_TYPE_IS_MULTIPLANAR(type) \ - ((type) == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE \ - || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) - -#define V4L2_TYPE_IS_OUTPUT(type) \ - ((type) == V4L2_BUF_TYPE_VIDEO_OUTPUT \ - || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE \ - || (type) == V4L2_BUF_TYPE_VIDEO_OVERLAY \ - || (type) == V4L2_BUF_TYPE_VIDEO_OUTPUT_OVERLAY \ - || (type) == V4L2_BUF_TYPE_VBI_OUTPUT \ - || (type) == V4L2_BUF_TYPE_SLICED_VBI_OUTPUT) - -enum <link linkend="v4l2-tuner-type">v4l2_tuner_type</link> { - V4L2_TUNER_RADIO = 1, - V4L2_TUNER_ANALOG_TV = 2, - V4L2_TUNER_DIGITAL_TV = 3, -}; - -enum <link linkend="v4l2-memory">v4l2_memory</link> { - V4L2_MEMORY_MMAP = 1, - V4L2_MEMORY_USERPTR = 2, - V4L2_MEMORY_OVERLAY = 3, -}; - -/* see also http://vektor.theorem.ca/graphics/ycbcr/ */ -enum <link linkend="v4l2-colorspace">v4l2_colorspace</link> { - /* ITU-R 601 -- broadcast NTSC/PAL */ - V4L2_COLORSPACE_SMPTE170M = 1, - - /* 1125-Line (US) HDTV */ - V4L2_COLORSPACE_SMPTE240M = 2, - - /* HD and modern captures. */ - V4L2_COLORSPACE_REC709 = 3, - - /* broken BT878 extents (601, luma range 16-253 instead of 16-235) */ - V4L2_COLORSPACE_BT878 = 4, - - /* These should be useful. Assume 601 extents. */ - V4L2_COLORSPACE_470_SYSTEM_M = 5, - V4L2_COLORSPACE_470_SYSTEM_BG = 6, - - /* I know there will be cameras that send this. So, this is - * unspecified chromaticities and full 0-255 on each of the - * Y'CbCr components - */ - V4L2_COLORSPACE_JPEG = 7, - - /* For RGB colourspaces, this is probably a good start. */ - V4L2_COLORSPACE_SRGB = 8, -}; - -enum <link linkend="v4l2-priority">v4l2_priority</link> { - V4L2_PRIORITY_UNSET = 0, /* not initialized */ - V4L2_PRIORITY_BACKGROUND = 1, - V4L2_PRIORITY_INTERACTIVE = 2, - V4L2_PRIORITY_RECORD = 3, - V4L2_PRIORITY_DEFAULT = V4L2_PRIORITY_INTERACTIVE, -}; - -struct <link linkend="v4l2-rect">v4l2_rect</link> { - __s32 left; - __s32 top; - __s32 width; - __s32 height; -}; - -struct <link linkend="v4l2-fract">v4l2_fract</link> { - __u32 numerator; - __u32 denominator; -}; - -/* - * D R I V E R C A P A B I L I T I E S - */ -struct <link linkend="v4l2-capability">v4l2_capability</link> { - __u8 driver[16]; /* i.e.ie; "bttv" */ - __u8 card[32]; /* i.e.ie; "Hauppauge WinTV" */ - __u8 bus_info[32]; /* "PCI:" + pci_name(pci_dev) */ - __u32 version; /* should use KERNEL_VERSION() */ - __u32 capabilities; /* Device capabilities */ - __u32 reserved[4]; -}; - -/* Values for 'capabilities' field */ -#define V4L2_CAP_VIDEO_CAPTURE 0x00000001 /* Is a video capture device */ -#define V4L2_CAP_VIDEO_OUTPUT 0x00000002 /* Is a video output device */ -#define V4L2_CAP_VIDEO_OVERLAY 0x00000004 /* Can do video overlay */ -#define V4L2_CAP_VBI_CAPTURE 0x00000010 /* Is a raw VBI capture device */ -#define V4L2_CAP_VBI_OUTPUT 0x00000020 /* Is a raw VBI output device */ -#define V4L2_CAP_SLICED_VBI_CAPTURE 0x00000040 /* Is a sliced VBI capture device */ -#define V4L2_CAP_SLICED_VBI_OUTPUT 0x00000080 /* Is a sliced VBI output device */ -#define V4L2_CAP_RDS_CAPTURE 0x00000100 /* RDS data capture */ -#define V4L2_CAP_VIDEO_OUTPUT_OVERLAY 0x00000200 /* Can do video output overlay */ -#define V4L2_CAP_HW_FREQ_SEEK 0x00000400 /* Can do hardware frequency seek */ -#define V4L2_CAP_RDS_OUTPUT 0x00000800 /* Is an RDS encoder */ - -/* Is a video capture device that supports multiplanar formats */ -#define V4L2_CAP_VIDEO_CAPTURE_MPLANE 0x00001000 -/* Is a video output device that supports multiplanar formats */ -#define V4L2_CAP_VIDEO_OUTPUT_MPLANE 0x00002000 - -#define V4L2_CAP_TUNER 0x00010000 /* has a tuner */ -#define V4L2_CAP_AUDIO 0x00020000 /* has audio support */ -#define V4L2_CAP_RADIO 0x00040000 /* is a radio device */ -#define V4L2_CAP_MODULATOR 0x00080000 /* has a modulator */ - -#define V4L2_CAP_READWRITE 0x01000000 /* read/write systemcalls */ -#define V4L2_CAP_ASYNCIO 0x02000000 /* async I/O */ -#define V4L2_CAP_STREAMING 0x04000000 /* streaming I/O ioctls */ - -/* - * V I D E O I M A G E F O R M A T - */ -struct <link linkend="v4l2-pix-format">v4l2_pix_format</link> { - __u32 width; - __u32 height; - __u32 pixelformat; - enum <link linkend="v4l2-field">v4l2_field</link> field; - __u32 bytesperline; /* for padding, zero if unused */ - __u32 sizeimage; - enum <link linkend="v4l2-colorspace">v4l2_colorspace</link> colorspace; - __u32 priv; /* private data, depends on pixelformat */ -}; - -/* Pixel format FOURCC depth Description */ - -/* RGB formats */ -#define <link linkend="V4L2-PIX-FMT-RGB332">V4L2_PIX_FMT_RGB332</link> v4l2_fourcc('R', 'G', 'B', '1') /* 8 RGB-3-3-2 */ -#define <link linkend="V4L2-PIX-FMT-RGB444">V4L2_PIX_FMT_RGB444</link> v4l2_fourcc('R', '4', '4', '4') /* 16 xxxxrrrr ggggbbbb */ -#define <link linkend="V4L2-PIX-FMT-RGB555">V4L2_PIX_FMT_RGB555</link> v4l2_fourcc('R', 'G', 'B', 'O') /* 16 RGB-5-5-5 */ -#define <link linkend="V4L2-PIX-FMT-RGB565">V4L2_PIX_FMT_RGB565</link> v4l2_fourcc('R', 'G', 'B', 'P') /* 16 RGB-5-6-5 */ -#define <link linkend="V4L2-PIX-FMT-RGB555X">V4L2_PIX_FMT_RGB555X</link> v4l2_fourcc('R', 'G', 'B', 'Q') /* 16 RGB-5-5-5 BE */ -#define <link linkend="V4L2-PIX-FMT-RGB565X">V4L2_PIX_FMT_RGB565X</link> v4l2_fourcc('R', 'G', 'B', 'R') /* 16 RGB-5-6-5 BE */ -#define <link linkend="V4L2-PIX-FMT-BGR666">V4L2_PIX_FMT_BGR666</link> v4l2_fourcc('B', 'G', 'R', 'H') /* 18 BGR-6-6-6 */ -#define <link linkend="V4L2-PIX-FMT-BGR24">V4L2_PIX_FMT_BGR24</link> v4l2_fourcc('B', 'G', 'R', '3') /* 24 BGR-8-8-8 */ -#define <link linkend="V4L2-PIX-FMT-RGB24">V4L2_PIX_FMT_RGB24</link> v4l2_fourcc('R', 'G', 'B', '3') /* 24 RGB-8-8-8 */ -#define <link linkend="V4L2-PIX-FMT-BGR32">V4L2_PIX_FMT_BGR32</link> v4l2_fourcc('B', 'G', 'R', '4') /* 32 BGR-8-8-8-8 */ -#define <link linkend="V4L2-PIX-FMT-RGB32">V4L2_PIX_FMT_RGB32</link> v4l2_fourcc('R', 'G', 'B', '4') /* 32 RGB-8-8-8-8 */ - -/* Grey formats */ -#define <link linkend="V4L2-PIX-FMT-GREY">V4L2_PIX_FMT_GREY</link> v4l2_fourcc('G', 'R', 'E', 'Y') /* 8 Greyscale */ -#define <link linkend="V4L2-PIX-FMT-Y4">V4L2_PIX_FMT_Y4</link> v4l2_fourcc('Y', '0', '4', ' ') /* 4 Greyscale */ -#define <link linkend="V4L2-PIX-FMT-Y6">V4L2_PIX_FMT_Y6</link> v4l2_fourcc('Y', '0', '6', ' ') /* 6 Greyscale */ -#define <link linkend="V4L2-PIX-FMT-Y10">V4L2_PIX_FMT_Y10</link> v4l2_fourcc('Y', '1', '0', ' ') /* 10 Greyscale */ -#define <link linkend="V4L2-PIX-FMT-Y16">V4L2_PIX_FMT_Y16</link> v4l2_fourcc('Y', '1', '6', ' ') /* 16 Greyscale */ - -/* Grey bit-packed formats */ -#define <link linkend="V4L2-PIX-FMT-Y10BPACK">V4L2_PIX_FMT_Y10BPACK</link> v4l2_fourcc('Y', '1', '0', 'B') /* 10 Greyscale bit-packed */ - -/* Palette formats */ -#define <link linkend="V4L2-PIX-FMT-PAL8">V4L2_PIX_FMT_PAL8</link> v4l2_fourcc('P', 'A', 'L', '8') /* 8 8-bit palette */ - -/* Luminance+Chrominance formats */ -#define <link linkend="V4L2-PIX-FMT-YVU410">V4L2_PIX_FMT_YVU410</link> v4l2_fourcc('Y', 'V', 'U', '9') /* 9 YVU 4:1:0 */ -#define <link linkend="V4L2-PIX-FMT-YVU420">V4L2_PIX_FMT_YVU420</link> v4l2_fourcc('Y', 'V', '1', '2') /* 12 YVU 4:2:0 */ -#define <link linkend="V4L2-PIX-FMT-YUYV">V4L2_PIX_FMT_YUYV</link> v4l2_fourcc('Y', 'U', 'Y', 'V') /* 16 YUV 4:2:2 */ -#define <link linkend="V4L2-PIX-FMT-YYUV">V4L2_PIX_FMT_YYUV</link> v4l2_fourcc('Y', 'Y', 'U', 'V') /* 16 YUV 4:2:2 */ -#define <link linkend="V4L2-PIX-FMT-YVYU">V4L2_PIX_FMT_YVYU</link> v4l2_fourcc('Y', 'V', 'Y', 'U') /* 16 YVU 4:2:2 */ -#define <link linkend="V4L2-PIX-FMT-UYVY">V4L2_PIX_FMT_UYVY</link> v4l2_fourcc('U', 'Y', 'V', 'Y') /* 16 YUV 4:2:2 */ -#define <link linkend="V4L2-PIX-FMT-VYUY">V4L2_PIX_FMT_VYUY</link> v4l2_fourcc('V', 'Y', 'U', 'Y') /* 16 YUV 4:2:2 */ -#define <link linkend="V4L2-PIX-FMT-YUV422P">V4L2_PIX_FMT_YUV422P</link> v4l2_fourcc('4', '2', '2', 'P') /* 16 YVU422 planar */ -#define <link linkend="V4L2-PIX-FMT-YUV411P">V4L2_PIX_FMT_YUV411P</link> v4l2_fourcc('4', '1', '1', 'P') /* 16 YVU411 planar */ -#define <link linkend="V4L2-PIX-FMT-Y41P">V4L2_PIX_FMT_Y41P</link> v4l2_fourcc('Y', '4', '1', 'P') /* 12 YUV 4:1:1 */ -#define <link linkend="V4L2-PIX-FMT-YUV444">V4L2_PIX_FMT_YUV444</link> v4l2_fourcc('Y', '4', '4', '4') /* 16 xxxxyyyy uuuuvvvv */ -#define <link linkend="V4L2-PIX-FMT-YUV555">V4L2_PIX_FMT_YUV555</link> v4l2_fourcc('Y', 'U', 'V', 'O') /* 16 YUV-5-5-5 */ -#define <link linkend="V4L2-PIX-FMT-YUV565">V4L2_PIX_FMT_YUV565</link> v4l2_fourcc('Y', 'U', 'V', 'P') /* 16 YUV-5-6-5 */ -#define <link linkend="V4L2-PIX-FMT-YUV32">V4L2_PIX_FMT_YUV32</link> v4l2_fourcc('Y', 'U', 'V', '4') /* 32 YUV-8-8-8-8 */ -#define <link linkend="V4L2-PIX-FMT-YUV410">V4L2_PIX_FMT_YUV410</link> v4l2_fourcc('Y', 'U', 'V', '9') /* 9 YUV 4:1:0 */ -#define <link linkend="V4L2-PIX-FMT-YUV420">V4L2_PIX_FMT_YUV420</link> v4l2_fourcc('Y', 'U', '1', '2') /* 12 YUV 4:2:0 */ -#define <link linkend="V4L2-PIX-FMT-HI240">V4L2_PIX_FMT_HI240</link> v4l2_fourcc('H', 'I', '2', '4') /* 8 8-bit color */ -#define <link linkend="V4L2-PIX-FMT-HM12">V4L2_PIX_FMT_HM12</link> v4l2_fourcc('H', 'M', '1', '2') /* 8 YUV 4:2:0 16x16 macroblocks */ -#define <link linkend="V4L2-PIX-FMT-M420">V4L2_PIX_FMT_M420</link> v4l2_fourcc('M', '4', '2', '0') /* 12 YUV 4:2:0 2 lines y, 1 line uv interleaved */ - -/* two planes -- one Y, one Cr + Cb interleaved */ -#define <link linkend="V4L2-PIX-FMT-NV12">V4L2_PIX_FMT_NV12</link> v4l2_fourcc('N', 'V', '1', '2') /* 12 Y/CbCr 4:2:0 */ -#define <link linkend="V4L2-PIX-FMT-NV21">V4L2_PIX_FMT_NV21</link> v4l2_fourcc('N', 'V', '2', '1') /* 12 Y/CrCb 4:2:0 */ -#define <link linkend="V4L2-PIX-FMT-NV16">V4L2_PIX_FMT_NV16</link> v4l2_fourcc('N', 'V', '1', '6') /* 16 Y/CbCr 4:2:2 */ -#define <link linkend="V4L2-PIX-FMT-NV61">V4L2_PIX_FMT_NV61</link> v4l2_fourcc('N', 'V', '6', '1') /* 16 Y/CrCb 4:2:2 */ - -/* two non contiguous planes - one Y, one Cr + Cb interleaved */ -#define <link linkend="V4L2-PIX-FMT-NV12M">V4L2_PIX_FMT_NV12M</link> v4l2_fourcc('N', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 */ -#define <link linkend="V4L2-PIX-FMT-NV12MT">V4L2_PIX_FMT_NV12MT</link> v4l2_fourcc('T', 'M', '1', '2') /* 12 Y/CbCr 4:2:0 64x32 macroblocks */ - -/* three non contiguous planes - Y, Cb, Cr */ -#define <link linkend="V4L2-PIX-FMT-YUV420M">V4L2_PIX_FMT_YUV420M</link> v4l2_fourcc('Y', 'M', '1', '2') /* 12 YUV420 planar */ - -/* Bayer formats - see http://www.siliconimaging.com/RGB%20Bayer.htm */ -#define <link linkend="V4L2-PIX-FMT-SBGGR8">V4L2_PIX_FMT_SBGGR8</link> v4l2_fourcc('B', 'A', '8', '1') /* 8 BGBG.. GRGR.. */ -#define <link linkend="V4L2-PIX-FMT-SGBRG8">V4L2_PIX_FMT_SGBRG8</link> v4l2_fourcc('G', 'B', 'R', 'G') /* 8 GBGB.. RGRG.. */ -#define <link linkend="V4L2-PIX-FMT-SGRBG8">V4L2_PIX_FMT_SGRBG8</link> v4l2_fourcc('G', 'R', 'B', 'G') /* 8 GRGR.. BGBG.. */ -#define <link linkend="V4L2-PIX-FMT-SRGGB8">V4L2_PIX_FMT_SRGGB8</link> v4l2_fourcc('R', 'G', 'G', 'B') /* 8 RGRG.. GBGB.. */ -#define <link linkend="V4L2-PIX-FMT-SBGGR10">V4L2_PIX_FMT_SBGGR10</link> v4l2_fourcc('B', 'G', '1', '0') /* 10 BGBG.. GRGR.. */ -#define <link linkend="V4L2-PIX-FMT-SGBRG10">V4L2_PIX_FMT_SGBRG10</link> v4l2_fourcc('G', 'B', '1', '0') /* 10 GBGB.. RGRG.. */ -#define <link linkend="V4L2-PIX-FMT-SGRBG10">V4L2_PIX_FMT_SGRBG10</link> v4l2_fourcc('B', 'A', '1', '0') /* 10 GRGR.. BGBG.. */ -#define <link linkend="V4L2-PIX-FMT-SRGGB10">V4L2_PIX_FMT_SRGGB10</link> v4l2_fourcc('R', 'G', '1', '0') /* 10 RGRG.. GBGB.. */ - /* 10bit raw bayer DPCM compressed to 8 bits */ -#define <link linkend="V4L2-PIX-FMT-SGRBG10DPCM8">V4L2_PIX_FMT_SGRBG10DPCM8</link> v4l2_fourcc('B', 'D', '1', '0') - /* - * 10bit raw bayer, expanded to 16 bits - * xxxxrrrrrrrrrrxxxxgggggggggg xxxxggggggggggxxxxbbbbbbbbbb... - */ -#define <link linkend="V4L2-PIX-FMT-SBGGR16">V4L2_PIX_FMT_SBGGR16</link> v4l2_fourcc('B', 'Y', 'R', '2') /* 16 BGBG.. GRGR.. */ - -/* compressed formats */ -#define <link linkend="V4L2-PIX-FMT-MJPEG">V4L2_PIX_FMT_MJPEG</link> v4l2_fourcc('M', 'J', 'P', 'G') /* Motion-JPEG */ -#define <link linkend="V4L2-PIX-FMT-JPEG">V4L2_PIX_FMT_JPEG</link> v4l2_fourcc('J', 'P', 'E', 'G') /* JFIF JPEG */ -#define <link linkend="V4L2-PIX-FMT-DV">V4L2_PIX_FMT_DV</link> v4l2_fourcc('d', 'v', 's', 'd') /* 1394 */ -#define <link linkend="V4L2-PIX-FMT-MPEG">V4L2_PIX_FMT_MPEG</link> v4l2_fourcc('M', 'P', 'E', 'G') /* MPEG-1/2/4 */ - -/* Vendor-specific formats */ -#define <link linkend="V4L2-PIX-FMT-CPIA1">V4L2_PIX_FMT_CPIA1</link> v4l2_fourcc('C', 'P', 'I', 'A') /* cpia1 YUV */ -#define <link linkend="V4L2-PIX-FMT-WNVA">V4L2_PIX_FMT_WNVA</link> v4l2_fourcc('W', 'N', 'V', 'A') /* Winnov hw compress */ -#define <link linkend="V4L2-PIX-FMT-SN9C10X">V4L2_PIX_FMT_SN9C10X</link> v4l2_fourcc('S', '9', '1', '0') /* SN9C10x compression */ -#define <link linkend="V4L2-PIX-FMT-SN9C20X-I420">V4L2_PIX_FMT_SN9C20X_I420</link> v4l2_fourcc('S', '9', '2', '0') /* SN9C20x YUV 4:2:0 */ -#define <link linkend="V4L2-PIX-FMT-PWC1">V4L2_PIX_FMT_PWC1</link> v4l2_fourcc('P', 'W', 'C', '1') /* pwc older webcam */ -#define <link linkend="V4L2-PIX-FMT-PWC2">V4L2_PIX_FMT_PWC2</link> v4l2_fourcc('P', 'W', 'C', '2') /* pwc newer webcam */ -#define <link linkend="V4L2-PIX-FMT-ET61X251">V4L2_PIX_FMT_ET61X251</link> v4l2_fourcc('E', '6', '2', '5') /* ET61X251 compression */ -#define <link linkend="V4L2-PIX-FMT-SPCA501">V4L2_PIX_FMT_SPCA501</link> v4l2_fourcc('S', '5', '0', '1') /* YUYV per line */ -#define <link linkend="V4L2-PIX-FMT-SPCA505">V4L2_PIX_FMT_SPCA505</link> v4l2_fourcc('S', '5', '0', '5') /* YYUV per line */ -#define <link linkend="V4L2-PIX-FMT-SPCA508">V4L2_PIX_FMT_SPCA508</link> v4l2_fourcc('S', '5', '0', '8') /* YUVY per line */ -#define <link linkend="V4L2-PIX-FMT-SPCA561">V4L2_PIX_FMT_SPCA561</link> v4l2_fourcc('S', '5', '6', '1') /* compressed GBRG bayer */ -#define <link linkend="V4L2-PIX-FMT-PAC207">V4L2_PIX_FMT_PAC207</link> v4l2_fourcc('P', '2', '0', '7') /* compressed BGGR bayer */ -#define <link linkend="V4L2-PIX-FMT-MR97310A">V4L2_PIX_FMT_MR97310A</link> v4l2_fourcc('M', '3', '1', '0') /* compressed BGGR bayer */ -#define <link linkend="V4L2-PIX-FMT-SN9C2028">V4L2_PIX_FMT_SN9C2028</link> v4l2_fourcc('S', 'O', 'N', 'X') /* compressed GBRG bayer */ -#define <link linkend="V4L2-PIX-FMT-SQ905C">V4L2_PIX_FMT_SQ905C</link> v4l2_fourcc('9', '0', '5', 'C') /* compressed RGGB bayer */ -#define <link linkend="V4L2-PIX-FMT-PJPG">V4L2_PIX_FMT_PJPG</link> v4l2_fourcc('P', 'J', 'P', 'G') /* Pixart 73xx JPEG */ -#define <link linkend="V4L2-PIX-FMT-OV511">V4L2_PIX_FMT_OV511</link> v4l2_fourcc('O', '5', '1', '1') /* ov511 JPEG */ -#define <link linkend="V4L2-PIX-FMT-OV518">V4L2_PIX_FMT_OV518</link> v4l2_fourcc('O', '5', '1', '8') /* ov518 JPEG */ -#define <link linkend="V4L2-PIX-FMT-STV0680">V4L2_PIX_FMT_STV0680</link> v4l2_fourcc('S', '6', '8', '0') /* stv0680 bayer */ -#define <link linkend="V4L2-PIX-FMT-TM6000">V4L2_PIX_FMT_TM6000</link> v4l2_fourcc('T', 'M', '6', '0') /* tm5600/tm60x0 */ -#define <link linkend="V4L2-PIX-FMT-CIT-YYVYUY">V4L2_PIX_FMT_CIT_YYVYUY</link> v4l2_fourcc('C', 'I', 'T', 'V') /* one line of Y then 1 line of VYUY */ -#define <link linkend="V4L2-PIX-FMT-KONICA420">V4L2_PIX_FMT_KONICA420</link> v4l2_fourcc('K', 'O', 'N', 'I') /* YUV420 planar in blocks of 256 pixels */ - -/* - * F O R M A T E N U M E R A T I O N - */ -struct <link linkend="v4l2-fmtdesc">v4l2_fmtdesc</link> { - __u32 index; /* Format number */ - enum <link linkend="v4l2-buf-type">v4l2_buf_type</link> type; /* buffer type */ - __u32 flags; - __u8 description[32]; /* Description string */ - __u32 pixelformat; /* Format fourcc */ - __u32 reserved[4]; -}; - -#define V4L2_FMT_FLAG_COMPRESSED 0x0001 -#define V4L2_FMT_FLAG_EMULATED 0x0002 - -#if 1 - /* Experimental Frame Size and frame rate enumeration */ -/* - * F R A M E S I Z E E N U M E R A T I O N - */ -enum <link linkend="v4l2-frmsizetypes">v4l2_frmsizetypes</link> { - V4L2_FRMSIZE_TYPE_DISCRETE = 1, - V4L2_FRMSIZE_TYPE_CONTINUOUS = 2, - V4L2_FRMSIZE_TYPE_STEPWISE = 3, -}; - -struct <link linkend="v4l2-frmsize-discrete">v4l2_frmsize_discrete</link> { - __u32 width; /* Frame width [pixel] */ - __u32 height; /* Frame height [pixel] */ -}; - -struct <link linkend="v4l2-frmsize-stepwise">v4l2_frmsize_stepwise</link> { - __u32 min_width; /* Minimum frame width [pixel] */ - __u32 max_width; /* Maximum frame width [pixel] */ - __u32 step_width; /* Frame width step size [pixel] */ - __u32 min_height; /* Minimum frame height [pixel] */ - __u32 max_height; /* Maximum frame height [pixel] */ - __u32 step_height; /* Frame height step size [pixel] */ -}; - -struct <link linkend="v4l2-frmsizeenum">v4l2_frmsizeenum</link> { - __u32 index; /* Frame size number */ - __u32 pixel_format; /* Pixel format */ - __u32 type; /* Frame size type the device supports. */ - - union { /* Frame size */ - struct <link linkend="v4l2-frmsize-discrete">v4l2_frmsize_discrete</link> discrete; - struct <link linkend="v4l2-frmsize-stepwise">v4l2_frmsize_stepwise</link> stepwise; - }; - - __u32 reserved[2]; /* Reserved space for future use */ -}; - -/* - * F R A M E R A T E E N U M E R A T I O N - */ -enum <link linkend="v4l2-frmivaltypes">v4l2_frmivaltypes</link> { - V4L2_FRMIVAL_TYPE_DISCRETE = 1, - V4L2_FRMIVAL_TYPE_CONTINUOUS = 2, - V4L2_FRMIVAL_TYPE_STEPWISE = 3, -}; - -struct <link linkend="v4l2-frmival-stepwise">v4l2_frmival_stepwise</link> { - struct <link linkend="v4l2-fract">v4l2_fract</link> min; /* Minimum frame interval [s] */ - struct <link linkend="v4l2-fract">v4l2_fract</link> max; /* Maximum frame interval [s] */ - struct <link linkend="v4l2-fract">v4l2_fract</link> step; /* Frame interval step size [s] */ -}; - -struct <link linkend="v4l2-frmivalenum">v4l2_frmivalenum</link> { - __u32 index; /* Frame format index */ - __u32 pixel_format; /* Pixel format */ - __u32 width; /* Frame width */ - __u32 height; /* Frame height */ - __u32 type; /* Frame interval type the device supports. */ - - union { /* Frame interval */ - struct <link linkend="v4l2-fract">v4l2_fract</link> discrete; - struct <link linkend="v4l2-frmival-stepwise">v4l2_frmival_stepwise</link> stepwise; - }; - - __u32 reserved[2]; /* Reserved space for future use */ -}; -#endif - -/* - * T I M E C O D E - */ -struct <link linkend="v4l2-timecode">v4l2_timecode</link> { - __u32 type; - __u32 flags; - __u8 frames; - __u8 seconds; - __u8 minutes; - __u8 hours; - __u8 userbits[4]; -}; - -/* Type */ -#define V4L2_TC_TYPE_24FPS 1 -#define V4L2_TC_TYPE_25FPS 2 -#define V4L2_TC_TYPE_30FPS 3 -#define V4L2_TC_TYPE_50FPS 4 -#define V4L2_TC_TYPE_60FPS 5 - -/* Flags */ -#define V4L2_TC_FLAG_DROPFRAME 0x0001 /* "drop-frame" mode */ -#define V4L2_TC_FLAG_COLORFRAME 0x0002 -#define V4L2_TC_USERBITS_field 0x000C -#define V4L2_TC_USERBITS_USERDEFINED 0x0000 -#define V4L2_TC_USERBITS_8BITCHARS 0x0008 -/* The above is based on SMPTE timecodes */ - -struct <link linkend="v4l2-jpegcompression">v4l2_jpegcompression</link> { - int quality; - - int APPn; /* Number of APP segment to be written, - * must be 0..15 */ - int APP_len; /* Length of data in JPEG APPn segment */ - char APP_data[60]; /* Data in the JPEG APPn segment. */ - - int COM_len; /* Length of data in JPEG COM segment */ - char COM_data[60]; /* Data in JPEG COM segment */ - - __u32 jpeg_markers; /* Which markers should go into the JPEG - * output. Unless you exactly know what - * you do, leave them untouched. - * Inluding less markers will make the - * resulting code smaller, but there will - * be fewer applications which can read it. - * The presence of the APP and COM marker - * is influenced by APP_len and COM_len - * ONLY, not by this property! */ - -#define V4L2_JPEG_MARKER_DHT (1<<3) /* Define Huffman Tables */ -#define V4L2_JPEG_MARKER_DQT (1<<4) /* Define Quantization Tables */ -#define V4L2_JPEG_MARKER_DRI (1<<5) /* Define Restart Interval */ -#define V4L2_JPEG_MARKER_COM (1<<6) /* Comment segment */ -#define V4L2_JPEG_MARKER_APP (1<<7) /* App segment, driver will - * allways use APP0 */ -}; - -/* - * M E M O R Y - M A P P I N G B U F F E R S - */ -struct <link linkend="v4l2-requestbuffers">v4l2_requestbuffers</link> { - __u32 count; - enum <link linkend="v4l2-buf-type">v4l2_buf_type</link> type; - enum <link linkend="v4l2-memory">v4l2_memory</link> memory; - __u32 reserved[2]; -}; - -/** - * struct <link linkend="v4l2-plane">v4l2_plane</link> - plane info for multi-planar buffers - * @bytesused: number of bytes occupied by data in the plane (payload) - * @length: size of this plane (NOT the payload) in bytes - * @mem_offset: when memory in the associated struct <link linkend="v4l2-buffer">v4l2_buffer</link> is - * V4L2_MEMORY_MMAP, equals the offset from the start of - * the device memory for this plane (or is a "cookie" that - * should be passed to mmap() called on the video node) - * @userptr: when memory is V4L2_MEMORY_USERPTR, a userspace pointer - * pointing to this plane - * @data_offset: offset in the plane to the start of data; usually 0, - * unless there is a header in front of the data - * - * Multi-planar buffers consist of one or more planes, e.g. an YCbCr buffer - * with two planes can have one plane for Y, and another for interleaved CbCr - * components. Each plane can reside in a separate memory buffer, or even in - * a completely separate memory node (e.g. in embedded devices). - */ -struct <link linkend="v4l2-plane">v4l2_plane</link> { - __u32 bytesused; - __u32 length; - union { - __u32 mem_offset; - unsigned long userptr; - } m; - __u32 data_offset; - __u32 reserved[11]; -}; - -/** - * struct <link linkend="v4l2-buffer">v4l2_buffer</link> - video buffer info - * @index: id number of the buffer - * @type: buffer type (type == *_MPLANE for multiplanar buffers) - * @bytesused: number of bytes occupied by data in the buffer (payload); - * unused (set to 0) for multiplanar buffers - * @flags: buffer informational flags - * @field: field order of the image in the buffer - * @timestamp: frame timestamp - * @timecode: frame timecode - * @sequence: sequence count of this frame - * @memory: the method, in which the actual video data is passed - * @offset: for non-multiplanar buffers with memory == V4L2_MEMORY_MMAP; - * offset from the start of the device memory for this plane, - * (or a "cookie" that should be passed to mmap() as offset) - * @userptr: for non-multiplanar buffers with memory == V4L2_MEMORY_USERPTR; - * a userspace pointer pointing to this buffer - * @planes: for multiplanar buffers; userspace pointer to the array of plane - * info structs for this buffer - * @length: size in bytes of the buffer (NOT its payload) for single-plane - * buffers (when type != *_MPLANE); number of elements in the - * planes array for multi-plane buffers - * @input: input number from which the video data has has been captured - * - * Contains data exchanged by application and driver using one of the Streaming - * I/O methods. - */ -struct <link linkend="v4l2-buffer">v4l2_buffer</link> { - __u32 index; - enum <link linkend="v4l2-buf-type">v4l2_buf_type</link> type; - __u32 bytesused; - __u32 flags; - enum <link linkend="v4l2-field">v4l2_field</link> field; - struct timeval timestamp; - struct <link linkend="v4l2-timecode">v4l2_timecode</link> timecode; - __u32 sequence; - - /* memory location */ - enum <link linkend="v4l2-memory">v4l2_memory</link> memory; - union { - __u32 offset; - unsigned long userptr; - struct <link linkend="v4l2-plane">v4l2_plane</link> *planes; - } m; - __u32 length; - __u32 input; - __u32 reserved; -}; - -/* Flags for 'flags' field */ -#define V4L2_BUF_FLAG_MAPPED 0x0001 /* Buffer is mapped (flag) */ -#define V4L2_BUF_FLAG_QUEUED 0x0002 /* Buffer is queued for processing */ -#define V4L2_BUF_FLAG_DONE 0x0004 /* Buffer is ready */ -#define V4L2_BUF_FLAG_KEYFRAME 0x0008 /* Image is a keyframe (I-frame) */ -#define V4L2_BUF_FLAG_PFRAME 0x0010 /* Image is a P-frame */ -#define V4L2_BUF_FLAG_BFRAME 0x0020 /* Image is a B-frame */ -/* Buffer is ready, but the data contained within is corrupted. */ -#define V4L2_BUF_FLAG_ERROR 0x0040 -#define V4L2_BUF_FLAG_TIMECODE 0x0100 /* timecode field is valid */ -#define V4L2_BUF_FLAG_INPUT 0x0200 /* input field is valid */ - -/* - * O V E R L A Y P R E V I E W - */ -struct <link linkend="v4l2-framebuffer">v4l2_framebuffer</link> { - __u32 capability; - __u32 flags; -/* FIXME: in theory we should pass something like PCI device + memory - * region + offset instead of some physical address */ - void *base; - struct <link linkend="v4l2-pix-format">v4l2_pix_format</link> fmt; -}; -/* Flags for the 'capability' field. Read only */ -#define V4L2_FBUF_CAP_EXTERNOVERLAY 0x0001 -#define V4L2_FBUF_CAP_CHROMAKEY 0x0002 -#define V4L2_FBUF_CAP_LIST_CLIPPING 0x0004 -#define V4L2_FBUF_CAP_BITMAP_CLIPPING 0x0008 -#define V4L2_FBUF_CAP_LOCAL_ALPHA 0x0010 -#define V4L2_FBUF_CAP_GLOBAL_ALPHA 0x0020 -#define V4L2_FBUF_CAP_LOCAL_INV_ALPHA 0x0040 -#define V4L2_FBUF_CAP_SRC_CHROMAKEY 0x0080 -/* Flags for the 'flags' field. */ -#define V4L2_FBUF_FLAG_PRIMARY 0x0001 -#define V4L2_FBUF_FLAG_OVERLAY 0x0002 -#define V4L2_FBUF_FLAG_CHROMAKEY 0x0004 -#define V4L2_FBUF_FLAG_LOCAL_ALPHA 0x0008 -#define V4L2_FBUF_FLAG_GLOBAL_ALPHA 0x0010 -#define V4L2_FBUF_FLAG_LOCAL_INV_ALPHA 0x0020 -#define V4L2_FBUF_FLAG_SRC_CHROMAKEY 0x0040 - -struct <link linkend="v4l2-clip">v4l2_clip</link> { - struct <link linkend="v4l2-rect">v4l2_rect</link> c; - struct <link linkend="v4l2-clip">v4l2_clip</link> __user *next; -}; - -struct <link linkend="v4l2-window">v4l2_window</link> { - struct <link linkend="v4l2-rect">v4l2_rect</link> w; - enum <link linkend="v4l2-field">v4l2_field</link> field; - __u32 chromakey; - struct <link linkend="v4l2-clip">v4l2_clip</link> __user *clips; - __u32 clipcount; - void __user *bitmap; - __u8 global_alpha; -}; - -/* - * C A P T U R E P A R A M E T E R S - */ -struct <link linkend="v4l2-captureparm">v4l2_captureparm</link> { - __u32 capability; /* Supported modes */ - __u32 capturemode; /* Current mode */ - struct <link linkend="v4l2-fract">v4l2_fract</link> timeperframe; /* Time per frame in .1us units */ - __u32 extendedmode; /* Driver-specific extensions */ - __u32 readbuffers; /* # of buffers for read */ - __u32 reserved[4]; -}; - -/* Flags for 'capability' and 'capturemode' fields */ -#define V4L2_MODE_HIGHQUALITY 0x0001 /* High quality imaging mode */ -#define V4L2_CAP_TIMEPERFRAME 0x1000 /* timeperframe field is supported */ - -struct <link linkend="v4l2-outputparm">v4l2_outputparm</link> { - __u32 capability; /* Supported modes */ - __u32 outputmode; /* Current mode */ - struct <link linkend="v4l2-fract">v4l2_fract</link> timeperframe; /* Time per frame in seconds */ - __u32 extendedmode; /* Driver-specific extensions */ - __u32 writebuffers; /* # of buffers for write */ - __u32 reserved[4]; -}; - -/* - * I N P U T I M A G E C R O P P I N G - */ -struct <link linkend="v4l2-cropcap">v4l2_cropcap</link> { - enum <link linkend="v4l2-buf-type">v4l2_buf_type</link> type; - struct <link linkend="v4l2-rect">v4l2_rect</link> bounds; - struct <link linkend="v4l2-rect">v4l2_rect</link> defrect; - struct <link linkend="v4l2-fract">v4l2_fract</link> pixelaspect; -}; - -struct <link linkend="v4l2-crop">v4l2_crop</link> { - enum <link linkend="v4l2-buf-type">v4l2_buf_type</link> type; - struct <link linkend="v4l2-rect">v4l2_rect</link> c; -}; - -/* - * A N A L O G V I D E O S T A N D A R D - */ - -typedef __u64 v4l2_std_id; - -/* one bit for each */ -#define V4L2_STD_PAL_B ((v4l2_std_id)0x00000001) -#define V4L2_STD_PAL_B1 ((v4l2_std_id)0x00000002) -#define V4L2_STD_PAL_G ((v4l2_std_id)0x00000004) -#define V4L2_STD_PAL_H ((v4l2_std_id)0x00000008) -#define V4L2_STD_PAL_I ((v4l2_std_id)0x00000010) -#define V4L2_STD_PAL_D ((v4l2_std_id)0x00000020) -#define V4L2_STD_PAL_D1 ((v4l2_std_id)0x00000040) -#define V4L2_STD_PAL_K ((v4l2_std_id)0x00000080) - -#define V4L2_STD_PAL_M ((v4l2_std_id)0x00000100) -#define V4L2_STD_PAL_N ((v4l2_std_id)0x00000200) -#define V4L2_STD_PAL_Nc ((v4l2_std_id)0x00000400) -#define V4L2_STD_PAL_60 ((v4l2_std_id)0x00000800) - -#define V4L2_STD_NTSC_M ((v4l2_std_id)0x00001000) -#define V4L2_STD_NTSC_M_JP ((v4l2_std_id)0x00002000) -#define V4L2_STD_NTSC_443 ((v4l2_std_id)0x00004000) -#define V4L2_STD_NTSC_M_KR ((v4l2_std_id)0x00008000) - -#define V4L2_STD_SECAM_B ((v4l2_std_id)0x00010000) -#define V4L2_STD_SECAM_D ((v4l2_std_id)0x00020000) -#define V4L2_STD_SECAM_G ((v4l2_std_id)0x00040000) -#define V4L2_STD_SECAM_H ((v4l2_std_id)0x00080000) -#define V4L2_STD_SECAM_K ((v4l2_std_id)0x00100000) -#define V4L2_STD_SECAM_K1 ((v4l2_std_id)0x00200000) -#define V4L2_STD_SECAM_L ((v4l2_std_id)0x00400000) -#define V4L2_STD_SECAM_LC ((v4l2_std_id)0x00800000) - -/* ATSC/HDTV */ -#define V4L2_STD_ATSC_8_VSB ((v4l2_std_id)0x01000000) -#define V4L2_STD_ATSC_16_VSB ((v4l2_std_id)0x02000000) - -/* FIXME: - Although std_id is 64 bits, there is an issue on PPC32 architecture that - makes switch(__u64) to break. So, there's a hack on v4l2-common.c rounding - this value to 32 bits. - As, currently, the max value is for V4L2_STD_ATSC_16_VSB (30 bits wide), - it should work fine. However, if needed to add more than two standards, - v4l2-common.c should be fixed. - */ - -/* some merged standards */ -#define V4L2_STD_MN (V4L2_STD_PAL_M|V4L2_STD_PAL_N|V4L2_STD_PAL_Nc|V4L2_STD_NTSC) -#define V4L2_STD_B (V4L2_STD_PAL_B|V4L2_STD_PAL_B1|V4L2_STD_SECAM_B) -#define V4L2_STD_GH (V4L2_STD_PAL_G|V4L2_STD_PAL_H|V4L2_STD_SECAM_G|V4L2_STD_SECAM_H) -#define V4L2_STD_DK (V4L2_STD_PAL_DK|V4L2_STD_SECAM_DK) - -/* some common needed stuff */ -#define V4L2_STD_PAL_BG (V4L2_STD_PAL_B |\ - V4L2_STD_PAL_B1 |\ - V4L2_STD_PAL_G) -#define V4L2_STD_PAL_DK (V4L2_STD_PAL_D |\ - V4L2_STD_PAL_D1 |\ - V4L2_STD_PAL_K) -#define V4L2_STD_PAL (V4L2_STD_PAL_BG |\ - V4L2_STD_PAL_DK |\ - V4L2_STD_PAL_H |\ - V4L2_STD_PAL_I) -#define V4L2_STD_NTSC (V4L2_STD_NTSC_M |\ - V4L2_STD_NTSC_M_JP |\ - V4L2_STD_NTSC_M_KR) -#define V4L2_STD_SECAM_DK (V4L2_STD_SECAM_D |\ - V4L2_STD_SECAM_K |\ - V4L2_STD_SECAM_K1) -#define V4L2_STD_SECAM (V4L2_STD_SECAM_B |\ - V4L2_STD_SECAM_G |\ - V4L2_STD_SECAM_H |\ - V4L2_STD_SECAM_DK |\ - V4L2_STD_SECAM_L |\ - V4L2_STD_SECAM_LC) - -#define V4L2_STD_525_60 (V4L2_STD_PAL_M |\ - V4L2_STD_PAL_60 |\ - V4L2_STD_NTSC |\ - V4L2_STD_NTSC_443) -#define V4L2_STD_625_50 (V4L2_STD_PAL |\ - V4L2_STD_PAL_N |\ - V4L2_STD_PAL_Nc |\ - V4L2_STD_SECAM) -#define V4L2_STD_ATSC (V4L2_STD_ATSC_8_VSB |\ - V4L2_STD_ATSC_16_VSB) - -#define V4L2_STD_UNKNOWN 0 -#define V4L2_STD_ALL (V4L2_STD_525_60 |\ - V4L2_STD_625_50) - -struct <link linkend="v4l2-standard">v4l2_standard</link> { - __u32 index; - v4l2_std_id id; - __u8 name[24]; - struct <link linkend="v4l2-fract">v4l2_fract</link> frameperiod; /* Frames, not fields */ - __u32 framelines; - __u32 reserved[4]; -}; - -/* - * V I D E O T I M I N G S D V P R E S E T - */ -struct <link linkend="v4l2-dv-preset">v4l2_dv_preset</link> { - __u32 preset; - __u32 reserved[4]; -}; - -/* - * D V P R E S E T S E N U M E R A T I O N - */ -struct <link linkend="v4l2-dv-enum-preset">v4l2_dv_enum_preset</link> { - __u32 index; - __u32 preset; - __u8 name[32]; /* Name of the preset timing */ - __u32 width; - __u32 height; - __u32 reserved[4]; -}; - -/* - * D V P R E S E T V A L U E S - */ -#define V4L2_DV_INVALID 0 -#define V4L2_DV_480P59_94 1 /* BT.1362 */ -#define V4L2_DV_576P50 2 /* BT.1362 */ -#define V4L2_DV_720P24 3 /* SMPTE 296M */ -#define V4L2_DV_720P25 4 /* SMPTE 296M */ -#define V4L2_DV_720P30 5 /* SMPTE 296M */ -#define V4L2_DV_720P50 6 /* SMPTE 296M */ -#define V4L2_DV_720P59_94 7 /* SMPTE 274M */ -#define V4L2_DV_720P60 8 /* SMPTE 274M/296M */ -#define V4L2_DV_1080I29_97 9 /* BT.1120/ SMPTE 274M */ -#define V4L2_DV_1080I30 10 /* BT.1120/ SMPTE 274M */ -#define V4L2_DV_1080I25 11 /* BT.1120 */ -#define V4L2_DV_1080I50 12 /* SMPTE 296M */ -#define V4L2_DV_1080I60 13 /* SMPTE 296M */ -#define V4L2_DV_1080P24 14 /* SMPTE 296M */ -#define V4L2_DV_1080P25 15 /* SMPTE 296M */ -#define V4L2_DV_1080P30 16 /* SMPTE 296M */ -#define V4L2_DV_1080P50 17 /* BT.1120 */ -#define V4L2_DV_1080P60 18 /* BT.1120 */ - -/* - * D V B T T I M I N G S - */ - -/* BT.656/BT.1120 timing data */ -struct <link linkend="v4l2-bt-timings">v4l2_bt_timings</link> { - __u32 width; /* width in pixels */ - __u32 height; /* height in lines */ - __u32 interlaced; /* Interlaced or progressive */ - __u32 polarities; /* Positive or negative polarity */ - __u64 pixelclock; /* Pixel clock in HZ. Ex. 74.25MHz->74250000 */ - __u32 hfrontporch; /* Horizpontal front porch in pixels */ - __u32 hsync; /* Horizontal Sync length in pixels */ - __u32 hbackporch; /* Horizontal back porch in pixels */ - __u32 vfrontporch; /* Vertical front porch in pixels */ - __u32 vsync; /* Vertical Sync length in lines */ - __u32 vbackporch; /* Vertical back porch in lines */ - __u32 il_vfrontporch; /* Vertical front porch for bottom field of - * interlaced field formats - */ - __u32 il_vsync; /* Vertical sync length for bottom field of - * interlaced field formats - */ - __u32 il_vbackporch; /* Vertical back porch for bottom field of - * interlaced field formats - */ - __u32 reserved[16]; -} __attribute__ ((packed)); - -/* Interlaced or progressive format */ -#define V4L2_DV_PROGRESSIVE 0 -#define V4L2_DV_INTERLACED 1 - -/* Polarities. If bit is not set, it is assumed to be negative polarity */ -#define V4L2_DV_VSYNC_POS_POL 0x00000001 -#define V4L2_DV_HSYNC_POS_POL 0x00000002 - - -/* DV timings */ -struct <link linkend="v4l2-dv-timings">v4l2_dv_timings</link> { - __u32 type; - union { - struct <link linkend="v4l2-bt-timings">v4l2_bt_timings</link> bt; - __u32 reserved[32]; - }; -} __attribute__ ((packed)); - -/* Values for the type field */ -#define V4L2_DV_BT_656_1120 0 /* BT.656/1120 timing type */ - -/* - * V I D E O I N P U T S - */ -struct <link linkend="v4l2-input">v4l2_input</link> { - __u32 index; /* Which input */ - __u8 name[32]; /* Label */ - __u32 type; /* Type of input */ - __u32 audioset; /* Associated audios (bitfield) */ - __u32 tuner; /* Associated tuner */ - v4l2_std_id std; - __u32 status; - __u32 capabilities; - __u32 reserved[3]; -}; - -/* Values for the 'type' field */ -#define V4L2_INPUT_TYPE_TUNER 1 -#define V4L2_INPUT_TYPE_CAMERA 2 - -/* field 'status' - general */ -#define V4L2_IN_ST_NO_POWER 0x00000001 /* Attached device is off */ -#define V4L2_IN_ST_NO_SIGNAL 0x00000002 -#define V4L2_IN_ST_NO_COLOR 0x00000004 - -/* field 'status' - sensor orientation */ -/* If sensor is mounted upside down set both bits */ -#define V4L2_IN_ST_HFLIP 0x00000010 /* Frames are flipped horizontally */ -#define V4L2_IN_ST_VFLIP 0x00000020 /* Frames are flipped vertically */ - -/* field 'status' - analog */ -#define V4L2_IN_ST_NO_H_LOCK 0x00000100 /* No horizontal sync lock */ -#define V4L2_IN_ST_COLOR_KILL 0x00000200 /* Color killer is active */ - -/* field 'status' - digital */ -#define V4L2_IN_ST_NO_SYNC 0x00010000 /* No synchronization lock */ -#define V4L2_IN_ST_NO_EQU 0x00020000 /* No equalizer lock */ -#define V4L2_IN_ST_NO_CARRIER 0x00040000 /* Carrier recovery failed */ - -/* field 'status' - VCR and set-top box */ -#define V4L2_IN_ST_MACROVISION 0x01000000 /* Macrovision detected */ -#define V4L2_IN_ST_NO_ACCESS 0x02000000 /* Conditional access denied */ -#define V4L2_IN_ST_VTR 0x04000000 /* VTR time constant */ - -/* capabilities flags */ -#define V4L2_IN_CAP_PRESETS 0x00000001 /* Supports S_DV_PRESET */ -#define V4L2_IN_CAP_CUSTOM_TIMINGS 0x00000002 /* Supports S_DV_TIMINGS */ -#define V4L2_IN_CAP_STD 0x00000004 /* Supports S_STD */ - -/* - * V I D E O O U T P U T S - */ -struct <link linkend="v4l2-output">v4l2_output</link> { - __u32 index; /* Which output */ - __u8 name[32]; /* Label */ - __u32 type; /* Type of output */ - __u32 audioset; /* Associated audios (bitfield) */ - __u32 modulator; /* Associated modulator */ - v4l2_std_id std; - __u32 capabilities; - __u32 reserved[3]; -}; -/* Values for the 'type' field */ -#define V4L2_OUTPUT_TYPE_MODULATOR 1 -#define V4L2_OUTPUT_TYPE_ANALOG 2 -#define V4L2_OUTPUT_TYPE_ANALOGVGAOVERLAY 3 - -/* capabilities flags */ -#define V4L2_OUT_CAP_PRESETS 0x00000001 /* Supports S_DV_PRESET */ -#define V4L2_OUT_CAP_CUSTOM_TIMINGS 0x00000002 /* Supports S_DV_TIMINGS */ -#define V4L2_OUT_CAP_STD 0x00000004 /* Supports S_STD */ - -/* - * C O N T R O L S - */ -struct <link linkend="v4l2-control">v4l2_control</link> { - __u32 id; - __s32 value; -}; - -struct <link linkend="v4l2-ext-control">v4l2_ext_control</link> { - __u32 id; - __u32 size; - __u32 reserved2[1]; - union { - __s32 value; - __s64 value64; - char *string; - }; -} __attribute__ ((packed)); - -struct <link linkend="v4l2-ext-controls">v4l2_ext_controls</link> { - __u32 ctrl_class; - __u32 count; - __u32 error_idx; - __u32 reserved[2]; - struct <link linkend="v4l2-ext-control">v4l2_ext_control</link> *controls; -}; - -/* Values for ctrl_class field */ -#define V4L2_CTRL_CLASS_USER 0x00980000 /* Old-style 'user' controls */ -#define V4L2_CTRL_CLASS_MPEG 0x00990000 /* MPEG-compression controls */ -#define V4L2_CTRL_CLASS_CAMERA 0x009a0000 /* Camera class controls */ -#define V4L2_CTRL_CLASS_FM_TX 0x009b0000 /* FM Modulator control class */ - -#define V4L2_CTRL_ID_MASK (0x0fffffff) -#define V4L2_CTRL_ID2CLASS(id) ((id) & 0x0fff0000UL) -#define V4L2_CTRL_DRIVER_PRIV(id) (((id) & 0xffff) >= 0x1000) - -enum <link linkend="v4l2-ctrl-type">v4l2_ctrl_type</link> { - V4L2_CTRL_TYPE_INTEGER = 1, - V4L2_CTRL_TYPE_BOOLEAN = 2, - V4L2_CTRL_TYPE_MENU = 3, - V4L2_CTRL_TYPE_BUTTON = 4, - V4L2_CTRL_TYPE_INTEGER64 = 5, - V4L2_CTRL_TYPE_CTRL_CLASS = 6, - V4L2_CTRL_TYPE_STRING = 7, -}; - -/* Used in the VIDIOC_QUERYCTRL ioctl for querying controls */ -struct <link linkend="v4l2-queryctrl">v4l2_queryctrl</link> { - __u32 id; - enum <link linkend="v4l2-ctrl-type">v4l2_ctrl_type</link> type; - __u8 name[32]; /* Whatever */ - __s32 minimum; /* Note signedness */ - __s32 maximum; - __s32 step; - __s32 default_value; - __u32 flags; - __u32 reserved[2]; -}; - -/* Used in the VIDIOC_QUERYMENU ioctl for querying menu items */ -struct <link linkend="v4l2-querymenu">v4l2_querymenu</link> { - __u32 id; - __u32 index; - __u8 name[32]; /* Whatever */ - __u32 reserved; -}; - -/* Control flags */ -#define V4L2_CTRL_FLAG_DISABLED 0x0001 -#define V4L2_CTRL_FLAG_GRABBED 0x0002 -#define V4L2_CTRL_FLAG_READ_ONLY 0x0004 -#define V4L2_CTRL_FLAG_UPDATE 0x0008 -#define V4L2_CTRL_FLAG_INACTIVE 0x0010 -#define V4L2_CTRL_FLAG_SLIDER 0x0020 -#define V4L2_CTRL_FLAG_WRITE_ONLY 0x0040 - -/* Query flag, to be ORed with the control ID */ -#define V4L2_CTRL_FLAG_NEXT_CTRL 0x80000000 - -/* User-class control IDs defined by V4L2 */ -#define V4L2_CID_BASE (V4L2_CTRL_CLASS_USER | 0x900) -#define V4L2_CID_USER_BASE V4L2_CID_BASE -/* IDs reserved for driver specific controls */ -#define V4L2_CID_PRIVATE_BASE 0x08000000 - -#define V4L2_CID_USER_CLASS (V4L2_CTRL_CLASS_USER | 1) -#define V4L2_CID_BRIGHTNESS (V4L2_CID_BASE+0) -#define V4L2_CID_CONTRAST (V4L2_CID_BASE+1) -#define V4L2_CID_SATURATION (V4L2_CID_BASE+2) -#define V4L2_CID_HUE (V4L2_CID_BASE+3) -#define V4L2_CID_AUDIO_VOLUME (V4L2_CID_BASE+5) -#define V4L2_CID_AUDIO_BALANCE (V4L2_CID_BASE+6) -#define V4L2_CID_AUDIO_BASS (V4L2_CID_BASE+7) -#define V4L2_CID_AUDIO_TREBLE (V4L2_CID_BASE+8) -#define V4L2_CID_AUDIO_MUTE (V4L2_CID_BASE+9) -#define V4L2_CID_AUDIO_LOUDNESS (V4L2_CID_BASE+10) -#define V4L2_CID_BLACK_LEVEL (V4L2_CID_BASE+11) /* Deprecated */ -#define V4L2_CID_AUTO_WHITE_BALANCE (V4L2_CID_BASE+12) -#define V4L2_CID_DO_WHITE_BALANCE (V4L2_CID_BASE+13) -#define V4L2_CID_RED_BALANCE (V4L2_CID_BASE+14) -#define V4L2_CID_BLUE_BALANCE (V4L2_CID_BASE+15) -#define V4L2_CID_GAMMA (V4L2_CID_BASE+16) -#define V4L2_CID_WHITENESS (V4L2_CID_GAMMA) /* Deprecated */ -#define V4L2_CID_EXPOSURE (V4L2_CID_BASE+17) -#define V4L2_CID_AUTOGAIN (V4L2_CID_BASE+18) -#define V4L2_CID_GAIN (V4L2_CID_BASE+19) -#define V4L2_CID_HFLIP (V4L2_CID_BASE+20) -#define V4L2_CID_VFLIP (V4L2_CID_BASE+21) - -/* Deprecated; use V4L2_CID_PAN_RESET and V4L2_CID_TILT_RESET */ -#define V4L2_CID_HCENTER (V4L2_CID_BASE+22) -#define V4L2_CID_VCENTER (V4L2_CID_BASE+23) - -#define V4L2_CID_POWER_LINE_FREQUENCY (V4L2_CID_BASE+24) -enum <link linkend="v4l2-power-line-frequency">v4l2_power_line_frequency</link> { - V4L2_CID_POWER_LINE_FREQUENCY_DISABLED = 0, - V4L2_CID_POWER_LINE_FREQUENCY_50HZ = 1, - V4L2_CID_POWER_LINE_FREQUENCY_60HZ = 2, -}; -#define V4L2_CID_HUE_AUTO (V4L2_CID_BASE+25) -#define V4L2_CID_WHITE_BALANCE_TEMPERATURE (V4L2_CID_BASE+26) -#define V4L2_CID_SHARPNESS (V4L2_CID_BASE+27) -#define V4L2_CID_BACKLIGHT_COMPENSATION (V4L2_CID_BASE+28) -#define V4L2_CID_CHROMA_AGC (V4L2_CID_BASE+29) -#define V4L2_CID_COLOR_KILLER (V4L2_CID_BASE+30) -#define V4L2_CID_COLORFX (V4L2_CID_BASE+31) -enum <link linkend="v4l2-colorfx">v4l2_colorfx</link> { - V4L2_COLORFX_NONE = 0, - V4L2_COLORFX_BW = 1, - V4L2_COLORFX_SEPIA = 2, - V4L2_COLORFX_NEGATIVE = 3, - V4L2_COLORFX_EMBOSS = 4, - V4L2_COLORFX_SKETCH = 5, - V4L2_COLORFX_SKY_BLUE = 6, - V4L2_COLORFX_GRASS_GREEN = 7, - V4L2_COLORFX_SKIN_WHITEN = 8, - V4L2_COLORFX_VIVID = 9, -}; -#define V4L2_CID_AUTOBRIGHTNESS (V4L2_CID_BASE+32) -#define V4L2_CID_BAND_STOP_FILTER (V4L2_CID_BASE+33) - -#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) - -#define V4L2_CID_ILLUMINATORS_1 (V4L2_CID_BASE+37) -#define V4L2_CID_ILLUMINATORS_2 (V4L2_CID_BASE+38) - -/* last CID + 1 */ -#define V4L2_CID_LASTP1 (V4L2_CID_BASE+39) - -/* MPEG-class control IDs defined by V4L2 */ -#define V4L2_CID_MPEG_BASE (V4L2_CTRL_CLASS_MPEG | 0x900) -#define V4L2_CID_MPEG_CLASS (V4L2_CTRL_CLASS_MPEG | 1) - -/* MPEG streams */ -#define V4L2_CID_MPEG_STREAM_TYPE (V4L2_CID_MPEG_BASE+0) -enum <link linkend="v4l2-mpeg-stream-type">v4l2_mpeg_stream_type</link> { - V4L2_MPEG_STREAM_TYPE_MPEG2_PS = 0, /* MPEG-2 program stream */ - V4L2_MPEG_STREAM_TYPE_MPEG2_TS = 1, /* MPEG-2 transport stream */ - V4L2_MPEG_STREAM_TYPE_MPEG1_SS = 2, /* MPEG-1 system stream */ - V4L2_MPEG_STREAM_TYPE_MPEG2_DVD = 3, /* MPEG-2 DVD-compatible stream */ - V4L2_MPEG_STREAM_TYPE_MPEG1_VCD = 4, /* MPEG-1 VCD-compatible stream */ - V4L2_MPEG_STREAM_TYPE_MPEG2_SVCD = 5, /* MPEG-2 SVCD-compatible stream */ -}; -#define V4L2_CID_MPEG_STREAM_PID_PMT (V4L2_CID_MPEG_BASE+1) -#define V4L2_CID_MPEG_STREAM_PID_AUDIO (V4L2_CID_MPEG_BASE+2) -#define V4L2_CID_MPEG_STREAM_PID_VIDEO (V4L2_CID_MPEG_BASE+3) -#define V4L2_CID_MPEG_STREAM_PID_PCR (V4L2_CID_MPEG_BASE+4) -#define V4L2_CID_MPEG_STREAM_PES_ID_AUDIO (V4L2_CID_MPEG_BASE+5) -#define V4L2_CID_MPEG_STREAM_PES_ID_VIDEO (V4L2_CID_MPEG_BASE+6) -#define V4L2_CID_MPEG_STREAM_VBI_FMT (V4L2_CID_MPEG_BASE+7) -enum <link linkend="v4l2-mpeg-stream-vbi-fmt">v4l2_mpeg_stream_vbi_fmt</link> { - V4L2_MPEG_STREAM_VBI_FMT_NONE = 0, /* No VBI in the MPEG stream */ - V4L2_MPEG_STREAM_VBI_FMT_IVTV = 1, /* VBI in private packets, IVTV format */ -}; - -/* MPEG audio */ -#define V4L2_CID_MPEG_AUDIO_SAMPLING_FREQ (V4L2_CID_MPEG_BASE+100) -enum <link linkend="v4l2-mpeg-audio-sampling-freq">v4l2_mpeg_audio_sampling_freq</link> { - V4L2_MPEG_AUDIO_SAMPLING_FREQ_44100 = 0, - V4L2_MPEG_AUDIO_SAMPLING_FREQ_48000 = 1, - V4L2_MPEG_AUDIO_SAMPLING_FREQ_32000 = 2, -}; -#define V4L2_CID_MPEG_AUDIO_ENCODING (V4L2_CID_MPEG_BASE+101) -enum <link linkend="v4l2-mpeg-audio-encoding">v4l2_mpeg_audio_encoding</link> { - V4L2_MPEG_AUDIO_ENCODING_LAYER_1 = 0, - V4L2_MPEG_AUDIO_ENCODING_LAYER_2 = 1, - V4L2_MPEG_AUDIO_ENCODING_LAYER_3 = 2, - V4L2_MPEG_AUDIO_ENCODING_AAC = 3, - V4L2_MPEG_AUDIO_ENCODING_AC3 = 4, -}; -#define V4L2_CID_MPEG_AUDIO_L1_BITRATE (V4L2_CID_MPEG_BASE+102) -enum <link linkend="v4l2-mpeg-audio-l1-bitrate">v4l2_mpeg_audio_l1_bitrate</link> { - V4L2_MPEG_AUDIO_L1_BITRATE_32K = 0, - V4L2_MPEG_AUDIO_L1_BITRATE_64K = 1, - V4L2_MPEG_AUDIO_L1_BITRATE_96K = 2, - V4L2_MPEG_AUDIO_L1_BITRATE_128K = 3, - V4L2_MPEG_AUDIO_L1_BITRATE_160K = 4, - V4L2_MPEG_AUDIO_L1_BITRATE_192K = 5, - V4L2_MPEG_AUDIO_L1_BITRATE_224K = 6, - V4L2_MPEG_AUDIO_L1_BITRATE_256K = 7, - V4L2_MPEG_AUDIO_L1_BITRATE_288K = 8, - V4L2_MPEG_AUDIO_L1_BITRATE_320K = 9, - V4L2_MPEG_AUDIO_L1_BITRATE_352K = 10, - V4L2_MPEG_AUDIO_L1_BITRATE_384K = 11, - V4L2_MPEG_AUDIO_L1_BITRATE_416K = 12, - V4L2_MPEG_AUDIO_L1_BITRATE_448K = 13, -}; -#define V4L2_CID_MPEG_AUDIO_L2_BITRATE (V4L2_CID_MPEG_BASE+103) -enum <link linkend="v4l2-mpeg-audio-l2-bitrate">v4l2_mpeg_audio_l2_bitrate</link> { - V4L2_MPEG_AUDIO_L2_BITRATE_32K = 0, - V4L2_MPEG_AUDIO_L2_BITRATE_48K = 1, - V4L2_MPEG_AUDIO_L2_BITRATE_56K = 2, - V4L2_MPEG_AUDIO_L2_BITRATE_64K = 3, - V4L2_MPEG_AUDIO_L2_BITRATE_80K = 4, - V4L2_MPEG_AUDIO_L2_BITRATE_96K = 5, - V4L2_MPEG_AUDIO_L2_BITRATE_112K = 6, - V4L2_MPEG_AUDIO_L2_BITRATE_128K = 7, - V4L2_MPEG_AUDIO_L2_BITRATE_160K = 8, - V4L2_MPEG_AUDIO_L2_BITRATE_192K = 9, - V4L2_MPEG_AUDIO_L2_BITRATE_224K = 10, - V4L2_MPEG_AUDIO_L2_BITRATE_256K = 11, - V4L2_MPEG_AUDIO_L2_BITRATE_320K = 12, - V4L2_MPEG_AUDIO_L2_BITRATE_384K = 13, -}; -#define V4L2_CID_MPEG_AUDIO_L3_BITRATE (V4L2_CID_MPEG_BASE+104) -enum <link linkend="v4l2-mpeg-audio-l3-bitrate">v4l2_mpeg_audio_l3_bitrate</link> { - V4L2_MPEG_AUDIO_L3_BITRATE_32K = 0, - V4L2_MPEG_AUDIO_L3_BITRATE_40K = 1, - V4L2_MPEG_AUDIO_L3_BITRATE_48K = 2, - V4L2_MPEG_AUDIO_L3_BITRATE_56K = 3, - V4L2_MPEG_AUDIO_L3_BITRATE_64K = 4, - V4L2_MPEG_AUDIO_L3_BITRATE_80K = 5, - V4L2_MPEG_AUDIO_L3_BITRATE_96K = 6, - V4L2_MPEG_AUDIO_L3_BITRATE_112K = 7, - V4L2_MPEG_AUDIO_L3_BITRATE_128K = 8, - V4L2_MPEG_AUDIO_L3_BITRATE_160K = 9, - V4L2_MPEG_AUDIO_L3_BITRATE_192K = 10, - V4L2_MPEG_AUDIO_L3_BITRATE_224K = 11, - V4L2_MPEG_AUDIO_L3_BITRATE_256K = 12, - V4L2_MPEG_AUDIO_L3_BITRATE_320K = 13, -}; -#define V4L2_CID_MPEG_AUDIO_MODE (V4L2_CID_MPEG_BASE+105) -enum <link linkend="v4l2-mpeg-audio-mode">v4l2_mpeg_audio_mode</link> { - V4L2_MPEG_AUDIO_MODE_STEREO = 0, - V4L2_MPEG_AUDIO_MODE_JOINT_STEREO = 1, - V4L2_MPEG_AUDIO_MODE_DUAL = 2, - V4L2_MPEG_AUDIO_MODE_MONO = 3, -}; -#define V4L2_CID_MPEG_AUDIO_MODE_EXTENSION (V4L2_CID_MPEG_BASE+106) -enum <link linkend="v4l2-mpeg-audio-mode-extension">v4l2_mpeg_audio_mode_extension</link> { - V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_4 = 0, - V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_8 = 1, - V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_12 = 2, - V4L2_MPEG_AUDIO_MODE_EXTENSION_BOUND_16 = 3, -}; -#define V4L2_CID_MPEG_AUDIO_EMPHASIS (V4L2_CID_MPEG_BASE+107) -enum <link linkend="v4l2-mpeg-audio-emphasis">v4l2_mpeg_audio_emphasis</link> { - V4L2_MPEG_AUDIO_EMPHASIS_NONE = 0, - V4L2_MPEG_AUDIO_EMPHASIS_50_DIV_15_uS = 1, - V4L2_MPEG_AUDIO_EMPHASIS_CCITT_J17 = 2, -}; -#define V4L2_CID_MPEG_AUDIO_CRC (V4L2_CID_MPEG_BASE+108) -enum <link linkend="v4l2-mpeg-audio-crc">v4l2_mpeg_audio_crc</link> { - V4L2_MPEG_AUDIO_CRC_NONE = 0, - V4L2_MPEG_AUDIO_CRC_CRC16 = 1, -}; -#define V4L2_CID_MPEG_AUDIO_MUTE (V4L2_CID_MPEG_BASE+109) -#define V4L2_CID_MPEG_AUDIO_AAC_BITRATE (V4L2_CID_MPEG_BASE+110) -#define V4L2_CID_MPEG_AUDIO_AC3_BITRATE (V4L2_CID_MPEG_BASE+111) -enum <link linkend="v4l2-mpeg-audio-ac3-bitrate">v4l2_mpeg_audio_ac3_bitrate</link> { - V4L2_MPEG_AUDIO_AC3_BITRATE_32K = 0, - V4L2_MPEG_AUDIO_AC3_BITRATE_40K = 1, - V4L2_MPEG_AUDIO_AC3_BITRATE_48K = 2, - V4L2_MPEG_AUDIO_AC3_BITRATE_56K = 3, - V4L2_MPEG_AUDIO_AC3_BITRATE_64K = 4, - V4L2_MPEG_AUDIO_AC3_BITRATE_80K = 5, - V4L2_MPEG_AUDIO_AC3_BITRATE_96K = 6, - V4L2_MPEG_AUDIO_AC3_BITRATE_112K = 7, - V4L2_MPEG_AUDIO_AC3_BITRATE_128K = 8, - V4L2_MPEG_AUDIO_AC3_BITRATE_160K = 9, - V4L2_MPEG_AUDIO_AC3_BITRATE_192K = 10, - V4L2_MPEG_AUDIO_AC3_BITRATE_224K = 11, - V4L2_MPEG_AUDIO_AC3_BITRATE_256K = 12, - V4L2_MPEG_AUDIO_AC3_BITRATE_320K = 13, - V4L2_MPEG_AUDIO_AC3_BITRATE_384K = 14, - V4L2_MPEG_AUDIO_AC3_BITRATE_448K = 15, - V4L2_MPEG_AUDIO_AC3_BITRATE_512K = 16, - V4L2_MPEG_AUDIO_AC3_BITRATE_576K = 17, - V4L2_MPEG_AUDIO_AC3_BITRATE_640K = 18, -}; - -/* MPEG video */ -#define V4L2_CID_MPEG_VIDEO_ENCODING (V4L2_CID_MPEG_BASE+200) -enum <link linkend="v4l2-mpeg-video-encoding">v4l2_mpeg_video_encoding</link> { - V4L2_MPEG_VIDEO_ENCODING_MPEG_1 = 0, - V4L2_MPEG_VIDEO_ENCODING_MPEG_2 = 1, - V4L2_MPEG_VIDEO_ENCODING_MPEG_4_AVC = 2, -}; -#define V4L2_CID_MPEG_VIDEO_ASPECT (V4L2_CID_MPEG_BASE+201) -enum <link linkend="v4l2-mpeg-video-aspect">v4l2_mpeg_video_aspect</link> { - V4L2_MPEG_VIDEO_ASPECT_1x1 = 0, - V4L2_MPEG_VIDEO_ASPECT_4x3 = 1, - V4L2_MPEG_VIDEO_ASPECT_16x9 = 2, - V4L2_MPEG_VIDEO_ASPECT_221x100 = 3, -}; -#define V4L2_CID_MPEG_VIDEO_B_FRAMES (V4L2_CID_MPEG_BASE+202) -#define V4L2_CID_MPEG_VIDEO_GOP_SIZE (V4L2_CID_MPEG_BASE+203) -#define V4L2_CID_MPEG_VIDEO_GOP_CLOSURE (V4L2_CID_MPEG_BASE+204) -#define V4L2_CID_MPEG_VIDEO_PULLDOWN (V4L2_CID_MPEG_BASE+205) -#define V4L2_CID_MPEG_VIDEO_BITRATE_MODE (V4L2_CID_MPEG_BASE+206) -enum <link linkend="v4l2-mpeg-video-bitrate-mode">v4l2_mpeg_video_bitrate_mode</link> { - V4L2_MPEG_VIDEO_BITRATE_MODE_VBR = 0, - V4L2_MPEG_VIDEO_BITRATE_MODE_CBR = 1, -}; -#define V4L2_CID_MPEG_VIDEO_BITRATE (V4L2_CID_MPEG_BASE+207) -#define V4L2_CID_MPEG_VIDEO_BITRATE_PEAK (V4L2_CID_MPEG_BASE+208) -#define V4L2_CID_MPEG_VIDEO_TEMPORAL_DECIMATION (V4L2_CID_MPEG_BASE+209) -#define V4L2_CID_MPEG_VIDEO_MUTE (V4L2_CID_MPEG_BASE+210) -#define V4L2_CID_MPEG_VIDEO_MUTE_YUV (V4L2_CID_MPEG_BASE+211) - -/* MPEG-class control IDs specific to the CX2341x driver as defined by V4L2 */ -#define V4L2_CID_MPEG_CX2341X_BASE (V4L2_CTRL_CLASS_MPEG | 0x1000) -#define V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE (V4L2_CID_MPEG_CX2341X_BASE+0) -enum <link linkend="v4l2-mpeg-cx2341x-video-spatial-filter-mode">v4l2_mpeg_cx2341x_video_spatial_filter_mode</link> { - V4L2_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE_MANUAL = 0, - V4L2_MPEG_CX2341X_VIDEO_SPATIAL_FILTER_MODE_AUTO = 1, -}; -#define V4L2_CID_MPEG_CX2341X_VIDEO_SPATIAL_FILTER (V4L2_CID_MPEG_CX2341X_BASE+1) -#define V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE (V4L2_CID_MPEG_CX2341X_BASE+2) -enum <link linkend="luma-spatial-filter-type">v4l2_mpeg_cx2341x_video_luma_spatial_filter_type</link> { - V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_OFF = 0, - V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_1D_HOR = 1, - V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_1D_VERT = 2, - V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_2D_HV_SEPARABLE = 3, - V4L2_MPEG_CX2341X_VIDEO_LUMA_SPATIAL_FILTER_TYPE_2D_SYM_NON_SEPARABLE = 4, -}; -#define V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE (V4L2_CID_MPEG_CX2341X_BASE+3) -enum <link linkend="chroma-spatial-filter-type">v4l2_mpeg_cx2341x_video_chroma_spatial_filter_type</link> { - V4L2_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE_OFF = 0, - V4L2_MPEG_CX2341X_VIDEO_CHROMA_SPATIAL_FILTER_TYPE_1D_HOR = 1, -}; -#define V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE (V4L2_CID_MPEG_CX2341X_BASE+4) -enum <link linkend="v4l2-mpeg-cx2341x-video-temporal-filter-mode">v4l2_mpeg_cx2341x_video_temporal_filter_mode</link> { - V4L2_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE_MANUAL = 0, - V4L2_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER_MODE_AUTO = 1, -}; -#define V4L2_CID_MPEG_CX2341X_VIDEO_TEMPORAL_FILTER (V4L2_CID_MPEG_CX2341X_BASE+5) -#define V4L2_CID_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE (V4L2_CID_MPEG_CX2341X_BASE+6) -enum <link linkend="v4l2-mpeg-cx2341x-video-median-filter-type">v4l2_mpeg_cx2341x_video_median_filter_type</link> { - V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_OFF = 0, - V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_HOR = 1, - V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_VERT = 2, - V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_HOR_VERT = 3, - V4L2_MPEG_CX2341X_VIDEO_MEDIAN_FILTER_TYPE_DIAG = 4, -}; -#define V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_BOTTOM (V4L2_CID_MPEG_CX2341X_BASE+7) -#define V4L2_CID_MPEG_CX2341X_VIDEO_LUMA_MEDIAN_FILTER_TOP (V4L2_CID_MPEG_CX2341X_BASE+8) -#define V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_BOTTOM (V4L2_CID_MPEG_CX2341X_BASE+9) -#define V4L2_CID_MPEG_CX2341X_VIDEO_CHROMA_MEDIAN_FILTER_TOP (V4L2_CID_MPEG_CX2341X_BASE+10) -#define V4L2_CID_MPEG_CX2341X_STREAM_INSERT_NAV_PACKETS (V4L2_CID_MPEG_CX2341X_BASE+11) - -/* Camera class control IDs */ -#define V4L2_CID_CAMERA_CLASS_BASE (V4L2_CTRL_CLASS_CAMERA | 0x900) -#define V4L2_CID_CAMERA_CLASS (V4L2_CTRL_CLASS_CAMERA | 1) - -#define V4L2_CID_EXPOSURE_AUTO (V4L2_CID_CAMERA_CLASS_BASE+1) -enum <link linkend="v4l2-exposure-auto-type">v4l2_exposure_auto_type</link> { - V4L2_EXPOSURE_AUTO = 0, - V4L2_EXPOSURE_MANUAL = 1, - V4L2_EXPOSURE_SHUTTER_PRIORITY = 2, - V4L2_EXPOSURE_APERTURE_PRIORITY = 3 -}; -#define V4L2_CID_EXPOSURE_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+2) -#define V4L2_CID_EXPOSURE_AUTO_PRIORITY (V4L2_CID_CAMERA_CLASS_BASE+3) - -#define V4L2_CID_PAN_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+4) -#define V4L2_CID_TILT_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+5) -#define V4L2_CID_PAN_RESET (V4L2_CID_CAMERA_CLASS_BASE+6) -#define V4L2_CID_TILT_RESET (V4L2_CID_CAMERA_CLASS_BASE+7) - -#define V4L2_CID_PAN_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+8) -#define V4L2_CID_TILT_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+9) - -#define V4L2_CID_FOCUS_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+10) -#define V4L2_CID_FOCUS_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+11) -#define V4L2_CID_FOCUS_AUTO (V4L2_CID_CAMERA_CLASS_BASE+12) - -#define V4L2_CID_ZOOM_ABSOLUTE (V4L2_CID_CAMERA_CLASS_BASE+13) -#define V4L2_CID_ZOOM_RELATIVE (V4L2_CID_CAMERA_CLASS_BASE+14) -#define V4L2_CID_ZOOM_CONTINUOUS (V4L2_CID_CAMERA_CLASS_BASE+15) - -#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) - -#define V4L2_CID_RDS_TX_DEVIATION (V4L2_CID_FM_TX_CLASS_BASE + 1) -#define V4L2_CID_RDS_TX_PI (V4L2_CID_FM_TX_CLASS_BASE + 2) -#define V4L2_CID_RDS_TX_PTY (V4L2_CID_FM_TX_CLASS_BASE + 3) -#define V4L2_CID_RDS_TX_PS_NAME (V4L2_CID_FM_TX_CLASS_BASE + 5) -#define V4L2_CID_RDS_TX_RADIO_TEXT (V4L2_CID_FM_TX_CLASS_BASE + 6) - -#define V4L2_CID_AUDIO_LIMITER_ENABLED (V4L2_CID_FM_TX_CLASS_BASE + 64) -#define V4L2_CID_AUDIO_LIMITER_RELEASE_TIME (V4L2_CID_FM_TX_CLASS_BASE + 65) -#define V4L2_CID_AUDIO_LIMITER_DEVIATION (V4L2_CID_FM_TX_CLASS_BASE + 66) - -#define V4L2_CID_AUDIO_COMPRESSION_ENABLED (V4L2_CID_FM_TX_CLASS_BASE + 80) -#define V4L2_CID_AUDIO_COMPRESSION_GAIN (V4L2_CID_FM_TX_CLASS_BASE + 81) -#define V4L2_CID_AUDIO_COMPRESSION_THRESHOLD (V4L2_CID_FM_TX_CLASS_BASE + 82) -#define V4L2_CID_AUDIO_COMPRESSION_ATTACK_TIME (V4L2_CID_FM_TX_CLASS_BASE + 83) -#define V4L2_CID_AUDIO_COMPRESSION_RELEASE_TIME (V4L2_CID_FM_TX_CLASS_BASE + 84) - -#define V4L2_CID_PILOT_TONE_ENABLED (V4L2_CID_FM_TX_CLASS_BASE + 96) -#define V4L2_CID_PILOT_TONE_DEVIATION (V4L2_CID_FM_TX_CLASS_BASE + 97) -#define V4L2_CID_PILOT_TONE_FREQUENCY (V4L2_CID_FM_TX_CLASS_BASE + 98) - -#define V4L2_CID_TUNE_PREEMPHASIS (V4L2_CID_FM_TX_CLASS_BASE + 112) -enum <link linkend="v4l2-preemphasis">v4l2_preemphasis</link> { - V4L2_PREEMPHASIS_DISABLED = 0, - V4L2_PREEMPHASIS_50_uS = 1, - V4L2_PREEMPHASIS_75_uS = 2, -}; -#define V4L2_CID_TUNE_POWER_LEVEL (V4L2_CID_FM_TX_CLASS_BASE + 113) -#define V4L2_CID_TUNE_ANTENNA_CAPACITOR (V4L2_CID_FM_TX_CLASS_BASE + 114) - -/* - * T U N I N G - */ -struct <link linkend="v4l2-tuner">v4l2_tuner</link> { - __u32 index; - __u8 name[32]; - enum <link linkend="v4l2-tuner-type">v4l2_tuner_type</link> type; - __u32 capability; - __u32 rangelow; - __u32 rangehigh; - __u32 rxsubchans; - __u32 audmode; - __s32 signal; - __s32 afc; - __u32 reserved[4]; -}; - -struct <link linkend="v4l2-modulator">v4l2_modulator</link> { - __u32 index; - __u8 name[32]; - __u32 capability; - __u32 rangelow; - __u32 rangehigh; - __u32 txsubchans; - __u32 reserved[4]; -}; - -/* Flags for the 'capability' field */ -#define V4L2_TUNER_CAP_LOW 0x0001 -#define V4L2_TUNER_CAP_NORM 0x0002 -#define V4L2_TUNER_CAP_STEREO 0x0010 -#define V4L2_TUNER_CAP_LANG2 0x0020 -#define V4L2_TUNER_CAP_SAP 0x0020 -#define V4L2_TUNER_CAP_LANG1 0x0040 -#define V4L2_TUNER_CAP_RDS 0x0080 -#define V4L2_TUNER_CAP_RDS_BLOCK_IO 0x0100 -#define V4L2_TUNER_CAP_RDS_CONTROLS 0x0200 - -/* Flags for the 'rxsubchans' field */ -#define V4L2_TUNER_SUB_MONO 0x0001 -#define V4L2_TUNER_SUB_STEREO 0x0002 -#define V4L2_TUNER_SUB_LANG2 0x0004 -#define V4L2_TUNER_SUB_SAP 0x0004 -#define V4L2_TUNER_SUB_LANG1 0x0008 -#define V4L2_TUNER_SUB_RDS 0x0010 - -/* Values for the 'audmode' field */ -#define V4L2_TUNER_MODE_MONO 0x0000 -#define V4L2_TUNER_MODE_STEREO 0x0001 -#define V4L2_TUNER_MODE_LANG2 0x0002 -#define V4L2_TUNER_MODE_SAP 0x0002 -#define V4L2_TUNER_MODE_LANG1 0x0003 -#define V4L2_TUNER_MODE_LANG1_LANG2 0x0004 - -struct <link linkend="v4l2-frequency">v4l2_frequency</link> { - __u32 tuner; - enum <link linkend="v4l2-tuner-type">v4l2_tuner_type</link> type; - __u32 frequency; - __u32 reserved[8]; -}; - -struct <link linkend="v4l2-hw-freq-seek">v4l2_hw_freq_seek</link> { - __u32 tuner; - enum <link linkend="v4l2-tuner-type">v4l2_tuner_type</link> type; - __u32 seek_upward; - __u32 wrap_around; - __u32 spacing; - __u32 reserved[7]; -}; - -/* - * R D S - */ - -struct <link linkend="v4l2-rds-data">v4l2_rds_data</link> { - __u8 lsb; - __u8 msb; - __u8 block; -} __attribute__ ((packed)); - -#define V4L2_RDS_BLOCK_MSK 0x7 -#define V4L2_RDS_BLOCK_A 0 -#define V4L2_RDS_BLOCK_B 1 -#define V4L2_RDS_BLOCK_C 2 -#define V4L2_RDS_BLOCK_D 3 -#define V4L2_RDS_BLOCK_C_ALT 4 -#define V4L2_RDS_BLOCK_INVALID 7 - -#define V4L2_RDS_BLOCK_CORRECTED 0x40 -#define V4L2_RDS_BLOCK_ERROR 0x80 - -/* - * A U D I O - */ -struct <link linkend="v4l2-audio">v4l2_audio</link> { - __u32 index; - __u8 name[32]; - __u32 capability; - __u32 mode; - __u32 reserved[2]; -}; - -/* Flags for the 'capability' field */ -#define V4L2_AUDCAP_STEREO 0x00001 -#define V4L2_AUDCAP_AVL 0x00002 - -/* Flags for the 'mode' field */ -#define V4L2_AUDMODE_AVL 0x00001 - -struct <link linkend="v4l2-audioout">v4l2_audioout</link> { - __u32 index; - __u8 name[32]; - __u32 capability; - __u32 mode; - __u32 reserved[2]; -}; - -/* - * M P E G S E R V I C E S - * - * NOTE: EXPERIMENTAL API - */ -#if 1 -#define V4L2_ENC_IDX_FRAME_I (0) -#define V4L2_ENC_IDX_FRAME_P (1) -#define V4L2_ENC_IDX_FRAME_B (2) -#define V4L2_ENC_IDX_FRAME_MASK (0xf) - -struct <link linkend="v4l2-enc-idx-entry">v4l2_enc_idx_entry</link> { - __u64 offset; - __u64 pts; - __u32 length; - __u32 flags; - __u32 reserved[2]; -}; - -#define V4L2_ENC_IDX_ENTRIES (64) -struct <link linkend="v4l2-enc-idx">v4l2_enc_idx</link> { - __u32 entries; - __u32 entries_cap; - __u32 reserved[4]; - struct <link linkend="v4l2-enc-idx-entry">v4l2_enc_idx_entry</link> entry[V4L2_ENC_IDX_ENTRIES]; -}; - - -#define V4L2_ENC_CMD_START (0) -#define V4L2_ENC_CMD_STOP (1) -#define V4L2_ENC_CMD_PAUSE (2) -#define V4L2_ENC_CMD_RESUME (3) - -/* Flags for V4L2_ENC_CMD_STOP */ -#define V4L2_ENC_CMD_STOP_AT_GOP_END (1 << 0) - -struct <link linkend="v4l2-encoder-cmd">v4l2_encoder_cmd</link> { - __u32 cmd; - __u32 flags; - union { - struct { - __u32 data[8]; - } raw; - }; -}; - -#endif - - -/* - * D A T A S E R V I C E S ( V B I ) - * - * Data services API by Michael Schimek - */ - -/* Raw VBI */ -struct <link linkend="v4l2-vbi-format">v4l2_vbi_format</link> { - __u32 sampling_rate; /* in 1 Hz */ - __u32 offset; - __u32 samples_per_line; - __u32 sample_format; /* V4L2_PIX_FMT_* */ - __s32 start[2]; - __u32 count[2]; - __u32 flags; /* V4L2_VBI_* */ - __u32 reserved[2]; /* must be zero */ -}; - -/* VBI flags */ -#define V4L2_VBI_UNSYNC (1 << 0) -#define V4L2_VBI_INTERLACED (1 << 1) - -/* Sliced VBI - * - * This implements is a proposal V4L2 API to allow SLICED VBI - * required for some hardware encoders. It should change without - * notice in the definitive implementation. - */ - -struct <link linkend="v4l2-sliced-vbi-format">v4l2_sliced_vbi_format</link> { - __u16 service_set; - /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field - service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field - (equals frame lines 313-336 for 625 line video - standards, 263-286 for 525 line standards) */ - __u16 service_lines[2][24]; - __u32 io_size; - __u32 reserved[2]; /* must be zero */ -}; - -/* Teletext World System Teletext - (WST), defined on ITU-R BT.653-2 */ -#define V4L2_SLICED_TELETEXT_B (0x0001) -/* Video Program System, defined on ETS 300 231*/ -#define V4L2_SLICED_VPS (0x0400) -/* Closed Caption, defined on EIA-608 */ -#define V4L2_SLICED_CAPTION_525 (0x1000) -/* Wide Screen System, defined on ITU-R BT1119.1 */ -#define V4L2_SLICED_WSS_625 (0x4000) - -#define V4L2_SLICED_VBI_525 (V4L2_SLICED_CAPTION_525) -#define V4L2_SLICED_VBI_625 (V4L2_SLICED_TELETEXT_B | V4L2_SLICED_VPS | V4L2_SLICED_WSS_625) - -struct <link linkend="v4l2-sliced-vbi-cap">v4l2_sliced_vbi_cap</link> { - __u16 service_set; - /* service_lines[0][...] specifies lines 0-23 (1-23 used) of the first field - service_lines[1][...] specifies lines 0-23 (1-23 used) of the second field - (equals frame lines 313-336 for 625 line video - standards, 263-286 for 525 line standards) */ - __u16 service_lines[2][24]; - enum <link linkend="v4l2-buf-type">v4l2_buf_type</link> type; - __u32 reserved[3]; /* must be 0 */ -}; - -struct <link linkend="v4l2-sliced-vbi-data">v4l2_sliced_vbi_data</link> { - __u32 id; - __u32 field; /* 0: first field, 1: second field */ - __u32 line; /* 1-23 */ - __u32 reserved; /* must be 0 */ - __u8 data[48]; -}; - -/* - * Sliced VBI data inserted into MPEG Streams - */ - -/* - * V4L2_MPEG_STREAM_VBI_FMT_IVTV: - * - * Structure of payload contained in an MPEG 2 Private Stream 1 PES Packet in an - * MPEG-2 Program Pack that contains V4L2_MPEG_STREAM_VBI_FMT_IVTV Sliced VBI - * data - * - * Note, the MPEG-2 Program Pack and Private Stream 1 PES packet header - * definitions are not included here. See the MPEG-2 specifications for details - * on these headers. - */ - -/* Line type IDs */ -#define V4L2_MPEG_VBI_IVTV_TELETEXT_B (1) -#define V4L2_MPEG_VBI_IVTV_CAPTION_525 (4) -#define V4L2_MPEG_VBI_IVTV_WSS_625 (5) -#define V4L2_MPEG_VBI_IVTV_VPS (7) - -struct <link linkend="v4l2-mpeg-vbi-itv0-line">v4l2_mpeg_vbi_itv0_line</link> { - __u8 id; /* One of V4L2_MPEG_VBI_IVTV_* above */ - __u8 data[42]; /* Sliced VBI data for the line */ -} __attribute__ ((packed)); - -struct <link linkend="v4l2-mpeg-vbi-itv0">v4l2_mpeg_vbi_itv0</link> { - __le32 linemask[2]; /* Bitmasks of VBI service lines present */ - struct <link linkend="v4l2-mpeg-vbi-itv0-line">v4l2_mpeg_vbi_itv0_line</link> line[35]; -} __attribute__ ((packed)); - -struct <link linkend="v4l2-mpeg-vbi-itv0-1">v4l2_mpeg_vbi_ITV0</link> { - struct <link linkend="v4l2-mpeg-vbi-itv0-line">v4l2_mpeg_vbi_itv0_line</link> line[36]; -} __attribute__ ((packed)); - -#define V4L2_MPEG_VBI_IVTV_MAGIC0 "itv0" -#define V4L2_MPEG_VBI_IVTV_MAGIC1 "ITV0" - -struct <link linkend="v4l2-mpeg-vbi-fmt-ivtv">v4l2_mpeg_vbi_fmt_ivtv</link> { - __u8 magic[4]; - union { - struct <link linkend="v4l2-mpeg-vbi-itv0">v4l2_mpeg_vbi_itv0</link> itv0; - struct <link linkend="v4l2-mpeg-vbi-itv0-1">v4l2_mpeg_vbi_ITV0</link> ITV0; - }; -} __attribute__ ((packed)); - -/* - * A G G R E G A T E S T R U C T U R E S - */ - -/** - * struct <link linkend="v4l2-plane-pix-format">v4l2_plane_pix_format</link> - additional, per-plane format definition - * @sizeimage: maximum size in bytes required for data, for which - * this plane will be used - * @bytesperline: distance in bytes between the leftmost pixels in two - * adjacent lines - */ -struct <link linkend="v4l2-plane-pix-format">v4l2_plane_pix_format</link> { - __u32 sizeimage; - __u16 bytesperline; - __u16 reserved[7]; -} __attribute__ ((packed)); - -/** - * struct <link linkend="v4l2-pix-format-mplane">v4l2_pix_format_mplane</link> - multiplanar format definition - * @width: image width in pixels - * @height: image height in pixels - * @pixelformat: little endian four character code (fourcc) - * @field: field order (for interlaced video) - * @colorspace: supplemental to pixelformat - * @plane_fmt: per-plane information - * @num_planes: number of planes for this format - */ -struct <link linkend="v4l2-pix-format-mplane">v4l2_pix_format_mplane</link> { - __u32 width; - __u32 height; - __u32 pixelformat; - enum <link linkend="v4l2-field">v4l2_field</link> field; - enum <link linkend="v4l2-colorspace">v4l2_colorspace</link> colorspace; - - struct <link linkend="v4l2-plane-pix-format">v4l2_plane_pix_format</link> plane_fmt[VIDEO_MAX_PLANES]; - __u8 num_planes; - __u8 reserved[11]; -} __attribute__ ((packed)); - -/** - * struct <link linkend="v4l2-format">v4l2_format</link> - stream data format - * @type: type of the data stream - * @pix: definition of an image format - * @pix_mp: definition of a multiplanar image format - * @win: definition of an overlaid image - * @vbi: raw VBI capture or output parameters - * @sliced: sliced VBI capture or output parameters - * @raw_data: placeholder for future extensions and custom formats - */ -struct <link linkend="v4l2-format">v4l2_format</link> { - enum <link linkend="v4l2-buf-type">v4l2_buf_type</link> type; - union { - struct <link linkend="v4l2-pix-format">v4l2_pix_format</link> pix; /* V4L2_BUF_TYPE_VIDEO_CAPTURE */ - struct <link linkend="v4l2-pix-format-mplane">v4l2_pix_format_mplane</link> pix_mp; /* V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE */ - struct <link linkend="v4l2-window">v4l2_window</link> win; /* V4L2_BUF_TYPE_VIDEO_OVERLAY */ - struct <link linkend="v4l2-vbi-format">v4l2_vbi_format</link> vbi; /* V4L2_BUF_TYPE_VBI_CAPTURE */ - struct <link linkend="v4l2-sliced-vbi-format">v4l2_sliced_vbi_format</link> sliced; /* V4L2_BUF_TYPE_SLICED_VBI_CAPTURE */ - __u8 raw_data[200]; /* user-defined */ - } fmt; -}; - -/* Stream type-dependent parameters - */ -struct <link linkend="v4l2-streamparm">v4l2_streamparm</link> { - enum <link linkend="v4l2-buf-type">v4l2_buf_type</link> type; - union { - struct <link linkend="v4l2-captureparm">v4l2_captureparm</link> capture; - struct <link linkend="v4l2-outputparm">v4l2_outputparm</link> output; - __u8 raw_data[200]; /* user-defined */ - } parm; -}; - -/* - * E V E N T S - */ - -#define V4L2_EVENT_ALL 0 -#define V4L2_EVENT_VSYNC 1 -#define V4L2_EVENT_EOS 2 -#define V4L2_EVENT_PRIVATE_START 0x08000000 - -/* Payload for V4L2_EVENT_VSYNC */ -struct <link linkend="v4l2-event-vsync">v4l2_event_vsync</link> { - /* Can be V4L2_FIELD_ANY, _NONE, _TOP or _BOTTOM */ - __u8 field; -} __attribute__ ((packed)); - -struct <link linkend="v4l2-event">v4l2_event</link> { - __u32 type; - union { - struct <link linkend="v4l2-event-vsync">v4l2_event_vsync</link> vsync; - __u8 data[64]; - } u; - __u32 pending; - __u32 sequence; - struct timespec timestamp; - __u32 reserved[9]; -}; - -struct <link linkend="v4l2-event-subscription">v4l2_event_subscription</link> { - __u32 type; - __u32 reserved[7]; -}; - -/* - * A D V A N C E D D E B U G G I N G - * - * NOTE: EXPERIMENTAL API, NEVER RELY ON THIS IN APPLICATIONS! - * FOR DEBUGGING, TESTING AND INTERNAL USE ONLY! - */ - -/* VIDIOC_DBG_G_REGISTER and VIDIOC_DBG_S_REGISTER */ - -#define V4L2_CHIP_MATCH_HOST 0 /* Match against chip ID on host (0 for the host) */ -#define V4L2_CHIP_MATCH_I2C_DRIVER 1 /* Match against I2C driver name */ -#define V4L2_CHIP_MATCH_I2C_ADDR 2 /* Match against I2C 7-bit address */ -#define V4L2_CHIP_MATCH_AC97 3 /* Match against anciliary AC97 chip */ - -struct <link linkend="v4l2-dbg-match">v4l2_dbg_match</link> { - __u32 type; /* Match type */ - union { /* Match this chip, meaning determined by type */ - __u32 addr; - char name[32]; - }; -} __attribute__ ((packed)); - -struct <link linkend="v4l2-dbg-register">v4l2_dbg_register</link> { - struct <link linkend="v4l2-dbg-match">v4l2_dbg_match</link> match; - __u32 size; /* register size in bytes */ - __u64 reg; - __u64 val; -} __attribute__ ((packed)); - -/* VIDIOC_DBG_G_CHIP_IDENT */ -struct <link linkend="v4l2-dbg-chip-ident">v4l2_dbg_chip_ident</link> { - struct <link linkend="v4l2-dbg-match">v4l2_dbg_match</link> match; - __u32 ident; /* chip identifier as specified in <media/v4l2-chip-ident.h> */ - __u32 revision; /* chip revision, chip specific */ -} __attribute__ ((packed)); - -/* - * I O C T L C O D E S F O R V I D E O D E V I C E S - * - */ -#define VIDIOC_QUERYCAP _IOR('V', 0, struct <link linkend="v4l2-capability">v4l2_capability</link>) -#define VIDIOC_RESERVED _IO('V', 1) -#define VIDIOC_ENUM_FMT _IOWR('V', 2, struct <link linkend="v4l2-fmtdesc">v4l2_fmtdesc</link>) -#define VIDIOC_G_FMT _IOWR('V', 4, struct <link linkend="v4l2-format">v4l2_format</link>) -#define VIDIOC_S_FMT _IOWR('V', 5, struct <link linkend="v4l2-format">v4l2_format</link>) -#define VIDIOC_REQBUFS _IOWR('V', 8, struct <link linkend="v4l2-requestbuffers">v4l2_requestbuffers</link>) -#define VIDIOC_QUERYBUF _IOWR('V', 9, struct <link linkend="v4l2-buffer">v4l2_buffer</link>) -#define VIDIOC_G_FBUF _IOR('V', 10, struct <link linkend="v4l2-framebuffer">v4l2_framebuffer</link>) -#define VIDIOC_S_FBUF _IOW('V', 11, struct <link linkend="v4l2-framebuffer">v4l2_framebuffer</link>) -#define VIDIOC_OVERLAY _IOW('V', 14, int) -#define VIDIOC_QBUF _IOWR('V', 15, struct <link linkend="v4l2-buffer">v4l2_buffer</link>) -#define VIDIOC_DQBUF _IOWR('V', 17, struct <link linkend="v4l2-buffer">v4l2_buffer</link>) -#define VIDIOC_STREAMON _IOW('V', 18, int) -#define VIDIOC_STREAMOFF _IOW('V', 19, int) -#define VIDIOC_G_PARM _IOWR('V', 21, struct <link linkend="v4l2-streamparm">v4l2_streamparm</link>) -#define VIDIOC_S_PARM _IOWR('V', 22, struct <link linkend="v4l2-streamparm">v4l2_streamparm</link>) -#define VIDIOC_G_STD _IOR('V', 23, v4l2_std_id) -#define VIDIOC_S_STD _IOW('V', 24, v4l2_std_id) -#define VIDIOC_ENUMSTD _IOWR('V', 25, struct <link linkend="v4l2-standard">v4l2_standard</link>) -#define VIDIOC_ENUMINPUT _IOWR('V', 26, struct <link linkend="v4l2-input">v4l2_input</link>) -#define VIDIOC_G_CTRL _IOWR('V', 27, struct <link linkend="v4l2-control">v4l2_control</link>) -#define VIDIOC_S_CTRL _IOWR('V', 28, struct <link linkend="v4l2-control">v4l2_control</link>) -#define VIDIOC_G_TUNER _IOWR('V', 29, struct <link linkend="v4l2-tuner">v4l2_tuner</link>) -#define VIDIOC_S_TUNER _IOW('V', 30, struct <link linkend="v4l2-tuner">v4l2_tuner</link>) -#define VIDIOC_G_AUDIO _IOR('V', 33, struct <link linkend="v4l2-audio">v4l2_audio</link>) -#define VIDIOC_S_AUDIO _IOW('V', 34, struct <link linkend="v4l2-audio">v4l2_audio</link>) -#define VIDIOC_QUERYCTRL _IOWR('V', 36, struct <link linkend="v4l2-queryctrl">v4l2_queryctrl</link>) -#define VIDIOC_QUERYMENU _IOWR('V', 37, struct <link linkend="v4l2-querymenu">v4l2_querymenu</link>) -#define VIDIOC_G_INPUT _IOR('V', 38, int) -#define VIDIOC_S_INPUT _IOWR('V', 39, int) -#define VIDIOC_G_OUTPUT _IOR('V', 46, int) -#define VIDIOC_S_OUTPUT _IOWR('V', 47, int) -#define VIDIOC_ENUMOUTPUT _IOWR('V', 48, struct <link linkend="v4l2-output">v4l2_output</link>) -#define VIDIOC_G_AUDOUT _IOR('V', 49, struct <link linkend="v4l2-audioout">v4l2_audioout</link>) -#define VIDIOC_S_AUDOUT _IOW('V', 50, struct <link linkend="v4l2-audioout">v4l2_audioout</link>) -#define VIDIOC_G_MODULATOR _IOWR('V', 54, struct <link linkend="v4l2-modulator">v4l2_modulator</link>) -#define VIDIOC_S_MODULATOR _IOW('V', 55, struct <link linkend="v4l2-modulator">v4l2_modulator</link>) -#define VIDIOC_G_FREQUENCY _IOWR('V', 56, struct <link linkend="v4l2-frequency">v4l2_frequency</link>) -#define VIDIOC_S_FREQUENCY _IOW('V', 57, struct <link linkend="v4l2-frequency">v4l2_frequency</link>) -#define VIDIOC_CROPCAP _IOWR('V', 58, struct <link linkend="v4l2-cropcap">v4l2_cropcap</link>) -#define VIDIOC_G_CROP _IOWR('V', 59, struct <link linkend="v4l2-crop">v4l2_crop</link>) -#define VIDIOC_S_CROP _IOW('V', 60, struct <link linkend="v4l2-crop">v4l2_crop</link>) -#define VIDIOC_G_JPEGCOMP _IOR('V', 61, struct <link linkend="v4l2-jpegcompression">v4l2_jpegcompression</link>) -#define VIDIOC_S_JPEGCOMP _IOW('V', 62, struct <link linkend="v4l2-jpegcompression">v4l2_jpegcompression</link>) -#define VIDIOC_QUERYSTD _IOR('V', 63, v4l2_std_id) -#define VIDIOC_TRY_FMT _IOWR('V', 64, struct <link linkend="v4l2-format">v4l2_format</link>) -#define VIDIOC_ENUMAUDIO _IOWR('V', 65, struct <link linkend="v4l2-audio">v4l2_audio</link>) -#define VIDIOC_ENUMAUDOUT _IOWR('V', 66, struct <link linkend="v4l2-audioout">v4l2_audioout</link>) -#define VIDIOC_G_PRIORITY _IOR('V', 67, enum <link linkend="v4l2-priority">v4l2_priority</link>) -#define VIDIOC_S_PRIORITY _IOW('V', 68, enum <link linkend="v4l2-priority">v4l2_priority</link>) -#define VIDIOC_G_SLICED_VBI_CAP _IOWR('V', 69, struct <link linkend="v4l2-sliced-vbi-cap">v4l2_sliced_vbi_cap</link>) -#define VIDIOC_LOG_STATUS _IO('V', 70) -#define VIDIOC_G_EXT_CTRLS _IOWR('V', 71, struct <link linkend="v4l2-ext-controls">v4l2_ext_controls</link>) -#define VIDIOC_S_EXT_CTRLS _IOWR('V', 72, struct <link linkend="v4l2-ext-controls">v4l2_ext_controls</link>) -#define VIDIOC_TRY_EXT_CTRLS _IOWR('V', 73, struct <link linkend="v4l2-ext-controls">v4l2_ext_controls</link>) -#if 1 -#define VIDIOC_ENUM_FRAMESIZES _IOWR('V', 74, struct <link linkend="v4l2-frmsizeenum">v4l2_frmsizeenum</link>) -#define VIDIOC_ENUM_FRAMEINTERVALS _IOWR('V', 75, struct <link linkend="v4l2-frmivalenum">v4l2_frmivalenum</link>) -#define VIDIOC_G_ENC_INDEX _IOR('V', 76, struct <link linkend="v4l2-enc-idx">v4l2_enc_idx</link>) -#define VIDIOC_ENCODER_CMD _IOWR('V', 77, struct <link linkend="v4l2-encoder-cmd">v4l2_encoder_cmd</link>) -#define VIDIOC_TRY_ENCODER_CMD _IOWR('V', 78, struct <link linkend="v4l2-encoder-cmd">v4l2_encoder_cmd</link>) -#endif - -#if 1 -/* Experimental, meant for debugging, testing and internal use. - Only implemented if CONFIG_VIDEO_ADV_DEBUG is defined. - You must be root to use these ioctls. Never use these in applications! */ -#define VIDIOC_DBG_S_REGISTER _IOW('V', 79, struct <link linkend="v4l2-dbg-register">v4l2_dbg_register</link>) -#define VIDIOC_DBG_G_REGISTER _IOWR('V', 80, struct <link linkend="v4l2-dbg-register">v4l2_dbg_register</link>) - -/* Experimental, meant for debugging, testing and internal use. - Never use this ioctl in applications! */ -#define VIDIOC_DBG_G_CHIP_IDENT _IOWR('V', 81, struct <link linkend="v4l2-dbg-chip-ident">v4l2_dbg_chip_ident</link>) -#endif - -#define VIDIOC_S_HW_FREQ_SEEK _IOW('V', 82, struct <link linkend="v4l2-hw-freq-seek">v4l2_hw_freq_seek</link>) -#define VIDIOC_ENUM_DV_PRESETS _IOWR('V', 83, struct <link linkend="v4l2-dv-enum-preset">v4l2_dv_enum_preset</link>) -#define VIDIOC_S_DV_PRESET _IOWR('V', 84, struct <link linkend="v4l2-dv-preset">v4l2_dv_preset</link>) -#define VIDIOC_G_DV_PRESET _IOWR('V', 85, struct <link linkend="v4l2-dv-preset">v4l2_dv_preset</link>) -#define VIDIOC_QUERY_DV_PRESET _IOR('V', 86, struct <link linkend="v4l2-dv-preset">v4l2_dv_preset</link>) -#define VIDIOC_S_DV_TIMINGS _IOWR('V', 87, struct <link linkend="v4l2-dv-timings">v4l2_dv_timings</link>) -#define VIDIOC_G_DV_TIMINGS _IOWR('V', 88, struct <link linkend="v4l2-dv-timings">v4l2_dv_timings</link>) -#define VIDIOC_DQEVENT _IOR('V', 89, struct <link linkend="v4l2-event">v4l2_event</link>) -#define VIDIOC_SUBSCRIBE_EVENT _IOW('V', 90, struct <link linkend="v4l2-event-subscription">v4l2_event_subscription</link>) -#define VIDIOC_UNSUBSCRIBE_EVENT _IOW('V', 91, struct <link linkend="v4l2-event-subscription">v4l2_event_subscription</link>) - -/* Reminder: when adding new ioctls please add support for them to - drivers/media/video/v4l2-compat-ioctl32.c as well! */ - -#define BASE_VIDIOC_PRIVATE 192 /* 192-255 are private */ - -#endif /* __LINUX_VIDEODEV2_H */ -</programlisting> diff --git a/Documentation/DocBook/v4l/vidioc-subscribe-event.xml b/Documentation/DocBook/v4l/vidioc-subscribe-event.xml deleted file mode 100644 index 8b501791aa6..00000000000 --- a/Documentation/DocBook/v4l/vidioc-subscribe-event.xml +++ /dev/null @@ -1,133 +0,0 @@ -<refentry id="vidioc-subscribe-event"> - <refmeta> - <refentrytitle>ioctl VIDIOC_SUBSCRIBE_EVENT, VIDIOC_UNSUBSCRIBE_EVENT</refentrytitle> - &manvol; - </refmeta> - - <refnamediv> - <refname>VIDIOC_SUBSCRIBE_EVENT, VIDIOC_UNSUBSCRIBE_EVENT</refname> - <refpurpose>Subscribe or unsubscribe event</refpurpose> - </refnamediv> - - <refsynopsisdiv> - <funcsynopsis> - <funcprototype> - <funcdef>int <function>ioctl</function></funcdef> - <paramdef>int <parameter>fd</parameter></paramdef> - <paramdef>int <parameter>request</parameter></paramdef> - <paramdef>struct v4l2_event_subscription -*<parameter>argp</parameter></paramdef> - </funcprototype> - </funcsynopsis> - </refsynopsisdiv> - - <refsect1> - <title>Arguments</title> - - <variablelist> - <varlistentry> - <term><parameter>fd</parameter></term> - <listitem> - <para>&fd;</para> - </listitem> - </varlistentry> - <varlistentry> - <term><parameter>request</parameter></term> - <listitem> - <para>VIDIOC_SUBSCRIBE_EVENT, VIDIOC_UNSUBSCRIBE_EVENT</para> - </listitem> - </varlistentry> - <varlistentry> - <term><parameter>argp</parameter></term> - <listitem> - <para></para> - </listitem> - </varlistentry> - </variablelist> - </refsect1> - - <refsect1> - <title>Description</title> - - <para>Subscribe or unsubscribe V4L2 event. Subscribed events are - dequeued by using the &VIDIOC-DQEVENT; ioctl.</para> - - <table frame="none" pgwide="1" id="v4l2-event-subscription"> - <title>struct <structname>v4l2_event_subscription</structname></title> - <tgroup cols="3"> - &cs-str; - <tbody valign="top"> - <row> - <entry>__u32</entry> - <entry><structfield>type</structfield></entry> - <entry>Type of the event.</entry> - </row> - <row> - <entry>__u32</entry> - <entry><structfield>reserved</structfield>[7]</entry> - <entry>Reserved for future extensions. Drivers and applications - must set the array to zero.</entry> - </row> - </tbody> - </tgroup> - </table> - - <table frame="none" pgwide="1" id="event-type"> - <title>Event Types</title> - <tgroup cols="3"> - &cs-def; - <tbody valign="top"> - <row> - <entry><constant>V4L2_EVENT_ALL</constant></entry> - <entry>0</entry> - <entry>All events. V4L2_EVENT_ALL is valid only for - VIDIOC_UNSUBSCRIBE_EVENT for unsubscribing all events at once. - </entry> - </row> - <row> - <entry><constant>V4L2_EVENT_VSYNC</constant></entry> - <entry>1</entry> - <entry>This event is triggered on the vertical sync. - This event has &v4l2-event-vsync; associated with it. - </entry> - </row> - <row> - <entry><constant>V4L2_EVENT_EOS</constant></entry> - <entry>2</entry> - <entry>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. - </entry> - </row> - <row> - <entry><constant>V4L2_EVENT_PRIVATE_START</constant></entry> - <entry>0x08000000</entry> - <entry>Base event number for driver-private events.</entry> - </row> - </tbody> - </tgroup> - </table> - - <table frame="none" pgwide="1" id="v4l2-event-vsync"> - <title>struct <structname>v4l2_event_vsync</structname></title> - <tgroup cols="3"> - &cs-str; - <tbody valign="top"> - <row> - <entry>__u8</entry> - <entry><structfield>field</structfield></entry> - <entry>The upcoming field. See &v4l2-field;.</entry> - </row> - </tbody> - </tgroup> - </table> - - </refsect1> -</refentry> -<!-- -Local Variables: -mode: sgml -sgml-parent-document: "v4l2.sgml" -indent-tabs-mode: nil -End: ---> diff --git a/Documentation/PCI/MSI-HOWTO.txt b/Documentation/PCI/MSI-HOWTO.txt index 3f5e0b09bed..53e6fca146d 100644 --- a/Documentation/PCI/MSI-HOWTO.txt +++ b/Documentation/PCI/MSI-HOWTO.txt @@ -45,7 +45,7 @@ arrived in memory (this becomes more likely with devices behind PCI-PCI bridges). In order to ensure that all the data has arrived in memory, the interrupt handler must read a register on the device which raised the interrupt. PCI transaction ordering rules require that all the data -arrives in memory before the value can be returned from the register. +arrive in memory before the value may be returned from the register. Using MSIs avoids this problem as the interrupt-generating write cannot pass the data writes, so by the time the interrupt is raised, the driver knows that all the data has arrived in memory. @@ -86,13 +86,13 @@ device. int pci_enable_msi(struct pci_dev *dev) -A successful call will allocate ONE interrupt to the device, regardless -of how many MSIs the device supports. The device will be switched from +A successful call allocates ONE interrupt to the device, regardless +of how many MSIs the device supports. The device is switched from pin-based interrupt mode to MSI mode. The dev->irq number is changed -to a new number which represents the message signaled interrupt. -This function should be called before the driver calls request_irq() -since enabling MSIs disables the pin-based IRQ and the driver will not -receive interrupts on the old interrupt. +to a new number which represents the message signaled interrupt; +consequently, this function should be called before the driver calls +request_irq(), because an MSI is delivered via a vector that is +different from the vector of a pin-based interrupt. 4.2.2 pci_enable_msi_block @@ -111,20 +111,20 @@ the device are in the range dev->irq to dev->irq + count - 1. If this function returns a negative number, it indicates an error and the driver should not attempt to request any more MSI interrupts for -this device. If this function returns a positive number, it will be -less than 'count' and indicate the number of interrupts that could have -been allocated. In neither case will the irq value have been -updated, nor will the device have been switched into MSI mode. +this device. If this function returns a positive number, it is +less than 'count' and indicates the number of interrupts that could have +been allocated. In neither case is the irq value updated or the device +switched into MSI mode. The device driver must decide what action to take if -pci_enable_msi_block() returns a value less than the number asked for. -Some devices can make use of fewer interrupts than the maximum they -request; in this case the driver should call pci_enable_msi_block() +pci_enable_msi_block() returns a value less than the number requested. +For instance, the driver could still make use of fewer interrupts; +in this case the driver should call pci_enable_msi_block() again. Note that it is not guaranteed to succeed, even when the 'count' has been reduced to the value returned from a previous call to pci_enable_msi_block(). This is because there are multiple constraints on the number of vectors that can be allocated; pci_enable_msi_block() -will return as soon as it finds any constraint that doesn't allow the +returns as soon as it finds any constraint that doesn't allow the call to succeed. 4.2.3 pci_disable_msi @@ -137,10 +137,10 @@ interrupt number and frees the previously allocated message signaled interrupt(s). The interrupt may subsequently be assigned to another device, so drivers should not cache the value of dev->irq. -A device driver must always call free_irq() on the interrupt(s) -for which it has called request_irq() before calling this function. -Failure to do so will result in a BUG_ON(), the device will be left with -MSI enabled and will leak its vector. +Before calling this function, a device driver must always call free_irq() +on any interrupt for which it previously called request_irq(). +Failure to do so results in a BUG_ON(), leaving the device with +MSI enabled and thus leaking its vector. 4.3 Using MSI-X @@ -155,10 +155,10 @@ struct msix_entry { }; This allows for the device to use these interrupts in a sparse fashion; -for example it could use interrupts 3 and 1027 and allocate only a +for example, it could use interrupts 3 and 1027 and yet allocate only a two-element array. The driver is expected to fill in the 'entry' value -in each element of the array to indicate which entries it wants the kernel -to assign interrupts for. It is invalid to fill in two entries with the +in each element of the array to indicate for which entries the kernel +should assign interrupts; it is invalid to fill in two entries with the same number. 4.3.1 pci_enable_msix @@ -168,10 +168,11 @@ int pci_enable_msix(struct pci_dev *dev, struct msix_entry *entries, int nvec) Calling this function asks the PCI subsystem to allocate 'nvec' MSIs. The 'entries' argument is a pointer to an array of msix_entry structs which should be at least 'nvec' entries in size. On success, the -function will return 0 and the device will have been switched into -MSI-X interrupt mode. The 'vector' elements in each entry will have -been filled in with the interrupt number. The driver should then call -request_irq() for each 'vector' that it decides to use. +device is switched into MSI-X mode and the function returns 0. +The 'vector' member in each entry is populated with the interrupt number; +the driver should then call request_irq() for each 'vector' that it +decides to use. The device driver is responsible for keeping track of the +interrupts assigned to the MSI-X vectors so it can free them again later. If this function returns a negative number, it indicates an error and the driver should not attempt to allocate any more MSI-X interrupts for @@ -181,16 +182,14 @@ below. This function, in contrast with pci_enable_msi(), does not adjust dev->irq. The device will not generate interrupts for this interrupt -number once MSI-X is enabled. The device driver is responsible for -keeping track of the interrupts assigned to the MSI-X vectors so it can -free them again later. +number once MSI-X is enabled. Device drivers should normally call this function once per device during the initialization phase. -It is ideal if drivers can cope with a variable number of MSI-X interrupts, +It is ideal if drivers can cope with a variable number of MSI-X interrupts; there are many reasons why the platform may not be able to provide the -exact number a driver asks for. +exact number that a driver asks for. A request loop to achieve that might look like: @@ -212,15 +211,15 @@ static int foo_driver_enable_msix(struct foo_adapter *adapter, int nvec) void pci_disable_msix(struct pci_dev *dev) -This API should be used to undo the effect of pci_enable_msix(). It frees +This function should be used to undo the effect of pci_enable_msix(). It frees the previously allocated message signaled interrupts. The interrupts may subsequently be assigned to another device, so drivers should not cache the value of the 'vector' elements over a call to pci_disable_msix(). -A device driver must always call free_irq() on the interrupt(s) -for which it has called request_irq() before calling this function. -Failure to do so will result in a BUG_ON(), the device will be left with -MSI enabled and will leak its vector. +Before calling this function, a device driver must always call free_irq() +on any interrupt for which it previously called request_irq(). +Failure to do so results in a BUG_ON(), leaving the device with +MSI-X enabled and thus leaking its vector. 4.3.3 The MSI-X Table @@ -232,10 +231,10 @@ mask or unmask an interrupt, it should call disable_irq() / enable_irq(). 4.4 Handling devices implementing both MSI and MSI-X capabilities If a device implements both MSI and MSI-X capabilities, it can -run in either MSI mode or MSI-X mode but not both simultaneously. +run in either MSI mode or MSI-X mode, but not both simultaneously. This is a requirement of the PCI spec, and it is enforced by the PCI layer. Calling pci_enable_msi() when MSI-X is already enabled or -pci_enable_msix() when MSI is already enabled will result in an error. +pci_enable_msix() when MSI is already enabled results in an error. If a device driver wishes to switch between MSI and MSI-X at runtime, it must first quiesce the device, then switch it back to pin-interrupt mode, before calling pci_enable_msi() or pci_enable_msix() and resuming @@ -251,7 +250,7 @@ the MSI-X facilities in preference to the MSI facilities. As mentioned above, MSI-X supports any number of interrupts between 1 and 2048. In constrast, MSI is restricted to a maximum of 32 interrupts (and must be a power of two). In addition, the MSI interrupt vectors must -be allocated consecutively, so the system may not be able to allocate +be allocated consecutively, so the system might not be able to allocate as many vectors for MSI as it could for MSI-X. On some platforms, MSI interrupts must all be targeted at the same set of CPUs whereas MSI-X interrupts can all be targeted at different CPUs. @@ -281,7 +280,7 @@ disabled to enabled and back again. Using 'lspci -v' (as root) may show some devices with "MSI", "Message Signalled Interrupts" or "MSI-X" capabilities. Each of these capabilities -has an 'Enable' flag which will be followed with either "+" (enabled) +has an 'Enable' flag which is followed with either "+" (enabled) or "-" (disabled). @@ -298,7 +297,7 @@ The PCI stack provides three ways to disable MSIs: Some host chipsets simply don't support MSIs properly. If we're lucky, the manufacturer knows this and has indicated it in the ACPI -FADT table. In this case, Linux will automatically disable MSIs. +FADT table. In this case, Linux automatically disables MSIs. Some boards don't include this information in the table and so we have to detect them ourselves. The complete list of these is found near the quirk_disable_all_msi() function in drivers/pci/quirks.c. @@ -317,7 +316,7 @@ Some bridges allow you to enable MSIs by changing some bits in their PCI configuration space (especially the Hypertransport chipsets such as the nVidia nForce and Serverworks HT2000). As with host chipsets, Linux mostly knows about them and automatically enables MSIs if it can. -If you have a bridge which Linux doesn't yet know about, you can enable +If you have a bridge unknown to Linux, you can enable MSIs in configuration space using whatever method you know works, then enable MSIs on that bridge by doing: @@ -327,7 +326,7 @@ where $bridge is the PCI address of the bridge you've enabled (eg 0000:00:0e.0). To disable MSIs, echo 0 instead of 1. Changing this value should be -done with caution as it can break interrupt handling for all devices +done with caution as it could break interrupt handling for all devices below this bridge. Again, please notify linux-pci@vger.kernel.org of any bridges that need @@ -336,7 +335,7 @@ special handling. 5.3. Disabling MSIs on a single device Some devices are known to have faulty MSI implementations. Usually this -is handled in the individual device driver but occasionally it's necessary +is handled in the individual device driver, but occasionally it's necessary to handle this with a quirk. Some drivers have an option to disable use of MSI. While this is a convenient workaround for the driver author, it is not good practise, and should not be emulated. @@ -350,7 +349,7 @@ for your machine. You should also check your .config to be sure you have enabled CONFIG_PCI_MSI. Then, 'lspci -t' gives the list of bridges above a device. Reading -/sys/bus/pci/devices/*/msi_bus will tell you whether MSI are enabled (1) +/sys/bus/pci/devices/*/msi_bus will tell you whether MSIs are enabled (1) or disabled (0). If 0 is found in any of the msi_bus files belonging to bridges between the PCI root and the device, MSIs are disabled. diff --git a/Documentation/RCU/NMI-RCU.txt b/Documentation/RCU/NMI-RCU.txt index a8536cb8809..bf82851a0e5 100644 --- a/Documentation/RCU/NMI-RCU.txt +++ b/Documentation/RCU/NMI-RCU.txt @@ -5,8 +5,8 @@ Although RCU is usually used to protect read-mostly data structures, it is possible to use RCU to provide dynamic non-maskable interrupt handlers, as well as dynamic irq handlers. This document describes how to do this, drawing loosely from Zwane Mwaikambo's NMI-timer -work in "arch/i386/oprofile/nmi_timer_int.c" and in -"arch/i386/kernel/traps.c". +work in "arch/x86/oprofile/nmi_timer_int.c" and in +"arch/x86/kernel/traps.c". The relevant pieces of code are listed below, each followed by a brief explanation. diff --git a/Documentation/SubmitChecklist b/Documentation/SubmitChecklist index 7b13be41c08..dc0e33210d7 100644 --- a/Documentation/SubmitChecklist +++ b/Documentation/SubmitChecklist @@ -53,8 +53,8 @@ kernel patches. 12: Has been tested with CONFIG_PREEMPT, CONFIG_DEBUG_PREEMPT, CONFIG_DEBUG_SLAB, CONFIG_DEBUG_PAGEALLOC, CONFIG_DEBUG_MUTEXES, - CONFIG_DEBUG_SPINLOCK, CONFIG_DEBUG_ATOMIC_SLEEP all simultaneously - enabled. + CONFIG_DEBUG_SPINLOCK, CONFIG_DEBUG_ATOMIC_SLEEP, CONFIG_PROVE_RCU + and CONFIG_DEBUG_OBJECTS_RCU_HEAD all simultaneously enabled. 13: Has been build- and runtime tested with and without CONFIG_SMP and CONFIG_PREEMPT. diff --git a/Documentation/SubmittingDrivers b/Documentation/SubmittingDrivers index 319baa8b60d..36d16bbf72c 100644 --- a/Documentation/SubmittingDrivers +++ b/Documentation/SubmittingDrivers @@ -130,7 +130,7 @@ Linux kernel master tree: ftp.??.kernel.org:/pub/linux/kernel/... ?? == your country code, such as "us", "uk", "fr", etc. - http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git + http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git Linux kernel mailing list: linux-kernel@vger.kernel.org diff --git a/Documentation/SubmittingPatches b/Documentation/SubmittingPatches index 569f3532e13..4468ce24427 100644 --- a/Documentation/SubmittingPatches +++ b/Documentation/SubmittingPatches @@ -303,7 +303,7 @@ patches that are being emailed around. The sign-off is a simple line at the end of the explanation for the patch, which certifies that you wrote it or otherwise have the right to -pass it on as a open-source patch. The rules are pretty simple: if you +pass it on as an open-source patch. The rules are pretty simple: if you can certify the below: Developer's Certificate of Origin 1.1 diff --git a/Documentation/acpi/apei/einj.txt b/Documentation/acpi/apei/einj.txt index dfab71848dc..5cc699ba545 100644 --- a/Documentation/acpi/apei/einj.txt +++ b/Documentation/acpi/apei/einj.txt @@ -48,12 +48,19 @@ directory apei/einj. The following files are provided. - param1 This file is used to set the first error parameter value. Effect of parameter depends on error_type specified. For memory error, this is - physical memory address. + physical memory address. Only available if param_extension module + parameter is specified. - param2 This file is used to set the second error parameter value. Effect of parameter depends on error_type specified. For memory error, this is - physical memory address mask. + physical memory address mask. Only available if param_extension + module parameter is specified. + +Injecting parameter support is a BIOS version specific extension, that +is, it only works on some BIOS version. If you want to use it, please +make sure your BIOS version has the proper support and specify +"param_extension=y" in module parameter. For more information about EINJ, please refer to ACPI specification version 4.0, section 17.5. diff --git a/Documentation/arm/Booting b/Documentation/arm/Booting index 4e686a2ed91..a341d87d276 100644 --- a/Documentation/arm/Booting +++ b/Documentation/arm/Booting @@ -164,3 +164,8 @@ In either case, the following conditions must be met: - The boot loader is expected to call the kernel image by jumping directly to the first instruction of the kernel image. + On CPUs supporting the ARM instruction set, the entry must be + made in ARM state, even for a Thumb-2 kernel. + + On CPUs supporting only the Thumb instruction set such as + Cortex-M class CPUs, the entry must be made in Thumb state. diff --git a/Documentation/arm/SH-Mobile/zboot-rom-sdhi.txt b/Documentation/arm/SH-Mobile/zboot-rom-sdhi.txt new file mode 100644 index 00000000000..441959846e1 --- /dev/null +++ b/Documentation/arm/SH-Mobile/zboot-rom-sdhi.txt @@ -0,0 +1,42 @@ +ROM-able zImage boot from eSD +----------------------------- + +An ROM-able zImage compiled with ZBOOT_ROM_SDHI may be written to eSD and +SuperH Mobile ARM will to boot directly from the SDHI hardware block. + +This is achieved by the mask ROM loading the first portion of the image into +MERAM and then jumping to it. This portion contains loader code which +copies the entire image to SDRAM and jumps to it. From there the zImage +boot code proceeds as normal, uncompressing the image into its final +location and then jumping to it. + +This code has been tested on an mackerel board using the developer 1A eSD +boot mode which is configured using the following jumper settings. + + 8 7 6 5 4 3 2 1 + x|x|x|x| |x|x| +S4 -+-+-+-+-+-+-+- + | | | |x| | |x on + +The eSD card needs to be present in SDHI slot 1 (CN7). +As such S1 and S33 also need to be configured as per +the notes in arch/arm/mach-shmobile/board-mackerel.c. + +A partial zImage must be written to physical partition #1 (boot) +of the eSD at sector 0 in vrl4 format. A utility vrl4 is supplied to +accomplish this. + +e.g. + vrl4 < zImage | dd of=/dev/sdX bs=512 count=17 + +A full copy of _the same_ zImage should be written to physical partition #1 +(boot) of the eSD at sector 0. This should _not_ be in vrl4 format. + + vrl4 < zImage | dd of=/dev/sdX bs=512 + +Note: The commands above assume that the physical partition has been +switched. No such facility currently exists in the Linux Kernel. + +Physical partitions are described in the eSD specification. At the time of +writing they are not the same as partitions that are typically configured +using fdisk and visible through /proc/partitions diff --git a/Documentation/arm/Samsung-S3C24XX/Overview.txt b/Documentation/arm/Samsung-S3C24XX/Overview.txt index c12bfc1a00c..359587b2367 100644 --- a/Documentation/arm/Samsung-S3C24XX/Overview.txt +++ b/Documentation/arm/Samsung-S3C24XX/Overview.txt @@ -8,10 +8,13 @@ Introduction The Samsung S3C24XX range of ARM9 System-on-Chip CPUs are supported by the 's3c2410' architecture of ARM Linux. Currently the S3C2410, - S3C2412, S3C2413, S3C2416 S3C2440, S3C2442, S3C2443 and S3C2450 devices + S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443 and S3C2450 devices are supported. - Support for the S3C2400 and S3C24A0 series are in progress. + Support for the S3C2400 and S3C24A0 series was never completed and the + corresponding code has been removed after a while. If someone wishes to + revive this effort, partial support can be retrieved from earlier Linux + versions. The S3C2416 and S3C2450 devices are very similar and S3C2450 support is included under the arch/arm/mach-s3c2416 directory. Note, whilst core diff --git a/Documentation/arm/kernel_user_helpers.txt b/Documentation/arm/kernel_user_helpers.txt new file mode 100644 index 00000000000..a17df9f91d1 --- /dev/null +++ b/Documentation/arm/kernel_user_helpers.txt @@ -0,0 +1,267 @@ +Kernel-provided User Helpers +============================ + +These are segment of kernel provided user code reachable from user space +at a fixed address in kernel memory. This is used to provide user space +with some operations which require kernel help because of unimplemented +native feature and/or instructions in many ARM CPUs. The idea is for this +code to be executed directly in user mode for best efficiency but which is +too intimate with the kernel counter part to be left to user libraries. +In fact this code might even differ from one CPU to another depending on +the available instruction set, or whether it is a SMP systems. In other +words, the kernel reserves the right to change this code as needed without +warning. Only the entry points and their results as documented here are +guaranteed to be stable. + +This is different from (but doesn't preclude) a full blown VDSO +implementation, however a VDSO would prevent some assembly tricks with +constants that allows for efficient branching to those code segments. And +since those code segments only use a few cycles before returning to user +code, the overhead of a VDSO indirect far call would add a measurable +overhead to such minimalistic operations. + +User space is expected to bypass those helpers and implement those things +inline (either in the code emitted directly by the compiler, or part of +the implementation of a library call) when optimizing for a recent enough +processor that has the necessary native support, but only if resulting +binaries are already to be incompatible with earlier ARM processors due to +useage of similar native instructions for other things. In other words +don't make binaries unable to run on earlier processors just for the sake +of not using these kernel helpers if your compiled code is not going to +use new instructions for other purpose. + +New helpers may be added over time, so an older kernel may be missing some +helpers present in a newer kernel. For this reason, programs must check +the value of __kuser_helper_version (see below) before assuming that it is +safe to call any particular helper. This check should ideally be +performed only once at process startup time, and execution aborted early +if the required helpers are not provided by the kernel version that +process is running on. + +kuser_helper_version +-------------------- + +Location: 0xffff0ffc + +Reference declaration: + + extern int32_t __kuser_helper_version; + +Definition: + + This field contains the number of helpers being implemented by the + running kernel. User space may read this to determine the availability + of a particular helper. + +Usage example: + +#define __kuser_helper_version (*(int32_t *)0xffff0ffc) + +void check_kuser_version(void) +{ + if (__kuser_helper_version < 2) { + fprintf(stderr, "can't do atomic operations, kernel too old\n"); + abort(); + } +} + +Notes: + + User space may assume that the value of this field never changes + during the lifetime of any single process. This means that this + field can be read once during the initialisation of a library or + startup phase of a program. + +kuser_get_tls +------------- + +Location: 0xffff0fe0 + +Reference prototype: + + void * __kuser_get_tls(void); + +Input: + + lr = return address + +Output: + + r0 = TLS value + +Clobbered registers: + + none + +Definition: + + Get the TLS value as previously set via the __ARM_NR_set_tls syscall. + +Usage example: + +typedef void * (__kuser_get_tls_t)(void); +#define __kuser_get_tls (*(__kuser_get_tls_t *)0xffff0fe0) + +void foo() +{ + void *tls = __kuser_get_tls(); + printf("TLS = %p\n", tls); +} + +Notes: + + - Valid only if __kuser_helper_version >= 1 (from kernel version 2.6.12). + +kuser_cmpxchg +------------- + +Location: 0xffff0fc0 + +Reference prototype: + + int __kuser_cmpxchg(int32_t oldval, int32_t newval, volatile int32_t *ptr); + +Input: + + r0 = oldval + r1 = newval + r2 = ptr + lr = return address + +Output: + + r0 = success code (zero or non-zero) + C flag = set if r0 == 0, clear if r0 != 0 + +Clobbered registers: + + r3, ip, flags + +Definition: + + Atomically store newval in *ptr only if *ptr is equal to oldval. + Return zero if *ptr was changed or non-zero if no exchange happened. + The C flag is also set if *ptr was changed to allow for assembly + optimization in the calling code. + +Usage example: + +typedef int (__kuser_cmpxchg_t)(int oldval, int newval, volatile int *ptr); +#define __kuser_cmpxchg (*(__kuser_cmpxchg_t *)0xffff0fc0) + +int atomic_add(volatile int *ptr, int val) +{ + int old, new; + + do { + old = *ptr; + new = old + val; + } while(__kuser_cmpxchg(old, new, ptr)); + + return new; +} + +Notes: + + - This routine already includes memory barriers as needed. + + - Valid only if __kuser_helper_version >= 2 (from kernel version 2.6.12). + +kuser_memory_barrier +-------------------- + +Location: 0xffff0fa0 + +Reference prototype: + + void __kuser_memory_barrier(void); + +Input: + + lr = return address + +Output: + + none + +Clobbered registers: + + none + +Definition: + + Apply any needed memory barrier to preserve consistency with data modified + manually and __kuser_cmpxchg usage. + +Usage example: + +typedef void (__kuser_dmb_t)(void); +#define __kuser_dmb (*(__kuser_dmb_t *)0xffff0fa0) + +Notes: + + - Valid only if __kuser_helper_version >= 3 (from kernel version 2.6.15). + +kuser_cmpxchg64 +--------------- + +Location: 0xffff0f60 + +Reference prototype: + + int __kuser_cmpxchg64(const int64_t *oldval, + const int64_t *newval, + volatile int64_t *ptr); + +Input: + + r0 = pointer to oldval + r1 = pointer to newval + r2 = pointer to target value + lr = return address + +Output: + + r0 = success code (zero or non-zero) + C flag = set if r0 == 0, clear if r0 != 0 + +Clobbered registers: + + r3, lr, flags + +Definition: + + Atomically store the 64-bit value pointed by *newval in *ptr only if *ptr + is equal to the 64-bit value pointed by *oldval. Return zero if *ptr was + changed or non-zero if no exchange happened. + + The C flag is also set if *ptr was changed to allow for assembly + optimization in the calling code. + +Usage example: + +typedef int (__kuser_cmpxchg64_t)(const int64_t *oldval, + const int64_t *newval, + volatile int64_t *ptr); +#define __kuser_cmpxchg64 (*(__kuser_cmpxchg64_t *)0xffff0f60) + +int64_t atomic_add64(volatile int64_t *ptr, int64_t val) +{ + int64_t old, new; + + do { + old = *ptr; + new = old + val; + } while(__kuser_cmpxchg64(&old, &new, ptr)); + + return new; +} + +Notes: + + - This routine already includes memory barriers as needed. + + - Due to the length of this sequence, this spans 2 conventional kuser + "slots", therefore 0xffff0f80 is not used as a valid entry point. + + - Valid only if __kuser_helper_version >= 5 (from kernel version 3.1). diff --git a/Documentation/blackfin/bfin-spi-notes.txt b/Documentation/blackfin/bfin-spi-notes.txt index 556fa877f2e..eae6eaf2a09 100644 --- a/Documentation/blackfin/bfin-spi-notes.txt +++ b/Documentation/blackfin/bfin-spi-notes.txt @@ -9,6 +9,8 @@ the entire SPI transfer. - And not just bits_per_word duration. In most cases you can utilize SPI MODE_3 instead of MODE_0 to work-around this behavior. If your SPI slave device in question requires SPI MODE_0 or MODE_2 timing, you can utilize the GPIO controlled SPI Slave Select option instead. +In this case, you should use GPIO based CS for all of your slaves and not just +the ones using mode 0 or 2 in order to guarantee correct CS toggling behavior. You can even use the same pin whose peripheral role is a SSEL, but use it as a GPIO instead. diff --git a/Documentation/block/cfq-iosched.txt b/Documentation/block/cfq-iosched.txt index e578feed6d8..6d670f57045 100644 --- a/Documentation/block/cfq-iosched.txt +++ b/Documentation/block/cfq-iosched.txt @@ -43,3 +43,74 @@ If one sets slice_idle=0 and if storage supports NCQ, CFQ internally switches to IOPS mode and starts providing fairness in terms of number of requests dispatched. Note that this mode switching takes effect only for group scheduling. For non-cgroup users nothing should change. + +CFQ IO scheduler Idling Theory +=============================== +Idling on a queue is primarily about waiting for the next request to come +on same queue after completion of a request. In this process CFQ will not +dispatch requests from other cfq queues even if requests are pending there. + +The rationale behind idling is that it can cut down on number of seeks +on rotational media. For example, if a process is doing dependent +sequential reads (next read will come on only after completion of previous +one), then not dispatching request from other queue should help as we +did not move the disk head and kept on dispatching sequential IO from +one queue. + +CFQ has following service trees and various queues are put on these trees. + + sync-idle sync-noidle async + +All cfq queues doing synchronous sequential IO go on to sync-idle tree. +On this tree we idle on each queue individually. + +All synchronous non-sequential queues go on sync-noidle tree. Also any +request which are marked with REQ_NOIDLE go on this service tree. On this +tree we do not idle on individual queues instead idle on the whole group +of queues or the tree. So if there are 4 queues waiting for IO to dispatch +we will idle only once last queue has dispatched the IO and there is +no more IO on this service tree. + +All async writes go on async service tree. There is no idling on async +queues. + +CFQ has some optimizations for SSDs and if it detects a non-rotational +media which can support higher queue depth (multiple requests at in +flight at a time), then it cuts down on idling of individual queues and +all the queues move to sync-noidle tree and only tree idle remains. This +tree idling provides isolation with buffered write queues on async tree. + +FAQ +=== +Q1. Why to idle at all on queues marked with REQ_NOIDLE. + +A1. We only do tree idle (all queues on sync-noidle tree) on queues marked + with REQ_NOIDLE. This helps in providing isolation with all the sync-idle + queues. Otherwise in presence of many sequential readers, other + synchronous IO might not get fair share of disk. + + For example, if there are 10 sequential readers doing IO and they get + 100ms each. If a REQ_NOIDLE request comes in, it will be scheduled + roughly after 1 second. If after completion of REQ_NOIDLE request we + do not idle, and after a couple of milli seconds a another REQ_NOIDLE + request comes in, again it will be scheduled after 1second. Repeat it + and notice how a workload can lose its disk share and suffer due to + multiple sequential readers. + + fsync can generate dependent IO where bunch of data is written in the + context of fsync, and later some journaling data is written. Journaling + data comes in only after fsync has finished its IO (atleast for ext4 + that seemed to be the case). Now if one decides not to idle on fsync + thread due to REQ_NOIDLE, then next journaling write will not get + scheduled for another second. A process doing small fsync, will suffer + badly in presence of multiple sequential readers. + + Hence doing tree idling on threads using REQ_NOIDLE flag on requests + provides isolation from multiple sequential readers and at the same + time we do not idle on individual threads. + +Q2. When to specify REQ_NOIDLE +A2. I would think whenever one is doing synchronous write and not expecting + more writes to be dispatched from same context soon, should be able + to specify REQ_NOIDLE on writes and that probably should work well for + most of the cases. diff --git a/Documentation/block/queue-sysfs.txt b/Documentation/block/queue-sysfs.txt index f65274081c8..d8147b336c3 100644 --- a/Documentation/block/queue-sysfs.txt +++ b/Documentation/block/queue-sysfs.txt @@ -45,9 +45,13 @@ device. rq_affinity (RW) ---------------- -If this option is enabled, the block layer will migrate request completions -to the CPU that originally submitted the request. For some workloads -this provides a significant reduction in CPU cycles due to caching effects. +If this option is '1', the block layer will migrate request completions to the +cpu "group" that originally submitted the request. For some workloads this +provides a significant reduction in CPU cycles due to caching effects. + +For storage configurations that need to maximize distribution of completion +processing setting this option to '2' forces the completion to run on the +requesting cpu (bypassing the "group" aggregation logic). scheduler (RW) -------------- diff --git a/Documentation/blockdev/README.DAC960 b/Documentation/blockdev/README.DAC960 index 0e8f618ab53..bd85fb9dc6e 100644 --- a/Documentation/blockdev/README.DAC960 +++ b/Documentation/blockdev/README.DAC960 @@ -214,7 +214,7 @@ replacing "/usr/src" with wherever you keep your Linux kernel source tree: make config make bzImage (or zImage) -Then install "arch/i386/boot/bzImage" or "arch/i386/boot/zImage" as your +Then install "arch/x86/boot/bzImage" or "arch/x86/boot/zImage" as your standard kernel, run lilo if appropriate, and reboot. To create the necessary devices in /dev, the "make_rd" script included in diff --git a/Documentation/blockdev/ramdisk.txt b/Documentation/blockdev/ramdisk.txt index 6c820baa19a..fa72e97dd66 100644 --- a/Documentation/blockdev/ramdisk.txt +++ b/Documentation/blockdev/ramdisk.txt @@ -64,9 +64,9 @@ the RAM disk dynamically grows as data is being written into it, a size field is not required. Bits 11 to 13 are not currently used and may as well be zero. These numbers are no magical secrets, as seen below: -./arch/i386/kernel/setup.c:#define RAMDISK_IMAGE_START_MASK 0x07FF -./arch/i386/kernel/setup.c:#define RAMDISK_PROMPT_FLAG 0x8000 -./arch/i386/kernel/setup.c:#define RAMDISK_LOAD_FLAG 0x4000 +./arch/x86/kernel/setup.c:#define RAMDISK_IMAGE_START_MASK 0x07FF +./arch/x86/kernel/setup.c:#define RAMDISK_PROMPT_FLAG 0x8000 +./arch/x86/kernel/setup.c:#define RAMDISK_LOAD_FLAG 0x4000 Consider a typical two floppy disk setup, where you will have the kernel on disk one, and have already put a RAM disk image onto disk #2. @@ -85,7 +85,7 @@ The command line equivalent is: "prompt_ramdisk=1" Putting that together gives 2^15 + 2^14 + 0 = 49152 for an rdev word. So to create disk one of the set, you would do: - /usr/src/linux# cat arch/i386/boot/zImage > /dev/fd0 + /usr/src/linux# cat arch/x86/boot/zImage > /dev/fd0 /usr/src/linux# rdev /dev/fd0 /dev/fd0 /usr/src/linux# rdev -r /dev/fd0 49152 diff --git a/Documentation/cpu-freq/cpu-drivers.txt b/Documentation/cpu-freq/cpu-drivers.txt index 6c30e930c12..c436096351f 100644 --- a/Documentation/cpu-freq/cpu-drivers.txt +++ b/Documentation/cpu-freq/cpu-drivers.txt @@ -168,7 +168,7 @@ in-chipset dynamic frequency switching to policy->min, the upper limit to policy->max, and -if supported- select a performance-oriented setting when policy->policy is CPUFREQ_POLICY_PERFORMANCE, and a powersaving-oriented setting when CPUFREQ_POLICY_POWERSAVE. Also check -the reference implementation in arch/i386/kernel/cpu/cpufreq/longrun.c +the reference implementation in drivers/cpufreq/longrun.c diff --git a/Documentation/device-mapper/dm-crypt.txt b/Documentation/device-mapper/dm-crypt.txt index 6b5c42dbbe8..2c656ae43ba 100644 --- a/Documentation/device-mapper/dm-crypt.txt +++ b/Documentation/device-mapper/dm-crypt.txt @@ -4,7 +4,8 @@ dm-crypt Device-Mapper's "crypt" target provides transparent encryption of block devices using the kernel crypto API. -Parameters: <cipher> <key> <iv_offset> <device path> <offset> +Parameters: <cipher> <key> <iv_offset> <device path> \ + <offset> [<#opt_params> <opt_params>] <cipher> Encryption cipher and an optional IV generation mode. @@ -37,6 +38,24 @@ Parameters: <cipher> <key> <iv_offset> <device path> <offset> <offset> Starting sector within the device where the encrypted data begins. +<#opt_params> + Number of optional parameters. If there are no optional parameters, + the optional paramaters section can be skipped or #opt_params can be zero. + Otherwise #opt_params is the number of following arguments. + + Example of optional parameters section: + 1 allow_discards + +allow_discards + Block discard requests (a.k.a. TRIM) are passed through the crypt device. + The default is to ignore discard requests. + + WARNING: Assess the specific security risks carefully before enabling this + option. For example, allowing discards on encrypted devices may lead to + the leak of information about the ciphertext device (filesystem type, + used space etc.) if the discarded blocks can be located easily on the + device later. + Example scripts =============== LUKS (Linux Unified Key Setup) is now the preferred way to set up disk diff --git a/Documentation/device-mapper/dm-flakey.txt b/Documentation/device-mapper/dm-flakey.txt index c8efdfd19a6..6ff5c232722 100644 --- a/Documentation/device-mapper/dm-flakey.txt +++ b/Documentation/device-mapper/dm-flakey.txt @@ -1,17 +1,53 @@ dm-flakey ========= -This target is the same as the linear target except that it returns I/O -errors periodically. It's been found useful in simulating failing -devices for testing purposes. +This target is the same as the linear target except that it exhibits +unreliable behaviour periodically. It's been found useful in simulating +failing devices for testing purposes. Starting from the time the table is loaded, the device is available for -<up interval> seconds, then returns errors for <down interval> seconds, -and then this cycle repeats. +<up interval> seconds, then exhibits unreliable behaviour for <down +interval> seconds, and then this cycle repeats. -Parameters: <dev path> <offset> <up interval> <down interval> +Also, consider using this in combination with the dm-delay target too, +which can delay reads and writes and/or send them to different +underlying devices. + +Table parameters +---------------- + <dev path> <offset> <up interval> <down interval> \ + [<num_features> [<feature arguments>]] + +Mandatory parameters: <dev path>: Full pathname to the underlying block-device, or a "major:minor" device-number. <offset>: Starting sector within the device. <up interval>: Number of seconds device is available. <down interval>: Number of seconds device returns errors. + +Optional feature parameters: + If no feature parameters are present, during the periods of + unreliability, all I/O returns errors. + + drop_writes: + All write I/O is silently ignored. + Read I/O is handled correctly. + + corrupt_bio_byte <Nth_byte> <direction> <value> <flags>: + During <down interval>, replace <Nth_byte> of the data of + each matching bio with <value>. + + <Nth_byte>: The offset of the byte to replace. + Counting starts at 1, to replace the first byte. + <direction>: Either 'r' to corrupt reads or 'w' to corrupt writes. + 'w' is incompatible with drop_writes. + <value>: The value (from 0-255) to write. + <flags>: Perform the replacement only if bio->bi_rw has all the + selected flags set. + +Examples: + corrupt_bio_byte 32 r 1 0 + - replaces the 32nd byte of READ bios with the value 1 + + corrupt_bio_byte 224 w 0 32 + - replaces the 224th byte of REQ_META (=32) bios with the value 0 diff --git a/Documentation/device-mapper/dm-raid.txt b/Documentation/device-mapper/dm-raid.txt index 33b6b7071ac..2a8c11331d2 100644 --- a/Documentation/device-mapper/dm-raid.txt +++ b/Documentation/device-mapper/dm-raid.txt @@ -1,70 +1,108 @@ -Device-mapper RAID (dm-raid) is a bridge from DM to MD. It -provides a way to use device-mapper interfaces to access the MD RAID -drivers. +dm-raid +------- -As with all device-mapper targets, the nominal public interfaces are the -constructor (CTR) tables and the status outputs (both STATUSTYPE_INFO -and STATUSTYPE_TABLE). The CTR table looks like the following: +The device-mapper RAID (dm-raid) target provides a bridge from DM to MD. +It allows the MD RAID drivers to be accessed using a device-mapper +interface. -1: <s> <l> raid \ -2: <raid_type> <#raid_params> <raid_params> \ -3: <#raid_devs> <meta_dev1> <dev1> .. <meta_devN> <devN> - -Line 1 contains the standard first three arguments to any device-mapper -target - the start, length, and target type fields. The target type in -this case is "raid". - -Line 2 contains the arguments that define the particular raid -type/personality/level, the required arguments for that raid type, and -any optional arguments. Possible raid types include: raid4, raid5_la, -raid5_ls, raid5_rs, raid6_zr, raid6_nr, and raid6_nc. (raid1 is -planned for the future.) The list of required and optional parameters -is the same for all the current raid types. The required parameters are -positional, while the optional parameters are given as key/value pairs. -The possible parameters are as follows: - <chunk_size> Chunk size in sectors. - [[no]sync] Force/Prevent RAID initialization - [rebuild <idx>] Rebuild the drive indicated by the index - [daemon_sleep <ms>] Time between bitmap daemon work to clear bits - [min_recovery_rate <kB/sec/disk>] Throttle RAID initialization - [max_recovery_rate <kB/sec/disk>] Throttle RAID initialization - [max_write_behind <sectors>] See '-write-behind=' (man mdadm) - [stripe_cache <sectors>] Stripe cache size for higher RAIDs - -Line 3 contains the list of devices that compose the array in -metadata/data device pairs. If the metadata is stored separately, a '-' -is given for the metadata device position. If a drive has failed or is -missing at creation time, a '-' can be given for both the metadata and -data drives for a given position. - -NB. Currently all metadata devices must be specified as '-'. - -Examples: -# RAID4 - 4 data drives, 1 parity +The target is named "raid" and it accepts the following parameters: + + <raid_type> <#raid_params> <raid_params> \ + <#raid_devs> <metadata_dev0> <dev0> [.. <metadata_devN> <devN>] + +<raid_type>: + raid1 RAID1 mirroring + raid4 RAID4 dedicated parity disk + raid5_la RAID5 left asymmetric + - rotating parity 0 with data continuation + raid5_ra RAID5 right asymmetric + - rotating parity N with data continuation + raid5_ls RAID5 left symmetric + - rotating parity 0 with data restart + raid5_rs RAID5 right symmetric + - rotating parity N with data restart + raid6_zr RAID6 zero restart + - rotating parity zero (left-to-right) with data restart + raid6_nr RAID6 N restart + - rotating parity N (right-to-left) with data restart + raid6_nc RAID6 N continue + - rotating parity N (right-to-left) with data continuation + + Refererence: Chapter 4 of + http://www.snia.org/sites/default/files/SNIA_DDF_Technical_Position_v2.0.pdf + +<#raid_params>: The number of parameters that follow. + +<raid_params> consists of + Mandatory parameters: + <chunk_size>: Chunk size in sectors. This parameter is often known as + "stripe size". It is the only mandatory parameter and + is placed first. + + followed by optional parameters (in any order): + [sync|nosync] Force or prevent RAID initialization. + + [rebuild <idx>] Rebuild drive number idx (first drive is 0). + + [daemon_sleep <ms>] + Interval between runs of the bitmap daemon that + clear bits. A longer interval means less bitmap I/O but + resyncing after a failure is likely to take longer. + + [min_recovery_rate <kB/sec/disk>] Throttle RAID initialization + [max_recovery_rate <kB/sec/disk>] Throttle RAID initialization + [write_mostly <idx>] Drive index is write-mostly + [max_write_behind <sectors>] See '-write-behind=' (man mdadm) + [stripe_cache <sectors>] Stripe cache size (higher RAIDs only) + [region_size <sectors>] + The region_size multiplied by the number of regions is the + logical size of the array. The bitmap records the device + synchronisation state for each region. + +<#raid_devs>: The number of devices composing the array. + Each device consists of two entries. The first is the device + containing the metadata (if any); the second is the one containing the + data. + + If a drive has failed or is missing at creation time, a '-' can be + given for both the metadata and data drives for a given position. + + +Example tables +-------------- +# RAID4 - 4 data drives, 1 parity (no metadata devices) # No metadata devices specified to hold superblock/bitmap info # Chunk size of 1MiB # (Lines separated for easy reading) + 0 1960893648 raid \ raid4 1 2048 \ 5 - 8:17 - 8:33 - 8:49 - 8:65 - 8:81 -# RAID4 - 4 data drives, 1 parity (no metadata devices) +# RAID4 - 4 data drives, 1 parity (with metadata devices) # Chunk size of 1MiB, force RAID initialization, # min recovery rate at 20 kiB/sec/disk + 0 1960893648 raid \ - raid4 4 2048 min_recovery_rate 20 sync\ - 5 - 8:17 - 8:33 - 8:49 - 8:65 - 8:81 + raid4 4 2048 sync min_recovery_rate 20 \ + 5 8:17 8:18 8:33 8:34 8:49 8:50 8:65 8:66 8:81 8:82 -Performing a 'dmsetup table' should display the CTR table used to -construct the mapping (with possible reordering of optional -parameters). +'dmsetup table' displays the table used to construct the mapping. +The optional parameters are always printed in the order listed +above with "sync" or "nosync" always output ahead of the other +arguments, regardless of the order used when originally loading the table. +Arguments that can be repeated are ordered by value. -Performing a 'dmsetup status' will yield information on the state and -health of the array. The output is as follows: +'dmsetup status' yields information on the state and health of the +array. +The output is as follows: 1: <s> <l> raid \ 2: <raid_type> <#devices> <1 health char for each dev> <resync_ratio> -Line 1 is standard DM output. Line 2 is best shown by example: +Line 1 is the standard output produced by device-mapper. +Line 2 is produced by the raid target, and best explained by example: 0 1960893648 raid raid4 5 AAAAA 2/490221568 Here we can see the RAID type is raid4, there are 5 devices - all of which are 'A'live, and the array is 2/490221568 complete with recovery. +Faulty or missing devices are marked 'D'. Devices that are out-of-sync +are marked 'a'. diff --git a/Documentation/devicetree/bindings/arm/arm-boards b/Documentation/devicetree/bindings/arm/arm-boards new file mode 100644 index 00000000000..91f26148af7 --- /dev/null +++ b/Documentation/devicetree/bindings/arm/arm-boards @@ -0,0 +1,20 @@ +ARM Versatile Application and Platform Baseboards +------------------------------------------------- +ARM's development hardware platform with connectors for customizable +core tiles. The hardware configuration of the Versatile boards is +highly customizable. + +Required properties (in root node): + compatible = "arm,versatile-ab"; /* Application baseboard */ + compatible = "arm,versatile-pb"; /* Platform baseboard */ + +Interrupt controllers: +- VIC required properties: + compatible = "arm,versatile-vic"; + interrupt-controller; + #interrupt-cells = <1>; + +- SIC required properties: + compatible = "arm,versatile-sic"; + interrupt-controller; + #interrupt-cells = <1>; diff --git a/Documentation/devicetree/bindings/arm/pmu.txt b/Documentation/devicetree/bindings/arm/pmu.txt new file mode 100644 index 00000000000..1c044eb320c --- /dev/null +++ b/Documentation/devicetree/bindings/arm/pmu.txt @@ -0,0 +1,21 @@ +* ARM Performance Monitor Units + +ARM cores often have a PMU for counting cpu and cache events like cache misses +and hits. The interface to the PMU is part of the ARM ARM. The ARM PMU +representation in the device tree should be done as under:- + +Required properties: + +- compatible : should be one of + "arm,cortex-a9-pmu" + "arm,cortex-a8-pmu" + "arm,arm1176-pmu" + "arm,arm1136-pmu" +- interrupts : 1 combined interrupt or 1 per core. + +Example: + +pmu { + compatible = "arm,cortex-a9-pmu"; + interrupts = <100 101>; +}; diff --git a/Documentation/devicetree/bindings/arm/sirf.txt b/Documentation/devicetree/bindings/arm/sirf.txt new file mode 100644 index 00000000000..6b07f65b32d --- /dev/null +++ b/Documentation/devicetree/bindings/arm/sirf.txt @@ -0,0 +1,3 @@ +prima2 "cb" evalutation board +Required root node properties: + - compatible = "sirf,prima2-cb", "sirf,prima2"; diff --git a/Documentation/devicetree/bindings/arm/xilinx.txt b/Documentation/devicetree/bindings/arm/xilinx.txt new file mode 100644 index 00000000000..6f1ed830b4f --- /dev/null +++ b/Documentation/devicetree/bindings/arm/xilinx.txt @@ -0,0 +1,7 @@ +Xilinx Zynq EP107 Emulation Platform board + +This board is an emulation platform for the Zynq product which is +based on an ARM Cortex A9 processor. + +Required root node properties: + - compatible = "xlnx,zynq-ep107"; diff --git a/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt new file mode 100644 index 00000000000..d1e3f443e20 --- /dev/null +++ b/Documentation/devicetree/bindings/dma/fsl-imx-sdma.txt @@ -0,0 +1,17 @@ +* Freescale Smart Direct Memory Access (SDMA) Controller for i.MX + +Required properties: +- compatible : Should be "fsl,<chip>-sdma" +- reg : Should contain SDMA registers location and length +- interrupts : Should contain SDMA interrupt +- fsl,sdma-ram-script-name : Should contain the full path of SDMA RAM + scripts firmware + +Examples: + +sdma@83fb0000 { + compatible = "fsl,imx51-sdma", "fsl,imx35-sdma"; + reg = <0x83fb0000 0x4000>; + interrupts = <6>; + fsl,sdma-ram-script-name = "sdma-imx51.bin"; +}; diff --git a/Documentation/devicetree/bindings/gpio/gpio_keys.txt b/Documentation/devicetree/bindings/gpio/gpio_keys.txt new file mode 100644 index 00000000000..5c2c02140a6 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/gpio_keys.txt @@ -0,0 +1,36 @@ +Device-Tree bindings for input/gpio_keys.c keyboard driver + +Required properties: + - compatible = "gpio-keys"; + +Optional properties: + - autorepeat: Boolean, Enable auto repeat feature of Linux input + subsystem. + +Each button (key) is represented as a sub-node of "gpio-keys": +Subnode properties: + + - gpios: OF device-tree gpio specification. + - label: Descriptive name of the key. + - linux,code: Keycode to emit. + +Optional subnode-properties: + - linux,input-type: Specify event type this button/key generates. + If not specified defaults to <1> == EV_KEY. + - debounce-interval: Debouncing interval time in milliseconds. + If not specified defaults to 5. + - gpio-key,wakeup: Boolean, button can wake-up the system. + +Example nodes: + + gpio_keys { + compatible = "gpio-keys"; + #address-cells = <1>; + #size-cells = <0>; + autorepeat; + button@21 { + label = "GPIO Key UP"; + linux,code = <103>; + gpios = <&gpio1 0 1>; + }; + ... diff --git a/Documentation/devicetree/bindings/i2c/arm-versatile.txt b/Documentation/devicetree/bindings/i2c/arm-versatile.txt new file mode 100644 index 00000000000..361d31c51b6 --- /dev/null +++ b/Documentation/devicetree/bindings/i2c/arm-versatile.txt @@ -0,0 +1,10 @@ +i2c Controller on ARM Versatile platform: + +Required properties: +- compatible : Must be "arm,versatile-i2c"; +- reg +- #address-cells = <1>; +- #size-cells = <0>; + +Optional properties: +- Child nodes conforming to i2c bus binding diff --git a/Documentation/devicetree/bindings/input/fsl-mma8450.txt b/Documentation/devicetree/bindings/input/fsl-mma8450.txt new file mode 100644 index 00000000000..a00c94ccbde --- /dev/null +++ b/Documentation/devicetree/bindings/input/fsl-mma8450.txt @@ -0,0 +1,11 @@ +* Freescale MMA8450 3-Axis Accelerometer + +Required properties: +- compatible : "fsl,mma8450". + +Example: + +accelerometer: mma8450@1c { + compatible = "fsl,mma8450"; + reg = <0x1c>; +}; diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt new file mode 100644 index 00000000000..ab22fe6e73a --- /dev/null +++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt @@ -0,0 +1,34 @@ +* Freescale Enhanced Secure Digital Host Controller (eSDHC) for i.MX + +The Enhanced Secure Digital Host Controller on Freescale i.MX family +provides an interface for MMC, SD, and SDIO types of memory cards. + +Required properties: +- compatible : Should be "fsl,<chip>-esdhc" +- reg : Should contain eSDHC registers location and length +- interrupts : Should contain eSDHC interrupt + +Optional properties: +- fsl,card-wired : Indicate the card is wired to host permanently +- fsl,cd-internal : Indicate to use controller internal card detection +- fsl,wp-internal : Indicate to use controller internal write protection +- cd-gpios : Specify GPIOs for card detection +- wp-gpios : Specify GPIOs for write protection + +Examples: + +esdhc@70004000 { + compatible = "fsl,imx51-esdhc"; + reg = <0x70004000 0x4000>; + interrupts = <1>; + fsl,cd-internal; + fsl,wp-internal; +}; + +esdhc@70008000 { + compatible = "fsl,imx51-esdhc"; + reg = <0x70008000 0x4000>; + interrupts = <2>; + cd-gpios = <&gpio0 6 0>; /* GPIO1_6 */ + wp-gpios = <&gpio0 5 0>; /* GPIO1_5 */ +}; diff --git a/Documentation/devicetree/bindings/mtd/arm-versatile.txt b/Documentation/devicetree/bindings/mtd/arm-versatile.txt new file mode 100644 index 00000000000..476845db94d --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/arm-versatile.txt @@ -0,0 +1,8 @@ +Flash device on ARM Versatile board + +Required properties: +- compatible : must be "arm,versatile-flash"; +- bank-width : width in bytes of flash interface. + +Optional properties: +- Subnode partition map from mtd flash binding diff --git a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt index 1a729f08986..1a729f08986 100755..100644 --- a/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt +++ b/Documentation/devicetree/bindings/net/can/fsl-flexcan.txt diff --git a/Documentation/devicetree/bindings/net/fsl-fec.txt b/Documentation/devicetree/bindings/net/fsl-fec.txt new file mode 100644 index 00000000000..de439517dff --- /dev/null +++ b/Documentation/devicetree/bindings/net/fsl-fec.txt @@ -0,0 +1,24 @@ +* Freescale Fast Ethernet Controller (FEC) + +Required properties: +- compatible : Should be "fsl,<soc>-fec" +- reg : Address and length of the register set for the device +- interrupts : Should contain fec interrupt +- phy-mode : String, operation mode of the PHY interface. + Supported values are: "mii", "gmii", "sgmii", "tbi", "rmii", + "rgmii", "rgmii-id", "rgmii-rxid", "rgmii-txid", "rtbi", "smii". +- phy-reset-gpios : Should specify the gpio for phy reset + +Optional properties: +- local-mac-address : 6 bytes, mac address + +Example: + +fec@83fec000 { + compatible = "fsl,imx51-fec", "fsl,imx27-fec"; + reg = <0x83fec000 0x4000>; + interrupts = <87>; + phy-mode = "mii"; + phy-reset-gpios = <&gpio1 14 0>; /* GPIO2_14 */ + local-mac-address = [00 04 9F 01 1B B9]; +}; diff --git a/Documentation/devicetree/bindings/net/smsc-lan91c111.txt b/Documentation/devicetree/bindings/net/smsc-lan91c111.txt new file mode 100644 index 00000000000..953049b4248 --- /dev/null +++ b/Documentation/devicetree/bindings/net/smsc-lan91c111.txt @@ -0,0 +1,10 @@ +SMSC LAN91c111 Ethernet mac + +Required properties: +- compatible = "smsc,lan91c111"; +- reg : physical address and size of registers +- interrupts : interrupt connection + +Optional properties: +- phy-device : phandle to Ethernet phy +- local-mac-address : Ethernet mac address to use diff --git a/Documentation/devicetree/bindings/rtc/olpc-xo1-rtc.txt b/Documentation/devicetree/bindings/rtc/olpc-xo1-rtc.txt new file mode 100644 index 00000000000..a2891ceb634 --- /dev/null +++ b/Documentation/devicetree/bindings/rtc/olpc-xo1-rtc.txt @@ -0,0 +1,5 @@ +OLPC XO-1 RTC +~~~~~~~~~~~~~ + +Required properties: + - compatible : "olpc,xo1-rtc" diff --git a/Documentation/devicetree/bindings/tty/serial/fsl-imx-uart.txt b/Documentation/devicetree/bindings/tty/serial/fsl-imx-uart.txt new file mode 100644 index 00000000000..a9c0406280e --- /dev/null +++ b/Documentation/devicetree/bindings/tty/serial/fsl-imx-uart.txt @@ -0,0 +1,19 @@ +* Freescale i.MX Universal Asynchronous Receiver/Transmitter (UART) + +Required properties: +- compatible : Should be "fsl,<soc>-uart" +- reg : Address and length of the register set for the device +- interrupts : Should contain uart interrupt + +Optional properties: +- fsl,uart-has-rtscts : Indicate the uart has rts and cts +- fsl,irda-mode : Indicate the uart supports irda mode + +Example: + +uart@73fbc000 { + compatible = "fsl,imx51-uart", "fsl,imx21-uart"; + reg = <0x73fbc000 0x4000>; + interrupts = <31>; + fsl,uart-has-rtscts; +}; diff --git a/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.txt b/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.txt new file mode 100644 index 00000000000..2144af1a526 --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/fsl-imx-wdt.txt @@ -0,0 +1,14 @@ +* Freescale i.MX Watchdog Timer (WDT) Controller + +Required properties: +- compatible : Should be "fsl,<soc>-wdt" +- reg : Should contain WDT registers location and length +- interrupts : Should contain WDT interrupt + +Examples: + +wdt@73f98000 { + compatible = "fsl,imx51-wdt", "fsl,imx21-wdt"; + reg = <0x73f98000 0x4000>; + interrupts = <58>; +}; diff --git a/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt new file mode 100644 index 00000000000..79ead8263ae --- /dev/null +++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt @@ -0,0 +1,11 @@ +* Samsung's Watchdog Timer Controller + +The Samsung's Watchdog controller is used for resuming system operation +after a preset amount of time during which the WDT reset event has not +occured. + +Required properties: +- compatible : should be "samsung,s3c2410-wdt" +- reg : base physical address of the controller and length of memory mapped + region. +- interrupts : interrupt number to the cpu. diff --git a/Documentation/dmaengine.txt b/Documentation/dmaengine.txt index 5a0cb1ef616..94b7e0f96b3 100644 --- a/Documentation/dmaengine.txt +++ b/Documentation/dmaengine.txt @@ -10,87 +10,181 @@ NOTE: For DMA Engine usage in async_tx please see: Below is a guide to device driver writers on how to use the Slave-DMA API of the DMA Engine. This is applicable only for slave DMA usage only. -The slave DMA usage consists of following steps +The slave DMA usage consists of following steps: 1. Allocate a DMA slave channel 2. Set slave and controller specific parameters 3. Get a descriptor for transaction -4. Submit the transaction and wait for callback notification +4. Submit the transaction +5. Issue pending requests and wait for callback notification 1. Allocate a DMA slave channel -Channel allocation is slightly different in the slave DMA context, client -drivers typically need a channel from a particular DMA controller only and even -in some cases a specific channel is desired. To request a channel -dma_request_channel() API is used. - -Interface: -struct dma_chan *dma_request_channel(dma_cap_mask_t mask, - dma_filter_fn filter_fn, - void *filter_param); -where dma_filter_fn is defined as: -typedef bool (*dma_filter_fn)(struct dma_chan *chan, void *filter_param); - -When the optional 'filter_fn' parameter is set to NULL dma_request_channel -simply returns the first channel that satisfies the capability mask. Otherwise, -when the mask parameter is insufficient for specifying the necessary channel, -the filter_fn routine can be used to disposition the available channels in the -system. The filter_fn routine is called once for each free channel in the -system. Upon seeing a suitable channel filter_fn returns DMA_ACK which flags -that channel to be the return value from dma_request_channel. A channel -allocated via this interface is exclusive to the caller, until -dma_release_channel() is called. + + Channel allocation is slightly different in the slave DMA context, + client drivers typically need a channel from a particular DMA + controller only and even in some cases a specific channel is desired. + To request a channel dma_request_channel() API is used. + + Interface: + struct dma_chan *dma_request_channel(dma_cap_mask_t mask, + dma_filter_fn filter_fn, + void *filter_param); + where dma_filter_fn is defined as: + typedef bool (*dma_filter_fn)(struct dma_chan *chan, void *filter_param); + + The 'filter_fn' parameter is optional, but highly recommended for + slave and cyclic channels as they typically need to obtain a specific + DMA channel. + + When the optional 'filter_fn' parameter is NULL, dma_request_channel() + simply returns the first channel that satisfies the capability mask. + + Otherwise, the 'filter_fn' routine will be called once for each free + channel which has a capability in 'mask'. 'filter_fn' is expected to + return 'true' when the desired DMA channel is found. + + A channel allocated via this interface is exclusive to the caller, + until dma_release_channel() is called. 2. Set slave and controller specific parameters -Next step is always to pass some specific information to the DMA driver. Most of -the generic information which a slave DMA can use is in struct dma_slave_config. -It allows the clients to specify DMA direction, DMA addresses, bus widths, DMA -burst lengths etc. If some DMA controllers have more parameters to be sent then -they should try to embed struct dma_slave_config in their controller specific -structure. That gives flexibility to client to pass more parameters, if -required. - -Interface: -int dmaengine_slave_config(struct dma_chan *chan, - struct dma_slave_config *config) + + Next step is always to pass some specific information to the DMA + driver. Most of the generic information which a slave DMA can use + is in struct dma_slave_config. This allows the clients to specify + DMA direction, DMA addresses, bus widths, DMA burst lengths etc + for the peripheral. + + If some DMA controllers have more parameters to be sent then they + should try to embed struct dma_slave_config in their controller + specific structure. That gives flexibility to client to pass more + parameters, if required. + + Interface: + int dmaengine_slave_config(struct dma_chan *chan, + struct dma_slave_config *config) + + Please see the dma_slave_config structure definition in dmaengine.h + for a detailed explaination of the struct members. Please note + that the 'direction' member will be going away as it duplicates the + direction given in the prepare call. 3. Get a descriptor for transaction -For slave usage the various modes of slave transfers supported by the -DMA-engine are: -slave_sg - DMA a list of scatter gather buffers from/to a peripheral -dma_cyclic - Perform a cyclic DMA operation from/to a peripheral till the + + For slave usage the various modes of slave transfers supported by the + DMA-engine are: + + slave_sg - DMA a list of scatter gather buffers from/to a peripheral + dma_cyclic - Perform a cyclic DMA operation from/to a peripheral till the operation is explicitly stopped. -The non NULL return of this transfer API represents a "descriptor" for the given -transaction. - -Interface: -struct dma_async_tx_descriptor *(*chan->device->device_prep_dma_sg)( - struct dma_chan *chan, - struct scatterlist *dst_sg, unsigned int dst_nents, - struct scatterlist *src_sg, unsigned int src_nents, + + A non-NULL return of this transfer API represents a "descriptor" for + the given transaction. + + Interface: + struct dma_async_tx_descriptor *(*chan->device->device_prep_slave_sg)( + struct dma_chan *chan, struct scatterlist *sgl, + unsigned int sg_len, enum dma_data_direction direction, unsigned long flags); -struct dma_async_tx_descriptor *(*chan->device->device_prep_dma_cyclic)( + + struct dma_async_tx_descriptor *(*chan->device->device_prep_dma_cyclic)( struct dma_chan *chan, dma_addr_t buf_addr, size_t buf_len, size_t period_len, enum dma_data_direction direction); -4. Submit the transaction and wait for callback notification -To schedule the transaction to be scheduled by dma device, the "descriptor" -returned in above (3) needs to be submitted. -To tell the dma driver that a transaction is ready to be serviced, the -descriptor->submit() callback needs to be invoked. This chains the descriptor to -the pending queue. -The transactions in the pending queue can be activated by calling the -issue_pending API. If channel is idle then the first transaction in queue is -started and subsequent ones queued up. -On completion of the DMA operation the next in queue is submitted and a tasklet -triggered. The tasklet would then call the client driver completion callback -routine for notification, if set. -Interface: -void dma_async_issue_pending(struct dma_chan *chan); - -============================================================================== - -Additional usage notes for dma driver writers -1/ Although DMA engine specifies that completion callback routines cannot submit -any new operations, but typically for slave DMA subsequent transaction may not -be available for submit prior to callback routine being called. This requirement -is not a requirement for DMA-slave devices. But they should take care to drop -the spin-lock they might be holding before calling the callback routine + The peripheral driver is expected to have mapped the scatterlist for + the DMA operation prior to calling device_prep_slave_sg, and must + keep the scatterlist mapped until the DMA operation has completed. + The scatterlist must be mapped using the DMA struct device. So, + normal setup should look like this: + + nr_sg = dma_map_sg(chan->device->dev, sgl, sg_len); + if (nr_sg == 0) + /* error */ + + desc = chan->device->device_prep_slave_sg(chan, sgl, nr_sg, + direction, flags); + + Once a descriptor has been obtained, the callback information can be + added and the descriptor must then be submitted. Some DMA engine + drivers may hold a spinlock between a successful preparation and + submission so it is important that these two operations are closely + paired. + + Note: + Although the async_tx API specifies that completion callback + routines cannot submit any new operations, this is not the + case for slave/cyclic DMA. + + For slave DMA, the subsequent transaction may not be available + for submission prior to callback function being invoked, so + slave DMA callbacks are permitted to prepare and submit a new + transaction. + + For cyclic DMA, a callback function may wish to terminate the + DMA via dmaengine_terminate_all(). + + Therefore, it is important that DMA engine drivers drop any + locks before calling the callback function which may cause a + deadlock. + + Note that callbacks will always be invoked from the DMA + engines tasklet, never from interrupt context. + +4. Submit the transaction + + Once the descriptor has been prepared and the callback information + added, it must be placed on the DMA engine drivers pending queue. + + Interface: + dma_cookie_t dmaengine_submit(struct dma_async_tx_descriptor *desc) + + This returns a cookie can be used to check the progress of DMA engine + activity via other DMA engine calls not covered in this document. + + dmaengine_submit() will not start the DMA operation, it merely adds + it to the pending queue. For this, see step 5, dma_async_issue_pending. + +5. Issue pending DMA requests and wait for callback notification + + The transactions in the pending queue can be activated by calling the + issue_pending API. If channel is idle then the first transaction in + queue is started and subsequent ones queued up. + + On completion of each DMA operation, the next in queue is started and + a tasklet triggered. The tasklet will then call the client driver + completion callback routine for notification, if set. + + Interface: + void dma_async_issue_pending(struct dma_chan *chan); + +Further APIs: + +1. int dmaengine_terminate_all(struct dma_chan *chan) + + This causes all activity for the DMA channel to be stopped, and may + discard data in the DMA FIFO which hasn't been fully transferred. + No callback functions will be called for any incomplete transfers. + +2. int dmaengine_pause(struct dma_chan *chan) + + This pauses activity on the DMA channel without data loss. + +3. int dmaengine_resume(struct dma_chan *chan) + + Resume a previously paused DMA channel. It is invalid to resume a + channel which is not currently paused. + +4. enum dma_status dma_async_is_tx_complete(struct dma_chan *chan, + dma_cookie_t cookie, dma_cookie_t *last, dma_cookie_t *used) + + This can be used to check the status of the channel. Please see + the documentation in include/linux/dmaengine.h for a more complete + description of this API. + + This can be used in conjunction with dma_async_is_complete() and + the cookie returned from 'descriptor->submit()' to check for + completion of a specific DMA transaction. + + Note: + Not all DMA engine drivers can return reliable information for + a running DMA channel. It is recommended that DMA engine users + pause or stop (via dmaengine_terminate_all) the channel before + using this API. diff --git a/Documentation/driver-model/device.txt b/Documentation/driver-model/device.txt index b2ff42685bc..bdefe728a73 100644 --- a/Documentation/driver-model/device.txt +++ b/Documentation/driver-model/device.txt @@ -104,4 +104,4 @@ Then in the module init function is would do: And assuming 'dev' is the struct device passed into the probe hook, the driver probe function would do something like: - create_device(&mydriver_class, dev, chrdev, &private_data, "my_name"); + device_create(&mydriver_class, dev, chrdev, &private_data, "my_name"); diff --git a/Documentation/driver-model/overview.txt b/Documentation/driver-model/overview.txt index 07236ed968d..6a8f9a8075d 100644 --- a/Documentation/driver-model/overview.txt +++ b/Documentation/driver-model/overview.txt @@ -30,7 +30,7 @@ management, and hot plug. In particular, the model dictated by Intel and Microsoft (namely ACPI) ensures that almost every device on almost any bus on an x86-compatible system can work within this paradigm. Of course, not every bus is able to support all such operations, although most -buses support a most of those operations. +buses support most of those operations. Downstream Access @@ -46,25 +46,29 @@ struct pci_dev now looks like this: struct pci_dev { ... - struct device dev; + struct device dev; /* Generic device interface */ + ... }; -Note first that it is statically allocated. This means only one allocation on -device discovery. Note also that it is at the _end_ of struct pci_dev. This is -to make people think about what they're doing when switching between the bus -driver and the global driver; and to prevent against mindless casts between -the two. +Note first that the struct device dev within the struct pci_dev is +statically allocated. This means only one allocation on device discovery. + +Note also that that struct device dev is not necessarily defined at the +front of the pci_dev structure. This is to make people think about what +they're doing when switching between the bus driver and the global driver, +and to discourage meaningless and incorrect casts between the two. The PCI bus layer freely accesses the fields of struct device. It knows about the structure of struct pci_dev, and it should know the structure of struct device. Individual PCI device drivers that have been converted to the current driver model generally do not and should not touch the fields of struct device, -unless there is a strong compelling reason to do so. +unless there is a compelling reason to do so. -This abstraction is prevention of unnecessary pain during transitional phases. -If the name of the field changes or is removed, then every downstream driver -will break. On the other hand, if only the bus layer (and not the device -layer) accesses struct device, it is only that layer that needs to change. +The above abstraction prevents unnecessary pain during transitional phases. +If it were not done this way, then when a field was renamed or removed, every +downstream driver would break. On the other hand, if only the bus layer +(and not the device layer) accesses the struct device, it is only the bus +layer that needs to change. User Interface @@ -73,15 +77,27 @@ User Interface By virtue of having a complete hierarchical view of all the devices in the system, exporting a complete hierarchical view to userspace becomes relatively easy. This has been accomplished by implementing a special purpose virtual -file system named sysfs. It is hence possible for the user to mount the -whole sysfs filesystem anywhere in userspace. +file system named sysfs. + +Almost all mainstream Linux distros mount this filesystem automatically; you +can see some variation of the following in the output of the "mount" command: + +$ mount +... +none on /sys type sysfs (rw,noexec,nosuid,nodev) +... +$ + +The auto-mounting of sysfs is typically accomplished by an entry similar to +the following in the /etc/fstab file: + +none /sys sysfs defaults 0 0 -This can be done permanently by providing the following entry into the -/etc/fstab (under the provision that the mount point does exist, of course): +or something similar in the /lib/init/fstab file on Debian-based systems: -none /sys sysfs defaults 0 0 +none /sys sysfs nodev,noexec,nosuid 0 0 -Or by hand on the command line: +If sysfs is not automatically mounted, you can always do it manually with: # mount -t sysfs sysfs /sys diff --git a/Documentation/dvb/get_dvb_firmware b/Documentation/dvb/get_dvb_firmware index 3348d313fbe..c466f5831f1 100644..100755 --- a/Documentation/dvb/get_dvb_firmware +++ b/Documentation/dvb/get_dvb_firmware @@ -27,7 +27,7 @@ use IO::Handle; "or51211", "or51132_qam", "or51132_vsb", "bluebird", "opera1", "cx231xx", "cx18", "cx23885", "pvrusb2", "mpc718", "af9015", "ngene", "az6027", "lme2510_lg", "lme2510c_s7395", - "lme2510c_s7395_old"); + "lme2510c_s7395_old", "drxk", "drxk_terratec_h5"); # Check args syntax() if (scalar(@ARGV) != 1); @@ -634,6 +634,37 @@ sub lme2510c_s7395_old { $outfile; } +sub drxk { + my $url = "http://l4m-daten.de/files/"; + my $zipfile = "DDTuner.zip"; + my $hash = "f5a37b9a20a3534997997c0b1382a3e5"; + my $tmpdir = tempdir(DIR => "/tmp", CLEANUP => 1); + my $drvfile = "DDTuner.sys"; + my $fwfile = "drxk_a3.mc"; + + checkstandard(); + + wgetfile($zipfile, $url . $zipfile); + verify($zipfile, $hash); + unzip($zipfile, $tmpdir); + extract("$tmpdir/$drvfile", 0x14dd8, 15634, "$fwfile"); + + "$fwfile" +} + +sub drxk_terratec_h5 { + my $url = "http://www.linuxtv.org/downloads/firmware/"; + my $hash = "19000dada8e2741162ccc50cc91fa7f1"; + my $fwfile = "dvb-usb-terratec-h5-drxk.fw"; + + checkstandard(); + + wgetfile($fwfile, $url . $fwfile); + verify($fwfile, $hash); + + "$fwfile" +} + # --------------------------------------------------------------- # Utilities diff --git a/Documentation/email-clients.txt b/Documentation/email-clients.txt index a0b58e29f91..860c29a472a 100644 --- a/Documentation/email-clients.txt +++ b/Documentation/email-clients.txt @@ -199,18 +199,16 @@ to coerce it into behaving. To beat some sense out of the internal editor, do this: -- Under account settings, composition and addressing, uncheck "Compose - messages in HTML format". - - Edit your Thunderbird config settings so that it won't use format=flowed. Go to "edit->preferences->advanced->config editor" to bring up the thunderbird's registry editor, and set "mailnews.send_plaintext_flowed" to "false". -- Enable "preformat" mode: Shft-click on the Write icon to bring up the HTML - composer, select "Preformat" from the drop-down box just under the subject - line, then close the message without saving. (This setting also applies to - the text composer, but the only control for it is in the HTML composer.) +- Disable HTML Format: Set "mail.identity.id1.compose_html" to "false". + +- Enable "preformat" mode: Set "editor.quotesPreformatted" to "true". + +- Enable UTF8: Set "prefs.converted-to-utf8" to "true". - Install the "toggle wordwrap" extension. Download the file from: https://addons.mozilla.org/thunderbird/addon/2351/ diff --git a/Documentation/fault-injection/fault-injection.txt b/Documentation/fault-injection/fault-injection.txt index 7be15e44d48..82a5d250d75 100644 --- a/Documentation/fault-injection/fault-injection.txt +++ b/Documentation/fault-injection/fault-injection.txt @@ -143,8 +143,7 @@ o provide a way to configure fault attributes failslab, fail_page_alloc, and fail_make_request use this way. Helper functions: - init_fault_attr_dentries(entries, attr, name); - void cleanup_fault_attr_dentries(entries); + fault_create_debugfs_attr(name, parent, attr); - module parameters diff --git a/Documentation/fb/modedb.txt b/Documentation/fb/modedb.txt index ec4dee75a35..16aa0845391 100644 --- a/Documentation/fb/modedb.txt +++ b/Documentation/fb/modedb.txt @@ -20,7 +20,7 @@ in a video= option, fbmem considers that to be a global video mode option. Valid mode specifiers (mode_option argument): - <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m] + <xres>x<yres>[M][R][-<bpp>][@<refresh>][i][m][eDd] <name>[-<bpp>][@<refresh>] with <xres>, <yres>, <bpp> and <refresh> decimal numbers and <name> a string. @@ -36,6 +36,21 @@ pixels and 1.8% of yres). Sample usage: 1024x768M@60m - CVT timing with margins +DRM drivers also add options to enable or disable outputs: + +'e' will force the display to be enabled, i.e. it will override the detection +if a display is connected. 'D' will force the display to be enabled and use +digital output. This is useful for outputs that have both analog and digital +signals (e.g. HDMI and DVI-I). For other outputs it behaves like 'e'. If 'd' +is specified the output is disabled. + +You can additionally specify which output the options matches to. +To force the VGA output to be enabled and drive a specific mode say: + video=VGA-1:1280x1024@60me + +Specifying the option multiple times for different ports is possible, e.g.: + video=LVDS-1:d video=HDMI-1:D + ***** oOo ***** oOo ***** oOo ***** oOo ***** oOo ***** oOo ***** oOo ***** What is the VESA(TM) Coordinated Video Timings (CVT)? @@ -132,5 +147,5 @@ There may be more modes. tridentfb - Trident (Cyber)blade chipset frame buffer vt8623fb - VIA 8623 frame buffer -BTW, only a few drivers use this at the moment. Others are to follow -(feel free to send patches). +BTW, only a few fb drivers use this at the moment. Others are to follow +(feel free to send patches). The DRM drivers also support this. diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt index d59e71df5c5..4dc46547766 100644 --- a/Documentation/feature-removal-schedule.txt +++ b/Documentation/feature-removal-schedule.txt @@ -184,7 +184,7 @@ Why: /proc/<pid>/oom_adj allows userspace to influence the oom killer's A much more powerful interface, /proc/<pid>/oom_score_adj, was introduced with the oom killer rewrite that allows users to increase or - decrease the badness() score linearly. This interface will replace + decrease the badness score linearly. This interface will replace /proc/<pid>/oom_adj. A warning will be emitted to the kernel log if an application uses this @@ -193,20 +193,6 @@ Why: /proc/<pid>/oom_adj allows userspace to influence the oom killer's --------------------------- -What: CS5535/CS5536 obsolete GPIO driver -When: June 2011 -Files: drivers/staging/cs5535_gpio/* -Check: drivers/staging/cs5535_gpio/cs5535_gpio.c -Why: A newer driver replaces this; it is drivers/gpio/cs5535-gpio.c, and - integrates with the Linux GPIO subsystem. The old driver has been - moved to staging, and will be removed altogether around 2.6.40. - Please test the new driver, and ensure that the functionality you - need and any bugfixes from the old driver are available in the new - one. -Who: Andres Salomon <dilinger@queued.net> - --------------------------- - What: remove EXPORT_SYMBOL(kernel_thread) When: August 2006 Files: arch/*/kernel/*_ksyms.c @@ -294,7 +280,7 @@ When: The schedule was July 2008, but it was decided that we are going to keep t Why: The support code for the old firmware hurts code readability/maintainability and slightly hurts runtime performance. Bugfixes for the old firmware are not provided by Broadcom anymore. -Who: Michael Buesch <mb@bu3sch.de> +Who: Michael Buesch <m@bues.ch> --------------------------- @@ -310,15 +296,6 @@ Who: Ravikiran Thirumalai <kiran@scalex86.org> --------------------------- -What: CONFIG_THERMAL_HWMON -When: January 2009 -Why: This option was introduced just to allow older lm-sensors userspace - to keep working over the upgrade to 2.6.26. At the scheduled time of - removal fixed lm-sensors (2.x or 3.x) should be readily available. -Who: Rene Herman <rene.herman@gmail.com> - ---------------------------- - What: Code that is now under CONFIG_WIRELESS_EXT_SYSFS (in net/core/net-sysfs.c) When: After the only user (hal) has seen a release with the patches @@ -430,7 +407,7 @@ Who: Avi Kivity <avi@redhat.com> ---------------------------- What: iwlwifi 50XX module parameters -When: 2.6.40 +When: 3.0 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 @@ -441,7 +418,7 @@ Who: Wey-Yi Guy <wey-yi.w.guy@intel.com> ---------------------------- What: iwl4965 alias support -When: 2.6.40 +When: 3.0 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. @@ -474,15 +451,8 @@ Who: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> ---------------------------- -What: DMA_xxBIT_MASK macros -When: Jun 2011 -Why: DMA_xxBIT_MASK macros were replaced with DMA_BIT_MASK() macros. -Who: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> - ----------------------------- - What: iwlwifi disable_hw_scan module parameters -When: 2.6.40 +When: 3.0 Why: Hareware scan is the prefer method for iwlwifi devices for scanning operation. Remove software scan support for all the iwlwifi devices. @@ -491,16 +461,6 @@ Who: Wey-Yi Guy <wey-yi.w.guy@intel.com> ---------------------------- -What: access to nfsd auth cache through sys_nfsservctl or '.' files - in the 'nfsd' filesystem. -When: 2.6.40 -Why: This is a legacy interface which have been replaced by a more - dynamic cache. Continuing to maintain this interface is an - unnecessary burden. -Who: NeilBrown <neilb@suse.de> - ----------------------------- - What: Legacy, non-standard chassis intrusion detection interface. When: June 2011 Why: The adm9240, w83792d and w83793 hardware monitoring drivers have @@ -518,22 +478,6 @@ Files: net/netfilter/xt_connlimit.c ---------------------------- -What: noswapaccount kernel command line parameter -When: 2.6.40 -Why: The original implementation of memsw feature enabled by - CONFIG_CGROUP_MEM_RES_CTLR_SWAP could be disabled by the noswapaccount - kernel parameter (introduced in 2.6.29-rc1). Later on, this decision - turned out to be not ideal because we cannot have the feature compiled - in and disabled by default and let only interested to enable it - (e.g. general distribution kernels might need it). Therefore we have - added swapaccount[=0|1] parameter (introduced in 2.6.37) which provides - the both possibilities. If we remove noswapaccount we will have - less command line parameters with the same functionality and we - can also cleanup the parameter handling a bit (). -Who: Michal Hocko <mhocko@suse.cz> - ----------------------------- - What: ipt_addrtype match include file When: 2012 Why: superseded by xt_addrtype @@ -552,7 +496,7 @@ Who: Jean Delvare <khali@linux-fr.org> ---------------------------- What: Support for UVCIOC_CTRL_ADD in the uvcvideo driver -When: 2.6.42 +When: 3.2 Why: The information passed to the driver by this ioctl is now queried dynamically from the device. Who: Laurent Pinchart <laurent.pinchart@ideasonboard.com> @@ -560,7 +504,7 @@ Who: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ---------------------------- What: Support for UVCIOC_CTRL_MAP_OLD in the uvcvideo driver -When: 2.6.42 +When: 3.2 Why: Used only by applications compiled against older driver versions. Superseded by UVCIOC_CTRL_MAP which supports V4L2 menu controls. Who: Laurent Pinchart <laurent.pinchart@ideasonboard.com> @@ -568,12 +512,47 @@ Who: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ---------------------------- What: Support for UVCIOC_CTRL_GET and UVCIOC_CTRL_SET in the uvcvideo driver -When: 2.6.42 +When: 3.2 Why: Superseded by the UVCIOC_CTRL_QUERY ioctl. Who: Laurent Pinchart <laurent.pinchart@ideasonboard.com> ---------------------------- +What: Support for driver specific ioctls in the pwc driver (everything + defined in media/pwc-ioctl.h) +When: 3.3 +Why: This stems from the v4l1 era, with v4l2 everything can be done with + standardized v4l2 API calls +Who: Hans de Goede <hdegoede@redhat.com> + +---------------------------- + +What: Driver specific sysfs API in the pwc driver +When: 3.3 +Why: Setting pan/tilt should be done with v4l2 controls, like with other + cams. The button is available as a standard input device +Who: Hans de Goede <hdegoede@redhat.com> + +---------------------------- + +What: Driver specific use of pixfmt.priv in the pwc driver +When: 3.3 +Why: The .priv field never was intended for this, setting a framerate is + support using the standardized S_PARM ioctl +Who: Hans de Goede <hdegoede@redhat.com> + +---------------------------- + +What: Software emulation of arbritary resolutions in the pwc driver +When: 3.3 +Why: The pwc driver claims to support any resolution between 160x120 + and 640x480, but emulates this by simply drawing a black border + around the image. Userspace can draw its own black border if it + really wants one. +Who: Hans de Goede <hdegoede@redhat.com> + +---------------------------- + What: For VIDIOC_S_FREQUENCY the type field must match the device node's type. If not, return -EINVAL. When: 3.2 @@ -595,3 +574,29 @@ Why: Just opening a V4L device should not change the state of the hardware Who: Hans Verkuil <hans.verkuil@cisco.com> ---------------------------- + +What: g_file_storage driver +When: 3.8 +Why: This driver has been superseded by g_mass_storage. +Who: Alan Stern <stern@rowland.harvard.edu> + +---------------------------- + +What: threeg and interface sysfs files in /sys/devices/platform/acer-wmi +When: 2012 +Why: In 3.0, we can now autodetect internal 3G device and already have + the threeg rfkill device. So, we plan to remove threeg sysfs support + for it's no longer necessary. + + We also plan to remove interface sysfs file that exposed which ACPI-WMI + interface that was used by acer-wmi driver. It will replaced by + information log when acer-wmi initial. +Who: Lee, Chun-Yi <jlee@novell.com> + +---------------------------- +What: The XFS nodelaylog mount option +When: 3.3 +Why: The delaylog mode that has been the default since 2.6.39 has proven + stable, and the old code is in the way of additional improvements in + the log code. +Who: Christoph Hellwig <hch@lst.de> diff --git a/Documentation/filesystems/Locking b/Documentation/filesystems/Locking index ca7e2529254..653380793a6 100644 --- a/Documentation/filesystems/Locking +++ b/Documentation/filesystems/Locking @@ -52,7 +52,7 @@ ata *); void (*put_link) (struct dentry *, struct nameidata *, void *); void (*truncate) (struct inode *); int (*permission) (struct inode *, int, unsigned int); - int (*check_acl)(struct inode *, int); + int (*get_acl)(struct inode *, int); int (*setattr) (struct dentry *, struct iattr *); int (*getattr) (struct vfsmount *, struct dentry *, struct kstat *); int (*setxattr) (struct dentry *, const char *,const void *,size_t,int); @@ -80,7 +80,7 @@ put_link: no truncate: yes (see below) setattr: yes permission: no (may not block if called in rcu-walk mode) -check_acl: no +get_acl: no getattr: no setxattr: yes getxattr: no @@ -338,21 +338,21 @@ fl_release_private: maybe no ----------------------- lock_manager_operations --------------------------- prototypes: - int (*fl_compare_owner)(struct file_lock *, struct file_lock *); - void (*fl_notify)(struct file_lock *); /* unblock callback */ - int (*fl_grant)(struct file_lock *, struct file_lock *, int); - void (*fl_release_private)(struct file_lock *); - void (*fl_break)(struct file_lock *); /* break_lease callback */ - int (*fl_change)(struct file_lock **, int); + int (*lm_compare_owner)(struct file_lock *, struct file_lock *); + void (*lm_notify)(struct file_lock *); /* unblock callback */ + int (*lm_grant)(struct file_lock *, struct file_lock *, int); + void (*lm_release_private)(struct file_lock *); + void (*lm_break)(struct file_lock *); /* break_lease callback */ + int (*lm_change)(struct file_lock **, int); locking rules: file_lock_lock may block -fl_compare_owner: yes no -fl_notify: yes no -fl_grant: no no -fl_release_private: maybe no -fl_break: yes no -fl_change yes no +lm_compare_owner: yes no +lm_notify: yes no +lm_grant: no no +lm_release_private: maybe no +lm_break: yes no +lm_change yes no --------------------------- buffer_head ----------------------------------- prototypes: diff --git a/Documentation/filesystems/befs.txt b/Documentation/filesystems/befs.txt index 6e49c363938..da45e6c842b 100644 --- a/Documentation/filesystems/befs.txt +++ b/Documentation/filesystems/befs.txt @@ -27,7 +27,7 @@ His original code can still be found at: Does anyone know of a more current email address for Makoto? He doesn't respond to the address given above... -Current maintainer: Sergey S. Kostyliov <rathamahata@php4.ru> +This filesystem doesn't have a maintainer. WHAT IS THIS DRIVER? ================== diff --git a/Documentation/filesystems/debugfs.txt b/Documentation/filesystems/debugfs.txt index ed52af60c2d..742cc06e138 100644 --- a/Documentation/filesystems/debugfs.txt +++ b/Documentation/filesystems/debugfs.txt @@ -73,8 +73,8 @@ the following functions can be used instead: struct dentry *parent, u16 *value); struct dentry *debugfs_create_x32(const char *name, mode_t mode, struct dentry *parent, u32 *value); - -Note that there is no debugfs_create_x64(). + struct dentry *debugfs_create_x64(const char *name, mode_t mode, + struct dentry *parent, u64 *value); These functions are useful as long as the developer knows the size of the value to be exported. Some types can have different widths on different diff --git a/Documentation/filesystems/ext3.txt b/Documentation/filesystems/ext3.txt index 272f80d5f96..22f3a0eda1d 100644 --- a/Documentation/filesystems/ext3.txt +++ b/Documentation/filesystems/ext3.txt @@ -147,15 +147,6 @@ grpjquota=<file> during journal replay. They replace the above package for more details (http://sourceforge.net/projects/linuxquota). -bh (*) ext3 associates buffer heads to data pages to -nobh (a) cache disk block mapping information - (b) link pages into transaction to provide - ordering guarantees. - "bh" option forces use of buffer heads. - "nobh" option tries to avoid associating buffer - heads (supported only for "writeback" mode). - - Specification ============= Ext3 shares all disk implementation with the ext2 filesystem, and adds @@ -227,5 +218,5 @@ kernel source: <file:fs/ext3/> programs: http://e2fsprogs.sourceforge.net/ http://ext2resize.sourceforge.net -useful links: http://www.ibm.com/developerworks/library/l-fs7.html - http://www.ibm.com/developerworks/library/l-fs8.html +useful links: http://www.ibm.com/developerworks/library/l-fs7/index.html + http://www.ibm.com/developerworks/library/l-fs8/index.html diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt index 3ae9bc94352..232a575a0c4 100644 --- a/Documentation/filesystems/ext4.txt +++ b/Documentation/filesystems/ext4.txt @@ -68,12 +68,12 @@ Note: More extensive information for getting started with ext4 can be '-o barriers=[0|1]' mount option for both ext3 and ext4 filesystems for a fair comparison. When tuning ext3 for best benchmark numbers, it is often worthwhile to try changing the data journaling mode; '-o - data=writeback,nobh' can be faster for some workloads. (Note - however that running mounted with data=writeback can potentially - leave stale data exposed in recently written files in case of an - unclean shutdown, which could be a security exposure in some - situations.) Configuring the filesystem with a large journal can - also be helpful for metadata-intensive workloads. + data=writeback' can be faster for some workloads. (Note however that + running mounted with data=writeback can potentially leave stale data + exposed in recently written files in case of an unclean shutdown, + which could be a security exposure in some situations.) Configuring + the filesystem with a large journal can also be helpful for + metadata-intensive workloads. 2. Features =========== @@ -272,14 +272,6 @@ grpjquota=<file> during journal replay. They replace the above package for more details (http://sourceforge.net/projects/linuxquota). -bh (*) ext4 associates buffer heads to data pages to -nobh (a) cache disk block mapping information - (b) link pages into transaction to provide - ordering guarantees. - "bh" option forces use of buffer heads. - "nobh" option tries to avoid associating buffer - heads (supported only for "writeback" mode). - stripe=n Number of filesystem blocks that mballoc will try to use for allocation size and alignment. For RAID5/6 systems this should be the number of data @@ -393,8 +385,7 @@ dioread_nolock locking. If the dioread_nolock option is specified write and convert the extent to initialized after IO completes. This approach allows ext4 code to avoid using inode mutex, which improves scalability on high - speed storages. However this does not work with nobh - option and the mount will fail. Nor does it work with + speed storages. However this does not work with data journaling and dioread_nolock option will be ignored with kernel warning. Note that dioread_nolock code path is only used for extent-based files. diff --git a/Documentation/filesystems/nfs/Exporting b/Documentation/filesystems/nfs/Exporting index 87019d2b598..09994c24728 100644 --- a/Documentation/filesystems/nfs/Exporting +++ b/Documentation/filesystems/nfs/Exporting @@ -92,7 +92,14 @@ For a filesystem to be exportable it must: 1/ provide the filehandle fragment routines described below. 2/ make sure that d_splice_alias is used rather than d_add when ->lookup finds an inode for a given parent and name. - Typically the ->lookup routine will end with a: + + If inode is NULL, d_splice_alias(inode, dentry) is eqivalent to + + d_add(dentry, inode), NULL + + Similarly, d_splice_alias(ERR_PTR(err), dentry) = ERR_PTR(err) + + Typically the ->lookup routine will simply end with a: return d_splice_alias(inode, dentry); } diff --git a/Documentation/filesystems/nfs/nfs41-server.txt b/Documentation/filesystems/nfs/nfs41-server.txt index 04884914a1c..092fad92a3f 100644 --- a/Documentation/filesystems/nfs/nfs41-server.txt +++ b/Documentation/filesystems/nfs/nfs41-server.txt @@ -39,27 +39,17 @@ interoperability problems with future clients. Known issues: from a linux client are possible, but we aren't really conformant with the spec (for example, we don't use kerberos on the backchannel correctly). - - no trunking support: no clients currently take advantage of - trunking, but this is a mandatory feature, and its use is - recommended to clients in a number of places. (E.g. to ensure - timely renewal in case an existing connection's retry timeouts - have gotten too long; see section 8.3 of the RFC.) - Therefore, lack of this feature may cause future clients to - fail. - Incomplete backchannel support: incomplete backchannel gss support and no support for BACKCHANNEL_CTL mean that callbacks (hence delegations and layouts) may not be available and clients confused by the incomplete implementation may fail. - - Server reboot recovery is unsupported; if the server reboots, - clients may fail. - We do not support SSV, which provides security for shared client-server state (thus preventing unauthorized tampering with locks and opens, for example). It is mandatory for servers to support this, though no clients use it yet. - Mandatory operations which we do not support, such as - DESTROY_CLIENTID, FREE_STATEID, SECINFO_NO_NAME, and - TEST_STATEID, are not currently used by clients, but will be + DESTROY_CLIENTID, are not currently used by clients, but will be (and the spec recommends their uses in common cases), and clients should not be expected to know how to recover from the case where they are not supported. This will eventually cause @@ -69,8 +59,9 @@ In addition, some limitations are inherited from the current NFSv4 implementation: - Incomplete delegation enforcement: if a file is renamed or - unlinked, a client holding a delegation may continue to - indefinitely allow opens of the file under the old name. + unlinked by a local process, a client holding a delegation may + continue to indefinitely allow opens of the file under the old + name. The table below, taken from the NFSv4.1 document, lists the operations that are mandatory to implement (REQ), optional @@ -99,7 +90,7 @@ Operations +----------------------+------------+--------------+----------------+ | ACCESS | REQ | | Section 18.1 | NS | BACKCHANNEL_CTL | REQ | | Section 18.33 | -NS | BIND_CONN_TO_SESSION | REQ | | Section 18.34 | +I | BIND_CONN_TO_SESSION | REQ | | Section 18.34 | | CLOSE | REQ | | Section 18.2 | | COMMIT | REQ | | Section 18.3 | | CREATE | REQ | | Section 18.4 | @@ -111,7 +102,7 @@ NS*| DELEGPURGE | OPT | FDELG (REQ) | Section 18.5 | NS | DESTROY_CLIENTID | REQ | | Section 18.50 | I | DESTROY_SESSION | REQ | | Section 18.37 | I | EXCHANGE_ID | REQ | | Section 18.35 | -NS | FREE_STATEID | REQ | | Section 18.38 | +I | FREE_STATEID | REQ | | Section 18.38 | | GETATTR | REQ | | Section 18.7 | P | GETDEVICEINFO | OPT | pNFS (REQ) | Section 18.40 | P | GETDEVICELIST | OPT | pNFS (OPT) | Section 18.41 | @@ -145,14 +136,14 @@ NS*| OPENATTR | OPT | | Section 18.17 | | RESTOREFH | REQ | | Section 18.27 | | SAVEFH | REQ | | Section 18.28 | | SECINFO | REQ | | Section 18.29 | -NS | SECINFO_NO_NAME | REC | pNFS files | Section 18.45, | +I | SECINFO_NO_NAME | REC | pNFS files | Section 18.45, | | | | layout (REQ) | Section 13.12 | I | SEQUENCE | REQ | | Section 18.46 | | SETATTR | REQ | | Section 18.30 | | SETCLIENTID | MNI | | N/A | | SETCLIENTID_CONFIRM | MNI | | N/A | NS | SET_SSV | REQ | | Section 18.47 | -NS | TEST_STATEID | REQ | | Section 18.48 | +I | TEST_STATEID | REQ | | Section 18.48 | | VERIFY | REQ | | Section 18.31 | NS*| WANT_DELEGATION | OPT | FDELG (OPT) | Section 18.49 | | WRITE | REQ | | Section 18.32 | @@ -206,12 +197,6 @@ CREATE_SESSION: SEQUENCE: * no support for dynamic slot table renegotiation (optional) -nfsv4.1 COMPOUND rules: -The following cases aren't supported yet: -* Enforcing of NFS4ERR_NOT_ONLY_OP for: BIND_CONN_TO_SESSION, CREATE_SESSION, - DESTROY_CLIENTID, DESTROY_SESSION, EXCHANGE_ID. -* DESTROY_SESSION MUST be the final operation in the COMPOUND request. - Nonstandard compound limitations: * No support for a sessions fore channel RPC compound that requires both a ca_maxrequestsize request and a ca_maxresponsesize reply, so we may @@ -219,3 +204,5 @@ Nonstandard compound limitations: negotiation. * No more than one IO operation (read, write, readdir) allowed per compound. + +See also http://wiki.linux-nfs.org/wiki/index.php/Server_4.0_and_4.1_issues. diff --git a/Documentation/filesystems/nfs/nfsroot.txt b/Documentation/filesystems/nfs/nfsroot.txt index 90c71c6f0d0..ffdd9d866ad 100644 --- a/Documentation/filesystems/nfs/nfsroot.txt +++ b/Documentation/filesystems/nfs/nfsroot.txt @@ -226,7 +226,7 @@ They depend on various facilities being available: cdrecord. e.g. - cdrecord dev=ATAPI:1,0,0 arch/i386/boot/image.iso + cdrecord dev=ATAPI:1,0,0 arch/x86/boot/image.iso For more information on isolinux, including how to create bootdisks for prebuilt kernels, see http://syslinux.zytor.com/ diff --git a/Documentation/filesystems/porting b/Documentation/filesystems/porting index 7f8861d341e..b4a3d765ff9 100644 --- a/Documentation/filesystems/porting +++ b/Documentation/filesystems/porting @@ -407,10 +407,11 @@ to some pointer to returning that pointer. On errors return ERR_PTR(...). -- [mandatory] - ->permission(), generic_permission() and ->check_acl() have lost flags + ->permission() and generic_permission()have lost flags argument; instead of passing IPERM_FLAG_RCU we add MAY_NOT_BLOCK into mask. - generic_permission() has also lost the check_acl argument; if you want -non-NULL to be used for that inode, put it into ->i_op->check_acl. + generic_permission() has also lost the check_acl argument; ACL checking +has been taken to VFS and filesystems need to provide a non-NULL ->i_op->get_acl +to read an ACL from disk. -- [mandatory] diff --git a/Documentation/filesystems/squashfs.txt b/Documentation/filesystems/squashfs.txt index d4d41465a0b..7db3ebda5a4 100644 --- a/Documentation/filesystems/squashfs.txt +++ b/Documentation/filesystems/squashfs.txt @@ -2,7 +2,7 @@ SQUASHFS 4.0 FILESYSTEM ======================= Squashfs is a compressed read-only filesystem for Linux. -It uses zlib/lzo compression to compress files, inodes and directories. +It uses zlib/lzo/xz compression to compress files, inodes and directories. Inodes in the system are very small and all blocks are packed to minimise data overhead. Block sizes greater than 4K are supported up to a maximum of 1Mbytes (default block size 128K). @@ -55,6 +55,8 @@ create populated squashfs filesystems. This and other squashfs utilities can be obtained from http://www.squashfs.org. Usage instructions can be obtained from this site also. +The squashfs-tools development tree is now located on kernel.org + git://git.kernel.org/pub/scm/fs/squashfs/squashfs-tools.git 3. SQUASHFS FILESYSTEM DESIGN ----------------------------- diff --git a/Documentation/filesystems/vfs.txt b/Documentation/filesystems/vfs.txt index eff6617c9a0..52d8fb81cff 100644 --- a/Documentation/filesystems/vfs.txt +++ b/Documentation/filesystems/vfs.txt @@ -356,7 +356,7 @@ struct inode_operations { void (*put_link) (struct dentry *, struct nameidata *, void *); void (*truncate) (struct inode *); int (*permission) (struct inode *, int); - int (*check_acl)(struct inode *, int); + int (*get_acl)(struct inode *, int); int (*setattr) (struct dentry *, struct iattr *); int (*getattr) (struct vfsmount *mnt, struct dentry *, struct kstat *); int (*setxattr) (struct dentry *, const char *,const void *,size_t,int); diff --git a/Documentation/frv/booting.txt b/Documentation/frv/booting.txt index ace200b7c21..37c4d84a0e5 100644 --- a/Documentation/frv/booting.txt +++ b/Documentation/frv/booting.txt @@ -106,13 +106,20 @@ separated by spaces: To use the first on-chip serial port at baud rate 115200, no parity, 8 bits, and no flow control. - (*) root=/dev/<xxxx> + (*) root=<xxxx> - This specifies the device upon which the root filesystem resides. For - example: + This specifies the device upon which the root filesystem resides. It + may be specified by major and minor number, device path, or even + partition uuid, if supported. For example: /dev/nfs NFS root filesystem /dev/mtdblock3 Fourth RedBoot partition on the System Flash + PARTUUID=00112233-4455-6677-8899-AABBCCDDEEFF/PARTNROFF=1 + first partition after the partition with the given UUID + 253:0 Device with major 253 and minor 0 + + Authoritative information can be found in + "Documentation/kernel-parameters.txt". (*) rw diff --git a/Documentation/hwmon/adm1275 b/Documentation/hwmon/adm1275 index 6a3a6476cf2..097b3ccc4be 100644 --- a/Documentation/hwmon/adm1275 +++ b/Documentation/hwmon/adm1275 @@ -43,8 +43,8 @@ Documentation/hwmon/pmbus for details. Sysfs entries ------------- -The following attributes are supported. Limits are read-write; all other -attributes are read-only. +The following attributes are supported. Limits are read-write, history reset +attributes are write-only, all other attributes are read-only. in1_label "vin1" or "vout1" depending on chip variant and configuration. @@ -53,8 +53,12 @@ in1_min Minumum Voltage. From VOUT_UV_WARN_LIMIT register. in1_max Maximum voltage. From VOUT_OV_WARN_LIMIT register. in1_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status. in1_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status. +in1_highest Historical maximum voltage. +in1_reset_history Write any value to reset history. curr1_label "iout1" curr1_input Measured current. From READ_IOUT register. curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register. curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT register. +curr1_highest Historical maximum current. +curr1_reset_history Write any value to reset history. diff --git a/Documentation/hwmon/coretemp b/Documentation/hwmon/coretemp index f85e913a340..84d46c0c71a 100644 --- a/Documentation/hwmon/coretemp +++ b/Documentation/hwmon/coretemp @@ -42,9 +42,10 @@ tempX_label - Contains string "Core X", where X is processor number. For Package temp, this will be "Physical id Y", where Y is the package number. -The TjMax temperature is set to 85 degrees C if undocumented model specific -register (UMSR) 0xee has bit 30 set. If not the TjMax is 100 degrees C as -(sometimes) documented in processor datasheet. +On CPU models which support it, TjMax is read from a model-specific register. +On other models, it is set to an arbitrary value based on weak heuristics. +If these heuristics don't work for you, you can pass the correct TjMax value +as a module parameter (tjmax). Appendix A. Known TjMax lists (TBD): Some information comes from ark.intel.com diff --git a/Documentation/hwmon/it87 b/Documentation/hwmon/it87 index 38425f0f264..6f496a58673 100644 --- a/Documentation/hwmon/it87 +++ b/Documentation/hwmon/it87 @@ -76,7 +76,8 @@ IT8718F, IT8720F, IT8721F, IT8726F, IT8758E and SiS950 chips. These chips are 'Super I/O chips', supporting floppy disks, infrared ports, joysticks and other miscellaneous stuff. For hardware monitoring, they include an 'environment controller' with 3 temperature sensors, 3 fan -rotation speed sensors, 8 voltage sensors, and associated alarms. +rotation speed sensors, 8 voltage sensors, associated alarms, and chassis +intrusion detection. The IT8712F and IT8716F additionally feature VID inputs, used to report the Vcore voltage of the processor. The early IT8712F have 5 VID pins, diff --git a/Documentation/hwmon/lm25066 b/Documentation/hwmon/lm25066 new file mode 100644 index 00000000000..a21db81c459 --- /dev/null +++ b/Documentation/hwmon/lm25066 @@ -0,0 +1,90 @@ +Kernel driver max8688 +===================== + +Supported chips: + * National Semiconductor LM25066 + Prefix: 'lm25066' + Addresses scanned: - + Datasheets: + http://www.national.com/pf/LM/LM25066.html + http://www.national.com/pf/LM/LM25066A.html + * National Semiconductor LM5064 + Prefix: 'lm5064' + Addresses scanned: - + Datasheet: + http://www.national.com/pf/LM/LM5064.html + * National Semiconductor LM5066 + Prefix: 'lm5066' + Addresses scanned: - + Datasheet: + http://www.national.com/pf/LM/LM5066.html + +Author: Guenter Roeck <guenter.roeck@ericsson.com> + + +Description +----------- + +This driver supports hardware montoring for National Semiconductor LM25066, +LM5064, and LM5064 Power Management, Monitoring, Control, and Protection ICs. + +The driver is a client driver to the core PMBus driver. Please see +Documentation/hwmon/pmbus for details on PMBus client drivers. + + +Usage Notes +----------- + +This driver does not auto-detect devices. You will have to instantiate the +devices explicitly. Please see Documentation/i2c/instantiating-devices for +details. + + +Platform data support +--------------------- + +The driver supports standard PMBus driver platform data. + + +Sysfs entries +------------- + +The following attributes are supported. Limits are read-write; all other +attributes are read-only. + +in1_label "vin" +in1_input Measured input voltage. +in1_average Average measured input voltage. +in1_min Minimum input voltage. +in1_max Maximum input voltage. +in1_min_alarm Input voltage low alarm. +in1_max_alarm Input voltage high alarm. + +in2_label "vout1" +in2_input Measured output voltage. +in2_average Average measured output voltage. +in2_min Minimum output voltage. +in2_min_alarm Output voltage low alarm. + +in3_label "vout2" +in3_input Measured voltage on vaux pin + +curr1_label "iin" +curr1_input Measured input current. +curr1_average Average measured input current. +curr1_max Maximum input current. +curr1_max_alarm Input current high alarm. + +power1_label "pin" +power1_input Measured input power. +power1_average Average measured input power. +power1_max Maximum input power limit. +power1_alarm Input power alarm +power1_input_highest Historical maximum power. +power1_reset_history Write any value to reset maximum power history. + +temp1_input Measured temperature. +temp1_max Maximum temperature. +temp1_crit Critical high temperature. +temp1_max_alarm Chip temperature high alarm. +temp1_crit_alarm Chip temperature critical high alarm. diff --git a/Documentation/hwmon/lm78 b/Documentation/hwmon/lm78 index 60932e26aba..2bdc881a0c1 100644 --- a/Documentation/hwmon/lm78 +++ b/Documentation/hwmon/lm78 @@ -13,7 +13,8 @@ Supported chips: Datasheet: Publicly available at the National Semiconductor website http://www.national.com/ -Author: Frodo Looijaard <frodol@dds.nl> +Authors: Frodo Looijaard <frodol@dds.nl> + Jean Delvare <khali@linux-fr.org> Description ----------- diff --git a/Documentation/hwmon/lm90 b/Documentation/hwmon/lm90 index f3efd18e87f..9cd14cfe651 100644 --- a/Documentation/hwmon/lm90 +++ b/Documentation/hwmon/lm90 @@ -113,7 +113,11 @@ Supported chips: Prefix: 'w83l771' Addresses scanned: I2C 0x4c Datasheet: Not publicly available, can be requested from Nuvoton - + * Philips/NXP SA56004X + Prefix: 'sa56004' + Addresses scanned: I2C 0x48 through 0x4F + Datasheet: Publicly available at NXP website + http://ics.nxp.com/products/interface/datasheet/sa56004x.pdf Author: Jean Delvare <khali@linux-fr.org> @@ -193,6 +197,9 @@ W83L771AWG/ASG * The AWG and ASG variants only differ in package format. * Diode ideality factor configuration (remote sensor) at 0xE3 +SA56004X: + * Better local resolution + All temperature values are given in degrees Celsius. Resolution is 1.0 degree for the local temperature, 0.125 degree for the remote temperature, except for the MAX6657, MAX6658 and MAX6659 which have a diff --git a/Documentation/hwmon/lm95245 b/Documentation/hwmon/lm95245 new file mode 100644 index 00000000000..cbd8aeab712 --- /dev/null +++ b/Documentation/hwmon/lm95245 @@ -0,0 +1,33 @@ +Kernel driver lm95245 +================== + +Supported chips: + * National Semiconductor LM95245 + Addresses scanned: I2C 0x18, 0x19, 0x29, 0x4c, 0x4d + Datasheet: Publicly available at the National Semiconductor website + http://www.national.com/mpf/LM/LM95245.html + + +Author: Alexander Stein <alexander.stein@systec-electronic.com> + +Description +----------- + +The LM95245 is an 11-bit digital temperature sensor with a 2-wire System +Management Bus (SMBus) interface and TruTherm technology that can monitor +the temperature of a remote diode as well as its own temperature. +The LM95245 can be used to very accurately monitor the temperature of +external devices such as microprocessors. + +All temperature values are given in millidegrees Celsius. Local temperature +is given within a range of -127 to +127.875 degrees. Remote temperatures are +given within a range of -127 to +255 degrees. Resolution depends on +temperature input and range. + +Each sensor has its own critical limit, but the hysteresis is common to all +two channels. + +The lm95245 driver can change its update interval to a fixed set of values. +It will round up to the next selectable interval. See the datasheet for exact +values. Reading sensor values more often will do no harm, but will return +'old' values. diff --git a/Documentation/hwmon/max16064 b/Documentation/hwmon/max16064 index 41728999e14..f6e8bcbfacc 100644 --- a/Documentation/hwmon/max16064 +++ b/Documentation/hwmon/max16064 @@ -50,6 +50,8 @@ in[1-4]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status. in[1-4]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status. in[1-4]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status. in[1-4]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status. +in[1-4]_highest Historical maximum voltage. +in[1-4]_reset_history Write any value to reset history. temp1_input Measured temperature. From READ_TEMPERATURE_1 register. temp1_max Maximum temperature. From OT_WARN_LIMIT register. @@ -60,3 +62,5 @@ temp1_max_alarm Chip temperature high alarm. Set by comparing temp1_crit_alarm Chip temperature critical high alarm. Set by comparing READ_TEMPERATURE_1 with OT_FAULT_LIMIT if TEMP_OT_FAULT status is set. +temp1_highest Historical maximum temperature. +temp1_reset_history Write any value to reset history. diff --git a/Documentation/hwmon/max16065 b/Documentation/hwmon/max16065 index 44b4f61e04f..c11f64a1f2a 100644 --- a/Documentation/hwmon/max16065 +++ b/Documentation/hwmon/max16065 @@ -62,6 +62,13 @@ can be safely used to identify the chip. You will have to instantiate the devices explicitly. Please see Documentation/i2c/instantiating-devices for details. +WARNING: Do not access chip registers using the i2cdump command, and do not use +any of the i2ctools commands on a command register (0xa5 to 0xac). The chips +supported by this driver interpret any access to a command register (including +read commands) as request to execute the command in question. This may result in +power loss, board resets, and/or Flash corruption. Worst case, your board may +turn into a brick. + Sysfs entries ------------- diff --git a/Documentation/hwmon/max1668 b/Documentation/hwmon/max1668 new file mode 100644 index 00000000000..0616ed9758d --- /dev/null +++ b/Documentation/hwmon/max1668 @@ -0,0 +1,60 @@ +Kernel driver max1668 +===================== + +Supported chips: + * Maxim MAX1668, MAX1805 and MAX1989 + Prefix: 'max1668' + Addresses scanned: I2C 0x18, 0x19, 0x1a, 0x29, 0x2a, 0x2b, 0x4c, 0x4d, 0x4e + Datasheet: http://datasheets.maxim-ic.com/en/ds/MAX1668-MAX1989.pdf + +Author: + David George <david.george@ska.ac.za> + +Description +----------- + +This driver implements support for the Maxim MAX1668, MAX1805 and MAX1989 +chips. + +The three devices are very similar, but the MAX1805 has a reduced feature +set; only two remote temperature inputs vs the four avaible on the other +two ICs. + +The driver is able to distinguish between the devices and creates sysfs +entries as follows: + +MAX1805, MAX1668 and MAX1989: + +temp1_input ro local (ambient) temperature +temp1_max rw local temperature maximum threshold for alarm +temp1_max_alarm ro local temperature maximum threshold alarm +temp1_min rw local temperature minimum threshold for alarm +temp1_min_alarm ro local temperature minimum threshold alarm +temp2_input ro remote temperature 1 +temp2_max rw remote temperature 1 maximum threshold for alarm +temp2_max_alarm ro remote temperature 1 maximum threshold alarm +temp2_min rw remote temperature 1 minimum threshold for alarm +temp2_min_alarm ro remote temperature 1 minimum threshold alarm +temp3_input ro remote temperature 2 +temp3_max rw remote temperature 2 maximum threshold for alarm +temp3_max_alarm ro remote temperature 2 maximum threshold alarm +temp3_min rw remote temperature 2 minimum threshold for alarm +temp3_min_alarm ro remote temperature 2 minimum threshold alarm + +MAX1668 and MAX1989 only: +temp4_input ro remote temperature 3 +temp4_max rw remote temperature 3 maximum threshold for alarm +temp4_max_alarm ro remote temperature 3 maximum threshold alarm +temp4_min rw remote temperature 3 minimum threshold for alarm +temp4_min_alarm ro remote temperature 3 minimum threshold alarm +temp5_input ro remote temperature 4 +temp5_max rw remote temperature 4 maximum threshold for alarm +temp5_max_alarm ro remote temperature 4 maximum threshold alarm +temp5_min rw remote temperature 4 minimum threshold for alarm +temp5_min_alarm ro remote temperature 4 minimum threshold alarm + +Module Parameters +----------------- + +* read_only: int + Set to non-zero if you wish to prevent write access to alarm thresholds. diff --git a/Documentation/hwmon/max34440 b/Documentation/hwmon/max34440 index 6c525dd07d5..8ab51536a1e 100644 --- a/Documentation/hwmon/max34440 +++ b/Documentation/hwmon/max34440 @@ -56,6 +56,8 @@ in[1-6]_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status. in[1-6]_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status. in[1-6]_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status. in[1-6]_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status. +in[1-6]_highest Historical maximum voltage. +in[1-6]_reset_history Write any value to reset history. curr[1-6]_label "iout[1-6]". curr[1-6]_input Measured current. From READ_IOUT register. @@ -63,6 +65,8 @@ curr[1-6]_max Maximum current. From IOUT_OC_WARN_LIMIT register. curr[1-6]_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register. curr[1-6]_max_alarm Current high alarm. From IOUT_OC_WARNING status. curr[1-6]_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status. +curr[1-6]_highest Historical maximum current. +curr[1-6]_reset_history Write any value to reset history. in6 and curr6 attributes only exist for MAX34440. @@ -75,5 +79,7 @@ temp[1-8]_max Maximum temperature. From OT_WARN_LIMIT register. temp[1-8]_crit Critical high temperature. From OT_FAULT_LIMIT register. temp[1-8]_max_alarm Temperature high alarm. temp[1-8]_crit_alarm Temperature critical high alarm. +temp[1-8]_highest Historical maximum temperature. +temp[1-8]_reset_history Write any value to reset history. temp7 and temp8 attributes only exist for MAX34440. diff --git a/Documentation/hwmon/max8688 b/Documentation/hwmon/max8688 index 0ddd3a41203..71ed10a3c94 100644 --- a/Documentation/hwmon/max8688 +++ b/Documentation/hwmon/max8688 @@ -50,6 +50,8 @@ in1_min_alarm Voltage low alarm. From VOLTAGE_UV_WARNING status. in1_max_alarm Voltage high alarm. From VOLTAGE_OV_WARNING status. in1_lcrit_alarm Voltage critical low alarm. From VOLTAGE_UV_FAULT status. in1_crit_alarm Voltage critical high alarm. From VOLTAGE_OV_FAULT status. +in1_highest Historical maximum voltage. +in1_reset_history Write any value to reset history. curr1_label "iout1" curr1_input Measured current. From READ_IOUT register. @@ -57,6 +59,8 @@ curr1_max Maximum current. From IOUT_OC_WARN_LIMIT register. curr1_crit Critical maximum current. From IOUT_OC_FAULT_LIMIT register. curr1_max_alarm Current high alarm. From IOUT_OC_WARN_LIMIT register. curr1_crit_alarm Current critical high alarm. From IOUT_OC_FAULT status. +curr1_highest Historical maximum current. +curr1_reset_history Write any value to reset history. temp1_input Measured temperature. From READ_TEMPERATURE_1 register. temp1_max Maximum temperature. From OT_WARN_LIMIT register. @@ -67,3 +71,5 @@ temp1_max_alarm Chip temperature high alarm. Set by comparing temp1_crit_alarm Chip temperature critical high alarm. Set by comparing READ_TEMPERATURE_1 with OT_FAULT_LIMIT if TEMP_OT_FAULT status is set. +temp1_highest Historical maximum temperature. +temp1_reset_history Write any value to reset history. diff --git a/Documentation/hwmon/ntc_thermistor b/Documentation/hwmon/ntc_thermistor new file mode 100644 index 00000000000..3bfda94096f --- /dev/null +++ b/Documentation/hwmon/ntc_thermistor @@ -0,0 +1,93 @@ +Kernel driver ntc_thermistor +================= + +Supported thermistors: +* Murata NTC Thermistors NCP15WB473, NCP18WB473, NCP21WB473, NCP03WB473, NCP15WL333 + Prefixes: 'ncp15wb473', 'ncp18wb473', 'ncp21wb473', 'ncp03wb473', 'ncp15wl333' + Datasheet: Publicly available at Murata + +Other NTC thermistors can be supported simply by adding compensation +tables; e.g., NCP15WL333 support is added by the table ncpXXwl333. + +Authors: + MyungJoo Ham <myungjoo.ham@samsung.com> + +Description +----------- + +The NTC thermistor is a simple thermistor that requires users to provide the +resistance and lookup the corresponding compensation table to get the +temperature input. + +The NTC driver provides lookup tables with a linear approximation function +and four circuit models with an option not to use any of the four models. + +The four circuit models provided are: + + $: resister, [TH]: the thermistor + + 1. connect = NTC_CONNECTED_POSITIVE, pullup_ohm > 0 + + [pullup_uV] + | | + [TH] $ (pullup_ohm) + | | + +----+-----------------------[read_uV] + | + $ (pulldown_ohm) + | + --- (ground) + + 2. connect = NTC_CONNECTED_POSITIVE, pullup_ohm = 0 (not-connected) + + [pullup_uV] + | + [TH] + | + +----------------------------[read_uV] + | + $ (pulldown_ohm) + | + --- (ground) + + 3. connect = NTC_CONNECTED_GROUND, pulldown_ohm > 0 + + [pullup_uV] + | + $ (pullup_ohm) + | + +----+-----------------------[read_uV] + | | + [TH] $ (pulldown_ohm) + | | + -------- (ground) + + 4. connect = NTC_CONNECTED_GROUND, pulldown_ohm = 0 (not-connected) + + [pullup_uV] + | + $ (pullup_ohm) + | + +----------------------------[read_uV] + | + [TH] + | + --- (ground) + +When one of the four circuit models is used, read_uV, pullup_uV, pullup_ohm, +pulldown_ohm, and connect should be provided. When none of the four models +are suitable or the user can get the resistance directly, the user should +provide read_ohm and _not_ provide the others. + +Sysfs Interface +--------------- +name the mandatory global attribute, the thermistor name. + +temp1_type always 4 (thermistor) + RO + +temp1_input measure the temperature and provide the measured value. + (reading this file initiates the reading procedure.) + RO + +Note that each NTC thermistor has only _one_ thermistor; thus, only temp1 exists. diff --git a/Documentation/hwmon/pmbus b/Documentation/hwmon/pmbus index 5e462fc7f99..c36c1c1a62b 100644 --- a/Documentation/hwmon/pmbus +++ b/Documentation/hwmon/pmbus @@ -13,6 +13,13 @@ Supported chips: Prefix: 'ltc2978' Addresses scanned: - Datasheet: http://cds.linear.com/docs/Datasheet/2978fa.pdf + * ON Semiconductor ADP4000, NCP4200, NCP4208 + Prefixes: 'adp4000', 'ncp4200', 'ncp4208' + Addresses scanned: - + Datasheets: + http://www.onsemi.com/pub_link/Collateral/ADP4000-D.PDF + http://www.onsemi.com/pub_link/Collateral/NCP4200-D.PDF + http://www.onsemi.com/pub_link/Collateral/JUNE%202009-%20REV.%200.PDF * Generic PMBus devices Prefix: 'pmbus' Addresses scanned: - diff --git a/Documentation/hwmon/sch5636 b/Documentation/hwmon/sch5636 new file mode 100644 index 00000000000..f83bd1c260f --- /dev/null +++ b/Documentation/hwmon/sch5636 @@ -0,0 +1,31 @@ +Kernel driver sch5636 +===================== + +Supported chips: + * SMSC SCH5636 + Prefix: 'sch5636' + Addresses scanned: none, address read from Super I/O config space + +Author: Hans de Goede <hdegoede@redhat.com> + + +Description +----------- + +SMSC SCH5636 Super I/O chips include an embedded microcontroller for +hardware monitoring solutions, allowing motherboard manufacturers to create +their own custom hwmon solution based upon the SCH5636. + +Currently the sch5636 driver only supports the Fujitsu Theseus SCH5636 based +hwmon solution. The sch5636 driver runs a sanity check on loading to ensure +it is dealing with a Fujitsu Theseus and not with another custom SCH5636 based +hwmon solution. + +The Fujitsu Theseus can monitor up to 5 voltages, 8 fans and 16 +temperatures. Note that the driver detects how many fan headers / +temperature sensors are actually implemented on the motherboard, so you will +likely see fewer temperature and fan inputs. + +An application note describing the Theseus' registers, as well as an +application note describing the protocol for communicating with the +microcontroller is available upon request. Please mail me if you want a copy. diff --git a/Documentation/hwmon/sysfs-interface b/Documentation/hwmon/sysfs-interface index 8f63c244f1a..a4aa8f600e0 100644 --- a/Documentation/hwmon/sysfs-interface +++ b/Documentation/hwmon/sysfs-interface @@ -139,6 +139,29 @@ in[0-*]_input Voltage input value. thumb: drivers should report the voltage values at the "pins" of the chip. +in[0-*]_average + Average voltage + Unit: millivolt + RO + +in[0-*]_lowest + Historical minimum voltage + Unit: millivolt + RO + +in[0-*]_highest + Historical maximum voltage + Unit: millivolt + RO + +in[0-*]_reset_history + Reset inX_lowest and inX_highest + WO + +in_reset_history + Reset inX_lowest and inX_highest for all sensors + WO + in[0-*]_label Suggested voltage channel label. Text string Should only be created if the driver has hints about what @@ -407,6 +430,29 @@ curr[1-*]_input Current input value Unit: milliampere RO +curr[1-*]_average + Average current use + Unit: milliampere + RO + +curr[1-*]_lowest + Historical minimum current + Unit: milliampere + RO + +curr[1-*]_highest + Historical maximum current + Unit: milliampere + RO + +curr[1-*]_reset_history + Reset currX_lowest and currX_highest + WO + +curr_reset_history + Reset currX_lowest and currX_highest for all sensors + WO + Also see the Alarms section for status flags associated with currents. ********* diff --git a/Documentation/i2o/ioctl b/Documentation/i2o/ioctl index 1e77fac4e12..22ca53a67e2 100644 --- a/Documentation/i2o/ioctl +++ b/Documentation/i2o/ioctl @@ -110,7 +110,7 @@ V. Getting Logical Configuration Table ENOBUFS Buffer not large enough. If this occurs, the required buffer length is written into *(lct->reslen) -VI. Settting Parameters +VI. Setting Parameters SYNOPSIS diff --git a/Documentation/ioctl/ioctl-number.txt b/Documentation/ioctl/ioctl-number.txt index 3a46e360496..54078ed96b3 100644 --- a/Documentation/ioctl/ioctl-number.txt +++ b/Documentation/ioctl/ioctl-number.txt @@ -292,6 +292,7 @@ Code Seq#(hex) Include File Comments <mailto:buk@buks.ipn.de> 0xA0 all linux/sdp/sdp.h Industrial Device Project <mailto:kenji@bitgate.com> +0xA2 00-0F arch/tile/include/asm/hardwall.h 0xA3 80-8F Port ACL in development: <mailto:tlewis@mindspring.com> 0xA3 90-9F linux/dtlk.h @@ -301,6 +302,7 @@ Code Seq#(hex) Include File Comments <mailto:rusty@rustcorp.com.au> 0xAE all linux/kvm.h Kernel-based Virtual Machine <mailto:kvm@vger.kernel.org> +0xAF 00-1F linux/fsl_hypervisor.h Freescale hypervisor 0xB0 all RATIO devices in development: <mailto:vgo@ratio.de> 0xB1 00-1F PPPoX <mailto:mostrows@styx.uwaterloo.ca> @@ -317,4 +319,6 @@ Code Seq#(hex) Include File Comments <mailto:thomas@winischhofer.net> 0xF4 00-1F video/mbxfb.h mbxfb <mailto:raph@8d.com> +0xF6 all LTTng Linux Trace Toolkit Next Generation + <mailto:mathieu.desnoyers@efficios.com> 0xFD all linux/dm-ioctl.h diff --git a/Documentation/isdn/README.HiSax b/Documentation/isdn/README.HiSax index 99e87a61897..b1a573cf447 100644 --- a/Documentation/isdn/README.HiSax +++ b/Documentation/isdn/README.HiSax @@ -506,7 +506,7 @@ to e.g. the Internet: <ISDN subsystem - ISDN support -- HiSax> make clean; make zImage; make modules; make modules_install 2. Install the new kernel - cp /usr/src/linux/arch/i386/boot/zImage /etc/kernel/linux.isdn + cp /usr/src/linux/arch/x86/boot/zImage /etc/kernel/linux.isdn vi /etc/lilo.conf <add new kernel in the bootable image section> lilo diff --git a/Documentation/ja_JP/SubmittingPatches b/Documentation/ja_JP/SubmittingPatches index f107c834d24..97f78dd0c08 100644 --- a/Documentation/ja_JP/SubmittingPatches +++ b/Documentation/ja_JP/SubmittingPatches @@ -11,16 +11,18 @@ for non English (read: Japanese) speakers and is not intended as a fork. So if you have any comments or updates of this file, please try to update the original English file first. -Last Updated: 2007/10/24 +Last Updated: 2011/06/09 + ================================== これは、 -linux-2.6.23/Documentation/SubmittingPatches の和訳 +linux-2.6.39/Documentation/SubmittingPatches の和訳 です。 翻訳団体： JF プロジェクト < http://www.linux.or.jp/JF/ > -翻訳日： 2007/10/17 +翻訳日： 2011/06/09 翻訳者： Keiichi Kii <k-keiichi at bx dot jp dot nec dot com> 校正者： Masanari Kobayashi さん <zap03216 at nifty dot ne dot jp> Matsukura さん <nbh--mats at nifty dot com> + Takeshi Hamasaki さん <hmatrjp at users dot sourceforge dot jp> ================================== Linux カーネルに変更を加えるための Howto @@ -97,7 +99,7 @@ Quilt: http://savannah.nongnu.org/projects/quilt Andrew Morton's patch scripts: -http://userweb.kernel.org/~akpm/stuff/tpp.txt +http://userweb.kernel.org/~akpm/stuff/patch-scripts.tar.gz このリンクの先のスクリプトの代わりとして、quilt がパッチマネジメント ツールとして推奨されています(上のリンクを見てください)。 @@ -109,9 +111,25 @@ http://userweb.kernel.org/~akpm/stuff/tpp.txt 「ドライバー X に対するバグフィックス」あるいは「このパッチはサブシス テム X に対する更新を含んでいます。どうか取り入れてください。」などです。 +パッチの説明を Linux カーネルのソースコードマネジメントシステム「 git 」の +コミットログとして簡単に引用できる形で書けば、メンテナから感謝されるでしょう。 +以下の #15 を見てください。 + 説明が長くなりだしたのであれば、おそらくそれはパッチを分ける必要がある という兆候です。次の #3 を見てください。 +パッチ(シリーズ)を(再)投稿する時、十分なパッチの説明とそのパッチが必要な理由を +パッチに含めてください。ただ「これはパッチ(シリーズ)のバージョン N」とだけ +書かないでください。そして、パッチをマージする人にパッチの説明を探させそれを +パッチに追記させるため、過去のバージョンのパッチやそのパッチの URL を参照する +手間をかけさせないでください。 +つまり、パッチシリーズとその説明は一緒にあるべきです。これはパッチをマージする +人、レビューする人、どちらのためにもなります。レビューする人の中には、おそらく +過去のバージョンのパッチを受け取ってもいない人がいます。 + +登録済みのバグエントリを修正するパッチであれば、そのバグエントリを示すバグ ID +や URL を明記してください。 + 3) パッチの分割 意味のあるひとまとまりごとに変更を個々のパッチファイルに分けてください。 @@ -141,7 +159,7 @@ http://userweb.kernel.org/~akpm/stuff/tpp.txt 拒否されるでしょう。 あなたはパッチを投稿する前に最低限パッチスタイルチェッカー -( scripts/patchcheck.pl )を利用してパッチをチェックすべきです。 +( scripts/checkpatch.pl )を利用してパッチをチェックすべきです。 もしパッチに違反がのこっているならば、それらの全てについてあなたは正当な 理由を示せるようにしておく必要があります。 @@ -192,13 +210,13 @@ VGER.KERNEL.ORG でホスティングされているメーリングリストの 情報がマニュアルページの中に入ってくるように、変更が起きたという 通知を送ってください。 -たとえ、メンテナが #4 で反応がなかったとしても、メンテナのコードに変更を +たとえ、メンテナが #5 で反応がなかったとしても、メンテナのコードに変更を 加えたときには、いつもメンテナに CC するのを忘れないようにしてください。 -小さなパッチであれば、Adrian Bunk が管理している Trivial Patch Monkey -(ちょっとしたパッチを集めている)<trivial@kernel.org>に CC してもいい -です。ちょっとしたパッチとは以下のルールのどれか1つを満たしていなけ -ればなりません。 +小さなパッチであれば、Trivial Patch Monkey(ちょっとしたパッチを集めている) +<trivial@kernel.org>に CC してもいいです。その現管理者については MAINTAINERS +ファイルを見てください。ちょっとしたパッチとは以下のルールのどれか1つを満たして +いなければなりません。 ・ドキュメントのスペルミスの修正 ・grep(1) コマンドによる検索を困難にしているスペルの修正 ・コンパイル時の警告の修正(無駄な警告が散乱することは好ましくないた @@ -210,7 +228,6 @@ VGER.KERNEL.ORG でホスティングされているメーリングリストの ・移植性のないコードから移植性のあるコードへの置き換え(小さい範囲で あればアーキテクチャ特有のことでも他の人がコピーできます) ・作者やメンテナによる修正(すなわち patch monkey の再転送モード) -EMAIL: <trivial@kernel.org> 7) MIME やリンクや圧縮ファイルや添付ファイルではなくプレインテキストのみ @@ -233,26 +250,15 @@ MIME 形式の添付ファイルは Linus に手間を取らせることにな 例外：お使いの電子メールクライアントがパッチをめちゃくちゃにするので あれば、誰かが MIME 形式のパッチを再送するよう求めるかもしれません。 -警告： Mozilla のような特定の電子メールクライアントは電子メールの -ヘッダに以下のものを付加して送ります。 ----- message header ---- -Content-Type: text/plain; charset=us-ascii; format=flowed ----- message header ---- -問題は、「 format=flowed 」が付いた電子メールを特定の受信側の電子メール -クライアントがタブをスペースに置き換えるというような変更をすることです。 -したがって送られてきたパッチは壊れているように見えるでしょう。 - -これを修正するには、mozilla の defaults/pref/mailnews.js ファイルを -以下のように修正します。 -pref("mailnews.send_plaintext_flowed", false); // RFC 2646======= -pref("mailnews.display.disable_format_flowed_support", true); +余計な変更を加えずにあなたのパッチを送信するための電子メールクライアントの設定 +のヒントについては Documentation/email-clients.txt を参照してください。 8) 電子メールのサイズ パッチを Linus へ送るときは常に #7 の手順に従ってください。 大きなパッチはメーリングリストやメンテナにとって不親切です。パッチが -未圧縮で 40KB を超えるようであるなら、インターネット上のアクセス可能な +未圧縮で 300KB を超えるようであるなら、インターネット上のアクセス可能な サーバに保存し、保存場所を示す URL を伝えるほうが適切です。 9) カーネルバージョンの明記 @@ -324,7 +330,7 @@ Linus や LKML への大量の電子メールのために、サブジェクト (c) 本寄与は(a)、(b)、(c)を証明する第3者から私へ直接提供された ものであり、私はそれに変更を加えていない。 - (d) 私はこのプロジェクトと本寄与が公のものであることに理解及び同意す + (d) 私はこのプロジェクトと本寄与が公のものであることに理解及び同意す る。同時に、関与した記録(投稿の際の全ての個人情報と sign-off を 含む)が無期限に保全されることと、当該プロジェクト又は関連する オープンソースライセンスに沿った形で再配布されることに理解及び @@ -340,7 +346,51 @@ Linus や LKML への大量の電子メールのために、サブジェクト 無視されますが、あなたはそのタグを社内の手続きに利用したり、sign-off に特別 な情報を示したりすることができます。 -13) いつ Acked-by: を使うのか +あなたがサブシステムまたはブランチのメンテナであれば、受け取ったパッチを自身の +ツリーにマージするために、わずかに変更が必要となる場合があります。なぜなら +あなたのツリーの中のコードと投稿者のツリーの中のコードは同一ではないためです。 +もし、あなたが厳密に上記ルール(c)にこだわるのであれば、投稿者に再度差分を +とるよう依頼すべきです。しかし、これは時間とエネルギーを非生産的に浪費する +ことになります。ルール(b)はあなたにコードを修正する権利を与えてくれます。 +しかし、投稿者のコードを修正し、その修正によるバグを投稿者に押し付けてしまう +ことはとても失礼なことです。この問題を解決するために、末尾の投稿者の +Signed-off-by とあなたがその末尾に追加する Signed-off-by の間に、修正を +加えたことを示す1行を追加することが推奨されています。 +(その1行の書き方に)決まりはありませんが、大括弧の中に電子メールアドレスや氏名 +と修正内容を記載するやり方は目につきやすく、最終段階での変更の責任があなたに +あることを明確にするのに十分な方法のようです。例えば、 + + Signed-off-by: Random J Developer <random@developer.example.org> + [lucky@maintainer.example.org: struct foo moved from foo.c to foo.h] + Signed-off-by: Lucky K Maintainer <lucky@maintainer.example.org> + +あなたが安定版のブランチを管理しており、作成者のクレジット、変更の追跡、 +修正のマージ、と同時に苦情からの投稿者の保護を行いたい場合、この慣習は特に +有用となります。いかなる事情があってもチェンジログに出てくる作成者の +アイデンティティ情報(From ヘッダ)は変更できないことに注意してください。 + +バックポートする人のための特別な注意事項。追跡を容易に行うために、コミット +メッセージのトップ(サブジェクト行のすぐ後)にパッチの起源を示す情報を記述する +ことは一般的で有用な慣習です。例えば、これは 2.6-stable ツリーでの一例です。 + + Date: Tue May 13 19:10:30 2008 +0000 + + SCSI: libiscsi regression in 2.6.25: fix nop timer handling + + commit 4cf1043593db6a337f10e006c23c69e5fc93e722 upstream + +そして、これは 2.4 ツリーでの一例です。 + + Date: Tue May 13 22:12:27 2008 +0200 + + wireless, airo: waitbusy() won't delay + + [backport of 2.6 commit b7acbdfbd1f277c1eb23f344f899cfa4cd0bf36a] + +どんな形式であれ、この情報はあなたのツリーを追跡する人やあなたのツリーのバグを +解決しようとしている人にとって価値のある支援となります。 + +13) いつ Acked-by: と Cc: を使うのか 「 Signed-off-by: 」タグはその署名者がパッチの開発に関わっていたことやパッチ の伝播パスにいたことを示しています。 @@ -354,7 +404,7 @@ Linus や LKML への大量の電子メールのために、サブジェクト Acked-by: は Signed-off-by: のように公式なタグではありません。それはメンテナが 少なくともパッチをレビューし、同意を示しているという記録です。そのような -ことからパッチの統合者がメンテナの「うん、良いと思うよ」という発言を +ことからパッチをマージする人がメンテナの「うん、良いと思うよ」という発言を Acked-by: へ置き換えることがあります。 Acked-by: が必ずしもパッチ全体の承認を示しているわけではありません。例えば、 @@ -364,7 +414,62 @@ Acked-by: が必ずしもパッチ全体の承認を示しているわけでは この点は、ご自分で判断してください。(その Acked-by: が)疑わしい場合は、 メーリングリストアーカイブの中の大元の議論を参照すべきです。 -14) 標準的なパッチのフォーマット +パッチにコメントする機会を持っていたが、その時にコメントしなかった人がいれば、 +その人を指す「Cc:」タグを任意で追加してもかまいません。これは指定された人からの +明確なアクションなしに付与できる唯一のタグです。 +このタグはパッチに関心があると思われる人達がそのパッチの議論に含まれていたこと +を明文化します。 + +14) Reported-by と Tested-by: と Reviewed-by: の利用 + +他の誰かによって報告された問題を修正するパッチであれば、問題報告者という寄与を +クレジットするために、Reported-by: タグを追加することを検討してください。 +こまめにバグ報告者をクレジットしていくことで、うまくいけばその人たちが将来再び +コミュニティの力となってくれるでしょう。 +ただし、報告者の許可無くこのタグを追加しないように注意してください。特に、 +問題が公の場で報告されていなかったのであれば。 + +Tested-by: タグはタグで指定された人によって(ある環境下で)パッチのテストに成功 +していることを示します。このタグはメンテナにテストが実施済みであることを +知らせ、将来の関連パッチのテスト協力者を見つける方法を提供し、テスト実施者に +対するクレジットを保証します。 + +Reviewed-by: タグは、それとは異なり、下記のレビューア宣言の下にレビューされ、 +受け入れ可能とみなされたパッチであることを示します。 + + レビューアによる監督宣言 + + 私は Reviewed-by: タグを提示することによって、以下のことを明言する。 + + (a) 私はメインラインカーネルへの統合に向け、その妥当性及び「即応性 + (訳注)」を検証し、技術的側面からパッチをレビュー済みである。 + + 訳注: + 「即応性」の原文は "readiness"。 + パッチが十分な品質を持っており、メインラインカーネルへの統合を即座に + 行うことができる状態であるかどうかを "readiness" という単語で表現 + している。 + + (b) パッチに関するあらゆる問題、懸念、あるいは、疑問は投稿者へ伝達済み + である。私はそれらのコメントに対する投稿者の返答に満足している。 + + (c) 投稿に伴い改良されるコードがある一方で、現時点で、私は(1)それが + カーネルにとって価値のある変更であること、そして、(2)統合に際して + 議論になり得るような問題はないものと確信している。 + + (d) 私はパッチをレビューし適切であると確信している一方で、あらゆる + 状況においてその宣言した目的や機能が正しく実現することに関して、 + いかなる保証もしない(特にどこかで明示しない限り)。 + +Reviewd-by タグはそのパッチがカーネルに対して適切な修正であって、深刻な技術的 +問題を残していないという意見の宣言です。興味のあるレビューアは誰でも(レビュー +作業を終えたら)パッチに対して Reviewed-by タグを提示できます。このタグは +レビューアの寄与をクレジットする働き、レビューの進捗の度合いをメンテナに +知らせる働きを持ちます。そのパッチの領域に詳しく、そして、しっかりとした +レビューを実施したレビューアによって提供される時、Reviewed-by: タグがあなたの +パッチをカーネルにマージする可能性を高めるでしょう。 + +15) 標準的なパッチのフォーマット 標準的なパッチのサブジェクトは以下のとおりです。 @@ -396,18 +501,37 @@ Acked-by: が必ずしもパッチ全体の承認を示しているわけでは 電子メールのサブジェクト内のサブシステム表記は、パッチが適用される 分野またはサブシステムを識別できるようにすべきです。 -電子メールのサブジェクトの「概要の言い回し」はそのパッチの概要を正確 -に表現しなければなりません。「概要の言い回し」をファイル名にしてはい -けません。一連のパッチ中でそれぞれのパッチは同じ「概要の言い回し」を -使ってはいけません(「一連のパッチ」とは順序付けられた関連のある複数の +電子メールのサブジェクトの「summary phrase」はそのパッチの概要を正確 +に表現しなければなりません。「summary phrase」をファイル名にしてはい +けません。パッチシリーズ中でそれぞれのパッチは同じ「summary phrase」を +使ってはいけません(「パッチシリーズ」とは順序付けられた関連のある複数の パッチ群です)。 -あなたの電子メールの「概要の言い回し」がそのパッチにとって世界で唯 -一の識別子になるように心がけてください。「概要の言い回し」は git の -チェンジログの中へずっと伝播していきます。「概要の言い回し」は、開 -発者が後でパッチを参照するために議論の中で利用するかもしれません。 -人々はそのパッチに関連した議論を読むために「概要の言い回し」を使って -google で検索したがるでしょう。 +あなたの電子メールの「summary phrase」がそのパッチにとって世界で唯一の識別子に +なるように心がけてください。「summary phrase」は git のチェンジログの中へ +ずっと伝播していきます。「summary phrase」は、開発者が後でパッチを参照する +ために議論の中で利用するかもしれません。 +人々はそのパッチに関連した議論を読むために「summary phrase」を使って google で +検索したがるでしょう。それはまた2、3ヶ月あとで、人々が「gitk」や +「git log --oneline」のようなツールを使用して何千ものパッチに目を通す時、 +唯一目にとまる情報となるでしょう。 + +これらの理由のため、「summary phrase」はなぜパッチが必要であるか、パッチが何を +変更するかの2つの情報をせいぜい70〜75文字で表現していなければなりません。 +「summary phrase」は簡潔であり説明的である表現を目指しつつ、うまく +まとめられている概要となるべきです。 + +「summary phrase」は「Subject: [PATCH tag] <summary phrase>」のように、 +大括弧で閉じられたタグを接頭辞として付加してもかまいません。このタグは +「summary phrase」の一部とは考えませんが、パッチをどのように取り扱うべきかを +表現します。 +一般的には「v1, v2, v3」のようなバージョン情報を表すタグ(過去のパッチに対する +コメントを反映するために複数のバージョンのパッチが投稿されているのであれば)、 +「RFC」のようなコメントを要求するタグが挙げられます。パッチシリーズとして4つの +パッチがあれば、個々のパッチに「1/4, 2/4, 3/4, 4/4」のように番号を付けても +かまいません。これは開発者がパッチを適用する順番を確実に把握するためです。 +そして、開発者がパッチシリーズの中のすべてのパッチをもらさずレビュー或いは +適用するのを保証するためです。 サブジェクトの例を二つ @@ -426,7 +550,12 @@ google で検索したがるでしょう。 説明本体は無期限のソースのチェンジログにコミットされます。なので、説明 本体はそのパッチに至った議論の詳細を忘れているある程度の技量を持っている人 -がその詳細を思い出すことができるものでなければなりません。 +がその詳細を思い出すことができるものでなければなりません。パッチが対処する +障害の症状(カーネルログメッセージや oops メッセージ等)を記載することは問題に +対処可能なパッチを求めてコミットログを検索する人々にとって特に有用です。 +パッチがコンパイル問題を解決するのであれば、そのパッチを探している人が見つける +ことができる情報だけで十分であり、コンパイル時の全てのエラーを含める必要は +ありません。「summary phrase」と同様に、簡潔であり説明的であることが重要です。 「 --- 」マーカー行はパッチ処理ツールに対して、チェンジログメッセージの終端 部分を認識させるという重要な役目を果たします。 @@ -436,14 +565,46 @@ google で検索したがるでしょう。 追加され何行消されたかを示すものです。diffstat コマンドは特に大きなパッチに おいて役立ちます。その時点でだけ又はメンテナにとってのみ関係のあるコメント は無期限に保存されるチェンジログにとって適切ではありません。そのため、この -ようなコメントもマーカー行の後に書かれるべきです。ファイル名はカーネルソー -スツリーのトップディレクトリからの表記でリストされるため、横方向のスペース -をとり過ぎないように、diffstat コマンドにオプション「 -p 1 -w 70 」を指定し -てください(インデントを含めてちょうど80列に合うでしょう)。 +ようなコメントもマーカー行の後に書かれるべきです。 +このようなコメントの良い例として、v1 と v2 のバージョン間で何が変更されたかを +表す「パッチの変更履歴」が挙げられます。 + +「 --- 」マーカー行の後に diffstat コマンドの結果を含めるのであれば、ファイル +名はカーネルソースツリーのトップディレクトリからの表記で列記されるため、横方向 +のスペースをとり過ぎないように、diffstat コマンドにオプション「 -p 1 -w 70 」 +を指定してください(インデントを含めてちょうど80列に合うでしょう)。 適切なパッチのフォーマットの詳細についてはセクション3の参考文献を参照して ください。 +16) 「git pull」要求の送り方(Linus の電子メールから) + +間違ったブランチから引っ張るのを防ぐために、git リポジトリのアドレスと +ブランチ名を同じ行に1行で記載してください。そうすることで、3回の連続クリック +で全て選択できます。 + +正しい形式は下記の通りです。 + + "Please pull from + + git://jdelvare.pck.nerim.net/jdelvare-2.6 i2c-for-linus + + to get these changes:" + +その結果、アドレスを自分自身でタイピングして間違えることはなくなります(実際に、 +何度か間違ったブランチから引っ張ってきてしまい、その時に diffstat の結果を +検証して間違っていることに気づいたことがあります。どこから何を引っ張るべきかを +「探したり」、正しいブランチ名かどうかを重ねてチェックしたりする必要が +なくなればより快適になるでしょう)。 + +diffstat の結果を生成するために「 git diff -M --stat --summary 」を使って +ください。-M オプションはファイル名の変更を検知でき、--summary オプションは +新規ファイル、削除されたファイル、名前が変更されたファイルの概要を生成します。 + +-M オプション(ファイル名の変更検知)を指定すると、diffstat の結果はかなり +異なってきます。git は大規模な変更(追加と削除のペア)をファイル名の変更と +判断するためです。 + ------------------------------------ セクション2 - ヒントとTIPSと小技 ------------------------------------ @@ -459,7 +620,7 @@ google で検索したがるでしょう。 も逸脱していると、レビューやコメントなしに受け取ってもらえないかもし れません。 -唯一の特筆すべき例外は、コードをあるファイルから別のファイルに移動 +特筆すべき例外は、コードをあるファイルから別のファイルに移動 するときです。この場合、コードを移動するパッチでは、移動されるコード に関して移動以外の変更を一切加えるべきではありません。これにより、 コードの移動とあなたが行ったコードの修正を明確に区別できるようにな @@ -553,4 +714,11 @@ Kernel Documentation/CodingStyle: Linus Torvalds's mail on the canonical patch format: <http://lkml.org/lkml/2005/4/7/183> + +Andi Kleen, "On submitting kernel patches" + Some strategies to get difficult or controversial changes in. + http://halobates.de/on-submitting-patches.pdf + -- + + diff --git a/Documentation/kbuild/makefiles.txt b/Documentation/kbuild/makefiles.txt index 47435e56c5d..f47cdefb4d1 100644 --- a/Documentation/kbuild/makefiles.txt +++ b/Documentation/kbuild/makefiles.txt @@ -441,7 +441,7 @@ more details, with real examples. specified if first option are not supported. Example: - #arch/i386/kernel/Makefile + #arch/x86/kernel/Makefile vsyscall-flags += $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) In the above example, vsyscall-flags will be assigned the option @@ -460,7 +460,7 @@ more details, with real examples. supported to use an optional second option. Example: - #arch/i386/Makefile + #arch/x86/Makefile cflags-y += $(call cc-option,-march=pentium-mmx,-march=i586) In the above example, cflags-y will be assigned the option @@ -522,7 +522,7 @@ more details, with real examples. even though the option was accepted by gcc. Example: - #arch/i386/Makefile + #arch/x86/Makefile cflags-y += $(shell \ if [ $(call cc-version) -ge 0300 ] ; then \ echo "-mregparm=3"; fi ;) @@ -802,7 +802,7 @@ but in the architecture makefiles where the kbuild infrastructure is not sufficient this sometimes needs to be explicit. Example: - #arch/i386/boot/Makefile + #arch/x86/boot/Makefile subdir- := compressed/ The above assignment instructs kbuild to descend down in the @@ -812,12 +812,12 @@ To support the clean infrastructure in the Makefiles that builds the final bootimage there is an optional target named archclean: Example: - #arch/i386/Makefile + #arch/x86/Makefile archclean: - $(Q)$(MAKE) $(clean)=arch/i386/boot + $(Q)$(MAKE) $(clean)=arch/x86/boot -When "make clean" is executed, make will descend down in arch/i386/boot, -and clean as usual. The Makefile located in arch/i386/boot/ may use +When "make clean" is executed, make will descend down in arch/x86/boot, +and clean as usual. The Makefile located in arch/x86/boot/ may use the subdir- trick to descend further down. Note 1: arch/$(ARCH)/Makefile cannot use "subdir-", because that file is @@ -882,7 +882,7 @@ When kbuild executes, the following steps are followed (roughly): LDFLAGS_vmlinux uses the LDFLAGS_$@ support. Example: - #arch/i386/Makefile + #arch/x86/Makefile LDFLAGS_vmlinux := -e stext OBJCOPYFLAGS objcopy flags @@ -920,14 +920,14 @@ When kbuild executes, the following steps are followed (roughly): Often, the KBUILD_CFLAGS variable depends on the configuration. Example: - #arch/i386/Makefile + #arch/x86/Makefile cflags-$(CONFIG_M386) += -march=i386 KBUILD_CFLAGS += $(cflags-y) Many arch Makefiles dynamically run the target C compiler to probe supported options: - #arch/i386/Makefile + #arch/x86/Makefile ... cflags-$(CONFIG_MPENTIUMII) += $(call cc-option,\ @@ -1038,8 +1038,8 @@ When kbuild executes, the following steps are followed (roughly): into the arch/$(ARCH)/boot/Makefile. Example: - #arch/i386/Makefile - boot := arch/i386/boot + #arch/x86/Makefile + boot := arch/x86/boot bzImage: vmlinux $(Q)$(MAKE) $(build)=$(boot) $(boot)/$@ @@ -1051,7 +1051,7 @@ When kbuild executes, the following steps are followed (roughly): To support this, $(archhelp) must be defined. Example: - #arch/i386/Makefile + #arch/x86/Makefile define archhelp echo '* bzImage - Image (arch/$(ARCH)/boot/bzImage)' endif @@ -1065,7 +1065,7 @@ When kbuild executes, the following steps are followed (roughly): from vmlinux. Example: - #arch/i386/Makefile + #arch/x86/Makefile all: bzImage When "make" is executed without arguments, bzImage will be built. @@ -1083,7 +1083,7 @@ When kbuild executes, the following steps are followed (roughly): 2) kbuild knows what files to delete during "make clean" Example: - #arch/i386/kernel/Makefile + #arch/x86/kernel/Makefile extra-y := head.o init_task.o In this example, extra-y is used to list object files that @@ -1133,7 +1133,7 @@ When kbuild executes, the following steps are followed (roughly): Compress target. Use maximum compression to compress target. Example: - #arch/i386/boot/Makefile + #arch/x86/boot/Makefile LDFLAGS_bootsect := -Ttext 0x0 -s --oformat binary LDFLAGS_setup := -Ttext 0x0 -s --oformat binary -e begtext @@ -1193,7 +1193,7 @@ When kbuild executes, the following steps are followed (roughly): When updating the $(obj)/bzImage target, the line - BUILD arch/i386/boot/bzImage + BUILD arch/x86/boot/bzImage will be displayed with "make KBUILD_VERBOSE=0". @@ -1207,7 +1207,7 @@ When kbuild executes, the following steps are followed (roughly): kbuild knows .lds files and includes a rule *lds.S -> *lds. Example: - #arch/i386/kernel/Makefile + #arch/x86/kernel/Makefile always := vmlinux.lds #Makefile diff --git a/Documentation/kernel-docs.txt b/Documentation/kernel-docs.txt index 9a8674629a0..0e0734b509d 100644 --- a/Documentation/kernel-docs.txt +++ b/Documentation/kernel-docs.txt @@ -620,17 +620,6 @@ (including this document itself) have been moved there, and might be more up to date than the web version. - * Name: "Linux Source Driver" - URL: http://lsd.linux.cz - Keywords: Browsing source code. - Description: "Linux Source Driver (LSD) is an application, which - can make browsing source codes of Linux kernel easier than you can - imagine. You can select between multiple versions of kernel (e.g. - 0.01, 1.0.0, 2.0.33, 2.0.34pre13, 2.0.0, 2.1.101 etc.). With LSD - you can search Linux kernel (fulltext, macros, types, functions - and variables) and LSD can generate patches for you on the fly - (files, directories or kernel)". - * Name: "Linux Kernel Source Reference" Author: Thomas Graichen. URL: http://marc.info/?l=linux-kernel&m=96446640102205&w=4 diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index aa47be71df4..854ed5ca7e3 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -40,6 +40,7 @@ parameter is applicable: ALSA ALSA sound support is enabled. APIC APIC support is enabled. APM Advanced Power Management support is enabled. + ARM ARM architecture is enabled. AVR32 AVR32 architecture is enabled. AX25 Appropriate AX.25 support is enabled. BLACKFIN Blackfin architecture is enabled. @@ -49,6 +50,7 @@ parameter is applicable: EFI EFI Partitioning (GPT) is enabled EIDE EIDE/ATAPI support is enabled. FB The frame buffer device is enabled. + FTRACE Function tracing enabled. GCOV GCOV profiling is enabled. HW Appropriate hardware is enabled. IA-64 IA-64 architecture is enabled. @@ -69,6 +71,7 @@ parameter is applicable: Documentation/m68k/kernel-options.txt. MCA MCA bus support is enabled. MDA MDA console support is enabled. + MIPS MIPS architecture is enabled. MOUSE Appropriate mouse support is enabled. MSI Message Signaled Interrupts (PCI). MTD MTD (Memory Technology Device) support is enabled. @@ -100,7 +103,6 @@ parameter is applicable: SPARC Sparc architecture is enabled. 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. @@ -115,7 +117,7 @@ parameter is applicable: X86-64 X86-64 architecture is enabled. More X86-64 boot options can be found in Documentation/x86/x86_64/boot-options.txt . - X86 Either 32bit or 64bit x86 (same as X86-32+X86-64) + X86 Either 32-bit or 64-bit x86 (same as X86-32+X86-64) XEN Xen support is enabled In addition, the following text indicates that the option: @@ -163,6 +165,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted. See also Documentation/power/pm.txt, pci=noacpi + acpi_rsdp= [ACPI,EFI,KEXEC] + Pass the RSDP address to the kernel, mostly used + on machines running EFI runtime service to boot the + second kernel for kdump. + acpi_apic_instance= [ACPI, IOAPIC] Format: <int> 2: use 2nd APIC table, if available @@ -371,7 +378,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. atkbd.softrepeat= [HW] Use software keyboard repeat - autotest [IA64] + autotest [IA-64] baycom_epp= [HW,AX25] Format: <io>,<mode> @@ -546,6 +553,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted. /proc/<pid>/coredump_filter. See also Documentation/filesystems/proc.txt. + cpuidle.off=1 [CPU_IDLE] + disable the cpuidle sub-system + cpcihp_generic= [HW,PCI] Generic port I/O CompactPCI driver Format: <first_slot>,<last_slot>,<port>,<enum_bit>[,<debug>] @@ -673,8 +683,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted. uart[8250],mmio32,<addr>[,options] Start an early, polled-mode console on the 8250/16550 UART at the specified I/O port or MMIO address. - MMIO inter-register address stride is either 8bit (mmio) - or 32bit (mmio32). + MMIO inter-register address stride is either 8-bit + (mmio) or 32-bit (mmio32). The options are the same as for ttyS, above. earlyprintk= [X86,SH,BLACKFIN] @@ -717,7 +727,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. See Documentation/block/as-iosched.txt and Documentation/block/deadline-iosched.txt for details. - elfcorehdr= [IA64,PPC,SH,X86] + elfcorehdr= [IA-64,PPC,SH,X86] Specifies physical address of start of kernel core image elf header. Generally kexec loader will pass this option to capture kernel. @@ -783,7 +793,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. tracer at boot up. function-list is a comma separated list of functions. This list can be changed at run time by the set_ftrace_filter file in the debugfs - tracing directory. + tracing directory. ftrace_notrace=[function-list] [FTRACE] Do not trace the functions specified in @@ -821,7 +831,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. hashdist= [KNL,NUMA] Large hashes allocated during boot are distributed across NUMA nodes. Defaults on - for 64bit NUMA, off otherwise. + for 64-bit NUMA, off otherwise. Format: 0 | 1 (for off | on) hcl= [IA-64] SGI's Hardware Graph compatibility layer @@ -990,10 +1000,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted. DMA. forcedac [x86_64] With this option iommu will not optimize to look - for io virtual address below 32 bit forcing dual + for io virtual address below 32-bit forcing dual address cycle on pci bus for cards supporting greater - than 32 bit addressing. The default is to look - for translation below 32 bit and if not available + than 32-bit addressing. The default is to look + for translation below 32-bit and if not available then look in the higher range. strict [Default Off] With this option on every unmap_single operation will @@ -1009,7 +1019,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. off disable Interrupt Remapping nosid disable Source ID checking - inttest= [IA64] + inttest= [IA-64] iomem= Disable strict checking of access to MMIO memory strict regions from userspace. @@ -1026,7 +1036,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. nomerge forcesac soft - pt [x86, IA64] + pt [x86, IA-64] io7= [HW] IO7 for Marvel based alpha systems See comment before marvel_specify_io7 in @@ -1157,11 +1167,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. kvm-amd.npt= [KVM,AMD] Disable nested paging (virtualized MMU) for all guests. - Default is 1 (enabled) if in 64bit or 32bit-PAE mode - - kvm-intel.bypass_guest_pf= - [KVM,Intel] Disables bypassing of guest page faults - on Intel chips. Default is 1 (enabled) + Default is 1 (enabled) if in 64-bit or 32-bit PAE mode. kvm-intel.ept= [KVM,Intel] Disable extended page tables (virtualized MMU) support on capable Intel chips. @@ -1198,10 +1204,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted. libata.dma=0 Disable all PATA and SATA DMA libata.dma=1 PATA and SATA Disk DMA only libata.dma=2 ATAPI (CDROM) DMA only - libata.dma=4 Compact Flash DMA only + libata.dma=4 Compact Flash DMA only Combinations also work, so libata.dma=3 enables DMA for disks and CDROMs, but not CFs. - + libata.ignore_hpa= [LIBATA] Ignore HPA limit libata.ignore_hpa=0 keep BIOS limits (default) libata.ignore_hpa=1 ignore limits, using full disk @@ -1327,7 +1333,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. ltpc= [NET] Format: <io>,<irq>,<dma> - machvec= [IA64] Force the use of a particular machine-vector + machvec= [IA-64] Force the use of a particular machine-vector (machvec) in a generic kernel. Example: machvec=hpzx1_swiotlb @@ -1344,9 +1350,12 @@ bytes respectively. Such letter suffixes can also be entirely omitted. it is equivalent to "nosmp", which also disables the IO APIC. - max_loop= [LOOP] Maximum number of loopback devices that can - be mounted - Format: <1-256> + max_loop= [LOOP] The number of loop block devices that get + (loop.max_loop) unconditionally pre-created at init time. The default + number is configured by BLK_DEV_LOOP_MIN_COUNT. Instead + of statically allocating a predefined number, loop + devices can be requested on-demand with the + /dev/loop-control interface. mcatest= [IA-64] @@ -1730,13 +1739,17 @@ bytes respectively. Such letter suffixes can also be entirely omitted. nointroute [IA-64] - nojitter [IA64] Disables jitter checking for ITC timers. + nojitter [IA-64] Disables jitter checking for ITC timers. no-kvmclock [X86,KVM] Disable paravirtualized KVM clock driver no-kvmapf [X86,KVM] Disable paravirtualized asynchronous page fault handling. + no-steal-acc [X86,KVM] Disable paravirtualized steal time accounting. + steal time is computed, but won't influence scheduler + behaviour + nolapic [X86-32,APIC] Do not enable or use the local APIC. nolapic_timer [X86-32,APIC] Do not use the local APIC timer. @@ -1792,7 +1805,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. nox2apic [X86-64,APIC] Do not enable x2APIC mode. - nptcg= [IA64] Override max number of concurrent global TLB + nptcg= [IA-64] Override max number of concurrent global TLB purges which is reported from either PAL_VM_SUMMARY or SAL PALO. @@ -1846,7 +1859,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted. See Documentation/sound/oss/oss-parameters.txt panic= [KNL] Kernel behaviour on panic: delay <timeout> - seconds before rebooting + timeout > 0: seconds before rebooting + timeout = 0: wait forever + timeout < 0: reboot immediately Format: <timeout> parkbd.port= [HW] Parallel port number the keyboard adapter is @@ -2067,13 +2082,16 @@ bytes respectively. Such letter suffixes can also be entirely omitted. Format: { parport<nr> | timid | 0 } See also Documentation/parport.txt. - pmtmr= [X86] Manual setup of pmtmr I/O Port. + pmtmr= [X86] Manual setup of pmtmr I/O Port. Override pmtimer IOPort with a hex value. e.g. pmtmr=0x508 - pnp.debug [PNP] - Enable PNP debug messages. This depends on the - CONFIG_PNP_DEBUG_MESSAGES option. + pnp.debug=1 [PNP] + Enable PNP debug messages (depends on the + CONFIG_PNP_DEBUG_MESSAGES option). Change at run-time + via /sys/module/pnp/parameters/debug. We always show + current resource usage; turning this on also shows + possible settings and some assignment information. pnpacpi= [ACPI] { off } @@ -2151,6 +2169,8 @@ bytes respectively. Such letter suffixes can also be entirely omitted. [HW,MOUSE] Controls Logitech smartscroll autorepeat. 0 = disabled, 1 = enabled (default). + pstore.backend= Specify the name of the pstore backend to use + pt. [PARIDE] See Documentation/blockdev/paride.txt. @@ -2236,6 +2256,7 @@ bytes respectively. Such letter suffixes can also be entirely omitted. ro [KNL] Mount root device read-only on boot root= [KNL] Root filesystem + See name_to_dev_t comment in init/do_mounts.c. rootdelay= [KNL] Delay (in seconds) to pause before attempting to mount the root filesystem @@ -2526,6 +2547,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted. <port#>,<js1>,<js2>,<js3>,<js4>,<js5>,<js6>,<js7> See also Documentation/input/joystick-parport.txt + udbg-immortal [PPC] When debugging early kernel crashes that + happen after console_init() and before a proper + console driver takes over, this boot options might + help "seeing" what's going on. + uhash_entries= [KNL,NET] Set number of hash buckets for UDP/UDP-Lite connections @@ -2540,6 +2566,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted. unknown_nmi_panic [X86] Cause panic on unknown NMI. + usbcore.authorized_default= + [USB] Default USB device authorization: + (default -1 = authorized except for wireless USB, + 0 = not authorized, 1 = authorized) + usbcore.autosuspend= [USB] The autosuspend time delay (in seconds) used for newly-detected USB devices (default 2). This @@ -2612,6 +2643,16 @@ bytes respectively. Such letter suffixes can also be entirely omitted. medium is write-protected). Example: quirks=0419:aaf5:rl,0421:0433:rc + user_debug= [KNL,ARM] + Format: <int> + See arch/arm/Kconfig.debug help text. + 1 - undefined instruction events + 2 - system calls + 4 - invalid data aborts + 8 - SIGSEGV faults + 16 - SIGBUS faults + Example: user_debug=31 + userpte= [X86] Flags controlling user PTE allocations. @@ -2657,6 +2698,27 @@ bytes respectively. Such letter suffixes can also be entirely omitted. vmpoff= [KNL,S390] Perform z/VM CP command after power off. Format: <command> + vsyscall= [X86-64] + Controls the behavior of vsyscalls (i.e. calls to + fixed addresses of 0xffffffffff600x00 from legacy + code). Most statically-linked binaries and older + versions of glibc use these calls. Because these + functions are at fixed addresses, they make nice + targets for exploits that can control RIP. + + emulate [default] Vsyscalls turn into traps and are + emulated reasonably safely. + + native Vsyscalls are native syscall instructions. + This is a little bit faster than trapping + and makes a few dynamic recompilers work + better than they would in emulation mode. + It also makes exploits much easier to write. + + none Vsyscalls don't work at all. This makes + them quite hard to use for exploits but + might break your system. + vt.cur_default= [VT] Default cursor shape. Format: 0xCCBBAA, where AA, BB, and CC are the same as the parameters of the <Esc>[?A;B;Cc escape sequence; diff --git a/Documentation/m68k/kernel-options.txt b/Documentation/m68k/kernel-options.txt index c93bed66e25..97d45f276fe 100644 --- a/Documentation/m68k/kernel-options.txt +++ b/Documentation/m68k/kernel-options.txt @@ -129,6 +129,20 @@ decimal 11 is the major of SCSI CD-ROMs, and the minor 0 stands for the first of these. You can find out all valid major numbers by looking into include/linux/major.h. +In addition to major and minor numbers, if the device containing your +root partition uses a partition table format with unique partition +identifiers, then you may use them. For instance, +"root=PARTUUID=00112233-4455-6677-8899-AABBCCDDEEFF". It is also +possible to reference another partition on the same device using a +known partition UUID as the starting point. For example, +if partition 5 of the device has the UUID of +00112233-4455-6677-8899-AABBCCDDEEFF then partition 3 may be found as +follows: + PARTUUID=00112233-4455-6677-8899-AABBCCDDEEFF/PARTNROFF=-2 + +Authoritative information can be found in +"Documentation/kernel-parameters.txt". + 2.2) ro, rw ----------- diff --git a/Documentation/magic-number.txt b/Documentation/magic-number.txt index 4b12abcb2ad..abf481f780e 100644 --- a/Documentation/magic-number.txt +++ b/Documentation/magic-number.txt @@ -66,7 +66,7 @@ MKISS_DRIVER_MAGIC 0x04bf mkiss_channel drivers/net/mkiss.h RISCOM8_MAGIC 0x0907 riscom_port drivers/char/riscom8.h SPECIALIX_MAGIC 0x0907 specialix_port drivers/char/specialix_io8.h HDLC_MAGIC 0x239e n_hdlc drivers/char/n_hdlc.c -APM_BIOS_MAGIC 0x4101 apm_user arch/i386/kernel/apm.c +APM_BIOS_MAGIC 0x4101 apm_user arch/x86/kernel/apm_32.c CYCLADES_MAGIC 0x4359 cyclades_port include/linux/cyclades.h DB_MAGIC 0x4442 fc_info drivers/net/iph5526_novram.c DL_MAGIC 0x444d fc_info drivers/net/iph5526_novram.c diff --git a/Documentation/mca.txt b/Documentation/mca.txt index 510375d4209..dfd130c2207 100644 --- a/Documentation/mca.txt +++ b/Documentation/mca.txt @@ -11,7 +11,7 @@ Adapter Detection The ideal MCA adapter detection is done through the use of the Programmable Option Select registers. Generic functions for doing -this have been added in include/linux/mca.h and arch/i386/kernel/mca.c. +this have been added in include/linux/mca.h and arch/x86/kernel/mca_32.c. Everything needed to detect adapters and read (and write) configuration information is there. A number of MCA-specific drivers already use this. The typical probe code looks like the following: @@ -81,7 +81,7 @@ more people use shared IRQs on PCI machines. In general, an interrupt must be acknowledged not only at the ICU (which is done automagically by the kernel), but at the device level. In particular, IRQ 0 must be reset after a timer interrupt (now done in -arch/i386/kernel/time.c) or the first timer interrupt hangs the system. +arch/x86/kernel/time.c) or the first timer interrupt hangs the system. There were also problems with the 1.3.x floppy drivers, but that seems to have been fixed. diff --git a/Documentation/md.txt b/Documentation/md.txt index f0eee83ff78..fc94770f44a 100644 --- a/Documentation/md.txt +++ b/Documentation/md.txt @@ -360,18 +360,20 @@ Each directory contains: A file recording the current state of the device in the array which can be a comma separated list of faulty - device has been kicked from active use due to - a detected fault + a detected fault or it has unacknowledged bad + blocks in_sync - device is a fully in-sync member of the array writemostly - device will only be subject to read requests if there are no other options. This applies only to raid1 arrays. - blocked - device has failed, metadata is "external", - and the failure hasn't been acknowledged yet. + blocked - device has failed, and the failure hasn't been + acknowledged yet by the metadata handler. Writes that would write to this device if it were not faulty are blocked. spare - device is working, but not a full member. This includes spares that are in the process of being recovered to + write_error - device has ever seen a write error. This list may grow in future. This can be written to. Writing "faulty" simulates a failure on the device. @@ -379,9 +381,11 @@ Each directory contains: Writing "writemostly" sets the writemostly flag. Writing "-writemostly" clears the writemostly flag. Writing "blocked" sets the "blocked" flag. - Writing "-blocked" clears the "blocked" flag and allows writes - to complete. + Writing "-blocked" clears the "blocked" flags and allows writes + to complete and possibly simulates an error. Writing "in_sync" sets the in_sync flag. + Writing "write_error" sets writeerrorseen flag. + Writing "-write_error" clears writeerrorseen flag. This file responds to select/poll. Any change to 'faulty' or 'blocked' causes an event. @@ -419,7 +423,6 @@ Each directory contains: written, it will be rejected. recovery_start - When the device is not 'in_sync', this records the number of sectors from the start of the device which are known to be correct. This is normally zero, but during a recovery @@ -435,6 +438,20 @@ Each directory contains: Setting this to 'none' is equivalent to setting 'in_sync'. Setting to any other value also clears the 'in_sync' flag. + bad_blocks + This gives the list of all known bad blocks in the form of + start address and length (in sectors respectively). If output + is too big to fit in a page, it will be truncated. Writing + "sector length" to this file adds new acknowledged (i.e. + recorded to disk safely) bad blocks. + + unacknowledged_bad_blocks + This gives the list of known-but-not-yet-saved-to-disk bad + blocks in the same form of 'bad_blocks'. If output is too big + to fit in a page, it will be truncated. Writing to this file + adds bad blocks without acknowledging them. This is largely + for testing. + An active md device will also contain and entry for each active device diff --git a/Documentation/media-framework.txt b/Documentation/media-framework.txt index 76a2087db20..669b5fb03a8 100644 --- a/Documentation/media-framework.txt +++ b/Documentation/media-framework.txt @@ -310,7 +310,7 @@ is non-immutable. The operation must either configure the hardware or store the configuration information to be applied later. Link configuration must not have any side effect on other links. If an enabled -link at a sink pad prevents another link at the same pad from being disabled, +link at a sink pad prevents another link at the same pad from being enabled, the link_setup operation must return -EBUSY and can't implicitly disable the first enabled link. diff --git a/Documentation/networking/00-INDEX b/Documentation/networking/00-INDEX index 4edd78dfb36..bbce1215434 100644 --- a/Documentation/networking/00-INDEX +++ b/Documentation/networking/00-INDEX @@ -1,13 +1,21 @@ 00-INDEX - this file +3c359.txt + - information on the 3Com TokenLink Velocity XL (3c5359) driver. 3c505.txt - information on the 3Com EtherLink Plus (3c505) driver. +3c509.txt + - information on the 3Com Etherlink III Series Ethernet cards. 6pack.txt - info on the 6pack protocol, an alternative to KISS for AX.25 DLINK.txt - info on the D-Link DE-600/DE-620 parallel port pocket adapters PLIP.txt - PLIP: The Parallel Line Internet Protocol device driver +README.ipw2100 + - README for the Intel PRO/Wireless 2100 driver. +README.ipw2200 + - README for the Intel PRO/Wireless 2915ABG and 2200BG driver. README.sb1000 - info on General Instrument/NextLevel SURFboard1000 cable modem. alias.txt @@ -20,8 +28,12 @@ atm.txt - info on where to get ATM programs and support for Linux. ax25.txt - info on using AX.25 and NET/ROM code for Linux +batman-adv.txt + - B.A.T.M.A.N routing protocol on top of layer 2 Ethernet Frames. baycom.txt - info on the driver for Baycom style amateur radio modems +bonding.txt + - Linux Ethernet Bonding Driver HOWTO: link aggregation in Linux. bridge.txt - where to get user space programs for ethernet bridging with Linux. can.txt @@ -34,32 +46,60 @@ cxacru.txt - Conexant AccessRunner USB ADSL Modem cxacru-cf.py - Conexant AccessRunner USB ADSL Modem configuration file parser +cxgb.txt + - Release Notes for the Chelsio N210 Linux device driver. +dccp.txt + - the Datagram Congestion Control Protocol (DCCP) (RFC 4340..42). de4x5.txt - the Digital EtherWORKS DE4?? and DE5?? PCI Ethernet driver decnet.txt - info on using the DECnet networking layer in Linux. depca.txt - the Digital DEPCA/EtherWORKS DE1?? and DE2?? LANCE Ethernet driver +dl2k.txt + - README for D-Link DL2000-based Gigabit Ethernet Adapters (dl2k.ko). +dm9000.txt + - README for the Simtec DM9000 Network driver. dmfe.txt - info on the Davicom DM9102(A)/DM9132/DM9801 fast ethernet driver. +dns_resolver.txt + - The DNS resolver module allows kernel servies to make DNS queries. +driver.txt + - Softnet driver issues. e100.txt - info on Intel's EtherExpress PRO/100 line of 10/100 boards e1000.txt - info on Intel's E1000 line of gigabit ethernet boards +e1000e.txt + - README for the Intel Gigabit Ethernet Driver (e1000e). eql.txt - serial IP load balancing ewrk3.txt - the Digital EtherWORKS 3 DE203/4/5 Ethernet driver +fib_trie.txt + - Level Compressed Trie (LC-trie) notes: a structure for routing. filter.txt - Linux Socket Filtering fore200e.txt - FORE Systems PCA-200E/SBA-200E ATM NIC driver info. framerelay.txt - info on using Frame Relay/Data Link Connection Identifier (DLCI). +gen_stats.txt + - Generic networking statistics for netlink users. +generic_hdlc.txt + - The generic High Level Data Link Control (HDLC) layer. generic_netlink.txt - info on Generic Netlink +gianfar.txt + - Gianfar Ethernet Driver. ieee802154.txt - Linux IEEE 802.15.4 implementation, API and drivers +ifenslave.c + - Configure network interfaces for parallel routing (bonding). +igb.txt + - README for the Intel Gigabit Ethernet Driver (igb). +igbvf.txt + - README for the Intel Gigabit Ethernet Driver (igbvf). ip-sysctl.txt - /proc/sys/net/ipv4/* variables ip_dynaddr.txt @@ -68,41 +108,117 @@ ipddp.txt - AppleTalk-IP Decapsulation and AppleTalk-IP Encapsulation iphase.txt - Interphase PCI ATM (i)Chip IA Linux driver info. +ipv6.txt + - Options to the ipv6 kernel module. +ipvs-sysctl.txt + - Per-inode explanation of the /proc/sys/net/ipv4/vs interface. irda.txt - where to get IrDA (infrared) utilities and info for Linux. +ixgb.txt + - README for the Intel 10 Gigabit Ethernet Driver (ixgb). +ixgbe.txt + - README for the Intel 10 Gigabit Ethernet Driver (ixgbe). +ixgbevf.txt + - README for the Intel Virtual Function (VF) Driver (ixgbevf). +l2tp.txt + - User guide to the L2TP tunnel protocol. lapb-module.txt - programming information of the LAPB module. ltpc.txt - the Apple or Farallon LocalTalk PC card driver +mac80211-injection.txt + - HOWTO use packet injection with mac80211 multicast.txt - Behaviour of cards under Multicast +multiqueue.txt + - HOWTO for multiqueue network device support. +netconsole.txt + - The network console module netconsole.ko: configuration and notes. +netdev-features.txt + - Network interface features API description. netdevices.txt - info on network device driver functions exported to the kernel. +netif-msg.txt + - Design of the network interface message level setting (NETIF_MSG_*). +nfc.txt + - The Linux Near Field Communication (NFS) subsystem. olympic.txt - IBM PCI Pit/Pit-Phy/Olympic Token Ring driver info. +operstates.txt + - Overview of network interface operational states. +packet_mmap.txt + - User guide to memory mapped packet socket rings (PACKET_[RT]X_RING). +phonet.txt + - The Phonet packet protocol used in Nokia cellular modems. +phy.txt + - The PHY abstraction layer. +pktgen.txt + - User guide to the kernel packet generator (pktgen.ko). policy-routing.txt - IP policy-based routing +ppp_generic.txt + - Information about the generic PPP driver. +proc_net_tcp.txt + - Per inode overview of the /proc/net/tcp and /proc/net/tcp6 interfaces. +radiotap-headers.txt + - Background on radiotap headers. ray_cs.txt - Raylink Wireless LAN card driver info. +rds.txt + - Background on the reliable, ordered datagram delivery method RDS. +regulatory.txt + - Overview of the Linux wireless regulatory infrastructure. +rxrpc.txt + - Guide to the RxRPC protocol. +s2io.txt + - Release notes for Neterion Xframe I/II 10GbE driver. +scaling.txt + - Explanation of network scaling techniques: RSS, RPS, RFS, aRFS, XPS. +sctp.txt + - Notes on the Linux kernel implementation of the SCTP protocol. +secid.txt + - Explanation of the secid member in flow structures. skfp.txt - SysKonnect FDDI (SK-5xxx, Compaq Netelligent) driver info. smc9.txt - the driver for SMC's 9000 series of Ethernet cards smctr.txt - SMC TokenCard TokenRing Linux driver info. +spider-net.txt + - README for the Spidernet Driver (as found in PS3 / Cell BE). +stmmac.txt + - README for the STMicro Synopsys Ethernet driver. +tc-actions-env-rules.txt + - rules for traffic control (tc) actions. +timestamping.txt + - overview of network packet timestamping variants. tcp.txt - short blurb on how TCP output takes place. +tcp-thin.txt + - kernel tuning options for low rate 'thin' TCP streams. tlan.txt - ThunderLAN (Compaq Netelligent 10/100, Olicom OC-2xxx) driver info. tms380tr.txt - SysKonnect Token Ring ISA/PCI adapter driver info. +tproxy.txt + - Transparent proxy support user guide. tuntap.txt - TUN/TAP device driver, allowing user space Rx/Tx of packets. +udplite.txt + - UDP-Lite protocol (RFC 3828) introduction. vortex.txt - info on using 3Com Vortex (3c590, 3c592, 3c595, 3c597) Ethernet cards. +vxge.txt + - README for the Neterion X3100 PCIe Server Adapter. x25.txt - general info on X.25 development. x25-iface.txt - description of the X.25 Packet Layer to LAPB device interface. +xfrm_proc.txt + - description of the statistics package for XFRM. +xfrm_sync.txt + - sync patches for XFRM enable migration of an SA between hosts. +xfrm_sysctl.txt + - description of the XFRM configuration options. z8530drv.txt - info about Linux driver for Z8530 based HDLC cards for AX.25 diff --git a/Documentation/networking/bonding.txt b/Documentation/networking/bonding.txt index 675612ff41a..91df678fb7f 100644 --- a/Documentation/networking/bonding.txt +++ b/Documentation/networking/bonding.txt @@ -238,6 +238,18 @@ ad_select This option was added in bonding version 3.4.0. +all_slaves_active + + Specifies that duplicate frames (received on inactive ports) should be + dropped (0) or delivered (1). + + Normally, bonding will drop duplicate frames (received on inactive + ports), which is desirable for most users. But there are some times + it is nice to allow duplicate frames to be delivered. + + The default value is 0 (drop duplicate frames received on inactive + ports). + arp_interval Specifies the ARP link monitoring frequency in milliseconds. @@ -433,6 +445,23 @@ miimon determined. See the High Availability section for additional information. The default value is 0. +min_links + + Specifies the minimum number of links that must be active before + asserting carrier. It is similar to the Cisco EtherChannel min-links + feature. This allows setting the minimum number of member ports that + must be up (link-up state) before marking the bond device as up + (carrier on). This is useful for situations where higher level services + such as clustering want to ensure a minimum number of low bandwidth + links are active before switchover. This option only affect 802.3ad + mode. + + The default value is 0. This will cause carrier to be asserted (for + 802.3ad mode) whenever there is an active aggregator, regardless of the + number of available links in that aggregator. Note that, because an + aggregator cannot be active without at least one available link, + setting this option to 0 or to 1 has the exact same effect. + mode Specifies one of the bonding policies. The default is @@ -599,7 +628,7 @@ num_unsol_na affect only the active-backup mode. These options were added for bonding versions 3.3.0 and 3.4.0 respectively. - From Linux 2.6.40 and bonding version 3.7.1, these notifications + From Linux 3.0 and bonding version 3.7.1, these notifications are generated by the ipv4 and ipv6 code and the numbers of repetitions cannot be set independently. diff --git a/Documentation/networking/dmfe.txt b/Documentation/networking/dmfe.txt index 8006c227fda..25320bf19c8 100644 --- a/Documentation/networking/dmfe.txt +++ b/Documentation/networking/dmfe.txt @@ -1,3 +1,5 @@ +Note: This driver doesn't have a maintainer. + Davicom DM9102(A)/DM9132/DM9801 fast ethernet driver for Linux. This program is free software; you can redistribute it and/or @@ -55,7 +57,6 @@ Test and make sure PCI latency is now correct for all cases. Authors: Sten Wang <sten_wang@davicom.com.tw > : Original Author -Tobias Ringstrom <tori@unhappy.mine.nu> : Current Maintainer Contributors: diff --git a/Documentation/networking/ip-sysctl.txt b/Documentation/networking/ip-sysctl.txt index db2a4067013..ca5cdcd0f0e 100644 --- a/Documentation/networking/ip-sysctl.txt +++ b/Documentation/networking/ip-sysctl.txt @@ -992,7 +992,7 @@ bindv6only - BOOLEAN TRUE: disable IPv4-mapped address feature FALSE: enable IPv4-mapped address feature - Default: FALSE (as specified in RFC2553bis) + Default: FALSE (as specified in RFC3493) IPv6 Fragmentation: @@ -1042,7 +1042,7 @@ conf/interface/*: The functional behaviour for certain settings is different depending on whether local forwarding is enabled or not. -accept_ra - BOOLEAN +accept_ra - INTEGER Accept Router Advertisements; autoconfigure using them. Possible values are: @@ -1106,7 +1106,7 @@ dad_transmits - INTEGER The amount of Duplicate Address Detection probes to send. Default: 1 -forwarding - BOOLEAN +forwarding - INTEGER Configure interface-specific Host/Router behaviour. Note: It is recommended to have the same setting on all diff --git a/Documentation/networking/scaling.txt b/Documentation/networking/scaling.txt new file mode 100644 index 00000000000..fe67b5c79f0 --- /dev/null +++ b/Documentation/networking/scaling.txt @@ -0,0 +1,378 @@ +Scaling in the Linux Networking Stack + + +Introduction +============ + +This document describes a set of complementary techniques in the Linux +networking stack to increase parallelism and improve performance for +multi-processor systems. + +The following technologies are described: + + RSS: Receive Side Scaling + RPS: Receive Packet Steering + RFS: Receive Flow Steering + Accelerated Receive Flow Steering + XPS: Transmit Packet Steering + + +RSS: Receive Side Scaling +========================= + +Contemporary NICs support multiple receive and transmit descriptor queues +(multi-queue). On reception, a NIC can send different packets to different +queues to distribute processing among CPUs. The NIC distributes packets by +applying a filter to each packet that assigns it to one of a small number +of logical flows. Packets for each flow are steered to a separate receive +queue, which in turn can be processed by separate CPUs. This mechanism is +generally known as “Receive-side Scaling” (RSS). The goal of RSS and +the other scaling techniques is to increase performance uniformly. +Multi-queue distribution can also be used for traffic prioritization, but +that is not the focus of these techniques. + +The filter used in RSS is typically a hash function over the network +and/or transport layer headers-- for example, a 4-tuple hash over +IP addresses and TCP ports of a packet. The most common hardware +implementation of RSS uses a 128-entry indirection table where each entry +stores a queue number. The receive queue for a packet is determined +by masking out the low order seven bits of the computed hash for the +packet (usually a Toeplitz hash), taking this number as a key into the +indirection table and reading the corresponding value. + +Some advanced NICs allow steering packets to queues based on +programmable filters. For example, webserver bound TCP port 80 packets +can be directed to their own receive queue. Such “n-tuple” filters can +be configured from ethtool (--config-ntuple). + +==== RSS Configuration + +The driver for a multi-queue capable NIC typically provides a kernel +module parameter for specifying the number of hardware queues to +configure. In the bnx2x driver, for instance, this parameter is called +num_queues. A typical RSS configuration would be to have one receive queue +for each CPU if the device supports enough queues, or otherwise at least +one for each memory domain, where a memory domain is a set of CPUs that +share a particular memory level (L1, L2, NUMA node, etc.). + +The indirection table of an RSS device, which resolves a queue by masked +hash, is usually programmed by the driver at initialization. The +default mapping is to distribute the queues evenly in the table, but the +indirection table can be retrieved and modified at runtime using ethtool +commands (--show-rxfh-indir and --set-rxfh-indir). Modifying the +indirection table could be done to give different queues different +relative weights. + +== RSS IRQ Configuration + +Each receive queue has a separate IRQ associated with it. The NIC triggers +this to notify a CPU when new packets arrive on the given queue. The +signaling path for PCIe devices uses message signaled interrupts (MSI-X), +that can route each interrupt to a particular CPU. The active mapping +of queues to IRQs can be determined from /proc/interrupts. By default, +an IRQ may be handled on any CPU. Because a non-negligible part of packet +processing takes place in receive interrupt handling, it is advantageous +to spread receive interrupts between CPUs. To manually adjust the IRQ +affinity of each interrupt see Documentation/IRQ-affinity. Some systems +will be running irqbalance, a daemon that dynamically optimizes IRQ +assignments and as a result may override any manual settings. + +== Suggested Configuration + +RSS should be enabled when latency is a concern or whenever receive +interrupt processing forms a bottleneck. Spreading load between CPUs +decreases queue length. For low latency networking, the optimal setting +is to allocate as many queues as there are CPUs in the system (or the +NIC maximum, if lower). The most efficient high-rate configuration +is likely the one with the smallest number of receive queues where no +receive queue overflows due to a saturated CPU, because in default +mode with interrupt coalescing enabled, the aggregate number of +interrupts (and thus work) grows with each additional queue. + +Per-cpu load can be observed using the mpstat utility, but note that on +processors with hyperthreading (HT), each hyperthread is represented as +a separate CPU. For interrupt handling, HT has shown no benefit in +initial tests, so limit the number of queues to the number of CPU cores +in the system. + + +RPS: Receive Packet Steering +============================ + +Receive Packet Steering (RPS) is logically a software implementation of +RSS. Being in software, it is necessarily called later in the datapath. +Whereas RSS selects the queue and hence CPU that will run the hardware +interrupt handler, RPS selects the CPU to perform protocol processing +above the interrupt handler. This is accomplished by placing the packet +on the desired CPU’s backlog queue and waking up the CPU for processing. +RPS has some advantages over RSS: 1) it can be used with any NIC, +2) software filters can easily be added to hash over new protocols, +3) it does not increase hardware device interrupt rate (although it does +introduce inter-processor interrupts (IPIs)). + +RPS is called during bottom half of the receive interrupt handler, when +a driver sends a packet up the network stack with netif_rx() or +netif_receive_skb(). These call the get_rps_cpu() function, which +selects the queue that should process a packet. + +The first step in determining the target CPU for RPS is to calculate a +flow hash over the packet’s addresses or ports (2-tuple or 4-tuple hash +depending on the protocol). This serves as a consistent hash of the +associated flow of the packet. The hash is either provided by hardware +or will be computed in the stack. Capable hardware can pass the hash in +the receive descriptor for the packet; this would usually be the same +hash used for RSS (e.g. computed Toeplitz hash). The hash is saved in +skb->rx_hash and can be used elsewhere in the stack as a hash of the +packet’s flow. + +Each receive hardware queue has an associated list of CPUs to which +RPS may enqueue packets for processing. For each received packet, +an index into the list is computed from the flow hash modulo the size +of the list. The indexed CPU is the target for processing the packet, +and the packet is queued to the tail of that CPU’s backlog queue. At +the end of the bottom half routine, IPIs are sent to any CPUs for which +packets have been queued to their backlog queue. The IPI wakes backlog +processing on the remote CPU, and any queued packets are then processed +up the networking stack. + +==== RPS Configuration + +RPS requires a kernel compiled with the CONFIG_RPS kconfig symbol (on +by default for SMP). Even when compiled in, RPS remains disabled until +explicitly configured. The list of CPUs to which RPS may forward traffic +can be configured for each receive queue using a sysfs file entry: + + /sys/class/net/<dev>/queues/rx-<n>/rps_cpus + +This file implements a bitmap of CPUs. RPS is disabled when it is zero +(the default), in which case packets are processed on the interrupting +CPU. Documentation/IRQ-affinity.txt explains how CPUs are assigned to +the bitmap. + +== Suggested Configuration + +For a single queue device, a typical RPS configuration would be to set +the rps_cpus to the CPUs in the same memory domain of the interrupting +CPU. If NUMA locality is not an issue, this could also be all CPUs in +the system. At high interrupt rate, it might be wise to exclude the +interrupting CPU from the map since that already performs much work. + +For a multi-queue system, if RSS is configured so that a hardware +receive queue is mapped to each CPU, then RPS is probably redundant +and unnecessary. If there are fewer hardware queues than CPUs, then +RPS might be beneficial if the rps_cpus for each queue are the ones that +share the same memory domain as the interrupting CPU for that queue. + + +RFS: Receive Flow Steering +========================== + +While RPS steers packets solely based on hash, and thus generally +provides good load distribution, it does not take into account +application locality. This is accomplished by Receive Flow Steering +(RFS). The goal of RFS is to increase datacache hitrate by steering +kernel processing of packets to the CPU where the application thread +consuming the packet is running. RFS relies on the same RPS mechanisms +to enqueue packets onto the backlog of another CPU and to wake up that +CPU. + +In RFS, packets are not forwarded directly by the value of their hash, +but the hash is used as index into a flow lookup table. This table maps +flows to the CPUs where those flows are being processed. The flow hash +(see RPS section above) is used to calculate the index into this table. +The CPU recorded in each entry is the one which last processed the flow. +If an entry does not hold a valid CPU, then packets mapped to that entry +are steered using plain RPS. Multiple table entries may point to the +same CPU. Indeed, with many flows and few CPUs, it is very likely that +a single application thread handles flows with many different flow hashes. + +rps_sock_flow_table is a global flow table that contains the *desired* CPU +for flows: the CPU that is currently processing the flow in userspace. +Each table value is a CPU index that is updated during calls to recvmsg +and sendmsg (specifically, inet_recvmsg(), inet_sendmsg(), inet_sendpage() +and tcp_splice_read()). + +When the scheduler moves a thread to a new CPU while it has outstanding +receive packets on the old CPU, packets may arrive out of order. To +avoid this, RFS uses a second flow table to track outstanding packets +for each flow: rps_dev_flow_table is a table specific to each hardware +receive queue of each device. Each table value stores a CPU index and a +counter. The CPU index represents the *current* CPU onto which packets +for this flow are enqueued for further kernel processing. Ideally, kernel +and userspace processing occur on the same CPU, and hence the CPU index +in both tables is identical. This is likely false if the scheduler has +recently migrated a userspace thread while the kernel still has packets +enqueued for kernel processing on the old CPU. + +The counter in rps_dev_flow_table values records the length of the current +CPU's backlog when a packet in this flow was last enqueued. Each backlog +queue has a head counter that is incremented on dequeue. A tail counter +is computed as head counter + queue length. In other words, the counter +in rps_dev_flow_table[i] records the last element in flow i that has +been enqueued onto the currently designated CPU for flow i (of course, +entry i is actually selected by hash and multiple flows may hash to the +same entry i). + +And now the trick for avoiding out of order packets: when selecting the +CPU for packet processing (from get_rps_cpu()) the rps_sock_flow table +and the rps_dev_flow table of the queue that the packet was received on +are compared. If the desired CPU for the flow (found in the +rps_sock_flow table) matches the current CPU (found in the rps_dev_flow +table), the packet is enqueued onto that CPU’s backlog. If they differ, +the current CPU is updated to match the desired CPU if one of the +following is true: + +- The current CPU's queue head counter >= the recorded tail counter + value in rps_dev_flow[i] +- The current CPU is unset (equal to NR_CPUS) +- The current CPU is offline + +After this check, the packet is sent to the (possibly updated) current +CPU. These rules aim to ensure that a flow only moves to a new CPU when +there are no packets outstanding on the old CPU, as the outstanding +packets could arrive later than those about to be processed on the new +CPU. + +==== RFS Configuration + +RFS is only available if the kconfig symbol CONFIG_RFS is enabled (on +by default for SMP). The functionality remains disabled until explicitly +configured. The number of entries in the global flow table is set through: + + /proc/sys/net/core/rps_sock_flow_entries + +The number of entries in the per-queue flow table are set through: + + /sys/class/net/<dev>/queues/rx-<n>/rps_flow_cnt + +== Suggested Configuration + +Both of these need to be set before RFS is enabled for a receive queue. +Values for both are rounded up to the nearest power of two. The +suggested flow count depends on the expected number of active connections +at any given time, which may be significantly less than the number of open +connections. We have found that a value of 32768 for rps_sock_flow_entries +works fairly well on a moderately loaded server. + +For a single queue device, the rps_flow_cnt value for the single queue +would normally be configured to the same value as rps_sock_flow_entries. +For a multi-queue device, the rps_flow_cnt for each queue might be +configured as rps_sock_flow_entries / N, where N is the number of +queues. So for instance, if rps_flow_entries is set to 32768 and there +are 16 configured receive queues, rps_flow_cnt for each queue might be +configured as 2048. + + +Accelerated RFS +=============== + +Accelerated RFS is to RFS what RSS is to RPS: a hardware-accelerated load +balancing mechanism that uses soft state to steer flows based on where +the application thread consuming the packets of each flow is running. +Accelerated RFS should perform better than RFS since packets are sent +directly to a CPU local to the thread consuming the data. The target CPU +will either be the same CPU where the application runs, or at least a CPU +which is local to the application thread’s CPU in the cache hierarchy. + +To enable accelerated RFS, the networking stack calls the +ndo_rx_flow_steer driver function to communicate the desired hardware +queue for packets matching a particular flow. The network stack +automatically calls this function every time a flow entry in +rps_dev_flow_table is updated. The driver in turn uses a device specific +method to program the NIC to steer the packets. + +The hardware queue for a flow is derived from the CPU recorded in +rps_dev_flow_table. The stack consults a CPU to hardware queue map which +is maintained by the NIC driver. This is an auto-generated reverse map of +the IRQ affinity table shown by /proc/interrupts. Drivers can use +functions in the cpu_rmap (“CPU affinity reverse map”) kernel library +to populate the map. For each CPU, the corresponding queue in the map is +set to be one whose processing CPU is closest in cache locality. + +==== Accelerated RFS Configuration + +Accelerated RFS is only available if the kernel is compiled with +CONFIG_RFS_ACCEL and support is provided by the NIC device and driver. +It also requires that ntuple filtering is enabled via ethtool. The map +of CPU to queues is automatically deduced from the IRQ affinities +configured for each receive queue by the driver, so no additional +configuration should be necessary. + +== Suggested Configuration + +This technique should be enabled whenever one wants to use RFS and the +NIC supports hardware acceleration. + +XPS: Transmit Packet Steering +============================= + +Transmit Packet Steering is a mechanism for intelligently selecting +which transmit queue to use when transmitting a packet on a multi-queue +device. To accomplish this, a mapping from CPU to hardware queue(s) is +recorded. The goal of this mapping is usually to assign queues +exclusively to a subset of CPUs, where the transmit completions for +these queues are processed on a CPU within this set. This choice +provides two benefits. First, contention on the device queue lock is +significantly reduced since fewer CPUs contend for the same queue +(contention can be eliminated completely if each CPU has its own +transmit queue). Secondly, cache miss rate on transmit completion is +reduced, in particular for data cache lines that hold the sk_buff +structures. + +XPS is configured per transmit queue by setting a bitmap of CPUs that +may use that queue to transmit. The reverse mapping, from CPUs to +transmit queues, is computed and maintained for each network device. +When transmitting the first packet in a flow, the function +get_xps_queue() is called to select a queue. This function uses the ID +of the running CPU as a key into the CPU-to-queue lookup table. If the +ID matches a single queue, that is used for transmission. If multiple +queues match, one is selected by using the flow hash to compute an index +into the set. + +The queue chosen for transmitting a particular flow is saved in the +corresponding socket structure for the flow (e.g. a TCP connection). +This transmit queue is used for subsequent packets sent on the flow to +prevent out of order (ooo) packets. The choice also amortizes the cost +of calling get_xps_queues() over all packets in the flow. To avoid +ooo packets, the queue for a flow can subsequently only be changed if +skb->ooo_okay is set for a packet in the flow. This flag indicates that +there are no outstanding packets in the flow, so the transmit queue can +change without the risk of generating out of order packets. The +transport layer is responsible for setting ooo_okay appropriately. TCP, +for instance, sets the flag when all data for a connection has been +acknowledged. + +==== XPS Configuration + +XPS is only available if the kconfig symbol CONFIG_XPS is enabled (on by +default for SMP). The functionality remains disabled until explicitly +configured. To enable XPS, the bitmap of CPUs that may use a transmit +queue is configured using the sysfs file entry: + +/sys/class/net/<dev>/queues/tx-<n>/xps_cpus + +== Suggested Configuration + +For a network device with a single transmission queue, XPS configuration +has no effect, since there is no choice in this case. In a multi-queue +system, XPS is preferably configured so that each CPU maps onto one queue. +If there are as many queues as there are CPUs in the system, then each +queue can also map onto one CPU, resulting in exclusive pairings that +experience no contention. If there are fewer queues than CPUs, then the +best CPUs to share a given queue are probably those that share the cache +with the CPU that processes transmit completions for that queue +(transmit interrupts). + + +Further Information +=================== +RPS and RFS were introduced in kernel 2.6.35. XPS was incorporated into +2.6.38. Original patches were submitted by Tom Herbert +(therbert@google.com) + +Accelerated RFS was introduced in 2.6.35. Original patches were +submitted by Ben Hutchings (bhutchings@solarflare.com) + +Authors: +Tom Herbert (therbert@google.com) +Willem de Bruijn (willemb@google.com) diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt index 14dd3c6ad97..6066e3a6b9a 100644 --- a/Documentation/power/runtime_pm.txt +++ b/Documentation/power/runtime_pm.txt @@ -54,11 +54,10 @@ referred to as subsystem-level callbacks in what follows. By default, the callbacks are always invoked in process context with interrupts enabled. However, subsystems can use the pm_runtime_irq_safe() helper function to tell the PM core that a device's ->runtime_suspend() and ->runtime_resume() -callbacks should be invoked in atomic context with interrupts disabled -(->runtime_idle() is still invoked the default way). This implies that these -callback routines must not block or sleep, but it also means that the -synchronous helper functions listed at the end of Section 4 can be used within -an interrupt handler or in an atomic context. +callbacks should be invoked in atomic context with interrupts disabled. +This implies that these callback routines must not block or sleep, but it also +means that the synchronous helper functions listed at the end of Section 4 can +be used within an interrupt handler or in an atomic context. The subsystem-level suspend callback is _entirely_ _responsible_ for handling the suspend of the device as appropriate, which may, but need not include @@ -432,8 +431,7 @@ drivers/base/power/runtime.c and include/linux/pm_runtime.h: void pm_runtime_irq_safe(struct device *dev); - set the power.irq_safe flag for the device, causing the runtime-PM - suspend and resume callbacks (but not the idle callback) to be invoked - with interrupts disabled + callbacks to be invoked with interrupts off void pm_runtime_mark_last_busy(struct device *dev); - set the power.last_busy field to the current time @@ -483,6 +481,7 @@ pm_runtime_suspend() pm_runtime_autosuspend() pm_runtime_resume() pm_runtime_get_sync() +pm_runtime_put_sync() pm_runtime_put_sync_suspend() 5. Runtime PM Initialization, Device Probing and Removal diff --git a/Documentation/ramoops.txt b/Documentation/ramoops.txt new file mode 100644 index 00000000000..8fb1ba7fe7b --- /dev/null +++ b/Documentation/ramoops.txt @@ -0,0 +1,76 @@ +Ramoops oops/panic logger +========================= + +Sergiu Iordache <sergiu@chromium.org> + +Updated: 8 August 2011 + +0. Introduction + +Ramoops is an oops/panic logger that writes its logs to RAM before the system +crashes. It works by logging oopses and panics in a circular buffer. Ramoops +needs a system with persistent RAM so that the content of that area can +survive after a restart. + +1. Ramoops concepts + +Ramoops uses a predefined memory area to store the dump. The start and size of +the memory area are set using two variables: + * "mem_address" for the start + * "mem_size" for the size. The memory size will be rounded down to a + power of two. + +The memory area is divided into "record_size" chunks (also rounded down to +power of two) and each oops/panic writes a "record_size" chunk of +information. + +Dumping both oopses and panics can be done by setting 1 in the "dump_oops" +variable while setting 0 in that variable dumps only the panics. + +The module uses a counter to record multiple dumps but the counter gets reset +on restart (i.e. new dumps after the restart will overwrite old ones). + +2. Setting the parameters + +Setting the ramoops parameters can be done in 2 different manners: + 1. Use the module parameters (which have the names of the variables described + as before). + 2. Use a platform device and set the platform data. The parameters can then + be set through that platform data. An example of doing that is: + +#include <linux/ramoops.h> +[...] + +static struct ramoops_platform_data ramoops_data = { + .mem_size = <...>, + .mem_address = <...>, + .record_size = <...>, + .dump_oops = <...>, +}; + +static struct platform_device ramoops_dev = { + .name = "ramoops", + .dev = { + .platform_data = &ramoops_data, + }, +}; + +[... inside a function ...] +int ret; + +ret = platform_device_register(&ramoops_dev); +if (ret) { + printk(KERN_ERR "unable to register platform device\n"); + return ret; +} + +3. Dump format + +The data dump begins with a header, currently defined as "====" followed by a +timestamp and a new line. The dump then continues with the actual data. + +4. Reading the data + +The dump data can be read from memory (through /dev/mem or other means). +Getting the module parameters, which are needed in order to parse the data, can +be done through /sys/module/ramoops/parameters/* . diff --git a/Documentation/rbtree.txt b/Documentation/rbtree.txt index 19f8278c385..8d32d85a523 100644 --- a/Documentation/rbtree.txt +++ b/Documentation/rbtree.txt @@ -196,15 +196,20 @@ 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. +infrastructure. An rbtree user who wants this feature will have to call the +augmentation functions with the user provided augmentation callback +when inserting and erasing nodes. + +On insertion, the user must call rb_augment_insert() once the new node is in +place. This will cause the augmentation function callback to be called for +each node between the new node and the root which has been affected by the +insertion. + +When erasing a node, the user must call rb_augment_erase_begin() first to +retrieve the deepest node on the rebalance path. Then, after erasing the +original node, the user must call rb_augment_erase_end() with the deepest +node found earlier. This will cause the augmentation function to be called +for each affected node between the deepest node and the root. Interval tree is an example of augmented rb tree. Reference - diff --git a/Documentation/s390/TAPE b/Documentation/s390/TAPE deleted file mode 100644 index c639aa5603f..00000000000 --- a/Documentation/s390/TAPE +++ /dev/null @@ -1,122 +0,0 @@ -Channel attached Tape device driver - ------------------------------WARNING----------------------------------------- -This driver is considered to be EXPERIMENTAL. Do NOT use it in -production environments. Feel free to test it and report problems back to us. ------------------------------------------------------------------------------ - -The LINUX for zSeries tape device driver manages channel attached tape drives -which are compatible to IBM 3480 or IBM 3490 magnetic tape subsystems. This -includes various models of these devices (for example the 3490E). - - -Tape driver features - -The device driver supports a maximum of 128 tape devices. -No official LINUX device major number is assigned to the zSeries tape device -driver. It allocates major numbers dynamically and reports them on system -startup. -Typically it will get major number 254 for both the character device front-end -and the block device front-end. - -The tape device driver needs no kernel parameters. All supported devices -present are detected on driver initialization at system startup or module load. -The devices detected are ordered by their subchannel numbers. The device with -the lowest subchannel number becomes device 0, the next one will be device 1 -and so on. - - -Tape character device front-end - -The usual way to read or write to the tape device is through the character -device front-end. The zSeries tape device driver provides two character devices -for each physical device -- the first of these will rewind automatically when -it is closed, the second will not rewind automatically. - -The character device nodes are named /dev/rtibm0 (rewinding) and /dev/ntibm0 -(non-rewinding) for the first device, /dev/rtibm1 and /dev/ntibm1 for the -second, and so on. - -The character device front-end can be used as any other LINUX tape device. You -can write to it and read from it using LINUX facilities such as GNU tar. The -tool mt can be used to perform control operations, such as rewinding the tape -or skipping a file. - -Most LINUX tape software should work with either tape character device. - - -Tape block device front-end - -The tape device may also be accessed as a block device in read-only mode. -This could be used for software installation in the same way as it is used with -other operation systems on the zSeries platform (and most LINUX -distributions are shipped on compact disk using ISO9660 filesystems). - -One block device node is provided for each physical device. These are named -/dev/btibm0 for the first device, /dev/btibm1 for the second and so on. -You should only use the ISO9660 filesystem on LINUX for zSeries tapes because -the physical tape devices cannot perform fast seeks and the ISO9660 system is -optimized for this situation. - - -Tape block device example - -In this example a tape with an ISO9660 filesystem is created using the first -tape device. ISO9660 filesystem support must be built into your system kernel -for this. -The mt command is used to issue tape commands and the mkisofs command to -create an ISO9660 filesystem: - -- create a LINUX directory (somedir) with the contents of the filesystem - mkdir somedir - cp contents somedir - -- insert a tape - -- ensure the tape is at the beginning - mt -f /dev/ntibm0 rewind - -- set the blocksize of the character driver. The blocksize 2048 bytes - is commonly used on ISO9660 CD-Roms - mt -f /dev/ntibm0 setblk 2048 - -- write the filesystem to the character device driver - mkisofs -o /dev/ntibm0 somedir - -- rewind the tape again - mt -f /dev/ntibm0 rewind - -- Now you can mount your new filesystem as a block device: - mount -t iso9660 -o ro,block=2048 /dev/btibm0 /mnt - -TODO List - - - Driver has to be stabilized still - -BUGS - -This driver is considered BETA, which means some weaknesses may still -be in it. -If an error occurs which cannot be handled by the code you will get a -sense-data dump.In that case please do the following: - -1. set the tape driver debug level to maximum: - echo 6 >/proc/s390dbf/tape/level - -2. re-perform the actions which produced the bug. (Hopefully the bug will - reappear.) - -3. get a snapshot from the debug-feature: - cat /proc/s390dbf/tape/hex_ascii >somefile - -4. Now put the snapshot together with a detailed description of the situation - that led to the bug: - - Which tool did you use? - - Which hardware do you have? - - Was your tape unit online? - - Is it a shared tape unit? - -5. Send an email with your bug report to: - mailto:Linux390@de.ibm.com - - diff --git a/Documentation/scheduler/sched-arch.txt b/Documentation/scheduler/sched-arch.txt index d43dbcbd163..28aa1075e29 100644 --- a/Documentation/scheduler/sched-arch.txt +++ b/Documentation/scheduler/sched-arch.txt @@ -66,7 +66,7 @@ Your cpu_idle routines need to obey the following rules: barrier issued (followed by a test of need_resched with interrupts disabled, as explained in 3). -arch/i386/kernel/process.c has examples of both polling and +arch/x86/kernel/process.c has examples of both polling and sleeping idle functions. diff --git a/Documentation/scsi/BusLogic.txt b/Documentation/scsi/BusLogic.txt index d7fbc9488b9..48e982cd6fe 100644 --- a/Documentation/scsi/BusLogic.txt +++ b/Documentation/scsi/BusLogic.txt @@ -553,7 +553,7 @@ replacing "/usr/src" with wherever you keep your Linux kernel source tree: make config make zImage -Then install "arch/i386/boot/zImage" as your standard kernel, run lilo if +Then install "arch/x86/boot/zImage" as your standard kernel, run lilo if appropriate, and reboot. diff --git a/Documentation/scsi/ChangeLog.megaraid_sas b/Documentation/scsi/ChangeLog.megaraid_sas index 9ed1d9d9678..1b6e27ddb7f 100644 --- a/Documentation/scsi/ChangeLog.megaraid_sas +++ b/Documentation/scsi/ChangeLog.megaraid_sas @@ -1,3 +1,11 @@ +Release Date : Tue. Jul 26, 2011 17:00:00 PST 2010 - + (emaild-id:megaraidlinux@lsi.com) + Adam Radford +Current Version : 00.00.05.40-rc1 +Old Version : 00.00.05.38-rc1 + 1. Fix FastPath I/O to work with degraded RAID 1. + 2. Add .change_queue_depth support. +------------------------------------------------------------------------------- Release Date : Wed. May 11, 2011 17:00:00 PST 2010 - (emaild-id:megaraidlinux@lsi.com) Adam Radford diff --git a/Documentation/security/keys-ecryptfs.txt b/Documentation/security/keys-ecryptfs.txt new file mode 100644 index 00000000000..c3bbeba6356 --- /dev/null +++ b/Documentation/security/keys-ecryptfs.txt @@ -0,0 +1,68 @@ + Encrypted keys for the eCryptfs filesystem + +ECryptfs is a stacked filesystem which transparently encrypts and decrypts each +file using a randomly generated File Encryption Key (FEK). + +Each FEK is in turn encrypted with a File Encryption Key Encryption Key (FEFEK) +either in kernel space or in user space with a daemon called 'ecryptfsd'. In +the former case the operation is performed directly by the kernel CryptoAPI +using a key, the FEFEK, derived from a user prompted passphrase; in the latter +the FEK is encrypted by 'ecryptfsd' with the help of external libraries in order +to support other mechanisms like public key cryptography, PKCS#11 and TPM based +operations. + +The data structure defined by eCryptfs to contain information required for the +FEK decryption is called authentication token and, currently, can be stored in a +kernel key of the 'user' type, inserted in the user's session specific keyring +by the userspace utility 'mount.ecryptfs' shipped with the package +'ecryptfs-utils'. + +The 'encrypted' key type has been extended with the introduction of the new +format 'ecryptfs' in order to be used in conjunction with the eCryptfs +filesystem. Encrypted keys of the newly introduced format store an +authentication token in its payload with a FEFEK randomly generated by the +kernel and protected by the parent master key. + +In order to avoid known-plaintext attacks, the datablob obtained through +commands 'keyctl print' or 'keyctl pipe' does not contain the overall +authentication token, which content is well known, but only the FEFEK in +encrypted form. + +The eCryptfs filesystem may really benefit from using encrypted keys in that the +required key can be securely generated by an Administrator and provided at boot +time after the unsealing of a 'trusted' key in order to perform the mount in a +controlled environment. Another advantage is that the key is not exposed to +threats of malicious software, because it is available in clear form only at +kernel level. + +Usage: + keyctl add encrypted name "new ecryptfs key-type:master-key-name keylen" ring + keyctl add encrypted name "load hex_blob" ring + keyctl update keyid "update key-type:master-key-name" + +name:= '<16 hexadecimal characters>' +key-type:= 'trusted' | 'user' +keylen:= 64 + + +Example of encrypted key usage with the eCryptfs filesystem: + +Create an encrypted key "1000100010001000" of length 64 bytes with format +'ecryptfs' and save it using a previously loaded user key "test": + + $ keyctl add encrypted 1000100010001000 "new ecryptfs user:test 64" @u + 19184530 + + $ keyctl print 19184530 + ecryptfs user:test 64 490045d4bfe48c99f0d465fbbbb79e7500da954178e2de0697 + dd85091f5450a0511219e9f7cd70dcd498038181466f78ac8d4c19504fcc72402bfc41c2 + f253a41b7507ccaa4b2b03fff19a69d1cc0b16e71746473f023a95488b6edfd86f7fdd40 + 9d292e4bacded1258880122dd553a661 + + $ keyctl pipe 19184530 > ecryptfs.blob + +Mount an eCryptfs filesystem using the created encrypted key "1000100010001000" +into the '/secret' directory: + + $ mount -i -t ecryptfs -oecryptfs_sig=1000100010001000,\ + ecryptfs_cipher=aes,ecryptfs_key_bytes=32 /secret /secret diff --git a/Documentation/security/keys-trusted-encrypted.txt b/Documentation/security/keys-trusted-encrypted.txt index 8fb79bc1ac4..5f50ccabfc8 100644 --- a/Documentation/security/keys-trusted-encrypted.txt +++ b/Documentation/security/keys-trusted-encrypted.txt @@ -53,12 +53,19 @@ they are only as secure as the user key encrypting them. The master user key should therefore be loaded in as secure a way as possible, preferably early in boot. +The decrypted portion of encrypted keys can contain either a simple symmetric +key or a more complex structure. The format of the more complex structure is +application specific, which is identified by 'format'. + Usage: - keyctl add encrypted name "new key-type:master-key-name keylen" ring - keyctl add encrypted name "load hex_blob" ring - keyctl update keyid "update key-type:master-key-name" + keyctl add encrypted name "new [format] key-type:master-key-name keylen" + ring + keyctl add encrypted name "load hex_blob" ring + keyctl update keyid "update key-type:master-key-name" + +format:= 'default | ecryptfs' +key-type:= 'trusted' | 'user' -where 'key-type' is either 'trusted' or 'user'. Examples of trusted and encrypted key usage: @@ -114,15 +121,25 @@ Reseal a trusted key under new pcr values: 7ef6a24defe4846104209bf0c3eced7fa1a672ed5b125fc9d8cd88b476a658a4434644ef df8ae9a178e9f83ba9f08d10fa47e4226b98b0702f06b3b8 -Create and save an encrypted key "evm" using the above trusted key "kmk": +The initial consumer of trusted keys is EVM, which at boot time needs a high +quality symmetric key for HMAC protection of file metadata. The use of a +trusted key provides strong guarantees that the EVM key has not been +compromised by a user level problem, and when sealed to specific boot PCR +values, protects against boot and offline attacks. Create and save an +encrypted key "evm" using the above trusted key "kmk": +option 1: omitting 'format' $ keyctl add encrypted evm "new trusted:kmk 32" @u 159771175 +option 2: explicitly defining 'format' as 'default' + $ keyctl add encrypted evm "new default trusted:kmk 32" @u + 159771175 + $ keyctl print 159771175 - trusted:kmk 32 2375725ad57798846a9bbd240de8906f006e66c03af53b1b382dbbc55 - be2a44616e4959430436dc4f2a7a9659aa60bb4652aeb2120f149ed197c564e024717c64 - 5972dcb82ab2dde83376d82b2e3c09ffc + default trusted:kmk 32 2375725ad57798846a9bbd240de8906f006e66c03af53b1b3 + 82dbbc55be2a44616e4959430436dc4f2a7a9659aa60bb4652aeb2120f149ed197c564e0 + 24717c64 5972dcb82ab2dde83376d82b2e3c09ffc $ keyctl pipe 159771175 > evm.blob @@ -132,14 +149,11 @@ Load an encrypted key "evm" from saved blob: 831684262 $ keyctl print 831684262 - trusted:kmk 32 2375725ad57798846a9bbd240de8906f006e66c03af53b1b382dbbc55 - be2a44616e4959430436dc4f2a7a9659aa60bb4652aeb2120f149ed197c564e024717c64 - 5972dcb82ab2dde83376d82b2e3c09ffc - - -The initial consumer of trusted keys is EVM, which at boot time needs a high -quality symmetric key for HMAC protection of file metadata. The use of a -trusted key provides strong guarantees that the EVM key has not been -compromised by a user level problem, and when sealed to specific boot PCR -values, protects against boot and offline attacks. Other uses for trusted and -encrypted keys, such as for disk and file encryption are anticipated. + default trusted:kmk 32 2375725ad57798846a9bbd240de8906f006e66c03af53b1b3 + 82dbbc55be2a44616e4959430436dc4f2a7a9659aa60bb4652aeb2120f149ed197c564e0 + 24717c64 5972dcb82ab2dde83376d82b2e3c09ffc + +Other uses for trusted and encrypted keys, such as for disk and file encryption +are anticipated. In particular the new format 'ecryptfs' has been defined in +in order to use encrypted keys to mount an eCryptfs filesystem. More details +about the usage can be found in the file 'Documentation/keys-ecryptfs.txt'. diff --git a/Documentation/serial/computone.txt b/Documentation/serial/computone.txt index c57ea4781e5..60a6f657c37 100644 --- a/Documentation/serial/computone.txt +++ b/Documentation/serial/computone.txt @@ -87,7 +87,7 @@ c) Set address on ISA cards then: edit /usr/src/linux/drivers/char/ip2.c (Optional - may be specified on kernel command line now) d) Run "make zImage" or whatever target you prefer. -e) mv /usr/src/linux/arch/i386/boot/zImage to /boot. +e) mv /usr/src/linux/arch/x86/boot/zImage to /boot. f) Add new config for this kernel into /etc/lilo.conf, run "lilo" or copy to a floppy disk and boot from that floppy disk. g) Reboot using this kernel diff --git a/Documentation/sysctl/kernel.txt b/Documentation/sysctl/kernel.txt index 1c7fb0a94e2..704e474a93d 100644 --- a/Documentation/sysctl/kernel.txt +++ b/Documentation/sysctl/kernel.txt @@ -61,6 +61,7 @@ show up in /proc/sys/kernel: - rtsig-nr - sem - sg-big-buff [ generic SCSI device (sg) ] +- shm_rmid_forced - shmall - shmmax [ sysv ipc ] - shmmni @@ -518,6 +519,27 @@ kernel. This value defaults to SHMMAX. ============================================================== +shm_rmid_forced: + +Linux lets you set resource limits, including how much memory one +process can consume, via setrlimit(2). Unfortunately, shared memory +segments are allowed to exist without association with any process, and +thus might not be counted against any resource limits. If enabled, +shared memory segments are automatically destroyed when their attach +count becomes zero after a detach or a process termination. It will +also destroy segments that were created, but never attached to, on exit +from the process. The only use left for IPC_RMID is to immediately +destroy an unattached segment. Of course, this breaks the way things are +defined, so some applications might stop working. Note that this +feature will do you no good unless you also configure your resource +limits (in particular, RLIMIT_AS and RLIMIT_NPROC). Most systems don't +need this. + +Note that if you change this from 0 to 1, already created segments +without users and with a dead originative process will be destroyed. + +============================================================== + softlockup_thresh: This value can be used to lower the softlockup tolerance threshold. The diff --git a/Documentation/usb/ehci.txt b/Documentation/usb/ehci.txt index 9dcafa7d930..160bd6c3ab7 100644 --- a/Documentation/usb/ehci.txt +++ b/Documentation/usb/ehci.txt @@ -210,3 +210,5 @@ TBD: Interrupt and ISO transfer performance issues. Those periodic transfers are fully scheduled, so the main issue is likely to be how to trigger "high bandwidth" modes. +TBD: More than standard 80% periodic bandwidth allocation is possible +through sysfs uframe_periodic_max parameter. Describe that. diff --git a/Documentation/usb/gadget_hid.txt b/Documentation/usb/gadget_hid.txt index f4a51f56742..12696c2e43f 100644 --- a/Documentation/usb/gadget_hid.txt +++ b/Documentation/usb/gadget_hid.txt @@ -81,8 +81,8 @@ Send and receive HID reports to do this. hid_gadget_test is a small interactive program to test the HID - gadget driver. To use, point it at a hidg device and set the - device type (keyboard / mouse / joystick) - E.G.: + gadget driver. To use, point it at a hidg device and set the + device type (keyboard / mouse / joystick) - E.G.: # hid_gadget_test /dev/hidg0 keyboard @@ -97,7 +97,7 @@ Send and receive HID reports HID gadget. Another interesting example is the caps lock test. Type - -–caps-lock and hit return. A report is then sent by the + --caps-lock and hit return. A report is then sent by the gadget and you should receive the host answer, corresponding to the caps lock LED status. diff --git a/Documentation/video4linux/API.html b/Documentation/video4linux/API.html index d72fd2aa915..256f8efa992 100644 --- a/Documentation/video4linux/API.html +++ b/Documentation/video4linux/API.html @@ -9,7 +9,7 @@ <table border="0"> <tr> <td> - <a href="http://www.linuxtv.org/downloads/video4linux/API/V4L1_API.html">V4L original API</a> + <a href="http://linuxtv.org/downloads/legacy/video4linux/API/V4L1_API.html">V4L original API</a> </td> <td> Obsoleted by V4L2 API diff --git a/Documentation/video4linux/CARDLIST.cx23885 b/Documentation/video4linux/CARDLIST.cx23885 index 87c46347bd6..8910449d23a 100644 --- a/Documentation/video4linux/CARDLIST.cx23885 +++ b/Documentation/video4linux/CARDLIST.cx23885 @@ -27,3 +27,5 @@ 26 -> Hauppauge WinTV-HVR1290 [0070:8551] 27 -> Mygica X8558 PRO DMB-TH [14f1:8578] 28 -> LEADTEK WinFast PxTV1200 [107d:6f22] + 29 -> GoTView X5 3D Hybrid [5654:2390] + 30 -> NetUP Dual DVB-T/C-CI RF [1b55:e2e4] diff --git a/Documentation/video4linux/CARDLIST.cx88 b/Documentation/video4linux/CARDLIST.cx88 index 42517d9121d..d9c0f119196 100644 --- a/Documentation/video4linux/CARDLIST.cx88 +++ b/Documentation/video4linux/CARDLIST.cx88 @@ -84,3 +84,4 @@ 83 -> Prof 7301 DVB-S/S2 [b034:3034] 84 -> Samsung SMT 7020 DVB-S [18ac:dc00,18ac:dccd] 85 -> Twinhan VP-1027 DVB-S [1822:0023] + 86 -> TeVii S464 DVB-S/S2 [d464:9022] diff --git a/Documentation/video4linux/CARDLIST.em28xx b/Documentation/video4linux/CARDLIST.em28xx index 9aae449440d..4a7b3df6d8b 100644 --- a/Documentation/video4linux/CARDLIST.em28xx +++ b/Documentation/video4linux/CARDLIST.em28xx @@ -74,3 +74,5 @@ 74 -> Actionmaster/LinXcel/Digitus VC211A (em2800) 75 -> Dikom DK300 (em2882) 76 -> KWorld PlusTV 340U or UB435-Q (ATSC) (em2870) [1b80:a340] + 77 -> EM2874 Leadership ISDBT (em2874) + 78 -> PCTV nanoStick T2 290e (em28174) diff --git a/Documentation/video4linux/CARDLIST.saa7134 b/Documentation/video4linux/CARDLIST.saa7134 index 6b4c72d8862..7efae9bd73e 100644 --- a/Documentation/video4linux/CARDLIST.saa7134 +++ b/Documentation/video4linux/CARDLIST.saa7134 @@ -182,3 +182,7 @@ 181 -> TechoTrend TT-budget T-3000 [13c2:2804] 182 -> Kworld PCI SBTVD/ISDB-T Full-Seg Hybrid [17de:b136] 183 -> Compro VideoMate Vista M1F [185b:c900] +184 -> Encore ENLTV-FM 3 [1a7f:2108] +185 -> MagicPro ProHDTV Pro2 DMB-TH/Hybrid [17de:d136] +186 -> Beholder BeholdTV 501 [5ace:5010] +187 -> Beholder BeholdTV 503 FM [5ace:5030] diff --git a/Documentation/video4linux/CARDLIST.tuner b/Documentation/video4linux/CARDLIST.tuner index e67c1db9685..6323b7a2071 100644 --- a/Documentation/video4linux/CARDLIST.tuner +++ b/Documentation/video4linux/CARDLIST.tuner @@ -78,8 +78,10 @@ tuner=77 - TCL tuner MF02GIP-5N-E tuner=78 - Philips FMD1216MEX MK3 Hybrid Tuner tuner=79 - Philips PAL/SECAM multi (FM1216 MK5) tuner=80 - Philips FQ1216LME MK3 PAL/SECAM w/active loopthrough +tuner=81 - Xceive 4000 tuner tuner=81 - Partsnic (Daewoo) PTI-5NF05 tuner=82 - Philips CU1216L tuner=83 - NXP TDA18271 tuner=84 - Sony BTF-Pxn01Z tuner=85 - Philips FQ1236 MK5 +tuner=86 - Tena TNF5337 MFD diff --git a/Documentation/video4linux/CARDLIST.usbvision b/Documentation/video4linux/CARDLIST.usbvision index 0b72d3fee17..6fd1af36514 100644 --- a/Documentation/video4linux/CARDLIST.usbvision +++ b/Documentation/video4linux/CARDLIST.usbvision @@ -63,3 +63,5 @@ 62 -> Pinnacle PCTV Bungee USB (PAL) FM [2304:0419] 63 -> Hauppauge WinTv-USB [2400:4200] 64 -> Pinnacle Studio PCTV USB (NTSC) FM V3 [2304:0113] + 65 -> Nogatech USB MicroCam NTSC (NV3000N) [0573:3000] + 66 -> Nogatech USB MicroCam PAL (NV3001P) [0573:3001] diff --git a/Documentation/video4linux/README.davinci-vpbe b/Documentation/video4linux/README.davinci-vpbe new file mode 100644 index 00000000000..7a460b0685b --- /dev/null +++ b/Documentation/video4linux/README.davinci-vpbe @@ -0,0 +1,93 @@ + + VPBE V4L2 driver design + ====================================================================== + + File partitioning + ----------------- + V4L2 display device driver + drivers/media/video/davinci/vpbe_display.c + drivers/media/video/davinci/vpbe_display.h + + VPBE display controller + drivers/media/video/davinci/vpbe.c + drivers/media/video/davinci/vpbe.h + + VPBE venc sub device driver + drivers/media/video/davinci/vpbe_venc.c + drivers/media/video/davinci/vpbe_venc.h + drivers/media/video/davinci/vpbe_venc_regs.h + + VPBE osd driver + drivers/media/video/davinci/vpbe_osd.c + drivers/media/video/davinci/vpbe_osd.h + drivers/media/video/davinci/vpbe_osd_regs.h + + Functional partitioning + ----------------------- + + Consists of the following (in the same order as the list under file + partitioning):- + + 1. V4L2 display driver + Implements creation of video2 and video3 device nodes and + provides v4l2 device interface to manage VID0 and VID1 layers. + + 2. Display controller + Loads up VENC, OSD and external encoders such as ths8200. It provides + a set of API calls to V4L2 drivers to set the output/standards + in the VENC or external sub devices. It also provides + a device object to access the services from OSD subdevice + using sub device ops. The connection of external encoders to VENC LCD + controller port is done at init time based on default output and standard + selection or at run time when application change the output through + V4L2 IOCTLs. + + When connected to an external encoder, vpbe controller is also responsible + for setting up the interface between VENC and external encoders based on + board specific settings (specified in board-xxx-evm.c). This allows + interfacing external encoders such as ths8200. The setup_if_config() + is implemented for this as well as configure_venc() (part of the next patch) + API to set timings in VENC for a specific display resolution. As of this + patch series, the interconnection and enabling and setting of the external + encoders is not present, and would be a part of the next patch series. + + 3. VENC subdevice module + Responsible for setting outputs provided through internal DACs and also + setting timings at LCD controller port when external encoders are connected + at the port or LCD panel timings required. When external encoder/LCD panel + is connected, the timings for a specific standard/preset is retrieved from + the board specific table and the values are used to set the timings in + venc using non-standard timing mode. + + Support LCD Panel displays using the VENC. For example to support a Logic + PD display, it requires setting up the LCD controller port with a set of + timings for the resolution supported and setting the dot clock. So we could + add the available outputs as a board specific entry (i.e add the "LogicPD" + output name to board-xxx-evm.c). A table of timings for various LCDs + supported can be maintained in the board specific setup file to support + various LCD displays.As of this patch a basic driver is present, and this + support for external encoders and displays forms a part of the next + patch series. + + 4. OSD module + OSD module implements all OSD layer management and hardware specific + features. The VPBE module interacts with the OSD for enabling and + disabling appropriate features of the OSD. + + Current status:- + + A fully functional working version of the V4L2 driver is available. This + driver has been tested with NTSC and PAL standards and buffer streaming. + + Following are TBDs. + + vpbe display controller + - Add support for external encoders. + - add support for selecting external encoder as default at probe time. + + vpbe venc sub device + - add timings for supporting ths8200 + - add support for LogicPD LCD. + + FB drivers + - Add support for fbdev drivers.- Ready and part of subsequent patches. diff --git a/Documentation/video4linux/v4l2-controls.txt b/Documentation/video4linux/v4l2-controls.txt index 881e7f44491..9346fc8cbf2 100644 --- a/Documentation/video4linux/v4l2-controls.txt +++ b/Documentation/video4linux/v4l2-controls.txt @@ -277,16 +277,13 @@ implement g_volatile_ctrl like this: { switch (ctrl->id) { case V4L2_CID_BRIGHTNESS: - ctrl->cur.val = read_reg(0x123); + ctrl->val = read_reg(0x123); break; } } -The 'new value' union is not used in g_volatile_ctrl. In general controls -that need to implement g_volatile_ctrl are read-only controls. - -Note that if one or more controls in a control cluster are marked as volatile, -then all the controls in the cluster are seen as volatile. +Note that you use the 'new value' union as well in g_volatile_ctrl. In general +controls that need to implement g_volatile_ctrl are read-only controls. To mark a control as volatile you have to set the is_volatile flag: @@ -453,6 +450,25 @@ In the example above the following are equivalent for the VOLUME case: ctrl == ctrl->cluster[AUDIO_CL_VOLUME] == state->audio_cluster[AUDIO_CL_VOLUME] ctrl->cluster[AUDIO_CL_MUTE] == state->audio_cluster[AUDIO_CL_MUTE] +In practice using cluster arrays like this becomes very tiresome. So instead +the following equivalent method is used: + + struct { + /* audio cluster */ + struct v4l2_ctrl *volume; + struct v4l2_ctrl *mute; + }; + +The anonymous struct is used to clearly 'cluster' these two control pointers, +but it serves no other purpose. The effect is the same as creating an +array with two control pointers. So you can just do: + + state->volume = v4l2_ctrl_new_std(&state->ctrl_handler, ...); + state->mute = v4l2_ctrl_new_std(&state->ctrl_handler, ...); + v4l2_ctrl_cluster(2, &state->volume); + +And in foo_s_ctrl you can use these pointers directly: state->mute->val. + Note that controls in a cluster may be NULL. For example, if for some reason mute was never added (because the hardware doesn't support that particular feature), then mute will be NULL. So in that case we have a @@ -475,6 +491,43 @@ controls, then the 'is_new' flag would be 1 for both controls. The 'is_new' flag is always 1 when called from v4l2_ctrl_handler_setup(). +Handling autogain/gain-type Controls with Auto Clusters +======================================================= + +A common type of control cluster is one that handles 'auto-foo/foo'-type +controls. Typical examples are autogain/gain, autoexposure/exposure, +autowhitebalance/red balance/blue balance. In all cases you have one controls +that determines whether another control is handled automatically by the hardware, +or whether it is under manual control from the user. + +If the cluster is in automatic mode, then the manual controls should be +marked inactive. When the volatile controls are read the g_volatile_ctrl +operation should return the value that the hardware's automatic mode set up +automatically. + +If the cluster is put in manual mode, then the manual controls should become +active again and the is_volatile flag should be ignored (so g_volatile_ctrl is +no longer called while in manual mode). + +Finally the V4L2_CTRL_FLAG_UPDATE should be set for the auto control since +changing that control affects the control flags of the manual controls. + +In order to simplify this a special variation of v4l2_ctrl_cluster was +introduced: + +void v4l2_ctrl_auto_cluster(unsigned ncontrols, struct v4l2_ctrl **controls, + u8 manual_val, bool set_volatile); + +The first two arguments are identical to v4l2_ctrl_cluster. The third argument +tells the framework which value switches the cluster into manual mode. The +last argument will optionally set the is_volatile flag for the non-auto controls. + +The first control of the cluster is assumed to be the 'auto' control. + +Using this function will ensure that you don't need to handle all the complex +flag and volatile handling. + + VIDIOC_LOG_STATUS Support ========================= @@ -636,9 +689,7 @@ button controls are write-only controls. -EINVAL as the spec says. 5) The spec does not mention what should happen when you try to set/get a -control class controls. ivtv currently returns -EINVAL (indicating that the -control ID does not exist) while the framework will return -EACCES, which -makes more sense. +control class controls. The framework will return -EACCES. Proposals for Extensions diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt index cf21f7aae97..f8dcabf7852 100644 --- a/Documentation/video4linux/v4l2-framework.txt +++ b/Documentation/video4linux/v4l2-framework.txt @@ -817,11 +817,7 @@ int my_open(struct file *file) ... - ret = v4l2_fh_init(&my_fh->fh, vfd); - if (ret) { - kfree(my_fh); - return ret; - } + v4l2_fh_init(&my_fh->fh, vfd); ... @@ -844,7 +840,7 @@ int my_release(struct file *file) Below is a short description of the v4l2_fh functions used: -int v4l2_fh_init(struct v4l2_fh *fh, struct video_device *vdev) +void v4l2_fh_init(struct v4l2_fh *fh, struct video_device *vdev) Initialise the file handle. This *MUST* be performed in the driver's v4l2_file_operations->open() handler. @@ -901,14 +897,38 @@ 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: +Events are defined by a type and an optional ID. The ID may refer to a V4L2 +object such as a control ID. If unused, then the ID is 0. + +When the user subscribes to an event the driver will allocate a number of +kevent structs for that event. So every (type, ID) event tuple will have +its own set of kevent structs. This guarantees that if a driver is generating +lots of events of one type in a short time, then that will not overwrite +events of another type. + +But if you get more events of one type than the number of kevents that were +reserved, then the oldest event will be dropped and the new one added. + +Furthermore, the internal struct v4l2_subscribed_event has merge() and +replace() callbacks which drivers can set. These callbacks are called when +a new event is raised and there is no more room. The replace() callback +allows you to replace the payload of the old event with that of the new event, +merging any relevant data from the old payload into the new payload that +replaces it. It is called when this event type has only one kevent struct +allocated. The merge() callback allows you to merge the oldest event payload +into that of the second-oldest event payload. It is called when there are two +or more kevent structs allocated. -- v4l2_event_alloc() +This way no status information is lost, just the intermediate steps leading +up to that state. - 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. +A good example of these replace/merge callbacks is in v4l2-event.c: +ctrls_replace() and ctrls_merge() callbacks for the control event. + +Note: these callbacks can be called from interrupt context, so they must be +fast. + +Useful functions: - v4l2_event_queue() @@ -920,7 +940,9 @@ Useful functions: 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_subscribe() to subscribe the event. The last argument is the + size of the event queue for this event. If it is 0, then the framework + will fill in a default value (this depends on the event type). - v4l2_event_unsubscribe() @@ -935,14 +957,8 @@ Useful functions: 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(). +can use v4l2_fh->wait (a 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 @@ -952,5 +968,4 @@ 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 <URL:http://gitorious.org/omap3camera> as of -writing this. +3 ISP driver (drivers/media/video/omap3isp). diff --git a/Documentation/virtual/00-INDEX b/Documentation/virtual/00-INDEX index fe0251c4cfb..8e601991d91 100644 --- a/Documentation/virtual/00-INDEX +++ b/Documentation/virtual/00-INDEX @@ -8,3 +8,6 @@ lguest/ - Extremely simple hypervisor for experimental/educational use. uml/ - User Mode Linux, builds/runs Linux kernel as a userspace program. +virtio.txt + - Text version of draft virtio spec. + See http://ozlabs.org/~rusty/virtio-spec diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 42542eb802c..b0e4b9cd6a6 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -180,6 +180,19 @@ KVM_CHECK_EXTENSION ioctl() to determine the value for max_vcpus at run-time. If the KVM_CAP_NR_VCPUS does not exist, you should assume that max_vcpus is 4 cpus max. +On powerpc using book3s_hv mode, the vcpus are mapped onto virtual +threads in one or more virtual CPU cores. (This is because the +hardware requires all the hardware threads in a CPU core to be in the +same partition.) The KVM_CAP_PPC_SMT capability indicates the number +of vcpus per virtual core (vcore). The vcore id is obtained by +dividing the vcpu id by the number of vcpus per vcore. The vcpus in a +given vcore will always be in the same physical core as each other +(though that might be a different physical core from time to time). +Userspace can control the threading (SMT) mode of the guest by its +allocation of vcpu ids. For example, if userspace wants +single-threaded guest vcpus, it should make all vcpu ids be a multiple +of the number of vcpus per vcore. + 4.8 KVM_GET_DIRTY_LOG (vm ioctl) Capability: basic @@ -1143,15 +1156,10 @@ Assigns an IRQ to a passed-through device. struct kvm_assigned_irq { __u32 assigned_dev_id; - __u32 host_irq; + __u32 host_irq; /* ignored (legacy field) */ __u32 guest_irq; __u32 flags; union { - struct { - __u32 addr_lo; - __u32 addr_hi; - __u32 data; - } guest_msi; __u32 reserved[12]; }; }; @@ -1239,8 +1247,10 @@ Type: vm ioctl Parameters: struct kvm_assigned_msix_nr (in) Returns: 0 on success, -1 on error -Set the number of MSI-X interrupts for an assigned device. This service can -only be called once in the lifetime of an assigned device. +Set the number of MSI-X interrupts for an assigned device. The number is +reset again by terminating the MSI-X assignment of the device via +KVM_DEASSIGN_DEV_IRQ. Calling this service more than once at any earlier +point will fail. struct kvm_assigned_msix_nr { __u32 assigned_dev_id; @@ -1291,6 +1301,135 @@ Returns the tsc frequency of the guest. The unit of the return value is KHz. If the host has unstable tsc this ioctl returns -EIO instead as an error. +4.56 KVM_GET_LAPIC + +Capability: KVM_CAP_IRQCHIP +Architectures: x86 +Type: vcpu ioctl +Parameters: struct kvm_lapic_state (out) +Returns: 0 on success, -1 on error + +#define KVM_APIC_REG_SIZE 0x400 +struct kvm_lapic_state { + char regs[KVM_APIC_REG_SIZE]; +}; + +Reads the Local APIC registers and copies them into the input argument. The +data format and layout are the same as documented in the architecture manual. + +4.57 KVM_SET_LAPIC + +Capability: KVM_CAP_IRQCHIP +Architectures: x86 +Type: vcpu ioctl +Parameters: struct kvm_lapic_state (in) +Returns: 0 on success, -1 on error + +#define KVM_APIC_REG_SIZE 0x400 +struct kvm_lapic_state { + char regs[KVM_APIC_REG_SIZE]; +}; + +Copies the input argument into the the Local APIC registers. The data format +and layout are the same as documented in the architecture manual. + +4.58 KVM_IOEVENTFD + +Capability: KVM_CAP_IOEVENTFD +Architectures: all +Type: vm ioctl +Parameters: struct kvm_ioeventfd (in) +Returns: 0 on success, !0 on error + +This ioctl attaches or detaches an ioeventfd to a legal pio/mmio address +within the guest. A guest write in the registered address will signal the +provided event instead of triggering an exit. + +struct kvm_ioeventfd { + __u64 datamatch; + __u64 addr; /* legal pio/mmio address */ + __u32 len; /* 1, 2, 4, or 8 bytes */ + __s32 fd; + __u32 flags; + __u8 pad[36]; +}; + +The following flags are defined: + +#define KVM_IOEVENTFD_FLAG_DATAMATCH (1 << kvm_ioeventfd_flag_nr_datamatch) +#define KVM_IOEVENTFD_FLAG_PIO (1 << kvm_ioeventfd_flag_nr_pio) +#define KVM_IOEVENTFD_FLAG_DEASSIGN (1 << kvm_ioeventfd_flag_nr_deassign) + +If datamatch flag is set, the event will be signaled only if the written value +to the registered address is equal to datamatch in struct kvm_ioeventfd. + +4.62 KVM_CREATE_SPAPR_TCE + +Capability: KVM_CAP_SPAPR_TCE +Architectures: powerpc +Type: vm ioctl +Parameters: struct kvm_create_spapr_tce (in) +Returns: file descriptor for manipulating the created TCE table + +This creates a virtual TCE (translation control entry) table, which +is an IOMMU for PAPR-style virtual I/O. It is used to translate +logical addresses used in virtual I/O into guest physical addresses, +and provides a scatter/gather capability for PAPR virtual I/O. + +/* for KVM_CAP_SPAPR_TCE */ +struct kvm_create_spapr_tce { + __u64 liobn; + __u32 window_size; +}; + +The liobn field gives the logical IO bus number for which to create a +TCE table. The window_size field specifies the size of the DMA window +which this TCE table will translate - the table will contain one 64 +bit TCE entry for every 4kiB of the DMA window. + +When the guest issues an H_PUT_TCE hcall on a liobn for which a TCE +table has been created using this ioctl(), the kernel will handle it +in real mode, updating the TCE table. H_PUT_TCE calls for other +liobns will cause a vm exit and must be handled by userspace. + +The return value is a file descriptor which can be passed to mmap(2) +to map the created TCE table into userspace. This lets userspace read +the entries written by kernel-handled H_PUT_TCE calls, and also lets +userspace update the TCE table directly which is useful in some +circumstances. + +4.63 KVM_ALLOCATE_RMA + +Capability: KVM_CAP_PPC_RMA +Architectures: powerpc +Type: vm ioctl +Parameters: struct kvm_allocate_rma (out) +Returns: file descriptor for mapping the allocated RMA + +This allocates a Real Mode Area (RMA) from the pool allocated at boot +time by the kernel. An RMA is a physically-contiguous, aligned region +of memory used on older POWER processors to provide the memory which +will be accessed by real-mode (MMU off) accesses in a KVM guest. +POWER processors support a set of sizes for the RMA that usually +includes 64MB, 128MB, 256MB and some larger powers of two. + +/* for KVM_ALLOCATE_RMA */ +struct kvm_allocate_rma { + __u64 rma_size; +}; + +The return value is a file descriptor which can be passed to mmap(2) +to map the allocated RMA into userspace. The mapped area can then be +passed to the KVM_SET_USER_MEMORY_REGION ioctl to establish it as the +RMA for a virtual machine. The size of the RMA in bytes (which is +fixed at host kernel boot time) is returned in the rma_size field of +the argument structure. + +The KVM_CAP_PPC_RMA capability is 1 or 2 if the KVM_ALLOCATE_RMA ioctl +is supported; 2 if the processor requires all virtual machines to have +an RMA, or 1 if the processor can use an RMA but doesn't require it, +because it supports the Virtual RMA (VRMA) facility. + 5. The kvm_run structure Application code obtains a pointer to the kvm_run structure by @@ -1473,6 +1612,23 @@ Userspace can now handle the hypercall and when it's done modify the gprs as necessary. Upon guest entry all guest GPRs will then be replaced by the values in this struct. + /* KVM_EXIT_PAPR_HCALL */ + struct { + __u64 nr; + __u64 ret; + __u64 args[9]; + } papr_hcall; + +This is used on 64-bit PowerPC when emulating a pSeries partition, +e.g. with the 'pseries' machine type in qemu. It occurs when the +guest does a hypercall using the 'sc 1' instruction. The 'nr' field +contains the hypercall number (from the guest R3), and 'args' contains +the arguments (from the guest R4 - R12). Userspace should put the +return code in 'ret' and any extra returned values in args[]. +The possible hypercalls are defined in the Power Architecture Platform +Requirements (PAPR) document available from www.power.org (free +developer registration required to access it). + /* Fix the size of the union. */ char padding[256]; }; diff --git a/Documentation/virtual/kvm/mmu.txt b/Documentation/virtual/kvm/mmu.txt index f46aa58389c..5dc972c09b5 100644 --- a/Documentation/virtual/kvm/mmu.txt +++ b/Documentation/virtual/kvm/mmu.txt @@ -165,6 +165,10 @@ Shadow pages contain the following information: Contains the value of efer.nxe for which the page is valid. role.cr0_wp: Contains the value of cr0.wp for which the page is valid. + role.smep_andnot_wp: + Contains the value of cr4.smep && !cr0.wp for which the page is valid + (pages for which this is true are different from other pages; see the + treatment of cr0.wp=0 below). gfn: Either the guest page table containing the translations shadowed by this page, or the base page frame for linear translations. See role.direct. @@ -317,6 +321,20 @@ on fault type: (user write faults generate a #PF) +In the first case there is an additional complication if CR4.SMEP is +enabled: since we've turned the page into a kernel page, the kernel may now +execute it. We handle this by also setting spte.nx. If we get a user +fetch or read fault, we'll change spte.u=1 and spte.nx=gpte.nx back. + +To prevent an spte that was converted into a kernel page with cr0.wp=0 +from being written by the kernel after cr0.wp has changed to 1, we make +the value of cr0.wp part of the page role. This means that an spte created +with one value of cr0.wp cannot be used when cr0.wp has a different value - +it will simply be missed by the shadow page lookup code. A similar issue +exists when an spte created with cr0.wp=0 and cr4.smep=0 is used after +changing cr4.smep to 1. To avoid this, the value of !cr0.wp && cr4.smep +is also made a part of the page role. + Large pages =========== diff --git a/Documentation/virtual/kvm/msr.txt b/Documentation/virtual/kvm/msr.txt index d079aed27e0..50317809113 100644 --- a/Documentation/virtual/kvm/msr.txt +++ b/Documentation/virtual/kvm/msr.txt @@ -185,3 +185,37 @@ MSR_KVM_ASYNC_PF_EN: 0x4b564d02 Currently type 2 APF will be always delivered on the same vcpu as type 1 was, but guest should not rely on that. + +MSR_KVM_STEAL_TIME: 0x4b564d03 + + data: 64-byte alignment physical address of a memory area which must be + in guest RAM, plus an enable bit in bit 0. This memory is expected to + hold a copy of the following structure: + + struct kvm_steal_time { + __u64 steal; + __u32 version; + __u32 flags; + __u32 pad[12]; + } + + whose data will be filled in by the hypervisor periodically. Only one + write, or registration, is needed for each VCPU. The interval between + updates of this structure is arbitrary and implementation-dependent. + The hypervisor may update this structure at any time it sees fit until + anything with bit0 == 0 is written to it. Guest is required to make sure + this structure is initialized to zero. + + Fields have the following meanings: + + version: a sequence counter. In other words, guest has to check + this field before and after grabbing time information and make + sure they are both equal and even. An odd version indicates an + in-progress update. + + flags: At this point, always zero. May be used to indicate + changes in this structure in the future. + + steal: the amount of time in which this vCPU did not run, in + nanoseconds. Time during which the vcpu is idle, will not be + reported as steal time. diff --git a/Documentation/virtual/kvm/nested-vmx.txt b/Documentation/virtual/kvm/nested-vmx.txt new file mode 100644 index 00000000000..8ed937de116 --- /dev/null +++ b/Documentation/virtual/kvm/nested-vmx.txt @@ -0,0 +1,251 @@ +Nested VMX +========== + +Overview +--------- + +On Intel processors, KVM uses Intel's VMX (Virtual-Machine eXtensions) +to easily and efficiently run guest operating systems. Normally, these guests +*cannot* themselves be hypervisors running their own guests, because in VMX, +guests cannot use VMX instructions. + +The "Nested VMX" feature adds this missing capability - of running guest +hypervisors (which use VMX) with their own nested guests. It does so by +allowing a guest to use VMX instructions, and correctly and efficiently +emulating them using the single level of VMX available in the hardware. + +We describe in much greater detail the theory behind the nested VMX feature, +its implementation and its performance characteristics, in the OSDI 2010 paper +"The Turtles Project: Design and Implementation of Nested Virtualization", +available at: + + http://www.usenix.org/events/osdi10/tech/full_papers/Ben-Yehuda.pdf + + +Terminology +----------- + +Single-level virtualization has two levels - the host (KVM) and the guests. +In nested virtualization, we have three levels: The host (KVM), which we call +L0, the guest hypervisor, which we call L1, and its nested guest, which we +call L2. + + +Known limitations +----------------- + +The current code supports running Linux guests under KVM guests. +Only 64-bit guest hypervisors are supported. + +Additional patches for running Windows under guest KVM, and Linux under +guest VMware server, and support for nested EPT, are currently running in +the lab, and will be sent as follow-on patchsets. + + +Running nested VMX +------------------ + +The nested VMX feature is disabled by default. It can be enabled by giving +the "nested=1" option to the kvm-intel module. + +No modifications are required to user space (qemu). However, qemu's default +emulated CPU type (qemu64) does not list the "VMX" CPU feature, so it must be +explicitly enabled, by giving qemu one of the following options: + + -cpu host (emulated CPU has all features of the real CPU) + + -cpu qemu64,+vmx (add just the vmx feature to a named CPU type) + + +ABIs +---- + +Nested VMX aims to present a standard and (eventually) fully-functional VMX +implementation for the a guest hypervisor to use. As such, the official +specification of the ABI that it provides is Intel's VMX specification, +namely volume 3B of their "Intel 64 and IA-32 Architectures Software +Developer's Manual". Not all of VMX's features are currently fully supported, +but the goal is to eventually support them all, starting with the VMX features +which are used in practice by popular hypervisors (KVM and others). + +As a VMX implementation, nested VMX presents a VMCS structure to L1. +As mandated by the spec, other than the two fields revision_id and abort, +this structure is *opaque* to its user, who is not supposed to know or care +about its internal structure. Rather, the structure is accessed through the +VMREAD and VMWRITE instructions. +Still, for debugging purposes, KVM developers might be interested to know the +internals of this structure; This is struct vmcs12 from arch/x86/kvm/vmx.c. + +The name "vmcs12" refers to the VMCS that L1 builds for L2. In the code we +also have "vmcs01", the VMCS that L0 built for L1, and "vmcs02" is the VMCS +which L0 builds to actually run L2 - how this is done is explained in the +aforementioned paper. + +For convenience, we repeat the content of struct vmcs12 here. If the internals +of this structure changes, this can break live migration across KVM versions. +VMCS12_REVISION (from vmx.c) should be changed if struct vmcs12 or its inner +struct shadow_vmcs is ever changed. + + typedef u64 natural_width; + struct __packed vmcs12 { + /* According to the Intel spec, a VMCS region must start with + * these two user-visible fields */ + u32 revision_id; + u32 abort; + + u32 launch_state; /* set to 0 by VMCLEAR, to 1 by VMLAUNCH */ + u32 padding[7]; /* room for future expansion */ + + u64 io_bitmap_a; + u64 io_bitmap_b; + u64 msr_bitmap; + u64 vm_exit_msr_store_addr; + u64 vm_exit_msr_load_addr; + u64 vm_entry_msr_load_addr; + u64 tsc_offset; + u64 virtual_apic_page_addr; + u64 apic_access_addr; + u64 ept_pointer; + u64 guest_physical_address; + u64 vmcs_link_pointer; + u64 guest_ia32_debugctl; + u64 guest_ia32_pat; + u64 guest_ia32_efer; + u64 guest_pdptr0; + u64 guest_pdptr1; + u64 guest_pdptr2; + u64 guest_pdptr3; + u64 host_ia32_pat; + u64 host_ia32_efer; + u64 padding64[8]; /* room for future expansion */ + natural_width cr0_guest_host_mask; + natural_width cr4_guest_host_mask; + natural_width cr0_read_shadow; + natural_width cr4_read_shadow; + natural_width cr3_target_value0; + natural_width cr3_target_value1; + natural_width cr3_target_value2; + natural_width cr3_target_value3; + natural_width exit_qualification; + natural_width guest_linear_address; + natural_width guest_cr0; + natural_width guest_cr3; + natural_width guest_cr4; + natural_width guest_es_base; + natural_width guest_cs_base; + natural_width guest_ss_base; + natural_width guest_ds_base; + natural_width guest_fs_base; + natural_width guest_gs_base; + natural_width guest_ldtr_base; + natural_width guest_tr_base; + natural_width guest_gdtr_base; + natural_width guest_idtr_base; + natural_width guest_dr7; + natural_width guest_rsp; + natural_width guest_rip; + natural_width guest_rflags; + natural_width guest_pending_dbg_exceptions; + natural_width guest_sysenter_esp; + natural_width guest_sysenter_eip; + natural_width host_cr0; + natural_width host_cr3; + natural_width host_cr4; + natural_width host_fs_base; + natural_width host_gs_base; + natural_width host_tr_base; + natural_width host_gdtr_base; + natural_width host_idtr_base; + natural_width host_ia32_sysenter_esp; + natural_width host_ia32_sysenter_eip; + natural_width host_rsp; + natural_width host_rip; + natural_width paddingl[8]; /* room for future expansion */ + u32 pin_based_vm_exec_control; + u32 cpu_based_vm_exec_control; + u32 exception_bitmap; + u32 page_fault_error_code_mask; + u32 page_fault_error_code_match; + u32 cr3_target_count; + u32 vm_exit_controls; + u32 vm_exit_msr_store_count; + u32 vm_exit_msr_load_count; + u32 vm_entry_controls; + u32 vm_entry_msr_load_count; + u32 vm_entry_intr_info_field; + u32 vm_entry_exception_error_code; + u32 vm_entry_instruction_len; + u32 tpr_threshold; + u32 secondary_vm_exec_control; + u32 vm_instruction_error; + u32 vm_exit_reason; + u32 vm_exit_intr_info; + u32 vm_exit_intr_error_code; + u32 idt_vectoring_info_field; + u32 idt_vectoring_error_code; + u32 vm_exit_instruction_len; + u32 vmx_instruction_info; + u32 guest_es_limit; + u32 guest_cs_limit; + u32 guest_ss_limit; + u32 guest_ds_limit; + u32 guest_fs_limit; + u32 guest_gs_limit; + u32 guest_ldtr_limit; + u32 guest_tr_limit; + u32 guest_gdtr_limit; + u32 guest_idtr_limit; + u32 guest_es_ar_bytes; + u32 guest_cs_ar_bytes; + u32 guest_ss_ar_bytes; + u32 guest_ds_ar_bytes; + u32 guest_fs_ar_bytes; + u32 guest_gs_ar_bytes; + u32 guest_ldtr_ar_bytes; + u32 guest_tr_ar_bytes; + u32 guest_interruptibility_info; + u32 guest_activity_state; + u32 guest_sysenter_cs; + u32 host_ia32_sysenter_cs; + u32 padding32[8]; /* room for future expansion */ + u16 virtual_processor_id; + u16 guest_es_selector; + u16 guest_cs_selector; + u16 guest_ss_selector; + u16 guest_ds_selector; + u16 guest_fs_selector; + u16 guest_gs_selector; + u16 guest_ldtr_selector; + u16 guest_tr_selector; + u16 host_es_selector; + u16 host_cs_selector; + u16 host_ss_selector; + u16 host_ds_selector; + u16 host_fs_selector; + u16 host_gs_selector; + u16 host_tr_selector; + }; + + +Authors +------- + +These patches were written by: + Abel Gordon, abelg <at> il.ibm.com + Nadav Har'El, nyh <at> il.ibm.com + Orit Wasserman, oritw <at> il.ibm.com + Ben-Ami Yassor, benami <at> il.ibm.com + Muli Ben-Yehuda, muli <at> il.ibm.com + +With contributions by: + Anthony Liguori, aliguori <at> us.ibm.com + Mike Day, mdday <at> us.ibm.com + Michael Factor, factor <at> il.ibm.com + Zvi Dubitzky, dubi <at> il.ibm.com + +And valuable reviews by: + Avi Kivity, avi <at> redhat.com + Gleb Natapov, gleb <at> redhat.com + Marcelo Tosatti, mtosatti <at> redhat.com + Kevin Tian, kevin.tian <at> intel.com + and others. diff --git a/Documentation/virtual/kvm/ppc-pv.txt b/Documentation/virtual/kvm/ppc-pv.txt index 3ab969c5904..2b7ce190cde 100644 --- a/Documentation/virtual/kvm/ppc-pv.txt +++ b/Documentation/virtual/kvm/ppc-pv.txt @@ -68,9 +68,11 @@ page that contains parts of supervisor visible register state. The guest can map this shared page using the KVM hypercall KVM_HC_PPC_MAP_MAGIC_PAGE. With this hypercall issued the guest always gets the magic page mapped at the -desired location in effective and physical address space. For now, we always -map the page to -4096. This way we can access it using absolute load and store -functions. The following instruction reads the first field of the magic page: +desired location. The first parameter indicates the effective address when the +MMU is enabled. The second parameter indicates the address in real mode, if +applicable to the target. For now, we always map the page to -4096. This way we +can access it using absolute load and store functions. The following +instruction reads the first field of the magic page: ld rX, -4096(0) diff --git a/Documentation/virtual/lguest/lguest.c b/Documentation/virtual/lguest/lguest.c index 043bd7df313..d928c134dee 100644 --- a/Documentation/virtual/lguest/lguest.c +++ b/Documentation/virtual/lguest/lguest.c @@ -1996,6 +1996,9 @@ int main(int argc, char *argv[]) /* We use a simple helper to copy the arguments separated by spaces. */ concat((char *)(boot + 1), argv+optind+2); + /* Set kernel alignment to 16M (CONFIG_PHYSICAL_ALIGN) */ + boot->hdr.kernel_alignment = 0x1000000; + /* Boot protocol version: 2.07 supports the fields for lguest. */ boot->hdr.version = 0x207; diff --git a/Documentation/virtual/virtio-spec.txt b/Documentation/virtual/virtio-spec.txt new file mode 100644 index 00000000000..a350ae135b8 --- /dev/null +++ b/Documentation/virtual/virtio-spec.txt @@ -0,0 +1,2200 @@ +[Generated file: see http://ozlabs.org/~rusty/virtio-spec/] +Virtio PCI Card Specification +v0.9.1 DRAFT +- + +Rusty Russell <rusty@rustcorp.com.au>IBM Corporation (Editor) + +2011 August 1. + +Purpose and Description + +This document describes the specifications of the “virtio” family +of PCI[LaTeX Command: nomenclature] devices. These are devices +are found in virtual environments[LaTeX Command: nomenclature], +yet by design they are not all that different from physical PCI +devices, and this document treats them as such. This allows the +guest to use standard PCI drivers and discovery mechanisms. + +The purpose of virtio and this specification is that virtual +environments and guests should have a straightforward, efficient, +standard and extensible mechanism for virtual devices, rather +than boutique per-environment or per-OS mechanisms. + + Straightforward: Virtio PCI devices use normal PCI mechanisms + of interrupts and DMA which should be familiar to any device + driver author. There is no exotic page-flipping or COW + mechanism: it's just a PCI device.[footnote: +This lack of page-sharing implies that the implementation of the +device (e.g. the hypervisor or host) needs full access to the +guest memory. Communication with untrusted parties (i.e. +inter-guest communication) requires copying. +] + + Efficient: Virtio PCI devices consist of rings of descriptors + for input and output, which are neatly separated to avoid cache + effects from both guest and device writing to the same cache + lines. + + Standard: Virtio PCI makes no assumptions about the environment + in which it operates, beyond supporting PCI. In fact the virtio + devices specified in the appendices do not require PCI at all: + they have been implemented on non-PCI buses.[footnote: +The Linux implementation further separates the PCI virtio code +from the specific virtio drivers: these drivers are shared with +the non-PCI implementations (currently lguest and S/390). +] + + Extensible: Virtio PCI devices contain feature bits which are + acknowledged by the guest operating system during device setup. + This allows forwards and backwards compatibility: the device + offers all the features it knows about, and the driver + acknowledges those it understands and wishes to use. + + Virtqueues + +The mechanism for bulk data transport on virtio PCI devices is +pretentiously called a virtqueue. Each device can have zero or +more virtqueues: for example, the network device has one for +transmit and one for receive. + +Each virtqueue occupies two or more physically-contiguous pages +(defined, for the purposes of this specification, as 4096 bytes), +and consists of three parts: + + ++-------------------+-----------------------------------+-----------+ +| Descriptor Table | Available Ring (padding) | Used Ring | ++-------------------+-----------------------------------+-----------+ + + +When the driver wants to send buffers to the device, it puts them +in one or more slots in the descriptor table, and writes the +descriptor indices into the available ring. It then notifies the +device. When the device has finished with the buffers, it writes +the descriptors into the used ring, and sends an interrupt. + +Specification + + PCI Discovery + +Any PCI device with Vendor ID 0x1AF4, and Device ID 0x1000 +through 0x103F inclusive is a virtio device[footnote: +The actual value within this range is ignored +]. The device must also have a Revision ID of 0 to match this +specification. + +The Subsystem Device ID indicates which virtio device is +supported by the device. The Subsystem Vendor ID should reflect +the PCI Vendor ID of the environment (it's currently only used +for informational purposes by the guest). + + ++----------------------+--------------------+---------------+ +| Subsystem Device ID | Virtio Device | Specification | ++----------------------+--------------------+---------------+ ++----------------------+--------------------+---------------+ +| 1 | network card | Appendix C | ++----------------------+--------------------+---------------+ +| 2 | block device | Appendix D | ++----------------------+--------------------+---------------+ +| 3 | console | Appendix E | ++----------------------+--------------------+---------------+ +| 4 | entropy source | Appendix F | ++----------------------+--------------------+---------------+ +| 5 | memory ballooning | Appendix G | ++----------------------+--------------------+---------------+ +| 6 | ioMemory | - | ++----------------------+--------------------+---------------+ +| 9 | 9P transport | - | ++----------------------+--------------------+---------------+ + + + Device Configuration + +To configure the device, we use the first I/O region of the PCI +device. This contains a virtio header followed by a +device-specific region. + +There may be different widths of accesses to the I/O region; the “ +natural” access method for each field in the virtio header must +be used (i.e. 32-bit accesses for 32-bit fields, etc), but the +device-specific region can be accessed using any width accesses, +and should obtain the same results. + +Note that this is possible because while the virtio header is PCI +(i.e. little) endian, the device-specific region is encoded in +the native endian of the guest (where such distinction is +applicable). + + Device Initialization Sequence + +We start with an overview of device initialization, then expand +on the details of the device and how each step is preformed. + + Reset the device. This is not required on initial start up. + + The ACKNOWLEDGE status bit is set: we have noticed the device. + + The DRIVER status bit is set: we know how to drive the device. + + Device-specific setup, including reading the Device Feature + Bits, discovery of virtqueues for the device, optional MSI-X + setup, and reading and possibly writing the virtio + configuration space. + + The subset of Device Feature Bits understood by the driver is + written to the device. + + The DRIVER_OK status bit is set. + + The device can now be used (ie. buffers added to the + virtqueues)[footnote: +Historically, drivers have used the device before steps 5 and 6. +This is only allowed if the driver does not use any features +which would alter this early use of the device. +] + +If any of these steps go irrecoverably wrong, the guest should +set the FAILED status bit to indicate that it has given up on the +device (it can reset the device later to restart if desired). + +We now cover the fields required for general setup in detail. + + Virtio Header + +The virtio header looks as follows: + + ++------------++---------------------+---------------------+----------+--------+---------+---------+---------+--------+ +| Bits || 32 | 32 | 32 | 16 | 16 | 16 | 8 | 8 | ++------------++---------------------+---------------------+----------+--------+---------+---------+---------+--------+ +| Read/Write || R | R+W | R+W | R | R+W | R+W | R+W | R | ++------------++---------------------+---------------------+----------+--------+---------+---------+---------+--------+ +| Purpose || Device | Guest | Queue | Queue | Queue | Queue | Device | ISR | +| || Features bits 0:31 | Features bits 0:31 | Address | Size | Select | Notify | Status | Status | ++------------++---------------------+---------------------+----------+--------+---------+---------+---------+--------+ + + +If MSI-X is enabled for the device, two additional fields +immediately follow this header: + + ++------------++----------------+--------+ +| Bits || 16 | 16 | + +----------------+--------+ ++------------++----------------+--------+ +| Read/Write || R+W | R+W | ++------------++----------------+--------+ +| Purpose || Configuration | Queue | +| (MSI-X) || Vector | Vector | ++------------++----------------+--------+ + + +Finally, if feature bits (VIRTIO_F_FEATURES_HI) this is +immediately followed by two additional fields: + + ++------------++----------------------+---------------------- +| Bits || 32 | 32 ++------------++----------------------+---------------------- +| Read/Write || R | R+W ++------------++----------------------+---------------------- +| Purpose || Device | Guest +| || Features bits 32:63 | Features bits 32:63 ++------------++----------------------+---------------------- + + +Immediately following these general headers, there may be +device-specific headers: + + ++------------++--------------------+ +| Bits || Device Specific | + +--------------------+ ++------------++--------------------+ +| Read/Write || Device Specific | ++------------++--------------------+ +| Purpose || Device Specific... | +| || | ++------------++--------------------+ + + + Device Status + +The Device Status field is updated by the guest to indicate its +progress. This provides a simple low-level diagnostic: it's most +useful to imagine them hooked up to traffic lights on the console +indicating the status of each device. + +The device can be reset by writing a 0 to this field, otherwise +at least one bit should be set: + + ACKNOWLEDGE (1) Indicates that the guest OS has found the + device and recognized it as a valid virtio device. + + DRIVER (2) Indicates that the guest OS knows how to drive the + device. Under Linux, drivers can be loadable modules so there + may be a significant (or infinite) delay before setting this + bit. + + DRIVER_OK (3) Indicates that the driver is set up and ready to + drive the device. + + FAILED (8) Indicates that something went wrong in the guest, + and it has given up on the device. This could be an internal + error, or the driver didn't like the device for some reason, or + even a fatal error during device operation. The device must be + reset before attempting to re-initialize. + + Feature Bits + +The least significant 31 bits of the first configuration field +indicates the features that the device supports (the high bit is +reserved, and will be used to indicate the presence of future +feature bits elsewhere). If more than 31 feature bits are +supported, the device indicates so by setting feature bit 31 (see +[cha:Reserved-Feature-Bits]). The bits are allocated as follows: + + 0 to 23 Feature bits for the specific device type + + 24 to 40 Feature bits reserved for extensions to the queue and + feature negotiation mechanisms + + 41 to 63 Feature bits reserved for future extensions + +For example, feature bit 0 for a network device (i.e. Subsystem +Device ID 1) indicates that the device supports checksumming of +packets. + +The feature bits are negotiated: the device lists all the +features it understands in the Device Features field, and the +guest writes the subset that it understands into the Guest +Features field. The only way to renegotiate is to reset the +device. + +In particular, new fields in the device configuration header are +indicated by offering a feature bit, so the guest can check +before accessing that part of the configuration space. + +This allows for forwards and backwards compatibility: if the +device is enhanced with a new feature bit, older guests will not +write that feature bit back to the Guest Features field and it +can go into backwards compatibility mode. Similarly, if a guest +is enhanced with a feature that the device doesn't support, it +will not see that feature bit in the Device Features field and +can go into backwards compatibility mode (or, for poor +implementations, set the FAILED Device Status bit). + +Access to feature bits 32 to 63 is enabled by Guest by setting +feature bit 31. If this bit is unset, Device must assume that all +feature bits > 31 are unset. + + Configuration/Queue Vectors + +When MSI-X capability is present and enabled in the device +(through standard PCI configuration space) 4 bytes at byte offset +20 are used to map configuration change and queue interrupts to +MSI-X vectors. In this case, the ISR Status field is unused, and +device specific configuration starts at byte offset 24 in virtio +header structure. When MSI-X capability is not enabled, device +specific configuration starts at byte offset 20 in virtio header. + +Writing a valid MSI-X Table entry number, 0 to 0x7FF, to one of +Configuration/Queue Vector registers, maps interrupts triggered +by the configuration change/selected queue events respectively to +the corresponding MSI-X vector. To disable interrupts for a +specific event type, unmap it by writing a special NO_VECTOR +value: + +/* Vector value used to disable MSI for queue */ + +#define VIRTIO_MSI_NO_VECTOR 0xffff + +Reading these registers returns vector mapped to a given event, +or NO_VECTOR if unmapped. All queue and configuration change +events are unmapped by default. + +Note that mapping an event to vector might require allocating +internal device resources, and might fail. Devices report such +failures by returning the NO_VECTOR value when the relevant +Vector field is read. After mapping an event to vector, the +driver must verify success by reading the Vector field value: on +success, the previously written value is returned, and on +failure, NO_VECTOR is returned. If a mapping failure is detected, +the driver can retry mapping with fewervectors, or disable MSI-X. + + Virtqueue Configuration + +As a device can have zero or more virtqueues for bulk data +transport (for example, the network driver has two), the driver +needs to configure them as part of the device-specific +configuration. + +This is done as follows, for each virtqueue a device has: + + Write the virtqueue index (first queue is 0) to the Queue + Select field. + + Read the virtqueue size from the Queue Size field, which is + always a power of 2. This controls how big the virtqueue is + (see below). If this field is 0, the virtqueue does not exist. + + Allocate and zero virtqueue in contiguous physical memory, on a + 4096 byte alignment. Write the physical address, divided by + 4096 to the Queue Address field.[footnote: +The 4096 is based on the x86 page size, but it's also large +enough to ensure that the separate parts of the virtqueue are on +separate cache lines. +] + + Optionally, if MSI-X capability is present and enabled on the + device, select a vector to use to request interrupts triggered + by virtqueue events. Write the MSI-X Table entry number + corresponding to this vector in Queue Vector field. Read the + Queue Vector field: on success, previously written value is + returned; on failure, NO_VECTOR value is returned. + +The Queue Size field controls the total number of bytes required +for the virtqueue according to the following formula: + +#define ALIGN(x) (((x) + 4095) & ~4095) + +static inline unsigned vring_size(unsigned int qsz) + +{ + + return ALIGN(sizeof(struct vring_desc)*qsz + sizeof(u16)*(2 ++ qsz)) + + + ALIGN(sizeof(struct vring_used_elem)*qsz); + +} + +This currently wastes some space with padding, but also allows +future extensions. The virtqueue layout structure looks like this +(qsz is the Queue Size field, which is a variable, so this code +won't compile): + +struct vring { + + /* The actual descriptors (16 bytes each) */ + + struct vring_desc desc[qsz]; + + + + /* A ring of available descriptor heads with free-running +index. */ + + struct vring_avail avail; + + + + // Padding to the next 4096 boundary. + + char pad[]; + + + + // A ring of used descriptor heads with free-running index. + + struct vring_used used; + +}; + + A Note on Virtqueue Endianness + +Note that the endian of these fields and everything else in the +virtqueue is the native endian of the guest, not little-endian as +PCI normally is. This makes for simpler guest code, and it is +assumed that the host already has to be deeply aware of the guest +endian so such an “endian-aware” device is not a significant +issue. + + Descriptor Table + +The descriptor table refers to the buffers the guest is using for +the device. The addresses are physical addresses, and the buffers +can be chained via the next field. Each descriptor describes a +buffer which is read-only or write-only, but a chain of +descriptors can contain both read-only and write-only buffers. + +No descriptor chain may be more than 2^32 bytes long in total.struct vring_desc { + + /* Address (guest-physical). */ + + u64 addr; + + /* Length. */ + + u32 len; + +/* This marks a buffer as continuing via the next field. */ + +#define VRING_DESC_F_NEXT 1 + +/* This marks a buffer as write-only (otherwise read-only). */ + +#define VRING_DESC_F_WRITE 2 + +/* This means the buffer contains a list of buffer descriptors. +*/ + +#define VRING_DESC_F_INDIRECT 4 + + /* The flags as indicated above. */ + + u16 flags; + + /* Next field if flags & NEXT */ + + u16 next; + +}; + +The number of descriptors in the table is specified by the Queue +Size field for this virtqueue. + + <sub:Indirect-Descriptors>Indirect Descriptors + +Some devices benefit by concurrently dispatching a large number +of large requests. The VIRTIO_RING_F_INDIRECT_DESC feature can be +used to allow this (see [cha:Reserved-Feature-Bits]). To increase +ring capacity it is possible to store a table of indirect +descriptors anywhere in memory, and insert a descriptor in main +virtqueue (with flags&INDIRECT on) that refers to memory buffer +containing this indirect descriptor table; fields addr and len +refer to the indirect table address and length in bytes, +respectively. The indirect table layout structure looks like this +(len is the length of the descriptor that refers to this table, +which is a variable, so this code won't compile): + +struct indirect_descriptor_table { + + /* The actual descriptors (16 bytes each) */ + + struct vring_desc desc[len / 16]; + +}; + +The first indirect descriptor is located at start of the indirect +descriptor table (index 0), additional indirect descriptors are +chained by next field. An indirect descriptor without next field +(with flags&NEXT off) signals the end of the indirect descriptor +table, and transfers control back to the main virtqueue. An +indirect descriptor can not refer to another indirect descriptor +table (flags&INDIRECT must be off). A single indirect descriptor +table can include both read-only and write-only descriptors; +write-only flag (flags&WRITE) in the descriptor that refers to it +is ignored. + + Available Ring + +The available ring refers to what descriptors we are offering the +device: it refers to the head of a descriptor chain. The “flags” +field is currently 0 or 1: 1 indicating that we do not need an +interrupt when the device consumes a descriptor from the +available ring. Alternatively, the guest can ask the device to +delay interrupts until an entry with an index specified by the “ +used_event” field is written in the used ring (equivalently, +until the idx field in the used ring will reach the value +used_event + 1). The method employed by the device is controlled +by the VIRTIO_RING_F_EVENT_IDX feature bit (see [cha:Reserved-Feature-Bits] +). This interrupt suppression is merely an optimization; it may +not suppress interrupts entirely. + +The “idx” field indicates where we would put the next descriptor +entry (modulo the ring size). This starts at 0, and increases. + +struct vring_avail { + +#define VRING_AVAIL_F_NO_INTERRUPT 1 + + u16 flags; + + u16 idx; + + u16 ring[qsz]; /* qsz is the Queue Size field read from device +*/ + + u16 used_event; + +}; + + Used Ring + +The used ring is where the device returns buffers once it is done +with them. The flags field can be used by the device to hint that +no notification is necessary when the guest adds to the available +ring. Alternatively, the “avail_event” field can be used by the +device to hint that no notification is necessary until an entry +with an index specified by the “avail_event” is written in the +available ring (equivalently, until the idx field in the +available ring will reach the value avail_event + 1). The method +employed by the device is controlled by the guest through the +VIRTIO_RING_F_EVENT_IDX feature bit (see [cha:Reserved-Feature-Bits] +). [footnote: +These fields are kept here because this is the only part of the +virtqueue written by the device +]. + +Each entry in the ring is a pair: the head entry of the +descriptor chain describing the buffer (this matches an entry +placed in the available ring by the guest earlier), and the total +of bytes written into the buffer. The latter is extremely useful +for guests using untrusted buffers: if you do not know exactly +how much has been written by the device, you usually have to zero +the buffer to ensure no data leakage occurs. + +/* u32 is used here for ids for padding reasons. */ + +struct vring_used_elem { + + /* Index of start of used descriptor chain. */ + + u32 id; + + /* Total length of the descriptor chain which was used +(written to) */ + + u32 len; + +}; + + + +struct vring_used { + +#define VRING_USED_F_NO_NOTIFY 1 + + u16 flags; + + u16 idx; + + struct vring_used_elem ring[qsz]; + + u16 avail_event; + +}; + + Helpers for Managing Virtqueues + +The Linux Kernel Source code contains the definitions above and +helper routines in a more usable form, in +include/linux/virtio_ring.h. This was explicitly licensed by IBM +and Red Hat under the (3-clause) BSD license so that it can be +freely used by all other projects, and is reproduced (with slight +variation to remove Linux assumptions) in Appendix A. + + Device Operation + +There are two parts to device operation: supplying new buffers to +the device, and processing used buffers from the device. As an +example, the virtio network device has two virtqueues: the +transmit virtqueue and the receive virtqueue. The driver adds +outgoing (read-only) packets to the transmit virtqueue, and then +frees them after they are used. Similarly, incoming (write-only) +buffers are added to the receive virtqueue, and processed after +they are used. + + Supplying Buffers to The Device + +Actual transfer of buffers from the guest OS to the device +operates as follows: + + Place the buffer(s) into free descriptor(s). + + If there are no free descriptors, the guest may choose to + notify the device even if notifications are suppressed (to + reduce latency).[footnote: +The Linux drivers do this only for read-only buffers: for +write-only buffers, it is assumed that the driver is merely +trying to keep the receive buffer ring full, and no notification +of this expected condition is necessary. +] + + Place the id of the buffer in the next ring entry of the + available ring. + + The steps (1) and (2) may be performed repeatedly if batching + is possible. + + A memory barrier should be executed to ensure the device sees + the updated descriptor table and available ring before the next + step. + + The available “idx” field should be increased by the number of + entries added to the available ring. + + A memory barrier should be executed to ensure that we update + the idx field before checking for notification suppression. + + If notifications are not suppressed, the device should be + notified of the new buffers. + +Note that the above code does not take precautions against the +available ring buffer wrapping around: this is not possible since +the ring buffer is the same size as the descriptor table, so step +(1) will prevent such a condition. + +In addition, the maximum queue size is 32768 (it must be a power +of 2 which fits in 16 bits), so the 16-bit “idx” value can always +distinguish between a full and empty buffer. + +Here is a description of each stage in more detail. + + Placing Buffers Into The Descriptor Table + +A buffer consists of zero or more read-only physically-contiguous +elements followed by zero or more physically-contiguous +write-only elements (it must have at least one element). This +algorithm maps it into the descriptor table: + + for each buffer element, b: + + Get the next free descriptor table entry, d + + Set d.addr to the physical address of the start of b + + Set d.len to the length of b. + + If b is write-only, set d.flags to VRING_DESC_F_WRITE, + otherwise 0. + + If there is a buffer element after this: + + Set d.next to the index of the next free descriptor element. + + Set the VRING_DESC_F_NEXT bit in d.flags. + +In practice, the d.next fields are usually used to chain free +descriptors, and a separate count kept to check there are enough +free descriptors before beginning the mappings. + + Updating The Available Ring + +The head of the buffer we mapped is the first d in the algorithm +above. A naive implementation would do the following: + +avail->ring[avail->idx % qsz] = head; + +However, in general we can add many descriptors before we update +the “idx” field (at which point they become visible to the +device), so we keep a counter of how many we've added: + +avail->ring[(avail->idx + added++) % qsz] = head; + + Updating The Index Field + +Once the idx field of the virtqueue is updated, the device will +be able to access the descriptor entries we've created and the +memory they refer to. This is why a memory barrier is generally +used before the idx update, to ensure it sees the most up-to-date +copy. + +The idx field always increments, and we let it wrap naturally at +65536: + +avail->idx += added; + + <sub:Notifying-The-Device>Notifying The Device + +Device notification occurs by writing the 16-bit virtqueue index +of this virtqueue to the Queue Notify field of the virtio header +in the first I/O region of the PCI device. This can be expensive, +however, so the device can suppress such notifications if it +doesn't need them. We have to be careful to expose the new idx +value before checking the suppression flag: it's OK to notify +gratuitously, but not to omit a required notification. So again, +we use a memory barrier here before reading the flags or the +avail_event field. + +If the VIRTIO_F_RING_EVENT_IDX feature is not negotiated, and if +the VRING_USED_F_NOTIFY flag is not set, we go ahead and write to +the PCI configuration space. + +If the VIRTIO_F_RING_EVENT_IDX feature is negotiated, we read the +avail_event field in the available ring structure. If the +available index crossed_the avail_event field value since the +last notification, we go ahead and write to the PCI configuration +space. The avail_event field wraps naturally at 65536 as well: + +(u16)(new_idx - avail_event - 1) < (u16)(new_idx - old_idx) + + <sub:Receiving-Used-Buffers>Receiving Used Buffers From The + Device + +Once the device has used a buffer (read from or written to it, or +parts of both, depending on the nature of the virtqueue and the +device), it sends an interrupt, following an algorithm very +similar to the algorithm used for the driver to send the device a +buffer: + + Write the head descriptor number to the next field in the used + ring. + + Update the used ring idx. + + Determine whether an interrupt is necessary: + + If the VIRTIO_F_RING_EVENT_IDX feature is not negotiated: check + if f the VRING_AVAIL_F_NO_INTERRUPT flag is not set in avail- + >flags + + If the VIRTIO_F_RING_EVENT_IDX feature is negotiated: check + whether the used index crossed the used_event field value + since the last update. The used_event field wraps naturally + at 65536 as well:(u16)(new_idx - used_event - 1) < (u16)(new_idx - old_idx) + + If an interrupt is necessary: + + If MSI-X capability is disabled: + + Set the lower bit of the ISR Status field for the device. + + Send the appropriate PCI interrupt for the device. + + If MSI-X capability is enabled: + + Request the appropriate MSI-X interrupt message for the + device, Queue Vector field sets the MSI-X Table entry + number. + + If Queue Vector field value is NO_VECTOR, no interrupt + message is requested for this event. + +The guest interrupt handler should: + + If MSI-X capability is disabled: read the ISR Status field, + which will reset it to zero. If the lower bit is zero, the + interrupt was not for this device. Otherwise, the guest driver + should look through the used rings of each virtqueue for the + device, to see if any progress has been made by the device + which requires servicing. + + If MSI-X capability is enabled: look through the used rings of + each virtqueue mapped to the specific MSI-X vector for the + device, to see if any progress has been made by the device + which requires servicing. + +For each ring, guest should then disable interrupts by writing +VRING_AVAIL_F_NO_INTERRUPT flag in avail structure, if required. +It can then process used ring entries finally enabling interrupts +by clearing the VRING_AVAIL_F_NO_INTERRUPT flag or updating the +EVENT_IDX field in the available structure, Guest should then +execute a memory barrier, and then recheck the ring empty +condition. This is necessary to handle the case where, after the +last check and before enabling interrupts, an interrupt has been +suppressed by the device: + +vring_disable_interrupts(vq); + +for (;;) { + + if (vq->last_seen_used != vring->used.idx) { + + vring_enable_interrupts(vq); + + mb(); + + if (vq->last_seen_used != vring->used.idx) + + break; + + } + + struct vring_used_elem *e = +vring.used->ring[vq->last_seen_used%vsz]; + + process_buffer(e); + + vq->last_seen_used++; + +} + + Dealing With Configuration Changes + +Some virtio PCI devices can change the device configuration +state, as reflected in the virtio header in the PCI configuration +space. In this case: + + If MSI-X capability is disabled: an interrupt is delivered and + the second highest bit is set in the ISR Status field to + indicate that the driver should re-examine the configuration + space.Note that a single interrupt can indicate both that one + or more virtqueue has been used and that the configuration + space has changed: even if the config bit is set, virtqueues + must be scanned. + + If MSI-X capability is enabled: an interrupt message is + requested. The Configuration Vector field sets the MSI-X Table + entry number to use. If Configuration Vector field value is + NO_VECTOR, no interrupt message is requested for this event. + +Creating New Device Types + +Various considerations are necessary when creating a new device +type: + + How Many Virtqueues? + +It is possible that a very simple device will operate entirely +through its configuration space, but most will need at least one +virtqueue in which it will place requests. A device with both +input and output (eg. console and network devices described here) +need two queues: one which the driver fills with buffers to +receive input, and one which the driver places buffers to +transmit output. + + What Configuration Space Layout? + +Configuration space is generally used for rarely-changing or +initialization-time parameters. But it is a limited resource, so +it might be better to use a virtqueue to update configuration +information (the network device does this for filtering, +otherwise the table in the config space could potentially be very +large). + +Note that this space is generally the guest's native endian, +rather than PCI's little-endian. + + What Device Number? + +Currently device numbers are assigned quite freely: a simple +request mail to the author of this document or the Linux +virtualization mailing list[footnote: + +https://lists.linux-foundation.org/mailman/listinfo/virtualization +] will be sufficient to secure a unique one. + +Meanwhile for experimental drivers, use 65535 and work backwards. + + How many MSI-X vectors? + +Using the optional MSI-X capability devices can speed up +interrupt processing by removing the need to read ISR Status +register by guest driver (which might be an expensive operation), +reducing interrupt sharing between devices and queues within the +device, and handling interrupts from multiple CPUs. However, some +systems impose a limit (which might be as low as 256) on the +total number of MSI-X vectors that can be allocated to all +devices. Devices and/or device drivers should take this into +account, limiting the number of vectors used unless the device is +expected to cause a high volume of interrupts. Devices can +control the number of vectors used by limiting the MSI-X Table +Size or not presenting MSI-X capability in PCI configuration +space. Drivers can control this by mapping events to as small +number of vectors as possible, or disabling MSI-X capability +altogether. + + Message Framing + +The descriptors used for a buffer should not effect the semantics +of the message, except for the total length of the buffer. For +example, a network buffer consists of a 10 byte header followed +by the network packet. Whether this is presented in the ring +descriptor chain as (say) a 10 byte buffer and a 1514 byte +buffer, or a single 1524 byte buffer, or even three buffers, +should have no effect. + +In particular, no implementation should use the descriptor +boundaries to determine the size of any header in a request.[footnote: +The current qemu device implementations mistakenly insist that +the first descriptor cover the header in these cases exactly, so +a cautious driver should arrange it so. +] + + Device Improvements + +Any change to configuration space, or new virtqueues, or +behavioural changes, should be indicated by negotiation of a new +feature bit. This establishes clarity[footnote: +Even if it does mean documenting design or implementation +mistakes! +] and avoids future expansion problems. + +Clusters of functionality which are always implemented together +can use a single bit, but if one feature makes sense without the +others they should not be gratuitously grouped together to +conserve feature bits. We can always extend the spec when the +first person needs more than 24 feature bits for their device. + +[LaTeX Command: printnomenclature] + +Appendix A: virtio_ring.h + +#ifndef VIRTIO_RING_H + +#define VIRTIO_RING_H + +/* An interface for efficient virtio implementation. + + * + + * This header is BSD licensed so anyone can use the definitions + + * to implement compatible drivers/servers. + + * + + * Copyright 2007, 2009, IBM Corporation + + * Copyright 2011, Red Hat, Inc + + * All rights reserved. + + * + + * Redistribution and use in source and binary forms, with or +without + + * modification, are permitted provided that the following +conditions + + * are met: + + * 1. Redistributions of source code must retain the above +copyright + + * notice, this list of conditions and the following +disclaimer. + + * 2. Redistributions in binary form must reproduce the above +copyright + + * notice, this list of conditions and the following +disclaimer in the + + * documentation and/or other materials provided with the +distribution. + + * 3. Neither the name of IBM nor the names of its contributors + + * may be used to endorse or promote products derived from +this software + + * without specific prior written permission. + + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND +CONTRIBUTORS ``AS IS'' AND + + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED +TO, THE + + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A +PARTICULAR PURPOSE + + * ARE DISCLAIMED. IN NO EVENT SHALL IBM OR CONTRIBUTORS BE +LIABLE + + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR +CONSEQUENTIAL + + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF +SUBSTITUTE GOODS + + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS +INTERRUPTION) + + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN +CONTRACT, STRICT + + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING +IN ANY WAY + + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE +POSSIBILITY OF + + * SUCH DAMAGE. + + */ + + + +/* This marks a buffer as continuing via the next field. */ + +#define VRING_DESC_F_NEXT 1 + +/* This marks a buffer as write-only (otherwise read-only). */ + +#define VRING_DESC_F_WRITE 2 + + + +/* The Host uses this in used->flags to advise the Guest: don't +kick me + + * when you add a buffer. It's unreliable, so it's simply an + + * optimization. Guest will still kick if it's out of buffers. +*/ + +#define VRING_USED_F_NO_NOTIFY 1 + +/* The Guest uses this in avail->flags to advise the Host: don't + + * interrupt me when you consume a buffer. It's unreliable, so +it's + + * simply an optimization. */ + +#define VRING_AVAIL_F_NO_INTERRUPT 1 + + + +/* Virtio ring descriptors: 16 bytes. + + * These can chain together via "next". */ + +struct vring_desc { + + /* Address (guest-physical). */ + + uint64_t addr; + + /* Length. */ + + uint32_t len; + + /* The flags as indicated above. */ + + uint16_t flags; + + /* We chain unused descriptors via this, too */ + + uint16_t next; + +}; + + + +struct vring_avail { + + uint16_t flags; + + uint16_t idx; + + uint16_t ring[]; + + uint16_t used_event; + +}; + + + +/* u32 is used here for ids for padding reasons. */ + +struct vring_used_elem { + + /* Index of start of used descriptor chain. */ + + uint32_t id; + + /* Total length of the descriptor chain which was written +to. */ + + uint32_t len; + +}; + + + +struct vring_used { + + uint16_t flags; + + uint16_t idx; + + struct vring_used_elem ring[]; + + uint16_t avail_event; + +}; + + + +struct vring { + + unsigned int num; + + + + struct vring_desc *desc; + + struct vring_avail *avail; + + struct vring_used *used; + +}; + + + +/* The standard layout for the ring is a continuous chunk of +memory which + + * looks like this. We assume num is a power of 2. + + * + + * struct vring { + + * // The actual descriptors (16 bytes each) + + * struct vring_desc desc[num]; + + * + + * // A ring of available descriptor heads with free-running +index. + + * __u16 avail_flags; + + * __u16 avail_idx; + + * __u16 available[num]; + + * + + * // Padding to the next align boundary. + + * char pad[]; + + * + + * // A ring of used descriptor heads with free-running +index. + + * __u16 used_flags; + + * __u16 EVENT_IDX; + + * struct vring_used_elem used[num]; + + * }; + + * Note: for virtio PCI, align is 4096. + + */ + +static inline void vring_init(struct vring *vr, unsigned int num, +void *p, + + unsigned long align) + +{ + + vr->num = num; + + vr->desc = p; + + vr->avail = p + num*sizeof(struct vring_desc); + + vr->used = (void *)(((unsigned long)&vr->avail->ring[num] + + + align-1) + + & ~(align - 1)); + +} + + + +static inline unsigned vring_size(unsigned int num, unsigned long +align) + +{ + + return ((sizeof(struct vring_desc)*num + +sizeof(uint16_t)*(2+num) + + + align - 1) & ~(align - 1)) + + + sizeof(uint16_t)*3 + sizeof(struct +vring_used_elem)*num; + +} + + + +static inline int vring_need_event(uint16_t event_idx, uint16_t +new_idx, uint16_t old_idx) + +{ + + return (uint16_t)(new_idx - event_idx - 1) < +(uint16_t)(new_idx - old_idx); + +} + +#endif /* VIRTIO_RING_H */ + +<cha:Reserved-Feature-Bits>Appendix B: Reserved Feature Bits + +Currently there are five device-independent feature bits defined: + + VIRTIO_F_NOTIFY_ON_EMPTY (24) Negotiating this feature + indicates that the driver wants an interrupt if the device runs + out of available descriptors on a virtqueue, even though + interrupts are suppressed using the VRING_AVAIL_F_NO_INTERRUPT + flag or the used_event field. An example of this is the + networking driver: it doesn't need to know every time a packet + is transmitted, but it does need to free the transmitted + packets a finite time after they are transmitted. It can avoid + using a timer if the device interrupts it when all the packets + are transmitted. + + VIRTIO_F_RING_INDIRECT_DESC (28) Negotiating this feature + indicates that the driver can use descriptors with the + VRING_DESC_F_INDIRECT flag set, as described in [sub:Indirect-Descriptors] + . + + VIRTIO_F_RING_EVENT_IDX(29) This feature enables the used_event + and the avail_event fields. If set, it indicates that the + device should ignore the flags field in the available ring + structure. Instead, the used_event field in this structure is + used by guest to suppress device interrupts. Further, the + driver should ignore the flags field in the used ring + structure. Instead, the avail_event field in this structure is + used by the device to suppress notifications. If unset, the + driver should ignore the used_event field; the device should + ignore the avail_event field; the flags field is used + + VIRTIO_F_BAD_FEATURE(30) This feature should never be + negotiated by the guest; doing so is an indication that the + guest is faulty[footnote: +An experimental virtio PCI driver contained in Linux version +2.6.25 had this problem, and this feature bit can be used to +detect it. +] + + VIRTIO_F_FEATURES_HIGH(31) This feature indicates that the + device supports feature bits 32:63. If unset, feature bits + 32:63 are unset. + +Appendix C: Network Device + +The virtio network device is a virtual ethernet card, and is the +most complex of the devices supported so far by virtio. It has +enhanced rapidly and demonstrates clearly how support for new +features should be added to an existing device. Empty buffers are +placed in one virtqueue for receiving packets, and outgoing +packets are enqueued into another for transmission in that order. +A third command queue is used to control advanced filtering +features. + + Configuration + + Subsystem Device ID 1 + + Virtqueues 0:receiveq. 1:transmitq. 2:controlq[footnote: +Only if VIRTIO_NET_F_CTRL_VQ set +] + + Feature bits + + VIRTIO_NET_F_CSUM (0) Device handles packets with partial + checksum + + VIRTIO_NET_F_GUEST_CSUM (1) Guest handles packets with partial + checksum + + VIRTIO_NET_F_MAC (5) Device has given MAC address. + + VIRTIO_NET_F_GSO (6) (Deprecated) device handles packets with + any GSO type.[footnote: +It was supposed to indicate segmentation offload support, but +upon further investigation it became clear that multiple bits +were required. +] + + VIRTIO_NET_F_GUEST_TSO4 (7) Guest can receive TSOv4. + + VIRTIO_NET_F_GUEST_TSO6 (8) Guest can receive TSOv6. + + VIRTIO_NET_F_GUEST_ECN (9) Guest can receive TSO with ECN. + + VIRTIO_NET_F_GUEST_UFO (10) Guest can receive UFO. + + VIRTIO_NET_F_HOST_TSO4 (11) Device can receive TSOv4. + + VIRTIO_NET_F_HOST_TSO6 (12) Device can receive TSOv6. + + VIRTIO_NET_F_HOST_ECN (13) Device can receive TSO with ECN. + + VIRTIO_NET_F_HOST_UFO (14) Device can receive UFO. + + VIRTIO_NET_F_MRG_RXBUF (15) Guest can merge receive buffers. + + VIRTIO_NET_F_STATUS (16) Configuration status field is + available. + + VIRTIO_NET_F_CTRL_VQ (17) Control channel is available. + + VIRTIO_NET_F_CTRL_RX (18) Control channel RX mode support. + + VIRTIO_NET_F_CTRL_VLAN (19) Control channel VLAN filtering. + + Device configuration layout Two configuration fields are + currently defined. The mac address field always exists (though + is only valid if VIRTIO_NET_F_MAC is set), and the status field + only exists if VIRTIO_NET_F_STATUS is set. Only one bit is + currently defined for the status field: VIRTIO_NET_S_LINK_UP. #define VIRTIO_NET_S_LINK_UP 1 + + + +struct virtio_net_config { + + u8 mac[6]; + + u16 status; + +}; + + Device Initialization + + The initialization routine should identify the receive and + transmission virtqueues. + + If the VIRTIO_NET_F_MAC feature bit is set, the configuration + space “mac” entry indicates the “physical” address of the the + network card, otherwise a private MAC address should be + assigned. All guests are expected to negotiate this feature if + it is set. + + If the VIRTIO_NET_F_CTRL_VQ feature bit is negotiated, identify + the control virtqueue. + + If the VIRTIO_NET_F_STATUS feature bit is negotiated, the link + status can be read from the bottom bit of the “status” config + field. Otherwise, the link should be assumed active. + + The receive virtqueue should be filled with receive buffers. + This is described in detail below in “Setting Up Receive + Buffers”. + + A driver can indicate that it will generate checksumless + packets by negotating the VIRTIO_NET_F_CSUM feature. This “ + checksum offload” is a common feature on modern network cards. + + If that feature is negotiated, a driver can use TCP or UDP + segmentation offload by negotiating the VIRTIO_NET_F_HOST_TSO4 + (IPv4 TCP), VIRTIO_NET_F_HOST_TSO6 (IPv6 TCP) and + VIRTIO_NET_F_HOST_UFO (UDP fragmentation) features. It should + not send TCP packets requiring segmentation offload which have + the Explicit Congestion Notification bit set, unless the + VIRTIO_NET_F_HOST_ECN feature is negotiated.[footnote: +This is a common restriction in real, older network cards. +] + + The converse features are also available: a driver can save the + virtual device some work by negotiating these features.[footnote: +For example, a network packet transported between two guests on +the same system may not require checksumming at all, nor +segmentation, if both guests are amenable. +] The VIRTIO_NET_F_GUEST_CSUM feature indicates that partially + checksummed packets can be received, and if it can do that then + the VIRTIO_NET_F_GUEST_TSO4, VIRTIO_NET_F_GUEST_TSO6, + VIRTIO_NET_F_GUEST_UFO and VIRTIO_NET_F_GUEST_ECN are the input + equivalents of the features described above. See “Receiving + Packets” below. + + Device Operation + +Packets are transmitted by placing them in the transmitq, and +buffers for incoming packets are placed in the receiveq. In each +case, the packet itself is preceeded by a header: + +struct virtio_net_hdr { + +#define VIRTIO_NET_HDR_F_NEEDS_CSUM 1 + + u8 flags; + +#define VIRTIO_NET_HDR_GSO_NONE 0 + +#define VIRTIO_NET_HDR_GSO_TCPV4 1 + +#define VIRTIO_NET_HDR_GSO_UDP 3 + +#define VIRTIO_NET_HDR_GSO_TCPV6 4 + +#define VIRTIO_NET_HDR_GSO_ECN 0x80 + + u8 gso_type; + + u16 hdr_len; + + u16 gso_size; + + u16 csum_start; + + u16 csum_offset; + +/* Only if VIRTIO_NET_F_MRG_RXBUF: */ + + u16 num_buffers + +}; + +The controlq is used to control device features such as +filtering. + + Packet Transmission + +Transmitting a single packet is simple, but varies depending on +the different features the driver negotiated. + + If the driver negotiated VIRTIO_NET_F_CSUM, and the packet has + not been fully checksummed, then the virtio_net_hdr's fields + are set as follows. Otherwise, the packet must be fully + checksummed, and flags is zero. + + flags has the VIRTIO_NET_HDR_F_NEEDS_CSUM set, + + <ite:csum_start-is-set>csum_start is set to the offset within + the packet to begin checksumming, and + + csum_offset indicates how many bytes after the csum_start the + new (16 bit ones' complement) checksum should be placed.[footnote: +For example, consider a partially checksummed TCP (IPv4) packet. +It will have a 14 byte ethernet header and 20 byte IP header +followed by the TCP header (with the TCP checksum field 16 bytes +into that header). csum_start will be 14+20 = 34 (the TCP +checksum includes the header), and csum_offset will be 16. The +value in the TCP checksum field will be the sum of the TCP pseudo +header, so that replacing it by the ones' complement checksum of +the TCP header and body will give the correct result. +] + + <enu:If-the-driver>If the driver negotiated + VIRTIO_NET_F_HOST_TSO4, TSO6 or UFO, and the packet requires + TCP segmentation or UDP fragmentation, then the “gso_type” + field is set to VIRTIO_NET_HDR_GSO_TCPV4, TCPV6 or UDP. + (Otherwise, it is set to VIRTIO_NET_HDR_GSO_NONE). In this + case, packets larger than 1514 bytes can be transmitted: the + metadata indicates how to replicate the packet header to cut it + into smaller packets. The other gso fields are set: + + hdr_len is a hint to the device as to how much of the header + needs to be kept to copy into each packet, usually set to the + length of the headers, including the transport header.[footnote: +Due to various bugs in implementations, this field is not useful +as a guarantee of the transport header size. +] + + gso_size is the size of the packet beyond that header (ie. + MSS). + + If the driver negotiated the VIRTIO_NET_F_HOST_ECN feature, the + VIRTIO_NET_HDR_GSO_ECN bit may be set in “gso_type” as well, + indicating that the TCP packet has the ECN bit set.[footnote: +This case is not handled by some older hardware, so is called out +specifically in the protocol. +] + + If the driver negotiated the VIRTIO_NET_F_MRG_RXBUF feature, + the num_buffers field is set to zero. + + The header and packet are added as one output buffer to the + transmitq, and the device is notified of the new entry (see [sub:Notifying-The-Device] + ).[footnote: +Note that the header will be two bytes longer for the +VIRTIO_NET_F_MRG_RXBUF case. +] + + Packet Transmission Interrupt + +Often a driver will suppress transmission interrupts using the +VRING_AVAIL_F_NO_INTERRUPT flag (see [sub:Receiving-Used-Buffers] +) and check for used packets in the transmit path of following +packets. However, it will still receive interrupts if the +VIRTIO_F_NOTIFY_ON_EMPTY feature is negotiated, indicating that +the transmission queue is completely emptied. + +The normal behavior in this interrupt handler is to retrieve and +new descriptors from the used ring and free the corresponding +headers and packets. + + Setting Up Receive Buffers + +It is generally a good idea to keep the receive virtqueue as +fully populated as possible: if it runs out, network performance +will suffer. + +If the VIRTIO_NET_F_GUEST_TSO4, VIRTIO_NET_F_GUEST_TSO6 or +VIRTIO_NET_F_GUEST_UFO features are used, the Guest will need to +accept packets of up to 65550 bytes long (the maximum size of a +TCP or UDP packet, plus the 14 byte ethernet header), otherwise +1514 bytes. So unless VIRTIO_NET_F_MRG_RXBUF is negotiated, every +buffer in the receive queue needs to be at least this length [footnote: +Obviously each one can be split across multiple descriptor +elements. +]. + +If VIRTIO_NET_F_MRG_RXBUF is negotiated, each buffer must be at +least the size of the struct virtio_net_hdr. + + Packet Receive Interrupt + +When a packet is copied into a buffer in the receiveq, the +optimal path is to disable further interrupts for the receiveq +(see [sub:Receiving-Used-Buffers]) and process packets until no +more are found, then re-enable them. + +Processing packet involves: + + If the driver negotiated the VIRTIO_NET_F_MRG_RXBUF feature, + then the “num_buffers” field indicates how many descriptors + this packet is spread over (including this one). This allows + receipt of large packets without having to allocate large + buffers. In this case, there will be at least “num_buffers” in + the used ring, and they should be chained together to form a + single packet. The other buffers will not begin with a struct + virtio_net_hdr. + + If the VIRTIO_NET_F_MRG_RXBUF feature was not negotiated, or + the “num_buffers” field is one, then the entire packet will be + contained within this buffer, immediately following the struct + virtio_net_hdr. + + If the VIRTIO_NET_F_GUEST_CSUM feature was negotiated, the + VIRTIO_NET_HDR_F_NEEDS_CSUM bit in the “flags” field may be + set: if so, the checksum on the packet is incomplete and the “ + csum_start” and “csum_offset” fields indicate how to calculate + it (see [ite:csum_start-is-set]). + + If the VIRTIO_NET_F_GUEST_TSO4, TSO6 or UFO options were + negotiated, then the “gso_type” may be something other than + VIRTIO_NET_HDR_GSO_NONE, and the “gso_size” field indicates the + desired MSS (see [enu:If-the-driver]).Control Virtqueue + +The driver uses the control virtqueue (if VIRTIO_NET_F_VTRL_VQ is +negotiated) to send commands to manipulate various features of +the device which would not easily map into the configuration +space. + +All commands are of the following form: + +struct virtio_net_ctrl { + + u8 class; + + u8 command; + + u8 command-specific-data[]; + + u8 ack; + +}; + + + +/* ack values */ + +#define VIRTIO_NET_OK 0 + +#define VIRTIO_NET_ERR 1 + +The class, command and command-specific-data are set by the +driver, and the device sets the ack byte. There is little it can +do except issue a diagnostic if the ack byte is not +VIRTIO_NET_OK. + + Packet Receive Filtering + +If the VIRTIO_NET_F_CTRL_RX feature is negotiated, the driver can +send control commands for promiscuous mode, multicast receiving, +and filtering of MAC addresses. + +Note that in general, these commands are best-effort: unwanted +packets may still arrive. + + Setting Promiscuous Mode + +#define VIRTIO_NET_CTRL_RX 0 + + #define VIRTIO_NET_CTRL_RX_PROMISC 0 + + #define VIRTIO_NET_CTRL_RX_ALLMULTI 1 + +The class VIRTIO_NET_CTRL_RX has two commands: +VIRTIO_NET_CTRL_RX_PROMISC turns promiscuous mode on and off, and +VIRTIO_NET_CTRL_RX_ALLMULTI turns all-multicast receive on and +off. The command-specific-data is one byte containing 0 (off) or +1 (on). + + Setting MAC Address Filtering + +struct virtio_net_ctrl_mac { + + u32 entries; + + u8 macs[entries][ETH_ALEN]; + +}; + + + +#define VIRTIO_NET_CTRL_MAC 1 + + #define VIRTIO_NET_CTRL_MAC_TABLE_SET 0 + +The device can filter incoming packets by any number of +destination MAC addresses.[footnote: +Since there are no guarentees, it can use a hash filter +orsilently switch to allmulti or promiscuous mode if it is given +too many addresses. +] This table is set using the class VIRTIO_NET_CTRL_MAC and the +command VIRTIO_NET_CTRL_MAC_TABLE_SET. The command-specific-data +is two variable length tables of 6-byte MAC addresses. The first +table contains unicast addresses, and the second contains +multicast addresses. + + VLAN Filtering + +If the driver negotiates the VIRTION_NET_F_CTRL_VLAN feature, it +can control a VLAN filter table in the device. + +#define VIRTIO_NET_CTRL_VLAN 2 + + #define VIRTIO_NET_CTRL_VLAN_ADD 0 + + #define VIRTIO_NET_CTRL_VLAN_DEL 1 + +Both the VIRTIO_NET_CTRL_VLAN_ADD and VIRTIO_NET_CTRL_VLAN_DEL +command take a 16-bit VLAN id as the command-specific-data. + +Appendix D: Block Device + +The virtio block device is a simple virtual block device (ie. +disk). Read and write requests (and other exotic requests) are +placed in the queue, and serviced (probably out of order) by the +device except where noted. + + Configuration + + Subsystem Device ID 2 + + Virtqueues 0:requestq. + + Feature bits + + VIRTIO_BLK_F_BARRIER (0) Host supports request barriers. + + VIRTIO_BLK_F_SIZE_MAX (1) Maximum size of any single segment is + in “size_max”. + + VIRTIO_BLK_F_SEG_MAX (2) Maximum number of segments in a + request is in “seg_max”. + + VIRTIO_BLK_F_GEOMETRY (4) Disk-style geometry specified in “ + geometry”. + + VIRTIO_BLK_F_RO (5) Device is read-only. + + VIRTIO_BLK_F_BLK_SIZE (6) Block size of disk is in “blk_size”. + + VIRTIO_BLK_F_SCSI (7) Device supports scsi packet commands. + + VIRTIO_BLK_F_FLUSH (9) Cache flush command support. + + + + Device configuration layout The capacity of the device + (expressed in 512-byte sectors) is always present. The + availability of the others all depend on various feature bits + as indicated above. struct virtio_blk_config { + + u64 capacity; + + u32 size_max; + + u32 seg_max; + + struct virtio_blk_geometry { + + u16 cylinders; + + u8 heads; + + u8 sectors; + + } geometry; + + u32 blk_size; + + + +}; + + Device Initialization + + The device size should be read from the “capacity” + configuration field. No requests should be submitted which goes + beyond this limit. + + If the VIRTIO_BLK_F_BLK_SIZE feature is negotiated, the + blk_size field can be read to determine the optimal sector size + for the driver to use. This does not effect the units used in + the protocol (always 512 bytes), but awareness of the correct + value can effect performance. + + If the VIRTIO_BLK_F_RO feature is set by the device, any write + requests will fail. + + + + Device Operation + +The driver queues requests to the virtqueue, and they are used by +the device (not necessarily in order). Each request is of form: + +struct virtio_blk_req { + + + + u32 type; + + u32 ioprio; + + u64 sector; + + char data[][512]; + + u8 status; + +}; + +If the device has VIRTIO_BLK_F_SCSI feature, it can also support +scsi packet command requests, each of these requests is of form:struct virtio_scsi_pc_req { + + u32 type; + + u32 ioprio; + + u64 sector; + + char cmd[]; + + char data[][512]; + +#define SCSI_SENSE_BUFFERSIZE 96 + + u8 sense[SCSI_SENSE_BUFFERSIZE]; + + u32 errors; + + u32 data_len; + + u32 sense_len; + + u32 residual; + + u8 status; + +}; + +The type of the request is either a read (VIRTIO_BLK_T_IN), a +write (VIRTIO_BLK_T_OUT), a scsi packet command +(VIRTIO_BLK_T_SCSI_CMD or VIRTIO_BLK_T_SCSI_CMD_OUT[footnote: +the SCSI_CMD and SCSI_CMD_OUT types are equivalent, the device +does not distinguish between them +]) or a flush (VIRTIO_BLK_T_FLUSH or VIRTIO_BLK_T_FLUSH_OUT[footnote: +the FLUSH and FLUSH_OUT types are equivalent, the device does not +distinguish between them +]). If the device has VIRTIO_BLK_F_BARRIER feature the high bit +(VIRTIO_BLK_T_BARRIER) indicates that this request acts as a +barrier and that all preceeding requests must be complete before +this one, and all following requests must not be started until +this is complete. Note that a barrier does not flush caches in +the underlying backend device in host, and thus does not serve as +data consistency guarantee. Driver must use FLUSH request to +flush the host cache. + +#define VIRTIO_BLK_T_IN 0 + +#define VIRTIO_BLK_T_OUT 1 + +#define VIRTIO_BLK_T_SCSI_CMD 2 + +#define VIRTIO_BLK_T_SCSI_CMD_OUT 3 + +#define VIRTIO_BLK_T_FLUSH 4 + +#define VIRTIO_BLK_T_FLUSH_OUT 5 + +#define VIRTIO_BLK_T_BARRIER 0x80000000 + +The ioprio field is a hint about the relative priorities of +requests to the device: higher numbers indicate more important +requests. + +The sector number indicates the offset (multiplied by 512) where +the read or write is to occur. This field is unused and set to 0 +for scsi packet commands and for flush commands. + +The cmd field is only present for scsi packet command requests, +and indicates the command to perform. This field must reside in a +single, separate read-only buffer; command length can be derived +from the length of this buffer. + +Note that these first three (four for scsi packet commands) +fields are always read-only: the data field is either read-only +or write-only, depending on the request. The size of the read or +write can be derived from the total size of the request buffers. + +The sense field is only present for scsi packet command requests, +and indicates the buffer for scsi sense data. + +The data_len field is only present for scsi packet command +requests, this field is deprecated, and should be ignored by the +driver. Historically, devices copied data length there. + +The sense_len field is only present for scsi packet command +requests and indicates the number of bytes actually written to +the sense buffer. + +The residual field is only present for scsi packet command +requests and indicates the residual size, calculated as data +length - number of bytes actually transferred. + +The final status byte is written by the device: either +VIRTIO_BLK_S_OK for success, VIRTIO_BLK_S_IOERR for host or guest +error or VIRTIO_BLK_S_UNSUPP for a request unsupported by host:#define VIRTIO_BLK_S_OK 0 + +#define VIRTIO_BLK_S_IOERR 1 + +#define VIRTIO_BLK_S_UNSUPP 2 + +Historically, devices assumed that the fields type, ioprio and +sector reside in a single, separate read-only buffer; the fields +errors, data_len, sense_len and residual reside in a single, +separate write-only buffer; the sense field in a separate +write-only buffer of size 96 bytes, by itself; the fields errors, +data_len, sense_len and residual in a single write-only buffer; +and the status field is a separate read-only buffer of size 1 +byte, by itself. + +Appendix E: Console Device + +The virtio console device is a simple device for data input and +output. A device may have one or more ports. Each port has a pair +of input and output virtqueues. Moreover, a device has a pair of +control IO virtqueues. The control virtqueues are used to +communicate information between the device and the driver about +ports being opened and closed on either side of the connection, +indication from the host about whether a particular port is a +console port, adding new ports, port hot-plug/unplug, etc., and +indication from the guest about whether a port or a device was +successfully added, port open/close, etc.. For data IO, one or +more empty buffers are placed in the receive queue for incoming +data and outgoing characters are placed in the transmit queue. + + Configuration + + Subsystem Device ID 3 + + Virtqueues 0:receiveq(port0). 1:transmitq(port0), 2:control + receiveq[footnote: +Ports 2 onwards only if VIRTIO_CONSOLE_F_MULTIPORT is set +], 3:control transmitq, 4:receiveq(port1), 5:transmitq(port1), + ... + + Feature bits + + VIRTIO_CONSOLE_F_SIZE (0) Configuration cols and rows fields + are valid. + + VIRTIO_CONSOLE_F_MULTIPORT(1) Device has support for multiple + ports; configuration fields nr_ports and max_nr_ports are + valid and control virtqueues will be used. + + Device configuration layout The size of the console is supplied + in the configuration space if the VIRTIO_CONSOLE_F_SIZE feature + is set. Furthermore, if the VIRTIO_CONSOLE_F_MULTIPORT feature + is set, the maximum number of ports supported by the device can + be fetched.struct virtio_console_config { + + u16 cols; + + u16 rows; + + + + u32 max_nr_ports; + +}; + + Device Initialization + + If the VIRTIO_CONSOLE_F_SIZE feature is negotiated, the driver + can read the console dimensions from the configuration fields. + + If the VIRTIO_CONSOLE_F_MULTIPORT feature is negotiated, the + driver can spawn multiple ports, not all of which may be + attached to a console. Some could be generic ports. In this + case, the control virtqueues are enabled and according to the + max_nr_ports configuration-space value, the appropriate number + of virtqueues are created. A control message indicating the + driver is ready is sent to the host. The host can then send + control messages for adding new ports to the device. After + creating and initializing each port, a + VIRTIO_CONSOLE_PORT_READY control message is sent to the host + for that port so the host can let us know of any additional + configuration options set for that port. + + The receiveq for each port is populated with one or more + receive buffers. + + Device Operation + + For output, a buffer containing the characters is placed in the + port's transmitq.[footnote: +Because this is high importance and low bandwidth, the current +Linux implementation polls for the buffer to be used, rather than +waiting for an interrupt, simplifying the implementation +significantly. However, for generic serial ports with the +O_NONBLOCK flag set, the polling limitation is relaxed and the +consumed buffers are freed upon the next write or poll call or +when a port is closed or hot-unplugged. +] + + When a buffer is used in the receiveq (signalled by an + interrupt), the contents is the input to the port associated + with the virtqueue for which the notification was received. + + If the driver negotiated the VIRTIO_CONSOLE_F_SIZE feature, a + configuration change interrupt may occur. The updated size can + be read from the configuration fields. + + If the driver negotiated the VIRTIO_CONSOLE_F_MULTIPORT + feature, active ports are announced by the host using the + VIRTIO_CONSOLE_PORT_ADD control message. The same message is + used for port hot-plug as well. + + If the host specified a port `name', a sysfs attribute is + created with the name filled in, so that udev rules can be + written that can create a symlink from the port's name to the + char device for port discovery by applications in the guest. + + Changes to ports' state are effected by control messages. + Appropriate action is taken on the port indicated in the + control message. The layout of the structure of the control + buffer and the events associated are:struct virtio_console_control { + + uint32_t id; /* Port number */ + + uint16_t event; /* The kind of control event */ + + uint16_t value; /* Extra information for the event */ + +}; + + + +/* Some events for the internal messages (control packets) */ + + + +#define VIRTIO_CONSOLE_DEVICE_READY 0 + +#define VIRTIO_CONSOLE_PORT_ADD 1 + +#define VIRTIO_CONSOLE_PORT_REMOVE 2 + +#define VIRTIO_CONSOLE_PORT_READY 3 + +#define VIRTIO_CONSOLE_CONSOLE_PORT 4 + +#define VIRTIO_CONSOLE_RESIZE 5 + +#define VIRTIO_CONSOLE_PORT_OPEN 6 + +#define VIRTIO_CONSOLE_PORT_NAME 7 + +Appendix F: Entropy Device + +The virtio entropy device supplies high-quality randomness for +guest use. + + Configuration + + Subsystem Device ID 4 + + Virtqueues 0:requestq. + + Feature bits None currently defined + + Device configuration layout None currently defined. + + Device Initialization + + The virtqueue is initialized + + Device Operation + +When the driver requires random bytes, it places the descriptor +of one or more buffers in the queue. It will be completely filled +by random data by the device. + +Appendix G: Memory Balloon Device + +The virtio memory balloon device is a primitive device for +managing guest memory: the device asks for a certain amount of +memory, and the guest supplies it (or withdraws it, if the device +has more than it asks for). This allows the guest to adapt to +changes in allowance of underlying physical memory. If the +feature is negotiated, the device can also be used to communicate +guest memory statistics to the host. + + Configuration + + Subsystem Device ID 5 + + Virtqueues 0:inflateq. 1:deflateq. 2:statsq.[footnote: +Only if VIRTIO_BALLON_F_STATS_VQ set +] + + Feature bits + + VIRTIO_BALLOON_F_MUST_TELL_HOST (0) Host must be told before + pages from the balloon are used. + + VIRTIO_BALLOON_F_STATS_VQ (1) A virtqueue for reporting guest + memory statistics is present. + + Device configuration layout Both fields of this configuration + are always available. Note that they are little endian, despite + convention that device fields are guest endian:struct virtio_balloon_config { + + u32 num_pages; + + u32 actual; + +}; + + Device Initialization + + The inflate and deflate virtqueues are identified. + + If the VIRTIO_BALLOON_F_STATS_VQ feature bit is negotiated: + + Identify the stats virtqueue. + + Add one empty buffer to the stats virtqueue and notify the + host. + +Device operation begins immediately. + + Device Operation + + Memory Ballooning The device is driven by the receipt of a + configuration change interrupt. + + The “num_pages” configuration field is examined. If this is + greater than the “actual” number of pages, memory must be given + to the balloon. If it is less than the “actual” number of + pages, memory may be taken back from the balloon for general + use. + + To supply memory to the balloon (aka. inflate): + + The driver constructs an array of addresses of unused memory + pages. These addresses are divided by 4096[footnote: +This is historical, and independent of the guest page size +] and the descriptor describing the resulting 32-bit array is + added to the inflateq. + + To remove memory from the balloon (aka. deflate): + + The driver constructs an array of addresses of memory pages it + has previously given to the balloon, as described above. This + descriptor is added to the deflateq. + + If the VIRTIO_BALLOON_F_MUST_TELL_HOST feature is set, the + guest may not use these requested pages until that descriptor + in the deflateq has been used by the device. + + Otherwise, the guest may begin to re-use pages previously given + to the balloon before the device has acknowledged their + withdrawl. [footnote: +In this case, deflation advice is merely a courtesy +] + + In either case, once the device has completed the inflation or + deflation, the “actual” field of the configuration should be + updated to reflect the new number of pages in the balloon.[footnote: +As updates to configuration space are not atomic, this field +isn't particularly reliable, but can be used to diagnose buggy +guests. +] + + Memory Statistics + +The stats virtqueue is atypical because communication is driven +by the device (not the driver). The channel becomes active at +driver initialization time when the driver adds an empty buffer +and notifies the device. A request for memory statistics proceeds +as follows: + + The device pushes the buffer onto the used ring and sends an + interrupt. + + The driver pops the used buffer and discards it. + + The driver collects memory statistics and writes them into a + new buffer. + + The driver adds the buffer to the virtqueue and notifies the + device. + + The device pops the buffer (retaining it to initiate a + subsequent request) and consumes the statistics. + + Memory Statistics Format Each statistic consists of a 16 bit + tag and a 64 bit value. Both quantities are represented in the + native endian of the guest. All statistics are optional and the + driver may choose which ones to supply. To guarantee backwards + compatibility, unsupported statistics should be omitted. + + struct virtio_balloon_stat { + +#define VIRTIO_BALLOON_S_SWAP_IN 0 + +#define VIRTIO_BALLOON_S_SWAP_OUT 1 + +#define VIRTIO_BALLOON_S_MAJFLT 2 + +#define VIRTIO_BALLOON_S_MINFLT 3 + +#define VIRTIO_BALLOON_S_MEMFREE 4 + +#define VIRTIO_BALLOON_S_MEMTOT 5 + + u16 tag; + + u64 val; + +} __attribute__((packed)); + + Tags + + VIRTIO_BALLOON_S_SWAP_IN The amount of memory that has been + swapped in (in bytes). + + VIRTIO_BALLOON_S_SWAP_OUT The amount of memory that has been + swapped out to disk (in bytes). + + VIRTIO_BALLOON_S_MAJFLT The number of major page faults that + have occurred. + + VIRTIO_BALLOON_S_MINFLT The number of minor page faults that + have occurred. + + VIRTIO_BALLOON_S_MEMFREE The amount of memory not being used + for any purpose (in bytes). + + VIRTIO_BALLOON_S_MEMTOT The total amount of memory available + (in bytes). + diff --git a/Documentation/vm/transhuge.txt b/Documentation/vm/transhuge.txt index 0924aaca330..29bdf62aac0 100644 --- a/Documentation/vm/transhuge.txt +++ b/Documentation/vm/transhuge.txt @@ -123,10 +123,11 @@ be automatically shutdown if it's set to "never". khugepaged runs usually at low frequency so while one may not want to invoke defrag algorithms synchronously during the page faults, it should be worth invoking defrag at least in khugepaged. However it's -also possible to disable defrag in khugepaged: +also possible to disable defrag in khugepaged by writing 0 or enable +defrag in khugepaged by writing 1: -echo yes >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag -echo no >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag +echo 0 >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag +echo 1 >/sys/kernel/mm/transparent_hugepage/khugepaged/defrag You can also control how many pages khugepaged should scan at each pass: diff --git a/Documentation/watchdog/00-INDEX b/Documentation/watchdog/00-INDEX index ee994513a9b..fc51128071c 100644 --- a/Documentation/watchdog/00-INDEX +++ b/Documentation/watchdog/00-INDEX @@ -8,6 +8,8 @@ src/ - directory holding watchdog related example programs. watchdog-api.txt - description of the Linux Watchdog driver API. +watchdog-kernel-api.txt + - description of the Linux WatchDog Timer Driver Core kernel API. watchdog-parameters.txt - information on driver parameters (for drivers other than the ones that have driver-specific files here) diff --git a/Documentation/watchdog/watchdog-kernel-api.txt b/Documentation/watchdog/watchdog-kernel-api.txt new file mode 100644 index 00000000000..4f7c894244d --- /dev/null +++ b/Documentation/watchdog/watchdog-kernel-api.txt @@ -0,0 +1,162 @@ +The Linux WatchDog Timer Driver Core kernel API. +=============================================== +Last reviewed: 22-Jul-2011 + +Wim Van Sebroeck <wim@iguana.be> + +Introduction +------------ +This document does not describe what a WatchDog Timer (WDT) Driver or Device is. +It also does not describe the API which can be used by user space to communicate +with a WatchDog Timer. If you want to know this then please read the following +file: Documentation/watchdog/watchdog-api.txt . + +So what does this document describe? It describes the API that can be used by +WatchDog Timer Drivers that want to use the WatchDog Timer Driver Core +Framework. This framework provides all interfacing towards user space so that +the same code does not have to be reproduced each time. This also means that +a watchdog timer driver then only needs to provide the different routines +(operations) that control the watchdog timer (WDT). + +The API +------- +Each watchdog timer driver that wants to use the WatchDog Timer Driver Core +must #include <linux/watchdog.h> (you would have to do this anyway when +writing a watchdog device driver). This include file contains following +register/unregister routines: + +extern int watchdog_register_device(struct watchdog_device *); +extern void watchdog_unregister_device(struct watchdog_device *); + +The watchdog_register_device routine registers a watchdog timer device. +The parameter of this routine is a pointer to a watchdog_device structure. +This routine returns zero on success and a negative errno code for failure. + +The watchdog_unregister_device routine deregisters a registered watchdog timer +device. The parameter of this routine is the pointer to the registered +watchdog_device structure. + +The watchdog device structure looks like this: + +struct watchdog_device { + const struct watchdog_info *info; + const struct watchdog_ops *ops; + unsigned int bootstatus; + unsigned int timeout; + unsigned int min_timeout; + unsigned int max_timeout; + void *driver_data; + unsigned long status; +}; + +It contains following fields: +* info: a pointer to a watchdog_info structure. This structure gives some + additional information about the watchdog timer itself. (Like it's unique name) +* ops: a pointer to the list of watchdog operations that the watchdog supports. +* timeout: the watchdog timer's timeout value (in seconds). +* min_timeout: the watchdog timer's minimum timeout value (in seconds). +* max_timeout: the watchdog timer's maximum timeout value (in seconds). +* bootstatus: status of the device after booting (reported with watchdog + WDIOF_* status bits). +* driver_data: a pointer to the drivers private data of a watchdog device. + This data should only be accessed via the watchdog_set_drvadata and + watchdog_get_drvdata routines. +* status: this field contains a number of status bits that give extra + information about the status of the device (Like: is the watchdog timer + running/active, is the nowayout bit set, is the device opened via + the /dev/watchdog interface or not, ...). + +The list of watchdog operations is defined as: + +struct watchdog_ops { + struct module *owner; + /* mandatory operations */ + int (*start)(struct watchdog_device *); + int (*stop)(struct watchdog_device *); + /* optional operations */ + int (*ping)(struct watchdog_device *); + unsigned int (*status)(struct watchdog_device *); + int (*set_timeout)(struct watchdog_device *, unsigned int); + long (*ioctl)(struct watchdog_device *, unsigned int, unsigned long); +}; + +It is important that you first define the module owner of the watchdog timer +driver's operations. This module owner will be used to lock the module when +the watchdog is active. (This to avoid a system crash when you unload the +module and /dev/watchdog is still open). +Some operations are mandatory and some are optional. The mandatory operations +are: +* start: this is a pointer to the routine that starts the watchdog timer + device. + The routine needs a pointer to the watchdog timer device structure as a + parameter. It returns zero on success or a negative errno code for failure. +* stop: with this routine the watchdog timer device is being stopped. + The routine needs a pointer to the watchdog timer device structure as a + parameter. It returns zero on success or a negative errno code for failure. + Some watchdog timer hardware can only be started and not be stopped. The + driver supporting this hardware needs to make sure that a start and stop + routine is being provided. This can be done by using a timer in the driver + that regularly sends a keepalive ping to the watchdog timer hardware. + +Not all watchdog timer hardware supports the same functionality. That's why +all other routines/operations are optional. They only need to be provided if +they are supported. These optional routines/operations are: +* ping: this is the routine that sends a keepalive ping to the watchdog timer + hardware. + The routine needs a pointer to the watchdog timer device structure as a + parameter. It returns zero on success or a negative errno code for failure. + Most hardware that does not support this as a separate function uses the + start function to restart the watchdog timer hardware. And that's also what + the watchdog timer driver core does: to send a keepalive ping to the watchdog + timer hardware it will either use the ping operation (when available) or the + start operation (when the ping operation is not available). + (Note: the WDIOC_KEEPALIVE ioctl call will only be active when the + WDIOF_KEEPALIVEPING bit has been set in the option field on the watchdog's + info structure). +* status: this routine checks the status of the watchdog timer device. The + status of the device is reported with watchdog WDIOF_* status flags/bits. +* set_timeout: this routine checks and changes the timeout of the watchdog + timer device. It returns 0 on success, -EINVAL for "parameter out of range" + and -EIO for "could not write value to the watchdog". On success the timeout + value of the watchdog_device will be changed to the value that was just used + to re-program the watchdog timer device. + (Note: the WDIOF_SETTIMEOUT needs to be set in the options field of the + watchdog's info structure). +* ioctl: if this routine is present then it will be called first before we do + our own internal ioctl call handling. This routine should return -ENOIOCTLCMD + if a command is not supported. The parameters that are passed to the ioctl + call are: watchdog_device, cmd and arg. + +The status bits should (preferably) be set with the set_bit and clear_bit alike +bit-operations. The status bits that are defined are: +* WDOG_ACTIVE: this status bit indicates whether or not a watchdog timer device + is active or not. When the watchdog is active after booting, then you should + set this status bit (Note: when you register the watchdog timer device with + this bit set, then opening /dev/watchdog will skip the start operation) +* WDOG_DEV_OPEN: this status bit shows whether or not the watchdog device + was opened via /dev/watchdog. + (This bit should only be used by the WatchDog Timer Driver Core). +* WDOG_ALLOW_RELEASE: this bit stores whether or not the magic close character + has been sent (so that we can support the magic close feature). + (This bit should only be used by the WatchDog Timer Driver Core). +* WDOG_NO_WAY_OUT: this bit stores the nowayout setting for the watchdog. + If this bit is set then the watchdog timer will not be able to stop. + +Note: The WatchDog Timer Driver Core supports the magic close feature and +the nowayout feature. To use the magic close feature you must set the +WDIOF_MAGICCLOSE bit in the options field of the watchdog's info structure. +The nowayout feature will overrule the magic close feature. + +To get or set driver specific data the following two helper functions should be +used: + +static inline void watchdog_set_drvdata(struct watchdog_device *wdd, void *data) +static inline void *watchdog_get_drvdata(struct watchdog_device *wdd) + +The watchdog_set_drvdata function allows you to add driver specific data. The +arguments of this function are the watchdog device where you want to add the +driver specific data to and a pointer to the data itself. + +The watchdog_get_drvdata function allows you to retrieve driver specific data. +The argument of this function is the watchdog device where you want to retrieve +data from. The function retruns the pointer to the driver specific data. diff --git a/Documentation/zh_CN/email-clients.txt b/Documentation/zh_CN/email-clients.txt index 5d65e323d06..b9a1a3e6c78 100644 --- a/Documentation/zh_CN/email-clients.txt +++ b/Documentation/zh_CN/email-clients.txt @@ -1,4 +1,4 @@ -锘?Chinese translated version of Documentation/email-clients.txt +Chinese translated version of Documentation/email-clients.txt If you have any comment or update to the content, please contact the original document maintainer directly. However, if you have a problem @@ -8,203 +8,203 @@ or if there is a problem with the translation. Chinese maintainer: Harry Wei <harryxiyou@gmail.com> --------------------------------------------------------------------- -Documentation/email-clients.txt ???涓????缈昏?? +Documentation/email-clients.txt 的中文翻译 -濡??????宠??璁烘????存?版???????????瀹癸??璇风?存?ヨ??绯诲?????妗ｇ??缁存?よ?????濡????浣?浣跨?ㄨ?辨?? -浜ゆ???????伴?剧??璇?锛?涔????浠ュ??涓???????缁存?よ??姹???┿??濡???????缈昏????存?颁???????舵?????缈? -璇?瀛???ㄩ??棰?锛?璇疯??绯讳腑??????缁存?よ????? +如果想评论或更新本文的内容，请直接联系原文档的维护者。如果你使用英文 +交流有困难的话，也可以向中文版维护者求助。如果本翻译更新不及时或者翻 +译存在问题，请联系中文版维护者。 -涓???????缁存?よ??锛? 璐惧??濞? Harry Wei <harryxiyou@gmail.com> -涓???????缈昏?????锛? 璐惧??濞? Harry Wei <harryxiyou@gmail.com> -涓?????????¤?????锛? Yinglin Luan <synmyth@gmail.com> +中文版维护者： 贾威威 Harry Wei <harryxiyou@gmail.com> +中文版翻译者： 贾威威 Harry Wei <harryxiyou@gmail.com> +中文版校译者： Yinglin Luan <synmyth@gmail.com> Xiaochen Wang <wangxiaochen0@gmail.com> yaxinsn <yaxinsn@163.com> -浠ヤ??涓烘?ｆ?? +以下为正文 --------------------------------------------------------------------- -Linux???浠跺?㈡?风?????缃?淇℃?? +Linux邮件客户端配置信息 ====================================================================== -?????????缃? +普通配置 ---------------------------------------------------------------------- -Linux?????歌ˉ涓???????杩????浠惰?????浜ょ??锛????濂芥??琛ヤ??浣?涓洪??浠朵????????宓?????????????浜?缁存?よ?? -??ユ?堕??浠讹??浣???????浠剁?????瀹规?煎??搴?璇ユ??"text/plain"?????惰??锛????浠朵????????涓?璧???????锛? -???涓鸿??浼?浣胯ˉ涓????寮???ㄩ?ㄥ????ㄨ??璁鸿??绋?涓???????寰???伴?俱?? +Linux内核补丁是通过邮件被提交的，最好把补丁作为邮件体的内嵌文本。有些维护者 +接收附件，但是附件的内容格式应该是"text/plain"。然而，附件一般是不赞成的， +因为这会使补丁的引用部分在评论过程中变的很困难。 -??ㄦ?ュ?????Linux?????歌ˉ涓???????浠跺?㈡?风????ㄥ?????琛ヤ????跺??璇ュ??浜?????????????濮???舵?????渚?濡?锛? -浠?浠?涓???芥?瑰?????????????ゅ?惰〃绗???????绌烘?硷???????虫????ㄦ??涓?琛????寮?澶存?????缁?灏俱?? +用来发送Linux内核补丁的邮件客户端在发送补丁时应该处于文本的原始状态。例如， +他们不能改变或者删除制表符或者空格，甚至是在每一行的开头或者结尾。 -涓?瑕????杩?"format=flowed"妯″????????琛ヤ?????杩???蜂??寮?璧蜂?????棰????浠ュ?????瀹崇?????琛???? +不要通过"format=flowed"模式发送补丁。这样会引起不可预期以及有害的断行。 -涓?瑕?璁╀????????浠跺?㈡?风??杩?琛??????ㄦ?㈣?????杩???蜂??浼???村??浣????琛ヤ????? +不要让你的邮件客户端进行自动换行。这样也会破坏你的补丁。 -???浠跺?㈡?风??涓???芥?瑰???????????瀛?绗????缂??????瑰?????瑕??????????琛ヤ???????芥??ASCII??????UTF-8缂??????瑰??锛? -濡????浣?浣跨??UTF-8缂??????瑰???????????浠讹????ｄ??浣?灏?浼???垮??涓?浜??????藉????????瀛?绗???????棰???? +邮件客户端不能改变文本的字符集编码方式。要发送的补丁只能是ASCII或者UTF-8编码方式， +如果你使用UTF-8编码方式发送邮件，那么你将会避免一些可能发生的字符集问题。 -???浠跺?㈡?风??搴?璇ュ舰???骞朵??淇???? References: ?????? In-Reply-To: ???棰?锛???ｄ?? -???浠惰??棰?灏变??浼?涓??????? +邮件客户端应该形成并且保持 References: 或者 In-Reply-To: 标题，那么 +邮件话题就不会中断。 -澶???剁??甯?(?????????璐寸??甯?)???甯镐????界?ㄤ??琛ヤ??锛????涓哄?惰〃绗?浼?杞????涓虹┖??笺??浣跨??xclipboard, xclip -??????xcutsel涔?璁稿??浠ワ??浣???????濂芥??璇?涓?涓?????????垮??浣跨?ㄥ????剁??甯???? +复制粘帖(或者剪贴粘帖)通常不能用于补丁，因为制表符会转换为空格。使用xclipboard, xclip +或者xcutsel也许可以，但是最好测试一下或者避免使用复制粘帖。 -涓?瑕???ㄤ娇???PGP/GPG缃插????????浠朵腑??????琛ヤ?????杩???蜂??浣垮??寰?澶???????涓???借?诲??????????ㄤ??浣????琛ヤ????? -锛?杩?涓????棰?搴?璇ユ?????浠ヤ慨澶????锛? +不要在使用PGP/GPG署名的邮件中包含补丁。这样会使得很多脚本不能读取和适用于你的补丁。 +（这个问题应该是可以修复的） -??ㄧ???????搁??浠跺??琛ㄥ?????琛ヤ??涔????锛?缁????宸卞?????涓?涓?琛ヤ?????涓?涓???????涓绘??锛?淇?瀛???ユ?跺?扮?? -???浠讹??灏?琛ヤ?????'patch'??戒护???涓?锛?濡??????????浜?锛????缁??????搁??浠跺??琛ㄥ???????? +在给内核邮件列表发送补丁之前，给自己发送一个补丁是个不错的主意，保存接收到的 +邮件，将补丁用'patch'命令打上，如果成功了，再给内核邮件列表发送。 -涓?浜????浠跺?㈡?风?????绀? +一些邮件客户端提示 ---------------------------------------------------------------------- -杩????缁???轰??浜?璇?缁????MUA???缃????绀猴?????浠ョ?ㄤ??缁?Linux?????稿?????琛ヤ?????杩?浜?骞朵???????虫?? -?????????杞?浠跺?????缃???荤????? +这里给出一些详细的MUA配置提示，可以用于给Linux内核发送补丁。这些并不意味是 +所有的软件包配置总结。 -璇存??锛? -TUI = 浠ユ?????涓哄?虹???????ㄦ?锋?ュ?? -GUI = ??惧舰?????㈢?ㄦ?锋?ュ?? +说明： +TUI = 以文本为基础的用户接口 +GUI = 图形界面用户接口 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Alpine (TUI) -???缃????椤癸?? -???"Sending Preferences"??ㄥ??锛? +配置选项： +在"Sending Preferences"部分： -- "Do Not Send Flowed Text"蹇?椤诲????? -- "Strip Whitespace Before Sending"蹇?椤诲?抽?? +- "Do Not Send Flowed Text"必须开启 +- "Strip Whitespace Before Sending"必须关闭 -褰???????浠舵?讹????????搴?璇ユ?惧?ㄨˉ涓?浼???虹?扮????版?癸????跺?????涓?CTRL-R缁???????锛?浣挎??瀹???? -琛ヤ?????浠跺????ュ?伴??浠朵腑??? +当写邮件时，光标应该放在补丁会出现的地方，然后按下CTRL-R组合键，使指定的 +补丁文件嵌入到邮件中。 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Evolution (GUI) -涓?浜?寮????????????????浣跨?ㄥ????????琛ヤ?? +一些开发者成功的使用它发送补丁 -褰??????╅??浠堕??椤癸??Preformat - 浠?Format->Heading->Preformatted (Ctrl-7)??????宸ュ?锋?? +当选择邮件选项：Preformat + 从Format->Heading->Preformatted (Ctrl-7)或者工具栏 -??跺??浣跨??锛? - Insert->Text File... (Alt-n x)?????ヨˉ涓????浠躲?? +然后使用： + Insert->Text File... (Alt-n x)插入补丁文件。 -浣?杩????浠?"diff -Nru old.c new.c | xclip"锛???????Preformat锛???跺??浣跨?ㄤ腑??撮??杩?琛?绮?甯???? +你还可以"diff -Nru old.c new.c | xclip"，选择Preformat，然后使用中间键进行粘帖。 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Kmail (GUI) -涓?浜?寮????????????????浣跨?ㄥ????????琛ヤ????? +一些开发者成功的使用它发送补丁。 -榛?璁よ?剧疆涓?涓?HTML??煎??????????????锛?涓?瑕??????ㄥ????? +默认设置不为HTML格式是合适的；不要启用它。 -褰?涔????涓?灏????浠剁????跺??锛???ㄩ??椤逛?????涓?瑕??????╄????ㄦ?㈣????????涓????缂虹?瑰氨???浣???ㄩ??浠朵腑杈???ョ??浠讳???????? -??戒??浼?琚??????ㄦ?㈣??锛????姝や??蹇?椤诲?ㄥ?????琛ヤ??涔?????????ㄦ?㈣????????绠?????????规??灏辨???????ㄨ????ㄦ?㈣????ヤ功??????浠讹?? -??跺?????瀹?淇?瀛?涓鸿??绋裤??涓????浣???ㄨ??绋夸腑???娆℃??寮?瀹?锛?瀹?宸茬????ㄩ?ㄨ????ㄦ?㈣??浜?锛???ｄ??浣???????浠惰?界?舵病??? -?????╄????ㄦ?㈣??锛?浣????杩?涓?浼?澶卞?诲凡???????????ㄦ?㈣????? +当书写一封邮件的时候，在选项下面不要选择自动换行。唯一的缺点就是你在邮件中输入的任何文本 +都不会被自动换行，因此你必须在发送补丁之前手动换行。最简单的方法就是启用自动换行来书写邮件， +然后把它保存为草稿。一旦你在草稿中再次打开它，它已经全部自动换行了，那么你的邮件虽然没有 +选择自动换行，但是还不会失去已有的自动换行。 -??ㄩ??浠剁??搴????锛??????ヨˉ涓?涔????锛???句??甯哥?ㄧ??琛ヤ??瀹????绗?锛?涓?涓?杩?瀛????(---)??? +在邮件的底部，插入补丁之前，放上常用的补丁定界符：三个连字号(---)。 -??跺?????"Message"????????＄??锛??????╂????ユ??浠讹????ョ????????浣????琛ヤ?????浠躲??杩????涓?涓?棰?澶???????椤癸??浣????浠? -???杩?瀹????缃?浣???????浠跺缓绔?宸ュ?锋????????锛?杩????浠ュ甫涓?"insert file"??炬????? +然后在"Message"菜单条目，选择插入文件，接着选取你的补丁文件。还有一个额外的选项，你可以 +通过它配置你的邮件建立工具栏菜单，还可以带上"insert file"图标。 -浣????浠ュ????ㄥ?伴??杩?GPG???璁伴??浠讹??浣???????宓?琛ヤ?????濂戒??瑕?浣跨??GPG???璁板??浠????浣?涓哄??宓??????????绛惧??琛ヤ??锛? -褰?浠?GPG涓???????7浣?缂??????朵??浣夸??浠?????????村??澶??????? +你可以安全地通过GPG标记附件，但是内嵌补丁最好不要使用GPG标记它们。作为内嵌文本的签发补丁， +当从GPG中提取7位编码时会使他们变的更加复杂。 -濡????浣????瑕?浠ラ??浠剁??褰㈠????????琛ヤ??锛???ｄ??灏卞?抽????瑰?婚??浠讹????跺?????涓?灞???э??绐????"Suggest automatic -display"锛?杩???峰??宓????浠舵?村?规??璁╄?昏???????般?? +如果你非要以附件的形式发送补丁，那么就右键点击附件，然后选中属性，突出"Suggest automatic +display"，这样内嵌附件更容易让读者看到。 -褰?浣?瑕?淇?瀛?灏?瑕?????????????宓???????琛ヤ??锛?浣????浠ヤ??娑???????琛ㄧ????奸????╁?????琛ヤ????????浠讹????跺????冲?婚????? -"save as"???浣????浠ヤ娇??ㄤ??涓?娌℃????存?圭????????琛ヤ????????浠讹??濡????瀹????浠ユ?ｇ‘???褰㈠??缁???????褰?浣?姝ｇ????ㄥ?? -???宸辩??绐???ｄ??涓?瀵????锛???ｆ?舵病??????椤瑰??浠ヤ??瀛????浠?--宸茬?????涓?涓?杩???风??bug琚?姹???ュ?颁??kmail???bugzilla -骞朵??甯????杩?灏?浼?琚?澶??????????浠舵??浠ュ?????瀵规??涓???ㄦ?峰??璇诲???????????琚?淇?瀛????锛????浠ュ?????浣???虫?????浠跺????跺?板?朵????版?癸?? -浣?涓?寰?涓????浠?浠????????????逛负缁?????????翠?????璇汇?? +当你要保存将要发送的内嵌文本补丁，你可以从消息列表窗格选择包含补丁的邮件，然后右击选择 +"save as"。你可以使用一个没有更改的包含补丁的邮件，如果它是以正确的形式组成。当你正真在它 +自己的窗口之下察看，那时没有选项可以保存邮件--已经有一个这样的bug被汇报到了kmail的bugzilla +并且希望这将会被处理。邮件是以只针对某个用户可读写的权限被保存的，所以如果你想把邮件复制到其他地方， +你不得不把他们的权限改为组或者整体可读。 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Lotus Notes (GUI) -涓?瑕?浣跨?ㄥ????? +不要使用它。 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Mutt (TUI) -寰?澶?Linux寮????浜哄??浣跨??mutt瀹㈡?风??锛????浠ヨ?????瀹????瀹?宸ヤ????????甯告??浜???? +很多Linux开发人员使用mutt客户端，所以证明它肯定工作的非常漂亮。 -Mutt涓????甯?缂?杈????锛????浠ヤ??绠′??浣跨?ㄤ??涔?缂?杈???ㄩ?戒??搴?璇ュ甫????????ㄦ??琛????澶у????扮??杈???ㄩ?藉甫??? -涓?涓?"insert file"???椤癸??瀹????浠ラ??杩?涓???瑰?????浠跺??瀹圭????瑰???????ユ??浠躲?? +Mutt不自带编辑器，所以不管你使用什么编辑器都不应该带有自动断行。大多数编辑器都带有 +一个"insert file"选项，它可以通过不改变文件内容的方式插入文件。 -'vim'浣?涓?mutt???缂?杈????锛? +'vim'作为mutt的编辑器： set editor="vi" - 濡????浣跨??xclip锛???插?ヤ互涓???戒护 + 如果使用xclip，敲入以下命令 :set paste - ???涓????涔??????????shift-insert??????浣跨?? + 按中键之前或者shift-insert或者使用 :r filename -濡??????宠?????琛ヤ??浣?涓哄??宓?????????? -(a)ttach宸ヤ?????寰?濂斤??涓?甯????"set paste"??? +如果想要把补丁作为内嵌文本。 +(a)ttach工作的很好，不带有"set paste"。 -???缃????椤癸?? -瀹?搴?璇ヤ互榛?璁よ?剧疆???褰㈠??宸ヤ????? -??惰??锛????"send_charset"璁剧疆涓?"us-ascii::utf-8"涔????涓?涓?涓???????涓绘????? +配置选项： +它应该以默认设置的形式工作。 +然而，把"send_charset"设置为"us-ascii::utf-8"也是一个不错的主意。 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Pine (TUI) -Pine杩???绘??涓?浜?绌烘?煎????????棰?锛?浣????杩?浜???板?ㄥ??璇ラ?借??淇?澶?浜???? +Pine过去有一些空格删减问题，但是这些现在应该都被修复了。 -濡???????浠ワ??璇蜂娇???alpine(pine???缁ф?胯??) +如果可以，请使用alpine(pine的继承者) -???缃????椤癸?? -- ???杩?????????????瑕?娑???ゆ??绋??????? -- "no-strip-whitespace-before-send"???椤逛????????瑕??????? +配置选项： +- 最近的版本需要消除流程文本 +- "no-strip-whitespace-before-send"选项也是需要的。 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Sylpheed (GUI) -- ???宓??????????浠ュ??濂界??宸ヤ??锛???????浣跨?ㄩ??浠讹????? -- ???璁镐娇??ㄥ????ㄧ??缂?杈???ㄣ?? -- 瀵逛?????褰?杈?澶???堕??甯告????? -- 濡???????杩?non-SSL杩???ワ?????娉?浣跨??TLS SMTP????????? -- ??ㄧ?????绐???ｄ腑???涓?涓?寰??????ㄧ??ruler bar??? -- 缁???板?????涓?娣诲????板??灏变??浼?姝ｇ‘???浜?瑙ｆ?剧ず?????? +- 内嵌文本可以很好的工作（或者使用附件）。 +- 允许使用外部的编辑器。 +- 对于目录较多时非常慢。 +- 如果通过non-SSL连接，无法使用TLS SMTP授权。 +- 在组成窗口中有一个很有用的ruler bar。 +- 给地址本中添加地址就不会正确的了解显示名。 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Thunderbird (GUI) -榛?璁ゆ????典??锛?thunderbird寰?瀹规??????????????锛?浣????杩????涓?浜???规?????浠ュ己??跺?????寰???村ソ??? +默认情况下，thunderbird很容易损坏文本，但是还有一些方法可以强制它变得更好。 -- ??ㄧ?ㄦ?峰????疯?剧疆???锛?缁???????瀵诲??锛?涓?瑕???????"Compose messages in HTML format"??? +- 在用户帐号设置里，组成和寻址，不要选择"Compose messages in HTML format"。 -- 缂?杈?浣????Thunderbird???缃?璁剧疆??ヤ娇瀹?涓?瑕????琛?浣跨??锛?user_pref("mailnews.wraplength", 0); +- 编辑你的Thunderbird配置设置来使它不要拆行使用：user_pref("mailnews.wraplength", 0); -- 缂?杈?浣????Thunderbird???缃?璁剧疆锛?浣垮??涓?瑕?浣跨??"format=flowed"??煎??锛?user_pref("mailnews. +- 编辑你的Thunderbird配置设置，使它不要使用"format=flowed"格式：user_pref("mailnews. send_plaintext_flowed", false); -- 浣????瑕?浣?Thunderbird???涓洪???????煎????瑰??锛? - 濡????榛?璁ゆ????典??浣?涔??????????HTML??煎??锛???ｄ?????寰???俱??浠?浠?浠????棰???????涓????妗?涓???????"Preformat"??煎????? - 濡????榛?璁ゆ????典??浣?涔??????????????????煎??锛?浣?涓?寰????瀹???逛负HTML??煎??锛?浠?浠?浣?涓轰??娆℃?х??锛???ヤ功?????扮??娑????锛? - ??跺??寮哄?朵娇瀹??????版???????煎??锛???????瀹?灏变?????琛????瑕?瀹???板??锛???ㄥ??淇＄????炬??涓?浣跨??shift?????ヤ娇瀹????涓?HTML - ??煎??锛???跺?????棰???????涓????妗?涓???????"Preformat"??煎????? +- 你需要使Thunderbird变为预先格式方式： + 如果默认情况下你书写的是HTML格式，那不是很难。仅仅从标题栏的下拉框中选择"Preformat"格式。 + 如果默认情况下你书写的是文本格式，你不得把它改为HTML格式（仅仅作为一次性的）来书写新的消息， + 然后强制使它回到文本格式，否则它就会拆行。要实现它，在写信的图标上使用shift键来使它变为HTML + 格式，然后标题栏的下拉框中选择"Preformat"格式。 -- ???璁镐娇??ㄥ????ㄧ??缂?杈????锛? - ???瀵?Thunderbird???琛ヤ?????绠?????????规??灏辨??浣跨?ㄤ??涓?"external editor"??╁??锛???跺??浣跨?ㄤ????????娆㈢?? - $EDITOR??ヨ?诲???????????骞惰ˉ涓???版?????涓????瑕?瀹???板??锛????浠ヤ??杞藉苟涓?瀹?瑁?杩?涓???╁??锛???跺??娣诲??涓?涓?浣跨?ㄥ????? - ??????View->Toolbars->Customize...??????褰?浣?涔????淇℃???????跺??浠?浠???瑰?诲??灏卞??浠ヤ????? +- 允许使用外部的编辑器： + 针对Thunderbird打补丁最简单的方法就是使用一个"external editor"扩展，然后使用你最喜欢的 + $EDITOR来读取或者合并补丁到文本中。要实现它，可以下载并且安装这个扩展，然后添加一个使用它的 + 按键View->Toolbars->Customize...最后当你书写信息的时候仅仅点击它就可以了。 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ TkRat (GUI) -???浠ヤ娇??ㄥ?????浣跨??"Insert file..."??????澶???ㄧ??缂?杈???ㄣ?? +可以使用它。使用"Insert file..."或者外部的编辑器。 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Gmail (Web GUI) -涓?瑕?浣跨?ㄥ????????琛ヤ????? +不要使用它发送补丁。 -Gmail缃?椤靛?㈡?风???????ㄥ?版????惰〃绗?杞????涓虹┖??笺?? +Gmail网页客户端自动地把制表符转换为空格。 -??界?跺?惰〃绗?杞????涓虹┖??奸??棰????浠ヨ??澶???ㄧ??杈???ㄨВ??筹???????跺??杩?浼?浣跨?ㄥ??杞???㈣?????姣?琛???????涓?78涓?瀛?绗???? +虽然制表符转换为空格问题可以被外部编辑器解决，同时它还会使用回车换行把每行拆分为78个字符。 -???涓?涓????棰????Gmail杩?浼????浠讳??涓????ASCII???瀛?绗????淇℃????逛负base64缂???????瀹????涓?瑗垮????????娆ф床浜虹?????瀛???? +另一个问题是Gmail还会把任何不是ASCII的字符的信息改为base64编码。它把东西变的像欧洲人的名字。 ### diff --git a/Documentation/zh_CN/magic-number.txt b/Documentation/zh_CN/magic-number.txt index 4c4ce853577..c278f412dc6 100644 --- a/Documentation/zh_CN/magic-number.txt +++ b/Documentation/zh_CN/magic-number.txt @@ -66,7 +66,7 @@ MKISS_DRIVER_MAGIC 0x04bf mkiss_channel drivers/net/mkiss.h RISCOM8_MAGIC 0x0907 riscom_port drivers/char/riscom8.h SPECIALIX_MAGIC 0x0907 specialix_port drivers/char/specialix_io8.h HDLC_MAGIC 0x239e n_hdlc drivers/char/n_hdlc.c -APM_BIOS_MAGIC 0x4101 apm_user arch/i386/kernel/apm.c +APM_BIOS_MAGIC 0x4101 apm_user arch/x86/kernel/apm_32.c CYCLADES_MAGIC 0x4359 cyclades_port include/linux/cyclades.h DB_MAGIC 0x4442 fc_info drivers/net/iph5526_novram.c DL_MAGIC 0x444d fc_info drivers/net/iph5526_novram.c |
