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-rw-r--r--drivers/acpi/dock.c1
-rw-r--r--drivers/acpi/processor_idle.c36
-rw-r--r--drivers/acpi/processor_pdc.c14
-rw-r--r--drivers/acpi/processor_perflib.c6
-rw-r--r--drivers/acpi/scan.c27
-rw-r--r--drivers/acpi/tables.c4
-rw-r--r--drivers/ata/ahci.c12
-rw-r--r--drivers/base/class.c2
-rw-r--r--drivers/block/virtio_blk.c61
-rw-r--r--drivers/char/Kconfig8
-rw-r--r--drivers/char/hvc_beat.c2
-rw-r--r--drivers/char/virtio_console.c1578
-rw-r--r--drivers/clocksource/cs5535-clockevt.c2
-rw-r--r--drivers/gpu/drm/drm_edid.c47
-rw-r--r--drivers/gpu/drm/i915/i915_drv.c30
-rw-r--r--drivers/gpu/drm/i915/intel_lvds.c7
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_bios.c7
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_bios.h2
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_drv.h1
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_mem.c113
-rw-r--r--drivers/gpu/drm/nouveau/nv04_dac.c6
-rw-r--r--drivers/gpu/drm/nouveau/nv17_tv.c2
-rw-r--r--drivers/gpu/drm/nouveau/nv50_instmem.c58
-rw-r--r--drivers/gpu/drm/radeon/atom.c2
-rw-r--r--drivers/gpu/drm/radeon/r600_blit_kms.c3
-rw-r--r--drivers/gpu/drm/radeon/r600_cp.c9
-rw-r--r--drivers/gpu/drm/radeon/radeon.h9
-rw-r--r--drivers/gpu/drm/radeon/radeon_atombios.c9
-rw-r--r--drivers/gpu/drm/radeon/radeon_combios.c44
-rw-r--r--drivers/gpu/drm/radeon/radeon_connectors.c5
-rw-r--r--drivers/gpu/drm/radeon/radeon_cs.c10
-rw-r--r--drivers/gpu/drm/radeon/radeon_drv.h3
-rw-r--r--drivers/gpu/drm/radeon/radeon_object.c36
-rw-r--r--drivers/gpu/drm/radeon/radeon_object.h4
-rw-r--r--drivers/gpu/drm/radeon/radeon_ring.c107
-rw-r--r--drivers/gpu/drm/radeon/rv770.c9
-rw-r--r--drivers/gpu/drm/ttm/ttm_tt.c18
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_drv.c49
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c108
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_fb.c3
-rw-r--r--drivers/gpu/vga/vgaarb.c2
-rw-r--r--drivers/hid/Kconfig54
-rw-r--r--drivers/hid/Makefile9
-rw-r--r--drivers/hid/hid-3m-pct.c290
-rw-r--r--drivers/hid/hid-apple.c17
-rw-r--r--drivers/hid/hid-core.c23
-rw-r--r--drivers/hid/hid-debug.c6
-rw-r--r--drivers/hid/hid-ids.h37
-rw-r--r--drivers/hid/hid-input.c12
-rw-r--r--drivers/hid/hid-lg.c7
-rw-r--r--drivers/hid/hid-lg.h6
-rw-r--r--drivers/hid/hid-lg3ff.c176
-rw-r--r--drivers/hid/hid-lgff.c1
-rw-r--r--drivers/hid/hid-magicmouse.c449
-rw-r--r--drivers/hid/hid-mosart.c273
-rw-r--r--drivers/hid/hid-ntrig.c212
-rw-r--r--drivers/hid/hid-ortek.c56
-rw-r--r--drivers/hid/hid-quanta.c260
-rw-r--r--drivers/hid/hid-sony.c23
-rw-r--r--drivers/hid/hid-stantum.c283
-rw-r--r--drivers/hid/hid-wacom.c28
-rw-r--r--drivers/hid/hidraw.c2
-rw-r--r--drivers/hid/usbhid/hid-core.c42
-rw-r--r--drivers/hid/usbhid/hid-quirks.c3
-rw-r--r--drivers/hid/usbhid/usbhid.h2
-rw-r--r--drivers/input/input-polldev.c6
-rw-r--r--drivers/input/serio/i8042.c8
-rw-r--r--drivers/input/touchscreen/usbtouchscreen.c8
-rw-r--r--drivers/macintosh/adb.c4
-rw-r--r--drivers/macintosh/therm_pm72.c8
-rw-r--r--drivers/macintosh/therm_windtunnel.c2
-rw-r--r--drivers/macintosh/via-pmu-backlight.c8
-rw-r--r--drivers/macintosh/via-pmu.c8
-rw-r--r--drivers/macintosh/windfarm_core.c6
-rw-r--r--drivers/macintosh/windfarm_cpufreq_clamp.c6
-rw-r--r--drivers/macintosh/windfarm_lm75_sensor.c6
-rw-r--r--drivers/macintosh/windfarm_max6690_sensor.c6
-rw-r--r--drivers/macintosh/windfarm_pm112.c2
-rw-r--r--drivers/macintosh/windfarm_pm121.c2
-rw-r--r--drivers/macintosh/windfarm_pm81.c4
-rw-r--r--drivers/macintosh/windfarm_pm91.c2
-rw-r--r--drivers/macintosh/windfarm_smu_sensors.c6
-rw-r--r--drivers/media/dvb/dvb-usb/Kconfig4
-rw-r--r--drivers/media/dvb/frontends/l64781.c4
-rw-r--r--drivers/media/video/bt8xx/bttv-driver.c1
-rw-r--r--drivers/media/video/bt8xx/bttv-i2c.c8
-rw-r--r--drivers/media/video/bt8xx/bttvp.h1
-rw-r--r--drivers/media/video/mt9t112.c2
-rw-r--r--drivers/media/video/pwc/pwc-ctrl.c2
-rw-r--r--drivers/net/benet/be_cmds.c1
-rw-r--r--drivers/net/e1000/e1000_main.c19
-rw-r--r--drivers/net/ixgbe/ixgbe_82598.c22
-rw-r--r--drivers/net/ixgbe/ixgbe_main.c4
-rw-r--r--drivers/net/mace.c2
-rw-r--r--drivers/net/sfc/efx.c1
-rw-r--r--drivers/net/sfc/falcon_boards.c45
-rw-r--r--drivers/net/sfc/mcdi.c2
-rw-r--r--drivers/net/sfc/qt202x_phy.c2
-rw-r--r--drivers/net/tc35815.c1
-rw-r--r--drivers/net/usb/cdc_ether.c5
-rw-r--r--drivers/net/via-velocity.c41
-rw-r--r--drivers/net/wireless/ath/ath9k/xmit.c4
-rw-r--r--drivers/net/wireless/b43/b43.h1
-rw-r--r--drivers/net/wireless/b43/main.c13
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-4965.c2
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-5000.c8
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-core.c1
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-core.h2
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-rx.c5
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-tx.c22
-rw-r--r--drivers/net/wireless/iwmc3200wifi/rx.c2
-rw-r--r--drivers/net/wireless/rtl818x/rtl8187_dev.c1
-rw-r--r--drivers/of/Kconfig8
-rw-r--r--drivers/of/Makefile1
-rw-r--r--drivers/of/base.c318
-rw-r--r--drivers/of/fdt.c590
-rw-r--r--drivers/of/gpio.c13
-rw-r--r--drivers/of/of_i2c.c4
-rw-r--r--drivers/of/of_mdio.c8
-rw-r--r--drivers/of/of_spi.c6
-rw-r--r--drivers/pci/hotplug/acpiphp_glue.c6
-rw-r--r--drivers/platform/x86/acer-wmi.c2
-rw-r--r--drivers/platform/x86/thinkpad_acpi.c2
-rw-r--r--drivers/sbus/char/openprom.c10
-rw-r--r--drivers/scsi/arm/fas216.c2
-rw-r--r--drivers/scsi/fcoe/fcoe.c18
-rw-r--r--drivers/scsi/fcoe/libfcoe.c2
-rw-r--r--drivers/scsi/libfc/fc_exch.c2
-rw-r--r--drivers/scsi/libfc/fc_fcp.c3
-rw-r--r--drivers/scsi/libfc/fc_lport.c3
-rw-r--r--drivers/scsi/libfc/fc_rport.c2
-rw-r--r--drivers/scsi/libiscsi_tcp.c8
-rw-r--r--drivers/scsi/megaraid/megaraid_sas.c18
-rw-r--r--drivers/serial/8250.c7
-rw-r--r--drivers/serial/pmac_zilog.c6
-rw-r--r--drivers/spi/Kconfig23
-rw-r--r--drivers/spi/Makefile3
-rw-r--r--drivers/spi/coldfire_qspi.c640
-rw-r--r--drivers/spi/davinci_spi.c1255
-rw-r--r--drivers/spi/dw_spi.c111
-rw-r--r--drivers/spi/dw_spi_mmio.c147
-rw-r--r--drivers/spi/dw_spi_pci.c2
-rw-r--r--drivers/spi/mpc52xx_psc_spi.c2
-rw-r--r--drivers/spi/mpc52xx_spi.c2
-rw-r--r--drivers/spi/spi_imx.c2
-rw-r--r--drivers/spi/spi_mpc8xxx.c8
-rw-r--r--drivers/spi/spi_ppc4xx.c2
-rw-r--r--drivers/spi/spi_s3c64xx.c89
-rw-r--r--drivers/spi/spi_sh_msiof.c2
-rw-r--r--drivers/spi/spi_stmp.c2
-rw-r--r--drivers/spi/xilinx_spi.c28
-rw-r--r--drivers/spi/xilinx_spi_of.c2
-rw-r--r--drivers/ssb/main.c3
-rw-r--r--drivers/usb/core/devio.c48
-rw-r--r--drivers/usb/gadget/f_eem.c3
-rw-r--r--drivers/usb/gadget/multi.c2
-rw-r--r--drivers/usb/gadget/r8a66597-udc.c1
-rw-r--r--drivers/usb/gadget/s3c-hsotg.c1
-rw-r--r--drivers/usb/host/ehci-hub.c13
-rw-r--r--drivers/usb/host/fhci-tds.c6
-rw-r--r--drivers/usb/misc/sisusbvga/sisusb.c1
-rw-r--r--drivers/usb/otg/Kconfig1
-rw-r--r--drivers/usb/serial/ftdi_sio.c25
-rw-r--r--drivers/usb/serial/ftdi_sio_ids.h18
-rw-r--r--drivers/usb/serial/sierra.c1
-rw-r--r--drivers/usb/storage/unusual_devs.h2
-rw-r--r--drivers/video/aty/aty128fb.c14
-rw-r--r--drivers/video/aty/atyfb_base.c10
-rw-r--r--drivers/video/aty/radeon_backlight.c6
-rw-r--r--drivers/video/efifb.c11
-rw-r--r--drivers/virtio/virtio_balloon.c109
-rw-r--r--drivers/virtio/virtio_pci.c2
-rw-r--r--drivers/virtio/virtio_ring.c59
-rw-r--r--drivers/watchdog/bfin_wdt.c13
174 files changed, 7848 insertions, 907 deletions
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index bbc2c1315c4..b2586f57e1f 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -935,6 +935,7 @@ static int dock_add(acpi_handle handle)
struct platform_device *dd;
id = dock_station_count;
+ memset(&ds, 0, sizeof(ds));
dd = platform_device_register_data(NULL, "dock", id, &ds, sizeof(ds));
if (IS_ERR(dd))
return PTR_ERR(dd);
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 7c0441f63b3..cc978a8c00b 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -110,6 +110,14 @@ static struct dmi_system_id __cpuinitdata processor_power_dmi_table[] = {
DMI_MATCH(DMI_BIOS_VENDOR,"Phoenix Technologies LTD"),
DMI_MATCH(DMI_BIOS_VERSION,"SHE845M0.86C.0013.D.0302131307")},
(void *)2},
+ { set_max_cstate, "Pavilion zv5000", {
+ DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
+ DMI_MATCH(DMI_PRODUCT_NAME,"Pavilion zv5000 (DS502A#ABA)")},
+ (void *)1},
+ { set_max_cstate, "Asus L8400B", {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+ DMI_MATCH(DMI_PRODUCT_NAME,"L8400B series Notebook PC")},
+ (void *)1},
{},
};
@@ -872,12 +880,14 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
return(acpi_idle_enter_c1(dev, state));
local_irq_disable();
- current_thread_info()->status &= ~TS_POLLING;
- /*
- * TS_POLLING-cleared state must be visible before we test
- * NEED_RESCHED:
- */
- smp_mb();
+ if (cx->entry_method != ACPI_CSTATE_FFH) {
+ current_thread_info()->status &= ~TS_POLLING;
+ /*
+ * TS_POLLING-cleared state must be visible before we test
+ * NEED_RESCHED:
+ */
+ smp_mb();
+ }
if (unlikely(need_resched())) {
current_thread_info()->status |= TS_POLLING;
@@ -957,12 +967,14 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
}
local_irq_disable();
- current_thread_info()->status &= ~TS_POLLING;
- /*
- * TS_POLLING-cleared state must be visible before we test
- * NEED_RESCHED:
- */
- smp_mb();
+ if (cx->entry_method != ACPI_CSTATE_FFH) {
+ current_thread_info()->status &= ~TS_POLLING;
+ /*
+ * TS_POLLING-cleared state must be visible before we test
+ * NEED_RESCHED:
+ */
+ smp_mb();
+ }
if (unlikely(need_resched())) {
current_thread_info()->status |= TS_POLLING;
diff --git a/drivers/acpi/processor_pdc.c b/drivers/acpi/processor_pdc.c
index 7247819dbd8..e306ba9aa34 100644
--- a/drivers/acpi/processor_pdc.c
+++ b/drivers/acpi/processor_pdc.c
@@ -125,6 +125,8 @@ acpi_processor_eval_pdc(acpi_handle handle, struct acpi_object_list *pdc_in)
return status;
}
+static int early_pdc_done;
+
void acpi_processor_set_pdc(acpi_handle handle)
{
struct acpi_object_list *obj_list;
@@ -132,6 +134,9 @@ void acpi_processor_set_pdc(acpi_handle handle)
if (arch_has_acpi_pdc() == false)
return;
+ if (early_pdc_done)
+ return;
+
obj_list = acpi_processor_alloc_pdc();
if (!obj_list)
return;
@@ -151,6 +156,13 @@ static int set_early_pdc_optin(const struct dmi_system_id *id)
return 0;
}
+static int param_early_pdc_optin(char *s)
+{
+ early_pdc_optin = 1;
+ return 1;
+}
+__setup("acpi_early_pdc_eval", param_early_pdc_optin);
+
static struct dmi_system_id __cpuinitdata early_pdc_optin_table[] = {
{
set_early_pdc_optin, "HP Envy", {
@@ -192,4 +204,6 @@ void __init acpi_early_processor_set_pdc(void)
acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
ACPI_UINT32_MAX,
early_init_pdc, NULL, NULL, NULL);
+
+ early_pdc_done = 1;
}
diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c
index 2cabadcc4d8..a959f6a0750 100644
--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -413,7 +413,11 @@ static int acpi_processor_get_performance_info(struct acpi_processor *pr)
if (result)
goto update_bios;
- return 0;
+ /* We need to call _PPC once when cpufreq starts */
+ if (ignore_ppc != 1)
+ result = acpi_processor_get_platform_limit(pr);
+
+ return result;
/*
* Having _PPC but missing frequencies (_PSS, _PCT) is a very good hint that
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index ff9f6226085..3e009674f33 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1336,9 +1336,25 @@ static int acpi_bus_scan(acpi_handle handle, struct acpi_bus_ops *ops,
if (child)
*child = device;
- return 0;
+
+ if (device)
+ return 0;
+ else
+ return -ENODEV;
}
+/*
+ * acpi_bus_add and acpi_bus_start
+ *
+ * scan a given ACPI tree and (probably recently hot-plugged)
+ * create and add or starts found devices.
+ *
+ * If no devices were found -ENODEV is returned which does not
+ * mean that this is a real error, there just have been no suitable
+ * ACPI objects in the table trunk from which the kernel could create
+ * a device and add/start an appropriate driver.
+ */
+
int
acpi_bus_add(struct acpi_device **child,
struct acpi_device *parent, acpi_handle handle, int type)
@@ -1348,8 +1364,7 @@ acpi_bus_add(struct acpi_device **child,
memset(&ops, 0, sizeof(ops));
ops.acpi_op_add = 1;
- acpi_bus_scan(handle, &ops, child);
- return 0;
+ return acpi_bus_scan(handle, &ops, child);
}
EXPORT_SYMBOL(acpi_bus_add);
@@ -1357,11 +1372,13 @@ int acpi_bus_start(struct acpi_device *device)
{
struct acpi_bus_ops ops;
+ if (!device)
+ return -EINVAL;
+
memset(&ops, 0, sizeof(ops));
ops.acpi_op_start = 1;
- acpi_bus_scan(device->handle, &ops, NULL);
- return 0;
+ return acpi_bus_scan(device->handle, &ops, NULL);
}
EXPORT_SYMBOL(acpi_bus_start);
diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c
index f336bca7c45..8a0ed2800e6 100644
--- a/drivers/acpi/tables.c
+++ b/drivers/acpi/tables.c
@@ -213,7 +213,7 @@ acpi_table_parse_entries(char *id,
unsigned long table_end;
acpi_size tbl_size;
- if (acpi_disabled)
+ if (acpi_disabled && !acpi_ht)
return -ENODEV;
if (!handler)
@@ -280,7 +280,7 @@ int __init acpi_table_parse(char *id, acpi_table_handler handler)
struct acpi_table_header *table = NULL;
acpi_size tbl_size;
- if (acpi_disabled)
+ if (acpi_disabled && !acpi_ht)
return -ENODEV;
if (!handler)
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index b34390347c1..a6a736a7dbf 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -3082,8 +3082,16 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
ahci_save_initial_config(pdev, hpriv);
/* prepare host */
- if (hpriv->cap & HOST_CAP_NCQ)
- pi.flags |= ATA_FLAG_NCQ | ATA_FLAG_FPDMA_AA;
+ if (hpriv->cap & HOST_CAP_NCQ) {
+ pi.flags |= ATA_FLAG_NCQ;
+ /* Auto-activate optimization is supposed to be supported on
+ all AHCI controllers indicating NCQ support, but it seems
+ to be broken at least on some NVIDIA MCP79 chipsets.
+ Until we get info on which NVIDIA chipsets don't have this
+ issue, if any, disable AA on all NVIDIA AHCIs. */
+ if (pdev->vendor != PCI_VENDOR_ID_NVIDIA)
+ pi.flags |= ATA_FLAG_FPDMA_AA;
+ }
if (hpriv->cap & HOST_CAP_PMP)
pi.flags |= ATA_FLAG_PMP;
diff --git a/drivers/base/class.c b/drivers/base/class.c
index 161746deab4..6e2c3b064f5 100644
--- a/drivers/base/class.c
+++ b/drivers/base/class.c
@@ -59,6 +59,8 @@ static void class_release(struct kobject *kobj)
else
pr_debug("class '%s' does not have a release() function, "
"be careful\n", class->name);
+
+ kfree(cp);
}
static struct sysfs_ops class_sysfs_ops = {
diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 51042f0ba7e..7eff828b211 100644
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -243,10 +243,12 @@ static int index_to_minor(int index)
static int __devinit virtblk_probe(struct virtio_device *vdev)
{
struct virtio_blk *vblk;
+ struct request_queue *q;
int err;
u64 cap;
- u32 v;
- u32 blk_size, sg_elems;
+ u32 v, blk_size, sg_elems, opt_io_size;
+ u16 min_io_size;
+ u8 physical_block_exp, alignment_offset;
if (index_to_minor(index) >= 1 << MINORBITS)
return -ENOSPC;
@@ -293,13 +295,13 @@ static int __devinit virtblk_probe(struct virtio_device *vdev)
goto out_mempool;
}
- vblk->disk->queue = blk_init_queue(do_virtblk_request, &vblk->lock);
- if (!vblk->disk->queue) {
+ q = vblk->disk->queue = blk_init_queue(do_virtblk_request, &vblk->lock);
+ if (!q) {
err = -ENOMEM;
goto out_put_disk;
}
- vblk->disk->queue->queuedata = vblk;
+ q->queuedata = vblk;
if (index < 26) {
sprintf(vblk->disk->disk_name, "vd%c", 'a' + index % 26);
@@ -323,10 +325,10 @@ static int __devinit virtblk_probe(struct virtio_device *vdev)
/* If barriers are supported, tell block layer that queue is ordered */
if (virtio_has_feature(vdev, VIRTIO_BLK_F_FLUSH))
- blk_queue_ordered(vblk->disk->queue, QUEUE_ORDERED_DRAIN_FLUSH,
+ blk_queue_ordered(q, QUEUE_ORDERED_DRAIN_FLUSH,
virtblk_prepare_flush);
else if (virtio_has_feature(vdev, VIRTIO_BLK_F_BARRIER))
- blk_queue_ordered(vblk->disk->queue, QUEUE_ORDERED_TAG, NULL);
+ blk_queue_ordered(q, QUEUE_ORDERED_TAG, NULL);
/* If disk is read-only in the host, the guest should obey */
if (virtio_has_feature(vdev, VIRTIO_BLK_F_RO))
@@ -345,14 +347,14 @@ static int __devinit virtblk_probe(struct virtio_device *vdev)
set_capacity(vblk->disk, cap);
/* We can handle whatever the host told us to handle. */
- blk_queue_max_phys_segments(vblk->disk->queue, vblk->sg_elems-2);
- blk_queue_max_hw_segments(vblk->disk->queue, vblk->sg_elems-2);
+ blk_queue_max_phys_segments(q, vblk->sg_elems-2);
+ blk_queue_max_hw_segments(q, vblk->sg_elems-2);
/* No need to bounce any requests */
- blk_queue_bounce_limit(vblk->disk->queue, BLK_BOUNCE_ANY);
+ blk_queue_bounce_limit(q, BLK_BOUNCE_ANY);
/* No real sector limit. */
- blk_queue_max_sectors(vblk->disk->queue, -1U);
+ blk_queue_max_sectors(q, -1U);
/* Host can optionally specify maximum segment size and number of
* segments. */
@@ -360,16 +362,45 @@ static int __devinit virtblk_probe(struct virtio_device *vdev)
offsetof(struct virtio_blk_config, size_max),
&v);
if (!err)
- blk_queue_max_segment_size(vblk->disk->queue, v);
+ blk_queue_max_segment_size(q, v);
else
- blk_queue_max_segment_size(vblk->disk->queue, -1U);
+ blk_queue_max_segment_size(q, -1U);
/* Host can optionally specify the block size of the device */
err = virtio_config_val(vdev, VIRTIO_BLK_F_BLK_SIZE,
offsetof(struct virtio_blk_config, blk_size),
&blk_size);
if (!err)
- blk_queue_logical_block_size(vblk->disk->queue, blk_size);
+ blk_queue_logical_block_size(q, blk_size);
+ else
+ blk_size = queue_logical_block_size(q);
+
+ /* Use topology information if available */
+ err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+ offsetof(struct virtio_blk_config, physical_block_exp),
+ &physical_block_exp);
+ if (!err && physical_block_exp)
+ blk_queue_physical_block_size(q,
+ blk_size * (1 << physical_block_exp));
+
+ err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+ offsetof(struct virtio_blk_config, alignment_offset),
+ &alignment_offset);
+ if (!err && alignment_offset)
+ blk_queue_alignment_offset(q, blk_size * alignment_offset);
+
+ err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+ offsetof(struct virtio_blk_config, min_io_size),
+ &min_io_size);
+ if (!err && min_io_size)
+ blk_queue_io_min(q, blk_size * min_io_size);
+
+ err = virtio_config_val(vdev, VIRTIO_BLK_F_TOPOLOGY,
+ offsetof(struct virtio_blk_config, opt_io_size),
+ &opt_io_size);
+ if (!err && opt_io_size)
+ blk_queue_io_opt(q, blk_size * opt_io_size);
+
add_disk(vblk->disk);
return 0;
@@ -412,7 +443,7 @@ static struct virtio_device_id id_table[] = {
static unsigned int features[] = {
VIRTIO_BLK_F_BARRIER, VIRTIO_BLK_F_SEG_MAX, VIRTIO_BLK_F_SIZE_MAX,
VIRTIO_BLK_F_GEOMETRY, VIRTIO_BLK_F_RO, VIRTIO_BLK_F_BLK_SIZE,
- VIRTIO_BLK_F_SCSI, VIRTIO_BLK_F_FLUSH
+ VIRTIO_BLK_F_SCSI, VIRTIO_BLK_F_FLUSH, VIRTIO_BLK_F_TOPOLOGY
};
/*
diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
index e023682be2c..3141dd3b6e5 100644
--- a/drivers/char/Kconfig
+++ b/drivers/char/Kconfig
@@ -666,6 +666,14 @@ config VIRTIO_CONSOLE
help
Virtio console for use with lguest and other hypervisors.
+ Also serves as a general-purpose serial device for data
+ transfer between the guest and host. Character devices at
+ /dev/vportNpn will be created when corresponding ports are
+ found, where N is the device number and n is the port number
+ within that device. If specified by the host, a sysfs
+ attribute called 'name' will be populated with a name for
+ the port which can be used by udev scripts to create a
+ symlink to the device.
config HVCS
tristate "IBM Hypervisor Virtual Console Server support"
diff --git a/drivers/char/hvc_beat.c b/drivers/char/hvc_beat.c
index 6913fc33270..5fe4631e2a6 100644
--- a/drivers/char/hvc_beat.c
+++ b/drivers/char/hvc_beat.c
@@ -99,7 +99,7 @@ static int hvc_beat_config(char *p)
static int __init hvc_beat_console_init(void)
{
- if (hvc_beat_useit && machine_is_compatible("Beat")) {
+ if (hvc_beat_useit && of_machine_is_compatible("Beat")) {
hvc_instantiate(0, 0, &hvc_beat_get_put_ops);
}
return 0;
diff --git a/drivers/char/virtio_console.c b/drivers/char/virtio_console.c
index a035ae39a35..213373b5f17 100644
--- a/drivers/char/virtio_console.c
+++ b/drivers/char/virtio_console.c
@@ -1,18 +1,6 @@
-/*D:300
- * The Guest console driver
- *
- * Writing console drivers is one of the few remaining Dark Arts in Linux.
- * Fortunately for us, the path of virtual consoles has been well-trodden by
- * the PowerPC folks, who wrote "hvc_console.c" to generically support any
- * virtual console. We use that infrastructure which only requires us to write
- * the basic put_chars and get_chars functions and call the right register
- * functions.
- :*/
-
-/*M:002 The console can be flooded: while the Guest is processing input the
- * Host can send more. Buffering in the Host could alleviate this, but it is a
- * difficult problem in general. :*/
-/* Copyright (C) 2006, 2007 Rusty Russell, IBM Corporation
+/*
+ * Copyright (C) 2006, 2007, 2009 Rusty Russell, IBM Corporation
+ * Copyright (C) 2009, 2010 Red Hat, Inc.
*
* 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
@@ -28,142 +16,694 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
+#include <linux/cdev.h>
+#include <linux/debugfs.h>
+#include <linux/device.h>
#include <linux/err.h>
+#include <linux/fs.h>
#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/poll.h>
+#include <linux/sched.h>
+#include <linux/spinlock.h>
#include <linux/virtio.h>
#include <linux/virtio_console.h>
+#include <linux/wait.h>
+#include <linux/workqueue.h>
#include "hvc_console.h"
-/*D:340 These represent our input and output console queues, and the virtio
- * operations for them. */
-static struct virtqueue *in_vq, *out_vq;
-static struct virtio_device *vdev;
+/*
+ * This is a global struct for storing common data for all the devices
+ * this driver handles.
+ *
+ * Mainly, it has a linked list for all the consoles in one place so
+ * that callbacks from hvc for get_chars(), put_chars() work properly
+ * across multiple devices and multiple ports per device.
+ */
+struct ports_driver_data {
+ /* Used for registering chardevs */
+ struct class *class;
+
+ /* Used for exporting per-port information to debugfs */
+ struct dentry *debugfs_dir;
+
+ /* Number of devices this driver is handling */
+ unsigned int index;
+
+ /*
+ * This is used to keep track of the number of hvc consoles
+ * spawned by this driver. This number is given as the first
+ * argument to hvc_alloc(). To correctly map an initial
+ * console spawned via hvc_instantiate to the console being
+ * hooked up via hvc_alloc, we need to pass the same vtermno.
+ *
+ * We also just assume the first console being initialised was
+ * the first one that got used as the initial console.
+ */
+ unsigned int next_vtermno;
+
+ /* All the console devices handled by this driver */
+ struct list_head consoles;
+};
+static struct ports_driver_data pdrvdata;
+
+DEFINE_SPINLOCK(pdrvdata_lock);
+
+/* This struct holds information that's relevant only for console ports */
+struct console {
+ /* We'll place all consoles in a list in the pdrvdata struct */
+ struct list_head list;
+
+ /* The hvc device associated with this console port */
+ struct hvc_struct *hvc;
+
+ /*
+ * This number identifies the number that we used to register
+ * with hvc in hvc_instantiate() and hvc_alloc(); this is the
+ * number passed on by the hvc callbacks to us to
+ * differentiate between the other console ports handled by
+ * this driver
+ */
+ u32 vtermno;
+};
+
+struct port_buffer {
+ char *buf;
+
+ /* size of the buffer in *buf above */
+ size_t size;
+
+ /* used length of the buffer */
+ size_t len;
+ /* offset in the buf from which to consume data */
+ size_t offset;
+};
+
+/*
+ * This is a per-device struct that stores data common to all the
+ * ports for that device (vdev->priv).
+ */
+struct ports_device {
+ /*
+ * Workqueue handlers where we process deferred work after
+ * notification
+ */
+ struct work_struct control_work;
+ struct work_struct config_work;
+
+ struct list_head ports;
+
+ /* To protect the list of ports */
+ spinlock_t ports_lock;
+
+ /* To protect the vq operations for the control channel */
+ spinlock_t cvq_lock;
+
+ /* The current config space is stored here */
+ struct virtio_console_config config;
+
+ /* The virtio device we're associated with */
+ struct virtio_device *vdev;
+
+ /*
+ * A couple of virtqueues for the control channel: one for
+ * guest->host transfers, one for host->guest transfers
+ */
+ struct virtqueue *c_ivq, *c_ovq;
+
+ /* Array of per-port IO virtqueues */
+ struct virtqueue **in_vqs, **out_vqs;
+
+ /* Used for numbering devices for sysfs and debugfs */
+ unsigned int drv_index;
+
+ /* Major number for this device. Ports will be created as minors. */
+ int chr_major;
+};
+
+/* This struct holds the per-port data */
+struct port {
+ /* Next port in the list, head is in the ports_device */
+ struct list_head list;
+
+ /* Pointer to the parent virtio_console device */
+ struct ports_device *portdev;
+
+ /* The current buffer from which data has to be fed to readers */
+ struct port_buffer *inbuf;
+
+ /*
+ * To protect the operations on the in_vq associated with this
+ * port. Has to be a spinlock because it can be called from
+ * interrupt context (get_char()).
+ */
+ spinlock_t inbuf_lock;
+
+ /* The IO vqs for this port */
+ struct virtqueue *in_vq, *out_vq;
+
+ /* File in the debugfs directory that exposes this port's information */
+ struct dentry *debugfs_file;
+
+ /*
+ * The entries in this struct will be valid if this port is
+ * hooked up to an hvc console
+ */
+ struct console cons;
+
+ /* Each port associates with a separate char device */
+ struct cdev cdev;
+ struct device *dev;
+
+ /* A waitqueue for poll() or blocking read operations */
+ wait_queue_head_t waitqueue;
+
+ /* The 'name' of the port that we expose via sysfs properties */
+ char *name;
+
+ /* The 'id' to identify the port with the Host */
+ u32 id;
+
+ /* Is the host device open */
+ bool host_connected;
+
+ /* We should allow only one process to open a port */
+ bool guest_connected;
+};
+
+/* This is the very early arch-specified put chars function. */
+static int (*early_put_chars)(u32, const char *, int);
+
+static struct port *find_port_by_vtermno(u32 vtermno)
+{
+ struct port *port;
+ struct console *cons;
+ unsigned long flags;
+
+ spin_lock_irqsave(&pdrvdata_lock, flags);
+ list_for_each_entry(cons, &pdrvdata.consoles, list) {
+ if (cons->vtermno == vtermno) {
+ port = container_of(cons, struct port, cons);
+ goto out;
+ }
+ }
+ port = NULL;
+out:
+ spin_unlock_irqrestore(&pdrvdata_lock, flags);
+ return port;
+}
+
+static struct port *find_port_by_id(struct ports_device *portdev, u32 id)
+{
+ struct port *port;
+ unsigned long flags;
+
+ spin_lock_irqsave(&portdev->ports_lock, flags);
+ list_for_each_entry(port, &portdev->ports, list)
+ if (port->id == id)
+ goto out;
+ port = NULL;
+out:
+ spin_unlock_irqrestore(&portdev->ports_lock, flags);
+
+ return port;
+}
+
+static struct port *find_port_by_vq(struct ports_device *portdev,
+ struct virtqueue *vq)
+{
+ struct port *port;
+ unsigned long flags;
+
+ spin_lock_irqsave(&portdev->ports_lock, flags);
+ list_for_each_entry(port, &portdev->ports, list)
+ if (port->in_vq == vq || port->out_vq == vq)
+ goto out;
+ port = NULL;
+out:
+ spin_unlock_irqrestore(&portdev->ports_lock, flags);
+ return port;
+}
+
+static bool is_console_port(struct port *port)
+{
+ if (port->cons.hvc)
+ return true;
+ return false;
+}
+
+static inline bool use_multiport(struct ports_device *portdev)
+{
+ /*
+ * This condition can be true when put_chars is called from
+ * early_init
+ */
+ if (!portdev->vdev)
+ return 0;
+ return portdev->vdev->features[0] & (1 << VIRTIO_CONSOLE_F_MULTIPORT);
+}
-/* This is our input buffer, and how much data is left in it. */
-static unsigned int in_len;
-static char *in, *inbuf;
+static void free_buf(struct port_buffer *buf)
+{
+ kfree(buf->buf);
+ kfree(buf);
+}
+
+static struct port_buffer *alloc_buf(size_t buf_size)
+{
+ struct port_buffer *buf;
-/* The operations for our console. */
-static struct hv_ops virtio_cons;
+ buf = kmalloc(sizeof(*buf), GFP_KERNEL);
+ if (!buf)
+ goto fail;
+ buf->buf = kzalloc(buf_size, GFP_KERNEL);
+ if (!buf->buf)
+ goto free_buf;
+ buf->len = 0;
+ buf->offset = 0;
+ buf->size = buf_size;
+ return buf;
+
+free_buf:
+ kfree(buf);
+fail:
+ return NULL;
+}
+
+/* Callers should take appropriate locks */
+static void *get_inbuf(struct port *port)
+{
+ struct port_buffer *buf;
+ struct virtqueue *vq;
+ unsigned int len;
-/* The hvc device */
-static struct hvc_struct *hvc;
+ vq = port->in_vq;
+ buf = vq->vq_ops->get_buf(vq, &len);
+ if (buf) {
+ buf->len = len;
+ buf->offset = 0;
+ }
+ return buf;
+}
-/*D:310 The put_chars() callback is pretty straightforward.
+/*
+ * Create a scatter-gather list representing our input buffer and put
+ * it in the queue.
*
- * We turn the characters into a scatter-gather list, add it to the output
- * queue and then kick the Host. Then we sit here waiting for it to finish:
- * inefficient in theory, but in practice implementations will do it
- * immediately (lguest's Launcher does). */
-static int put_chars(u32 vtermno, const char *buf, int count)
+ * Callers should take appropriate locks.
+ */
+static int add_inbuf(struct virtqueue *vq, struct port_buffer *buf)
{
struct scatterlist sg[1];
+ int ret;
+
+ sg_init_one(sg, buf->buf, buf->size);
+
+ ret = vq->vq_ops->add_buf(vq, sg, 0, 1, buf);
+ vq->vq_ops->kick(vq);
+ return ret;
+}
+
+/* Discard any unread data this port has. Callers lockers. */
+static void discard_port_data(struct port *port)
+{
+ struct port_buffer *buf;
+ struct virtqueue *vq;
unsigned int len;
+ int ret;
- /* This is a convenient routine to initialize a single-elem sg list */
- sg_init_one(sg, buf, count);
+ vq = port->in_vq;
+ if (port->inbuf)
+ buf = port->inbuf;
+ else
+ buf = vq->vq_ops->get_buf(vq, &len);
- /* add_buf wants a token to identify this buffer: we hand it any
- * non-NULL pointer, since there's only ever one buffer. */
- if (out_vq->vq_ops->add_buf(out_vq, sg, 1, 0, (void *)1) >= 0) {
- /* Tell Host to go! */
- out_vq->vq_ops->kick(out_vq);
- /* Chill out until it's done with the buffer. */
- while (!out_vq->vq_ops->get_buf(out_vq, &len))
- cpu_relax();
+ ret = 0;
+ while (buf) {
+ if (add_inbuf(vq, buf) < 0) {
+ ret++;
+ free_buf(buf);
+ }
+ buf = vq->vq_ops->get_buf(vq, &len);
}
+ port->inbuf = NULL;
+ if (ret)
+ dev_warn(port->dev, "Errors adding %d buffers back to vq\n",
+ ret);
+}
- /* We're expected to return the amount of data we wrote: all of it. */
- return count;
+static bool port_has_data(struct port *port)
+{
+ unsigned long flags;
+ bool ret;
+
+ spin_lock_irqsave(&port->inbuf_lock, flags);
+ if (port->inbuf) {
+ ret = true;
+ goto out;
+ }
+ port->inbuf = get_inbuf(port);
+ if (port->inbuf) {
+ ret = true;
+ goto out;
+ }
+ ret = false;
+out:
+ spin_unlock_irqrestore(&port->inbuf_lock, flags);
+ return ret;
}
-/* Create a scatter-gather list representing our input buffer and put it in the
- * queue. */
-static void add_inbuf(void)
+static ssize_t send_control_msg(struct port *port, unsigned int event,
+ unsigned int value)
{
struct scatterlist sg[1];
- sg_init_one(sg, inbuf, PAGE_SIZE);
+ struct virtio_console_control cpkt;
+ struct virtqueue *vq;
+ int len;
+
+ if (!use_multiport(port->portdev))
+ return 0;
+
+ cpkt.id = port->id;
+ cpkt.event = event;
+ cpkt.value = value;
+
+ vq = port->portdev->c_ovq;
- /* We should always be able to add one buffer to an empty queue. */
- if (in_vq->vq_ops->add_buf(in_vq, sg, 0, 1, inbuf) < 0)
- BUG();
- in_vq->vq_ops->kick(in_vq);
+ sg_init_one(sg, &cpkt, sizeof(cpkt));
+ if (vq->vq_ops->add_buf(vq, sg, 1, 0, &cpkt) >= 0) {
+ vq->vq_ops->kick(vq);
+ while (!vq->vq_ops->get_buf(vq, &len))
+ cpu_relax();
+ }
+ return 0;
}
-/*D:350 get_chars() is the callback from the hvc_console infrastructure when
- * an interrupt is received.
- *
- * Most of the code deals with the fact that the hvc_console() infrastructure
- * only asks us for 16 bytes at a time. We keep in_offset and in_used fields
- * for partially-filled buffers. */
-static int get_chars(u32 vtermno, char *buf, int count)
+static ssize_t send_buf(struct port *port, void *in_buf, size_t in_count)
{
- /* If we don't have an input queue yet, we can't get input. */
- BUG_ON(!in_vq);
+ struct scatterlist sg[1];
+ struct virtqueue *out_vq;
+ ssize_t ret;
+ unsigned int len;
+
+ out_vq = port->out_vq;
+
+ sg_init_one(sg, in_buf, in_count);
+ ret = out_vq->vq_ops->add_buf(out_vq, sg, 1, 0, in_buf);
+
+ /* Tell Host to go! */
+ out_vq->vq_ops->kick(out_vq);
+
+ if (ret < 0) {
+ len = 0;
+ goto fail;
+ }
+
+ /*
+ * Wait till the host acknowledges it pushed out the data we
+ * sent. Also ensure we return to userspace the number of
+ * bytes that were successfully consumed by the host.
+ */
+ while (!out_vq->vq_ops->get_buf(out_vq, &len))
+ cpu_relax();
+fail:
+ /* We're expected to return the amount of data we wrote */
+ return len;
+}
+
+/*
+ * Give out the data that's requested from the buffer that we have
+ * queued up.
+ */
+static ssize_t fill_readbuf(struct port *port, char *out_buf, size_t out_count,
+ bool to_user)
+{
+ struct port_buffer *buf;
+ unsigned long flags;
+
+ if (!out_count || !port_has_data(port))
+ return 0;
+
+ buf = port->inbuf;
+ out_count = min(out_count, buf->len - buf->offset);
+
+ if (to_user) {
+ ssize_t ret;
+
+ ret = copy_to_user(out_buf, buf->buf + buf->offset, out_count);
+ if (ret)
+ return -EFAULT;
+ } else {
+ memcpy(out_buf, buf->buf + buf->offset, out_count);
+ }
+
+ buf->offset += out_count;
+
+ if (buf->offset == buf->len) {
+ /*
+ * We're done using all the data in this buffer.
+ * Re-queue so that the Host can send us more data.
+ */
+ spin_lock_irqsave(&port->inbuf_lock, flags);
+ port->inbuf = NULL;
+
+ if (add_inbuf(port->in_vq, buf) < 0)
+ dev_warn(port->dev, "failed add_buf\n");
+
+ spin_unlock_irqrestore(&port->inbuf_lock, flags);
+ }
+ /* Return the number of bytes actually copied */
+ return out_count;
+}
- /* No buffer? Try to get one. */
- if (!in_len) {
- in = in_vq->vq_ops->get_buf(in_vq, &in_len);
- if (!in)
+/* The condition that must be true for polling to end */
+static bool wait_is_over(struct port *port)
+{
+ return port_has_data(port) || !port->host_connected;
+}
+
+static ssize_t port_fops_read(struct file *filp, char __user *ubuf,
+ size_t count, loff_t *offp)
+{
+ struct port *port;
+ ssize_t ret;
+
+ port = filp->private_data;
+
+ if (!port_has_data(port)) {
+ /*
+ * If nothing's connected on the host just return 0 in
+ * case of list_empty; this tells the userspace app
+ * that there's no connection
+ */
+ if (!port->host_connected)
return 0;
+ if (filp->f_flags & O_NONBLOCK)
+ return -EAGAIN;
+
+ ret = wait_event_interruptible(port->waitqueue,
+ wait_is_over(port));
+ if (ret < 0)
+ return ret;
+ }
+ /*
+ * We could've received a disconnection message while we were
+ * waiting for more data.
+ *
+ * This check is not clubbed in the if() statement above as we
+ * might receive some data as well as the host could get
+ * disconnected after we got woken up from our wait. So we
+ * really want to give off whatever data we have and only then
+ * check for host_connected.
+ */
+ if (!port_has_data(port) && !port->host_connected)
+ return 0;
+
+ return fill_readbuf(port, ubuf, count, true);
+}
+
+static ssize_t port_fops_write(struct file *filp, const char __user *ubuf,
+ size_t count, loff_t *offp)
+{
+ struct port *port;
+ char *buf;
+ ssize_t ret;
+
+ port = filp->private_data;
+
+ count = min((size_t)(32 * 1024), count);
+
+ buf = kmalloc(count, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ ret = copy_from_user(buf, ubuf, count);
+ if (ret) {
+ ret = -EFAULT;
+ goto free_buf;
}
- /* You want more than we have to give? Well, try wanting less! */
- if (in_len < count)
- count = in_len;
+ ret = send_buf(port, buf, count);
+free_buf:
+ kfree(buf);
+ return ret;
+}
+
+static unsigned int port_fops_poll(struct file *filp, poll_table *wait)
+{
+ struct port *port;
+ unsigned int ret;
+
+ port = filp->private_data;
+ poll_wait(filp, &port->waitqueue, wait);
+
+ ret = 0;
+ if (port->inbuf)
+ ret |= POLLIN | POLLRDNORM;
+ if (port->host_connected)
+ ret |= POLLOUT;
+ if (!port->host_connected)
+ ret |= POLLHUP;
+
+ return ret;
+}
+
+static int port_fops_release(struct inode *inode, struct file *filp)
+{
+ struct port *port;
+
+ port = filp->private_data;
+
+ /* Notify host of port being closed */
+ send_control_msg(port, VIRTIO_CONSOLE_PORT_OPEN, 0);
+
+ spin_lock_irq(&port->inbuf_lock);
+ port->guest_connected = false;
+
+ discard_port_data(port);
+
+ spin_unlock_irq(&port->inbuf_lock);
+
+ return 0;
+}
+
+static int port_fops_open(struct inode *inode, struct file *filp)
+{
+ struct cdev *cdev = inode->i_cdev;
+ struct port *port;
+
+ port = container_of(cdev, struct port, cdev);
+ filp->private_data = port;
+
+ /*
+ * Don't allow opening of console port devices -- that's done
+ * via /dev/hvc
+ */
+ if (is_console_port(port))
+ return -ENXIO;
+
+ /* Allow only one process to open a particular port at a time */
+ spin_lock_irq(&port->inbuf_lock);
+ if (port->guest_connected) {
+ spin_unlock_irq(&port->inbuf_lock);
+ return -EMFILE;
+ }
- /* Copy across to their buffer and increment offset. */
- memcpy(buf, in, count);
- in += count;
- in_len -= count;
+ port->guest_connected = true;
+ spin_unlock_irq(&port->inbuf_lock);
- /* Finished? Re-register buffer so Host will use it again. */
- if (in_len == 0)
- add_inbuf();
+ /* Notify host of port being opened */
+ send_control_msg(filp->private_data, VIRTIO_CONSOLE_PORT_OPEN, 1);
- return count;
+ return 0;
}
-/*:*/
-/*D:320 Console drivers are initialized very early so boot messages can go out,
- * so we do things slightly differently from the generic virtio initialization
- * of the net and block drivers.
+/*
+ * The file operations that we support: programs in the guest can open
+ * a console device, read from it, write to it, poll for data and
+ * close it. The devices are at
+ * /dev/vport<device number>p<port number>
+ */
+static const struct file_operations port_fops = {
+ .owner = THIS_MODULE,
+ .open = port_fops_open,
+ .read = port_fops_read,
+ .write = port_fops_write,
+ .poll = port_fops_poll,
+ .release = port_fops_release,
+};
+
+/*
+ * The put_chars() callback is pretty straightforward.
*
- * At this stage, the console is output-only. It's too early to set up a
- * virtqueue, so we let the drivers do some boutique early-output thing. */
-int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int))
+ * We turn the characters into a scatter-gather list, add it to the
+ * output queue and then kick the Host. Then we sit here waiting for
+ * it to finish: inefficient in theory, but in practice
+ * implementations will do it immediately (lguest's Launcher does).
+ */
+static int put_chars(u32 vtermno, const char *buf, int count)
{
- virtio_cons.put_chars = put_chars;
- return hvc_instantiate(0, 0, &virtio_cons);
+ struct port *port;
+
+ port = find_port_by_vtermno(vtermno);
+ if (!port)
+ return 0;
+
+ if (unlikely(early_put_chars))
+ return early_put_chars(vtermno, buf, count);
+
+ return send_buf(port, (void *)buf, count);
}
/*
- * virtio console configuration. This supports:
- * - console resize
+ * get_chars() is the callback from the hvc_console infrastructure
+ * when an interrupt is received.
+ *
+ * We call out to fill_readbuf that gets us the required data from the
+ * buffers that are queued up.
*/
-static void virtcons_apply_config(struct virtio_device *dev)
+static int get_chars(u32 vtermno, char *buf, int count)
{
+ struct port *port;
+
+ port = find_port_by_vtermno(vtermno);
+ if (!port)
+ return 0;
+
+ /* If we don't have an input queue yet, we can't get input. */
+ BUG_ON(!port->in_vq);
+
+ return fill_readbuf(port, buf, count, false);
+}
+
+static void resize_console(struct port *port)
+{
+ struct virtio_device *vdev;
struct winsize ws;
- if (virtio_has_feature(dev, VIRTIO_CONSOLE_F_SIZE)) {
- dev->config->get(dev,
- offsetof(struct virtio_console_config, cols),
- &ws.ws_col, sizeof(u16));
- dev->config->get(dev,
- offsetof(struct virtio_console_config, rows),
- &ws.ws_row, sizeof(u16));
- hvc_resize(hvc, ws);
+ vdev = port->portdev->vdev;
+ if (virtio_has_feature(vdev, VIRTIO_CONSOLE_F_SIZE)) {
+ vdev->config->get(vdev,
+ offsetof(struct virtio_console_config, cols),
+ &ws.ws_col, sizeof(u16));
+ vdev->config->get(vdev,
+ offsetof(struct virtio_console_config, rows),
+ &ws.ws_row, sizeof(u16));
+ hvc_resize(port->cons.hvc, ws);
}
}
-/*
- * we support only one console, the hvc struct is a global var
- * We set the configuration at this point, since we now have a tty
- */
+/* We set the configuration at this point, since we now have a tty */
static int notifier_add_vio(struct hvc_struct *hp, int data)
{
+ struct port *port;
+
+ port = find_port_by_vtermno(hp->vtermno);
+ if (!port)
+ return -EINVAL;
+
hp->irq_requested = 1;
- virtcons_apply_config(vdev);
+ resize_console(port);
return 0;
}
@@ -173,79 +713,797 @@ static void notifier_del_vio(struct hvc_struct *hp, int data)
hp->irq_requested = 0;
}
-static void hvc_handle_input(struct virtqueue *vq)
+/* The operations for console ports. */
+static const struct hv_ops hv_ops = {
+ .get_chars = get_chars,
+ .put_chars = put_chars,
+ .notifier_add = notifier_add_vio,
+ .notifier_del = notifier_del_vio,
+ .notifier_hangup = notifier_del_vio,
+};
+
+/*
+ * Console drivers are initialized very early so boot messages can go
+ * out, so we do things slightly differently from the generic virtio
+ * initialization of the net and block drivers.
+ *
+ * At this stage, the console is output-only. It's too early to set
+ * up a virtqueue, so we let the drivers do some boutique early-output
+ * thing.
+ */
+int __init virtio_cons_early_init(int (*put_chars)(u32, const char *, int))
{
- if (hvc_poll(hvc))
+ early_put_chars = put_chars;
+ return hvc_instantiate(0, 0, &hv_ops);
+}
+
+int init_port_console(struct port *port)
+{
+ int ret;
+
+ /*
+ * The Host's telling us this port is a console port. Hook it
+ * up with an hvc console.
+ *
+ * To set up and manage our virtual console, we call
+ * hvc_alloc().
+ *
+ * The first argument of hvc_alloc() is the virtual console
+ * number. The second argument is the parameter for the
+ * notification mechanism (like irq number). We currently
+ * leave this as zero, virtqueues have implicit notifications.
+ *
+ * The third argument is a "struct hv_ops" containing the
+ * put_chars() get_chars(), notifier_add() and notifier_del()
+ * pointers. The final argument is the output buffer size: we
+ * can do any size, so we put PAGE_SIZE here.
+ */
+ port->cons.vtermno = pdrvdata.next_vtermno;
+
+ port->cons.hvc = hvc_alloc(port->cons.vtermno, 0, &hv_ops, PAGE_SIZE);
+ if (IS_ERR(port->cons.hvc)) {
+ ret = PTR_ERR(port->cons.hvc);
+ dev_err(port->dev,
+ "error %d allocating hvc for port\n", ret);
+ port->cons.hvc = NULL;
+ return ret;
+ }
+ spin_lock_irq(&pdrvdata_lock);
+ pdrvdata.next_vtermno++;
+ list_add_tail(&port->cons.list, &pdrvdata.consoles);
+ spin_unlock_irq(&pdrvdata_lock);
+ port->guest_connected = true;
+
+ /* Notify host of port being opened */
+ send_control_msg(port, VIRTIO_CONSOLE_PORT_OPEN, 1);
+
+ return 0;
+}
+
+static ssize_t show_port_name(struct device *dev,
+ struct device_attribute *attr, char *buffer)
+{
+ struct port *port;
+
+ port = dev_get_drvdata(dev);
+
+ return sprintf(buffer, "%s\n", port->name);
+}
+
+static DEVICE_ATTR(name, S_IRUGO, show_port_name, NULL);
+
+static struct attribute *port_sysfs_entries[] = {
+ &dev_attr_name.attr,
+ NULL
+};
+
+static struct attribute_group port_attribute_group = {
+ .name = NULL, /* put in device directory */
+ .attrs = port_sysfs_entries,
+};
+
+static int debugfs_open(struct inode *inode, struct file *filp)
+{
+ filp->private_data = inode->i_private;
+ return 0;
+}
+
+static ssize_t debugfs_read(struct file *filp, char __user *ubuf,
+ size_t count, loff_t *offp)
+{
+ struct port *port;
+ char *buf;
+ ssize_t ret, out_offset, out_count;
+
+ out_count = 1024;
+ buf = kmalloc(out_count, GFP_KERNEL);
+ if (!buf)
+ return -ENOMEM;
+
+ port = filp->private_data;
+ out_offset = 0;
+ out_offset += snprintf(buf + out_offset, out_count,
+ "name: %s\n", port->name ? port->name : "");
+ out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ "guest_connected: %d\n", port->guest_connected);
+ out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ "host_connected: %d\n", port->host_connected);
+ out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ "is_console: %s\n",
+ is_console_port(port) ? "yes" : "no");
+ out_offset += snprintf(buf + out_offset, out_count - out_offset,
+ "console_vtermno: %u\n", port->cons.vtermno);
+
+ ret = simple_read_from_buffer(ubuf, count, offp, buf, out_offset);
+ kfree(buf);
+ return ret;
+}
+
+static const struct file_operations port_debugfs_ops = {
+ .owner = THIS_MODULE,
+ .open = debugfs_open,
+ .read = debugfs_read,
+};
+
+/* Remove all port-specific data. */
+static int remove_port(struct port *port)
+{
+ struct port_buffer *buf;
+
+ spin_lock_irq(&port->portdev->ports_lock);
+ list_del(&port->list);
+ spin_unlock_irq(&port->portdev->ports_lock);
+
+ if (is_console_port(port)) {
+ spin_lock_irq(&pdrvdata_lock);
+ list_del(&port->cons.list);
+ spin_unlock_irq(&pdrvdata_lock);
+ hvc_remove(port->cons.hvc);
+ }
+ if (port->guest_connected)
+ send_control_msg(port, VIRTIO_CONSOLE_PORT_OPEN, 0);
+
+ sysfs_remove_group(&port->dev->kobj, &port_attribute_group);
+ device_destroy(pdrvdata.class, port->dev->devt);
+ cdev_del(&port->cdev);
+
+ /* Remove unused data this port might have received. */
+ discard_port_data(port);
+
+ /* Remove buffers we queued up for the Host to send us data in. */
+ while ((buf = port->in_vq->vq_ops->detach_unused_buf(port->in_vq)))
+ free_buf(buf);
+
+ kfree(port->name);
+
+ debugfs_remove(port->debugfs_file);
+
+ kfree(port);
+ return 0;
+}
+
+/* Any private messages that the Host and Guest want to share */
+static void handle_control_message(struct ports_device *portdev,
+ struct port_buffer *buf)
+{
+ struct virtio_console_control *cpkt;
+ struct port *port;
+ size_t name_size;
+ int err;
+
+ cpkt = (struct virtio_console_control *)(buf->buf + buf->offset);
+
+ port = find_port_by_id(portdev, cpkt->id);
+ if (!port) {
+ /* No valid header at start of buffer. Drop it. */
+ dev_dbg(&portdev->vdev->dev,
+ "Invalid index %u in control packet\n", cpkt->id);
+ return;
+ }
+
+ switch (cpkt->event) {
+ case VIRTIO_CONSOLE_CONSOLE_PORT:
+ if (!cpkt->value)
+ break;
+ if (is_console_port(port))
+ break;
+
+ init_port_console(port);
+ /*
+ * Could remove the port here in case init fails - but
+ * have to notify the host first.
+ */
+ break;
+ case VIRTIO_CONSOLE_RESIZE:
+ if (!is_console_port(port))
+ break;
+ port->cons.hvc->irq_requested = 1;
+ resize_console(port);
+ break;
+ case VIRTIO_CONSOLE_PORT_OPEN:
+ port->host_connected = cpkt->value;
+ wake_up_interruptible(&port->waitqueue);
+ break;
+ case VIRTIO_CONSOLE_PORT_NAME:
+ /*
+ * Skip the size of the header and the cpkt to get the size
+ * of the name that was sent
+ */
+ name_size = buf->len - buf->offset - sizeof(*cpkt) + 1;
+
+ port->name = kmalloc(name_size, GFP_KERNEL);
+ if (!port->name) {
+ dev_err(port->dev,
+ "Not enough space to store port name\n");
+ break;
+ }
+ strncpy(port->name, buf->buf + buf->offset + sizeof(*cpkt),
+ name_size - 1);
+ port->name[name_size - 1] = 0;
+
+ /*
+ * Since we only have one sysfs attribute, 'name',
+ * create it only if we have a name for the port.
+ */
+ err = sysfs_create_group(&port->dev->kobj,
+ &port_attribute_group);
+ if (err)
+ dev_err(port->dev,
+ "Error %d creating sysfs device attributes\n",
+ err);
+
+ break;
+ case VIRTIO_CONSOLE_PORT_REMOVE:
+ /*
+ * Hot unplug the port. We don't decrement nr_ports
+ * since we don't want to deal with extra complexities
+ * of using the lowest-available port id: We can just
+ * pick up the nr_ports number as the id and not have
+ * userspace send it to us. This helps us in two
+ * ways:
+ *
+ * - We don't need to have a 'port_id' field in the
+ * config space when a port is hot-added. This is a
+ * good thing as we might queue up multiple hotplug
+ * requests issued in our workqueue.
+ *
+ * - Another way to deal with this would have been to
+ * use a bitmap of the active ports and select the
+ * lowest non-active port from that map. That
+ * bloats the already tight config space and we
+ * would end up artificially limiting the
+ * max. number of ports to sizeof(bitmap). Right
+ * now we can support 2^32 ports (as the port id is
+ * stored in a u32 type).
+ *
+ */
+ remove_port(port);
+ break;
+ }
+}
+
+static void control_work_handler(struct work_struct *work)
+{
+ struct ports_device *portdev;
+ struct virtqueue *vq;
+ struct port_buffer *buf;
+ unsigned int len;
+
+ portdev = container_of(work, struct ports_device, control_work);
+ vq = portdev->c_ivq;
+
+ spin_lock(&portdev->cvq_lock);
+ while ((buf = vq->vq_ops->get_buf(vq, &len))) {
+ spin_unlock(&portdev->cvq_lock);
+
+ buf->len = len;
+ buf->offset = 0;
+
+ handle_control_message(portdev, buf);
+
+ spin_lock(&portdev->cvq_lock);
+ if (add_inbuf(portdev->c_ivq, buf) < 0) {
+ dev_warn(&portdev->vdev->dev,
+ "Error adding buffer to queue\n");
+ free_buf(buf);
+ }
+ }
+ spin_unlock(&portdev->cvq_lock);
+}
+
+static void in_intr(struct virtqueue *vq)
+{
+ struct port *port;
+ unsigned long flags;
+
+ port = find_port_by_vq(vq->vdev->priv, vq);
+ if (!port)
+ return;
+
+ spin_lock_irqsave(&port->inbuf_lock, flags);
+ if (!port->inbuf)
+ port->inbuf = get_inbuf(port);
+
+ /*
+ * Don't queue up data when port is closed. This condition
+ * can be reached when a console port is not yet connected (no
+ * tty is spawned) and the host sends out data to console
+ * ports. For generic serial ports, the host won't
+ * (shouldn't) send data till the guest is connected.
+ */
+ if (!port->guest_connected)
+ discard_port_data(port);
+
+ spin_unlock_irqrestore(&port->inbuf_lock, flags);
+
+ wake_up_interruptible(&port->waitqueue);
+
+ if (is_console_port(port) && hvc_poll(port->cons.hvc))
hvc_kick();
}
-/*D:370 Once we're further in boot, we get probed like any other virtio device.
- * At this stage we set up the output virtqueue.
- *
- * To set up and manage our virtual console, we call hvc_alloc(). Since we
- * never remove the console device we never need this pointer again.
+static void control_intr(struct virtqueue *vq)
+{
+ struct ports_device *portdev;
+
+ portdev = vq->vdev->priv;
+ schedule_work(&portdev->control_work);
+}
+
+static void config_intr(struct virtio_device *vdev)
+{
+ struct ports_device *portdev;
+
+ portdev = vdev->priv;
+ if (use_multiport(portdev)) {
+ /* Handle port hot-add */
+ schedule_work(&portdev->config_work);
+ }
+ /*
+ * We'll use this way of resizing only for legacy support.
+ * For newer userspace (VIRTIO_CONSOLE_F_MULTPORT+), use
+ * control messages to indicate console size changes so that
+ * it can be done per-port
+ */
+ resize_console(find_port_by_id(portdev, 0));
+}
+
+static unsigned int fill_queue(struct virtqueue *vq, spinlock_t *lock)
+{
+ struct port_buffer *buf;
+ unsigned int ret;
+ int err;
+
+ ret = 0;
+ do {
+ buf = alloc_buf(PAGE_SIZE);
+ if (!buf)
+ break;
+
+ spin_lock_irq(lock);
+ err = add_inbuf(vq, buf);
+ if (err < 0) {
+ spin_unlock_irq(lock);
+ free_buf(buf);
+ break;
+ }
+ ret++;
+ spin_unlock_irq(lock);
+ } while (err > 0);
+
+ return ret;
+}
+
+static int add_port(struct ports_device *portdev, u32 id)
+{
+ char debugfs_name[16];
+ struct port *port;
+ struct port_buffer *buf;
+ dev_t devt;
+ int err;
+
+ port = kmalloc(sizeof(*port), GFP_KERNEL);
+ if (!port) {
+ err = -ENOMEM;
+ goto fail;
+ }
+
+ port->portdev = portdev;
+ port->id = id;
+
+ port->name = NULL;
+ port->inbuf = NULL;
+ port->cons.hvc = NULL;
+
+ port->host_connected = port->guest_connected = false;
+
+ port->in_vq = portdev->in_vqs[port->id];
+ port->out_vq = portdev->out_vqs[port->id];
+
+ cdev_init(&port->cdev, &port_fops);
+
+ devt = MKDEV(portdev->chr_major, id);
+ err = cdev_add(&port->cdev, devt, 1);
+ if (err < 0) {
+ dev_err(&port->portdev->vdev->dev,
+ "Error %d adding cdev for port %u\n", err, id);
+ goto free_port;
+ }
+ port->dev = device_create(pdrvdata.class, &port->portdev->vdev->dev,
+ devt, port, "vport%up%u",
+ port->portdev->drv_index, id);
+ if (IS_ERR(port->dev)) {
+ err = PTR_ERR(port->dev);
+ dev_err(&port->portdev->vdev->dev,
+ "Error %d creating device for port %u\n",
+ err, id);
+ goto free_cdev;
+ }
+
+ spin_lock_init(&port->inbuf_lock);
+ init_waitqueue_head(&port->waitqueue);
+
+ /* Fill the in_vq with buffers so the host can send us data. */
+ err = fill_queue(port->in_vq, &port->inbuf_lock);
+ if (!err) {
+ dev_err(port->dev, "Error allocating inbufs\n");
+ err = -ENOMEM;
+ goto free_device;
+ }
+
+ /*
+ * If we're not using multiport support, this has to be a console port
+ */
+ if (!use_multiport(port->portdev)) {
+ err = init_port_console(port);
+ if (err)
+ goto free_inbufs;
+ }
+
+ spin_lock_irq(&portdev->ports_lock);
+ list_add_tail(&port->list, &port->portdev->ports);
+ spin_unlock_irq(&portdev->ports_lock);
+
+ /*
+ * Tell the Host we're set so that it can send us various
+ * configuration parameters for this port (eg, port name,
+ * caching, whether this is a console port, etc.)
+ */
+ send_control_msg(port, VIRTIO_CONSOLE_PORT_READY, 1);
+
+ if (pdrvdata.debugfs_dir) {
+ /*
+ * Finally, create the debugfs file that we can use to
+ * inspect a port's state at any time
+ */
+ sprintf(debugfs_name, "vport%up%u",
+ port->portdev->drv_index, id);
+ port->debugfs_file = debugfs_create_file(debugfs_name, 0444,
+ pdrvdata.debugfs_dir,
+ port,
+ &port_debugfs_ops);
+ }
+ return 0;
+
+free_inbufs:
+ while ((buf = port->in_vq->vq_ops->detach_unused_buf(port->in_vq)))
+ free_buf(buf);
+free_device:
+ device_destroy(pdrvdata.class, port->dev->devt);
+free_cdev:
+ cdev_del(&port->cdev);
+free_port:
+ kfree(port);
+fail:
+ return err;
+}
+
+/*
+ * The workhandler for config-space updates.
*
- * Finally we put our input buffer in the input queue, ready to receive. */
-static int __devinit virtcons_probe(struct virtio_device *dev)
+ * This is called when ports are hot-added.
+ */
+static void config_work_handler(struct work_struct *work)
+{
+ struct virtio_console_config virtconconf;
+ struct ports_device *portdev;
+ struct virtio_device *vdev;
+ int err;
+
+ portdev = container_of(work, struct ports_device, config_work);
+
+ vdev = portdev->vdev;
+ vdev->config->get(vdev,
+ offsetof(struct virtio_console_config, nr_ports),
+ &virtconconf.nr_ports,
+ sizeof(virtconconf.nr_ports));
+
+ if (portdev->config.nr_ports == virtconconf.nr_ports) {
+ /*
+ * Port 0 got hot-added. Since we already did all the
+ * other initialisation for it, just tell the Host
+ * that the port is ready if we find the port. In
+ * case the port was hot-removed earlier, we call
+ * add_port to add the port.
+ */
+ struct port *port;
+
+ port = find_port_by_id(portdev, 0);
+ if (!port)
+ add_port(portdev, 0);
+ else
+ send_control_msg(port, VIRTIO_CONSOLE_PORT_READY, 1);
+ return;
+ }
+ if (virtconconf.nr_ports > portdev->config.max_nr_ports) {
+ dev_warn(&vdev->dev,
+ "More ports specified (%u) than allowed (%u)",
+ portdev->config.nr_ports + 1,
+ portdev->config.max_nr_ports);
+ return;
+ }
+ if (virtconconf.nr_ports < portdev->config.nr_ports)
+ return;
+
+ /* Hot-add ports */
+ while (virtconconf.nr_ports - portdev->config.nr_ports) {
+ err = add_port(portdev, portdev->config.nr_ports);
+ if (err)
+ break;
+ portdev->config.nr_ports++;
+ }
+}
+
+static int init_vqs(struct ports_device *portdev)
{
- vq_callback_t *callbacks[] = { hvc_handle_input, NULL};
- const char *names[] = { "input", "output" };
- struct virtqueue *vqs[2];
+ vq_callback_t **io_callbacks;
+ char **io_names;
+ struct virtqueue **vqs;
+ u32 i, j, nr_ports, nr_queues;
int err;
- vdev = dev;
+ nr_ports = portdev->config.max_nr_ports;
+ nr_queues = use_multiport(portdev) ? (nr_ports + 1) * 2 : 2;
- /* This is the scratch page we use to receive console input */
- inbuf = kmalloc(PAGE_SIZE, GFP_KERNEL);
- if (!inbuf) {
+ vqs = kmalloc(nr_queues * sizeof(struct virtqueue *), GFP_KERNEL);
+ if (!vqs) {
err = -ENOMEM;
goto fail;
}
+ io_callbacks = kmalloc(nr_queues * sizeof(vq_callback_t *), GFP_KERNEL);
+ if (!io_callbacks) {
+ err = -ENOMEM;
+ goto free_vqs;
+ }
+ io_names = kmalloc(nr_queues * sizeof(char *), GFP_KERNEL);
+ if (!io_names) {
+ err = -ENOMEM;
+ goto free_callbacks;
+ }
+ portdev->in_vqs = kmalloc(nr_ports * sizeof(struct virtqueue *),
+ GFP_KERNEL);
+ if (!portdev->in_vqs) {
+ err = -ENOMEM;
+ goto free_names;
+ }
+ portdev->out_vqs = kmalloc(nr_ports * sizeof(struct virtqueue *),
+ GFP_KERNEL);
+ if (!portdev->out_vqs) {
+ err = -ENOMEM;
+ goto free_invqs;
+ }
+
+ /*
+ * For backward compat (newer host but older guest), the host
+ * spawns a console port first and also inits the vqs for port
+ * 0 before others.
+ */
+ j = 0;
+ io_callbacks[j] = in_intr;
+ io_callbacks[j + 1] = NULL;
+ io_names[j] = "input";
+ io_names[j + 1] = "output";
+ j += 2;
+ if (use_multiport(portdev)) {
+ io_callbacks[j] = control_intr;
+ io_callbacks[j + 1] = NULL;
+ io_names[j] = "control-i";
+ io_names[j + 1] = "control-o";
+
+ for (i = 1; i < nr_ports; i++) {
+ j += 2;
+ io_callbacks[j] = in_intr;
+ io_callbacks[j + 1] = NULL;
+ io_names[j] = "input";
+ io_names[j + 1] = "output";
+ }
+ }
/* Find the queues. */
- /* FIXME: This is why we want to wean off hvc: we do nothing
- * when input comes in. */
- err = vdev->config->find_vqs(vdev, 2, vqs, callbacks, names);
+ err = portdev->vdev->config->find_vqs(portdev->vdev, nr_queues, vqs,
+ io_callbacks,
+ (const char **)io_names);
if (err)
+ goto free_outvqs;
+
+ j = 0;
+ portdev->in_vqs[0] = vqs[0];
+ portdev->out_vqs[0] = vqs[1];
+ j += 2;
+ if (use_multiport(portdev)) {
+ portdev->c_ivq = vqs[j];
+ portdev->c_ovq = vqs[j + 1];
+
+ for (i = 1; i < nr_ports; i++) {
+ j += 2;
+ portdev->in_vqs[i] = vqs[j];
+ portdev->out_vqs[i] = vqs[j + 1];
+ }
+ }
+ kfree(io_callbacks);
+ kfree(io_names);
+ kfree(vqs);
+
+ return 0;
+
+free_names:
+ kfree(io_names);
+free_callbacks:
+ kfree(io_callbacks);
+free_outvqs:
+ kfree(portdev->out_vqs);
+free_invqs:
+ kfree(portdev->in_vqs);
+free_vqs:
+ kfree(vqs);
+fail:
+ return err;
+}
+
+static const struct file_operations portdev_fops = {
+ .owner = THIS_MODULE,
+};
+
+/*
+ * Once we're further in boot, we get probed like any other virtio
+ * device.
+ *
+ * If the host also supports multiple console ports, we check the
+ * config space to see how many ports the host has spawned. We
+ * initialize each port found.
+ */
+static int __devinit virtcons_probe(struct virtio_device *vdev)
+{
+ struct ports_device *portdev;
+ u32 i;
+ int err;
+ bool multiport;
+
+ portdev = kmalloc(sizeof(*portdev), GFP_KERNEL);
+ if (!portdev) {
+ err = -ENOMEM;
+ goto fail;
+ }
+
+ /* Attach this portdev to this virtio_device, and vice-versa. */
+ portdev->vdev = vdev;
+ vdev->priv = portdev;
+
+ spin_lock_irq(&pdrvdata_lock);
+ portdev->drv_index = pdrvdata.index++;
+ spin_unlock_irq(&pdrvdata_lock);
+
+ portdev->chr_major = register_chrdev(0, "virtio-portsdev",
+ &portdev_fops);
+ if (portdev->chr_major < 0) {
+ dev_err(&vdev->dev,
+ "Error %d registering chrdev for device %u\n",
+ portdev->chr_major, portdev->drv_index);
+ err = portdev->chr_major;
goto free;
+ }
- in_vq = vqs[0];
- out_vq = vqs[1];
+ multiport = false;
+ portdev->config.nr_ports = 1;
+ portdev->config.max_nr_ports = 1;
+ if (virtio_has_feature(vdev, VIRTIO_CONSOLE_F_MULTIPORT)) {
+ multiport = true;
+ vdev->features[0] |= 1 << VIRTIO_CONSOLE_F_MULTIPORT;
- /* Start using the new console output. */
- virtio_cons.get_chars = get_chars;
- virtio_cons.put_chars = put_chars;
- virtio_cons.notifier_add = notifier_add_vio;
- virtio_cons.notifier_del = notifier_del_vio;
- virtio_cons.notifier_hangup = notifier_del_vio;
-
- /* The first argument of hvc_alloc() is the virtual console number, so
- * we use zero. The second argument is the parameter for the
- * notification mechanism (like irq number). We currently leave this
- * as zero, virtqueues have implicit notifications.
- *
- * The third argument is a "struct hv_ops" containing the put_chars()
- * get_chars(), notifier_add() and notifier_del() pointers.
- * The final argument is the output buffer size: we can do any size,
- * so we put PAGE_SIZE here. */
- hvc = hvc_alloc(0, 0, &virtio_cons, PAGE_SIZE);
- if (IS_ERR(hvc)) {
- err = PTR_ERR(hvc);
- goto free_vqs;
+ vdev->config->get(vdev, offsetof(struct virtio_console_config,
+ nr_ports),
+ &portdev->config.nr_ports,
+ sizeof(portdev->config.nr_ports));
+ vdev->config->get(vdev, offsetof(struct virtio_console_config,
+ max_nr_ports),
+ &portdev->config.max_nr_ports,
+ sizeof(portdev->config.max_nr_ports));
+ if (portdev->config.nr_ports > portdev->config.max_nr_ports) {
+ dev_warn(&vdev->dev,
+ "More ports (%u) specified than allowed (%u). Will init %u ports.",
+ portdev->config.nr_ports,
+ portdev->config.max_nr_ports,
+ portdev->config.max_nr_ports);
+
+ portdev->config.nr_ports = portdev->config.max_nr_ports;
+ }
+ }
+
+ /* Let the Host know we support multiple ports.*/
+ vdev->config->finalize_features(vdev);
+
+ err = init_vqs(portdev);
+ if (err < 0) {
+ dev_err(&vdev->dev, "Error %d initializing vqs\n", err);
+ goto free_chrdev;
+ }
+
+ spin_lock_init(&portdev->ports_lock);
+ INIT_LIST_HEAD(&portdev->ports);
+
+ if (multiport) {
+ spin_lock_init(&portdev->cvq_lock);
+ INIT_WORK(&portdev->control_work, &control_work_handler);
+ INIT_WORK(&portdev->config_work, &config_work_handler);
+
+ err = fill_queue(portdev->c_ivq, &portdev->cvq_lock);
+ if (!err) {
+ dev_err(&vdev->dev,
+ "Error allocating buffers for control queue\n");
+ err = -ENOMEM;
+ goto free_vqs;
+ }
}
- /* Register the input buffer the first time. */
- add_inbuf();
+ for (i = 0; i < portdev->config.nr_ports; i++)
+ add_port(portdev, i);
+
+ /* Start using the new console output. */
+ early_put_chars = NULL;
return 0;
free_vqs:
vdev->config->del_vqs(vdev);
+ kfree(portdev->in_vqs);
+ kfree(portdev->out_vqs);
+free_chrdev:
+ unregister_chrdev(portdev->chr_major, "virtio-portsdev");
free:
- kfree(inbuf);
+ kfree(portdev);
fail:
return err;
}
+static void virtcons_remove(struct virtio_device *vdev)
+{
+ struct ports_device *portdev;
+ struct port *port, *port2;
+ struct port_buffer *buf;
+ unsigned int len;
+
+ portdev = vdev->priv;
+
+ cancel_work_sync(&portdev->control_work);
+ cancel_work_sync(&portdev->config_work);
+
+ list_for_each_entry_safe(port, port2, &portdev->ports, list)
+ remove_port(port);
+
+ unregister_chrdev(portdev->chr_major, "virtio-portsdev");
+
+ while ((buf = portdev->c_ivq->vq_ops->get_buf(portdev->c_ivq, &len)))
+ free_buf(buf);
+
+ while ((buf = portdev->c_ivq->vq_ops->detach_unused_buf(portdev->c_ivq)))
+ free_buf(buf);
+
+ vdev->config->del_vqs(vdev);
+ kfree(portdev->in_vqs);
+ kfree(portdev->out_vqs);
+
+ kfree(portdev);
+}
+
static struct virtio_device_id id_table[] = {
{ VIRTIO_ID_CONSOLE, VIRTIO_DEV_ANY_ID },
{ 0 },
@@ -253,6 +1511,7 @@ static struct virtio_device_id id_table[] = {
static unsigned int features[] = {
VIRTIO_CONSOLE_F_SIZE,
+ VIRTIO_CONSOLE_F_MULTIPORT,
};
static struct virtio_driver virtio_console = {
@@ -262,14 +1521,41 @@ static struct virtio_driver virtio_console = {
.driver.owner = THIS_MODULE,
.id_table = id_table,
.probe = virtcons_probe,
- .config_changed = virtcons_apply_config,
+ .remove = virtcons_remove,
+ .config_changed = config_intr,
};
static int __init init(void)
{
+ int err;
+
+ pdrvdata.class = class_create(THIS_MODULE, "virtio-ports");
+ if (IS_ERR(pdrvdata.class)) {
+ err = PTR_ERR(pdrvdata.class);
+ pr_err("Error %d creating virtio-ports class\n", err);
+ return err;
+ }
+
+ pdrvdata.debugfs_dir = debugfs_create_dir("virtio-ports", NULL);
+ if (!pdrvdata.debugfs_dir) {
+ pr_warning("Error %ld creating debugfs dir for virtio-ports\n",
+ PTR_ERR(pdrvdata.debugfs_dir));
+ }
+ INIT_LIST_HEAD(&pdrvdata.consoles);
+
return register_virtio_driver(&virtio_console);
}
+
+static void __exit fini(void)
+{
+ unregister_virtio_driver(&virtio_console);
+
+ class_destroy(pdrvdata.class);
+ if (pdrvdata.debugfs_dir)
+ debugfs_remove_recursive(pdrvdata.debugfs_dir);
+}
module_init(init);
+module_exit(fini);
MODULE_DEVICE_TABLE(virtio, id_table);
MODULE_DESCRIPTION("Virtio console driver");
diff --git a/drivers/clocksource/cs5535-clockevt.c b/drivers/clocksource/cs5535-clockevt.c
index 27d20fac19d..b314a999aab 100644
--- a/drivers/clocksource/cs5535-clockevt.c
+++ b/drivers/clocksource/cs5535-clockevt.c
@@ -21,7 +21,7 @@
#define DRV_NAME "cs5535-clockevt"
-static int timer_irq = CONFIG_CS5535_MFGPT_DEFAULT_IRQ;
+static int timer_irq;
module_param_named(irq, timer_irq, int, 0644);
MODULE_PARM_DESC(irq, "Which IRQ to use for the clock source MFGPT ticks.");
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index f665b05592f..ab6c9733041 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -598,6 +598,50 @@ struct drm_display_mode *drm_mode_std(struct drm_device *dev,
return mode;
}
+/*
+ * EDID is delightfully ambiguous about how interlaced modes are to be
+ * encoded. Our internal representation is of frame height, but some
+ * HDTV detailed timings are encoded as field height.
+ *
+ * The format list here is from CEA, in frame size. Technically we
+ * should be checking refresh rate too. Whatever.
+ */
+static void
+drm_mode_do_interlace_quirk(struct drm_display_mode *mode,
+ struct detailed_pixel_timing *pt)
+{
+ int i;
+ static const struct {
+ int w, h;
+ } cea_interlaced[] = {
+ { 1920, 1080 },
+ { 720, 480 },
+ { 1440, 480 },
+ { 2880, 480 },
+ { 720, 576 },
+ { 1440, 576 },
+ { 2880, 576 },
+ };
+ static const int n_sizes =
+ sizeof(cea_interlaced)/sizeof(cea_interlaced[0]);
+
+ if (!(pt->misc & DRM_EDID_PT_INTERLACED))
+ return;
+
+ for (i = 0; i < n_sizes; i++) {
+ if ((mode->hdisplay == cea_interlaced[i].w) &&
+ (mode->vdisplay == cea_interlaced[i].h / 2)) {
+ mode->vdisplay *= 2;
+ mode->vsync_start *= 2;
+ mode->vsync_end *= 2;
+ mode->vtotal *= 2;
+ mode->vtotal |= 1;
+ }
+ }
+
+ mode->flags |= DRM_MODE_FLAG_INTERLACE;
+}
+
/**
* drm_mode_detailed - create a new mode from an EDID detailed timing section
* @dev: DRM device (needed to create new mode)
@@ -680,8 +724,7 @@ static struct drm_display_mode *drm_mode_detailed(struct drm_device *dev,
drm_mode_set_name(mode);
- if (pt->misc & DRM_EDID_PT_INTERLACED)
- mode->flags |= DRM_MODE_FLAG_INTERLACE;
+ drm_mode_do_interlace_quirk(mode, pt);
if (quirks & EDID_QUIRK_DETAILED_SYNC_PP) {
pt->misc |= DRM_EDID_PT_HSYNC_POSITIVE | DRM_EDID_PT_VSYNC_POSITIVE;
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 79beffcf593..cf4cb3e9a0c 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -176,6 +176,8 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
static int i915_drm_freeze(struct drm_device *dev)
{
+ struct drm_i915_private *dev_priv = dev->dev_private;
+
pci_save_state(dev->pdev);
/* If KMS is active, we do the leavevt stuff here */
@@ -191,17 +193,12 @@ static int i915_drm_freeze(struct drm_device *dev)
i915_save_state(dev);
- return 0;
-}
-
-static void i915_drm_suspend(struct drm_device *dev)
-{
- struct drm_i915_private *dev_priv = dev->dev_private;
-
intel_opregion_free(dev, 1);
/* Modeset on resume, not lid events */
dev_priv->modeset_on_lid = 0;
+
+ return 0;
}
static int i915_suspend(struct drm_device *dev, pm_message_t state)
@@ -221,8 +218,6 @@ static int i915_suspend(struct drm_device *dev, pm_message_t state)
if (error)
return error;
- i915_drm_suspend(dev);
-
if (state.event == PM_EVENT_SUSPEND) {
/* Shut down the device */
pci_disable_device(dev->pdev);
@@ -237,6 +232,10 @@ static int i915_drm_thaw(struct drm_device *dev)
struct drm_i915_private *dev_priv = dev->dev_private;
int error = 0;
+ i915_restore_state(dev);
+
+ intel_opregion_init(dev, 1);
+
/* KMS EnterVT equivalent */
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
mutex_lock(&dev->struct_mutex);
@@ -263,10 +262,6 @@ static int i915_resume(struct drm_device *dev)
pci_set_master(dev->pdev);
- i915_restore_state(dev);
-
- intel_opregion_init(dev, 1);
-
return i915_drm_thaw(dev);
}
@@ -423,8 +418,6 @@ static int i915_pm_suspend(struct device *dev)
if (error)
return error;
- i915_drm_suspend(drm_dev);
-
pci_disable_device(pdev);
pci_set_power_state(pdev, PCI_D3hot);
@@ -464,13 +457,8 @@ static int i915_pm_poweroff(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
struct drm_device *drm_dev = pci_get_drvdata(pdev);
- int error;
-
- error = i915_drm_freeze(drm_dev);
- if (!error)
- i915_drm_suspend(drm_dev);
- return error;
+ return i915_drm_freeze(drm_dev);
}
const struct dev_pm_ops i915_pm_ops = {
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index b1d0acbae4e..c2e8a45780d 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -636,6 +636,13 @@ static const struct dmi_system_id bad_lid_status[] = {
DMI_MATCH(DMI_PRODUCT_NAME, "PC-81005"),
},
},
+ {
+ .ident = "Clevo M5x0N",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "CLEVO Co."),
+ DMI_MATCH(DMI_BOARD_NAME, "M5x0N"),
+ },
+ },
{ }
};
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index 2cd0fad17da..0e9cd1d4913 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -5861,13 +5861,12 @@ nouveau_bios_run_init_table(struct drm_device *dev, uint16_t table,
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nvbios *bios = &dev_priv->VBIOS;
struct init_exec iexec = { true, false };
- unsigned long flags;
- spin_lock_irqsave(&bios->lock, flags);
+ mutex_lock(&bios->lock);
bios->display.output = dcbent;
parse_init_table(bios, table, &iexec);
bios->display.output = NULL;
- spin_unlock_irqrestore(&bios->lock, flags);
+ mutex_unlock(&bios->lock);
}
static bool NVInitVBIOS(struct drm_device *dev)
@@ -5876,7 +5875,7 @@ static bool NVInitVBIOS(struct drm_device *dev)
struct nvbios *bios = &dev_priv->VBIOS;
memset(bios, 0, sizeof(struct nvbios));
- spin_lock_init(&bios->lock);
+ mutex_init(&bios->lock);
bios->dev = dev;
if (!NVShadowVBIOS(dev, bios->data))
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.h b/drivers/gpu/drm/nouveau/nouveau_bios.h
index 68446fd4146..fd94bd6dc26 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.h
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.h
@@ -205,7 +205,7 @@ struct nvbios {
struct drm_device *dev;
struct nouveau_bios_info pub;
- spinlock_t lock;
+ struct mutex lock;
uint8_t data[NV_PROM_SIZE];
unsigned int length;
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 5445cefdd03..1c15ef37b71 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -583,6 +583,7 @@ struct drm_nouveau_private {
uint64_t vm_end;
struct nouveau_gpuobj *vm_vram_pt[NV50_VM_VRAM_NR];
int vm_vram_pt_nr;
+ uint64_t vram_sys_base;
/* the mtrr covering the FB */
int fb_mtrr;
diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c
index 8f3a12f614e..2dc09dbd817 100644
--- a/drivers/gpu/drm/nouveau/nouveau_mem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_mem.c
@@ -285,53 +285,50 @@ nv50_mem_vm_bind_linear(struct drm_device *dev, uint64_t virt, uint32_t size,
uint32_t flags, uint64_t phys)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
- struct nouveau_gpuobj **pgt;
- unsigned psz, pfl, pages;
-
- if (virt >= dev_priv->vm_gart_base &&
- (virt + size) < (dev_priv->vm_gart_base + dev_priv->vm_gart_size)) {
- psz = 12;
- pgt = &dev_priv->gart_info.sg_ctxdma;
- pfl = 0x21;
- virt -= dev_priv->vm_gart_base;
- } else
- if (virt >= dev_priv->vm_vram_base &&
- (virt + size) < (dev_priv->vm_vram_base + dev_priv->vm_vram_size)) {
- psz = 16;
- pgt = dev_priv->vm_vram_pt;
- pfl = 0x01;
- virt -= dev_priv->vm_vram_base;
- } else {
- NV_ERROR(dev, "Invalid address: 0x%16llx-0x%16llx\n",
- virt, virt + size - 1);
- return -EINVAL;
- }
+ struct nouveau_gpuobj *pgt;
+ unsigned block;
+ int i;
- pages = size >> psz;
+ virt = ((virt - dev_priv->vm_vram_base) >> 16) << 1;
+ size = (size >> 16) << 1;
+
+ phys |= ((uint64_t)flags << 32);
+ phys |= 1;
+ if (dev_priv->vram_sys_base) {
+ phys += dev_priv->vram_sys_base;
+ phys |= 0x30;
+ }
dev_priv->engine.instmem.prepare_access(dev, true);
- if (flags & 0x80000000) {
- while (pages--) {
- struct nouveau_gpuobj *pt = pgt[virt >> 29];
- unsigned pte = ((virt & 0x1fffffffULL) >> psz) << 1;
+ while (size) {
+ unsigned offset_h = upper_32_bits(phys);
+ unsigned offset_l = lower_32_bits(phys);
+ unsigned pte, end;
+
+ for (i = 7; i >= 0; i--) {
+ block = 1 << (i + 1);
+ if (size >= block && !(virt & (block - 1)))
+ break;
+ }
+ offset_l |= (i << 7);
- nv_wo32(dev, pt, pte++, 0x00000000);
- nv_wo32(dev, pt, pte++, 0x00000000);
+ phys += block << 15;
+ size -= block;
- virt += (1 << psz);
- }
- } else {
- while (pages--) {
- struct nouveau_gpuobj *pt = pgt[virt >> 29];
- unsigned pte = ((virt & 0x1fffffffULL) >> psz) << 1;
- unsigned offset_h = upper_32_bits(phys) & 0xff;
- unsigned offset_l = lower_32_bits(phys);
+ while (block) {
+ pgt = dev_priv->vm_vram_pt[virt >> 14];
+ pte = virt & 0x3ffe;
- nv_wo32(dev, pt, pte++, offset_l | pfl);
- nv_wo32(dev, pt, pte++, offset_h | flags);
+ end = pte + block;
+ if (end > 16384)
+ end = 16384;
+ block -= (end - pte);
+ virt += (end - pte);
- phys += (1 << psz);
- virt += (1 << psz);
+ while (pte < end) {
+ nv_wo32(dev, pgt, pte++, offset_l);
+ nv_wo32(dev, pgt, pte++, offset_h);
+ }
}
}
dev_priv->engine.instmem.finish_access(dev);
@@ -356,7 +353,41 @@ nv50_mem_vm_bind_linear(struct drm_device *dev, uint64_t virt, uint32_t size,
void
nv50_mem_vm_unbind(struct drm_device *dev, uint64_t virt, uint32_t size)
{
- nv50_mem_vm_bind_linear(dev, virt, size, 0x80000000, 0);
+ struct drm_nouveau_private *dev_priv = dev->dev_private;
+ struct nouveau_gpuobj *pgt;
+ unsigned pages, pte, end;
+
+ virt -= dev_priv->vm_vram_base;
+ pages = (size >> 16) << 1;
+
+ dev_priv->engine.instmem.prepare_access(dev, true);
+ while (pages) {
+ pgt = dev_priv->vm_vram_pt[virt >> 29];
+ pte = (virt & 0x1ffe0000ULL) >> 15;
+
+ end = pte + pages;
+ if (end > 16384)
+ end = 16384;
+ pages -= (end - pte);
+ virt += (end - pte) << 15;
+
+ while (pte < end)
+ nv_wo32(dev, pgt, pte++, 0);
+ }
+ dev_priv->engine.instmem.finish_access(dev);
+
+ nv_wr32(dev, 0x100c80, 0x00050001);
+ if (!nv_wait(0x100c80, 0x00000001, 0x00000000)) {
+ NV_ERROR(dev, "timeout: (0x100c80 & 1) == 0 (2)\n");
+ NV_ERROR(dev, "0x100c80 = 0x%08x\n", nv_rd32(dev, 0x100c80));
+ return;
+ }
+
+ nv_wr32(dev, 0x100c80, 0x00000001);
+ if (!nv_wait(0x100c80, 0x00000001, 0x00000000)) {
+ NV_ERROR(dev, "timeout: (0x100c80 & 1) == 0 (2)\n");
+ NV_ERROR(dev, "0x100c80 = 0x%08x\n", nv_rd32(dev, 0x100c80));
+ }
}
/*
diff --git a/drivers/gpu/drm/nouveau/nv04_dac.c b/drivers/gpu/drm/nouveau/nv04_dac.c
index d0e038d2894..1d73b15d70d 100644
--- a/drivers/gpu/drm/nouveau/nv04_dac.c
+++ b/drivers/gpu/drm/nouveau/nv04_dac.c
@@ -119,7 +119,7 @@ static enum drm_connector_status nv04_dac_detect(struct drm_encoder *encoder,
struct drm_connector *connector)
{
struct drm_device *dev = encoder->dev;
- uint8_t saved_seq1, saved_pi, saved_rpc1;
+ uint8_t saved_seq1, saved_pi, saved_rpc1, saved_cr_mode;
uint8_t saved_palette0[3], saved_palette_mask;
uint32_t saved_rtest_ctrl, saved_rgen_ctrl;
int i;
@@ -135,6 +135,9 @@ static enum drm_connector_status nv04_dac_detect(struct drm_encoder *encoder,
/* only implemented for head A for now */
NVSetOwner(dev, 0);
+ saved_cr_mode = NVReadVgaCrtc(dev, 0, NV_CIO_CR_MODE_INDEX);
+ NVWriteVgaCrtc(dev, 0, NV_CIO_CR_MODE_INDEX, saved_cr_mode | 0x80);
+
saved_seq1 = NVReadVgaSeq(dev, 0, NV_VIO_SR_CLOCK_INDEX);
NVWriteVgaSeq(dev, 0, NV_VIO_SR_CLOCK_INDEX, saved_seq1 & ~0x20);
@@ -203,6 +206,7 @@ out:
NVWriteVgaCrtc(dev, 0, NV_CIO_CRE_PIXEL_INDEX, saved_pi);
NVWriteVgaCrtc(dev, 0, NV_CIO_CRE_RPC1_INDEX, saved_rpc1);
NVWriteVgaSeq(dev, 0, NV_VIO_SR_CLOCK_INDEX, saved_seq1);
+ NVWriteVgaCrtc(dev, 0, NV_CIO_CR_MODE_INDEX, saved_cr_mode);
if (blue == 0x18) {
NV_INFO(dev, "Load detected on head A\n");
diff --git a/drivers/gpu/drm/nouveau/nv17_tv.c b/drivers/gpu/drm/nouveau/nv17_tv.c
index 58b917c3341..21ac6e49b6e 100644
--- a/drivers/gpu/drm/nouveau/nv17_tv.c
+++ b/drivers/gpu/drm/nouveau/nv17_tv.c
@@ -579,6 +579,8 @@ static void nv17_tv_restore(struct drm_encoder *encoder)
nouveau_encoder(encoder)->restore.output);
nv17_tv_state_load(dev, &to_tv_enc(encoder)->saved_state);
+
+ nouveau_encoder(encoder)->last_dpms = NV_DPMS_CLEARED;
}
static int nv17_tv_create_resources(struct drm_encoder *encoder,
diff --git a/drivers/gpu/drm/nouveau/nv50_instmem.c b/drivers/gpu/drm/nouveau/nv50_instmem.c
index 94400f777e7..f0dc4e36ef0 100644
--- a/drivers/gpu/drm/nouveau/nv50_instmem.c
+++ b/drivers/gpu/drm/nouveau/nv50_instmem.c
@@ -76,6 +76,11 @@ nv50_instmem_init(struct drm_device *dev)
for (i = 0x1700; i <= 0x1710; i += 4)
priv->save1700[(i-0x1700)/4] = nv_rd32(dev, i);
+ if (dev_priv->chipset == 0xaa || dev_priv->chipset == 0xac)
+ dev_priv->vram_sys_base = nv_rd32(dev, 0x100e10) << 12;
+ else
+ dev_priv->vram_sys_base = 0;
+
/* Reserve the last MiB of VRAM, we should probably try to avoid
* setting up the below tables over the top of the VBIOS image at
* some point.
@@ -172,16 +177,28 @@ nv50_instmem_init(struct drm_device *dev)
* We map the entire fake channel into the start of the PRAMIN BAR
*/
ret = nouveau_gpuobj_new_ref(dev, chan, NULL, 0, pt_size, 0x1000,
- 0, &priv->pramin_pt);
+ 0, &priv->pramin_pt);
if (ret)
return ret;
- for (i = 0, v = c_offset; i < pt_size; i += 8, v += 0x1000) {
- if (v < (c_offset + c_size))
- BAR0_WI32(priv->pramin_pt->gpuobj, i + 0, v | 1);
- else
- BAR0_WI32(priv->pramin_pt->gpuobj, i + 0, 0x00000009);
+ v = c_offset | 1;
+ if (dev_priv->vram_sys_base) {
+ v += dev_priv->vram_sys_base;
+ v |= 0x30;
+ }
+
+ i = 0;
+ while (v < dev_priv->vram_sys_base + c_offset + c_size) {
+ BAR0_WI32(priv->pramin_pt->gpuobj, i + 0, v);
+ BAR0_WI32(priv->pramin_pt->gpuobj, i + 4, 0x00000000);
+ v += 0x1000;
+ i += 8;
+ }
+
+ while (i < pt_size) {
+ BAR0_WI32(priv->pramin_pt->gpuobj, i + 0, 0x00000000);
BAR0_WI32(priv->pramin_pt->gpuobj, i + 4, 0x00000000);
+ i += 8;
}
BAR0_WI32(chan->vm_pd, 0x00, priv->pramin_pt->instance | 0x63);
@@ -416,7 +433,9 @@ nv50_instmem_bind(struct drm_device *dev, struct nouveau_gpuobj *gpuobj)
{
struct drm_nouveau_private *dev_priv = dev->dev_private;
struct nv50_instmem_priv *priv = dev_priv->engine.instmem.priv;
- uint32_t pte, pte_end, vram;
+ struct nouveau_gpuobj *pramin_pt = priv->pramin_pt->gpuobj;
+ uint32_t pte, pte_end;
+ uint64_t vram;
if (!gpuobj->im_backing || !gpuobj->im_pramin || gpuobj->im_bound)
return -EINVAL;
@@ -424,20 +443,24 @@ nv50_instmem_bind(struct drm_device *dev, struct nouveau_gpuobj *gpuobj)
NV_DEBUG(dev, "st=0x%0llx sz=0x%0llx\n",
gpuobj->im_pramin->start, gpuobj->im_pramin->size);
- pte = (gpuobj->im_pramin->start >> 12) << 3;
- pte_end = ((gpuobj->im_pramin->size >> 12) << 3) + pte;
+ pte = (gpuobj->im_pramin->start >> 12) << 1;
+ pte_end = ((gpuobj->im_pramin->size >> 12) << 1) + pte;
vram = gpuobj->im_backing_start;
NV_DEBUG(dev, "pramin=0x%llx, pte=%d, pte_end=%d\n",
gpuobj->im_pramin->start, pte, pte_end);
NV_DEBUG(dev, "first vram page: 0x%08x\n", gpuobj->im_backing_start);
+ vram |= 1;
+ if (dev_priv->vram_sys_base) {
+ vram += dev_priv->vram_sys_base;
+ vram |= 0x30;
+ }
+
dev_priv->engine.instmem.prepare_access(dev, true);
while (pte < pte_end) {
- nv_wo32(dev, priv->pramin_pt->gpuobj, (pte + 0)/4, vram | 1);
- nv_wo32(dev, priv->pramin_pt->gpuobj, (pte + 4)/4, 0x00000000);
-
- pte += 8;
+ nv_wo32(dev, pramin_pt, pte++, lower_32_bits(vram));
+ nv_wo32(dev, pramin_pt, pte++, upper_32_bits(vram));
vram += NV50_INSTMEM_PAGE_SIZE;
}
dev_priv->engine.instmem.finish_access(dev);
@@ -470,14 +493,13 @@ nv50_instmem_unbind(struct drm_device *dev, struct nouveau_gpuobj *gpuobj)
if (gpuobj->im_bound == 0)
return -EINVAL;
- pte = (gpuobj->im_pramin->start >> 12) << 3;
- pte_end = ((gpuobj->im_pramin->size >> 12) << 3) + pte;
+ pte = (gpuobj->im_pramin->start >> 12) << 1;
+ pte_end = ((gpuobj->im_pramin->size >> 12) << 1) + pte;
dev_priv->engine.instmem.prepare_access(dev, true);
while (pte < pte_end) {
- nv_wo32(dev, priv->pramin_pt->gpuobj, (pte + 0)/4, 0x00000009);
- nv_wo32(dev, priv->pramin_pt->gpuobj, (pte + 4)/4, 0x00000000);
- pte += 8;
+ nv_wo32(dev, priv->pramin_pt->gpuobj, pte++, 0x00000000);
+ nv_wo32(dev, priv->pramin_pt->gpuobj, pte++, 0x00000000);
}
dev_priv->engine.instmem.finish_access(dev);
diff --git a/drivers/gpu/drm/radeon/atom.c b/drivers/gpu/drm/radeon/atom.c
index 2a3df5599ab..7f152f66f19 100644
--- a/drivers/gpu/drm/radeon/atom.c
+++ b/drivers/gpu/drm/radeon/atom.c
@@ -643,7 +643,7 @@ static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
uint8_t count = U8((*ptr)++);
SDEBUG(" count: %d\n", count);
if (arg == ATOM_UNIT_MICROSEC)
- schedule_timeout_uninterruptible(usecs_to_jiffies(count));
+ udelay(count);
else
schedule_timeout_uninterruptible(msecs_to_jiffies(count));
}
diff --git a/drivers/gpu/drm/radeon/r600_blit_kms.c b/drivers/gpu/drm/radeon/r600_blit_kms.c
index af1c3ca8a4c..446b765ac72 100644
--- a/drivers/gpu/drm/radeon/r600_blit_kms.c
+++ b/drivers/gpu/drm/radeon/r600_blit_kms.c
@@ -543,9 +543,6 @@ int r600_vb_ib_get(struct radeon_device *rdev)
void r600_vb_ib_put(struct radeon_device *rdev)
{
radeon_fence_emit(rdev, rdev->r600_blit.vb_ib->fence);
- mutex_lock(&rdev->ib_pool.mutex);
- list_add_tail(&rdev->r600_blit.vb_ib->list, &rdev->ib_pool.scheduled_ibs);
- mutex_unlock(&rdev->ib_pool.mutex);
radeon_ib_free(rdev, &rdev->r600_blit.vb_ib);
}
diff --git a/drivers/gpu/drm/radeon/r600_cp.c b/drivers/gpu/drm/radeon/r600_cp.c
index 6d5a711c2e9..75bcf35a093 100644
--- a/drivers/gpu/drm/radeon/r600_cp.c
+++ b/drivers/gpu/drm/radeon/r600_cp.c
@@ -1428,9 +1428,12 @@ static void r700_gfx_init(struct drm_device *dev,
gb_tiling_config |= R600_BANK_SWAPS(1);
- backend_map = r700_get_tile_pipe_to_backend_map(dev_priv->r600_max_tile_pipes,
- dev_priv->r600_max_backends,
- (0xff << dev_priv->r600_max_backends) & 0xff);
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV740)
+ backend_map = 0x28;
+ else
+ backend_map = r700_get_tile_pipe_to_backend_map(dev_priv->r600_max_tile_pipes,
+ dev_priv->r600_max_backends,
+ (0xff << dev_priv->r600_max_backends) & 0xff);
gb_tiling_config |= R600_BACKEND_MAP(backend_map);
cc_gc_shader_pipe_config =
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index f57480ba135..c0356bb193e 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -96,6 +96,7 @@ extern int radeon_audio;
* symbol;
*/
#define RADEON_MAX_USEC_TIMEOUT 100000 /* 100 ms */
+/* RADEON_IB_POOL_SIZE must be a power of 2 */
#define RADEON_IB_POOL_SIZE 16
#define RADEON_DEBUGFS_MAX_NUM_FILES 32
#define RADEONFB_CONN_LIMIT 4
@@ -363,11 +364,12 @@ void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev);
*/
struct radeon_ib {
struct list_head list;
- unsigned long idx;
+ unsigned idx;
uint64_t gpu_addr;
struct radeon_fence *fence;
- uint32_t *ptr;
+ uint32_t *ptr;
uint32_t length_dw;
+ bool free;
};
/*
@@ -377,10 +379,9 @@ struct radeon_ib {
struct radeon_ib_pool {
struct mutex mutex;
struct radeon_bo *robj;
- struct list_head scheduled_ibs;
struct radeon_ib ibs[RADEON_IB_POOL_SIZE];
bool ready;
- DECLARE_BITMAP(alloc_bm, RADEON_IB_POOL_SIZE);
+ unsigned head_id;
};
struct radeon_cp {
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 2dcda611587..4d8831548a5 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -206,6 +206,15 @@ static bool radeon_atom_apply_quirks(struct drm_device *dev,
*connector_type = DRM_MODE_CONNECTOR_DVID;
}
+ /* Asrock RS600 board lists the DVI port as HDMI */
+ if ((dev->pdev->device == 0x7941) &&
+ (dev->pdev->subsystem_vendor == 0x1849) &&
+ (dev->pdev->subsystem_device == 0x7941)) {
+ if ((*connector_type == DRM_MODE_CONNECTOR_HDMIA) &&
+ (supported_device == ATOM_DEVICE_DFP3_SUPPORT))
+ *connector_type = DRM_MODE_CONNECTOR_DVID;
+ }
+
/* a-bit f-i90hd - ciaranm on #radeonhd - this board has no DVI */
if ((dev->pdev->device == 0x7941) &&
(dev->pdev->subsystem_vendor == 0x147b) &&
diff --git a/drivers/gpu/drm/radeon/radeon_combios.c b/drivers/gpu/drm/radeon/radeon_combios.c
index e7b19440102..22d476160d5 100644
--- a/drivers/gpu/drm/radeon/radeon_combios.c
+++ b/drivers/gpu/drm/radeon/radeon_combios.c
@@ -1279,47 +1279,47 @@ bool radeon_get_legacy_connector_info_from_table(struct drm_device *dev)
rdev->mode_info.connector_table = radeon_connector_table;
if (rdev->mode_info.connector_table == CT_NONE) {
#ifdef CONFIG_PPC_PMAC
- if (machine_is_compatible("PowerBook3,3")) {
+ if (of_machine_is_compatible("PowerBook3,3")) {
/* powerbook with VGA */
rdev->mode_info.connector_table = CT_POWERBOOK_VGA;
- } else if (machine_is_compatible("PowerBook3,4") ||
- machine_is_compatible("PowerBook3,5")) {
+ } else if (of_machine_is_compatible("PowerBook3,4") ||
+ of_machine_is_compatible("PowerBook3,5")) {
/* powerbook with internal tmds */
rdev->mode_info.connector_table = CT_POWERBOOK_INTERNAL;
- } else if (machine_is_compatible("PowerBook5,1") ||
- machine_is_compatible("PowerBook5,2") ||
- machine_is_compatible("PowerBook5,3") ||
- machine_is_compatible("PowerBook5,4") ||
- machine_is_compatible("PowerBook5,5")) {
+ } else if (of_machine_is_compatible("PowerBook5,1") ||
+ of_machine_is_compatible("PowerBook5,2") ||
+ of_machine_is_compatible("PowerBook5,3") ||
+ of_machine_is_compatible("PowerBook5,4") ||
+ of_machine_is_compatible("PowerBook5,5")) {
/* powerbook with external single link tmds (sil164) */
rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
- } else if (machine_is_compatible("PowerBook5,6")) {
+ } else if (of_machine_is_compatible("PowerBook5,6")) {
/* powerbook with external dual or single link tmds */
rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
- } else if (machine_is_compatible("PowerBook5,7") ||
- machine_is_compatible("PowerBook5,8") ||
- machine_is_compatible("PowerBook5,9")) {
+ } else if (of_machine_is_compatible("PowerBook5,7") ||
+ of_machine_is_compatible("PowerBook5,8") ||
+ of_machine_is_compatible("PowerBook5,9")) {
/* PowerBook6,2 ? */
/* powerbook with external dual link tmds (sil1178?) */
rdev->mode_info.connector_table = CT_POWERBOOK_EXTERNAL;
- } else if (machine_is_compatible("PowerBook4,1") ||
- machine_is_compatible("PowerBook4,2") ||
- machine_is_compatible("PowerBook4,3") ||
- machine_is_compatible("PowerBook6,3") ||
- machine_is_compatible("PowerBook6,5") ||
- machine_is_compatible("PowerBook6,7")) {
+ } else if (of_machine_is_compatible("PowerBook4,1") ||
+ of_machine_is_compatible("PowerBook4,2") ||
+ of_machine_is_compatible("PowerBook4,3") ||
+ of_machine_is_compatible("PowerBook6,3") ||
+ of_machine_is_compatible("PowerBook6,5") ||
+ of_machine_is_compatible("PowerBook6,7")) {
/* ibook */
rdev->mode_info.connector_table = CT_IBOOK;
- } else if (machine_is_compatible("PowerMac4,4")) {
+ } else if (of_machine_is_compatible("PowerMac4,4")) {
/* emac */
rdev->mode_info.connector_table = CT_EMAC;
- } else if (machine_is_compatible("PowerMac10,1")) {
+ } else if (of_machine_is_compatible("PowerMac10,1")) {
/* mini with internal tmds */
rdev->mode_info.connector_table = CT_MINI_INTERNAL;
- } else if (machine_is_compatible("PowerMac10,2")) {
+ } else if (of_machine_is_compatible("PowerMac10,2")) {
/* mini with external tmds */
rdev->mode_info.connector_table = CT_MINI_EXTERNAL;
- } else if (machine_is_compatible("PowerMac12,1")) {
+ } else if (of_machine_is_compatible("PowerMac12,1")) {
/* PowerMac8,1 ? */
/* imac g5 isight */
rdev->mode_info.connector_table = CT_IMAC_G5_ISIGHT;
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 23818854001..65f81942f39 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -780,7 +780,7 @@ static enum drm_connector_status radeon_dvi_detect(struct drm_connector *connect
* connected and the DVI port disconnected. If the edid doesn't
* say HDMI, vice versa.
*/
- if (radeon_connector->shared_ddc && connector_status_connected) {
+ if (radeon_connector->shared_ddc && (ret == connector_status_connected)) {
struct drm_device *dev = connector->dev;
struct drm_connector *list_connector;
struct radeon_connector *list_radeon_connector;
@@ -1060,8 +1060,7 @@ radeon_add_atom_connector(struct drm_device *dev,
return;
}
if (radeon_connector->ddc_bus && i2c_bus->valid) {
- if (memcmp(&radeon_connector->ddc_bus->rec, i2c_bus,
- sizeof(struct radeon_i2c_bus_rec)) == 0) {
+ if (radeon_connector->ddc_bus->rec.i2c_id == i2c_bus->i2c_id) {
radeon_connector->shared_ddc = true;
shared_ddc = true;
}
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 1190148cf5e..e9d085021c1 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -86,7 +86,7 @@ int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
&p->validated);
}
}
- return radeon_bo_list_validate(&p->validated, p->ib->fence);
+ return radeon_bo_list_validate(&p->validated);
}
int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
@@ -189,12 +189,10 @@ static void radeon_cs_parser_fini(struct radeon_cs_parser *parser, int error)
{
unsigned i;
- if (error && parser->ib) {
- radeon_bo_list_unvalidate(&parser->validated,
- parser->ib->fence);
- } else {
- radeon_bo_list_unreserve(&parser->validated);
+ if (!error && parser->ib) {
+ radeon_bo_list_fence(&parser->validated, parser->ib->fence);
}
+ radeon_bo_list_unreserve(&parser->validated);
for (i = 0; i < parser->nrelocs; i++) {
if (parser->relocs[i].gobj) {
mutex_lock(&parser->rdev->ddev->struct_mutex);
diff --git a/drivers/gpu/drm/radeon/radeon_drv.h b/drivers/gpu/drm/radeon/radeon_drv.h
index e13785282a8..c57ad606504 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.h
+++ b/drivers/gpu/drm/radeon/radeon_drv.h
@@ -106,9 +106,10 @@
* 1.29- R500 3D cmd buffer support
* 1.30- Add support for occlusion queries
* 1.31- Add support for num Z pipes from GET_PARAM
+ * 1.32- fixes for rv740 setup
*/
#define DRIVER_MAJOR 1
-#define DRIVER_MINOR 31
+#define DRIVER_MINOR 32
#define DRIVER_PATCHLEVEL 0
enum radeon_cp_microcode_version {
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index d72a71bff21..f1da370928e 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -306,11 +306,10 @@ void radeon_bo_list_unreserve(struct list_head *head)
}
}
-int radeon_bo_list_validate(struct list_head *head, void *fence)
+int radeon_bo_list_validate(struct list_head *head)
{
struct radeon_bo_list *lobj;
struct radeon_bo *bo;
- struct radeon_fence *old_fence = NULL;
int r;
r = radeon_bo_list_reserve(head);
@@ -334,32 +333,27 @@ int radeon_bo_list_validate(struct list_head *head, void *fence)
}
lobj->gpu_offset = radeon_bo_gpu_offset(bo);
lobj->tiling_flags = bo->tiling_flags;
- if (fence) {
- old_fence = (struct radeon_fence *)bo->tbo.sync_obj;
- bo->tbo.sync_obj = radeon_fence_ref(fence);
- bo->tbo.sync_obj_arg = NULL;
- }
- if (old_fence) {
- radeon_fence_unref(&old_fence);
- }
}
return 0;
}
-void radeon_bo_list_unvalidate(struct list_head *head, void *fence)
+void radeon_bo_list_fence(struct list_head *head, void *fence)
{
struct radeon_bo_list *lobj;
- struct radeon_fence *old_fence;
-
- if (fence)
- list_for_each_entry(lobj, head, list) {
- old_fence = to_radeon_fence(lobj->bo->tbo.sync_obj);
- if (old_fence == fence) {
- lobj->bo->tbo.sync_obj = NULL;
- radeon_fence_unref(&old_fence);
- }
+ struct radeon_bo *bo;
+ struct radeon_fence *old_fence = NULL;
+
+ list_for_each_entry(lobj, head, list) {
+ bo = lobj->bo;
+ spin_lock(&bo->tbo.lock);
+ old_fence = (struct radeon_fence *)bo->tbo.sync_obj;
+ bo->tbo.sync_obj = radeon_fence_ref(fence);
+ bo->tbo.sync_obj_arg = NULL;
+ spin_unlock(&bo->tbo.lock);
+ if (old_fence) {
+ radeon_fence_unref(&old_fence);
}
- radeon_bo_list_unreserve(head);
+ }
}
int radeon_bo_fbdev_mmap(struct radeon_bo *bo,
diff --git a/drivers/gpu/drm/radeon/radeon_object.h b/drivers/gpu/drm/radeon/radeon_object.h
index a02f18011ad..7ab43de1e24 100644
--- a/drivers/gpu/drm/radeon/radeon_object.h
+++ b/drivers/gpu/drm/radeon/radeon_object.h
@@ -156,8 +156,8 @@ extern void radeon_bo_list_add_object(struct radeon_bo_list *lobj,
struct list_head *head);
extern int radeon_bo_list_reserve(struct list_head *head);
extern void radeon_bo_list_unreserve(struct list_head *head);
-extern int radeon_bo_list_validate(struct list_head *head, void *fence);
-extern void radeon_bo_list_unvalidate(struct list_head *head, void *fence);
+extern int radeon_bo_list_validate(struct list_head *head);
+extern void radeon_bo_list_fence(struct list_head *head, void *fence);
extern int radeon_bo_fbdev_mmap(struct radeon_bo *bo,
struct vm_area_struct *vma);
extern int radeon_bo_set_tiling_flags(struct radeon_bo *bo,
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index 4d12b2d17b4..6579eb4c1f2 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -41,68 +41,55 @@ int radeon_ib_get(struct radeon_device *rdev, struct radeon_ib **ib)
{
struct radeon_fence *fence;
struct radeon_ib *nib;
- unsigned long i;
- int r = 0;
+ int r = 0, i, c;
*ib = NULL;
r = radeon_fence_create(rdev, &fence);
if (r) {
- DRM_ERROR("failed to create fence for new IB\n");
+ dev_err(rdev->dev, "failed to create fence for new IB\n");
return r;
}
mutex_lock(&rdev->ib_pool.mutex);
- i = find_first_zero_bit(rdev->ib_pool.alloc_bm, RADEON_IB_POOL_SIZE);
- if (i < RADEON_IB_POOL_SIZE) {
- set_bit(i, rdev->ib_pool.alloc_bm);
- rdev->ib_pool.ibs[i].length_dw = 0;
- *ib = &rdev->ib_pool.ibs[i];
- mutex_unlock(&rdev->ib_pool.mutex);
- goto out;
+ for (i = rdev->ib_pool.head_id, c = 0, nib = NULL; c < RADEON_IB_POOL_SIZE; c++, i++) {
+ i &= (RADEON_IB_POOL_SIZE - 1);
+ if (rdev->ib_pool.ibs[i].free) {
+ nib = &rdev->ib_pool.ibs[i];
+ break;
+ }
}
- if (list_empty(&rdev->ib_pool.scheduled_ibs)) {
- /* we go do nothings here */
+ if (nib == NULL) {
+ /* This should never happen, it means we allocated all
+ * IB and haven't scheduled one yet, return EBUSY to
+ * userspace hoping that on ioctl recall we get better
+ * luck
+ */
+ dev_err(rdev->dev, "no free indirect buffer !\n");
mutex_unlock(&rdev->ib_pool.mutex);
- DRM_ERROR("all IB allocated none scheduled.\n");
- r = -EINVAL;
- goto out;
+ radeon_fence_unref(&fence);
+ return -EBUSY;
}
- /* get the first ib on the scheduled list */
- nib = list_entry(rdev->ib_pool.scheduled_ibs.next,
- struct radeon_ib, list);
- if (nib->fence == NULL) {
- /* we go do nothings here */
+ rdev->ib_pool.head_id = (nib->idx + 1) & (RADEON_IB_POOL_SIZE - 1);
+ nib->free = false;
+ if (nib->fence) {
mutex_unlock(&rdev->ib_pool.mutex);
- DRM_ERROR("IB %lu scheduled without a fence.\n", nib->idx);
- r = -EINVAL;
- goto out;
- }
- mutex_unlock(&rdev->ib_pool.mutex);
-
- r = radeon_fence_wait(nib->fence, false);
- if (r) {
- DRM_ERROR("radeon: IB(%lu:0x%016lX:%u)\n", nib->idx,
- (unsigned long)nib->gpu_addr, nib->length_dw);
- DRM_ERROR("radeon: GPU lockup detected, fail to get a IB\n");
- goto out;
+ r = radeon_fence_wait(nib->fence, false);
+ if (r) {
+ dev_err(rdev->dev, "error waiting fence of IB(%u:0x%016lX:%u)\n",
+ nib->idx, (unsigned long)nib->gpu_addr, nib->length_dw);
+ mutex_lock(&rdev->ib_pool.mutex);
+ nib->free = true;
+ mutex_unlock(&rdev->ib_pool.mutex);
+ radeon_fence_unref(&fence);
+ return r;
+ }
+ mutex_lock(&rdev->ib_pool.mutex);
}
radeon_fence_unref(&nib->fence);
-
+ nib->fence = fence;
nib->length_dw = 0;
-
- /* scheduled list is accessed here */
- mutex_lock(&rdev->ib_pool.mutex);
- list_del(&nib->list);
- INIT_LIST_HEAD(&nib->list);
mutex_unlock(&rdev->ib_pool.mutex);
-
*ib = nib;
-out:
- if (r) {
- radeon_fence_unref(&fence);
- } else {
- (*ib)->fence = fence;
- }
- return r;
+ return 0;
}
void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib **ib)
@@ -113,19 +100,10 @@ void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib **ib)
if (tmp == NULL) {
return;
}
- mutex_lock(&rdev->ib_pool.mutex);
- if (!list_empty(&tmp->list) && !radeon_fence_signaled(tmp->fence)) {
- /* IB is scheduled & not signaled don't do anythings */
- mutex_unlock(&rdev->ib_pool.mutex);
- return;
- }
- list_del(&tmp->list);
- INIT_LIST_HEAD(&tmp->list);
- if (tmp->fence)
+ if (!tmp->fence->emited)
radeon_fence_unref(&tmp->fence);
-
- tmp->length_dw = 0;
- clear_bit(tmp->idx, rdev->ib_pool.alloc_bm);
+ mutex_lock(&rdev->ib_pool.mutex);
+ tmp->free = true;
mutex_unlock(&rdev->ib_pool.mutex);
}
@@ -135,7 +113,7 @@ int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib)
if (!ib->length_dw || !rdev->cp.ready) {
/* TODO: Nothings in the ib we should report. */
- DRM_ERROR("radeon: couldn't schedule IB(%lu).\n", ib->idx);
+ DRM_ERROR("radeon: couldn't schedule IB(%u).\n", ib->idx);
return -EINVAL;
}
@@ -148,7 +126,8 @@ int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib)
radeon_ring_ib_execute(rdev, ib);
radeon_fence_emit(rdev, ib->fence);
mutex_lock(&rdev->ib_pool.mutex);
- list_add_tail(&ib->list, &rdev->ib_pool.scheduled_ibs);
+ /* once scheduled IB is considered free and protected by the fence */
+ ib->free = true;
mutex_unlock(&rdev->ib_pool.mutex);
radeon_ring_unlock_commit(rdev);
return 0;
@@ -164,7 +143,6 @@ int radeon_ib_pool_init(struct radeon_device *rdev)
if (rdev->ib_pool.robj)
return 0;
/* Allocate 1M object buffer */
- INIT_LIST_HEAD(&rdev->ib_pool.scheduled_ibs);
r = radeon_bo_create(rdev, NULL, RADEON_IB_POOL_SIZE*64*1024,
true, RADEON_GEM_DOMAIN_GTT,
&rdev->ib_pool.robj);
@@ -195,9 +173,9 @@ int radeon_ib_pool_init(struct radeon_device *rdev)
rdev->ib_pool.ibs[i].ptr = ptr + offset;
rdev->ib_pool.ibs[i].idx = i;
rdev->ib_pool.ibs[i].length_dw = 0;
- INIT_LIST_HEAD(&rdev->ib_pool.ibs[i].list);
+ rdev->ib_pool.ibs[i].free = true;
}
- bitmap_zero(rdev->ib_pool.alloc_bm, RADEON_IB_POOL_SIZE);
+ rdev->ib_pool.head_id = 0;
rdev->ib_pool.ready = true;
DRM_INFO("radeon: ib pool ready.\n");
if (radeon_debugfs_ib_init(rdev)) {
@@ -214,7 +192,6 @@ void radeon_ib_pool_fini(struct radeon_device *rdev)
return;
}
mutex_lock(&rdev->ib_pool.mutex);
- bitmap_zero(rdev->ib_pool.alloc_bm, RADEON_IB_POOL_SIZE);
if (rdev->ib_pool.robj) {
r = radeon_bo_reserve(rdev->ib_pool.robj, false);
if (likely(r == 0)) {
@@ -363,7 +340,7 @@ static int radeon_debugfs_ib_info(struct seq_file *m, void *data)
if (ib == NULL) {
return 0;
}
- seq_printf(m, "IB %04lu\n", ib->idx);
+ seq_printf(m, "IB %04u\n", ib->idx);
seq_printf(m, "IB fence %p\n", ib->fence);
seq_printf(m, "IB size %05u dwords\n", ib->length_dw);
for (i = 0; i < ib->length_dw; i++) {
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 5943d561fd1..03021674d09 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -549,9 +549,12 @@ static void rv770_gpu_init(struct radeon_device *rdev)
gb_tiling_config |= BANK_SWAPS(1);
- backend_map = r700_get_tile_pipe_to_backend_map(rdev->config.rv770.max_tile_pipes,
- rdev->config.rv770.max_backends,
- (0xff << rdev->config.rv770.max_backends) & 0xff);
+ if (rdev->family == CHIP_RV740)
+ backend_map = 0x28;
+ else
+ backend_map = r700_get_tile_pipe_to_backend_map(rdev->config.rv770.max_tile_pipes,
+ rdev->config.rv770.max_backends,
+ (0xff << rdev->config.rv770.max_backends) & 0xff);
gb_tiling_config |= BACKEND_MAP(backend_map);
cc_gc_shader_pipe_config =
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index e2123af7775..3d47a2c1232 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -196,14 +196,15 @@ EXPORT_SYMBOL(ttm_tt_populate);
#ifdef CONFIG_X86
static inline int ttm_tt_set_page_caching(struct page *p,
- enum ttm_caching_state c_state)
+ enum ttm_caching_state c_old,
+ enum ttm_caching_state c_new)
{
int ret = 0;
if (PageHighMem(p))
return 0;
- if (get_page_memtype(p) != -1) {
+ if (c_old != tt_cached) {
/* p isn't in the default caching state, set it to
* writeback first to free its current memtype. */
@@ -212,16 +213,17 @@ static inline int ttm_tt_set_page_caching(struct page *p,
return ret;
}
- if (c_state == tt_wc)
+ if (c_new == tt_wc)
ret = set_memory_wc((unsigned long) page_address(p), 1);
- else if (c_state == tt_uncached)
+ else if (c_new == tt_uncached)
ret = set_pages_uc(p, 1);
return ret;
}
#else /* CONFIG_X86 */
static inline int ttm_tt_set_page_caching(struct page *p,
- enum ttm_caching_state c_state)
+ enum ttm_caching_state c_old,
+ enum ttm_caching_state c_new)
{
return 0;
}
@@ -254,7 +256,9 @@ static int ttm_tt_set_caching(struct ttm_tt *ttm,
for (i = 0; i < ttm->num_pages; ++i) {
cur_page = ttm->pages[i];
if (likely(cur_page != NULL)) {
- ret = ttm_tt_set_page_caching(cur_page, c_state);
+ ret = ttm_tt_set_page_caching(cur_page,
+ ttm->caching_state,
+ c_state);
if (unlikely(ret != 0))
goto out_err;
}
@@ -268,7 +272,7 @@ out_err:
for (j = 0; j < i; ++j) {
cur_page = ttm->pages[j];
if (likely(cur_page != NULL)) {
- (void)ttm_tt_set_page_caching(cur_page,
+ (void)ttm_tt_set_page_caching(cur_page, c_state,
ttm->caching_state);
}
}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index a6e8f687fa6..0c9c0811f42 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -348,22 +348,19 @@ static int vmw_driver_load(struct drm_device *dev, unsigned long chipset)
*/
DRM_INFO("It appears like vesafb is loaded. "
- "Ignore above error if any. Entering stealth mode.\n");
+ "Ignore above error if any.\n");
ret = pci_request_region(dev->pdev, 2, "vmwgfx stealth probe");
if (unlikely(ret != 0)) {
DRM_ERROR("Failed reserving the SVGA MMIO resource.\n");
goto out_no_device;
}
- vmw_kms_init(dev_priv);
- vmw_overlay_init(dev_priv);
- } else {
- ret = vmw_request_device(dev_priv);
- if (unlikely(ret != 0))
- goto out_no_device;
- vmw_kms_init(dev_priv);
- vmw_overlay_init(dev_priv);
- vmw_fb_init(dev_priv);
}
+ ret = vmw_request_device(dev_priv);
+ if (unlikely(ret != 0))
+ goto out_no_device;
+ vmw_kms_init(dev_priv);
+ vmw_overlay_init(dev_priv);
+ vmw_fb_init(dev_priv);
dev_priv->pm_nb.notifier_call = vmwgfx_pm_notifier;
register_pm_notifier(&dev_priv->pm_nb);
@@ -406,17 +403,15 @@ static int vmw_driver_unload(struct drm_device *dev)
unregister_pm_notifier(&dev_priv->pm_nb);
- if (!dev_priv->stealth) {
- vmw_fb_close(dev_priv);
- vmw_kms_close(dev_priv);
- vmw_overlay_close(dev_priv);
- vmw_release_device(dev_priv);
- pci_release_regions(dev->pdev);
- } else {
- vmw_kms_close(dev_priv);
- vmw_overlay_close(dev_priv);
+ vmw_fb_close(dev_priv);
+ vmw_kms_close(dev_priv);
+ vmw_overlay_close(dev_priv);
+ vmw_release_device(dev_priv);
+ if (dev_priv->stealth)
pci_release_region(dev->pdev, 2);
- }
+ else
+ pci_release_regions(dev->pdev);
+
if (dev_priv->capabilities & SVGA_CAP_IRQMASK)
drm_irq_uninstall(dev_priv->dev);
if (dev->devname == vmw_devname)
@@ -585,11 +580,6 @@ static int vmw_master_set(struct drm_device *dev,
int ret = 0;
DRM_INFO("Master set.\n");
- if (dev_priv->stealth) {
- ret = vmw_request_device(dev_priv);
- if (unlikely(ret != 0))
- return ret;
- }
if (active) {
BUG_ON(active != &dev_priv->fbdev_master);
@@ -649,18 +639,11 @@ static void vmw_master_drop(struct drm_device *dev,
ttm_lock_set_kill(&vmaster->lock, true, SIGTERM);
- if (dev_priv->stealth) {
- ret = ttm_bo_evict_mm(&dev_priv->bdev, TTM_PL_VRAM);
- if (unlikely(ret != 0))
- DRM_ERROR("Unable to clean VRAM on master drop.\n");
- vmw_release_device(dev_priv);
- }
dev_priv->active_master = &dev_priv->fbdev_master;
ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM);
ttm_vt_unlock(&dev_priv->fbdev_master.lock);
- if (!dev_priv->stealth)
- vmw_fb_on(dev_priv);
+ vmw_fb_on(dev_priv);
}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index d69caf92ffe..0897359b3e4 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -182,25 +182,19 @@ static int vmw_cmd_present_check(struct vmw_private *dev_priv,
return vmw_cmd_sid_check(dev_priv, sw_context, &cmd->body.sid);
}
-static int vmw_cmd_dma(struct vmw_private *dev_priv,
- struct vmw_sw_context *sw_context,
- SVGA3dCmdHeader *header)
+static int vmw_translate_guest_ptr(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGAGuestPtr *ptr,
+ struct vmw_dma_buffer **vmw_bo_p)
{
- uint32_t handle;
struct vmw_dma_buffer *vmw_bo = NULL;
struct ttm_buffer_object *bo;
- struct vmw_surface *srf = NULL;
- struct vmw_dma_cmd {
- SVGA3dCmdHeader header;
- SVGA3dCmdSurfaceDMA dma;
- } *cmd;
+ uint32_t handle = ptr->gmrId;
struct vmw_relocation *reloc;
- int ret;
uint32_t cur_validate_node;
struct ttm_validate_buffer *val_buf;
+ int ret;
- cmd = container_of(header, struct vmw_dma_cmd, header);
- handle = cmd->dma.guest.ptr.gmrId;
ret = vmw_user_dmabuf_lookup(sw_context->tfile, handle, &vmw_bo);
if (unlikely(ret != 0)) {
DRM_ERROR("Could not find or use GMR region.\n");
@@ -209,14 +203,14 @@ static int vmw_cmd_dma(struct vmw_private *dev_priv,
bo = &vmw_bo->base;
if (unlikely(sw_context->cur_reloc >= VMWGFX_MAX_RELOCATIONS)) {
- DRM_ERROR("Max number of DMA commands per submission"
+ DRM_ERROR("Max number relocations per submission"
" exceeded\n");
ret = -EINVAL;
goto out_no_reloc;
}
reloc = &sw_context->relocs[sw_context->cur_reloc++];
- reloc->location = &cmd->dma.guest.ptr;
+ reloc->location = ptr;
cur_validate_node = vmw_dmabuf_validate_node(bo, sw_context->cur_val_buf);
if (unlikely(cur_validate_node >= VMWGFX_MAX_GMRS)) {
@@ -234,7 +228,89 @@ static int vmw_cmd_dma(struct vmw_private *dev_priv,
list_add_tail(&val_buf->head, &sw_context->validate_nodes);
++sw_context->cur_val_buf;
}
+ *vmw_bo_p = vmw_bo;
+ return 0;
+
+out_no_reloc:
+ vmw_dmabuf_unreference(&vmw_bo);
+ vmw_bo_p = NULL;
+ return ret;
+}
+
+static int vmw_cmd_end_query(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_dma_buffer *vmw_bo;
+ struct vmw_query_cmd {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdEndQuery q;
+ } *cmd;
+ int ret;
+
+ cmd = container_of(header, struct vmw_query_cmd, header);
+ ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
+ if (unlikely(ret != 0))
+ return ret;
+
+ ret = vmw_translate_guest_ptr(dev_priv, sw_context,
+ &cmd->q.guestResult,
+ &vmw_bo);
+ if (unlikely(ret != 0))
+ return ret;
+
+ vmw_dmabuf_unreference(&vmw_bo);
+ return 0;
+}
+static int vmw_cmd_wait_query(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_dma_buffer *vmw_bo;
+ struct vmw_query_cmd {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdWaitForQuery q;
+ } *cmd;
+ int ret;
+
+ cmd = container_of(header, struct vmw_query_cmd, header);
+ ret = vmw_cmd_cid_check(dev_priv, sw_context, header);
+ if (unlikely(ret != 0))
+ return ret;
+
+ ret = vmw_translate_guest_ptr(dev_priv, sw_context,
+ &cmd->q.guestResult,
+ &vmw_bo);
+ if (unlikely(ret != 0))
+ return ret;
+
+ vmw_dmabuf_unreference(&vmw_bo);
+ return 0;
+}
+
+
+static int vmw_cmd_dma(struct vmw_private *dev_priv,
+ struct vmw_sw_context *sw_context,
+ SVGA3dCmdHeader *header)
+{
+ struct vmw_dma_buffer *vmw_bo = NULL;
+ struct ttm_buffer_object *bo;
+ struct vmw_surface *srf = NULL;
+ struct vmw_dma_cmd {
+ SVGA3dCmdHeader header;
+ SVGA3dCmdSurfaceDMA dma;
+ } *cmd;
+ int ret;
+
+ cmd = container_of(header, struct vmw_dma_cmd, header);
+ ret = vmw_translate_guest_ptr(dev_priv, sw_context,
+ &cmd->dma.guest.ptr,
+ &vmw_bo);
+ if (unlikely(ret != 0))
+ return ret;
+
+ bo = &vmw_bo->base;
ret = vmw_user_surface_lookup_handle(dev_priv, sw_context->tfile,
cmd->dma.host.sid, &srf);
if (ret) {
@@ -379,8 +455,8 @@ static vmw_cmd_func vmw_cmd_funcs[SVGA_3D_CMD_MAX] = {
VMW_CMD_DEF(SVGA_3D_CMD_DRAW_PRIMITIVES, &vmw_cmd_draw),
VMW_CMD_DEF(SVGA_3D_CMD_SETSCISSORRECT, &vmw_cmd_cid_check),
VMW_CMD_DEF(SVGA_3D_CMD_BEGIN_QUERY, &vmw_cmd_cid_check),
- VMW_CMD_DEF(SVGA_3D_CMD_END_QUERY, &vmw_cmd_cid_check),
- VMW_CMD_DEF(SVGA_3D_CMD_WAIT_FOR_QUERY, &vmw_cmd_cid_check),
+ VMW_CMD_DEF(SVGA_3D_CMD_END_QUERY, &vmw_cmd_end_query),
+ VMW_CMD_DEF(SVGA_3D_CMD_WAIT_FOR_QUERY, &vmw_cmd_wait_query),
VMW_CMD_DEF(SVGA_3D_CMD_PRESENT_READBACK, &vmw_cmd_ok),
VMW_CMD_DEF(SVGA_3D_CMD_BLIT_SURFACE_TO_SCREEN,
&vmw_cmd_blt_surf_screen_check)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
index 4f4f6432be8..a93367041cd 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c
@@ -559,6 +559,9 @@ int vmw_fb_init(struct vmw_private *vmw_priv)
info->pixmap.scan_align = 1;
#endif
+ info->aperture_base = vmw_priv->vram_start;
+ info->aperture_size = vmw_priv->vram_size;
+
/*
* Dirty & Deferred IO
*/
diff --git a/drivers/gpu/vga/vgaarb.c b/drivers/gpu/vga/vgaarb.c
index 24b56dc5459..2f6cf69ecb3 100644
--- a/drivers/gpu/vga/vgaarb.c
+++ b/drivers/gpu/vga/vgaarb.c
@@ -961,7 +961,7 @@ static ssize_t vga_arb_write(struct file *file, const char __user * buf,
remaining -= 7;
pr_devel("client 0x%p called 'target'\n", priv);
/* if target is default */
- if (!strncmp(kbuf, "default", 7))
+ if (!strncmp(curr_pos, "default", 7))
pdev = pci_dev_get(vga_default_device());
else {
if (!vga_pci_str_to_vars(curr_pos, remaining,
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 24d90ea246c..71d4c070362 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -55,6 +55,12 @@ source "drivers/hid/usbhid/Kconfig"
menu "Special HID drivers"
depends on HID
+config HID_3M_PCT
+ tristate "3M PCT"
+ depends on USB_HID
+ ---help---
+ Support for 3M PCT touch screens.
+
config HID_A4TECH
tristate "A4 tech" if EMBEDDED
depends on USB_HID
@@ -183,6 +189,23 @@ config LOGIRUMBLEPAD2_FF
Say Y here if you want to enable force feedback support for Logitech
Rumblepad 2 devices.
+config LOGIG940_FF
+ bool "Logitech Flight System G940 force feedback support"
+ depends on HID_LOGITECH
+ select INPUT_FF_MEMLESS
+ help
+ Say Y here if you want to enable force feedback support for Logitech
+ Flight System G940 devices.
+
+config HID_MAGICMOUSE
+ tristate "Apple MagicMouse multi-touch support"
+ depends on BT_HIDP
+ ---help---
+ Support for the Apple Magic Mouse multi-touch.
+
+ Say Y here if you want support for the multi-touch features of the
+ Apple Wireless "Magic" Mouse.
+
config HID_MICROSOFT
tristate "Microsoft" if EMBEDDED
depends on USB_HID
@@ -190,6 +213,12 @@ config HID_MICROSOFT
---help---
Support for Microsoft devices that are not fully compliant with HID standard.
+config HID_MOSART
+ tristate "MosArt"
+ depends on USB_HID
+ ---help---
+ Support for MosArt dual-touch panels.
+
config HID_MONTEREY
tristate "Monterey" if EMBEDDED
depends on USB_HID
@@ -198,12 +227,18 @@ config HID_MONTEREY
Support for Monterey Genius KB29E.
config HID_NTRIG
- tristate "NTrig" if EMBEDDED
+ tristate "NTrig"
depends on USB_HID
- default !EMBEDDED
---help---
Support for N-Trig touch screen.
+config HID_ORTEK
+ tristate "Ortek" if EMBEDDED
+ depends on USB_HID
+ default !EMBEDDED
+ ---help---
+ Support for Ortek WKB-2000 wireless keyboard + mouse trackpad.
+
config HID_PANTHERLORD
tristate "Pantherlord support" if EMBEDDED
depends on USB_HID
@@ -227,6 +262,12 @@ config HID_PETALYNX
---help---
Support for Petalynx Maxter remote control.
+config HID_QUANTA
+ tristate "Quanta Optical Touch"
+ depends on USB_HID
+ ---help---
+ Support for Quanta Optical Touch dual-touch panels.
+
config HID_SAMSUNG
tristate "Samsung" if EMBEDDED
depends on USB_HID
@@ -241,6 +282,12 @@ config HID_SONY
---help---
Support for Sony PS3 controller.
+config HID_STANTUM
+ tristate "Stantum"
+ depends on USB_HID
+ ---help---
+ Support for Stantum multitouch panel.
+
config HID_SUNPLUS
tristate "Sunplus" if EMBEDDED
depends on USB_HID
@@ -305,9 +352,8 @@ config THRUSTMASTER_FF
Rumble Force or Force Feedback Wheel.
config HID_WACOM
- tristate "Wacom Bluetooth devices support" if EMBEDDED
+ tristate "Wacom Bluetooth devices support"
depends on BT_HIDP
- default !EMBEDDED
---help---
Support for Wacom Graphire Bluetooth tablet.
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 0de2dff5542..0b2618f092c 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -18,7 +18,11 @@ endif
ifdef CONFIG_LOGIRUMBLEPAD2_FF
hid-logitech-objs += hid-lg2ff.o
endif
+ifdef CONFIG_LOGIG940_FF
+ hid-logitech-objs += hid-lg3ff.o
+endif
+obj-$(CONFIG_HID_3M_PCT) += hid-3m-pct.o
obj-$(CONFIG_HID_A4TECH) += hid-a4tech.o
obj-$(CONFIG_HID_APPLE) += hid-apple.o
obj-$(CONFIG_HID_BELKIN) += hid-belkin.o
@@ -31,14 +35,19 @@ obj-$(CONFIG_HID_GYRATION) += hid-gyration.o
obj-$(CONFIG_HID_KENSINGTON) += hid-kensington.o
obj-$(CONFIG_HID_KYE) += hid-kye.o
obj-$(CONFIG_HID_LOGITECH) += hid-logitech.o
+obj-$(CONFIG_HID_MAGICMOUSE) += hid-magicmouse.o
obj-$(CONFIG_HID_MICROSOFT) += hid-microsoft.o
obj-$(CONFIG_HID_MONTEREY) += hid-monterey.o
+obj-$(CONFIG_HID_MOSART) += hid-mosart.o
obj-$(CONFIG_HID_NTRIG) += hid-ntrig.o
+obj-$(CONFIG_HID_ORTEK) += hid-ortek.o
+obj-$(CONFIG_HID_QUANTA) += hid-quanta.o
obj-$(CONFIG_HID_PANTHERLORD) += hid-pl.o
obj-$(CONFIG_HID_PETALYNX) += hid-petalynx.o
obj-$(CONFIG_HID_SAMSUNG) += hid-samsung.o
obj-$(CONFIG_HID_SMARTJOYPLUS) += hid-sjoy.o
obj-$(CONFIG_HID_SONY) += hid-sony.o
+obj-$(CONFIG_HID_STANTUM) += hid-stantum.o
obj-$(CONFIG_HID_SUNPLUS) += hid-sunplus.o
obj-$(CONFIG_HID_GREENASIA) += hid-gaff.o
obj-$(CONFIG_HID_THRUSTMASTER) += hid-tmff.o
diff --git a/drivers/hid/hid-3m-pct.c b/drivers/hid/hid-3m-pct.c
new file mode 100644
index 00000000000..2370aefc86b
--- /dev/null
+++ b/drivers/hid/hid-3m-pct.c
@@ -0,0 +1,290 @@
+/*
+ * HID driver for 3M PCT multitouch panels
+ *
+ * Copyright (c) 2009 Stephane Chatty <chatty@enac.fr>
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+
+MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
+MODULE_DESCRIPTION("3M PCT multitouch panels");
+MODULE_LICENSE("GPL");
+
+#include "hid-ids.h"
+
+struct mmm_finger {
+ __s32 x, y;
+ __u8 rank;
+ bool touch, valid;
+};
+
+struct mmm_data {
+ struct mmm_finger f[10];
+ __u8 curid, num;
+ bool touch, valid;
+};
+
+static int mmm_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+ struct hid_field *field, struct hid_usage *usage,
+ unsigned long **bit, int *max)
+{
+ switch (usage->hid & HID_USAGE_PAGE) {
+
+ case HID_UP_BUTTON:
+ return -1;
+
+ case HID_UP_GENDESK:
+ switch (usage->hid) {
+ case HID_GD_X:
+ hid_map_usage(hi, usage, bit, max,
+ EV_ABS, ABS_MT_POSITION_X);
+ /* touchscreen emulation */
+ input_set_abs_params(hi->input, ABS_X,
+ field->logical_minimum,
+ field->logical_maximum, 0, 0);
+ return 1;
+ case HID_GD_Y:
+ hid_map_usage(hi, usage, bit, max,
+ EV_ABS, ABS_MT_POSITION_Y);
+ /* touchscreen emulation */
+ input_set_abs_params(hi->input, ABS_Y,
+ field->logical_minimum,
+ field->logical_maximum, 0, 0);
+ return 1;
+ }
+ return 0;
+
+ case HID_UP_DIGITIZER:
+ switch (usage->hid) {
+ /* we do not want to map these: no input-oriented meaning */
+ case 0x14:
+ case 0x23:
+ case HID_DG_INPUTMODE:
+ case HID_DG_DEVICEINDEX:
+ case HID_DG_CONTACTCOUNT:
+ case HID_DG_CONTACTMAX:
+ case HID_DG_INRANGE:
+ case HID_DG_CONFIDENCE:
+ return -1;
+ case HID_DG_TIPSWITCH:
+ /* touchscreen emulation */
+ hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
+ return 1;
+ case HID_DG_CONTACTID:
+ hid_map_usage(hi, usage, bit, max,
+ EV_ABS, ABS_MT_TRACKING_ID);
+ return 1;
+ }
+ /* let hid-input decide for the others */
+ return 0;
+
+ case 0xff000000:
+ /* we do not want to map these: no input-oriented meaning */
+ return -1;
+ }
+
+ return 0;
+}
+
+static int mmm_input_mapped(struct hid_device *hdev, struct hid_input *hi,
+ struct hid_field *field, struct hid_usage *usage,
+ unsigned long **bit, int *max)
+{
+ if (usage->type == EV_KEY || usage->type == EV_ABS)
+ clear_bit(usage->code, *bit);
+
+ return 0;
+}
+
+/*
+ * this function is called when a whole packet has been received and processed,
+ * so that it can decide what to send to the input layer.
+ */
+static void mmm_filter_event(struct mmm_data *md, struct input_dev *input)
+{
+ struct mmm_finger *oldest = 0;
+ bool pressed = false, released = false;
+ int i;
+
+ /*
+ * we need to iterate on all fingers to decide if we have a press
+ * or a release event in our touchscreen emulation.
+ */
+ for (i = 0; i < 10; ++i) {
+ struct mmm_finger *f = &md->f[i];
+ if (!f->valid) {
+ /* this finger is just placeholder data, ignore */
+ } else if (f->touch) {
+ /* this finger is on the screen */
+ input_event(input, EV_ABS, ABS_MT_TRACKING_ID, i);
+ input_event(input, EV_ABS, ABS_MT_POSITION_X, f->x);
+ input_event(input, EV_ABS, ABS_MT_POSITION_Y, f->y);
+ input_mt_sync(input);
+ /*
+ * touchscreen emulation: maintain the age rank
+ * of this finger, decide if we have a press
+ */
+ if (f->rank == 0) {
+ f->rank = ++(md->num);
+ if (f->rank == 1)
+ pressed = true;
+ }
+ if (f->rank == 1)
+ oldest = f;
+ } else {
+ /* this finger took off the screen */
+ /* touchscreen emulation: maintain age rank of others */
+ int j;
+
+ for (j = 0; j < 10; ++j) {
+ struct mmm_finger *g = &md->f[j];
+ if (g->rank > f->rank) {
+ g->rank--;
+ if (g->rank == 1)
+ oldest = g;
+ }
+ }
+ f->rank = 0;
+ --(md->num);
+ if (md->num == 0)
+ released = true;
+ }
+ f->valid = 0;
+ }
+
+ /* touchscreen emulation */
+ if (oldest) {
+ if (pressed)
+ input_event(input, EV_KEY, BTN_TOUCH, 1);
+ input_event(input, EV_ABS, ABS_X, oldest->x);
+ input_event(input, EV_ABS, ABS_Y, oldest->y);
+ } else if (released) {
+ input_event(input, EV_KEY, BTN_TOUCH, 0);
+ }
+}
+
+/*
+ * this function is called upon all reports
+ * so that we can accumulate contact point information,
+ * and call input_mt_sync after each point.
+ */
+static int mmm_event(struct hid_device *hid, struct hid_field *field,
+ struct hid_usage *usage, __s32 value)
+{
+ struct mmm_data *md = hid_get_drvdata(hid);
+ /*
+ * strangely, this function can be called before
+ * field->hidinput is initialized!
+ */
+ if (hid->claimed & HID_CLAIMED_INPUT) {
+ struct input_dev *input = field->hidinput->input;
+ switch (usage->hid) {
+ case HID_DG_TIPSWITCH:
+ md->touch = value;
+ break;
+ case HID_DG_CONFIDENCE:
+ md->valid = value;
+ break;
+ case HID_DG_CONTACTID:
+ if (md->valid) {
+ md->curid = value;
+ md->f[value].touch = md->touch;
+ md->f[value].valid = 1;
+ }
+ break;
+ case HID_GD_X:
+ if (md->valid)
+ md->f[md->curid].x = value;
+ break;
+ case HID_GD_Y:
+ if (md->valid)
+ md->f[md->curid].y = value;
+ break;
+ case HID_DG_CONTACTCOUNT:
+ mmm_filter_event(md, input);
+ break;
+ }
+ }
+
+ /* we have handled the hidinput part, now remains hiddev */
+ if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
+ hid->hiddev_hid_event(hid, field, usage, value);
+
+ return 1;
+}
+
+static int mmm_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+ int ret;
+ struct mmm_data *md;
+
+ md = kzalloc(sizeof(struct mmm_data), GFP_KERNEL);
+ if (!md) {
+ dev_err(&hdev->dev, "cannot allocate 3M data\n");
+ return -ENOMEM;
+ }
+ hid_set_drvdata(hdev, md);
+
+ ret = hid_parse(hdev);
+ if (!ret)
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+
+ if (ret)
+ kfree(md);
+ return ret;
+}
+
+static void mmm_remove(struct hid_device *hdev)
+{
+ hid_hw_stop(hdev);
+ kfree(hid_get_drvdata(hdev));
+ hid_set_drvdata(hdev, NULL);
+}
+
+static const struct hid_device_id mmm_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, mmm_devices);
+
+static const struct hid_usage_id mmm_grabbed_usages[] = {
+ { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
+ { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
+};
+
+static struct hid_driver mmm_driver = {
+ .name = "3m-pct",
+ .id_table = mmm_devices,
+ .probe = mmm_probe,
+ .remove = mmm_remove,
+ .input_mapping = mmm_input_mapping,
+ .input_mapped = mmm_input_mapped,
+ .usage_table = mmm_grabbed_usages,
+ .event = mmm_event,
+};
+
+static int __init mmm_init(void)
+{
+ return hid_register_driver(&mmm_driver);
+}
+
+static void __exit mmm_exit(void)
+{
+ hid_unregister_driver(&mmm_driver);
+}
+
+module_init(mmm_init);
+module_exit(mmm_exit);
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c
index 5b4d66dc1a0..78286b184ac 100644
--- a/drivers/hid/hid-apple.c
+++ b/drivers/hid/hid-apple.c
@@ -40,6 +40,11 @@ module_param(fnmode, uint, 0644);
MODULE_PARM_DESC(fnmode, "Mode of fn key on Apple keyboards (0 = disabled, "
"[1] = fkeyslast, 2 = fkeysfirst)");
+static unsigned int iso_layout = 1;
+module_param(iso_layout, uint, 0644);
+MODULE_PARM_DESC(iso_layout, "Enable/Disable hardcoded ISO-layout of the keyboard. "
+ "(0 = disabled, [1] = enabled)");
+
struct apple_sc {
unsigned long quirks;
unsigned int fn_on;
@@ -199,11 +204,13 @@ static int hidinput_apple_event(struct hid_device *hid, struct input_dev *input,
}
}
- if (asc->quirks & APPLE_ISO_KEYBOARD) {
- trans = apple_find_translation(apple_iso_keyboard, usage->code);
- if (trans) {
- input_event(input, usage->type, trans->to, value);
- return 1;
+ if (iso_layout) {
+ if (asc->quirks & APPLE_ISO_KEYBOARD) {
+ trans = apple_find_translation(apple_iso_keyboard, usage->code);
+ if (trans) {
+ input_event(input, usage->type, trans->to, value);
+ return 1;
+ }
}
}
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index eabe5f87c6c..368fbb0c4ca 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -4,7 +4,7 @@
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
- * Copyright (c) 2006-2007 Jiri Kosina
+ * Copyright (c) 2006-2010 Jiri Kosina
*/
/*
@@ -51,7 +51,7 @@ EXPORT_SYMBOL_GPL(hid_debug);
* Register a new report for a device.
*/
-static struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
+struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id)
{
struct hid_report_enum *report_enum = device->report_enum + type;
struct hid_report *report;
@@ -75,6 +75,7 @@ static struct hid_report *hid_register_report(struct hid_device *device, unsigne
return report;
}
+EXPORT_SYMBOL_GPL(hid_register_report);
/*
* Register a new field for this report.
@@ -387,7 +388,8 @@ static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
__u32 data;
unsigned n;
- if (item->size == 0) {
+ /* Local delimiter could have value 0, which allows size to be 0 */
+ if (item->size == 0 && item->tag != HID_LOCAL_ITEM_TAG_DELIMITER) {
dbg_hid("item data expected for local item\n");
return -1;
}
@@ -1248,11 +1250,13 @@ EXPORT_SYMBOL_GPL(hid_disconnect);
/* a list of devices for which there is a specialized driver on HID bus */
static const struct hid_device_id hid_blacklist[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_3M, USB_DEVICE_ID_3M1968) },
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_WCP32PU) },
{ HID_USB_DEVICE(USB_VENDOR_ID_A4TECH, USB_DEVICE_ID_A4TECH_X5_005D) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ATV_IRCONTROL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_IRCONTROL4) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MIGHTYMOUSE) },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_ISO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER_ANSI) },
@@ -1324,6 +1328,7 @@ static const struct hid_device_id hid_blacklist[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL) },
@@ -1337,10 +1342,15 @@ static const struct hid_device_id hid_blacklist[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
{ HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
{ HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SAMSUNG, USB_DEVICE_ID_SAMSUNG_IR_REMOTE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SUNPLUS, USB_DEVICE_ID_SUNPLUS_WDESKTOP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb300) },
{ HID_USB_DEVICE(USB_VENDOR_ID_THRUSTMASTER, 0xb304) },
@@ -1543,8 +1553,9 @@ static const struct hid_device_id hid_ignore_list[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_AIPTEK, USB_DEVICE_ID_AIPTEK_24) },
{ HID_USB_DEVICE(USB_VENDOR_ID_AIRCABLE, USB_DEVICE_ID_AIRCABLE1) },
{ HID_USB_DEVICE(USB_VENDOR_ID_ALCOR, USB_DEVICE_ID_ALCOR_USBRS232) },
- { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_LCM)},
- { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_LCM2)},
+ { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT)},
+ { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)},
+ { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)},
{ HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) },
{ HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) },
{ HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) },
@@ -1661,8 +1672,6 @@ static const struct hid_device_id hid_ignore_list[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_PANJIT, 0x0004) },
{ HID_USB_DEVICE(USB_VENDOR_ID_PHILIPS, USB_DEVICE_ID_PHILIPS_IEEE802154_DONGLE) },
{ HID_USB_DEVICE(USB_VENDOR_ID_POWERCOM, USB_DEVICE_ID_POWERCOM_UPS) },
- { HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY1) },
- { HID_USB_DEVICE(USB_VENDOR_ID_TENX, USB_DEVICE_ID_TENX_IBUDDY2) },
{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_LABPRO) },
{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_GOTEMP) },
{ HID_USB_DEVICE(USB_VENDOR_ID_VERNIER, USB_DEVICE_ID_VERNIER_SKIP) },
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index 6abd0369aed..cd4ece6fdfb 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -864,13 +864,13 @@ static const char **names[EV_MAX + 1] = {
[EV_SND] = sounds, [EV_REP] = repeats,
};
-void hid_resolv_event(__u8 type, __u16 code, struct seq_file *f) {
-
+static void hid_resolv_event(__u8 type, __u16 code, struct seq_file *f)
+{
seq_printf(f, "%s.%s", events[type] ? events[type] : "?",
names[type] ? (names[type][code] ? names[type][code] : "?") : "?");
}
-void hid_dump_input_mapping(struct hid_device *hid, struct seq_file *f)
+static void hid_dump_input_mapping(struct hid_device *hid, struct seq_file *f)
{
int i, j, k;
struct hid_report *report;
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 010368e649e..72c05f90553 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -18,6 +18,9 @@
#ifndef HID_IDS_H_FILE
#define HID_IDS_H_FILE
+#define USB_VENDOR_ID_3M 0x0596
+#define USB_DEVICE_ID_3M1968 0x0500
+
#define USB_VENDOR_ID_A4TECH 0x09da
#define USB_DEVICE_ID_A4TECH_WCP32PU 0x0006
#define USB_DEVICE_ID_A4TECH_X5_005D 0x000a
@@ -56,6 +59,7 @@
#define USB_VENDOR_ID_APPLE 0x05ac
#define USB_DEVICE_ID_APPLE_MIGHTYMOUSE 0x0304
+#define USB_DEVICE_ID_APPLE_MAGICMOUSE 0x030d
#define USB_DEVICE_ID_APPLE_FOUNTAIN_ANSI 0x020e
#define USB_DEVICE_ID_APPLE_FOUNTAIN_ISO 0x020f
#define USB_DEVICE_ID_APPLE_GEYSER_ANSI 0x0214
@@ -96,9 +100,12 @@
#define USB_DEVICE_ID_APPLE_ATV_IRCONTROL 0x8241
#define USB_DEVICE_ID_APPLE_IRCONTROL4 0x8242
-#define USB_VENDOR_ID_ASUS 0x0b05
-#define USB_DEVICE_ID_ASUS_LCM 0x1726
-#define USB_DEVICE_ID_ASUS_LCM2 0x175b
+#define USB_VENDOR_ID_ASUS 0x0486
+#define USB_DEVICE_ID_ASUS_T91MT 0x0185
+
+#define USB_VENDOR_ID_ASUSTEK 0x0b05
+#define USB_DEVICE_ID_ASUSTEK_LCM 0x1726
+#define USB_DEVICE_ID_ASUSTEK_LCM2 0x175b
#define USB_VENDOR_ID_ATEN 0x0557
#define USB_DEVICE_ID_ATEN_UC100KM 0x2004
@@ -169,6 +176,9 @@
#define USB_VENDOR_ID_ESSENTIAL_REALITY 0x0d7f
#define USB_DEVICE_ID_ESSENTIAL_REALITY_P5 0x0100
+#define USB_VENDOR_ID_ETURBOTOUCH 0x22b9
+#define USB_DEVICE_ID_ETURBOTOUCH 0x0006
+
#define USB_VENDOR_ID_ETT 0x0664
#define USB_DEVICE_ID_TC5UH 0x0309
@@ -303,6 +313,7 @@
#define USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2 0xc219
#define USB_DEVICE_ID_LOGITECH_WINGMAN_F3D 0xc283
#define USB_DEVICE_ID_LOGITECH_FORCE3D_PRO 0xc286
+#define USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940 0xc287
#define USB_DEVICE_ID_LOGITECH_WHEEL 0xc294
#define USB_DEVICE_ID_LOGITECH_WINGMAN_FFG 0xc293
#define USB_DEVICE_ID_LOGITECH_MOMO_WHEEL 0xc295
@@ -365,6 +376,9 @@
#define USB_VENDOR_ID_ONTRAK 0x0a07
#define USB_DEVICE_ID_ONTRAK_ADU100 0x0064
+#define USB_VENDOR_ID_ORTEK 0x05a4
+#define USB_DEVICE_ID_ORTEK_WKB2000 0x2000
+
#define USB_VENDOR_ID_PANJIT 0x134c
#define USB_VENDOR_ID_PANTHERLORD 0x0810
@@ -382,9 +396,16 @@
#define USB_VENDOR_ID_POWERCOM 0x0d9f
#define USB_DEVICE_ID_POWERCOM_UPS 0x0002
+#define USB_VENDOR_ID_PRODIGE 0x05af
+#define USB_DEVICE_ID_PRODIGE_CORDLESS 0x3062
+
#define USB_VENDOR_ID_SAITEK 0x06a3
#define USB_DEVICE_ID_SAITEK_RUMBLEPAD 0xff17
+#define USB_VENDOR_ID_QUANTA 0x0408
+#define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH 0x3000
+#define USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN 0x3001
+
#define USB_VENDOR_ID_SAMSUNG 0x0419
#define USB_DEVICE_ID_SAMSUNG_IR_REMOTE 0x0001
@@ -396,18 +417,20 @@
#define USB_DEVICE_ID_SOUNDGRAPH_IMON_FIRST 0x0034
#define USB_DEVICE_ID_SOUNDGRAPH_IMON_LAST 0x0046
+#define USB_VENDOR_ID_STANTUM 0x1f87
+#define USB_DEVICE_ID_MTP 0x0002
+
#define USB_VENDOR_ID_SUN 0x0430
#define USB_DEVICE_ID_RARITAN_KVM_DONGLE 0xcdab
#define USB_VENDOR_ID_SUNPLUS 0x04fc
#define USB_DEVICE_ID_SUNPLUS_WDESKTOP 0x05d8
-#define USB_VENDOR_ID_TENX 0x1130
-#define USB_DEVICE_ID_TENX_IBUDDY1 0x0001
-#define USB_DEVICE_ID_TENX_IBUDDY2 0x0002
-
#define USB_VENDOR_ID_THRUSTMASTER 0x044f
+#define USB_VENDOR_ID_TOUCHPACK 0x1bfd
+#define USB_DEVICE_ID_TOUCHPACK_RTS 0x1688
+
#define USB_VENDOR_ID_TOPMAX 0x0663
#define USB_DEVICE_ID_TOPMAX_COBRAPAD 0x0103
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index 5862b0f3b55..79d9edd0bdf 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -1,6 +1,6 @@
/*
* Copyright (c) 2000-2001 Vojtech Pavlik
- * Copyright (c) 2006-2007 Jiri Kosina
+ * Copyright (c) 2006-2010 Jiri Kosina
*
* HID to Linux Input mapping
*/
@@ -193,12 +193,17 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
break;
case HID_UP_BUTTON:
- code = ((usage->hid - 1) & 0xf);
+ code = ((usage->hid - 1) & HID_USAGE);
switch (field->application) {
case HID_GD_MOUSE:
case HID_GD_POINTER: code += 0x110; break;
- case HID_GD_JOYSTICK: code += 0x120; break;
+ case HID_GD_JOYSTICK:
+ if (code <= 0xf)
+ code += BTN_JOYSTICK;
+ else
+ code += BTN_TRIGGER_HAPPY;
+ break;
case HID_GD_GAMEPAD: code += 0x130; break;
default:
switch (field->physical) {
@@ -400,6 +405,7 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
case 0x192: map_key_clear(KEY_CALC); break;
case 0x194: map_key_clear(KEY_FILE); break;
case 0x196: map_key_clear(KEY_WWW); break;
+ case 0x199: map_key_clear(KEY_CHAT); break;
case 0x19c: map_key_clear(KEY_LOGOFF); break;
case 0x19e: map_key_clear(KEY_COFFEE); break;
case 0x1a6: map_key_clear(KEY_HELP); break;
diff --git a/drivers/hid/hid-lg.c b/drivers/hid/hid-lg.c
index 9fcd3d017ab..3677c9037a1 100644
--- a/drivers/hid/hid-lg.c
+++ b/drivers/hid/hid-lg.c
@@ -34,6 +34,7 @@
#define LG_FF 0x200
#define LG_FF2 0x400
#define LG_RDESC_REL_ABS 0x800
+#define LG_FF3 0x1000
/*
* Certain Logitech keyboards send in report #3 keys which are far
@@ -266,7 +267,7 @@ static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
goto err_free;
}
- if (quirks & (LG_FF | LG_FF2))
+ if (quirks & (LG_FF | LG_FF2 | LG_FF3))
connect_mask &= ~HID_CONNECT_FF;
ret = hid_hw_start(hdev, connect_mask);
@@ -279,6 +280,8 @@ static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
lgff_init(hdev);
if (quirks & LG_FF2)
lg2ff_init(hdev);
+ if (quirks & LG_FF3)
+ lg3ff_init(hdev);
return 0;
err_free:
@@ -331,6 +334,8 @@ static const struct hid_device_id lg_devices[] = {
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2),
.driver_data = LG_FF2 },
+ { HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940),
+ .driver_data = LG_FF3 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR),
.driver_data = LG_RDESC_REL_ABS },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER),
diff --git a/drivers/hid/hid-lg.h b/drivers/hid/hid-lg.h
index bf31592eaf7..ce2ac867262 100644
--- a/drivers/hid/hid-lg.h
+++ b/drivers/hid/hid-lg.h
@@ -13,4 +13,10 @@ int lg2ff_init(struct hid_device *hdev);
static inline int lg2ff_init(struct hid_device *hdev) { return -1; }
#endif
+#ifdef CONFIG_LOGIG940_FF
+int lg3ff_init(struct hid_device *hdev);
+#else
+static inline int lg3ff_init(struct hid_device *hdev) { return -1; }
+#endif
+
#endif
diff --git a/drivers/hid/hid-lg3ff.c b/drivers/hid/hid-lg3ff.c
new file mode 100644
index 00000000000..4002832ee4a
--- /dev/null
+++ b/drivers/hid/hid-lg3ff.c
@@ -0,0 +1,176 @@
+/*
+ * Force feedback support for Logitech Flight System G940
+ *
+ * Copyright (c) 2009 Gary Stein <LordCnidarian@gmail.com>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+
+#include <linux/input.h>
+#include <linux/usb.h>
+#include <linux/hid.h>
+
+#include "usbhid/usbhid.h"
+#include "hid-lg.h"
+
+/*
+ * G940 Theory of Operation (from experimentation)
+ *
+ * There are 63 fields (only 3 of them currently used)
+ * 0 - seems to be command field
+ * 1 - 30 deal with the x axis
+ * 31 -60 deal with the y axis
+ *
+ * Field 1 is x axis constant force
+ * Field 31 is y axis constant force
+ *
+ * other interesting fields 1,2,3,4 on x axis
+ * (same for 31,32,33,34 on y axis)
+ *
+ * 0 0 127 127 makes the joystick autocenter hard
+ *
+ * 127 0 127 127 makes the joystick loose on the right,
+ * but stops all movemnt left
+ *
+ * -127 0 -127 -127 makes the joystick loose on the left,
+ * but stops all movement right
+ *
+ * 0 0 -127 -127 makes the joystick rattle very hard
+ *
+ * I'm sure these are effects that I don't know enough about them
+ */
+
+struct lg3ff_device {
+ struct hid_report *report;
+};
+
+static int hid_lg3ff_play(struct input_dev *dev, void *data,
+ struct ff_effect *effect)
+{
+ struct hid_device *hid = input_get_drvdata(dev);
+ struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+ int x, y;
+
+/*
+ * Maxusage should always be 63 (maximum fields)
+ * likely a better way to ensure this data is clean
+ */
+ memset(report->field[0]->value, 0, sizeof(__s32)*report->field[0]->maxusage);
+
+ switch (effect->type) {
+ case FF_CONSTANT:
+/*
+ * Already clamped in ff_memless
+ * 0 is center (different then other logitech)
+ */
+ x = effect->u.ramp.start_level;
+ y = effect->u.ramp.end_level;
+
+ /* send command byte */
+ report->field[0]->value[0] = 0x51;
+
+/*
+ * Sign backwards from other Force3d pro
+ * which get recast here in two's complement 8 bits
+ */
+ report->field[0]->value[1] = (unsigned char)(-x);
+ report->field[0]->value[31] = (unsigned char)(-y);
+
+ usbhid_submit_report(hid, report, USB_DIR_OUT);
+ break;
+ }
+ return 0;
+}
+static void hid_lg3ff_set_autocenter(struct input_dev *dev, u16 magnitude)
+{
+ struct hid_device *hid = input_get_drvdata(dev);
+ struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct hid_report *report = list_entry(report_list->next, struct hid_report, list);
+
+/*
+ * Auto Centering probed from device
+ * NOTE: deadman's switch on G940 must be covered
+ * for effects to work
+ */
+ report->field[0]->value[0] = 0x51;
+ report->field[0]->value[1] = 0x00;
+ report->field[0]->value[2] = 0x00;
+ report->field[0]->value[3] = 0x7F;
+ report->field[0]->value[4] = 0x7F;
+ report->field[0]->value[31] = 0x00;
+ report->field[0]->value[32] = 0x00;
+ report->field[0]->value[33] = 0x7F;
+ report->field[0]->value[34] = 0x7F;
+
+ usbhid_submit_report(hid, report, USB_DIR_OUT);
+}
+
+
+static const signed short ff3_joystick_ac[] = {
+ FF_CONSTANT,
+ FF_AUTOCENTER,
+ -1
+};
+
+int lg3ff_init(struct hid_device *hid)
+{
+ struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
+ struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct input_dev *dev = hidinput->input;
+ struct hid_report *report;
+ struct hid_field *field;
+ const signed short *ff_bits = ff3_joystick_ac;
+ int error;
+ int i;
+
+ /* Find the report to use */
+ if (list_empty(report_list)) {
+ err_hid("No output report found");
+ return -1;
+ }
+
+ /* Check that the report looks ok */
+ report = list_entry(report_list->next, struct hid_report, list);
+ if (!report) {
+ err_hid("NULL output report");
+ return -1;
+ }
+
+ field = report->field[0];
+ if (!field) {
+ err_hid("NULL field");
+ return -1;
+ }
+
+ /* Assume single fixed device G940 */
+ for (i = 0; ff_bits[i] >= 0; i++)
+ set_bit(ff_bits[i], dev->ffbit);
+
+ error = input_ff_create_memless(dev, NULL, hid_lg3ff_play);
+ if (error)
+ return error;
+
+ if (test_bit(FF_AUTOCENTER, dev->ffbit))
+ dev->ff->set_autocenter = hid_lg3ff_set_autocenter;
+
+ dev_info(&hid->dev, "Force feedback for Logitech Flight System G940 by "
+ "Gary Stein <LordCnidarian@gmail.com>\n");
+ return 0;
+}
+
diff --git a/drivers/hid/hid-lgff.c b/drivers/hid/hid-lgff.c
index 987abebe082..61142b76a9b 100644
--- a/drivers/hid/hid-lgff.c
+++ b/drivers/hid/hid-lgff.c
@@ -67,6 +67,7 @@ static const struct dev_type devices[] = {
{ 0x046d, 0xc219, ff_rumble },
{ 0x046d, 0xc283, ff_joystick },
{ 0x046d, 0xc286, ff_joystick_ac },
+ { 0x046d, 0xc287, ff_joystick_ac },
{ 0x046d, 0xc293, ff_joystick },
{ 0x046d, 0xc294, ff_wheel },
{ 0x046d, 0xc295, ff_joystick },
diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c
new file mode 100644
index 00000000000..4a3a94f2b10
--- /dev/null
+++ b/drivers/hid/hid-magicmouse.c
@@ -0,0 +1,449 @@
+/*
+ * Apple "Magic" Wireless Mouse driver
+ *
+ * Copyright (c) 2010 Michael Poole <mdpoole@troilus.org>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+
+#include "hid-ids.h"
+
+static bool emulate_3button = true;
+module_param(emulate_3button, bool, 0644);
+MODULE_PARM_DESC(emulate_3button, "Emulate a middle button");
+
+static int middle_button_start = -350;
+static int middle_button_stop = +350;
+
+static bool emulate_scroll_wheel = true;
+module_param(emulate_scroll_wheel, bool, 0644);
+MODULE_PARM_DESC(emulate_scroll_wheel, "Emulate a scroll wheel");
+
+static bool report_touches = true;
+module_param(report_touches, bool, 0644);
+MODULE_PARM_DESC(report_touches, "Emit touch records (otherwise, only use them for emulation)");
+
+static bool report_undeciphered;
+module_param(report_undeciphered, bool, 0644);
+MODULE_PARM_DESC(report_undeciphered, "Report undeciphered multi-touch state field using a MSC_RAW event");
+
+#define TOUCH_REPORT_ID 0x29
+/* These definitions are not precise, but they're close enough. (Bits
+ * 0x03 seem to indicate the aspect ratio of the touch, bits 0x70 seem
+ * to be some kind of bit mask -- 0x20 may be a near-field reading,
+ * and 0x40 is actual contact, and 0x10 may be a start/stop or change
+ * indication.)
+ */
+#define TOUCH_STATE_MASK 0xf0
+#define TOUCH_STATE_NONE 0x00
+#define TOUCH_STATE_START 0x30
+#define TOUCH_STATE_DRAG 0x40
+
+/**
+ * struct magicmouse_sc - Tracks Magic Mouse-specific data.
+ * @input: Input device through which we report events.
+ * @quirks: Currently unused.
+ * @last_timestamp: Timestamp from most recent (18-bit) touch report
+ * (units of milliseconds over short windows, but seems to
+ * increase faster when there are no touches).
+ * @delta_time: 18-bit difference between the two most recent touch
+ * reports from the mouse.
+ * @ntouches: Number of touches in most recent touch report.
+ * @scroll_accel: Number of consecutive scroll motions.
+ * @scroll_jiffies: Time of last scroll motion.
+ * @touches: Most recent data for a touch, indexed by tracking ID.
+ * @tracking_ids: Mapping of current touch input data to @touches.
+ */
+struct magicmouse_sc {
+ struct input_dev *input;
+ unsigned long quirks;
+
+ int last_timestamp;
+ int delta_time;
+ int ntouches;
+ int scroll_accel;
+ unsigned long scroll_jiffies;
+
+ struct {
+ short x;
+ short y;
+ short scroll_y;
+ u8 size;
+ } touches[16];
+ int tracking_ids[16];
+};
+
+static int magicmouse_firm_touch(struct magicmouse_sc *msc)
+{
+ int touch = -1;
+ int ii;
+
+ /* If there is only one "firm" touch, set touch to its
+ * tracking ID.
+ */
+ for (ii = 0; ii < msc->ntouches; ii++) {
+ int idx = msc->tracking_ids[ii];
+ if (msc->touches[idx].size < 8) {
+ /* Ignore this touch. */
+ } else if (touch >= 0) {
+ touch = -1;
+ break;
+ } else {
+ touch = idx;
+ }
+ }
+
+ return touch;
+}
+
+static void magicmouse_emit_buttons(struct magicmouse_sc *msc, int state)
+{
+ int last_state = test_bit(BTN_LEFT, msc->input->key) << 0 |
+ test_bit(BTN_RIGHT, msc->input->key) << 1 |
+ test_bit(BTN_MIDDLE, msc->input->key) << 2;
+
+ if (emulate_3button) {
+ int id;
+
+ /* If some button was pressed before, keep it held
+ * down. Otherwise, if there's exactly one firm
+ * touch, use that to override the mouse's guess.
+ */
+ if (state == 0) {
+ /* The button was released. */
+ } else if (last_state != 0) {
+ state = last_state;
+ } else if ((id = magicmouse_firm_touch(msc)) >= 0) {
+ int x = msc->touches[id].x;
+ if (x < middle_button_start)
+ state = 1;
+ else if (x > middle_button_stop)
+ state = 2;
+ else
+ state = 4;
+ } /* else: we keep the mouse's guess */
+
+ input_report_key(msc->input, BTN_MIDDLE, state & 4);
+ }
+
+ input_report_key(msc->input, BTN_LEFT, state & 1);
+ input_report_key(msc->input, BTN_RIGHT, state & 2);
+
+ if (state != last_state)
+ msc->scroll_accel = 0;
+}
+
+static void magicmouse_emit_touch(struct magicmouse_sc *msc, int raw_id, u8 *tdata)
+{
+ struct input_dev *input = msc->input;
+ __s32 x_y = tdata[0] << 8 | tdata[1] << 16 | tdata[2] << 24;
+ int misc = tdata[5] | tdata[6] << 8;
+ int id = (misc >> 6) & 15;
+ int x = x_y << 12 >> 20;
+ int y = -(x_y >> 20);
+
+ /* Store tracking ID and other fields. */
+ msc->tracking_ids[raw_id] = id;
+ msc->touches[id].x = x;
+ msc->touches[id].y = y;
+ msc->touches[id].size = misc & 63;
+
+ /* If requested, emulate a scroll wheel by detecting small
+ * vertical touch motions along the middle of the mouse.
+ */
+ if (emulate_scroll_wheel &&
+ middle_button_start < x && x < middle_button_stop) {
+ static const int accel_profile[] = {
+ 256, 228, 192, 160, 128, 96, 64, 32,
+ };
+ unsigned long now = jiffies;
+ int step = msc->touches[id].scroll_y - y;
+
+ /* Reset acceleration after half a second. */
+ if (time_after(now, msc->scroll_jiffies + HZ / 2))
+ msc->scroll_accel = 0;
+
+ /* Calculate and apply the scroll motion. */
+ switch (tdata[7] & TOUCH_STATE_MASK) {
+ case TOUCH_STATE_START:
+ msc->touches[id].scroll_y = y;
+ msc->scroll_accel = min_t(int, msc->scroll_accel + 1,
+ ARRAY_SIZE(accel_profile) - 1);
+ break;
+ case TOUCH_STATE_DRAG:
+ step = step / accel_profile[msc->scroll_accel];
+ if (step != 0) {
+ msc->touches[id].scroll_y = y;
+ msc->scroll_jiffies = now;
+ input_report_rel(input, REL_WHEEL, step);
+ }
+ break;
+ }
+ }
+
+ /* Generate the input events for this touch. */
+ if (report_touches) {
+ int orientation = (misc >> 10) - 32;
+
+ input_report_abs(input, ABS_MT_TRACKING_ID, id);
+ input_report_abs(input, ABS_MT_TOUCH_MAJOR, tdata[3]);
+ input_report_abs(input, ABS_MT_TOUCH_MINOR, tdata[4]);
+ input_report_abs(input, ABS_MT_ORIENTATION, orientation);
+ input_report_abs(input, ABS_MT_POSITION_X, x);
+ input_report_abs(input, ABS_MT_POSITION_Y, y);
+
+ if (report_undeciphered)
+ input_event(input, EV_MSC, MSC_RAW, tdata[7]);
+
+ input_mt_sync(input);
+ }
+}
+
+static int magicmouse_raw_event(struct hid_device *hdev,
+ struct hid_report *report, u8 *data, int size)
+{
+ struct magicmouse_sc *msc = hid_get_drvdata(hdev);
+ struct input_dev *input = msc->input;
+ int x, y, ts, ii, clicks;
+
+ switch (data[0]) {
+ case 0x10:
+ if (size != 6)
+ return 0;
+ x = (__s16)(data[2] | data[3] << 8);
+ y = (__s16)(data[4] | data[5] << 8);
+ clicks = data[1];
+ break;
+ case TOUCH_REPORT_ID:
+ /* Expect six bytes of prefix, and N*8 bytes of touch data. */
+ if (size < 6 || ((size - 6) % 8) != 0)
+ return 0;
+ ts = data[3] >> 6 | data[4] << 2 | data[5] << 10;
+ msc->delta_time = (ts - msc->last_timestamp) & 0x3ffff;
+ msc->last_timestamp = ts;
+ msc->ntouches = (size - 6) / 8;
+ for (ii = 0; ii < msc->ntouches; ii++)
+ magicmouse_emit_touch(msc, ii, data + ii * 8 + 6);
+ /* When emulating three-button mode, it is important
+ * to have the current touch information before
+ * generating a click event.
+ */
+ x = (signed char)data[1];
+ y = (signed char)data[2];
+ clicks = data[3];
+ break;
+ case 0x20: /* Theoretically battery status (0-100), but I have
+ * never seen it -- maybe it is only upon request.
+ */
+ case 0x60: /* Unknown, maybe laser on/off. */
+ case 0x61: /* Laser reflection status change.
+ * data[1]: 0 = spotted, 1 = lost
+ */
+ default:
+ return 0;
+ }
+
+ magicmouse_emit_buttons(msc, clicks & 3);
+ input_report_rel(input, REL_X, x);
+ input_report_rel(input, REL_Y, y);
+ input_sync(input);
+ return 1;
+}
+
+static int magicmouse_input_open(struct input_dev *dev)
+{
+ struct hid_device *hid = input_get_drvdata(dev);
+
+ return hid->ll_driver->open(hid);
+}
+
+static void magicmouse_input_close(struct input_dev *dev)
+{
+ struct hid_device *hid = input_get_drvdata(dev);
+
+ hid->ll_driver->close(hid);
+}
+
+static void magicmouse_setup_input(struct input_dev *input, struct hid_device *hdev)
+{
+ input_set_drvdata(input, hdev);
+ input->event = hdev->ll_driver->hidinput_input_event;
+ input->open = magicmouse_input_open;
+ input->close = magicmouse_input_close;
+
+ input->name = hdev->name;
+ input->phys = hdev->phys;
+ input->uniq = hdev->uniq;
+ input->id.bustype = hdev->bus;
+ input->id.vendor = hdev->vendor;
+ input->id.product = hdev->product;
+ input->id.version = hdev->version;
+ input->dev.parent = hdev->dev.parent;
+
+ __set_bit(EV_KEY, input->evbit);
+ __set_bit(BTN_LEFT, input->keybit);
+ __set_bit(BTN_RIGHT, input->keybit);
+ if (emulate_3button)
+ __set_bit(BTN_MIDDLE, input->keybit);
+ __set_bit(BTN_TOOL_FINGER, input->keybit);
+
+ __set_bit(EV_REL, input->evbit);
+ __set_bit(REL_X, input->relbit);
+ __set_bit(REL_Y, input->relbit);
+ if (emulate_scroll_wheel)
+ __set_bit(REL_WHEEL, input->relbit);
+
+ if (report_touches) {
+ __set_bit(EV_ABS, input->evbit);
+
+ input_set_abs_params(input, ABS_MT_TRACKING_ID, 0, 15, 0, 0);
+ input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 255, 4, 0);
+ input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 255, 4, 0);
+ input_set_abs_params(input, ABS_MT_ORIENTATION, -32, 31, 1, 0);
+ input_set_abs_params(input, ABS_MT_POSITION_X, -1100, 1358,
+ 4, 0);
+ /* Note: Touch Y position from the device is inverted relative
+ * to how pointer motion is reported (and relative to how USB
+ * HID recommends the coordinates work). This driver keeps
+ * the origin at the same position, and just uses the additive
+ * inverse of the reported Y.
+ */
+ input_set_abs_params(input, ABS_MT_POSITION_Y, -1589, 2047,
+ 4, 0);
+ }
+
+ if (report_undeciphered) {
+ __set_bit(EV_MSC, input->evbit);
+ __set_bit(MSC_RAW, input->mscbit);
+ }
+}
+
+static int magicmouse_probe(struct hid_device *hdev,
+ const struct hid_device_id *id)
+{
+ __u8 feature_1[] = { 0xd7, 0x01 };
+ __u8 feature_2[] = { 0xf8, 0x01, 0x32 };
+ struct input_dev *input;
+ struct magicmouse_sc *msc;
+ struct hid_report *report;
+ int ret;
+
+ msc = kzalloc(sizeof(*msc), GFP_KERNEL);
+ if (msc == NULL) {
+ dev_err(&hdev->dev, "can't alloc magicmouse descriptor\n");
+ return -ENOMEM;
+ }
+
+ msc->quirks = id->driver_data;
+ hid_set_drvdata(hdev, msc);
+
+ ret = hid_parse(hdev);
+ if (ret) {
+ dev_err(&hdev->dev, "magicmouse hid parse failed\n");
+ goto err_free;
+ }
+
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+ if (ret) {
+ dev_err(&hdev->dev, "magicmouse hw start failed\n");
+ goto err_free;
+ }
+
+ report = hid_register_report(hdev, HID_INPUT_REPORT, TOUCH_REPORT_ID);
+ if (!report) {
+ dev_err(&hdev->dev, "unable to register touch report\n");
+ ret = -ENOMEM;
+ goto err_stop_hw;
+ }
+ report->size = 6;
+
+ ret = hdev->hid_output_raw_report(hdev, feature_1, sizeof(feature_1),
+ HID_FEATURE_REPORT);
+ if (ret != sizeof(feature_1)) {
+ dev_err(&hdev->dev, "unable to request touch data (1:%d)\n",
+ ret);
+ goto err_stop_hw;
+ }
+ ret = hdev->hid_output_raw_report(hdev, feature_2,
+ sizeof(feature_2), HID_FEATURE_REPORT);
+ if (ret != sizeof(feature_2)) {
+ dev_err(&hdev->dev, "unable to request touch data (2:%d)\n",
+ ret);
+ goto err_stop_hw;
+ }
+
+ input = input_allocate_device();
+ if (!input) {
+ dev_err(&hdev->dev, "can't alloc input device\n");
+ ret = -ENOMEM;
+ goto err_stop_hw;
+ }
+ magicmouse_setup_input(input, hdev);
+
+ ret = input_register_device(input);
+ if (ret) {
+ dev_err(&hdev->dev, "input device registration failed\n");
+ goto err_input;
+ }
+ msc->input = input;
+
+ return 0;
+err_input:
+ input_free_device(input);
+err_stop_hw:
+ hid_hw_stop(hdev);
+err_free:
+ kfree(msc);
+ return ret;
+}
+
+static void magicmouse_remove(struct hid_device *hdev)
+{
+ hid_hw_stop(hdev);
+ kfree(hid_get_drvdata(hdev));
+}
+
+static const struct hid_device_id magic_mice[] = {
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_MAGICMOUSE),
+ .driver_data = 0 },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, magic_mice);
+
+static struct hid_driver magicmouse_driver = {
+ .name = "magicmouse",
+ .id_table = magic_mice,
+ .probe = magicmouse_probe,
+ .remove = magicmouse_remove,
+ .raw_event = magicmouse_raw_event,
+};
+
+static int __init magicmouse_init(void)
+{
+ int ret;
+
+ ret = hid_register_driver(&magicmouse_driver);
+ if (ret)
+ printk(KERN_ERR "can't register magicmouse driver\n");
+
+ return ret;
+}
+
+static void __exit magicmouse_exit(void)
+{
+ hid_unregister_driver(&magicmouse_driver);
+}
+
+module_init(magicmouse_init);
+module_exit(magicmouse_exit);
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/hid-mosart.c b/drivers/hid/hid-mosart.c
new file mode 100644
index 00000000000..c8718168fe4
--- /dev/null
+++ b/drivers/hid/hid-mosart.c
@@ -0,0 +1,273 @@
+/*
+ * HID driver for the multitouch panel on the ASUS EeePC T91MT
+ *
+ * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
+ * Copyright (c) 2010 Teemu Tuominen <teemu.tuominen@cybercom.com>
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/usb.h>
+#include "usbhid/usbhid.h"
+
+MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
+MODULE_DESCRIPTION("MosArt dual-touch panel");
+MODULE_LICENSE("GPL");
+
+#include "hid-ids.h"
+
+struct mosart_data {
+ __u16 x, y;
+ __u8 id;
+ bool valid; /* valid finger data, or just placeholder? */
+ bool first; /* is this the first finger in this frame? */
+ bool activity_now; /* at least one active finger in this frame? */
+ bool activity; /* at least one active finger previously? */
+};
+
+static int mosart_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+ struct hid_field *field, struct hid_usage *usage,
+ unsigned long **bit, int *max)
+{
+ switch (usage->hid & HID_USAGE_PAGE) {
+
+ case HID_UP_GENDESK:
+ switch (usage->hid) {
+ case HID_GD_X:
+ hid_map_usage(hi, usage, bit, max,
+ EV_ABS, ABS_MT_POSITION_X);
+ /* touchscreen emulation */
+ input_set_abs_params(hi->input, ABS_X,
+ field->logical_minimum,
+ field->logical_maximum, 0, 0);
+ return 1;
+ case HID_GD_Y:
+ hid_map_usage(hi, usage, bit, max,
+ EV_ABS, ABS_MT_POSITION_Y);
+ /* touchscreen emulation */
+ input_set_abs_params(hi->input, ABS_Y,
+ field->logical_minimum,
+ field->logical_maximum, 0, 0);
+ return 1;
+ }
+ return 0;
+
+ case HID_UP_DIGITIZER:
+ switch (usage->hid) {
+ case HID_DG_CONFIDENCE:
+ case HID_DG_TIPSWITCH:
+ case HID_DG_INPUTMODE:
+ case HID_DG_DEVICEINDEX:
+ case HID_DG_CONTACTCOUNT:
+ case HID_DG_CONTACTMAX:
+ case HID_DG_TIPPRESSURE:
+ case HID_DG_WIDTH:
+ case HID_DG_HEIGHT:
+ return -1;
+ case HID_DG_INRANGE:
+ /* touchscreen emulation */
+ hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
+ return 1;
+
+ case HID_DG_CONTACTID:
+ hid_map_usage(hi, usage, bit, max,
+ EV_ABS, ABS_MT_TRACKING_ID);
+ return 1;
+
+ }
+ return 0;
+
+ case 0xff000000:
+ /* ignore HID features */
+ return -1;
+ }
+
+ return 0;
+}
+
+static int mosart_input_mapped(struct hid_device *hdev, struct hid_input *hi,
+ struct hid_field *field, struct hid_usage *usage,
+ unsigned long **bit, int *max)
+{
+ if (usage->type == EV_KEY || usage->type == EV_ABS)
+ clear_bit(usage->code, *bit);
+
+ return 0;
+}
+
+/*
+ * this function is called when a whole finger has been parsed,
+ * so that it can decide what to send to the input layer.
+ */
+static void mosart_filter_event(struct mosart_data *td, struct input_dev *input)
+{
+ td->first = !td->first; /* touchscreen emulation */
+
+ if (!td->valid) {
+ /*
+ * touchscreen emulation: if no finger in this frame is valid
+ * and there previously was finger activity, this is a release
+ */
+ if (!td->first && !td->activity_now && td->activity) {
+ input_event(input, EV_KEY, BTN_TOUCH, 0);
+ td->activity = false;
+ }
+ return;
+ }
+
+ input_event(input, EV_ABS, ABS_MT_TRACKING_ID, td->id);
+ input_event(input, EV_ABS, ABS_MT_POSITION_X, td->x);
+ input_event(input, EV_ABS, ABS_MT_POSITION_Y, td->y);
+
+ input_mt_sync(input);
+ td->valid = false;
+
+ /* touchscreen emulation: if first active finger in this frame... */
+ if (!td->activity_now) {
+ /* if there was no previous activity, emit touch event */
+ if (!td->activity) {
+ input_event(input, EV_KEY, BTN_TOUCH, 1);
+ td->activity = true;
+ }
+ td->activity_now = true;
+ /* and in any case this is our preferred finger */
+ input_event(input, EV_ABS, ABS_X, td->x);
+ input_event(input, EV_ABS, ABS_Y, td->y);
+ }
+}
+
+
+static int mosart_event(struct hid_device *hid, struct hid_field *field,
+ struct hid_usage *usage, __s32 value)
+{
+ struct mosart_data *td = hid_get_drvdata(hid);
+
+ if (hid->claimed & HID_CLAIMED_INPUT) {
+ struct input_dev *input = field->hidinput->input;
+ switch (usage->hid) {
+ case HID_DG_INRANGE:
+ td->valid = !!value;
+ break;
+ case HID_GD_X:
+ td->x = value;
+ break;
+ case HID_GD_Y:
+ td->y = value;
+ mosart_filter_event(td, input);
+ break;
+ case HID_DG_CONTACTID:
+ td->id = value;
+ break;
+ case HID_DG_CONTACTCOUNT:
+ /* touch emulation: this is the last field in a frame */
+ td->first = false;
+ td->activity_now = false;
+ break;
+ case HID_DG_CONFIDENCE:
+ case HID_DG_TIPSWITCH:
+ /* avoid interference from generic hidinput handling */
+ break;
+
+ default:
+ /* fallback to the generic hidinput handling */
+ return 0;
+ }
+ }
+
+ /* we have handled the hidinput part, now remains hiddev */
+ if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
+ hid->hiddev_hid_event(hid, field, usage, value);
+
+ return 1;
+}
+
+static int mosart_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+ int ret;
+ struct mosart_data *td;
+
+
+ td = kmalloc(sizeof(struct mosart_data), GFP_KERNEL);
+ if (!td) {
+ dev_err(&hdev->dev, "cannot allocate MosArt data\n");
+ return -ENOMEM;
+ }
+ td->valid = false;
+ td->activity = false;
+ td->activity_now = false;
+ td->first = false;
+ hid_set_drvdata(hdev, td);
+
+ /* currently, it's better to have one evdev device only */
+#if 0
+ hdev->quirks |= HID_QUIRK_MULTI_INPUT;
+#endif
+
+ ret = hid_parse(hdev);
+ if (ret == 0)
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+
+ if (ret == 0) {
+ struct hid_report_enum *re = hdev->report_enum
+ + HID_FEATURE_REPORT;
+ struct hid_report *r = re->report_id_hash[7];
+
+ r->field[0]->value[0] = 0x02;
+ usbhid_submit_report(hdev, r, USB_DIR_OUT);
+ } else
+ kfree(td);
+
+ return ret;
+}
+
+static void mosart_remove(struct hid_device *hdev)
+{
+ hid_hw_stop(hdev);
+ kfree(hid_get_drvdata(hdev));
+ hid_set_drvdata(hdev, NULL);
+}
+
+static const struct hid_device_id mosart_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_ASUS, USB_DEVICE_ID_ASUS_T91MT) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, mosart_devices);
+
+static const struct hid_usage_id mosart_grabbed_usages[] = {
+ { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
+ { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
+};
+
+static struct hid_driver mosart_driver = {
+ .name = "mosart",
+ .id_table = mosart_devices,
+ .probe = mosart_probe,
+ .remove = mosart_remove,
+ .input_mapping = mosart_input_mapping,
+ .input_mapped = mosart_input_mapped,
+ .usage_table = mosart_grabbed_usages,
+ .event = mosart_event,
+};
+
+static int __init mosart_init(void)
+{
+ return hid_register_driver(&mosart_driver);
+}
+
+static void __exit mosart_exit(void)
+{
+ hid_unregister_driver(&mosart_driver);
+}
+
+module_init(mosart_init);
+module_exit(mosart_exit);
+
diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c
index 49ce69d7bba..3234c729a89 100644
--- a/drivers/hid/hid-ntrig.c
+++ b/drivers/hid/hid-ntrig.c
@@ -25,11 +25,16 @@
EV_KEY, (c))
struct ntrig_data {
- __s32 x, y, id, w, h;
- char reading_a_point, found_contact_id;
- char pen_active;
- char finger_active;
- char inverted;
+ /* Incoming raw values for a single contact */
+ __u16 x, y, w, h;
+ __u16 id;
+ __u8 confidence;
+
+ bool reading_mt;
+ __u8 first_contact_confidence;
+
+ __u8 mt_footer[4];
+ __u8 mt_foot_count;
};
/*
@@ -42,8 +47,11 @@ static int ntrig_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
- switch (usage->hid & HID_USAGE_PAGE) {
+ /* No special mappings needed for the pen and single touch */
+ if (field->physical)
+ return 0;
+ switch (usage->hid & HID_USAGE_PAGE) {
case HID_UP_GENDESK:
switch (usage->hid) {
case HID_GD_X:
@@ -66,18 +74,12 @@ static int ntrig_input_mapping(struct hid_device *hdev, struct hid_input *hi,
case HID_UP_DIGITIZER:
switch (usage->hid) {
/* we do not want to map these for now */
- case HID_DG_CONTACTID: /* value is useless */
+ case HID_DG_CONTACTID: /* Not trustworthy, squelch for now */
case HID_DG_INPUTMODE:
case HID_DG_DEVICEINDEX:
- case HID_DG_CONTACTCOUNT:
case HID_DG_CONTACTMAX:
return -1;
- /* original mapping by Rafi Rubin */
- case HID_DG_CONFIDENCE:
- nt_map_key_clear(BTN_TOOL_DOUBLETAP);
- return 1;
-
/* width/height mapped on TouchMajor/TouchMinor/Orientation */
case HID_DG_WIDTH:
hid_map_usage(hi, usage, bit, max,
@@ -104,6 +106,10 @@ static int ntrig_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
+ /* No special mappings needed for the pen and single touch */
+ if (field->physical)
+ return 0;
+
if (usage->type == EV_KEY || usage->type == EV_REL
|| usage->type == EV_ABS)
clear_bit(usage->code, *bit);
@@ -123,31 +129,30 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field,
struct input_dev *input = field->hidinput->input;
struct ntrig_data *nd = hid_get_drvdata(hid);
+ /* No special handling needed for the pen */
+ if (field->application == HID_DG_PEN)
+ return 0;
+
if (hid->claimed & HID_CLAIMED_INPUT) {
switch (usage->hid) {
-
- case HID_DG_INRANGE:
- if (field->application & 0x3)
- nd->pen_active = (value != 0);
- else
- nd->finger_active = (value != 0);
- return 0;
-
- case HID_DG_INVERT:
- nd->inverted = value;
- return 0;
-
+ case 0xff000001:
+ /* Tag indicating the start of a multitouch group */
+ nd->reading_mt = 1;
+ nd->first_contact_confidence = 0;
+ break;
+ case HID_DG_CONFIDENCE:
+ nd->confidence = value;
+ break;
case HID_GD_X:
nd->x = value;
- nd->reading_a_point = 1;
+ /* Clear the contact footer */
+ nd->mt_foot_count = 0;
break;
case HID_GD_Y:
nd->y = value;
break;
case HID_DG_CONTACTID:
nd->id = value;
- /* we receive this only when in multitouch mode */
- nd->found_contact_id = 1;
break;
case HID_DG_WIDTH:
nd->w = value;
@@ -159,35 +164,13 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field,
* report received in a finger event. We want
* to emit a normal (X, Y) position
*/
- if (!nd->found_contact_id) {
- if (nd->pen_active && nd->finger_active) {
- input_report_key(input, BTN_TOOL_DOUBLETAP, 0);
- input_report_key(input, BTN_TOOL_DOUBLETAP, 1);
- }
+ if (!nd->reading_mt) {
+ input_report_key(input, BTN_TOOL_DOUBLETAP,
+ (nd->confidence != 0));
input_event(input, EV_ABS, ABS_X, nd->x);
input_event(input, EV_ABS, ABS_Y, nd->y);
}
break;
- case HID_DG_TIPPRESSURE:
- /*
- * when in single touch mode, this is the last
- * report received in a pen event. We want
- * to emit a normal (X, Y) position
- */
- if (! nd->found_contact_id) {
- if (nd->pen_active && nd->finger_active) {
- input_report_key(input,
- nd->inverted ? BTN_TOOL_RUBBER : BTN_TOOL_PEN
- , 0);
- input_report_key(input,
- nd->inverted ? BTN_TOOL_RUBBER : BTN_TOOL_PEN
- , 1);
- }
- input_event(input, EV_ABS, ABS_X, nd->x);
- input_event(input, EV_ABS, ABS_Y, nd->y);
- input_event(input, EV_ABS, ABS_PRESSURE, value);
- }
- break;
case 0xff000002:
/*
* we receive this when the device is in multitouch
@@ -195,10 +178,34 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field,
* this usage tells if the contact point is real
* or a placeholder
*/
- if (!nd->reading_a_point || value != 1)
+
+ /* Shouldn't get more than 4 footer packets, so skip */
+ if (nd->mt_foot_count >= 4)
break;
+
+ nd->mt_footer[nd->mt_foot_count++] = value;
+
+ /* if the footer isn't complete break */
+ if (nd->mt_foot_count != 4)
+ break;
+
+ /* Pen activity signal, trigger end of touch. */
+ if (nd->mt_footer[2]) {
+ nd->confidence = 0;
+ break;
+ }
+
+ /* If the contact was invalid */
+ if (!(nd->confidence && nd->mt_footer[0])
+ || nd->w <= 250
+ || nd->h <= 190) {
+ nd->confidence = 0;
+ break;
+ }
+
/* emit a normal (X, Y) for the first point only */
if (nd->id == 0) {
+ nd->first_contact_confidence = nd->confidence;
input_event(input, EV_ABS, ABS_X, nd->x);
input_event(input, EV_ABS, ABS_Y, nd->y);
}
@@ -220,8 +227,39 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field,
ABS_MT_TOUCH_MINOR, nd->w);
}
input_mt_sync(field->hidinput->input);
- nd->reading_a_point = 0;
- nd->found_contact_id = 0;
+ break;
+
+ case HID_DG_CONTACTCOUNT: /* End of a multitouch group */
+ if (!nd->reading_mt)
+ break;
+
+ nd->reading_mt = 0;
+
+ if (nd->first_contact_confidence) {
+ switch (value) {
+ case 0: /* for single touch devices */
+ case 1:
+ input_report_key(input,
+ BTN_TOOL_DOUBLETAP, 1);
+ break;
+ case 2:
+ input_report_key(input,
+ BTN_TOOL_TRIPLETAP, 1);
+ break;
+ case 3:
+ default:
+ input_report_key(input,
+ BTN_TOOL_QUADTAP, 1);
+ }
+ input_report_key(input, BTN_TOUCH, 1);
+ } else {
+ input_report_key(input,
+ BTN_TOOL_DOUBLETAP, 0);
+ input_report_key(input,
+ BTN_TOOL_TRIPLETAP, 0);
+ input_report_key(input,
+ BTN_TOOL_QUADTAP, 0);
+ }
break;
default:
@@ -231,8 +269,8 @@ static int ntrig_event (struct hid_device *hid, struct hid_field *field,
}
/* we have handled the hidinput part, now remains hiddev */
- if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
- hid->hiddev_hid_event(hid, field, usage, value);
+ if ((hid->claimed & HID_CLAIMED_HIDDEV) && hid->hiddev_hid_event)
+ hid->hiddev_hid_event(hid, field, usage, value);
return 1;
}
@@ -241,23 +279,67 @@ static int ntrig_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
struct ntrig_data *nd;
+ struct hid_input *hidinput;
+ struct input_dev *input;
+
+ if (id->driver_data)
+ hdev->quirks |= HID_QUIRK_MULTI_INPUT;
nd = kmalloc(sizeof(struct ntrig_data), GFP_KERNEL);
if (!nd) {
dev_err(&hdev->dev, "cannot allocate N-Trig data\n");
return -ENOMEM;
}
- nd->reading_a_point = 0;
- nd->found_contact_id = 0;
+
+ nd->reading_mt = 0;
hid_set_drvdata(hdev, nd);
ret = hid_parse(hdev);
- if (!ret)
- ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+ if (ret) {
+ dev_err(&hdev->dev, "parse failed\n");
+ goto err_free;
+ }
+
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
+ if (ret) {
+ dev_err(&hdev->dev, "hw start failed\n");
+ goto err_free;
+ }
- if (ret)
- kfree (nd);
+ list_for_each_entry(hidinput, &hdev->inputs, list) {
+ input = hidinput->input;
+ switch (hidinput->report->field[0]->application) {
+ case HID_DG_PEN:
+ input->name = "N-Trig Pen";
+ break;
+ case HID_DG_TOUCHSCREEN:
+ __clear_bit(BTN_TOOL_PEN, input->keybit);
+ /*
+ * A little something special to enable
+ * two and three finger taps.
+ */
+ __set_bit(BTN_TOOL_DOUBLETAP, input->keybit);
+ __set_bit(BTN_TOOL_TRIPLETAP, input->keybit);
+ __set_bit(BTN_TOOL_QUADTAP, input->keybit);
+ /*
+ * The physical touchscreen (single touch)
+ * input has a value for physical, whereas
+ * the multitouch only has logical input
+ * fields.
+ */
+ input->name =
+ (hidinput->report->field[0]
+ ->physical) ?
+ "N-Trig Touchscreen" :
+ "N-Trig MultiTouch";
+ break;
+ }
+ }
+
+ return 0;
+err_free:
+ kfree(nd);
return ret;
}
@@ -276,7 +358,7 @@ MODULE_DEVICE_TABLE(hid, ntrig_devices);
static const struct hid_usage_id ntrig_grabbed_usages[] = {
{ HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
- { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
+ { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1 }
};
static struct hid_driver ntrig_driver = {
diff --git a/drivers/hid/hid-ortek.c b/drivers/hid/hid-ortek.c
new file mode 100644
index 00000000000..aa9a960f73a
--- /dev/null
+++ b/drivers/hid/hid-ortek.c
@@ -0,0 +1,56 @@
+/*
+ * HID driver for Ortek WKB-2000 (wireless keyboard + mouse trackpad).
+ * Fixes LogicalMaximum error in USB report description, see
+ * http://bugzilla.kernel.org/show_bug.cgi?id=14787
+ *
+ * Copyright (c) 2010 Johnathon Harris <jmharris@gmail.com>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+
+#include "hid-ids.h"
+
+static void ortek_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+ unsigned int rsize)
+{
+ if (rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x01) {
+ dev_info(&hdev->dev, "Fixing up Ortek WKB-2000 "
+ "report descriptor.\n");
+ rdesc[55] = 0x92;
+ }
+}
+
+static const struct hid_device_id ortek_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, ortek_devices);
+
+static struct hid_driver ortek_driver = {
+ .name = "ortek",
+ .id_table = ortek_devices,
+ .report_fixup = ortek_report_fixup
+};
+
+static int __init ortek_init(void)
+{
+ return hid_register_driver(&ortek_driver);
+}
+
+static void __exit ortek_exit(void)
+{
+ hid_unregister_driver(&ortek_driver);
+}
+
+module_init(ortek_init);
+module_exit(ortek_exit);
+MODULE_LICENSE("GPL");
diff --git a/drivers/hid/hid-quanta.c b/drivers/hid/hid-quanta.c
new file mode 100644
index 00000000000..01dd51c4986
--- /dev/null
+++ b/drivers/hid/hid-quanta.c
@@ -0,0 +1,260 @@
+/*
+ * HID driver for Quanta Optical Touch dual-touch panels
+ *
+ * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+
+MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
+MODULE_DESCRIPTION("Quanta dual-touch panel");
+MODULE_LICENSE("GPL");
+
+#include "hid-ids.h"
+
+struct quanta_data {
+ __u16 x, y;
+ __u8 id;
+ bool valid; /* valid finger data, or just placeholder? */
+ bool first; /* is this the first finger in this frame? */
+ bool activity_now; /* at least one active finger in this frame? */
+ bool activity; /* at least one active finger previously? */
+};
+
+static int quanta_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+ struct hid_field *field, struct hid_usage *usage,
+ unsigned long **bit, int *max)
+{
+ switch (usage->hid & HID_USAGE_PAGE) {
+
+ case HID_UP_GENDESK:
+ switch (usage->hid) {
+ case HID_GD_X:
+ hid_map_usage(hi, usage, bit, max,
+ EV_ABS, ABS_MT_POSITION_X);
+ /* touchscreen emulation */
+ input_set_abs_params(hi->input, ABS_X,
+ field->logical_minimum,
+ field->logical_maximum, 0, 0);
+ return 1;
+ case HID_GD_Y:
+ hid_map_usage(hi, usage, bit, max,
+ EV_ABS, ABS_MT_POSITION_Y);
+ /* touchscreen emulation */
+ input_set_abs_params(hi->input, ABS_Y,
+ field->logical_minimum,
+ field->logical_maximum, 0, 0);
+ return 1;
+ }
+ return 0;
+
+ case HID_UP_DIGITIZER:
+ switch (usage->hid) {
+ case HID_DG_CONFIDENCE:
+ case HID_DG_TIPSWITCH:
+ case HID_DG_INPUTMODE:
+ case HID_DG_DEVICEINDEX:
+ case HID_DG_CONTACTCOUNT:
+ case HID_DG_CONTACTMAX:
+ case HID_DG_TIPPRESSURE:
+ case HID_DG_WIDTH:
+ case HID_DG_HEIGHT:
+ return -1;
+ case HID_DG_INRANGE:
+ /* touchscreen emulation */
+ hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
+ return 1;
+ case HID_DG_CONTACTID:
+ hid_map_usage(hi, usage, bit, max,
+ EV_ABS, ABS_MT_TRACKING_ID);
+ return 1;
+ }
+ return 0;
+
+ case 0xff000000:
+ /* ignore vendor-specific features */
+ return -1;
+ }
+
+ return 0;
+}
+
+static int quanta_input_mapped(struct hid_device *hdev, struct hid_input *hi,
+ struct hid_field *field, struct hid_usage *usage,
+ unsigned long **bit, int *max)
+{
+ if (usage->type == EV_KEY || usage->type == EV_ABS)
+ clear_bit(usage->code, *bit);
+
+ return 0;
+}
+
+/*
+ * this function is called when a whole finger has been parsed,
+ * so that it can decide what to send to the input layer.
+ */
+static void quanta_filter_event(struct quanta_data *td, struct input_dev *input)
+{
+
+ td->first = !td->first; /* touchscreen emulation */
+
+ if (!td->valid) {
+ /*
+ * touchscreen emulation: if no finger in this frame is valid
+ * and there previously was finger activity, this is a release
+ */
+ if (!td->first && !td->activity_now && td->activity) {
+ input_event(input, EV_KEY, BTN_TOUCH, 0);
+ td->activity = false;
+ }
+ return;
+ }
+
+ input_event(input, EV_ABS, ABS_MT_TRACKING_ID, td->id);
+ input_event(input, EV_ABS, ABS_MT_POSITION_X, td->x);
+ input_event(input, EV_ABS, ABS_MT_POSITION_Y, td->y);
+
+ input_mt_sync(input);
+ td->valid = false;
+
+ /* touchscreen emulation: if first active finger in this frame... */
+ if (!td->activity_now) {
+ /* if there was no previous activity, emit touch event */
+ if (!td->activity) {
+ input_event(input, EV_KEY, BTN_TOUCH, 1);
+ td->activity = true;
+ }
+ td->activity_now = true;
+ /* and in any case this is our preferred finger */
+ input_event(input, EV_ABS, ABS_X, td->x);
+ input_event(input, EV_ABS, ABS_Y, td->y);
+ }
+}
+
+
+static int quanta_event(struct hid_device *hid, struct hid_field *field,
+ struct hid_usage *usage, __s32 value)
+{
+ struct quanta_data *td = hid_get_drvdata(hid);
+
+ if (hid->claimed & HID_CLAIMED_INPUT) {
+ struct input_dev *input = field->hidinput->input;
+
+ switch (usage->hid) {
+ case HID_DG_INRANGE:
+ td->valid = !!value;
+ break;
+ case HID_GD_X:
+ td->x = value;
+ break;
+ case HID_GD_Y:
+ td->y = value;
+ quanta_filter_event(td, input);
+ break;
+ case HID_DG_CONTACTID:
+ td->id = value;
+ break;
+ case HID_DG_CONTACTCOUNT:
+ /* touch emulation: this is the last field in a frame */
+ td->first = false;
+ td->activity_now = false;
+ break;
+ case HID_DG_CONFIDENCE:
+ case HID_DG_TIPSWITCH:
+ /* avoid interference from generic hidinput handling */
+ break;
+
+ default:
+ /* fallback to the generic hidinput handling */
+ return 0;
+ }
+ }
+
+ /* we have handled the hidinput part, now remains hiddev */
+ if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
+ hid->hiddev_hid_event(hid, field, usage, value);
+
+ return 1;
+}
+
+static int quanta_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+ int ret;
+ struct quanta_data *td;
+
+ td = kmalloc(sizeof(struct quanta_data), GFP_KERNEL);
+ if (!td) {
+ dev_err(&hdev->dev, "cannot allocate Quanta Touch data\n");
+ return -ENOMEM;
+ }
+ td->valid = false;
+ td->activity = false;
+ td->activity_now = false;
+ td->first = false;
+ hid_set_drvdata(hdev, td);
+
+ ret = hid_parse(hdev);
+ if (!ret)
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+
+ if (ret)
+ kfree(td);
+
+ return ret;
+}
+
+static void quanta_remove(struct hid_device *hdev)
+{
+ hid_hw_stop(hdev);
+ kfree(hid_get_drvdata(hdev));
+ hid_set_drvdata(hdev, NULL);
+}
+
+static const struct hid_device_id quanta_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
+ USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
+ USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, quanta_devices);
+
+static const struct hid_usage_id quanta_grabbed_usages[] = {
+ { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
+ { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
+};
+
+static struct hid_driver quanta_driver = {
+ .name = "quanta-touch",
+ .id_table = quanta_devices,
+ .probe = quanta_probe,
+ .remove = quanta_remove,
+ .input_mapping = quanta_input_mapping,
+ .input_mapped = quanta_input_mapped,
+ .usage_table = quanta_grabbed_usages,
+ .event = quanta_event,
+};
+
+static int __init quanta_init(void)
+{
+ return hid_register_driver(&quanta_driver);
+}
+
+static void __exit quanta_exit(void)
+{
+ hid_unregister_driver(&quanta_driver);
+}
+
+module_init(quanta_init);
+module_exit(quanta_exit);
+
diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c
index 4e8450228a2..9bf00d77d92 100644
--- a/drivers/hid/hid-sony.c
+++ b/drivers/hid/hid-sony.c
@@ -48,7 +48,7 @@ static void sony_report_fixup(struct hid_device *hdev, __u8 *rdesc,
* to "operational". Without this, the ps3 controller will not report any
* events.
*/
-static int sony_set_operational(struct hid_device *hdev)
+static int sony_set_operational_usb(struct hid_device *hdev)
{
struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
struct usb_device *dev = interface_to_usbdev(intf);
@@ -73,6 +73,12 @@ static int sony_set_operational(struct hid_device *hdev)
return ret;
}
+static int sony_set_operational_bt(struct hid_device *hdev)
+{
+ unsigned char buf[] = { 0x53, 0xf4, 0x42, 0x03, 0x00, 0x00 };
+ return hdev->hid_output_raw_report(hdev, buf, sizeof(buf), HID_FEATURE_REPORT);
+}
+
static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
int ret;
@@ -81,7 +87,7 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
sc = kzalloc(sizeof(*sc), GFP_KERNEL);
if (sc == NULL) {
- dev_err(&hdev->dev, "can't alloc apple descriptor\n");
+ dev_err(&hdev->dev, "can't alloc sony descriptor\n");
return -ENOMEM;
}
@@ -101,7 +107,17 @@ static int sony_probe(struct hid_device *hdev, const struct hid_device_id *id)
goto err_free;
}
- ret = sony_set_operational(hdev);
+ switch (hdev->bus) {
+ case BUS_USB:
+ ret = sony_set_operational_usb(hdev);
+ break;
+ case BUS_BLUETOOTH:
+ ret = sony_set_operational_bt(hdev);
+ break;
+ default:
+ ret = 0;
+ }
+
if (ret < 0)
goto err_stop;
@@ -121,6 +137,7 @@ static void sony_remove(struct hid_device *hdev)
static const struct hid_device_id sony_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
+ { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_PS3_CONTROLLER) },
{ HID_USB_DEVICE(USB_VENDOR_ID_SONY, USB_DEVICE_ID_SONY_VAIO_VGX_MOUSE),
.driver_data = VAIO_RDESC_CONSTANT },
{ }
diff --git a/drivers/hid/hid-stantum.c b/drivers/hid/hid-stantum.c
new file mode 100644
index 00000000000..2e592a06654
--- /dev/null
+++ b/drivers/hid/hid-stantum.c
@@ -0,0 +1,283 @@
+/*
+ * HID driver for Stantum multitouch panels
+ *
+ * Copyright (c) 2009 Stephane Chatty <chatty@enac.fr>
+ *
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+
+MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
+MODULE_DESCRIPTION("Stantum HID multitouch panels");
+MODULE_LICENSE("GPL");
+
+#include "hid-ids.h"
+
+struct stantum_data {
+ __s32 x, y, z, w, h; /* x, y, pressure, width, height */
+ __u16 id; /* touch id */
+ bool valid; /* valid finger data, or just placeholder? */
+ bool first; /* first finger in the HID packet? */
+ bool activity; /* at least one active finger so far? */
+};
+
+static int stantum_input_mapping(struct hid_device *hdev, struct hid_input *hi,
+ struct hid_field *field, struct hid_usage *usage,
+ unsigned long **bit, int *max)
+{
+ switch (usage->hid & HID_USAGE_PAGE) {
+
+ case HID_UP_GENDESK:
+ switch (usage->hid) {
+ case HID_GD_X:
+ hid_map_usage(hi, usage, bit, max,
+ EV_ABS, ABS_MT_POSITION_X);
+ /* touchscreen emulation */
+ input_set_abs_params(hi->input, ABS_X,
+ field->logical_minimum,
+ field->logical_maximum, 0, 0);
+ return 1;
+ case HID_GD_Y:
+ hid_map_usage(hi, usage, bit, max,
+ EV_ABS, ABS_MT_POSITION_Y);
+ /* touchscreen emulation */
+ input_set_abs_params(hi->input, ABS_Y,
+ field->logical_minimum,
+ field->logical_maximum, 0, 0);
+ return 1;
+ }
+ return 0;
+
+ case HID_UP_DIGITIZER:
+ switch (usage->hid) {
+ case HID_DG_INRANGE:
+ case HID_DG_CONFIDENCE:
+ case HID_DG_INPUTMODE:
+ case HID_DG_DEVICEINDEX:
+ case HID_DG_CONTACTCOUNT:
+ case HID_DG_CONTACTMAX:
+ return -1;
+
+ case HID_DG_TIPSWITCH:
+ /* touchscreen emulation */
+ hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
+ return 1;
+
+ case HID_DG_WIDTH:
+ hid_map_usage(hi, usage, bit, max,
+ EV_ABS, ABS_MT_TOUCH_MAJOR);
+ return 1;
+ case HID_DG_HEIGHT:
+ hid_map_usage(hi, usage, bit, max,
+ EV_ABS, ABS_MT_TOUCH_MINOR);
+ input_set_abs_params(hi->input, ABS_MT_ORIENTATION,
+ 1, 1, 0, 0);
+ return 1;
+ case HID_DG_TIPPRESSURE:
+ hid_map_usage(hi, usage, bit, max,
+ EV_ABS, ABS_MT_PRESSURE);
+ return 1;
+
+ case HID_DG_CONTACTID:
+ hid_map_usage(hi, usage, bit, max,
+ EV_ABS, ABS_MT_TRACKING_ID);
+ return 1;
+
+ }
+ return 0;
+
+ case 0xff000000:
+ /* no input-oriented meaning */
+ return -1;
+ }
+
+ return 0;
+}
+
+static int stantum_input_mapped(struct hid_device *hdev, struct hid_input *hi,
+ struct hid_field *field, struct hid_usage *usage,
+ unsigned long **bit, int *max)
+{
+ if (usage->type == EV_KEY || usage->type == EV_ABS)
+ clear_bit(usage->code, *bit);
+
+ return 0;
+}
+
+/*
+ * this function is called when a whole finger has been parsed,
+ * so that it can decide what to send to the input layer.
+ */
+static void stantum_filter_event(struct stantum_data *sd,
+ struct input_dev *input)
+{
+ bool wide;
+
+ if (!sd->valid) {
+ /*
+ * touchscreen emulation: if the first finger is not valid and
+ * there previously was finger activity, this is a release
+ */
+ if (sd->first && sd->activity) {
+ input_event(input, EV_KEY, BTN_TOUCH, 0);
+ sd->activity = false;
+ }
+ return;
+ }
+
+ input_event(input, EV_ABS, ABS_MT_TRACKING_ID, sd->id);
+ input_event(input, EV_ABS, ABS_MT_POSITION_X, sd->x);
+ input_event(input, EV_ABS, ABS_MT_POSITION_Y, sd->y);
+
+ wide = (sd->w > sd->h);
+ input_event(input, EV_ABS, ABS_MT_ORIENTATION, wide);
+ input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, wide ? sd->w : sd->h);
+ input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, wide ? sd->h : sd->w);
+
+ input_event(input, EV_ABS, ABS_MT_PRESSURE, sd->z);
+
+ input_mt_sync(input);
+ sd->valid = false;
+
+ /* touchscreen emulation */
+ if (sd->first) {
+ if (!sd->activity) {
+ input_event(input, EV_KEY, BTN_TOUCH, 1);
+ sd->activity = true;
+ }
+ input_event(input, EV_ABS, ABS_X, sd->x);
+ input_event(input, EV_ABS, ABS_Y, sd->y);
+ }
+ sd->first = false;
+}
+
+
+static int stantum_event(struct hid_device *hid, struct hid_field *field,
+ struct hid_usage *usage, __s32 value)
+{
+ struct stantum_data *sd = hid_get_drvdata(hid);
+
+ if (hid->claimed & HID_CLAIMED_INPUT) {
+ struct input_dev *input = field->hidinput->input;
+
+ switch (usage->hid) {
+ case HID_DG_INRANGE:
+ /* this is the last field in a finger */
+ stantum_filter_event(sd, input);
+ break;
+ case HID_DG_WIDTH:
+ sd->w = value;
+ break;
+ case HID_DG_HEIGHT:
+ sd->h = value;
+ break;
+ case HID_GD_X:
+ sd->x = value;
+ break;
+ case HID_GD_Y:
+ sd->y = value;
+ break;
+ case HID_DG_TIPPRESSURE:
+ sd->z = value;
+ break;
+ case HID_DG_CONTACTID:
+ sd->id = value;
+ break;
+ case HID_DG_CONFIDENCE:
+ sd->valid = !!value;
+ break;
+ case 0xff000002:
+ /* this comes only before the first finger */
+ sd->first = true;
+ break;
+
+ default:
+ /* ignore the others */
+ return 1;
+ }
+ }
+
+ /* we have handled the hidinput part, now remains hiddev */
+ if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
+ hid->hiddev_hid_event(hid, field, usage, value);
+
+ return 1;
+}
+
+static int stantum_probe(struct hid_device *hdev,
+ const struct hid_device_id *id)
+{
+ int ret;
+ struct stantum_data *sd;
+
+ sd = kmalloc(sizeof(struct stantum_data), GFP_KERNEL);
+ if (!sd) {
+ dev_err(&hdev->dev, "cannot allocate Stantum data\n");
+ return -ENOMEM;
+ }
+ sd->valid = false;
+ sd->first = false;
+ sd->activity = false;
+ hid_set_drvdata(hdev, sd);
+
+ ret = hid_parse(hdev);
+ if (!ret)
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+
+ if (ret)
+ kfree(sd);
+
+ return ret;
+}
+
+static void stantum_remove(struct hid_device *hdev)
+{
+ hid_hw_stop(hdev);
+ kfree(hid_get_drvdata(hdev));
+ hid_set_drvdata(hdev, NULL);
+}
+
+static const struct hid_device_id stantum_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, USB_DEVICE_ID_MTP) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, stantum_devices);
+
+static const struct hid_usage_id stantum_grabbed_usages[] = {
+ { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
+ { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
+};
+
+static struct hid_driver stantum_driver = {
+ .name = "stantum",
+ .id_table = stantum_devices,
+ .probe = stantum_probe,
+ .remove = stantum_remove,
+ .input_mapping = stantum_input_mapping,
+ .input_mapped = stantum_input_mapped,
+ .usage_table = stantum_grabbed_usages,
+ .event = stantum_event,
+};
+
+static int __init stantum_init(void)
+{
+ return hid_register_driver(&stantum_driver);
+}
+
+static void __exit stantum_exit(void)
+{
+ hid_unregister_driver(&stantum_driver);
+}
+
+module_init(stantum_init);
+module_exit(stantum_exit);
+
diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
index 12dcda52920..8d3b46f5d14 100644
--- a/drivers/hid/hid-wacom.c
+++ b/drivers/hid/hid-wacom.c
@@ -156,7 +156,9 @@ static int wacom_probe(struct hid_device *hdev,
struct hid_input *hidinput;
struct input_dev *input;
struct wacom_data *wdata;
+ char rep_data[2];
int ret;
+ int limit;
wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);
if (wdata == NULL) {
@@ -166,6 +168,7 @@ static int wacom_probe(struct hid_device *hdev,
hid_set_drvdata(hdev, wdata);
+ /* Parse the HID report now */
ret = hid_parse(hdev);
if (ret) {
dev_err(&hdev->dev, "parse failed\n");
@@ -178,6 +181,31 @@ static int wacom_probe(struct hid_device *hdev,
goto err_free;
}
+ /*
+ * Note that if the raw queries fail, it's not a hard failure and it
+ * is safe to continue
+ */
+
+ /* Set Wacom mode2 */
+ rep_data[0] = 0x03; rep_data[1] = 0x00;
+ limit = 3;
+ do {
+ ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
+ HID_FEATURE_REPORT);
+ } while (ret < 0 && limit-- > 0);
+ if (ret < 0)
+ dev_warn(&hdev->dev, "failed to poke device #1, %d\n", ret);
+
+ /* 0x06 - high reporting speed, 0x05 - low speed */
+ rep_data[0] = 0x06; rep_data[1] = 0x00;
+ limit = 3;
+ do {
+ ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
+ HID_FEATURE_REPORT);
+ } while (ret < 0 && limit-- > 0);
+ if (ret < 0)
+ dev_warn(&hdev->dev, "failed to poke device #2, %d\n", ret);
+
hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
input = hidinput->input;
diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c
index cdd136942bc..d04476700b7 100644
--- a/drivers/hid/hidraw.c
+++ b/drivers/hid/hidraw.c
@@ -134,7 +134,7 @@ static ssize_t hidraw_write(struct file *file, const char __user *buffer, size_t
goto out;
}
- ret = dev->hid_output_raw_report(dev, buf, count);
+ ret = dev->hid_output_raw_report(dev, buf, count, HID_OUTPUT_REPORT);
out:
kfree(buf);
return ret;
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index e2997a8d5e1..56d06cd8075 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -5,7 +5,7 @@
* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
* Copyright (c) 2007-2008 Oliver Neukum
- * Copyright (c) 2006-2009 Jiri Kosina
+ * Copyright (c) 2006-2010 Jiri Kosina
*/
/*
@@ -316,6 +316,7 @@ static int hid_submit_out(struct hid_device *hid)
err_hid("usb_submit_urb(out) failed");
return -1;
}
+ usbhid->last_out = jiffies;
} else {
/*
* queue work to wake up the device.
@@ -377,6 +378,7 @@ static int hid_submit_ctrl(struct hid_device *hid)
err_hid("usb_submit_urb(ctrl) failed");
return -1;
}
+ usbhid->last_ctrl = jiffies;
} else {
/*
* queue work to wake up the device.
@@ -512,9 +514,20 @@ static void __usbhid_submit_report(struct hid_device *hid, struct hid_report *re
usbhid->out[usbhid->outhead].report = report;
usbhid->outhead = head;
- if (!test_and_set_bit(HID_OUT_RUNNING, &usbhid->iofl))
+ if (!test_and_set_bit(HID_OUT_RUNNING, &usbhid->iofl)) {
if (hid_submit_out(hid))
clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
+ } else {
+ /*
+ * the queue is known to run
+ * but an earlier request may be stuck
+ * we may need to time out
+ * no race because this is called under
+ * spinlock
+ */
+ if (time_after(jiffies, usbhid->last_out + HZ * 5))
+ usb_unlink_urb(usbhid->urbout);
+ }
return;
}
@@ -535,9 +548,20 @@ static void __usbhid_submit_report(struct hid_device *hid, struct hid_report *re
usbhid->ctrl[usbhid->ctrlhead].dir = dir;
usbhid->ctrlhead = head;
- if (!test_and_set_bit(HID_CTRL_RUNNING, &usbhid->iofl))
+ if (!test_and_set_bit(HID_CTRL_RUNNING, &usbhid->iofl)) {
if (hid_submit_ctrl(hid))
clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
+ } else {
+ /*
+ * the queue is known to run
+ * but an earlier request may be stuck
+ * we may need to time out
+ * no race because this is called under
+ * spinlock
+ */
+ if (time_after(jiffies, usbhid->last_ctrl + HZ * 5))
+ usb_unlink_urb(usbhid->urbctrl);
+ }
}
void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, unsigned char dir)
@@ -774,7 +798,8 @@ static int hid_alloc_buffers(struct usb_device *dev, struct hid_device *hid)
return 0;
}
-static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t count)
+static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t count,
+ unsigned char report_type)
{
struct usbhid_device *usbhid = hid->driver_data;
struct usb_device *dev = hid_to_usb_dev(hid);
@@ -785,7 +810,7 @@ static int usbhid_output_raw_report(struct hid_device *hid, __u8 *buf, size_t co
ret = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
HID_REQ_SET_REPORT,
USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
- ((HID_OUTPUT_REPORT + 1) << 8) | *buf,
+ ((report_type + 1) << 8) | *buf,
interface->desc.bInterfaceNumber, buf + 1, count - 1,
USB_CTRL_SET_TIMEOUT);
@@ -981,9 +1006,6 @@ static int usbhid_start(struct hid_device *hid)
spin_lock_init(&usbhid->lock);
- usbhid->intf = intf;
- usbhid->ifnum = interface->desc.bInterfaceNumber;
-
usbhid->urbctrl = usb_alloc_urb(0, GFP_KERNEL);
if (!usbhid->urbctrl) {
ret = -ENOMEM;
@@ -1154,6 +1176,8 @@ static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *
hid->driver_data = usbhid;
usbhid->hid = hid;
+ usbhid->intf = intf;
+ usbhid->ifnum = interface->desc.bInterfaceNumber;
ret = hid_add_device(hid);
if (ret) {
@@ -1342,7 +1366,7 @@ static int hid_reset_resume(struct usb_interface *intf)
#endif /* CONFIG_PM */
-static struct usb_device_id hid_usb_ids [] = {
+static const struct usb_device_id hid_usb_ids[] = {
{ .match_flags = USB_DEVICE_ID_MATCH_INT_CLASS,
.bInterfaceClass = USB_INTERFACE_CLASS_HID },
{ } /* Terminating entry */
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 38773dc2821..7844280897d 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -43,8 +43,10 @@ static const struct hid_blacklist {
{ USB_VENDOR_ID_AFATECH, USB_DEVICE_ID_AFATECH_AF9016, HID_QUIRK_FULLSPEED_INTERVAL },
+ { USB_VENDOR_ID_ETURBOTOUCH, USB_DEVICE_ID_ETURBOTOUCH, HID_QUIRK_MULTI_INPUT },
{ USB_VENDOR_ID_PANTHERLORD, USB_DEVICE_ID_PANTHERLORD_TWIN_USB_JOYSTICK, HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
{ USB_VENDOR_ID_PLAYDOTCOM, USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII, HID_QUIRK_MULTI_INPUT },
+ { USB_VENDOR_ID_TOUCHPACK, USB_DEVICE_ID_TOUCHPACK_RTS, HID_QUIRK_MULTI_INPUT },
{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
@@ -57,6 +59,7 @@ static const struct hid_blacklist {
{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_3AXIS_5BUTTON_STICK, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
+ { USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_TURBOX_KEYBOARD, HID_QUIRK_NOGET },
{ USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_UCLOGIC_TABLET_PF1209, HID_QUIRK_MULTI_INPUT },
diff --git a/drivers/hid/usbhid/usbhid.h b/drivers/hid/usbhid/usbhid.h
index 08f505ca2e3..ec20400c7f2 100644
--- a/drivers/hid/usbhid/usbhid.h
+++ b/drivers/hid/usbhid/usbhid.h
@@ -80,12 +80,14 @@ struct usbhid_device {
unsigned char ctrlhead, ctrltail; /* Control fifo head & tail */
char *ctrlbuf; /* Control buffer */
dma_addr_t ctrlbuf_dma; /* Control buffer dma */
+ unsigned long last_ctrl; /* record of last output for timeouts */
struct urb *urbout; /* Output URB */
struct hid_output_fifo out[HID_CONTROL_FIFO_SIZE]; /* Output pipe fifo */
unsigned char outhead, outtail; /* Output pipe fifo head & tail */
char *outbuf; /* Output buffer */
dma_addr_t outbuf_dma; /* Output buffer dma */
+ unsigned long last_out; /* record of last output for timeouts */
spinlock_t lock; /* fifo spinlock */
unsigned long iofl; /* I/O flags (CTRL_RUNNING, OUT_RUNNING) */
diff --git a/drivers/input/input-polldev.c b/drivers/input/input-polldev.c
index aa6713b4a98..291d9393d35 100644
--- a/drivers/input/input-polldev.c
+++ b/drivers/input/input-polldev.c
@@ -100,6 +100,12 @@ static void input_close_polled_device(struct input_dev *input)
struct input_polled_dev *dev = input_get_drvdata(input);
cancel_delayed_work_sync(&dev->work);
+ /*
+ * Clean up work struct to remove references to the workqueue.
+ * It may be destroyed by the next call. This causes problems
+ * at next device open-close in case of poll_interval == 0.
+ */
+ INIT_DELAYED_WORK(&dev->work, dev->work.work.func);
input_polldev_stop_workqueue();
if (dev->close)
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index d84a36e545f..b54aee7cd9e 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -1161,9 +1161,17 @@ static int i8042_pm_restore(struct device *dev)
return 0;
}
+static int i8042_pm_thaw(struct device *dev)
+{
+ i8042_interrupt(0, NULL);
+
+ return 0;
+}
+
static const struct dev_pm_ops i8042_pm_ops = {
.suspend = i8042_pm_reset,
.resume = i8042_pm_restore,
+ .thaw = i8042_pm_thaw,
.poweroff = i8042_pm_reset,
.restore = i8042_pm_restore,
};
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 09a5e7341bd..5256123a522 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -618,8 +618,8 @@ static int idealtek_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
#ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
static int general_touch_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
{
- dev->x = ((pkt[2] & 0x0F) << 8) | pkt[1] ;
- dev->y = ((pkt[4] & 0x0F) << 8) | pkt[3] ;
+ dev->x = (pkt[2] << 8) | pkt[1];
+ dev->y = (pkt[4] << 8) | pkt[3];
dev->press = pkt[5] & 0xff;
dev->touch = pkt[0] & 0x01;
@@ -809,9 +809,9 @@ static struct usbtouch_device_info usbtouch_dev_info[] = {
#ifdef CONFIG_TOUCHSCREEN_USB_GENERAL_TOUCH
[DEVTYPE_GENERAL_TOUCH] = {
.min_xc = 0x0,
- .max_xc = 0x0500,
+ .max_xc = 0x7fff,
.min_yc = 0x0,
- .max_yc = 0x0500,
+ .max_yc = 0x7fff,
.rept_size = 7,
.read_data = general_touch_read_data,
},
diff --git a/drivers/macintosh/adb.c b/drivers/macintosh/adb.c
index 23741cec45e..d840a109f83 100644
--- a/drivers/macintosh/adb.c
+++ b/drivers/macintosh/adb.c
@@ -322,8 +322,8 @@ static int __init adb_init(void)
adb_controller = NULL;
} else {
#ifdef CONFIG_PPC
- if (machine_is_compatible("AAPL,PowerBook1998") ||
- machine_is_compatible("PowerBook1,1"))
+ if (of_machine_is_compatible("AAPL,PowerBook1998") ||
+ of_machine_is_compatible("PowerBook1,1"))
sleepy_trackpad = 1;
#endif /* CONFIG_PPC */
diff --git a/drivers/macintosh/therm_pm72.c b/drivers/macintosh/therm_pm72.c
index 454bc501df3..5738d8bf2d9 100644
--- a/drivers/macintosh/therm_pm72.c
+++ b/drivers/macintosh/therm_pm72.c
@@ -1899,7 +1899,7 @@ static int create_control_loops(void)
*/
if (rackmac)
cpu_pid_type = CPU_PID_TYPE_RACKMAC;
- else if (machine_is_compatible("PowerMac7,3")
+ else if (of_machine_is_compatible("PowerMac7,3")
&& (cpu_count > 1)
&& fcu_fans[CPUA_PUMP_RPM_INDEX].id != FCU_FAN_ABSENT_ID
&& fcu_fans[CPUB_PUMP_RPM_INDEX].id != FCU_FAN_ABSENT_ID) {
@@ -2234,10 +2234,10 @@ static int __init therm_pm72_init(void)
{
struct device_node *np;
- rackmac = machine_is_compatible("RackMac3,1");
+ rackmac = of_machine_is_compatible("RackMac3,1");
- if (!machine_is_compatible("PowerMac7,2") &&
- !machine_is_compatible("PowerMac7,3") &&
+ if (!of_machine_is_compatible("PowerMac7,2") &&
+ !of_machine_is_compatible("PowerMac7,3") &&
!rackmac)
return -ENODEV;
diff --git a/drivers/macintosh/therm_windtunnel.c b/drivers/macintosh/therm_windtunnel.c
index ba48fd76396..7fb8b4da35a 100644
--- a/drivers/macintosh/therm_windtunnel.c
+++ b/drivers/macintosh/therm_windtunnel.c
@@ -490,7 +490,7 @@ g4fan_init( void )
info = of_get_property(np, "thermal-info", NULL);
of_node_put(np);
- if( !info || !machine_is_compatible("PowerMac3,6") )
+ if( !info || !of_machine_is_compatible("PowerMac3,6") )
return -ENODEV;
if( info->id != 3 ) {
diff --git a/drivers/macintosh/via-pmu-backlight.c b/drivers/macintosh/via-pmu-backlight.c
index a348bb0791d..4f3c4479c16 100644
--- a/drivers/macintosh/via-pmu-backlight.c
+++ b/drivers/macintosh/via-pmu-backlight.c
@@ -150,13 +150,13 @@ void __init pmu_backlight_init()
/* Special case for the old PowerBook since I can't test on it */
autosave =
- machine_is_compatible("AAPL,3400/2400") ||
- machine_is_compatible("AAPL,3500");
+ of_machine_is_compatible("AAPL,3400/2400") ||
+ of_machine_is_compatible("AAPL,3500");
if (!autosave &&
!pmac_has_backlight_type("pmu") &&
- !machine_is_compatible("AAPL,PowerBook1998") &&
- !machine_is_compatible("PowerBook1,1"))
+ !of_machine_is_compatible("AAPL,PowerBook1998") &&
+ !of_machine_is_compatible("PowerBook1,1"))
return;
snprintf(name, sizeof(name), "pmubl");
diff --git a/drivers/macintosh/via-pmu.c b/drivers/macintosh/via-pmu.c
index db379c38143..42764849eb7 100644
--- a/drivers/macintosh/via-pmu.c
+++ b/drivers/macintosh/via-pmu.c
@@ -463,8 +463,8 @@ static int __init via_pmu_dev_init(void)
#endif
#ifdef CONFIG_PPC32
- if (machine_is_compatible("AAPL,3400/2400") ||
- machine_is_compatible("AAPL,3500")) {
+ if (of_machine_is_compatible("AAPL,3400/2400") ||
+ of_machine_is_compatible("AAPL,3500")) {
int mb = pmac_call_feature(PMAC_FTR_GET_MB_INFO,
NULL, PMAC_MB_INFO_MODEL, 0);
pmu_battery_count = 1;
@@ -472,8 +472,8 @@ static int __init via_pmu_dev_init(void)
pmu_batteries[0].flags |= PMU_BATT_TYPE_COMET;
else
pmu_batteries[0].flags |= PMU_BATT_TYPE_HOOPER;
- } else if (machine_is_compatible("AAPL,PowerBook1998") ||
- machine_is_compatible("PowerBook1,1")) {
+ } else if (of_machine_is_compatible("AAPL,PowerBook1998") ||
+ of_machine_is_compatible("PowerBook1,1")) {
pmu_battery_count = 2;
pmu_batteries[0].flags |= PMU_BATT_TYPE_SMART;
pmu_batteries[1].flags |= PMU_BATT_TYPE_SMART;
diff --git a/drivers/macintosh/windfarm_core.c b/drivers/macintosh/windfarm_core.c
index 075b4d99e35..437f55c5d18 100644
--- a/drivers/macintosh/windfarm_core.c
+++ b/drivers/macintosh/windfarm_core.c
@@ -468,9 +468,9 @@ static int __init windfarm_core_init(void)
DBG("wf: core loaded\n");
/* Don't register on old machines that use therm_pm72 for now */
- if (machine_is_compatible("PowerMac7,2") ||
- machine_is_compatible("PowerMac7,3") ||
- machine_is_compatible("RackMac3,1"))
+ if (of_machine_is_compatible("PowerMac7,2") ||
+ of_machine_is_compatible("PowerMac7,3") ||
+ of_machine_is_compatible("RackMac3,1"))
return -ENODEV;
platform_device_register(&wf_platform_device);
return 0;
diff --git a/drivers/macintosh/windfarm_cpufreq_clamp.c b/drivers/macintosh/windfarm_cpufreq_clamp.c
index 900aade0619..1a77a7c97d0 100644
--- a/drivers/macintosh/windfarm_cpufreq_clamp.c
+++ b/drivers/macintosh/windfarm_cpufreq_clamp.c
@@ -76,9 +76,9 @@ static int __init wf_cpufreq_clamp_init(void)
struct wf_control *clamp;
/* Don't register on old machines that use therm_pm72 for now */
- if (machine_is_compatible("PowerMac7,2") ||
- machine_is_compatible("PowerMac7,3") ||
- machine_is_compatible("RackMac3,1"))
+ if (of_machine_is_compatible("PowerMac7,2") ||
+ of_machine_is_compatible("PowerMac7,3") ||
+ of_machine_is_compatible("RackMac3,1"))
return -ENODEV;
clamp = kmalloc(sizeof(struct wf_control), GFP_KERNEL);
diff --git a/drivers/macintosh/windfarm_lm75_sensor.c b/drivers/macintosh/windfarm_lm75_sensor.c
index ed6426a1077..d8257d35afd 100644
--- a/drivers/macintosh/windfarm_lm75_sensor.c
+++ b/drivers/macintosh/windfarm_lm75_sensor.c
@@ -239,9 +239,9 @@ static struct i2c_driver wf_lm75_driver = {
static int __init wf_lm75_sensor_init(void)
{
/* Don't register on old machines that use therm_pm72 for now */
- if (machine_is_compatible("PowerMac7,2") ||
- machine_is_compatible("PowerMac7,3") ||
- machine_is_compatible("RackMac3,1"))
+ if (of_machine_is_compatible("PowerMac7,2") ||
+ of_machine_is_compatible("PowerMac7,3") ||
+ of_machine_is_compatible("RackMac3,1"))
return -ENODEV;
return i2c_add_driver(&wf_lm75_driver);
}
diff --git a/drivers/macintosh/windfarm_max6690_sensor.c b/drivers/macintosh/windfarm_max6690_sensor.c
index a67b349319e..b486eb929fd 100644
--- a/drivers/macintosh/windfarm_max6690_sensor.c
+++ b/drivers/macintosh/windfarm_max6690_sensor.c
@@ -188,9 +188,9 @@ static struct i2c_driver wf_max6690_driver = {
static int __init wf_max6690_sensor_init(void)
{
/* Don't register on old machines that use therm_pm72 for now */
- if (machine_is_compatible("PowerMac7,2") ||
- machine_is_compatible("PowerMac7,3") ||
- machine_is_compatible("RackMac3,1"))
+ if (of_machine_is_compatible("PowerMac7,2") ||
+ of_machine_is_compatible("PowerMac7,3") ||
+ of_machine_is_compatible("RackMac3,1"))
return -ENODEV;
return i2c_add_driver(&wf_max6690_driver);
}
diff --git a/drivers/macintosh/windfarm_pm112.c b/drivers/macintosh/windfarm_pm112.c
index 73d695dc9e5..e0ee80700cd 100644
--- a/drivers/macintosh/windfarm_pm112.c
+++ b/drivers/macintosh/windfarm_pm112.c
@@ -676,7 +676,7 @@ static int __init wf_pm112_init(void)
{
struct device_node *cpu;
- if (!machine_is_compatible("PowerMac11,2"))
+ if (!of_machine_is_compatible("PowerMac11,2"))
return -ENODEV;
/* Count the number of CPU cores */
diff --git a/drivers/macintosh/windfarm_pm121.c b/drivers/macintosh/windfarm_pm121.c
index 66ec4fb115b..947d4afa25c 100644
--- a/drivers/macintosh/windfarm_pm121.c
+++ b/drivers/macintosh/windfarm_pm121.c
@@ -1008,7 +1008,7 @@ static int __init pm121_init(void)
{
int rc = -ENODEV;
- if (machine_is_compatible("PowerMac12,1"))
+ if (of_machine_is_compatible("PowerMac12,1"))
rc = pm121_init_pm();
if (rc == 0) {
diff --git a/drivers/macintosh/windfarm_pm81.c b/drivers/macintosh/windfarm_pm81.c
index abbe206474f..565d5b2adc9 100644
--- a/drivers/macintosh/windfarm_pm81.c
+++ b/drivers/macintosh/windfarm_pm81.c
@@ -779,8 +779,8 @@ static int __init wf_smu_init(void)
{
int rc = -ENODEV;
- if (machine_is_compatible("PowerMac8,1") ||
- machine_is_compatible("PowerMac8,2"))
+ if (of_machine_is_compatible("PowerMac8,1") ||
+ of_machine_is_compatible("PowerMac8,2"))
rc = wf_init_pm();
if (rc == 0) {
diff --git a/drivers/macintosh/windfarm_pm91.c b/drivers/macintosh/windfarm_pm91.c
index 764c525b211..bea99168ff3 100644
--- a/drivers/macintosh/windfarm_pm91.c
+++ b/drivers/macintosh/windfarm_pm91.c
@@ -711,7 +711,7 @@ static int __init wf_smu_init(void)
{
int rc = -ENODEV;
- if (machine_is_compatible("PowerMac9,1"))
+ if (of_machine_is_compatible("PowerMac9,1"))
rc = wf_init_pm();
if (rc == 0) {
diff --git a/drivers/macintosh/windfarm_smu_sensors.c b/drivers/macintosh/windfarm_smu_sensors.c
index 9c567b93f41..3c193504bb8 100644
--- a/drivers/macintosh/windfarm_smu_sensors.c
+++ b/drivers/macintosh/windfarm_smu_sensors.c
@@ -363,9 +363,9 @@ smu_cpu_power_create(struct wf_sensor *volts, struct wf_sensor *amps)
* I yet have to figure out what's up with 8,2 and will have to
* adjust for later, unless we can 100% trust the SDB partition...
*/
- if ((machine_is_compatible("PowerMac8,1") ||
- machine_is_compatible("PowerMac8,2") ||
- machine_is_compatible("PowerMac9,1")) &&
+ if ((of_machine_is_compatible("PowerMac8,1") ||
+ of_machine_is_compatible("PowerMac8,2") ||
+ of_machine_is_compatible("PowerMac9,1")) &&
cpuvcp_version >= 2) {
pow->quadratic = 1;
DBG("windfarm: CPU Power using quadratic transform\n");
diff --git a/drivers/media/dvb/dvb-usb/Kconfig b/drivers/media/dvb/dvb-usb/Kconfig
index 1b249897c9f..465295b1d14 100644
--- a/drivers/media/dvb/dvb-usb/Kconfig
+++ b/drivers/media/dvb/dvb-usb/Kconfig
@@ -112,11 +112,13 @@ config DVB_USB_CXUSB
select DVB_MT352 if !DVB_FE_CUSTOMISE
select DVB_ZL10353 if !DVB_FE_CUSTOMISE
select DVB_DIB7000P if !DVB_FE_CUSTOMISE
- select DVB_LGS8GL5 if !DVB_FE_CUSTOMISE
select DVB_TUNER_DIB0070 if !DVB_FE_CUSTOMISE
+ select DVB_ATBM8830 if !DVB_FE_CUSTOMISE
+ select DVB_LGS8GXX if !DVB_FE_CUSTOMISE
select MEDIA_TUNER_SIMPLE if !MEDIA_TUNER_CUSTOMISE
select MEDIA_TUNER_XC2028 if !MEDIA_TUNER_CUSTOMISE
select MEDIA_TUNER_MXL5005S if !MEDIA_TUNER_CUSTOMISE
+ select MEDIA_TUNER_MAX2165 if !MEDIA_TUNER_CUSTOMISE
help
Say Y here to support the Conexant USB2.0 hybrid reference design.
Currently, only DVB and ATSC modes are supported, analog mode
diff --git a/drivers/media/dvb/frontends/l64781.c b/drivers/media/dvb/frontends/l64781.c
index 3051b64aa17..445fa106806 100644
--- a/drivers/media/dvb/frontends/l64781.c
+++ b/drivers/media/dvb/frontends/l64781.c
@@ -192,8 +192,8 @@ static int apply_frontend_param (struct dvb_frontend* fe, struct dvb_frontend_pa
spi_bias *= qam_tab[p->constellation];
spi_bias /= p->code_rate_HP + 1;
spi_bias /= (guard_tab[p->guard_interval] + 32);
- spi_bias *= 1000ULL;
- spi_bias /= 1000ULL + ppm/1000;
+ spi_bias *= 1000;
+ spi_bias /= 1000 + ppm/1000;
spi_bias *= p->code_rate_HP;
val0x04 = (p->transmission_mode << 2) | p->guard_interval;
diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c
index 3182a406bdd..ae08b077fd0 100644
--- a/drivers/media/video/bt8xx/bttv-driver.c
+++ b/drivers/media/video/bt8xx/bttv-driver.c
@@ -4461,6 +4461,7 @@ static int __devinit bttv_probe(struct pci_dev *dev,
request_modules(btv);
}
+ init_bttv_i2c_ir(btv);
bttv_input_init(btv);
/* everything is fine */
diff --git a/drivers/media/video/bt8xx/bttv-i2c.c b/drivers/media/video/bt8xx/bttv-i2c.c
index 63aa31a041e..407fa61e4cd 100644
--- a/drivers/media/video/bt8xx/bttv-i2c.c
+++ b/drivers/media/video/bt8xx/bttv-i2c.c
@@ -388,7 +388,12 @@ int __devinit init_bttv_i2c(struct bttv *btv)
if (0 == btv->i2c_rc && i2c_scan)
do_i2c_scan(btv->c.v4l2_dev.name, &btv->i2c_client);
- /* Instantiate the IR receiver device, if present */
+ return btv->i2c_rc;
+}
+
+/* Instantiate the I2C IR receiver device, if present */
+void __devinit init_bttv_i2c_ir(struct bttv *btv)
+{
if (0 == btv->i2c_rc) {
struct i2c_board_info info;
/* The external IR receiver is at i2c address 0x34 (0x35 for
@@ -408,7 +413,6 @@ int __devinit init_bttv_i2c(struct bttv *btv)
strlcpy(info.type, "ir_video", I2C_NAME_SIZE);
i2c_new_probed_device(&btv->c.i2c_adap, &info, addr_list);
}
- return btv->i2c_rc;
}
int __devexit fini_bttv_i2c(struct bttv *btv)
diff --git a/drivers/media/video/bt8xx/bttvp.h b/drivers/media/video/bt8xx/bttvp.h
index a1d0e9c9f28..6cccc2a17ee 100644
--- a/drivers/media/video/bt8xx/bttvp.h
+++ b/drivers/media/video/bt8xx/bttvp.h
@@ -279,6 +279,7 @@ extern unsigned int bttv_debug;
extern unsigned int bttv_gpio;
extern void bttv_gpio_tracking(struct bttv *btv, char *comment);
extern int init_bttv_i2c(struct bttv *btv);
+extern void init_bttv_i2c_ir(struct bttv *btv);
extern int fini_bttv_i2c(struct bttv *btv);
#define bttv_printk if (bttv_verbose) printk
diff --git a/drivers/media/video/mt9t112.c b/drivers/media/video/mt9t112.c
index fc4dd604572..7438f8d775b 100644
--- a/drivers/media/video/mt9t112.c
+++ b/drivers/media/video/mt9t112.c
@@ -514,7 +514,7 @@ static int mt9t112_init_pll(const struct i2c_client *client)
/* poll to verify out of standby. Must Poll this bit */
for (i = 0; i < 100; i++) {
mt9t112_reg_read(data, client, 0x0018);
- if (0x4000 & data)
+ if (!(0x4000 & data))
break;
mdelay(10);
diff --git a/drivers/media/video/pwc/pwc-ctrl.c b/drivers/media/video/pwc/pwc-ctrl.c
index 50b415e07ed..f7f7e04cf48 100644
--- a/drivers/media/video/pwc/pwc-ctrl.c
+++ b/drivers/media/video/pwc/pwc-ctrl.c
@@ -753,7 +753,7 @@ int pwc_set_shutter_speed(struct pwc_device *pdev, int mode, int value)
buf[0] = 0xff; /* fixed */
ret = send_control_msg(pdev,
- SET_LUM_CTL, SHUTTER_MODE_FORMATTER, &buf, sizeof(buf));
+ SET_LUM_CTL, SHUTTER_MODE_FORMATTER, &buf, 1);
if (!mode && ret >= 0) {
if (value < 0)
diff --git a/drivers/net/benet/be_cmds.c b/drivers/net/benet/be_cmds.c
index fee6eee7ae5..006cb2efcd2 100644
--- a/drivers/net/benet/be_cmds.c
+++ b/drivers/net/benet/be_cmds.c
@@ -296,6 +296,7 @@ static void be_cmd_hdr_prepare(struct be_cmd_req_hdr *req_hdr,
req_hdr->opcode = opcode;
req_hdr->subsystem = subsystem;
req_hdr->request_length = cpu_to_le32(cmd_len - sizeof(*req_hdr));
+ req_hdr->version = 0;
}
static void be_cmd_page_addrs_prepare(struct phys_addr *pages, u32 max_pages,
diff --git a/drivers/net/e1000/e1000_main.c b/drivers/net/e1000/e1000_main.c
index d29bb532ecc..765543663a4 100644
--- a/drivers/net/e1000/e1000_main.c
+++ b/drivers/net/e1000/e1000_main.c
@@ -4006,11 +4006,21 @@ check_page:
}
}
- if (!buffer_info->dma)
+ if (!buffer_info->dma) {
buffer_info->dma = pci_map_page(pdev,
buffer_info->page, 0,
buffer_info->length,
PCI_DMA_FROMDEVICE);
+ if (pci_dma_mapping_error(pdev, buffer_info->dma)) {
+ put_page(buffer_info->page);
+ dev_kfree_skb(skb);
+ buffer_info->page = NULL;
+ buffer_info->skb = NULL;
+ buffer_info->dma = 0;
+ adapter->alloc_rx_buff_failed++;
+ break; /* while !buffer_info->skb */
+ }
+ }
rx_desc = E1000_RX_DESC(*rx_ring, i);
rx_desc->buffer_addr = cpu_to_le64(buffer_info->dma);
@@ -4101,6 +4111,13 @@ map_skb:
skb->data,
buffer_info->length,
PCI_DMA_FROMDEVICE);
+ if (pci_dma_mapping_error(pdev, buffer_info->dma)) {
+ dev_kfree_skb(skb);
+ buffer_info->skb = NULL;
+ buffer_info->dma = 0;
+ adapter->alloc_rx_buff_failed++;
+ break; /* while !buffer_info->skb */
+ }
/*
* XXX if it was allocated cleanly it will never map to a
diff --git a/drivers/net/ixgbe/ixgbe_82598.c b/drivers/net/ixgbe/ixgbe_82598.c
index 3103f416531..35a06b47587 100644
--- a/drivers/net/ixgbe/ixgbe_82598.c
+++ b/drivers/net/ixgbe/ixgbe_82598.c
@@ -357,12 +357,34 @@ static s32 ixgbe_fc_enable_82598(struct ixgbe_hw *hw, s32 packetbuf_num)
u32 fctrl_reg;
u32 rmcs_reg;
u32 reg;
+ u32 link_speed = 0;
+ bool link_up;
#ifdef CONFIG_DCB
if (hw->fc.requested_mode == ixgbe_fc_pfc)
goto out;
#endif /* CONFIG_DCB */
+ /*
+ * On 82598 having Rx FC on causes resets while doing 1G
+ * so if it's on turn it off once we know link_speed. For
+ * more details see 82598 Specification update.
+ */
+ hw->mac.ops.check_link(hw, &link_speed, &link_up, false);
+ if (link_up && link_speed == IXGBE_LINK_SPEED_1GB_FULL) {
+ switch (hw->fc.requested_mode) {
+ case ixgbe_fc_full:
+ hw->fc.requested_mode = ixgbe_fc_tx_pause;
+ break;
+ case ixgbe_fc_rx_pause:
+ hw->fc.requested_mode = ixgbe_fc_none;
+ break;
+ default:
+ /* no change */
+ break;
+ }
+ }
+
/* Negotiate the fc mode to use */
ret_val = ixgbe_fc_autoneg(hw);
if (ret_val)
diff --git a/drivers/net/ixgbe/ixgbe_main.c b/drivers/net/ixgbe/ixgbe_main.c
index 7b7c8486c0b..951b73cf5ca 100644
--- a/drivers/net/ixgbe/ixgbe_main.c
+++ b/drivers/net/ixgbe/ixgbe_main.c
@@ -5763,6 +5763,10 @@ static int __devinit ixgbe_probe(struct pci_dev *pdev,
if (err)
goto err_sw_init;
+ /* Make it possible the adapter to be woken up via WOL */
+ if (adapter->hw.mac.type == ixgbe_mac_82599EB)
+ IXGBE_WRITE_REG(&adapter->hw, IXGBE_WUS, ~0);
+
/*
* If there is a fan on this device and it has failed log the
* failure.
diff --git a/drivers/net/mace.c b/drivers/net/mace.c
index d9fbad38638..43aea91e336 100644
--- a/drivers/net/mace.c
+++ b/drivers/net/mace.c
@@ -206,7 +206,7 @@ static int __devinit mace_probe(struct macio_dev *mdev, const struct of_device_i
mp->port_aaui = port_aaui;
else {
/* Apple Network Server uses the AAUI port */
- if (machine_is_compatible("AAPL,ShinerESB"))
+ if (of_machine_is_compatible("AAPL,ShinerESB"))
mp->port_aaui = 1;
else {
#ifdef CONFIG_MACE_AAUI_PORT
diff --git a/drivers/net/sfc/efx.c b/drivers/net/sfc/efx.c
index 103e8b0e2a0..46997e177ee 100644
--- a/drivers/net/sfc/efx.c
+++ b/drivers/net/sfc/efx.c
@@ -2284,6 +2284,7 @@ static int __devinit efx_pci_probe(struct pci_dev *pci_dev,
fail2:
efx_fini_struct(efx);
fail1:
+ WARN_ON(rc > 0);
EFX_LOG(efx, "initialisation failed. rc=%d\n", rc);
free_netdev(net_dev);
return rc;
diff --git a/drivers/net/sfc/falcon_boards.c b/drivers/net/sfc/falcon_boards.c
index bf0b96af533..5712fddd72f 100644
--- a/drivers/net/sfc/falcon_boards.c
+++ b/drivers/net/sfc/falcon_boards.c
@@ -29,6 +29,15 @@
#define FALCON_BOARD_SFN4111T 0x51
#define FALCON_BOARD_SFN4112F 0x52
+/* Board temperature is about 15°C above ambient when air flow is
+ * limited. */
+#define FALCON_BOARD_TEMP_BIAS 15
+
+/* SFC4000 datasheet says: 'The maximum permitted junction temperature
+ * is 125°C; the thermal design of the environment for the SFC4000
+ * should aim to keep this well below 100°C.' */
+#define FALCON_JUNC_TEMP_MAX 90
+
/*****************************************************************************
* Support for LM87 sensor chip used on several boards
*/
@@ -548,16 +557,16 @@ fail_hwmon:
static u8 sfe4002_lm87_channel = 0x03; /* use AIN not FAN inputs */
static const u8 sfe4002_lm87_regs[] = {
- LM87_IN_LIMITS(0, 0x83, 0x91), /* 2.5V: 1.8V +/- 5% */
- LM87_IN_LIMITS(1, 0x51, 0x5a), /* Vccp1: 1.2V +/- 5% */
- LM87_IN_LIMITS(2, 0xb6, 0xca), /* 3.3V: 3.3V +/- 5% */
- LM87_IN_LIMITS(3, 0xb0, 0xc9), /* 5V: 4.6-5.2V */
- LM87_IN_LIMITS(4, 0xb0, 0xe0), /* 12V: 11-14V */
- LM87_IN_LIMITS(5, 0x44, 0x4b), /* Vccp2: 1.0V +/- 5% */
- LM87_AIN_LIMITS(0, 0xa0, 0xb2), /* AIN1: 1.66V +/- 5% */
- LM87_AIN_LIMITS(1, 0x91, 0xa1), /* AIN2: 1.5V +/- 5% */
- LM87_TEMP_INT_LIMITS(10, 60), /* board */
- LM87_TEMP_EXT1_LIMITS(10, 70), /* Falcon */
+ LM87_IN_LIMITS(0, 0x7c, 0x99), /* 2.5V: 1.8V +/- 10% */
+ LM87_IN_LIMITS(1, 0x4c, 0x5e), /* Vccp1: 1.2V +/- 10% */
+ LM87_IN_LIMITS(2, 0xac, 0xd4), /* 3.3V: 3.3V +/- 10% */
+ LM87_IN_LIMITS(3, 0xac, 0xd4), /* 5V: 5.0V +/- 10% */
+ LM87_IN_LIMITS(4, 0xac, 0xe0), /* 12V: 10.8-14V */
+ LM87_IN_LIMITS(5, 0x3f, 0x4f), /* Vccp2: 1.0V +/- 10% */
+ LM87_AIN_LIMITS(0, 0x98, 0xbb), /* AIN1: 1.66V +/- 10% */
+ LM87_AIN_LIMITS(1, 0x8a, 0xa9), /* AIN2: 1.5V +/- 10% */
+ LM87_TEMP_INT_LIMITS(0, 80 + FALCON_BOARD_TEMP_BIAS),
+ LM87_TEMP_EXT1_LIMITS(0, FALCON_JUNC_TEMP_MAX),
0
};
@@ -619,14 +628,14 @@ static int sfe4002_init(struct efx_nic *efx)
static u8 sfn4112f_lm87_channel = 0x03; /* use AIN not FAN inputs */
static const u8 sfn4112f_lm87_regs[] = {
- LM87_IN_LIMITS(0, 0x83, 0x91), /* 2.5V: 1.8V +/- 5% */
- LM87_IN_LIMITS(1, 0x51, 0x5a), /* Vccp1: 1.2V +/- 5% */
- LM87_IN_LIMITS(2, 0xb6, 0xca), /* 3.3V: 3.3V +/- 5% */
- LM87_IN_LIMITS(4, 0xb0, 0xe0), /* 12V: 11-14V */
- LM87_IN_LIMITS(5, 0x44, 0x4b), /* Vccp2: 1.0V +/- 5% */
- LM87_AIN_LIMITS(1, 0x91, 0xa1), /* AIN2: 1.5V +/- 5% */
- LM87_TEMP_INT_LIMITS(10, 60), /* board */
- LM87_TEMP_EXT1_LIMITS(10, 70), /* Falcon */
+ LM87_IN_LIMITS(0, 0x7c, 0x99), /* 2.5V: 1.8V +/- 10% */
+ LM87_IN_LIMITS(1, 0x4c, 0x5e), /* Vccp1: 1.2V +/- 10% */
+ LM87_IN_LIMITS(2, 0xac, 0xd4), /* 3.3V: 3.3V +/- 10% */
+ LM87_IN_LIMITS(4, 0xac, 0xe0), /* 12V: 10.8-14V */
+ LM87_IN_LIMITS(5, 0x3f, 0x4f), /* Vccp2: 1.0V +/- 10% */
+ LM87_AIN_LIMITS(1, 0x8a, 0xa9), /* AIN2: 1.5V +/- 10% */
+ LM87_TEMP_INT_LIMITS(0, 60 + FALCON_BOARD_TEMP_BIAS),
+ LM87_TEMP_EXT1_LIMITS(0, FALCON_JUNC_TEMP_MAX),
0
};
diff --git a/drivers/net/sfc/mcdi.c b/drivers/net/sfc/mcdi.c
index 9f035b9f035..f66b3da6ddf 100644
--- a/drivers/net/sfc/mcdi.c
+++ b/drivers/net/sfc/mcdi.c
@@ -127,7 +127,7 @@ static int efx_mcdi_poll(struct efx_nic *efx)
efx_dword_t reg;
/* Check for a reboot atomically with respect to efx_mcdi_copyout() */
- rc = efx_mcdi_poll_reboot(efx);
+ rc = -efx_mcdi_poll_reboot(efx);
if (rc)
goto out;
diff --git a/drivers/net/sfc/qt202x_phy.c b/drivers/net/sfc/qt202x_phy.c
index e0d13a45101..67eec7a6e48 100644
--- a/drivers/net/sfc/qt202x_phy.c
+++ b/drivers/net/sfc/qt202x_phy.c
@@ -320,7 +320,7 @@ static int qt202x_reset_phy(struct efx_nic *efx)
falcon_board(efx)->type->init_phy(efx);
- return rc;
+ return 0;
fail:
EFX_ERR(efx, "PHY reset timed out\n");
diff --git a/drivers/net/tc35815.c b/drivers/net/tc35815.c
index 75a669d48e5..d71c1976072 100644
--- a/drivers/net/tc35815.c
+++ b/drivers/net/tc35815.c
@@ -1437,7 +1437,6 @@ static int tc35815_do_interrupt(struct net_device *dev, u32 status, int limit)
/* Transmit complete. */
lp->lstats.tx_ints++;
tc35815_txdone(dev);
- netif_wake_queue(dev);
if (ret < 0)
ret = 0;
}
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 4f27f022fbf..5f3b9eaeb04 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -584,6 +584,11 @@ static const struct usb_device_id products [] = {
USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
.driver_info = (unsigned long) &mbm_info,
}, {
+ /* Ericsson C3607w ver 2 */
+ USB_DEVICE_AND_INTERFACE_INFO(0x0bdb, 0x190b, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
+ .driver_info = (unsigned long) &mbm_info,
+}, {
/* Toshiba F3507g */
USB_DEVICE_AND_INTERFACE_INFO(0x0930, 0x130b, USB_CLASS_COMM,
USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
diff --git a/drivers/net/via-velocity.c b/drivers/net/via-velocity.c
index c93f58f5c6f..317aa34b21c 100644
--- a/drivers/net/via-velocity.c
+++ b/drivers/net/via-velocity.c
@@ -1877,13 +1877,12 @@ static void velocity_error(struct velocity_info *vptr, int status)
/**
* tx_srv - transmit interrupt service
* @vptr; Velocity
- * @status:
*
* Scan the queues looking for transmitted packets that
* we can complete and clean up. Update any statistics as
* necessary/
*/
-static int velocity_tx_srv(struct velocity_info *vptr, u32 status)
+static int velocity_tx_srv(struct velocity_info *vptr)
{
struct tx_desc *td;
int qnum;
@@ -2090,14 +2089,12 @@ static int velocity_receive_frame(struct velocity_info *vptr, int idx)
/**
* velocity_rx_srv - service RX interrupt
* @vptr: velocity
- * @status: adapter status (unused)
*
* Walk the receive ring of the velocity adapter and remove
* any received packets from the receive queue. Hand the ring
* slots back to the adapter for reuse.
*/
-static int velocity_rx_srv(struct velocity_info *vptr, int status,
- int budget_left)
+static int velocity_rx_srv(struct velocity_info *vptr, int budget_left)
{
struct net_device_stats *stats = &vptr->dev->stats;
int rd_curr = vptr->rx.curr;
@@ -2151,32 +2148,24 @@ static int velocity_poll(struct napi_struct *napi, int budget)
struct velocity_info *vptr = container_of(napi,
struct velocity_info, napi);
unsigned int rx_done;
- u32 isr_status;
-
- spin_lock(&vptr->lock);
- isr_status = mac_read_isr(vptr->mac_regs);
-
- /* Ack the interrupt */
- mac_write_isr(vptr->mac_regs, isr_status);
- if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
- velocity_error(vptr, isr_status);
+ unsigned long flags;
+ spin_lock_irqsave(&vptr->lock, flags);
/*
* Do rx and tx twice for performance (taken from the VIA
* out-of-tree driver).
*/
- rx_done = velocity_rx_srv(vptr, isr_status, budget / 2);
- velocity_tx_srv(vptr, isr_status);
- rx_done += velocity_rx_srv(vptr, isr_status, budget - rx_done);
- velocity_tx_srv(vptr, isr_status);
-
- spin_unlock(&vptr->lock);
+ rx_done = velocity_rx_srv(vptr, budget / 2);
+ velocity_tx_srv(vptr);
+ rx_done += velocity_rx_srv(vptr, budget - rx_done);
+ velocity_tx_srv(vptr);
/* If budget not fully consumed, exit the polling mode */
if (rx_done < budget) {
napi_complete(napi);
mac_enable_int(vptr->mac_regs);
}
+ spin_unlock_irqrestore(&vptr->lock, flags);
return rx_done;
}
@@ -2206,10 +2195,17 @@ static irqreturn_t velocity_intr(int irq, void *dev_instance)
return IRQ_NONE;
}
+ /* Ack the interrupt */
+ mac_write_isr(vptr->mac_regs, isr_status);
+
if (likely(napi_schedule_prep(&vptr->napi))) {
mac_disable_int(vptr->mac_regs);
__napi_schedule(&vptr->napi);
}
+
+ if (isr_status & (~(ISR_PRXI | ISR_PPRXI | ISR_PTXI | ISR_PPTXI)))
+ velocity_error(vptr, isr_status);
+
spin_unlock(&vptr->lock);
return IRQ_HANDLED;
@@ -3100,7 +3096,7 @@ static int velocity_resume(struct pci_dev *pdev)
velocity_init_registers(vptr, VELOCITY_INIT_WOL);
mac_disable_int(vptr->mac_regs);
- velocity_tx_srv(vptr, 0);
+ velocity_tx_srv(vptr);
for (i = 0; i < vptr->tx.numq; i++) {
if (vptr->tx.used[i])
@@ -3344,6 +3340,7 @@ static int velocity_set_coalesce(struct net_device *dev,
{
struct velocity_info *vptr = netdev_priv(dev);
int max_us = 0x3f * 64;
+ unsigned long flags;
/* 6 bits of */
if (ecmd->tx_coalesce_usecs > max_us)
@@ -3365,6 +3362,7 @@ static int velocity_set_coalesce(struct net_device *dev,
ecmd->tx_coalesce_usecs);
/* Setup the interrupt suppression and queue timers */
+ spin_lock_irqsave(&vptr->lock, flags);
mac_disable_int(vptr->mac_regs);
setup_adaptive_interrupts(vptr);
setup_queue_timers(vptr);
@@ -3372,6 +3370,7 @@ static int velocity_set_coalesce(struct net_device *dev,
mac_write_int_mask(vptr->int_mask, vptr->mac_regs);
mac_clear_isr(vptr->mac_regs);
mac_enable_int(vptr->mac_regs);
+ spin_unlock_irqrestore(&vptr->lock, flags);
return 0;
}
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index fa12b9060b0..29bf33692f7 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1615,7 +1615,7 @@ static int ath_tx_setup_buffer(struct ieee80211_hw *hw, struct ath_buf *bf,
bf->bf_frmlen -= padsize;
}
- if (conf_is_ht(&hw->conf) && !is_pae(skb))
+ if (conf_is_ht(&hw->conf))
bf->bf_state.bf_type |= BUF_HT;
bf->bf_flags = setup_tx_flags(sc, skb, txctl->txq);
@@ -1701,7 +1701,7 @@ static void ath_tx_start_dma(struct ath_softc *sc, struct ath_buf *bf,
goto tx_done;
}
- if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
+ if ((tx_info->flags & IEEE80211_TX_CTL_AMPDU) && !is_pae(skb)) {
/*
* Try aggregation if it's a unicast data frame
* and the destination is HT capable.
diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
index fe3bf949199..c484cc25389 100644
--- a/drivers/net/wireless/b43/b43.h
+++ b/drivers/net/wireless/b43/b43.h
@@ -115,6 +115,7 @@
#define B43_MMIO_TSF_2 0x636 /* core rev < 3 only */
#define B43_MMIO_TSF_3 0x638 /* core rev < 3 only */
#define B43_MMIO_RNG 0x65A
+#define B43_MMIO_IFSSLOT 0x684 /* Interframe slot time */
#define B43_MMIO_IFSCTL 0x688 /* Interframe space control */
#define B43_MMIO_IFSCTL_USE_EDCF 0x0004
#define B43_MMIO_POWERUP_DELAY 0x6A8
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 4c41cfe44f2..490fb45d1d0 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -628,10 +628,17 @@ static void b43_upload_card_macaddress(struct b43_wldev *dev)
static void b43_set_slot_time(struct b43_wldev *dev, u16 slot_time)
{
/* slot_time is in usec. */
- if (dev->phy.type != B43_PHYTYPE_G)
+ /* This test used to exit for all but a G PHY. */
+ if (b43_current_band(dev->wl) == IEEE80211_BAND_5GHZ)
return;
- b43_write16(dev, 0x684, 510 + slot_time);
- b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time);
+ b43_write16(dev, B43_MMIO_IFSSLOT, 510 + slot_time);
+ /* Shared memory location 0x0010 is the slot time and should be
+ * set to slot_time; however, this register is initially 0 and changing
+ * the value adversely affects the transmit rate for BCM4311
+ * devices. Until this behavior is unterstood, delete this step
+ *
+ * b43_shm_write16(dev, B43_SHM_SHARED, 0x0010, slot_time);
+ */
}
static void b43_short_slot_timing_enable(struct b43_wldev *dev)
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965.c b/drivers/net/wireless/iwlwifi/iwl-4965.c
index 9b4b8b5c757..31462813bac 100644
--- a/drivers/net/wireless/iwlwifi/iwl-4965.c
+++ b/drivers/net/wireless/iwlwifi/iwl-4965.c
@@ -2008,7 +2008,7 @@ static void iwl4965_rx_reply_tx(struct iwl_priv *priv,
IWL_DEBUG_TX_REPLY(priv, "Retry scheduler reclaim scd_ssn "
"%d index %d\n", scd_ssn , index);
freed = iwl_tx_queue_reclaim(priv, txq_id, index);
- priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+ iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
if (priv->mac80211_registered &&
(iwl_queue_space(&txq->q) > txq->q.low_mark) &&
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index de45f308b74..cffaae772d5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -1125,7 +1125,7 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv,
scd_ssn , index, txq_id, txq->swq_id);
freed = iwl_tx_queue_reclaim(priv, txq_id, index);
- priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+ iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
if (priv->mac80211_registered &&
(iwl_queue_space(&txq->q) > txq->q.low_mark) &&
@@ -1153,16 +1153,14 @@ static void iwl5000_rx_reply_tx(struct iwl_priv *priv,
tx_resp->failure_frame);
freed = iwl_tx_queue_reclaim(priv, txq_id, index);
- if (ieee80211_is_data_qos(tx_resp->frame_ctrl))
- priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+ iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
if (priv->mac80211_registered &&
(iwl_queue_space(&txq->q) > txq->q.low_mark))
iwl_wake_queue(priv, txq_id);
}
- if (ieee80211_is_data_qos(tx_resp->frame_ctrl))
- iwl_txq_check_empty(priv, sta_id, tid, txq_id);
+ iwl_txq_check_empty(priv, sta_id, tid, txq_id);
if (iwl_check_bits(status, TX_ABORT_REQUIRED_MSK))
IWL_ERR(priv, "TODO: Implement Tx ABORT REQUIRED!!!\n");
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.c b/drivers/net/wireless/iwlwifi/iwl-core.c
index 5461f105bd2..f36f804804f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.c
+++ b/drivers/net/wireless/iwlwifi/iwl-core.c
@@ -2745,6 +2745,7 @@ int iwl_mac_config(struct ieee80211_hw *hw, u32 changed)
priv->staging_rxon.flags = 0;
iwl_set_rxon_channel(priv, conf->channel);
+ iwl_set_rxon_ht(priv, ht_conf);
iwl_set_flags_for_band(priv, conf->channel->band);
spin_unlock_irqrestore(&priv->lock, flags);
diff --git a/drivers/net/wireless/iwlwifi/iwl-core.h b/drivers/net/wireless/iwlwifi/iwl-core.h
index 27ca859e745..b69e972671b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-core.h
+++ b/drivers/net/wireless/iwlwifi/iwl-core.h
@@ -446,6 +446,8 @@ void iwl_hw_txq_ctx_free(struct iwl_priv *priv);
int iwl_hw_tx_queue_init(struct iwl_priv *priv,
struct iwl_tx_queue *txq);
int iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq);
+void iwl_free_tfds_in_queue(struct iwl_priv *priv,
+ int sta_id, int tid, int freed);
int iwl_tx_queue_init(struct iwl_priv *priv, struct iwl_tx_queue *txq,
int slots_num, u32 txq_id);
void iwl_tx_queue_free(struct iwl_priv *priv, int txq_id);
diff --git a/drivers/net/wireless/iwlwifi/iwl-rx.c b/drivers/net/wireless/iwlwifi/iwl-rx.c
index 6f36b6e79f5..2dbce85404a 100644
--- a/drivers/net/wireless/iwlwifi/iwl-rx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-rx.c
@@ -928,7 +928,10 @@ static void iwl_pass_packet_to_mac80211(struct iwl_priv *priv,
if (ieee80211_is_mgmt(fc) ||
ieee80211_has_protected(fc) ||
ieee80211_has_morefrags(fc) ||
- le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG)
+ le16_to_cpu(hdr->seq_ctrl) & IEEE80211_SCTL_FRAG ||
+ (ieee80211_is_data_qos(fc) &&
+ *ieee80211_get_qos_ctl(hdr) &
+ IEEE80211_QOS_CONTROL_A_MSDU_PRESENT))
ret = skb_linearize(skb);
else
ret = __pskb_pull_tail(skb, min_t(u16, IWL_LINK_HDR_MAX, len)) ?
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index 87ce2bd292c..8f407156285 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -120,6 +120,20 @@ int iwl_txq_update_write_ptr(struct iwl_priv *priv, struct iwl_tx_queue *txq)
EXPORT_SYMBOL(iwl_txq_update_write_ptr);
+void iwl_free_tfds_in_queue(struct iwl_priv *priv,
+ int sta_id, int tid, int freed)
+{
+ if (priv->stations[sta_id].tid[tid].tfds_in_queue >= freed)
+ priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+ else {
+ IWL_ERR(priv, "free more than tfds_in_queue (%u:%d)\n",
+ priv->stations[sta_id].tid[tid].tfds_in_queue,
+ freed);
+ priv->stations[sta_id].tid[tid].tfds_in_queue = 0;
+ }
+}
+EXPORT_SYMBOL(iwl_free_tfds_in_queue);
+
/**
* iwl_tx_queue_free - Deallocate DMA queue.
* @txq: Transmit queue to deallocate.
@@ -1131,6 +1145,7 @@ int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
struct iwl_queue *q = &txq->q;
struct iwl_tx_info *tx_info;
int nfreed = 0;
+ struct ieee80211_hdr *hdr;
if ((index >= q->n_bd) || (iwl_queue_used(q, index) == 0)) {
IWL_ERR(priv, "Read index for DMA queue txq id (%d), index %d, "
@@ -1145,13 +1160,16 @@ int iwl_tx_queue_reclaim(struct iwl_priv *priv, int txq_id, int index)
tx_info = &txq->txb[txq->q.read_ptr];
iwl_tx_status(priv, tx_info->skb[0]);
+
+ hdr = (struct ieee80211_hdr *)tx_info->skb[0]->data;
+ if (hdr && ieee80211_is_data_qos(hdr->frame_control))
+ nfreed++;
tx_info->skb[0] = NULL;
if (priv->cfg->ops->lib->txq_inval_byte_cnt_tbl)
priv->cfg->ops->lib->txq_inval_byte_cnt_tbl(priv, txq);
priv->cfg->ops->lib->txq_free_tfd(priv, txq);
- nfreed++;
}
return nfreed;
}
@@ -1559,7 +1577,7 @@ void iwl_rx_reply_compressed_ba(struct iwl_priv *priv,
if (txq->q.read_ptr != (ba_resp_scd_ssn & 0xff)) {
/* calculate mac80211 ampdu sw queue to wake */
int freed = iwl_tx_queue_reclaim(priv, scd_flow, index);
- priv->stations[sta_id].tid[tid].tfds_in_queue -= freed;
+ iwl_free_tfds_in_queue(priv, sta_id, tid, freed);
if ((iwl_queue_space(&txq->q) > txq->q.low_mark) &&
priv->mac80211_registered &&
diff --git a/drivers/net/wireless/iwmc3200wifi/rx.c b/drivers/net/wireless/iwmc3200wifi/rx.c
index 6d6ed748517..f727b4a8319 100644
--- a/drivers/net/wireless/iwmc3200wifi/rx.c
+++ b/drivers/net/wireless/iwmc3200wifi/rx.c
@@ -794,7 +794,7 @@ static int iwm_mlme_update_bss_table(struct iwm_priv *iwm, u8 *buf,
}
bss->bss = kzalloc(bss_len, GFP_KERNEL);
- if (!bss) {
+ if (!bss->bss) {
kfree(bss);
IWM_ERR(iwm, "Couldn't allocate bss\n");
return -ENOMEM;
diff --git a/drivers/net/wireless/rtl818x/rtl8187_dev.c b/drivers/net/wireless/rtl818x/rtl8187_dev.c
index bc5726dd5fe..7ba3052b070 100644
--- a/drivers/net/wireless/rtl818x/rtl8187_dev.c
+++ b/drivers/net/wireless/rtl818x/rtl8187_dev.c
@@ -65,6 +65,7 @@ static struct usb_device_id rtl8187_table[] __devinitdata = {
/* Sitecom */
{USB_DEVICE(0x0df6, 0x000d), .driver_info = DEVICE_RTL8187},
{USB_DEVICE(0x0df6, 0x0028), .driver_info = DEVICE_RTL8187B},
+ {USB_DEVICE(0x0df6, 0x0029), .driver_info = DEVICE_RTL8187B},
/* Sphairon Access Systems GmbH */
{USB_DEVICE(0x114B, 0x0150), .driver_info = DEVICE_RTL8187},
/* Dick Smith Electronics */
diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index d2fa27c5c1b..7cecc8fea9b 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -1,3 +1,11 @@
+config OF_FLATTREE
+ bool
+ depends on OF
+
+config OF_DYNAMIC
+ def_bool y
+ depends on OF && PPC_OF
+
config OF_DEVICE
def_bool y
depends on OF && (SPARC || PPC_OF || MICROBLAZE)
diff --git a/drivers/of/Makefile b/drivers/of/Makefile
index bdfb5f5d4b0..f232cc98ce0 100644
--- a/drivers/of/Makefile
+++ b/drivers/of/Makefile
@@ -1,4 +1,5 @@
obj-y = base.o
+obj-$(CONFIG_OF_FLATTREE) += fdt.o
obj-$(CONFIG_OF_DEVICE) += device.o platform.o
obj-$(CONFIG_OF_GPIO) += gpio.o
obj-$(CONFIG_OF_I2C) += of_i2c.o
diff --git a/drivers/of/base.c b/drivers/of/base.c
index e6627b2320f..cb96888d142 100644
--- a/drivers/of/base.c
+++ b/drivers/of/base.c
@@ -20,8 +20,10 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/spinlock.h>
+#include <linux/proc_fs.h>
struct device_node *allnodes;
+struct device_node *of_chosen;
/* use when traversing tree through the allnext, child, sibling,
* or parent members of struct device_node.
@@ -37,7 +39,7 @@ int of_n_addr_cells(struct device_node *np)
np = np->parent;
ip = of_get_property(np, "#address-cells", NULL);
if (ip)
- return *ip;
+ return be32_to_cpup(ip);
} while (np->parent);
/* No #address-cells property for the root node */
return OF_ROOT_NODE_ADDR_CELLS_DEFAULT;
@@ -53,13 +55,88 @@ int of_n_size_cells(struct device_node *np)
np = np->parent;
ip = of_get_property(np, "#size-cells", NULL);
if (ip)
- return *ip;
+ return be32_to_cpup(ip);
} while (np->parent);
/* No #size-cells property for the root node */
return OF_ROOT_NODE_SIZE_CELLS_DEFAULT;
}
EXPORT_SYMBOL(of_n_size_cells);
+#if !defined(CONFIG_SPARC) /* SPARC doesn't do ref counting (yet) */
+/**
+ * of_node_get - Increment refcount of a node
+ * @node: Node to inc refcount, NULL is supported to
+ * simplify writing of callers
+ *
+ * Returns node.
+ */
+struct device_node *of_node_get(struct device_node *node)
+{
+ if (node)
+ kref_get(&node->kref);
+ return node;
+}
+EXPORT_SYMBOL(of_node_get);
+
+static inline struct device_node *kref_to_device_node(struct kref *kref)
+{
+ return container_of(kref, struct device_node, kref);
+}
+
+/**
+ * of_node_release - release a dynamically allocated node
+ * @kref: kref element of the node to be released
+ *
+ * In of_node_put() this function is passed to kref_put()
+ * as the destructor.
+ */
+static void of_node_release(struct kref *kref)
+{
+ struct device_node *node = kref_to_device_node(kref);
+ struct property *prop = node->properties;
+
+ /* We should never be releasing nodes that haven't been detached. */
+ if (!of_node_check_flag(node, OF_DETACHED)) {
+ pr_err("ERROR: Bad of_node_put() on %s\n", node->full_name);
+ dump_stack();
+ kref_init(&node->kref);
+ return;
+ }
+
+ if (!of_node_check_flag(node, OF_DYNAMIC))
+ return;
+
+ while (prop) {
+ struct property *next = prop->next;
+ kfree(prop->name);
+ kfree(prop->value);
+ kfree(prop);
+ prop = next;
+
+ if (!prop) {
+ prop = node->deadprops;
+ node->deadprops = NULL;
+ }
+ }
+ kfree(node->full_name);
+ kfree(node->data);
+ kfree(node);
+}
+
+/**
+ * of_node_put - Decrement refcount of a node
+ * @node: Node to dec refcount, NULL is supported to
+ * simplify writing of callers
+ *
+ */
+void of_node_put(struct device_node *node)
+{
+ if (node)
+ kref_put(&node->kref, of_node_release);
+}
+EXPORT_SYMBOL(of_node_put);
+#endif /* !CONFIG_SPARC */
+
struct property *of_find_property(const struct device_node *np,
const char *name,
int *lenp)
@@ -144,6 +221,27 @@ int of_device_is_compatible(const struct device_node *device,
EXPORT_SYMBOL(of_device_is_compatible);
/**
+ * of_machine_is_compatible - Test root of device tree for a given compatible value
+ * @compat: compatible string to look for in root node's compatible property.
+ *
+ * Returns true if the root node has the given value in its
+ * compatible property.
+ */
+int of_machine_is_compatible(const char *compat)
+{
+ struct device_node *root;
+ int rc = 0;
+
+ root = of_find_node_by_path("/");
+ if (root) {
+ rc = of_device_is_compatible(root, compat);
+ of_node_put(root);
+ }
+ return rc;
+}
+EXPORT_SYMBOL(of_machine_is_compatible);
+
+/**
* of_device_is_available - check if a device is available for use
*
* @device: Node to check for availability
@@ -519,6 +617,27 @@ int of_modalias_node(struct device_node *node, char *modalias, int len)
EXPORT_SYMBOL_GPL(of_modalias_node);
/**
+ * of_find_node_by_phandle - Find a node given a phandle
+ * @handle: phandle of the node to find
+ *
+ * Returns a node pointer with refcount incremented, use
+ * of_node_put() on it when done.
+ */
+struct device_node *of_find_node_by_phandle(phandle handle)
+{
+ struct device_node *np;
+
+ read_lock(&devtree_lock);
+ for (np = allnodes; np; np = np->allnext)
+ if (np->phandle == handle)
+ break;
+ of_node_get(np);
+ read_unlock(&devtree_lock);
+ return np;
+}
+EXPORT_SYMBOL(of_find_node_by_phandle);
+
+/**
* of_parse_phandle - Resolve a phandle property to a device_node pointer
* @np: Pointer to device node holding phandle property
* @phandle_name: Name of property holding a phandle value
@@ -578,8 +697,8 @@ int of_parse_phandles_with_args(struct device_node *np, const char *list_name,
const void **out_args)
{
int ret = -EINVAL;
- const u32 *list;
- const u32 *list_end;
+ const __be32 *list;
+ const __be32 *list_end;
int size;
int cur_index = 0;
struct device_node *node = NULL;
@@ -593,7 +712,7 @@ int of_parse_phandles_with_args(struct device_node *np, const char *list_name,
list_end = list + size / sizeof(*list);
while (list < list_end) {
- const u32 *cells;
+ const __be32 *cells;
const phandle *phandle;
phandle = list++;
@@ -617,7 +736,7 @@ int of_parse_phandles_with_args(struct device_node *np, const char *list_name,
goto err1;
}
- list += *cells;
+ list += be32_to_cpup(cells);
if (list > list_end) {
pr_debug("%s: insufficient arguments length\n",
np->full_name);
@@ -658,3 +777,190 @@ err0:
return ret;
}
EXPORT_SYMBOL(of_parse_phandles_with_args);
+
+/**
+ * prom_add_property - Add a property to a node
+ */
+int prom_add_property(struct device_node *np, struct property *prop)
+{
+ struct property **next;
+ unsigned long flags;
+
+ prop->next = NULL;
+ write_lock_irqsave(&devtree_lock, flags);
+ next = &np->properties;
+ while (*next) {
+ if (strcmp(prop->name, (*next)->name) == 0) {
+ /* duplicate ! don't insert it */
+ write_unlock_irqrestore(&devtree_lock, flags);
+ return -1;
+ }
+ next = &(*next)->next;
+ }
+ *next = prop;
+ write_unlock_irqrestore(&devtree_lock, flags);
+
+#ifdef CONFIG_PROC_DEVICETREE
+ /* try to add to proc as well if it was initialized */
+ if (np->pde)
+ proc_device_tree_add_prop(np->pde, prop);
+#endif /* CONFIG_PROC_DEVICETREE */
+
+ return 0;
+}
+
+/**
+ * prom_remove_property - Remove a property from a node.
+ *
+ * Note that we don't actually remove it, since we have given out
+ * who-knows-how-many pointers to the data using get-property.
+ * Instead we just move the property to the "dead properties"
+ * list, so it won't be found any more.
+ */
+int prom_remove_property(struct device_node *np, struct property *prop)
+{
+ struct property **next;
+ unsigned long flags;
+ int found = 0;
+
+ write_lock_irqsave(&devtree_lock, flags);
+ next = &np->properties;
+ while (*next) {
+ if (*next == prop) {
+ /* found the node */
+ *next = prop->next;
+ prop->next = np->deadprops;
+ np->deadprops = prop;
+ found = 1;
+ break;
+ }
+ next = &(*next)->next;
+ }
+ write_unlock_irqrestore(&devtree_lock, flags);
+
+ if (!found)
+ return -ENODEV;
+
+#ifdef CONFIG_PROC_DEVICETREE
+ /* try to remove the proc node as well */
+ if (np->pde)
+ proc_device_tree_remove_prop(np->pde, prop);
+#endif /* CONFIG_PROC_DEVICETREE */
+
+ return 0;
+}
+
+/*
+ * prom_update_property - Update a property in a node.
+ *
+ * Note that we don't actually remove it, since we have given out
+ * who-knows-how-many pointers to the data using get-property.
+ * Instead we just move the property to the "dead properties" list,
+ * and add the new property to the property list
+ */
+int prom_update_property(struct device_node *np,
+ struct property *newprop,
+ struct property *oldprop)
+{
+ struct property **next;
+ unsigned long flags;
+ int found = 0;
+
+ write_lock_irqsave(&devtree_lock, flags);
+ next = &np->properties;
+ while (*next) {
+ if (*next == oldprop) {
+ /* found the node */
+ newprop->next = oldprop->next;
+ *next = newprop;
+ oldprop->next = np->deadprops;
+ np->deadprops = oldprop;
+ found = 1;
+ break;
+ }
+ next = &(*next)->next;
+ }
+ write_unlock_irqrestore(&devtree_lock, flags);
+
+ if (!found)
+ return -ENODEV;
+
+#ifdef CONFIG_PROC_DEVICETREE
+ /* try to add to proc as well if it was initialized */
+ if (np->pde)
+ proc_device_tree_update_prop(np->pde, newprop, oldprop);
+#endif /* CONFIG_PROC_DEVICETREE */
+
+ return 0;
+}
+
+#if defined(CONFIG_OF_DYNAMIC)
+/*
+ * Support for dynamic device trees.
+ *
+ * On some platforms, the device tree can be manipulated at runtime.
+ * The routines in this section support adding, removing and changing
+ * device tree nodes.
+ */
+
+/**
+ * of_attach_node - Plug a device node into the tree and global list.
+ */
+void of_attach_node(struct device_node *np)
+{
+ unsigned long flags;
+
+ write_lock_irqsave(&devtree_lock, flags);
+ np->sibling = np->parent->child;
+ np->allnext = allnodes;
+ np->parent->child = np;
+ allnodes = np;
+ write_unlock_irqrestore(&devtree_lock, flags);
+}
+
+/**
+ * of_detach_node - "Unplug" a node from the device tree.
+ *
+ * The caller must hold a reference to the node. The memory associated with
+ * the node is not freed until its refcount goes to zero.
+ */
+void of_detach_node(struct device_node *np)
+{
+ struct device_node *parent;
+ unsigned long flags;
+
+ write_lock_irqsave(&devtree_lock, flags);
+
+ parent = np->parent;
+ if (!parent)
+ goto out_unlock;
+
+ if (allnodes == np)
+ allnodes = np->allnext;
+ else {
+ struct device_node *prev;
+ for (prev = allnodes;
+ prev->allnext != np;
+ prev = prev->allnext)
+ ;
+ prev->allnext = np->allnext;
+ }
+
+ if (parent->child == np)
+ parent->child = np->sibling;
+ else {
+ struct device_node *prevsib;
+ for (prevsib = np->parent->child;
+ prevsib->sibling != np;
+ prevsib = prevsib->sibling)
+ ;
+ prevsib->sibling = np->sibling;
+ }
+
+ of_node_set_flag(np, OF_DETACHED);
+
+out_unlock:
+ write_unlock_irqrestore(&devtree_lock, flags);
+}
+#endif /* defined(CONFIG_OF_DYNAMIC) */
+
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
new file mode 100644
index 00000000000..406757a9d7e
--- /dev/null
+++ b/drivers/of/fdt.c
@@ -0,0 +1,590 @@
+/*
+ * Functions for working with the Flattened Device Tree data format
+ *
+ * Copyright 2009 Benjamin Herrenschmidt, IBM Corp
+ * benh@kernel.crashing.org
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/initrd.h>
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+
+#ifdef CONFIG_PPC
+#include <asm/machdep.h>
+#endif /* CONFIG_PPC */
+
+#include <asm/page.h>
+
+int __initdata dt_root_addr_cells;
+int __initdata dt_root_size_cells;
+
+struct boot_param_header *initial_boot_params;
+
+char *find_flat_dt_string(u32 offset)
+{
+ return ((char *)initial_boot_params) +
+ be32_to_cpu(initial_boot_params->off_dt_strings) + offset;
+}
+
+/**
+ * of_scan_flat_dt - scan flattened tree blob and call callback on each.
+ * @it: callback function
+ * @data: context data pointer
+ *
+ * This function is used to scan the flattened device-tree, it is
+ * used to extract the memory information at boot before we can
+ * unflatten the tree
+ */
+int __init of_scan_flat_dt(int (*it)(unsigned long node,
+ const char *uname, int depth,
+ void *data),
+ void *data)
+{
+ unsigned long p = ((unsigned long)initial_boot_params) +
+ be32_to_cpu(initial_boot_params->off_dt_struct);
+ int rc = 0;
+ int depth = -1;
+
+ do {
+ u32 tag = be32_to_cpup((__be32 *)p);
+ char *pathp;
+
+ p += 4;
+ if (tag == OF_DT_END_NODE) {
+ depth--;
+ continue;
+ }
+ if (tag == OF_DT_NOP)
+ continue;
+ if (tag == OF_DT_END)
+ break;
+ if (tag == OF_DT_PROP) {
+ u32 sz = be32_to_cpup((__be32 *)p);
+ p += 8;
+ if (be32_to_cpu(initial_boot_params->version) < 0x10)
+ p = _ALIGN(p, sz >= 8 ? 8 : 4);
+ p += sz;
+ p = _ALIGN(p, 4);
+ continue;
+ }
+ if (tag != OF_DT_BEGIN_NODE) {
+ pr_err("Invalid tag %x in flat device tree!\n", tag);
+ return -EINVAL;
+ }
+ depth++;
+ pathp = (char *)p;
+ p = _ALIGN(p + strlen(pathp) + 1, 4);
+ if ((*pathp) == '/') {
+ char *lp, *np;
+ for (lp = NULL, np = pathp; *np; np++)
+ if ((*np) == '/')
+ lp = np+1;
+ if (lp != NULL)
+ pathp = lp;
+ }
+ rc = it(p, pathp, depth, data);
+ if (rc != 0)
+ break;
+ } while (1);
+
+ return rc;
+}
+
+/**
+ * of_get_flat_dt_root - find the root node in the flat blob
+ */
+unsigned long __init of_get_flat_dt_root(void)
+{
+ unsigned long p = ((unsigned long)initial_boot_params) +
+ be32_to_cpu(initial_boot_params->off_dt_struct);
+
+ while (be32_to_cpup((__be32 *)p) == OF_DT_NOP)
+ p += 4;
+ BUG_ON(be32_to_cpup((__be32 *)p) != OF_DT_BEGIN_NODE);
+ p += 4;
+ return _ALIGN(p + strlen((char *)p) + 1, 4);
+}
+
+/**
+ * of_get_flat_dt_prop - Given a node in the flat blob, return the property ptr
+ *
+ * This function can be used within scan_flattened_dt callback to get
+ * access to properties
+ */
+void *__init of_get_flat_dt_prop(unsigned long node, const char *name,
+ unsigned long *size)
+{
+ unsigned long p = node;
+
+ do {
+ u32 tag = be32_to_cpup((__be32 *)p);
+ u32 sz, noff;
+ const char *nstr;
+
+ p += 4;
+ if (tag == OF_DT_NOP)
+ continue;
+ if (tag != OF_DT_PROP)
+ return NULL;
+
+ sz = be32_to_cpup((__be32 *)p);
+ noff = be32_to_cpup((__be32 *)(p + 4));
+ p += 8;
+ if (be32_to_cpu(initial_boot_params->version) < 0x10)
+ p = _ALIGN(p, sz >= 8 ? 8 : 4);
+
+ nstr = find_flat_dt_string(noff);
+ if (nstr == NULL) {
+ pr_warning("Can't find property index name !\n");
+ return NULL;
+ }
+ if (strcmp(name, nstr) == 0) {
+ if (size)
+ *size = sz;
+ return (void *)p;
+ }
+ p += sz;
+ p = _ALIGN(p, 4);
+ } while (1);
+}
+
+/**
+ * of_flat_dt_is_compatible - Return true if given node has compat in compatible list
+ * @node: node to test
+ * @compat: compatible string to compare with compatible list.
+ */
+int __init of_flat_dt_is_compatible(unsigned long node, const char *compat)
+{
+ const char *cp;
+ unsigned long cplen, l;
+
+ cp = of_get_flat_dt_prop(node, "compatible", &cplen);
+ if (cp == NULL)
+ return 0;
+ while (cplen > 0) {
+ if (strncasecmp(cp, compat, strlen(compat)) == 0)
+ return 1;
+ l = strlen(cp) + 1;
+ cp += l;
+ cplen -= l;
+ }
+
+ return 0;
+}
+
+static void *__init unflatten_dt_alloc(unsigned long *mem, unsigned long size,
+ unsigned long align)
+{
+ void *res;
+
+ *mem = _ALIGN(*mem, align);
+ res = (void *)*mem;
+ *mem += size;
+
+ return res;
+}
+
+/**
+ * unflatten_dt_node - Alloc and populate a device_node from the flat tree
+ * @p: pointer to node in flat tree
+ * @dad: Parent struct device_node
+ * @allnextpp: pointer to ->allnext from last allocated device_node
+ * @fpsize: Size of the node path up at the current depth.
+ */
+unsigned long __init unflatten_dt_node(unsigned long mem,
+ unsigned long *p,
+ struct device_node *dad,
+ struct device_node ***allnextpp,
+ unsigned long fpsize)
+{
+ struct device_node *np;
+ struct property *pp, **prev_pp = NULL;
+ char *pathp;
+ u32 tag;
+ unsigned int l, allocl;
+ int has_name = 0;
+ int new_format = 0;
+
+ tag = be32_to_cpup((__be32 *)(*p));
+ if (tag != OF_DT_BEGIN_NODE) {
+ pr_err("Weird tag at start of node: %x\n", tag);
+ return mem;
+ }
+ *p += 4;
+ pathp = (char *)*p;
+ l = allocl = strlen(pathp) + 1;
+ *p = _ALIGN(*p + l, 4);
+
+ /* version 0x10 has a more compact unit name here instead of the full
+ * path. we accumulate the full path size using "fpsize", we'll rebuild
+ * it later. We detect this because the first character of the name is
+ * not '/'.
+ */
+ if ((*pathp) != '/') {
+ new_format = 1;
+ if (fpsize == 0) {
+ /* root node: special case. fpsize accounts for path
+ * plus terminating zero. root node only has '/', so
+ * fpsize should be 2, but we want to avoid the first
+ * level nodes to have two '/' so we use fpsize 1 here
+ */
+ fpsize = 1;
+ allocl = 2;
+ } else {
+ /* account for '/' and path size minus terminal 0
+ * already in 'l'
+ */
+ fpsize += l;
+ allocl = fpsize;
+ }
+ }
+
+ np = unflatten_dt_alloc(&mem, sizeof(struct device_node) + allocl,
+ __alignof__(struct device_node));
+ if (allnextpp) {
+ memset(np, 0, sizeof(*np));
+ np->full_name = ((char *)np) + sizeof(struct device_node);
+ if (new_format) {
+ char *fn = np->full_name;
+ /* rebuild full path for new format */
+ if (dad && dad->parent) {
+ strcpy(fn, dad->full_name);
+#ifdef DEBUG
+ if ((strlen(fn) + l + 1) != allocl) {
+ pr_debug("%s: p: %d, l: %d, a: %d\n",
+ pathp, (int)strlen(fn),
+ l, allocl);
+ }
+#endif
+ fn += strlen(fn);
+ }
+ *(fn++) = '/';
+ memcpy(fn, pathp, l);
+ } else
+ memcpy(np->full_name, pathp, l);
+ prev_pp = &np->properties;
+ **allnextpp = np;
+ *allnextpp = &np->allnext;
+ if (dad != NULL) {
+ np->parent = dad;
+ /* we temporarily use the next field as `last_child'*/
+ if (dad->next == NULL)
+ dad->child = np;
+ else
+ dad->next->sibling = np;
+ dad->next = np;
+ }
+ kref_init(&np->kref);
+ }
+ while (1) {
+ u32 sz, noff;
+ char *pname;
+
+ tag = be32_to_cpup((__be32 *)(*p));
+ if (tag == OF_DT_NOP) {
+ *p += 4;
+ continue;
+ }
+ if (tag != OF_DT_PROP)
+ break;
+ *p += 4;
+ sz = be32_to_cpup((__be32 *)(*p));
+ noff = be32_to_cpup((__be32 *)((*p) + 4));
+ *p += 8;
+ if (be32_to_cpu(initial_boot_params->version) < 0x10)
+ *p = _ALIGN(*p, sz >= 8 ? 8 : 4);
+
+ pname = find_flat_dt_string(noff);
+ if (pname == NULL) {
+ pr_info("Can't find property name in list !\n");
+ break;
+ }
+ if (strcmp(pname, "name") == 0)
+ has_name = 1;
+ l = strlen(pname) + 1;
+ pp = unflatten_dt_alloc(&mem, sizeof(struct property),
+ __alignof__(struct property));
+ if (allnextpp) {
+ /* We accept flattened tree phandles either in
+ * ePAPR-style "phandle" properties, or the
+ * legacy "linux,phandle" properties. If both
+ * appear and have different values, things
+ * will get weird. Don't do that. */
+ if ((strcmp(pname, "phandle") == 0) ||
+ (strcmp(pname, "linux,phandle") == 0)) {
+ if (np->phandle == 0)
+ np->phandle = *((u32 *)*p);
+ }
+ /* And we process the "ibm,phandle" property
+ * used in pSeries dynamic device tree
+ * stuff */
+ if (strcmp(pname, "ibm,phandle") == 0)
+ np->phandle = *((u32 *)*p);
+ pp->name = pname;
+ pp->length = sz;
+ pp->value = (void *)*p;
+ *prev_pp = pp;
+ prev_pp = &pp->next;
+ }
+ *p = _ALIGN((*p) + sz, 4);
+ }
+ /* with version 0x10 we may not have the name property, recreate
+ * it here from the unit name if absent
+ */
+ if (!has_name) {
+ char *p1 = pathp, *ps = pathp, *pa = NULL;
+ int sz;
+
+ while (*p1) {
+ if ((*p1) == '@')
+ pa = p1;
+ if ((*p1) == '/')
+ ps = p1 + 1;
+ p1++;
+ }
+ if (pa < ps)
+ pa = p1;
+ sz = (pa - ps) + 1;
+ pp = unflatten_dt_alloc(&mem, sizeof(struct property) + sz,
+ __alignof__(struct property));
+ if (allnextpp) {
+ pp->name = "name";
+ pp->length = sz;
+ pp->value = pp + 1;
+ *prev_pp = pp;
+ prev_pp = &pp->next;
+ memcpy(pp->value, ps, sz - 1);
+ ((char *)pp->value)[sz - 1] = 0;
+ pr_debug("fixed up name for %s -> %s\n", pathp,
+ (char *)pp->value);
+ }
+ }
+ if (allnextpp) {
+ *prev_pp = NULL;
+ np->name = of_get_property(np, "name", NULL);
+ np->type = of_get_property(np, "device_type", NULL);
+
+ if (!np->name)
+ np->name = "<NULL>";
+ if (!np->type)
+ np->type = "<NULL>";
+ }
+ while (tag == OF_DT_BEGIN_NODE) {
+ mem = unflatten_dt_node(mem, p, np, allnextpp, fpsize);
+ tag = be32_to_cpup((__be32 *)(*p));
+ }
+ if (tag != OF_DT_END_NODE) {
+ pr_err("Weird tag at end of node: %x\n", tag);
+ return mem;
+ }
+ *p += 4;
+ return mem;
+}
+
+#ifdef CONFIG_BLK_DEV_INITRD
+/**
+ * early_init_dt_check_for_initrd - Decode initrd location from flat tree
+ * @node: reference to node containing initrd location ('chosen')
+ */
+void __init early_init_dt_check_for_initrd(unsigned long node)
+{
+ unsigned long start, end, len;
+ __be32 *prop;
+
+ pr_debug("Looking for initrd properties... ");
+
+ prop = of_get_flat_dt_prop(node, "linux,initrd-start", &len);
+ if (!prop)
+ return;
+ start = of_read_ulong(prop, len/4);
+
+ prop = of_get_flat_dt_prop(node, "linux,initrd-end", &len);
+ if (!prop)
+ return;
+ end = of_read_ulong(prop, len/4);
+
+ early_init_dt_setup_initrd_arch(start, end);
+ pr_debug("initrd_start=0x%lx initrd_end=0x%lx\n", start, end);
+}
+#else
+inline void early_init_dt_check_for_initrd(unsigned long node)
+{
+}
+#endif /* CONFIG_BLK_DEV_INITRD */
+
+/**
+ * early_init_dt_scan_root - fetch the top level address and size cells
+ */
+int __init early_init_dt_scan_root(unsigned long node, const char *uname,
+ int depth, void *data)
+{
+ __be32 *prop;
+
+ if (depth != 0)
+ return 0;
+
+ dt_root_size_cells = OF_ROOT_NODE_SIZE_CELLS_DEFAULT;
+ dt_root_addr_cells = OF_ROOT_NODE_ADDR_CELLS_DEFAULT;
+
+ prop = of_get_flat_dt_prop(node, "#size-cells", NULL);
+ if (prop)
+ dt_root_size_cells = be32_to_cpup(prop);
+ pr_debug("dt_root_size_cells = %x\n", dt_root_size_cells);
+
+ prop = of_get_flat_dt_prop(node, "#address-cells", NULL);
+ if (prop)
+ dt_root_addr_cells = be32_to_cpup(prop);
+ pr_debug("dt_root_addr_cells = %x\n", dt_root_addr_cells);
+
+ /* break now */
+ return 1;
+}
+
+u64 __init dt_mem_next_cell(int s, __be32 **cellp)
+{
+ __be32 *p = *cellp;
+
+ *cellp = p + s;
+ return of_read_number(p, s);
+}
+
+/**
+ * early_init_dt_scan_memory - Look for an parse memory nodes
+ */
+int __init early_init_dt_scan_memory(unsigned long node, const char *uname,
+ int depth, void *data)
+{
+ char *type = of_get_flat_dt_prop(node, "device_type", NULL);
+ __be32 *reg, *endp;
+ unsigned long l;
+
+ /* We are scanning "memory" nodes only */
+ if (type == NULL) {
+ /*
+ * The longtrail doesn't have a device_type on the
+ * /memory node, so look for the node called /memory@0.
+ */
+ if (depth != 1 || strcmp(uname, "memory@0") != 0)
+ return 0;
+ } else if (strcmp(type, "memory") != 0)
+ return 0;
+
+ reg = of_get_flat_dt_prop(node, "linux,usable-memory", &l);
+ if (reg == NULL)
+ reg = of_get_flat_dt_prop(node, "reg", &l);
+ if (reg == NULL)
+ return 0;
+
+ endp = reg + (l / sizeof(__be32));
+
+ pr_debug("memory scan node %s, reg size %ld, data: %x %x %x %x,\n",
+ uname, l, reg[0], reg[1], reg[2], reg[3]);
+
+ while ((endp - reg) >= (dt_root_addr_cells + dt_root_size_cells)) {
+ u64 base, size;
+
+ base = dt_mem_next_cell(dt_root_addr_cells, &reg);
+ size = dt_mem_next_cell(dt_root_size_cells, &reg);
+
+ if (size == 0)
+ continue;
+ pr_debug(" - %llx , %llx\n", (unsigned long long)base,
+ (unsigned long long)size);
+
+ early_init_dt_add_memory_arch(base, size);
+ }
+
+ return 0;
+}
+
+int __init early_init_dt_scan_chosen(unsigned long node, const char *uname,
+ int depth, void *data)
+{
+ unsigned long l;
+ char *p;
+
+ pr_debug("search \"chosen\", depth: %d, uname: %s\n", depth, uname);
+
+ if (depth != 1 ||
+ (strcmp(uname, "chosen") != 0 && strcmp(uname, "chosen@0") != 0))
+ return 0;
+
+ early_init_dt_check_for_initrd(node);
+
+ /* Retreive command line */
+ p = of_get_flat_dt_prop(node, "bootargs", &l);
+ if (p != NULL && l > 0)
+ strlcpy(cmd_line, p, min((int)l, COMMAND_LINE_SIZE));
+
+#ifdef CONFIG_CMDLINE
+#ifndef CONFIG_CMDLINE_FORCE
+ if (p == NULL || l == 0 || (l == 1 && (*p) == 0))
+#endif
+ strlcpy(cmd_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
+#endif /* CONFIG_CMDLINE */
+
+ early_init_dt_scan_chosen_arch(node);
+
+ pr_debug("Command line is: %s\n", cmd_line);
+
+ /* break now */
+ return 1;
+}
+
+/**
+ * unflatten_device_tree - create tree of device_nodes from flat blob
+ *
+ * unflattens the device-tree passed by the firmware, creating the
+ * tree of struct device_node. It also fills the "name" and "type"
+ * pointers of the nodes so the normal device-tree walking functions
+ * can be used.
+ */
+void __init unflatten_device_tree(void)
+{
+ unsigned long start, mem, size;
+ struct device_node **allnextp = &allnodes;
+
+ pr_debug(" -> unflatten_device_tree()\n");
+
+ /* First pass, scan for size */
+ start = ((unsigned long)initial_boot_params) +
+ be32_to_cpu(initial_boot_params->off_dt_struct);
+ size = unflatten_dt_node(0, &start, NULL, NULL, 0);
+ size = (size | 3) + 1;
+
+ pr_debug(" size is %lx, allocating...\n", size);
+
+ /* Allocate memory for the expanded device tree */
+ mem = early_init_dt_alloc_memory_arch(size + 4,
+ __alignof__(struct device_node));
+ mem = (unsigned long) __va(mem);
+
+ ((__be32 *)mem)[size / 4] = cpu_to_be32(0xdeadbeef);
+
+ pr_debug(" unflattening %lx...\n", mem);
+
+ /* Second pass, do actual unflattening */
+ start = ((unsigned long)initial_boot_params) +
+ be32_to_cpu(initial_boot_params->off_dt_struct);
+ unflatten_dt_node(mem, &start, NULL, &allnextp, 0);
+ if (be32_to_cpup((__be32 *)start) != OF_DT_END)
+ pr_warning("Weird tag at end of tree: %08x\n", *((u32 *)start));
+ if (be32_to_cpu(((__be32 *)mem)[size / 4]) != 0xdeadbeef)
+ pr_warning("End of tree marker overwritten: %08x\n",
+ be32_to_cpu(((__be32 *)mem)[size / 4]));
+ *allnextp = NULL;
+
+ /* Get pointer to OF "/chosen" node for use everywhere */
+ of_chosen = of_find_node_by_path("/chosen");
+ if (of_chosen == NULL)
+ of_chosen = of_find_node_by_path("/chosen@0");
+
+ pr_debug(" <- unflatten_device_tree()\n");
+}
diff --git a/drivers/of/gpio.c b/drivers/of/gpio.c
index 6eea601a920..24c3606217f 100644
--- a/drivers/of/gpio.c
+++ b/drivers/of/gpio.c
@@ -36,7 +36,7 @@ int of_get_gpio_flags(struct device_node *np, int index,
struct of_gpio_chip *of_gc = NULL;
int size;
const void *gpio_spec;
- const u32 *gpio_cells;
+ const __be32 *gpio_cells;
ret = of_parse_phandles_with_args(np, "gpios", "#gpio-cells", index,
&gc, &gpio_spec);
@@ -55,7 +55,7 @@ int of_get_gpio_flags(struct device_node *np, int index,
gpio_cells = of_get_property(gc, "#gpio-cells", &size);
if (!gpio_cells || size != sizeof(*gpio_cells) ||
- *gpio_cells != of_gc->gpio_cells) {
+ be32_to_cpup(gpio_cells) != of_gc->gpio_cells) {
pr_debug("%s: wrong #gpio-cells for %s\n",
np->full_name, gc->full_name);
ret = -EINVAL;
@@ -127,7 +127,8 @@ EXPORT_SYMBOL(of_gpio_count);
int of_gpio_simple_xlate(struct of_gpio_chip *of_gc, struct device_node *np,
const void *gpio_spec, enum of_gpio_flags *flags)
{
- const u32 *gpio = gpio_spec;
+ const __be32 *gpio = gpio_spec;
+ const u32 n = be32_to_cpup(gpio);
/*
* We're discouraging gpio_cells < 2, since that way you'll have to
@@ -140,13 +141,13 @@ int of_gpio_simple_xlate(struct of_gpio_chip *of_gc, struct device_node *np,
return -EINVAL;
}
- if (*gpio > of_gc->gc.ngpio)
+ if (n > of_gc->gc.ngpio)
return -EINVAL;
if (flags)
- *flags = gpio[1];
+ *flags = be32_to_cpu(gpio[1]);
- return *gpio;
+ return n;
}
EXPORT_SYMBOL(of_gpio_simple_xlate);
diff --git a/drivers/of/of_i2c.c b/drivers/of/of_i2c.c
index fa65a2b2ae2..a3a708e590d 100644
--- a/drivers/of/of_i2c.c
+++ b/drivers/of/of_i2c.c
@@ -25,7 +25,7 @@ void of_register_i2c_devices(struct i2c_adapter *adap,
for_each_child_of_node(adap_node, node) {
struct i2c_board_info info = {};
struct dev_archdata dev_ad = {};
- const u32 *addr;
+ const __be32 *addr;
int len;
if (of_modalias_node(node, info.type, sizeof(info.type)) < 0)
@@ -40,7 +40,7 @@ void of_register_i2c_devices(struct i2c_adapter *adap,
info.irq = irq_of_parse_and_map(node, 0);
- info.addr = *addr;
+ info.addr = be32_to_cpup(addr);
dev_archdata_set_node(&dev_ad, node);
info.archdata = &dev_ad;
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c
index 4b22ba568b1..18ecae4a437 100644
--- a/drivers/of/of_mdio.c
+++ b/drivers/of/of_mdio.c
@@ -51,7 +51,7 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
/* Loop over the child nodes and register a phy_device for each one */
for_each_child_of_node(np, child) {
- const u32 *addr;
+ const __be32 *addr;
int len;
/* A PHY must have a reg property in the range [0-31] */
@@ -68,7 +68,7 @@ int of_mdiobus_register(struct mii_bus *mdio, struct device_node *np)
mdio->irq[*addr] = PHY_POLL;
}
- phy = get_phy_device(mdio, *addr);
+ phy = get_phy_device(mdio, be32_to_cpup(addr));
if (!phy) {
dev_err(&mdio->dev, "error probing PHY at address %i\n",
*addr);
@@ -160,7 +160,7 @@ struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
struct device_node *net_np;
char bus_id[MII_BUS_ID_SIZE + 3];
struct phy_device *phy;
- const u32 *phy_id;
+ const __be32 *phy_id;
int sz;
if (!dev->dev.parent)
@@ -174,7 +174,7 @@ struct phy_device *of_phy_connect_fixed_link(struct net_device *dev,
if (!phy_id || sz < sizeof(*phy_id))
return NULL;
- sprintf(bus_id, PHY_ID_FMT, "0", phy_id[0]);
+ sprintf(bus_id, PHY_ID_FMT, "0", be32_to_cpu(phy_id[0]));
phy = phy_connect(dev, bus_id, hndlr, 0, iface);
return IS_ERR(phy) ? NULL : phy;
diff --git a/drivers/of/of_spi.c b/drivers/of/of_spi.c
index bed0ed6dcdc..f65f48b9844 100644
--- a/drivers/of/of_spi.c
+++ b/drivers/of/of_spi.c
@@ -23,7 +23,7 @@ void of_register_spi_devices(struct spi_master *master, struct device_node *np)
{
struct spi_device *spi;
struct device_node *nc;
- const u32 *prop;
+ const __be32 *prop;
int rc;
int len;
@@ -54,7 +54,7 @@ void of_register_spi_devices(struct spi_master *master, struct device_node *np)
spi_dev_put(spi);
continue;
}
- spi->chip_select = *prop;
+ spi->chip_select = be32_to_cpup(prop);
/* Mode (clock phase/polarity/etc.) */
if (of_find_property(nc, "spi-cpha", NULL))
@@ -72,7 +72,7 @@ void of_register_spi_devices(struct spi_master *master, struct device_node *np)
spi_dev_put(spi);
continue;
}
- spi->max_speed_hz = *prop;
+ spi->max_speed_hz = be32_to_cpup(prop);
/* IRQ */
spi->irq = irq_of_parse_and_map(nc, 0);
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 8e952fdab76..cb2fd01edda 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -720,12 +720,6 @@ static int acpiphp_bus_add(struct acpiphp_func *func)
-ret_val);
goto acpiphp_bus_add_out;
}
- /*
- * try to start anyway. We could have failed to add
- * simply because this bus had previously been added
- * on another add. Don't bother with the return value
- * we just keep going.
- */
ret_val = acpi_bus_start(device);
acpiphp_bus_add_out:
diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c
index 07d14dfdf0b..226b3e93498 100644
--- a/drivers/platform/x86/acer-wmi.c
+++ b/drivers/platform/x86/acer-wmi.c
@@ -934,7 +934,7 @@ static int __devinit acer_backlight_init(struct device *dev)
acer_backlight_device = bd;
bd->props.power = FB_BLANK_UNBLANK;
- bd->props.brightness = max_brightness;
+ bd->props.brightness = read_brightness(bd);
bd->props.max_brightness = max_brightness;
backlight_update_status(bd);
return 0;
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index e67e4feb35c..eb603f1d55c 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -5771,7 +5771,7 @@ static void thermal_exit(void)
case TPACPI_THERMAL_ACPI_TMP07:
case TPACPI_THERMAL_ACPI_UPDT:
sysfs_remove_group(&tpacpi_sensors_pdev->dev.kobj,
- &thermal_temp_input16_group);
+ &thermal_temp_input8_group);
break;
case TPACPI_THERMAL_NONE:
default:
diff --git a/drivers/sbus/char/openprom.c b/drivers/sbus/char/openprom.c
index 75ac19b1192..fc2f676e984 100644
--- a/drivers/sbus/char/openprom.c
+++ b/drivers/sbus/char/openprom.c
@@ -233,7 +233,7 @@ static int opromnext(void __user *argp, unsigned int cmd, struct device_node *dp
ph = 0;
if (dp)
- ph = dp->node;
+ ph = dp->phandle;
data->current_node = dp;
*((int *) op->oprom_array) = ph;
@@ -256,7 +256,7 @@ static int oprompci2node(void __user *argp, struct device_node *dp, struct openp
dp = pci_device_to_OF_node(pdev);
data->current_node = dp;
- *((int *)op->oprom_array) = dp->node;
+ *((int *)op->oprom_array) = dp->phandle;
op->oprom_size = sizeof(int);
err = copyout(argp, op, bufsize + sizeof(int));
@@ -273,7 +273,7 @@ static int oprompath2node(void __user *argp, struct device_node *dp, struct open
dp = of_find_node_by_path(op->oprom_array);
if (dp)
- ph = dp->node;
+ ph = dp->phandle;
data->current_node = dp;
*((int *)op->oprom_array) = ph;
op->oprom_size = sizeof(int);
@@ -540,7 +540,7 @@ static int opiocgetnext(unsigned int cmd, void __user *argp)
}
}
if (dp)
- nd = dp->node;
+ nd = dp->phandle;
if (copy_to_user(argp, &nd, sizeof(phandle)))
return -EFAULT;
@@ -570,7 +570,7 @@ static int openprom_bsd_ioctl(struct inode * inode, struct file * file,
case OPIOCGETOPTNODE:
BUILD_BUG_ON(sizeof(phandle) != sizeof(int));
- if (copy_to_user(argp, &options_node->node, sizeof(phandle)))
+ if (copy_to_user(argp, &options_node->phandle, sizeof(phandle)))
return -EFAULT;
return 0;
diff --git a/drivers/scsi/arm/fas216.c b/drivers/scsi/arm/fas216.c
index 47754260228..9e71ac61114 100644
--- a/drivers/scsi/arm/fas216.c
+++ b/drivers/scsi/arm/fas216.c
@@ -2516,7 +2516,7 @@ int fas216_eh_device_reset(struct scsi_cmnd *SCpnt)
if (info->scsi.phase == PHASE_IDLE)
fas216_kick(info);
- mod_timer(&info->eh_timer, 30 * HZ);
+ mod_timer(&info->eh_timer, jiffies + 30 * HZ);
spin_unlock_irqrestore(&info->host_lock, flags);
/*
diff --git a/drivers/scsi/fcoe/fcoe.c b/drivers/scsi/fcoe/fcoe.c
index 10be9f36a4c..2f47ae7cce9 100644
--- a/drivers/scsi/fcoe/fcoe.c
+++ b/drivers/scsi/fcoe/fcoe.c
@@ -2009,6 +2009,8 @@ static int fcoe_destroy(const char *buffer, struct kernel_param *kp)
fcoe_interface_cleanup(fcoe);
rtnl_unlock();
fcoe_if_destroy(fcoe->ctlr.lp);
+ module_put(THIS_MODULE);
+
out_putdev:
dev_put(netdev);
out_nodev:
@@ -2059,6 +2061,11 @@ static int fcoe_create(const char *buffer, struct kernel_param *kp)
}
#endif
+ if (!try_module_get(THIS_MODULE)) {
+ rc = -EINVAL;
+ goto out_nomod;
+ }
+
rtnl_lock();
netdev = fcoe_if_to_netdev(buffer);
if (!netdev) {
@@ -2099,17 +2106,24 @@ static int fcoe_create(const char *buffer, struct kernel_param *kp)
if (!fcoe_link_ok(lport))
fcoe_ctlr_link_up(&fcoe->ctlr);
- rc = 0;
-out_free:
/*
* Release from init in fcoe_interface_create(), on success lport
* should be holding a reference taken in fcoe_if_create().
*/
fcoe_interface_put(fcoe);
+ dev_put(netdev);
+ rtnl_unlock();
+ mutex_unlock(&fcoe_config_mutex);
+
+ return 0;
+out_free:
+ fcoe_interface_put(fcoe);
out_putdev:
dev_put(netdev);
out_nodev:
rtnl_unlock();
+ module_put(THIS_MODULE);
+out_nomod:
mutex_unlock(&fcoe_config_mutex);
return rc;
}
diff --git a/drivers/scsi/fcoe/libfcoe.c b/drivers/scsi/fcoe/libfcoe.c
index 9823291395a..511cb6b371e 100644
--- a/drivers/scsi/fcoe/libfcoe.c
+++ b/drivers/scsi/fcoe/libfcoe.c
@@ -1187,7 +1187,7 @@ static void fcoe_ctlr_timeout(unsigned long arg)
next_timer = fip->ctlr_ka_time;
if (time_after_eq(jiffies, fip->port_ka_time)) {
- fip->port_ka_time += jiffies +
+ fip->port_ka_time = jiffies +
msecs_to_jiffies(FIP_VN_KA_PERIOD);
fip->send_port_ka = 1;
}
diff --git a/drivers/scsi/libfc/fc_exch.c b/drivers/scsi/libfc/fc_exch.c
index 19d711cb938..7f4364770e4 100644
--- a/drivers/scsi/libfc/fc_exch.c
+++ b/drivers/scsi/libfc/fc_exch.c
@@ -1890,7 +1890,7 @@ static struct fc_seq *fc_exch_seq_send(struct fc_lport *lport,
fc_exch_setup_hdr(ep, fp, ep->f_ctl);
sp->cnt++;
- if (ep->xid <= lport->lro_xid)
+ if (ep->xid <= lport->lro_xid && fh->fh_r_ctl == FC_RCTL_DD_UNSOL_CMD)
fc_fcp_ddp_setup(fr_fsp(fp), ep->xid);
if (unlikely(lport->tt.frame_send(lport, fp)))
diff --git a/drivers/scsi/libfc/fc_fcp.c b/drivers/scsi/libfc/fc_fcp.c
index 881d5dfe8c7..6fde2fabfd9 100644
--- a/drivers/scsi/libfc/fc_fcp.c
+++ b/drivers/scsi/libfc/fc_fcp.c
@@ -298,9 +298,6 @@ void fc_fcp_ddp_setup(struct fc_fcp_pkt *fsp, u16 xid)
{
struct fc_lport *lport;
- if (!fsp)
- return;
-
lport = fsp->lp;
if ((fsp->req_flags & FC_SRB_READ) &&
(lport->lro_enabled) && (lport->tt.ddp_setup)) {
diff --git a/drivers/scsi/libfc/fc_lport.c b/drivers/scsi/libfc/fc_lport.c
index 0b165024a21..7ec8ce75007 100644
--- a/drivers/scsi/libfc/fc_lport.c
+++ b/drivers/scsi/libfc/fc_lport.c
@@ -1800,7 +1800,8 @@ int fc_lport_bsg_request(struct fc_bsg_job *job)
u32 did;
job->reply->reply_payload_rcv_len = 0;
- rsp->resid_len = job->reply_payload.payload_len;
+ if (rsp)
+ rsp->resid_len = job->reply_payload.payload_len;
mutex_lock(&lport->lp_mutex);
diff --git a/drivers/scsi/libfc/fc_rport.c b/drivers/scsi/libfc/fc_rport.c
index 02300523b23..97923bb0776 100644
--- a/drivers/scsi/libfc/fc_rport.c
+++ b/drivers/scsi/libfc/fc_rport.c
@@ -623,7 +623,7 @@ static void fc_rport_plogi_resp(struct fc_seq *sp, struct fc_frame *fp,
tov = ntohl(plp->fl_csp.sp_e_d_tov);
if (ntohs(plp->fl_csp.sp_features) & FC_SP_FT_EDTR)
- tov /= 1000;
+ tov /= 1000000;
if (tov > rdata->e_d_tov)
rdata->e_d_tov = tov;
csp_seq = ntohs(plp->fl_csp.sp_tot_seq);
diff --git a/drivers/scsi/libiscsi_tcp.c b/drivers/scsi/libiscsi_tcp.c
index db6856c138f..4ad87fd74dd 100644
--- a/drivers/scsi/libiscsi_tcp.c
+++ b/drivers/scsi/libiscsi_tcp.c
@@ -992,12 +992,10 @@ static struct iscsi_r2t_info *iscsi_tcp_get_curr_r2t(struct iscsi_task *task)
if (r2t == NULL) {
if (kfifo_out(&tcp_task->r2tqueue,
(void *)&tcp_task->r2t, sizeof(void *)) !=
- sizeof(void *)) {
- WARN_ONCE(1, "unexpected fifo state");
+ sizeof(void *))
r2t = NULL;
- }
-
- r2t = tcp_task->r2t;
+ else
+ r2t = tcp_task->r2t;
}
spin_unlock_bh(&session->lock);
}
diff --git a/drivers/scsi/megaraid/megaraid_sas.c b/drivers/scsi/megaraid/megaraid_sas.c
index 708ea3157b6..d9b8ca5116b 100644
--- a/drivers/scsi/megaraid/megaraid_sas.c
+++ b/drivers/scsi/megaraid/megaraid_sas.c
@@ -3781,6 +3781,7 @@ static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg)
compat_alloc_user_space(sizeof(struct megasas_iocpacket));
int i;
int error = 0;
+ compat_uptr_t ptr;
if (clear_user(ioc, sizeof(*ioc)))
return -EFAULT;
@@ -3793,9 +3794,22 @@ static int megasas_mgmt_compat_ioctl_fw(struct file *file, unsigned long arg)
copy_in_user(&ioc->sge_count, &cioc->sge_count, sizeof(u32)))
return -EFAULT;
- for (i = 0; i < MAX_IOCTL_SGE; i++) {
- compat_uptr_t ptr;
+ /*
+ * The sense_ptr is used in megasas_mgmt_fw_ioctl only when
+ * sense_len is not null, so prepare the 64bit value under
+ * the same condition.
+ */
+ if (ioc->sense_len) {
+ void __user **sense_ioc_ptr =
+ (void __user **)(ioc->frame.raw + ioc->sense_off);
+ compat_uptr_t *sense_cioc_ptr =
+ (compat_uptr_t *)(cioc->frame.raw + cioc->sense_off);
+ if (get_user(ptr, sense_cioc_ptr) ||
+ put_user(compat_ptr(ptr), sense_ioc_ptr))
+ return -EFAULT;
+ }
+ for (i = 0; i < MAX_IOCTL_SGE; i++) {
if (get_user(ptr, &cioc->sgl[i].iov_base) ||
put_user(compat_ptr(ptr), &ioc->sgl[i].iov_base) ||
copy_in_user(&ioc->sgl[i].iov_len,
diff --git a/drivers/serial/8250.c b/drivers/serial/8250.c
index c3e37c8e7e2..e9b15c3746f 100644
--- a/drivers/serial/8250.c
+++ b/drivers/serial/8250.c
@@ -83,6 +83,9 @@ static unsigned int skip_txen_test; /* force skip of txen test at init time */
#define PASS_LIMIT 256
+#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
+
+
/*
* We default to IRQ0 for the "no irq" hack. Some
* machine types want others as well - they're free
@@ -1792,7 +1795,7 @@ static unsigned int serial8250_tx_empty(struct uart_port *port)
up->lsr_saved_flags |= lsr & LSR_SAVE_FLAGS;
spin_unlock_irqrestore(&up->port.lock, flags);
- return lsr & UART_LSR_TEMT ? TIOCSER_TEMT : 0;
+ return (lsr & BOTH_EMPTY) == BOTH_EMPTY ? TIOCSER_TEMT : 0;
}
static unsigned int serial8250_get_mctrl(struct uart_port *port)
@@ -1850,8 +1853,6 @@ static void serial8250_break_ctl(struct uart_port *port, int break_state)
spin_unlock_irqrestore(&up->port.lock, flags);
}
-#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
-
/*
* Wait for transmitter & holding register to empty
*/
diff --git a/drivers/serial/pmac_zilog.c b/drivers/serial/pmac_zilog.c
index 683e66f18e8..3e2ae4807ae 100644
--- a/drivers/serial/pmac_zilog.c
+++ b/drivers/serial/pmac_zilog.c
@@ -2031,9 +2031,9 @@ static int __init pmz_console_setup(struct console *co, char *options)
/*
* XServe's default to 57600 bps
*/
- if (machine_is_compatible("RackMac1,1")
- || machine_is_compatible("RackMac1,2")
- || machine_is_compatible("MacRISC4"))
+ if (of_machine_is_compatible("RackMac1,1")
+ || of_machine_is_compatible("RackMac1,2")
+ || of_machine_is_compatible("MacRISC4"))
baud = 57600;
/*
diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index f55eb010733..0fee95cd9a4 100644
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -100,6 +100,23 @@ config SPI_BUTTERFLY
inexpensive battery powered microcontroller evaluation board.
This same cable can be used to flash new firmware.
+config SPI_COLDFIRE_QSPI
+ tristate "Freescale Coldfire QSPI controller"
+ depends on (M520x || M523x || M5249 || M527x || M528x || M532x)
+ help
+ This enables support for the Coldfire QSPI controller in master
+ mode.
+
+ This driver can also be built as a module. If so, the module
+ will be called coldfire_qspi.
+
+config SPI_DAVINCI
+ tristate "SPI controller driver for DaVinci/DA8xx SoC's"
+ depends on SPI_MASTER && ARCH_DAVINCI
+ select SPI_BITBANG
+ help
+ SPI master controller for DaVinci and DA8xx SPI modules.
+
config SPI_GPIO
tristate "GPIO-based bitbanging SPI Master"
depends on GENERIC_GPIO
@@ -308,7 +325,7 @@ config SPI_NUC900
#
config SPI_DESIGNWARE
- bool "DesignWare SPI controller core support"
+ tristate "DesignWare SPI controller core support"
depends on SPI_MASTER
help
general driver for SPI controller core from DesignWare
@@ -317,6 +334,10 @@ config SPI_DW_PCI
tristate "PCI interface driver for DW SPI core"
depends on SPI_DESIGNWARE && PCI
+config SPI_DW_MMIO
+ tristate "Memory-mapped io interface driver for DW SPI core"
+ depends on SPI_DESIGNWARE && HAVE_CLK
+
#
# There are lots of SPI device types, with sensors and memory
# being probably the most widely used ones.
diff --git a/drivers/spi/Makefile b/drivers/spi/Makefile
index f3d2810ba11..d7d0f89b797 100644
--- a/drivers/spi/Makefile
+++ b/drivers/spi/Makefile
@@ -16,8 +16,11 @@ obj-$(CONFIG_SPI_BFIN) += spi_bfin5xx.o
obj-$(CONFIG_SPI_BITBANG) += spi_bitbang.o
obj-$(CONFIG_SPI_AU1550) += au1550_spi.o
obj-$(CONFIG_SPI_BUTTERFLY) += spi_butterfly.o
+obj-$(CONFIG_SPI_COLDFIRE_QSPI) += coldfire_qspi.o
+obj-$(CONFIG_SPI_DAVINCI) += davinci_spi.o
obj-$(CONFIG_SPI_DESIGNWARE) += dw_spi.o
obj-$(CONFIG_SPI_DW_PCI) += dw_spi_pci.o
+obj-$(CONFIG_SPI_DW_MMIO) += dw_spi_mmio.o
obj-$(CONFIG_SPI_GPIO) += spi_gpio.o
obj-$(CONFIG_SPI_IMX) += spi_imx.o
obj-$(CONFIG_SPI_LM70_LLP) += spi_lm70llp.o
diff --git a/drivers/spi/coldfire_qspi.c b/drivers/spi/coldfire_qspi.c
new file mode 100644
index 00000000000..59be3efe063
--- /dev/null
+++ b/drivers/spi/coldfire_qspi.c
@@ -0,0 +1,640 @@
+/*
+ * Freescale/Motorola Coldfire Queued SPI driver
+ *
+ * Copyright 2010 Steven King <sfking@fdwdc.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA
+ *
+*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/errno.h>
+#include <linux/platform_device.h>
+#include <linux/workqueue.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/spi/spi.h>
+
+#include <asm/coldfire.h>
+#include <asm/mcfqspi.h>
+
+#define DRIVER_NAME "mcfqspi"
+
+#define MCFQSPI_BUSCLK (MCF_BUSCLK / 2)
+
+#define MCFQSPI_QMR 0x00
+#define MCFQSPI_QMR_MSTR 0x8000
+#define MCFQSPI_QMR_CPOL 0x0200
+#define MCFQSPI_QMR_CPHA 0x0100
+#define MCFQSPI_QDLYR 0x04
+#define MCFQSPI_QDLYR_SPE 0x8000
+#define MCFQSPI_QWR 0x08
+#define MCFQSPI_QWR_HALT 0x8000
+#define MCFQSPI_QWR_WREN 0x4000
+#define MCFQSPI_QWR_CSIV 0x1000
+#define MCFQSPI_QIR 0x0C
+#define MCFQSPI_QIR_WCEFB 0x8000
+#define MCFQSPI_QIR_ABRTB 0x4000
+#define MCFQSPI_QIR_ABRTL 0x1000
+#define MCFQSPI_QIR_WCEFE 0x0800
+#define MCFQSPI_QIR_ABRTE 0x0400
+#define MCFQSPI_QIR_SPIFE 0x0100
+#define MCFQSPI_QIR_WCEF 0x0008
+#define MCFQSPI_QIR_ABRT 0x0004
+#define MCFQSPI_QIR_SPIF 0x0001
+#define MCFQSPI_QAR 0x010
+#define MCFQSPI_QAR_TXBUF 0x00
+#define MCFQSPI_QAR_RXBUF 0x10
+#define MCFQSPI_QAR_CMDBUF 0x20
+#define MCFQSPI_QDR 0x014
+#define MCFQSPI_QCR 0x014
+#define MCFQSPI_QCR_CONT 0x8000
+#define MCFQSPI_QCR_BITSE 0x4000
+#define MCFQSPI_QCR_DT 0x2000
+
+struct mcfqspi {
+ void __iomem *iobase;
+ int irq;
+ struct clk *clk;
+ struct mcfqspi_cs_control *cs_control;
+
+ wait_queue_head_t waitq;
+
+ struct work_struct work;
+ struct workqueue_struct *workq;
+ spinlock_t lock;
+ struct list_head msgq;
+};
+
+static void mcfqspi_wr_qmr(struct mcfqspi *mcfqspi, u16 val)
+{
+ writew(val, mcfqspi->iobase + MCFQSPI_QMR);
+}
+
+static void mcfqspi_wr_qdlyr(struct mcfqspi *mcfqspi, u16 val)
+{
+ writew(val, mcfqspi->iobase + MCFQSPI_QDLYR);
+}
+
+static u16 mcfqspi_rd_qdlyr(struct mcfqspi *mcfqspi)
+{
+ return readw(mcfqspi->iobase + MCFQSPI_QDLYR);
+}
+
+static void mcfqspi_wr_qwr(struct mcfqspi *mcfqspi, u16 val)
+{
+ writew(val, mcfqspi->iobase + MCFQSPI_QWR);
+}
+
+static void mcfqspi_wr_qir(struct mcfqspi *mcfqspi, u16 val)
+{
+ writew(val, mcfqspi->iobase + MCFQSPI_QIR);
+}
+
+static void mcfqspi_wr_qar(struct mcfqspi *mcfqspi, u16 val)
+{
+ writew(val, mcfqspi->iobase + MCFQSPI_QAR);
+}
+
+static void mcfqspi_wr_qdr(struct mcfqspi *mcfqspi, u16 val)
+{
+ writew(val, mcfqspi->iobase + MCFQSPI_QDR);
+}
+
+static u16 mcfqspi_rd_qdr(struct mcfqspi *mcfqspi)
+{
+ return readw(mcfqspi->iobase + MCFQSPI_QDR);
+}
+
+static void mcfqspi_cs_select(struct mcfqspi *mcfqspi, u8 chip_select,
+ bool cs_high)
+{
+ mcfqspi->cs_control->select(mcfqspi->cs_control, chip_select, cs_high);
+}
+
+static void mcfqspi_cs_deselect(struct mcfqspi *mcfqspi, u8 chip_select,
+ bool cs_high)
+{
+ mcfqspi->cs_control->deselect(mcfqspi->cs_control, chip_select, cs_high);
+}
+
+static int mcfqspi_cs_setup(struct mcfqspi *mcfqspi)
+{
+ return (mcfqspi->cs_control && mcfqspi->cs_control->setup) ?
+ mcfqspi->cs_control->setup(mcfqspi->cs_control) : 0;
+}
+
+static void mcfqspi_cs_teardown(struct mcfqspi *mcfqspi)
+{
+ if (mcfqspi->cs_control && mcfqspi->cs_control->teardown)
+ mcfqspi->cs_control->teardown(mcfqspi->cs_control);
+}
+
+static u8 mcfqspi_qmr_baud(u32 speed_hz)
+{
+ return clamp((MCFQSPI_BUSCLK + speed_hz - 1) / speed_hz, 2u, 255u);
+}
+
+static bool mcfqspi_qdlyr_spe(struct mcfqspi *mcfqspi)
+{
+ return mcfqspi_rd_qdlyr(mcfqspi) & MCFQSPI_QDLYR_SPE;
+}
+
+static irqreturn_t mcfqspi_irq_handler(int this_irq, void *dev_id)
+{
+ struct mcfqspi *mcfqspi = dev_id;
+
+ /* clear interrupt */
+ mcfqspi_wr_qir(mcfqspi, MCFQSPI_QIR_SPIFE | MCFQSPI_QIR_SPIF);
+ wake_up(&mcfqspi->waitq);
+
+ return IRQ_HANDLED;
+}
+
+static void mcfqspi_transfer_msg8(struct mcfqspi *mcfqspi, unsigned count,
+ const u8 *txbuf, u8 *rxbuf)
+{
+ unsigned i, n, offset = 0;
+
+ n = min(count, 16u);
+
+ mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_CMDBUF);
+ for (i = 0; i < n; ++i)
+ mcfqspi_wr_qdr(mcfqspi, MCFQSPI_QCR_BITSE);
+
+ mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_TXBUF);
+ if (txbuf)
+ for (i = 0; i < n; ++i)
+ mcfqspi_wr_qdr(mcfqspi, *txbuf++);
+ else
+ for (i = 0; i < count; ++i)
+ mcfqspi_wr_qdr(mcfqspi, 0);
+
+ count -= n;
+ if (count) {
+ u16 qwr = 0xf08;
+ mcfqspi_wr_qwr(mcfqspi, 0x700);
+ mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+
+ do {
+ wait_event(mcfqspi->waitq, !mcfqspi_qdlyr_spe(mcfqspi));
+ mcfqspi_wr_qwr(mcfqspi, qwr);
+ mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+ if (rxbuf) {
+ mcfqspi_wr_qar(mcfqspi,
+ MCFQSPI_QAR_RXBUF + offset);
+ for (i = 0; i < 8; ++i)
+ *rxbuf++ = mcfqspi_rd_qdr(mcfqspi);
+ }
+ n = min(count, 8u);
+ if (txbuf) {
+ mcfqspi_wr_qar(mcfqspi,
+ MCFQSPI_QAR_TXBUF + offset);
+ for (i = 0; i < n; ++i)
+ mcfqspi_wr_qdr(mcfqspi, *txbuf++);
+ }
+ qwr = (offset ? 0x808 : 0) + ((n - 1) << 8);
+ offset ^= 8;
+ count -= n;
+ } while (count);
+ wait_event(mcfqspi->waitq, !mcfqspi_qdlyr_spe(mcfqspi));
+ mcfqspi_wr_qwr(mcfqspi, qwr);
+ mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+ if (rxbuf) {
+ mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_RXBUF + offset);
+ for (i = 0; i < 8; ++i)
+ *rxbuf++ = mcfqspi_rd_qdr(mcfqspi);
+ offset ^= 8;
+ }
+ } else {
+ mcfqspi_wr_qwr(mcfqspi, (n - 1) << 8);
+ mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+ }
+ wait_event(mcfqspi->waitq, !mcfqspi_qdlyr_spe(mcfqspi));
+ if (rxbuf) {
+ mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_RXBUF + offset);
+ for (i = 0; i < n; ++i)
+ *rxbuf++ = mcfqspi_rd_qdr(mcfqspi);
+ }
+}
+
+static void mcfqspi_transfer_msg16(struct mcfqspi *mcfqspi, unsigned count,
+ const u16 *txbuf, u16 *rxbuf)
+{
+ unsigned i, n, offset = 0;
+
+ n = min(count, 16u);
+
+ mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_CMDBUF);
+ for (i = 0; i < n; ++i)
+ mcfqspi_wr_qdr(mcfqspi, MCFQSPI_QCR_BITSE);
+
+ mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_TXBUF);
+ if (txbuf)
+ for (i = 0; i < n; ++i)
+ mcfqspi_wr_qdr(mcfqspi, *txbuf++);
+ else
+ for (i = 0; i < count; ++i)
+ mcfqspi_wr_qdr(mcfqspi, 0);
+
+ count -= n;
+ if (count) {
+ u16 qwr = 0xf08;
+ mcfqspi_wr_qwr(mcfqspi, 0x700);
+ mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+
+ do {
+ wait_event(mcfqspi->waitq, !mcfqspi_qdlyr_spe(mcfqspi));
+ mcfqspi_wr_qwr(mcfqspi, qwr);
+ mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+ if (rxbuf) {
+ mcfqspi_wr_qar(mcfqspi,
+ MCFQSPI_QAR_RXBUF + offset);
+ for (i = 0; i < 8; ++i)
+ *rxbuf++ = mcfqspi_rd_qdr(mcfqspi);
+ }
+ n = min(count, 8u);
+ if (txbuf) {
+ mcfqspi_wr_qar(mcfqspi,
+ MCFQSPI_QAR_TXBUF + offset);
+ for (i = 0; i < n; ++i)
+ mcfqspi_wr_qdr(mcfqspi, *txbuf++);
+ }
+ qwr = (offset ? 0x808 : 0x000) + ((n - 1) << 8);
+ offset ^= 8;
+ count -= n;
+ } while (count);
+ wait_event(mcfqspi->waitq, !mcfqspi_qdlyr_spe(mcfqspi));
+ mcfqspi_wr_qwr(mcfqspi, qwr);
+ mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+ if (rxbuf) {
+ mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_RXBUF + offset);
+ for (i = 0; i < 8; ++i)
+ *rxbuf++ = mcfqspi_rd_qdr(mcfqspi);
+ offset ^= 8;
+ }
+ } else {
+ mcfqspi_wr_qwr(mcfqspi, (n - 1) << 8);
+ mcfqspi_wr_qdlyr(mcfqspi, MCFQSPI_QDLYR_SPE);
+ }
+ wait_event(mcfqspi->waitq, !mcfqspi_qdlyr_spe(mcfqspi));
+ if (rxbuf) {
+ mcfqspi_wr_qar(mcfqspi, MCFQSPI_QAR_RXBUF + offset);
+ for (i = 0; i < n; ++i)
+ *rxbuf++ = mcfqspi_rd_qdr(mcfqspi);
+ }
+}
+
+static void mcfqspi_work(struct work_struct *work)
+{
+ struct mcfqspi *mcfqspi = container_of(work, struct mcfqspi, work);
+ unsigned long flags;
+
+ spin_lock_irqsave(&mcfqspi->lock, flags);
+ while (!list_empty(&mcfqspi->msgq)) {
+ struct spi_message *msg;
+ struct spi_device *spi;
+ struct spi_transfer *xfer;
+ int status = 0;
+
+ msg = container_of(mcfqspi->msgq.next, struct spi_message,
+ queue);
+
+ list_del_init(&mcfqspi->msgq);
+ spin_unlock_irqrestore(&mcfqspi->lock, flags);
+
+ spi = msg->spi;
+
+ list_for_each_entry(xfer, &msg->transfers, transfer_list) {
+ bool cs_high = spi->mode & SPI_CS_HIGH;
+ u16 qmr = MCFQSPI_QMR_MSTR;
+
+ if (xfer->bits_per_word)
+ qmr |= xfer->bits_per_word << 10;
+ else
+ qmr |= spi->bits_per_word << 10;
+ if (spi->mode & SPI_CPHA)
+ qmr |= MCFQSPI_QMR_CPHA;
+ if (spi->mode & SPI_CPOL)
+ qmr |= MCFQSPI_QMR_CPOL;
+ if (xfer->speed_hz)
+ qmr |= mcfqspi_qmr_baud(xfer->speed_hz);
+ else
+ qmr |= mcfqspi_qmr_baud(spi->max_speed_hz);
+ mcfqspi_wr_qmr(mcfqspi, qmr);
+
+ mcfqspi_cs_select(mcfqspi, spi->chip_select, cs_high);
+
+ mcfqspi_wr_qir(mcfqspi, MCFQSPI_QIR_SPIFE);
+ if ((xfer->bits_per_word ? xfer->bits_per_word :
+ spi->bits_per_word) == 8)
+ mcfqspi_transfer_msg8(mcfqspi, xfer->len,
+ xfer->tx_buf,
+ xfer->rx_buf);
+ else
+ mcfqspi_transfer_msg16(mcfqspi, xfer->len / 2,
+ xfer->tx_buf,
+ xfer->rx_buf);
+ mcfqspi_wr_qir(mcfqspi, 0);
+
+ if (xfer->delay_usecs)
+ udelay(xfer->delay_usecs);
+ if (xfer->cs_change) {
+ if (!list_is_last(&xfer->transfer_list,
+ &msg->transfers))
+ mcfqspi_cs_deselect(mcfqspi,
+ spi->chip_select,
+ cs_high);
+ } else {
+ if (list_is_last(&xfer->transfer_list,
+ &msg->transfers))
+ mcfqspi_cs_deselect(mcfqspi,
+ spi->chip_select,
+ cs_high);
+ }
+ msg->actual_length += xfer->len;
+ }
+ msg->status = status;
+ msg->complete(msg->context);
+
+ spin_lock_irqsave(&mcfqspi->lock, flags);
+ }
+ spin_unlock_irqrestore(&mcfqspi->lock, flags);
+}
+
+static int mcfqspi_transfer(struct spi_device *spi, struct spi_message *msg)
+{
+ struct mcfqspi *mcfqspi;
+ struct spi_transfer *xfer;
+ unsigned long flags;
+
+ mcfqspi = spi_master_get_devdata(spi->master);
+
+ list_for_each_entry(xfer, &msg->transfers, transfer_list) {
+ if (xfer->bits_per_word && ((xfer->bits_per_word < 8)
+ || (xfer->bits_per_word > 16))) {
+ dev_dbg(&spi->dev,
+ "%d bits per word is not supported\n",
+ xfer->bits_per_word);
+ goto fail;
+ }
+ if (xfer->speed_hz) {
+ u32 real_speed = MCFQSPI_BUSCLK /
+ mcfqspi_qmr_baud(xfer->speed_hz);
+ if (real_speed != xfer->speed_hz)
+ dev_dbg(&spi->dev,
+ "using speed %d instead of %d\n",
+ real_speed, xfer->speed_hz);
+ }
+ }
+ msg->status = -EINPROGRESS;
+ msg->actual_length = 0;
+
+ spin_lock_irqsave(&mcfqspi->lock, flags);
+ list_add_tail(&msg->queue, &mcfqspi->msgq);
+ queue_work(mcfqspi->workq, &mcfqspi->work);
+ spin_unlock_irqrestore(&mcfqspi->lock, flags);
+
+ return 0;
+fail:
+ msg->status = -EINVAL;
+ return -EINVAL;
+}
+
+static int mcfqspi_setup(struct spi_device *spi)
+{
+ if ((spi->bits_per_word < 8) || (spi->bits_per_word > 16)) {
+ dev_dbg(&spi->dev, "%d bits per word is not supported\n",
+ spi->bits_per_word);
+ return -EINVAL;
+ }
+ if (spi->chip_select >= spi->master->num_chipselect) {
+ dev_dbg(&spi->dev, "%d chip select is out of range\n",
+ spi->chip_select);
+ return -EINVAL;
+ }
+
+ mcfqspi_cs_deselect(spi_master_get_devdata(spi->master),
+ spi->chip_select, spi->mode & SPI_CS_HIGH);
+
+ dev_dbg(&spi->dev,
+ "bits per word %d, chip select %d, speed %d KHz\n",
+ spi->bits_per_word, spi->chip_select,
+ (MCFQSPI_BUSCLK / mcfqspi_qmr_baud(spi->max_speed_hz))
+ / 1000);
+
+ return 0;
+}
+
+static int __devinit mcfqspi_probe(struct platform_device *pdev)
+{
+ struct spi_master *master;
+ struct mcfqspi *mcfqspi;
+ struct resource *res;
+ struct mcfqspi_platform_data *pdata;
+ int status;
+
+ master = spi_alloc_master(&pdev->dev, sizeof(*mcfqspi));
+ if (master == NULL) {
+ dev_dbg(&pdev->dev, "spi_alloc_master failed\n");
+ return -ENOMEM;
+ }
+
+ mcfqspi = spi_master_get_devdata(master);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_dbg(&pdev->dev, "platform_get_resource failed\n");
+ status = -ENXIO;
+ goto fail0;
+ }
+
+ if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
+ dev_dbg(&pdev->dev, "request_mem_region failed\n");
+ status = -EBUSY;
+ goto fail0;
+ }
+
+ mcfqspi->iobase = ioremap(res->start, resource_size(res));
+ if (!mcfqspi->iobase) {
+ dev_dbg(&pdev->dev, "ioremap failed\n");
+ status = -ENOMEM;
+ goto fail1;
+ }
+
+ mcfqspi->irq = platform_get_irq(pdev, 0);
+ if (mcfqspi->irq < 0) {
+ dev_dbg(&pdev->dev, "platform_get_irq failed\n");
+ status = -ENXIO;
+ goto fail2;
+ }
+
+ status = request_irq(mcfqspi->irq, mcfqspi_irq_handler, IRQF_DISABLED,
+ pdev->name, mcfqspi);
+ if (status) {
+ dev_dbg(&pdev->dev, "request_irq failed\n");
+ goto fail2;
+ }
+
+ mcfqspi->clk = clk_get(&pdev->dev, "qspi_clk");
+ if (IS_ERR(mcfqspi->clk)) {
+ dev_dbg(&pdev->dev, "clk_get failed\n");
+ status = PTR_ERR(mcfqspi->clk);
+ goto fail3;
+ }
+ clk_enable(mcfqspi->clk);
+
+ mcfqspi->workq = create_singlethread_workqueue(dev_name(master->dev.parent));
+ if (!mcfqspi->workq) {
+ dev_dbg(&pdev->dev, "create_workqueue failed\n");
+ status = -ENOMEM;
+ goto fail4;
+ }
+ INIT_WORK(&mcfqspi->work, mcfqspi_work);
+ spin_lock_init(&mcfqspi->lock);
+ INIT_LIST_HEAD(&mcfqspi->msgq);
+ init_waitqueue_head(&mcfqspi->waitq);
+
+ pdata = pdev->dev.platform_data;
+ if (!pdata) {
+ dev_dbg(&pdev->dev, "platform data is missing\n");
+ goto fail5;
+ }
+ master->bus_num = pdata->bus_num;
+ master->num_chipselect = pdata->num_chipselect;
+
+ mcfqspi->cs_control = pdata->cs_control;
+ status = mcfqspi_cs_setup(mcfqspi);
+ if (status) {
+ dev_dbg(&pdev->dev, "error initializing cs_control\n");
+ goto fail5;
+ }
+
+ master->mode_bits = SPI_CS_HIGH | SPI_CPOL | SPI_CPHA;
+ master->setup = mcfqspi_setup;
+ master->transfer = mcfqspi_transfer;
+
+ platform_set_drvdata(pdev, master);
+
+ status = spi_register_master(master);
+ if (status) {
+ dev_dbg(&pdev->dev, "spi_register_master failed\n");
+ goto fail6;
+ }
+ dev_info(&pdev->dev, "Coldfire QSPI bus driver\n");
+
+ return 0;
+
+fail6:
+ mcfqspi_cs_teardown(mcfqspi);
+fail5:
+ destroy_workqueue(mcfqspi->workq);
+fail4:
+ clk_disable(mcfqspi->clk);
+ clk_put(mcfqspi->clk);
+fail3:
+ free_irq(mcfqspi->irq, mcfqspi);
+fail2:
+ iounmap(mcfqspi->iobase);
+fail1:
+ release_mem_region(res->start, resource_size(res));
+fail0:
+ spi_master_put(master);
+
+ dev_dbg(&pdev->dev, "Coldfire QSPI probe failed\n");
+
+ return status;
+}
+
+static int __devexit mcfqspi_remove(struct platform_device *pdev)
+{
+ struct spi_master *master = platform_get_drvdata(pdev);
+ struct mcfqspi *mcfqspi = spi_master_get_devdata(master);
+ struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+ /* disable the hardware (set the baud rate to 0) */
+ mcfqspi_wr_qmr(mcfqspi, MCFQSPI_QMR_MSTR);
+
+ platform_set_drvdata(pdev, NULL);
+ mcfqspi_cs_teardown(mcfqspi);
+ destroy_workqueue(mcfqspi->workq);
+ clk_disable(mcfqspi->clk);
+ clk_put(mcfqspi->clk);
+ free_irq(mcfqspi->irq, mcfqspi);
+ iounmap(mcfqspi->iobase);
+ release_mem_region(res->start, resource_size(res));
+ spi_unregister_master(master);
+ spi_master_put(master);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+
+static int mcfqspi_suspend(struct device *dev)
+{
+ struct mcfqspi *mcfqspi = platform_get_drvdata(to_platform_device(dev));
+
+ clk_disable(mcfqspi->clk);
+
+ return 0;
+}
+
+static int mcfqspi_resume(struct device *dev)
+{
+ struct mcfqspi *mcfqspi = platform_get_drvdata(to_platform_device(dev));
+
+ clk_enable(mcfqspi->clk);
+
+ return 0;
+}
+
+static struct dev_pm_ops mcfqspi_dev_pm_ops = {
+ .suspend = mcfqspi_suspend,
+ .resume = mcfqspi_resume,
+};
+
+#define MCFQSPI_DEV_PM_OPS (&mcfqspi_dev_pm_ops)
+#else
+#define MCFQSPI_DEV_PM_OPS NULL
+#endif
+
+static struct platform_driver mcfqspi_driver = {
+ .driver.name = DRIVER_NAME,
+ .driver.owner = THIS_MODULE,
+ .driver.pm = MCFQSPI_DEV_PM_OPS,
+ .remove = __devexit_p(mcfqspi_remove),
+};
+
+static int __init mcfqspi_init(void)
+{
+ return platform_driver_probe(&mcfqspi_driver, mcfqspi_probe);
+}
+module_init(mcfqspi_init);
+
+static void __exit mcfqspi_exit(void)
+{
+ platform_driver_unregister(&mcfqspi_driver);
+}
+module_exit(mcfqspi_exit);
+
+MODULE_AUTHOR("Steven King <sfking@fdwdc.com>");
+MODULE_DESCRIPTION("Coldfire QSPI Controller Driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/drivers/spi/davinci_spi.c b/drivers/spi/davinci_spi.c
new file mode 100644
index 00000000000..225ab60b02c
--- /dev/null
+++ b/drivers/spi/davinci_spi.c
@@ -0,0 +1,1255 @@
+/*
+ * Copyright (C) 2009 Texas Instruments.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+#include <linux/module.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <linux/clk.h>
+#include <linux/dma-mapping.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/spi_bitbang.h>
+
+#include <mach/spi.h>
+#include <mach/edma.h>
+
+#define SPI_NO_RESOURCE ((resource_size_t)-1)
+
+#define SPI_MAX_CHIPSELECT 2
+
+#define CS_DEFAULT 0xFF
+
+#define SPI_BUFSIZ (SMP_CACHE_BYTES + 1)
+#define DAVINCI_DMA_DATA_TYPE_S8 0x01
+#define DAVINCI_DMA_DATA_TYPE_S16 0x02
+#define DAVINCI_DMA_DATA_TYPE_S32 0x04
+
+#define SPIFMT_PHASE_MASK BIT(16)
+#define SPIFMT_POLARITY_MASK BIT(17)
+#define SPIFMT_DISTIMER_MASK BIT(18)
+#define SPIFMT_SHIFTDIR_MASK BIT(20)
+#define SPIFMT_WAITENA_MASK BIT(21)
+#define SPIFMT_PARITYENA_MASK BIT(22)
+#define SPIFMT_ODD_PARITY_MASK BIT(23)
+#define SPIFMT_WDELAY_MASK 0x3f000000u
+#define SPIFMT_WDELAY_SHIFT 24
+#define SPIFMT_CHARLEN_MASK 0x0000001Fu
+
+/* SPIGCR1 */
+#define SPIGCR1_SPIENA_MASK 0x01000000u
+
+/* SPIPC0 */
+#define SPIPC0_DIFUN_MASK BIT(11) /* MISO */
+#define SPIPC0_DOFUN_MASK BIT(10) /* MOSI */
+#define SPIPC0_CLKFUN_MASK BIT(9) /* CLK */
+#define SPIPC0_SPIENA_MASK BIT(8) /* nREADY */
+#define SPIPC0_EN1FUN_MASK BIT(1)
+#define SPIPC0_EN0FUN_MASK BIT(0)
+
+#define SPIINT_MASKALL 0x0101035F
+#define SPI_INTLVL_1 0x000001FFu
+#define SPI_INTLVL_0 0x00000000u
+
+/* SPIDAT1 */
+#define SPIDAT1_CSHOLD_SHIFT 28
+#define SPIDAT1_CSNR_SHIFT 16
+#define SPIGCR1_CLKMOD_MASK BIT(1)
+#define SPIGCR1_MASTER_MASK BIT(0)
+#define SPIGCR1_LOOPBACK_MASK BIT(16)
+
+/* SPIBUF */
+#define SPIBUF_TXFULL_MASK BIT(29)
+#define SPIBUF_RXEMPTY_MASK BIT(31)
+
+/* Error Masks */
+#define SPIFLG_DLEN_ERR_MASK BIT(0)
+#define SPIFLG_TIMEOUT_MASK BIT(1)
+#define SPIFLG_PARERR_MASK BIT(2)
+#define SPIFLG_DESYNC_MASK BIT(3)
+#define SPIFLG_BITERR_MASK BIT(4)
+#define SPIFLG_OVRRUN_MASK BIT(6)
+#define SPIFLG_RX_INTR_MASK BIT(8)
+#define SPIFLG_TX_INTR_MASK BIT(9)
+#define SPIFLG_BUF_INIT_ACTIVE_MASK BIT(24)
+#define SPIFLG_MASK (SPIFLG_DLEN_ERR_MASK \
+ | SPIFLG_TIMEOUT_MASK | SPIFLG_PARERR_MASK \
+ | SPIFLG_DESYNC_MASK | SPIFLG_BITERR_MASK \
+ | SPIFLG_OVRRUN_MASK | SPIFLG_RX_INTR_MASK \
+ | SPIFLG_TX_INTR_MASK \
+ | SPIFLG_BUF_INIT_ACTIVE_MASK)
+
+#define SPIINT_DLEN_ERR_INTR BIT(0)
+#define SPIINT_TIMEOUT_INTR BIT(1)
+#define SPIINT_PARERR_INTR BIT(2)
+#define SPIINT_DESYNC_INTR BIT(3)
+#define SPIINT_BITERR_INTR BIT(4)
+#define SPIINT_OVRRUN_INTR BIT(6)
+#define SPIINT_RX_INTR BIT(8)
+#define SPIINT_TX_INTR BIT(9)
+#define SPIINT_DMA_REQ_EN BIT(16)
+#define SPIINT_ENABLE_HIGHZ BIT(24)
+
+#define SPI_T2CDELAY_SHIFT 16
+#define SPI_C2TDELAY_SHIFT 24
+
+/* SPI Controller registers */
+#define SPIGCR0 0x00
+#define SPIGCR1 0x04
+#define SPIINT 0x08
+#define SPILVL 0x0c
+#define SPIFLG 0x10
+#define SPIPC0 0x14
+#define SPIPC1 0x18
+#define SPIPC2 0x1c
+#define SPIPC3 0x20
+#define SPIPC4 0x24
+#define SPIPC5 0x28
+#define SPIPC6 0x2c
+#define SPIPC7 0x30
+#define SPIPC8 0x34
+#define SPIDAT0 0x38
+#define SPIDAT1 0x3c
+#define SPIBUF 0x40
+#define SPIEMU 0x44
+#define SPIDELAY 0x48
+#define SPIDEF 0x4c
+#define SPIFMT0 0x50
+#define SPIFMT1 0x54
+#define SPIFMT2 0x58
+#define SPIFMT3 0x5c
+#define TGINTVEC0 0x60
+#define TGINTVEC1 0x64
+
+struct davinci_spi_slave {
+ u32 cmd_to_write;
+ u32 clk_ctrl_to_write;
+ u32 bytes_per_word;
+ u8 active_cs;
+};
+
+/* We have 2 DMA channels per CS, one for RX and one for TX */
+struct davinci_spi_dma {
+ int dma_tx_channel;
+ int dma_rx_channel;
+ int dma_tx_sync_dev;
+ int dma_rx_sync_dev;
+ enum dma_event_q eventq;
+
+ struct completion dma_tx_completion;
+ struct completion dma_rx_completion;
+};
+
+/* SPI Controller driver's private data. */
+struct davinci_spi {
+ struct spi_bitbang bitbang;
+ struct clk *clk;
+
+ u8 version;
+ resource_size_t pbase;
+ void __iomem *base;
+ size_t region_size;
+ u32 irq;
+ struct completion done;
+
+ const void *tx;
+ void *rx;
+ u8 *tmp_buf;
+ int count;
+ struct davinci_spi_dma *dma_channels;
+ struct davinci_spi_platform_data *pdata;
+
+ void (*get_rx)(u32 rx_data, struct davinci_spi *);
+ u32 (*get_tx)(struct davinci_spi *);
+
+ struct davinci_spi_slave slave[SPI_MAX_CHIPSELECT];
+};
+
+static unsigned use_dma;
+
+static void davinci_spi_rx_buf_u8(u32 data, struct davinci_spi *davinci_spi)
+{
+ u8 *rx = davinci_spi->rx;
+
+ *rx++ = (u8)data;
+ davinci_spi->rx = rx;
+}
+
+static void davinci_spi_rx_buf_u16(u32 data, struct davinci_spi *davinci_spi)
+{
+ u16 *rx = davinci_spi->rx;
+
+ *rx++ = (u16)data;
+ davinci_spi->rx = rx;
+}
+
+static u32 davinci_spi_tx_buf_u8(struct davinci_spi *davinci_spi)
+{
+ u32 data;
+ const u8 *tx = davinci_spi->tx;
+
+ data = *tx++;
+ davinci_spi->tx = tx;
+ return data;
+}
+
+static u32 davinci_spi_tx_buf_u16(struct davinci_spi *davinci_spi)
+{
+ u32 data;
+ const u16 *tx = davinci_spi->tx;
+
+ data = *tx++;
+ davinci_spi->tx = tx;
+ return data;
+}
+
+static inline void set_io_bits(void __iomem *addr, u32 bits)
+{
+ u32 v = ioread32(addr);
+
+ v |= bits;
+ iowrite32(v, addr);
+}
+
+static inline void clear_io_bits(void __iomem *addr, u32 bits)
+{
+ u32 v = ioread32(addr);
+
+ v &= ~bits;
+ iowrite32(v, addr);
+}
+
+static inline void set_fmt_bits(void __iomem *addr, u32 bits, int cs_num)
+{
+ set_io_bits(addr + SPIFMT0 + (0x4 * cs_num), bits);
+}
+
+static inline void clear_fmt_bits(void __iomem *addr, u32 bits, int cs_num)
+{
+ clear_io_bits(addr + SPIFMT0 + (0x4 * cs_num), bits);
+}
+
+static void davinci_spi_set_dma_req(const struct spi_device *spi, int enable)
+{
+ struct davinci_spi *davinci_spi = spi_master_get_devdata(spi->master);
+
+ if (enable)
+ set_io_bits(davinci_spi->base + SPIINT, SPIINT_DMA_REQ_EN);
+ else
+ clear_io_bits(davinci_spi->base + SPIINT, SPIINT_DMA_REQ_EN);
+}
+
+/*
+ * Interface to control the chip select signal
+ */
+static void davinci_spi_chipselect(struct spi_device *spi, int value)
+{
+ struct davinci_spi *davinci_spi;
+ struct davinci_spi_platform_data *pdata;
+ u32 data1_reg_val = 0;
+
+ davinci_spi = spi_master_get_devdata(spi->master);
+ pdata = davinci_spi->pdata;
+
+ /*
+ * Board specific chip select logic decides the polarity and cs
+ * line for the controller
+ */
+ if (value == BITBANG_CS_INACTIVE) {
+ set_io_bits(davinci_spi->base + SPIDEF, CS_DEFAULT);
+
+ data1_reg_val |= CS_DEFAULT << SPIDAT1_CSNR_SHIFT;
+ iowrite32(data1_reg_val, davinci_spi->base + SPIDAT1);
+
+ while ((ioread32(davinci_spi->base + SPIBUF)
+ & SPIBUF_RXEMPTY_MASK) == 0)
+ cpu_relax();
+ }
+}
+
+/**
+ * davinci_spi_setup_transfer - This functions will determine transfer method
+ * @spi: spi device on which data transfer to be done
+ * @t: spi transfer in which transfer info is filled
+ *
+ * This function determines data transfer method (8/16/32 bit transfer).
+ * It will also set the SPI Clock Control register according to
+ * SPI slave device freq.
+ */
+static int davinci_spi_setup_transfer(struct spi_device *spi,
+ struct spi_transfer *t)
+{
+
+ struct davinci_spi *davinci_spi;
+ struct davinci_spi_platform_data *pdata;
+ u8 bits_per_word = 0;
+ u32 hz = 0, prescale;
+
+ davinci_spi = spi_master_get_devdata(spi->master);
+ pdata = davinci_spi->pdata;
+
+ if (t) {
+ bits_per_word = t->bits_per_word;
+ hz = t->speed_hz;
+ }
+
+ /* if bits_per_word is not set then set it default */
+ if (!bits_per_word)
+ bits_per_word = spi->bits_per_word;
+
+ /*
+ * Assign function pointer to appropriate transfer method
+ * 8bit, 16bit or 32bit transfer
+ */
+ if (bits_per_word <= 8 && bits_per_word >= 2) {
+ davinci_spi->get_rx = davinci_spi_rx_buf_u8;
+ davinci_spi->get_tx = davinci_spi_tx_buf_u8;
+ davinci_spi->slave[spi->chip_select].bytes_per_word = 1;
+ } else if (bits_per_word <= 16 && bits_per_word >= 2) {
+ davinci_spi->get_rx = davinci_spi_rx_buf_u16;
+ davinci_spi->get_tx = davinci_spi_tx_buf_u16;
+ davinci_spi->slave[spi->chip_select].bytes_per_word = 2;
+ } else
+ return -EINVAL;
+
+ if (!hz)
+ hz = spi->max_speed_hz;
+
+ clear_fmt_bits(davinci_spi->base, SPIFMT_CHARLEN_MASK,
+ spi->chip_select);
+ set_fmt_bits(davinci_spi->base, bits_per_word & 0x1f,
+ spi->chip_select);
+
+ prescale = ((clk_get_rate(davinci_spi->clk) / hz) - 1) & 0xff;
+
+ clear_fmt_bits(davinci_spi->base, 0x0000ff00, spi->chip_select);
+ set_fmt_bits(davinci_spi->base, prescale << 8, spi->chip_select);
+
+ return 0;
+}
+
+static void davinci_spi_dma_rx_callback(unsigned lch, u16 ch_status, void *data)
+{
+ struct spi_device *spi = (struct spi_device *)data;
+ struct davinci_spi *davinci_spi;
+ struct davinci_spi_dma *davinci_spi_dma;
+ struct davinci_spi_platform_data *pdata;
+
+ davinci_spi = spi_master_get_devdata(spi->master);
+ davinci_spi_dma = &(davinci_spi->dma_channels[spi->chip_select]);
+ pdata = davinci_spi->pdata;
+
+ if (ch_status == DMA_COMPLETE)
+ edma_stop(davinci_spi_dma->dma_rx_channel);
+ else
+ edma_clean_channel(davinci_spi_dma->dma_rx_channel);
+
+ complete(&davinci_spi_dma->dma_rx_completion);
+ /* We must disable the DMA RX request */
+ davinci_spi_set_dma_req(spi, 0);
+}
+
+static void davinci_spi_dma_tx_callback(unsigned lch, u16 ch_status, void *data)
+{
+ struct spi_device *spi = (struct spi_device *)data;
+ struct davinci_spi *davinci_spi;
+ struct davinci_spi_dma *davinci_spi_dma;
+ struct davinci_spi_platform_data *pdata;
+
+ davinci_spi = spi_master_get_devdata(spi->master);
+ davinci_spi_dma = &(davinci_spi->dma_channels[spi->chip_select]);
+ pdata = davinci_spi->pdata;
+
+ if (ch_status == DMA_COMPLETE)
+ edma_stop(davinci_spi_dma->dma_tx_channel);
+ else
+ edma_clean_channel(davinci_spi_dma->dma_tx_channel);
+
+ complete(&davinci_spi_dma->dma_tx_completion);
+ /* We must disable the DMA TX request */
+ davinci_spi_set_dma_req(spi, 0);
+}
+
+static int davinci_spi_request_dma(struct spi_device *spi)
+{
+ struct davinci_spi *davinci_spi;
+ struct davinci_spi_dma *davinci_spi_dma;
+ struct davinci_spi_platform_data *pdata;
+ struct device *sdev;
+ int r;
+
+ davinci_spi = spi_master_get_devdata(spi->master);
+ davinci_spi_dma = &davinci_spi->dma_channels[spi->chip_select];
+ pdata = davinci_spi->pdata;
+ sdev = davinci_spi->bitbang.master->dev.parent;
+
+ r = edma_alloc_channel(davinci_spi_dma->dma_rx_sync_dev,
+ davinci_spi_dma_rx_callback, spi,
+ davinci_spi_dma->eventq);
+ if (r < 0) {
+ dev_dbg(sdev, "Unable to request DMA channel for SPI RX\n");
+ return -EAGAIN;
+ }
+ davinci_spi_dma->dma_rx_channel = r;
+ r = edma_alloc_channel(davinci_spi_dma->dma_tx_sync_dev,
+ davinci_spi_dma_tx_callback, spi,
+ davinci_spi_dma->eventq);
+ if (r < 0) {
+ edma_free_channel(davinci_spi_dma->dma_rx_channel);
+ davinci_spi_dma->dma_rx_channel = -1;
+ dev_dbg(sdev, "Unable to request DMA channel for SPI TX\n");
+ return -EAGAIN;
+ }
+ davinci_spi_dma->dma_tx_channel = r;
+
+ return 0;
+}
+
+/**
+ * davinci_spi_setup - This functions will set default transfer method
+ * @spi: spi device on which data transfer to be done
+ *
+ * This functions sets the default transfer method.
+ */
+
+static int davinci_spi_setup(struct spi_device *spi)
+{
+ int retval;
+ struct davinci_spi *davinci_spi;
+ struct davinci_spi_dma *davinci_spi_dma;
+ struct device *sdev;
+
+ davinci_spi = spi_master_get_devdata(spi->master);
+ sdev = davinci_spi->bitbang.master->dev.parent;
+
+ /* if bits per word length is zero then set it default 8 */
+ if (!spi->bits_per_word)
+ spi->bits_per_word = 8;
+
+ davinci_spi->slave[spi->chip_select].cmd_to_write = 0;
+
+ if (use_dma && davinci_spi->dma_channels) {
+ davinci_spi_dma = &davinci_spi->dma_channels[spi->chip_select];
+
+ if ((davinci_spi_dma->dma_rx_channel == -1)
+ || (davinci_spi_dma->dma_tx_channel == -1)) {
+ retval = davinci_spi_request_dma(spi);
+ if (retval < 0)
+ return retval;
+ }
+ }
+
+ /*
+ * SPI in DaVinci and DA8xx operate between
+ * 600 KHz and 50 MHz
+ */
+ if (spi->max_speed_hz < 600000 || spi->max_speed_hz > 50000000) {
+ dev_dbg(sdev, "Operating frequency is not in acceptable "
+ "range\n");
+ return -EINVAL;
+ }
+
+ /*
+ * Set up SPIFMTn register, unique to this chipselect.
+ *
+ * NOTE: we could do all of these with one write. Also, some
+ * of the "version 2" features are found in chips that don't
+ * support all of them...
+ */
+ if (spi->mode & SPI_LSB_FIRST)
+ set_fmt_bits(davinci_spi->base, SPIFMT_SHIFTDIR_MASK,
+ spi->chip_select);
+ else
+ clear_fmt_bits(davinci_spi->base, SPIFMT_SHIFTDIR_MASK,
+ spi->chip_select);
+
+ if (spi->mode & SPI_CPOL)
+ set_fmt_bits(davinci_spi->base, SPIFMT_POLARITY_MASK,
+ spi->chip_select);
+ else
+ clear_fmt_bits(davinci_spi->base, SPIFMT_POLARITY_MASK,
+ spi->chip_select);
+
+ if (!(spi->mode & SPI_CPHA))
+ set_fmt_bits(davinci_spi->base, SPIFMT_PHASE_MASK,
+ spi->chip_select);
+ else
+ clear_fmt_bits(davinci_spi->base, SPIFMT_PHASE_MASK,
+ spi->chip_select);
+
+ /*
+ * Version 1 hardware supports two basic SPI modes:
+ * - Standard SPI mode uses 4 pins, with chipselect
+ * - 3 pin SPI is a 4 pin variant without CS (SPI_NO_CS)
+ * (distinct from SPI_3WIRE, with just one data wire;
+ * or similar variants without MOSI or without MISO)
+ *
+ * Version 2 hardware supports an optional handshaking signal,
+ * so it can support two more modes:
+ * - 5 pin SPI variant is standard SPI plus SPI_READY
+ * - 4 pin with enable is (SPI_READY | SPI_NO_CS)
+ */
+
+ if (davinci_spi->version == SPI_VERSION_2) {
+ clear_fmt_bits(davinci_spi->base, SPIFMT_WDELAY_MASK,
+ spi->chip_select);
+ set_fmt_bits(davinci_spi->base,
+ (davinci_spi->pdata->wdelay
+ << SPIFMT_WDELAY_SHIFT)
+ & SPIFMT_WDELAY_MASK,
+ spi->chip_select);
+
+ if (davinci_spi->pdata->odd_parity)
+ set_fmt_bits(davinci_spi->base,
+ SPIFMT_ODD_PARITY_MASK,
+ spi->chip_select);
+ else
+ clear_fmt_bits(davinci_spi->base,
+ SPIFMT_ODD_PARITY_MASK,
+ spi->chip_select);
+
+ if (davinci_spi->pdata->parity_enable)
+ set_fmt_bits(davinci_spi->base,
+ SPIFMT_PARITYENA_MASK,
+ spi->chip_select);
+ else
+ clear_fmt_bits(davinci_spi->base,
+ SPIFMT_PARITYENA_MASK,
+ spi->chip_select);
+
+ if (davinci_spi->pdata->wait_enable)
+ set_fmt_bits(davinci_spi->base,
+ SPIFMT_WAITENA_MASK,
+ spi->chip_select);
+ else
+ clear_fmt_bits(davinci_spi->base,
+ SPIFMT_WAITENA_MASK,
+ spi->chip_select);
+
+ if (davinci_spi->pdata->timer_disable)
+ set_fmt_bits(davinci_spi->base,
+ SPIFMT_DISTIMER_MASK,
+ spi->chip_select);
+ else
+ clear_fmt_bits(davinci_spi->base,
+ SPIFMT_DISTIMER_MASK,
+ spi->chip_select);
+ }
+
+ retval = davinci_spi_setup_transfer(spi, NULL);
+
+ return retval;
+}
+
+static void davinci_spi_cleanup(struct spi_device *spi)
+{
+ struct davinci_spi *davinci_spi = spi_master_get_devdata(spi->master);
+ struct davinci_spi_dma *davinci_spi_dma;
+
+ davinci_spi_dma = &davinci_spi->dma_channels[spi->chip_select];
+
+ if (use_dma && davinci_spi->dma_channels) {
+ davinci_spi_dma = &davinci_spi->dma_channels[spi->chip_select];
+
+ if ((davinci_spi_dma->dma_rx_channel != -1)
+ && (davinci_spi_dma->dma_tx_channel != -1)) {
+ edma_free_channel(davinci_spi_dma->dma_tx_channel);
+ edma_free_channel(davinci_spi_dma->dma_rx_channel);
+ }
+ }
+}
+
+static int davinci_spi_bufs_prep(struct spi_device *spi,
+ struct davinci_spi *davinci_spi)
+{
+ int op_mode = 0;
+
+ /*
+ * REVISIT unless devices disagree about SPI_LOOP or
+ * SPI_READY (SPI_NO_CS only allows one device!), this
+ * should not need to be done before each message...
+ * optimize for both flags staying cleared.
+ */
+
+ op_mode = SPIPC0_DIFUN_MASK
+ | SPIPC0_DOFUN_MASK
+ | SPIPC0_CLKFUN_MASK;
+ if (!(spi->mode & SPI_NO_CS))
+ op_mode |= 1 << spi->chip_select;
+ if (spi->mode & SPI_READY)
+ op_mode |= SPIPC0_SPIENA_MASK;
+
+ iowrite32(op_mode, davinci_spi->base + SPIPC0);
+
+ if (spi->mode & SPI_LOOP)
+ set_io_bits(davinci_spi->base + SPIGCR1,
+ SPIGCR1_LOOPBACK_MASK);
+ else
+ clear_io_bits(davinci_spi->base + SPIGCR1,
+ SPIGCR1_LOOPBACK_MASK);
+
+ return 0;
+}
+
+static int davinci_spi_check_error(struct davinci_spi *davinci_spi,
+ int int_status)
+{
+ struct device *sdev = davinci_spi->bitbang.master->dev.parent;
+
+ if (int_status & SPIFLG_TIMEOUT_MASK) {
+ dev_dbg(sdev, "SPI Time-out Error\n");
+ return -ETIMEDOUT;
+ }
+ if (int_status & SPIFLG_DESYNC_MASK) {
+ dev_dbg(sdev, "SPI Desynchronization Error\n");
+ return -EIO;
+ }
+ if (int_status & SPIFLG_BITERR_MASK) {
+ dev_dbg(sdev, "SPI Bit error\n");
+ return -EIO;
+ }
+
+ if (davinci_spi->version == SPI_VERSION_2) {
+ if (int_status & SPIFLG_DLEN_ERR_MASK) {
+ dev_dbg(sdev, "SPI Data Length Error\n");
+ return -EIO;
+ }
+ if (int_status & SPIFLG_PARERR_MASK) {
+ dev_dbg(sdev, "SPI Parity Error\n");
+ return -EIO;
+ }
+ if (int_status & SPIFLG_OVRRUN_MASK) {
+ dev_dbg(sdev, "SPI Data Overrun error\n");
+ return -EIO;
+ }
+ if (int_status & SPIFLG_TX_INTR_MASK) {
+ dev_dbg(sdev, "SPI TX intr bit set\n");
+ return -EIO;
+ }
+ if (int_status & SPIFLG_BUF_INIT_ACTIVE_MASK) {
+ dev_dbg(sdev, "SPI Buffer Init Active\n");
+ return -EBUSY;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * davinci_spi_bufs - functions which will handle transfer data
+ * @spi: spi device on which data transfer to be done
+ * @t: spi transfer in which transfer info is filled
+ *
+ * This function will put data to be transferred into data register
+ * of SPI controller and then wait until the completion will be marked
+ * by the IRQ Handler.
+ */
+static int davinci_spi_bufs_pio(struct spi_device *spi, struct spi_transfer *t)
+{
+ struct davinci_spi *davinci_spi;
+ int int_status, count, ret;
+ u8 conv, tmp;
+ u32 tx_data, data1_reg_val;
+ u32 buf_val, flg_val;
+ struct davinci_spi_platform_data *pdata;
+
+ davinci_spi = spi_master_get_devdata(spi->master);
+ pdata = davinci_spi->pdata;
+
+ davinci_spi->tx = t->tx_buf;
+ davinci_spi->rx = t->rx_buf;
+
+ /* convert len to words based on bits_per_word */
+ conv = davinci_spi->slave[spi->chip_select].bytes_per_word;
+ davinci_spi->count = t->len / conv;
+
+ INIT_COMPLETION(davinci_spi->done);
+
+ ret = davinci_spi_bufs_prep(spi, davinci_spi);
+ if (ret)
+ return ret;
+
+ /* Enable SPI */
+ set_io_bits(davinci_spi->base + SPIGCR1, SPIGCR1_SPIENA_MASK);
+
+ iowrite32(0 | (pdata->c2tdelay << SPI_C2TDELAY_SHIFT) |
+ (pdata->t2cdelay << SPI_T2CDELAY_SHIFT),
+ davinci_spi->base + SPIDELAY);
+
+ count = davinci_spi->count;
+ data1_reg_val = pdata->cs_hold << SPIDAT1_CSHOLD_SHIFT;
+ tmp = ~(0x1 << spi->chip_select);
+
+ clear_io_bits(davinci_spi->base + SPIDEF, ~tmp);
+
+ data1_reg_val |= tmp << SPIDAT1_CSNR_SHIFT;
+
+ while ((ioread32(davinci_spi->base + SPIBUF)
+ & SPIBUF_RXEMPTY_MASK) == 0)
+ cpu_relax();
+
+ /* Determine the command to execute READ or WRITE */
+ if (t->tx_buf) {
+ clear_io_bits(davinci_spi->base + SPIINT, SPIINT_MASKALL);
+
+ while (1) {
+ tx_data = davinci_spi->get_tx(davinci_spi);
+
+ data1_reg_val &= ~(0xFFFF);
+ data1_reg_val |= (0xFFFF & tx_data);
+
+ buf_val = ioread32(davinci_spi->base + SPIBUF);
+ if ((buf_val & SPIBUF_TXFULL_MASK) == 0) {
+ iowrite32(data1_reg_val,
+ davinci_spi->base + SPIDAT1);
+
+ count--;
+ }
+ while (ioread32(davinci_spi->base + SPIBUF)
+ & SPIBUF_RXEMPTY_MASK)
+ cpu_relax();
+
+ /* getting the returned byte */
+ if (t->rx_buf) {
+ buf_val = ioread32(davinci_spi->base + SPIBUF);
+ davinci_spi->get_rx(buf_val, davinci_spi);
+ }
+ if (count <= 0)
+ break;
+ }
+ } else {
+ if (pdata->poll_mode) {
+ while (1) {
+ /* keeps the serial clock going */
+ if ((ioread32(davinci_spi->base + SPIBUF)
+ & SPIBUF_TXFULL_MASK) == 0)
+ iowrite32(data1_reg_val,
+ davinci_spi->base + SPIDAT1);
+
+ while (ioread32(davinci_spi->base + SPIBUF) &
+ SPIBUF_RXEMPTY_MASK)
+ cpu_relax();
+
+ flg_val = ioread32(davinci_spi->base + SPIFLG);
+ buf_val = ioread32(davinci_spi->base + SPIBUF);
+
+ davinci_spi->get_rx(buf_val, davinci_spi);
+
+ count--;
+ if (count <= 0)
+ break;
+ }
+ } else { /* Receive in Interrupt mode */
+ int i;
+
+ for (i = 0; i < davinci_spi->count; i++) {
+ set_io_bits(davinci_spi->base + SPIINT,
+ SPIINT_BITERR_INTR
+ | SPIINT_OVRRUN_INTR
+ | SPIINT_RX_INTR);
+
+ iowrite32(data1_reg_val,
+ davinci_spi->base + SPIDAT1);
+
+ while (ioread32(davinci_spi->base + SPIINT) &
+ SPIINT_RX_INTR)
+ cpu_relax();
+ }
+ iowrite32((data1_reg_val & 0x0ffcffff),
+ davinci_spi->base + SPIDAT1);
+ }
+ }
+
+ /*
+ * Check for bit error, desync error,parity error,timeout error and
+ * receive overflow errors
+ */
+ int_status = ioread32(davinci_spi->base + SPIFLG);
+
+ ret = davinci_spi_check_error(davinci_spi, int_status);
+ if (ret != 0)
+ return ret;
+
+ /* SPI Framework maintains the count only in bytes so convert back */
+ davinci_spi->count *= conv;
+
+ return t->len;
+}
+
+#define DAVINCI_DMA_DATA_TYPE_S8 0x01
+#define DAVINCI_DMA_DATA_TYPE_S16 0x02
+#define DAVINCI_DMA_DATA_TYPE_S32 0x04
+
+static int davinci_spi_bufs_dma(struct spi_device *spi, struct spi_transfer *t)
+{
+ struct davinci_spi *davinci_spi;
+ int int_status = 0;
+ int count, temp_count;
+ u8 conv = 1;
+ u8 tmp;
+ u32 data1_reg_val;
+ struct davinci_spi_dma *davinci_spi_dma;
+ int word_len, data_type, ret;
+ unsigned long tx_reg, rx_reg;
+ struct davinci_spi_platform_data *pdata;
+ struct device *sdev;
+
+ davinci_spi = spi_master_get_devdata(spi->master);
+ pdata = davinci_spi->pdata;
+ sdev = davinci_spi->bitbang.master->dev.parent;
+
+ davinci_spi_dma = &davinci_spi->dma_channels[spi->chip_select];
+
+ tx_reg = (unsigned long)davinci_spi->pbase + SPIDAT1;
+ rx_reg = (unsigned long)davinci_spi->pbase + SPIBUF;
+
+ davinci_spi->tx = t->tx_buf;
+ davinci_spi->rx = t->rx_buf;
+
+ /* convert len to words based on bits_per_word */
+ conv = davinci_spi->slave[spi->chip_select].bytes_per_word;
+ davinci_spi->count = t->len / conv;
+
+ INIT_COMPLETION(davinci_spi->done);
+
+ init_completion(&davinci_spi_dma->dma_rx_completion);
+ init_completion(&davinci_spi_dma->dma_tx_completion);
+
+ word_len = conv * 8;
+
+ if (word_len <= 8)
+ data_type = DAVINCI_DMA_DATA_TYPE_S8;
+ else if (word_len <= 16)
+ data_type = DAVINCI_DMA_DATA_TYPE_S16;
+ else if (word_len <= 32)
+ data_type = DAVINCI_DMA_DATA_TYPE_S32;
+ else
+ return -EINVAL;
+
+ ret = davinci_spi_bufs_prep(spi, davinci_spi);
+ if (ret)
+ return ret;
+
+ /* Put delay val if required */
+ iowrite32(0 | (pdata->c2tdelay << SPI_C2TDELAY_SHIFT) |
+ (pdata->t2cdelay << SPI_T2CDELAY_SHIFT),
+ davinci_spi->base + SPIDELAY);
+
+ count = davinci_spi->count; /* the number of elements */
+ data1_reg_val = pdata->cs_hold << SPIDAT1_CSHOLD_SHIFT;
+
+ /* CS default = 0xFF */
+ tmp = ~(0x1 << spi->chip_select);
+
+ clear_io_bits(davinci_spi->base + SPIDEF, ~tmp);
+
+ data1_reg_val |= tmp << SPIDAT1_CSNR_SHIFT;
+
+ /* disable all interrupts for dma transfers */
+ clear_io_bits(davinci_spi->base + SPIINT, SPIINT_MASKALL);
+ /* Disable SPI to write configuration bits in SPIDAT */
+ clear_io_bits(davinci_spi->base + SPIGCR1, SPIGCR1_SPIENA_MASK);
+ iowrite32(data1_reg_val, davinci_spi->base + SPIDAT1);
+ /* Enable SPI */
+ set_io_bits(davinci_spi->base + SPIGCR1, SPIGCR1_SPIENA_MASK);
+
+ while ((ioread32(davinci_spi->base + SPIBUF)
+ & SPIBUF_RXEMPTY_MASK) == 0)
+ cpu_relax();
+
+
+ if (t->tx_buf) {
+ t->tx_dma = dma_map_single(&spi->dev, (void *)t->tx_buf, count,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(&spi->dev, t->tx_dma)) {
+ dev_dbg(sdev, "Unable to DMA map a %d bytes"
+ " TX buffer\n", count);
+ return -ENOMEM;
+ }
+ temp_count = count;
+ } else {
+ /* We need TX clocking for RX transaction */
+ t->tx_dma = dma_map_single(&spi->dev,
+ (void *)davinci_spi->tmp_buf, count + 1,
+ DMA_TO_DEVICE);
+ if (dma_mapping_error(&spi->dev, t->tx_dma)) {
+ dev_dbg(sdev, "Unable to DMA map a %d bytes"
+ " TX tmp buffer\n", count);
+ return -ENOMEM;
+ }
+ temp_count = count + 1;
+ }
+
+ edma_set_transfer_params(davinci_spi_dma->dma_tx_channel,
+ data_type, temp_count, 1, 0, ASYNC);
+ edma_set_dest(davinci_spi_dma->dma_tx_channel, tx_reg, INCR, W8BIT);
+ edma_set_src(davinci_spi_dma->dma_tx_channel, t->tx_dma, INCR, W8BIT);
+ edma_set_src_index(davinci_spi_dma->dma_tx_channel, data_type, 0);
+ edma_set_dest_index(davinci_spi_dma->dma_tx_channel, 0, 0);
+
+ if (t->rx_buf) {
+ /* initiate transaction */
+ iowrite32(data1_reg_val, davinci_spi->base + SPIDAT1);
+
+ t->rx_dma = dma_map_single(&spi->dev, (void *)t->rx_buf, count,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(&spi->dev, t->rx_dma)) {
+ dev_dbg(sdev, "Couldn't DMA map a %d bytes RX buffer\n",
+ count);
+ if (t->tx_buf != NULL)
+ dma_unmap_single(NULL, t->tx_dma,
+ count, DMA_TO_DEVICE);
+ return -ENOMEM;
+ }
+ edma_set_transfer_params(davinci_spi_dma->dma_rx_channel,
+ data_type, count, 1, 0, ASYNC);
+ edma_set_src(davinci_spi_dma->dma_rx_channel,
+ rx_reg, INCR, W8BIT);
+ edma_set_dest(davinci_spi_dma->dma_rx_channel,
+ t->rx_dma, INCR, W8BIT);
+ edma_set_src_index(davinci_spi_dma->dma_rx_channel, 0, 0);
+ edma_set_dest_index(davinci_spi_dma->dma_rx_channel,
+ data_type, 0);
+ }
+
+ if ((t->tx_buf) || (t->rx_buf))
+ edma_start(davinci_spi_dma->dma_tx_channel);
+
+ if (t->rx_buf)
+ edma_start(davinci_spi_dma->dma_rx_channel);
+
+ if ((t->rx_buf) || (t->tx_buf))
+ davinci_spi_set_dma_req(spi, 1);
+
+ if (t->tx_buf)
+ wait_for_completion_interruptible(
+ &davinci_spi_dma->dma_tx_completion);
+
+ if (t->rx_buf)
+ wait_for_completion_interruptible(
+ &davinci_spi_dma->dma_rx_completion);
+
+ dma_unmap_single(NULL, t->tx_dma, temp_count, DMA_TO_DEVICE);
+
+ if (t->rx_buf)
+ dma_unmap_single(NULL, t->rx_dma, count, DMA_FROM_DEVICE);
+
+ /*
+ * Check for bit error, desync error,parity error,timeout error and
+ * receive overflow errors
+ */
+ int_status = ioread32(davinci_spi->base + SPIFLG);
+
+ ret = davinci_spi_check_error(davinci_spi, int_status);
+ if (ret != 0)
+ return ret;
+
+ /* SPI Framework maintains the count only in bytes so convert back */
+ davinci_spi->count *= conv;
+
+ return t->len;
+}
+
+/**
+ * davinci_spi_irq - IRQ handler for DaVinci SPI
+ * @irq: IRQ number for this SPI Master
+ * @context_data: structure for SPI Master controller davinci_spi
+ */
+static irqreturn_t davinci_spi_irq(s32 irq, void *context_data)
+{
+ struct davinci_spi *davinci_spi = context_data;
+ u32 int_status, rx_data = 0;
+ irqreturn_t ret = IRQ_NONE;
+
+ int_status = ioread32(davinci_spi->base + SPIFLG);
+
+ while ((int_status & SPIFLG_RX_INTR_MASK)) {
+ if (likely(int_status & SPIFLG_RX_INTR_MASK)) {
+ ret = IRQ_HANDLED;
+
+ rx_data = ioread32(davinci_spi->base + SPIBUF);
+ davinci_spi->get_rx(rx_data, davinci_spi);
+
+ /* Disable Receive Interrupt */
+ iowrite32(~(SPIINT_RX_INTR | SPIINT_TX_INTR),
+ davinci_spi->base + SPIINT);
+ } else
+ (void)davinci_spi_check_error(davinci_spi, int_status);
+
+ int_status = ioread32(davinci_spi->base + SPIFLG);
+ }
+
+ return ret;
+}
+
+/**
+ * davinci_spi_probe - probe function for SPI Master Controller
+ * @pdev: platform_device structure which contains plateform specific data
+ */
+static int davinci_spi_probe(struct platform_device *pdev)
+{
+ struct spi_master *master;
+ struct davinci_spi *davinci_spi;
+ struct davinci_spi_platform_data *pdata;
+ struct resource *r, *mem;
+ resource_size_t dma_rx_chan = SPI_NO_RESOURCE;
+ resource_size_t dma_tx_chan = SPI_NO_RESOURCE;
+ resource_size_t dma_eventq = SPI_NO_RESOURCE;
+ int i = 0, ret = 0;
+
+ pdata = pdev->dev.platform_data;
+ if (pdata == NULL) {
+ ret = -ENODEV;
+ goto err;
+ }
+
+ master = spi_alloc_master(&pdev->dev, sizeof(struct davinci_spi));
+ if (master == NULL) {
+ ret = -ENOMEM;
+ goto err;
+ }
+
+ dev_set_drvdata(&pdev->dev, master);
+
+ davinci_spi = spi_master_get_devdata(master);
+ if (davinci_spi == NULL) {
+ ret = -ENOENT;
+ goto free_master;
+ }
+
+ r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (r == NULL) {
+ ret = -ENOENT;
+ goto free_master;
+ }
+
+ davinci_spi->pbase = r->start;
+ davinci_spi->region_size = resource_size(r);
+ davinci_spi->pdata = pdata;
+
+ mem = request_mem_region(r->start, davinci_spi->region_size,
+ pdev->name);
+ if (mem == NULL) {
+ ret = -EBUSY;
+ goto free_master;
+ }
+
+ davinci_spi->base = (struct davinci_spi_reg __iomem *)
+ ioremap(r->start, davinci_spi->region_size);
+ if (davinci_spi->base == NULL) {
+ ret = -ENOMEM;
+ goto release_region;
+ }
+
+ davinci_spi->irq = platform_get_irq(pdev, 0);
+ if (davinci_spi->irq <= 0) {
+ ret = -EINVAL;
+ goto unmap_io;
+ }
+
+ ret = request_irq(davinci_spi->irq, davinci_spi_irq, IRQF_DISABLED,
+ dev_name(&pdev->dev), davinci_spi);
+ if (ret)
+ goto unmap_io;
+
+ /* Allocate tmp_buf for tx_buf */
+ davinci_spi->tmp_buf = kzalloc(SPI_BUFSIZ, GFP_KERNEL);
+ if (davinci_spi->tmp_buf == NULL) {
+ ret = -ENOMEM;
+ goto irq_free;
+ }
+
+ davinci_spi->bitbang.master = spi_master_get(master);
+ if (davinci_spi->bitbang.master == NULL) {
+ ret = -ENODEV;
+ goto free_tmp_buf;
+ }
+
+ davinci_spi->clk = clk_get(&pdev->dev, NULL);
+ if (IS_ERR(davinci_spi->clk)) {
+ ret = -ENODEV;
+ goto put_master;
+ }
+ clk_enable(davinci_spi->clk);
+
+
+ master->bus_num = pdev->id;
+ master->num_chipselect = pdata->num_chipselect;
+ master->setup = davinci_spi_setup;
+ master->cleanup = davinci_spi_cleanup;
+
+ davinci_spi->bitbang.chipselect = davinci_spi_chipselect;
+ davinci_spi->bitbang.setup_transfer = davinci_spi_setup_transfer;
+
+ davinci_spi->version = pdata->version;
+ use_dma = pdata->use_dma;
+
+ davinci_spi->bitbang.flags = SPI_NO_CS | SPI_LSB_FIRST | SPI_LOOP;
+ if (davinci_spi->version == SPI_VERSION_2)
+ davinci_spi->bitbang.flags |= SPI_READY;
+
+ if (use_dma) {
+ r = platform_get_resource(pdev, IORESOURCE_DMA, 0);
+ if (r)
+ dma_rx_chan = r->start;
+ r = platform_get_resource(pdev, IORESOURCE_DMA, 1);
+ if (r)
+ dma_tx_chan = r->start;
+ r = platform_get_resource(pdev, IORESOURCE_DMA, 2);
+ if (r)
+ dma_eventq = r->start;
+ }
+
+ if (!use_dma ||
+ dma_rx_chan == SPI_NO_RESOURCE ||
+ dma_tx_chan == SPI_NO_RESOURCE ||
+ dma_eventq == SPI_NO_RESOURCE) {
+ davinci_spi->bitbang.txrx_bufs = davinci_spi_bufs_pio;
+ use_dma = 0;
+ } else {
+ davinci_spi->bitbang.txrx_bufs = davinci_spi_bufs_dma;
+ davinci_spi->dma_channels = kzalloc(master->num_chipselect
+ * sizeof(struct davinci_spi_dma), GFP_KERNEL);
+ if (davinci_spi->dma_channels == NULL) {
+ ret = -ENOMEM;
+ goto free_clk;
+ }
+
+ for (i = 0; i < master->num_chipselect; i++) {
+ davinci_spi->dma_channels[i].dma_rx_channel = -1;
+ davinci_spi->dma_channels[i].dma_rx_sync_dev =
+ dma_rx_chan;
+ davinci_spi->dma_channels[i].dma_tx_channel = -1;
+ davinci_spi->dma_channels[i].dma_tx_sync_dev =
+ dma_tx_chan;
+ davinci_spi->dma_channels[i].eventq = dma_eventq;
+ }
+ dev_info(&pdev->dev, "DaVinci SPI driver in EDMA mode\n"
+ "Using RX channel = %d , TX channel = %d and "
+ "event queue = %d", dma_rx_chan, dma_tx_chan,
+ dma_eventq);
+ }
+
+ davinci_spi->get_rx = davinci_spi_rx_buf_u8;
+ davinci_spi->get_tx = davinci_spi_tx_buf_u8;
+
+ init_completion(&davinci_spi->done);
+
+ /* Reset In/OUT SPI module */
+ iowrite32(0, davinci_spi->base + SPIGCR0);
+ udelay(100);
+ iowrite32(1, davinci_spi->base + SPIGCR0);
+
+ /* Clock internal */
+ if (davinci_spi->pdata->clk_internal)
+ set_io_bits(davinci_spi->base + SPIGCR1,
+ SPIGCR1_CLKMOD_MASK);
+ else
+ clear_io_bits(davinci_spi->base + SPIGCR1,
+ SPIGCR1_CLKMOD_MASK);
+
+ /* master mode default */
+ set_io_bits(davinci_spi->base + SPIGCR1, SPIGCR1_MASTER_MASK);
+
+ if (davinci_spi->pdata->intr_level)
+ iowrite32(SPI_INTLVL_1, davinci_spi->base + SPILVL);
+ else
+ iowrite32(SPI_INTLVL_0, davinci_spi->base + SPILVL);
+
+ ret = spi_bitbang_start(&davinci_spi->bitbang);
+ if (ret)
+ goto free_clk;
+
+ dev_info(&pdev->dev, "Controller at 0x%p \n", davinci_spi->base);
+
+ if (!pdata->poll_mode)
+ dev_info(&pdev->dev, "Operating in interrupt mode"
+ " using IRQ %d\n", davinci_spi->irq);
+
+ return ret;
+
+free_clk:
+ clk_disable(davinci_spi->clk);
+ clk_put(davinci_spi->clk);
+put_master:
+ spi_master_put(master);
+free_tmp_buf:
+ kfree(davinci_spi->tmp_buf);
+irq_free:
+ free_irq(davinci_spi->irq, davinci_spi);
+unmap_io:
+ iounmap(davinci_spi->base);
+release_region:
+ release_mem_region(davinci_spi->pbase, davinci_spi->region_size);
+free_master:
+ kfree(master);
+err:
+ return ret;
+}
+
+/**
+ * davinci_spi_remove - remove function for SPI Master Controller
+ * @pdev: platform_device structure which contains plateform specific data
+ *
+ * This function will do the reverse action of davinci_spi_probe function
+ * It will free the IRQ and SPI controller's memory region.
+ * It will also call spi_bitbang_stop to destroy the work queue which was
+ * created by spi_bitbang_start.
+ */
+static int __exit davinci_spi_remove(struct platform_device *pdev)
+{
+ struct davinci_spi *davinci_spi;
+ struct spi_master *master;
+
+ master = dev_get_drvdata(&pdev->dev);
+ davinci_spi = spi_master_get_devdata(master);
+
+ spi_bitbang_stop(&davinci_spi->bitbang);
+
+ clk_disable(davinci_spi->clk);
+ clk_put(davinci_spi->clk);
+ spi_master_put(master);
+ kfree(davinci_spi->tmp_buf);
+ free_irq(davinci_spi->irq, davinci_spi);
+ iounmap(davinci_spi->base);
+ release_mem_region(davinci_spi->pbase, davinci_spi->region_size);
+
+ return 0;
+}
+
+static struct platform_driver davinci_spi_driver = {
+ .driver.name = "spi_davinci",
+ .remove = __exit_p(davinci_spi_remove),
+};
+
+static int __init davinci_spi_init(void)
+{
+ return platform_driver_probe(&davinci_spi_driver, davinci_spi_probe);
+}
+module_init(davinci_spi_init);
+
+static void __exit davinci_spi_exit(void)
+{
+ platform_driver_unregister(&davinci_spi_driver);
+}
+module_exit(davinci_spi_exit);
+
+MODULE_DESCRIPTION("TI DaVinci SPI Master Controller Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/spi/dw_spi.c b/drivers/spi/dw_spi.c
index 31620fae77b..8ed38f1d6c1 100644
--- a/drivers/spi/dw_spi.c
+++ b/drivers/spi/dw_spi.c
@@ -152,6 +152,7 @@ static void mrst_spi_debugfs_remove(struct dw_spi *dws)
#else
static inline int mrst_spi_debugfs_init(struct dw_spi *dws)
{
+ return 0;
}
static inline void mrst_spi_debugfs_remove(struct dw_spi *dws)
@@ -161,14 +162,14 @@ static inline void mrst_spi_debugfs_remove(struct dw_spi *dws)
static void wait_till_not_busy(struct dw_spi *dws)
{
- unsigned long end = jiffies + usecs_to_jiffies(1000);
+ unsigned long end = jiffies + 1 + usecs_to_jiffies(1000);
while (time_before(jiffies, end)) {
if (!(dw_readw(dws, sr) & SR_BUSY))
return;
}
dev_err(&dws->master->dev,
- "DW SPI: Stutus keeps busy for 1000us after a read/write!\n");
+ "DW SPI: Status keeps busy for 1000us after a read/write!\n");
}
static void flush(struct dw_spi *dws)
@@ -358,6 +359,8 @@ static void transfer_complete(struct dw_spi *dws)
static irqreturn_t interrupt_transfer(struct dw_spi *dws)
{
u16 irq_status, irq_mask = 0x3f;
+ u32 int_level = dws->fifo_len / 2;
+ u32 left;
irq_status = dw_readw(dws, isr) & irq_mask;
/* Error handling */
@@ -369,22 +372,23 @@ static irqreturn_t interrupt_transfer(struct dw_spi *dws)
return IRQ_HANDLED;
}
- /* INT comes from tx */
- if (dws->tx && (irq_status & SPI_INT_TXEI)) {
- while (dws->tx < dws->tx_end)
+ if (irq_status & SPI_INT_TXEI) {
+ spi_mask_intr(dws, SPI_INT_TXEI);
+
+ left = (dws->tx_end - dws->tx) / dws->n_bytes;
+ left = (left > int_level) ? int_level : left;
+
+ while (left--)
dws->write(dws);
+ dws->read(dws);
- if (dws->tx == dws->tx_end) {
- spi_mask_intr(dws, SPI_INT_TXEI);
+ /* Re-enable the IRQ if there is still data left to tx */
+ if (dws->tx_end > dws->tx)
+ spi_umask_intr(dws, SPI_INT_TXEI);
+ else
transfer_complete(dws);
- }
}
- /* INT comes from rx */
- if (dws->rx && (irq_status & SPI_INT_RXFI)) {
- if (dws->read(dws))
- transfer_complete(dws);
- }
return IRQ_HANDLED;
}
@@ -404,12 +408,9 @@ static irqreturn_t dw_spi_irq(int irq, void *dev_id)
/* Must be called inside pump_transfers() */
static void poll_transfer(struct dw_spi *dws)
{
- if (dws->tx) {
- while (dws->write(dws))
- dws->read(dws);
- }
+ while (dws->write(dws))
+ dws->read(dws);
- dws->read(dws);
transfer_complete(dws);
}
@@ -428,6 +429,7 @@ static void pump_transfers(unsigned long data)
u8 bits = 0;
u8 imask = 0;
u8 cs_change = 0;
+ u16 txint_level = 0;
u16 clk_div = 0;
u32 speed = 0;
u32 cr0 = 0;
@@ -438,6 +440,9 @@ static void pump_transfers(unsigned long data)
chip = dws->cur_chip;
spi = message->spi;
+ if (unlikely(!chip->clk_div))
+ chip->clk_div = dws->max_freq / chip->speed_hz;
+
if (message->state == ERROR_STATE) {
message->status = -EIO;
goto early_exit;
@@ -492,7 +497,7 @@ static void pump_transfers(unsigned long data)
/* clk_div doesn't support odd number */
clk_div = dws->max_freq / speed;
- clk_div = (clk_div >> 1) << 1;
+ clk_div = (clk_div + 1) & 0xfffe;
chip->speed_hz = speed;
chip->clk_div = clk_div;
@@ -532,14 +537,35 @@ static void pump_transfers(unsigned long data)
}
message->state = RUNNING_STATE;
+ /*
+ * Adjust transfer mode if necessary. Requires platform dependent
+ * chipselect mechanism.
+ */
+ if (dws->cs_control) {
+ if (dws->rx && dws->tx)
+ chip->tmode = 0x00;
+ else if (dws->rx)
+ chip->tmode = 0x02;
+ else
+ chip->tmode = 0x01;
+
+ cr0 &= ~(0x3 << SPI_MODE_OFFSET);
+ cr0 |= (chip->tmode << SPI_TMOD_OFFSET);
+ }
+
/* Check if current transfer is a DMA transaction */
dws->dma_mapped = map_dma_buffers(dws);
+ /*
+ * Interrupt mode
+ * we only need set the TXEI IRQ, as TX/RX always happen syncronizely
+ */
if (!dws->dma_mapped && !chip->poll_mode) {
- if (dws->rx)
- imask |= SPI_INT_RXFI;
- if (dws->tx)
- imask |= SPI_INT_TXEI;
+ int templen = dws->len / dws->n_bytes;
+ txint_level = dws->fifo_len / 2;
+ txint_level = (templen > txint_level) ? txint_level : templen;
+
+ imask |= SPI_INT_TXEI;
dws->transfer_handler = interrupt_transfer;
}
@@ -549,21 +575,23 @@ static void pump_transfers(unsigned long data)
* 2. clk_div is changed
* 3. control value changes
*/
- if (dw_readw(dws, ctrl0) != cr0 || cs_change || clk_div) {
+ if (dw_readw(dws, ctrl0) != cr0 || cs_change || clk_div || imask) {
spi_enable_chip(dws, 0);
if (dw_readw(dws, ctrl0) != cr0)
dw_writew(dws, ctrl0, cr0);
+ spi_set_clk(dws, clk_div ? clk_div : chip->clk_div);
+ spi_chip_sel(dws, spi->chip_select);
+
/* Set the interrupt mask, for poll mode just diable all int */
spi_mask_intr(dws, 0xff);
- if (!chip->poll_mode)
+ if (imask)
spi_umask_intr(dws, imask);
+ if (txint_level)
+ dw_writew(dws, txfltr, txint_level);
- spi_set_clk(dws, clk_div ? clk_div : chip->clk_div);
- spi_chip_sel(dws, spi->chip_select);
spi_enable_chip(dws, 1);
-
if (cs_change)
dws->prev_chip = chip;
}
@@ -712,11 +740,11 @@ static int dw_spi_setup(struct spi_device *spi)
}
chip->bits_per_word = spi->bits_per_word;
+ if (!spi->max_speed_hz) {
+ dev_err(&spi->dev, "No max speed HZ parameter\n");
+ return -EINVAL;
+ }
chip->speed_hz = spi->max_speed_hz;
- if (chip->speed_hz)
- chip->clk_div = 25000000 / chip->speed_hz;
- else
- chip->clk_div = 8; /* default value */
chip->tmode = 0; /* Tx & Rx */
/* Default SPI mode is SCPOL = 0, SCPH = 0 */
@@ -735,7 +763,7 @@ static void dw_spi_cleanup(struct spi_device *spi)
kfree(chip);
}
-static int __init init_queue(struct dw_spi *dws)
+static int __devinit init_queue(struct dw_spi *dws)
{
INIT_LIST_HEAD(&dws->queue);
spin_lock_init(&dws->lock);
@@ -817,6 +845,22 @@ static void spi_hw_init(struct dw_spi *dws)
spi_mask_intr(dws, 0xff);
spi_enable_chip(dws, 1);
flush(dws);
+
+ /*
+ * Try to detect the FIFO depth if not set by interface driver,
+ * the depth could be from 2 to 256 from HW spec
+ */
+ if (!dws->fifo_len) {
+ u32 fifo;
+ for (fifo = 2; fifo <= 257; fifo++) {
+ dw_writew(dws, txfltr, fifo);
+ if (fifo != dw_readw(dws, txfltr))
+ break;
+ }
+
+ dws->fifo_len = (fifo == 257) ? 0 : fifo;
+ dw_writew(dws, txfltr, 0);
+ }
}
int __devinit dw_spi_add_host(struct dw_spi *dws)
@@ -913,6 +957,7 @@ void __devexit dw_spi_remove_host(struct dw_spi *dws)
/* Disconnect from the SPI framework */
spi_unregister_master(dws->master);
}
+EXPORT_SYMBOL(dw_spi_remove_host);
int dw_spi_suspend_host(struct dw_spi *dws)
{
diff --git a/drivers/spi/dw_spi_mmio.c b/drivers/spi/dw_spi_mmio.c
new file mode 100644
index 00000000000..e35b45ac517
--- /dev/null
+++ b/drivers/spi/dw_spi_mmio.c
@@ -0,0 +1,147 @@
+/*
+ * dw_spi_mmio.c - Memory-mapped interface driver for DW SPI Core
+ *
+ * Copyright (c) 2010, Octasic semiconductor.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ */
+
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/spi/dw_spi.h>
+#include <linux/spi/spi.h>
+
+#define DRIVER_NAME "dw_spi_mmio"
+
+struct dw_spi_mmio {
+ struct dw_spi dws;
+ struct clk *clk;
+};
+
+static int __devinit dw_spi_mmio_probe(struct platform_device *pdev)
+{
+ struct dw_spi_mmio *dwsmmio;
+ struct dw_spi *dws;
+ struct resource *mem, *ioarea;
+ int ret;
+
+ dwsmmio = kzalloc(sizeof(struct dw_spi_mmio), GFP_KERNEL);
+ if (!dwsmmio) {
+ ret = -ENOMEM;
+ goto err_end;
+ }
+
+ dws = &dwsmmio->dws;
+
+ /* Get basic io resource and map it */
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!mem) {
+ dev_err(&pdev->dev, "no mem resource?\n");
+ ret = -EINVAL;
+ goto err_kfree;
+ }
+
+ ioarea = request_mem_region(mem->start, resource_size(mem),
+ pdev->name);
+ if (!ioarea) {
+ dev_err(&pdev->dev, "SPI region already claimed\n");
+ ret = -EBUSY;
+ goto err_kfree;
+ }
+
+ dws->regs = ioremap_nocache(mem->start, resource_size(mem));
+ if (!dws->regs) {
+ dev_err(&pdev->dev, "SPI region already mapped\n");
+ ret = -ENOMEM;
+ goto err_release_reg;
+ }
+
+ dws->irq = platform_get_irq(pdev, 0);
+ if (dws->irq < 0) {
+ dev_err(&pdev->dev, "no irq resource?\n");
+ ret = dws->irq; /* -ENXIO */
+ goto err_unmap;
+ }
+
+ dwsmmio->clk = clk_get(&pdev->dev, NULL);
+ if (!dwsmmio->clk) {
+ ret = -ENODEV;
+ goto err_irq;
+ }
+ clk_enable(dwsmmio->clk);
+
+ dws->parent_dev = &pdev->dev;
+ dws->bus_num = 0;
+ dws->num_cs = 4;
+ dws->max_freq = clk_get_rate(dwsmmio->clk);
+
+ ret = dw_spi_add_host(dws);
+ if (ret)
+ goto err_clk;
+
+ platform_set_drvdata(pdev, dwsmmio);
+ return 0;
+
+err_clk:
+ clk_disable(dwsmmio->clk);
+ clk_put(dwsmmio->clk);
+ dwsmmio->clk = NULL;
+err_irq:
+ free_irq(dws->irq, dws);
+err_unmap:
+ iounmap(dws->regs);
+err_release_reg:
+ release_mem_region(mem->start, resource_size(mem));
+err_kfree:
+ kfree(dwsmmio);
+err_end:
+ return ret;
+}
+
+static int __devexit dw_spi_mmio_remove(struct platform_device *pdev)
+{
+ struct dw_spi_mmio *dwsmmio = platform_get_drvdata(pdev);
+ struct resource *mem;
+
+ platform_set_drvdata(pdev, NULL);
+
+ clk_disable(dwsmmio->clk);
+ clk_put(dwsmmio->clk);
+ dwsmmio->clk = NULL;
+
+ free_irq(dwsmmio->dws.irq, &dwsmmio->dws);
+ dw_spi_remove_host(&dwsmmio->dws);
+ iounmap(dwsmmio->dws.regs);
+ kfree(dwsmmio);
+
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(mem->start, resource_size(mem));
+ return 0;
+}
+
+static struct platform_driver dw_spi_mmio_driver = {
+ .remove = __devexit_p(dw_spi_mmio_remove),
+ .driver = {
+ .name = DRIVER_NAME,
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init dw_spi_mmio_init(void)
+{
+ return platform_driver_probe(&dw_spi_mmio_driver, dw_spi_mmio_probe);
+}
+module_init(dw_spi_mmio_init);
+
+static void __exit dw_spi_mmio_exit(void)
+{
+ platform_driver_unregister(&dw_spi_mmio_driver);
+}
+module_exit(dw_spi_mmio_exit);
+
+MODULE_AUTHOR("Jean-Hugues Deschenes <jean-hugues.deschenes@octasic.com>");
+MODULE_DESCRIPTION("Memory-mapped I/O interface driver for DW SPI Core");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/spi/dw_spi_pci.c b/drivers/spi/dw_spi_pci.c
index 34ba6916173..1f0735f9cc7 100644
--- a/drivers/spi/dw_spi_pci.c
+++ b/drivers/spi/dw_spi_pci.c
@@ -73,6 +73,7 @@ static int __devinit spi_pci_probe(struct pci_dev *pdev,
dws->num_cs = 4;
dws->max_freq = 25000000; /* for Moorestwon */
dws->irq = pdev->irq;
+ dws->fifo_len = 40; /* FIFO has 40 words buffer */
ret = dw_spi_add_host(dws);
if (ret)
@@ -98,6 +99,7 @@ static void __devexit spi_pci_remove(struct pci_dev *pdev)
struct dw_spi_pci *dwpci = pci_get_drvdata(pdev);
pci_set_drvdata(pdev, NULL);
+ dw_spi_remove_host(&dwpci->dws);
iounmap(dwpci->dws.regs);
pci_release_region(pdev, 0);
kfree(dwpci);
diff --git a/drivers/spi/mpc52xx_psc_spi.c b/drivers/spi/mpc52xx_psc_spi.c
index f50c81df336..04747868d6c 100644
--- a/drivers/spi/mpc52xx_psc_spi.c
+++ b/drivers/spi/mpc52xx_psc_spi.c
@@ -503,7 +503,7 @@ static int __exit mpc52xx_psc_spi_of_remove(struct of_device *op)
return mpc52xx_psc_spi_do_remove(&op->dev);
}
-static struct of_device_id mpc52xx_psc_spi_of_match[] = {
+static const struct of_device_id mpc52xx_psc_spi_of_match[] = {
{ .compatible = "fsl,mpc5200-psc-spi", },
{ .compatible = "mpc5200-psc-spi", }, /* old */
{}
diff --git a/drivers/spi/mpc52xx_spi.c b/drivers/spi/mpc52xx_spi.c
index 45bfe645817..6eab46537a0 100644
--- a/drivers/spi/mpc52xx_spi.c
+++ b/drivers/spi/mpc52xx_spi.c
@@ -550,7 +550,7 @@ static int __devexit mpc52xx_spi_remove(struct of_device *op)
return 0;
}
-static struct of_device_id mpc52xx_spi_match[] __devinitdata = {
+static const struct of_device_id mpc52xx_spi_match[] __devinitconst = {
{ .compatible = "fsl,mpc5200-spi", },
{}
};
diff --git a/drivers/spi/spi_imx.c b/drivers/spi/spi_imx.c
index 1893f1e96dc..0ddbbe45e83 100644
--- a/drivers/spi/spi_imx.c
+++ b/drivers/spi/spi_imx.c
@@ -469,7 +469,7 @@ static int spi_imx_setup(struct spi_device *spi)
struct spi_imx_data *spi_imx = spi_master_get_devdata(spi->master);
int gpio = spi_imx->chipselect[spi->chip_select];
- pr_debug("%s: mode %d, %u bpw, %d hz\n", __func__,
+ dev_dbg(&spi->dev, "%s: mode %d, %u bpw, %d hz\n", __func__,
spi->mode, spi->bits_per_word, spi->max_speed_hz);
if (gpio >= 0)
diff --git a/drivers/spi/spi_mpc8xxx.c b/drivers/spi/spi_mpc8xxx.c
index 1fb2a6ea328..4f0cc9d457e 100644
--- a/drivers/spi/spi_mpc8xxx.c
+++ b/drivers/spi/spi_mpc8xxx.c
@@ -365,7 +365,7 @@ int mpc8xxx_spi_setup_transfer(struct spi_device *spi, struct spi_transfer *t)
if ((mpc8xxx_spi->spibrg / hz) > 64) {
cs->hw_mode |= SPMODE_DIV16;
- pm = mpc8xxx_spi->spibrg / (hz * 64);
+ pm = (mpc8xxx_spi->spibrg - 1) / (hz * 64) + 1;
WARN_ONCE(pm > 16, "%s: Requested speed is too low: %d Hz. "
"Will use %d Hz instead.\n", dev_name(&spi->dev),
@@ -373,7 +373,7 @@ int mpc8xxx_spi_setup_transfer(struct spi_device *spi, struct spi_transfer *t)
if (pm > 16)
pm = 16;
} else
- pm = mpc8xxx_spi->spibrg / (hz * 4);
+ pm = (mpc8xxx_spi->spibrg - 1) / (hz * 4) + 1;
if (pm)
pm--;
@@ -1328,7 +1328,7 @@ static struct of_platform_driver of_mpc8xxx_spi_driver = {
static int __devinit plat_mpc8xxx_spi_probe(struct platform_device *pdev)
{
struct resource *mem;
- unsigned int irq;
+ int irq;
struct spi_master *master;
if (!pdev->dev.platform_data)
@@ -1339,7 +1339,7 @@ static int __devinit plat_mpc8xxx_spi_probe(struct platform_device *pdev)
return -EINVAL;
irq = platform_get_irq(pdev, 0);
- if (!irq)
+ if (irq <= 0)
return -EINVAL;
master = mpc8xxx_spi_probe(&pdev->dev, mem, irq);
diff --git a/drivers/spi/spi_ppc4xx.c b/drivers/spi/spi_ppc4xx.c
index 140a18d6cf3..6d8d4026a07 100644
--- a/drivers/spi/spi_ppc4xx.c
+++ b/drivers/spi/spi_ppc4xx.c
@@ -578,7 +578,7 @@ static int __exit spi_ppc4xx_of_remove(struct of_device *op)
return 0;
}
-static struct of_device_id spi_ppc4xx_of_match[] = {
+static const struct of_device_id spi_ppc4xx_of_match[] = {
{ .compatible = "ibm,ppc4xx-spi", },
{},
};
diff --git a/drivers/spi/spi_s3c64xx.c b/drivers/spi/spi_s3c64xx.c
index 88a456dba96..97365815a72 100644
--- a/drivers/spi/spi_s3c64xx.c
+++ b/drivers/spi/spi_s3c64xx.c
@@ -28,7 +28,7 @@
#include <linux/spi/spi.h>
#include <mach/dma.h>
-#include <plat/spi.h>
+#include <plat/s3c64xx-spi.h>
/* Registers and bit-fields */
@@ -137,6 +137,7 @@
/**
* struct s3c64xx_spi_driver_data - Runtime info holder for SPI driver.
* @clk: Pointer to the spi clock.
+ * @src_clk: Pointer to the clock used to generate SPI signals.
* @master: Pointer to the SPI Protocol master.
* @workqueue: Work queue for the SPI xfer requests.
* @cntrlr_info: Platform specific data for the controller this driver manages.
@@ -157,10 +158,11 @@
struct s3c64xx_spi_driver_data {
void __iomem *regs;
struct clk *clk;
+ struct clk *src_clk;
struct platform_device *pdev;
struct spi_master *master;
struct workqueue_struct *workqueue;
- struct s3c64xx_spi_cntrlr_info *cntrlr_info;
+ struct s3c64xx_spi_info *cntrlr_info;
struct spi_device *tgl_spi;
struct work_struct work;
struct list_head queue;
@@ -180,7 +182,7 @@ static struct s3c2410_dma_client s3c64xx_spi_dma_client = {
static void flush_fifo(struct s3c64xx_spi_driver_data *sdd)
{
- struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
+ struct s3c64xx_spi_info *sci = sdd->cntrlr_info;
void __iomem *regs = sdd->regs;
unsigned long loops;
u32 val;
@@ -225,7 +227,7 @@ static void enable_datapath(struct s3c64xx_spi_driver_data *sdd,
struct spi_device *spi,
struct spi_transfer *xfer, int dma_mode)
{
- struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
+ struct s3c64xx_spi_info *sci = sdd->cntrlr_info;
void __iomem *regs = sdd->regs;
u32 modecfg, chcfg;
@@ -298,19 +300,20 @@ static inline void enable_cs(struct s3c64xx_spi_driver_data *sdd,
if (sdd->tgl_spi != spi) { /* if last mssg on diff device */
/* Deselect the last toggled device */
cs = sdd->tgl_spi->controller_data;
- cs->set_level(spi->mode & SPI_CS_HIGH ? 0 : 1);
+ cs->set_level(cs->line,
+ spi->mode & SPI_CS_HIGH ? 0 : 1);
}
sdd->tgl_spi = NULL;
}
cs = spi->controller_data;
- cs->set_level(spi->mode & SPI_CS_HIGH ? 1 : 0);
+ cs->set_level(cs->line, spi->mode & SPI_CS_HIGH ? 1 : 0);
}
static int wait_for_xfer(struct s3c64xx_spi_driver_data *sdd,
struct spi_transfer *xfer, int dma_mode)
{
- struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
+ struct s3c64xx_spi_info *sci = sdd->cntrlr_info;
void __iomem *regs = sdd->regs;
unsigned long val;
int ms;
@@ -384,12 +387,11 @@ static inline void disable_cs(struct s3c64xx_spi_driver_data *sdd,
if (sdd->tgl_spi == spi)
sdd->tgl_spi = NULL;
- cs->set_level(spi->mode & SPI_CS_HIGH ? 0 : 1);
+ cs->set_level(cs->line, spi->mode & SPI_CS_HIGH ? 0 : 1);
}
static void s3c64xx_spi_config(struct s3c64xx_spi_driver_data *sdd)
{
- struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
void __iomem *regs = sdd->regs;
u32 val;
@@ -435,7 +437,7 @@ static void s3c64xx_spi_config(struct s3c64xx_spi_driver_data *sdd)
/* Configure Clock */
val = readl(regs + S3C64XX_SPI_CLK_CFG);
val &= ~S3C64XX_SPI_PSR_MASK;
- val |= ((clk_get_rate(sci->src_clk) / sdd->cur_speed / 2 - 1)
+ val |= ((clk_get_rate(sdd->src_clk) / sdd->cur_speed / 2 - 1)
& S3C64XX_SPI_PSR_MASK);
writel(val, regs + S3C64XX_SPI_CLK_CFG);
@@ -558,7 +560,7 @@ static void s3c64xx_spi_unmap_mssg(struct s3c64xx_spi_driver_data *sdd,
static void handle_msg(struct s3c64xx_spi_driver_data *sdd,
struct spi_message *msg)
{
- struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
+ struct s3c64xx_spi_info *sci = sdd->cntrlr_info;
struct spi_device *spi = msg->spi;
struct s3c64xx_spi_csinfo *cs = spi->controller_data;
struct spi_transfer *xfer;
@@ -632,8 +634,8 @@ static void handle_msg(struct s3c64xx_spi_driver_data *sdd,
S3C64XX_SPI_DEACT(sdd);
if (status) {
- dev_err(&spi->dev, "I/O Error: \
- rx-%d tx-%d res:rx-%c tx-%c len-%d\n",
+ dev_err(&spi->dev, "I/O Error: "
+ "rx-%d tx-%d res:rx-%c tx-%c len-%d\n",
xfer->rx_buf ? 1 : 0, xfer->tx_buf ? 1 : 0,
(sdd->state & RXBUSY) ? 'f' : 'p',
(sdd->state & TXBUSY) ? 'f' : 'p',
@@ -786,7 +788,7 @@ static int s3c64xx_spi_setup(struct spi_device *spi)
{
struct s3c64xx_spi_csinfo *cs = spi->controller_data;
struct s3c64xx_spi_driver_data *sdd;
- struct s3c64xx_spi_cntrlr_info *sci;
+ struct s3c64xx_spi_info *sci;
struct spi_message *msg;
u32 psr, speed;
unsigned long flags;
@@ -831,17 +833,17 @@ static int s3c64xx_spi_setup(struct spi_device *spi)
}
/* Check if we can provide the requested rate */
- speed = clk_get_rate(sci->src_clk) / 2 / (0 + 1); /* Max possible */
+ speed = clk_get_rate(sdd->src_clk) / 2 / (0 + 1); /* Max possible */
if (spi->max_speed_hz > speed)
spi->max_speed_hz = speed;
- psr = clk_get_rate(sci->src_clk) / 2 / spi->max_speed_hz - 1;
+ psr = clk_get_rate(sdd->src_clk) / 2 / spi->max_speed_hz - 1;
psr &= S3C64XX_SPI_PSR_MASK;
if (psr == S3C64XX_SPI_PSR_MASK)
psr--;
- speed = clk_get_rate(sci->src_clk) / 2 / (psr + 1);
+ speed = clk_get_rate(sdd->src_clk) / 2 / (psr + 1);
if (spi->max_speed_hz < speed) {
if (psr+1 < S3C64XX_SPI_PSR_MASK) {
psr++;
@@ -851,7 +853,7 @@ static int s3c64xx_spi_setup(struct spi_device *spi)
}
}
- speed = clk_get_rate(sci->src_clk) / 2 / (psr + 1);
+ speed = clk_get_rate(sdd->src_clk) / 2 / (psr + 1);
if (spi->max_speed_hz >= speed)
spi->max_speed_hz = speed;
else
@@ -867,7 +869,7 @@ setup_exit:
static void s3c64xx_spi_hwinit(struct s3c64xx_spi_driver_data *sdd, int channel)
{
- struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
+ struct s3c64xx_spi_info *sci = sdd->cntrlr_info;
void __iomem *regs = sdd->regs;
unsigned int val;
@@ -902,7 +904,7 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev)
{
struct resource *mem_res, *dmatx_res, *dmarx_res;
struct s3c64xx_spi_driver_data *sdd;
- struct s3c64xx_spi_cntrlr_info *sci;
+ struct s3c64xx_spi_info *sci;
struct spi_master *master;
int ret;
@@ -1000,18 +1002,15 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev)
goto err4;
}
- if (sci->src_clk_nr == S3C64XX_SPI_SRCCLK_PCLK)
- sci->src_clk = sdd->clk;
- else
- sci->src_clk = clk_get(&pdev->dev, sci->src_clk_name);
- if (IS_ERR(sci->src_clk)) {
+ sdd->src_clk = clk_get(&pdev->dev, sci->src_clk_name);
+ if (IS_ERR(sdd->src_clk)) {
dev_err(&pdev->dev,
"Unable to acquire clock '%s'\n", sci->src_clk_name);
- ret = PTR_ERR(sci->src_clk);
+ ret = PTR_ERR(sdd->src_clk);
goto err5;
}
- if (sci->src_clk != sdd->clk && clk_enable(sci->src_clk)) {
+ if (clk_enable(sdd->src_clk)) {
dev_err(&pdev->dev, "Couldn't enable clock '%s'\n",
sci->src_clk_name);
ret = -EBUSY;
@@ -1040,11 +1039,10 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev)
goto err8;
}
- dev_dbg(&pdev->dev, "Samsung SoC SPI Driver loaded for Bus SPI-%d \
- with %d Slaves attached\n",
+ dev_dbg(&pdev->dev, "Samsung SoC SPI Driver loaded for Bus SPI-%d "
+ "with %d Slaves attached\n",
pdev->id, master->num_chipselect);
- dev_dbg(&pdev->dev, "\tIOmem=[0x%x-0x%x]\
- \tDMA=[Rx-%d, Tx-%d]\n",
+ dev_dbg(&pdev->dev, "\tIOmem=[0x%x-0x%x]\tDMA=[Rx-%d, Tx-%d]\n",
mem_res->end, mem_res->start,
sdd->rx_dmach, sdd->tx_dmach);
@@ -1053,11 +1051,9 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev)
err8:
destroy_workqueue(sdd->workqueue);
err7:
- if (sci->src_clk != sdd->clk)
- clk_disable(sci->src_clk);
+ clk_disable(sdd->src_clk);
err6:
- if (sci->src_clk != sdd->clk)
- clk_put(sci->src_clk);
+ clk_put(sdd->src_clk);
err5:
clk_disable(sdd->clk);
err4:
@@ -1078,7 +1074,6 @@ static int s3c64xx_spi_remove(struct platform_device *pdev)
{
struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
- struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
struct resource *mem_res;
unsigned long flags;
@@ -1093,11 +1088,8 @@ static int s3c64xx_spi_remove(struct platform_device *pdev)
destroy_workqueue(sdd->workqueue);
- if (sci->src_clk != sdd->clk)
- clk_disable(sci->src_clk);
-
- if (sci->src_clk != sdd->clk)
- clk_put(sci->src_clk);
+ clk_disable(sdd->src_clk);
+ clk_put(sdd->src_clk);
clk_disable(sdd->clk);
clk_put(sdd->clk);
@@ -1105,7 +1097,8 @@ static int s3c64xx_spi_remove(struct platform_device *pdev)
iounmap((void *) sdd->regs);
mem_res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- release_mem_region(mem_res->start, resource_size(mem_res));
+ if (mem_res != NULL)
+ release_mem_region(mem_res->start, resource_size(mem_res));
platform_set_drvdata(pdev, NULL);
spi_master_put(master);
@@ -1118,8 +1111,6 @@ static int s3c64xx_spi_suspend(struct platform_device *pdev, pm_message_t state)
{
struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
- struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
- struct s3c64xx_spi_csinfo *cs;
unsigned long flags;
spin_lock_irqsave(&sdd->lock, flags);
@@ -1130,9 +1121,7 @@ static int s3c64xx_spi_suspend(struct platform_device *pdev, pm_message_t state)
msleep(10);
/* Disable the clock */
- if (sci->src_clk != sdd->clk)
- clk_disable(sci->src_clk);
-
+ clk_disable(sdd->src_clk);
clk_disable(sdd->clk);
sdd->cur_speed = 0; /* Output Clock is stopped */
@@ -1144,15 +1133,13 @@ static int s3c64xx_spi_resume(struct platform_device *pdev)
{
struct spi_master *master = spi_master_get(platform_get_drvdata(pdev));
struct s3c64xx_spi_driver_data *sdd = spi_master_get_devdata(master);
- struct s3c64xx_spi_cntrlr_info *sci = sdd->cntrlr_info;
+ struct s3c64xx_spi_info *sci = sdd->cntrlr_info;
unsigned long flags;
sci->cfg_gpio(pdev);
/* Enable the clock */
- if (sci->src_clk != sdd->clk)
- clk_enable(sci->src_clk);
-
+ clk_enable(sdd->src_clk);
clk_enable(sdd->clk);
s3c64xx_spi_hwinit(sdd, pdev->id);
diff --git a/drivers/spi/spi_sh_msiof.c b/drivers/spi/spi_sh_msiof.c
index 30973ec16a9..d93b66743ba 100644
--- a/drivers/spi/spi_sh_msiof.c
+++ b/drivers/spi/spi_sh_msiof.c
@@ -20,12 +20,12 @@
#include <linux/bitmap.h>
#include <linux/clk.h>
#include <linux/io.h>
+#include <linux/err.h>
#include <linux/spi/spi.h>
#include <linux/spi/spi_bitbang.h>
#include <linux/spi/sh_msiof.h>
-#include <asm/spi.h>
#include <asm/unaligned.h>
struct sh_msiof_spi_priv {
diff --git a/drivers/spi/spi_stmp.c b/drivers/spi/spi_stmp.c
index 2552bb36400..fadff76eb7e 100644
--- a/drivers/spi/spi_stmp.c
+++ b/drivers/spi/spi_stmp.c
@@ -76,7 +76,7 @@ struct stmp_spi {
break; \
} \
cpu_relax(); \
- } while (time_before(end_jiffies, jiffies)); \
+ } while (time_before(jiffies, end_jiffies)); \
succeeded; \
})
diff --git a/drivers/spi/xilinx_spi.c b/drivers/spi/xilinx_spi.c
index 9f386379c16..1b47363cb73 100644
--- a/drivers/spi/xilinx_spi.c
+++ b/drivers/spi/xilinx_spi.c
@@ -93,6 +93,26 @@ struct xilinx_spi {
void (*rx_fn) (struct xilinx_spi *);
};
+static void xspi_write32(u32 val, void __iomem *addr)
+{
+ iowrite32(val, addr);
+}
+
+static unsigned int xspi_read32(void __iomem *addr)
+{
+ return ioread32(addr);
+}
+
+static void xspi_write32_be(u32 val, void __iomem *addr)
+{
+ iowrite32be(val, addr);
+}
+
+static unsigned int xspi_read32_be(void __iomem *addr)
+{
+ return ioread32be(addr);
+}
+
static void xspi_tx8(struct xilinx_spi *xspi)
{
xspi->write_fn(*xspi->tx_ptr, xspi->regs + XSPI_TXD_OFFSET);
@@ -374,11 +394,11 @@ struct spi_master *xilinx_spi_init(struct device *dev, struct resource *mem,
xspi->mem = *mem;
xspi->irq = irq;
if (pdata->little_endian) {
- xspi->read_fn = ioread32;
- xspi->write_fn = iowrite32;
+ xspi->read_fn = xspi_read32;
+ xspi->write_fn = xspi_write32;
} else {
- xspi->read_fn = ioread32be;
- xspi->write_fn = iowrite32be;
+ xspi->read_fn = xspi_read32_be;
+ xspi->write_fn = xspi_write32_be;
}
xspi->bits_per_word = pdata->bits_per_word;
if (xspi->bits_per_word == 8) {
diff --git a/drivers/spi/xilinx_spi_of.c b/drivers/spi/xilinx_spi_of.c
index 71dc3adc049..ed34a8d419c 100644
--- a/drivers/spi/xilinx_spi_of.c
+++ b/drivers/spi/xilinx_spi_of.c
@@ -99,7 +99,7 @@ static int __exit xilinx_spi_of_remove(struct of_device *op)
return xilinx_spi_remove(op);
}
-static struct of_device_id xilinx_spi_of_match[] = {
+static const struct of_device_id xilinx_spi_of_match[] = {
{ .compatible = "xlnx,xps-spi-2.00.a", },
{ .compatible = "xlnx,xps-spi-2.00.b", },
{}
diff --git a/drivers/ssb/main.c b/drivers/ssb/main.c
index 5681ebed9c6..03dfd27c4bf 100644
--- a/drivers/ssb/main.c
+++ b/drivers/ssb/main.c
@@ -494,8 +494,7 @@ static int ssb_devices_register(struct ssb_bus *bus)
#endif
break;
case SSB_BUSTYPE_SDIO:
-#ifdef CONFIG_SSB_SDIO
- sdev->irq = bus->host_sdio->dev.irq;
+#ifdef CONFIG_SSB_SDIOHOST
dev->parent = &bus->host_sdio->dev;
#endif
break;
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index 6e8bcdfd23b..a678186f218 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -1312,9 +1312,9 @@ static int processcompl(struct async *as, void __user * __user *arg)
void __user *addr = as->userurb;
unsigned int i;
- if (as->userbuffer)
+ if (as->userbuffer && urb->actual_length)
if (copy_to_user(as->userbuffer, urb->transfer_buffer,
- urb->transfer_buffer_length))
+ urb->actual_length))
goto err_out;
if (put_user(as->status, &userurb->status))
goto err_out;
@@ -1334,14 +1334,11 @@ static int processcompl(struct async *as, void __user * __user *arg)
}
}
- free_async(as);
-
if (put_user(addr, (void __user * __user *)arg))
return -EFAULT;
return 0;
err_out:
- free_async(as);
return -EFAULT;
}
@@ -1371,8 +1368,11 @@ static struct async *reap_as(struct dev_state *ps)
static int proc_reapurb(struct dev_state *ps, void __user *arg)
{
struct async *as = reap_as(ps);
- if (as)
- return processcompl(as, (void __user * __user *)arg);
+ if (as) {
+ int retval = processcompl(as, (void __user * __user *)arg);
+ free_async(as);
+ return retval;
+ }
if (signal_pending(current))
return -EINTR;
return -EIO;
@@ -1380,11 +1380,16 @@ static int proc_reapurb(struct dev_state *ps, void __user *arg)
static int proc_reapurbnonblock(struct dev_state *ps, void __user *arg)
{
+ int retval;
struct async *as;
- if (!(as = async_getcompleted(ps)))
- return -EAGAIN;
- return processcompl(as, (void __user * __user *)arg);
+ as = async_getcompleted(ps);
+ retval = -EAGAIN;
+ if (as) {
+ retval = processcompl(as, (void __user * __user *)arg);
+ free_async(as);
+ }
+ return retval;
}
#ifdef CONFIG_COMPAT
@@ -1475,9 +1480,9 @@ static int processcompl_compat(struct async *as, void __user * __user *arg)
void __user *addr = as->userurb;
unsigned int i;
- if (as->userbuffer)
+ if (as->userbuffer && urb->actual_length)
if (copy_to_user(as->userbuffer, urb->transfer_buffer,
- urb->transfer_buffer_length))
+ urb->actual_length))
return -EFAULT;
if (put_user(as->status, &userurb->status))
return -EFAULT;
@@ -1497,7 +1502,6 @@ static int processcompl_compat(struct async *as, void __user * __user *arg)
}
}
- free_async(as);
if (put_user(ptr_to_compat(addr), (u32 __user *)arg))
return -EFAULT;
return 0;
@@ -1506,8 +1510,11 @@ static int processcompl_compat(struct async *as, void __user * __user *arg)
static int proc_reapurb_compat(struct dev_state *ps, void __user *arg)
{
struct async *as = reap_as(ps);
- if (as)
- return processcompl_compat(as, (void __user * __user *)arg);
+ if (as) {
+ int retval = processcompl_compat(as, (void __user * __user *)arg);
+ free_async(as);
+ return retval;
+ }
if (signal_pending(current))
return -EINTR;
return -EIO;
@@ -1515,11 +1522,16 @@ static int proc_reapurb_compat(struct dev_state *ps, void __user *arg)
static int proc_reapurbnonblock_compat(struct dev_state *ps, void __user *arg)
{
+ int retval;
struct async *as;
- if (!(as = async_getcompleted(ps)))
- return -EAGAIN;
- return processcompl_compat(as, (void __user * __user *)arg);
+ retval = -EAGAIN;
+ as = async_getcompleted(ps);
+ if (as) {
+ retval = processcompl_compat(as, (void __user * __user *)arg);
+ free_async(as);
+ }
+ return retval;
}
diff --git a/drivers/usb/gadget/f_eem.c b/drivers/usb/gadget/f_eem.c
index 0a577d5694f..d4f0db58a8a 100644
--- a/drivers/usb/gadget/f_eem.c
+++ b/drivers/usb/gadget/f_eem.c
@@ -358,7 +358,7 @@ done:
* b15: bmType (0 == data)
*/
len = skb->len;
- put_unaligned_le16((len & 0x3FFF) | BIT(14), skb_push(skb, 2));
+ put_unaligned_le16(len & 0x3FFF, skb_push(skb, 2));
/* add a zero-length EEM packet, if needed */
if (padlen)
@@ -464,7 +464,6 @@ static int eem_unwrap(struct gether *port,
}
/* validate CRC */
- crc = get_unaligned_le32(skb->data + len - ETH_FCS_LEN);
if (header & BIT(14)) {
crc = get_unaligned_le32(skb->data + len
- ETH_FCS_LEN);
diff --git a/drivers/usb/gadget/multi.c b/drivers/usb/gadget/multi.c
index 429560100b1..76496f5d272 100644
--- a/drivers/usb/gadget/multi.c
+++ b/drivers/usb/gadget/multi.c
@@ -29,7 +29,7 @@
#if defined USB_ETH_RNDIS
# undef USB_ETH_RNDIS
#endif
-#ifdef CONFIG_USB_ETH_RNDIS
+#ifdef CONFIG_USB_G_MULTI_RNDIS
# define USB_ETH_RNDIS y
#endif
diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c
index e220fb8091a..8b45145b913 100644
--- a/drivers/usb/gadget/r8a66597-udc.c
+++ b/drivers/usb/gadget/r8a66597-udc.c
@@ -26,6 +26,7 @@
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/clk.h>
+#include <linux/err.h>
#include <linux/usb/ch9.h>
#include <linux/usb/gadget.h>
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index 4b5dbd0127f..5fc80a10415 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -2582,6 +2582,7 @@ err:
hsotg->gadget.dev.driver = NULL;
return ret;
}
+EXPORT_SYMBOL(usb_gadget_register_driver);
int usb_gadget_unregister_driver(struct usb_gadget_driver *driver)
{
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index c75d9270c75..19372673bf0 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/drivers/usb/host/ehci-hub.c
@@ -196,7 +196,9 @@ static int ehci_bus_suspend (struct usb_hcd *hcd)
if (hostpc_reg) {
u32 t3;
+ spin_unlock_irq(&ehci->lock);
msleep(5);/* 5ms for HCD enter low pwr mode */
+ spin_lock_irq(&ehci->lock);
t3 = ehci_readl(ehci, hostpc_reg);
ehci_writel(ehci, t3 | HOSTPC_PHCD, hostpc_reg);
t3 = ehci_readl(ehci, hostpc_reg);
@@ -904,17 +906,18 @@ static int ehci_hub_control (
if ((temp & PORT_PE) == 0
|| (temp & PORT_RESET) != 0)
goto error;
- ehci_writel(ehci, temp | PORT_SUSPEND, status_reg);
+
/* After above check the port must be connected.
* Set appropriate bit thus could put phy into low power
* mode if we have hostpc feature
*/
+ temp &= ~PORT_WKCONN_E;
+ temp |= PORT_WKDISC_E | PORT_WKOC_E;
+ ehci_writel(ehci, temp | PORT_SUSPEND, status_reg);
if (hostpc_reg) {
- temp &= ~PORT_WKCONN_E;
- temp |= (PORT_WKDISC_E | PORT_WKOC_E);
- ehci_writel(ehci, temp | PORT_SUSPEND,
- status_reg);
+ spin_unlock_irqrestore(&ehci->lock, flags);
msleep(5);/* 5ms for HCD enter low pwr mode */
+ spin_lock_irqsave(&ehci->lock, flags);
temp1 = ehci_readl(ehci, hostpc_reg);
ehci_writel(ehci, temp1 | HOSTPC_PHCD,
hostpc_reg);
diff --git a/drivers/usb/host/fhci-tds.c b/drivers/usb/host/fhci-tds.c
index d224ab467a4..e1232890c78 100644
--- a/drivers/usb/host/fhci-tds.c
+++ b/drivers/usb/host/fhci-tds.c
@@ -105,7 +105,7 @@ void fhci_ep0_free(struct fhci_usb *usb)
if (ep->td_base)
cpm_muram_free(cpm_muram_offset(ep->td_base));
- if (ep->conf_frame_Q) {
+ if (kfifo_initialized(&ep->conf_frame_Q)) {
size = cq_howmany(&ep->conf_frame_Q);
for (; size; size--) {
struct packet *pkt = cq_get(&ep->conf_frame_Q);
@@ -115,7 +115,7 @@ void fhci_ep0_free(struct fhci_usb *usb)
cq_delete(&ep->conf_frame_Q);
}
- if (ep->empty_frame_Q) {
+ if (kfifo_initialized(&ep->empty_frame_Q)) {
size = cq_howmany(&ep->empty_frame_Q);
for (; size; size--) {
struct packet *pkt = cq_get(&ep->empty_frame_Q);
@@ -125,7 +125,7 @@ void fhci_ep0_free(struct fhci_usb *usb)
cq_delete(&ep->empty_frame_Q);
}
- if (ep->dummy_packets_Q) {
+ if (kfifo_initialized(&ep->dummy_packets_Q)) {
size = cq_howmany(&ep->dummy_packets_Q);
for (; size; size--) {
u8 *buff = cq_get(&ep->dummy_packets_Q);
diff --git a/drivers/usb/misc/sisusbvga/sisusb.c b/drivers/usb/misc/sisusbvga/sisusb.c
index 0025847743f..8b37a4b9839 100644
--- a/drivers/usb/misc/sisusbvga/sisusb.c
+++ b/drivers/usb/misc/sisusbvga/sisusb.c
@@ -3245,6 +3245,7 @@ static struct usb_device_id sisusb_table [] = {
{ USB_DEVICE(0x0711, 0x0902) },
{ USB_DEVICE(0x0711, 0x0903) },
{ USB_DEVICE(0x0711, 0x0918) },
+ { USB_DEVICE(0x0711, 0x0920) },
{ USB_DEVICE(0x182d, 0x021c) },
{ USB_DEVICE(0x182d, 0x0269) },
{ }
diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig
index de56b3d743d..3d2d3e549bd 100644
--- a/drivers/usb/otg/Kconfig
+++ b/drivers/usb/otg/Kconfig
@@ -44,6 +44,7 @@ config ISP1301_OMAP
config USB_ULPI
bool "Generic ULPI Transceiver Driver"
depends on ARM
+ select USB_OTG_UTILS
help
Enable this to support ULPI connected USB OTG transceivers which
are likely found on embedded boards.
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 216f187582a..7638828e731 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -50,7 +50,7 @@
* Version Information
*/
#define DRIVER_VERSION "v1.5.0"
-#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>"
+#define DRIVER_AUTHOR "Greg Kroah-Hartman <greg@kroah.com>, Bill Ryder <bryder@sgi.com>, Kuba Ober <kuba@mareimbrium.org>, Andreas Mohr"
#define DRIVER_DESC "USB FTDI Serial Converters Driver"
static int debug;
@@ -145,10 +145,15 @@ static struct ftdi_sio_quirk ftdi_HE_TIRA1_quirk = {
+/*
+ * Device ID not listed? Test via module params product/vendor or
+ * /sys/bus/usb/ftdi_sio/new_id, then send patch/report!
+ */
static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(FTDI_VID, FTDI_AMC232_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_CANUSB_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_CANDAPTER_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_NXTCAM_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_0_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_1_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_SCS_DEVICE_2_PID) },
@@ -552,9 +557,16 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(FTDI_VID, FTDI_IBS_PEDO_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_IBS_PROD_PID) },
/*
- * Due to many user requests for multiple ELV devices we enable
- * them by default.
+ * ELV devices:
*/
+ { USB_DEVICE(FTDI_VID, FTDI_ELV_USR_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_ELV_MSM1_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_ELV_KL100_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_ELV_WS550_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_ELV_EC3000_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_ELV_WS888_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_ELV_TWS550_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_ELV_FEM_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_ELV_CLI7000_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_ELV_PPS7330_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_ELV_TFM100_PID) },
@@ -571,11 +583,17 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(FTDI_VID, FTDI_ELV_PCK100_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_ELV_RFP500_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_ELV_FS20SIG_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_ELV_UTP8_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS300PC_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_ELV_WS444PC_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_ELV_FHZ1300PC_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_ELV_EM1010PC_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_ELV_WS500_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_ELV_HS485_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_ELV_UMS100_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_ELV_TFD128_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_ELV_FM3RX_PID) },
+ { USB_DEVICE(FTDI_VID, FTDI_ELV_WS777_PID) },
{ USB_DEVICE(FTDI_VID, LINX_SDMUSBQSS_PID) },
{ USB_DEVICE(FTDI_VID, LINX_MASTERDEVEL2_PID) },
{ USB_DEVICE(FTDI_VID, LINX_FUTURE_0_PID) },
@@ -697,6 +715,7 @@ static struct usb_device_id id_table_combined [] = {
{ USB_DEVICE(RATOC_VENDOR_ID, RATOC_PRODUCT_ID_USB60F) },
{ USB_DEVICE(FTDI_VID, FTDI_REU_TINY_PID) },
{ USB_DEVICE(PAPOUCH_VID, PAPOUCH_QUIDO4x4_PID) },
+ { USB_DEVICE(PAPOUCH_VID, PAPOUCH_AD4USB_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DGQG_PID) },
{ USB_DEVICE(FTDI_VID, FTDI_DOMINTELL_DUSB_PID) },
{ USB_DEVICE(ALTI2_VID, ALTI2_N3_PID) },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index da92b4952ff..c8951aeed98 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -38,6 +38,8 @@
/* www.candapter.com Ewert Energy Systems CANdapter device */
#define FTDI_CANDAPTER_PID 0x9F80 /* Product Id */
+#define FTDI_NXTCAM_PID 0xABB8 /* NXTCam for Mindstorms NXT */
+
/* OOCDlink by Joern Kaipf <joernk@web.de>
* (http://www.joernonline.de/dw/doku.php?id=start&idx=projects:oocdlink) */
#define FTDI_OOCDLINK_PID 0xbaf8 /* Amontec JTAGkey */
@@ -161,22 +163,37 @@
/*
* ELV USB devices submitted by Christian Abt of ELV (www.elv.de).
* All of these devices use FTDI's vendor ID (0x0403).
+ * Further IDs taken from ELV Windows .inf file.
*
* The previously included PID for the UO 100 module was incorrect.
* In fact, that PID was for ELV's UR 100 USB-RS232 converter (0xFB58).
*
* Armin Laeuger originally sent the PID for the UM 100 module.
*/
+#define FTDI_ELV_USR_PID 0xE000 /* ELV Universal-Sound-Recorder */
+#define FTDI_ELV_MSM1_PID 0xE001 /* ELV Mini-Sound-Modul */
+#define FTDI_ELV_KL100_PID 0xE002 /* ELV Kfz-Leistungsmesser KL 100 */
+#define FTDI_ELV_WS550_PID 0xE004 /* WS 550 */
+#define FTDI_ELV_EC3000_PID 0xE006 /* ENERGY CONTROL 3000 USB */
+#define FTDI_ELV_WS888_PID 0xE008 /* WS 888 */
+#define FTDI_ELV_TWS550_PID 0xE009 /* Technoline WS 550 */
+#define FTDI_ELV_FEM_PID 0xE00A /* Funk Energie Monitor */
#define FTDI_ELV_FHZ1300PC_PID 0xE0E8 /* FHZ 1300 PC */
#define FTDI_ELV_WS500_PID 0xE0E9 /* PC-Wetterstation (WS 500) */
#define FTDI_ELV_HS485_PID 0xE0EA /* USB to RS-485 adapter */
+#define FTDI_ELV_UMS100_PID 0xE0EB /* ELV USB Master-Slave Schaltsteckdose UMS 100 */
+#define FTDI_ELV_TFD128_PID 0xE0EC /* ELV Temperatur-Feuchte-Datenlogger TFD 128 */
+#define FTDI_ELV_FM3RX_PID 0xE0ED /* ELV Messwertuebertragung FM3 RX */
+#define FTDI_ELV_WS777_PID 0xE0EE /* Conrad WS 777 */
#define FTDI_ELV_EM1010PC_PID 0xE0EF /* Engery monitor EM 1010 PC */
#define FTDI_ELV_CSI8_PID 0xE0F0 /* Computer-Schalt-Interface (CSI 8) */
#define FTDI_ELV_EM1000DL_PID 0xE0F1 /* PC-Datenlogger fuer Energiemonitor (EM 1000 DL) */
#define FTDI_ELV_PCK100_PID 0xE0F2 /* PC-Kabeltester (PCK 100) */
#define FTDI_ELV_RFP500_PID 0xE0F3 /* HF-Leistungsmesser (RFP 500) */
#define FTDI_ELV_FS20SIG_PID 0xE0F4 /* Signalgeber (FS 20 SIG) */
+#define FTDI_ELV_UTP8_PID 0xE0F5 /* ELV UTP 8 */
#define FTDI_ELV_WS300PC_PID 0xE0F6 /* PC-Wetterstation (WS 300 PC) */
+#define FTDI_ELV_WS444PC_PID 0xE0F7 /* Conrad WS 444 PC */
#define FTDI_PHI_FISCO_PID 0xE40B /* PHI Fisco USB to Serial cable */
#define FTDI_ELV_UAD8_PID 0xF068 /* USB-AD-Wandler (UAD 8) */
#define FTDI_ELV_UDA7_PID 0xF069 /* USB-DA-Wandler (UDA 7) */
@@ -968,6 +985,7 @@
#define PAPOUCH_VID 0x5050 /* Vendor ID */
#define PAPOUCH_TMU_PID 0x0400 /* TMU USB Thermometer */
#define PAPOUCH_QUIDO4x4_PID 0x0900 /* Quido 4/4 Module */
+#define PAPOUCH_AD4USB_PID 0x8003 /* AD4USB Measurement Module */
/*
* Marvell SheevaPlug
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index ac1b6449fb6..3eb6143bb64 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -298,6 +298,7 @@ static struct usb_device_id id_table [] = {
{ USB_DEVICE(0x1199, 0x68A3), /* Sierra Wireless Direct IP modems */
.driver_info = (kernel_ulong_t)&direct_ip_interface_blacklist
},
+ { USB_DEVICE(0x413C, 0x08133) }, /* Dell Computer Corp. Wireless 5720 VZW Mobile Broadband (EVDO Rev-A) Minicard GPS Port */
{ }
};
diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h
index c932f905318..49575fba375 100644
--- a/drivers/usb/storage/unusual_devs.h
+++ b/drivers/usb/storage/unusual_devs.h
@@ -941,7 +941,7 @@ UNUSUAL_DEV( 0x07ab, 0xfccd, 0x0000, 0x9999,
UNUSUAL_DEV( 0x07af, 0x0004, 0x0100, 0x0133,
"Microtech",
"USB-SCSI-DB25",
- US_SC_SCSI, US_PR_BULK, usb_stor_euscsi_init,
+ US_SC_DEVICE, US_PR_DEVICE, usb_stor_euscsi_init,
US_FL_SCM_MULT_TARG ),
UNUSUAL_DEV( 0x07af, 0x0005, 0x0100, 0x0100,
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index e4e4d433b00..9ee67d6da71 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -1931,22 +1931,22 @@ static int __devinit aty128_init(struct pci_dev *pdev, const struct pci_device_i
* PowerMac2,2 summer 2000 iMacs
* PowerMac4,1 january 2001 iMacs "flower power"
*/
- if (machine_is_compatible("PowerMac2,1") ||
- machine_is_compatible("PowerMac2,2") ||
- machine_is_compatible("PowerMac4,1"))
+ if (of_machine_is_compatible("PowerMac2,1") ||
+ of_machine_is_compatible("PowerMac2,2") ||
+ of_machine_is_compatible("PowerMac4,1"))
default_vmode = VMODE_1024_768_75;
/* iBook SE */
- if (machine_is_compatible("PowerBook2,2"))
+ if (of_machine_is_compatible("PowerBook2,2"))
default_vmode = VMODE_800_600_60;
/* PowerBook Firewire (Pismo), iBook Dual USB */
- if (machine_is_compatible("PowerBook3,1") ||
- machine_is_compatible("PowerBook4,1"))
+ if (of_machine_is_compatible("PowerBook3,1") ||
+ of_machine_is_compatible("PowerBook4,1"))
default_vmode = VMODE_1024_768_60;
/* PowerBook Titanium */
- if (machine_is_compatible("PowerBook3,2"))
+ if (of_machine_is_compatible("PowerBook3,2"))
default_vmode = VMODE_1152_768_60;
if (default_cmode > 16)
diff --git a/drivers/video/aty/atyfb_base.c b/drivers/video/aty/atyfb_base.c
index 1ddeb4c3476..e45ab8db2dd 100644
--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -2439,7 +2439,7 @@ static int __devinit aty_init(struct fb_info *info)
* The Apple iBook1 uses non-standard memory frequencies.
* We detect it and set the frequency manually.
*/
- if (machine_is_compatible("PowerBook2,1")) {
+ if (of_machine_is_compatible("PowerBook2,1")) {
par->pll_limits.mclk = 70;
par->pll_limits.xclk = 53;
}
@@ -2659,7 +2659,7 @@ static int __devinit aty_init(struct fb_info *info)
FBINFO_HWACCEL_YPAN;
#ifdef CONFIG_PMAC_BACKLIGHT
- if (M64_HAS(G3_PB_1_1) && machine_is_compatible("PowerBook1,1")) {
+ if (M64_HAS(G3_PB_1_1) && of_machine_is_compatible("PowerBook1,1")) {
/*
* these bits let the 101 powerbook
* wake up from sleep -- paulus
@@ -2690,9 +2690,9 @@ static int __devinit aty_init(struct fb_info *info)
if (M64_HAS(G3_PB_1024x768))
/* G3 PowerBook with 1024x768 LCD */
default_vmode = VMODE_1024_768_60;
- else if (machine_is_compatible("iMac"))
+ else if (of_machine_is_compatible("iMac"))
default_vmode = VMODE_1024_768_75;
- else if (machine_is_compatible("PowerBook2,1"))
+ else if (of_machine_is_compatible("PowerBook2,1"))
/* iBook with 800x600 LCD */
default_vmode = VMODE_800_600_60;
else
@@ -3104,7 +3104,7 @@ static int __devinit atyfb_setup_sparc(struct pci_dev *pdev,
}
dp = pci_device_to_OF_node(pdev);
- if (node == dp->node) {
+ if (node == dp->phandle) {
struct fb_var_screeninfo *var = &default_var;
unsigned int N, P, Q, M, T, R;
u32 v_total, h_total;
diff --git a/drivers/video/aty/radeon_backlight.c b/drivers/video/aty/radeon_backlight.c
index 1a056adb61c..fa1198c4ccc 100644
--- a/drivers/video/aty/radeon_backlight.c
+++ b/drivers/video/aty/radeon_backlight.c
@@ -175,9 +175,9 @@ void radeonfb_bl_init(struct radeonfb_info *rinfo)
#ifdef CONFIG_PMAC_BACKLIGHT
pdata->negative = pdata->negative ||
- machine_is_compatible("PowerBook4,3") ||
- machine_is_compatible("PowerBook6,3") ||
- machine_is_compatible("PowerBook6,5");
+ of_machine_is_compatible("PowerBook4,3") ||
+ of_machine_is_compatible("PowerBook6,3") ||
+ of_machine_is_compatible("PowerBook6,5");
#endif
rinfo->info->bl_dev = bd;
diff --git a/drivers/video/efifb.c b/drivers/video/efifb.c
index eb12182b205..d25df51bb0d 100644
--- a/drivers/video/efifb.c
+++ b/drivers/video/efifb.c
@@ -161,8 +161,17 @@ static int efifb_setcolreg(unsigned regno, unsigned red, unsigned green,
return 0;
}
+static void efifb_destroy(struct fb_info *info)
+{
+ if (info->screen_base)
+ iounmap(info->screen_base);
+ release_mem_region(info->aperture_base, info->aperture_size);
+ framebuffer_release(info);
+}
+
static struct fb_ops efifb_ops = {
.owner = THIS_MODULE,
+ .fb_destroy = efifb_destroy,
.fb_setcolreg = efifb_setcolreg,
.fb_fillrect = cfb_fillrect,
.fb_copyarea = cfb_copyarea,
@@ -281,7 +290,7 @@ static int __init efifb_probe(struct platform_device *dev)
info->par = NULL;
info->aperture_base = efifb_fix.smem_start;
- info->aperture_size = size_total;
+ info->aperture_size = size_remap;
info->screen_base = ioremap(efifb_fix.smem_start, efifb_fix.smem_len);
if (!info->screen_base) {
diff --git a/drivers/virtio/virtio_balloon.c b/drivers/virtio/virtio_balloon.c
index 505be88c82a..369f2eebbad 100644
--- a/drivers/virtio/virtio_balloon.c
+++ b/drivers/virtio/virtio_balloon.c
@@ -28,7 +28,7 @@
struct virtio_balloon
{
struct virtio_device *vdev;
- struct virtqueue *inflate_vq, *deflate_vq;
+ struct virtqueue *inflate_vq, *deflate_vq, *stats_vq;
/* Where the ballooning thread waits for config to change. */
wait_queue_head_t config_change;
@@ -49,6 +49,10 @@ struct virtio_balloon
/* The array of pfns we tell the Host about. */
unsigned int num_pfns;
u32 pfns[256];
+
+ /* Memory statistics */
+ int need_stats_update;
+ struct virtio_balloon_stat stats[VIRTIO_BALLOON_S_NR];
};
static struct virtio_device_id id_table[] = {
@@ -154,6 +158,72 @@ static void leak_balloon(struct virtio_balloon *vb, size_t num)
}
}
+static inline void update_stat(struct virtio_balloon *vb, int idx,
+ u16 tag, u64 val)
+{
+ BUG_ON(idx >= VIRTIO_BALLOON_S_NR);
+ vb->stats[idx].tag = tag;
+ vb->stats[idx].val = val;
+}
+
+#define pages_to_bytes(x) ((u64)(x) << PAGE_SHIFT)
+
+static void update_balloon_stats(struct virtio_balloon *vb)
+{
+ unsigned long events[NR_VM_EVENT_ITEMS];
+ struct sysinfo i;
+ int idx = 0;
+
+ all_vm_events(events);
+ si_meminfo(&i);
+
+ update_stat(vb, idx++, VIRTIO_BALLOON_S_SWAP_IN,
+ pages_to_bytes(events[PSWPIN]));
+ update_stat(vb, idx++, VIRTIO_BALLOON_S_SWAP_OUT,
+ pages_to_bytes(events[PSWPOUT]));
+ update_stat(vb, idx++, VIRTIO_BALLOON_S_MAJFLT, events[PGMAJFAULT]);
+ update_stat(vb, idx++, VIRTIO_BALLOON_S_MINFLT, events[PGFAULT]);
+ update_stat(vb, idx++, VIRTIO_BALLOON_S_MEMFREE,
+ pages_to_bytes(i.freeram));
+ update_stat(vb, idx++, VIRTIO_BALLOON_S_MEMTOT,
+ pages_to_bytes(i.totalram));
+}
+
+/*
+ * While most virtqueues communicate guest-initiated requests to the hypervisor,
+ * the stats queue operates in reverse. The driver initializes the virtqueue
+ * with a single buffer. From that point forward, all conversations consist of
+ * a hypervisor request (a call to this function) which directs us to refill
+ * the virtqueue with a fresh stats buffer. Since stats collection can sleep,
+ * we notify our kthread which does the actual work via stats_handle_request().
+ */
+static void stats_request(struct virtqueue *vq)
+{
+ struct virtio_balloon *vb;
+ unsigned int len;
+
+ vb = vq->vq_ops->get_buf(vq, &len);
+ if (!vb)
+ return;
+ vb->need_stats_update = 1;
+ wake_up(&vb->config_change);
+}
+
+static void stats_handle_request(struct virtio_balloon *vb)
+{
+ struct virtqueue *vq;
+ struct scatterlist sg;
+
+ vb->need_stats_update = 0;
+ update_balloon_stats(vb);
+
+ vq = vb->stats_vq;
+ sg_init_one(&sg, vb->stats, sizeof(vb->stats));
+ if (vq->vq_ops->add_buf(vq, &sg, 1, 0, vb) < 0)
+ BUG();
+ vq->vq_ops->kick(vq);
+}
+
static void virtballoon_changed(struct virtio_device *vdev)
{
struct virtio_balloon *vb = vdev->priv;
@@ -190,8 +260,11 @@ static int balloon(void *_vballoon)
try_to_freeze();
wait_event_interruptible(vb->config_change,
(diff = towards_target(vb)) != 0
+ || vb->need_stats_update
|| kthread_should_stop()
|| freezing(current));
+ if (vb->need_stats_update)
+ stats_handle_request(vb);
if (diff > 0)
fill_balloon(vb, diff);
else if (diff < 0)
@@ -204,10 +277,10 @@ static int balloon(void *_vballoon)
static int virtballoon_probe(struct virtio_device *vdev)
{
struct virtio_balloon *vb;
- struct virtqueue *vqs[2];
- vq_callback_t *callbacks[] = { balloon_ack, balloon_ack };
- const char *names[] = { "inflate", "deflate" };
- int err;
+ struct virtqueue *vqs[3];
+ vq_callback_t *callbacks[] = { balloon_ack, balloon_ack, stats_request };
+ const char *names[] = { "inflate", "deflate", "stats" };
+ int err, nvqs;
vdev->priv = vb = kmalloc(sizeof(*vb), GFP_KERNEL);
if (!vb) {
@@ -219,14 +292,31 @@ static int virtballoon_probe(struct virtio_device *vdev)
vb->num_pages = 0;
init_waitqueue_head(&vb->config_change);
vb->vdev = vdev;
+ vb->need_stats_update = 0;
- /* We expect two virtqueues. */
- err = vdev->config->find_vqs(vdev, 2, vqs, callbacks, names);
+ /* We expect two virtqueues: inflate and deflate,
+ * and optionally stat. */
+ nvqs = virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_STATS_VQ) ? 3 : 2;
+ err = vdev->config->find_vqs(vdev, nvqs, vqs, callbacks, names);
if (err)
goto out_free_vb;
vb->inflate_vq = vqs[0];
vb->deflate_vq = vqs[1];
+ if (virtio_has_feature(vb->vdev, VIRTIO_BALLOON_F_STATS_VQ)) {
+ struct scatterlist sg;
+ vb->stats_vq = vqs[2];
+
+ /*
+ * Prime this virtqueue with one buffer so the hypervisor can
+ * use it to signal us later.
+ */
+ sg_init_one(&sg, vb->stats, sizeof vb->stats);
+ if (vb->stats_vq->vq_ops->add_buf(vb->stats_vq,
+ &sg, 1, 0, vb) < 0)
+ BUG();
+ vb->stats_vq->vq_ops->kick(vb->stats_vq);
+ }
vb->thread = kthread_run(balloon, vb, "vballoon");
if (IS_ERR(vb->thread)) {
@@ -264,7 +354,10 @@ static void __devexit virtballoon_remove(struct virtio_device *vdev)
kfree(vb);
}
-static unsigned int features[] = { VIRTIO_BALLOON_F_MUST_TELL_HOST };
+static unsigned int features[] = {
+ VIRTIO_BALLOON_F_MUST_TELL_HOST,
+ VIRTIO_BALLOON_F_STATS_VQ,
+};
static struct virtio_driver virtio_balloon_driver = {
.feature_table = features,
diff --git a/drivers/virtio/virtio_pci.c b/drivers/virtio/virtio_pci.c
index 28d9cf7cf72..1d5191fab62 100644
--- a/drivers/virtio/virtio_pci.c
+++ b/drivers/virtio/virtio_pci.c
@@ -702,7 +702,7 @@ static struct pci_driver virtio_pci_driver = {
.name = "virtio-pci",
.id_table = virtio_pci_id_table,
.probe = virtio_pci_probe,
- .remove = virtio_pci_remove,
+ .remove = __devexit_p(virtio_pci_remove),
#ifdef CONFIG_PM
.suspend = virtio_pci_suspend,
.resume = virtio_pci_resume,
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index fbd2ecde93e..0db906b3c95 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -21,6 +21,24 @@
#include <linux/virtio_config.h>
#include <linux/device.h>
+/* virtio guest is communicating with a virtual "device" that actually runs on
+ * a host processor. Memory barriers are used to control SMP effects. */
+#ifdef CONFIG_SMP
+/* Where possible, use SMP barriers which are more lightweight than mandatory
+ * barriers, because mandatory barriers control MMIO effects on accesses
+ * through relaxed memory I/O windows (which virtio does not use). */
+#define virtio_mb() smp_mb()
+#define virtio_rmb() smp_rmb()
+#define virtio_wmb() smp_wmb()
+#else
+/* We must force memory ordering even if guest is UP since host could be
+ * running on another CPU, but SMP barriers are defined to barrier() in that
+ * configuration. So fall back to mandatory barriers instead. */
+#define virtio_mb() mb()
+#define virtio_rmb() rmb()
+#define virtio_wmb() wmb()
+#endif
+
#ifdef DEBUG
/* For development, we want to crash whenever the ring is screwed. */
#define BAD_RING(_vq, fmt, args...) \
@@ -36,10 +54,9 @@
panic("%s:in_use = %i\n", \
(_vq)->vq.name, (_vq)->in_use); \
(_vq)->in_use = __LINE__; \
- mb(); \
} while (0)
#define END_USE(_vq) \
- do { BUG_ON(!(_vq)->in_use); (_vq)->in_use = 0; mb(); } while(0)
+ do { BUG_ON(!(_vq)->in_use); (_vq)->in_use = 0; } while(0)
#else
#define BAD_RING(_vq, fmt, args...) \
do { \
@@ -221,13 +238,13 @@ static void vring_kick(struct virtqueue *_vq)
START_USE(vq);
/* Descriptors and available array need to be set before we expose the
* new available array entries. */
- wmb();
+ virtio_wmb();
vq->vring.avail->idx += vq->num_added;
vq->num_added = 0;
/* Need to update avail index before checking if we should notify */
- mb();
+ virtio_mb();
if (!(vq->vring.used->flags & VRING_USED_F_NO_NOTIFY))
/* Prod other side to tell it about changes. */
@@ -286,7 +303,7 @@ static void *vring_get_buf(struct virtqueue *_vq, unsigned int *len)
}
/* Only get used array entries after they have been exposed by host. */
- rmb();
+ virtio_rmb();
i = vq->vring.used->ring[vq->last_used_idx%vq->vring.num].id;
*len = vq->vring.used->ring[vq->last_used_idx%vq->vring.num].len;
@@ -324,7 +341,7 @@ static bool vring_enable_cb(struct virtqueue *_vq)
/* We optimistically turn back on interrupts, then check if there was
* more to do. */
vq->vring.avail->flags &= ~VRING_AVAIL_F_NO_INTERRUPT;
- mb();
+ virtio_mb();
if (unlikely(more_used(vq))) {
END_USE(vq);
return false;
@@ -334,6 +351,30 @@ static bool vring_enable_cb(struct virtqueue *_vq)
return true;
}
+static void *vring_detach_unused_buf(struct virtqueue *_vq)
+{
+ struct vring_virtqueue *vq = to_vvq(_vq);
+ unsigned int i;
+ void *buf;
+
+ START_USE(vq);
+
+ for (i = 0; i < vq->vring.num; i++) {
+ if (!vq->data[i])
+ continue;
+ /* detach_buf clears data, so grab it now. */
+ buf = vq->data[i];
+ detach_buf(vq, i);
+ END_USE(vq);
+ return buf;
+ }
+ /* That should have freed everything. */
+ BUG_ON(vq->num_free != vq->vring.num);
+
+ END_USE(vq);
+ return NULL;
+}
+
irqreturn_t vring_interrupt(int irq, void *_vq)
{
struct vring_virtqueue *vq = to_vvq(_vq);
@@ -360,6 +401,7 @@ static struct virtqueue_ops vring_vq_ops = {
.kick = vring_kick,
.disable_cb = vring_disable_cb,
.enable_cb = vring_enable_cb,
+ .detach_unused_buf = vring_detach_unused_buf,
};
struct virtqueue *vring_new_virtqueue(unsigned int num,
@@ -406,8 +448,11 @@ struct virtqueue *vring_new_virtqueue(unsigned int num,
/* Put everything in free lists. */
vq->num_free = num;
vq->free_head = 0;
- for (i = 0; i < num-1; i++)
+ for (i = 0; i < num-1; i++) {
vq->vring.desc[i].next = i+1;
+ vq->data[i] = NULL;
+ }
+ vq->data[i] = NULL;
return &vq->vq;
}
diff --git a/drivers/watchdog/bfin_wdt.c b/drivers/watchdog/bfin_wdt.c
index c7b3f9df231..2159e668751 100644
--- a/drivers/watchdog/bfin_wdt.c
+++ b/drivers/watchdog/bfin_wdt.c
@@ -1,9 +1,8 @@
/*
* Blackfin On-Chip Watchdog Driver
- * Supports BF53[123]/BF53[467]/BF54[2489]/BF561
*
* Originally based on softdog.c
- * Copyright 2006-2007 Analog Devices Inc.
+ * Copyright 2006-2010 Analog Devices Inc.
* Copyright 2006-2007 Michele d'Amico
* Copyright 1996 Alan Cox <alan@lxorguk.ukuu.org.uk>
*
@@ -137,13 +136,15 @@ static int bfin_wdt_running(void)
*/
static int bfin_wdt_set_timeout(unsigned long t)
{
- u32 cnt;
+ u32 cnt, max_t, sclk;
unsigned long flags;
- stampit();
+ sclk = get_sclk();
+ max_t = -1 / sclk;
+ cnt = t * sclk;
+ stamp("maxtimeout=%us newtimeout=%lus (cnt=%#x)", max_t, t, cnt);
- cnt = t * get_sclk();
- if (cnt < get_sclk()) {
+ if (t > max_t) {
printk(KERN_WARNING PFX "timeout value is too large\n");
return -EINVAL;
}