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linux-2.6/include/media
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Brandon Philips 137d1cb19d V4L/DVB (7493): videobuf: Avoid deadlock with QBUF and bring up to spec for empty queue 
Add a waitqueue to wait on when there are no buffers in the buffer queue.
DQBUF waits on this queue without holding vb_lock to allow a QBUF to happen.
Once a buffer has been queued we recheck that the queue is still streaming and
wait on the new buffer's waitqueue while holding the vb_lock.  The driver
should come along in a timely manner and put the buffer into its next state
finishing the DQBUF.

By implementing this waitqueue it also brings the videobuf DQBUF up to spec and
it now blocks on O_NONBLOCK even when no buffers have been queued via QBUF:

"By default VIDIOC_DQBUF blocks when no buffer is in the outgoing queue."
 - V4L2 spec

Signed-off-by: Brandon Philips <bphilips@suse.de>
CC: Trent Piepho <xyzzy@speakeasy.org>
CC: Carl Karsten <carl@personnelware.com>
CC: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
 		2008-04-24 14:07:57 -03:00
..
audiochip.h V4L/DVB (4666): Ensure the WM8775 driver is loaded generically for any board. 2006-10-03 15:13:48 -03:00
cs53l32a.h V4L/DVB (3599): Implement new routing commands for wm8775 and cs53l32a. 2006-03-24 16:27:00 -03:00
cs5345.h V4L/DVB (6869): cs5345: new i2c driver 2008-01-25 19:04:08 -02:00
cx2341x.h V4L/DVB (6861): cx2341x: command argument should be u32 instead of int 2008-01-25 19:04:04 -02:00
cx25840.h V4L/DVB (7002): cx25840: Add basic CX23885 AVCore support 2008-01-25 19:04:47 -02:00
i2c-addr.h V4L/DVB (3548): Renamed I2C_foo addresses to I2C_ADDR_foo 2006-03-24 16:26:51 -03:00
ir-common.h V4L/DVB (7372): cx88: Add IR support for Pixelview MPEG 8000GT 2008-04-24 14:07:51 -03:00
ir-kbd-i2c.h V4L/DVB (4023): Subject: Pinnacle PCTV grey remote control support 2006-06-25 02:00:28 -03:00
m52790.h V4L/DVB (6486): m52790: add new Mitsubishi A/V switch i2c driver 2008-01-25 19:01:46 -02:00
msp3400.h V4L/DVB (3702): Make msp3400 routing defines more consistent 2006-04-02 04:56:11 -03:00
ovcamchip.h i2c: Cleanup the includes of <linux/i2c.h> 2007-05-01 23:26:29 +02:00
pwc-ioctl.h V4L/DVB (3835): [PATCH] update pwc driver 2006-06-25 01:58:20 -03:00
rds.h include/media/: Spelling fixes 2008-02-03 17:19:47 +02:00
saa6752hs.h [PATCH] v4l: SAA7134 hybrid DVB 2005-07-12 16:01:05 -07:00
saa7115.h V4L/DVB (5113): Adds video output routing 2007-02-21 13:34:47 -02:00
saa7127.h V4L/DVB (3608): Implement new routing commands in saa7127.c 2006-04-02 04:54:56 -03:00
saa7146.h [PATCH] Fix breakage after SG cleanups 2007-10-23 12:02:39 -07:00
saa7146_vv.h V4L/DVB (6496): saa7146_vv.h: remove wrong include <linux/videodev.h> 2008-01-25 19:01:52 -02:00
soc_camera.h V4L/DVB (7406): soc-camera: improve separation between soc_camera_ops and soc_camera_device 2008-04-24 14:07:53 -03:00
tuner-types.h V4L/DVB (7352): tuner-simple: enable digital tuning support for Philips FMD1216ME 2008-04-24 14:07:50 -03:00
tuner.h V4L/DVB (7381): tuner: rename TUNER_PHILIPS_ATSC to TUNER_PHILIPS_FCV1236D 2008-04-24 14:07:52 -03:00
tvaudio.h V4L/DVB (3577): Cleanup audio input handling 2006-03-24 16:26:56 -03:00
tveeprom.h V4L/DVB (4812): Detect presence of IR receiver/IR transmitter in tveeprom 2006-12-10 08:51:17 -02:00
tvp5150.h V4L/DVB (3712): Fix video input setting of em28xx, use _INT_S_VIDEO_ROUTING in tvp5150 2006-06-25 01:57:38 -03:00
upd64031a.h V4L/DVB (3666): Remove trailing newlines 2006-04-02 04:55:52 -03:00
upd64083.h V4L/DVB (3666): Remove trailing newlines 2006-04-02 04:55:52 -03:00
v4l2-chip-ident.h V4L/DVB (7169): Add chip IDs for Micron mt9m001 and mt9v022 CMOS cameras 2008-04-24 14:07:42 -03:00
v4l2-common.h V4L/DVB (7133): Fix Kconfig dependencies 2008-02-18 11:14:53 -03:00
v4l2-dev.h V4L/DVB (7133): Fix Kconfig dependencies 2008-02-18 11:14:53 -03:00
v4l2-i2c-drv-legacy.h i2c: Constify client address data 2008-01-27 18:14:46 +01:00
v4l2-i2c-drv.h V4L/DVB (6921): include/media/v4l2-i2c-drv.h must #include <media/v4l2-common.h> 2008-01-25 19:04:24 -02:00
v4l2-int-device.h V4L/DVB (6580): Set slave's master before master's attach call. 2008-01-25 19:02:06 -02:00
videobuf-core.h V4L/DVB (7493): videobuf: Avoid deadlock with QBUF and bring up to spec for empty queue 2008-04-24 14:07:57 -03:00
videobuf-dma-sg.h V4L/DVB (7237): Convert videobuf-dma-sg to generic DMA API 2008-04-24 14:07:44 -03:00
videobuf-dvb.h V4L/DVB (6257): Rename video-buf-dvb to videobuf-dvb to be consistent with the other patches 2007-10-10 00:02:46 -03:00
videobuf-vmalloc.h V4L/DVB (7150): [v4l] convert videbuf_vmalloc_memory to videobuf_vmalloc_memory 2008-02-18 11:15:13 -03:00
wm8775.h V4L/DVB (3599): Implement new routing commands for wm8775 and cs53l32a. 2006-03-24 16:27:00 -03:00