11 Jan, 2012
1 commit
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This patch introduces new api for a precise control of cropping and composing
features for video devices. The new ioctls are VIDIOC_S_SELECTION and
VIDIOC_G_SELECTION.Signed-off-by: Tomasz Stanislawski
Signed-off-by: Kyungmin Park
Signed-off-by: Mauro Carvalho Chehab
04 Nov, 2011
1 commit
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A possibility to preallocate and initialise buffers of different sizes
in V4L2 is required for an efficient implementation of a snapshot
mode. This patch adds two new ioctl()s: VIDIOC_CREATE_BUFS and
VIDIOC_PREPARE_BUF and defines respective data structures.Signed-off-by: Guennadi Liakhovetski
Signed-off-by: Mauro Carvalho Chehab
23 Mar, 2011
1 commit
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Drivers that use v4l2_fh can now use the core framework support of g/s_priority.
Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
22 Mar, 2011
1 commit
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Add multi-planar API core ioctl handling and conversion functions.
[mchehab@redhat.com: CondingStyle fixup]
Signed-off-by: Pawel Osciak
Signed-off-by: Kyungmin Park
Reviewed-by: Marek Szyprowski
Signed-off-by: Marek Szyprowski
Reviewed-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
29 Dec, 2010
1 commit
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Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
19 May, 2010
1 commit
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Add support for event handling to do_ioctl.
Signed-off-by: Sakari Ailus
Signed-off-by: Mauro Carvalho Chehab
16 Dec, 2009
1 commit
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This adds the above APIs to the v4l2 core. This is based on version v1.2
of the RFC titled "V4L - Support for video timings at the input/output interface"
Following new ioctls are added:-- VIDIOC_ENUM_DV_PRESETS
- VIDIOC_S_DV_PRESET
- VIDIOC_G_DV_PRESET
- VIDIOC_QUERY_DV_PRESET
- VIDIOC_S_DV_TIMINGS
- VIDIOC_G_DV_TIMINGSPlease refer to the RFC for the details. This code was tested using vpfe
capture driver on TI's DM365. Following is the test configuration used :-Blu-Ray HD DVD source -> TVP7002 -> DM365 (VPFE) ->DDR
A draft version of the TVP7002 driver (currently being reviewed in the mailing
list) was used that supports V4L2_DV_1080I60 & V4L2_DV_720P60 presets.A loopback video capture application was used for testing these APIs. This calls
following IOCTLS :-- verify the new v4l2_input capabilities flag added
- Enumerate available presets using VIDIOC_ENUM_DV_PRESETS
- Set one of the supported preset using VIDIOC_S_DV_PRESET
- Get current preset using VIDIOC_G_DV_PRESET
- Detect current preset using VIDIOC_QUERY_DV_PRESET
- Using stub functions in tvp7002, verify VIDIOC_S_DV_TIMINGS
and VIDIOC_G_DV_TIMINGS ioctls are received at the sub device.
- Tested on 64bit platform by Hans VerkuilSigned-off-by: Muralidharan Karicheri
Signed-off-by: Hans Verkuil
Reviewed-by: Randy Dunlap
Signed-off-by: Mauro Carvalho Chehab
30 Mar, 2009
2 commits
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Signed-off-by: Mauro Carvalho Chehab
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Some code was calling v4l2_video_std_construct() when all it cared about
was the frame period. So make a function that just returns that and have
v4l2_video_std_construct() use it.At this point there are no users of v4l2_video_std_construct() left outside
of v4l2-ioctl, so it could be un-exported and made static.Change v4l2_video_std_construct() so that it doesn't zero out the struct
v4l2_standard passed in. It's already been zeroed out in the common ioctl
code.Signed-off-by: Trent Piepho
Signed-off-by: Mauro Carvalho Chehab
03 Jan, 2009
4 commits
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Since the i2c driver ID will be removed in the near future we have to
modify the v4l2 debugging API to use the driver name instead of driver ID.Note that this API is not used in applications other than v4l2-dbg.cpp
as it is for debugging and testing only.Should anyone use the old VIDIOC_G_CHIP_IDENT, then this will be logged
with a warning that it is deprecated and will be removed in 2.6.30.Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab -
This rename prevents conflicts with the older compat_ioctl32 module.
Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab -
Since internal to v4l2 the ioctl prototype is the same regardless of it
being called through .ioctl or .unlocked_ioctl, we need to convert it all
to the long return type of unlocked_ioctl.Thanks to Jean-Francois Moine for posting an initial patch for this and
thus bringing it to our attention.Cc: Jean-Francois Moine
Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab -
Introduce a struct v4l2_file_operations for v4l2 drivers.
Remove the unnecessary inode argument.
Move compat32 handling (and llseek) into the v4l2-dev core: this is now
handled in the v4l2 core and no longer in the drivers themselves.Note that this changeset reverts an earlier patch that changed the return
type of__video_ioctl2 from int to long. This change will be reinstated
later in a much improved version.Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
30 Dec, 2008
3 commits
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This patch fixes this warning:
drivers/media/video/gspca/gspca.c:1811: warning: initialization from incompatible pointer type
The reason is that the returned argument should be a long, not an
integer.Signed-off-by: Mauro Carvalho Chehab
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video_ioctl2 lacks implementation of those two ioctls:
- VIDIOC_ENUM_FRAMESIZES and VIDIOC_ENUM_FRAMEINTERVALSAdds implementation for those.
Signed-off-by: Mauro Carvalho Chehab
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The inode argument was never used. Removing it from video_usercopy
brings the function pointer type of video_usercopy in line with similar
v4l2 functions, thus simplifying several drivers.Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
22 Oct, 2008
3 commits
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inode is never used on video_ioctl2. Remove it and rename the function to
__video_ioctl2. This allows its usage directly as a callback at
fops.unlocked_ioctl.Since we still need a callback with inode to be used with fops.ioctl,
this patch adds video_ioctl2() that is just a call to __video_ioctl2().Also, this patch adds some comments about video_ioctl2 and __video_ioctl2
usage at v4l2-ioctl.h.Signed-off-by: Mauro Carvalho Chehab
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The inode parameter at v4l_compat_translate_ioctl() were just passed over several
places just to keep compatible with fops.ioctl. However, it weren't used anywere.This patch gets hid of this unused parameter.
Cc: Laurent Pinchart
Cc: Mike Isely
Signed-off-by: Mauro Carvalho Chehab -
Based on an older patch from Sakari Ailus.
Cc: Sakari Ailus
Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
13 Oct, 2008
1 commit
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Remove the vidioc_enum_fmt_vbi_cap ops: it was scheduled for removal in
2.6.28 since the v4l2 specification says that V4L2_BUF_TYPE_VBI_CAPTURE should
not support VIDIOC_ENUM_FMT. It's also pretty pointless.Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
26 Jul, 2008
1 commit
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All ioctl callbacks are now stored in a new v4l2_ioctl_ops struct. Drivers fill in
a const struct v4l2_ioctl_ops and video_device just contains a const pointer to it.This ensures a clean separation between the const ops struct and the non-const
video_device struct.Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
24 Jul, 2008
2 commits
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Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab -
The functions in a header should not belong to another module. The prio functions
belong to v4l2-common.c, so move them to v4l2-common.h.The ioctl functions belong to v4l2-ioctl.c, so create a new v4l2-ioctl.h header
and move those functions to it.Signed-off-by: Hans Verkuil
Signed-off-by: Mauro Carvalho Chehab
