linux-toradex.git/include/media/v4l2-common.h, branch v3.2.9-rt15

[media] v4l2_prio: move from v4l2-common to v4l2-dev

2011-03-22T19:37:54+00:00

We are going to move priority handling into the v4l2 core. As a consequence
the v4l2_prio helper functions need to be moved into the core videodev
module as well to prevent circular dependencies.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] v4l2-subdev: remove core.s_config and v4l2_i2c_new_subdev_cfg()

2011-01-19T13:45:30+00:00

The core.s_config op was meant for legacy drivers that needed to work with old
pre-2.6.26 kernels. This is no longer relevant. Unfortunately, this op was
incorrectly called from several drivers.

Replace those occurences with proper i2c_board_info structs and call
v4l2_i2c_new_subdev_board.

After these changes v4l2_i2c_new_subdev_cfg() was no longer used, so remove
that function as well.

Signed-off-by: Hans Verkuil 
Acked-by: Laurent Pinchart 
Signed-off-by: Mauro Carvalho Chehab

[media] v4l2-ctrls: use const char * const * for the menu arrays

2010-12-30T10:02:14+00:00

This prevents checkpatch warnings generated when defining
'static const char *foo[]' arrays. It makes sense to use
const char * const * anyway since the pointers in the array
are indeed const.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

[media] v4l: Remove module_name argument to the v4l2_i2c_new_subdev* functions

2010-11-22T13:56:26+00:00

The argument isn't used anymore by the functions, remove it.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: v4l2-common: Move v4l2_find_nearest_format from videodev2.h to v4l2-common.h

2010-10-21T03:06:19+00:00

This function is an internal API and belongs in v4l2-common.h, not
videodev.h. The return pointer and probe argument should be const as well.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: v4l2-common: simplify prio utility functions

2010-05-19T15:58:54+00:00

v4l2_prio_init/open/close returned an int when in fact they would
always return 0. Make these void functions.

v4l2_prio_close and v4l2_prio_check pass an enum v4l2_priority as a
pointer for no good reason. Replace with a normal enum v4l2_priority
argument.

These changes will simplify the work of moving priority handling into
the v4l core.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: Add SPI support to V4L2

2010-05-18T03:50:24+00:00

Add support SPI bus to v4l2. Useful for control some device with SPI bus like
hardware MPEG2 encoders and etc.

Signed-off-by: Beholder Intl. Ltd. Dmitry Belimov 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB (13618): v4l2: Adding helper function to get dv preset description

2009-12-16T02:18:47+00:00

This patch adds a helper function to get description of a digital
video preset added by the video timing API. This will be useful for drivers
implementing the above API.

Signed-off-by: Muralidharan Karicheri 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB (12540): v4l: simplify v4l2_i2c_new_subdev and friends

2009-09-19T03:19:24+00:00

Rewrite v4l2_i2c_new_subdev as a simplified version of v4l2_i2c_new_subdev_cfg
and remove v4l2_i2c_new_probed_subdev and v4l2_i2c_new_probed_subdev_addr.

This simplifies this API substantially.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB (11901): v4l2: Create helper function for bounding and aligning images

2009-06-23T06:21:18+00:00

Most hardware has limits on minimum and maximum image dimensions and also
requirements about alignment.  For example, image width must be even or a
multiple of four.  Some hardware has requirements that the total image size
(width * height) be a multiple of some power of two.

v4l_bound_align_image() will enforce min and max width and height, power of
two alignment on width and height, and power of two alignment on total
image size.

It uses an efficient algorithm that will try to find the "closest" image
size that meets the requirements.

Signed-off-by: Trent Piepho 
Signed-off-by: Mauro Carvalho Chehab