linux.git/include/media/v4l2-subdev.h, branch v2.6.38

[media] v4l2-subdev: add (un)register internal ops

2011-01-19T13:45:31+00:00

Some subdevs need to call into the board code after they are registered
and have a valid struct v4l2_device pointer. The s_config op was abused
for this, but now that it is removed we need a cleaner way of solving this.

So this patch adds a struct with internal ops that the v4l2 core can call.

Currently only two ops exist: register and unregister. Subdevs can implement
these to call the board code and pass it the v4l2_device pointer, which the
board code can then use to get access to the struct that embeds the
v4l2_device.

It is expected that in the future open and close ops will also be added.

Signed-off-by: Hans Verkuil 
Acked-by: Laurent Pinchart 
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

V4L/DVB: v4l: Add a v4l2_subdev host private data field

2010-10-21T03:04:52+00:00

The existing priv field stores subdev private data owned by the subdev
driver. Host (bridge) drivers might need to store per-subdev
host-specific data, such as a pointer to platform data.

Add a v4l2_subdev host_priv field to store host-specific data, and
rename the existing priv field to dev_priv.

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

V4L/DVB: v4l2-subdev: remove obsolete enum/try/s/g_fmt

2010-10-21T03:04:42+00:00

These have now all been replaced by enum/try/s/g_mbus_fmt.

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

V4L/DVB: v4l2: Add new control handling framework

2010-08-09T02:43:03+00:00

Add a new framework to handle controls which makes life for driver
developers much easier.

Note that this patch moves some of the control support that used to be in
v4l2-common.c to v4l2-ctrls.c. The tables were copied unchanged. The body
of v4l2_ctrl_query_fill() was copied to a new v4l2_ctrl_fill() function
in v4l2-ctrls.c. This new function doesn't use the v4l2_queryctrl
struct anymore, which makes it more general.

The remainder of v4l2-ctrls.c is all new. Highlights include:

- No need to implement VIDIOC_QUERYCTRL, QUERYMENU, S_CTRL, G_CTRL,
  S_EXT_CTRLS, G_EXT_CTRLS or TRY_EXT_CTRLS in either bridge drivers
  or subdevs. New wrapper functions are provided that can just be plugged in.
  Once everything has been converted these wrapper functions can be removed as well.

- When subdevices are added their controls can be automatically merged
  with the bridge driver's controls.

- Most drivers just need to implement s_ctrl to set the controls.
  The framework handles the locking and tries to be as 'atomic' as possible.

- Ready for the subdev device nodes: the same mechanism applies to subdevs
  and their device nodes as well. Sub-device drivers can make controls
  local, preventing them from being merged with bridge drivers.

- Takes care of backwards compatibility handling of VIDIOC_S_CTRL and
  VIDIOC_G_CTRL. Handling of V4L2_CID_PRIVATE_BASE is fully transparent.
  CTRL_CLASS controls are automatically added.

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

V4L/DVB: v4l2_subdev: Get rid of now unused IR pulse width defines

2010-08-09T02:42:57+00:00

Signed-off-by: Andy Walls 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: v4l2_subdev: Move interrupt_service_routine ptr to v4l2_subdev_core_ops

2010-08-09T02:42:55+00:00

The CX2584x and related cores are multifunction subdevices with a number
of internal blocks that act as interrupt sources.  Move the v4L2_subdev
interrupt_service_routine callback from v4l_subdev_ir_ops to
v4l2_subdev_core_ops, as the video and audio blocks of a CX2584x and
related cores can generate interrupts along with the IR block.  This
change also makes sense for other subdev's that generate interrupts and
do not have an IR block.

Signed-off-by: Andy Walls 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: v4l2_subdev, cx23885: Differentiate IR carrier sense and I/O pin inversion

2010-08-09T02:42:54+00:00

There is a distinction on IR Tx for the CX2388[578] chips of carrier
sense inversion (space is a carrier burst and mark is no burst) and I/O
pin level inversion (0 is high output level, 1 is low output level).
Allow the caller to set these parameters distinctly as v4l2_subdevice
IR parameters.  This permits the IR device to be configured and enabled
without the IR Tx LED being on during idle/space time due to an external
hardware level inversion

Signed-off-by: Andy Walls 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: v4l2_subdev: Add s_io_pin_config to v4l2_subdev_core_ops

2010-08-09T02:42:54+00:00

Add a method to v4l2_sudev_core_ops to allow bridge drivers to
manage what signal pads/functions are routed out to multiplexed IO pins on a
pin by pin basis.  The interface also allows specifying initial output settings
for pins and disabling an IO pin altogether.

Signed-off-by: Andy Walls 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: v4l2-subdev.h: fix enum_mbus_fmt prototype

2010-06-01T04:21:40+00:00

enum_mbus_fmt received an index argument that was defined as an int instead
of an unsigned int. This is now fixed. This had the knock-on effect that the
index argument in the callback get_formats in soc_camera.h also had to be
changed to unsigned int.

Signed-off-by: Hans Verkuil 
Acked-by: Guennadi Liakhovetski 
Signed-off-by: Mauro Carvalho Chehab