linux-stable.git/include/media/v4l2-subdev.h, branch linux-3.12.y

[media] V4L: Merge struct v4l2_async_subdev_list with struct v4l2_subdev

2013-07-30T18:54:56+00:00

By integrating the v4l2-async API internals a bit more with
the core overall the v4l2-async code becomes a bit simpler
and easier to follow.
Acked-and-tested-by: Lad, Prabhakar 

Signed-off-by: Sylwester Nawrocki 
Signed-off-by: Kyungmin Park 
Acked-by: Laurent Pinchart 
Acked-by: Hans Verkuil 
Acked-by: Guennadi Liakhovetski 
Signed-off-by: Mauro Carvalho Chehab

[media] V4L2: support asynchronous subdevice registration

2013-06-21T19:30:00+00:00

Currently bridge device drivers register devices for all subdevices
synchronously, typically, during their probing. E.g. if an I2C CMOS sensor
is attached to a video bridge device, the bridge driver will create an I2C
device and wait for the respective I2C driver to probe. This makes linking
of devices straight forward, but this approach cannot be used with
intrinsically asynchronous and unordered device registration systems like
the Flattened Device Tree. To support such systems this patch adds an
asynchronous subdevice registration framework to V4L2. To use it respective
(e.g. I2C) subdevice drivers must register themselves with the framework.
A bridge driver on the other hand must register notification callbacks,
that will be called upon various related events.

Signed-off-by: Guennadi Liakhovetski 
Acked-by: Hans Verkuil 
Acked-by: Laurent Pinchart 
Tested-by: Lad, Prabhakar 
Signed-off-by: Mauro Carvalho Chehab

[media] V4L2: add a device pointer to struct v4l2_subdev

2013-06-21T19:28:36+00:00

It is often useful to have simple means to get from a subdevice to the
underlying physical device. This patch adds such a pointer to struct
v4l2_subdev and sets it accordingly in the I2C and SPI cases.

Signed-off-by: Guennadi Liakhovetski 
Acked-by: Hans Verkuil 
Acked-by: Laurent Pinchart 
Tested-by: Lad, Prabhakar 
Signed-off-by: Mauro Carvalho Chehab

[media] v4l2-core: remove support for obsolete VIDIOC_DBG_G_CHIP_IDENT

2013-06-21T13:46:44+00:00

This has been replaced by the new and much better VIDIOC_DBG_G_CHIP_INFO.

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

[media] v4l2-subdev: remove obsolete dv_preset ops

2013-03-24T16:38:33+00:00

These ops are no longer used, so it's time to remove them.

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

[media] v4l2-core: add code to check for specific ops

2013-03-24T14:59:02+00:00

This patch adds a v4l2_subdev_has_op() macro and a v4l2_device_has_op macro to
quickly check if a specific subdev or any subdev supports a particular subdev
operation.
This makes it easy for drivers to disable certain ioctls if none of the subdevs
supports the necessary functionality.

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

[media] v4l2: add const to argument of write-only s_register ioctl

2013-03-24T11:47:01+00:00

This ioctl is defined as IOW, so pass the argument as const.

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

[media] v4l2: add const to argument of write-only s_tuner ioctl

2013-03-24T09:31:23+00:00

This ioctl is defined as IOW, so pass the argument as const.

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

[media] v4l2: add const to argument of write-only s_frequency ioctl

2013-03-24T09:25:34+00:00

This ioctl is defined as IOW, so pass the argument as const.

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

[media] V4L: Add [get/set]_frame_desc subdev callbacks

2012-10-06T00:28:01+00:00

Add subdev callbacks for setting up parameters of the frame on media bus
that are not exposed to user space directly. This is just an initial,
mostly stub implementation. struct v4l2_mbus_frame_desc is intended
to be extended with sub-structures specific to a particular hardware media
bus. For now these new callbacks are used only to query or specify maximum
size of a compressed or hybrid (container) media bus frame in octets.

Signed-off-by: Sylwester Nawrocki 
Signed-off-by: Kyungmin Park 
Signed-off-by: Mauro Carvalho Chehab