kernel/git/stable/linux-stable.git/include/media/v4l2-subdev.h, branch linux-2.6.39.y

[media] v4l: Add subdev sensor g_skip_frames operation

2011-03-22T07:53:34+00:00

Some buggy sensors generate corrupt frames when the stream is started. This new operation return the number of corrupt frames to skip when starting the stream. Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l: v4l2_subdev userspace crop API

2011-03-22T07:53:33+00:00

This patch adds the VIDIOC_SUBDEV_S_CROP and G_CROP ioctls to the userland API. CROPCAP is not implemented because it's redundant. Signed-off-by: Antti Koskipaa Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l: v4l2_subdev userspace frame interval API

2011-03-22T07:53:32+00:00

The three new ioctl VIDIOC_SUBDEV_ENUM_FRAME_INTERVAL, VIDIOC_SUBDEV_G_FRAME_INTERVAL and VIDIOC_SUBDEV_S_FRAME_INTERVAL can be used to enumerate and configure a subdev's frame rate from userspace. Two new video::g/s_frame_interval subdev operations are introduced to support those ioctls. The existing video::g/s_parm operations are deprecated and shouldn't be used anymore. Signed-off-by: Laurent Pinchart Signed-off-by: Sakari Ailus Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l: v4l2_subdev userspace format API

2011-03-22T07:53:31+00:00

Add a userspace API to get, set and enumerate the media format on a subdev pad. The format at the output of a subdev usually depends on the format at its input(s). The try format operation is thus not suitable for probing format at individual pads, as it can't modify the device state and thus can't remember the format tried at the input to compute the output format. To fix the problem, pass an extra argument to the get/set format operations to select the 'try' or 'active' format. The try format is used when probing the subdev. Setting the try format must not change the device configuration but can store data for later reuse. Data storage is provided at the file-handle level so applications probing the subdev concurently won't interfere with each other. The active format is used when configuring the subdev. It's identical to the format handled by the usual get/set operations. Signed-off-by: Laurent Pinchart Signed-off-by: Stanimir Varbanov Signed-off-by: Sakari Ailus Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l: v4l2_subdev pad-level operations

2011-03-22T07:53:28+00:00

Add a v4l2_subdev_pad_ops structure for the operations that need to be performed at the pad level such as format-related operations. Pad format-related operations use v4l2_mbus_framefmt instead of v4l2_format. Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l: subdev: Add new file operations

2011-03-22T07:53:27+00:00

V4L2 sub-devices store pad formats and crop settings in the file handle. To let drivers initialize those settings properly, add an open operation that is called when the subdev is opened as well as a corresponding close operation. Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l: Create v4l2 subdev file handle structure

2011-03-22T07:53:26+00:00

Used for storing subdev information per file handle and hold V4L2 file handle. Signed-off-by: Stanimir Varbanov Signed-off-by: Antti Koskipaa Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l: Make v4l2_subdev inherit from media_entity

2011-03-22T07:53:20+00:00

V4L2 subdevices are media entities. As such they need to inherit from (include) the media_entity structure. When registering/unregistering the subdevice, the media entity is automatically registered/unregistered. The entity is acquired on device open and released on device close. Signed-off-by: Laurent Pinchart Signed-off-by: Sakari Ailus Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l: subdev: Events support

2011-03-21T23:32:42+00:00

Provide v4l2_subdevs with v4l2_event support. Subdev drivers only need very little to support events. Signed-off-by: Sakari Ailus Signed-off-by: David Cohen Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] v4l: subdev: Uninline the v4l2_subdev_init function

2011-03-21T23:32:42+00:00

The function isn't small or performance sensitive enough to be inlined. Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab