kernel/drivers/media/usb/stk1160, branch linux-4.3.y

[media] stk1160: Add frame scaling support

2015-07-17T12:52:31Z

This commit implements frame decimation for stk1160, which allows to support format changes instead of a static frame size. The stk1160 supports independent row and column decimation, in two different modes: * set a number of rows/columns units to skip for each unit sent. * set a number of rows/columns units to send for each unit skipped. This effectively allows to achieve different frame scaling ratios. The unit number can be set to either two row/columns sent/skipped, or four row/columns sent/skipped. Since the video format (UYVY) has 4-bytes, using a unit number of two row/columns results in frame color 'shifting', so set to four row/columns sent/skipped. Signed-off-by: Michael Stegemann Signed-off-by: Dale Hamel Signed-off-by: Ezequiel Garcia Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] stk1160: Reduce driver verbosity

2015-07-17T12:51:15Z

These messages are not really informational, and just makes the driver's output too verbose. This commit changes some messages to a debug level, removes a really useless "driver loaded" message and finally undefines the DEBUG macro. Signed-off-by: Ezequiel Garcia Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] stk1160: fix sequence handling

2015-07-06T11:25:46Z

Fix the sequence counter: we're counting frames, not fields. Also remove the unused 'field' field. That would only be needed if this driver would support V4L2_FIELD_ALTERNATE. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] stk1160: add DMABUF support

2015-06-06T10:33:36Z

Implement DMABUF exporting and importing. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] stk1160: Make sure current buffer is released

2015-04-02T21:18:37Z

The available (i.e. not used) buffers are returned by stk1160_clear_queue(), on the stop_streaming() path. However, this is insufficient and the current buffer must be released as well. Fix it. Cc: stable@vger.kernel.org Signed-off-by: Ezequiel Garcia Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] media: drivers shouldn't touch debug field in video_device

2014-12-23T12:29:04Z

The debug field in struct video_device is for internal use only and drivers should mix that with their own debug module options. It is handled by the V4L2 core and users can set it using /sys/class/video4linux//debug. It has been deprecated for some time now, so it is time to remove it completely from the drivers. Signed-off-by: Hans Verkuil Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab

[media] stk1160: fix sparse warning

2014-11-05T11:08:38Z

stk1160-v4l.c:478:49: warning: incorrect type in argument 3 (different base types) Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] media: remove the setting of the flag V4L2_FL_USE_FH_PRIO

2014-07-04T19:14:59Z

Since all the drivers that use `struct v4l2_fh' use the core priority checking, the setting of the flag in the drivers can be removed. Signed-off-by: Ramakrishnan Muthukrishnan Reviewed-by: Hans Verkuil Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab

[media] media: stk1160: Avoid stack-allocated buffer for control URBs

2014-05-24T20:12:11Z

Currently stk1160_read_reg() uses a stack-allocated char to get the read control value. This is wrong because usb_control_msg() requires a kmalloc-ed buffer. This commit fixes such issue by kmalloc'ating a 1-byte buffer to receive the read value. While here, let's remove the urb_buf array which was meant for a similar purpose, but never really used. Cc: Alan Stern Reported-by: Sander Eikelenboom Signed-off-by: Ezequiel Garcia Signed-off-by: Hans Verkuil Cc: stable@vger.kernel.org # for v3.7 and up Signed-off-by: Mauro Carvalho Chehab

[media] v4l: subdev: Move [gs]_std operation to video ops

2014-05-24T20:11:26Z

The g_std and s_std operations are video-related, move them to the video ops where they belong. Signed-off-by: Laurent Pinchart Acked-by: Hans Verkuil Acked-by: Lad, Prabhakar Acked-by: Sakari Ailus Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab