linux-stable.git/drivers/media/dvb-core, branch linux-5.0.y

media: dvb_frontend: add debug message for frequency intervals

2018-11-23T16:59:45+00:00

As we did an internal change inside the subsystem to always
represent min/max frequencies in Hz, add a debug message, as this
would help to discover bugs on drivers, if any.

Signed-off-by: Mauro Carvalho Chehab

media: dvb_frontend: don't print function names twice

2018-11-23T16:59:22+00:00

The dvb_frontend dprintk() macro already prints __func__. So,
we don't need to add it again at the printed message.

Signed-off-by: Mauro Carvalho Chehab

Merge tag 'media/v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

2018-10-31T17:53:29+00:00

Pull new experimental media request API from Mauro Carvalho Chehab:
 "A new media request API

  This API is needed to support device drivers that can dynamically
  change their parameters for each new frame. The latest versions of
  Google camera and codec HAL depends on such feature.

  At this stage, it supports only stateless codecs.

  It has been discussed for a long time (at least over the last 3-4
  years), and we finally reached to something that seem to work.

  This series contain both the API and core changes required to support
  it and a new m2m decoder driver (cedrus).

  As the current API is still experimental, the only real driver using
  it (cedrus) was added at staging[1]. We intend to keep it there for a
  while, in order to test the API. Only when we're sure that this API
  works for other cases (like encoders), we'll move this driver out of
  staging and set the API into a stone.

  [1] We added support for the vivid virtual driver (used only for
  testing) to it too, as it makes easier to test the API for the ones
  that don't have the cedrus hardware"

* tag 'media/v4.20-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (53 commits)
  media: dt-bindings: Document the Rockchip VPU bindings
  media: platform: Add Cedrus VPU decoder driver
  media: dt-bindings: media: Document bindings for the Cedrus VPU driver
  media: v4l: Add definition for the Sunxi tiled NV12 format
  media: v4l: Add definitions for MPEG-2 slice format and metadata
  media: videobuf2-core: Rework and rename helper for request buffer count
  media: v4l2-ctrls.c: initialize an error return code with zero
  media: v4l2-compat-ioctl32.c: add missing documentation for a field
  media: media-request: update documentation
  media: media-request: EPERM -> EACCES/EBUSY
  media: v4l2-ctrls: improve media_request_(un)lock_for_update
  media: v4l2-ctrls: use media_request_(un)lock_for_access
  media: media-request: add media_request_(un)lock_for_access
  media: vb2: set reqbufs/create_bufs capabilities
  media: videodev2.h: add new capabilities for buffer types
  media: buffer.rst: only set V4L2_BUF_FLAG_REQUEST_FD for QBUF
  media: v4l2-ctrls: return -EACCES if request wasn't completed
  media: media-request: return -EINVAL for invalid request_fds
  media: vivid: add request support
  media: vivid: add mc
  ...

media: dvb: use signal types to discover pads

2018-09-17T17:16:19+00:00

On tuner pads, multiple signals are present. Be sure to get
the right PAD by using them.

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

media: dvb: dmxdev: move compat_ioctl handling to dmxdev.c

2018-09-12T15:00:51+00:00

All dmx ioctls are compatible, and they are only implemented
in one file, so we can replace the list of commands in
fs/compat_ioctl.c with a single line in dmxdev.

Signed-off-by: Arnd Bergmann 
Signed-off-by: Mauro Carvalho Chehab

media: replace strcpy() by strscpy()

2018-09-11T17:32:17+00:00

The strcpy() function is being deprecated upstream. Replace
it by the safer strscpy().

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

media: use strscpy() instead of strlcpy()

2018-09-11T17:32:17+00:00

The implementation of strscpy() is more robust and safer.

That's now the recommended way to copy NUL terminated strings.

Signed-off-by: Mauro Carvalho Chehab 
Reviewed-by: Kees Cook 
Acked-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

media: videobuf2-core: integrate with media requests

2018-08-31T15:18:35+00:00

Buffers can now be prepared or queued for a request.

A buffer is unbound from the request at vb2_buffer_done time or
when the queue is cancelled.

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

media: vb2: store userspace data in vb2_v4l2_buffer

2018-08-31T15:14:44+00:00

The userspace-provided plane data needs to be stored in
vb2_v4l2_buffer. Currently this information is applied by
__fill_vb2_buffer() which is called by the core prepare_buf
and qbuf functions, but when using requests these functions
aren't called yet since the buffer won't be prepared until
the media request is actually queued.

In the meantime this information has to be stored somewhere
and vb2_v4l2_buffer is a good place for it.

The __fill_vb2_buffer callback now just copies the relevant
information from vb2_v4l2_buffer into the planes array.

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

media: dvb_frontend: ensure that the step is ok for both FE and tuner

2018-08-02T22:11:46+00:00

The frequency step should take into account the tuner step,
as, if tuner step is bigger than frontend step, the zigzag
algorithm won't be doing the right thing, as it will be
tuning multiple times at the same frequency.

Signed-off-by: Mauro Carvalho Chehab