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  1. 22 8月, 2014 1 次提交
  3. 20 12月, 2013 1 次提交
    • H
      [media] omap24xx/tcm825x: move to staging for future removal · a03636cb
      由 Hans Verkuil 提交于 
      The omap24xx driver and the tcm825x sensor driver are the only two
remaining drivers to still use the old deprecated v4l2-int-device API.

Nobody maintains these drivers anymore. But unfortunately the v4l2-int-device
API is used by out-of-tree drivers (MXC platform). This is a very bad situation
since as long as this deprecated API stays in the kernel there is no reason for
those out-of-tree drivers to convert.

This patch moves v4l2-int-device and the two drivers that depend on it to
staging in preparation for their removal.

If someone would be interested in getting these drivers to work, then start with
this since it's not very far from the state where they used to work:

<URL:http://vihersipuli.retiisi.org.uk/cgi-bin/gitweb.cgi?p=~sailus/linux-omap/.git;a=summary>

The branch is n800-cam. Porting to up-to-date APIs can then be done. David
might have done some work in that area, so check with him first.
Signed-off-by: NHans Verkuil <hans.verkuil@cisco.com>
Cc: Sakari Ailus <sakari.ailus@iki.fi>
Cc: David Cohen <dacohen@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
      a03636cb
  5. 29 10月, 2013 1 次提交
    • A
      [media] v4l: ti-vpe: Add VPE mem to mem driver · 45719127
      由 Archit Taneja 提交于 
      VPE is a block which consists of a single memory to memory path which
can perform chrominance up/down sampling, de-interlacing, scaling, and
color space conversion of raster or tiled YUV420 coplanar, YUV422
coplanar or YUV422 interleaved video formats.

We create a mem2mem driver based primarily on the mem2mem-testdev
example. The de-interlacer, scaler and color space converter are all
bypassed for now to keep the driver simple. Chroma up/down sampler
blocks are implemented, so conversion beteen different YUV formats is
possible.

Each mem2mem context allocates a buffer for VPE MMR values which it will
use when it gets access to the VPE HW via the mem2mem queue, it also
allocates a VPDMA descriptor list to which configuration and data
descriptors are added.

Based on the information received via v4l2 ioctls for the source and
destination queues, the driver configures the values for the MMRs, and
stores them in the buffer. There are also some VPDMA parameters like
frame start and line mode which needs to be configured, these are
configured by direct register writes via the VPDMA helper functions.

The driver's device_run() mem2mem op will add each descriptor based on
how the source and destination queues are set up for the given ctx, once
the list is prepared, it's submitted to VPDMA, these descriptors when
parsed by VPDMA will upload MMR registers, start DMA of video buffers on
the various input and output clients/ports.

When the list is parsed completely(and the DMAs on all the output ports
done), an interrupt is generated which we use to notify that the source
and destination buffers are done. The rest of the driver is quite
similar to other mem2mem drivers, we use the multiplane v4l2 ioctls as
the HW support coplanar formats.
Signed-off-by: NArchit Taneja <archit@ti.com>
Acked-by: NHans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: NKamil Debski <k.debski@samsung.com>
Signed-off-by: NMauro Carvalho Chehab <m.chehab@samsung.com>
      45719127
  7. 18 8月, 2013 1 次提交
  9. 31 3月, 2013 1 次提交
  11. 21 12月, 2012 1 次提交
  13. 28 11月, 2012 1 次提交
  15. 16 9月, 2012 1 次提交
  17. 15 9月, 2012 2 次提交
  19. 22 8月, 2012 1 次提交
  21. 21 8月, 2012 2 次提交
  23. 16 8月, 2012 10 次提交
  25. 14 8月, 2012 4 次提交
  27. 13 8月, 2012 1 次提交
    • E
      [media] media: Add stk1160 new driver (easycap replacement) · 9cb2173e
      由 Ezequiel García 提交于 
      This driver adds support for stk1160 usb bridge as used in some
video/audio usb capture devices.
It is a complete rewrite of staging/media/easycap driver and
it's meant as a replacement.

As stk1160 allows communication with an ac97 codec chip, this
driver allows to register a control-only sound card to allow the user
to access ac97 controls.

Two devices have been used for testing:
* 1-cvbs video and 1-audio ac97 input,
* 4-cvbs inputs
Both of these devices reports with the same id [05e1:0408],
so the driver tries to support a superset of the capabilities.

By using keep_buffers module parameter it's possible to prevent
the driver from releasing urb buffers when streaming is stopped.
The usage of this parameter can avoid memory fragmentation that may
cause the driver to stop working on low memory systems.
A similar mechanism is implemented in em28xx driver (see commit 86d38d).
Signed-off-by: NEzequiel Garcia <elezegarcia@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>
      9cb2173e
  29. 06 8月, 2012 2 次提交
  31. 07 7月, 2012 1 次提交
  33. 20 5月, 2012 1 次提交
  35. 14 5月, 2012 2 次提交
  37. 08 5月, 2012 1 次提交
  39. 20 3月, 2012 5 次提交