linux.git/include/media/v4l2-subdev.h, branch v2.6.34

V4L/DVB: cx25840, v4l2-subdev, ivtv, pvrusb2: Fix ivtv/cx25840 tinny audio

2010-02-26T18:10:41+00:00

This change attempts to fix the ivtv tinny audio problem by keeping digitizer
to encoder audio clocks running, while disabling the video clocks as needed to
avoid unpredictable PCI bus hangs.

To accomplish this, for the cx25840 module enabling of audio streaming had
to be separated from enabling video streaming, requiring an additional
v4l2_subdev_audio_op and calls to this new op in the pvrusb2 and ivtv drivers.

The cx231xx and cx23885 driver use the cx25840 module for affecting only
video on s_stream calls, so those drivers needed no change.

The CX23418 hardware does not exhibit either the tinny audio problem nor the PCI
bus hang, so the cx18 driver did not need corresponding changes.

CX2341[56] based cards that are not using the CX2584x family of chips
do not seem to be affected by the tinny audio problem, and this change should
not affect how they are configured. It will delay their first capture by
starting by another 300 msec though.

Many thanks go to Argus  and
Martin Dauskardt  whose persistent testing and
investigation of this problem will hopefully fix this problem once and for all
for many ivtv users.

Reported-by: Martin Dauskardt 
Reported-by: Argus 
Signed-off-by: Andy Walls 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB (13658): v4l: add a media-bus API for configuring v4l2 subdev pixel and frame formats

2009-12-16T11:27:27+00:00

Video subdevices, like cameras, decoders, connect to video bridges over
specialised busses. Data is being transferred over these busses in various
formats, which only loosely correspond to fourcc codes, describing how video
data is stored in RAM. This is not a one-to-one correspondence, therefore we
cannot use fourcc codes to configure subdevice output data formats. This patch
adds codes for several such on-the-bus formats and an API, similar to the
familiar .s_fmt(), .g_fmt(), .try_fmt(), .enum_fmt() API for configuring those
codes. After all users of the old API in struct v4l2_subdev_video_ops are
converted, it will be removed. Also add helper routines to support generic
pass-through mode for the soc-camera framework.

 create mode 100644 drivers/media/video/soc_mediabus.c
 create mode 100644 include/media/soc_mediabus.h
 create mode 100644 include/media/v4l2-mediabus.h

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

V4L/DVB (13644): v4l: add new v4l2-subdev sensor operations, use g_skip_top_lines in soc-camera

2009-12-16T11:27:13+00:00

Introduce new v4l2-subdev sensor operations, move .enum_framesizes() and
.enum_frameintervals() methods to it, add a new .g_skip_top_lines() method
and switch soc-camera to use it instead of .y_skip_top soc_camera_device
member, which can now be removed.

Signed-off-by: Guennadi Liakhovetski 
Reviewed-by: Hans Verkuil 
Reviewed-by: Sergio Aguirre 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB (13571): v4l: Adding Digital Video Timings APIs

2009-12-16T02:18:03+00:00

This adds the above APIs to the v4l2 core. This is based on version v1.2
of the RFC titled "V4L - Support for video timings at the input/output interface"
Following new ioctls are added:-

        - VIDIOC_ENUM_DV_PRESETS
        - VIDIOC_S_DV_PRESET
        - VIDIOC_G_DV_PRESET
        - VIDIOC_QUERY_DV_PRESET
        - VIDIOC_S_DV_TIMINGS
        - VIDIOC_G_DV_TIMINGS

Please refer to the RFC for the details. This code was tested using vpfe
capture driver on TI's DM365. Following is the test configuration used :-

Blu-Ray HD DVD source -> TVP7002 -> DM365 (VPFE) ->DDR

A draft version of the TVP7002 driver (currently being reviewed in the mailing
list) was used that supports V4L2_DV_1080I60 & V4L2_DV_720P60 presets.

A loopback video capture application was used for testing these APIs. This calls
following IOCTLS :-

 -  verify the new v4l2_input capabilities flag added
 -  Enumerate available presets using VIDIOC_ENUM_DV_PRESETS
 -  Set one of the supported preset using VIDIOC_S_DV_PRESET
 -  Get current preset using VIDIOC_G_DV_PRESET
 -  Detect current preset using VIDIOC_QUERY_DV_PRESET
 -  Using stub functions in tvp7002, verify VIDIOC_S_DV_TIMINGS
    and VIDIOC_G_DV_TIMINGS ioctls are received at the sub device.
 -  Tested on 64bit platform by Hans Verkuil

Signed-off-by: Muralidharan Karicheri 
Signed-off-by: Hans Verkuil 
Reviewed-by: Randy Dunlap 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB (13477): v4l2-subdev: remove unnecessary check

2009-12-05T20:42:05+00:00

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

V4L/DVB (13238): v4l2_subdev: rename tuner s_standby operation to core s_power

2009-12-05T20:41:03+00:00

Upcoming I2C v4l2_subdev drivers need a way to control the subdevice
power state from the core. This use case is already partially covered by
the tuner s_standby operation, but no way to explicitly come back from
the standby state is available.

Rename the tuner s_standby operation to core s_power, and fix tuner
drivers accordingly. The tuner core will call s_power(0) instead of
s_standby(). No explicit call to s_power(1) is required for tuners as
they are supposed to wake up from standby automatically.

[mchehab@redhat.com: CodingStyle fix]
Signed-off-by: Laurent Pinchart 
Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB (13096): v4l2-subdev: Add v4l2_subdev_ir_ops and IR notify defines for v4l2_device

2009-12-05T20:40:19+00:00

Add v4l2_subdev_ir_ops and IR notify defines for v4l2_device.  This change
is specifically needed at this time to support the integrated IR controller in
the CX2388[58] chips.

Signed-off-by: Andy Walls 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB (12547): v4l2-subdev.h: Add g/s_modulator callbacks to subdev api

2009-09-12T15:19:17+00:00

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

V4L/DVB (12158): v4l: add cropping prototypes to struct v4l2_subdev_video_ops

2009-09-12T15:17:15+00:00

Add g_crop, s_crop and cropcap methods to video v4l2-subdev operations.

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

V4L/DVB (12125): v4l2: add new s_config subdev ops and v4l2_i2c_new_subdev_cfg/board calls

2009-06-23T06:15:47+00:00

Add a new s_config core ops call: this is called with the irq and platform
data to be used to initialize the subdev.

Added new v4l2_i2c_new_subdev_cfg and v4l2_i2c_new_subdev_board calls
that allows you to pass these new arguments.

The existing v4l2_i2c_new_subdev functions were modified to also call
s_config.

In the future the existing v4l2_i2c_new_subdev functions will be replaced
by a single v4l2_i2c_new_subdev function similar to v4l2_i2c_new_subdev_cfg
but without the irq and platform_data arguments.

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