linux-toradex.git/drivers/media/video/mx3_camera.c, branch v3.0.72

[media] V4L: soc-camera: a missing mediabus code -> fourcc translation is not critical

2011-05-20T15:06:46+00:00

soc_mbus_get_fmtdesc() returning NULL means only, that no standard
mediabus code -> fourcc conversion is known, this shouldn't be treated
as an error by drivers.

Signed-off-by: Guennadi Liakhovetski 
Signed-off-by: Mauro Carvalho Chehab

[media] V4L: soc-camera: add a new packing for YUV 4:2:0 type formats

2011-05-20T15:05:08+00:00

12-bit formats, similar to YUV 4:2:0 occupy 3 bytes for each two pixels
and cannot be described by any of the existing SOC_MBUS_PACKING_* macros.
This patch adds a new one SOC_MBUS_PACKING_1_5X8 to describe such
formats and extends soc_mbus_samples_per_pixel() to support it.

Signed-off-by: Guennadi Liakhovetski 
Signed-off-by: Mauro Carvalho Chehab

[media] V4L: mx3_camera: implement .stop_streaming()

2011-05-20T14:52:53+00:00

The .stop_streaming() videobuf2 operation has to be implemented to
guarantee, that video buffers are not written to after a STREAMOFF.

Signed-off-by: Guennadi Liakhovetski 
Signed-off-by: Mauro Carvalho Chehab

[media] V4L: mx3_camera: convert to videobuf2

2011-03-21T23:32:15+00:00

Now that soc-camera supports videobuf API v1 and v2, camera-host drivers
can be converted to videobuf2 individually. This patch converts the
mx3_camera driver.

Signed-off-by: Guennadi Liakhovetski 
Signed-off-by: Mauro Carvalho Chehab

[media] V4L: mx3_camera: fix capture issues for non 8-bit per pixel formats

2011-03-21T23:32:14+00:00

If the camera was set to output formats like RGB565 YUYV or SBGGR10,
the resulting image was scrambled due to erroneous interpretations of
horizontal parameter's units.

This patch in fourcc_to_ipu_pix, eliminate also the pixel formats mappings
that, first are not used within mainline code and second, standing at
the datasheets, they will not work properly:

The IPU internal bus support only the following data formatting
(44.1.1.3 Data Flows and Formats):
 1 YUV 4:4:4 or RGB-8 bits per color component
 2 YUV 4:4:4 or RGB-10 bits per color component
 3 Generic data (from sensor to the system memory only)

And format conversions are done:
 - from memory: unpacking from other formats to IPU supported ones
 - to memory: packing in the inverse order.

So, assigning a packing/unpacking strategy to the IPU for those formats
will produce a packing to memory and not the inverse.

Signed-off-by: Alberto Panizzo 
Signed-off-by: Guennadi Liakhovetski 
Signed-off-by: Mauro Carvalho Chehab

[media] V4L: mx3_camera: correct 'sizeimage' value reporting

2011-03-21T23:32:14+00:00

The 'pix->width' field may be updated in mx3_camera_set_fmt() to
fulfill the IPU stride line alignment requirements. If this update
takes place, the 'fmt.pix.sizeimage' field in the struct v4l2_format
stucture returned by VIDIOC_S_FMT is wrong. We need to update the
'pix->sizeimage' field in the mx3_camera_set_fmt() function to fix
this issue.

Signed-off-by: Anatolij Gustschin 
Signed-off-by: Guennadi Liakhovetski 
Signed-off-by: Mauro Carvalho Chehab

[media] v4l: soc-camera: switch to .unlocked_ioctl

2010-12-31T00:29:26+00:00

Use the V4L mutex infrastructure in soc-camera core and drivers and switch to
.unlocked_ioctl.

Signed-off-by: Guennadi Liakhovetski 
Signed-off-by: Mauro Carvalho Chehab

[media] drivers/media: Use vzalloc

2010-12-29T10:16:44+00:00

Signed-off-by: Joe Perches 
Signed-off-by: Mauro Carvalho Chehab

[media] ARM mx3_camera: check for DMA engine type

2010-11-09T17:07:28+00:00

We have two dma engines in MX3 systems: The IPU and the SDMA
engine. We have to check if we got a channel from the correct
engine before proceeding with a channel.

Signed-off-by: Sascha Hauer 
Cc: Guennadi Liakhovetski 
Signed-off-by: Guennadi Liakhovetski 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: videobuf: add ext_lock argument to the queue init functions (part 2)

2010-10-21T03:06:19+00:00

Missed a few init functions on non-Intel platforms the first time :-(

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