linux-stable.git/include/media/soc_camera.h, branch v3.7

[media] v4l2: make vidioc_s_crop const

2012-09-26T14:02:25+00:00

Write-only ioctls should have a const argument in the ioctl op.
Do this conversion for vidioc_s_crop.
Adding const for write-only ioctls was decided during the 2012 Media Workshop.

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

[media] V4L: soc-camera: add selection API host operations

2012-08-15T20:37:39+00:00

Add .get_selection() and .set_selection() soc-camera host driver
operations. Additionally check, that the user is not trying to change the
output sizes during a running capture.

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

[media] soc-camera: Add and use soc_camera_power_[on|off]() helper functions

2012-08-15T20:03:29+00:00

Instead of forcing all soc-camera drivers to go through the mid-layer to
handle power management, create soc_camera_power_[on|off]() functions
that can be called from the subdev .s_power() operation to manage
regulators and platform-specific power handling. This allows non
soc-camera hosts to use soc-camera-aware clients.

Signed-off-by: Laurent Pinchart 
[g.liakhovetski@gmx.de: fix compile breakage]
Signed-off-by: Guennadi Liakhovetski 
Signed-off-by: Mauro Carvalho Chehab

[media] soc-camera: Support user-configurable line stride

2012-05-15T19:12:54+00:00

Add a capabilities field to the soc_camera_host structure to flag hosts
that support user-configurable line strides. soc_camera_try_fmt() then
passes the user-provided bytesperline and sizeimage format fields to
such hosts, and expects the host to check (and fix if needed) the
values.

Signed-off-by: Laurent Pinchart 
[g.liakhovetski@gmx.de: fix a typo in mx2_camera.c]
Signed-off-by: Guennadi Liakhovetski 
Signed-off-by: Mauro Carvalho Chehab

[media] V4L: soc-camera: (cosmetic) use a more explicit name for a host handler

2012-05-15T11:52:49+00:00

Use "enum_framesizes" instead of "enum_fsizes" to more precisely follow
the name of the respective ioctl().

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

[media] V4L: soc-camera: protect hosts during probing from overzealous user-space

2012-04-26T14:30:12+00:00

If multiple clients are registered on a single camera host interface,
the user-space hot-plug software can try to access the one, that probed
first, before probing of the second one has completed. This can be
handled by individual host drivers, but it is even better to hold back
the user-space until all the probing on this host has completed. This
fixes a race on ecovec with two clients registered on the CEU1 host, which
otherwise triggers a BUG() in sh_mobile_ceu_remove_device().

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

[media] soc-camera: remove redundant parameter from .set_bus_param()

2012-01-06T13:00:23+00:00

The "pixfmt" parameter of the struct soc_camera_host_ops::set_bus_param()
method is redundant, because at the time, when this method is called,
pixfmt is guaranteed to be equal to icd->current_fmt->host_fmt->fourcc.
Remove this parameter and update all drivers accordingly.

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

[media] V4L: soc-camera: fix compiler warnings on 64-bit platforms

2011-12-11T11:34:00+00:00

On 64-bit platforms assigning a pointer to a 32-bit variable causes a
compiler warning and cannot actually work. Soc-camera currently doesn't
support any 64-bit systems, but such platforms can be added in the
and in any case compiler warnings should be avoided.

Signed-off-by: Guennadi Liakhovetski 
Acked-by: Janusz Krzysztofik 
Signed-off-by: Mauro Carvalho Chehab

[media] V4L: soc-camera: make (almost) all client drivers re-usable outside of the framework

2011-11-03T20:29:03+00:00

The most important change in this patch is direct linking to struct
soc_camera_link via the client->dev.platform_data pointer. This makes most
of the soc-camera client drivers also usable outside of the soc-camera
framework. After this change all what is needed for these drivers to
function are inclusions of soc-camera headers for some convenience macros,
suitably configured platform data, which is anyway always required, and
loaded soc-camera core module for library functions. If desired, these
library functions can be made generic in the future and moved to a more
neutral location.

The only two client drivers, that still depend on soc-camera are:

mt9t031: it uses struct video_device for its PM. Since no hardware is
available, alternative methods cannot be tested.

ov6650: it uses struct soc_camera_device to pass its sense data back to
the bridge driver. A generic v4l2-subdevice approach should be developed
to perform this.

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

[media] V4L: mt9m001, mt9v022: use internally cached pixel code

2011-11-03T20:28:59+00:00

Using the internally cached pixel code, instead of the one, provided by
the soc-camera, removes one more use of struct soc_camera_device in these
drivers. Also remove the no longer needed soc_camera_from_i2c() inline
function.

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