linux-toradex.git/include/media/v4l2-ctrls.h, branch v3.18.3

[media] v4l2-ctrls: add new RDS TX controls

2014-07-25T22:26:14+00:00

The si4713 supports several RDS features not yet implemented in the driver.

This patch adds the missing RDS functionality to the list of RDS controls.

The ALT_FREQS control is a compound control containing an array of up
to 25 (the maximum according to the RDS standard) frequencies. To support
that the V4L2_CTRL_TYPE_U32 was added.

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

[media] v4l2-ctrls: add support for setting string controls

2014-07-25T22:18:51+00:00

Rather than always having to use a v4l2_ext_control struct to set
a control value from within a driver, switch to just setting the
new value. This is faster and it makes it possible to set more
complex types such as a string control as is added by this
patch.

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

[media] v4l: ctrls: Unlocked variants of v4l2_ctrl_s_ctrl{,_int64}()

2014-07-21T23:10:48+00:00

Implement unlocked variants of v4l2_ctrl_s_ctrl() and
v4l2_ctrl_s_ctrl_int64(). As drivers need to set controls as they access
driver internal state elsewhere than in the control framework unlocked
variants of these functions become handy.

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

[media] v4l: ctrls: Provide an unlocked variant of v4l2_ctrl_modify_range()

2014-07-21T22:44:45+00:00

Drivers may use the v4l2_ctrl_modify_range() internally as part of other
operations that need to be both serialised using a driver's lock which can
also be used to serialise access to the control handler. Provide an unlocked
version of the function, __v4l2_ctrl_modify_range() which then may be used
by drivers for the purpose.

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

[media] v4l: ctrls: Move control lock/unlock above the control access functions

2014-07-21T22:43:03+00:00

The v4l2_ctrl_{,un}lock will be needed elsewhere. Define them before the
functions that perform operations on controls.

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

[media] v4l2-ctrls/videodev2.h: add u8 and u16 types

2014-07-17T14:57:25+00:00

These are needed by the upcoming patches for the motion detection
matrices.

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

[media] v4l2-ctrls: prepare for array support

2014-07-17T14:57:18+00:00

Add core support for N-dimensional arrays.

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

[media] v4l2-ctrls: prepare for array support

2014-07-17T14:57:18+00:00

Add dims, nr_of_dims and elems fields to the core control structures in preparation
for N-dimensional array support.

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

[media] v4l2-ctrls: use ptrs for all but the s32 type

2014-07-17T14:57:17+00:00

Rather than having two unions for all types just keep 'val' and
'cur.val' and use the p_cur and p_new unions to access all others.

The only reason for keeping 'val' and 'cur.val' is that it is used
all over, so converting this as well would be a huge job.

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

[media] v4l2-ctrls: compare values only once

2014-07-17T14:57:16+00:00

When setting a control the control's new value is compared to the current
value twice: once by new_to_cur(), once by cluster_changed(). Not a big
deal when dealing with simple values, but it can be a problem when dealing
with compound types or arrays. So fix this: cluster_changed() sets the
has_changed flag, which is used by new_to_cur() instead of having to do
another compare.

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