In the TRY_FMT handler the function get_scale() is called to find what the
scaler hardware will produce for a requested size.
The problem is that get_scale(struct cx231xx *dev, ..., unsigned int *vscale,
unsigned int *hscale) saves the calculated scale values into both the
pointer arguments and into dev's hscale and vscale fields. TRY_FMT shouldn't
actually change anything in the device state.
The code to in get_scale() that writes to dev->[hv]scale can just be
deleted. In all cases when dev's fields should be modified, get_scale()
was called with get_scale(dev, ..., &dev->hscale, &dev->vscale), so dev was
getting updated anyway.
This didn't actually cause a problem because nothing ever actually made use
of the hscale and vscale fields. I changed cx231xx_resolution_set() to use
those fields rather than re-calculate them with a call to get_scale().
Updating [hv]scale in cx231xx_resolution_set() isn't necessary because
every call of cx231xx_resolution_set() was already preceded by a call to
get_scale() or setting the [hv]scale fields, so they will be always be
up-to-date w.r.t. width and height.
Removing the call to get_scale() from cx231xx_resolution_set() allowed
making get_scale() a static function, which is a good thing for something
with such a short name. There is already another function with the same
name in the em28xx driver, but that one is static.
Signed-off-by: Trent Piepho <xyzzy@speakeasy.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
For specific boards, pass initialization data to ir-kbd-i2c instead
of modifying the settings after the device is initialized. This is
more efficient and easier to read.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Let card drivers probe for IR receiver devices and instantiate them if
found. Ultimately it would be better if we could stop probing
completely, but I suspect this won't be possible for all card types.
There's certainly room for cleanups. For example, some drivers are
sharing I2C adapter IDs, so they also had to share the list of I2C
addresses being probed for an IR receiver. Now that each driver
explicitly says which addresses should be probed, maybe some addresses
can be dropped from some drivers.
Also, the special cases in saa7134-i2c should probably be handled on a
per-board basis. This would be more efficient and less risky than always
probing extra addresses on all boards. I'll give it a try later.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch converts cx231xx to the new v4l2 dev/subdev, doing:
- Conversion of i2c calls to subdev calls;
- all subdev calls to call_all();
- Corrected the header file order in cx231xx.h;
- Added tuner frequency setting.
Signed-off-by: Srinivasa Deevi <srinivasa.deevi@conexant.com>
Reviewed-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
changed the pcb-config.c/h to pcb-cfg.c/h for short names.
Signed-off-by: Srinivasa Deevi <srinivasa.deevi@conexant.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Only cx231xx-video needs linux/version.h, due to KERNEL_VERSION macro,
that is used by V4L2 API.
This patch moves the KERNEL_VERSION to its proper place and starts with
0,0,1.
There are still much more to be fixed on later patches
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This patch cleans up CodingStyle on the following source files:
There are still much more to be fixed on later patches
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Trent Piepho