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[media] SoC Camera: add support for g_parm / s_parm operations 

This patch adds support for g_parm / s_parm operations to the SoC Camera
framework. It is usefull for checking/setting camera frame rate.

Example usage can be found in the previous patch from this series,
"SoC Camera: add driver for OV6650 sensor".

Created and tested against linux-2.6.36-rc3 on Amstrad Delta.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl>
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Janusz Krzysztofik 2010-09-10 22:26:16 -03:00 committed by Mauro Carvalho Chehab
parent 2f6e240479
commit 06e17821b5
1 changed files with 18 additions and 0 deletions
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18
drivers/media/video/soc_camera.c
View File

@ -1146,6 +1146,20 @@ static int default_s_crop(struct soc_camera_device *icd, struct v4l2_crop *a)
return v4l2_subdev_call(sd, video, s_crop, a);
}
static int default_g_parm(struct soc_camera_device *icd,
struct v4l2_streamparm *parm)
{
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
return v4l2_subdev_call(sd, video, g_parm, parm);
}
static int default_s_parm(struct soc_camera_device *icd,
struct v4l2_streamparm *parm)
{
struct v4l2_subdev *sd = soc_camera_to_subdev(icd);
return v4l2_subdev_call(sd, video, s_parm, parm);
}
static void soc_camera_device_init(struct device *dev, void *pdata)
{
dev->platform_data = pdata;
@ -1177,6 +1191,10 @@ int soc_camera_host_register(struct soc_camera_host *ici)
ici->ops->get_crop = default_g_crop;
if (!ici->ops->cropcap)
ici->ops->cropcap = default_cropcap;
if (!ici->ops->set_parm)
ici->ops->set_parm = default_s_parm;
if (!ici->ops->get_parm)
ici->ops->get_parm = default_g_parm;
mutex_lock(&list_lock);
list_for_each_entry(ix, &hosts, list) {