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[media] s5p-tv: add dv_timings support for mixer_video 

This just adds dv_timings support without modifying existing dv_preset
support.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Tested-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Acked-by: Tomasz Stanislawski <t.stanislaws@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil 2013-03-04 09:30:48 -03:00 committed by Mauro Carvalho Chehab
parent 5efb54b2b7
commit 8e42bf033e
1 changed files with 80 additions and 0 deletions
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80
drivers/media/platform/s5p-tv/mixer_video.c
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@ -559,6 +559,79 @@ static int mxr_g_dv_preset(struct file *file, void *fh,
return ret ? -EINVAL : 0;
}
static int mxr_enum_dv_timings(struct file *file, void *fh,
struct v4l2_enum_dv_timings *timings)
{
struct mxr_layer *layer = video_drvdata(file);
struct mxr_device *mdev = layer->mdev;
int ret;
/* lock protects from changing sd_out */
mutex_lock(&mdev->mutex);
ret = v4l2_subdev_call(to_outsd(mdev), video, enum_dv_timings, timings);
mutex_unlock(&mdev->mutex);
return ret ? -EINVAL : 0;
}
static int mxr_s_dv_timings(struct file *file, void *fh,
struct v4l2_dv_timings *timings)
{
struct mxr_layer *layer = video_drvdata(file);
struct mxr_device *mdev = layer->mdev;
int ret;
/* lock protects from changing sd_out */
mutex_lock(&mdev->mutex);
/* timings change cannot be done while there is an entity
* dependant on output configuration
*/
if (mdev->n_output > 0) {
mutex_unlock(&mdev->mutex);
return -EBUSY;
}
ret = v4l2_subdev_call(to_outsd(mdev), video, s_dv_timings, timings);
mutex_unlock(&mdev->mutex);
mxr_layer_update_output(layer);
/* any failure should return EINVAL according to V4L2 doc */
return ret ? -EINVAL : 0;
}
static int mxr_g_dv_timings(struct file *file, void *fh,
struct v4l2_dv_timings *timings)
{
struct mxr_layer *layer = video_drvdata(file);
struct mxr_device *mdev = layer->mdev;
int ret;
/* lock protects from changing sd_out */
mutex_lock(&mdev->mutex);
ret = v4l2_subdev_call(to_outsd(mdev), video, g_dv_timings, timings);
mutex_unlock(&mdev->mutex);
return ret ? -EINVAL : 0;
}
static int mxr_dv_timings_cap(struct file *file, void *fh,
struct v4l2_dv_timings_cap *cap)
{
struct mxr_layer *layer = video_drvdata(file);
struct mxr_device *mdev = layer->mdev;
int ret;
/* lock protects from changing sd_out */
mutex_lock(&mdev->mutex);
ret = v4l2_subdev_call(to_outsd(mdev), video, dv_timings_cap, cap);
mutex_unlock(&mdev->mutex);
return ret ? -EINVAL : 0;
}
static int mxr_s_std(struct file *file, void *fh, v4l2_std_id *norm)
{
struct mxr_layer *layer = video_drvdata(file);
@ -618,6 +691,8 @@ static int mxr_enum_output(struct file *file, void *fh, struct v4l2_output *a)
a->capabilities = 0;
if (sd->ops->video && sd->ops->video->s_dv_preset)
a->capabilities |= V4L2_OUT_CAP_PRESETS;
if (sd->ops->video && sd->ops->video->s_dv_timings)
a->capabilities |= V4L2_OUT_CAP_DV_TIMINGS;
if (sd->ops->video && sd->ops->video->s_std_output)
a->capabilities |= V4L2_OUT_CAP_STD;
a->type = V4L2_OUTPUT_TYPE_ANALOG;
@ -742,6 +817,11 @@ static const struct v4l2_ioctl_ops mxr_ioctl_ops = {
.vidioc_enum_dv_presets = mxr_enum_dv_presets,
.vidioc_s_dv_preset = mxr_s_dv_preset,
.vidioc_g_dv_preset = mxr_g_dv_preset,
/* DV Timings functions */
.vidioc_enum_dv_timings = mxr_enum_dv_timings,
.vidioc_s_dv_timings = mxr_s_dv_timings,
.vidioc_g_dv_timings = mxr_g_dv_timings,
.vidioc_dv_timings_cap = mxr_dv_timings_cap,
/* analog TV standard functions */
.vidioc_s_std = mxr_s_std,
.vidioc_g_std = mxr_g_std,