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[media] rcar-vin: implement EDID control ioctls

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Adds G_EDID and S_EDID.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Ulrich Hecht 2016-09-15 14:33:23 -03:00 committed by Mauro Carvalho Chehab
parent 474cde669d
commit 8a2192be4e
2 changed files with 50 additions and 0 deletions
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48
drivers/media/platform/rcar-vin/rcar-v4l2.c
View File

@ -613,6 +613,44 @@ static int rvin_dv_timings_cap(struct file *file, void *priv_fh,
return ret;
}
static int rvin_g_edid(struct file *file, void *fh, struct v4l2_edid *edid)
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
int input, ret;
if (edid->pad)
return -EINVAL;
input = edid->pad;
edid->pad = vin->sink_pad_idx;
ret = v4l2_subdev_call(sd, pad, get_edid, edid);
edid->pad = input;
return ret;
}
static int rvin_s_edid(struct file *file, void *fh, struct v4l2_edid *edid)
{
struct rvin_dev *vin = video_drvdata(file);
struct v4l2_subdev *sd = vin_to_source(vin);
int input, ret;
if (edid->pad)
return -EINVAL;
input = edid->pad;
edid->pad = vin->sink_pad_idx;
ret = v4l2_subdev_call(sd, pad, set_edid, edid);
edid->pad = input;
return ret;
}
static const struct v4l2_ioctl_ops rvin_ioctl_ops = {
.vidioc_querycap = rvin_querycap,
.vidioc_try_fmt_vid_cap = rvin_try_fmt_vid_cap,
@ -635,6 +673,9 @@ static const struct v4l2_ioctl_ops rvin_ioctl_ops = {
.vidioc_s_dv_timings = rvin_s_dv_timings,
.vidioc_query_dv_timings = rvin_query_dv_timings,
.vidioc_g_edid = rvin_g_edid,
.vidioc_s_edid = rvin_s_edid,
.vidioc_querystd = rvin_querystd,
.vidioc_g_std = rvin_g_std,
.vidioc_s_std = rvin_s_std,
@ -883,6 +924,13 @@ int rvin_v4l2_probe(struct rvin_dev *vin)
vin->src_pad_idx = pad_idx;
vin->sink_pad_idx = 0;
for (pad_idx = 0; pad_idx < sd->entity.num_pads; pad_idx++)
if (sd->entity.pads[pad_idx].flags == MEDIA_PAD_FL_SINK) {
vin->sink_pad_idx = pad_idx;
break;
}
vin->format.pixelformat = RVIN_DEFAULT_FORMAT;
rvin_reset_format(vin);

2
drivers/media/platform/rcar-vin/rcar-vin.h
View File

@ -92,6 +92,7 @@ struct rvin_graph_entity {
* @vdev: V4L2 video device associated with VIN
* @v4l2_dev: V4L2 device
* @src_pad_idx: source pad index for media controller drivers
* @sink_pad_idx: sink pad index for media controller drivers
* @ctrl_handler: V4L2 control handler
* @notifier: V4L2 asynchronous subdevs notifier
* @digital: entity in the DT for local digital subdevice
@ -121,6 +122,7 @@ struct rvin_dev {
struct video_device vdev;
struct v4l2_device v4l2_dev;
int src_pad_idx;
int sink_pad_idx;
struct v4l2_ctrl_handler ctrl_handler;
struct v4l2_async_notifier notifier;
struct rvin_graph_entity digital;