[media] media: rcar-vin: add DV timings support

Adds ioctls DV_TIMINGS_CAP, ENUM_DV_TIMINGS, G_DV_TIMINGS, S_DV_TIMINGS,
and QUERY_DV_TIMINGS.

Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>

diff --git a/drivers/media/platform/rcar-vin/rcar-v4l2.c b/drivers/media/platform/rcar-vin/rcar-v4l2.c
index 3788f8a5f856768edcfd292cabfa5a33148ccd04..10a5c107e8b9b6ec28837d781e6eb5e168e3e92e 100644 (file)
--- a/drivers/media/platform/rcar-vin/rcar-v4l2.c
+++ b/drivers/media/platform/rcar-vin/rcar-v4l2.c
@@ -400,6 +400,10 @@ static int rvin_enum_input(struct file *file, void *priv,
 
        i->type = V4L2_INPUT_TYPE_CAMERA;
        i->std = vin->vdev.tvnorms;
+
+       if (v4l2_subdev_has_op(sd, pad, dv_timings_cap))
+               i->capabilities = V4L2_IN_CAP_DV_TIMINGS;
+
        strlcpy(i->name, "Camera", sizeof(i->name));
 
        return 0;
@@ -478,6 +482,78 @@ static int rvin_subscribe_event(struct v4l2_fh *fh,
        return v4l2_ctrl_subscribe_event(fh, sub);
 }
 
+static int rvin_enum_dv_timings(struct file *file, void *priv_fh,
+                                   struct v4l2_enum_dv_timings *timings)
+{
+       struct rvin_dev *vin = video_drvdata(file);
+       struct v4l2_subdev *sd = vin_to_source(vin);
+       int pad, ret;
+
+       pad = timings->pad;
+       timings->pad = vin->src_pad_idx;
+
+       ret = v4l2_subdev_call(sd, pad, enum_dv_timings, timings);
+
+       timings->pad = pad;
+
+       return ret;
+}
+
+static int rvin_s_dv_timings(struct file *file, void *priv_fh,
+                                   struct v4l2_dv_timings *timings)
+{
+       struct rvin_dev *vin = video_drvdata(file);
+       struct v4l2_subdev *sd = vin_to_source(vin);
+       int err;
+
+       err = v4l2_subdev_call(sd,
+                       video, s_dv_timings, timings);
+       if (!err) {
+               vin->source.width = timings->bt.width;
+               vin->source.height = timings->bt.height;
+               vin->format.width = timings->bt.width;
+               vin->format.height = timings->bt.height;
+       }
+       return err;
+}
+
+static int rvin_g_dv_timings(struct file *file, void *priv_fh,
+                                   struct v4l2_dv_timings *timings)
+{
+       struct rvin_dev *vin = video_drvdata(file);
+       struct v4l2_subdev *sd = vin_to_source(vin);
+
+       return v4l2_subdev_call(sd,
+                       video, g_dv_timings, timings);
+}
+
+static int rvin_query_dv_timings(struct file *file, void *priv_fh,
+                                   struct v4l2_dv_timings *timings)
+{
+       struct rvin_dev *vin = video_drvdata(file);
+       struct v4l2_subdev *sd = vin_to_source(vin);
+
+       return v4l2_subdev_call(sd,
+                       video, query_dv_timings, timings);
+}
+
+static int rvin_dv_timings_cap(struct file *file, void *priv_fh,
+                                   struct v4l2_dv_timings_cap *cap)
+{
+       struct rvin_dev *vin = video_drvdata(file);
+       struct v4l2_subdev *sd = vin_to_source(vin);
+       int pad, ret;
+
+       pad = cap->pad;
+       cap->pad = vin->src_pad_idx;
+
+       ret = v4l2_subdev_call(sd, pad, dv_timings_cap, cap);
+
+       cap->pad = pad;
+
+       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,
@@ -494,6 +570,12 @@ static const struct v4l2_ioctl_ops rvin_ioctl_ops = {
        .vidioc_g_input                 = rvin_g_input,
        .vidioc_s_input                 = rvin_s_input,
 
+       .vidioc_dv_timings_cap          = rvin_dv_timings_cap,
+       .vidioc_enum_dv_timings         = rvin_enum_dv_timings,
+       .vidioc_g_dv_timings            = rvin_g_dv_timings,
+       .vidioc_s_dv_timings            = rvin_s_dv_timings,
+       .vidioc_query_dv_timings        = rvin_query_dv_timings,
+
        .vidioc_querystd                = rvin_querystd,
        .vidioc_g_std                   = rvin_g_std,
        .vidioc_s_std                   = rvin_s_std,