From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
This receiver now supports reading the IT content type of the incoming
video.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
drivers/media/i2c/adv7842.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c
index 5fbb788..5e80849 100644
--- a/drivers/media/i2c/adv7842.c
+++ b/drivers/media/i2c/adv7842.c
@@ -1359,6 +1359,19 @@ static int adv7842_s_ctrl(struct v4l2_ctrl *ctrl)
return -EINVAL;
}
+static int adv7842_g_volatile_ctrl(struct v4l2_ctrl *ctrl)
+{
+ struct v4l2_subdev *sd = to_sd(ctrl);
+
+ if (ctrl->id == V4L2_CID_DV_RX_CONTENT_TYPE) {
+ ctrl->val = V4L2_DV_CONTENT_TYPE_NO_ITC;
+ if ((io_read(sd, 0x60) & 1) && (infoframe_read(sd, 0x03) & 0x80))
+ ctrl->val = (infoframe_read(sd, 0x05) >> 4) & 3;
+ return 0;
+ }
+ return -EINVAL;
+}
+
static inline bool no_power(struct v4l2_subdev *sd)
{
return io_read(sd, 0x0c) & 0x24;
@@ -3022,6 +3035,7 @@ static int adv7842_subscribe_event(struct v4l2_subdev *sd,
static const struct v4l2_ctrl_ops adv7842_ctrl_ops = {
.s_ctrl = adv7842_s_ctrl,
+ .g_volatile_ctrl = adv7842_g_volatile_ctrl,
};
static const struct v4l2_subdev_core_ops adv7842_core_ops = {
@@ -3196,6 +3210,7 @@ static int adv7842_probe(struct i2c_client *client,
V4L2_DV_BT_CEA_640X480P59_94;
struct adv7842_platform_data *pdata = client->dev.platform_data;
struct v4l2_ctrl_handler *hdl;
+ struct v4l2_ctrl *ctrl;
struct v4l2_subdev *sd;
u16 rev;
int err;
@@ -3261,6 +3276,11 @@ static int adv7842_probe(struct i2c_client *client,
V4L2_CID_SATURATION, 0, 255, 1, 128);
v4l2_ctrl_new_std(hdl, &adv7842_ctrl_ops,
V4L2_CID_HUE, 0, 128, 1, 0);
+ ctrl = v4l2_ctrl_new_std_menu(hdl, &adv7842_ctrl_ops,
+ V4L2_CID_DV_RX_CONTENT_TYPE, V4L2_DV_CONTENT_TYPE_NO_ITC,
+ 0, V4L2_DV_CONTENT_TYPE_NO_ITC);
+ if (ctrl)
+ ctrl->flags |= V4L2_CTRL_FLAG_VOLATILE;
/* custom controls */
state->detect_tx_5v_ctrl = v4l2_ctrl_new_std(hdl, NULL,
--
2.7.0.rc3
--
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