Implement g_parm to return the current standard's frame period.
Signed-off-by: Steve Longerbeam <steve_longerbeam@xxxxxxxxxx>
---
drivers/media/i2c/adv7180.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)
diff --git a/drivers/media/i2c/adv7180.c b/drivers/media/i2c/adv7180.c
index b3bb19f..9e40632 100644
--- a/drivers/media/i2c/adv7180.c
+++ b/drivers/media/i2c/adv7180.c
@@ -740,6 +740,27 @@ static int adv7180_g_mbus_config(struct v4l2_subdev *sd,
return 0;
}
+static int adv7180_g_parm(struct v4l2_subdev *sd, struct v4l2_streamparm *a)
+{
+ struct adv7180_state *state = to_state(sd);
+ struct v4l2_captureparm *cparm = &a->parm.capture;
+
+ if (a->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+ return -EINVAL;
+
+ memset(a, 0, sizeof(*a));
+ a->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ if (state->curr_norm & V4L2_STD_525_60) {
+ cparm->timeperframe.numerator = 1001;
+ cparm->timeperframe.denominator = 30000;
+ } else {
+ cparm->timeperframe.numerator = 1;
+ cparm->timeperframe.denominator = 25;
+ }
+
+ return 0;
+}
+
static int adv7180_cropcap(struct v4l2_subdev *sd, struct v4l2_cropcap *cropcap)
{
struct adv7180_state *state = to_state(sd);
@@ -798,6 +819,7 @@ static int adv7180_subscribe_event(struct v4l2_subdev *sd,
static const struct v4l2_subdev_video_ops adv7180_video_ops = {
.s_std = adv7180_s_std,
.g_std = adv7180_g_std,
+ .g_parm = adv7180_g_parm,
.querystd = adv7180_querystd,
.g_input_status = adv7180_g_input_status,
.s_routing = adv7180_s_routing,
--
1.9.1
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