Some sensors (like the one in Nokia N900) provide metadata in the first
couple of lines. Make that information information available to the
pipeline.
Signed-off-by: Ivaylo Dimitrov <ivo.g.dimitrov.75@xxxxxxxxx>
---
drivers/media/i2c/smiapp/smiapp-core.c | 12 ++++++++++++
drivers/media/i2c/smiapp/smiapp.h | 1 +
2 files changed, 13 insertions(+)
diff --git a/drivers/media/i2c/smiapp/smiapp-core.c b/drivers/media/i2c/smiapp/smiapp-core.c
index a215efe..3dfe387 100644
--- a/drivers/media/i2c/smiapp/smiapp-core.c
+++ b/drivers/media/i2c/smiapp/smiapp-core.c
@@ -188,6 +188,8 @@ static int smiapp_read_frame_fmt(struct smiapp_sensor *sensor)
embedded_end = 0;
}
+ sensor->image_start = image_start;
+
dev_dbg(&client->dev, "embedded data from lines %d to %d\n",
embedded_start, embedded_end);
dev_dbg(&client->dev, "image data starts at line %d\n", image_start);
@@ -2280,6 +2282,15 @@ static int smiapp_get_skip_frames(struct v4l2_subdev *subdev, u32 *frames)
return 0;
}
+static int smiapp_get_skip_top_lines(struct v4l2_subdev *subdev, u32 *lines)
+{
+ struct smiapp_sensor *sensor = to_smiapp_sensor(subdev);
+
+ *lines = sensor->image_start;
+
+ return 0;
+}
+
/* -----------------------------------------------------------------------------
* sysfs attributes
*/
@@ -2890,6 +2901,7 @@ static const struct v4l2_subdev_pad_ops smiapp_pad_ops = {
static const struct v4l2_subdev_sensor_ops smiapp_sensor_ops = {
.g_skip_frames = smiapp_get_skip_frames,
+ .g_skip_top_lines = smiapp_get_skip_top_lines,
};
static const struct v4l2_subdev_ops smiapp_ops = {
diff --git a/drivers/media/i2c/smiapp/smiapp.h b/drivers/media/i2c/smiapp/smiapp.h
index f6af0cc..c8b4ca0 100644
--- a/drivers/media/i2c/smiapp/smiapp.h
+++ b/drivers/media/i2c/smiapp/smiapp.h
@@ -217,6 +217,7 @@ struct smiapp_sensor {
u8 hvflip_inv_mask; /* H/VFLIP inversion due to sensor orientation */
u8 frame_skip;
+ u32 image_start; /* Offset to first line after metadata lines */
int power_count;
--
1.9.1
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