Implement the get_selection pad operation for the OV5640 sensor driver.
The supported targets report the sensor's native size, the active pixel
array size and the analog crop rectangle from which the image is
produced.
Signed-off-by: Jacopo Mondi <jacopo@xxxxxxxxxx>
---
drivers/media/i2c/ov5640.c | 51 ++++++++++++++++++++++++++++++++++++++
1 file changed, 51 insertions(+)
diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c
index 8b90fab26d16..4ebb76d95849 100644
--- a/drivers/media/i2c/ov5640.c
+++ b/drivers/media/i2c/ov5640.c
@@ -35,6 +35,13 @@
#define OV5640_MIN_VBLANK 24
#define OV5640_MAX_VTS 1968
+#define OV5640_NATIVE_WIDTH 2624
+#define OV5640_NATIVE_HEIGHT 1964
+#define OV5640_PIXEL_ARRAY_TOP 14
+#define OV5640_PIXEL_ARRAY_LEFT 16
+#define OV5640_PIXEL_ARRAY_WIDTH 2592
+#define OV5640_PIXEL_ARRAY_HEIGHT 1944
+
#define OV5640_DEFAULT_SLAVE_ID 0x3c
#define OV5640_LINK_RATE_MAX 490000000U
@@ -2693,6 +2700,43 @@ static int ov5640_set_fmt(struct v4l2_subdev *sd,
return ret;
}
+static int ov5640_get_selection(struct v4l2_subdev *sd,
+ struct v4l2_subdev_state *sd_state,
+ struct v4l2_subdev_selection *sel)
+{
+ struct ov5640_dev *sensor = to_ov5640_dev(sd);
+ const struct ov5640_mode_info *mode = sensor->current_mode;
+
+ switch (sel->target) {
+ case V4L2_SEL_TGT_CROP: {
+ mutex_lock(&sensor->lock);
+ sel->r = mode->analog_crop;
+ mutex_unlock(&sensor->lock);
+
+ return 0;
+ }
+
+ case V4L2_SEL_TGT_NATIVE_SIZE:
+ case V4L2_SEL_TGT_CROP_BOUNDS:
+ sel->r.top = 0;
+ sel->r.left = 0;
+ sel->r.width = OV5640_NATIVE_WIDTH;
+ sel->r.height = OV5640_NATIVE_HEIGHT;
+
+ return 0;
+
+ case V4L2_SEL_TGT_CROP_DEFAULT:
+ sel->r.top = OV5640_PIXEL_ARRAY_TOP;
+ sel->r.left = OV5640_PIXEL_ARRAY_LEFT;
+ sel->r.width = OV5640_PIXEL_ARRAY_WIDTH;
+ sel->r.height = OV5640_PIXEL_ARRAY_HEIGHT;
+
+ return 0;
+ }
+
+ return -EINVAL;
+}
+
static int ov5640_set_framefmt(struct ov5640_dev *sensor,
struct v4l2_mbus_framefmt *format)
{
@@ -3383,9 +3427,15 @@ static int ov5640_init_cfg(struct v4l2_subdev *sd,
struct v4l2_subdev_state *state)
{
struct v4l2_mbus_framefmt *fmt = v4l2_subdev_get_try_format(sd, state, 0);
+ struct v4l2_rect *crop = v4l2_subdev_get_try_crop(sd, state, 0);
*fmt = ov5640_default_fmt;
+ crop->left = OV5640_PIXEL_ARRAY_LEFT;
+ crop->top = OV5640_PIXEL_ARRAY_TOP;
+ crop->width = OV5640_PIXEL_ARRAY_WIDTH;
+ crop->height = OV5640_PIXEL_ARRAY_HEIGHT;
+
return 0;
}
@@ -3407,6 +3457,7 @@ static const struct v4l2_subdev_pad_ops ov5640_pad_ops = {
.enum_mbus_code = ov5640_enum_mbus_code,
.get_fmt = ov5640_get_fmt,
.set_fmt = ov5640_set_fmt,
+ .get_selection = ov5640_get_selection,
.enum_frame_size = ov5640_enum_frame_size,
.enum_frame_interval = ov5640_enum_frame_interval,
};
--
2.35.0
