TWxSoftware/twx-linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

media: ov5640: Add hook to pass frame descriptor

Browse Source 
The .get_frame_desc hook is called to propagate information
to the downstream element in the camera pipeline. Support it for
OV5640.

Signed-off-by: Rishikesh Donadkar <r-donadkar@ti.com>
This commit is contained in:
Rishikesh Donadkar
2024-11-21 19:27:53 +05:30
committed by Praneeth Bajjuri
parent 553a3e62c9
commit 7e9ef6bcb6
1 changed files with 41 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/media/i2c/ov5640.c
+41
View File
@@ -25,6 +25,7 @@
#include <media/v4l2-event.h>
#include <media/v4l2-fwnode.h>
#include <media/v4l2-subdev.h>
#include <media/mipi-csi2.h>
/* min/typical/max system clock (xclk) frequencies */
#define OV5640_XCLK_MIN 6000000
@@ -3764,6 +3765,45 @@ static int ov5640_init_cfg(struct v4l2_subdev *sd,
return 0;
}
static int ov5640_get_frame_desc(struct v4l2_subdev *sd, unsigned int pad,
struct v4l2_mbus_frame_desc *fd)
{
struct ov5640_dev *sensor = to_ov5640_dev(sd);
u32 bpp;
int ret = 0;
if (pad != 0)
return -EINVAL;
mutex_lock(&sensor->lock);
memset(fd, 0, sizeof(*fd));
fd->type = V4L2_MBUS_FRAME_DESC_TYPE_CSI2;
/* pixel stream */
bpp = ov5640_code_to_bpp(sensor, sensor->fmt.code);
fd->entry[fd->num_entries].stream = 0;
fd->entry[fd->num_entries].flags = V4L2_MBUS_FRAME_DESC_FL_LEN_MAX;
fd->entry[fd->num_entries].length =
(sensor->current_mode->width
* sensor->current_mode->height * bpp) / 8;
fd->entry[fd->num_entries].pixelcode = sensor->fmt.code;
fd->entry[fd->num_entries].bus.csi2.vc = 0;
if (sensor->fmt.code == MEDIA_BUS_FMT_SRGGB8_1X8)
fd->entry[fd->num_entries].bus.csi2.dt = 0x2a; /* SRGGB8 */
else
fd->entry[fd->num_entries].bus.csi2.dt = MIPI_CSI2_DT_YUV422_8B;
fd->num_entries++;
mutex_unlock(&sensor->lock);
return ret;
}
static const struct v4l2_subdev_core_ops ov5640_core_ops = {
.log_status = v4l2_ctrl_subdev_log_status,
.subscribe_event = v4l2_ctrl_subdev_subscribe_event,
@@ -3784,6 +3824,7 @@ static const struct v4l2_subdev_pad_ops ov5640_pad_ops = {
.get_selection = ov5640_get_selection,
.enum_frame_size = ov5640_enum_frame_size,
.enum_frame_interval = ov5640_enum_frame_interval,
.get_frame_desc = ov5640_get_frame_desc,
};
static const struct v4l2_subdev_ops ov5640_subdev_ops = {