diff options
| author |   Rishikesh Donadkar <r-donadkar@ti.com> | 2024-11-21 19:27:53 +0530 |
|---|---|---|
| committer |   Xulin Sun <xulin.sun@windriver.com> | 2025-03-11 16:59:46 +0800 |
| commit | 2e2c9a25140690d0c7f14ff3affad115a4183d4e (patch) | |
| tree | a14fbb2ed177ef3fa928d971395f8cae71b1b972 | |
| parent | f417c5c9a806073b8af854f2684a1ca9db8b83ed (diff) | |
| download | linux-yocto-2e2c9a25140690d0c7f14ff3affad115a4183d4e.tar.gz | |
media: ov5640: Add hook to pass frame descriptor
commit 7e9ef6bcb65df25576a049b58dcd206626874e2a from
git://git.ti.com/ti-linux-kernel/ti-linux-kernel.git
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>
Signed-off-by: Xulin Sun <xulin.sun@windriver.com>
| -rw-r--r-- | drivers/media/i2c/ov5640.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/media/i2c/ov5640.c b/drivers/media/i2c/ov5640.c index 9b56fc1cd3d7..2251bbc7cccd 100644 --- a/drivers/media/i2c/ov5640.c +++ b/drivers/media/i2c/ov5640.c @@ -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 @@ -3765,6 +3766,45 @@ 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, @@ -3785,6 +3825,7 @@ 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 = { |