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media: atomisp-ov2680: implement enum frame intervals

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Allow the sensor to report the per-resolution frame interval.

It should be noticed that, despite the ov2680 datasheet says
that, for resolutions <= 1280x720, the sensor supports 60fps,
the data at ov2680.h tells otherwise, limiting it to 30fps.

Not sure yet if this is a limitation of atomisp or if it is
just because the tables are incorrect.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
This commit is contained in:
Mauro Carvalho Chehab 2021-11-11 10:15:44 +00:00
parent dd8e6adb9b
commit d45d97873b
1 changed files with 21 additions and 0 deletions

21
drivers/staging/media/atomisp/i2c/atomisp-ov2680.c

@ -1075,6 +1075,26 @@ static int ov2680_enum_frame_size(struct v4l2_subdev *sd,
return 0;
}
static int ov2680_enum_frame_interval(struct v4l2_subdev *sd,
struct v4l2_subdev_state *sd_state,
struct v4l2_subdev_frame_interval_enum *fie)
{
struct v4l2_fract fract;
if (fie->index >= N_RES_PREVIEW ||
fie->width > ov2680_res_preview[0].width ||
fie->height > ov2680_res_preview[0].height ||
fie->which > V4L2_SUBDEV_FORMAT_ACTIVE)
return -EINVAL;
fract.denominator = ov2680_res_preview[fie->index].fps;
fract.numerator = 1;
fie->interval = fract;
return 0;
}
static int ov2680_g_skip_frames(struct v4l2_subdev *sd, u32 *frames)
{
struct ov2680_device *dev = to_ov2680_sensor(sd);
@ -1103,6 +1123,7 @@ static const struct v4l2_subdev_core_ops ov2680_core_ops = {
static const struct v4l2_subdev_pad_ops ov2680_pad_ops = {
.enum_mbus_code = ov2680_enum_mbus_code,
.enum_frame_size = ov2680_enum_frame_size,
.enum_frame_interval = ov2680_enum_frame_interval,
.get_fmt = ov2680_get_fmt,
.set_fmt = ov2680_set_fmt,
};