[PATCH 9/9] media: sun6i-isp: capture: Implement enum_framesizes

Paul Kocialkowski
2023-03-24T15:12:57Z

Report available frame sizes as a continuous range between the
hardware min/max limits.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
Co-authored-by: Adam Pigg <adam@piggz.co.uk>
Signed-off-by: Adam Pigg <adam@piggz.co.uk>
---
.../media/sunxi/sun6i-isp/sun6i_isp_capture.c | 26 +++++++++++++++++++
1 file changed, 26 insertions(+)

diff --git a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_capture.c b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_capture.c
index 5160b93b69ff..a368f90a9beb 100644
--- a/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_capture.c
+++ b/drivers/staging/media/sunxi/sun6i-isp/sun6i_isp_capture.c
@@ -487,6 +487,30 @@ static int sun6i_isp_capture_try_fmt(struct file *file, void *private,
return 0;
}

+static int
+sun6i_isp_capture_enum_framesizes(struct file *file, void *fh,
+ struct v4l2_frmsizeenum *frmsizeenum)
+{
+ const struct sun6i_isp_capture_format *format;
+
+ if (frmsizeenum->index > 0)
+ return -EINVAL;
+
+ format = sun6i_isp_capture_format_find(frmsizeenum->pixel_format);
+ if (!format)
+ return -EINVAL;
+
+ frmsizeenum->type = V4L2_FRMSIZE_TYPE_CONTINUOUS;
+ frmsizeenum->stepwise.min_width = SUN6I_ISP_CAPTURE_WIDTH_MIN;
+ frmsizeenum->stepwise.max_width = SUN6I_ISP_CAPTURE_WIDTH_MAX;
+ frmsizeenum->stepwise.min_height = SUN6I_ISP_CAPTURE_HEIGHT_MIN;
+ frmsizeenum->stepwise.max_height = SUN6I_ISP_CAPTURE_HEIGHT_MAX;
+ frmsizeenum->stepwise.step_width = 1;
+ frmsizeenum->stepwise.step_height = 1;
+
+ return 0;
+}
+
static int sun6i_isp_capture_enum_input(struct file *file, void *private,
struct v4l2_input *input)
{
@@ -524,6 +548,8 @@ static const struct v4l2_ioctl_ops sun6i_isp_capture_ioctl_ops = {
.vidioc_s_fmt_vid_cap = sun6i_isp_capture_s_fmt,
.vidioc_try_fmt_vid_cap = sun6i_isp_capture_try_fmt,

+ .vidioc_enum_framesizes = sun6i_isp_capture_enum_framesizes,
+
.vidioc_enum_input = sun6i_isp_capture_enum_input,
.vidioc_g_input = sun6i_isp_capture_g_input,
.vidioc_s_input = sun6i_isp_capture_s_input,
--
2.39.2