[PATCH v2 13/16] media: imx-pxp: Implement frame size enumeration

Michael Tretter
2023-01-13T09:57:45Z

From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Implement support for the VIDIOC_ENUM_FRAMESIZES ioctl.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
---
Changes since v1:

- Use 1 << ALIGN_*
- Pick from https://lore.kernel.org/linux-media/20230112172507.30579-1-laurent.pinchart@ideasonboard.com/
---
drivers/media/platform/nxp/imx-pxp.c | 22 ++++++++++++++++++++++
1 file changed, 22 insertions(+)

diff --git a/drivers/media/platform/nxp/imx-pxp.c b/drivers/media/platform/nxp/imx-pxp.c
index 9e2e522d9241..f34eba62f7d6 100644
--- a/drivers/media/platform/nxp/imx-pxp.c
+++ b/drivers/media/platform/nxp/imx-pxp.c
@@ -1379,6 +1379,26 @@ static int pxp_s_fmt_vid_out(struct file *file, void *priv,
return 0;
}

+static int pxp_enum_framesizes(struct file *file, void *fh,
+ struct v4l2_frmsizeenum *fsize)
+{
+ if (fsize->index > 0)
+ return -EINVAL;
+
+ if (!find_format(fsize->pixel_format))
+ return -EINVAL;
+
+ fsize->type = V4L2_FRMSIZE_TYPE_STEPWISE;
+ fsize->stepwise.min_width = MIN_W;
+ fsize->stepwise.max_width = MAX_W;
+ fsize->stepwise.step_width = 1 << ALIGN_W;
+ fsize->stepwise.min_height = MIN_H;
+ fsize->stepwise.max_height = MAX_H;
+ fsize->stepwise.step_height = 1 << ALIGN_H;
+
+ return 0;
+}
+
static u8 pxp_degrees_to_rot_mode(u32 degrees)
{
switch (degrees) {
@@ -1447,6 +1467,8 @@ static const struct v4l2_ioctl_ops pxp_ioctl_ops = {
.vidioc_try_fmt_vid_out = pxp_try_fmt_vid_out,
.vidioc_s_fmt_vid_out = pxp_s_fmt_vid_out,

+ .vidioc_enum_framesizes = pxp_enum_framesizes,
+
.vidioc_reqbufs = v4l2_m2m_ioctl_reqbufs,
.vidioc_querybuf = v4l2_m2m_ioctl_querybuf,
.vidioc_qbuf = v4l2_m2m_ioctl_qbuf,

--
2.30.2