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Commit 0b1d4249 authored by Laurent Pinchart's avatar Laurent Pinchart Committed by Mauro Carvalho Chehab
Browse files

[media] v4l: omap4iss: Add enum_fmt_vid_cap ioctl support 



List the pixel formats compatible with the active format currently
configured on the connected pad.

Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarMauro Carvalho Chehab <m.chehab@samsung.com>
parent cc3c2ac2

drivers/staging/media/omap4iss/iss_video.c

+36 −0
Original line number Diff line number Diff line
@@ -495,6 +495,41 @@ iss_video_querycap(struct file *file, void *fh, struct v4l2_capability *cap) 
	return 0;

}



static int

iss_video_enum_format(struct file *file, void *fh, struct v4l2_fmtdesc *f)

{

	struct iss_video *video = video_drvdata(file);

	struct v4l2_mbus_framefmt format;

	unsigned int index = f->index;

	unsigned int i;

	int ret;



	if (f->type != video->type)

		return -EINVAL;



	ret = __iss_video_get_format(video, &format);

	if (ret < 0)

		return ret;



	for (i = 0; i < ARRAY_SIZE(formats); ++i) {

		const struct iss_format_info *info = &formats[i];



		if (format.code != info->code)

			continue;



		if (index == 0) {

			f->pixelformat = info->pixelformat;

			strlcpy(f->description, info->description,

				sizeof(f->description));

			return 0;

		}



		index--;

	}



	return -EINVAL;

}



static int

iss_video_get_format(struct file *file, void *fh, struct v4l2_format *format)

{
@@ -918,6 +953,7 @@ iss_video_s_input(struct file *file, void *fh, unsigned int input) 


static const struct v4l2_ioctl_ops iss_video_ioctl_ops = {

	.vidioc_querycap		= iss_video_querycap,

	.vidioc_enum_fmt_vid_cap        = iss_video_enum_format,

	.vidioc_g_fmt_vid_cap		= iss_video_get_format,

	.vidioc_s_fmt_vid_cap		= iss_video_set_format,

	.vidioc_try_fmt_vid_cap		= iss_video_try_format,