From 0b1d4249660fbb0c558a096ce72914b7f5fa82a8 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 12 Jul 2013 11:25:36 -0300 Subject: [PATCH] [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: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/media/omap4iss/iss_video.c | 36 ++++++++++++++++++++++ 1 file changed, 36 insertions(+) diff --git a/drivers/staging/media/omap4iss/iss_video.c b/drivers/staging/media/omap4iss/iss_video.c index 5dbd774aaa0..68eab6e6dc3 100644 --- a/drivers/staging/media/omap4iss/iss_video.c +++ b/drivers/staging/media/omap4iss/iss_video.c @@ -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, -- 2.41.0