diff options
| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2013-07-12 18:25:36 +0400 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2013-12-11 13:02:21 +0400 |
| commit | 0b1d4249660fbb0c558a096ce72914b7f5fa82a8 (patch) | |
| tree | 04a7660b2ad3a326fdcb38483c64944842f31a69 /drivers/staging/media/omap4iss/iss_video.c | |
| parent | cc3c2ac29152b07ce58c8c7b34a8a8e8f321335a (diff) | |
| download | linux-0b1d4249660fbb0c558a096ce72914b7f5fa82a8.tar.xz | |
[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 <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'drivers/staging/media/omap4iss/iss_video.c')
| -rw-r--r-- | drivers/staging/media/omap4iss/iss_video.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/staging/media/omap4iss/iss_video.c b/drivers/staging/media/omap4iss/iss_video.c index 5dbd774aaa0a..68eab6e6dc36 100644 --- a/drivers/staging/media/omap4iss/iss_video.c +++ b/drivers/staging/media/omap4iss/iss_video.c @@ -496,6 +496,41 @@ iss_video_querycap(struct file *file, void *fh, struct v4l2_capability *cap) } 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) { struct iss_video_fh *vfh = to_iss_video_fh(fh); @@ -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, |