diff options
| author | Michael Tretter <m.tretter@pengutronix.de> | 2021-01-15 10:34:59 +0100 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-01-27 16:04:30 +0100 |
| commit | 8e64f00846bb19cb1910363c1acad64aa92020d4 (patch) | |
| tree | 7f5e22932f6d9916d7c65f37ba90e1b857e54d5a /drivers/media | |
| parent | 7f8e438b90c91541d784feb5f71be1a0b01a6010 (diff) | |
| download | linux-8e64f00846bb19cb1910363c1acad64aa92020d4.tar.bz2 | |
media: allegro: implement S_FMT for CAPTURE
In order to support different codecs, the driver must support changing
the format on CAPTURE. Therefore, the driver needs to handle S_FMT on
CAPTURE.
As the driver will have a different number of formats for OUTPUT and
CAPTURE, split the check for the format index in ENUM_FMT into CAPTURE
and OUTPUT.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/platform/allegro-dvt/allegro-core.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/drivers/media/platform/allegro-dvt/allegro-core.c b/drivers/media/platform/allegro-dvt/allegro-core.c index dd02ca5a584b..4d8e27464018 100644 --- a/drivers/media/platform/allegro-dvt/allegro-core.c +++ b/drivers/media/platform/allegro-dvt/allegro-core.c @@ -2502,13 +2502,15 @@ static int allegro_querycap(struct file *file, void *fh, static int allegro_enum_fmt_vid(struct file *file, void *fh, struct v4l2_fmtdesc *f) { - if (f->index) - return -EINVAL; switch (f->type) { case V4L2_BUF_TYPE_VIDEO_OUTPUT: + if (f->index >= 1) + return -EINVAL; f->pixelformat = V4L2_PIX_FMT_NV12; break; case V4L2_BUF_TYPE_VIDEO_CAPTURE: + if (f->index >= 1) + return -EINVAL; f->pixelformat = V4L2_PIX_FMT_H264; break; default: @@ -2556,6 +2558,28 @@ static int allegro_try_fmt_vid_cap(struct file *file, void *fh, return 0; } +static int allegro_s_fmt_vid_cap(struct file *file, void *fh, + struct v4l2_format *f) +{ + struct allegro_channel *channel = fh_to_channel(fh); + struct vb2_queue *vq; + int err; + + err = allegro_try_fmt_vid_cap(file, fh, f); + if (err) + return err; + + vq = v4l2_m2m_get_vq(channel->fh.m2m_ctx, f->type); + if (!vq) + return -EINVAL; + if (vb2_is_busy(vq)) + return -EBUSY; + + channel->codec = f->fmt.pix.pixelformat; + + return 0; +} + static int allegro_g_fmt_vid_out(struct file *file, void *fh, struct v4l2_format *f) { @@ -2768,7 +2792,7 @@ static const struct v4l2_ioctl_ops allegro_ioctl_ops = { .vidioc_enum_fmt_vid_out = allegro_enum_fmt_vid, .vidioc_g_fmt_vid_cap = allegro_g_fmt_vid_cap, .vidioc_try_fmt_vid_cap = allegro_try_fmt_vid_cap, - .vidioc_s_fmt_vid_cap = allegro_try_fmt_vid_cap, + .vidioc_s_fmt_vid_cap = allegro_s_fmt_vid_cap, .vidioc_g_fmt_vid_out = allegro_g_fmt_vid_out, .vidioc_try_fmt_vid_out = allegro_try_fmt_vid_out, .vidioc_s_fmt_vid_out = allegro_s_fmt_vid_out, |