diff options
| author | Hans Verkuil <hverkuil@xs4all.nl> | 2015-04-24 07:26:01 (GMT) |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-05-01 10:35:24 (GMT) |
| commit | a988410ad141b5087f483ae32e4bd9b922be5ab8 (patch) | |
| tree | df43ec547798a26bd76b2154880192e32e32da96 /drivers/media/usb | |
| parent | 2b4fd3ede3bab65ef5b97387b90899d11e4d3202 (diff) | |
| download | linux-a988410ad141b5087f483ae32e4bd9b922be5ab8.tar.xz | |
[media] usbtv: fix v4l2-compliance issues
Running v4l2-compliance on my usbtv stick revealed two failures:
1) Correct handling of CREATE_BUFS in usbtv_queue_setup was missing. Added this.
2) The sequence counter wasn't reset to 0 when starting streaming.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/usb')
| -rw-r--r-- | drivers/media/usb/usbtv/usbtv-video.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/drivers/media/usb/usbtv/usbtv-video.c b/drivers/media/usb/usbtv/usbtv-video.c index 9d3525f..08fb0f2 100644 --- a/drivers/media/usb/usbtv/usbtv-video.c +++ b/drivers/media/usb/usbtv/usbtv-video.c @@ -599,15 +599,18 @@ static struct v4l2_file_operations usbtv_fops = { }; static int usbtv_queue_setup(struct vb2_queue *vq, - const struct v4l2_format *v4l_fmt, unsigned int *nbuffers, + const struct v4l2_format *fmt, unsigned int *nbuffers, unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[]) { struct usbtv *usbtv = vb2_get_drv_priv(vq); + unsigned size = USBTV_CHUNK * usbtv->n_chunks * 2 * sizeof(u32); - if (*nbuffers < 2) - *nbuffers = 2; + if (vq->num_buffers + *nbuffers < 2) + *nbuffers = 2 - vq->num_buffers; *nplanes = 1; - sizes[0] = USBTV_CHUNK * usbtv->n_chunks * 2 * sizeof(u32); + if (fmt && fmt->fmt.pix.sizeimage < size) + return -EINVAL; + sizes[0] = fmt ? fmt->fmt.pix.sizeimage : size; return 0; } @@ -635,6 +638,7 @@ static int usbtv_start_streaming(struct vb2_queue *vq, unsigned int count) if (usbtv->udev == NULL) return -ENODEV; + usbtv->sequence = 0; return usbtv_start(usbtv); } |