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author | Hans Verkuil <hans.verkuil@cisco.com> | 2015-10-28 00:50:37 -0200 |
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committer | Mauro Carvalho Chehab <mchehab@osg.samsung.com> | 2015-12-18 13:48:19 -0200 |
commit | df9ecb0cad14b952a2865f8b3af86b2bbadfab45 (patch) | |
tree | a6a9501e8fc5a3a59e6e3fbf54e8e5c5559aaf23 /drivers/media/platform/sh_vou.c | |
parent | ecc2fe20e63a21b7db23065ff061b66fbc08e08b (diff) | |
download | linux-df9ecb0cad14b952a2865f8b3af86b2bbadfab45.tar.bz2 |
[media] vb2: drop v4l2_format argument from queue_setup
The queue_setup callback has a void pointer that is just for V4L2
and is the pointer to the v4l2_format struct that was passed to
VIDIOC_CREATE_BUFS. The idea was that drivers would use the information
from that struct to buffers suitable for the requested format.
After the vb2 split series this pointer is now a void pointer,
which is ugly, and the reality is that all existing drivers will
effectively just look at the sizeimage field of v4l2_format.
To make this more generic the queue_setup callback is changed:
the void pointer is dropped, instead if the *num_planes argument
is 0, then use the current format size, if it is non-zero, then
it contains the number of requested planes and the sizes array
contains the requested sizes. If either is unsupported, then return
-EINVAL, otherwise use the requested size(s).
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
Diffstat (limited to 'drivers/media/platform/sh_vou.c')
-rw-r--r-- | drivers/media/platform/sh_vou.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/drivers/media/platform/sh_vou.c b/drivers/media/platform/sh_vou.c index 544e2b5a2ec3..fd0524ec1ccc 100644 --- a/drivers/media/platform/sh_vou.c +++ b/drivers/media/platform/sh_vou.c @@ -243,22 +243,21 @@ static void sh_vou_stream_config(struct sh_vou_device *vou_dev) } /* Locking: caller holds fop_lock mutex */ -static int sh_vou_queue_setup(struct vb2_queue *vq, const void *parg, +static int sh_vou_queue_setup(struct vb2_queue *vq, unsigned int *nbuffers, unsigned int *nplanes, unsigned int sizes[], void *alloc_ctxs[]) { - const struct v4l2_format *fmt = parg; struct sh_vou_device *vou_dev = vb2_get_drv_priv(vq); struct v4l2_pix_format *pix = &vou_dev->pix; int bytes_per_line = vou_fmt[vou_dev->pix_idx].bpp * pix->width / 8; dev_dbg(vou_dev->v4l2_dev.dev, "%s()\n", __func__); - if (fmt && fmt->fmt.pix.sizeimage < pix->height * bytes_per_line) - return -EINVAL; - *nplanes = 1; - sizes[0] = fmt ? fmt->fmt.pix.sizeimage : pix->height * bytes_per_line; alloc_ctxs[0] = vou_dev->alloc_ctx; + if (*nplanes) + return sizes[0] < pix->height * bytes_per_line ? -EINVAL : 0; + *nplanes = 1; + sizes[0] = pix->height * bytes_per_line; return 0; } |