From df9ecb0cad14b952a2865f8b3af86b2bbadfab45 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 28 Oct 2015 00:50:37 -0200 Subject: [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 Signed-off-by: Mauro Carvalho Chehab --- drivers/media/pci/cx25821/cx25821-video.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) (limited to 'drivers/media/pci/cx25821') diff --git a/drivers/media/pci/cx25821/cx25821-video.c b/drivers/media/pci/cx25821/cx25821-video.c index 26e3e296d615..644373dd2525 100644 --- a/drivers/media/pci/cx25821/cx25821-video.c +++ b/drivers/media/pci/cx25821/cx25821-video.c @@ -141,20 +141,20 @@ int cx25821_video_irq(struct cx25821_dev *dev, int chan_num, u32 status) return handled; } -static int cx25821_queue_setup(struct vb2_queue *q, const void *parg, +static int cx25821_queue_setup(struct vb2_queue *q, unsigned int *num_buffers, unsigned int *num_planes, unsigned int sizes[], void *alloc_ctxs[]) { - const struct v4l2_format *fmt = parg; struct cx25821_channel *chan = q->drv_priv; unsigned size = (chan->fmt->depth * chan->width * chan->height) >> 3; - if (fmt && fmt->fmt.pix.sizeimage < size) - return -EINVAL; + alloc_ctxs[0] = chan->dev->alloc_ctx; + + if (*num_planes) + return sizes[0] < size ? -EINVAL : 0; *num_planes = 1; - sizes[0] = fmt ? fmt->fmt.pix.sizeimage : size; - alloc_ctxs[0] = chan->dev->alloc_ctx; + sizes[0] = size; return 0; } -- cgit v1.2.3