[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>
diff --git a/drivers/media/platform/vivid/vivid-vid-cap.c b/drivers/media/platform/vivid/vivid-vid-cap.c
index 9cc07c6..b84f081 100644
--- a/drivers/media/platform/vivid/vivid-vid-cap.c
+++ b/drivers/media/platform/vivid/vivid-vid-cap.c
@@ -95,11 +95,10 @@
VIVID_WEBCAM_SIZES
};
-static int vid_cap_queue_setup(struct vb2_queue *vq, const void *parg,
+static int vid_cap_queue_setup(struct vb2_queue *vq,
unsigned *nbuffers, unsigned *nplanes,
unsigned sizes[], void *alloc_ctxs[])
{
- const struct v4l2_format *fmt = parg;
struct vivid_dev *dev = vb2_get_drv_priv(vq);
unsigned buffers = tpg_g_buffers(&dev->tpg);
unsigned h = dev->fmt_cap_rect.height;
@@ -122,27 +121,16 @@
dev->queue_setup_error = false;
return -EINVAL;
}
- if (fmt) {
- const struct v4l2_pix_format_mplane *mp;
- struct v4l2_format mp_fmt;
- const struct vivid_fmt *vfmt;
-
- if (!V4L2_TYPE_IS_MULTIPLANAR(fmt->type)) {
- fmt_sp2mp(fmt, &mp_fmt);
- fmt = &mp_fmt;
- }
- mp = &fmt->fmt.pix_mp;
+ if (*nplanes) {
/*
- * Check if the number of planes in the specified format match
+ * Check if the number of requested planes match
* the number of buffers in the current format. You can't mix that.
*/
- if (mp->num_planes != buffers)
+ if (*nplanes != buffers)
return -EINVAL;
- vfmt = vivid_get_format(dev, mp->pixelformat);
for (p = 0; p < buffers; p++) {
- sizes[p] = mp->plane_fmt[p].sizeimage;
if (sizes[p] < tpg_g_line_width(&dev->tpg, p) * h +
- vfmt->data_offset[p])
+ dev->fmt_cap->data_offset[p])
return -EINVAL;
}
} else {