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authorHans Verkuil <hans.verkuil@cisco.com>2015-10-28 05:50:37 +0300
committerMauro Carvalho Chehab <mchehab@osg.samsung.com>2015-12-18 18:48:19 +0300
commitdf9ecb0cad14b952a2865f8b3af86b2bbadfab45 (patch)
treea6a9501e8fc5a3a59e6e3fbf54e8e5c5559aaf23 /drivers/media/platform/rcar_jpu.c
parentecc2fe20e63a21b7db23065ff061b66fbc08e08b (diff)
downloadlinux-df9ecb0cad14b952a2865f8b3af86b2bbadfab45.tar.xz
[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/rcar_jpu.c')
-rw-r--r--drivers/media/platform/rcar_jpu.c25
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/media/platform/rcar_jpu.c b/drivers/media/platform/rcar_jpu.c
index 86d2a3d18241..742f13ee67a9 100644
--- a/drivers/media/platform/rcar_jpu.c
+++ b/drivers/media/platform/rcar_jpu.c
@@ -1015,28 +1015,33 @@ error_free:
* ============================================================================
*/
static int jpu_queue_setup(struct vb2_queue *vq,
- const void *parg,
unsigned int *nbuffers, unsigned int *nplanes,
unsigned int sizes[], void *alloc_ctxs[])
{
- const struct v4l2_format *fmt = parg;
struct jpu_ctx *ctx = vb2_get_drv_priv(vq);
struct jpu_q_data *q_data;
unsigned int i;
q_data = jpu_get_q_data(ctx, vq->type);
- *nplanes = q_data->format.num_planes;
+ if (*nplanes) {
+ if (*nplanes != q_data->format.num_planes)
+ return -EINVAL;
- for (i = 0; i < *nplanes; i++) {
- unsigned int q_size = q_data->format.plane_fmt[i].sizeimage;
- unsigned int f_size = fmt ?
- fmt->fmt.pix_mp.plane_fmt[i].sizeimage : 0;
+ for (i = 0; i < *nplanes; i++) {
+ unsigned int q_size = q_data->format.plane_fmt[i].sizeimage;
- if (fmt && f_size < q_size)
- return -EINVAL;
+ if (sizes[i] < q_size)
+ return -EINVAL;
+ alloc_ctxs[i] = ctx->jpu->alloc_ctx;
+ }
+ return 0;
+ }
- sizes[i] = fmt ? f_size : q_size;
+ *nplanes = q_data->format.num_planes;
+
+ for (i = 0; i < *nplanes; i++) {
+ sizes[i] = q_data->format.plane_fmt[i].sizeimage;
alloc_ctxs[i] = ctx->jpu->alloc_ctx;
}