static int fimc_lite_create_bufs(struct file *file, void *priv,
struct v4l2_create_buffers *create)
{
struct fimc_lite *fimc = video_drvdata(file);
return vb2_create_bufs(&fimc->vb_queue, create);
}
static int fimc_cap_create_bufs(struct file *file, void *priv,
struct v4l2_create_buffers *create)
{
struct fimc_dev *fimc = video_drvdata(file);
return vb2_create_bufs(&fimc->vid_cap.vbq, create);
}
/**
* v4l2_m2m_create_bufs() - create a source or destination buffer, depending
* on the type
*/
int v4l2_m2m_create_bufs(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
struct v4l2_create_buffers *create)
{
struct vb2_queue *vq;
vq = v4l2_m2m_get_vq(m2m_ctx, create->format.type);
return vb2_create_bufs(vq, create);
}
int uvc_create_buffers(struct uvc_video_queue *queue,
struct v4l2_create_buffers *cb)
{
int ret;
mutex_lock(&queue->mutex);
ret = vb2_create_bufs(&queue->queue, cb);
mutex_unlock(&queue->mutex);
return ret;
}
int vb2_ioctl_create_bufs(struct file *file, void *priv,
struct v4l2_create_buffers *p)
{
struct video_device *vdev = video_devdata(file);
int res = vb2_verify_memory_type(vdev->queue, p->memory,
p->format.type);
p->index = vdev->queue->num_buffers;
/*
* If count == 0, then just check if memory and type are valid.
* Any -EBUSY result from vb2_verify_memory_type can be mapped to 0.
*/
if (p->count == 0)
return res != -EBUSY ? res : 0;
if (res)
return res;
if (vb2_queue_is_busy(vdev, file))
return -EBUSY;
res = vb2_create_bufs(vdev->queue, p);
if (res == 0)
vdev->queue->owner = file->private_data;
return res;
}