/* Query buffer */
static int vidioc_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
struct s5p_mfc_ctx *ctx = fh_to_ctx(priv);
int ret;
int i;
if (buf->memory != V4L2_MEMORY_MMAP) {
mfc_err("Only mmaped buffers can be used\n");
return -EINVAL;
}
mfc_debug(2, "State: %d, buf->type: %d\n", ctx->state, buf->type);
if (ctx->state == MFCINST_INIT &&
buf->type == V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE) {
ret = vb2_querybuf(&ctx->vq_src, buf);
} else if (ctx->state == MFCINST_RUNNING &&
buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) {
ret = vb2_querybuf(&ctx->vq_dst, buf);
for (i = 0; i < buf->length; i++)
buf->m.planes[i].m.mem_offset += DST_QUEUE_OFF_BASE;
} else {
mfc_err("vidioc_querybuf called in an inappropriate state\n");
ret = -EINVAL;
}
mfc_debug_leave();
return ret;
}
static int nxp_video_querybuf(struct file *file, void *fh,
struct v4l2_buffer *b)
{
struct nxp_video *me = file->private_data;
if (me->vbq) {
return vb2_querybuf(me->vbq, b);
} else {
struct vb2_queue *vq = v4l2_m2m_get_vq(me->m2m_ctx, b->type);
return vb2_querybuf(vq, b);
}
}
static int fimc_lite_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
struct fimc_lite *fimc = video_drvdata(file);
return vb2_querybuf(&fimc->vb_queue, buf);
}
int vb2_ioctl_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
{
struct video_device *vdev = video_devdata(file);
/* No need to call vb2_queue_is_busy(), anyone can query buffers. */
return vb2_querybuf(vdev->queue, p);
}
static int fimc_cap_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
struct fimc_dev *fimc = video_drvdata(file);
return vb2_querybuf(&fimc->vid_cap.vbq, buf);
}
static int
iss_video_querybuf(struct file *file, void *fh, struct v4l2_buffer *b)
{
struct iss_video_fh *vfh = to_iss_video_fh(fh);
return vb2_querybuf(&vfh->queue, b);
}
static int mxr_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
{
struct mxr_layer *layer = video_drvdata(file);
mxr_dbg(layer->mdev, "%s:%d\n", __func__, __LINE__);
return vb2_querybuf(&layer->vb_queue, p);
}
static int gsc_capture_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
struct gsc_dev *gsc = video_drvdata(file);
struct gsc_capture_device *cap = &gsc->cap;
return vb2_querybuf(&cap->vbq, buf);
}
static int fimc_cap_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
struct fimc_ctx *ctx = priv;
struct fimc_vid_cap *cap = &ctx->fimc_dev->vid_cap;
return vb2_querybuf(&cap->vbq, buf);
}
static int at91sam9x5_video_vidioc_querybuf(struct file *filp,
void *fh, struct v4l2_buffer *b)
{
struct video_device *vdev = filp->private_data;
struct at91sam9x5_video_priv *priv = video_get_drvdata(vdev);
return vb2_querybuf(&priv->queue, b);
}
static int fimc_is_isp_video_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
struct fimc_is_video_dev *video = file->private_data;
printk(KERN_DEBUG "%s\n", __func__);
return vb2_querybuf(&video->vbq, buf);
}
int uvcg_query_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf)
{
int ret;
mutex_lock(&queue->mutex);
ret = vb2_querybuf(&queue->queue, buf);
mutex_unlock(&queue->mutex);
return ret;
}
static int
hwcam_dev_vo_querybuf(
struct file* filep,
void* fh,
struct v4l2_buffer* pb)
{
hwcam_dev_t* cam = video_drvdata(filep);
hwcam_user_t* user = VO2USER(fh);
BUG_ON(!cam || !user);
return vb2_querybuf(&user->vb2q, pb);
}
static int fimc_is_scc_video_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
int ret;
struct fimc_is_video_ctx *video_ctx = file->private_data;
dbg("%s\n", __func__);
ret = vb2_querybuf(&video_ctx->vbq, buf);
return ret;
}
static int fimc_is_bayer_video_querybuf(struct file *file, void *priv,
struct v4l2_buffer *buf)
{
int ret;
struct fimc_is_video_sensor *video = file->private_data;
dbg_sensor("%s\n", __func__);
ret = vb2_querybuf(&video->common.vbq, buf);
return ret;
}
static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
{
struct vcap_client_data *c_data = file->private_data;
switch (p->type) {
case V4L2_BUF_TYPE_VIDEO_CAPTURE:
return vb2_querybuf(&c_data->vc_vidq, p);
default:
pr_err("VCAP Error: %s: Unknown buffer type\n", __func__);
return -EINVAL;
}
return 0;
}
int fimc_is_video_querybuf(struct file *file,
struct fimc_is_video_ctx *vctx,
struct v4l2_buffer *buf)
{
int ret = 0;
struct fimc_is_queue *queue;
queue = GET_QUEUE(vctx);
ret = vb2_querybuf(queue->vbq, buf);
return ret;
}
static int
xvip_dma_querybuf(struct file *file, void *fh, struct v4l2_buffer *buf)
{
struct v4l2_fh *vfh = file->private_data;
struct xvip_dma *dma = to_xvip_dma(vfh->vdev);
int ret;
mutex_lock(&dma->lock);
ret = vb2_querybuf(&dma->queue, buf);
mutex_unlock(&dma->lock);
return ret;
}
/**
* v4l2_m2m_querybuf() - multi-queue-aware QUERYBUF multiplexer
*
* See v4l2_m2m_mmap() documentation for details.
*/
int v4l2_m2m_querybuf(struct file *file, struct v4l2_m2m_ctx *m2m_ctx,
struct v4l2_buffer *buf)
{
struct vb2_queue *vq;
int ret = 0;
unsigned int i;
vq = v4l2_m2m_get_vq(m2m_ctx, buf->type);
ret = vb2_querybuf(vq, buf);
/* Adjust MMAP memory offsets for the CAPTURE queue */
if (buf->memory == V4L2_MEMORY_MMAP && !V4L2_TYPE_IS_OUTPUT(vq->type)) {
if (V4L2_TYPE_IS_MULTIPLANAR(vq->type)) {
for (i = 0; i < buf->length; ++i)
buf->m.planes[i].m.mem_offset
+= DST_QUEUE_OFF_BASE;
} else {
buf->m.offset += DST_QUEUE_OFF_BASE;
}
}
return ret;
}
/* 查询buffer信息 */
static int myvivi_vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
{
return vb2_querybuf(&myvivi_vb_vidqueue, p);
}
int uvcg_query_buffer(struct uvc_video_queue *queue, struct v4l2_buffer *buf)
{
return vb2_querybuf(&queue->queue, buf);
}