[media] vivi: use vb2 helper functions
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Hans Verkuil
Mauro Carvalho Chehab
parent
70bd97ae5f
commit
f2ba5a0b46
@ -790,27 +790,6 @@ static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
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return 0;
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}
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static int buffer_init(struct vb2_buffer *vb)
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{
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struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
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BUG_ON(NULL == dev->fmt);
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/*
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* This callback is called once per buffer, after its allocation.
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*
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* Vivi does not allow changing format during streaming, but it is
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* possible to do so when streaming is paused (i.e. in streamoff state).
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* Buffers however are not freed when going into streamoff and so
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* buffer size verification has to be done in buffer_prepare, on each
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* qbuf.
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* It would be best to move verification code here to buf_init and
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* s_fmt though.
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*/
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return 0;
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}
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static int buffer_prepare(struct vb2_buffer *vb)
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{
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struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
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@ -848,20 +827,6 @@ static int buffer_prepare(struct vb2_buffer *vb)
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return 0;
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}
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static int buffer_finish(struct vb2_buffer *vb)
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{
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struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
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dprintk(dev, 1, "%s\n", __func__);
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return 0;
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}
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static void buffer_cleanup(struct vb2_buffer *vb)
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{
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struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
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dprintk(dev, 1, "%s\n", __func__);
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}
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static void buffer_queue(struct vb2_buffer *vb)
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{
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struct vivi_dev *dev = vb2_get_drv_priv(vb->vb2_queue);
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@ -907,10 +872,7 @@ static void vivi_unlock(struct vb2_queue *vq)
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static struct vb2_ops vivi_video_qops = {
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.queue_setup = queue_setup,
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.buf_init = buffer_init,
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.buf_prepare = buffer_prepare,
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.buf_finish = buffer_finish,
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.buf_cleanup = buffer_cleanup,
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.buf_queue = buffer_queue,
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.start_streaming = start_streaming,
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.stop_streaming = stop_streaming,
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@ -1019,7 +981,7 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
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if (ret < 0)
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return ret;
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if (vb2_is_streaming(q)) {
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if (vb2_is_busy(q)) {
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dprintk(dev, 1, "%s device busy\n", __func__);
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return -EBUSY;
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}
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@ -1033,43 +995,6 @@ static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
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return 0;
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}
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static int vidioc_reqbufs(struct file *file, void *priv,
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struct v4l2_requestbuffers *p)
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{
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struct vivi_dev *dev = video_drvdata(file);
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return vb2_reqbufs(&dev->vb_vidq, p);
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}
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static int vidioc_querybuf(struct file *file, void *priv, struct v4l2_buffer *p)
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{
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struct vivi_dev *dev = video_drvdata(file);
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return vb2_querybuf(&dev->vb_vidq, p);
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}
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static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *p)
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{
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struct vivi_dev *dev = video_drvdata(file);
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return vb2_qbuf(&dev->vb_vidq, p);
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}
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static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *p)
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{
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struct vivi_dev *dev = video_drvdata(file);
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return vb2_dqbuf(&dev->vb_vidq, p, file->f_flags & O_NONBLOCK);
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}
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static int vidioc_streamon(struct file *file, void *priv, enum v4l2_buf_type i)
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{
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struct vivi_dev *dev = video_drvdata(file);
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return vb2_streamon(&dev->vb_vidq, i);
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}
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static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
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{
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struct vivi_dev *dev = video_drvdata(file);
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return vb2_streamoff(&dev->vb_vidq, i);
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}
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/* only one input in this sample driver */
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static int vidioc_enum_input(struct file *file, void *priv,
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struct v4l2_input *inp)
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@ -1137,58 +1062,6 @@ static int vivi_s_ctrl(struct v4l2_ctrl *ctrl)
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File operations for the device
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------------------------------------------------------------------*/
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static ssize_t
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vivi_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
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{
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struct vivi_dev *dev = video_drvdata(file);
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int err;
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dprintk(dev, 1, "read called\n");
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mutex_lock(&dev->mutex);
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err = vb2_read(&dev->vb_vidq, data, count, ppos,
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file->f_flags & O_NONBLOCK);
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mutex_unlock(&dev->mutex);
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return err;
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}
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static unsigned int
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vivi_poll(struct file *file, struct poll_table_struct *wait)
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{
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struct vivi_dev *dev = video_drvdata(file);
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struct vb2_queue *q = &dev->vb_vidq;
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dprintk(dev, 1, "%s\n", __func__);
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return vb2_poll(q, file, wait);
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}
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static int vivi_close(struct file *file)
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{
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struct video_device *vdev = video_devdata(file);
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struct vivi_dev *dev = video_drvdata(file);
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dprintk(dev, 1, "close called (dev=%s), file %p\n",
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video_device_node_name(vdev), file);
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if (v4l2_fh_is_singular_file(file))
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vb2_queue_release(&dev->vb_vidq);
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return v4l2_fh_release(file);
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}
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static int vivi_mmap(struct file *file, struct vm_area_struct *vma)
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{
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struct vivi_dev *dev = video_drvdata(file);
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int ret;
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dprintk(dev, 1, "mmap called, vma=0x%08lx\n", (unsigned long)vma);
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ret = vb2_mmap(&dev->vb_vidq, vma);
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dprintk(dev, 1, "vma start=0x%08lx, size=%ld, ret=%d\n",
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(unsigned long)vma->vm_start,
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(unsigned long)vma->vm_end - (unsigned long)vma->vm_start,
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ret);
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return ret;
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}
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static const struct v4l2_ctrl_ops vivi_ctrl_ops = {
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.g_volatile_ctrl = vivi_g_volatile_ctrl,
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.s_ctrl = vivi_s_ctrl,
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@ -1293,11 +1166,11 @@ static const struct v4l2_ctrl_config vivi_ctrl_int_menu = {
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static const struct v4l2_file_operations vivi_fops = {
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.owner = THIS_MODULE,
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.open = v4l2_fh_open,
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.release = vivi_close,
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.read = vivi_read,
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.poll = vivi_poll,
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.release = vb2_fop_release,
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.read = vb2_fop_read,
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.poll = vb2_fop_poll,
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.unlocked_ioctl = video_ioctl2, /* V4L2 ioctl handler */
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.mmap = vivi_mmap,
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.mmap = vb2_fop_mmap,
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};
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static const struct v4l2_ioctl_ops vivi_ioctl_ops = {
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@ -1306,15 +1179,15 @@ static const struct v4l2_ioctl_ops vivi_ioctl_ops = {
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.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
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.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
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.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
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.vidioc_reqbufs = vidioc_reqbufs,
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.vidioc_querybuf = vidioc_querybuf,
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.vidioc_qbuf = vidioc_qbuf,
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.vidioc_dqbuf = vidioc_dqbuf,
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.vidioc_reqbufs = vb2_ioctl_reqbufs,
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.vidioc_querybuf = vb2_ioctl_querybuf,
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.vidioc_qbuf = vb2_ioctl_qbuf,
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.vidioc_dqbuf = vb2_ioctl_dqbuf,
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.vidioc_enum_input = vidioc_enum_input,
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.vidioc_g_input = vidioc_g_input,
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.vidioc_s_input = vidioc_s_input,
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.vidioc_streamon = vidioc_streamon,
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.vidioc_streamoff = vidioc_streamoff,
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.vidioc_streamon = vb2_ioctl_streamon,
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.vidioc_streamoff = vb2_ioctl_streamoff,
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.vidioc_log_status = v4l2_ctrl_log_status,
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.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
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.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
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@ -1432,6 +1305,7 @@ static int __init vivi_create_instance(int inst)
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*vfd = vivi_template;
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vfd->debug = debug;
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vfd->v4l2_dev = &dev->v4l2_dev;
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vfd->queue = q;
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set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags);
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/*
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