MODULE_LICENSE("GPL");
MODULE_VERSION(EM28XX_VERSION);
-static unsigned int video_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
-static unsigned int vbi_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
-static unsigned int radio_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = UNSET };
+static unsigned int video_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U };
+static unsigned int vbi_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U };
+static unsigned int radio_nr[] = {[0 ... (EM28XX_MAXBOARDS - 1)] = -1U };
module_param_array(video_nr, int, NULL, 0444);
module_param_array(vbi_nr, int, NULL, 0444);
static inline void finish_buffer(struct em28xx *dev,
struct em28xx_buffer *buf)
{
- em28xx_isocdbg("[%p/%d] wakeup\n", buf, buf->vb.i);
- buf->vb.state = VIDEOBUF_DONE;
- buf->vb.field_count++;
- v4l2_get_timestamp(&buf->vb.ts);
- list_del(&buf->vb.queue);
- wake_up(&buf->vb.done);
+ em28xx_isocdbg("[%p/%d] wakeup\n", buf, buf->top_field);
+
+ buf->vb.v4l2_buf.sequence = dev->field_count++;
+ buf->vb.v4l2_buf.field = V4L2_FIELD_INTERLACED;
+ v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
+
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE);
}
/*
int linesdone, currlinedone, offset, lencopy, remain;
int bytesperline = dev->width << 1;
- if (buf->pos + len > buf->vb.size)
- len = buf->vb.size - buf->pos;
+ if (buf->pos + len > buf->length)
+ len = buf->length - buf->pos;
startread = usb_buf;
remain = len;
lencopy = bytesperline - currlinedone;
lencopy = lencopy > remain ? remain : lencopy;
- if ((char *)startwrite + lencopy > (char *)buf->vb_buf + buf->vb.size) {
+ if ((char *)startwrite + lencopy > (char *)buf->vb_buf + buf->length) {
em28xx_isocdbg("Overflow of %zi bytes past buffer end (1)\n",
((char *)startwrite + lencopy) -
- ((char *)buf->vb_buf + buf->vb.size));
- remain = (char *)buf->vb_buf + buf->vb.size -
+ ((char *)buf->vb_buf + buf->length));
+ remain = (char *)buf->vb_buf + buf->length -
(char *)startwrite;
lencopy = remain;
}
lencopy = bytesperline;
if ((char *)startwrite + lencopy > (char *)buf->vb_buf +
- buf->vb.size) {
+ buf->length) {
em28xx_isocdbg("Overflow of %zi bytes past buffer end"
"(2)\n",
((char *)startwrite + lencopy) -
- ((char *)buf->vb_buf + buf->vb.size));
- lencopy = remain = (char *)buf->vb_buf + buf->vb.size -
- (char *)startwrite;
+ ((char *)buf->vb_buf + buf->length));
+ lencopy = remain = (char *)buf->vb_buf + buf->length -
+ (char *)startwrite;
}
if (lencopy <= 0)
break;
{
unsigned int offset;
- if (buf->pos + len > buf->vb.size)
- len = buf->vb.size - buf->pos;
+ if (buf->pos + len > buf->length)
+ len = buf->length - buf->pos;
offset = buf->pos;
/* Make sure the bottom field populates the second half of the frame */
struct em28xx_dmaqueue *dma_q)
{
struct em28xx_buffer *buf;
- char *outp;
if (list_empty(&dma_q->active)) {
em28xx_isocdbg("No active queue to serve\n");
}
/* Get the next buffer */
- buf = list_entry(dma_q->active.next, struct em28xx_buffer, vb.queue);
+ buf = list_entry(dma_q->active.next, struct em28xx_buffer, list);
/* Cleans up buffer - Useful for testing for frame/URB loss */
- outp = videobuf_to_vmalloc(&buf->vb);
- memset(outp, 0, buf->vb.size);
+ list_del(&buf->list);
buf->pos = 0;
- buf->vb_buf = outp;
+ buf->vb_buf = buf->mem;
return buf;
}
}
+static int get_ressource(enum v4l2_buf_type f_type)
+{
+ switch (f_type) {
+ case V4L2_BUF_TYPE_VIDEO_CAPTURE:
+ return EM28XX_RESOURCE_VIDEO;
+ case V4L2_BUF_TYPE_VBI_CAPTURE:
+ return EM28XX_RESOURCE_VBI;
+ default:
+ BUG();
+ return 0;
+ }
+}
+
+/* Usage lock check functions */
+static int res_get(struct em28xx *dev, enum v4l2_buf_type f_type)
+{
+ int res_type = get_ressource(f_type);
+
+ /* is it free? */
+ if (dev->resources & res_type) {
+ /* no, someone else uses it */
+ return -EBUSY;
+ }
+
+ /* it's free, grab it */
+ dev->resources |= res_type;
+ em28xx_videodbg("res: get %d\n", res_type);
+ return 0;
+}
+
+static void res_free(struct em28xx *dev, enum v4l2_buf_type f_type)
+{
+ int res_type = get_ressource(f_type);
+
+ dev->resources &= ~res_type;
+ em28xx_videodbg("res: put %d\n", res_type);
+}
+
/* ------------------------------------------------------------------
- Videobuf operations
+ Videobuf2 operations
------------------------------------------------------------------*/
-static int
-buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
+static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *fmt,
+ unsigned int *nbuffers, unsigned int *nplanes,
+ unsigned int sizes[], void *alloc_ctxs[])
{
- struct em28xx_fh *fh = vq->priv_data;
- struct em28xx *dev = fh->dev;
- struct v4l2_frequency f;
-
- *size = (fh->dev->width * fh->dev->height * dev->format->depth + 7)
- >> 3;
+ struct em28xx *dev = vb2_get_drv_priv(vq);
+ unsigned long size;
- if (0 == *count)
- *count = EM28XX_DEF_BUF;
+ if (fmt)
+ size = fmt->fmt.pix.sizeimage;
+ else
+ size = (dev->width * dev->height * dev->format->depth + 7) >> 3;
- if (*count < EM28XX_MIN_BUF)
- *count = EM28XX_MIN_BUF;
+ if (size == 0)
+ return -EINVAL;
- /* Ask tuner to go to analog or radio mode */
- memset(&f, 0, sizeof(f));
- f.frequency = dev->ctl_freq;
- f.type = fh->radio ? V4L2_TUNER_RADIO : V4L2_TUNER_ANALOG_TV;
+ if (0 == *nbuffers)
+ *nbuffers = 32;
- v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
+ *nplanes = 1;
+ sizes[0] = size;
return 0;
}
-/* This is called *without* dev->slock held; please keep it that way */
-static void free_buffer(struct videobuf_queue *vq, struct em28xx_buffer *buf)
+static int
+buffer_prepare(struct vb2_buffer *vb)
{
- struct em28xx_fh *fh = vq->priv_data;
- struct em28xx *dev = fh->dev;
- unsigned long flags = 0;
- if (in_interrupt())
- BUG();
+ struct em28xx *dev = vb2_get_drv_priv(vb->vb2_queue);
+ struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb);
+ unsigned long size;
- /* We used to wait for the buffer to finish here, but this didn't work
- because, as we were keeping the state as VIDEOBUF_QUEUED,
- videobuf_queue_cancel marked it as finished for us.
- (Also, it could wedge forever if the hardware was misconfigured.)
+ em28xx_videodbg("%s, field=%d\n", __func__, vb->v4l2_buf.field);
- This should be safe; by the time we get here, the buffer isn't
- queued anymore. If we ever start marking the buffers as
- VIDEOBUF_ACTIVE, it won't be, though.
- */
- spin_lock_irqsave(&dev->slock, flags);
- if (dev->usb_ctl.vid_buf == buf)
- dev->usb_ctl.vid_buf = NULL;
- spin_unlock_irqrestore(&dev->slock, flags);
+ size = (dev->width * dev->height * dev->format->depth + 7) >> 3;
- videobuf_vmalloc_free(&buf->vb);
- buf->vb.state = VIDEOBUF_NEEDS_INIT;
+ if (vb2_plane_size(vb, 0) < size) {
+ em28xx_videodbg("%s data will not fit into plane (%lu < %lu)\n",
+ __func__, vb2_plane_size(vb, 0), size);
+ return -EINVAL;
+ }
+ vb2_set_plane_payload(&buf->vb, 0, size);
+
+ return 0;
}
-static int
-buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
- enum v4l2_field field)
+int em28xx_start_analog_streaming(struct vb2_queue *vq, unsigned int count)
{
- struct em28xx_fh *fh = vq->priv_data;
- struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb);
- struct em28xx *dev = fh->dev;
- int rc = 0, urb_init = 0;
+ struct em28xx *dev = vb2_get_drv_priv(vq);
+ struct v4l2_frequency f;
+ int rc = 0;
- buf->vb.size = (fh->dev->width * fh->dev->height * dev->format->depth
- + 7) >> 3;
+ em28xx_videodbg("%s\n", __func__);
- if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
- return -EINVAL;
+ /* Make sure streaming is not already in progress for this type
+ of filehandle (e.g. video, vbi) */
+ rc = res_get(dev, vq->type);
+ if (rc)
+ return rc;
- buf->vb.width = dev->width;
- buf->vb.height = dev->height;
- buf->vb.field = field;
+ if (dev->streaming_users++ == 0) {
+ /* First active streaming user, so allocate all the URBs */
- if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
- rc = videobuf_iolock(vq, &buf->vb, NULL);
- if (rc < 0)
- goto fail;
- }
+ /* Allocate the USB bandwidth */
+ em28xx_set_alternate(dev);
- if (!dev->usb_ctl.analog_bufs.num_bufs)
- urb_init = 1;
+ /* Needed, since GPIO might have disabled power of
+ some i2c device
+ */
+ em28xx_wake_i2c(dev);
- if (urb_init) {
dev->capture_type = -1;
rc = em28xx_init_usb_xfer(dev, EM28XX_ANALOG_MODE,
dev->analog_xfer_bulk,
em28xx_urb_data_copy);
if (rc < 0)
goto fail;
- }
- buf->vb.state = VIDEOBUF_PREPARED;
- return 0;
+ /*
+ * djh: it's not clear whether this code is still needed. I'm
+ * leaving it in here for now entirely out of concern for
+ * backward compatibility (the old code did it)
+ */
+
+ /* Ask tuner to go to analog or radio mode */
+ memset(&f, 0, sizeof(f));
+ f.frequency = dev->ctl_freq;
+ if (vq->owner && vq->owner->vdev->vfl_type == VFL_TYPE_RADIO)
+ f.type = V4L2_TUNER_RADIO;
+ else
+ f.type = V4L2_TUNER_ANALOG_TV;
+ v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_frequency, &f);
+ }
fail:
- free_buffer(vq, buf);
return rc;
}
-static void
-buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
+int em28xx_stop_streaming(struct vb2_queue *vq)
+{
+ struct em28xx *dev = vb2_get_drv_priv(vq);
+ struct em28xx_dmaqueue *vidq = &dev->vidq;
+ unsigned long flags = 0;
+
+ em28xx_videodbg("%s\n", __func__);
+
+ res_free(dev, vq->type);
+
+ if (dev->streaming_users-- == 1) {
+ /* Last active user, so shutdown all the URBS */
+ em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE);
+ }
+
+ spin_lock_irqsave(&dev->slock, flags);
+ while (!list_empty(&vidq->active)) {
+ struct em28xx_buffer *buf;
+ buf = list_entry(vidq->active.next, struct em28xx_buffer, list);
+ list_del(&buf->list);
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+ }
+ dev->usb_ctl.vid_buf = NULL;
+ spin_unlock_irqrestore(&dev->slock, flags);
+
+ return 0;
+}
+
+int em28xx_stop_vbi_streaming(struct vb2_queue *vq)
{
- struct em28xx_buffer *buf = container_of(vb,
- struct em28xx_buffer,
- vb);
- struct em28xx_fh *fh = vq->priv_data;
- struct em28xx *dev = fh->dev;
- struct em28xx_dmaqueue *vidq = &dev->vidq;
+ struct em28xx *dev = vb2_get_drv_priv(vq);
+ struct em28xx_dmaqueue *vbiq = &dev->vbiq;
+ unsigned long flags = 0;
+
+ em28xx_videodbg("%s\n", __func__);
+
+ res_free(dev, vq->type);
- buf->vb.state = VIDEOBUF_QUEUED;
- list_add_tail(&buf->vb.queue, &vidq->active);
+ if (dev->streaming_users-- == 1) {
+ /* Last active user, so shutdown all the URBS */
+ em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE);
+ }
+
+ spin_lock_irqsave(&dev->slock, flags);
+ while (!list_empty(&vbiq->active)) {
+ struct em28xx_buffer *buf;
+ buf = list_entry(vbiq->active.next, struct em28xx_buffer, list);
+ list_del(&buf->list);
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+ }
+ dev->usb_ctl.vbi_buf = NULL;
+ spin_unlock_irqrestore(&dev->slock, flags);
+ return 0;
}
-static void buffer_release(struct videobuf_queue *vq,
- struct videobuf_buffer *vb)
+static void
+buffer_queue(struct vb2_buffer *vb)
{
- struct em28xx_buffer *buf = container_of(vb,
- struct em28xx_buffer,
- vb);
- struct em28xx_fh *fh = vq->priv_data;
- struct em28xx *dev = (struct em28xx *)fh->dev;
+ struct em28xx *dev = vb2_get_drv_priv(vb->vb2_queue);
+ struct em28xx_buffer *buf = container_of(vb, struct em28xx_buffer, vb);
+ struct em28xx_dmaqueue *vidq = &dev->vidq;
+ unsigned long flags = 0;
- em28xx_isocdbg("em28xx: called buffer_release\n");
+ em28xx_videodbg("%s\n", __func__);
+ buf->mem = vb2_plane_vaddr(vb, 0);
+ buf->length = vb2_plane_size(vb, 0);
- free_buffer(vq, buf);
+ spin_lock_irqsave(&dev->slock, flags);
+ list_add_tail(&buf->list, &vidq->active);
+ spin_unlock_irqrestore(&dev->slock, flags);
}
-static struct videobuf_queue_ops em28xx_video_qops = {
- .buf_setup = buffer_setup,
+static struct vb2_ops em28xx_video_qops = {
+ .queue_setup = queue_setup,
.buf_prepare = buffer_prepare,
.buf_queue = buffer_queue,
- .buf_release = buffer_release,
+ .start_streaming = em28xx_start_analog_streaming,
+ .stop_streaming = em28xx_stop_streaming,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
};
+int em28xx_vb2_setup(struct em28xx *dev)
+{
+ int rc;
+ struct vb2_queue *q;
+
+ /* Setup Videobuf2 for Video capture */
+ q = &dev->vb_vidq;
+ q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR;
+ q->drv_priv = dev;
+ q->buf_struct_size = sizeof(struct em28xx_buffer);
+ q->ops = &em28xx_video_qops;
+ q->mem_ops = &vb2_vmalloc_memops;
+
+ rc = vb2_queue_init(q);
+ if (rc < 0)
+ return rc;
+
+ /* Setup Videobuf2 for VBI capture */
+ q = &dev->vb_vbiq;
+ q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
+ q->io_modes = VB2_READ | VB2_MMAP | VB2_USERPTR;
+ q->drv_priv = dev;
+ q->buf_struct_size = sizeof(struct em28xx_buffer);
+ q->ops = &em28xx_vbi_qops;
+ q->mem_ops = &vb2_vmalloc_memops;
+
+ rc = vb2_queue_init(q);
+ if (rc < 0)
+ return rc;
+
+ return 0;
+}
+
/********************* v4l2 interface **************************************/
static void video_mux(struct em28xx *dev, int index)
em28xx_audio_analog_set(dev);
}
-/* Usage lock check functions */
-static int res_get(struct em28xx_fh *fh, unsigned int bit)
-{
- struct em28xx *dev = fh->dev;
-
- if (fh->resources & bit)
- /* have it already allocated */
- return 1;
-
- /* is it free? */
- if (dev->resources & bit) {
- /* no, someone else uses it */
- return 0;
- }
- /* it's free, grab it */
- fh->resources |= bit;
- dev->resources |= bit;
- em28xx_videodbg("res: get %d\n", bit);
- return 1;
-}
-
-static int res_check(struct em28xx_fh *fh, unsigned int bit)
-{
- return fh->resources & bit;
-}
-
-static int res_locked(struct em28xx *dev, unsigned int bit)
-{
- return dev->resources & bit;
-}
-
-static void res_free(struct em28xx_fh *fh, unsigned int bits)
-{
- struct em28xx *dev = fh->dev;
-
- BUG_ON((fh->resources & bits) != bits);
-
- fh->resources &= ~bits;
- dev->resources &= ~bits;
- em28xx_videodbg("res: put %d\n", bits);
-}
-
-static int get_ressource(struct em28xx_fh *fh)
-{
- switch (fh->type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- return EM28XX_RESOURCE_VIDEO;
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- return EM28XX_RESOURCE_VBI;
- default:
- BUG();
- return 0;
- }
-}
-
void em28xx_ctrl_notify(struct v4l2_ctrl *ctrl, void *priv)
{
struct em28xx *dev = priv;
/* the em2800 can only scale down to 50% */
height = height > (3 * maxh / 4) ? maxh : maxh / 2;
width = width > (3 * maxw / 4) ? maxw : maxw / 2;
- /* MaxPacketSize for em2800 is too small to capture at full resolution
- * use half of maxw as the scaler can only scale to 50% */
+ /*
+ * MaxPacketSize for em2800 is too small to capture at full
+ * resolution use half of maxw as the scaler can only scale
+ * to 50%
+ */
if (width == maxw && height == maxh)
width /= 2;
} else {
/* set new image size */
get_scale(dev, dev->width, dev->height, &dev->hscale, &dev->vscale);
- em28xx_set_alternate(dev);
em28xx_resolution_set(dev);
return 0;
static int vidioc_s_fmt_vid_cap(struct file *file, void *priv,
struct v4l2_format *f)
{
- struct em28xx_fh *fh = priv;
- struct em28xx *dev = fh->dev;
- int rc;
+ struct em28xx *dev = video_drvdata(file);
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
+ if (dev->streaming_users > 0)
+ return -EBUSY;
vidioc_try_fmt_vid_cap(file, priv, f);
- if (videobuf_queue_is_busy(&fh->vb_vidq)) {
- em28xx_errdev("%s queue busy\n", __func__);
- return -EBUSY;
- }
-
return em28xx_set_video_format(dev, f->fmt.pix.pixelformat,
f->fmt.pix.width, f->fmt.pix.height);
}
if (rc < 0)
return rc;
- if (videobuf_queue_is_busy(&fh->vb_vidq)) {
- em28xx_errdev("%s queue busy\n", __func__);
+ if (dev->streaming_users > 0)
return -EBUSY;
- }
dev->norm = *norm;
return 0;
}
-static int vidioc_streamon(struct file *file, void *priv,
- enum v4l2_buf_type type)
-{
- struct em28xx_fh *fh = priv;
- struct em28xx *dev = fh->dev;
- int rc = -EINVAL;
-
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
-
- if (unlikely(type != fh->type))
- return -EINVAL;
-
- em28xx_videodbg("vidioc_streamon fh=%p t=%d fh->res=%d dev->res=%d\n",
- fh, type, fh->resources, dev->resources);
-
- if (unlikely(!res_get(fh, get_ressource(fh))))
- return -EBUSY;
-
- if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- rc = videobuf_streamon(&fh->vb_vidq);
- else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
- rc = videobuf_streamon(&fh->vb_vbiq);
-
- return rc;
-}
-
-static int vidioc_streamoff(struct file *file, void *priv,
- enum v4l2_buf_type type)
-{
- struct em28xx_fh *fh = priv;
- struct em28xx *dev = fh->dev;
- int rc;
-
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
-
- if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
- fh->type != V4L2_BUF_TYPE_VBI_CAPTURE)
- return -EINVAL;
- if (type != fh->type)
- return -EINVAL;
-
- em28xx_videodbg("vidioc_streamoff fh=%p t=%d fh->res=%d dev->res=%d\n",
- fh, type, fh->resources, dev->resources);
-
- if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- if (res_check(fh, EM28XX_RESOURCE_VIDEO)) {
- videobuf_streamoff(&fh->vb_vidq);
- res_free(fh, EM28XX_RESOURCE_VIDEO);
- }
- } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
- if (res_check(fh, EM28XX_RESOURCE_VBI)) {
- videobuf_streamoff(&fh->vb_vbiq);
- res_free(fh, EM28XX_RESOURCE_VBI);
- }
- }
-
- return 0;
-}
-
static int vidioc_querycap(struct file *file, void *priv,
struct v4l2_capability *cap)
{
return 0;
}
-static int vidioc_reqbufs(struct file *file, void *priv,
- struct v4l2_requestbuffers *rb)
-{
- struct em28xx_fh *fh = priv;
- struct em28xx *dev = fh->dev;
- int rc;
-
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
-
- if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return videobuf_reqbufs(&fh->vb_vidq, rb);
- else
- return videobuf_reqbufs(&fh->vb_vbiq, rb);
-}
-
-static int vidioc_querybuf(struct file *file, void *priv,
- struct v4l2_buffer *b)
-{
- struct em28xx_fh *fh = priv;
- struct em28xx *dev = fh->dev;
- int rc;
-
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
-
- if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return videobuf_querybuf(&fh->vb_vidq, b);
- else {
- /* FIXME: I'm not sure yet whether this is a bug in zvbi or
- the videobuf framework, but we probably shouldn't be
- returning a buffer larger than that which was asked for.
- At a minimum, it causes a crash in zvbi since it does
- a memcpy based on the source buffer length */
- int result = videobuf_querybuf(&fh->vb_vbiq, b);
- b->length = dev->vbi_width * dev->vbi_height * 2;
-
- return result;
- }
-}
-
-static int vidioc_qbuf(struct file *file, void *priv, struct v4l2_buffer *b)
-{
- struct em28xx_fh *fh = priv;
- struct em28xx *dev = fh->dev;
- int rc;
-
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
-
- if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return videobuf_qbuf(&fh->vb_vidq, b);
- else
- return videobuf_qbuf(&fh->vb_vbiq, b);
-}
-
-static int vidioc_dqbuf(struct file *file, void *priv, struct v4l2_buffer *b)
-{
- struct em28xx_fh *fh = priv;
- struct em28xx *dev = fh->dev;
- int rc;
-
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
-
- if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return videobuf_dqbuf(&fh->vb_vidq, b, file->f_flags &
- O_NONBLOCK);
- else
- return videobuf_dqbuf(&fh->vb_vbiq, b, file->f_flags &
- O_NONBLOCK);
-}
-
/* ----------------------------------------------------------- */
/* RADIO ESPECIFIC IOCTLS */
/* ----------------------------------------------------------- */
*/
static int em28xx_v4l2_open(struct file *filp)
{
- int errCode = 0, radio = 0;
struct video_device *vdev = video_devdata(filp);
struct em28xx *dev = video_drvdata(filp);
enum v4l2_buf_type fh_type = 0;
struct em28xx_fh *fh;
- enum v4l2_field field;
switch (vdev->vfl_type) {
case VFL_TYPE_GRABBER:
case VFL_TYPE_VBI:
fh_type = V4L2_BUF_TYPE_VBI_CAPTURE;
break;
- case VFL_TYPE_RADIO:
- radio = 1;
- break;
}
em28xx_videodbg("open dev=%s type=%s users=%d\n",
}
v4l2_fh_init(&fh->fh, vdev);
fh->dev = dev;
- fh->radio = radio;
fh->type = fh_type;
filp->private_data = fh;
if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE && dev->users == 0) {
em28xx_set_mode(dev, EM28XX_ANALOG_MODE);
- em28xx_set_alternate(dev);
em28xx_resolution_set(dev);
/* Needed, since GPIO might have disabled power of
em28xx_wake_i2c(dev);
}
- if (fh->radio) {
+
+ if (vdev->vfl_type == VFL_TYPE_RADIO) {
em28xx_videodbg("video_open: setting radio device\n");
v4l2_device_call_all(&dev->v4l2_dev, 0, tuner, s_radio);
}
dev->users++;
- if (dev->progressive)
- field = V4L2_FIELD_NONE;
- else
- field = V4L2_FIELD_INTERLACED;
-
- videobuf_queue_vmalloc_init(&fh->vb_vidq, &em28xx_video_qops,
- NULL, &dev->slock,
- V4L2_BUF_TYPE_VIDEO_CAPTURE, field,
- sizeof(struct em28xx_buffer), fh, &dev->lock);
-
- videobuf_queue_vmalloc_init(&fh->vb_vbiq, &em28xx_vbi_qops,
- NULL, &dev->slock,
- V4L2_BUF_TYPE_VBI_CAPTURE,
- V4L2_FIELD_SEQ_TB,
- sizeof(struct em28xx_buffer), fh, &dev->lock);
mutex_unlock(&dev->lock);
v4l2_fh_add(&fh->fh);
- return errCode;
+ return 0;
}
/*
em28xx_videodbg("users=%d\n", dev->users);
mutex_lock(&dev->lock);
- if (res_check(fh, EM28XX_RESOURCE_VIDEO)) {
- videobuf_stop(&fh->vb_vidq);
- res_free(fh, EM28XX_RESOURCE_VIDEO);
- }
-
- if (res_check(fh, EM28XX_RESOURCE_VBI)) {
- videobuf_stop(&fh->vb_vbiq);
- res_free(fh, EM28XX_RESOURCE_VBI);
- }
+ vb2_fop_release(filp);
if (dev->users == 1) {
/* the device is already disconnect,
kfree(dev->alt_max_pkt_size_isoc);
mutex_unlock(&dev->lock);
kfree(dev);
- kfree(fh);
return 0;
}
v4l2_device_call_all(&dev->v4l2_dev, 0, core, s_power, 0);
/* do this before setting alternate! */
- em28xx_uninit_usb_xfer(dev, EM28XX_ANALOG_MODE);
em28xx_set_mode(dev, EM28XX_SUSPEND);
/* set alternate 0 */
"0 (error=%i)\n", errCode);
}
}
- v4l2_fh_del(&fh->fh);
- v4l2_fh_exit(&fh->fh);
- videobuf_mmap_free(&fh->vb_vidq);
- videobuf_mmap_free(&fh->vb_vbiq);
- kfree(fh);
dev->users--;
mutex_unlock(&dev->lock);
return 0;
}
-/*
- * em28xx_v4l2_read()
- * will allocate buffers when called for the first time
- */
-static ssize_t
-em28xx_v4l2_read(struct file *filp, char __user *buf, size_t count,
- loff_t *pos)
-{
- struct em28xx_fh *fh = filp->private_data;
- struct em28xx *dev = fh->dev;
- int rc;
-
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
-
- if (mutex_lock_interruptible(&dev->lock))
- return -ERESTARTSYS;
- /* FIXME: read() is not prepared to allow changing the video
- resolution while streaming. Seems a bug at em28xx_set_fmt
- */
-
- if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- if (res_locked(dev, EM28XX_RESOURCE_VIDEO))
- rc = -EBUSY;
- else
- rc = videobuf_read_stream(&fh->vb_vidq, buf, count, pos, 0,
- filp->f_flags & O_NONBLOCK);
- } else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
- if (!res_get(fh, EM28XX_RESOURCE_VBI))
- rc = -EBUSY;
- else
- rc = videobuf_read_stream(&fh->vb_vbiq, buf, count, pos, 0,
- filp->f_flags & O_NONBLOCK);
- }
- mutex_unlock(&dev->lock);
-
- return rc;
-}
-
-/*
- * em28xx_poll()
- * will allocate buffers when called for the first time
- */
-static unsigned int em28xx_poll(struct file *filp, poll_table *wait)
-{
- struct em28xx_fh *fh = filp->private_data;
- unsigned long req_events = poll_requested_events(wait);
- struct em28xx *dev = fh->dev;
- unsigned int res = 0;
- int rc;
-
- rc = check_dev(dev);
- if (rc < 0)
- return DEFAULT_POLLMASK;
-
- if (v4l2_event_pending(&fh->fh))
- res = POLLPRI;
- else if (req_events & POLLPRI)
- poll_wait(filp, &fh->fh.wait, wait);
-
- if (req_events & (POLLIN | POLLRDNORM)) {
- if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE) {
- if (!res_get(fh, EM28XX_RESOURCE_VIDEO))
- return res | POLLERR;
- return videobuf_poll_stream(filp, &fh->vb_vidq, wait);
- }
- if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) {
- if (!res_get(fh, EM28XX_RESOURCE_VBI))
- return res | POLLERR;
- return res | videobuf_poll_stream(filp, &fh->vb_vbiq, wait);
- }
- }
- return res;
-}
-
-static unsigned int em28xx_v4l2_poll(struct file *filp, poll_table *wait)
-{
- struct em28xx_fh *fh = filp->private_data;
- struct em28xx *dev = fh->dev;
- unsigned int res;
-
- mutex_lock(&dev->lock);
- res = em28xx_poll(filp, wait);
- mutex_unlock(&dev->lock);
- return res;
-}
-
-/*
- * em28xx_v4l2_mmap()
- */
-static int em28xx_v4l2_mmap(struct file *filp, struct vm_area_struct *vma)
-{
- struct em28xx_fh *fh = filp->private_data;
- struct em28xx *dev = fh->dev;
- int rc;
-
- rc = check_dev(dev);
- if (rc < 0)
- return rc;
-
- if (mutex_lock_interruptible(&dev->lock))
- return -ERESTARTSYS;
- if (fh->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- rc = videobuf_mmap_mapper(&fh->vb_vidq, vma);
- else if (fh->type == V4L2_BUF_TYPE_VBI_CAPTURE)
- rc = videobuf_mmap_mapper(&fh->vb_vbiq, vma);
- mutex_unlock(&dev->lock);
-
- em28xx_videodbg("vma start=0x%08lx, size=%ld, ret=%d\n",
- (unsigned long)vma->vm_start,
- (unsigned long)vma->vm_end-(unsigned long)vma->vm_start,
- rc);
-
- return rc;
-}
-
static const struct v4l2_file_operations em28xx_v4l_fops = {
.owner = THIS_MODULE,
.open = em28xx_v4l2_open,
.release = em28xx_v4l2_close,
- .read = em28xx_v4l2_read,
- .poll = em28xx_v4l2_poll,
- .mmap = em28xx_v4l2_mmap,
+ .read = vb2_fop_read,
+ .poll = vb2_fop_poll,
+ .mmap = vb2_fop_mmap,
.unlocked_ioctl = video_ioctl2,
};
.vidioc_s_audio = vidioc_s_audio,
.vidioc_cropcap = vidioc_cropcap,
- .vidioc_reqbufs = vidioc_reqbufs,
- .vidioc_querybuf = vidioc_querybuf,
- .vidioc_qbuf = vidioc_qbuf,
- .vidioc_dqbuf = vidioc_dqbuf,
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+
.vidioc_g_std = vidioc_g_std,
.vidioc_querystd = vidioc_querystd,
.vidioc_s_std = vidioc_s_std,
.vidioc_enum_input = vidioc_enum_input,
.vidioc_g_input = vidioc_g_input,
.vidioc_s_input = vidioc_s_input,
- .vidioc_streamon = vidioc_streamon,
- .vidioc_streamoff = vidioc_streamoff,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_g_tuner = vidioc_g_tuner,
.vidioc_s_tuner = vidioc_s_tuner,
.vidioc_g_frequency = vidioc_g_frequency,
static const struct video_device em28xx_video_template = {
.fops = &em28xx_v4l_fops,
- .release = video_device_release,
+ .release = video_device_release_empty,
.ioctl_ops = &video_ioctl_ops,
.tvnorms = V4L2_STD_ALL,
*vfd = *template;
vfd->v4l2_dev = &dev->v4l2_dev;
- vfd->release = video_device_release;
vfd->debug = video_debug;
vfd->lock = &dev->lock;
set_bit(V4L2_FL_USE_FH_PRIO, &vfd->flags);
dev->format = &format[0];
maxw = norm_maxw(dev);
- /* MaxPacketSize for em2800 is too small to capture at full resolution
- * use half of maxw as the scaler can only scale to 50% */
- if (dev->board.is_em2800)
- maxw /= 2;
+ /* MaxPacketSize for em2800 is too small to capture at full resolution
+ * use half of maxw as the scaler can only scale to 50% */
+ if (dev->board.is_em2800)
+ maxw /= 2;
em28xx_set_video_format(dev, format[0].fourcc,
maxw, norm_maxh(dev));
em28xx_errdev("cannot allocate video_device.\n");
return -ENODEV;
}
+ dev->vdev->queue = &dev->vb_vidq;
+ dev->vdev->queue->lock = &dev->vb_queue_lock;
/* register v4l2 video video_device */
ret = video_register_device(dev->vdev, VFL_TYPE_GRABBER,
dev->vbi_dev = em28xx_vdev_init(dev, &em28xx_video_template,
"vbi");
+ dev->vbi_dev->queue = &dev->vb_vbiq;
+ dev->vbi_dev->queue->lock = &dev->vb_vbi_queue_lock;
+
/* register v4l2 vbi video_device */
ret = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
vbi_nr[dev->devno]);
projects / linux.git / commitdiff