config VIDEO_SAA7146_VV
tristate
depends on VIDEO_DEV
- select VIDEOBUF_DMA_SG
+ select VIDEOBUF2_DMA_SG
select VIDEO_SAA7146
/********************************************************************************/
-/* common dma functions */
-
-void saa7146_dma_free(struct saa7146_dev *dev,struct videobuf_queue *q,
- struct saa7146_buf *buf)
-{
- struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
- DEB_EE("dev:%p, buf:%p\n", dev, buf);
-
- videobuf_waiton(q, &buf->vb, 0, 0);
- videobuf_dma_unmap(q->dev, dma);
- videobuf_dma_free(dma);
- buf->vb.state = VIDEOBUF_NEEDS_INIT;
-}
-
-
-/********************************************************************************/
/* common buffer functions */
int saa7146_buffer_queue(struct saa7146_dev *dev,
DEB_D("immediately activating buffer %p\n", buf);
buf->activate(dev,buf,NULL);
} else {
- list_add_tail(&buf->vb.queue,&q->queue);
- buf->vb.state = VIDEOBUF_QUEUED;
+ list_add_tail(&buf->list, &q->queue);
DEB_D("adding buffer %p to queue. (active buffer present)\n",
buf);
}
struct saa7146_dmaqueue *q,
int state)
{
+ struct saa7146_vv *vv = dev->vv_data;
+ struct saa7146_buf *buf = q->curr;
+
assert_spin_locked(&dev->slock);
DEB_EE("dev:%p, dmaq:%p, state:%d\n", dev, q, state);
DEB_EE("q->curr:%p\n", q->curr);
/* finish current buffer */
- if (NULL == q->curr) {
+ if (!buf) {
DEB_D("aiii. no current buffer\n");
return;
}
- q->curr->vb.state = state;
- q->curr->vb.ts = ktime_get_ns();
- wake_up(&q->curr->vb.done);
-
q->curr = NULL;
+ buf->vb.vb2_buf.timestamp = ktime_get_ns();
+ if (vv->video_fmt.field == V4L2_FIELD_ALTERNATE)
+ buf->vb.field = vv->last_field;
+ else if (vv->video_fmt.field == V4L2_FIELD_ANY)
+ buf->vb.field = (vv->video_fmt.height > vv->standard->v_max_out / 2)
+ ? V4L2_FIELD_INTERLACED
+ : V4L2_FIELD_BOTTOM;
+ else
+ buf->vb.field = vv->video_fmt.field;
+ buf->vb.sequence = vv->seqnr++;
+ vb2_buffer_done(&buf->vb.vb2_buf, state);
}
void saa7146_buffer_next(struct saa7146_dev *dev,
assert_spin_locked(&dev->slock);
if (!list_empty(&q->queue)) {
/* activate next one from queue */
- buf = list_entry(q->queue.next,struct saa7146_buf,vb.queue);
- list_del(&buf->vb.queue);
+ buf = list_entry(q->queue.next, struct saa7146_buf, list);
+ list_del(&buf->list);
if (!list_empty(&q->queue))
- next = list_entry(q->queue.next,struct saa7146_buf, vb.queue);
+ next = list_entry(q->queue.next, struct saa7146_buf, list);
q->curr = buf;
DEB_INT("next buffer: buf:%p, prev:%p, next:%p\n",
buf, q->queue.prev, q->queue.next);
spin_lock_irqsave(&dev->slock,flags);
if (q->curr) {
DEB_D("timeout on %p\n", q->curr);
- saa7146_buffer_finish(dev,q,VIDEOBUF_ERROR);
+ saa7146_buffer_finish(dev, q, VB2_BUF_STATE_ERROR);
}
/* we don't restart the transfer here like other drivers do. when
we mess up our capture logic. if a timeout occurs on another buffer,
then something is seriously broken before, so no need to buffer the
next capture IMHO... */
-/*
- saa7146_buffer_next(dev,q);
-*/
+
+ saa7146_buffer_next(dev, q, 0);
+
spin_unlock_irqrestore(&dev->slock,flags);
}
/********************************************************************************/
/* file operations */
-static int fops_open(struct file *file)
-{
- struct video_device *vdev = video_devdata(file);
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_fh *fh = NULL;
- int result = 0;
-
- DEB_EE("file:%p, dev:%s\n", file, video_device_node_name(vdev));
-
- if (mutex_lock_interruptible(vdev->lock))
- return -ERESTARTSYS;
-
- DEB_D("using: %p\n", dev);
-
- /* check if an extension is registered */
- if( NULL == dev->ext ) {
- DEB_S("no extension registered for this device\n");
- result = -ENODEV;
- goto out;
- }
-
- /* allocate per open data */
- fh = kzalloc(sizeof(*fh),GFP_KERNEL);
- if (NULL == fh) {
- DEB_S("cannot allocate memory for per open data\n");
- result = -ENOMEM;
- goto out;
- }
-
- v4l2_fh_init(&fh->fh, vdev);
-
- file->private_data = &fh->fh;
-
- if (vdev->vfl_type == VFL_TYPE_VBI) {
- DEB_S("initializing vbi...\n");
- if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE)
- result = saa7146_vbi_uops.open(dev,file);
- if (dev->ext_vv_data->vbi_fops.open)
- dev->ext_vv_data->vbi_fops.open(file);
- } else {
- DEB_S("initializing video...\n");
- result = saa7146_video_uops.open(dev,file);
- }
-
- if (0 != result) {
- goto out;
- }
-
- if( 0 == try_module_get(dev->ext->module)) {
- result = -EINVAL;
- goto out;
- }
-
- result = 0;
- v4l2_fh_add(&fh->fh);
-out:
- if (fh && result != 0) {
- kfree(fh);
- file->private_data = NULL;
- }
- mutex_unlock(vdev->lock);
- return result;
-}
-
-static int fops_release(struct file *file)
-{
- struct video_device *vdev = video_devdata(file);
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_fh *fh = file->private_data;
-
- DEB_EE("file:%p\n", file);
-
- mutex_lock(vdev->lock);
-
- if (vdev->vfl_type == VFL_TYPE_VBI) {
- if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE)
- saa7146_vbi_uops.release(dev,file);
- if (dev->ext_vv_data->vbi_fops.release)
- dev->ext_vv_data->vbi_fops.release(file);
- } else {
- saa7146_video_uops.release(dev,file);
- }
-
- v4l2_fh_del(&fh->fh);
- v4l2_fh_exit(&fh->fh);
- module_put(dev->ext->module);
- file->private_data = NULL;
- kfree(fh);
-
- mutex_unlock(vdev->lock);
-
- return 0;
-}
-
-static int fops_mmap(struct file *file, struct vm_area_struct * vma)
-{
- struct video_device *vdev = video_devdata(file);
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_fh *fh = file->private_data;
- struct videobuf_queue *q;
- int res;
-
- switch (vdev->vfl_type) {
- case VFL_TYPE_VIDEO: {
- DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, vma:%p\n",
- file, vma);
- q = &fh->video_q;
- break;
- }
- case VFL_TYPE_VBI: {
- DEB_EE("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, vma:%p\n",
- file, vma);
- if (dev->ext_vv_data->capabilities & V4L2_CAP_SLICED_VBI_OUTPUT)
- return -ENODEV;
- q = &fh->vbi_q;
- break;
- }
- default:
- BUG();
- }
-
- if (mutex_lock_interruptible(vdev->lock))
- return -ERESTARTSYS;
- res = videobuf_mmap_mapper(q, vma);
- mutex_unlock(vdev->lock);
- return res;
-}
-
-static __poll_t __fops_poll(struct file *file, struct poll_table_struct *wait)
-{
- struct video_device *vdev = video_devdata(file);
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_fh *fh = file->private_data;
- struct videobuf_buffer *buf = NULL;
- struct videobuf_queue *q;
- __poll_t res = v4l2_ctrl_poll(file, wait);
-
- DEB_EE("file:%p, poll:%p\n", file, wait);
-
- if (vdev->vfl_type == VFL_TYPE_VBI) {
- if (dev->ext_vv_data->capabilities & V4L2_CAP_SLICED_VBI_OUTPUT)
- return res | EPOLLOUT | EPOLLWRNORM;
- if( 0 == fh->vbi_q.streaming )
- return res | videobuf_poll_stream(file, &fh->vbi_q, wait);
- q = &fh->vbi_q;
- } else {
- DEB_D("using video queue\n");
- q = &fh->video_q;
- }
-
- if (!list_empty(&q->stream))
- buf = list_entry(q->stream.next, struct videobuf_buffer, stream);
-
- if (!buf) {
- DEB_D("buf == NULL!\n");
- return res | EPOLLERR;
- }
-
- poll_wait(file, &buf->done, wait);
- if (buf->state == VIDEOBUF_DONE || buf->state == VIDEOBUF_ERROR) {
- DEB_D("poll succeeded!\n");
- return res | EPOLLIN | EPOLLRDNORM;
- }
-
- DEB_D("nothing to poll for, buf->state:%d\n", buf->state);
- return res;
-}
-
-static __poll_t fops_poll(struct file *file, struct poll_table_struct *wait)
-{
- struct video_device *vdev = video_devdata(file);
- __poll_t res;
-
- mutex_lock(vdev->lock);
- res = __fops_poll(file, wait);
- mutex_unlock(vdev->lock);
- return res;
-}
-
-static ssize_t fops_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
-{
- struct video_device *vdev = video_devdata(file);
- struct saa7146_dev *dev = video_drvdata(file);
- int ret;
-
- switch (vdev->vfl_type) {
- case VFL_TYPE_VIDEO:
-/*
- DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, data:%p, count:%lun",
- file, data, (unsigned long)count);
-*/
- return saa7146_video_uops.read(file,data,count,ppos);
- case VFL_TYPE_VBI:
-/*
- DEB_EE("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, data:%p, count:%lu\n",
- file, data, (unsigned long)count);
-*/
- if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) {
- if (mutex_lock_interruptible(vdev->lock))
- return -ERESTARTSYS;
- ret = saa7146_vbi_uops.read(file, data, count, ppos);
- mutex_unlock(vdev->lock);
- return ret;
- }
- return -EINVAL;
- default:
- BUG();
- }
-}
-
static ssize_t fops_write(struct file *file, const char __user *data, size_t count, loff_t *ppos)
{
struct video_device *vdev = video_devdata(file);
struct saa7146_dev *dev = video_drvdata(file);
int ret;
- switch (vdev->vfl_type) {
- case VFL_TYPE_VIDEO:
+ if (vdev->vfl_type != VFL_TYPE_VBI || !dev->ext_vv_data->vbi_fops.write)
return -EINVAL;
- case VFL_TYPE_VBI:
- if (dev->ext_vv_data->vbi_fops.write) {
- if (mutex_lock_interruptible(vdev->lock))
- return -ERESTARTSYS;
- ret = dev->ext_vv_data->vbi_fops.write(file, data, count, ppos);
- mutex_unlock(vdev->lock);
- return ret;
- }
- return -EINVAL;
- default:
- BUG();
- }
+ if (mutex_lock_interruptible(vdev->lock))
+ return -ERESTARTSYS;
+ ret = dev->ext_vv_data->vbi_fops.write(file, data, count, ppos);
+ mutex_unlock(vdev->lock);
+ return ret;
}
static const struct v4l2_file_operations video_fops =
{
.owner = THIS_MODULE,
- .open = fops_open,
- .release = fops_release,
- .read = fops_read,
+ .open = v4l2_fh_open,
+ .release = vb2_fop_release,
+ .read = vb2_fop_read,
.write = fops_write,
- .poll = fops_poll,
- .mmap = fops_mmap,
+ .poll = vb2_fop_poll,
+ .mmap = vb2_fop_mmap,
.unlocked_ioctl = video_ioctl2,
};
int saa7146_register_device(struct video_device *vfd, struct saa7146_dev *dev,
char *name, int type)
{
+ struct vb2_queue *q;
int err;
int i;
DEB_EE("dev:%p, name:'%s', type:%d\n", dev, name, type);
vfd->fops = &video_fops;
- if (type == VFL_TYPE_VIDEO)
+ if (type == VFL_TYPE_VIDEO) {
vfd->ioctl_ops = &dev->ext_vv_data->vid_ops;
- else
+ q = &dev->vv_data->video_dmaq.q;
+ } else {
vfd->ioctl_ops = &dev->ext_vv_data->vbi_ops;
+ q = &dev->vv_data->vbi_dmaq.q;
+ }
vfd->release = video_device_release_empty;
vfd->lock = &dev->v4l2_lock;
vfd->v4l2_dev = &dev->v4l2_dev;
} else {
vfd->device_caps &= ~V4L2_CAP_VIDEO_CAPTURE;
}
+
+ q->type = type == VFL_TYPE_VIDEO ? V4L2_BUF_TYPE_VIDEO_CAPTURE : V4L2_BUF_TYPE_VBI_CAPTURE;
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->io_modes = VB2_MMAP | VB2_READ | VB2_DMABUF;
+ q->ops = type == VFL_TYPE_VIDEO ? &video_qops : &vbi_qops;
+ q->mem_ops = &vb2_dma_sg_memops;
+ q->drv_priv = dev;
+ q->gfp_flags = __GFP_DMA32;
+ q->buf_struct_size = sizeof(struct saa7146_buf);
+ q->lock = &dev->v4l2_lock;
+ q->min_buffers_needed = 2;
+ q->dev = &dev->pci->dev;
+ err = vb2_queue_init(q);
+ if (err)
+ return err;
+ vfd->queue = q;
+
video_set_drvdata(vfd, dev);
err = video_register_device(vfd, type, -1);
struct saa7146_buf *next)
{
struct saa7146_vv *vv = dev->vv_data;
- buf->vb.state = VIDEOBUF_ACTIVE;
DEB_VBI("dev:%p, buf:%p, next:%p\n", dev, buf, next);
saa7146_set_vbi_capture(dev,buf,next);
return 0;
}
-static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,enum v4l2_field field)
-{
- struct file *file = q->priv_data;
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_buf *buf = (struct saa7146_buf *)vb;
+/* ------------------------------------------------------------------ */
- int err = 0;
- int lines, llength, size;
+static int queue_setup(struct vb2_queue *q,
+ unsigned int *num_buffers, unsigned int *num_planes,
+ unsigned int sizes[], struct device *alloc_devs[])
+{
+ unsigned int size = 16 * 2 * vbi_pixel_to_capture;
- lines = 16 * 2 ; /* 2 fields */
- llength = vbi_pixel_to_capture;
- size = lines * llength;
+ if (*num_planes)
+ return sizes[0] < size ? -EINVAL : 0;
+ *num_planes = 1;
+ sizes[0] = size;
- DEB_VBI("vb:%p\n", vb);
+ return 0;
+}
- if (0 != buf->vb.baddr && buf->vb.bsize < size) {
- DEB_VBI("size mismatch\n");
- return -EINVAL;
- }
+static void buf_queue(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct vb2_queue *vq = vb->vb2_queue;
+ struct saa7146_dev *dev = vb2_get_drv_priv(vq);
+ struct saa7146_buf *buf = container_of(vbuf, struct saa7146_buf, vb);
+ unsigned long flags;
- if (buf->vb.size != size)
- saa7146_dma_free(dev,q,buf);
+ spin_lock_irqsave(&dev->slock, flags);
- if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
- struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
+ saa7146_buffer_queue(dev, &dev->vv_data->vbi_dmaq, buf);
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
- buf->vb.width = llength;
- buf->vb.height = lines;
- buf->vb.size = size;
- buf->vb.field = field; // FIXME: check this
+static int buf_init(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct saa7146_buf *buf = container_of(vbuf, struct saa7146_buf, vb);
+ struct sg_table *sgt = vb2_dma_sg_plane_desc(&buf->vb.vb2_buf, 0);
+ struct scatterlist *list = sgt->sgl;
+ int length = sgt->nents;
+ struct vb2_queue *vq = vb->vb2_queue;
+ struct saa7146_dev *dev = vb2_get_drv_priv(vq);
+ int ret;
- saa7146_pgtable_free(dev->pci, &buf->pt[2]);
- saa7146_pgtable_alloc(dev->pci, &buf->pt[2]);
-
- err = videobuf_iolock(q,&buf->vb, NULL);
- if (err)
- goto oops;
- err = saa7146_pgtable_build_single(dev->pci, &buf->pt[2],
- dma->sglist, dma->sglen);
- if (0 != err)
- return err;
- }
- buf->vb.state = VIDEOBUF_PREPARED;
buf->activate = buffer_activate;
- return 0;
-
- oops:
- DEB_VBI("error out\n");
- saa7146_dma_free(dev,q,buf);
+ saa7146_pgtable_alloc(dev->pci, &buf->pt[2]);
- return err;
+ ret = saa7146_pgtable_build_single(dev->pci, &buf->pt[2],
+ list, length);
+ if (ret)
+ saa7146_pgtable_free(dev->pci, &buf->pt[2]);
+ return ret;
}
-static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
+static int buf_prepare(struct vb2_buffer *vb)
{
- int llength,lines;
-
- lines = 16 * 2 ; /* 2 fields */
- llength = vbi_pixel_to_capture;
-
- *size = lines * llength;
- *count = 2;
-
- DEB_VBI("count:%d, size:%d\n", *count, *size);
+ unsigned int size = 16 * 2 * vbi_pixel_to_capture;
+ if (vb2_plane_size(vb, 0) < size)
+ return -EINVAL;
+ vb2_set_plane_payload(vb, 0, size);
return 0;
}
-static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
+static void buf_cleanup(struct vb2_buffer *vb)
{
- struct file *file = q->priv_data;
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_buf *buf = (struct saa7146_buf *)vb;
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct saa7146_buf *buf = container_of(vbuf, struct saa7146_buf, vb);
+ struct vb2_queue *vq = vb->vb2_queue;
+ struct saa7146_dev *dev = vb2_get_drv_priv(vq);
- DEB_VBI("vb:%p\n", vb);
- saa7146_buffer_queue(dev, &vv->vbi_dmaq, buf);
+ saa7146_pgtable_free(dev->pci, &buf->pt[2]);
}
-static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
+static void return_buffers(struct vb2_queue *q, int state)
{
- struct file *file = q->priv_data;
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_buf *buf = (struct saa7146_buf *)vb;
-
- DEB_VBI("vb:%p\n", vb);
- saa7146_dma_free(dev,q,buf);
+ struct saa7146_dev *dev = vb2_get_drv_priv(q);
+ struct saa7146_dmaqueue *dq = &dev->vv_data->vbi_dmaq;
+ struct saa7146_buf *buf;
+
+ if (dq->curr) {
+ buf = dq->curr;
+ dq->curr = NULL;
+ vb2_buffer_done(&buf->vb.vb2_buf, state);
+ }
+ while (!list_empty(&dq->queue)) {
+ buf = list_entry(dq->queue.next, struct saa7146_buf, list);
+ list_del(&buf->list);
+ vb2_buffer_done(&buf->vb.vb2_buf, state);
+ }
}
-static const struct videobuf_queue_ops vbi_qops = {
- .buf_setup = buffer_setup,
- .buf_prepare = buffer_prepare,
- .buf_queue = buffer_queue,
- .buf_release = buffer_release,
-};
-
-/* ------------------------------------------------------------------ */
-
-static void vbi_stop(struct saa7146_fh *fh, struct file *file)
+static void vbi_stop(struct saa7146_dev *dev)
{
- struct saa7146_dev *dev = video_drvdata(file);
struct saa7146_vv *vv = dev->vv_data;
unsigned long flags;
- DEB_VBI("dev:%p, fh:%p\n", dev, fh);
+ DEB_VBI("dev:%p\n", dev);
spin_lock_irqsave(&dev->slock,flags);
/* shut down dma 3 transfers */
saa7146_write(dev, MC1, MASK_20);
- if (vv->vbi_dmaq.curr)
- saa7146_buffer_finish(dev, &vv->vbi_dmaq, VIDEOBUF_DONE);
-
- videobuf_queue_cancel(&fh->vbi_q);
-
- vv->vbi_streaming = NULL;
-
del_timer(&vv->vbi_dmaq.timeout);
del_timer(&vv->vbi_read_timeout);
static void vbi_read_timeout(struct timer_list *t)
{
struct saa7146_vv *vv = from_timer(vv, t, vbi_read_timeout);
- struct file *file = vv->vbi_read_timeout_file;
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_fh *fh = file->private_data;
-
- DEB_VBI("dev:%p, fh:%p\n", dev, fh);
-
- vbi_stop(fh, file);
-}
+ struct saa7146_dev *dev = vv->vbi_dmaq.dev;
-static void vbi_init(struct saa7146_dev *dev, struct saa7146_vv *vv)
-{
DEB_VBI("dev:%p\n", dev);
- INIT_LIST_HEAD(&vv->vbi_dmaq.queue);
-
- timer_setup(&vv->vbi_dmaq.timeout, saa7146_buffer_timeout, 0);
- vv->vbi_dmaq.dev = dev;
-
- init_waitqueue_head(&vv->vbi_wq);
+ vbi_stop(dev);
}
-static int vbi_open(struct saa7146_dev *dev, struct file *file)
+static int vbi_begin(struct saa7146_dev *dev)
{
- struct saa7146_fh *fh = file->private_data;
struct saa7146_vv *vv = dev->vv_data;
-
u32 arbtr_ctrl = saa7146_read(dev, PCI_BT_V1);
int ret = 0;
- DEB_VBI("dev:%p, fh:%p\n", dev, fh);
+ DEB_VBI("dev:%p\n", dev);
ret = saa7146_res_get(dev, RESOURCE_DMA3_BRS);
if (0 == ret) {
saa7146_write(dev, PCI_BT_V1, arbtr_ctrl);
saa7146_write(dev, MC2, (MASK_04|MASK_20));
- videobuf_queue_sg_init(&fh->vbi_q, &vbi_qops,
- &dev->pci->dev, &dev->slock,
- V4L2_BUF_TYPE_VBI_CAPTURE,
- V4L2_FIELD_SEQ_TB, // FIXME: does this really work?
- sizeof(struct saa7146_buf),
- file, &dev->v4l2_lock);
-
vv->vbi_read_timeout.function = vbi_read_timeout;
- vv->vbi_read_timeout_file = file;
/* initialize the brs */
if ( 0 != (SAA7146_USE_PORT_B_FOR_VBI & dev->ext_vv_data->flags)) {
return 0;
}
-static void vbi_close(struct saa7146_dev *dev, struct file *file)
+static int start_streaming(struct vb2_queue *q, unsigned int count)
{
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_vv *vv = dev->vv_data;
- DEB_VBI("dev:%p, fh:%p\n", dev, fh);
+ struct saa7146_dev *dev = vb2_get_drv_priv(q);
+ int ret;
+
+ if (!vb2_is_streaming(&dev->vv_data->vbi_dmaq.q))
+ dev->vv_data->seqnr = 0;
+ ret = vbi_begin(dev);
+ if (ret)
+ return_buffers(q, VB2_BUF_STATE_QUEUED);
+ return ret;
+}
- if( fh == vv->vbi_streaming ) {
- vbi_stop(fh, file);
- }
+static void stop_streaming(struct vb2_queue *q)
+{
+ struct saa7146_dev *dev = vb2_get_drv_priv(q);
+
+ vbi_stop(dev);
+ return_buffers(q, VB2_BUF_STATE_ERROR);
saa7146_res_free(dev, RESOURCE_DMA3_BRS);
}
+const struct vb2_ops vbi_qops = {
+ .queue_setup = queue_setup,
+ .buf_queue = buf_queue,
+ .buf_init = buf_init,
+ .buf_prepare = buf_prepare,
+ .buf_cleanup = buf_cleanup,
+ .start_streaming = start_streaming,
+ .stop_streaming = stop_streaming,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+};
+
+/* ------------------------------------------------------------------ */
+
+static void vbi_init(struct saa7146_dev *dev, struct saa7146_vv *vv)
+{
+ DEB_VBI("dev:%p\n", dev);
+
+ INIT_LIST_HEAD(&vv->vbi_dmaq.queue);
+
+ timer_setup(&vv->vbi_dmaq.timeout, saa7146_buffer_timeout, 0);
+ vv->vbi_dmaq.dev = dev;
+
+ init_waitqueue_head(&vv->vbi_wq);
+}
+
static void vbi_irq_done(struct saa7146_dev *dev, unsigned long status)
{
struct saa7146_vv *vv = dev->vv_data;
if (vv->vbi_dmaq.curr) {
DEB_VBI("dev:%p, curr:%p\n", dev, vv->vbi_dmaq.curr);
- /* this must be += 2, one count for each field */
- vv->vbi_fieldcount+=2;
- vv->vbi_dmaq.curr->vb.field_count = vv->vbi_fieldcount;
- saa7146_buffer_finish(dev, &vv->vbi_dmaq, VIDEOBUF_DONE);
+ saa7146_buffer_finish(dev, &vv->vbi_dmaq, VB2_BUF_STATE_DONE);
} else {
DEB_VBI("dev:%p\n", dev);
}
spin_unlock(&dev->slock);
}
-static ssize_t vbi_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
-{
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_vv *vv = dev->vv_data;
- ssize_t ret = 0;
-
- DEB_VBI("dev:%p, fh:%p\n", dev, fh);
-
- if( NULL == vv->vbi_streaming ) {
- // fixme: check if dma3 is available
- // fixme: activate vbi engine here if necessary. (really?)
- vv->vbi_streaming = fh;
- }
-
- if( fh != vv->vbi_streaming ) {
- DEB_VBI("open %p is already using vbi capture\n",
- vv->vbi_streaming);
- return -EBUSY;
- }
-
- mod_timer(&vv->vbi_read_timeout, jiffies+BUFFER_TIMEOUT);
- ret = videobuf_read_stream(&fh->vbi_q, data, count, ppos, 1,
- file->f_flags & O_NONBLOCK);
-/*
- printk("BASE_ODD3: 0x%08x\n", saa7146_read(dev, BASE_ODD3));
- printk("BASE_EVEN3: 0x%08x\n", saa7146_read(dev, BASE_EVEN3));
- printk("PROT_ADDR3: 0x%08x\n", saa7146_read(dev, PROT_ADDR3));
- printk("PITCH3: 0x%08x\n", saa7146_read(dev, PITCH3));
- printk("BASE_PAGE3: 0x%08x\n", saa7146_read(dev, BASE_PAGE3));
- printk("NUM_LINE_BYTE3: 0x%08x\n", saa7146_read(dev, NUM_LINE_BYTE3));
- printk("BRS_CTRL: 0x%08x\n", saa7146_read(dev, BRS_CTRL));
-*/
- return ret;
-}
-
const struct saa7146_use_ops saa7146_vbi_uops = {
.init = vbi_init,
- .open = vbi_open,
- .release = vbi_close,
.irq_done = vbi_irq_done,
- .read = vbi_read,
};
#include <linux/module.h>
#include <linux/kernel.h>
-static int max_memory = 32;
-
-module_param(max_memory, int, 0644);
-MODULE_PARM_DESC(max_memory, "maximum memory usage for capture buffers (default: 32Mb)");
-
-#define IS_CAPTURE_ACTIVE(fh) \
- (((vv->video_status & STATUS_CAPTURE) != 0) && (vv->video_fh == fh))
-
/* format descriptions for capture and preview */
static struct saa7146_format formats[] = {
{
{
struct saa7146_vv *vv = dev->vv_data;
struct pci_dev *pci = dev->pci;
- struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
- struct scatterlist *list = dma->sglist;
- int length = dma->sglen;
+ struct sg_table *sgt = vb2_dma_sg_plane_desc(&buf->vb.vb2_buf, 0);
+ struct scatterlist *list = sgt->sgl;
+ int length = sgt->nents;
struct v4l2_pix_format *pix = &vv->video_fmt;
struct saa7146_format *sfmt = saa7146_format_by_fourcc(dev, pix->pixelformat);
/* if we have a user buffer, the first page may not be
aligned to a page boundary. */
- pt1->offset = dma->sglist->offset;
+ pt1->offset = sgt->sgl->offset;
pt2->offset = pt1->offset + o1;
pt3->offset = pt1->offset + o2;
/********************************************************************************/
/* file operations */
-static int video_begin(struct saa7146_dev *dev, struct saa7146_fh *fh)
+static int video_begin(struct saa7146_dev *dev)
{
struct saa7146_vv *vv = dev->vv_data;
struct saa7146_format *fmt = NULL;
unsigned int resource;
int ret = 0;
- DEB_EE("dev:%p, fh:%p\n", dev, fh);
-
- if ((vv->video_status & STATUS_CAPTURE) != 0) {
- if (vv->video_fh == fh) {
- DEB_S("already capturing\n");
- return 0;
- }
- DEB_S("already capturing in another open\n");
- return -EBUSY;
- }
+ DEB_EE("dev:%p\n", dev);
fmt = saa7146_format_by_fourcc(dev, vv->video_fmt.pixelformat);
/* we need to have a valid format set here */
/* enable rps0 irqs */
SAA7146_IER_ENABLE(dev, MASK_27);
- vv->video_fh = fh;
- vv->video_status = STATUS_CAPTURE;
-
return 0;
}
-static int video_end(struct saa7146_dev *dev, struct saa7146_fh *fh)
+static void video_end(struct saa7146_dev *dev)
{
struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_dmaqueue *q = &vv->video_dmaq;
struct saa7146_format *fmt = NULL;
unsigned long flags;
unsigned int resource;
u32 dmas = 0;
- DEB_EE("dev:%p, fh:%p\n", dev, fh);
-
- if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) {
- DEB_S("not capturing\n");
- return 0;
- }
-
- if (vv->video_fh != fh) {
- DEB_S("capturing, but in another open\n");
- return -EBUSY;
- }
+ DEB_EE("dev:%p\n", dev);
fmt = saa7146_format_by_fourcc(dev, vv->video_fmt.pixelformat);
/* we need to have a valid format set here */
if (!fmt)
- return -EINVAL;
+ return;
if (0 != (fmt->flags & FORMAT_IS_PLANAR)) {
resource = RESOURCE_DMA1_HPS|RESOURCE_DMA2_CLP|RESOURCE_DMA3_BRS;
/* shut down all used video dma transfers */
saa7146_write(dev, MC1, dmas);
- if (q->curr)
- saa7146_buffer_finish(dev, q, VIDEOBUF_DONE);
-
spin_unlock_irqrestore(&dev->slock, flags);
- vv->video_fh = NULL;
- vv->video_status = 0;
-
saa7146_res_free(dev, resource);
-
- return 0;
}
static int vidioc_querycap(struct file *file, void *fh, struct v4l2_capability *cap)
case V4L2_CID_HFLIP:
/* fixme: we can support changing VFLIP and HFLIP here... */
- if ((vv->video_status & STATUS_CAPTURE))
+ if (vb2_is_busy(&vv->video_dmaq.q))
return -EBUSY;
vv->hflip = ctrl->val;
break;
case V4L2_CID_VFLIP:
- if ((vv->video_status & STATUS_CAPTURE))
+ if (vb2_is_busy(&vv->video_dmaq.q))
return -EBUSY;
vv->vflip = ctrl->val;
break;
return 0;
}
-static int vidioc_s_fmt_vid_cap(struct file *file, void *__fh, struct v4l2_format *f)
+static int vidioc_s_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f)
{
struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_fh *fh = __fh;
struct saa7146_vv *vv = dev->vv_data;
int err;
- DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p, fh:%p\n", dev, fh);
- if (IS_CAPTURE_ACTIVE(fh) != 0) {
+ DEB_EE("V4L2_BUF_TYPE_VIDEO_CAPTURE: dev:%p\n", dev);
+ if (vb2_is_busy(&vv->video_dmaq.q)) {
DEB_EE("streaming capture is active\n");
return -EBUSY;
}
return 0;
}
- /* the saa7146 supfhrts (used in conjunction with the saa7111a for example)
- PAL / NTSC / SECAM. if your hardware does not (or does more)
- -- override this function in your extension */
-/*
- case VIDIOC_ENUMSTD:
- {
- struct v4l2_standard *e = arg;
- if (e->index < 0 )
- return -EINVAL;
- if( e->index < dev->ext_vv_data->num_stds ) {
- DEB_EE("VIDIOC_ENUMSTD: index:%d\n", e->index);
- v4l2_video_std_construct(e, dev->ext_vv_data->stds[e->index].id, dev->ext_vv_data->stds[e->index].name);
- return 0;
- }
- return -EINVAL;
- }
- */
-
static int vidioc_s_std(struct file *file, void *fh, v4l2_std_id id)
{
struct saa7146_dev *dev = video_drvdata(file);
DEB_EE("VIDIOC_S_STD\n");
- if ((vv->video_status & STATUS_CAPTURE) == STATUS_CAPTURE) {
+ if (vb2_is_busy(&vv->video_dmaq.q) || vb2_is_busy(&vv->vbi_dmaq.q)) {
DEB_D("cannot change video standard while streaming capture is active\n");
return -EBUSY;
}
return 0;
}
-static int vidioc_reqbufs(struct file *file, void *__fh, struct v4l2_requestbuffers *b)
-{
- struct saa7146_fh *fh = __fh;
-
- if (b->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return videobuf_reqbufs(&fh->video_q, b);
- if (b->type == V4L2_BUF_TYPE_VBI_CAPTURE)
- return videobuf_reqbufs(&fh->vbi_q, b);
- return -EINVAL;
-}
-
-static int vidioc_querybuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
-{
- struct saa7146_fh *fh = __fh;
-
- if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return videobuf_querybuf(&fh->video_q, buf);
- if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE)
- return videobuf_querybuf(&fh->vbi_q, buf);
- return -EINVAL;
-}
-
-static int vidioc_qbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
-{
- struct saa7146_fh *fh = __fh;
-
- if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return videobuf_qbuf(&fh->video_q, buf);
- if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE)
- return videobuf_qbuf(&fh->vbi_q, buf);
- return -EINVAL;
-}
-
-static int vidioc_dqbuf(struct file *file, void *__fh, struct v4l2_buffer *buf)
-{
- struct saa7146_fh *fh = __fh;
-
- if (buf->type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return videobuf_dqbuf(&fh->video_q, buf, file->f_flags & O_NONBLOCK);
- if (buf->type == V4L2_BUF_TYPE_VBI_CAPTURE)
- return videobuf_dqbuf(&fh->vbi_q, buf, file->f_flags & O_NONBLOCK);
- return -EINVAL;
-}
-
-static int vidioc_streamon(struct file *file, void *__fh, enum v4l2_buf_type type)
-{
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_fh *fh = __fh;
- int err;
-
- DEB_D("VIDIOC_STREAMON, type:%d\n", type);
-
- err = video_begin(dev, fh);
- if (err)
- return err;
- if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return videobuf_streamon(&fh->video_q);
- if (type == V4L2_BUF_TYPE_VBI_CAPTURE)
- return videobuf_streamon(&fh->vbi_q);
- return -EINVAL;
-}
-
-static int vidioc_streamoff(struct file *file, void *__fh, enum v4l2_buf_type type)
-{
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_fh *fh = __fh;
- struct saa7146_vv *vv = dev->vv_data;
- int err;
-
- DEB_D("VIDIOC_STREAMOFF, type:%d\n", type);
-
- /* ugly: we need to copy some checks from video_end(),
- because videobuf_streamoff() relies on the capture running.
- check and fix this */
- if ((vv->video_status & STATUS_CAPTURE) != STATUS_CAPTURE) {
- DEB_S("not capturing\n");
- return 0;
- }
-
- if (vv->video_fh != fh) {
- DEB_S("capturing, but in another open\n");
- return -EBUSY;
- }
-
- err = -EINVAL;
- if (type == V4L2_BUF_TYPE_VIDEO_CAPTURE)
- err = videobuf_streamoff(&fh->video_q);
- else if (type == V4L2_BUF_TYPE_VBI_CAPTURE)
- err = videobuf_streamoff(&fh->vbi_q);
- if (0 != err) {
- DEB_D("warning: videobuf_streamoff() failed\n");
- video_end(dev, fh);
- } else {
- err = video_end(dev, fh);
- }
- return err;
-}
-
const struct v4l2_ioctl_ops saa7146_video_ioctl_ops = {
.vidioc_querycap = vidioc_querycap,
.vidioc_enum_fmt_vid_cap = vidioc_enum_fmt_vid_cap,
.vidioc_g_fmt_vid_cap = vidioc_g_fmt_vid_cap,
.vidioc_try_fmt_vid_cap = vidioc_try_fmt_vid_cap,
.vidioc_s_fmt_vid_cap = vidioc_s_fmt_vid_cap,
-
- .vidioc_reqbufs = vidioc_reqbufs,
- .vidioc_querybuf = vidioc_querybuf,
- .vidioc_qbuf = vidioc_qbuf,
- .vidioc_dqbuf = vidioc_dqbuf,
.vidioc_g_std = vidioc_g_std,
.vidioc_s_std = vidioc_s_std,
- .vidioc_streamon = vidioc_streamon,
- .vidioc_streamoff = vidioc_streamoff,
.vidioc_g_parm = vidioc_g_parm,
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
const struct v4l2_ioctl_ops saa7146_vbi_ioctl_ops = {
.vidioc_querycap = vidioc_querycap,
.vidioc_g_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
-
- .vidioc_reqbufs = vidioc_reqbufs,
- .vidioc_querybuf = vidioc_querybuf,
- .vidioc_qbuf = vidioc_qbuf,
- .vidioc_dqbuf = vidioc_dqbuf,
+ .vidioc_s_fmt_vbi_cap = vidioc_g_fmt_vbi_cap,
.vidioc_g_std = vidioc_g_std,
.vidioc_s_std = vidioc_s_std,
- .vidioc_streamon = vidioc_streamon,
- .vidioc_streamoff = vidioc_streamoff,
.vidioc_g_parm = vidioc_g_parm,
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_create_bufs = vb2_ioctl_create_bufs,
+ .vidioc_querybuf = vb2_ioctl_querybuf,
+ .vidioc_qbuf = vb2_ioctl_qbuf,
+ .vidioc_dqbuf = vb2_ioctl_dqbuf,
+ .vidioc_streamon = vb2_ioctl_streamon,
+ .vidioc_streamoff = vb2_ioctl_streamoff,
.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
};
{
struct saa7146_vv *vv = dev->vv_data;
- buf->vb.state = VIDEOBUF_ACTIVE;
saa7146_set_capture(dev,buf,next);
mod_timer(&vv->video_dmaq.timeout, jiffies+BUFFER_TIMEOUT);
saa7146_pgtable_free(dev->pci, &buf->pt[2]);
}
-static int buffer_prepare(struct videobuf_queue *q,
- struct videobuf_buffer *vb, enum v4l2_field field)
+static int queue_setup(struct vb2_queue *q,
+ unsigned int *num_buffers, unsigned int *num_planes,
+ unsigned int sizes[], struct device *alloc_devs[])
{
- struct file *file = q->priv_data;
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_buf *buf = (struct saa7146_buf *)vb;
- int size,err = 0;
-
- DEB_CAP("vbuf:%p\n", vb);
-
- /* sanity checks */
- if (vv->video_fmt.width < 48 ||
- vv->video_fmt.height < 32 ||
- vv->video_fmt.width > vv->standard->h_max_out ||
- vv->video_fmt.height > vv->standard->v_max_out) {
- DEB_D("w (%d) / h (%d) out of bounds\n",
- vv->video_fmt.width, vv->video_fmt.height);
- return -EINVAL;
- }
+ struct saa7146_dev *dev = vb2_get_drv_priv(q);
+ unsigned int size = dev->vv_data->video_fmt.sizeimage;
- size = vv->video_fmt.sizeimage;
- if (0 != buf->vb.baddr && buf->vb.bsize < size) {
- DEB_D("size mismatch\n");
- return -EINVAL;
- }
+ if (*num_planes)
+ return sizes[0] < size ? -EINVAL : 0;
+ *num_planes = 1;
+ sizes[0] = size;
- DEB_CAP("buffer_prepare [size=%dx%d,bytes=%d,fields=%s]\n",
- vv->video_fmt.width, vv->video_fmt.height,
- size, v4l2_field_names[vv->video_fmt.field]);
- if (buf->vb.width != vv->video_fmt.width ||
- buf->vb.bytesperline != vv->video_fmt.bytesperline ||
- buf->vb.height != vv->video_fmt.height ||
- buf->vb.size != size ||
- buf->vb.field != field ||
- buf->vb.field != vv->video_fmt.field) {
- saa7146_dma_free(dev,q,buf);
- }
+ return 0;
+}
- if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
- struct saa7146_format *sfmt;
+static void buf_queue(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct vb2_queue *vq = vb->vb2_queue;
+ struct saa7146_dev *dev = vb2_get_drv_priv(vq);
+ struct saa7146_buf *buf = container_of(vbuf, struct saa7146_buf, vb);
+ unsigned long flags;
- buf->vb.bytesperline = vv->video_fmt.bytesperline;
- buf->vb.width = vv->video_fmt.width;
- buf->vb.height = vv->video_fmt.height;
- buf->vb.size = size;
- buf->vb.field = field;
- buf->vb.field = vv->video_fmt.field;
+ spin_lock_irqsave(&dev->slock, flags);
- sfmt = saa7146_format_by_fourcc(dev, vv->video_fmt.pixelformat);
+ saa7146_buffer_queue(dev, &dev->vv_data->video_dmaq, buf);
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
- release_all_pagetables(dev, buf);
- if( 0 != IS_PLANAR(sfmt->trans)) {
- saa7146_pgtable_alloc(dev->pci, &buf->pt[0]);
- saa7146_pgtable_alloc(dev->pci, &buf->pt[1]);
- saa7146_pgtable_alloc(dev->pci, &buf->pt[2]);
- } else {
- saa7146_pgtable_alloc(dev->pci, &buf->pt[0]);
- }
+static int buf_init(struct vb2_buffer *vb)
+{
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct saa7146_buf *buf = container_of(vbuf, struct saa7146_buf, vb);
+ struct vb2_queue *vq = vb->vb2_queue;
+ struct saa7146_dev *dev = vb2_get_drv_priv(vq);
+ struct saa7146_vv *vv = dev->vv_data;
+ struct saa7146_format *sfmt;
+ int ret;
- err = videobuf_iolock(q, &buf->vb, NULL);
- if (err)
- goto oops;
- err = saa7146_pgtable_build(dev,buf);
- if (err)
- goto oops;
- }
- buf->vb.state = VIDEOBUF_PREPARED;
buf->activate = buffer_activate;
+ sfmt = saa7146_format_by_fourcc(dev, vv->video_fmt.pixelformat);
- return 0;
-
- oops:
- DEB_D("error out\n");
- saa7146_dma_free(dev,q,buf);
+ if (IS_PLANAR(sfmt->trans)) {
+ saa7146_pgtable_alloc(dev->pci, &buf->pt[0]);
+ saa7146_pgtable_alloc(dev->pci, &buf->pt[1]);
+ saa7146_pgtable_alloc(dev->pci, &buf->pt[2]);
+ } else {
+ saa7146_pgtable_alloc(dev->pci, &buf->pt[0]);
+ }
- return err;
+ ret = saa7146_pgtable_build(dev, buf);
+ if (ret)
+ release_all_pagetables(dev, buf);
+ return ret;
}
-static int buffer_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
+static int buf_prepare(struct vb2_buffer *vb)
{
- struct file *file = q->priv_data;
- struct saa7146_dev *dev = video_drvdata(file);
+ struct vb2_queue *vq = vb->vb2_queue;
+ struct saa7146_dev *dev = vb2_get_drv_priv(vq);
struct saa7146_vv *vv = dev->vv_data;
+ unsigned int size = vv->video_fmt.sizeimage;
- if (0 == *count || *count > MAX_SAA7146_CAPTURE_BUFFERS)
- *count = MAX_SAA7146_CAPTURE_BUFFERS;
-
- *size = vv->video_fmt.sizeimage;
-
- /* check if we exceed the "max_memory" parameter */
- if( (*count * *size) > (max_memory*1048576) ) {
- *count = (max_memory*1048576) / *size;
- }
-
- DEB_CAP("%d buffers, %d bytes each\n", *count, *size);
-
+ if (vb2_plane_size(vb, 0) < size)
+ return -EINVAL;
+ vb2_set_plane_payload(vb, 0, size);
return 0;
}
-static void buffer_queue(struct videobuf_queue *q, struct videobuf_buffer *vb)
+static void buf_cleanup(struct vb2_buffer *vb)
{
- struct file *file = q->priv_data;
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_vv *vv = dev->vv_data;
- struct saa7146_buf *buf = (struct saa7146_buf *)vb;
+ struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+ struct saa7146_buf *buf = container_of(vbuf, struct saa7146_buf, vb);
+ struct vb2_queue *vq = vb->vb2_queue;
+ struct saa7146_dev *dev = vb2_get_drv_priv(vq);
- DEB_CAP("vbuf:%p\n", vb);
- saa7146_buffer_queue(dev, &vv->video_dmaq, buf);
+ release_all_pagetables(dev, buf);
}
-static void buffer_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
+static void return_buffers(struct vb2_queue *q, int state)
{
- struct file *file = q->priv_data;
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_buf *buf = (struct saa7146_buf *)vb;
+ struct saa7146_dev *dev = vb2_get_drv_priv(q);
+ struct saa7146_dmaqueue *dq = &dev->vv_data->video_dmaq;
+ struct saa7146_buf *buf;
+
+ if (dq->curr) {
+ buf = dq->curr;
+ dq->curr = NULL;
+ vb2_buffer_done(&buf->vb.vb2_buf, state);
+ }
+ while (!list_empty(&dq->queue)) {
+ buf = list_entry(dq->queue.next, struct saa7146_buf, list);
+ list_del(&buf->list);
+ vb2_buffer_done(&buf->vb.vb2_buf, state);
+ }
+}
- DEB_CAP("vbuf:%p\n", vb);
+static int start_streaming(struct vb2_queue *q, unsigned int count)
+{
+ struct saa7146_dev *dev = vb2_get_drv_priv(q);
+ int ret;
+
+ if (!vb2_is_streaming(&dev->vv_data->video_dmaq.q))
+ dev->vv_data->seqnr = 0;
+ ret = video_begin(dev);
+ if (ret)
+ return_buffers(q, VB2_BUF_STATE_QUEUED);
+ return ret;
+}
- saa7146_dma_free(dev,q,buf);
+static void stop_streaming(struct vb2_queue *q)
+{
+ struct saa7146_dev *dev = vb2_get_drv_priv(q);
+ struct saa7146_dmaqueue *dq = &dev->vv_data->video_dmaq;
- release_all_pagetables(dev, buf);
+ del_timer(&dq->timeout);
+ video_end(dev);
+ return_buffers(q, VB2_BUF_STATE_ERROR);
}
-static const struct videobuf_queue_ops video_qops = {
- .buf_setup = buffer_setup,
- .buf_prepare = buffer_prepare,
- .buf_queue = buffer_queue,
- .buf_release = buffer_release,
+const struct vb2_ops video_qops = {
+ .queue_setup = queue_setup,
+ .buf_queue = buf_queue,
+ .buf_init = buf_init,
+ .buf_prepare = buf_prepare,
+ .buf_cleanup = buf_cleanup,
+ .start_streaming = start_streaming,
+ .stop_streaming = stop_streaming,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
};
/********************************************************************************/
vv->current_hps_sync = SAA7146_HPS_SYNC_PORT_A;
}
-
-static int video_open(struct saa7146_dev *dev, struct file *file)
-{
- struct saa7146_fh *fh = file->private_data;
-
- videobuf_queue_sg_init(&fh->video_q, &video_qops,
- &dev->pci->dev, &dev->slock,
- V4L2_BUF_TYPE_VIDEO_CAPTURE,
- V4L2_FIELD_INTERLACED,
- sizeof(struct saa7146_buf),
- file, &dev->v4l2_lock);
-
- return 0;
-}
-
-
-static void video_close(struct saa7146_dev *dev, struct file *file)
-{
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_vv *vv = dev->vv_data;
- struct videobuf_queue *q = &fh->video_q;
-
- if (IS_CAPTURE_ACTIVE(fh) != 0)
- video_end(dev, fh);
-
- videobuf_stop(q);
- /* hmm, why is this function declared void? */
-}
-
-
static void video_irq_done(struct saa7146_dev *dev, unsigned long st)
{
struct saa7146_vv *vv = dev->vv_data;
DEB_CAP("called\n");
/* only finish the buffer if we have one... */
- if( NULL != q->curr ) {
- saa7146_buffer_finish(dev,q,VIDEOBUF_DONE);
- }
+ if (q->curr)
+ saa7146_buffer_finish(dev, q, VB2_BUF_STATE_DONE);
saa7146_buffer_next(dev,q,0);
spin_unlock(&dev->slock);
}
-static ssize_t video_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
-{
- struct saa7146_dev *dev = video_drvdata(file);
- struct saa7146_fh *fh = file->private_data;
- struct saa7146_vv *vv = dev->vv_data;
- ssize_t ret = 0;
-
- DEB_EE("called\n");
-
- if ((vv->video_status & STATUS_CAPTURE) != 0) {
- /* fixme: should we allow read() captures while streaming capture? */
- if (vv->video_fh == fh) {
- DEB_S("already capturing\n");
- return -EBUSY;
- }
- DEB_S("already capturing in another open\n");
- return -EBUSY;
- }
-
- ret = video_begin(dev, fh);
- if( 0 != ret) {
- goto out;
- }
-
- ret = videobuf_read_one(&fh->video_q , data, count, ppos,
- file->f_flags & O_NONBLOCK);
- if (ret != 0) {
- video_end(dev, fh);
- } else {
- ret = video_end(dev, fh);
- }
-out:
- return ret;
-}
-
const struct saa7146_use_ops saa7146_video_uops = {
.init = video_init,
- .open = video_open,
- .release = video_close,
.irq_done = video_irq_done,
- .read = video_read,
};
{
struct saa7146_dev *dev = video_drvdata(file);
struct mxb *mxb = (struct mxb *)dev->ext_priv;
- struct saa7146_vv *vv = dev->vv_data;
if (f->tuner)
return -EINVAL;
tuner_call(mxb, tuner, g_frequency, &mxb->cur_freq);
if (mxb->cur_audinput == 0)
mxb_update_audmode(mxb);
-
- if (mxb->cur_input)
- return 0;
-
- /* hack: changing the frequency should invalidate the vbi-counter (=> alevt) */
- spin_lock(&dev->slock);
- vv->vbi_fieldcount = 0;
- spin_unlock(&dev->slock);
-
return 0;
}
#include <media/v4l2-ioctl.h>
#include <media/v4l2-fh.h>
#include <media/drv-intf/saa7146.h>
-#include <media/videobuf-dma-sg.h>
+#include <media/videobuf2-dma-sg.h>
#define MAX_SAA7146_CAPTURE_BUFFERS 32 /* arbitrary */
#define BUFFER_TIMEOUT (HZ/2) /* 0.5 seconds */
/* buffer for one video/vbi frame */
struct saa7146_buf {
/* common v4l buffer stuff -- must be first */
- struct videobuf_buffer vb;
+ struct vb2_v4l2_buffer vb;
+ struct list_head list;
/* saa7146 specific */
int (*activate)(struct saa7146_dev *dev,
struct saa7146_buf *curr;
struct list_head queue;
struct timer_list timeout;
+ struct vb2_queue q;
};
-/* per open data */
-struct saa7146_fh {
- /* Must be the first field! */
- struct v4l2_fh fh;
-
- /* video capture */
- struct videobuf_queue video_q;
-
- /* vbi capture */
- struct videobuf_queue vbi_q;
-};
-
-#define STATUS_CAPTURE 0x02
-
struct saa7146_vv
{
/* vbi capture */
struct saa7146_dmaqueue vbi_dmaq;
struct v4l2_vbi_format vbi_fmt;
struct timer_list vbi_read_timeout;
- struct file *vbi_read_timeout_file;
/* vbi workaround interrupt queue */
wait_queue_head_t vbi_wq;
- int vbi_fieldcount;
- struct saa7146_fh *vbi_streaming;
-
- int video_status;
- struct saa7146_fh *video_fh;
/* video capture */
struct saa7146_dmaqueue video_dmaq;
struct v4l2_pix_format video_fmt;
enum v4l2_field last_field;
+ u32 seqnr;
/* common: fixme? shouldn't this be in saa7146_fh?
(this leads to a more complicated question: shall the driver
int current_hps_source;
int current_hps_sync;
- unsigned int resources; /* resource management for device */
+ unsigned int resources; /* resource management for device */
};
/* flags */
struct saa7146_use_ops {
void (*init)(struct saa7146_dev *, struct saa7146_vv *);
- int(*open)(struct saa7146_dev *, struct file *);
- void (*release)(struct saa7146_dev *, struct file *);
void (*irq_done)(struct saa7146_dev *, unsigned long status);
- ssize_t (*read)(struct file *, char __user *, size_t, loff_t *);
};
/* from saa7146_fops.c */
void saa7146_buffer_next(struct saa7146_dev *dev, struct saa7146_dmaqueue *q,int vbi);
int saa7146_buffer_queue(struct saa7146_dev *dev, struct saa7146_dmaqueue *q, struct saa7146_buf *buf);
void saa7146_buffer_timeout(struct timer_list *t);
-void saa7146_dma_free(struct saa7146_dev* dev,struct videobuf_queue *q,
- struct saa7146_buf *buf);
int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv);
int saa7146_vv_release(struct saa7146_dev* dev);
extern const struct v4l2_ioctl_ops saa7146_video_ioctl_ops;
extern const struct v4l2_ioctl_ops saa7146_vbi_ioctl_ops;
extern const struct saa7146_use_ops saa7146_video_uops;
+extern const struct vb2_ops video_qops;
long saa7146_video_do_ioctl(struct file *file, unsigned int cmd, void *arg);
int saa7146_s_ctrl(struct v4l2_ctrl *ctrl);
/* from saa7146_vbi.c */
extern const struct saa7146_use_ops saa7146_vbi_uops;
+extern const struct vb2_ops vbi_qops;
/* resource management functions */
int saa7146_res_get(struct saa7146_dev *dev, unsigned int bit);
projects / platform / kernel / linux-starfive.git / commitdiff