struct cx23885_dmaqueue *q, u32 count)
{
struct cx23885_buffer *buf;
- int bc;
-
- for (bc = 0;; bc++) {
- if (list_empty(&q->active))
- break;
- buf = list_entry(q->active.next,
- struct cx23885_buffer, vb.queue);
-
- /* count comes from the hw and is is 16bit wide --
- * this trick handles wrap-arounds correctly for
- * up to 32767 buffers in flight... */
- if ((s16) (count - buf->count) < 0)
- break;
-
- v4l2_get_timestamp(&buf->vb.ts);
- dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.i,
- count, buf->count);
- buf->vb.state = VIDEOBUF_DONE;
- list_del(&buf->vb.queue);
- wake_up(&buf->vb.done);
- }
+
if (list_empty(&q->active))
- del_timer(&q->timeout);
- else
- mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
- if (bc != 1)
- printk(KERN_ERR "%s: %d buffers handled (should be 1)\n",
- __func__, bc);
+ return;
+ buf = list_entry(q->active.next,
+ struct cx23885_buffer, queue);
+
+ buf->vb.v4l2_buf.sequence = q->count++;
+ v4l2_get_timestamp(&buf->vb.v4l2_buf.timestamp);
+ dprintk(2, "[%p/%d] wakeup reg=%d buf=%d\n", buf, buf->vb.v4l2_buf.index,
+ count, q->count);
+ list_del(&buf->queue);
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_DONE);
}
int cx23885_set_tvnorm(struct cx23885_dev *dev, v4l2_std_id norm)
return vfd;
}
-/* ------------------------------------------------------------------- */
-/* resource management */
-
-static int res_get(struct cx23885_dev *dev, struct cx23885_fh *fh,
- unsigned int bit)
-{
- dprintk(1, "%s()\n", __func__);
- 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;
- dprintk(1, "res: get %d\n", bit);
- return 1;
-}
-
-static int res_check(struct cx23885_fh *fh, unsigned int bit)
-{
- return fh->resources & bit;
-}
-
-static int res_locked(struct cx23885_dev *dev, unsigned int bit)
-{
- return dev->resources & bit;
-}
-
-static void res_free(struct cx23885_dev *dev, struct cx23885_fh *fh,
- unsigned int bits)
-{
- BUG_ON((fh->resources & bits) != bits);
- dprintk(1, "%s()\n", __func__);
-
- fh->resources &= ~bits;
- dev->resources &= ~bits;
- dprintk(1, "res: put %d\n", bits);
-}
-
int cx23885_flatiron_write(struct cx23885_dev *dev, u8 reg, u8 data)
{
/* 8 bit registers, 8 bit values */
/* reset counter */
cx_write(VID_A_GPCNT_CTL, 3);
- q->count = 1;
+ q->count = 0;
/* enable irq */
cx23885_irq_add_enable(dev, 0x01);
return 0;
}
-
-static int cx23885_restart_video_queue(struct cx23885_dev *dev,
- struct cx23885_dmaqueue *q)
+static int queue_setup(struct vb2_queue *q, const struct v4l2_format *fmt,
+ unsigned int *num_buffers, unsigned int *num_planes,
+ unsigned int sizes[], void *alloc_ctxs[])
{
- struct cx23885_buffer *buf, *prev;
- struct list_head *item;
- dprintk(1, "%s()\n", __func__);
-
- if (!list_empty(&q->active)) {
- buf = list_entry(q->active.next, struct cx23885_buffer,
- vb.queue);
- dprintk(2, "restart_queue [%p/%d]: restart dma\n",
- buf, buf->vb.i);
- cx23885_start_video_dma(dev, q, buf);
- list_for_each(item, &q->active) {
- buf = list_entry(item, struct cx23885_buffer,
- vb.queue);
- buf->count = q->count++;
- }
- mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
- return 0;
- }
+ struct cx23885_dev *dev = q->drv_priv;
- prev = NULL;
- for (;;) {
- if (list_empty(&q->queued))
- return 0;
- buf = list_entry(q->queued.next, struct cx23885_buffer,
- vb.queue);
- if (NULL == prev) {
- list_move_tail(&buf->vb.queue, &q->active);
- cx23885_start_video_dma(dev, q, buf);
- buf->vb.state = VIDEOBUF_ACTIVE;
- buf->count = q->count++;
- mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
- dprintk(2, "[%p/%d] restart_queue - first active\n",
- buf, buf->vb.i);
-
- } else if (prev->vb.width == buf->vb.width &&
- prev->vb.height == buf->vb.height &&
- prev->fmt == buf->fmt) {
- list_move_tail(&buf->vb.queue, &q->active);
- buf->vb.state = VIDEOBUF_ACTIVE;
- buf->count = q->count++;
- prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
- prev->risc.jmp[2] = cpu_to_le32(0); /* Bits 63 - 32 */
- dprintk(2, "[%p/%d] restart_queue - move to active\n",
- buf, buf->vb.i);
- } else {
- return 0;
- }
- prev = buf;
- }
-}
-
-static int buffer_setup(struct videobuf_queue *q, unsigned int *count,
- unsigned int *size)
-{
- struct cx23885_fh *fh = q->priv_data;
- struct cx23885_dev *dev = fh->q_dev;
-
- *size = (dev->fmt->depth * dev->width * dev->height) >> 3;
- if (0 == *count)
- *count = 32;
- if (*size * *count > vid_limit * 1024 * 1024)
- *count = (vid_limit * 1024 * 1024) / *size;
+ *num_planes = 1;
+ sizes[0] = (dev->fmt->depth * dev->width * dev->height) >> 3;
return 0;
}
-static int buffer_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
- enum v4l2_field field)
+static int buffer_prepare(struct vb2_buffer *vb)
{
- struct cx23885_fh *fh = q->priv_data;
- struct cx23885_dev *dev = fh->q_dev;
+ struct cx23885_dev *dev = vb->vb2_queue->drv_priv;
struct cx23885_buffer *buf =
container_of(vb, struct cx23885_buffer, vb);
- int rc, init_buffer = 0;
u32 line0_offset, line1_offset;
- struct videobuf_dmabuf *dma = videobuf_to_dma(&buf->vb);
+ struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
int field_tff;
+ int ret;
- if (WARN_ON(NULL == dev->fmt))
- return -EINVAL;
+ buf->bpl = (dev->width * dev->fmt->depth) >> 3;
- if (dev->width < 48 || dev->width > norm_maxw(dev->tvnorm) ||
- dev->height < 32 || dev->height > norm_maxh(dev->tvnorm))
- return -EINVAL;
- buf->vb.size = (dev->width * dev->height * dev->fmt->depth) >> 3;
- if (0 != buf->vb.baddr && buf->vb.bsize < buf->vb.size)
+ if (vb2_plane_size(vb, 0) < dev->height * buf->bpl)
return -EINVAL;
+ vb2_set_plane_payload(vb, 0, dev->height * buf->bpl);
- if (buf->fmt != dev->fmt ||
- buf->vb.width != dev->width ||
- buf->vb.height != dev->height ||
- buf->vb.field != field) {
- buf->fmt = dev->fmt;
- buf->vb.width = dev->width;
- buf->vb.height = dev->height;
- buf->vb.field = field;
- init_buffer = 1;
- }
+ ret = dma_map_sg(&dev->pci->dev, sgt->sgl, sgt->nents, DMA_FROM_DEVICE);
+ if (!ret)
+ return -EIO;
- if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
- init_buffer = 1;
- rc = videobuf_iolock(q, &buf->vb, NULL);
- if (0 != rc)
- goto fail;
- }
+ switch (dev->field) {
+ case V4L2_FIELD_TOP:
+ cx23885_risc_buffer(dev->pci, &buf->risc,
+ sgt->sgl, 0, UNSET,
+ buf->bpl, 0, dev->height);
+ break;
+ case V4L2_FIELD_BOTTOM:
+ cx23885_risc_buffer(dev->pci, &buf->risc,
+ sgt->sgl, UNSET, 0,
+ buf->bpl, 0, dev->height);
+ break;
+ case V4L2_FIELD_INTERLACED:
+ if (dev->tvnorm & V4L2_STD_NTSC)
+ /* NTSC or */
+ field_tff = 1;
+ else
+ field_tff = 0;
+
+ if (cx23885_boards[dev->board].force_bff)
+ /* PAL / SECAM OR 888 in NTSC MODE */
+ field_tff = 0;
- if (init_buffer) {
- buf->bpl = buf->vb.width * buf->fmt->depth >> 3;
- switch (buf->vb.field) {
- case V4L2_FIELD_TOP:
- cx23885_risc_buffer(dev->pci, &buf->risc,
- dma->sglist, 0, UNSET,
- buf->bpl, 0, buf->vb.height);
- break;
- case V4L2_FIELD_BOTTOM:
- cx23885_risc_buffer(dev->pci, &buf->risc,
- dma->sglist, UNSET, 0,
- buf->bpl, 0, buf->vb.height);
- break;
- case V4L2_FIELD_INTERLACED:
- if (dev->tvnorm & V4L2_STD_NTSC)
- /* NTSC or */
- field_tff = 1;
- else
- field_tff = 0;
-
- if (cx23885_boards[dev->board].force_bff)
- /* PAL / SECAM OR 888 in NTSC MODE */
- field_tff = 0;
-
- if (field_tff) {
- /* cx25840 transmits NTSC bottom field first */
- dprintk(1, "%s() Creating TFF/NTSC risc\n",
+ if (field_tff) {
+ /* cx25840 transmits NTSC bottom field first */
+ dprintk(1, "%s() Creating TFF/NTSC risc\n",
__func__);
- line0_offset = buf->bpl;
- line1_offset = 0;
- } else {
- /* All other formats are top field first */
- dprintk(1, "%s() Creating BFF/PAL/SECAM risc\n",
+ line0_offset = buf->bpl;
+ line1_offset = 0;
+ } else {
+ /* All other formats are top field first */
+ dprintk(1, "%s() Creating BFF/PAL/SECAM risc\n",
__func__);
- line0_offset = 0;
- line1_offset = buf->bpl;
- }
- cx23885_risc_buffer(dev->pci, &buf->risc,
- dma->sglist, line0_offset,
- line1_offset,
- buf->bpl, buf->bpl,
- buf->vb.height >> 1);
- break;
- case V4L2_FIELD_SEQ_TB:
- cx23885_risc_buffer(dev->pci, &buf->risc,
- dma->sglist,
- 0, buf->bpl * (buf->vb.height >> 1),
- buf->bpl, 0,
- buf->vb.height >> 1);
- break;
- case V4L2_FIELD_SEQ_BT:
- cx23885_risc_buffer(dev->pci, &buf->risc,
- dma->sglist,
- buf->bpl * (buf->vb.height >> 1), 0,
- buf->bpl, 0,
- buf->vb.height >> 1);
- break;
- default:
- BUG();
+ line0_offset = 0;
+ line1_offset = buf->bpl;
}
+ cx23885_risc_buffer(dev->pci, &buf->risc,
+ sgt->sgl, line0_offset,
+ line1_offset,
+ buf->bpl, buf->bpl,
+ dev->height >> 1);
+ break;
+ case V4L2_FIELD_SEQ_TB:
+ cx23885_risc_buffer(dev->pci, &buf->risc,
+ sgt->sgl,
+ 0, buf->bpl * (dev->height >> 1),
+ buf->bpl, 0,
+ dev->height >> 1);
+ break;
+ case V4L2_FIELD_SEQ_BT:
+ cx23885_risc_buffer(dev->pci, &buf->risc,
+ sgt->sgl,
+ buf->bpl * (dev->height >> 1), 0,
+ buf->bpl, 0,
+ dev->height >> 1);
+ break;
+ default:
+ BUG();
}
- dprintk(2, "[%p/%d] buffer_prep - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
- buf, buf->vb.i,
+ dprintk(2, "[%p/%d] buffer_init - %dx%d %dbpp \"%s\" - dma=0x%08lx\n",
+ buf, buf->vb.v4l2_buf.index,
dev->width, dev->height, dev->fmt->depth, dev->fmt->name,
(unsigned long)buf->risc.dma);
-
- buf->vb.state = VIDEOBUF_PREPARED;
return 0;
+}
- fail:
- cx23885_free_buffer(q, buf);
- return rc;
+static void buffer_finish(struct vb2_buffer *vb)
+{
+ struct cx23885_dev *dev = vb->vb2_queue->drv_priv;
+ struct cx23885_buffer *buf = container_of(vb,
+ struct cx23885_buffer, vb);
+ struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
+
+ cx23885_free_buffer(vb->vb2_queue->drv_priv, buf);
+
+ dma_unmap_sg(&dev->pci->dev, sgt->sgl, sgt->nents, DMA_FROM_DEVICE);
}
-static void buffer_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
+/*
+ * The risc program for each buffer works as follows: it starts with a simple
+ * 'JUMP to addr + 12', which is effectively a NOP. Then the code to DMA the
+ * buffer follows and at the end we have a JUMP back to the start + 12 (skipping
+ * the initial JUMP).
+ *
+ * This is the risc program of the first buffer to be queued if the active list
+ * is empty and it just keeps DMAing this buffer without generating any
+ * interrupts.
+ *
+ * If a new buffer is added then the initial JUMP in the code for that buffer
+ * will generate an interrupt which signals that the previous buffer has been
+ * DMAed successfully and that it can be returned to userspace.
+ *
+ * It also sets the final jump of the previous buffer to the start of the new
+ * buffer, thus chaining the new buffer into the DMA chain. This is a single
+ * atomic u32 write, so there is no race condition.
+ *
+ * The end-result of all this that you only get an interrupt when a buffer
+ * is ready, so the control flow is very easy.
+ */
+static void buffer_queue(struct vb2_buffer *vb)
{
+ struct cx23885_dev *dev = vb->vb2_queue->drv_priv;
struct cx23885_buffer *buf = container_of(vb,
struct cx23885_buffer, vb);
struct cx23885_buffer *prev;
- struct cx23885_fh *fh = vq->priv_data;
- struct cx23885_dev *dev = fh->q_dev;
struct cx23885_dmaqueue *q = &dev->vidq;
+ unsigned long flags;
- /* add jump to stopper */
- buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_IRQ1 | RISC_CNT_INC);
- buf->risc.jmp[1] = cpu_to_le32(q->stopper.dma);
+ /* add jump to start */
+ buf->risc.cpu[1] = cpu_to_le32(buf->risc.dma + 12);
+ buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC);
+ buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma + 12);
buf->risc.jmp[2] = cpu_to_le32(0); /* bits 63-32 */
- if (!list_empty(&q->queued)) {
- list_add_tail(&buf->vb.queue, &q->queued);
- buf->vb.state = VIDEOBUF_QUEUED;
- dprintk(2, "[%p/%d] buffer_queue - append to queued\n",
- buf, buf->vb.i);
-
- } else if (list_empty(&q->active)) {
- list_add_tail(&buf->vb.queue, &q->active);
- cx23885_start_video_dma(dev, q, buf);
- buf->vb.state = VIDEOBUF_ACTIVE;
- buf->count = q->count++;
- mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
+ spin_lock_irqsave(&dev->slock, flags);
+ if (list_empty(&q->active)) {
+ list_add_tail(&buf->queue, &q->active);
dprintk(2, "[%p/%d] buffer_queue - first active\n",
- buf, buf->vb.i);
-
+ buf, buf->vb.v4l2_buf.index);
} else {
+ buf->risc.cpu[0] |= cpu_to_le32(RISC_IRQ1);
prev = list_entry(q->active.prev, struct cx23885_buffer,
- vb.queue);
- if (prev->vb.width == buf->vb.width &&
- prev->vb.height == buf->vb.height &&
- prev->fmt == buf->fmt) {
- list_add_tail(&buf->vb.queue, &q->active);
- buf->vb.state = VIDEOBUF_ACTIVE;
- buf->count = q->count++;
- prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
- /* 64 bit bits 63-32 */
- prev->risc.jmp[2] = cpu_to_le32(0);
- dprintk(2, "[%p/%d] buffer_queue - append to active\n",
- buf, buf->vb.i);
-
- } else {
- list_add_tail(&buf->vb.queue, &q->queued);
- buf->vb.state = VIDEOBUF_QUEUED;
- dprintk(2, "[%p/%d] buffer_queue - first queued\n",
- buf, buf->vb.i);
- }
- }
-}
-
-static void buffer_release(struct videobuf_queue *q,
- struct videobuf_buffer *vb)
-{
- struct cx23885_buffer *buf = container_of(vb,
- struct cx23885_buffer, vb);
-
- cx23885_free_buffer(q, buf);
-}
-
-static struct videobuf_queue_ops cx23885_video_qops = {
- .buf_setup = buffer_setup,
- .buf_prepare = buffer_prepare,
- .buf_queue = buffer_queue,
- .buf_release = buffer_release,
-};
-
-static struct videobuf_queue *get_queue(struct file *file)
-{
- struct video_device *vdev = video_devdata(file);
- struct cx23885_fh *fh = file->private_data;
-
- switch (vdev->vfl_type) {
- case VFL_TYPE_GRABBER:
- return &fh->vidq;
- case VFL_TYPE_VBI:
- return &fh->vbiq;
- default:
- WARN_ON(1);
- return NULL;
- }
-}
-
-static int get_resource(u32 type)
-{
- switch (type) {
- case V4L2_BUF_TYPE_VIDEO_CAPTURE:
- return RESOURCE_VIDEO;
- case V4L2_BUF_TYPE_VBI_CAPTURE:
- return RESOURCE_VBI;
- default:
- WARN_ON(1);
- return 0;
+ queue);
+ list_add_tail(&buf->queue, &q->active);
+ prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
+ dprintk(2, "[%p/%d] buffer_queue - append to active\n",
+ buf, buf->vb.v4l2_buf.index);
}
+ spin_unlock_irqrestore(&dev->slock, flags);
}
-static int video_open(struct file *file)
+static int cx23885_start_streaming(struct vb2_queue *q, unsigned int count)
{
- struct video_device *vdev = video_devdata(file);
- struct cx23885_dev *dev = video_drvdata(file);
- struct cx23885_fh *fh;
-
- dprintk(1, "open dev=%s\n",
- video_device_node_name(vdev));
-
- /* allocate + initialize per filehandle data */
- fh = kzalloc(sizeof(*fh), GFP_KERNEL);
- if (NULL == fh)
- return -ENOMEM;
-
- v4l2_fh_init(&fh->fh, vdev);
- file->private_data = &fh->fh;
- fh->q_dev = dev;
-
- videobuf_queue_sg_init(&fh->vidq, &cx23885_video_qops,
- &dev->pci->dev, &dev->slock,
- V4L2_BUF_TYPE_VIDEO_CAPTURE,
- V4L2_FIELD_INTERLACED,
- sizeof(struct cx23885_buffer),
- fh, NULL);
-
- videobuf_queue_sg_init(&fh->vbiq, &cx23885_vbi_qops,
- &dev->pci->dev, &dev->slock,
- V4L2_BUF_TYPE_VBI_CAPTURE,
- V4L2_FIELD_SEQ_TB,
- sizeof(struct cx23885_buffer),
- fh, NULL);
-
- v4l2_fh_add(&fh->fh);
-
- dprintk(1, "post videobuf_queue_init()\n");
+ struct cx23885_dev *dev = q->drv_priv;
+ struct cx23885_dmaqueue *dmaq = &dev->vidq;
+ struct cx23885_buffer *buf = list_entry(dmaq->active.next,
+ struct cx23885_buffer, queue);
+ cx23885_start_video_dma(dev, dmaq, buf);
return 0;
}
-static ssize_t video_read(struct file *file, char __user *data,
- size_t count, loff_t *ppos)
+static void cx23885_stop_streaming(struct vb2_queue *q)
{
- struct video_device *vdev = video_devdata(file);
- struct cx23885_dev *dev = video_drvdata(file);
- struct cx23885_fh *fh = file->private_data;
-
- switch (vdev->vfl_type) {
- case VFL_TYPE_GRABBER:
- if (res_locked(dev, RESOURCE_VIDEO))
- return -EBUSY;
- return videobuf_read_one(&fh->vidq, data, count, ppos,
- file->f_flags & O_NONBLOCK);
- case VFL_TYPE_VBI:
- if (!res_get(dev, fh, RESOURCE_VBI))
- return -EBUSY;
- return videobuf_read_stream(&fh->vbiq, data, count, ppos, 1,
- file->f_flags & O_NONBLOCK);
- default:
- return -EINVAL;
- }
-}
-
-static unsigned int video_poll(struct file *file,
- struct poll_table_struct *wait)
-{
- struct video_device *vdev = video_devdata(file);
- struct cx23885_dev *dev = video_drvdata(file);
- struct cx23885_fh *fh = file->private_data;
- struct cx23885_buffer *buf;
- unsigned long req_events = poll_requested_events(wait);
- unsigned int rc = 0;
-
- if (v4l2_event_pending(&fh->fh))
- rc = POLLPRI;
- else
- poll_wait(file, &fh->fh.wait, wait);
- if (!(req_events & (POLLIN | POLLRDNORM)))
- return rc;
-
- if (vdev->vfl_type == VFL_TYPE_VBI) {
- if (!res_get(dev, fh, RESOURCE_VBI))
- return rc | POLLERR;
- return rc | videobuf_poll_stream(file, &fh->vbiq, wait);
- }
-
- mutex_lock(&fh->vidq.vb_lock);
- if (res_check(fh, RESOURCE_VIDEO)) {
- /* streaming capture */
- if (list_empty(&fh->vidq.stream))
- goto done;
- buf = list_entry(fh->vidq.stream.next,
- struct cx23885_buffer, vb.stream);
- } else {
- /* read() capture */
- buf = (struct cx23885_buffer *)fh->vidq.read_buf;
- if (NULL == buf)
- goto done;
- }
- poll_wait(file, &buf->vb.done, wait);
- if (buf->vb.state == VIDEOBUF_DONE ||
- buf->vb.state == VIDEOBUF_ERROR)
- rc |= POLLIN | POLLRDNORM;
-done:
- mutex_unlock(&fh->vidq.vb_lock);
- return rc;
-}
-
-static int video_release(struct file *file)
-{
- struct cx23885_dev *dev = video_drvdata(file);
- struct cx23885_fh *fh = file->private_data;
-
- /* turn off overlay */
- if (res_check(fh, RESOURCE_OVERLAY)) {
- /* FIXME */
- res_free(dev, fh, RESOURCE_OVERLAY);
- }
+ struct cx23885_dev *dev = q->drv_priv;
+ struct cx23885_dmaqueue *dmaq = &dev->vidq;
+ unsigned long flags;
- /* stop video capture */
- if (res_check(fh, RESOURCE_VIDEO)) {
- videobuf_queue_cancel(&fh->vidq);
- res_free(dev, fh, RESOURCE_VIDEO);
- }
- if (fh->vidq.read_buf) {
- buffer_release(&fh->vidq, fh->vidq.read_buf);
- kfree(fh->vidq.read_buf);
- }
+ cx_clear(VID_A_DMA_CTL, 0x11);
+ spin_lock_irqsave(&dev->slock, flags);
+ while (!list_empty(&dmaq->active)) {
+ struct cx23885_buffer *buf = list_entry(dmaq->active.next,
+ struct cx23885_buffer, queue);
- /* stop vbi capture */
- if (res_check(fh, RESOURCE_VBI)) {
- if (fh->vbiq.streaming)
- videobuf_streamoff(&fh->vbiq);
- if (fh->vbiq.reading)
- videobuf_read_stop(&fh->vbiq);
- res_free(dev, fh, RESOURCE_VBI);
+ list_del(&buf->queue);
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
}
-
- videobuf_mmap_free(&fh->vidq);
- videobuf_mmap_free(&fh->vbiq);
-
- v4l2_fh_del(&fh->fh);
- v4l2_fh_exit(&fh->fh);
- file->private_data = NULL;
- kfree(fh);
-
- /* We are not putting the tuner to sleep here on exit, because
- * we want to use the mpeg encoder in another session to capture
- * tuner video. Closing this will result in no video to the encoder.
- */
-
- return 0;
+ spin_unlock_irqrestore(&dev->slock, flags);
}
-static int video_mmap(struct file *file, struct vm_area_struct *vma)
-{
- return videobuf_mmap_mapper(get_queue(file), vma);
-}
+static struct vb2_ops cx23885_video_qops = {
+ .queue_setup = queue_setup,
+ .buf_prepare = buffer_prepare,
+ .buf_finish = buffer_finish,
+ .buf_queue = buffer_queue,
+ .wait_prepare = vb2_ops_wait_prepare,
+ .wait_finish = vb2_ops_wait_finish,
+ .start_streaming = cx23885_start_streaming,
+ .stop_streaming = cx23885_stop_streaming,
+};
/* ------------------------------------------------------------------ */
/* VIDEO IOCTLS */
struct v4l2_format *f)
{
struct cx23885_dev *dev = video_drvdata(file);
- struct cx23885_fh *fh = priv;
f->fmt.pix.width = dev->width;
f->fmt.pix.height = dev->height;
- f->fmt.pix.field = fh->vidq.field;
+ f->fmt.pix.field = dev->field;
f->fmt.pix.pixelformat = dev->fmt->fourcc;
f->fmt.pix.bytesperline =
(f->fmt.pix.width * dev->fmt->depth) >> 3;
struct v4l2_format *f)
{
struct cx23885_dev *dev = video_drvdata(file);
- struct cx23885_fh *fh = priv;
struct v4l2_mbus_framefmt mbus_fmt;
int err;
dev->fmt = format_by_fourcc(f->fmt.pix.pixelformat);
dev->width = f->fmt.pix.width;
dev->height = f->fmt.pix.height;
- fh->vidq.field = f->fmt.pix.field;
+ dev->field = f->fmt.pix.field;
dprintk(2, "%s() width=%d height=%d field=%d\n", __func__,
- dev->width, dev->height, fh->vidq.field);
+ dev->width, dev->height, dev->field);
v4l2_fill_mbus_format(&mbus_fmt, &f->fmt.pix, V4L2_MBUS_FMT_FIXED);
call_all(dev, video, s_mbus_fmt, &mbus_fmt);
v4l2_fill_pix_format(&f->fmt.pix, &mbus_fmt);
return 0;
}
-static int vidioc_reqbufs(struct file *file, void *priv,
- struct v4l2_requestbuffers *p)
-{
- return videobuf_reqbufs(get_queue(file), p);
-}
-
-static int vidioc_querybuf(struct file *file, void *priv,
- struct v4l2_buffer *p)
-{
- return videobuf_querybuf(get_queue(file), p);
-}
-
-static int vidioc_qbuf(struct file *file, void *priv,
- struct v4l2_buffer *p)
-{
- return videobuf_qbuf(get_queue(file), p);
-}
-
-static int vidioc_dqbuf(struct file *file, void *priv,
- struct v4l2_buffer *p)
-{
- return videobuf_dqbuf(get_queue(file), p,
- file->f_flags & O_NONBLOCK);
-}
-
-static int vidioc_streamon(struct file *file, void *priv,
- enum v4l2_buf_type i)
-{
- struct cx23885_dev *dev = video_drvdata(file);
- struct video_device *vdev = video_devdata(file);
- struct cx23885_fh *fh = priv;
- dprintk(1, "%s()\n", __func__);
-
- if (vdev->vfl_type == VFL_TYPE_VBI &&
- i != V4L2_BUF_TYPE_VBI_CAPTURE)
- return -EINVAL;
- if (vdev->vfl_type == VFL_TYPE_GRABBER &&
- i != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
-
- if (unlikely(!res_get(dev, fh, get_resource(i))))
- return -EBUSY;
-
- /* Don't start VBI streaming unless vida streaming
- * has already started.
- */
- if ((i == V4L2_BUF_TYPE_VBI_CAPTURE) &&
- ((cx_read(VID_A_DMA_CTL) & 0x11) == 0))
- return -EINVAL;
-
- return videobuf_streamon(get_queue(file));
-}
-
-static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i)
-{
- struct cx23885_dev *dev = video_drvdata(file);
- struct video_device *vdev = video_devdata(file);
- struct cx23885_fh *fh = priv;
- int err, res;
- dprintk(1, "%s()\n", __func__);
-
- if (vdev->vfl_type == VFL_TYPE_VBI &&
- i != V4L2_BUF_TYPE_VBI_CAPTURE)
- return -EINVAL;
- if (vdev->vfl_type == VFL_TYPE_GRABBER &&
- i != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
-
- res = get_resource(i);
- err = videobuf_streamoff(get_queue(file));
- if (err < 0)
- return err;
- res_free(dev, fh, res);
- return 0;
-}
-
static int vidioc_g_std(struct file *file, void *priv, v4l2_std_id *id)
{
struct cx23885_dev *dev = video_drvdata(file);
{
struct v4l2_ctrl *mute;
int old_mute_val = 1;
- struct videobuf_dvb_frontend *vfe;
+ struct vb2_dvb_frontend *vfe;
struct dvb_frontend *fe;
struct analog_parameters params = {
dprintk(1, "%s() frequency=%d tuner=%d std=0x%llx\n", __func__,
params.frequency, f->tuner, params.std);
- vfe = videobuf_dvb_get_frontend(&dev->ts2.frontends, 1);
+ vfe = vb2_dvb_get_frontend(&dev->ts2.frontends, 1);
if (!vfe) {
return -EINVAL;
}
/* ----------------------------------------------------------- */
-static void cx23885_vid_timeout(unsigned long data)
-{
- struct cx23885_dev *dev = (struct cx23885_dev *)data;
- struct cx23885_dmaqueue *q = &dev->vidq;
- struct cx23885_buffer *buf;
- unsigned long flags;
-
- spin_lock_irqsave(&dev->slock, flags);
- while (!list_empty(&q->active)) {
- buf = list_entry(q->active.next,
- struct cx23885_buffer, vb.queue);
- list_del(&buf->vb.queue);
- buf->vb.state = VIDEOBUF_ERROR;
- wake_up(&buf->vb.done);
- printk(KERN_ERR "%s: [%p/%d] timeout - dma=0x%08lx\n",
- dev->name, buf, buf->vb.i,
- (unsigned long)buf->risc.dma);
- }
- cx23885_restart_video_queue(dev, q);
- spin_unlock_irqrestore(&dev->slock, flags);
-}
-
int cx23885_video_irq(struct cx23885_dev *dev, u32 status)
{
u32 mask, count;
spin_unlock(&dev->slock);
handled++;
}
- if (status & VID_BC_MSK_RISCI2) {
- dprintk(2, "stopper video\n");
- spin_lock(&dev->slock);
- cx23885_restart_video_queue(dev, &dev->vidq);
- spin_unlock(&dev->slock);
- handled++;
- }
/* Allow the VBI framework to process it's payload */
handled += cx23885_vbi_irq(dev, status);
static const struct v4l2_file_operations video_fops = {
.owner = THIS_MODULE,
- .open = video_open,
- .release = video_release,
- .read = video_read,
- .poll = video_poll,
- .mmap = video_mmap,
+ .open = v4l2_fh_open,
+ .release = vb2_fop_release,
+ .read = vb2_fop_read,
+ .poll = vb2_fop_poll,
.unlocked_ioctl = video_ioctl2,
+ .mmap = vb2_fop_mmap,
};
static const struct v4l2_ioctl_ops video_ioctl_ops = {
.vidioc_g_fmt_vbi_cap = cx23885_vbi_fmt,
.vidioc_try_fmt_vbi_cap = cx23885_vbi_fmt,
.vidioc_s_fmt_vbi_cap = cx23885_vbi_fmt,
- .vidioc_reqbufs = vidioc_reqbufs,
- .vidioc_querybuf = vidioc_querybuf,
- .vidioc_qbuf = vidioc_qbuf,
- .vidioc_dqbuf = vidioc_dqbuf,
+ .vidioc_reqbufs = vb2_ioctl_reqbufs,
+ .vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+ .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_s_std = vidioc_s_std,
.vidioc_g_std = vidioc_g_std,
.vidioc_enum_input = vidioc_enum_input,
.vidioc_g_input = vidioc_g_input,
.vidioc_s_input = vidioc_s_input,
.vidioc_log_status = vidioc_log_status,
- .vidioc_streamon = vidioc_streamon,
- .vidioc_streamoff = vidioc_streamoff,
.vidioc_g_tuner = vidioc_g_tuner,
.vidioc_s_tuner = vidioc_s_tuner,
.vidioc_g_frequency = vidioc_g_frequency,
else
video_device_release(dev->vbi_dev);
dev->vbi_dev = NULL;
- btcx_riscmem_free(dev->pci, &dev->vbiq.stopper);
}
if (dev->video_dev) {
if (video_is_registered(dev->video_dev))
else
video_device_release(dev->video_dev);
dev->video_dev = NULL;
-
- btcx_riscmem_free(dev->pci, &dev->vidq.stopper);
}
if (dev->audio_dev)
int cx23885_video_register(struct cx23885_dev *dev)
{
+ struct vb2_queue *q;
int err;
dprintk(1, "%s()\n", __func__);
/* init video dma queues */
INIT_LIST_HEAD(&dev->vidq.active);
- INIT_LIST_HEAD(&dev->vidq.queued);
- dev->vidq.timeout.function = cx23885_vid_timeout;
- dev->vidq.timeout.data = (unsigned long)dev;
- init_timer(&dev->vidq.timeout);
- cx23885_risc_stopper(dev->pci, &dev->vidq.stopper,
- VID_A_DMA_CTL, 0x11, 0x00);
/* init vbi dma queues */
INIT_LIST_HEAD(&dev->vbiq.active);
- INIT_LIST_HEAD(&dev->vbiq.queued);
- dev->vbiq.timeout.function = cx23885_vbi_timeout;
- dev->vbiq.timeout.data = (unsigned long)dev;
- init_timer(&dev->vbiq.timeout);
- cx23885_risc_stopper(dev->pci, &dev->vbiq.stopper,
- VID_A_DMA_CTL, 0x22, 0x00);
cx23885_irq_add_enable(dev, 0x01);
cx23885_audio_mux(dev, 0);
mutex_unlock(&dev->lock);
+ q = &dev->vb2_vidq;
+ q->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
+ q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
+ q->gfp_flags = GFP_DMA32;
+ q->min_buffers_needed = 2;
+ q->drv_priv = dev;
+ q->buf_struct_size = sizeof(struct cx23885_buffer);
+ q->ops = &cx23885_video_qops;
+ q->mem_ops = &vb2_dma_sg_memops;
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->lock = &dev->lock;
+
+ err = vb2_queue_init(q);
+ if (err < 0)
+ goto fail_unreg;
+
+ q = &dev->vb2_vbiq;
+ q->type = V4L2_BUF_TYPE_VBI_CAPTURE;
+ q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ;
+ q->gfp_flags = GFP_DMA32;
+ q->min_buffers_needed = 2;
+ q->drv_priv = dev;
+ q->buf_struct_size = sizeof(struct cx23885_buffer);
+ q->ops = &cx23885_vbi_qops;
+ q->mem_ops = &vb2_dma_sg_memops;
+ q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+ q->lock = &dev->lock;
+
+ err = vb2_queue_init(q);
+ if (err < 0)
+ goto fail_unreg;
+
/* register Video device */
dev->video_dev = cx23885_vdev_init(dev, dev->pci,
&cx23885_video_template, "video");
+ dev->video_dev->queue = &dev->vb2_vidq;
err = video_register_device(dev->video_dev, VFL_TYPE_GRABBER,
video_nr[dev->nr]);
if (err < 0) {
/* register VBI device */
dev->vbi_dev = cx23885_vdev_init(dev, dev->pci,
&cx23885_vbi_template, "vbi");
+ dev->vbi_dev->queue = &dev->vb2_vbiq;
err = video_register_device(dev->vbi_dev, VFL_TYPE_VBI,
vbi_nr[dev->nr]);
if (err < 0) {
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