summaryrefslogtreecommitdiff
path: root/drivers/media/pci/cx88/cx88-vbi.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/pci/cx88/cx88-vbi.c')
-rw-r--r--drivers/media/pci/cx88/cx88-vbi.c216
1 files changed, 106 insertions, 110 deletions
diff --git a/drivers/media/pci/cx88/cx88-vbi.c b/drivers/media/pci/cx88/cx88-vbi.c
index f8f8389c0362..6ab6e27648f6 100644
--- a/drivers/media/pci/cx88/cx88-vbi.c
+++ b/drivers/media/pci/cx88/cx88-vbi.c
@@ -6,10 +6,6 @@
#include "cx88.h"
-static unsigned int vbibufs = 4;
-module_param(vbibufs,int,0644);
-MODULE_PARM_DESC(vbibufs,"number of vbi buffers, range 2-32");
-
static unsigned int vbi_debug;
module_param(vbi_debug,int,0644);
MODULE_PARM_DESC(vbi_debug,"enable debug messages [vbi]");
@@ -22,26 +18,27 @@ MODULE_PARM_DESC(vbi_debug,"enable debug messages [vbi]");
int cx8800_vbi_fmt (struct file *file, void *priv,
struct v4l2_format *f)
{
- struct cx8800_fh *fh = priv;
- struct cx8800_dev *dev = fh->dev;
+ struct cx8800_dev *dev = video_drvdata(file);
f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH;
f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY;
f->fmt.vbi.offset = 244;
- f->fmt.vbi.count[0] = VBI_LINE_COUNT;
- f->fmt.vbi.count[1] = VBI_LINE_COUNT;
if (dev->core->tvnorm & V4L2_STD_525_60) {
/* ntsc */
f->fmt.vbi.sampling_rate = 28636363;
f->fmt.vbi.start[0] = 10;
f->fmt.vbi.start[1] = 273;
+ f->fmt.vbi.count[0] = VBI_LINE_NTSC_COUNT;
+ f->fmt.vbi.count[1] = VBI_LINE_NTSC_COUNT;
} else if (dev->core->tvnorm & V4L2_STD_625_50) {
/* pal */
f->fmt.vbi.sampling_rate = 35468950;
- f->fmt.vbi.start[0] = 7 -1;
- f->fmt.vbi.start[1] = 319 -1;
+ f->fmt.vbi.start[0] = V4L2_VBI_ITU_625_F1_START + 5;
+ f->fmt.vbi.start[1] = V4L2_VBI_ITU_625_F2_START + 5;
+ f->fmt.vbi.count[0] = VBI_LINE_PAL_COUNT;
+ f->fmt.vbi.count[1] = VBI_LINE_PAL_COUNT;
}
return 0;
}
@@ -54,7 +51,7 @@ static int cx8800_start_vbi_dma(struct cx8800_dev *dev,
/* setup fifo + format */
cx88_sram_channel_setup(dev->core, &cx88_sram_channels[SRAM_CH24],
- buf->vb.width, buf->risc.dma);
+ VBI_LINE_LENGTH, buf->risc.dma);
cx_write(MO_VBOS_CONTROL, ( (1 << 18) | // comb filter delay fixup
(1 << 15) | // enable vbi capture
@@ -78,7 +75,7 @@ static int cx8800_start_vbi_dma(struct cx8800_dev *dev,
return 0;
}
-int cx8800_stop_vbi_dma(struct cx8800_dev *dev)
+void cx8800_stop_vbi_dma(struct cx8800_dev *dev)
{
struct cx88_core *core = dev->core;
@@ -91,7 +88,6 @@ int cx8800_stop_vbi_dma(struct cx8800_dev *dev)
/* disable irqs */
cx_clear(MO_PCI_INTMSK, PCI_INT_VIDINT);
cx_clear(MO_VID_INTMSK, 0x0f0088);
- return 0;
}
int cx8800_restart_vbi_queue(struct cx8800_dev *dev,
@@ -102,144 +98,144 @@ int cx8800_restart_vbi_queue(struct cx8800_dev *dev,
if (list_empty(&q->active))
return 0;
- buf = list_entry(q->active.next, struct cx88_buffer, vb.queue);
+ buf = list_entry(q->active.next, struct cx88_buffer, list);
dprintk(2,"restart_queue [%p/%d]: restart dma\n",
- buf, buf->vb.i);
+ buf, buf->vb.v4l2_buf.index);
cx8800_start_vbi_dma(dev, q, buf);
- list_for_each_entry(buf, &q->active, vb.queue)
+ list_for_each_entry(buf, &q->active, list)
buf->count = q->count++;
- mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
return 0;
}
-void cx8800_vbi_timeout(unsigned long data)
-{
- struct cx8800_dev *dev = (struct cx8800_dev*)data;
- struct cx88_core *core = dev->core;
- struct cx88_dmaqueue *q = &dev->vbiq;
- struct cx88_buffer *buf;
- unsigned long flags;
-
- cx88_sram_channel_dump(dev->core, &cx88_sram_channels[SRAM_CH24]);
-
- cx_clear(MO_VID_DMACNTRL, 0x88);
- cx_clear(VID_CAPTURE_CONTROL, 0x18);
-
- spin_lock_irqsave(&dev->slock,flags);
- while (!list_empty(&q->active)) {
- buf = list_entry(q->active.next, struct cx88_buffer, vb.queue);
- list_del(&buf->vb.queue);
- buf->vb.state = VIDEOBUF_ERROR;
- wake_up(&buf->vb.done);
- printk("%s/0: [%p/%d] timeout - dma=0x%08lx\n", dev->core->name,
- buf, buf->vb.i, (unsigned long)buf->risc.dma);
- }
- cx8800_restart_vbi_queue(dev,q);
- spin_unlock_irqrestore(&dev->slock,flags);
-}
-
/* ------------------------------------------------------------------ */
-static int
-vbi_setup(struct videobuf_queue *q, unsigned int *count, unsigned int *size)
+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[])
{
- *size = VBI_LINE_COUNT * VBI_LINE_LENGTH * 2;
- if (0 == *count)
- *count = vbibufs;
- if (*count < 2)
- *count = 2;
- if (*count > 32)
- *count = 32;
+ struct cx8800_dev *dev = q->drv_priv;
+
+ *num_planes = 1;
+ if (dev->core->tvnorm & V4L2_STD_525_60)
+ sizes[0] = VBI_LINE_NTSC_COUNT * VBI_LINE_LENGTH * 2;
+ else
+ sizes[0] = VBI_LINE_PAL_COUNT * VBI_LINE_LENGTH * 2;
return 0;
}
-static int
-vbi_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb,
- enum v4l2_field field)
+
+static int buffer_prepare(struct vb2_buffer *vb)
{
- struct cx8800_fh *fh = q->priv_data;
- struct cx8800_dev *dev = fh->dev;
- struct cx88_buffer *buf = container_of(vb,struct cx88_buffer,vb);
+ struct cx8800_dev *dev = vb->vb2_queue->drv_priv;
+ struct cx88_buffer *buf = container_of(vb, struct cx88_buffer, vb);
+ struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
+ unsigned int lines;
unsigned int size;
int rc;
- size = VBI_LINE_COUNT * VBI_LINE_LENGTH * 2;
- if (0 != buf->vb.baddr && buf->vb.bsize < size)
+ if (dev->core->tvnorm & V4L2_STD_525_60)
+ lines = VBI_LINE_NTSC_COUNT;
+ else
+ lines = VBI_LINE_PAL_COUNT;
+ size = lines * VBI_LINE_LENGTH * 2;
+ if (vb2_plane_size(vb, 0) < size)
return -EINVAL;
+ vb2_set_plane_payload(vb, 0, size);
- if (VIDEOBUF_NEEDS_INIT == buf->vb.state) {
- struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
- buf->vb.width = VBI_LINE_LENGTH;
- buf->vb.height = VBI_LINE_COUNT;
- buf->vb.size = size;
- buf->vb.field = V4L2_FIELD_SEQ_TB;
-
- if (0 != (rc = videobuf_iolock(q,&buf->vb,NULL)))
- goto fail;
- cx88_risc_buffer(dev->pci, &buf->risc,
- dma->sglist,
- 0, buf->vb.width * buf->vb.height,
- buf->vb.width, 0,
- buf->vb.height);
- }
- buf->vb.state = VIDEOBUF_PREPARED;
+ rc = dma_map_sg(&dev->pci->dev, sgt->sgl, sgt->nents, DMA_FROM_DEVICE);
+ if (!rc)
+ return -EIO;
+
+ cx88_risc_buffer(dev->pci, &buf->risc, sgt->sgl,
+ 0, VBI_LINE_LENGTH * lines,
+ VBI_LINE_LENGTH, 0,
+ lines);
return 0;
+}
- fail:
- cx88_free_buffer(q,buf);
- return rc;
+static void buffer_finish(struct vb2_buffer *vb)
+{
+ struct cx8800_dev *dev = vb->vb2_queue->drv_priv;
+ struct cx88_buffer *buf = container_of(vb, struct cx88_buffer, vb);
+ struct sg_table *sgt = vb2_dma_sg_plane_desc(vb, 0);
+ struct cx88_riscmem *risc = &buf->risc;
+
+ if (risc->cpu)
+ pci_free_consistent(dev->pci, risc->size, risc->cpu, risc->dma);
+ memset(risc, 0, sizeof(*risc));
+
+ dma_unmap_sg(&dev->pci->dev, sgt->sgl, sgt->nents, DMA_FROM_DEVICE);
}
-static void
-vbi_queue(struct videobuf_queue *vq, struct videobuf_buffer *vb)
+static void buffer_queue(struct vb2_buffer *vb)
{
- struct cx88_buffer *buf = container_of(vb,struct cx88_buffer,vb);
+ struct cx8800_dev *dev = vb->vb2_queue->drv_priv;
+ struct cx88_buffer *buf = container_of(vb, struct cx88_buffer, vb);
struct cx88_buffer *prev;
- struct cx8800_fh *fh = vq->priv_data;
- struct cx8800_dev *dev = fh->dev;
struct cx88_dmaqueue *q = &dev->vbiq;
- /* 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 + 8);
+ buf->risc.jmp[0] = cpu_to_le32(RISC_JUMP | RISC_CNT_INC);
+ buf->risc.jmp[1] = cpu_to_le32(buf->risc.dma + 8);
if (list_empty(&q->active)) {
- list_add_tail(&buf->vb.queue,&q->active);
+ list_add_tail(&buf->list, &q->active);
cx8800_start_vbi_dma(dev, q, buf);
- buf->vb.state = VIDEOBUF_ACTIVE;
buf->count = q->count++;
- mod_timer(&q->timeout, jiffies+BUFFER_TIMEOUT);
dprintk(2,"[%p/%d] vbi_queue - first active\n",
- buf, buf->vb.i);
+ buf, buf->vb.v4l2_buf.index);
} else {
- prev = list_entry(q->active.prev, struct cx88_buffer, vb.queue);
- list_add_tail(&buf->vb.queue,&q->active);
- buf->vb.state = VIDEOBUF_ACTIVE;
+ buf->risc.cpu[0] |= cpu_to_le32(RISC_IRQ1);
+ prev = list_entry(q->active.prev, struct cx88_buffer, list);
+ list_add_tail(&buf->list, &q->active);
buf->count = q->count++;
prev->risc.jmp[1] = cpu_to_le32(buf->risc.dma);
dprintk(2,"[%p/%d] buffer_queue - append to active\n",
- buf, buf->vb.i);
+ buf, buf->vb.v4l2_buf.index);
}
}
-static void vbi_release(struct videobuf_queue *q, struct videobuf_buffer *vb)
+static int start_streaming(struct vb2_queue *q, unsigned int count)
{
- struct cx88_buffer *buf = container_of(vb,struct cx88_buffer,vb);
+ struct cx8800_dev *dev = q->drv_priv;
+ struct cx88_dmaqueue *dmaq = &dev->vbiq;
+ struct cx88_buffer *buf = list_entry(dmaq->active.next,
+ struct cx88_buffer, list);
- cx88_free_buffer(q,buf);
+ cx8800_start_vbi_dma(dev, dmaq, buf);
+ return 0;
}
-const struct videobuf_queue_ops cx8800_vbi_qops = {
- .buf_setup = vbi_setup,
- .buf_prepare = vbi_prepare,
- .buf_queue = vbi_queue,
- .buf_release = vbi_release,
-};
+static void stop_streaming(struct vb2_queue *q)
+{
+ struct cx8800_dev *dev = q->drv_priv;
+ struct cx88_core *core = dev->core;
+ struct cx88_dmaqueue *dmaq = &dev->vbiq;
+ unsigned long flags;
-/* ------------------------------------------------------------------ */
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
+ cx_clear(MO_VID_DMACNTRL, 0x11);
+ cx_clear(VID_CAPTURE_CONTROL, 0x06);
+ cx8800_stop_vbi_dma(dev);
+ spin_lock_irqsave(&dev->slock, flags);
+ while (!list_empty(&dmaq->active)) {
+ struct cx88_buffer *buf = list_entry(dmaq->active.next,
+ struct cx88_buffer, list);
+
+ list_del(&buf->list);
+ vb2_buffer_done(&buf->vb, VB2_BUF_STATE_ERROR);
+ }
+ spin_unlock_irqrestore(&dev->slock, flags);
+}
+
+const struct vb2_ops cx8800_vbi_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 = start_streaming,
+ .stop_streaming = stop_streaming,
+};
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-28 20:55:50 +0300