diff options
Diffstat (limited to 'drivers/media')
| -rw-r--r-- | drivers/media/video/cx23885/cx23885-core.c | 48 | ||||
| -rw-r--r-- | drivers/media/video/cx23885/cx23885-vbi.c | 9 | ||||
| -rw-r--r-- | drivers/media/video/cx23885/cx23885-video.c | 6 | ||||
| -rw-r--r-- | drivers/media/video/cx23885/cx23885.h | 5 |
4 files changed, 62 insertions, 6 deletions
diff --git a/drivers/media/video/cx23885/cx23885-core.c b/drivers/media/video/cx23885/cx23885-core.c index d42d2251d486..40e68b22015e 100644 --- a/drivers/media/video/cx23885/cx23885-core.c +++ b/drivers/media/video/cx23885/cx23885-core.c @@ -1214,6 +1214,54 @@ int cx23885_risc_databuffer(struct pci_dev *pci, return 0; } +int cx23885_risc_vbibuffer(struct pci_dev *pci, struct btcx_riscmem *risc, + struct scatterlist *sglist, unsigned int top_offset, + unsigned int bottom_offset, unsigned int bpl, + unsigned int padding, unsigned int lines) +{ + u32 instructions, fields; + __le32 *rp; + int rc; + + fields = 0; + if (UNSET != top_offset) + fields++; + if (UNSET != bottom_offset) + fields++; + + /* estimate risc mem: worst case is one write per page border + + one write per scan line + syncs + jump (all 2 dwords). Padding + can cause next bpl to start close to a page border. First DMA + region may be smaller than PAGE_SIZE */ + /* write and jump need and extra dword */ + instructions = fields * (1 + ((bpl + padding) * lines) + / PAGE_SIZE + lines); + instructions += 2; + rc = btcx_riscmem_alloc(pci, risc, instructions*12); + if (rc < 0) + return rc; + /* write risc instructions */ + rp = risc->cpu; + + /* Sync to line 6, so US CC line 21 will appear in line '12' + * in the userland vbi payload */ + if (UNSET != top_offset) + rp = cx23885_risc_field(rp, sglist, top_offset, 6, + bpl, padding, lines, 0); + + if (UNSET != bottom_offset) + rp = cx23885_risc_field(rp, sglist, bottom_offset, 0x207, + bpl, padding, lines, 0); + + + + /* save pointer to jmp instruction address */ + risc->jmp = rp; + BUG_ON((risc->jmp - risc->cpu + 2) * sizeof(*risc->cpu) > risc->size); + return 0; +} + + int cx23885_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc, u32 reg, u32 mask, u32 value) { diff --git a/drivers/media/video/cx23885/cx23885-vbi.c b/drivers/media/video/cx23885/cx23885-vbi.c index 1b3a01c8d1fa..10d8af877f12 100644 --- a/drivers/media/video/cx23885/cx23885-vbi.c +++ b/drivers/media/video/cx23885/cx23885-vbi.c @@ -56,12 +56,13 @@ int cx23885_vbi_fmt(struct file *file, void *priv, if (dev->tvnorm & V4L2_STD_525_60) { /* ntsc */ f->fmt.vbi.samples_per_line = VBI_LINE_LENGTH; - f->fmt.vbi.sampling_rate = 28636363; + f->fmt.vbi.sampling_rate = 27000000; f->fmt.vbi.sample_format = V4L2_PIX_FMT_GREY; - f->fmt.vbi.offset = 64 * 4; + f->fmt.vbi.offset = 0; + f->fmt.vbi.flags = 0; f->fmt.vbi.start[0] = 10; f->fmt.vbi.count[0] = 17; - f->fmt.vbi.start[1] = 272; + f->fmt.vbi.start[1] = 263 + 10 + 1; f->fmt.vbi.count[1] = 17; } else if (dev->tvnorm & V4L2_STD_625_50) { /* pal */ @@ -222,7 +223,7 @@ vbi_prepare(struct videobuf_queue *q, struct videobuf_buffer *vb, rc = videobuf_iolock(q, &buf->vb, NULL); if (0 != rc) goto fail; - cx23885_risc_buffer(dev->pci, &buf->risc, + cx23885_risc_vbibuffer(dev->pci, &buf->risc, dma->sglist, 0, buf->vb.width * buf->vb.height, buf->vb.width, 0, diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c index 53d9f9dd927d..cb9e05f92feb 100644 --- a/drivers/media/video/cx23885/cx23885-video.c +++ b/drivers/media/video/cx23885/cx23885-video.c @@ -1070,7 +1070,8 @@ static int vidioc_streamon(struct file *file, void *priv, struct cx23885_dev *dev = fh->dev; dprintk(1, "%s()\n", __func__); - if (unlikely(fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)) + if ((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && + (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE)) return -EINVAL; if (unlikely(i != fh->type)) return -EINVAL; @@ -1087,7 +1088,8 @@ static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type i) int err, res; dprintk(1, "%s()\n", __func__); - if (fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) + if ((fh->type != V4L2_BUF_TYPE_VIDEO_CAPTURE) && + (fh->type != V4L2_BUF_TYPE_VBI_CAPTURE)) return -EINVAL; if (i != fh->type) return -EINVAL; diff --git a/drivers/media/video/cx23885/cx23885.h b/drivers/media/video/cx23885/cx23885.h index 718afd8eafc8..670281af3361 100644 --- a/drivers/media/video/cx23885/cx23885.h +++ b/drivers/media/video/cx23885/cx23885.h @@ -509,6 +509,11 @@ extern int cx23885_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc, unsigned int top_offset, unsigned int bottom_offset, unsigned int bpl, unsigned int padding, unsigned int lines); +extern int cx23885_risc_vbibuffer(struct pci_dev *pci, + struct btcx_riscmem *risc, struct scatterlist *sglist, + unsigned int top_offset, unsigned int bottom_offset, + unsigned int bpl, unsigned int padding, unsigned int lines); + void cx23885_cancel_buffers(struct cx23885_tsport *port); extern int cx23885_restart_queue(struct cx23885_tsport *port, |