static int empress_init(struct saa7134_dev *dev) { int err; dprintk("%s: %s\n",dev->name,__FUNCTION__); dev->empress_dev = video_device_alloc(); if (NULL == dev->empress_dev) return -ENOMEM; *(dev->empress_dev) = saa7134_empress_template; dev->empress_dev->dev = &dev->pci->dev; dev->empress_dev->release = video_device_release; snprintf(dev->empress_dev->name, sizeof(dev->empress_dev->name), "%s empress (%s)", dev->name, saa7134_boards[dev->board].name); INIT_WORK(&dev->empress_workqueue, empress_signal_update); err = video_register_device(dev->empress_dev,VFL_TYPE_GRABBER, empress_nr[dev->nr]); if (err < 0) { printk(KERN_INFO "%s: can't register video device\n", dev->name); video_device_release(dev->empress_dev); dev->empress_dev = NULL; return err; } printk(KERN_INFO "%s: registered device video%d [mpeg]\n", dev->name,dev->empress_dev->minor & 0x1f); videobuf_queue_pci_init(&dev->empress_tsq, &saa7134_ts_qops, dev->pci, &dev->slock, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_ALTERNATE, sizeof(struct saa7134_buf), dev); empress_signal_update(&dev->empress_workqueue); return 0; }
static int video_open(struct saa7146_dev *dev, struct file *file) { struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data; struct saa7146_format *sfmt; fh->video_fmt.width = 384; fh->video_fmt.height = 288; fh->video_fmt.pixelformat = V4L2_PIX_FMT_BGR24; fh->video_fmt.bytesperline = 0; fh->video_fmt.field = V4L2_FIELD_ANY; sfmt = format_by_fourcc(dev,fh->video_fmt.pixelformat); fh->video_fmt.sizeimage = (fh->video_fmt.width * fh->video_fmt.height * sfmt->depth)/8; videobuf_queue_pci_init(&fh->video_q, &video_qops, dev->pci, &dev->slock, V4L2_BUF_TYPE_VIDEO_CAPTURE, V4L2_FIELD_INTERLACED, sizeof(struct saa7146_buf), file); mutex_init(&fh->video_q.lock); return 0; }
static int vbi_open(struct saa7146_dev *dev, struct file *file) { struct saa7146_fh *fh = (struct saa7146_fh *)file->private_data; u32 arbtr_ctrl = saa7146_read(dev, PCI_BT_V1); int ret = 0; DEB_VBI(("dev:%p, fh:%p\n",dev,fh)); ret = saa7146_res_get(fh, RESOURCE_DMA3_BRS); if (0 == ret) { DEB_S(("cannot get vbi RESOURCE_DMA3_BRS resource\n")); return -EBUSY; } /* adjust arbitrition control for video dma 3 */ arbtr_ctrl &= ~0x1f0000; arbtr_ctrl |= 0x1d0000; saa7146_write(dev, PCI_BT_V1, arbtr_ctrl); saa7146_write(dev, MC2, (MASK_04|MASK_20)); memset(&fh->vbi_fmt,0,sizeof(fh->vbi_fmt)); fh->vbi_fmt.sampling_rate = 27000000; fh->vbi_fmt.offset = 248; /* todo */ fh->vbi_fmt.samples_per_line = vbi_pixel_to_capture; fh->vbi_fmt.sample_format = V4L2_PIX_FMT_GREY; /* fixme: this only works for PAL */ fh->vbi_fmt.start[0] = 5; fh->vbi_fmt.count[0] = 16; fh->vbi_fmt.start[1] = 312; fh->vbi_fmt.count[1] = 16; videobuf_queue_pci_init(&fh->vbi_q, &vbi_qops, dev->pci, &dev->slock, V4L2_BUF_TYPE_VBI_CAPTURE, V4L2_FIELD_SEQ_TB, // FIXME: does this really work? sizeof(struct saa7146_buf), file); mutex_init(&fh->vbi_q.lock); init_timer(&fh->vbi_read_timeout); fh->vbi_read_timeout.function = vbi_read_timeout; fh->vbi_read_timeout.data = (unsigned long)file; /* initialize the brs */ if ( 0 != (SAA7146_USE_PORT_B_FOR_VBI & dev->ext_vv_data->flags)) { saa7146_write(dev, BRS_CTRL, MASK_30|MASK_29 | (7 << 19)); } else { saa7146_write(dev, BRS_CTRL, 0x00000001); if (0 != (ret = vbi_workaround(dev))) { DEB_VBI(("vbi workaround failed!\n")); /* return ret;*/ } } /* upload brs register */ saa7146_write(dev, MC2, (MASK_08|MASK_24)); return 0; }