-
-
-/* ------------------------------------------------------------------ */
-
-static void ts_reset_encoder(struct saa7134_dev* dev)
-{
- saa_writeb(SAA7134_SPECIAL_MODE, 0x00);
- mdelay(10);
- saa_writeb(SAA7134_SPECIAL_MODE, 0x01);
- set_current_state(TASK_INTERRUPTIBLE);
- schedule_timeout(HZ/10);
-}
-
-static int ts_init_encoder(struct saa7134_dev* dev, void* arg)
-{
- ts_reset_encoder(dev);
- saa7134_i2c_call_clients(dev, MPEG_SETPARAMS, arg);
- return 0;
-}
-
-
-/* ------------------------------------------------------------------ */
-
-static int ts_open(struct inode *inode, struct file *file)
-{
- int minor = iminor(inode);
- struct saa7134_dev *h,*dev = NULL;
- struct list_head *list;
- int err;
-
- list_for_each(list,&saa7134_devlist) {
- h = list_entry(list, struct saa7134_dev, devlist);
- if (h->ts_dev && h->ts_dev->minor == minor)
- dev = h;
- }
- if (NULL == dev)
- return -ENODEV;
-
- dprintk("open minor=%d\n",minor);
- down(&dev->ts.ts.lock);
- err = -EBUSY;
- if (dev->ts.users)
- goto done;
-
- dev->ts.started = 0;
- dev->ts.users++;
- file->private_data = dev;
- err = 0;
-
- done:
- up(&dev->ts.ts.lock);
- return err;
-}
-
-static int ts_release(struct inode *inode, struct file *file)
-{
- struct saa7134_dev *dev = file->private_data;
-
- if (dev->ts.ts.streaming)
- videobuf_streamoff(file,&dev->ts.ts);
- down(&dev->ts.ts.lock);
- if (dev->ts.ts.reading)
- videobuf_read_stop(file,&dev->ts.ts);
- dev->ts.users--;
-
- /* stop the encoder */
- if (dev->ts.started)
- ts_reset_encoder(dev);
-
- up(&dev->ts.ts.lock);
- return 0;
-}
-
-static ssize_t
-ts_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
-{
- struct saa7134_dev *dev = file->private_data;
-
- if (!dev->ts.started) {
- ts_init_encoder(dev, NULL);
- dev->ts.started = 1;
- }
-
- return videobuf_read_stream(file, &dev->ts.ts, data, count, ppos, 0);
-}
-
-static unsigned int
-ts_poll(struct file *file, struct poll_table_struct *wait)
-{
- struct saa7134_dev *dev = file->private_data;
-
- return videobuf_poll_stream(file, &dev->ts.ts, wait);
-}
-
-
-static int
-ts_mmap(struct file *file, struct vm_area_struct * vma)
-{
- struct saa7134_dev *dev = file->private_data;
-
- return videobuf_mmap_mapper(vma, &dev->ts.ts);
-}
-
-/*
- * This function is _not_ called directly, but from
- * video_generic_ioctl (and maybe others). userspace
- * copying is done already, arg is a kernel pointer.
- */
-static int ts_do_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, void *arg)
-{
- struct saa7134_dev *dev = file->private_data;
-
- if (ts_debug > 1)
- saa7134_print_ioctl(dev->name,cmd);
- switch (cmd) {
- case VIDIOC_QUERYCAP:
- {
- struct v4l2_capability *cap = arg;
-
- memset(cap,0,sizeof(*cap));
- strcpy(cap->driver, "saa7134");
- strlcpy(cap->card, saa7134_boards[dev->board].name,
- sizeof(cap->card));
- sprintf(cap->bus_info,"PCI:%s",pci_name(dev->pci));
- cap->version = SAA7134_VERSION_CODE;
- cap->capabilities =
- V4L2_CAP_VIDEO_CAPTURE |
- V4L2_CAP_READWRITE |
- V4L2_CAP_STREAMING;
- return 0;
- }
-
- /* --- input switching --------------------------------------- */
- case VIDIOC_ENUMINPUT:
- {
- struct v4l2_input *i = arg;
-
- if (i->index != 0)
- return -EINVAL;
- i->type = V4L2_INPUT_TYPE_CAMERA;
- strcpy(i->name,"CCIR656");
- return 0;
- }
- case VIDIOC_G_INPUT:
- {
- int *i = arg;
- *i = 0;
- return 0;
- }
- case VIDIOC_S_INPUT:
- {
- int *i = arg;
-
- if (*i != 0)
- return -EINVAL;
- return 0;
- }
- /* --- capture ioctls ---------------------------------------- */
-
- case VIDIOC_ENUM_FMT:
- {
- struct v4l2_fmtdesc *f = arg;
- int index;
-
- index = f->index;
- if (index != 0)
- return -EINVAL;
-
- memset(f,0,sizeof(*f));
- f->index = index;
- strlcpy(f->description, "MPEG TS", sizeof(f->description));
- f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
- f->pixelformat = V4L2_PIX_FMT_MPEG;
- return 0;
- }
-
- case VIDIOC_G_FMT:
- {
- struct v4l2_format *f = arg;
-
- memset(f,0,sizeof(*f));
- f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
-
- /* FIXME: translate subsampling type EMPRESS into
- * width/height: */
- f->fmt.pix.width = 720; /* D1 */
- f->fmt.pix.height = 576;
- f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
- f->fmt.pix.sizeimage = TS_PACKET_SIZE*ts_nr_packets;
- return 0;
- }
-
- case VIDIOC_S_FMT:
- {
- struct v4l2_format *f = arg;
-
- if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
- return -EINVAL;
-
- /*
- FIXME: translate and round width/height into EMPRESS
- subsample type:
-
- type | PAL | NTSC
- ---------------------------
- SIF | 352x288 | 352x240
- 1/2 D1 | 352x576 | 352x480
- 2/3 D1 | 480x576 | 480x480
- D1 | 720x576 | 720x480
- */
-
- f->fmt.pix.width = 720; /* D1 */
- f->fmt.pix.height = 576;
- f->fmt.pix.pixelformat = V4L2_PIX_FMT_MPEG;
- f->fmt.pix.sizeimage = TS_PACKET_SIZE*ts_nr_packets;
- return 0;
- }
-
- case VIDIOC_REQBUFS:
- return videobuf_reqbufs(file,&dev->ts.ts,arg);
-
- case VIDIOC_QUERYBUF:
- return videobuf_querybuf(&dev->ts.ts,arg);
-
- case VIDIOC_QBUF:
- return videobuf_qbuf(file,&dev->ts.ts,arg);
-
- case VIDIOC_DQBUF:
- return videobuf_dqbuf(file,&dev->ts.ts,arg);
-
- case VIDIOC_STREAMON:
- return videobuf_streamon(file,&dev->ts.ts);
-
- case VIDIOC_STREAMOFF:
- return videobuf_streamoff(file,&dev->ts.ts);
-
- case VIDIOC_QUERYCTRL:
- case VIDIOC_G_CTRL:
- case VIDIOC_S_CTRL:
- return saa7134_common_ioctl(dev, cmd, arg);
-
- case MPEG_SETPARAMS:
- return ts_init_encoder(dev, arg);
-
- default:
- return -ENOIOCTLCMD;
- }
- return 0;
-}
-
-static int ts_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long arg)
-{
- return video_usercopy(inode, file, cmd, arg, ts_do_ioctl);
-}
-
-
-static struct file_operations ts_fops =
-{
- .owner = THIS_MODULE,
- .open = ts_open,
- .release = ts_release,
- .read = ts_read,
- .poll = ts_poll,
- .mmap = ts_mmap,
- .ioctl = ts_ioctl,
- .llseek = no_llseek,
-};
-