cx88-blackbird.c

V4l driver for DVB HD

};

/* ------------------------------------------------------------------ */

static int mpeg_do_ioctl(struct inode *inode, struct file *file,
			 unsigned int cmd, void *arg)
{
	struct cx8802_fh  *fh  = file->private_data;
	struct cx8802_dev *dev = fh->dev;
	struct cx88_core  *core = dev->core;

	if (debug > 1)
		v4l_print_ioctl(core->name,cmd);

	switch (cmd) {

	/* --- capabilities ------------------------------------------ */
	case VIDIOC_QUERYCAP:
	{
		struct v4l2_capability *cap = arg;

		memset(cap,0,sizeof(*cap));
		strcpy(cap->driver, "cx88_blackbird");
		strlcpy(cap->card, cx88_boards[core->board].name,sizeof(cap->card));
		sprintf(cap->bus_info,"PCI:%s",pci_name(dev->pci));
		cap->version = CX88_VERSION_CODE;
		cap->capabilities =
			V4L2_CAP_VIDEO_CAPTURE |
			V4L2_CAP_READWRITE     |
			V4L2_CAP_STREAMING     |
#if 0
			V4L2_CAP_VBI_CAPTURE   |
			V4L2_CAP_VIDEO_OVERLAY |
#endif
			0;
		if (UNSET != core->tuner_type)
			cap->capabilities |= V4L2_CAP_TUNER;

		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", 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;
		f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
		f->fmt.pix.bytesperline = 0;
		f->fmt.pix.sizeimage    = dev->ts_packet_size * dev->ts_packet_count; /* 188 * 4 * 1024; */
		f->fmt.pix.colorspace   = 0;
		f->fmt.pix.width        = dev->width;
		f->fmt.pix.height       = dev->height;
		f->fmt.pix.field        = fh->mpegq.field;
		dprintk(0,"VIDIOC_G_FMT: w: %d, h: %d, f: %d\n",
			dev->width, dev->height, fh->mpegq.field );
		return 0;
	}
	case VIDIOC_TRY_FMT:
	{
		struct v4l2_format *f = arg;

		f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
		f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
		f->fmt.pix.bytesperline = 0;
		f->fmt.pix.sizeimage    = dev->ts_packet_size * dev->ts_packet_count; /* 188 * 4 * 1024; */;
		f->fmt.pix.colorspace   = 0;
		dprintk(0,"VIDIOC_TRY_FMT: w: %d, h: %d, f: %d\n",
			dev->width, dev->height, fh->mpegq.field );
		return 0;
	}
	case VIDIOC_S_FMT:
	{
		struct v4l2_format *f = arg;

		f->type = V4L2_BUF_TYPE_VIDEO_CAPTURE;
		f->fmt.pix.pixelformat  = V4L2_PIX_FMT_MPEG;
		f->fmt.pix.bytesperline = 0;
		f->fmt.pix.sizeimage    = dev->ts_packet_size * dev->ts_packet_count; /* 188 * 4 * 1024; */;
		f->fmt.pix.colorspace   = 0;
#if 0
		dev->width              = f->fmt.pix.width;
		dev->height             = f->fmt.pix.height;
		fh->mpegq.field         = f->fmt.pix.field;
#endif
#if 0
		cx88_set_scale(core, f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field);
		blackbird_api_cmd(dev, BLACKBIRD_API_SET_RESOLUTION, 2, 0,
					f->fmt.pix.height, f->fmt.pix.width);
#endif
		dprintk(0,"VIDIOC_S_FMT: w: %d, h: %d, f: %d\n",
			f->fmt.pix.width, f->fmt.pix.height, f->fmt.pix.field );
		return 0;
	}

	/* --- streaming capture ------------------------------------- */
	case VIDIOC_REQBUFS:
		return videobuf_reqbufs(&fh->mpegq, arg);

	case VIDIOC_QUERYBUF:
		return videobuf_querybuf(&fh->mpegq, arg);

	case VIDIOC_QBUF:
		return videobuf_qbuf(&fh->mpegq, arg);

	case VIDIOC_DQBUF:
		return videobuf_dqbuf(&fh->mpegq, arg,
				      file->f_flags & O_NONBLOCK);

	case VIDIOC_STREAMON:
		return videobuf_streamon(&fh->mpegq);

	case VIDIOC_STREAMOFF:
		return videobuf_streamoff(&fh->mpegq);

	/* --- mpeg compression -------------------------------------- */
	case VIDIOC_G_MPEGCOMP:
	{
		struct v4l2_mpeg_compression *f = arg;

		memcpy(f,&dev->params,sizeof(*f));
		return 0;
	}
	case VIDIOC_S_MPEGCOMP:
	{
		struct v4l2_mpeg_compression *f = arg;

		blackbird_set_params(dev, f);
		return 0;
	}

	default:
		return cx88_do_ioctl( inode, file, 0, dev->core, cmd, arg, cx88_ioctl_hook );
	}
	return 0;
}

int (*cx88_ioctl_hook)(struct inode *inode, struct file *file,
			unsigned int cmd, void *arg);
unsigned int (*cx88_ioctl_translator)(unsigned int cmd);

static unsigned int mpeg_translate_ioctl(unsigned int cmd)
{
	return cmd;
}

static int mpeg_ioctl(struct inode *inode, struct file *file,
			unsigned int cmd, unsigned long arg)
{
	cmd = cx88_ioctl_translator( cmd );
	return video_usercopy(inode, file, cmd, arg, cx88_ioctl_hook);
}

static int mpeg_open(struct inode *inode, struct file *file)
{
	int minor = iminor(inode);
	struct cx8802_dev *h,*dev = NULL;
	struct cx8802_fh *fh;
	struct list_head *list;

	list_for_each(list,&cx8802_devlist) {
		h = list_entry(list, struct cx8802_dev, devlist);
		if (h->mpeg_dev->minor == minor)
			dev = h;
	}
	if (NULL == dev)
		return -ENODEV;

	if (blackbird_initialize_codec(dev) < 0)
		return -EINVAL;
	dprintk(1,"open minor=%d\n",minor);

	/* allocate + initialize per filehandle data */
	fh = kzalloc(sizeof(*fh),GFP_KERNEL);
	if (NULL == fh)
		return -ENOMEM;
	file->private_data = fh;
	fh->dev      = dev;

	videobuf_queue_init(&fh->mpegq, &blackbird_qops,
			    dev->pci, &dev->slock,
			    V4L2_BUF_TYPE_VIDEO_CAPTURE,
			    V4L2_FIELD_INTERLACED,
			    sizeof(struct cx88_buffer),
			    fh);

	/* FIXME: locking against other video device */
	cx88_set_scale(dev->core, dev->width, dev->height,
			fh->mpegq.field);

	return 0;
}

static int mpeg_release(struct inode *inode, struct file *file)
{
	struct cx8802_fh  *fh  = file->private_data;

	/* blackbird_api_cmd(fh->dev, BLACKBIRD_API_END_CAPTURE, 3, 0, BLACKBIRD_END_NOW, 0, 0x13); */
	blackbird_api_cmd(fh->dev, BLACKBIRD_API_END_CAPTURE, 3, 0,
			BLACKBIRD_END_NOW,
			BLACKBIRD_MPEG_CAPTURE,
			BLACKBIRD_RAW_BITS_NONE
		);

	/* stop mpeg capture */
	if (fh->mpegq.streaming)
		videobuf_streamoff(&fh->mpegq);
	if (fh->mpegq.reading)
		videobuf_read_stop(&fh->mpegq);

	videobuf_mmap_free(&fh->mpegq);
	file->private_data = NULL;
	kfree(fh);
	return 0;
}

static ssize_t
mpeg_read(struct file *file, char __user *data, size_t count, loff_t *ppos)
{
	struct cx8802_fh *fh = file->private_data;

	return videobuf_read_stream(&fh->mpegq, data, count, ppos, 0,
				    file->f_flags & O_NONBLOCK);
}

static unsigned int
mpeg_poll(struct file *file, struct poll_table_struct *wait)
{
	struct cx8802_fh *fh = file->private_data;

	return videobuf_poll_stream(file, &fh->mpegq, wait);
}

static int
mpeg_mmap(struct file *file, struct vm_area_struct * vma)
{
	struct cx8802_fh *fh = file->private_data;

	return videobuf_mmap_mapper(&fh->mpegq, vma);
}

static struct file_operations mpeg_fops =
{
	.owner	       = THIS_MODULE,
	.open	       = mpeg_open,
	.release       = mpeg_release,
	.read	       = mpeg_read,
	.poll          = mpeg_poll,
	.mmap	       = mpeg_mmap,
	.ioctl	       = mpeg_ioctl,
	.llseek        = no_llseek,
};

static struct video_device cx8802_mpeg_template =
{
	.name          = "cx8802",
	.type          = VID_TYPE_CAPTURE|VID_TYPE_TUNER|VID_TYPE_SCALES|VID_TYPE_MPEG_ENCODER,
	.hardware      = 0,
	.fops          = &mpeg_fops,
	.minor         = -1,
};

/* ------------------------------------------------------------------ */

static void blackbird_unregister_video(struct cx8802_dev *dev)
{
	if (dev->mpeg_dev) {
		if (-1 != dev->mpeg_dev->minor)
			video_unregister_device(dev->mpeg_dev);
		else
			video_device_release(dev->mpeg_dev);
		dev->mpeg_dev = NULL;
	}
}

static int blackbird_register_video(struct cx8802_dev *dev)
{
	int err;

	dev->mpeg_dev = cx88_vdev_init(dev->core,dev->pci,
				       &cx8802_mpeg_template,"mpeg");
	err = video_register_device(dev->mpeg_dev,VFL_TYPE_GRABBER, -1);
	if (err < 0) {
		printk(KERN_INFO "%s/2: can't register mpeg device\n",
		       dev->core->name);
		return err;
	}
	printk(KERN_INFO "%s/2: registered device video%d [mpeg]\n",
	       dev->core->name,dev->mpeg_dev->minor & 0x1f);
	return 0;
}

/* ----------------------------------------------------------- */

static int __devinit blackbird_probe(struct pci_dev *pci_dev,
				     const struct pci_device_id *pci_id)
{
	struct cx8802_dev *dev;
	struct cx88_core  *core;
	int err;

	/* general setup */
	core = cx88_core_get(pci_dev);
	if (NULL == core)
		return -EINVAL;

	err = -ENODEV;
	if (!cx88_boards[core->board].blackbird)
		goto fail_core;

	err = -ENOMEM;
	dev = kzalloc(sizeof(*dev),GFP_KERNEL);
	if (NULL == dev)
		goto fail_core;
	dev->pci = pci_dev;
	dev->core = core;
	dev->width = 720;
	dev->height = 576;
	memcpy(&dev->params,&default_mpeg_params,sizeof(default_mpeg_params));
	memcpy(&dev->dnr_params,&default_dnr_params,sizeof(default_dnr_params));

	if (core->tuner_formats & V4L2_STD_525_60) {
		dev->height = 480;
		dev->params.vi_frame_rate = 30;
	} else {
		dev->height = 576;
		dev->params.vi_frame_rate = 25;
	}

	err = cx8802_init_common(dev);
	if (0 != err)
		goto fail_free;

	/* blackbird stuff */
	printk("%s/2: cx23416 based mpeg encoder (blackbird reference design)\n",
	       core->name);
	host_setup(dev->core);

	list_add_tail(&dev->devlist,&cx8802_devlist);
	blackbird_register_video(dev);

	/* initial device configuration: needed ? */
#if 0
	down(&dev->lock);
	init_controls(core);
/* #if 1 */
	/* force norm to PAL */
	{
		int i;
		for (i = 0; i < TVNORMS; i++)
			if (tvnorms[i].id == V4L2_STD_PAL_BG)
			{
				cx88_set_tvnorm(core,&tvnorms[i]);
				break;
			}
	}
/* #else */
	cx88_set_tvnorm(core,tvnorms);
/* #endif */
	video_mux(core,0);
	up(&dev->lock);
#endif

	return 0;

 fail_free:
	kfree(dev);
 fail_core:
	cx88_core_put(core,pci_dev);
	return err;
}

static void __devexit blackbird_remove(struct pci_dev *pci_dev)
{
	struct cx8802_dev *dev = pci_get_drvdata(pci_dev);

	/* blackbird */
	blackbird_unregister_video(dev);
	list_del(&dev->devlist);

	/* common */
	cx8802_fini_common(dev);
	cx88_core_put(dev->core,dev->pci);
	kfree(dev);
}

static struct pci_device_id cx8802_pci_tbl[] = {
	{
		.vendor       = 0x14f1,
		.device       = 0x8802,
		.subvendor    = PCI_ANY_ID,
		.subdevice    = PCI_ANY_ID,
	},{
		/* --- end of list --- */
	}
};
MODULE_DEVICE_TABLE(pci, cx8802_pci_tbl);

static struct pci_driver blackbird_pci_driver = {
	.name     = "cx88-blackbird",
	.id_table = cx8802_pci_tbl,
	.probe    = blackbird_probe,
	.remove   = __devexit_p(blackbird_remove),
	.suspend  = cx8802_suspend_common,
	.resume   = cx8802_resume_common,
};

static int blackbird_init(void)
{
	printk(KERN_INFO "cx2388x blackbird driver version %d.%d.%d loaded\n",
	       (CX88_VERSION_CODE >> 16) & 0xff,
	       (CX88_VERSION_CODE >>  8) & 0xff,
	       CX88_VERSION_CODE & 0xff);
#ifdef SNAPSHOT
	printk(KERN_INFO "cx2388x: snapshot date %04d-%02d-%02d\n",
	       SNAPSHOT/10000, (SNAPSHOT/100)%100, SNAPSHOT%100);
#endif
	cx88_ioctl_hook = mpeg_do_ioctl;
	cx88_ioctl_translator = mpeg_translate_ioctl;
	return pci_register_driver(&blackbird_pci_driver);
}

static void blackbird_fini(void)
{
	pci_unregister_driver(&blackbird_pci_driver);
}

module_init(blackbird_init);
module_exit(blackbird_fini);

EXPORT_SYMBOL(cx88_ioctl_hook);
EXPORT_SYMBOL(cx88_ioctl_translator);
EXPORT_SYMBOL(blackbird_set_params);
EXPORT_SYMBOL(blackbird_set_dnr_params);

/* ----------------------------------------------------------- */
/*
 * Local variables:
 * c-basic-offset: 8
 * End:
 * kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off
 */