cx88-blackbird.c

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	qctrl->id = v4l2_ctrl_next(ctrl_classes, qctrl->id);
	if (unlikely(qctrl->id == 0))
		return -EINVAL;
	return cx8800_ctrl_query(qctrl);
}

static int vidioc_enum_input (struct file *file, void *priv,
				struct v4l2_input *i)
{
	struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;
	return cx88_enum_input (core,i);
}

static int vidioc_g_ctrl (struct file *file, void *priv,
				struct v4l2_control *ctl)
{
	struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;
	return
		cx88_get_control(core,ctl);
}

static int vidioc_s_ctrl (struct file *file, void *priv,
				struct v4l2_control *ctl)
{
	struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;
	return
		cx88_set_control(core,ctl);
}

static int vidioc_g_frequency (struct file *file, void *priv,
				struct v4l2_frequency *f)
{
	struct cx8802_fh  *fh   = priv;
	struct cx88_core  *core = fh->dev->core;

	if (unlikely(UNSET == core->board.tuner_type))
		return -EINVAL;

	f->type = V4L2_TUNER_ANALOG_TV;
	f->frequency = core->freq;
	cx88_call_i2c_clients(core,VIDIOC_G_FREQUENCY,f);

	return 0;
}

static int vidioc_g_input (struct file *file, void *priv, unsigned int *i)
{
	struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;

	*i = core->input;
	return 0;
}

static int vidioc_s_input (struct file *file, void *priv, unsigned int i)
{
	struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;

	if (i >= 4)
		return -EINVAL;

	mutex_lock(&core->lock);
	cx88_newstation(core);
	cx88_video_mux(core,i);
	mutex_unlock(&core->lock);
	return 0;
}

static int vidioc_g_tuner (struct file *file, void *priv,
				struct v4l2_tuner *t)
{
	struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;
	u32 reg;

	if (unlikely(UNSET == core->board.tuner_type))
		return -EINVAL;
	if (0 != t->index)
		return -EINVAL;

	strcpy(t->name, "Television");
	t->type       = V4L2_TUNER_ANALOG_TV;
	t->capability = V4L2_TUNER_CAP_NORM;
	t->rangehigh  = 0xffffffffUL;

	cx88_get_stereo(core ,t);
	reg = cx_read(MO_DEVICE_STATUS);
	t->signal = (reg & (1<<5)) ? 0xffff : 0x0000;
	return 0;
}

static int vidioc_s_tuner (struct file *file, void *priv,
				struct v4l2_tuner *t)
{
	struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;

	if (UNSET == core->board.tuner_type)
		return -EINVAL;
	if (0 != t->index)
		return -EINVAL;

	cx88_set_stereo(core, t->audmode, 1);
	return 0;
}

static int vidioc_s_std (struct file *file, void *priv, v4l2_std_id *id)
{
	struct cx88_core  *core = ((struct cx8802_fh *)priv)->dev->core;

	mutex_lock(&core->lock);
	cx88_set_tvnorm(core,*id);
	mutex_unlock(&core->lock);
	return 0;
}

/* FIXME: cx88_ioctl_hook not implemented */

static int mpeg_open(struct inode *inode, struct file *file)
{
	int minor = iminor(inode);
	struct cx8802_dev *dev = NULL;
	struct cx8802_fh *fh;
	struct cx8802_driver *drv = NULL;
	int err;

	dev = cx8802_get_device(inode);

	dprintk( 1, "%s\n", __FUNCTION__);

	if (dev == NULL)
		return -ENODEV;

	/* Make sure we can acquire the hardware */
	drv = cx8802_get_driver(dev, CX88_MPEG_BLACKBIRD);
	if (drv) {
		err = drv->request_acquire(drv);
		if(err != 0) {
			dprintk(1,"%s: Unable to acquire hardware, %d\n", __FUNCTION__, err);
			return err;
		}
	}

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

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

	videobuf_queue_pci_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;
	struct cx8802_dev *dev = NULL;
	struct cx8802_driver *drv = NULL;

	/* blackbird_api_cmd(fh->dev, CX2341X_ENC_STOP_CAPTURE, 3, 0, BLACKBIRD_END_NOW, 0, 0x13); */
	blackbird_api_cmd(fh->dev, CX2341X_ENC_STOP_CAPTURE, 3, 0,
			BLACKBIRD_END_NOW,
			BLACKBIRD_MPEG_CAPTURE,
			BLACKBIRD_RAW_BITS_NONE
		);

	cx8802_cancel_buffers(fh->dev);
	/* stop mpeg capture */
	videobuf_stop(&fh->mpegq);

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

	/* Make sure we release the hardware */
	dev = cx8802_get_device(inode);
	if (dev == NULL)
		return -ENODEV;

	drv = cx8802_get_driver(dev, CX88_MPEG_BLACKBIRD);
	if (drv)
		drv->request_release(drv);

	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 const struct file_operations mpeg_fops =
{
	.owner	       = THIS_MODULE,
	.open	       = mpeg_open,
	.release       = mpeg_release,
	.read	       = mpeg_read,
	.poll          = mpeg_poll,
	.mmap	       = mpeg_mmap,
	.ioctl	       = video_ioctl2,
	.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,
	.fops                 = &mpeg_fops,
	.minor                = -1,
	.vidioc_querymenu     = vidioc_querymenu,
	.vidioc_querycap      = vidioc_querycap,
	.vidioc_enum_fmt_cap  = vidioc_enum_fmt_cap,
	.vidioc_g_fmt_cap     = vidioc_g_fmt_cap,
	.vidioc_try_fmt_cap   = vidioc_try_fmt_cap,
	.vidioc_s_fmt_cap     = vidioc_s_fmt_cap,
	.vidioc_reqbufs       = vidioc_reqbufs,
	.vidioc_querybuf      = vidioc_querybuf,
	.vidioc_qbuf          = vidioc_qbuf,
	.vidioc_dqbuf         = vidioc_dqbuf,
	.vidioc_streamon      = vidioc_streamon,
	.vidioc_streamoff     = vidioc_streamoff,
	.vidioc_g_ext_ctrls   = vidioc_g_ext_ctrls,
	.vidioc_s_ext_ctrls   = vidioc_s_ext_ctrls,
	.vidioc_try_ext_ctrls = vidioc_try_ext_ctrls,
	.vidioc_s_frequency   = vidioc_s_frequency,
	.vidioc_log_status    = vidioc_log_status,
	.vidioc_queryctrl     = vidioc_queryctrl,
	.vidioc_enum_input    = vidioc_enum_input,
	.vidioc_g_ctrl        = vidioc_g_ctrl,
	.vidioc_s_ctrl        = vidioc_s_ctrl,
	.vidioc_g_frequency   = vidioc_g_frequency,
	.vidioc_g_input       = vidioc_g_input,
	.vidioc_s_input       = vidioc_s_input,
	.vidioc_g_tuner       = vidioc_g_tuner,
	.vidioc_s_tuner       = vidioc_s_tuner,
	.vidioc_s_std         = vidioc_s_std,
	.tvnorms              = CX88_NORMS,
	.current_norm         = V4L2_STD_NTSC_M,
};

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

/* The CX8802 MPEG API will call this when we can use the hardware */
static int cx8802_blackbird_advise_acquire(struct cx8802_driver *drv)
{
	struct cx88_core *core = drv->core;
	int err = 0;

	switch (core->boardnr) {
	case CX88_BOARD_HAUPPAUGE_HVR1300:
		/* By default, core setup will leave the cx22702 out of reset, on the bus.
		 * We left the hardware on power up with the cx22702 active.
		 * We're being given access to re-arrange the GPIOs.
		 * Take the bus off the cx22702 and put the cx23416 on it.
		 */
		cx_clear(MO_GP0_IO, 0x00000080); /* cx22702 in reset */
		cx_set(MO_GP0_IO,   0x00000004); /* Disable the cx22702 */
		break;
	default:
		err = -ENODEV;
	}
	return err;
}

/* The CX8802 MPEG API will call this when we need to release the hardware */
static int cx8802_blackbird_advise_release(struct cx8802_driver *drv)
{
	struct cx88_core *core = drv->core;
	int err = 0;

	switch (core->boardnr) {
	case CX88_BOARD_HAUPPAUGE_HVR1300:
		/* Exit leaving the cx23416 on the bus */
		break;
	default:
		err = -ENODEV;
	}
	return err;
}

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 cx8802_blackbird_probe(struct cx8802_driver *drv)
{
	struct cx88_core *core = drv->core;
	struct cx8802_dev *dev = core->dvbdev;
	int err;

	dprintk( 1, "%s\n", __FUNCTION__);
	dprintk( 1, " ->being probed by Card=%d Name=%s, PCI %02x:%02x\n",
		core->boardnr,
		core->name,
		core->pci_bus,
		core->pci_slot);

	err = -ENODEV;
	if (!(core->board.mpeg & CX88_MPEG_BLACKBIRD))
		goto fail_core;

	dev->width = 720;
	dev->height = 576;
	cx2341x_fill_defaults(&dev->params);
	dev->params.port = CX2341X_PORT_STREAMING;

	cx8802_mpeg_template.current_norm = core->tvnorm;

	if (core->tvnorm & V4L2_STD_525_60) {
		dev->height = 480;
	} else {
		dev->height = 576;
	}

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

	blackbird_register_video(dev);

	/* initial device configuration: needed ? */
	mutex_lock(&dev->core->lock);
//	init_controls(core);
	cx88_set_tvnorm(core,core->tvnorm);
	cx88_video_mux(core,0);
	mutex_unlock(&dev->core->lock);

	return 0;

 fail_core:
	return err;
}

static int cx8802_blackbird_remove(struct cx8802_driver *drv)
{
	/* blackbird */
	blackbird_unregister_video(drv->core->dvbdev);

	return 0;
}

static struct cx8802_driver cx8802_blackbird_driver = {
	.type_id	= CX88_MPEG_BLACKBIRD,
	.hw_access	= CX8802_DRVCTL_SHARED,
	.probe		= cx8802_blackbird_probe,
	.remove		= cx8802_blackbird_remove,
	.advise_acquire	= cx8802_blackbird_advise_acquire,
	.advise_release	= cx8802_blackbird_advise_release,
};

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
	return cx8802_register_driver(&cx8802_blackbird_driver);
}

static void blackbird_fini(void)
{
	cx8802_unregister_driver(&cx8802_blackbird_driver);
}

module_init(blackbird_init);
module_exit(blackbird_fini);

module_param_named(video_debug,cx8802_mpeg_template.debug, int, 0644);
MODULE_PARM_DESC(debug,"enable debug messages [video]");

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