cx88-video.c

trident tm5600的linux驱动

		status = cx_read(MO_PCI_INTSTAT) &
			(core->pci_irqmask | PCI_INT_VIDINT);
		if (0 == status)
			goto out;
		cx_write(MO_PCI_INTSTAT, status);
		handled = 1;

		if (status & core->pci_irqmask)
			cx88_core_irq(core,status);
		if (status & PCI_INT_VIDINT)
			cx8800_vid_irq(dev);
	};
	if (10 == loop) {
		printk(KERN_WARNING "%s/0: irq loop -- clearing mask\n",
		       core->name);
		cx_write(MO_PCI_INTMSK,0);
	}

 out:
	return IRQ_RETVAL(handled);
}

/* ----------------------------------------------------------- */
/* exported stuff                                              */

static const struct file_operations video_fops =
{
	.owner	       = THIS_MODULE,
	.open	       = video_open,
	.release       = video_release,
	.read	       = video_read,
	.poll          = video_poll,
	.mmap	       = video_mmap,
	.ioctl	       = video_ioctl2,
	.compat_ioctl  = v4l_compat_ioctl32,
	.llseek        = no_llseek,
};

static const struct v4l2_ioctl_ops video_ioctl_ops = {
	.vidioc_querycap      = vidioc_querycap,
	.vidioc_enum_fmt_vid_cap  = vidioc_enum_fmt_vid_cap,
	.vidioc_g_fmt_vid_cap     = vidioc_g_fmt_vid_cap,
	.vidioc_try_fmt_vid_cap   = vidioc_try_fmt_vid_cap,
	.vidioc_s_fmt_vid_cap     = vidioc_s_fmt_vid_cap,
	.vidioc_g_fmt_vbi_cap     = cx8800_vbi_fmt,
	.vidioc_try_fmt_vbi_cap   = cx8800_vbi_fmt,
	.vidioc_s_fmt_vbi_cap     = cx8800_vbi_fmt,
	.vidioc_reqbufs       = vidioc_reqbufs,
	.vidioc_querybuf      = vidioc_querybuf,
	.vidioc_qbuf          = vidioc_qbuf,
	.vidioc_dqbuf         = vidioc_dqbuf,
	.vidioc_s_std         = vidioc_s_std,
	.vidioc_enum_input    = vidioc_enum_input,
	.vidioc_g_input       = vidioc_g_input,
	.vidioc_s_input       = vidioc_s_input,
	.vidioc_queryctrl     = vidioc_queryctrl,
	.vidioc_g_ctrl        = vidioc_g_ctrl,
	.vidioc_s_ctrl        = vidioc_s_ctrl,
	.vidioc_streamon      = vidioc_streamon,
	.vidioc_streamoff     = vidioc_streamoff,
#ifdef CONFIG_VIDEO_V4L1_COMPAT
	.vidiocgmbuf          = vidiocgmbuf,
#endif
	.vidioc_g_tuner       = vidioc_g_tuner,
	.vidioc_s_tuner       = vidioc_s_tuner,
	.vidioc_g_frequency   = vidioc_g_frequency,
	.vidioc_s_frequency   = vidioc_s_frequency,
#ifdef CONFIG_VIDEO_ADV_DEBUG
	.vidioc_g_register    = vidioc_g_register,
	.vidioc_s_register    = vidioc_s_register,
#endif
};

static struct video_device cx8800_vbi_template;

static struct video_device cx8800_video_template = {
	.name                 = "cx8800-video",
	.fops                 = &video_fops,
	.minor                = -1,
	.ioctl_ops 	      = &video_ioctl_ops,
	.tvnorms              = CX88_NORMS,
	.current_norm         = V4L2_STD_NTSC_M,
};

static const struct file_operations radio_fops =
{
	.owner         = THIS_MODULE,
	.open          = video_open,
	.release       = video_release,
	.ioctl         = video_ioctl2,
	.compat_ioctl  = v4l_compat_ioctl32,
	.llseek        = no_llseek,
};

static const struct v4l2_ioctl_ops radio_ioctl_ops = {
	.vidioc_querycap      = radio_querycap,
	.vidioc_g_tuner       = radio_g_tuner,
	.vidioc_enum_input    = radio_enum_input,
	.vidioc_g_audio       = radio_g_audio,
	.vidioc_s_tuner       = radio_s_tuner,
	.vidioc_s_audio       = radio_s_audio,
	.vidioc_s_input       = radio_s_input,
	.vidioc_queryctrl     = radio_queryctrl,
	.vidioc_g_ctrl        = vidioc_g_ctrl,
	.vidioc_s_ctrl        = vidioc_s_ctrl,
	.vidioc_g_frequency   = vidioc_g_frequency,
	.vidioc_s_frequency   = vidioc_s_frequency,
#ifdef CONFIG_VIDEO_ADV_DEBUG
	.vidioc_g_register    = vidioc_g_register,
	.vidioc_s_register    = vidioc_s_register,
#endif
};

static struct video_device cx8800_radio_template = {
	.name                 = "cx8800-radio",
	.fops                 = &radio_fops,
	.minor                = -1,
	.ioctl_ops 	      = &radio_ioctl_ops,
};

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

static void cx8800_unregister_video(struct cx8800_dev *dev)
{
	if (dev->radio_dev) {
		if (-1 != dev->radio_dev->minor)
			video_unregister_device(dev->radio_dev);
		else
			video_device_release(dev->radio_dev);
		dev->radio_dev = NULL;
	}
	if (dev->vbi_dev) {
		if (-1 != dev->vbi_dev->minor)
			video_unregister_device(dev->vbi_dev);
		else
			video_device_release(dev->vbi_dev);
		dev->vbi_dev = NULL;
	}
	if (dev->video_dev) {
		if (-1 != dev->video_dev->minor)
			video_unregister_device(dev->video_dev);
		else
			video_device_release(dev->video_dev);
		dev->video_dev = NULL;
	}
}

static int __devinit cx8800_initdev(struct pci_dev *pci_dev,
				    const struct pci_device_id *pci_id)
{
	struct cx8800_dev *dev;
	struct cx88_core *core;

	int err;

	dev = kzalloc(sizeof(*dev),GFP_KERNEL);
	if (NULL == dev)
		return -ENOMEM;

	/* pci init */
	dev->pci = pci_dev;
	if (pci_enable_device(pci_dev)) {
		err = -EIO;
		goto fail_free;
	}
	core = cx88_core_get(dev->pci);
	if (NULL == core) {
		err = -EINVAL;
		goto fail_free;
	}
	dev->core = core;

	/* print pci info */
	pci_read_config_byte(pci_dev, PCI_CLASS_REVISION, &dev->pci_rev);
	pci_read_config_byte(pci_dev, PCI_LATENCY_TIMER,  &dev->pci_lat);
	printk(KERN_INFO "%s/0: found at %s, rev: %d, irq: %d, "
	       "latency: %d, mmio: 0x%llx\n", core->name,
	       pci_name(pci_dev), dev->pci_rev, pci_dev->irq,
	       dev->pci_lat,(unsigned long long)pci_resource_start(pci_dev,0));

	pci_set_master(pci_dev);
	if (!pci_dma_supported(pci_dev,DMA_32BIT_MASK)) {
		printk("%s/0: Oops: no 32bit PCI DMA ???\n",core->name);
		err = -EIO;
		goto fail_core;
	}

	/* Initialize VBI template */
	memcpy( &cx8800_vbi_template, &cx8800_video_template,
		sizeof(cx8800_vbi_template) );
	strcpy(cx8800_vbi_template.name,"cx8800-vbi");

	/* initialize driver struct */
#if 0
	/* moved to cx88_core_get */
	init_MUTEX(&dev->lock);
#endif
	spin_lock_init(&dev->slock);
	core->tvnorm = cx8800_video_template.current_norm;

	/* init video dma queues */
	INIT_LIST_HEAD(&dev->vidq.active);
	INIT_LIST_HEAD(&dev->vidq.queued);
	dev->vidq.timeout.function = cx8800_vid_timeout;
	dev->vidq.timeout.data     = (unsigned long)dev;
	init_timer(&dev->vidq.timeout);
	cx88_risc_stopper(dev->pci,&dev->vidq.stopper,
			  MO_VID_DMACNTRL,0x11,0x00);

	/* init vbi dma queues */
	INIT_LIST_HEAD(&dev->vbiq.active);
	INIT_LIST_HEAD(&dev->vbiq.queued);
	dev->vbiq.timeout.function = cx8800_vbi_timeout;
	dev->vbiq.timeout.data     = (unsigned long)dev;
	init_timer(&dev->vbiq.timeout);
	cx88_risc_stopper(dev->pci,&dev->vbiq.stopper,
			  MO_VID_DMACNTRL,0x88,0x00);

	/* get irq */
	err = request_irq(pci_dev->irq, cx8800_irq,
			  IRQF_SHARED | IRQF_DISABLED, core->name, dev);
	if (err < 0) {
		printk(KERN_ERR "%s/0: can't get IRQ %d\n",
		       core->name,pci_dev->irq);
		goto fail_core;
	}
	cx_set(MO_PCI_INTMSK, core->pci_irqmask);

	/* load and configure helper modules */

	if (core->board.audio_chip == V4L2_IDENT_WM8775)
		request_module("wm8775");

	switch (core->boardnr) {
	case CX88_BOARD_DVICO_FUSIONHDTV_5_GOLD:
	case CX88_BOARD_DVICO_FUSIONHDTV_7_GOLD:
		request_module("rtc-isl1208");
		/* break intentionally omitted */
	case CX88_BOARD_DVICO_FUSIONHDTV_5_PCI_NANO:
		request_module("ir-kbd-i2c");
	}

	/* register v4l devices */
	dev->video_dev = cx88_vdev_init(core,dev->pci,
					&cx8800_video_template,"video");
	err = video_register_device(dev->video_dev,VFL_TYPE_GRABBER,
				    video_nr[core->nr]);
	if (err < 0) {
		printk(KERN_ERR "%s/0: can't register video device\n",
		       core->name);
		goto fail_unreg;
	}
	printk(KERN_INFO "%s/0: registered device video%d [v4l2]\n",
	       core->name, dev->video_dev->num);

	dev->vbi_dev = cx88_vdev_init(core,dev->pci,&cx8800_vbi_template,"vbi");
	err = video_register_device(dev->vbi_dev,VFL_TYPE_VBI,
				    vbi_nr[core->nr]);
	if (err < 0) {
		printk(KERN_ERR "%s/0: can't register vbi device\n",
		       core->name);
		goto fail_unreg;
	}
	printk(KERN_INFO "%s/0: registered device vbi%d\n",
	       core->name, dev->vbi_dev->num);

	if (core->board.radio.type == CX88_RADIO) {
		dev->radio_dev = cx88_vdev_init(core,dev->pci,
						&cx8800_radio_template,"radio");
		err = video_register_device(dev->radio_dev,VFL_TYPE_RADIO,
					    radio_nr[core->nr]);
		if (err < 0) {
			printk(KERN_ERR "%s/0: can't register radio device\n",
			       core->name);
			goto fail_unreg;
		}
		printk(KERN_INFO "%s/0: registered device radio%d\n",
		       core->name, dev->radio_dev->num);
	}

	/* everything worked */
	list_add_tail(&dev->devlist,&cx8800_devlist);
	pci_set_drvdata(pci_dev,dev);

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

	/* start tvaudio thread */
	if (core->board.tuner_type != TUNER_ABSENT) {
		core->kthread = kthread_run(cx88_audio_thread, core, "cx88 tvaudio");
		if (IS_ERR(core->kthread)) {
			err = PTR_ERR(core->kthread);
			printk(KERN_ERR "%s/0: failed to create cx88 audio thread, err=%d\n",
			       core->name, err);
		}
	}
	return 0;

fail_unreg:
	cx8800_unregister_video(dev);
	free_irq(pci_dev->irq, dev);
fail_core:
	cx88_core_put(core,dev->pci);
fail_free:
	kfree(dev);
	return err;
}

static void __devexit cx8800_finidev(struct pci_dev *pci_dev)
{
	struct cx8800_dev *dev = pci_get_drvdata(pci_dev);
	struct cx88_core *core = dev->core;

	/* stop thread */
	if (core->kthread) {
		kthread_stop(core->kthread);
		core->kthread = NULL;
	}

	if (core->ir)
		cx88_ir_stop(core, core->ir);

	cx88_shutdown(core); /* FIXME */
	pci_disable_device(pci_dev);

	/* unregister stuff */

	free_irq(pci_dev->irq, dev);
	cx8800_unregister_video(dev);
	pci_set_drvdata(pci_dev, NULL);

	/* free memory */
	btcx_riscmem_free(dev->pci,&dev->vidq.stopper);
	list_del(&dev->devlist);
	cx88_core_put(core,dev->pci);
	kfree(dev);
}

#ifdef CONFIG_PM
static int cx8800_suspend(struct pci_dev *pci_dev, pm_message_t state)
{
	struct cx8800_dev *dev = pci_get_drvdata(pci_dev);
	struct cx88_core *core = dev->core;

	/* stop video+vbi capture */
	spin_lock(&dev->slock);
	if (!list_empty(&dev->vidq.active)) {
		printk("%s/0: suspend video\n", core->name);
		stop_video_dma(dev);
		del_timer(&dev->vidq.timeout);
	}
	if (!list_empty(&dev->vbiq.active)) {
		printk("%s/0: suspend vbi\n", core->name);
		cx8800_stop_vbi_dma(dev);
		del_timer(&dev->vbiq.timeout);
	}
	spin_unlock(&dev->slock);

	if (core->ir)
		cx88_ir_stop(core, core->ir);
#if 1
	/* FIXME -- shutdown device */
	cx88_shutdown(core);
#endif

	pci_save_state(pci_dev);
	if (0 != pci_set_power_state(pci_dev, pci_choose_state(pci_dev, state))) {
		pci_disable_device(pci_dev);
		dev->state.disabled = 1;
	}
	return 0;
}

static int cx8800_resume(struct pci_dev *pci_dev)
{
	struct cx8800_dev *dev = pci_get_drvdata(pci_dev);
	struct cx88_core *core = dev->core;
	int err;

	if (dev->state.disabled) {
		err=pci_enable_device(pci_dev);
		if (err) {
			printk(KERN_ERR "%s/0: can't enable device\n",
			       core->name);
			return err;
		}

		dev->state.disabled = 0;
	}
	err= pci_set_power_state(pci_dev, PCI_D0);
	if (err) {
		printk(KERN_ERR "%s/0: can't set power state\n", core->name);
		pci_disable_device(pci_dev);
		dev->state.disabled = 1;

		return err;
	}
	pci_restore_state(pci_dev);

#if 1
	/* FIXME: re-initialize hardware */
	cx88_reset(core);
#endif
	if (core->ir)
		cx88_ir_start(core, core->ir);

	cx_set(MO_PCI_INTMSK, core->pci_irqmask);

	/* restart video+vbi capture */
	spin_lock(&dev->slock);
	if (!list_empty(&dev->vidq.active)) {
		printk("%s/0: resume video\n", core->name);
		restart_video_queue(dev,&dev->vidq);
	}
	if (!list_empty(&dev->vbiq.active)) {
		printk("%s/0: resume vbi\n", core->name);
		cx8800_restart_vbi_queue(dev,&dev->vbiq);
	}
	spin_unlock(&dev->slock);

	return 0;
}
#endif

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

static struct pci_device_id cx8800_pci_tbl[] = {
	{
		.vendor       = 0x14f1,
		.device       = 0x8800,
		.subvendor    = PCI_ANY_ID,
		.subdevice    = PCI_ANY_ID,
	},{
		/* --- end of list --- */
	}
};
MODULE_DEVICE_TABLE(pci, cx8800_pci_tbl);

static struct pci_driver cx8800_pci_driver = {
	.name     = "cx8800",
	.id_table = cx8800_pci_tbl,
	.probe    = cx8800_initdev,
	.remove   = __devexit_p(cx8800_finidev),
#ifdef CONFIG_PM
	.suspend  = cx8800_suspend,
	.resume   = cx8800_resume,
#endif
};

static int cx8800_init(void)
{
	printk(KERN_INFO "cx88/0: cx2388x v4l2 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 pci_register_driver(&cx8800_pci_driver);
}

static void cx8800_fini(void)
{
	pci_unregister_driver(&cx8800_pci_driver);
}

module_init(cx8800_init);
module_exit(cx8800_fini);

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