diff options
Diffstat (limited to 'drivers/media/common/saa7146_fops.c')
| -rw-r--r-- | drivers/media/common/saa7146_fops.c | 555 | 
1 files changed, 0 insertions, 555 deletions
diff --git a/drivers/media/common/saa7146_fops.c b/drivers/media/common/saa7146_fops.c deleted file mode 100644 index e3fedc60fe7..00000000000 --- a/drivers/media/common/saa7146_fops.c +++ /dev/null @@ -1,555 +0,0 @@ -#include <media/saa7146_vv.h> - -/****************************************************************************/ -/* resource management functions, shamelessly stolen from saa7134 driver */ - -int saa7146_res_get(struct saa7146_fh *fh, unsigned int bit) -{ -	struct saa7146_dev *dev = fh->dev; -	struct saa7146_vv *vv = dev->vv_data; - -	if (fh->resources & bit) { -		DEB_D(("already allocated! want: 0x%02x, cur:0x%02x\n",bit,vv->resources)); -		/* have it already allocated */ -		return 1; -	} - -	/* is it free? */ -	mutex_lock(&dev->lock); -	if (vv->resources & bit) { -		DEB_D(("locked! vv->resources:0x%02x, we want:0x%02x\n",vv->resources,bit)); -		/* no, someone else uses it */ -		mutex_unlock(&dev->lock); -		return 0; -	} -	/* it's free, grab it */ -	fh->resources  |= bit; -	vv->resources |= bit; -	DEB_D(("res: get 0x%02x, cur:0x%02x\n",bit,vv->resources)); -	mutex_unlock(&dev->lock); -	return 1; -} - -void saa7146_res_free(struct saa7146_fh *fh, unsigned int bits) -{ -	struct saa7146_dev *dev = fh->dev; -	struct saa7146_vv *vv = dev->vv_data; - -	BUG_ON((fh->resources & bits) != bits); - -	mutex_lock(&dev->lock); -	fh->resources  &= ~bits; -	vv->resources &= ~bits; -	DEB_D(("res: put 0x%02x, cur:0x%02x\n",bits,vv->resources)); -	mutex_unlock(&dev->lock); -} - - -/********************************************************************************/ -/* common dma functions */ - -void saa7146_dma_free(struct saa7146_dev *dev,struct videobuf_queue *q, -						struct saa7146_buf *buf) -{ -	struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb); -	DEB_EE(("dev:%p, buf:%p\n",dev,buf)); - -	BUG_ON(in_interrupt()); - -	videobuf_waiton(q, &buf->vb, 0, 0); -	videobuf_dma_unmap(q->dev, dma); -	videobuf_dma_free(dma); -	buf->vb.state = VIDEOBUF_NEEDS_INIT; -} - - -/********************************************************************************/ -/* common buffer functions */ - -int saa7146_buffer_queue(struct saa7146_dev *dev, -			 struct saa7146_dmaqueue *q, -			 struct saa7146_buf *buf) -{ -	assert_spin_locked(&dev->slock); -	DEB_EE(("dev:%p, dmaq:%p, buf:%p\n", dev, q, buf)); - -	BUG_ON(!q); - -	if (NULL == q->curr) { -		q->curr = buf; -		DEB_D(("immediately activating buffer %p\n", buf)); -		buf->activate(dev,buf,NULL); -	} else { -		list_add_tail(&buf->vb.queue,&q->queue); -		buf->vb.state = VIDEOBUF_QUEUED; -		DEB_D(("adding buffer %p to queue. (active buffer present)\n", buf)); -	} -	return 0; -} - -void saa7146_buffer_finish(struct saa7146_dev *dev, -			   struct saa7146_dmaqueue *q, -			   int state) -{ -	assert_spin_locked(&dev->slock); -	DEB_EE(("dev:%p, dmaq:%p, state:%d\n", dev, q, state)); -	DEB_EE(("q->curr:%p\n",q->curr)); - -	BUG_ON(!q->curr); - -	/* finish current buffer */ -	if (NULL == q->curr) { -		DEB_D(("aiii. no current buffer\n")); -		return; -	} - -	q->curr->vb.state = state; -	do_gettimeofday(&q->curr->vb.ts); -	wake_up(&q->curr->vb.done); - -	q->curr = NULL; -} - -void saa7146_buffer_next(struct saa7146_dev *dev, -			 struct saa7146_dmaqueue *q, int vbi) -{ -	struct saa7146_buf *buf,*next = NULL; - -	BUG_ON(!q); - -	DEB_INT(("dev:%p, dmaq:%p, vbi:%d\n", dev, q, vbi)); - -	assert_spin_locked(&dev->slock); -	if (!list_empty(&q->queue)) { -		/* activate next one from queue */ -		buf = list_entry(q->queue.next,struct saa7146_buf,vb.queue); -		list_del(&buf->vb.queue); -		if (!list_empty(&q->queue)) -			next = list_entry(q->queue.next,struct saa7146_buf, vb.queue); -		q->curr = buf; -		DEB_INT(("next buffer: buf:%p, prev:%p, next:%p\n", buf, q->queue.prev,q->queue.next)); -		buf->activate(dev,buf,next); -	} else { -		DEB_INT(("no next buffer. stopping.\n")); -		if( 0 != vbi ) { -			/* turn off video-dma3 */ -			saa7146_write(dev,MC1, MASK_20); -		} else { -			/* nothing to do -- just prevent next video-dma1 transfer -			   by lowering the protection address */ - -			// fixme: fix this for vflip != 0 - -			saa7146_write(dev, PROT_ADDR1, 0); -			saa7146_write(dev, MC2, (MASK_02|MASK_18)); - -			/* write the address of the rps-program */ -			saa7146_write(dev, RPS_ADDR0, dev->d_rps0.dma_handle); -			/* turn on rps */ -			saa7146_write(dev, MC1, (MASK_12 | MASK_28)); - -/* -			printk("vdma%d.base_even:     0x%08x\n", 1,saa7146_read(dev,BASE_EVEN1)); -			printk("vdma%d.base_odd:      0x%08x\n", 1,saa7146_read(dev,BASE_ODD1)); -			printk("vdma%d.prot_addr:     0x%08x\n", 1,saa7146_read(dev,PROT_ADDR1)); -			printk("vdma%d.base_page:     0x%08x\n", 1,saa7146_read(dev,BASE_PAGE1)); -			printk("vdma%d.pitch:         0x%08x\n", 1,saa7146_read(dev,PITCH1)); -			printk("vdma%d.num_line_byte: 0x%08x\n", 1,saa7146_read(dev,NUM_LINE_BYTE1)); -*/ -		} -		del_timer(&q->timeout); -	} -} - -void saa7146_buffer_timeout(unsigned long data) -{ -	struct saa7146_dmaqueue *q = (struct saa7146_dmaqueue*)data; -	struct saa7146_dev *dev = q->dev; -	unsigned long flags; - -	DEB_EE(("dev:%p, dmaq:%p\n", dev, q)); - -	spin_lock_irqsave(&dev->slock,flags); -	if (q->curr) { -		DEB_D(("timeout on %p\n", q->curr)); -		saa7146_buffer_finish(dev,q,VIDEOBUF_ERROR); -	} - -	/* we don't restart the transfer here like other drivers do. when -	   a streaming capture is disabled, the timeout function will be -	   called for the current buffer. if we activate the next buffer now, -	   we mess up our capture logic. if a timeout occurs on another buffer, -	   then something is seriously broken before, so no need to buffer the -	   next capture IMHO... */ -/* -	saa7146_buffer_next(dev,q); -*/ -	spin_unlock_irqrestore(&dev->slock,flags); -} - -/********************************************************************************/ -/* file operations */ - -static int fops_open(struct file *file) -{ -	struct video_device *vdev = video_devdata(file); -	struct saa7146_dev *dev = video_drvdata(file); -	struct saa7146_fh *fh = NULL; -	int result = 0; - -	enum v4l2_buf_type type; - -	DEB_EE(("file:%p, dev:%s\n", file, video_device_node_name(vdev))); - -	if (mutex_lock_interruptible(&saa7146_devices_lock)) -		return -ERESTARTSYS; - -	DEB_D(("using: %p\n",dev)); - -	type = vdev->vfl_type == VFL_TYPE_GRABBER -	     ? V4L2_BUF_TYPE_VIDEO_CAPTURE -	     : V4L2_BUF_TYPE_VBI_CAPTURE; - -	/* check if an extension is registered */ -	if( NULL == dev->ext ) { -		DEB_S(("no extension registered for this device.\n")); -		result = -ENODEV; -		goto out; -	} - -	/* allocate per open data */ -	fh = kzalloc(sizeof(*fh),GFP_KERNEL); -	if (NULL == fh) { -		DEB_S(("cannot allocate memory for per open data.\n")); -		result = -ENOMEM; -		goto out; -	} - -	file->private_data = fh; -	fh->dev = dev; -	fh->type = type; - -	if( fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { -		DEB_S(("initializing vbi...\n")); -		if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) -			result = saa7146_vbi_uops.open(dev,file); -		if (dev->ext_vv_data->vbi_fops.open) -			dev->ext_vv_data->vbi_fops.open(file); -	} else { -		DEB_S(("initializing video...\n")); -		result = saa7146_video_uops.open(dev,file); -	} - -	if (0 != result) { -		goto out; -	} - -	if( 0 == try_module_get(dev->ext->module)) { -		result = -EINVAL; -		goto out; -	} - -	result = 0; -out: -	if (fh && result != 0) { -		kfree(fh); -		file->private_data = NULL; -	} -	mutex_unlock(&saa7146_devices_lock); -	return result; -} - -static int fops_release(struct file *file) -{ -	struct saa7146_fh  *fh  = file->private_data; -	struct saa7146_dev *dev = fh->dev; - -	DEB_EE(("file:%p\n", file)); - -	if (mutex_lock_interruptible(&saa7146_devices_lock)) -		return -ERESTARTSYS; - -	if( fh->type == V4L2_BUF_TYPE_VBI_CAPTURE) { -		if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) -			saa7146_vbi_uops.release(dev,file); -		if (dev->ext_vv_data->vbi_fops.release) -			dev->ext_vv_data->vbi_fops.release(file); -	} else { -		saa7146_video_uops.release(dev,file); -	} - -	module_put(dev->ext->module); -	file->private_data = NULL; -	kfree(fh); - -	mutex_unlock(&saa7146_devices_lock); - -	return 0; -} - -static int fops_mmap(struct file *file, struct vm_area_struct * vma) -{ -	struct saa7146_fh *fh = file->private_data; -	struct videobuf_queue *q; - -	switch (fh->type) { -	case V4L2_BUF_TYPE_VIDEO_CAPTURE: { -		DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, vma:%p\n",file, vma)); -		q = &fh->video_q; -		break; -		} -	case V4L2_BUF_TYPE_VBI_CAPTURE: { -		DEB_EE(("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, vma:%p\n",file, vma)); -		q = &fh->vbi_q; -		break; -		} -	default: -		BUG(); -		return 0; -	} - -	return videobuf_mmap_mapper(q,vma); -} - -static unsigned int fops_poll(struct file *file, struct poll_table_struct *wait) -{ -	struct saa7146_fh *fh = file->private_data; -	struct videobuf_buffer *buf = NULL; -	struct videobuf_queue *q; - -	DEB_EE(("file:%p, poll:%p\n",file, wait)); - -	if (V4L2_BUF_TYPE_VBI_CAPTURE == fh->type) { -		if( 0 == fh->vbi_q.streaming ) -			return videobuf_poll_stream(file, &fh->vbi_q, wait); -		q = &fh->vbi_q; -	} else { -		DEB_D(("using video queue.\n")); -		q = &fh->video_q; -	} - -	if (!list_empty(&q->stream)) -		buf = list_entry(q->stream.next, struct videobuf_buffer, stream); - -	if (!buf) { -		DEB_D(("buf == NULL!\n")); -		return POLLERR; -	} - -	poll_wait(file, &buf->done, wait); -	if (buf->state == VIDEOBUF_DONE || buf->state == VIDEOBUF_ERROR) { -		DEB_D(("poll succeeded!\n")); -		return POLLIN|POLLRDNORM; -	} - -	DEB_D(("nothing to poll for, buf->state:%d\n",buf->state)); -	return 0; -} - -static ssize_t fops_read(struct file *file, char __user *data, size_t count, loff_t *ppos) -{ -	struct saa7146_fh *fh = file->private_data; - -	switch (fh->type) { -	case V4L2_BUF_TYPE_VIDEO_CAPTURE: { -//		DEB_EE(("V4L2_BUF_TYPE_VIDEO_CAPTURE: file:%p, data:%p, count:%lun", file, data, (unsigned long)count)); -		return saa7146_video_uops.read(file,data,count,ppos); -		} -	case V4L2_BUF_TYPE_VBI_CAPTURE: { -//		DEB_EE(("V4L2_BUF_TYPE_VBI_CAPTURE: file:%p, data:%p, count:%lu\n", file, data, (unsigned long)count)); -		if (fh->dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) -			return saa7146_vbi_uops.read(file,data,count,ppos); -		else -			return -EINVAL; -		} -		break; -	default: -		BUG(); -		return 0; -	} -} - -static ssize_t fops_write(struct file *file, const char __user *data, size_t count, loff_t *ppos) -{ -	struct saa7146_fh *fh = file->private_data; - -	switch (fh->type) { -	case V4L2_BUF_TYPE_VIDEO_CAPTURE: -		return -EINVAL; -	case V4L2_BUF_TYPE_VBI_CAPTURE: -		if (fh->dev->ext_vv_data->vbi_fops.write) -			return fh->dev->ext_vv_data->vbi_fops.write(file, data, count, ppos); -		else -			return -EINVAL; -	default: -		BUG(); -		return -EINVAL; -	} -} - -static const struct v4l2_file_operations video_fops = -{ -	.owner		= THIS_MODULE, -	.open		= fops_open, -	.release	= fops_release, -	.read		= fops_read, -	.write		= fops_write, -	.poll		= fops_poll, -	.mmap		= fops_mmap, -	.ioctl		= video_ioctl2, -}; - -static void vv_callback(struct saa7146_dev *dev, unsigned long status) -{ -	u32 isr = status; - -	DEB_INT(("dev:%p, isr:0x%08x\n",dev,(u32)status)); - -	if (0 != (isr & (MASK_27))) { -		DEB_INT(("irq: RPS0 (0x%08x).\n",isr)); -		saa7146_video_uops.irq_done(dev,isr); -	} - -	if (0 != (isr & (MASK_28))) { -		u32 mc2 = saa7146_read(dev, MC2); -		if( 0 != (mc2 & MASK_15)) { -			DEB_INT(("irq: RPS1 vbi workaround (0x%08x).\n",isr)); -			wake_up(&dev->vv_data->vbi_wq); -			saa7146_write(dev,MC2, MASK_31); -			return; -		} -		DEB_INT(("irq: RPS1 (0x%08x).\n",isr)); -		saa7146_vbi_uops.irq_done(dev,isr); -	} -} - -int saa7146_vv_init(struct saa7146_dev* dev, struct saa7146_ext_vv *ext_vv) -{ -	struct saa7146_vv *vv; -	int err; - -	err = v4l2_device_register(&dev->pci->dev, &dev->v4l2_dev); -	if (err) -		return err; - -	vv = kzalloc(sizeof(struct saa7146_vv), GFP_KERNEL); -	if (vv == NULL) { -		ERR(("out of memory. aborting.\n")); -		return -ENOMEM; -	} -	ext_vv->ops = saa7146_video_ioctl_ops; -	ext_vv->core_ops = &saa7146_video_ioctl_ops; - -	DEB_EE(("dev:%p\n",dev)); - -	/* set default values for video parts of the saa7146 */ -	saa7146_write(dev, BCS_CTRL, 0x80400040); - -	/* enable video-port pins */ -	saa7146_write(dev, MC1, (MASK_10 | MASK_26)); - -	/* save per-device extension data (one extension can -	   handle different devices that might need different -	   configuration data) */ -	dev->ext_vv_data = ext_vv; - -	vv->d_clipping.cpu_addr = pci_alloc_consistent(dev->pci, SAA7146_CLIPPING_MEM, &vv->d_clipping.dma_handle); -	if( NULL == vv->d_clipping.cpu_addr ) { -		ERR(("out of memory. aborting.\n")); -		kfree(vv); -		return -1; -	} -	memset(vv->d_clipping.cpu_addr, 0x0, SAA7146_CLIPPING_MEM); - -	saa7146_video_uops.init(dev,vv); -	if (dev->ext_vv_data->capabilities & V4L2_CAP_VBI_CAPTURE) -		saa7146_vbi_uops.init(dev,vv); - -	dev->vv_data = vv; -	dev->vv_callback = &vv_callback; - -	return 0; -} -EXPORT_SYMBOL_GPL(saa7146_vv_init); - -int saa7146_vv_release(struct saa7146_dev* dev) -{ -	struct saa7146_vv *vv = dev->vv_data; - -	DEB_EE(("dev:%p\n",dev)); - -	v4l2_device_unregister(&dev->v4l2_dev); -	pci_free_consistent(dev->pci, SAA7146_CLIPPING_MEM, vv->d_clipping.cpu_addr, vv->d_clipping.dma_handle); -	kfree(vv); -	dev->vv_data = NULL; -	dev->vv_callback = NULL; - -	return 0; -} -EXPORT_SYMBOL_GPL(saa7146_vv_release); - -int saa7146_register_device(struct video_device **vid, struct saa7146_dev* dev, -			    char *name, int type) -{ -	struct video_device *vfd; -	int err; -	int i; - -	DEB_EE(("dev:%p, name:'%s', type:%d\n",dev,name,type)); - -	// released by vfd->release -	vfd = video_device_alloc(); -	if (vfd == NULL) -		return -ENOMEM; - -	vfd->fops = &video_fops; -	vfd->ioctl_ops = &dev->ext_vv_data->ops; -	vfd->release = video_device_release; -	vfd->tvnorms = 0; -	for (i = 0; i < dev->ext_vv_data->num_stds; i++) -		vfd->tvnorms |= dev->ext_vv_data->stds[i].id; -	strlcpy(vfd->name, name, sizeof(vfd->name)); -	video_set_drvdata(vfd, dev); - -	err = video_register_device(vfd, type, -1); -	if (err < 0) { -		ERR(("cannot register v4l2 device. skipping.\n")); -		video_device_release(vfd); -		return err; -	} - -	INFO(("%s: registered device %s [v4l2]\n", -		dev->name, video_device_node_name(vfd))); - -	*vid = vfd; -	return 0; -} -EXPORT_SYMBOL_GPL(saa7146_register_device); - -int saa7146_unregister_device(struct video_device **vid, struct saa7146_dev* dev) -{ -	DEB_EE(("dev:%p\n",dev)); - -	video_unregister_device(*vid); -	*vid = NULL; - -	return 0; -} -EXPORT_SYMBOL_GPL(saa7146_unregister_device); - -static int __init saa7146_vv_init_module(void) -{ -	return 0; -} - - -static void __exit saa7146_vv_cleanup_module(void) -{ -} - -module_init(saa7146_vv_init_module); -module_exit(saa7146_vv_cleanup_module); - -MODULE_AUTHOR("Michael Hunold <michael@mihu.de>"); -MODULE_DESCRIPTION("video4linux driver for saa7146-based hardware"); -MODULE_LICENSE("GPL");  | 
