1 files changed, 0 insertions, 739 deletions

diff --git a/drivers/media/video/videobuf-dma-sg.c b/drivers/media/video/videobuf-dma-sg.c
deleted file mode 100644
index da1790e57a8..00000000000
--- a/drivers/media/video/videobuf-dma-sg.c
+++ /dev/null
@@ -1,739 +0,0 @@
-/*
- * helper functions for SG DMA video4linux capture buffers
- *
- * The functions expect the hardware being able to scatter gather
- * (i.e. the buffers are not linear in physical memory, but fragmented
- * into PAGE_SIZE chunks).  They also assume the driver does not need
- * to touch the video data.
- *
- * (c) 2007 Mauro Carvalho Chehab, <mchehab@infradead.org>
- *
- * Highly based on video-buf written originally by:
- * (c) 2001,02 Gerd Knorr <kraxel@bytesex.org>
- * (c) 2006 Mauro Carvalho Chehab, <mchehab@infradead.org>
- * (c) 2006 Ted Walther and John Sokol
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2
- */
-
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-
-#include <linux/dma-mapping.h>
-#include <linux/vmalloc.h>
-#include <linux/pagemap.h>
-#include <linux/scatterlist.h>
-#include <asm/page.h>
-#include <asm/pgtable.h>
-
-#include <media/videobuf-dma-sg.h>
-
-#define MAGIC_DMABUF 0x19721112
-#define MAGIC_SG_MEM 0x17890714
-
-#define MAGIC_CHECK(is,should)	if (unlikely((is) != (should))) \
-	{ printk(KERN_ERR "magic mismatch: %x (expected %x)\n",is,should); BUG(); }
-
-static int debug;
-module_param(debug, int, 0644);
-
-MODULE_DESCRIPTION("helper module to manage video4linux dma sg buffers");
-MODULE_AUTHOR("Mauro Carvalho Chehab <mchehab@infradead.org>");
-MODULE_LICENSE("GPL");
-
-#define dprintk(level, fmt, arg...)	if (debug >= level) \
-	printk(KERN_DEBUG "vbuf-sg: " fmt , ## arg)
-
-/* --------------------------------------------------------------------- */
-
-struct scatterlist*
-videobuf_vmalloc_to_sg(unsigned char *virt, int nr_pages)
-{
-	struct scatterlist *sglist;
-	struct page *pg;
-	int i;
-
-	sglist = kcalloc(nr_pages, sizeof(struct scatterlist), GFP_KERNEL);
-	if (NULL == sglist)
-		return NULL;
-	sg_init_table(sglist, nr_pages);
-	for (i = 0; i < nr_pages; i++, virt += PAGE_SIZE) {
-		pg = vmalloc_to_page(virt);
-		if (NULL == pg)
-			goto err;
-		BUG_ON(PageHighMem(pg));
-		sg_set_page(&sglist[i], pg, PAGE_SIZE, 0);
-	}
-	return sglist;
-
- err:
-	kfree(sglist);
-	return NULL;
-}
-
-struct scatterlist*
-videobuf_pages_to_sg(struct page **pages, int nr_pages, int offset)
-{
-	struct scatterlist *sglist;
-	int i;
-
-	if (NULL == pages[0])
-		return NULL;
-	sglist = kmalloc(nr_pages * sizeof(*sglist), GFP_KERNEL);
-	if (NULL == sglist)
-		return NULL;
-	sg_init_table(sglist, nr_pages);
-
-	if (PageHighMem(pages[0]))
-		/* DMA to highmem pages might not work */
-		goto highmem;
-	sg_set_page(&sglist[0], pages[0], PAGE_SIZE - offset, offset);
-	for (i = 1; i < nr_pages; i++) {
-		if (NULL == pages[i])
-			goto nopage;
-		if (PageHighMem(pages[i]))
-			goto highmem;
-		sg_set_page(&sglist[i], pages[i], PAGE_SIZE, 0);
-	}
-	return sglist;
-
- nopage:
-	dprintk(2,"sgl: oops - no page\n");
-	kfree(sglist);
-	return NULL;
-
- highmem:
-	dprintk(2,"sgl: oops - highmem page\n");
-	kfree(sglist);
-	return NULL;
-}
-
-/* --------------------------------------------------------------------- */
-
-struct videobuf_dmabuf *videobuf_to_dma (struct videobuf_buffer *buf)
-{
-	struct videobuf_dma_sg_memory *mem = buf->priv;
-	BUG_ON(!mem);
-
-	MAGIC_CHECK(mem->magic, MAGIC_SG_MEM);
-
-	return &mem->dma;
-}
-
-void videobuf_dma_init(struct videobuf_dmabuf *dma)
-{
-	memset(dma,0,sizeof(*dma));
-	dma->magic = MAGIC_DMABUF;
-}
-
-static int videobuf_dma_init_user_locked(struct videobuf_dmabuf *dma,
-			int direction, unsigned long data, unsigned long size)
-{
-	unsigned long first,last;
-	int err, rw = 0;
-
-	dma->direction = direction;
-	switch (dma->direction) {
-	case DMA_FROM_DEVICE:
-		rw = READ;
-		break;
-	case DMA_TO_DEVICE:
-		rw = WRITE;
-		break;
-	default:
-		BUG();
-	}
-
-	first = (data          & PAGE_MASK) >> PAGE_SHIFT;
-	last  = ((data+size-1) & PAGE_MASK) >> PAGE_SHIFT;
-	dma->offset   = data & ~PAGE_MASK;
-	dma->nr_pages = last-first+1;
-	dma->pages = kmalloc(dma->nr_pages * sizeof(struct page*),
-			     GFP_KERNEL);
-	if (NULL == dma->pages)
-		return -ENOMEM;
-	dprintk(1,"init user [0x%lx+0x%lx => %d pages]\n",
-		data,size,dma->nr_pages);
-
-	err = get_user_pages(current,current->mm,
-			     data & PAGE_MASK, dma->nr_pages,
-			     rw == READ, 1, /* force */
-			     dma->pages, NULL);
-
-	if (err != dma->nr_pages) {
-		dma->nr_pages = (err >= 0) ? err : 0;
-		dprintk(1,"get_user_pages: err=%d [%d]\n",err,dma->nr_pages);
-		return err < 0 ? err : -EINVAL;
-	}
-	return 0;
-}
-
-int videobuf_dma_init_user(struct videobuf_dmabuf *dma, int direction,
-			   unsigned long data, unsigned long size)
-{
-	int ret;
-	down_read(&current->mm->mmap_sem);
-	ret = videobuf_dma_init_user_locked(dma, direction, data, size);
-	up_read(&current->mm->mmap_sem);
-
-	return ret;
-}
-
-int videobuf_dma_init_kernel(struct videobuf_dmabuf *dma, int direction,
-			     int nr_pages)
-{
-	dprintk(1,"init kernel [%d pages]\n",nr_pages);
-	dma->direction = direction;
-	dma->vmalloc = vmalloc_32(nr_pages << PAGE_SHIFT);
-	if (NULL == dma->vmalloc) {
-		dprintk(1,"vmalloc_32(%d pages) failed\n",nr_pages);
-		return -ENOMEM;
-	}
-	dprintk(1,"vmalloc is at addr 0x%08lx, size=%d\n",
-				(unsigned long)dma->vmalloc,
-				nr_pages << PAGE_SHIFT);
-	memset(dma->vmalloc,0,nr_pages << PAGE_SHIFT);
-	dma->nr_pages = nr_pages;
-	return 0;
-}
-
-int videobuf_dma_init_overlay(struct videobuf_dmabuf *dma, int direction,
-			      dma_addr_t addr, int nr_pages)
-{
-	dprintk(1,"init overlay [%d pages @ bus 0x%lx]\n",
-		nr_pages,(unsigned long)addr);
-	dma->direction = direction;
-	if (0 == addr)
-		return -EINVAL;
-
-	dma->bus_addr = addr;
-	dma->nr_pages = nr_pages;
-	return 0;
-}
-
-int videobuf_dma_map(struct videobuf_queue* q, struct videobuf_dmabuf *dma)
-{
-	MAGIC_CHECK(dma->magic,MAGIC_DMABUF);
-	BUG_ON(0 == dma->nr_pages);
-
-	if (dma->pages) {
-		dma->sglist = videobuf_pages_to_sg(dma->pages, dma->nr_pages,
-						   dma->offset);
-	}
-	if (dma->vmalloc) {
-		dma->sglist = videobuf_vmalloc_to_sg
-						(dma->vmalloc,dma->nr_pages);
-	}
-	if (dma->bus_addr) {
-		dma->sglist = kmalloc(sizeof(struct scatterlist), GFP_KERNEL);
-		if (NULL != dma->sglist) {
-			dma->sglen  = 1;
-			sg_dma_address(&dma->sglist[0]) = dma->bus_addr & PAGE_MASK;
-			dma->sglist[0].offset           = dma->bus_addr & ~PAGE_MASK;
-			sg_dma_len(&dma->sglist[0])     = dma->nr_pages * PAGE_SIZE;
-		}
-	}
-	if (NULL == dma->sglist) {
-		dprintk(1,"scatterlist is NULL\n");
-		return -ENOMEM;
-	}
-	if (!dma->bus_addr) {
-		dma->sglen = dma_map_sg(q->dev, dma->sglist,
-					dma->nr_pages, dma->direction);
-		if (0 == dma->sglen) {
-			printk(KERN_WARNING
-			       "%s: videobuf_map_sg failed\n",__func__);
-			kfree(dma->sglist);
-			dma->sglist = NULL;
-			dma->sglen = 0;
-			return -EIO;
-		}
-	}
-	return 0;
-}
-
-int videobuf_dma_sync(struct videobuf_queue *q, struct videobuf_dmabuf *dma)
-{
-	MAGIC_CHECK(dma->magic, MAGIC_DMABUF);
-	BUG_ON(!dma->sglen);
-
-	dma_sync_sg_for_cpu(q->dev, dma->sglist, dma->nr_pages, dma->direction);
-	return 0;
-}
-
-int videobuf_dma_unmap(struct videobuf_queue* q,struct videobuf_dmabuf *dma)
-{
-	MAGIC_CHECK(dma->magic, MAGIC_DMABUF);
-	if (!dma->sglen)
-		return 0;
-
-	dma_unmap_sg(q->dev, dma->sglist, dma->nr_pages, dma->direction);
-
-	kfree(dma->sglist);
-	dma->sglist = NULL;
-	dma->sglen = 0;
-	return 0;
-}
-
-int videobuf_dma_free(struct videobuf_dmabuf *dma)
-{
-	MAGIC_CHECK(dma->magic,MAGIC_DMABUF);
-	BUG_ON(dma->sglen);
-
-	if (dma->pages) {
-		int i;
-		for (i=0; i < dma->nr_pages; i++)
-			page_cache_release(dma->pages[i]);
-		kfree(dma->pages);
-		dma->pages = NULL;
-	}
-
-	vfree(dma->vmalloc);
-	dma->vmalloc = NULL;
-
-	if (dma->bus_addr) {
-		dma->bus_addr = 0;
-	}
-	dma->direction = DMA_NONE;
-	return 0;
-}
-
-/* --------------------------------------------------------------------- */
-
-int videobuf_sg_dma_map(struct device *dev, struct videobuf_dmabuf *dma)
-{
-	struct videobuf_queue q;
-
-	q.dev = dev;
-
-	return videobuf_dma_map(&q, dma);
-}
-
-int videobuf_sg_dma_unmap(struct device *dev, struct videobuf_dmabuf *dma)
-{
-	struct videobuf_queue q;
-
-	q.dev = dev;
-
-	return videobuf_dma_unmap(&q, dma);
-}
-
-/* --------------------------------------------------------------------- */
-
-static void
-videobuf_vm_open(struct vm_area_struct *vma)
-{
-	struct videobuf_mapping *map = vma->vm_private_data;
-
-	dprintk(2,"vm_open %p [count=%d,vma=%08lx-%08lx]\n",map,
-		map->count,vma->vm_start,vma->vm_end);
-	map->count++;
-}
-
-static void
-videobuf_vm_close(struct vm_area_struct *vma)
-{
-	struct videobuf_mapping *map = vma->vm_private_data;
-	struct videobuf_queue *q = map->q;
-	struct videobuf_dma_sg_memory *mem;
-	int i;
-
-	dprintk(2,"vm_close %p [count=%d,vma=%08lx-%08lx]\n",map,
-		map->count,vma->vm_start,vma->vm_end);
-
-	map->count--;
-	if (0 == map->count) {
-		dprintk(1,"munmap %p q=%p\n",map,q);
-		mutex_lock(&q->vb_lock);
-		for (i = 0; i < VIDEO_MAX_FRAME; i++) {
-			if (NULL == q->bufs[i])
-				continue;
-			mem=q->bufs[i]->priv;
-
-			if (!mem)
-				continue;
-
-			MAGIC_CHECK(mem->magic,MAGIC_SG_MEM);
-
-			if (q->bufs[i]->map != map)
-				continue;
-			q->bufs[i]->map   = NULL;
-			q->bufs[i]->baddr = 0;
-			q->ops->buf_release(q,q->bufs[i]);
-		}
-		mutex_unlock(&q->vb_lock);
-		kfree(map);
-	}
-	return;
-}
-
-/*
- * Get a anonymous page for the mapping.  Make sure we can DMA to that
- * memory location with 32bit PCI devices (i.e. don't use highmem for
- * now ...).  Bounce buffers don't work very well for the data rates
- * video capture has.
- */
-static int
-videobuf_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
-{
-	struct page *page;
-
-	dprintk(3,"fault: fault @ %08lx [vma %08lx-%08lx]\n",
-		(unsigned long)vmf->virtual_address,vma->vm_start,vma->vm_end);
-	page = alloc_page(GFP_USER | __GFP_DMA32);
-	if (!page)
-		return VM_FAULT_OOM;
-	clear_user_highpage(page, (unsigned long)vmf->virtual_address);
-	vmf->page = page;
-	return 0;
-}
-
-static struct vm_operations_struct videobuf_vm_ops =
-{
-	.open     = videobuf_vm_open,
-	.close    = videobuf_vm_close,
-	.fault    = videobuf_vm_fault,
-};
-
-/* ---------------------------------------------------------------------
- * SG handlers for the generic methods
- */
-
-/* Allocated area consists on 3 parts:
-	struct video_buffer
-	struct <driver>_buffer (cx88_buffer, saa7134_buf, ...)
-	struct videobuf_dma_sg_memory
- */
-
-static void *__videobuf_alloc(size_t size)
-{
-	struct videobuf_dma_sg_memory *mem;
-	struct videobuf_buffer *vb;
-
-	vb = kzalloc(size+sizeof(*mem),GFP_KERNEL);
-
-	mem = vb->priv = ((char *)vb)+size;
-	mem->magic=MAGIC_SG_MEM;
-
-	videobuf_dma_init(&mem->dma);
-
-	dprintk(1,"%s: allocated at %p(%ld+%ld) & %p(%ld)\n",
-		__func__,vb,(long)sizeof(*vb),(long)size-sizeof(*vb),
-		mem,(long)sizeof(*mem));
-
-	return vb;
-}
-
-static void *__videobuf_to_vmalloc (struct videobuf_buffer *buf)
-{
-	struct videobuf_dma_sg_memory *mem = buf->priv;
-	BUG_ON(!mem);
-
-	MAGIC_CHECK(mem->magic, MAGIC_SG_MEM);
-
-	return mem->dma.vmalloc;
-}
-
-static int __videobuf_iolock (struct videobuf_queue* q,
-			      struct videobuf_buffer *vb,
-			      struct v4l2_framebuffer *fbuf)
-{
-	int err,pages;
-	dma_addr_t bus;
-	struct videobuf_dma_sg_memory *mem = vb->priv;
-	BUG_ON(!mem);
-
-	MAGIC_CHECK(mem->magic, MAGIC_SG_MEM);
-
-	switch (vb->memory) {
-	case V4L2_MEMORY_MMAP:
-	case V4L2_MEMORY_USERPTR:
-		if (0 == vb->baddr) {
-			/* no userspace addr -- kernel bounce buffer */
-			pages = PAGE_ALIGN(vb->size) >> PAGE_SHIFT;
-			err = videobuf_dma_init_kernel( &mem->dma,
-							DMA_FROM_DEVICE,
-							pages );
-			if (0 != err)
-				return err;
-		} else if (vb->memory == V4L2_MEMORY_USERPTR) {
-			/* dma directly to userspace */
-			err = videobuf_dma_init_user( &mem->dma,
-						      DMA_FROM_DEVICE,
-						      vb->baddr,vb->bsize );
-			if (0 != err)
-				return err;
-		} else {
-			/* NOTE: HACK: videobuf_iolock on V4L2_MEMORY_MMAP
-			buffers can only be called from videobuf_qbuf
-			we take current->mm->mmap_sem there, to prevent
-			locking inversion, so don't take it here */
-
-			err = videobuf_dma_init_user_locked(&mem->dma,
-						      DMA_FROM_DEVICE,
-						      vb->baddr, vb->bsize);
-			if (0 != err)
-				return err;
-		}
-		break;
-	case V4L2_MEMORY_OVERLAY:
-		if (NULL == fbuf)
-			return -EINVAL;
-		/* FIXME: need sanity checks for vb->boff */
-		/*
-		 * Using a double cast to avoid compiler warnings when
-		 * building for PAE. Compiler doesn't like direct casting
-		 * of a 32 bit ptr to 64 bit integer.
-		 */
-		bus   = (dma_addr_t)(unsigned long)fbuf->base + vb->boff;
-		pages = PAGE_ALIGN(vb->size) >> PAGE_SHIFT;
-		err = videobuf_dma_init_overlay(&mem->dma, DMA_FROM_DEVICE,
-						bus, pages);
-		if (0 != err)
-			return err;
-		break;
-	default:
-		BUG();
-	}
-	err = videobuf_dma_map(q, &mem->dma);
-	if (0 != err)
-		return err;
-
-	return 0;
-}
-
-static int __videobuf_sync(struct videobuf_queue *q,
-			   struct videobuf_buffer *buf)
-{
-	struct videobuf_dma_sg_memory *mem = buf->priv;
-	BUG_ON(!mem);
-	MAGIC_CHECK(mem->magic,MAGIC_SG_MEM);
-
-	return	videobuf_dma_sync(q,&mem->dma);
-}
-
-static int __videobuf_mmap_free(struct videobuf_queue *q)
-{
-	int i;
-
-	for (i = 0; i < VIDEO_MAX_FRAME; i++) {
-		if (q->bufs[i]) {
-			if (q->bufs[i]->map)
-				return -EBUSY;
-		}
-	}
-
-	return 0;
-}
-
-static int __videobuf_mmap_mapper(struct videobuf_queue *q,
-			 struct vm_area_struct *vma)
-{
-	struct videobuf_dma_sg_memory *mem;
-	struct videobuf_mapping *map;
-	unsigned int first,last,size,i;
-	int retval;
-
-	retval = -EINVAL;
-	if (!(vma->vm_flags & VM_WRITE)) {
-		dprintk(1,"mmap app bug: PROT_WRITE please\n");
-		goto done;
-	}
-	if (!(vma->vm_flags & VM_SHARED)) {
-		dprintk(1,"mmap app bug: MAP_SHARED please\n");
-		goto done;
-	}
-
-	/* This function maintains backwards compatibility with V4L1 and will
-	 * map more than one buffer if the vma length is equal to the combined
-	 * size of multiple buffers than it will map them together.  See
-	 * VIDIOCGMBUF in the v4l spec
-	 *
-	 * TODO: Allow drivers to specify if they support this mode
-	 */
-
-	/* look for first buffer to map */
-	for (first = 0; first < VIDEO_MAX_FRAME; first++) {
-		if (NULL == q->bufs[first])
-			continue;
-		mem=q->bufs[first]->priv;
-		BUG_ON(!mem);
-		MAGIC_CHECK(mem->magic,MAGIC_SG_MEM);
-
-		if (V4L2_MEMORY_MMAP != q->bufs[first]->memory)
-			continue;
-		if (q->bufs[first]->boff == (vma->vm_pgoff << PAGE_SHIFT))
-			break;
-	}
-	if (VIDEO_MAX_FRAME == first) {
-		dprintk(1,"mmap app bug: offset invalid [offset=0x%lx]\n",
-			(vma->vm_pgoff << PAGE_SHIFT));
-		goto done;
-	}
-
-	/* look for last buffer to map */
-	for (size = 0, last = first; last < VIDEO_MAX_FRAME; last++) {
-		if (NULL == q->bufs[last])
-			continue;
-		if (V4L2_MEMORY_MMAP != q->bufs[last]->memory)
-			continue;
-		if (q->bufs[last]->map) {
-			retval = -EBUSY;
-			goto done;
-		}
-		size += q->bufs[last]->bsize;
-		if (size == (vma->vm_end - vma->vm_start))
-			break;
-	}
-	if (VIDEO_MAX_FRAME == last) {
-		dprintk(1,"mmap app bug: size invalid [size=0x%lx]\n",
-			(vma->vm_end - vma->vm_start));
-		goto done;
-	}
-
-	/* create mapping + update buffer list */
-	retval = -ENOMEM;
-	map = kmalloc(sizeof(struct videobuf_mapping),GFP_KERNEL);
-	if (NULL == map)
-		goto done;
-
-	size = 0;
-	for (i = first; i <= last; i++) {
-		if (NULL == q->bufs[i])
-			continue;
-		q->bufs[i]->map   = map;
-		q->bufs[i]->baddr = vma->vm_start + size;
-		size += q->bufs[i]->bsize;
-	}
-
-	map->count    = 1;
-	map->start    = vma->vm_start;
-	map->end      = vma->vm_end;
-	map->q        = q;
-	vma->vm_ops   = &videobuf_vm_ops;
-	vma->vm_flags |= VM_DONTEXPAND | VM_RESERVED;
-	vma->vm_flags &= ~VM_IO; /* using shared anonymous pages */
-	vma->vm_private_data = map;
-	dprintk(1,"mmap %p: q=%p %08lx-%08lx pgoff %08lx bufs %d-%d\n",
-		map,q,vma->vm_start,vma->vm_end,vma->vm_pgoff,first,last);
-	retval = 0;
-
- done:
-	return retval;
-}
-
-static int __videobuf_copy_to_user ( struct videobuf_queue *q,
-				char __user *data, size_t count,
-				int nonblocking )
-{
-	struct videobuf_dma_sg_memory *mem = q->read_buf->priv;
-	BUG_ON(!mem);
-	MAGIC_CHECK(mem->magic,MAGIC_SG_MEM);
-
-	/* copy to userspace */
-	if (count > q->read_buf->size - q->read_off)
-		count = q->read_buf->size - q->read_off;
-
-	if (copy_to_user(data, mem->dma.vmalloc+q->read_off, count))
-		return -EFAULT;
-
-	return count;
-}
-
-static int __videobuf_copy_stream ( struct videobuf_queue *q,
-				char __user *data, size_t count, size_t pos,
-				int vbihack, int nonblocking )
-{
-	unsigned int  *fc;
-	struct videobuf_dma_sg_memory *mem = q->read_buf->priv;
-	BUG_ON(!mem);
-	MAGIC_CHECK(mem->magic,MAGIC_SG_MEM);
-
-	if (vbihack) {
-		/* dirty, undocumented hack -- pass the frame counter
-			* within the last four bytes of each vbi data block.
-			* We need that one to maintain backward compatibility
-			* to all vbi decoding software out there ... */
-		fc  = (unsigned int*)mem->dma.vmalloc;
-		fc += (q->read_buf->size>>2) -1;
-		*fc = q->read_buf->field_count >> 1;
-		dprintk(1,"vbihack: %d\n",*fc);
-	}
-
-	/* copy stuff using the common method */
-	count = __videobuf_copy_to_user (q,data,count,nonblocking);
-
-	if ( (count==-EFAULT) && (0 == pos) )
-		return -EFAULT;
-
-	return count;
-}
-
-static struct videobuf_qtype_ops sg_ops = {
-	.magic        = MAGIC_QTYPE_OPS,
-
-	.alloc        = __videobuf_alloc,
-	.iolock       = __videobuf_iolock,
-	.sync         = __videobuf_sync,
-	.mmap_free    = __videobuf_mmap_free,
-	.mmap_mapper  = __videobuf_mmap_mapper,
-	.video_copy_to_user = __videobuf_copy_to_user,
-	.copy_stream  = __videobuf_copy_stream,
-	.vmalloc      = __videobuf_to_vmalloc,
-};
-
-void *videobuf_sg_alloc(size_t size)
-{
-	struct videobuf_queue q;
-
-	/* Required to make generic handler to call __videobuf_alloc */
-	q.int_ops = &sg_ops;
-
-	q.msize = size;
-
-	return videobuf_alloc(&q);
-}
-
-void videobuf_queue_sg_init(struct videobuf_queue* q,
-			 struct videobuf_queue_ops *ops,
-			 struct device *dev,
-			 spinlock_t *irqlock,
-			 enum v4l2_buf_type type,
-			 enum v4l2_field field,
-			 unsigned int msize,
-			 void *priv)
-{
-	videobuf_queue_core_init(q, ops, dev, irqlock, type, field, msize,
-				 priv, &sg_ops);
-}
-
-/* --------------------------------------------------------------------- */
-
-EXPORT_SYMBOL_GPL(videobuf_vmalloc_to_sg);
-
-EXPORT_SYMBOL_GPL(videobuf_to_dma);
-EXPORT_SYMBOL_GPL(videobuf_dma_init);
-EXPORT_SYMBOL_GPL(videobuf_dma_init_user);
-EXPORT_SYMBOL_GPL(videobuf_dma_init_kernel);
-EXPORT_SYMBOL_GPL(videobuf_dma_init_overlay);
-EXPORT_SYMBOL_GPL(videobuf_dma_map);
-EXPORT_SYMBOL_GPL(videobuf_dma_sync);
-EXPORT_SYMBOL_GPL(videobuf_dma_unmap);
-EXPORT_SYMBOL_GPL(videobuf_dma_free);
-
-EXPORT_SYMBOL_GPL(videobuf_sg_dma_map);
-EXPORT_SYMBOL_GPL(videobuf_sg_dma_unmap);
-EXPORT_SYMBOL_GPL(videobuf_sg_alloc);
-
-EXPORT_SYMBOL_GPL(videobuf_queue_sg_init);
-
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */