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V4L/DVB (6290): remove videobuf_set_pci_ops 

Before the videobuf redesign, a procedure for re-using videobuf without PCI
scatter/gather where provided by changing the pci-dependent operations by
other operations.

With the newer approach, those methods are obsolete and can safelly be removed.

Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Mauro Carvalho Chehab 2007-10-08 11:43:49 -03:00
parent 7568e3ce67
commit 5ddff43435
3 changed files with 4 additions and 80 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

62
drivers/media/video/videobuf-dma-sg.c
View File

@ -220,7 +220,6 @@ int videobuf_dma_init_overlay(struct videobuf_dmabuf *dma, int direction,
int videobuf_dma_map(struct videobuf_queue* q,struct videobuf_dmabuf *dma)
{
void *dev=q->dev;
struct videobuf_dma_sg_ops *ops=q->priv_ops;
MAGIC_CHECK(dma->magic,MAGIC_DMABUF);
BUG_ON(0 == dma->nr_pages);
@ -247,10 +246,8 @@ int videobuf_dma_map(struct videobuf_queue* q,struct videobuf_dmabuf *dma)
return -ENOMEM;
}
if (!dma->bus_addr) {
if (ops && ops->vb_map_sg) {
dma->sglen = ops->vb_map_sg(dev,dma->sglist,
dma->sglen = pci_map_sg(dev,dma->sglist,
dma->nr_pages, dma->direction);
}
if (0 == dma->sglen) {
printk(KERN_WARNING
"%s: videobuf_map_sg failed\n",__FUNCTION__);
@ -266,30 +263,24 @@ int videobuf_dma_map(struct videobuf_queue* q,struct videobuf_dmabuf *dma)
int videobuf_dma_sync(struct videobuf_queue *q,struct videobuf_dmabuf *dma)
{
void *dev=q->dev;
struct videobuf_dma_sg_ops *ops=q->priv_ops;
MAGIC_CHECK(dma->magic,MAGIC_DMABUF);
BUG_ON(!dma->sglen);
if (!dma->bus_addr && ops && ops->vb_dma_sync_sg)
ops->vb_dma_sync_sg(dev,dma->sglist,dma->nr_pages,
dma->direction);
pci_dma_sync_sg_for_cpu (dev,dma->sglist,dma->nr_pages,dma->direction);
return 0;
}
int videobuf_dma_unmap(struct videobuf_queue* q,struct videobuf_dmabuf *dma)
{
void *dev=q->dev;
struct videobuf_dma_sg_ops *ops=q->priv_ops;
MAGIC_CHECK(dma->magic,MAGIC_DMABUF);
if (!dma->sglen)
return 0;
if (!dma->bus_addr && ops && ops->vb_unmap_sg)
ops->vb_unmap_sg(dev,dma->sglist,dma->nr_pages,
dma->direction);
pci_unmap_sg (dev,dma->sglist,dma->nr_pages,dma->direction);
kfree(dma->sglist);
dma->sglist = NULL;
dma->sglen = 0;
@ -325,12 +316,8 @@ int videobuf_dma_free(struct videobuf_dmabuf *dma)
int videobuf_pci_dma_map(struct pci_dev *pci,struct videobuf_dmabuf *dma)
{
struct videobuf_queue q;
struct videobuf_dma_sg_ops qops;
q.dev=pci;
qops.vb_map_sg=(vb_map_sg_t *)pci_map_sg;
qops.vb_unmap_sg=(vb_map_sg_t *)pci_unmap_sg;
q.priv_ops = &qops;
return (videobuf_dma_map(&q,dma));
}
@ -338,12 +325,8 @@ int videobuf_pci_dma_map(struct pci_dev *pci,struct videobuf_dmabuf *dma)
int videobuf_pci_dma_unmap(struct pci_dev *pci,struct videobuf_dmabuf *dma)
{
struct videobuf_queue q;
struct videobuf_dma_sg_ops qops;
q.dev=pci;
qops.vb_map_sg=(vb_map_sg_t *)pci_map_sg;
qops.vb_unmap_sg=(vb_map_sg_t *)pci_unmap_sg;
q.priv_ops = &qops;
return (videobuf_dma_unmap(&q,dma));
}
@ -712,46 +695,10 @@ void videobuf_queue_pci_init(struct videobuf_queue* q,
unsigned int msize,
void *priv)
{
struct videobuf_dma_sg_ops *priv_ops;
videobuf_queue_init(q, ops, dev, irqlock, type, field, msize, priv);
q->int_ops=&pci_ops;
/* FIXME: the code bellow should be removed after having a proper
* memory allocation method for vivi and tm6000
*/
q->priv_ops= kzalloc(sizeof(struct videobuf_dma_sg_ops), GFP_KERNEL);
BUG_ON (!q->priv_ops);
priv_ops=q->priv_ops;
/* Sets default methods for handling Scatter Gather mapping */
priv_ops->vb_map_sg=(vb_map_sg_t *)pci_map_sg;
priv_ops->vb_unmap_sg=(vb_map_sg_t *)pci_unmap_sg;
priv_ops->vb_dma_sync_sg=(vb_map_sg_t *)pci_dma_sync_sg_for_cpu;
}
void videobuf_set_pci_ops (struct videobuf_queue* q,
struct videobuf_dma_sg_ops *ops)
{
kfree (q->priv_ops);
q->priv_ops=ops;
if (!ops)
return;
/* If not specified, defaults to PCI map sg */
if (!ops->vb_map_sg)
ops->vb_map_sg=(vb_map_sg_t *)pci_map_sg;
if (!ops->vb_dma_sync_sg)
ops->vb_dma_sync_sg=(vb_map_sg_t *)pci_dma_sync_sg_for_cpu;
if (!ops->vb_unmap_sg)
ops->vb_unmap_sg=(vb_map_sg_t *)pci_unmap_sg;
}
/* --------------------------------------------------------------------- */
EXPORT_SYMBOL_GPL(videobuf_vmalloc_to_sg);
@ -771,7 +718,6 @@ EXPORT_SYMBOL_GPL(videobuf_pci_dma_unmap);
EXPORT_SYMBOL_GPL(videobuf_pci_alloc);
EXPORT_SYMBOL_GPL(videobuf_queue_pci_init);
EXPORT_SYMBOL_GPL(videobuf_set_pci_ops);
/*
* Local variables:

3
include/media/videobuf-core.h
View File

@ -173,9 +173,6 @@ struct videobuf_queue {
/* driver private data */
void *priv_data;
/*FIXME: should be removed after completing the vb conversion */
void *priv_ops;
};
int videobuf_waiton(struct videobuf_buffer *vb, int non_blocking, int intr);

19
include/media/videobuf-dma-sg.h
View File

@ -89,19 +89,6 @@ struct videbuf_pci_sg_memory
struct videobuf_dmabuf dma;
};
/* FIXME: To be removed soon */
typedef int (vb_map_sg_t)(void *dev, struct scatterlist *sglist, int nr_pages,
int direction);
/* FIXME: To be removed soon */
struct videobuf_dma_sg_ops
{
vb_map_sg_t *vb_map_sg;
vb_map_sg_t *vb_dma_sync_sg;
vb_map_sg_t *vb_unmap_sg;
};
void videobuf_dma_init(struct videobuf_dmabuf *dma);
int videobuf_dma_init_user(struct videobuf_dmabuf *dma, int direction,
unsigned long data, unsigned long size);
@ -133,9 +120,3 @@ void videobuf_queue_pci_init(struct videobuf_queue* q,
int videobuf_pci_dma_map(struct pci_dev *pci,struct videobuf_dmabuf *dma);
int videobuf_pci_dma_unmap(struct pci_dev *pci,struct videobuf_dmabuf *dma);
/* FIXME: temporary routine for vivi and tm6000, while lacking implementation
* of videobuf-vmalloc
*/
void videobuf_set_pci_ops (struct videobuf_queue* q,
struct videobuf_dma_sg_ops *ops);