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V4L/DVB (6253): Convert vivi to use the newer videobuf-dma-sg module

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Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>
This commit is contained in:
Mauro Carvalho Chehab 2007-08-23 16:41:14 -03:00
parent c1accaa21b
commit 6bb2790f8a
1 changed files with 20 additions and 33 deletions
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53
drivers/media/video/vivi.c
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@ -33,7 +33,7 @@
#include <linux/videodev.h>
#endif
#include <linux/interrupt.h>
#include <media/video-buf.h>
#include <media/videobuf-dma-sg.h>
#include <media/v4l2-common.h>
#include <linux/kthread.h>
#include <linux/highmem.h>
@ -327,19 +327,21 @@ static void vivi_fillbuff(struct vivi_dev *dev,struct vivi_buffer *buf)
int wmax = buf->vb.width;
struct timeval ts;
char *tmpbuf;
struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
if (buf->vb.dma.varea) {
if (dma->varea) {
tmpbuf=kmalloc (wmax*2, GFP_KERNEL);
} else {
tmpbuf=buf->vb.dma.vmalloc;
tmpbuf=dma->vmalloc;
}
for (h=0;h<hmax;h++) {
if (buf->vb.dma.varea) {
if (dma->varea) {
gen_line(tmpbuf,0,wmax,hmax,h,dev->timestr);
/* FIXME: replacing to __copy_to_user */
if (copy_to_user(buf->vb.dma.varea+pos,tmpbuf,wmax*2)!=0)
if (copy_to_user(dma->varea+pos,tmpbuf,wmax*2)!=0)
dprintk(2,"vivifill copy_to_user failed.\n");
} else {
gen_line(tmpbuf,pos,wmax,hmax,h,dev->timestr);
@ -369,7 +371,7 @@ static void vivi_fillbuff(struct vivi_dev *dev,struct vivi_buffer *buf)
dev->h,dev->m,dev->s,(dev->us+500)/1000);
dprintk(2,"vivifill at %s: Buffer 0x%08lx size= %d\n",dev->timestr,
(unsigned long)buf->vb.dma.varea,pos);
(unsigned long)dma->varea,pos);
/* Advice that buffer was filled */
buf->vb.state = STATE_DONE;
@ -597,13 +599,19 @@ buffer_setup(struct videobuf_queue *vq, unsigned int *count, unsigned int *size)
if (0 == *count)
*count = 32;
while (*size * *count > vid_limit * 1024 * 1024)
(*count)--;
dprintk(1,"%s, count=%d, size=%d\n",__FUNCTION__,*count, *size);
return 0;
}
static void free_buffer(struct videobuf_queue *vq, struct vivi_buffer *buf)
{
struct videobuf_dmabuf *dma=videobuf_to_dma(&buf->vb);
dprintk(1,"%s\n",__FUNCTION__);
if (in_interrupt())
@ -611,8 +619,8 @@ static void free_buffer(struct videobuf_queue *vq, struct vivi_buffer *buf)
videobuf_waiton(&buf->vb,0,0);
videobuf_dma_unmap(vq, &buf->vb.dma);
videobuf_dma_free(&buf->vb.dma);
videobuf_dma_unmap(vq, dma);
videobuf_dma_free(dma);
buf->vb.state = STATE_NEEDS_INIT;
}
@ -626,7 +634,7 @@ buffer_prepare(struct videobuf_queue *vq, struct videobuf_buffer *vb,
struct vivi_buffer *buf = container_of(vb,struct vivi_buffer,vb);
int rc, init_buffer = 0;
// dprintk(1,"%s, field=%d\n",__FUNCTION__,field);
dprintk(1,"%s, field=%d\n",__FUNCTION__,field);
BUG_ON(NULL == fh->fmt);
if (fh->width < 48 || fh->width > norm_maxw() ||
@ -724,11 +732,6 @@ static struct videobuf_queue_ops vivi_video_qops = {
.buf_prepare = buffer_prepare,
.buf_queue = buffer_queue,
.buf_release = buffer_release,
/* Non-pci handling routines */
// .vb_map_sg = vivi_map_sg,
// .vb_dma_sync_sg = vivi_dma_sync_sg,
// .vb_unmap_sg = vivi_unmap_sg,
};
/* ------------------------------------------------------------------
@ -904,25 +907,8 @@ static int vidioc_dqbuf (struct file *file, void *priv, struct v4l2_buffer *p)
static int vidiocgmbuf (struct file *file, void *priv, struct video_mbuf *mbuf)
{
struct vivi_fh *fh=priv;
struct videobuf_queue *q=&fh->vb_vidq;
struct v4l2_requestbuffers req;
unsigned int i;
int ret;
req.type = q->type;
req.count = 8;
req.memory = V4L2_MEMORY_MMAP;
ret = videobuf_reqbufs(q,&req);
if (ret < 0)
return (ret);
mbuf->frames = req.count;
mbuf->size = 0;
for (i = 0; i < mbuf->frames; i++) {
mbuf->offsets[i] = q->bufs[i]->boff;
mbuf->size += q->bufs[i]->bsize;
}
return (0);
return videobuf_cgmbuf (&fh->vb_vidq, mbuf, 8);
}
#endif
@ -1106,12 +1092,13 @@ static int vivi_open(struct inode *inode, struct file *file)
sprintf(dev->timestr,"%02d:%02d:%02d:%03d",
dev->h,dev->m,dev->s,(dev->us+500)/1000);
videobuf_queue_init(&fh->vb_vidq, &vivi_video_qops,
videobuf_queue_pci_init(&fh->vb_vidq, &vivi_video_qops,
NULL, NULL,
fh->type,
V4L2_FIELD_INTERLACED,
sizeof(struct vivi_buffer),fh);
return 0;
}