#define TM6000_MIN_BUF 4
#define TM6000_DEF_BUF 8
-#define TM6000_MAX_ISO_PACKETS 40 /* Max number of ISO packets */
+#define TM6000_MAX_ISO_PACKETS 46 /* Max number of ISO packets */
/* Declare static vars that will be used as parameters */
static unsigned int vid_limit = 16; /* Video memory limit, in Mb */
c = (header >> 24) & 0xff;
/* split the header fields */
- size = (((header & 0x7e) << 1) -1) *4;
+ size = ((header & 0x7e) << 1);
+
+ if (size > 0)
+ size -= 4;
+
block = (header >> 7) & 0xf;
field = (header >> 11) & 0x1;
line = (header >> 12) & 0x1ff;
case TM6000_URB_MSG_PTS:
break;
case TM6000_URB_MSG_AUDIO:
-/* Need some code to process audio */
-printk ("%ld: cmd=%s, size=%d\n", jiffies,
+ /* Need some code to process audio */
+ printk ("%ld: cmd=%s, size=%d\n", jiffies,
tm6000_msg_type[cmd],size);
break;
+ case TM6000_URB_MSG_VBI:
+ break;
default:
dprintk (dev, V4L2_DEBUG_ISOC, "cmd=%s, size=%d\n",
tm6000_msg_type[cmd],size);
return rc;
}
-static int copy_streams(u8 *data, u8 *out_p, unsigned long len,
- struct urb *urb, struct tm6000_buffer **buf)
+static int copy_streams(u8 *data, unsigned long len,
+ struct urb *urb)
{
struct tm6000_dmaqueue *dma_q = urb->context;
struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
u8 *ptr=data, *endp=data+len;
unsigned long header=0;
int rc=0;
+ struct tm6000_buffer *buf;
+ char *outp = NULL;
+
+ get_next_buf(dma_q, &buf);
+ if (buf)
+ outp = videobuf_to_vmalloc(&buf->vb);
+
+ if (!outp)
+ return 0;
for (ptr=data; ptr<endp;) {
if (!dev->isoc_ctl.cmd) {
}
HEADER:
/* Copy or continue last copy */
- rc=copy_packet(urb,header,&ptr,endp,out_p,buf);
+ rc=copy_packet(urb,header,&ptr,endp,outp,&buf);
if (rc<0) {
buf=NULL;
printk(KERN_ERR "tm6000: buffer underrun at %ld\n",
jiffies);
return rc;
}
- if (!*buf)
+ if (!buf)
return 0;
}
/*
* Identify the tm5600/6000 buffer header type and properly handles
*/
-static int copy_multiplexed(u8 *ptr, u8 *out_p, unsigned long len,
- struct urb *urb, struct tm6000_buffer **buf)
+static int copy_multiplexed(u8 *ptr, unsigned long len,
+ struct urb *urb)
{
struct tm6000_dmaqueue *dma_q = urb->context;
struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
unsigned int pos=dev->isoc_ctl.pos,cpysize;
int rc=1;
+ struct tm6000_buffer *buf;
+ char *outp = NULL;
+
+ get_next_buf(dma_q, &buf);
+ if (buf)
+ outp = videobuf_to_vmalloc(&buf->vb);
+
+ if (!outp)
+ return 0;
while (len>0) {
- cpysize=min(len,(*buf)->vb.size-pos);
-//printk("Copying %d bytes (max=%lu) from %p to %p[%u]\n",cpysize,(*buf)->vb.size,ptr,out_p,pos);
- memcpy(&out_p[pos], ptr, cpysize);
+ cpysize=min(len,buf->vb.size-pos);
+ //printk("Copying %d bytes (max=%lu) from %p to %p[%u]\n",cpysize,(*buf)->vb.size,ptr,out_p,pos);
+ memcpy(&outp[pos], ptr, cpysize);
pos+=cpysize;
ptr+=cpysize;
len-=cpysize;
- if (pos >= (*buf)->vb.size) {
+ if (pos >= buf->vb.size) {
pos=0;
/* Announces that a new buffer were filled */
- buffer_filled (dev, dma_q, *buf);
+ buffer_filled (dev, dma_q, buf);
dprintk(dev, V4L2_DEBUG_ISOC, "new buffer filled\n");
- get_next_buf (dma_q, buf);
- if (!*buf)
+ get_next_buf (dma_q, &buf);
+ if (!buf)
break;
- out_p = videobuf_to_vmalloc(&((*buf)->vb));
- if (!out_p)
+ outp = videobuf_to_vmalloc(&(buf->vb));
+ if (!outp)
return rc;
pos = 0;
}
struct tm6000_dmaqueue *dma_q = urb->context;
struct tm6000_core *dev= container_of(dma_q,struct tm6000_core,vidq);
struct tm6000_buffer *buf;
- int i, len=0, rc=1;
- int size;
- char *outp = NULL, *p;
- unsigned long copied;
-
- get_next_buf(dma_q, &buf);
- if (buf)
- outp = videobuf_to_vmalloc(&buf->vb);
+ int i, len=0, rc=1, status;
+ char *p;
- if (!outp)
- return 0;
-
- size = buf->vb.size;
-
- copied=0;
-
- if (urb->status<0) {
- print_err_status (dev,-1,urb->status);
+ if (urb->status < 0) {
+ print_err_status (dev, -1, urb->status);
return 0;
}
for (i = 0; i < urb->number_of_packets; i++) {
- int status = urb->iso_frame_desc[i].status;
+ status = urb->iso_frame_desc[i].status;
if (status<0) {
print_err_status (dev,i,status);
continue;
}
- len=urb->iso_frame_desc[i].actual_length;
+ len = urb->iso_frame_desc[i].actual_length;
-// if (len>=TM6000_URB_MSG_LEN) {
- p=urb->transfer_buffer + urb->iso_frame_desc[i].offset;
+ if (len > 0) {
+ p = urb->transfer_buffer + urb->iso_frame_desc[i].offset;
if (!urb->iso_frame_desc[i].status) {
- if ((buf->fmt->fourcc)==V4L2_PIX_FMT_TM6000) {
- rc=copy_multiplexed(p, outp, len, urb, &buf);
+ if ((dev->fourcc)==V4L2_PIX_FMT_TM6000) {
+ rc=copy_multiplexed(p, len, urb);
if (rc<=0)
return rc;
} else {
- copy_streams(p, outp, len, urb, &buf);
+ copy_streams(p, len, urb);
}
}
- copied += len;
- if (copied >= size || !buf)
- break;
-// }
+ }
}
return rc;
}
static int tm6000_prepare_isoc(struct tm6000_core *dev, unsigned int framesize)
{
struct tm6000_dmaqueue *dma_q = &dev->vidq;
- int i, j, sb_size, pipe, size, max_packets, num_bufs = 5;
+ int i, j, sb_size, pipe, size, max_packets, num_bufs = 8;
struct urb *urb;
/* De-allocates all pending stuff */
git.openpandora.org / pandora-kernel.git / blobdiff