[Linux1394-cvslog] rev 665 - trunk

[SVN U. <dm...@li...>]

Author: dmaas
Date: 2002-11-06 23:03:39 -0500 (Wed, 06 Nov 2002)
New Revision: 665

Modified:
   trunk/dv1394.c
Log:
dv1394 - sync DMA mapping of packet earlier in the IR tasklet

Modified: trunk/dv1394.c
==============================================================================
--- trunk/dv1394.c	(original)
+++ trunk/dv1394.c	2002-11-06 23:03:40.000000000 -0500
@@ -2306,7 +2306,12 @@
 		/* loop over all descriptors in all frames */
 		for (i = 0; i < video->n_frames*MAX_PACKETS; i++) {
 			struct packet *p = dma_region_i(&video->packet_buf, struct packet, video->current_packet);
-			
+
+			/* make sure we are seeing the latest changes to p */
+			dma_region_sync(&video->packet_buf,
+					(unsigned long) p - (unsigned long) video->packet_buf.kvirt,
+					sizeof(struct packet));
+					
 			packet_length = le16_to_cpu(p->data_length);
 			packet_time   = le16_to_cpu(p->timestamp);
 	
@@ -2370,16 +2375,10 @@
 					if (f->n_packets > (video->frame_size / 480)) {
 						printk(KERN_ERR "frame buffer overflow during receive\n");
 					}
-	
-					/* make sure we are seeing the latest changes to packet_buf */
-					dma_region_sync(&video->packet_buf,
-							(unsigned long) p - (unsigned long) video->packet_buf.kvirt,
-							sizeof(struct packet));
 					
 					frame_put_packet(f, p);
 					
 				} /* first_frame */
-				
 			}
 			
 			/* stop, end of ready packets */