firewire: implement asynchronous stream transmission

[pandora-kernel.git] / drivers / firewire / fw-ohci.c

diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c
index c922783..1180d0b 100644 (file)
--- a/drivers/firewire/fw-ohci.c
+++ b/drivers/firewire/fw-ohci.c
@@ -936,7 +936,9 @@ static int at_context_queue_packet(struct context *ctx,
         */
 
        header = (__le32 *) &d[1];
-       if (packet->header_length > 8) {
+       switch (packet->header_length) {
+       case 16:
+       case 12:
                header[0] = cpu_to_le32((packet->header[0] & 0xffff) |
                                        (packet->speed << 16));
                header[1] = cpu_to_le32((packet->header[1] & 0xffff) |
@@ -950,12 +952,27 @@ static int at_context_queue_packet(struct context *ctx,
                        header[3] = (__force __le32) packet->header[3];
 
                d[0].req_count = cpu_to_le16(packet->header_length);
-       } else {
+               break;
+
+       case 8:
                header[0] = cpu_to_le32((OHCI1394_phy_tcode << 4) |
                                        (packet->speed << 16));
                header[1] = cpu_to_le32(packet->header[0]);
                header[2] = cpu_to_le32(packet->header[1]);
                d[0].req_count = cpu_to_le16(12);
+               break;
+
+       case 4:
+               header[0] = cpu_to_le32((packet->header[0] & 0xffff) |
+                                       (packet->speed << 16));
+               header[1] = cpu_to_le32(packet->header[0] & 0xffff0000);
+               d[0].req_count = cpu_to_le16(8);
+               break;
+
+       default:
+               /* BUG(); */
+               packet->ack = RCODE_SEND_ERROR;
+               return -1;
        }
 
        driver_data = (struct driver_data *) &d[3];