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authorKristian Høgsberg <krh@redhat.com>2007-04-10 18:11:16 -0400
committerStefan Richter <stefanr@s5r6.in-berlin.de>2007-04-11 18:18:57 -0400
commit15536221d1f09ae7707f70a183045ee20d8bcf17 (patch)
tree1a2c4977632fee2464ebf63b95c14b74a4d16306 /drivers/firewire
parent8a2f7d932fc6a4881ff837738e23b41a1c228338 (diff)
firewire: Byteswap iso header so all headers are presented as be32.
Signed-off-by: Kristian Høgsberg <krh@redhat.com> Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Diffstat (limited to 'drivers/firewire')
-rw-r--r--drivers/firewire/fw-ohci.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/firewire/fw-ohci.c b/drivers/firewire/fw-ohci.c
index b941239671d6..2229ea0b630e 100644
--- a/drivers/firewire/fw-ohci.c
+++ b/drivers/firewire/fw-ohci.c
@@ -1257,7 +1257,13 @@ static int handle_ir_dualbuffer_packet(struct context *context,
1257 p = db + 1; 1257 p = db + 1;
1258 end = p + header_length; 1258 end = p + header_length;
1259 while (p < end && i + ctx->base.header_size <= PAGE_SIZE) { 1259 while (p < end && i + ctx->base.header_size <= PAGE_SIZE) {
1260 memcpy(ctx->header + i, p + 4, ctx->base.header_size); 1260 /* The iso header is byteswapped to little endian by
1261 * the controller, but the remaining header quadlets
1262 * are big endian. We want to present all the headers
1263 * as big endian, so we have to swap the first
1264 * quadlet. */
1265 *(u32 *) (ctx->header + i) = __swab32(*(u32 *) (p + 4));
1266 memcpy(ctx->header + i + 4, p + 8, ctx->base.header_size - 4);
1261 i += ctx->base.header_size; 1267 i += ctx->base.header_size;
1262 p += ctx->base.header_size + 4; 1268 p += ctx->base.header_size + 4;
1263 } 1269 }