yaffs2: Yaffs endian support

[yaffs2.git] / yaffs_checkptrw.c

diff --git a/yaffs_checkptrw.c b/yaffs_checkptrw.c
index 16ee1e0695c6b468941f4fcd0c6b983324e6d7db..59ca34afe3ee749aff52f664bfff11d8369ab86e 100644 (file)
--- a/yaffs_checkptrw.c
+++ b/yaffs_checkptrw.c
@@ -13,6 +13,7 @@
 
 #include "yaffs_checkptrw.h"
 #include "yaffs_getblockinfo.h"
+#include "yaffs_endian.h"
 
 struct yaffs_checkpt_chunk_hdr {
        int version;
@@ -32,6 +33,18 @@ static int apply_block_offset(struct yaffs_dev *dev, int block)
        return block - dev->block_offset;
 }
 
+
+static void yaffs2_do_endian_hdr(struct yaffs_dev *dev,
+                                struct yaffs_checkpt_chunk_hdr *hdr)
+{
+       if (!dev->swap_endian)
+               return;
+       hdr->version = swap_s32(hdr->version);
+       hdr->seq     = swap_s32(hdr->seq);
+       hdr->sum     = swap_u32(hdr->sum);
+       hdr->xor     = swap_u32(hdr->xor);
+}
+
 static void yaffs2_checkpt_init_chunk_hdr(struct yaffs_dev *dev)
 {
        struct yaffs_checkpt_chunk_hdr hdr;
@@ -43,6 +56,7 @@ static void yaffs2_checkpt_init_chunk_hdr(struct yaffs_dev *dev)
 
        dev->checkpt_byte_offs = sizeof(hdr);
 
+       yaffs2_do_endian_hdr(dev, &hdr);
        memcpy(dev->checkpt_buffer, &hdr, sizeof(hdr));
 }
 
@@ -51,6 +65,7 @@ static int yaffs2_checkpt_check_chunk_hdr(struct yaffs_dev *dev)
        struct yaffs_checkpt_chunk_hdr hdr;
 
        memcpy(&hdr, dev->checkpt_buffer, sizeof(hdr));
+       yaffs2_do_endian_hdr(dev, &hdr);
 
        dev->checkpt_byte_offs = sizeof(hdr);