yaffs2: Yaffs endian support

[yaffs2.git] / yaffs_guts.h

diff --git a/yaffs_guts.h b/yaffs_guts.h
index b0aca333fe706330bafe0f5ad983ab5b54b3bcf2..c7e201cbdc56737ee9ab412f7c92bc32233ebec6 100644 (file)
--- a/yaffs_guts.h
+++ b/yaffs_guts.h
@@ -153,7 +153,8 @@ struct yaffs_tags {
 
 union yaffs_tags_union {
        struct yaffs_tags as_tags;
-       u8 as_bytes[8];
+       u8  as_bytes[8];
+       u32 as_u32[2];
 };
 
 
@@ -311,6 +312,11 @@ struct yaffs_block_info {
 
 };
 
+union yaffs_block_info_union {
+       struct yaffs_block_info bi;
+       u32     as_u32[2];
+};
+
 /* -------------------------- Object structure -------------------------------*/
 /* This is the object structure as stored on NAND */
 
@@ -560,6 +566,8 @@ struct yaffs_param {
 
        int hide_lost_n_found;  /* Set non-zero to hide the lost-n-found dir. */
 
+       int stored_endian; /* 0=cpu endian, 1=little endian, 2=big endian */
+
        /* The remove_obj_fn function must be supplied by OS flavours that
         * need it.
         * yaffs direct uses it to implement the faster readdir.
@@ -644,6 +652,8 @@ struct yaffs_dev {
                                 */
        u16 chunk_grp_size;     /* == 2^^chunk_grp_bits */
 
+       struct yaffs_tnode *tn_swap_buffer;
+
        /* Stuff to support wide tnodes */
        u32 tnode_width;
        u32 tnode_mask;
@@ -657,6 +667,7 @@ struct yaffs_dev {
        int is_mounted;
        int read_only;
        int is_checkpointed;
+       int swap_endian;        /* Stored endian needs endian swap. */
 
        /* Stuff to support block offsetting to support start block zero */
        int internal_start_block;
@@ -1018,11 +1029,13 @@ int yaffs_guts_format_dev(struct yaffs_dev *dev);
 void yaffs_addr_to_chunk(struct yaffs_dev *dev, loff_t addr,
                                int *chunk_out, u32 *offset_out);
 /*
- * Marshalling functions to get loff_t file sizes into aand out of
+ * Marshalling functions to get loff_t file sizes into and out of
  * object headers.
  */
-void yaffs_oh_size_load(struct yaffs_obj_hdr *oh, loff_t fsize);
-loff_t yaffs_oh_to_size(struct yaffs_obj_hdr *oh);
+void yaffs_oh_size_load(struct yaffs_dev *dev, struct yaffs_obj_hdr *oh,
+                       loff_t fsize, int do_endian);
+loff_t yaffs_oh_to_size(struct yaffs_dev *dev, struct yaffs_obj_hdr *oh,
+                       int do_endian);
 loff_t yaffs_max_file_size(struct yaffs_dev *dev);
 
 /*