yaffs driver refactoring: Change to Linux driver interface

[yaffs2.git] / yaffs_guts.h

diff --git a/yaffs_guts.h b/yaffs_guts.h
index 1aefb8518c5116b9644ace7d341cc47b4f214714..643e5750954784e1cfb2cdd2a5ac6f4268eb4c76 100644 (file)
--- a/yaffs_guts.h
+++ b/yaffs_guts.h
@@ -520,7 +520,7 @@ struct yaffs_param {
        /*
         * Entry parameters set up way early. Yaffs sets up the rest.
         * The structure should be zeroed out before use so that unused
-        * and defualt values are zero.
+        * and default values are zero.
         */
 
        int inband_tags;        /* Use unband tags */
@@ -536,6 +536,10 @@ struct yaffs_param {
        int n_caches;           /* If <= 0, then short op caching is disabled,
                                 * else the number of short op caches.
                                 */
+       int cache_bypass_aligned; /* If non-zero then bypass the cache for
+                                  * aligned writes.
+                                  */
+
        int use_nand_ecc;       /* Flag to decide whether or not to use
                                 * NAND driver ECC on data (yaffs1) */
        int tags_9bytes;        /* Use 9 byte tags */
@@ -554,29 +558,43 @@ struct yaffs_param {
 
        int enable_xattr;       /* Enable xattribs */
 
-       /* NAND access functions (Must be set before calling YAFFS) */
-
-       int (*write_chunk_fn) (struct yaffs_dev *dev,
-                              int nand_chunk, const u8 *data,
-                              const struct yaffs_spare *spare);
-       int (*read_chunk_fn) (struct yaffs_dev *dev,
-                             int nand_chunk, u8 *data,
-                             struct yaffs_spare *spare);
-       int (*erase_fn) (struct yaffs_dev *dev, int flash_block);
-       int (*initialise_flash_fn) (struct yaffs_dev *dev);
-       int (*deinitialise_flash_fn) (struct yaffs_dev *dev);
-
-       /* yaffs2 mode functions */
+       /* Tags marshalling functions.
+        * If these are not set then defaults will be assigned.
+        */
        int (*write_chunk_tags_fn) (struct yaffs_dev *dev,
                                    int nand_chunk, const u8 *data,
                                    const struct yaffs_ext_tags *tags);
        int (*read_chunk_tags_fn) (struct yaffs_dev *dev,
                                   int nand_chunk, u8 *data,
                                   struct yaffs_ext_tags *tags);
-       int (*bad_block_fn) (struct yaffs_dev *dev, int block_no);
+
        int (*query_block_fn) (struct yaffs_dev *dev, int block_no,
                               enum yaffs_block_state *state,
                               u32 *seq_number);
+       int (*mark_bad_fn) (struct yaffs_dev *dev, int block_no);
+
+       /* NAND driver access functions All required except
+        * the deinitialise function which is optional.
+        */
+
+       int (*drv_write_chunk_fn) (struct yaffs_dev *dev, int nand_chunk,
+                                  const u8 *data, int data_len,
+                                  const u8 *oob, int oob_len);
+       int (*drv_read_chunk_fn) (struct yaffs_dev *dev, int nand_chunk,
+                                  u8 *data, int data_len,
+                                  u8 *oob, int oob_len,
+                                  enum yaffs_ecc_result *ecc_result);
+       int (*drv_erase_fn) (struct yaffs_dev *dev, int block_no);
+       int (*drv_mark_bad_fn) (struct yaffs_dev *dev, int block_no);
+       int (*drv_check_bad_fn) (struct yaffs_dev *dev, int block_no);
+       int (*drv_initialise_fn) (struct yaffs_dev *dev);
+       int (*drv_deinitialise_fn) (struct yaffs_dev *dev);
+
+
+       int max_objects;        /*
+                                * Set to limit the number of objects created.
+                                * 0 = no limit.
+                               */
 
        /* The remove_obj_fn function must be supplied by OS flavours that
         * need it.
@@ -608,10 +626,6 @@ struct yaffs_param {
 
        int disable_summary;
 
-       int max_objects;        /*
-                                * Set to limit the number of objects created.
-                                * 0 = no limit.
-                               */
 };
 
 struct yaffs_dev {
@@ -762,6 +776,7 @@ struct yaffs_dev {
        u32 n_page_writes;
        u32 n_page_reads;
        u32 n_erasures;
+       u32 n_bad_markings;
        u32 n_erase_failures;
        u32 n_gc_copies;
        u32 all_gcs;