Change the object type if it turns out to be wrong during a scan

[yaffs2.git] / yaffs_guts.h

diff --git a/yaffs_guts.h b/yaffs_guts.h
index eab3e083dc685b9a25a83c37faf3f1e8dc160fe9..d89f8b00de956c4c6c1881e2a48d42d2325841ff 100644 (file)
--- a/yaffs_guts.h
+++ b/yaffs_guts.h
@@ -39,7 +39,7 @@
  * 2^(3*MAX_LEVEL+4)
  *
  * Thus a max level of 8 supports files with up to 2^^28 chunks which gives
- * a maximum file size of arounf 51Gbytees with 2k chunks.
+ * a maximum file size of around 512Gbytees with 2k chunks.
  */
 #define YAFFS_NTNODES_LEVEL0           16
 #define YAFFS_TNODES_LEVEL0_BITS       4
@@ -558,39 +558,6 @@ struct yaffs_param {
 
        int enable_xattr;       /* Enable xattribs */
 
-       /* 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 (*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.
@@ -625,11 +592,43 @@ struct yaffs_param {
        int always_check_erased;        /* Force chunk erased check always on */
 
        int disable_summary;
+       int disable_bad_block_marking;
 
 };
 
+struct yaffs_driver {
+       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);
+};
+
+struct yaffs_tags_handler {
+       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 (*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);
+};
+
 struct yaffs_dev {
        struct yaffs_param param;
+       struct yaffs_driver drv;
+       struct yaffs_tags_handler tagger;
 
        /* Context storage. Holds extra OS specific data for this device */
 
@@ -638,6 +637,7 @@ struct yaffs_dev {
 
        struct list_head dev_list;
 
+       int ll_init;
        /* Runtime parameters. Set up by YAFFS. */
        int data_bytes_per_chunk;
 
@@ -776,6 +776,7 @@ struct yaffs_dev {
        u32 n_page_writes;
        u32 n_page_reads;
        u32 n_erasures;
+       u32 n_bad_queries;
        u32 n_bad_markings;
        u32 n_erase_failures;
        u32 n_gc_copies;
@@ -854,6 +855,9 @@ int yaffs_rename_obj(struct yaffs_obj *old_dir, const YCHAR * old_name,
 
 int yaffs_unlinker(struct yaffs_obj *dir, const YCHAR * name);
 int yaffs_del_obj(struct yaffs_obj *obj);
+struct yaffs_obj *yaffs_retype_obj(struct yaffs_obj *obj,
+                                  enum yaffs_obj_type type);
+
 
 int yaffs_get_obj_name(struct yaffs_obj *obj, YCHAR * name, int buffer_size);
 loff_t yaffs_get_obj_length(struct yaffs_obj *obj);
@@ -925,6 +929,8 @@ int yaffs_bg_gc(struct yaffs_dev *dev, unsigned urgency);
 int yaffs_dump_obj(struct yaffs_obj *obj);
 
 void yaffs_guts_test(struct yaffs_dev *dev);
+int yaffs_guts_ll_init(struct yaffs_dev *dev);
+
 
 /* A few useful functions to be used within the core files*/
 void yaffs_chunk_del(struct yaffs_dev *dev, int chunk_id, int mark_flash,
@@ -976,6 +982,8 @@ u32 yaffs_get_group_base(struct yaffs_dev *dev, struct yaffs_tnode *tn,
 
 int yaffs_is_non_empty_dir(struct yaffs_obj *obj);
 
+int yaffs_format_dev(struct yaffs_dev *dev);
+
 void yaffs_addr_to_chunk(struct yaffs_dev *dev, loff_t addr,
                                int *chunk_out, u32 *offset_out);
 /*
@@ -986,5 +994,14 @@ void yaffs_oh_size_load(struct yaffs_obj_hdr *oh, loff_t fsize);
 loff_t yaffs_oh_to_size(struct yaffs_obj_hdr *oh);
 loff_t yaffs_max_file_size(struct yaffs_dev *dev);
 
+/*
+ * Debug function to count number of blocks in each state
+ * NB Needs to be called with correct number of integers
+ */
+
+void yaffs_count_blocks_by_state(struct yaffs_dev *dev, int bs[10]);
+
+int yaffs_find_chunk_in_file(struct yaffs_obj *in, int inode_chunk,
+                                   struct yaffs_ext_tags *tags);
 
 #endif