YAFFS_TNODES_MAX_LEVEL)
#define YAFFS_MAX_CHUNK_ID ((1 << YAFFS_TNODES_MAX_BITS) - 1)
+#define YAFFS_MAX_FILE_SIZE_32 0x7fffffff
+
/* Constants for YAFFS1 mode */
#define YAFFS_BYTES_PER_SPARE 16
#define YAFFS_BYTES_PER_CHUNK 512
/* Binary data version stamps */
#define YAFFS_SUMMARY_VERSION 1
-#define YAFFS_CHECKPOINT_VERSION 6
+#define YAFFS_CHECKPOINT_VERSION 7
#ifdef CONFIG_YAFFS_UNICODE
#define YAFFS_MAX_NAME_LENGTH 127
/*
* 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 */
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 */
+ int tags_9bytes; /* Use 9 byte tags */
int no_tags_ecc; /* Flag to decide whether or not to do ECC
* on packed tags (yaffs2) */
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 */
- 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 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.
void (*sb_dirty_fn) (struct yaffs_dev *dev);
/* Callback to control garbage collection. */
- unsigned (*gc_control) (struct yaffs_dev *dev);
+ unsigned (*gc_control_fn) (struct yaffs_dev *dev);
/* Debug control flags. Don't use unless you know what you're doing */
int use_header_file_size; /* Flag to determine if we should use
int disable_summary;
- int max_objects; /*
- * Set to limit the number of objects created.
- * 0 = no limit.
- */
+};
+
+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 */
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;
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);
/*