X-Git-Url: http://www.aleph1.co.uk/gitweb/?p=yaffs2.git;a=blobdiff_plain;f=yaffs_guts.h;h=62d18cb6525567c40303fea61714274e0bd1ba5c;hp=a063776913780d65dfa9ff20e45df468e9c0f726;hb=87b33ecd1898c99b9aa2b0abcbb3e6002d6b3532;hpb=20de150d680c2a84c4a2e0d5f0f354274c7ff9ab

diff --git a/yaffs_guts.h b/yaffs_guts.h
index a063776..62d18cb 100644
--- a/yaffs_guts.h
+++ b/yaffs_guts.h
@@ -49,7 +49,12 @@
 #define YAFFS_TNODES_INTERNAL_BITS	(YAFFS_TNODES_LEVEL0_BITS - 1)
 #define YAFFS_TNODES_INTERNAL_MASK	0x7
 #define YAFFS_TNODES_MAX_LEVEL		8
+#define YAFFS_TNODES_MAX_BITS		(YAFFS_TNODES_LEVEL0_BITS + \
+					YAFFS_TNODES_INTERNAL_BITS * \
+					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
@@ -61,7 +66,7 @@
 #define YAFFS_MIN_YAFFS2_CHUNK_SIZE	1024
 #define YAFFS_MIN_YAFFS2_SPARE_SIZE	32
 
-#define YAFFS_MAX_CHUNK_ID		0x000fffff
+
 
 #define YAFFS_ALLOCATION_NOBJECTS	100
 #define YAFFS_ALLOCATION_NTNODES	100
@@ -72,7 +77,9 @@
 #define YAFFS_OBJECT_SPACE		0x40000
 #define YAFFS_MAX_OBJECT_ID		(YAFFS_OBJECT_SPACE - 1)
 
-#define YAFFS_CHECKPOINT_VERSION	5
+/* Binary data version stamps */
+#define YAFFS_SUMMARY_VERSION		1
+#define YAFFS_CHECKPOINT_VERSION	7
 
 #ifdef CONFIG_YAFFS_UNICODE
 #define YAFFS_MAX_NAME_LENGTH		127
@@ -513,7 +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 */
@@ -529,9 +536,13 @@ 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 */
+	int tags_9bytes;	/* Use 9 byte tags */
 	int no_tags_ecc;	/* Flag to decide whether or not to do ECC
 				 * on packed tags (yaffs2) */
 
@@ -547,29 +558,10 @@ 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 */
-	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.
@@ -582,7 +574,7 @@ struct yaffs_param {
 	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
@@ -600,10 +592,42 @@ struct yaffs_param {
 	int always_check_erased;	/* Force chunk erased check always on */
 
 	int disable_summary;
+
+};
+
+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 */
 
@@ -750,6 +774,7 @@ 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;
@@ -957,5 +982,7 @@ void yaffs_addr_to_chunk(struct yaffs_dev *dev, loff_t addr,
  */
 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);
+
 
 #endif