+/*----------------- Device ---------------------------------*/
+
+struct yaffs_DeviceStruct {
+ struct list_head devList;
+ const char *name;
+
+ /* Entry parameters set up way early. Yaffs sets up the rest.*/
+ int nBytesPerChunk; /* Should be a power of 2 >= 512 */
+ int nChunksPerBlock; /* does not need to be a power of 2 */
+ int nBytesPerSpare; /* spare area size */
+ int startBlock; /* Start block we're allowed to use */
+ int endBlock; /* End block we're allowed to use */
+ int nReservedBlocks; /* We want this tuneable so that we can reduce */
+ /* reserved blocks on NOR and RAM. */
+
+ int nShortOpCaches; /* If <= 0, then short op caching is disabled, else
+ * the number of short op caches (don't use too many)
+ */
+
+ int useHeaderFileSize; /* Flag to determine if we should use file sizes from the header */
+
+ int useNANDECC; /* Flag to decide whether or not to use NANDECC */
+
+ void *genericDevice; /* Pointer to device context
+ * On an mtd this holds the mtd pointer.
+ */
+ /* NAND access functions (Must be set before calling YAFFS)*/
+
+ int (*writeChunkToNAND) (struct yaffs_DeviceStruct * dev,
+ int chunkInNAND, const __u8 * data,
+ const yaffs_Spare * spare);
+ int (*readChunkFromNAND) (struct yaffs_DeviceStruct * dev,
+ int chunkInNAND, __u8 * data,
+ yaffs_Spare * spare);
+ int (*eraseBlockInNAND) (struct yaffs_DeviceStruct * dev,
+ int blockInNAND);
+ int (*initialiseNAND) (struct yaffs_DeviceStruct * dev);
+
+#ifdef CONFIG_YAFFS_YAFFS2
+ int (*writeChunkWithTagsToNAND) (struct yaffs_DeviceStruct * dev,
+ int chunkInNAND, const __u8 * data,
+ const yaffs_ExtendedTags * tags);
+ int (*readChunkWithTagsFromNAND) (struct yaffs_DeviceStruct * dev,
+ int chunkInNAND, __u8 * data,
+ yaffs_ExtendedTags * tags);
+ int (*markNANDBlockBad) (struct yaffs_DeviceStruct * dev, int blockNo);
+ int (*queryNANDBlock) (struct yaffs_DeviceStruct * dev, int blockNo,
+ yaffs_BlockState * state, int *sequenceNumber);
+#endif