*/
typedef size_t (*disk_page_read_t) (struct BattFsSuper *d, pgcnt_t page, pgaddr_t addr, void *buf, size_t);
+
/**
- * Type interface for disk page write function.
- * \a page is the page address, \a addr the address inside the page,
+ * Type interface for disk page load function.
+ * The disk should supply a buffer used for loading/saving pages.
+ * This has to be done by the disk driver because it knows memory details
+ * (e.g. some memories can have the buffer inside the memory itself).
+ * \a page is the page to be loaded from the disk in the buffer.
+ * \return true if ok, false on errors.
+ */
+typedef bool (*disk_page_load_t) (struct BattFsSuper *d, pgcnt_t page);
+
+/**
+ * Type interface for disk pagebuffer write function.
+ * \a addr is the address inside the current loaded page,
* \a size the lenght to be written.
* \return the number of bytes written.
*/
-typedef size_t (*disk_page_write_t) (struct BattFsSuper *d, pgcnt_t page, pgaddr_t addr, const void *buf, size_t);
+typedef size_t (*disk_buffer_write_t) (struct BattFsSuper *d, pgaddr_t addr, const void *buf, size_t);
+
+/**
+ * Type interface for disk pagebuffer read function.
+ * \a addr is the address inside the current loaded page,
+ * \a size the lenght to be read.
+ * \return the number of bytes read.
+ */
+typedef size_t (*disk_buffer_read_t) (struct BattFsSuper *d, pgaddr_t addr, void *buf, size_t);
+
+/**
+ * Type interface for disk page save function.
+ * The disk should supply a buffer used for loading/saving pages.
+ * For details \see disk_page_load_t.
+ * \a page is the page where the buffer will be written.
+ * \return true if ok, false on errors.
+ */
+typedef bool (*disk_page_save_t) (struct BattFsSuper *d, pgcnt_t page);
/**
* Type interface for disk page erase function.
{
disk_open_t open; ///< Disk init.
disk_page_read_t read; ///< Page read.
- disk_page_write_t write; ///< Page write.
+ disk_page_load_t load; ///< Page load.
+ disk_buffer_write_t bufferWrite; ///< Buffer write.
+ disk_buffer_read_t bufferRead; ///< Buffer read.
+ disk_page_save_t save; ///< Page save.
disk_page_erase_t erase; ///< Page erase.
disk_close_t close; ///< Disk deinit.
* the entire disk in memory.
*/
pgcnt_t *page_array;
+ pgcnt_t curr_page; ///< Current page loaded in disk buffer.
+ bool cache_dirty; ///< True if current cache is dirty (nneds to be flushed).
/**
* Lowest address, in page array, for free pages.
BattFsSuper *disk; ///< Disk context
filemode_t mode; ///< File open mode
pgcnt_t *start; ///< Pointer to page_array file start position.
+ pgcnt_t max_off; ///< Max page offset allocated for the file.
} BattFs;
/**