#ifndef DRV_EEPROM_H
#define DRV_EEPROM_H
-#include "cfg/cfg_eeprom.h"
#include <cfg/compiler.h>
+#include <kern/kfile.h>
+
+
+/**
+ * Values for Eeprom types.
+ */
+typedef enum EepromType
+{
+ EEPROM_24XX16,
+ EEPROM_24XX256,
+ EEPROM_24XX512,
+ EEPROM_CNT,
+} EepromType;
+
+/**
+ * On the same I2C bus can live more than one EEPROM
+ * device. Each device can be addressed by one or more
+ * pins.
+ */
+typedef uint8_t e2dev_addr_t;
+
+/**
+ * Describe an EEPROM context, used by the driver to
+ * access the single device.
+ */
+typedef struct Eeprom
+{
+ KFile fd; ///< File descriptor.
+ EepromType type; ///< EEPROM type
+ e2dev_addr_t addr; ///< Device address.
+} Eeprom;
/**
- * \name Values for CONFIG_EEPROM_TYPE
- * \{
+ * ID for eeproms.
*/
-#define EEPROM_24XX16 1
-#define EEPROM_24XX256 2
-/*\}*/
+#define KFT_EEPROM MAKE_ID('E', 'E', 'P', 'R')
-#if CONFIG_EEPROM_TYPE == EEPROM_24XX16
- #define EEPROM_BLKSIZE 0x10 ///< Eeprom block size (16byte)
- #define EEPROM_SIZE 0x800 ///< Eeprom total size (2kB)
-#elif CONFIG_EEPROM_TYPE == EEPROM_24XX256
- #define EEPROM_BLKSIZE 0x40 ///< Eeprom block size (64byte)
- #define EEPROM_SIZE 0x8000 ///< Eeprom total size (32kB)
-#else
- #error Unsupported EEPROM type.
-#endif
+/**
+ * Convert + ASSERT from generic KFile to Eeprom.
+ */
+INLINE Eeprom * EEPROM(KFile *fd)
+{
+ ASSERT(fd->_type == KFT_EEPROM);
+ return (Eeprom *)fd;
+}
/// Type for EEPROM addresses
typedef uint16_t e2addr_t;
*/
#define e2addr(type, field) ((e2addr_t)&(((type *)0)->field))
+/**
+ * Type for EEPROM block size.
+ */
+typedef uint16_t e2blk_size_t;
+
+/**
+ * Type for accessing EEPROM whole size.
+ */
+typedef uint32_t e2_size_t;
+
+/**
+ * Descrive all EEPROM informations
+ * needed by the driver.
+ */
+typedef struct EepromInfo
+{
+ bool has_dev_addr; ///< true if memory is device addressable (its A0, A1, A2 pin are used by memory).
+ e2blk_size_t blk_size; ///< block size
+ e2_size_t e2_size; ///< eeprom size
+} EepromInfo;
-bool eeprom_write(e2addr_t addr, const void *buf, size_t count);
-bool eeprom_read(e2addr_t addr, void *buf, size_t count);
-bool eeprom_write_char(e2addr_t addr, char c);
-int eeprom_read_char(e2addr_t addr);
-void eeprom_erase(e2addr_t addr, size_t count);
-void eeprom_init(void);
-void eeprom_test(void);
+bool eeprom_erase(Eeprom *fd, e2addr_t addr, e2_size_t count);
+bool eeprom_verify(Eeprom *fd, const void *buf, size_t count);
+void eeprom_init(Eeprom *fd, EepromType, e2dev_addr_t, bool verify);
#endif /* DRV_EEPROM_H */