00001
00043 #ifndef DRV_EEPROM_H
00044 #define DRV_EEPROM_H
00045 
00046 #include "cfg/cfg_eeprom.h"
00047
00048 #include <cfg/compiler.h>
00049 #include <cfg/debug.h>
00050
00051 #include <drv/i2c.h>
00052
00053 #include <io/kblock.h>
00054 #include <io/kfile.h>
00055 #include <io/kfile_block.h>
00056
00057 #include <cpu/attr.h>
00058
00059 #if COMPILER_C99
00060     #define eeprom_init(...)          PP_CAT(eeprom_init ## _, COUNT_PARMS(__VA_ARGS__)) (__VA_ARGS__)
00061     #define eeprom_verify(...)        PP_CAT(eeprom_verify ## _, COUNT_PARMS(__VA_ARGS__)) (__VA_ARGS__)
00062 #else
00063     #define eeprom_init(args...)      PP_CAT(eeprom_init ## _, COUNT_PARMS(args)) (args)
00064     #define eeprom_verify(args...)    PP_CAT(eeprom_verify ## _, COUNT_PARMS(args)) (args)
00065 #endif
00066 
00067
00071 typedef enum EepromType
00072 {
00073     EEPROM_24XX08,
00074     EEPROM_24XX16,
00075     EEPROM_24XX32,
00076     EEPROM_24XX64,
00077     EEPROM_24XX128,
00078     EEPROM_24XX256,
00079     EEPROM_24XX512,
00080     EEPROM_24XX1024,
00081     EEPROM_CNT,
00082 } EepromType;
00083
00089 typedef uint8_t e2dev_addr_t;
00090
00095 typedef struct Eeprom
00096 {
00097     KBlock blk;
00098     I2c *i2c;
00099     EepromType type;
00100     e2dev_addr_t addr;
00101     bool verify;
00102 #if !CONFIG_EEPROM_DISABLE_OLD_API
00103     union {
00104         KFile fd;
00105         KFileBlock fdblk;
00106     } DEPRECATED;
00107 #endif /* !CONFIG_EEPROM_DISABLE_OLD_API */
00108 } Eeprom;
00109
00110 #if !CONFIG_EEPROM_DISABLE_OLD_API
00111     STATIC_ASSERT(offsetof(Eeprom, fd) == offsetof(Eeprom, fdblk.fd));
00112 #endif /* !CONFIG_EEPROM_DISABLE_OLD_API */
00113
00117 #define KBT_EEPROM MAKE_ID('E', 'E', 'P', 'R')
00118 
00122 INLINE Eeprom * EEPROM_CAST_KBLOCK(KBlock *blk)
00123 {
00124     ASSERT(blk->priv.type == KBT_EEPROM);
00125     return (Eeprom *)blk;
00126 }
00127
00129 typedef uint16_t e2addr_t;
00130
00140 #define e2addr(type, field) ((e2addr_t)&(((type *)0)->field))
00141 
00145 typedef uint16_t e2blk_size_t;
00146
00150 typedef uint32_t e2_size_t;
00151
00156 typedef struct EepromInfo
00157 {
00158     bool has_dev_addr;
00159     e2blk_size_t blk_size;
00160     e2_size_t e2_size;
00161 } EepromInfo;
00162
00163 bool eeprom_erase(Eeprom *eep, e2addr_t addr, e2_size_t count);
00164 bool eeprom_verify_4(Eeprom *eep, e2addr_t addr, const void *buf, size_t count);
00165 void eeprom_init_5(Eeprom *eep, I2c *i2c, EepromType type, e2dev_addr_t addr, bool verify);
00166
00167 #if !CONFIG_EEPROM_DISABLE_OLD_API
00168 
00169 DEPRECATED INLINE bool eeprom_verify_3(Eeprom *eep, const void *buf, size_t count)
00170 {
00171     return eeprom_verify_4(eep, (e2addr_t)eep->fdblk.fd.seek_pos, buf, count);
00172 }
00173 DEPRECATED INLINE void eeprom_init_4(Eeprom *eep, EepromType type, e2dev_addr_t addr, bool verify)
00174 {
00175     eeprom_init_5(eep, &local_i2c_old_api, type, addr, verify);
00176     kfileblock_init(&eep->fdblk, &eep->blk);
00177 }
00178 #endif /* !CONFIG_EEPROM_DISABLE_OLD_API */
00179
00180 #endif /* DRV_EEPROM_H */