eeprom.h

Go to the documentation of this file.
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_24XX256,
00076     EEPROM_24XX512,
00077     EEPROM_24XX1024,
00078     EEPROM_CNT,
00079 } EepromType;
00080 
00086 typedef uint8_t e2dev_addr_t;
00087 
00092 typedef struct Eeprom
00093 {
00094     KBlock blk;
00095     I2c *i2c;
00096     EepromType type;   
00097     e2dev_addr_t addr; 
00098     bool verify;
00099 #if !CONFIG_EEPROM_DISABLE_OLD_API
00100     union {
00101         KFile fd;
00102         KFileBlock fdblk;
00103     } DEPRECATED;
00104 #endif /* !CONFIG_EEPROM_DISABLE_OLD_API */
00105 } Eeprom;
00106 
00107 #if !CONFIG_EEPROM_DISABLE_OLD_API
00108     STATIC_ASSERT(offsetof(Eeprom, fd) == offsetof(Eeprom, fdblk.fd));
00109 #endif /* !CONFIG_EEPROM_DISABLE_OLD_API */
00110 
00114 #define KBT_EEPROM MAKE_ID('E', 'E', 'P', 'R')
00115 
00119 INLINE Eeprom * EEPROM_CAST_KBLOCK(KBlock *blk)
00120 {
00121     ASSERT(blk->priv.type == KBT_EEPROM);
00122     return (Eeprom *)blk;
00123 }
00124 
00126 typedef uint16_t e2addr_t;
00127 
00137 #define e2addr(type, field) ((e2addr_t)&(((type *)0)->field))
00138 
00142 typedef uint16_t e2blk_size_t;
00143 
00147 typedef uint32_t e2_size_t;
00148 
00153 typedef struct EepromInfo
00154 {
00155     bool has_dev_addr;     
00156     e2blk_size_t blk_size; 
00157     e2_size_t e2_size;     
00158 } EepromInfo;
00159 
00160 bool eeprom_erase(Eeprom *eep, e2addr_t addr, e2_size_t count);
00161 bool eeprom_verify_4(Eeprom *eep, e2addr_t addr, const void *buf, size_t count);
00162 void eeprom_init_5(Eeprom *eep, I2c *i2c, EepromType type, e2dev_addr_t addr, bool verify);
00163 
00164 #if !CONFIG_EEPROM_DISABLE_OLD_API
00165 
00166 DEPRECATED INLINE bool eeprom_verify_3(Eeprom *eep, const void *buf, size_t count)
00167 {
00168     return eeprom_verify_4(eep, (e2addr_t)eep->fdblk.fd.seek_pos, buf, count);
00169 }
00170 DEPRECATED INLINE void eeprom_init_4(Eeprom *eep, EepromType type, e2dev_addr_t addr, bool verify)
00171 {
00172     eeprom_init_5(eep, &local_i2c_old_api, type, addr, verify);
00173     kfileblock_init(&eep->fdblk, &eep->blk);
00174 }
00175 #endif /* !CONFIG_EEPROM_DISABLE_OLD_API */
00176 
00177 #endif /* DRV_EEPROM_H */