eeprom.h

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00001 
00045 #ifndef DRV_EEPROM_H
00046 #define DRV_EEPROM_H
00047 
00048 #include <cfg/compiler.h>
00049 
00050 #include <kern/kfile.h>
00051 
00052 
00056 typedef enum EepromType
00057 {
00058     EEPROM_24XX16,
00059     EEPROM_24XX256,
00060     EEPROM_24XX512,
00061     EEPROM_CNT,
00062 } EepromType;
00063 
00069 typedef uint8_t e2dev_addr_t;
00070 
00075 typedef struct Eeprom
00076 {
00077     KFile fd;          
00078     EepromType type;   
00079     e2dev_addr_t addr; 
00080 } Eeprom;
00081 
00085 #define KFT_EEPROM MAKE_ID('E', 'E', 'P', 'R')
00086 
00090 INLINE Eeprom * EEPROM_CAST(KFile *fd)
00091 {
00092     ASSERT(fd->_type == KFT_EEPROM);
00093     return (Eeprom *)fd;
00094 }
00095 
00097 typedef uint16_t e2addr_t;
00098 
00108 #define e2addr(type, field) ((e2addr_t)&(((type *)0)->field))
00109 
00113 typedef uint16_t e2blk_size_t;
00114 
00118 typedef uint32_t e2_size_t;
00119 
00124 typedef struct EepromInfo
00125 {
00126     bool has_dev_addr;     
00127     e2blk_size_t blk_size; 
00128     e2_size_t e2_size;     
00129 } EepromInfo;
00130 
00131 bool eeprom_erase(Eeprom *fd, e2addr_t addr, e2_size_t count);
00132 bool eeprom_verify(Eeprom *fd, const void *buf, size_t count);
00133 void eeprom_init(Eeprom *fd, EepromType, e2dev_addr_t, bool verify);
00134 
00135 #endif /* DRV_EEPROM_H */