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00047
00048 #define NO_STDIO_NUT_WRAPPER
00049
00050 #include <stdio.h>
00051 #include <sys/types.h>
00052
00053 static FILE *eepromFile = 0;
00054
00055
00056 void unix_eeprom_acces(const void *addr)
00057 {
00058 if (eepromFile == 0) {
00059
00060 eepromFile = fopen("eeprom.bin", "a");
00061 if (eepromFile)
00062 fclose(eepromFile);
00063
00064 eepromFile = fopen("eeprom.bin", "r+");
00065 if (eepromFile == 0) {
00066 printf("ERROR: Open 'eeprom.bin' failed\n\r");
00067 }
00068 }
00069 if (eepromFile) {
00070 fseek(eepromFile, (long) addr, SEEK_SET);
00071 }
00072 }
00073
00076 void eeprom_write_byte(unsigned char *addr, unsigned char val)
00077 {
00078 unix_eeprom_acces(addr);
00079 fwrite(&val, 1, 1, eepromFile);
00080 fflush(eepromFile);
00081 }
00082
00086 void eeprom_read_block(void *buf, const void *addr, size_t n)
00087 {
00088 uint16_t count;
00089 unix_eeprom_acces(addr);
00090 count = fread(buf, 1, n, eepromFile);
00091
00092
00093 while (count < n) {
00094 ((uint8_t *) buf)[count++] = 0xff;
00095 }
00096 }
00097
00100 uint8_t eeprom_read_byte(const unsigned char *addr)
00101 {
00102 uint8_t result;
00103 uint16_t count;
00104 unix_eeprom_acces(addr);
00105 count = fread(&result, 1, 1, eepromFile);
00106 if (count != 1)
00107 return -1;
00108 return result;
00109 }
00110
00113 uint16_t eeprom_read_word(const unsigned short *addr)
00114 {
00115 uint16_t result;
00116 uint16_t count;
00117 unix_eeprom_acces(addr);
00118 count = fread(&result, 1, 2, eepromFile);
00119 if (count != 2)
00120 return -1;
00121 return result;
00122 }
00123
00129 int NutNvMemLoad(unsigned int addr, void *buff, size_t siz)
00130 {
00131 eeprom_read_block (buff, (void *)addr, siz);
00132 return 0;
00133 }
00134
00140 int NutNvMemSave(unsigned int addr, const void *buff, size_t len)
00141 {
00142 uint8_t *cp;
00143 size_t i;
00144
00145 for (cp = (uint8_t *) buff, i = 0; i < len; cp++, i++) {
00146 if (eeprom_read_byte((uint8_t *) (addr + i)) != *cp) {
00147 eeprom_write_byte((uint8_t *) (addr + i), *cp);
00148 }
00149 }
00150 return 0;
00151 }