/
myavreeprom.cpp
206 lines (189 loc) · 8.03 KB
/
myavreeprom.cpp
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#include "myarveeprom.h"
MyEeprom::MyEeprom (uint32_t first_address, uint32_t max_address, uint16_t data_length, bool reload_pages) {
/*if (first_address + data_length + 1 > max_address) {
return null;
}*/
firstAddress = first_address;
maxAddress = max_address;
dataLength = data_length;
rotateEeprom = true;
if (reload_pages == false) { currentOffset = 0; }
else {
bool found = false;
currentOffset = 0;
while (!eeprom_is_ready());
while ((first_address + currentOffset * (data_length + servisInfo) < max_address) && (!found)) {
if (eeprom_read_byte((uint8_t*)(first_address + currentOffset * (data_length + servisInfo))) == P_VALID) {
found = true;
} else {
currentOffset++;
}
}
if (!found) { currentOffset = 0; }
}
}
MyEeprom::MyEeprom(uint32_t first_address) {
firstAddress = first_address;
rotateEeprom = false;
}
uint8_t MyEeprom::readByte(uint16_t relative_address) {
while (!eeprom_is_ready());
if (rotateEeprom == true) {
return(eeprom_read_byte((uint8_t*)(firstAddress + currentOffset * (dataLength + servisInfo) + servisInfo + relative_address)));
} else {
return(eeprom_read_byte((uint8_t*)(firstAddress + servisInfo + relative_address)));
}
}
void MyEeprom::writeByte(uint8_t b, uint16_t relative_address) {
if (rotateEeprom == true) {
write_byte(b, relative_address);
} else { simple_write_byte(b, relative_address); }
}
void MyEeprom::write_byte(uint8_t b, uint16_t relative_address) {
cli();
while (!eeprom_is_ready());
uint16_t pCurrentOffset = currentOffset;
if (firstAddress + (currentOffset + 1) * (dataLength + servisInfo) > maxAddress) {
currentOffset = 0;
} else { currentOffset++; }
uint8_t tb = 0;
for (uint16_t i = 0; i < dataLength; i++) {
if (i == relative_address) {
eeprom_write_byte((uint8_t*)(firstAddress + currentOffset * (dataLength + servisInfo) + servisInfo + i), b);
} else {
tb = eeprom_read_byte((uint8_t*)(firstAddress + pCurrentOffset * (dataLength + servisInfo) + servisInfo + i));
eeprom_write_byte((uint8_t*)(firstAddress + currentOffset * (dataLength + servisInfo) + servisInfo + i), tb);
}
}
eeprom_write_byte((uint8_t*)(firstAddress + currentOffset * (dataLength + servisInfo)), P_VALID);
eeprom_write_byte((uint8_t*)(firstAddress + pCurrentOffset * (dataLength + servisInfo)), P_INVALID);
sei();
}
void MyEeprom::simple_write_byte(uint8_t b, uint16_t relative_address) {
cli();
while (!eeprom_is_ready());
if (eeprom_read_byte((uint8_t*)firstAddress) == P_INVALID) {
eeprom_write_byte((uint8_t*)firstAddress, P_VALID);
}
eeprom_write_byte((uint8_t*)firstAddress + servisInfo + relative_address, b);
sei();
}
uint16_t MyEeprom::getCurrentOffset() {
return(currentOffset);
}
uint32_t MyEeprom::getCurrentFirstAddress() {
return(firstAddress + currentOffset * (dataLength + servisInfo));
}
void MyEeprom::writeULong (uint32_t l, uint16_t relative_address) {
if (rotateEeprom == true) {
write_ulong(l, relative_address);
} else {
simple_write_ulong(l, relative_address);
}
}
void MyEeprom::simple_write_ulong(uint32_t l, uint16_t relative_address) {
cli();
while (!eeprom_is_ready());
if (eeprom_read_byte((uint8_t*)firstAddress) == P_INVALID) {
eeprom_write_byte((uint8_t*)firstAddress, P_VALID);
}
eeprom_write_byte((uint8_t*)firstAddress + servisInfo + relative_address + 0, *((uint8_t*)&l + 0));
eeprom_write_byte((uint8_t*)firstAddress + servisInfo + relative_address + 1, *((uint8_t*)&l + 1));
eeprom_write_byte((uint8_t*)firstAddress + servisInfo + relative_address + 2, *((uint8_t*)&l + 2));
eeprom_write_byte((uint8_t*)firstAddress + servisInfo + relative_address + 3, *((uint8_t*)&l + 3));
sei();
}
void MyEeprom::write_ulong(uint32_t l, uint16_t relative_address) {
cli();
while (!eeprom_is_ready());
uint16_t pCurrentOffset = currentOffset;
if (firstAddress + (currentOffset + 2) * (dataLength + servisInfo) > maxAddress) {
currentOffset = 0;
} else { currentOffset++; }
uint8_t tb = 0;
int32_t currentNAddress = firstAddress + currentOffset * (dataLength + servisInfo) + servisInfo;
int32_t currentOAddress = firstAddress + pCurrentOffset * (dataLength + servisInfo) + servisInfo;
for (uint16_t i = 0; i < dataLength; i++) {
if (i == relative_address) {
eeprom_write_byte((uint8_t*)(currentNAddress + i + 0), *((uint8_t*)&l + 0));
eeprom_write_byte((uint8_t*)(currentNAddress + i + 1), *((uint8_t*)&l + 1));
eeprom_write_byte((uint8_t*)(currentNAddress + i + 2), *((uint8_t*)&l + 2));
eeprom_write_byte((uint8_t*)(currentNAddress + i + 3), *((uint8_t*)&l + 3));
i+=3;
} else {
tb = eeprom_read_byte((uint8_t*)(currentOAddress + i));
eeprom_write_byte((uint8_t*)(currentNAddress + i), tb);
}
}
eeprom_write_byte((uint8_t*)(firstAddress + currentOffset * (dataLength + servisInfo)), P_VALID);
eeprom_write_byte((uint8_t*)(firstAddress + pCurrentOffset * (dataLength + servisInfo)), P_INVALID);
sei();
}
uint32_t MyEeprom::readULong (uint16_t relative_address) {
uint32_t l = 0;
uint32_t cAddress = 0;
if (rotateEeprom == true) {
cAddress = firstAddress + currentOffset * (dataLength + servisInfo) + servisInfo + relative_address;
} else {
cAddress = firstAddress + servisInfo + relative_address;
}
while (!eeprom_is_ready());
*((uint8_t*)&l + 0) = eeprom_read_byte((uint8_t*)(cAddress + 0));
*((uint8_t*)&l + 1) = eeprom_read_byte((uint8_t*)(cAddress + 1));
*((uint8_t*)&l + 2) = eeprom_read_byte((uint8_t*)(cAddress + 2));
*((uint8_t*)&l + 3) = eeprom_read_byte((uint8_t*)(cAddress + 3));
return l;
}
void MyEeprom::writeUInt (uint16_t l, uint16_t relative_address) {
if (rotateEeprom == true) {
write_uint(l, relative_address);
} else {
simple_write_uint(l, relative_address);
}
}
uint16_t MyEeprom::readUInt (uint16_t relative_address) {
uint16_t l = 0;
uint32_t cAddress = 0;
if (rotateEeprom == true) {
cAddress = firstAddress + currentOffset * (dataLength + servisInfo) + servisInfo + relative_address;
} else {
cAddress = firstAddress + servisInfo + relative_address;
}
*((uint8_t*)&l + 0) = eeprom_read_byte((uint8_t*)(cAddress + 0));
*((uint8_t*)&l + 1) = eeprom_read_byte((uint8_t*)(cAddress + 1));
return l;
}
void MyEeprom::simple_write_uint(uint16_t l, uint16_t relative_address) {
cli();
while (!eeprom_is_ready());
if (eeprom_read_byte((uint8_t*)firstAddress) == P_INVALID) {
eeprom_write_byte((uint8_t*)firstAddress, P_VALID);
}
eeprom_write_byte((uint8_t*)firstAddress + servisInfo + relative_address + 0, *((uint8_t*)&l + 0));
eeprom_write_byte((uint8_t*)firstAddress + servisInfo + relative_address + 1, *((uint8_t*)&l + 1));
sei();
}
void MyEeprom::write_uint(uint16_t l, uint16_t relative_address) {
cli();
while (!eeprom_is_ready());
uint16_t pCurrentOffset = currentOffset;
if (firstAddress + (currentOffset + 1) * (dataLength + servisInfo) > maxAddress) {
currentOffset = 0;
} else { currentOffset++; }
uint8_t tb = 0;
int32_t currentNAddress = firstAddress + currentOffset * (dataLength + servisInfo) + servisInfo;
int32_t currentOAddress = firstAddress + pCurrentOffset * (dataLength + servisInfo) + servisInfo;
for (uint16_t i = 0; i < dataLength; i++) {
if (i == relative_address) {
eeprom_write_byte((uint8_t*)(currentNAddress + i + 0), *((uint8_t*)&l + 0));
eeprom_write_byte((uint8_t*)(currentNAddress + i + 1), *((uint8_t*)&l + 1));
i+=1;
} else {
tb = eeprom_read_byte((uint8_t*)(currentOAddress + i));
eeprom_write_byte((uint8_t*)(currentNAddress + i), tb);
}
}
eeprom_write_byte((uint8_t*)(firstAddress + currentOffset * (dataLength + servisInfo)), P_VALID);
eeprom_write_byte((uint8_t*)(firstAddress + pCurrentOffset * (dataLength + servisInfo)), P_INVALID);
sei();
}