/**
* @private
* Try to verify if the char is a filtered char or not
* @return true if it was filtered (=> buffer first char will be removed), false else
*/
bool filterFirstNextChar(Buffer* inputBuffer, filterCharFunction* inputFilterChar) {
// read the first char (but do not pop from the FIFO)
char deviceHeader = bufferGetCharAtIndex(inputBuffer, DEVICE_HEADER_INDEX);
if (inputFilterChar != NULL) {
if (!inputFilterChar(deviceHeader, &deviceHeader)) {
// remove the char from the buffer
bufferReadChar(inputBuffer);
return true;
}
}
return false;
}
/**
* Implementation of the write Function of the 24C512 chip.
* @see eeprom.h
* @private
*/
void _writeEeprom24C512Block (Eeprom* eeprom_, unsigned long index, unsigned int length, Buffer* buffer) {
I2cBusConnection* i2cBusConnection = _24c512GetI2cBusConnection(eeprom_);
I2cBus* i2cBus = i2cBusConnection->i2cBus;
int blockAddress = get24C512BlockAddress(index);
int address = get24C512Address(index);
portableMasterWaitSendI2C(i2cBusConnection);
portableMasterStartI2C(i2cBusConnection);
WaitI2C(i2cBus);
portableMasterWriteI2C(i2cBusConnection, blockAddress);
WaitI2C(i2cBus);
portableMasterWriteI2C(i2cBusConnection, address);
WaitI2C(i2cBus);
int i;
for (i = 0; i <(length) ; i++) {
char c = bufferReadChar(buffer);
portableMasterWriteI2C(i2cBusConnection, c);
WaitI2C(i2cBus);
}
portableMasterStopI2C(i2cBusConnection);
WaitI2C(i2cBus);
}
void printBuffer(OutputStream* outputStream, Buffer* buffer) {
while(!isBufferEmpty(buffer)) {
unsigned char c = bufferReadChar(buffer);
append(outputStream, c);
}
}
/**
* @private
*/
char _bufferReadChar(InputStream* inputStream) {
Buffer* buffer = (Buffer*) inputStream->object;
char result = bufferReadChar(buffer);
return result;
}
/**
* Be aware not to read before call to "availableDataFunction"
* @private
*/
char _readCharI2C(InputStream* inputStream) {
Buffer* buffer = _i2cMasterInputStreamGetBuffer(inputStream);
return bufferReadChar(buffer);
}
