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Feature: Implement TwoWire support for TEA5767 #76

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Feature: Implement TwoWire support for TEA5767 #76

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43 changes: 27 additions & 16 deletions src/TEA5767.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -76,16 +76,12 @@

// initialize the extra variables in SI4703
TEA5767::TEA5767() {
_i2cPort = &Wire; // DEFAULT: Point to the standard I2C bus.
_maxVolume = 1;
}

// initialize all internals.
bool TEA5767::init() {
bool result = false; // no chip found yet.
DEBUG_FUNC0("init");

RADIO::init(); // will create reset impulse

// new private helper method
void TEA5767::_init() {
registers[0] = 0x00;
registers[1] = 0x00;
registers[2] = 0xB0;
Expand All @@ -96,11 +92,27 @@ bool TEA5767::init() {
#else
registers[REG_5] = REG_5_DTC; // 75 ms Europe setup
#endif
Wire.begin();
}

return(result);
// initialize all internals.
bool TEA5767::init() {
bool result = false; // no chip found yet.
DEBUG_FUNC0("init");
RADIO::init(); // will create reset impulse
_i2cPort = &Wire;
_init();
return(_wireExists(_i2cPort, TEA5767_ADR));
} // init()

// ADDING THE NEW INIT FUNCTION
bool TEA5767::initWire(TwoWire &port) {
bool result = false;
DEBUG_FUNC0("initWire");
RADIO::init();
_i2cPort = &port;
_init();
return (_wireExists(_i2cPort, TEA5767_ADR));
}

// switch the power off
void TEA5767::term()
Expand Down Expand Up @@ -237,11 +249,11 @@ void TEA5767::seekDown(bool toNextSender) {
/// Load all status registers from to the chip
void TEA5767::_readRegisters()
{
Wire.requestFrom(TEA5767_ADR, 5); // We want to read all the 5 registers.
_i2cPort->requestFrom(TEA5767_ADR, 5); // We want to read all the 5 registers.

if (Wire.available()) {
if (_i2cPort->available()) {
for (uint8_t n = 0; n < 5; n++) {
status[n] = Wire.read();
status[n] = _i2cPort->read();
} // for
} // if
} // _readRegisters
Expand All @@ -251,12 +263,12 @@ void TEA5767::_readRegisters()
// using the sequential write access mode.
void TEA5767::_saveRegisters()
{
Wire.beginTransmission(TEA5767_ADR);
_i2cPort->beginTransmission(TEA5767_ADR);
for (uint8_t n = 0; n < sizeof(registers); n++) {
Wire.write(registers[n]);
_i2cPort->write(registers[n]);
} // for

byte ack = Wire.endTransmission();
byte ack = _i2cPort->endTransmission();
if (ack != 0) { //We have a problem!
Serial.print("Write Fail:"); //No ACK!
Serial.println(ack, DEC); //I2C error: 0 = success, 1 = data too long, 2 = rx NACK on address, 3 = rx NACK on data, 4 = other error
Expand Down Expand Up @@ -313,4 +325,3 @@ void TEA5767::_waitEnd() {

// The End.


6 changes: 5 additions & 1 deletion src/TEA5767.h
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Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,8 @@ class TEA5767 : public RADIO {
TEA5767();

bool init(); // initialize library and the chip.
void term(); // terminate all radio functions.
bool initWire(TwoWire &port) override; // ADDING THIS NEW INIT FUNCTION
void term() override; // terminate all radio functions UPDATED FOR OVERRIDING.

// Control of the audio features

Expand Down Expand Up @@ -91,6 +92,9 @@ class TEA5767 : public RADIO {

void _seek(bool seekUp = true);
void _waitEnd();

// ----- private helper methods needed
void _init();
};

#endif