void CodecController::setCodecMaster(bool master){
if(master){
clearRegister(POWER_DOWN_CONTROL_REGISTER, WM8731_OSCPD);
setRegister(DIGITAL_AUDIO_INTERFACE_FORMAT_REGISTER, WM8731_MS);
}else{
setRegister(POWER_DOWN_CONTROL_REGISTER, WM8731_OSCPD);
clearRegister(DIGITAL_AUDIO_INTERFACE_FORMAT_REGISTER, WM8731_MS);
}
}
void CodecController::setActive(bool active){
/* It is recommended that between changing any content of Digital Audio Interface or Sampling Control Register that the active bit is reset then set. */
if(active){
/* OUTPD should be set AFTER active control, but that seems to hang the codec */
clearRegister(POWER_DOWN_CONTROL_REGISTER, WM8731_OUTPD);
setRegister(ACTIVE_CONTROL_REGISTER, WM8731_ACTIVE);
}else{
setRegister(POWER_DOWN_CONTROL_REGISTER, WM8731_OUTPD);
clearRegister(ACTIVE_CONTROL_REGISTER, WM8731_ACTIVE);
}
}
void Shift::setRegister(uint8_t val)
{
//Initialize
disableOutput();
clearRegister();
uint8_t high_bit = 1;
//Shift values in
for(int i=0; i<8; i++){
if(val & high_bit)
digitalWrite(SR_INPUT_PIN, HIGH);
else
digitalWrite(SR_INPUT_PIN, LOW);
shiftOnce();
high_bit = (high_bit << 1);
}
//Send it out
shiftOnce();
enableOutput();
m_current_val = val;
}
void CodecController::setSwapLeftRight(bool swap){
if(swap)
setRegister(DIGITAL_AUDIO_INTERFACE_FORMAT_REGISTER, WM8731_LRSWAP);
else
clearRegister(DIGITAL_AUDIO_INTERFACE_FORMAT_REGISTER, WM8731_LRSWAP);
}
void CodecController::setOutputMuteRight(bool mute){
if(mute)
setRegister(RIGHT_HEADPHONE_OUT_REGISTER, WM8731_HPVOL_MUTE);
else
clearRegister(RIGHT_HEADPHONE_OUT_REGISTER, WM8731_HPVOL_MUTE);
}
void CodecController::setInputMuteRight(bool mute){
if(mute)
setRegister(RIGHT_LINE_IN_REGISTER, WM8731_INMUTE);
else
clearRegister(RIGHT_LINE_IN_REGISTER, WM8731_INMUTE);
}
void CodecController::softMute(bool mute){
if(mute)
setRegister(DIGITAL_AUDIO_PATH_CONTROL_REGISTER, WM8731_DACMU);
else
clearRegister(DIGITAL_AUDIO_PATH_CONTROL_REGISTER, WM8731_DACMU);
}
