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https://github.com/DCC-EX/CommandStation-EX.git
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Refactored, analogue tested
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@ -49,15 +49,12 @@
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*/
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class EXIOExpander : public IODevice {
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public:
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static void create(VPIN vpin, int nPins, uint8_t i2cAddress) {
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if (checkNoOverlap(vpin, nPins, i2cAddress)) new EXIOExpander(vpin, nPins, i2cAddress);
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static void create(VPIN vpin, int nPins, uint8_t i2cAddress) {
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if (checkNoOverlap(vpin, nPins, i2cAddress)) new EXIOExpander(vpin, nPins, i2cAddress);
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}
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private:
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// Constructor
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EXIOExpander(VPIN firstVpin, int nPins, uint8_t i2cAddress) {
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EXIOExpander(VPIN firstVpin, int nPins, uint8_t i2cAddress) {
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_firstVpin = firstVpin;
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_nPins = nPins;
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@ -80,28 +77,6 @@ private:
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_analoguePinBytes = _numAnaloguePins * 2;
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_analogueInputStates = (byte*) calloc(_analoguePinBytes, 1);
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_analoguePinMap = (uint8_t*) calloc(_numAnaloguePins, 1);
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} else {
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_command2Buffer[0] = EXIOINIT;
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_command2Buffer[1] = _nPins;
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// Send config, if EXIOINITA returned, we're good, setup analogue input buffer, otherwise go offline
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I2CManager.read(_i2cAddress, _receive2Buffer, 2, _command2Buffer, 2);
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if (_receive2Buffer[0] == EXIOINITA) {
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_numAnaloguePins = _receive2Buffer[1];
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_analoguePinBytes = _numAnaloguePins * 2;
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_analogueInputStates = (byte*) calloc(_analoguePinBytes, 1);
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_analoguePinMap = (uint8_t*) calloc(_numAnaloguePins, 1);
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} else {
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_command2Buffer[0] = EXIOINIT;
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_command2Buffer[1] = _nPins;
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// Send config, if EXIOINITA returned, we're good, setup analogue input buffer, otherwise go offline
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I2CManager.read(_i2cAddress, _receive3Buffer, 3, _command2Buffer, 2);
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if (_receive3Buffer[0] == EXIOINITA) {
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_numAnaloguePins = _receive3Buffer[1];
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_numPWMPins = _receive3Buffer[2];
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_analoguePinBytes = _numAnaloguePins * 2;
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_analogueInputStates = (byte*) calloc(_analoguePinBytes, 1);
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_analoguePinMap = (uint8_t*) calloc(_numAnaloguePins, 1);
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} else {
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DIAG(F("ERROR configuring EX-IOExpander device, I2C:x%x"), _i2cAddress);
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_deviceState = DEVSTATE_FAILED;
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@ -110,14 +85,9 @@ private:
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// We now need to retrieve the analogue pin map
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_command1Buffer[0] = EXIOINITA;
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I2CManager.read(_i2cAddress, _analoguePinMap, _numAnaloguePins, _command1Buffer, 1);
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// We now need to retrieve the analogue pin map
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_command1Buffer[0] = EXIOINITA;
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I2CManager.read(_i2cAddress, _analoguePinMap, _numAnaloguePins, _command1Buffer, 1);
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// Attempt to get version, if we don't get it, we don't care, don't go offline
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_command1Buffer[0] = EXIOVER;
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I2CManager.read(_i2cAddress, _versionBuffer, 3, _command1Buffer, 1);
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_command1Buffer[0] = EXIOVER;
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I2CManager.read(_i2cAddress, _versionBuffer, 3, _command1Buffer, 1);
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_majorVer = _versionBuffer[0];
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_minorVer = _versionBuffer[1];
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_patchVer = _versionBuffer[2];
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@ -135,26 +105,15 @@ private:
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// Digital input pin configuration, used to enable on EX-IOExpander device and set pullups if in use
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bool _configure(VPIN vpin, ConfigTypeEnum configType, int paramCount, int params[]) override {
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if (paramCount != 1) return false;
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bool pullup = params[0];
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int pin = vpin - _firstVpin;
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if (configType == CONFIGURE_INPUT) {
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bool pullup = params[0];
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_digitalOutBuffer[0] = EXIODPUP;
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_digitalOutBuffer[1] = pin;
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_digitalOutBuffer[2] = pullup;
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I2CManager.write(_i2cAddress, _digitalOutBuffer, 3);
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return true;
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} else if (configType == CONFIGURE_SERVO) {
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DIAG(F("Configure servo at pin %d"), (int)pin);
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for (int i = 0; i < paramCount; i++) {
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DIAG(F("Param %d is %x"), (int)i, params[i]);
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}
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return true;
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} else {
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return false;
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}
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_digitalOutBuffer[0] = EXIODPUP;
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_digitalOutBuffer[1] = pin;
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_digitalOutBuffer[2] = pullup;
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I2CManager.write(_i2cAddress, _digitalOutBuffer, 3);
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return true;
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}
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// Analogue input pin configuration, used to enable on EX-IOExpander device
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// Analogue input pin configuration, used to enable on EX-IOExpander device
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int _configureAnalogIn(VPIN vpin) override {
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int pin = vpin - _firstVpin;
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@ -203,7 +162,6 @@ private:
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}
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void _display() override {
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DIAG(F("EX-IOExpander I2C:x%x v%d.%d.%d Vpins %d-%d %S"),
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DIAG(F("EX-IOExpander I2C:x%x v%d.%d.%d Vpins %d-%d %S"),
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_i2cAddress, _majorVer, _minorVer, _patchVer,
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(int)_firstVpin, (int)_firstVpin+_nPins-1,
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@ -211,7 +169,7 @@ private:
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}
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uint8_t _i2cAddress;
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uint8_t _numAnaloguePins = 0;
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uint8_t _numAnaloguePins;
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byte _digitalOutBuffer[3];
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uint8_t _versionBuffer[3];
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uint8_t _majorVer = 0;
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@ -223,10 +181,6 @@ private:
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uint8_t _analoguePinBytes = 0;
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byte _command1Buffer[1];
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byte _command2Buffer[2];
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byte _receive3Buffer[3];
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uint8_t* _analoguePinMap;
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byte _command1Buffer[1];
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byte _command2Buffer[2];
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byte _receive2Buffer[2];
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uint8_t* _analoguePinMap;
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