493 lines
14 KiB
C++
493 lines
14 KiB
C++
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#include "hciemulator.h"
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#include "Arduino.h"
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#define CHECKCHANGEDSET(Target, Value, Flag) \
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if ((Target) != (Value)) \
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{ \
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Target = Value; \
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Flag = true; \
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}
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int hciloglevel = LL_DEBUG;
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#define SOFTSERIAL 1
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#ifdef SOFTSERIAL
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#define Log(Level, Message) LogCore(Level, Message)
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#define Log3(Level, Message, Buffer, Len) LogCore(Level, Message, Buffer, Len)
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// LOGLEVEL
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void LogCore(int Level, const char *msg, const unsigned char *data = NULL, size_t datalen = 0)
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{
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if (Level > hciloglevel)
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{
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return;
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}
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if (data != NULL && datalen > 0)
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{
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String newmsg(msg);
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char str[4];
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for (size_t i = 0; i < datalen; i++)
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{
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snprintf(str, sizeof(str), "%02x ", data[i]);
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newmsg += str;
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}
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Serial.println(newmsg);
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}
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else
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{
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Serial.println(msg);
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}
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}
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#else
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#define Log(Level, Message)
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#define Log3(Level, Message, Buffer, Len)
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#endif
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int HCIEmulator::getLogLevel()
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{
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return hciloglevel;
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}
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void HCIEmulator::setLogLevel(int level)
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{
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hciloglevel = level;
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}
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// modbus crc calculation borrowed from:
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// https://github.com/yaacov/ArduinoModbusSlave
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#define MODBUS_CRC_LENGTH 2
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#define readCRC(arr, length) word(arr[(length - MODBUS_CRC_LENGTH) + 1], arr[length - MODBUS_CRC_LENGTH])
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#define readUInt16(arr, index) word(arr[index], arr[index + 1])
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/**
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* Calculate the CRC of the passed byte array from zero up to the passed length.
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*
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* @param buffer The byte array containing the data.
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* @param length The length of the byte array.
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*
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* @return The calculated CRC as an unsigned 16 bit integer.
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*
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* Calculate and add the CRC.
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* uint16_t crc = Modbus::calculateCRC(_responseBuffer, _responseBufferLength - MODBUS_CRC_LENGTH);
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* _responseBuffer[_responseBufferLength - MODBUS_CRC_LENGTH] = crc & 0xFF;
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* _responseBuffer[(_responseBufferLength - MODBUS_CRC_LENGTH) + 1] = crc >> 8;
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*
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*
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* #define MODBUS_FRAME_SIZE 4
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* #define MODBUS_CRC_LENGTH 2
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* uint16_t crc = readCRC(_requestBuffer, _requestBufferLength);
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* #define readUInt16(arr, index) word(arr[index], arr[index + 1])
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* #define readCRC(arr, length) word(arr[(length - MODBUS_CRC_LENGTH) + 1], arr[length - MODBUS_CRC_LENGTH])
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*/
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uint16_t calculateCRC(uint8_t *buffer, int length)
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{
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int i, j;
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uint16_t crc = 0xFFFF;
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uint16_t tmp;
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// Calculate the CRC.
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for (i = 0; i < length; i++)
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{
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crc = crc ^ buffer[i];
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for (j = 0; j < 8; j++)
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{
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tmp = crc & 0x0001;
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crc = crc >> 1;
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if (tmp)
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{
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crc = crc ^ 0xA001;
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}
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}
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}
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return crc;
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}
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HCIEmulator::HCIEmulator()
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{
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m_state.valid = false;
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m_statemachine = WAITING;
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m_rxlen = m_txlen = 0;
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m_recvTime = m_lastStateTime = 0;
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m_skipFrame = false;
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m_port = &Serial2;
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m_statusCallback = NULL;
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setLogLevel(DEFAULTLOGLEVEL);
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};
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#define TX_ON 25
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void HCIEmulator::poll()
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{
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if (m_port == NULL)
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return;
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// receive Data
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if (m_port->available() > 0)
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{
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// Serial.println("got data");
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m_rxlen += m_port->readBytes((char *)(m_rxbuffer + m_rxlen), _min((int)(255 - m_rxlen), m_port->available()));
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if (m_rxlen > 254)
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{
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Log(LL_ERROR, "RX Bufferoverflow, skip next Frame");
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Log3(LL_DEBUG, "Buffer Data: ", m_rxbuffer, m_rxlen);
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m_rxlen = 0;
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m_skipFrame = true;
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}
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m_recvTime = micros();
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}
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// Serial.printf("Data % x\n", m_txbuffer);
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// check frame, process frame
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if (m_rxlen > 0 && (micros() - m_recvTime > T3_5))
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{
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// Serial.printf("Act on it % x\n", m_txbuffer);
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// check last action timeout -> reset > then 2sec
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if (m_statemachine != WAITING && m_lastStateTime + 2000 < millis())
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{
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m_statemachine = WAITING;
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}
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if (!m_skipFrame)
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{
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processFrame();
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// send response
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if (m_txlen > 0)
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{
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// fix crc
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uint16_t crc = calculateCRC(m_txbuffer, m_txlen - MODBUS_CRC_LENGTH);
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m_txbuffer[m_txlen - MODBUS_CRC_LENGTH] = crc & 0xFF;
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m_txbuffer[(m_txlen - MODBUS_CRC_LENGTH) + 1] = crc >> 8;
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// send data
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m_lastSendTime = micros() - m_recvTime;
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// Log(LL_DEBUG, ("ST:"+String(m_lastSendTime)).c_str());
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digitalWrite(TX_ON, HIGH);
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// Log3(LL_DEBUG, "write data: ");
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m_port->write(m_txbuffer, m_txlen);
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Log3(LL_DEBUG, "Response: ", m_txbuffer, m_txlen);
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delayMicroseconds(m_txlen * 9 * 22); // 8 bits + par * Bittime 18 micros on 57600 bauds
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digitalWrite(TX_ON, LOW);
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m_txlen = 0;
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}
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}
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else
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{
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Serial.println("skipped frame");
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}
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m_skipFrame = false;
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m_rxlen = 0;
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}
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}
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void HCIEmulator::processFrame()
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{
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m_txlen = 0; // clear send buffer
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if (m_rxlen < 5)
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{
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Log(LL_ERROR, "Frame skipped, invalid frame len");
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Log3(LL_ERROR, "Data:", m_rxbuffer, m_rxlen);
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return;
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}
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// check device id, pass only device id 2 and 0 (broadcast)
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if (m_rxbuffer[0] != BROADCASTID && m_rxbuffer[0] != DEVICEID)
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{
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Log(LL_DEBUG, "Frame skipped, unsupported device id");
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Log3(LL_DEBUG, "Data:", m_rxbuffer, m_rxlen);
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return;
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}
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// check crc
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uint16_t crc = readCRC(m_rxbuffer, m_rxlen);
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if (crc != calculateCRC(m_rxbuffer, m_rxlen - MODBUS_CRC_LENGTH))
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{
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Log3(LL_ERROR, "Frame skipped, wrong crc", m_rxbuffer, m_rxlen);
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return;
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}
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Log3(LL_DEBUG, "Incomming Data: ", m_rxbuffer, m_rxlen);
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// dispatch modbus function
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switch (m_rxbuffer[1])
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{
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case 0x10:
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{ // Write Multiple registers
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if (m_rxlen == 0x1b && m_rxbuffer[0] == BROADCASTID)
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{
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processBroadcastStatusFrame();
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return;
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}
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break;
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}
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case 0x17:
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{ // Read/Write Multiple registers
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if (m_rxbuffer[0] == DEVICEID)
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{
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switch (m_rxlen)
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{
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case 0x11:
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{
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processDeviceStatusFrame();
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return;
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}
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case 0x13:
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processDeviceBusScanFrame();
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return;
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;
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}
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}
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break;
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}
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}
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Log3(LL_ERROR, "Frame skipped, unexpected data: ", m_rxbuffer, m_rxlen);
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}
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const unsigned char ResponseTemplate_Fcn17_Cmd03_L08[] = {0x02, 0x17, 0x10, 0x3E, 0x00, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x74, 0x1B};
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const unsigned char ResponseTemplate_Fcn17_Cmd04_L02[] = {0x02, 0x17, 0x04, 0x0F, 0x00, 0x04, 0xFD, 0x0A, 0x72};
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void HCIEmulator::processDeviceStatusFrame()
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{
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if (m_rxlen == 0x11)
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{
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unsigned char counter = m_rxbuffer[11];
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unsigned char cmd = m_rxbuffer[12];
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if (m_rxbuffer[5] == 0x08)
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{
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// expose internal state
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// 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16
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// 0011: 02 17 9C B9 00 08 9C 41 00 02 04 3E 03 00 00 EB CC
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// res=> 02 17 10 3E 00 03 01 00 00 00 00 00 00 00 00 00 00 00 00 74 1B
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memcpy(m_txbuffer, ResponseTemplate_Fcn17_Cmd03_L08, sizeof(ResponseTemplate_Fcn17_Cmd03_L08));
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m_txbuffer[0] = m_rxbuffer[0];
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m_txbuffer[3] = counter;
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m_txbuffer[5] = cmd;
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m_txlen = sizeof(ResponseTemplate_Fcn17_Cmd03_L08);
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switch (m_statemachine)
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{
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// open Door
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case STARTOPENDOOR:
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m_txbuffer[7] = 0x02;
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m_txbuffer[8] = 0x10;
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m_statemachine = STARTOPENDOOR_RELEASE;
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m_lastStateTime = millis();
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break;
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case STARTOPENDOOR_RELEASE:
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if (m_lastStateTime + SIMULATEKEYPRESSDELAYMS < millis())
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{
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m_txbuffer[7] = 0x01;
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m_txbuffer[8] = 0x10;
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m_statemachine = WAITING;
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}
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break;
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// close Door
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case STARTCLOSEDOOR:
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m_txbuffer[7] = 0x02;
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m_txbuffer[8] = 0x20;
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m_statemachine = STARTCLOSEDOOR_RELEASE;
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m_lastStateTime = millis();
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break;
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case STARTCLOSEDOOR_RELEASE:
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if (m_lastStateTime + SIMULATEKEYPRESSDELAYMS < millis())
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{
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m_txbuffer[7] = 0x01;
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m_txbuffer[8] = 0x20;
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m_statemachine = WAITING;
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}
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break;
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// stop Door
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case STARTSTOPDOOR:
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m_txbuffer[7] = 0x02;
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m_txbuffer[8] = 0x40;
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m_statemachine = STARTSTOPDOOR_RELEASE;
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m_lastStateTime = millis();
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break;
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case STARTSTOPDOOR_RELEASE:
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if (m_lastStateTime + SIMULATEKEYPRESSDELAYMS < millis())
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{
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m_txbuffer[7] = 0x01;
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m_txbuffer[8] = 0x40;
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m_statemachine = WAITING;
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}
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break;
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// Ventilation
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case STARTVENTPOSITION:
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m_txbuffer[7] = 0x02;
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m_txbuffer[9] = 0x40;
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m_statemachine = STARTVENTPOSITION_RELEASE;
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m_lastStateTime = millis();
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break;
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case STARTVENTPOSITION_RELEASE:
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if (m_lastStateTime + SIMULATEKEYPRESSDELAYMS < millis())
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{
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m_txbuffer[7] = 0x01;
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m_txbuffer[9] = 0x40;
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m_statemachine = WAITING;
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}
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break;
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// Half Position
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case STARTOPENDOORHALF:
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m_txbuffer[7] = 0x02;
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m_txbuffer[9] = 0x04;
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m_statemachine = STARTOPENDOORHALF_RELEASE;
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m_lastStateTime = millis();
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break;
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case STARTOPENDOORHALF_RELEASE:
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if (m_lastStateTime + SIMULATEKEYPRESSDELAYMS < millis())
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{
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m_txbuffer[7] = 0x01;
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m_txbuffer[9] = 0x04;
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m_statemachine = WAITING;
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}
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break;
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// Toggle Lamp
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case STARTTOGGLELAMP:
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m_txbuffer[7] = 0x10;
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m_txbuffer[9] = 0x02;
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m_statemachine = STARTTOGGLELAMP_RELEASE;
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m_lastStateTime = millis();
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break;
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case STARTTOGGLELAMP_RELEASE:
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if (m_lastStateTime + SIMULATEKEYPRESSDELAYMS < millis())
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{
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m_txbuffer[7] = 0x08;
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m_txbuffer[9] = 0x02;
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m_statemachine = WAITING;
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}
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break;
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case WAITING:
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break;
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}
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return;
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}
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else if (m_rxbuffer[5] == 0x02)
|
||
|
|
{
|
||
|
|
// 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16
|
||
|
|
// 0011: 02 17 9C B9 00 02 9C 41 00 02 04 0F 04 17 00 7B 21
|
||
|
|
// res=> 02 17 04 0F 00 04 FD 0A 72
|
||
|
|
memcpy(m_txbuffer, ResponseTemplate_Fcn17_Cmd04_L02, sizeof(ResponseTemplate_Fcn17_Cmd04_L02));
|
||
|
|
m_txbuffer[0] = m_rxbuffer[0];
|
||
|
|
m_txbuffer[3] = counter;
|
||
|
|
m_txbuffer[5] = cmd;
|
||
|
|
m_txlen = sizeof(ResponseTemplate_Fcn17_Cmd04_L02);
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
Log3(LL_ERROR, "Frame skipped, unexpected data: ", m_rxbuffer, m_rxlen);
|
||
|
|
}
|
||
|
|
|
||
|
|
const unsigned char ResponseTemplate_Fcn17_Cmd02_L05[] = {0x02, 0x17, 0x0a, 0x00, 0x00, 0x02, 0x05, 0x04, 0x30, 0x10, 0xff, 0xa8, 0x45, 0x0e, 0xdf};
|
||
|
|
void HCIEmulator::processDeviceBusScanFrame()
|
||
|
|
{
|
||
|
|
// 00 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16
|
||
|
|
// 0013: 02 17 9C B9 00 05 9C 41 00 03 06 00 02 00 00 01 02 f8 35
|
||
|
|
// res=> 02 17 0a 00 00 02 05 04 30 10 ff a8 45 0e df
|
||
|
|
unsigned char counter = m_rxbuffer[11];
|
||
|
|
unsigned char cmd = m_rxbuffer[12];
|
||
|
|
memcpy(m_txbuffer, ResponseTemplate_Fcn17_Cmd02_L05, sizeof(ResponseTemplate_Fcn17_Cmd02_L05));
|
||
|
|
m_txbuffer[0] = m_rxbuffer[0];
|
||
|
|
m_txbuffer[3] = counter;
|
||
|
|
m_txbuffer[5] = cmd;
|
||
|
|
m_txlen = sizeof(ResponseTemplate_Fcn17_Cmd02_L05);
|
||
|
|
|
||
|
|
Log(LL_INFO, "Busscan received");
|
||
|
|
}
|
||
|
|
|
||
|
|
void HCIEmulator::processBroadcastStatusFrame()
|
||
|
|
{
|
||
|
|
// 001B: 00 10 9D 31 00 09 12 64 00 00 00 40 60 00 00 00 00 00 00 00 00 00 01 00 00 CA 22
|
||
|
|
bool hasChanged = false;
|
||
|
|
CHECKCHANGEDSET(m_state.lampOn, m_rxbuffer[20] == 0x14, hasChanged);
|
||
|
|
CHECKCHANGEDSET(m_state.doorCurrentPosition, m_rxbuffer[10], hasChanged);
|
||
|
|
CHECKCHANGEDSET(m_state.doorTargetPosition, m_rxbuffer[9], hasChanged);
|
||
|
|
CHECKCHANGEDSET(m_state.doorState, m_rxbuffer[11], hasChanged);
|
||
|
|
CHECKCHANGEDSET(m_state.reserved, m_rxbuffer[17], hasChanged);
|
||
|
|
CHECKCHANGEDSET(m_state.valid, true, hasChanged);
|
||
|
|
|
||
|
|
if (hasChanged)
|
||
|
|
{
|
||
|
|
Log3(LL_INFO, "New State: ", m_rxbuffer, m_rxlen);
|
||
|
|
if (m_statusCallback != NULL)
|
||
|
|
{
|
||
|
|
m_statusCallback(m_state);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void HCIEmulator::openDoor()
|
||
|
|
{
|
||
|
|
if (m_statemachine != WAITING)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
m_lastStateTime = millis();
|
||
|
|
m_statemachine = STARTOPENDOOR;
|
||
|
|
}
|
||
|
|
|
||
|
|
void HCIEmulator::openDoorHalf()
|
||
|
|
{
|
||
|
|
if (m_statemachine != WAITING)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
m_lastStateTime = millis();
|
||
|
|
m_statemachine = STARTOPENDOORHALF;
|
||
|
|
}
|
||
|
|
|
||
|
|
void HCIEmulator::closeDoor()
|
||
|
|
{
|
||
|
|
if (m_statemachine != WAITING)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
m_lastStateTime = millis();
|
||
|
|
m_statemachine = STARTCLOSEDOOR;
|
||
|
|
}
|
||
|
|
|
||
|
|
void HCIEmulator::stopDoor()
|
||
|
|
{
|
||
|
|
if (m_statemachine != WAITING)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
m_lastStateTime = millis();
|
||
|
|
m_statemachine = STARTSTOPDOOR;
|
||
|
|
}
|
||
|
|
|
||
|
|
void HCIEmulator::toggleLamp()
|
||
|
|
{
|
||
|
|
if (m_statemachine != WAITING)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
m_lastStateTime = millis();
|
||
|
|
m_statemachine = STARTTOGGLELAMP;
|
||
|
|
}
|
||
|
|
|
||
|
|
void HCIEmulator::ventilationPosition()
|
||
|
|
{
|
||
|
|
if (m_statemachine != WAITING)
|
||
|
|
{
|
||
|
|
return;
|
||
|
|
}
|
||
|
|
m_lastStateTime = millis();
|
||
|
|
m_statemachine = STARTVENTPOSITION;
|
||
|
|
}
|
||
|
|
|
||
|
|
void HCIEmulator::onStatusChanged(callback_function_t handler)
|
||
|
|
{
|
||
|
|
m_statusCallback = handler;
|
||
|
|
}
|