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https://github.com/DCC-EX/CommandStation-EX.git
synced 2024-12-24 13:21:23 +01:00
Preliminary working version of I2CDFPlayer
Working, need some endurance testing and testing at scale
This commit is contained in:
kempe63
parent
22b066c400
commit
44ce1c0cfa
124
IO_I2CDFPlayer.h
124
IO_I2CDFPlayer.h
@ -100,6 +100,8 @@ private:
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uint8_t _requestedVolumeLevel = MAXVOLUME;
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uint8_t _currentVolume = MAXVOLUME;
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int _requestedSong = -1; // -1=none, 0=stop, >0=file number
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uint8_t _repeat;
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uint8_t _previousCmd = true;
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// SC16IS752 defines
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I2CAddress _I2CAddress;
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I2CRB _rb;
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@ -113,6 +115,7 @@ private:
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uint8_t PRESCALER = 0x01; // Value MCR bit 7
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uint8_t TEMP_REG_VAL = 0x00;
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uint8_t FIFO_RX_LEVEL = 0x00;
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uint8_t RX_BUFFER = 0x00; // nr of bytes copied into _inbuffer
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uint8_t FIFO_TX_LEVEL = 0x00;
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uint8_t _outbuffer [11]; // DFPlayer command is 10 bytes + 1 byte register address & UART channel
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uint8_t _inbuffer[10]; // expected DFPlayer return 10 bytes
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@ -128,9 +131,7 @@ public:
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_I2CAddress = i2cAddress;
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_UART_CH = UART_CH;
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addDevice(this);
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}
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public:
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static void create(VPIN firstVpin, int nPins, I2CAddress i2cAddress, uint8_t UART_CH) {
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@ -140,7 +141,7 @@ public:
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void _begin() override {
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// check if SC16IS752 exist first, initialize and then resume DFPlayer init via SC16IS752
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I2CManager.begin();
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//I2CManager.setClock(1000000);
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I2CManager.setClock(1000000);
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if (I2CManager.exists(_I2CAddress)){
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DIAG(F("SC16IS752 I2C:%s UART detected"), _I2CAddress.toString());
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Init_SC16IS752(); // Initialize UART
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@ -158,45 +159,71 @@ public:
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_deviceState = DEVSTATE_INITIALISING;
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sendPacket(0x42);
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_timeoutTime = micros() + 5000000UL; // 5 second timeout
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//_timeoutTime = micros() + 10000000UL; // 5 second timeout
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_awaitingResponse = true;
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_awaitingResponse = true;
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}
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void _loop(unsigned long currentMicros) override {
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// Read responses from device
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processIncoming();
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// Check if a command sent to device has timed out. Allow 0.5 second for response
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if (_awaitingResponse && (int32_t)(currentMicros - _timeoutTime) > 0) {
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DIAG(F("I2CDFPlayer:%s, DFPlayer not responding on UART channel: 0x%x"), _I2CAddress.toString(), _UART_CH);
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_deviceState = DEVSTATE_FAILED;
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_awaitingResponse = false;
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_playing = false;
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uint8_t status = _rb.status;
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if (status == I2C_STATUS_PENDING) return; // Busy, so don't do anything
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if (status == I2C_STATUS_OK) {
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processIncoming(currentMicros);
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// Check if a command sent to device has timed out. Allow 0.5 second for response
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if (_awaitingResponse && (int32_t)(currentMicros - _timeoutTime) > 0) {
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DIAG(F("I2CDFPlayer:%s, DFPlayer not responding on UART channel: 0x%x"), _I2CAddress.toString(), _UART_CH);
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_deviceState = DEVSTATE_FAILED;
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_awaitingResponse = false;
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_playing = false;
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}
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}
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// Send any commands that need to go.
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processOutgoing(currentMicros);
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delayUntil(currentMicros + 10000); // Only enter every 10ms
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status = _rb.status;
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if (status == I2C_STATUS_PENDING) return; // Busy, try next time
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if (status == I2C_STATUS_OK) {
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// Send any commands that need to go.
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processOutgoing(currentMicros);
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}
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delayUntil(currentMicros + 10000); // Only enter every 10ms
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}
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// Check for incoming data on _serial, and update busy flag and other state accordingly
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void processIncoming() {
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void processIncoming(unsigned long currentMicros) {
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// Expected message is in the form "7E FF 06 3D xx xx xx xx xx EF"
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RX_fifo_lvl();
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if (FIFO_RX_LEVEL >= 10) {
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#ifdef DIAG_I2CDFplayer
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DIAG(F("I2CDFPlayer: %s Retrieving data from RX Fifo on UART_CH: 0x%x"),_I2CAddress.toString(), _UART_CH);
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DIAG(F("I2CDFPlayer: %s Retrieving data from RX Fifo on UART_CH: 0x%x FIFO_RX_LEVEL: %d"),_I2CAddress.toString(), _UART_CH, FIFO_RX_LEVEL);
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#endif
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ReceiveI2CData();
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_outbuffer[0] = REG_RHR << 3 | _UART_CH << 1;
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// Only copy 10 bytes from RX FIFO, there maybe additional partial return data after a track is finished playing in the RX FIFO
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I2CManager.read(_I2CAddress, _inbuffer, 10, _outbuffer, 1); // inbuffer[] has the data now
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//delayUntil(currentMicros + 10000); // Allow time to get the data
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RX_BUFFER = 10; // We have copied 10 bytes from RX FIFO to _inbuffer
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#ifdef DIAG_I2CDFplayer_data
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DIAG(F("SC16IS752: At I2C: %s, UART channel: 0x%x, RX FIFO Data"), _I2CAddress.toString(), _UART_CH);
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for (int i = 0; i < sizeof _inbuffer; i++){
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DIAG(F("SC16IS752: Data _inbuffer[0x%x]: 0x%x"), i, _inbuffer[i]);
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}
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#endif
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} else {
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return; // No data or not enough data in rx fifo, check again next time around
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FIFO_RX_LEVEL = 0; //set to 0, we'll read a fresh FIFO_RX_LEVEL next time
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return; // No data or not enough data in rx fifo, check again next time around
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}
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/*
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#ifdef DIAG_I2CDFplayer
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if (FIFO_RX_LEVEL > 10) {
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DIAG(F("I2CDFPlayer: %s FIFO_RX_LEVEL: %d"),_I2CAddress.toString(), FIFO_RX_LEVEL);
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}
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#endif
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*/
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bool ok = false;
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while (FIFO_RX_LEVEL != 0) {
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//DIAG(F("I2CDFPlayer: RX_BUFFER: %d"), RX_BUFFER);
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while (RX_BUFFER != 0) {
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int c = _inbuffer[_inputIndex]; // Start at 0, increment to FIFO_RX_LEVEL
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switch (_inputIndex) {
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case 0:
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@ -214,6 +241,7 @@ public:
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break;
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case 6:
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switch (_recvCMD) {
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DIAG(F("I2CDFPlayer: %s, _recvCMD: 0x%x _awaitingResponse: 0x0%x"),_I2CAddress.toString(), _recvCMD, _awaitingResponse);
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case 0x42:
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// Response to status query
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_playing = (c != 0);
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@ -229,7 +257,7 @@ public:
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}
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_awaitingResponse = false;
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break;
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case 0x3d:
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case 0x3d:
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// End of play
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if (_playing) {
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#ifdef DIAG_IO
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@ -259,12 +287,13 @@ public:
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}
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if (ok){
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_inputIndex++; // character as expected, so increment index
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FIFO_RX_LEVEL --; // Decrease FIFO_RX_LEVEL with each character read from _inbuffer[_inputIndex]
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RX_BUFFER --; // Decrease FIFO_RX_LEVEL with each character read from _inbuffer[_inputIndex]
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} else {
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_inputIndex = 0; // otherwise reset.
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FIFO_RX_LEVEL = 0;
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RX_BUFFER = 0;
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}
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}
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RX_BUFFER = 0; //Set to 0, we'll read a new RX FIFO level again
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}
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// Send any commands that need to be sent
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@ -273,7 +302,7 @@ public:
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// execute one. Testing has indicated that a delay of 100ms or more is required
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// between successive commands to get reliable operation.
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// If 100ms has elapsed since the last thing sent, then check if there's some output to do.
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if (((int32_t)currentMicros - _commandSendTime) > 100000) {
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if (((int32_t)currentMicros - _commandSendTime) > 100000) {
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if (_currentVolume > _requestedVolumeLevel) {
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// Change volume before changing song if volume is reducing.
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_currentVolume = _requestedVolumeLevel;
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@ -281,7 +310,7 @@ public:
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} else if (_requestedSong > 0) {
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// Change song
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sendPacket(0x03, _requestedSong);
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_requestedSong = -1;
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_requestedSong = -1;
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} else if (_requestedSong == 0) {
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sendPacket(0x16); // Stop playing
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_requestedSong = -1;
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@ -298,7 +327,7 @@ public:
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_awaitingResponse = true;
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}
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}
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}
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}
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}
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// Write with value 1 starts playing a song. The relative pin number is the file number.
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@ -328,23 +357,27 @@ public:
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// If value is zero, the player stops playing.
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// WriteAnalogue on second pin sets the output volume.
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//
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void _writeAnalogue(VPIN vpin, int value, uint8_t volume=0, uint16_t=0) override {
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//void _writeAnalogue(VPIN vpin, int value, uint8_t volume=0, uint16_t=0) override {
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void _writeAnalogue(VPIN vpin, int value, uint8_t volume=0, uint16_t cmd=0) override {
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if (_deviceState == DEVSTATE_FAILED) return;
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uint8_t pin = vpin - _firstVpin;
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#ifdef DIAG_IO
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DIAG(F("I2CDFPlayer: VPIN:%u FileNo:%d Volume:%d"), vpin, value, volume);
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DIAG(F("I2CDFPlayer: VPIN:%u FileNo:%d Volume:%d Repeat:0x0%x"), vpin, value, volume, cmd);
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#endif
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// Validate parameter.
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if (volume > MAXVOLUME) volume = MAXVOLUME;
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if (pin == 0) {
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// Play track
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// Play track
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if (value > 0) {
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if (volume > 0)
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_requestedVolumeLevel = volume;
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_requestedSong = value;
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if (cmd = 1){ // check for Repeat playback of song
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_repeat = true;
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} else {
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_repeat = false;
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}
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_playing = true;
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} else {
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_requestedSong = 0; // stop playing
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@ -410,8 +443,8 @@ private:
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TX_fifo_lvl();
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if(FIFO_TX_LEVEL > 0){ //FIFO is empty
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//I2CManager.write(_I2CAddress, _outbuffer, sizeof(_outbuffer), &_rb);
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I2CManager.write(_I2CAddress, _outbuffer, sizeof(_outbuffer));
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I2CManager.write(_I2CAddress, _outbuffer, sizeof(_outbuffer), &_rb);
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//I2CManager.write(_I2CAddress, _outbuffer, sizeof(_outbuffer));
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#ifdef DIAG_I2CDFplayer
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DIAG(F("SC16IS752: I2C: %s data transmit complete on UART: 0x%x"), _I2CAddress.toString(), _UART_CH);
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#endif
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@ -472,13 +505,13 @@ private:
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TEMP_REG_VAL = _inbuffer[0] & 0x7F; // Disable Divisor latch enabled bit
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UART_WriteRegister(REG_LCR, TEMP_REG_VAL); // Divisor latch disabled
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uint8_t status = _rb.wait();
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uint8_t status = _rb.status;
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if (status != I2C_STATUS_OK) {
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DIAG(F("SC16IS752: I2C: %s failed %S"), _I2CAddress.toString(), I2CManager.getErrorMessage(status));
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_deviceState = DEVSTATE_FAILED;
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} else {
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#ifdef DIAG_IO
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DIAG(F("SC16IS752: I2C: %s, _deviceState == I2C_STATUS_OK"), _I2CAddress.toString());
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DIAG(F("SC16IS752: I2C: %s, _deviceState: %S"), _I2CAddress.toString(), I2CManager.getErrorMessage(status));
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#endif
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_deviceState = DEVSTATE_NORMAL; // If I2C state is OK, then proceed to initialize DFPlayer
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}
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@ -493,7 +526,7 @@ private:
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FIFO_RX_LEVEL = _inbuffer[0];
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#ifdef DIAG_I2CDFplayer
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if (FIFO_RX_LEVEL > 0){
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DIAG(F("SC16IS752: At I2C: %s, UART channel: 0x%x, RX FIFO Level: 0d%d"), _I2CAddress.toString(), _UART_CH, _inbuffer[0]);
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// DIAG(F("SC16IS752: At I2C: %s, UART channel: 0x%x, FIFO_RX_LEVEL: 0d%d"), _I2CAddress.toString(), _UART_CH, _inbuffer[0]);
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}
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#endif
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}
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@ -506,25 +539,10 @@ private:
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UART_ReadRegister(REG_TXLV);
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FIFO_TX_LEVEL = _inbuffer[0];
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#ifdef DIAG_I2CDFplayer
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DIAG(F("SC16IS752: At I2C: %s, UART channel: 0x%x, TX FIFO Level: 0d%d"), _I2CAddress.toString(), _UART_CH, FIFO_TX_LEVEL);
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// DIAG(F("SC16IS752: At I2C: %s, UART channel: 0x%x, FIFO_TX_LEVEL: 0d%d"), _I2CAddress.toString(), _UART_CH, FIFO_TX_LEVEL);
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#endif
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}
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// Read from RX FIFO, we know the register REG_RHR
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void ReceiveI2CData(){
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//_inbuffer[0] = 0x00;
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_outbuffer[0] = REG_RHR << 3 | _UART_CH << 1;
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//I2CManager.read(_I2CAddress, _inbuffer, FIFO_RX_LEVEL, _outbuffer, 1, &_rb); // inbuffer[] has the data now
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I2CManager.read(_I2CAddress, _inbuffer, FIFO_RX_LEVEL, _outbuffer, 1); // _inbuffer[] has the data now
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#ifdef DIAG_I2CDFplayer_data
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DIAG(F("SC16IS752: At I2C: %s, UART channel: 0x%x, RX FIFO Data"), _I2CAddress.toString(), _UART_CH);
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for (int i = 0; i < sizeof _inbuffer; i++){
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DIAG(F("SC16IS752: Data _inbuffer[0x%x]: 0x%x"), i, _inbuffer[i]);
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}
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#endif
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}
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//void UART_WriteRegister(I2CAddress _I2CAddress, uint8_t _UART_CH, uint8_t UART_REG, uint8_t Val, I2CRB &_rb){
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void UART_WriteRegister(uint8_t UART_REG, uint8_t Val){
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