mirror of
https://github.com/DCC-EX/CommandStation-EX.git
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74c5a974e2
Tested SC16IS750 (single channel UART) for compatibility Tested on PCA9548 mux Both successful
1223 lines
55 KiB
C++
1223 lines
55 KiB
C++
/*
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* © 2023, Neil McKechnie. All rights reserved.
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*
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* This file is part of DCC++EX API
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*
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* This is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* It is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
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*/
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/*
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* DFPlayer is an MP3 player module with an SD card holder. It also has an integrated
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* amplifier, so it only needs a power supply and a speaker.
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* This driver is a modified version of the IO_DFPlayer.h file
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* *********************************************************************************************
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*
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* 2023, Added NXP SC16IS752 I2C Dual UART to enable the DFPlayer connection over the I2C bus
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* The SC16IS752 has 64 bytes TX & RX FIFO buffer
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* First version without interrupts from I2C UART and only RX/TX are used, interrupts may not be
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* needed as the RX Fifo holds the reply
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*
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* 2024, Issue with using both UARTs simultaniously, the first configured in myHal.cpp seems to get
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* overwritten by the second configured.
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* Possible solution is to handle both uarts in the same IO_I2CDFPLayer.h file as it seems that I2CManager
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* is not able to disinguise the 2 UARTs as they have the same I2C address
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*
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* 2024-01-22: Taken sendpacket and associated code out of _begin(), let _loop() handle it, need testing
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*
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* myHall.cpp configuration syntax:
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*
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* I2CDFPlayer::create(1st vPin, vPins, I2C address, xtal);
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*
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* Parameters:
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* 1st vPin : First virtual pin that EX-Rail can control to play a sound, use PLAYSOUND command (alias of ANOUT)
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* vPins : Total number of virtual pins allocated (2 vPins are supported, one for each UART)
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* 1st vPin for UART 0, 2nd for UART 1
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* I2C Address : I2C address of the serial controller, in 0x format
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* xtal : 0 for 1,8432Mhz, 1 for 14,7456Mhz
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*
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*
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* The vPin is also a pin that can be read, it indicate if the DFPlayer has finished playing a track
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*
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*/
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#ifndef IO_I2CDFPlayer_h
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#define IO_I2CDFPlayer_h
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#include "IODevice.h"
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#include "I2CManager.h"
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#include "DIAG.h"
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// Debug and diagnostic defines, enable too many will result in slowing the driver
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//#define DIAG_I2CDFplayer
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//#define DIAG_I2CDFplayer_data
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//#define DIAG_I2CDFplayer_reg
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#define DIAG_I2CDFplayer_playing
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class I2CDFPlayer : public IODevice {
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private:
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// Common parameters
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const uint8_t MAXVOLUME=30;
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// Communication parameters for the DFPlayer are fixed at 8 bit, No parity, 1 stopbit
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uint8_t WORD_LEN = 0x03; // Value LCR bit 0,1
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uint8_t STOP_BIT = 0x00; // Value LCR bit 2
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uint8_t PARITY_ENA = 0x00; // Value LCR bit 3
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uint8_t PARITY_TYPE = 0x00; // Value LCR bit 4
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uint32_t BAUD_RATE = 9600;
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uint8_t PRESCALER = 0x01; // Value MCR bit 7
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uint8_t RETRYCOUNT_INIT = 0x3;
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unsigned long _sc16is752_xtal_freq;
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unsigned long SC16IS752_XTAL_FREQ_LOW = 1843200; // To support cheap eBay/AliExpress SC16IS752 boards
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unsigned long SC16IS752_XTAL_FREQ_HIGH = 14745600; // Support for higher baud rates, standard for modular EX-IO system
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uint8_t TEMP_REG_VAL = 0x00;
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uint8_t _inputIndex = 0;
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uint8_t _recvCMD; // Last received command code byte
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uint8_t _inbuffer[10]; // common buffer for processing data from DFPLayer
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uint8_t RX_BUFFER = 0x00; // nr of bytes copied into _inbuffer
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uint8_t status; // I2C status
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uint8_t _uartSent = _UART_1; // Last uart used to send packet
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// SC16IS752 defines
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I2CAddress _I2CAddress;
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I2CRB _rb;
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// Parameters and variables for UART 0
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uint8_t FIFO_RX_LEVEL_0 = 0x00;
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uint8_t FIFO_TX_LEVEL_0 = 0x00;
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uint8_t _UART_0 = 0x00;
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uint8_t _retryCounter_0 = RETRYCOUNT_INIT; // Max retries before timing out
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bool _playing_0 = false;
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uint8_t _deviceState_0 = DEVSTATE_NORMAL; // Devivce State for DFPLayer
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unsigned long _commandSendTime_0; // Time (us) that last transmit took place.
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unsigned long _timeoutTime_0;
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bool _awaitingResponse_0 = false;
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uint8_t _requestedVolumeLevel_0 = MAXVOLUME;
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uint8_t _currentVolume_0 = MAXVOLUME;
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int _requestedSong_0 = -1; // -1=none, 0=stop, >0=file number
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bool _repeat_0 = false; // audio file is repeat playing
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uint8_t _previousCmd_0 = true;
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bool _playCmd_0 = false;
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bool _volCmd_0 = false;
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bool _folderCmd_0 = false;
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uint8_t _requestedFolder_0 = 0x01; // default to folder 01
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uint8_t _currentFolder_0 = 0x01; // default to folder 01
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bool _repeatCmd_0 = false;
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bool _stopplayCmd_0 = false;
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bool _resetCmd_0 = false;
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bool _eqCmd_0 = false;
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uint8_t _requestedEQValue_0 = NORMAL;
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uint8_t _currentEQvalue_0 = NORMAL; // start equalizer value
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bool _daconCmd_0 = false;
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uint8_t _audioMixer_0 = 0x01; // Default to output amplifier 1
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bool _setamCmd_0 = false; // Set the Audio mixer channel
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uint8_t _outbuffer_0[11]; // DFPlayer command is 10 bytes + 1 byte register address & UART channel -- for UART 0
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uint8_t _inbuffer_0[10]; // expected DFPlayer return 10 bytes -- for UART 0
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// Parameters and variables for UART 1
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uint8_t FIFO_RX_LEVEL_1 = 0x00;
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uint8_t FIFO_TX_LEVEL_1 = 0x00;
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uint8_t _UART_1 = 0x01;
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uint8_t _retryCounter_1 = RETRYCOUNT_INIT; // Max retries before timing out
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bool _playing_1 = false;
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uint8_t _deviceState_1 = DEVSTATE_NORMAL; // Devivce State for DFPLayer
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unsigned long _commandSendTime_1; // Time (us) that last transmit took place.
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unsigned long _timeoutTime_1;
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bool _awaitingResponse_1 = false;
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uint8_t _requestedVolumeLevel_1 = MAXVOLUME;
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uint8_t _currentVolume_1 = MAXVOLUME;
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int _requestedSong_1 = -1; // -1=none, 0=stop, >0=file number
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bool _repeat_1 = false; // audio file is repeat playing
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uint8_t _previousCmd_1 = true;
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bool _playCmd_1 = false;
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bool _volCmd_1 = false;
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bool _folderCmd_1 = false;
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uint8_t _requestedFolder_1 = 0x01; // default to folder 01
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uint8_t _currentFolder_1 = 0x01; // default to folder 01
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bool _repeatCmd_1 = false;
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bool _stopplayCmd_1 = false;
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bool _resetCmd_1 = false;
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bool _eqCmd_1 = false;
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uint8_t _requestedEQValue_1 = NORMAL;
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uint8_t _currentEQvalue_1 = NORMAL; // start equalizer value
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bool _daconCmd_1 = false;
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uint8_t _audioMixer_1 = 0x01; // Default to output amplifier 1
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bool _setamCmd_1 = false; // Set the Audio mixer channel
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uint8_t _outbuffer_1[11]; // DFPlayer command is 10 bytes + 1 byte register address & UART channel -- for UART 1
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uint8_t _inbuffer_1[10]; // expected DFPlayer return 10 bytes -- for UART 1
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public:
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// Constructor
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I2CDFPlayer(VPIN firstVpin, int nPins, I2CAddress i2cAddress, uint8_t xtal){
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_firstVpin = firstVpin;
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_nPins = nPins;
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_I2CAddress = i2cAddress;
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if (xtal == 0){
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_sc16is752_xtal_freq = SC16IS752_XTAL_FREQ_LOW;
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} else { // should be 1
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_sc16is752_xtal_freq = SC16IS752_XTAL_FREQ_HIGH;
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}
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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 xtal) {
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if (checkNoOverlap(firstVpin, nPins, i2cAddress)) new I2CDFPlayer(firstVpin, nPins, i2cAddress, xtal);
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}
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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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if (I2CManager.exists(_I2CAddress)){
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DIAG(F("SC16IS752 I2C:%s UART detected"), _I2CAddress.toString());
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//***
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//*** Move call to Init_SC16IS752(_UART_0) to loop() experiment to use I2C non-blocking for init
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//***
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//Init_SC16IS752(_UART_0); // Initialize UART_0
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/ //*
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if (_deviceState_0 == DEVSTATE_FAILED){
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DIAG(F("SC16IS752 I2C:%s initialization failed, UART: %d"), _I2CAddress.toString(), _UART_0);
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}
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} else {
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DIAG(F("SC16IS752 I2C:%s UART not detected, UART: %d"), _I2CAddress.toString(), _UART_0);
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} // */
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#if defined(DIAG_IO)
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_display();
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#endif
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// Now init DFPlayer 0
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// Send a query to the device to see if it responds
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_deviceState_0 = DEVSTATE_INITIALISING; // _deviceState is for uart 0
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// if (status == I2C_STATUS_OK){
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//sendPacket(0x42,0,0,_UART_0); // take this out of _begin() and let _loop handle it
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//_timeoutTime_0 = micros() + 5000000UL; // 5 second timeout
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//_awaitingResponse_0 = true;
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// }
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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(_UART_1); // Initialize UART_1
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if (_deviceState_1 == DEVSTATE_FAILED){
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DIAG(F("SC16IS752 I2C:%s initialization failed, UART: %d"), _I2CAddress.toString(), _UART_1);
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}
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} else {
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DIAG(F("SC16IS752 I2C:%s UART not detected, UART: %d"), _I2CAddress.toString(), _UART_0);
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}
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#if defined(DIAG_IO)
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_display();
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#endif
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// Now init DFPlayer 1
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// Send a query to the device to see if it responds
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_deviceState_1 = DEVSTATE_INITIALISING; // _deviceState is for UART 1
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//if (status == I2C_STATUS_OK){
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// sendPacket(0x42,0,0,_UART_1); // take this out of _begin() and let _loop handle it
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//_timeoutTime_1 = micros() + 5000000UL; // 5 second timeout
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//_awaitingResponse_1 = true;
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// }
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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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uint8_t _uart;
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if(_rb.isBusy()) return;
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status = _rb.status;
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if (status == I2C_STATUS_OK) {
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_uart = _UART_0;
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processIncoming(currentMicros, _uart);
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// Check if a command sent to device has timed out. Allow 0.5 second for response
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// added retry counter, sometimes we do not sent keep alive due to other commands sent to DFPlayer
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if(_uart == _UART_0){
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if (_awaitingResponse_0 && (int32_t)(currentMicros - _timeoutTime_0) > 0) { // timeout triggered
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if(_retryCounter_0 == 0){ // retry counter out of luck, must take the device to failed state
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DIAG(F("I2CDFPlayer:%s, DFPlayer not responding on UART: %d"), _I2CAddress.toString(), _uart);
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_deviceState_0 = DEVSTATE_FAILED; // Fail uart 0
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_awaitingResponse_0 = false;
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_playing_0 = false;
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_retryCounter_0 = RETRYCOUNT_INIT;
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} else { // timeout and retry protection and recovery of corrupt data frames from DFPlayer
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#ifdef DIAG_I2CDFplayer_playing
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DIAG(F("I2CDFPlayer: %s, DFPlayer timout, retry counter_0: %d on UART: %d"), _I2CAddress.toString(), _retryCounter_0, _uart);
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#endif
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_timeoutTime_0 = currentMicros + 5000000UL; // Timeout if no response within 5 seconds// reset timeout
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_awaitingResponse_0 = false; // trigger sending a keep alive 0x42 in processOutgoing()
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_retryCounter_0 --; // decrement retry counter
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resetRX_fifo(_uart); // reset the RX fifo as it has corrupt data
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}
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}
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}
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_uart = _UART_1;
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processIncoming(currentMicros, _uart);
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// Check if a command sent to device has timed out. Allow 0.5 second for response
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// added retry counter, sometimes we do not sent keep alive due to other commands sent to DFPlayer
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if(_uart == _UART_1){
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if (_awaitingResponse_1 && (int32_t)(currentMicros - _timeoutTime_1) > 0) { // timeout triggered
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if(_retryCounter_1 == 0){ // retry counter out of luck, must take the device to failed state
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DIAG(F("I2CDFPlayer:%s, DFPlayer not responding on UART: %d"), _I2CAddress.toString(), _uart);
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_deviceState_1 = DEVSTATE_FAILED; // Fail uart 1
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_awaitingResponse_1 = false;
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_playing_1 = false;
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_retryCounter_1 = RETRYCOUNT_INIT;
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} else { // timeout and retry protection and recovery of corrupt data frames from DFPlayer
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#ifdef DIAG_I2CDFplayer_playing
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DIAG(F("I2CDFPlayer: %s, DFPlayer timout, retry counter_1: %d on UART: %d"), _I2CAddress.toString(), _retryCounter_1, _uart);
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#endif
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_timeoutTime_1 = currentMicros + 5000000UL; // Timeout if no response within 5 seconds// reset timeout
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_awaitingResponse_1 = false; // trigger sending a keep alive 0x42 in processOutgoing()
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_retryCounter_1 --; // decrement retry counter
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resetRX_fifo(_uart); // reset the RX fifo as it has corrupt data
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}
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}
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}
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}
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if(_rb.isBusy()) {
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#ifdef DIAG_I2CDFplayer_playing
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DIAG(F("I2CDFPlayer: %s, _rb.isBusy"), _I2CAddress.toString());
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#endif
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return; // I2C operation still ongoing return
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}
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status = _rb.status;
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if (status == I2C_STATUS_OK) {
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if(!_rb.isBusy()){ // not busy, save to sent data
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if (_uartSent == _UART_1){ // Previous sent was _UART_1, now sent _UART_0
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// #ifdef DIAG_I2CDFplayer_playing
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// DIAG(F("I2CDFPlayer: %s, sent uart 0"), _I2CAddress.toString());
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// #endif
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// Send any commands that need to go.
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// processOutgoing(currentMicros, _UART_0);
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_uartSent = _UART_0;
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} else {
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//#ifdef DIAG_I2CDFplayer_playing
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// DIAG(F("I2CDFPlayer: %s, sent uart 1"), _I2CAddress.toString());
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//#endif
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processOutgoing(currentMicros, _UART_1);
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_uartSent = _UART_1;
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}
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delayUntil(currentMicros + 10000); // Only enter every 10ms
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}
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}
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}
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// Check for incoming data, and update busy flag and other state accordingly
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void processIncoming(unsigned long currentMicros, uint8_t _uart) {
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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(_uart);
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if(_uart == _UART_0){ // Process uart 0
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if (FIFO_RX_LEVEL_0 >= 10) {
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#ifdef DIAG_I2CDFplayer
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DIAG(F("I2CDFPlayer: %s Retrieving data from RX Fifo on UART: %d, FIFO_RX_LEVEL_0: %d"),_I2CAddress.toString(), _uart, FIFO_RX_LEVEL_0);
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#endif
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_outbuffer_0[0] = REG_RHR << 3 | _uart << 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_0, 10, _outbuffer_0, 1); // inbuffer_0[] has the data now
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RX_BUFFER = 10; // We have copied 10 bytes from RX FIFO to _inbuffer_0
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#ifdef DIAG_I2CDFplayer_data
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DIAG(F("SC16IS752: I2C: %s, Receive data, RX FIFO Data, UART: %d"), _I2CAddress.toString(), _uart);
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for (int i = 0; i < sizeof _inbuffer_0; i++){
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DIAG(F("SC16IS752: Data _inbuffer_0[0x%x]: 0x%x"), i, _inbuffer_0[i]);
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}
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#endif
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} else { //RX fifo level less < 10, do nothing
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FIFO_RX_LEVEL_0 = 0; //set to 0, we'll read a fresh FIFO_RX_LEVEL_0 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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} else { // Process uart 1
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if (FIFO_RX_LEVEL_1 >= 10) {
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#ifdef DIAG_I2CDFplayer
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DIAG(F("I2CDFPlayer: %s Retrieving data from RX Fifo on UART: %d, FIFO_RX_LEVEL_1: %d"),_I2CAddress.toString(), _uart, FIFO_RX_LEVEL_1);
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#endif
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_outbuffer_1[0] = REG_RHR << 3 | _uart << 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_1, 10, _outbuffer_1, 1); // inbuffer_1[] has the data now
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RX_BUFFER = 10; // We have copied 10 bytes from RX FIFO to _inbuffer_1
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#ifdef DIAG_I2CDFplayer_data
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DIAG(F("SC16IS752: I2C: %s, Receive data, RX FIFO Data, UART: %d"), _I2CAddress.toString(), _uart);
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for (int i = 0; i < sizeof _inbuffer_1; i++){
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DIAG(F("SC16IS752: Data _inbuffer_1[0x%x]: 0x%x"), i, _inbuffer_1[i]);
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}
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#endif
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} else { //RX fifo level less < 10, do nothing
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FIFO_RX_LEVEL_1 = 0; //set to 0, we'll read a fresh FIFO_RX_LEVEL_1 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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// Tranfer _inbuffer_0 or _inbuffer_1 to _inbuffer (common buffer to process incomming frame from DFPLayer)
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// _inbuffer is used for both uarts
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if (_uart == _UART_0){
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for( int i = 0;i < sizeof _inbuffer_0; i++){
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_inbuffer[i] = _inbuffer_0[i];
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}
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} else if (_uart == _UART_1){
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for( int i = 0;i < sizeof _inbuffer_1; i++){
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_inbuffer[i] = _inbuffer_1[i];
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}
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}
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bool ok = false;
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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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if (c == 0x7E) ok = true; // Start flag
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break;
|
|
case 1:
|
|
if (c == 0xFF) ok = true; // Version
|
|
break;
|
|
case 2:
|
|
if (c== 0x06) ok = true; // Length
|
|
break;
|
|
case 3:
|
|
_recvCMD = c; // CMD byte
|
|
ok = true;
|
|
break;
|
|
case 6:
|
|
switch (_recvCMD) {
|
|
#ifdef DIAG_I2CDFplayer_data
|
|
if(_uart == _UART_0){
|
|
DIAG(F("I2CDFPlayer: %s, uart: %d, _recvCMD: 0x%x _awaitingResponse_0: 0x0%x"),_I2CAddress.toString(), _uart, _recvCMD, _awaitingResponse_0);
|
|
} else { // uart 1
|
|
DIAG(F("I2CDFPlayer: %s, uart: %d, _recvCMD: 0x%x _awaitingResponse_1: 0x0%x"),_I2CAddress.toString(), _uart, _recvCMD, _awaitingResponse_1);
|
|
}
|
|
#endif
|
|
case 0x42:
|
|
// Response to status query
|
|
if(_uart == _UART_0){
|
|
_playing_0 = (c != 0); // Mark the DFPLayer online and cancel timeout
|
|
if (_deviceState_0 == DEVSTATE_INITIALISING) {
|
|
_deviceState_0 = DEVSTATE_NORMAL;
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: %s, keepalive response: 0x%x, uart: %d, _deviceState_0: 0x0%x"),_I2CAddress.toString(), _recvCMD, _uart, _deviceState_0);
|
|
#endif
|
|
#ifdef DIAG_IO
|
|
_display();
|
|
#endif
|
|
}
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: %s, keepalive response: 0x%x, uart: %d"), _I2CAddress.toString(), _recvCMD, _uart);
|
|
#endif
|
|
_awaitingResponse_0 = false;
|
|
} else { // uart 1
|
|
_playing_1 = (c != 0); // Mark the DFPLayer online and cancel timeout
|
|
if (_deviceState_1 == DEVSTATE_INITIALISING) {
|
|
_deviceState_1 = DEVSTATE_NORMAL;
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: %s, keepalive response: 0x%x, uart: %d, _deviceState_1: 0x0%x"),_I2CAddress.toString(), _recvCMD, _uart, _deviceState_1);
|
|
#endif
|
|
#ifdef DIAG_IO
|
|
_display();
|
|
#endif
|
|
}
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: %s, keepalive response: 0x%x, uart: %d"), _I2CAddress.toString(), _recvCMD, _uart);
|
|
#endif
|
|
_awaitingResponse_1 = false;
|
|
}
|
|
break;
|
|
case 0x3d:
|
|
// End of play
|
|
if (_uart == _UART_0){
|
|
if (_playing_0) {
|
|
#ifdef DIAG_IO
|
|
DIAG(F("I2CDFPlayer: Finished, uart: %d"), _uart);
|
|
#endif
|
|
_playing_0 = false;
|
|
}
|
|
} else { // uart 1 finished playing
|
|
if (_playing_1) {
|
|
#ifdef DIAG_IO
|
|
DIAG(F("I2CDFPlayer: Finished, uart: %d"), _uart);
|
|
#endif
|
|
_playing_1 = false;
|
|
}
|
|
}
|
|
break;
|
|
case 0x40:
|
|
// Error codes; 1: Module Busy
|
|
if (_uart == _UART_0){
|
|
DIAG(F("I2CDFPlayer: Error %d returned from device, uart: %d"), c, _uart);
|
|
_playing_0 = false;
|
|
} else { // uart 1 error message
|
|
DIAG(F("I2CDFPlayer: Error %d returned from device, uart: %d"), c, _uart);
|
|
_playing_1 = false;
|
|
}
|
|
break;
|
|
}
|
|
ok = true;
|
|
break;
|
|
case 4: case 5: case 7: case 8:
|
|
ok = true; // Skip over these bytes in message.
|
|
break;
|
|
case 9:
|
|
if (c==0xef) { // Message finished
|
|
if(_uart == _UART_0){
|
|
_retryCounter_0 = RETRYCOUNT_INIT; // reset the retry counter as we have received a valid packet
|
|
} else { //uart 1
|
|
_retryCounter_1 = RETRYCOUNT_INIT; // reset the retry counter as we have received a valid packet
|
|
}
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if (ok){
|
|
_inputIndex++; // character as expected, so increment index
|
|
RX_BUFFER --; // Decrease FIFO_RX_LEVEL with each character read from _inbuffer[_inputIndex]
|
|
} else {
|
|
_inputIndex = 0; // otherwise reset.
|
|
RX_BUFFER = 0;
|
|
}
|
|
}
|
|
RX_BUFFER = 0; //Set to 0, we'll read a new RX FIFO level again
|
|
}
|
|
|
|
|
|
// Send any commands that need to be sent
|
|
void processOutgoing(unsigned long currentMicros, uint8_t _uart) {
|
|
// When two commands are sent in quick succession, the device will often fail to
|
|
// execute one. Testing has indicated that a delay of 100ms or more is required
|
|
// between successive commands to get reliable operation.
|
|
// If 100ms has elapsed since the last thing sent, then check if there's some output to do.
|
|
|
|
if(_uart == _UART_0){
|
|
if (((int32_t)currentMicros - _commandSendTime_0) > 100000) {
|
|
if ( _resetCmd_0 == true){
|
|
sendPacket(0x0C,0,0, _uart);
|
|
_resetCmd_0 = false;
|
|
} else if(_volCmd_0 == true) { // do the volme before palying a track
|
|
if(_requestedVolumeLevel_0 >= 0 && _requestedVolumeLevel_0 <= 30){
|
|
_currentVolume_0 = _requestedVolumeLevel_0; // If _requestedVolumeLevel is out of range, sent _currentV1olume
|
|
}
|
|
sendPacket(0x06, 0x00, _currentVolume_0, _uart);
|
|
_volCmd_0 = false;
|
|
} else if (_playCmd_0 == true) {
|
|
// Change song
|
|
if (_requestedSong_0 != -1) {
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: _requestedVolumeLevel_0: %u, _requestedSong_0: %u, _currentFolder_0: %u _playCmd_0: 0x%x"), _requestedVolumeLevel_0, _requestedSong_0, _currentFolder_0, _playCmd_0);
|
|
#endif
|
|
sendPacket(0x0F, _currentFolder_0, _requestedSong_0, _uart); // audio file in folder
|
|
_requestedSong_0 = -1;
|
|
_playCmd_0 = false;
|
|
}
|
|
} //else if (_requestedSong_0 == 0) {
|
|
else if (_stopplayCmd_0 == true) {
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: Stop playing: _stopplayCmd_0: 0x%x"), _stopplayCmd_0);
|
|
#endif
|
|
sendPacket(0x16, 0x00, 0x00, _uart); // Stop playing
|
|
_requestedSong_0 = -1;
|
|
_repeat_0 = false; // reset repeat for uart 0
|
|
_stopplayCmd_0 = false;
|
|
} else if (_folderCmd_0 == true) {
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: Folder: _folderCmd_0: 0x%x, _requestedFolder_0: %d"), _stopplayCmd_0, _requestedFolder_0);
|
|
#endif
|
|
if (_currentFolder_0 != _requestedFolder_0){
|
|
_currentFolder_0 = _requestedFolder_0;
|
|
}
|
|
_folderCmd_0 = false;
|
|
} else if (_repeatCmd_0 == true) {
|
|
if(_repeat_0 == false) { // No repeat play currently
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: Repeat: _repeatCmd_0: 0x%x, _requestedSong_0: %d, _repeat_0: 0x0%x"), _repeatCmd_0, _requestedSong_0, _repeat_0);
|
|
#endif
|
|
sendPacket(0x08, 0x00, _requestedSong_0, _uart); // repeat playing audio file in root folder
|
|
_requestedSong_0 = -1;
|
|
_repeat_0 = true;
|
|
}
|
|
_repeatCmd_0= false;
|
|
} else if (_daconCmd_0 == true) { // Always turn DAC on
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: DACON: _daconCmd_0: 0x%x"), _daconCmd_0);
|
|
#endif
|
|
sendPacket(0x1A,0,0x00, _uart);
|
|
_daconCmd_0 = false;
|
|
} else if (_eqCmd_0 == true){ // Set Equalizer, values 0x00 - 0x05
|
|
if (_currentEQvalue_0 != _requestedEQValue_0){
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: EQ: _eqCmd_0: 0x%x, _currentEQvalue_0: 0x0%x, _requestedEQValue_0: 0x0%x"), _eqCmd_0, _currentEQvalue_0, _requestedEQValue_0);
|
|
#endif
|
|
_currentEQvalue_0 = _requestedEQValue_0;
|
|
sendPacket(0x07,0x00,_currentEQvalue_0, _uart);
|
|
}
|
|
_eqCmd_0 = false;
|
|
} else if (_setamCmd_0 == true){ // Set Audio mixer channel
|
|
setGPIO(_uart); // Set the audio mixer channel
|
|
_setamCmd_0 = false;
|
|
} else if ((int32_t)currentMicros - _commandSendTime_0 > 1000000) {
|
|
// Poll device every second that other commands aren't being sent,
|
|
// to check if it's still connected and responding.
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: Send keepalive, uart: %d") , _uart);
|
|
#endif
|
|
sendPacket(0x42,0,0, _uart);
|
|
if (!_awaitingResponse_0) {
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: Send keepalive, _awaitingResponse_0: 0x0%x, , uart: %d"), _awaitingResponse_0, _uart);
|
|
#endif
|
|
_timeoutTime_0 = currentMicros + 5000000UL; // Timeout if no response within 5 seconds
|
|
_awaitingResponse_0 = true;
|
|
}
|
|
}
|
|
}
|
|
} else if(_uart == _UART_1){
|
|
if (((int32_t)currentMicros - _commandSendTime_1) > 100000) {
|
|
if ( _resetCmd_1 == true){
|
|
sendPacket(0x0C,0,0, _uart);
|
|
_resetCmd_1 = false;
|
|
} else if(_volCmd_1 == true) { // do the volme before palying a track
|
|
if(_requestedVolumeLevel_1 >= 0 && _requestedVolumeLevel_1 <= 30){
|
|
_currentVolume_1 = _requestedVolumeLevel_1; // If _requestedVolumeLevel is out of range, sent _currentV1olume
|
|
}
|
|
sendPacket(0x06, 0x00, _currentVolume_1, _uart);
|
|
_volCmd_1 = false;
|
|
} else if (_playCmd_1 == true) {
|
|
// Change song
|
|
if (_requestedSong_1 != -1) {
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: _requestedVolumeLevel_1: %u, _requestedSong_1: %u, _currentFolder_1: %u _playCmd_1: 0x%x"), _requestedVolumeLevel_1, _requestedSong_1, _currentFolder_1, _playCmd_1);
|
|
#endif
|
|
sendPacket(0x0F, _currentFolder_1, _requestedSong_1, _uart); // audio file in folder
|
|
_requestedSong_1 = -1;
|
|
_playCmd_1 = false;
|
|
}
|
|
} //else if (_requestedSong_0 == 0) {
|
|
else if (_stopplayCmd_1 == true) {
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: Stop playing: _stopplayCmd_1: 0x%x"), _stopplayCmd_1);
|
|
#endif
|
|
sendPacket(0x16, 0x00, 0x00, _uart); // Stop playing
|
|
_requestedSong_1 = -1;
|
|
_repeat_1 = false; // reset repeat for uart 0
|
|
_stopplayCmd_1 = false;
|
|
} else if (_folderCmd_1 == true) {
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: Folder: _folderCmd_1: 0x%x, _requestedFolder_1: %d"), _stopplayCmd_1, _requestedFolder_1);
|
|
#endif
|
|
if (_currentFolder_1 != _requestedFolder_1){
|
|
_currentFolder_1 = _requestedFolder_1;
|
|
}
|
|
_folderCmd_1 = false;
|
|
} else if (_repeatCmd_1 == true) {
|
|
if(_repeat_1 == false) { // No repeat play currently
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: Repeat: _repeatCmd_1: 0x%x, _requestedSong_1: %d, _repeat_1: 0x0%x"), _repeatCmd_1, _requestedSong_1, _repeat_1);
|
|
#endif
|
|
sendPacket(0x08, 0x00, _requestedSong_0, _uart); // repeat playing audio file in root folder
|
|
_requestedSong_1 = -1;
|
|
_repeat_1 = true;
|
|
}
|
|
_repeatCmd_1= false;
|
|
} else if (_daconCmd_1 == true) { // Always turn DAC on
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: DACON: _daconCmd_1: 0x%x"), _daconCmd_1);
|
|
#endif
|
|
sendPacket(0x1A,0,0x00, _uart);
|
|
_daconCmd_1 = false;
|
|
} else if (_eqCmd_1 == true){ // Set Equalizer, values 0x00 - 0x05
|
|
if (_currentEQvalue_1 != _requestedEQValue_1){
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: EQ: _eqCmd_1: 0x%x, _currentEQvalue_1: 0x0%x, _requestedEQValue_1: 0x0%x"), _eqCmd_1, _currentEQvalue_1, _requestedEQValue_1);
|
|
#endif
|
|
_currentEQvalue_1 = _requestedEQValue_1;
|
|
sendPacket(0x07,0x00,_currentEQvalue_0, _uart);
|
|
}
|
|
_eqCmd_1 = false;
|
|
} else if (_setamCmd_1 == true){ // Set Audio mixer channel
|
|
setGPIO(_uart); // Set the audio mixer channel
|
|
_setamCmd_1 = false;
|
|
} else if ((int32_t)currentMicros - _commandSendTime_1 > 1000000) {
|
|
// Poll device every second that other commands aren't being sent,
|
|
// to check if it's still connected and responding.
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: Send keepalive, uart: %d") , _uart);
|
|
#endif
|
|
sendPacket(0x42,0,0, _uart);
|
|
if (!_awaitingResponse_1) {
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: Send keepalive, _awaitingResponse_1: 0x0%x, , uart: %d"), _awaitingResponse_1, _uart);
|
|
#endif
|
|
_timeoutTime_1 = currentMicros + 5000000UL; // Timeout if no response within 5 seconds
|
|
_awaitingResponse_1 = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// Write to a vPin will do nothing
|
|
void _write(VPIN vpin, int value) override {
|
|
if (_deviceState_0 == DEVSTATE_FAILED) return;
|
|
if (_deviceState_1 == DEVSTATE_FAILED) return;
|
|
#ifdef DIAG_IO
|
|
DIAG(F("I2CDFPlayer: Writing to any vPin not supported"));
|
|
#endif
|
|
}
|
|
|
|
|
|
// WriteAnalogue on first pin uses the nominated value as a file number to start playing, if file number > 0.
|
|
// Volume may be specified as second parameter to writeAnalogue.
|
|
// If value is zero, the player stops playing.
|
|
// WriteAnalogue on second pin sets the output volume.
|
|
//
|
|
//
|
|
//void _writeAnalogue(VPIN vpin, int value, uint8_t volume=0, uint16_t=0) override {
|
|
void _writeAnalogue(VPIN vpin, int value, uint8_t volume=0, uint16_t cmd=0) override {
|
|
if (_deviceState_0 == DEVSTATE_FAILED) return;
|
|
if (_deviceState_1 == DEVSTATE_FAILED) return;
|
|
#ifdef DIAG_IO
|
|
DIAG(F("I2CDFPlayer: VPIN:%u FileNo:%d Volume:%d Command:0x%x"), vpin, value, volume, cmd);
|
|
#endif
|
|
uint8_t pin = vpin - _firstVpin;
|
|
if (pin == 0) { // Enhanced DFPlayer commands, vPin 0 for uart 0
|
|
// Read command and value
|
|
switch (cmd){
|
|
case PLAY:
|
|
_playCmd_0 = true;
|
|
_volCmd_0 = true;
|
|
_requestedSong_0 = value;
|
|
_requestedVolumeLevel_0 = volume;
|
|
_playing_0 = true;
|
|
break;
|
|
case VOL:
|
|
_volCmd_0 = true;
|
|
_requestedVolumeLevel_0 = volume;
|
|
break;
|
|
case FOLDER:
|
|
_folderCmd_0 = true;
|
|
if (volume <= 0 || volume > 99){ // Range checking, valid values 1-99, else default to 1
|
|
_requestedFolder_0 = 0x01; // if outside range, default to folder 01
|
|
} else {
|
|
_requestedFolder_0 = volume;
|
|
}
|
|
break;
|
|
case REPEATPLAY: // Need to check if _repeat == true, if so do nothing
|
|
if (_repeat_0 == false) {
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: WriteAnalog Repeat: _repeat_0: 0x0%x, value: %d _repeatCmd_0: 0x%x"), _repeat_0, value, _repeatCmd_0);
|
|
#endif
|
|
_repeatCmd_0 = true;
|
|
_requestedSong_0 = value;
|
|
_requestedVolumeLevel_0 = volume;
|
|
_playing_0 = true;
|
|
}
|
|
break;
|
|
case STOPPLAY:
|
|
_stopplayCmd_0 = true;
|
|
break;
|
|
case EQ:
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: WriteAnalog EQ: cmd: 0x%x, EQ value: 0x%x"), cmd, volume);
|
|
#endif
|
|
_eqCmd_0 = true;
|
|
if (volume <= 0 || volume > 5) { // If out of range, default to NORMAL
|
|
_requestedEQValue_0 = NORMAL;
|
|
} else { // Valid EQ parameter range
|
|
_requestedEQValue_0 = volume;
|
|
}
|
|
break;
|
|
case RESET: // Reset the DFPlayer module
|
|
_resetCmd_0 = true;
|
|
break;
|
|
case DACON: // Works, but without the DACOFF command limited value, except when not relying on DFPlayer default to turn the DAC on
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: WrtieAnalog DACON: cmd: 0x%x"), cmd);
|
|
#endif
|
|
_daconCmd_0 = true;
|
|
break;
|
|
case SETAM: // Set the audio mixer channel to 1 or 2
|
|
_setamCmd_0 = true;
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: WrtieAnalog SETAM: value: %d, cmd: 0x%x"), value, cmd);
|
|
#endif
|
|
if (volume <= 0 || volume > 2) { // If out of range, default to 1
|
|
_audioMixer_0 = 1;
|
|
} else { // Valid SETAM parameter in range
|
|
_audioMixer_0 = volume; // _audioMixer_0 valid values 1 or 2
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
} else if(pin == 1){ // Enhanced DFPlayer commands, vPin 0 for uart 0
|
|
switch (cmd){
|
|
case PLAY:
|
|
_playCmd_1 = true;
|
|
_volCmd_1 = true;
|
|
_requestedSong_1 = value;
|
|
_requestedVolumeLevel_1 = volume;
|
|
_playing_1 = true;
|
|
break;
|
|
case VOL:
|
|
_volCmd_1 = true;
|
|
_requestedVolumeLevel_1 = volume;
|
|
break;
|
|
case FOLDER:
|
|
_folderCmd_1 = true;
|
|
if (volume <= 0 || volume > 99){ // Range checking, valid values 1-99, else default to 1
|
|
_requestedFolder_1 = 0x01; // if outside range, default to folder 01
|
|
} else {
|
|
_requestedFolder_1 = volume;
|
|
}
|
|
break;
|
|
case REPEATPLAY: // Need to check if _repeat == true, if so do nothing
|
|
if (_repeat_1 == false) {
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: WriteAnalog Repeat: _repeat_1: 0x0%x, value: %d _repeatCmd_1: 0x%x"), _repeat_1, value, _repeatCmd_1);
|
|
#endif
|
|
_repeatCmd_1 = true;
|
|
_requestedSong_1 = value;
|
|
_requestedVolumeLevel_1 = volume;
|
|
_playing_1 = true;
|
|
}
|
|
break;
|
|
case STOPPLAY:
|
|
_stopplayCmd_1 = true;
|
|
break;
|
|
case EQ:
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: WriteAnalog EQ: cmd: 0x%x, EQ value: 0x%x"), cmd, volume);
|
|
#endif
|
|
_eqCmd_1 = true;
|
|
if (volume <= 0 || volume > 5) { // If out of range, default to NORMAL
|
|
_requestedEQValue_1 = NORMAL;
|
|
} else { // Valid EQ parameter range
|
|
_requestedEQValue_1 = volume;
|
|
}
|
|
break;
|
|
case RESET: // Reset the DFPlayer module
|
|
_resetCmd_1 = true;
|
|
break;
|
|
case DACON: // Works, but without the DACOFF command limited value, except when not relying on DFPlayer default to turn the DAC on
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: WrtieAnalog DACON: cmd: 0x%x"), cmd);
|
|
#endif
|
|
_daconCmd_1 = true;
|
|
break;
|
|
case SETAM: // Set the audio mixer channel to 1 or 2
|
|
_setamCmd_1 = true;
|
|
#ifdef DIAG_I2CDFplayer_playing
|
|
DIAG(F("I2CDFPlayer: WrtieAnalog SETAM: value: %d, cmd: 0x%x"), value, cmd);
|
|
#endif
|
|
if (volume <= 0 || volume > 2) { // If out of range, default to 1
|
|
_audioMixer_1 = 1;
|
|
} else { // Valid SETAM parameter in range
|
|
_audioMixer_1 = volume; // _audioMixer_0 valid values 1 or 2
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
// A read on any pin indicates if the player is still playing.
|
|
int _read(VPIN vpin) override {
|
|
if (_deviceState_0 == DEVSTATE_FAILED) return false;
|
|
if (_deviceState_1 == DEVSTATE_FAILED) return false;
|
|
uint8_t pin = vpin - _firstVpin;
|
|
if (pin == 0) { // return _playing for uart 0
|
|
return _playing_0;
|
|
} else if (pin == 1) { // return _playing for uart 1
|
|
return _playing_1;
|
|
}
|
|
}
|
|
|
|
void _display() override {
|
|
DIAG(F("I2CDFPlayer Configured on Vpins:%u-%u %S, UART: %d"), _firstVpin, _firstVpin+_nPins-1,
|
|
(_deviceState_0==DEVSTATE_FAILED) ? F("OFFLINE") : F(""), _UART_0);
|
|
DIAG(F("I2CDFPlayer Configured on Vpins:%u-%u %S, UART: %d"), _firstVpin, _firstVpin+_nPins-1,
|
|
(_deviceState_1==DEVSTATE_FAILED) ? F("OFFLINE") : F(""), _UART_1);
|
|
}
|
|
|
|
private:
|
|
// DFPlayer command frame
|
|
// 7E FF 06 0F 00 01 01 xx xx EF
|
|
// 0 -> 7E is start code
|
|
// 1 -> FF is version
|
|
// 2 -> 06 is length
|
|
// 3 -> 0F is command
|
|
// 4 -> 00 is no receive
|
|
// 5~6 -> 01 01 is argument
|
|
// 7~8 -> checksum = 0 - ( FF+06+0F+00+01+01 )
|
|
// 9 -> EF is end code
|
|
|
|
// TODO rewite sendPacket for both uarts -- Done
|
|
void sendPacket(uint8_t command, uint8_t arg1 = 0, uint8_t arg2 = 0, uint8_t _uart = 0) {
|
|
if(_uart == _UART_0){
|
|
FIFO_TX_LEVEL_0 = 0; // Reset FIFO_TX_LEVEL_0
|
|
} else {
|
|
FIFO_TX_LEVEL_1 = 0; // Reset FIFO_TX_LEVEL_1
|
|
}
|
|
uint8_t out[] = {
|
|
0x7E,
|
|
0xFF,
|
|
06,
|
|
command,
|
|
00,
|
|
//static_cast<uint8_t>(arg >> 8),
|
|
//static_cast<uint8_t>(arg & 0x00ff),
|
|
arg1,
|
|
arg2,
|
|
00,
|
|
00,
|
|
0xEF };
|
|
|
|
setChecksum(out);
|
|
|
|
// Prepend the DFPlayer command with REG address and UART Channel in _outbuffer_0 or _outbuffer_1
|
|
if (_uart==_UART_0){
|
|
_outbuffer_0[0] = REG_THR << 3 | _uart << 1; //TX FIFO and UART Channel
|
|
for ( int i = 1; i < sizeof(out)+1 ; i++){
|
|
_outbuffer_0[i] = out[i-1];
|
|
}
|
|
} else if (_uart==_UART_1){
|
|
_outbuffer_1[0] = REG_THR << 3 | _uart << 1; //TX FIFO and UART Channel
|
|
for ( int i = 1; i < sizeof(out)+1 ; i++){
|
|
_outbuffer_1[i] = out[i-1];
|
|
}
|
|
}
|
|
|
|
if (_uart==_UART_0){
|
|
#ifdef DIAG_I2CDFplayer_data
|
|
DIAG(F("SC16IS752: I2C: %s Sent packet function, UART: %d"), _I2CAddress.toString(), _uart);
|
|
for (int i = 0; i < sizeof _outbuffer_0; i++){
|
|
DIAG(F("SC16IS752: Data _outbuffer_0[0x%x]: 0x%x"), i, _outbuffer_0[i]);
|
|
}
|
|
#endif
|
|
} else if (_uart==_UART_1){
|
|
#ifdef DIAG_I2CDFplayer_data
|
|
DIAG(F("SC16IS752: I2C: %s Sent packet function, UART: %d"), _I2CAddress.toString(), _uart);
|
|
for (int i = 0; i < sizeof _outbuffer_1; i++){
|
|
DIAG(F("SC16IS752: Data _outbuffer_1[0x%x]: 0x%x"), i, _outbuffer_1[i]);
|
|
}
|
|
#endif
|
|
}
|
|
TX_fifo_lvl(_uart);
|
|
if(_uart == _UART_0){
|
|
if(FIFO_TX_LEVEL_0 > 10){ //FIFO uart 0 is empty, proceed
|
|
I2CManager.write(_I2CAddress, _outbuffer_0, sizeof(_outbuffer_0), &_rb); // ************************* use this once buffer issue is solved *********************
|
|
_commandSendTime_0 = micros();
|
|
#ifdef DIAG_I2CDFplayer
|
|
DIAG(F("SC16IS752: I2C: %s data transmit complete on UART: %d"), _I2CAddress.toString(), _uart);
|
|
#endif
|
|
} else {
|
|
DIAG(F("I2CDFPlayer at: %s, TX FIFO not empty on UART: %d"), _I2CAddress.toString(), _uart);
|
|
_deviceState_0 = DEVSTATE_FAILED; // This should not happen, _devstate_0 is for both UART 0
|
|
}
|
|
} else { //Handle uart 1
|
|
if(FIFO_TX_LEVEL_1 > 10){ //FIFO uart 1 is empty, proceed
|
|
I2CManager.write(_I2CAddress, _outbuffer_1, sizeof(_outbuffer_1), &_rb); // ************************* use this once buffer issue is solved *********************
|
|
_commandSendTime_1 = micros();
|
|
#ifdef DIAG_I2CDFplayer
|
|
DIAG(F("SC16IS752: I2C: %s data transmit complete on UART: %d"), _I2CAddress.toString(), _uart);
|
|
#endif
|
|
} else {
|
|
DIAG(F("I2CDFPlayer at: %s, TX FIFO not empty on UART: %d"), _I2CAddress.toString(), _uart);
|
|
_deviceState_1 = DEVSTATE_FAILED; // This should not happen, _devstate is for both UART 1
|
|
}
|
|
}
|
|
}
|
|
|
|
uint16_t calcChecksum(uint8_t* packet)
|
|
{
|
|
uint16_t sum = 0;
|
|
for (int i = 1; i < 7; i++)
|
|
{
|
|
sum += packet[i];
|
|
}
|
|
return -sum;
|
|
}
|
|
|
|
void setChecksum(uint8_t* out)
|
|
{
|
|
uint16_t sum = calcChecksum(out);
|
|
out[7] = (sum >> 8);
|
|
out[8] = (sum & 0xff);
|
|
}
|
|
|
|
// SC16IS752 functions
|
|
// Initialise SC16IS752 only for this uart
|
|
// First a software reset
|
|
// Enable FIFO and clear TX & RX FIFO
|
|
// Need to set the following registers
|
|
// IOCONTROL set bit 1 and 2 to 0 indicating that they are GPIO
|
|
// IODIR set all bit to 1 indicating al are output
|
|
// IOSTATE set only bit 0 to 1 for UART 0, or only bit 1 for UART 1 //
|
|
// LCR bit 7=0 divisor latch (clock division registers DLH & DLL, they store 16 bit divisor),
|
|
// WORD_LEN, STOP_BIT, PARITY_ENA and PARITY_TYPE
|
|
// MCR bit 7=0 clock divisor devide-by-1 clock input
|
|
// DLH most significant part of divisor
|
|
// DLL least significant part of divisor
|
|
//
|
|
// BAUD_RATE, WORD_LEN, STOP_BIT, PARITY_ENA and PARITY_TYPE have been defined and initialized
|
|
//
|
|
void Init_SC16IS752(uint8_t _uart){ // Return value is in _deviceState_0 or _deviceState_1
|
|
#ifdef DIAG_I2CDFplayer
|
|
DIAG(F("SC16IS752: Initialize I2C: %s , UART: %d"), _I2CAddress.toString(), _uart);
|
|
#endif
|
|
UART_WriteRegister(REG_IOCONTROL, 0x08, _uart); // UART Software reset
|
|
UART_ReadRegister(REG_FCR, _uart);
|
|
UART_WriteRegister(REG_FCR, 0x07, _uart); // Reset FIFO, clear RX & TX FIFO
|
|
UART_WriteRegister(REG_MCR, 0x00, _uart); // Set MCR to all 0, includes Clock divisor
|
|
TEMP_REG_VAL = 0x80 | WORD_LEN | STOP_BIT | PARITY_ENA | PARITY_TYPE;
|
|
UART_WriteRegister(REG_LCR, TEMP_REG_VAL, _uart); // Divisor latch enabled
|
|
uint16_t _divisor = (_sc16is752_xtal_freq/PRESCALER)/(BAUD_RATE * 16); // Calculate _divisor for baudrate
|
|
UART_WriteRegister(REG_DLL, (uint8_t)_divisor, _uart); // Write DLL
|
|
UART_WriteRegister(REG_DLH, (uint8_t)(_divisor >> 8), _uart); // Write DLH
|
|
UART_ReadRegister(REG_LCR, _uart); // Read LCR, _inbuffer_x[0] has value, then AND with 0x7F to set bit 7 to 0
|
|
if (_uart == _UART_0){
|
|
TEMP_REG_VAL = _inbuffer_0[0] & 0x7F; // Disable Divisor latch enabled bit uart 0
|
|
} else {
|
|
if(_uart == _UART_1){
|
|
TEMP_REG_VAL = _inbuffer_1[0] & 0x7F; // Disable Divisor latch enabled bit uart 1
|
|
}
|
|
}
|
|
UART_WriteRegister(REG_LCR, TEMP_REG_VAL, _uart); // Divisor latch disabled
|
|
UART_WriteRegister(REG_IOCONTROL, 0x00, _uart); // Set pins to GPIO mode
|
|
UART_WriteRegister(REG_IODIR, 0xFF, _uart); // Set all pins as output
|
|
setGPIO(_uart); // Set the audio mixer channel, is uart independent
|
|
|
|
status = _rb.status;
|
|
if(_uart == _UART_0){ // only execute if _UART_0
|
|
if (status != I2C_STATUS_OK) {
|
|
DIAG(F("SC16IS752: I2C: %s failed %S"), _I2CAddress.toString(), I2CManager.getErrorMessage(status));
|
|
_deviceState_0 = DEVSTATE_FAILED;
|
|
} else {
|
|
#ifdef DIAG_IO
|
|
DIAG(F("SC16IS752: I2C: %s, _rb.status: %S"), _I2CAddress.toString(), I2CManager.getErrorMessage(status));
|
|
#endif
|
|
_deviceState_0 = DEVSTATE_NORMAL; // If I2C state is OK, then proceed to initialize DFPlayer
|
|
}
|
|
} else { // uart 1
|
|
if (status != I2C_STATUS_OK) {
|
|
DIAG(F("SC16IS752: I2C: %s failed %S"), _I2CAddress.toString(), I2CManager.getErrorMessage(status));
|
|
_deviceState_1 = DEVSTATE_FAILED;
|
|
} else {
|
|
#ifdef DIAG_IO
|
|
DIAG(F("SC16IS752: I2C: %s, _rb.status: %S"), _I2CAddress.toString(), I2CManager.getErrorMessage(status));
|
|
#endif
|
|
_deviceState_1 = DEVSTATE_NORMAL; // If I2C state is OK, then proceed to initialize DFPlayer
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// Read the Receive FIFO Level register (RXLVL), return a single unsigned integer
|
|
// of nr of characters in the RX FIFO, bit 6:0, 7 not used, set to zero
|
|
// value from 0 (0x00) to 64 (0x40) Only display if RX FIFO has data
|
|
// The RX fifo level is used to check if there are enough bytes to process a frame
|
|
void RX_fifo_lvl(uint8_t _uart){
|
|
UART_ReadRegister(REG_RXLV, _uart);
|
|
if (_uart == _UART_0){
|
|
FIFO_RX_LEVEL_0 = _inbuffer_0[0];
|
|
} else { // uart 1
|
|
FIFO_RX_LEVEL_1 = _inbuffer_1[0];
|
|
}
|
|
#ifdef DIAG_I2CDFplayer
|
|
if (_uart == _UART_0){
|
|
if (FIFO_RX_LEVEL_0 > 0){
|
|
//if (FIFO_RX_LEVEL_0 > 0 && FIFO_RX_LEVEL_0 < 10){ // uncomment if only RX lvl between 1-9 is required
|
|
DIAG(F("SC16IS752: At I2C: %s, UART: 0d%d, FIFO_RX_LEVEL_0: 0d%d"), _I2CAddress.toString(), _uart, _inbuffer_0[0]);
|
|
}
|
|
} else { // uart 1
|
|
if (FIFO_RX_LEVEL_1 > 0){
|
|
//if (FIFO_RX_LEVEL_1 > 0 && FIFO_RX_LEVEL_1 < 10){ // uncomment if only RX lvl between 1-9 is required
|
|
DIAG(F("SC16IS752: At I2C: %s, UART: 0d%d, FIFO_RX_LEVEL_1: 0d%d"), _I2CAddress.toString(), _uart, _inbuffer_1[0]);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// Read the Tranmit FIFO Level register (TXLVL), return a single unsigned integer
|
|
// of nr characters free in the TX FIFO, bit 6:0, 7 not used, set to zero
|
|
// value from 0 (0x00) to 64 (0x40)
|
|
//
|
|
void TX_fifo_lvl(uint8_t _uart){
|
|
UART_ReadRegister(REG_TXLV, _uart);
|
|
if(_uart == _UART_0){
|
|
FIFO_TX_LEVEL_0 = _inbuffer_0[0];
|
|
} else {
|
|
FIFO_TX_LEVEL_1 = _inbuffer_1[0];
|
|
}
|
|
#ifdef DIAG_I2CDFplayer
|
|
if(_uart == _UART_0){
|
|
// DIAG(F("SC16IS752: At I2C: %s, UART channel: 0d%d, FIFO_TX_LEVEL_0: 0d%d"), _I2CAddress.toString(), _uart, FIFO_TX_LEVEL_0);
|
|
} else {
|
|
// DIAG(F("SC16IS752: At I2C: %s, UART channel: 0d%d, FIFO_TX_LEVEL_1: 0d%d"), _I2CAddress.toString(), _uart, FIFO_TX_LEVEL_1);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// When a frame is transmitted from the DFPlayer to the serial port, and at the same time the CS is sending a 42 query
|
|
// the following two frames from the DFPlayer are corrupt. This result in the receive buffer being out of sync and the
|
|
// CS will complain and generate a timeout.
|
|
// The RX fifo has corrupt data and need to be flushed, this function does that
|
|
//
|
|
void resetRX_fifo(uint8_t _uart){
|
|
#ifdef DIAG_I2CDFplayer
|
|
DIAG(F("SC16IS752: At I2C: %s, UART: %d, RX fifo reset"), _I2CAddress.toString(), _uart);
|
|
#endif
|
|
//TEMP_REG_VAL = 0x03; // Reset RX fifo
|
|
UART_WriteRegister(REG_FCR, 0x03, _uart);
|
|
}
|
|
|
|
// Set or reset GPIO pin 0 and 1 depending on the UART ch
|
|
// This function may be modified in a future release to enable all 8 pins to be set or reset with EX-Rail
|
|
// for various auxilary functions
|
|
void setGPIO(uint8_t _uart){
|
|
UART_ReadRegister(REG_IOSTATE, _uart); // Get the current GPIO pins state from the IOSTATE register, independant of uart
|
|
// _inbuffer_0 for uart 0, _inbuffer_1 for uart 1
|
|
if (_audioMixer_0 == 1){ // set to audio mixer 1
|
|
if (_uart == _UART_0){
|
|
TEMP_REG_VAL = _inbuffer_0[0];
|
|
TEMP_REG_VAL |= (0x01 << _uart); //Set GPIO pin 0 to high
|
|
_setamCmd_0 = false;
|
|
} else { // must be UART 1
|
|
TEMP_REG_VAL = _inbuffer_1[0];
|
|
TEMP_REG_VAL |= (0x01 << _uart); //Set GPIO pin 1 to high
|
|
_setamCmd_1 = false;
|
|
}
|
|
} else { // set to audio mixer 2
|
|
if (_uart == _UART_0){
|
|
TEMP_REG_VAL = _inbuffer_0[0];
|
|
TEMP_REG_VAL &= ~(0x01 << _uart); //Set GPIO pin 0 to Low
|
|
_setamCmd_0 = false;
|
|
} else { // must be UART 1
|
|
TEMP_REG_VAL = _inbuffer_1[0];
|
|
TEMP_REG_VAL &= ~(0x01 << _uart); //Set GPIO pin 1 to Low
|
|
_setamCmd_1 = false;
|
|
}
|
|
}
|
|
UART_WriteRegister(REG_IOSTATE, TEMP_REG_VAL, _uart);
|
|
}
|
|
|
|
|
|
//void UART_WriteRegister(I2CAddress _I2CAddress, uint8_t _UART_CH, uint8_t UART_REG, uint8_t Val, uint8 _uart, I2CRB &_rb){
|
|
void UART_WriteRegister(uint8_t UART_REG, uint8_t Val, uint8_t _uart){
|
|
if (_uart == _UART_0){
|
|
_outbuffer_0[0] = UART_REG << 3 | _uart << 1;
|
|
_outbuffer_0[1] = Val;
|
|
I2CManager.write(_I2CAddress, _outbuffer_0, 2);
|
|
} else {
|
|
if (_uart == _UART_1){
|
|
_outbuffer_1[0] = UART_REG << 3 | _uart << 1;
|
|
_outbuffer_1[1] = Val;
|
|
I2CManager.write(_I2CAddress, _outbuffer_1, 2);
|
|
}
|
|
}
|
|
#ifdef DIAG_I2CDFplayer_reg
|
|
if(_uart == _UART_0){
|
|
DIAG(F("SC16IS752: Write register at I2C: %s, UART channel: %d, Register: 0x%x, Data: 0b%b"), _I2CAddress.toString(), _uart, UART_REG, _outbuffer_0[1]);
|
|
} else {
|
|
if(_uart == _UART_1){
|
|
DIAG(F("SC16IS752: Write register at I2C: %s, UART channel: %d, Register: 0x%x, Data: 0b%b"), _I2CAddress.toString(), _uart, UART_REG, _outbuffer_1[1]);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
|
|
void UART_ReadRegister(uint8_t UART_REG, uint8_t _uart){
|
|
if (_uart == _UART_0){
|
|
_outbuffer_0[0] = UART_REG << 3 | _uart << 1; // _outbuffer_0[0] has now UART_REG and UART
|
|
I2CManager.read(_I2CAddress, _inbuffer_0, 1, _outbuffer_0, 1);
|
|
} else if (_uart == _UART_1){
|
|
_outbuffer_1[0] = UART_REG << 3 | _uart << 1; // _outbuffer_1[0] has now UART_REG and UART
|
|
I2CManager.read(_I2CAddress, _inbuffer_1, 1, _outbuffer_1, 1);
|
|
}
|
|
// _inbuffer has the REG data
|
|
#ifdef DIAG_I2CDFplayer_reg
|
|
if (_uart == _UART_0){
|
|
DIAG(F("SC16IS752: Read register at I2C: %s, UART: %d, Register: 0x%x, Data: 0b%b"), _I2CAddress.toString(), _uart, UART_REG, _inbuffer_0[0]);
|
|
} else {
|
|
DIAG(F("SC16IS752: Read register at I2C: %s, UART: %d, Register: 0x%x, Data: 0b%b"), _I2CAddress.toString(), _uart, UART_REG, _inbuffer_1[0]);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
// SC16IS752 General register set (from the datasheet)
|
|
enum : uint8_t{
|
|
REG_RHR = 0x00, // FIFO Read
|
|
REG_THR = 0x00, // FIFO Write
|
|
REG_IER = 0x01, // Interrupt Enable Register R/W
|
|
REG_FCR = 0x02, // FIFO Control Register Write
|
|
REG_IIR = 0x02, // Interrupt Identification Register Read
|
|
REG_LCR = 0x03, // Line Control Register R/W
|
|
REG_MCR = 0x04, // Modem Control Register R/W
|
|
REG_LSR = 0x05, // Line Status Register Read
|
|
REG_MSR = 0x06, // Modem Status Register Read
|
|
REG_SPR = 0x07, // Scratchpad Register R/W
|
|
REG_TCR = 0x06, // Transmission Control Register R/W
|
|
REG_TLR = 0x07, // Trigger Level Register R/W
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REG_TXLV = 0x08, // Transmitter FIFO Level register Read
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REG_RXLV = 0x09, // Receiver FIFO Level register Read
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REG_IODIR = 0x0A, // Programmable I/O pins Direction register R/W
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REG_IOSTATE = 0x0B, // Programmable I/O pins State register R/W
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REG_IOINTENA = 0x0C, // I/O Interrupt Enable register R/W
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REG_IOCONTROL = 0x0E, // I/O Control register R/W
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REG_EFCR = 0x0F, // Extra Features Control Register R/W
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};
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// SC16IS752 Special register set
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enum : uint8_t{
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REG_DLL = 0x00, // Division registers R/W
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REG_DLH = 0x01, // Division registers R/W
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};
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// SC16IS752 Enhanced regiter set
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enum : uint8_t{
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REG_EFR = 0X02, // Enhanced Features Register R/W
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REG_XON1 = 0x04, // R/W
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REG_XON2 = 0x05, // R/W
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REG_XOFF1 = 0x06, // R/W
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REG_XOFF2 = 0x07, // R/W
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};
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// DFPlayer commands and values
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enum : uint8_t{
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PLAY = 0x0F,
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VOL = 0x06,
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FOLDER = 0x2B, // Not a DFPlayer command, used to set folder nr where audio file is
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REPEATPLAY = 0x08,
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STOPPLAY = 0x16,
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EQ = 0x07, // Set equaliser, require parameter NORMAL, POP, ROCK, JAZZ, CLASSIC or BASS
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RESET = 0x0C,
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DACON = 0x1A,
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SETAM = 0x2A, // Set audio mixer 1 or 2 for this DFPLayer
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NORMAL = 0x00, // Equalizer parameters
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POP = 0x01,
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ROCK = 0x02,
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JAZZ = 0x03,
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CLASSIC = 0x04,
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BASS = 0x05,
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};
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};
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#endif // IO_I2CDFPlayer_h
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