VS1053.h

00001 /**
00002  *  ==================================================== Dec 21 2013, kayeks ==
00003  *  VS1053.cpp
00004  *  ===========================================================================
00005  *  Just a simple library for VLSI's mp3/midi codec chip
00006  *       - Minimal and simple implementation (and dirty too)
00007  *
00008  *  Modified on 05 September 2015 by Vassilis Serasidis.
00009  *       -   Added a patch for playing MP3 files on some "LC Technology" VS1053 boards.
00010  *
00011  *
00012  */
00013  
00014 #ifndef KAYX_VS1053_H_
00015 #define KAYX_VS1053_H_
00016 
00017 /** Class VS1053. Drives VLSI's mp3/midi codec chip. */
00018 class VS1053 {
00019 private:
00020     SPI        spi;
00021     DigitalOut cs;
00022     DigitalOut bsync;
00023     DigitalIn  dreq;
00024     DigitalOut rst;
00025 
00026 public:
00027     static const uint8_t SCI_MODE        = 0x00;
00028     static const uint8_t SCI_STATUS      = 0x01;
00029     static const uint8_t SCI_BASS        = 0x02;
00030     static const uint8_t SCI_CLOCKF      = 0x03;
00031     static const uint8_t SCI_DECODE_TIME = 0x04;
00032     static const uint8_t SCI_AUDATA      = 0x05;
00033     static const uint8_t SCI_WRAM        = 0x06;
00034     static const uint8_t SCI_WRAMADDR    = 0x07;
00035     static const uint8_t SCI_HDAT0       = 0x08;
00036     static const uint8_t SCI_HDAT1       = 0x09;
00037     static const uint8_t SCI_AIADDR      = 0x0a;
00038     static const uint8_t SCI_VOL         = 0x0b;
00039     static const uint8_t SCI_AICTRL0     = 0x0c;
00040     static const uint8_t SCI_AICTRL1     = 0x0d;
00041     static const uint8_t SCI_AICTRL2     = 0x0e;
00042     static const uint8_t SCI_AICTRL3     = 0x0f;
00043     
00044     static const uint8_t SM_RESET        = 2;
00045     static const uint8_t SM_SDINEW       = 11;
00046     
00047     VS1053(PinName mosiPin, PinName misoPin, PinName sckPin,
00048            PinName csPin, PinName bsyncPin, PinName dreqPin, PinName rstPin,
00049            uint32_t spiFrequency=1000000);
00050     ~VS1053();
00051     void hardwareReset();
00052     void modeSwitch(void);
00053     void sendDataByte(char data);
00054     size_t sendDataBlock(char* data, size_t length);
00055     void clockUp();
00056     bool sendCancel();
00057     bool stop();
00058     
00059 private:
00060     void writeReg(uint8_t, uint16_t);
00061     uint16_t readReg(uint8_t);
00062 };
00063 
00064 #endif