VS1053.h

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