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 #pragma O3
00010 //SCI_MODE register bits
00011 #define SM_DIFF         0x0001
00012 #define SM_SETTOZERO    0x0002
00013 #define SM_RESET        0x0004
00014 #define SM_OUTOFWAV     0x0008
00015 #define SM_PDOWN        0x0010
00016 #define SM_TESTS        0x0020
00017 #define SM_STREAM       0x0040
00018 #define SM_PLUSV        0x0080
00019 #define SM_DACT         0x0100
00020 #define SM_SDIORD       0x0200
00021 #define SM_SDISHARE     0x0400
00022 #define SM_SDINEW       0x0800
00023 #define SM_ADPCM        0x1000
00024 #define SM_ADPCM_HP     0x2000
00025 
00026 #define SineWave_10k        (0x1D)
00027 #define SineWave_1k         (0xA8)
00028 
00029 
00030 /** Class VS1053. Drives VLSI's mp3/midi codec chip. */
00031 class VS1053 {
00032 private:
00033     SPI        spi;
00034     DigitalOut cs;
00035     DigitalOut dcs;
00036     DigitalIn  dreq;
00037     DigitalOut rst;
00038 
00039 public:
00040     static const uint8_t SCI_MODE        = 0x00;
00041     static const uint8_t SCI_STATUS      = 0x01;
00042     static const uint8_t SCI_BASS        = 0x02;
00043     static const uint8_t SCI_CLOCKF      = 0x03;
00044     static const uint8_t SCI_DECODE_TIME = 0x04;
00045     static const uint8_t SCI_AUDATA      = 0x05;
00046     static const uint8_t SCI_WRAM        = 0x06;
00047     static const uint8_t SCI_WRAMADDR    = 0x07;
00048     static const uint8_t SCI_HDAT0       = 0x08;
00049     static const uint8_t SCI_HDAT1       = 0x09;
00050     static const uint8_t SCI_AIADDR      = 0x0a;
00051     static const uint8_t SCI_VOL         = 0x0b;
00052     static const uint8_t SCI_AICTRL0     = 0x0c;
00053     static const uint8_t SCI_AICTRL1     = 0x0d;
00054     static const uint8_t SCI_AICTRL2     = 0x0e;
00055     static const uint8_t SCI_AICTRL3     = 0x0f;
00056     
00057     VS1053(PinName mosiPin, PinName misoPin, PinName sckPin,
00058            PinName csPin, PinName dcsPin, PinName dreqPin, PinName rstPin,
00059            uint32_t spiFrequency=7000000);
00060     ~VS1053();
00061     void hardwareReset();
00062     void sendDataByte(uint8_t data);
00063     size_t sendDataBlock(uint8_t* data, size_t length);
00064     bool checkDREQ();
00065     void sci_init();
00066     void sdi_init();
00067     bool sendCancel();
00068     bool stop();
00069     void sine_test_activate(unsigned char wave);
00070     void sine_test_deactivate();
00071     void VolControl(uint16_t vol);
00072     uint16_t readReg(uint8_t);
00073 
00074 private:
00075     void writeReg(uint8_t, uint16_t);
00076     uint32_t useSpiFreq;
00077     void sci_en();
00078     void sci_dis();
00079     void sdi_en();
00080     void sdi_dis();
00081 };
00082 
00083 #endif