Diff: VS1053.h

Revision:

4:cacb5e663fa9

Parent:

3:88a645490529

Child:

5:ead95c0f7800

--- a/VS1053.h	Wed Dec 22 21:15:22 2010 +0000
+++ b/VS1053.h	Fri Dec 24 23:52:55 2010 +0000
@@ -67,6 +67,8 @@
 #define DEFAULT_TREBLE_AMPLITUDE                      0        //  -8 -     7 dB
 #define DEFAULT_TREBLE_FREQUENCY                  15000        //1000 - 15000 Hz
 
+#define BUFFER_SIZE                       (16 * 1024 + 1)
+
 // SCI register address assignment
 #define SCI_MODE                                    0x00
 #define SCI_STATUS                                  0x01
@@ -130,7 +132,9 @@
 #define para_positionMsec_0                         0x1E27
 #define para_positionMsec_1                         0x1E28
 #define para_resync                                 0x1E29
-
+   
+#define INTERRUPT_HANDLER_ENABLE                    _DREQ_INTERUPT_IN.rise(this, &VS1053::dataRequestHandler); timer.attach_us(this, &VS1053::dataRequestHandler, 1000)
+#define INTERRUPT_HANDLER_DISABLE                   _DREQ_INTERUPT_IN.rise(NULL); timer.detach()  
 
 /** Class for VS1053 - Ogg Vorbis / MP3 / AAC / WMA / FLAC / MIDI Audio Codec Chip.
  *
@@ -198,7 +202,7 @@
         PinName rst,
         PinName dreq,
         PinName dcs
-    );
+    );   
 
     /** Reset the vs1053b. (hardware reset)
      *
@@ -309,7 +313,16 @@
      * @param speed
      *   Speed 0, 1, .. 4 (0, 1 normal speed).
      */    
-    void setPlaySpeed(unsigned short speed);        
+    void setPlaySpeed(unsigned short speed);       
+        
+    bool bufferSetByte(unsigned char c);
+    bool bufferPutStream(const unsigned char *s, unsigned int length);
+    unsigned int bufferFree(void);
+    unsigned int bufferCount(void);    
+    
+    void play(void);
+    void pause(void);
+    void stop(void);
 
 protected:
     unsigned short int wram_read(unsigned short int);
@@ -336,28 +349,42 @@
     void sine_test_deactivate(void);
 
     void changeVolume(void);
+        
     
     // TODO
     void power_down(void);
-#if 0
-    void putcStream(unsigned char);
-#endif
+
     void changeBass(void);
     
-    SPI                 _spi;
-    DigitalOut          _CS;
-    DigitalOut          _DCS;    
-    DigitalIn           _DREQ;
-    DigitalOut          _RST;
+    unsigned char bufferGetByte(void);    
+    void bufferReset(void);         
+    void dataRequestHandler(void);
     
+    SPI                             _spi;
+    DigitalOut                      _CS;
+    DigitalOut                      _RST;
+    DigitalOut                      _DCS;    
+    DigitalIn                       _DREQ;    
+    InterruptIn                     _DREQ_INTERUPT_IN;
+    
+    unsigned char                   _buffer[BUFFER_SIZE];
+    unsigned char*                  _bufferReadPointer;
+    unsigned char*                  _bufferWritePointer;
+    
+    bool                            _isIdle;
+
     // variables to save 
     //   volume, values in db
-    float               _balance;    
-    float               _volume;
+    float                           _balance;    
+    float                           _volume;
     //   bass enhancer settings  
-    int                 _sb_amplitude;
-    int                 _sb_freqlimit;
-    int                 _st_amplitude;
-    int                 _st_freqlimit;
+    int                             _sb_amplitude;
+    int                             _sb_freqlimit;
+    int                             _st_amplitude;
+    int                             _st_freqlimit;    
+    
+    Ticker timer;        
+    
 };
+
 #endif