Diff: VS1053.cpp

Revision:

1:f54bee9d59de

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/VS1053.cpp	Fri Apr 28 19:18:46 2017 +0000
@@ -0,0 +1,325 @@
+#include "VS1053.h"
+#include "mbed.h"
+
+// patch binary
+#include "VS1053b_patch.c"
+// spectrum analyzer binary
+#include "VS1053b_specana.c"
+
+//Serial pc(USBTX, USBRX);
+
+/* ==================================================================
+ * Constructor
+ * =================================================================*/
+VS1053::VS1053(
+         PinName mosi, PinName miso, PinName sck, PinName cs, PinName rst,
+         PinName dreq, PinName dcs, PinName vol)
+    :
+     _spi(mosi, miso, sck), 
+     _CS(cs), 
+     _RST(rst), 
+     _DREQ(dreq),
+     _DCS(dcs), 
+     _VOL(vol) {
+        firstTime=-1;    
+    }    
+
+/*===================================================================
+ * Functions
+ *==================================================================*/
+ 
+void VS1053::cs_low(void)
+{
+    _CS = 0;                                
+}
+void VS1053::cs_high(void)
+{
+    _CS = 1;                                
+}
+void VS1053::dcs_low(void)
+{
+    _DCS = 0;
+ 
+}
+void VS1053::dcs_high(void)
+{
+    _DCS = 1;
+}
+void VS1053::sci_en(void)                    //SCI enable
+{
+    cs_high();
+    dcs_high();
+    cs_low();
+}
+void VS1053::sci_dis(void)                    //SCI disable
+{
+    cs_high();
+}
+void VS1053::sdi_en(void)                    //SDI enable
+{
+    dcs_high();
+    cs_high();
+    dcs_low();
+}
+void VS1053::sdi_dis(void)                    //SDI disable
+{
+    dcs_high();
+}
+void VS1053::reset(void)                    //hardware reset
+{
+//    wait(0.01);
+    wait_ms(10);
+    _RST = 0;
+//    wait(0.01);
+    wait_ms(5);
+    _RST = 1;
+//    wait(0.10);
+    wait_ms(10);
+}
+void VS1053::power_down(void)                //hardware and software reset
+{
+    cs_low();
+    reset();
+//    sci_write(0x00, SM_PDOWN);
+    sci_write(0x00, 0x10); // tempo
+    wait(0.01);
+    reset();
+}
+void VS1053::sci_initialise(void)
+{
+    _RST = 1;                                //no reset
+    _spi.format(8,0);                        //spi 8bit interface, steady state low
+ //   _spi.frequency(1000000);                //rising edge data record, freq. 1Mhz
+    _spi.frequency(2000000);                //rising edge data record, freq. 2Mhz
+
+    
+    cs_low();
+    for(int i=0; i<4; i++)
+    {
+    _spi.write(0xFF);                        //clock the chip a bit
+    }
+    cs_high();
+    dcs_high();
+    wait_us(5);
+}
+void VS1053::sdi_initialise(void)
+{
+    _spi.format(8,0);
+//    _spi.frequency(7000000);                //set to 7MHz
+//    _spi.frequency(12000000);                //set to 12MHz to make fast transfer
+    _spi.frequency(18000000);                //set to 18MHz to make fast transfer
+//NG does not work//    _spi.frequency(24000000);                //set to 24MHz to make fast transfer
+    
+    cs_high();
+    dcs_high();
+}
+void VS1053::sci_write(unsigned char address, unsigned short int data)
+{
+    sci_en();                                //enables SCI/disables SDI
+    
+    while(!_DREQ);                            //wait unitl data request is high
+    _spi.write(0x02);                        //SCI write
+    _spi.write(address);                    //register address
+    _spi.write((data >> 8) & 0xFF);            //write out first half of data word
+    _spi.write(data & 0xFF);                //write out second half of data word
+    
+    sci_dis();                                //enables SDI/disables SCI
+    wait_us(5);
+}
+void VS1053::sdi_write(unsigned char datum)
+{
+    sdi_en();
+    
+    while(!_DREQ);
+    _spi.write(datum);
+    
+//?    sci_dis();
+      sdi_dis();
+}
+unsigned short int VS1053::sci_read(unsigned short int address)
+{
+    cs_low();                                //enables SCI/disables SDI
+    
+    while(!_DREQ);                            //wait unitl data request is high
+    _spi.write(0x03);                        //SCI write
+    _spi.write(address);                    //register address
+    unsigned short int received = _spi.write(0x00);    //write out dummy byte
+    received <<= 8;
+    received += _spi.write(0x00);            //write out dummy byte
+    
+    cs_high();                                //enables SDI/disables SCI
+    
+    return received;                        //return received word
+}
+void VS1053::sine_test_activate(unsigned char wave)
+{
+    cs_high();                                //enables SDI/disables SCI
+    
+    while(!_DREQ);                            //wait unitl data request is high
+    _spi.write(0x53);                        //SDI write
+    _spi.write(0xEF);                        //SDI write
+    _spi.write(0x6E);                        //SDI write
+    _spi.write(wave);                        //SDI write
+    _spi.write(0x00);                        //filler byte
+    _spi.write(0x00);                        //filler byte
+    _spi.write(0x00);                        //filler byte
+    _spi.write(0x00);                        //filler byte
+
+    cs_low();                                //enables SCI/disables SDI
+}
+void VS1053::sine_test_deactivate(void)
+{
+    cs_high();
+    
+    while(!_DREQ);
+    _spi.write(0x45);                        //SDI write
+    _spi.write(0x78);                        //SDI write
+    _spi.write(0x69);                        //SDI write
+    _spi.write(0x74);                        //SDI write
+    _spi.write(0x00);                        //filler byte
+    _spi.write(0x00);                        //filler byte
+    _spi.write(0x00);                        //filler byte
+    _spi.write(0x00);                        //filler byte
+}
+void VS1053::volume(void)
+{
+ #ifdef FIXED_VOL
+    unsigned char volumize = (0 * 255); // FIXED VOL (not support volume input)
+ #else
+    unsigned char volumize = (_VOL * 255);
+ #endif
+    while(!_DREQ);
+    
+    unsigned short int attenuation = ((256 * volumize) + volumize);
+    sci_write(0x0B, attenuation);
+}
+
+void VS1053::writeStream(unsigned char *array, int size)
+{
+   for(int i=0; i<size; i++)
+   {
+       sdi_write(array[i]);
+   }
+   volume();
+}
+
+#if 0
+// this function does not work
+// because of function call overhead
+void VS1053::putcStream(unsigned char datum)
+{
+    sdi_write(datum);
+}
+#endif
+
+unsigned short int VS1053::wram_read(unsigned short int address)
+{
+    unsigned short int tmp1,tmp2;
+    sci_write(SCI_WRAMADDR,address);
+    tmp1=sci_read(SCI_WRAM);
+    sci_write(SCI_WRAMADDR,address);
+    tmp2=sci_read(SCI_WRAM);
+    if (tmp1==tmp2) return tmp1;
+    sci_write(SCI_WRAMADDR,address);
+    tmp1=sci_read(SCI_WRAM);
+    if (tmp1==tmp2) return tmp1;
+    sci_write(SCI_WRAMADDR,address);    
+    tmp1=sci_read(SCI_WRAM);
+    if (tmp1==tmp2) return tmp1;
+    return tmp1;    
+}
+
+void VS1053::wram_write(unsigned short int address, unsigned short int data)
+{
+    sci_write(SCI_WRAMADDR,address);
+    sci_write(SCI_WRAM,data);
+    return;
+}
+
+
+void VS1053::terminateStream(void)
+{
+#if 1
+    unsigned int endFillByte=wram_read(para_endFillByte);
+//    printf("endFillByte:%04X\r\n",endFillByte); // debug
+    for(int n=0; n<2052; n++) sdi_write(0xFF&endFillByte);
+    sci_write(SCI_MODE,(SM_SDINEW+SM_CANCEL));
+    for(int n=0; n<2048; n++) sdi_write(0xFF&endFillByte);
+    // don't reset if you don't want to lose the patch 
+    //    sci_write(SCI_MODE,(SM_SDINEW+SM_RESET)); //  set mode reg.
+    //    wait_ms(10); 
+#endif 
+}
+
+void VS1053::write_plugin(const unsigned short *plugin, unsigned int len)
+{
+  unsigned int i;
+  unsigned short addr, n, val;
+
+  for(i=0; i<len;)
+  {
+    addr = plugin[i++];
+    n    = plugin[i++];
+    if(n & 0x8000U) //RLE run, replicate n samples
+    {
+      n  &= 0x7FFF;
+      val = plugin[i++];
+      while(n--) 
+      {
+        sci_write(addr,val);
+      }
+    }
+    else //copy run, copy n sample
+    {
+      while(n--)
+      {
+        val = plugin[i++];
+        sci_write(addr,val);
+      }
+    }
+  }
+
+  return;
+}
+
+
+void VS1053::initialize(void)
+{
+    _RST = 1;
+    cs_high();                           //chip disabled
+    sci_initialise();                    //initialise MBED
+    sci_write(SCI_MODE,(SM_SDINEW+SM_RESET)); //  set mode reg.
+    wait_ms(10); 
+#if 1
+       // debug
+        unsigned int chipID_0=wram_read(para_chipID_0);
+        if (firstTime) printf("chipID_0:%04X\r\n",chipID_0); // debug
+        unsigned int chipID_1=wram_read(para_chipID_1);
+        if (firstTime) printf("chipID_1:%04X\r\n",chipID_1); // debug      
+        unsigned int struct_version=wram_read(para_version);
+        if (firstTime) printf("structure version:%04X\r\n",struct_version); // debug      
+ #endif
+    //get chip version, set clock multiplier and load patch
+    int i = (sci_read(SCI_STATUS)&0xF0)>>4;
+    if(i == 4) 
+    {
+        if (firstTime) printf("Installed Chip is: VS1053\r\n");
+        sci_write(SCI_CLOCKF, (SC_MULT_XTALIx50+SC_ADD_20x)); 
+#ifdef VS_PATCH
+        // loading patch
+        write_plugin(vs1053b_patch, sizeof(vs1053b_patch)/2);
+        if (firstTime) {
+            printf("VS1053b patch loaded.\r\n");
+            printf("patch size:%d bytes\r\n",sizeof(vs1053b_patch));
+        }
+#endif
+#ifdef VS_SPECANA
+        // loading plugin(spectrum analyzer)
+        write_plugin(vs1053b_specana, sizeof(vs1053b_specana)/2);
+        if (firstTime) printf("VS1053b specana loaded.\r\n");
+#endif
+    }
+    else printf("??? Not Supported Chip???\r\n");
+    sdi_initialise(); 
+    firstTime=0; // disable message when init after 1st time
+}