Diff: VS1002.cpp

Revision:

1:0014879fa94f

Parent:

0:9cb0b3d1b9e6

--- a/VS1002.cpp	Tue Oct 12 21:25:35 2010 +0000
+++ b/VS1002.cpp	Wed Mar 06 00:36:15 2013 +0000
@@ -10,31 +10,32 @@
  * Constructor
  * =================================================================*/
 VS1002::VS1002(
-PinName mmosi, PinName mmiso, PinName ssck, PinName ccs, const char *name,
-         PinName mosi, PinName miso, PinName sck, PinName cs, PinName rst,
-         PinName dreq, PinName dcs, PinName vol)
+    PinName mmosi, PinName mmiso, PinName ssck, PinName ccs, const char *name,
+    PinName mosi, PinName miso, PinName sck, PinName cs, PinName rst,
+    PinName dreq, PinName dcs, PinName vol)
     :
-     _sd(mmosi, mmiso, ssck, ccs, name),
-     _spi(mosi, miso, sck), 
-     _CS(cs), 
-     _RST(rst), 
-     _DREQ(dreq),
-     _DCS(dcs), 
-     _VOL(vol) {
-    
-    }    
+    _sd(mmosi, mmiso, ssck, ccs, name),
+    _spi(mosi, miso, sck),
+    _CS(cs),
+    _RST(rst),
+    _DREQ(dreq),
+    _DCS(dcs),
+    _VOL(vol)
+{
+
+}
 
 /*===================================================================
  * Functions
  *==================================================================*/
- 
+
 void VS1002::cs_low(void)
 {
-    _CS = 0;                                
+    _CS = 0;
 }
 void VS1002::cs_high(void)
 {
-    _CS = 1;                                
+    _CS = 1;
 }
 void VS1002::dcs_low(void)
 {
@@ -85,11 +86,10 @@
     _RST = 1;                                //no reset
     _spi.format(8,0);                        //spi 8bit interface, steady state low
     _spi.frequency(1000000);                //rising edge data record, freq. 1Mhz
-    
+
     cs_low();
-    for(int i=0; i<4; i++)
-    {
-    _spi.write(0xFF);                        //clock the chip a bit
+    for(int i=0; i<4; i++) {
+        _spi.write(0xFF);                        //clock the chip a bit
     }
     cs_high();
     dcs_high();
@@ -99,51 +99,51 @@
 {
     _spi.format(8,0);
     _spi.frequency(7000000);                //set to 7MHz
-    
+
     cs_high();
     dcs_high();
 }
 void VS1002::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 VS1002::sdi_write(unsigned char datum)
 {
     sdi_en();
-    
+
     while(!_DREQ);
     _spi.write(datum);
-    
+
     sci_dis();
 }
 unsigned short int VS1002::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 VS1002::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
@@ -159,7 +159,7 @@
 void VS1002::sine_test_deactivate(void)
 {
     cs_high();
-    
+
     while(!_DREQ);
     _spi.write(0x45);                        //SDI write
     _spi.write(0x78);                        //SDI write
@@ -172,22 +172,22 @@
 }
 void VS1002::volume(void)
 {
- #ifdef FIXED_VOL
+#ifdef FIXED_VOL
     unsigned char volumize = (0 * 255); // FIXED VOL (not support volume input)
- #else
+#else
     unsigned char volumize = (_VOL * 255);
- #endif
+#endif
     while(!_DREQ);
-    
+
     unsigned short int attenuation = ((256 * volumize) + volumize);
     sci_write(0x0B, attenuation);
-   
+
 }
 
 void VS1002::play_song(int song_number)
 {
     /*====== Song Select ======*/
-    
+
 //    char list[10000] = {0};
     char list[1000] = {0};
     char str[16] = {"/sd/"};
@@ -199,40 +199,31 @@
     DIR *d;
     struct dirent *p;
     d = opendir("/sd");
-    if(d != NULL) 
-           {
-               while((p = readdir(d)) != NULL) 
-           {
-               strcat(list, "*");
-               strcat(list, p->d_name);
-               num_of_files++;
-           }
-    }
-    else 
-    {
-         perror("Could not open directory!");
+    if(d != NULL) {
+        while((p = readdir(d)) != NULL) {
+            strcat(list, "*");
+            strcat(list, p->d_name);
+            num_of_files++;
+        }
+    } else {
+        perror("Could not open directory!");
     }
     strcat(list, "*");                                //terminating *
-    if(num_of_files < song_number)
-    {
+    if(num_of_files < song_number) {
         return;
     }
-    while(play != song_number)
-    {
+    while(play != song_number) {
         char symbol = list[startplace];
         startplace++;
-        if(symbol == 0x2A)                        //0x2A = "*"    
-        {
+        if(symbol == 0x2A) {                      //0x2A = "*"
             play++;
-        }                        
+        }
     }
     play = 0;
-    while(play != (song_number+1))
-    {
+    while(play != (song_number+1)) {
         char symbol = list[endplace];
-        endplace++;    
-        if(symbol == 0x2A)                        //0x2A = "*"    
-        {
+        endplace++;
+        if(symbol == 0x2A) {                      //0x2A = "*"
             play++;
         }
     }
@@ -240,44 +231,42 @@
     strncat(str, &list[startplace], endplace-startplace);
     str[(endplace-startplace)+3] = '\0';
 
-//printf("list: %s\r\n",list); //debug      
+//printf("list: %s\r\n",list); //debug
 
     /*====== File Transfer ======*/
 
-     // return if not MP3 file
+    // return if not MP3 file
     if (!((strstr(str,"MP3")!=NULL)||(strstr(str,"mp3")!=NULL))) return;
     // display filename.mp3 to the lcd screen
     lcd.printf("Now Playing: %s\r\n",str);
-    
+
     FILE *song;
     unsigned char array[512];
-        
+
     song = fopen(str, "rb");
-    
-    if(!song) 
-    {
+
+    if(!song) {
         exit(1);
     }
-   
-       while((!feof(song))&&!pause1)
-    {
-           fread(&array, 1, 512, song);
-           for(int i=0; i<512; i++)
-           {
+
+    while((!feof(song))&&!pause1) {
+        fread(&array, 1, 512, song);
+        for(int i=0; i<512; i++) {
 #ifndef FS_ONLY
             sdi_write(array[i]);
-        //    printf(".");
+            //    printf(".");
 #endif
-           }
+        }
 #ifndef FS_ONLY
-            volume();
+        volume();
 #endif
-       }
-    for(int n=0; n<2048; n++)
-       {
+    }
+    for(int n=0; n<2048; n++) {
 #ifndef FS_ONLY
-           sdi_write(0x00);
+        sdi_write(0x00);
 #endif
-       }
+    }
     fclose(song);                                //close the file
+    lcd.printf("Done Playing: %s\r\n\n",str);
+    lcd.printf("                                                    \n");
 }