player.cpp

00001 #include "player.h"
00002 #include"SDFileSystem.h"
00003 
00004 SDFileSystem sd(D11, D12, D13, D9, "sd"); // the pinout on the mbed Cool
00005 vs10xx vs1053(D11, D12, D13, D6, D7, D2, D8);//mosi,miso,sclk,xcs,xdcs,dreq,xreset 3spi+chip select
00006 Serial aa(USBTX, USBRX);
00007 Serial pc(D1, D0);
00008 playerStatetype  playerState;
00009 static unsigned char fileBuf[48000];
00010 unsigned char *bufptr;
00011 char green;
00012 bool startplaysong;
00013 bool playsong;
00014 char datainput;
00015 
00016 char list[20][50];            //song list
00017 
00018 char data ;
00019 DigitalIn sw_in(USER_BUTTON);
00020 
00021 void Player::begin(void)
00022 {
00023     DirHandle *dir;
00024     struct dirent *ptr;
00025         FileHandle *fp;
00026    
00027     vs1053.reset();
00028     dir = opendir("/sd");
00029     //printf("\r\n**********playing list**********\r\n");
00030     unsigned char i = 0,j=0;
00031     while(((ptr = dir->readdir()) != NULL)&&(i <20))
00032     {
00033         if(strstr(ptr->d_name,".mp3")||strstr(ptr->d_name,".MP3"))
00034         {
00035                             fp =sd.open(ptr->d_name, O_RDONLY);
00036                             if(fp != NULL) 
00037                             {
00038                                 char *byte = ptr->d_name;
00039                                 j=0;
00040                                 while(*byte){
00041                                     list[i][j++]  = *byte++;
00042                                     green=i;
00043                 }
00044                 aa.printf("%2d . %s\r\n", i,list[i++]);
00045                 //fp->close();
00046                             }
00047         }
00048     }
00049         dir->closedir();
00050 }
00051 
00052 
00053 
00054 
00055 
00056 /*  select file by num.  */
00057 void Player::selectfile(char n){
00058 
00059     startplaysong=false;
00060     playerState =PS_STOP;
00061     playsong=false;
00062     green = n;
00063     }
00064     
00065     
00066     
00067 /*  This function stop an audio file.  */
00068 void Player::stop(void){
00069     startplaysong=true;
00070     playerState =PS_STOP;
00071     }
00072     
00073     
00074 void Player::run(void){ 
00075             if(datainput=='0'){
00076                 selectfile(0);
00077                 playFile(list[green]);
00078                 //stop();
00079                 }
00080             if(datainput=='1'){
00081                 selectfile(1);
00082                 playFile(list[green]);
00083                 //stop();
00084                 
00085                 }
00086             if(datainput=='2'){
00087                 selectfile(2);
00088                 playFile(list[green]);
00089                 //stop();
00090                 }
00091             if(datainput=='3'){
00092                 selectfile(3);
00093                 playFile(list[green]);
00094                 //stop();
00095                 }
00096             if(datainput=='4'){
00097                 selectfile(4);
00098                 playFile(list[green]);
00099                 //stop();
00100                 }
00101             if(datainput=='5'){
00102                 selectfile(5);
00103                 playFile(list[green]);
00104                 //stop();
00105                 }
00106             else{
00107                 stop();
00108                 }
00109 }
00110 
00111 
00112 
00113 void Player::read(void){
00114     pc.readable();
00115     datainput = pc.getc();
00116 
00117     }
00118 
00119     
00120     
00121 /*  This function plays audio file.  */
00122 void Player::playFile(char *file) {
00123     int bytes;        // How many bytes in buffer left
00124     char n;
00125     
00126     playerState = PS_PLAY;
00127     
00128     vs1053.setFreq(24000000);     //hight speed
00129     
00130     FileHandle *fp =sd.open(file, O_RDONLY);
00131     
00132     if(fp == NULL) {
00133         printf("Could not open %s\r\n",file);
00134 
00135     }
00136     else
00137     {
00138         printf("Playing %s ...\r\n",file);
00139         
00140         /* Main playback loop */
00141         while((bytes = fp->read(fileBuf,48000)) > 0) {  
00142        {
00143             pc.printf("green\n");
00144             if(pc.readable()){
00145                 break;
00146                 //stop();
00147                 }
00148             vs1053.setFreq(24000000); 
00149             bufptr = fileBuf;
00150             // actual audio data gets sent to VS10xx.
00151             while(bytes > 0)
00152             {
00153                 n = (bytes < 32)?bytes:32; //defalt 32 
00154                 vs1053.writeData(bufptr,n);
00155                 bytes -= n;
00156                 bufptr += n;
00157                 if(pc.readable()){
00158                     break;
00159                     //stop();
00160                 }
00161                 
00162             }
00163             uint8_t vol = 0x00;//set vlume
00164             vs1053.setVolume(vol);  //set vlume
00165             
00166             if(playerState != PS_PLAY)         //stop
00167             {
00168                 fp->close();
00169                 vs1053.softReset();
00170             }
00171                 
00172             }
00173         }
00174     }
00175 
00176 }
00177