main.cpp

00001 #include "mbed.h"
00002 #include "rtos.h"
00003 #include "uLCD_4DGL.h"
00004 #include "ShiftBrite.h"
00005 #include "SDFileSystem.h"
00006 #include "wave_player.h"
00007 
00008 Mutex mutex;    //handles writing to the LCD
00009 Mutex mutex2;   //used for color changing
00010 DigitalOut led1(LED1);
00011 DigitalOut led2(LED2);
00012 DigitalOut led3(LED3);
00013 DigitalOut led4(LED4);
00014 Thread thread1;
00015 Thread thread2;
00016 Thread thread3;
00017 Thread thread4;
00018 DigitalOut latch(p15);
00019 DigitalOut enable(p16);
00020 SPI spi(p11, p12, p13);
00021 //uLCD_4DGL uLCD(p28,p27,p29); //(p27, p28, p30);    //tx, rx, rst
00022 uLCD_4DGL uLCD(p28, p27, p30); 
00023 ShiftBrite myBrite(p15,p16,spi); //latch, enable, spi
00024 SDFileSystem sd(p5, p6, p7, p8, "sd"); //SD card
00025 AnalogOut DACout(p18);      //must be p18
00026 RawSerial BT(p9, p10);  //bluetooth pinout
00027 int red = 200;
00028 int blue = 0;
00029 int green = 0;
00030 FILE *wave_file = NULL;        //global bc its gotta be changed by Main while running in child thread
00031 unsigned int redHex = 0xFF0000;
00032 unsigned int grnHex = 0x00FF00;
00033 unsigned int bluHex = 0x0000FF;
00034 
00035 
00036 wave_player waver(&DACout);
00037 
00038 void LCD_thread1() {
00039     while(1){    
00040         mutex.lock();
00041         uLCD.filled_circle(64, 64, 12, 0xFF0000);
00042         mutex.unlock();
00043         wait(.5);
00044         mutex.lock();
00045         uLCD.filled_circle(64, 64, 12, bluHex);
00046         mutex.unlock();
00047         wait(.5);
00048     }     
00049 }
00050 void LCD_thread2() {    //update a timer on the display every 100ms
00051     uLCD.cls();
00052     //float time = 0.0;
00053     int count =0;
00054     while(1) {
00055         Thread::wait(60);
00056         //time = time + 0.25;
00057         mutex.lock();
00058         uLCD.locate(0,0);
00059         count++;
00060         uLCD.printf("Counting! %i \n", count);
00061         mutex.unlock();
00062     }
00063 }
00064 void LED_thread() {
00065     //flash red & blue for police siren
00066     while(1){
00067         mutex2.lock();
00068         //myBrite.Write(red,green,blue);
00069         myBrite.Write(150, green, 0);
00070         mutex2.unlock();
00071         wait(.5);
00072         mutex2.lock();
00073         myBrite.Write(0,green,150);
00074         //myBrite.Write(blue,green,red);  // change LEDs so Red=OFF, Blue=ON
00075         mutex2.unlock();
00076         wait(.5); 
00077     }
00078 } 
00079 /*
00080 void BT_thread() {
00081     // use mutex to lock getc(), printf(), scanf()
00082     // don't unlock until you've checked that it's readable() 
00083     char bnum=0;
00084     while(1) {
00085         mutex.lock();
00086         if (BT.getc()=='!') {
00087             if (BT.getc()=='B') { //button data
00088                 bnum = BT.getc(); //button number
00089                 if (bnum == '1') {
00090                     green = 250;  
00091                 }
00092                 if (bnum == '2') {
00093                     
00094                 }
00095                 if (bnum == '3') {
00096                     green = 250;  
00097                 }
00098                 if (bnum == '4') {
00099                     green = 0;
00100                 }
00101                 //if ((bnum>='1')&&(bnum<='4')) //is a number button 1..4
00102                 //    myled[bnum-'1']=blue.getc()-'0'; //turn on/off that num LED
00103             }
00104         }
00105         mutex.unlock();
00106     }  
00107 }*/
00108 void sound_thread(){
00109     //FILE *wave_file;
00110     wave_file=fopen("/sd/Police_Siren.wav","r");    
00111     if (wave_file == NULL){
00112            led1=led2=led3=led4 = 1;
00113     }
00114     waver.play(wave_file);
00115     fclose(wave_file);  
00116 }
00117 int main() {
00118     thread1.start(LED_thread);  //police lights work
00119     thread2.start(LCD_thread1);
00120     thread3.start(LCD_thread2);
00121     thread4.start(sound_thread);
00122     // use mutex to lock getc(), printf(), scanf()
00123     // don't unlock until you've checked that it's readable() 
00124     
00125     char bnum=0;
00126     //
00127     while(1) {
00128         //mutex.lock();
00129         led3=0;
00130         led4=1;
00131         if (BT.getc()=='!') {
00132             if (BT.getc()=='B') { //button data
00133                 bnum = BT.getc(); //button number
00134                 mutex.unlock();
00135                 if (bnum == '1') {  //turn Green LED on
00136                     green = 250; 
00137                     led1 = 1;
00138                     led2=led3=led4=0;
00139                 }
00140                 if (bnum == '2') { // revert to normal operation
00141                     green = 0;
00142                     bluHex = 0x0000FF;
00143                     led1=led3=led4=0;
00144                     led2=1;
00145                 }
00146                 if (bnum == '3') {  // change sound file playing  
00147                     led2=led1=led4=0;
00148                     led3=1;
00149                     if ( wave_file != NULL) {
00150                         led2=1;                     // debug
00151                         //fclose(wave_file);        //stop police siren from playing
00152                         thread4.terminate();
00153                         led2=0;
00154                     }
00155                     FILE *wave_file2;
00156                     wave_file2=fopen("/sd/banker_calling.wav","r");
00157                     if (wave_file2 == NULL){
00158                         led1=led2=0;
00159                         led3=led4=1;
00160                     }
00161                     waver.play(wave_file2);
00162                     fclose(wave_file2);     
00163                     thread4.start(sound_thread);    
00164                     //wave_file=fopen("/sd/Police_Siren.wav","r");
00165                     //waver.play(wave_file); 
00166                 }
00167                 if (bnum == '4') {  // change LCD colors
00168                     bluHex = 0x00FF00;  //change the lights to flash red/grn
00169                     led2=led3=led1=0;
00170                     led4=1;
00171                 }
00172             }
00173             //mutex.unlock();
00174             led4=0;
00175             led3=1;
00176         }
00177         //mutex.unlock();
00178     } 
00179 
00180 }