Diff: main.cpp

Revision:

7:d2fe1a5e79ed

Parent:

6:58bab17100a2

Child:

8:781b03221397

--- a/main.cpp	Tue Jul 03 03:29:59 2018 +0000
+++ b/main.cpp	Wed Jul 04 21:17:39 2018 +0000
@@ -4,7 +4,7 @@
 #include <map>
 #include <string.h>
 #include <math.h>
-
+ 
 // Define screen
 TextLCD lcd(PA_8, PA_9, PC_7, PB_6, PA_7, PA_6, PA_5); // RS, RW, E, D4-D7
  
@@ -13,7 +13,10 @@
 
 // Define the PWM speaker
 PwmOut speaker(PB_10);
-    
+
+//Define Bus In for Gamme Button
+BusIn Bus_In_Gamme(PB_9);
+   
 //Define variables for sound
 struct  NoteReference {
     char    name[4];
@@ -21,6 +24,7 @@
     double  frequency;
     double  add[4];
     };
+    
 NoteReference   noteReference[8] = {   {"Do", 0x1, 262.0, {0.0, -1.0, -1.5, -3.0}},
                                                 {"Re", 0x2, 294.0, {0.0, -1.0, -1.0, -3.0 }},
                                                 {"Mi", 0x4, 330.0, {0.0, -1.0, -1.5, -3.0}},
@@ -31,78 +35,148 @@
                                                 {"Do", 0x80, 523.0, {0.0, 0.0, 0.0, 0.0}}
                                             };
 volatile int    state_buttons = 0;
+volatile int    state_button_gamme = 0;
 volatile int    gamme = 0;
 
-void print_note(char *str)
-{
-//    lcd.cls();
-  //  wait(0.000040f);
-    lcd.printf("%s", str);
-}
-
 
-DigitalOut led1(LED1);
+//Define variable for display
+char     bufferOutput[30] = "";
 
+//Define variables for synchronization
+Mutex   lockBufferOutput;
+Mutex   lockGamme;
+ 
 void    refresh_state_button()
 {
-   //printf("refresh_state_button \n");
-   state_buttons = Bus_In & Bus_In.mask(); // read the bus and mask out bits not being used    
-   //printf("state_button [ %d ]\n", state_buttons);
+   state_buttons = Bus_In & Bus_In.mask(); // read the bus and mask out bits not being used
 }
-
+ 
 void        play_music(int notes, double frequency)
 {
-   speaker.period(1.0 / frequency);            
+   speaker.period(1.0 / frequency);
    while (state_buttons == notes) {
      refresh_state_button();
    }
 }
-
-void        check_buttons()
+ 
+void        check_buttons(double frequency, int actualGamme)
 {
-    double   frequency = 0.0;
-    int      i = 0;
-    char     bufferOutput[30] = "";
-    
     if (state_buttons == 0xFF)
     {
         speaker = 0;
-        lcd.cls();
+        lockBufferOutput.lock();
+        strcpy(bufferOutput, "");
+        lockBufferOutput.unlock();
     }
     else {
-        while (i < 8)
-        {
+        frequency = 0.0;
+        lockGamme.lock();
+        actualGamme = gamme;
+        lockGamme.unlock();
+        lockBufferOutput.lock();
+        strcpy(bufferOutput, "");
+        for (int i = 0; i < 8; i++) {
             if (!(state_buttons & noteReference[i].mask)) {
-                frequency += noteReference[i].frequency * pow(2.0, gamme) + noteReference[i].add[gamme];
+                frequency += noteReference[i].frequency * pow(2.0, (double)actualGamme) + noteReference[i].add[actualGamme];
                 strcat(bufferOutput, noteReference[i].name);
                 strcat(bufferOutput, " ");
             }
-            i++;
         }
+        lockBufferOutput.unlock();
         speaker = 0.5;
-        print_note(bufferOutput);
         play_music(state_buttons, frequency);
     }
 }
 
-// TODO: perios of notes with ID
-// TODO: implement new 4 buttons
-// TODO: link new 2 buttons + implementation
-// TODO: deal with gamme
+void    run_music()
+{
+    double  frequency = 0.0;
+    int     actualGamme = 0;
+    
+    while (true)
+    {
+        refresh_state_button();
+        check_buttons(frequency, actualGamme);
+        Thread::wait(100);
+    }
+}
 
-// TODO: PB with DO RE on the screen (board crashes)
+void    run_display()
+{
+    char    old_buffer[30] = "";
+    int    old_gamme = 0;
+    
+    lockBufferOutput.lock();
+    lockGamme.lock();
+    lcd.printf("Gamme = %d", gamme);
+    lockGamme.unlock();
+    lockBufferOutput.unlock();
+    while(true)
+    {
+        lockBufferOutput.lock();
+        if (strcmp(old_buffer, bufferOutput))
+        {
+            lcd.cls();
+            lockGamme.lock();
+            if (strcmp(bufferOutput, ""))
+                lcd.printf("%s- g[%d]", bufferOutput, gamme);
+            else
+                lcd.printf("Gamme = %d", gamme);
+            lockGamme.unlock();
+            strcpy(old_buffer, bufferOutput);
+        }
+        else {
+            lockGamme.lock();
+            if (old_gamme != gamme)
+            {
+                lcd.cls();
+                lcd.printf("Gamme = %d", gamme);
+                old_gamme = gamme;
+            }
+            lockGamme.unlock();
+        }
+        lockBufferOutput.unlock();
+        Thread::wait(100);
+    }
+}
+
+void     check_state_button_gamme()
+{
+    state_button_gamme = Bus_In_Gamme & Bus_In_Gamme.mask();
+}
+
+void    run_gamme()
+{
+    while(true)
+    {
+        check_state_button_gamme();
+        if (state_button_gamme == 0x0)
+        {
+            lockGamme.lock();
+            if (gamme == 3)
+                gamme = 0;
+            else
+                gamme++;
+            lockGamme.unlock();
+            while (state_button_gamme == 0x0)
+                check_state_button_gamme();
+        }
+        Thread::wait(100);
+    }
+}
 
 int main()
 {
-    //lcd.printf("%s\n", "CS435 Piano");
-    //wait(3);
-
-    while (true) {
-        //printf("loop\n");
-        led1 = !led1;
-        refresh_state_button();
-        check_buttons();
-        wait(0.1);
-        lcd.cls();
-    }
-}
+    Thread  music_thread;
+    Thread  display_thread;
+    Thread  gamme_thread;
+    
+    lcd.printf("CS435 : Piano Project\n");
+    wait(3);
+    lcd.cls();
+ 
+    music_thread.start(run_music);
+    display_thread.start(run_display);
+    gamme_thread.start(run_gamme);
+    while(1);
+}
\ No newline at end of file