Diff: main.cpp

Revision:

3:8d3cc3488cd8

Parent:

2:2b0cf4d80668

Child:

4:46da1eff72bf

--- a/main.cpp	Sun Oct 19 04:30:40 2014 +0000
+++ b/main.cpp	Mon Oct 20 05:55:05 2014 +0000
@@ -3,6 +3,9 @@
 #include "Adafruit_SSD1306.h"
 #include "PreampTDA7419.h"
 
+#define NUM_OPTIONS 12 // how many different options does the stereo have?
+char option;                               
+
 PinDetect  PinUp    ( PTA1  );
 PinDetect  PinLeft  ( PTD4  );
 PinDetect  PinRight ( PTA2  );
@@ -45,192 +48,6 @@
   display.display();    
 }
 
-////////////////////////////////////
-// register addresses for TDA7419 //
-////////////////////////////////////
-char s_main_source    = 0;
-char s_main_loud      = 1   | 0x40;
-char s_softmute       = 2   | 0x40;
-char s_volume         = 3   | 0x40;
-char s_treble         = 4   | 0x40;
-char s_middle         = 5   | 0x40;
-char s_bass           = 6   | 0x40;
-char s_second_source  = 7   | 0x40;
-char s_sub_mid_bass   = 8   | 0x40;
-char s_mix_gain       = 9   | 0x40;
-char s_atten_lf       = 10  | 0x40;
-char s_atten_rf       = 11  | 0x40;
-char s_atten_lr       = 12  | 0x40;
-char s_atten_rr       = 13  | 0x40;
-char s_atten_mix      = 14  | 0x40;
-char s_atten_sub      = 15  | 0x40;
-char s_spectrum       = 16  | 0x40;
-char s_test           = 17  | 0x40;
-
-#define NUM_OPTIONS 12 // how many different options can be selected by the display?
-char option           = NUM_OPTIONS; // selectOption() in setup to 
-                                     // set this to 0 and set up display
-char volume           = 4;
-char input            = 1;
-
-char mute             = 0;
-char mix              = 0;
-
-// for register 4 Treble Filter
-int  referenceInE     = 0;
-int  trebleCenterFreq = 0;
-int  treble;
-
-// for middle frequecy filter
-int  middleSoftStep   = 0;
-int  middleQ          = 0;
-int  middle           = 0;
-
-// for bass frequecy filter
-int  bassSoftStep     = 0;
-int  bassQ            = 0;
-int  bass             = 0;
-
-// for output attenuators
-char atten_lf  = 8;
-char atten_rf  = 8;
-char atten_lr  = 8;
-char atten_rr  = 8;
-char atten_mix = 8;
-char atten_sub = 10;
-
-
-void writeToTDA7419 (char address, char value) {
-  if (!Preamp.i2c_write(address, value)) {
-    //displayWrite("Trans Failed", 0);
-  }
-}  
-
-/////////////////////////////////
-// set the speaker attenuators //
-/////////////////////////////////
-// attenuation can be set from 0 to 11 and this is mapped to the 
-// values that the TDA7419 uses for it's attenuation (0->h60)
-
-//
-//  (FL/FR/RL/RR/SWL/SWR) (13-18)
-void TDA7419SetAttenuation(int address, int attenuation) {
-  char regAtten;
-  if (volume == 11) {  
-    regAtten = 13;
-  } else if (attenuation == 10) {
-    regAtten = 6;
-  } else {
-    regAtten = (99-(attenuation*9));
-  }
-  writeToTDA7419(address, regAtten);
-}
-
-// update all of the registers in the TDA7419
-void updateReg() {
-  char regVolume;
-  char regTreble;
-  char regMiddle;
-  char regBass;
-
-  //////////////////////////////////////////////////////////////////
-  // Calculate actual register values from the variables that the //
-  // buttons control                                              //
-  //////////////////////////////////////////////////////////////////
-
-  // set the master volume //
-  // need to calculate the regVolume from the global volume signal
-  // volume can be set from 0 to 11 and this is mapped to the 
-  // values that the TDA7419 uses for it's volume register 
-  // which are a little odd (11 is appropriate because 0->15 register
-  // values actually specify a gain,  16->96 specify attenuation)
-  if (volume == 11) {  
-    regVolume = 13;
-  } else if (volume == 10) {
-    regVolume = 6;
-  } else {
-    regVolume = (99-(volume*9));
-  }
-
-  // set the tone controls //
-  // Expect treble to have the values -5 to +5 //
-  // Expect trebleCenterFreq to be 0 to 3      //
-  // Expect referenceInE to be 0 or 1          //
-  // we define treble as -5 to +5 the TDA7419 register value is more complex
-  if (treble > 0) {
-    regTreble = 16 + (treble * 3);
-  } else if (treble == 0) {
-    regTreble = 0;
-  } else if (treble  < 0) {
-    regTreble = 0 - (treble * 3); 
-  }  
-
-  if (middle > 0) {
-    regMiddle = 16 + (middle * 3);
-  } else if (middle == 0) {
-    regMiddle = 0;
-  } else if (middle  < 0) {
-    regMiddle = 0 - (middle * 3); 
-  }  
-
-  if (bass > 0) {
-    regBass = 16 + (bass * 3);
-  } else if (bass == 0) {
-    regBass = 0;
-  } else if (bass  < 0) {
-    regBass = 0 - (bass * 3); 
-  }  
-
-  //////////////////////////  
-  // update the registers //
-  //////////////////////////  
-  writeToTDA7419(s_main_source,   ((0x78) | (input & 0x3) ));
-  writeToTDA7419(s_main_loud,      (0xc0));
-  writeToTDA7419(s_softmute,       (0xa7));
-  TDA7419SetAttenuation(s_volume,   regVolume  );
-
-  writeToTDA7419(s_treble,        
-     ( (referenceInE     &  0x1 ) << 7 ) | 
-     ( (trebleCenterFreq &  0x3 ) << 5 ) |
-     ( (regTreble        & 0x1f )      ) );
-
-  writeToTDA7419(s_middle,      
-     ( (middleSoftStep   &  0x1 ) << 7 ) | 
-     ( (middleQ          &  0x3 ) << 5 ) |
-     ( (regMiddle        & 0x1f )      ) );
-
-  writeToTDA7419(s_bass,   
-     ( (bassSoftStep     &  0x1 ) << 7 ) | 
-     ( (bassQ            &  0x3 ) << 5 ) |
-     ( (regBass          & 0x1f )      ) );
-
-  // this register allows the second source to be routed to the rear speakers
-  // not useful in the context of this project
-  writeToTDA7419(s_second_source, (0x07));
-
-  // this is the subwoofer cut-off frequency
-  // 11 which is 160Khz)
-  writeToTDA7419(s_sub_mid_bass,  (0x63));
-
-  // mix to the front speakers,  enable the sub,  no gain
-  if (mix == 1) {
-    writeToTDA7419(s_mix_gain,    (0xf7));
-  } else {
-    writeToTDA7419(s_mix_gain,    (0xf0));
-  }
-
-  TDA7419SetAttenuation(s_atten_lf,      atten_lf   );
-  TDA7419SetAttenuation(s_atten_rf,      atten_rf   );
-  TDA7419SetAttenuation(s_atten_lr,      atten_lr   );
-  TDA7419SetAttenuation(s_atten_rr,      atten_rr   );
-
-  TDA7419SetAttenuation(s_atten_mix,     atten_mix  );
-  TDA7419SetAttenuation(s_atten_sub,     atten_sub  );
-
-  writeToTDA7419       (s_spectrum,      (0x09));  
-
-}
-
 /////////////////////////////////////////////
 // Helper functions for the serial display // 
 /////////////////////////////////////////////
@@ -255,44 +72,40 @@
   switch (option) {
   case (0):  // if volume option is selected change volume when button 1 and 2 are pressed
     if (button == 2) {
-      if (volume > 0 ) {
-        volume--;
-      }
+      Preamp.decreaseVolume();
     }
     if (button == 3) {
-      if (volume < 11) {
-        volume++;
-      }
+      Preamp.increaseVolume();
     }
-    displayWrite("Volume",  volume );
+    displayWrite("Volume",  Preamp.readVolume() );
   break;
   case (1):  // manage the input - 1,2,3 are the standard single ended inputs
+      int input = Preamp.readInput();
       if (button == 2) {
-        if (input > 1) {
-          input--;
-        }
+        input--;
       }
       if (button == 3) {
-        if (input < 3) {
-          input++;
-        }
+        input++;
       }
-      displayWrite("Input",  input );
+      Preamp.setInput(input);
+      displayWrite("Input",  Preamp.readInput() );
   break;
   case (2):  // manage the treble value
     if (button == 2) {
-      if (treble > -5) {
-        treble--;
-      }
+      Preamp.decreaseTreble();
     }
     if (button == 3) {
-      if (treble < 5) {
-        treble++;
-      }
+      Preamp.increaseTreble();
     }
-    displayWrite("Treble",  treble );
+    displayWrite("Treble", Preamp.readTreble());
   break;
   case (3):  // manage the middle value
+    displayWrite("Middle", 42);
+  break;
+  }
+}
+/*
+  case (3):  // manage the middle value
     if (button == 2) {
       if (middle > -5) {
         middle--;
@@ -409,8 +222,8 @@
   break;
 
   }
-  updateReg();  // update the TDA7419 registers to reflect any values changed above
 }
+*/
 
 void UpPressed( void )
 {
@@ -458,15 +271,16 @@
     // then pass the period in microseconds for example, for 10ms :-
     //     pin.setSampleFrequency( 10000 );
     //
-    PinUp   .setSampleFrequency(); // Defaults to 20ms.
-    PinLeft .setSampleFrequency(); // Defaults to 20ms.
-    PinRight.setSampleFrequency(); // Defaults to 20ms.
-    PinDown .setSampleFrequency(); // Defaults to 20ms.
+    PinUp   .setSampleFrequency(10000); // Defaults to 20ms.
+    PinLeft .setSampleFrequency(10000); // Defaults to 20ms.
+    PinRight.setSampleFrequency(10000); // Defaults to 20ms.
+    PinDown .setSampleFrequency(10000); // Defaults to 20ms.
 
+    // option = NUM_OPTIONS;
     processButtonPress(0);
 
     while (1) {
-        wait(1);
+        wait(0.2);
     }
 
 }