Diff: Trackball.h

Revision:

0:8e91b1443453

Child:

1:f0caa0dfa669

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Trackball.h	Tue Oct 20 21:11:52 2015 +0000
@@ -0,0 +1,66 @@
+#include "mbed.h"
+
+#define dir_UP 1
+#define dir_DOWN 2
+#define dir_LEFT 3
+#define dir_RIGHT 4
+#define dir_BUTTON 5
+#define color_WHITE 1
+#define color_RED 2
+#define color_GREEN 3
+#define color_BLUE 4
+
+//Setup a new class for a Trackball Module
+class Trackball
+{
+public:
+    Trackball(PinName pin_btn, PinName pin_lft, PinName pin_rht, PinName pin_up, PinName pin_dwn, PinName pin_wht, PinName pin_grn, PinName pin_red, PinName pin_blu);
+    unsigned int read(int dir);
+    void write(unsigned int val, int color);
+private:
+//class sets up the pins
+    DigitalIn _pin_btn;
+    DigitalIn _pin_lft;
+    DigitalIn _pin_rht;
+    DigitalIn _pin_up;
+    DigitalIn _pin_dwn;
+    DigitalOut _pin_wht;
+    DigitalOut _pin_grn;
+    DigitalOut _pin_red;
+    DigitalOut _pin_blu;
+};
+
+Trackball::Trackball(PinName pin_btn, PinName pin_lft, PinName pin_rht, PinName pin_up, PinName pin_dwn, PinName pin_wht, PinName pin_grn, PinName pin_red, PinName pin_blu)
+    : _pin_btn(pin_btn), _pin_lft(pin_lft), _pin_rht(pin_rht), _pin_up(pin_up), _pin_dwn(pin_dwn), _pin_wht(pin_wht), _pin_grn(pin_grn), _pin_red(pin_red), _pin_blu(pin_blu)
+{
+       //initialize all LED pins to off.
+
+    _pin_wht = 0;
+    _pin_grn = 0;
+    _pin_red = 0;
+    _pin_blu = 0;
+}
+
+void Trackball::write(unsigned int val, int color)
+
+    {
+        if (color == color_WHITE){_pin_wht = val;}
+        else if(color == color_BLUE){_pin_blu = val;}
+        else if(color == color_GREEN){_pin_grn = val;}
+        else if(color == color_RED){_pin_red = val;}
+        else {printf("Invalid LED Color");}
+    }
+unsigned int Trackball::read(int dir)
+
+    {
+        unsigned int val;
+        if(dir == dir_UP){val = _pin_up;}
+        else if(dir == dir_DOWN){val = _pin_dwn;}
+        else if(dir == dir_RIGHT){val = _pin_rht;}
+        else if(dir == dir_LEFT){val = _pin_lft;}
+        else if(dir == dir_BUTTON){val = _pin_btn;}
+        else {val = 1;}
+        
+        return val;
+        
+    }