hall-pb.c

00001 #include <stdbool.h>
00002 #include <stdint.h>
00003 
00004 #include "gpio.h"
00005 #include "radiator.h"
00006 #include "program.h"
00007 #include "mstimer.h"
00008 #include "rit.h"
00009 
00010 #define HALL_PB_PIN FIO0PIN(05) // P0.05 == p29;
00011 
00012 #define        DEBOUNCE_MS    20
00013 #define      LONG_PRESS_MS  3000
00014 #define INACTIVE_REVERT_MS 30000
00015 
00016 static int ms  = 0;
00017 
00018 static void (*ritHook)();
00019     
00020 static void ritHandler()
00021 {
00022     if (ritHook) ritHook(); //Call the RIT function chain before this
00023     
00024     if (HALL_PB_PIN) { if (ms < DEBOUNCE_MS) ms++; }
00025     else             { if (ms > 0          ) ms--; }
00026 }
00027 
00028 static bool getHallPbPressed()
00029 {
00030     static bool pressed = false;
00031     if (ms >= DEBOUNCE_MS) pressed = false;
00032     if (ms <=           0) pressed = true;
00033     return pressed;
00034 }
00035 
00036 bool HallPbOverrideMode = true;
00037 
00038 void HallPbInit()
00039 {
00040     ritHook = RitHook;
00041     RitHook = ritHandler;
00042 }
00043 void HallPbMain()
00044 {
00045     static uint32_t hallButtonPushedMsTimer    = 0;
00046     static uint32_t hallButtonNotPushedMsTimer = 0;
00047     
00048     static bool buttonWasPressed     = false;
00049     static bool buttonWasLongPressed = false;
00050     
00051     bool buttonIsPressed = getHallPbPressed();
00052     bool buttonIsLongPressed;
00053     if (buttonIsPressed)
00054     {
00055         buttonIsLongPressed = MsTimerRelative(hallButtonPushedMsTimer, LONG_PRESS_MS);
00056         hallButtonNotPushedMsTimer = MsTimerCount;
00057     }
00058     else
00059     {
00060         buttonIsLongPressed = false;
00061         hallButtonPushedMsTimer = MsTimerCount;
00062     }
00063     
00064     if (buttonIsLongPressed && !buttonWasLongPressed) HallPbOverrideMode = !HallPbOverrideMode;
00065     if (MsTimerRelative(hallButtonNotPushedMsTimer, INACTIVE_REVERT_MS)) HallPbOverrideMode = true;
00066     
00067     if (!buttonIsPressed && buttonWasPressed && !buttonWasLongPressed)
00068     {
00069         if (HallPbOverrideMode) RadiatorChgOverride();
00070         else                    RadiatorChgWinter();
00071     }
00072     buttonWasPressed     = buttonIsPressed;
00073     buttonWasLongPressed = buttonIsLongPressed;
00074 }