server/actuators/pregulator.c

   1 #include "pregulator.h"
   2 #include "../bbb_pin.h"
   3
   4 #define PREGULATOR_PWM ECAP0
   5 #define PREGULATOR_PERIOD 500000
   6 //16666667
   7
   8 /**
   9  * Initiliase the pressure regulator
  10  */
  11 bool Pregulator_Init(const char * name, int id)
  12 {
  13         return PWM_Export(PREGULATOR_PWM) && PWM_Set(PREGULATOR_PWM, false, PREGULATOR_PERIOD, 0);
  14 }
  15
  16 bool Pregulator_Cleanup(int id)
  17 {
  18         if (!PWM_Set(PREGULATOR_PWM, false, PREGULATOR_PERIOD, 0))
  19                 return false;
  20         PWM_Unexport(PREGULATOR_PWM);
  21         return true;
  22 }
  23
  24 bool Pregulator_Set(int id, double value)
  25 {
  26         return PWM_Set(PREGULATOR_PWM, false, PREGULATOR_PERIOD, value*(PREGULATOR_PERIOD));
  27 }
  28
  29 bool Pregulator_Sanity(int id, double value)
  30 {
  31         return (value >= 0.0 && value <= 1.0);
  32 }
  33