src/libs/Pin.h

   1 #ifndef PIN_H
   2 #define PIN_H
   3
   4 #include <stdlib.h>
   5 #include <stdio.h>
   6 #include <string>
   7
   8 #include "libs/LPC17xx/sLPC17xx.h" // smoothed mbed.h lib
   9 #include "PinNames.h"
  10
  11 namespace mbed {
  12     class PwmOut;
  13 }
  14
  15 class Pin {
  16     public:
  17         Pin();
  18
  19         Pin* from_string(std::string value);
  20
  21         inline bool connected(){
  22             return this->pin < 32;
  23         }
  24
  25         inline bool equals(const Pin& other) const {
  26             return (this->pin == other.pin) && (this->port == other.port);
  27         }
  28
  29         inline Pin* as_output(){
  30             if (this->pin < 32)
  31                 this->port->FIODIR |= 1<<this->pin;
  32             return this;
  33         }
  34
  35         inline Pin* as_input(){
  36             if (this->pin < 32)
  37                 this->port->FIODIR &= ~(1<<this->pin);
  38             return this;
  39         }
  40
  41         Pin* as_open_drain(void);
  42
  43         Pin* as_repeater(void);
  44
  45         Pin* pull_up(void);
  46
  47         Pin* pull_down(void);
  48
  49         Pin* pull_none(void);
  50
  51         inline bool get(){
  52
  53             if (this->pin >= 32) return false;
  54             return this->inverting ^ (( this->port->FIOPIN >> this->pin ) & 1);
  55         }
  56
  57         inline void set(bool value)
  58         {
  59             if (this->pin >= 32) return;
  60             if ( this->inverting ^ value )
  61                 this->port->FIOSET = 1 << this->pin;
  62             else
  63                 this->port->FIOCLR = 1 << this->pin;
  64         }
  65
  66         mbed::PwmOut *hardware_pwm();
  67
  68         LPC_GPIO_TypeDef* port;
  69         bool inverting;
  70         char port_number;
  71         unsigned char pin;
  72 };
  73
  74
  75
  76
  77 #endif