src/modules/utils/pausebutton/PauseButton.cpp

   1 #include "libs/Kernel.h"
   2 #include "PauseButton.h"
   3 #include "libs/nuts_bolts.h"
   4 #include "libs/utils.h"
   5 #include "Config.h"
   6 #include "SlowTicker.h"
   7 #include "Pauser.h"
   8
   9 #include <string>
  10 using namespace std;
  11
  12 PauseButton::PauseButton(){}
  13
  14 void PauseButton::on_module_loaded(){
  15     this->button_state = true;
  16     this->play_state   = true;
  17
  18     this->enable     =  THEKERNEL->config->value( pause_button_enable_checksum )->by_default(false)->as_bool();
  19     this->button.from_string( THEKERNEL->config->value( pause_button_pin_checksum )->by_default("2.12")->as_string())->as_input();
  20
  21     THEKERNEL->slow_ticker->attach( 100, this, &PauseButton::button_tick );
  22 }
  23
  24 //TODO: Make this use InterruptIn
  25 //Check the state of the button and act accordingly
  26 uint32_t PauseButton::button_tick(uint32_t dummy){
  27     if(!this->enable) return 0;
  28     // If button changed
  29     bool newstate = this->button.get();
  30     if(this->button_state != newstate){
  31         this->button_state = newstate;
  32         // If button pressed
  33         if( this->button_state ){
  34             if( this->play_state ){
  35                 this->play_state = false;
  36                 THEKERNEL->pauser->take();
  37             }else{
  38                 this->play_state = true;
  39                 THEKERNEL->pauser->release();
  40             }
  41         }
  42     }
  43     return 0;
  44 }