Diff: modules/utils/pausebutton/PauseButton.cpp

Revision:

0:31e91bb0ef3c

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/modules/utils/pausebutton/PauseButton.cpp	Tue Jul 31 21:11:18 2012 +0000
@@ -0,0 +1,48 @@
+#include "libs/Kernel.h"
+#include "PauseButton.h"
+#include "libs/nuts_bolts.h"
+#include "libs/utils.h"
+#include <string>
+using namespace std;
+
+PauseButton::PauseButton(){}
+
+void PauseButton::on_module_loaded(){
+    this->button_state = true;
+    this->play_state   = true;
+    this->register_for_event(ON_PLAY);
+    this->register_for_event(ON_PAUSE);
+
+    this->button     =  this->kernel->config->value( pause_button_pin_checksum )->by_default("2.12")->as_pin()->as_input();
+    this->led        =  this->kernel->config->value( pause_led_pin_checksum    )->by_default("4.28")->as_pin()->as_output();
+
+    this->kernel->slow_ticker->attach( 100, this, &PauseButton::button_tick );
+}
+
+//TODO: Make this use InterruptIn
+//Check the state of the button and act accordingly
+uint32_t PauseButton::button_tick(uint32_t dummy){
+    // If button changed 
+    if(this->button_state != this->button->get()){ 
+        this->button_state = this->button->get();
+        // If button pressed 
+        if( this->button_state ){
+            if( this->play_state ){
+                this->play_state = false;
+                this->kernel->pauser->take(); 
+            }else{
+                this->play_state = true;
+                this->kernel->pauser->release(); 
+            } 
+        } 
+    }
+}
+
+void PauseButton::on_play( void* argument ){
+    this->led->set(0);
+}
+
+void PauseButton::on_pause( void* argument ){
+    this->led->set(1);
+}
+