Diff: Led.cpp

Revision:

0:5851c2ded0ed

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Led.cpp	Thu Dec 24 12:32:33 2015 +0000
@@ -0,0 +1,142 @@
+/***********************************************************
+Author: Bernard Borredon
+Date : 24 decembre 2015
+Version: 1.0
+  - creation.
+************************************************************/
+
+#include "Led.h"
+
+// Class LedBase
+
+/*    LedBase(PinName pin)
+ * Class constructor : create and initialize LedBase instance
+ * @param pin : name of the pin connected to the led (PinName)
+ * @returns none
+ */
+LedBase::LedBase(PinName pin) : _pin(pin) 
+{
+  
+  // Led is off
+  _pin = 0;
+  _isOn = 0;
+}
+
+/*    void toggle(void)
+ * Toggle led 
+ * @param none
+ * @returns none
+ */
+void LedBase::toggle(void)
+{
+  _isOn = !_isOn;
+  _pin = !_pin;
+}
+
+/*    void on(void)
+ * Light on led
+ * @param none
+ * @returns none
+ */
+void LedBase::on(void)
+{
+  if(!_isOn) {
+    _isOn = true;
+    _pin = 1;
+  }
+}
+
+/*    void off(void)
+ * Light off led
+ * @param none
+ * @returns none
+ */
+void LedBase::off(void)
+{
+  _isOn = false;
+  _pin = 0;
+}
+
+/*    bool LedBase::isOn(void)
+ * Get led status (on or off)
+ * @param none
+ * @returns led status (bool)
+ *      false : led is off
+ *      ture  : led is on
+ */
+bool LedBase::isOn(void)
+{
+  return(_isOn);
+}
+
+// Class Led 
+
+/*    Led(PinName pin)
+ * Class constructor : create and initialize Led instance
+ * @param pin : name of the pin connected to the led (PinName)
+ * @returns none
+ */
+Led::Led(PinName pin) : LedBase(pin)
+{
+  
+  // Create LedBase instance
+  _led = new LedBase(pin);
+}
+
+/*    void atTimer(void)
+ * Led on timer : light off the led when called (private fuction)
+ * @param none
+ * @returns none
+ */
+void Led::atTimer(void)
+{
+  _led->off();
+}
+
+/*    void toggleCB(void)
+ * Led toggle timer : toggle the led when called (private function)
+ * @param none
+ * @returns none
+ */
+void Led::toggleCB(void)
+{
+  _led->toggle();
+}
+
+/*    void Led::toggle(uint16_t period, bool mode)
+ * Periodically toggle led
+ * @param period : toggle period in ms (uinit16_t)
+ * @param mode : stop auto toggle if false (bool)
+ * @returns none
+ */
+void Led::toggle(uint16_t period, bool mode)
+{
+  timestamp_t t;
+
+  // Attach togggleCB function to _tToggle Ticker if mode is true and led is off,
+  // overwise detach the function.
+  if(mode && !_led->isOn()) {
+    t = period * 1000;
+    _tToggle.attach_us(this, &Led::toggleCB,t);
+  }
+  else {
+    _tToggle.detach();
+  }
+}
+
+/*    void pulse(uint16_t time)
+ * Light on led for a duration
+ * @param time : light on duration in ms (uint16_t)
+ * @returns none
+ */
+void Led::pulse(uint16_t time)
+{
+  timestamp_t t;
+  
+  // Attach atTimer function to _tPulse Timer if led is off.
+  if(!_led->isOn()) {
+    _led->on();
+    t = time * 1000;
+    _tPulse.attach_us(this,&Led::atTimer,t);
+  }
+}