Diff: ToggleFlash.cpp

Revision:

0:32fa44559a40

Child:

3:dbd7ab16f171

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/ToggleFlash.cpp	Sat Dec 22 21:07:34 2012 +0000
@@ -0,0 +1,58 @@
+/* Copyright (c) <2012> <P. Patel>, MIT License
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy of this software 
+ * and associated documentation files (the "Software"), to deal in the Software without restriction, 
+ * including without limitation the rights to use, copy, modify, merge, publish, distribute, 
+ * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is 
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all copies or 
+ * substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING 
+ * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+  
+#include "mbed.h"
+#include "ToggleFlash.h"
+  
+void ToggleFlash::toggle() {
+    _pin = !_pin;                    // Toggle pin
+}
+ToggleFlash::ToggleFlash(PinName pin) : _pin(pin) {
+    _pin = 0;                        // Drive pin low on startup
+}
+ToggleFlash::ToggleFlash(PinName pin, float time) : _pin(pin) {
+    _pin = 0;                        // Drive pin low on startup
+    _time = time;                    // Set given time
+}
+void ToggleFlash::setTime(float time) {
+    if (_time == time) return;       // Do nothing if time already correct
+    _time = time;                    // Set new time
+    if (_flasherState != 0) {        // Refresh the flasher if it was currently flashing
+        _flasher.detach();
+        _flasher.attach(this, &ToggleFlash::toggle, _time);
+    }
+}
+float ToggleFlash::getTime() {
+    return _time;                    // Return current time setting
+ }
+void ToggleFlash::enable() {
+    if (_flasherState != 0) return;  // Do nothing if its already flashing
+    _flasher.attach(this, &ToggleFlash::toggle, _time);  // Else attach current time setting
+    _flasherState = 1;               // Update state tracker
+} 
+void ToggleFlash::disableTo(int state) {
+    _flasher.detach();               // Stop flashing
+    _flasherState = 0;               // Update state tracker
+    _pin = state;                    // Drive pin to state
+}
+int ToggleFlash::readFlasher() {
+    return _flasherState;            // Return state of the flasher
+}
+int ToggleFlash::read() {
+    return _pin;                     // Return state of the pin
+}
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