Diff: HSP/Devices/PushButton/PushButton.cpp

Revision:

21:51e162c130a9

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/HSP/Devices/PushButton/PushButton.cpp	Thu Jul 16 14:59:04 2020 +0000
@@ -0,0 +1,81 @@
+/*******************************************************************************
+ * Copyright (C) 2016 Maxim Integrated Products, Inc., All Rights Reserved.
+ *
+ * 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 MAXIM INTEGRATED 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.
+ *
+ * Except as contained in this notice, the name of Maxim Integrated
+ * Products, Inc. shall not be used except as stated in the Maxim Integrated
+ * Products, Inc. Branding Policy.
+ *
+ * The mere transfer of this software does not imply any licenses
+ * of trade secrets, proprietary technology, copyrights, patents,
+ * trademarks, maskwork rights, or any other form of intellectual
+ * property whatsoever. Maxim Integrated Products, Inc. retains all
+ * ownership rights.
+ *******************************************************************************
+ */
+
+#include "PushButton.h"
+#include "Peripherals.h"
+
+PushButton::PushButton(PinName pin) : interruptButton(pin) {
+  this->pin = pin;
+
+  interruptButton.mode(PullUp);
+  debouncingState = false;
+  // Delay for initial pullup to take effect
+  wait(0.01f);
+  // Attach the address of the interrupt handler routine for pushbutton
+  interruptButton.fall(callback(this, &PushButton::pb_hit_interrupt_fall));
+}
+
+bool PushButton::GetButtonFallState(void) { 
+ return buttonFallState; 
+}
+
+void PushButton::SetButtonFallState(bool state) { 
+ buttonFallState = state; 
+}
+
+void PushButton::clearButtonFallState(void) { 
+ buttonFallState = false; 
+}
+
+int PushButton::Read(void) { 
+ return interruptButton.read(); 
+}
+
+void PushButton::pb_hit_interrupt_fall(void) {
+    /* switch debouncing */
+    if (!debouncingState)
+    {
+        timeout.attach(callback(this, &PushButton::pb_debounce_timeout), debounceTime);
+    }   
+}
+
+void PushButton::pb_debounce_timeout(void) {
+    if (!interruptButton.read())
+    {
+        if (Peripherals::pushButton() != NULL){
+            Peripherals::pushButton()->SetButtonFallState(true);
+        }
+    }
+    debouncingState = false;
+}
+