-/**
- * Copyright (c) 2007 Arch Rock Corporation
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * - Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the
- * distribution.
- * - Neither the name of the Arch Rock Corporation nor the names of
- * its contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
- * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
- * ARCHED ROCK OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
- * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
- * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE
- */
-
-/**
- * Generic layer to translate a GIO into a toggle switch
- *
- * @author Gilman Tolle <gtolle@archrock.com>
- * @version $Revision$
- *
- * @author Mike Healy
- * @date May 9, 2009 - modified for use with SHIMMER2
- */
-
-#include <UserButton.h>
-
-generic module SwitchToggleC() {
- provides interface Get<bool>;
- provides interface Notify<bool>;
-
- uses interface GeneralIO;
- uses interface GpioInterrupt;
-}
-
-implementation {
- norace bool m_pinHigh;
-
- task void sendEvent();
-
- command bool Get.get() { return call GeneralIO.get(); }
-
- command error_t Notify.enable() {
- call GeneralIO.makeInput();
-
- if ( call GeneralIO.get() ) {
- m_pinHigh = TRUE;
- return call GpioInterrupt.enableFallingEdge();
- }
- else {
- m_pinHigh = FALSE;
- return call GpioInterrupt.enableRisingEdge();
- }
- }
-
- command error_t Notify.disable() {
- return call GpioInterrupt.disable();
- }
-
- async event void GpioInterrupt.fired() {
- call GpioInterrupt.disable();
-
- m_pinHigh = !m_pinHigh;
-
- post sendEvent();
- }
-
- task void sendEvent() {
- bool pinHigh;
- pinHigh = m_pinHigh;
-
- signal Notify.notify( pinHigh );
-
- if ( pinHigh ) {
- call GpioInterrupt.enableFallingEdge();
- }
- else {
- call GpioInterrupt.enableRisingEdge();
- }
- }
-}