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/*
* Copyright (c) 2015-2016, Texas Instruments Incorporated
* 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 Texas Instruments Incorporated 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 COPYRIGHT OWNER OR
* 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.
*/
/*
* ======== gpiointerrupt.c ========
*/
#include <stdint.h>
#include <stddef.h>
/* Driver Header files */
#include <ti/drivers/GPIO.h>
/* Example/Board Header files */
#include "Board.h"
/* variable to be read by GUI Composer */
int count = 0;
/*
* ======== gpioButtonFxn0 ========
* Callback function for the GPIO interrupt on Board_GPIO_BUTTON0.
*/
void gpioButtonFxn0(uint_least8_t index)
{
/* Clear the GPIO interrupt and toggle an LED */
GPIO_toggle(Board_GPIO_LED0);
if (count++ == 100) {
count = 0;
}
}
/*
* ======== gpioButtonFxn1 ========
* Callback function for the GPIO interrupt on Board_GPIO_BUTTON1.
* This may not be used for all boards.
*/
void gpioButtonFxn1(uint_least8_t index)
{
/* Clear the GPIO interrupt and toggle an LED */
GPIO_toggle(Board_GPIO_LED1);
if (count++ == 100) {
count = 0;
}
}
/*
* ======== mainThread ========
*/
void *mainThread(void *arg0)
{
/* Call driver init functions */
GPIO_init();
/* Turn on user LED */
GPIO_write(Board_GPIO_LED0, Board_GPIO_LED_ON);
/* install Button callback */
GPIO_setCallback(Board_GPIO_BUTTON0, gpioButtonFxn0);
/* Enable interrupts */
GPIO_enableInt(Board_GPIO_BUTTON0);
/*
* If more than one input pin is available for your device, interrupts
* will be enabled on Board_GPIO_BUTTON1.
*/
if (Board_GPIO_BUTTON0 != Board_GPIO_BUTTON1) {
/* Install Button callback */
GPIO_setCallback(Board_GPIO_BUTTON1, gpioButtonFxn1);
GPIO_enableInt(Board_GPIO_BUTTON1);
}
return (NULL);
}
