95 lines
3.2 KiB
C
95 lines
3.2 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2015, Intel 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:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. 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.
|
||
|
|
*
|
||
|
|
* 3. Neither the name of the copyright holder 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 HOLDER 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.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdio.h>
|
||
|
|
|
||
|
|
#include "contiki.h"
|
||
|
|
#include "sys/ctimer.h"
|
||
|
|
|
||
|
|
#include "gpio.h"
|
||
|
|
#include "i2c.h"
|
||
|
|
#include "galileo-pinmux.h"
|
||
|
|
|
||
|
|
#define PIN_OUTPUT 5
|
||
|
|
#define PIN_INTR 6
|
||
|
|
|
||
|
|
static struct ctimer timer;
|
||
|
|
static struct quarkX1000_i2c_config i2c_config;
|
||
|
|
|
||
|
|
PROCESS(gpio_interrupt_process, "GPIO Interrupt Process");
|
||
|
|
AUTOSTART_PROCESSES(&gpio_interrupt_process);
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
static void
|
||
|
|
timeout(void *data)
|
||
|
|
{
|
||
|
|
/* emulate an interrupt */
|
||
|
|
quarkX1000_gpio_write(PIN_OUTPUT, 0);
|
||
|
|
quarkX1000_gpio_write(PIN_OUTPUT, 1);
|
||
|
|
|
||
|
|
ctimer_reset(&timer);
|
||
|
|
}
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
static void
|
||
|
|
callback(uint32_t status)
|
||
|
|
{
|
||
|
|
printf("GPIO interrupt callback called, status: %d\n", status);
|
||
|
|
}
|
||
|
|
/*---------------------------------------------------------------------------*/
|
||
|
|
PROCESS_THREAD(gpio_interrupt_process, ev, data)
|
||
|
|
{
|
||
|
|
PROCESS_BEGIN();
|
||
|
|
|
||
|
|
i2c_config.speed = QUARKX1000_I2C_SPEED_STANDARD;
|
||
|
|
i2c_config.addressing_mode = QUARKX1000_I2C_ADDR_MODE_7BIT;
|
||
|
|
|
||
|
|
quarkX1000_i2c_init();
|
||
|
|
quarkX1000_i2c_configure(&i2c_config);
|
||
|
|
|
||
|
|
/* use default pinmux configuration */
|
||
|
|
galileo_pinmux_initialize();
|
||
|
|
|
||
|
|
quarkX1000_gpio_init();
|
||
|
|
quarkX1000_gpio_config(PIN_OUTPUT, QUARKX1000_GPIO_OUT);
|
||
|
|
quarkX1000_gpio_config(PIN_INTR, QUARKX1000_GPIO_INT | QUARKX1000_GPIO_ACTIVE_HIGH | QUARKX1000_GPIO_EDGE);
|
||
|
|
|
||
|
|
quarkX1000_gpio_set_callback(callback);
|
||
|
|
|
||
|
|
quarkX1000_gpio_clock_enable();
|
||
|
|
|
||
|
|
ctimer_set(&timer, CLOCK_SECOND / 2, timeout, NULL);
|
||
|
|
|
||
|
|
printf("GPIO interrupt example is running\n");
|
||
|
|
PROCESS_YIELD();
|
||
|
|
|
||
|
|
quarkX1000_gpio_clock_disable();
|
||
|
|
|
||
|
|
PROCESS_END();
|
||
|
|
}
|