nes-proj/examples/dev/gpio-hal/gpio-hal-example.c

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/*
* Copyright (c) 2017, George Oikonomou - http://www.spd.gr
* 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 "contiki.h"
#include "dev/gpio-hal.h"
#include "sys/etimer.h"
#include "lib/sensors.h"
#include "dev/button-hal.h"
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#include <stdio.h>
#include <inttypes.h>
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/*---------------------------------------------------------------------------*/
extern gpio_hal_pin_t out_pin1, out_pin2, out_pin3;
extern gpio_hal_pin_t btn_pin;
/*---------------------------------------------------------------------------*/
static struct etimer et;
static uint8_t counter;
/*---------------------------------------------------------------------------*/
/* Print gpio_hal_pin_mask_t using the correct format */
#if GPIO_HAL_PIN_COUNT > 32
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#define PIN_MASK_FMT "0x%016" PRIx64
#else
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#define PIN_MASK_FMT "0x%08" PRIx32
#endif
/*---------------------------------------------------------------------------*/
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PROCESS(gpio_hal_example, "GPIO HAL Example");
AUTOSTART_PROCESSES(&gpio_hal_example);
/*---------------------------------------------------------------------------*/
PROCESS_THREAD(gpio_hal_example, ev, data)
{
PROCESS_BEGIN();
counter = 0;
etimer_set(&et, CLOCK_SECOND);
while(1) {
PROCESS_YIELD();
if(ev == PROCESS_EVENT_TIMER && data == &et) {
if((counter & 7) == 0) {
/* Set output and test write, high */
gpio_hal_arch_pin_set_output(out_pin1);
gpio_hal_arch_pin_set_output(out_pin2);
gpio_hal_arch_pin_set_output(out_pin3);
gpio_hal_arch_write_pin(out_pin1, 1);
gpio_hal_arch_write_pins(
gpio_hal_pin_to_mask(out_pin2) | gpio_hal_pin_to_mask(out_pin3),
gpio_hal_pin_to_mask(out_pin2) | gpio_hal_pin_to_mask(out_pin3));
} else if((counter & 7) == 1) {
/* Test write, low */
gpio_hal_arch_write_pin(out_pin1, 0);
gpio_hal_arch_write_pins(
gpio_hal_pin_to_mask(out_pin2) | gpio_hal_pin_to_mask(out_pin3), 0);
} else if((counter & 7) == 2) {
/* Test set */
gpio_hal_arch_set_pin(out_pin1);
gpio_hal_arch_set_pins(
gpio_hal_pin_to_mask(out_pin2) | gpio_hal_pin_to_mask(out_pin3));
} else if((counter & 7) == 3) {
/* Test clear */
gpio_hal_arch_clear_pin(out_pin1);
gpio_hal_arch_clear_pins(
gpio_hal_pin_to_mask(out_pin2) | gpio_hal_pin_to_mask(out_pin3));
} else if((counter & 7) == 4) {
/* Test toggle (should go high) */
gpio_hal_arch_toggle_pin(out_pin1);
gpio_hal_arch_toggle_pins(
gpio_hal_pin_to_mask(out_pin2) | gpio_hal_pin_to_mask(out_pin3));
} else if((counter & 7) == 5) {
/* Test toggle (should go low) */
gpio_hal_arch_toggle_pin(out_pin1);
gpio_hal_arch_toggle_pins(
gpio_hal_pin_to_mask(out_pin2) | gpio_hal_pin_to_mask(out_pin3));
} else if((counter & 7) == 6) {
/* Set to input and then set. Should stay off */
gpio_hal_arch_pin_set_input(out_pin1);
gpio_hal_arch_pin_set_input(out_pin2);
gpio_hal_arch_pin_set_input(out_pin3);
gpio_hal_arch_set_pin(out_pin1);
gpio_hal_arch_set_pins(
gpio_hal_pin_to_mask(out_pin2) | gpio_hal_pin_to_mask(out_pin3));
} else if((counter & 7) == 7) {
/* Toggle button interrupt */
gpio_hal_pin_cfg_t interrupt;
interrupt = gpio_hal_arch_pin_cfg_get(btn_pin) &
GPIO_HAL_PIN_CFG_INT_ENABLE;
if(interrupt == 0) {
printf("Enabling button interrupt\n");
gpio_hal_arch_interrupt_enable(btn_pin);
} else {
printf("Disabling button interrupt\n");
gpio_hal_arch_interrupt_disable(btn_pin);
}
}
/* Test read */
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printf("%u: Pins are 1-%u, 2=%u, 3=%u, mask=" PIN_MASK_FMT "\n",
counter & 7,
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gpio_hal_arch_read_pin(out_pin1),
gpio_hal_arch_read_pin(out_pin2),
gpio_hal_arch_read_pin(out_pin3),
gpio_hal_arch_read_pins(gpio_hal_pin_to_mask(out_pin1) |
gpio_hal_pin_to_mask(out_pin2) |
gpio_hal_pin_to_mask(out_pin3)));
counter++;
etimer_set(&et, CLOCK_SECOND);
} else if(ev == button_hal_release_event) {
printf("Button release event %s\n",
BUTTON_HAL_GET_DESCRIPTION((button_hal_button_t *)data));
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}
}
PROCESS_END();
}
/*---------------------------------------------------------------------------*/