nes-proj/os/dev/leds.c

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/*
* Copyright (c) 2005, Swedish Institute of Computer Science
* Copyright (c) 2018, 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.
*/
/*---------------------------------------------------------------------------*/
/**
* \addtogroup leds
* @{
*
* \file
* Implementation of the platform-independent aspects of the LED HAL
*/
/*---------------------------------------------------------------------------*/
#include "contiki.h"
#include "dev/gpio-hal.h"
#include "dev/leds.h"
#include <stdint.h>
#include <stdbool.h>
/*---------------------------------------------------------------------------*/
#if LEDS_LEGACY_API
/*---------------------------------------------------------------------------*/
void
leds_init(void)
{
leds_arch_init();
}
/*---------------------------------------------------------------------------*/
void
leds_blink(void)
{
/* Blink all leds that were initially off. */
unsigned char blink;
blink = ~leds_arch_get();
leds_toggle(blink);
clock_delay(400);
leds_toggle(blink);
}
/*---------------------------------------------------------------------------*/
unsigned char
leds_get(void) {
return leds_arch_get();
}
/*---------------------------------------------------------------------------*/
void
leds_set(leds_mask_t ledv)
{
leds_arch_set(ledv);
}
/*---------------------------------------------------------------------------*/
void
leds_on(leds_mask_t ledv)
{
leds_arch_set(leds_arch_get() | ledv);
}
/*---------------------------------------------------------------------------*/
void
leds_off(leds_mask_t ledv)
{
leds_arch_set(leds_arch_get() & ~ledv);
}
/*---------------------------------------------------------------------------*/
void
leds_toggle(leds_mask_t ledv)
{
leds_arch_set(leds_arch_get() ^ ledv);
}
/*---------------------------------------------------------------------------*/
#else /* LEDS_LEGACY_API */
/*---------------------------------------------------------------------------*/
#if LEDS_COUNT
extern const leds_t leds_arch_leds[];
#else
static const leds_t *leds_arch_leds = NULL;
#endif
/*---------------------------------------------------------------------------*/
void
leds_init()
{
leds_num_t led;
for(led = 0; led < LEDS_COUNT; led++) {
gpio_hal_arch_pin_set_output(leds_arch_leds[led].pin);
}
leds_off(LEDS_ALL);
}
/*---------------------------------------------------------------------------*/
void
leds_single_on(leds_num_t led)
{
if(led >= LEDS_COUNT) {
return;
}
if(leds_arch_leds[led].negative_logic) {
gpio_hal_arch_clear_pin(leds_arch_leds[led].pin);
} else {
gpio_hal_arch_set_pin(leds_arch_leds[led].pin);
}
}
/*---------------------------------------------------------------------------*/
void
leds_single_off(leds_num_t led)
{
if(led >= LEDS_COUNT) {
return;
}
if(leds_arch_leds[led].negative_logic) {
gpio_hal_arch_set_pin(leds_arch_leds[led].pin);
} else {
gpio_hal_arch_clear_pin(leds_arch_leds[led].pin);
}
}
/*---------------------------------------------------------------------------*/
void
leds_single_toggle(leds_num_t led)
{
if(led >= LEDS_COUNT) {
return;
}
gpio_hal_arch_toggle_pin(leds_arch_leds[led].pin);
}
/*---------------------------------------------------------------------------*/
void
leds_on(leds_mask_t leds)
{
leds_num_t led;
for(led = 0; led < LEDS_COUNT; led++) {
if((1 << led) & leds) {
if(leds_arch_leds[led].negative_logic) {
gpio_hal_arch_clear_pin(leds_arch_leds[led].pin);
} else {
gpio_hal_arch_set_pin(leds_arch_leds[led].pin);
}
}
}
}
/*---------------------------------------------------------------------------*/
void
leds_off(leds_mask_t leds)
{
leds_num_t led;
for(led = 0; led < LEDS_COUNT; led++) {
if((1 << led) & leds) {
if(leds_arch_leds[led].negative_logic) {
gpio_hal_arch_set_pin(leds_arch_leds[led].pin);
} else {
gpio_hal_arch_clear_pin(leds_arch_leds[led].pin);
}
}
}
}
/*---------------------------------------------------------------------------*/
void
leds_toggle(leds_mask_t leds)
{
leds_num_t led;
for(led = 0; led < LEDS_COUNT; led++) {
if((1 << led) & leds) {
gpio_hal_arch_toggle_pin(leds_arch_leds[led].pin);
}
}
}
/*---------------------------------------------------------------------------*/
void
leds_set(leds_mask_t leds)
{
leds_off(LEDS_ALL);
leds_on(leds);
}
/*---------------------------------------------------------------------------*/
leds_mask_t
leds_get()
{
leds_mask_t rv = 0;
leds_num_t led;
uint8_t pin_state;
for(led = 0; led < LEDS_COUNT; led++) {
pin_state = gpio_hal_arch_read_pin(leds_arch_leds[led].pin);
if((leds_arch_leds[led].negative_logic == false && pin_state == 1) ||
(leds_arch_leds[led].negative_logic == true && pin_state == 0)) {
rv |= 1 << led;
}
}
return rv;
}
/*---------------------------------------------------------------------------*/
#endif /* LEDS_LEGACY_API */
/*---------------------------------------------------------------------------*/
/**
* @}
*/