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/*
* Copyright (c) 2017 Samsung Electronics Co., Ltd.
*
* Contact: Jin Yoon <jinny.yoon@samsung.com>
* Geunsun Lee <gs86.lee@samsung.com>
* Eunyoung Lee <ey928.lee@samsung.com>
* Junkyu Han <junkyu.han@samsung.com>
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdlib.h>
#include <unistd.h>
#include <peripheral_io.h>
#include <sys/time.h>
#include "log.h"
#include "resource_internal.h"
void resource_close_flame_sensor(int pin_num)
{
if (!resource_get_info(pin_num)->opened) return;
_I("Flame Sensor is finishing...");
peripheral_gpio_close(resource_get_info(pin_num)->sensor_h);
resource_get_info(pin_num)->opened = 0;
}
int resource_read_flame_sensor(int pin_num, uint32_t *out_value)
{
int ret = PERIPHERAL_ERROR_NONE;
if (!resource_get_info(pin_num)->opened) {
ret = peripheral_gpio_open(pin_num, &resource_get_info(pin_num)->sensor_h);
retv_if(!resource_get_info(pin_num)->sensor_h, -1);
ret = peripheral_gpio_set_direction(resource_get_info(pin_num)->sensor_h, PERIPHERAL_GPIO_DIRECTION_IN);
retv_if(ret != 0, -1);
resource_get_info(pin_num)->opened = 1;
resource_get_info(pin_num)->close = resource_close_flame_sensor;
}
/**
* This model(NS-FDSM) normally outputs 1, and outputs 0 as out_value when a flame is detected.
*/
ret = peripheral_gpio_read(resource_get_info(pin_num)->sensor_h, out_value);
retv_if(ret < 0, -1);
*out_value = !*out_value;
return 0;
}
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