src/resource/resource_touch_sensor.c

   1 /*
   2  * Copyright (c) 2017 Samsung Electronics Co., Ltd.
   3  *
   4  * Contact: Jin Yoon <jinny.yoon@samsung.com>
   5  *          Geunsun Lee <gs86.lee@samsung.com>
   6  *          Eunyoung Lee <ey928.lee@samsung.com>
   7  *          Junkyu Han <junkyu.han@samsung.com>
   8  *
   9  * Licensed under the Flora License, Version 1.1 (the License);
  10  * you may not use this file except in compliance with the License.
  11  * You may obtain a copy of the License at
  12  *
  13  * http://floralicense.org/license/
  14  *
  15  * Unless required by applicable law or agreed to in writing, software
  16  * distributed under the License is distributed on an AS IS BASIS,
  17  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  18  * See the License for the specific language governing permissions and
  19  * limitations under the License.
  20  */
  21
  22 #include <stdlib.h>
  23 #include <unistd.h>
  24 #include <peripheral_io.h>
  25 #include <sys/time.h>
  26
  27 #include "log.h"
  28 #include "resource_internal.h"
  29
  30 void resource_close_touch_sensor(int pin_num)
  31 {
  32         if (!resource_get_info(pin_num)->opened) return;
  33
  34         _I("Touch Sensor is finishing...");
  35         peripheral_gpio_close(resource_get_info(pin_num)->sensor_h);
  36         resource_get_info(pin_num)->opened = 0;
  37 }
  38
  39 int resource_read_touch_sensor(int pin_num, int *out_value)
  40 {
  41         int ret = PERIPHERAL_ERROR_NONE;
  42
  43         if (!resource_get_info(pin_num)->opened) {
  44                 _I("Touch sensor is initializing...");
  45
  46                 ret = peripheral_gpio_open(pin_num, &resource_get_info(pin_num)->sensor_h);
  47                 retv_if(!resource_get_info(pin_num)->sensor_h, -1);
  48
  49                 ret = peripheral_gpio_set_direction(resource_get_info(pin_num)->sensor_h, PERIPHERAL_GPIO_DIRECTION_IN);
  50                 retv_if(ret != 0, -1);
  51
  52                 resource_get_info(pin_num)->opened = 1;
  53         }
  54
  55         ret = peripheral_gpio_read(resource_get_info(pin_num)->sensor_h, out_value);
  56         retv_if(ret < 0, -1);
  57
  58         _I("Touch Sensor Value : %d", *out_value);
  59
  60         return 0;
  61 }