108 lines
2.7 KiB
C
108 lines
2.7 KiB
C
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/*
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* Copyright (C) 2020, Samsung Electronics Co. Ltd. All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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*/
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#include <linux/slab.h>
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#include "../sensor/proximity.h"
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#include "../sensormanager/shub_sensor.h"
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#include "../sensormanager/shub_sensor_manager.h"
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#define PROX_AVG_READ_NUM 80
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unsigned int praw_num;
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unsigned int praw_sum;
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unsigned int praw_min;
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unsigned int praw_max;
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unsigned int praw_avg;
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void report_event_proximity_raw(void)
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{
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struct prox_raw_event *sensor_value =
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(struct prox_raw_event *)(get_sensor_event(SENSOR_TYPE_PROXIMITY_RAW)->value);
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struct proximity_raw_data *data = get_sensor(SENSOR_TYPE_PROXIMITY_RAW)->data;
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if (praw_num++ >= PROX_AVG_READ_NUM) {
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data->avg_data[PROX_RAW_AVG] = praw_sum / PROX_AVG_READ_NUM;
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data->avg_data[PROX_RAW_MIN] = praw_min;
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data->avg_data[PROX_RAW_MAX] = praw_max;
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praw_num = 0;
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praw_min = 0;
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praw_max = 0;
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praw_sum = 0;
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} else {
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praw_sum += sensor_value->prox_raw;
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if (praw_num == 1)
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praw_min = sensor_value->prox_raw;
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else if (sensor_value->prox_raw < praw_min)
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praw_min = sensor_value->prox_raw;
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if (sensor_value->prox_raw > praw_max)
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praw_max = sensor_value->prox_raw;
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}
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}
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int init_proximity_raw(bool en)
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{
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struct shub_sensor *sensor = get_sensor(SENSOR_TYPE_PROXIMITY_RAW);
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if (!sensor)
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return 0;
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if (en) {
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strcpy(sensor->name, "proximity_raw");
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sensor->hal_sensor = false;
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sensor->receive_event_size = 2;
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sensor->report_event_size = 0;
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sensor->event_buffer.value = kzalloc(sizeof(struct prox_raw_event), GFP_KERNEL);
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if (!sensor->event_buffer.value)
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goto err_no_mem;
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sensor->data = kzalloc(sizeof(struct proximity_raw_data), GFP_KERNEL);
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if (!sensor->data)
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goto err_no_mem;
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sensor->funcs = kzalloc(sizeof(struct sensor_funcs), GFP_KERNEL);
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if (!sensor->funcs)
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goto err_no_mem;
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sensor->funcs->report_event = report_event_proximity_raw;
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} else {
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kfree(sensor->event_buffer.value);
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sensor->event_buffer.value = NULL;
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kfree(sensor->data);
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sensor->data = NULL;
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kfree(sensor->funcs);
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sensor->funcs = NULL;
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}
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return 0;
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err_no_mem:
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kfree(sensor->event_buffer.value);
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sensor->event_buffer.value = NULL;
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kfree(sensor->data);
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sensor->data = NULL;
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kfree(sensor->funcs);
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sensor->funcs = NULL;
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return -ENOMEM;
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}
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