90 lines
3.2 KiB
C
90 lines
3.2 KiB
C
/*
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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 "../utility/shub_utility.h"
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#include "../sensor/magnetometer.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 UNCAL_MAG_RECEIVE_EVENT_SIZE(x) ((x) * 6)
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void print_magnetometer_uncal_debug(void)
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{
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struct shub_sensor *sensor = get_sensor(SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED);
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struct sensor_event *event = &(sensor->last_event_buffer);
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struct uncal_mag_event *sensor_value = (struct uncal_mag_event *)(event->value);
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shub_info("%s(%u) : %d, %d, %d, %d, %d, %d (%lld) (%ums, %dms)",
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sensor->name, SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED,
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sensor_value->uncal_x, sensor_value->uncal_y, sensor_value->uncal_z,
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sensor_value->offset_x, sensor_value->offset_y, sensor_value->offset_z, event->timestamp,
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sensor->sampling_period, sensor->max_report_latency);
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}
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int get_magnetometer_uncal_sensor_value(char *dataframe, int *index, struct sensor_event *event, int frame_len)
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{
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struct shub_sensor *sensor = get_sensor(SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED);
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struct uncal_mag_event *sensor_value = (struct uncal_mag_event *)event->value;
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if (sensor->receive_event_size == sizeof(struct uncal_mag_event)) {
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memcpy(sensor_value, dataframe + *index, sizeof(struct uncal_mag_event));
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} else {
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s16 temp_mag_value[6];
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memcpy(&temp_mag_value, dataframe + *index, sizeof(temp_mag_value));
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sensor_value->uncal_x = (s32) temp_mag_value[0];
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sensor_value->uncal_y = (s32) temp_mag_value[1];
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sensor_value->uncal_z = (s32) temp_mag_value[2];
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sensor_value->offset_x = (s32) temp_mag_value[3];
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sensor_value->offset_y = (s32) temp_mag_value[4];
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sensor_value->offset_z = (s32) temp_mag_value[5];
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}
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*index += sensor->receive_event_size;
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return 0;
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}
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static struct sensor_funcs magnetometer_uncal_sensor_funcs = {
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.print_debug = print_magnetometer_uncal_debug,
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.get_sensor_value = get_magnetometer_uncal_sensor_value,
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};
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int init_magnetometer_uncal(bool en)
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{
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int ret = 0;
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struct shub_sensor *sensor = get_sensor(SENSOR_TYPE_MAGNETIC_FIELD_UNCALIBRATED);
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if (!sensor)
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return 0;
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if (en) {
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int receive_size = sensor->spec.version >= MAG_EVENT_SIZE_4BYTE_VERSION ?
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UNCAL_MAG_RECEIVE_EVENT_SIZE(sizeof(s32)) : UNCAL_MAG_RECEIVE_EVENT_SIZE(sizeof(s16));
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shub_infof("receive_event_size : %d", sensor->receive_event_size);
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ret = init_default_func(sensor, "uncal_geomagnetic_sensor", receive_size, sizeof(struct uncal_mag_event), sizeof(struct uncal_mag_event));
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sensor->report_mode_continuous = true;
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sensor->funcs = &magnetometer_uncal_sensor_funcs;
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} else {
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destroy_default_func(sensor);
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}
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return ret;
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}
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