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/* Copyright 2020 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Test body_detection algorithm
*/
#include "accelgyro.h"
#include "body_detection.h"
#include "body_detection_test_data.h"
#include "common.h"
#include "motion_common.h"
#include "motion_sense.h"
#include "test_util.h"
#include "util.h"
static struct motion_sensor_t *sensor = &motion_sensors[BASE];
static const int window_size = 50; /* sensor data rate (Hz) */
static int filler(const struct motion_sensor_t *s, const float v)
{
int resolution = s->drv->get_resolution(s);
int data_1g = BIT(resolution - 1) / s->current_range;
return (int)(v * data_1g / 9.8);
}
static void feed_body_detect_data(const struct body_detect_test_data *array,
const int idx)
{
sensor->xyz[X] = filler(sensor, array[idx].x);
sensor->xyz[Y] = filler(sensor, array[idx].y);
sensor->xyz[Z] = filler(sensor, array[idx].z);
}
static int get_trigger_time(const struct body_detect_test_data *data,
const size_t size,
const enum body_detect_states target_state)
{
int i, action_index = -1, target_index = -1;
body_detect_reset();
/*
* Clear on-body state when the window is initialized, so
* that we do not need to wait for 15 second if the testcase
* is in off-body initially.
*/
body_detect_change_state(BODY_DETECTION_OFF_BODY, false);
for (i = 0; i < size; ++i) {
enum body_detect_states motion_state;
if (data[i].action == 1 && action_index == -1) {
cprints(CC_ACCEL, "action start");
action_index = i;
}
feed_body_detect_data(data, i);
/* run the body detect */
body_detect();
/* skip if action not start yet */
if (action_index == -1)
continue;
motion_state = body_detect_get_state();
if (target_index == -1 && motion_state == target_state)
target_index = i;
}
if (target_index == -1)
return -1;
return target_index - action_index;
}
static int test_body_detect(void)
{
int ret, trigger_time;
ret = sensor->drv->set_data_rate(sensor, window_size * 1000, 0);
TEST_ASSERT(ret == EC_SUCCESS);
body_detect_set_enable(true);
/* Onbody test */
cprints(CC_ACCEL, "start OnBody test");
trigger_time = get_trigger_time(kBodyDetectOnBodyTestData,
kBodyDetectOnBodyTestDataLength,
BODY_DETECTION_OFF_BODY);
/* It should not enter off-body state ever */
TEST_ASSERT(trigger_time == -1);
/* OffOn test */
cprints(CC_ACCEL, "start Off to On test");
trigger_time = get_trigger_time(kBodyDetectOffOnTestData,
kBodyDetectOffOnTestDataLength,
BODY_DETECTION_ON_BODY);
/* It should enter on-body state in 3 seconds */
TEST_ASSERT(trigger_time >= 0 && trigger_time < 3 * window_size);
/* OnOff test */
cprints(CC_ACCEL, "start On to Off test");
trigger_time = get_trigger_time(kBodyDetectOnOffTestData,
kBodyDetectOnOffTestDataLength,
BODY_DETECTION_OFF_BODY);
/* It should enter off-body state between 15 to 20 seconds */
TEST_ASSERT(15 * window_size <= trigger_time &&
trigger_time < 20 * window_size);
return EC_SUCCESS;
}
void run_test(int argc, char **argv)
{
test_reset();
RUN_TEST(test_body_detect);
test_print_result();
}
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