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/*
* MIT License
*
* Copyright (c) 2022 Joey Castillo
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <stdlib.h>
#include <string.h>
#include "lis2dw_logging_face.h"
#include "lis2dw.h"
#include "watch.h"
// This watch face is just for testing; if we want to build accelerometer support, it will likely have to be part of Movement itself.
// The watch face only logs events when it is on screen and not in low energy mode, so you should set LE mode to Never when using it
// and make it the first watch face in the list (so we come back to it from other modes).
// On an interrupt, it flashes the Signal icon, and displays the axis or axes that were over the threshold.
// The main display contains, from left to right, the number of interrupt events that were detected in each of the last three minutes.
// Pressing the alarm button enters the log mode, where the main display shows the number of interrupts detected in each of the last
// 24 hours (the hour is shown in the top right digit and AM/PM indicator, if the clock is set to 12 hour mode)
static void _lis2dw_logging_face_update_display(movement_settings_t *settings, lis2dw_logger_state_t *logger_state, lis2dw_wakeup_source wakeup_source) {
char buf[14];
char time_indication_character;
int8_t pos;
watch_date_time date_time;
if (logger_state->log_ticks) {
pos = (logger_state->data_points - 1 - logger_state->display_index) % LIS2DW_LOGGING_NUM_DATA_POINTS;
if (pos < 0) {
watch_clear_colon();
sprintf(buf, "NO data ");
} else {
date_time = logger_state->data[pos].timestamp;
watch_set_colon();
if (settings->bit.clock_mode_24h) {
watch_set_indicator(WATCH_INDICATOR_24H);
} else {
if (date_time.unit.hour > 11) watch_set_indicator(WATCH_INDICATOR_PM);
date_time.unit.hour %= 12;
if (date_time.unit.hour == 0) date_time.unit.hour = 12;
}
switch (logger_state->axis_index) {
case 0:
sprintf(buf, "3A%2d%02d%4lu", date_time.unit.hour, date_time.unit.minute, logger_state->data[pos].x_interrupts + logger_state->data[pos].y_interrupts + logger_state->data[pos].z_interrupts);
break;
case 1:
sprintf(buf, "XA%2d%02d%4lu", date_time.unit.hour, date_time.unit.minute, logger_state->data[pos].x_interrupts);
break;
case 2:
sprintf(buf, "YA%2d%02d%4lu", date_time.unit.hour, date_time.unit.minute, logger_state->data[pos].y_interrupts);
break;
case 3:
sprintf(buf, "ZA%2d%02d%4lu", date_time.unit.hour, date_time.unit.minute, logger_state->data[pos].z_interrupts);
break;
}
}
} else {
date_time = watch_rtc_get_date_time();
watch_clear_colon();
watch_clear_indicator(WATCH_INDICATOR_PM);
watch_clear_indicator(WATCH_INDICATOR_24H);
if ((59 - date_time.unit.second) < 10) time_indication_character = '0' + (59 - date_time.unit.second);
else time_indication_character = (date_time.unit.second % 2) ? 'i' : '_';
sprintf(buf, "%c%c%c%c%2d%2d%2d",
(wakeup_source & LIS2DW_WAKEUP_SRC_WAKEUP_Y) ? 'Y' : ' ',
(wakeup_source & LIS2DW_WAKEUP_SRC_WAKEUP_X) ? 'X' : ' ',
(wakeup_source & LIS2DW_WAKEUP_SRC_WAKEUP_Z) ? 'Z' : ' ',
time_indication_character,
logger_state->interrupts[0],
logger_state->interrupts[1],
logger_state->interrupts[2]);
}
watch_display_string(buf, 0);
}
static void _lis2dw_logging_face_log_data(lis2dw_logger_state_t *logger_state) {
watch_date_time date_time = watch_rtc_get_date_time();
// we get this call 15 minutes late; i.e. at 6:15 we're logging events for 6:00.
// so: if we're at the top of the hour, roll the hour back too (7:00 task logs data for 6:45)
if (date_time.unit.minute == 0) date_time.unit.hour = (date_time.unit.hour + 23) % 24;
// // then roll the minute back.
date_time.unit.minute = (date_time.unit.minute + 45) % 60;
size_t pos = logger_state->data_points % LIS2DW_LOGGING_NUM_DATA_POINTS;
logger_state->data[pos].timestamp.reg = date_time.reg;
logger_state->data[pos].x_interrupts = logger_state->x_interrupts_this_hour;
logger_state->data[pos].y_interrupts = logger_state->y_interrupts_this_hour;
logger_state->data[pos].z_interrupts = logger_state->z_interrupts_this_hour;
logger_state->data_points++;
logger_state->x_interrupts_this_hour = 0;
logger_state->y_interrupts_this_hour = 0;
logger_state->z_interrupts_this_hour = 0;
}
void lis2dw_logging_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
(void) settings;
(void) watch_face_index;
if (*context_ptr == NULL) {
*context_ptr = malloc(sizeof(lis2dw_logger_state_t));
memset(*context_ptr, 0, sizeof(lis2dw_logger_state_t));
watch_enable_i2c();
lis2dw_begin();
lis2dw_set_low_power_mode(LIS2DW_LP_MODE_2); // lowest power 14-bit mode, 25 Hz is 3.5 µA @ 1.8V w/ low noise, 3µA without
lis2dw_set_low_noise_mode(true); // consumes a little more power
lis2dw_set_range(LIS2DW_CTRL6_VAL_RANGE_4G);
lis2dw_set_data_rate(LIS2DW_DATA_RATE_25_HZ); // is this enough for training?
// threshold is 1/64th of full scale, so for a FS of ±4G this is 1.25G
lis2dw_configure_wakeup_int1(10, true, false);
}
}
void lis2dw_logging_face_activate(movement_settings_t *settings, void *context) {
lis2dw_logger_state_t *logger_state = (lis2dw_logger_state_t *)context;
// force two settings: never enter low energy mode, and always snap back to screen 0.
// this assumes the accelerometer face is first in the watch_faces list.
settings->bit.le_interval = 0;
settings->bit.to_always = true;
logger_state->display_index = 0;
logger_state->log_ticks = 0;
watch_enable_digital_input(A0);
}
bool lis2dw_logging_face_loop(movement_event_t event, movement_settings_t *settings, void *context) {
lis2dw_logger_state_t *logger_state = (lis2dw_logger_state_t *)context;
lis2dw_wakeup_source wakeup_source = 0;
lis2dw_interrupt_source interrupt_source = 0;
switch (event.event_type) {
case EVENT_MODE_BUTTON_UP:
movement_move_to_next_face();
break;
case EVENT_LIGHT_LONG_PRESS:
movement_illuminate_led();
break;
case EVENT_LIGHT_BUTTON_DOWN:
logger_state->axis_index = (logger_state->axis_index + 1) % 4;
logger_state->log_ticks = 255;
_lis2dw_logging_face_update_display(settings, logger_state, wakeup_source);
break;
case EVENT_ALARM_BUTTON_UP:
if (logger_state->log_ticks) logger_state->display_index = (logger_state->display_index + 1) % LIS2DW_LOGGING_NUM_DATA_POINTS;
logger_state->log_ticks = 255;
logger_state->axis_index = 0;
_lis2dw_logging_face_update_display(settings, logger_state, wakeup_source);
break;
case EVENT_ACTIVATE:
case EVENT_TICK:
if (logger_state->log_ticks > 0) {
logger_state->log_ticks--;
} else {
logger_state->display_index = 0;
}
interrupt_source = lis2dw_get_interrupt_source();
if (interrupt_source) {
watch_set_indicator(WATCH_INDICATOR_SIGNAL);
wakeup_source = lis2dw_get_wakeup_source();
logger_state->interrupts[0]++;
if (wakeup_source & LIS2DW_WAKEUP_SRC_WAKEUP_X) logger_state->x_interrupts_this_hour++;
if (wakeup_source & LIS2DW_WAKEUP_SRC_WAKEUP_Y) logger_state->y_interrupts_this_hour++;
if (wakeup_source & LIS2DW_WAKEUP_SRC_WAKEUP_Z) logger_state->z_interrupts_this_hour++;
} else {
watch_clear_indicator(WATCH_INDICATOR_SIGNAL);
}
_lis2dw_logging_face_update_display(settings, logger_state, wakeup_source);
break;
case EVENT_BACKGROUND_TASK:
_lis2dw_logging_face_log_data(logger_state);
break;
default:
break;
}
return true;
}
void lis2dw_logging_face_resign(movement_settings_t *settings, void *context) {
(void) settings;
(void) context;
watch_disable_digital_input(A0);
}
bool lis2dw_logging_face_wants_background_task(movement_settings_t *settings, void *context) {
(void) settings;
lis2dw_logger_state_t *logger_state = (lis2dw_logger_state_t *)context;
watch_date_time date_time = watch_rtc_get_date_time();
// this is kind of an abuse of the API, but, let's use the 1 minute tick to shift all our data over.
logger_state->interrupts[2] = logger_state->interrupts[1];
logger_state->interrupts[1] = logger_state->interrupts[0];
logger_state->interrupts[0] = 0;
// and do our logging task every 15 minutes
return (date_time.unit.minute % 15) == 0;
}
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