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#include <stdio.h>
#include <string.h>
#include <limits.h>
#include "watch.h"
#include "movement.h"
#include "movement_config.h"
movement_state_t movement_state;
void * watch_face_contexts[MOVEMENT_NUM_FACES];
const int32_t movement_inactivity_deadlines[8] = {INT_MAX, 3600, 7200, 21600, 43200, 86400, 172800, 604800};
movement_event_t event;
void cb_mode_btn_interrupt();
void cb_light_btn_interrupt();
void cb_alarm_btn_interrupt();
void cb_alarm_btn_extwake();
void cb_alarm_fired();
void cb_tick();
static inline void _movement_reset_inactivity_countdown() {
// for testing, make the timeout happen 60x faster.
movement_state.le_mode_ticks = movement_inactivity_deadlines[movement_state.settings.bit.le_inactivity_interval] / 60;
}
void movement_request_tick_frequency(uint8_t freq) {
watch_rtc_disable_all_periodic_callbacks();
movement_state.subsecond = 0;
movement_state.tick_frequency = freq;
watch_rtc_register_periodic_callback(cb_tick, freq);
}
void movement_illuminate_led() {
movement_state.light_ticks = movement_state.settings.bit.led_duration;
}
void movement_move_to_face(uint8_t watch_face_index) {
movement_state.watch_face_changed = true;
movement_state.next_watch_face = watch_face_index;
}
void movement_move_to_next_face() {
movement_move_to_face((movement_state.current_watch_face + 1) % MOVEMENT_NUM_FACES);
}
void app_init() {
memset(&movement_state, 0, sizeof(movement_state));
movement_state.settings.bit.led_green_color = 0xF;
movement_state.settings.bit.button_should_sound = true;
movement_state.settings.bit.le_inactivity_interval = 1;
movement_state.settings.bit.led_duration = 3;
_movement_reset_inactivity_countdown();
}
void app_wake_from_deep_sleep() {
// This app does not support deep sleep mode.
}
void app_setup() {
static bool is_first_launch = true;
if (is_first_launch) {
for(uint8_t i = 0; i < MOVEMENT_NUM_FACES; i++) {
watch_face_contexts[i] = NULL;
is_first_launch = false;
}
}
if (movement_state.le_mode_ticks != -1) {
watch_disable_extwake_interrupt(BTN_ALARM);
watch_rtc_disable_alarm_callback();
watch_enable_external_interrupts();
watch_register_interrupt_callback(BTN_MODE, cb_mode_btn_interrupt, INTERRUPT_TRIGGER_BOTH);
watch_register_interrupt_callback(BTN_LIGHT, cb_light_btn_interrupt, INTERRUPT_TRIGGER_BOTH);
watch_register_interrupt_callback(BTN_ALARM, cb_alarm_btn_interrupt, INTERRUPT_TRIGGER_BOTH);
watch_enable_buzzer();
watch_enable_leds();
watch_enable_display();
movement_request_tick_frequency(1);
for(uint8_t i = 0; i < MOVEMENT_NUM_FACES; i++) {
watch_faces[i].setup(&movement_state.settings, &watch_face_contexts[i]);
}
watch_faces[0].activate(&movement_state.settings, watch_face_contexts[0]);
event.subsecond = 0;
event.event_type = EVENT_ACTIVATE;
}
}
void app_prepare_for_sleep() {
}
void app_wake_from_sleep() {
}
bool app_loop() {
if (movement_state.watch_face_changed) {
if (movement_state.settings.bit.button_should_sound) {
// low note for nonzero case, high note for return to watch_face 0
watch_buzzer_play_note(movement_state.next_watch_face ? BUZZER_NOTE_C7 : BUZZER_NOTE_C8, 50);
}
watch_faces[movement_state.current_watch_face].resign(&movement_state.settings, watch_face_contexts[movement_state.current_watch_face]);
movement_state.current_watch_face = movement_state.next_watch_face;
watch_clear_display();
watch_faces[movement_state.current_watch_face].activate(&movement_state.settings, watch_face_contexts[movement_state.current_watch_face]);
event.subsecond = 0;
event.event_type = EVENT_ACTIVATE;
movement_state.watch_face_changed = false;
}
// If the LED is off and should be on, turn it on
if (movement_state.light_ticks > 0 && !movement_state.led_on) {
watch_set_led_color(movement_state.settings.bit.led_red_color ? (0xF | movement_state.settings.bit.led_red_color << 4) : 0,
movement_state.settings.bit.led_green_color ? (0xF | movement_state.settings.bit.led_green_color << 4) : 0);
movement_state.led_on = true;
}
// if the LED is on and should be off, turn it off
if (movement_state.led_on && movement_state.light_ticks == 0) {
// unless the user is holding down the LIGHT button, in which case, give them more time.
if (watch_get_pin_level(BTN_LIGHT)) {
movement_state.light_ticks = 3;
} else {
watch_set_led_off();
movement_state.led_on = false;
}
}
// if we have timed out of our low energy mode countdown, enter low energy mode.
if (movement_state.le_mode_ticks == 0) {
movement_state.le_mode_ticks = -1;
watch_date_time alarm_time;
alarm_time.reg = 0;
alarm_time.unit.second = 59; // after a match, the alarm fires at the next rising edge of CLK_RTC_CNT, so 59 seconds lets us update at :00
watch_rtc_register_alarm_callback(cb_alarm_fired, alarm_time, ALARM_MATCH_SS);
watch_register_extwake_callback(BTN_ALARM, cb_alarm_btn_extwake, true);
event.event_type = EVENT_NONE;
event.subsecond = 0;
// this is a little mini-runloop.
// as long as le_mode_ticks is -1 (i.e. we are in low energy mode), we wake up here, update the screen, and go right back to sleep.
while (movement_state.le_mode_ticks == -1) {
event.event_type = EVENT_LOW_ENERGY_UPDATE;
watch_faces[movement_state.current_watch_face].loop(event, &movement_state.settings, watch_face_contexts[movement_state.current_watch_face]);
watch_enter_shallow_sleep(true);
}
// as soon as le_mode_ticks is reset by the extwake handler, we bail out of the loop and reactivate ourselves.
event.event_type = EVENT_ACTIVATE;
// this is a hack tho: waking from shallow sleep, app_setup does get called, but it happens before we have reset our ticks.
// need to figure out if there's a better heuristic for determining how we woke up.
app_setup();
}
static bool can_sleep = true;
if (event.event_type) {
event.subsecond = movement_state.subsecond;
can_sleep = watch_faces[movement_state.current_watch_face].loop(event, &movement_state.settings, watch_face_contexts[movement_state.current_watch_face]);
event.event_type = EVENT_NONE;
event.subsecond = 0;
}
return can_sleep && !movement_state.led_on;
}
movement_event_type_t _figure_out_button_event(movement_event_type_t button_down_event_type, uint8_t *down_timestamp) {
watch_date_time date_time = watch_rtc_get_date_time();
if (*down_timestamp) {
uint8_t diff = ((61 + date_time.unit.second) - *down_timestamp) % 60;
*down_timestamp = 0;
if (diff > 1) return button_down_event_type + 2;
else return button_down_event_type + 1;
} else {
*down_timestamp = date_time.unit.second + 1;
return button_down_event_type;
}
}
void cb_light_btn_interrupt() {
_movement_reset_inactivity_countdown();
event.event_type = _figure_out_button_event(EVENT_LIGHT_BUTTON_DOWN, &movement_state.light_down_timestamp);
}
void cb_mode_btn_interrupt() {
_movement_reset_inactivity_countdown();
event.event_type = _figure_out_button_event(EVENT_MODE_BUTTON_DOWN, &movement_state.mode_down_timestamp);
}
void cb_alarm_btn_interrupt() {
_movement_reset_inactivity_countdown();
event.event_type = _figure_out_button_event(EVENT_ALARM_BUTTON_DOWN, &movement_state.alarm_down_timestamp);
}
void cb_alarm_btn_extwake() {
// wake up!
_movement_reset_inactivity_countdown();
}
void cb_alarm_fired() {
event.event_type = EVENT_LOW_ENERGY_UPDATE;
}
void cb_tick() {
event.event_type = EVENT_TICK;
watch_date_time date_time = watch_rtc_get_date_time();
if (date_time.unit.second != movement_state.last_second) {
if (movement_state.light_ticks) movement_state.light_ticks--;
if (movement_state.settings.bit.le_inactivity_interval && movement_state.le_mode_ticks > 0) movement_state.le_mode_ticks--;
movement_state.last_second = date_time.unit.second;
movement_state.subsecond = 0;
} else {
movement_state.subsecond++;
}
}
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