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movement: first crack at background tasks API

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This commit is contained in:
Joey Castillo
2021-10-23 17:55:19 -04:00
parent ee1b3c8780
commit 8475ffcd7a
4 changed files with 41 additions and 13 deletions
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31
movement/movement.c
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@@ -23,6 +23,18 @@ static inline void _movement_reset_inactivity_countdown() {
movement_state.timeout_ticks = movement_timeout_inactivity_deadlines[movement_state.settings.bit.to_interval];
}
void _movement_handle_background_tasks() {
for(uint8_t i = 0; i < MOVEMENT_NUM_FACES; i++) {
// For each face, if the watch face wants a background task...
if (watch_faces[i].wants_background_task != NULL && watch_faces[i].wants_background_task(&movement_state.settings, watch_face_contexts[i])) {
// ...we give it one. pretty straightforward!
movement_event_t background_event = { EVENT_BACKGROUND_TASK, 0 };
watch_faces[i].loop(background_event, &movement_state.settings, watch_face_contexts[i]);
}
}
movement_state.needs_background_tasks_handled = false;
}
void movement_request_tick_frequency(uint8_t freq) {
watch_rtc_disable_all_periodic_callbacks();
movement_state.subsecond = 0;
@@ -68,10 +80,15 @@ void app_setup() {
watch_face_contexts[i] = NULL;
is_first_launch = false;
}
// set up the 1 minute alarm (for background tasks and low power updates)
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);
}
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);
@@ -131,13 +148,12 @@ bool app_loop() {
event.event_type = EVENT_TIMEOUT;
}
// handle background tasks, if the alarm handler told us we need to
if (movement_state.needs_background_tasks_handled) _movement_handle_background_tasks();
// 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;
@@ -145,6 +161,9 @@ bool app_loop() {
// 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) {
// we also have to handle background tasks here in the mini-runloop
if (movement_state.needs_background_tasks_handled) _movement_handle_background_tasks();
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_sleep_mode();
@@ -202,7 +221,7 @@ void cb_alarm_btn_extwake() {
}
void cb_alarm_fired() {
event.event_type = EVENT_LOW_ENERGY_UPDATE;
movement_state.needs_background_tasks_handled = true;
}
void cb_tick() {