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final deep sleep refactor: retain RAM, call it shallow sleep mode

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This commit is contained in:
Joey Castillo
2021-09-23 14:57:30 -04:00
parent fd5e8046d0
commit a23901f843
3 changed files with 80 additions and 63 deletions
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35
apps/Sensor Watch Starter Project/app.c
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@@ -21,7 +21,7 @@ typedef struct ApplicationState {
LightColor color;
bool light_on;
uint8_t wake_count;
bool enter_deep_sleep;
bool enter_sleep_mode;
} ApplicationState;
ApplicationState application_state;
@@ -57,13 +57,7 @@ void app_init() {
* @see watch_enter_deep_sleep()
*/
void app_wake_from_deep_sleep() {
// retrieve our application state from the backup registers
application_state.mode = (ApplicationMode)watch_get_backup_data(0);
application_state.color = (LightColor)watch_get_backup_data(1);
application_state.wake_count = (uint8_t)watch_get_backup_data(2) + 1;
// wait a moment for the user's finger to be off the button
delay_ms(250);
// this app only supports shallow sleep mode.
}
/**
@@ -151,22 +145,21 @@ bool app_loop() {
break;
}
if (application_state.enter_deep_sleep) {
application_state.enter_deep_sleep = false;
// stash our application state in the backup registers
watch_store_backup_data((uint32_t)application_state.mode, 0);
watch_store_backup_data((uint32_t)application_state.color, 1);
watch_store_backup_data((uint32_t)application_state.wake_count, 2);
// turn off the LED
watch_set_led_off();
if (application_state.enter_sleep_mode) {
// wait a moment for the user's finger to be off the button
delay_ms(250);
// nap time :)
watch_enter_deep_sleep(NULL);
watch_enter_shallow_sleep(NULL);
// we just woke up; wait a moment again for the user's finger to be off the button...
delay_ms(250);
// and prevent ourselves from going right back to sleep.
application_state.enter_sleep_mode = false;
// finally, after sleep, return false so that our app loop runs again and updates the display.
return false;
}
return true;
@@ -191,5 +184,5 @@ void cb_mode_pressed() {
}
void cb_alarm_pressed() {
application_state.enter_deep_sleep = true;
application_state.enter_sleep_mode = true;
}