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movement: prevent invalid tick frequency from breaking scheduled tasks

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This commit is contained in:
Joey Castillo
2022-02-12 22:19:01 -05:00
parent 5dac14974c
commit b8cb6f3bcf
2 changed files with 7 additions and 4 deletions
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9
movement/movement.c
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@@ -152,14 +152,19 @@ static void _movement_handle_scheduled_tasks(void) {
}
void movement_request_tick_frequency(uint8_t freq) {
if (freq == 128) return; // Movement uses the 128 Hz tick internally
// Movement uses the 128 Hz tick internally
if (freq == 128) return;
// Movement requires at least a 1 Hz tick.
// If we are asked for an invalid frequency, default back to 1 Hz.
if (freq == 0 || __builtin_popcount(freq) != 1) freq = 1;
// disable all callbacks except the 128 Hz one
watch_rtc_disable_matching_periodic_callbacks(0xFE);
movement_state.subsecond = 0;
movement_state.tick_frequency = freq;
if (freq) watch_rtc_register_periodic_callback(cb_tick, freq);
watch_rtc_register_periodic_callback(cb_tick, freq);
}
void movement_illuminate_led(void) {