95 static esp_err_t timer_insert(esp_timer_handle_t timer, bool without_update_alarm);
96 static esp_err_t timer_remove(esp_timer_handle_t timer);
97 static bool timer_armed(esp_timer_handle_t timer);
102 static void timer_insert_inactive(esp_timer_handle_t timer);
103 static void timer_remove_inactive(esp_timer_handle_t timer);
170 esp_err_t IRAM_ATTR esp_timer_restart(esp_timer_handle_t timer, uint64_t timeout_us)  in esp_timer_restart()  argument
174     if (timer == NULL) {  in esp_timer_restart()
182     esp_timer_dispatch_t dispatch_method = timer->flags & FL_ISR_DISPATCH_METHOD;  in esp_timer_restart()
185     if (!timer_armed(timer)) {  in esp_timer_restart()
191     const uint64_t period = timer->period;  in esp_timer_restart()
196     ret = timer_remove(timer);  in esp_timer_restart()
205             timer->alarm = now + new_period;  in esp_timer_restart()
206             timer->period = new_period;  in esp_timer_restart()
209             timer->alarm = now + timeout_us;  in esp_timer_restart()
210             timer->period = 0;  in esp_timer_restart()
212         ret = timer_insert(timer, false);  in esp_timer_restart()
220 esp_err_t IRAM_ATTR esp_timer_start_once(esp_timer_handle_t timer, uint64_t timeout_us)  in esp_timer_start_once()  argument
222     if (timer == NULL) {  in esp_timer_start_once()
229     esp_timer_dispatch_t dispatch_method = timer->flags & FL_ISR_DISPATCH_METHOD;  in esp_timer_start_once()
239     if (timer_armed(timer)) {  in esp_timer_start_once()
242         timer->alarm = alarm;  in esp_timer_start_once()
243         timer->period = 0;  in esp_timer_start_once()
245         timer->times_armed++;  in esp_timer_start_once()
247         err = timer_insert(timer, false);  in esp_timer_start_once()
254 esp_err_t IRAM_ATTR esp_timer_start_periodic(esp_timer_handle_t timer, uint64_t period_us)  in esp_timer_start_periodic()  argument
256     if (timer == NULL) {  in esp_timer_start_periodic()
264     esp_timer_dispatch_t dispatch_method = timer->flags & FL_ISR_DISPATCH_METHOD;  in esp_timer_start_periodic()
269     if (timer_armed(timer)) {  in esp_timer_start_periodic()
272         timer->alarm = alarm;  in esp_timer_start_periodic()
273         timer->period = period_us;  in esp_timer_start_periodic()
275         timer->times_armed++;  in esp_timer_start_periodic()
276         timer->times_skipped = 0;  in esp_timer_start_periodic()
278         err = timer_insert(timer, false);  in esp_timer_start_periodic()
285 esp_err_t IRAM_ATTR esp_timer_stop(esp_timer_handle_t timer)  in esp_timer_stop()  argument
290     esp_timer_dispatch_t dispatch_method = timer->flags & FL_ISR_DISPATCH_METHOD;  in esp_timer_stop()
296     if (!timer_armed(timer)) {  in esp_timer_stop()
299         err = timer_remove(timer);  in esp_timer_stop()
305 esp_err_t esp_timer_delete(esp_timer_handle_t timer)  in esp_timer_delete()  argument
307     if (timer == NULL) {  in esp_timer_delete()
315      if (timer_armed(timer)) {  in esp_timer_delete()
322         timer->flags &= ~FL_ISR_DISPATCH_METHOD;  in esp_timer_delete()
323         timer->event_id = EVENT_ID_DELETE_TIMER;  in esp_timer_delete()
324         timer->alarm = alarm;  in esp_timer_delete()
325         timer->period = 0;  in esp_timer_delete()
326         err = timer_insert(timer, false);  in esp_timer_delete()
332 static IRAM_ATTR esp_err_t timer_insert(esp_timer_handle_t timer, bool without_update_alarm)  in timer_insert()  argument
335     timer_remove_inactive(timer);  in timer_insert()
338     esp_timer_dispatch_t dispatch_method = timer->flags & FL_ISR_DISPATCH_METHOD;  in timer_insert()
340         LIST_INSERT_HEAD(&s_timers[dispatch_method], timer, list_entry);  in timer_insert()
343             if (timer->alarm < it->alarm) {  in timer_insert()
344                 LIST_INSERT_BEFORE(it, timer, list_entry);  in timer_insert()
351             LIST_INSERT_AFTER(last, timer, list_entry);  in timer_insert()
354     if (without_update_alarm == false && timer == LIST_FIRST(&s_timers[dispatch_method])) {  in timer_insert()
355         esp_timer_impl_set_alarm_id(timer->alarm, dispatch_method);  in timer_insert()
360 static IRAM_ATTR esp_err_t timer_remove(esp_timer_handle_t timer)  in timer_remove()  argument
362     esp_timer_dispatch_t dispatch_method = timer->flags & FL_ISR_DISPATCH_METHOD;  in timer_remove()
364     LIST_REMOVE(timer, list_entry);  in timer_remove()
365     timer->alarm = 0;  in timer_remove()
366     timer->period = 0;  in timer_remove()
367     if (timer == first_timer) { // if this timer was the first in the list.  in timer_remove()
376     timer_insert_inactive(timer);  in timer_remove()
383 static IRAM_ATTR void timer_insert_inactive(esp_timer_handle_t timer)  in timer_insert_inactive()  argument
385     esp_timer_dispatch_t dispatch_method = timer->flags & FL_ISR_DISPATCH_METHOD;  in timer_insert_inactive()
388         LIST_INSERT_HEAD(&s_inactive_timers[dispatch_method], timer, list_entry);  in timer_insert_inactive()
393         LIST_INSERT_BEFORE(head, timer, list_entry);  in timer_insert_inactive()
397 static IRAM_ATTR void timer_remove_inactive(esp_timer_handle_t timer)  in timer_remove_inactive()  argument
399     LIST_REMOVE(timer, list_entry);  in timer_remove_inactive()
404 static IRAM_ATTR bool timer_armed(esp_timer_handle_t timer)  in timer_armed()  argument
406     return timer->alarm > 0;  in timer_armed()
751 esp_err_t IRAM_ATTR esp_timer_get_period(esp_timer_handle_t timer, uint64_t *period)
753     if (timer == NULL || period == NULL) {
757     esp_timer_dispatch_t dispatch_method = timer->flags & FL_ISR_DISPATCH_METHOD;
760     *period = timer->period;
766 esp_err_t IRAM_ATTR esp_timer_get_expiry_time(esp_timer_handle_t timer, uint64_t *expiry)
768     if (timer == NULL || expiry == NULL) {
772     if (timer->period > 0) {
777     esp_timer_dispatch_t dispatch_method = timer->flags & FL_ISR_DISPATCH_METHOD;
780     *expiry = timer->alarm;
786 bool IRAM_ATTR esp_timer_is_active(esp_timer_handle_t timer)
788     return timer_armed(timer);