2 files changed, 14 insertions, 17 deletions

diff --git a/src/components/alarm/AlarmController.cpp b/src/components/alarm/AlarmController.cpp
index d4122737..9f4e9105 100644
--- a/src/components/alarm/AlarmController.cpp
+++ b/src/components/alarm/AlarmController.cpp
@@ -17,7 +17,6 @@
 */
 #include "components/alarm/AlarmController.h"
 #include "systemtask/SystemTask.h"
-#include "app_timer.h"
 #include "task.h"
 #include <chrono>
 
@@ -27,20 +26,16 @@ using namespace std::chrono_literals;
 AlarmController::AlarmController(Controllers::DateTime& dateTimeController) : dateTimeController {dateTimeController} {
 }
 
-APP_TIMER_DEF(alarmAppTimer);
-
 namespace {
-  void SetOffAlarm(void* p_context) {
-    auto* controller = static_cast<Pinetime::Controllers::AlarmController*>(p_context);
-    if (controller != nullptr) {
-      controller->SetOffAlarmNow();
-    }
+  void SetOffAlarm(TimerHandle_t xTimer) {
+    auto controller = static_cast<Pinetime::Controllers::AlarmController*>(pvTimerGetTimerID(xTimer));
+    controller->SetOffAlarmNow();
   }
 }
 
 void AlarmController::Init(System::SystemTask* systemTask) {
-  app_timer_create(&alarmAppTimer, APP_TIMER_MODE_SINGLE_SHOT, SetOffAlarm);
   this->systemTask = systemTask;
+  alarmTimer = xTimerCreate("Alarm", 1, pdFALSE, this, SetOffAlarm);
 }
 
 void AlarmController::SetAlarmTime(uint8_t alarmHr, uint8_t alarmMin) {
@@ -49,8 +44,8 @@ void AlarmController::SetAlarmTime(uint8_t alarmHr, uint8_t alarmMin) {
 }
 
 void AlarmController::ScheduleAlarm() {
-  // Determine the next time the alarm needs to go off and set the app_timer
-  app_timer_stop(alarmAppTimer);
+  // Determine the next time the alarm needs to go off and set the timer
+  xTimerStop(alarmTimer, 0);
 
   auto now = dateTimeController.CurrentDateTime();
   alarmTime = now;
@@ -80,8 +75,9 @@ void AlarmController::ScheduleAlarm() {
 
   // now can convert back to a time_point
   alarmTime = std::chrono::system_clock::from_time_t(std::mktime(tmAlarmTime));
-  auto mSecToAlarm = std::chrono::duration_cast<std::chrono::milliseconds>(alarmTime - now).count();
-  app_timer_start(alarmAppTimer, APP_TIMER_TICKS(mSecToAlarm), this);
+  auto secondsToAlarm = std::chrono::duration_cast<std::chrono::seconds>(alarmTime - now).count();
+  xTimerChangePeriod(alarmTimer, secondsToAlarm * configTICK_RATE_HZ, 0);
+  xTimerStart(alarmTimer, 0);
 
   state = AlarmState::Set;
 }
@@ -91,7 +87,7 @@ uint32_t AlarmController::SecondsToAlarm() {
 }
 
 void AlarmController::DisableAlarm() {
-  app_timer_stop(alarmAppTimer);
+  xTimerStop(alarmTimer, 0);
   state = AlarmState::Not_Set;
 }
 
@@ -101,14 +97,12 @@ void AlarmController::SetOffAlarmNow() {
 }
 
 void AlarmController::StopAlerting() {
-  systemTask->PushMessage(System::Messages::StopRinging);
-
   // Alarm state is off unless this is a recurring alarm
   if (recurrence == RecurType::None) {
     state = AlarmState::Not_Set;
   } else {
-    state = AlarmState::Set;
     // set next instance
     ScheduleAlarm();
   }
+  systemTask->PushMessage(System::Messages::StopRinging);
 }
diff --git a/src/components/alarm/AlarmController.h b/src/components/alarm/AlarmController.h
index f39fbded..d630a128 100644
--- a/src/components/alarm/AlarmController.h
+++ b/src/components/alarm/AlarmController.h
@@ -17,6 +17,8 @@
 */
 #pragma once
 
+#include <FreeRTOS.h>
+#include <timers.h>
 #include <cstdint>
 #include "components/datetime/DateTimeController.h"
 
@@ -57,6 +59,7 @@ namespace Pinetime {
     private:
       Controllers::DateTime& dateTimeController;
       System::SystemTask* systemTask = nullptr;
+      TimerHandle_t alarmTimer;
       uint8_t hours = 7;
       uint8_t minutes = 0;
       std::chrono::time_point<std::chrono::system_clock, std::chrono::nanoseconds> alarmTime;