2 files changed, 20 insertions, 0 deletions
diff --git a/src/components/motor/MotorController.cpp b/src/components/motor/MotorController.cpp
index d3bd2cf3..3984a7b2 100644
--- a/src/components/motor/MotorController.cpp
+++ b/src/components/motor/MotorController.cpp
@@ -11,6 +11,7 @@ void MotorController::Init() {
 
   shortVib = xTimerCreate("shortVib", 1, pdFALSE, nullptr, StopMotor);
   longVib = xTimerCreate("longVib", pdMS_TO_TICKS(1000), pdTRUE, this, Ring);
+  pulse = xTimerCreate("pulse", 1, pdTRUE, this, RingWithLatch);
 }
 
 void MotorController::Ring(TimerHandle_t xTimer) {
@@ -18,12 +19,27 @@ void MotorController::Ring(TimerHandle_t xTimer) {
   motorController->RunForDuration(50);
 }
 
+void MotorController::RingWithLatch(TimerHandle_t xTimer) {
+  auto* motorController = static_cast<MotorController*>(pvTimerGetTimerID(xTimer));
+  if (--(motorController->pulseLatch) == 0) {
+    xTimerStop(motorController->pulse, 0);
+  }
+  motorController->RunForDuration(50);
+}
+
 void MotorController::RunForDuration(uint8_t motorDuration) {
   if (motorDuration > 0 && xTimerChangePeriod(shortVib, pdMS_TO_TICKS(motorDuration), 0) == pdPASS && xTimerStart(shortVib, 0) == pdPASS) {
     nrf_gpio_pin_clear(PinMap::Motor);
   }
 }
 
+void MotorController::Pulse(uint32_t interval, uint8_t repetitions) {
+  pulseLatch = repetitions;
+  if (xTimerChangePeriod(pulse, pdMS_TO_TICKS(interval), 0) == pdPASS) {
+    xTimerStart(pulse, 0);
+  }
+}
+
 void MotorController::StartRinging() {
   RunForDuration(50);
   xTimerStart(longVib, 0);
diff --git a/src/components/motor/MotorController.h b/src/components/motor/MotorController.h
index ab8c956e..04b08b08 100644
--- a/src/components/motor/MotorController.h
+++ b/src/components/motor/MotorController.h
@@ -13,15 +13,19 @@ namespace Pinetime {
 
       void Init();
       void RunForDuration(uint8_t motorDuration);
+      void Pulse(uint32_t interval, uint8_t repetitions);
       void StartRinging();
       void StopRinging();
       bool IsRinging();
 
     private:
       static void Ring(TimerHandle_t xTimer);
+      static void RingWithLatch(TimerHandle_t xTimer);
       static void StopMotor(TimerHandle_t xTimer);
       TimerHandle_t shortVib;
       TimerHandle_t longVib;
+      TimerHandle_t pulse;
+      uint8_t pulseLatch;
     };
   }
 }