From e21f6a7f414d1f832e8fddfeaab3b9de05aa3459 Mon Sep 17 00:00:00 2001
From: Jean-François Milants <jf@codingfield.com>
Date: Sun, 11 Jul 2021 16:55:06 +0200
Subject: Notify battery level every 10 minutes when connected to a BLE host.
 Refactor battery percent : only use uint8_t to store the battery % remaining.

---
 src/systemtask/SystemTask.cpp | 5 +++++
 src/systemtask/SystemTask.h   | 2 ++
 2 files changed, 7 insertions(+)

(limited to 'src/systemtask')

diff --git a/src/systemtask/SystemTask.cpp b/src/systemtask/SystemTask.cpp
index 17e78230..eb29638a 100644
--- a/src/systemtask/SystemTask.cpp
+++ b/src/systemtask/SystemTask.cpp
@@ -330,6 +330,11 @@ void SystemTask::Work() {
       }
     }
 
+    if (xTaskGetTickCount() - batteryNotificationTick > batteryNotificationPeriod) {
+      nimbleController.NotifyBatteryLevel(batteryController.PercentRemaining());
+      batteryNotificationTick = xTaskGetTickCount();
+    }
+
     monitor.Process();
     uint32_t systick_counter = nrf_rtc_counter_get(portNRF_RTC_REG);
     dateTimeController.UpdateTime(systick_counter);
diff --git a/src/systemtask/SystemTask.h b/src/systemtask/SystemTask.h
index bfb97264..f8cf6370 100644
--- a/src/systemtask/SystemTask.h
+++ b/src/systemtask/SystemTask.h
@@ -135,6 +135,8 @@ namespace Pinetime {
       void GoToRunning();
       void UpdateMotion();
       bool stepCounterMustBeReset = false;
+      static constexpr TickType_t batteryNotificationPeriod = 1000 * 60 * 10; // 1 tick ~= 1ms. 1ms * 60 * 10 = 10 minutes
+      TickType_t batteryNotificationTick = 0;
 
 #if configUSE_TRACE_FACILITY == 1
       SystemMonitor<FreeRtosMonitor> monitor;
-- 
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