Full color support, rework the directory structure

firmware/Bsp/Drivers/RtcDriver.h

@@ -0,0 +1,83 @@
+/*
+ * Copyright (C) 2019  Max Regan
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#pragma once
+
+#include <stdint.h>
+
+#include "Bsp/SystemTime.h"
+#include "Bsp/ReturnCode.h"
+#include "Bsp/Time.h"
+
+#include "stm32l0xx.h"
+
+namespace BSP {
+
+class RtcDriver final {
+public:
+
+    RtcDriver() = delete;
+    ~RtcDriver() = delete;
+
+    static SystemTimerImpl& get_system_timer() {
+        return m_sys_timer;
+    };
+    static Common::ReturnCode init();
+    static void increment_seconds();
+    static Common::ReturnCode get_time(Common::WallClockTime &tm_bcd);
+    static Common::ReturnCode set_time(const Common::WallClockTime &tm_bcd);
+    static Common::ReturnCode set_wakeup_in(Common::time_t wakeup_delay);
+
+private:
+
+    static Common::ReturnCode init_hw();
+    static void enable_rtc_write();
+    static void disable_rtc_write();
+    static void enable_rtc_wakeup_interrupt();
+    static void enable_periodic_alarm();
+
+    static constexpr uint32_t LSE_CLOCK_FREQ = 32768;
+
+    static RTC_TypeDef *m_rtc;
+
+    class RtcSystemTimer : public BSP::SystemTimerImpl {
+    public:
+
+        RtcSystemTimer()
+            : m_seconds(0)
+        {}
+
+        ~RtcSystemTimer() {}
+
+        Common::time_t get_time() override;
+        void increment_seconds();
+
+    private:
+        /** ~136 years. Good enough for me. */
+        uint32_t m_seconds;
+
+        static constexpr uint32_t LSE_CLOCK_FREQ = 32768;
+    };
+
+    static RtcSystemTimer m_sys_timer;
+};
+
+}