Handout

kernel/arch/cmos.h

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+/*! \file
+ *  \brief Controlling the \ref CMOS "complementary metal oxide semiconductor
+ * (CMOS)"
+ */
+
+#pragma once
+#include "../types.h"
+
+/*!
+ * \defgroup CMOS CMOS
+ * \brief complementary metal oxide semiconductor (CMOS)
+ */
+
+/*! \brief CMOS
+ * \ingroup CMOS
+ */
+namespace CMOS {
+
+enum class Register {
+	SECOND = 0x0,		 ///< RTC
+	ALARM_SECOND = 0x1,	 ///< RTC
+	MINUTE = 0x2,		 ///< RTC
+	ALARM_MINUTE = 0x3,	 ///< RTC
+	HOUR = 0x4,			 ///< RTC
+	ALARM_HOUR = 0x5,	 ///< RTC
+	WEEKDAY = 0x6,		 ///< RTC
+	DAYOFMONTH = 0x7,	 ///< RTC
+	MONTH = 0x8,		 ///< RTC
+	YEAR = 0x9,			 ///< RTC
+	STATUS_A = 0xa,		 ///< RTC
+	STATUS_B = 0xb,		 ///< RTC
+	STATUS_C = 0xc,		 ///< RTC
+	STATUS_D = 0xd,		 ///< RTC
+	STATUS_DIAGNOSE = 0xe,
+	STATUS_SHUTDOWN = 0xf
+};
+
+uint8_t read(enum Register reg);
+void write(enum Register reg, uint8_t value);
+
+namespace NMI {
+void enable();
+void disable();
+bool isEnabled();
+}  // namespace NMI
+}  // namespace CMOS