1 files changed, 54 insertions, 0 deletions
diff --git a/include/rtc.h b/include/rtc.h
new file mode 100644
index 000000000..5ecff238f
--- /dev/null
+++ b/include/rtc.h
@@ -0,0 +1,54 @@
+#ifndef GUARD_RTC_H
+#define GUARD_RTC_H
+
+#include "gba/gba.h"
+
+#define RTC_INFO_CTRL_UNK1          0x01 // unknown
+#define RTC_INFO_CTRL_IRQ_ENABLE    0x02 // per-minute IRQ enable
+#define RTC_INFO_CTRL_UNK2          0x04 // unknown
+#define RTC_INFO_CTRL_24HOUR        0x40 // 0: 12-hour mode, 1: 24-hour mode
+#define RTC_INFO_CTRL_POWER_FAILURE 0x80 // power failure occurred
+
+enum
+{
+    MONTH_JAN = 1,
+    MONTH_FEB,
+    MONTH_MAR,
+    MONTH_APR,
+    MONTH_MAY,
+    MONTH_JUN,
+    MONTH_JUL,
+    MONTH_AUG,
+    MONTH_SEP,
+    MONTH_OCT,
+    MONTH_NOV,
+    MONTH_DEC
+};
+
+struct RtcInfo
+{
+    u8 year;
+    u8 month;
+    u8 day;
+    u8 dayOfWeek;
+    u8 hour;
+    u8 minute;
+    u8 second;
+    u8 control;
+    u8 unknown1;
+    u8 unknown2;
+};
+
+void RTC_Unprotect();
+void RTC_Protect();
+u8 RTC_Probe();
+bool8 RTC_Reset();
+bool8 RTC_GetControl(struct RtcInfo *rtc);
+bool8 RTC_SetControl(struct RtcInfo *rtc);
+bool8 RTC_GetDateTime(struct RtcInfo *rtc);
+bool8 RTC_SetDateTime(struct RtcInfo *rtc);
+bool8 RTC_GetTime(struct RtcInfo *rtc);
+bool8 RTC_SetTime(struct RtcInfo *rtc);
+bool8 RTC_SetUnknownData(struct RtcInfo *rtc);
+
+#endif // GUARD_RTC_H