patch-2.4.19 linux-2.4.19/include/asm-mips/jmr3927/ds1742rtc.h

• Lines: 69
• Date: Fri Aug 2 17:39:45 2002
• Orig file: linux-2.4.18/include/asm-mips/jmr3927/ds1742rtc.h
• Orig date: Wed Dec 31 16:00:00 1969

diff -urN linux-2.4.18/include/asm-mips/jmr3927/ds1742rtc.h linux-2.4.19/include/asm-mips/jmr3927/ds1742rtc.h
@@ -0,0 +1,68 @@
+/* $Id: ds1742rtc.h,v 1.1 2002/02/27 18:57:58 marcelo Exp $
+ *
+ * ds1742rtc.h - register definitions for the Real-Time-Clock / CMOS RAM
+ *
+ *   Based on include/asm-mips/ds1643rtc.h.
+ *
+ * Copyright (C) 1999-2001 Toshiba Corporation
+ * It was written to be part of the Linux operating system.
+ */
+/* permission is hereby granted to copy, modify and redistribute this code
+ * in terms of the GNU Library General Public License, Version 2 or later,
+ * at your option.
+ */
+#ifndef _DS1742RTC_H
+#define _DS1742RTC_H
+
+#include <linux/rtc.h>
+#include <asm/mc146818rtc.h>	/* bad name... */
+
+#define RTC_BRAM_SIZE		0x800
+#define RTC_OFFSET		0x7f8
+
+/**********************************************************************
+ * register summary
+ **********************************************************************/
+#define RTC_CONTROL		(RTC_OFFSET + 0)
+#define RTC_CENTURY		(RTC_OFFSET + 0)
+#define RTC_SECONDS		(RTC_OFFSET + 1)
+#define RTC_MINUTES		(RTC_OFFSET + 2)
+#define RTC_HOURS		(RTC_OFFSET + 3)
+#define RTC_DAY			(RTC_OFFSET + 4)
+#define RTC_DATE		(RTC_OFFSET + 5)
+#define RTC_MONTH		(RTC_OFFSET + 6)
+#define RTC_YEAR		(RTC_OFFSET + 7)
+
+#define RTC_CENTURY_MASK	0x3f
+#define RTC_SECONDS_MASK	0x7f
+#define RTC_DAY_MASK		0x07
+
+/*
+ * Bits in the Control/Century register
+ */
+#define RTC_WRITE		0x80
+#define RTC_READ		0x40
+
+/*
+ * Bits in the Seconds register
+ */
+#define RTC_STOP		0x80
+
+/*
+ * Bits in the Day register
+ */
+#define RTC_BATT_FLAG		0x80
+#define RTC_FREQ_TEST		0x40
+
+/*
+ * Conversion between binary and BCD.
+ */
+#ifndef BCD_TO_BIN
+#define BCD_TO_BIN(val) ((val)=((val)&15) + ((val)>>4)*10)
+#endif
+
+#ifndef BIN_TO_BCD
+#define BIN_TO_BCD(val) ((val)=(((val)/10)<<4) + (val)%10)
+#endif
+
+#endif /* _DS1742RTC_H */