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authorleo <leo@NetBSD.org>1996-01-06 20:10:41 +0000
committerleo <leo@NetBSD.org>1996-01-06 20:10:41 +0000
commit356a61ab951b8d5157fa38e0632e272a7ec0fd01 (patch)
treef6c0a1de05010c172f2515de5c432a8e1675d1c1 /sys/arch/atari/dev/clock.c
parent0c5975cdd38e4e3eed9db0d3257a20efef12c5a0 (diff)
Add an nvram-driver. This driver makes it possible to read/write the
configuration info stored in the nvram on the mc146818.
Diffstat (limited to 'sys/arch/atari/dev/clock.c')
-rw-r--r--sys/arch/atari/dev/clock.c22
1 files changed, 21 insertions, 1 deletions
diff --git a/sys/arch/atari/dev/clock.c b/sys/arch/atari/dev/clock.c
index aee79a46bfd..5baf74c1dd3 100644
--- a/sys/arch/atari/dev/clock.c
+++ b/sys/arch/atari/dev/clock.c
@@ -1,4 +1,4 @@
-/* $NetBSD: clock.c,v 1.6 1995/12/01 19:51:53 leo Exp $ */
+/* $NetBSD: clock.c,v 1.7 1996/01/06 20:11:06 leo Exp $ */
/*
* Copyright (c) 1988 University of Utah.
@@ -314,6 +314,26 @@ profclock(pc, ps)
}
#endif
+/***********************************************************************
+ * Real Time Clock support *
+ ***********************************************************************/
+
+u_int mc146818_read(rtc, regno)
+void *rtc;
+u_int regno;
+{
+ ((struct rtc *)rtc)->rtc_regno = regno;
+ return(((struct rtc *)rtc)->rtc_data & 0377);
+}
+
+void mc146818_write(rtc, regno, value)
+void *rtc;
+u_int regno, value;
+{
+ ((struct rtc *)rtc)->rtc_regno = regno;
+ ((struct rtc *)rtc)->rtc_data = value;
+}
+
/*
* Initialize the time of day register, based on the time base which is, e.g.
* from a filesystem.