patch-2.4.0-test9 linux/arch/alpha/kernel/time.c
Next file: linux/arch/alpha/math-emu/Makefile
Previous file: linux/arch/alpha/kernel/smp.c
Back to the patch index
Back to the overall index
- Lines: 78
- Date:
Fri Sep 22 14:09:00 2000
- Orig file:
v2.4.0-test8/linux/arch/alpha/kernel/time.c
- Orig date:
Mon Aug 21 07:52:34 2000
diff -u --recursive --new-file v2.4.0-test8/linux/arch/alpha/kernel/time.c linux/arch/alpha/kernel/time.c
@@ -36,6 +36,7 @@
#include <linux/ioport.h>
#include <linux/irq.h>
#include <linux/interrupt.h>
+#include <linux/init.h>
#include <asm/uaccess.h>
#include <asm/io.h>
@@ -135,38 +136,6 @@
write_unlock(&xtime_lock);
}
-/*
- * Converts Gregorian date to seconds since 1970-01-01 00:00:00.
- * Assumes input in normal date format, i.e. 1980-12-31 23:59:59
- * => year=1980, mon=12, day=31, hour=23, min=59, sec=59.
- *
- * [For the Julian calendar (which was used in Russia before 1917,
- * Britain & colonies before 1752, anywhere else before 1582,
- * and is still in use by some communities) leave out the
- * -year/100+year/400 terms, and add 10.]
- *
- * This algorithm was first published by Gauss (I think).
- *
- * WARNING: this function will overflow on 2106-02-07 06:28:16 on
- * machines were long is 32-bit! (However, as time_t is signed, we
- * will already get problems at other places on 2038-01-19 03:14:08)
- */
-static inline unsigned long mktime(unsigned int year, unsigned int mon,
- unsigned int day, unsigned int hour,
- unsigned int min, unsigned int sec)
-{
- if (0 >= (int) (mon -= 2)) { /* 1..12 -> 11,12,1..10 */
- mon += 12; /* Puts Feb last since it has leap day */
- year -= 1;
- }
- return (((
- (unsigned long)(year/4 - year/100 + year/400 + 367*mon/12 + day) +
- year*365 - 719499
- )*24 + hour /* now have hours */
- )*60 + min /* now have minutes */
- )*60 + sec; /* finally seconds */
-}
-
void
common_init_rtc(void)
{
@@ -200,7 +169,7 @@
init_rtc_irq();
}
-void
+void __init
time_init(void)
{
unsigned int year, mon, day, hour, min, sec, cc1, cc2, epoch;
@@ -267,17 +236,14 @@
BCD_TO_BIN(year);
}
- /* PC-like is standard; used for year <= 20 || year >= 100 */
+ /* PC-like is standard; used for year < 20 || year >= 70 */
epoch = 1900;
- if (year > 20 && year < 48)
- /* ARC console, used on some not so old boards */
+ if (year >= 20 && year < 48)
+ /* NT epoch */
epoch = 1980;
else if (year >= 48 && year < 70)
- /* Digital UNIX, used on older boards (eg. AXPpxi33) */
+ /* Digital UNIX epoch */
epoch = 1952;
- else if (year >= 70 && year < 100)
- /* Digital DECstations, very old... */
- epoch = 1928;
printk(KERN_INFO "Using epoch = %d\n", epoch);
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)