1 #include <linux/config.h> /* CONFIG_HEARTBEAT */
2 #include <linux/errno.h>
3 #include <linux/sched.h>
4 #include <linux/kernel.h>
5 #include <linux/param.h>
6 #include <linux/string.h>
7 #include <linux/mm.h>
8
9 #include <asm/machdep.h>
10 #include <asm/io.h>
11
12 #include <linux/timex.h>
13
m68k_get_rtc_time(void)14 unsigned long m68k_get_rtc_time(void)
15 {
16 unsigned int year, mon, day, hour, min, sec;
17
18 extern void arch_gettod(int *year, int *mon, int *day, int *hour,
19 int *min, int *sec);
20
21 arch_gettod (&year, &mon, &day, &hour, &min, &sec);
22
23 if ((year += 1900) < 1970)
24 year += 100;
25
26 return mktime(year, mon, day, hour, min, sec);
27 }
28
m68k_set_rtc_time(unsigned long nowtime)29 int m68k_set_rtc_time(unsigned long nowtime)
30 {
31 if (mach_set_clock_mmss)
32 return mach_set_clock_mmss (nowtime);
33 return -1;
34 }
35
apus_heartbeat(void)36 void apus_heartbeat (void)
37 {
38 #ifdef CONFIG_HEARTBEAT
39 static unsigned cnt = 0, period = 0, dist = 0;
40
41 if (cnt == 0 || cnt == dist)
42 mach_heartbeat( 1 );
43 else if (cnt == 7 || cnt == dist+7)
44 mach_heartbeat( 0 );
45
46 if (++cnt > period) {
47 cnt = 0;
48 /* The hyperbolic function below modifies the heartbeat period
49 * length in dependency of the current (5min) load. It goes
50 * through the points f(0)=126, f(1)=86, f(5)=51,
51 * f(inf)->30. */
52 period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30;
53 dist = period / 4;
54 }
55 #endif
56 }
57