Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | #include <linux/errno.h> |
| 2 | #include <linux/sched.h> |
| 3 | #include <linux/kernel.h> |
| 4 | #include <linux/param.h> |
| 5 | #include <linux/string.h> |
| 6 | #include <linux/mm.h> |
| 7 | |
| 8 | #include <asm/machdep.h> |
| 9 | #include <asm/io.h> |
| 10 | |
| 11 | #include <linux/timex.h> |
| 12 | |
| 13 | unsigned long m68k_get_rtc_time(void) |
| 14 | { |
| 15 | unsigned int year, mon, day, hour, min, sec; |
| 16 | |
| 17 | extern void arch_gettod(int *year, int *mon, int *day, int *hour, |
| 18 | int *min, int *sec); |
| 19 | |
| 20 | arch_gettod (&year, &mon, &day, &hour, &min, &sec); |
| 21 | |
| 22 | if ((year += 1900) < 1970) |
| 23 | year += 100; |
| 24 | |
| 25 | return mktime(year, mon, day, hour, min, sec); |
| 26 | } |
| 27 | |
| 28 | int m68k_set_rtc_time(unsigned long nowtime) |
| 29 | { |
| 30 | if (mach_set_clock_mmss) |
| 31 | return mach_set_clock_mmss (nowtime); |
| 32 | return -1; |
| 33 | } |
| 34 | |
| 35 | void apus_heartbeat (void) |
| 36 | { |
| 37 | #ifdef CONFIG_HEARTBEAT |
| 38 | static unsigned cnt = 0, period = 0, dist = 0; |
| 39 | |
| 40 | if (cnt == 0 || cnt == dist) |
| 41 | mach_heartbeat( 1 ); |
| 42 | else if (cnt == 7 || cnt == dist+7) |
| 43 | mach_heartbeat( 0 ); |
| 44 | |
| 45 | if (++cnt > period) { |
| 46 | cnt = 0; |
| 47 | /* The hyperbolic function below modifies the heartbeat period |
| 48 | * length in dependency of the current (5min) load. It goes |
| 49 | * through the points f(0)=126, f(1)=86, f(5)=51, |
| 50 | * f(inf)->30. */ |
| 51 | period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30; |
| 52 | dist = period / 4; |
| 53 | } |
| 54 | #endif |
| 55 | /* should be made smarter */ |
| 56 | ppc_md.heartbeat_count = 1; |
| 57 | } |