diff options
author | Linus Torvalds | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/ppc/amiga/time.c |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'arch/ppc/amiga/time.c')
-rw-r--r-- | arch/ppc/amiga/time.c | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/ppc/amiga/time.c b/arch/ppc/amiga/time.c new file mode 100644 index 000000000000..0073527a7036 --- /dev/null +++ b/arch/ppc/amiga/time.c @@ -0,0 +1,58 @@ +#include <linux/config.h> /* CONFIG_HEARTBEAT */ +#include <linux/errno.h> +#include <linux/sched.h> +#include <linux/kernel.h> +#include <linux/param.h> +#include <linux/string.h> +#include <linux/mm.h> + +#include <asm/machdep.h> +#include <asm/io.h> + +#include <linux/timex.h> + +unsigned long m68k_get_rtc_time(void) +{ + unsigned int year, mon, day, hour, min, sec; + + extern void arch_gettod(int *year, int *mon, int *day, int *hour, + int *min, int *sec); + + arch_gettod (&year, &mon, &day, &hour, &min, &sec); + + if ((year += 1900) < 1970) + year += 100; + + return mktime(year, mon, day, hour, min, sec); +} + +int m68k_set_rtc_time(unsigned long nowtime) +{ + if (mach_set_clock_mmss) + return mach_set_clock_mmss (nowtime); + return -1; +} + +void apus_heartbeat (void) +{ +#ifdef CONFIG_HEARTBEAT + static unsigned cnt = 0, period = 0, dist = 0; + + if (cnt == 0 || cnt == dist) + mach_heartbeat( 1 ); + else if (cnt == 7 || cnt == dist+7) + mach_heartbeat( 0 ); + + if (++cnt > period) { + cnt = 0; + /* The hyperbolic function below modifies the heartbeat period + * length in dependency of the current (5min) load. It goes + * through the points f(0)=126, f(1)=86, f(5)=51, + * f(inf)->30. */ + period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30; + dist = period / 4; + } +#endif + /* should be made smarter */ + ppc_md.heartbeat_count = 1; +} |