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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/ppc/amiga/time.c
downloadlinux-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
linux-dev-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip
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.c58
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;
+}