diff options
Diffstat (limited to 'arch/mips/kernel/time.c')
| -rw-r--r-- | arch/mips/kernel/time.c | 21 |
1 files changed, 20 insertions, 1 deletions
diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c index 1a45ce783..a35da14d2 100644 --- a/arch/mips/kernel/time.c +++ b/arch/mips/kernel/time.c @@ -1,4 +1,4 @@ -/* $Id: time.c,v 1.12 1999/06/13 16:30:34 ralf Exp $ +/* $Id: time.c,v 1.13 1999/10/09 00:00:58 ralf Exp $ * * Copyright (C) 1991, 1992, 1995 Linus Torvalds * Copyright (C) 1996, 1997, 1998 Ralf Baechle @@ -19,6 +19,7 @@ #include <asm/mipsregs.h> #include <asm/io.h> #include <asm/irq.h> +#include <asm/ddb5074.h> #include <linux/mc146818rtc.h> #include <linux/timex.h> @@ -335,6 +336,24 @@ static long last_rtc_update = 0; static void inline timer_interrupt(int irq, void *dev_id, struct pt_regs * regs) { +#ifdef CONFIG_DDB5074 + static unsigned cnt = 0, period = 0, dist = 0; + + if (cnt == 0 || cnt == dist) + ddb5074_led_d2(1); + else if (cnt == 7 || cnt == dist+7) + ddb5074_led_d2(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 #ifdef CONFIG_PROFILE if(!user_mode(regs)) { if (prof_buffer && current->pid) { |