2 * linux/arch/sh/boards/sh03/led.c
4 * Copyright (C) 2004 Saito.K Interface Corporation.
6 * This file contains Interface CTP/PCI-SH03 specific LED code.
9 #include <linux/config.h>
10 #include <linux/sched.h>
12 /* Cycle the LED's in the clasic Knightrider/Sun pattern */
13 void heartbeat_sh03(void)
15 static unsigned int cnt = 0, period = 0;
16 volatile unsigned char* p = (volatile unsigned char*)0xa0800000;
17 static unsigned bit = 0, up = 1;
26 /* Go through the points (roughly!):
27 * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110
29 period = 110 - ( (300<<FSHIFT)/
30 ((avenrun[0]/5) + (3<<FSHIFT)) );