2 * linux/arch/sh/kernel/led_se.c
4 * Copyright (C) 2000 Stuart Menefy <stuart.menefy@st.com>
6 * May be copied or modified under the terms of the GNU General Public
7 * License. See linux/COPYING for more information.
9 * This file contains Solution Engine specific LED code.
12 #include <linux/config.h>
13 #include <asm/se7206.h>
15 #ifdef CONFIG_HEARTBEAT
17 #include <linux/sched.h>
19 /* Cycle the LED's in the clasic Knightrider/Sun pattern */
20 void heartbeat_se(void)
22 static unsigned int cnt = 0, period = 0;
23 volatile unsigned short* p = (volatile unsigned short*)PA_LED;
24 static unsigned bit = 0, up = 1;
33 /* Go through the points (roughly!):
34 * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110
36 period = 110 - ( (300<<FSHIFT)/
37 ((avenrun[0]/5) + (3<<FSHIFT)) );
57 #endif /* CONFIG_HEARTBEAT */