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/se/se.h>
15 static void mach_led(int position, int value)
17 volatile unsigned short* p = (volatile unsigned short*)PA_LED;
26 #ifdef CONFIG_HEARTBEAT
28 #include <linux/sched.h>
30 /* Cycle the LED's in the clasic Knightrider/Sun pattern */
31 void heartbeat_se(void)
33 static unsigned int cnt = 0, period = 0;
34 volatile unsigned short* p = (volatile unsigned short*)PA_LED;
35 static unsigned bit = 0, up = 1;
44 /* Go through the points (roughly!):
45 * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110
47 period = 110 - ( (300<<FSHIFT)/
48 ((avenrun[0]/5) + (3<<FSHIFT)) );
68 #endif /* CONFIG_HEARTBEAT */