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 <asm/se7751/se7751.h>
14 static void mach_led(int position, int value)
16 volatile unsigned short* p = (volatile unsigned short*)PA_LED;
25 #ifdef CONFIG_HEARTBEAT
27 #include <linux/sched.h>
29 /* Cycle the LED's in the clasic Knightrider/Sun pattern */
30 void heartbeat_7751se(void)
32 static unsigned int cnt = 0, period = 0;
33 volatile unsigned short* p = (volatile unsigned short*)PA_LED;
34 static unsigned bit = 0, up = 1;
43 /* Go through the points (roughly!):
44 * f(0)=10, f(1)=16, f(2)=20, f(5)=35,f(inf)->110
46 period = 110 - ( (300<<FSHIFT)/
47 ((avenrun[0]/5) + (3<<FSHIFT)) );
67 #endif /* CONFIG_HEARTBEAT */