/* * linux/arch/sh/kernel/led_rts7751r2d.c * * Copyright (C) Atom Create Engineering Co., Ltd. * * May be copied or modified under the terms of GNU General Public * License.  See linux/COPYING for more information. * * This file contains Renesas Technology Sales RTS7751R2D specific LED code. */#include <linux/config.h>#include <asm/io.h>#include <asm/rts7751r2d/rts7751r2d.h>extern unsigned int debug_counter;#ifdef CONFIG_HEARTBEAT#include <linux/sched.h>/* Cycle the LED's in the clasic Knightriger/Sun pattern */void heartbeat_rts7751r2d(void){	static unsigned int cnt = 0, period = 0;	volatile unsigned short *p = (volatile unsigned short *)PA_OUTPORT;	static unsigned bit = 0, up = 1;	cnt += 1;	if (cnt < period)		return;	cnt = 0;	/* Go through the points (roughly!):	 * f(0)=10, f(1)=16, f(2)=20, f(5)=35, f(int)->110	 */	period = 110 - ((300 << FSHIFT)/((avenrun[0]/5) + (3<<FSHIFT)));	*p = 1 << bit;	if (up)		if (bit == 7) {			bit--;			up = 0;		} else			bit++;	else if (bit == 0)		up = 1;	else		bit--;}#endif /* CONFIG_HEARTBEAT */void rts7751r2d_led(unsigned short value){	ctrl_outw(value, PA_OUTPORT);}void debug_led_disp(void){	unsigned short value;	value = (unsigned short)debug_counter++;	rts7751r2d_led(value);	if (value == 0xff)		debug_counter = 0;}