2 * Copyright (C) Atom Create Engineering Co., Ltd.
4 * May be copied or modified under the terms of GNU General Public
5 * License. See linux/COPYING for more information.
7 * This file contains Renesas Solutions HIGHLANDER R7780RP-1 specific LED code.
9 #include <linux/sched.h>
11 #include <asm/r7780rp/r7780rp.h>
13 /* Cycle the LED's in the clasic Knightriger/Sun pattern */
14 void heartbeat_r7780rp(void)
16 static unsigned int cnt
= 0, period
= 0;
17 volatile unsigned short *p
= (volatile unsigned short *)PA_OBLED
;
18 static unsigned bit
= 0, up
= 1;
19 unsigned bit_pos
[] = {2, 1, 0, 3, 6, 5, 4, 7};
27 /* Go through the points (roughly!):
28 * f(0)=10, f(1)=16, f(2)=20, f(5)=35, f(int)->110
30 period
= 110 - ((300 << FSHIFT
)/((avenrun
[0]/5) + (3<<FSHIFT
)));
32 *p
= 1 << bit_pos
[bit
];