arch/sh/boards/renesas/hs7751rvoip/led.c

   1 /*
   2  * linux/arch/sh/kernel/setup_hs7751rvoip.c
   3  *
   4  * Copyright (C) 2000  Kazumoto Kojima
   5  *
   6  * Renesas Technology Sales HS7751RVoIP Support.
   7  *
   8  * Modified for HS7751RVoIP by
   9  * Atom Create Engineering Co., Ltd. 2002.
  10  * Lineo uSolutions, Inc. 2003.
  11  */
  12
  13 #include <linux/config.h>
  14 #include <asm/io.h>
  15 #include <asm/hs7751rvoip/hs7751rvoip.h>
  16
  17 extern unsigned int debug_counter;
  18
  19 void debug_led_disp(void)
  20 {
  21         unsigned short value;
  22
  23         value = (unsigned char)debug_counter++;
  24         ctrl_outb((0xf0|value), PA_OUTPORTR);
  25         if (value == 0x0f)
  26                 debug_counter = 0;
  27 }