LXR linux/arch/mips/emma/markeins/led.c

   1// SPDX-License-Identifier: GPL-2.0-or-later
   2/*
   3 *  Copyright (C) NEC Electronics Corporation 2004-2006
   4 */
   5#include <linux/kernel.h>
   6#include <linux/types.h>
   7#include <linux/string.h>
   8#include <asm/emma/emma2rh.h>
   9
  10const unsigned long clear = 0x20202020;
  11
  12#define LED_BASE 0xb1400038
  13
  14void markeins_led_clear(void)
  15{
  16        emma2rh_out32(LED_BASE, clear);
  17        emma2rh_out32(LED_BASE + 4, clear);
  18}
  19
  20void markeins_led(const char *str)
  21{
  22        int i;
  23        int len = strlen(str);
  24
  25        markeins_led_clear();
  26        if (len > 8)
  27                len = 8;
  28
  29        if (emma2rh_in32(0xb0000800) & (0x1 << 18))
  30                for (i = 0; i < len; i++)
  31                        emma2rh_out8(LED_BASE + i, str[i]);
  32        else
  33                for (i = 0; i < len; i++)
  34                        emma2rh_out8(LED_BASE + (i & 4) + (3 - (i & 3)),
  35                                     str[i]);
  36}
  37
  38void markeins_led_hex(u32 val)
  39{
  40        char str[10];
  41
  42        sprintf(str, "%08x", val);
  43        markeins_led(str);
  44}
  45