acrn-kernel/arch/mips/emma/markeins/led.c

45 lines
828 B
C

// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Copyright (C) NEC Electronics Corporation 2004-2006
*/
#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/string.h>
#include <asm/emma/emma2rh.h>
const unsigned long clear = 0x20202020;
#define LED_BASE 0xb1400038
void markeins_led_clear(void)
{
emma2rh_out32(LED_BASE, clear);
emma2rh_out32(LED_BASE + 4, clear);
}
void markeins_led(const char *str)
{
int i;
int len = strlen(str);
markeins_led_clear();
if (len > 8)
len = 8;
if (emma2rh_in32(0xb0000800) & (0x1 << 18))
for (i = 0; i < len; i++)
emma2rh_out8(LED_BASE + i, str[i]);
else
for (i = 0; i < len; i++)
emma2rh_out8(LED_BASE + (i & 4) + (3 - (i & 3)),
str[i]);
}
void markeins_led_hex(u32 val)
{
char str[10];
sprintf(str, "%08x", val);
markeins_led(str);
}