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/*
* arch/mips/dec/prom/console.c
*
* DECstation PROM-based early console support.
*
* Copyright (C) 2004 Maciej W. Rozycki
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*/
#include <linux/console.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <asm/dec/prom.h>
static void __init prom_console_write(struct console *con, const char *s,
unsigned int c)
{
static char sfmt[] __initdata = "%%%us";
char fmt[13];
snprintf(fmt, sizeof(fmt), sfmt, c);
prom_printf(fmt, s);
}
static struct console promcons __initdata = {
.name = "prom",
.write = prom_console_write,
.flags = CON_PRINTBUFFER,
.index = -1,
};
static int promcons_output __initdata = 0;
void __init register_prom_console(void)
{
if (!promcons_output) {
promcons_output = 1;
register_console(&promcons);
}
}
void __init unregister_prom_console(void)
{
if (promcons_output) {
unregister_console(&promcons);
promcons_output = 0;
}
}
void disable_early_printk(void)
__attribute__((alias("unregister_prom_console")));
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