console.c
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/*
* DECstation PROM-based early console support.
*
* Copyright (C) 2004, 2007 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 <linux/string.h>
#include <asm/dec/prom.h>
static void __init prom_console_write(struct console *con, const char *s,
unsigned int c)
{
char buf[81];
unsigned int chunk = sizeof(buf) - 1;
while (c > 0) {
if (chunk > c)
chunk = c;
memcpy(buf, s, chunk);
buf[chunk] = '\0';
prom_printf("%s", buf);
s += chunk;
c -= chunk;
}
}
static struct console promcons __initdata = {
.name = "prom",
.write = prom_console_write,
.flags = CON_BOOT | CON_PRINTBUFFER,
.index = -1,
};
void __init register_prom_console(void)
{
register_console(&promcons);
}