[deliverable/linux.git] / arch / um / kernel / early_printk.c

/*
 * Copyright (C) 2011 Richard Weinberger <richrd@nod.at>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#include <linux/console.h>
#include <linux/init.h>
#include <os.h>

static void early_console_write(struct console *con, const char *s, unsigned int n)
{
	um_early_printk(s, n);
}

static struct console early_console_dev = {
	.name = "earlycon",
	.write = early_console_write,
	.flags = CON_BOOT,
	.index = -1,
};

static int __init setup_early_printk(char *buf)
{
	if (!early_console) {
		early_console = &early_console_dev;
		register_console(&early_console_dev);
	}
	return 0;
}

early_param("earlyprintk", setup_early_printk);
Commit	Line	Data
d634f194 RW	1	/*
	2	* Copyright (C) 2011 Richard Weinberger <richrd@nod.at>
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License version 2 as
	6	* published by the Free Software Foundation.
	7	*/
	8
	9	#include <linux/kernel.h>
	10	#include <linux/console.h>
	11	#include <linux/init.h>
37185b33	12	#include <os.h>
d634f194 RW	13
	14	static void early_console_write(struct console con, const char s, unsigned int n)
	15	{
	16	um_early_printk(s, n);
	17	}
	18
d0380e6c	19	static struct console early_console_dev = {
d634f194 RW	20	.name = "earlycon",
	21	.write = early_console_write,
	22	.flags = CON_BOOT,
	23	.index = -1,
	24	};
	25
	26	static int __init setup_early_printk(char *buf)
	27	{
d0380e6c TG	28	if (!early_console) {
	29	early_console = &early_console_dev;
	30	register_console(&early_console_dev);
	31	}
d634f194 RW	32	return 0;
	33	}
	34
	35	early_param("earlyprintk", setup_early_printk);