/*
   *	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);
  }