/*
   * OF console routines
   *
   * Copyright (C) Paul Mackerras 1997.
   *
   * 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 <stddef.h>
  #include "types.h"
  #include "elf.h"
  #include "string.h"
  #include "stdio.h"
  #include "page.h"
  #include "ops.h"
  
  #include "of.h"
  
  static unsigned int of_stdout_handle;
  
  static int of_console_open(void)
  {
  	void *devp;
  
  	if (((devp = of_finddevice("/chosen")) != NULL)
  	    && (of_getprop(devp, "stdout", &of_stdout_handle,
  			   sizeof(of_stdout_handle))
  		== sizeof(of_stdout_handle))) {
  		of_stdout_handle = be32_to_cpu(of_stdout_handle);
  		return 0;
  	}
  
  	return -1;
  }
  
  static void of_console_write(const char *buf, int len)
  {
  	of_call_prom("write", 3, 1, of_stdout_handle, buf, len);
  }
  
  void of_console_init(void)
  {
  	console_ops.open = of_console_open;
  	console_ops.write = of_console_write;
  }