1// SPDX-License-Identifier: GPL-2.0-or-later
 2/*
 3 * OF console routines
 4 *
 5 * Copyright (C) Paul Mackerras 1997.
 
 
 
 
 
 6 */
 7#include <stddef.h>
 8#include "types.h"
 9#include "elf.h"
10#include "string.h"
11#include "stdio.h"
12#include "page.h"
13#include "ops.h"
14
15#include "of.h"
16
17static unsigned int of_stdout_handle;
18
19static int of_console_open(void)
20{
21	void *devp;
22
23	if (((devp = of_finddevice("/chosen")) != NULL)
24	    && (of_getprop(devp, "stdout", &of_stdout_handle,
25			   sizeof(of_stdout_handle))
26		== sizeof(of_stdout_handle))) {
27		of_stdout_handle = be32_to_cpu(of_stdout_handle);
28		return 0;
29	}
30
31	return -1;
32}
33
34static void of_console_write(const char *buf, int len)
35{
36	of_call_prom("write", 3, 1, of_stdout_handle, buf, len);
37}
38
39void of_console_init(void)
40{
41	console_ops.open = of_console_open;
42	console_ops.write = of_console_write;
43}

 
 1/*
 2 * OF console routines
 3 *
 4 * Copyright (C) Paul Mackerras 1997.
 5 *
 6 * This program is free software; you can redistribute it and/or
 7 * modify it under the terms of the GNU General Public License
 8 * as published by the Free Software Foundation; either version
 9 * 2 of the License, or (at your option) any later version.
10 */
11#include <stddef.h>
12#include "types.h"
13#include "elf.h"
14#include "string.h"
15#include "stdio.h"
16#include "page.h"
17#include "ops.h"
18
19#include "of.h"
20
21static void *of_stdout_handle;
22
23static int of_console_open(void)
24{
25	void *devp;
26
27	if (((devp = of_finddevice("/chosen")) != NULL)
28	    && (of_getprop(devp, "stdout", &of_stdout_handle,
29			   sizeof(of_stdout_handle))
30		== sizeof(of_stdout_handle)))
 
31		return 0;
 
32
33	return -1;
34}
35
36static void of_console_write(const char *buf, int len)
37{
38	of_call_prom("write", 3, 1, of_stdout_handle, buf, len);
39}
40
41void of_console_init(void)
42{
43	console_ops.open = of_console_open;
44	console_ops.write = of_console_write;
45}