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Commit | Line | Data |
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2e601613 DG |
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 | ||
926e6940 | 21 | static unsigned int of_stdout_handle; |
2e601613 DG |
22 | |
23 | static int of_console_open(void) | |
24 | { | |
25 | void *devp; | |
26 | ||
08464712 DG |
27 | if (((devp = of_finddevice("/chosen")) != NULL) |
28 | && (of_getprop(devp, "stdout", &of_stdout_handle, | |
29 | sizeof(of_stdout_handle)) | |
926e6940 CLG |
30 | == sizeof(of_stdout_handle))) { |
31 | of_stdout_handle = be32_to_cpu(of_stdout_handle); | |
2e601613 | 32 | return 0; |
926e6940 | 33 | } |
2e601613 DG |
34 | |
35 | return -1; | |
36 | } | |
37 | ||
b96fbb6e | 38 | static void of_console_write(const char *buf, int len) |
2e601613 DG |
39 | { |
40 | of_call_prom("write", 3, 1, of_stdout_handle, buf, len); | |
41 | } | |
42 | ||
43 | void of_console_init(void) | |
44 | { | |
45 | console_ops.open = of_console_open; | |
46 | console_ops.write = of_console_write; | |
47 | } |