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43 lines
830 B
43 lines
830 B
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* OF console routines |
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* |
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* Copyright (C) Paul Mackerras 1997. |
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*/ |
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#include <stddef.h> |
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#include "types.h" |
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#include "elf.h" |
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#include "string.h" |
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#include "stdio.h" |
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#include "page.h" |
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#include "ops.h" |
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#include "of.h" |
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static unsigned int of_stdout_handle; |
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static int of_console_open(void) |
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{ |
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void *devp; |
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if (((devp = of_finddevice("/chosen")) != NULL) |
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&& (of_getprop(devp, "stdout", &of_stdout_handle, |
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sizeof(of_stdout_handle)) |
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== sizeof(of_stdout_handle))) { |
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of_stdout_handle = be32_to_cpu(of_stdout_handle); |
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return 0; |
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} |
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return -1; |
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} |
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static void of_console_write(const char *buf, int len) |
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{ |
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of_call_prom("write", 3, 1, of_stdout_handle, buf, len); |
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} |
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void of_console_init(void) |
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{ |
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console_ops.open = of_console_open; |
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console_ops.write = of_console_write; |
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}
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