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