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41 lines
815 B
41 lines
815 B
// SPDX-License-Identifier: GPL-2.0-or-later |
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/* |
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* DECstation PROM-based early console support. |
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* |
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* Copyright (C) 2004, 2007 Maciej W. Rozycki |
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*/ |
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#include <linux/console.h> |
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#include <linux/init.h> |
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#include <linux/kernel.h> |
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#include <linux/string.h> |
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#include <asm/dec/prom.h> |
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static void __init prom_console_write(struct console *con, const char *s, |
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unsigned int c) |
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{ |
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char buf[81]; |
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unsigned int chunk = sizeof(buf) - 1; |
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while (c > 0) { |
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if (chunk > c) |
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chunk = c; |
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memcpy(buf, s, chunk); |
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buf[chunk] = '\0'; |
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prom_printf("%s", buf); |
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s += chunk; |
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c -= chunk; |
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} |
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} |
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static struct console promcons __initdata = { |
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.name = "prom", |
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.write = prom_console_write, |
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.flags = CON_BOOT | CON_PRINTBUFFER, |
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.index = -1, |
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}; |
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void __init register_prom_console(void) |
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{ |
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register_console(&promcons); |
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}
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