42 lines
815 B
C
42 lines
815 B
C
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// 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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