78 lines
1.6 KiB
C
Executable file
78 lines
1.6 KiB
C
Executable file
// SPDX-License-Identifier: GPL-2.0
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/*
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* Platform dependent support for HP simulator.
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*
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* Copyright (C) 1998, 1999, 2002 Hewlett-Packard Co
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* David Mosberger-Tang <davidm@hpl.hp.com>
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* Copyright (C) 1999 Vijay Chander <vijay@engr.sgi.com>
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*/
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#include <linux/init.h>
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#include <linux/kernel.h>
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#include <linux/param.h>
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#include <linux/string.h>
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#include <linux/types.h>
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#include <linux/tty.h>
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#include <linux/kdev_t.h>
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#include <linux/console.h>
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#include <asm/delay.h>
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#include <asm/irq.h>
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#include <asm/pal.h>
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#include <asm/machvec.h>
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#include <asm/pgtable.h>
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#include <asm/sal.h>
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#include <asm/hpsim.h>
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#include "hpsim_ssc.h"
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static int simcons_init (struct console *, char *);
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static void simcons_write (struct console *, const char *, unsigned);
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static struct tty_driver *simcons_console_device (struct console *, int *);
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static struct console hpsim_cons = {
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.name = "simcons",
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.write = simcons_write,
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.device = simcons_console_device,
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.setup = simcons_init,
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.flags = CON_PRINTBUFFER,
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.index = -1,
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};
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static int
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simcons_init (struct console *cons, char *options)
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{
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return 0;
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}
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static void
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simcons_write (struct console *cons, const char *buf, unsigned count)
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{
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unsigned long ch;
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while (count-- > 0) {
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ch = *buf++;
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ia64_ssc(ch, 0, 0, 0, SSC_PUTCHAR);
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if (ch == '\n')
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ia64_ssc('\r', 0, 0, 0, SSC_PUTCHAR);
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}
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}
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static struct tty_driver *simcons_console_device (struct console *c, int *index)
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{
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*index = c->index;
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return hp_simserial_driver;
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}
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int simcons_register(void)
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{
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if (!ia64_platform_is("hpsim"))
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return 1;
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if (hpsim_cons.flags & CON_ENABLED)
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return 1;
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register_console(&hpsim_cons);
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return 0;
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}
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