1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
// SPDX-License-Identifier: GPL-2.0
/*
* Platform dependent support for HP simulator.
*
* Copyright (C) 1998, 1999, 2002 Hewlett-Packard Co
* David Mosberger-Tang <davidm@hpl.hp.com>
* Copyright (C) 1999 Vijay Chander <vijay@engr.sgi.com>
*/
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/string.h>
#include <linux/types.h>
#include <linux/tty.h>
#include <linux/kdev_t.h>
#include <linux/console.h>
#include <asm/delay.h>
#include <asm/irq.h>
#include <asm/pal.h>
#include <asm/machvec.h>
#include <asm/pgtable.h>
#include <asm/sal.h>
#include <asm/hpsim.h>
#include "hpsim_ssc.h"
static int simcons_init (struct console *, char *);
static void simcons_write (struct console *, const char *, unsigned);
static struct tty_driver *simcons_console_device (struct console *, int *);
static struct console hpsim_cons = {
.name = "simcons",
.write = simcons_write,
.device = simcons_console_device,
.setup = simcons_init,
.flags = CON_PRINTBUFFER,
.index = -1,
};
static int
simcons_init (struct console *cons, char *options)
{
return 0;
}
static void
simcons_write (struct console *cons, const char *buf, unsigned count)
{
unsigned long ch;
while (count-- > 0) {
ch = *buf++;
ia64_ssc(ch, 0, 0, 0, SSC_PUTCHAR);
if (ch == '\n')
ia64_ssc('\r', 0, 0, 0, SSC_PUTCHAR);
}
}
static struct tty_driver *simcons_console_device (struct console *c, int *index)
{
*index = c->index;
return hp_simserial_driver;
}
int simcons_register(void)
{
if (!ia64_platform_is("hpsim"))
return 1;
if (hpsim_cons.flags & CON_ENABLED)
return 1;
register_console(&hpsim_cons);
return 0;
}
|
