summaryrefslogtreecommitdiff
path: root/src/console/console.c
blob: fb31c46a7a6c852acd239e5232fc6c656deeea98 (plain)
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
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
/*
 * This file is part of the coreboot project.
 *
 * Copyright (C) 2003 Eric Biederman
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; version 2 of the License.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <console/console.h>
#include <build.h>
#include <arch/hlt.h>
#include <arch/io.h>

#if CONFIG_CONSOLE_NE2K
#include <console/ne2k.h>
#endif

#ifndef __PRE_RAM__
#include <string.h>
#include <pc80/mc146818rtc.h>

/* initialize the console */
void console_init(void)
{
	struct console_driver *driver;
	if(get_option(&console_loglevel, "debug_level"))
		console_loglevel=CONFIG_DEFAULT_CONSOLE_LOGLEVEL;

	for(driver = console_drivers; driver < econsole_drivers; driver++) {
		if (!driver->init)
			continue;
		driver->init();
	}
}

static void __console_tx_byte(unsigned char byte)
{
	struct console_driver *driver;
	for(driver = console_drivers; driver < econsole_drivers; driver++) {
		driver->tx_byte(byte);
	}
}

void console_tx_flush(void)
{
	struct console_driver *driver;
	for(driver = console_drivers; driver < econsole_drivers; driver++) {
		if (!driver->tx_flush)
			continue;
		driver->tx_flush();
	}
}

void console_tx_byte(unsigned char byte)
{
	if (byte == '\n')
		__console_tx_byte('\r');
	__console_tx_byte(byte);
}

unsigned char console_rx_byte(void)
{
	struct console_driver *driver;
	for(driver = console_drivers; driver < econsole_drivers; driver++) {
		if (driver->tst_byte)
			break;
	}
	if (driver == econsole_drivers)
		return 0;
	while (!driver->tst_byte());
	return driver->rx_byte();
}

int console_tst_byte(void)
{
	struct console_driver *driver;
	for(driver = console_drivers; driver < econsole_drivers; driver++)
		if (driver->tst_byte)
			return driver->tst_byte();
	return 0;
}

/*
 *    Write POST information
 */
void post_code(u8 value)
{
#if !defined(CONFIG_NO_POST) || CONFIG_NO_POST==0
#if CONFIG_SERIAL_POST==1
	printk(BIOS_EMERG, "POST: 0x%02x\n", value);
#endif
	outb(value, 0x80);
#endif
}

/* Report a fatal error */
void __attribute__((noreturn)) die(const char *msg)
{
	printk(BIOS_EMERG, "%s", msg);
	//post_code(0xff);
 	for (;;)
		hlt();		/* Halt */
}

#else

void console_init(void)
{
#if CONFIG_CONSOLE_NE2K
	ne2k_init(CONFIG_CONSOLE_NE2K_IO_PORT);
#endif
	static const char console_test[] =
		"\n\ncoreboot-"
		COREBOOT_VERSION
		COREBOOT_EXTRA_VERSION
		" "
		COREBOOT_BUILD
		" starting...\n";
	print_info(console_test);
}

void post_code(u8 value)
{
#if !defined(CONFIG_NO_POST) || CONFIG_NO_POST==0
#if CONFIG_SERIAL_POST==1
	print_emerg("POST: 0x");
	print_emerg_hex8(value);
	print_emerg("\n");
#endif
	outb(value, 0x80);
#endif
}

void die(const char *str)
{
	print_emerg(str);
	do {
		hlt();
	} while(1);
}
#endif