summaryrefslogtreecommitdiff
path: root/src/arch/x86/lib/romcc_console.c
blob: c5e688258b5bd10ec16c5a2157e642566dc64443 (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
/*
 * 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 <stdint.h>
#include <console/loglevel.h>
#include <console/post_codes.h>

/* __PRE_RAM__ */
/* Using a global varible can cause problems when we reset the stack
 * from cache as ram to ram. If we make this a define USE_SHARED_STACK
 * we could use the same code on all architectures.
 */
#define console_loglevel CONFIG_DEFAULT_CONSOLE_LOGLEVEL
#if CONFIG_CONSOLE_SERIAL8250
#include <uart8250.h>
#endif

#if CONFIG_CONSOLE_SERIAL8250
#include "drivers/uart/util.c"
#include "lib/uart8250.c"
#endif
#if CONFIG_CONSOLE_NE2K
#include "drivers/net/ne2k.c"
#endif

static void __console_tx_byte(unsigned char byte)
{
#if CONFIG_CONSOLE_SERIAL8250
	uart8250_tx_byte(CONFIG_TTYS0_BASE, byte);
#endif
#if CONFIG_CONSOLE_NE2K
	ne2k_append_data_byte(byte, CONFIG_CONSOLE_NE2K_IO_PORT);
#endif
}

static void __console_tx_nibble(unsigned nibble)
{
	unsigned char digit;
	digit = nibble + '0';
	if (digit > '9') {
		digit += 39;
	}
	__console_tx_byte(digit);
}

static void __console_tx_char(int loglevel, unsigned char byte)
{
	if (console_loglevel >= loglevel) {
#if CONFIG_CONSOLE_SERIAL8250
		uart8250_tx_byte(CONFIG_TTYS0_BASE, byte);
#endif
#if CONFIG_CONSOLE_NE2K
		ne2k_append_data_byte(byte, CONFIG_CONSOLE_NE2K_IO_PORT);
		ne2k_transmit(CONFIG_CONSOLE_NE2K_IO_PORT);
#endif
	}
}

static void __console_tx_hex8(int loglevel, unsigned char value)
{
	if (console_loglevel >= loglevel) {
		__console_tx_nibble((value >>  4U) & 0x0fU);
		__console_tx_nibble(value & 0x0fU);
	}
#if CONFIG_CONSOLE_NE2K
		ne2k_transmit(CONFIG_CONSOLE_NE2K_IO_PORT);
#endif
}

static void __console_tx_hex16(int loglevel, unsigned short value)
{
	if (console_loglevel >= loglevel) {
		__console_tx_nibble((value >> 12U) & 0x0fU);
		__console_tx_nibble((value >>  8U) & 0x0fU);
		__console_tx_nibble((value >>  4U) & 0x0fU);
		__console_tx_nibble(value & 0x0fU);
	}
#if CONFIG_CONSOLE_NE2K
		ne2k_transmit(CONFIG_CONSOLE_NE2K_IO_PORT);
#endif
}

static void __console_tx_hex32(int loglevel, unsigned int value)
{
	if (console_loglevel >= loglevel) {
		__console_tx_nibble((value >> 28U) & 0x0fU);
		__console_tx_nibble((value >> 24U) & 0x0fU);
		__console_tx_nibble((value >> 20U) & 0x0fU);
		__console_tx_nibble((value >> 16U) & 0x0fU);
		__console_tx_nibble((value >> 12U) & 0x0fU);
		__console_tx_nibble((value >>  8U) & 0x0fU);
		__console_tx_nibble((value >>  4U) & 0x0fU);
		__console_tx_nibble(value & 0x0fU);
	}
#if CONFIG_CONSOLE_NE2K
		ne2k_transmit(CONFIG_CONSOLE_NE2K_IO_PORT);
#endif
}

static void __console_tx_string(int loglevel, const char *str)
{
	if (console_loglevel >= loglevel) {
		unsigned char ch;
		while((ch = *str++) != '\0') {
			if (ch == '\n')
				__console_tx_byte('\r');
			__console_tx_byte(ch);
		}
#if CONFIG_CONSOLE_NE2K
		ne2k_transmit(CONFIG_CONSOLE_NE2K_IO_PORT);
#endif
	}
}

/* if included by romcc, include the sources, too. romcc can't use prototypes */
#include <console/console.c>
#include <console/post.c>
#include <console/die.c>