blob: 5ec936d8ab22488fead77613c52649d24cdb6cce (
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
|
/*
* Bootstrap code for the INTEL
*/
#include <arch/io.h>
#include <console/console.h>
#include <string.h>
#include <pc80/mc146818rtc.h>
static int initialized;
/* initialize the console */
void console_init(void)
{
struct console_driver *driver;
if(get_option(&console_loglevel, "debug_level"))
console_loglevel=DEFAULT_CONSOLE_LOGLEVEL;
for(driver = console_drivers; driver < econsole_drivers; driver++) {
if (!driver->init)
continue;
driver->init();
}
initialized = 1;
}
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 (!initialized)
return;
if (byte == '\n')
__console_tx_byte('\r');
__console_tx_byte(byte);
}
/*
* Write POST information
*/
void post_code(uint8_t value)
{
#if CONFIG_SERIAL_POST==1
printk_info("POST: 0x%02x\n", value);
#elsif !define(NO_POST)
outb(value, 0x80);
#endif
}
/* Report a fatal error */
void die(char *msg)
{
printk_emerg("%s", msg);
post_code(0xff);
while (1); /* Halt */
}
|