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
|
/*
* blatantly copied from linux/kernel/printk.c
*
* Copyright (C) 1991, 1992 Linus Torvalds
*
*/
#include <console/console.h>
#include <console/streams.h>
#include <console/vtxprintf.h>
#include <smp/spinlock.h>
#include <smp/node.h>
#include <stddef.h>
#include <trace.h>
DECLARE_SPIN_LOCK(console_lock)
void do_putchar(unsigned char byte)
{
console_tx_byte(byte);
}
static void wrap_putchar(unsigned char byte, void *data)
{
do_putchar(byte);
}
int do_printk(int msg_level, const char *fmt, ...)
{
va_list args;
int i;
if (!console_log_level(msg_level))
return 0;
#if IS_ENABLED (CONFIG_SQUELCH_EARLY_SMP) && defined(__PRE_RAM__)
if (!boot_cpu())
return 0;
#endif
DISABLE_TRACE;
spin_lock(&console_lock);
va_start(args, fmt);
i = vtxprintf(wrap_putchar, fmt, args, NULL);
va_end(args);
console_tx_flush();
spin_unlock(&console_lock);
ENABLE_TRACE;
return i;
}
#if IS_ENABLED (CONFIG_CHROMEOS)
void do_printk_va_list(int msg_level, const char *fmt, va_list args)
{
if (!console_log_level(msg_level))
return;
vtxprintf(wrap_putchar, fmt, args, NULL);
console_tx_flush();
}
#endif /* CONFIG_CHROMEOS */
|
