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Linus Torvalds1da177e2005-04-16 15:20:36 -07001/* $Id: printf.c,v 1.5 1996/04/04 16:31:07 tridge Exp $
2 * printf.c: Internal prom library printf facility.
3 *
4 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
5 */
6
7/* This routine is internal to the prom library, no one else should know
8 * about or use it! It's simple and smelly anyway....
9 */
10
Linus Torvalds1da177e2005-04-16 15:20:36 -070011#include <linux/kernel.h>
12
13#include <asm/openprom.h>
14#include <asm/oplib.h>
15
16#ifdef CONFIG_KGDB
17extern int kgdb_initialized;
18#endif
19
20static char ppbuf[1024];
21
22void
23prom_printf(char *fmt, ...)
24{
25 va_list args;
26 char ch, *bptr;
27 int i;
28
29 va_start(args, fmt);
30
31#ifdef CONFIG_KGDB
32 ppbuf[0] = 'O';
33 i = vsprintf(ppbuf + 1, fmt, args) + 1;
34#else
35 i = vsprintf(ppbuf, fmt, args);
36#endif
37
38 bptr = ppbuf;
39
40#ifdef CONFIG_AP1000
41 ap_write(1,bptr,strlen(bptr));
42#else
43
44#ifdef CONFIG_KGDB
45 if (kgdb_initialized) {
46 printk("kgdb_initialized = %d\n", kgdb_initialized);
47 putpacket(bptr, 1);
48 } else
49#else
50 while((ch = *(bptr++)) != 0) {
51 if(ch == '\n')
52 prom_putchar('\r');
53
54 prom_putchar(ch);
55 }
56#endif
57#endif
58 va_end(args);
59 return;
60}