Adrian Bunk | f30828a | 2008-07-17 21:16:08 +0200 | [diff] [blame] | 1 | /* |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 11 | #include <linux/kernel.h> |
| 12 | |
| 13 | #include <asm/openprom.h> |
| 14 | #include <asm/oplib.h> |
| 15 | |
| 16 | #ifdef CONFIG_KGDB |
| 17 | extern int kgdb_initialized; |
| 18 | #endif |
| 19 | |
| 20 | static char ppbuf[1024]; |
| 21 | |
| 22 | void |
| 23 | prom_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 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 40 | #ifdef CONFIG_KGDB |
| 41 | if (kgdb_initialized) { |
| 42 | printk("kgdb_initialized = %d\n", kgdb_initialized); |
| 43 | putpacket(bptr, 1); |
| 44 | } else |
| 45 | #else |
| 46 | while((ch = *(bptr++)) != 0) { |
| 47 | if(ch == '\n') |
| 48 | prom_putchar('\r'); |
| 49 | |
| 50 | prom_putchar(ch); |
| 51 | } |
| 52 | #endif |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 53 | va_end(args); |
| 54 | return; |
| 55 | } |