arch/m68k/sun3/prom/printf.c

   1 /* $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
  11 #include <linux/config.h>
  12 #include <linux/kernel.h>
  13
  14 #include <asm/openprom.h>
  15 #include <asm/oplib.h>
  16
  17 #ifdef CONFIG_KGDB
  18 extern int kgdb_initialized;
  19 #endif
  20
  21 static char ppbuf[1024];
  22
  23 void
  24 prom_printf(char *fmt, ...)
  25 {
  26         va_list args;
  27         char ch, *bptr;
  28         int i;
  29
  30         va_start(args, fmt);
  31
  32 #ifdef CONFIG_KGDB
  33         ppbuf[0] = 'O';
  34         i = vsprintf(ppbuf + 1, fmt, args) + 1;
  35 #else
  36         i = vsprintf(ppbuf, fmt, args);
  37 #endif
  38
  39         bptr = ppbuf;
  40
  41 #ifdef CONFIG_AP1000
  42         ap_write(1,bptr,strlen(bptr));
  43 #else
  44
  45 #ifdef CONFIG_KGDB
  46         if (kgdb_initialized) {
  47                 printk("kgdb_initialized = %d\n", kgdb_initialized);
  48                 putpacket(bptr, 1);
  49         } else
  50 #else
  51         while((ch = *(bptr++)) != 0) {
  52                 if(ch == '\n')
  53                         prom_putchar('\r');
  54
  55                 prom_putchar(ch);
  56         }
  57 #endif
  58 #endif
  59         va_end(args);
  60         return;
  61 }