LXR linux/arch/m68k/sun3/prom/printf.c

   1/*
   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/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_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
  53        va_end(args);
  54        return;
  55}
  56