printf.c

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/*
 * printf.c:  Internal prom library printf facility.
 *
 * Copyright (C) 1995 David S. Miller ([email protected])
 */

/* This routine is internal to the prom library, no one else should know
 * about or use it!  It's simple and smelly anyway....
 */

#include <linux/kernel.h>

#include <asm/openprom.h>
#include <asm/oplib.h>

#ifdef CONFIG_KGDB
extern int kgdb_initialized;
#endif

static char ppbuf[1024];

void
prom_printf(char *fmt, ...)
{
    va_list args;
    char ch, *bptr;
    int i;

    va_start(args, fmt);

#ifdef CONFIG_KGDB
    ppbuf[0] = 'O';
    i = vsprintf(ppbuf + 1, fmt, args) + 1;
#else
    i = vsprintf(ppbuf, fmt, args);
#endif

    bptr = ppbuf;

#ifdef CONFIG_KGDB
    if (kgdb_initialized) {
        printk("kgdb_initialized = %d\n", kgdb_initialized);
        putpacket(bptr, 1);
    } else
#else
    while((ch = *(bptr++)) != 0) {
        if(ch == '\n')
            prom_putchar('\r');

        prom_putchar(ch);
    }
#endif
    va_end(args);
    return;
}