// SPDX-License-Identifier: GPL-2.0
|
/*
|
* printf.c: Internal prom library printf facility.
|
*
|
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
|
*/
|
|
/* 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) {
|
pr_info("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;
|
}
|
