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/* $Id: print.c,v 1.1 1999/01/17 03:49:38 ralf Exp $
*
* print.c: Simple print fascility
*
* Copyright (C) 1998 Gleb Raiko & Vladimir Roganov
*
*/
#include <stdarg.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <asm/baget/baget.h>
/*
* Define this to see 'baget_printk' (debug) messages
*/
// #define BAGET_PRINTK
/*
* This function is same for BALO and Linux baget_printk,
* and normally prints characted to second (UART A) console.
*/
static void delay(void) {}
static void outc_low(char c)
{
int i;
vac_outb(c, VAC_UART_B_TX);
for (i=0; i<10000; i++)
delay();
}
void outc(char c)
{
if (c == '\n')
outc_low('\r');
outc_low(c);
}
void outs(char *s)
{
while(*s) outc(*s++);
}
void baget_write(char *s, int l)
{
while(l--)
outc(*s++);
}
int baget_printk(const char *fmt, ...)
{
#ifdef BAGET_PRINTK
va_list args;
int i;
static char buf[1024];
va_start(args, fmt);
i = vsprintf(buf, fmt, args); /* hopefully i < sizeof(buf)-4 */
va_end(args);
baget_write(buf, i);
return i;
#else
return 0;
#endif
}
static __inline__ void puthex( int a )
{
static char s[9];
static char e[] = "0123456789ABCDEF";
int i;
for( i = 7; i >= 0; i--, a >>= 4 ) s[i] = e[a & 0x0F];
s[8] = '\0';
outs( s );
}
void __init balo_printf( char *f, ... )
{
int *arg = (int*)&f + 1;
char c;
int format = 0;
while((c = *f++) != 0) {
switch(c) {
default:
if(format) {
outc('%');
format = 0;
}
outc( c );
break;
case '%':
if( format ){
format = 0;
outc(c);
} else format = 1;
break;
case 'x':
if(format) puthex( *arg++ );
else outc(c);
format = 0;
break;
case 's':
if( format ) outs((char *)*arg++);
else outc(c);
format = 0;
break;
}
}
}
void __init balo_hungup(void)
{
outs("Hunging up.\n");
while(1);
}
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