[netwatch.git] / grubload / output.c

/* output.c
 * Console output routines
 * NetWatch multiboot loader
 *
 * Copyright (c) 2008 Jacob Potter and Joshua Wise.  All rights reserved.
 * This program is free software; you can redistribute and/or modify it under
 * the terms found in the file LICENSE in the root of this source tree. 
 *
 */


#include <stdarg.h>
#include <minilib.h>
#include <console.h>
#include <output.h>
#include <smram.h>

#define OUTBLEN 160

static void safeputs(const char *s)
{
	smram_state_t old = smram_save_state();
	smram_aseg_set_state(SMRAM_ASEG_SMMONLY);
	puts(s);
	smram_restore_state(old);
}
void (*output)(const char *s) = safeputs;

static void miniprintf(const char *fmt, ...)
{
	va_list va;
	char b[OUTBLEN+1];
	
	va_start(va, fmt);
	vsnprintf(b, OUTBLEN, fmt, va);
	va_end(va);
	
	output(b);
	putbyte('\n');
}

void (*outputf)(const char *s, ...) = miniprintf;
Commit	Line	Data
f1584bb0 JW	1	/* output.c
	2	* Console output routines
	3	* NetWatch multiboot loader
	4	*
	5	* Copyright (c) 2008 Jacob Potter and Joshua Wise. All rights reserved.
	6	* This program is free software; you can redistribute and/or modify it under
	7	* the terms found in the file LICENSE in the root of this source tree.
	8	*
	9	*/
	10
	11
efea5b4e JW	12	#include <stdarg.h>
	13	#include <minilib.h>
	14	#include <console.h>
	15	#include <output.h>
	16	#include <smram.h>
	17
	18	#define OUTBLEN 160
	19
	20	static void safeputs(const char *s)
	21	{
f2b87dd6	22	smram_state_t old = smram_save_state();
efea5b4e JW	23	smram_aseg_set_state(SMRAM_ASEG_SMMONLY);
	24	puts(s);
	25	smram_restore_state(old);
	26	}
	27	void (output)(const char s) = safeputs;
	28
	29	static void miniprintf(const char *fmt, ...)
	30	{
	31	va_list va;
	32	char b[OUTBLEN+1];
	33
	34	va_start(va, fmt);
	35	vsnprintf(b, OUTBLEN, fmt, va);
	36	va_end(va);
	37
	38	output(b);
	39	putbyte('\n');
	40	}
	41
	42	void (outputf)(const char s, ...) = miniprintf;