swh:1:snp:c3bf2749e3476071fa748f67b0ffa2fdc5fe49d9
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Tip revision: a0d271cbfed1dd50278c6b06bead3d00ba0a88f9 authored by Linus Torvalds on 30 September 2012, 23:47:46 UTC
Linux 3.6
Tip revision: a0d271c
console.c
/*
 * Functions for saving/restoring console.
 *
 * Originally from swsusp.
 */

#include <linux/vt_kern.h>
#include <linux/kbd_kern.h>
#include <linux/vt.h>
#include <linux/module.h>
#include "power.h"

#define SUSPEND_CONSOLE	(MAX_NR_CONSOLES-1)

static int orig_fgconsole, orig_kmsg;

int pm_prepare_console(void)
{
	orig_fgconsole = vt_move_to_console(SUSPEND_CONSOLE, 1);
	if (orig_fgconsole < 0)
		return 1;

	orig_kmsg = vt_kmsg_redirect(SUSPEND_CONSOLE);
	return 0;
}

void pm_restore_console(void)
{
	if (orig_fgconsole >= 0) {
		vt_move_to_console(orig_fgconsole, 0);
		vt_kmsg_redirect(orig_kmsg);
	}
}
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