[GitHub/mt8127/android_kernel_alcatel_ttab.git] / kernel / power / 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);
	}
}
Commit	Line	Data
1da177e4	1	/*
37cce26b	2	* Functions for saving/restoring console.
1da177e4 LT	3	*
	4	* Originally from swsusp.
	5	*/
	6
	7	#include <linux/vt_kern.h>
	8	#include <linux/kbd_kern.h>
5ada918b	9	#include <linux/vt.h>
b6f448e9	10	#include <linux/module.h>
1da177e4 LT	11	#include "power.h"
1da177e4 LT	12
46cd2f32 RW	13	#define SUSPEND_CONSOLE (MAX_NR_CONSOLES-1)
46cd2f32 RW	14
1da177e4	15	static int orig_fgconsole, orig_kmsg;
1da177e4 LT	16
	17	int pm_prepare_console(void)
	18	{
8d233558 AC	19	orig_fgconsole = vt_move_to_console(SUSPEND_CONSOLE, 1);
8d233558 AC	20	if (orig_fgconsole < 0)
1da177e4	21	return 1;
1da177e4	22
5ada918b	23	orig_kmsg = vt_kmsg_redirect(SUSPEND_CONSOLE);
1da177e4 LT	24	return 0;
	25	}
	26
	27	void pm_restore_console(void)
	28	{
8d233558 AC	29	if (orig_fgconsole >= 0) {
8d233558 AC	30	vt_move_to_console(orig_fgconsole, 0);
5ada918b	31	vt_kmsg_redirect(orig_kmsg);
b090f9fa	32	}
1da177e4	33	}