37 lines
717 B
C
37 lines
717 B
C
|
/*
|
||
|
|
* drivers/power/process.c - Functions for saving/restoring console.
|
||
|
|
*
|
||
|
|
* Originally from swsusp.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/vt_kern.h>
|
||
|
|
#include <linux/kbd_kern.h>
|
||
|
|
#include <linux/console.h>
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include "power.h"
|
||
|
|
|
||
|
|
#if defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE)
|
||
|
|
#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 = kmsg_redirect;
|
||
|
|
kmsg_redirect = SUSPEND_CONSOLE;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void pm_restore_console(void)
|
||
|
|
{
|
||
|
|
if (orig_fgconsole >= 0) {
|
||
|
|
vt_move_to_console(orig_fgconsole, 0);
|
||
|
|
kmsg_redirect = orig_kmsg;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
#endif
|