kernel/power/console.c

   1 /*
   2  * drivers/power/process.c - Functions for saving/restoring console.
   3  *
   4  * Originally from swsusp.
   5  */
   6
   7 #include <linux/vt_kern.h>
   8 #include <linux/kbd_kern.h>
   9 #include <linux/console.h>
  10 #include "power.h"
  11
  12 extern int console_suspended;
  13
  14 int pm_prepare_console(void)
  15 {
  16         acquire_console_sem();
  17         console_suspended = 1;
  18         system_state = SYSTEM_BOOTING;
  19         return 0;
  20 }
  21
  22 void pm_restore_console(void)
  23 {
  24         console_suspended = 0;
  25         system_state = SYSTEM_RUNNING;
  26         release_console_sem();
  27         return;
  28 }