37 lines
717 B
C
37 lines
717 B
C
/*
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* drivers/power/process.c - Functions for saving/restoring console.
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*
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* Originally from swsusp.
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*/
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#include <linux/vt_kern.h>
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#include <linux/kbd_kern.h>
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#include <linux/console.h>
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#include <linux/module.h>
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#include "power.h"
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#if defined(CONFIG_VT) && defined(CONFIG_VT_CONSOLE)
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#define SUSPEND_CONSOLE (MAX_NR_CONSOLES-1)
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static int orig_fgconsole, orig_kmsg;
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int pm_prepare_console(void)
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{
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orig_fgconsole = vt_move_to_console(SUSPEND_CONSOLE, 1);
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if (orig_fgconsole < 0)
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return 1;
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orig_kmsg = kmsg_redirect;
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kmsg_redirect = SUSPEND_CONSOLE;
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return 0;
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}
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void pm_restore_console(void)
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{
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if (orig_fgconsole >= 0) {
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vt_move_to_console(orig_fgconsole, 0);
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kmsg_redirect = orig_kmsg;
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}
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}
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#endif
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