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Revision ce4796d1e16cf3761dc2a02b8d588667d05b3078 authored by Linus Torvalds on 07 March 2008, 03:32:33 UTC, committed by Linus Torvalds on 07 March 2008, 03:32:33 UTC 
Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.25
 
* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6.25:
  sh: Fix up the sh64 build.
  sh: Fix up SH7710 VoIP-GW build.
  sh: Flag PMB support as EXPERIMENTAL.
  sh: Update r7780mp defconfig.
  fb: hitfb: Balance probe/remove section annotations.
  sh: hp6xx: Fix up hp6xx_apm build failure.
  fb: pvr2fb: Fix up remaining section mismatch.
  sh: Fix up section mismatches.
  sh: hp6xx: Correct APM output.
  sh: update se7780 defconfig
  sh: replace remaining __FUNCTION__ occurrences
  sh: export copy-page() to modules
  sh_ksyms_32.c update for gcc 4.3
  sh/mm/pg-sh7705.c must #include <linux/fs.h>
2 parent s 46fbdf8 + 7b9726a
Raw File
console.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 "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)
{
	acquire_console_sem();

	orig_fgconsole = fg_console;

	if (vc_allocate(SUSPEND_CONSOLE)) {
	  /* we can't have a free VC for now. Too bad,
	   * we don't want to mess the screen for now. */
		release_console_sem();
		return 1;
	}

	if (set_console(SUSPEND_CONSOLE)) {
		/*
		 * We're unable to switch to the SUSPEND_CONSOLE.
		 * Let the calling function know so it can decide
		 * what to do.
		 */
		release_console_sem();
		return 1;
	}
	release_console_sem();

	if (vt_waitactive(SUSPEND_CONSOLE)) {
		pr_debug("Suspend: Can't switch VCs.");
		return 1;
	}
	orig_kmsg = kmsg_redirect;
	kmsg_redirect = SUSPEND_CONSOLE;
	return 0;
}

void pm_restore_console(void)
{
	acquire_console_sem();
	set_console(orig_fgconsole);
	release_console_sem();
	kmsg_redirect = orig_kmsg;
	return;
}
#endif
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