target/linux/goldfish/patches-2.6.30/0065-PM-Add-early-suspend-api.patch

   1 From 4f76252afe98fd017894e61c296bc61836e67a4a Mon Sep 17 00:00:00 2001
   2 From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com>
   3 Date: Fri, 26 Sep 2008 22:10:56 -0700
   4 Subject: [PATCH 065/134] PM: Add early suspend api.
   5
   6 ---
   7  include/linux/earlysuspend.h |   56 ++++++++++++++++++++++++++++++++++++++++++
   8  1 files changed, 56 insertions(+), 0 deletions(-)
   9  create mode 100755 include/linux/earlysuspend.h
  10
  11 --- /dev/null
  12 +++ b/include/linux/earlysuspend.h
  13 @@ -0,0 +1,56 @@
  14 +/* include/linux/earlysuspend.h
  15 + *
  16 + * Copyright (C) 2007-2008 Google, Inc.
  17 + *
  18 + * This software is licensed under the terms of the GNU General Public
  19 + * License version 2, as published by the Free Software Foundation, and
  20 + * may be copied, distributed, and modified under those terms.
  21 + *
  22 + * This program is distributed in the hope that it will be useful,
  23 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
  24 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  25 + * GNU General Public License for more details.
  26 + *
  27 + */
  28 +
  29 +#ifndef _LINUX_EARLYSUSPEND_H
  30 +#define _LINUX_EARLYSUSPEND_H
  31 +
  32 +#ifdef CONFIG_HAS_EARLYSUSPEND
  33 +#include <linux/list.h>
  34 +#endif
  35 +
  36 +/* The early_suspend structure defines suspend and resume hooks to be called
  37 + * when the user visible sleep state of the system changes, and a level to
  38 + * control the order. They can be used to turn off the screen and input
  39 + * devices that are not used for wakeup.
  40 + * Suspend handlers are called in low to high level order, resume handlers are
  41 + * called in the opposite order. If, when calling register_early_suspend,
  42 + * the suspend handlers have already been called without a matching call to the
  43 + * resume handlers, the suspend handler will be called directly from
  44 + * register_early_suspend. This direct call can violate the normal level order.
  45 + */
  46 +enum {
  47 +       EARLY_SUSPEND_LEVEL_BLANK_SCREEN = 50,
  48 +       EARLY_SUSPEND_LEVEL_STOP_DRAWING = 100,
  49 +       EARLY_SUSPEND_LEVEL_DISABLE_FB = 150,
  50 +};
  51 +struct early_suspend {
  52 +#ifdef CONFIG_HAS_EARLYSUSPEND
  53 +       struct list_head link;
  54 +       int level;
  55 +       void (*suspend)(struct early_suspend *h);
  56 +       void (*resume)(struct early_suspend *h);
  57 +#endif
  58 +};
  59 +
  60 +#ifdef CONFIG_HAS_EARLYSUSPEND
  61 +void register_early_suspend(struct early_suspend *handler);
  62 +void unregister_early_suspend(struct early_suspend *handler);
  63 +#else
  64 +#define register_early_suspend(handler) do { } while (0)
  65 +#define unregister_early_suspend(handler) do { } while (0)
  66 +#endif
  67 +
  68 +#endif
  69 +