add the 'goldfish' target, useful for experimenting with virtual phone hardware ...

[openwrt/svn-archive/archive.git] / target / linux / goldfish / patches-2.6.30 / 0064-PM-Add-wake-lock-api.patch

diff --git a/target/linux/goldfish/patches-2.6.30/0064-PM-Add-wake-lock-api.patch b/target/linux/goldfish/patches-2.6.30/0064-PM-Add-wake-lock-api.patch
new file mode 100644 (file)
index 0000000..bd4d364
--- /dev/null
+++ b/target/linux/goldfish/patches-2.6.30/0064-PM-Add-wake-lock-api.patch
@@ -0,0 +1,104 @@
+From e93bd714c424d9fe907cb1d8ec5ce784767a3b16 Mon Sep 17 00:00:00 2001
+From: =?utf-8?q?Arve=20Hj=C3=B8nnev=C3=A5g?= <arve@android.com>
+Date: Fri, 26 Sep 2008 22:10:56 -0700
+Subject: [PATCH 064/134] PM: Add wake lock api.
+
+---
+ include/linux/wakelock.h |   91 ++++++++++++++++++++++++++++++++++++++++++++++
+ 1 files changed, 91 insertions(+), 0 deletions(-)
+ create mode 100755 include/linux/wakelock.h
+
+--- /dev/null
++++ b/include/linux/wakelock.h
+@@ -0,0 +1,91 @@
++/* include/linux/wakelock.h
++ *
++ * Copyright (C) 2007-2008 Google, Inc.
++ *
++ * This software is licensed under the terms of the GNU General Public
++ * License version 2, as published by the Free Software Foundation, and
++ * may be copied, distributed, and modified under those terms.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ */
++
++#ifndef _LINUX_WAKELOCK_H
++#define _LINUX_WAKELOCK_H
++
++#include <linux/list.h>
++#include <linux/ktime.h>
++
++/* A wake_lock prevents the system from entering suspend or other low power
++ * states when active. If the type is set to WAKE_LOCK_SUSPEND, the wake_lock
++ * prevents a full system suspend. If the type is WAKE_LOCK_IDLE, low power
++ * states that cause large interrupt latencies or that disable a set of
++ * interrupts will not entered from idle until the wake_locks are released.
++ */
++
++enum {
++      WAKE_LOCK_SUSPEND, /* Prevent suspend */
++      WAKE_LOCK_IDLE,    /* Prevent low power idle */
++      WAKE_LOCK_TYPE_COUNT
++};
++
++struct wake_lock {
++#ifdef CONFIG_HAS_WAKELOCK
++      struct list_head    link;
++      int                 flags;
++      const char         *name;
++      unsigned long       expires;
++#ifdef CONFIG_WAKELOCK_STAT
++      struct {
++              int             count;
++              int             expire_count;
++              int             wakeup_count;
++              ktime_t         total_time;
++              ktime_t         prevent_suspend_time;
++              ktime_t         max_time;
++              ktime_t         last_time;
++      } stat;
++#endif
++#endif
++};
++
++#ifdef CONFIG_HAS_WAKELOCK
++
++void wake_lock_init(struct wake_lock *lock, int type, const char *name);
++void wake_lock_destroy(struct wake_lock *lock);
++void wake_lock(struct wake_lock *lock);
++void wake_lock_timeout(struct wake_lock *lock, long timeout);
++void wake_unlock(struct wake_lock *lock);
++
++/* wake_lock_active returns a non-zero value if the wake_lock is currently
++ * locked. If the wake_lock has a timeout, it does not check the timeout
++ * but if the timeout had aready been checked it will return 0.
++ */
++int wake_lock_active(struct wake_lock *lock);
++
++/* has_wake_lock returns 0 if no wake locks of the specified type are active,
++ * and non-zero if one or more wake locks are held. Specifically it returns
++ * -1 if one or more wake locks with no timeout are active or the
++ * number of jiffies until all active wake locks time out.
++ */
++long has_wake_lock(int type);
++
++#else
++
++static inline void wake_lock_init(struct wake_lock *lock, int type,
++                                      const char *name) {}
++static inline void wake_lock_destroy(struct wake_lock *lock) {}
++static inline void wake_lock(struct wake_lock *lock) {}
++static inline void wake_lock_timeout(struct wake_lock *lock, long timeout) {}
++static inline void wake_unlock(struct wake_lock *lock) {}
++
++static inline int wake_lock_active(struct wake_lock *lock) { return 0; }
++static inline long has_wake_lock(int type) { return 0; }
++
++#endif
++
++#endif
++