IPowerManager.cpp revision f74865eb525b34af7983777a522a5bfc496fc1c5 
1/*
2 * Copyright (C) 2011 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#define LOG_TAG "IPowerManager"
18//#define LOG_NDEBUG 0
19#include <utils/Log.h>
20
21#include <stdint.h>
22#include <sys/types.h>
23
24#include <binder/Parcel.h>
25
26#include <powermanager/IPowerManager.h>
27
28namespace android {
29
30// must be kept in sync with IPowerManager.aidl
31enum {
32    ACQUIRE_WAKE_LOCK = IBinder::FIRST_CALL_TRANSACTION,
33    ACQUIRE_WAKE_LOCK_UID = IBinder::FIRST_CALL_TRANSACTION + 1,
34    RELEASE_WAKE_LOCK = IBinder::FIRST_CALL_TRANSACTION + 2,
35    UPDATE_WAKE_LOCK_UIDS = IBinder::FIRST_CALL_TRANSACTION + 3,
36    POWER_HINT = IBinder::FIRST_CALL_TRANSACTION + 4,
37};
38
39class BpPowerManager : public BpInterface<IPowerManager>
40{
41public:
42    BpPowerManager(const sp<IBinder>& impl)
43        : BpInterface<IPowerManager>(impl)
44    {
45    }
46
47    virtual status_t acquireWakeLock(int flags, const sp<IBinder>& lock, const String16& tag,
48            const String16& packageName)
49    {
50        Parcel data, reply;
51        data.writeInterfaceToken(IPowerManager::getInterfaceDescriptor());
52
53        data.writeStrongBinder(lock);
54        data.writeInt32(flags);
55        data.writeString16(tag);
56        data.writeString16(packageName);
57        data.writeInt32(0); // no WorkSource
58        data.writeString16(NULL, 0); // no history tag
59        return remote()->transact(ACQUIRE_WAKE_LOCK, data, &reply);
60    }
61
62    virtual status_t acquireWakeLockWithUid(int flags, const sp<IBinder>& lock, const String16& tag,
63            const String16& packageName, int uid)
64    {
65        Parcel data, reply;
66        data.writeInterfaceToken(IPowerManager::getInterfaceDescriptor());
67
68        data.writeStrongBinder(lock);
69        data.writeInt32(flags);
70        data.writeString16(tag);
71        data.writeString16(packageName);
72        data.writeInt32(uid); // uid to blame for the work
73        return remote()->transact(ACQUIRE_WAKE_LOCK_UID, data, &reply);
74    }
75
76    virtual status_t releaseWakeLock(const sp<IBinder>& lock, int flags)
77    {
78        Parcel data, reply;
79        data.writeInterfaceToken(IPowerManager::getInterfaceDescriptor());
80        data.writeStrongBinder(lock);
81        data.writeInt32(flags);
82        return remote()->transact(RELEASE_WAKE_LOCK, data, &reply);
83    }
84
85    virtual status_t updateWakeLockUids(const sp<IBinder>& lock, int len, const int *uids) {
86        Parcel data, reply;
87        data.writeInterfaceToken(IPowerManager::getInterfaceDescriptor());
88        data.writeStrongBinder(lock);
89        data.writeInt32Array(len, uids);
90        // We don't really care too much if this succeeds (there's nothing we can do if it doesn't)
91        // but it should return ASAP
92        return remote()->transact(UPDATE_WAKE_LOCK_UIDS, data, &reply, IBinder::FLAG_ONEWAY);
93    }
94
95    virtual status_t powerHint(int hintId, int param)
96    {
97        Parcel data, reply;
98        data.writeInterfaceToken(IPowerManager::getInterfaceDescriptor());
99        data.writeInt32(hintId);
100        data.writeInt32(param);
101        return remote()->transact(POWER_HINT, data, &reply, IBinder::FLAG_ONEWAY);
102    }
103};
104
105IMPLEMENT_META_INTERFACE(PowerManager, "android.os.IPowerManager");
106
107// ----------------------------------------------------------------------------
108
109}; // namespace android
110