1/*
2 * Copyright (C) 2008 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#ifndef ANDROID_HARDWARE_ICAMERASERVICE_H
18#define ANDROID_HARDWARE_ICAMERASERVICE_H
19
20#include <utils/RefBase.h>
21#include <binder/IInterface.h>
22#include <binder/Parcel.h>
23
24namespace android {
25
26class ICamera;
27class ICameraClient;
28class IProCameraUser;
29class IProCameraCallbacks;
30class ICameraServiceListener;
31
32class ICameraService : public IInterface
33{
34public:
35    enum {
36        GET_NUMBER_OF_CAMERAS = IBinder::FIRST_CALL_TRANSACTION,
37        GET_CAMERA_INFO,
38        CONNECT,
39        CONNECT_PRO,
40        ADD_LISTENER,
41        REMOVE_LISTENER,
42    };
43
44    enum {
45        USE_CALLING_UID = -1
46    };
47
48public:
49    DECLARE_META_INTERFACE(CameraService);
50
51    virtual int32_t  getNumberOfCameras() = 0;
52    virtual status_t getCameraInfo(int cameraId,
53                                          struct CameraInfo* cameraInfo) = 0;
54
55    // Returns 'OK' if operation succeeded
56    // - Errors: ALREADY_EXISTS if the listener was already added
57    virtual status_t addListener(const sp<ICameraServiceListener>& listener)
58                                                                            = 0;
59    // Returns 'OK' if operation succeeded
60    // - Errors: BAD_VALUE if specified listener was not in the listener list
61    virtual status_t removeListener(const sp<ICameraServiceListener>& listener)
62                                                                            = 0;
63    /**
64     * clientPackageName and clientUid are used for permissions checking.  if
65     * clientUid == USE_CALLING_UID, then the calling UID is used instead. Only
66     * trusted callers can set a clientUid other than USE_CALLING_UID.
67     */
68    virtual sp<ICamera> connect(const sp<ICameraClient>& cameraClient,
69            int cameraId,
70            const String16& clientPackageName,
71            int clientUid) = 0;
72
73    virtual sp<IProCameraUser> connect(const sp<IProCameraCallbacks>& cameraCb,
74            int cameraId,
75            const String16& clientPackageName,
76            int clientUid) = 0;
77};
78
79// ----------------------------------------------------------------------------
80
81class BnCameraService: public BnInterface<ICameraService>
82{
83public:
84    virtual status_t    onTransact( uint32_t code,
85                                    const Parcel& data,
86                                    Parcel* reply,
87                                    uint32_t flags = 0);
88};
89
90}; // namespace android
91
92#endif
93