1 /* 2 ** 3 ** Copyright 2013, The Android Open Source Project 4 ** 5 ** Licensed under the Apache License, Version 2.0 (the "License"); 6 ** you may not use this file except in compliance with the License. 7 ** You may obtain a copy of the License at 8 ** 9 ** http://www.apache.org/licenses/LICENSE-2.0 10 ** 11 ** Unless required by applicable law or agreed to in writing, software 12 ** distributed under the License is distributed on an "AS IS" BASIS, 13 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 ** See the License for the specific language governing permissions and 15 ** limitations under the License. 16 */ 17 18 //#define LOG_NDEBUG 0 19 #define LOG_TAG "IProCameraCallbacks" 20 #include <utils/Log.h> 21 #include <stdint.h> 22 #include <sys/types.h> 23 24 #include <binder/Parcel.h> 25 #include <gui/IGraphicBufferProducer.h> 26 #include <gui/Surface.h> 27 #include <utils/Mutex.h> 28 29 #include <camera/IProCameraCallbacks.h> 30 31 #include "camera/CameraMetadata.h" 32 33 namespace android { 34 35 enum { 36 NOTIFY_CALLBACK = IBinder::FIRST_CALL_TRANSACTION, 37 LOCK_STATUS_CHANGED, 38 RESULT_RECEIVED, 39 }; 40 41 class BpProCameraCallbacks: public BpInterface<IProCameraCallbacks> 42 { 43 public: 44 BpProCameraCallbacks(const sp<IBinder>& impl) 45 : BpInterface<IProCameraCallbacks>(impl) 46 { 47 } 48 49 // generic callback from camera service to app 50 void notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2) 51 { 52 ALOGV("notifyCallback"); 53 Parcel data, reply; 54 data.writeInterfaceToken(IProCameraCallbacks::getInterfaceDescriptor()); 55 data.writeInt32(msgType); 56 data.writeInt32(ext1); 57 data.writeInt32(ext2); 58 remote()->transact(NOTIFY_CALLBACK, data, &reply, IBinder::FLAG_ONEWAY); 59 } 60 61 void onLockStatusChanged(LockStatus newLockStatus) { 62 ALOGV("onLockStatusChanged"); 63 Parcel data, reply; 64 data.writeInterfaceToken(IProCameraCallbacks::getInterfaceDescriptor()); 65 data.writeInt32(newLockStatus); 66 remote()->transact(LOCK_STATUS_CHANGED, data, &reply, 67 IBinder::FLAG_ONEWAY); 68 } 69 70 void onResultReceived(int32_t requestId, camera_metadata* result) { 71 ALOGV("onResultReceived"); 72 Parcel data, reply; 73 data.writeInterfaceToken(IProCameraCallbacks::getInterfaceDescriptor()); 74 data.writeInt32(requestId); 75 CameraMetadata::writeToParcel(data, result); 76 remote()->transact(RESULT_RECEIVED, data, &reply, IBinder::FLAG_ONEWAY); 77 } 78 }; 79 80 IMPLEMENT_META_INTERFACE(ProCameraCallbacks, 81 "android.hardware.IProCameraCallbacks"); 82 83 // ---------------------------------------------------------------------- 84 85 status_t BnProCameraCallbacks::onTransact( 86 uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) 87 { 88 ALOGV("onTransact - code = %d", code); 89 switch(code) { 90 case NOTIFY_CALLBACK: { 91 ALOGV("NOTIFY_CALLBACK"); 92 CHECK_INTERFACE(IProCameraCallbacks, data, reply); 93 int32_t msgType = data.readInt32(); 94 int32_t ext1 = data.readInt32(); 95 int32_t ext2 = data.readInt32(); 96 notifyCallback(msgType, ext1, ext2); 97 return NO_ERROR; 98 } break; 99 case LOCK_STATUS_CHANGED: { 100 ALOGV("LOCK_STATUS_CHANGED"); 101 CHECK_INTERFACE(IProCameraCallbacks, data, reply); 102 LockStatus newLockStatus 103 = static_cast<LockStatus>(data.readInt32()); 104 onLockStatusChanged(newLockStatus); 105 return NO_ERROR; 106 } break; 107 case RESULT_RECEIVED: { 108 ALOGV("RESULT_RECEIVED"); 109 CHECK_INTERFACE(IProCameraCallbacks, data, reply); 110 int32_t requestId = data.readInt32(); 111 camera_metadata_t *result = NULL; 112 CameraMetadata::readFromParcel(data, &result); 113 onResultReceived(requestId, result); 114 return NO_ERROR; 115 break; 116 } 117 default: 118 return BBinder::onTransact(code, data, reply, flags); 119 } 120 } 121 122 // ---------------------------------------------------------------------------- 123 124 }; // namespace android 125 126
