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/*
**
** Copyright 2008, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#include <stdint.h>
#include <sys/types.h>
#include <binder/Parcel.h>
#include <binder/IPCThreadState.h>
#include <binder/IServiceManager.h>
#include <camera/ICameraService.h>
namespace android {
class BpCameraService: public BpInterface<ICameraService>
{
public:
BpCameraService(const sp<IBinder>& impl)
: BpInterface<ICameraService>(impl)
{
}
// get number of cameras available
virtual int32_t getNumberOfCameras()
{
Parcel data, reply;
data.writeInterfaceToken(ICameraService::getInterfaceDescriptor());
remote()->transact(BnCameraService::GET_NUMBER_OF_CAMERAS, data, &reply);
return reply.readInt32();
}
// get information about a camera
virtual status_t getCameraInfo(int cameraId,
struct CameraInfo* cameraInfo) {
Parcel data, reply;
data.writeInterfaceToken(ICameraService::getInterfaceDescriptor());
data.writeInt32(cameraId);
remote()->transact(BnCameraService::GET_CAMERA_INFO, data, &reply);
cameraInfo->facing = reply.readInt32();
cameraInfo->orientation = reply.readInt32();
return reply.readInt32();
}
// connect to camera service
virtual sp<ICamera> connect(const sp<ICameraClient>& cameraClient, int cameraId)
{
Parcel data, reply;
data.writeInterfaceToken(ICameraService::getInterfaceDescriptor());
data.writeStrongBinder(cameraClient->asBinder());
data.writeInt32(cameraId);
remote()->transact(BnCameraService::CONNECT, data, &reply);
return interface_cast<ICamera>(reply.readStrongBinder());
}
};
IMPLEMENT_META_INTERFACE(CameraService, "android.hardware.ICameraService");
// ----------------------------------------------------------------------
status_t BnCameraService::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
switch(code) {
case GET_NUMBER_OF_CAMERAS: {
CHECK_INTERFACE(ICameraService, data, reply);
reply->writeInt32(getNumberOfCameras());
return NO_ERROR;
} break;
case GET_CAMERA_INFO: {
CHECK_INTERFACE(ICameraService, data, reply);
CameraInfo cameraInfo;
memset(&cameraInfo, 0, sizeof(cameraInfo));
status_t result = getCameraInfo(data.readInt32(), &cameraInfo);
reply->writeInt32(cameraInfo.facing);
reply->writeInt32(cameraInfo.orientation);
reply->writeInt32(result);
return NO_ERROR;
} break;
case CONNECT: {
CHECK_INTERFACE(ICameraService, data, reply);
sp<ICameraClient> cameraClient = interface_cast<ICameraClient>(data.readStrongBinder());
sp<ICamera> camera = connect(cameraClient, data.readInt32());
reply->writeStrongBinder(camera->asBinder());
return NO_ERROR;
} break;
default:
return BBinder::onTransact(code, data, reply, flags);
}
}
// ----------------------------------------------------------------------------
}; // namespace android
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