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/*
* Copyright (C) 2010 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 <sensor/ISensorEventConnection.h>
#include <stdint.h>
#include <sys/types.h>
#include <utils/Errors.h>
#include <utils/RefBase.h>
#include <utils/Timers.h>
#include <binder/Parcel.h>
#include <binder/IInterface.h>
#include <sensor/BitTube.h>
namespace android {
// ----------------------------------------------------------------------------
enum {
GET_SENSOR_CHANNEL = IBinder::FIRST_CALL_TRANSACTION,
ENABLE_DISABLE,
SET_EVENT_RATE,
FLUSH_SENSOR,
CONFIGURE_CHANNEL,
DESTROY,
};
class BpSensorEventConnection : public BpInterface<ISensorEventConnection>
{
public:
explicit BpSensorEventConnection(const sp<IBinder>& impl)
: BpInterface<ISensorEventConnection>(impl)
{
}
virtual ~BpSensorEventConnection();
virtual sp<BitTube> getSensorChannel() const
{
Parcel data, reply;
data.writeInterfaceToken(ISensorEventConnection::getInterfaceDescriptor());
remote()->transact(GET_SENSOR_CHANNEL, data, &reply);
return new BitTube(reply);
}
virtual status_t enableDisable(int handle, bool enabled, nsecs_t samplingPeriodNs,
nsecs_t maxBatchReportLatencyNs, int reservedFlags)
{
Parcel data, reply;
data.writeInterfaceToken(ISensorEventConnection::getInterfaceDescriptor());
data.writeInt32(handle);
data.writeInt32(enabled);
data.writeInt64(samplingPeriodNs);
data.writeInt64(maxBatchReportLatencyNs);
data.writeInt32(reservedFlags);
remote()->transact(ENABLE_DISABLE, data, &reply);
return reply.readInt32();
}
virtual status_t setEventRate(int handle, nsecs_t ns)
{
Parcel data, reply;
data.writeInterfaceToken(ISensorEventConnection::getInterfaceDescriptor());
data.writeInt32(handle);
data.writeInt64(ns);
remote()->transact(SET_EVENT_RATE, data, &reply);
return reply.readInt32();
}
virtual status_t flush() {
Parcel data, reply;
data.writeInterfaceToken(ISensorEventConnection::getInterfaceDescriptor());
remote()->transact(FLUSH_SENSOR, data, &reply);
return reply.readInt32();
}
virtual int32_t configureChannel(int32_t handle, int32_t rateLevel) {
Parcel data, reply;
data.writeInterfaceToken(ISensorEventConnection::getInterfaceDescriptor());
data.writeInt32(handle);
data.writeInt32(rateLevel);
remote()->transact(CONFIGURE_CHANNEL, data, &reply);
return reply.readInt32();
}
virtual void onLastStrongRef(const void* id) {
destroy();
BpInterface<ISensorEventConnection>::onLastStrongRef(id);
}
protected:
virtual void destroy() {
Parcel data, reply;
remote()->transact(DESTROY, data, &reply);
}
};
// Out-of-line virtual method definition to trigger vtable emission in this
// translation unit (see clang warning -Wweak-vtables)
BpSensorEventConnection::~BpSensorEventConnection() { }
IMPLEMENT_META_INTERFACE(SensorEventConnection, "android.gui.SensorEventConnection");
// ----------------------------------------------------------------------------
status_t BnSensorEventConnection::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
switch(code) {
case GET_SENSOR_CHANNEL: {
CHECK_INTERFACE(ISensorEventConnection, data, reply);
sp<BitTube> channel(getSensorChannel());
channel->writeToParcel(reply);
return NO_ERROR;
}
case ENABLE_DISABLE: {
CHECK_INTERFACE(ISensorEventConnection, data, reply);
int handle = data.readInt32();
int enabled = data.readInt32();
nsecs_t samplingPeriodNs = data.readInt64();
nsecs_t maxBatchReportLatencyNs = data.readInt64();
int reservedFlags = data.readInt32();
status_t result = enableDisable(handle, enabled, samplingPeriodNs,
maxBatchReportLatencyNs, reservedFlags);
reply->writeInt32(result);
return NO_ERROR;
}
case SET_EVENT_RATE: {
CHECK_INTERFACE(ISensorEventConnection, data, reply);
int handle = data.readInt32();
nsecs_t ns = data.readInt64();
status_t result = setEventRate(handle, ns);
reply->writeInt32(result);
return NO_ERROR;
}
case FLUSH_SENSOR: {
CHECK_INTERFACE(ISensorEventConnection, data, reply);
status_t result = flush();
reply->writeInt32(result);
return NO_ERROR;
}
case CONFIGURE_CHANNEL: {
CHECK_INTERFACE(ISensorEventConnection, data, reply);
int handle = data.readInt32();
int rateLevel = data.readInt32();
status_t result = configureChannel(handle, rateLevel);
reply->writeInt32(result);
return NO_ERROR;
}
case DESTROY: {
destroy();
return NO_ERROR;
}
}
return BBinder::onTransact(code, data, reply, flags);
}
// ----------------------------------------------------------------------------
}; // namespace android
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