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aosp12/frameworks/native/libs/sensor/ISensorServer.cpp

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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/ISensorServer.h>
#include <stdint.h>
#include <sys/types.h>
#include <cutils/native_handle.h>
#include <utils/Errors.h>
#include <utils/RefBase.h>
#include <utils/Vector.h>
#include <utils/Timers.h>
#include <binder/Parcel.h>
#include <binder/IInterface.h>
#include <binder/IResultReceiver.h>
#include <sensor/Sensor.h>
#include <sensor/ISensorEventConnection.h>
namespace android {
// ----------------------------------------------------------------------------
enum {
GET_SENSOR_LIST = IBinder::FIRST_CALL_TRANSACTION,
CREATE_SENSOR_EVENT_CONNECTION,
ENABLE_DATA_INJECTION,
GET_DYNAMIC_SENSOR_LIST,
CREATE_SENSOR_DIRECT_CONNECTION,
SET_OPERATION_PARAMETER,
};
class BpSensorServer : public BpInterface<ISensorServer>
{
public:
explicit BpSensorServer(const sp<IBinder>& impl)
: BpInterface<ISensorServer>(impl)
{
}
virtual ~BpSensorServer();
virtual Vector<Sensor> getSensorList(const String16& opPackageName)
{
Parcel data, reply;
data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
data.writeString16(opPackageName);
remote()->transact(GET_SENSOR_LIST, data, &reply);
Sensor s;
Vector<Sensor> v;
uint32_t n = reply.readUint32();
v.setCapacity(n);
while (n) {
n--;
reply.read(s);
v.add(s);
}
return v;
}
virtual Vector<Sensor> getDynamicSensorList(const String16& opPackageName)
{
Parcel data, reply;
data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
data.writeString16(opPackageName);
remote()->transact(GET_DYNAMIC_SENSOR_LIST, data, &reply);
Sensor s;
Vector<Sensor> v;
uint32_t n = reply.readUint32();
v.setCapacity(n);
while (n) {
n--;
reply.read(s);
v.add(s);
}
return v;
}
virtual sp<ISensorEventConnection> createSensorEventConnection(const String8& packageName,
int mode, const String16& opPackageName, const String16& attributionTag)
{
Parcel data, reply;
data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
data.writeString8(packageName);
data.writeInt32(mode);
data.writeString16(opPackageName);
data.writeString16(attributionTag);
remote()->transact(CREATE_SENSOR_EVENT_CONNECTION, data, &reply);
return interface_cast<ISensorEventConnection>(reply.readStrongBinder());
}
virtual int isDataInjectionEnabled() {
Parcel data, reply;
data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
remote()->transact(ENABLE_DATA_INJECTION, data, &reply);
return reply.readInt32();
}
virtual sp<ISensorEventConnection> createSensorDirectConnection(const String16& opPackageName,
uint32_t size, int32_t type, int32_t format, const native_handle_t *resource) {
Parcel data, reply;
data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
data.writeString16(opPackageName);
data.writeUint32(size);
data.writeInt32(type);
data.writeInt32(format);
data.writeNativeHandle(resource);
remote()->transact(CREATE_SENSOR_DIRECT_CONNECTION, data, &reply);
return interface_cast<ISensorEventConnection>(reply.readStrongBinder());
}
virtual int setOperationParameter(int32_t handle, int32_t type,
const Vector<float> &floats,
const Vector<int32_t> &ints) {
Parcel data, reply;
data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
data.writeInt32(handle);
data.writeInt32(type);
data.writeUint32(static_cast<uint32_t>(floats.size()));
for (auto i : floats) {
data.writeFloat(i);
}
data.writeUint32(static_cast<uint32_t>(ints.size()));
for (auto i : ints) {
data.writeInt32(i);
}
remote()->transact(SET_OPERATION_PARAMETER, data, &reply);
return reply.readInt32();
}
};
// Out-of-line virtual method definition to trigger vtable emission in this
// translation unit (see clang warning -Wweak-vtables)
BpSensorServer::~BpSensorServer() {}
IMPLEMENT_META_INTERFACE(SensorServer, "android.gui.SensorServer");
// ----------------------------------------------------------------------
status_t BnSensorServer::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags)
{
switch(code) {
case GET_SENSOR_LIST: {
CHECK_INTERFACE(ISensorServer, data, reply);
const String16& opPackageName = data.readString16();
Vector<Sensor> v(getSensorList(opPackageName));
size_t n = v.size();
reply->writeUint32(static_cast<uint32_t>(n));
for (size_t i = 0; i < n; i++) {
reply->write(v[i]);
}
return NO_ERROR;
}
case CREATE_SENSOR_EVENT_CONNECTION: {
CHECK_INTERFACE(ISensorServer, data, reply);
String8 packageName = data.readString8();
int32_t mode = data.readInt32();
const String16& opPackageName = data.readString16();
const String16& attributionTag = data.readString16();
sp<ISensorEventConnection> connection(createSensorEventConnection(packageName, mode,
opPackageName, attributionTag));
reply->writeStrongBinder(IInterface::asBinder(connection));
return NO_ERROR;
}
case ENABLE_DATA_INJECTION: {
CHECK_INTERFACE(ISensorServer, data, reply);
int32_t ret = isDataInjectionEnabled();
reply->writeInt32(static_cast<int32_t>(ret));
return NO_ERROR;
}
case GET_DYNAMIC_SENSOR_LIST: {
CHECK_INTERFACE(ISensorServer, data, reply);
const String16& opPackageName = data.readString16();
Vector<Sensor> v(getDynamicSensorList(opPackageName));
size_t n = v.size();
reply->writeUint32(static_cast<uint32_t>(n));
for (size_t i = 0; i < n; i++) {
reply->write(v[i]);
}
return NO_ERROR;
}
case CREATE_SENSOR_DIRECT_CONNECTION: {
CHECK_INTERFACE(ISensorServer, data, reply);
const String16& opPackageName = data.readString16();
uint32_t size = data.readUint32();
int32_t type = data.readInt32();
int32_t format = data.readInt32();
native_handle_t *resource = data.readNativeHandle();
// Avoid a crash in native_handle_close if resource is nullptr
if (resource == nullptr) {
return BAD_VALUE;
}
sp<ISensorEventConnection> ch =
createSensorDirectConnection(opPackageName, size, type, format, resource);
native_handle_close(resource);
native_handle_delete(resource);
reply->writeStrongBinder(IInterface::asBinder(ch));
return NO_ERROR;
}
case SET_OPERATION_PARAMETER: {
CHECK_INTERFACE(ISensorServer, data, reply);
int32_t handle;
int32_t type;
Vector<float> floats;
Vector<int32_t> ints;
uint32_t count;
handle = data.readInt32();
type = data.readInt32();
count = data.readUint32();
if (count > (data.dataAvail() / sizeof(float))) {
return BAD_VALUE;
}
floats.resize(count);
for (auto &i : floats) {
i = data.readFloat();
}
count = data.readUint32();
if (count > (data.dataAvail() / sizeof(int32_t))) {
return BAD_VALUE;
}
ints.resize(count);
for (auto &i : ints) {
i = data.readInt32();
}
int32_t ret = setOperationParameter(handle, type, floats, ints);
reply->writeInt32(ret);
return NO_ERROR;
}
case SHELL_COMMAND_TRANSACTION: {
int in = data.readFileDescriptor();
int out = data.readFileDescriptor();
int err = data.readFileDescriptor();
int argc = data.readInt32();
Vector<String16> args;
for (int i = 0; i < argc && data.dataAvail() > 0; i++) {
args.add(data.readString16());
}
sp<IBinder> unusedCallback;
sp<IResultReceiver> resultReceiver;
status_t status;
if ((status = data.readNullableStrongBinder(&unusedCallback)) != NO_ERROR) {
return status;
}
if ((status = data.readNullableStrongBinder(&resultReceiver)) != NO_ERROR) {
return status;
}
status = shellCommand(in, out, err, args);
if (resultReceiver != nullptr) {
resultReceiver->send(status);
}
return NO_ERROR;
}
}
return BBinder::onTransact(code, data, reply, flags);
}
// ----------------------------------------------------------------------------
}; // namespace android
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