first step at implementing the native sensor support
in this commit:
- implemented the C stub
- implemented the binder interfaces involved
- implemented most of the C++ client side
missing:
- SensorManager cannot connect to the SensorServer yet
(because there is no SensorServer yet)
Change-Id: I75010cbeef31c98d6fa62fd5d388dcef87c2636b
diff --git a/include/gui/ISensorEventConnection.h b/include/gui/ISensorEventConnection.h
new file mode 100644
index 0000000..ed4e4cc
--- /dev/null
+++ b/include/gui/ISensorEventConnection.h
@@ -0,0 +1,57 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_GUI_ISENSOR_EVENT_CONNECTION_H
+#define ANDROID_GUI_ISENSOR_EVENT_CONNECTION_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+#include <binder/IInterface.h>
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+class SensorChannel;
+
+class ISensorEventConnection : public IInterface
+{
+public:
+ DECLARE_META_INTERFACE(SensorEventConnection);
+
+ virtual sp<SensorChannel> getSensorChannel() const = 0;
+ virtual status_t enableDisable(int handle, bool enabled) = 0;
+ virtual status_t setEventRate(int handle, nsecs_t ns) = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnSensorEventConnection : public BnInterface<ISensorEventConnection>
+{
+public:
+ virtual status_t onTransact( uint32_t code,
+ const Parcel& data,
+ Parcel* reply,
+ uint32_t flags = 0);
+};
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_GUI_ISENSOR_EVENT_CONNECTION_H
diff --git a/include/gui/ISensorServer.h b/include/gui/ISensorServer.h
new file mode 100644
index 0000000..3e05076
--- /dev/null
+++ b/include/gui/ISensorServer.h
@@ -0,0 +1,57 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_GUI_ISENSORSERVER_H
+#define ANDROID_GUI_ISENSORSERVER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+#include <binder/IInterface.h>
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+class Sensor;
+class ISensorEventConnection;
+
+class ISensorServer : public IInterface
+{
+public:
+ DECLARE_META_INTERFACE(SensorServer);
+
+ virtual Vector<Sensor> getSensorList()= 0;
+ virtual sp<ISensorEventConnection> createSensorEventConnection() = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnSensorServer : public BnInterface<ISensorServer>
+{
+public:
+ virtual status_t onTransact( uint32_t code,
+ const Parcel& data,
+ Parcel* reply,
+ uint32_t flags = 0);
+};
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_GUI_ISENSORSERVER_H
diff --git a/include/gui/Sensor.h b/include/gui/Sensor.h
new file mode 100644
index 0000000..86a16f1
--- /dev/null
+++ b/include/gui/Sensor.h
@@ -0,0 +1,88 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_GUI_SENSOR_H
+#define ANDROID_GUI_SENSOR_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/String8.h>
+#include <utils/Flattenable.h>
+
+#include <hardware/sensors.h>
+
+#include <android/sensor.h>
+
+// ----------------------------------------------------------------------------
+// Concrete types for the NDK
+struct ASensor { };
+
+// ----------------------------------------------------------------------------
+namespace android {
+// ----------------------------------------------------------------------------
+
+class Parcel;
+
+// ----------------------------------------------------------------------------
+
+class Sensor : public ASensor, public Flattenable
+{
+public:
+ enum {
+ TYPE_ACCELEROMETER = ASENSOR_TYPE_ACCELEROMETER,
+ TYPE_MAGNETIC_FIELD = ASENSOR_TYPE_MAGNETIC_FIELD,
+ TYPE_GYROSCOPE = ASENSOR_TYPE_GYROSCOPE,
+ TYPE_LIGHT = ASENSOR_TYPE_LIGHT,
+ TYPE_PROXIMITY = ASENSOR_TYPE_PROXIMITY
+ };
+
+ Sensor();
+ virtual ~Sensor();
+
+ const String8& getName() const;
+ const String8& getVendor() const;
+ int32_t getHandle() const;
+ int32_t getType() const;
+ float getMinValue() const;
+ float getMaxValue() const;
+ float getResolution() const;
+ float getPowerUsage() const;
+
+ // Flattenable interface
+ virtual size_t getFlattenedSize() const;
+ virtual size_t getFdCount() const;
+ virtual status_t flatten(void* buffer, size_t size,
+ int fds[], size_t count) const;
+ virtual status_t unflatten(void const* buffer, size_t size,
+ int fds[], size_t count);
+
+private:
+ String8 mName;
+ String8 mVendor;
+ int32_t mHandle;
+ int32_t mType;
+ float mMinValue;
+ float mMaxValue;
+ float mResolution;
+ float mPower;
+};
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_GUI_SENSOR_H
diff --git a/include/gui/SensorChannel.h b/include/gui/SensorChannel.h
new file mode 100644
index 0000000..bb54618
--- /dev/null
+++ b/include/gui/SensorChannel.h
@@ -0,0 +1,53 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_GUI_SENSOR_CHANNEL_H
+#define ANDROID_GUI_SENSOR_CHANNEL_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+
+namespace android {
+// ----------------------------------------------------------------------------
+class Parcel;
+
+class SensorChannel : public RefBase
+{
+public:
+
+ SensorChannel();
+ SensorChannel(const Parcel& data);
+ virtual ~SensorChannel();
+
+ int getFd() const;
+ ssize_t write(void const* vaddr, size_t size);
+ ssize_t read(void* vaddr, size_t size);
+
+ status_t writeToParcel(Parcel* reply) const;
+
+private:
+ int mSendFd;
+ mutable int mReceiveFd;
+};
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_GUI_SENSOR_CHANNEL_H
diff --git a/include/gui/SensorEventQueue.h b/include/gui/SensorEventQueue.h
new file mode 100644
index 0000000..d8d8128
--- /dev/null
+++ b/include/gui/SensorEventQueue.h
@@ -0,0 +1,71 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_SENSOR_EVENT_QUEUE_H
+#define ANDROID_SENSOR_EVENT_QUEUE_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <utils/Timers.h>
+
+#include <gui/SensorChannel.h>
+
+// ----------------------------------------------------------------------------
+
+struct ALooper;
+struct ASensorEvent;
+
+// Concrete types for the NDK
+struct ASensorEventQueue {
+ ALooper* looper;
+};
+
+// ----------------------------------------------------------------------------
+namespace android {
+// ----------------------------------------------------------------------------
+
+class ISensorEventConnection;
+class Sensor;
+
+// ----------------------------------------------------------------------------
+
+class SensorEventQueue : public ASensorEventQueue, public RefBase
+{
+public:
+ SensorEventQueue(const sp<ISensorEventConnection>& connection);
+ virtual ~SensorEventQueue();
+ virtual void onFirstRef();
+
+ int getFd() const;
+ ssize_t write(ASensorEvent const* events, size_t numEvents);
+ ssize_t read(ASensorEvent* events, size_t numEvents);
+
+ status_t enableSensor(Sensor const* sensor) const;
+ status_t disableSensor(Sensor const* sensor) const;
+ status_t setEventRate(Sensor const* sensor, nsecs_t ns) const;
+
+private:
+ sp<ISensorEventConnection> mSensorEventConnection;
+ sp<SensorChannel> mSensorChannel;
+};
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_SENSOR_EVENT_QUEUE_H
diff --git a/include/gui/SensorManager.h b/include/gui/SensorManager.h
new file mode 100644
index 0000000..0d65334
--- /dev/null
+++ b/include/gui/SensorManager.h
@@ -0,0 +1,63 @@
+/*
+ * 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.
+ */
+
+#ifndef ANDROID_GUI_SENSOR_MANAGER_H
+#define ANDROID_GUI_SENSOR_MANAGER_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <utils/Singleton.h>
+#include <utils/Vector.h>
+
+#include <gui/SensorEventQueue.h>
+
+// ----------------------------------------------------------------------------
+// Concrete types for the NDK
+struct ASensorManager { };
+
+// ----------------------------------------------------------------------------
+namespace android {
+// ----------------------------------------------------------------------------
+
+class ISensorServer;
+class Sensor;
+class SensorEventQueue;
+
+// ----------------------------------------------------------------------------
+
+class SensorManager : public ASensorManager, public Singleton<SensorManager>
+{
+public:
+ SensorManager();
+ ~SensorManager();
+
+ ssize_t getSensorList(Sensor**) const;
+ Sensor* getDefaultSensor(int type);
+ sp<SensorEventQueue> createEventQueue();
+
+private:
+ sp<ISensorServer> mSensorServer;
+ Sensor* mSensorList;
+ Vector<Sensor> mSensors;
+};
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_GUI_SENSOR_MANAGER_H
diff --git a/libs/gui/Android.mk b/libs/gui/Android.mk
new file mode 100644
index 0000000..249558a
--- /dev/null
+++ b/libs/gui/Android.mk
@@ -0,0 +1,25 @@
+LOCAL_PATH:= $(call my-dir)
+include $(CLEAR_VARS)
+
+LOCAL_SRC_FILES:= \
+ ISensorEventConnection.cpp \
+ ISensorServer.cpp \
+ Sensor.cpp \
+ SensorChannel.cpp \
+ SensorEventQueue.cpp \
+ SensorManager.cpp
+
+LOCAL_SHARED_LIBRARIES := \
+ libcutils \
+ libutils \
+ libbinder \
+ libhardware \
+ libhardware_legacy
+
+LOCAL_MODULE:= libgui
+
+ifeq ($(TARGET_SIMULATOR),true)
+ LOCAL_LDLIBS += -lpthread
+endif
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/libs/gui/ISensorEventConnection.cpp b/libs/gui/ISensorEventConnection.cpp
new file mode 100644
index 0000000..3e9d456
--- /dev/null
+++ b/libs/gui/ISensorEventConnection.cpp
@@ -0,0 +1,108 @@
+/*
+ * 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 <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 <gui/ISensorEventConnection.h>
+#include <gui/SensorChannel.h>
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+enum {
+ GET_SENSOR_CHANNEL = IBinder::FIRST_CALL_TRANSACTION,
+ ENABLE_DISABLE,
+ SET_EVENT_RATE
+};
+
+class BpSensorEventConnection : public BpInterface<ISensorEventConnection>
+{
+public:
+ BpSensorEventConnection(const sp<IBinder>& impl)
+ : BpInterface<ISensorEventConnection>(impl)
+ {
+ }
+
+ virtual sp<SensorChannel> getSensorChannel() const
+ {
+ Parcel data, reply;
+ remote()->transact(GET_SENSOR_CHANNEL, data, &reply);
+ return new SensorChannel(reply);
+ }
+
+ virtual status_t enableDisable(int handle, bool enabled)
+ {
+ Parcel data, reply;
+ data.writeInt32(handle);
+ data.writeInt32(enabled);
+ remote()->transact(ENABLE_DISABLE, data, &reply);
+ return reply.readInt32();
+ }
+
+ virtual status_t setEventRate(int handle, nsecs_t ns)
+ {
+ Parcel data, reply;
+ data.writeInt32(handle);
+ data.writeInt64(ns);
+ remote()->transact(SET_EVENT_RATE, data, &reply);
+ return reply.readInt32();
+ }
+};
+
+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<SensorChannel> channel(getSensorChannel());
+ channel->writeToParcel(reply);
+ return NO_ERROR;
+ } break;
+ case ENABLE_DISABLE: {
+ CHECK_INTERFACE(ISensorEventConnection, data, reply);
+ int handle = data.readInt32();
+ int enabled = data.readInt32();
+ status_t result = enableDisable(handle, enabled);
+ reply->writeInt32(result);
+ return NO_ERROR;
+ } break;
+ case SET_EVENT_RATE: {
+ CHECK_INTERFACE(ISensorEventConnection, data, reply);
+ int handle = data.readInt32();
+ int ns = data.readInt64();
+ status_t result = setEventRate(handle, ns);
+ reply->writeInt32(result);
+ return NO_ERROR;
+ } break;
+ }
+ return BBinder::onTransact(code, data, reply, flags);
+}
+
+// ----------------------------------------------------------------------------
+}; // namespace android
diff --git a/libs/gui/ISensorServer.cpp b/libs/gui/ISensorServer.cpp
new file mode 100644
index 0000000..c6177bc
--- /dev/null
+++ b/libs/gui/ISensorServer.cpp
@@ -0,0 +1,100 @@
+/*
+ * 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 <stdint.h>
+#include <sys/types.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 <gui/Sensor.h>
+#include <gui/ISensorServer.h>
+#include <gui/ISensorEventConnection.h>
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+enum {
+ GET_SENSOR_LIST = IBinder::FIRST_CALL_TRANSACTION,
+ CREATE_SENSOR_EVENT_CONNECTION,
+};
+
+class BpSensorServer : public BpInterface<ISensorServer>
+{
+public:
+ BpSensorServer(const sp<IBinder>& impl)
+ : BpInterface<ISensorServer>(impl)
+ {
+ }
+
+ virtual Vector<Sensor> getSensorList()
+ {
+ Parcel data, reply;
+ remote()->transact(GET_SENSOR_LIST, data, &reply);
+ Sensor s;
+ Vector<Sensor> v;
+ int32_t n = reply.readInt32();
+ v.setCapacity(n);
+ while (n--) {
+ reply.read(static_cast<Flattenable&>(s));
+ v.add(s);
+ }
+ return v;
+ }
+
+ virtual sp<ISensorEventConnection> createSensorEventConnection()
+ {
+ Parcel data, reply;
+ remote()->transact(CREATE_SENSOR_EVENT_CONNECTION, data, &reply);
+ return interface_cast<ISensorEventConnection>(reply.readStrongBinder());
+ }
+};
+
+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);
+ Vector<Sensor> v(getSensorList());
+ size_t n = v.size();
+ reply->writeInt32(n);
+ for (size_t i=0 ; i<n ; i++) {
+ reply->write(static_cast<const Flattenable&>(v[i]));
+ }
+ return NO_ERROR;
+ } break;
+ case CREATE_SENSOR_EVENT_CONNECTION: {
+ CHECK_INTERFACE(ISensorServer, data, reply);
+ sp<ISensorEventConnection> connection(createSensorEventConnection());
+ reply->writeStrongBinder(connection->asBinder());
+ return NO_ERROR;
+ } break;
+ }
+ return BBinder::onTransact(code, data, reply, flags);
+}
+
+// ----------------------------------------------------------------------------
+}; // namespace android
diff --git a/libs/gui/Sensor.cpp b/libs/gui/Sensor.cpp
new file mode 100644
index 0000000..1fdd285
--- /dev/null
+++ b/libs/gui/Sensor.cpp
@@ -0,0 +1,165 @@
+/*
+ * 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 <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/String8.h>
+#include <utils/Flattenable.h>
+
+#include <hardware/sensors.h>
+
+#include <gui/Sensor.h>
+
+// ----------------------------------------------------------------------------
+namespace android {
+// ----------------------------------------------------------------------------
+
+Sensor::Sensor()
+ : mHandle(0), mType(0),
+ mMinValue(0), mMaxValue(0), mResolution(0),
+ mPower(0)
+{
+}
+
+Sensor::~Sensor()
+{
+}
+
+const String8& Sensor::getName() const {
+ return mName;
+}
+
+const String8& Sensor::getVendor() const {
+ return mVendor;
+}
+
+int32_t Sensor::getHandle() const {
+ return mHandle;
+}
+
+int32_t Sensor::getType() const {
+ return mType;
+}
+
+float Sensor::getMinValue() const {
+ return mMinValue;
+}
+
+float Sensor::getMaxValue() const {
+ return mMaxValue;
+}
+
+float Sensor::getResolution() const {
+ return mResolution;
+}
+
+float Sensor::getPowerUsage() const {
+ return mPower;
+}
+
+size_t Sensor::getFlattenedSize() const
+{
+ return sizeof(int32_t) + ((mName.length() + 3) & ~3) +
+ sizeof(int32_t) + ((mVendor.length() + 3) & ~3) +
+ sizeof(int32_t) * 2 +
+ sizeof(float) * 3;
+}
+
+size_t Sensor::getFdCount() const
+{
+ return 0;
+}
+
+static inline
+size_t write(void* buffer, size_t offset, const String8& value) {
+ memcpy(static_cast<char*>(buffer) + offset, value.string(), value.length());
+ return (value.length() + 3) & ~3;
+}
+
+static inline
+size_t write(void* buffer, size_t offset, float value) {
+ *reinterpret_cast<float*>(static_cast<char*>(buffer) + offset) = value;
+ return sizeof(float);
+}
+
+static inline
+size_t write(void* buffer, size_t offset, int32_t value) {
+ *reinterpret_cast<int32_t*>(static_cast<char*>(buffer) + offset) = value;
+ return sizeof(int32_t);
+}
+
+status_t Sensor::flatten(void* buffer, size_t size,
+ int fds[], size_t count) const
+{
+ if (size < Sensor::getFlattenedSize())
+ return -ENOMEM;
+
+ size_t offset = 0;
+ offset += write(buffer, offset, int32_t(mName.length()));
+ offset += write(buffer, offset, mName);
+ offset += write(buffer, offset, int32_t(mVendor.length()));
+ offset += write(buffer, offset, mVendor);
+ offset += write(buffer, offset, mHandle);
+ offset += write(buffer, offset, mType);
+ offset += write(buffer, offset, mMinValue);
+ offset += write(buffer, offset, mMaxValue);
+ offset += write(buffer, offset, mResolution);
+ offset += write(buffer, offset, mPower);
+
+ return NO_ERROR;
+}
+
+static inline
+size_t read(void const* buffer, size_t offset, String8* value, int32_t len) {
+ value->setTo(static_cast<char const*>(buffer) + offset, len);
+ return (len + 3) & ~3;
+}
+
+static inline
+size_t read(void const* buffer, size_t offset, float* value) {
+ *value = *reinterpret_cast<float const*>(static_cast<char const*>(buffer) + offset);
+ return sizeof(float);
+}
+
+static inline
+size_t read(void const* buffer, size_t offset, int32_t* value) {
+ *value = *reinterpret_cast<int32_t const*>(static_cast<char const*>(buffer) + offset);
+ return sizeof(int32_t);
+}
+
+status_t Sensor::unflatten(void const* buffer, size_t size,
+ int fds[], size_t count)
+{
+ int32_t len;
+ size_t offset = 0;
+ offset += read(buffer, offset, &len);
+ offset += read(buffer, offset, &mName, len);
+ offset += read(buffer, offset, &len);
+ offset += read(buffer, offset, &mVendor, len);
+ offset += read(buffer, offset, &mHandle);
+ offset += read(buffer, offset, &mType);
+ offset += read(buffer, offset, &mMinValue);
+ offset += read(buffer, offset, &mMaxValue);
+ offset += read(buffer, offset, &mResolution);
+ offset += read(buffer, offset, &mPower);
+
+ return NO_ERROR;
+}
+
+// ----------------------------------------------------------------------------
+}; // namespace android
diff --git a/libs/gui/SensorChannel.cpp b/libs/gui/SensorChannel.cpp
new file mode 100644
index 0000000..147e1c2
--- /dev/null
+++ b/libs/gui/SensorChannel.cpp
@@ -0,0 +1,93 @@
+/*
+ * 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 <stdint.h>
+#include <sys/types.h>
+
+#include <unistd.h>
+#include <fcntl.h>
+
+#include <utils/Errors.h>
+
+#include <binder/Parcel.h>
+
+#include <gui/SensorChannel.h>
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+SensorChannel::SensorChannel()
+ : mSendFd(-1), mReceiveFd(-1)
+{
+ int fds[2];
+ if (pipe(fds) == 0) {
+ mReceiveFd = fds[0];
+ mSendFd = fds[1];
+ fcntl(mReceiveFd, F_SETFL, O_NONBLOCK);
+ fcntl(mSendFd, F_SETFL, O_NONBLOCK);
+ }
+}
+
+SensorChannel::SensorChannel(const Parcel& data)
+ : mSendFd(-1), mReceiveFd(-1)
+{
+ mReceiveFd = dup(data.readFileDescriptor());
+ fcntl(mReceiveFd, F_SETFL, O_NONBLOCK);
+}
+
+SensorChannel::~SensorChannel()
+{
+ if (mSendFd >= 0)
+ close(mSendFd);
+
+ if (mReceiveFd >= 0)
+ close(mReceiveFd);
+}
+
+int SensorChannel::getFd() const
+{
+ return mReceiveFd;
+}
+
+ssize_t SensorChannel::write(void const* vaddr, size_t size)
+{
+ ssize_t len = ::write(mSendFd, vaddr, size);
+ if (len < 0)
+ return -errno;
+ return len;
+}
+
+ssize_t SensorChannel::read(void* vaddr, size_t size)
+{
+ ssize_t len = ::read(mReceiveFd, vaddr, size);
+ if (len < 0)
+ return -errno;
+ return len;
+}
+
+status_t SensorChannel::writeToParcel(Parcel* reply) const
+{
+ if (mReceiveFd < 0)
+ return -EINVAL;
+
+ status_t result = reply->writeDupFileDescriptor(mReceiveFd);
+ close(mReceiveFd);
+ mReceiveFd = -1;
+ return result;
+}
+
+// ----------------------------------------------------------------------------
+}; // namespace android
diff --git a/libs/gui/SensorEventQueue.cpp b/libs/gui/SensorEventQueue.cpp
new file mode 100644
index 0000000..f922ac4
--- /dev/null
+++ b/libs/gui/SensorEventQueue.cpp
@@ -0,0 +1,97 @@
+/*
+ * 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 <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+#include <gui/Sensor.h>
+#include <gui/SensorChannel.h>
+#include <gui/SensorEventQueue.h>
+#include <gui/ISensorEventConnection.h>
+
+#include <android/sensor.h>
+
+// ----------------------------------------------------------------------------
+namespace android {
+// ----------------------------------------------------------------------------
+
+SensorEventQueue::SensorEventQueue(const sp<ISensorEventConnection>& connection)
+ : mSensorEventConnection(connection)
+{
+}
+
+SensorEventQueue::~SensorEventQueue()
+{
+}
+
+void SensorEventQueue::onFirstRef()
+{
+ mSensorChannel = mSensorEventConnection->getSensorChannel();
+}
+
+int SensorEventQueue::getFd() const
+{
+ return mSensorChannel->getFd();
+}
+
+ssize_t SensorEventQueue::write(ASensorEvent const* events, size_t numEvents)
+{
+ ssize_t size = mSensorChannel->write(events, numEvents * sizeof(events[0]));
+ if (size >= 0) {
+ if (size % sizeof(events[0])) {
+ // partial write!!! should never happen.
+ return -EINVAL;
+ }
+ // returns number of events written
+ size /= sizeof(events[0]);
+ }
+ return size;
+}
+
+ssize_t SensorEventQueue::read(ASensorEvent* events, size_t numEvents)
+{
+ ssize_t size = mSensorChannel->read(events, numEvents*sizeof(events[0]));
+ if (size >= 0) {
+ if (size % sizeof(events[0])) {
+ // partial write!!! should never happen.
+ return -EINVAL;
+ }
+ // returns number of events read
+ size /= sizeof(events[0]);
+ }
+ return size;
+}
+
+status_t SensorEventQueue::enableSensor(Sensor const* sensor) const
+{
+ return mSensorEventConnection->enableDisable(sensor->getHandle(), true);
+}
+
+status_t SensorEventQueue::disableSensor(Sensor const* sensor) const
+{
+ return mSensorEventConnection->enableDisable(sensor->getHandle(), false);
+}
+
+status_t SensorEventQueue::setEventRate(Sensor const* sensor, nsecs_t ns) const
+{
+ return mSensorEventConnection->setEventRate(sensor->getHandle(), ns);
+}
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+
diff --git a/libs/gui/SensorManager.cpp b/libs/gui/SensorManager.cpp
new file mode 100644
index 0000000..cd89285
--- /dev/null
+++ b/libs/gui/SensorManager.cpp
@@ -0,0 +1,68 @@
+/*
+ * 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 <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <utils/Singleton.h>
+
+#include <gui/ISensorServer.h>
+#include <gui/ISensorEventConnection.h>
+#include <gui/Sensor.h>
+#include <gui/SensorManager.h>
+#include <gui/SensorEventQueue.h>
+
+// ----------------------------------------------------------------------------
+namespace android {
+// ----------------------------------------------------------------------------
+
+ANDROID_SINGLETON_STATIC_INSTANCE(SensorManager)
+
+SensorManager::SensorManager()
+ : mSensorList(0)
+{
+ mSensors = mSensorServer->getSensorList();
+ // TODO: needs implementation
+}
+
+SensorManager::~SensorManager()
+{
+ // TODO: needs implementation
+}
+
+ssize_t SensorManager::getSensorList(Sensor** list) const
+{
+ *list = mSensorList;
+ return mSensors.size();
+}
+
+Sensor* SensorManager::getDefaultSensor(int type)
+{
+ // TODO: needs implementation
+ return mSensorList;
+}
+
+sp<SensorEventQueue> SensorManager::createEventQueue()
+{
+ sp<SensorEventQueue> result = new SensorEventQueue(
+ mSensorServer->createSensorEventConnection());
+ return result;
+}
+
+// ----------------------------------------------------------------------------
+}; // namespace android
diff --git a/native/android/Android.mk b/native/android/Android.mk
index 509a379..2fe0679 100644
--- a/native/android/Android.mk
+++ b/native/android/Android.mk
@@ -9,13 +9,15 @@
input.cpp \
looper.cpp \
native_activity.cpp \
- native_window.cpp
+ native_window.cpp \
+ sensor.cpp
LOCAL_SHARED_LIBRARIES := \
libcutils \
libutils \
libbinder \
libui \
+ libgui \
libsurfaceflinger_client \
libandroid_runtime
diff --git a/native/android/sensor.cpp b/native/android/sensor.cpp
new file mode 100644
index 0000000..7a3907e
--- /dev/null
+++ b/native/android/sensor.cpp
@@ -0,0 +1,150 @@
+/*
+ * Copyright (C) 2009 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.
+ */
+
+#define LOG_TAG "sensor"
+#include <utils/Log.h>
+
+#include <android/looper.h>
+#include <android/sensor.h>
+
+#include <utils/RefBase.h>
+#include <utils/PollLoop.h>
+#include <utils/Timers.h>
+
+#include <gui/Sensor.h>
+#include <gui/SensorManager.h>
+#include <gui/SensorEventQueue.h>
+
+#include <poll.h>
+
+using android::sp;
+using android::Sensor;
+using android::SensorManager;
+using android::SensorEventQueue;
+using android::String8;
+
+/*****************************************************************************/
+
+ASensorManager* ASensorManager_getInstance()
+{
+ return &SensorManager::getInstance();
+}
+
+int ASensorManager_getSensorList(ASensorManager* manager, ASensor** list)
+{
+ Sensor* l;
+ int c = static_cast<SensorManager*>(manager)->getSensorList(&l);
+ if (list) {
+ *list = l;
+ }
+ return c;
+}
+
+ASensor* ASensorManager_getDefaultSensor(ASensorManager* manager, int type)
+{
+ return static_cast<SensorManager*>(manager)->getDefaultSensor(type);
+}
+
+ASensorEventQueue* ASensorManager_createEventQueue(ASensorManager* manager,
+ ALooper* looper, ALooper_callbackFunc* callback, void* data)
+{
+ sp<SensorEventQueue> queue =
+ static_cast<SensorManager*>(manager)->createEventQueue();
+ if (queue != 0) {
+ ALooper_addFd(looper, queue->getFd(), POLLIN, callback, data);
+ queue->looper = looper;
+ queue->incStrong(manager);
+ }
+ return static_cast<ASensorEventQueue*>(queue.get());
+}
+
+int ASensorManager_destroyEventQueue(ASensorManager* manager,
+ ASensorEventQueue* inQueue)
+{
+ sp<SensorEventQueue> queue = static_cast<SensorEventQueue*>(inQueue);
+ ALooper_removeFd(queue->looper, queue->getFd());
+ queue->decStrong(manager);
+ return 0;
+}
+
+/*****************************************************************************/
+
+int ASensorEventQueue_enableSensor(ASensorEventQueue* queue, ASensor* sensor)
+{
+ return static_cast<SensorEventQueue*>(queue)->enableSensor(
+ static_cast<Sensor*>(sensor));
+}
+
+int ASensorEventQueue_disableSensor(ASensorEventQueue* queue, ASensor* sensor)
+{
+ return static_cast<SensorEventQueue*>(queue)->disableSensor(
+ static_cast<Sensor*>(sensor));
+}
+
+int ASensorEventQueue_setEventRate(ASensorEventQueue* queue, ASensor* sensor,
+ int32_t usec)
+{
+ return static_cast<SensorEventQueue*>(queue)->setEventRate(
+ static_cast<Sensor*>(sensor), us2ns(usec));
+}
+
+int ASensorEventQueue_hasEvents(ASensorEventQueue* queue)
+{
+ struct pollfd pfd;
+ pfd.fd = static_cast<SensorEventQueue*>(queue)->getFd();
+ pfd.events = POLLIN;
+ pfd.revents = 0;
+
+ int nfd = poll(&pfd, 1, 0);
+
+ if (nfd < 0)
+ return -errno;
+
+ if (pfd.revents != POLLIN)
+ return -1;
+
+ return (nfd == 0) ? 0 : 1;
+}
+
+ssize_t ASensorEventQueue_getEvents(ASensorEventQueue* queue,
+ ASensorEvent* events, size_t count)
+{
+ return static_cast<SensorEventQueue*>(queue)->read(events, count);
+}
+
+
+/*****************************************************************************/
+
+const char* ASensor_getName(ASensor* sensor)
+{
+ return static_cast<Sensor*>(sensor)->getName().string();
+}
+
+const char* ASensor_getVendor(ASensor* sensor)
+{
+ return static_cast<Sensor*>(sensor)->getVendor().string();
+}
+
+int ASensor_getType(ASensor* sensor)
+{
+ return static_cast<Sensor*>(sensor)->getType();
+}
+
+float ASensor_getResolution(ASensor* sensor)
+{
+ return static_cast<Sensor*>(sensor)->getResolution();
+}
+