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/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