1589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian/* 2589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian * Copyright (C) 2010 The Android Open Source Project 3589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian * 4589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian * Licensed under the Apache License, Version 2.0 (the "License"); 5589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian * you may not use this file except in compliance with the License. 6589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian * You may obtain a copy of the License at 7589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian * 8589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian * http://www.apache.org/licenses/LICENSE-2.0 9589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian * 10589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian * Unless required by applicable law or agreed to in writing, software 11589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian * distributed under the License is distributed on an "AS IS" BASIS, 12589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian * See the License for the specific language governing permissions and 14589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian * limitations under the License. 15589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian */ 16589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian 17589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian#ifndef ANDROID_SENSOR_EVENT_QUEUE_H 18589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian#define ANDROID_SENSOR_EVENT_QUEUE_H 19589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian 20589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian#include <stdint.h> 21589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian#include <sys/types.h> 22589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian 23589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian#include <utils/Errors.h> 24589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian#include <utils/RefBase.h> 25589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian#include <utils/Timers.h> 26589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian 275cae0d0699a169e468fff3e21165f35db12f2cdeMathias Agopian#include <gui/BitTube.h> 28589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian 29589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian// ---------------------------------------------------------------------------- 308493b79e1cff92450076ca7450c4bf4e434a6816Aravind Akella#define WAKE_UP_SENSOR_EVENT_NEEDS_ACK (1U << 31) 31589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopianstruct ALooper; 32589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopianstruct ASensorEvent; 33589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian 34589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian// Concrete types for the NDK 35589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopianstruct ASensorEventQueue { 36589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian ALooper* looper; 37589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian}; 38589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian 39589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian// ---------------------------------------------------------------------------- 40589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopiannamespace android { 41589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian// ---------------------------------------------------------------------------- 42589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian 43589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopianclass ISensorEventConnection; 44589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopianclass Sensor; 4559abe7e0909bf4b7bf7b9601e1e40a05f6d4fd8aJeff Brownclass Looper; 46589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian 47589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian// ---------------------------------------------------------------------------- 48589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian 49589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopianclass SensorEventQueue : public ASensorEventQueue, public RefBase 50589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian{ 51589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopianpublic: 5290ed3e8d7883d9c80fb8bf11b1c593bd8b2b39d0Mathias Agopian 5390ed3e8d7883d9c80fb8bf11b1c593bd8b2b39d0Mathias Agopian enum { MAX_RECEIVE_BUFFER_EVENT_COUNT = 256 }; 5490ed3e8d7883d9c80fb8bf11b1c593bd8b2b39d0Mathias Agopian 55589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian SensorEventQueue(const sp<ISensorEventConnection>& connection); 56589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian virtual ~SensorEventQueue(); 57589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian virtual void onFirstRef(); 58589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian 59589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian int getFd() const; 607b5be95cb3903087742f1079fe89cddd8abe3696Mathias Agopian 617b5be95cb3903087742f1079fe89cddd8abe3696Mathias Agopian static ssize_t write(const sp<BitTube>& tube, 627b5be95cb3903087742f1079fe89cddd8abe3696Mathias Agopian ASensorEvent const* events, size_t numEvents); 637b5be95cb3903087742f1079fe89cddd8abe3696Mathias Agopian 64589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian ssize_t read(ASensorEvent* events, size_t numEvents); 65589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian 66a7352c9f4a6e642c29782b19db5bc0bd98feddc8Mathias Agopian status_t waitForEvent() const; 67a7352c9f4a6e642c29782b19db5bc0bd98feddc8Mathias Agopian status_t wake() const; 68a7352c9f4a6e642c29782b19db5bc0bd98feddc8Mathias Agopian 69589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian status_t enableSensor(Sensor const* sensor) const; 70589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian status_t disableSensor(Sensor const* sensor) const; 71589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian status_t setEventRate(Sensor const* sensor, nsecs_t ns) const; 72589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian 73e3c8234765050023b8a588607f819e8cc41a6363Mathias Agopian // these are here only to support SensorManager.java 74724d91d778e71c8186399f4955de14b54812b3edAravind Akella status_t enableSensor(int32_t handle, int32_t samplingPeriodUs, int maxBatchReportLatencyUs, 75724d91d778e71c8186399f4955de14b54812b3edAravind Akella int reservedFlags) const; 76e3c8234765050023b8a588607f819e8cc41a6363Mathias Agopian status_t disableSensor(int32_t handle) const; 77701166d9f60a6e1149ff568aec0e03f3f3925292Aravind Akella status_t flush() const; 789a844cf78f09953145200b4074d47589257a408cAravind Akella // Send an ack for every wake_up sensor event that is set to WAKE_UP_SENSOR_EVENT_NEEDS_ACK. 799a844cf78f09953145200b4074d47589257a408cAravind Akella void sendAck(const ASensorEvent* events, int count); 80589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopianprivate: 8159abe7e0909bf4b7bf7b9601e1e40a05f6d4fd8aJeff Brown sp<Looper> getLooper() const; 82589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian sp<ISensorEventConnection> mSensorEventConnection; 835cae0d0699a169e468fff3e21165f35db12f2cdeMathias Agopian sp<BitTube> mSensorChannel; 84a7352c9f4a6e642c29782b19db5bc0bd98feddc8Mathias Agopian mutable Mutex mLock; 8559abe7e0909bf4b7bf7b9601e1e40a05f6d4fd8aJeff Brown mutable sp<Looper> mLooper; 8690ed3e8d7883d9c80fb8bf11b1c593bd8b2b39d0Mathias Agopian ASensorEvent* mRecBuffer; 8790ed3e8d7883d9c80fb8bf11b1c593bd8b2b39d0Mathias Agopian size_t mAvailable; 8890ed3e8d7883d9c80fb8bf11b1c593bd8b2b39d0Mathias Agopian size_t mConsumed; 898a96955c8e14db40b16164236830fc9506a00872Aravind Akella uint32_t mNumAcksToSend; 90589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian}; 91589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian 92589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian// ---------------------------------------------------------------------------- 93589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian}; // namespace android 94589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian 95589ce85ee4174829cfedce91b6b2509d2a4002ebMathias Agopian#endif // ANDROID_SENSOR_EVENT_QUEUE_H 96