1 /* 2 * Copyright (C) 2010 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #pragma once 18 19 #include <stdint.h> 20 #include <sys/types.h> 21 22 #include <utils/Errors.h> 23 #include <utils/Flattenable.h> 24 #include <utils/String8.h> 25 #include <utils/Timers.h> 26 27 // FIXME: including from android/ breaks layering, as libandroid ultimately depends on libsensors 28 #include <android/sensor.h> 29 30 #include <hardware/sensors.h> 31 32 // ---------------------------------------------------------------------------- 33 // Concrete types for the NDK 34 struct ASensor { }; 35 36 // ---------------------------------------------------------------------------- 37 namespace android { 38 // ---------------------------------------------------------------------------- 39 40 class Parcel; 41 42 // ---------------------------------------------------------------------------- 43 44 class Sensor : public ASensor, public LightFlattenable<Sensor> 45 { 46 public: 47 enum { 48 TYPE_ACCELEROMETER = ASENSOR_TYPE_ACCELEROMETER, 49 TYPE_MAGNETIC_FIELD = ASENSOR_TYPE_MAGNETIC_FIELD, 50 TYPE_GYROSCOPE = ASENSOR_TYPE_GYROSCOPE, 51 TYPE_LIGHT = ASENSOR_TYPE_LIGHT, 52 TYPE_PROXIMITY = ASENSOR_TYPE_PROXIMITY 53 }; 54 55 struct uuid_t{ 56 union { 57 uint8_t b[16]; 58 int64_t i64[2]; 59 }; uuid_tuuid_t60 explicit uuid_t(const uint8_t (&uuid)[16]) { memcpy(b, uuid, sizeof(b));} uuid_tuuid_t61 uuid_t() : b{0} {} 62 }; 63 64 Sensor(const Sensor&) = default; 65 Sensor& operator=(const Sensor&) = default; 66 67 explicit Sensor(const char * name = ""); 68 explicit Sensor(struct sensor_t const* hwSensor, int halVersion = 0); 69 Sensor(struct sensor_t const& hwSensor, const uuid_t& uuid, int halVersion = 0); 70 ~Sensor(); 71 72 const String8& getName() const; 73 const String8& getVendor() const; 74 int32_t getHandle() const; 75 int32_t getType() const; 76 float getMinValue() const; 77 float getMaxValue() const; 78 float getResolution() const; 79 float getPowerUsage() const; 80 int32_t getMinDelay() const; 81 nsecs_t getMinDelayNs() const; 82 int32_t getVersion() const; 83 uint32_t getFifoReservedEventCount() const; 84 uint32_t getFifoMaxEventCount() const; 85 const String8& getStringType() const; 86 const String8& getRequiredPermission() const; 87 bool isRequiredPermissionRuntime() const; 88 int32_t getRequiredAppOp() const; 89 int32_t getMaxDelay() const; 90 uint32_t getFlags() const; 91 bool isWakeUpSensor() const; 92 bool isDynamicSensor() const; 93 bool isDataInjectionSupported() const; 94 bool hasAdditionalInfo() const; 95 int32_t getHighestDirectReportRateLevel() const; 96 bool isDirectChannelTypeSupported(int32_t sharedMemType) const; 97 int32_t getReportingMode() const; 98 99 // Note that after setId() has been called, getUuid() no longer 100 // returns the UUID. 101 // TODO(b/29547335): Remove getUuid(), add getUuidIndex(), and 102 // make sure setId() doesn't change the UuidIndex. 103 const uuid_t& getUuid() const; 104 int32_t getId() const; 105 void setId(int32_t id); 106 107 void capMinDelayMicros(int32_t cappedMinDelay); 108 void capHighestDirectReportRateLevel(int32_t cappedRateLevel); 109 110 // LightFlattenable protocol isFixedSize()111 inline bool isFixedSize() const { return false; } 112 size_t getFlattenedSize() const; 113 status_t flatten(void* buffer, size_t size) const; 114 status_t unflatten(void const* buffer, size_t size); 115 116 private: 117 String8 mName; 118 String8 mVendor; 119 int32_t mHandle; 120 int32_t mType; 121 float mMinValue; 122 float mMaxValue; 123 float mResolution; 124 float mPower; 125 int32_t mMinDelay; 126 int32_t mVersion; 127 uint32_t mFifoReservedEventCount; 128 uint32_t mFifoMaxEventCount; 129 String8 mStringType; 130 String8 mRequiredPermission; 131 bool mRequiredPermissionRuntime = false; 132 int32_t mRequiredAppOp; 133 int32_t mMaxDelay; 134 uint32_t mFlags; 135 // TODO(b/29547335): Get rid of this field and replace with an index. 136 // The index will be into a separate global vector of UUIDs. 137 // Also add an mId field (and change flatten/unflatten appropriately). 138 uuid_t mUuid; 139 static void flattenString8(void*& buffer, size_t& size, const String8& string8); 140 static bool unflattenString8(void const*& buffer, size_t& size, String8& outputString8); 141 }; 142 143 // ---------------------------------------------------------------------------- 144 }; // namespace android 145