1 /* 2 * Copyright (C) 2016 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 #ifndef android_hardware_gnss_V1_0_Gnss_H_ 18 #define android_hardware_gnss_V1_0_Gnss_H_ 19 20 #include <AGnss.h> 21 #include <AGnssRil.h> 22 #include <GnssBatching.h> 23 #include <GnssConfiguration.h> 24 #include <GnssDebug.h> 25 #include <GnssGeofencing.h> 26 #include <GnssMeasurement.h> 27 #include <GnssNavigationMessage.h> 28 #include <GnssNi.h> 29 #include <GnssXtra.h> 30 31 #include <ThreadCreationWrapper.h> 32 #include <android/hardware/gnss/1.0/IGnss.h> 33 #include <hardware/fused_location.h> 34 #include <hardware/gps.h> 35 #include <hidl/Status.h> 36 37 namespace android { 38 namespace hardware { 39 namespace gnss { 40 namespace V1_0 { 41 namespace implementation { 42 43 using ::android::hardware::Return; 44 using ::android::hardware::Void; 45 using ::android::hardware::hidl_vec; 46 using ::android::hardware::hidl_string; 47 using ::android::sp; 48 49 using LegacyGnssSystemInfo = ::GnssSystemInfo; 50 51 /* 52 * Represents the standard GNSS interface. Also contains wrapper methods to allow methods from 53 * IGnssCallback interface to be passed into the conventional implementation of the GNSS HAL. 54 */ 55 class Gnss : public IGnss { 56 public: 57 Gnss(gps_device_t* gnss_device); 58 ~Gnss(); 59 60 /* 61 * Methods from ::android::hardware::gnss::V1_0::IGnss follow. 62 * These declarations were generated from Gnss.hal. 63 */ 64 Return<bool> setCallback(const sp<IGnssCallback>& callback) override; 65 Return<bool> start() override; 66 Return<bool> stop() override; 67 Return<void> cleanup() override; 68 Return<bool> injectLocation(double latitudeDegrees, 69 double longitudeDegrees, 70 float accuracyMeters) override; 71 Return<bool> injectTime(int64_t timeMs, 72 int64_t timeReferenceMs, 73 int32_t uncertaintyMs) override; 74 Return<void> deleteAidingData(IGnss::GnssAidingData aidingDataFlags) override; 75 Return<bool> setPositionMode(IGnss::GnssPositionMode mode, 76 IGnss::GnssPositionRecurrence recurrence, 77 uint32_t minIntervalMs, 78 uint32_t preferredAccuracyMeters, 79 uint32_t preferredTimeMs) override; 80 Return<sp<IAGnssRil>> getExtensionAGnssRil() override; 81 Return<sp<IGnssGeofencing>> getExtensionGnssGeofencing() override; 82 Return<sp<IAGnss>> getExtensionAGnss() override; 83 Return<sp<IGnssNi>> getExtensionGnssNi() override; 84 Return<sp<IGnssMeasurement>> getExtensionGnssMeasurement() override; 85 Return<sp<IGnssNavigationMessage>> getExtensionGnssNavigationMessage() override; 86 Return<sp<IGnssXtra>> getExtensionXtra() override; 87 Return<sp<IGnssConfiguration>> getExtensionGnssConfiguration() override; 88 Return<sp<IGnssDebug>> getExtensionGnssDebug() override; 89 Return<sp<IGnssBatching>> getExtensionGnssBatching() override; 90 91 /* 92 * Callback methods to be passed into the conventional GNSS HAL by the default 93 * implementation. These methods are not part of the IGnss base class. 94 */ 95 static void locationCb(GpsLocation* location); 96 static void statusCb(GpsStatus* gnss_status); 97 static void nmeaCb(GpsUtcTime timestamp, const char* nmea, int length); 98 static void setCapabilitiesCb(uint32_t capabilities); 99 static void acquireWakelockCb(); 100 static void releaseWakelockCb(); 101 static void requestUtcTimeCb(); 102 static pthread_t createThreadCb(const char* name, void (*start)(void*), void* arg); 103 static void gnssSvStatusCb(GnssSvStatus* status); 104 /* 105 * Deprecated callback added for backward compatibility to devices that do 106 * not support GnssSvStatus. 107 */ 108 static void gpsSvStatusCb(GpsSvStatus* status); 109 static void setSystemInfoCb(const LegacyGnssSystemInfo* info); 110 111 /* 112 * Wakelock consolidation, only needed for dual use of a gps.h & fused_location.h HAL 113 * 114 * Ensures that if the last call from either legacy .h was to acquire a wakelock, that a 115 * wakelock is held. Otherwise releases it. 116 */ 117 static void acquireWakelockFused(); 118 static void releaseWakelockFused(); 119 120 /* 121 * Holds function pointers to the callback methods. 122 */ 123 static GpsCallbacks sGnssCb; 124 125 private: 126 /* 127 * For handling system-server death while GNSS service lives on. 128 */ 129 class GnssHidlDeathRecipient : public hidl_death_recipient { 130 public: 131 GnssHidlDeathRecipient(const sp<Gnss> gnss) : mGnss(gnss) { 132 } 133 134 virtual void serviceDied(uint64_t /*cookie*/, 135 const wp<::android::hidl::base::V1_0::IBase>& /*who*/) { 136 mGnss->handleHidlDeath(); 137 } 138 private: 139 sp<Gnss> mGnss; 140 }; 141 142 // for wakelock consolidation, see above 143 static void acquireWakelockGnss(); 144 static void releaseWakelockGnss(); 145 static void updateWakelock(); 146 static bool sWakelockHeldGnss; 147 static bool sWakelockHeldFused; 148 149 /* 150 * Cleanup for death notification 151 */ 152 void handleHidlDeath(); 153 154 sp<GnssXtra> mGnssXtraIface = nullptr; 155 sp<AGnssRil> mGnssRil = nullptr; 156 sp<GnssGeofencing> mGnssGeofencingIface = nullptr; 157 sp<AGnss> mAGnssIface = nullptr; 158 sp<GnssNi> mGnssNi = nullptr; 159 sp<GnssMeasurement> mGnssMeasurement = nullptr; 160 sp<GnssNavigationMessage> mGnssNavigationMessage = nullptr; 161 sp<GnssDebug> mGnssDebug = nullptr; 162 sp<GnssConfiguration> mGnssConfig = nullptr; 163 sp<GnssBatching> mGnssBatching = nullptr; 164 165 sp<GnssHidlDeathRecipient> mDeathRecipient; 166 167 const GpsInterface* mGnssIface = nullptr; 168 static sp<IGnssCallback> sGnssCbIface; 169 static std::vector<std::unique_ptr<ThreadFuncArgs>> sThreadFuncArgsList; 170 static bool sInterfaceExists; 171 172 // Values saved for resend 173 static uint32_t sCapabilitiesCached; 174 static uint16_t sYearOfHwCached; 175 }; 176 177 extern "C" IGnss* HIDL_FETCH_IGnss(const char* name); 178 179 } // namespace implementation 180 } // namespace V1_0 181 } // namespace gnss 182 } // namespace hardware 183 } // namespace android 184 185 #endif // android_hardware_gnss_V1_0_Gnss_H_ 186
