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_GnssNi_H_
18 #define android_hardware_gnss_V1_0_GnssNi_H_
19 
20 #include <ThreadCreationWrapper.h>
21 #include <android/hardware/gnss/1.0/IGnssNi.h>
22 #include <hidl/Status.h>
23 #include <hardware/gps.h>
24 
25 namespace android {
26 namespace hardware {
27 namespace gnss {
28 namespace V1_0 {
29 namespace implementation {
30 
31 using ::android::hardware::gnss::V1_0::IGnssNi;
32 using ::android::hardware::gnss::V1_0::IGnssNiCallback;
33 using ::android::hardware::Return;
34 using ::android::hardware::Void;
35 using ::android::hardware::hidl_vec;
36 using ::android::hardware::hidl_string;
37 using ::android::sp;
38 
39 /*
40  * Extended interface for Network-initiated (NI) support. This interface is used to respond to
41  * NI notifications originating from the HAL. Also contains wrapper methods to allow methods from
42  * IGnssNiCallback interface to be passed into the conventional implementation of the GNSS HAL.
43  */
44 struct GnssNi : public IGnssNi {
45     GnssNi(const GpsNiInterface* gpsNiIface);
46     ~GnssNi();
47 
48     /*
49      * Methods from ::android::hardware::gnss::V1_0::IGnssNi follow.
50      * These declarations were generated from IGnssNi.hal.
51      */
52     Return<void> setCallback(const sp<IGnssNiCallback>& callback) override;
53     Return<void> respond(int32_t notifId,
54                          IGnssNiCallback::GnssUserResponseType userResponse) override;
55 
56     /*
57      * Callback methods to be passed into the conventional GNSS HAL by the default
58      * implementation. These methods are not part of the IGnssNi base class.
59      */
60     static pthread_t createThreadCb(const char* name, void (*start)(void*), void* arg);
61     static void niNotifyCb(GpsNiNotification* notification);
62 
63     /*
64      * Holds function pointers to the callback methods.
65      */
66     static GpsNiCallbacks sGnssNiCb;
67 
68  private:
69     const GpsNiInterface* mGnssNiIface = nullptr;
70     static sp<IGnssNiCallback> sGnssNiCbIface;
71     static std::vector<std::unique_ptr<ThreadFuncArgs>> sThreadFuncArgsList;
72     static bool sInterfaceExists;
73 };
74 
75 }  // namespace implementation
76 }  // namespace V1_0
77 }  // namespace gnss
78 }  // namespace hardware
79 }  // namespace android
80 
81 #endif  // android_hardware_gnss_V1_0_GnssNi_H_
82