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 #define LOG_TAG "GnssHAL_GnssXtraInterface"
18
19 #include "GnssXtra.h"
20
21 namespace android {
22 namespace hardware {
23 namespace gnss {
24 namespace V1_0 {
25 namespace implementation {
26
27 std::vector<std::unique_ptr<ThreadFuncArgs>> GnssXtra::sThreadFuncArgsList;
28 sp<IGnssXtraCallback> GnssXtra::sGnssXtraCbIface = nullptr;
29 bool GnssXtra::sInterfaceExists = false;
30
31 GpsXtraCallbacks GnssXtra::sGnssXtraCb = {
32 .download_request_cb = gnssXtraDownloadRequestCb,
33 .create_thread_cb = createThreadCb,
34 };
35
~GnssXtra()36 GnssXtra::~GnssXtra() {
37 sThreadFuncArgsList.clear();
38 sInterfaceExists = false;
39 }
40
createThreadCb(const char * name,void (* start)(void *),void * arg)41 pthread_t GnssXtra::createThreadCb(const char* name, void (*start)(void*), void* arg) {
42 return createPthread(name, start, arg, &sThreadFuncArgsList);
43 }
44
GnssXtra(const GpsXtraInterface * xtraIface)45 GnssXtra::GnssXtra(const GpsXtraInterface* xtraIface) : mGnssXtraIface(xtraIface) {
46 /* Error out if an instance of the interface already exists. */
47 LOG_ALWAYS_FATAL_IF(sInterfaceExists);
48 sInterfaceExists = true;
49 }
50
gnssXtraDownloadRequestCb()51 void GnssXtra::gnssXtraDownloadRequestCb() {
52 if (sGnssXtraCbIface == nullptr) {
53 ALOGE("%s: GNSS Callback Interface configured incorrectly", __func__);
54 return;
55 }
56
57 auto ret = sGnssXtraCbIface->downloadRequestCb();
58 if (!ret.isOk()) {
59 ALOGE("%s: Unable to invoke callback", __func__);
60 }
61 }
62
63 // Methods from ::android::hardware::gnss::V1_0::IGnssXtra follow.
setCallback(const sp<IGnssXtraCallback> & callback)64 Return<bool> GnssXtra::setCallback(const sp<IGnssXtraCallback>& callback) {
65 if (mGnssXtraIface == nullptr) {
66 ALOGE("%s: Gnss Xtra interface is unavailable", __func__);
67 return false;
68 }
69
70 sGnssXtraCbIface = callback;
71
72 return (mGnssXtraIface->init(&sGnssXtraCb) == 0);
73 }
74
injectXtraData(const hidl_string & xtraData)75 Return<bool> GnssXtra::injectXtraData(const hidl_string& xtraData) {
76 if (mGnssXtraIface == nullptr) {
77 ALOGE("%s: Gnss Xtra interface is unavailable", __func__);
78 return false;
79 }
80
81 char* buf = new char[xtraData.size()];
82 const char* data = xtraData.c_str();
83
84 memcpy(buf, data, xtraData.size());
85
86 int ret = mGnssXtraIface->inject_xtra_data(buf, xtraData.size());
87 delete[] buf;
88 return (ret == 0);
89 }
90
91 } // namespace implementation
92 } // namespace V1_0
93 } // namespace gnss
94 } // namespace hardware
95 } // namespace android
96