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/*
* Copyright (C) 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "GnssHAL_AGnssInterface"
#include "AGnss.h"
namespace android {
namespace hardware {
namespace gnss {
namespace V1_0 {
namespace implementation {
std::vector<std::unique_ptr<ThreadFuncArgs>> AGnss::sThreadFuncArgsList;
sp<IAGnssCallback> AGnss::sAGnssCbIface = nullptr;
bool AGnss::sInterfaceExists = false;
AGpsCallbacks AGnss::sAGnssCb = {
.status_cb = statusCb,
.create_thread_cb = createThreadCb
};
AGnss::AGnss(const AGpsInterface* aGpsIface) : mAGnssIface(aGpsIface) {
/* Error out if an instance of the interface already exists. */
LOG_ALWAYS_FATAL_IF(sInterfaceExists);
sInterfaceExists = true;
}
AGnss::~AGnss() {
sThreadFuncArgsList.clear();
sInterfaceExists = false;
}
void AGnss::statusCb(AGpsStatus* status) {
if (sAGnssCbIface == nullptr) {
ALOGE("%s: AGNSS Callback Interface configured incorrectly", __func__);
return;
}
if (status == nullptr) {
ALOGE("AGNSS status is invalid");
return;
}
/*
* Logic based on AGnssStatus processing by GnssLocationProvider. Size of
* AGpsStatus is checked for backward compatibility since some devices may
* be sending out an older version of AGpsStatus that only supports IPv4.
*/
size_t statusSize = status->size;
if (status->size == sizeof(AGpsStatus)) {
switch (status->addr.ss_family)
{
case AF_INET:
{
/*
* ss_family indicates IPv4.
*/
struct sockaddr_in* in = reinterpret_cast<struct sockaddr_in*>(&(status->addr));
IAGnssCallback::AGnssStatusIpV4 aGnssStatusIpV4 = {
.type = static_cast<IAGnssCallback::AGnssType>(status->type),
.status = static_cast<IAGnssCallback::AGnssStatusValue>(status->status),
.ipV4Addr = in->sin_addr.s_addr,
};
/*
* Callback to client with agnssStatusIpV4Cb.
*/
auto ret = sAGnssCbIface->agnssStatusIpV4Cb(aGnssStatusIpV4);
if (!ret.isOk()) {
ALOGE("%s: Unable to invoke callback", __func__);
}
break;
}
case AF_INET6:
{
/*
* ss_family indicates IPv6. Callback to client with agnssStatusIpV6Cb.
*/
IAGnssCallback::AGnssStatusIpV6 aGnssStatusIpV6;
aGnssStatusIpV6.type = static_cast<IAGnssCallback::AGnssType>(status->type);
aGnssStatusIpV6.status = static_cast<IAGnssCallback::AGnssStatusValue>(
status->status);
struct sockaddr_in6* in6 = reinterpret_cast<struct sockaddr_in6 *>(
&(status->addr));
memcpy(&(aGnssStatusIpV6.ipV6Addr[0]), in6->sin6_addr.s6_addr,
aGnssStatusIpV6.ipV6Addr.size());
auto ret = sAGnssCbIface->agnssStatusIpV6Cb(aGnssStatusIpV6);
if (!ret.isOk()) {
ALOGE("%s: Unable to invoke callback", __func__);
}
break;
}
default:
ALOGE("Invalid ss_family found: %d", status->addr.ss_family);
}
} else if (statusSize >= sizeof(AGpsStatus_v2)) {
AGpsStatus_v2* statusV2 = reinterpret_cast<AGpsStatus_v2*>(status);
uint32_t ipV4Addr = statusV2->ipaddr;
IAGnssCallback::AGnssStatusIpV4 aGnssStatusIpV4 = {
.type = static_cast<IAGnssCallback::AGnssType>(AF_INET),
.status = static_cast<IAGnssCallback::AGnssStatusValue>(status->status),
/*
* For older versions of AGpsStatus, change IP addr to net order. This
* was earlier being done in GnssLocationProvider.
*/
.ipV4Addr = htonl(ipV4Addr)
};
/*
* Callback to client with agnssStatusIpV4Cb.
*/
auto ret = sAGnssCbIface->agnssStatusIpV4Cb(aGnssStatusIpV4);
if (!ret.isOk()) {
ALOGE("%s: Unable to invoke callback", __func__);
}
} else {
ALOGE("%s: Invalid size for AGPS Status", __func__);
}
}
pthread_t AGnss::createThreadCb(const char* name, void (*start)(void*), void* arg) {
return createPthread(name, start, arg, &sThreadFuncArgsList);
}
/*
* Implementation of methods from ::android::hardware::gnss::V1_0::IAGnss follow.
*/
Return<void> AGnss::setCallback(const sp<IAGnssCallback>& callback) {
if (mAGnssIface == nullptr) {
ALOGE("%s: AGnss interface is unavailable", __func__);
return Void();
}
sAGnssCbIface = callback;
mAGnssIface->init(&sAGnssCb);
return Void();
}
Return<bool> AGnss::dataConnClosed() {
if (mAGnssIface == nullptr) {
ALOGE("%s: AGnss interface is unavailable", __func__);
return false;
}
return (mAGnssIface->data_conn_closed() == 0);
}
Return<bool> AGnss::dataConnFailed() {
if (mAGnssIface == nullptr) {
ALOGE("%s: AGnss interface is unavailable", __func__);
return false;
}
return (mAGnssIface->data_conn_failed() == 0);
}
Return<bool> AGnss::setServer(IAGnssCallback::AGnssType type,
const hidl_string& hostname,
int32_t port) {
if (mAGnssIface == nullptr) {
ALOGE("%s: AGnss interface is unavailable", __func__);
return false;
}
return (mAGnssIface->set_server(static_cast<AGpsType>(type), hostname.c_str(), port) == 0);
}
Return<bool> AGnss::dataConnOpen(const hidl_string& apn, IAGnss::ApnIpType apnIpType) {
if (mAGnssIface == nullptr) {
ALOGE("%s: AGnss interface is unavailable", __func__);
return false;
}
return (mAGnssIface->data_conn_open_with_apn_ip_type(apn.c_str(),
static_cast<uint16_t>(apnIpType)) == 0);
}
} // namespace implementation
} // namespace V1_0
} // namespace gnss
} // namespace hardware
} // namespace android
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