Read GNSS measurement from device file when available
Test: atest CtsLocationGnssTestCases GtsLocationTestCases on CF
Bug: 190757198
Change-Id: Ic03d56a5df6b99f7b20c5840e7091ead138316b1
diff --git a/gnss/common/utils/default/include/DeviceFileReader.h b/gnss/common/utils/default/include/DeviceFileReader.h
new file mode 100644
index 0000000..c2a5c5f
--- /dev/null
+++ b/gnss/common/utils/default/include/DeviceFileReader.h
@@ -0,0 +1,53 @@
+
+/*
+ * Copyright (C) 2021 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.
+ */
+#ifndef android_hardware_gnss_common_default_DeviceFileReader_H_
+#define android_hardware_gnss_common_default_DeviceFileReader_H_
+
+#include <log/log.h>
+#include <mutex>
+#include <string>
+#include <unordered_map>
+#include "Constants.h"
+#include "GnssReplayUtils.h"
+
+namespace android {
+namespace hardware {
+namespace gnss {
+namespace common {
+class DeviceFileReader {
+ public:
+ static DeviceFileReader& Instance() {
+ static DeviceFileReader reader;
+ return reader;
+ }
+ std::string getLocationData();
+ std::string getGnssRawMeasurementData();
+ void getDataFromDeviceFile(const std::string& command, int mMinIntervalMs);
+
+ private:
+ DeviceFileReader();
+ ~DeviceFileReader();
+ std::unordered_map<std::string, std::string> data_;
+ std::string s_buffer_;
+ std::mutex mMutex;
+};
+} // namespace common
+} // namespace gnss
+} // namespace hardware
+} // namespace android
+
+#endif // android_hardware_gnss_common_default_DeviceFileReader_H_
\ No newline at end of file
diff --git a/gnss/common/utils/default/include/v2_1/GnssTemplate.h b/gnss/common/utils/default/include/v2_1/GnssTemplate.h
index 6f0ced1..19b1b45 100644
--- a/gnss/common/utils/default/include/v2_1/GnssTemplate.h
+++ b/gnss/common/utils/default/include/v2_1/GnssTemplate.h
@@ -30,6 +30,7 @@
#include <cutils/properties.h>
+#include "DeviceFileReader.h"
#include "GnssAntennaInfo.h"
#include "GnssConfiguration.h"
#include "GnssDebug.h"
@@ -163,19 +164,9 @@
template <class T_IGnss>
std::unique_ptr<V2_0::GnssLocation> GnssTemplate<T_IGnss>::getLocationFromHW() {
- if (!mHardwareModeChecked) {
- // default using /dev/gnss0
- std::string gnss_dev_path = ReplayUtils::getGnssPath();
-
- mGnssFd = open(gnss_dev_path.c_str(), O_RDWR | O_NONBLOCK);
- if (mGnssFd == -1) {
- ALOGW("Failed to open %s errno: %d", gnss_dev_path.c_str(), errno);
- }
- mHardwareModeChecked = true;
- }
-
- std::string inputStr = ::android::hardware::gnss::common::ReplayUtils::getDataFromDeviceFile(
- CMD_GET_LOCATION, mMinIntervalMs);
+ mHardwareModeChecked = true;
+ std::string inputStr =
+ ::android::hardware::gnss::common::DeviceFileReader::Instance().getLocationData();
return NmeaFixInfo::getLocationFromInputStr(inputStr);
}