| /* |
| * Copyright 2008, 2009, 2010 Free Software Foundation, Inc. |
| * Copyright 2010 Kestrel Signal Processing, Inc. |
| * |
| * This software is distributed under the terms of the GNU Affero Public License. |
| * See the COPYING file in the main directory for details. |
| * |
| * This use of this software may be subject to additional restrictions. |
| * See the LEGAL file in the main directory for details. |
| |
| This program is free software: you can redistribute it and/or modify |
| it under the terms of the GNU Affero General Public License as published by |
| the Free Software Foundation, either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU Affero General Public License for more details. |
| |
| You should have received a copy of the GNU Affero General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. |
| |
| */ |
| |
| |
| |
| #include "Transceiver.h" |
| #include "radioDevice.h" |
| #include "DummyLoad.h" |
| |
| #include <time.h> |
| #include <signal.h> |
| |
| #include <GSMCommon.h> |
| #include <Logger.h> |
| #include <Configuration.h> |
| |
| #define CONFIGDB "/etc/OpenBTS/OpenBTS.db" |
| |
| /* Samples-per-symbol for downlink path |
| * 4 - Uses precision modulator (more computation, less distortion) |
| * 1 - Uses minimized modulator (less computation, more distortion) |
| * |
| * Other values are invalid. Receive path (uplink) is always |
| * downsampled to 1 sps |
| */ |
| #define SPS 4 |
| |
| ConfigurationTable gConfig(CONFIGDB); |
| |
| volatile bool gbShutdown = false; |
| |
| static void ctrlCHandler(int signo) |
| { |
| std::cout << "Received shutdown signal" << std::endl; |
| gbShutdown = true; |
| } |
| |
| /* |
| * Attempt to open and test the database file before |
| * accessing the configuration table. We do this because |
| * the global table constructor cannot provide notification |
| * in the event of failure. |
| */ |
| int testConfig(const char *filename) |
| { |
| int rc, val = 9999; |
| sqlite3 *db; |
| std::string test = "sadf732zdvj2"; |
| |
| const char *keys[3] = { |
| "Log.Level", |
| "TRX.Port", |
| "TRX.IP", |
| }; |
| |
| /* Try to open the database */ |
| rc = sqlite3_open(filename, &db); |
| if (rc || !db) { |
| std::cerr << "Config: Database could not be opened" << std::endl; |
| return -1; |
| } else { |
| sqlite3_close(db); |
| } |
| |
| /* Attempt to set a value in the global config */ |
| if (!gConfig.set(test, val)) { |
| std::cerr << "Config: Failed to set test key - " |
| << "permission to access the database?" << std::endl; |
| return -1; |
| } else { |
| gConfig.remove(test); |
| } |
| |
| /* Attempt to query */ |
| for (int i = 0; i < 3; i++) { |
| try { |
| gConfig.getStr(keys[i]); |
| } catch (...) { |
| std::cerr << "Config: Failed query on " << keys[i] << std::endl; |
| return -1; |
| } |
| } |
| |
| return 0; |
| } |
| |
| int main(int argc, char *argv[]) |
| { |
| int trxPort, radioType, extref = 0, fail = 0; |
| std::string deviceArgs, logLevel, trxAddr; |
| RadioDevice *usrp = NULL; |
| RadioInterface *radio = NULL; |
| Transceiver *trx = NULL; |
| |
| if (argc == 3) |
| deviceArgs = std::string(argv[2]); |
| else |
| deviceArgs = ""; |
| |
| if (signal(SIGINT, ctrlCHandler) == SIG_ERR) { |
| std::cerr << "Couldn't install signal handler for SIGINT" << std::endl; |
| return EXIT_FAILURE; |
| } |
| |
| if (signal(SIGTERM, ctrlCHandler) == SIG_ERR) { |
| std::cerr << "Couldn't install signal handler for SIGTERM" << std::endl; |
| return EXIT_FAILURE; |
| } |
| |
| // Configure logger. |
| if (testConfig(CONFIGDB) < 0) { |
| std::cerr << "Config: Database failure" << std::endl; |
| return EXIT_FAILURE; |
| } |
| |
| logLevel = gConfig.getStr("Log.Level"); |
| trxPort = gConfig.getNum("TRX.Port"); |
| trxAddr = gConfig.getStr("TRX.IP"); |
| |
| if (gConfig.defines("TRX.Reference")) |
| extref = gConfig.getNum("TRX.Reference"); |
| |
| if (extref) |
| std::cout << "Using external clock reference" << std::endl; |
| else |
| std::cout << "Using internal clock reference" << std::endl; |
| |
| gLogInit("transceiver", logLevel.c_str(), LOG_LOCAL7); |
| |
| srandom(time(NULL)); |
| |
| usrp = RadioDevice::make(SPS); |
| radioType = usrp->open(deviceArgs, extref); |
| if (radioType < 0) { |
| LOG(ALERT) << "Transceiver exiting..." << std::endl; |
| return EXIT_FAILURE; |
| } |
| |
| switch (radioType) { |
| case RadioDevice::NORMAL: |
| radio = new RadioInterface(usrp, 3, SPS, false); |
| break; |
| case RadioDevice::RESAMP_64M: |
| case RadioDevice::RESAMP_100M: |
| radio = new RadioInterfaceResamp(usrp, 3, SPS, false); |
| break; |
| default: |
| LOG(ALERT) << "Unsupported configuration"; |
| fail = 1; |
| goto shutdown; |
| } |
| if (!radio->init(radioType)) { |
| LOG(ALERT) << "Failed to initialize radio interface"; |
| fail = 1; |
| goto shutdown; |
| } |
| |
| trx = new Transceiver(trxPort, trxAddr.c_str(), SPS, GSM::Time(3,0), radio); |
| if (!trx->init()) { |
| LOG(ALERT) << "Failed to initialize transceiver"; |
| fail = 1; |
| goto shutdown; |
| } |
| trx->receiveFIFO(radio->receiveFIFO()); |
| trx->start(); |
| |
| while (!gbShutdown) |
| sleep(1); |
| |
| shutdown: |
| std::cout << "Shutting down transceiver..." << std::endl; |
| |
| delete trx; |
| delete radio; |
| delete usrp; |
| |
| if (fail) |
| return EXIT_FAILURE; |
| |
| return 0; |
| } |