dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2008, 2009, 2010 Free Software Foundation, Inc. |
| 3 | * |
| 4 | * This software is distributed under the terms of the GNU Public License. |
| 5 | * See the COPYING file in the main directory for details. |
| 6 | * |
| 7 | * This use of this software may be subject to additional restrictions. |
| 8 | * See the LEGAL file in the main directory for details. |
| 9 | |
| 10 | This program is free software: you can redistribute it and/or modify |
| 11 | it under the terms of the GNU General Public License as published by |
| 12 | the Free Software Foundation, either version 3 of the License, or |
| 13 | (at your option) any later version. |
| 14 | |
| 15 | This program is distributed in the hope that it will be useful, |
| 16 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 18 | GNU General Public License for more details. |
| 19 | |
| 20 | You should have received a copy of the GNU General Public License |
| 21 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 22 | */ |
| 23 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 24 | #include <stdio.h> |
Alexander Chemeris | e8905a0 | 2015-06-03 23:47:56 -0400 | [diff] [blame] | 25 | #include <iomanip> // std::setprecision |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 26 | #include <fstream> |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 27 | #include "Transceiver.h" |
| 28 | #include <Logger.h> |
| 29 | |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 30 | extern "C" { |
| 31 | #include "osmo_signal.h" |
Pau Espin Pedrol | 778b30a | 2019-06-28 13:27:24 +0200 | [diff] [blame] | 32 | #include "proto_trxd.h" |
| 33 | |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 34 | #include <osmocom/core/utils.h> |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 35 | #include <osmocom/core/socket.h> |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 36 | #include <osmocom/core/bits.h> |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 37 | } |
| 38 | |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 39 | #ifdef HAVE_CONFIG_H |
| 40 | #include "config.h" |
| 41 | #endif |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 42 | |
Alexander Chemeris | d734e2d | 2013-06-16 14:30:58 +0400 | [diff] [blame] | 43 | using namespace GSM; |
| 44 | |
kurtis.heimerl | ec842de | 2012-11-23 08:37:32 +0000 | [diff] [blame] | 45 | #define USB_LATENCY_INTRVL 10,0 |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 46 | |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 47 | /* Number of running values use in noise average */ |
| 48 | #define NOISE_CNT 20 |
ttsou | e8dde02 | 2012-12-06 15:43:55 +0000 | [diff] [blame] | 49 | |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 50 | TransceiverState::TransceiverState() |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 51 | : mRetrans(false), mNoiseLev(0.0), mNoises(NOISE_CNT), mPower(0.0) |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 52 | { |
| 53 | for (int i = 0; i < 8; i++) { |
| 54 | chanType[i] = Transceiver::NONE; |
| 55 | fillerModulus[i] = 26; |
| 56 | chanResponse[i] = NULL; |
| 57 | DFEForward[i] = NULL; |
| 58 | DFEFeedback[i] = NULL; |
| 59 | |
| 60 | for (int n = 0; n < 102; n++) |
| 61 | fillerTable[n][i] = NULL; |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | TransceiverState::~TransceiverState() |
| 66 | { |
| 67 | for (int i = 0; i < 8; i++) { |
| 68 | delete chanResponse[i]; |
| 69 | delete DFEForward[i]; |
| 70 | delete DFEFeedback[i]; |
| 71 | |
| 72 | for (int n = 0; n < 102; n++) |
| 73 | delete fillerTable[n][i]; |
| 74 | } |
| 75 | } |
| 76 | |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 77 | bool TransceiverState::init(FillerType filler, size_t sps, float scale, size_t rtsc, unsigned rach_delay) |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 78 | { |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 79 | signalVector *burst; |
| 80 | |
| 81 | if ((sps != 1) && (sps != 4)) |
| 82 | return false; |
| 83 | |
| 84 | for (size_t n = 0; n < 8; n++) { |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 85 | for (size_t i = 0; i < 102; i++) { |
| 86 | switch (filler) { |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 87 | case FILLER_DUMMY: |
Tom Tsou | 8ee2f38 | 2016-03-06 20:57:34 -0800 | [diff] [blame] | 88 | burst = generateDummyBurst(sps, n); |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 89 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 90 | case FILLER_NORM_RAND: |
Tom Tsou | 8ee2f38 | 2016-03-06 20:57:34 -0800 | [diff] [blame] | 91 | burst = genRandNormalBurst(rtsc, sps, n); |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 92 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 93 | case FILLER_EDGE_RAND: |
Tom Tsou | af717b2 | 2016-03-06 22:19:15 -0800 | [diff] [blame] | 94 | burst = generateEdgeBurst(rtsc); |
| 95 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 96 | case FILLER_ACCESS_RAND: |
Alexander Chemeris | 37c52c7 | 2016-03-25 18:28:34 +0300 | [diff] [blame] | 97 | burst = genRandAccessBurst(rach_delay, sps, n); |
Alexander Chemeris | 5efe050 | 2016-03-23 17:06:32 +0300 | [diff] [blame] | 98 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 99 | case FILLER_ZERO: |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 100 | default: |
Tom Tsou | 8ee2f38 | 2016-03-06 20:57:34 -0800 | [diff] [blame] | 101 | burst = generateEmptyBurst(sps, n); |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 102 | } |
| 103 | |
| 104 | scaleVector(*burst, scale); |
| 105 | fillerTable[i][n] = burst; |
| 106 | } |
| 107 | |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 108 | if ((filler == FILLER_NORM_RAND) || |
| 109 | (filler == FILLER_EDGE_RAND)) { |
Alexander Chemeris | f9e78be | 2017-03-17 15:00:34 -0700 | [diff] [blame] | 110 | chanType[n] = TSC; |
Tom Tsou | af717b2 | 2016-03-06 22:19:15 -0800 | [diff] [blame] | 111 | } |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 112 | } |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 113 | |
| 114 | return false; |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 115 | } |
| 116 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 117 | Transceiver::Transceiver(int wBasePort, |
Pau Espin Pedrol | 8c80095 | 2017-08-16 16:53:23 +0200 | [diff] [blame] | 118 | const char *TRXAddress, |
| 119 | const char *GSMcoreAddress, |
Tom Tsou | 5cd70dc | 2016-03-06 01:28:40 -0800 | [diff] [blame] | 120 | size_t tx_sps, size_t rx_sps, size_t chans, |
Alexander Chemeris | e8905a0 | 2015-06-03 23:47:56 -0400 | [diff] [blame] | 121 | GSM::Time wTransmitLatency, |
| 122 | RadioInterface *wRadioInterface, |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 123 | double wRssiOffset, int wStackSize) |
Pau Espin Pedrol | 8c80095 | 2017-08-16 16:53:23 +0200 | [diff] [blame] | 124 | : mBasePort(wBasePort), mLocalAddr(TRXAddress), mRemoteAddr(GSMcoreAddress), |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 125 | mClockSocket(-1), mTransmitLatency(wTransmitLatency), mRadioInterface(wRadioInterface), |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 126 | rssiOffset(wRssiOffset), stackSize(wStackSize), |
Pau Espin Pedrol | 758381b | 2019-07-16 21:55:03 +0200 | [diff] [blame^] | 127 | mSPSTx(tx_sps), mSPSRx(rx_sps), mChans(chans), mExtRACH(false), mEdge(false), |
| 128 | mOn(false), mForceClockInterface(false), |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 129 | mTxFreq(0.0), mRxFreq(0.0), mTSC(0), mMaxExpectedDelayAB(0), mMaxExpectedDelayNB(0), |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 130 | mWriteBurstToDiskMask(0), mVersionTRXD(0) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 131 | { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 132 | txFullScale = mRadioInterface->fullScaleInputValue(); |
| 133 | rxFullScale = mRadioInterface->fullScaleOutputValue(); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 134 | |
| 135 | for (int i = 0; i < 8; i++) { |
| 136 | for (int j = 0; j < 8; j++) |
| 137 | mHandover[i][j] = false; |
| 138 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 139 | } |
| 140 | |
| 141 | Transceiver::~Transceiver() |
| 142 | { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 143 | stop(); |
| 144 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 145 | sigProcLibDestroy(); |
Thomas Tsou | d647ec5 | 2013-10-29 15:17:34 -0400 | [diff] [blame] | 146 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 147 | if (mClockSocket >= 0) |
| 148 | close(mClockSocket); |
| 149 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 150 | for (size_t i = 0; i < mChans; i++) { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 151 | mControlServiceLoopThreads[i]->cancel(); |
| 152 | mControlServiceLoopThreads[i]->join(); |
| 153 | delete mControlServiceLoopThreads[i]; |
| 154 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 155 | mTxPriorityQueues[i].clear(); |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 156 | if (mCtrlSockets[i] >= 0) |
| 157 | close(mCtrlSockets[i]); |
| 158 | if (mDataSockets[i] >= 0) |
| 159 | close(mDataSockets[i]); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 160 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 161 | } |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 162 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 163 | /* |
| 164 | * Initialize transceiver |
| 165 | * |
| 166 | * Start or restart the control loop. Any further control is handled through the |
| 167 | * socket API. Randomize the central radio clock set the downlink burst |
| 168 | * counters. Note that the clock will not update until the radio starts, but we |
| 169 | * are still expected to report clock indications through control channel |
| 170 | * activity. |
| 171 | */ |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 172 | bool Transceiver::init(FillerType filler, size_t rtsc, unsigned rach_delay, |
| 173 | bool edge, bool ext_rach) |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 174 | { |
Thomas Tsou | e1ce925 | 2013-11-13 22:40:44 -0500 | [diff] [blame] | 175 | int d_srcport, d_dstport, c_srcport, c_dstport; |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 176 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 177 | if (!mChans) { |
| 178 | LOG(ALERT) << "No channels assigned"; |
| 179 | return false; |
| 180 | } |
| 181 | |
Tom Tsou | 2079a3c | 2016-03-06 00:58:56 -0800 | [diff] [blame] | 182 | if (!sigProcLibSetup()) { |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 183 | LOG(ALERT) << "Failed to initialize signal processing library"; |
| 184 | return false; |
| 185 | } |
| 186 | |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 187 | mExtRACH = ext_rach; |
Tom Tsou | 64464e6 | 2016-07-01 03:46:46 -0700 | [diff] [blame] | 188 | mEdge = edge; |
| 189 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 190 | mDataSockets.resize(mChans, -1); |
| 191 | mCtrlSockets.resize(mChans, -1); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 192 | mControlServiceLoopThreads.resize(mChans); |
| 193 | mTxPriorityQueueServiceLoopThreads.resize(mChans); |
| 194 | mRxServiceLoopThreads.resize(mChans); |
| 195 | |
| 196 | mTxPriorityQueues.resize(mChans); |
| 197 | mReceiveFIFO.resize(mChans); |
| 198 | mStates.resize(mChans); |
| 199 | |
Thomas Tsou | ccb73e1 | 2014-04-15 17:41:28 -0400 | [diff] [blame] | 200 | /* Filler table retransmissions - support only on channel 0 */ |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 201 | if (filler == FILLER_DUMMY) |
Thomas Tsou | ccb73e1 | 2014-04-15 17:41:28 -0400 | [diff] [blame] | 202 | mStates[0].mRetrans = true; |
| 203 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 204 | /* Setup sockets */ |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 205 | mClockSocket = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
| 206 | mLocalAddr.c_str(), mBasePort, |
| 207 | mRemoteAddr.c_str(), mBasePort + 100, |
| 208 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
| 209 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 210 | for (size_t i = 0; i < mChans; i++) { |
Thomas Tsou | e1ce925 | 2013-11-13 22:40:44 -0500 | [diff] [blame] | 211 | c_srcport = mBasePort + 2 * i + 1; |
| 212 | c_dstport = mBasePort + 2 * i + 101; |
| 213 | d_srcport = mBasePort + 2 * i + 2; |
| 214 | d_dstport = mBasePort + 2 * i + 102; |
| 215 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 216 | mCtrlSockets[i] = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
| 217 | mLocalAddr.c_str(), c_srcport, |
| 218 | mRemoteAddr.c_str(), c_dstport, |
| 219 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
| 220 | if (mCtrlSockets[i] < 0) |
| 221 | return false; |
| 222 | |
| 223 | mDataSockets[i] = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
| 224 | mLocalAddr.c_str(), d_srcport, |
| 225 | mRemoteAddr.c_str(), d_dstport, |
| 226 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
| 227 | if (mCtrlSockets[i] < 0) |
| 228 | return false; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 229 | } |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 230 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 231 | /* Randomize the central clock */ |
| 232 | GSM::Time startTime(random() % gHyperframe, 0); |
| 233 | mRadioInterface->getClock()->set(startTime); |
| 234 | mTransmitDeadlineClock = startTime; |
| 235 | mLastClockUpdateTime = startTime; |
| 236 | mLatencyUpdateTime = startTime; |
| 237 | |
| 238 | /* Start control threads */ |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 239 | for (size_t i = 0; i < mChans; i++) { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 240 | TransceiverChannel *chan = new TransceiverChannel(this, i); |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 241 | mControlServiceLoopThreads[i] = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 242 | mControlServiceLoopThreads[i]->start((void * (*)(void*)) |
| 243 | ControlServiceLoopAdapter, (void*) chan); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 244 | |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 245 | if (i && filler == FILLER_DUMMY) |
| 246 | filler = FILLER_ZERO; |
| 247 | |
Alexander Chemeris | 37c52c7 | 2016-03-25 18:28:34 +0300 | [diff] [blame] | 248 | mStates[i].init(filler, mSPSTx, txFullScale, rtsc, rach_delay); |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 249 | } |
| 250 | |
| 251 | return true; |
| 252 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 253 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 254 | /* |
| 255 | * Start the transceiver |
| 256 | * |
| 257 | * Submit command(s) to the radio device to commence streaming samples and |
| 258 | * launch threads to handle sample I/O. Re-synchronize the transmit burst |
| 259 | * counters to the central radio clock here as well. |
| 260 | */ |
| 261 | bool Transceiver::start() |
| 262 | { |
| 263 | ScopedLock lock(mLock); |
| 264 | |
| 265 | if (mOn) { |
| 266 | LOG(ERR) << "Transceiver already running"; |
Ivan Kluchnikov | 194a9b1 | 2015-04-23 17:08:27 +0300 | [diff] [blame] | 267 | return true; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 268 | } |
| 269 | |
| 270 | LOG(NOTICE) << "Starting the transceiver"; |
| 271 | |
| 272 | GSM::Time time = mRadioInterface->getClock()->get(); |
| 273 | mTransmitDeadlineClock = time; |
| 274 | mLastClockUpdateTime = time; |
| 275 | mLatencyUpdateTime = time; |
| 276 | |
| 277 | if (!mRadioInterface->start()) { |
| 278 | LOG(ALERT) << "Device failed to start"; |
| 279 | return false; |
| 280 | } |
| 281 | |
| 282 | /* Device is running - launch I/O threads */ |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 283 | mRxLowerLoopThread = new Thread(stackSize); |
| 284 | mTxLowerLoopThread = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 285 | mTxLowerLoopThread->start((void * (*)(void*)) |
| 286 | TxLowerLoopAdapter,(void*) this); |
| 287 | mRxLowerLoopThread->start((void * (*)(void*)) |
| 288 | RxLowerLoopAdapter,(void*) this); |
| 289 | |
| 290 | /* Launch uplink and downlink burst processing threads */ |
| 291 | for (size_t i = 0; i < mChans; i++) { |
| 292 | TransceiverChannel *chan = new TransceiverChannel(this, i); |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 293 | mRxServiceLoopThreads[i] = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 294 | mRxServiceLoopThreads[i]->start((void * (*)(void*)) |
| 295 | RxUpperLoopAdapter, (void*) chan); |
| 296 | |
| 297 | chan = new TransceiverChannel(this, i); |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 298 | mTxPriorityQueueServiceLoopThreads[i] = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 299 | mTxPriorityQueueServiceLoopThreads[i]->start((void * (*)(void*)) |
| 300 | TxUpperLoopAdapter, (void*) chan); |
| 301 | } |
| 302 | |
Pau Espin Pedrol | 934da48 | 2017-07-04 16:25:20 +0200 | [diff] [blame] | 303 | mForceClockInterface = true; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 304 | mOn = true; |
| 305 | return true; |
| 306 | } |
| 307 | |
| 308 | /* |
| 309 | * Stop the transceiver |
| 310 | * |
| 311 | * Perform stopping by disabling receive streaming and issuing cancellation |
| 312 | * requests to running threads. Most threads will timeout and terminate once |
| 313 | * device is disabled, but the transmit loop may block waiting on the central |
| 314 | * UMTS clock. Explicitly signal the clock to make sure that the transmit loop |
| 315 | * makes it to the thread cancellation point. |
| 316 | */ |
| 317 | void Transceiver::stop() |
| 318 | { |
| 319 | ScopedLock lock(mLock); |
| 320 | |
| 321 | if (!mOn) |
| 322 | return; |
| 323 | |
| 324 | LOG(NOTICE) << "Stopping the transceiver"; |
| 325 | mTxLowerLoopThread->cancel(); |
| 326 | mRxLowerLoopThread->cancel(); |
Tom Tsou | d67bd60 | 2017-06-15 15:35:02 -0700 | [diff] [blame] | 327 | mTxLowerLoopThread->join(); |
| 328 | mRxLowerLoopThread->join(); |
| 329 | delete mTxLowerLoopThread; |
| 330 | delete mRxLowerLoopThread; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 331 | |
| 332 | for (size_t i = 0; i < mChans; i++) { |
| 333 | mRxServiceLoopThreads[i]->cancel(); |
| 334 | mTxPriorityQueueServiceLoopThreads[i]->cancel(); |
| 335 | } |
| 336 | |
| 337 | LOG(INFO) << "Stopping the device"; |
| 338 | mRadioInterface->stop(); |
| 339 | |
| 340 | for (size_t i = 0; i < mChans; i++) { |
| 341 | mRxServiceLoopThreads[i]->join(); |
| 342 | mTxPriorityQueueServiceLoopThreads[i]->join(); |
| 343 | delete mRxServiceLoopThreads[i]; |
| 344 | delete mTxPriorityQueueServiceLoopThreads[i]; |
| 345 | |
| 346 | mTxPriorityQueues[i].clear(); |
| 347 | } |
| 348 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 349 | mOn = false; |
| 350 | LOG(NOTICE) << "Transceiver stopped"; |
| 351 | } |
| 352 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 353 | void Transceiver::addRadioVector(size_t chan, BitVector &bits, |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 354 | int RSSI, GSM::Time &wTime) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 355 | { |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 356 | signalVector *burst; |
| 357 | radioVector *radio_burst; |
| 358 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 359 | if (chan >= mTxPriorityQueues.size()) { |
| 360 | LOG(ALERT) << "Invalid channel " << chan; |
| 361 | return; |
| 362 | } |
| 363 | |
Thomas Tsou | 2d0c00b | 2013-11-14 15:28:23 -0500 | [diff] [blame] | 364 | if (wTime.TN() > 7) { |
| 365 | LOG(ALERT) << "Received burst with invalid slot " << wTime.TN(); |
| 366 | return; |
| 367 | } |
| 368 | |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 369 | /* Use the number of bits as the EDGE burst indicator */ |
| 370 | if (bits.size() == EDGE_BURST_NBITS) |
| 371 | burst = modulateEdgeBurst(bits, mSPSTx); |
| 372 | else |
| 373 | burst = modulateBurst(bits, 8 + (wTime.TN() % 4 == 0), mSPSTx); |
| 374 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 375 | scaleVector(*burst, txFullScale * pow(10, -RSSI / 10)); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 376 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 377 | radio_burst = new radioVector(wTime, burst); |
| 378 | |
| 379 | mTxPriorityQueues[chan].write(radio_burst); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 380 | } |
| 381 | |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 382 | void Transceiver::updateFillerTable(size_t chan, radioVector *burst) |
| 383 | { |
| 384 | int TN, modFN; |
| 385 | TransceiverState *state = &mStates[chan]; |
| 386 | |
| 387 | TN = burst->getTime().TN(); |
| 388 | modFN = burst->getTime().FN() % state->fillerModulus[TN]; |
| 389 | |
| 390 | delete state->fillerTable[modFN][TN]; |
| 391 | state->fillerTable[modFN][TN] = burst->getVector(); |
| 392 | burst->setVector(NULL); |
| 393 | } |
| 394 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 395 | void Transceiver::pushRadioVector(GSM::Time &nowTime) |
| 396 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 397 | int TN, modFN; |
| 398 | radioVector *burst; |
| 399 | TransceiverState *state; |
| 400 | std::vector<signalVector *> bursts(mChans); |
| 401 | std::vector<bool> zeros(mChans); |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 402 | std::vector<bool> filler(mChans, true); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 403 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 404 | for (size_t i = 0; i < mChans; i ++) { |
| 405 | state = &mStates[i]; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 406 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 407 | while ((burst = mTxPriorityQueues[i].getStaleBurst(nowTime))) { |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 408 | LOGCHAN(i, DMAIN, NOTICE) << "dumping STALE burst in TRX->SDR interface (" |
Pau Espin Pedrol | f37b0ad | 2018-04-25 18:01:27 +0200 | [diff] [blame] | 409 | << burst->getTime() <<" vs " << nowTime << "), retrans=" << state->mRetrans; |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 410 | if (state->mRetrans) |
| 411 | updateFillerTable(i, burst); |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 412 | delete burst; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 413 | } |
| 414 | |
| 415 | TN = nowTime.TN(); |
| 416 | modFN = nowTime.FN() % state->fillerModulus[TN]; |
| 417 | |
| 418 | bursts[i] = state->fillerTable[modFN][TN]; |
| 419 | zeros[i] = state->chanType[TN] == NONE; |
| 420 | |
| 421 | if ((burst = mTxPriorityQueues[i].getCurrentBurst(nowTime))) { |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 422 | bursts[i] = burst->getVector(); |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 423 | |
| 424 | if (state->mRetrans) { |
| 425 | updateFillerTable(i, burst); |
| 426 | } else { |
| 427 | burst->setVector(NULL); |
| 428 | filler[i] = false; |
| 429 | } |
| 430 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 431 | delete burst; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 432 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 433 | } |
| 434 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 435 | mRadioInterface->driveTransmitRadio(bursts, zeros); |
| 436 | |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 437 | for (size_t i = 0; i < mChans; i++) { |
| 438 | if (!filler[i]) |
| 439 | delete bursts[i]; |
| 440 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 441 | } |
| 442 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 443 | void Transceiver::setModulus(size_t timeslot, size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 444 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 445 | TransceiverState *state = &mStates[chan]; |
| 446 | |
| 447 | switch (state->chanType[timeslot]) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 448 | case NONE: |
| 449 | case I: |
| 450 | case II: |
| 451 | case III: |
| 452 | case FILL: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 453 | state->fillerModulus[timeslot] = 26; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 454 | break; |
| 455 | case IV: |
| 456 | case VI: |
| 457 | case V: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 458 | state->fillerModulus[timeslot] = 51; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 459 | break; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 460 | //case V: |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 461 | case VII: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 462 | state->fillerModulus[timeslot] = 102; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 463 | break; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 464 | case XIII: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 465 | state->fillerModulus[timeslot] = 52; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 466 | break; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 467 | default: |
| 468 | break; |
| 469 | } |
| 470 | } |
| 471 | |
| 472 | |
Alexander Chemeris | f9e78be | 2017-03-17 15:00:34 -0700 | [diff] [blame] | 473 | CorrType Transceiver::expectedCorrType(GSM::Time currTime, |
| 474 | size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 475 | { |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 476 | static int tchh_subslot[26] = { 0,1,0,1,0,1,0,1,0,1,0,1,0,0,1,0,1,0,1,0,1,0,1,0,1,1 }; |
| 477 | static int sdcch4_subslot[102] = { 3,3,3,3,0,0,2,2,2,2,3,3,3,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,0,0,2,2,2,2, |
| 478 | 3,3,3,3,0,0,0,0,0,0,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,0,0,2,2,2,2 }; |
| 479 | static int sdcch8_subslot[102] = { 5,5,5,5,6,6,6,6,7,7,7,7,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,6,6,6,6,7,7,7,7,0,0,0,0, |
| 480 | 1,1,1,1,2,2,2,2,3,3,3,3,0,0,0,0,0,0,0,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,5,6,6,6,6,7,7,7,7,4,4,4,4 }; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 481 | TransceiverState *state = &mStates[chan]; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 482 | unsigned burstTN = currTime.TN(); |
| 483 | unsigned burstFN = currTime.FN(); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 484 | int subch; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 485 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 486 | switch (state->chanType[burstTN]) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 487 | case NONE: |
| 488 | return OFF; |
| 489 | break; |
| 490 | case FILL: |
| 491 | return IDLE; |
| 492 | break; |
| 493 | case I: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 494 | // TODO: Are we expecting RACH on an IDLE frame? |
| 495 | /* if (burstFN % 26 == 25) |
| 496 | return IDLE;*/ |
| 497 | if (mHandover[burstTN][0]) |
| 498 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 499 | return TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 500 | break; |
| 501 | case II: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 502 | subch = tchh_subslot[burstFN % 26]; |
| 503 | if (subch == 1) |
| 504 | return IDLE; |
| 505 | if (mHandover[burstTN][0]) |
| 506 | return RACH; |
ttsou | 2064297 | 2013-03-27 22:00:25 +0000 | [diff] [blame] | 507 | return TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 508 | break; |
| 509 | case III: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 510 | subch = tchh_subslot[burstFN % 26]; |
| 511 | if (mHandover[burstTN][subch]) |
| 512 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 513 | return TSC; |
| 514 | break; |
| 515 | case IV: |
| 516 | case VI: |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 517 | return mExtRACH ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 518 | break; |
| 519 | case V: { |
| 520 | int mod51 = burstFN % 51; |
| 521 | if ((mod51 <= 36) && (mod51 >= 14)) |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 522 | return mExtRACH ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 523 | else if ((mod51 == 4) || (mod51 == 5)) |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 524 | return mExtRACH ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 525 | else if ((mod51 == 45) || (mod51 == 46)) |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 526 | return mExtRACH ? EXT_RACH : RACH; |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 527 | else if (mHandover[burstTN][sdcch4_subslot[burstFN % 102]]) |
| 528 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 529 | else |
| 530 | return TSC; |
| 531 | break; |
| 532 | } |
| 533 | case VII: |
| 534 | if ((burstFN % 51 <= 14) && (burstFN % 51 >= 12)) |
| 535 | return IDLE; |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 536 | else if (mHandover[burstTN][sdcch8_subslot[burstFN % 102]]) |
| 537 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 538 | else |
| 539 | return TSC; |
| 540 | break; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 541 | case XIII: { |
| 542 | int mod52 = burstFN % 52; |
| 543 | if ((mod52 == 12) || (mod52 == 38)) |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 544 | return mExtRACH ? EXT_RACH : RACH; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 545 | else if ((mod52 == 25) || (mod52 == 51)) |
| 546 | return IDLE; |
| 547 | else |
| 548 | return TSC; |
| 549 | break; |
| 550 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 551 | case LOOPBACK: |
| 552 | if ((burstFN % 51 <= 50) && (burstFN % 51 >=48)) |
| 553 | return IDLE; |
| 554 | else |
| 555 | return TSC; |
| 556 | break; |
| 557 | default: |
| 558 | return OFF; |
| 559 | break; |
| 560 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 561 | } |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 562 | |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 563 | void writeToFile(radioVector *radio_burst, size_t chan) |
| 564 | { |
| 565 | GSM::Time time = radio_burst->getTime(); |
| 566 | std::ostringstream fname; |
| 567 | fname << chan << "_" << time.FN() << "_" << time.TN() << ".fc"; |
| 568 | std::ofstream outfile (fname.str().c_str(), std::ofstream::binary); |
| 569 | outfile.write((char*)radio_burst->getVector()->begin(), radio_burst->getVector()->size() * 2 * sizeof(float)); |
| 570 | outfile.close(); |
| 571 | } |
| 572 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 573 | /* |
| 574 | * Pull bursts from the FIFO and handle according to the slot |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 575 | * and burst correlation type. Equalzation is currently disabled. |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 576 | */ |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 577 | bool Transceiver::pullRadioVector(size_t chan, struct trx_ul_burst_ind *bi) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 578 | { |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 579 | int rc; |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 580 | struct estim_burst_params ebp; |
| 581 | float max = -1.0, avg = 0.0; |
Pau Espin Pedrol | 9bb24a1 | 2019-07-03 15:43:03 +0200 | [diff] [blame] | 582 | unsigned max_toa; |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 583 | int max_i = -1; |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 584 | signalVector *burst; |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 585 | GSM::Time burstTime; |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 586 | SoftVector *rxBurst; |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 587 | TransceiverState *state = &mStates[chan]; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 588 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 589 | /* Blocking FIFO read */ |
| 590 | radioVector *radio_burst = mReceiveFIFO[chan]->read(); |
| 591 | if (!radio_burst) |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 592 | return false; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 593 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 594 | /* Set time and determine correlation type */ |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 595 | burstTime = radio_burst->getTime(); |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 596 | CorrType type = expectedCorrType(burstTime, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 597 | |
Tom Tsou | 64464e6 | 2016-07-01 03:46:46 -0700 | [diff] [blame] | 598 | /* Enable 8-PSK burst detection if EDGE is enabled */ |
| 599 | if (mEdge && (type == TSC)) |
| 600 | type = EDGE; |
| 601 | |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 602 | /* Debug: dump bursts to disk */ |
| 603 | /* bits 0-7 - chan 0 timeslots |
| 604 | * bits 8-15 - chan 1 timeslots */ |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 605 | if (mWriteBurstToDiskMask & ((1<<bi->tn) << (8*chan))) |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 606 | writeToFile(radio_burst, chan); |
| 607 | |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 608 | /* No processing if the timeslot is off. |
| 609 | * Not even power level or noise calculation. */ |
| 610 | if (type == OFF) { |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 611 | delete radio_burst; |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 612 | return false; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 613 | } |
kurtis.heimerl | 3ed6fb7 | 2011-11-26 03:17:52 +0000 | [diff] [blame] | 614 | |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 615 | /* Initialize struct bi */ |
| 616 | bi->nbits = 0; |
| 617 | bi->fn = burstTime.FN(); |
| 618 | bi->tn = burstTime.TN(); |
| 619 | bi->rssi = 0.0; |
| 620 | bi->toa = 0.0; |
| 621 | bi->noise = 0.0; |
| 622 | bi->idle = false; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 623 | bi->modulation = MODULATION_GMSK; |
| 624 | bi->tss = 0; /* TODO: we only support tss 0 right now */ |
| 625 | bi->tsc = 0; |
| 626 | bi->ci = 0.0; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 627 | |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 628 | /* Select the diversity channel with highest energy */ |
| 629 | for (size_t i = 0; i < radio_burst->chans(); i++) { |
Alexander Chemeris | 1dd05cf | 2017-03-15 23:23:36 +0300 | [diff] [blame] | 630 | float pow = energyDetect(*radio_burst->getVector(i), 20 * mSPSRx); |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 631 | if (pow > max) { |
| 632 | max = pow; |
| 633 | max_i = i; |
| 634 | } |
| 635 | avg += pow; |
| 636 | } |
| 637 | |
| 638 | if (max_i < 0) { |
| 639 | LOG(ALERT) << "Received empty burst"; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 640 | goto ret_idle; |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 641 | } |
| 642 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 643 | /* Average noise on diversity paths and update global levels */ |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 644 | burst = radio_burst->getVector(max_i); |
Thomas Tsou | ef25dba | 2013-11-14 15:31:24 -0500 | [diff] [blame] | 645 | avg = sqrt(avg / radio_burst->chans()); |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 646 | |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 647 | if (type == IDLE) { |
| 648 | /* Update noise levels */ |
| 649 | state->mNoises.insert(avg); |
| 650 | state->mNoiseLev = state->mNoises.avg(); |
Pau Espin Pedrol | be9cd66 | 2019-07-03 15:00:56 +0200 | [diff] [blame] | 651 | } |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 652 | |
Pau Espin Pedrol | be9cd66 | 2019-07-03 15:00:56 +0200 | [diff] [blame] | 653 | bi->rssi = 20.0 * log10(rxFullScale / avg) + rssiOffset; |
| 654 | bi->noise = 20.0 * log10(rxFullScale / state->mNoiseLev) + rssiOffset; |
| 655 | |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 656 | if (type == IDLE) |
| 657 | goto ret_idle; |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 658 | |
Pau Espin Pedrol | 9bb24a1 | 2019-07-03 15:43:03 +0200 | [diff] [blame] | 659 | max_toa = (type == RACH || type == EXT_RACH) ? |
| 660 | mMaxExpectedDelayAB : mMaxExpectedDelayNB; |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 661 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 662 | /* Detect normal or RACH bursts */ |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 663 | rc = detectAnyBurst(*burst, mTSC, BURST_THRESH, mSPSRx, type, max_toa, &ebp); |
Pau Espin Pedrol | d6dbb1b | 2019-07-03 15:23:56 +0200 | [diff] [blame] | 664 | if (rc <= 0) { |
| 665 | if (rc == -SIGERR_CLIP) |
Alexander Chemeris | 954b118 | 2015-06-04 15:39:41 -0400 | [diff] [blame] | 666 | LOG(WARNING) << "Clipping detected on received RACH or Normal Burst"; |
Pau Espin Pedrol | d6dbb1b | 2019-07-03 15:23:56 +0200 | [diff] [blame] | 667 | else if (rc != SIGERR_NONE) |
Alexander Chemeris | 954b118 | 2015-06-04 15:39:41 -0400 | [diff] [blame] | 668 | LOG(WARNING) << "Unhandled RACH or Normal Burst detection error"; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 669 | goto ret_idle; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 670 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 671 | |
Pau Espin Pedrol | d6dbb1b | 2019-07-03 15:23:56 +0200 | [diff] [blame] | 672 | type = (CorrType) rc; |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 673 | bi->toa = ebp.toa; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 674 | bi->tsc = ebp.tsc; |
| 675 | bi->ci = ebp.ci; |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 676 | rxBurst = demodAnyBurst(*burst, mSPSRx, ebp.amp, ebp.toa, type); |
Thomas Tsou | ef25dba | 2013-11-14 15:31:24 -0500 | [diff] [blame] | 677 | |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 678 | /* EDGE demodulator returns 444 (gSlotLen * 3) bits */ |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 679 | if (rxBurst->size() == EDGE_BURST_NBITS) { |
| 680 | bi->modulation = MODULATION_8PSK; |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 681 | bi->nbits = EDGE_BURST_NBITS; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 682 | } else { /* size() here is actually gSlotLen + 8, due to guard periods */ |
| 683 | bi->modulation = MODULATION_GMSK; |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 684 | bi->nbits = gSlotLen; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 685 | } |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 686 | |
Pau Espin Pedrol | 25ae190 | 2019-07-01 16:40:44 +0200 | [diff] [blame] | 687 | // Convert -1..+1 soft bits to 0..1 soft bits |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 688 | vectorSlicer(bi->rx_burst, rxBurst->begin(), bi->nbits); |
Pau Espin Pedrol | 25ae190 | 2019-07-01 16:40:44 +0200 | [diff] [blame] | 689 | |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 690 | delete rxBurst; |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 691 | delete radio_burst; |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 692 | return true; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 693 | |
| 694 | ret_idle: |
| 695 | bi->idle = true; |
| 696 | delete radio_burst; |
| 697 | return false; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 698 | } |
| 699 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 700 | void Transceiver::reset() |
| 701 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 702 | for (size_t i = 0; i < mTxPriorityQueues.size(); i++) |
| 703 | mTxPriorityQueues[i].clear(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 704 | } |
| 705 | |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 706 | |
Vadim Yanitskiy | bd0efb0 | 2018-03-09 02:45:07 +0700 | [diff] [blame] | 707 | #define MAX_PACKET_LENGTH 100 |
| 708 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 709 | /** |
| 710 | * Matches a buffer with a command. |
| 711 | * @param buf a buffer to look command in |
| 712 | * @param cmd a command to look in buffer |
| 713 | * @param params pointer to arguments, or NULL |
| 714 | * @return true if command matches, otherwise false |
| 715 | */ |
| 716 | static bool match_cmd(char *buf, |
| 717 | const char *cmd, char **params) |
| 718 | { |
| 719 | size_t cmd_len = strlen(cmd); |
| 720 | |
| 721 | /* Check a command itself */ |
| 722 | if (strncmp(buf, cmd, cmd_len)) |
| 723 | return false; |
| 724 | |
| 725 | /* A command has arguments */ |
| 726 | if (params != NULL) { |
| 727 | /* Make sure there is a space */ |
| 728 | if (buf[cmd_len] != ' ') |
| 729 | return false; |
| 730 | |
| 731 | /* Update external pointer */ |
| 732 | *params = buf + cmd_len + 1; |
| 733 | } |
| 734 | |
| 735 | return true; |
| 736 | } |
| 737 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 738 | void Transceiver::driveControl(size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 739 | { |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 740 | char buffer[MAX_PACKET_LENGTH + 1]; |
| 741 | char response[MAX_PACKET_LENGTH + 1]; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 742 | char *command, *params; |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 743 | int msgLen; |
Thomas Tsou | d647ec5 | 2013-10-29 15:17:34 -0400 | [diff] [blame] | 744 | |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 745 | /* Attempt to read from control socket */ |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 746 | msgLen = read(mCtrlSockets[chan], buffer, MAX_PACKET_LENGTH); |
| 747 | if (msgLen <= 0) { |
| 748 | LOGCHAN(chan, DTRXCTRL, WARNING) << "mCtrlSockets read(" << mCtrlSockets[chan] << ") failed: " << msgLen; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 749 | return; |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 750 | } |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 751 | |
| 752 | /* Zero-terminate received string */ |
| 753 | buffer[msgLen] = '\0'; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 754 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 755 | /* Verify a command signature */ |
| 756 | if (strncmp(buffer, "CMD ", 4)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 757 | LOGC(DTRXCTRL, WARNING) << "bogus message on control interface"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 758 | return; |
| 759 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 760 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 761 | /* Set command pointer */ |
| 762 | command = buffer + 4; |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 763 | LOGCHAN(chan, DTRXCTRL, INFO) << "command is '" << command << "'"; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 764 | |
| 765 | if (match_cmd(command, "POWEROFF", NULL)) { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 766 | stop(); |
| 767 | sprintf(response,"RSP POWEROFF 0"); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 768 | } else if (match_cmd(command, "POWERON", NULL)) { |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 769 | if (!start()) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 770 | sprintf(response,"RSP POWERON 1"); |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 771 | } else { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 772 | sprintf(response,"RSP POWERON 0"); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 773 | for (int i = 0; i < 8; i++) { |
| 774 | for (int j = 0; j < 8; j++) |
| 775 | mHandover[i][j] = false; |
| 776 | } |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 777 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 778 | } else if (match_cmd(command, "HANDOVER", ¶ms)) { |
Vadim Yanitskiy | c0c6d70 | 2018-03-09 05:08:23 +0700 | [diff] [blame] | 779 | unsigned ts = 0, ss = 0; |
| 780 | sscanf(params, "%u %u", &ts, &ss); |
| 781 | if (ts > 7 || ss > 7) { |
| 782 | sprintf(response, "RSP NOHANDOVER 1 %u %u", ts, ss); |
| 783 | } else { |
| 784 | mHandover[ts][ss] = true; |
| 785 | sprintf(response, "RSP HANDOVER 0 %u %u", ts, ss); |
| 786 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 787 | } else if (match_cmd(command, "NOHANDOVER", ¶ms)) { |
Vadim Yanitskiy | c0c6d70 | 2018-03-09 05:08:23 +0700 | [diff] [blame] | 788 | unsigned ts = 0, ss = 0; |
| 789 | sscanf(params, "%u %u", &ts, &ss); |
| 790 | if (ts > 7 || ss > 7) { |
| 791 | sprintf(response, "RSP NOHANDOVER 1 %u %u", ts, ss); |
| 792 | } else { |
| 793 | mHandover[ts][ss] = false; |
| 794 | sprintf(response, "RSP NOHANDOVER 0 %u %u", ts, ss); |
| 795 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 796 | } else if (match_cmd(command, "SETMAXDLY", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 797 | //set expected maximum time-of-arrival |
| 798 | int maxDelay; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 799 | sscanf(params, "%d", &maxDelay); |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 800 | mMaxExpectedDelayAB = maxDelay; // 1 GSM symbol is approx. 1 km |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 801 | sprintf(response,"RSP SETMAXDLY 0 %d",maxDelay); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 802 | } else if (match_cmd(command, "SETMAXDLYNB", ¶ms)) { |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 803 | //set expected maximum time-of-arrival |
| 804 | int maxDelay; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 805 | sscanf(params, "%d", &maxDelay); |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 806 | mMaxExpectedDelayNB = maxDelay; // 1 GSM symbol is approx. 1 km |
| 807 | sprintf(response,"RSP SETMAXDLYNB 0 %d",maxDelay); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 808 | } else if (match_cmd(command, "SETRXGAIN", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 809 | //set expected maximum time-of-arrival |
| 810 | int newGain; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 811 | sscanf(params, "%d", &newGain); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 812 | newGain = mRadioInterface->setRxGain(newGain, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 813 | sprintf(response,"RSP SETRXGAIN 0 %d",newGain); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 814 | } else if (match_cmd(command, "NOISELEV", NULL)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 815 | if (mOn) { |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 816 | float lev = mStates[chan].mNoiseLev; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 817 | sprintf(response,"RSP NOISELEV 0 %d", |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 818 | (int) round(20.0 * log10(rxFullScale / lev))); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 819 | } |
| 820 | else { |
| 821 | sprintf(response,"RSP NOISELEV 1 0"); |
| 822 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 823 | } else if (match_cmd(command, "SETPOWER", ¶ms)) { |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 824 | int power; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 825 | sscanf(params, "%d", &power); |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 826 | power = mRadioInterface->setPowerAttenuation(power, chan); |
| 827 | mStates[chan].mPower = power; |
| 828 | sprintf(response, "RSP SETPOWER 0 %d", power); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 829 | } else if (match_cmd(command, "ADJPOWER", ¶ms)) { |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 830 | int power, step; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 831 | sscanf(params, "%d", &step); |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 832 | power = mStates[chan].mPower + step; |
| 833 | power = mRadioInterface->setPowerAttenuation(power, chan); |
| 834 | mStates[chan].mPower = power; |
| 835 | sprintf(response, "RSP ADJPOWER 0 %d", power); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 836 | } else if (match_cmd(command, "RXTUNE", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 837 | // tune receiver |
| 838 | int freqKhz; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 839 | sscanf(params, "%d", &freqKhz); |
Thomas Tsou | 477b77c | 2013-11-15 16:13:59 -0500 | [diff] [blame] | 840 | mRxFreq = freqKhz * 1e3; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 841 | if (!mRadioInterface->tuneRx(mRxFreq, chan)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 842 | LOGC(DTRXCTRL, ALERT) << "RX failed to tune"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 843 | sprintf(response,"RSP RXTUNE 1 %d",freqKhz); |
| 844 | } |
| 845 | else |
| 846 | sprintf(response,"RSP RXTUNE 0 %d",freqKhz); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 847 | } else if (match_cmd(command, "TXTUNE", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 848 | // tune txmtr |
| 849 | int freqKhz; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 850 | sscanf(params, "%d", &freqKhz); |
Thomas Tsou | 477b77c | 2013-11-15 16:13:59 -0500 | [diff] [blame] | 851 | mTxFreq = freqKhz * 1e3; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 852 | if (!mRadioInterface->tuneTx(mTxFreq, chan)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 853 | LOGC(DTRXCTRL, ALERT) << "TX failed to tune"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 854 | sprintf(response,"RSP TXTUNE 1 %d",freqKhz); |
| 855 | } |
| 856 | else |
| 857 | sprintf(response,"RSP TXTUNE 0 %d",freqKhz); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 858 | } else if (match_cmd(command, "SETTSC", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 859 | // set TSC |
Thomas Tsou | 3f32ab5 | 2013-11-15 16:32:54 -0500 | [diff] [blame] | 860 | unsigned TSC; |
Vadim Yanitskiy | 8c6c5d2 | 2018-03-09 05:01:21 +0700 | [diff] [blame] | 861 | sscanf(params, "%u", &TSC); |
Tom Tsou | 6031734 | 2017-03-30 19:36:41 -0700 | [diff] [blame] | 862 | if (TSC > 7) { |
Thomas Tsou | d3fccea | 2013-11-15 14:22:53 -0500 | [diff] [blame] | 863 | sprintf(response, "RSP SETTSC 1 %d", TSC); |
Tom Tsou | 6031734 | 2017-03-30 19:36:41 -0700 | [diff] [blame] | 864 | } else { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 865 | LOGC(DTRXCTRL, NOTICE) << "Changing TSC from " << mTSC << " to " << TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 866 | mTSC = TSC; |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 867 | sprintf(response,"RSP SETTSC 0 %d", TSC); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 868 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 869 | } else if (match_cmd(command, "SETSLOT", ¶ms)) { |
Alexander Chemeris | 1fe5282 | 2015-05-20 12:02:29 -0700 | [diff] [blame] | 870 | // set slot type |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 871 | int corrCode; |
| 872 | int timeslot; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 873 | sscanf(params, "%d %d", ×lot, &corrCode); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 874 | if ((timeslot < 0) || (timeslot > 7)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 875 | LOGC(DTRXCTRL, WARNING) << "bogus message on control interface"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 876 | sprintf(response,"RSP SETSLOT 1 %d %d",timeslot,corrCode); |
| 877 | return; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 878 | } |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 879 | mStates[chan].chanType[timeslot] = (ChannelCombination) corrCode; |
| 880 | setModulus(timeslot, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 881 | sprintf(response,"RSP SETSLOT 0 %d %d",timeslot,corrCode); |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 882 | } else if (match_cmd(command, "SETFORMAT", ¶ms)) { |
| 883 | // set TRXD protocol version |
| 884 | unsigned version_recv; |
| 885 | sscanf(params, "%u", &version_recv); |
| 886 | LOGC(DTRXCTRL, INFO) << "BTS requests TRXD version switch: " << version_recv; |
| 887 | if (version_recv > TRX_DATA_FORMAT_VER) { |
| 888 | LOGC(DTRXCTRL, INFO) << "rejecting TRXD version " << version_recv |
| 889 | << "in favor of " << TRX_DATA_FORMAT_VER; |
| 890 | sprintf(response, "RSP SETFORMAT %u %u", TRX_DATA_FORMAT_VER, version_recv); |
| 891 | } else { |
| 892 | LOGC(DTRXCTRL, NOTICE) << "switching to TRXD version " << version_recv; |
| 893 | mVersionTRXD = version_recv; |
| 894 | sprintf(response, "RSP SETFORMAT %u %u", version_recv, version_recv); |
| 895 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 896 | } else if (match_cmd(command, "_SETBURSTTODISKMASK", ¶ms)) { |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 897 | // debug command! may change or disapear without notice |
| 898 | // set a mask which bursts to dump to disk |
| 899 | int mask; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 900 | sscanf(params, "%d", &mask); |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 901 | mWriteBurstToDiskMask = mask; |
| 902 | sprintf(response,"RSP _SETBURSTTODISKMASK 0 %d",mask); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 903 | } else { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 904 | LOGC(DTRXCTRL, WARNING) << "bogus command " << command << " on control interface."; |
Alexander Chemeris | 4438a9f | 2013-04-08 00:14:08 +0200 | [diff] [blame] | 905 | sprintf(response,"RSP ERR 1"); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 906 | } |
| 907 | |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 908 | LOGCHAN(chan, DTRXCTRL, INFO) << "response is '" << response << "'"; |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 909 | msgLen = write(mCtrlSockets[chan], response, strlen(response) + 1); |
| 910 | if (msgLen <= 0) |
| 911 | LOGCHAN(chan, DTRXCTRL, WARNING) << "mCtrlSockets write(" << mCtrlSockets[chan] << ") failed: " << msgLen; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 912 | } |
| 913 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 914 | bool Transceiver::driveTxPriorityQueue(size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 915 | { |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 916 | int msgLen; |
Tom Tsou | e887108 | 2016-07-01 02:46:04 -0700 | [diff] [blame] | 917 | int burstLen; |
| 918 | char buffer[EDGE_BURST_NBITS + 50]; |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 919 | struct trxd_hdr_common *chdr; |
| 920 | uint32_t fn; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 921 | |
| 922 | // check data socket |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 923 | msgLen = read(mDataSockets[chan], buffer, sizeof(buffer)); |
| 924 | if (msgLen <= 0) { |
| 925 | LOGCHAN(chan, DTRXCTRL, WARNING) << "mDataSockets read(" << mCtrlSockets[chan] << ") failed: " << msgLen; |
| 926 | return false; |
| 927 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 928 | |
Tom Tsou | e887108 | 2016-07-01 02:46:04 -0700 | [diff] [blame] | 929 | if (msgLen == gSlotLen + 1 + 4 + 1) { |
| 930 | burstLen = gSlotLen; |
| 931 | } else if (msgLen == EDGE_BURST_NBITS + 1 + 4 + 1) { |
| 932 | if (mSPSTx != 4) |
| 933 | return false; |
| 934 | |
| 935 | burstLen = EDGE_BURST_NBITS; |
| 936 | } else { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 937 | LOG(ERR) << "badly formatted packet on GSM->TRX interface"; |
| 938 | return false; |
| 939 | } |
| 940 | |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 941 | /* Common header part: HDR version, TDMA TN & FN */ |
| 942 | chdr = (struct trxd_hdr_common *) buffer; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 943 | |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 944 | /* Convert TDMA FN to the host endianness */ |
| 945 | fn = osmo_load32be(&chdr->fn); |
| 946 | |
Vadim Yanitskiy | dd571c6 | 2019-07-15 23:56:56 +0700 | [diff] [blame] | 947 | /* Make sure we support the received header format */ |
| 948 | switch (chdr->version) { |
| 949 | case 0: |
| 950 | /* Version 1 has the same format */ |
| 951 | case 1: |
| 952 | break; |
| 953 | |
| 954 | default: |
| 955 | LOG(ERR) << "Rx TRXD message with unknown header version " << chdr->version; |
| 956 | return false; |
| 957 | } |
| 958 | |
Vadim Yanitskiy | 56c5f29 | 2019-07-16 00:02:56 +0700 | [diff] [blame] | 959 | LOG(DEBUG) << "Rx TRXD message (hdr_ver=" << chdr->version << "): " |
| 960 | << "fn=" << fn << ", tn=" << chdr->tn << ", " |
| 961 | << "burst_len=" << burstLen; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 962 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 963 | int RSSI = (int) buffer[5]; |
Tom Tsou | 7c741ec | 2016-07-19 11:20:59 -0700 | [diff] [blame] | 964 | BitVector newBurst(burstLen); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 965 | BitVector::iterator itr = newBurst.begin(); |
| 966 | char *bufferItr = buffer+6; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 967 | while (itr < newBurst.end()) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 968 | *itr++ = *bufferItr++; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 969 | |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 970 | GSM::Time currTime = GSM::Time(fn, chdr->tn); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 971 | |
| 972 | addRadioVector(chan, newBurst, RSSI, currTime); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 973 | |
| 974 | return true; |
| 975 | |
| 976 | |
| 977 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 978 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 979 | void Transceiver::driveReceiveRadio() |
| 980 | { |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 981 | int rc = mRadioInterface->driveReceiveRadio(); |
| 982 | if (rc == 0) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 983 | usleep(100000); |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 984 | } else if (rc < 0) { |
| 985 | LOG(FATAL) << "radio Interface receive failed, requesting stop."; |
Pau Espin Pedrol | b426e4a | 2019-06-04 12:39:28 +0200 | [diff] [blame] | 986 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
Pau Espin Pedrol | 934da48 | 2017-07-04 16:25:20 +0200 | [diff] [blame] | 987 | } else if (mForceClockInterface || mTransmitDeadlineClock > mLastClockUpdateTime + GSM::Time(216,0)) { |
| 988 | mForceClockInterface = false; |
| 989 | writeClockInterface(); |
Alexander Chemeris | 6a2bf0d | 2015-05-24 19:28:09 -0400 | [diff] [blame] | 990 | } |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 991 | } |
| 992 | |
Pau Espin Pedrol | 607a414 | 2019-07-01 13:56:17 +0200 | [diff] [blame] | 993 | void Transceiver::logRxBurst(size_t chan, const struct trx_ul_burst_ind *bi) |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 994 | { |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 995 | std::ostringstream os; |
| 996 | for (size_t i=0; i < bi->nbits; i++) { |
| 997 | if (bi->rx_burst[i] > 0.5) os << "1"; |
| 998 | else if (bi->rx_burst[i] > 0.25) os << "|"; |
| 999 | else if (bi->rx_burst[i] > 0.0) os << "'"; |
| 1000 | else os << "-"; |
| 1001 | } |
| 1002 | |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 1003 | LOG(DEBUG) << std::fixed << std::right |
Alexander Chemeris | 58e9591 | 2016-03-25 18:20:28 +0300 | [diff] [blame] | 1004 | << " chan: " << chan |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 1005 | << " time: " << bi->tn << ":" << bi->fn |
Pau Espin Pedrol | 607a414 | 2019-07-01 13:56:17 +0200 | [diff] [blame] | 1006 | << " RSSI: " << std::setw(5) << std::setprecision(1) << (bi->rssi - rssiOffset) |
| 1007 | << "dBFS/" << std::setw(6) << -bi->rssi << "dBm" |
| 1008 | << " noise: " << std::setw(5) << std::setprecision(1) << (bi->noise - rssiOffset) |
| 1009 | << "dBFS/" << std::setw(6) << -bi->noise << "dBm" |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1010 | << " TOA: " << std::setw(5) << std::setprecision(2) << bi->toa |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 1011 | << " C/I: " << std::setw(5) << std::setprecision(2) << bi->ci << "dB" |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 1012 | << " bits: " << os; |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 1013 | } |
| 1014 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1015 | void Transceiver::driveReceiveFIFO(size_t chan) |
| 1016 | { |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1017 | struct trx_ul_burst_ind bi; |
| 1018 | |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1019 | if (!pullRadioVector(chan, &bi)) |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1020 | return; |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1021 | if (!bi.idle) |
| 1022 | logRxBurst(chan, &bi); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1023 | |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1024 | switch (mVersionTRXD) { |
| 1025 | case 0: |
| 1026 | trxd_send_burst_ind_v0(chan, mDataSockets[chan], &bi); |
| 1027 | break; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 1028 | case 1: |
| 1029 | trxd_send_burst_ind_v1(chan, mDataSockets[chan], &bi); |
| 1030 | break; |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1031 | default: |
| 1032 | OSMO_ASSERT(false); |
| 1033 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1034 | } |
| 1035 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1036 | void Transceiver::driveTxFIFO() |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1037 | { |
| 1038 | |
| 1039 | /** |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1040 | Features a carefully controlled latency mechanism, to |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1041 | assure that transmit packets arrive at the radio/USRP |
| 1042 | before they need to be transmitted. |
| 1043 | |
| 1044 | Deadline clock indicates the burst that needs to be |
| 1045 | pushed into the FIFO right NOW. If transmit queue does |
| 1046 | not have a burst, stick in filler data. |
| 1047 | */ |
| 1048 | |
| 1049 | |
| 1050 | RadioClock *radioClock = (mRadioInterface->getClock()); |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1051 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1052 | if (mOn) { |
| 1053 | //radioClock->wait(); // wait until clock updates |
| 1054 | LOG(DEBUG) << "radio clock " << radioClock->get(); |
| 1055 | while (radioClock->get() + mTransmitLatency > mTransmitDeadlineClock) { |
| 1056 | // if underrun, then we're not providing bursts to radio/USRP fast |
| 1057 | // enough. Need to increase latency by one GSM frame. |
Thomas Tsou | 02d88d1 | 2013-04-05 15:36:30 -0400 | [diff] [blame] | 1058 | if (mRadioInterface->getWindowType() == RadioDevice::TX_WINDOW_USRP1) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1059 | if (mRadioInterface->isUnderrun()) { |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 1060 | // only update latency at the defined frame interval |
| 1061 | if (radioClock->get() > mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL)) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1062 | mTransmitLatency = mTransmitLatency + GSM::Time(1,0); |
Pau Espin Pedrol | 74bcc56 | 2018-10-02 17:30:28 +0200 | [diff] [blame] | 1063 | LOG(INFO) << "new latency: " << mTransmitLatency << " (underrun " |
| 1064 | << radioClock->get() << " vs " << mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL) << ")"; |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1065 | mLatencyUpdateTime = radioClock->get(); |
| 1066 | } |
| 1067 | } |
| 1068 | else { |
| 1069 | // if underrun hasn't occurred in the last sec (216 frames) drop |
| 1070 | // transmit latency by a timeslot |
Pau Espin Pedrol | e564f0f | 2018-04-24 18:43:51 +0200 | [diff] [blame] | 1071 | if (mTransmitLatency > mRadioInterface->minLatency()) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1072 | if (radioClock->get() > mLatencyUpdateTime + GSM::Time(216,0)) { |
| 1073 | mTransmitLatency.decTN(); |
| 1074 | LOG(INFO) << "reduced latency: " << mTransmitLatency; |
| 1075 | mLatencyUpdateTime = radioClock->get(); |
| 1076 | } |
| 1077 | } |
| 1078 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1079 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1080 | // time to push burst to transmit FIFO |
| 1081 | pushRadioVector(mTransmitDeadlineClock); |
| 1082 | mTransmitDeadlineClock.incTN(); |
| 1083 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1084 | } |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1085 | |
| 1086 | radioClock->wait(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1087 | } |
| 1088 | |
| 1089 | |
| 1090 | |
| 1091 | void Transceiver::writeClockInterface() |
| 1092 | { |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1093 | int msgLen; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1094 | char command[50]; |
| 1095 | // FIXME -- This should be adaptive. |
| 1096 | sprintf(command,"IND CLOCK %llu",(unsigned long long) (mTransmitDeadlineClock.FN()+2)); |
| 1097 | |
| 1098 | LOG(INFO) << "ClockInterface: sending " << command; |
| 1099 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1100 | msgLen = write(mClockSocket, command, strlen(command) + 1); |
| 1101 | if (msgLen <= 0) |
| 1102 | LOG(WARNING) << "mClockSocket write(" << mClockSocket << ") failed: " << msgLen; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1103 | |
| 1104 | mLastClockUpdateTime = mTransmitDeadlineClock; |
| 1105 | |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1106 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1107 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1108 | void *RxUpperLoopAdapter(TransceiverChannel *chan) |
| 1109 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1110 | char thread_name[16]; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1111 | Transceiver *trx = chan->trx; |
| 1112 | size_t num = chan->num; |
| 1113 | |
| 1114 | delete chan; |
| 1115 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1116 | snprintf(thread_name, 16, "RxUpper%zu", num); |
| 1117 | set_selfthread_name(thread_name); |
| 1118 | |
Thomas Tsou | 7553aa9 | 2013-11-08 12:50:03 -0500 | [diff] [blame] | 1119 | trx->setPriority(0.42); |
| 1120 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1121 | while (1) { |
| 1122 | trx->driveReceiveFIFO(num); |
| 1123 | pthread_testcancel(); |
| 1124 | } |
| 1125 | return NULL; |
| 1126 | } |
| 1127 | |
| 1128 | void *RxLowerLoopAdapter(Transceiver *transceiver) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1129 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1130 | set_selfthread_name("RxLower"); |
| 1131 | |
Thomas Tsou | 7553aa9 | 2013-11-08 12:50:03 -0500 | [diff] [blame] | 1132 | transceiver->setPriority(0.45); |
kurtis.heimerl | 6b495a5 | 2011-11-26 03:17:21 +0000 | [diff] [blame] | 1133 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1134 | while (1) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1135 | transceiver->driveReceiveRadio(); |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1136 | pthread_testcancel(); |
| 1137 | } |
| 1138 | return NULL; |
| 1139 | } |
| 1140 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1141 | void *TxLowerLoopAdapter(Transceiver *transceiver) |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1142 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1143 | set_selfthread_name("TxLower"); |
| 1144 | |
Thomas Tsou | 7553aa9 | 2013-11-08 12:50:03 -0500 | [diff] [blame] | 1145 | transceiver->setPriority(0.44); |
| 1146 | |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1147 | while (1) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1148 | transceiver->driveTxFIFO(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1149 | pthread_testcancel(); |
| 1150 | } |
| 1151 | return NULL; |
| 1152 | } |
| 1153 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1154 | void *ControlServiceLoopAdapter(TransceiverChannel *chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1155 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1156 | char thread_name[16]; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1157 | Transceiver *trx = chan->trx; |
| 1158 | size_t num = chan->num; |
| 1159 | |
| 1160 | delete chan; |
| 1161 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1162 | snprintf(thread_name, 16, "CtrlService%zu", num); |
| 1163 | set_selfthread_name(thread_name); |
| 1164 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1165 | while (1) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1166 | trx->driveControl(num); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1167 | pthread_testcancel(); |
| 1168 | } |
| 1169 | return NULL; |
| 1170 | } |
| 1171 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1172 | void *TxUpperLoopAdapter(TransceiverChannel *chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1173 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1174 | char thread_name[16]; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1175 | Transceiver *trx = chan->trx; |
| 1176 | size_t num = chan->num; |
| 1177 | |
| 1178 | delete chan; |
| 1179 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1180 | snprintf(thread_name, 16, "TxUpper%zu", num); |
| 1181 | set_selfthread_name(thread_name); |
| 1182 | |
Thomas Tsou | a4cf48c | 2013-11-09 21:44:26 -0500 | [diff] [blame] | 1183 | trx->setPriority(0.40); |
| 1184 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1185 | while (1) { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 1186 | trx->driveTxPriorityQueue(num); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1187 | pthread_testcancel(); |
| 1188 | } |
| 1189 | return NULL; |
| 1190 | } |