dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2008, 2009, 2010 Free Software Foundation, Inc. |
| 3 | * |
Pau Espin Pedrol | 21d03d3 | 2019-07-22 12:05:52 +0200 | [diff] [blame] | 4 | * SPDX-License-Identifier: GPL-3.0+ |
| 5 | * |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 6 | * This software is distributed under the terms of the GNU Public License. |
| 7 | * See the COPYING file in the main directory for details. |
| 8 | * |
| 9 | * This use of this software may be subject to additional restrictions. |
| 10 | * See the LEGAL file in the main directory for details. |
| 11 | |
| 12 | This program is free software: you can redistribute it and/or modify |
| 13 | it under the terms of the GNU General Public License as published by |
| 14 | the Free Software Foundation, either version 3 of the License, or |
| 15 | (at your option) any later version. |
| 16 | |
| 17 | This program is distributed in the hope that it will be useful, |
| 18 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | GNU General Public License for more details. |
| 21 | |
| 22 | You should have received a copy of the GNU General Public License |
| 23 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 24 | */ |
| 25 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 26 | #include <stdio.h> |
Alexander Chemeris | e8905a0 | 2015-06-03 23:47:56 -0400 | [diff] [blame] | 27 | #include <iomanip> // std::setprecision |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 28 | #include <fstream> |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 29 | #include "Transceiver.h" |
| 30 | #include <Logger.h> |
| 31 | |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 32 | extern "C" { |
| 33 | #include "osmo_signal.h" |
Pau Espin Pedrol | 778b30a | 2019-06-28 13:27:24 +0200 | [diff] [blame] | 34 | #include "proto_trxd.h" |
| 35 | |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 36 | #include <osmocom/core/utils.h> |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 37 | #include <osmocom/core/socket.h> |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 38 | #include <osmocom/core/bits.h> |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 39 | } |
| 40 | |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 41 | #ifdef HAVE_CONFIG_H |
| 42 | #include "config.h" |
| 43 | #endif |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 44 | |
Alexander Chemeris | d734e2d | 2013-06-16 14:30:58 +0400 | [diff] [blame] | 45 | using namespace GSM; |
| 46 | |
kurtis.heimerl | ec842de | 2012-11-23 08:37:32 +0000 | [diff] [blame] | 47 | #define USB_LATENCY_INTRVL 10,0 |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 48 | |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 49 | /* Number of running values use in noise average */ |
| 50 | #define NOISE_CNT 20 |
ttsou | e8dde02 | 2012-12-06 15:43:55 +0000 | [diff] [blame] | 51 | |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 52 | TransceiverState::TransceiverState() |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 53 | : mRetrans(false), mNoiseLev(0.0), mNoises(NOISE_CNT), mPower(0.0) |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 54 | { |
| 55 | for (int i = 0; i < 8; i++) { |
| 56 | chanType[i] = Transceiver::NONE; |
| 57 | fillerModulus[i] = 26; |
| 58 | chanResponse[i] = NULL; |
| 59 | DFEForward[i] = NULL; |
| 60 | DFEFeedback[i] = NULL; |
| 61 | |
| 62 | for (int n = 0; n < 102; n++) |
| 63 | fillerTable[n][i] = NULL; |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | TransceiverState::~TransceiverState() |
| 68 | { |
| 69 | for (int i = 0; i < 8; i++) { |
| 70 | delete chanResponse[i]; |
| 71 | delete DFEForward[i]; |
| 72 | delete DFEFeedback[i]; |
| 73 | |
| 74 | for (int n = 0; n < 102; n++) |
| 75 | delete fillerTable[n][i]; |
| 76 | } |
| 77 | } |
| 78 | |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 79 | 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] | 80 | { |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 81 | signalVector *burst; |
| 82 | |
| 83 | if ((sps != 1) && (sps != 4)) |
| 84 | return false; |
| 85 | |
| 86 | for (size_t n = 0; n < 8; n++) { |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 87 | for (size_t i = 0; i < 102; i++) { |
| 88 | switch (filler) { |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 89 | case FILLER_DUMMY: |
Tom Tsou | 8ee2f38 | 2016-03-06 20:57:34 -0800 | [diff] [blame] | 90 | burst = generateDummyBurst(sps, n); |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 91 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 92 | case FILLER_NORM_RAND: |
Tom Tsou | 8ee2f38 | 2016-03-06 20:57:34 -0800 | [diff] [blame] | 93 | burst = genRandNormalBurst(rtsc, sps, n); |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 94 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 95 | case FILLER_EDGE_RAND: |
Tom Tsou | af717b2 | 2016-03-06 22:19:15 -0800 | [diff] [blame] | 96 | burst = generateEdgeBurst(rtsc); |
| 97 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 98 | case FILLER_ACCESS_RAND: |
Alexander Chemeris | 37c52c7 | 2016-03-25 18:28:34 +0300 | [diff] [blame] | 99 | burst = genRandAccessBurst(rach_delay, sps, n); |
Alexander Chemeris | 5efe050 | 2016-03-23 17:06:32 +0300 | [diff] [blame] | 100 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 101 | case FILLER_ZERO: |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 102 | default: |
Tom Tsou | 8ee2f38 | 2016-03-06 20:57:34 -0800 | [diff] [blame] | 103 | burst = generateEmptyBurst(sps, n); |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 104 | } |
| 105 | |
| 106 | scaleVector(*burst, scale); |
| 107 | fillerTable[i][n] = burst; |
| 108 | } |
| 109 | |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 110 | if ((filler == FILLER_NORM_RAND) || |
| 111 | (filler == FILLER_EDGE_RAND)) { |
Alexander Chemeris | f9e78be | 2017-03-17 15:00:34 -0700 | [diff] [blame] | 112 | chanType[n] = TSC; |
Tom Tsou | af717b2 | 2016-03-06 22:19:15 -0800 | [diff] [blame] | 113 | } |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 114 | } |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 115 | |
| 116 | return false; |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 117 | } |
| 118 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 119 | Transceiver::Transceiver(int wBasePort, |
Pau Espin Pedrol | 8c80095 | 2017-08-16 16:53:23 +0200 | [diff] [blame] | 120 | const char *TRXAddress, |
| 121 | const char *GSMcoreAddress, |
Tom Tsou | 5cd70dc | 2016-03-06 01:28:40 -0800 | [diff] [blame] | 122 | size_t tx_sps, size_t rx_sps, size_t chans, |
Alexander Chemeris | e8905a0 | 2015-06-03 23:47:56 -0400 | [diff] [blame] | 123 | GSM::Time wTransmitLatency, |
| 124 | RadioInterface *wRadioInterface, |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 125 | double wRssiOffset, int wStackSize) |
Pau Espin Pedrol | 8c80095 | 2017-08-16 16:53:23 +0200 | [diff] [blame] | 126 | : mBasePort(wBasePort), mLocalAddr(TRXAddress), mRemoteAddr(GSMcoreAddress), |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 127 | mClockSocket(-1), mTransmitLatency(wTransmitLatency), mRadioInterface(wRadioInterface), |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 128 | rssiOffset(wRssiOffset), stackSize(wStackSize), |
Pau Espin Pedrol | 758381b | 2019-07-16 21:55:03 +0200 | [diff] [blame] | 129 | mSPSTx(tx_sps), mSPSRx(rx_sps), mChans(chans), mExtRACH(false), mEdge(false), |
| 130 | mOn(false), mForceClockInterface(false), |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 131 | 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] | 132 | mWriteBurstToDiskMask(0), mVersionTRXD(0) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 133 | { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 134 | txFullScale = mRadioInterface->fullScaleInputValue(); |
| 135 | rxFullScale = mRadioInterface->fullScaleOutputValue(); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 136 | |
| 137 | for (int i = 0; i < 8; i++) { |
| 138 | for (int j = 0; j < 8; j++) |
| 139 | mHandover[i][j] = false; |
| 140 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 141 | } |
| 142 | |
| 143 | Transceiver::~Transceiver() |
| 144 | { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 145 | stop(); |
| 146 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 147 | sigProcLibDestroy(); |
Thomas Tsou | d647ec5 | 2013-10-29 15:17:34 -0400 | [diff] [blame] | 148 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 149 | if (mClockSocket >= 0) |
| 150 | close(mClockSocket); |
| 151 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 152 | for (size_t i = 0; i < mChans; i++) { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 153 | mControlServiceLoopThreads[i]->cancel(); |
| 154 | mControlServiceLoopThreads[i]->join(); |
| 155 | delete mControlServiceLoopThreads[i]; |
| 156 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 157 | mTxPriorityQueues[i].clear(); |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 158 | if (mCtrlSockets[i] >= 0) |
| 159 | close(mCtrlSockets[i]); |
| 160 | if (mDataSockets[i] >= 0) |
| 161 | close(mDataSockets[i]); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 162 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 163 | } |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 164 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 165 | /* |
| 166 | * Initialize transceiver |
| 167 | * |
| 168 | * Start or restart the control loop. Any further control is handled through the |
| 169 | * socket API. Randomize the central radio clock set the downlink burst |
| 170 | * counters. Note that the clock will not update until the radio starts, but we |
| 171 | * are still expected to report clock indications through control channel |
| 172 | * activity. |
| 173 | */ |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 174 | bool Transceiver::init(FillerType filler, size_t rtsc, unsigned rach_delay, |
| 175 | bool edge, bool ext_rach) |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 176 | { |
Thomas Tsou | e1ce925 | 2013-11-13 22:40:44 -0500 | [diff] [blame] | 177 | int d_srcport, d_dstport, c_srcport, c_dstport; |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 178 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 179 | if (!mChans) { |
| 180 | LOG(ALERT) << "No channels assigned"; |
| 181 | return false; |
| 182 | } |
| 183 | |
Tom Tsou | 2079a3c | 2016-03-06 00:58:56 -0800 | [diff] [blame] | 184 | if (!sigProcLibSetup()) { |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 185 | LOG(ALERT) << "Failed to initialize signal processing library"; |
| 186 | return false; |
| 187 | } |
| 188 | |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 189 | mExtRACH = ext_rach; |
Tom Tsou | 64464e6 | 2016-07-01 03:46:46 -0700 | [diff] [blame] | 190 | mEdge = edge; |
| 191 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 192 | mDataSockets.resize(mChans, -1); |
| 193 | mCtrlSockets.resize(mChans, -1); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 194 | mControlServiceLoopThreads.resize(mChans); |
| 195 | mTxPriorityQueueServiceLoopThreads.resize(mChans); |
| 196 | mRxServiceLoopThreads.resize(mChans); |
| 197 | |
| 198 | mTxPriorityQueues.resize(mChans); |
| 199 | mReceiveFIFO.resize(mChans); |
| 200 | mStates.resize(mChans); |
| 201 | |
Thomas Tsou | ccb73e1 | 2014-04-15 17:41:28 -0400 | [diff] [blame] | 202 | /* Filler table retransmissions - support only on channel 0 */ |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 203 | if (filler == FILLER_DUMMY) |
Thomas Tsou | ccb73e1 | 2014-04-15 17:41:28 -0400 | [diff] [blame] | 204 | mStates[0].mRetrans = true; |
| 205 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 206 | /* Setup sockets */ |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 207 | mClockSocket = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
| 208 | mLocalAddr.c_str(), mBasePort, |
| 209 | mRemoteAddr.c_str(), mBasePort + 100, |
| 210 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
| 211 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 212 | for (size_t i = 0; i < mChans; i++) { |
Thomas Tsou | e1ce925 | 2013-11-13 22:40:44 -0500 | [diff] [blame] | 213 | c_srcport = mBasePort + 2 * i + 1; |
| 214 | c_dstport = mBasePort + 2 * i + 101; |
| 215 | d_srcport = mBasePort + 2 * i + 2; |
| 216 | d_dstport = mBasePort + 2 * i + 102; |
| 217 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 218 | mCtrlSockets[i] = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
| 219 | mLocalAddr.c_str(), c_srcport, |
| 220 | mRemoteAddr.c_str(), c_dstport, |
| 221 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
| 222 | if (mCtrlSockets[i] < 0) |
| 223 | return false; |
| 224 | |
| 225 | mDataSockets[i] = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
| 226 | mLocalAddr.c_str(), d_srcport, |
| 227 | mRemoteAddr.c_str(), d_dstport, |
| 228 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
| 229 | if (mCtrlSockets[i] < 0) |
| 230 | return false; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 231 | } |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 232 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 233 | /* Randomize the central clock */ |
| 234 | GSM::Time startTime(random() % gHyperframe, 0); |
| 235 | mRadioInterface->getClock()->set(startTime); |
| 236 | mTransmitDeadlineClock = startTime; |
| 237 | mLastClockUpdateTime = startTime; |
| 238 | mLatencyUpdateTime = startTime; |
| 239 | |
| 240 | /* Start control threads */ |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 241 | for (size_t i = 0; i < mChans; i++) { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 242 | TransceiverChannel *chan = new TransceiverChannel(this, i); |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 243 | mControlServiceLoopThreads[i] = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 244 | mControlServiceLoopThreads[i]->start((void * (*)(void*)) |
| 245 | ControlServiceLoopAdapter, (void*) chan); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 246 | |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 247 | if (i && filler == FILLER_DUMMY) |
| 248 | filler = FILLER_ZERO; |
| 249 | |
Alexander Chemeris | 37c52c7 | 2016-03-25 18:28:34 +0300 | [diff] [blame] | 250 | mStates[i].init(filler, mSPSTx, txFullScale, rtsc, rach_delay); |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 251 | } |
| 252 | |
| 253 | return true; |
| 254 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 255 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 256 | /* |
| 257 | * Start the transceiver |
| 258 | * |
| 259 | * Submit command(s) to the radio device to commence streaming samples and |
| 260 | * launch threads to handle sample I/O. Re-synchronize the transmit burst |
| 261 | * counters to the central radio clock here as well. |
| 262 | */ |
| 263 | bool Transceiver::start() |
| 264 | { |
| 265 | ScopedLock lock(mLock); |
| 266 | |
| 267 | if (mOn) { |
| 268 | LOG(ERR) << "Transceiver already running"; |
Ivan Kluchnikov | 194a9b1 | 2015-04-23 17:08:27 +0300 | [diff] [blame] | 269 | return true; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 270 | } |
| 271 | |
| 272 | LOG(NOTICE) << "Starting the transceiver"; |
| 273 | |
| 274 | GSM::Time time = mRadioInterface->getClock()->get(); |
| 275 | mTransmitDeadlineClock = time; |
| 276 | mLastClockUpdateTime = time; |
| 277 | mLatencyUpdateTime = time; |
| 278 | |
| 279 | if (!mRadioInterface->start()) { |
| 280 | LOG(ALERT) << "Device failed to start"; |
| 281 | return false; |
| 282 | } |
| 283 | |
| 284 | /* Device is running - launch I/O threads */ |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 285 | mRxLowerLoopThread = new Thread(stackSize); |
| 286 | mTxLowerLoopThread = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 287 | mTxLowerLoopThread->start((void * (*)(void*)) |
| 288 | TxLowerLoopAdapter,(void*) this); |
| 289 | mRxLowerLoopThread->start((void * (*)(void*)) |
| 290 | RxLowerLoopAdapter,(void*) this); |
| 291 | |
| 292 | /* Launch uplink and downlink burst processing threads */ |
| 293 | for (size_t i = 0; i < mChans; i++) { |
| 294 | TransceiverChannel *chan = new TransceiverChannel(this, i); |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 295 | mRxServiceLoopThreads[i] = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 296 | mRxServiceLoopThreads[i]->start((void * (*)(void*)) |
| 297 | RxUpperLoopAdapter, (void*) chan); |
| 298 | |
| 299 | chan = new TransceiverChannel(this, i); |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 300 | mTxPriorityQueueServiceLoopThreads[i] = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 301 | mTxPriorityQueueServiceLoopThreads[i]->start((void * (*)(void*)) |
| 302 | TxUpperLoopAdapter, (void*) chan); |
| 303 | } |
| 304 | |
Pau Espin Pedrol | 934da48 | 2017-07-04 16:25:20 +0200 | [diff] [blame] | 305 | mForceClockInterface = true; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 306 | mOn = true; |
| 307 | return true; |
| 308 | } |
| 309 | |
| 310 | /* |
| 311 | * Stop the transceiver |
| 312 | * |
| 313 | * Perform stopping by disabling receive streaming and issuing cancellation |
| 314 | * requests to running threads. Most threads will timeout and terminate once |
| 315 | * device is disabled, but the transmit loop may block waiting on the central |
| 316 | * UMTS clock. Explicitly signal the clock to make sure that the transmit loop |
| 317 | * makes it to the thread cancellation point. |
| 318 | */ |
| 319 | void Transceiver::stop() |
| 320 | { |
| 321 | ScopedLock lock(mLock); |
| 322 | |
| 323 | if (!mOn) |
| 324 | return; |
| 325 | |
| 326 | LOG(NOTICE) << "Stopping the transceiver"; |
| 327 | mTxLowerLoopThread->cancel(); |
| 328 | mRxLowerLoopThread->cancel(); |
Tom Tsou | d67bd60 | 2017-06-15 15:35:02 -0700 | [diff] [blame] | 329 | mTxLowerLoopThread->join(); |
| 330 | mRxLowerLoopThread->join(); |
| 331 | delete mTxLowerLoopThread; |
| 332 | delete mRxLowerLoopThread; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 333 | |
| 334 | for (size_t i = 0; i < mChans; i++) { |
| 335 | mRxServiceLoopThreads[i]->cancel(); |
| 336 | mTxPriorityQueueServiceLoopThreads[i]->cancel(); |
| 337 | } |
| 338 | |
| 339 | LOG(INFO) << "Stopping the device"; |
| 340 | mRadioInterface->stop(); |
| 341 | |
| 342 | for (size_t i = 0; i < mChans; i++) { |
| 343 | mRxServiceLoopThreads[i]->join(); |
| 344 | mTxPriorityQueueServiceLoopThreads[i]->join(); |
| 345 | delete mRxServiceLoopThreads[i]; |
| 346 | delete mTxPriorityQueueServiceLoopThreads[i]; |
| 347 | |
| 348 | mTxPriorityQueues[i].clear(); |
| 349 | } |
| 350 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 351 | mOn = false; |
| 352 | LOG(NOTICE) << "Transceiver stopped"; |
| 353 | } |
| 354 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 355 | void Transceiver::addRadioVector(size_t chan, BitVector &bits, |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 356 | int RSSI, GSM::Time &wTime) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 357 | { |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 358 | signalVector *burst; |
| 359 | radioVector *radio_burst; |
| 360 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 361 | if (chan >= mTxPriorityQueues.size()) { |
| 362 | LOG(ALERT) << "Invalid channel " << chan; |
| 363 | return; |
| 364 | } |
| 365 | |
Thomas Tsou | 2d0c00b | 2013-11-14 15:28:23 -0500 | [diff] [blame] | 366 | if (wTime.TN() > 7) { |
| 367 | LOG(ALERT) << "Received burst with invalid slot " << wTime.TN(); |
| 368 | return; |
| 369 | } |
| 370 | |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 371 | /* Use the number of bits as the EDGE burst indicator */ |
| 372 | if (bits.size() == EDGE_BURST_NBITS) |
| 373 | burst = modulateEdgeBurst(bits, mSPSTx); |
| 374 | else |
| 375 | burst = modulateBurst(bits, 8 + (wTime.TN() % 4 == 0), mSPSTx); |
| 376 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 377 | scaleVector(*burst, txFullScale * pow(10, -RSSI / 10)); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 378 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 379 | radio_burst = new radioVector(wTime, burst); |
| 380 | |
| 381 | mTxPriorityQueues[chan].write(radio_burst); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 382 | } |
| 383 | |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 384 | void Transceiver::updateFillerTable(size_t chan, radioVector *burst) |
| 385 | { |
| 386 | int TN, modFN; |
| 387 | TransceiverState *state = &mStates[chan]; |
| 388 | |
| 389 | TN = burst->getTime().TN(); |
| 390 | modFN = burst->getTime().FN() % state->fillerModulus[TN]; |
| 391 | |
| 392 | delete state->fillerTable[modFN][TN]; |
| 393 | state->fillerTable[modFN][TN] = burst->getVector(); |
| 394 | burst->setVector(NULL); |
| 395 | } |
| 396 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 397 | void Transceiver::pushRadioVector(GSM::Time &nowTime) |
| 398 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 399 | int TN, modFN; |
| 400 | radioVector *burst; |
| 401 | TransceiverState *state; |
| 402 | std::vector<signalVector *> bursts(mChans); |
| 403 | std::vector<bool> zeros(mChans); |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 404 | std::vector<bool> filler(mChans, true); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 405 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 406 | for (size_t i = 0; i < mChans; i ++) { |
| 407 | state = &mStates[i]; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 408 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 409 | while ((burst = mTxPriorityQueues[i].getStaleBurst(nowTime))) { |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 410 | LOGCHAN(i, DMAIN, NOTICE) << "dumping STALE burst in TRX->SDR interface (" |
Pau Espin Pedrol | f37b0ad | 2018-04-25 18:01:27 +0200 | [diff] [blame] | 411 | << burst->getTime() <<" vs " << nowTime << "), retrans=" << state->mRetrans; |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 412 | if (state->mRetrans) |
| 413 | updateFillerTable(i, burst); |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 414 | delete burst; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 415 | } |
| 416 | |
| 417 | TN = nowTime.TN(); |
| 418 | modFN = nowTime.FN() % state->fillerModulus[TN]; |
| 419 | |
| 420 | bursts[i] = state->fillerTable[modFN][TN]; |
| 421 | zeros[i] = state->chanType[TN] == NONE; |
| 422 | |
| 423 | if ((burst = mTxPriorityQueues[i].getCurrentBurst(nowTime))) { |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 424 | bursts[i] = burst->getVector(); |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 425 | |
| 426 | if (state->mRetrans) { |
| 427 | updateFillerTable(i, burst); |
| 428 | } else { |
| 429 | burst->setVector(NULL); |
| 430 | filler[i] = false; |
| 431 | } |
| 432 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 433 | delete burst; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 434 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 435 | } |
| 436 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 437 | mRadioInterface->driveTransmitRadio(bursts, zeros); |
| 438 | |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 439 | for (size_t i = 0; i < mChans; i++) { |
| 440 | if (!filler[i]) |
| 441 | delete bursts[i]; |
| 442 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 443 | } |
| 444 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 445 | void Transceiver::setModulus(size_t timeslot, size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 446 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 447 | TransceiverState *state = &mStates[chan]; |
| 448 | |
| 449 | switch (state->chanType[timeslot]) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 450 | case NONE: |
| 451 | case I: |
| 452 | case II: |
| 453 | case III: |
| 454 | case FILL: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 455 | state->fillerModulus[timeslot] = 26; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 456 | break; |
| 457 | case IV: |
| 458 | case VI: |
| 459 | case V: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 460 | state->fillerModulus[timeslot] = 51; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 461 | break; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 462 | //case V: |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 463 | case VII: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 464 | state->fillerModulus[timeslot] = 102; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 465 | break; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 466 | case XIII: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 467 | state->fillerModulus[timeslot] = 52; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 468 | break; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 469 | default: |
| 470 | break; |
| 471 | } |
| 472 | } |
| 473 | |
| 474 | |
Alexander Chemeris | f9e78be | 2017-03-17 15:00:34 -0700 | [diff] [blame] | 475 | CorrType Transceiver::expectedCorrType(GSM::Time currTime, |
| 476 | size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 477 | { |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 478 | 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 }; |
| 479 | 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, |
| 480 | 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 }; |
| 481 | 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, |
| 482 | 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] | 483 | TransceiverState *state = &mStates[chan]; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 484 | unsigned burstTN = currTime.TN(); |
| 485 | unsigned burstFN = currTime.FN(); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 486 | int subch; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 487 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 488 | switch (state->chanType[burstTN]) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 489 | case NONE: |
| 490 | return OFF; |
| 491 | break; |
| 492 | case FILL: |
| 493 | return IDLE; |
| 494 | break; |
| 495 | case I: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 496 | // TODO: Are we expecting RACH on an IDLE frame? |
| 497 | /* if (burstFN % 26 == 25) |
| 498 | return IDLE;*/ |
| 499 | if (mHandover[burstTN][0]) |
| 500 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 501 | return TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 502 | break; |
| 503 | case II: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 504 | subch = tchh_subslot[burstFN % 26]; |
| 505 | if (subch == 1) |
| 506 | return IDLE; |
| 507 | if (mHandover[burstTN][0]) |
| 508 | return RACH; |
ttsou | 2064297 | 2013-03-27 22:00:25 +0000 | [diff] [blame] | 509 | return TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 510 | break; |
| 511 | case III: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 512 | subch = tchh_subslot[burstFN % 26]; |
| 513 | if (mHandover[burstTN][subch]) |
| 514 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 515 | return TSC; |
| 516 | break; |
| 517 | case IV: |
| 518 | case VI: |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 519 | return mExtRACH ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 520 | break; |
| 521 | case V: { |
| 522 | int mod51 = burstFN % 51; |
| 523 | if ((mod51 <= 36) && (mod51 >= 14)) |
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 == 4) || (mod51 == 5)) |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 526 | return mExtRACH ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 527 | else if ((mod51 == 45) || (mod51 == 46)) |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 528 | return mExtRACH ? EXT_RACH : RACH; |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 529 | else if (mHandover[burstTN][sdcch4_subslot[burstFN % 102]]) |
| 530 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 531 | else |
| 532 | return TSC; |
| 533 | break; |
| 534 | } |
| 535 | case VII: |
| 536 | if ((burstFN % 51 <= 14) && (burstFN % 51 >= 12)) |
| 537 | return IDLE; |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 538 | else if (mHandover[burstTN][sdcch8_subslot[burstFN % 102]]) |
| 539 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 540 | else |
| 541 | return TSC; |
| 542 | break; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 543 | case XIII: { |
| 544 | int mod52 = burstFN % 52; |
| 545 | if ((mod52 == 12) || (mod52 == 38)) |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 546 | return mExtRACH ? EXT_RACH : RACH; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 547 | else if ((mod52 == 25) || (mod52 == 51)) |
| 548 | return IDLE; |
| 549 | else |
| 550 | return TSC; |
| 551 | break; |
| 552 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 553 | case LOOPBACK: |
| 554 | if ((burstFN % 51 <= 50) && (burstFN % 51 >=48)) |
| 555 | return IDLE; |
| 556 | else |
| 557 | return TSC; |
| 558 | break; |
| 559 | default: |
| 560 | return OFF; |
| 561 | break; |
| 562 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 563 | } |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 564 | |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 565 | void writeToFile(radioVector *radio_burst, size_t chan) |
| 566 | { |
| 567 | GSM::Time time = radio_burst->getTime(); |
| 568 | std::ostringstream fname; |
| 569 | fname << chan << "_" << time.FN() << "_" << time.TN() << ".fc"; |
| 570 | std::ofstream outfile (fname.str().c_str(), std::ofstream::binary); |
| 571 | outfile.write((char*)radio_burst->getVector()->begin(), radio_burst->getVector()->size() * 2 * sizeof(float)); |
| 572 | outfile.close(); |
| 573 | } |
| 574 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 575 | /* |
| 576 | * Pull bursts from the FIFO and handle according to the slot |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 577 | * and burst correlation type. Equalzation is currently disabled. |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 578 | */ |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 579 | bool Transceiver::pullRadioVector(size_t chan, struct trx_ul_burst_ind *bi) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 580 | { |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 581 | int rc; |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 582 | struct estim_burst_params ebp; |
| 583 | float max = -1.0, avg = 0.0; |
Pau Espin Pedrol | 9bb24a1 | 2019-07-03 15:43:03 +0200 | [diff] [blame] | 584 | unsigned max_toa; |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 585 | int max_i = -1; |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 586 | signalVector *burst; |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 587 | GSM::Time burstTime; |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 588 | SoftVector *rxBurst; |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 589 | TransceiverState *state = &mStates[chan]; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 590 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 591 | /* Blocking FIFO read */ |
| 592 | radioVector *radio_burst = mReceiveFIFO[chan]->read(); |
| 593 | if (!radio_burst) |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 594 | return false; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 595 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 596 | /* Set time and determine correlation type */ |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 597 | burstTime = radio_burst->getTime(); |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 598 | CorrType type = expectedCorrType(burstTime, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 599 | |
Tom Tsou | 64464e6 | 2016-07-01 03:46:46 -0700 | [diff] [blame] | 600 | /* Enable 8-PSK burst detection if EDGE is enabled */ |
| 601 | if (mEdge && (type == TSC)) |
| 602 | type = EDGE; |
| 603 | |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 604 | /* Debug: dump bursts to disk */ |
| 605 | /* bits 0-7 - chan 0 timeslots |
| 606 | * bits 8-15 - chan 1 timeslots */ |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 607 | if (mWriteBurstToDiskMask & ((1<<bi->tn) << (8*chan))) |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 608 | writeToFile(radio_burst, chan); |
| 609 | |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 610 | /* No processing if the timeslot is off. |
| 611 | * Not even power level or noise calculation. */ |
| 612 | if (type == OFF) { |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 613 | delete radio_burst; |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 614 | return false; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 615 | } |
kurtis.heimerl | 3ed6fb7 | 2011-11-26 03:17:52 +0000 | [diff] [blame] | 616 | |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 617 | /* Initialize struct bi */ |
| 618 | bi->nbits = 0; |
| 619 | bi->fn = burstTime.FN(); |
| 620 | bi->tn = burstTime.TN(); |
| 621 | bi->rssi = 0.0; |
| 622 | bi->toa = 0.0; |
| 623 | bi->noise = 0.0; |
| 624 | bi->idle = false; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 625 | bi->modulation = MODULATION_GMSK; |
| 626 | bi->tss = 0; /* TODO: we only support tss 0 right now */ |
| 627 | bi->tsc = 0; |
| 628 | bi->ci = 0.0; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 629 | |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 630 | /* Select the diversity channel with highest energy */ |
| 631 | for (size_t i = 0; i < radio_burst->chans(); i++) { |
Alexander Chemeris | 1dd05cf | 2017-03-15 23:23:36 +0300 | [diff] [blame] | 632 | float pow = energyDetect(*radio_burst->getVector(i), 20 * mSPSRx); |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 633 | if (pow > max) { |
| 634 | max = pow; |
| 635 | max_i = i; |
| 636 | } |
| 637 | avg += pow; |
| 638 | } |
| 639 | |
| 640 | if (max_i < 0) { |
| 641 | LOG(ALERT) << "Received empty burst"; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 642 | goto ret_idle; |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 643 | } |
| 644 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 645 | /* Average noise on diversity paths and update global levels */ |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 646 | burst = radio_burst->getVector(max_i); |
Thomas Tsou | ef25dba | 2013-11-14 15:31:24 -0500 | [diff] [blame] | 647 | avg = sqrt(avg / radio_burst->chans()); |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 648 | |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 649 | if (type == IDLE) { |
| 650 | /* Update noise levels */ |
| 651 | state->mNoises.insert(avg); |
| 652 | state->mNoiseLev = state->mNoises.avg(); |
Pau Espin Pedrol | be9cd66 | 2019-07-03 15:00:56 +0200 | [diff] [blame] | 653 | } |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 654 | |
Pau Espin Pedrol | be9cd66 | 2019-07-03 15:00:56 +0200 | [diff] [blame] | 655 | bi->rssi = 20.0 * log10(rxFullScale / avg) + rssiOffset; |
| 656 | bi->noise = 20.0 * log10(rxFullScale / state->mNoiseLev) + rssiOffset; |
| 657 | |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 658 | if (type == IDLE) |
| 659 | goto ret_idle; |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 660 | |
Pau Espin Pedrol | 9bb24a1 | 2019-07-03 15:43:03 +0200 | [diff] [blame] | 661 | max_toa = (type == RACH || type == EXT_RACH) ? |
| 662 | mMaxExpectedDelayAB : mMaxExpectedDelayNB; |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 663 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 664 | /* Detect normal or RACH bursts */ |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 665 | rc = detectAnyBurst(*burst, mTSC, BURST_THRESH, mSPSRx, type, max_toa, &ebp); |
Pau Espin Pedrol | d6dbb1b | 2019-07-03 15:23:56 +0200 | [diff] [blame] | 666 | if (rc <= 0) { |
| 667 | if (rc == -SIGERR_CLIP) |
Alexander Chemeris | 954b118 | 2015-06-04 15:39:41 -0400 | [diff] [blame] | 668 | LOG(WARNING) << "Clipping detected on received RACH or Normal Burst"; |
Pau Espin Pedrol | d6dbb1b | 2019-07-03 15:23:56 +0200 | [diff] [blame] | 669 | else if (rc != SIGERR_NONE) |
Alexander Chemeris | 954b118 | 2015-06-04 15:39:41 -0400 | [diff] [blame] | 670 | LOG(WARNING) << "Unhandled RACH or Normal Burst detection error"; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 671 | goto ret_idle; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 672 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 673 | |
Pau Espin Pedrol | d6dbb1b | 2019-07-03 15:23:56 +0200 | [diff] [blame] | 674 | type = (CorrType) rc; |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 675 | bi->toa = ebp.toa; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 676 | bi->tsc = ebp.tsc; |
| 677 | bi->ci = ebp.ci; |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 678 | rxBurst = demodAnyBurst(*burst, mSPSRx, ebp.amp, ebp.toa, type); |
Thomas Tsou | ef25dba | 2013-11-14 15:31:24 -0500 | [diff] [blame] | 679 | |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 680 | /* EDGE demodulator returns 444 (gSlotLen * 3) bits */ |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 681 | if (rxBurst->size() == EDGE_BURST_NBITS) { |
| 682 | bi->modulation = MODULATION_8PSK; |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 683 | bi->nbits = EDGE_BURST_NBITS; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 684 | } else { /* size() here is actually gSlotLen + 8, due to guard periods */ |
| 685 | bi->modulation = MODULATION_GMSK; |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 686 | bi->nbits = gSlotLen; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 687 | } |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 688 | |
Pau Espin Pedrol | 25ae190 | 2019-07-01 16:40:44 +0200 | [diff] [blame] | 689 | // Convert -1..+1 soft bits to 0..1 soft bits |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 690 | vectorSlicer(bi->rx_burst, rxBurst->begin(), bi->nbits); |
Pau Espin Pedrol | 25ae190 | 2019-07-01 16:40:44 +0200 | [diff] [blame] | 691 | |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 692 | delete rxBurst; |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 693 | delete radio_burst; |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 694 | return true; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 695 | |
| 696 | ret_idle: |
| 697 | bi->idle = true; |
| 698 | delete radio_burst; |
| 699 | return false; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 700 | } |
| 701 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 702 | void Transceiver::reset() |
| 703 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 704 | for (size_t i = 0; i < mTxPriorityQueues.size(); i++) |
| 705 | mTxPriorityQueues[i].clear(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 706 | } |
| 707 | |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 708 | |
Vadim Yanitskiy | bd0efb0 | 2018-03-09 02:45:07 +0700 | [diff] [blame] | 709 | #define MAX_PACKET_LENGTH 100 |
| 710 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 711 | /** |
| 712 | * Matches a buffer with a command. |
| 713 | * @param buf a buffer to look command in |
| 714 | * @param cmd a command to look in buffer |
| 715 | * @param params pointer to arguments, or NULL |
| 716 | * @return true if command matches, otherwise false |
| 717 | */ |
| 718 | static bool match_cmd(char *buf, |
| 719 | const char *cmd, char **params) |
| 720 | { |
| 721 | size_t cmd_len = strlen(cmd); |
| 722 | |
| 723 | /* Check a command itself */ |
| 724 | if (strncmp(buf, cmd, cmd_len)) |
| 725 | return false; |
| 726 | |
| 727 | /* A command has arguments */ |
| 728 | if (params != NULL) { |
| 729 | /* Make sure there is a space */ |
| 730 | if (buf[cmd_len] != ' ') |
| 731 | return false; |
| 732 | |
| 733 | /* Update external pointer */ |
| 734 | *params = buf + cmd_len + 1; |
| 735 | } |
| 736 | |
| 737 | return true; |
| 738 | } |
| 739 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 740 | void Transceiver::driveControl(size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 741 | { |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 742 | char buffer[MAX_PACKET_LENGTH + 1]; |
| 743 | char response[MAX_PACKET_LENGTH + 1]; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 744 | char *command, *params; |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 745 | int msgLen; |
Thomas Tsou | d647ec5 | 2013-10-29 15:17:34 -0400 | [diff] [blame] | 746 | |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 747 | /* Attempt to read from control socket */ |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 748 | msgLen = read(mCtrlSockets[chan], buffer, MAX_PACKET_LENGTH); |
| 749 | if (msgLen <= 0) { |
| 750 | LOGCHAN(chan, DTRXCTRL, WARNING) << "mCtrlSockets read(" << mCtrlSockets[chan] << ") failed: " << msgLen; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 751 | return; |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 752 | } |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 753 | |
| 754 | /* Zero-terminate received string */ |
| 755 | buffer[msgLen] = '\0'; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 756 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 757 | /* Verify a command signature */ |
| 758 | if (strncmp(buffer, "CMD ", 4)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 759 | LOGC(DTRXCTRL, WARNING) << "bogus message on control interface"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 760 | return; |
| 761 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 762 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 763 | /* Set command pointer */ |
| 764 | command = buffer + 4; |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 765 | LOGCHAN(chan, DTRXCTRL, INFO) << "command is '" << command << "'"; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 766 | |
| 767 | if (match_cmd(command, "POWEROFF", NULL)) { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 768 | stop(); |
| 769 | sprintf(response,"RSP POWEROFF 0"); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 770 | } else if (match_cmd(command, "POWERON", NULL)) { |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 771 | if (!start()) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 772 | sprintf(response,"RSP POWERON 1"); |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 773 | } else { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 774 | sprintf(response,"RSP POWERON 0"); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 775 | for (int i = 0; i < 8; i++) { |
| 776 | for (int j = 0; j < 8; j++) |
| 777 | mHandover[i][j] = false; |
| 778 | } |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 779 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 780 | } else if (match_cmd(command, "HANDOVER", ¶ms)) { |
Vadim Yanitskiy | c0c6d70 | 2018-03-09 05:08:23 +0700 | [diff] [blame] | 781 | unsigned ts = 0, ss = 0; |
| 782 | sscanf(params, "%u %u", &ts, &ss); |
| 783 | if (ts > 7 || ss > 7) { |
| 784 | sprintf(response, "RSP NOHANDOVER 1 %u %u", ts, ss); |
| 785 | } else { |
| 786 | mHandover[ts][ss] = true; |
| 787 | sprintf(response, "RSP HANDOVER 0 %u %u", ts, ss); |
| 788 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 789 | } else if (match_cmd(command, "NOHANDOVER", ¶ms)) { |
Vadim Yanitskiy | c0c6d70 | 2018-03-09 05:08:23 +0700 | [diff] [blame] | 790 | unsigned ts = 0, ss = 0; |
| 791 | sscanf(params, "%u %u", &ts, &ss); |
| 792 | if (ts > 7 || ss > 7) { |
| 793 | sprintf(response, "RSP NOHANDOVER 1 %u %u", ts, ss); |
| 794 | } else { |
| 795 | mHandover[ts][ss] = false; |
| 796 | sprintf(response, "RSP NOHANDOVER 0 %u %u", ts, ss); |
| 797 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 798 | } else if (match_cmd(command, "SETMAXDLY", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 799 | //set expected maximum time-of-arrival |
| 800 | int maxDelay; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 801 | sscanf(params, "%d", &maxDelay); |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 802 | mMaxExpectedDelayAB = maxDelay; // 1 GSM symbol is approx. 1 km |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 803 | sprintf(response,"RSP SETMAXDLY 0 %d",maxDelay); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 804 | } else if (match_cmd(command, "SETMAXDLYNB", ¶ms)) { |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 805 | //set expected maximum time-of-arrival |
| 806 | int maxDelay; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 807 | sscanf(params, "%d", &maxDelay); |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 808 | mMaxExpectedDelayNB = maxDelay; // 1 GSM symbol is approx. 1 km |
| 809 | sprintf(response,"RSP SETMAXDLYNB 0 %d",maxDelay); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 810 | } else if (match_cmd(command, "SETRXGAIN", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 811 | //set expected maximum time-of-arrival |
| 812 | int newGain; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 813 | sscanf(params, "%d", &newGain); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 814 | newGain = mRadioInterface->setRxGain(newGain, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 815 | sprintf(response,"RSP SETRXGAIN 0 %d",newGain); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 816 | } else if (match_cmd(command, "NOISELEV", NULL)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 817 | if (mOn) { |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 818 | float lev = mStates[chan].mNoiseLev; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 819 | sprintf(response,"RSP NOISELEV 0 %d", |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 820 | (int) round(20.0 * log10(rxFullScale / lev))); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 821 | } |
| 822 | else { |
| 823 | sprintf(response,"RSP NOISELEV 1 0"); |
| 824 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 825 | } else if (match_cmd(command, "SETPOWER", ¶ms)) { |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 826 | int power; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 827 | sscanf(params, "%d", &power); |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 828 | power = mRadioInterface->setPowerAttenuation(power, chan); |
| 829 | mStates[chan].mPower = power; |
| 830 | sprintf(response, "RSP SETPOWER 0 %d", power); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 831 | } else if (match_cmd(command, "ADJPOWER", ¶ms)) { |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 832 | int power, step; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 833 | sscanf(params, "%d", &step); |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 834 | power = mStates[chan].mPower + step; |
| 835 | power = mRadioInterface->setPowerAttenuation(power, chan); |
| 836 | mStates[chan].mPower = power; |
| 837 | sprintf(response, "RSP ADJPOWER 0 %d", power); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 838 | } else if (match_cmd(command, "RXTUNE", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 839 | // tune receiver |
| 840 | int freqKhz; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 841 | sscanf(params, "%d", &freqKhz); |
Thomas Tsou | 477b77c | 2013-11-15 16:13:59 -0500 | [diff] [blame] | 842 | mRxFreq = freqKhz * 1e3; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 843 | if (!mRadioInterface->tuneRx(mRxFreq, chan)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 844 | LOGC(DTRXCTRL, ALERT) << "RX failed to tune"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 845 | sprintf(response,"RSP RXTUNE 1 %d",freqKhz); |
| 846 | } |
| 847 | else |
| 848 | sprintf(response,"RSP RXTUNE 0 %d",freqKhz); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 849 | } else if (match_cmd(command, "TXTUNE", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 850 | // tune txmtr |
| 851 | int freqKhz; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 852 | sscanf(params, "%d", &freqKhz); |
Thomas Tsou | 477b77c | 2013-11-15 16:13:59 -0500 | [diff] [blame] | 853 | mTxFreq = freqKhz * 1e3; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 854 | if (!mRadioInterface->tuneTx(mTxFreq, chan)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 855 | LOGC(DTRXCTRL, ALERT) << "TX failed to tune"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 856 | sprintf(response,"RSP TXTUNE 1 %d",freqKhz); |
| 857 | } |
| 858 | else |
| 859 | sprintf(response,"RSP TXTUNE 0 %d",freqKhz); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 860 | } else if (match_cmd(command, "SETTSC", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 861 | // set TSC |
Thomas Tsou | 3f32ab5 | 2013-11-15 16:32:54 -0500 | [diff] [blame] | 862 | unsigned TSC; |
Vadim Yanitskiy | 8c6c5d2 | 2018-03-09 05:01:21 +0700 | [diff] [blame] | 863 | sscanf(params, "%u", &TSC); |
Tom Tsou | 6031734 | 2017-03-30 19:36:41 -0700 | [diff] [blame] | 864 | if (TSC > 7) { |
Thomas Tsou | d3fccea | 2013-11-15 14:22:53 -0500 | [diff] [blame] | 865 | sprintf(response, "RSP SETTSC 1 %d", TSC); |
Tom Tsou | 6031734 | 2017-03-30 19:36:41 -0700 | [diff] [blame] | 866 | } else { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 867 | LOGC(DTRXCTRL, NOTICE) << "Changing TSC from " << mTSC << " to " << TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 868 | mTSC = TSC; |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 869 | sprintf(response,"RSP SETTSC 0 %d", TSC); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 870 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 871 | } else if (match_cmd(command, "SETSLOT", ¶ms)) { |
Alexander Chemeris | 1fe5282 | 2015-05-20 12:02:29 -0700 | [diff] [blame] | 872 | // set slot type |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 873 | int corrCode; |
| 874 | int timeslot; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 875 | sscanf(params, "%d %d", ×lot, &corrCode); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 876 | if ((timeslot < 0) || (timeslot > 7)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 877 | LOGC(DTRXCTRL, WARNING) << "bogus message on control interface"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 878 | sprintf(response,"RSP SETSLOT 1 %d %d",timeslot,corrCode); |
| 879 | return; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 880 | } |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 881 | mStates[chan].chanType[timeslot] = (ChannelCombination) corrCode; |
| 882 | setModulus(timeslot, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 883 | sprintf(response,"RSP SETSLOT 0 %d %d",timeslot,corrCode); |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 884 | } else if (match_cmd(command, "SETFORMAT", ¶ms)) { |
| 885 | // set TRXD protocol version |
| 886 | unsigned version_recv; |
| 887 | sscanf(params, "%u", &version_recv); |
| 888 | LOGC(DTRXCTRL, INFO) << "BTS requests TRXD version switch: " << version_recv; |
| 889 | if (version_recv > TRX_DATA_FORMAT_VER) { |
| 890 | LOGC(DTRXCTRL, INFO) << "rejecting TRXD version " << version_recv |
| 891 | << "in favor of " << TRX_DATA_FORMAT_VER; |
| 892 | sprintf(response, "RSP SETFORMAT %u %u", TRX_DATA_FORMAT_VER, version_recv); |
| 893 | } else { |
| 894 | LOGC(DTRXCTRL, NOTICE) << "switching to TRXD version " << version_recv; |
| 895 | mVersionTRXD = version_recv; |
| 896 | sprintf(response, "RSP SETFORMAT %u %u", version_recv, version_recv); |
| 897 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 898 | } else if (match_cmd(command, "_SETBURSTTODISKMASK", ¶ms)) { |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 899 | // debug command! may change or disapear without notice |
| 900 | // set a mask which bursts to dump to disk |
| 901 | int mask; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 902 | sscanf(params, "%d", &mask); |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 903 | mWriteBurstToDiskMask = mask; |
| 904 | sprintf(response,"RSP _SETBURSTTODISKMASK 0 %d",mask); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 905 | } else { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 906 | LOGC(DTRXCTRL, WARNING) << "bogus command " << command << " on control interface."; |
Alexander Chemeris | 4438a9f | 2013-04-08 00:14:08 +0200 | [diff] [blame] | 907 | sprintf(response,"RSP ERR 1"); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 908 | } |
| 909 | |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 910 | LOGCHAN(chan, DTRXCTRL, INFO) << "response is '" << response << "'"; |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 911 | msgLen = write(mCtrlSockets[chan], response, strlen(response) + 1); |
| 912 | if (msgLen <= 0) |
| 913 | LOGCHAN(chan, DTRXCTRL, WARNING) << "mCtrlSockets write(" << mCtrlSockets[chan] << ") failed: " << msgLen; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 914 | } |
| 915 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 916 | bool Transceiver::driveTxPriorityQueue(size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 917 | { |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 918 | int msgLen; |
Tom Tsou | e887108 | 2016-07-01 02:46:04 -0700 | [diff] [blame] | 919 | int burstLen; |
| 920 | char buffer[EDGE_BURST_NBITS + 50]; |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 921 | struct trxd_hdr_common *chdr; |
| 922 | uint32_t fn; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 923 | |
| 924 | // check data socket |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 925 | msgLen = read(mDataSockets[chan], buffer, sizeof(buffer)); |
| 926 | if (msgLen <= 0) { |
| 927 | LOGCHAN(chan, DTRXCTRL, WARNING) << "mDataSockets read(" << mCtrlSockets[chan] << ") failed: " << msgLen; |
| 928 | return false; |
| 929 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 930 | |
Tom Tsou | e887108 | 2016-07-01 02:46:04 -0700 | [diff] [blame] | 931 | if (msgLen == gSlotLen + 1 + 4 + 1) { |
| 932 | burstLen = gSlotLen; |
| 933 | } else if (msgLen == EDGE_BURST_NBITS + 1 + 4 + 1) { |
| 934 | if (mSPSTx != 4) |
| 935 | return false; |
| 936 | |
| 937 | burstLen = EDGE_BURST_NBITS; |
| 938 | } else { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 939 | LOG(ERR) << "badly formatted packet on GSM->TRX interface"; |
| 940 | return false; |
| 941 | } |
| 942 | |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 943 | /* Common header part: HDR version, TDMA TN & FN */ |
| 944 | chdr = (struct trxd_hdr_common *) buffer; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 945 | |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 946 | /* Convert TDMA FN to the host endianness */ |
| 947 | fn = osmo_load32be(&chdr->fn); |
| 948 | |
Vadim Yanitskiy | dd571c6 | 2019-07-15 23:56:56 +0700 | [diff] [blame] | 949 | /* Make sure we support the received header format */ |
| 950 | switch (chdr->version) { |
| 951 | case 0: |
| 952 | /* Version 1 has the same format */ |
| 953 | case 1: |
| 954 | break; |
| 955 | |
| 956 | default: |
| 957 | LOG(ERR) << "Rx TRXD message with unknown header version " << chdr->version; |
| 958 | return false; |
| 959 | } |
| 960 | |
Vadim Yanitskiy | 56c5f29 | 2019-07-16 00:02:56 +0700 | [diff] [blame] | 961 | LOG(DEBUG) << "Rx TRXD message (hdr_ver=" << chdr->version << "): " |
| 962 | << "fn=" << fn << ", tn=" << chdr->tn << ", " |
| 963 | << "burst_len=" << burstLen; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 964 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 965 | int RSSI = (int) buffer[5]; |
Tom Tsou | 7c741ec | 2016-07-19 11:20:59 -0700 | [diff] [blame] | 966 | BitVector newBurst(burstLen); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 967 | BitVector::iterator itr = newBurst.begin(); |
| 968 | char *bufferItr = buffer+6; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 969 | while (itr < newBurst.end()) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 970 | *itr++ = *bufferItr++; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 971 | |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 972 | GSM::Time currTime = GSM::Time(fn, chdr->tn); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 973 | |
| 974 | addRadioVector(chan, newBurst, RSSI, currTime); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 975 | |
| 976 | return true; |
| 977 | |
| 978 | |
| 979 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 980 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 981 | void Transceiver::driveReceiveRadio() |
| 982 | { |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 983 | int rc = mRadioInterface->driveReceiveRadio(); |
| 984 | if (rc == 0) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 985 | usleep(100000); |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 986 | } else if (rc < 0) { |
| 987 | LOG(FATAL) << "radio Interface receive failed, requesting stop."; |
Pau Espin Pedrol | b426e4a | 2019-06-04 12:39:28 +0200 | [diff] [blame] | 988 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
Pau Espin Pedrol | 934da48 | 2017-07-04 16:25:20 +0200 | [diff] [blame] | 989 | } else if (mForceClockInterface || mTransmitDeadlineClock > mLastClockUpdateTime + GSM::Time(216,0)) { |
| 990 | mForceClockInterface = false; |
| 991 | writeClockInterface(); |
Alexander Chemeris | 6a2bf0d | 2015-05-24 19:28:09 -0400 | [diff] [blame] | 992 | } |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 993 | } |
| 994 | |
Pau Espin Pedrol | 607a414 | 2019-07-01 13:56:17 +0200 | [diff] [blame] | 995 | 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] | 996 | { |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 997 | std::ostringstream os; |
| 998 | for (size_t i=0; i < bi->nbits; i++) { |
| 999 | if (bi->rx_burst[i] > 0.5) os << "1"; |
| 1000 | else if (bi->rx_burst[i] > 0.25) os << "|"; |
| 1001 | else if (bi->rx_burst[i] > 0.0) os << "'"; |
| 1002 | else os << "-"; |
| 1003 | } |
| 1004 | |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 1005 | LOG(DEBUG) << std::fixed << std::right |
Alexander Chemeris | 58e9591 | 2016-03-25 18:20:28 +0300 | [diff] [blame] | 1006 | << " chan: " << chan |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 1007 | << " time: " << bi->tn << ":" << bi->fn |
Pau Espin Pedrol | 607a414 | 2019-07-01 13:56:17 +0200 | [diff] [blame] | 1008 | << " RSSI: " << std::setw(5) << std::setprecision(1) << (bi->rssi - rssiOffset) |
| 1009 | << "dBFS/" << std::setw(6) << -bi->rssi << "dBm" |
| 1010 | << " noise: " << std::setw(5) << std::setprecision(1) << (bi->noise - rssiOffset) |
| 1011 | << "dBFS/" << std::setw(6) << -bi->noise << "dBm" |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1012 | << " TOA: " << std::setw(5) << std::setprecision(2) << bi->toa |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 1013 | << " C/I: " << std::setw(5) << std::setprecision(2) << bi->ci << "dB" |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 1014 | << " bits: " << os; |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 1015 | } |
| 1016 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1017 | void Transceiver::driveReceiveFIFO(size_t chan) |
| 1018 | { |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1019 | struct trx_ul_burst_ind bi; |
| 1020 | |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1021 | if (!pullRadioVector(chan, &bi)) |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1022 | return; |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1023 | if (!bi.idle) |
| 1024 | logRxBurst(chan, &bi); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1025 | |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1026 | switch (mVersionTRXD) { |
| 1027 | case 0: |
| 1028 | trxd_send_burst_ind_v0(chan, mDataSockets[chan], &bi); |
| 1029 | break; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 1030 | case 1: |
| 1031 | trxd_send_burst_ind_v1(chan, mDataSockets[chan], &bi); |
| 1032 | break; |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1033 | default: |
| 1034 | OSMO_ASSERT(false); |
| 1035 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1036 | } |
| 1037 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1038 | void Transceiver::driveTxFIFO() |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1039 | { |
| 1040 | |
| 1041 | /** |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1042 | Features a carefully controlled latency mechanism, to |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1043 | assure that transmit packets arrive at the radio/USRP |
| 1044 | before they need to be transmitted. |
| 1045 | |
| 1046 | Deadline clock indicates the burst that needs to be |
| 1047 | pushed into the FIFO right NOW. If transmit queue does |
| 1048 | not have a burst, stick in filler data. |
| 1049 | */ |
| 1050 | |
| 1051 | |
| 1052 | RadioClock *radioClock = (mRadioInterface->getClock()); |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1053 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1054 | if (mOn) { |
| 1055 | //radioClock->wait(); // wait until clock updates |
| 1056 | LOG(DEBUG) << "radio clock " << radioClock->get(); |
| 1057 | while (radioClock->get() + mTransmitLatency > mTransmitDeadlineClock) { |
| 1058 | // if underrun, then we're not providing bursts to radio/USRP fast |
| 1059 | // enough. Need to increase latency by one GSM frame. |
Thomas Tsou | 02d88d1 | 2013-04-05 15:36:30 -0400 | [diff] [blame] | 1060 | if (mRadioInterface->getWindowType() == RadioDevice::TX_WINDOW_USRP1) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1061 | if (mRadioInterface->isUnderrun()) { |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 1062 | // only update latency at the defined frame interval |
| 1063 | if (radioClock->get() > mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL)) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1064 | mTransmitLatency = mTransmitLatency + GSM::Time(1,0); |
Pau Espin Pedrol | 74bcc56 | 2018-10-02 17:30:28 +0200 | [diff] [blame] | 1065 | LOG(INFO) << "new latency: " << mTransmitLatency << " (underrun " |
| 1066 | << radioClock->get() << " vs " << mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL) << ")"; |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1067 | mLatencyUpdateTime = radioClock->get(); |
| 1068 | } |
| 1069 | } |
| 1070 | else { |
| 1071 | // if underrun hasn't occurred in the last sec (216 frames) drop |
| 1072 | // transmit latency by a timeslot |
Pau Espin Pedrol | e564f0f | 2018-04-24 18:43:51 +0200 | [diff] [blame] | 1073 | if (mTransmitLatency > mRadioInterface->minLatency()) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1074 | if (radioClock->get() > mLatencyUpdateTime + GSM::Time(216,0)) { |
| 1075 | mTransmitLatency.decTN(); |
| 1076 | LOG(INFO) << "reduced latency: " << mTransmitLatency; |
| 1077 | mLatencyUpdateTime = radioClock->get(); |
| 1078 | } |
| 1079 | } |
| 1080 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1081 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1082 | // time to push burst to transmit FIFO |
| 1083 | pushRadioVector(mTransmitDeadlineClock); |
| 1084 | mTransmitDeadlineClock.incTN(); |
| 1085 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1086 | } |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1087 | |
| 1088 | radioClock->wait(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1089 | } |
| 1090 | |
| 1091 | |
| 1092 | |
| 1093 | void Transceiver::writeClockInterface() |
| 1094 | { |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1095 | int msgLen; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1096 | char command[50]; |
| 1097 | // FIXME -- This should be adaptive. |
| 1098 | sprintf(command,"IND CLOCK %llu",(unsigned long long) (mTransmitDeadlineClock.FN()+2)); |
| 1099 | |
| 1100 | LOG(INFO) << "ClockInterface: sending " << command; |
| 1101 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1102 | msgLen = write(mClockSocket, command, strlen(command) + 1); |
| 1103 | if (msgLen <= 0) |
| 1104 | LOG(WARNING) << "mClockSocket write(" << mClockSocket << ") failed: " << msgLen; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1105 | |
| 1106 | mLastClockUpdateTime = mTransmitDeadlineClock; |
| 1107 | |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1108 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1109 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1110 | void *RxUpperLoopAdapter(TransceiverChannel *chan) |
| 1111 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1112 | char thread_name[16]; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1113 | Transceiver *trx = chan->trx; |
| 1114 | size_t num = chan->num; |
| 1115 | |
| 1116 | delete chan; |
| 1117 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1118 | snprintf(thread_name, 16, "RxUpper%zu", num); |
| 1119 | set_selfthread_name(thread_name); |
| 1120 | |
Thomas Tsou | 7553aa9 | 2013-11-08 12:50:03 -0500 | [diff] [blame] | 1121 | trx->setPriority(0.42); |
| 1122 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1123 | while (1) { |
| 1124 | trx->driveReceiveFIFO(num); |
| 1125 | pthread_testcancel(); |
| 1126 | } |
| 1127 | return NULL; |
| 1128 | } |
| 1129 | |
| 1130 | void *RxLowerLoopAdapter(Transceiver *transceiver) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1131 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1132 | set_selfthread_name("RxLower"); |
| 1133 | |
Thomas Tsou | 7553aa9 | 2013-11-08 12:50:03 -0500 | [diff] [blame] | 1134 | transceiver->setPriority(0.45); |
kurtis.heimerl | 6b495a5 | 2011-11-26 03:17:21 +0000 | [diff] [blame] | 1135 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1136 | while (1) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1137 | transceiver->driveReceiveRadio(); |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1138 | pthread_testcancel(); |
| 1139 | } |
| 1140 | return NULL; |
| 1141 | } |
| 1142 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1143 | void *TxLowerLoopAdapter(Transceiver *transceiver) |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1144 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1145 | set_selfthread_name("TxLower"); |
| 1146 | |
Thomas Tsou | 7553aa9 | 2013-11-08 12:50:03 -0500 | [diff] [blame] | 1147 | transceiver->setPriority(0.44); |
| 1148 | |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1149 | while (1) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1150 | transceiver->driveTxFIFO(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1151 | pthread_testcancel(); |
| 1152 | } |
| 1153 | return NULL; |
| 1154 | } |
| 1155 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1156 | void *ControlServiceLoopAdapter(TransceiverChannel *chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1157 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1158 | char thread_name[16]; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1159 | Transceiver *trx = chan->trx; |
| 1160 | size_t num = chan->num; |
| 1161 | |
| 1162 | delete chan; |
| 1163 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1164 | snprintf(thread_name, 16, "CtrlService%zu", num); |
| 1165 | set_selfthread_name(thread_name); |
| 1166 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1167 | while (1) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1168 | trx->driveControl(num); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1169 | pthread_testcancel(); |
| 1170 | } |
| 1171 | return NULL; |
| 1172 | } |
| 1173 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1174 | void *TxUpperLoopAdapter(TransceiverChannel *chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1175 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1176 | char thread_name[16]; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1177 | Transceiver *trx = chan->trx; |
| 1178 | size_t num = chan->num; |
| 1179 | |
| 1180 | delete chan; |
| 1181 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1182 | snprintf(thread_name, 16, "TxUpper%zu", num); |
| 1183 | set_selfthread_name(thread_name); |
| 1184 | |
Thomas Tsou | a4cf48c | 2013-11-09 21:44:26 -0500 | [diff] [blame] | 1185 | trx->setPriority(0.40); |
| 1186 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1187 | while (1) { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 1188 | trx->driveTxPriorityQueue(num); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1189 | pthread_testcancel(); |
| 1190 | } |
| 1191 | return NULL; |
| 1192 | } |