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> |
Pau Espin Pedrol | 27424a3 | 2019-08-07 12:45:53 +0200 | [diff] [blame] | 27 | #include <netinet/in.h> |
Alexander Chemeris | e8905a0 | 2015-06-03 23:47:56 -0400 | [diff] [blame] | 28 | #include <iomanip> // std::setprecision |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 29 | #include <fstream> |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 30 | #include "Transceiver.h" |
| 31 | #include <Logger.h> |
| 32 | |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 33 | extern "C" { |
| 34 | #include "osmo_signal.h" |
Pau Espin Pedrol | 778b30a | 2019-06-28 13:27:24 +0200 | [diff] [blame] | 35 | #include "proto_trxd.h" |
| 36 | |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 37 | #include <osmocom/core/utils.h> |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 38 | #include <osmocom/core/socket.h> |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 39 | #include <osmocom/core/bits.h> |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 40 | } |
| 41 | |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 42 | #ifdef HAVE_CONFIG_H |
| 43 | #include "config.h" |
| 44 | #endif |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 45 | |
Alexander Chemeris | d734e2d | 2013-06-16 14:30:58 +0400 | [diff] [blame] | 46 | using namespace GSM; |
| 47 | |
kurtis.heimerl | ec842de | 2012-11-23 08:37:32 +0000 | [diff] [blame] | 48 | #define USB_LATENCY_INTRVL 10,0 |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 49 | |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 50 | /* Number of running values use in noise average */ |
| 51 | #define NOISE_CNT 20 |
ttsou | e8dde02 | 2012-12-06 15:43:55 +0000 | [diff] [blame] | 52 | |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 53 | TransceiverState::TransceiverState() |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 54 | : mRetrans(false), mNoiseLev(0.0), mNoises(NOISE_CNT), mPower(0.0) |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 55 | { |
| 56 | for (int i = 0; i < 8; i++) { |
| 57 | chanType[i] = Transceiver::NONE; |
| 58 | fillerModulus[i] = 26; |
| 59 | chanResponse[i] = NULL; |
| 60 | DFEForward[i] = NULL; |
| 61 | DFEFeedback[i] = NULL; |
| 62 | |
| 63 | for (int n = 0; n < 102; n++) |
| 64 | fillerTable[n][i] = NULL; |
| 65 | } |
| 66 | } |
| 67 | |
| 68 | TransceiverState::~TransceiverState() |
| 69 | { |
| 70 | for (int i = 0; i < 8; i++) { |
| 71 | delete chanResponse[i]; |
| 72 | delete DFEForward[i]; |
| 73 | delete DFEFeedback[i]; |
| 74 | |
| 75 | for (int n = 0; n < 102; n++) |
| 76 | delete fillerTable[n][i]; |
| 77 | } |
| 78 | } |
| 79 | |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 80 | 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] | 81 | { |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 82 | signalVector *burst; |
| 83 | |
| 84 | if ((sps != 1) && (sps != 4)) |
| 85 | return false; |
| 86 | |
| 87 | for (size_t n = 0; n < 8; n++) { |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 88 | for (size_t i = 0; i < 102; i++) { |
| 89 | switch (filler) { |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 90 | case FILLER_DUMMY: |
Tom Tsou | 8ee2f38 | 2016-03-06 20:57:34 -0800 | [diff] [blame] | 91 | burst = generateDummyBurst(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_NORM_RAND: |
Tom Tsou | 8ee2f38 | 2016-03-06 20:57:34 -0800 | [diff] [blame] | 94 | burst = genRandNormalBurst(rtsc, sps, n); |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 95 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 96 | case FILLER_EDGE_RAND: |
Tom Tsou | af717b2 | 2016-03-06 22:19:15 -0800 | [diff] [blame] | 97 | burst = generateEdgeBurst(rtsc); |
| 98 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 99 | case FILLER_ACCESS_RAND: |
Alexander Chemeris | 37c52c7 | 2016-03-25 18:28:34 +0300 | [diff] [blame] | 100 | burst = genRandAccessBurst(rach_delay, sps, n); |
Alexander Chemeris | 5efe050 | 2016-03-23 17:06:32 +0300 | [diff] [blame] | 101 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 102 | case FILLER_ZERO: |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 103 | default: |
Tom Tsou | 8ee2f38 | 2016-03-06 20:57:34 -0800 | [diff] [blame] | 104 | burst = generateEmptyBurst(sps, n); |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 105 | } |
| 106 | |
| 107 | scaleVector(*burst, scale); |
| 108 | fillerTable[i][n] = burst; |
| 109 | } |
| 110 | |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 111 | if ((filler == FILLER_NORM_RAND) || |
| 112 | (filler == FILLER_EDGE_RAND)) { |
Alexander Chemeris | f9e78be | 2017-03-17 15:00:34 -0700 | [diff] [blame] | 113 | chanType[n] = TSC; |
Tom Tsou | af717b2 | 2016-03-06 22:19:15 -0800 | [diff] [blame] | 114 | } |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 115 | } |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 116 | |
| 117 | return false; |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 118 | } |
| 119 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 120 | Transceiver::Transceiver(int wBasePort, |
Pau Espin Pedrol | 8c80095 | 2017-08-16 16:53:23 +0200 | [diff] [blame] | 121 | const char *TRXAddress, |
| 122 | const char *GSMcoreAddress, |
Tom Tsou | 5cd70dc | 2016-03-06 01:28:40 -0800 | [diff] [blame] | 123 | size_t tx_sps, size_t rx_sps, size_t chans, |
Alexander Chemeris | e8905a0 | 2015-06-03 23:47:56 -0400 | [diff] [blame] | 124 | GSM::Time wTransmitLatency, |
| 125 | RadioInterface *wRadioInterface, |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 126 | double wRssiOffset, int wStackSize) |
Pau Espin Pedrol | 8c80095 | 2017-08-16 16:53:23 +0200 | [diff] [blame] | 127 | : mBasePort(wBasePort), mLocalAddr(TRXAddress), mRemoteAddr(GSMcoreAddress), |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 128 | mClockSocket(-1), mTransmitLatency(wTransmitLatency), mRadioInterface(wRadioInterface), |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 129 | rssiOffset(wRssiOffset), stackSize(wStackSize), |
Pau Espin Pedrol | 758381b | 2019-07-16 21:55:03 +0200 | [diff] [blame] | 130 | mSPSTx(tx_sps), mSPSRx(rx_sps), mChans(chans), mExtRACH(false), mEdge(false), |
| 131 | mOn(false), mForceClockInterface(false), |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 132 | mTxFreq(0.0), mRxFreq(0.0), mTSC(0), mMaxExpectedDelayAB(0), mMaxExpectedDelayNB(0), |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 133 | mWriteBurstToDiskMask(0) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 134 | { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 135 | txFullScale = mRadioInterface->fullScaleInputValue(); |
| 136 | rxFullScale = mRadioInterface->fullScaleOutputValue(); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 137 | |
| 138 | for (int i = 0; i < 8; i++) { |
| 139 | for (int j = 0; j < 8; j++) |
| 140 | mHandover[i][j] = false; |
| 141 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 142 | } |
| 143 | |
| 144 | Transceiver::~Transceiver() |
| 145 | { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 146 | stop(); |
| 147 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 148 | sigProcLibDestroy(); |
Thomas Tsou | d647ec5 | 2013-10-29 15:17:34 -0400 | [diff] [blame] | 149 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 150 | if (mClockSocket >= 0) |
| 151 | close(mClockSocket); |
| 152 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 153 | for (size_t i = 0; i < mChans; i++) { |
Pau Espin Pedrol | ca6a78e | 2019-08-26 10:50:16 +0200 | [diff] [blame^] | 154 | if (mControlServiceLoopThreads[i]) { |
| 155 | mControlServiceLoopThreads[i]->cancel(); |
| 156 | mControlServiceLoopThreads[i]->join(); |
| 157 | delete mControlServiceLoopThreads[i]; |
| 158 | } |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 159 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 160 | mTxPriorityQueues[i].clear(); |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 161 | if (mCtrlSockets[i] >= 0) |
| 162 | close(mCtrlSockets[i]); |
| 163 | if (mDataSockets[i] >= 0) |
| 164 | close(mDataSockets[i]); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 165 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 166 | } |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 167 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 168 | /* |
| 169 | * Initialize transceiver |
| 170 | * |
| 171 | * Start or restart the control loop. Any further control is handled through the |
| 172 | * socket API. Randomize the central radio clock set the downlink burst |
| 173 | * counters. Note that the clock will not update until the radio starts, but we |
| 174 | * are still expected to report clock indications through control channel |
| 175 | * activity. |
| 176 | */ |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 177 | bool Transceiver::init(FillerType filler, size_t rtsc, unsigned rach_delay, |
| 178 | bool edge, bool ext_rach) |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 179 | { |
Thomas Tsou | e1ce925 | 2013-11-13 22:40:44 -0500 | [diff] [blame] | 180 | int d_srcport, d_dstport, c_srcport, c_dstport; |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 181 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 182 | if (!mChans) { |
| 183 | LOG(ALERT) << "No channels assigned"; |
| 184 | return false; |
| 185 | } |
| 186 | |
Tom Tsou | 2079a3c | 2016-03-06 00:58:56 -0800 | [diff] [blame] | 187 | if (!sigProcLibSetup()) { |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 188 | LOG(ALERT) << "Failed to initialize signal processing library"; |
| 189 | return false; |
| 190 | } |
| 191 | |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 192 | mExtRACH = ext_rach; |
Tom Tsou | 64464e6 | 2016-07-01 03:46:46 -0700 | [diff] [blame] | 193 | mEdge = edge; |
| 194 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 195 | mDataSockets.resize(mChans, -1); |
| 196 | mCtrlSockets.resize(mChans, -1); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 197 | mControlServiceLoopThreads.resize(mChans); |
| 198 | mTxPriorityQueueServiceLoopThreads.resize(mChans); |
| 199 | mRxServiceLoopThreads.resize(mChans); |
| 200 | |
| 201 | mTxPriorityQueues.resize(mChans); |
| 202 | mReceiveFIFO.resize(mChans); |
| 203 | mStates.resize(mChans); |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 204 | mVersionTRXD.resize(mChans); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 205 | |
Thomas Tsou | ccb73e1 | 2014-04-15 17:41:28 -0400 | [diff] [blame] | 206 | /* Filler table retransmissions - support only on channel 0 */ |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 207 | if (filler == FILLER_DUMMY) |
Thomas Tsou | ccb73e1 | 2014-04-15 17:41:28 -0400 | [diff] [blame] | 208 | mStates[0].mRetrans = true; |
| 209 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 210 | /* Setup sockets */ |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 211 | mClockSocket = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
| 212 | mLocalAddr.c_str(), mBasePort, |
| 213 | mRemoteAddr.c_str(), mBasePort + 100, |
| 214 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
| 215 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 216 | for (size_t i = 0; i < mChans; i++) { |
Thomas Tsou | e1ce925 | 2013-11-13 22:40:44 -0500 | [diff] [blame] | 217 | c_srcport = mBasePort + 2 * i + 1; |
| 218 | c_dstport = mBasePort + 2 * i + 101; |
| 219 | d_srcport = mBasePort + 2 * i + 2; |
| 220 | d_dstport = mBasePort + 2 * i + 102; |
| 221 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 222 | mCtrlSockets[i] = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
| 223 | mLocalAddr.c_str(), c_srcport, |
| 224 | mRemoteAddr.c_str(), c_dstport, |
| 225 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
| 226 | if (mCtrlSockets[i] < 0) |
| 227 | return false; |
| 228 | |
| 229 | mDataSockets[i] = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
| 230 | mLocalAddr.c_str(), d_srcport, |
| 231 | mRemoteAddr.c_str(), d_dstport, |
| 232 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
| 233 | if (mCtrlSockets[i] < 0) |
| 234 | return false; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 235 | } |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 236 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 237 | /* Randomize the central clock */ |
| 238 | GSM::Time startTime(random() % gHyperframe, 0); |
| 239 | mRadioInterface->getClock()->set(startTime); |
| 240 | mTransmitDeadlineClock = startTime; |
| 241 | mLastClockUpdateTime = startTime; |
| 242 | mLatencyUpdateTime = startTime; |
| 243 | |
| 244 | /* Start control threads */ |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 245 | for (size_t i = 0; i < mChans; i++) { |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 246 | TrxChanThParams *params = (TrxChanThParams *)malloc(sizeof(struct TrxChanThParams)); |
| 247 | params->trx = this; |
| 248 | params->num = i; |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 249 | mControlServiceLoopThreads[i] = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 250 | mControlServiceLoopThreads[i]->start((void * (*)(void*)) |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 251 | ControlServiceLoopAdapter, (void*) params); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 252 | |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 253 | if (i && filler == FILLER_DUMMY) |
| 254 | filler = FILLER_ZERO; |
| 255 | |
Alexander Chemeris | 37c52c7 | 2016-03-25 18:28:34 +0300 | [diff] [blame] | 256 | mStates[i].init(filler, mSPSTx, txFullScale, rtsc, rach_delay); |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 257 | } |
| 258 | |
| 259 | return true; |
| 260 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 261 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 262 | /* |
| 263 | * Start the transceiver |
| 264 | * |
| 265 | * Submit command(s) to the radio device to commence streaming samples and |
| 266 | * launch threads to handle sample I/O. Re-synchronize the transmit burst |
| 267 | * counters to the central radio clock here as well. |
| 268 | */ |
| 269 | bool Transceiver::start() |
| 270 | { |
| 271 | ScopedLock lock(mLock); |
| 272 | |
| 273 | if (mOn) { |
| 274 | LOG(ERR) << "Transceiver already running"; |
Ivan Kluchnikov | 194a9b1 | 2015-04-23 17:08:27 +0300 | [diff] [blame] | 275 | return true; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 276 | } |
| 277 | |
| 278 | LOG(NOTICE) << "Starting the transceiver"; |
| 279 | |
| 280 | GSM::Time time = mRadioInterface->getClock()->get(); |
| 281 | mTransmitDeadlineClock = time; |
| 282 | mLastClockUpdateTime = time; |
| 283 | mLatencyUpdateTime = time; |
| 284 | |
| 285 | if (!mRadioInterface->start()) { |
| 286 | LOG(ALERT) << "Device failed to start"; |
| 287 | return false; |
| 288 | } |
| 289 | |
| 290 | /* Device is running - launch I/O threads */ |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 291 | mRxLowerLoopThread = new Thread(stackSize); |
| 292 | mTxLowerLoopThread = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 293 | mTxLowerLoopThread->start((void * (*)(void*)) |
| 294 | TxLowerLoopAdapter,(void*) this); |
| 295 | mRxLowerLoopThread->start((void * (*)(void*)) |
| 296 | RxLowerLoopAdapter,(void*) this); |
| 297 | |
| 298 | /* Launch uplink and downlink burst processing threads */ |
| 299 | for (size_t i = 0; i < mChans; i++) { |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 300 | TrxChanThParams *params = (TrxChanThParams *)malloc(sizeof(struct TrxChanThParams)); |
| 301 | params->trx = this; |
| 302 | params->num = i; |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 303 | mRxServiceLoopThreads[i] = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 304 | mRxServiceLoopThreads[i]->start((void * (*)(void*)) |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 305 | RxUpperLoopAdapter, (void*) params); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 306 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 307 | params = (TrxChanThParams *)malloc(sizeof(struct TrxChanThParams)); |
| 308 | params->trx = this; |
| 309 | params->num = i; |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 310 | mTxPriorityQueueServiceLoopThreads[i] = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 311 | mTxPriorityQueueServiceLoopThreads[i]->start((void * (*)(void*)) |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 312 | TxUpperLoopAdapter, (void*) params); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 313 | } |
| 314 | |
Pau Espin Pedrol | 934da48 | 2017-07-04 16:25:20 +0200 | [diff] [blame] | 315 | mForceClockInterface = true; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 316 | mOn = true; |
| 317 | return true; |
| 318 | } |
| 319 | |
| 320 | /* |
| 321 | * Stop the transceiver |
| 322 | * |
| 323 | * Perform stopping by disabling receive streaming and issuing cancellation |
| 324 | * requests to running threads. Most threads will timeout and terminate once |
| 325 | * device is disabled, but the transmit loop may block waiting on the central |
| 326 | * UMTS clock. Explicitly signal the clock to make sure that the transmit loop |
| 327 | * makes it to the thread cancellation point. |
| 328 | */ |
| 329 | void Transceiver::stop() |
| 330 | { |
| 331 | ScopedLock lock(mLock); |
| 332 | |
| 333 | if (!mOn) |
| 334 | return; |
| 335 | |
| 336 | LOG(NOTICE) << "Stopping the transceiver"; |
| 337 | mTxLowerLoopThread->cancel(); |
| 338 | mRxLowerLoopThread->cancel(); |
Tom Tsou | d67bd60 | 2017-06-15 15:35:02 -0700 | [diff] [blame] | 339 | mTxLowerLoopThread->join(); |
| 340 | mRxLowerLoopThread->join(); |
| 341 | delete mTxLowerLoopThread; |
| 342 | delete mRxLowerLoopThread; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 343 | |
| 344 | for (size_t i = 0; i < mChans; i++) { |
| 345 | mRxServiceLoopThreads[i]->cancel(); |
| 346 | mTxPriorityQueueServiceLoopThreads[i]->cancel(); |
| 347 | } |
| 348 | |
| 349 | LOG(INFO) << "Stopping the device"; |
| 350 | mRadioInterface->stop(); |
| 351 | |
| 352 | for (size_t i = 0; i < mChans; i++) { |
| 353 | mRxServiceLoopThreads[i]->join(); |
| 354 | mTxPriorityQueueServiceLoopThreads[i]->join(); |
| 355 | delete mRxServiceLoopThreads[i]; |
| 356 | delete mTxPriorityQueueServiceLoopThreads[i]; |
| 357 | |
| 358 | mTxPriorityQueues[i].clear(); |
| 359 | } |
| 360 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 361 | mOn = false; |
| 362 | LOG(NOTICE) << "Transceiver stopped"; |
| 363 | } |
| 364 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 365 | void Transceiver::addRadioVector(size_t chan, BitVector &bits, |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 366 | int RSSI, GSM::Time &wTime) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 367 | { |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 368 | signalVector *burst; |
| 369 | radioVector *radio_burst; |
| 370 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 371 | if (chan >= mTxPriorityQueues.size()) { |
| 372 | LOG(ALERT) << "Invalid channel " << chan; |
| 373 | return; |
| 374 | } |
| 375 | |
Thomas Tsou | 2d0c00b | 2013-11-14 15:28:23 -0500 | [diff] [blame] | 376 | if (wTime.TN() > 7) { |
| 377 | LOG(ALERT) << "Received burst with invalid slot " << wTime.TN(); |
| 378 | return; |
| 379 | } |
| 380 | |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 381 | /* Use the number of bits as the EDGE burst indicator */ |
| 382 | if (bits.size() == EDGE_BURST_NBITS) |
| 383 | burst = modulateEdgeBurst(bits, mSPSTx); |
| 384 | else |
| 385 | burst = modulateBurst(bits, 8 + (wTime.TN() % 4 == 0), mSPSTx); |
| 386 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 387 | scaleVector(*burst, txFullScale * pow(10, -RSSI / 10)); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 388 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 389 | radio_burst = new radioVector(wTime, burst); |
| 390 | |
| 391 | mTxPriorityQueues[chan].write(radio_burst); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 392 | } |
| 393 | |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 394 | void Transceiver::updateFillerTable(size_t chan, radioVector *burst) |
| 395 | { |
| 396 | int TN, modFN; |
| 397 | TransceiverState *state = &mStates[chan]; |
| 398 | |
| 399 | TN = burst->getTime().TN(); |
| 400 | modFN = burst->getTime().FN() % state->fillerModulus[TN]; |
| 401 | |
| 402 | delete state->fillerTable[modFN][TN]; |
| 403 | state->fillerTable[modFN][TN] = burst->getVector(); |
| 404 | burst->setVector(NULL); |
| 405 | } |
| 406 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 407 | void Transceiver::pushRadioVector(GSM::Time &nowTime) |
| 408 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 409 | int TN, modFN; |
| 410 | radioVector *burst; |
| 411 | TransceiverState *state; |
| 412 | std::vector<signalVector *> bursts(mChans); |
| 413 | std::vector<bool> zeros(mChans); |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 414 | std::vector<bool> filler(mChans, true); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 415 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 416 | for (size_t i = 0; i < mChans; i ++) { |
| 417 | state = &mStates[i]; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 418 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 419 | while ((burst = mTxPriorityQueues[i].getStaleBurst(nowTime))) { |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 420 | LOGCHAN(i, DMAIN, NOTICE) << "dumping STALE burst in TRX->SDR interface (" |
Pau Espin Pedrol | f37b0ad | 2018-04-25 18:01:27 +0200 | [diff] [blame] | 421 | << burst->getTime() <<" vs " << nowTime << "), retrans=" << state->mRetrans; |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 422 | if (state->mRetrans) |
| 423 | updateFillerTable(i, burst); |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 424 | delete burst; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 425 | } |
| 426 | |
| 427 | TN = nowTime.TN(); |
| 428 | modFN = nowTime.FN() % state->fillerModulus[TN]; |
| 429 | |
| 430 | bursts[i] = state->fillerTable[modFN][TN]; |
| 431 | zeros[i] = state->chanType[TN] == NONE; |
| 432 | |
| 433 | if ((burst = mTxPriorityQueues[i].getCurrentBurst(nowTime))) { |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 434 | bursts[i] = burst->getVector(); |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 435 | |
| 436 | if (state->mRetrans) { |
| 437 | updateFillerTable(i, burst); |
| 438 | } else { |
| 439 | burst->setVector(NULL); |
| 440 | filler[i] = false; |
| 441 | } |
| 442 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 443 | delete burst; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 444 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 445 | } |
| 446 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 447 | mRadioInterface->driveTransmitRadio(bursts, zeros); |
| 448 | |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 449 | for (size_t i = 0; i < mChans; i++) { |
| 450 | if (!filler[i]) |
| 451 | delete bursts[i]; |
| 452 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 453 | } |
| 454 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 455 | void Transceiver::setModulus(size_t timeslot, size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 456 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 457 | TransceiverState *state = &mStates[chan]; |
| 458 | |
| 459 | switch (state->chanType[timeslot]) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 460 | case NONE: |
| 461 | case I: |
| 462 | case II: |
| 463 | case III: |
| 464 | case FILL: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 465 | state->fillerModulus[timeslot] = 26; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 466 | break; |
| 467 | case IV: |
| 468 | case VI: |
| 469 | case V: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 470 | state->fillerModulus[timeslot] = 51; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 471 | break; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 472 | //case V: |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 473 | case VII: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 474 | state->fillerModulus[timeslot] = 102; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 475 | break; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 476 | case XIII: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 477 | state->fillerModulus[timeslot] = 52; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 478 | break; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 479 | default: |
| 480 | break; |
| 481 | } |
| 482 | } |
| 483 | |
| 484 | |
Alexander Chemeris | f9e78be | 2017-03-17 15:00:34 -0700 | [diff] [blame] | 485 | CorrType Transceiver::expectedCorrType(GSM::Time currTime, |
| 486 | size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 487 | { |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 488 | 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 }; |
| 489 | 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, |
| 490 | 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 }; |
| 491 | 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, |
| 492 | 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] | 493 | TransceiverState *state = &mStates[chan]; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 494 | unsigned burstTN = currTime.TN(); |
| 495 | unsigned burstFN = currTime.FN(); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 496 | int subch; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 497 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 498 | switch (state->chanType[burstTN]) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 499 | case NONE: |
| 500 | return OFF; |
| 501 | break; |
| 502 | case FILL: |
| 503 | return IDLE; |
| 504 | break; |
| 505 | case I: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 506 | // TODO: Are we expecting RACH on an IDLE frame? |
| 507 | /* if (burstFN % 26 == 25) |
| 508 | return IDLE;*/ |
| 509 | if (mHandover[burstTN][0]) |
| 510 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 511 | return TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 512 | break; |
| 513 | case II: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 514 | subch = tchh_subslot[burstFN % 26]; |
| 515 | if (subch == 1) |
| 516 | return IDLE; |
| 517 | if (mHandover[burstTN][0]) |
| 518 | return RACH; |
ttsou | 2064297 | 2013-03-27 22:00:25 +0000 | [diff] [blame] | 519 | return TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 520 | break; |
| 521 | case III: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 522 | subch = tchh_subslot[burstFN % 26]; |
| 523 | if (mHandover[burstTN][subch]) |
| 524 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 525 | return TSC; |
| 526 | break; |
| 527 | case IV: |
| 528 | case VI: |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 529 | return mExtRACH ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 530 | break; |
| 531 | case V: { |
| 532 | int mod51 = burstFN % 51; |
| 533 | if ((mod51 <= 36) && (mod51 >= 14)) |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 534 | return mExtRACH ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 535 | else if ((mod51 == 4) || (mod51 == 5)) |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 536 | return mExtRACH ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 537 | else if ((mod51 == 45) || (mod51 == 46)) |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 538 | return mExtRACH ? EXT_RACH : RACH; |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 539 | else if (mHandover[burstTN][sdcch4_subslot[burstFN % 102]]) |
| 540 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 541 | else |
| 542 | return TSC; |
| 543 | break; |
| 544 | } |
| 545 | case VII: |
| 546 | if ((burstFN % 51 <= 14) && (burstFN % 51 >= 12)) |
| 547 | return IDLE; |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 548 | else if (mHandover[burstTN][sdcch8_subslot[burstFN % 102]]) |
| 549 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 550 | else |
| 551 | return TSC; |
| 552 | break; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 553 | case XIII: { |
| 554 | int mod52 = burstFN % 52; |
| 555 | if ((mod52 == 12) || (mod52 == 38)) |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 556 | return mExtRACH ? EXT_RACH : RACH; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 557 | else if ((mod52 == 25) || (mod52 == 51)) |
| 558 | return IDLE; |
| 559 | else |
| 560 | return TSC; |
| 561 | break; |
| 562 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 563 | case LOOPBACK: |
| 564 | if ((burstFN % 51 <= 50) && (burstFN % 51 >=48)) |
| 565 | return IDLE; |
| 566 | else |
| 567 | return TSC; |
| 568 | break; |
| 569 | default: |
| 570 | return OFF; |
| 571 | break; |
| 572 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 573 | } |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 574 | |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 575 | void writeToFile(radioVector *radio_burst, size_t chan) |
| 576 | { |
| 577 | GSM::Time time = radio_burst->getTime(); |
| 578 | std::ostringstream fname; |
| 579 | fname << chan << "_" << time.FN() << "_" << time.TN() << ".fc"; |
| 580 | std::ofstream outfile (fname.str().c_str(), std::ofstream::binary); |
| 581 | outfile.write((char*)radio_burst->getVector()->begin(), radio_burst->getVector()->size() * 2 * sizeof(float)); |
| 582 | outfile.close(); |
| 583 | } |
| 584 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 585 | /* |
| 586 | * Pull bursts from the FIFO and handle according to the slot |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 587 | * and burst correlation type. Equalzation is currently disabled. |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 588 | */ |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 589 | bool Transceiver::pullRadioVector(size_t chan, struct trx_ul_burst_ind *bi) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 590 | { |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 591 | int rc; |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 592 | struct estim_burst_params ebp; |
| 593 | float max = -1.0, avg = 0.0; |
Pau Espin Pedrol | 9bb24a1 | 2019-07-03 15:43:03 +0200 | [diff] [blame] | 594 | unsigned max_toa; |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 595 | int max_i = -1; |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 596 | signalVector *burst; |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 597 | GSM::Time burstTime; |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 598 | SoftVector *rxBurst; |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 599 | TransceiverState *state = &mStates[chan]; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 600 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 601 | /* Blocking FIFO read */ |
| 602 | radioVector *radio_burst = mReceiveFIFO[chan]->read(); |
| 603 | if (!radio_burst) |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 604 | return false; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 605 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 606 | /* Set time and determine correlation type */ |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 607 | burstTime = radio_burst->getTime(); |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 608 | CorrType type = expectedCorrType(burstTime, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 609 | |
Tom Tsou | 64464e6 | 2016-07-01 03:46:46 -0700 | [diff] [blame] | 610 | /* Enable 8-PSK burst detection if EDGE is enabled */ |
| 611 | if (mEdge && (type == TSC)) |
| 612 | type = EDGE; |
| 613 | |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 614 | /* Debug: dump bursts to disk */ |
| 615 | /* bits 0-7 - chan 0 timeslots |
| 616 | * bits 8-15 - chan 1 timeslots */ |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 617 | if (mWriteBurstToDiskMask & ((1<<bi->tn) << (8*chan))) |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 618 | writeToFile(radio_burst, chan); |
| 619 | |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 620 | /* No processing if the timeslot is off. |
| 621 | * Not even power level or noise calculation. */ |
| 622 | if (type == OFF) { |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 623 | delete radio_burst; |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 624 | return false; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 625 | } |
kurtis.heimerl | 3ed6fb7 | 2011-11-26 03:17:52 +0000 | [diff] [blame] | 626 | |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 627 | /* Initialize struct bi */ |
| 628 | bi->nbits = 0; |
| 629 | bi->fn = burstTime.FN(); |
| 630 | bi->tn = burstTime.TN(); |
| 631 | bi->rssi = 0.0; |
| 632 | bi->toa = 0.0; |
| 633 | bi->noise = 0.0; |
| 634 | bi->idle = false; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 635 | bi->modulation = MODULATION_GMSK; |
| 636 | bi->tss = 0; /* TODO: we only support tss 0 right now */ |
| 637 | bi->tsc = 0; |
| 638 | bi->ci = 0.0; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 639 | |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 640 | /* Select the diversity channel with highest energy */ |
| 641 | for (size_t i = 0; i < radio_burst->chans(); i++) { |
Alexander Chemeris | 1dd05cf | 2017-03-15 23:23:36 +0300 | [diff] [blame] | 642 | float pow = energyDetect(*radio_burst->getVector(i), 20 * mSPSRx); |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 643 | if (pow > max) { |
| 644 | max = pow; |
| 645 | max_i = i; |
| 646 | } |
| 647 | avg += pow; |
| 648 | } |
| 649 | |
| 650 | if (max_i < 0) { |
| 651 | LOG(ALERT) << "Received empty burst"; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 652 | goto ret_idle; |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 653 | } |
| 654 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 655 | /* Average noise on diversity paths and update global levels */ |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 656 | burst = radio_burst->getVector(max_i); |
Thomas Tsou | ef25dba | 2013-11-14 15:31:24 -0500 | [diff] [blame] | 657 | avg = sqrt(avg / radio_burst->chans()); |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 658 | |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 659 | if (type == IDLE) { |
| 660 | /* Update noise levels */ |
| 661 | state->mNoises.insert(avg); |
| 662 | state->mNoiseLev = state->mNoises.avg(); |
Pau Espin Pedrol | be9cd66 | 2019-07-03 15:00:56 +0200 | [diff] [blame] | 663 | } |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 664 | |
Pau Espin Pedrol | be9cd66 | 2019-07-03 15:00:56 +0200 | [diff] [blame] | 665 | bi->rssi = 20.0 * log10(rxFullScale / avg) + rssiOffset; |
| 666 | bi->noise = 20.0 * log10(rxFullScale / state->mNoiseLev) + rssiOffset; |
| 667 | |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 668 | if (type == IDLE) |
| 669 | goto ret_idle; |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 670 | |
Pau Espin Pedrol | 9bb24a1 | 2019-07-03 15:43:03 +0200 | [diff] [blame] | 671 | max_toa = (type == RACH || type == EXT_RACH) ? |
| 672 | mMaxExpectedDelayAB : mMaxExpectedDelayNB; |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 673 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 674 | /* Detect normal or RACH bursts */ |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 675 | rc = detectAnyBurst(*burst, mTSC, BURST_THRESH, mSPSRx, type, max_toa, &ebp); |
Pau Espin Pedrol | d6dbb1b | 2019-07-03 15:23:56 +0200 | [diff] [blame] | 676 | if (rc <= 0) { |
| 677 | if (rc == -SIGERR_CLIP) |
Alexander Chemeris | 954b118 | 2015-06-04 15:39:41 -0400 | [diff] [blame] | 678 | LOG(WARNING) << "Clipping detected on received RACH or Normal Burst"; |
Pau Espin Pedrol | d6dbb1b | 2019-07-03 15:23:56 +0200 | [diff] [blame] | 679 | else if (rc != SIGERR_NONE) |
Alexander Chemeris | 954b118 | 2015-06-04 15:39:41 -0400 | [diff] [blame] | 680 | LOG(WARNING) << "Unhandled RACH or Normal Burst detection error"; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 681 | goto ret_idle; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 682 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 683 | |
Pau Espin Pedrol | d6dbb1b | 2019-07-03 15:23:56 +0200 | [diff] [blame] | 684 | type = (CorrType) rc; |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 685 | bi->toa = ebp.toa; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 686 | bi->tsc = ebp.tsc; |
| 687 | bi->ci = ebp.ci; |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 688 | rxBurst = demodAnyBurst(*burst, mSPSRx, ebp.amp, ebp.toa, type); |
Thomas Tsou | ef25dba | 2013-11-14 15:31:24 -0500 | [diff] [blame] | 689 | |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 690 | /* EDGE demodulator returns 444 (gSlotLen * 3) bits */ |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 691 | if (rxBurst->size() == EDGE_BURST_NBITS) { |
| 692 | bi->modulation = MODULATION_8PSK; |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 693 | bi->nbits = EDGE_BURST_NBITS; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 694 | } else { /* size() here is actually gSlotLen + 8, due to guard periods */ |
| 695 | bi->modulation = MODULATION_GMSK; |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 696 | bi->nbits = gSlotLen; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 697 | } |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 698 | |
Pau Espin Pedrol | 25ae190 | 2019-07-01 16:40:44 +0200 | [diff] [blame] | 699 | // Convert -1..+1 soft bits to 0..1 soft bits |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 700 | vectorSlicer(bi->rx_burst, rxBurst->begin(), bi->nbits); |
Pau Espin Pedrol | 25ae190 | 2019-07-01 16:40:44 +0200 | [diff] [blame] | 701 | |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 702 | delete rxBurst; |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 703 | delete radio_burst; |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 704 | return true; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 705 | |
| 706 | ret_idle: |
| 707 | bi->idle = true; |
| 708 | delete radio_burst; |
| 709 | return false; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 710 | } |
| 711 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 712 | void Transceiver::reset() |
| 713 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 714 | for (size_t i = 0; i < mTxPriorityQueues.size(); i++) |
| 715 | mTxPriorityQueues[i].clear(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 716 | } |
| 717 | |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 718 | |
Vadim Yanitskiy | bd0efb0 | 2018-03-09 02:45:07 +0700 | [diff] [blame] | 719 | #define MAX_PACKET_LENGTH 100 |
| 720 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 721 | /** |
| 722 | * Matches a buffer with a command. |
| 723 | * @param buf a buffer to look command in |
| 724 | * @param cmd a command to look in buffer |
| 725 | * @param params pointer to arguments, or NULL |
| 726 | * @return true if command matches, otherwise false |
| 727 | */ |
| 728 | static bool match_cmd(char *buf, |
| 729 | const char *cmd, char **params) |
| 730 | { |
| 731 | size_t cmd_len = strlen(cmd); |
| 732 | |
| 733 | /* Check a command itself */ |
| 734 | if (strncmp(buf, cmd, cmd_len)) |
| 735 | return false; |
| 736 | |
| 737 | /* A command has arguments */ |
| 738 | if (params != NULL) { |
| 739 | /* Make sure there is a space */ |
| 740 | if (buf[cmd_len] != ' ') |
| 741 | return false; |
| 742 | |
| 743 | /* Update external pointer */ |
| 744 | *params = buf + cmd_len + 1; |
| 745 | } |
| 746 | |
| 747 | return true; |
| 748 | } |
| 749 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 750 | void Transceiver::driveControl(size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 751 | { |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 752 | char buffer[MAX_PACKET_LENGTH + 1]; |
| 753 | char response[MAX_PACKET_LENGTH + 1]; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 754 | char *command, *params; |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 755 | int msgLen; |
Thomas Tsou | d647ec5 | 2013-10-29 15:17:34 -0400 | [diff] [blame] | 756 | |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 757 | /* Attempt to read from control socket */ |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 758 | msgLen = read(mCtrlSockets[chan], buffer, MAX_PACKET_LENGTH); |
| 759 | if (msgLen <= 0) { |
| 760 | LOGCHAN(chan, DTRXCTRL, WARNING) << "mCtrlSockets read(" << mCtrlSockets[chan] << ") failed: " << msgLen; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 761 | return; |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 762 | } |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 763 | |
| 764 | /* Zero-terminate received string */ |
| 765 | buffer[msgLen] = '\0'; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 766 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 767 | /* Verify a command signature */ |
| 768 | if (strncmp(buffer, "CMD ", 4)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 769 | LOGC(DTRXCTRL, WARNING) << "bogus message on control interface"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 770 | return; |
| 771 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 772 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 773 | /* Set command pointer */ |
| 774 | command = buffer + 4; |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 775 | LOGCHAN(chan, DTRXCTRL, INFO) << "command is '" << command << "'"; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 776 | |
| 777 | if (match_cmd(command, "POWEROFF", NULL)) { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 778 | stop(); |
| 779 | sprintf(response,"RSP POWEROFF 0"); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 780 | } else if (match_cmd(command, "POWERON", NULL)) { |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 781 | if (!start()) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 782 | sprintf(response,"RSP POWERON 1"); |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 783 | } else { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 784 | sprintf(response,"RSP POWERON 0"); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 785 | for (int i = 0; i < 8; i++) { |
| 786 | for (int j = 0; j < 8; j++) |
| 787 | mHandover[i][j] = false; |
| 788 | } |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 789 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 790 | } else if (match_cmd(command, "HANDOVER", ¶ms)) { |
Vadim Yanitskiy | c0c6d70 | 2018-03-09 05:08:23 +0700 | [diff] [blame] | 791 | unsigned ts = 0, ss = 0; |
| 792 | sscanf(params, "%u %u", &ts, &ss); |
| 793 | if (ts > 7 || ss > 7) { |
| 794 | sprintf(response, "RSP NOHANDOVER 1 %u %u", ts, ss); |
| 795 | } else { |
| 796 | mHandover[ts][ss] = true; |
| 797 | sprintf(response, "RSP HANDOVER 0 %u %u", ts, ss); |
| 798 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 799 | } else if (match_cmd(command, "NOHANDOVER", ¶ms)) { |
Vadim Yanitskiy | c0c6d70 | 2018-03-09 05:08:23 +0700 | [diff] [blame] | 800 | unsigned ts = 0, ss = 0; |
| 801 | sscanf(params, "%u %u", &ts, &ss); |
| 802 | if (ts > 7 || ss > 7) { |
| 803 | sprintf(response, "RSP NOHANDOVER 1 %u %u", ts, ss); |
| 804 | } else { |
| 805 | mHandover[ts][ss] = false; |
| 806 | sprintf(response, "RSP NOHANDOVER 0 %u %u", ts, ss); |
| 807 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 808 | } else if (match_cmd(command, "SETMAXDLY", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 809 | //set expected maximum time-of-arrival |
| 810 | int maxDelay; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 811 | sscanf(params, "%d", &maxDelay); |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 812 | mMaxExpectedDelayAB = maxDelay; // 1 GSM symbol is approx. 1 km |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 813 | sprintf(response,"RSP SETMAXDLY 0 %d",maxDelay); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 814 | } else if (match_cmd(command, "SETMAXDLYNB", ¶ms)) { |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 815 | //set expected maximum time-of-arrival |
| 816 | int maxDelay; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 817 | sscanf(params, "%d", &maxDelay); |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 818 | mMaxExpectedDelayNB = maxDelay; // 1 GSM symbol is approx. 1 km |
| 819 | sprintf(response,"RSP SETMAXDLYNB 0 %d",maxDelay); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 820 | } else if (match_cmd(command, "SETRXGAIN", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 821 | //set expected maximum time-of-arrival |
| 822 | int newGain; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 823 | sscanf(params, "%d", &newGain); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 824 | newGain = mRadioInterface->setRxGain(newGain, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 825 | sprintf(response,"RSP SETRXGAIN 0 %d",newGain); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 826 | } else if (match_cmd(command, "NOISELEV", NULL)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 827 | if (mOn) { |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 828 | float lev = mStates[chan].mNoiseLev; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 829 | sprintf(response,"RSP NOISELEV 0 %d", |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 830 | (int) round(20.0 * log10(rxFullScale / lev))); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 831 | } |
| 832 | else { |
| 833 | sprintf(response,"RSP NOISELEV 1 0"); |
| 834 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 835 | } else if (match_cmd(command, "SETPOWER", ¶ms)) { |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 836 | int power; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 837 | sscanf(params, "%d", &power); |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 838 | power = mRadioInterface->setPowerAttenuation(power, chan); |
| 839 | mStates[chan].mPower = power; |
| 840 | sprintf(response, "RSP SETPOWER 0 %d", power); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 841 | } else if (match_cmd(command, "ADJPOWER", ¶ms)) { |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 842 | int power, step; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 843 | sscanf(params, "%d", &step); |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 844 | power = mStates[chan].mPower + step; |
| 845 | power = mRadioInterface->setPowerAttenuation(power, chan); |
| 846 | mStates[chan].mPower = power; |
| 847 | sprintf(response, "RSP ADJPOWER 0 %d", power); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 848 | } else if (match_cmd(command, "RXTUNE", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 849 | // tune receiver |
| 850 | int freqKhz; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 851 | sscanf(params, "%d", &freqKhz); |
Thomas Tsou | 477b77c | 2013-11-15 16:13:59 -0500 | [diff] [blame] | 852 | mRxFreq = freqKhz * 1e3; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 853 | if (!mRadioInterface->tuneRx(mRxFreq, chan)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 854 | LOGC(DTRXCTRL, ALERT) << "RX failed to tune"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 855 | sprintf(response,"RSP RXTUNE 1 %d",freqKhz); |
| 856 | } |
| 857 | else |
| 858 | sprintf(response,"RSP RXTUNE 0 %d",freqKhz); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 859 | } else if (match_cmd(command, "TXTUNE", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 860 | // tune txmtr |
| 861 | int freqKhz; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 862 | sscanf(params, "%d", &freqKhz); |
Thomas Tsou | 477b77c | 2013-11-15 16:13:59 -0500 | [diff] [blame] | 863 | mTxFreq = freqKhz * 1e3; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 864 | if (!mRadioInterface->tuneTx(mTxFreq, chan)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 865 | LOGC(DTRXCTRL, ALERT) << "TX failed to tune"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 866 | sprintf(response,"RSP TXTUNE 1 %d",freqKhz); |
| 867 | } |
| 868 | else |
| 869 | sprintf(response,"RSP TXTUNE 0 %d",freqKhz); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 870 | } else if (match_cmd(command, "SETTSC", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 871 | // set TSC |
Thomas Tsou | 3f32ab5 | 2013-11-15 16:32:54 -0500 | [diff] [blame] | 872 | unsigned TSC; |
Vadim Yanitskiy | 8c6c5d2 | 2018-03-09 05:01:21 +0700 | [diff] [blame] | 873 | sscanf(params, "%u", &TSC); |
Tom Tsou | 6031734 | 2017-03-30 19:36:41 -0700 | [diff] [blame] | 874 | if (TSC > 7) { |
Thomas Tsou | d3fccea | 2013-11-15 14:22:53 -0500 | [diff] [blame] | 875 | sprintf(response, "RSP SETTSC 1 %d", TSC); |
Tom Tsou | 6031734 | 2017-03-30 19:36:41 -0700 | [diff] [blame] | 876 | } else { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 877 | LOGC(DTRXCTRL, NOTICE) << "Changing TSC from " << mTSC << " to " << TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 878 | mTSC = TSC; |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 879 | sprintf(response,"RSP SETTSC 0 %d", TSC); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 880 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 881 | } else if (match_cmd(command, "SETSLOT", ¶ms)) { |
Alexander Chemeris | 1fe5282 | 2015-05-20 12:02:29 -0700 | [diff] [blame] | 882 | // set slot type |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 883 | int corrCode; |
| 884 | int timeslot; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 885 | sscanf(params, "%d %d", ×lot, &corrCode); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 886 | if ((timeslot < 0) || (timeslot > 7)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 887 | LOGC(DTRXCTRL, WARNING) << "bogus message on control interface"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 888 | sprintf(response,"RSP SETSLOT 1 %d %d",timeslot,corrCode); |
| 889 | return; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 890 | } |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 891 | mStates[chan].chanType[timeslot] = (ChannelCombination) corrCode; |
| 892 | setModulus(timeslot, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 893 | sprintf(response,"RSP SETSLOT 0 %d %d",timeslot,corrCode); |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 894 | } else if (match_cmd(command, "SETFORMAT", ¶ms)) { |
| 895 | // set TRXD protocol version |
| 896 | unsigned version_recv; |
| 897 | sscanf(params, "%u", &version_recv); |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 898 | LOGCHAN(chan, DTRXCTRL, INFO) << "BTS requests TRXD version switch: " << version_recv; |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 899 | if (version_recv > TRX_DATA_FORMAT_VER) { |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 900 | LOGCHAN(chan, DTRXCTRL, INFO) << "rejecting TRXD version " << version_recv |
| 901 | << "in favor of " << TRX_DATA_FORMAT_VER; |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 902 | sprintf(response, "RSP SETFORMAT %u %u", TRX_DATA_FORMAT_VER, version_recv); |
| 903 | } else { |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 904 | LOGCHAN(chan, DTRXCTRL, NOTICE) << "switching to TRXD version " << version_recv; |
| 905 | mVersionTRXD[chan] = version_recv; |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 906 | sprintf(response, "RSP SETFORMAT %u %u", version_recv, version_recv); |
| 907 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 908 | } else if (match_cmd(command, "_SETBURSTTODISKMASK", ¶ms)) { |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 909 | // debug command! may change or disapear without notice |
| 910 | // set a mask which bursts to dump to disk |
| 911 | int mask; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 912 | sscanf(params, "%d", &mask); |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 913 | mWriteBurstToDiskMask = mask; |
| 914 | sprintf(response,"RSP _SETBURSTTODISKMASK 0 %d",mask); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 915 | } else { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 916 | LOGC(DTRXCTRL, WARNING) << "bogus command " << command << " on control interface."; |
Alexander Chemeris | 4438a9f | 2013-04-08 00:14:08 +0200 | [diff] [blame] | 917 | sprintf(response,"RSP ERR 1"); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 918 | } |
| 919 | |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 920 | LOGCHAN(chan, DTRXCTRL, INFO) << "response is '" << response << "'"; |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 921 | msgLen = write(mCtrlSockets[chan], response, strlen(response) + 1); |
| 922 | if (msgLen <= 0) |
| 923 | LOGCHAN(chan, DTRXCTRL, WARNING) << "mCtrlSockets write(" << mCtrlSockets[chan] << ") failed: " << msgLen; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 924 | } |
| 925 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 926 | bool Transceiver::driveTxPriorityQueue(size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 927 | { |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 928 | int msgLen; |
Tom Tsou | e887108 | 2016-07-01 02:46:04 -0700 | [diff] [blame] | 929 | int burstLen; |
| 930 | char buffer[EDGE_BURST_NBITS + 50]; |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 931 | struct trxd_hdr_common *chdr; |
| 932 | uint32_t fn; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 933 | |
| 934 | // check data socket |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 935 | msgLen = read(mDataSockets[chan], buffer, sizeof(buffer)); |
| 936 | if (msgLen <= 0) { |
| 937 | LOGCHAN(chan, DTRXCTRL, WARNING) << "mDataSockets read(" << mCtrlSockets[chan] << ") failed: " << msgLen; |
| 938 | return false; |
| 939 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 940 | |
Tom Tsou | e887108 | 2016-07-01 02:46:04 -0700 | [diff] [blame] | 941 | if (msgLen == gSlotLen + 1 + 4 + 1) { |
| 942 | burstLen = gSlotLen; |
| 943 | } else if (msgLen == EDGE_BURST_NBITS + 1 + 4 + 1) { |
| 944 | if (mSPSTx != 4) |
| 945 | return false; |
| 946 | |
| 947 | burstLen = EDGE_BURST_NBITS; |
| 948 | } else { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 949 | LOG(ERR) << "badly formatted packet on GSM->TRX interface"; |
| 950 | return false; |
| 951 | } |
| 952 | |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 953 | /* Common header part: HDR version, TDMA TN & FN */ |
| 954 | chdr = (struct trxd_hdr_common *) buffer; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 955 | |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 956 | /* Convert TDMA FN to the host endianness */ |
| 957 | fn = osmo_load32be(&chdr->fn); |
| 958 | |
Vadim Yanitskiy | dd571c6 | 2019-07-15 23:56:56 +0700 | [diff] [blame] | 959 | /* Make sure we support the received header format */ |
| 960 | switch (chdr->version) { |
| 961 | case 0: |
| 962 | /* Version 1 has the same format */ |
| 963 | case 1: |
| 964 | break; |
| 965 | |
| 966 | default: |
| 967 | LOG(ERR) << "Rx TRXD message with unknown header version " << chdr->version; |
| 968 | return false; |
| 969 | } |
| 970 | |
Vadim Yanitskiy | 56c5f29 | 2019-07-16 00:02:56 +0700 | [diff] [blame] | 971 | LOG(DEBUG) << "Rx TRXD message (hdr_ver=" << chdr->version << "): " |
| 972 | << "fn=" << fn << ", tn=" << chdr->tn << ", " |
| 973 | << "burst_len=" << burstLen; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 974 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 975 | int RSSI = (int) buffer[5]; |
Tom Tsou | 7c741ec | 2016-07-19 11:20:59 -0700 | [diff] [blame] | 976 | BitVector newBurst(burstLen); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 977 | BitVector::iterator itr = newBurst.begin(); |
| 978 | char *bufferItr = buffer+6; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 979 | while (itr < newBurst.end()) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 980 | *itr++ = *bufferItr++; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 981 | |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 982 | GSM::Time currTime = GSM::Time(fn, chdr->tn); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 983 | |
| 984 | addRadioVector(chan, newBurst, RSSI, currTime); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 985 | |
| 986 | return true; |
| 987 | |
| 988 | |
| 989 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 990 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 991 | void Transceiver::driveReceiveRadio() |
| 992 | { |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 993 | int rc = mRadioInterface->driveReceiveRadio(); |
| 994 | if (rc == 0) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 995 | usleep(100000); |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 996 | } else if (rc < 0) { |
| 997 | LOG(FATAL) << "radio Interface receive failed, requesting stop."; |
Pau Espin Pedrol | b426e4a | 2019-06-04 12:39:28 +0200 | [diff] [blame] | 998 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
Pau Espin Pedrol | 934da48 | 2017-07-04 16:25:20 +0200 | [diff] [blame] | 999 | } else if (mForceClockInterface || mTransmitDeadlineClock > mLastClockUpdateTime + GSM::Time(216,0)) { |
| 1000 | mForceClockInterface = false; |
| 1001 | writeClockInterface(); |
Alexander Chemeris | 6a2bf0d | 2015-05-24 19:28:09 -0400 | [diff] [blame] | 1002 | } |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1003 | } |
| 1004 | |
Pau Espin Pedrol | 607a414 | 2019-07-01 13:56:17 +0200 | [diff] [blame] | 1005 | 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] | 1006 | { |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 1007 | std::ostringstream os; |
| 1008 | for (size_t i=0; i < bi->nbits; i++) { |
| 1009 | if (bi->rx_burst[i] > 0.5) os << "1"; |
| 1010 | else if (bi->rx_burst[i] > 0.25) os << "|"; |
| 1011 | else if (bi->rx_burst[i] > 0.0) os << "'"; |
| 1012 | else os << "-"; |
| 1013 | } |
| 1014 | |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 1015 | LOG(DEBUG) << std::fixed << std::right |
Alexander Chemeris | 58e9591 | 2016-03-25 18:20:28 +0300 | [diff] [blame] | 1016 | << " chan: " << chan |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 1017 | << " time: " << bi->tn << ":" << bi->fn |
Pau Espin Pedrol | 607a414 | 2019-07-01 13:56:17 +0200 | [diff] [blame] | 1018 | << " RSSI: " << std::setw(5) << std::setprecision(1) << (bi->rssi - rssiOffset) |
| 1019 | << "dBFS/" << std::setw(6) << -bi->rssi << "dBm" |
| 1020 | << " noise: " << std::setw(5) << std::setprecision(1) << (bi->noise - rssiOffset) |
| 1021 | << "dBFS/" << std::setw(6) << -bi->noise << "dBm" |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1022 | << " TOA: " << std::setw(5) << std::setprecision(2) << bi->toa |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 1023 | << " C/I: " << std::setw(5) << std::setprecision(2) << bi->ci << "dB" |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 1024 | << " bits: " << os; |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 1025 | } |
| 1026 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1027 | void Transceiver::driveReceiveFIFO(size_t chan) |
| 1028 | { |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1029 | struct trx_ul_burst_ind bi; |
| 1030 | |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1031 | if (!pullRadioVector(chan, &bi)) |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1032 | return; |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1033 | if (!bi.idle) |
| 1034 | logRxBurst(chan, &bi); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1035 | |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 1036 | switch (mVersionTRXD[chan]) { |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1037 | case 0: |
| 1038 | trxd_send_burst_ind_v0(chan, mDataSockets[chan], &bi); |
| 1039 | break; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 1040 | case 1: |
| 1041 | trxd_send_burst_ind_v1(chan, mDataSockets[chan], &bi); |
| 1042 | break; |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1043 | default: |
| 1044 | OSMO_ASSERT(false); |
| 1045 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1046 | } |
| 1047 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1048 | void Transceiver::driveTxFIFO() |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1049 | { |
| 1050 | |
| 1051 | /** |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1052 | Features a carefully controlled latency mechanism, to |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1053 | assure that transmit packets arrive at the radio/USRP |
| 1054 | before they need to be transmitted. |
| 1055 | |
| 1056 | Deadline clock indicates the burst that needs to be |
| 1057 | pushed into the FIFO right NOW. If transmit queue does |
| 1058 | not have a burst, stick in filler data. |
| 1059 | */ |
| 1060 | |
| 1061 | |
| 1062 | RadioClock *radioClock = (mRadioInterface->getClock()); |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1063 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1064 | if (mOn) { |
| 1065 | //radioClock->wait(); // wait until clock updates |
| 1066 | LOG(DEBUG) << "radio clock " << radioClock->get(); |
| 1067 | while (radioClock->get() + mTransmitLatency > mTransmitDeadlineClock) { |
| 1068 | // if underrun, then we're not providing bursts to radio/USRP fast |
| 1069 | // enough. Need to increase latency by one GSM frame. |
Thomas Tsou | 02d88d1 | 2013-04-05 15:36:30 -0400 | [diff] [blame] | 1070 | if (mRadioInterface->getWindowType() == RadioDevice::TX_WINDOW_USRP1) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1071 | if (mRadioInterface->isUnderrun()) { |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 1072 | // only update latency at the defined frame interval |
| 1073 | if (radioClock->get() > mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL)) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1074 | mTransmitLatency = mTransmitLatency + GSM::Time(1,0); |
Pau Espin Pedrol | 74bcc56 | 2018-10-02 17:30:28 +0200 | [diff] [blame] | 1075 | LOG(INFO) << "new latency: " << mTransmitLatency << " (underrun " |
| 1076 | << radioClock->get() << " vs " << mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL) << ")"; |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1077 | mLatencyUpdateTime = radioClock->get(); |
| 1078 | } |
| 1079 | } |
| 1080 | else { |
| 1081 | // if underrun hasn't occurred in the last sec (216 frames) drop |
| 1082 | // transmit latency by a timeslot |
Pau Espin Pedrol | e564f0f | 2018-04-24 18:43:51 +0200 | [diff] [blame] | 1083 | if (mTransmitLatency > mRadioInterface->minLatency()) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1084 | if (radioClock->get() > mLatencyUpdateTime + GSM::Time(216,0)) { |
| 1085 | mTransmitLatency.decTN(); |
| 1086 | LOG(INFO) << "reduced latency: " << mTransmitLatency; |
| 1087 | mLatencyUpdateTime = radioClock->get(); |
| 1088 | } |
| 1089 | } |
| 1090 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1091 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1092 | // time to push burst to transmit FIFO |
| 1093 | pushRadioVector(mTransmitDeadlineClock); |
| 1094 | mTransmitDeadlineClock.incTN(); |
| 1095 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1096 | } |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1097 | |
| 1098 | radioClock->wait(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1099 | } |
| 1100 | |
| 1101 | |
| 1102 | |
| 1103 | void Transceiver::writeClockInterface() |
| 1104 | { |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1105 | int msgLen; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1106 | char command[50]; |
| 1107 | // FIXME -- This should be adaptive. |
| 1108 | sprintf(command,"IND CLOCK %llu",(unsigned long long) (mTransmitDeadlineClock.FN()+2)); |
| 1109 | |
| 1110 | LOG(INFO) << "ClockInterface: sending " << command; |
| 1111 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1112 | msgLen = write(mClockSocket, command, strlen(command) + 1); |
| 1113 | if (msgLen <= 0) |
| 1114 | LOG(WARNING) << "mClockSocket write(" << mClockSocket << ") failed: " << msgLen; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1115 | |
| 1116 | mLastClockUpdateTime = mTransmitDeadlineClock; |
| 1117 | |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1118 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1119 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1120 | void *RxUpperLoopAdapter(TrxChanThParams *params) |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1121 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1122 | char thread_name[16]; |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1123 | Transceiver *trx = params->trx; |
| 1124 | size_t num = params->num; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1125 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1126 | free(params); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1127 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1128 | snprintf(thread_name, 16, "RxUpper%zu", num); |
| 1129 | set_selfthread_name(thread_name); |
| 1130 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1131 | while (1) { |
| 1132 | trx->driveReceiveFIFO(num); |
| 1133 | pthread_testcancel(); |
| 1134 | } |
| 1135 | return NULL; |
| 1136 | } |
| 1137 | |
| 1138 | void *RxLowerLoopAdapter(Transceiver *transceiver) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1139 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1140 | set_selfthread_name("RxLower"); |
| 1141 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1142 | while (1) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1143 | transceiver->driveReceiveRadio(); |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1144 | pthread_testcancel(); |
| 1145 | } |
| 1146 | return NULL; |
| 1147 | } |
| 1148 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1149 | void *TxLowerLoopAdapter(Transceiver *transceiver) |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1150 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1151 | set_selfthread_name("TxLower"); |
| 1152 | |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1153 | while (1) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1154 | transceiver->driveTxFIFO(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1155 | pthread_testcancel(); |
| 1156 | } |
| 1157 | return NULL; |
| 1158 | } |
| 1159 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1160 | void *ControlServiceLoopAdapter(TrxChanThParams *params) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1161 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1162 | char thread_name[16]; |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1163 | Transceiver *trx = params->trx; |
| 1164 | size_t num = params->num; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1165 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1166 | free(params); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1167 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1168 | snprintf(thread_name, 16, "CtrlService%zu", num); |
| 1169 | set_selfthread_name(thread_name); |
| 1170 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1171 | while (1) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1172 | trx->driveControl(num); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1173 | pthread_testcancel(); |
| 1174 | } |
| 1175 | return NULL; |
| 1176 | } |
| 1177 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1178 | void *TxUpperLoopAdapter(TrxChanThParams *params) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1179 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1180 | char thread_name[16]; |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1181 | Transceiver *trx = params->trx; |
| 1182 | size_t num = params->num; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1183 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1184 | free(params); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1185 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1186 | snprintf(thread_name, 16, "TxUpper%zu", num); |
| 1187 | set_selfthread_name(thread_name); |
| 1188 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1189 | while (1) { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 1190 | trx->driveTxPriorityQueue(num); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1191 | pthread_testcancel(); |
| 1192 | } |
| 1193 | return NULL; |
| 1194 | } |