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); |
Pau Espin Pedrol | e7195ac | 2019-08-26 10:55:04 +0200 | [diff] [blame] | 215 | if (mClockSocket < 0) |
| 216 | return false; |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 217 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 218 | for (size_t i = 0; i < mChans; i++) { |
Thomas Tsou | e1ce925 | 2013-11-13 22:40:44 -0500 | [diff] [blame] | 219 | c_srcport = mBasePort + 2 * i + 1; |
| 220 | c_dstport = mBasePort + 2 * i + 101; |
| 221 | d_srcport = mBasePort + 2 * i + 2; |
| 222 | d_dstport = mBasePort + 2 * i + 102; |
| 223 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 224 | mCtrlSockets[i] = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
| 225 | mLocalAddr.c_str(), c_srcport, |
| 226 | mRemoteAddr.c_str(), c_dstport, |
| 227 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
| 228 | if (mCtrlSockets[i] < 0) |
| 229 | return false; |
| 230 | |
| 231 | mDataSockets[i] = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
| 232 | mLocalAddr.c_str(), d_srcport, |
| 233 | mRemoteAddr.c_str(), d_dstport, |
| 234 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
| 235 | if (mCtrlSockets[i] < 0) |
| 236 | return false; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 237 | } |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 238 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 239 | /* Randomize the central clock */ |
| 240 | GSM::Time startTime(random() % gHyperframe, 0); |
| 241 | mRadioInterface->getClock()->set(startTime); |
| 242 | mTransmitDeadlineClock = startTime; |
| 243 | mLastClockUpdateTime = startTime; |
| 244 | mLatencyUpdateTime = startTime; |
| 245 | |
| 246 | /* Start control threads */ |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 247 | for (size_t i = 0; i < mChans; i++) { |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 248 | TrxChanThParams *params = (TrxChanThParams *)malloc(sizeof(struct TrxChanThParams)); |
| 249 | params->trx = this; |
| 250 | params->num = i; |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 251 | mControlServiceLoopThreads[i] = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 252 | mControlServiceLoopThreads[i]->start((void * (*)(void*)) |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 253 | ControlServiceLoopAdapter, (void*) params); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 254 | |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 255 | if (i && filler == FILLER_DUMMY) |
| 256 | filler = FILLER_ZERO; |
| 257 | |
Alexander Chemeris | 37c52c7 | 2016-03-25 18:28:34 +0300 | [diff] [blame] | 258 | mStates[i].init(filler, mSPSTx, txFullScale, rtsc, rach_delay); |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 259 | } |
| 260 | |
| 261 | return true; |
| 262 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 263 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 264 | /* |
| 265 | * Start the transceiver |
| 266 | * |
| 267 | * Submit command(s) to the radio device to commence streaming samples and |
| 268 | * launch threads to handle sample I/O. Re-synchronize the transmit burst |
| 269 | * counters to the central radio clock here as well. |
| 270 | */ |
| 271 | bool Transceiver::start() |
| 272 | { |
| 273 | ScopedLock lock(mLock); |
| 274 | |
| 275 | if (mOn) { |
| 276 | LOG(ERR) << "Transceiver already running"; |
Ivan Kluchnikov | 194a9b1 | 2015-04-23 17:08:27 +0300 | [diff] [blame] | 277 | return true; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 278 | } |
| 279 | |
| 280 | LOG(NOTICE) << "Starting the transceiver"; |
| 281 | |
| 282 | GSM::Time time = mRadioInterface->getClock()->get(); |
| 283 | mTransmitDeadlineClock = time; |
| 284 | mLastClockUpdateTime = time; |
| 285 | mLatencyUpdateTime = time; |
| 286 | |
| 287 | if (!mRadioInterface->start()) { |
| 288 | LOG(ALERT) << "Device failed to start"; |
| 289 | return false; |
| 290 | } |
| 291 | |
| 292 | /* Device is running - launch I/O threads */ |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 293 | mRxLowerLoopThread = new Thread(stackSize); |
| 294 | mTxLowerLoopThread = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 295 | mTxLowerLoopThread->start((void * (*)(void*)) |
| 296 | TxLowerLoopAdapter,(void*) this); |
| 297 | mRxLowerLoopThread->start((void * (*)(void*)) |
| 298 | RxLowerLoopAdapter,(void*) this); |
| 299 | |
| 300 | /* Launch uplink and downlink burst processing threads */ |
| 301 | for (size_t i = 0; i < mChans; i++) { |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 302 | TrxChanThParams *params = (TrxChanThParams *)malloc(sizeof(struct TrxChanThParams)); |
| 303 | params->trx = this; |
| 304 | params->num = i; |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 305 | mRxServiceLoopThreads[i] = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 306 | mRxServiceLoopThreads[i]->start((void * (*)(void*)) |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 307 | RxUpperLoopAdapter, (void*) params); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 308 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 309 | params = (TrxChanThParams *)malloc(sizeof(struct TrxChanThParams)); |
| 310 | params->trx = this; |
| 311 | params->num = i; |
Eric Wild | ac0487e | 2019-06-17 13:02:44 +0200 | [diff] [blame] | 312 | mTxPriorityQueueServiceLoopThreads[i] = new Thread(stackSize); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 313 | mTxPriorityQueueServiceLoopThreads[i]->start((void * (*)(void*)) |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 314 | TxUpperLoopAdapter, (void*) params); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 315 | } |
| 316 | |
Pau Espin Pedrol | 934da48 | 2017-07-04 16:25:20 +0200 | [diff] [blame] | 317 | mForceClockInterface = true; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 318 | mOn = true; |
| 319 | return true; |
| 320 | } |
| 321 | |
| 322 | /* |
| 323 | * Stop the transceiver |
| 324 | * |
| 325 | * Perform stopping by disabling receive streaming and issuing cancellation |
| 326 | * requests to running threads. Most threads will timeout and terminate once |
| 327 | * device is disabled, but the transmit loop may block waiting on the central |
| 328 | * UMTS clock. Explicitly signal the clock to make sure that the transmit loop |
| 329 | * makes it to the thread cancellation point. |
| 330 | */ |
| 331 | void Transceiver::stop() |
| 332 | { |
| 333 | ScopedLock lock(mLock); |
| 334 | |
| 335 | if (!mOn) |
| 336 | return; |
| 337 | |
| 338 | LOG(NOTICE) << "Stopping the transceiver"; |
| 339 | mTxLowerLoopThread->cancel(); |
| 340 | mRxLowerLoopThread->cancel(); |
Tom Tsou | d67bd60 | 2017-06-15 15:35:02 -0700 | [diff] [blame] | 341 | mTxLowerLoopThread->join(); |
| 342 | mRxLowerLoopThread->join(); |
| 343 | delete mTxLowerLoopThread; |
| 344 | delete mRxLowerLoopThread; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 345 | |
| 346 | for (size_t i = 0; i < mChans; i++) { |
| 347 | mRxServiceLoopThreads[i]->cancel(); |
| 348 | mTxPriorityQueueServiceLoopThreads[i]->cancel(); |
| 349 | } |
| 350 | |
| 351 | LOG(INFO) << "Stopping the device"; |
| 352 | mRadioInterface->stop(); |
| 353 | |
| 354 | for (size_t i = 0; i < mChans; i++) { |
| 355 | mRxServiceLoopThreads[i]->join(); |
| 356 | mTxPriorityQueueServiceLoopThreads[i]->join(); |
| 357 | delete mRxServiceLoopThreads[i]; |
| 358 | delete mTxPriorityQueueServiceLoopThreads[i]; |
| 359 | |
| 360 | mTxPriorityQueues[i].clear(); |
| 361 | } |
| 362 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 363 | mOn = false; |
| 364 | LOG(NOTICE) << "Transceiver stopped"; |
| 365 | } |
| 366 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 367 | void Transceiver::addRadioVector(size_t chan, BitVector &bits, |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 368 | int RSSI, GSM::Time &wTime) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 369 | { |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 370 | signalVector *burst; |
| 371 | radioVector *radio_burst; |
| 372 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 373 | if (chan >= mTxPriorityQueues.size()) { |
| 374 | LOG(ALERT) << "Invalid channel " << chan; |
| 375 | return; |
| 376 | } |
| 377 | |
Thomas Tsou | 2d0c00b | 2013-11-14 15:28:23 -0500 | [diff] [blame] | 378 | if (wTime.TN() > 7) { |
| 379 | LOG(ALERT) << "Received burst with invalid slot " << wTime.TN(); |
| 380 | return; |
| 381 | } |
| 382 | |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 383 | /* Use the number of bits as the EDGE burst indicator */ |
| 384 | if (bits.size() == EDGE_BURST_NBITS) |
| 385 | burst = modulateEdgeBurst(bits, mSPSTx); |
| 386 | else |
| 387 | burst = modulateBurst(bits, 8 + (wTime.TN() % 4 == 0), mSPSTx); |
| 388 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 389 | scaleVector(*burst, txFullScale * pow(10, -RSSI / 10)); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 390 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 391 | radio_burst = new radioVector(wTime, burst); |
| 392 | |
| 393 | mTxPriorityQueues[chan].write(radio_burst); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 394 | } |
| 395 | |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 396 | void Transceiver::updateFillerTable(size_t chan, radioVector *burst) |
| 397 | { |
| 398 | int TN, modFN; |
| 399 | TransceiverState *state = &mStates[chan]; |
| 400 | |
| 401 | TN = burst->getTime().TN(); |
| 402 | modFN = burst->getTime().FN() % state->fillerModulus[TN]; |
| 403 | |
| 404 | delete state->fillerTable[modFN][TN]; |
| 405 | state->fillerTable[modFN][TN] = burst->getVector(); |
| 406 | burst->setVector(NULL); |
| 407 | } |
| 408 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 409 | void Transceiver::pushRadioVector(GSM::Time &nowTime) |
| 410 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 411 | int TN, modFN; |
| 412 | radioVector *burst; |
| 413 | TransceiverState *state; |
| 414 | std::vector<signalVector *> bursts(mChans); |
| 415 | std::vector<bool> zeros(mChans); |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 416 | std::vector<bool> filler(mChans, true); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 417 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 418 | for (size_t i = 0; i < mChans; i ++) { |
| 419 | state = &mStates[i]; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 420 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 421 | while ((burst = mTxPriorityQueues[i].getStaleBurst(nowTime))) { |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 422 | LOGCHAN(i, DMAIN, NOTICE) << "dumping STALE burst in TRX->SDR interface (" |
Pau Espin Pedrol | f37b0ad | 2018-04-25 18:01:27 +0200 | [diff] [blame] | 423 | << burst->getTime() <<" vs " << nowTime << "), retrans=" << state->mRetrans; |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 424 | if (state->mRetrans) |
| 425 | updateFillerTable(i, burst); |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 426 | delete burst; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 427 | } |
| 428 | |
| 429 | TN = nowTime.TN(); |
| 430 | modFN = nowTime.FN() % state->fillerModulus[TN]; |
| 431 | |
| 432 | bursts[i] = state->fillerTable[modFN][TN]; |
| 433 | zeros[i] = state->chanType[TN] == NONE; |
| 434 | |
| 435 | if ((burst = mTxPriorityQueues[i].getCurrentBurst(nowTime))) { |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 436 | bursts[i] = burst->getVector(); |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 437 | |
| 438 | if (state->mRetrans) { |
| 439 | updateFillerTable(i, burst); |
| 440 | } else { |
| 441 | burst->setVector(NULL); |
| 442 | filler[i] = false; |
| 443 | } |
| 444 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 445 | delete burst; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 446 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 447 | } |
| 448 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 449 | mRadioInterface->driveTransmitRadio(bursts, zeros); |
| 450 | |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 451 | for (size_t i = 0; i < mChans; i++) { |
| 452 | if (!filler[i]) |
| 453 | delete bursts[i]; |
| 454 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 455 | } |
| 456 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 457 | void Transceiver::setModulus(size_t timeslot, size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 458 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 459 | TransceiverState *state = &mStates[chan]; |
| 460 | |
| 461 | switch (state->chanType[timeslot]) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 462 | case NONE: |
| 463 | case I: |
| 464 | case II: |
| 465 | case III: |
| 466 | case FILL: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 467 | state->fillerModulus[timeslot] = 26; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 468 | break; |
| 469 | case IV: |
| 470 | case VI: |
| 471 | case V: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 472 | state->fillerModulus[timeslot] = 51; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 473 | break; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 474 | //case V: |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 475 | case VII: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 476 | state->fillerModulus[timeslot] = 102; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 477 | break; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 478 | case XIII: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 479 | state->fillerModulus[timeslot] = 52; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 480 | break; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 481 | default: |
| 482 | break; |
| 483 | } |
| 484 | } |
| 485 | |
| 486 | |
Alexander Chemeris | f9e78be | 2017-03-17 15:00:34 -0700 | [diff] [blame] | 487 | CorrType Transceiver::expectedCorrType(GSM::Time currTime, |
| 488 | size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 489 | { |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 490 | 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 }; |
| 491 | 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, |
| 492 | 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 }; |
| 493 | 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, |
| 494 | 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] | 495 | TransceiverState *state = &mStates[chan]; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 496 | unsigned burstTN = currTime.TN(); |
| 497 | unsigned burstFN = currTime.FN(); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 498 | int subch; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 499 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 500 | switch (state->chanType[burstTN]) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 501 | case NONE: |
| 502 | return OFF; |
| 503 | break; |
| 504 | case FILL: |
| 505 | return IDLE; |
| 506 | break; |
| 507 | case I: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 508 | // TODO: Are we expecting RACH on an IDLE frame? |
| 509 | /* if (burstFN % 26 == 25) |
| 510 | return IDLE;*/ |
| 511 | if (mHandover[burstTN][0]) |
| 512 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 513 | return TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 514 | break; |
| 515 | case II: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 516 | subch = tchh_subslot[burstFN % 26]; |
| 517 | if (subch == 1) |
| 518 | return IDLE; |
| 519 | if (mHandover[burstTN][0]) |
| 520 | return RACH; |
ttsou | 2064297 | 2013-03-27 22:00:25 +0000 | [diff] [blame] | 521 | return TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 522 | break; |
| 523 | case III: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 524 | subch = tchh_subslot[burstFN % 26]; |
| 525 | if (mHandover[burstTN][subch]) |
| 526 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 527 | return TSC; |
| 528 | break; |
| 529 | case IV: |
| 530 | case VI: |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 531 | return mExtRACH ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 532 | break; |
| 533 | case V: { |
| 534 | int mod51 = burstFN % 51; |
| 535 | if ((mod51 <= 36) && (mod51 >= 14)) |
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 == 4) || (mod51 == 5)) |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 538 | return mExtRACH ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 539 | else if ((mod51 == 45) || (mod51 == 46)) |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 540 | return mExtRACH ? EXT_RACH : RACH; |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 541 | else if (mHandover[burstTN][sdcch4_subslot[burstFN % 102]]) |
| 542 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 543 | else |
| 544 | return TSC; |
| 545 | break; |
| 546 | } |
| 547 | case VII: |
| 548 | if ((burstFN % 51 <= 14) && (burstFN % 51 >= 12)) |
| 549 | return IDLE; |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 550 | else if (mHandover[burstTN][sdcch8_subslot[burstFN % 102]]) |
| 551 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 552 | else |
| 553 | return TSC; |
| 554 | break; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 555 | case XIII: { |
| 556 | int mod52 = burstFN % 52; |
| 557 | if ((mod52 == 12) || (mod52 == 38)) |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 558 | return mExtRACH ? EXT_RACH : RACH; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 559 | else if ((mod52 == 25) || (mod52 == 51)) |
| 560 | return IDLE; |
Pau Espin Pedrol | bfc1d0b | 2019-08-26 16:34:45 +0200 | [diff] [blame] | 561 | else /* Enable 8-PSK burst detection if EDGE is enabled */ |
| 562 | return mEdge ? EDGE : TSC; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 563 | break; |
| 564 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 565 | case LOOPBACK: |
| 566 | if ((burstFN % 51 <= 50) && (burstFN % 51 >=48)) |
| 567 | return IDLE; |
| 568 | else |
| 569 | return TSC; |
| 570 | break; |
| 571 | default: |
| 572 | return OFF; |
| 573 | break; |
| 574 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 575 | } |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 576 | |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 577 | void writeToFile(radioVector *radio_burst, size_t chan) |
| 578 | { |
| 579 | GSM::Time time = radio_burst->getTime(); |
| 580 | std::ostringstream fname; |
| 581 | fname << chan << "_" << time.FN() << "_" << time.TN() << ".fc"; |
| 582 | std::ofstream outfile (fname.str().c_str(), std::ofstream::binary); |
| 583 | outfile.write((char*)radio_burst->getVector()->begin(), radio_burst->getVector()->size() * 2 * sizeof(float)); |
| 584 | outfile.close(); |
| 585 | } |
| 586 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 587 | /* |
| 588 | * Pull bursts from the FIFO and handle according to the slot |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 589 | * and burst correlation type. Equalzation is currently disabled. |
Pau Espin Pedrol | 4e6ec45 | 2019-08-26 15:43:56 +0200 | [diff] [blame] | 590 | * returns true on success (bi filled), false on error (bi content undefined). |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 591 | */ |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 592 | bool Transceiver::pullRadioVector(size_t chan, struct trx_ul_burst_ind *bi) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 593 | { |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 594 | int rc; |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 595 | struct estim_burst_params ebp; |
| 596 | float max = -1.0, avg = 0.0; |
Pau Espin Pedrol | 9bb24a1 | 2019-07-03 15:43:03 +0200 | [diff] [blame] | 597 | unsigned max_toa; |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 598 | int max_i = -1; |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 599 | signalVector *burst; |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 600 | GSM::Time burstTime; |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 601 | SoftVector *rxBurst; |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 602 | TransceiverState *state = &mStates[chan]; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 603 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 604 | /* Blocking FIFO read */ |
| 605 | radioVector *radio_burst = mReceiveFIFO[chan]->read(); |
| 606 | if (!radio_burst) |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 607 | return false; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 608 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 609 | /* Set time and determine correlation type */ |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 610 | burstTime = radio_burst->getTime(); |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 611 | CorrType type = expectedCorrType(burstTime, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 612 | |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 613 | /* Debug: dump bursts to disk */ |
| 614 | /* bits 0-7 - chan 0 timeslots |
| 615 | * bits 8-15 - chan 1 timeslots */ |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 616 | if (mWriteBurstToDiskMask & ((1<<bi->tn) << (8*chan))) |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 617 | writeToFile(radio_burst, chan); |
| 618 | |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 619 | /* No processing if the timeslot is off. |
| 620 | * Not even power level or noise calculation. */ |
| 621 | if (type == OFF) { |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 622 | delete radio_burst; |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 623 | return false; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 624 | } |
kurtis.heimerl | 3ed6fb7 | 2011-11-26 03:17:52 +0000 | [diff] [blame] | 625 | |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 626 | /* Initialize struct bi */ |
| 627 | bi->nbits = 0; |
| 628 | bi->fn = burstTime.FN(); |
| 629 | bi->tn = burstTime.TN(); |
| 630 | bi->rssi = 0.0; |
| 631 | bi->toa = 0.0; |
| 632 | bi->noise = 0.0; |
| 633 | bi->idle = false; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 634 | bi->modulation = MODULATION_GMSK; |
| 635 | bi->tss = 0; /* TODO: we only support tss 0 right now */ |
| 636 | bi->tsc = 0; |
| 637 | bi->ci = 0.0; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 638 | |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 639 | /* Select the diversity channel with highest energy */ |
| 640 | for (size_t i = 0; i < radio_burst->chans(); i++) { |
Alexander Chemeris | 1dd05cf | 2017-03-15 23:23:36 +0300 | [diff] [blame] | 641 | float pow = energyDetect(*radio_burst->getVector(i), 20 * mSPSRx); |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 642 | if (pow > max) { |
| 643 | max = pow; |
| 644 | max_i = i; |
| 645 | } |
| 646 | avg += pow; |
| 647 | } |
| 648 | |
| 649 | if (max_i < 0) { |
| 650 | LOG(ALERT) << "Received empty burst"; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 651 | goto ret_idle; |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 652 | } |
| 653 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 654 | /* Average noise on diversity paths and update global levels */ |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 655 | burst = radio_burst->getVector(max_i); |
Thomas Tsou | ef25dba | 2013-11-14 15:31:24 -0500 | [diff] [blame] | 656 | avg = sqrt(avg / radio_burst->chans()); |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 657 | |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 658 | if (type == IDLE) { |
| 659 | /* Update noise levels */ |
| 660 | state->mNoises.insert(avg); |
| 661 | state->mNoiseLev = state->mNoises.avg(); |
Pau Espin Pedrol | be9cd66 | 2019-07-03 15:00:56 +0200 | [diff] [blame] | 662 | } |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 663 | |
Pau Espin Pedrol | be9cd66 | 2019-07-03 15:00:56 +0200 | [diff] [blame] | 664 | bi->rssi = 20.0 * log10(rxFullScale / avg) + rssiOffset; |
| 665 | bi->noise = 20.0 * log10(rxFullScale / state->mNoiseLev) + rssiOffset; |
| 666 | |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 667 | if (type == IDLE) |
| 668 | goto ret_idle; |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 669 | |
Pau Espin Pedrol | 9bb24a1 | 2019-07-03 15:43:03 +0200 | [diff] [blame] | 670 | max_toa = (type == RACH || type == EXT_RACH) ? |
| 671 | mMaxExpectedDelayAB : mMaxExpectedDelayNB; |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 672 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 673 | /* Detect normal or RACH bursts */ |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 674 | rc = detectAnyBurst(*burst, mTSC, BURST_THRESH, mSPSRx, type, max_toa, &ebp); |
Pau Espin Pedrol | d6dbb1b | 2019-07-03 15:23:56 +0200 | [diff] [blame] | 675 | if (rc <= 0) { |
| 676 | if (rc == -SIGERR_CLIP) |
Alexander Chemeris | 954b118 | 2015-06-04 15:39:41 -0400 | [diff] [blame] | 677 | LOG(WARNING) << "Clipping detected on received RACH or Normal Burst"; |
Pau Espin Pedrol | d6dbb1b | 2019-07-03 15:23:56 +0200 | [diff] [blame] | 678 | else if (rc != SIGERR_NONE) |
Alexander Chemeris | 954b118 | 2015-06-04 15:39:41 -0400 | [diff] [blame] | 679 | LOG(WARNING) << "Unhandled RACH or Normal Burst detection error"; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 680 | goto ret_idle; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 681 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 682 | |
Pau Espin Pedrol | d6dbb1b | 2019-07-03 15:23:56 +0200 | [diff] [blame] | 683 | type = (CorrType) rc; |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 684 | bi->toa = ebp.toa; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 685 | bi->tsc = ebp.tsc; |
| 686 | bi->ci = ebp.ci; |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 687 | rxBurst = demodAnyBurst(*burst, mSPSRx, ebp.amp, ebp.toa, type); |
Thomas Tsou | ef25dba | 2013-11-14 15:31:24 -0500 | [diff] [blame] | 688 | |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 689 | /* EDGE demodulator returns 444 (gSlotLen * 3) bits */ |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 690 | if (rxBurst->size() == EDGE_BURST_NBITS) { |
| 691 | bi->modulation = MODULATION_8PSK; |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 692 | bi->nbits = EDGE_BURST_NBITS; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 693 | } else { /* size() here is actually gSlotLen + 8, due to guard periods */ |
| 694 | bi->modulation = MODULATION_GMSK; |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 695 | bi->nbits = gSlotLen; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 696 | } |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 697 | |
Pau Espin Pedrol | 25ae190 | 2019-07-01 16:40:44 +0200 | [diff] [blame] | 698 | // Convert -1..+1 soft bits to 0..1 soft bits |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 699 | vectorSlicer(bi->rx_burst, rxBurst->begin(), bi->nbits); |
Pau Espin Pedrol | 25ae190 | 2019-07-01 16:40:44 +0200 | [diff] [blame] | 700 | |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 701 | delete rxBurst; |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 702 | delete radio_burst; |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 703 | return true; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 704 | |
| 705 | ret_idle: |
| 706 | bi->idle = true; |
| 707 | delete radio_burst; |
Pau Espin Pedrol | 4e6ec45 | 2019-08-26 15:43:56 +0200 | [diff] [blame] | 708 | return true; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 709 | } |
| 710 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 711 | void Transceiver::reset() |
| 712 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 713 | for (size_t i = 0; i < mTxPriorityQueues.size(); i++) |
| 714 | mTxPriorityQueues[i].clear(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 715 | } |
| 716 | |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 717 | |
Vadim Yanitskiy | bd0efb0 | 2018-03-09 02:45:07 +0700 | [diff] [blame] | 718 | #define MAX_PACKET_LENGTH 100 |
| 719 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 720 | /** |
| 721 | * Matches a buffer with a command. |
| 722 | * @param buf a buffer to look command in |
| 723 | * @param cmd a command to look in buffer |
| 724 | * @param params pointer to arguments, or NULL |
| 725 | * @return true if command matches, otherwise false |
| 726 | */ |
| 727 | static bool match_cmd(char *buf, |
| 728 | const char *cmd, char **params) |
| 729 | { |
| 730 | size_t cmd_len = strlen(cmd); |
| 731 | |
| 732 | /* Check a command itself */ |
| 733 | if (strncmp(buf, cmd, cmd_len)) |
| 734 | return false; |
| 735 | |
| 736 | /* A command has arguments */ |
| 737 | if (params != NULL) { |
| 738 | /* Make sure there is a space */ |
| 739 | if (buf[cmd_len] != ' ') |
| 740 | return false; |
| 741 | |
| 742 | /* Update external pointer */ |
| 743 | *params = buf + cmd_len + 1; |
| 744 | } |
| 745 | |
| 746 | return true; |
| 747 | } |
| 748 | |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 749 | bool Transceiver::driveControl(size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 750 | { |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 751 | char buffer[MAX_PACKET_LENGTH + 1]; |
| 752 | char response[MAX_PACKET_LENGTH + 1]; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 753 | char *command, *params; |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 754 | int msgLen; |
Thomas Tsou | d647ec5 | 2013-10-29 15:17:34 -0400 | [diff] [blame] | 755 | |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 756 | /* Attempt to read from control socket */ |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 757 | msgLen = read(mCtrlSockets[chan], buffer, MAX_PACKET_LENGTH); |
| 758 | if (msgLen <= 0) { |
| 759 | LOGCHAN(chan, DTRXCTRL, WARNING) << "mCtrlSockets read(" << mCtrlSockets[chan] << ") failed: " << msgLen; |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 760 | return false; |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 761 | } |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 762 | |
| 763 | /* Zero-terminate received string */ |
| 764 | buffer[msgLen] = '\0'; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 765 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 766 | /* Verify a command signature */ |
| 767 | if (strncmp(buffer, "CMD ", 4)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 768 | LOGC(DTRXCTRL, WARNING) << "bogus message on control interface"; |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 769 | return false; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 770 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 771 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 772 | /* Set command pointer */ |
| 773 | command = buffer + 4; |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 774 | LOGCHAN(chan, DTRXCTRL, INFO) << "command is '" << command << "'"; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 775 | |
| 776 | if (match_cmd(command, "POWEROFF", NULL)) { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 777 | stop(); |
| 778 | sprintf(response,"RSP POWEROFF 0"); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 779 | } else if (match_cmd(command, "POWERON", NULL)) { |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 780 | if (!start()) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 781 | sprintf(response,"RSP POWERON 1"); |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 782 | } else { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 783 | sprintf(response,"RSP POWERON 0"); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 784 | for (int i = 0; i < 8; i++) { |
| 785 | for (int j = 0; j < 8; j++) |
| 786 | mHandover[i][j] = false; |
| 787 | } |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 788 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 789 | } else if (match_cmd(command, "HANDOVER", ¶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] = true; |
| 796 | sprintf(response, "RSP HANDOVER 0 %u %u", ts, ss); |
| 797 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 798 | } else if (match_cmd(command, "NOHANDOVER", ¶ms)) { |
Vadim Yanitskiy | c0c6d70 | 2018-03-09 05:08:23 +0700 | [diff] [blame] | 799 | unsigned ts = 0, ss = 0; |
| 800 | sscanf(params, "%u %u", &ts, &ss); |
| 801 | if (ts > 7 || ss > 7) { |
| 802 | sprintf(response, "RSP NOHANDOVER 1 %u %u", ts, ss); |
| 803 | } else { |
| 804 | mHandover[ts][ss] = false; |
| 805 | sprintf(response, "RSP NOHANDOVER 0 %u %u", ts, ss); |
| 806 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 807 | } else if (match_cmd(command, "SETMAXDLY", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 808 | //set expected maximum time-of-arrival |
| 809 | int maxDelay; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 810 | sscanf(params, "%d", &maxDelay); |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 811 | mMaxExpectedDelayAB = maxDelay; // 1 GSM symbol is approx. 1 km |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 812 | sprintf(response,"RSP SETMAXDLY 0 %d",maxDelay); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 813 | } else if (match_cmd(command, "SETMAXDLYNB", ¶ms)) { |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 814 | //set expected maximum time-of-arrival |
| 815 | int maxDelay; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 816 | sscanf(params, "%d", &maxDelay); |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 817 | mMaxExpectedDelayNB = maxDelay; // 1 GSM symbol is approx. 1 km |
| 818 | sprintf(response,"RSP SETMAXDLYNB 0 %d",maxDelay); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 819 | } else if (match_cmd(command, "SETRXGAIN", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 820 | //set expected maximum time-of-arrival |
| 821 | int newGain; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 822 | sscanf(params, "%d", &newGain); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 823 | newGain = mRadioInterface->setRxGain(newGain, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 824 | sprintf(response,"RSP SETRXGAIN 0 %d",newGain); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 825 | } else if (match_cmd(command, "NOISELEV", NULL)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 826 | if (mOn) { |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 827 | float lev = mStates[chan].mNoiseLev; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 828 | sprintf(response,"RSP NOISELEV 0 %d", |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 829 | (int) round(20.0 * log10(rxFullScale / lev))); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 830 | } |
| 831 | else { |
| 832 | sprintf(response,"RSP NOISELEV 1 0"); |
| 833 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 834 | } else if (match_cmd(command, "SETPOWER", ¶ms)) { |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 835 | int power; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 836 | sscanf(params, "%d", &power); |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 837 | power = mRadioInterface->setPowerAttenuation(power, chan); |
| 838 | mStates[chan].mPower = power; |
| 839 | sprintf(response, "RSP SETPOWER 0 %d", power); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 840 | } else if (match_cmd(command, "ADJPOWER", ¶ms)) { |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 841 | int power, step; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 842 | sscanf(params, "%d", &step); |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 843 | power = mStates[chan].mPower + step; |
| 844 | power = mRadioInterface->setPowerAttenuation(power, chan); |
| 845 | mStates[chan].mPower = power; |
| 846 | sprintf(response, "RSP ADJPOWER 0 %d", power); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 847 | } else if (match_cmd(command, "RXTUNE", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 848 | // tune receiver |
| 849 | int freqKhz; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 850 | sscanf(params, "%d", &freqKhz); |
Thomas Tsou | 477b77c | 2013-11-15 16:13:59 -0500 | [diff] [blame] | 851 | mRxFreq = freqKhz * 1e3; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 852 | if (!mRadioInterface->tuneRx(mRxFreq, chan)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 853 | LOGC(DTRXCTRL, ALERT) << "RX failed to tune"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 854 | sprintf(response,"RSP RXTUNE 1 %d",freqKhz); |
| 855 | } |
| 856 | else |
| 857 | sprintf(response,"RSP RXTUNE 0 %d",freqKhz); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 858 | } else if (match_cmd(command, "TXTUNE", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 859 | // tune txmtr |
| 860 | int freqKhz; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 861 | sscanf(params, "%d", &freqKhz); |
Thomas Tsou | 477b77c | 2013-11-15 16:13:59 -0500 | [diff] [blame] | 862 | mTxFreq = freqKhz * 1e3; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 863 | if (!mRadioInterface->tuneTx(mTxFreq, chan)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 864 | LOGC(DTRXCTRL, ALERT) << "TX failed to tune"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 865 | sprintf(response,"RSP TXTUNE 1 %d",freqKhz); |
| 866 | } |
| 867 | else |
| 868 | sprintf(response,"RSP TXTUNE 0 %d",freqKhz); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 869 | } else if (match_cmd(command, "SETTSC", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 870 | // set TSC |
Thomas Tsou | 3f32ab5 | 2013-11-15 16:32:54 -0500 | [diff] [blame] | 871 | unsigned TSC; |
Vadim Yanitskiy | 8c6c5d2 | 2018-03-09 05:01:21 +0700 | [diff] [blame] | 872 | sscanf(params, "%u", &TSC); |
Tom Tsou | 6031734 | 2017-03-30 19:36:41 -0700 | [diff] [blame] | 873 | if (TSC > 7) { |
Thomas Tsou | d3fccea | 2013-11-15 14:22:53 -0500 | [diff] [blame] | 874 | sprintf(response, "RSP SETTSC 1 %d", TSC); |
Tom Tsou | 6031734 | 2017-03-30 19:36:41 -0700 | [diff] [blame] | 875 | } else { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 876 | LOGC(DTRXCTRL, NOTICE) << "Changing TSC from " << mTSC << " to " << TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 877 | mTSC = TSC; |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 878 | sprintf(response,"RSP SETTSC 0 %d", TSC); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 879 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 880 | } else if (match_cmd(command, "SETSLOT", ¶ms)) { |
Alexander Chemeris | 1fe5282 | 2015-05-20 12:02:29 -0700 | [diff] [blame] | 881 | // set slot type |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 882 | int corrCode; |
| 883 | int timeslot; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 884 | sscanf(params, "%d %d", ×lot, &corrCode); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 885 | if ((timeslot < 0) || (timeslot > 7)) { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 886 | LOGC(DTRXCTRL, WARNING) << "bogus message on control interface"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 887 | sprintf(response,"RSP SETSLOT 1 %d %d",timeslot,corrCode); |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 888 | return true; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 889 | } |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 890 | mStates[chan].chanType[timeslot] = (ChannelCombination) corrCode; |
| 891 | setModulus(timeslot, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 892 | sprintf(response,"RSP SETSLOT 0 %d %d",timeslot,corrCode); |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 893 | } else if (match_cmd(command, "SETFORMAT", ¶ms)) { |
| 894 | // set TRXD protocol version |
| 895 | unsigned version_recv; |
| 896 | sscanf(params, "%u", &version_recv); |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 897 | LOGCHAN(chan, DTRXCTRL, INFO) << "BTS requests TRXD version switch: " << version_recv; |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 898 | if (version_recv > TRX_DATA_FORMAT_VER) { |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 899 | LOGCHAN(chan, DTRXCTRL, INFO) << "rejecting TRXD version " << version_recv |
| 900 | << "in favor of " << TRX_DATA_FORMAT_VER; |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 901 | sprintf(response, "RSP SETFORMAT %u %u", TRX_DATA_FORMAT_VER, version_recv); |
| 902 | } else { |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 903 | LOGCHAN(chan, DTRXCTRL, NOTICE) << "switching to TRXD version " << version_recv; |
| 904 | mVersionTRXD[chan] = version_recv; |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 905 | sprintf(response, "RSP SETFORMAT %u %u", version_recv, version_recv); |
| 906 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 907 | } else if (match_cmd(command, "_SETBURSTTODISKMASK", ¶ms)) { |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 908 | // debug command! may change or disapear without notice |
| 909 | // set a mask which bursts to dump to disk |
| 910 | int mask; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 911 | sscanf(params, "%d", &mask); |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 912 | mWriteBurstToDiskMask = mask; |
| 913 | sprintf(response,"RSP _SETBURSTTODISKMASK 0 %d",mask); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 914 | } else { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 915 | LOGC(DTRXCTRL, WARNING) << "bogus command " << command << " on control interface."; |
Alexander Chemeris | 4438a9f | 2013-04-08 00:14:08 +0200 | [diff] [blame] | 916 | sprintf(response,"RSP ERR 1"); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 917 | } |
| 918 | |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 919 | LOGCHAN(chan, DTRXCTRL, INFO) << "response is '" << response << "'"; |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 920 | msgLen = write(mCtrlSockets[chan], response, strlen(response) + 1); |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 921 | if (msgLen <= 0) { |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 922 | LOGCHAN(chan, DTRXCTRL, WARNING) << "mCtrlSockets write(" << mCtrlSockets[chan] << ") failed: " << msgLen; |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 923 | return false; |
| 924 | } |
| 925 | return true; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 926 | } |
| 927 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 928 | bool Transceiver::driveTxPriorityQueue(size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 929 | { |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 930 | int msgLen; |
Tom Tsou | e887108 | 2016-07-01 02:46:04 -0700 | [diff] [blame] | 931 | int burstLen; |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 932 | struct trxd_hdr_v01_dl *dl; |
| 933 | char buffer[sizeof(*dl) + EDGE_BURST_NBITS]; |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 934 | uint32_t fn; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 935 | |
| 936 | // check data socket |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 937 | msgLen = read(mDataSockets[chan], buffer, sizeof(buffer)); |
| 938 | if (msgLen <= 0) { |
| 939 | LOGCHAN(chan, DTRXCTRL, WARNING) << "mDataSockets read(" << mCtrlSockets[chan] << ") failed: " << msgLen; |
| 940 | return false; |
| 941 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 942 | |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 943 | switch (msgLen) { |
| 944 | case sizeof(*dl) + gSlotLen: /* GSM burst */ |
| 945 | burstLen = gSlotLen; |
| 946 | break; |
| 947 | case sizeof(*dl) + EDGE_BURST_NBITS: /* EDGE burst */ |
| 948 | if (mSPSTx != 4) { |
| 949 | LOG(ERR) << "EDGE burst received but SPS is set to " << mSPSTx; |
| 950 | return false; |
| 951 | } |
| 952 | burstLen = EDGE_BURST_NBITS; |
| 953 | break; |
| 954 | default: |
| 955 | LOG(ERR) << "badly formatted packet on GSM->TRX interface (len="<< msgLen << ")"; |
Tom Tsou | e887108 | 2016-07-01 02:46:04 -0700 | [diff] [blame] | 956 | return false; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 957 | } |
| 958 | |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 959 | dl = (struct trxd_hdr_v01_dl *) buffer; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 960 | |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 961 | /* Convert TDMA FN to the host endianness */ |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 962 | fn = osmo_load32be(&dl->common.fn); |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 963 | |
Vadim Yanitskiy | dd571c6 | 2019-07-15 23:56:56 +0700 | [diff] [blame] | 964 | /* Make sure we support the received header format */ |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 965 | switch (dl->common.version) { |
Vadim Yanitskiy | dd571c6 | 2019-07-15 23:56:56 +0700 | [diff] [blame] | 966 | case 0: |
| 967 | /* Version 1 has the same format */ |
| 968 | case 1: |
| 969 | break; |
Vadim Yanitskiy | dd571c6 | 2019-07-15 23:56:56 +0700 | [diff] [blame] | 970 | default: |
Pau Espin Pedrol | 1fba104 | 2019-09-06 14:22:31 +0200 | [diff] [blame^] | 971 | LOG(ERR) << "Rx TRXD message with unknown header version " << unsigned(dl->common.version); |
Vadim Yanitskiy | dd571c6 | 2019-07-15 23:56:56 +0700 | [diff] [blame] | 972 | return false; |
| 973 | } |
| 974 | |
Pau Espin Pedrol | 1fba104 | 2019-09-06 14:22:31 +0200 | [diff] [blame^] | 975 | LOG(DEBUG) << "Rx TRXD message (hdr_ver=" << unsigned(dl->common.version) << "): " |
| 976 | << "fn=" << fn << ", tn=" << unsigned(dl->common.tn) << ", " |
Vadim Yanitskiy | 56c5f29 | 2019-07-16 00:02:56 +0700 | [diff] [blame] | 977 | << "burst_len=" << burstLen; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 978 | |
Tom Tsou | 7c741ec | 2016-07-19 11:20:59 -0700 | [diff] [blame] | 979 | BitVector newBurst(burstLen); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 980 | BitVector::iterator itr = newBurst.begin(); |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 981 | uint8_t *bufferItr = dl->soft_bits; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 982 | while (itr < newBurst.end()) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 983 | *itr++ = *bufferItr++; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 984 | |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 985 | GSM::Time currTime = GSM::Time(fn, dl->common.tn); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 986 | |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 987 | addRadioVector(chan, newBurst, dl->tx_att, currTime); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 988 | |
| 989 | return true; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 990 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 991 | |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 992 | bool Transceiver::driveReceiveRadio() |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 993 | { |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 994 | int rc = mRadioInterface->driveReceiveRadio(); |
| 995 | if (rc == 0) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 996 | usleep(100000); |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 997 | return true; |
Alexander Chemeris | 6a2bf0d | 2015-05-24 19:28:09 -0400 | [diff] [blame] | 998 | } |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 999 | if (rc < 0) |
| 1000 | return false; |
| 1001 | |
| 1002 | if (mForceClockInterface || mTransmitDeadlineClock > mLastClockUpdateTime + GSM::Time(216,0)) { |
| 1003 | mForceClockInterface = false; |
| 1004 | return writeClockInterface(); |
| 1005 | } |
| 1006 | return true; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1007 | } |
| 1008 | |
Pau Espin Pedrol | 607a414 | 2019-07-01 13:56:17 +0200 | [diff] [blame] | 1009 | 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] | 1010 | { |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 1011 | std::ostringstream os; |
| 1012 | for (size_t i=0; i < bi->nbits; i++) { |
| 1013 | if (bi->rx_burst[i] > 0.5) os << "1"; |
| 1014 | else if (bi->rx_burst[i] > 0.25) os << "|"; |
| 1015 | else if (bi->rx_burst[i] > 0.0) os << "'"; |
| 1016 | else os << "-"; |
| 1017 | } |
| 1018 | |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 1019 | LOG(DEBUG) << std::fixed << std::right |
Alexander Chemeris | 58e9591 | 2016-03-25 18:20:28 +0300 | [diff] [blame] | 1020 | << " chan: " << chan |
Pau Espin Pedrol | 1fba104 | 2019-09-06 14:22:31 +0200 | [diff] [blame^] | 1021 | << " time: " << unsigned(bi->tn) << ":" << bi->fn |
Pau Espin Pedrol | 607a414 | 2019-07-01 13:56:17 +0200 | [diff] [blame] | 1022 | << " RSSI: " << std::setw(5) << std::setprecision(1) << (bi->rssi - rssiOffset) |
| 1023 | << "dBFS/" << std::setw(6) << -bi->rssi << "dBm" |
| 1024 | << " noise: " << std::setw(5) << std::setprecision(1) << (bi->noise - rssiOffset) |
| 1025 | << "dBFS/" << std::setw(6) << -bi->noise << "dBm" |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1026 | << " TOA: " << std::setw(5) << std::setprecision(2) << bi->toa |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 1027 | << " C/I: " << std::setw(5) << std::setprecision(2) << bi->ci << "dB" |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 1028 | << " bits: " << os; |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 1029 | } |
| 1030 | |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1031 | bool Transceiver::driveReceiveFIFO(size_t chan) |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1032 | { |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1033 | struct trx_ul_burst_ind bi; |
| 1034 | |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1035 | if (!pullRadioVector(chan, &bi)) |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1036 | return false; |
| 1037 | |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1038 | if (!bi.idle) |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1039 | logRxBurst(chan, &bi); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1040 | |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 1041 | switch (mVersionTRXD[chan]) { |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1042 | case 0: |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1043 | return trxd_send_burst_ind_v0(chan, mDataSockets[chan], &bi); |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 1044 | case 1: |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1045 | return trxd_send_burst_ind_v1(chan, mDataSockets[chan], &bi); |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1046 | default: |
| 1047 | OSMO_ASSERT(false); |
| 1048 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1049 | } |
| 1050 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1051 | void Transceiver::driveTxFIFO() |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1052 | { |
| 1053 | |
| 1054 | /** |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1055 | Features a carefully controlled latency mechanism, to |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1056 | assure that transmit packets arrive at the radio/USRP |
| 1057 | before they need to be transmitted. |
| 1058 | |
| 1059 | Deadline clock indicates the burst that needs to be |
| 1060 | pushed into the FIFO right NOW. If transmit queue does |
| 1061 | not have a burst, stick in filler data. |
| 1062 | */ |
| 1063 | |
| 1064 | |
| 1065 | RadioClock *radioClock = (mRadioInterface->getClock()); |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1066 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1067 | if (mOn) { |
| 1068 | //radioClock->wait(); // wait until clock updates |
| 1069 | LOG(DEBUG) << "radio clock " << radioClock->get(); |
| 1070 | while (radioClock->get() + mTransmitLatency > mTransmitDeadlineClock) { |
| 1071 | // if underrun, then we're not providing bursts to radio/USRP fast |
| 1072 | // enough. Need to increase latency by one GSM frame. |
Thomas Tsou | 02d88d1 | 2013-04-05 15:36:30 -0400 | [diff] [blame] | 1073 | if (mRadioInterface->getWindowType() == RadioDevice::TX_WINDOW_USRP1) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1074 | if (mRadioInterface->isUnderrun()) { |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 1075 | // only update latency at the defined frame interval |
| 1076 | if (radioClock->get() > mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL)) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1077 | mTransmitLatency = mTransmitLatency + GSM::Time(1,0); |
Pau Espin Pedrol | 74bcc56 | 2018-10-02 17:30:28 +0200 | [diff] [blame] | 1078 | LOG(INFO) << "new latency: " << mTransmitLatency << " (underrun " |
| 1079 | << radioClock->get() << " vs " << mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL) << ")"; |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1080 | mLatencyUpdateTime = radioClock->get(); |
| 1081 | } |
| 1082 | } |
| 1083 | else { |
| 1084 | // if underrun hasn't occurred in the last sec (216 frames) drop |
| 1085 | // transmit latency by a timeslot |
Pau Espin Pedrol | e564f0f | 2018-04-24 18:43:51 +0200 | [diff] [blame] | 1086 | if (mTransmitLatency > mRadioInterface->minLatency()) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1087 | if (radioClock->get() > mLatencyUpdateTime + GSM::Time(216,0)) { |
| 1088 | mTransmitLatency.decTN(); |
| 1089 | LOG(INFO) << "reduced latency: " << mTransmitLatency; |
| 1090 | mLatencyUpdateTime = radioClock->get(); |
| 1091 | } |
| 1092 | } |
| 1093 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1094 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1095 | // time to push burst to transmit FIFO |
| 1096 | pushRadioVector(mTransmitDeadlineClock); |
| 1097 | mTransmitDeadlineClock.incTN(); |
| 1098 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1099 | } |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1100 | |
| 1101 | radioClock->wait(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1102 | } |
| 1103 | |
| 1104 | |
| 1105 | |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1106 | bool Transceiver::writeClockInterface() |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1107 | { |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1108 | int msgLen; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1109 | char command[50]; |
| 1110 | // FIXME -- This should be adaptive. |
| 1111 | sprintf(command,"IND CLOCK %llu",(unsigned long long) (mTransmitDeadlineClock.FN()+2)); |
| 1112 | |
| 1113 | LOG(INFO) << "ClockInterface: sending " << command; |
| 1114 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1115 | msgLen = write(mClockSocket, command, strlen(command) + 1); |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1116 | if (msgLen <= 0) { |
| 1117 | LOG(ERROR) << "mClockSocket write(" << mClockSocket << ") failed: " << msgLen; |
| 1118 | return false; |
| 1119 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1120 | |
| 1121 | mLastClockUpdateTime = mTransmitDeadlineClock; |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1122 | return true; |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1123 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1124 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1125 | void *RxUpperLoopAdapter(TrxChanThParams *params) |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1126 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1127 | char thread_name[16]; |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1128 | Transceiver *trx = params->trx; |
| 1129 | size_t num = params->num; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1130 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1131 | free(params); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1132 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1133 | snprintf(thread_name, 16, "RxUpper%zu", num); |
| 1134 | set_selfthread_name(thread_name); |
| 1135 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1136 | while (1) { |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1137 | if (!trx->driveReceiveFIFO(num)) { |
| 1138 | LOGCHAN(num, DMAIN, FATAL) << "Something went wrong in thread " << thread_name << ", requesting stop"; |
| 1139 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
| 1140 | break; |
| 1141 | } |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1142 | pthread_testcancel(); |
| 1143 | } |
| 1144 | return NULL; |
| 1145 | } |
| 1146 | |
| 1147 | void *RxLowerLoopAdapter(Transceiver *transceiver) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1148 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1149 | set_selfthread_name("RxLower"); |
| 1150 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1151 | while (1) { |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1152 | if (!transceiver->driveReceiveRadio()) { |
| 1153 | LOG(FATAL) << "Something went wrong in thread RxLower, requesting stop"; |
| 1154 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
| 1155 | break; |
| 1156 | } |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1157 | pthread_testcancel(); |
| 1158 | } |
| 1159 | return NULL; |
| 1160 | } |
| 1161 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1162 | void *TxLowerLoopAdapter(Transceiver *transceiver) |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1163 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1164 | set_selfthread_name("TxLower"); |
| 1165 | |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1166 | while (1) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1167 | transceiver->driveTxFIFO(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1168 | pthread_testcancel(); |
| 1169 | } |
| 1170 | return NULL; |
| 1171 | } |
| 1172 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1173 | void *ControlServiceLoopAdapter(TrxChanThParams *params) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1174 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1175 | char thread_name[16]; |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1176 | Transceiver *trx = params->trx; |
| 1177 | size_t num = params->num; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1178 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1179 | free(params); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1180 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1181 | snprintf(thread_name, 16, "CtrlService%zu", num); |
| 1182 | set_selfthread_name(thread_name); |
| 1183 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1184 | while (1) { |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1185 | if (!trx->driveControl(num)) { |
| 1186 | LOGCHAN(num, DTRXCTRL, FATAL) << "Something went wrong in thread " << thread_name << ", requesting stop"; |
| 1187 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
| 1188 | break; |
| 1189 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1190 | pthread_testcancel(); |
| 1191 | } |
| 1192 | return NULL; |
| 1193 | } |
| 1194 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1195 | void *TxUpperLoopAdapter(TrxChanThParams *params) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1196 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1197 | char thread_name[16]; |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1198 | Transceiver *trx = params->trx; |
| 1199 | size_t num = params->num; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1200 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1201 | free(params); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1202 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1203 | snprintf(thread_name, 16, "TxUpper%zu", num); |
| 1204 | set_selfthread_name(thread_name); |
| 1205 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1206 | while (1) { |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1207 | if (!trx->driveTxPriorityQueue(num)) { |
| 1208 | LOGCHAN(num, DMAIN, FATAL) << "Something went wrong in thread " << thread_name << ", requesting stop"; |
| 1209 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
| 1210 | break; |
| 1211 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1212 | pthread_testcancel(); |
| 1213 | } |
| 1214 | return NULL; |
| 1215 | } |