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> |
Eric | cca5d93 | 2023-07-25 18:44:03 +0200 | [diff] [blame] | 32 | #include <grgsm_vitac/grgsm_vitac.h> |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 33 | |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 34 | extern "C" { |
| 35 | #include "osmo_signal.h" |
Pau Espin Pedrol | 778b30a | 2019-06-28 13:27:24 +0200 | [diff] [blame] | 36 | #include "proto_trxd.h" |
| 37 | |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 38 | #include <osmocom/core/utils.h> |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 39 | #include <osmocom/core/socket.h> |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 40 | #include <osmocom/core/bits.h> |
Pau Espin Pedrol | 553a250 | 2020-07-29 18:05:25 +0200 | [diff] [blame] | 41 | #include <osmocom/vty/cpu_sched_vty.h> |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 42 | } |
| 43 | |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 44 | #ifdef HAVE_CONFIG_H |
| 45 | #include "config.h" |
| 46 | #endif |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 47 | |
Alexander Chemeris | d734e2d | 2013-06-16 14:30:58 +0400 | [diff] [blame] | 48 | using namespace GSM; |
| 49 | |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 50 | Transceiver *transceiver; |
| 51 | |
kurtis.heimerl | ec842de | 2012-11-23 08:37:32 +0000 | [diff] [blame] | 52 | #define USB_LATENCY_INTRVL 10,0 |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 53 | |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 54 | /* Number of running values use in noise average */ |
| 55 | #define NOISE_CNT 20 |
ttsou | e8dde02 | 2012-12-06 15:43:55 +0000 | [diff] [blame] | 56 | |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 57 | |
| 58 | static void dispatch_trx_rate_ctr_change(TransceiverState *state, unsigned int chan) { |
| 59 | thread_enable_cancel(false); |
| 60 | state->ctrs.chan = chan; |
| 61 | osmo_signal_dispatch(SS_DEVICE, S_TRX_COUNTER_CHANGE, &state->ctrs); |
| 62 | thread_enable_cancel(true); |
| 63 | } |
| 64 | |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 65 | TransceiverState::TransceiverState() |
Pau Espin Pedrol | 7d8676a | 2020-08-26 14:30:46 +0200 | [diff] [blame] | 66 | : mFiller(FILLER_ZERO), mRetrans(false), mNoiseLev(0.0), mNoises(NOISE_CNT), |
Eric | 1f37e4d | 2020-09-04 20:36:34 +0200 | [diff] [blame] | 67 | mPower(0.0), mMuted(false), first_dl_fn_rcv() |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 68 | { |
| 69 | for (int i = 0; i < 8; i++) { |
| 70 | chanType[i] = Transceiver::NONE; |
| 71 | fillerModulus[i] = 26; |
| 72 | chanResponse[i] = NULL; |
| 73 | DFEForward[i] = NULL; |
| 74 | DFEFeedback[i] = NULL; |
| 75 | |
| 76 | for (int n = 0; n < 102; n++) |
| 77 | fillerTable[n][i] = NULL; |
| 78 | } |
Pau Espin Pedrol | a71c5d0 | 2020-07-01 11:50:01 +0200 | [diff] [blame] | 79 | memset(&ctrs, 0, sizeof(struct trx_counters)); |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 80 | } |
| 81 | |
| 82 | TransceiverState::~TransceiverState() |
| 83 | { |
| 84 | for (int i = 0; i < 8; i++) { |
| 85 | delete chanResponse[i]; |
| 86 | delete DFEForward[i]; |
| 87 | delete DFEFeedback[i]; |
| 88 | |
| 89 | for (int n = 0; n < 102; n++) |
| 90 | delete fillerTable[n][i]; |
| 91 | } |
| 92 | } |
| 93 | |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 94 | 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] | 95 | { |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 96 | signalVector *burst; |
| 97 | |
| 98 | if ((sps != 1) && (sps != 4)) |
| 99 | return false; |
| 100 | |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 101 | mFiller = filler; |
| 102 | |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 103 | for (size_t n = 0; n < 8; n++) { |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 104 | for (size_t i = 0; i < 102; i++) { |
| 105 | switch (filler) { |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 106 | case FILLER_DUMMY: |
Tom Tsou | 8ee2f38 | 2016-03-06 20:57:34 -0800 | [diff] [blame] | 107 | burst = generateDummyBurst(sps, n); |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 108 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 109 | case FILLER_NORM_RAND: |
Tom Tsou | 8ee2f38 | 2016-03-06 20:57:34 -0800 | [diff] [blame] | 110 | burst = genRandNormalBurst(rtsc, sps, n); |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 111 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 112 | case FILLER_EDGE_RAND: |
Tom Tsou | af717b2 | 2016-03-06 22:19:15 -0800 | [diff] [blame] | 113 | burst = generateEdgeBurst(rtsc); |
| 114 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 115 | case FILLER_ACCESS_RAND: |
Alexander Chemeris | 37c52c7 | 2016-03-25 18:28:34 +0300 | [diff] [blame] | 116 | burst = genRandAccessBurst(rach_delay, sps, n); |
Alexander Chemeris | 5efe050 | 2016-03-23 17:06:32 +0300 | [diff] [blame] | 117 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 118 | case FILLER_ZERO: |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 119 | default: |
Tom Tsou | 8ee2f38 | 2016-03-06 20:57:34 -0800 | [diff] [blame] | 120 | burst = generateEmptyBurst(sps, n); |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 121 | } |
| 122 | |
| 123 | scaleVector(*burst, scale); |
| 124 | fillerTable[i][n] = burst; |
| 125 | } |
| 126 | |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 127 | if ((filler == FILLER_NORM_RAND) || |
| 128 | (filler == FILLER_EDGE_RAND)) { |
Alexander Chemeris | f9e78be | 2017-03-17 15:00:34 -0700 | [diff] [blame] | 129 | chanType[n] = TSC; |
Tom Tsou | af717b2 | 2016-03-06 22:19:15 -0800 | [diff] [blame] | 130 | } |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 131 | } |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 132 | |
| 133 | return false; |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 134 | } |
| 135 | |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 136 | Transceiver::Transceiver(const struct trx_cfg *cfg, |
Alexander Chemeris | e8905a0 | 2015-06-03 23:47:56 -0400 | [diff] [blame] | 137 | GSM::Time wTransmitLatency, |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 138 | RadioInterface *wRadioInterface) |
Eric | 5561f11 | 2022-07-19 21:18:21 +0200 | [diff] [blame] | 139 | : mChans(cfg->num_chans), cfg(cfg), |
| 140 | mCtrlSockets(mChans), mClockSocket(-1), |
| 141 | mTxPriorityQueues(mChans), mReceiveFIFO(mChans), |
| 142 | mRxServiceLoopThreads(mChans), mRxLowerLoopThread(nullptr), mTxLowerLoopThread(nullptr), |
| 143 | mTxPriorityQueueServiceLoopThreads(mChans), mTransmitLatency(wTransmitLatency), mRadioInterface(wRadioInterface), |
| 144 | mOn(false),mForceClockInterface(false), mTxFreq(0.0), mRxFreq(0.0), mTSC(0), mMaxExpectedDelayAB(0), |
| 145 | mMaxExpectedDelayNB(0), mWriteBurstToDiskMask(0), mVersionTRXD(mChans), mStates(mChans) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 146 | { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 147 | txFullScale = mRadioInterface->fullScaleInputValue(); |
| 148 | rxFullScale = mRadioInterface->fullScaleOutputValue(); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 149 | |
Vadim Yanitskiy | 0ff9c9f | 2020-10-24 16:48:33 +0700 | [diff] [blame] | 150 | for (size_t i = 0; i < ARRAY_SIZE(mHandover); i++) { |
| 151 | for (size_t j = 0; j < ARRAY_SIZE(mHandover[i]); j++) |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 152 | mHandover[i][j] = false; |
| 153 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 154 | } |
| 155 | |
| 156 | Transceiver::~Transceiver() |
| 157 | { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 158 | stop(); |
| 159 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 160 | sigProcLibDestroy(); |
Thomas Tsou | d647ec5 | 2013-10-29 15:17:34 -0400 | [diff] [blame] | 161 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 162 | if (mClockSocket >= 0) |
| 163 | close(mClockSocket); |
| 164 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 165 | for (size_t i = 0; i < mChans; i++) { |
| 166 | mTxPriorityQueues[i].clear(); |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 167 | if (mDataSockets[i] >= 0) |
| 168 | close(mDataSockets[i]); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 169 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 170 | } |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 171 | |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 172 | int Transceiver::ctrl_sock_cb(struct osmo_fd *bfd, unsigned int flags) |
| 173 | { |
| 174 | int rc = 0; |
| 175 | int chan = static_cast<int>(reinterpret_cast<uintptr_t>(bfd->data)); |
| 176 | |
| 177 | if (flags & OSMO_FD_READ) |
| 178 | rc = transceiver->ctrl_sock_handle_rx(chan); |
| 179 | if (rc < 0) |
| 180 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
| 181 | |
| 182 | if (flags & OSMO_FD_WRITE) |
| 183 | rc = transceiver->ctrl_sock_write(chan); |
| 184 | if (rc < 0) |
| 185 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
| 186 | |
| 187 | return rc; |
| 188 | } |
| 189 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 190 | /* |
| 191 | * Initialize transceiver |
| 192 | * |
| 193 | * Start or restart the control loop. Any further control is handled through the |
| 194 | * socket API. Randomize the central radio clock set the downlink burst |
| 195 | * counters. Note that the clock will not update until the radio starts, but we |
| 196 | * are still expected to report clock indications through control channel |
| 197 | * activity. |
| 198 | */ |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 199 | bool Transceiver::init() |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 200 | { |
Thomas Tsou | e1ce925 | 2013-11-13 22:40:44 -0500 | [diff] [blame] | 201 | int d_srcport, d_dstport, c_srcport, c_dstport; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 202 | if (!mChans) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 203 | LOG(FATAL) << "No channels assigned"; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 204 | return false; |
| 205 | } |
| 206 | |
Tom Tsou | 2079a3c | 2016-03-06 00:58:56 -0800 | [diff] [blame] | 207 | if (!sigProcLibSetup()) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 208 | LOG(FATAL) << "Failed to initialize signal processing library"; |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 209 | return false; |
| 210 | } |
| 211 | |
Eric | cca5d93 | 2023-07-25 18:44:03 +0200 | [diff] [blame] | 212 | initvita(); |
| 213 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 214 | mDataSockets.resize(mChans, -1); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 215 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 216 | |
Thomas Tsou | ccb73e1 | 2014-04-15 17:41:28 -0400 | [diff] [blame] | 217 | /* Filler table retransmissions - support only on channel 0 */ |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 218 | if (cfg->filler == FILLER_DUMMY) |
Thomas Tsou | ccb73e1 | 2014-04-15 17:41:28 -0400 | [diff] [blame] | 219 | mStates[0].mRetrans = true; |
| 220 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 221 | /* Setup sockets */ |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 222 | mClockSocket = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 223 | cfg->bind_addr, cfg->base_port, |
| 224 | cfg->remote_addr, cfg->base_port + 100, |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 225 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
Pau Espin Pedrol | e7195ac | 2019-08-26 10:55:04 +0200 | [diff] [blame] | 226 | if (mClockSocket < 0) |
| 227 | return false; |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 228 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 229 | for (size_t i = 0; i < mChans; i++) { |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 230 | int rv; |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 231 | FillerType filler = cfg->filler; |
| 232 | c_srcport = cfg->base_port + 2 * i + 1; |
| 233 | c_dstport = cfg->base_port + 2 * i + 101; |
| 234 | d_srcport = cfg->base_port + 2 * i + 2; |
| 235 | d_dstport = cfg->base_port + 2 * i + 102; |
Thomas Tsou | e1ce925 | 2013-11-13 22:40:44 -0500 | [diff] [blame] | 236 | |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 237 | rv = osmo_sock_init2_ofd(&mCtrlSockets[i].conn_bfd, AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 238 | cfg->bind_addr, c_srcport, |
| 239 | cfg->remote_addr, c_dstport, |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 240 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 241 | if (rv < 0) |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 242 | return false; |
| 243 | |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 244 | mCtrlSockets[i].conn_bfd.cb = ctrl_sock_cb; |
| 245 | mCtrlSockets[i].conn_bfd.data = reinterpret_cast<void*>(i); |
| 246 | |
| 247 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 248 | mDataSockets[i] = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 249 | cfg->bind_addr, d_srcport, |
| 250 | cfg->remote_addr, d_dstport, |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 251 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
Eric | 1a26b4f | 2020-04-13 00:03:01 +0200 | [diff] [blame] | 252 | if (mDataSockets[i] < 0) |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 253 | return false; |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 254 | |
| 255 | if (i && filler == FILLER_DUMMY) |
| 256 | filler = FILLER_ZERO; |
| 257 | |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 258 | mStates[i].init(filler, cfg->tx_sps, txFullScale, cfg->rtsc, cfg->rach_delay); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 259 | } |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 260 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 261 | /* Randomize the central clock */ |
| 262 | GSM::Time startTime(random() % gHyperframe, 0); |
| 263 | mRadioInterface->getClock()->set(startTime); |
| 264 | mTransmitDeadlineClock = startTime; |
| 265 | mLastClockUpdateTime = startTime; |
| 266 | mLatencyUpdateTime = startTime; |
| 267 | |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 268 | return true; |
| 269 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 270 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 271 | /* |
| 272 | * Start the transceiver |
| 273 | * |
| 274 | * Submit command(s) to the radio device to commence streaming samples and |
| 275 | * launch threads to handle sample I/O. Re-synchronize the transmit burst |
| 276 | * counters to the central radio clock here as well. |
| 277 | */ |
| 278 | bool Transceiver::start() |
| 279 | { |
| 280 | ScopedLock lock(mLock); |
| 281 | |
| 282 | if (mOn) { |
| 283 | LOG(ERR) << "Transceiver already running"; |
Ivan Kluchnikov | 194a9b1 | 2015-04-23 17:08:27 +0300 | [diff] [blame] | 284 | return true; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 285 | } |
| 286 | |
| 287 | LOG(NOTICE) << "Starting the transceiver"; |
| 288 | |
| 289 | GSM::Time time = mRadioInterface->getClock()->get(); |
| 290 | mTransmitDeadlineClock = time; |
| 291 | mLastClockUpdateTime = time; |
| 292 | mLatencyUpdateTime = time; |
| 293 | |
| 294 | if (!mRadioInterface->start()) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 295 | LOG(FATAL) << "Device failed to start"; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 296 | return false; |
| 297 | } |
| 298 | |
| 299 | /* Device is running - launch I/O threads */ |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 300 | mRxLowerLoopThread = new Thread(cfg->stack_size); |
| 301 | mTxLowerLoopThread = new Thread(cfg->stack_size); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 302 | mTxLowerLoopThread->start((void * (*)(void*)) |
| 303 | TxLowerLoopAdapter,(void*) this); |
| 304 | mRxLowerLoopThread->start((void * (*)(void*)) |
| 305 | RxLowerLoopAdapter,(void*) this); |
| 306 | |
| 307 | /* Launch uplink and downlink burst processing threads */ |
| 308 | for (size_t i = 0; i < mChans; i++) { |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 309 | TrxChanThParams *params = (TrxChanThParams *)malloc(sizeof(struct TrxChanThParams)); |
| 310 | params->trx = this; |
| 311 | params->num = i; |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 312 | mRxServiceLoopThreads[i] = new Thread(cfg->stack_size); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 313 | mRxServiceLoopThreads[i]->start((void * (*)(void*)) |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 314 | RxUpperLoopAdapter, (void*) params); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 315 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 316 | params = (TrxChanThParams *)malloc(sizeof(struct TrxChanThParams)); |
| 317 | params->trx = this; |
| 318 | params->num = i; |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 319 | mTxPriorityQueueServiceLoopThreads[i] = new Thread(cfg->stack_size); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 320 | mTxPriorityQueueServiceLoopThreads[i]->start((void * (*)(void*)) |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 321 | TxUpperLoopAdapter, (void*) params); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 322 | } |
| 323 | |
Pau Espin Pedrol | 934da48 | 2017-07-04 16:25:20 +0200 | [diff] [blame] | 324 | mForceClockInterface = true; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 325 | mOn = true; |
| 326 | return true; |
| 327 | } |
| 328 | |
| 329 | /* |
| 330 | * Stop the transceiver |
| 331 | * |
| 332 | * Perform stopping by disabling receive streaming and issuing cancellation |
| 333 | * requests to running threads. Most threads will timeout and terminate once |
| 334 | * device is disabled, but the transmit loop may block waiting on the central |
| 335 | * UMTS clock. Explicitly signal the clock to make sure that the transmit loop |
| 336 | * makes it to the thread cancellation point. |
| 337 | */ |
| 338 | void Transceiver::stop() |
| 339 | { |
| 340 | ScopedLock lock(mLock); |
| 341 | |
| 342 | if (!mOn) |
| 343 | return; |
| 344 | |
| 345 | LOG(NOTICE) << "Stopping the transceiver"; |
| 346 | mTxLowerLoopThread->cancel(); |
| 347 | mRxLowerLoopThread->cancel(); |
Tom Tsou | d67bd60 | 2017-06-15 15:35:02 -0700 | [diff] [blame] | 348 | mTxLowerLoopThread->join(); |
| 349 | mRxLowerLoopThread->join(); |
| 350 | delete mTxLowerLoopThread; |
| 351 | delete mRxLowerLoopThread; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 352 | |
| 353 | for (size_t i = 0; i < mChans; i++) { |
| 354 | mRxServiceLoopThreads[i]->cancel(); |
| 355 | mTxPriorityQueueServiceLoopThreads[i]->cancel(); |
| 356 | } |
| 357 | |
| 358 | LOG(INFO) << "Stopping the device"; |
| 359 | mRadioInterface->stop(); |
| 360 | |
| 361 | for (size_t i = 0; i < mChans; i++) { |
| 362 | mRxServiceLoopThreads[i]->join(); |
| 363 | mTxPriorityQueueServiceLoopThreads[i]->join(); |
| 364 | delete mRxServiceLoopThreads[i]; |
| 365 | delete mTxPriorityQueueServiceLoopThreads[i]; |
| 366 | |
| 367 | mTxPriorityQueues[i].clear(); |
| 368 | } |
| 369 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 370 | mOn = false; |
| 371 | LOG(NOTICE) << "Transceiver stopped"; |
| 372 | } |
| 373 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 374 | void Transceiver::addRadioVector(size_t chan, BitVector &bits, |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 375 | int RSSI, GSM::Time &wTime) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 376 | { |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 377 | signalVector *burst; |
| 378 | radioVector *radio_burst; |
| 379 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 380 | if (chan >= mTxPriorityQueues.size()) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 381 | LOGCHAN(chan, DTRXDDL, FATAL) << "Invalid channel"; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 382 | return; |
| 383 | } |
| 384 | |
Thomas Tsou | 2d0c00b | 2013-11-14 15:28:23 -0500 | [diff] [blame] | 385 | if (wTime.TN() > 7) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 386 | LOGCHAN(chan, DTRXDDL, FATAL) << "Received burst with invalid slot " << wTime.TN(); |
Thomas Tsou | 2d0c00b | 2013-11-14 15:28:23 -0500 | [diff] [blame] | 387 | return; |
| 388 | } |
| 389 | |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 390 | /* Use the number of bits as the EDGE burst indicator */ |
| 391 | if (bits.size() == EDGE_BURST_NBITS) |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 392 | burst = modulateEdgeBurst(bits, cfg->tx_sps); |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 393 | else |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 394 | burst = modulateBurst(bits, 8 + (wTime.TN() % 4 == 0), cfg->tx_sps); |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 395 | |
Vadim Yanitskiy | 2a637a5 | 2021-01-26 23:55:22 +0100 | [diff] [blame] | 396 | scaleVector(*burst, txFullScale * pow(10, (double) -RSSI / 20)); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 397 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 398 | radio_burst = new radioVector(wTime, burst); |
| 399 | |
| 400 | mTxPriorityQueues[chan].write(radio_burst); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 401 | } |
| 402 | |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 403 | void Transceiver::updateFillerTable(size_t chan, radioVector *burst) |
| 404 | { |
| 405 | int TN, modFN; |
| 406 | TransceiverState *state = &mStates[chan]; |
| 407 | |
| 408 | TN = burst->getTime().TN(); |
| 409 | modFN = burst->getTime().FN() % state->fillerModulus[TN]; |
| 410 | |
| 411 | delete state->fillerTable[modFN][TN]; |
| 412 | state->fillerTable[modFN][TN] = burst->getVector(); |
| 413 | burst->setVector(NULL); |
| 414 | } |
| 415 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 416 | void Transceiver::pushRadioVector(GSM::Time &nowTime) |
| 417 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 418 | int TN, modFN; |
| 419 | radioVector *burst; |
| 420 | TransceiverState *state; |
| 421 | std::vector<signalVector *> bursts(mChans); |
| 422 | std::vector<bool> zeros(mChans); |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 423 | std::vector<bool> filler(mChans, true); |
Pau Espin Pedrol | 1d0c6fe | 2020-07-09 18:09:10 +0200 | [diff] [blame] | 424 | bool ratectr_changed; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 425 | |
Pau Espin Pedrol | 8b0c536 | 2020-07-09 17:39:20 +0200 | [diff] [blame] | 426 | TN = nowTime.TN(); |
| 427 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 428 | for (size_t i = 0; i < mChans; i ++) { |
| 429 | state = &mStates[i]; |
Pau Espin Pedrol | 1d0c6fe | 2020-07-09 18:09:10 +0200 | [diff] [blame] | 430 | ratectr_changed = false; |
| 431 | |
Pau Espin Pedrol | 7d8676a | 2020-08-26 14:30:46 +0200 | [diff] [blame] | 432 | zeros[i] = state->chanType[TN] == NONE || state->mMuted; |
Pau Espin Pedrol | 8b0c536 | 2020-07-09 17:39:20 +0200 | [diff] [blame] | 433 | |
| 434 | Mutex *mtx = mTxPriorityQueues[i].getMutex(); |
| 435 | mtx->lock(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 436 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 437 | while ((burst = mTxPriorityQueues[i].getStaleBurst(nowTime))) { |
Pau Espin Pedrol | c249ce2 | 2020-07-17 18:33:10 +0200 | [diff] [blame] | 438 | LOGCHAN(i, DTRXDDL, INFO) << "dumping STALE burst in TRX->SDR interface (" |
Pau Espin Pedrol | f37b0ad | 2018-04-25 18:01:27 +0200 | [diff] [blame] | 439 | << burst->getTime() <<" vs " << nowTime << "), retrans=" << state->mRetrans; |
Pau Espin Pedrol | 92ba59d | 2020-06-29 14:34:59 +0200 | [diff] [blame] | 440 | state->ctrs.tx_stale_bursts++; |
Pau Espin Pedrol | 1d0c6fe | 2020-07-09 18:09:10 +0200 | [diff] [blame] | 441 | ratectr_changed = true; |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 442 | if (state->mRetrans) |
| 443 | updateFillerTable(i, burst); |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 444 | delete burst; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 445 | } |
| 446 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 447 | if ((burst = mTxPriorityQueues[i].getCurrentBurst(nowTime))) { |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 448 | bursts[i] = burst->getVector(); |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 449 | |
| 450 | if (state->mRetrans) { |
| 451 | updateFillerTable(i, burst); |
| 452 | } else { |
| 453 | burst->setVector(NULL); |
| 454 | filler[i] = false; |
| 455 | } |
| 456 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 457 | delete burst; |
Pau Espin Pedrol | 8b0c536 | 2020-07-09 17:39:20 +0200 | [diff] [blame] | 458 | } else { |
| 459 | modFN = nowTime.FN() % state->fillerModulus[TN]; |
| 460 | bursts[i] = state->fillerTable[modFN][TN]; |
Pau Espin Pedrol | df67578 | 2020-07-17 14:09:28 +0200 | [diff] [blame] | 461 | if (i == 0 && state->mFiller == FILLER_ZERO) { |
Pau Espin Pedrol | c249ce2 | 2020-07-17 18:33:10 +0200 | [diff] [blame] | 462 | LOGCHAN(i, DTRXDDL, INFO) << "No Tx burst available for " << nowTime |
Pau Espin Pedrol | 1d0c6fe | 2020-07-09 18:09:10 +0200 | [diff] [blame] | 463 | << ", retrans=" << state->mRetrans; |
| 464 | state->ctrs.tx_unavailable_bursts++; |
| 465 | ratectr_changed = true; |
| 466 | } |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 467 | } |
Pau Espin Pedrol | 8b0c536 | 2020-07-09 17:39:20 +0200 | [diff] [blame] | 468 | |
| 469 | mtx->unlock(); |
| 470 | |
Pau Espin Pedrol | 1d0c6fe | 2020-07-09 18:09:10 +0200 | [diff] [blame] | 471 | if (ratectr_changed) |
Pau Espin Pedrol | 8b0c536 | 2020-07-09 17:39:20 +0200 | [diff] [blame] | 472 | dispatch_trx_rate_ctr_change(state, i); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 473 | } |
| 474 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 475 | mRadioInterface->driveTransmitRadio(bursts, zeros); |
| 476 | |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 477 | for (size_t i = 0; i < mChans; i++) { |
| 478 | if (!filler[i]) |
| 479 | delete bursts[i]; |
| 480 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 481 | } |
| 482 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 483 | void Transceiver::setModulus(size_t timeslot, size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 484 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 485 | TransceiverState *state = &mStates[chan]; |
| 486 | |
| 487 | switch (state->chanType[timeslot]) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 488 | case NONE: |
| 489 | case I: |
| 490 | case II: |
| 491 | case III: |
| 492 | case FILL: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 493 | state->fillerModulus[timeslot] = 26; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 494 | break; |
| 495 | case IV: |
| 496 | case VI: |
| 497 | case V: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 498 | state->fillerModulus[timeslot] = 51; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 499 | break; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 500 | //case V: |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 501 | case VII: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 502 | state->fillerModulus[timeslot] = 102; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 503 | break; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 504 | case XIII: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 505 | state->fillerModulus[timeslot] = 52; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 506 | break; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 507 | default: |
| 508 | break; |
| 509 | } |
| 510 | } |
| 511 | |
| 512 | |
Alexander Chemeris | f9e78be | 2017-03-17 15:00:34 -0700 | [diff] [blame] | 513 | CorrType Transceiver::expectedCorrType(GSM::Time currTime, |
| 514 | size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 515 | { |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 516 | 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 }; |
| 517 | 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, |
| 518 | 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 }; |
| 519 | 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, |
| 520 | 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] | 521 | TransceiverState *state = &mStates[chan]; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 522 | unsigned burstTN = currTime.TN(); |
| 523 | unsigned burstFN = currTime.FN(); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 524 | int subch; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 525 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 526 | switch (state->chanType[burstTN]) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 527 | case NONE: |
| 528 | return OFF; |
| 529 | break; |
| 530 | case FILL: |
| 531 | return IDLE; |
| 532 | break; |
| 533 | case I: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 534 | // TODO: Are we expecting RACH on an IDLE frame? |
| 535 | /* if (burstFN % 26 == 25) |
| 536 | return IDLE;*/ |
| 537 | if (mHandover[burstTN][0]) |
| 538 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 539 | return TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 540 | break; |
| 541 | case II: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 542 | subch = tchh_subslot[burstFN % 26]; |
| 543 | if (subch == 1) |
| 544 | return IDLE; |
| 545 | if (mHandover[burstTN][0]) |
| 546 | return RACH; |
ttsou | 2064297 | 2013-03-27 22:00:25 +0000 | [diff] [blame] | 547 | return TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 548 | break; |
| 549 | case III: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 550 | subch = tchh_subslot[burstFN % 26]; |
| 551 | if (mHandover[burstTN][subch]) |
| 552 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 553 | return TSC; |
| 554 | break; |
| 555 | case IV: |
| 556 | case VI: |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 557 | return cfg->ext_rach ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 558 | break; |
| 559 | case V: { |
| 560 | int mod51 = burstFN % 51; |
| 561 | if ((mod51 <= 36) && (mod51 >= 14)) |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 562 | return cfg->ext_rach ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 563 | else if ((mod51 == 4) || (mod51 == 5)) |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 564 | return cfg->ext_rach ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 565 | else if ((mod51 == 45) || (mod51 == 46)) |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 566 | return cfg->ext_rach ? EXT_RACH : RACH; |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 567 | else if (mHandover[burstTN][sdcch4_subslot[burstFN % 102]]) |
| 568 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 569 | else |
| 570 | return TSC; |
| 571 | break; |
| 572 | } |
| 573 | case VII: |
| 574 | if ((burstFN % 51 <= 14) && (burstFN % 51 >= 12)) |
| 575 | return IDLE; |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 576 | else if (mHandover[burstTN][sdcch8_subslot[burstFN % 102]]) |
| 577 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 578 | else |
| 579 | return TSC; |
| 580 | break; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 581 | case XIII: { |
| 582 | int mod52 = burstFN % 52; |
| 583 | if ((mod52 == 12) || (mod52 == 38)) |
Vadim Yanitskiy | 00ddcfa | 2022-10-26 04:11:28 +0700 | [diff] [blame] | 584 | return RACH; /* RACH is always 8-bit on PTCCH/U */ |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 585 | else if ((mod52 == 25) || (mod52 == 51)) |
| 586 | return IDLE; |
Pau Espin Pedrol | bfc1d0b | 2019-08-26 16:34:45 +0200 | [diff] [blame] | 587 | else /* Enable 8-PSK burst detection if EDGE is enabled */ |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 588 | return cfg->egprs ? EDGE : TSC; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 589 | break; |
| 590 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 591 | case LOOPBACK: |
| 592 | if ((burstFN % 51 <= 50) && (burstFN % 51 >=48)) |
| 593 | return IDLE; |
| 594 | else |
| 595 | return TSC; |
| 596 | break; |
| 597 | default: |
| 598 | return OFF; |
| 599 | break; |
| 600 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 601 | } |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 602 | |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 603 | void writeToFile(radioVector *radio_burst, size_t chan) |
| 604 | { |
| 605 | GSM::Time time = radio_burst->getTime(); |
| 606 | std::ostringstream fname; |
| 607 | fname << chan << "_" << time.FN() << "_" << time.TN() << ".fc"; |
| 608 | std::ofstream outfile (fname.str().c_str(), std::ofstream::binary); |
| 609 | outfile.write((char*)radio_burst->getVector()->begin(), radio_burst->getVector()->size() * 2 * sizeof(float)); |
| 610 | outfile.close(); |
| 611 | } |
| 612 | |
Pau Espin Pedrol | e91544d | 2020-10-13 17:03:37 +0200 | [diff] [blame] | 613 | double Transceiver::rssiOffset(size_t chan) |
| 614 | { |
| 615 | if (cfg->force_rssi_offset) |
| 616 | return cfg->rssi_offset; |
| 617 | return mRadioInterface->rssiOffset(chan) + cfg->rssi_offset; |
| 618 | } |
| 619 | |
Eric | cca5d93 | 2023-07-25 18:44:03 +0200 | [diff] [blame] | 620 | static SoftVector *demodAnyBurst_va(const signalVector &burst, CorrType type, int sps, int rach_max_toa, int tsc) |
| 621 | { |
| 622 | auto conved_beg = reinterpret_cast<const std::complex<float> *>(&burst.begin()[0]); |
| 623 | std::complex<float> chan_imp_resp[CHAN_IMP_RESP_LENGTH * d_OSR]; |
| 624 | float ncmax; |
| 625 | const unsigned burst_len_bits = 148 + 8; |
| 626 | char demodded_softbits[burst_len_bits]; |
| 627 | SoftVector *bits = new SoftVector(burst_len_bits); |
| 628 | |
| 629 | if (type == CorrType::TSC) { |
| 630 | auto rach_burst_start = get_norm_chan_imp_resp(conved_beg, chan_imp_resp, &ncmax, tsc); |
| 631 | rach_burst_start = std::max(rach_burst_start, 0); |
| 632 | detect_burst_nb(conved_beg, chan_imp_resp, rach_burst_start, demodded_softbits); |
| 633 | } else { |
| 634 | auto normal_burst_start = get_access_imp_resp(conved_beg, chan_imp_resp, &ncmax, 0); |
| 635 | normal_burst_start = std::max(normal_burst_start, 0); |
| 636 | detect_burst_ab(conved_beg, chan_imp_resp, normal_burst_start, demodded_softbits, rach_max_toa); |
| 637 | } |
| 638 | |
| 639 | float *s = &bits->begin()[0]; |
| 640 | for (unsigned int i = 0; i < 148; i++) |
| 641 | s[i] = demodded_softbits[i] * -1; |
| 642 | for (unsigned int i = 148; i < burst_len_bits; i++) |
| 643 | s[i] = 0; |
| 644 | return bits; |
| 645 | } |
| 646 | |
| 647 | #define USE_VA |
| 648 | |
| 649 | #ifdef USE_VA |
| 650 | // signalvector is owning despite claiming not to, but we can pretend, too.. |
| 651 | static void dummy_free(void *wData){}; |
| 652 | static void *dummy_alloc(size_t newSize) |
| 653 | { |
| 654 | return 0; |
| 655 | }; |
| 656 | #endif |
| 657 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 658 | /* |
| 659 | * Pull bursts from the FIFO and handle according to the slot |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 660 | * and burst correlation type. Equalzation is currently disabled. |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 661 | * returns 0 on success (bi filled), negative on error (bi content undefined): |
| 662 | * -ENOENT: timeslot is off (fn and tn in bi are filled), |
| 663 | * -EIO: read error |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 664 | */ |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 665 | int Transceiver::pullRadioVector(size_t chan, struct trx_ul_burst_ind *bi) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 666 | { |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 667 | int rc; |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 668 | struct estim_burst_params ebp; |
| 669 | float max = -1.0, avg = 0.0; |
Pau Espin Pedrol | 9bb24a1 | 2019-07-03 15:43:03 +0200 | [diff] [blame] | 670 | unsigned max_toa; |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 671 | int max_i = -1; |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 672 | signalVector *burst; |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 673 | GSM::Time burstTime; |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 674 | SoftVector *rxBurst; |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 675 | TransceiverState *state = &mStates[chan]; |
Pau Espin Pedrol | 1d165a0 | 2020-07-27 11:52:42 +0200 | [diff] [blame] | 676 | bool ctr_changed = false; |
Pau Espin Pedrol | e91544d | 2020-10-13 17:03:37 +0200 | [diff] [blame] | 677 | double rssi_offset; |
Eric | cca5d93 | 2023-07-25 18:44:03 +0200 | [diff] [blame] | 678 | static complex burst_shift_buffer[625]; |
| 679 | static signalVector shift_vec(burst_shift_buffer, 0, 625, dummy_alloc, dummy_free); |
| 680 | signalVector *shvec_ptr = &shift_vec; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 681 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 682 | /* Blocking FIFO read */ |
| 683 | radioVector *radio_burst = mReceiveFIFO[chan]->read(); |
Pau Espin Pedrol | 94c5241 | 2019-09-06 13:48:35 +0200 | [diff] [blame] | 684 | if (!radio_burst) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 685 | LOGCHAN(chan, DTRXDUL, ERROR) << "ReceiveFIFO->read() returned no burst"; |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 686 | return -EIO; |
Pau Espin Pedrol | 94c5241 | 2019-09-06 13:48:35 +0200 | [diff] [blame] | 687 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 688 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 689 | /* Set time and determine correlation type */ |
Eric | c27fe60 | 2021-05-05 17:33:18 +0200 | [diff] [blame] | 690 | burstTime = radio_burst->getTime() + cfg->ul_fn_offset; |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 691 | CorrType type = expectedCorrType(burstTime, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 692 | |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 693 | /* Initialize struct bi */ |
| 694 | bi->nbits = 0; |
| 695 | bi->fn = burstTime.FN(); |
| 696 | bi->tn = burstTime.TN(); |
| 697 | bi->rssi = 0.0; |
| 698 | bi->toa = 0.0; |
| 699 | bi->noise = 0.0; |
| 700 | bi->idle = false; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 701 | bi->modulation = MODULATION_GMSK; |
| 702 | bi->tss = 0; /* TODO: we only support tss 0 right now */ |
| 703 | bi->tsc = 0; |
| 704 | bi->ci = 0.0; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 705 | |
Pau Espin Pedrol | 0d56d75 | 2019-09-09 10:20:58 +0200 | [diff] [blame] | 706 | /* Debug: dump bursts to disk */ |
| 707 | /* bits 0-7 - chan 0 timeslots |
| 708 | * bits 8-15 - chan 1 timeslots */ |
| 709 | if (mWriteBurstToDiskMask & ((1<<bi->tn) << (8*chan))) |
| 710 | writeToFile(radio_burst, chan); |
| 711 | |
| 712 | /* No processing if the timeslot is off. |
| 713 | * Not even power level or noise calculation. */ |
| 714 | if (type == OFF) { |
| 715 | delete radio_burst; |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 716 | return -ENOENT; |
Pau Espin Pedrol | 0d56d75 | 2019-09-09 10:20:58 +0200 | [diff] [blame] | 717 | } |
| 718 | |
Pau Espin Pedrol | 7d8676a | 2020-08-26 14:30:46 +0200 | [diff] [blame] | 719 | /* If TRX RF is locked/muted by BTS, send idle burst indications */ |
| 720 | if (state->mMuted) |
| 721 | goto ret_idle; |
| 722 | |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 723 | /* Select the diversity channel with highest energy */ |
| 724 | for (size_t i = 0; i < radio_burst->chans(); i++) { |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 725 | float pow = energyDetect(*radio_burst->getVector(i), 20 * cfg->rx_sps); |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 726 | if (pow > max) { |
| 727 | max = pow; |
| 728 | max_i = i; |
| 729 | } |
| 730 | avg += pow; |
| 731 | } |
| 732 | |
| 733 | if (max_i < 0) { |
Pau Espin Pedrol | 1d165a0 | 2020-07-27 11:52:42 +0200 | [diff] [blame] | 734 | LOGCHAN(chan, DTRXDUL, INFO) << "Received empty burst"; |
| 735 | state->ctrs.rx_empty_burst++; |
| 736 | ctr_changed = true; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 737 | goto ret_idle; |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 738 | } |
| 739 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 740 | /* Average noise on diversity paths and update global levels */ |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 741 | burst = radio_burst->getVector(max_i); |
Thomas Tsou | ef25dba | 2013-11-14 15:31:24 -0500 | [diff] [blame] | 742 | avg = sqrt(avg / radio_burst->chans()); |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 743 | |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 744 | if (type == IDLE) { |
| 745 | /* Update noise levels */ |
| 746 | state->mNoises.insert(avg); |
| 747 | state->mNoiseLev = state->mNoises.avg(); |
Pau Espin Pedrol | be9cd66 | 2019-07-03 15:00:56 +0200 | [diff] [blame] | 748 | } |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 749 | |
Pau Espin Pedrol | e91544d | 2020-10-13 17:03:37 +0200 | [diff] [blame] | 750 | rssi_offset = rssiOffset(chan); |
| 751 | bi->rssi = 20.0 * log10(rxFullScale / avg) + rssi_offset; |
| 752 | bi->noise = 20.0 * log10(rxFullScale / state->mNoiseLev) + rssi_offset; |
Pau Espin Pedrol | be9cd66 | 2019-07-03 15:00:56 +0200 | [diff] [blame] | 753 | |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 754 | if (type == IDLE) |
| 755 | goto ret_idle; |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 756 | |
Pau Espin Pedrol | 9bb24a1 | 2019-07-03 15:43:03 +0200 | [diff] [blame] | 757 | max_toa = (type == RACH || type == EXT_RACH) ? |
| 758 | mMaxExpectedDelayAB : mMaxExpectedDelayNB; |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 759 | |
Eric | cca5d93 | 2023-07-25 18:44:03 +0200 | [diff] [blame] | 760 | if (cfg->use_va) { |
| 761 | // shifted burst copy to make the old demod and detection happy |
| 762 | std::copy(burst->begin() + 20, burst->end() - 20, shift_vec.begin()); |
| 763 | } else { |
| 764 | shvec_ptr = burst; |
| 765 | } |
| 766 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 767 | /* Detect normal or RACH bursts */ |
Eric | cca5d93 | 2023-07-25 18:44:03 +0200 | [diff] [blame] | 768 | rc = detectAnyBurst(*shvec_ptr, mTSC, BURST_THRESH, cfg->rx_sps, type, max_toa, &ebp); |
Pau Espin Pedrol | d6dbb1b | 2019-07-03 15:23:56 +0200 | [diff] [blame] | 769 | if (rc <= 0) { |
Pau Espin Pedrol | 1d165a0 | 2020-07-27 11:52:42 +0200 | [diff] [blame] | 770 | if (rc == -SIGERR_CLIP) { |
| 771 | LOGCHAN(chan, DTRXDUL, INFO) << "Clipping detected on received RACH or Normal Burst"; |
| 772 | state->ctrs.rx_clipping++; |
| 773 | ctr_changed = true; |
| 774 | } else if (rc != SIGERR_NONE) { |
| 775 | LOGCHAN(chan, DTRXDUL, INFO) << "Unhandled RACH or Normal Burst detection error"; |
| 776 | state->ctrs.rx_no_burst_detected++; |
| 777 | ctr_changed = true; |
| 778 | } |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 779 | goto ret_idle; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 780 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 781 | |
Eric | cca5d93 | 2023-07-25 18:44:03 +0200 | [diff] [blame] | 782 | if (cfg->use_va) { |
| 783 | scaleVector(*burst, { (1. / (float)((1 << 14) - 1)), 0 }); |
| 784 | rxBurst = demodAnyBurst_va(*burst, (CorrType)rc, cfg->rx_sps, max_toa, mTSC); |
| 785 | } else { |
| 786 | rxBurst = demodAnyBurst(*shvec_ptr, (CorrType)rc, cfg->rx_sps, &ebp); |
| 787 | } |
| 788 | |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 789 | bi->toa = ebp.toa; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 790 | bi->tsc = ebp.tsc; |
| 791 | bi->ci = ebp.ci; |
Thomas Tsou | ef25dba | 2013-11-14 15:31:24 -0500 | [diff] [blame] | 792 | |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 793 | /* EDGE demodulator returns 444 (gSlotLen * 3) bits */ |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 794 | if (rxBurst->size() == EDGE_BURST_NBITS) { |
| 795 | bi->modulation = MODULATION_8PSK; |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 796 | bi->nbits = EDGE_BURST_NBITS; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 797 | } else { /* size() here is actually gSlotLen + 8, due to guard periods */ |
| 798 | bi->modulation = MODULATION_GMSK; |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 799 | bi->nbits = gSlotLen; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 800 | } |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 801 | |
Pau Espin Pedrol | 25ae190 | 2019-07-01 16:40:44 +0200 | [diff] [blame] | 802 | // Convert -1..+1 soft bits to 0..1 soft bits |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 803 | vectorSlicer(bi->rx_burst, rxBurst->begin(), bi->nbits); |
Pau Espin Pedrol | 25ae190 | 2019-07-01 16:40:44 +0200 | [diff] [blame] | 804 | |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 805 | delete rxBurst; |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 806 | delete radio_burst; |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 807 | return 0; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 808 | |
| 809 | ret_idle: |
Pau Espin Pedrol | 1d165a0 | 2020-07-27 11:52:42 +0200 | [diff] [blame] | 810 | if (ctr_changed) |
| 811 | dispatch_trx_rate_ctr_change(state, chan); |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 812 | bi->idle = true; |
| 813 | delete radio_burst; |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 814 | return 0; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 815 | } |
| 816 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 817 | void Transceiver::reset() |
| 818 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 819 | for (size_t i = 0; i < mTxPriorityQueues.size(); i++) |
| 820 | mTxPriorityQueues[i].clear(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 821 | } |
| 822 | |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 823 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 824 | /** |
| 825 | * Matches a buffer with a command. |
| 826 | * @param buf a buffer to look command in |
| 827 | * @param cmd a command to look in buffer |
| 828 | * @param params pointer to arguments, or NULL |
| 829 | * @return true if command matches, otherwise false |
| 830 | */ |
| 831 | static bool match_cmd(char *buf, |
| 832 | const char *cmd, char **params) |
| 833 | { |
| 834 | size_t cmd_len = strlen(cmd); |
| 835 | |
| 836 | /* Check a command itself */ |
| 837 | if (strncmp(buf, cmd, cmd_len)) |
| 838 | return false; |
| 839 | |
| 840 | /* A command has arguments */ |
| 841 | if (params != NULL) { |
| 842 | /* Make sure there is a space */ |
| 843 | if (buf[cmd_len] != ' ') |
| 844 | return false; |
| 845 | |
| 846 | /* Update external pointer */ |
| 847 | *params = buf + cmd_len + 1; |
| 848 | } |
| 849 | |
| 850 | return true; |
| 851 | } |
| 852 | |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 853 | void Transceiver::ctrl_sock_send(ctrl_msg& m, int chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 854 | { |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 855 | ctrl_sock_state& s = mCtrlSockets[chan]; |
| 856 | struct osmo_fd *conn_bfd = &s.conn_bfd; |
| 857 | |
| 858 | s.txmsgqueue.push_back(m); |
Harald Welte | 94def47 | 2020-10-19 12:28:26 +0200 | [diff] [blame] | 859 | osmo_fd_write_enable(conn_bfd); |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 860 | } |
| 861 | |
| 862 | int Transceiver::ctrl_sock_write(int chan) |
| 863 | { |
| 864 | int rc; |
| 865 | ctrl_sock_state& s = mCtrlSockets[chan]; |
| 866 | |
| 867 | if (s.conn_bfd.fd < 0) { |
| 868 | return -EIO; |
| 869 | } |
| 870 | |
| 871 | while (s.txmsgqueue.size()) { |
| 872 | const ctrl_msg m = s.txmsgqueue.front(); |
| 873 | |
Harald Welte | 94def47 | 2020-10-19 12:28:26 +0200 | [diff] [blame] | 874 | osmo_fd_write_disable(&s.conn_bfd); |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 875 | |
| 876 | /* try to send it over the socket */ |
| 877 | rc = write(s.conn_bfd.fd, m.data, strlen(m.data) + 1); |
| 878 | if (rc == 0) |
| 879 | goto close; |
| 880 | if (rc < 0) { |
| 881 | if (errno == EAGAIN) { |
Harald Welte | 94def47 | 2020-10-19 12:28:26 +0200 | [diff] [blame] | 882 | osmo_fd_write_enable(&s.conn_bfd); |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 883 | break; |
| 884 | } |
| 885 | goto close; |
| 886 | } |
| 887 | |
| 888 | s.txmsgqueue.pop_front(); |
| 889 | } |
| 890 | return 0; |
| 891 | |
| 892 | close: |
| 893 | LOGCHAN(chan, DTRXCTRL, NOTICE) << "mCtrlSockets write(" << s.conn_bfd.fd << ") failed: " << rc; |
| 894 | return -1; |
| 895 | } |
| 896 | |
| 897 | int Transceiver::ctrl_sock_handle_rx(int chan) |
| 898 | { |
| 899 | ctrl_msg cmd_received; |
| 900 | ctrl_msg cmd_to_send; |
| 901 | char *buffer = cmd_received.data; |
| 902 | char *response = cmd_to_send.data; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 903 | char *command, *params; |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 904 | int msgLen; |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 905 | ctrl_sock_state& s = mCtrlSockets[chan]; |
Thomas Tsou | d647ec5 | 2013-10-29 15:17:34 -0400 | [diff] [blame] | 906 | |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 907 | /* Attempt to read from control socket */ |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 908 | msgLen = read(s.conn_bfd.fd, buffer, sizeof(cmd_received.data)-1); |
| 909 | if (msgLen < 0 && errno == EAGAIN) |
| 910 | return 0; /* Try again later */ |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 911 | if (msgLen <= 0) { |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 912 | LOGCHAN(chan, DTRXCTRL, NOTICE) << "mCtrlSockets read(" << s.conn_bfd.fd << ") failed: " << msgLen; |
| 913 | return -EIO; |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 914 | } |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 915 | |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 916 | |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 917 | /* Zero-terminate received string */ |
| 918 | buffer[msgLen] = '\0'; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 919 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 920 | /* Verify a command signature */ |
| 921 | if (strncmp(buffer, "CMD ", 4)) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 922 | LOGCHAN(chan, DTRXCTRL, NOTICE) << "bogus message on control interface"; |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 923 | return -EIO; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 924 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 925 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 926 | /* Set command pointer */ |
| 927 | command = buffer + 4; |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 928 | LOGCHAN(chan, DTRXCTRL, INFO) << "command is '" << command << "'"; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 929 | |
| 930 | if (match_cmd(command, "POWEROFF", NULL)) { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 931 | stop(); |
| 932 | sprintf(response,"RSP POWEROFF 0"); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 933 | } else if (match_cmd(command, "POWERON", NULL)) { |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 934 | if (!start()) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 935 | sprintf(response,"RSP POWERON 1"); |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 936 | } else { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 937 | sprintf(response,"RSP POWERON 0"); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 938 | for (int i = 0; i < 8; i++) { |
| 939 | for (int j = 0; j < 8; j++) |
| 940 | mHandover[i][j] = false; |
| 941 | } |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 942 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 943 | } else if (match_cmd(command, "HANDOVER", ¶ms)) { |
Vadim Yanitskiy | c0c6d70 | 2018-03-09 05:08:23 +0700 | [diff] [blame] | 944 | unsigned ts = 0, ss = 0; |
| 945 | sscanf(params, "%u %u", &ts, &ss); |
| 946 | if (ts > 7 || ss > 7) { |
Pau Espin Pedrol | 0fafe03 | 2019-11-27 13:17:59 +0100 | [diff] [blame] | 947 | sprintf(response, "RSP HANDOVER 1 %u %u", ts, ss); |
Vadim Yanitskiy | c0c6d70 | 2018-03-09 05:08:23 +0700 | [diff] [blame] | 948 | } else { |
| 949 | mHandover[ts][ss] = true; |
| 950 | sprintf(response, "RSP HANDOVER 0 %u %u", ts, ss); |
| 951 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 952 | } else if (match_cmd(command, "NOHANDOVER", ¶ms)) { |
Vadim Yanitskiy | c0c6d70 | 2018-03-09 05:08:23 +0700 | [diff] [blame] | 953 | unsigned ts = 0, ss = 0; |
| 954 | sscanf(params, "%u %u", &ts, &ss); |
| 955 | if (ts > 7 || ss > 7) { |
| 956 | sprintf(response, "RSP NOHANDOVER 1 %u %u", ts, ss); |
| 957 | } else { |
| 958 | mHandover[ts][ss] = false; |
| 959 | sprintf(response, "RSP NOHANDOVER 0 %u %u", ts, ss); |
| 960 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 961 | } else if (match_cmd(command, "SETMAXDLY", ¶ms)) { |
Vadim Yanitskiy | c7fc94d | 2024-01-23 04:12:20 +0700 | [diff] [blame] | 962 | //set expected maximum time-of-arrival for Access Bursts |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 963 | int maxDelay; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 964 | sscanf(params, "%d", &maxDelay); |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 965 | mMaxExpectedDelayAB = maxDelay; // 1 GSM symbol is approx. 1 km |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 966 | sprintf(response,"RSP SETMAXDLY 0 %d",maxDelay); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 967 | } else if (match_cmd(command, "SETMAXDLYNB", ¶ms)) { |
Vadim Yanitskiy | c7fc94d | 2024-01-23 04:12:20 +0700 | [diff] [blame] | 968 | //set expected maximum time-of-arrival for Normal Bursts |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 969 | int maxDelay; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 970 | sscanf(params, "%d", &maxDelay); |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 971 | mMaxExpectedDelayNB = maxDelay; // 1 GSM symbol is approx. 1 km |
| 972 | sprintf(response,"RSP SETMAXDLYNB 0 %d",maxDelay); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 973 | } else if (match_cmd(command, "SETRXGAIN", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 974 | int newGain; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 975 | sscanf(params, "%d", &newGain); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 976 | newGain = mRadioInterface->setRxGain(newGain, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 977 | sprintf(response,"RSP SETRXGAIN 0 %d",newGain); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 978 | } else if (match_cmd(command, "NOISELEV", NULL)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 979 | if (mOn) { |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 980 | float lev = mStates[chan].mNoiseLev; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 981 | sprintf(response,"RSP NOISELEV 0 %d", |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 982 | (int) round(20.0 * log10(rxFullScale / lev))); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 983 | } |
| 984 | else { |
Pau Espin Pedrol | 1b3a888 | 2020-05-29 16:15:18 +0200 | [diff] [blame] | 985 | sprintf(response,"RSP NOISELEV 1 0"); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 986 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 987 | } else if (match_cmd(command, "SETPOWER", ¶ms)) { |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 988 | int power; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 989 | sscanf(params, "%d", &power); |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 990 | power = mRadioInterface->setPowerAttenuation(power, chan); |
| 991 | mStates[chan].mPower = power; |
| 992 | sprintf(response, "RSP SETPOWER 0 %d", power); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 993 | } else if (match_cmd(command, "ADJPOWER", ¶ms)) { |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 994 | int power, step; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 995 | sscanf(params, "%d", &step); |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 996 | power = mStates[chan].mPower + step; |
| 997 | power = mRadioInterface->setPowerAttenuation(power, chan); |
| 998 | mStates[chan].mPower = power; |
| 999 | sprintf(response, "RSP ADJPOWER 0 %d", power); |
Pau Espin Pedrol | 0e09e7c | 2020-05-29 16:39:07 +0200 | [diff] [blame] | 1000 | } else if (match_cmd(command, "NOMTXPOWER", NULL)) { |
| 1001 | int power = mRadioInterface->getNominalTxPower(chan); |
Pau Espin Pedrol | 405f17a | 2020-06-19 14:48:35 +0200 | [diff] [blame] | 1002 | sprintf(response, "RSP NOMTXPOWER 0 %d", power); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 1003 | } else if (match_cmd(command, "RXTUNE", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1004 | // tune receiver |
| 1005 | int freqKhz; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 1006 | sscanf(params, "%d", &freqKhz); |
Vadim Yanitskiy | 3b8f7c4 | 2018-08-23 13:41:06 +0700 | [diff] [blame] | 1007 | mRxFreq = (freqKhz + cfg->freq_offset_khz) * 1e3; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1008 | if (!mRadioInterface->tuneRx(mRxFreq, chan)) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1009 | LOGCHAN(chan, DTRXCTRL, FATAL) << "RX failed to tune"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1010 | sprintf(response,"RSP RXTUNE 1 %d",freqKhz); |
| 1011 | } |
| 1012 | else |
| 1013 | sprintf(response,"RSP RXTUNE 0 %d",freqKhz); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 1014 | } else if (match_cmd(command, "TXTUNE", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1015 | // tune txmtr |
| 1016 | int freqKhz; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 1017 | sscanf(params, "%d", &freqKhz); |
Vadim Yanitskiy | 3b8f7c4 | 2018-08-23 13:41:06 +0700 | [diff] [blame] | 1018 | mTxFreq = (freqKhz + cfg->freq_offset_khz) * 1e3; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1019 | if (!mRadioInterface->tuneTx(mTxFreq, chan)) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1020 | LOGCHAN(chan, DTRXCTRL, FATAL) << "TX failed to tune"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1021 | sprintf(response,"RSP TXTUNE 1 %d",freqKhz); |
| 1022 | } |
| 1023 | else |
| 1024 | sprintf(response,"RSP TXTUNE 0 %d",freqKhz); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 1025 | } else if (match_cmd(command, "SETTSC", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1026 | // set TSC |
Thomas Tsou | 3f32ab5 | 2013-11-15 16:32:54 -0500 | [diff] [blame] | 1027 | unsigned TSC; |
Vadim Yanitskiy | 8c6c5d2 | 2018-03-09 05:01:21 +0700 | [diff] [blame] | 1028 | sscanf(params, "%u", &TSC); |
Tom Tsou | 6031734 | 2017-03-30 19:36:41 -0700 | [diff] [blame] | 1029 | if (TSC > 7) { |
Thomas Tsou | d3fccea | 2013-11-15 14:22:53 -0500 | [diff] [blame] | 1030 | sprintf(response, "RSP SETTSC 1 %d", TSC); |
Tom Tsou | 6031734 | 2017-03-30 19:36:41 -0700 | [diff] [blame] | 1031 | } else { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 1032 | LOGC(DTRXCTRL, NOTICE) << "Changing TSC from " << mTSC << " to " << TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1033 | mTSC = TSC; |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 1034 | sprintf(response,"RSP SETTSC 0 %d", TSC); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1035 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 1036 | } else if (match_cmd(command, "SETSLOT", ¶ms)) { |
Alexander Chemeris | 1fe5282 | 2015-05-20 12:02:29 -0700 | [diff] [blame] | 1037 | // set slot type |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1038 | int corrCode; |
| 1039 | int timeslot; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 1040 | sscanf(params, "%d %d", ×lot, &corrCode); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1041 | if ((timeslot < 0) || (timeslot > 7)) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1042 | LOGCHAN(chan, DTRXCTRL, NOTICE) << "bogus message on control interface"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1043 | sprintf(response,"RSP SETSLOT 1 %d %d",timeslot,corrCode); |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 1044 | return 0; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1045 | } |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1046 | mStates[chan].chanType[timeslot] = (ChannelCombination) corrCode; |
| 1047 | setModulus(timeslot, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1048 | sprintf(response,"RSP SETSLOT 0 %d %d",timeslot,corrCode); |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 1049 | } else if (match_cmd(command, "SETFORMAT", ¶ms)) { |
| 1050 | // set TRXD protocol version |
| 1051 | unsigned version_recv; |
| 1052 | sscanf(params, "%u", &version_recv); |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 1053 | LOGCHAN(chan, DTRXCTRL, INFO) << "BTS requests TRXD version switch: " << version_recv; |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 1054 | if (version_recv > TRX_DATA_FORMAT_VER) { |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 1055 | LOGCHAN(chan, DTRXCTRL, INFO) << "rejecting TRXD version " << version_recv |
Vadim Yanitskiy | b6f238c | 2021-05-27 23:35:21 +0200 | [diff] [blame] | 1056 | << " in favor of " << TRX_DATA_FORMAT_VER; |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 1057 | sprintf(response, "RSP SETFORMAT %u %u", TRX_DATA_FORMAT_VER, version_recv); |
| 1058 | } else { |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 1059 | LOGCHAN(chan, DTRXCTRL, NOTICE) << "switching to TRXD version " << version_recv; |
| 1060 | mVersionTRXD[chan] = version_recv; |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 1061 | sprintf(response, "RSP SETFORMAT %u %u", version_recv, version_recv); |
| 1062 | } |
Pau Espin Pedrol | 7d8676a | 2020-08-26 14:30:46 +0200 | [diff] [blame] | 1063 | } else if (match_cmd(command, "RFMUTE", ¶ms)) { |
| 1064 | // (Un)mute RF TX and RX |
| 1065 | unsigned mute; |
| 1066 | sscanf(params, "%u", &mute); |
| 1067 | mStates[chan].mMuted = mute ? true : false; |
| 1068 | sprintf(response, "RSP RFMUTE 0 %u", mute); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 1069 | } else if (match_cmd(command, "_SETBURSTTODISKMASK", ¶ms)) { |
Martin Hauke | 066fd04 | 2019-10-13 19:08:00 +0200 | [diff] [blame] | 1070 | // debug command! may change or disappear without notice |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 1071 | // set a mask which bursts to dump to disk |
| 1072 | int mask; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 1073 | sscanf(params, "%d", &mask); |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 1074 | mWriteBurstToDiskMask = mask; |
| 1075 | sprintf(response,"RSP _SETBURSTTODISKMASK 0 %d",mask); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 1076 | } else { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1077 | LOGCHAN(chan, DTRXCTRL, NOTICE) << "bogus command " << command << " on control interface."; |
Alexander Chemeris | 4438a9f | 2013-04-08 00:14:08 +0200 | [diff] [blame] | 1078 | sprintf(response,"RSP ERR 1"); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1079 | } |
| 1080 | |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 1081 | LOGCHAN(chan, DTRXCTRL, INFO) << "response is '" << response << "'"; |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 1082 | transceiver->ctrl_sock_send(cmd_to_send, chan); |
| 1083 | return 0; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1084 | } |
| 1085 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1086 | bool Transceiver::driveTxPriorityQueue(size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1087 | { |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1088 | int msgLen; |
Tom Tsou | e887108 | 2016-07-01 02:46:04 -0700 | [diff] [blame] | 1089 | int burstLen; |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 1090 | struct trxd_hdr_v01_dl *dl; |
| 1091 | char buffer[sizeof(*dl) + EDGE_BURST_NBITS]; |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 1092 | uint32_t fn; |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 1093 | uint8_t tn; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1094 | |
| 1095 | // check data socket |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1096 | msgLen = read(mDataSockets[chan], buffer, sizeof(buffer)); |
| 1097 | if (msgLen <= 0) { |
Eric | 1a26b4f | 2020-04-13 00:03:01 +0200 | [diff] [blame] | 1098 | LOGCHAN(chan, DTRXDDL, NOTICE) << "mDataSockets read(" << mDataSockets[chan] << ") failed: " << msgLen; |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1099 | return false; |
| 1100 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1101 | |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 1102 | switch (msgLen) { |
| 1103 | case sizeof(*dl) + gSlotLen: /* GSM burst */ |
| 1104 | burstLen = gSlotLen; |
| 1105 | break; |
| 1106 | case sizeof(*dl) + EDGE_BURST_NBITS: /* EDGE burst */ |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 1107 | if (cfg->tx_sps != 4) { |
| 1108 | LOGCHAN(chan, DTRXDDL, ERROR) << "EDGE burst received but SPS is set to " << cfg->tx_sps; |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 1109 | return false; |
| 1110 | } |
| 1111 | burstLen = EDGE_BURST_NBITS; |
| 1112 | break; |
| 1113 | default: |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1114 | LOGCHAN(chan, DTRXDDL, ERROR) << "badly formatted packet on GSM->TRX interface (len="<< msgLen << ")"; |
Tom Tsou | e887108 | 2016-07-01 02:46:04 -0700 | [diff] [blame] | 1115 | return false; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1116 | } |
| 1117 | |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 1118 | dl = (struct trxd_hdr_v01_dl *) buffer; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1119 | |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 1120 | /* Convert TDMA FN to the host endianness */ |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 1121 | fn = osmo_load32be(&dl->common.fn); |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 1122 | tn = dl->common.tn; |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 1123 | |
Vadim Yanitskiy | dd571c6 | 2019-07-15 23:56:56 +0700 | [diff] [blame] | 1124 | /* Make sure we support the received header format */ |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 1125 | switch (dl->common.version) { |
Vadim Yanitskiy | dd571c6 | 2019-07-15 23:56:56 +0700 | [diff] [blame] | 1126 | case 0: |
| 1127 | /* Version 1 has the same format */ |
| 1128 | case 1: |
| 1129 | break; |
Vadim Yanitskiy | dd571c6 | 2019-07-15 23:56:56 +0700 | [diff] [blame] | 1130 | default: |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1131 | LOGCHAN(chan, DTRXDDL, ERROR) << "Rx TRXD message with unknown header version " << unsigned(dl->common.version); |
Vadim Yanitskiy | dd571c6 | 2019-07-15 23:56:56 +0700 | [diff] [blame] | 1132 | return false; |
| 1133 | } |
| 1134 | |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1135 | LOGCHAN(chan, DTRXDDL, DEBUG) << "Rx TRXD message (hdr_ver=" << unsigned(dl->common.version) |
Pau Espin Pedrol | 9933074 | 2020-07-15 14:05:31 +0200 | [diff] [blame] | 1136 | << "): fn=" << fn << ", tn=" << unsigned(tn) << ", burst_len=" << burstLen; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1137 | |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 1138 | TransceiverState *state = &mStates[chan]; |
| 1139 | GSM::Time currTime = GSM::Time(fn, tn); |
| 1140 | |
| 1141 | /* Verify proper FN order in DL stream */ |
| 1142 | if (state->first_dl_fn_rcv[tn]) { |
| 1143 | int32_t delta = GSM::FNDelta(currTime.FN(), state->last_dl_time_rcv[tn].FN()); |
| 1144 | if (delta == 1) { |
| 1145 | /* usual expected scenario, continue code flow */ |
| 1146 | } else if (delta == 0) { |
Pau Espin Pedrol | c249ce2 | 2020-07-17 18:33:10 +0200 | [diff] [blame] | 1147 | LOGCHAN(chan, DTRXDDL, INFO) << "Rx TRXD msg with repeated FN " << currTime; |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 1148 | state->ctrs.tx_trxd_fn_repeated++; |
| 1149 | dispatch_trx_rate_ctr_change(state, chan); |
| 1150 | return true; |
| 1151 | } else if (delta < 0) { |
Pau Espin Pedrol | c249ce2 | 2020-07-17 18:33:10 +0200 | [diff] [blame] | 1152 | LOGCHAN(chan, DTRXDDL, INFO) << "Rx TRXD msg with previous FN " << currTime |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 1153 | << " vs last " << state->last_dl_time_rcv[tn]; |
| 1154 | state->ctrs.tx_trxd_fn_outoforder++; |
| 1155 | dispatch_trx_rate_ctr_change(state, chan); |
| 1156 | /* Allow adding radio vector below, since it gets sorted in the queue */ |
| 1157 | } else if (chan == 0 && state->mFiller == FILLER_ZERO) { |
| 1158 | /* delta > 1. Some FN was lost in the middle. We can only easily rely |
| 1159 | * on consecutive FNs in TRX0 since it must transmit continuously in all |
| 1160 | * setups. Also, osmo-trx supports optionally filling empty bursts on |
| 1161 | * its own. In that case bts-trx is not obliged to submit all bursts. */ |
Pau Espin Pedrol | c249ce2 | 2020-07-17 18:33:10 +0200 | [diff] [blame] | 1162 | LOGCHAN(chan, DTRXDDL, INFO) << "Rx TRXD msg with future FN " << currTime |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 1163 | << " vs last " << state->last_dl_time_rcv[tn] |
| 1164 | << ", " << delta - 1 << " FN lost"; |
| 1165 | state->ctrs.tx_trxd_fn_skipped += delta - 1; |
| 1166 | dispatch_trx_rate_ctr_change(state, chan); |
| 1167 | } |
| 1168 | if (delta > 0) |
| 1169 | state->last_dl_time_rcv[tn] = currTime; |
| 1170 | } else { /* Initial check, simply store state */ |
| 1171 | state->first_dl_fn_rcv[tn] = true; |
| 1172 | state->last_dl_time_rcv[tn] = currTime; |
| 1173 | } |
| 1174 | |
Tom Tsou | 7c741ec | 2016-07-19 11:20:59 -0700 | [diff] [blame] | 1175 | BitVector newBurst(burstLen); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1176 | BitVector::iterator itr = newBurst.begin(); |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 1177 | uint8_t *bufferItr = dl->soft_bits; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1178 | while (itr < newBurst.end()) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1179 | *itr++ = *bufferItr++; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1180 | |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 1181 | addRadioVector(chan, newBurst, dl->tx_att, currTime); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1182 | |
| 1183 | return true; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1184 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1185 | |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1186 | bool Transceiver::driveReceiveRadio() |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1187 | { |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 1188 | int rc = mRadioInterface->driveReceiveRadio(); |
| 1189 | if (rc == 0) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1190 | usleep(100000); |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1191 | return true; |
Alexander Chemeris | 6a2bf0d | 2015-05-24 19:28:09 -0400 | [diff] [blame] | 1192 | } |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1193 | if (rc < 0) |
| 1194 | return false; |
| 1195 | |
| 1196 | if (mForceClockInterface || mTransmitDeadlineClock > mLastClockUpdateTime + GSM::Time(216,0)) { |
Philipp Maier | fdefbfa | 2020-05-22 12:17:13 +0200 | [diff] [blame] | 1197 | if (mForceClockInterface) |
| 1198 | LOGC(DTRXCLK, NOTICE) << "Sending CLOCK indications"; |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1199 | mForceClockInterface = false; |
| 1200 | return writeClockInterface(); |
| 1201 | } |
| 1202 | return true; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1203 | } |
| 1204 | |
Pau Espin Pedrol | 607a414 | 2019-07-01 13:56:17 +0200 | [diff] [blame] | 1205 | 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] | 1206 | { |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 1207 | std::ostringstream os; |
| 1208 | for (size_t i=0; i < bi->nbits; i++) { |
| 1209 | if (bi->rx_burst[i] > 0.5) os << "1"; |
| 1210 | else if (bi->rx_burst[i] > 0.25) os << "|"; |
| 1211 | else if (bi->rx_burst[i] > 0.0) os << "'"; |
| 1212 | else os << "-"; |
| 1213 | } |
| 1214 | |
Pau Espin Pedrol | e91544d | 2020-10-13 17:03:37 +0200 | [diff] [blame] | 1215 | double rssi_offset = rssiOffset(chan); |
| 1216 | |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1217 | LOGCHAN(chan, DTRXDUL, DEBUG) << std::fixed << std::right |
Pau Espin Pedrol | 1fba104 | 2019-09-06 14:22:31 +0200 | [diff] [blame] | 1218 | << " time: " << unsigned(bi->tn) << ":" << bi->fn |
Pau Espin Pedrol | e91544d | 2020-10-13 17:03:37 +0200 | [diff] [blame] | 1219 | << " RSSI: " << std::setw(5) << std::setprecision(1) << (bi->rssi - rssi_offset) |
Pau Espin Pedrol | 607a414 | 2019-07-01 13:56:17 +0200 | [diff] [blame] | 1220 | << "dBFS/" << std::setw(6) << -bi->rssi << "dBm" |
Pau Espin Pedrol | e91544d | 2020-10-13 17:03:37 +0200 | [diff] [blame] | 1221 | << " noise: " << std::setw(5) << std::setprecision(1) << (bi->noise - rssi_offset) |
Pau Espin Pedrol | 607a414 | 2019-07-01 13:56:17 +0200 | [diff] [blame] | 1222 | << "dBFS/" << std::setw(6) << -bi->noise << "dBm" |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1223 | << " TOA: " << std::setw(5) << std::setprecision(2) << bi->toa |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 1224 | << " C/I: " << std::setw(5) << std::setprecision(2) << bi->ci << "dB" |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 1225 | << " bits: " << os; |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 1226 | } |
| 1227 | |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1228 | bool Transceiver::driveReceiveFIFO(size_t chan) |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1229 | { |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1230 | struct trx_ul_burst_ind bi; |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 1231 | int rc; |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1232 | |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 1233 | if ((rc = pullRadioVector(chan, &bi)) < 0) { |
| 1234 | if (rc == -ENOENT) { /* timeslot off, continue processing */ |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1235 | LOGCHAN(chan, DTRXDUL, DEBUG) << unsigned(bi.tn) << ":" << bi.fn << " timeslot is off"; |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 1236 | return true; |
| 1237 | } |
| 1238 | return false; /* other errors: we want to stop the process */ |
| 1239 | } |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1240 | |
Pau Espin Pedrol | 199a306 | 2020-07-27 10:58:51 +0200 | [diff] [blame] | 1241 | if (!bi.idle && log_check_level(DTRXDUL, LOGL_DEBUG)) |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1242 | logRxBurst(chan, &bi); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1243 | |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 1244 | switch (mVersionTRXD[chan]) { |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1245 | case 0: |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1246 | return trxd_send_burst_ind_v0(chan, mDataSockets[chan], &bi); |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 1247 | case 1: |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1248 | return trxd_send_burst_ind_v1(chan, mDataSockets[chan], &bi); |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1249 | default: |
| 1250 | OSMO_ASSERT(false); |
| 1251 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1252 | } |
| 1253 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1254 | void Transceiver::driveTxFIFO() |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1255 | { |
| 1256 | |
| 1257 | /** |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1258 | Features a carefully controlled latency mechanism, to |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1259 | assure that transmit packets arrive at the radio/USRP |
| 1260 | before they need to be transmitted. |
| 1261 | |
| 1262 | Deadline clock indicates the burst that needs to be |
| 1263 | pushed into the FIFO right NOW. If transmit queue does |
| 1264 | not have a burst, stick in filler data. |
| 1265 | */ |
| 1266 | |
| 1267 | |
| 1268 | RadioClock *radioClock = (mRadioInterface->getClock()); |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1269 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1270 | if (mOn) { |
| 1271 | //radioClock->wait(); // wait until clock updates |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1272 | LOGC(DTRXCLK, DEBUG) << "radio clock " << radioClock->get(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1273 | while (radioClock->get() + mTransmitLatency > mTransmitDeadlineClock) { |
| 1274 | // if underrun, then we're not providing bursts to radio/USRP fast |
| 1275 | // enough. Need to increase latency by one GSM frame. |
Thomas Tsou | 02d88d1 | 2013-04-05 15:36:30 -0400 | [diff] [blame] | 1276 | if (mRadioInterface->getWindowType() == RadioDevice::TX_WINDOW_USRP1) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1277 | if (mRadioInterface->isUnderrun()) { |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 1278 | // only update latency at the defined frame interval |
| 1279 | if (radioClock->get() > mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL)) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1280 | mTransmitLatency = mTransmitLatency + GSM::Time(1,0); |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1281 | LOGC(DTRXCLK, INFO) << "new latency: " << mTransmitLatency << " (underrun " |
| 1282 | << radioClock->get() << " vs " |
| 1283 | << mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL) << ")"; |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1284 | mLatencyUpdateTime = radioClock->get(); |
| 1285 | } |
| 1286 | } |
| 1287 | else { |
| 1288 | // if underrun hasn't occurred in the last sec (216 frames) drop |
| 1289 | // transmit latency by a timeslot |
Pau Espin Pedrol | e564f0f | 2018-04-24 18:43:51 +0200 | [diff] [blame] | 1290 | if (mTransmitLatency > mRadioInterface->minLatency()) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1291 | if (radioClock->get() > mLatencyUpdateTime + GSM::Time(216,0)) { |
| 1292 | mTransmitLatency.decTN(); |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1293 | LOGC(DTRXCLK, INFO) << "reduced latency: " << mTransmitLatency; |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1294 | mLatencyUpdateTime = radioClock->get(); |
| 1295 | } |
| 1296 | } |
| 1297 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1298 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1299 | // time to push burst to transmit FIFO |
| 1300 | pushRadioVector(mTransmitDeadlineClock); |
| 1301 | mTransmitDeadlineClock.incTN(); |
| 1302 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1303 | } |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1304 | |
| 1305 | radioClock->wait(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1306 | } |
| 1307 | |
| 1308 | |
| 1309 | |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1310 | bool Transceiver::writeClockInterface() |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1311 | { |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1312 | int msgLen; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1313 | char command[50]; |
| 1314 | // FIXME -- This should be adaptive. |
| 1315 | sprintf(command,"IND CLOCK %llu",(unsigned long long) (mTransmitDeadlineClock.FN()+2)); |
| 1316 | |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1317 | LOGC(DTRXCLK, INFO) << "sending " << command; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1318 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1319 | msgLen = write(mClockSocket, command, strlen(command) + 1); |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1320 | if (msgLen <= 0) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1321 | LOGC(DTRXCLK, ERROR) << "mClockSocket write(" << mClockSocket << ") failed: " << msgLen; |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1322 | return false; |
| 1323 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1324 | |
| 1325 | mLastClockUpdateTime = mTransmitDeadlineClock; |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1326 | return true; |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1327 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1328 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1329 | void *RxUpperLoopAdapter(TrxChanThParams *params) |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1330 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1331 | char thread_name[16]; |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1332 | Transceiver *trx = params->trx; |
| 1333 | size_t num = params->num; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1334 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1335 | free(params); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1336 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1337 | snprintf(thread_name, 16, "RxUpper%zu", num); |
| 1338 | set_selfthread_name(thread_name); |
Pau Espin Pedrol | 553a250 | 2020-07-29 18:05:25 +0200 | [diff] [blame] | 1339 | OSMO_ASSERT(osmo_cpu_sched_vty_apply_localthread() == 0); |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1340 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1341 | while (1) { |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1342 | if (!trx->driveReceiveFIFO(num)) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1343 | LOGCHAN(num, DTRXDUL, FATAL) << "Something went wrong in thread " << thread_name << ", requesting stop"; |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1344 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
| 1345 | break; |
| 1346 | } |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1347 | pthread_testcancel(); |
| 1348 | } |
| 1349 | return NULL; |
| 1350 | } |
| 1351 | |
| 1352 | void *RxLowerLoopAdapter(Transceiver *transceiver) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1353 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1354 | set_selfthread_name("RxLower"); |
Pau Espin Pedrol | 553a250 | 2020-07-29 18:05:25 +0200 | [diff] [blame] | 1355 | OSMO_ASSERT(osmo_cpu_sched_vty_apply_localthread() == 0); |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1356 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1357 | while (1) { |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1358 | if (!transceiver->driveReceiveRadio()) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1359 | LOGC(DTRXDUL, FATAL) << "Something went wrong in thread RxLower, requesting stop"; |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1360 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
| 1361 | break; |
| 1362 | } |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1363 | pthread_testcancel(); |
| 1364 | } |
| 1365 | return NULL; |
| 1366 | } |
| 1367 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1368 | void *TxLowerLoopAdapter(Transceiver *transceiver) |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1369 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1370 | set_selfthread_name("TxLower"); |
Pau Espin Pedrol | 553a250 | 2020-07-29 18:05:25 +0200 | [diff] [blame] | 1371 | OSMO_ASSERT(osmo_cpu_sched_vty_apply_localthread() == 0); |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1372 | |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1373 | while (1) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1374 | transceiver->driveTxFIFO(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1375 | pthread_testcancel(); |
| 1376 | } |
| 1377 | return NULL; |
| 1378 | } |
| 1379 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1380 | void *TxUpperLoopAdapter(TrxChanThParams *params) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1381 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1382 | char thread_name[16]; |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1383 | Transceiver *trx = params->trx; |
| 1384 | size_t num = params->num; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1385 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1386 | free(params); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1387 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1388 | snprintf(thread_name, 16, "TxUpper%zu", num); |
| 1389 | set_selfthread_name(thread_name); |
Pau Espin Pedrol | 553a250 | 2020-07-29 18:05:25 +0200 | [diff] [blame] | 1390 | OSMO_ASSERT(osmo_cpu_sched_vty_apply_localthread() == 0); |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1391 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1392 | while (1) { |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1393 | if (!trx->driveTxPriorityQueue(num)) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1394 | LOGCHAN(num, DTRXDDL, FATAL) << "Something went wrong in thread " << thread_name << ", requesting stop"; |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1395 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
| 1396 | break; |
| 1397 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1398 | pthread_testcancel(); |
| 1399 | } |
| 1400 | return NULL; |
| 1401 | } |