dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2008, 2009, 2010 Free Software Foundation, Inc. |
| 3 | * |
Pau Espin Pedrol | 21d03d3 | 2019-07-22 12:05:52 +0200 | [diff] [blame] | 4 | * SPDX-License-Identifier: GPL-3.0+ |
| 5 | * |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 6 | * This software is distributed under the terms of the GNU Public License. |
| 7 | * See the COPYING file in the main directory for details. |
| 8 | * |
| 9 | * This use of this software may be subject to additional restrictions. |
| 10 | * See the LEGAL file in the main directory for details. |
| 11 | |
| 12 | This program is free software: you can redistribute it and/or modify |
| 13 | it under the terms of the GNU General Public License as published by |
| 14 | the Free Software Foundation, either version 3 of the License, or |
| 15 | (at your option) any later version. |
| 16 | |
| 17 | This program is distributed in the hope that it will be useful, |
| 18 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 20 | GNU General Public License for more details. |
| 21 | |
| 22 | You should have received a copy of the GNU General Public License |
| 23 | along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 24 | */ |
| 25 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 26 | #include <stdio.h> |
Pau Espin Pedrol | 27424a3 | 2019-08-07 12:45:53 +0200 | [diff] [blame] | 27 | #include <netinet/in.h> |
Alexander Chemeris | e8905a0 | 2015-06-03 23:47:56 -0400 | [diff] [blame] | 28 | #include <iomanip> // std::setprecision |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 29 | #include <fstream> |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 30 | #include "Transceiver.h" |
| 31 | #include <Logger.h> |
| 32 | |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 33 | extern "C" { |
| 34 | #include "osmo_signal.h" |
Pau Espin Pedrol | 778b30a | 2019-06-28 13:27:24 +0200 | [diff] [blame] | 35 | #include "proto_trxd.h" |
| 36 | |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 37 | #include <osmocom/core/utils.h> |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 38 | #include <osmocom/core/socket.h> |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 39 | #include <osmocom/core/bits.h> |
Pau Espin Pedrol | 553a250 | 2020-07-29 18:05:25 +0200 | [diff] [blame] | 40 | #include <osmocom/vty/cpu_sched_vty.h> |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 41 | } |
| 42 | |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 43 | #ifdef HAVE_CONFIG_H |
| 44 | #include "config.h" |
| 45 | #endif |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 46 | |
Alexander Chemeris | d734e2d | 2013-06-16 14:30:58 +0400 | [diff] [blame] | 47 | using namespace GSM; |
| 48 | |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 49 | Transceiver *transceiver; |
| 50 | |
kurtis.heimerl | ec842de | 2012-11-23 08:37:32 +0000 | [diff] [blame] | 51 | #define USB_LATENCY_INTRVL 10,0 |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 52 | |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 53 | /* Number of running values use in noise average */ |
| 54 | #define NOISE_CNT 20 |
ttsou | e8dde02 | 2012-12-06 15:43:55 +0000 | [diff] [blame] | 55 | |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 56 | |
| 57 | static void dispatch_trx_rate_ctr_change(TransceiverState *state, unsigned int chan) { |
| 58 | thread_enable_cancel(false); |
| 59 | state->ctrs.chan = chan; |
| 60 | osmo_signal_dispatch(SS_DEVICE, S_TRX_COUNTER_CHANGE, &state->ctrs); |
| 61 | thread_enable_cancel(true); |
| 62 | } |
| 63 | |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 64 | TransceiverState::TransceiverState() |
Pau Espin Pedrol | 7d8676a | 2020-08-26 14:30:46 +0200 | [diff] [blame] | 65 | : mFiller(FILLER_ZERO), mRetrans(false), mNoiseLev(0.0), mNoises(NOISE_CNT), |
Eric | 1f37e4d | 2020-09-04 20:36:34 +0200 | [diff] [blame] | 66 | mPower(0.0), mMuted(false), first_dl_fn_rcv() |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 67 | { |
| 68 | for (int i = 0; i < 8; i++) { |
| 69 | chanType[i] = Transceiver::NONE; |
| 70 | fillerModulus[i] = 26; |
| 71 | chanResponse[i] = NULL; |
| 72 | DFEForward[i] = NULL; |
| 73 | DFEFeedback[i] = NULL; |
| 74 | |
| 75 | for (int n = 0; n < 102; n++) |
| 76 | fillerTable[n][i] = NULL; |
| 77 | } |
Pau Espin Pedrol | a71c5d0 | 2020-07-01 11:50:01 +0200 | [diff] [blame] | 78 | memset(&ctrs, 0, sizeof(struct trx_counters)); |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 79 | } |
| 80 | |
| 81 | TransceiverState::~TransceiverState() |
| 82 | { |
| 83 | for (int i = 0; i < 8; i++) { |
| 84 | delete chanResponse[i]; |
| 85 | delete DFEForward[i]; |
| 86 | delete DFEFeedback[i]; |
| 87 | |
| 88 | for (int n = 0; n < 102; n++) |
| 89 | delete fillerTable[n][i]; |
| 90 | } |
| 91 | } |
| 92 | |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 93 | 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] | 94 | { |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 95 | signalVector *burst; |
| 96 | |
| 97 | if ((sps != 1) && (sps != 4)) |
| 98 | return false; |
| 99 | |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 100 | mFiller = filler; |
| 101 | |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 102 | for (size_t n = 0; n < 8; n++) { |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 103 | for (size_t i = 0; i < 102; i++) { |
| 104 | switch (filler) { |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 105 | case FILLER_DUMMY: |
Tom Tsou | 8ee2f38 | 2016-03-06 20:57:34 -0800 | [diff] [blame] | 106 | burst = generateDummyBurst(sps, n); |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 107 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 108 | case FILLER_NORM_RAND: |
Tom Tsou | 8ee2f38 | 2016-03-06 20:57:34 -0800 | [diff] [blame] | 109 | burst = genRandNormalBurst(rtsc, sps, n); |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 110 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 111 | case FILLER_EDGE_RAND: |
Tom Tsou | af717b2 | 2016-03-06 22:19:15 -0800 | [diff] [blame] | 112 | burst = generateEdgeBurst(rtsc); |
| 113 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 114 | case FILLER_ACCESS_RAND: |
Alexander Chemeris | 37c52c7 | 2016-03-25 18:28:34 +0300 | [diff] [blame] | 115 | burst = genRandAccessBurst(rach_delay, sps, n); |
Alexander Chemeris | 5efe050 | 2016-03-23 17:06:32 +0300 | [diff] [blame] | 116 | break; |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 117 | case FILLER_ZERO: |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 118 | default: |
Tom Tsou | 8ee2f38 | 2016-03-06 20:57:34 -0800 | [diff] [blame] | 119 | burst = generateEmptyBurst(sps, n); |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 120 | } |
| 121 | |
| 122 | scaleVector(*burst, scale); |
| 123 | fillerTable[i][n] = burst; |
| 124 | } |
| 125 | |
Pau Espin Pedrol | efac20b | 2018-02-21 14:59:19 +0100 | [diff] [blame] | 126 | if ((filler == FILLER_NORM_RAND) || |
| 127 | (filler == FILLER_EDGE_RAND)) { |
Alexander Chemeris | f9e78be | 2017-03-17 15:00:34 -0700 | [diff] [blame] | 128 | chanType[n] = TSC; |
Tom Tsou | af717b2 | 2016-03-06 22:19:15 -0800 | [diff] [blame] | 129 | } |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 130 | } |
Tom Tsou | 64ad712 | 2015-05-19 18:26:31 -0700 | [diff] [blame] | 131 | |
| 132 | return false; |
Thomas Tsou | f078273 | 2013-10-29 15:55:47 -0400 | [diff] [blame] | 133 | } |
| 134 | |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 135 | Transceiver::Transceiver(const struct trx_cfg *cfg, |
Alexander Chemeris | e8905a0 | 2015-06-03 23:47:56 -0400 | [diff] [blame] | 136 | GSM::Time wTransmitLatency, |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 137 | RadioInterface *wRadioInterface) |
Eric | 5561f11 | 2022-07-19 21:18:21 +0200 | [diff] [blame^] | 138 | : mChans(cfg->num_chans), cfg(cfg), |
| 139 | mCtrlSockets(mChans), mClockSocket(-1), |
| 140 | mTxPriorityQueues(mChans), mReceiveFIFO(mChans), |
| 141 | mRxServiceLoopThreads(mChans), mRxLowerLoopThread(nullptr), mTxLowerLoopThread(nullptr), |
| 142 | mTxPriorityQueueServiceLoopThreads(mChans), mTransmitLatency(wTransmitLatency), mRadioInterface(wRadioInterface), |
| 143 | mOn(false),mForceClockInterface(false), mTxFreq(0.0), mRxFreq(0.0), mTSC(0), mMaxExpectedDelayAB(0), |
| 144 | mMaxExpectedDelayNB(0), mWriteBurstToDiskMask(0), mVersionTRXD(mChans), mStates(mChans) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 145 | { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 146 | txFullScale = mRadioInterface->fullScaleInputValue(); |
| 147 | rxFullScale = mRadioInterface->fullScaleOutputValue(); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 148 | |
Vadim Yanitskiy | 0ff9c9f | 2020-10-24 16:48:33 +0700 | [diff] [blame] | 149 | for (size_t i = 0; i < ARRAY_SIZE(mHandover); i++) { |
| 150 | for (size_t j = 0; j < ARRAY_SIZE(mHandover[i]); j++) |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 151 | mHandover[i][j] = false; |
| 152 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 153 | } |
| 154 | |
| 155 | Transceiver::~Transceiver() |
| 156 | { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 157 | stop(); |
| 158 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 159 | sigProcLibDestroy(); |
Thomas Tsou | d647ec5 | 2013-10-29 15:17:34 -0400 | [diff] [blame] | 160 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 161 | if (mClockSocket >= 0) |
| 162 | close(mClockSocket); |
| 163 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 164 | for (size_t i = 0; i < mChans; i++) { |
| 165 | mTxPriorityQueues[i].clear(); |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 166 | if (mDataSockets[i] >= 0) |
| 167 | close(mDataSockets[i]); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 168 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 169 | } |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 170 | |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 171 | int Transceiver::ctrl_sock_cb(struct osmo_fd *bfd, unsigned int flags) |
| 172 | { |
| 173 | int rc = 0; |
| 174 | int chan = static_cast<int>(reinterpret_cast<uintptr_t>(bfd->data)); |
| 175 | |
| 176 | if (flags & OSMO_FD_READ) |
| 177 | rc = transceiver->ctrl_sock_handle_rx(chan); |
| 178 | if (rc < 0) |
| 179 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
| 180 | |
| 181 | if (flags & OSMO_FD_WRITE) |
| 182 | rc = transceiver->ctrl_sock_write(chan); |
| 183 | if (rc < 0) |
| 184 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
| 185 | |
| 186 | return rc; |
| 187 | } |
| 188 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 189 | /* |
| 190 | * Initialize transceiver |
| 191 | * |
| 192 | * Start or restart the control loop. Any further control is handled through the |
| 193 | * socket API. Randomize the central radio clock set the downlink burst |
| 194 | * counters. Note that the clock will not update until the radio starts, but we |
| 195 | * are still expected to report clock indications through control channel |
| 196 | * activity. |
| 197 | */ |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 198 | bool Transceiver::init() |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 199 | { |
Thomas Tsou | e1ce925 | 2013-11-13 22:40:44 -0500 | [diff] [blame] | 200 | int d_srcport, d_dstport, c_srcport, c_dstport; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 201 | if (!mChans) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 202 | LOG(FATAL) << "No channels assigned"; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 203 | return false; |
| 204 | } |
| 205 | |
Tom Tsou | 2079a3c | 2016-03-06 00:58:56 -0800 | [diff] [blame] | 206 | if (!sigProcLibSetup()) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 207 | LOG(FATAL) << "Failed to initialize signal processing library"; |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 208 | return false; |
| 209 | } |
| 210 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 211 | mDataSockets.resize(mChans, -1); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 212 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 213 | |
Thomas Tsou | ccb73e1 | 2014-04-15 17:41:28 -0400 | [diff] [blame] | 214 | /* Filler table retransmissions - support only on channel 0 */ |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 215 | if (cfg->filler == FILLER_DUMMY) |
Thomas Tsou | ccb73e1 | 2014-04-15 17:41:28 -0400 | [diff] [blame] | 216 | mStates[0].mRetrans = true; |
| 217 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 218 | /* Setup sockets */ |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 219 | mClockSocket = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 220 | cfg->bind_addr, cfg->base_port, |
| 221 | cfg->remote_addr, cfg->base_port + 100, |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 222 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
Pau Espin Pedrol | e7195ac | 2019-08-26 10:55:04 +0200 | [diff] [blame] | 223 | if (mClockSocket < 0) |
| 224 | return false; |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 225 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 226 | for (size_t i = 0; i < mChans; i++) { |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 227 | int rv; |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 228 | FillerType filler = cfg->filler; |
| 229 | c_srcport = cfg->base_port + 2 * i + 1; |
| 230 | c_dstport = cfg->base_port + 2 * i + 101; |
| 231 | d_srcport = cfg->base_port + 2 * i + 2; |
| 232 | d_dstport = cfg->base_port + 2 * i + 102; |
Thomas Tsou | e1ce925 | 2013-11-13 22:40:44 -0500 | [diff] [blame] | 233 | |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 234 | 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] | 235 | cfg->bind_addr, c_srcport, |
| 236 | cfg->remote_addr, c_dstport, |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 237 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 238 | if (rv < 0) |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 239 | return false; |
| 240 | |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 241 | mCtrlSockets[i].conn_bfd.cb = ctrl_sock_cb; |
| 242 | mCtrlSockets[i].conn_bfd.data = reinterpret_cast<void*>(i); |
| 243 | |
| 244 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 245 | mDataSockets[i] = osmo_sock_init2(AF_UNSPEC, SOCK_DGRAM, IPPROTO_UDP, |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 246 | cfg->bind_addr, d_srcport, |
| 247 | cfg->remote_addr, d_dstport, |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 248 | OSMO_SOCK_F_BIND | OSMO_SOCK_F_CONNECT); |
Eric | 1a26b4f | 2020-04-13 00:03:01 +0200 | [diff] [blame] | 249 | if (mDataSockets[i] < 0) |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 250 | return false; |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 251 | |
| 252 | if (i && filler == FILLER_DUMMY) |
| 253 | filler = FILLER_ZERO; |
| 254 | |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 255 | 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] | 256 | } |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 257 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 258 | /* Randomize the central clock */ |
| 259 | GSM::Time startTime(random() % gHyperframe, 0); |
| 260 | mRadioInterface->getClock()->set(startTime); |
| 261 | mTransmitDeadlineClock = startTime; |
| 262 | mLastClockUpdateTime = startTime; |
| 263 | mLatencyUpdateTime = startTime; |
| 264 | |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 265 | return true; |
| 266 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 267 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 268 | /* |
| 269 | * Start the transceiver |
| 270 | * |
| 271 | * Submit command(s) to the radio device to commence streaming samples and |
| 272 | * launch threads to handle sample I/O. Re-synchronize the transmit burst |
| 273 | * counters to the central radio clock here as well. |
| 274 | */ |
| 275 | bool Transceiver::start() |
| 276 | { |
| 277 | ScopedLock lock(mLock); |
| 278 | |
| 279 | if (mOn) { |
| 280 | LOG(ERR) << "Transceiver already running"; |
Ivan Kluchnikov | 194a9b1 | 2015-04-23 17:08:27 +0300 | [diff] [blame] | 281 | return true; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 282 | } |
| 283 | |
| 284 | LOG(NOTICE) << "Starting the transceiver"; |
| 285 | |
| 286 | GSM::Time time = mRadioInterface->getClock()->get(); |
| 287 | mTransmitDeadlineClock = time; |
| 288 | mLastClockUpdateTime = time; |
| 289 | mLatencyUpdateTime = time; |
| 290 | |
| 291 | if (!mRadioInterface->start()) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 292 | LOG(FATAL) << "Device failed to start"; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 293 | return false; |
| 294 | } |
| 295 | |
| 296 | /* Device is running - launch I/O threads */ |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 297 | mRxLowerLoopThread = new Thread(cfg->stack_size); |
| 298 | mTxLowerLoopThread = new Thread(cfg->stack_size); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 299 | mTxLowerLoopThread->start((void * (*)(void*)) |
| 300 | TxLowerLoopAdapter,(void*) this); |
| 301 | mRxLowerLoopThread->start((void * (*)(void*)) |
| 302 | RxLowerLoopAdapter,(void*) this); |
| 303 | |
| 304 | /* Launch uplink and downlink burst processing threads */ |
| 305 | for (size_t i = 0; i < mChans; i++) { |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 306 | TrxChanThParams *params = (TrxChanThParams *)malloc(sizeof(struct TrxChanThParams)); |
| 307 | params->trx = this; |
| 308 | params->num = i; |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 309 | mRxServiceLoopThreads[i] = new Thread(cfg->stack_size); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 310 | mRxServiceLoopThreads[i]->start((void * (*)(void*)) |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 311 | RxUpperLoopAdapter, (void*) params); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 312 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 313 | params = (TrxChanThParams *)malloc(sizeof(struct TrxChanThParams)); |
| 314 | params->trx = this; |
| 315 | params->num = i; |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 316 | mTxPriorityQueueServiceLoopThreads[i] = new Thread(cfg->stack_size); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 317 | mTxPriorityQueueServiceLoopThreads[i]->start((void * (*)(void*)) |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 318 | TxUpperLoopAdapter, (void*) params); |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 319 | } |
| 320 | |
Pau Espin Pedrol | 934da48 | 2017-07-04 16:25:20 +0200 | [diff] [blame] | 321 | mForceClockInterface = true; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 322 | mOn = true; |
| 323 | return true; |
| 324 | } |
| 325 | |
| 326 | /* |
| 327 | * Stop the transceiver |
| 328 | * |
| 329 | * Perform stopping by disabling receive streaming and issuing cancellation |
| 330 | * requests to running threads. Most threads will timeout and terminate once |
| 331 | * device is disabled, but the transmit loop may block waiting on the central |
| 332 | * UMTS clock. Explicitly signal the clock to make sure that the transmit loop |
| 333 | * makes it to the thread cancellation point. |
| 334 | */ |
| 335 | void Transceiver::stop() |
| 336 | { |
| 337 | ScopedLock lock(mLock); |
| 338 | |
| 339 | if (!mOn) |
| 340 | return; |
| 341 | |
| 342 | LOG(NOTICE) << "Stopping the transceiver"; |
| 343 | mTxLowerLoopThread->cancel(); |
| 344 | mRxLowerLoopThread->cancel(); |
Tom Tsou | d67bd60 | 2017-06-15 15:35:02 -0700 | [diff] [blame] | 345 | mTxLowerLoopThread->join(); |
| 346 | mRxLowerLoopThread->join(); |
| 347 | delete mTxLowerLoopThread; |
| 348 | delete mRxLowerLoopThread; |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 349 | |
| 350 | for (size_t i = 0; i < mChans; i++) { |
| 351 | mRxServiceLoopThreads[i]->cancel(); |
| 352 | mTxPriorityQueueServiceLoopThreads[i]->cancel(); |
| 353 | } |
| 354 | |
| 355 | LOG(INFO) << "Stopping the device"; |
| 356 | mRadioInterface->stop(); |
| 357 | |
| 358 | for (size_t i = 0; i < mChans; i++) { |
| 359 | mRxServiceLoopThreads[i]->join(); |
| 360 | mTxPriorityQueueServiceLoopThreads[i]->join(); |
| 361 | delete mRxServiceLoopThreads[i]; |
| 362 | delete mTxPriorityQueueServiceLoopThreads[i]; |
| 363 | |
| 364 | mTxPriorityQueues[i].clear(); |
| 365 | } |
| 366 | |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 367 | mOn = false; |
| 368 | LOG(NOTICE) << "Transceiver stopped"; |
| 369 | } |
| 370 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 371 | void Transceiver::addRadioVector(size_t chan, BitVector &bits, |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 372 | int RSSI, GSM::Time &wTime) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 373 | { |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 374 | signalVector *burst; |
| 375 | radioVector *radio_burst; |
| 376 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 377 | if (chan >= mTxPriorityQueues.size()) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 378 | LOGCHAN(chan, DTRXDDL, FATAL) << "Invalid channel"; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 379 | return; |
| 380 | } |
| 381 | |
Thomas Tsou | 2d0c00b | 2013-11-14 15:28:23 -0500 | [diff] [blame] | 382 | if (wTime.TN() > 7) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 383 | LOGCHAN(chan, DTRXDDL, FATAL) << "Received burst with invalid slot " << wTime.TN(); |
Thomas Tsou | 2d0c00b | 2013-11-14 15:28:23 -0500 | [diff] [blame] | 384 | return; |
| 385 | } |
| 386 | |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 387 | /* Use the number of bits as the EDGE burst indicator */ |
| 388 | if (bits.size() == EDGE_BURST_NBITS) |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 389 | burst = modulateEdgeBurst(bits, cfg->tx_sps); |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 390 | else |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 391 | burst = modulateBurst(bits, 8 + (wTime.TN() % 4 == 0), cfg->tx_sps); |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 392 | |
Vadim Yanitskiy | 2a637a5 | 2021-01-26 23:55:22 +0100 | [diff] [blame] | 393 | scaleVector(*burst, txFullScale * pow(10, (double) -RSSI / 20)); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 394 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 395 | radio_burst = new radioVector(wTime, burst); |
| 396 | |
| 397 | mTxPriorityQueues[chan].write(radio_burst); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 398 | } |
| 399 | |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 400 | void Transceiver::updateFillerTable(size_t chan, radioVector *burst) |
| 401 | { |
| 402 | int TN, modFN; |
| 403 | TransceiverState *state = &mStates[chan]; |
| 404 | |
| 405 | TN = burst->getTime().TN(); |
| 406 | modFN = burst->getTime().FN() % state->fillerModulus[TN]; |
| 407 | |
| 408 | delete state->fillerTable[modFN][TN]; |
| 409 | state->fillerTable[modFN][TN] = burst->getVector(); |
| 410 | burst->setVector(NULL); |
| 411 | } |
| 412 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 413 | void Transceiver::pushRadioVector(GSM::Time &nowTime) |
| 414 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 415 | int TN, modFN; |
| 416 | radioVector *burst; |
| 417 | TransceiverState *state; |
| 418 | std::vector<signalVector *> bursts(mChans); |
| 419 | std::vector<bool> zeros(mChans); |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 420 | std::vector<bool> filler(mChans, true); |
Pau Espin Pedrol | 1d0c6fe | 2020-07-09 18:09:10 +0200 | [diff] [blame] | 421 | bool ratectr_changed; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 422 | |
Pau Espin Pedrol | 8b0c536 | 2020-07-09 17:39:20 +0200 | [diff] [blame] | 423 | TN = nowTime.TN(); |
| 424 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 425 | for (size_t i = 0; i < mChans; i ++) { |
| 426 | state = &mStates[i]; |
Pau Espin Pedrol | 1d0c6fe | 2020-07-09 18:09:10 +0200 | [diff] [blame] | 427 | ratectr_changed = false; |
| 428 | |
Pau Espin Pedrol | 7d8676a | 2020-08-26 14:30:46 +0200 | [diff] [blame] | 429 | zeros[i] = state->chanType[TN] == NONE || state->mMuted; |
Pau Espin Pedrol | 8b0c536 | 2020-07-09 17:39:20 +0200 | [diff] [blame] | 430 | |
| 431 | Mutex *mtx = mTxPriorityQueues[i].getMutex(); |
| 432 | mtx->lock(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 433 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 434 | while ((burst = mTxPriorityQueues[i].getStaleBurst(nowTime))) { |
Pau Espin Pedrol | c249ce2 | 2020-07-17 18:33:10 +0200 | [diff] [blame] | 435 | LOGCHAN(i, DTRXDDL, INFO) << "dumping STALE burst in TRX->SDR interface (" |
Pau Espin Pedrol | f37b0ad | 2018-04-25 18:01:27 +0200 | [diff] [blame] | 436 | << burst->getTime() <<" vs " << nowTime << "), retrans=" << state->mRetrans; |
Pau Espin Pedrol | 92ba59d | 2020-06-29 14:34:59 +0200 | [diff] [blame] | 437 | state->ctrs.tx_stale_bursts++; |
Pau Espin Pedrol | 1d0c6fe | 2020-07-09 18:09:10 +0200 | [diff] [blame] | 438 | ratectr_changed = true; |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 439 | if (state->mRetrans) |
| 440 | updateFillerTable(i, burst); |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 441 | delete burst; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 442 | } |
| 443 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 444 | if ((burst = mTxPriorityQueues[i].getCurrentBurst(nowTime))) { |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 445 | bursts[i] = burst->getVector(); |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 446 | |
| 447 | if (state->mRetrans) { |
| 448 | updateFillerTable(i, burst); |
| 449 | } else { |
| 450 | burst->setVector(NULL); |
| 451 | filler[i] = false; |
| 452 | } |
| 453 | |
Thomas Tsou | a2fe91a | 2013-11-13 22:48:11 -0500 | [diff] [blame] | 454 | delete burst; |
Pau Espin Pedrol | 8b0c536 | 2020-07-09 17:39:20 +0200 | [diff] [blame] | 455 | } else { |
| 456 | modFN = nowTime.FN() % state->fillerModulus[TN]; |
| 457 | bursts[i] = state->fillerTable[modFN][TN]; |
Pau Espin Pedrol | df67578 | 2020-07-17 14:09:28 +0200 | [diff] [blame] | 458 | if (i == 0 && state->mFiller == FILLER_ZERO) { |
Pau Espin Pedrol | c249ce2 | 2020-07-17 18:33:10 +0200 | [diff] [blame] | 459 | LOGCHAN(i, DTRXDDL, INFO) << "No Tx burst available for " << nowTime |
Pau Espin Pedrol | 1d0c6fe | 2020-07-09 18:09:10 +0200 | [diff] [blame] | 460 | << ", retrans=" << state->mRetrans; |
| 461 | state->ctrs.tx_unavailable_bursts++; |
| 462 | ratectr_changed = true; |
| 463 | } |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 464 | } |
Pau Espin Pedrol | 8b0c536 | 2020-07-09 17:39:20 +0200 | [diff] [blame] | 465 | |
| 466 | mtx->unlock(); |
| 467 | |
Pau Espin Pedrol | 1d0c6fe | 2020-07-09 18:09:10 +0200 | [diff] [blame] | 468 | if (ratectr_changed) |
Pau Espin Pedrol | 8b0c536 | 2020-07-09 17:39:20 +0200 | [diff] [blame] | 469 | dispatch_trx_rate_ctr_change(state, i); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 470 | } |
| 471 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 472 | mRadioInterface->driveTransmitRadio(bursts, zeros); |
| 473 | |
Thomas Tsou | 15d743e | 2014-01-25 02:34:03 -0500 | [diff] [blame] | 474 | for (size_t i = 0; i < mChans; i++) { |
| 475 | if (!filler[i]) |
| 476 | delete bursts[i]; |
| 477 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 478 | } |
| 479 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 480 | void Transceiver::setModulus(size_t timeslot, size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 481 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 482 | TransceiverState *state = &mStates[chan]; |
| 483 | |
| 484 | switch (state->chanType[timeslot]) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 485 | case NONE: |
| 486 | case I: |
| 487 | case II: |
| 488 | case III: |
| 489 | case FILL: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 490 | state->fillerModulus[timeslot] = 26; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 491 | break; |
| 492 | case IV: |
| 493 | case VI: |
| 494 | case V: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 495 | state->fillerModulus[timeslot] = 51; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 496 | break; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 497 | //case V: |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 498 | case VII: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 499 | state->fillerModulus[timeslot] = 102; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 500 | break; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 501 | case XIII: |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 502 | state->fillerModulus[timeslot] = 52; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 503 | break; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 504 | default: |
| 505 | break; |
| 506 | } |
| 507 | } |
| 508 | |
| 509 | |
Alexander Chemeris | f9e78be | 2017-03-17 15:00:34 -0700 | [diff] [blame] | 510 | CorrType Transceiver::expectedCorrType(GSM::Time currTime, |
| 511 | size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 512 | { |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 513 | 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 }; |
| 514 | 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, |
| 515 | 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 }; |
| 516 | 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, |
| 517 | 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] | 518 | TransceiverState *state = &mStates[chan]; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 519 | unsigned burstTN = currTime.TN(); |
| 520 | unsigned burstFN = currTime.FN(); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 521 | int subch; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 522 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 523 | switch (state->chanType[burstTN]) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 524 | case NONE: |
| 525 | return OFF; |
| 526 | break; |
| 527 | case FILL: |
| 528 | return IDLE; |
| 529 | break; |
| 530 | case I: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 531 | // TODO: Are we expecting RACH on an IDLE frame? |
| 532 | /* if (burstFN % 26 == 25) |
| 533 | return IDLE;*/ |
| 534 | if (mHandover[burstTN][0]) |
| 535 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 536 | return TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 537 | break; |
| 538 | case II: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 539 | subch = tchh_subslot[burstFN % 26]; |
| 540 | if (subch == 1) |
| 541 | return IDLE; |
| 542 | if (mHandover[burstTN][0]) |
| 543 | return RACH; |
ttsou | 2064297 | 2013-03-27 22:00:25 +0000 | [diff] [blame] | 544 | return TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 545 | break; |
| 546 | case III: |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 547 | subch = tchh_subslot[burstFN % 26]; |
| 548 | if (mHandover[burstTN][subch]) |
| 549 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 550 | return TSC; |
| 551 | break; |
| 552 | case IV: |
| 553 | case VI: |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 554 | return cfg->ext_rach ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 555 | break; |
| 556 | case V: { |
| 557 | int mod51 = burstFN % 51; |
| 558 | if ((mod51 <= 36) && (mod51 >= 14)) |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 559 | return cfg->ext_rach ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 560 | else if ((mod51 == 4) || (mod51 == 5)) |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 561 | return cfg->ext_rach ? EXT_RACH : RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 562 | else if ((mod51 == 45) || (mod51 == 46)) |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 563 | return cfg->ext_rach ? EXT_RACH : RACH; |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 564 | else if (mHandover[burstTN][sdcch4_subslot[burstFN % 102]]) |
| 565 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 566 | else |
| 567 | return TSC; |
| 568 | break; |
| 569 | } |
| 570 | case VII: |
| 571 | if ((burstFN % 51 <= 14) && (burstFN % 51 >= 12)) |
| 572 | return IDLE; |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 573 | else if (mHandover[burstTN][sdcch8_subslot[burstFN % 102]]) |
| 574 | return RACH; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 575 | else |
| 576 | return TSC; |
| 577 | break; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 578 | case XIII: { |
| 579 | int mod52 = burstFN % 52; |
| 580 | if ((mod52 == 12) || (mod52 == 38)) |
Vadim Yanitskiy | 00ddcfa | 2022-10-26 04:11:28 +0700 | [diff] [blame] | 581 | return RACH; /* RACH is always 8-bit on PTCCH/U */ |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 582 | else if ((mod52 == 25) || (mod52 == 51)) |
| 583 | return IDLE; |
Pau Espin Pedrol | bfc1d0b | 2019-08-26 16:34:45 +0200 | [diff] [blame] | 584 | else /* Enable 8-PSK burst detection if EDGE is enabled */ |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 585 | return cfg->egprs ? EDGE : TSC; |
ttsou | fc40a84 | 2013-06-09 22:38:18 +0000 | [diff] [blame] | 586 | break; |
| 587 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 588 | case LOOPBACK: |
| 589 | if ((burstFN % 51 <= 50) && (burstFN % 51 >=48)) |
| 590 | return IDLE; |
| 591 | else |
| 592 | return TSC; |
| 593 | break; |
| 594 | default: |
| 595 | return OFF; |
| 596 | break; |
| 597 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 598 | } |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 599 | |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 600 | void writeToFile(radioVector *radio_burst, size_t chan) |
| 601 | { |
| 602 | GSM::Time time = radio_burst->getTime(); |
| 603 | std::ostringstream fname; |
| 604 | fname << chan << "_" << time.FN() << "_" << time.TN() << ".fc"; |
| 605 | std::ofstream outfile (fname.str().c_str(), std::ofstream::binary); |
| 606 | outfile.write((char*)radio_burst->getVector()->begin(), radio_burst->getVector()->size() * 2 * sizeof(float)); |
| 607 | outfile.close(); |
| 608 | } |
| 609 | |
Pau Espin Pedrol | e91544d | 2020-10-13 17:03:37 +0200 | [diff] [blame] | 610 | double Transceiver::rssiOffset(size_t chan) |
| 611 | { |
| 612 | if (cfg->force_rssi_offset) |
| 613 | return cfg->rssi_offset; |
| 614 | return mRadioInterface->rssiOffset(chan) + cfg->rssi_offset; |
| 615 | } |
| 616 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 617 | /* |
| 618 | * Pull bursts from the FIFO and handle according to the slot |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 619 | * and burst correlation type. Equalzation is currently disabled. |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 620 | * returns 0 on success (bi filled), negative on error (bi content undefined): |
| 621 | * -ENOENT: timeslot is off (fn and tn in bi are filled), |
| 622 | * -EIO: read error |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 623 | */ |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 624 | int Transceiver::pullRadioVector(size_t chan, struct trx_ul_burst_ind *bi) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 625 | { |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 626 | int rc; |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 627 | struct estim_burst_params ebp; |
| 628 | float max = -1.0, avg = 0.0; |
Pau Espin Pedrol | 9bb24a1 | 2019-07-03 15:43:03 +0200 | [diff] [blame] | 629 | unsigned max_toa; |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 630 | int max_i = -1; |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 631 | signalVector *burst; |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 632 | GSM::Time burstTime; |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 633 | SoftVector *rxBurst; |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 634 | TransceiverState *state = &mStates[chan]; |
Pau Espin Pedrol | 1d165a0 | 2020-07-27 11:52:42 +0200 | [diff] [blame] | 635 | bool ctr_changed = false; |
Pau Espin Pedrol | e91544d | 2020-10-13 17:03:37 +0200 | [diff] [blame] | 636 | double rssi_offset; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 637 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 638 | /* Blocking FIFO read */ |
| 639 | radioVector *radio_burst = mReceiveFIFO[chan]->read(); |
Pau Espin Pedrol | 94c5241 | 2019-09-06 13:48:35 +0200 | [diff] [blame] | 640 | if (!radio_burst) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 641 | LOGCHAN(chan, DTRXDUL, ERROR) << "ReceiveFIFO->read() returned no burst"; |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 642 | return -EIO; |
Pau Espin Pedrol | 94c5241 | 2019-09-06 13:48:35 +0200 | [diff] [blame] | 643 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 644 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 645 | /* Set time and determine correlation type */ |
Eric | c27fe60 | 2021-05-05 17:33:18 +0200 | [diff] [blame] | 646 | burstTime = radio_burst->getTime() + cfg->ul_fn_offset; |
Pau Espin Pedrol | 07ddce5 | 2019-07-01 16:36:10 +0200 | [diff] [blame] | 647 | CorrType type = expectedCorrType(burstTime, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 648 | |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 649 | /* Initialize struct bi */ |
| 650 | bi->nbits = 0; |
| 651 | bi->fn = burstTime.FN(); |
| 652 | bi->tn = burstTime.TN(); |
| 653 | bi->rssi = 0.0; |
| 654 | bi->toa = 0.0; |
| 655 | bi->noise = 0.0; |
| 656 | bi->idle = false; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 657 | bi->modulation = MODULATION_GMSK; |
| 658 | bi->tss = 0; /* TODO: we only support tss 0 right now */ |
| 659 | bi->tsc = 0; |
| 660 | bi->ci = 0.0; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 661 | |
Pau Espin Pedrol | 0d56d75 | 2019-09-09 10:20:58 +0200 | [diff] [blame] | 662 | /* Debug: dump bursts to disk */ |
| 663 | /* bits 0-7 - chan 0 timeslots |
| 664 | * bits 8-15 - chan 1 timeslots */ |
| 665 | if (mWriteBurstToDiskMask & ((1<<bi->tn) << (8*chan))) |
| 666 | writeToFile(radio_burst, chan); |
| 667 | |
| 668 | /* No processing if the timeslot is off. |
| 669 | * Not even power level or noise calculation. */ |
| 670 | if (type == OFF) { |
| 671 | delete radio_burst; |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 672 | return -ENOENT; |
Pau Espin Pedrol | 0d56d75 | 2019-09-09 10:20:58 +0200 | [diff] [blame] | 673 | } |
| 674 | |
Pau Espin Pedrol | 7d8676a | 2020-08-26 14:30:46 +0200 | [diff] [blame] | 675 | /* If TRX RF is locked/muted by BTS, send idle burst indications */ |
| 676 | if (state->mMuted) |
| 677 | goto ret_idle; |
| 678 | |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 679 | /* Select the diversity channel with highest energy */ |
| 680 | for (size_t i = 0; i < radio_burst->chans(); i++) { |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 681 | float pow = energyDetect(*radio_burst->getVector(i), 20 * cfg->rx_sps); |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 682 | if (pow > max) { |
| 683 | max = pow; |
| 684 | max_i = i; |
| 685 | } |
| 686 | avg += pow; |
| 687 | } |
| 688 | |
| 689 | if (max_i < 0) { |
Pau Espin Pedrol | 1d165a0 | 2020-07-27 11:52:42 +0200 | [diff] [blame] | 690 | LOGCHAN(chan, DTRXDUL, INFO) << "Received empty burst"; |
| 691 | state->ctrs.rx_empty_burst++; |
| 692 | ctr_changed = true; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 693 | goto ret_idle; |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 694 | } |
| 695 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 696 | /* Average noise on diversity paths and update global levels */ |
Thomas Tsou | e90a42b | 2013-11-13 23:38:09 -0500 | [diff] [blame] | 697 | burst = radio_burst->getVector(max_i); |
Thomas Tsou | ef25dba | 2013-11-14 15:31:24 -0500 | [diff] [blame] | 698 | avg = sqrt(avg / radio_burst->chans()); |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 699 | |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 700 | if (type == IDLE) { |
| 701 | /* Update noise levels */ |
| 702 | state->mNoises.insert(avg); |
| 703 | state->mNoiseLev = state->mNoises.avg(); |
Pau Espin Pedrol | be9cd66 | 2019-07-03 15:00:56 +0200 | [diff] [blame] | 704 | } |
Alexander Chemeris | 2b54210 | 2015-06-08 22:46:38 -0400 | [diff] [blame] | 705 | |
Pau Espin Pedrol | e91544d | 2020-10-13 17:03:37 +0200 | [diff] [blame] | 706 | rssi_offset = rssiOffset(chan); |
| 707 | bi->rssi = 20.0 * log10(rxFullScale / avg) + rssi_offset; |
| 708 | bi->noise = 20.0 * log10(rxFullScale / state->mNoiseLev) + rssi_offset; |
Pau Espin Pedrol | be9cd66 | 2019-07-03 15:00:56 +0200 | [diff] [blame] | 709 | |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 710 | if (type == IDLE) |
| 711 | goto ret_idle; |
Thomas Tsou | fa3a787 | 2013-10-17 21:23:34 -0400 | [diff] [blame] | 712 | |
Pau Espin Pedrol | 9bb24a1 | 2019-07-03 15:43:03 +0200 | [diff] [blame] | 713 | max_toa = (type == RACH || type == EXT_RACH) ? |
| 714 | mMaxExpectedDelayAB : mMaxExpectedDelayNB; |
Vadim Yanitskiy | a8b3565 | 2018-10-22 02:52:18 +0200 | [diff] [blame] | 715 | |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 716 | /* Detect normal or RACH bursts */ |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 717 | rc = detectAnyBurst(*burst, mTSC, BURST_THRESH, cfg->rx_sps, type, max_toa, &ebp); |
Pau Espin Pedrol | d6dbb1b | 2019-07-03 15:23:56 +0200 | [diff] [blame] | 718 | if (rc <= 0) { |
Pau Espin Pedrol | 1d165a0 | 2020-07-27 11:52:42 +0200 | [diff] [blame] | 719 | if (rc == -SIGERR_CLIP) { |
| 720 | LOGCHAN(chan, DTRXDUL, INFO) << "Clipping detected on received RACH or Normal Burst"; |
| 721 | state->ctrs.rx_clipping++; |
| 722 | ctr_changed = true; |
| 723 | } else if (rc != SIGERR_NONE) { |
| 724 | LOGCHAN(chan, DTRXDUL, INFO) << "Unhandled RACH or Normal Burst detection error"; |
| 725 | state->ctrs.rx_no_burst_detected++; |
| 726 | ctr_changed = true; |
| 727 | } |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 728 | goto ret_idle; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 729 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 730 | |
Sylvain Munaut | ad202d7 | 2021-02-04 20:37:01 +0100 | [diff] [blame] | 731 | rxBurst = demodAnyBurst(*burst, (CorrType) rc, cfg->rx_sps, &ebp); |
Pau Espin Pedrol | 7ee2d10 | 2019-07-04 13:02:12 +0200 | [diff] [blame] | 732 | bi->toa = ebp.toa; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 733 | bi->tsc = ebp.tsc; |
| 734 | bi->ci = ebp.ci; |
Thomas Tsou | ef25dba | 2013-11-14 15:31:24 -0500 | [diff] [blame] | 735 | |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 736 | /* EDGE demodulator returns 444 (gSlotLen * 3) bits */ |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 737 | if (rxBurst->size() == EDGE_BURST_NBITS) { |
| 738 | bi->modulation = MODULATION_8PSK; |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 739 | bi->nbits = EDGE_BURST_NBITS; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 740 | } else { /* size() here is actually gSlotLen + 8, due to guard periods */ |
| 741 | bi->modulation = MODULATION_GMSK; |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 742 | bi->nbits = gSlotLen; |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 743 | } |
Pau Espin Pedrol | 0e67cf2 | 2019-07-02 14:59:47 +0200 | [diff] [blame] | 744 | |
Pau Espin Pedrol | 25ae190 | 2019-07-01 16:40:44 +0200 | [diff] [blame] | 745 | // Convert -1..+1 soft bits to 0..1 soft bits |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 746 | vectorSlicer(bi->rx_burst, rxBurst->begin(), bi->nbits); |
Pau Espin Pedrol | 25ae190 | 2019-07-01 16:40:44 +0200 | [diff] [blame] | 747 | |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 748 | delete rxBurst; |
Thomas Tsou | 30421a7 | 2013-11-13 23:14:48 -0500 | [diff] [blame] | 749 | delete radio_burst; |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 750 | return 0; |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 751 | |
| 752 | ret_idle: |
Pau Espin Pedrol | 1d165a0 | 2020-07-27 11:52:42 +0200 | [diff] [blame] | 753 | if (ctr_changed) |
| 754 | dispatch_trx_rate_ctr_change(state, chan); |
Pau Espin Pedrol | 95c8318 | 2019-07-03 16:01:12 +0200 | [diff] [blame] | 755 | bi->idle = true; |
| 756 | delete radio_burst; |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 757 | return 0; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 758 | } |
| 759 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 760 | void Transceiver::reset() |
| 761 | { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 762 | for (size_t i = 0; i < mTxPriorityQueues.size(); i++) |
| 763 | mTxPriorityQueues[i].clear(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 764 | } |
| 765 | |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 766 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 767 | /** |
| 768 | * Matches a buffer with a command. |
| 769 | * @param buf a buffer to look command in |
| 770 | * @param cmd a command to look in buffer |
| 771 | * @param params pointer to arguments, or NULL |
| 772 | * @return true if command matches, otherwise false |
| 773 | */ |
| 774 | static bool match_cmd(char *buf, |
| 775 | const char *cmd, char **params) |
| 776 | { |
| 777 | size_t cmd_len = strlen(cmd); |
| 778 | |
| 779 | /* Check a command itself */ |
| 780 | if (strncmp(buf, cmd, cmd_len)) |
| 781 | return false; |
| 782 | |
| 783 | /* A command has arguments */ |
| 784 | if (params != NULL) { |
| 785 | /* Make sure there is a space */ |
| 786 | if (buf[cmd_len] != ' ') |
| 787 | return false; |
| 788 | |
| 789 | /* Update external pointer */ |
| 790 | *params = buf + cmd_len + 1; |
| 791 | } |
| 792 | |
| 793 | return true; |
| 794 | } |
| 795 | |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 796 | void Transceiver::ctrl_sock_send(ctrl_msg& m, int chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 797 | { |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 798 | ctrl_sock_state& s = mCtrlSockets[chan]; |
| 799 | struct osmo_fd *conn_bfd = &s.conn_bfd; |
| 800 | |
| 801 | s.txmsgqueue.push_back(m); |
Harald Welte | 94def47 | 2020-10-19 12:28:26 +0200 | [diff] [blame] | 802 | osmo_fd_write_enable(conn_bfd); |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 803 | } |
| 804 | |
| 805 | int Transceiver::ctrl_sock_write(int chan) |
| 806 | { |
| 807 | int rc; |
| 808 | ctrl_sock_state& s = mCtrlSockets[chan]; |
| 809 | |
| 810 | if (s.conn_bfd.fd < 0) { |
| 811 | return -EIO; |
| 812 | } |
| 813 | |
| 814 | while (s.txmsgqueue.size()) { |
| 815 | const ctrl_msg m = s.txmsgqueue.front(); |
| 816 | |
Harald Welte | 94def47 | 2020-10-19 12:28:26 +0200 | [diff] [blame] | 817 | osmo_fd_write_disable(&s.conn_bfd); |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 818 | |
| 819 | /* try to send it over the socket */ |
| 820 | rc = write(s.conn_bfd.fd, m.data, strlen(m.data) + 1); |
| 821 | if (rc == 0) |
| 822 | goto close; |
| 823 | if (rc < 0) { |
| 824 | if (errno == EAGAIN) { |
Harald Welte | 94def47 | 2020-10-19 12:28:26 +0200 | [diff] [blame] | 825 | osmo_fd_write_enable(&s.conn_bfd); |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 826 | break; |
| 827 | } |
| 828 | goto close; |
| 829 | } |
| 830 | |
| 831 | s.txmsgqueue.pop_front(); |
| 832 | } |
| 833 | return 0; |
| 834 | |
| 835 | close: |
| 836 | LOGCHAN(chan, DTRXCTRL, NOTICE) << "mCtrlSockets write(" << s.conn_bfd.fd << ") failed: " << rc; |
| 837 | return -1; |
| 838 | } |
| 839 | |
| 840 | int Transceiver::ctrl_sock_handle_rx(int chan) |
| 841 | { |
| 842 | ctrl_msg cmd_received; |
| 843 | ctrl_msg cmd_to_send; |
| 844 | char *buffer = cmd_received.data; |
| 845 | char *response = cmd_to_send.data; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 846 | char *command, *params; |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 847 | int msgLen; |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 848 | ctrl_sock_state& s = mCtrlSockets[chan]; |
Thomas Tsou | d647ec5 | 2013-10-29 15:17:34 -0400 | [diff] [blame] | 849 | |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 850 | /* Attempt to read from control socket */ |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 851 | msgLen = read(s.conn_bfd.fd, buffer, sizeof(cmd_received.data)-1); |
| 852 | if (msgLen < 0 && errno == EAGAIN) |
| 853 | return 0; /* Try again later */ |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 854 | if (msgLen <= 0) { |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 855 | LOGCHAN(chan, DTRXCTRL, NOTICE) << "mCtrlSockets read(" << s.conn_bfd.fd << ") failed: " << msgLen; |
| 856 | return -EIO; |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 857 | } |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 858 | |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 859 | |
Vadim Yanitskiy | 4d9b59c | 2018-03-09 02:54:45 +0700 | [diff] [blame] | 860 | /* Zero-terminate received string */ |
| 861 | buffer[msgLen] = '\0'; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 862 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 863 | /* Verify a command signature */ |
| 864 | if (strncmp(buffer, "CMD ", 4)) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 865 | LOGCHAN(chan, DTRXCTRL, NOTICE) << "bogus message on control interface"; |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 866 | return -EIO; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 867 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 868 | |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 869 | /* Set command pointer */ |
| 870 | command = buffer + 4; |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 871 | LOGCHAN(chan, DTRXCTRL, INFO) << "command is '" << command << "'"; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 872 | |
| 873 | if (match_cmd(command, "POWEROFF", NULL)) { |
Tom Tsou | eb54bdd | 2014-11-25 16:06:32 -0800 | [diff] [blame] | 874 | stop(); |
| 875 | sprintf(response,"RSP POWEROFF 0"); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 876 | } else if (match_cmd(command, "POWERON", NULL)) { |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 877 | if (!start()) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 878 | sprintf(response,"RSP POWERON 1"); |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 879 | } else { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 880 | sprintf(response,"RSP POWERON 0"); |
Alexander Chemeris | 5a06806 | 2015-06-20 01:38:47 +0300 | [diff] [blame] | 881 | for (int i = 0; i < 8; i++) { |
| 882 | for (int j = 0; j < 8; j++) |
| 883 | mHandover[i][j] = false; |
| 884 | } |
Tom Tsou | 365bc38 | 2016-10-19 15:26:04 -0700 | [diff] [blame] | 885 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 886 | } else if (match_cmd(command, "HANDOVER", ¶ms)) { |
Vadim Yanitskiy | c0c6d70 | 2018-03-09 05:08:23 +0700 | [diff] [blame] | 887 | unsigned ts = 0, ss = 0; |
| 888 | sscanf(params, "%u %u", &ts, &ss); |
| 889 | if (ts > 7 || ss > 7) { |
Pau Espin Pedrol | 0fafe03 | 2019-11-27 13:17:59 +0100 | [diff] [blame] | 890 | sprintf(response, "RSP HANDOVER 1 %u %u", ts, ss); |
Vadim Yanitskiy | c0c6d70 | 2018-03-09 05:08:23 +0700 | [diff] [blame] | 891 | } else { |
| 892 | mHandover[ts][ss] = true; |
| 893 | sprintf(response, "RSP HANDOVER 0 %u %u", ts, ss); |
| 894 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 895 | } else if (match_cmd(command, "NOHANDOVER", ¶ms)) { |
Vadim Yanitskiy | c0c6d70 | 2018-03-09 05:08:23 +0700 | [diff] [blame] | 896 | unsigned ts = 0, ss = 0; |
| 897 | sscanf(params, "%u %u", &ts, &ss); |
| 898 | if (ts > 7 || ss > 7) { |
| 899 | sprintf(response, "RSP NOHANDOVER 1 %u %u", ts, ss); |
| 900 | } else { |
| 901 | mHandover[ts][ss] = false; |
| 902 | sprintf(response, "RSP NOHANDOVER 0 %u %u", ts, ss); |
| 903 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 904 | } else if (match_cmd(command, "SETMAXDLY", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 905 | //set expected maximum time-of-arrival |
| 906 | int maxDelay; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 907 | sscanf(params, "%d", &maxDelay); |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 908 | mMaxExpectedDelayAB = maxDelay; // 1 GSM symbol is approx. 1 km |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 909 | sprintf(response,"RSP SETMAXDLY 0 %d",maxDelay); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 910 | } else if (match_cmd(command, "SETMAXDLYNB", ¶ms)) { |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 911 | //set expected maximum time-of-arrival |
| 912 | int maxDelay; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 913 | sscanf(params, "%d", &maxDelay); |
Alexander Chemeris | 78d1fc9 | 2016-03-19 21:16:22 +0300 | [diff] [blame] | 914 | mMaxExpectedDelayNB = maxDelay; // 1 GSM symbol is approx. 1 km |
| 915 | sprintf(response,"RSP SETMAXDLYNB 0 %d",maxDelay); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 916 | } else if (match_cmd(command, "SETRXGAIN", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 917 | //set expected maximum time-of-arrival |
| 918 | int newGain; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 919 | sscanf(params, "%d", &newGain); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 920 | newGain = mRadioInterface->setRxGain(newGain, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 921 | sprintf(response,"RSP SETRXGAIN 0 %d",newGain); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 922 | } else if (match_cmd(command, "NOISELEV", NULL)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 923 | if (mOn) { |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 924 | float lev = mStates[chan].mNoiseLev; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 925 | sprintf(response,"RSP NOISELEV 0 %d", |
Thomas Tsou | a0179e3 | 2013-11-14 15:52:04 -0500 | [diff] [blame] | 926 | (int) round(20.0 * log10(rxFullScale / lev))); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 927 | } |
| 928 | else { |
Pau Espin Pedrol | 1b3a888 | 2020-05-29 16:15:18 +0200 | [diff] [blame] | 929 | sprintf(response,"RSP NOISELEV 1 0"); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 930 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 931 | } else if (match_cmd(command, "SETPOWER", ¶ms)) { |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 932 | int power; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 933 | sscanf(params, "%d", &power); |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 934 | power = mRadioInterface->setPowerAttenuation(power, chan); |
| 935 | mStates[chan].mPower = power; |
| 936 | sprintf(response, "RSP SETPOWER 0 %d", power); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 937 | } else if (match_cmd(command, "ADJPOWER", ¶ms)) { |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 938 | int power, step; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 939 | sscanf(params, "%d", &step); |
Tom Tsou | a4d1a41 | 2014-11-25 15:46:56 -0800 | [diff] [blame] | 940 | power = mStates[chan].mPower + step; |
| 941 | power = mRadioInterface->setPowerAttenuation(power, chan); |
| 942 | mStates[chan].mPower = power; |
| 943 | sprintf(response, "RSP ADJPOWER 0 %d", power); |
Pau Espin Pedrol | 0e09e7c | 2020-05-29 16:39:07 +0200 | [diff] [blame] | 944 | } else if (match_cmd(command, "NOMTXPOWER", NULL)) { |
| 945 | int power = mRadioInterface->getNominalTxPower(chan); |
Pau Espin Pedrol | 405f17a | 2020-06-19 14:48:35 +0200 | [diff] [blame] | 946 | sprintf(response, "RSP NOMTXPOWER 0 %d", power); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 947 | } else if (match_cmd(command, "RXTUNE", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 948 | // tune receiver |
| 949 | int freqKhz; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 950 | sscanf(params, "%d", &freqKhz); |
Vadim Yanitskiy | 3b8f7c4 | 2018-08-23 13:41:06 +0700 | [diff] [blame] | 951 | mRxFreq = (freqKhz + cfg->freq_offset_khz) * 1e3; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 952 | if (!mRadioInterface->tuneRx(mRxFreq, chan)) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 953 | LOGCHAN(chan, DTRXCTRL, FATAL) << "RX failed to tune"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 954 | sprintf(response,"RSP RXTUNE 1 %d",freqKhz); |
| 955 | } |
| 956 | else |
| 957 | sprintf(response,"RSP RXTUNE 0 %d",freqKhz); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 958 | } else if (match_cmd(command, "TXTUNE", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 959 | // tune txmtr |
| 960 | int freqKhz; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 961 | sscanf(params, "%d", &freqKhz); |
Vadim Yanitskiy | 3b8f7c4 | 2018-08-23 13:41:06 +0700 | [diff] [blame] | 962 | mTxFreq = (freqKhz + cfg->freq_offset_khz) * 1e3; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 963 | if (!mRadioInterface->tuneTx(mTxFreq, chan)) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 964 | LOGCHAN(chan, DTRXCTRL, FATAL) << "TX failed to tune"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 965 | sprintf(response,"RSP TXTUNE 1 %d",freqKhz); |
| 966 | } |
| 967 | else |
| 968 | sprintf(response,"RSP TXTUNE 0 %d",freqKhz); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 969 | } else if (match_cmd(command, "SETTSC", ¶ms)) { |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 970 | // set TSC |
Thomas Tsou | 3f32ab5 | 2013-11-15 16:32:54 -0500 | [diff] [blame] | 971 | unsigned TSC; |
Vadim Yanitskiy | 8c6c5d2 | 2018-03-09 05:01:21 +0700 | [diff] [blame] | 972 | sscanf(params, "%u", &TSC); |
Tom Tsou | 6031734 | 2017-03-30 19:36:41 -0700 | [diff] [blame] | 973 | if (TSC > 7) { |
Thomas Tsou | d3fccea | 2013-11-15 14:22:53 -0500 | [diff] [blame] | 974 | sprintf(response, "RSP SETTSC 1 %d", TSC); |
Tom Tsou | 6031734 | 2017-03-30 19:36:41 -0700 | [diff] [blame] | 975 | } else { |
Pau Espin Pedrol | 441d82a | 2018-12-04 16:37:24 +0100 | [diff] [blame] | 976 | LOGC(DTRXCTRL, NOTICE) << "Changing TSC from " << mTSC << " to " << TSC; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 977 | mTSC = TSC; |
Thomas Tsou | 83e0689 | 2013-08-20 16:10:01 -0400 | [diff] [blame] | 978 | sprintf(response,"RSP SETTSC 0 %d", TSC); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 979 | } |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 980 | } else if (match_cmd(command, "SETSLOT", ¶ms)) { |
Alexander Chemeris | 1fe5282 | 2015-05-20 12:02:29 -0700 | [diff] [blame] | 981 | // set slot type |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 982 | int corrCode; |
| 983 | int timeslot; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 984 | sscanf(params, "%d %d", ×lot, &corrCode); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 985 | if ((timeslot < 0) || (timeslot > 7)) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 986 | LOGCHAN(chan, DTRXCTRL, NOTICE) << "bogus message on control interface"; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 987 | sprintf(response,"RSP SETSLOT 1 %d %d",timeslot,corrCode); |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 988 | return 0; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 989 | } |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 990 | mStates[chan].chanType[timeslot] = (ChannelCombination) corrCode; |
| 991 | setModulus(timeslot, chan); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 992 | sprintf(response,"RSP SETSLOT 0 %d %d",timeslot,corrCode); |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 993 | } else if (match_cmd(command, "SETFORMAT", ¶ms)) { |
| 994 | // set TRXD protocol version |
| 995 | unsigned version_recv; |
| 996 | sscanf(params, "%u", &version_recv); |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 997 | LOGCHAN(chan, DTRXCTRL, INFO) << "BTS requests TRXD version switch: " << version_recv; |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 998 | if (version_recv > TRX_DATA_FORMAT_VER) { |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 999 | LOGCHAN(chan, DTRXCTRL, INFO) << "rejecting TRXD version " << version_recv |
Vadim Yanitskiy | b6f238c | 2021-05-27 23:35:21 +0200 | [diff] [blame] | 1000 | << " in favor of " << TRX_DATA_FORMAT_VER; |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 1001 | sprintf(response, "RSP SETFORMAT %u %u", TRX_DATA_FORMAT_VER, version_recv); |
| 1002 | } else { |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 1003 | LOGCHAN(chan, DTRXCTRL, NOTICE) << "switching to TRXD version " << version_recv; |
| 1004 | mVersionTRXD[chan] = version_recv; |
Pau Espin Pedrol | 13c8109 | 2019-07-03 16:17:06 +0200 | [diff] [blame] | 1005 | sprintf(response, "RSP SETFORMAT %u %u", version_recv, version_recv); |
| 1006 | } |
Pau Espin Pedrol | 7d8676a | 2020-08-26 14:30:46 +0200 | [diff] [blame] | 1007 | } else if (match_cmd(command, "RFMUTE", ¶ms)) { |
| 1008 | // (Un)mute RF TX and RX |
| 1009 | unsigned mute; |
| 1010 | sscanf(params, "%u", &mute); |
| 1011 | mStates[chan].mMuted = mute ? true : false; |
| 1012 | sprintf(response, "RSP RFMUTE 0 %u", mute); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 1013 | } else if (match_cmd(command, "_SETBURSTTODISKMASK", ¶ms)) { |
Martin Hauke | 066fd04 | 2019-10-13 19:08:00 +0200 | [diff] [blame] | 1014 | // debug command! may change or disappear without notice |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 1015 | // set a mask which bursts to dump to disk |
| 1016 | int mask; |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 1017 | sscanf(params, "%d", &mask); |
Alexander Chemeris | e692ce9 | 2015-06-12 00:15:31 -0400 | [diff] [blame] | 1018 | mWriteBurstToDiskMask = mask; |
| 1019 | sprintf(response,"RSP _SETBURSTTODISKMASK 0 %d",mask); |
Vadim Yanitskiy | a62fcf7 | 2018-03-09 03:24:08 +0700 | [diff] [blame] | 1020 | } else { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1021 | LOGCHAN(chan, DTRXCTRL, NOTICE) << "bogus command " << command << " on control interface."; |
Alexander Chemeris | 4438a9f | 2013-04-08 00:14:08 +0200 | [diff] [blame] | 1022 | sprintf(response,"RSP ERR 1"); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1023 | } |
| 1024 | |
Pau Espin Pedrol | fc73c07 | 2019-05-03 19:40:00 +0200 | [diff] [blame] | 1025 | LOGCHAN(chan, DTRXCTRL, INFO) << "response is '" << response << "'"; |
Eric | a7143bf | 2020-04-08 01:39:17 +0200 | [diff] [blame] | 1026 | transceiver->ctrl_sock_send(cmd_to_send, chan); |
| 1027 | return 0; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1028 | } |
| 1029 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1030 | bool Transceiver::driveTxPriorityQueue(size_t chan) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1031 | { |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1032 | int msgLen; |
Tom Tsou | e887108 | 2016-07-01 02:46:04 -0700 | [diff] [blame] | 1033 | int burstLen; |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 1034 | struct trxd_hdr_v01_dl *dl; |
| 1035 | char buffer[sizeof(*dl) + EDGE_BURST_NBITS]; |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 1036 | uint32_t fn; |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 1037 | uint8_t tn; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1038 | |
| 1039 | // check data socket |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1040 | msgLen = read(mDataSockets[chan], buffer, sizeof(buffer)); |
| 1041 | if (msgLen <= 0) { |
Eric | 1a26b4f | 2020-04-13 00:03:01 +0200 | [diff] [blame] | 1042 | LOGCHAN(chan, DTRXDDL, NOTICE) << "mDataSockets read(" << mDataSockets[chan] << ") failed: " << msgLen; |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1043 | return false; |
| 1044 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1045 | |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 1046 | switch (msgLen) { |
| 1047 | case sizeof(*dl) + gSlotLen: /* GSM burst */ |
| 1048 | burstLen = gSlotLen; |
| 1049 | break; |
| 1050 | case sizeof(*dl) + EDGE_BURST_NBITS: /* EDGE burst */ |
Pau Espin Pedrol | 93fee1f | 2020-10-13 17:27:08 +0200 | [diff] [blame] | 1051 | if (cfg->tx_sps != 4) { |
| 1052 | 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] | 1053 | return false; |
| 1054 | } |
| 1055 | burstLen = EDGE_BURST_NBITS; |
| 1056 | break; |
| 1057 | default: |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1058 | 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] | 1059 | return false; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1060 | } |
| 1061 | |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 1062 | dl = (struct trxd_hdr_v01_dl *) buffer; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1063 | |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 1064 | /* Convert TDMA FN to the host endianness */ |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 1065 | fn = osmo_load32be(&dl->common.fn); |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 1066 | tn = dl->common.tn; |
Vadim Yanitskiy | b312325 | 2019-07-15 23:53:08 +0700 | [diff] [blame] | 1067 | |
Vadim Yanitskiy | dd571c6 | 2019-07-15 23:56:56 +0700 | [diff] [blame] | 1068 | /* Make sure we support the received header format */ |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 1069 | switch (dl->common.version) { |
Vadim Yanitskiy | dd571c6 | 2019-07-15 23:56:56 +0700 | [diff] [blame] | 1070 | case 0: |
| 1071 | /* Version 1 has the same format */ |
| 1072 | case 1: |
| 1073 | break; |
Vadim Yanitskiy | dd571c6 | 2019-07-15 23:56:56 +0700 | [diff] [blame] | 1074 | default: |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1075 | 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] | 1076 | return false; |
| 1077 | } |
| 1078 | |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1079 | 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] | 1080 | << "): fn=" << fn << ", tn=" << unsigned(tn) << ", burst_len=" << burstLen; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1081 | |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 1082 | TransceiverState *state = &mStates[chan]; |
| 1083 | GSM::Time currTime = GSM::Time(fn, tn); |
| 1084 | |
| 1085 | /* Verify proper FN order in DL stream */ |
| 1086 | if (state->first_dl_fn_rcv[tn]) { |
| 1087 | int32_t delta = GSM::FNDelta(currTime.FN(), state->last_dl_time_rcv[tn].FN()); |
| 1088 | if (delta == 1) { |
| 1089 | /* usual expected scenario, continue code flow */ |
| 1090 | } else if (delta == 0) { |
Pau Espin Pedrol | c249ce2 | 2020-07-17 18:33:10 +0200 | [diff] [blame] | 1091 | LOGCHAN(chan, DTRXDDL, INFO) << "Rx TRXD msg with repeated FN " << currTime; |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 1092 | state->ctrs.tx_trxd_fn_repeated++; |
| 1093 | dispatch_trx_rate_ctr_change(state, chan); |
| 1094 | return true; |
| 1095 | } else if (delta < 0) { |
Pau Espin Pedrol | c249ce2 | 2020-07-17 18:33:10 +0200 | [diff] [blame] | 1096 | LOGCHAN(chan, DTRXDDL, INFO) << "Rx TRXD msg with previous FN " << currTime |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 1097 | << " vs last " << state->last_dl_time_rcv[tn]; |
| 1098 | state->ctrs.tx_trxd_fn_outoforder++; |
| 1099 | dispatch_trx_rate_ctr_change(state, chan); |
| 1100 | /* Allow adding radio vector below, since it gets sorted in the queue */ |
| 1101 | } else if (chan == 0 && state->mFiller == FILLER_ZERO) { |
| 1102 | /* delta > 1. Some FN was lost in the middle. We can only easily rely |
| 1103 | * on consecutive FNs in TRX0 since it must transmit continuously in all |
| 1104 | * setups. Also, osmo-trx supports optionally filling empty bursts on |
| 1105 | * 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] | 1106 | LOGCHAN(chan, DTRXDDL, INFO) << "Rx TRXD msg with future FN " << currTime |
Pau Espin Pedrol | c0d6fd2 | 2020-07-09 16:51:47 +0200 | [diff] [blame] | 1107 | << " vs last " << state->last_dl_time_rcv[tn] |
| 1108 | << ", " << delta - 1 << " FN lost"; |
| 1109 | state->ctrs.tx_trxd_fn_skipped += delta - 1; |
| 1110 | dispatch_trx_rate_ctr_change(state, chan); |
| 1111 | } |
| 1112 | if (delta > 0) |
| 1113 | state->last_dl_time_rcv[tn] = currTime; |
| 1114 | } else { /* Initial check, simply store state */ |
| 1115 | state->first_dl_fn_rcv[tn] = true; |
| 1116 | state->last_dl_time_rcv[tn] = currTime; |
| 1117 | } |
| 1118 | |
Tom Tsou | 7c741ec | 2016-07-19 11:20:59 -0700 | [diff] [blame] | 1119 | BitVector newBurst(burstLen); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1120 | BitVector::iterator itr = newBurst.begin(); |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 1121 | uint8_t *bufferItr = dl->soft_bits; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1122 | while (itr < newBurst.end()) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1123 | *itr++ = *bufferItr++; |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1124 | |
Pau Espin Pedrol | e4166be | 2019-08-26 11:21:55 +0200 | [diff] [blame] | 1125 | addRadioVector(chan, newBurst, dl->tx_att, currTime); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1126 | |
| 1127 | return true; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1128 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1129 | |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1130 | bool Transceiver::driveReceiveRadio() |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1131 | { |
Pau Espin Pedrol | db936b9 | 2018-09-03 16:50:49 +0200 | [diff] [blame] | 1132 | int rc = mRadioInterface->driveReceiveRadio(); |
| 1133 | if (rc == 0) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1134 | usleep(100000); |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1135 | return true; |
Alexander Chemeris | 6a2bf0d | 2015-05-24 19:28:09 -0400 | [diff] [blame] | 1136 | } |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1137 | if (rc < 0) |
| 1138 | return false; |
| 1139 | |
| 1140 | if (mForceClockInterface || mTransmitDeadlineClock > mLastClockUpdateTime + GSM::Time(216,0)) { |
Philipp Maier | fdefbfa | 2020-05-22 12:17:13 +0200 | [diff] [blame] | 1141 | if (mForceClockInterface) |
| 1142 | LOGC(DTRXCLK, NOTICE) << "Sending CLOCK indications"; |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1143 | mForceClockInterface = false; |
| 1144 | return writeClockInterface(); |
| 1145 | } |
| 1146 | return true; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1147 | } |
| 1148 | |
Pau Espin Pedrol | 607a414 | 2019-07-01 13:56:17 +0200 | [diff] [blame] | 1149 | 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] | 1150 | { |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 1151 | std::ostringstream os; |
| 1152 | for (size_t i=0; i < bi->nbits; i++) { |
| 1153 | if (bi->rx_burst[i] > 0.5) os << "1"; |
| 1154 | else if (bi->rx_burst[i] > 0.25) os << "|"; |
| 1155 | else if (bi->rx_burst[i] > 0.0) os << "'"; |
| 1156 | else os << "-"; |
| 1157 | } |
| 1158 | |
Pau Espin Pedrol | e91544d | 2020-10-13 17:03:37 +0200 | [diff] [blame] | 1159 | double rssi_offset = rssiOffset(chan); |
| 1160 | |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1161 | LOGCHAN(chan, DTRXDUL, DEBUG) << std::fixed << std::right |
Pau Espin Pedrol | 1fba104 | 2019-09-06 14:22:31 +0200 | [diff] [blame] | 1162 | << " time: " << unsigned(bi->tn) << ":" << bi->fn |
Pau Espin Pedrol | e91544d | 2020-10-13 17:03:37 +0200 | [diff] [blame] | 1163 | << " RSSI: " << std::setw(5) << std::setprecision(1) << (bi->rssi - rssi_offset) |
Pau Espin Pedrol | 607a414 | 2019-07-01 13:56:17 +0200 | [diff] [blame] | 1164 | << "dBFS/" << std::setw(6) << -bi->rssi << "dBm" |
Pau Espin Pedrol | e91544d | 2020-10-13 17:03:37 +0200 | [diff] [blame] | 1165 | << " noise: " << std::setw(5) << std::setprecision(1) << (bi->noise - rssi_offset) |
Pau Espin Pedrol | 607a414 | 2019-07-01 13:56:17 +0200 | [diff] [blame] | 1166 | << "dBFS/" << std::setw(6) << -bi->noise << "dBm" |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1167 | << " TOA: " << std::setw(5) << std::setprecision(2) << bi->toa |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 1168 | << " C/I: " << std::setw(5) << std::setprecision(2) << bi->ci << "dB" |
Pau Espin Pedrol | 7dc07b9 | 2019-07-01 17:55:01 +0200 | [diff] [blame] | 1169 | << " bits: " << os; |
Tom Tsou | b0aefcb | 2016-03-06 03:44:34 -0800 | [diff] [blame] | 1170 | } |
| 1171 | |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1172 | bool Transceiver::driveReceiveFIFO(size_t chan) |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1173 | { |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1174 | struct trx_ul_burst_ind bi; |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 1175 | int rc; |
Pau Espin Pedrol | ddd18a5 | 2019-06-28 17:01:16 +0200 | [diff] [blame] | 1176 | |
Pau Espin Pedrol | 923b4bc | 2019-09-06 15:01:26 +0200 | [diff] [blame] | 1177 | if ((rc = pullRadioVector(chan, &bi)) < 0) { |
| 1178 | if (rc == -ENOENT) { /* timeslot off, continue processing */ |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1179 | 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] | 1180 | return true; |
| 1181 | } |
| 1182 | return false; /* other errors: we want to stop the process */ |
| 1183 | } |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1184 | |
Pau Espin Pedrol | 199a306 | 2020-07-27 10:58:51 +0200 | [diff] [blame] | 1185 | if (!bi.idle && log_check_level(DTRXDUL, LOGL_DEBUG)) |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1186 | logRxBurst(chan, &bi); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1187 | |
Pau Espin Pedrol | c3325b9 | 2019-07-22 17:47:02 +0200 | [diff] [blame] | 1188 | switch (mVersionTRXD[chan]) { |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1189 | case 0: |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1190 | return trxd_send_burst_ind_v0(chan, mDataSockets[chan], &bi); |
Pau Espin Pedrol | cf6113b | 2019-07-01 20:42:53 +0200 | [diff] [blame] | 1191 | case 1: |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1192 | return trxd_send_burst_ind_v1(chan, mDataSockets[chan], &bi); |
Pau Espin Pedrol | 15fa64b | 2019-07-01 20:41:55 +0200 | [diff] [blame] | 1193 | default: |
| 1194 | OSMO_ASSERT(false); |
| 1195 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1196 | } |
| 1197 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1198 | void Transceiver::driveTxFIFO() |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1199 | { |
| 1200 | |
| 1201 | /** |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1202 | Features a carefully controlled latency mechanism, to |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1203 | assure that transmit packets arrive at the radio/USRP |
| 1204 | before they need to be transmitted. |
| 1205 | |
| 1206 | Deadline clock indicates the burst that needs to be |
| 1207 | pushed into the FIFO right NOW. If transmit queue does |
| 1208 | not have a burst, stick in filler data. |
| 1209 | */ |
| 1210 | |
| 1211 | |
| 1212 | RadioClock *radioClock = (mRadioInterface->getClock()); |
Pau Espin Pedrol | 7c405a0 | 2017-07-04 16:24:06 +0200 | [diff] [blame] | 1213 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1214 | if (mOn) { |
| 1215 | //radioClock->wait(); // wait until clock updates |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1216 | LOGC(DTRXCLK, DEBUG) << "radio clock " << radioClock->get(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1217 | while (radioClock->get() + mTransmitLatency > mTransmitDeadlineClock) { |
| 1218 | // if underrun, then we're not providing bursts to radio/USRP fast |
| 1219 | // enough. Need to increase latency by one GSM frame. |
Thomas Tsou | 02d88d1 | 2013-04-05 15:36:30 -0400 | [diff] [blame] | 1220 | if (mRadioInterface->getWindowType() == RadioDevice::TX_WINDOW_USRP1) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1221 | if (mRadioInterface->isUnderrun()) { |
ttsou | 2173abf | 2012-08-08 00:51:31 +0000 | [diff] [blame] | 1222 | // only update latency at the defined frame interval |
| 1223 | if (radioClock->get() > mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL)) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1224 | mTransmitLatency = mTransmitLatency + GSM::Time(1,0); |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1225 | LOGC(DTRXCLK, INFO) << "new latency: " << mTransmitLatency << " (underrun " |
| 1226 | << radioClock->get() << " vs " |
| 1227 | << mLatencyUpdateTime + GSM::Time(USB_LATENCY_INTRVL) << ")"; |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1228 | mLatencyUpdateTime = radioClock->get(); |
| 1229 | } |
| 1230 | } |
| 1231 | else { |
| 1232 | // if underrun hasn't occurred in the last sec (216 frames) drop |
| 1233 | // transmit latency by a timeslot |
Pau Espin Pedrol | e564f0f | 2018-04-24 18:43:51 +0200 | [diff] [blame] | 1234 | if (mTransmitLatency > mRadioInterface->minLatency()) { |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1235 | if (radioClock->get() > mLatencyUpdateTime + GSM::Time(216,0)) { |
| 1236 | mTransmitLatency.decTN(); |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1237 | LOGC(DTRXCLK, INFO) << "reduced latency: " << mTransmitLatency; |
kurtis.heimerl | e380af3 | 2011-11-26 03:18:55 +0000 | [diff] [blame] | 1238 | mLatencyUpdateTime = radioClock->get(); |
| 1239 | } |
| 1240 | } |
| 1241 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1242 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1243 | // time to push burst to transmit FIFO |
| 1244 | pushRadioVector(mTransmitDeadlineClock); |
| 1245 | mTransmitDeadlineClock.incTN(); |
| 1246 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1247 | } |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1248 | |
| 1249 | radioClock->wait(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1250 | } |
| 1251 | |
| 1252 | |
| 1253 | |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1254 | bool Transceiver::writeClockInterface() |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1255 | { |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1256 | int msgLen; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1257 | char command[50]; |
| 1258 | // FIXME -- This should be adaptive. |
| 1259 | sprintf(command,"IND CLOCK %llu",(unsigned long long) (mTransmitDeadlineClock.FN()+2)); |
| 1260 | |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1261 | LOGC(DTRXCLK, INFO) << "sending " << command; |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1262 | |
Pau Espin Pedrol | b9d2515 | 2019-07-01 19:03:49 +0200 | [diff] [blame] | 1263 | msgLen = write(mClockSocket, command, strlen(command) + 1); |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1264 | if (msgLen <= 0) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1265 | LOGC(DTRXCLK, ERROR) << "mClockSocket write(" << mClockSocket << ") failed: " << msgLen; |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1266 | return false; |
| 1267 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1268 | |
| 1269 | mLastClockUpdateTime = mTransmitDeadlineClock; |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1270 | return true; |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1271 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1272 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1273 | void *RxUpperLoopAdapter(TrxChanThParams *params) |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1274 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1275 | char thread_name[16]; |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1276 | Transceiver *trx = params->trx; |
| 1277 | size_t num = params->num; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1278 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1279 | free(params); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1280 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1281 | snprintf(thread_name, 16, "RxUpper%zu", num); |
| 1282 | set_selfthread_name(thread_name); |
Pau Espin Pedrol | 553a250 | 2020-07-29 18:05:25 +0200 | [diff] [blame] | 1283 | OSMO_ASSERT(osmo_cpu_sched_vty_apply_localthread() == 0); |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1284 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1285 | while (1) { |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1286 | if (!trx->driveReceiveFIFO(num)) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1287 | 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] | 1288 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
| 1289 | break; |
| 1290 | } |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1291 | pthread_testcancel(); |
| 1292 | } |
| 1293 | return NULL; |
| 1294 | } |
| 1295 | |
| 1296 | void *RxLowerLoopAdapter(Transceiver *transceiver) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1297 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1298 | set_selfthread_name("RxLower"); |
Pau Espin Pedrol | 553a250 | 2020-07-29 18:05:25 +0200 | [diff] [blame] | 1299 | OSMO_ASSERT(osmo_cpu_sched_vty_apply_localthread() == 0); |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1300 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1301 | while (1) { |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1302 | if (!transceiver->driveReceiveRadio()) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1303 | LOGC(DTRXDUL, FATAL) << "Something went wrong in thread RxLower, requesting stop"; |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1304 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
| 1305 | break; |
| 1306 | } |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1307 | pthread_testcancel(); |
| 1308 | } |
| 1309 | return NULL; |
| 1310 | } |
| 1311 | |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1312 | void *TxLowerLoopAdapter(Transceiver *transceiver) |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1313 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1314 | set_selfthread_name("TxLower"); |
Pau Espin Pedrol | 553a250 | 2020-07-29 18:05:25 +0200 | [diff] [blame] | 1315 | OSMO_ASSERT(osmo_cpu_sched_vty_apply_localthread() == 0); |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1316 | |
Thomas Tsou | 92c16df | 2013-09-28 18:04:19 -0400 | [diff] [blame] | 1317 | while (1) { |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1318 | transceiver->driveTxFIFO(); |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1319 | pthread_testcancel(); |
| 1320 | } |
| 1321 | return NULL; |
| 1322 | } |
| 1323 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1324 | void *TxUpperLoopAdapter(TrxChanThParams *params) |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1325 | { |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1326 | char thread_name[16]; |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1327 | Transceiver *trx = params->trx; |
| 1328 | size_t num = params->num; |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1329 | |
Pau Espin Pedrol | 720b912 | 2019-07-22 18:10:52 +0200 | [diff] [blame] | 1330 | free(params); |
Thomas Tsou | 204a9f1 | 2013-10-29 18:34:16 -0400 | [diff] [blame] | 1331 | |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1332 | snprintf(thread_name, 16, "TxUpper%zu", num); |
| 1333 | set_selfthread_name(thread_name); |
Pau Espin Pedrol | 553a250 | 2020-07-29 18:05:25 +0200 | [diff] [blame] | 1334 | OSMO_ASSERT(osmo_cpu_sched_vty_apply_localthread() == 0); |
Pau Espin Pedrol | 5b60c98 | 2018-09-20 18:04:46 +0200 | [diff] [blame] | 1335 | |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1336 | while (1) { |
Pau Espin Pedrol | 76ff96e | 2019-08-26 12:05:48 +0200 | [diff] [blame] | 1337 | if (!trx->driveTxPriorityQueue(num)) { |
Pau Espin Pedrol | 9f2baf3 | 2019-12-19 21:03:03 +0100 | [diff] [blame] | 1338 | 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] | 1339 | osmo_signal_dispatch(SS_MAIN, S_MAIN_STOP_REQUIRED, NULL); |
| 1340 | break; |
| 1341 | } |
dburgess | b3a0ca4 | 2011-10-12 07:44:40 +0000 | [diff] [blame] | 1342 | pthread_testcancel(); |
| 1343 | } |
| 1344 | return NULL; |
| 1345 | } |