Eric | b7253c6 | 2022-11-28 19:21:08 +0100 | [diff] [blame] | 1 | #pragma once |
| 2 | /* |
| 3 | * (C) 2022 by sysmocom s.f.m.c. GmbH <info@sysmocom.de> |
| 4 | * All Rights Reserved |
| 5 | * |
| 6 | * Author: Eric Wild <ewild@sysmocom.de> |
| 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU Affero General Public License as published by |
| 10 | * the Free Software Foundation; either version 3 of the License, or |
| 11 | * (at your option) any later version. |
| 12 | * |
| 13 | * This program is distributed in the hope that it will be useful, |
| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | * GNU Affero General Public License for more details. |
| 17 | * |
| 18 | * You should have received a copy of the GNU Affero General Public License |
| 19 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 20 | * |
| 21 | */ |
| 22 | |
| 23 | #include <uhd/version.hpp> |
| 24 | #include <uhd/usrp/multi_usrp.hpp> |
| 25 | #include <uhd/types/metadata.hpp> |
| 26 | #include <complex> |
| 27 | #include <cstring> |
| 28 | #include <iostream> |
| 29 | #include <thread> |
| 30 | |
| 31 | #include <Timeval.h> |
| 32 | #include <vector> |
| 33 | |
| 34 | using blade_sample_type = std::complex<int16_t>; |
| 35 | const int SAMPLE_SCALE_FACTOR = 1; |
| 36 | |
| 37 | struct uhd_buf_wrap { |
| 38 | double rxticks; |
| 39 | size_t num_samps; |
| 40 | uhd::rx_metadata_t *md; |
| 41 | blade_sample_type *buf; |
| 42 | auto actual_samples_per_buffer() |
| 43 | { |
| 44 | return num_samps; |
| 45 | } |
| 46 | long get_first_ts() |
| 47 | { |
| 48 | return md->time_spec.to_ticks(rxticks); |
| 49 | } |
| 50 | int readall(blade_sample_type *outaddr) |
| 51 | { |
| 52 | memcpy(outaddr, buf, num_samps * sizeof(blade_sample_type)); |
| 53 | return num_samps; |
| 54 | } |
| 55 | int read_n(blade_sample_type *outaddr, int start, int num) |
| 56 | { |
| 57 | assert(start >= 0); |
| 58 | auto to_read = std::min((int)num_samps - start, num); |
| 59 | assert(to_read >= 0); |
| 60 | memcpy(outaddr, buf + start, to_read * sizeof(blade_sample_type)); |
| 61 | return to_read; |
| 62 | } |
| 63 | }; |
| 64 | |
| 65 | using dev_buf_t = uhd_buf_wrap; |
| 66 | using bh_fn_t = std::function<int(dev_buf_t *)>; |
| 67 | |
| 68 | template <typename T> struct uhd_hw { |
| 69 | uhd::usrp::multi_usrp::sptr dev; |
| 70 | uhd::rx_streamer::sptr rx_stream; |
| 71 | uhd::tx_streamer::sptr tx_stream; |
| 72 | blade_sample_type *one_pkt_buf; |
| 73 | std::vector<blade_sample_type *> pkt_ptrs; |
| 74 | size_t rx_spp; |
| 75 | double rxticks; |
| 76 | const unsigned int rxFullScale, txFullScale; |
| 77 | const int rxtxdelay; |
| 78 | float rxgain, txgain; |
| 79 | static std::atomic<bool> stop_me_flag; |
| 80 | |
| 81 | virtual ~uhd_hw() |
| 82 | { |
| 83 | delete[] one_pkt_buf; |
| 84 | } |
Eric | 097a16e | 2023-03-02 17:46:49 +0100 | [diff] [blame^] | 85 | uhd_hw() : rxFullScale(32767), txFullScale(32767 * 0.3), rxtxdelay(-67) |
Eric | b7253c6 | 2022-11-28 19:21:08 +0100 | [diff] [blame] | 86 | { |
| 87 | } |
| 88 | |
| 89 | void close_device() |
| 90 | { |
| 91 | } |
| 92 | |
| 93 | bool tuneTx(double freq, size_t chan = 0) |
| 94 | { |
| 95 | msleep(25); |
| 96 | dev->set_tx_freq(freq, chan); |
| 97 | msleep(25); |
| 98 | return true; |
| 99 | }; |
| 100 | bool tuneRx(double freq, size_t chan = 0) |
| 101 | { |
| 102 | msleep(25); |
| 103 | dev->set_rx_freq(freq, chan); |
| 104 | msleep(25); |
| 105 | return true; |
| 106 | }; |
| 107 | bool tuneRxOffset(double offset, size_t chan = 0) |
| 108 | { |
| 109 | return true; |
| 110 | }; |
| 111 | |
| 112 | double setRxGain(double dB, size_t chan = 0) |
| 113 | { |
| 114 | rxgain = dB; |
| 115 | msleep(25); |
| 116 | dev->set_rx_gain(dB, chan); |
| 117 | msleep(25); |
| 118 | return dB; |
| 119 | }; |
| 120 | double setTxGain(double dB, size_t chan = 0) |
| 121 | { |
| 122 | txgain = dB; |
| 123 | msleep(25); |
| 124 | dev->set_tx_gain(dB, chan); |
| 125 | msleep(25); |
| 126 | return dB; |
| 127 | }; |
| 128 | int setPowerAttenuation(int atten, size_t chan = 0) |
| 129 | { |
| 130 | return atten; |
| 131 | }; |
| 132 | |
| 133 | int init_device(bh_fn_t rxh, bh_fn_t txh) |
| 134 | { |
| 135 | auto const lock_delay_ms = 500; |
Eric Wild | 10b4e31 | 2023-01-11 18:53:48 +0100 | [diff] [blame] | 136 | auto clock_lock_attempts = 15; // x lock_delay_ms |
Eric | b7253c6 | 2022-11-28 19:21:08 +0100 | [diff] [blame] | 137 | auto const mcr = 26e6; |
| 138 | auto const rate = (1625e3 / 6) * 4; |
| 139 | auto const ref = "external"; |
| 140 | auto const gain = 35; |
| 141 | auto const freq = 931.4e6; // 936.8e6 |
| 142 | auto bw = 0.5e6; |
| 143 | auto const channel = 0; |
| 144 | // aligned to blade: 1020 samples per transfer |
| 145 | std::string args = { "recv_frame_size=4092,send_frame_size=4092" }; |
| 146 | |
| 147 | dev = uhd::usrp::multi_usrp::make(args); |
| 148 | std::cout << "Using Device: " << dev->get_pp_string() << std::endl; |
| 149 | dev->set_clock_source(ref); |
| 150 | dev->set_master_clock_rate(mcr); |
| 151 | dev->set_rx_rate(rate, channel); |
| 152 | dev->set_tx_rate(rate, channel); |
| 153 | uhd::tune_request_t tune_request(freq, 0); |
| 154 | dev->set_rx_freq(tune_request, channel); |
| 155 | dev->set_rx_gain(gain, channel); |
| 156 | dev->set_tx_gain(60, channel); |
| 157 | dev->set_rx_bandwidth(bw, channel); |
| 158 | dev->set_tx_bandwidth(bw, channel); |
| 159 | |
| 160 | while (!(dev->get_rx_sensor("lo_locked", channel).to_bool() && |
Eric Wild | 10b4e31 | 2023-01-11 18:53:48 +0100 | [diff] [blame] | 161 | dev->get_mboard_sensor("ref_locked").to_bool()) && |
| 162 | clock_lock_attempts > 0) { |
| 163 | std::cerr << "clock source lock attempts remaining: " << clock_lock_attempts << ".." |
| 164 | << std::endl; |
Eric | b7253c6 | 2022-11-28 19:21:08 +0100 | [diff] [blame] | 165 | std::this_thread::sleep_for(std::chrono::milliseconds(lock_delay_ms)); |
Eric Wild | 10b4e31 | 2023-01-11 18:53:48 +0100 | [diff] [blame] | 166 | clock_lock_attempts--; |
| 167 | } |
| 168 | |
| 169 | if (clock_lock_attempts <= 0) { |
| 170 | std::cerr << "Error locking clock, gpsdo missing? quitting.." << std::endl; |
| 171 | return -1; |
| 172 | } |
Eric | b7253c6 | 2022-11-28 19:21:08 +0100 | [diff] [blame] | 173 | |
| 174 | uhd::stream_args_t stream_args("sc16", "sc16"); |
| 175 | rx_stream = dev->get_rx_stream(stream_args); |
| 176 | uhd::stream_args_t stream_args2("sc16", "sc16"); |
| 177 | tx_stream = dev->get_tx_stream(stream_args2); |
| 178 | |
| 179 | rx_spp = rx_stream->get_max_num_samps(); |
| 180 | rxticks = dev->get_rx_rate(); |
| 181 | assert(rxticks == dev->get_tx_rate()); |
| 182 | one_pkt_buf = new blade_sample_type[rx_spp]; |
| 183 | pkt_ptrs = { 1, &one_pkt_buf[0] }; |
| 184 | return 0; |
| 185 | } |
| 186 | |
| 187 | void *rx_cb(bh_fn_t burst_handler) |
| 188 | { |
| 189 | void *ret = nullptr; |
| 190 | static int to_skip = 0; |
| 191 | |
| 192 | uhd::rx_metadata_t md; |
| 193 | auto num_rx_samps = rx_stream->recv(pkt_ptrs.front(), rx_spp, md, 1.0, true); |
| 194 | |
| 195 | if (md.error_code == uhd::rx_metadata_t::ERROR_CODE_TIMEOUT) { |
| 196 | std::cerr << boost::format("Timeout while streaming") << std::endl; |
| 197 | exit(0); |
| 198 | } |
| 199 | if (md.error_code == uhd::rx_metadata_t::ERROR_CODE_OVERFLOW) { |
| 200 | std::cerr << boost::format("Got an overflow indication\n") << std::endl; |
| 201 | exit(0); |
| 202 | } |
| 203 | if (md.error_code != uhd::rx_metadata_t::ERROR_CODE_NONE) { |
| 204 | std::cerr << str(boost::format("Receiver error: %s") % md.strerror()); |
| 205 | exit(0); |
| 206 | } |
| 207 | |
| 208 | dev_buf_t rcd = { rxticks, num_rx_samps, &md, &one_pkt_buf[0] }; |
| 209 | |
| 210 | if (to_skip < 120) // prevents weird overflows on startup |
| 211 | to_skip++; |
| 212 | else { |
| 213 | burst_handler(&rcd); |
| 214 | } |
| 215 | |
| 216 | return ret; |
| 217 | } |
| 218 | |
| 219 | auto get_rx_burst_handler_fn(bh_fn_t burst_handler) |
| 220 | { |
| 221 | auto fn = [this, burst_handler] { |
| 222 | pthread_setname_np(pthread_self(), "rxrun"); |
| 223 | |
| 224 | uhd::stream_cmd_t stream_cmd(uhd::stream_cmd_t::STREAM_MODE_START_CONTINUOUS); |
| 225 | stream_cmd.stream_now = true; |
| 226 | stream_cmd.time_spec = uhd::time_spec_t(); |
| 227 | rx_stream->issue_stream_cmd(stream_cmd); |
| 228 | |
| 229 | while (!stop_me_flag) { |
| 230 | rx_cb(burst_handler); |
| 231 | } |
| 232 | }; |
| 233 | return fn; |
| 234 | } |
| 235 | auto get_tx_burst_handler_fn(bh_fn_t burst_handler) |
| 236 | { |
| 237 | auto fn = [] { |
| 238 | // dummy |
| 239 | }; |
| 240 | return fn; |
| 241 | } |
| 242 | void submit_burst_ts(blade_sample_type *buffer, int len, uint64_t ts) |
| 243 | { |
| 244 | uhd::tx_metadata_t m = {}; |
| 245 | m.end_of_burst = true; |
| 246 | m.start_of_burst = true; |
| 247 | m.has_time_spec = true; |
| 248 | m.time_spec = m.time_spec.from_ticks(ts + rxtxdelay, rxticks); // uhd specific b210 delay! |
| 249 | std::vector<void *> ptrs(1, buffer); |
| 250 | |
| 251 | tx_stream->send(ptrs, len, m, 1.0); |
| 252 | #ifdef DBGXX |
| 253 | uhd::async_metadata_t async_md; |
| 254 | bool tx_ack = false; |
| 255 | while (!tx_ack && tx_stream->recv_async_msg(async_md)) { |
| 256 | tx_ack = (async_md.event_code == uhd::async_metadata_t::EVENT_CODE_BURST_ACK); |
| 257 | } |
| 258 | std::cout << (tx_ack ? "yay" : "nay") << " " << async_md.time_spec.to_ticks(rxticks) << std::endl; |
| 259 | #endif |
| 260 | } |
| 261 | }; |