1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
|
/*
Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010 Her Majesty the
Queen in Right of Canada (Communications Research Center Canada)
Copyright (C) 2017
Matthias P. Braendli, matthias.braendli@mpb.li
http://opendigitalradio.org
DESCRIPTION:
This presents a TCP socket to an external tool which calculates
a Digital Predistortion model from a short sequence of transmit
samples and corresponding receive samples.
*/
/*
This file is part of ODR-DabMod.
ODR-DabMod is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
ODR-DabMod is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ODR-DabMod. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef HAVE_OUTPUT_UHD
#include <uhd/utils/thread_priority.hpp>
#include <uhd/utils/safe_main.hpp>
#include <uhd/usrp/multi_usrp.hpp>
#include <boost/thread.hpp>
#include <memory>
#include <string>
#include "Log.h"
#include "TimestampDecoder.h"
enum class BurstRequestState {
None, // To pending request
SaveTransmitFrame, // The TX thread has to save an outgoing frame
SaveReceiveFrame, // The RX thread has to save an incoming frame
Acquired, // Both TX and RX frames are ready
};
struct UHDReceiveBurstRequest {
// All fields in this struct are protected
mutable boost::mutex mutex;
boost::condition_variable mutex_notification;
BurstRequestState state;
// In the SaveTransmit states, frame_length samples are saved into
// the vectors
size_t frame_length;
// The timestamp of the first sample of the TX buffers
uint32_t tx_second;
uint32_t tx_pps; // in units of 1/16384000s
std::vector<uint8_t> tx_samples;
// The timestamp of the first sample of the RX buffers
uint32_t rx_second;
uint32_t rx_pps;
std::vector<uint8_t> rx_samples;
};
// Serve TX samples and RX feedback samples over a TCP connection
class OutputUHDFeedback {
public:
OutputUHDFeedback();
OutputUHDFeedback(const OutputUHDFeedback& other) = delete;
OutputUHDFeedback& operator=(const OutputUHDFeedback& other) = delete;
~OutputUHDFeedback();
void setup(uhd::usrp::multi_usrp::sptr usrp, uint16_t port, uint32_t sampleRate);
void set_tx_frame(const std::vector<uint8_t> &buf,
const struct frame_timestamp& ts);
private:
// Thread that reacts to burstRequests and receives from the USRP
void ReceiveBurstThread(void);
// Thread that listens for requests over TCP to get TX and RX feedback
void ServeFeedbackThread(void);
boost::thread rx_burst_thread;
boost::thread burst_tcp_thread;
UHDReceiveBurstRequest burstRequest;
bool m_running = false;
uint16_t m_port = 0;
uint32_t m_sampleRate = 0;
uhd::usrp::multi_usrp::sptr m_usrp;
};
#endif // HAVE_OUTPUT_UHD
|
