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
|
/* -*- c++ -*- */
/*
* Copyright 2010 Free Software Foundation, Inc.
*
* This file is part of GNU Radio
*
* GNU Radio 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, or (at your option)
* any later version.
*
* GNU Radio 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 GNU Radio; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street,
* Boston, MA 02110-1301, USA.
*/
#include <uhd_simple_sink.h>
#include <gr_io_signature.h>
#include <boost/thread.hpp>
#include <stdexcept>
#include "utils.h"
/***********************************************************************
* Make UHD Sink
**********************************************************************/
boost::shared_ptr<uhd_simple_sink> uhd_make_simple_sink(
const std::string &args,
const std::string &type
){
return boost::shared_ptr<uhd_simple_sink>(
new uhd_simple_sink(args_to_device_addr(args), type)
);
}
/***********************************************************************
* UHD Sink
**********************************************************************/
uhd_simple_sink::uhd_simple_sink(
const uhd::device_addr_t &addr,
const std::string &type
) : gr_sync_block(
"uhd sink",
gr_make_io_signature(1, 1, get_size(type)),
gr_make_io_signature(0, 0, 0)
){
_type = type;
_dev = uhd::device::make(addr);
_sizeof_samp = get_size(type);
}
uhd_simple_sink::~uhd_simple_sink(void){
//NOP
}
/***********************************************************************
* Work
**********************************************************************/
int uhd_simple_sink::work(
int noutput_items,
gr_vector_const_void_star &input_items,
gr_vector_void_star &output_items
){
const size_t max_samples = wax::cast<size_t>((*_dev)[uhd::DEVICE_PROP_MAX_TX_SAMPLES]);
size_t total_items_sent = 0;
uhd::metadata_t metadata;
metadata.start_of_burst = true;
//handles fragmentation
while(total_items_sent < size_t(noutput_items)){
size_t items_sent = _dev->send(
boost::asio::buffer(
(uint8_t *)input_items[0]+(total_items_sent*_sizeof_samp),
std::min(max_samples, noutput_items-total_items_sent)*_sizeof_samp
), metadata, _type
);
total_items_sent += items_sent;
}
return noutput_items;
}
|
