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
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
|
//
// Copyright 2011-2013 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#include "../../transport/super_recv_packet_handler.hpp"
#include "../../transport/super_send_packet_handler.hpp"
#include "b100_impl.hpp"
#include <uhd/utils/log.hpp>
#include <uhdlib/usrp/common/validate_subdev_spec.hpp>
#include <boost/format.hpp>
#include <boost/thread.hpp>
#include <functional>
#include <memory>
using namespace uhd;
using namespace uhd::usrp;
using namespace uhd::transport;
void b100_impl::update_rates(void){
const fs_path mb_path = "/mboards/0";
_tree->access<double>(mb_path / "tick_rate").update();
//and now that the tick rate is set, init the host rates to something
for(const std::string &name: _tree->list(mb_path / "rx_dsps")){
_tree->access<double>(mb_path / "rx_dsps" / name / "rate" / "value").update();
}
for(const std::string &name: _tree->list(mb_path / "tx_dsps")){
_tree->access<double>(mb_path / "tx_dsps" / name / "rate" / "value").update();
}
}
void b100_impl::update_tick_rate(const double rate){
//update the tick rate on all existing streamers -> thread safe
for (size_t i = 0; i < _rx_streamers.size(); i++){
std::shared_ptr<sph::recv_packet_streamer> my_streamer =
std::dynamic_pointer_cast<sph::recv_packet_streamer>(_rx_streamers[i].lock());
if (my_streamer.get() == NULL) continue;
my_streamer->set_tick_rate(rate);
}
for (size_t i = 0; i < _tx_streamers.size(); i++){
std::shared_ptr<sph::send_packet_streamer> my_streamer =
std::dynamic_pointer_cast<sph::send_packet_streamer>(_tx_streamers[i].lock());
if (my_streamer.get() == NULL) continue;
my_streamer->set_tick_rate(rate);
}
}
void b100_impl::update_rx_samp_rate(const size_t dspno, const double rate){
std::shared_ptr<sph::recv_packet_streamer> my_streamer =
std::dynamic_pointer_cast<sph::recv_packet_streamer>(_rx_streamers[dspno].lock());
if (my_streamer.get() == NULL) return;
my_streamer->set_samp_rate(rate);
const double adj = _rx_dsps[dspno]->get_scaling_adjustment();
my_streamer->set_scale_factor(adj);
}
void b100_impl::update_tx_samp_rate(const size_t dspno, const double rate){
std::shared_ptr<sph::send_packet_streamer> my_streamer =
std::dynamic_pointer_cast<sph::send_packet_streamer>(_tx_streamers[dspno].lock());
if (my_streamer.get() == NULL) return;
my_streamer->set_samp_rate(rate);
const double adj = _tx_dsp->get_scaling_adjustment();
my_streamer->set_scale_factor(adj);
}
void b100_impl::update_rx_subdev_spec(const uhd::usrp::subdev_spec_t &spec){
fs_path root = "/mboards/0/dboards";
//sanity checking
validate_subdev_spec(_tree, spec, "rx");
//setup mux for this spec
bool fe_swapped = false;
for (size_t i = 0; i < spec.size(); i++){
const std::string conn = _tree->access<std::string>(root / spec[i].db_name / "rx_frontends" / spec[i].sd_name / "connection").get();
if (i == 0 and (conn == "QI" or conn == "Q")) fe_swapped = true;
_rx_dsps[i]->set_mux(conn, fe_swapped);
}
_rx_fe->set_mux(fe_swapped);
}
void b100_impl::update_tx_subdev_spec(const uhd::usrp::subdev_spec_t &spec){
fs_path root = "/mboards/0/dboards";
//sanity checking
validate_subdev_spec(_tree, spec, "tx");
//set the mux for this spec
const std::string conn = _tree->access<std::string>(root / spec[0].db_name / "tx_frontends" / spec[0].sd_name / "connection").get();
_tx_fe->set_mux(conn);
}
/***********************************************************************
* Async Data
**********************************************************************/
bool b100_impl::recv_async_msg(
async_metadata_t &async_metadata, double timeout
){
return _fifo_ctrl->pop_async_msg(async_metadata, timeout);
}
/***********************************************************************
* Receive streamer
**********************************************************************/
rx_streamer::sptr b100_impl::get_rx_stream(const uhd::stream_args_t &args_){
stream_args_t args = args_;
//setup defaults for unspecified values
args.otw_format = args.otw_format.empty()? "sc16" : args.otw_format;
args.channels = args.channels.empty()? std::vector<size_t>(1, 0) : args.channels;
//calculate packet size
static const size_t hdr_size = 0
+ vrt::max_if_hdr_words32*sizeof(uint32_t)
+ sizeof(vrt::if_packet_info_t().tlr) //forced to have trailer
- sizeof(vrt::if_packet_info_t().cid) //no class id ever used
- sizeof(vrt::if_packet_info_t().tsi) //no int time ever used
;
const size_t bpp = _data_transport->get_recv_frame_size() - hdr_size;
const size_t bpi = convert::get_bytes_per_item(args.otw_format);
const size_t spp = unsigned(args.args.cast<double>("spp", bpp/bpi));
//make the new streamer given the samples per packet
std::shared_ptr<sph::recv_packet_streamer> my_streamer = std::make_shared<sph::recv_packet_streamer>(spp);
//init some streamer stuff
my_streamer->resize(args.channels.size());
my_streamer->set_vrt_unpacker(&vrt::if_hdr_unpack_le);
//set the converter
uhd::convert::id_type id;
id.input_format = args.otw_format + "_item32_le";
id.num_inputs = 1;
id.output_format = args.cpu_format;
id.num_outputs = 1;
my_streamer->set_converter(id);
//bind callbacks for the handler
for (size_t chan_i = 0; chan_i < args.channels.size(); chan_i++){
const size_t dsp = args.channels[chan_i];
_rx_dsps[dsp]->set_nsamps_per_packet(spp); //seems to be a good place to set this
_rx_dsps[dsp]->setup(args);
_recv_demuxer->realloc_sid(B100_RX_SID_BASE + dsp);
my_streamer->set_xport_chan_get_buff(chan_i, std::bind(
&recv_packet_demuxer_3000::get_recv_buff, _recv_demuxer, B100_RX_SID_BASE + dsp, std::placeholders::_1
), true /*flush*/);
my_streamer->set_overflow_handler(chan_i, std::bind(
&rx_dsp_core_200::handle_overflow, _rx_dsps[dsp]
));
my_streamer->set_issue_stream_cmd(chan_i, std::bind(
&rx_dsp_core_200::issue_stream_command, _rx_dsps[dsp], std::placeholders::_1));
_rx_streamers[dsp] = my_streamer; //store weak pointer
}
//sets all tick and samp rates on this streamer
this->update_rates();
return my_streamer;
}
/***********************************************************************
* Transmit streamer
**********************************************************************/
tx_streamer::sptr b100_impl::get_tx_stream(const uhd::stream_args_t &args_){
stream_args_t args = args_;
//setup defaults for unspecified values
args.otw_format = args.otw_format.empty()? "sc16" : args.otw_format;
args.channels = args.channels.empty()? std::vector<size_t>(1, 0) : args.channels;
//calculate packet size
static const size_t hdr_size = 0
+ vrt::max_if_hdr_words32*sizeof(uint32_t)
+ sizeof(vrt::if_packet_info_t().tlr) //forced to have trailer
- sizeof(vrt::if_packet_info_t().sid) //no stream id ever used
- sizeof(vrt::if_packet_info_t().cid) //no class id ever used
- sizeof(vrt::if_packet_info_t().tsi) //no int time ever used
;
static const size_t bpp = _data_transport->get_send_frame_size() - hdr_size;
const size_t spp = bpp/convert::get_bytes_per_item(args.otw_format);
//make the new streamer given the samples per packet
std::shared_ptr<sph::send_packet_streamer> my_streamer = std::make_shared<sph::send_packet_streamer>(spp);
//init some streamer stuff
my_streamer->resize(args.channels.size());
my_streamer->set_vrt_packer(&vrt::if_hdr_pack_le);
//set the converter
uhd::convert::id_type id;
id.input_format = args.cpu_format;
id.num_inputs = 1;
id.output_format = args.otw_format + "_item32_le";
id.num_outputs = 1;
my_streamer->set_converter(id);
//bind callbacks for the handler
for (size_t chan_i = 0; chan_i < args.channels.size(); chan_i++){
const size_t dsp = args.channels[chan_i];
UHD_ASSERT_THROW(dsp == 0); //always 0
_tx_dsp->setup(args);
my_streamer->set_xport_chan_get_buff(chan_i, std::bind(
&zero_copy_if::get_send_buff, _data_transport, std::placeholders::_1
));
my_streamer->set_async_receiver(std::bind(&fifo_ctrl_excelsior::pop_async_msg, _fifo_ctrl, std::placeholders::_1, std::placeholders::_2));
_tx_streamers[dsp] = my_streamer; //store weak pointer
}
//sets all tick and samp rates on this streamer
this->update_rates();
return my_streamer;
}
|
