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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include "sigsession.h" | |
22 | ||
23 | #include "logicdata.h" | |
24 | #include "logicdatasnapshot.h" | |
25 | #include "view/logicsignal.h" | |
26 | ||
27 | #include <QDebug> | |
28 | ||
29 | #include <assert.h> | |
30 | ||
31 | using namespace boost; | |
32 | using namespace std; | |
33 | ||
34 | namespace pv { | |
35 | ||
36 | // TODO: This should not be necessary | |
37 | SigSession* SigSession::_session = NULL; | |
38 | ||
39 | SigSession::SigSession() | |
40 | { | |
41 | // TODO: This should not be necessary | |
42 | _session = this; | |
43 | } | |
44 | ||
45 | SigSession::~SigSession() | |
46 | { | |
47 | // TODO: This should not be necessary | |
48 | _session = NULL; | |
49 | } | |
50 | ||
51 | void SigSession::load_file(const std::string &name) | |
52 | { | |
53 | if (sr_session_load(name.c_str()) == SR_OK) { | |
54 | /* sigrok session file */ | |
55 | sr_session_datafeed_callback_add(data_feed_in_proc); | |
56 | sr_session_start(); | |
57 | sr_session_run(); | |
58 | sr_session_stop(); | |
59 | } | |
60 | } | |
61 | ||
62 | void SigSession::start_capture(struct sr_dev_inst *sdi, | |
63 | uint64_t record_length, uint64_t sample_rate) | |
64 | { | |
65 | sr_session_new(); | |
66 | sr_session_datafeed_callback_add(data_feed_in_proc); | |
67 | ||
68 | if (sr_session_dev_add(sdi) != SR_OK) { | |
69 | qDebug() << "Failed to use device."; | |
70 | sr_session_destroy(); | |
71 | return; | |
72 | } | |
73 | ||
74 | if (sr_dev_config_set(sdi, SR_HWCAP_LIMIT_SAMPLES, | |
75 | &record_length) != SR_OK) { | |
76 | qDebug() << "Failed to configure time-based sample limit."; | |
77 | sr_session_destroy(); | |
78 | return; | |
79 | } | |
80 | ||
81 | if (sr_dev_config_set(sdi, SR_HWCAP_SAMPLERATE, | |
82 | &sample_rate) != SR_OK) { | |
83 | qDebug() << "Failed to configure samplerate."; | |
84 | sr_session_destroy(); | |
85 | return; | |
86 | } | |
87 | ||
88 | if (sr_session_start() != SR_OK) { | |
89 | qDebug() << "Failed to start session."; | |
90 | return; | |
91 | } | |
92 | ||
93 | sr_session_run(); | |
94 | sr_session_destroy(); | |
95 | } | |
96 | ||
97 | vector< shared_ptr<view::Signal> >& SigSession::get_signals() | |
98 | { | |
99 | return _signals; | |
100 | } | |
101 | ||
102 | boost::shared_ptr<LogicData> SigSession::get_data() | |
103 | { | |
104 | return _logic_data; | |
105 | } | |
106 | ||
107 | void SigSession::data_feed_in(const struct sr_dev_inst *sdi, | |
108 | struct sr_datafeed_packet *packet) | |
109 | { | |
110 | using view::LogicSignal; | |
111 | ||
112 | assert(sdi); | |
113 | assert(packet); | |
114 | ||
115 | switch (packet->type) { | |
116 | case SR_DF_HEADER: | |
117 | _signals.clear(); | |
118 | break; | |
119 | ||
120 | case SR_DF_META_LOGIC: | |
121 | { | |
122 | assert(packet->payload); | |
123 | ||
124 | const sr_datafeed_meta_logic &meta_logic = | |
125 | *(sr_datafeed_meta_logic*)packet->payload; | |
126 | ||
127 | // Create an empty LogiData for coming data snapshots | |
128 | _logic_data.reset(new LogicData(meta_logic)); | |
129 | assert(_logic_data); | |
130 | if(!_logic_data) | |
131 | break; | |
132 | ||
133 | // Add the signals | |
134 | for (int i = 0; i < meta_logic.num_probes; i++) | |
135 | { | |
136 | const sr_probe *const probe = | |
137 | (const sr_probe*)g_slist_nth_data( | |
138 | sdi->probes, i); | |
139 | if(probe->enabled) | |
140 | { | |
141 | shared_ptr<LogicSignal> signal( | |
142 | new LogicSignal(probe->name, | |
143 | _logic_data, | |
144 | probe->index)); | |
145 | _signals.push_back(signal); | |
146 | } | |
147 | } | |
148 | ||
149 | break; | |
150 | } | |
151 | ||
152 | case SR_DF_LOGIC: | |
153 | ||
154 | assert(packet->payload); | |
155 | if(!_cur_logic_snapshot) | |
156 | { | |
157 | // Create a new data snapshot | |
158 | _cur_logic_snapshot = shared_ptr<LogicDataSnapshot>( | |
159 | new LogicDataSnapshot( | |
160 | *(sr_datafeed_logic*)packet->payload)); | |
161 | _logic_data->push_snapshot(_cur_logic_snapshot); | |
162 | } | |
163 | else | |
164 | { | |
165 | // Append to the existing data snapshot | |
166 | _cur_logic_snapshot->append_payload( | |
167 | *(sr_datafeed_logic*)packet->payload); | |
168 | } | |
169 | ||
170 | break; | |
171 | ||
172 | case SR_DF_END: | |
173 | _cur_logic_snapshot.reset(); | |
174 | data_updated(); | |
175 | break; | |
176 | } | |
177 | } | |
178 | ||
179 | void SigSession::data_feed_in_proc(const struct sr_dev_inst *sdi, | |
180 | struct sr_datafeed_packet *packet) | |
181 | { | |
182 | assert(_session); | |
183 | _session->data_feed_in(sdi, packet); | |
184 | } | |
185 | ||
186 | } // namespace pv |