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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 <extdef.h> | |
22 | ||
23 | #include <assert.h> | |
24 | ||
25 | #include <boost/foreach.hpp> | |
26 | ||
27 | #include <libsigrok/libsigrok.h> | |
28 | ||
29 | #include <QAction> | |
30 | #include <QDebug> | |
31 | ||
32 | #include "samplingbar.h" | |
33 | ||
34 | #include <pv/devicemanager.h> | |
35 | #include <pv/dialogs/deviceoptions.h> | |
36 | ||
37 | using namespace std; | |
38 | ||
39 | namespace pv { | |
40 | namespace toolbars { | |
41 | ||
42 | const uint64_t SamplingBar::RecordLengths[20] = { | |
43 | 1000, | |
44 | 2500, | |
45 | 5000, | |
46 | 10000, | |
47 | 25000, | |
48 | 50000, | |
49 | 100000, | |
50 | 250000, | |
51 | 500000, | |
52 | 1000000, | |
53 | 2000000, | |
54 | 5000000, | |
55 | 10000000, | |
56 | 25000000, | |
57 | 50000000, | |
58 | 100000000, | |
59 | 250000000, | |
60 | 500000000, | |
61 | 1000000000, | |
62 | 10000000000ULL, | |
63 | }; | |
64 | ||
65 | const uint64_t SamplingBar::DefaultRecordLength = 1000000; | |
66 | ||
67 | SamplingBar::SamplingBar(QWidget *parent) : | |
68 | QToolBar("Sampling Bar", parent), | |
69 | _device_selector(this), | |
70 | _configure_button(this), | |
71 | _record_length_selector(this), | |
72 | _sample_rate_list(this), | |
73 | _icon_green(":/icons/status-green.svg"), | |
74 | _icon_grey(":/icons/status-grey.svg"), | |
75 | _run_stop_button(this) | |
76 | { | |
77 | connect(&_run_stop_button, SIGNAL(clicked()), | |
78 | this, SLOT(on_run_stop())); | |
79 | connect(&_device_selector, SIGNAL(currentIndexChanged (int)), | |
80 | this, SLOT(on_device_selected())); | |
81 | connect(&_configure_button, SIGNAL(clicked()), | |
82 | this, SLOT(on_configure())); | |
83 | ||
84 | _sample_rate_value.setDecimals(0); | |
85 | _sample_rate_value.setSuffix("Hz"); | |
86 | ||
87 | for (size_t i = 0; i < countof(RecordLengths); i++) | |
88 | { | |
89 | const uint64_t &l = RecordLengths[i]; | |
90 | char *const text = sr_si_string_u64(l, " samples"); | |
91 | _record_length_selector.addItem(QString(text), | |
92 | qVariantFromValue(l)); | |
93 | g_free(text); | |
94 | ||
95 | if (l == DefaultRecordLength) | |
96 | _record_length_selector.setCurrentIndex(i); | |
97 | } | |
98 | ||
99 | set_sampling(false); | |
100 | ||
101 | _configure_button.setIcon(QIcon::fromTheme("configure", | |
102 | QIcon(":/icons/configure.png"))); | |
103 | ||
104 | _run_stop_button.setToolButtonStyle(Qt::ToolButtonTextBesideIcon); | |
105 | ||
106 | addWidget(&_device_selector); | |
107 | addWidget(&_configure_button); | |
108 | addWidget(&_record_length_selector); | |
109 | _sample_rate_list_action = addWidget(&_sample_rate_list); | |
110 | _sample_rate_value_action = addWidget(&_sample_rate_value); | |
111 | addWidget(&_run_stop_button); | |
112 | ||
113 | connect(&_sample_rate_list, SIGNAL(currentIndexChanged(int)), | |
114 | this, SLOT(on_sample_rate_changed())); | |
115 | connect(&_sample_rate_value, SIGNAL(editingFinished()), | |
116 | this, SLOT(on_sample_rate_changed())); | |
117 | } | |
118 | ||
119 | void SamplingBar::set_device_list( | |
120 | const std::list<struct sr_dev_inst*> &devices) | |
121 | { | |
122 | _device_selector.clear(); | |
123 | ||
124 | BOOST_FOREACH (sr_dev_inst *sdi, devices) { | |
125 | const string title = DeviceManager::format_device_title(sdi); | |
126 | _device_selector.addItem(title.c_str(), | |
127 | qVariantFromValue((void*)sdi)); | |
128 | } | |
129 | ||
130 | update_sample_rate_selector(); | |
131 | } | |
132 | ||
133 | struct sr_dev_inst* SamplingBar::get_selected_device() const | |
134 | { | |
135 | const int index = _device_selector.currentIndex(); | |
136 | if (index < 0) | |
137 | return NULL; | |
138 | ||
139 | return (sr_dev_inst*)_device_selector.itemData( | |
140 | index).value<void*>(); | |
141 | } | |
142 | ||
143 | void SamplingBar::set_selected_device(struct sr_dev_inst *const sdi) | |
144 | { | |
145 | for (int i = 0; i < _device_selector.count(); i++) | |
146 | if (sdi == _device_selector.itemData(i).value<void*>()) { | |
147 | _device_selector.setCurrentIndex(i); | |
148 | return; | |
149 | } | |
150 | } | |
151 | ||
152 | uint64_t SamplingBar::get_record_length() const | |
153 | { | |
154 | const int index = _record_length_selector.currentIndex(); | |
155 | if (index < 0) | |
156 | return 0; | |
157 | ||
158 | return _record_length_selector.itemData(index).value<uint64_t>(); | |
159 | } | |
160 | ||
161 | void SamplingBar::set_sampling(bool sampling) | |
162 | { | |
163 | _run_stop_button.setIcon(sampling ? _icon_green : _icon_grey); | |
164 | _run_stop_button.setText(sampling ? "Stop" : "Run"); | |
165 | } | |
166 | ||
167 | void SamplingBar::update_sample_rate_selector() | |
168 | { | |
169 | const sr_dev_inst *const sdi = get_selected_device(); | |
170 | GVariant *gvar_dict, *gvar_list; | |
171 | const uint64_t *elements = NULL; | |
172 | gsize num_elements; | |
173 | QAction *selector_action = NULL; | |
174 | ||
175 | assert(_sample_rate_value_action); | |
176 | assert(_sample_rate_list_action); | |
177 | ||
178 | if (!sdi) | |
179 | return; | |
180 | ||
181 | if (sr_config_list(sdi->driver, SR_CONF_SAMPLERATE, | |
182 | &gvar_dict, sdi) != SR_OK) | |
183 | return; | |
184 | ||
185 | _sample_rate_list_action->setVisible(false); | |
186 | _sample_rate_value_action->setVisible(false); | |
187 | ||
188 | if ((gvar_list = g_variant_lookup_value(gvar_dict, | |
189 | "samplerate-steps", G_VARIANT_TYPE("at")))) { | |
190 | elements = (const uint64_t *)g_variant_get_fixed_array( | |
191 | gvar_list, &num_elements, sizeof(uint64_t)); | |
192 | _sample_rate_value.setRange(elements[0], elements[1]); | |
193 | _sample_rate_value.setSingleStep(elements[2]); | |
194 | g_variant_unref(gvar_list); | |
195 | ||
196 | selector_action = _sample_rate_value_action; | |
197 | } | |
198 | else if ((gvar_list = g_variant_lookup_value(gvar_dict, | |
199 | "samplerates", G_VARIANT_TYPE("at")))) | |
200 | { | |
201 | elements = (const uint64_t *)g_variant_get_fixed_array( | |
202 | gvar_list, &num_elements, sizeof(uint64_t)); | |
203 | _sample_rate_list.clear(); | |
204 | ||
205 | for (unsigned int i = 0; i < num_elements; i++) | |
206 | { | |
207 | char *const s = sr_samplerate_string(elements[i]); | |
208 | _sample_rate_list.addItem(QString(s), | |
209 | qVariantFromValue(elements[i])); | |
210 | g_free(s); | |
211 | } | |
212 | ||
213 | _sample_rate_list.show(); | |
214 | g_variant_unref(gvar_list); | |
215 | ||
216 | selector_action = _sample_rate_list_action; | |
217 | } | |
218 | ||
219 | g_variant_unref(gvar_dict); | |
220 | update_sample_rate_selector_value(); | |
221 | ||
222 | // We delay showing the action, so that value change events | |
223 | // are ignored. | |
224 | if (selector_action) | |
225 | selector_action->setVisible(true); | |
226 | } | |
227 | ||
228 | void SamplingBar::update_sample_rate_selector_value() | |
229 | { | |
230 | sr_dev_inst *const sdi = get_selected_device(); | |
231 | GVariant *gvar; | |
232 | uint64_t samplerate; | |
233 | ||
234 | assert(sdi); | |
235 | ||
236 | if (sr_config_get(sdi->driver, SR_CONF_SAMPLERATE, | |
237 | &gvar, sdi) != SR_OK) { | |
238 | qDebug() << | |
239 | "WARNING: Failed to get value of sample rate"; | |
240 | return; | |
241 | } | |
242 | samplerate = g_variant_get_uint64(gvar); | |
243 | g_variant_unref(gvar); | |
244 | ||
245 | assert(_sample_rate_value_action); | |
246 | assert(_sample_rate_list_action); | |
247 | ||
248 | if (_sample_rate_value_action->isVisible()) | |
249 | _sample_rate_value.setValue(samplerate); | |
250 | else if (_sample_rate_list_action->isVisible()) | |
251 | { | |
252 | for (int i = 0; i < _sample_rate_list.count(); i++) | |
253 | if (samplerate == _sample_rate_list.itemData( | |
254 | i).value<uint64_t>()) | |
255 | _sample_rate_list.setCurrentIndex(i); | |
256 | } | |
257 | } | |
258 | ||
259 | void SamplingBar::commit_sample_rate() | |
260 | { | |
261 | uint64_t sample_rate = 0; | |
262 | ||
263 | sr_dev_inst *const sdi = get_selected_device(); | |
264 | assert(sdi); | |
265 | ||
266 | assert(_sample_rate_value_action); | |
267 | assert(_sample_rate_list_action); | |
268 | ||
269 | if (_sample_rate_value_action->isVisible()) | |
270 | sample_rate = (uint64_t)_sample_rate_value.value(); | |
271 | else if (_sample_rate_list_action->isVisible()) | |
272 | { | |
273 | const int index = _sample_rate_list.currentIndex(); | |
274 | if (index >= 0) | |
275 | sample_rate = _sample_rate_list.itemData( | |
276 | index).value<uint64_t>(); | |
277 | } | |
278 | ||
279 | if (sample_rate == 0) | |
280 | return; | |
281 | ||
282 | // Set the samplerate | |
283 | if (sr_config_set(sdi, SR_CONF_SAMPLERATE, | |
284 | g_variant_new_uint64(sample_rate)) != SR_OK) { | |
285 | qDebug() << "Failed to configure samplerate."; | |
286 | return; | |
287 | } | |
288 | } | |
289 | ||
290 | void SamplingBar::on_device_selected() | |
291 | { | |
292 | update_sample_rate_selector(); | |
293 | device_selected(); | |
294 | } | |
295 | ||
296 | void SamplingBar::on_sample_rate_changed() | |
297 | { | |
298 | commit_sample_rate(); | |
299 | } | |
300 | ||
301 | void SamplingBar::on_configure() | |
302 | { | |
303 | commit_sample_rate(); | |
304 | ||
305 | sr_dev_inst *const sdi = get_selected_device(); | |
306 | assert(sdi); | |
307 | ||
308 | pv::dialogs::DeviceOptions dlg(this, sdi); | |
309 | dlg.exec(); | |
310 | ||
311 | update_sample_rate_selector_value(); | |
312 | } | |
313 | ||
314 | void SamplingBar::on_run_stop() | |
315 | { | |
316 | commit_sample_rate(); | |
317 | run_stop(); | |
318 | } | |
319 | ||
320 | } // namespace toolbars | |
321 | } // namespace pv |