pv/samplingbar.cpp

   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 <assert.h>
  22
  23 #include <boost/foreach.hpp>
  24
  25 extern "C" {
  26 #include <libsigrok/libsigrok.h>
  27 }
  28
  29 #include <QAction>
  30
  31 #include "samplingbar.h"
  32
  33 #include <pv/dialogs/hwcap.h>
  34
  35 namespace pv {
  36
  37 const uint64_t SamplingBar::RecordLengths[11] = {
  38         1000000,
  39         2000000,
  40         5000000,
  41         10000000,
  42         25000000,
  43         50000000,
  44         100000000,
  45         250000000,
  46         500000000,
  47         1000000000,
  48         10000000000
  49 };
  50
  51 SamplingBar::SamplingBar(QWidget *parent) :
  52         QToolBar("Sampling Bar", parent),
  53         _device_selector(this),
  54         _configure_button(this),
  55         _record_length_selector(this),
  56         _sample_rate_list(this),
  57         _run_stop_button(this)
  58 {
  59         connect(&_run_stop_button, SIGNAL(clicked()),
  60                 this, SIGNAL(run_stop()));
  61         connect(&_device_selector, SIGNAL(currentIndexChanged (int)),
  62                 this, SLOT(on_device_selected()));
  63         connect(&_configure_button, SIGNAL(clicked()),
  64                 this, SLOT(configure()));
  65
  66         _sample_rate_value.setDecimals(0);
  67         _sample_rate_value.setSuffix("Hz");
  68
  69         BOOST_FOREACH(uint64_t l, RecordLengths)
  70         {
  71                 char *const text = sr_si_string_u64(l, " samples");
  72                 _record_length_selector.addItem(QString(text),
  73                         qVariantFromValue(l));
  74                 g_free(text);
  75         }
  76
  77         set_sampling(false);
  78
  79         _configure_button.setIcon(QIcon::fromTheme("configure",
  80                 QIcon(":/icons/configure.png")));
  81
  82         addWidget(&_device_selector);
  83         addWidget(&_configure_button);
  84         addWidget(&_record_length_selector);
  85         _sample_rate_list_action = addWidget(&_sample_rate_list);
  86         _sample_rate_value_action = addWidget(&_sample_rate_value);
  87         addWidget(&_run_stop_button);
  88
  89         update_device_selector();
  90         update_sample_rate_selector();
  91 }
  92
  93 struct sr_dev_inst* SamplingBar::get_selected_device() const
  94 {
  95         const int index = _device_selector.currentIndex();
  96         if (index < 0)
  97                 return NULL;
  98
  99         return (sr_dev_inst*)_device_selector.itemData(
 100                 index).value<void*>();
 101 }
 102
 103 uint64_t SamplingBar::get_record_length() const
 104 {
 105         const int index = _record_length_selector.currentIndex();
 106         if (index < 0)
 107                 return 0;
 108
 109         return _record_length_selector.itemData(index).value<uint64_t>();
 110 }
 111
 112 uint64_t SamplingBar::get_sample_rate() const
 113 {
 114         assert(_sample_rate_value_action);
 115         assert(_sample_rate_list_action);
 116
 117         if (_sample_rate_value_action->isVisible())
 118                 return (uint64_t)_sample_rate_value.value();
 119         else if (_sample_rate_list_action->isVisible())
 120         {
 121                 const int index = _sample_rate_list.currentIndex();
 122                 if (index < 0)
 123                         return 0;
 124
 125                 return _sample_rate_list.itemData(index).value<uint64_t>();
 126         }
 127
 128         return 0;
 129 }
 130
 131 void SamplingBar::set_sampling(bool sampling)
 132 {
 133         _run_stop_button.setText(sampling ? "Stop" : "Run");
 134 }
 135
 136 void SamplingBar::update_device_selector()
 137 {
 138         GSList *devices = NULL;
 139
 140         /* Scan all drivers for all devices. */
 141         struct sr_dev_driver **const drivers = sr_driver_list();
 142         for (struct sr_dev_driver **driver = drivers; *driver; driver++) {
 143                 GSList *tmpdevs = sr_driver_scan(*driver, NULL);
 144                 for (GSList *l = tmpdevs; l; l = l->next)
 145                         devices = g_slist_append(devices, l->data);
 146                 g_slist_free(tmpdevs);
 147         }
 148
 149         for (GSList *l = devices; l; l = l->next) {
 150                 sr_dev_inst *const sdi = (sr_dev_inst*)l->data;
 151
 152                 QString title;
 153                 if (sdi->vendor && sdi->vendor[0])
 154                         title += sdi->vendor + QString(" ");
 155                 if (sdi->model && sdi->model[0])
 156                         title += sdi->model + QString(" ");
 157                 if (sdi->version && sdi->version[0])
 158                         title += sdi->version + QString(" ");
 159
 160                 _device_selector.addItem(title, qVariantFromValue(
 161                         (void*)sdi));
 162         }
 163
 164         g_slist_free(devices);
 165 }
 166
 167 void SamplingBar::update_sample_rate_selector()
 168 {
 169         const sr_dev_inst *const sdi = get_selected_device();
 170         const struct sr_samplerates *samplerates;
 171
 172         assert(_sample_rate_value_action);
 173         assert(_sample_rate_list_action);
 174
 175         if (sr_info_get(sdi->driver, SR_DI_SAMPLERATES,
 176                 (const void **)&samplerates, sdi) != SR_OK)
 177                 return;
 178
 179         _sample_rate_list_action->setVisible(false);
 180         _sample_rate_value_action->setVisible(false);
 181
 182         if (samplerates->step)
 183         {
 184                 _sample_rate_value.setRange(
 185                         samplerates->low, samplerates->high);
 186                 _sample_rate_value.setSingleStep(samplerates->step);
 187                 _sample_rate_value_action->setVisible(true);
 188         }
 189         else
 190         {
 191                 _sample_rate_list.clear();
 192                 for (const uint64_t *rate = samplerates->list;
 193                      *rate; rate++)
 194                         _sample_rate_list.addItem(
 195                                 sr_samplerate_string(*rate),
 196                                 qVariantFromValue(*rate));
 197                 _sample_rate_list.show();
 198                 _sample_rate_list_action->setVisible(true);
 199         }
 200 }
 201
 202 void SamplingBar::on_device_selected()
 203 {
 204         update_sample_rate_selector();
 205 }
 206
 207 void SamplingBar::configure()
 208 {
 209         sr_dev_inst *const sdi = get_selected_device();
 210         assert(sdi);
 211
 212         pv::dialogs::HwCap dlg(this, sdi);
 213         dlg.exec();
 214 }
 215
 216 } // namespace pv