pv/dialogs/connect.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2012-2013 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 "connect.h"
  22
  23 extern "C" {
  24 /* __STDC_FORMAT_MACROS is required for PRIu64 and friends (in C++). */
  25 #define __STDC_FORMAT_MACROS
  26 #include <glib.h>
  27 #include <libsigrok/libsigrok.h>
  28 }
  29
  30 namespace pv {
  31 namespace dialogs {
  32
  33 Connect::Connect(QWidget *parent) :
  34         QDialog(parent),
  35         _layout(this),
  36         _form(this),
  37         _form_layout(&_form),
  38         _drivers(&_form),
  39         _serial_device(&_form),
  40         _button_box(QDialogButtonBox::Ok | QDialogButtonBox::Cancel,
  41                 Qt::Horizontal, this)
  42 {
  43         setWindowTitle(tr("Connect to Device"));
  44
  45         connect(&_button_box, SIGNAL(accepted()), this, SLOT(accept()));
  46         connect(&_button_box, SIGNAL(rejected()), this, SLOT(reject()));
  47
  48         populate_drivers();
  49         connect(&_drivers, SIGNAL(activated(int)),
  50                 this, SLOT(device_selected(int)));
  51
  52         _form.setLayout(&_form_layout);
  53         _form_layout.addRow(tr("Driver"), &_drivers);
  54
  55         _form_layout.addRow(tr("Serial Port"), &_serial_device);
  56
  57         unset_connection();
  58
  59         setLayout(&_layout);
  60         _layout.addWidget(&_form);
  61         _layout.addWidget(&_button_box);
  62 }
  63
  64 void Connect::populate_drivers()
  65 {
  66         const int *hwopts;
  67         struct sr_dev_driver **drivers = sr_driver_list();
  68         for (int i = 0; drivers[i]; ++i) {
  69                 /**
  70                  * We currently only support devices that can deliver
  71                  * samples at a fixed samplerate i.e. oscilloscopes and
  72                  * logic analysers.
  73                  * @todo Add support for non-monotonic devices i.e. DMMs
  74                  * and sensors.
  75                  */
  76                 bool supported_device = false;
  77                 if ((sr_config_list(drivers[i], SR_CONF_DEVICE_OPTIONS,
  78                         (const void **)&hwopts, NULL) == SR_OK) && hwopts)
  79                         for (int j = 0; hwopts[j]; j++)
  80                                 if(hwopts[j] == SR_CONF_SAMPLERATE) {
  81                                         supported_device = true;
  82                                         break;
  83                                 }
  84
  85                 if(supported_device)
  86                         _drivers.addItem(QString("%1 (%2)").arg(
  87                                 drivers[i]->longname).arg(drivers[i]->name),
  88                                 qVariantFromValue((void*)drivers[i]));
  89         }
  90 }
  91
  92 void Connect::device_selected(int index)
  93 {
  94         const int *hwopts;
  95         const struct sr_hwcap_option *hwo;
  96         sr_dev_driver *const driver = (sr_dev_driver*)_drivers.itemData(
  97                 index).value<void*>();
  98
  99         unset_connection();
 100
 101         if ((sr_config_list(driver, SR_CONF_SCAN_OPTIONS,
 102                 (const void **)&hwopts, NULL) == SR_OK) && hwopts) {
 103
 104                 for (int i = 0; hwopts[i]; i++) {
 105                         switch(hwopts[i]) {
 106                         case SR_CONF_SERIALCOMM:
 107                                 set_serial_connection();
 108                                 break;
 109
 110                         default:
 111                                 continue;
 112                         }
 113
 114                         break;
 115                 }
 116         }
 117 }
 118
 119 void Connect::unset_connection()
 120 {
 121         _serial_device.hide();
 122         _form_layout.labelForField(&_serial_device)->hide();
 123 }
 124
 125 void Connect::set_serial_connection()
 126 {
 127         _serial_device.show();
 128         _form_layout.labelForField(&_serial_device)->show();
 129 }
 130
 131
 132 } // namespace dialogs
 133 } // namespace pv