pv/devices/hardwaredevice.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2015 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, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20 #include <boost/algorithm/string/join.hpp>
  21
  22 #include <QString>
  23
  24 #include <libsigrokcxx/libsigrokcxx.hpp>
  25
  26 #include <pv/devicemanager.hpp>
  27
  28 #include "hardwaredevice.hpp"
  29
  30 using std::shared_ptr;
  31 using std::static_pointer_cast;
  32 using std::string;
  33 using std::vector;
  34
  35 using boost::algorithm::join;
  36
  37 using sigrok::HardwareDevice;
  38
  39 namespace pv {
  40 namespace devices {
  41
  42 HardwareDevice::HardwareDevice(const shared_ptr<sigrok::Context> &context,
  43         shared_ptr<sigrok::HardwareDevice> device) :
  44         context_(context),
  45         device_open_(false)
  46 {
  47         device_ = device;
  48 }
  49
  50 HardwareDevice::~HardwareDevice()
  51 {
  52         close();
  53 }
  54
  55 string HardwareDevice::full_name() const
  56 {
  57         vector<string> parts = {device_->vendor(), device_->model(),
  58                 device_->version(), device_->serial_number()};
  59         if (device_->connection_id().length() > 0)
  60                 parts.push_back("(" + device_->connection_id() + ")");
  61         return join(parts, " ");
  62 }
  63
  64 shared_ptr<sigrok::HardwareDevice> HardwareDevice::hardware_device() const
  65 {
  66         return static_pointer_cast<sigrok::HardwareDevice>(device_);
  67 }
  68
  69 string HardwareDevice::display_name(
  70         const DeviceManager &device_manager) const
  71 {
  72         const auto hw_dev = hardware_device();
  73
  74         // If we can find another device with the same model/vendor then
  75         // we have at least two such devices and need to distinguish them.
  76         const auto &devices = device_manager.devices();
  77         const bool multiple_dev = hw_dev && any_of(
  78                 devices.begin(), devices.end(),
  79                 [&](shared_ptr<devices::HardwareDevice> dev) {
  80                         return dev->hardware_device()->vendor() ==
  81                                         hw_dev->vendor() &&
  82                                 dev->hardware_device()->model() ==
  83                                         hw_dev->model() &&
  84                                 dev->device_ != device_;
  85                 });
  86
  87         vector<string> parts = {device_->vendor(), device_->model()};
  88
  89         if (multiple_dev) {
  90                 parts.push_back(device_->version());
  91                 parts.push_back(device_->serial_number());
  92
  93                 if ((device_->serial_number().length() == 0) &&
  94                         (device_->connection_id().length() > 0))
  95                         parts.push_back("(" + device_->connection_id() + ")");
  96         }
  97
  98         return join(parts, " ");
  99 }
 100
 101 void HardwareDevice::open()
 102 {
 103         if (device_open_)
 104                 close();
 105
 106         try {
 107                 device_->open();
 108         } catch (const sigrok::Error &e) {
 109                 throw QString(e.what());
 110         }
 111
 112         device_open_ = true;
 113
 114         // Set up the session
 115         session_ = context_->create_session();
 116         session_->add_device(device_);
 117 }
 118
 119 void HardwareDevice::close()
 120 {
 121         if (device_open_)
 122                 device_->close();
 123
 124         if (session_)
 125                 session_->remove_devices();
 126
 127         device_open_ = false;
 128 }
 129
 130 } // namespace devices
 131 } // namespace pv