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