Fix #404 by only saving enabled signals
[pulseview.git] / 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, write to the Free Software
18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
19  */
20
21 #include <boost/algorithm/string/join.hpp>
22
23 #include <QString>
24
25 #include <libsigrokcxx/libsigrokcxx.hpp>
26
27 #include <pv/devicemanager.hpp>
28
29 #include "hardwaredevice.hpp"
30
31 using std::dynamic_pointer_cast;
32 using std::shared_ptr;
33 using std::static_pointer_cast;
34 using std::string;
35 using std::vector;
36
37 using boost::algorithm::join;
38
39 using sigrok::HardwareDevice;
40
41 namespace pv {
42 namespace devices {
43
44 HardwareDevice::HardwareDevice(const std::shared_ptr<sigrok::Context> &context,
45         std::shared_ptr<sigrok::HardwareDevice> device) :
46         context_(context),
47         device_open_(false) {
48         device_ = device;
49 }
50
51 HardwareDevice::~HardwareDevice() {
52         if (device_open_)
53                 device_->close();
54
55         if (session_)
56                 session_->remove_devices();
57 }
58
59 string HardwareDevice::full_name() const {
60         vector<string> parts = {device_->vendor(), device_->model(),
61                 device_->version(), device_->serial_number()};
62         if (device_->connection_id().length() > 0)
63                 parts.push_back("(" + device_->connection_id() + ")");
64         return join(parts, " ");
65 }
66
67 shared_ptr<sigrok::HardwareDevice> HardwareDevice::hardware_device() const {
68         return static_pointer_cast<sigrok::HardwareDevice>(device_);
69 }
70
71 string HardwareDevice::display_name(
72         const DeviceManager &device_manager) const {
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::create() {
103         // Open the device
104         try {
105                 device_->open();
106         } catch(const sigrok::Error &e) {
107                 throw QString(e.what());
108         }
109
110         device_open_ = true;
111
112         // Set up the session
113         session_ = context_->create_session();
114         session_->add_device(device_);
115 }
116
117 } // namespace devices
118 } // namespace pv