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1 | /* | |
2 | * This file is part of the PulseView project. | |
3 | * | |
4 | * Copyright (C) 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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include "devicemanager.hpp" | |
21 | #include "session.hpp" | |
22 | ||
23 | #include <cassert> | |
24 | #include <functional> | |
25 | #include <sstream> | |
26 | #include <stdexcept> | |
27 | #include <string> | |
28 | ||
29 | #include <libsigrokcxx/libsigrokcxx.hpp> | |
30 | ||
31 | #include <boost/filesystem.hpp> | |
32 | ||
33 | #include <pv/devices/hardwaredevice.hpp> | |
34 | ||
35 | using std::bind; | |
36 | using std::list; | |
37 | using std::map; | |
38 | using std::placeholders::_1; | |
39 | using std::placeholders::_2; | |
40 | using std::shared_ptr; | |
41 | using std::string; | |
42 | ||
43 | using Glib::VariantBase; | |
44 | ||
45 | using sigrok::ConfigKey; | |
46 | using sigrok::Context; | |
47 | using sigrok::Driver; | |
48 | ||
49 | namespace pv { | |
50 | ||
51 | DeviceManager::DeviceManager(shared_ptr<Context> context) : | |
52 | context_(context) | |
53 | { | |
54 | for (auto entry : context->drivers()) | |
55 | driver_scan(entry.second, map<const ConfigKey *, VariantBase>()); | |
56 | } | |
57 | ||
58 | const shared_ptr<sigrok::Context>& DeviceManager::context() const | |
59 | { | |
60 | return context_; | |
61 | } | |
62 | ||
63 | shared_ptr<Context> DeviceManager::context() | |
64 | { | |
65 | return context_; | |
66 | } | |
67 | ||
68 | const list< shared_ptr<devices::HardwareDevice> >& | |
69 | DeviceManager::devices() const | |
70 | { | |
71 | return devices_; | |
72 | } | |
73 | ||
74 | list< shared_ptr<devices::HardwareDevice> > | |
75 | DeviceManager::driver_scan( | |
76 | shared_ptr<Driver> driver, map<const ConfigKey *, VariantBase> drvopts) | |
77 | { | |
78 | list< shared_ptr<devices::HardwareDevice> > driver_devices; | |
79 | ||
80 | assert(driver); | |
81 | ||
82 | // Remove any device instances from this driver from the device | |
83 | // list. They will not be valid after the scan. | |
84 | devices_.remove_if([&](shared_ptr<devices::HardwareDevice> device) { | |
85 | return device->hardware_device()->driver() == driver; }); | |
86 | ||
87 | // Do the scan | |
88 | auto devices = driver->scan(drvopts); | |
89 | ||
90 | // Add the scanned devices to the main list, set display names and sort. | |
91 | for (shared_ptr<sigrok::HardwareDevice> device : devices) { | |
92 | const shared_ptr<devices::HardwareDevice> d( | |
93 | new devices::HardwareDevice(context_, device)); | |
94 | driver_devices.push_back(d); | |
95 | } | |
96 | ||
97 | devices_.insert(devices_.end(), driver_devices.begin(), | |
98 | driver_devices.end()); | |
99 | devices_.sort(bind(&DeviceManager::compare_devices, this, _1, _2)); | |
100 | driver_devices.sort(bind( | |
101 | &DeviceManager::compare_devices, this, _1, _2)); | |
102 | ||
103 | return driver_devices; | |
104 | } | |
105 | ||
106 | const map<string, string> DeviceManager::get_device_info( | |
107 | shared_ptr<devices::Device> device) | |
108 | { | |
109 | map<string, string> result; | |
110 | ||
111 | assert(device); | |
112 | ||
113 | const shared_ptr<sigrok::Device> sr_dev = device->device(); | |
114 | if (sr_dev->vendor().length() > 0) | |
115 | result["vendor"] = sr_dev->vendor(); | |
116 | if (sr_dev->model().length() > 0) | |
117 | result["model"] = sr_dev->model(); | |
118 | if (sr_dev->version().length() > 0) | |
119 | result["version"] = sr_dev->version(); | |
120 | if (sr_dev->serial_number().length() > 0) | |
121 | result["serial_num"] = sr_dev->serial_number(); | |
122 | if (sr_dev->connection_id().length() > 0) | |
123 | result["connection_id"] = sr_dev->connection_id(); | |
124 | ||
125 | return result; | |
126 | } | |
127 | ||
128 | const shared_ptr<devices::HardwareDevice> DeviceManager::find_device_from_info( | |
129 | const map<string, string> search_info) | |
130 | { | |
131 | shared_ptr<devices::HardwareDevice> last_resort_dev; | |
132 | map<string, string> dev_info; | |
133 | ||
134 | for (shared_ptr<devices::HardwareDevice> dev : devices_) { | |
135 | assert(dev); | |
136 | dev_info = get_device_info(dev); | |
137 | ||
138 | // If present, vendor and model always have to match. | |
139 | if (dev_info.count("vendor") > 0 && search_info.count("vendor") > 0) | |
140 | if (dev_info.at("vendor") != search_info.at("vendor")) | |
141 | continue; | |
142 | ||
143 | if (dev_info.count("model") > 0 && search_info.count("model") > 0) | |
144 | if (dev_info.at("model") != search_info.at("model")) | |
145 | continue; | |
146 | ||
147 | // Most unique match: vendor/model/serial_num (but don't match a S/N of 0) | |
148 | if ((dev_info.count("serial_num") > 0) && (dev_info.at("serial_num") != "0") | |
149 | && search_info.count("serial_num") > 0) | |
150 | if (dev_info.at("serial_num") == search_info.at("serial_num") && | |
151 | dev_info.at("serial_num") != "0") | |
152 | return dev; | |
153 | ||
154 | // Second best match: vendor/model/connection_id | |
155 | if (dev_info.count("connection_id") > 0 && | |
156 | search_info.count("connection_id") > 0) | |
157 | if (dev_info.at("connection_id") == search_info.at("connection_id")) | |
158 | return dev; | |
159 | ||
160 | // Last resort: vendor/model/version | |
161 | if (dev_info.count("version") > 0 && | |
162 | search_info.count("version") > 0) | |
163 | if (dev_info.at("version") == search_info.at("version") && | |
164 | dev_info.at("version") != "0") | |
165 | return dev; | |
166 | ||
167 | // For this device, we merely have a vendor/model match. | |
168 | last_resort_dev = dev; | |
169 | } | |
170 | ||
171 | // If there wasn't even a vendor/model/version match, we end up here. | |
172 | // This is usually the case for devices with only vendor/model data. | |
173 | // The selected device may be wrong with multiple such devices attached | |
174 | // but it is the best we can do at this point. After all, there may be | |
175 | // only one such device and we do want to select it in this case. | |
176 | return last_resort_dev; | |
177 | } | |
178 | ||
179 | bool DeviceManager::compare_devices(shared_ptr<devices::Device> a, | |
180 | shared_ptr<devices::Device> b) | |
181 | { | |
182 | assert(a); | |
183 | assert(b); | |
184 | return a->display_name(*this).compare(b->display_name(*this)) < 0; | |
185 | } | |
186 | ||
187 | } // namespace pv |