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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, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include "devicemanager.h" | |
22 | #include "sigsession.h" | |
23 | ||
24 | #include <cassert> | |
25 | #include <stdexcept> | |
26 | #include <sstream> | |
27 | #include <string> | |
28 | #include <vector> | |
29 | ||
30 | #include <libsigrok/libsigrok.hpp> | |
31 | ||
32 | #include <boost/filesystem.hpp> | |
33 | ||
34 | using std::dynamic_pointer_cast; | |
35 | using std::list; | |
36 | using std::map; | |
37 | using std::ostringstream; | |
38 | using std::remove_if; | |
39 | using std::runtime_error; | |
40 | using std::shared_ptr; | |
41 | using std::string; | |
42 | using std::vector; | |
43 | ||
44 | using Glib::VariantBase; | |
45 | ||
46 | using sigrok::ConfigKey; | |
47 | using sigrok::Context; | |
48 | using sigrok::Driver; | |
49 | using sigrok::Device; | |
50 | using sigrok::HardwareDevice; | |
51 | using sigrok::SessionDevice; | |
52 | ||
53 | namespace pv { | |
54 | ||
55 | DeviceManager::DeviceManager(shared_ptr<Context> context) : | |
56 | _context(context) | |
57 | { | |
58 | for (auto entry : context->drivers()) | |
59 | driver_scan(entry.second, map<const ConfigKey *, VariantBase>()); | |
60 | } | |
61 | ||
62 | DeviceManager::~DeviceManager() | |
63 | { | |
64 | } | |
65 | ||
66 | shared_ptr<Context> DeviceManager::context() | |
67 | { | |
68 | return _context; | |
69 | } | |
70 | ||
71 | const list< shared_ptr<HardwareDevice> >& DeviceManager::devices() const | |
72 | { | |
73 | return _devices; | |
74 | } | |
75 | ||
76 | list< shared_ptr<HardwareDevice> > DeviceManager::driver_scan( | |
77 | shared_ptr<Driver> driver, map<const ConfigKey *, VariantBase> drvopts) | |
78 | { | |
79 | list< shared_ptr<HardwareDevice> > driver_devices; | |
80 | ||
81 | assert(driver); | |
82 | ||
83 | // Remove any device instances from this driver from the device | |
84 | // list. They will not be valid after the scan. | |
85 | remove_if(_devices.begin(), _devices.end(), | |
86 | [&](shared_ptr<HardwareDevice> device) { | |
87 | return device->driver() == driver; }); | |
88 | ||
89 | // Do the scan | |
90 | auto devices = driver->scan(drvopts); | |
91 | driver_devices.insert(driver_devices.end(), devices.begin(), devices.end()); | |
92 | driver_devices.sort(compare_devices); | |
93 | ||
94 | // Add the scanned devices to the main list | |
95 | _devices.insert(_devices.end(), driver_devices.begin(), | |
96 | driver_devices.end()); | |
97 | _devices.sort(compare_devices); | |
98 | ||
99 | return driver_devices; | |
100 | } | |
101 | ||
102 | const map<string, string> DeviceManager::get_device_info( | |
103 | shared_ptr<Device> device) | |
104 | { | |
105 | map<string, string> result; | |
106 | ||
107 | assert(device); | |
108 | ||
109 | if (device->vendor().length() > 0) | |
110 | result["vendor"] = device->vendor(); | |
111 | if (device->model().length() > 0) | |
112 | result["model"] = device->model(); | |
113 | if (device->version().length() > 0) | |
114 | result["version"] = device->version(); | |
115 | if (device->serial_number().length() > 0) | |
116 | result["serial_num"] = device->serial_number(); | |
117 | if (device->connection_id().length() > 0) | |
118 | result["connection_id"] = device->connection_id(); | |
119 | ||
120 | return result; | |
121 | } | |
122 | ||
123 | const shared_ptr<HardwareDevice> DeviceManager::find_device_from_info( | |
124 | const map<string, string> search_info) | |
125 | { | |
126 | shared_ptr<HardwareDevice> last_resort_dev; | |
127 | map<string, string> dev_info; | |
128 | ||
129 | last_resort_dev = NULL; | |
130 | ||
131 | for (shared_ptr<HardwareDevice> dev : _devices) { | |
132 | assert(dev); | |
133 | dev_info = get_device_info(dev); | |
134 | ||
135 | // If present, vendor and model always have to match. | |
136 | if (dev_info.count("vendor") > 0 && search_info.count("vendor") > 0) | |
137 | if (dev_info.at("vendor") != search_info.at("vendor")) continue; | |
138 | ||
139 | if (dev_info.count("model") > 0 && search_info.count("model") > 0) | |
140 | if (dev_info.at("model") != search_info.at("model")) continue; | |
141 | ||
142 | // Most unique match: vendor/model/serial_num (but don't match a S/N of 0) | |
143 | if ((dev_info.count("serial_num") > 0) && (dev_info.at("serial_num") != "0") | |
144 | && search_info.count("serial_num") > 0) | |
145 | if (dev_info.at("serial_num") == search_info.at("serial_num") && | |
146 | dev_info.at("serial_num") != "0") | |
147 | return dev; | |
148 | ||
149 | // Second best match: vendor/model/connection_id | |
150 | if (dev_info.count("connection_id") > 0 && | |
151 | search_info.count("connection_id") > 0) | |
152 | if (dev_info.at("connection_id") == search_info.at("connection_id")) | |
153 | return dev; | |
154 | ||
155 | // Last resort: vendor/model/version | |
156 | if (dev_info.count("version") > 0 && | |
157 | search_info.count("version") > 0) | |
158 | if (dev_info.at("version") == search_info.at("version") && | |
159 | dev_info.at("version") != "0") | |
160 | return dev; | |
161 | ||
162 | // For this device, we merely have a vendor/model match. | |
163 | last_resort_dev = dev; | |
164 | } | |
165 | ||
166 | // If there wasn't even a vendor/model/version match, we end up here. | |
167 | // This is usually the case for devices with only vendor/model data. | |
168 | // The selected device may be wrong with multiple such devices attached | |
169 | // but it is the best we can do at this point. After all, there may be | |
170 | // only one such device and we do want to select it in this case. | |
171 | return last_resort_dev; | |
172 | } | |
173 | ||
174 | string DeviceManager::device_description(shared_ptr<Device> device) | |
175 | { | |
176 | auto session_device = dynamic_pointer_cast<SessionDevice>(device); | |
177 | ||
178 | if (session_device) | |
179 | return boost::filesystem::path( | |
180 | session_device->parent()->filename()).filename().string(); | |
181 | ||
182 | ostringstream s; | |
183 | ||
184 | vector<string> parts = {device->vendor(), device->model(), | |
185 | device->version(), device->serial_number()}; | |
186 | ||
187 | for (size_t i = 0; i < parts.size(); i++) | |
188 | { | |
189 | if (parts[i].length() > 0) | |
190 | { | |
191 | if (i != 0) | |
192 | s << " "; | |
193 | s << parts[i]; | |
194 | } | |
195 | } | |
196 | ||
197 | if (device->serial_number().length() == 0 && | |
198 | device->connection_id().length() > 0) | |
199 | s << " " << device->connection_id(); | |
200 | ||
201 | return s.str(); | |
202 | } | |
203 | ||
204 | bool DeviceManager::compare_devices(shared_ptr<HardwareDevice> a, | |
205 | shared_ptr<HardwareDevice> b) | |
206 | { | |
207 | assert(a); | |
208 | assert(b); | |
209 | ||
210 | return device_description(a).compare(device_description(b)) < 0; | |
211 | } | |
212 | ||
213 | } // namespace pv |