]>
Commit | Line | Data |
---|---|---|
107ca6d3 JH |
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" | |
921b90c0 | 22 | #include "device/device.h" |
dc0867ff | 23 | #include "sigsession.h" |
107ca6d3 JH |
24 | |
25 | #include <cassert> | |
107ca6d3 JH |
26 | #include <stdexcept> |
27 | #include <string> | |
28 | ||
29 | #include <libsigrok/libsigrok.h> | |
30 | ||
819f4c25 JH |
31 | using std::list; |
32 | using std::map; | |
33 | using std::ostringstream; | |
34 | using std::runtime_error; | |
f9abf97e | 35 | using std::shared_ptr; |
819f4c25 | 36 | using std::string; |
107ca6d3 JH |
37 | |
38 | namespace pv { | |
39 | ||
40 | DeviceManager::DeviceManager(struct sr_context *sr_ctx) : | |
41 | _sr_ctx(sr_ctx) | |
42 | { | |
43 | init_drivers(); | |
44 | scan_all_drivers(); | |
45 | } | |
46 | ||
47 | DeviceManager::~DeviceManager() | |
48 | { | |
49 | release_devices(); | |
50 | } | |
51 | ||
85843b14 | 52 | const list< shared_ptr<pv::device::Device> >& DeviceManager::devices() const |
107ca6d3 JH |
53 | { |
54 | return _devices; | |
55 | } | |
56 | ||
85843b14 | 57 | list< shared_ptr<device::Device> > DeviceManager::driver_scan( |
107ca6d3 JH |
58 | struct sr_dev_driver *const driver, GSList *const drvopts) |
59 | { | |
85843b14 | 60 | list< shared_ptr<device::Device> > driver_devices; |
107ca6d3 JH |
61 | |
62 | assert(driver); | |
63 | ||
64 | // Remove any device instances from this driver from the device | |
65 | // list. They will not be valid after the scan. | |
f46e495e | 66 | auto i = _devices.begin(); |
107ca6d3 | 67 | while (i != _devices.end()) { |
19adbc2c | 68 | if ((*i)->dev_inst()->driver == driver) |
107ca6d3 JH |
69 | i = _devices.erase(i); |
70 | else | |
71 | i++; | |
72 | } | |
73 | ||
dc0867ff JH |
74 | // Release this driver and all it's attached devices |
75 | release_driver(driver); | |
107ca6d3 JH |
76 | |
77 | // Do the scan | |
78 | GSList *const devices = sr_driver_scan(driver, drvopts); | |
79 | for (GSList *l = devices; l; l = l->next) | |
85843b14 | 80 | driver_devices.push_back(shared_ptr<device::Device>( |
921b90c0 | 81 | new device::Device((sr_dev_inst*)l->data))); |
107ca6d3 JH |
82 | g_slist_free(devices); |
83 | driver_devices.sort(compare_devices); | |
84 | ||
85 | // Add the scanned devices to the main list | |
86 | _devices.insert(_devices.end(), driver_devices.begin(), | |
87 | driver_devices.end()); | |
88 | _devices.sort(compare_devices); | |
89 | ||
90 | return driver_devices; | |
91 | } | |
92 | ||
93 | void DeviceManager::init_drivers() | |
94 | { | |
95 | // Initialise all libsigrok drivers | |
96 | sr_dev_driver **const drivers = sr_driver_list(); | |
97 | for (sr_dev_driver **driver = drivers; *driver; driver++) { | |
98 | if (sr_driver_init(_sr_ctx, *driver) != SR_OK) { | |
99 | throw runtime_error( | |
100 | string("Failed to initialize driver ") + | |
101 | string((*driver)->name)); | |
102 | } | |
103 | } | |
104 | } | |
105 | ||
106 | void DeviceManager::release_devices() | |
107 | { | |
dc0867ff | 108 | // Release all the used devices |
d9aecf1f | 109 | for (shared_ptr<device::Device> dev : _devices) { |
996b7c9d JH |
110 | assert(dev); |
111 | dev->release(); | |
112 | } | |
dc0867ff JH |
113 | |
114 | // Clear all the drivers | |
107ca6d3 JH |
115 | sr_dev_driver **const drivers = sr_driver_list(); |
116 | for (sr_dev_driver **driver = drivers; *driver; driver++) | |
117 | sr_dev_clear(*driver); | |
118 | } | |
119 | ||
120 | void DeviceManager::scan_all_drivers() | |
121 | { | |
122 | // Scan all drivers for all devices. | |
123 | struct sr_dev_driver **const drivers = sr_driver_list(); | |
124 | for (struct sr_dev_driver **driver = drivers; *driver; driver++) | |
125 | driver_scan(*driver); | |
126 | } | |
127 | ||
dc0867ff JH |
128 | void DeviceManager::release_driver(struct sr_dev_driver *const driver) |
129 | { | |
d9aecf1f | 130 | for (shared_ptr<device::Device> dev : _devices) { |
996b7c9d JH |
131 | assert(dev); |
132 | if(dev->dev_inst()->driver == driver) | |
133 | dev->release(); | |
134 | } | |
dc0867ff JH |
135 | |
136 | // Clear all the old device instances from this driver | |
137 | sr_dev_clear(driver); | |
138 | } | |
139 | ||
85843b14 JH |
140 | bool DeviceManager::compare_devices(shared_ptr<device::Device> a, |
141 | shared_ptr<device::Device> b) | |
107ca6d3 | 142 | { |
19adbc2c JH |
143 | assert(a); |
144 | assert(b); | |
145 | return a->format_device_title().compare(b->format_device_title()) < 0; | |
107ca6d3 JH |
146 | } |
147 | ||
148 | } // namespace pv |