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Add serial_num/connection_id handling and save/restore last device
[pulseview.git] / pv / device / device.cpp
1 /*
2  * This file is part of the PulseView project.
3  *
4  * Copyright (C) 2014 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 <cassert>
22 #include <sstream>
23
24 #include <libsigrok/libsigrok.h>
25
26 #include "device.h"
27
28 using std::list;
29 using std::make_pair;
30 using std::map;
31 using std::ostringstream;
32 using std::string;
33
34 namespace pv {
35 namespace device {
36
37 Device::Device(sr_dev_inst *sdi) :
38         _sdi(sdi)
39 {
40         assert(_sdi);
41 }
42
43 sr_dev_inst* Device::dev_inst() const
44 {
45         return _sdi;
46 }
47
48 void Device::use(SigSession *owner) throw(QString)
49 {
50         DevInst::use(owner);
51
52         sr_session_new(&SigSession::_sr_session);
53
54         assert(_sdi);
55         sr_dev_open(_sdi);
56         if (sr_session_dev_add(SigSession::_sr_session, _sdi) != SR_OK)
57                 throw QString(tr("Failed to use device."));
58 }
59
60 void Device::release()
61 {
62         if (_owner) {
63                 DevInst::release();
64                 sr_session_destroy(SigSession::_sr_session);
65         }
66
67         sr_dev_close(_sdi);
68 }
69
70 std::string Device::format_device_title() const
71 {
72         ostringstream s;
73
74         assert(_sdi);
75
76         if (_sdi->vendor && _sdi->vendor[0])
77                 s << _sdi->vendor << " ";
78
79         if (_sdi->model && _sdi->model[0])
80                 s << _sdi->model << " ";
81
82         if (_sdi->version && _sdi->version[0])
83                 s << _sdi->version << " ";
84
85         // Show connection string only if no serial number is present.
86         if (_sdi->serial_num && _sdi->serial_num[0])
87                 s << "(" << _sdi->serial_num << ") ";
88         else if (_sdi->connection_id && _sdi->connection_id[0])
89                 s << "[" << _sdi->connection_id << "] ";
90
91         // Remove trailing space.
92         s.seekp(-1, std::ios_base::end);
93         s << std::ends;
94
95         return s.str();
96 }
97
98 map<string, string> Device::get_device_info() const
99 {
100         map<string, string> result;
101
102         assert(_sdi);
103
104         if (_sdi->vendor && _sdi->vendor[0])
105                 result.insert(make_pair("vendor", _sdi->vendor));
106
107         if (_sdi->model && _sdi->model[0])
108                 result.insert(make_pair("model", _sdi->model));
109
110         if (_sdi->version && _sdi->version[0])
111                 result.insert(make_pair("version", _sdi->version));
112
113         if (_sdi->serial_num && _sdi->serial_num[0])
114                 result.insert(make_pair("serial_num", _sdi->serial_num));
115
116         if (_sdi->connection_id && _sdi->connection_id[0])
117                 result.insert(make_pair("connection_id", _sdi->connection_id));
118
119         return result;
120 }
121
122 } // device
123 } // pv