pv/binding/device.cpp

   1 /*
   2  * This file is part of the PulseView project.
   3  *
   4  * Copyright (C) 2012 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 <cstdint>
  21
  22 #include <QDebug>
  23
  24 #include "device.hpp"
  25
  26 #include <pv/prop/bool.hpp>
  27 #include <pv/prop/double.hpp>
  28 #include <pv/prop/enum.hpp>
  29 #include <pv/prop/int.hpp>
  30
  31 #include <libsigrokcxx/libsigrokcxx.hpp>
  32
  33 using boost::optional;
  34
  35 using std::function;
  36 using std::make_pair;
  37 using std::pair;
  38 using std::set;
  39 using std::shared_ptr;
  40 using std::string;
  41 using std::vector;
  42
  43 using sigrok::Capability;
  44 using sigrok::Configurable;
  45 using sigrok::ConfigKey;
  46 using sigrok::Error;
  47
  48 using pv::prop::Bool;
  49 using pv::prop::Double;
  50 using pv::prop::Enum;
  51 using pv::prop::Int;
  52 using pv::prop::Property;
  53
  54 namespace pv {
  55 namespace binding {
  56
  57 Device::Device(shared_ptr<sigrok::Configurable> configurable) :
  58         configurable_(configurable)
  59 {
  60
  61         auto keys = configurable->config_keys();
  62
  63         for (auto key : keys) {
  64
  65                 auto capabilities = configurable->config_capabilities(key);
  66
  67                 if (!capabilities.count(Capability::GET) ||
  68                         !capabilities.count(Capability::SET))
  69                         continue;
  70
  71                 string name_str;
  72                 try {
  73                         name_str = key->description();
  74                 } catch (Error e) {
  75                         name_str = key->name();
  76                 }
  77
  78                 const QString name = QString::fromStdString(name_str);
  79
  80                 const Property::Getter get = [&, key]() {
  81                         return configurable_->config_get(key); };
  82                 const Property::Setter set = [&, key](Glib::VariantBase value) {
  83                         configurable_->config_set(key, value);
  84                         config_changed();
  85                 };
  86
  87                 switch (key->id()) {
  88                 case SR_CONF_SAMPLERATE:
  89                         // Sample rate values are not bound because they are shown
  90                         // in the MainBar
  91                         break;
  92
  93                 case SR_CONF_CAPTURE_RATIO:
  94                         bind_int(name, "%", pair<int64_t, int64_t>(0, 100),
  95                                 get, set);
  96                         break;
  97
  98                 case SR_CONF_PATTERN_MODE:
  99                 case SR_CONF_BUFFERSIZE:
 100                 case SR_CONF_TRIGGER_SOURCE:
 101                 case SR_CONF_TRIGGER_SLOPE:
 102                 case SR_CONF_COUPLING:
 103                 case SR_CONF_CLOCK_EDGE:
 104                         bind_enum(name, key, capabilities, get, set);
 105                         break;
 106
 107                 case SR_CONF_FILTER:
 108                 case SR_CONF_EXTERNAL_CLOCK:
 109                 case SR_CONF_RLE:
 110                 case SR_CONF_POWER_OFF:
 111                         bind_bool(name, get, set);
 112                         break;
 113
 114                 case SR_CONF_TIMEBASE:
 115                         bind_enum(name, key, capabilities, get, set, print_timebase);
 116                         break;
 117
 118                 case SR_CONF_VDIV:
 119                         bind_enum(name, key, capabilities, get, set, print_vdiv);
 120                         break;
 121
 122                 case SR_CONF_VOLTAGE_THRESHOLD:
 123                         bind_enum(name, key, capabilities, get, set, print_voltage_threshold);
 124                         break;
 125
 126                 case SR_CONF_PROBE_FACTOR:
 127                         if (capabilities.count(Capability::LIST))
 128                                 bind_enum(name, key, capabilities, get, set, print_probe_factor);
 129                         else
 130                                 bind_int(name, "", pair<int64_t, int64_t>(1, 500), get, set);
 131                         break;
 132
 133                 default:
 134                         break;
 135                 }
 136         }
 137 }
 138
 139 void Device::bind_bool(const QString &name,
 140         Property::Getter getter, Property::Setter setter)
 141 {
 142         assert(configurable_);
 143         properties_.push_back(shared_ptr<Property>(new Bool(
 144                 name, getter, setter)));
 145 }
 146
 147 void Device::bind_enum(const QString &name,
 148         const ConfigKey *key, set<const Capability *> capabilities,
 149         Property::Getter getter,
 150         Property::Setter setter, function<QString (Glib::VariantBase)> printer)
 151 {
 152         Glib::VariantBase gvar;
 153         vector< pair<Glib::VariantBase, QString> > values;
 154
 155         assert(configurable_);
 156
 157         if (!capabilities.count(Capability::LIST))
 158                 return;
 159
 160         Glib::VariantIter iter(configurable_->config_list(key));
 161         while ((iter.next_value(gvar)))
 162                 values.push_back(make_pair(gvar, printer(gvar)));
 163
 164         properties_.push_back(shared_ptr<Property>(new Enum(name, values,
 165                 getter, setter)));
 166 }
 167
 168 void Device::bind_int(const QString &name, QString suffix,
 169         optional< pair<int64_t, int64_t> > range,
 170         Property::Getter getter, Property::Setter setter)
 171 {
 172         assert(configurable_);
 173
 174         properties_.push_back(shared_ptr<Property>(new Int(name, suffix, range,
 175                 getter, setter)));
 176 }
 177
 178 QString Device::print_timebase(Glib::VariantBase gvar)
 179 {
 180         uint64_t p, q;
 181         g_variant_get(gvar.gobj(), "(tt)", &p, &q);
 182         return QString::fromUtf8(sr_period_string(p, q));
 183 }
 184
 185 QString Device::print_vdiv(Glib::VariantBase gvar)
 186 {
 187         uint64_t p, q;
 188         g_variant_get(gvar.gobj(), "(tt)", &p, &q);
 189         return QString::fromUtf8(sr_voltage_string(p, q));
 190 }
 191
 192 QString Device::print_voltage_threshold(Glib::VariantBase gvar)
 193 {
 194         gdouble lo, hi;
 195         g_variant_get(gvar.gobj(), "(dd)", &lo, &hi);
 196         return QString("L<%1V H>%2V").arg(lo, 0, 'f', 1).arg(hi, 0, 'f', 1);
 197 }
 198
 199 QString Device::print_probe_factor(Glib::VariantBase gvar)
 200 {
 201         uint64_t factor;
 202         factor = g_variant_get_uint64(gvar.gobj());
 203         return QString("%1x").arg(factor);
 204 }
 205
 206 } // binding
 207 } // pv