pv/prop/binding/deviceoptions.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, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #include <boost/bind.hpp>
  22
  23 #include <stdint.h>
  24
  25 #include <QDebug>
  26
  27 #include "deviceoptions.h"
  28
  29 #include <pv/device/devinst.h>
  30 #include <pv/prop/bool.h>
  31 #include <pv/prop/double.h>
  32 #include <pv/prop/enum.h>
  33 #include <pv/prop/int.h>
  34
  35 #include <libsigrok/libsigrok.h>
  36
  37 using boost::bind;
  38 using boost::function;
  39 using boost::optional;
  40 using std::make_pair;
  41 using std::pair;
  42 using std::shared_ptr;
  43 using std::string;
  44 using std::vector;
  45
  46 namespace pv {
  47 namespace prop {
  48 namespace binding {
  49
  50 DeviceOptions::DeviceOptions(shared_ptr<pv::device::DevInst> dev_inst,
  51         const sr_channel_group *group) :
  52         _dev_inst(dev_inst),
  53         _group(group)
  54 {
  55         assert(dev_inst);
  56
  57         GVariant *gvar_opts;
  58         gsize num_opts;
  59
  60         if (!(gvar_opts = dev_inst->list_config(group, SR_CONF_DEVICE_OPTIONS)))
  61                 /* Driver supports no device instance options. */
  62                 return;
  63
  64         const int *const options = (const int32_t *)g_variant_get_fixed_array(
  65                 gvar_opts, &num_opts, sizeof(int32_t));
  66         for (unsigned int i = 0; i < num_opts; i++) {
  67                 const struct sr_config_info *const info =
  68                         sr_config_info_get(options[i]);
  69
  70                 if (!info)
  71                         continue;
  72
  73                 const int key = info->key;
  74                 GVariant *const gvar_list = dev_inst->list_config(group, key);
  75
  76                 const QString name = QString::fromUtf8(info->name);
  77
  78                 switch(key)
  79                 {
  80                 case SR_CONF_SAMPLERATE:
  81                         // Sample rate values are not bound because they are shown
  82                         // in the SamplingBar
  83                         break;
  84
  85                 case SR_CONF_CAPTURE_RATIO:
  86                         bind_int(name, key, "%", pair<int64_t, int64_t>(0, 100));
  87                         break;
  88
  89                 case SR_CONF_PATTERN_MODE:
  90                 case SR_CONF_BUFFERSIZE:
  91                 case SR_CONF_TRIGGER_SOURCE:
  92                 case SR_CONF_TRIGGER_SLOPE:
  93                 case SR_CONF_FILTER:
  94                 case SR_CONF_COUPLING:
  95                 case SR_CONF_CLOCK_EDGE:
  96                         bind_enum(name, key, gvar_list);
  97                         break;
  98
  99                 case SR_CONF_EXTERNAL_CLOCK:
 100                 case SR_CONF_RLE:
 101                         bind_bool(name, key);
 102                         break;
 103
 104                 case SR_CONF_TIMEBASE:
 105                         bind_enum(name, key, gvar_list, print_timebase);
 106                         break;
 107
 108                 case SR_CONF_VDIV:
 109                         bind_enum(name, key, gvar_list, print_vdiv);
 110                         break;
 111
 112                 case SR_CONF_VOLTAGE_THRESHOLD:
 113                         bind_enum(name, key, gvar_list, print_voltage_threshold);
 114                         break;
 115                 }
 116
 117                 if (gvar_list)
 118                         g_variant_unref(gvar_list);
 119         }
 120         g_variant_unref(gvar_opts);
 121 }
 122
 123 void DeviceOptions::bind_bool(const QString &name, int key)
 124 {
 125         assert(_dev_inst);
 126         _properties.push_back(shared_ptr<Property>(new Bool(name,
 127                 bind(&device::DevInst::get_config, _dev_inst, _group, key),
 128                 bind(&device::DevInst::set_config, _dev_inst,
 129                         _group, key, _1))));
 130 }
 131
 132 void DeviceOptions::bind_enum(const QString &name, int key,
 133         GVariant *const gvar_list, function<QString (GVariant*)> printer)
 134 {
 135         GVariant *gvar;
 136         GVariantIter iter;
 137         vector< pair<GVariant*, QString> > values;
 138
 139         assert(_dev_inst);
 140         if (!gvar_list) {
 141                 qDebug() << "Config key " << key << " was listed, but no "
 142                         "options were given";
 143                 return;
 144         }
 145
 146         g_variant_iter_init (&iter, gvar_list);
 147         while ((gvar = g_variant_iter_next_value (&iter)))
 148                 values.push_back(make_pair(gvar, printer(gvar)));
 149
 150         _properties.push_back(shared_ptr<Property>(new Enum(name, values,
 151                 bind(&device::DevInst::get_config, _dev_inst, _group, key),
 152                 bind(&device::DevInst::set_config, _dev_inst,
 153                         _group, key, _1))));
 154 }
 155
 156 void DeviceOptions::bind_int(const QString &name, int key, QString suffix,
 157         optional< std::pair<int64_t, int64_t> > range)
 158 {
 159         assert(_dev_inst);
 160
 161         _properties.push_back(shared_ptr<Property>(new Int(name, suffix, range,
 162                 bind(&device::DevInst::get_config, _dev_inst, _group, key),
 163                 bind(&device::DevInst::set_config, _dev_inst, _group, key, _1))));
 164 }
 165
 166 QString DeviceOptions::print_timebase(GVariant *const gvar)
 167 {
 168         uint64_t p, q;
 169         g_variant_get(gvar, "(tt)", &p, &q);
 170         return QString::fromUtf8(sr_period_string(p * q));
 171 }
 172
 173 QString DeviceOptions::print_vdiv(GVariant *const gvar)
 174 {
 175         uint64_t p, q;
 176         g_variant_get(gvar, "(tt)", &p, &q);
 177         return QString::fromUtf8(sr_voltage_string(p, q));
 178 }
 179
 180 QString DeviceOptions::print_voltage_threshold(GVariant *const gvar)
 181 {
 182         gdouble lo, hi;
 183         char buf[64];
 184         g_variant_get(gvar, "(dd)", &lo, &hi);
 185         snprintf(buf, sizeof(buf), "L<%.1fV H>%.1fV", lo, hi);
 186         return QString::fromUtf8(buf);
 187 }
 188
 189 } // binding
 190 } // prop
 191 } // pv
 192