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