pv/prop/binding/hwcap.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 "hwcap.h"
  24
  25 #include <pv/prop/enum.h>
  26
  27 using namespace boost;
  28 using namespace std;
  29
  30 namespace pv {
  31 namespace prop {
  32 namespace binding {
  33
  34 HwCap::HwCap(struct sr_dev_inst *sdi) :
  35         _sdi(sdi)
  36 {
  37         const int *options;
  38
  39         if ((sr_config_list(sdi->driver, SR_CONF_DEVICE_OPTIONS,
  40                 (const void **)&options, sdi) != SR_OK) || !options)
  41                 /* Driver supports no device instance options. */
  42                 return;
  43
  44         for (int cap = 0; options[cap]; cap++) {
  45                 const struct sr_config_info *const info =
  46                         sr_config_info_get(options[cap]);
  47
  48                 if (!info)
  49                         continue;
  50
  51                 switch(info->key)
  52                 {
  53                 case SR_CONF_PATTERN_MODE:
  54                         bind_stropt(info, SR_CONF_PATTERN_MODE);
  55                         break;
  56
  57                 case SR_CONF_BUFFERSIZE:
  58                         bind_buffer_size(info);
  59                         break;
  60
  61                 case SR_CONF_TIMEBASE:
  62                         bind_time_base(info);
  63                         break;
  64
  65                 case SR_CONF_TRIGGER_SOURCE:
  66                         bind_stropt(info, SR_CONF_TRIGGER_SOURCE);
  67                         break;
  68
  69                 case SR_CONF_FILTER:
  70                         bind_stropt(info, SR_CONF_FILTER);
  71                         break;
  72
  73                 case SR_CONF_VDIV:
  74                         bind_vdiv(info);
  75                         break;
  76
  77                 case SR_CONF_COUPLING:
  78                         bind_stropt(info, SR_CONF_FILTER);
  79                         break;
  80                 }
  81         }
  82 }
  83
  84 void HwCap::expose_enum(const struct sr_config_info *info,
  85         const vector< pair<const void*, QString> > &values, int key)
  86 {
  87         _properties.push_back(shared_ptr<Property>(
  88                 new Enum(QString(info->name), values,
  89                         function<const void* ()>(),
  90                         bind(sr_config_set, _sdi, key, _1))));
  91 }
  92
  93 void HwCap::bind_stropt(const struct sr_config_info *info, int key)
  94 {
  95         const char **stropts;
  96         if (sr_config_list(_sdi->driver, key,
  97                 (const void **)&stropts, _sdi) != SR_OK)
  98                 return;
  99
 100         vector< pair<const void*, QString> > values;
 101         for (int i = 0; stropts[i]; i++)
 102                 values.push_back(make_pair(stropts[i], stropts[i]));
 103
 104         expose_enum(info, values, key);
 105 }
 106
 107 void HwCap::bind_buffer_size(const struct sr_config_info *info)
 108 {
 109         const uint64_t *sizes;
 110         if (sr_config_list(_sdi->driver, SR_CONF_BUFFERSIZE,
 111                         (const void **)&sizes, _sdi) != SR_OK)
 112                 return;
 113
 114         vector< pair<const void*, QString> > values;
 115         for (int i = 0; sizes[i]; i++)
 116                 values.push_back(make_pair(sizes + i,
 117                         QString("%1").arg(sizes[i])));
 118
 119         expose_enum(info, values, SR_CONF_BUFFERSIZE);
 120 }
 121
 122 void HwCap::bind_time_base(const struct sr_config_info *info)
 123 {
 124         struct sr_rational *timebases;
 125         if (sr_config_list(_sdi->driver, SR_CONF_TIMEBASE,
 126                         (const void **)&timebases, _sdi) != SR_OK)
 127                 return;
 128
 129         vector< pair<const void*, QString> > values;
 130         for (int i = 0; timebases[i].p && timebases[i].q; i++)
 131                 values.push_back(make_pair(timebases + i,
 132                         QString(sr_period_string(
 133                                 timebases[i].p * timebases[i].q))));
 134
 135         expose_enum(info, values, SR_CONF_TIMEBASE);
 136 }
 137
 138 void HwCap::bind_vdiv(const struct sr_config_info *info)
 139 {
 140         struct sr_rational *vdivs;
 141         if (sr_config_list(_sdi->driver, SR_CONF_VDIV,
 142                         (const void **)&vdivs, _sdi) != SR_OK)
 143                 return;
 144
 145         vector< pair<const void*, QString> > values;
 146         for (int i = 0; vdivs[i].p && vdivs[i].q; i++)
 147                 values.push_back(make_pair(vdivs + i,
 148                         QString(sr_voltage_string(vdivs + i))));
 149
 150         expose_enum(info, values, SR_CONF_VDIV);
 151 }
 152
 153 } // binding
 154 } // prop
 155 } // pv
 156