hardware/fluke-dmm/api.c

   1 /*
   2  * This file is part of the sigrok project.
   3  *
   4  * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
   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 3 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 <glib.h>
  21 #include "libsigrok.h"
  22 #include "libsigrok-internal.h"
  23 #include "config.h"
  24
  25
  26 SR_PRIV struct sr_dev_driver driver_info;
  27 static struct sr_dev_driver *di = &driver_info;
  28
  29 /* TODO move to header file */
  30 struct drv_context { GSList *instances; };
  31 struct dev_context { };
  32
  33 /* Properly close and free all devices. */
  34 static int clear_instances(void)
  35 {
  36         struct sr_dev_inst *sdi;
  37         struct drv_context *drvc;
  38         struct dev_context *devc;
  39         GSList *l;
  40
  41         drvc = di->priv;
  42         for (l = drvc->instances; l; l = l->next) {
  43                 if (!(sdi = l->data)) {
  44                         /* Log error, but continue cleaning up the rest. */
  45                         sr_err("TODO: %s: sdi was NULL, continuing", __func__);
  46                         continue;
  47                 }
  48                 if (!(devc = sdi->priv)) {
  49                         /* Log error, but continue cleaning up the rest. */
  50                         sr_err("TODO: %s: sdi->priv was NULL, continuing", __func__);
  51                         continue;
  52                 }
  53
  54                 /* TODO */
  55
  56                 sr_dev_inst_free(sdi);
  57         }
  58
  59         g_slist_free(drvc->instances);
  60         drvc->instances = NULL;
  61
  62         return SR_OK;
  63 }
  64
  65 static int hw_init(void)
  66 {
  67         struct drv_context *drvc;
  68
  69         if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) {
  70                 sr_err("TODO: driver context malloc failed.");
  71                 return SR_ERR;
  72         }
  73
  74         /* TODO */
  75
  76         di->priv = drvc;
  77
  78         return SR_OK;
  79 }
  80
  81 static GSList *hw_scan(GSList *options)
  82 {
  83         struct drv_context *drvc;
  84         GSList *devices;
  85
  86         (void)options;
  87         devices = NULL;
  88         drvc = di->priv;
  89         drvc->instances = NULL;
  90
  91         /* TODO */
  92
  93         return devices;
  94 }
  95
  96 static GSList *hw_dev_list(void)
  97 {
  98         struct drv_context *drvc;
  99
 100         drvc = di->priv;
 101
 102         return drvc->instances;
 103 }
 104
 105 static int hw_dev_open(struct sr_dev_inst *sdi)
 106 {
 107
 108         /* TODO */
 109
 110         return SR_OK;
 111 }
 112
 113 static int hw_dev_close(struct sr_dev_inst *sdi)
 114 {
 115
 116         /* TODO */
 117
 118         return SR_OK;
 119 }
 120
 121 static int hw_cleanup(void)
 122 {
 123
 124         clear_instances();
 125
 126         /* TODO */
 127
 128         return SR_OK;
 129 }
 130
 131 static int hw_info_get(int info_id, const void **data,
 132        const struct sr_dev_inst *sdi)
 133 {
 134
 135
 136         switch (info_id) {
 137         /* TODO */
 138         default:
 139                 return SR_ERR_ARG;
 140         }
 141
 142         return SR_OK;
 143 }
 144
 145 static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap,
 146                 const void *value)
 147 {
 148         int ret;
 149
 150         if (sdi->status != SR_ST_ACTIVE)
 151                 return SR_ERR;
 152
 153         ret = SR_OK;
 154         switch (hwcap) {
 155         /* TODO */
 156         default:
 157                 ret = SR_ERR_ARG;
 158         }
 159
 160         return ret;
 161 }
 162
 163 static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 164                 void *cb_data)
 165 {
 166
 167         /* TODO */
 168
 169         return SR_OK;
 170 }
 171
 172 static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi,
 173                 void *cb_data)
 174 {
 175
 176         (void)cb_data;
 177
 178         if (sdi->status != SR_ST_ACTIVE)
 179                 return SR_ERR;
 180
 181         /* TODO */
 182
 183         return SR_OK;
 184 }
 185
 186 SR_PRIV struct sr_dev_driver driver_info = {
 187         .name = "fluke-dmm",
 188         .longname = "Fluke 18x/28x series DMMs",
 189         .api_version = 1,
 190         .init = hw_init,
 191         .cleanup = hw_cleanup,
 192         .scan = hw_scan,
 193         .dev_list = hw_dev_list,
 194         .dev_clear = clear_instances,
 195         .dev_open = hw_dev_open,
 196         .dev_close = hw_dev_close,
 197         .info_get = hw_info_get,
 198         .dev_config_set = hw_dev_config_set,
 199         .dev_acquisition_start = hw_dev_acquisition_start,
 200         .dev_acquisition_stop = hw_dev_acquisition_stop,
 201         .priv = NULL,
 202 };