src/hardware/korad-kaxxxxp/api.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2015 Hannu Vuolasaho <vuokkosetae@gmail.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 <config.h>
  21 #include "protocol.h"
  22
  23 static const uint32_t drvopts[] = {
  24         /* Device class */
  25         SR_CONF_POWER_SUPPLY,
  26 };
  27
  28 static const uint32_t scanopts[] = {
  29         SR_CONF_CONN,
  30         SR_CONF_SERIALCOMM,
  31 };
  32
  33 static const uint32_t devopts[] = {
  34         /* Device class */
  35         SR_CONF_POWER_SUPPLY,
  36         /* Acquisition modes. */
  37         SR_CONF_CONTINUOUS,
  38         SR_CONF_LIMIT_SAMPLES | SR_CONF_GET | SR_CONF_SET,
  39         SR_CONF_LIMIT_MSEC | SR_CONF_GET | SR_CONF_SET,
  40         /* Device configuration */
  41         SR_CONF_VOLTAGE | SR_CONF_GET,
  42         SR_CONF_VOLTAGE_TARGET | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  43         SR_CONF_CURRENT | SR_CONF_GET,
  44         SR_CONF_CURRENT_LIMIT | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  45         SR_CONF_ENABLED | SR_CONF_GET | SR_CONF_SET,
  46         SR_CONF_REGULATION | SR_CONF_GET,
  47         SR_CONF_OVER_CURRENT_PROTECTION_ENABLED | SR_CONF_GET | SR_CONF_SET,
  48         SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED | SR_CONF_GET | SR_CONF_SET,
  49 };
  50
  51 static const struct korad_kaxxxxp_model models[] = {
  52         /* Device enum, vendor, model, ID reply, channels, voltage, current */
  53         {VELLEMAN_PS3005D, "Velleman", "PS3005D",
  54                 "VELLEMANPS3005DV2.0", 1, {0, 31, 0.01}, {0, 5, 0.001}},
  55         {VELLEMAN_LABPS3005D, "Velleman", "LABPS3005D",
  56                 "VELLEMANLABPS3005DV2.0", 1, {0, 31, 0.01}, {0, 5, 0.001}},
  57         {KORAD_KA3005P, "Korad", "KA3005P",
  58                 "KORADKA3005PV2.0", 1, {0, 31, 0.01}, {0, 5, 0.001}},
  59         /* Sometimes the KA3005P has an extra 0x01 after the ID. */
  60         {KORAD_KA3005P_0X01, "Korad", "KA3005P",
  61                 "KORADKA3005PV2.0\x01", 1, {0, 31, 0.01}, {0, 5, 0.001}},
  62         ALL_ZERO
  63 };
  64
  65 SR_PRIV struct sr_dev_driver korad_kaxxxxp_driver_info;
  66
  67 static GSList *scan(struct sr_dev_driver *di, GSList *options)
  68 {
  69         struct drv_context *drvc;
  70         struct dev_context *devc;
  71         GSList *devices, *l;
  72         struct sr_dev_inst *sdi;
  73         struct sr_config *src;
  74         const char *conn, *serialcomm;
  75         struct sr_serial_dev_inst *serial;
  76         char reply[50];
  77         int i, model_id;
  78         unsigned int len;
  79
  80         devices = NULL;
  81         conn = NULL;
  82         serialcomm = NULL;
  83         drvc = di->context;
  84         drvc->instances = NULL;
  85
  86         for (l = options; l; l = l->next) {
  87                 src = l->data;
  88                 switch (src->key) {
  89                 case SR_CONF_CONN:
  90                         conn = g_variant_get_string(src->data, NULL);
  91                         break;
  92                 case SR_CONF_SERIALCOMM:
  93                         serialcomm = g_variant_get_string(src->data, NULL);
  94                         break;
  95                 default:
  96                         sr_err("Unknown option %d, skipping.", src->key);
  97                         break;
  98                 }
  99         }
 100
 101         if (!conn)
 102                 return NULL;
 103         if (!serialcomm)
 104                 serialcomm = "9600/8n1";
 105
 106         serial = sr_serial_dev_inst_new(conn, serialcomm);
 107         if (serial_open(serial, SERIAL_RDWR) != SR_OK)
 108                 return NULL;
 109
 110         serial_flush(serial);
 111
 112         /* Get the device model. */
 113         len = 0;
 114         for (i = 0; models[i].id; i++) {
 115                 if (strlen(models[i].id) > len)
 116                         len = strlen(models[i].id);
 117         }
 118         memset(&reply, 0, sizeof(reply));
 119         sr_dbg("Want max %d bytes.", len);
 120         if ((korad_kaxxxxp_send_cmd(serial, "*IDN?") < 0))
 121                 return NULL;
 122
 123         /* i is used here for debug purposes only. */
 124         if ((i = korad_kaxxxxp_read_chars(serial, len, reply)) < 0)
 125                 return NULL;
 126         sr_dbg("Received: %d, %s", i, reply);
 127         model_id = -1;
 128         for (i = 0; models[i].id; i++) {
 129                 if (!strcmp(models[i].id, reply))
 130                         model_id = i;
 131         }
 132         if (model_id < 0) {
 133                 sr_err("Unknown model ID '%s' detected, aborting.", reply);
 134                 return NULL;
 135         }
 136         sr_dbg("Found: %s %s (idx %d, ID '%s').", models[model_id].vendor,
 137                 models[model_id].name, model_id, models[model_id].id);
 138
 139         /* Init device instance, etc. */
 140         sdi = g_malloc0(sizeof(struct sr_dev_inst));
 141         sdi->status = SR_ST_INACTIVE;
 142         sdi->vendor = g_strdup(models[model_id].vendor);
 143         sdi->model = g_strdup(models[model_id].name);
 144         sdi->inst_type = SR_INST_SERIAL;
 145         sdi->conn = serial;
 146         sdi->driver = di;
 147
 148         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "CH1");
 149
 150         devc = g_malloc0(sizeof(struct dev_context));
 151         sr_sw_limits_init(&devc->limits);
 152         devc->model = &models[model_id];
 153         devc->reply[5] = 0;
 154         devc->req_sent_at = 0;
 155         sdi->priv = devc;
 156
 157         /* Get current status of device. */
 158         if (korad_kaxxxxp_get_all_values(serial, devc) < 0)
 159                 goto exit_err;
 160         drvc->instances = g_slist_append(drvc->instances, sdi);
 161         devices = g_slist_append(devices, sdi);
 162
 163         serial_close(serial);
 164         if (!devices)
 165                 sr_serial_dev_inst_free(serial);
 166
 167         return devices;
 168
 169 exit_err:
 170         sr_dev_inst_free(sdi);
 171         g_free(devc);
 172         sr_dbg("Scan failed.");
 173
 174         return NULL;
 175 }
 176
 177 static int config_get(uint32_t key, GVariant **data,
 178         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 179 {
 180         struct dev_context *devc;
 181
 182         (void)cg;
 183
 184         if (!sdi || !data)
 185                 return SR_ERR_ARG;
 186
 187         devc = sdi->priv;
 188
 189         switch (key) {
 190                 return sr_sw_limits_config_get(&devc->limits, key, data);
 191         case SR_CONF_VOLTAGE:
 192                 *data = g_variant_new_double(devc->voltage);
 193                 break;
 194         case SR_CONF_VOLTAGE_TARGET:
 195                 *data = g_variant_new_double(devc->voltage_max);
 196                 break;
 197         case SR_CONF_CURRENT:
 198                 *data = g_variant_new_double(devc->current);
 199                 break;
 200         case SR_CONF_CURRENT_LIMIT:
 201                 *data = g_variant_new_double(devc->current_max);
 202                 break;
 203         case SR_CONF_ENABLED:
 204                 *data = g_variant_new_boolean(devc->output_enabled);
 205                 break;
 206         case SR_CONF_REGULATION:
 207                 /* Dual channel not supported. */
 208                 *data = g_variant_new_string((devc->cc_mode[0]) ? "CC" : "CV");
 209                 break;
 210         case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
 211                 *data = g_variant_new_boolean(devc->ocp_enabled);
 212                 break;
 213         case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
 214                 *data = g_variant_new_boolean(devc->ovp_enabled);
 215                 break;
 216         default:
 217                 return SR_ERR_NA;
 218         }
 219
 220         return SR_OK;
 221 }
 222
 223 static int config_set(uint32_t key, GVariant *data,
 224         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 225 {
 226         struct dev_context *devc;
 227         double dval;
 228         gboolean bval;
 229
 230         (void)cg;
 231
 232         if (sdi->status != SR_ST_ACTIVE)
 233                 return SR_ERR_DEV_CLOSED;
 234
 235         devc = sdi->priv;
 236
 237         switch (key) {
 238         case SR_CONF_LIMIT_MSEC:
 239         case SR_CONF_LIMIT_SAMPLES:
 240                 return sr_sw_limits_config_set(&devc->limits, key, data);
 241         case SR_CONF_VOLTAGE_TARGET:
 242                 dval = g_variant_get_double(data);
 243                 if (dval < devc->model->voltage[0] || dval > devc->model->voltage[1])
 244                         return SR_ERR_ARG;
 245                 devc->voltage_max = dval;
 246                 devc->target = KAXXXXP_VOLTAGE_MAX;
 247                 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
 248                         return SR_ERR;
 249                 break;
 250         case SR_CONF_CURRENT_LIMIT:
 251                 dval = g_variant_get_double(data);
 252                 if (dval < devc->model->current[0] || dval > devc->model->current[1])
 253                         return SR_ERR_ARG;
 254                 devc->current_max = dval;
 255                 devc->target = KAXXXXP_CURRENT_MAX;
 256                 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
 257                         return SR_ERR;
 258                 break;
 259         case SR_CONF_ENABLED:
 260                 bval = g_variant_get_boolean(data);
 261                 /* Set always so it is possible turn off with sigrok-cli. */
 262                 devc->output_enabled = bval;
 263                 devc->target = KAXXXXP_OUTPUT;
 264                 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
 265                         return SR_ERR;
 266                 break;
 267         case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
 268                 bval = g_variant_get_boolean(data);
 269                 devc->ocp_enabled = bval;
 270                 devc->target = KAXXXXP_OCP;
 271                 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
 272                         return SR_ERR;
 273                 break;
 274         case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
 275                 bval = g_variant_get_boolean(data);
 276                 devc->ovp_enabled = bval;
 277                 devc->target = KAXXXXP_OVP;
 278                 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
 279                         return SR_ERR;
 280                 break;
 281         default:
 282                 return SR_ERR_NA;
 283         }
 284
 285         return SR_OK;
 286 }
 287
 288 static int config_list(uint32_t key, GVariant **data,
 289         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 290 {
 291
 292         struct dev_context *devc;
 293         GVariant *gvar;
 294         GVariantBuilder gvb;
 295         double dval;
 296         int idx;
 297
 298         (void)cg;
 299
 300         /* Always available (with or without sdi). */
 301         if (key == SR_CONF_SCAN_OPTIONS) {
 302                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 303                         scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 304                 return SR_OK;
 305         }
 306
 307         /* Return drvopts without sdi (and devopts with sdi, see below). */
 308         if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
 309                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 310                         drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
 311                 return SR_OK;
 312         }
 313
 314         /* Every other key needs an sdi. */
 315         if (!sdi)
 316                 return SR_ERR_ARG;
 317
 318         devc = sdi->priv;
 319
 320         switch (key) {
 321         case SR_CONF_DEVICE_OPTIONS:
 322                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 323                         devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 324                 break;
 325         case SR_CONF_VOLTAGE_TARGET:
 326                 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
 327                 /* Min, max, step. */
 328                 for (idx = 0; idx < 3; idx++) {
 329                         dval = devc->model->voltage[idx];
 330                         gvar = g_variant_new_double(dval);
 331                         g_variant_builder_add_value(&gvb, gvar);
 332                 }
 333                 *data = g_variant_builder_end(&gvb);
 334                 break;
 335         case SR_CONF_CURRENT_LIMIT:
 336                 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
 337                 /* Min, max, step. */
 338                 for (idx = 0; idx < 3; idx++) {
 339                         dval = devc->model->current[idx];
 340                         gvar = g_variant_new_double(dval);
 341                         g_variant_builder_add_value(&gvb, gvar);
 342                 }
 343                 *data = g_variant_builder_end(&gvb);
 344                 break;
 345         default:
 346                 return SR_ERR_NA;
 347         }
 348
 349         return SR_OK;
 350 }
 351
 352 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 353 {
 354         struct dev_context *devc;
 355         struct sr_serial_dev_inst *serial;
 356
 357         if (sdi->status != SR_ST_ACTIVE)
 358                 return SR_ERR_DEV_CLOSED;
 359
 360         devc = sdi->priv;
 361
 362         sr_sw_limits_acquisition_start(&devc->limits);
 363         std_session_send_df_header(sdi, LOG_PREFIX);
 364
 365         devc->reply_pending = FALSE;
 366         devc->req_sent_at = 0;
 367         serial = sdi->conn;
 368         serial_source_add(sdi->session, serial, G_IO_IN,
 369                         KAXXXXP_POLL_INTERVAL_MS,
 370                         korad_kaxxxxp_receive_data, (void *)sdi);
 371
 372         return SR_OK;
 373 }
 374
 375 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 376 {
 377         if (sdi->status != SR_ST_ACTIVE)
 378                 return SR_ERR_DEV_CLOSED;
 379
 380         return std_serial_dev_acquisition_stop(sdi,
 381                 std_serial_dev_close, sdi->conn, LOG_PREFIX);
 382 }
 383
 384 SR_PRIV struct sr_dev_driver korad_kaxxxxp_driver_info = {
 385         .name = "korad-kaxxxxp",
 386         .longname = "Korad KAxxxxP",
 387         .api_version = 1,
 388         .init = std_init,
 389         .cleanup = std_cleanup,
 390         .scan = scan,
 391         .dev_list = std_dev_list,
 392         .config_get = config_get,
 393         .config_set = config_set,
 394         .config_list = config_list,
 395         .dev_open = std_serial_dev_open,
 396         .dev_close = std_serial_dev_close,
 397         .dev_acquisition_start = dev_acquisition_start,
 398         .dev_acquisition_stop = dev_acquisition_stop,
 399         .context = NULL,
 400 };