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 int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
  68 {
  69         return std_init(sr_ctx, di, LOG_PREFIX);
  70 }
  71
  72 static GSList *scan(struct sr_dev_driver *di, GSList *options)
  73 {
  74         struct drv_context *drvc;
  75         struct dev_context *devc;
  76         GSList *devices, *l;
  77         struct sr_dev_inst *sdi;
  78         struct sr_config *src;
  79         const char *conn, *serialcomm;
  80         struct sr_serial_dev_inst *serial;
  81         char reply[50];
  82         int i, model_id;
  83         unsigned int len;
  84
  85         devices = NULL;
  86         conn = NULL;
  87         serialcomm = NULL;
  88         drvc = di->context;
  89         drvc->instances = NULL;
  90
  91         for (l = options; l; l = l->next) {
  92                 src = l->data;
  93                 switch (src->key) {
  94                 case SR_CONF_CONN:
  95                         conn = g_variant_get_string(src->data, NULL);
  96                         break;
  97                 case SR_CONF_SERIALCOMM:
  98                         serialcomm = g_variant_get_string(src->data, NULL);
  99                         break;
 100                 default:
 101                         sr_err("Unknown option %d, skipping.", src->key);
 102                         break;
 103                 }
 104         }
 105
 106         if (!conn)
 107                 return NULL;
 108         if (!serialcomm)
 109                 serialcomm = "9600/8n1";
 110
 111         serial = sr_serial_dev_inst_new(conn, serialcomm);
 112         if (serial_open(serial, SERIAL_RDWR) != SR_OK)
 113                 return NULL;
 114
 115         serial_flush(serial);
 116
 117         /* Get the device model. */
 118         len = 0;
 119         for (i = 0; models[i].id; i++) {
 120                 if (strlen(models[i].id) > len)
 121                         len = strlen(models[i].id);
 122         }
 123         memset(&reply, 0, sizeof(reply));
 124         sr_dbg("Want max %d bytes.", len);
 125         if ((korad_kaxxxxp_send_cmd(serial, "*IDN?") < 0))
 126                 return NULL;
 127
 128         /* i is used here for debug purposes only. */
 129         if ((i = korad_kaxxxxp_read_chars(serial, len, reply)) < 0)
 130                 return NULL;
 131         sr_dbg("Received: %d, %s", i, reply);
 132         model_id = -1;
 133         for (i = 0; models[i].id; i++) {
 134                 if (!strcmp(models[i].id, reply))
 135                         model_id = i;
 136         }
 137         if (model_id < 0) {
 138                 sr_err("Unknown model ID '%s' detected, aborting.", reply);
 139                 return NULL;
 140         }
 141         sr_dbg("Found: %s %s (idx %d, ID '%s').", models[model_id].vendor,
 142                 models[model_id].name, model_id, models[model_id].id);
 143
 144         /* Init device instance, etc. */
 145         sdi = g_malloc0(sizeof(struct sr_dev_inst));
 146         sdi->status = SR_ST_INACTIVE;
 147         sdi->vendor = g_strdup(models[model_id].vendor);
 148         sdi->model = g_strdup(models[model_id].name);
 149         sdi->inst_type = SR_INST_SERIAL;
 150         sdi->conn = serial;
 151         sdi->driver = di;
 152
 153         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "CH1");
 154
 155         devc = g_malloc0(sizeof(struct dev_context));
 156         sr_sw_limits_init(&devc->limits);
 157         devc->model = &models[model_id];
 158         devc->reply[5] = 0;
 159         devc->req_sent_at = 0;
 160         sdi->priv = devc;
 161
 162         /* Get current status of device. */
 163         if (korad_kaxxxxp_get_all_values(serial, devc) < 0)
 164                 goto exit_err;
 165         drvc->instances = g_slist_append(drvc->instances, sdi);
 166         devices = g_slist_append(devices, sdi);
 167
 168         serial_close(serial);
 169         if (!devices)
 170                 sr_serial_dev_inst_free(serial);
 171
 172         return devices;
 173
 174 exit_err:
 175         sr_dev_inst_free(sdi);
 176         g_free(devc);
 177         sr_dbg("Scan failed.");
 178
 179         return NULL;
 180 }
 181
 182 static int config_get(uint32_t key, GVariant **data,
 183         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 184 {
 185         struct dev_context *devc;
 186
 187         (void)cg;
 188
 189         if (!sdi || !data)
 190                 return SR_ERR_ARG;
 191
 192         devc = sdi->priv;
 193
 194         switch (key) {
 195                 return sr_sw_limits_config_get(&devc->limits, key, data);
 196         case SR_CONF_VOLTAGE:
 197                 *data = g_variant_new_double(devc->voltage);
 198                 break;
 199         case SR_CONF_VOLTAGE_TARGET:
 200                 *data = g_variant_new_double(devc->voltage_max);
 201                 break;
 202         case SR_CONF_CURRENT:
 203                 *data = g_variant_new_double(devc->current);
 204                 break;
 205         case SR_CONF_CURRENT_LIMIT:
 206                 *data = g_variant_new_double(devc->current_max);
 207                 break;
 208         case SR_CONF_ENABLED:
 209                 *data = g_variant_new_boolean(devc->output_enabled);
 210                 break;
 211         case SR_CONF_REGULATION:
 212                 /* Dual channel not supported. */
 213                 *data = g_variant_new_string((devc->cc_mode[0]) ? "CC" : "CV");
 214                 break;
 215         case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
 216                 *data = g_variant_new_boolean(devc->ocp_enabled);
 217                 break;
 218         case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
 219                 *data = g_variant_new_boolean(devc->ovp_enabled);
 220                 break;
 221         default:
 222                 return SR_ERR_NA;
 223         }
 224
 225         return SR_OK;
 226 }
 227
 228 static int config_set(uint32_t key, GVariant *data,
 229         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 230 {
 231         struct dev_context *devc;
 232         double dval;
 233         gboolean bval;
 234
 235         (void)cg;
 236
 237         if (sdi->status != SR_ST_ACTIVE)
 238                 return SR_ERR_DEV_CLOSED;
 239
 240         devc = sdi->priv;
 241
 242         switch (key) {
 243         case SR_CONF_LIMIT_MSEC:
 244         case SR_CONF_LIMIT_SAMPLES:
 245                 return sr_sw_limits_config_set(&devc->limits, key, data);
 246         case SR_CONF_VOLTAGE_TARGET:
 247                 dval = g_variant_get_double(data);
 248                 if (dval < devc->model->voltage[0] || dval > devc->model->voltage[1])
 249                         return SR_ERR_ARG;
 250                 devc->voltage_max = dval;
 251                 devc->target = KAXXXXP_VOLTAGE_MAX;
 252                 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
 253                         return SR_ERR;
 254                 break;
 255         case SR_CONF_CURRENT_LIMIT:
 256                 dval = g_variant_get_double(data);
 257                 if (dval < devc->model->current[0] || dval > devc->model->current[1])
 258                         return SR_ERR_ARG;
 259                 devc->current_max = dval;
 260                 devc->target = KAXXXXP_CURRENT_MAX;
 261                 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
 262                         return SR_ERR;
 263                 break;
 264         case SR_CONF_ENABLED:
 265                 bval = g_variant_get_boolean(data);
 266                 /* Set always so it is possible turn off with sigrok-cli. */
 267                 devc->output_enabled = bval;
 268                 devc->target = KAXXXXP_OUTPUT;
 269                 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
 270                         return SR_ERR;
 271                 break;
 272         case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
 273                 bval = g_variant_get_boolean(data);
 274                 devc->ocp_enabled = bval;
 275                 devc->target = KAXXXXP_OCP;
 276                 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
 277                         return SR_ERR;
 278                 break;
 279         case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
 280                 bval = g_variant_get_boolean(data);
 281                 devc->ovp_enabled = bval;
 282                 devc->target = KAXXXXP_OVP;
 283                 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
 284                         return SR_ERR;
 285                 break;
 286         default:
 287                 return SR_ERR_NA;
 288         }
 289
 290         return SR_OK;
 291 }
 292
 293 static int config_list(uint32_t key, GVariant **data,
 294         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 295 {
 296
 297         struct dev_context *devc;
 298         GVariant *gvar;
 299         GVariantBuilder gvb;
 300         double dval;
 301         int idx;
 302
 303         (void)cg;
 304
 305         /* Always available (with or without sdi). */
 306         if (key == SR_CONF_SCAN_OPTIONS) {
 307                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 308                         scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 309                 return SR_OK;
 310         }
 311
 312         /* Return drvopts without sdi (and devopts with sdi, see below). */
 313         if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
 314                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 315                         drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
 316                 return SR_OK;
 317         }
 318
 319         /* Every other key needs an sdi. */
 320         if (!sdi)
 321                 return SR_ERR_ARG;
 322
 323         devc = sdi->priv;
 324
 325         switch (key) {
 326         case SR_CONF_DEVICE_OPTIONS:
 327                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 328                         devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 329                 break;
 330         case SR_CONF_VOLTAGE_TARGET:
 331                 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
 332                 /* Min, max, step. */
 333                 for (idx = 0; idx < 3; idx++) {
 334                         dval = devc->model->voltage[idx];
 335                         gvar = g_variant_new_double(dval);
 336                         g_variant_builder_add_value(&gvb, gvar);
 337                 }
 338                 *data = g_variant_builder_end(&gvb);
 339                 break;
 340         case SR_CONF_CURRENT_LIMIT:
 341                 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
 342                 /* Min, max, step. */
 343                 for (idx = 0; idx < 3; idx++) {
 344                         dval = devc->model->current[idx];
 345                         gvar = g_variant_new_double(dval);
 346                         g_variant_builder_add_value(&gvb, gvar);
 347                 }
 348                 *data = g_variant_builder_end(&gvb);
 349                 break;
 350         default:
 351                 return SR_ERR_NA;
 352         }
 353
 354         return SR_OK;
 355 }
 356
 357 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 358 {
 359         struct dev_context *devc;
 360         struct sr_serial_dev_inst *serial;
 361
 362         if (sdi->status != SR_ST_ACTIVE)
 363                 return SR_ERR_DEV_CLOSED;
 364
 365         devc = sdi->priv;
 366
 367         sr_sw_limits_acquisition_start(&devc->limits);
 368         std_session_send_df_header(sdi, LOG_PREFIX);
 369
 370         devc->reply_pending = FALSE;
 371         devc->req_sent_at = 0;
 372         serial = sdi->conn;
 373         serial_source_add(sdi->session, serial, G_IO_IN,
 374                         KAXXXXP_POLL_INTERVAL_MS,
 375                         korad_kaxxxxp_receive_data, (void *)sdi);
 376
 377         return SR_OK;
 378 }
 379
 380 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 381 {
 382         if (sdi->status != SR_ST_ACTIVE)
 383                 return SR_ERR_DEV_CLOSED;
 384
 385         return std_serial_dev_acquisition_stop(sdi,
 386                 std_serial_dev_close, sdi->conn, LOG_PREFIX);
 387 }
 388
 389 SR_PRIV struct sr_dev_driver korad_kaxxxxp_driver_info = {
 390         .name = "korad-kaxxxxp",
 391         .longname = "Korad KAxxxxP",
 392         .api_version = 1,
 393         .init = init,
 394         .cleanup = std_cleanup,
 395         .scan = scan,
 396         .dev_list = std_dev_list,
 397         .config_get = config_get,
 398         .config_set = config_set,
 399         .config_list = config_list,
 400         .dev_open = std_serial_dev_open,
 401         .dev_close = std_serial_dev_close,
 402         .dev_acquisition_start = dev_acquisition_start,
 403         .dev_acquisition_stop = dev_acquisition_stop,
 404         .context = NULL,
 405 };