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         devc->model = &models[model_id];
 157         devc->reply[5] = 0;
 158         devc->req_sent_at = 0;
 159         sdi->priv = devc;
 160
 161         /* Get current status of device. */
 162         if (korad_kaxxxxp_get_all_values(serial, devc) < 0)
 163                 goto exit_err;
 164         drvc->instances = g_slist_append(drvc->instances, sdi);
 165         devices = g_slist_append(devices, sdi);
 166
 167         serial_close(serial);
 168         if (!devices)
 169                 sr_serial_dev_inst_free(serial);
 170
 171         return devices;
 172
 173 exit_err:
 174         sr_dev_inst_free(sdi);
 175         g_free(devc);
 176         sr_dbg("Scan failed.");
 177
 178         return NULL;
 179 }
 180
 181 static int config_get(uint32_t key, GVariant **data,
 182         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 183 {
 184         struct dev_context *devc;
 185
 186         (void)cg;
 187
 188         if (!sdi || !data)
 189                 return SR_ERR_ARG;
 190
 191         devc = sdi->priv;
 192
 193         switch (key) {
 194         case SR_CONF_LIMIT_SAMPLES:
 195                 *data = g_variant_new_uint64(devc->limit_samples);
 196                 break;
 197         case SR_CONF_LIMIT_MSEC:
 198                 *data = g_variant_new_uint64(devc->limit_msec);
 199                 break;
 200         case SR_CONF_VOLTAGE:
 201                 *data = g_variant_new_double(devc->voltage);
 202                 break;
 203         case SR_CONF_VOLTAGE_TARGET:
 204                 *data = g_variant_new_double(devc->voltage_max);
 205                 break;
 206         case SR_CONF_CURRENT:
 207                 *data = g_variant_new_double(devc->current);
 208                 break;
 209         case SR_CONF_CURRENT_LIMIT:
 210                 *data = g_variant_new_double(devc->current_max);
 211                 break;
 212         case SR_CONF_ENABLED:
 213                 *data = g_variant_new_boolean(devc->output_enabled);
 214                 break;
 215         case SR_CONF_REGULATION:
 216                 /* Dual channel not supported. */
 217                 *data = g_variant_new_string((devc->cc_mode[0]) ? "CC" : "CV");
 218                 break;
 219         case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
 220                 *data = g_variant_new_boolean(devc->ocp_enabled);
 221                 break;
 222         case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
 223                 *data = g_variant_new_boolean(devc->ovp_enabled);
 224                 break;
 225         default:
 226                 return SR_ERR_NA;
 227         }
 228
 229         return SR_OK;
 230 }
 231
 232 static int config_set(uint32_t key, GVariant *data,
 233         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 234 {
 235         struct dev_context *devc;
 236         double dval;
 237         gboolean bval;
 238
 239         (void)cg;
 240
 241         if (sdi->status != SR_ST_ACTIVE)
 242                 return SR_ERR_DEV_CLOSED;
 243
 244         devc = sdi->priv;
 245
 246         switch (key) {
 247         case SR_CONF_LIMIT_MSEC:
 248                 if (g_variant_get_uint64(data) == 0)
 249                         return SR_ERR_ARG;
 250                 devc->limit_msec = g_variant_get_uint64(data);
 251                 break;
 252         case SR_CONF_LIMIT_SAMPLES:
 253                 if (g_variant_get_uint64(data) == 0)
 254                         return SR_ERR_ARG;
 255                 devc->limit_samples = g_variant_get_uint64(data);
 256                 break;
 257         case SR_CONF_VOLTAGE_TARGET:
 258                 dval = g_variant_get_double(data);
 259                 if (dval < devc->model->voltage[0] || dval > devc->model->voltage[1])
 260                         return SR_ERR_ARG;
 261                 devc->voltage_max = dval;
 262                 devc->target = KAXXXXP_VOLTAGE_MAX;
 263                 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
 264                         return SR_ERR;
 265                 break;
 266         case SR_CONF_CURRENT_LIMIT:
 267                 dval = g_variant_get_double(data);
 268                 if (dval < devc->model->current[0] || dval > devc->model->current[1])
 269                         return SR_ERR_ARG;
 270                 devc->current_max = dval;
 271                 devc->target = KAXXXXP_CURRENT_MAX;
 272                 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
 273                         return SR_ERR;
 274                 break;
 275         case SR_CONF_ENABLED:
 276                 bval = g_variant_get_boolean(data);
 277                 /* Set always so it is possible turn off with sigrok-cli. */
 278                 devc->output_enabled = bval;
 279                 devc->target = KAXXXXP_OUTPUT;
 280                 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
 281                         return SR_ERR;
 282                 break;
 283         case SR_CONF_OVER_CURRENT_PROTECTION_ENABLED:
 284                 bval = g_variant_get_boolean(data);
 285                 devc->ocp_enabled = bval;
 286                 devc->target = KAXXXXP_OCP;
 287                 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
 288                         return SR_ERR;
 289                 break;
 290         case SR_CONF_OVER_VOLTAGE_PROTECTION_ENABLED:
 291                 bval = g_variant_get_boolean(data);
 292                 devc->ovp_enabled = bval;
 293                 devc->target = KAXXXXP_OVP;
 294                 if (korad_kaxxxxp_set_value(sdi->conn, devc) < 0)
 295                         return SR_ERR;
 296                 break;
 297         default:
 298                 return SR_ERR_NA;
 299         }
 300
 301         return SR_OK;
 302 }
 303
 304 static int config_list(uint32_t key, GVariant **data,
 305         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 306 {
 307
 308         struct dev_context *devc;
 309         GVariant *gvar;
 310         GVariantBuilder gvb;
 311         double dval;
 312         int idx;
 313
 314         (void)cg;
 315
 316         /* Always available (with or without sdi). */
 317         if (key == SR_CONF_SCAN_OPTIONS) {
 318                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 319                         scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 320                 return SR_OK;
 321         }
 322
 323         /* Return drvopts without sdi (and devopts with sdi, see below). */
 324         if (key == SR_CONF_DEVICE_OPTIONS && !sdi) {
 325                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 326                         drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t));
 327                 return SR_OK;
 328         }
 329
 330         /* Every other key needs an sdi. */
 331         if (!sdi)
 332                 return SR_ERR_ARG;
 333
 334         devc = sdi->priv;
 335
 336         switch (key) {
 337         case SR_CONF_DEVICE_OPTIONS:
 338                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 339                         devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 340                 break;
 341         case SR_CONF_VOLTAGE_TARGET:
 342                 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
 343                 /* Min, max, step. */
 344                 for (idx = 0; idx < 3; idx++) {
 345                         dval = devc->model->voltage[idx];
 346                         gvar = g_variant_new_double(dval);
 347                         g_variant_builder_add_value(&gvb, gvar);
 348                 }
 349                 *data = g_variant_builder_end(&gvb);
 350                 break;
 351         case SR_CONF_CURRENT_LIMIT:
 352                 g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY);
 353                 /* Min, max, step. */
 354                 for (idx = 0; idx < 3; idx++) {
 355                         dval = devc->model->current[idx];
 356                         gvar = g_variant_new_double(dval);
 357                         g_variant_builder_add_value(&gvb, gvar);
 358                 }
 359                 *data = g_variant_builder_end(&gvb);
 360                 break;
 361         default:
 362                 return SR_ERR_NA;
 363         }
 364
 365         return SR_OK;
 366 }
 367
 368 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 369 {
 370         struct dev_context *devc;
 371         struct sr_serial_dev_inst *serial;
 372
 373         if (sdi->status != SR_ST_ACTIVE)
 374                 return SR_ERR_DEV_CLOSED;
 375
 376         devc = sdi->priv;
 377
 378         std_session_send_df_header(sdi, LOG_PREFIX);
 379
 380         devc->starttime = g_get_monotonic_time();
 381         devc->num_samples = 0;
 382         devc->reply_pending = FALSE;
 383         devc->req_sent_at = 0;
 384         serial = sdi->conn;
 385         serial_source_add(sdi->session, serial, G_IO_IN,
 386                         KAXXXXP_POLL_INTERVAL_MS,
 387                         korad_kaxxxxp_receive_data, (void *)sdi);
 388
 389         return SR_OK;
 390 }
 391
 392 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
 393 {
 394         if (sdi->status != SR_ST_ACTIVE)
 395                 return SR_ERR_DEV_CLOSED;
 396
 397         return std_serial_dev_acquisition_stop(sdi,
 398                 std_serial_dev_close, sdi->conn, LOG_PREFIX);
 399 }
 400
 401 SR_PRIV struct sr_dev_driver korad_kaxxxxp_driver_info = {
 402         .name = "korad-kaxxxxp",
 403         .longname = "Korad KAxxxxP",
 404         .api_version = 1,
 405         .init = init,
 406         .cleanup = std_cleanup,
 407         .scan = scan,
 408         .dev_list = std_dev_list,
 409         .config_get = config_get,
 410         .config_set = config_set,
 411         .config_list = config_list,
 412         .dev_open = std_serial_dev_open,
 413         .dev_close = std_serial_dev_close,
 414         .dev_acquisition_start = dev_acquisition_start,
 415         .dev_acquisition_stop = dev_acquisition_stop,
 416         .context = NULL,
 417 };