src/hardware/uni-t-dmm/api.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2012-2013 Uwe Hermann <uwe@hermann-uwe.de>
   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 <stdlib.h>
  22 #include <string.h>
  23 #include "libsigrok.h"
  24 #include "libsigrok-internal.h"
  25 #include "protocol.h"
  26
  27 #define UNI_T_UT_D04_NEW "1a86.e008"
  28
  29 static const uint32_t scanopts[] = {
  30         SR_CONF_CONN,
  31 };
  32
  33 static const uint32_t devopts[] = {
  34         SR_CONF_MULTIMETER,
  35         SR_CONF_CONTINUOUS,
  36         SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
  37         SR_CONF_LIMIT_MSEC | SR_CONF_SET,
  38 };
  39
  40 SR_PRIV struct sr_dev_driver tecpel_dmm_8061_driver_info;
  41 SR_PRIV struct sr_dev_driver uni_t_ut60a_driver_info;
  42 SR_PRIV struct sr_dev_driver uni_t_ut60e_driver_info;
  43 SR_PRIV struct sr_dev_driver uni_t_ut60g_driver_info;
  44 SR_PRIV struct sr_dev_driver uni_t_ut61b_driver_info;
  45 SR_PRIV struct sr_dev_driver uni_t_ut61c_driver_info;
  46 SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info;
  47 SR_PRIV struct sr_dev_driver uni_t_ut61e_driver_info;
  48 SR_PRIV struct sr_dev_driver uni_t_ut71a_driver_info;
  49 SR_PRIV struct sr_dev_driver uni_t_ut71b_driver_info;
  50 SR_PRIV struct sr_dev_driver uni_t_ut71c_driver_info;
  51 SR_PRIV struct sr_dev_driver uni_t_ut71d_driver_info;
  52 SR_PRIV struct sr_dev_driver uni_t_ut71e_driver_info;
  53 SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info;
  54 SR_PRIV struct sr_dev_driver voltcraft_vc830_driver_info;
  55 SR_PRIV struct sr_dev_driver voltcraft_vc840_driver_info;
  56 SR_PRIV struct sr_dev_driver voltcraft_vc920_driver_info;
  57 SR_PRIV struct sr_dev_driver voltcraft_vc940_driver_info;
  58 SR_PRIV struct sr_dev_driver voltcraft_vc960_driver_info;
  59 SR_PRIV struct sr_dev_driver tenma_72_7745_driver_info;
  60 SR_PRIV struct sr_dev_driver tenma_72_7750_driver_info;
  61
  62 SR_PRIV struct dmm_info udmms[] = {
  63         {
  64                 "Tecpel", "DMM-8061", 2400,
  65                 FS9721_PACKET_SIZE,
  66                 sr_fs9721_packet_valid, sr_fs9721_parse,
  67                 sr_fs9721_00_temp_c,
  68                 &tecpel_dmm_8061_driver_info, receive_data_TECPEL_DMM_8061,
  69         },
  70         {
  71                 "UNI-T", "UT60A", 2400,
  72                 FS9721_PACKET_SIZE,
  73                 sr_fs9721_packet_valid, sr_fs9721_parse,
  74                 NULL,
  75                 &uni_t_ut60a_driver_info, receive_data_UNI_T_UT60A,
  76         },
  77         {
  78                 "UNI-T", "UT60E", 2400,
  79                 FS9721_PACKET_SIZE,
  80                 sr_fs9721_packet_valid, sr_fs9721_parse,
  81                 sr_fs9721_00_temp_c,
  82                 &uni_t_ut60e_driver_info, receive_data_UNI_T_UT60E,
  83         },
  84         {
  85                 /* The baudrate is actually 19230, see "Note 1" below. */
  86                 "UNI-T", "UT60G", 19200,
  87                 ES519XX_11B_PACKET_SIZE,
  88                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
  89                 NULL,
  90                 &uni_t_ut60g_driver_info, receive_data_UNI_T_UT60G,
  91         },
  92         {
  93                 "UNI-T", "UT61B", 2400,
  94                 FS9922_PACKET_SIZE,
  95                 sr_fs9922_packet_valid, sr_fs9922_parse,
  96                 NULL,
  97                 &uni_t_ut61b_driver_info, receive_data_UNI_T_UT61B,
  98         },
  99         {
 100                 "UNI-T", "UT61C", 2400,
 101                 FS9922_PACKET_SIZE,
 102                 sr_fs9922_packet_valid, sr_fs9922_parse,
 103                 NULL,
 104                 &uni_t_ut61c_driver_info, receive_data_UNI_T_UT61C,
 105         },
 106         {
 107                 "UNI-T", "UT61D", 2400,
 108                 FS9922_PACKET_SIZE,
 109                 sr_fs9922_packet_valid, sr_fs9922_parse,
 110                 NULL,
 111                 &uni_t_ut61d_driver_info, receive_data_UNI_T_UT61D,
 112         },
 113         {
 114                 /* The baudrate is actually 19230, see "Note 1" below. */
 115                 "UNI-T", "UT61E", 19200,
 116                 ES519XX_14B_PACKET_SIZE,
 117                 sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
 118                 NULL,
 119                 &uni_t_ut61e_driver_info, receive_data_UNI_T_UT61E,
 120         },
 121         {
 122                 "UNI-T", "UT71A", 2400, UT71X_PACKET_SIZE,
 123                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 124                 &uni_t_ut71a_driver_info, receive_data_UNI_T_UT71A,
 125         },
 126         {
 127                 "UNI-T", "UT71B", 2400, UT71X_PACKET_SIZE,
 128                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 129                 &uni_t_ut71b_driver_info, receive_data_UNI_T_UT71B,
 130         },
 131         {
 132                 "UNI-T", "UT71C", 2400, UT71X_PACKET_SIZE,
 133                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 134                 &uni_t_ut71c_driver_info, receive_data_UNI_T_UT71C,
 135         },
 136         {
 137                 "UNI-T", "UT71D", 2400, UT71X_PACKET_SIZE,
 138                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 139                 &uni_t_ut71d_driver_info, receive_data_UNI_T_UT71D,
 140         },
 141         {
 142                 "UNI-T", "UT71E", 2400, UT71X_PACKET_SIZE,
 143                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 144                 &uni_t_ut71e_driver_info, receive_data_UNI_T_UT71E,
 145         },
 146         {
 147                 "Voltcraft", "VC-820", 2400,
 148                 FS9721_PACKET_SIZE,
 149                 sr_fs9721_packet_valid, sr_fs9721_parse,
 150                 NULL,
 151                 &voltcraft_vc820_driver_info, receive_data_VOLTCRAFT_VC820,
 152         },
 153         {
 154                 /*
 155                  * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
 156                  * the FS9922 protocol. Instead, it only sets the user-defined
 157                  * bit "z1" to indicate "diode mode" and "voltage".
 158                  */
 159                 "Voltcraft", "VC-830", 2400,
 160                 FS9922_PACKET_SIZE,
 161                 sr_fs9922_packet_valid, sr_fs9922_parse,
 162                 &sr_fs9922_z1_diode,
 163                 &voltcraft_vc830_driver_info, receive_data_VOLTCRAFT_VC830,
 164         },
 165         {
 166                 "Voltcraft", "VC-840", 2400,
 167                 FS9721_PACKET_SIZE,
 168                 sr_fs9721_packet_valid, sr_fs9721_parse,
 169                 sr_fs9721_00_temp_c,
 170                 &voltcraft_vc840_driver_info, receive_data_VOLTCRAFT_VC840,
 171         },
 172         {
 173                 "Voltcraft", "VC-920", 2400, UT71X_PACKET_SIZE,
 174                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 175                 &voltcraft_vc920_driver_info, receive_data_VOLTCRAFT_VC920,
 176         },
 177         {
 178                 "Voltcraft", "VC-940", 2400, UT71X_PACKET_SIZE,
 179                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 180                 &voltcraft_vc940_driver_info, receive_data_VOLTCRAFT_VC940,
 181         },
 182         {
 183                 "Voltcraft", "VC-960", 2400, UT71X_PACKET_SIZE,
 184                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 185                 &voltcraft_vc960_driver_info, receive_data_VOLTCRAFT_VC960,
 186         },
 187         {
 188                 "Tenma", "72-7745", 2400,
 189                 FS9721_PACKET_SIZE,
 190                 sr_fs9721_packet_valid, sr_fs9721_parse,
 191                 sr_fs9721_00_temp_c,
 192                 &tenma_72_7745_driver_info, receive_data_TENMA_72_7745,
 193         },
 194         {
 195                 /* The baudrate is actually 19230, see "Note 1" below. */
 196                 "Tenma", "72-7750", 19200,
 197                 ES519XX_11B_PACKET_SIZE,
 198                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 199                 NULL,
 200                 &tenma_72_7750_driver_info, receive_data_TENMA_72_7750,
 201         },
 202 };
 203
 204 /*
 205  * Note 1: The actual baudrate of the Cyrustek ES519xx chip used in this DMM
 206  * is 19230. However, the WCH CH9325 chip (UART to USB/HID) used in (some
 207  * versions of) the UNI-T UT-D04 cable doesn't support 19230 baud. It only
 208  * supports 19200, and setting an unsupported baudrate will result in the
 209  * default of 2400 being used (which will not work with this DMM, of course).
 210  */
 211
 212 static int dev_clear(int dmm)
 213 {
 214         return std_dev_clear(udmms[dmm].di, NULL);
 215 }
 216
 217 static int init(struct sr_context *sr_ctx, int dmm)
 218 {
 219         return std_init(sr_ctx, udmms[dmm].di, LOG_PREFIX);
 220 }
 221
 222 static GSList *scan(GSList *options, int dmm)
 223 {
 224         GSList *usb_devices, *devices, *l;
 225         struct sr_dev_inst *sdi;
 226         struct dev_context *devc;
 227         struct drv_context *drvc;
 228         struct sr_usb_dev_inst *usb;
 229         struct sr_config *src;
 230         struct sr_channel *ch;
 231         const char *conn;
 232
 233         drvc = udmms[dmm].di->priv;
 234
 235         conn = NULL;
 236         for (l = options; l; l = l->next) {
 237                 src = l->data;
 238                 switch (src->key) {
 239                 case SR_CONF_CONN:
 240                         conn = g_variant_get_string(src->data, NULL);
 241                         break;
 242                 }
 243         }
 244         if (!conn)
 245                 return NULL;
 246
 247         devices = NULL;
 248         if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) {
 249                 g_slist_free_full(usb_devices, g_free);
 250                 return NULL;
 251         }
 252
 253         for (l = usb_devices; l; l = l->next) {
 254                 usb = l->data;
 255
 256                 if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) {
 257                         sr_err("Device context malloc failed.");
 258                         return NULL;
 259                 }
 260
 261                 devc->first_run = TRUE;
 262
 263                 sdi = sr_dev_inst_new();
 264                 sdi->status = SR_ST_INACTIVE;
 265                 sdi->vendor = g_strdup(udmms[dmm].vendor);
 266                 sdi->model = g_strdup(udmms[dmm].device);
 267                 sdi->priv = devc;
 268                 sdi->driver = udmms[dmm].di;
 269                 if (!(ch = sr_channel_new(0, SR_CHANNEL_ANALOG, TRUE, "P1")))
 270                         return NULL;
 271                 sdi->channels = g_slist_append(sdi->channels, ch);
 272
 273                 sdi->inst_type = SR_INST_USB;
 274                 sdi->conn = usb;
 275
 276                 drvc->instances = g_slist_append(drvc->instances, sdi);
 277                 devices = g_slist_append(devices, sdi);
 278         }
 279
 280         return devices;
 281 }
 282
 283 static GSList *dev_list(int dmm)
 284 {
 285         return ((struct drv_context *)(udmms[dmm].di->priv))->instances;
 286 }
 287
 288 static int dev_open(struct sr_dev_inst *sdi, int dmm)
 289 {
 290         struct drv_context *drvc;
 291         struct sr_usb_dev_inst *usb;
 292         int ret;
 293
 294         drvc = udmms[dmm].di->priv;
 295         usb = sdi->conn;
 296
 297         if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb)) == SR_OK)
 298                 sdi->status = SR_ST_ACTIVE;
 299
 300         return ret;
 301 }
 302
 303 static int dev_close(struct sr_dev_inst *sdi)
 304 {
 305         /* TODO */
 306
 307         sdi->status = SR_ST_INACTIVE;
 308
 309         return SR_OK;
 310 }
 311
 312 static int cleanup(int dmm)
 313 {
 314         return dev_clear(dmm);
 315 }
 316
 317 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 318                 const struct sr_channel_group *cg)
 319 {
 320         struct dev_context *devc;
 321
 322         (void)cg;
 323
 324         devc = sdi->priv;
 325
 326         switch (key) {
 327         case SR_CONF_LIMIT_MSEC:
 328                 if (g_variant_get_uint64(data) == 0) {
 329                         sr_err("Time limit cannot be 0.");
 330                         return SR_ERR;
 331                 }
 332                 devc->limit_msec = g_variant_get_uint64(data);
 333                 sr_dbg("Setting time limit to %" PRIu64 "ms.",
 334                        devc->limit_msec);
 335                 break;
 336         case SR_CONF_LIMIT_SAMPLES:
 337                 if (g_variant_get_uint64(data) == 0) {
 338                         sr_err("Sample limit cannot be 0.");
 339                         return SR_ERR;
 340                 }
 341                 devc->limit_samples = g_variant_get_uint64(data);
 342                 sr_dbg("Setting sample limit to %" PRIu64 ".",
 343                        devc->limit_samples);
 344                 break;
 345         default:
 346                 return SR_ERR_NA;
 347         }
 348
 349         return SR_OK;
 350 }
 351
 352 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 353                 const struct sr_channel_group *cg)
 354 {
 355         (void)sdi;
 356         (void)cg;
 357
 358         switch (key) {
 359         case SR_CONF_SCAN_OPTIONS:
 360                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 361                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 362                 break;
 363         case SR_CONF_DEVICE_OPTIONS:
 364                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 365                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 366                 break;
 367         default:
 368                 return SR_ERR_NA;
 369         }
 370
 371         return SR_OK;
 372 }
 373
 374 static int dev_acquisition_start(const struct sr_dev_inst *sdi,
 375                                     void *cb_data, int dmm)
 376 {
 377         struct dev_context *devc;
 378
 379         devc = sdi->priv;
 380
 381         devc->cb_data = cb_data;
 382
 383         devc->starttime = g_get_monotonic_time();
 384
 385         /* Send header packet to the session bus. */
 386         std_session_send_df_header(sdi, LOG_PREFIX);
 387
 388         sr_session_source_add(sdi->session, 0, 0, 10 /* poll_timeout */,
 389                       udmms[dmm].receive_data, (void *)sdi);
 390
 391         return SR_OK;
 392 }
 393
 394 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 395 {
 396         struct sr_datafeed_packet packet;
 397
 398         (void)cb_data;
 399
 400         sr_dbg("Stopping acquisition.");
 401
 402         /* Send end packet to the session bus. */
 403         sr_dbg("Sending SR_DF_END.");
 404         packet.type = SR_DF_END;
 405         sr_session_send(sdi, &packet);
 406
 407         sr_session_source_remove(sdi->session, 0);
 408
 409         return SR_OK;
 410 }
 411
 412 /* Driver-specific API function wrappers */
 413 #define HW_INIT(X) \
 414 static int init_##X(struct sr_context *sr_ctx) { return init(sr_ctx, X); }
 415 #define HW_CLEANUP(X) \
 416 static int cleanup_##X(void) { return cleanup(X); }
 417 #define HW_SCAN(X) \
 418 static GSList *scan_##X(GSList *options) { return scan(options, X); }
 419 #define HW_DEV_LIST(X) \
 420 static GSList *dev_list_##X(void) { return dev_list(X); }
 421 #define HW_DEV_CLEAR(X) \
 422 static int dev_clear_##X(void) { return dev_clear(X); }
 423 #define HW_DEV_ACQUISITION_START(X) \
 424 static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \
 425 void *cb_data) { return dev_acquisition_start(sdi, cb_data, X); }
 426 #define HW_DEV_OPEN(X) \
 427 static int dev_open_##X(struct sr_dev_inst *sdi) { return dev_open(sdi, X); }
 428
 429 /* Driver structs and API function wrappers */
 430 #define DRV(ID, ID_UPPER, NAME, LONGNAME) \
 431 HW_INIT(ID_UPPER) \
 432 HW_CLEANUP(ID_UPPER) \
 433 HW_SCAN(ID_UPPER) \
 434 HW_DEV_LIST(ID_UPPER) \
 435 HW_DEV_CLEAR(ID_UPPER) \
 436 HW_DEV_ACQUISITION_START(ID_UPPER) \
 437 HW_DEV_OPEN(ID_UPPER) \
 438 SR_PRIV struct sr_dev_driver ID##_driver_info = { \
 439         .name = NAME, \
 440         .longname = LONGNAME, \
 441         .api_version = 1, \
 442         .init = init_##ID_UPPER, \
 443         .cleanup = cleanup_##ID_UPPER, \
 444         .scan = scan_##ID_UPPER, \
 445         .dev_list = dev_list_##ID_UPPER, \
 446         .dev_clear = dev_clear_##ID_UPPER, \
 447         .config_get = NULL, \
 448         .config_set = config_set, \
 449         .config_list = config_list, \
 450         .dev_open = dev_open_##ID_UPPER, \
 451         .dev_close = dev_close, \
 452         .dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \
 453         .dev_acquisition_stop = dev_acquisition_stop, \
 454         .priv = NULL, \
 455 };
 456
 457 DRV(tecpel_dmm_8061, TECPEL_DMM_8061, "tecpel-dmm-8061", "Tecpel DMM-8061")
 458 DRV(uni_t_ut60a, UNI_T_UT60A, "uni-t-ut60a", "UNI-T UT60A")
 459 DRV(uni_t_ut60e, UNI_T_UT60E, "uni-t-ut60e", "UNI-T UT60E")
 460 DRV(uni_t_ut60g, UNI_T_UT60G, "uni-t-ut60g", "UNI-T UT60G")
 461 DRV(uni_t_ut61b, UNI_T_UT61B, "uni-t-ut61b", "UNI-T UT61B")
 462 DRV(uni_t_ut61c, UNI_T_UT61C, "uni-t-ut61c", "UNI-T UT61C")
 463 DRV(uni_t_ut61d, UNI_T_UT61D, "uni-t-ut61d", "UNI-T UT61D")
 464 DRV(uni_t_ut61e, UNI_T_UT61E, "uni-t-ut61e", "UNI-T UT61E")
 465 DRV(uni_t_ut71a, UNI_T_UT71A, "uni-t-ut71a", "UNI-T UT71A")
 466 DRV(uni_t_ut71b, UNI_T_UT71B, "uni-t-ut71b", "UNI-T UT71B")
 467 DRV(uni_t_ut71c, UNI_T_UT71C, "uni-t-ut71c", "UNI-T UT71C")
 468 DRV(uni_t_ut71d, UNI_T_UT71D, "uni-t-ut71d", "UNI-T UT71D")
 469 DRV(uni_t_ut71e, UNI_T_UT71E, "uni-t-ut71e", "UNI-T UT71E")
 470 DRV(voltcraft_vc820, VOLTCRAFT_VC820, "voltcraft-vc820", "Voltcraft VC-820")
 471 DRV(voltcraft_vc830, VOLTCRAFT_VC830, "voltcraft-vc830", "Voltcraft VC-830")
 472 DRV(voltcraft_vc840, VOLTCRAFT_VC840, "voltcraft-vc840", "Voltcraft VC-840")
 473 DRV(voltcraft_vc920, VOLTCRAFT_VC920, "voltcraft-vc920", "Voltcraft VC-920")
 474 DRV(voltcraft_vc940, VOLTCRAFT_VC940, "voltcraft-vc940", "Voltcraft VC-940")
 475 DRV(voltcraft_vc960, VOLTCRAFT_VC960, "voltcraft-vc960", "Voltcraft VC-960")
 476 DRV(tenma_72_7745, TENMA_72_7745, "tenma-72-7745", "Tenma 72-7745")
 477 DRV(tenma_72_7750, TENMA_72_7750, "tenma-72-7750", "Tenma 72-7750")