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 <config.h>
  22 #include <stdlib.h>
  23 #include <string.h>
  24 #include <libsigrok/libsigrok.h>
  25 #include "libsigrok-internal.h"
  26 #include "protocol.h"
  27
  28 #define UNI_T_UT_D04_NEW "1a86.e008"
  29
  30 static const uint32_t scanopts[] = {
  31         SR_CONF_CONN,
  32 };
  33
  34 static const uint32_t devopts[] = {
  35         SR_CONF_MULTIMETER,
  36         SR_CONF_CONTINUOUS,
  37         SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
  38         SR_CONF_LIMIT_MSEC | SR_CONF_SET,
  39 };
  40
  41 /*
  42  * Note 1: The actual baudrate of the Cyrustek ES519xx chip used in this DMM
  43  * is 19230. However, the WCH CH9325 chip (UART to USB/HID) used in (some
  44  * versions of) the UNI-T UT-D04 cable doesn't support 19230 baud. It only
  45  * supports 19200, and setting an unsupported baudrate will result in the
  46  * default of 2400 being used (which will not work with this DMM, of course).
  47  */
  48
  49 static int dev_clear(const struct sr_dev_driver *di)
  50 {
  51         return std_dev_clear(di, NULL);
  52 }
  53
  54 static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx)
  55 {
  56         return std_init(sr_ctx, di, LOG_PREFIX);
  57 }
  58
  59 static GSList *scan(struct sr_dev_driver *di, GSList *options)
  60 {
  61         GSList *usb_devices, *devices, *l;
  62         struct sr_dev_inst *sdi;
  63         struct dev_context *devc;
  64         struct drv_context *drvc;
  65         struct dmm_info *dmm;
  66         struct sr_usb_dev_inst *usb;
  67         struct sr_config *src;
  68         const char *conn;
  69
  70         drvc = di->context;
  71         dmm = (struct dmm_info *)di;
  72
  73         conn = NULL;
  74         for (l = options; l; l = l->next) {
  75                 src = l->data;
  76                 switch (src->key) {
  77                 case SR_CONF_CONN:
  78                         conn = g_variant_get_string(src->data, NULL);
  79                         break;
  80                 }
  81         }
  82         if (!conn)
  83                 return NULL;
  84
  85         devices = NULL;
  86         if (!(usb_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn))) {
  87                 g_slist_free_full(usb_devices, g_free);
  88                 return NULL;
  89         }
  90
  91         for (l = usb_devices; l; l = l->next) {
  92                 usb = l->data;
  93                 devc = g_malloc0(sizeof(struct dev_context));
  94                 devc->first_run = TRUE;
  95                 sdi = g_malloc0(sizeof(struct sr_dev_inst));
  96                 sdi->status = SR_ST_INACTIVE;
  97                 sdi->vendor = g_strdup(dmm->vendor);
  98                 sdi->model = g_strdup(dmm->device);
  99                 sdi->priv = devc;
 100                 sdi->driver = di;
 101                 sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 102                 sdi->inst_type = SR_INST_USB;
 103                 sdi->conn = usb;
 104                 drvc->instances = g_slist_append(drvc->instances, sdi);
 105                 devices = g_slist_append(devices, sdi);
 106         }
 107
 108         return devices;
 109 }
 110
 111 static GSList *dev_list(const struct sr_dev_driver *di)
 112 {
 113         return ((struct drv_context *)(di->context))->instances;
 114 }
 115
 116 static int dev_open(struct sr_dev_inst *sdi)
 117 {
 118         struct sr_dev_driver *di;
 119         struct drv_context *drvc;
 120         struct sr_usb_dev_inst *usb;
 121         int ret;
 122
 123         di = sdi->driver;
 124         drvc = di->context;
 125         usb = sdi->conn;
 126
 127         if ((ret = sr_usb_open(drvc->sr_ctx->libusb_ctx, usb)) == SR_OK)
 128                 sdi->status = SR_ST_ACTIVE;
 129
 130         return ret;
 131 }
 132
 133 static int dev_close(struct sr_dev_inst *sdi)
 134 {
 135         /* TODO */
 136
 137         sdi->status = SR_ST_INACTIVE;
 138
 139         return SR_OK;
 140 }
 141
 142 static int cleanup(const struct sr_dev_driver *di)
 143 {
 144         return dev_clear(di);
 145 }
 146
 147 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 148                 const struct sr_channel_group *cg)
 149 {
 150         struct dev_context *devc;
 151
 152         (void)cg;
 153
 154         devc = sdi->priv;
 155
 156         switch (key) {
 157         case SR_CONF_LIMIT_MSEC:
 158                 devc->limit_msec = g_variant_get_uint64(data);
 159                 break;
 160         case SR_CONF_LIMIT_SAMPLES:
 161                 devc->limit_samples = g_variant_get_uint64(data);
 162                 break;
 163         default:
 164                 return SR_ERR_NA;
 165         }
 166
 167         return SR_OK;
 168 }
 169
 170 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 171                 const struct sr_channel_group *cg)
 172 {
 173         (void)sdi;
 174         (void)cg;
 175
 176         switch (key) {
 177         case SR_CONF_SCAN_OPTIONS:
 178                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 179                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 180                 break;
 181         case SR_CONF_DEVICE_OPTIONS:
 182                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 183                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 184                 break;
 185         default:
 186                 return SR_ERR_NA;
 187         }
 188
 189         return SR_OK;
 190 }
 191
 192 static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 193 {
 194         struct dev_context *devc;
 195
 196         devc = sdi->priv;
 197
 198         devc->cb_data = cb_data;
 199
 200         devc->starttime = g_get_monotonic_time();
 201
 202         /* Send header packet to the session bus. */
 203         std_session_send_df_header(sdi, LOG_PREFIX);
 204
 205         sr_session_source_add(sdi->session, -1, 0, 10 /* poll_timeout */,
 206                       uni_t_dmm_receive_data, (void *)sdi);
 207
 208         return SR_OK;
 209 }
 210
 211 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 212 {
 213         struct sr_datafeed_packet packet;
 214
 215         (void)cb_data;
 216
 217         sr_dbg("Stopping acquisition.");
 218
 219         /* Send end packet to the session bus. */
 220         sr_dbg("Sending SR_DF_END.");
 221         packet.type = SR_DF_END;
 222         sr_session_send(sdi, &packet);
 223
 224         sr_session_source_remove(sdi->session, -1);
 225
 226         return SR_OK;
 227 }
 228
 229 #define DMM(ID, CHIPSET, VENDOR, MODEL, BAUDRATE, PACKETSIZE, \
 230                         VALID, PARSE, DETAILS) \
 231     &(struct dmm_info) { \
 232                 { \
 233                         .name = ID, \
 234                         .longname = VENDOR " " MODEL, \
 235                         .api_version = 1, \
 236                         .init = init, \
 237                         .cleanup = cleanup, \
 238                         .scan = scan, \
 239                         .dev_list = dev_list, \
 240                         .dev_clear = dev_clear, \
 241                         .config_get = NULL, \
 242                         .config_set = config_set, \
 243                         .config_list = config_list, \
 244                         .dev_open = dev_open, \
 245                         .dev_close = dev_close, \
 246                         .dev_acquisition_start = dev_acquisition_start, \
 247                         .dev_acquisition_stop = dev_acquisition_stop, \
 248                         .context = NULL, \
 249                 }, \
 250                 VENDOR, MODEL, BAUDRATE, PACKETSIZE, \
 251                 VALID, PARSE, DETAILS, sizeof(struct CHIPSET##_info) \
 252         }
 253
 254 SR_PRIV const struct dmm_info *uni_t_dmm_drivers[] = {
 255         DMM(
 256                 "tecpel-dmm-8061", fs9721,
 257                 "Tecpel", "DMM-8061", 2400,
 258                 FS9721_PACKET_SIZE,
 259                 sr_fs9721_packet_valid, sr_fs9721_parse,
 260                 sr_fs9721_00_temp_c
 261         ),
 262         DMM(
 263                 "uni-t-ut372", ut372,
 264                 "UNI-T", "UT372", 2400,
 265                 UT372_PACKET_SIZE,
 266                 sr_ut372_packet_valid, sr_ut372_parse,
 267                 NULL
 268         ),
 269         DMM(
 270                 "uni-t-ut60a", fs9721,
 271                 "UNI-T", "UT60A", 2400,
 272                 FS9721_PACKET_SIZE,
 273                 sr_fs9721_packet_valid, sr_fs9721_parse,
 274                 NULL
 275         ),
 276         DMM(
 277                 "uni-t-ut60e", fs9721,
 278                 "UNI-T", "UT60E", 2400,
 279                 FS9721_PACKET_SIZE,
 280                 sr_fs9721_packet_valid, sr_fs9721_parse,
 281                 sr_fs9721_00_temp_c
 282         ),
 283         DMM(
 284                 "uni-t-ut60g", es519xx,
 285                 /* The baudrate is actually 19230, see "Note 1" below. */
 286                 "UNI-T", "UT60G", 19200,
 287                 ES519XX_11B_PACKET_SIZE,
 288                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 289                 NULL
 290         ),
 291         DMM(
 292                 "uni-t-ut61b", fs9922,
 293                 "UNI-T", "UT61B", 2400,
 294                 FS9922_PACKET_SIZE,
 295                 sr_fs9922_packet_valid, sr_fs9922_parse,
 296                 NULL
 297         ),
 298         DMM(
 299                 "uni-t-ut61c", fs9922,
 300                 "UNI-T", "UT61C", 2400,
 301                 FS9922_PACKET_SIZE,
 302                 sr_fs9922_packet_valid, sr_fs9922_parse,
 303                 NULL
 304         ),
 305         DMM(
 306                 "uni-t-ut61d", fs9922,
 307                 "UNI-T", "UT61D", 2400,
 308                 FS9922_PACKET_SIZE,
 309                 sr_fs9922_packet_valid, sr_fs9922_parse,
 310                 NULL
 311         ),
 312         DMM(
 313                 "uni-t-ut61e", es519xx,
 314                 /* The baudrate is actually 19230, see "Note 1" below. */
 315                 "UNI-T", "UT61E", 19200,
 316                 ES519XX_14B_PACKET_SIZE,
 317                 sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
 318                 NULL
 319         ),
 320         DMM(
 321                 "uni-t-ut71a", ut71x,
 322                 "UNI-T", "UT71A", 2400, UT71X_PACKET_SIZE,
 323                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 324         ),
 325         DMM(
 326                 "uni-t-ut71b", ut71x,
 327                 "UNI-T", "UT71B", 2400, UT71X_PACKET_SIZE,
 328                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 329         ),
 330         DMM(
 331                 "uni-t-ut71c", ut71x,
 332                 "UNI-T", "UT71C", 2400, UT71X_PACKET_SIZE,
 333                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 334         ),
 335         DMM(
 336                 "uni-t-ut71d", ut71x,
 337                 "UNI-T", "UT71D", 2400, UT71X_PACKET_SIZE,
 338                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 339         ),
 340         DMM(
 341                 "uni-t-ut71e", ut71x,
 342                 "UNI-T", "UT71E", 2400, UT71X_PACKET_SIZE,
 343                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 344         ),
 345         DMM(
 346                 "voltcraft-vc820", fs9721,
 347                 "Voltcraft", "VC-820", 2400,
 348                 FS9721_PACKET_SIZE,
 349                 sr_fs9721_packet_valid, sr_fs9721_parse,
 350                 NULL
 351         ),
 352         DMM(
 353                 "voltcraft-vc830", fs9922,
 354                 /*
 355                  * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
 356                  * the FS9922 protocol. Instead, it only sets the user-defined
 357                  * bit "z1" to indicate "diode mode" and "voltage".
 358                  */
 359                 "Voltcraft", "VC-830", 2400,
 360                 FS9922_PACKET_SIZE,
 361                 sr_fs9922_packet_valid, sr_fs9922_parse,
 362                 &sr_fs9922_z1_diode
 363         ),
 364         DMM(
 365                 "voltcraft-vc840", fs9721,
 366                 "Voltcraft", "VC-840", 2400,
 367                 FS9721_PACKET_SIZE,
 368                 sr_fs9721_packet_valid, sr_fs9721_parse,
 369                 sr_fs9721_00_temp_c
 370         ),
 371         DMM(
 372                 "voltcraft-vc870", vc870,
 373                 "Voltcraft", "VC-870", 9600, VC870_PACKET_SIZE,
 374                 sr_vc870_packet_valid, sr_vc870_parse, NULL
 375         ),
 376         DMM(
 377                 "voltcraft-vc920", ut71x,
 378                 "Voltcraft", "VC-920", 2400, UT71X_PACKET_SIZE,
 379                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 380         ),
 381         DMM(
 382                 "voltcraft-vc940", ut71x,
 383                 "Voltcraft", "VC-940", 2400, UT71X_PACKET_SIZE,
 384                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 385         ),
 386         DMM(
 387                 "voltcraft-vc960", ut71x,
 388                 "Voltcraft", "VC-960", 2400, UT71X_PACKET_SIZE,
 389                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 390         ),
 391         DMM(
 392                 "tenma-72-7730", ut71x,
 393                 "Tenma", "72-7730", 2400,
 394                 UT71X_PACKET_SIZE,
 395                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 396         ),
 397         DMM(
 398                 "tenma-72-9380a", ut71x,
 399                 "Tenma", "72-9380A", 2400,
 400                 UT71X_PACKET_SIZE,
 401                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL
 402         ),
 403         DMM(
 404                 "tenma-72-7745", es519xx,
 405                 "Tenma", "72-7745", 2400,
 406                 FS9721_PACKET_SIZE,
 407                 sr_fs9721_packet_valid, sr_fs9721_parse,
 408                 sr_fs9721_00_temp_c
 409         ),
 410         DMM(
 411                 "tenma-72-7750", es519xx,
 412                 /* The baudrate is actually 19230, see "Note 1" below. */
 413                 "Tenma", "72-7750", 19200,
 414                 ES519XX_11B_PACKET_SIZE,
 415                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 416                 NULL
 417         ),
 418         NULL
 419 };