src/hardware/serial-dmm/api.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2012 Bert Vermeulen <bert@biot.com>
   5  * Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com>
   6  * Copyright (C) 2012 Uwe Hermann <uwe@hermann-uwe.de>
   7  *
   8  * This program is free software: you can redistribute it and/or modify
   9  * it under the terms of the GNU General Public License as published by
  10  * the Free Software Foundation, either version 3 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20  */
  21
  22 #include <sys/types.h>
  23 #include <sys/stat.h>
  24 #include <fcntl.h>
  25 #include <string.h>
  26 #include <errno.h>
  27 #include <glib.h>
  28 #include "libsigrok.h"
  29 #include "libsigrok-internal.h"
  30 #include "protocol.h"
  31
  32 static const uint32_t scanopts[] = {
  33         SR_CONF_CONN,
  34         SR_CONF_SERIALCOMM,
  35 };
  36
  37 static const uint32_t devopts[] = {
  38         SR_CONF_MULTIMETER,
  39         SR_CONF_CONTINUOUS,
  40         SR_CONF_LIMIT_SAMPLES | SR_CONF_SET,
  41         SR_CONF_LIMIT_MSEC | SR_CONF_SET,
  42 };
  43
  44 SR_PRIV struct sr_dev_driver bbcgm_m2110_driver_info;
  45 SR_PRIV struct sr_dev_driver digitek_dt4000zc_driver_info;
  46 SR_PRIV struct sr_dev_driver tekpower_tp4000zc_driver_info;
  47 SR_PRIV struct sr_dev_driver metex_me31_driver_info;
  48 SR_PRIV struct sr_dev_driver peaktech_3410_driver_info;
  49 SR_PRIV struct sr_dev_driver mastech_mas345_driver_info;
  50 SR_PRIV struct sr_dev_driver mastech_ms8250b_driver_info;
  51 SR_PRIV struct sr_dev_driver va_va18b_driver_info;
  52 SR_PRIV struct sr_dev_driver va_va40b_driver_info;
  53 SR_PRIV struct sr_dev_driver metex_m3640d_driver_info;
  54 SR_PRIV struct sr_dev_driver metex_m4650cr_driver_info;
  55 SR_PRIV struct sr_dev_driver peaktech_4370_driver_info;
  56 SR_PRIV struct sr_dev_driver pce_pce_dm32_driver_info;
  57 SR_PRIV struct sr_dev_driver radioshack_22_168_driver_info;
  58 SR_PRIV struct sr_dev_driver radioshack_22_805_driver_info;
  59 SR_PRIV struct sr_dev_driver radioshack_22_812_driver_info;
  60 SR_PRIV struct sr_dev_driver tecpel_dmm_8061_ser_driver_info;
  61 SR_PRIV struct sr_dev_driver voltcraft_m3650cr_driver_info;
  62 SR_PRIV struct sr_dev_driver voltcraft_m3650d_driver_info;
  63 SR_PRIV struct sr_dev_driver voltcraft_m4650cr_driver_info;
  64 SR_PRIV struct sr_dev_driver voltcraft_me42_driver_info;
  65 SR_PRIV struct sr_dev_driver voltcraft_vc820_ser_driver_info;
  66 SR_PRIV struct sr_dev_driver voltcraft_vc830_ser_driver_info;
  67 SR_PRIV struct sr_dev_driver voltcraft_vc840_ser_driver_info;
  68 SR_PRIV struct sr_dev_driver voltcraft_vc870_ser_driver_info;
  69 SR_PRIV struct sr_dev_driver voltcraft_vc920_ser_driver_info;
  70 SR_PRIV struct sr_dev_driver voltcraft_vc940_ser_driver_info;
  71 SR_PRIV struct sr_dev_driver voltcraft_vc960_ser_driver_info;
  72 SR_PRIV struct sr_dev_driver uni_t_ut60a_ser_driver_info;
  73 SR_PRIV struct sr_dev_driver uni_t_ut60e_ser_driver_info;
  74 SR_PRIV struct sr_dev_driver uni_t_ut60g_ser_driver_info;
  75 SR_PRIV struct sr_dev_driver uni_t_ut61b_ser_driver_info;
  76 SR_PRIV struct sr_dev_driver uni_t_ut61c_ser_driver_info;
  77 SR_PRIV struct sr_dev_driver uni_t_ut61d_ser_driver_info;
  78 SR_PRIV struct sr_dev_driver uni_t_ut61e_ser_driver_info;
  79 SR_PRIV struct sr_dev_driver uni_t_ut71a_ser_driver_info;
  80 SR_PRIV struct sr_dev_driver uni_t_ut71b_ser_driver_info;
  81 SR_PRIV struct sr_dev_driver uni_t_ut71c_ser_driver_info;
  82 SR_PRIV struct sr_dev_driver uni_t_ut71d_ser_driver_info;
  83 SR_PRIV struct sr_dev_driver uni_t_ut71e_ser_driver_info;
  84 SR_PRIV struct sr_dev_driver iso_tech_idm103n_driver_info;
  85 SR_PRIV struct sr_dev_driver tenma_72_7745_ser_driver_info;
  86 SR_PRIV struct sr_dev_driver tenma_72_7750_ser_driver_info;
  87 SR_PRIV struct sr_dev_driver brymen_bm25x_driver_info;
  88
  89 SR_PRIV struct dmm_info dmms[] = {
  90         {
  91                 "BBC Goertz Metrawatt", "M2110", "1200/7n2", 1200,
  92                 BBCGM_M2110_PACKET_SIZE, 0, 0, NULL,
  93                 sr_m2110_packet_valid, sr_m2110_parse,
  94                 NULL,
  95                 &bbcgm_m2110_driver_info, receive_data_BBCGM_M2110,
  96         },
  97         {
  98                 "Digitek", "DT4000ZC", "2400/8n1/dtr=1", 2400,
  99                 FS9721_PACKET_SIZE, 0, 0, NULL,
 100                 sr_fs9721_packet_valid, sr_fs9721_parse,
 101                 sr_fs9721_10_temp_c,
 102                 &digitek_dt4000zc_driver_info, receive_data_DIGITEK_DT4000ZC,
 103         },
 104         {
 105                 "TekPower", "TP4000ZC", "2400/8n1/dtr=1", 2400,
 106                 FS9721_PACKET_SIZE, 0, 0, NULL,
 107                 sr_fs9721_packet_valid, sr_fs9721_parse,
 108                 sr_fs9721_10_temp_c,
 109                 &tekpower_tp4000zc_driver_info, receive_data_TEKPOWER_TP4000ZC,
 110         },
 111         {
 112                 "Metex", "ME-31", "600/7n2/rts=0/dtr=1", 600,
 113                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 114                 sr_metex14_packet_valid, sr_metex14_parse,
 115                 NULL,
 116                 &metex_me31_driver_info, receive_data_METEX_ME31,
 117         },
 118         {
 119                 "Peaktech", "3410", "600/7n2/rts=0/dtr=1", 600,
 120                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 121                 sr_metex14_packet_valid, sr_metex14_parse,
 122                 NULL,
 123                 &peaktech_3410_driver_info, receive_data_PEAKTECH_3410,
 124         },
 125         {
 126                 "MASTECH", "MAS345", "600/7n2/rts=0/dtr=1", 600,
 127                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 128                 sr_metex14_packet_valid, sr_metex14_parse,
 129                 NULL,
 130                 &mastech_mas345_driver_info, receive_data_MASTECH_MAS345,
 131         },
 132         {
 133                 "MASTECH", "MS8250B", "2400/8n1/rts=0/dtr=1",
 134                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 135                 sr_fs9721_packet_valid, sr_fs9721_parse,
 136                 NULL,
 137                 &mastech_ms8250b_driver_info, receive_data_MASTECH_MS8250B,
 138         },
 139         {
 140                 "V&A", "VA18B", "2400/8n1", 2400,
 141                 FS9721_PACKET_SIZE, 0, 0, NULL,
 142                 sr_fs9721_packet_valid, sr_fs9721_parse,
 143                 sr_fs9721_01_temp_c,
 144                 &va_va18b_driver_info, receive_data_VA_VA18B,
 145         },
 146         {
 147                 "V&A", "VA40B", "2400/8n1", 2400,
 148                 FS9721_PACKET_SIZE, 0, 0, NULL,
 149                 sr_fs9721_packet_valid, sr_fs9721_parse,
 150                 sr_fs9721_max_c_min,
 151                 &va_va40b_driver_info, receive_data_VA_VA40B,
 152         },
 153         {
 154                 "Metex", "M-3640D", "1200/7n2/rts=0/dtr=1", 1200,
 155                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 156                 sr_metex14_packet_valid, sr_metex14_parse,
 157                 NULL,
 158                 &metex_m3640d_driver_info, receive_data_METEX_M3640D,
 159         },
 160         {
 161                 "Metex", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 162                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 163                 sr_metex14_packet_valid, sr_metex14_parse,
 164                 NULL,
 165                 &metex_m4650cr_driver_info, receive_data_METEX_M4650CR,
 166         },
 167         {
 168                 "PeakTech", "4370", "1200/7n2/rts=0/dtr=1", 1200,
 169                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 170                 sr_metex14_packet_valid, sr_metex14_parse,
 171                 NULL,
 172                 &peaktech_4370_driver_info, receive_data_PEAKTECH_4370,
 173         },
 174         {
 175                 "PCE", "PCE-DM32", "2400/8n1", 2400,
 176                 FS9721_PACKET_SIZE, 0, 0, NULL,
 177                 sr_fs9721_packet_valid, sr_fs9721_parse,
 178                 sr_fs9721_01_10_temp_f_c,
 179                 &pce_pce_dm32_driver_info, receive_data_PCE_PCE_DM32,
 180         },
 181         {
 182                 "RadioShack", "22-168", "1200/7n2/rts=0/dtr=1", 1200,
 183                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 184                 sr_metex14_packet_valid, sr_metex14_parse,
 185                 NULL,
 186                 &radioshack_22_168_driver_info, receive_data_RADIOSHACK_22_168,
 187         },
 188         {
 189                 "RadioShack", "22-805", "600/7n2/rts=0/dtr=1", 600,
 190                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 191                 sr_metex14_packet_valid, sr_metex14_parse,
 192                 NULL,
 193                 &radioshack_22_805_driver_info, receive_data_RADIOSHACK_22_805,
 194         },
 195         {
 196                 "RadioShack", "22-812", "4800/8n1/rts=0/dtr=1", 4800,
 197                 RS9LCD_PACKET_SIZE, 0, 0, NULL,
 198                 sr_rs9lcd_packet_valid, sr_rs9lcd_parse,
 199                 NULL,
 200                 &radioshack_22_812_driver_info, receive_data_RADIOSHACK_22_812,
 201         },
 202         {
 203                 "Tecpel", "DMM-8061 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 204                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 205                 sr_fs9721_packet_valid, sr_fs9721_parse,
 206                 sr_fs9721_00_temp_c,
 207                 &tecpel_dmm_8061_ser_driver_info,
 208                 receive_data_TECPEL_DMM_8061_SER,
 209         },
 210         {
 211                 "Voltcraft", "M-3650CR", "1200/7n2/rts=0/dtr=1", 1200,
 212                 METEX14_PACKET_SIZE, 150, 20, sr_metex14_packet_request,
 213                 sr_metex14_packet_valid, sr_metex14_parse,
 214                 NULL,
 215                 &voltcraft_m3650cr_driver_info, receive_data_VOLTCRAFT_M3650CR,
 216         },
 217         {
 218                 "Voltcraft", "M-3650D", "1200/7n2/rts=0/dtr=1", 1200,
 219                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 220                 sr_metex14_packet_valid, sr_metex14_parse,
 221                 NULL,
 222                 &voltcraft_m3650d_driver_info, receive_data_VOLTCRAFT_M3650D,
 223         },
 224         {
 225                 "Voltcraft", "M-4650CR", "1200/7n2/rts=0/dtr=1", 1200,
 226                 METEX14_PACKET_SIZE, 0, 0, sr_metex14_packet_request,
 227                 sr_metex14_packet_valid, sr_metex14_parse,
 228                 NULL,
 229                 &voltcraft_m4650cr_driver_info, receive_data_VOLTCRAFT_M4650CR,
 230         },
 231         {
 232                 "Voltcraft", "ME-42", "600/7n2/rts=0/dtr=1", 600,
 233                 METEX14_PACKET_SIZE, 250, 60, sr_metex14_packet_request,
 234                 sr_metex14_packet_valid, sr_metex14_parse,
 235                 NULL,
 236                 &voltcraft_me42_driver_info, receive_data_VOLTCRAFT_ME42,
 237         },
 238         {
 239                 "Voltcraft", "VC-820 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 240                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 241                 sr_fs9721_packet_valid, sr_fs9721_parse,
 242                 NULL,
 243                 &voltcraft_vc820_ser_driver_info,
 244                 receive_data_VOLTCRAFT_VC820_SER,
 245         },
 246         {
 247                 /*
 248                  * Note: The VC830 doesn't set the 'volt' and 'diode' bits of
 249                  * the FS9922 protocol. Instead, it only sets the user-defined
 250                  * bit "z1" to indicate "diode mode" and "voltage".
 251                  */
 252                 "Voltcraft", "VC-830 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 253                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 254                 sr_fs9922_packet_valid, sr_fs9922_parse,
 255                 &sr_fs9922_z1_diode,
 256                 &voltcraft_vc830_ser_driver_info,
 257                 receive_data_VOLTCRAFT_VC830_SER,
 258         },
 259         {
 260                 "Voltcraft", "VC-840 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 261                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 262                 sr_fs9721_packet_valid, sr_fs9721_parse,
 263                 sr_fs9721_00_temp_c,
 264                 &voltcraft_vc840_ser_driver_info,
 265                 receive_data_VOLTCRAFT_VC840_SER,
 266         },
 267         {
 268                 "Voltcraft", "VC-870 (UT-D02 cable)", "9600/8n1/rts=0/dtr=1",
 269                 9600, VC870_PACKET_SIZE, 0, 0, NULL,
 270                 sr_vc870_packet_valid, sr_vc870_parse,
 271                 NULL,
 272                 &voltcraft_vc870_ser_driver_info, receive_data_VOLTCRAFT_VC870_SER,
 273         },
 274         {
 275                 "Voltcraft", "VC-920 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 276                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 277                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 278                 &voltcraft_vc920_ser_driver_info,
 279                 receive_data_VOLTCRAFT_VC920_SER,
 280         },
 281         {
 282                 "Voltcraft", "VC-940 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 283                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 284                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 285                 &voltcraft_vc940_ser_driver_info,
 286                 receive_data_VOLTCRAFT_VC940_SER,
 287         },
 288         {
 289                 "Voltcraft", "VC-960 (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 290                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 291                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 292                 &voltcraft_vc960_ser_driver_info,
 293                 receive_data_VOLTCRAFT_VC960_SER,
 294         },
 295         {
 296                 "UNI-T", "UT60A (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 297                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 298                 sr_fs9721_packet_valid, sr_fs9721_parse,
 299                 NULL,
 300                 &uni_t_ut60a_ser_driver_info,
 301                 receive_data_UNI_T_UT60A_SER,
 302         },
 303         {
 304                 "UNI-T", "UT60E (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 305                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 306                 sr_fs9721_packet_valid, sr_fs9721_parse,
 307                 sr_fs9721_00_temp_c,
 308                 &uni_t_ut60e_ser_driver_info,
 309                 receive_data_UNI_T_UT60E_SER,
 310         },
 311         {
 312                 /* Note: ES51986 baudrate is actually 19230! */
 313                 "UNI-T", "UT60G (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 314                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 315                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 316                 NULL,
 317                 &uni_t_ut60g_ser_driver_info, receive_data_UNI_T_UT60G_SER,
 318         },
 319         {
 320                 "UNI-T", "UT61B (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 321                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 322                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL,
 323                 &uni_t_ut61b_ser_driver_info, receive_data_UNI_T_UT61B_SER,
 324         },
 325         {
 326                 "UNI-T", "UT61C (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 327                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 328                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL,
 329                 &uni_t_ut61c_ser_driver_info, receive_data_UNI_T_UT61C_SER,
 330         },
 331         {
 332                 "UNI-T", "UT61D (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 333                 2400, FS9922_PACKET_SIZE, 0, 0, NULL,
 334                 sr_fs9922_packet_valid, sr_fs9922_parse, NULL,
 335                 &uni_t_ut61d_ser_driver_info, receive_data_UNI_T_UT61D_SER,
 336         },
 337         {
 338                 /* Note: ES51922 baudrate is actually 19230! */
 339                 "UNI-T", "UT61E (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 340                 19200, ES519XX_14B_PACKET_SIZE, 0, 0, NULL,
 341                 sr_es519xx_19200_14b_packet_valid, sr_es519xx_19200_14b_parse,
 342                 NULL,
 343                 &uni_t_ut61e_ser_driver_info, receive_data_UNI_T_UT61E_SER,
 344         },
 345         {
 346                 "UNI-T", "UT71A (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 347                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 348                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 349                 &uni_t_ut71a_ser_driver_info, receive_data_UNI_T_UT71A_SER,
 350         },
 351         {
 352                 "UNI-T", "UT71B (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 353                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 354                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 355                 &uni_t_ut71b_ser_driver_info, receive_data_UNI_T_UT71B_SER,
 356         },
 357         {
 358                 "UNI-T", "UT71C (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 359                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 360                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 361                 &uni_t_ut71c_ser_driver_info, receive_data_UNI_T_UT71C_SER,
 362         },
 363         {
 364                 "UNI-T", "UT71D (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 365                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 366                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 367                 &uni_t_ut71d_ser_driver_info, receive_data_UNI_T_UT71D_SER,
 368         },
 369         {
 370                 "UNI-T", "UT71E (UT-D02 cable)", "2400/7o1/rts=0/dtr=1",
 371                 2400, UT71X_PACKET_SIZE, 0, 0, NULL,
 372                 sr_ut71x_packet_valid, sr_ut71x_parse, NULL,
 373                 &uni_t_ut71e_ser_driver_info, receive_data_UNI_T_UT71E_SER,
 374         },
 375         {
 376                 "ISO-TECH", "IDM103N", "2400/7o1/rts=0/dtr=1",
 377                 2400, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 378                 sr_es519xx_2400_11b_packet_valid, sr_es519xx_2400_11b_parse,
 379                 NULL,
 380                 &iso_tech_idm103n_driver_info, receive_data_ISO_TECH_IDM103N,
 381         },
 382         {
 383                 "Tenma", "72-7745 (UT-D02 cable)", "2400/8n1/rts=0/dtr=1",
 384                 2400, FS9721_PACKET_SIZE, 0, 0, NULL,
 385                 sr_fs9721_packet_valid, sr_fs9721_parse,
 386                 sr_fs9721_00_temp_c,
 387                 &tenma_72_7745_ser_driver_info, receive_data_TENMA_72_7745_SER,
 388         },
 389         {
 390                 /* Note: ES51986 baudrate is actually 19230! */
 391                 "Tenma", "72-7750 (UT-D02 cable)", "19200/7o1/rts=0/dtr=1",
 392                 19200, ES519XX_11B_PACKET_SIZE, 0, 0, NULL,
 393                 sr_es519xx_19200_11b_packet_valid, sr_es519xx_19200_11b_parse,
 394                 NULL,
 395                 &tenma_72_7750_ser_driver_info, receive_data_TENMA_72_7750_SER,
 396         },
 397         {
 398                 "Brymen", "BM25x", "9600/8n1/rts=1/dtr=1",
 399                 9600, BRYMEN_BM25X_PACKET_SIZE, 0, 0, NULL,
 400                 sr_brymen_bm25x_packet_valid, sr_brymen_bm25x_parse,
 401                 NULL,
 402                 &brymen_bm25x_driver_info, receive_data_BRYMEN_BM25X,
 403         },
 404 };
 405
 406 static int dev_clear(int dmm)
 407 {
 408         return std_dev_clear(dmms[dmm].di, NULL);
 409 }
 410
 411 static int init(struct sr_context *sr_ctx, int dmm)
 412 {
 413         return std_init(sr_ctx, dmms[dmm].di, LOG_PREFIX);
 414 }
 415
 416 static GSList *sdmm_scan(const char *conn, const char *serialcomm, int dmm)
 417 {
 418         struct sr_dev_inst *sdi;
 419         struct drv_context *drvc;
 420         struct dev_context *devc;
 421         struct sr_serial_dev_inst *serial;
 422         GSList *devices;
 423         int dropped, ret;
 424         size_t len;
 425         uint8_t buf[128];
 426
 427         serial = sr_serial_dev_inst_new(conn, serialcomm);
 428
 429         if (serial_open(serial, SERIAL_RDWR) != SR_OK)
 430                 return NULL;
 431
 432         sr_info("Probing serial port %s.", conn);
 433
 434         drvc = dmms[dmm].di->priv;
 435         devices = NULL;
 436         serial_flush(serial);
 437
 438         /* Request a packet if the DMM requires this. */
 439         if (dmms[dmm].packet_request) {
 440                 if ((ret = dmms[dmm].packet_request(serial)) < 0) {
 441                         sr_err("Failed to request packet: %d.", ret);
 442                         return FALSE;
 443                 }
 444         }
 445
 446         /*
 447          * There's no way to get an ID from the multimeter. It just sends data
 448          * periodically (or upon request), so the best we can do is check if
 449          * the packets match the expected format.
 450          */
 451
 452         /* Let's get a bit of data and see if we can find a packet. */
 453         len = sizeof(buf);
 454         ret = serial_stream_detect(serial, buf, &len, dmms[dmm].packet_size,
 455                                    dmms[dmm].packet_valid, 3000,
 456                                    dmms[dmm].baudrate);
 457         if (ret != SR_OK)
 458                 goto scan_cleanup;
 459
 460         /*
 461          * If we dropped more than two packets worth of data, something is
 462          * wrong. We shouldn't quit however, since the dropped bytes might be
 463          * just zeroes at the beginning of the stream. Those can occur as a
 464          * combination of the nonstandard cable that ships with some devices
 465          * and the serial port or USB to serial adapter.
 466          */
 467         dropped = len - dmms[dmm].packet_size;
 468         if (dropped > 2 * dmms[dmm].packet_size)
 469                 sr_warn("Had to drop too much data.");
 470
 471         sr_info("Found device on port %s.", conn);
 472
 473         sdi = g_malloc0(sizeof(struct sr_dev_inst));
 474         sdi->status = SR_ST_INACTIVE;
 475         sdi->vendor = g_strdup(dmms[dmm].vendor);
 476         sdi->model = g_strdup(dmms[dmm].device);
 477         devc = g_malloc0(sizeof(struct dev_context));
 478         sdi->inst_type = SR_INST_SERIAL;
 479         sdi->conn = serial;
 480         sdi->priv = devc;
 481         sdi->driver = dmms[dmm].di;
 482         sr_channel_new(sdi, 0, SR_CHANNEL_ANALOG, TRUE, "P1");
 483         drvc->instances = g_slist_append(drvc->instances, sdi);
 484         devices = g_slist_append(devices, sdi);
 485
 486 scan_cleanup:
 487         serial_close(serial);
 488
 489         return devices;
 490 }
 491
 492 static GSList *scan(GSList *options, int dmm)
 493 {
 494         struct sr_config *src;
 495         GSList *l, *devices;
 496         const char *conn, *serialcomm;
 497
 498         conn = serialcomm = NULL;
 499         for (l = options; l; l = l->next) {
 500                 src = l->data;
 501                 switch (src->key) {
 502                 case SR_CONF_CONN:
 503                         conn = g_variant_get_string(src->data, NULL);
 504                         break;
 505                 case SR_CONF_SERIALCOMM:
 506                         serialcomm = g_variant_get_string(src->data, NULL);
 507                         break;
 508                 }
 509         }
 510         if (!conn)
 511                 return NULL;
 512
 513         if (serialcomm) {
 514                 /* Use the provided comm specs. */
 515                 devices = sdmm_scan(conn, serialcomm, dmm);
 516         } else {
 517                 /* Try the default. */
 518                 devices = sdmm_scan(conn, dmms[dmm].conn, dmm);
 519         }
 520
 521         return devices;
 522 }
 523
 524 static GSList *dev_list(int dmm)
 525 {
 526         return ((struct drv_context *)(dmms[dmm].di->priv))->instances;
 527 }
 528
 529 static int cleanup(int dmm)
 530 {
 531         return dev_clear(dmm);
 532 }
 533
 534 static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi,
 535                 const struct sr_channel_group *cg)
 536 {
 537         struct dev_context *devc;
 538
 539         (void)cg;
 540
 541         if (sdi->status != SR_ST_ACTIVE)
 542                 return SR_ERR_DEV_CLOSED;
 543
 544         if (!(devc = sdi->priv)) {
 545                 sr_err("sdi->priv was NULL.");
 546                 return SR_ERR_BUG;
 547         }
 548
 549         switch (key) {
 550         case SR_CONF_LIMIT_SAMPLES:
 551                 devc->limit_samples = g_variant_get_uint64(data);
 552                 sr_dbg("Setting sample limit to %" PRIu64 ".",
 553                        devc->limit_samples);
 554                 break;
 555         case SR_CONF_LIMIT_MSEC:
 556                 devc->limit_msec = g_variant_get_uint64(data);
 557                 sr_dbg("Setting time limit to %" PRIu64 "ms.",
 558                        devc->limit_msec);
 559                 break;
 560         default:
 561                 return SR_ERR_NA;
 562         }
 563
 564         return SR_OK;
 565 }
 566
 567 static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi,
 568                 const struct sr_channel_group *cg)
 569 {
 570         (void)sdi;
 571         (void)cg;
 572
 573         switch (key) {
 574         case SR_CONF_SCAN_OPTIONS:
 575                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 576                                 scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t));
 577                 break;
 578         case SR_CONF_DEVICE_OPTIONS:
 579                 *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32,
 580                                 devopts, ARRAY_SIZE(devopts), sizeof(uint32_t));
 581                 break;
 582         default:
 583                 return SR_ERR_NA;
 584         }
 585
 586         return SR_OK;
 587 }
 588
 589 static int dev_acquisition_start(const struct sr_dev_inst *sdi,
 590                                     void *cb_data, int dmm)
 591 {
 592         struct dev_context *devc;
 593         struct sr_serial_dev_inst *serial;
 594
 595         if (sdi->status != SR_ST_ACTIVE)
 596                 return SR_ERR_DEV_CLOSED;
 597
 598         if (!(devc = sdi->priv)) {
 599                 sr_err("sdi->priv was NULL.");
 600                 return SR_ERR_BUG;
 601         }
 602
 603         devc->cb_data = cb_data;
 604
 605         /*
 606          * Reset the number of samples to take. If we've already collected our
 607          * quota, but we start a new session, and don't reset this, we'll just
 608          * quit without acquiring any new samples.
 609          */
 610         devc->num_samples = 0;
 611         devc->starttime = g_get_monotonic_time();
 612
 613         /* Send header packet to the session bus. */
 614         std_session_send_df_header(cb_data, LOG_PREFIX);
 615
 616         /* Poll every 50ms, or whenever some data comes in. */
 617         serial = sdi->conn;
 618         serial_source_add(sdi->session, serial, G_IO_IN, 50,
 619                       dmms[dmm].receive_data, (void *)sdi);
 620
 621         return SR_OK;
 622 }
 623
 624 static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
 625 {
 626         return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
 627                         sdi->conn, LOG_PREFIX);
 628 }
 629
 630 /* Driver-specific API function wrappers */
 631 #define HW_INIT(X) \
 632 static int init_##X(struct sr_context *sr_ctx) { return init(sr_ctx, X); }
 633 #define HW_CLEANUP(X) \
 634 static int cleanup_##X(void) { return cleanup(X); }
 635 #define HW_SCAN(X) \
 636 static GSList *scan_##X(GSList *options) { return scan(options, X); }
 637 #define HW_DEV_LIST(X) \
 638 static GSList *dev_list_##X(void) { return dev_list(X); }
 639 #define HW_DEV_CLEAR(X) \
 640 static int dev_clear_##X(void) { return dev_clear(X); }
 641 #define HW_DEV_ACQUISITION_START(X) \
 642 static int dev_acquisition_start_##X(const struct sr_dev_inst *sdi, \
 643 void *cb_data) { return dev_acquisition_start(sdi, cb_data, X); }
 644
 645 /* Driver structs and API function wrappers */
 646 #define DRV(ID, ID_UPPER, NAME, LONGNAME) \
 647 HW_INIT(ID_UPPER) \
 648 HW_CLEANUP(ID_UPPER) \
 649 HW_SCAN(ID_UPPER) \
 650 HW_DEV_LIST(ID_UPPER) \
 651 HW_DEV_CLEAR(ID_UPPER) \
 652 HW_DEV_ACQUISITION_START(ID_UPPER) \
 653 SR_PRIV struct sr_dev_driver ID##_driver_info = { \
 654         .name = NAME, \
 655         .longname = LONGNAME, \
 656         .api_version = 1, \
 657         .init = init_##ID_UPPER, \
 658         .cleanup = cleanup_##ID_UPPER, \
 659         .scan = scan_##ID_UPPER, \
 660         .dev_list = dev_list_##ID_UPPER, \
 661         .dev_clear = dev_clear_##ID_UPPER, \
 662         .config_get = NULL, \
 663         .config_set = config_set, \
 664         .config_list = config_list, \
 665         .dev_open = std_serial_dev_open, \
 666         .dev_close = std_serial_dev_close, \
 667         .dev_acquisition_start = dev_acquisition_start_##ID_UPPER, \
 668         .dev_acquisition_stop = dev_acquisition_stop, \
 669         .priv = NULL, \
 670 };
 671
 672 DRV(bbcgm_m2110, BBCGM_M2110, "bbcgm-m2110", "BBC Goertz Metrawatt M2110")
 673 DRV(digitek_dt4000zc, DIGITEK_DT4000ZC, "digitek-dt4000zc", "Digitek DT4000ZC")
 674 DRV(tekpower_tp4000zc, TEKPOWER_TP4000ZC, "tekpower-tp4000zc", "TekPower TP4000ZC")
 675 DRV(metex_me31, METEX_ME31, "metex-me31", "Metex ME-31")
 676 DRV(peaktech_3410, PEAKTECH_3410, "peaktech-3410", "PeakTech 3410")
 677 DRV(mastech_mas345, MASTECH_MAS345, "mastech-mas345", "MASTECH MAS345")
 678 DRV(mastech_ms8250b, MASTECH_MS8250B, "mastech-ms8250b", "MASTECH MS8250B")
 679 DRV(va_va18b, VA_VA18B, "va-va18b", "V&A VA18B")
 680 DRV(va_va40b, VA_VA40B, "va-va40b", "V&A VA40B")
 681 DRV(metex_m3640d, METEX_M3640D, "metex-m3640d", "Metex M-3640D")
 682 DRV(metex_m4650cr, METEX_M4650CR, "metex-m4650cr", "Metex M-4650CR")
 683 DRV(peaktech_4370, PEAKTECH_4370, "peaktech-4370", "PeakTech 4370")
 684 DRV(pce_pce_dm32, PCE_PCE_DM32, "pce-pce-dm32", "PCE PCE-DM32")
 685 DRV(radioshack_22_168, RADIOSHACK_22_168, "radioshack-22-168", "RadioShack 22-168")
 686 DRV(radioshack_22_805, RADIOSHACK_22_805, "radioshack-22-805", "RadioShack 22-805")
 687 DRV(radioshack_22_812, RADIOSHACK_22_812, "radioshack-22-812", "RadioShack 22-812")
 688 DRV(tecpel_dmm_8061_ser, TECPEL_DMM_8061_SER, "tecpel-dmm-8061-ser", "Tecpel DMM-8061 (UT-D02 cable)")
 689 DRV(voltcraft_m3650cr, VOLTCRAFT_M3650CR, "voltcraft-m3650cr", "Voltcraft M-3650CR")
 690 DRV(voltcraft_m3650d, VOLTCRAFT_M3650D, "voltcraft-m3650d", "Voltcraft M-3650D")
 691 DRV(voltcraft_m4650cr, VOLTCRAFT_M4650CR, "voltcraft-m4650cr", "Voltcraft M-4650CR")
 692 DRV(voltcraft_me42, VOLTCRAFT_ME42, "voltcraft-me42", "Voltcraft ME-42")
 693 DRV(voltcraft_vc820_ser, VOLTCRAFT_VC820_SER, "voltcraft-vc820-ser", "Voltcraft VC-820 (UT-D02 cable)")
 694 DRV(voltcraft_vc830_ser, VOLTCRAFT_VC830_SER, "voltcraft-vc830-ser", "Voltcraft VC-830 (UT-D02 cable)")
 695 DRV(voltcraft_vc840_ser, VOLTCRAFT_VC840_SER, "voltcraft-vc840-ser", "Voltcraft VC-840 (UT-D02 cable)")
 696 DRV(voltcraft_vc870_ser, VOLTCRAFT_VC870_SER, "voltcraft-vc870-ser", "Voltcraft VC-870 (UT-D02 cable)")
 697 DRV(voltcraft_vc920_ser, VOLTCRAFT_VC920_SER, "voltcraft-vc920-ser", "Voltcraft VC-920 (UT-D02 cable)")
 698 DRV(voltcraft_vc940_ser, VOLTCRAFT_VC940_SER, "voltcraft-vc940-ser", "Voltcraft VC-940 (UT-D02 cable)")
 699 DRV(voltcraft_vc960_ser, VOLTCRAFT_VC960_SER, "voltcraft-vc960-ser", "Voltcraft VC-960 (UT-D02 cable)")
 700 DRV(uni_t_ut60a_ser, UNI_T_UT60A_SER, "uni-t-ut60a-ser", "UNI-T UT60A (UT-D02 cable)")
 701 DRV(uni_t_ut60e_ser, UNI_T_UT60E_SER, "uni-t-ut60e-ser", "UNI-T UT60E (UT-D02 cable)")
 702 DRV(uni_t_ut60g_ser, UNI_T_UT60G_SER, "uni-t-ut60g-ser", "UNI-T UT60G (UT-D02 cable)")
 703 DRV(uni_t_ut61b_ser, UNI_T_UT61B_SER, "uni-t-ut61b-ser", "UNI-T UT61B (UT-D02 cable)")
 704 DRV(uni_t_ut61c_ser, UNI_T_UT61C_SER, "uni-t-ut61c-ser", "UNI-T UT61C (UT-D02 cable)")
 705 DRV(uni_t_ut61d_ser, UNI_T_UT61D_SER, "uni-t-ut61d-ser", "UNI-T UT61D (UT-D02 cable)")
 706 DRV(uni_t_ut61e_ser, UNI_T_UT61E_SER, "uni-t-ut61e-ser", "UNI-T UT61E (UT-D02 cable)")
 707 DRV(uni_t_ut71a_ser, UNI_T_UT71A_SER, "uni-t-ut71a-ser", "UNI-T UT71A (UT-D02 cable)")
 708 DRV(uni_t_ut71b_ser, UNI_T_UT71B_SER, "uni-t-ut71b-ser", "UNI-T UT71B (UT-D02 cable)")
 709 DRV(uni_t_ut71c_ser, UNI_T_UT71C_SER, "uni-t-ut71c-ser", "UNI-T UT71C (UT-D02 cable)")
 710 DRV(uni_t_ut71d_ser, UNI_T_UT71D_SER, "uni-t-ut71d-ser", "UNI-T UT71D (UT-D02 cable)")
 711 DRV(uni_t_ut71e_ser, UNI_T_UT71E_SER, "uni-t-ut71e-ser", "UNI-T UT71E (UT-D02 cable)")
 712 DRV(iso_tech_idm103n, ISO_TECH_IDM103N, "iso-tech-idm103n", "ISO-TECH IDM103N")
 713 DRV(tenma_72_7745_ser, TENMA_72_7745_SER, "tenma-72-7745-ser", "Tenma 72-7745 (UT-D02 cable)")
 714 DRV(tenma_72_7750_ser, TENMA_72_7750_SER, "tenma-72-7750-ser", "Tenma 72-7750 (UT-D02 cable)")
 715 DRV(brymen_bm25x, BRYMEN_BM25X, "brymen-bm25x", "Brymen BM25x")