hwdriver.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2013 Bert Vermeulen <bert@biot.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 <stdlib.h>
  21 #include <stdio.h>
  22 #include <sys/types.h>
  23 #include <dirent.h>
  24 #include <string.h>
  25 #include <glib.h>
  26 #include "config.h" /* Needed for HAVE_LIBUSB_1_0 and others. */
  27 #include "libsigrok.h"
  28 #include "libsigrok-internal.h"
  29
  30 /** @cond PRIVATE */
  31 #ifdef HAVE_HW_TESTO
  32 extern SR_PRIV struct sr_dev_driver testo_driver_info;
  33 #endif
  34 #define LOG_PREFIX "hwdriver"
  35 /** @endcond */
  36
  37 /**
  38  * @file
  39  *
  40  * Hardware driver handling in libsigrok.
  41  */
  42
  43 /**
  44  * @defgroup grp_driver Hardware drivers
  45  *
  46  * Hardware driver handling in libsigrok.
  47  *
  48  * @{
  49  */
  50
  51 static struct sr_config_info sr_config_info_data[] = {
  52         {SR_CONF_CONN, SR_T_STRING, "conn",
  53                 "Connection", NULL},
  54         {SR_CONF_SERIALCOMM, SR_T_STRING, "serialcomm",
  55                 "Serial communication", NULL},
  56         {SR_CONF_SAMPLERATE, SR_T_UINT64, "samplerate",
  57                 "Sample rate", NULL},
  58         {SR_CONF_CAPTURE_RATIO, SR_T_UINT64, "captureratio",
  59                 "Pre-trigger capture ratio", NULL},
  60         {SR_CONF_PATTERN_MODE, SR_T_STRING, "pattern",
  61                 "Pattern", NULL},
  62         {SR_CONF_TRIGGER_MATCH, SR_T_INT32, "triggermatch",
  63                 "Trigger matches", NULL},
  64         {SR_CONF_EXTERNAL_CLOCK, SR_T_BOOL, "external_clock",
  65                 "External clock mode", NULL},
  66         {SR_CONF_SWAP, SR_T_BOOL, "swap",
  67                 "Swap channel order", NULL},
  68         {SR_CONF_RLE, SR_T_BOOL, "rle",
  69                 "Run Length Encoding", NULL},
  70         {SR_CONF_TRIGGER_SLOPE, SR_T_STRING, "triggerslope",
  71                 "Trigger slope", NULL},
  72         {SR_CONF_TRIGGER_SOURCE, SR_T_STRING, "triggersource",
  73                 "Trigger source", NULL},
  74         {SR_CONF_HORIZ_TRIGGERPOS, SR_T_FLOAT, "horiz_triggerpos",
  75                 "Horizontal trigger position", NULL},
  76         {SR_CONF_BUFFERSIZE, SR_T_UINT64, "buffersize",
  77                 "Buffer size", NULL},
  78         {SR_CONF_TIMEBASE, SR_T_RATIONAL_PERIOD, "timebase",
  79                 "Time base", NULL},
  80         {SR_CONF_FILTER, SR_T_STRING, "filter",
  81                 "Filter targets", NULL},
  82         {SR_CONF_VDIV, SR_T_RATIONAL_VOLT, "vdiv",
  83                 "Volts/div", NULL},
  84         {SR_CONF_COUPLING, SR_T_STRING, "coupling",
  85                 "Coupling", NULL},
  86         {SR_CONF_DATALOG, SR_T_BOOL, "datalog",
  87                 "Datalog", NULL},
  88         {SR_CONF_SPL_WEIGHT_FREQ, SR_T_STRING, "spl_weight_freq",
  89                 "Sound pressure level frequency weighting", NULL},
  90         {SR_CONF_SPL_WEIGHT_TIME, SR_T_STRING, "spl_weight_time",
  91                 "Sound pressure level time weighting", NULL},
  92         {SR_CONF_HOLD_MAX, SR_T_BOOL, "hold_max",
  93                 "Hold max", NULL},
  94         {SR_CONF_HOLD_MIN, SR_T_BOOL, "hold_min",
  95                 "Hold min", NULL},
  96         {SR_CONF_SPL_MEASUREMENT_RANGE, SR_T_UINT64_RANGE, "spl_meas_range",
  97                 "Sound pressure level measurement range", NULL},
  98         {SR_CONF_VOLTAGE_THRESHOLD, SR_T_DOUBLE_RANGE, "voltage_threshold",
  99                 "Voltage threshold", NULL },
 100         {SR_CONF_POWER_OFF, SR_T_BOOL, "power_off",
 101                 "Power off", NULL},
 102         {SR_CONF_DATA_SOURCE, SR_T_STRING, "data_source",
 103                 "Data source", NULL},
 104         {SR_CONF_NUM_LOGIC_CHANNELS, SR_T_INT32, "logic_channels",
 105                 "Number of logic channels", NULL},
 106         {SR_CONF_NUM_ANALOG_CHANNELS, SR_T_INT32, "analog_channels",
 107                 "Number of analog channels", NULL},
 108         {SR_CONF_OUTPUT_VOLTAGE, SR_T_FLOAT, "output_voltage",
 109                 "Current output voltage", NULL},
 110         {SR_CONF_OUTPUT_VOLTAGE_MAX, SR_T_FLOAT, "output_voltage_max",
 111                 "Maximum output voltage", NULL},
 112         {SR_CONF_OUTPUT_CURRENT, SR_T_FLOAT, "output_current",
 113                 "Current output current", NULL},
 114         {SR_CONF_OUTPUT_CURRENT_MAX, SR_T_FLOAT, "output_current_max",
 115                 "Maximum output current", NULL},
 116         {SR_CONF_OUTPUT_ENABLED, SR_T_BOOL, "output_enabled",
 117                 "Output enabled", NULL},
 118         {SR_CONF_OUTPUT_CHANNEL, SR_T_STRING, "output_channel",
 119                 "Output channel modes", NULL},
 120         {SR_CONF_OVER_VOLTAGE_PROTECTION, SR_T_BOOL, "ovp",
 121                 "Over-voltage protection", NULL},
 122         {SR_CONF_OVER_CURRENT_PROTECTION, SR_T_BOOL, "ocp",
 123                 "Over-current protection", NULL},
 124         {SR_CONF_LIMIT_SAMPLES, SR_T_UINT64, "limit_samples",
 125                 "Sample limit", NULL},
 126         {SR_CONF_CLOCK_EDGE, SR_T_STRING, "clock_edge",
 127                 "Clock edge", NULL},
 128         {0, 0, NULL, NULL, NULL},
 129 };
 130
 131 /** @cond PRIVATE */
 132 #ifdef HAVE_HW_APPA_55II
 133 extern SR_PRIV struct sr_dev_driver appa_55ii_driver_info;
 134 #endif
 135 #ifdef HAVE_HW_ATTEN_PPS3XXX
 136 extern SR_PRIV struct sr_dev_driver atten_pps3203_driver_info;
 137 #endif
 138 #ifdef HAVE_HW_BRYMEN_BM86X
 139 extern SR_PRIV struct sr_dev_driver brymen_bm86x_driver_info;
 140 #endif
 141 #ifdef HAVE_HW_BRYMEN_DMM
 142 extern SR_PRIV struct sr_dev_driver brymen_bm857_driver_info;
 143 #endif
 144 #ifdef HAVE_HW_CEM_DT_885X
 145 extern SR_PRIV struct sr_dev_driver cem_dt_885x_driver_info;
 146 #endif
 147 #ifdef HAVE_HW_CENTER_3XX
 148 extern SR_PRIV struct sr_dev_driver center_309_driver_info;
 149 extern SR_PRIV struct sr_dev_driver voltcraft_k204_driver_info;
 150 #endif
 151 #ifdef HAVE_HW_COLEAD_SLM
 152 extern SR_PRIV struct sr_dev_driver colead_slm_driver_info;
 153 #endif
 154 #ifdef HAVE_HW_CONRAD_DIGI_35_CPU
 155 extern SR_PRIV struct sr_dev_driver conrad_digi_35_cpu_driver_info;
 156 #endif
 157 #ifdef HAVE_HW_DEMO
 158 extern SR_PRIV struct sr_dev_driver demo_driver_info;
 159 #endif
 160 #ifdef HAVE_HW_GMC_MH_1X_2X
 161 extern SR_PRIV struct sr_dev_driver gmc_mh_1x_2x_rs232_driver_info;
 162 extern SR_PRIV struct sr_dev_driver gmc_mh_2x_bd232_driver_info;
 163 #endif
 164 #ifdef HAVE_HW_HAMEG_HMO
 165 extern SR_PRIV struct sr_dev_driver hameg_hmo_driver_info;
 166 #endif
 167 #ifdef HAVE_HW_IKALOGIC_SCANALOGIC2
 168 extern SR_PRIV struct sr_dev_driver ikalogic_scanalogic2_driver_info;
 169 #endif
 170 #ifdef HAVE_HW_IKALOGIC_SCANAPLUS
 171 extern SR_PRIV struct sr_dev_driver ikalogic_scanaplus_driver_info;
 172 #endif
 173 #ifdef HAVE_HW_KECHENG_KC_330B
 174 extern SR_PRIV struct sr_dev_driver kecheng_kc_330b_driver_info;
 175 #endif
 176 #ifdef HAVE_HW_LASCAR_EL_USB
 177 extern SR_PRIV struct sr_dev_driver lascar_el_usb_driver_info;
 178 #endif
 179 #ifdef HAVE_HW_MANSON_HCS_3XXX
 180 extern SR_PRIV struct sr_dev_driver manson_hcs_3xxx_driver_info;
 181 #endif
 182 #ifdef HAVE_HW_MIC_985XX
 183 extern SR_PRIV struct sr_dev_driver mic_98581_driver_info;
 184 extern SR_PRIV struct sr_dev_driver mic_98583_driver_info;
 185 #endif
 186 #ifdef HAVE_HW_MOTECH_LPS_30X
 187 extern SR_PRIV struct sr_dev_driver motech_lps_301_driver_info;
 188 #endif
 189 #ifdef HAVE_HW_NORMA_DMM
 190 extern SR_PRIV struct sr_dev_driver norma_dmm_driver_info;
 191 extern SR_PRIV struct sr_dev_driver siemens_b102x_driver_info;
 192 #endif
 193 #ifdef HAVE_HW_OLS
 194 extern SR_PRIV struct sr_dev_driver ols_driver_info;
 195 #endif
 196 #ifdef HAVE_HW_RIGOL_DS
 197 extern SR_PRIV struct sr_dev_driver rigol_ds_driver_info;
 198 #endif
 199 #ifdef HAVE_HW_SALEAE_LOGIC16
 200 extern SR_PRIV struct sr_dev_driver saleae_logic16_driver_info;
 201 #endif
 202 #ifdef HAVE_HW_SYSCLK_LWLA
 203 extern SR_PRIV struct sr_dev_driver sysclk_lwla_driver_info;
 204 #endif
 205 #ifdef HAVE_HW_TELEINFO
 206 extern SR_PRIV struct sr_dev_driver teleinfo_driver_info;
 207 #endif
 208 #ifdef HAVE_HW_TESTO
 209 extern SR_PRIV struct sr_dev_driver testo_driver_info;
 210 #endif
 211 #ifdef HAVE_HW_TONDAJ_SL_814
 212 extern SR_PRIV struct sr_dev_driver tondaj_sl_814_driver_info;
 213 #endif
 214 #ifdef HAVE_HW_UNI_T_UT32X
 215 extern SR_PRIV struct sr_dev_driver uni_t_ut32x_driver_info;
 216 #endif
 217 #ifdef HAVE_HW_VICTOR_DMM
 218 extern SR_PRIV struct sr_dev_driver victor_dmm_driver_info;
 219 #endif
 220 #ifdef HAVE_HW_ZEROPLUS_LOGIC_CUBE
 221 extern SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info;
 222 #endif
 223 #ifdef HAVE_HW_ASIX_SIGMA
 224 extern SR_PRIV struct sr_dev_driver asix_sigma_driver_info;
 225 #endif
 226 #ifdef HAVE_HW_CHRONOVU_LA
 227 extern SR_PRIV struct sr_dev_driver chronovu_la_driver_info;
 228 #endif
 229 #ifdef HAVE_HW_LINK_MSO19
 230 extern SR_PRIV struct sr_dev_driver link_mso19_driver_info;
 231 #endif
 232 #ifdef HAVE_HW_FX2LAFW
 233 extern SR_PRIV struct sr_dev_driver fx2lafw_driver_info;
 234 #endif
 235 #ifdef HAVE_HW_HANTEK_DSO
 236 extern SR_PRIV struct sr_dev_driver hantek_dso_driver_info;
 237 #endif
 238 #ifdef HAVE_HW_AGILENT_DMM
 239 extern SR_PRIV struct sr_dev_driver agdmm_driver_info;
 240 #endif
 241 #ifdef HAVE_HW_FLUKE_DMM
 242 extern SR_PRIV struct sr_dev_driver flukedmm_driver_info;
 243 #endif
 244 #ifdef HAVE_HW_SERIAL_DMM
 245 extern SR_PRIV struct sr_dev_driver bbcgm_m2110_driver_info;
 246 extern SR_PRIV struct sr_dev_driver digitek_dt4000zc_driver_info;
 247 extern SR_PRIV struct sr_dev_driver tekpower_tp4000zc_driver_info;
 248 extern SR_PRIV struct sr_dev_driver metex_me31_driver_info;
 249 extern SR_PRIV struct sr_dev_driver peaktech_3410_driver_info;
 250 extern SR_PRIV struct sr_dev_driver mastech_mas345_driver_info;
 251 extern SR_PRIV struct sr_dev_driver va_va18b_driver_info;
 252 extern SR_PRIV struct sr_dev_driver va_va40b_driver_info;
 253 extern SR_PRIV struct sr_dev_driver metex_m3640d_driver_info;
 254 extern SR_PRIV struct sr_dev_driver metex_m4650cr_driver_info;
 255 extern SR_PRIV struct sr_dev_driver peaktech_4370_driver_info;
 256 extern SR_PRIV struct sr_dev_driver pce_pce_dm32_driver_info;
 257 extern SR_PRIV struct sr_dev_driver radioshack_22_168_driver_info;
 258 extern SR_PRIV struct sr_dev_driver radioshack_22_805_driver_info;
 259 extern SR_PRIV struct sr_dev_driver radioshack_22_812_driver_info;
 260 extern SR_PRIV struct sr_dev_driver tecpel_dmm_8061_ser_driver_info;
 261 extern SR_PRIV struct sr_dev_driver voltcraft_m3650cr_driver_info;
 262 extern SR_PRIV struct sr_dev_driver voltcraft_m3650d_driver_info;
 263 extern SR_PRIV struct sr_dev_driver voltcraft_m4650cr_driver_info;
 264 extern SR_PRIV struct sr_dev_driver voltcraft_me42_driver_info;
 265 extern SR_PRIV struct sr_dev_driver voltcraft_vc820_ser_driver_info;
 266 extern SR_PRIV struct sr_dev_driver voltcraft_vc830_ser_driver_info;
 267 extern SR_PRIV struct sr_dev_driver voltcraft_vc840_ser_driver_info;
 268 extern SR_PRIV struct sr_dev_driver uni_t_ut60a_ser_driver_info;
 269 extern SR_PRIV struct sr_dev_driver uni_t_ut60e_ser_driver_info;
 270 extern SR_PRIV struct sr_dev_driver uni_t_ut60g_ser_driver_info;
 271 extern SR_PRIV struct sr_dev_driver uni_t_ut61b_ser_driver_info;
 272 extern SR_PRIV struct sr_dev_driver uni_t_ut61c_ser_driver_info;
 273 extern SR_PRIV struct sr_dev_driver uni_t_ut61d_ser_driver_info;
 274 extern SR_PRIV struct sr_dev_driver uni_t_ut61e_ser_driver_info;
 275 extern SR_PRIV struct sr_dev_driver iso_tech_idm103n_driver_info;
 276 extern SR_PRIV struct sr_dev_driver tenma_72_7745_ser_driver_info;
 277 extern SR_PRIV struct sr_dev_driver tenma_72_7750_ser_driver_info;
 278 #endif
 279 #ifdef HAVE_HW_UNI_T_DMM
 280 extern SR_PRIV struct sr_dev_driver tecpel_dmm_8061_driver_info;
 281 extern SR_PRIV struct sr_dev_driver uni_t_ut60a_driver_info;
 282 extern SR_PRIV struct sr_dev_driver uni_t_ut60e_driver_info;
 283 extern SR_PRIV struct sr_dev_driver uni_t_ut60g_driver_info;
 284 extern SR_PRIV struct sr_dev_driver uni_t_ut61b_driver_info;
 285 extern SR_PRIV struct sr_dev_driver uni_t_ut61c_driver_info;
 286 extern SR_PRIV struct sr_dev_driver uni_t_ut61d_driver_info;
 287 extern SR_PRIV struct sr_dev_driver uni_t_ut61e_driver_info;
 288 extern SR_PRIV struct sr_dev_driver voltcraft_vc820_driver_info;
 289 extern SR_PRIV struct sr_dev_driver voltcraft_vc830_driver_info;
 290 extern SR_PRIV struct sr_dev_driver voltcraft_vc840_driver_info;
 291 extern SR_PRIV struct sr_dev_driver tenma_72_7745_driver_info;
 292 extern SR_PRIV struct sr_dev_driver tenma_72_7750_driver_info;
 293 #endif
 294 /** @endcond */
 295
 296 static struct sr_dev_driver *drivers_list[] = {
 297 #ifdef HAVE_HW_APPA_55II
 298         &appa_55ii_driver_info,
 299 #endif
 300 #ifdef HAVE_HW_ATTEN_PPS3XXX
 301         &atten_pps3203_driver_info,
 302 #endif
 303 #ifdef HAVE_HW_BRYMEN_BM86X
 304         &brymen_bm86x_driver_info,
 305 #endif
 306 #ifdef HAVE_HW_BRYMEN_DMM
 307         &brymen_bm857_driver_info,
 308 #endif
 309 #ifdef HAVE_HW_CEM_DT_885X
 310         &cem_dt_885x_driver_info,
 311 #endif
 312 #ifdef HAVE_HW_CENTER_3XX
 313         &center_309_driver_info,
 314         &voltcraft_k204_driver_info,
 315 #endif
 316 #ifdef HAVE_HW_COLEAD_SLM
 317         &colead_slm_driver_info,
 318 #endif
 319 #ifdef HAVE_HW_CONRAD_DIGI_35_CPU
 320         &conrad_digi_35_cpu_driver_info,
 321 #endif
 322 #ifdef HAVE_HW_DEMO
 323         &demo_driver_info,
 324 #endif
 325 #ifdef HAVE_HW_GMC_MH_1X_2X
 326         &gmc_mh_1x_2x_rs232_driver_info,
 327         &gmc_mh_2x_bd232_driver_info,
 328 #endif
 329 #ifdef HAVE_HW_HAMEG_HMO
 330         &hameg_hmo_driver_info,
 331 #endif
 332 #ifdef HAVE_HW_IKALOGIC_SCANALOGIC2
 333         &ikalogic_scanalogic2_driver_info,
 334 #endif
 335 #ifdef HAVE_HW_IKALOGIC_SCANAPLUS
 336         &ikalogic_scanaplus_driver_info,
 337 #endif
 338 #ifdef HAVE_HW_KECHENG_KC_330B
 339         &kecheng_kc_330b_driver_info,
 340 #endif
 341 #ifdef HAVE_HW_LASCAR_EL_USB
 342         &lascar_el_usb_driver_info,
 343 #endif
 344 #ifdef HAVE_HW_MANSON_HCS_3XXX
 345         &manson_hcs_3xxx_driver_info,
 346 #endif
 347 #ifdef HAVE_HW_MIC_985XX
 348         &mic_98581_driver_info,
 349         &mic_98583_driver_info,
 350 #endif
 351 #ifdef HAVE_HW_MOTECH_LPS_30X
 352         &motech_lps_301_driver_info,
 353 #endif
 354 #ifdef HAVE_HW_NORMA_DMM
 355         &norma_dmm_driver_info,
 356         &siemens_b102x_driver_info,
 357 #endif
 358 #ifdef HAVE_HW_OLS
 359         &ols_driver_info,
 360 #endif
 361 #ifdef HAVE_HW_RIGOL_DS
 362         &rigol_ds_driver_info,
 363 #endif
 364 #ifdef HAVE_HW_SALEAE_LOGIC16
 365         &saleae_logic16_driver_info,
 366 #endif
 367 #ifdef HAVE_HW_SYSCLK_LWLA
 368         &sysclk_lwla_driver_info,
 369 #endif
 370 #ifdef HAVE_HW_TELEINFO
 371         &teleinfo_driver_info,
 372 #endif
 373 #ifdef HAVE_HW_TESTO
 374         &testo_driver_info,
 375 #endif
 376 #ifdef HAVE_HW_TONDAJ_SL_814
 377         &tondaj_sl_814_driver_info,
 378 #endif
 379 #ifdef HAVE_HW_UNI_T_UT32X
 380         &uni_t_ut32x_driver_info,
 381 #endif
 382 #ifdef HAVE_HW_VICTOR_DMM
 383         &victor_dmm_driver_info,
 384 #endif
 385 #ifdef HAVE_HW_ZEROPLUS_LOGIC_CUBE
 386         &zeroplus_logic_cube_driver_info,
 387 #endif
 388 #ifdef HAVE_HW_ASIX_SIGMA
 389         &asix_sigma_driver_info,
 390 #endif
 391 #ifdef HAVE_HW_CHRONOVU_LA
 392         &chronovu_la_driver_info,
 393 #endif
 394 #ifdef HAVE_HW_LINK_MSO19
 395         &link_mso19_driver_info,
 396 #endif
 397 #ifdef HAVE_HW_FX2LAFW
 398         &fx2lafw_driver_info,
 399 #endif
 400 #ifdef HAVE_HW_HANTEK_DSO
 401         &hantek_dso_driver_info,
 402 #endif
 403 #ifdef HAVE_HW_AGILENT_DMM
 404         &agdmm_driver_info,
 405 #endif
 406 #ifdef HAVE_HW_FLUKE_DMM
 407         &flukedmm_driver_info,
 408 #endif
 409 #ifdef HAVE_HW_SERIAL_DMM
 410         &bbcgm_m2110_driver_info,
 411         &digitek_dt4000zc_driver_info,
 412         &tekpower_tp4000zc_driver_info,
 413         &metex_me31_driver_info,
 414         &peaktech_3410_driver_info,
 415         &mastech_mas345_driver_info,
 416         &va_va18b_driver_info,
 417         &va_va40b_driver_info,
 418         &metex_m3640d_driver_info,
 419         &metex_m4650cr_driver_info,
 420         &peaktech_4370_driver_info,
 421         &pce_pce_dm32_driver_info,
 422         &radioshack_22_168_driver_info,
 423         &radioshack_22_805_driver_info,
 424         &radioshack_22_812_driver_info,
 425         &tecpel_dmm_8061_ser_driver_info,
 426         &voltcraft_m3650cr_driver_info,
 427         &voltcraft_m3650d_driver_info,
 428         &voltcraft_m4650cr_driver_info,
 429         &voltcraft_me42_driver_info,
 430         &voltcraft_vc820_ser_driver_info,
 431         &voltcraft_vc830_ser_driver_info,
 432         &voltcraft_vc840_ser_driver_info,
 433         &uni_t_ut60a_ser_driver_info,
 434         &uni_t_ut60e_ser_driver_info,
 435         &uni_t_ut60g_ser_driver_info,
 436         &uni_t_ut61b_ser_driver_info,
 437         &uni_t_ut61c_ser_driver_info,
 438         &uni_t_ut61d_ser_driver_info,
 439         &uni_t_ut61e_ser_driver_info,
 440         &iso_tech_idm103n_driver_info,
 441         &tenma_72_7745_ser_driver_info,
 442         &tenma_72_7750_ser_driver_info,
 443 #endif
 444 #ifdef HAVE_HW_UNI_T_DMM
 445         &tecpel_dmm_8061_driver_info,
 446         &uni_t_ut60a_driver_info,
 447         &uni_t_ut60e_driver_info,
 448         &uni_t_ut60g_driver_info,
 449         &uni_t_ut61b_driver_info,
 450         &uni_t_ut61c_driver_info,
 451         &uni_t_ut61d_driver_info,
 452         &uni_t_ut61e_driver_info,
 453         &voltcraft_vc820_driver_info,
 454         &voltcraft_vc830_driver_info,
 455         &voltcraft_vc840_driver_info,
 456         &tenma_72_7745_driver_info,
 457         &tenma_72_7750_driver_info,
 458 #endif
 459         NULL,
 460 };
 461
 462 /**
 463  * Return the list of supported hardware drivers.
 464  *
 465  * @return Pointer to the NULL-terminated list of hardware driver pointers.
 466  *
 467  * @since 0.1.0
 468  */
 469 SR_API struct sr_dev_driver **sr_driver_list(void)
 470 {
 471
 472         return drivers_list;
 473 }
 474
 475 /**
 476  * Initialize a hardware driver.
 477  *
 478  * This usually involves memory allocations and variable initializations
 479  * within the driver, but _not_ scanning for attached devices.
 480  * The API call sr_driver_scan() is used for that.
 481  *
 482  * @param ctx A libsigrok context object allocated by a previous call to
 483  *            sr_init(). Must not be NULL.
 484  * @param driver The driver to initialize. This must be a pointer to one of
 485  *               the entries returned by sr_driver_list(). Must not be NULL.
 486  *
 487  * @retval SR_OK Success
 488  * @retval SR_ERR_ARG Invalid parameter(s).
 489  * @retval SR_ERR_BUG Internal errors.
 490  * @retval other Another negative error code upon other errors.
 491  *
 492  * @since 0.2.0
 493  */
 494 SR_API int sr_driver_init(struct sr_context *ctx, struct sr_dev_driver *driver)
 495 {
 496         int ret;
 497
 498         if (!ctx) {
 499                 sr_err("Invalid libsigrok context, can't initialize.");
 500                 return SR_ERR_ARG;
 501         }
 502
 503         if (!driver) {
 504                 sr_err("Invalid driver, can't initialize.");
 505                 return SR_ERR_ARG;
 506         }
 507
 508         sr_spew("Initializing driver '%s'.", driver->name);
 509         if ((ret = driver->init(ctx)) < 0)
 510                 sr_err("Failed to initialize the driver: %d.", ret);
 511
 512         return ret;
 513 }
 514
 515 /**
 516  * Tell a hardware driver to scan for devices.
 517  *
 518  * In addition to the detection, the devices that are found are also
 519  * initialized automatically. On some devices, this involves a firmware upload,
 520  * or other such measures.
 521  *
 522  * The order in which the system is scanned for devices is not specified. The
 523  * caller should not assume or rely on any specific order.
 524  *
 525  * Before calling sr_driver_scan(), the user must have previously initialized
 526  * the driver by calling sr_driver_init().
 527  *
 528  * @param driver The driver that should scan. This must be a pointer to one of
 529  *               the entries returned by sr_driver_list(). Must not be NULL.
 530  * @param options A list of 'struct sr_hwopt' options to pass to the driver's
 531  *                scanner. Can be NULL/empty.
 532  *
 533  * @return A GSList * of 'struct sr_dev_inst', or NULL if no devices were
 534  *         found (or errors were encountered). This list must be freed by the
 535  *         caller using g_slist_free(), but without freeing the data pointed
 536  *         to in the list.
 537  *
 538  * @since 0.2.0
 539  */
 540 SR_API GSList *sr_driver_scan(struct sr_dev_driver *driver, GSList *options)
 541 {
 542         GSList *l;
 543
 544         if (!driver) {
 545                 sr_err("Invalid driver, can't scan for devices.");
 546                 return NULL;
 547         }
 548
 549         if (!driver->priv) {
 550                 sr_err("Driver not initialized, can't scan for devices.");
 551                 return NULL;
 552         }
 553
 554         l = driver->scan(options);
 555
 556         sr_spew("Scan of '%s' found %d devices.", driver->name,
 557                 g_slist_length(l));
 558
 559         return l;
 560 }
 561
 562 /** Call driver cleanup function for all drivers.
 563  *  @private */
 564 SR_PRIV void sr_hw_cleanup_all(void)
 565 {
 566         int i;
 567         struct sr_dev_driver **drivers;
 568
 569         drivers = sr_driver_list();
 570         for (i = 0; drivers[i]; i++) {
 571                 if (drivers[i]->cleanup)
 572                         drivers[i]->cleanup();
 573         }
 574 }
 575
 576 /** Allocate struct sr_config.
 577  *  A floating reference can be passed in for data.
 578  *  @private
 579  */
 580 SR_PRIV struct sr_config *sr_config_new(int key, GVariant *data)
 581 {
 582         struct sr_config *src;
 583
 584         if (!(src = g_try_malloc(sizeof(struct sr_config))))
 585                 return NULL;
 586         src->key = key;
 587         src->data = g_variant_ref_sink(data);
 588
 589         return src;
 590 }
 591
 592 /** Free struct sr_config.
 593  *  @private
 594  */
 595 SR_PRIV void sr_config_free(struct sr_config *src)
 596 {
 597
 598         if (!src || !src->data) {
 599                 sr_err("%s: invalid data!", __func__);
 600                 return;
 601         }
 602
 603         g_variant_unref(src->data);
 604         g_free(src);
 605
 606 }
 607
 608 /**
 609  * Query value of a configuration key at the given driver or device instance.
 610  *
 611  * @param[in] driver The sr_dev_driver struct to query.
 612  * @param[in] sdi (optional) If the key is specific to a device, this must
 613  *            contain a pointer to the struct sr_dev_inst to be checked.
 614  *            Otherwise it must be NULL.
 615  * @param[in] cg The channel group on the device for which to list the
 616  *                    values, or NULL.
 617  * @param[in] key The configuration key (SR_CONF_*).
 618  * @param[in,out] data Pointer to a GVariant where the value will be stored.
 619  *             Must not be NULL. The caller is given ownership of the GVariant
 620  *             and must thus decrease the refcount after use. However if
 621  *             this function returns an error code, the field should be
 622  *             considered unused, and should not be unreferenced.
 623  *
 624  * @retval SR_OK Success.
 625  * @retval SR_ERR Error.
 626  * @retval SR_ERR_ARG The driver doesn't know that key, but this is not to be
 627  *          interpreted as an error by the caller; merely as an indication
 628  *          that it's not applicable.
 629  *
 630  * @since 0.3.0
 631  */
 632 SR_API int sr_config_get(const struct sr_dev_driver *driver,
 633                 const struct sr_dev_inst *sdi,
 634                 const struct sr_channel_group *cg,
 635                 int key, GVariant **data)
 636 {
 637         int ret;
 638
 639         if (!driver || !data)
 640                 return SR_ERR;
 641
 642         if (!driver->config_get)
 643                 return SR_ERR_ARG;
 644
 645         if ((ret = driver->config_get(key, data, sdi, cg)) == SR_OK) {
 646                 /* Got a floating reference from the driver. Sink it here,
 647                  * caller will need to unref when done with it. */
 648                 g_variant_ref_sink(*data);
 649         }
 650
 651         return ret;
 652 }
 653
 654 /**
 655  * Set value of a configuration key in a device instance.
 656  *
 657  * @param[in] sdi The device instance.
 658  * @param[in] cg The channel group on the device for which to list the
 659  *                    values, or NULL.
 660  * @param[in] key The configuration key (SR_CONF_*).
 661  * @param data The new value for the key, as a GVariant with GVariantType
 662  *        appropriate to that key. A floating reference can be passed
 663  *        in; its refcount will be sunk and unreferenced after use.
 664  *
 665  * @retval SR_OK Success.
 666  * @retval SR_ERR Error.
 667  * @retval SR_ERR_ARG The driver doesn't know that key, but this is not to be
 668  *          interpreted as an error by the caller; merely as an indication
 669  *          that it's not applicable.
 670  *
 671  * @since 0.3.0
 672  */
 673 SR_API int sr_config_set(const struct sr_dev_inst *sdi,
 674                 const struct sr_channel_group *cg,
 675                 int key, GVariant *data)
 676 {
 677         int ret;
 678
 679         g_variant_ref_sink(data);
 680
 681         if (!sdi || !sdi->driver || !data)
 682                 ret = SR_ERR;
 683         else if (!sdi->driver->config_set)
 684                 ret = SR_ERR_ARG;
 685         else
 686                 ret = sdi->driver->config_set(key, data, sdi, cg);
 687
 688         g_variant_unref(data);
 689
 690         return ret;
 691 }
 692
 693 /**
 694  * Apply configuration settings to the device hardware.
 695  *
 696  * @param sdi The device instance.
 697  *
 698  * @return SR_OK upon success or SR_ERR in case of error.
 699  *
 700  * @since 0.3.0
 701  */
 702 SR_API int sr_config_commit(const struct sr_dev_inst *sdi)
 703 {
 704         int ret;
 705
 706         if (!sdi || !sdi->driver)
 707                 ret = SR_ERR;
 708         else if (!sdi->driver->config_commit)
 709                 ret = SR_OK;
 710         else
 711                 ret = sdi->driver->config_commit(sdi);
 712
 713         return ret;
 714 }
 715
 716 /**
 717  * List all possible values for a configuration key.
 718  *
 719  * @param[in] driver The sr_dev_driver struct to query.
 720  * @param[in] sdi (optional) If the key is specific to a device, this must
 721  *            contain a pointer to the struct sr_dev_inst to be checked.
 722  * @param[in] cg The channel group on the device for which to list the
 723  *                    values, or NULL.
 724  * @param[in] key The configuration key (SR_CONF_*).
 725  * @param[in,out] data A pointer to a GVariant where the list will be stored.
 726  *             The caller is given ownership of the GVariant and must thus
 727  *             unref the GVariant after use. However if this function
 728  *             returns an error code, the field should be considered
 729  *             unused, and should not be unreferenced.
 730  *
 731  * @retval SR_OK Success.
 732  * @retval SR_ERR Error.
 733  * @retval SR_ERR_ARG The driver doesn't know that key, but this is not to be
 734  *          interpreted as an error by the caller; merely as an indication
 735  *          that it's not applicable.
 736  *
 737  * @since 0.3.0
 738  */
 739 SR_API int sr_config_list(const struct sr_dev_driver *driver,
 740                 const struct sr_dev_inst *sdi,
 741                 const struct sr_channel_group *cg,
 742                 int key, GVariant **data)
 743 {
 744         int ret;
 745
 746         if (!driver || !data)
 747                 ret = SR_ERR;
 748         else if (!driver->config_list)
 749                 ret = SR_ERR_ARG;
 750         else if ((ret = driver->config_list(key, data, sdi, cg)) == SR_OK)
 751                 g_variant_ref_sink(*data);
 752
 753         return ret;
 754 }
 755
 756 /**
 757  * Get information about a configuration key, by key.
 758  *
 759  * @param[in] key The configuration key.
 760  *
 761  * @return A pointer to a struct sr_config_info, or NULL if the key
 762  *         was not found.
 763  *
 764  * @since 0.2.0
 765  */
 766 SR_API const struct sr_config_info *sr_config_info_get(int key)
 767 {
 768         int i;
 769
 770         for (i = 0; sr_config_info_data[i].key; i++) {
 771                 if (sr_config_info_data[i].key == key)
 772                         return &sr_config_info_data[i];
 773         }
 774
 775         return NULL;
 776 }
 777
 778 /**
 779  * Get information about a configuration key, by name.
 780  *
 781  * @param[in] optname The configuration key.
 782  *
 783  * @return A pointer to a struct sr_config_info, or NULL if the key
 784  *         was not found.
 785  *
 786  * @since 0.2.0
 787  */
 788 SR_API const struct sr_config_info *sr_config_info_name_get(const char *optname)
 789 {
 790         int i;
 791
 792         for (i = 0; sr_config_info_data[i].key; i++) {
 793                 if (!strcmp(sr_config_info_data[i].id, optname))
 794                         return &sr_config_info_data[i];
 795         }
 796
 797         return NULL;
 798 }
 799
 800 /* Unnecessary level of indirection follows. */
 801
 802 /** @private
 803  *  @see sr_session_source_remove()
 804  */
 805 SR_PRIV int sr_source_remove(int fd)
 806 {
 807         return sr_session_source_remove(fd);
 808 }
 809
 810 /** @private
 811  *  @see sr_session_source_add()
 812  */
 813 SR_PRIV int sr_source_add(int fd, int events, int timeout,
 814                           sr_receive_data_callback cb, void *cb_data)
 815 {
 816         return sr_session_source_add(fd, events, timeout, cb, cb_data);
 817 }
 818
 819 /** @} */