src/hardware/rigol-ds/api.c

   1 /*
   2  * This file is part of the libsigrok project.
   3  *
   4  * Copyright (C) 2012 Martin Ling <martin-git@earth.li>
   5  * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
   6  * Copyright (C) 2013 Mathias Grimmberger <mgri@zaphod.sax.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 <config.h>
  23 #include <fcntl.h>
  24 #include <unistd.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <strings.h>
  28 #include <math.h>
  29 #include <glib.h>
  30 #include <libsigrok/libsigrok.h>
  31 #include "libsigrok-internal.h"
  32 #include "scpi.h"
  33 #include "protocol.h"
  34
  35 static const uint32_t scanopts[] = {
  36         SR_CONF_CONN,
  37         SR_CONF_SERIALCOMM,
  38 };
  39
  40 static const uint32_t drvopts[] = {
  41         SR_CONF_OSCILLOSCOPE,
  42 };
  43
  44 static const uint32_t devopts[] = {
  45         SR_CONF_LIMIT_FRAMES | SR_CONF_SET,
  46         SR_CONF_SAMPLERATE | SR_CONF_GET,
  47         SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  48         SR_CONF_NUM_HDIV | SR_CONF_GET,
  49         SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_SET,
  50         SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  51         SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  52         SR_CONF_TRIGGER_LEVEL | SR_CONF_GET | SR_CONF_SET,
  53         SR_CONF_DATA_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  54 };
  55
  56 static const uint32_t devopts_cg_analog[] = {
  57         SR_CONF_NUM_VDIV | SR_CONF_GET,
  58         SR_CONF_VDIV | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  59         SR_CONF_COUPLING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  60         SR_CONF_PROBE_FACTOR | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST,
  61 };
  62
  63 static const uint64_t timebases[][2] = {
  64         /* nanoseconds */
  65         { 1, 1000000000 },
  66         { 2, 1000000000 },
  67         { 5, 1000000000 },
  68         { 10, 1000000000 },
  69         { 20, 1000000000 },
  70         { 50, 1000000000 },
  71         { 100, 1000000000 },
  72         { 500, 1000000000 },
  73         /* microseconds */
  74         { 1, 1000000 },
  75         { 2, 1000000 },
  76         { 5, 1000000 },
  77         { 10, 1000000 },
  78         { 20, 1000000 },
  79         { 50, 1000000 },
  80         { 100, 1000000 },
  81         { 200, 1000000 },
  82         { 500, 1000000 },
  83         /* milliseconds */
  84         { 1, 1000 },
  85         { 2, 1000 },
  86         { 5, 1000 },
  87         { 10, 1000 },
  88         { 20, 1000 },
  89         { 50, 1000 },
  90         { 100, 1000 },
  91         { 200, 1000 },
  92         { 500, 1000 },
  93         /* seconds */
  94         { 1, 1 },
  95         { 2, 1 },
  96         { 5, 1 },
  97         { 10, 1 },
  98         { 20, 1 },
  99         { 50, 1 },
 100         { 100, 1 },
 101         { 200, 1 },
 102         { 500, 1 },
 103         { 1000, 1 },
 104 };
 105
 106 static const uint64_t vdivs[][2] = {
 107         /* microvolts */
 108         { 500, 1000000 },
 109         /* millivolts */
 110         { 1, 1000 },
 111         { 2, 1000 },
 112         { 5, 1000 },
 113         { 10, 1000 },
 114         { 20, 1000 },
 115         { 50, 1000 },
 116         { 100, 1000 },
 117         { 200, 1000 },
 118         { 500, 1000 },
 119         /* volts */
 120         { 1, 1 },
 121         { 2, 1 },
 122         { 5, 1 },
 123         { 10, 1 },
 124         { 20, 1 },
 125         { 50, 1 },
 126         { 100, 1 },
 127 };
 128
 129 static const char *trigger_sources_2_chans[] = {
 130         "CH1", "CH2",
 131         "EXT", "AC Line",
 132         "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
 133         "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15",
 134 };
 135
 136 static const char *trigger_sources_4_chans[] = {
 137         "CH1", "CH2", "CH3", "CH4",
 138         "EXT", "AC Line",
 139         "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7",
 140         "D8", "D9", "D10", "D11", "D12", "D13", "D14", "D15",
 141 };
 142
 143 static const char *trigger_slopes[] = {
 144         "r", "f",
 145 };
 146
 147 static const char *coupling[] = {
 148         "AC", "DC", "GND",
 149 };
 150
 151 static const uint64_t probe_factor[] = {
 152         1, 2, 5, 10, 20, 50, 100, 200, 500, 1000,
 153 };
 154
 155 /* Do not change the order of entries */
 156 static const char *data_sources[] = {
 157         "Live",
 158         "Memory",
 159         "Segmented",
 160 };
 161
 162 static const struct rigol_ds_command std_cmd[] = {
 163         { CMD_GET_HORIZ_TRIGGERPOS, ":TIM:OFFS?" },
 164         { CMD_SET_HORIZ_TRIGGERPOS, ":TIM:OFFS %s" },
 165 };
 166
 167 static const struct rigol_ds_command mso7000a_cmd[] = {
 168         { CMD_GET_HORIZ_TRIGGERPOS, ":TIM:POS?" },
 169         { CMD_SET_HORIZ_TRIGGERPOS, ":TIM:POS %s" },
 170 };
 171
 172 enum vendor {
 173         RIGOL,
 174         AGILENT,
 175 };
 176
 177 enum series {
 178         VS5000,
 179         DS1000,
 180         DS2000,
 181         DS2000A,
 182         DSO1000,
 183         DSO1000B,
 184         DS1000Z,
 185         DS4000,
 186         MSO5000,
 187         MSO7000A,
 188 };
 189
 190 /* short name, full name */
 191 static const struct rigol_ds_vendor supported_vendors[] = {
 192         [RIGOL] = {"Rigol", "Rigol Technologies"},
 193         [AGILENT] = {"Agilent", "Agilent Technologies"},
 194 };
 195
 196 #define VENDOR(x) &supported_vendors[x]
 197 /* vendor, series/name, protocol, data format, max timebase, min vdiv,
 198  * number of horizontal divs, live waveform samples, memory buffer samples */
 199 static const struct rigol_ds_series supported_series[] = {
 200         [VS5000] = {VENDOR(RIGOL), "VS5000", PROTOCOL_V1, FORMAT_RAW,
 201                 {50, 1}, {2, 1000}, 14, 2048, 0},
 202         [DS1000] = {VENDOR(RIGOL), "DS1000", PROTOCOL_V2, FORMAT_IEEE488_2,
 203                 {50, 1}, {2, 1000}, 12, 600, 1048576},
 204         [DS2000] = {VENDOR(RIGOL), "DS2000", PROTOCOL_V3, FORMAT_IEEE488_2,
 205                 {500, 1}, {500, 1000000}, 14, 1400, 14000},
 206         [DS2000A] = {VENDOR(RIGOL), "DS2000A", PROTOCOL_V3, FORMAT_IEEE488_2,
 207                 {1000, 1}, {500, 1000000}, 14, 1400, 14000},
 208         [DSO1000] = {VENDOR(AGILENT), "DSO1000", PROTOCOL_V3, FORMAT_IEEE488_2,
 209                 {50, 1}, {2, 1000}, 12, 600, 20480},
 210         [DSO1000B] = {VENDOR(AGILENT), "DSO1000", PROTOCOL_V3, FORMAT_IEEE488_2,
 211                 {50, 1}, {2, 1000}, 12, 600, 20480},
 212         [DS1000Z] = {VENDOR(RIGOL), "DS1000Z", PROTOCOL_V4, FORMAT_IEEE488_2,
 213                 {50, 1}, {1, 1000}, 12, 1200, 12000000},
 214         [DS4000] = {VENDOR(RIGOL), "DS4000", PROTOCOL_V4, FORMAT_IEEE488_2,
 215                 {1000, 1}, {1, 1000}, 14, 1400, 0},
 216         [MSO5000] = {VENDOR(RIGOL), "MSO5000", PROTOCOL_V5, FORMAT_IEEE488_2,
 217                 {1000, 1}, {500, 1000000}, 10, 1000, 0},
 218         [MSO7000A] = {VENDOR(AGILENT), "MSO7000A", PROTOCOL_V4, FORMAT_IEEE488_2,
 219                 {50, 1}, {2, 1000}, 10, 1000, 8000000},
 220 };
 221
 222 #define SERIES(x) &supported_series[x]
 223 /*
 224  * Use a macro to select the correct list of trigger sources and its length
 225  * based on the number of analog channels and presence of digital channels.
 226  */
 227 #define CH_INFO(num, digital) \
 228         num, digital, trigger_sources_##num##_chans, \
 229         digital ? ARRAY_SIZE(trigger_sources_##num##_chans) : (num + 2)
 230 /* series, model, min timebase, analog channels, digital */
 231 static const struct rigol_ds_model supported_models[] = {
 232         {SERIES(VS5000), "VS5022", {20, 1000000000}, CH_INFO(2, false), std_cmd},
 233         {SERIES(VS5000), "VS5042", {10, 1000000000}, CH_INFO(2, false), std_cmd},
 234         {SERIES(VS5000), "VS5062", {5, 1000000000}, CH_INFO(2, false), std_cmd},
 235         {SERIES(VS5000), "VS5102", {2, 1000000000}, CH_INFO(2, false), std_cmd},
 236         {SERIES(VS5000), "VS5202", {2, 1000000000}, CH_INFO(2, false), std_cmd},
 237         {SERIES(VS5000), "VS5022D", {20, 1000000000}, CH_INFO(2, true), std_cmd},
 238         {SERIES(VS5000), "VS5042D", {10, 1000000000}, CH_INFO(2, true), std_cmd},
 239         {SERIES(VS5000), "VS5062D", {5, 1000000000}, CH_INFO(2, true), std_cmd},
 240         {SERIES(VS5000), "VS5102D", {2, 1000000000}, CH_INFO(2, true), std_cmd},
 241         {SERIES(VS5000), "VS5202D", {2, 1000000000}, CH_INFO(2, true), std_cmd},
 242         {SERIES(DS1000), "DS1052E", {5, 1000000000}, CH_INFO(2, false), std_cmd},
 243         {SERIES(DS1000), "DS1102E", {2, 1000000000}, CH_INFO(2, false), std_cmd},
 244         {SERIES(DS1000), "DS1152E", {2, 1000000000}, CH_INFO(2, false), std_cmd},
 245         {SERIES(DS1000), "DS1152E-EDU", {2, 1000000000}, CH_INFO(2, false), std_cmd},
 246         {SERIES(DS1000), "DS1052D", {5, 1000000000}, CH_INFO(2, true), std_cmd},
 247         {SERIES(DS1000), "DS1102D", {2, 1000000000}, CH_INFO(2, true), std_cmd},
 248         {SERIES(DS1000), "DS1152D", {2, 1000000000}, CH_INFO(2, true), std_cmd},
 249         {SERIES(DS2000), "DS2072", {5, 1000000000}, CH_INFO(2, false), std_cmd},
 250         {SERIES(DS2000), "DS2102", {5, 1000000000}, CH_INFO(2, false), std_cmd},
 251         {SERIES(DS2000), "DS2202", {2, 1000000000}, CH_INFO(2, false), std_cmd},
 252         {SERIES(DS2000), "DS2302", {1, 1000000000}, CH_INFO(2, false), std_cmd},
 253         {SERIES(DS2000A), "DS2072A", {5, 1000000000}, CH_INFO(2, false), std_cmd},
 254         {SERIES(DS2000A), "DS2102A", {5, 1000000000}, CH_INFO(2, false), std_cmd},
 255         {SERIES(DS2000A), "DS2202A", {2, 1000000000}, CH_INFO(2, false), std_cmd},
 256         {SERIES(DS2000A), "DS2302A", {1, 1000000000}, CH_INFO(2, false), std_cmd},
 257         {SERIES(DS2000A), "MSO2072A", {5, 1000000000}, CH_INFO(2, true), std_cmd},
 258         {SERIES(DS2000A), "MSO2102A", {5, 1000000000}, CH_INFO(2, true), std_cmd},
 259         {SERIES(DS2000A), "MSO2202A", {2, 1000000000}, CH_INFO(2, true), std_cmd},
 260         {SERIES(DS2000A), "MSO2302A", {1, 1000000000}, CH_INFO(2, true), std_cmd},
 261         {SERIES(DSO1000), "DSO1002A", {5, 1000000000}, CH_INFO(2, false), std_cmd},
 262         {SERIES(DSO1000), "DSO1004A", {5, 1000000000}, CH_INFO(4, false), std_cmd},
 263         {SERIES(DSO1000), "DSO1012A", {2, 1000000000}, CH_INFO(2, false), std_cmd},
 264         {SERIES(DSO1000), "DSO1014A", {2, 1000000000}, CH_INFO(4, false), std_cmd},
 265         {SERIES(DSO1000), "DSO1022A", {2, 1000000000}, CH_INFO(2, false), std_cmd},
 266         {SERIES(DSO1000), "DSO1024A", {2, 1000000000}, CH_INFO(4, false), std_cmd},
 267         {SERIES(DSO1000B), "DSO1052B", {2, 1000000000}, CH_INFO(2, false), std_cmd},
 268         {SERIES(DSO1000B), "DSO1072B", {2, 1000000000}, CH_INFO(2, false), std_cmd},
 269         {SERIES(DSO1000B), "DSO1102B", {2, 1000000000}, CH_INFO(2, false), std_cmd},
 270         {SERIES(DSO1000B), "DSO1152B", {2, 1000000000}, CH_INFO(2, false), std_cmd},
 271         {SERIES(DS1000Z), "DS1054Z", {5, 1000000000}, CH_INFO(4, false), std_cmd},
 272         {SERIES(DS1000Z), "DS1074Z", {5, 1000000000}, CH_INFO(4, false), std_cmd},
 273         {SERIES(DS1000Z), "DS1104Z", {5, 1000000000}, CH_INFO(4, false), std_cmd},
 274         {SERIES(DS1000Z), "DS1074Z-S", {5, 1000000000}, CH_INFO(4, false), std_cmd},
 275         {SERIES(DS1000Z), "DS1104Z-S", {5, 1000000000}, CH_INFO(4, false), std_cmd},
 276         {SERIES(DS1000Z), "DS1074Z Plus", {5, 1000000000}, CH_INFO(4, false), std_cmd},
 277         {SERIES(DS1000Z), "DS1104Z Plus", {5, 1000000000}, CH_INFO(4, false), std_cmd},
 278         {SERIES(DS1000Z), "DS1202Z-E", {2, 1000000000}, CH_INFO(2, false), std_cmd},
 279         {SERIES(DS1000Z), "MSO1074Z", {5, 1000000000}, CH_INFO(4, true), std_cmd},
 280         {SERIES(DS1000Z), "MSO1104Z", {5, 1000000000}, CH_INFO(4, true), std_cmd},
 281         {SERIES(DS1000Z), "MSO1074Z-S", {5, 1000000000}, CH_INFO(4, true), std_cmd},
 282         {SERIES(DS1000Z), "MSO1104Z-S", {5, 1000000000}, CH_INFO(4, true), std_cmd},
 283         {SERIES(DS4000), "DS4024", {1, 1000000000}, CH_INFO(4, false), std_cmd},
 284         {SERIES(MSO5000), "MSO5072", {1, 1000000000}, CH_INFO(2, true), std_cmd},
 285         {SERIES(MSO5000), "MSO5074", {1, 1000000000}, CH_INFO(4, true), std_cmd},
 286         {SERIES(MSO5000), "MSO5102", {1, 1000000000}, CH_INFO(2, true), std_cmd},
 287         {SERIES(MSO5000), "MSO5104", {1, 1000000000}, CH_INFO(4, true), std_cmd},
 288         {SERIES(MSO5000), "MSO5204", {1, 1000000000}, CH_INFO(4, true), std_cmd},
 289         {SERIES(MSO5000), "MSO5354", {1, 1000000000}, CH_INFO(4, true), std_cmd},
 290         /* TODO: Digital channels are not yet supported on MSO7000A. */
 291         {SERIES(MSO7000A), "MSO7034A", {2, 1000000000}, CH_INFO(4, false), mso7000a_cmd},
 292 };
 293
 294 static struct sr_dev_driver rigol_ds_driver_info;
 295
 296 static void clear_helper(struct dev_context *devc)
 297 {
 298         unsigned int i;
 299
 300         g_free(devc->data);
 301         g_free(devc->buffer);
 302         for (i = 0; i < ARRAY_SIZE(devc->coupling); i++)
 303                 g_free(devc->coupling[i]);
 304         g_free(devc->trigger_source);
 305         g_free(devc->trigger_slope);
 306         g_free(devc->analog_groups);
 307 }
 308
 309 static int dev_clear(const struct sr_dev_driver *di)
 310 {
 311         return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper);
 312 }
 313
 314 static struct sr_dev_inst *probe_device(struct sr_scpi_dev_inst *scpi)
 315 {
 316         struct dev_context *devc;
 317         struct sr_dev_inst *sdi;
 318         struct sr_scpi_hw_info *hw_info;
 319         struct sr_channel *ch;
 320         long n[3];
 321         unsigned int i;
 322         const struct rigol_ds_model *model = NULL;
 323         gchar *channel_name, **version;
 324
 325         if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
 326                 sr_info("Couldn't get IDN response, retrying.");
 327                 sr_scpi_close(scpi);
 328                 sr_scpi_open(scpi);
 329                 if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) {
 330                         sr_info("Couldn't get IDN response.");
 331                         return NULL;
 332                 }
 333         }
 334
 335         for (i = 0; i < ARRAY_SIZE(supported_models); i++) {
 336                 if (!g_ascii_strcasecmp(hw_info->manufacturer,
 337                                         supported_models[i].series->vendor->full_name) &&
 338                                 !strcmp(hw_info->model, supported_models[i].name)) {
 339                         model = &supported_models[i];
 340                         break;
 341                 }
 342         }
 343
 344         if (!model) {
 345                 sr_scpi_hw_info_free(hw_info);
 346                 return NULL;
 347         }
 348
 349         sdi = g_malloc0(sizeof(struct sr_dev_inst));
 350         sdi->vendor = g_strdup(model->series->vendor->name);
 351         sdi->model = g_strdup(model->name);
 352         sdi->version = g_strdup(hw_info->firmware_version);
 353         sdi->conn = scpi;
 354         sdi->driver = &rigol_ds_driver_info;
 355         sdi->inst_type = SR_INST_SCPI;
 356         sdi->serial_num = g_strdup(hw_info->serial_number);
 357         devc = g_malloc0(sizeof(struct dev_context));
 358         devc->limit_frames = 0;
 359         devc->model = model;
 360         devc->format = model->series->format;
 361
 362         /* DS1000 models with firmware before 0.2.4 used the old data format. */
 363         if (model->series == SERIES(DS1000)) {
 364                 version = g_strsplit(hw_info->firmware_version, ".", 0);
 365                 do {
 366                         if (!version[0] || !version[1] || !version[2])
 367                                 break;
 368                         if (version[0][0] == 0 || version[1][0] == 0 || version[2][0] == 0)
 369                                 break;
 370                         for (i = 0; i < 3; i++) {
 371                                 if (sr_atol(version[i], &n[i]) != SR_OK)
 372                                         break;
 373                         }
 374                         if (i != 3)
 375                                 break;
 376                         scpi->firmware_version = n[0] * 100 + n[1] * 10 + n[2];
 377                         if (scpi->firmware_version < 24) {
 378                                 sr_dbg("Found DS1000 firmware < 0.2.4, using raw data format.");
 379                                 devc->format = FORMAT_RAW;
 380                         }
 381                         break;
 382                 } while (0);
 383                 g_strfreev(version);
 384         }
 385
 386         sr_scpi_hw_info_free(hw_info);
 387
 388         devc->analog_groups = g_malloc0(sizeof(struct sr_channel_group*) *
 389                                         model->analog_channels);
 390
 391         for (i = 0; i < model->analog_channels; i++) {
 392                 channel_name = g_strdup_printf("CH%d", i + 1);
 393                 ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel_name);
 394
 395                 devc->analog_groups[i] = g_malloc0(sizeof(struct sr_channel_group));
 396
 397                 devc->analog_groups[i]->name = channel_name;
 398                 devc->analog_groups[i]->channels = g_slist_append(NULL, ch);
 399                 sdi->channel_groups = g_slist_append(sdi->channel_groups,
 400                                 devc->analog_groups[i]);
 401         }
 402
 403         if (devc->model->has_digital) {
 404                 devc->digital_group = g_malloc0(sizeof(struct sr_channel_group));
 405
 406                 for (i = 0; i < ARRAY_SIZE(devc->digital_channels); i++) {
 407                         channel_name = g_strdup_printf("D%d", i);
 408                         ch = sr_channel_new(sdi, i, SR_CHANNEL_LOGIC, TRUE, channel_name);
 409                         g_free(channel_name);
 410                         devc->digital_group->channels = g_slist_append(
 411                                         devc->digital_group->channels, ch);
 412                 }
 413                 devc->digital_group->name = g_strdup("LA");
 414                 sdi->channel_groups = g_slist_append(sdi->channel_groups,
 415                                 devc->digital_group);
 416         }
 417
 418         for (i = 0; i < ARRAY_SIZE(timebases); i++) {
 419                 if (!memcmp(&devc->model->min_timebase, &timebases[i], sizeof(uint64_t[2])))
 420                         devc->timebases = &timebases[i];
 421                 if (!memcmp(&devc->model->series->max_timebase, &timebases[i], sizeof(uint64_t[2])))
 422                         devc->num_timebases = &timebases[i] - devc->timebases + 1;
 423         }
 424
 425         for (i = 0; i < ARRAY_SIZE(vdivs); i++) {
 426                 if (!memcmp(&devc->model->series->min_vdiv,
 427                                         &vdivs[i], sizeof(uint64_t[2]))) {
 428                         devc->vdivs = &vdivs[i];
 429                         devc->num_vdivs = ARRAY_SIZE(vdivs) - i;
 430                 }
 431         }
 432
 433         devc->buffer = g_malloc(ACQ_BUFFER_SIZE);
 434         devc->data = g_malloc(ACQ_BUFFER_SIZE * sizeof(float));
 435
 436         devc->data_source = DATA_SOURCE_LIVE;
 437
 438         sdi->priv = devc;
 439
 440         return sdi;
 441 }
 442
 443 static GSList *scan(struct sr_dev_driver *di, GSList *options)
 444 {
 445         return sr_scpi_scan(di->context, options, probe_device);
 446 }
 447
 448 static int dev_open(struct sr_dev_inst *sdi)
 449 {
 450         int ret;
 451         struct sr_scpi_dev_inst *scpi = sdi->conn;
 452
 453         if ((ret = sr_scpi_open(scpi)) < 0) {
 454                 sr_err("Failed to open SCPI device: %s.", sr_strerror(ret));
 455                 return SR_ERR;
 456         }
 457
 458         if ((ret = rigol_ds_get_dev_cfg(sdi)) < 0) {
 459                 sr_err("Failed to get device config: %s.", sr_strerror(ret));
 460                 return SR_ERR;
 461         }
 462
 463         return SR_OK;
 464 }
 465
 466 static int dev_close(struct sr_dev_inst *sdi)
 467 {
 468         struct sr_scpi_dev_inst *scpi;
 469         struct dev_context *devc;
 470
 471         scpi = sdi->conn;
 472         devc = sdi->priv;
 473
 474         if (!scpi)
 475                 return SR_ERR_BUG;
 476
 477         if (devc->model->series->protocol == PROTOCOL_V2)
 478                 rigol_ds_config_set(sdi, ":KEY:LOCK DISABLE");
 479
 480         return sr_scpi_close(scpi);
 481 }
 482
 483 static int analog_frame_size(const struct sr_dev_inst *sdi)
 484 {
 485         struct dev_context *devc = sdi->priv;
 486         struct sr_channel *ch;
 487         int analog_channels = 0;
 488         GSList *l;
 489
 490         for (l = sdi->channels; l; l = l->next) {
 491                 ch = l->data;
 492                 if (ch->type == SR_CHANNEL_ANALOG && ch->enabled)
 493                         analog_channels++;
 494         }
 495
 496         if (analog_channels == 0)
 497                 return 0;
 498
 499         switch (devc->data_source) {
 500         case DATA_SOURCE_LIVE:
 501                 return devc->model->series->live_samples;
 502         case DATA_SOURCE_MEMORY:
 503                 return devc->model->series->buffer_samples / analog_channels;
 504         default:
 505                 return 0;
 506         }
 507 }
 508
 509 static int digital_frame_size(const struct sr_dev_inst *sdi)
 510 {
 511         struct dev_context *devc = sdi->priv;
 512
 513         switch (devc->data_source) {
 514         case DATA_SOURCE_LIVE:
 515                 return devc->model->series->live_samples * 2;
 516         case DATA_SOURCE_MEMORY:
 517                 return devc->model->series->buffer_samples * 2;
 518         default:
 519                 return 0;
 520         }
 521 }
 522
 523 static int config_get(uint32_t key, GVariant **data,
 524         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 525 {
 526         struct dev_context *devc;
 527         struct sr_channel *ch;
 528         const char *tmp_str;
 529         int analog_channel = -1;
 530         float smallest_diff = INFINITY;
 531         int idx = -1;
 532         unsigned i;
 533
 534         if (!sdi)
 535                 return SR_ERR_ARG;
 536
 537         devc = sdi->priv;
 538
 539         /* If a channel group is specified, it must be a valid one. */
 540         if (cg && !g_slist_find(sdi->channel_groups, cg)) {
 541                 sr_err("Invalid channel group specified.");
 542                 return SR_ERR;
 543         }
 544
 545         if (cg) {
 546                 ch = g_slist_nth_data(cg->channels, 0);
 547                 if (!ch)
 548                         return SR_ERR;
 549                 if (ch->type == SR_CHANNEL_ANALOG) {
 550                         if (ch->name[2] < '1' || ch->name[2] > '4')
 551                                 return SR_ERR;
 552                         analog_channel = ch->name[2] - '1';
 553                 }
 554         }
 555
 556         switch (key) {
 557         case SR_CONF_NUM_HDIV:
 558                 *data = g_variant_new_int32(devc->model->series->num_horizontal_divs);
 559                 break;
 560         case SR_CONF_NUM_VDIV:
 561                 *data = g_variant_new_int32(devc->num_vdivs);
 562                 break;
 563         case SR_CONF_DATA_SOURCE:
 564                 if (devc->data_source == DATA_SOURCE_LIVE)
 565                         *data = g_variant_new_string("Live");
 566                 else if (devc->data_source == DATA_SOURCE_MEMORY)
 567                         *data = g_variant_new_string("Memory");
 568                 else
 569                         *data = g_variant_new_string("Segmented");
 570                 break;
 571         case SR_CONF_SAMPLERATE:
 572                 *data = g_variant_new_uint64(devc->sample_rate);
 573                 break;
 574         case SR_CONF_TRIGGER_SOURCE:
 575                 if (!strcmp(devc->trigger_source, "ACL"))
 576                         tmp_str = "AC Line";
 577                 else if (!strcmp(devc->trigger_source, "CHAN1"))
 578                         tmp_str = "CH1";
 579                 else if (!strcmp(devc->trigger_source, "CHAN2"))
 580                         tmp_str = "CH2";
 581                 else if (!strcmp(devc->trigger_source, "CHAN3"))
 582                         tmp_str = "CH3";
 583                 else if (!strcmp(devc->trigger_source, "CHAN4"))
 584                         tmp_str = "CH4";
 585                 else
 586                         tmp_str = devc->trigger_source;
 587                 *data = g_variant_new_string(tmp_str);
 588                 break;
 589         case SR_CONF_TRIGGER_SLOPE:
 590                 if (!strncmp(devc->trigger_slope, "POS", 3)) {
 591                         tmp_str = "r";
 592                 } else if (!strncmp(devc->trigger_slope, "NEG", 3)) {
 593                         tmp_str = "f";
 594                 } else {
 595                         sr_dbg("Unknown trigger slope: '%s'.", devc->trigger_slope);
 596                         return SR_ERR_NA;
 597                 }
 598                 *data = g_variant_new_string(tmp_str);
 599                 break;
 600         case SR_CONF_TRIGGER_LEVEL:
 601                 *data = g_variant_new_double(devc->trigger_level);
 602                 break;
 603         case SR_CONF_TIMEBASE:
 604                 for (i = 0; i < devc->num_timebases; i++) {
 605                         float tb = (float)devc->timebases[i][0] / devc->timebases[i][1];
 606                         float diff = fabs(devc->timebase - tb);
 607                         if (diff < smallest_diff) {
 608                                 smallest_diff = diff;
 609                                 idx = i;
 610                         }
 611                 }
 612                 if (idx < 0) {
 613                         sr_dbg("Negative timebase index: %d.", idx);
 614                         return SR_ERR_NA;
 615                 }
 616                 *data = g_variant_new("(tt)", devc->timebases[idx][0],
 617                                               devc->timebases[idx][1]);
 618                 break;
 619         case SR_CONF_VDIV:
 620                 if (analog_channel < 0) {
 621                         sr_dbg("Negative analog channel: %d.", analog_channel);
 622                         return SR_ERR_NA;
 623                 }
 624                 for (i = 0; i < ARRAY_SIZE(vdivs); i++) {
 625                         float vdiv = (float)vdivs[i][0] / vdivs[i][1];
 626                         float diff = fabs(devc->vdiv[analog_channel] - vdiv);
 627                         if (diff < smallest_diff) {
 628                                 smallest_diff = diff;
 629                                 idx = i;
 630                         }
 631                 }
 632                 if (idx < 0) {
 633                         sr_dbg("Negative vdiv index: %d.", idx);
 634                         return SR_ERR_NA;
 635                 }
 636                 *data = g_variant_new("(tt)", vdivs[idx][0], vdivs[idx][1]);
 637                 break;
 638         case SR_CONF_COUPLING:
 639                 if (analog_channel < 0) {
 640                         sr_dbg("Negative analog channel: %d.", analog_channel);
 641                         return SR_ERR_NA;
 642                 }
 643                 *data = g_variant_new_string(devc->coupling[analog_channel]);
 644                 break;
 645         case SR_CONF_PROBE_FACTOR:
 646                 if (analog_channel < 0) {
 647                         sr_dbg("Negative analog channel: %d.", analog_channel);
 648                         return SR_ERR_NA;
 649                 }
 650                 *data = g_variant_new_uint64(devc->attenuation[analog_channel]);
 651                 break;
 652         default:
 653                 return SR_ERR_NA;
 654         }
 655
 656         return SR_OK;
 657 }
 658
 659 static int config_set(uint32_t key, GVariant *data,
 660         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 661 {
 662         struct dev_context *devc;
 663         uint64_t p;
 664         double t_dbl;
 665         int ret, idx, i;
 666         const char *tmp_str;
 667         char buffer[16];
 668
 669         devc = sdi->priv;
 670
 671         /* If a channel group is specified, it must be a valid one. */
 672         if (cg && !g_slist_find(sdi->channel_groups, cg)) {
 673                 sr_err("Invalid channel group specified.");
 674                 return SR_ERR;
 675         }
 676
 677         switch (key) {
 678         case SR_CONF_LIMIT_FRAMES:
 679                 devc->limit_frames = g_variant_get_uint64(data);
 680                 break;
 681         case SR_CONF_TRIGGER_SLOPE:
 682                 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(trigger_slopes))) < 0)
 683                         return SR_ERR_ARG;
 684                 g_free(devc->trigger_slope);
 685                 devc->trigger_slope = g_strdup((trigger_slopes[idx][0] == 'r') ? "POS" : "NEG");
 686                 return rigol_ds_config_set(sdi, ":TRIG:EDGE:SLOP %s", devc->trigger_slope);
 687         case SR_CONF_HORIZ_TRIGGERPOS:
 688                 t_dbl = g_variant_get_double(data);
 689                 if (t_dbl < 0.0 || t_dbl > 1.0) {
 690                         sr_err("Invalid horiz. trigger position: %g.", t_dbl);
 691                         return SR_ERR;
 692                 }
 693                 devc->horiz_triggerpos = t_dbl;
 694                 /* We have the trigger offset as a percentage of the frame, but
 695                  * need to express this in seconds. */
 696                 t_dbl = -(devc->horiz_triggerpos - 0.5) * devc->timebase * devc->num_timebases;
 697                 g_ascii_formatd(buffer, sizeof(buffer), "%.6f", t_dbl);
 698                 return rigol_ds_config_set(sdi,
 699                         devc->model->cmds[CMD_SET_HORIZ_TRIGGERPOS].str, buffer);
 700         case SR_CONF_TRIGGER_LEVEL:
 701                 t_dbl = g_variant_get_double(data);
 702                 g_ascii_formatd(buffer, sizeof(buffer), "%.3f", t_dbl);
 703                 ret = rigol_ds_config_set(sdi, ":TRIG:EDGE:LEV %s", buffer);
 704                 if (ret == SR_OK)
 705                         devc->trigger_level = t_dbl;
 706                 return ret;
 707         case SR_CONF_TIMEBASE:
 708                 if ((idx = std_u64_tuple_idx(data, devc->timebases, devc->num_timebases)) < 0)
 709                         return SR_ERR_ARG;
 710                 devc->timebase = (float)devc->timebases[idx][0] / devc->timebases[idx][1];
 711                 g_ascii_formatd(buffer, sizeof(buffer), "%.9f",
 712                                 devc->timebase);
 713                 return rigol_ds_config_set(sdi, ":TIM:SCAL %s", buffer);
 714         case SR_CONF_TRIGGER_SOURCE:
 715                 if ((idx = std_str_idx(data, devc->model->trigger_sources, devc->model->num_trigger_sources)) < 0)
 716                         return SR_ERR_ARG;
 717                 g_free(devc->trigger_source);
 718                 devc->trigger_source = g_strdup(devc->model->trigger_sources[idx]);
 719                 if (!strcmp(devc->trigger_source, "AC Line"))
 720                         tmp_str = "ACL";
 721                 else if (!strcmp(devc->trigger_source, "CH1"))
 722                         tmp_str = "CHAN1";
 723                 else if (!strcmp(devc->trigger_source, "CH2"))
 724                         tmp_str = "CHAN2";
 725                 else if (!strcmp(devc->trigger_source, "CH3"))
 726                         tmp_str = "CHAN3";
 727                 else if (!strcmp(devc->trigger_source, "CH4"))
 728                         tmp_str = "CHAN4";
 729                 else
 730                         tmp_str = (char *)devc->trigger_source;
 731                 return rigol_ds_config_set(sdi, ":TRIG:EDGE:SOUR %s", tmp_str);
 732         case SR_CONF_VDIV:
 733                 if (!cg)
 734                         return SR_ERR_CHANNEL_GROUP;
 735                 if ((i = std_cg_idx(cg, devc->analog_groups, devc->model->analog_channels)) < 0)
 736                         return SR_ERR_ARG;
 737                 if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(vdivs))) < 0)
 738                         return SR_ERR_ARG;
 739                 devc->vdiv[i] = (float)vdivs[idx][0] / vdivs[idx][1];
 740                 g_ascii_formatd(buffer, sizeof(buffer), "%.3f", devc->vdiv[i]);
 741                 return rigol_ds_config_set(sdi, ":CHAN%d:SCAL %s", i + 1, buffer);
 742         case SR_CONF_COUPLING:
 743                 if (!cg)
 744                         return SR_ERR_CHANNEL_GROUP;
 745                 if ((i = std_cg_idx(cg, devc->analog_groups, devc->model->analog_channels)) < 0)
 746                         return SR_ERR_ARG;
 747                 if ((idx = std_str_idx(data, ARRAY_AND_SIZE(coupling))) < 0)
 748                         return SR_ERR_ARG;
 749                 g_free(devc->coupling[i]);
 750                 devc->coupling[i] = g_strdup(coupling[idx]);
 751                 return rigol_ds_config_set(sdi, ":CHAN%d:COUP %s", i + 1, devc->coupling[i]);
 752         case SR_CONF_PROBE_FACTOR:
 753                 if (!cg)
 754                         return SR_ERR_CHANNEL_GROUP;
 755                 if ((i = std_cg_idx(cg, devc->analog_groups, devc->model->analog_channels)) < 0)
 756                         return SR_ERR_ARG;
 757                 if ((idx = std_u64_idx(data, ARRAY_AND_SIZE(probe_factor))) < 0)
 758                         return SR_ERR_ARG;
 759                 p = g_variant_get_uint64(data);
 760                 devc->attenuation[i] = probe_factor[idx];
 761                 ret = rigol_ds_config_set(sdi, ":CHAN%d:PROB %"PRIu64, i + 1, p);
 762                 if (ret == SR_OK)
 763                         rigol_ds_get_dev_cfg_vertical(sdi);
 764                 return ret;
 765         case SR_CONF_DATA_SOURCE:
 766                 tmp_str = g_variant_get_string(data, NULL);
 767                 if (!strcmp(tmp_str, "Live"))
 768                         devc->data_source = DATA_SOURCE_LIVE;
 769                 else if (devc->model->series->protocol >= PROTOCOL_V2
 770                         && !strcmp(tmp_str, "Memory"))
 771                         devc->data_source = DATA_SOURCE_MEMORY;
 772                 else if (devc->model->series->protocol >= PROTOCOL_V3
 773                          && !strcmp(tmp_str, "Segmented"))
 774                         devc->data_source = DATA_SOURCE_SEGMENTED;
 775                 else {
 776                         sr_err("Unknown data source: '%s'.", tmp_str);
 777                         return SR_ERR;
 778                 }
 779                 break;
 780         default:
 781                 return SR_ERR_NA;
 782         }
 783
 784         return SR_OK;
 785 }
 786
 787 static int config_list(uint32_t key, GVariant **data,
 788         const struct sr_dev_inst *sdi, const struct sr_channel_group *cg)
 789 {
 790         struct dev_context *devc;
 791
 792         devc = (sdi) ? sdi->priv : NULL;
 793
 794         switch (key) {
 795         case SR_CONF_SCAN_OPTIONS:
 796         case SR_CONF_DEVICE_OPTIONS:
 797                 if (!cg)
 798                         return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts);
 799                 if (!devc)
 800                         return SR_ERR_ARG;
 801                 if (cg == devc->digital_group) {
 802                         *data = std_gvar_array_u32(NULL, 0);
 803                         return SR_OK;
 804                 } else {
 805                         if (std_cg_idx(cg, devc->analog_groups, devc->model->analog_channels) < 0)
 806                                 return SR_ERR_ARG;
 807                         *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg_analog));
 808                         return SR_OK;
 809                 }
 810                 break;
 811         case SR_CONF_COUPLING:
 812                 if (!cg)
 813                         return SR_ERR_CHANNEL_GROUP;
 814                 *data = g_variant_new_strv(ARRAY_AND_SIZE(coupling));
 815                 break;
 816         case SR_CONF_PROBE_FACTOR:
 817                 if (!cg)
 818                         return SR_ERR_CHANNEL_GROUP;
 819                 *data = std_gvar_array_u64(ARRAY_AND_SIZE(probe_factor));
 820                 break;
 821         case SR_CONF_VDIV:
 822                 if (!devc)
 823                         /* Can't know this until we have the exact model. */
 824                         return SR_ERR_ARG;
 825                 if (!cg)
 826                         return SR_ERR_CHANNEL_GROUP;
 827                 *data = std_gvar_tuple_array(devc->vdivs, devc->num_vdivs);
 828                 break;
 829         case SR_CONF_TIMEBASE:
 830                 if (!devc)
 831                         /* Can't know this until we have the exact model. */
 832                         return SR_ERR_ARG;
 833                 if (devc->num_timebases <= 0)
 834                         return SR_ERR_NA;
 835                 *data = std_gvar_tuple_array(devc->timebases, devc->num_timebases);
 836                 break;
 837         case SR_CONF_TRIGGER_SOURCE:
 838                 if (!devc)
 839                         /* Can't know this until we have the exact model. */
 840                         return SR_ERR_ARG;
 841                 *data = g_variant_new_strv(devc->model->trigger_sources, devc->model->num_trigger_sources);
 842                 break;
 843         case SR_CONF_TRIGGER_SLOPE:
 844                 *data = g_variant_new_strv(ARRAY_AND_SIZE(trigger_slopes));
 845                 break;
 846         case SR_CONF_DATA_SOURCE:
 847                 if (!devc)
 848                         /* Can't know this until we have the exact model. */
 849                         return SR_ERR_ARG;
 850                 switch (devc->model->series->protocol) {
 851                 case PROTOCOL_V1:
 852                         *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources) - 2);
 853                         break;
 854                 case PROTOCOL_V2:
 855                         *data = g_variant_new_strv(data_sources, ARRAY_SIZE(data_sources) - 1);
 856                         break;
 857                 default:
 858                         *data = g_variant_new_strv(ARRAY_AND_SIZE(data_sources));
 859                         break;
 860                 }
 861                 break;
 862         default:
 863                 return SR_ERR_NA;
 864         }
 865
 866         return SR_OK;
 867 }
 868
 869 static int dev_acquisition_start(const struct sr_dev_inst *sdi)
 870 {
 871         struct sr_scpi_dev_inst *scpi;
 872         struct dev_context *devc;
 873         struct sr_channel *ch;
 874         gboolean some_digital;
 875         GSList *l;
 876         char *cmd;
 877
 878         scpi = sdi->conn;
 879         devc = sdi->priv;
 880
 881         devc->num_frames = 0;
 882
 883         some_digital = FALSE;
 884         for (l = sdi->channels; l; l = l->next) {
 885                 ch = l->data;
 886                 sr_dbg("handling channel %s", ch->name);
 887                 if (ch->type == SR_CHANNEL_ANALOG) {
 888                         if (ch->enabled)
 889                                 devc->enabled_channels = g_slist_append(
 890                                                 devc->enabled_channels, ch);
 891                         if (ch->enabled != devc->analog_channels[ch->index]) {
 892                                 /* Enabled channel is currently disabled, or vice versa. */
 893                                 if (rigol_ds_config_set(sdi, ":CHAN%d:DISP %s", ch->index + 1,
 894                                                 ch->enabled ? "ON" : "OFF") != SR_OK)
 895                                         return SR_ERR;
 896                                 devc->analog_channels[ch->index] = ch->enabled;
 897                         }
 898                 } else if (ch->type == SR_CHANNEL_LOGIC) {
 899                         /* Only one list entry for older protocols. All channels are
 900                          * retrieved together when this entry is processed. */
 901                         if (ch->enabled && (
 902                                                 devc->model->series->protocol > PROTOCOL_V3 ||
 903                                                 !some_digital))
 904                                 devc->enabled_channels = g_slist_append(
 905                                                 devc->enabled_channels, ch);
 906                         if (ch->enabled) {
 907                                 some_digital = TRUE;
 908                                 /* Turn on LA module if currently off. */
 909                                 if (!devc->la_enabled) {
 910                                         if (rigol_ds_config_set(sdi,
 911                                                         devc->model->series->protocol >= PROTOCOL_V3 ?
 912                                                                 ":LA:STAT ON" : ":LA:DISP ON") != SR_OK)
 913                                                 return SR_ERR;
 914                                         devc->la_enabled = TRUE;
 915                                 }
 916                         }
 917                         if (ch->enabled != devc->digital_channels[ch->index]) {
 918                                 /* Enabled channel is currently disabled, or vice versa. */
 919                                 if (devc->model->series->protocol >= PROTOCOL_V5)
 920                                         cmd = ":LA:DISP D%d,%s";
 921                                 else if (devc->model->series->protocol >= PROTOCOL_V3)
 922                                         cmd = ":LA:DIG%d:DISP %s";
 923                                 else
 924                                         cmd = ":DIG%d:TURN %s";
 925
 926                                 if (rigol_ds_config_set(sdi, cmd, ch->index,
 927                                                 ch->enabled ? "ON" : "OFF") != SR_OK)
 928                                         return SR_ERR;
 929                                 devc->digital_channels[ch->index] = ch->enabled;
 930                         }
 931                 }
 932         }
 933
 934         if (!devc->enabled_channels)
 935                 return SR_ERR;
 936
 937         /* Turn off LA module if on and no digital channels selected. */
 938         if (devc->la_enabled && !some_digital)
 939                 if (rigol_ds_config_set(sdi,
 940                                 devc->model->series->protocol >= PROTOCOL_V3 ?
 941                                         ":LA:STAT OFF" : ":LA:DISP OFF") != SR_OK)
 942                         return SR_ERR;
 943
 944         /* Set memory mode. */
 945         if (devc->data_source == DATA_SOURCE_SEGMENTED) {
 946                 sr_err("Data source 'Segmented' not yet supported");
 947                 return SR_ERR;
 948         }
 949
 950         devc->analog_frame_size = analog_frame_size(sdi);
 951         devc->digital_frame_size = digital_frame_size(sdi);
 952
 953         switch (devc->model->series->protocol) {
 954         case PROTOCOL_V2:
 955                 if (rigol_ds_config_set(sdi, ":ACQ:MEMD LONG") != SR_OK)
 956                         return SR_ERR;
 957                 break;
 958         case PROTOCOL_V3:
 959                 /* Apparently for the DS2000 the memory
 960                  * depth can only be set in Running state -
 961                  * this matches the behaviour of the UI. */
 962                 if (rigol_ds_config_set(sdi, ":RUN") != SR_OK)
 963                         return SR_ERR;
 964                 if (rigol_ds_config_set(sdi, ":ACQ:MDEP %d",
 965                                         devc->analog_frame_size) != SR_OK)
 966                         return SR_ERR;
 967                 if (rigol_ds_config_set(sdi, ":STOP") != SR_OK)
 968                         return SR_ERR;
 969                 break;
 970         default:
 971                 break;
 972         }
 973
 974         if (devc->data_source == DATA_SOURCE_LIVE)
 975                 if (rigol_ds_config_set(sdi, ":RUN") != SR_OK)
 976                         return SR_ERR;
 977
 978         sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 50,
 979                         rigol_ds_receive, (void *)sdi);
 980
 981         std_session_send_df_header(sdi);
 982
 983         devc->channel_entry = devc->enabled_channels;
 984
 985         if (devc->data_source == DATA_SOURCE_LIVE)
 986                 devc->sample_rate = analog_frame_size(sdi) /
 987                         (devc->timebase * devc->model->series->num_horizontal_divs);
 988         else {
 989                 float xinc;
 990                 if (devc->model->series->protocol >= PROTOCOL_V3 &&
 991                                 sr_scpi_get_float(sdi->conn, "WAV:XINC?", &xinc) != SR_OK) {
 992                         sr_err("Couldn't get sampling rate");
 993                         return SR_ERR;
 994                 }
 995                 devc->sample_rate = 1. / xinc;
 996         }
 997
 998
 999         if (rigol_ds_capture_start(sdi) != SR_OK)
1000                 return SR_ERR;
1001
1002         /* Start of first frame. */
1003         std_session_send_df_frame_begin(sdi);
1004
1005         return SR_OK;
1006 }
1007
1008 static int dev_acquisition_stop(struct sr_dev_inst *sdi)
1009 {
1010         struct dev_context *devc;
1011         struct sr_scpi_dev_inst *scpi;
1012
1013         devc = sdi->priv;
1014
1015         std_session_send_df_end(sdi);
1016
1017         g_slist_free(devc->enabled_channels);
1018         devc->enabled_channels = NULL;
1019         scpi = sdi->conn;
1020         sr_scpi_source_remove(sdi->session, scpi);
1021
1022         return SR_OK;
1023 }
1024
1025 static struct sr_dev_driver rigol_ds_driver_info = {
1026         .name = "rigol-ds",
1027         .longname = "Rigol DS",
1028         .api_version = 1,
1029         .init = std_init,
1030         .cleanup = std_cleanup,
1031         .scan = scan,
1032         .dev_list = std_dev_list,
1033         .dev_clear = dev_clear,
1034         .config_get = config_get,
1035         .config_set = config_set,
1036         .config_list = config_list,
1037         .dev_open = dev_open,
1038         .dev_close = dev_close,
1039         .dev_acquisition_start = dev_acquisition_start,
1040         .dev_acquisition_stop = dev_acquisition_stop,
1041         .context = NULL,
1042 };
1043 SR_REGISTER_DEV_DRIVER(rigol_ds_driver_info);