| | 1 | /* |
| | 2 | * This file is part of the libsigrok project. |
| | 3 | * |
| | 4 | * Copyright (C) 2013 poljar (Damir Jelić) <poljarinho@gmail.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 <config.h> |
| | 21 | #include <stdlib.h> |
| | 22 | #include "scpi.h" |
| | 23 | #include "protocol.h" |
| | 24 | |
| | 25 | #define SERIALCOMM "115200/8n1/flow=1" |
| | 26 | |
| | 27 | static struct sr_dev_driver hameg_hmo_driver_info; |
| | 28 | |
| | 29 | static const char *manufacturers[] = { |
| | 30 | "HAMEG", |
| | 31 | "Rohde&Schwarz", |
| | 32 | }; |
| | 33 | |
| | 34 | static const uint32_t drvopts[] = { |
| | 35 | SR_CONF_OSCILLOSCOPE, |
| | 36 | }; |
| | 37 | |
| | 38 | static const uint32_t scanopts[] = { |
| | 39 | SR_CONF_CONN, |
| | 40 | SR_CONF_SERIALCOMM, |
| | 41 | }; |
| | 42 | |
| | 43 | enum { |
| | 44 | CG_INVALID = -1, |
| | 45 | CG_NONE, |
| | 46 | CG_ANALOG, |
| | 47 | CG_DIGITAL, |
| | 48 | }; |
| | 49 | |
| | 50 | static int check_manufacturer(const char *manufacturer) |
| | 51 | { |
| | 52 | unsigned int i; |
| | 53 | |
| | 54 | for (i = 0; i < ARRAY_SIZE(manufacturers); i++) |
| | 55 | if (!strcmp(manufacturer, manufacturers[i])) |
| | 56 | return SR_OK; |
| | 57 | |
| | 58 | return SR_ERR; |
| | 59 | } |
| | 60 | |
| | 61 | static struct sr_dev_inst *hmo_probe_serial_device(struct sr_scpi_dev_inst *scpi) |
| | 62 | { |
| | 63 | struct sr_dev_inst *sdi; |
| | 64 | struct dev_context *devc; |
| | 65 | struct sr_scpi_hw_info *hw_info; |
| | 66 | |
| | 67 | sdi = NULL; |
| | 68 | devc = NULL; |
| | 69 | hw_info = NULL; |
| | 70 | |
| | 71 | if (sr_scpi_get_hw_id(scpi, &hw_info) != SR_OK) { |
| | 72 | sr_info("Couldn't get IDN response."); |
| | 73 | goto fail; |
| | 74 | } |
| | 75 | |
| | 76 | if (check_manufacturer(hw_info->manufacturer) != SR_OK) |
| | 77 | goto fail; |
| | 78 | |
| | 79 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
| | 80 | sdi->vendor = g_strdup(hw_info->manufacturer); |
| | 81 | sdi->model = g_strdup(hw_info->model); |
| | 82 | sdi->version = g_strdup(hw_info->firmware_version); |
| | 83 | sdi->serial_num = g_strdup(hw_info->serial_number); |
| | 84 | sdi->driver = &hameg_hmo_driver_info; |
| | 85 | sdi->inst_type = SR_INST_SCPI; |
| | 86 | sdi->conn = scpi; |
| | 87 | |
| | 88 | sr_scpi_hw_info_free(hw_info); |
| | 89 | hw_info = NULL; |
| | 90 | |
| | 91 | devc = g_malloc0(sizeof(struct dev_context)); |
| | 92 | |
| | 93 | sdi->priv = devc; |
| | 94 | |
| | 95 | if (hmo_init_device(sdi) != SR_OK) |
| | 96 | goto fail; |
| | 97 | |
| | 98 | return sdi; |
| | 99 | |
| | 100 | fail: |
| | 101 | sr_scpi_hw_info_free(hw_info); |
| | 102 | sr_dev_inst_free(sdi); |
| | 103 | g_free(devc); |
| | 104 | |
| | 105 | return NULL; |
| | 106 | } |
| | 107 | |
| | 108 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
| | 109 | { |
| | 110 | return sr_scpi_scan(di->context, options, hmo_probe_serial_device); |
| | 111 | } |
| | 112 | |
| | 113 | static void clear_helper(void *priv) |
| | 114 | { |
| | 115 | struct dev_context *devc; |
| | 116 | |
| | 117 | devc = priv; |
| | 118 | |
| | 119 | hmo_scope_state_free(devc->model_state); |
| | 120 | |
| | 121 | g_free(devc->analog_groups); |
| | 122 | g_free(devc->digital_groups); |
| | 123 | } |
| | 124 | |
| | 125 | static int dev_clear(const struct sr_dev_driver *di) |
| | 126 | { |
| | 127 | return std_dev_clear_with_callback(di, clear_helper); |
| | 128 | } |
| | 129 | |
| | 130 | static int dev_open(struct sr_dev_inst *sdi) |
| | 131 | { |
| | 132 | if (sr_scpi_open(sdi->conn) != SR_OK) |
| | 133 | return SR_ERR; |
| | 134 | |
| | 135 | if (hmo_scope_state_get(sdi) != SR_OK) |
| | 136 | return SR_ERR; |
| | 137 | |
| | 138 | return SR_OK; |
| | 139 | } |
| | 140 | |
| | 141 | static int dev_close(struct sr_dev_inst *sdi) |
| | 142 | { |
| | 143 | return sr_scpi_close(sdi->conn); |
| | 144 | } |
| | 145 | |
| | 146 | static int check_channel_group(struct dev_context *devc, |
| | 147 | const struct sr_channel_group *cg) |
| | 148 | { |
| | 149 | unsigned int i; |
| | 150 | const struct scope_config *model; |
| | 151 | |
| | 152 | model = devc->model_config; |
| | 153 | |
| | 154 | if (!cg) |
| | 155 | return CG_NONE; |
| | 156 | |
| | 157 | for (i = 0; i < model->analog_channels; i++) |
| | 158 | if (cg == devc->analog_groups[i]) |
| | 159 | return CG_ANALOG; |
| | 160 | |
| | 161 | for (i = 0; i < model->digital_pods; i++) |
| | 162 | if (cg == devc->digital_groups[i]) |
| | 163 | return CG_DIGITAL; |
| | 164 | |
| | 165 | sr_err("Invalid channel group specified."); |
| | 166 | |
| | 167 | return CG_INVALID; |
| | 168 | } |
| | 169 | |
| | 170 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
| | 171 | const struct sr_channel_group *cg) |
| | 172 | { |
| | 173 | int ret, cg_type; |
| | 174 | unsigned int i; |
| | 175 | struct dev_context *devc; |
| | 176 | const struct scope_config *model; |
| | 177 | struct scope_state *state; |
| | 178 | |
| | 179 | if (!sdi) |
| | 180 | return SR_ERR_ARG; |
| | 181 | |
| | 182 | devc = sdi->priv; |
| | 183 | |
| | 184 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) |
| | 185 | return SR_ERR; |
| | 186 | |
| | 187 | ret = SR_ERR_NA; |
| | 188 | model = devc->model_config; |
| | 189 | state = devc->model_state; |
| | 190 | |
| | 191 | switch (key) { |
| | 192 | case SR_CONF_NUM_HDIV: |
| | 193 | *data = g_variant_new_int32(model->num_xdivs); |
| | 194 | ret = SR_OK; |
| | 195 | break; |
| | 196 | case SR_CONF_TIMEBASE: |
| | 197 | *data = g_variant_new("(tt)", (*model->timebases)[state->timebase][0], |
| | 198 | (*model->timebases)[state->timebase][1]); |
| | 199 | ret = SR_OK; |
| | 200 | break; |
| | 201 | case SR_CONF_NUM_VDIV: |
| | 202 | if (cg_type == CG_NONE) { |
| | 203 | sr_err("No channel group specified."); |
| | 204 | return SR_ERR_CHANNEL_GROUP; |
| | 205 | } else if (cg_type == CG_ANALOG) { |
| | 206 | for (i = 0; i < model->analog_channels; i++) { |
| | 207 | if (cg != devc->analog_groups[i]) |
| | 208 | continue; |
| | 209 | *data = g_variant_new_int32(model->num_ydivs); |
| | 210 | ret = SR_OK; |
| | 211 | break; |
| | 212 | } |
| | 213 | |
| | 214 | } else { |
| | 215 | ret = SR_ERR_NA; |
| | 216 | } |
| | 217 | break; |
| | 218 | case SR_CONF_VDIV: |
| | 219 | if (cg_type == CG_NONE) { |
| | 220 | sr_err("No channel group specified."); |
| | 221 | return SR_ERR_CHANNEL_GROUP; |
| | 222 | } else if (cg_type == CG_ANALOG) { |
| | 223 | for (i = 0; i < model->analog_channels; i++) { |
| | 224 | if (cg != devc->analog_groups[i]) |
| | 225 | continue; |
| | 226 | *data = g_variant_new("(tt)", |
| | 227 | (*model->vdivs)[state->analog_channels[i].vdiv][0], |
| | 228 | (*model->vdivs)[state->analog_channels[i].vdiv][1]); |
| | 229 | ret = SR_OK; |
| | 230 | break; |
| | 231 | } |
| | 232 | |
| | 233 | } else { |
| | 234 | ret = SR_ERR_NA; |
| | 235 | } |
| | 236 | break; |
| | 237 | case SR_CONF_TRIGGER_SOURCE: |
| | 238 | *data = g_variant_new_string((*model->trigger_sources)[state->trigger_source]); |
| | 239 | ret = SR_OK; |
| | 240 | break; |
| | 241 | case SR_CONF_TRIGGER_SLOPE: |
| | 242 | *data = g_variant_new_string((*model->trigger_slopes)[state->trigger_slope]); |
| | 243 | ret = SR_OK; |
| | 244 | break; |
| | 245 | case SR_CONF_HORIZ_TRIGGERPOS: |
| | 246 | *data = g_variant_new_double(state->horiz_triggerpos); |
| | 247 | ret = SR_OK; |
| | 248 | break; |
| | 249 | case SR_CONF_COUPLING: |
| | 250 | if (cg_type == CG_NONE) { |
| | 251 | sr_err("No channel group specified."); |
| | 252 | return SR_ERR_CHANNEL_GROUP; |
| | 253 | } else if (cg_type == CG_ANALOG) { |
| | 254 | for (i = 0; i < model->analog_channels; i++) { |
| | 255 | if (cg != devc->analog_groups[i]) |
| | 256 | continue; |
| | 257 | *data = g_variant_new_string((*model->coupling_options)[state->analog_channels[i].coupling]); |
| | 258 | ret = SR_OK; |
| | 259 | break; |
| | 260 | } |
| | 261 | |
| | 262 | } else { |
| | 263 | ret = SR_ERR_NA; |
| | 264 | } |
| | 265 | break; |
| | 266 | case SR_CONF_SAMPLERATE: |
| | 267 | *data = g_variant_new_uint64(state->sample_rate); |
| | 268 | ret = SR_OK; |
| | 269 | break; |
| | 270 | default: |
| | 271 | ret = SR_ERR_NA; |
| | 272 | } |
| | 273 | |
| | 274 | return ret; |
| | 275 | } |
| | 276 | |
| | 277 | static GVariant *build_tuples(const uint64_t (*array)[][2], unsigned int n) |
| | 278 | { |
| | 279 | unsigned int i; |
| | 280 | GVariant *rational[2]; |
| | 281 | GVariantBuilder gvb; |
| | 282 | |
| | 283 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); |
| | 284 | |
| | 285 | for (i = 0; i < n; i++) { |
| | 286 | rational[0] = g_variant_new_uint64((*array)[i][0]); |
| | 287 | rational[1] = g_variant_new_uint64((*array)[i][1]); |
| | 288 | |
| | 289 | /* FIXME: Valgrind reports a memory leak here. */ |
| | 290 | g_variant_builder_add_value(&gvb, g_variant_new_tuple(rational, 2)); |
| | 291 | } |
| | 292 | |
| | 293 | return g_variant_builder_end(&gvb); |
| | 294 | } |
| | 295 | |
| | 296 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, |
| | 297 | const struct sr_channel_group *cg) |
| | 298 | { |
| | 299 | int ret, cg_type; |
| | 300 | unsigned int i, j; |
| | 301 | char command[MAX_COMMAND_SIZE], float_str[30]; |
| | 302 | struct dev_context *devc; |
| | 303 | const struct scope_config *model; |
| | 304 | struct scope_state *state; |
| | 305 | const char *tmp; |
| | 306 | uint64_t p, q; |
| | 307 | double tmp_d; |
| | 308 | gboolean update_sample_rate; |
| | 309 | |
| | 310 | if (!sdi) |
| | 311 | return SR_ERR_ARG; |
| | 312 | |
| | 313 | devc = sdi->priv; |
| | 314 | |
| | 315 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) |
| | 316 | return SR_ERR; |
| | 317 | |
| | 318 | model = devc->model_config; |
| | 319 | state = devc->model_state; |
| | 320 | update_sample_rate = FALSE; |
| | 321 | |
| | 322 | ret = SR_ERR_NA; |
| | 323 | |
| | 324 | switch (key) { |
| | 325 | case SR_CONF_LIMIT_FRAMES: |
| | 326 | devc->frame_limit = g_variant_get_uint64(data); |
| | 327 | ret = SR_OK; |
| | 328 | break; |
| | 329 | case SR_CONF_TRIGGER_SOURCE: |
| | 330 | tmp = g_variant_get_string(data, NULL); |
| | 331 | for (i = 0; (*model->trigger_sources)[i]; i++) { |
| | 332 | if (g_strcmp0(tmp, (*model->trigger_sources)[i]) != 0) |
| | 333 | continue; |
| | 334 | state->trigger_source = i; |
| | 335 | g_snprintf(command, sizeof(command), |
| | 336 | (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SOURCE], |
| | 337 | (*model->trigger_sources)[i]); |
| | 338 | |
| | 339 | ret = sr_scpi_send(sdi->conn, command); |
| | 340 | break; |
| | 341 | } |
| | 342 | break; |
| | 343 | case SR_CONF_VDIV: |
| | 344 | if (cg_type == CG_NONE) { |
| | 345 | sr_err("No channel group specified."); |
| | 346 | return SR_ERR_CHANNEL_GROUP; |
| | 347 | } |
| | 348 | |
| | 349 | g_variant_get(data, "(tt)", &p, &q); |
| | 350 | |
| | 351 | for (i = 0; i < model->num_vdivs; i++) { |
| | 352 | if (p != (*model->vdivs)[i][0] || |
| | 353 | q != (*model->vdivs)[i][1]) |
| | 354 | continue; |
| | 355 | for (j = 1; j <= model->analog_channels; j++) { |
| | 356 | if (cg != devc->analog_groups[j - 1]) |
| | 357 | continue; |
| | 358 | state->analog_channels[j - 1].vdiv = i; |
| | 359 | g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) p / q); |
| | 360 | g_snprintf(command, sizeof(command), |
| | 361 | (*model->scpi_dialect)[SCPI_CMD_SET_VERTICAL_DIV], |
| | 362 | j, float_str); |
| | 363 | |
| | 364 | if (sr_scpi_send(sdi->conn, command) != SR_OK || |
| | 365 | sr_scpi_get_opc(sdi->conn) != SR_OK) |
| | 366 | return SR_ERR; |
| | 367 | |
| | 368 | break; |
| | 369 | } |
| | 370 | |
| | 371 | ret = SR_OK; |
| | 372 | break; |
| | 373 | } |
| | 374 | break; |
| | 375 | case SR_CONF_TIMEBASE: |
| | 376 | g_variant_get(data, "(tt)", &p, &q); |
| | 377 | |
| | 378 | for (i = 0; i < model->num_timebases; i++) { |
| | 379 | if (p != (*model->timebases)[i][0] || |
| | 380 | q != (*model->timebases)[i][1]) |
| | 381 | continue; |
| | 382 | state->timebase = i; |
| | 383 | g_ascii_formatd(float_str, sizeof(float_str), "%E", (float) p / q); |
| | 384 | g_snprintf(command, sizeof(command), |
| | 385 | (*model->scpi_dialect)[SCPI_CMD_SET_TIMEBASE], |
| | 386 | float_str); |
| | 387 | |
| | 388 | ret = sr_scpi_send(sdi->conn, command); |
| | 389 | update_sample_rate = TRUE; |
| | 390 | break; |
| | 391 | } |
| | 392 | break; |
| | 393 | case SR_CONF_HORIZ_TRIGGERPOS: |
| | 394 | tmp_d = g_variant_get_double(data); |
| | 395 | |
| | 396 | if (tmp_d < 0.0 || tmp_d > 1.0) |
| | 397 | return SR_ERR; |
| | 398 | |
| | 399 | state->horiz_triggerpos = tmp_d; |
| | 400 | tmp_d = -(tmp_d - 0.5) * |
| | 401 | ((double) (*model->timebases)[state->timebase][0] / |
| | 402 | (*model->timebases)[state->timebase][1]) |
| | 403 | * model->num_xdivs; |
| | 404 | |
| | 405 | g_ascii_formatd(float_str, sizeof(float_str), "%E", tmp_d); |
| | 406 | g_snprintf(command, sizeof(command), |
| | 407 | (*model->scpi_dialect)[SCPI_CMD_SET_HORIZ_TRIGGERPOS], |
| | 408 | float_str); |
| | 409 | |
| | 410 | ret = sr_scpi_send(sdi->conn, command); |
| | 411 | break; |
| | 412 | case SR_CONF_TRIGGER_SLOPE: |
| | 413 | tmp = g_variant_get_string(data, NULL); |
| | 414 | for (i = 0; (*model->trigger_slopes)[i]; i++) { |
| | 415 | if (g_strcmp0(tmp, (*model->trigger_slopes)[i]) != 0) |
| | 416 | continue; |
| | 417 | state->trigger_slope = i; |
| | 418 | g_snprintf(command, sizeof(command), |
| | 419 | (*model->scpi_dialect)[SCPI_CMD_SET_TRIGGER_SLOPE], |
| | 420 | (*model->trigger_slopes)[i]); |
| | 421 | |
| | 422 | ret = sr_scpi_send(sdi->conn, command); |
| | 423 | break; |
| | 424 | } |
| | 425 | break; |
| | 426 | case SR_CONF_COUPLING: |
| | 427 | if (cg_type == CG_NONE) { |
| | 428 | sr_err("No channel group specified."); |
| | 429 | return SR_ERR_CHANNEL_GROUP; |
| | 430 | } |
| | 431 | |
| | 432 | tmp = g_variant_get_string(data, NULL); |
| | 433 | |
| | 434 | for (i = 0; (*model->coupling_options)[i]; i++) { |
| | 435 | if (strcmp(tmp, (*model->coupling_options)[i]) != 0) |
| | 436 | continue; |
| | 437 | for (j = 1; j <= model->analog_channels; j++) { |
| | 438 | if (cg != devc->analog_groups[j - 1]) |
| | 439 | continue; |
| | 440 | state->analog_channels[j-1].coupling = i; |
| | 441 | |
| | 442 | g_snprintf(command, sizeof(command), |
| | 443 | (*model->scpi_dialect)[SCPI_CMD_SET_COUPLING], |
| | 444 | j, tmp); |
| | 445 | |
| | 446 | if (sr_scpi_send(sdi->conn, command) != SR_OK || |
| | 447 | sr_scpi_get_opc(sdi->conn) != SR_OK) |
| | 448 | return SR_ERR; |
| | 449 | break; |
| | 450 | } |
| | 451 | |
| | 452 | ret = SR_OK; |
| | 453 | break; |
| | 454 | } |
| | 455 | break; |
| | 456 | default: |
| | 457 | ret = SR_ERR_NA; |
| | 458 | break; |
| | 459 | } |
| | 460 | |
| | 461 | if (ret == SR_OK) |
| | 462 | ret = sr_scpi_get_opc(sdi->conn); |
| | 463 | |
| | 464 | if (ret == SR_OK && update_sample_rate) |
| | 465 | ret = hmo_update_sample_rate(sdi); |
| | 466 | |
| | 467 | return ret; |
| | 468 | } |
| | 469 | |
| | 470 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, |
| | 471 | const struct sr_channel_group *cg) |
| | 472 | { |
| | 473 | int cg_type = CG_NONE; |
| | 474 | struct dev_context *devc = NULL; |
| | 475 | const struct scope_config *model = NULL; |
| | 476 | |
| | 477 | if (sdi) { |
| | 478 | devc = sdi->priv; |
| | 479 | if ((cg_type = check_channel_group(devc, cg)) == CG_INVALID) |
| | 480 | return SR_ERR; |
| | 481 | |
| | 482 | model = devc->model_config; |
| | 483 | } |
| | 484 | |
| | 485 | switch (key) { |
| | 486 | case SR_CONF_SCAN_OPTIONS: |
| | 487 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
| | 488 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); |
| | 489 | break; |
| | 490 | case SR_CONF_DEVICE_OPTIONS: |
| | 491 | if (cg_type == CG_NONE) { |
| | 492 | if (model) |
| | 493 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
| | 494 | model->devopts, model->num_devopts, sizeof(uint32_t)); |
| | 495 | else |
| | 496 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
| | 497 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); |
| | 498 | } else if (cg_type == CG_ANALOG) { |
| | 499 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
| | 500 | model->analog_devopts, model->num_analog_devopts, |
| | 501 | sizeof(uint32_t)); |
| | 502 | } else { |
| | 503 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, |
| | 504 | NULL, 0, sizeof(uint32_t)); |
| | 505 | } |
| | 506 | break; |
| | 507 | case SR_CONF_COUPLING: |
| | 508 | if (cg_type == CG_NONE) |
| | 509 | return SR_ERR_CHANNEL_GROUP; |
| | 510 | *data = g_variant_new_strv(*model->coupling_options, |
| | 511 | g_strv_length((char **)*model->coupling_options)); |
| | 512 | break; |
| | 513 | case SR_CONF_TRIGGER_SOURCE: |
| | 514 | if (!model) |
| | 515 | return SR_ERR_ARG; |
| | 516 | *data = g_variant_new_strv(*model->trigger_sources, |
| | 517 | g_strv_length((char **)*model->trigger_sources)); |
| | 518 | break; |
| | 519 | case SR_CONF_TRIGGER_SLOPE: |
| | 520 | if (!model) |
| | 521 | return SR_ERR_ARG; |
| | 522 | *data = g_variant_new_strv(*model->trigger_slopes, |
| | 523 | g_strv_length((char **)*model->trigger_slopes)); |
| | 524 | break; |
| | 525 | case SR_CONF_TIMEBASE: |
| | 526 | if (!model) |
| | 527 | return SR_ERR_ARG; |
| | 528 | *data = build_tuples(model->timebases, model->num_timebases); |
| | 529 | break; |
| | 530 | case SR_CONF_VDIV: |
| | 531 | if (cg_type == CG_NONE) |
| | 532 | return SR_ERR_CHANNEL_GROUP; |
| | 533 | *data = build_tuples(model->vdivs, model->num_vdivs); |
| | 534 | break; |
| | 535 | default: |
| | 536 | return SR_ERR_NA; |
| | 537 | } |
| | 538 | |
| | 539 | return SR_OK; |
| | 540 | } |
| | 541 | |
| | 542 | SR_PRIV int hmo_request_data(const struct sr_dev_inst *sdi) |
| | 543 | { |
| | 544 | char command[MAX_COMMAND_SIZE]; |
| | 545 | struct sr_channel *ch; |
| | 546 | struct dev_context *devc; |
| | 547 | const struct scope_config *model; |
| | 548 | |
| | 549 | devc = sdi->priv; |
| | 550 | model = devc->model_config; |
| | 551 | |
| | 552 | ch = devc->current_channel->data; |
| | 553 | |
| | 554 | switch (ch->type) { |
| | 555 | case SR_CHANNEL_ANALOG: |
| | 556 | g_snprintf(command, sizeof(command), |
| | 557 | (*model->scpi_dialect)[SCPI_CMD_GET_ANALOG_DATA], |
| | 558 | #ifdef WORDS_BIGENDIAN |
| | 559 | "MSBF", |
| | 560 | #else |
| | 561 | "LSBF", |
| | 562 | #endif |
| | 563 | ch->index + 1); |
| | 564 | break; |
| | 565 | case SR_CHANNEL_LOGIC: |
| | 566 | g_snprintf(command, sizeof(command), |
| | 567 | (*model->scpi_dialect)[SCPI_CMD_GET_DIG_DATA], |
| | 568 | ch->index < 8 ? 1 : 2); |
| | 569 | break; |
| | 570 | default: |
| | 571 | sr_err("Invalid channel type."); |
| | 572 | break; |
| | 573 | } |
| | 574 | |
| | 575 | return sr_scpi_send(sdi->conn, command); |
| | 576 | } |
| | 577 | |
| | 578 | static int hmo_check_channels(GSList *channels) |
| | 579 | { |
| | 580 | GSList *l; |
| | 581 | struct sr_channel *ch; |
| | 582 | gboolean enabled_chan[MAX_ANALOG_CHANNEL_COUNT]; |
| | 583 | gboolean enabled_pod[MAX_DIGITAL_GROUP_COUNT]; |
| | 584 | size_t idx; |
| | 585 | |
| | 586 | /* Preset "not enabled" for all channels / pods. */ |
| | 587 | for (idx = 0; idx < ARRAY_SIZE(enabled_chan); idx++) |
| | 588 | enabled_chan[idx] = FALSE; |
| | 589 | for (idx = 0; idx < ARRAY_SIZE(enabled_pod); idx++) |
| | 590 | enabled_pod[idx] = FALSE; |
| | 591 | |
| | 592 | /* |
| | 593 | * Determine which channels / pods are required for the caller's |
| | 594 | * specified configuration. |
| | 595 | */ |
| | 596 | for (l = channels; l; l = l->next) { |
| | 597 | ch = l->data; |
| | 598 | switch (ch->type) { |
| | 599 | case SR_CHANNEL_ANALOG: |
| | 600 | idx = ch->index; |
| | 601 | if (idx < ARRAY_SIZE(enabled_chan)) |
| | 602 | enabled_chan[idx] = TRUE; |
| | 603 | break; |
| | 604 | case SR_CHANNEL_LOGIC: |
| | 605 | idx = ch->index / 8; |
| | 606 | if (idx < ARRAY_SIZE(enabled_pod)) |
| | 607 | enabled_pod[idx] = TRUE; |
| | 608 | break; |
| | 609 | default: |
| | 610 | return SR_ERR; |
| | 611 | } |
| | 612 | } |
| | 613 | |
| | 614 | /* |
| | 615 | * Check for resource conflicts. Some channels can be either |
| | 616 | * analog or digital, but never both at the same time. |
| | 617 | * |
| | 618 | * Note that the constraints might depend on the specific model. |
| | 619 | * These tests might need some adjustment when support for more |
| | 620 | * models gets added to the driver. |
| | 621 | */ |
| | 622 | if (enabled_pod[0] && enabled_chan[2]) |
| | 623 | return SR_ERR; |
| | 624 | if (enabled_pod[1] && enabled_chan[3]) |
| | 625 | return SR_ERR; |
| | 626 | return SR_OK; |
| | 627 | } |
| | 628 | |
| | 629 | static int hmo_setup_channels(const struct sr_dev_inst *sdi) |
| | 630 | { |
| | 631 | GSList *l; |
| | 632 | unsigned int i; |
| | 633 | gboolean *pod_enabled, setup_changed; |
| | 634 | char command[MAX_COMMAND_SIZE]; |
| | 635 | struct scope_state *state; |
| | 636 | const struct scope_config *model; |
| | 637 | struct sr_channel *ch; |
| | 638 | struct dev_context *devc; |
| | 639 | struct sr_scpi_dev_inst *scpi; |
| | 640 | |
| | 641 | devc = sdi->priv; |
| | 642 | scpi = sdi->conn; |
| | 643 | state = devc->model_state; |
| | 644 | model = devc->model_config; |
| | 645 | setup_changed = FALSE; |
| | 646 | |
| | 647 | pod_enabled = g_try_malloc0(sizeof(gboolean) * model->digital_pods); |
| | 648 | |
| | 649 | for (l = sdi->channels; l; l = l->next) { |
| | 650 | ch = l->data; |
| | 651 | switch (ch->type) { |
| | 652 | case SR_CHANNEL_ANALOG: |
| | 653 | if (ch->enabled == state->analog_channels[ch->index].state) |
| | 654 | break; |
| | 655 | g_snprintf(command, sizeof(command), |
| | 656 | (*model->scpi_dialect)[SCPI_CMD_SET_ANALOG_CHAN_STATE], |
| | 657 | ch->index + 1, ch->enabled); |
| | 658 | |
| | 659 | if (sr_scpi_send(scpi, command) != SR_OK) |
| | 660 | return SR_ERR; |
| | 661 | state->analog_channels[ch->index].state = ch->enabled; |
| | 662 | setup_changed = TRUE; |
| | 663 | break; |
| | 664 | case SR_CHANNEL_LOGIC: |
| | 665 | /* |
| | 666 | * A digital POD needs to be enabled for every group of |
| | 667 | * 8 channels. |
| | 668 | */ |
| | 669 | if (ch->enabled) |
| | 670 | pod_enabled[ch->index < 8 ? 0 : 1] = TRUE; |
| | 671 | |
| | 672 | if (ch->enabled == state->digital_channels[ch->index]) |
| | 673 | break; |
| | 674 | g_snprintf(command, sizeof(command), |
| | 675 | (*model->scpi_dialect)[SCPI_CMD_SET_DIG_CHAN_STATE], |
| | 676 | ch->index, ch->enabled); |
| | 677 | |
| | 678 | if (sr_scpi_send(scpi, command) != SR_OK) |
| | 679 | return SR_ERR; |
| | 680 | |
| | 681 | state->digital_channels[ch->index] = ch->enabled; |
| | 682 | setup_changed = TRUE; |
| | 683 | break; |
| | 684 | default: |
| | 685 | return SR_ERR; |
| | 686 | } |
| | 687 | } |
| | 688 | |
| | 689 | for (i = 1; i <= model->digital_pods; i++) { |
| | 690 | if (state->digital_pods[i - 1] == pod_enabled[i - 1]) |
| | 691 | continue; |
| | 692 | g_snprintf(command, sizeof(command), |
| | 693 | (*model->scpi_dialect)[SCPI_CMD_SET_DIG_POD_STATE], |
| | 694 | i, pod_enabled[i - 1]); |
| | 695 | if (sr_scpi_send(scpi, command) != SR_OK) |
| | 696 | return SR_ERR; |
| | 697 | state->digital_pods[i - 1] = pod_enabled[i - 1]; |
| | 698 | setup_changed = TRUE; |
| | 699 | } |
| | 700 | |
| | 701 | g_free(pod_enabled); |
| | 702 | |
| | 703 | if (setup_changed && hmo_update_sample_rate(sdi) != SR_OK) |
| | 704 | return SR_ERR; |
| | 705 | |
| | 706 | return SR_OK; |
| | 707 | } |
| | 708 | |
| | 709 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) |
| | 710 | { |
| | 711 | GSList *l; |
| | 712 | gboolean digital_added[MAX_DIGITAL_GROUP_COUNT]; |
| | 713 | size_t group, pod_count; |
| | 714 | struct sr_channel *ch; |
| | 715 | struct dev_context *devc; |
| | 716 | struct sr_scpi_dev_inst *scpi; |
| | 717 | int ret; |
| | 718 | |
| | 719 | scpi = sdi->conn; |
| | 720 | devc = sdi->priv; |
| | 721 | |
| | 722 | /* Preset empty results. */ |
| | 723 | for (group = 0; group < ARRAY_SIZE(digital_added); group++) |
| | 724 | digital_added[group] = FALSE; |
| | 725 | g_slist_free(devc->enabled_channels); |
| | 726 | devc->enabled_channels = NULL; |
| | 727 | |
| | 728 | /* |
| | 729 | * Contruct the list of enabled channels. Determine the highest |
| | 730 | * number of digital pods involved in the acquisition. |
| | 731 | */ |
| | 732 | pod_count = 0; |
| | 733 | for (l = sdi->channels; l; l = l->next) { |
| | 734 | ch = l->data; |
| | 735 | if (!ch->enabled) |
| | 736 | continue; |
| | 737 | /* Only add a single digital channel per group (pod). */ |
| | 738 | group = ch->index / 8; |
| | 739 | if (ch->type != SR_CHANNEL_LOGIC || !digital_added[group]) { |
| | 740 | devc->enabled_channels = g_slist_append( |
| | 741 | devc->enabled_channels, ch); |
| | 742 | if (ch->type == SR_CHANNEL_LOGIC) { |
| | 743 | digital_added[group] = TRUE; |
| | 744 | if (pod_count < group + 1) |
| | 745 | pod_count = group + 1; |
| | 746 | } |
| | 747 | } |
| | 748 | } |
| | 749 | if (!devc->enabled_channels) |
| | 750 | return SR_ERR; |
| | 751 | devc->pod_count = pod_count; |
| | 752 | devc->logic_data = NULL; |
| | 753 | |
| | 754 | /* |
| | 755 | * Check constraints. Some channels can be either analog or |
| | 756 | * digital, but not both at the same time. |
| | 757 | */ |
| | 758 | if (hmo_check_channels(devc->enabled_channels) != SR_OK) { |
| | 759 | sr_err("Invalid channel configuration specified!"); |
| | 760 | ret = SR_ERR_NA; |
| | 761 | goto free_enabled; |
| | 762 | } |
| | 763 | |
| | 764 | /* |
| | 765 | * Configure the analog and digital channels and the |
| | 766 | * corresponding digital pods. |
| | 767 | */ |
| | 768 | if (hmo_setup_channels(sdi) != SR_OK) { |
| | 769 | sr_err("Failed to setup channel configuration!"); |
| | 770 | ret = SR_ERR; |
| | 771 | goto free_enabled; |
| | 772 | } |
| | 773 | |
| | 774 | /* |
| | 775 | * Start acquisition on the first enabled channel. The |
| | 776 | * receive routine will continue driving the acquisition. |
| | 777 | */ |
| | 778 | sr_scpi_source_add(sdi->session, scpi, G_IO_IN, 50, |
| | 779 | hmo_receive_data, (void *)sdi); |
| | 780 | |
| | 781 | std_session_send_df_header(sdi); |
| | 782 | |
| | 783 | devc->current_channel = devc->enabled_channels; |
| | 784 | |
| | 785 | return hmo_request_data(sdi); |
| | 786 | |
| | 787 | free_enabled: |
| | 788 | g_slist_free(devc->enabled_channels); |
| | 789 | devc->enabled_channels = NULL; |
| | 790 | return ret; |
| | 791 | } |
| | 792 | |
| | 793 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) |
| | 794 | { |
| | 795 | struct dev_context *devc; |
| | 796 | struct sr_scpi_dev_inst *scpi; |
| | 797 | |
| | 798 | std_session_send_df_end(sdi); |
| | 799 | |
| | 800 | devc = sdi->priv; |
| | 801 | |
| | 802 | devc->num_frames = 0; |
| | 803 | g_slist_free(devc->enabled_channels); |
| | 804 | devc->enabled_channels = NULL; |
| | 805 | scpi = sdi->conn; |
| | 806 | sr_scpi_source_remove(sdi->session, scpi); |
| | 807 | |
| | 808 | return SR_OK; |
| | 809 | } |
| | 810 | |
| | 811 | static struct sr_dev_driver hameg_hmo_driver_info = { |
| | 812 | .name = "hameg-hmo", |
| | 813 | .longname = "Hameg HMO", |
| | 814 | .api_version = 1, |
| | 815 | .init = std_init, |
| | 816 | .cleanup = std_cleanup, |
| | 817 | .scan = scan, |
| | 818 | .dev_list = std_dev_list, |
| | 819 | .dev_clear = dev_clear, |
| | 820 | .config_get = config_get, |
| | 821 | .config_set = config_set, |
| | 822 | .config_list = config_list, |
| | 823 | .dev_open = dev_open, |
| | 824 | .dev_close = dev_close, |
| | 825 | .dev_acquisition_start = dev_acquisition_start, |
| | 826 | .dev_acquisition_stop = dev_acquisition_stop, |
| | 827 | .context = NULL, |
| | 828 | }; |
| | 829 | SR_REGISTER_DEV_DRIVER(hameg_hmo_driver_info); |
projects / libsigrok.git / blame_incremental