| | 1 | /* |
| | 2 | * This file is part of the sigrok project. |
| | 3 | * |
| | 4 | * Copyright (C) 2012 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 <stdio.h> |
| | 21 | #include <stdint.h> |
| | 22 | #include <stdlib.h> |
| | 23 | #include <sys/types.h> |
| | 24 | #include <sys/stat.h> |
| | 25 | #include <fcntl.h> |
| | 26 | #include <unistd.h> |
| | 27 | #include <string.h> |
| | 28 | #include <sys/time.h> |
| | 29 | #include <inttypes.h> |
| | 30 | #include <glib.h> |
| | 31 | #include <libusb.h> |
| | 32 | #include "libsigrok.h" |
| | 33 | #include "libsigrok-internal.h" |
| | 34 | #include "dso.h" |
| | 35 | |
| | 36 | /* Max time in ms before we want to check on USB events */ |
| | 37 | /* TODO tune this properly */ |
| | 38 | #define TICK 1 |
| | 39 | |
| | 40 | static const int32_t devopts[] = { |
| | 41 | SR_CONF_OSCILLOSCOPE, |
| | 42 | SR_CONF_LIMIT_FRAMES, |
| | 43 | SR_CONF_CONTINUOUS, |
| | 44 | SR_CONF_TIMEBASE, |
| | 45 | SR_CONF_BUFFERSIZE, |
| | 46 | SR_CONF_TRIGGER_SOURCE, |
| | 47 | SR_CONF_TRIGGER_SLOPE, |
| | 48 | SR_CONF_HORIZ_TRIGGERPOS, |
| | 49 | SR_CONF_FILTER, |
| | 50 | SR_CONF_VDIV, |
| | 51 | SR_CONF_COUPLING, |
| | 52 | }; |
| | 53 | |
| | 54 | static const char *probe_names[] = { |
| | 55 | "CH1", "CH2", |
| | 56 | NULL, |
| | 57 | }; |
| | 58 | |
| | 59 | static const uint64_t buffersizes_32k[] = { |
| | 60 | 10240, 32768, |
| | 61 | }; |
| | 62 | static const uint64_t buffersizes_512k[] = { |
| | 63 | 10240, 524288, |
| | 64 | }; |
| | 65 | static const uint64_t buffersizes_14k[] = { |
| | 66 | 10240, 14336, |
| | 67 | }; |
| | 68 | |
| | 69 | static const struct dso_profile dev_profiles[] = { |
| | 70 | { 0x04b4, 0x2090, 0x04b5, 0x2090, |
| | 71 | "Hantek", "DSO-2090", |
| | 72 | buffersizes_32k, |
| | 73 | FIRMWARE_DIR "/hantek-dso-2090.fw" }, |
| | 74 | { 0x04b4, 0x2150, 0x04b5, 0x2150, |
| | 75 | "Hantek", "DSO-2150", |
| | 76 | buffersizes_32k, |
| | 77 | FIRMWARE_DIR "/hantek-dso-2150.fw" }, |
| | 78 | { 0x04b4, 0x2250, 0x04b5, 0x2250, |
| | 79 | "Hantek", "DSO-2250", |
| | 80 | buffersizes_512k, |
| | 81 | FIRMWARE_DIR "/hantek-dso-2250.fw" }, |
| | 82 | { 0x04b4, 0x5200, 0x04b5, 0x5200, |
| | 83 | "Hantek", "DSO-5200", |
| | 84 | buffersizes_14k, |
| | 85 | FIRMWARE_DIR "/hantek-dso-5200.fw" }, |
| | 86 | { 0x04b4, 0x520a, 0x04b5, 0x520a, |
| | 87 | "Hantek", "DSO-5200A", |
| | 88 | buffersizes_512k, |
| | 89 | FIRMWARE_DIR "/hantek-dso-5200A.fw" }, |
| | 90 | { 0, 0, 0, 0, 0, 0, 0, 0 }, |
| | 91 | }; |
| | 92 | |
| | 93 | static const uint64_t timebases[][2] = { |
| | 94 | /* microseconds */ |
| | 95 | { 10, 1000000 }, |
| | 96 | { 20, 1000000 }, |
| | 97 | { 40, 1000000 }, |
| | 98 | { 100, 1000000 }, |
| | 99 | { 200, 1000000 }, |
| | 100 | { 400, 1000000 }, |
| | 101 | /* milliseconds */ |
| | 102 | { 1, 1000 }, |
| | 103 | { 2, 1000 }, |
| | 104 | { 4, 1000 }, |
| | 105 | { 10, 1000 }, |
| | 106 | { 20, 1000 }, |
| | 107 | { 40, 1000 }, |
| | 108 | { 100, 1000 }, |
| | 109 | { 200, 1000 }, |
| | 110 | { 400, 1000 }, |
| | 111 | }; |
| | 112 | |
| | 113 | static const uint64_t vdivs[][2] = { |
| | 114 | /* millivolts */ |
| | 115 | { 10, 1000 }, |
| | 116 | { 20, 1000 }, |
| | 117 | { 50, 1000 }, |
| | 118 | { 100, 1000 }, |
| | 119 | { 200, 1000 }, |
| | 120 | { 500, 1000 }, |
| | 121 | /* volts */ |
| | 122 | { 1, 1 }, |
| | 123 | { 2, 1 }, |
| | 124 | { 5, 1 }, |
| | 125 | }; |
| | 126 | |
| | 127 | static const char *trigger_sources[] = { |
| | 128 | "CH1", |
| | 129 | "CH2", |
| | 130 | "EXT", |
| | 131 | /* TODO: forced */ |
| | 132 | }; |
| | 133 | |
| | 134 | static const char *filter_targets[] = { |
| | 135 | "CH1", |
| | 136 | "CH2", |
| | 137 | /* TODO: "TRIGGER", */ |
| | 138 | }; |
| | 139 | |
| | 140 | static const char *coupling[] = { |
| | 141 | "AC", |
| | 142 | "DC", |
| | 143 | "GND", |
| | 144 | }; |
| | 145 | |
| | 146 | SR_PRIV struct sr_dev_driver hantek_dso_driver_info; |
| | 147 | static struct sr_dev_driver *di = &hantek_dso_driver_info; |
| | 148 | |
| | 149 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data); |
| | 150 | |
| | 151 | static struct sr_dev_inst *dso_dev_new(int index, const struct dso_profile *prof) |
| | 152 | { |
| | 153 | struct sr_dev_inst *sdi; |
| | 154 | struct sr_probe *probe; |
| | 155 | struct drv_context *drvc; |
| | 156 | struct dev_context *devc; |
| | 157 | int i; |
| | 158 | |
| | 159 | sdi = sr_dev_inst_new(index, SR_ST_INITIALIZING, |
| | 160 | prof->vendor, prof->model, NULL); |
| | 161 | if (!sdi) |
| | 162 | return NULL; |
| | 163 | sdi->driver = di; |
| | 164 | |
| | 165 | /* |
| | 166 | * Add only the real probes -- EXT isn't a source of data, only |
| | 167 | * a trigger source internal to the device. |
| | 168 | */ |
| | 169 | for (i = 0; probe_names[i]; i++) { |
| | 170 | if (!(probe = sr_probe_new(i, SR_PROBE_ANALOG, TRUE, |
| | 171 | probe_names[i]))) |
| | 172 | return NULL; |
| | 173 | sdi->probes = g_slist_append(sdi->probes, probe); |
| | 174 | } |
| | 175 | |
| | 176 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { |
| | 177 | sr_err("Device context malloc failed."); |
| | 178 | return NULL; |
| | 179 | } |
| | 180 | |
| | 181 | devc->profile = prof; |
| | 182 | devc->dev_state = IDLE; |
| | 183 | devc->timebase = DEFAULT_TIMEBASE; |
| | 184 | devc->ch1_enabled = TRUE; |
| | 185 | devc->ch2_enabled = TRUE; |
| | 186 | devc->voltage_ch1 = DEFAULT_VOLTAGE; |
| | 187 | devc->voltage_ch2 = DEFAULT_VOLTAGE; |
| | 188 | devc->coupling_ch1 = DEFAULT_COUPLING; |
| | 189 | devc->coupling_ch2 = DEFAULT_COUPLING; |
| | 190 | devc->voffset_ch1 = DEFAULT_VERT_OFFSET; |
| | 191 | devc->voffset_ch2 = DEFAULT_VERT_OFFSET; |
| | 192 | devc->voffset_trigger = DEFAULT_VERT_TRIGGERPOS; |
| | 193 | devc->framesize = DEFAULT_FRAMESIZE; |
| | 194 | devc->triggerslope = SLOPE_POSITIVE; |
| | 195 | devc->triggersource = g_strdup(DEFAULT_TRIGGER_SOURCE); |
| | 196 | devc->triggerposition = DEFAULT_HORIZ_TRIGGERPOS; |
| | 197 | sdi->priv = devc; |
| | 198 | drvc = di->priv; |
| | 199 | drvc->instances = g_slist_append(drvc->instances, sdi); |
| | 200 | |
| | 201 | return sdi; |
| | 202 | } |
| | 203 | |
| | 204 | static int configure_probes(const struct sr_dev_inst *sdi) |
| | 205 | { |
| | 206 | struct dev_context *devc; |
| | 207 | struct sr_probe *probe; |
| | 208 | const GSList *l; |
| | 209 | int p; |
| | 210 | |
| | 211 | devc = sdi->priv; |
| | 212 | |
| | 213 | g_slist_free(devc->enabled_probes); |
| | 214 | devc->ch1_enabled = devc->ch2_enabled = FALSE; |
| | 215 | for (l = sdi->probes, p = 0; l; l = l->next, p++) { |
| | 216 | probe = l->data; |
| | 217 | if (p == 0) |
| | 218 | devc->ch1_enabled = probe->enabled; |
| | 219 | else |
| | 220 | devc->ch2_enabled = probe->enabled; |
| | 221 | if (probe->enabled) |
| | 222 | devc->enabled_probes = g_slist_append(devc->enabled_probes, probe); |
| | 223 | } |
| | 224 | |
| | 225 | return SR_OK; |
| | 226 | } |
| | 227 | |
| | 228 | /* Properly close and free all devices. */ |
| | 229 | static int clear_instances(void) |
| | 230 | { |
| | 231 | struct sr_dev_inst *sdi; |
| | 232 | struct drv_context *drvc; |
| | 233 | struct dev_context *devc; |
| | 234 | GSList *l; |
| | 235 | |
| | 236 | drvc = di->priv; |
| | 237 | for (l = drvc->instances; l; l = l->next) { |
| | 238 | if (!(sdi = l->data)) { |
| | 239 | /* Log error, but continue cleaning up the rest. */ |
| | 240 | sr_err("%s: sdi was NULL, continuing", __func__); |
| | 241 | continue; |
| | 242 | } |
| | 243 | if (!(devc = sdi->priv)) { |
| | 244 | /* Log error, but continue cleaning up the rest. */ |
| | 245 | sr_err("%s: sdi->priv was NULL, continuing", __func__); |
| | 246 | continue; |
| | 247 | } |
| | 248 | dso_close(sdi); |
| | 249 | sr_usb_dev_inst_free(devc->usb); |
| | 250 | g_free(devc->triggersource); |
| | 251 | g_slist_free(devc->enabled_probes); |
| | 252 | |
| | 253 | sr_dev_inst_free(sdi); |
| | 254 | } |
| | 255 | |
| | 256 | g_slist_free(drvc->instances); |
| | 257 | drvc->instances = NULL; |
| | 258 | |
| | 259 | return SR_OK; |
| | 260 | } |
| | 261 | |
| | 262 | static int hw_init(struct sr_context *sr_ctx) |
| | 263 | { |
| | 264 | return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN); |
| | 265 | } |
| | 266 | |
| | 267 | static GSList *hw_scan(GSList *options) |
| | 268 | { |
| | 269 | struct sr_dev_inst *sdi; |
| | 270 | const struct dso_profile *prof; |
| | 271 | struct drv_context *drvc; |
| | 272 | struct dev_context *devc; |
| | 273 | GSList *devices; |
| | 274 | struct libusb_device_descriptor des; |
| | 275 | libusb_device **devlist; |
| | 276 | int devcnt, ret, i, j; |
| | 277 | |
| | 278 | (void)options; |
| | 279 | |
| | 280 | drvc = di->priv; |
| | 281 | drvc->instances = NULL; |
| | 282 | |
| | 283 | devcnt = 0; |
| | 284 | devices = 0; |
| | 285 | |
| | 286 | clear_instances(); |
| | 287 | |
| | 288 | /* Find all Hantek DSO devices and upload firmware to all of them. */ |
| | 289 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
| | 290 | for (i = 0; devlist[i]; i++) { |
| | 291 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { |
| | 292 | sr_err("Failed to get device descriptor: %s.", |
| | 293 | libusb_error_name(ret)); |
| | 294 | continue; |
| | 295 | } |
| | 296 | |
| | 297 | prof = NULL; |
| | 298 | for (j = 0; dev_profiles[j].orig_vid; j++) { |
| | 299 | if (des.idVendor == dev_profiles[j].orig_vid |
| | 300 | && des.idProduct == dev_profiles[j].orig_pid) { |
| | 301 | /* Device matches the pre-firmware profile. */ |
| | 302 | prof = &dev_profiles[j]; |
| | 303 | sr_dbg("Found a %s %s.", prof->vendor, prof->model); |
| | 304 | sdi = dso_dev_new(devcnt, prof); |
| | 305 | devices = g_slist_append(devices, sdi); |
| | 306 | devc = sdi->priv; |
| | 307 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, |
| | 308 | prof->firmware) == SR_OK) |
| | 309 | /* Remember when the firmware on this device was updated */ |
| | 310 | devc->fw_updated = g_get_monotonic_time(); |
| | 311 | else |
| | 312 | sr_err("Firmware upload failed for " |
| | 313 | "device %d.", devcnt); |
| | 314 | /* Dummy USB address of 0xff will get overwritten later. */ |
| | 315 | devc->usb = sr_usb_dev_inst_new( |
| | 316 | libusb_get_bus_number(devlist[i]), 0xff, NULL); |
| | 317 | devcnt++; |
| | 318 | break; |
| | 319 | } else if (des.idVendor == dev_profiles[j].fw_vid |
| | 320 | && des.idProduct == dev_profiles[j].fw_pid) { |
| | 321 | /* Device matches the post-firmware profile. */ |
| | 322 | prof = &dev_profiles[j]; |
| | 323 | sr_dbg("Found a %s %s.", prof->vendor, prof->model); |
| | 324 | sdi = dso_dev_new(devcnt, prof); |
| | 325 | sdi->status = SR_ST_INACTIVE; |
| | 326 | devices = g_slist_append(devices, sdi); |
| | 327 | devc = sdi->priv; |
| | 328 | devc->usb = sr_usb_dev_inst_new( |
| | 329 | libusb_get_bus_number(devlist[i]), |
| | 330 | libusb_get_device_address(devlist[i]), NULL); |
| | 331 | devcnt++; |
| | 332 | break; |
| | 333 | } |
| | 334 | } |
| | 335 | if (!prof) |
| | 336 | /* not a supported VID/PID */ |
| | 337 | continue; |
| | 338 | } |
| | 339 | libusb_free_device_list(devlist, 1); |
| | 340 | |
| | 341 | return devices; |
| | 342 | } |
| | 343 | |
| | 344 | static GSList *hw_dev_list(void) |
| | 345 | { |
| | 346 | return ((struct drv_context *)(di->priv))->instances; |
| | 347 | } |
| | 348 | |
| | 349 | static int hw_dev_open(struct sr_dev_inst *sdi) |
| | 350 | { |
| | 351 | struct dev_context *devc; |
| | 352 | int64_t timediff_us, timediff_ms; |
| | 353 | int err; |
| | 354 | |
| | 355 | devc = sdi->priv; |
| | 356 | |
| | 357 | /* |
| | 358 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS |
| | 359 | * for the FX2 to renumerate. |
| | 360 | */ |
| | 361 | err = SR_ERR; |
| | 362 | if (devc->fw_updated > 0) { |
| | 363 | sr_info("Waiting for device to reset."); |
| | 364 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ |
| | 365 | g_usleep(300 * 1000); |
| | 366 | timediff_ms = 0; |
| | 367 | while (timediff_ms < MAX_RENUM_DELAY_MS) { |
| | 368 | if ((err = dso_open(sdi)) == SR_OK) |
| | 369 | break; |
| | 370 | g_usleep(100 * 1000); |
| | 371 | timediff_us = g_get_monotonic_time() - devc->fw_updated; |
| | 372 | timediff_ms = timediff_us / 1000; |
| | 373 | sr_spew("Waited %" PRIi64 " ms.", timediff_ms); |
| | 374 | } |
| | 375 | sr_info("Device came back after %d ms.", timediff_ms); |
| | 376 | } else { |
| | 377 | err = dso_open(sdi); |
| | 378 | } |
| | 379 | |
| | 380 | if (err != SR_OK) { |
| | 381 | sr_err("Unable to open device."); |
| | 382 | return SR_ERR; |
| | 383 | } |
| | 384 | |
| | 385 | err = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE); |
| | 386 | if (err != 0) { |
| | 387 | sr_err("Unable to claim interface: %s.", |
| | 388 | libusb_error_name(err)); |
| | 389 | return SR_ERR; |
| | 390 | } |
| | 391 | |
| | 392 | return SR_OK; |
| | 393 | } |
| | 394 | |
| | 395 | static int hw_dev_close(struct sr_dev_inst *sdi) |
| | 396 | { |
| | 397 | dso_close(sdi); |
| | 398 | |
| | 399 | return SR_OK; |
| | 400 | } |
| | 401 | |
| | 402 | static int hw_cleanup(void) |
| | 403 | { |
| | 404 | struct drv_context *drvc; |
| | 405 | |
| | 406 | if (!(drvc = di->priv)) |
| | 407 | return SR_OK; |
| | 408 | |
| | 409 | clear_instances(); |
| | 410 | |
| | 411 | return SR_OK; |
| | 412 | } |
| | 413 | |
| | 414 | static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi) |
| | 415 | { |
| | 416 | struct dev_context *devc; |
| | 417 | double tmp_double; |
| | 418 | uint64_t tmp_u64, p, q; |
| | 419 | int tmp_int, ret; |
| | 420 | unsigned int i; |
| | 421 | const char *tmp_str; |
| | 422 | char **targets; |
| | 423 | |
| | 424 | if (sdi->status != SR_ST_ACTIVE) |
| | 425 | return SR_ERR; |
| | 426 | |
| | 427 | ret = SR_OK; |
| | 428 | devc = sdi->priv; |
| | 429 | switch (id) { |
| | 430 | case SR_CONF_LIMIT_FRAMES: |
| | 431 | devc->limit_frames = g_variant_get_uint64(data); |
| | 432 | break; |
| | 433 | case SR_CONF_TRIGGER_SLOPE: |
| | 434 | tmp_u64 = g_variant_get_uint64(data); |
| | 435 | if (tmp_u64 != SLOPE_NEGATIVE && tmp_u64 != SLOPE_POSITIVE) |
| | 436 | ret = SR_ERR_ARG; |
| | 437 | devc->triggerslope = tmp_u64; |
| | 438 | break; |
| | 439 | case SR_CONF_HORIZ_TRIGGERPOS: |
| | 440 | tmp_double = g_variant_get_double(data); |
| | 441 | if (tmp_double < 0.0 || tmp_double > 1.0) { |
| | 442 | sr_err("Trigger position should be between 0.0 and 1.0."); |
| | 443 | ret = SR_ERR_ARG; |
| | 444 | } else |
| | 445 | devc->triggerposition = tmp_double; |
| | 446 | break; |
| | 447 | case SR_CONF_BUFFERSIZE: |
| | 448 | tmp_u64 = g_variant_get_uint64(data); |
| | 449 | for (i = 0; i < 2; i++) { |
| | 450 | if (devc->profile->buffersizes[i] == tmp_u64) { |
| | 451 | devc->framesize = tmp_u64; |
| | 452 | break; |
| | 453 | } |
| | 454 | } |
| | 455 | if (i == 2) |
| | 456 | ret = SR_ERR_ARG; |
| | 457 | break; |
| | 458 | case SR_CONF_TIMEBASE: |
| | 459 | g_variant_get(data, "(tt)", &p, &q); |
| | 460 | tmp_int = -1; |
| | 461 | for (i = 0; i < ARRAY_SIZE(timebases); i++) { |
| | 462 | if (timebases[i][0] == p && timebases[i][1] == q) { |
| | 463 | tmp_int = i; |
| | 464 | break; |
| | 465 | } |
| | 466 | } |
| | 467 | if (tmp_int >= 0) |
| | 468 | devc->timebase = tmp_int; |
| | 469 | else |
| | 470 | ret = SR_ERR_ARG; |
| | 471 | break; |
| | 472 | case SR_CONF_TRIGGER_SOURCE: |
| | 473 | tmp_str = g_variant_get_string(data, NULL); |
| | 474 | for (i = 0; trigger_sources[i]; i++) { |
| | 475 | if (!strcmp(tmp_str, trigger_sources[i])) { |
| | 476 | devc->triggersource = g_strdup(tmp_str); |
| | 477 | break; |
| | 478 | } |
| | 479 | } |
| | 480 | if (trigger_sources[i] == 0) |
| | 481 | ret = SR_ERR_ARG; |
| | 482 | break; |
| | 483 | case SR_CONF_FILTER: |
| | 484 | tmp_str = g_variant_get_string(data, NULL); |
| | 485 | devc->filter_ch1 = devc->filter_ch2 = devc->filter_trigger = 0; |
| | 486 | targets = g_strsplit(tmp_str, ",", 0); |
| | 487 | for (i = 0; targets[i]; i++) { |
| | 488 | if (targets[i] == '\0') |
| | 489 | /* Empty filter string can be used to clear them all. */ |
| | 490 | ; |
| | 491 | else if (!strcmp(targets[i], "CH1")) |
| | 492 | devc->filter_ch1 = TRUE; |
| | 493 | else if (!strcmp(targets[i], "CH2")) |
| | 494 | devc->filter_ch2 = TRUE; |
| | 495 | else if (!strcmp(targets[i], "TRIGGER")) |
| | 496 | devc->filter_trigger = TRUE; |
| | 497 | else { |
| | 498 | sr_err("Invalid filter target %s.", targets[i]); |
| | 499 | ret = SR_ERR_ARG; |
| | 500 | } |
| | 501 | } |
| | 502 | g_strfreev(targets); |
| | 503 | break; |
| | 504 | case SR_CONF_VDIV: |
| | 505 | /* TODO: Not supporting vdiv per channel yet. */ |
| | 506 | g_variant_get(data, "(tt)", &p, &q); |
| | 507 | tmp_int = -1; |
| | 508 | for (i = 0; i < ARRAY_SIZE(vdivs); i++) { |
| | 509 | if (vdivs[i][0] == p && vdivs[i][1] == q) { |
| | 510 | tmp_int = i; |
| | 511 | break; |
| | 512 | } |
| | 513 | } |
| | 514 | if (tmp_int >= 0) { |
| | 515 | devc->voltage_ch1 = tmp_int; |
| | 516 | devc->voltage_ch2 = tmp_int; |
| | 517 | } else |
| | 518 | ret = SR_ERR_ARG; |
| | 519 | break; |
| | 520 | case SR_CONF_COUPLING: |
| | 521 | tmp_str = g_variant_get_string(data, NULL); |
| | 522 | /* TODO: Not supporting coupling per channel yet. */ |
| | 523 | for (i = 0; coupling[i]; i++) { |
| | 524 | if (!strcmp(tmp_str, coupling[i])) { |
| | 525 | devc->coupling_ch1 = i; |
| | 526 | devc->coupling_ch2 = i; |
| | 527 | break; |
| | 528 | } |
| | 529 | } |
| | 530 | if (coupling[i] == 0) |
| | 531 | ret = SR_ERR_ARG; |
| | 532 | break; |
| | 533 | default: |
| | 534 | ret = SR_ERR_ARG; |
| | 535 | break; |
| | 536 | } |
| | 537 | |
| | 538 | return ret; |
| | 539 | } |
| | 540 | |
| | 541 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi) |
| | 542 | { |
| | 543 | struct dev_context *devc; |
| | 544 | GVariant *tuple, *rational[2]; |
| | 545 | GVariantBuilder gvb; |
| | 546 | unsigned int i; |
| | 547 | |
| | 548 | (void)sdi; |
| | 549 | |
| | 550 | if (!sdi) |
| | 551 | return SR_ERR_ARG; |
| | 552 | |
| | 553 | devc = sdi->priv; |
| | 554 | switch (key) { |
| | 555 | case SR_CONF_DEVICE_OPTIONS: |
| | 556 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, |
| | 557 | devopts, ARRAY_SIZE(devopts), sizeof(int32_t)); |
| | 558 | break; |
| | 559 | case SR_CONF_BUFFERSIZE: |
| | 560 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT64, |
| | 561 | devc->profile->buffersizes, 2, sizeof(uint64_t)); |
| | 562 | break; |
| | 563 | case SR_CONF_COUPLING: |
| | 564 | *data = g_variant_new_strv(coupling, ARRAY_SIZE(coupling)); |
| | 565 | break; |
| | 566 | case SR_CONF_VDIV: |
| | 567 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); |
| | 568 | for (i = 0; i < ARRAY_SIZE(vdivs); i++) { |
| | 569 | rational[0] = g_variant_new_uint64(vdivs[i][0]); |
| | 570 | rational[1] = g_variant_new_uint64(vdivs[i][1]); |
| | 571 | tuple = g_variant_new_tuple(rational, 2); |
| | 572 | g_variant_builder_add_value(&gvb, tuple); |
| | 573 | } |
| | 574 | *data = g_variant_builder_end(&gvb); |
| | 575 | break; |
| | 576 | case SR_CONF_FILTER: |
| | 577 | *data = g_variant_new_strv(filter_targets, |
| | 578 | ARRAY_SIZE(filter_targets)); |
| | 579 | break; |
| | 580 | case SR_CONF_TIMEBASE: |
| | 581 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); |
| | 582 | for (i = 0; i < ARRAY_SIZE(timebases); i++) { |
| | 583 | rational[0] = g_variant_new_uint64(timebases[i][0]); |
| | 584 | rational[1] = g_variant_new_uint64(timebases[i][1]); |
| | 585 | tuple = g_variant_new_tuple(rational, 2); |
| | 586 | g_variant_builder_add_value(&gvb, tuple); |
| | 587 | } |
| | 588 | *data = g_variant_builder_end(&gvb); |
| | 589 | break; |
| | 590 | case SR_CONF_TRIGGER_SOURCE: |
| | 591 | *data = g_variant_new_strv(trigger_sources, |
| | 592 | ARRAY_SIZE(trigger_sources)); |
| | 593 | break; |
| | 594 | default: |
| | 595 | return SR_ERR_ARG; |
| | 596 | } |
| | 597 | |
| | 598 | return SR_OK; |
| | 599 | } |
| | 600 | |
| | 601 | static void send_chunk(struct sr_dev_inst *sdi, unsigned char *buf, |
| | 602 | int num_samples) |
| | 603 | { |
| | 604 | struct sr_datafeed_packet packet; |
| | 605 | struct sr_datafeed_analog analog; |
| | 606 | struct dev_context *devc; |
| | 607 | float ch1, ch2, range; |
| | 608 | int num_probes, data_offset, i; |
| | 609 | |
| | 610 | devc = sdi->priv; |
| | 611 | num_probes = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; |
| | 612 | packet.type = SR_DF_ANALOG; |
| | 613 | packet.payload = &analog; |
| | 614 | /* TODO: support for 5xxx series 9-bit samples */ |
| | 615 | analog.probes = devc->enabled_probes; |
| | 616 | analog.num_samples = num_samples; |
| | 617 | analog.mq = SR_MQ_VOLTAGE; |
| | 618 | analog.unit = SR_UNIT_VOLT; |
| | 619 | /* TODO: Check malloc return value. */ |
| | 620 | analog.data = g_try_malloc(analog.num_samples * sizeof(float) * num_probes); |
| | 621 | data_offset = 0; |
| | 622 | for (i = 0; i < analog.num_samples; i++) { |
| | 623 | /* |
| | 624 | * The device always sends data for both channels. If a channel |
| | 625 | * is disabled, it contains a copy of the enabled channel's |
| | 626 | * data. However, we only send the requested channels to |
| | 627 | * the bus. |
| | 628 | * |
| | 629 | * Voltage values are encoded as a value 0-255 (0-512 on the |
| | 630 | * DSO-5200*), where the value is a point in the range |
| | 631 | * represented by the vdiv setting. There are 8 vertical divs, |
| | 632 | * so e.g. 500mV/div represents 4V peak-to-peak where 0 = -2V |
| | 633 | * and 255 = +2V. |
| | 634 | */ |
| | 635 | /* TODO: Support for DSO-5xxx series 9-bit samples. */ |
| | 636 | if (devc->ch1_enabled) { |
| | 637 | range = ((float)vdivs[devc->voltage_ch1][0] / vdivs[devc->voltage_ch1][1]) * 8; |
| | 638 | ch1 = range / 255 * *(buf + i * 2 + 1); |
| | 639 | /* Value is centered around 0V. */ |
| | 640 | ch1 -= range / 2; |
| | 641 | analog.data[data_offset++] = ch1; |
| | 642 | } |
| | 643 | if (devc->ch2_enabled) { |
| | 644 | range = ((float)vdivs[devc->voltage_ch2][0] / vdivs[devc->voltage_ch2][1]) * 8; |
| | 645 | ch2 = range / 255 * *(buf + i * 2); |
| | 646 | ch2 -= range / 2; |
| | 647 | analog.data[data_offset++] = ch2; |
| | 648 | } |
| | 649 | } |
| | 650 | sr_session_send(devc->cb_data, &packet); |
| | 651 | } |
| | 652 | |
| | 653 | /* |
| | 654 | * Called by libusb (as triggered by handle_event()) when a transfer comes in. |
| | 655 | * Only channel data comes in asynchronously, and all transfers for this are |
| | 656 | * queued up beforehand, so this just needs to chuck the incoming data onto |
| | 657 | * the libsigrok session bus. |
| | 658 | */ |
| | 659 | static void receive_transfer(struct libusb_transfer *transfer) |
| | 660 | { |
| | 661 | struct sr_datafeed_packet packet; |
| | 662 | struct sr_dev_inst *sdi; |
| | 663 | struct dev_context *devc; |
| | 664 | int num_samples, pre; |
| | 665 | |
| | 666 | sdi = transfer->user_data; |
| | 667 | devc = sdi->priv; |
| | 668 | sr_spew("receive_transfer(): status %d received %d bytes.", |
| | 669 | transfer->status, transfer->actual_length); |
| | 670 | |
| | 671 | if (transfer->actual_length == 0) |
| | 672 | /* Nothing to send to the bus. */ |
| | 673 | return; |
| | 674 | |
| | 675 | num_samples = transfer->actual_length / 2; |
| | 676 | |
| | 677 | sr_spew("Got %d-%d/%d samples in frame.", devc->samp_received + 1, |
| | 678 | devc->samp_received + num_samples, devc->framesize); |
| | 679 | |
| | 680 | /* |
| | 681 | * The device always sends a full frame, but the beginning of the frame |
| | 682 | * doesn't represent the trigger point. The offset at which the trigger |
| | 683 | * happened came in with the capture state, so we need to start sending |
| | 684 | * from there up the session bus. The samples in the frame buffer |
| | 685 | * before that trigger point came after the end of the device's frame |
| | 686 | * buffer was reached, and it wrapped around to overwrite up until the |
| | 687 | * trigger point. |
| | 688 | */ |
| | 689 | if (devc->samp_received < devc->trigger_offset) { |
| | 690 | /* Trigger point not yet reached. */ |
| | 691 | if (devc->samp_received + num_samples < devc->trigger_offset) { |
| | 692 | /* The entire chunk is before the trigger point. */ |
| | 693 | memcpy(devc->framebuf + devc->samp_buffered * 2, |
| | 694 | transfer->buffer, num_samples * 2); |
| | 695 | devc->samp_buffered += num_samples; |
| | 696 | } else { |
| | 697 | /* |
| | 698 | * This chunk hits or overruns the trigger point. |
| | 699 | * Store the part before the trigger fired, and |
| | 700 | * send the rest up to the session bus. |
| | 701 | */ |
| | 702 | pre = devc->trigger_offset - devc->samp_received; |
| | 703 | memcpy(devc->framebuf + devc->samp_buffered * 2, |
| | 704 | transfer->buffer, pre * 2); |
| | 705 | devc->samp_buffered += pre; |
| | 706 | |
| | 707 | /* The rest of this chunk starts with the trigger point. */ |
| | 708 | sr_dbg("Reached trigger point, %d samples buffered.", |
| | 709 | devc->samp_buffered); |
| | 710 | |
| | 711 | /* Avoid the corner case where the chunk ended at |
| | 712 | * exactly the trigger point. */ |
| | 713 | if (num_samples > pre) |
| | 714 | send_chunk(sdi, transfer->buffer + pre * 2, |
| | 715 | num_samples - pre); |
| | 716 | } |
| | 717 | } else { |
| | 718 | /* Already past the trigger point, just send it all out. */ |
| | 719 | send_chunk(sdi, transfer->buffer, |
| | 720 | num_samples); |
| | 721 | } |
| | 722 | |
| | 723 | devc->samp_received += num_samples; |
| | 724 | |
| | 725 | /* Everything in this transfer was either copied to the buffer or |
| | 726 | * sent to the session bus. */ |
| | 727 | g_free(transfer->buffer); |
| | 728 | libusb_free_transfer(transfer); |
| | 729 | |
| | 730 | if (devc->samp_received >= devc->framesize) { |
| | 731 | /* That was the last chunk in this frame. Send the buffered |
| | 732 | * pre-trigger samples out now, in one big chunk. */ |
| | 733 | sr_dbg("End of frame, sending %d pre-trigger buffered samples.", |
| | 734 | devc->samp_buffered); |
| | 735 | send_chunk(sdi, devc->framebuf, devc->samp_buffered); |
| | 736 | |
| | 737 | /* Mark the end of this frame. */ |
| | 738 | packet.type = SR_DF_FRAME_END; |
| | 739 | sr_session_send(devc->cb_data, &packet); |
| | 740 | |
| | 741 | if (devc->limit_frames && ++devc->num_frames == devc->limit_frames) { |
| | 742 | /* Terminate session */ |
| | 743 | devc->dev_state = STOPPING; |
| | 744 | } else { |
| | 745 | devc->dev_state = NEW_CAPTURE; |
| | 746 | } |
| | 747 | } |
| | 748 | } |
| | 749 | |
| | 750 | static int handle_event(int fd, int revents, void *cb_data) |
| | 751 | { |
| | 752 | const struct sr_dev_inst *sdi; |
| | 753 | struct sr_datafeed_packet packet; |
| | 754 | struct timeval tv; |
| | 755 | struct dev_context *devc; |
| | 756 | struct drv_context *drvc = di->priv; |
| | 757 | const struct libusb_pollfd **lupfd; |
| | 758 | int num_probes, i; |
| | 759 | uint32_t trigger_offset; |
| | 760 | uint8_t capturestate; |
| | 761 | |
| | 762 | (void)fd; |
| | 763 | (void)revents; |
| | 764 | |
| | 765 | sdi = cb_data; |
| | 766 | devc = sdi->priv; |
| | 767 | if (devc->dev_state == STOPPING) { |
| | 768 | /* We've been told to wind up the acquisition. */ |
| | 769 | sr_dbg("Stopping acquisition."); |
| | 770 | /* |
| | 771 | * TODO: Doesn't really cancel pending transfers so they might |
| | 772 | * come in after SR_DF_END is sent. |
| | 773 | */ |
| | 774 | lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx); |
| | 775 | for (i = 0; lupfd[i]; i++) |
| | 776 | sr_source_remove(lupfd[i]->fd); |
| | 777 | free(lupfd); |
| | 778 | |
| | 779 | packet.type = SR_DF_END; |
| | 780 | sr_session_send(sdi, &packet); |
| | 781 | |
| | 782 | devc->dev_state = IDLE; |
| | 783 | |
| | 784 | return TRUE; |
| | 785 | } |
| | 786 | |
| | 787 | /* Always handle pending libusb events. */ |
| | 788 | tv.tv_sec = tv.tv_usec = 0; |
| | 789 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); |
| | 790 | |
| | 791 | /* TODO: ugh */ |
| | 792 | if (devc->dev_state == NEW_CAPTURE) { |
| | 793 | if (dso_capture_start(devc) != SR_OK) |
| | 794 | return TRUE; |
| | 795 | if (dso_enable_trigger(devc) != SR_OK) |
| | 796 | return TRUE; |
| | 797 | // if (dso_force_trigger(devc) != SR_OK) |
| | 798 | // return TRUE; |
| | 799 | sr_dbg("Successfully requested next chunk."); |
| | 800 | devc->dev_state = CAPTURE; |
| | 801 | return TRUE; |
| | 802 | } |
| | 803 | if (devc->dev_state != CAPTURE) |
| | 804 | return TRUE; |
| | 805 | |
| | 806 | if ((dso_get_capturestate(devc, &capturestate, &trigger_offset)) != SR_OK) |
| | 807 | return TRUE; |
| | 808 | |
| | 809 | sr_dbg("Capturestate %d.", capturestate); |
| | 810 | sr_dbg("Trigger offset 0x%.6x.", trigger_offset); |
| | 811 | switch (capturestate) { |
| | 812 | case CAPTURE_EMPTY: |
| | 813 | if (++devc->capture_empty_count >= MAX_CAPTURE_EMPTY) { |
| | 814 | devc->capture_empty_count = 0; |
| | 815 | if (dso_capture_start(devc) != SR_OK) |
| | 816 | break; |
| | 817 | if (dso_enable_trigger(devc) != SR_OK) |
| | 818 | break; |
| | 819 | // if (dso_force_trigger(devc) != SR_OK) |
| | 820 | // break; |
| | 821 | sr_dbg("Successfully requested next chunk."); |
| | 822 | } |
| | 823 | break; |
| | 824 | case CAPTURE_FILLING: |
| | 825 | /* No data yet. */ |
| | 826 | break; |
| | 827 | case CAPTURE_READY_8BIT: |
| | 828 | /* Remember where in the captured frame the trigger is. */ |
| | 829 | devc->trigger_offset = trigger_offset; |
| | 830 | |
| | 831 | num_probes = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; |
| | 832 | /* TODO: Check malloc return value. */ |
| | 833 | devc->framebuf = g_try_malloc(devc->framesize * num_probes * 2); |
| | 834 | devc->samp_buffered = devc->samp_received = 0; |
| | 835 | |
| | 836 | /* Tell the scope to send us the first frame. */ |
| | 837 | if (dso_get_channeldata(sdi, receive_transfer) != SR_OK) |
| | 838 | break; |
| | 839 | |
| | 840 | /* |
| | 841 | * Don't hit the state machine again until we're done fetching |
| | 842 | * the data we just told the scope to send. |
| | 843 | */ |
| | 844 | devc->dev_state = FETCH_DATA; |
| | 845 | |
| | 846 | /* Tell the frontend a new frame is on the way. */ |
| | 847 | packet.type = SR_DF_FRAME_BEGIN; |
| | 848 | sr_session_send(sdi, &packet); |
| | 849 | break; |
| | 850 | case CAPTURE_READY_9BIT: |
| | 851 | /* TODO */ |
| | 852 | sr_err("Not yet supported."); |
| | 853 | break; |
| | 854 | case CAPTURE_TIMEOUT: |
| | 855 | /* Doesn't matter, we'll try again next time. */ |
| | 856 | break; |
| | 857 | default: |
| | 858 | sr_dbg("Unknown capture state: %d.", capturestate); |
| | 859 | break; |
| | 860 | } |
| | 861 | |
| | 862 | return TRUE; |
| | 863 | } |
| | 864 | |
| | 865 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, |
| | 866 | void *cb_data) |
| | 867 | { |
| | 868 | const struct libusb_pollfd **lupfd; |
| | 869 | struct dev_context *devc; |
| | 870 | struct drv_context *drvc = di->priv; |
| | 871 | int i; |
| | 872 | |
| | 873 | if (sdi->status != SR_ST_ACTIVE) |
| | 874 | return SR_ERR; |
| | 875 | |
| | 876 | devc = sdi->priv; |
| | 877 | devc->cb_data = cb_data; |
| | 878 | |
| | 879 | if (configure_probes(sdi) != SR_OK) { |
| | 880 | sr_err("Failed to configure probes."); |
| | 881 | return SR_ERR; |
| | 882 | } |
| | 883 | |
| | 884 | if (dso_init(devc) != SR_OK) |
| | 885 | return SR_ERR; |
| | 886 | |
| | 887 | if (dso_capture_start(devc) != SR_OK) |
| | 888 | return SR_ERR; |
| | 889 | |
| | 890 | devc->dev_state = CAPTURE; |
| | 891 | lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx); |
| | 892 | for (i = 0; lupfd[i]; i++) |
| | 893 | sr_source_add(lupfd[i]->fd, lupfd[i]->events, TICK, |
| | 894 | handle_event, (void *)sdi); |
| | 895 | free(lupfd); |
| | 896 | |
| | 897 | /* Send header packet to the session bus. */ |
| | 898 | std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN); |
| | 899 | |
| | 900 | return SR_OK; |
| | 901 | } |
| | 902 | |
| | 903 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
| | 904 | { |
| | 905 | struct dev_context *devc; |
| | 906 | |
| | 907 | (void)cb_data; |
| | 908 | |
| | 909 | if (sdi->status != SR_ST_ACTIVE) |
| | 910 | return SR_ERR; |
| | 911 | |
| | 912 | devc = sdi->priv; |
| | 913 | devc->dev_state = STOPPING; |
| | 914 | |
| | 915 | return SR_OK; |
| | 916 | } |
| | 917 | |
| | 918 | SR_PRIV struct sr_dev_driver hantek_dso_driver_info = { |
| | 919 | .name = "hantek-dso", |
| | 920 | .longname = "Hantek DSO", |
| | 921 | .api_version = 1, |
| | 922 | .init = hw_init, |
| | 923 | .cleanup = hw_cleanup, |
| | 924 | .scan = hw_scan, |
| | 925 | .dev_list = hw_dev_list, |
| | 926 | .dev_clear = clear_instances, |
| | 927 | .config_get = NULL, |
| | 928 | .config_set = config_set, |
| | 929 | .config_list = config_list, |
| | 930 | .dev_open = hw_dev_open, |
| | 931 | .dev_close = hw_dev_close, |
| | 932 | .dev_acquisition_start = hw_dev_acquisition_start, |
| | 933 | .dev_acquisition_stop = hw_dev_acquisition_stop, |
| | 934 | .priv = NULL, |
| | 935 | }; |
projects / libsigrok.git / blame_incremental