| | 1 | /* |
| | 2 | * This file is part of the libsigrok 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 <config.h> |
| | 21 | #include <math.h> |
| | 22 | #include <stdio.h> |
| | 23 | #include <stdint.h> |
| | 24 | #include <stdlib.h> |
| | 25 | #include <sys/types.h> |
| | 26 | #include <sys/stat.h> |
| | 27 | #include <fcntl.h> |
| | 28 | #include <unistd.h> |
| | 29 | #include <string.h> |
| | 30 | #include <sys/time.h> |
| | 31 | #include <inttypes.h> |
| | 32 | #include <glib.h> |
| | 33 | #include <libusb.h> |
| | 34 | #include <libsigrok/libsigrok.h> |
| | 35 | #include "libsigrok-internal.h" |
| | 36 | #include "protocol.h" |
| | 37 | |
| | 38 | /* Max time in ms before we want to check on USB events */ |
| | 39 | /* TODO tune this properly */ |
| | 40 | #define TICK 1 |
| | 41 | |
| | 42 | #define NUM_TIMEBASE 10 |
| | 43 | #define NUM_VDIV 8 |
| | 44 | |
| | 45 | #define NUM_BUFFER_SIZES 2 |
| | 46 | |
| | 47 | static const uint32_t scanopts[] = { |
| | 48 | SR_CONF_CONN, |
| | 49 | }; |
| | 50 | |
| | 51 | static const uint32_t drvopts[] = { |
| | 52 | SR_CONF_OSCILLOSCOPE, |
| | 53 | }; |
| | 54 | |
| | 55 | static const uint32_t devopts[] = { |
| | 56 | SR_CONF_CONTINUOUS, |
| | 57 | SR_CONF_CONN | SR_CONF_GET, |
| | 58 | SR_CONF_LIMIT_FRAMES | SR_CONF_SET, |
| | 59 | SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
| | 60 | SR_CONF_NUM_HDIV | SR_CONF_GET, |
| | 61 | SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_GET | SR_CONF_SET, |
| | 62 | SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
| | 63 | SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET, |
| | 64 | SR_CONF_BUFFERSIZE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
| | 65 | SR_CONF_NUM_VDIV | SR_CONF_GET, |
| | 66 | }; |
| | 67 | |
| | 68 | static const uint32_t devopts_cg[] = { |
| | 69 | SR_CONF_VDIV | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
| | 70 | SR_CONF_COUPLING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
| | 71 | SR_CONF_FILTER | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, |
| | 72 | }; |
| | 73 | |
| | 74 | static const char *channel_names[] = { |
| | 75 | "CH1", "CH2", |
| | 76 | }; |
| | 77 | |
| | 78 | static const uint64_t buffersizes_32k[] = { |
| | 79 | (10 * 1024), (32 * 1024), |
| | 80 | }; |
| | 81 | static const uint64_t buffersizes_512k[] = { |
| | 82 | (10 * 1024), (512 * 1024), |
| | 83 | }; |
| | 84 | static const uint64_t buffersizes_14k[] = { |
| | 85 | (10 * 1024), (14 * 1024), |
| | 86 | }; |
| | 87 | |
| | 88 | static const struct dso_profile dev_profiles[] = { |
| | 89 | { 0x04b4, 0x2090, 0x04b5, 0x2090, |
| | 90 | "Hantek", "DSO-2090", |
| | 91 | buffersizes_32k, |
| | 92 | "hantek-dso-2090.fw" }, |
| | 93 | { 0x04b4, 0x2150, 0x04b5, 0x2150, |
| | 94 | "Hantek", "DSO-2150", |
| | 95 | buffersizes_32k, |
| | 96 | "hantek-dso-2150.fw" }, |
| | 97 | { 0x04b4, 0x2250, 0x04b5, 0x2250, |
| | 98 | "Hantek", "DSO-2250", |
| | 99 | buffersizes_512k, |
| | 100 | "hantek-dso-2250.fw" }, |
| | 101 | { 0x04b4, 0x5200, 0x04b5, 0x5200, |
| | 102 | "Hantek", "DSO-5200", |
| | 103 | buffersizes_14k, |
| | 104 | "hantek-dso-5200.fw" }, |
| | 105 | { 0x04b4, 0x520a, 0x04b5, 0x520a, |
| | 106 | "Hantek", "DSO-5200A", |
| | 107 | buffersizes_512k, |
| | 108 | "hantek-dso-5200A.fw" }, |
| | 109 | ALL_ZERO |
| | 110 | }; |
| | 111 | |
| | 112 | static const uint64_t timebases[][2] = { |
| | 113 | /* microseconds */ |
| | 114 | { 10, 1000000 }, |
| | 115 | { 20, 1000000 }, |
| | 116 | { 40, 1000000 }, |
| | 117 | { 100, 1000000 }, |
| | 118 | { 200, 1000000 }, |
| | 119 | { 400, 1000000 }, |
| | 120 | /* milliseconds */ |
| | 121 | { 1, 1000 }, |
| | 122 | { 2, 1000 }, |
| | 123 | { 4, 1000 }, |
| | 124 | { 10, 1000 }, |
| | 125 | { 20, 1000 }, |
| | 126 | { 40, 1000 }, |
| | 127 | { 100, 1000 }, |
| | 128 | { 200, 1000 }, |
| | 129 | { 400, 1000 }, |
| | 130 | }; |
| | 131 | |
| | 132 | static const uint64_t vdivs[][2] = { |
| | 133 | /* millivolts */ |
| | 134 | { 10, 1000 }, |
| | 135 | { 20, 1000 }, |
| | 136 | { 50, 1000 }, |
| | 137 | { 100, 1000 }, |
| | 138 | { 200, 1000 }, |
| | 139 | { 500, 1000 }, |
| | 140 | /* volts */ |
| | 141 | { 1, 1 }, |
| | 142 | { 2, 1 }, |
| | 143 | { 5, 1 }, |
| | 144 | }; |
| | 145 | |
| | 146 | static const char *trigger_sources[] = { |
| | 147 | "CH1", "CH2", "EXT", |
| | 148 | /* TODO: forced */ |
| | 149 | }; |
| | 150 | |
| | 151 | static const char *trigger_slopes[] = { |
| | 152 | "r", "f", |
| | 153 | }; |
| | 154 | |
| | 155 | static const char *coupling[] = { |
| | 156 | "AC", "DC", "GND", |
| | 157 | }; |
| | 158 | |
| | 159 | static struct sr_dev_inst *dso_dev_new(const struct dso_profile *prof) |
| | 160 | { |
| | 161 | struct sr_dev_inst *sdi; |
| | 162 | struct sr_channel *ch; |
| | 163 | struct sr_channel_group *cg; |
| | 164 | struct dev_context *devc; |
| | 165 | unsigned int i; |
| | 166 | |
| | 167 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); |
| | 168 | sdi->status = SR_ST_INITIALIZING; |
| | 169 | sdi->vendor = g_strdup(prof->vendor); |
| | 170 | sdi->model = g_strdup(prof->model); |
| | 171 | |
| | 172 | /* |
| | 173 | * Add only the real channels -- EXT isn't a source of data, only |
| | 174 | * a trigger source internal to the device. |
| | 175 | */ |
| | 176 | for (i = 0; i < ARRAY_SIZE(channel_names); i++) { |
| | 177 | ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel_names[i]); |
| | 178 | cg = g_malloc0(sizeof(struct sr_channel_group)); |
| | 179 | cg->name = g_strdup(channel_names[i]); |
| | 180 | cg->channels = g_slist_append(cg->channels, ch); |
| | 181 | sdi->channel_groups = g_slist_append(sdi->channel_groups, cg); |
| | 182 | } |
| | 183 | |
| | 184 | devc = g_malloc0(sizeof(struct dev_context)); |
| | 185 | devc->profile = prof; |
| | 186 | devc->dev_state = IDLE; |
| | 187 | devc->timebase = DEFAULT_TIMEBASE; |
| | 188 | devc->ch_enabled[0] = TRUE; |
| | 189 | devc->ch_enabled[1] = TRUE; |
| | 190 | devc->voltage[0] = DEFAULT_VOLTAGE; |
| | 191 | devc->voltage[1] = DEFAULT_VOLTAGE; |
| | 192 | devc->coupling[0] = DEFAULT_COUPLING; |
| | 193 | devc->coupling[1] = DEFAULT_COUPLING; |
| | 194 | devc->voffset_ch1 = DEFAULT_VERT_OFFSET; |
| | 195 | devc->voffset_ch2 = DEFAULT_VERT_OFFSET; |
| | 196 | devc->voffset_trigger = DEFAULT_VERT_TRIGGERPOS; |
| | 197 | devc->framesize = DEFAULT_FRAMESIZE; |
| | 198 | devc->triggerslope = SLOPE_POSITIVE; |
| | 199 | devc->triggersource = g_strdup(DEFAULT_TRIGGER_SOURCE); |
| | 200 | devc->triggerposition = DEFAULT_HORIZ_TRIGGERPOS; |
| | 201 | sdi->priv = devc; |
| | 202 | |
| | 203 | return sdi; |
| | 204 | } |
| | 205 | |
| | 206 | static int configure_channels(const struct sr_dev_inst *sdi) |
| | 207 | { |
| | 208 | struct dev_context *devc; |
| | 209 | struct sr_channel *ch; |
| | 210 | const GSList *l; |
| | 211 | int p; |
| | 212 | |
| | 213 | devc = sdi->priv; |
| | 214 | |
| | 215 | g_slist_free(devc->enabled_channels); |
| | 216 | devc->ch_enabled[0] = devc->ch_enabled[1] = FALSE; |
| | 217 | for (l = sdi->channels, p = 0; l; l = l->next, p++) { |
| | 218 | ch = l->data; |
| | 219 | if (p == 0) |
| | 220 | devc->ch_enabled[0] = ch->enabled; |
| | 221 | else |
| | 222 | devc->ch_enabled[1] = ch->enabled; |
| | 223 | if (ch->enabled) |
| | 224 | devc->enabled_channels = g_slist_append(devc->enabled_channels, ch); |
| | 225 | } |
| | 226 | |
| | 227 | return SR_OK; |
| | 228 | } |
| | 229 | |
| | 230 | static void clear_helper(struct dev_context *devc) |
| | 231 | { |
| | 232 | g_free(devc->triggersource); |
| | 233 | g_slist_free(devc->enabled_channels); |
| | 234 | } |
| | 235 | |
| | 236 | static int dev_clear(const struct sr_dev_driver *di) |
| | 237 | { |
| | 238 | return std_dev_clear_with_callback(di, (std_dev_clear_callback)clear_helper); |
| | 239 | } |
| | 240 | |
| | 241 | static GSList *scan(struct sr_dev_driver *di, GSList *options) |
| | 242 | { |
| | 243 | struct drv_context *drvc; |
| | 244 | struct dev_context *devc; |
| | 245 | struct sr_dev_inst *sdi; |
| | 246 | struct sr_usb_dev_inst *usb; |
| | 247 | struct sr_config *src; |
| | 248 | const struct dso_profile *prof; |
| | 249 | GSList *l, *devices, *conn_devices; |
| | 250 | struct libusb_device_descriptor des; |
| | 251 | libusb_device **devlist; |
| | 252 | int i, j; |
| | 253 | const char *conn; |
| | 254 | char connection_id[64]; |
| | 255 | |
| | 256 | drvc = di->context; |
| | 257 | |
| | 258 | devices = 0; |
| | 259 | |
| | 260 | conn = NULL; |
| | 261 | for (l = options; l; l = l->next) { |
| | 262 | src = l->data; |
| | 263 | if (src->key == SR_CONF_CONN) { |
| | 264 | conn = g_variant_get_string(src->data, NULL); |
| | 265 | break; |
| | 266 | } |
| | 267 | } |
| | 268 | if (conn) |
| | 269 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); |
| | 270 | else |
| | 271 | conn_devices = NULL; |
| | 272 | |
| | 273 | /* Find all Hantek DSO devices and upload firmware to all of them. */ |
| | 274 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
| | 275 | for (i = 0; devlist[i]; i++) { |
| | 276 | if (conn) { |
| | 277 | usb = NULL; |
| | 278 | for (l = conn_devices; l; l = l->next) { |
| | 279 | usb = l->data; |
| | 280 | if (usb->bus == libusb_get_bus_number(devlist[i]) |
| | 281 | && usb->address == libusb_get_device_address(devlist[i])) |
| | 282 | break; |
| | 283 | } |
| | 284 | if (!l) |
| | 285 | /* This device matched none of the ones that |
| | 286 | * matched the conn specification. */ |
| | 287 | continue; |
| | 288 | } |
| | 289 | |
| | 290 | libusb_get_device_descriptor(devlist[i], &des); |
| | 291 | |
| | 292 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); |
| | 293 | |
| | 294 | prof = NULL; |
| | 295 | for (j = 0; dev_profiles[j].orig_vid; j++) { |
| | 296 | if (des.idVendor == dev_profiles[j].orig_vid |
| | 297 | && des.idProduct == dev_profiles[j].orig_pid) { |
| | 298 | /* Device matches the pre-firmware profile. */ |
| | 299 | prof = &dev_profiles[j]; |
| | 300 | sr_dbg("Found a %s %s.", prof->vendor, prof->model); |
| | 301 | sdi = dso_dev_new(prof); |
| | 302 | sdi->connection_id = g_strdup(connection_id); |
| | 303 | devices = g_slist_append(devices, sdi); |
| | 304 | devc = sdi->priv; |
| | 305 | if (ezusb_upload_firmware(drvc->sr_ctx, devlist[i], |
| | 306 | USB_CONFIGURATION, prof->firmware) == SR_OK) |
| | 307 | /* Remember when the firmware on this device was updated */ |
| | 308 | devc->fw_updated = g_get_monotonic_time(); |
| | 309 | else |
| | 310 | sr_err("Firmware upload failed"); |
| | 311 | /* Dummy USB address of 0xff will get overwritten later. */ |
| | 312 | sdi->conn = sr_usb_dev_inst_new( |
| | 313 | libusb_get_bus_number(devlist[i]), 0xff, NULL); |
| | 314 | break; |
| | 315 | } else if (des.idVendor == dev_profiles[j].fw_vid |
| | 316 | && des.idProduct == dev_profiles[j].fw_pid) { |
| | 317 | /* Device matches the post-firmware profile. */ |
| | 318 | prof = &dev_profiles[j]; |
| | 319 | sr_dbg("Found a %s %s.", prof->vendor, prof->model); |
| | 320 | sdi = dso_dev_new(prof); |
| | 321 | sdi->connection_id = g_strdup(connection_id); |
| | 322 | sdi->status = SR_ST_INACTIVE; |
| | 323 | devices = g_slist_append(devices, sdi); |
| | 324 | sdi->inst_type = SR_INST_USB; |
| | 325 | sdi->conn = sr_usb_dev_inst_new( |
| | 326 | libusb_get_bus_number(devlist[i]), |
| | 327 | libusb_get_device_address(devlist[i]), NULL); |
| | 328 | break; |
| | 329 | } |
| | 330 | } |
| | 331 | if (!prof) |
| | 332 | /* not a supported VID/PID */ |
| | 333 | continue; |
| | 334 | } |
| | 335 | libusb_free_device_list(devlist, 1); |
| | 336 | |
| | 337 | return std_scan_complete(di, devices); |
| | 338 | } |
| | 339 | |
| | 340 | static int dev_open(struct sr_dev_inst *sdi) |
| | 341 | { |
| | 342 | struct dev_context *devc; |
| | 343 | struct sr_usb_dev_inst *usb; |
| | 344 | int64_t timediff_us, timediff_ms; |
| | 345 | int err; |
| | 346 | |
| | 347 | devc = sdi->priv; |
| | 348 | usb = sdi->conn; |
| | 349 | |
| | 350 | /* |
| | 351 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS |
| | 352 | * for the FX2 to renumerate. |
| | 353 | */ |
| | 354 | err = SR_ERR; |
| | 355 | if (devc->fw_updated > 0) { |
| | 356 | sr_info("Waiting for device to reset."); |
| | 357 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ |
| | 358 | g_usleep(300 * 1000); |
| | 359 | timediff_ms = 0; |
| | 360 | while (timediff_ms < MAX_RENUM_DELAY_MS) { |
| | 361 | if ((err = dso_open(sdi)) == SR_OK) |
| | 362 | break; |
| | 363 | g_usleep(100 * 1000); |
| | 364 | timediff_us = g_get_monotonic_time() - devc->fw_updated; |
| | 365 | timediff_ms = timediff_us / 1000; |
| | 366 | sr_spew("Waited %" PRIi64 " ms.", timediff_ms); |
| | 367 | } |
| | 368 | sr_info("Device came back after %" PRIi64 " ms.", timediff_ms); |
| | 369 | } else { |
| | 370 | err = dso_open(sdi); |
| | 371 | } |
| | 372 | |
| | 373 | if (err != SR_OK) { |
| | 374 | sr_err("Unable to open device."); |
| | 375 | return SR_ERR; |
| | 376 | } |
| | 377 | |
| | 378 | err = libusb_claim_interface(usb->devhdl, USB_INTERFACE); |
| | 379 | if (err != 0) { |
| | 380 | sr_err("Unable to claim interface: %s.", |
| | 381 | libusb_error_name(err)); |
| | 382 | return SR_ERR; |
| | 383 | } |
| | 384 | |
| | 385 | return SR_OK; |
| | 386 | } |
| | 387 | |
| | 388 | static int dev_close(struct sr_dev_inst *sdi) |
| | 389 | { |
| | 390 | dso_close(sdi); |
| | 391 | |
| | 392 | return SR_OK; |
| | 393 | } |
| | 394 | |
| | 395 | static int config_get(uint32_t key, GVariant **data, |
| | 396 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) |
| | 397 | { |
| | 398 | struct dev_context *devc; |
| | 399 | struct sr_usb_dev_inst *usb; |
| | 400 | const char *s; |
| | 401 | const uint64_t *vdiv; |
| | 402 | int ch_idx; |
| | 403 | |
| | 404 | switch (key) { |
| | 405 | case SR_CONF_NUM_HDIV: |
| | 406 | *data = g_variant_new_int32(NUM_TIMEBASE); |
| | 407 | break; |
| | 408 | case SR_CONF_NUM_VDIV: |
| | 409 | *data = g_variant_new_int32(NUM_VDIV); |
| | 410 | break; |
| | 411 | } |
| | 412 | |
| | 413 | if (!sdi) |
| | 414 | return SR_ERR_ARG; |
| | 415 | |
| | 416 | devc = sdi->priv; |
| | 417 | if (!cg) { |
| | 418 | switch (key) { |
| | 419 | case SR_CONF_CONN: |
| | 420 | if (!sdi->conn) |
| | 421 | return SR_ERR_ARG; |
| | 422 | usb = sdi->conn; |
| | 423 | if (usb->address == 255) |
| | 424 | /* Device still needs to re-enumerate after firmware |
| | 425 | * upload, so we don't know its (future) address. */ |
| | 426 | return SR_ERR; |
| | 427 | *data = g_variant_new_printf("%d.%d", usb->bus, usb->address); |
| | 428 | break; |
| | 429 | case SR_CONF_TIMEBASE: |
| | 430 | *data = g_variant_new("(tt)", timebases[devc->timebase][0], |
| | 431 | timebases[devc->timebase][1]); |
| | 432 | break; |
| | 433 | case SR_CONF_BUFFERSIZE: |
| | 434 | *data = g_variant_new_uint64(devc->framesize); |
| | 435 | break; |
| | 436 | case SR_CONF_TRIGGER_SOURCE: |
| | 437 | *data = g_variant_new_string(devc->triggersource); |
| | 438 | break; |
| | 439 | case SR_CONF_TRIGGER_SLOPE: |
| | 440 | s = (devc->triggerslope == SLOPE_POSITIVE) ? "r" : "f"; |
| | 441 | *data = g_variant_new_string(s); |
| | 442 | break; |
| | 443 | case SR_CONF_HORIZ_TRIGGERPOS: |
| | 444 | *data = g_variant_new_double(devc->triggerposition); |
| | 445 | break; |
| | 446 | default: |
| | 447 | return SR_ERR_NA; |
| | 448 | } |
| | 449 | } else { |
| | 450 | if (sdi->channel_groups->data == cg) |
| | 451 | ch_idx = 0; |
| | 452 | else if (sdi->channel_groups->next->data == cg) |
| | 453 | ch_idx = 1; |
| | 454 | else |
| | 455 | return SR_ERR_ARG; |
| | 456 | switch (key) { |
| | 457 | case SR_CONF_FILTER: |
| | 458 | *data = g_variant_new_boolean(devc->filter[ch_idx]); |
| | 459 | break; |
| | 460 | case SR_CONF_VDIV: |
| | 461 | vdiv = vdivs[devc->voltage[ch_idx]]; |
| | 462 | *data = g_variant_new("(tt)", vdiv[0], vdiv[1]); |
| | 463 | break; |
| | 464 | case SR_CONF_COUPLING: |
| | 465 | *data = g_variant_new_string(coupling[devc->coupling[ch_idx]]); |
| | 466 | break; |
| | 467 | } |
| | 468 | } |
| | 469 | |
| | 470 | return SR_OK; |
| | 471 | } |
| | 472 | |
| | 473 | static int config_set(uint32_t key, GVariant *data, |
| | 474 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) |
| | 475 | { |
| | 476 | struct dev_context *devc; |
| | 477 | double tmp_double; |
| | 478 | int ch_idx, idx; |
| | 479 | |
| | 480 | devc = sdi->priv; |
| | 481 | if (!cg) { |
| | 482 | switch (key) { |
| | 483 | case SR_CONF_LIMIT_FRAMES: |
| | 484 | devc->limit_frames = g_variant_get_uint64(data); |
| | 485 | break; |
| | 486 | case SR_CONF_TRIGGER_SLOPE: |
| | 487 | if ((idx = std_str_idx(data, ARRAY_AND_SIZE(trigger_slopes))) < 0) |
| | 488 | return SR_ERR_ARG; |
| | 489 | devc->triggerslope = idx; |
| | 490 | break; |
| | 491 | case SR_CONF_HORIZ_TRIGGERPOS: |
| | 492 | tmp_double = g_variant_get_double(data); |
| | 493 | if (tmp_double < 0.0 || tmp_double > 1.0) { |
| | 494 | sr_err("Trigger position should be between 0.0 and 1.0."); |
| | 495 | return SR_ERR_ARG; |
| | 496 | } else |
| | 497 | devc->triggerposition = tmp_double; |
| | 498 | break; |
| | 499 | case SR_CONF_BUFFERSIZE: |
| | 500 | if ((idx = std_u64_idx(data, devc->profile->buffersizes, NUM_BUFFER_SIZES)) < 0) |
| | 501 | return SR_ERR_ARG; |
| | 502 | devc->framesize = devc->profile->buffersizes[idx]; |
| | 503 | break; |
| | 504 | case SR_CONF_TIMEBASE: |
| | 505 | if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(timebases))) < 0) |
| | 506 | return SR_ERR_ARG; |
| | 507 | devc->timebase = idx; |
| | 508 | break; |
| | 509 | case SR_CONF_TRIGGER_SOURCE: |
| | 510 | if ((idx = std_str_idx(data, ARRAY_AND_SIZE(trigger_sources))) < 0) |
| | 511 | return SR_ERR_ARG; |
| | 512 | devc->triggersource = g_strdup(trigger_sources[idx]); |
| | 513 | break; |
| | 514 | default: |
| | 515 | return SR_ERR_NA; |
| | 516 | } |
| | 517 | } else { |
| | 518 | if (sdi->channel_groups->data == cg) |
| | 519 | ch_idx = 0; |
| | 520 | else if (sdi->channel_groups->next->data == cg) |
| | 521 | ch_idx = 1; |
| | 522 | else |
| | 523 | return SR_ERR_ARG; |
| | 524 | switch (key) { |
| | 525 | case SR_CONF_FILTER: |
| | 526 | devc->filter[ch_idx] = g_variant_get_boolean(data); |
| | 527 | break; |
| | 528 | case SR_CONF_VDIV: |
| | 529 | if ((idx = std_u64_tuple_idx(data, ARRAY_AND_SIZE(vdivs))) < 0) |
| | 530 | return SR_ERR_ARG; |
| | 531 | devc->voltage[ch_idx] = idx; |
| | 532 | break; |
| | 533 | case SR_CONF_COUPLING: |
| | 534 | if ((idx = std_str_idx(data, ARRAY_AND_SIZE(coupling))) < 0) |
| | 535 | return SR_ERR_ARG; |
| | 536 | devc->coupling[ch_idx] = idx; |
| | 537 | break; |
| | 538 | default: |
| | 539 | return SR_ERR_NA; |
| | 540 | } |
| | 541 | } |
| | 542 | |
| | 543 | return SR_OK; |
| | 544 | } |
| | 545 | |
| | 546 | static int config_list(uint32_t key, GVariant **data, |
| | 547 | const struct sr_dev_inst *sdi, const struct sr_channel_group *cg) |
| | 548 | { |
| | 549 | struct dev_context *devc; |
| | 550 | |
| | 551 | if (!cg) { |
| | 552 | switch (key) { |
| | 553 | case SR_CONF_SCAN_OPTIONS: |
| | 554 | case SR_CONF_DEVICE_OPTIONS: |
| | 555 | return STD_CONFIG_LIST(key, data, sdi, cg, scanopts, drvopts, devopts); |
| | 556 | case SR_CONF_BUFFERSIZE: |
| | 557 | if (!sdi) |
| | 558 | return SR_ERR_ARG; |
| | 559 | devc = sdi->priv; |
| | 560 | *data = std_gvar_array_u64(devc->profile->buffersizes, NUM_BUFFER_SIZES); |
| | 561 | break; |
| | 562 | case SR_CONF_TIMEBASE: |
| | 563 | *data = std_gvar_tuple_array(ARRAY_AND_SIZE(timebases)); |
| | 564 | break; |
| | 565 | case SR_CONF_TRIGGER_SOURCE: |
| | 566 | *data = g_variant_new_strv(ARRAY_AND_SIZE(trigger_sources)); |
| | 567 | break; |
| | 568 | case SR_CONF_TRIGGER_SLOPE: |
| | 569 | *data = g_variant_new_strv(ARRAY_AND_SIZE(trigger_slopes)); |
| | 570 | break; |
| | 571 | default: |
| | 572 | return SR_ERR_NA; |
| | 573 | } |
| | 574 | } else { |
| | 575 | switch (key) { |
| | 576 | case SR_CONF_DEVICE_OPTIONS: |
| | 577 | *data = std_gvar_array_u32(ARRAY_AND_SIZE(devopts_cg)); |
| | 578 | break; |
| | 579 | case SR_CONF_COUPLING: |
| | 580 | *data = g_variant_new_strv(ARRAY_AND_SIZE(coupling)); |
| | 581 | break; |
| | 582 | case SR_CONF_VDIV: |
| | 583 | *data = std_gvar_tuple_array(ARRAY_AND_SIZE(vdivs)); |
| | 584 | break; |
| | 585 | default: |
| | 586 | return SR_ERR_NA; |
| | 587 | } |
| | 588 | } |
| | 589 | |
| | 590 | return SR_OK; |
| | 591 | } |
| | 592 | |
| | 593 | static void send_chunk(struct sr_dev_inst *sdi, unsigned char *buf, |
| | 594 | int num_samples) |
| | 595 | { |
| | 596 | struct sr_datafeed_packet packet; |
| | 597 | struct sr_datafeed_analog analog; |
| | 598 | struct sr_analog_encoding encoding; |
| | 599 | struct sr_analog_meaning meaning; |
| | 600 | struct sr_analog_spec spec; |
| | 601 | struct dev_context *devc = sdi->priv; |
| | 602 | GSList *channels = devc->enabled_channels; |
| | 603 | |
| | 604 | packet.type = SR_DF_ANALOG; |
| | 605 | packet.payload = &analog; |
| | 606 | /* TODO: support for 5xxx series 9-bit samples */ |
| | 607 | sr_analog_init(&analog, &encoding, &meaning, &spec, 0); |
| | 608 | analog.num_samples = num_samples; |
| | 609 | analog.meaning->mq = SR_MQ_VOLTAGE; |
| | 610 | analog.meaning->unit = SR_UNIT_VOLT; |
| | 611 | analog.meaning->mqflags = 0; |
| | 612 | /* TODO: Check malloc return value. */ |
| | 613 | analog.data = g_try_malloc(num_samples * sizeof(float)); |
| | 614 | |
| | 615 | for (int ch = 0; ch < NUM_CHANNELS; ch++) { |
| | 616 | if (!devc->ch_enabled[ch]) |
| | 617 | continue; |
| | 618 | |
| | 619 | float range = ((float)vdivs[devc->voltage[ch]][0] / vdivs[devc->voltage[ch]][1]) * 8; |
| | 620 | float vdivlog = log10f(range / 255); |
| | 621 | int digits = -(int)vdivlog + (vdivlog < 0.0); |
| | 622 | analog.encoding->digits = digits; |
| | 623 | analog.spec->spec_digits = digits; |
| | 624 | analog.meaning->channels = g_slist_append(NULL, channels->data); |
| | 625 | |
| | 626 | for (int i = 0; i < num_samples; i++) { |
| | 627 | /* |
| | 628 | * The device always sends data for both channels. If a channel |
| | 629 | * is disabled, it contains a copy of the enabled channel's |
| | 630 | * data. However, we only send the requested channels to |
| | 631 | * the bus. |
| | 632 | * |
| | 633 | * Voltage values are encoded as a value 0-255 (0-512 on the |
| | 634 | * DSO-5200*), where the value is a point in the range |
| | 635 | * represented by the vdiv setting. There are 8 vertical divs, |
| | 636 | * so e.g. 500mV/div represents 4V peak-to-peak where 0 = -2V |
| | 637 | * and 255 = +2V. |
| | 638 | */ |
| | 639 | /* TODO: Support for DSO-5xxx series 9-bit samples. */ |
| | 640 | ((float *)analog.data)[i] = range / 255 * *(buf + i * 2 + 1 - ch) - range / 2; |
| | 641 | } |
| | 642 | sr_session_send(sdi, &packet); |
| | 643 | g_slist_free(analog.meaning->channels); |
| | 644 | |
| | 645 | channels = channels->next; |
| | 646 | } |
| | 647 | g_free(analog.data); |
| | 648 | } |
| | 649 | |
| | 650 | /* |
| | 651 | * Called by libusb (as triggered by handle_event()) when a transfer comes in. |
| | 652 | * Only channel data comes in asynchronously, and all transfers for this are |
| | 653 | * queued up beforehand, so this just needs to chuck the incoming data onto |
| | 654 | * the libsigrok session bus. |
| | 655 | */ |
| | 656 | static void LIBUSB_CALL receive_transfer(struct libusb_transfer *transfer) |
| | 657 | { |
| | 658 | struct sr_datafeed_packet packet; |
| | 659 | struct sr_dev_inst *sdi; |
| | 660 | struct dev_context *devc; |
| | 661 | int num_samples, pre; |
| | 662 | |
| | 663 | sdi = transfer->user_data; |
| | 664 | devc = sdi->priv; |
| | 665 | sr_spew("receive_transfer(): status %s received %d bytes.", |
| | 666 | libusb_error_name(transfer->status), transfer->actual_length); |
| | 667 | |
| | 668 | if (transfer->actual_length == 0) |
| | 669 | /* Nothing to send to the bus. */ |
| | 670 | return; |
| | 671 | |
| | 672 | num_samples = transfer->actual_length / 2; |
| | 673 | |
| | 674 | sr_spew("Got %d-%d/%d samples in frame.", devc->samp_received + 1, |
| | 675 | devc->samp_received + num_samples, devc->framesize); |
| | 676 | |
| | 677 | /* |
| | 678 | * The device always sends a full frame, but the beginning of the frame |
| | 679 | * doesn't represent the trigger point. The offset at which the trigger |
| | 680 | * happened came in with the capture state, so we need to start sending |
| | 681 | * from there up the session bus. The samples in the frame buffer |
| | 682 | * before that trigger point came after the end of the device's frame |
| | 683 | * buffer was reached, and it wrapped around to overwrite up until the |
| | 684 | * trigger point. |
| | 685 | */ |
| | 686 | if (devc->samp_received < devc->trigger_offset) { |
| | 687 | /* Trigger point not yet reached. */ |
| | 688 | if (devc->samp_received + num_samples < devc->trigger_offset) { |
| | 689 | /* The entire chunk is before the trigger point. */ |
| | 690 | memcpy(devc->framebuf + devc->samp_buffered * 2, |
| | 691 | transfer->buffer, num_samples * 2); |
| | 692 | devc->samp_buffered += num_samples; |
| | 693 | } else { |
| | 694 | /* |
| | 695 | * This chunk hits or overruns the trigger point. |
| | 696 | * Store the part before the trigger fired, and |
| | 697 | * send the rest up to the session bus. |
| | 698 | */ |
| | 699 | pre = devc->trigger_offset - devc->samp_received; |
| | 700 | memcpy(devc->framebuf + devc->samp_buffered * 2, |
| | 701 | transfer->buffer, pre * 2); |
| | 702 | devc->samp_buffered += pre; |
| | 703 | |
| | 704 | /* The rest of this chunk starts with the trigger point. */ |
| | 705 | sr_dbg("Reached trigger point, %d samples buffered.", |
| | 706 | devc->samp_buffered); |
| | 707 | |
| | 708 | /* Avoid the corner case where the chunk ended at |
| | 709 | * exactly the trigger point. */ |
| | 710 | if (num_samples > pre) |
| | 711 | send_chunk(sdi, transfer->buffer + pre * 2, |
| | 712 | num_samples - pre); |
| | 713 | } |
| | 714 | } else { |
| | 715 | /* Already past the trigger point, just send it all out. */ |
| | 716 | send_chunk(sdi, transfer->buffer, num_samples); |
| | 717 | } |
| | 718 | |
| | 719 | devc->samp_received += num_samples; |
| | 720 | |
| | 721 | /* Everything in this transfer was either copied to the buffer or |
| | 722 | * sent to the session bus. */ |
| | 723 | g_free(transfer->buffer); |
| | 724 | libusb_free_transfer(transfer); |
| | 725 | |
| | 726 | if (devc->samp_received >= devc->framesize) { |
| | 727 | /* That was the last chunk in this frame. Send the buffered |
| | 728 | * pre-trigger samples out now, in one big chunk. */ |
| | 729 | sr_dbg("End of frame, sending %d pre-trigger buffered samples.", |
| | 730 | devc->samp_buffered); |
| | 731 | send_chunk(sdi, devc->framebuf, devc->samp_buffered); |
| | 732 | |
| | 733 | /* Mark the end of this frame. */ |
| | 734 | packet.type = SR_DF_FRAME_END; |
| | 735 | sr_session_send(sdi, &packet); |
| | 736 | |
| | 737 | if (devc->limit_frames && ++devc->num_frames == devc->limit_frames) { |
| | 738 | /* Terminate session */ |
| | 739 | devc->dev_state = STOPPING; |
| | 740 | } else { |
| | 741 | devc->dev_state = NEW_CAPTURE; |
| | 742 | } |
| | 743 | } |
| | 744 | } |
| | 745 | |
| | 746 | static int handle_event(int fd, int revents, void *cb_data) |
| | 747 | { |
| | 748 | const struct sr_dev_inst *sdi; |
| | 749 | struct sr_datafeed_packet packet; |
| | 750 | struct timeval tv; |
| | 751 | struct sr_dev_driver *di; |
| | 752 | struct dev_context *devc; |
| | 753 | struct drv_context *drvc; |
| | 754 | int num_channels; |
| | 755 | uint32_t trigger_offset; |
| | 756 | uint8_t capturestate; |
| | 757 | |
| | 758 | (void)fd; |
| | 759 | (void)revents; |
| | 760 | |
| | 761 | sdi = cb_data; |
| | 762 | di = sdi->driver; |
| | 763 | drvc = di->context; |
| | 764 | devc = sdi->priv; |
| | 765 | if (devc->dev_state == STOPPING) { |
| | 766 | /* We've been told to wind up the acquisition. */ |
| | 767 | sr_dbg("Stopping acquisition."); |
| | 768 | /* |
| | 769 | * TODO: Doesn't really cancel pending transfers so they might |
| | 770 | * come in after SR_DF_END is sent. |
| | 771 | */ |
| | 772 | usb_source_remove(sdi->session, drvc->sr_ctx); |
| | 773 | |
| | 774 | std_session_send_df_end(sdi); |
| | 775 | |
| | 776 | devc->dev_state = IDLE; |
| | 777 | |
| | 778 | return TRUE; |
| | 779 | } |
| | 780 | |
| | 781 | /* Always handle pending libusb events. */ |
| | 782 | tv.tv_sec = tv.tv_usec = 0; |
| | 783 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); |
| | 784 | |
| | 785 | /* TODO: ugh */ |
| | 786 | if (devc->dev_state == NEW_CAPTURE) { |
| | 787 | if (dso_capture_start(sdi) != SR_OK) |
| | 788 | return TRUE; |
| | 789 | if (dso_enable_trigger(sdi) != SR_OK) |
| | 790 | return TRUE; |
| | 791 | // if (dso_force_trigger(sdi) != SR_OK) |
| | 792 | // return TRUE; |
| | 793 | sr_dbg("Successfully requested next chunk."); |
| | 794 | devc->dev_state = CAPTURE; |
| | 795 | return TRUE; |
| | 796 | } |
| | 797 | if (devc->dev_state != CAPTURE) |
| | 798 | return TRUE; |
| | 799 | |
| | 800 | if ((dso_get_capturestate(sdi, &capturestate, &trigger_offset)) != SR_OK) |
| | 801 | return TRUE; |
| | 802 | |
| | 803 | sr_dbg("Capturestate %d.", capturestate); |
| | 804 | sr_dbg("Trigger offset 0x%.6x.", trigger_offset); |
| | 805 | switch (capturestate) { |
| | 806 | case CAPTURE_EMPTY: |
| | 807 | if (++devc->capture_empty_count >= MAX_CAPTURE_EMPTY) { |
| | 808 | devc->capture_empty_count = 0; |
| | 809 | if (dso_capture_start(sdi) != SR_OK) |
| | 810 | break; |
| | 811 | if (dso_enable_trigger(sdi) != SR_OK) |
| | 812 | break; |
| | 813 | // if (dso_force_trigger(sdi) != SR_OK) |
| | 814 | // break; |
| | 815 | sr_dbg("Successfully requested next chunk."); |
| | 816 | } |
| | 817 | break; |
| | 818 | case CAPTURE_FILLING: |
| | 819 | /* No data yet. */ |
| | 820 | break; |
| | 821 | case CAPTURE_READY_8BIT: |
| | 822 | /* Remember where in the captured frame the trigger is. */ |
| | 823 | devc->trigger_offset = trigger_offset; |
| | 824 | |
| | 825 | num_channels = (devc->ch_enabled[0] && devc->ch_enabled[1]) ? 2 : 1; |
| | 826 | devc->framebuf = g_malloc(devc->framesize * num_channels * 2); |
| | 827 | devc->samp_buffered = devc->samp_received = 0; |
| | 828 | |
| | 829 | /* Tell the scope to send us the first frame. */ |
| | 830 | if (dso_get_channeldata(sdi, receive_transfer) != SR_OK) |
| | 831 | break; |
| | 832 | |
| | 833 | /* |
| | 834 | * Don't hit the state machine again until we're done fetching |
| | 835 | * the data we just told the scope to send. |
| | 836 | */ |
| | 837 | devc->dev_state = FETCH_DATA; |
| | 838 | |
| | 839 | /* Tell the frontend a new frame is on the way. */ |
| | 840 | packet.type = SR_DF_FRAME_BEGIN; |
| | 841 | sr_session_send(sdi, &packet); |
| | 842 | break; |
| | 843 | case CAPTURE_READY_9BIT: |
| | 844 | /* TODO */ |
| | 845 | sr_err("Not yet supported."); |
| | 846 | break; |
| | 847 | case CAPTURE_TIMEOUT: |
| | 848 | /* Doesn't matter, we'll try again next time. */ |
| | 849 | break; |
| | 850 | default: |
| | 851 | sr_dbg("Unknown capture state: %d.", capturestate); |
| | 852 | break; |
| | 853 | } |
| | 854 | |
| | 855 | return TRUE; |
| | 856 | } |
| | 857 | |
| | 858 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) |
| | 859 | { |
| | 860 | struct dev_context *devc; |
| | 861 | struct sr_dev_driver *di = sdi->driver; |
| | 862 | struct drv_context *drvc = di->context; |
| | 863 | |
| | 864 | devc = sdi->priv; |
| | 865 | |
| | 866 | if (configure_channels(sdi) != SR_OK) { |
| | 867 | sr_err("Failed to configure channels."); |
| | 868 | return SR_ERR; |
| | 869 | } |
| | 870 | |
| | 871 | if (dso_init(sdi) != SR_OK) |
| | 872 | return SR_ERR; |
| | 873 | |
| | 874 | if (dso_capture_start(sdi) != SR_OK) |
| | 875 | return SR_ERR; |
| | 876 | |
| | 877 | devc->dev_state = CAPTURE; |
| | 878 | usb_source_add(sdi->session, drvc->sr_ctx, TICK, handle_event, (void *)sdi); |
| | 879 | |
| | 880 | std_session_send_df_header(sdi); |
| | 881 | |
| | 882 | return SR_OK; |
| | 883 | } |
| | 884 | |
| | 885 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) |
| | 886 | { |
| | 887 | struct dev_context *devc; |
| | 888 | |
| | 889 | devc = sdi->priv; |
| | 890 | devc->dev_state = STOPPING; |
| | 891 | |
| | 892 | return SR_OK; |
| | 893 | } |
| | 894 | |
| | 895 | static struct sr_dev_driver hantek_dso_driver_info = { |
| | 896 | .name = "hantek-dso", |
| | 897 | .longname = "Hantek DSO", |
| | 898 | .api_version = 1, |
| | 899 | .init = std_init, |
| | 900 | .cleanup = std_cleanup, |
| | 901 | .scan = scan, |
| | 902 | .dev_list = std_dev_list, |
| | 903 | .dev_clear = dev_clear, |
| | 904 | .config_get = config_get, |
| | 905 | .config_set = config_set, |
| | 906 | .config_list = config_list, |
| | 907 | .dev_open = dev_open, |
| | 908 | .dev_close = dev_close, |
| | 909 | .dev_acquisition_start = dev_acquisition_start, |
| | 910 | .dev_acquisition_stop = dev_acquisition_stop, |
| | 911 | .context = NULL, |
| | 912 | }; |
| | 913 | SR_REGISTER_DEV_DRIVER(hantek_dso_driver_info); |
projects / libsigrok.git / blame_incremental