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3b533202 BV |
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> | |
3b533202 BV |
30 | #include <glib.h> |
31 | #include <libusb.h> | |
45c59c8b BV |
32 | #include "libsigrok.h" |
33 | #include "libsigrok-internal.h" | |
3b533202 BV |
34 | #include "config.h" |
35 | #include "dso.h" | |
36 | ||
37 | ||
fc8fe3e3 BV |
38 | /* Max time in ms before we want to check on USB events */ |
39 | /* TODO tune this properly */ | |
3b533202 BV |
40 | #define TICK 1 |
41 | ||
62bb8840 | 42 | static const int hwcaps[] = { |
3b533202 | 43 | SR_HWCAP_OSCILLOSCOPE, |
ae88b97b | 44 | SR_HWCAP_LIMIT_SAMPLES, |
3b533202 | 45 | SR_HWCAP_CONTINUOUS, |
a370ef19 BV |
46 | SR_HWCAP_TIMEBASE, |
47 | SR_HWCAP_BUFFERSIZE, | |
48 | SR_HWCAP_TRIGGER_SOURCE, | |
49 | SR_HWCAP_TRIGGER_SLOPE, | |
50 | SR_HWCAP_HORIZ_TRIGGERPOS, | |
ebb781a6 | 51 | SR_HWCAP_FILTER, |
313deed2 | 52 | SR_HWCAP_VDIV, |
4a090d72 | 53 | SR_HWCAP_COUPLING, |
3b533202 BV |
54 | 0, |
55 | }; | |
56 | ||
57 | static const char *probe_names[] = { | |
58 | "CH1", | |
59 | "CH2", | |
60 | NULL, | |
61 | }; | |
62 | ||
62bb8840 | 63 | static const struct dso_profile dev_profiles[] = { |
88a13f30 | 64 | { 0x04b4, 0x2090, 0x04b5, 0x2090, |
3b533202 | 65 | "Hantek", "DSO-2090", |
88a13f30 BV |
66 | FIRMWARE_DIR "/hantek-dso-2xxx.fw" }, |
67 | { 0x04b4, 0x2150, 0x04b5, 0x2150, | |
68 | "Hantek", "DSO-2150", | |
69 | FIRMWARE_DIR "/hantek-dso-2xxx.fw" }, | |
70 | { 0x04b4, 0x2250, 0x04b5, 0x2250, | |
71 | "Hantek", "DSO-2250", | |
72 | FIRMWARE_DIR "/hantek-dso-2xxx.fw" }, | |
73 | { 0x04b4, 0x5200, 0x04b5, 0x5200, | |
74 | "Hantek", "DSO-5200", | |
75 | FIRMWARE_DIR "/hantek-dso-5xxx.fw" }, | |
76 | { 0x04b4, 0x520a, 0x04b5, 0x520a, | |
77 | "Hantek", "DSO-5200A", | |
78 | FIRMWARE_DIR "/hantek-dso-5xxx.fw" }, | |
79 | { 0, 0, 0, 0, 0, 0, 0 }, | |
3b533202 BV |
80 | }; |
81 | ||
62bb8840 | 82 | static const uint64_t buffersizes[] = { |
a370ef19 BV |
83 | 10240, |
84 | 32768, | |
85 | /* TODO: 65535 */ | |
62bb8840 | 86 | 0, |
a370ef19 BV |
87 | }; |
88 | ||
62bb8840 | 89 | static const struct sr_rational timebases[] = { |
a370ef19 BV |
90 | /* microseconds */ |
91 | { 10, 1000000 }, | |
92 | { 20, 1000000 }, | |
93 | { 40, 1000000 }, | |
94 | { 100, 1000000 }, | |
95 | { 200, 1000000 }, | |
96 | { 400, 1000000 }, | |
97 | /* milliseconds */ | |
98 | { 1, 1000 }, | |
99 | { 2, 1000 }, | |
100 | { 4, 1000 }, | |
101 | { 10, 1000 }, | |
102 | { 20, 1000 }, | |
103 | { 40, 1000 }, | |
104 | { 100, 1000 }, | |
105 | { 200, 1000 }, | |
106 | { 400, 1000 }, | |
62bb8840 | 107 | { 0, 0}, |
a370ef19 BV |
108 | }; |
109 | ||
62bb8840 | 110 | static const struct sr_rational vdivs[] = { |
313deed2 BV |
111 | /* millivolts */ |
112 | { 10, 1000 }, | |
113 | { 20, 1000 }, | |
114 | { 50, 1000 }, | |
115 | { 100, 1000 }, | |
116 | { 200, 1000 }, | |
117 | { 500, 1000 }, | |
118 | /* volts */ | |
119 | { 1, 1 }, | |
120 | { 2, 1 }, | |
121 | { 5, 1 }, | |
62bb8840 | 122 | { 0, 0 }, |
313deed2 BV |
123 | }; |
124 | ||
62bb8840 | 125 | static const char *trigger_sources[] = { |
a370ef19 BV |
126 | "CH1", |
127 | "CH2", | |
128 | "EXT", | |
88a13f30 | 129 | /* TODO: forced */ |
62bb8840 | 130 | NULL, |
a370ef19 | 131 | }; |
3b533202 | 132 | |
62bb8840 | 133 | static const char *filter_targets[] = { |
ebb781a6 BV |
134 | "CH1", |
135 | "CH2", | |
136 | /* TODO: "TRIGGER", */ | |
62bb8840 | 137 | NULL, |
ebb781a6 BV |
138 | }; |
139 | ||
62bb8840 | 140 | static const char *coupling[] = { |
b58fbd99 BV |
141 | "AC", |
142 | "DC", | |
143 | "GND", | |
62bb8840 | 144 | NULL, |
b58fbd99 BV |
145 | }; |
146 | ||
982947f7 BV |
147 | SR_PRIV struct sr_dev_driver hantek_dso_driver_info; |
148 | static struct sr_dev_driver *hdi = &hantek_dso_driver_info; | |
269971dd BV |
149 | static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi, |
150 | void *cb_data); | |
3b533202 | 151 | |
62bb8840 | 152 | static struct sr_dev_inst *dso_dev_new(int index, const struct dso_profile *prof) |
3b533202 BV |
153 | { |
154 | struct sr_dev_inst *sdi; | |
87ca93c5 | 155 | struct sr_probe *probe; |
269971dd BV |
156 | struct drv_context *drvc; |
157 | struct dev_context *devc; | |
87ca93c5 | 158 | int i; |
3b533202 BV |
159 | |
160 | sdi = sr_dev_inst_new(index, SR_ST_INITIALIZING, | |
88a13f30 | 161 | prof->vendor, prof->model, NULL); |
3b533202 BV |
162 | if (!sdi) |
163 | return NULL; | |
b0c8d7ac | 164 | sdi->driver = hdi; |
3b533202 | 165 | |
87ca93c5 BV |
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 | ||
269971dd BV |
176 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { |
177 | sr_err("hantek-dso: devc malloc failed"); | |
3b533202 BV |
178 | return NULL; |
179 | } | |
269971dd BV |
180 | devc->profile = prof; |
181 | devc->dev_state = IDLE; | |
182 | devc->timebase = DEFAULT_TIMEBASE; | |
183 | devc->ch1_enabled = TRUE; | |
184 | devc->ch2_enabled = TRUE; | |
185 | devc->voltage_ch1 = DEFAULT_VOLTAGE; | |
186 | devc->voltage_ch2 = DEFAULT_VOLTAGE; | |
187 | devc->coupling_ch1 = DEFAULT_COUPLING; | |
188 | devc->coupling_ch2 = DEFAULT_COUPLING; | |
189 | devc->voffset_ch1 = DEFAULT_VERT_OFFSET; | |
190 | devc->voffset_ch2 = DEFAULT_VERT_OFFSET; | |
191 | devc->voffset_trigger = DEFAULT_VERT_TRIGGERPOS; | |
192 | devc->framesize = DEFAULT_FRAMESIZE; | |
193 | devc->triggerslope = SLOPE_POSITIVE; | |
194 | devc->triggersource = g_strdup(DEFAULT_TRIGGER_SOURCE); | |
195 | devc->triggerposition = DEFAULT_HORIZ_TRIGGERPOS; | |
196 | sdi->priv = devc; | |
197 | drvc = hdi->priv; | |
198 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
3b533202 BV |
199 | |
200 | return sdi; | |
201 | } | |
202 | ||
269971dd | 203 | static int configure_probes(struct dev_context *devc, const GSList *probes) |
3b533202 | 204 | { |
62bb8840 UH |
205 | const struct sr_probe *probe; |
206 | const GSList *l; | |
3b533202 | 207 | |
269971dd | 208 | devc->ch1_enabled = devc->ch2_enabled = FALSE; |
3b533202 BV |
209 | for (l = probes; l; l = l->next) { |
210 | probe = (struct sr_probe *)l->data; | |
b35c8293 | 211 | if (probe->index == 0) |
269971dd | 212 | devc->ch1_enabled = probe->enabled; |
b35c8293 | 213 | else if (probe->index == 1) |
269971dd | 214 | devc->ch2_enabled = probe->enabled; |
3b533202 BV |
215 | } |
216 | ||
217 | return SR_OK; | |
218 | } | |
219 | ||
39cfdd75 BV |
220 | /* Properly close and free all devices. */ |
221 | static void clear_instances(void) | |
222 | { | |
223 | struct sr_dev_inst *sdi; | |
269971dd BV |
224 | struct drv_context *drvc; |
225 | struct dev_context *devc; | |
39cfdd75 BV |
226 | GSList *l; |
227 | ||
269971dd BV |
228 | drvc = hdi->priv; |
229 | for (l = drvc->instances; l; l = l->next) { | |
39cfdd75 BV |
230 | if (!(sdi = l->data)) { |
231 | /* Log error, but continue cleaning up the rest. */ | |
232 | sr_err("hantek-dso: %s: sdi was NULL, continuing", __func__); | |
233 | continue; | |
234 | } | |
269971dd | 235 | if (!(devc = sdi->priv)) { |
39cfdd75 BV |
236 | /* Log error, but continue cleaning up the rest. */ |
237 | sr_err("hantek-dso: %s: sdi->priv was NULL, continuing", __func__); | |
238 | continue; | |
239 | } | |
240 | dso_close(sdi); | |
269971dd BV |
241 | sr_usb_dev_inst_free(devc->usb); |
242 | g_free(devc->triggersource); | |
39cfdd75 BV |
243 | |
244 | sr_dev_inst_free(sdi); | |
245 | } | |
246 | ||
269971dd BV |
247 | g_slist_free(drvc->instances); |
248 | drvc->instances = NULL; | |
39cfdd75 BV |
249 | |
250 | } | |
251 | ||
40dda2c3 | 252 | static int hw_init(void) |
61136ea6 | 253 | { |
269971dd BV |
254 | struct drv_context *drvc; |
255 | ||
256 | if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) { | |
257 | sr_err("hantek-dso: driver context malloc failed."); | |
258 | return SR_ERR; | |
259 | } | |
61136ea6 | 260 | |
269971dd BV |
261 | if (libusb_init(&drvc->usb_context) != 0) { |
262 | g_free(drvc); | |
61136ea6 BV |
263 | sr_err("hantek-dso: Failed to initialize USB."); |
264 | return SR_ERR; | |
265 | } | |
266 | ||
269971dd BV |
267 | hdi->priv = drvc; |
268 | ||
61136ea6 BV |
269 | return SR_OK; |
270 | } | |
271 | ||
39cfdd75 | 272 | static GSList *hw_scan(GSList *options) |
3b533202 BV |
273 | { |
274 | struct sr_dev_inst *sdi; | |
62bb8840 | 275 | const struct dso_profile *prof; |
269971dd BV |
276 | struct drv_context *drvc; |
277 | struct dev_context *devc; | |
39cfdd75 BV |
278 | GSList *devices; |
279 | struct libusb_device_descriptor des; | |
3b533202 | 280 | libusb_device **devlist; |
61136ea6 | 281 | int devcnt, ret, i, j; |
3b533202 | 282 | |
39cfdd75 | 283 | (void)options; |
3b533202 | 284 | devcnt = 0; |
39cfdd75 | 285 | devices = 0; |
269971dd BV |
286 | drvc = hdi->priv; |
287 | drvc->instances = NULL; | |
39cfdd75 BV |
288 | |
289 | clear_instances(); | |
290 | ||
291 | /* Find all Hantek DSO devices and upload firmware to all of them. */ | |
269971dd | 292 | libusb_get_device_list(drvc->usb_context, &devlist); |
3b533202 | 293 | for (i = 0; devlist[i]; i++) { |
61136ea6 BV |
294 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { |
295 | sr_err("hantek-dso: failed to get device descriptor: %d", ret); | |
3b533202 BV |
296 | continue; |
297 | } | |
298 | ||
299 | prof = NULL; | |
300 | for (j = 0; dev_profiles[j].orig_vid; j++) { | |
301 | if (des.idVendor == dev_profiles[j].orig_vid | |
302 | && des.idProduct == dev_profiles[j].orig_pid) { | |
303 | /* Device matches the pre-firmware profile. */ | |
304 | prof = &dev_profiles[j]; | |
305 | sr_dbg("hantek-dso: Found a %s %s.", prof->vendor, prof->model); | |
306 | sdi = dso_dev_new(devcnt, prof); | |
39cfdd75 | 307 | devices = g_slist_append(devices, sdi); |
269971dd | 308 | devc = sdi->priv; |
3b533202 BV |
309 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, |
310 | prof->firmware) == SR_OK) | |
311 | /* Remember when the firmware on this device was updated */ | |
269971dd | 312 | devc->fw_updated = g_get_monotonic_time(); |
3b533202 BV |
313 | else |
314 | sr_err("hantek-dso: firmware upload failed for " | |
315 | "device %d", devcnt); | |
316 | /* Dummy USB address of 0xff will get overwritten later. */ | |
269971dd | 317 | devc->usb = sr_usb_dev_inst_new( |
3b533202 BV |
318 | libusb_get_bus_number(devlist[i]), 0xff, NULL); |
319 | devcnt++; | |
320 | break; | |
321 | } else if (des.idVendor == dev_profiles[j].fw_vid | |
322 | && des.idProduct == dev_profiles[j].fw_pid) { | |
323 | /* Device matches the post-firmware profile. */ | |
324 | prof = &dev_profiles[j]; | |
325 | sr_dbg("hantek-dso: Found a %s %s.", prof->vendor, prof->model); | |
326 | sdi = dso_dev_new(devcnt, prof); | |
327 | sdi->status = SR_ST_INACTIVE; | |
39cfdd75 | 328 | devices = g_slist_append(devices, sdi); |
269971dd BV |
329 | devc = sdi->priv; |
330 | devc->usb = sr_usb_dev_inst_new( | |
3b533202 BV |
331 | libusb_get_bus_number(devlist[i]), |
332 | libusb_get_device_address(devlist[i]), NULL); | |
333 | devcnt++; | |
334 | break; | |
335 | } | |
336 | } | |
337 | if (!prof) | |
338 | /* not a supported VID/PID */ | |
339 | continue; | |
340 | } | |
341 | libusb_free_device_list(devlist, 1); | |
342 | ||
39cfdd75 | 343 | return devices; |
3b533202 BV |
344 | } |
345 | ||
25a0f108 | 346 | static int hw_dev_open(struct sr_dev_inst *sdi) |
3b533202 | 347 | { |
269971dd | 348 | struct dev_context *devc; |
fc8fe3e3 BV |
349 | int64_t timediff_us, timediff_ms; |
350 | int err; | |
3b533202 | 351 | |
269971dd | 352 | devc = sdi->priv; |
3b533202 BV |
353 | |
354 | /* | |
fc8fe3e3 | 355 | * if the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS |
3b533202 BV |
356 | * for the FX2 to renumerate |
357 | */ | |
fc8fe3e3 | 358 | err = SR_ERR; |
269971dd | 359 | if (devc->fw_updated > 0) { |
3b533202 BV |
360 | sr_info("hantek-dso: waiting for device to reset"); |
361 | /* takes at least 300ms for the FX2 to be gone from the USB bus */ | |
362 | g_usleep(300 * 1000); | |
fc8fe3e3 BV |
363 | timediff_ms = 0; |
364 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
25a0f108 | 365 | if ((err = dso_open(sdi)) == SR_OK) |
3b533202 BV |
366 | break; |
367 | g_usleep(100 * 1000); | |
269971dd | 368 | timediff_us = g_get_monotonic_time() - devc->fw_updated; |
fc8fe3e3 | 369 | timediff_ms = timediff_us / 1000; |
99f5d45e | 370 | sr_spew("hantek-dso: waited %" PRIi64 " ms", timediff_ms); |
3b533202 | 371 | } |
fc8fe3e3 | 372 | sr_info("hantek-dso: device came back after %d ms", timediff_ms); |
3b533202 | 373 | } else { |
25a0f108 | 374 | err = dso_open(sdi); |
3b533202 BV |
375 | } |
376 | ||
377 | if (err != SR_OK) { | |
378 | sr_err("hantek-dso: unable to open device"); | |
379 | return SR_ERR; | |
380 | } | |
381 | ||
269971dd | 382 | err = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE); |
3b533202 BV |
383 | if (err != 0) { |
384 | sr_err("hantek-dso: Unable to claim interface: %d", err); | |
385 | return SR_ERR; | |
386 | } | |
387 | ||
388 | return SR_OK; | |
389 | } | |
390 | ||
25a0f108 | 391 | static int hw_dev_close(struct sr_dev_inst *sdi) |
3b533202 | 392 | { |
3b533202 BV |
393 | |
394 | dso_close(sdi); | |
395 | ||
396 | return SR_OK; | |
397 | } | |
398 | ||
399 | static int hw_cleanup(void) | |
400 | { | |
269971dd BV |
401 | struct drv_context *drvc; |
402 | ||
403 | if (!(drvc = hdi->priv)) | |
404 | return SR_OK; | |
3b533202 | 405 | |
39cfdd75 | 406 | clear_instances(); |
3b533202 | 407 | |
269971dd BV |
408 | if (drvc->usb_context) |
409 | libusb_exit(drvc->usb_context); | |
410 | drvc->usb_context = NULL; | |
3b533202 BV |
411 | |
412 | return SR_OK; | |
413 | } | |
414 | ||
0b79bcbb BV |
415 | static int hw_info_get(int info_id, const void **data, |
416 | const struct sr_dev_inst *sdi) | |
3b533202 | 417 | { |
3b533202 BV |
418 | uint64_t tmp; |
419 | ||
6f57fd96 BV |
420 | (void)sdi; |
421 | ||
0b79bcbb | 422 | switch (info_id) { |
2ce9f046 BV |
423 | case SR_DI_HWCAPS: |
424 | *data = hwcaps; | |
425 | break; | |
3b533202 | 426 | case SR_DI_NUM_PROBES: |
0b79bcbb | 427 | *data = GINT_TO_POINTER(NUM_PROBES); |
3b533202 BV |
428 | break; |
429 | case SR_DI_PROBE_NAMES: | |
0b79bcbb | 430 | *data = probe_names; |
3b533202 | 431 | break; |
a370ef19 | 432 | case SR_DI_BUFFERSIZES: |
0b79bcbb | 433 | *data = buffersizes; |
a370ef19 BV |
434 | break; |
435 | case SR_DI_TIMEBASES: | |
0b79bcbb | 436 | *data = timebases; |
a370ef19 BV |
437 | break; |
438 | case SR_DI_TRIGGER_SOURCES: | |
0b79bcbb | 439 | *data = trigger_sources; |
a370ef19 | 440 | break; |
ebb781a6 | 441 | case SR_DI_FILTERS: |
0b79bcbb | 442 | *data = filter_targets; |
ebb781a6 | 443 | break; |
313deed2 | 444 | case SR_DI_VDIVS: |
0b79bcbb | 445 | *data = vdivs; |
313deed2 | 446 | break; |
4a090d72 | 447 | case SR_DI_COUPLING: |
0b79bcbb | 448 | *data = coupling; |
4a090d72 | 449 | break; |
3b533202 BV |
450 | /* TODO remove this */ |
451 | case SR_DI_CUR_SAMPLERATE: | |
0b79bcbb | 452 | *data = &tmp; |
3b533202 | 453 | break; |
b0c8d7ac BV |
454 | default: |
455 | return SR_ERR_ARG; | |
3b533202 BV |
456 | } |
457 | ||
0b79bcbb | 458 | return SR_OK; |
3b533202 BV |
459 | } |
460 | ||
6f4b1868 BV |
461 | static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap, |
462 | const void *value) | |
3b533202 | 463 | { |
269971dd | 464 | struct dev_context *devc; |
a370ef19 BV |
465 | struct sr_rational tmp_rat; |
466 | float tmp_float; | |
467 | uint64_t tmp_u64; | |
468 | int ret, i; | |
4a090d72 | 469 | char **targets; |
3b533202 | 470 | |
3b533202 BV |
471 | if (sdi->status != SR_ST_ACTIVE) |
472 | return SR_ERR; | |
473 | ||
a370ef19 | 474 | ret = SR_OK; |
269971dd | 475 | devc = sdi->priv; |
3b533202 | 476 | switch (hwcap) { |
ae88b97b | 477 | case SR_HWCAP_LIMIT_FRAMES: |
269971dd | 478 | devc->limit_frames = *(const uint64_t *)value; |
ae88b97b | 479 | break; |
3b533202 | 480 | case SR_HWCAP_PROBECONFIG: |
269971dd | 481 | ret = configure_probes(devc, (const GSList *)value); |
3b533202 | 482 | break; |
a370ef19 | 483 | case SR_HWCAP_TRIGGER_SLOPE: |
62bb8840 | 484 | tmp_u64 = *(const int *)value; |
a370ef19 BV |
485 | if (tmp_u64 != SLOPE_NEGATIVE && tmp_u64 != SLOPE_POSITIVE) |
486 | ret = SR_ERR_ARG; | |
269971dd | 487 | devc->triggerslope = tmp_u64; |
a370ef19 BV |
488 | break; |
489 | case SR_HWCAP_HORIZ_TRIGGERPOS: | |
62bb8840 | 490 | tmp_float = *(const float *)value; |
a370ef19 BV |
491 | if (tmp_float < 0.0 || tmp_float > 1.0) { |
492 | sr_err("hantek-dso: trigger position should be between 0.0 and 1.0"); | |
3b533202 | 493 | ret = SR_ERR_ARG; |
a370ef19 | 494 | } else |
269971dd | 495 | devc->triggerposition = tmp_float; |
a370ef19 BV |
496 | break; |
497 | case SR_HWCAP_BUFFERSIZE: | |
62bb8840 | 498 | tmp_u64 = *(const int *)value; |
a370ef19 BV |
499 | for (i = 0; buffersizes[i]; i++) { |
500 | if (buffersizes[i] == tmp_u64) { | |
269971dd | 501 | devc->framesize = tmp_u64; |
a370ef19 BV |
502 | break; |
503 | } | |
504 | } | |
505 | if (buffersizes[i] == 0) | |
506 | ret = SR_ERR_ARG; | |
507 | break; | |
508 | case SR_HWCAP_TIMEBASE: | |
62bb8840 | 509 | tmp_rat = *(const struct sr_rational *)value; |
a370ef19 BV |
510 | for (i = 0; timebases[i].p && timebases[i].q; i++) { |
511 | if (timebases[i].p == tmp_rat.p | |
512 | && timebases[i].q == tmp_rat.q) { | |
269971dd | 513 | devc->timebase = i; |
a370ef19 BV |
514 | break; |
515 | } | |
516 | } | |
517 | if (timebases[i].p == 0 && timebases[i].q == 0) | |
518 | ret = SR_ERR_ARG; | |
519 | break; | |
520 | case SR_HWCAP_TRIGGER_SOURCE: | |
a370ef19 | 521 | for (i = 0; trigger_sources[i]; i++) { |
4a090d72 | 522 | if (!strcmp(value, trigger_sources[i])) { |
269971dd | 523 | devc->triggersource = g_strdup(value); |
a370ef19 BV |
524 | break; |
525 | } | |
526 | } | |
527 | if (trigger_sources[i] == 0) | |
528 | ret = SR_ERR_ARG; | |
529 | break; | |
ebb781a6 | 530 | case SR_HWCAP_FILTER: |
269971dd | 531 | devc->filter_ch1 = devc->filter_ch2 = devc->filter_trigger = 0; |
ebb781a6 BV |
532 | targets = g_strsplit(value, ",", 0); |
533 | for (i = 0; targets[i]; i++) { | |
534 | if (targets[i] == '\0') | |
535 | /* Empty filter string can be used to clear them all. */ | |
536 | ; | |
537 | else if (!strcmp(targets[i], "CH1")) | |
269971dd | 538 | devc->filter_ch1 = TRUE; |
ebb781a6 | 539 | else if (!strcmp(targets[i], "CH2")) |
269971dd | 540 | devc->filter_ch2 = TRUE; |
ebb781a6 | 541 | else if (!strcmp(targets[i], "TRIGGER")) |
269971dd | 542 | devc->filter_trigger = TRUE; |
ebb781a6 BV |
543 | else { |
544 | sr_err("invalid filter target %s", targets[i]); | |
545 | ret = SR_ERR_ARG; | |
546 | } | |
547 | } | |
548 | g_strfreev(targets); | |
549 | break; | |
313deed2 BV |
550 | case SR_HWCAP_VDIV: |
551 | /* TODO not supporting vdiv per channel yet */ | |
62bb8840 | 552 | tmp_rat = *(const struct sr_rational *)value; |
313deed2 BV |
553 | for (i = 0; vdivs[i].p && vdivs[i].q; i++) { |
554 | if (vdivs[i].p == tmp_rat.p | |
555 | && vdivs[i].q == tmp_rat.q) { | |
269971dd BV |
556 | devc->voltage_ch1 = i; |
557 | devc->voltage_ch2 = i; | |
313deed2 BV |
558 | break; |
559 | } | |
560 | } | |
561 | if (vdivs[i].p == 0 && vdivs[i].q == 0) | |
562 | ret = SR_ERR_ARG; | |
563 | break; | |
b58fbd99 BV |
564 | case SR_HWCAP_COUPLING: |
565 | /* TODO not supporting coupling per channel yet */ | |
b58fbd99 | 566 | for (i = 0; coupling[i]; i++) { |
4a090d72 | 567 | if (!strcmp(value, coupling[i])) { |
269971dd BV |
568 | devc->coupling_ch1 = i; |
569 | devc->coupling_ch2 = i; | |
b58fbd99 BV |
570 | break; |
571 | } | |
572 | } | |
573 | if (coupling[i] == 0) | |
574 | ret = SR_ERR_ARG; | |
575 | break; | |
3b533202 BV |
576 | default: |
577 | ret = SR_ERR_ARG; | |
578 | } | |
579 | ||
580 | return ret; | |
581 | } | |
582 | ||
269971dd | 583 | static void send_chunk(struct dev_context *devc, unsigned char *buf, |
e749a8cb | 584 | int num_samples) |
3b533202 BV |
585 | { |
586 | struct sr_datafeed_packet packet; | |
587 | struct sr_datafeed_analog analog; | |
c5841b28 | 588 | float ch1, ch2, range; |
6e71ef3b | 589 | int num_probes, data_offset, i; |
3b533202 | 590 | |
269971dd | 591 | num_probes = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; |
3b533202 BV |
592 | packet.type = SR_DF_ANALOG; |
593 | packet.payload = &analog; | |
6e71ef3b | 594 | /* TODO: support for 5xxx series 9-bit samples */ |
e749a8cb | 595 | analog.num_samples = num_samples; |
9956f285 UH |
596 | analog.mq = SR_MQ_VOLTAGE; |
597 | analog.unit = SR_UNIT_VOLT; | |
6e71ef3b BV |
598 | analog.data = g_try_malloc(analog.num_samples * sizeof(float) * num_probes); |
599 | data_offset = 0; | |
3b533202 | 600 | for (i = 0; i < analog.num_samples; i++) { |
6e71ef3b BV |
601 | /* The device always sends data for both channels. If a channel |
602 | * is disabled, it contains a copy of the enabled channel's | |
603 | * data. However, we only send the requested channels to the bus. | |
c5841b28 BV |
604 | * |
605 | * Voltage values are encoded as a value 0-255 (0-512 on the 5200*), | |
606 | * where the value is a point in the range represented by the vdiv | |
607 | * setting. There are 8 vertical divs, so e.g. 500mV/div represents | |
608 | * 4V peak-to-peak where 0 = -2V and 255 = +2V. | |
6e71ef3b | 609 | */ |
3b533202 | 610 | /* TODO: support for 5xxx series 9-bit samples */ |
269971dd BV |
611 | if (devc->ch1_enabled) { |
612 | range = ((float)vdivs[devc->voltage_ch1].p / vdivs[devc->voltage_ch1].q) * 8; | |
e749a8cb | 613 | ch1 = range / 255 * *(buf + i * 2 + 1); |
c5841b28 BV |
614 | /* Value is centered around 0V. */ |
615 | ch1 -= range / 2; | |
6e71ef3b BV |
616 | analog.data[data_offset++] = ch1; |
617 | } | |
269971dd BV |
618 | if (devc->ch2_enabled) { |
619 | range = ((float)vdivs[devc->voltage_ch2].p / vdivs[devc->voltage_ch2].q) * 8; | |
e749a8cb | 620 | ch2 = range / 255 * *(buf + i * 2); |
c5841b28 | 621 | ch2 -= range / 2; |
6e71ef3b BV |
622 | analog.data[data_offset++] = ch2; |
623 | } | |
3b533202 | 624 | } |
269971dd | 625 | sr_session_send(devc->cb_data, &packet); |
e749a8cb BV |
626 | |
627 | } | |
628 | ||
629 | /* Called by libusb (as triggered by handle_event()) when a transfer comes in. | |
630 | * Only channel data comes in asynchronously, and all transfers for this are | |
631 | * queued up beforehand, so this just needs so chuck the incoming data onto | |
632 | * the libsigrok session bus. | |
633 | */ | |
634 | static void receive_transfer(struct libusb_transfer *transfer) | |
635 | { | |
636 | struct sr_datafeed_packet packet; | |
269971dd | 637 | struct dev_context *devc; |
e749a8cb BV |
638 | int num_samples, pre; |
639 | ||
269971dd | 640 | devc = transfer->user_data; |
e749a8cb BV |
641 | sr_dbg("hantek-dso: receive_transfer(): status %d received %d bytes", |
642 | transfer->status, transfer->actual_length); | |
643 | ||
644 | if (transfer->actual_length == 0) | |
645 | /* Nothing to send to the bus. */ | |
646 | return; | |
647 | ||
648 | num_samples = transfer->actual_length / 2; | |
649 | ||
269971dd BV |
650 | sr_dbg("hantek-dso: got %d-%d/%d samples in frame", devc->samp_received + 1, |
651 | devc->samp_received + num_samples, devc->framesize); | |
e749a8cb BV |
652 | |
653 | /* The device always sends a full frame, but the beginning of the frame | |
654 | * doesn't represent the trigger point. The offset at which the trigger | |
655 | * happened came in with the capture state, so we need to start sending | |
656 | * from there up the session bus. The samples in the frame buffer before | |
657 | * that trigger point came after the end of the device's frame buffer was | |
658 | * reached, and it wrapped around to overwrite up until the trigger point. | |
659 | */ | |
269971dd | 660 | if (devc->samp_received < devc->trigger_offset) { |
e749a8cb | 661 | /* Trigger point not yet reached. */ |
269971dd | 662 | if (devc->samp_received + num_samples < devc->trigger_offset) { |
e749a8cb | 663 | /* The entire chunk is before the trigger point. */ |
269971dd | 664 | memcpy(devc->framebuf + devc->samp_buffered * 2, |
e749a8cb | 665 | transfer->buffer, num_samples * 2); |
269971dd | 666 | devc->samp_buffered += num_samples; |
e749a8cb BV |
667 | } else { |
668 | /* This chunk hits or overruns the trigger point. | |
669 | * Store the part before the trigger fired, and | |
670 | * send the rest up to the session bus. */ | |
269971dd BV |
671 | pre = devc->trigger_offset - devc->samp_received; |
672 | memcpy(devc->framebuf + devc->samp_buffered * 2, | |
e749a8cb | 673 | transfer->buffer, pre * 2); |
269971dd | 674 | devc->samp_buffered += pre; |
e749a8cb BV |
675 | |
676 | /* The rest of this chunk starts with the trigger point. */ | |
677 | sr_dbg("hantek-dso: reached trigger point, %d samples buffered", | |
269971dd | 678 | devc->samp_buffered); |
e749a8cb BV |
679 | |
680 | /* Avoid the corner case where the chunk ended at | |
681 | * exactly the trigger point. */ | |
682 | if (num_samples > pre) | |
269971dd | 683 | send_chunk(devc, transfer->buffer + pre * 2, |
e749a8cb BV |
684 | num_samples - pre); |
685 | } | |
686 | } else { | |
687 | /* Already past the trigger point, just send it all out. */ | |
269971dd | 688 | send_chunk(devc, transfer->buffer, |
e749a8cb BV |
689 | num_samples); |
690 | } | |
691 | ||
269971dd | 692 | devc->samp_received += num_samples; |
e749a8cb BV |
693 | |
694 | /* Everything in this transfer was either copied to the buffer or | |
695 | * sent to the session bus. */ | |
3b533202 BV |
696 | g_free(transfer->buffer); |
697 | libusb_free_transfer(transfer); | |
3b533202 | 698 | |
269971dd | 699 | if (devc->samp_received >= devc->framesize) { |
e749a8cb BV |
700 | /* That was the last chunk in this frame. Send the buffered |
701 | * pre-trigger samples out now, in one big chunk. */ | |
702 | sr_dbg("hantek-dso: end of frame, sending %d pre-trigger buffered samples", | |
269971dd BV |
703 | devc->samp_buffered); |
704 | send_chunk(devc, devc->framebuf, devc->samp_buffered); | |
e749a8cb BV |
705 | |
706 | /* Mark the end of this frame. */ | |
ae88b97b | 707 | packet.type = SR_DF_FRAME_END; |
269971dd | 708 | sr_session_send(devc->cb_data, &packet); |
ae88b97b | 709 | |
269971dd | 710 | if (devc->limit_frames && ++devc->num_frames == devc->limit_frames) { |
ae88b97b | 711 | /* Terminate session */ |
6e71ef3b | 712 | /* TODO: don't leave pending USB transfers hanging */ |
ae88b97b BV |
713 | packet.type = SR_DF_END; |
714 | sr_session_send(ctx->cb_data, &packet); | |
715 | } else { | |
269971dd | 716 | devc->dev_state = NEW_CAPTURE; |
ae88b97b BV |
717 | } |
718 | } | |
719 | ||
3b533202 BV |
720 | } |
721 | ||
722 | static int handle_event(int fd, int revents, void *cb_data) | |
723 | { | |
ae88b97b | 724 | struct sr_datafeed_packet packet; |
3b533202 | 725 | struct timeval tv; |
e749a8cb | 726 | int num_probes; |
269971dd BV |
727 | struct drv_context *drvc; |
728 | struct dev_context *devc; | |
6e6eeff4 BV |
729 | uint32_t trigger_offset; |
730 | uint8_t capturestate; | |
3b533202 BV |
731 | |
732 | /* Avoid compiler warnings. */ | |
733 | (void)fd; | |
734 | (void)revents; | |
735 | ||
269971dd BV |
736 | drvc = hdi->priv; |
737 | sdi = cb_data; | |
738 | devc = sdi->priv; | |
3b533202 BV |
739 | /* Always handle pending libusb events. */ |
740 | tv.tv_sec = tv.tv_usec = 0; | |
269971dd | 741 | libusb_handle_events_timeout(drvc->usb_context, &tv); |
3b533202 BV |
742 | |
743 | ctx = cb_data; | |
744 | /* TODO: ugh */ | |
269971dd BV |
745 | if (devc->dev_state == NEW_CAPTURE) { |
746 | if (dso_capture_start(devc) != SR_OK) | |
3b533202 | 747 | return TRUE; |
269971dd | 748 | if (dso_enable_trigger(devc) != SR_OK) |
3b533202 | 749 | return TRUE; |
269971dd | 750 | // if (dso_force_trigger(devc) != SR_OK) |
a370ef19 | 751 | // return TRUE; |
3b533202 | 752 | sr_dbg("hantek-dso: successfully requested next chunk"); |
269971dd | 753 | devc->dev_state = CAPTURE; |
3b533202 BV |
754 | return TRUE; |
755 | } | |
269971dd | 756 | if (devc->dev_state != CAPTURE) |
3b533202 BV |
757 | return TRUE; |
758 | ||
269971dd | 759 | if ((dso_get_capturestate(devc, &capturestate, &trigger_offset)) != SR_OK) |
3b533202 | 760 | return TRUE; |
3b533202 BV |
761 | |
762 | sr_dbg("hantek-dso: capturestate %d", capturestate); | |
6e6eeff4 | 763 | sr_dbg("hantek-dso: trigger offset 0x%.6x", trigger_offset); |
3b533202 BV |
764 | switch (capturestate) { |
765 | case CAPTURE_EMPTY: | |
269971dd BV |
766 | if (++devc->capture_empty_count >= MAX_CAPTURE_EMPTY) { |
767 | devc->capture_empty_count = 0; | |
768 | if (dso_capture_start(devc) != SR_OK) | |
3b533202 | 769 | break; |
269971dd | 770 | if (dso_enable_trigger(devc) != SR_OK) |
3b533202 | 771 | break; |
269971dd | 772 | // if (dso_force_trigger(devc) != SR_OK) |
a370ef19 | 773 | // break; |
3b533202 BV |
774 | sr_dbg("hantek-dso: successfully requested next chunk"); |
775 | } | |
776 | break; | |
777 | case CAPTURE_FILLING: | |
778 | /* no data yet */ | |
779 | break; | |
780 | case CAPTURE_READY_8BIT: | |
e749a8cb | 781 | /* Remember where in the captured frame the trigger is. */ |
269971dd | 782 | devc->trigger_offset = trigger_offset; |
e749a8cb | 783 | |
269971dd BV |
784 | num_probes = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; |
785 | devc->framebuf = g_try_malloc(devc->framesize * num_probes * 2); | |
786 | devc->samp_buffered = devc->samp_received = 0; | |
e749a8cb | 787 | |
3b533202 | 788 | /* Tell the scope to send us the first frame. */ |
269971dd | 789 | if (dso_get_channeldata(devc, receive_transfer) != SR_OK) |
3b533202 | 790 | break; |
ae88b97b BV |
791 | |
792 | /* Don't hit the state machine again until we're done fetching | |
793 | * the data we just told the scope to send. | |
794 | */ | |
269971dd | 795 | devc->dev_state = FETCH_DATA; |
ae88b97b BV |
796 | |
797 | /* Tell the frontend a new frame is on the way. */ | |
798 | packet.type = SR_DF_FRAME_BEGIN; | |
269971dd | 799 | sr_session_send(sdi, &packet); |
3b533202 BV |
800 | break; |
801 | case CAPTURE_READY_9BIT: | |
802 | /* TODO */ | |
803 | sr_err("not yet supported"); | |
804 | break; | |
805 | case CAPTURE_TIMEOUT: | |
806 | /* Doesn't matter, we'll try again next time. */ | |
807 | break; | |
808 | default: | |
809 | sr_dbg("unknown capture state"); | |
810 | } | |
811 | ||
812 | return TRUE; | |
813 | } | |
814 | ||
3ffb6964 BV |
815 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, |
816 | void *cb_data) | |
3b533202 BV |
817 | { |
818 | const struct libusb_pollfd **lupfd; | |
819 | struct sr_datafeed_packet packet; | |
820 | struct sr_datafeed_header header; | |
821 | struct sr_datafeed_meta_analog meta; | |
269971dd BV |
822 | struct drv_context *drvc; |
823 | struct dev_context *devc; | |
3b533202 BV |
824 | int i; |
825 | ||
269971dd | 826 | drvc = hdi->priv; |
3b533202 BV |
827 | if (sdi->status != SR_ST_ACTIVE) |
828 | return SR_ERR; | |
829 | ||
269971dd BV |
830 | devc = sdi->priv; |
831 | devc->cb_data = cb_data; | |
3b533202 | 832 | |
269971dd | 833 | if (dso_init(devc) != SR_OK) |
3b533202 BV |
834 | return SR_ERR; |
835 | ||
269971dd | 836 | if (dso_capture_start(devc) != SR_OK) |
3b533202 BV |
837 | return SR_ERR; |
838 | ||
269971dd BV |
839 | devc->dev_state = CAPTURE; |
840 | lupfd = libusb_get_pollfds(drvc->usb_context); | |
3b533202 BV |
841 | for (i = 0; lupfd[i]; i++) |
842 | sr_source_add(lupfd[i]->fd, lupfd[i]->events, TICK, handle_event, | |
843 | ctx); | |
844 | free(lupfd); | |
845 | ||
846 | /* Send header packet to the session bus. */ | |
847 | packet.type = SR_DF_HEADER; | |
848 | packet.payload = (unsigned char *)&header; | |
849 | header.feed_version = 1; | |
850 | gettimeofday(&header.starttime, NULL); | |
851 | sr_session_send(cb_data, &packet); | |
852 | ||
853 | /* Send metadata about the SR_DF_ANALOG packets to come. */ | |
854 | packet.type = SR_DF_META_ANALOG; | |
855 | packet.payload = &meta; | |
88a13f30 | 856 | meta.num_probes = NUM_PROBES; |
3b533202 BV |
857 | sr_session_send(cb_data, &packet); |
858 | ||
859 | return SR_OK; | |
860 | } | |
861 | ||
862 | /* TODO: doesn't really cancel pending transfers so they might come in after | |
863 | * SR_DF_END is sent. | |
864 | */ | |
3ffb6964 BV |
865 | static int hw_dev_acquisition_stop(const struct sr_dev_inst *sdi, |
866 | void *cb_data) | |
3b533202 | 867 | { |
269971dd BV |
868 | struct dev_context *devc; |
869 | ||
870 | (void)cb_data; | |
3b533202 | 871 | |
3b533202 BV |
872 | if (sdi->status != SR_ST_ACTIVE) |
873 | return SR_ERR; | |
874 | ||
875 | ctx = sdi->priv; | |
876 | ctx->dev_state = IDLE; | |
877 | ||
878 | packet.type = SR_DF_END; | |
62bb8840 | 879 | sr_session_send(cb_data, &packet); |
3b533202 BV |
880 | |
881 | return SR_OK; | |
882 | } | |
883 | ||
62bb8840 | 884 | SR_PRIV struct sr_dev_driver hantek_dso_driver_info = { |
3b533202 BV |
885 | .name = "hantek-dso", |
886 | .longname = "Hantek DSO", | |
887 | .api_version = 1, | |
888 | .init = hw_init, | |
889 | .cleanup = hw_cleanup, | |
61136ea6 | 890 | .scan = hw_scan, |
3b533202 BV |
891 | .dev_open = hw_dev_open, |
892 | .dev_close = hw_dev_close, | |
0b79bcbb | 893 | .info_get = hw_info_get, |
3b533202 | 894 | .dev_config_set = hw_dev_config_set, |
62bb8840 UH |
895 | .dev_acquisition_start = hw_dev_acquisition_start, |
896 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
269971dd | 897 | .priv = NULL, |
3b533202 | 898 | }; |