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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 "dso.h" |
35 | ||
fc8fe3e3 BV |
36 | /* Max time in ms before we want to check on USB events */ |
37 | /* TODO tune this properly */ | |
e98b7f1b | 38 | #define TICK 1 |
3b533202 | 39 | |
62bb8840 | 40 | static const int hwcaps[] = { |
3b533202 | 41 | SR_HWCAP_OSCILLOSCOPE, |
ae88b97b | 42 | SR_HWCAP_LIMIT_SAMPLES, |
3b533202 | 43 | SR_HWCAP_CONTINUOUS, |
a370ef19 BV |
44 | SR_HWCAP_TIMEBASE, |
45 | SR_HWCAP_BUFFERSIZE, | |
46 | SR_HWCAP_TRIGGER_SOURCE, | |
47 | SR_HWCAP_TRIGGER_SLOPE, | |
48 | SR_HWCAP_HORIZ_TRIGGERPOS, | |
ebb781a6 | 49 | SR_HWCAP_FILTER, |
313deed2 | 50 | SR_HWCAP_VDIV, |
4a090d72 | 51 | SR_HWCAP_COUPLING, |
3b533202 BV |
52 | 0, |
53 | }; | |
54 | ||
55 | static const char *probe_names[] = { | |
56 | "CH1", | |
57 | "CH2", | |
58 | NULL, | |
59 | }; | |
60 | ||
62bb8840 | 61 | static const struct dso_profile dev_profiles[] = { |
88a13f30 | 62 | { 0x04b4, 0x2090, 0x04b5, 0x2090, |
3b533202 | 63 | "Hantek", "DSO-2090", |
88a13f30 BV |
64 | FIRMWARE_DIR "/hantek-dso-2xxx.fw" }, |
65 | { 0x04b4, 0x2150, 0x04b5, 0x2150, | |
66 | "Hantek", "DSO-2150", | |
67 | FIRMWARE_DIR "/hantek-dso-2xxx.fw" }, | |
68 | { 0x04b4, 0x2250, 0x04b5, 0x2250, | |
69 | "Hantek", "DSO-2250", | |
70 | FIRMWARE_DIR "/hantek-dso-2xxx.fw" }, | |
71 | { 0x04b4, 0x5200, 0x04b5, 0x5200, | |
72 | "Hantek", "DSO-5200", | |
73 | FIRMWARE_DIR "/hantek-dso-5xxx.fw" }, | |
74 | { 0x04b4, 0x520a, 0x04b5, 0x520a, | |
75 | "Hantek", "DSO-5200A", | |
76 | FIRMWARE_DIR "/hantek-dso-5xxx.fw" }, | |
77 | { 0, 0, 0, 0, 0, 0, 0 }, | |
3b533202 BV |
78 | }; |
79 | ||
62bb8840 | 80 | static const uint64_t buffersizes[] = { |
a370ef19 BV |
81 | 10240, |
82 | 32768, | |
83 | /* TODO: 65535 */ | |
62bb8840 | 84 | 0, |
a370ef19 BV |
85 | }; |
86 | ||
62bb8840 | 87 | static const struct sr_rational timebases[] = { |
a370ef19 BV |
88 | /* microseconds */ |
89 | { 10, 1000000 }, | |
90 | { 20, 1000000 }, | |
91 | { 40, 1000000 }, | |
92 | { 100, 1000000 }, | |
93 | { 200, 1000000 }, | |
94 | { 400, 1000000 }, | |
95 | /* milliseconds */ | |
96 | { 1, 1000 }, | |
97 | { 2, 1000 }, | |
98 | { 4, 1000 }, | |
99 | { 10, 1000 }, | |
100 | { 20, 1000 }, | |
101 | { 40, 1000 }, | |
102 | { 100, 1000 }, | |
103 | { 200, 1000 }, | |
104 | { 400, 1000 }, | |
62bb8840 | 105 | { 0, 0}, |
a370ef19 BV |
106 | }; |
107 | ||
62bb8840 | 108 | static const struct sr_rational vdivs[] = { |
313deed2 BV |
109 | /* millivolts */ |
110 | { 10, 1000 }, | |
111 | { 20, 1000 }, | |
112 | { 50, 1000 }, | |
113 | { 100, 1000 }, | |
114 | { 200, 1000 }, | |
115 | { 500, 1000 }, | |
116 | /* volts */ | |
117 | { 1, 1 }, | |
118 | { 2, 1 }, | |
119 | { 5, 1 }, | |
62bb8840 | 120 | { 0, 0 }, |
313deed2 BV |
121 | }; |
122 | ||
62bb8840 | 123 | static const char *trigger_sources[] = { |
a370ef19 BV |
124 | "CH1", |
125 | "CH2", | |
126 | "EXT", | |
88a13f30 | 127 | /* TODO: forced */ |
62bb8840 | 128 | NULL, |
a370ef19 | 129 | }; |
3b533202 | 130 | |
62bb8840 | 131 | static const char *filter_targets[] = { |
ebb781a6 BV |
132 | "CH1", |
133 | "CH2", | |
134 | /* TODO: "TRIGGER", */ | |
62bb8840 | 135 | NULL, |
ebb781a6 BV |
136 | }; |
137 | ||
62bb8840 | 138 | static const char *coupling[] = { |
b58fbd99 BV |
139 | "AC", |
140 | "DC", | |
141 | "GND", | |
62bb8840 | 142 | NULL, |
b58fbd99 BV |
143 | }; |
144 | ||
982947f7 BV |
145 | SR_PRIV struct sr_dev_driver hantek_dso_driver_info; |
146 | static struct sr_dev_driver *hdi = &hantek_dso_driver_info; | |
e98b7f1b | 147 | |
69b07d14 | 148 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data); |
3b533202 | 149 | |
62bb8840 | 150 | static struct sr_dev_inst *dso_dev_new(int index, const struct dso_profile *prof) |
3b533202 BV |
151 | { |
152 | struct sr_dev_inst *sdi; | |
87ca93c5 | 153 | struct sr_probe *probe; |
269971dd BV |
154 | struct drv_context *drvc; |
155 | struct dev_context *devc; | |
87ca93c5 | 156 | int i; |
3b533202 BV |
157 | |
158 | sdi = sr_dev_inst_new(index, SR_ST_INITIALIZING, | |
88a13f30 | 159 | prof->vendor, prof->model, NULL); |
3b533202 BV |
160 | if (!sdi) |
161 | return NULL; | |
b0c8d7ac | 162 | sdi->driver = hdi; |
3b533202 | 163 | |
e98b7f1b UH |
164 | /* |
165 | * Add only the real probes -- EXT isn't a source of data, only | |
87ca93c5 BV |
166 | * a trigger source internal to the device. |
167 | */ | |
168 | for (i = 0; probe_names[i]; i++) { | |
169 | if (!(probe = sr_probe_new(i, SR_PROBE_ANALOG, TRUE, | |
170 | probe_names[i]))) | |
171 | return NULL; | |
172 | sdi->probes = g_slist_append(sdi->probes, probe); | |
173 | } | |
174 | ||
269971dd | 175 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { |
e98b7f1b | 176 | sr_err("Device context malloc failed."); |
3b533202 BV |
177 | return NULL; |
178 | } | |
e98b7f1b | 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 | ||
014359e3 | 203 | static int configure_probes(const struct sr_dev_inst *sdi) |
3b533202 | 204 | { |
014359e3 | 205 | struct dev_context *devc; |
62bb8840 UH |
206 | const struct sr_probe *probe; |
207 | const GSList *l; | |
3b533202 | 208 | |
014359e3 BV |
209 | devc = sdi->priv; |
210 | ||
269971dd | 211 | devc->ch1_enabled = devc->ch2_enabled = FALSE; |
014359e3 | 212 | for (l = sdi->probes; l; l = l->next) { |
3b533202 | 213 | probe = (struct sr_probe *)l->data; |
b35c8293 | 214 | if (probe->index == 0) |
269971dd | 215 | devc->ch1_enabled = probe->enabled; |
b35c8293 | 216 | else if (probe->index == 1) |
269971dd | 217 | devc->ch2_enabled = probe->enabled; |
3b533202 BV |
218 | } |
219 | ||
220 | return SR_OK; | |
221 | } | |
222 | ||
39cfdd75 | 223 | /* Properly close and free all devices. */ |
811deee4 | 224 | static int clear_instances(void) |
39cfdd75 BV |
225 | { |
226 | struct sr_dev_inst *sdi; | |
269971dd BV |
227 | struct drv_context *drvc; |
228 | struct dev_context *devc; | |
39cfdd75 BV |
229 | GSList *l; |
230 | ||
269971dd BV |
231 | drvc = hdi->priv; |
232 | for (l = drvc->instances; l; l = l->next) { | |
39cfdd75 BV |
233 | if (!(sdi = l->data)) { |
234 | /* Log error, but continue cleaning up the rest. */ | |
e98b7f1b | 235 | sr_err("%s: sdi was NULL, continuing", __func__); |
39cfdd75 BV |
236 | continue; |
237 | } | |
269971dd | 238 | if (!(devc = sdi->priv)) { |
39cfdd75 | 239 | /* Log error, but continue cleaning up the rest. */ |
e98b7f1b | 240 | sr_err("%s: sdi->priv was NULL, continuing", __func__); |
39cfdd75 BV |
241 | continue; |
242 | } | |
243 | dso_close(sdi); | |
269971dd BV |
244 | sr_usb_dev_inst_free(devc->usb); |
245 | g_free(devc->triggersource); | |
39cfdd75 BV |
246 | |
247 | sr_dev_inst_free(sdi); | |
248 | } | |
249 | ||
269971dd BV |
250 | g_slist_free(drvc->instances); |
251 | drvc->instances = NULL; | |
39cfdd75 | 252 | |
811deee4 | 253 | return SR_OK; |
39cfdd75 BV |
254 | } |
255 | ||
40dda2c3 | 256 | static int hw_init(void) |
61136ea6 | 257 | { |
269971dd BV |
258 | struct drv_context *drvc; |
259 | ||
260 | if (!(drvc = g_try_malloc0(sizeof(struct drv_context)))) { | |
e98b7f1b | 261 | sr_err("Driver context malloc failed."); |
886a52b6 | 262 | return SR_ERR_MALLOC; |
269971dd | 263 | } |
61136ea6 | 264 | |
19b0cce3 | 265 | if (libusb_init(NULL) != 0) { |
269971dd | 266 | g_free(drvc); |
e98b7f1b | 267 | sr_err("Failed to initialize USB."); |
61136ea6 BV |
268 | return SR_ERR; |
269 | } | |
270 | ||
269971dd BV |
271 | hdi->priv = drvc; |
272 | ||
61136ea6 BV |
273 | return SR_OK; |
274 | } | |
275 | ||
39cfdd75 | 276 | static GSList *hw_scan(GSList *options) |
3b533202 BV |
277 | { |
278 | struct sr_dev_inst *sdi; | |
62bb8840 | 279 | const struct dso_profile *prof; |
269971dd BV |
280 | struct drv_context *drvc; |
281 | struct dev_context *devc; | |
39cfdd75 BV |
282 | GSList *devices; |
283 | struct libusb_device_descriptor des; | |
3b533202 | 284 | libusb_device **devlist; |
61136ea6 | 285 | int devcnt, ret, i, j; |
3b533202 | 286 | |
39cfdd75 | 287 | (void)options; |
e98b7f1b | 288 | |
3b533202 | 289 | devcnt = 0; |
39cfdd75 | 290 | devices = 0; |
269971dd BV |
291 | drvc = hdi->priv; |
292 | drvc->instances = NULL; | |
39cfdd75 BV |
293 | |
294 | clear_instances(); | |
295 | ||
296 | /* Find all Hantek DSO devices and upload firmware to all of them. */ | |
19b0cce3 | 297 | libusb_get_device_list(NULL, &devlist); |
3b533202 | 298 | for (i = 0; devlist[i]; i++) { |
61136ea6 | 299 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { |
e98b7f1b | 300 | sr_err("Failed to get device descriptor: %d.", ret); |
3b533202 BV |
301 | continue; |
302 | } | |
303 | ||
304 | prof = NULL; | |
305 | for (j = 0; dev_profiles[j].orig_vid; j++) { | |
306 | if (des.idVendor == dev_profiles[j].orig_vid | |
307 | && des.idProduct == dev_profiles[j].orig_pid) { | |
308 | /* Device matches the pre-firmware profile. */ | |
309 | prof = &dev_profiles[j]; | |
e98b7f1b | 310 | sr_dbg("Found a %s %s.", prof->vendor, prof->model); |
3b533202 | 311 | sdi = dso_dev_new(devcnt, prof); |
39cfdd75 | 312 | devices = g_slist_append(devices, sdi); |
269971dd | 313 | devc = sdi->priv; |
3b533202 BV |
314 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, |
315 | prof->firmware) == SR_OK) | |
316 | /* Remember when the firmware on this device was updated */ | |
269971dd | 317 | devc->fw_updated = g_get_monotonic_time(); |
3b533202 | 318 | else |
e98b7f1b UH |
319 | sr_err("Firmware upload failed for " |
320 | "device %d.", devcnt); | |
3b533202 | 321 | /* Dummy USB address of 0xff will get overwritten later. */ |
269971dd | 322 | devc->usb = sr_usb_dev_inst_new( |
3b533202 BV |
323 | libusb_get_bus_number(devlist[i]), 0xff, NULL); |
324 | devcnt++; | |
325 | break; | |
326 | } else if (des.idVendor == dev_profiles[j].fw_vid | |
327 | && des.idProduct == dev_profiles[j].fw_pid) { | |
328 | /* Device matches the post-firmware profile. */ | |
329 | prof = &dev_profiles[j]; | |
e98b7f1b | 330 | sr_dbg("Found a %s %s.", prof->vendor, prof->model); |
3b533202 BV |
331 | sdi = dso_dev_new(devcnt, prof); |
332 | sdi->status = SR_ST_INACTIVE; | |
39cfdd75 | 333 | devices = g_slist_append(devices, sdi); |
269971dd BV |
334 | devc = sdi->priv; |
335 | devc->usb = sr_usb_dev_inst_new( | |
3b533202 BV |
336 | libusb_get_bus_number(devlist[i]), |
337 | libusb_get_device_address(devlist[i]), NULL); | |
338 | devcnt++; | |
339 | break; | |
340 | } | |
341 | } | |
342 | if (!prof) | |
343 | /* not a supported VID/PID */ | |
344 | continue; | |
345 | } | |
346 | libusb_free_device_list(devlist, 1); | |
347 | ||
39cfdd75 | 348 | return devices; |
3b533202 BV |
349 | } |
350 | ||
811deee4 BV |
351 | static GSList *hw_dev_list(void) |
352 | { | |
353 | struct drv_context *drvc; | |
354 | ||
355 | drvc = hdi->priv; | |
356 | ||
357 | return drvc->instances; | |
358 | } | |
359 | ||
25a0f108 | 360 | static int hw_dev_open(struct sr_dev_inst *sdi) |
3b533202 | 361 | { |
269971dd | 362 | struct dev_context *devc; |
fc8fe3e3 BV |
363 | int64_t timediff_us, timediff_ms; |
364 | int err; | |
3b533202 | 365 | |
269971dd | 366 | devc = sdi->priv; |
3b533202 BV |
367 | |
368 | /* | |
e98b7f1b UH |
369 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS |
370 | * for the FX2 to renumerate. | |
3b533202 | 371 | */ |
fc8fe3e3 | 372 | err = SR_ERR; |
269971dd | 373 | if (devc->fw_updated > 0) { |
e98b7f1b UH |
374 | sr_info("Waiting for device to reset."); |
375 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ | |
3b533202 | 376 | g_usleep(300 * 1000); |
fc8fe3e3 BV |
377 | timediff_ms = 0; |
378 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
25a0f108 | 379 | if ((err = dso_open(sdi)) == SR_OK) |
3b533202 BV |
380 | break; |
381 | g_usleep(100 * 1000); | |
269971dd | 382 | timediff_us = g_get_monotonic_time() - devc->fw_updated; |
fc8fe3e3 | 383 | timediff_ms = timediff_us / 1000; |
e98b7f1b | 384 | sr_spew("Waited %" PRIi64 " ms.", timediff_ms); |
3b533202 | 385 | } |
e98b7f1b | 386 | sr_info("Device came back after %d ms.", timediff_ms); |
3b533202 | 387 | } else { |
25a0f108 | 388 | err = dso_open(sdi); |
3b533202 BV |
389 | } |
390 | ||
391 | if (err != SR_OK) { | |
e98b7f1b | 392 | sr_err("Unable to open device."); |
3b533202 BV |
393 | return SR_ERR; |
394 | } | |
395 | ||
269971dd | 396 | err = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE); |
3b533202 | 397 | if (err != 0) { |
e98b7f1b | 398 | sr_err("Unable to claim interface: %d.", err); |
3b533202 BV |
399 | return SR_ERR; |
400 | } | |
401 | ||
402 | return SR_OK; | |
403 | } | |
404 | ||
25a0f108 | 405 | static int hw_dev_close(struct sr_dev_inst *sdi) |
3b533202 | 406 | { |
3b533202 BV |
407 | dso_close(sdi); |
408 | ||
409 | return SR_OK; | |
410 | } | |
411 | ||
412 | static int hw_cleanup(void) | |
413 | { | |
269971dd BV |
414 | struct drv_context *drvc; |
415 | ||
416 | if (!(drvc = hdi->priv)) | |
417 | return SR_OK; | |
3b533202 | 418 | |
39cfdd75 | 419 | clear_instances(); |
3b533202 | 420 | |
19b0cce3 | 421 | libusb_exit(NULL); |
3b533202 BV |
422 | |
423 | return SR_OK; | |
424 | } | |
425 | ||
0b79bcbb | 426 | static int hw_info_get(int info_id, const void **data, |
e98b7f1b | 427 | const struct sr_dev_inst *sdi) |
3b533202 | 428 | { |
3b533202 BV |
429 | uint64_t tmp; |
430 | ||
6f57fd96 BV |
431 | (void)sdi; |
432 | ||
0b79bcbb | 433 | switch (info_id) { |
2ce9f046 BV |
434 | case SR_DI_HWCAPS: |
435 | *data = hwcaps; | |
436 | break; | |
3b533202 | 437 | case SR_DI_NUM_PROBES: |
0b79bcbb | 438 | *data = GINT_TO_POINTER(NUM_PROBES); |
3b533202 BV |
439 | break; |
440 | case SR_DI_PROBE_NAMES: | |
0b79bcbb | 441 | *data = probe_names; |
3b533202 | 442 | break; |
a370ef19 | 443 | case SR_DI_BUFFERSIZES: |
0b79bcbb | 444 | *data = buffersizes; |
a370ef19 BV |
445 | break; |
446 | case SR_DI_TIMEBASES: | |
0b79bcbb | 447 | *data = timebases; |
a370ef19 BV |
448 | break; |
449 | case SR_DI_TRIGGER_SOURCES: | |
0b79bcbb | 450 | *data = trigger_sources; |
a370ef19 | 451 | break; |
ebb781a6 | 452 | case SR_DI_FILTERS: |
0b79bcbb | 453 | *data = filter_targets; |
ebb781a6 | 454 | break; |
313deed2 | 455 | case SR_DI_VDIVS: |
0b79bcbb | 456 | *data = vdivs; |
313deed2 | 457 | break; |
4a090d72 | 458 | case SR_DI_COUPLING: |
0b79bcbb | 459 | *data = coupling; |
4a090d72 | 460 | break; |
3b533202 BV |
461 | /* TODO remove this */ |
462 | case SR_DI_CUR_SAMPLERATE: | |
0b79bcbb | 463 | *data = &tmp; |
3b533202 | 464 | break; |
b0c8d7ac BV |
465 | default: |
466 | return SR_ERR_ARG; | |
3b533202 BV |
467 | } |
468 | ||
0b79bcbb | 469 | return SR_OK; |
3b533202 BV |
470 | } |
471 | ||
6f4b1868 | 472 | static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap, |
e98b7f1b | 473 | const void *value) |
3b533202 | 474 | { |
269971dd | 475 | struct dev_context *devc; |
a370ef19 BV |
476 | struct sr_rational tmp_rat; |
477 | float tmp_float; | |
478 | uint64_t tmp_u64; | |
479 | int ret, i; | |
4a090d72 | 480 | char **targets; |
3b533202 | 481 | |
3b533202 BV |
482 | if (sdi->status != SR_ST_ACTIVE) |
483 | return SR_ERR; | |
484 | ||
a370ef19 | 485 | ret = SR_OK; |
269971dd | 486 | devc = sdi->priv; |
3b533202 | 487 | switch (hwcap) { |
ae88b97b | 488 | case SR_HWCAP_LIMIT_FRAMES: |
269971dd | 489 | devc->limit_frames = *(const uint64_t *)value; |
ae88b97b | 490 | break; |
a370ef19 | 491 | case SR_HWCAP_TRIGGER_SLOPE: |
62bb8840 | 492 | tmp_u64 = *(const int *)value; |
a370ef19 BV |
493 | if (tmp_u64 != SLOPE_NEGATIVE && tmp_u64 != SLOPE_POSITIVE) |
494 | ret = SR_ERR_ARG; | |
269971dd | 495 | devc->triggerslope = tmp_u64; |
a370ef19 BV |
496 | break; |
497 | case SR_HWCAP_HORIZ_TRIGGERPOS: | |
62bb8840 | 498 | tmp_float = *(const float *)value; |
a370ef19 | 499 | if (tmp_float < 0.0 || tmp_float > 1.0) { |
e98b7f1b | 500 | sr_err("Trigger position should be between 0.0 and 1.0."); |
3b533202 | 501 | ret = SR_ERR_ARG; |
a370ef19 | 502 | } else |
269971dd | 503 | devc->triggerposition = tmp_float; |
a370ef19 BV |
504 | break; |
505 | case SR_HWCAP_BUFFERSIZE: | |
62bb8840 | 506 | tmp_u64 = *(const int *)value; |
a370ef19 BV |
507 | for (i = 0; buffersizes[i]; i++) { |
508 | if (buffersizes[i] == tmp_u64) { | |
269971dd | 509 | devc->framesize = tmp_u64; |
a370ef19 BV |
510 | break; |
511 | } | |
512 | } | |
513 | if (buffersizes[i] == 0) | |
514 | ret = SR_ERR_ARG; | |
515 | break; | |
516 | case SR_HWCAP_TIMEBASE: | |
62bb8840 | 517 | tmp_rat = *(const struct sr_rational *)value; |
a370ef19 BV |
518 | for (i = 0; timebases[i].p && timebases[i].q; i++) { |
519 | if (timebases[i].p == tmp_rat.p | |
520 | && timebases[i].q == tmp_rat.q) { | |
269971dd | 521 | devc->timebase = i; |
a370ef19 BV |
522 | break; |
523 | } | |
524 | } | |
525 | if (timebases[i].p == 0 && timebases[i].q == 0) | |
526 | ret = SR_ERR_ARG; | |
527 | break; | |
528 | case SR_HWCAP_TRIGGER_SOURCE: | |
a370ef19 | 529 | for (i = 0; trigger_sources[i]; i++) { |
4a090d72 | 530 | if (!strcmp(value, trigger_sources[i])) { |
269971dd | 531 | devc->triggersource = g_strdup(value); |
a370ef19 BV |
532 | break; |
533 | } | |
534 | } | |
535 | if (trigger_sources[i] == 0) | |
536 | ret = SR_ERR_ARG; | |
537 | break; | |
ebb781a6 | 538 | case SR_HWCAP_FILTER: |
269971dd | 539 | devc->filter_ch1 = devc->filter_ch2 = devc->filter_trigger = 0; |
ebb781a6 BV |
540 | targets = g_strsplit(value, ",", 0); |
541 | for (i = 0; targets[i]; i++) { | |
542 | if (targets[i] == '\0') | |
543 | /* Empty filter string can be used to clear them all. */ | |
544 | ; | |
545 | else if (!strcmp(targets[i], "CH1")) | |
269971dd | 546 | devc->filter_ch1 = TRUE; |
ebb781a6 | 547 | else if (!strcmp(targets[i], "CH2")) |
269971dd | 548 | devc->filter_ch2 = TRUE; |
ebb781a6 | 549 | else if (!strcmp(targets[i], "TRIGGER")) |
269971dd | 550 | devc->filter_trigger = TRUE; |
ebb781a6 | 551 | else { |
e98b7f1b | 552 | sr_err("Invalid filter target %s.", targets[i]); |
ebb781a6 BV |
553 | ret = SR_ERR_ARG; |
554 | } | |
555 | } | |
556 | g_strfreev(targets); | |
557 | break; | |
313deed2 | 558 | case SR_HWCAP_VDIV: |
e98b7f1b | 559 | /* TODO: Not supporting vdiv per channel yet. */ |
62bb8840 | 560 | tmp_rat = *(const struct sr_rational *)value; |
313deed2 BV |
561 | for (i = 0; vdivs[i].p && vdivs[i].q; i++) { |
562 | if (vdivs[i].p == tmp_rat.p | |
563 | && vdivs[i].q == tmp_rat.q) { | |
269971dd BV |
564 | devc->voltage_ch1 = i; |
565 | devc->voltage_ch2 = i; | |
313deed2 BV |
566 | break; |
567 | } | |
568 | } | |
569 | if (vdivs[i].p == 0 && vdivs[i].q == 0) | |
570 | ret = SR_ERR_ARG; | |
571 | break; | |
b58fbd99 | 572 | case SR_HWCAP_COUPLING: |
e98b7f1b | 573 | /* TODO: Not supporting coupling per channel yet. */ |
b58fbd99 | 574 | for (i = 0; coupling[i]; i++) { |
4a090d72 | 575 | if (!strcmp(value, coupling[i])) { |
269971dd BV |
576 | devc->coupling_ch1 = i; |
577 | devc->coupling_ch2 = i; | |
b58fbd99 BV |
578 | break; |
579 | } | |
580 | } | |
581 | if (coupling[i] == 0) | |
582 | ret = SR_ERR_ARG; | |
583 | break; | |
3b533202 BV |
584 | default: |
585 | ret = SR_ERR_ARG; | |
e98b7f1b | 586 | break; |
3b533202 BV |
587 | } |
588 | ||
589 | return ret; | |
590 | } | |
591 | ||
269971dd | 592 | static void send_chunk(struct dev_context *devc, unsigned char *buf, |
e749a8cb | 593 | int num_samples) |
3b533202 BV |
594 | { |
595 | struct sr_datafeed_packet packet; | |
596 | struct sr_datafeed_analog analog; | |
c5841b28 | 597 | float ch1, ch2, range; |
6e71ef3b | 598 | int num_probes, data_offset, i; |
3b533202 | 599 | |
269971dd | 600 | num_probes = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; |
3b533202 BV |
601 | packet.type = SR_DF_ANALOG; |
602 | packet.payload = &analog; | |
6e71ef3b | 603 | /* TODO: support for 5xxx series 9-bit samples */ |
e749a8cb | 604 | analog.num_samples = num_samples; |
9956f285 UH |
605 | analog.mq = SR_MQ_VOLTAGE; |
606 | analog.unit = SR_UNIT_VOLT; | |
886a52b6 | 607 | /* TODO: Check malloc return value. */ |
6e71ef3b BV |
608 | analog.data = g_try_malloc(analog.num_samples * sizeof(float) * num_probes); |
609 | data_offset = 0; | |
3b533202 | 610 | for (i = 0; i < analog.num_samples; i++) { |
e98b7f1b UH |
611 | /* |
612 | * The device always sends data for both channels. If a channel | |
6e71ef3b | 613 | * is disabled, it contains a copy of the enabled channel's |
e98b7f1b UH |
614 | * data. However, we only send the requested channels to |
615 | * the bus. | |
c5841b28 | 616 | * |
e98b7f1b UH |
617 | * Voltage values are encoded as a value 0-255 (0-512 on the |
618 | * DSO-5200*), where the value is a point in the range | |
619 | * represented by the vdiv setting. There are 8 vertical divs, | |
620 | * so e.g. 500mV/div represents 4V peak-to-peak where 0 = -2V | |
621 | * and 255 = +2V. | |
6e71ef3b | 622 | */ |
e98b7f1b | 623 | /* TODO: Support for DSO-5xxx series 9-bit samples. */ |
269971dd BV |
624 | if (devc->ch1_enabled) { |
625 | range = ((float)vdivs[devc->voltage_ch1].p / vdivs[devc->voltage_ch1].q) * 8; | |
e749a8cb | 626 | ch1 = range / 255 * *(buf + i * 2 + 1); |
c5841b28 BV |
627 | /* Value is centered around 0V. */ |
628 | ch1 -= range / 2; | |
6e71ef3b BV |
629 | analog.data[data_offset++] = ch1; |
630 | } | |
269971dd BV |
631 | if (devc->ch2_enabled) { |
632 | range = ((float)vdivs[devc->voltage_ch2].p / vdivs[devc->voltage_ch2].q) * 8; | |
e749a8cb | 633 | ch2 = range / 255 * *(buf + i * 2); |
c5841b28 | 634 | ch2 -= range / 2; |
6e71ef3b BV |
635 | analog.data[data_offset++] = ch2; |
636 | } | |
3b533202 | 637 | } |
269971dd | 638 | sr_session_send(devc->cb_data, &packet); |
e749a8cb BV |
639 | } |
640 | ||
e98b7f1b UH |
641 | /* |
642 | * Called by libusb (as triggered by handle_event()) when a transfer comes in. | |
e749a8cb | 643 | * Only channel data comes in asynchronously, and all transfers for this are |
e98b7f1b | 644 | * queued up beforehand, so this just needs to chuck the incoming data onto |
e749a8cb BV |
645 | * the libsigrok session bus. |
646 | */ | |
647 | static void receive_transfer(struct libusb_transfer *transfer) | |
648 | { | |
649 | struct sr_datafeed_packet packet; | |
269971dd | 650 | struct dev_context *devc; |
e749a8cb BV |
651 | int num_samples, pre; |
652 | ||
269971dd | 653 | devc = transfer->user_data; |
e98b7f1b UH |
654 | sr_dbg("receive_transfer(): status %d received %d bytes.", |
655 | transfer->status, transfer->actual_length); | |
e749a8cb BV |
656 | |
657 | if (transfer->actual_length == 0) | |
658 | /* Nothing to send to the bus. */ | |
659 | return; | |
660 | ||
661 | num_samples = transfer->actual_length / 2; | |
662 | ||
e98b7f1b UH |
663 | sr_dbg("Got %d-%d/%d samples in frame.", devc->samp_received + 1, |
664 | devc->samp_received + num_samples, devc->framesize); | |
e749a8cb | 665 | |
e98b7f1b UH |
666 | /* |
667 | * The device always sends a full frame, but the beginning of the frame | |
e749a8cb BV |
668 | * doesn't represent the trigger point. The offset at which the trigger |
669 | * happened came in with the capture state, so we need to start sending | |
e98b7f1b UH |
670 | * from there up the session bus. The samples in the frame buffer |
671 | * before that trigger point came after the end of the device's frame | |
672 | * buffer was reached, and it wrapped around to overwrite up until the | |
673 | * trigger point. | |
e749a8cb | 674 | */ |
269971dd | 675 | if (devc->samp_received < devc->trigger_offset) { |
e749a8cb | 676 | /* Trigger point not yet reached. */ |
269971dd | 677 | if (devc->samp_received + num_samples < devc->trigger_offset) { |
e749a8cb | 678 | /* The entire chunk is before the trigger point. */ |
269971dd | 679 | memcpy(devc->framebuf + devc->samp_buffered * 2, |
e749a8cb | 680 | transfer->buffer, num_samples * 2); |
269971dd | 681 | devc->samp_buffered += num_samples; |
e749a8cb | 682 | } else { |
e98b7f1b UH |
683 | /* |
684 | * This chunk hits or overruns the trigger point. | |
e749a8cb | 685 | * Store the part before the trigger fired, and |
e98b7f1b UH |
686 | * send the rest up to the session bus. |
687 | */ | |
269971dd BV |
688 | pre = devc->trigger_offset - devc->samp_received; |
689 | memcpy(devc->framebuf + devc->samp_buffered * 2, | |
e749a8cb | 690 | transfer->buffer, pre * 2); |
269971dd | 691 | devc->samp_buffered += pre; |
e749a8cb BV |
692 | |
693 | /* The rest of this chunk starts with the trigger point. */ | |
e98b7f1b UH |
694 | sr_dbg("Reached trigger point, %d samples buffered.", |
695 | devc->samp_buffered); | |
e749a8cb BV |
696 | |
697 | /* Avoid the corner case where the chunk ended at | |
698 | * exactly the trigger point. */ | |
699 | if (num_samples > pre) | |
269971dd | 700 | send_chunk(devc, transfer->buffer + pre * 2, |
e749a8cb BV |
701 | num_samples - pre); |
702 | } | |
703 | } else { | |
704 | /* Already past the trigger point, just send it all out. */ | |
269971dd | 705 | send_chunk(devc, transfer->buffer, |
e749a8cb BV |
706 | num_samples); |
707 | } | |
708 | ||
269971dd | 709 | devc->samp_received += num_samples; |
e749a8cb BV |
710 | |
711 | /* Everything in this transfer was either copied to the buffer or | |
712 | * sent to the session bus. */ | |
3b533202 BV |
713 | g_free(transfer->buffer); |
714 | libusb_free_transfer(transfer); | |
3b533202 | 715 | |
269971dd | 716 | if (devc->samp_received >= devc->framesize) { |
e749a8cb BV |
717 | /* That was the last chunk in this frame. Send the buffered |
718 | * pre-trigger samples out now, in one big chunk. */ | |
e98b7f1b UH |
719 | sr_dbg("End of frame, sending %d pre-trigger buffered samples.", |
720 | devc->samp_buffered); | |
269971dd | 721 | send_chunk(devc, devc->framebuf, devc->samp_buffered); |
e749a8cb BV |
722 | |
723 | /* Mark the end of this frame. */ | |
ae88b97b | 724 | packet.type = SR_DF_FRAME_END; |
269971dd | 725 | sr_session_send(devc->cb_data, &packet); |
ae88b97b | 726 | |
269971dd | 727 | if (devc->limit_frames && ++devc->num_frames == devc->limit_frames) { |
ae88b97b | 728 | /* Terminate session */ |
a3508e33 | 729 | devc->dev_state = STOPPING; |
ae88b97b | 730 | } else { |
269971dd | 731 | devc->dev_state = NEW_CAPTURE; |
ae88b97b BV |
732 | } |
733 | } | |
3b533202 BV |
734 | } |
735 | ||
736 | static int handle_event(int fd, int revents, void *cb_data) | |
737 | { | |
a3508e33 | 738 | const struct sr_dev_inst *sdi; |
ae88b97b | 739 | struct sr_datafeed_packet packet; |
3b533202 | 740 | struct timeval tv; |
269971dd | 741 | struct dev_context *devc; |
a3508e33 BV |
742 | const struct libusb_pollfd **lupfd; |
743 | int num_probes, i; | |
6e6eeff4 BV |
744 | uint32_t trigger_offset; |
745 | uint8_t capturestate; | |
3b533202 | 746 | |
3b533202 BV |
747 | (void)fd; |
748 | (void)revents; | |
749 | ||
269971dd BV |
750 | sdi = cb_data; |
751 | devc = sdi->priv; | |
a3508e33 BV |
752 | if (devc->dev_state == STOPPING) { |
753 | /* We've been told to wind up the acquisition. */ | |
e98b7f1b UH |
754 | sr_dbg("Stopping acquisition."); |
755 | /* | |
756 | * TODO: Doesn't really cancel pending transfers so they might | |
757 | * come in after SR_DF_END is sent. | |
758 | */ | |
19b0cce3 | 759 | lupfd = libusb_get_pollfds(NULL); |
a3508e33 BV |
760 | for (i = 0; lupfd[i]; i++) |
761 | sr_source_remove(lupfd[i]->fd); | |
762 | free(lupfd); | |
763 | ||
764 | packet.type = SR_DF_END; | |
765 | sr_session_send(sdi, &packet); | |
766 | ||
767 | devc->dev_state = IDLE; | |
768 | ||
769 | return TRUE; | |
770 | } | |
771 | ||
3b533202 BV |
772 | /* Always handle pending libusb events. */ |
773 | tv.tv_sec = tv.tv_usec = 0; | |
19b0cce3 | 774 | libusb_handle_events_timeout(NULL, &tv); |
3b533202 | 775 | |
3b533202 | 776 | /* TODO: ugh */ |
269971dd BV |
777 | if (devc->dev_state == NEW_CAPTURE) { |
778 | if (dso_capture_start(devc) != SR_OK) | |
3b533202 | 779 | return TRUE; |
269971dd | 780 | if (dso_enable_trigger(devc) != SR_OK) |
3b533202 | 781 | return TRUE; |
269971dd | 782 | // if (dso_force_trigger(devc) != SR_OK) |
a370ef19 | 783 | // return TRUE; |
e98b7f1b | 784 | sr_dbg("Successfully requested next chunk."); |
269971dd | 785 | devc->dev_state = CAPTURE; |
3b533202 BV |
786 | return TRUE; |
787 | } | |
269971dd | 788 | if (devc->dev_state != CAPTURE) |
3b533202 BV |
789 | return TRUE; |
790 | ||
269971dd | 791 | if ((dso_get_capturestate(devc, &capturestate, &trigger_offset)) != SR_OK) |
3b533202 | 792 | return TRUE; |
3b533202 | 793 | |
e98b7f1b UH |
794 | sr_dbg("Capturestate %d.", capturestate); |
795 | sr_dbg("Trigger offset 0x%.6x.", trigger_offset); | |
3b533202 BV |
796 | switch (capturestate) { |
797 | case CAPTURE_EMPTY: | |
269971dd BV |
798 | if (++devc->capture_empty_count >= MAX_CAPTURE_EMPTY) { |
799 | devc->capture_empty_count = 0; | |
800 | if (dso_capture_start(devc) != SR_OK) | |
3b533202 | 801 | break; |
269971dd | 802 | if (dso_enable_trigger(devc) != SR_OK) |
3b533202 | 803 | break; |
269971dd | 804 | // if (dso_force_trigger(devc) != SR_OK) |
a370ef19 | 805 | // break; |
e98b7f1b | 806 | sr_dbg("Successfully requested next chunk."); |
3b533202 BV |
807 | } |
808 | break; | |
809 | case CAPTURE_FILLING: | |
e98b7f1b | 810 | /* No data yet. */ |
3b533202 BV |
811 | break; |
812 | case CAPTURE_READY_8BIT: | |
e749a8cb | 813 | /* Remember where in the captured frame the trigger is. */ |
269971dd | 814 | devc->trigger_offset = trigger_offset; |
e749a8cb | 815 | |
269971dd | 816 | num_probes = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; |
886a52b6 | 817 | /* TODO: Check malloc return value. */ |
269971dd BV |
818 | devc->framebuf = g_try_malloc(devc->framesize * num_probes * 2); |
819 | devc->samp_buffered = devc->samp_received = 0; | |
e749a8cb | 820 | |
3b533202 | 821 | /* Tell the scope to send us the first frame. */ |
269971dd | 822 | if (dso_get_channeldata(devc, receive_transfer) != SR_OK) |
3b533202 | 823 | break; |
ae88b97b | 824 | |
e98b7f1b UH |
825 | /* |
826 | * Don't hit the state machine again until we're done fetching | |
ae88b97b BV |
827 | * the data we just told the scope to send. |
828 | */ | |
269971dd | 829 | devc->dev_state = FETCH_DATA; |
ae88b97b BV |
830 | |
831 | /* Tell the frontend a new frame is on the way. */ | |
832 | packet.type = SR_DF_FRAME_BEGIN; | |
269971dd | 833 | sr_session_send(sdi, &packet); |
3b533202 BV |
834 | break; |
835 | case CAPTURE_READY_9BIT: | |
836 | /* TODO */ | |
e98b7f1b | 837 | sr_err("Not yet supported."); |
3b533202 BV |
838 | break; |
839 | case CAPTURE_TIMEOUT: | |
840 | /* Doesn't matter, we'll try again next time. */ | |
841 | break; | |
842 | default: | |
e98b7f1b UH |
843 | sr_dbg("Unknown capture state: %d.", capturestate); |
844 | break; | |
3b533202 BV |
845 | } |
846 | ||
847 | return TRUE; | |
848 | } | |
849 | ||
3ffb6964 | 850 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, |
e98b7f1b | 851 | void *cb_data) |
3b533202 BV |
852 | { |
853 | const struct libusb_pollfd **lupfd; | |
854 | struct sr_datafeed_packet packet; | |
855 | struct sr_datafeed_header header; | |
856 | struct sr_datafeed_meta_analog meta; | |
269971dd | 857 | struct dev_context *devc; |
3b533202 BV |
858 | int i; |
859 | ||
3b533202 BV |
860 | if (sdi->status != SR_ST_ACTIVE) |
861 | return SR_ERR; | |
862 | ||
269971dd BV |
863 | devc = sdi->priv; |
864 | devc->cb_data = cb_data; | |
3b533202 | 865 | |
014359e3 | 866 | if (configure_probes(sdi) != SR_OK) { |
e98b7f1b | 867 | sr_err("Failed to configure probes."); |
014359e3 BV |
868 | return SR_ERR; |
869 | } | |
870 | ||
269971dd | 871 | if (dso_init(devc) != SR_OK) |
3b533202 BV |
872 | return SR_ERR; |
873 | ||
269971dd | 874 | if (dso_capture_start(devc) != SR_OK) |
3b533202 BV |
875 | return SR_ERR; |
876 | ||
269971dd | 877 | devc->dev_state = CAPTURE; |
19b0cce3 | 878 | lupfd = libusb_get_pollfds(NULL); |
3b533202 | 879 | for (i = 0; lupfd[i]; i++) |
e98b7f1b UH |
880 | sr_source_add(lupfd[i]->fd, lupfd[i]->events, TICK, |
881 | handle_event, (void *)sdi); | |
3b533202 BV |
882 | free(lupfd); |
883 | ||
884 | /* Send header packet to the session bus. */ | |
885 | packet.type = SR_DF_HEADER; | |
886 | packet.payload = (unsigned char *)&header; | |
887 | header.feed_version = 1; | |
888 | gettimeofday(&header.starttime, NULL); | |
889 | sr_session_send(cb_data, &packet); | |
890 | ||
891 | /* Send metadata about the SR_DF_ANALOG packets to come. */ | |
892 | packet.type = SR_DF_META_ANALOG; | |
893 | packet.payload = &meta; | |
88a13f30 | 894 | meta.num_probes = NUM_PROBES; |
3b533202 BV |
895 | sr_session_send(cb_data, &packet); |
896 | ||
897 | return SR_OK; | |
898 | } | |
899 | ||
69b07d14 | 900 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
3b533202 | 901 | { |
269971dd BV |
902 | struct dev_context *devc; |
903 | ||
904 | (void)cb_data; | |
3b533202 | 905 | |
3b533202 BV |
906 | if (sdi->status != SR_ST_ACTIVE) |
907 | return SR_ERR; | |
908 | ||
a3508e33 BV |
909 | devc = sdi->priv; |
910 | devc->dev_state = STOPPING; | |
3b533202 BV |
911 | |
912 | return SR_OK; | |
913 | } | |
914 | ||
62bb8840 | 915 | SR_PRIV struct sr_dev_driver hantek_dso_driver_info = { |
3b533202 BV |
916 | .name = "hantek-dso", |
917 | .longname = "Hantek DSO", | |
918 | .api_version = 1, | |
919 | .init = hw_init, | |
920 | .cleanup = hw_cleanup, | |
61136ea6 | 921 | .scan = hw_scan, |
811deee4 BV |
922 | .dev_list = hw_dev_list, |
923 | .dev_clear = clear_instances, | |
3b533202 BV |
924 | .dev_open = hw_dev_open, |
925 | .dev_close = hw_dev_close, | |
0b79bcbb | 926 | .info_get = hw_info_get, |
3b533202 | 927 | .dev_config_set = hw_dev_config_set, |
62bb8840 UH |
928 | .dev_acquisition_start = hw_dev_acquisition_start, |
929 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
269971dd | 930 | .priv = NULL, |
3b533202 | 931 | }; |