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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 | ||
34f06b90 | 256 | static int hw_init(struct sr_context *sr_ctx) |
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 | |
1ebe4b4e | 265 | drvc->sr_ctx = sr_ctx; |
269971dd BV |
266 | hdi->priv = drvc; |
267 | ||
61136ea6 BV |
268 | return SR_OK; |
269 | } | |
270 | ||
39cfdd75 | 271 | static GSList *hw_scan(GSList *options) |
3b533202 BV |
272 | { |
273 | struct sr_dev_inst *sdi; | |
62bb8840 | 274 | const struct dso_profile *prof; |
269971dd BV |
275 | struct drv_context *drvc; |
276 | struct dev_context *devc; | |
39cfdd75 BV |
277 | GSList *devices; |
278 | struct libusb_device_descriptor des; | |
3b533202 | 279 | libusb_device **devlist; |
61136ea6 | 280 | int devcnt, ret, i, j; |
3b533202 | 281 | |
39cfdd75 | 282 | (void)options; |
e98b7f1b | 283 | |
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. */ | |
d4abb463 | 292 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
3b533202 | 293 | for (i = 0; devlist[i]; i++) { |
61136ea6 | 294 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { |
e98b7f1b | 295 | sr_err("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]; | |
e98b7f1b | 305 | sr_dbg("Found a %s %s.", prof->vendor, prof->model); |
3b533202 | 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 | 313 | else |
e98b7f1b UH |
314 | sr_err("Firmware upload failed for " |
315 | "device %d.", devcnt); | |
3b533202 | 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]; | |
e98b7f1b | 325 | sr_dbg("Found a %s %s.", prof->vendor, prof->model); |
3b533202 BV |
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 | ||
811deee4 BV |
346 | static GSList *hw_dev_list(void) |
347 | { | |
348 | struct drv_context *drvc; | |
349 | ||
350 | drvc = hdi->priv; | |
351 | ||
352 | return drvc->instances; | |
353 | } | |
354 | ||
25a0f108 | 355 | static int hw_dev_open(struct sr_dev_inst *sdi) |
3b533202 | 356 | { |
269971dd | 357 | struct dev_context *devc; |
fc8fe3e3 BV |
358 | int64_t timediff_us, timediff_ms; |
359 | int err; | |
3b533202 | 360 | |
269971dd | 361 | devc = sdi->priv; |
3b533202 BV |
362 | |
363 | /* | |
e98b7f1b UH |
364 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS |
365 | * for the FX2 to renumerate. | |
3b533202 | 366 | */ |
fc8fe3e3 | 367 | err = SR_ERR; |
269971dd | 368 | if (devc->fw_updated > 0) { |
e98b7f1b UH |
369 | sr_info("Waiting for device to reset."); |
370 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ | |
3b533202 | 371 | g_usleep(300 * 1000); |
fc8fe3e3 BV |
372 | timediff_ms = 0; |
373 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
25a0f108 | 374 | if ((err = dso_open(sdi)) == SR_OK) |
3b533202 BV |
375 | break; |
376 | g_usleep(100 * 1000); | |
269971dd | 377 | timediff_us = g_get_monotonic_time() - devc->fw_updated; |
fc8fe3e3 | 378 | timediff_ms = timediff_us / 1000; |
e98b7f1b | 379 | sr_spew("Waited %" PRIi64 " ms.", timediff_ms); |
3b533202 | 380 | } |
e98b7f1b | 381 | sr_info("Device came back after %d ms.", timediff_ms); |
3b533202 | 382 | } else { |
25a0f108 | 383 | err = dso_open(sdi); |
3b533202 BV |
384 | } |
385 | ||
386 | if (err != SR_OK) { | |
e98b7f1b | 387 | sr_err("Unable to open device."); |
3b533202 BV |
388 | return SR_ERR; |
389 | } | |
390 | ||
269971dd | 391 | err = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE); |
3b533202 | 392 | if (err != 0) { |
e98b7f1b | 393 | sr_err("Unable to claim interface: %d.", err); |
3b533202 BV |
394 | return SR_ERR; |
395 | } | |
396 | ||
397 | return SR_OK; | |
398 | } | |
399 | ||
25a0f108 | 400 | static int hw_dev_close(struct sr_dev_inst *sdi) |
3b533202 | 401 | { |
3b533202 BV |
402 | dso_close(sdi); |
403 | ||
404 | return SR_OK; | |
405 | } | |
406 | ||
407 | static int hw_cleanup(void) | |
408 | { | |
269971dd BV |
409 | struct drv_context *drvc; |
410 | ||
411 | if (!(drvc = hdi->priv)) | |
412 | return SR_OK; | |
3b533202 | 413 | |
39cfdd75 | 414 | clear_instances(); |
3b533202 | 415 | |
3b533202 BV |
416 | return SR_OK; |
417 | } | |
418 | ||
0b79bcbb | 419 | static int hw_info_get(int info_id, const void **data, |
e98b7f1b | 420 | const struct sr_dev_inst *sdi) |
3b533202 | 421 | { |
3b533202 BV |
422 | uint64_t tmp; |
423 | ||
6f57fd96 BV |
424 | (void)sdi; |
425 | ||
0b79bcbb | 426 | switch (info_id) { |
2ce9f046 BV |
427 | case SR_DI_HWCAPS: |
428 | *data = hwcaps; | |
429 | break; | |
3b533202 | 430 | case SR_DI_NUM_PROBES: |
0b79bcbb | 431 | *data = GINT_TO_POINTER(NUM_PROBES); |
3b533202 BV |
432 | break; |
433 | case SR_DI_PROBE_NAMES: | |
0b79bcbb | 434 | *data = probe_names; |
3b533202 | 435 | break; |
a370ef19 | 436 | case SR_DI_BUFFERSIZES: |
0b79bcbb | 437 | *data = buffersizes; |
a370ef19 BV |
438 | break; |
439 | case SR_DI_TIMEBASES: | |
0b79bcbb | 440 | *data = timebases; |
a370ef19 BV |
441 | break; |
442 | case SR_DI_TRIGGER_SOURCES: | |
0b79bcbb | 443 | *data = trigger_sources; |
a370ef19 | 444 | break; |
ebb781a6 | 445 | case SR_DI_FILTERS: |
0b79bcbb | 446 | *data = filter_targets; |
ebb781a6 | 447 | break; |
313deed2 | 448 | case SR_DI_VDIVS: |
0b79bcbb | 449 | *data = vdivs; |
313deed2 | 450 | break; |
4a090d72 | 451 | case SR_DI_COUPLING: |
0b79bcbb | 452 | *data = coupling; |
4a090d72 | 453 | break; |
3b533202 BV |
454 | /* TODO remove this */ |
455 | case SR_DI_CUR_SAMPLERATE: | |
0b79bcbb | 456 | *data = &tmp; |
3b533202 | 457 | break; |
b0c8d7ac BV |
458 | default: |
459 | return SR_ERR_ARG; | |
3b533202 BV |
460 | } |
461 | ||
0b79bcbb | 462 | return SR_OK; |
3b533202 BV |
463 | } |
464 | ||
6f4b1868 | 465 | static int hw_dev_config_set(const struct sr_dev_inst *sdi, int hwcap, |
e98b7f1b | 466 | const void *value) |
3b533202 | 467 | { |
269971dd | 468 | struct dev_context *devc; |
a370ef19 BV |
469 | struct sr_rational tmp_rat; |
470 | float tmp_float; | |
471 | uint64_t tmp_u64; | |
472 | int ret, i; | |
4a090d72 | 473 | char **targets; |
3b533202 | 474 | |
3b533202 BV |
475 | if (sdi->status != SR_ST_ACTIVE) |
476 | return SR_ERR; | |
477 | ||
a370ef19 | 478 | ret = SR_OK; |
269971dd | 479 | devc = sdi->priv; |
3b533202 | 480 | switch (hwcap) { |
ae88b97b | 481 | case SR_HWCAP_LIMIT_FRAMES: |
269971dd | 482 | devc->limit_frames = *(const uint64_t *)value; |
ae88b97b | 483 | break; |
a370ef19 | 484 | case SR_HWCAP_TRIGGER_SLOPE: |
62bb8840 | 485 | tmp_u64 = *(const int *)value; |
a370ef19 BV |
486 | if (tmp_u64 != SLOPE_NEGATIVE && tmp_u64 != SLOPE_POSITIVE) |
487 | ret = SR_ERR_ARG; | |
269971dd | 488 | devc->triggerslope = tmp_u64; |
a370ef19 BV |
489 | break; |
490 | case SR_HWCAP_HORIZ_TRIGGERPOS: | |
62bb8840 | 491 | tmp_float = *(const float *)value; |
a370ef19 | 492 | if (tmp_float < 0.0 || tmp_float > 1.0) { |
e98b7f1b | 493 | sr_err("Trigger position should be between 0.0 and 1.0."); |
3b533202 | 494 | ret = SR_ERR_ARG; |
a370ef19 | 495 | } else |
269971dd | 496 | devc->triggerposition = tmp_float; |
a370ef19 BV |
497 | break; |
498 | case SR_HWCAP_BUFFERSIZE: | |
62bb8840 | 499 | tmp_u64 = *(const int *)value; |
a370ef19 BV |
500 | for (i = 0; buffersizes[i]; i++) { |
501 | if (buffersizes[i] == tmp_u64) { | |
269971dd | 502 | devc->framesize = tmp_u64; |
a370ef19 BV |
503 | break; |
504 | } | |
505 | } | |
506 | if (buffersizes[i] == 0) | |
507 | ret = SR_ERR_ARG; | |
508 | break; | |
509 | case SR_HWCAP_TIMEBASE: | |
62bb8840 | 510 | tmp_rat = *(const struct sr_rational *)value; |
a370ef19 BV |
511 | for (i = 0; timebases[i].p && timebases[i].q; i++) { |
512 | if (timebases[i].p == tmp_rat.p | |
513 | && timebases[i].q == tmp_rat.q) { | |
269971dd | 514 | devc->timebase = i; |
a370ef19 BV |
515 | break; |
516 | } | |
517 | } | |
518 | if (timebases[i].p == 0 && timebases[i].q == 0) | |
519 | ret = SR_ERR_ARG; | |
520 | break; | |
521 | case SR_HWCAP_TRIGGER_SOURCE: | |
a370ef19 | 522 | for (i = 0; trigger_sources[i]; i++) { |
4a090d72 | 523 | if (!strcmp(value, trigger_sources[i])) { |
269971dd | 524 | devc->triggersource = g_strdup(value); |
a370ef19 BV |
525 | break; |
526 | } | |
527 | } | |
528 | if (trigger_sources[i] == 0) | |
529 | ret = SR_ERR_ARG; | |
530 | break; | |
ebb781a6 | 531 | case SR_HWCAP_FILTER: |
269971dd | 532 | devc->filter_ch1 = devc->filter_ch2 = devc->filter_trigger = 0; |
ebb781a6 BV |
533 | targets = g_strsplit(value, ",", 0); |
534 | for (i = 0; targets[i]; i++) { | |
535 | if (targets[i] == '\0') | |
536 | /* Empty filter string can be used to clear them all. */ | |
537 | ; | |
538 | else if (!strcmp(targets[i], "CH1")) | |
269971dd | 539 | devc->filter_ch1 = TRUE; |
ebb781a6 | 540 | else if (!strcmp(targets[i], "CH2")) |
269971dd | 541 | devc->filter_ch2 = TRUE; |
ebb781a6 | 542 | else if (!strcmp(targets[i], "TRIGGER")) |
269971dd | 543 | devc->filter_trigger = TRUE; |
ebb781a6 | 544 | else { |
e98b7f1b | 545 | sr_err("Invalid filter target %s.", targets[i]); |
ebb781a6 BV |
546 | ret = SR_ERR_ARG; |
547 | } | |
548 | } | |
549 | g_strfreev(targets); | |
550 | break; | |
313deed2 | 551 | case SR_HWCAP_VDIV: |
e98b7f1b | 552 | /* TODO: Not supporting vdiv per channel yet. */ |
62bb8840 | 553 | tmp_rat = *(const struct sr_rational *)value; |
313deed2 BV |
554 | for (i = 0; vdivs[i].p && vdivs[i].q; i++) { |
555 | if (vdivs[i].p == tmp_rat.p | |
556 | && vdivs[i].q == tmp_rat.q) { | |
269971dd BV |
557 | devc->voltage_ch1 = i; |
558 | devc->voltage_ch2 = i; | |
313deed2 BV |
559 | break; |
560 | } | |
561 | } | |
562 | if (vdivs[i].p == 0 && vdivs[i].q == 0) | |
563 | ret = SR_ERR_ARG; | |
564 | break; | |
b58fbd99 | 565 | case SR_HWCAP_COUPLING: |
e98b7f1b | 566 | /* TODO: Not supporting coupling per channel yet. */ |
b58fbd99 | 567 | for (i = 0; coupling[i]; i++) { |
4a090d72 | 568 | if (!strcmp(value, coupling[i])) { |
269971dd BV |
569 | devc->coupling_ch1 = i; |
570 | devc->coupling_ch2 = i; | |
b58fbd99 BV |
571 | break; |
572 | } | |
573 | } | |
574 | if (coupling[i] == 0) | |
575 | ret = SR_ERR_ARG; | |
576 | break; | |
3b533202 BV |
577 | default: |
578 | ret = SR_ERR_ARG; | |
e98b7f1b | 579 | break; |
3b533202 BV |
580 | } |
581 | ||
582 | return ret; | |
583 | } | |
584 | ||
269971dd | 585 | static void send_chunk(struct dev_context *devc, unsigned char *buf, |
e749a8cb | 586 | int num_samples) |
3b533202 BV |
587 | { |
588 | struct sr_datafeed_packet packet; | |
589 | struct sr_datafeed_analog analog; | |
c5841b28 | 590 | float ch1, ch2, range; |
6e71ef3b | 591 | int num_probes, data_offset, i; |
3b533202 | 592 | |
269971dd | 593 | num_probes = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; |
3b533202 BV |
594 | packet.type = SR_DF_ANALOG; |
595 | packet.payload = &analog; | |
6e71ef3b | 596 | /* TODO: support for 5xxx series 9-bit samples */ |
e749a8cb | 597 | analog.num_samples = num_samples; |
9956f285 UH |
598 | analog.mq = SR_MQ_VOLTAGE; |
599 | analog.unit = SR_UNIT_VOLT; | |
886a52b6 | 600 | /* TODO: Check malloc return value. */ |
6e71ef3b BV |
601 | analog.data = g_try_malloc(analog.num_samples * sizeof(float) * num_probes); |
602 | data_offset = 0; | |
3b533202 | 603 | for (i = 0; i < analog.num_samples; i++) { |
e98b7f1b UH |
604 | /* |
605 | * The device always sends data for both channels. If a channel | |
6e71ef3b | 606 | * is disabled, it contains a copy of the enabled channel's |
e98b7f1b UH |
607 | * data. However, we only send the requested channels to |
608 | * the bus. | |
c5841b28 | 609 | * |
e98b7f1b UH |
610 | * Voltage values are encoded as a value 0-255 (0-512 on the |
611 | * DSO-5200*), where the value is a point in the range | |
612 | * represented by the vdiv setting. There are 8 vertical divs, | |
613 | * so e.g. 500mV/div represents 4V peak-to-peak where 0 = -2V | |
614 | * and 255 = +2V. | |
6e71ef3b | 615 | */ |
e98b7f1b | 616 | /* TODO: Support for DSO-5xxx series 9-bit samples. */ |
269971dd BV |
617 | if (devc->ch1_enabled) { |
618 | range = ((float)vdivs[devc->voltage_ch1].p / vdivs[devc->voltage_ch1].q) * 8; | |
e749a8cb | 619 | ch1 = range / 255 * *(buf + i * 2 + 1); |
c5841b28 BV |
620 | /* Value is centered around 0V. */ |
621 | ch1 -= range / 2; | |
6e71ef3b BV |
622 | analog.data[data_offset++] = ch1; |
623 | } | |
269971dd BV |
624 | if (devc->ch2_enabled) { |
625 | range = ((float)vdivs[devc->voltage_ch2].p / vdivs[devc->voltage_ch2].q) * 8; | |
e749a8cb | 626 | ch2 = range / 255 * *(buf + i * 2); |
c5841b28 | 627 | ch2 -= range / 2; |
6e71ef3b BV |
628 | analog.data[data_offset++] = ch2; |
629 | } | |
3b533202 | 630 | } |
269971dd | 631 | sr_session_send(devc->cb_data, &packet); |
e749a8cb BV |
632 | } |
633 | ||
e98b7f1b UH |
634 | /* |
635 | * Called by libusb (as triggered by handle_event()) when a transfer comes in. | |
e749a8cb | 636 | * Only channel data comes in asynchronously, and all transfers for this are |
e98b7f1b | 637 | * queued up beforehand, so this just needs to chuck the incoming data onto |
e749a8cb BV |
638 | * the libsigrok session bus. |
639 | */ | |
640 | static void receive_transfer(struct libusb_transfer *transfer) | |
641 | { | |
642 | struct sr_datafeed_packet packet; | |
269971dd | 643 | struct dev_context *devc; |
e749a8cb BV |
644 | int num_samples, pre; |
645 | ||
269971dd | 646 | devc = transfer->user_data; |
e98b7f1b UH |
647 | sr_dbg("receive_transfer(): status %d received %d bytes.", |
648 | transfer->status, transfer->actual_length); | |
e749a8cb BV |
649 | |
650 | if (transfer->actual_length == 0) | |
651 | /* Nothing to send to the bus. */ | |
652 | return; | |
653 | ||
654 | num_samples = transfer->actual_length / 2; | |
655 | ||
e98b7f1b UH |
656 | sr_dbg("Got %d-%d/%d samples in frame.", devc->samp_received + 1, |
657 | devc->samp_received + num_samples, devc->framesize); | |
e749a8cb | 658 | |
e98b7f1b UH |
659 | /* |
660 | * The device always sends a full frame, but the beginning of the frame | |
e749a8cb BV |
661 | * doesn't represent the trigger point. The offset at which the trigger |
662 | * happened came in with the capture state, so we need to start sending | |
e98b7f1b UH |
663 | * from there up the session bus. The samples in the frame buffer |
664 | * before that trigger point came after the end of the device's frame | |
665 | * buffer was reached, and it wrapped around to overwrite up until the | |
666 | * trigger point. | |
e749a8cb | 667 | */ |
269971dd | 668 | if (devc->samp_received < devc->trigger_offset) { |
e749a8cb | 669 | /* Trigger point not yet reached. */ |
269971dd | 670 | if (devc->samp_received + num_samples < devc->trigger_offset) { |
e749a8cb | 671 | /* The entire chunk is before the trigger point. */ |
269971dd | 672 | memcpy(devc->framebuf + devc->samp_buffered * 2, |
e749a8cb | 673 | transfer->buffer, num_samples * 2); |
269971dd | 674 | devc->samp_buffered += num_samples; |
e749a8cb | 675 | } else { |
e98b7f1b UH |
676 | /* |
677 | * This chunk hits or overruns the trigger point. | |
e749a8cb | 678 | * Store the part before the trigger fired, and |
e98b7f1b UH |
679 | * send the rest up to the session bus. |
680 | */ | |
269971dd BV |
681 | pre = devc->trigger_offset - devc->samp_received; |
682 | memcpy(devc->framebuf + devc->samp_buffered * 2, | |
e749a8cb | 683 | transfer->buffer, pre * 2); |
269971dd | 684 | devc->samp_buffered += pre; |
e749a8cb BV |
685 | |
686 | /* The rest of this chunk starts with the trigger point. */ | |
e98b7f1b UH |
687 | sr_dbg("Reached trigger point, %d samples buffered.", |
688 | devc->samp_buffered); | |
e749a8cb BV |
689 | |
690 | /* Avoid the corner case where the chunk ended at | |
691 | * exactly the trigger point. */ | |
692 | if (num_samples > pre) | |
269971dd | 693 | send_chunk(devc, transfer->buffer + pre * 2, |
e749a8cb BV |
694 | num_samples - pre); |
695 | } | |
696 | } else { | |
697 | /* Already past the trigger point, just send it all out. */ | |
269971dd | 698 | send_chunk(devc, transfer->buffer, |
e749a8cb BV |
699 | num_samples); |
700 | } | |
701 | ||
269971dd | 702 | devc->samp_received += num_samples; |
e749a8cb BV |
703 | |
704 | /* Everything in this transfer was either copied to the buffer or | |
705 | * sent to the session bus. */ | |
3b533202 BV |
706 | g_free(transfer->buffer); |
707 | libusb_free_transfer(transfer); | |
3b533202 | 708 | |
269971dd | 709 | if (devc->samp_received >= devc->framesize) { |
e749a8cb BV |
710 | /* That was the last chunk in this frame. Send the buffered |
711 | * pre-trigger samples out now, in one big chunk. */ | |
e98b7f1b UH |
712 | sr_dbg("End of frame, sending %d pre-trigger buffered samples.", |
713 | devc->samp_buffered); | |
269971dd | 714 | send_chunk(devc, devc->framebuf, devc->samp_buffered); |
e749a8cb BV |
715 | |
716 | /* Mark the end of this frame. */ | |
ae88b97b | 717 | packet.type = SR_DF_FRAME_END; |
269971dd | 718 | sr_session_send(devc->cb_data, &packet); |
ae88b97b | 719 | |
269971dd | 720 | if (devc->limit_frames && ++devc->num_frames == devc->limit_frames) { |
ae88b97b | 721 | /* Terminate session */ |
a3508e33 | 722 | devc->dev_state = STOPPING; |
ae88b97b | 723 | } else { |
269971dd | 724 | devc->dev_state = NEW_CAPTURE; |
ae88b97b BV |
725 | } |
726 | } | |
3b533202 BV |
727 | } |
728 | ||
729 | static int handle_event(int fd, int revents, void *cb_data) | |
730 | { | |
a3508e33 | 731 | const struct sr_dev_inst *sdi; |
ae88b97b | 732 | struct sr_datafeed_packet packet; |
3b533202 | 733 | struct timeval tv; |
269971dd | 734 | struct dev_context *devc; |
d4abb463 | 735 | struct drv_context *drvc = hdi->priv; |
a3508e33 BV |
736 | const struct libusb_pollfd **lupfd; |
737 | int num_probes, i; | |
6e6eeff4 BV |
738 | uint32_t trigger_offset; |
739 | uint8_t capturestate; | |
3b533202 | 740 | |
3b533202 BV |
741 | (void)fd; |
742 | (void)revents; | |
743 | ||
269971dd BV |
744 | sdi = cb_data; |
745 | devc = sdi->priv; | |
a3508e33 BV |
746 | if (devc->dev_state == STOPPING) { |
747 | /* We've been told to wind up the acquisition. */ | |
e98b7f1b UH |
748 | sr_dbg("Stopping acquisition."); |
749 | /* | |
750 | * TODO: Doesn't really cancel pending transfers so they might | |
751 | * come in after SR_DF_END is sent. | |
752 | */ | |
d4abb463 | 753 | lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx); |
a3508e33 BV |
754 | for (i = 0; lupfd[i]; i++) |
755 | sr_source_remove(lupfd[i]->fd); | |
756 | free(lupfd); | |
757 | ||
758 | packet.type = SR_DF_END; | |
759 | sr_session_send(sdi, &packet); | |
760 | ||
761 | devc->dev_state = IDLE; | |
762 | ||
763 | return TRUE; | |
764 | } | |
765 | ||
3b533202 BV |
766 | /* Always handle pending libusb events. */ |
767 | tv.tv_sec = tv.tv_usec = 0; | |
d4abb463 | 768 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); |
3b533202 | 769 | |
3b533202 | 770 | /* TODO: ugh */ |
269971dd BV |
771 | if (devc->dev_state == NEW_CAPTURE) { |
772 | if (dso_capture_start(devc) != SR_OK) | |
3b533202 | 773 | return TRUE; |
269971dd | 774 | if (dso_enable_trigger(devc) != SR_OK) |
3b533202 | 775 | return TRUE; |
269971dd | 776 | // if (dso_force_trigger(devc) != SR_OK) |
a370ef19 | 777 | // return TRUE; |
e98b7f1b | 778 | sr_dbg("Successfully requested next chunk."); |
269971dd | 779 | devc->dev_state = CAPTURE; |
3b533202 BV |
780 | return TRUE; |
781 | } | |
269971dd | 782 | if (devc->dev_state != CAPTURE) |
3b533202 BV |
783 | return TRUE; |
784 | ||
269971dd | 785 | if ((dso_get_capturestate(devc, &capturestate, &trigger_offset)) != SR_OK) |
3b533202 | 786 | return TRUE; |
3b533202 | 787 | |
e98b7f1b UH |
788 | sr_dbg("Capturestate %d.", capturestate); |
789 | sr_dbg("Trigger offset 0x%.6x.", trigger_offset); | |
3b533202 BV |
790 | switch (capturestate) { |
791 | case CAPTURE_EMPTY: | |
269971dd BV |
792 | if (++devc->capture_empty_count >= MAX_CAPTURE_EMPTY) { |
793 | devc->capture_empty_count = 0; | |
794 | if (dso_capture_start(devc) != SR_OK) | |
3b533202 | 795 | break; |
269971dd | 796 | if (dso_enable_trigger(devc) != SR_OK) |
3b533202 | 797 | break; |
269971dd | 798 | // if (dso_force_trigger(devc) != SR_OK) |
a370ef19 | 799 | // break; |
e98b7f1b | 800 | sr_dbg("Successfully requested next chunk."); |
3b533202 BV |
801 | } |
802 | break; | |
803 | case CAPTURE_FILLING: | |
e98b7f1b | 804 | /* No data yet. */ |
3b533202 BV |
805 | break; |
806 | case CAPTURE_READY_8BIT: | |
e749a8cb | 807 | /* Remember where in the captured frame the trigger is. */ |
269971dd | 808 | devc->trigger_offset = trigger_offset; |
e749a8cb | 809 | |
269971dd | 810 | num_probes = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; |
886a52b6 | 811 | /* TODO: Check malloc return value. */ |
269971dd BV |
812 | devc->framebuf = g_try_malloc(devc->framesize * num_probes * 2); |
813 | devc->samp_buffered = devc->samp_received = 0; | |
e749a8cb | 814 | |
3b533202 | 815 | /* Tell the scope to send us the first frame. */ |
269971dd | 816 | if (dso_get_channeldata(devc, receive_transfer) != SR_OK) |
3b533202 | 817 | break; |
ae88b97b | 818 | |
e98b7f1b UH |
819 | /* |
820 | * Don't hit the state machine again until we're done fetching | |
ae88b97b BV |
821 | * the data we just told the scope to send. |
822 | */ | |
269971dd | 823 | devc->dev_state = FETCH_DATA; |
ae88b97b BV |
824 | |
825 | /* Tell the frontend a new frame is on the way. */ | |
826 | packet.type = SR_DF_FRAME_BEGIN; | |
269971dd | 827 | sr_session_send(sdi, &packet); |
3b533202 BV |
828 | break; |
829 | case CAPTURE_READY_9BIT: | |
830 | /* TODO */ | |
e98b7f1b | 831 | sr_err("Not yet supported."); |
3b533202 BV |
832 | break; |
833 | case CAPTURE_TIMEOUT: | |
834 | /* Doesn't matter, we'll try again next time. */ | |
835 | break; | |
836 | default: | |
e98b7f1b UH |
837 | sr_dbg("Unknown capture state: %d.", capturestate); |
838 | break; | |
3b533202 BV |
839 | } |
840 | ||
841 | return TRUE; | |
842 | } | |
843 | ||
3ffb6964 | 844 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, |
e98b7f1b | 845 | void *cb_data) |
3b533202 BV |
846 | { |
847 | const struct libusb_pollfd **lupfd; | |
848 | struct sr_datafeed_packet packet; | |
849 | struct sr_datafeed_header header; | |
850 | struct sr_datafeed_meta_analog meta; | |
269971dd | 851 | struct dev_context *devc; |
d4abb463 | 852 | struct drv_context *drvc = hdi->priv; |
3b533202 BV |
853 | int i; |
854 | ||
3b533202 BV |
855 | if (sdi->status != SR_ST_ACTIVE) |
856 | return SR_ERR; | |
857 | ||
269971dd BV |
858 | devc = sdi->priv; |
859 | devc->cb_data = cb_data; | |
3b533202 | 860 | |
014359e3 | 861 | if (configure_probes(sdi) != SR_OK) { |
e98b7f1b | 862 | sr_err("Failed to configure probes."); |
014359e3 BV |
863 | return SR_ERR; |
864 | } | |
865 | ||
269971dd | 866 | if (dso_init(devc) != SR_OK) |
3b533202 BV |
867 | return SR_ERR; |
868 | ||
269971dd | 869 | if (dso_capture_start(devc) != SR_OK) |
3b533202 BV |
870 | return SR_ERR; |
871 | ||
269971dd | 872 | devc->dev_state = CAPTURE; |
d4abb463 | 873 | lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx); |
3b533202 | 874 | for (i = 0; lupfd[i]; i++) |
e98b7f1b UH |
875 | sr_source_add(lupfd[i]->fd, lupfd[i]->events, TICK, |
876 | handle_event, (void *)sdi); | |
3b533202 BV |
877 | free(lupfd); |
878 | ||
879 | /* Send header packet to the session bus. */ | |
880 | packet.type = SR_DF_HEADER; | |
881 | packet.payload = (unsigned char *)&header; | |
882 | header.feed_version = 1; | |
883 | gettimeofday(&header.starttime, NULL); | |
884 | sr_session_send(cb_data, &packet); | |
885 | ||
886 | /* Send metadata about the SR_DF_ANALOG packets to come. */ | |
887 | packet.type = SR_DF_META_ANALOG; | |
888 | packet.payload = &meta; | |
88a13f30 | 889 | meta.num_probes = NUM_PROBES; |
3b533202 BV |
890 | sr_session_send(cb_data, &packet); |
891 | ||
892 | return SR_OK; | |
893 | } | |
894 | ||
69b07d14 | 895 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
3b533202 | 896 | { |
269971dd BV |
897 | struct dev_context *devc; |
898 | ||
899 | (void)cb_data; | |
3b533202 | 900 | |
3b533202 BV |
901 | if (sdi->status != SR_ST_ACTIVE) |
902 | return SR_ERR; | |
903 | ||
a3508e33 BV |
904 | devc = sdi->priv; |
905 | devc->dev_state = STOPPING; | |
3b533202 BV |
906 | |
907 | return SR_OK; | |
908 | } | |
909 | ||
62bb8840 | 910 | SR_PRIV struct sr_dev_driver hantek_dso_driver_info = { |
3b533202 BV |
911 | .name = "hantek-dso", |
912 | .longname = "Hantek DSO", | |
913 | .api_version = 1, | |
914 | .init = hw_init, | |
915 | .cleanup = hw_cleanup, | |
61136ea6 | 916 | .scan = hw_scan, |
811deee4 BV |
917 | .dev_list = hw_dev_list, |
918 | .dev_clear = clear_instances, | |
3b533202 BV |
919 | .dev_open = hw_dev_open, |
920 | .dev_close = hw_dev_close, | |
0b79bcbb | 921 | .info_get = hw_info_get, |
3b533202 | 922 | .dev_config_set = hw_dev_config_set, |
62bb8840 UH |
923 | .dev_acquisition_start = hw_dev_acquisition_start, |
924 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
269971dd | 925 | .priv = NULL, |
3b533202 | 926 | }; |