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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[] = { |
1953564a BV |
41 | SR_CONF_OSCILLOSCOPE, |
42 | SR_CONF_LIMIT_SAMPLES, | |
43 | SR_CONF_CONTINUOUS, | |
44 | SR_CONF_TIMEBASE, | |
45 | SR_CONF_BUFFERSIZE, | |
46 | SR_CONF_TRIGGER_SOURCE, | |
47 | SR_CONF_TRIGGER_SLOPE, | |
48 | SR_CONF_HORIZ_TRIGGERPOS, | |
49 | SR_CONF_FILTER, | |
50 | SR_CONF_VDIV, | |
51 | SR_CONF_COUPLING, | |
3b533202 BV |
52 | 0, |
53 | }; | |
54 | ||
55 | static const char *probe_names[] = { | |
78693401 | 56 | "CH1", "CH2", |
3b533202 BV |
57 | NULL, |
58 | }; | |
59 | ||
62bb8840 | 60 | static const struct dso_profile dev_profiles[] = { |
88a13f30 | 61 | { 0x04b4, 0x2090, 0x04b5, 0x2090, |
3b533202 | 62 | "Hantek", "DSO-2090", |
88a13f30 BV |
63 | FIRMWARE_DIR "/hantek-dso-2xxx.fw" }, |
64 | { 0x04b4, 0x2150, 0x04b5, 0x2150, | |
65 | "Hantek", "DSO-2150", | |
66 | FIRMWARE_DIR "/hantek-dso-2xxx.fw" }, | |
67 | { 0x04b4, 0x2250, 0x04b5, 0x2250, | |
68 | "Hantek", "DSO-2250", | |
69 | FIRMWARE_DIR "/hantek-dso-2xxx.fw" }, | |
70 | { 0x04b4, 0x5200, 0x04b5, 0x5200, | |
71 | "Hantek", "DSO-5200", | |
72 | FIRMWARE_DIR "/hantek-dso-5xxx.fw" }, | |
73 | { 0x04b4, 0x520a, 0x04b5, 0x520a, | |
74 | "Hantek", "DSO-5200A", | |
75 | FIRMWARE_DIR "/hantek-dso-5xxx.fw" }, | |
76 | { 0, 0, 0, 0, 0, 0, 0 }, | |
3b533202 BV |
77 | }; |
78 | ||
62bb8840 | 79 | static const uint64_t buffersizes[] = { |
a370ef19 BV |
80 | 10240, |
81 | 32768, | |
82 | /* TODO: 65535 */ | |
62bb8840 | 83 | 0, |
a370ef19 BV |
84 | }; |
85 | ||
62bb8840 | 86 | static const struct sr_rational timebases[] = { |
a370ef19 BV |
87 | /* microseconds */ |
88 | { 10, 1000000 }, | |
89 | { 20, 1000000 }, | |
90 | { 40, 1000000 }, | |
91 | { 100, 1000000 }, | |
92 | { 200, 1000000 }, | |
93 | { 400, 1000000 }, | |
94 | /* milliseconds */ | |
95 | { 1, 1000 }, | |
96 | { 2, 1000 }, | |
97 | { 4, 1000 }, | |
98 | { 10, 1000 }, | |
99 | { 20, 1000 }, | |
100 | { 40, 1000 }, | |
101 | { 100, 1000 }, | |
102 | { 200, 1000 }, | |
103 | { 400, 1000 }, | |
62bb8840 | 104 | { 0, 0}, |
a370ef19 BV |
105 | }; |
106 | ||
62bb8840 | 107 | static const struct sr_rational vdivs[] = { |
313deed2 BV |
108 | /* millivolts */ |
109 | { 10, 1000 }, | |
110 | { 20, 1000 }, | |
111 | { 50, 1000 }, | |
112 | { 100, 1000 }, | |
113 | { 200, 1000 }, | |
114 | { 500, 1000 }, | |
115 | /* volts */ | |
116 | { 1, 1 }, | |
117 | { 2, 1 }, | |
118 | { 5, 1 }, | |
62bb8840 | 119 | { 0, 0 }, |
313deed2 BV |
120 | }; |
121 | ||
62bb8840 | 122 | static const char *trigger_sources[] = { |
a370ef19 BV |
123 | "CH1", |
124 | "CH2", | |
125 | "EXT", | |
88a13f30 | 126 | /* TODO: forced */ |
62bb8840 | 127 | NULL, |
a370ef19 | 128 | }; |
3b533202 | 129 | |
62bb8840 | 130 | static const char *filter_targets[] = { |
ebb781a6 BV |
131 | "CH1", |
132 | "CH2", | |
133 | /* TODO: "TRIGGER", */ | |
62bb8840 | 134 | NULL, |
ebb781a6 BV |
135 | }; |
136 | ||
62bb8840 | 137 | static const char *coupling[] = { |
b58fbd99 BV |
138 | "AC", |
139 | "DC", | |
140 | "GND", | |
62bb8840 | 141 | NULL, |
b58fbd99 BV |
142 | }; |
143 | ||
982947f7 | 144 | SR_PRIV struct sr_dev_driver hantek_dso_driver_info; |
a873c594 | 145 | static struct sr_dev_driver *di = &hantek_dso_driver_info; |
e98b7f1b | 146 | |
69b07d14 | 147 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data); |
3b533202 | 148 | |
62bb8840 | 149 | static struct sr_dev_inst *dso_dev_new(int index, const struct dso_profile *prof) |
3b533202 BV |
150 | { |
151 | struct sr_dev_inst *sdi; | |
87ca93c5 | 152 | struct sr_probe *probe; |
269971dd BV |
153 | struct drv_context *drvc; |
154 | struct dev_context *devc; | |
87ca93c5 | 155 | int i; |
3b533202 BV |
156 | |
157 | sdi = sr_dev_inst_new(index, SR_ST_INITIALIZING, | |
88a13f30 | 158 | prof->vendor, prof->model, NULL); |
3b533202 BV |
159 | if (!sdi) |
160 | return NULL; | |
a873c594 | 161 | sdi->driver = di; |
3b533202 | 162 | |
e98b7f1b UH |
163 | /* |
164 | * Add only the real probes -- EXT isn't a source of data, only | |
87ca93c5 BV |
165 | * a trigger source internal to the device. |
166 | */ | |
167 | for (i = 0; probe_names[i]; i++) { | |
168 | if (!(probe = sr_probe_new(i, SR_PROBE_ANALOG, TRUE, | |
169 | probe_names[i]))) | |
170 | return NULL; | |
171 | sdi->probes = g_slist_append(sdi->probes, probe); | |
172 | } | |
173 | ||
269971dd | 174 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { |
e98b7f1b | 175 | sr_err("Device context malloc failed."); |
3b533202 BV |
176 | return NULL; |
177 | } | |
e98b7f1b | 178 | |
269971dd BV |
179 | devc->profile = prof; |
180 | devc->dev_state = IDLE; | |
181 | devc->timebase = DEFAULT_TIMEBASE; | |
182 | devc->ch1_enabled = TRUE; | |
183 | devc->ch2_enabled = TRUE; | |
184 | devc->voltage_ch1 = DEFAULT_VOLTAGE; | |
185 | devc->voltage_ch2 = DEFAULT_VOLTAGE; | |
186 | devc->coupling_ch1 = DEFAULT_COUPLING; | |
187 | devc->coupling_ch2 = DEFAULT_COUPLING; | |
188 | devc->voffset_ch1 = DEFAULT_VERT_OFFSET; | |
189 | devc->voffset_ch2 = DEFAULT_VERT_OFFSET; | |
190 | devc->voffset_trigger = DEFAULT_VERT_TRIGGERPOS; | |
191 | devc->framesize = DEFAULT_FRAMESIZE; | |
192 | devc->triggerslope = SLOPE_POSITIVE; | |
193 | devc->triggersource = g_strdup(DEFAULT_TRIGGER_SOURCE); | |
194 | devc->triggerposition = DEFAULT_HORIZ_TRIGGERPOS; | |
195 | sdi->priv = devc; | |
a873c594 | 196 | drvc = di->priv; |
269971dd | 197 | drvc->instances = g_slist_append(drvc->instances, sdi); |
3b533202 BV |
198 | |
199 | return sdi; | |
200 | } | |
201 | ||
014359e3 | 202 | static int configure_probes(const struct sr_dev_inst *sdi) |
3b533202 | 203 | { |
014359e3 | 204 | struct dev_context *devc; |
69e19dd7 | 205 | struct sr_probe *probe; |
62bb8840 | 206 | const GSList *l; |
69e19dd7 | 207 | int p; |
3b533202 | 208 | |
014359e3 BV |
209 | devc = sdi->priv; |
210 | ||
69e19dd7 | 211 | g_slist_free(devc->enabled_probes); |
269971dd | 212 | devc->ch1_enabled = devc->ch2_enabled = FALSE; |
69e19dd7 BV |
213 | for (l = sdi->probes, p = 0; l; l = l->next, p++) { |
214 | probe = l->data; | |
215 | if (p == 0) | |
269971dd | 216 | devc->ch1_enabled = probe->enabled; |
69e19dd7 | 217 | else |
269971dd | 218 | devc->ch2_enabled = probe->enabled; |
69e19dd7 BV |
219 | if (probe->enabled) |
220 | devc->enabled_probes = g_slist_append(devc->enabled_probes, probe); | |
3b533202 BV |
221 | } |
222 | ||
223 | return SR_OK; | |
224 | } | |
225 | ||
39cfdd75 | 226 | /* Properly close and free all devices. */ |
811deee4 | 227 | static int clear_instances(void) |
39cfdd75 BV |
228 | { |
229 | struct sr_dev_inst *sdi; | |
269971dd BV |
230 | struct drv_context *drvc; |
231 | struct dev_context *devc; | |
39cfdd75 BV |
232 | GSList *l; |
233 | ||
a873c594 | 234 | drvc = di->priv; |
269971dd | 235 | for (l = drvc->instances; l; l = l->next) { |
39cfdd75 BV |
236 | if (!(sdi = l->data)) { |
237 | /* Log error, but continue cleaning up the rest. */ | |
e98b7f1b | 238 | sr_err("%s: sdi was NULL, continuing", __func__); |
39cfdd75 BV |
239 | continue; |
240 | } | |
269971dd | 241 | if (!(devc = sdi->priv)) { |
39cfdd75 | 242 | /* Log error, but continue cleaning up the rest. */ |
e98b7f1b | 243 | sr_err("%s: sdi->priv was NULL, continuing", __func__); |
39cfdd75 BV |
244 | continue; |
245 | } | |
246 | dso_close(sdi); | |
269971dd BV |
247 | sr_usb_dev_inst_free(devc->usb); |
248 | g_free(devc->triggersource); | |
69e19dd7 | 249 | g_slist_free(devc->enabled_probes); |
39cfdd75 BV |
250 | |
251 | sr_dev_inst_free(sdi); | |
252 | } | |
253 | ||
269971dd BV |
254 | g_slist_free(drvc->instances); |
255 | drvc->instances = NULL; | |
39cfdd75 | 256 | |
811deee4 | 257 | return SR_OK; |
39cfdd75 BV |
258 | } |
259 | ||
34f06b90 | 260 | static int hw_init(struct sr_context *sr_ctx) |
61136ea6 | 261 | { |
063e7aef | 262 | return std_hw_init(sr_ctx, di, DRIVER_LOG_DOMAIN); |
61136ea6 BV |
263 | } |
264 | ||
39cfdd75 | 265 | static GSList *hw_scan(GSList *options) |
3b533202 BV |
266 | { |
267 | struct sr_dev_inst *sdi; | |
62bb8840 | 268 | const struct dso_profile *prof; |
269971dd BV |
269 | struct drv_context *drvc; |
270 | struct dev_context *devc; | |
39cfdd75 BV |
271 | GSList *devices; |
272 | struct libusb_device_descriptor des; | |
3b533202 | 273 | libusb_device **devlist; |
61136ea6 | 274 | int devcnt, ret, i, j; |
3b533202 | 275 | |
39cfdd75 | 276 | (void)options; |
e98b7f1b | 277 | |
a873c594 | 278 | drvc = di->priv; |
269971dd | 279 | drvc->instances = NULL; |
39cfdd75 | 280 | |
4b97c74e UH |
281 | devcnt = 0; |
282 | devices = 0; | |
283 | ||
39cfdd75 BV |
284 | clear_instances(); |
285 | ||
286 | /* Find all Hantek DSO devices and upload firmware to all of them. */ | |
d4abb463 | 287 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); |
3b533202 | 288 | for (i = 0; devlist[i]; i++) { |
61136ea6 | 289 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { |
d4928d71 PS |
290 | sr_err("Failed to get device descriptor: %s.", |
291 | libusb_error_name(ret)); | |
3b533202 BV |
292 | continue; |
293 | } | |
294 | ||
295 | prof = NULL; | |
296 | for (j = 0; dev_profiles[j].orig_vid; j++) { | |
297 | if (des.idVendor == dev_profiles[j].orig_vid | |
298 | && des.idProduct == dev_profiles[j].orig_pid) { | |
299 | /* Device matches the pre-firmware profile. */ | |
300 | prof = &dev_profiles[j]; | |
e98b7f1b | 301 | sr_dbg("Found a %s %s.", prof->vendor, prof->model); |
3b533202 | 302 | sdi = dso_dev_new(devcnt, prof); |
39cfdd75 | 303 | devices = g_slist_append(devices, sdi); |
269971dd | 304 | devc = sdi->priv; |
3b533202 BV |
305 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, |
306 | prof->firmware) == SR_OK) | |
307 | /* Remember when the firmware on this device was updated */ | |
269971dd | 308 | devc->fw_updated = g_get_monotonic_time(); |
3b533202 | 309 | else |
e98b7f1b UH |
310 | sr_err("Firmware upload failed for " |
311 | "device %d.", devcnt); | |
3b533202 | 312 | /* Dummy USB address of 0xff will get overwritten later. */ |
269971dd | 313 | devc->usb = sr_usb_dev_inst_new( |
3b533202 BV |
314 | libusb_get_bus_number(devlist[i]), 0xff, NULL); |
315 | devcnt++; | |
316 | break; | |
317 | } else if (des.idVendor == dev_profiles[j].fw_vid | |
318 | && des.idProduct == dev_profiles[j].fw_pid) { | |
319 | /* Device matches the post-firmware profile. */ | |
320 | prof = &dev_profiles[j]; | |
e98b7f1b | 321 | sr_dbg("Found a %s %s.", prof->vendor, prof->model); |
3b533202 BV |
322 | sdi = dso_dev_new(devcnt, prof); |
323 | sdi->status = SR_ST_INACTIVE; | |
39cfdd75 | 324 | devices = g_slist_append(devices, sdi); |
269971dd BV |
325 | devc = sdi->priv; |
326 | devc->usb = sr_usb_dev_inst_new( | |
3b533202 BV |
327 | libusb_get_bus_number(devlist[i]), |
328 | libusb_get_device_address(devlist[i]), NULL); | |
329 | devcnt++; | |
330 | break; | |
331 | } | |
332 | } | |
333 | if (!prof) | |
334 | /* not a supported VID/PID */ | |
335 | continue; | |
336 | } | |
337 | libusb_free_device_list(devlist, 1); | |
338 | ||
39cfdd75 | 339 | return devices; |
3b533202 BV |
340 | } |
341 | ||
811deee4 BV |
342 | static GSList *hw_dev_list(void) |
343 | { | |
344 | struct drv_context *drvc; | |
345 | ||
a873c594 | 346 | drvc = di->priv; |
811deee4 BV |
347 | |
348 | return drvc->instances; | |
349 | } | |
350 | ||
25a0f108 | 351 | static int hw_dev_open(struct sr_dev_inst *sdi) |
3b533202 | 352 | { |
269971dd | 353 | struct dev_context *devc; |
fc8fe3e3 BV |
354 | int64_t timediff_us, timediff_ms; |
355 | int err; | |
3b533202 | 356 | |
269971dd | 357 | devc = sdi->priv; |
3b533202 BV |
358 | |
359 | /* | |
e98b7f1b UH |
360 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS |
361 | * for the FX2 to renumerate. | |
3b533202 | 362 | */ |
fc8fe3e3 | 363 | err = SR_ERR; |
269971dd | 364 | if (devc->fw_updated > 0) { |
e98b7f1b UH |
365 | sr_info("Waiting for device to reset."); |
366 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ | |
3b533202 | 367 | g_usleep(300 * 1000); |
fc8fe3e3 BV |
368 | timediff_ms = 0; |
369 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
25a0f108 | 370 | if ((err = dso_open(sdi)) == SR_OK) |
3b533202 BV |
371 | break; |
372 | g_usleep(100 * 1000); | |
269971dd | 373 | timediff_us = g_get_monotonic_time() - devc->fw_updated; |
fc8fe3e3 | 374 | timediff_ms = timediff_us / 1000; |
e98b7f1b | 375 | sr_spew("Waited %" PRIi64 " ms.", timediff_ms); |
3b533202 | 376 | } |
e98b7f1b | 377 | sr_info("Device came back after %d ms.", timediff_ms); |
3b533202 | 378 | } else { |
25a0f108 | 379 | err = dso_open(sdi); |
3b533202 BV |
380 | } |
381 | ||
382 | if (err != SR_OK) { | |
e98b7f1b | 383 | sr_err("Unable to open device."); |
3b533202 BV |
384 | return SR_ERR; |
385 | } | |
386 | ||
269971dd | 387 | err = libusb_claim_interface(devc->usb->devhdl, USB_INTERFACE); |
3b533202 | 388 | if (err != 0) { |
d4928d71 PS |
389 | sr_err("Unable to claim interface: %s.", |
390 | libusb_error_name(err)); | |
3b533202 BV |
391 | return SR_ERR; |
392 | } | |
393 | ||
394 | return SR_OK; | |
395 | } | |
396 | ||
25a0f108 | 397 | static int hw_dev_close(struct sr_dev_inst *sdi) |
3b533202 | 398 | { |
3b533202 BV |
399 | dso_close(sdi); |
400 | ||
401 | return SR_OK; | |
402 | } | |
403 | ||
404 | static int hw_cleanup(void) | |
405 | { | |
269971dd BV |
406 | struct drv_context *drvc; |
407 | ||
a873c594 | 408 | if (!(drvc = di->priv)) |
269971dd | 409 | return SR_OK; |
3b533202 | 410 | |
39cfdd75 | 411 | clear_instances(); |
3b533202 | 412 | |
3b533202 BV |
413 | return SR_OK; |
414 | } | |
415 | ||
035a1078 | 416 | static int config_set(int id, const void *value, const struct sr_dev_inst *sdi) |
3b533202 | 417 | { |
269971dd | 418 | struct dev_context *devc; |
a370ef19 BV |
419 | struct sr_rational tmp_rat; |
420 | float tmp_float; | |
421 | uint64_t tmp_u64; | |
422 | int ret, i; | |
4a090d72 | 423 | char **targets; |
3b533202 | 424 | |
3b533202 BV |
425 | if (sdi->status != SR_ST_ACTIVE) |
426 | return SR_ERR; | |
427 | ||
a370ef19 | 428 | ret = SR_OK; |
269971dd | 429 | devc = sdi->priv; |
035a1078 | 430 | switch (id) { |
1953564a | 431 | case SR_CONF_LIMIT_FRAMES: |
269971dd | 432 | devc->limit_frames = *(const uint64_t *)value; |
ae88b97b | 433 | break; |
1953564a | 434 | case SR_CONF_TRIGGER_SLOPE: |
62bb8840 | 435 | tmp_u64 = *(const int *)value; |
a370ef19 BV |
436 | if (tmp_u64 != SLOPE_NEGATIVE && tmp_u64 != SLOPE_POSITIVE) |
437 | ret = SR_ERR_ARG; | |
269971dd | 438 | devc->triggerslope = tmp_u64; |
a370ef19 | 439 | break; |
1953564a | 440 | case SR_CONF_HORIZ_TRIGGERPOS: |
62bb8840 | 441 | tmp_float = *(const float *)value; |
a370ef19 | 442 | if (tmp_float < 0.0 || tmp_float > 1.0) { |
e98b7f1b | 443 | sr_err("Trigger position should be between 0.0 and 1.0."); |
3b533202 | 444 | ret = SR_ERR_ARG; |
a370ef19 | 445 | } else |
269971dd | 446 | devc->triggerposition = tmp_float; |
a370ef19 | 447 | break; |
1953564a | 448 | case SR_CONF_BUFFERSIZE: |
62bb8840 | 449 | tmp_u64 = *(const int *)value; |
a370ef19 BV |
450 | for (i = 0; buffersizes[i]; i++) { |
451 | if (buffersizes[i] == tmp_u64) { | |
269971dd | 452 | devc->framesize = tmp_u64; |
a370ef19 BV |
453 | break; |
454 | } | |
455 | } | |
456 | if (buffersizes[i] == 0) | |
457 | ret = SR_ERR_ARG; | |
458 | break; | |
1953564a | 459 | case SR_CONF_TIMEBASE: |
62bb8840 | 460 | tmp_rat = *(const struct sr_rational *)value; |
a370ef19 BV |
461 | for (i = 0; timebases[i].p && timebases[i].q; i++) { |
462 | if (timebases[i].p == tmp_rat.p | |
463 | && timebases[i].q == tmp_rat.q) { | |
269971dd | 464 | devc->timebase = i; |
a370ef19 BV |
465 | break; |
466 | } | |
467 | } | |
468 | if (timebases[i].p == 0 && timebases[i].q == 0) | |
469 | ret = SR_ERR_ARG; | |
470 | break; | |
1953564a | 471 | case SR_CONF_TRIGGER_SOURCE: |
a370ef19 | 472 | for (i = 0; trigger_sources[i]; i++) { |
4a090d72 | 473 | if (!strcmp(value, trigger_sources[i])) { |
269971dd | 474 | devc->triggersource = g_strdup(value); |
a370ef19 BV |
475 | break; |
476 | } | |
477 | } | |
478 | if (trigger_sources[i] == 0) | |
479 | ret = SR_ERR_ARG; | |
480 | break; | |
1953564a | 481 | case SR_CONF_FILTER: |
269971dd | 482 | devc->filter_ch1 = devc->filter_ch2 = devc->filter_trigger = 0; |
ebb781a6 BV |
483 | targets = g_strsplit(value, ",", 0); |
484 | for (i = 0; targets[i]; i++) { | |
485 | if (targets[i] == '\0') | |
486 | /* Empty filter string can be used to clear them all. */ | |
487 | ; | |
488 | else if (!strcmp(targets[i], "CH1")) | |
269971dd | 489 | devc->filter_ch1 = TRUE; |
ebb781a6 | 490 | else if (!strcmp(targets[i], "CH2")) |
269971dd | 491 | devc->filter_ch2 = TRUE; |
ebb781a6 | 492 | else if (!strcmp(targets[i], "TRIGGER")) |
269971dd | 493 | devc->filter_trigger = TRUE; |
ebb781a6 | 494 | else { |
e98b7f1b | 495 | sr_err("Invalid filter target %s.", targets[i]); |
ebb781a6 BV |
496 | ret = SR_ERR_ARG; |
497 | } | |
498 | } | |
499 | g_strfreev(targets); | |
500 | break; | |
1953564a | 501 | case SR_CONF_VDIV: |
e98b7f1b | 502 | /* TODO: Not supporting vdiv per channel yet. */ |
62bb8840 | 503 | tmp_rat = *(const struct sr_rational *)value; |
313deed2 BV |
504 | for (i = 0; vdivs[i].p && vdivs[i].q; i++) { |
505 | if (vdivs[i].p == tmp_rat.p | |
506 | && vdivs[i].q == tmp_rat.q) { | |
269971dd BV |
507 | devc->voltage_ch1 = i; |
508 | devc->voltage_ch2 = i; | |
313deed2 BV |
509 | break; |
510 | } | |
511 | } | |
512 | if (vdivs[i].p == 0 && vdivs[i].q == 0) | |
513 | ret = SR_ERR_ARG; | |
514 | break; | |
1953564a | 515 | case SR_CONF_COUPLING: |
e98b7f1b | 516 | /* TODO: Not supporting coupling per channel yet. */ |
b58fbd99 | 517 | for (i = 0; coupling[i]; i++) { |
4a090d72 | 518 | if (!strcmp(value, coupling[i])) { |
269971dd BV |
519 | devc->coupling_ch1 = i; |
520 | devc->coupling_ch2 = i; | |
b58fbd99 BV |
521 | break; |
522 | } | |
523 | } | |
524 | if (coupling[i] == 0) | |
525 | ret = SR_ERR_ARG; | |
526 | break; | |
3b533202 BV |
527 | default: |
528 | ret = SR_ERR_ARG; | |
e98b7f1b | 529 | break; |
3b533202 BV |
530 | } |
531 | ||
532 | return ret; | |
533 | } | |
534 | ||
a1c743fc BV |
535 | static int config_list(int key, const void **data, const struct sr_dev_inst *sdi) |
536 | { | |
537 | ||
538 | (void)sdi; | |
539 | ||
540 | switch (key) { | |
9a6517d1 BV |
541 | case SR_CONF_DEVICE_OPTIONS: |
542 | *data = hwcaps; | |
543 | break; | |
6d1ceffa BV |
544 | case SR_CONF_BUFFERSIZE: |
545 | *data = buffersizes; | |
546 | break; | |
2a7b113d BV |
547 | case SR_CONF_COUPLING: |
548 | *data = coupling; | |
549 | break; | |
e4f2b2ad BV |
550 | case SR_CONF_VDIV: |
551 | *data = vdivs; | |
552 | break; | |
6e1fbcc4 BV |
553 | case SR_CONF_FILTER: |
554 | *data = filter_targets; | |
555 | break; | |
41f5bd09 BV |
556 | case SR_CONF_TIMEBASE: |
557 | *data = timebases; | |
558 | break; | |
328bafab BV |
559 | case SR_CONF_TRIGGER_SOURCE: |
560 | *data = trigger_sources; | |
561 | break; | |
a1c743fc BV |
562 | default: |
563 | return SR_ERR_ARG; | |
564 | } | |
565 | ||
566 | return SR_OK; | |
567 | } | |
568 | ||
69e19dd7 | 569 | static void send_chunk(struct sr_dev_inst *sdi, unsigned char *buf, |
e749a8cb | 570 | int num_samples) |
3b533202 BV |
571 | { |
572 | struct sr_datafeed_packet packet; | |
573 | struct sr_datafeed_analog analog; | |
69e19dd7 | 574 | struct dev_context *devc; |
c5841b28 | 575 | float ch1, ch2, range; |
6e71ef3b | 576 | int num_probes, data_offset, i; |
3b533202 | 577 | |
69e19dd7 | 578 | devc = sdi->priv; |
269971dd | 579 | num_probes = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; |
3b533202 BV |
580 | packet.type = SR_DF_ANALOG; |
581 | packet.payload = &analog; | |
6e71ef3b | 582 | /* TODO: support for 5xxx series 9-bit samples */ |
69e19dd7 | 583 | analog.probes = devc->enabled_probes; |
e749a8cb | 584 | analog.num_samples = num_samples; |
9956f285 UH |
585 | analog.mq = SR_MQ_VOLTAGE; |
586 | analog.unit = SR_UNIT_VOLT; | |
886a52b6 | 587 | /* TODO: Check malloc return value. */ |
6e71ef3b BV |
588 | analog.data = g_try_malloc(analog.num_samples * sizeof(float) * num_probes); |
589 | data_offset = 0; | |
3b533202 | 590 | for (i = 0; i < analog.num_samples; i++) { |
e98b7f1b UH |
591 | /* |
592 | * The device always sends data for both channels. If a channel | |
6e71ef3b | 593 | * is disabled, it contains a copy of the enabled channel's |
e98b7f1b UH |
594 | * data. However, we only send the requested channels to |
595 | * the bus. | |
c5841b28 | 596 | * |
e98b7f1b UH |
597 | * Voltage values are encoded as a value 0-255 (0-512 on the |
598 | * DSO-5200*), where the value is a point in the range | |
599 | * represented by the vdiv setting. There are 8 vertical divs, | |
600 | * so e.g. 500mV/div represents 4V peak-to-peak where 0 = -2V | |
601 | * and 255 = +2V. | |
6e71ef3b | 602 | */ |
e98b7f1b | 603 | /* TODO: Support for DSO-5xxx series 9-bit samples. */ |
269971dd BV |
604 | if (devc->ch1_enabled) { |
605 | range = ((float)vdivs[devc->voltage_ch1].p / vdivs[devc->voltage_ch1].q) * 8; | |
e749a8cb | 606 | ch1 = range / 255 * *(buf + i * 2 + 1); |
c5841b28 BV |
607 | /* Value is centered around 0V. */ |
608 | ch1 -= range / 2; | |
6e71ef3b BV |
609 | analog.data[data_offset++] = ch1; |
610 | } | |
269971dd BV |
611 | if (devc->ch2_enabled) { |
612 | range = ((float)vdivs[devc->voltage_ch2].p / vdivs[devc->voltage_ch2].q) * 8; | |
e749a8cb | 613 | ch2 = range / 255 * *(buf + i * 2); |
c5841b28 | 614 | ch2 -= range / 2; |
6e71ef3b BV |
615 | analog.data[data_offset++] = ch2; |
616 | } | |
3b533202 | 617 | } |
269971dd | 618 | sr_session_send(devc->cb_data, &packet); |
e749a8cb BV |
619 | } |
620 | ||
e98b7f1b UH |
621 | /* |
622 | * Called by libusb (as triggered by handle_event()) when a transfer comes in. | |
e749a8cb | 623 | * Only channel data comes in asynchronously, and all transfers for this are |
e98b7f1b | 624 | * queued up beforehand, so this just needs to chuck the incoming data onto |
e749a8cb BV |
625 | * the libsigrok session bus. |
626 | */ | |
627 | static void receive_transfer(struct libusb_transfer *transfer) | |
628 | { | |
629 | struct sr_datafeed_packet packet; | |
69e19dd7 | 630 | struct sr_dev_inst *sdi; |
269971dd | 631 | struct dev_context *devc; |
e749a8cb BV |
632 | int num_samples, pre; |
633 | ||
69e19dd7 BV |
634 | sdi = transfer->user_data; |
635 | devc = sdi->priv; | |
e98b7f1b UH |
636 | sr_dbg("receive_transfer(): status %d received %d bytes.", |
637 | transfer->status, transfer->actual_length); | |
e749a8cb BV |
638 | |
639 | if (transfer->actual_length == 0) | |
640 | /* Nothing to send to the bus. */ | |
641 | return; | |
642 | ||
643 | num_samples = transfer->actual_length / 2; | |
644 | ||
e98b7f1b UH |
645 | sr_dbg("Got %d-%d/%d samples in frame.", devc->samp_received + 1, |
646 | devc->samp_received + num_samples, devc->framesize); | |
e749a8cb | 647 | |
e98b7f1b UH |
648 | /* |
649 | * The device always sends a full frame, but the beginning of the frame | |
e749a8cb BV |
650 | * doesn't represent the trigger point. The offset at which the trigger |
651 | * happened came in with the capture state, so we need to start sending | |
e98b7f1b UH |
652 | * from there up the session bus. The samples in the frame buffer |
653 | * before that trigger point came after the end of the device's frame | |
654 | * buffer was reached, and it wrapped around to overwrite up until the | |
655 | * trigger point. | |
e749a8cb | 656 | */ |
269971dd | 657 | if (devc->samp_received < devc->trigger_offset) { |
e749a8cb | 658 | /* Trigger point not yet reached. */ |
269971dd | 659 | if (devc->samp_received + num_samples < devc->trigger_offset) { |
e749a8cb | 660 | /* The entire chunk is before the trigger point. */ |
269971dd | 661 | memcpy(devc->framebuf + devc->samp_buffered * 2, |
e749a8cb | 662 | transfer->buffer, num_samples * 2); |
269971dd | 663 | devc->samp_buffered += num_samples; |
e749a8cb | 664 | } else { |
e98b7f1b UH |
665 | /* |
666 | * This chunk hits or overruns the trigger point. | |
e749a8cb | 667 | * Store the part before the trigger fired, and |
e98b7f1b UH |
668 | * send the rest up to the session bus. |
669 | */ | |
269971dd BV |
670 | pre = devc->trigger_offset - devc->samp_received; |
671 | memcpy(devc->framebuf + devc->samp_buffered * 2, | |
e749a8cb | 672 | transfer->buffer, pre * 2); |
269971dd | 673 | devc->samp_buffered += pre; |
e749a8cb BV |
674 | |
675 | /* The rest of this chunk starts with the trigger point. */ | |
e98b7f1b UH |
676 | sr_dbg("Reached trigger point, %d samples buffered.", |
677 | devc->samp_buffered); | |
e749a8cb BV |
678 | |
679 | /* Avoid the corner case where the chunk ended at | |
680 | * exactly the trigger point. */ | |
681 | if (num_samples > pre) | |
69e19dd7 | 682 | send_chunk(sdi, transfer->buffer + pre * 2, |
e749a8cb BV |
683 | num_samples - pre); |
684 | } | |
685 | } else { | |
686 | /* Already past the trigger point, just send it all out. */ | |
69e19dd7 | 687 | send_chunk(sdi, transfer->buffer, |
e749a8cb BV |
688 | num_samples); |
689 | } | |
690 | ||
269971dd | 691 | devc->samp_received += num_samples; |
e749a8cb BV |
692 | |
693 | /* Everything in this transfer was either copied to the buffer or | |
694 | * sent to the session bus. */ | |
3b533202 BV |
695 | g_free(transfer->buffer); |
696 | libusb_free_transfer(transfer); | |
3b533202 | 697 | |
269971dd | 698 | if (devc->samp_received >= devc->framesize) { |
e749a8cb BV |
699 | /* That was the last chunk in this frame. Send the buffered |
700 | * pre-trigger samples out now, in one big chunk. */ | |
e98b7f1b UH |
701 | sr_dbg("End of frame, sending %d pre-trigger buffered samples.", |
702 | devc->samp_buffered); | |
69e19dd7 | 703 | send_chunk(sdi, devc->framebuf, devc->samp_buffered); |
e749a8cb BV |
704 | |
705 | /* Mark the end of this frame. */ | |
ae88b97b | 706 | packet.type = SR_DF_FRAME_END; |
269971dd | 707 | sr_session_send(devc->cb_data, &packet); |
ae88b97b | 708 | |
269971dd | 709 | if (devc->limit_frames && ++devc->num_frames == devc->limit_frames) { |
ae88b97b | 710 | /* Terminate session */ |
a3508e33 | 711 | devc->dev_state = STOPPING; |
ae88b97b | 712 | } else { |
269971dd | 713 | devc->dev_state = NEW_CAPTURE; |
ae88b97b BV |
714 | } |
715 | } | |
3b533202 BV |
716 | } |
717 | ||
718 | static int handle_event(int fd, int revents, void *cb_data) | |
719 | { | |
a3508e33 | 720 | const struct sr_dev_inst *sdi; |
ae88b97b | 721 | struct sr_datafeed_packet packet; |
3b533202 | 722 | struct timeval tv; |
269971dd | 723 | struct dev_context *devc; |
a873c594 | 724 | struct drv_context *drvc = di->priv; |
a3508e33 BV |
725 | const struct libusb_pollfd **lupfd; |
726 | int num_probes, i; | |
6e6eeff4 BV |
727 | uint32_t trigger_offset; |
728 | uint8_t capturestate; | |
3b533202 | 729 | |
3b533202 BV |
730 | (void)fd; |
731 | (void)revents; | |
732 | ||
269971dd BV |
733 | sdi = cb_data; |
734 | devc = sdi->priv; | |
a3508e33 BV |
735 | if (devc->dev_state == STOPPING) { |
736 | /* We've been told to wind up the acquisition. */ | |
e98b7f1b UH |
737 | sr_dbg("Stopping acquisition."); |
738 | /* | |
739 | * TODO: Doesn't really cancel pending transfers so they might | |
740 | * come in after SR_DF_END is sent. | |
741 | */ | |
d4abb463 | 742 | lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx); |
a3508e33 BV |
743 | for (i = 0; lupfd[i]; i++) |
744 | sr_source_remove(lupfd[i]->fd); | |
745 | free(lupfd); | |
746 | ||
747 | packet.type = SR_DF_END; | |
748 | sr_session_send(sdi, &packet); | |
749 | ||
750 | devc->dev_state = IDLE; | |
751 | ||
752 | return TRUE; | |
753 | } | |
754 | ||
3b533202 BV |
755 | /* Always handle pending libusb events. */ |
756 | tv.tv_sec = tv.tv_usec = 0; | |
d4abb463 | 757 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); |
3b533202 | 758 | |
3b533202 | 759 | /* TODO: ugh */ |
269971dd BV |
760 | if (devc->dev_state == NEW_CAPTURE) { |
761 | if (dso_capture_start(devc) != SR_OK) | |
3b533202 | 762 | return TRUE; |
269971dd | 763 | if (dso_enable_trigger(devc) != SR_OK) |
3b533202 | 764 | return TRUE; |
269971dd | 765 | // if (dso_force_trigger(devc) != SR_OK) |
a370ef19 | 766 | // return TRUE; |
e98b7f1b | 767 | sr_dbg("Successfully requested next chunk."); |
269971dd | 768 | devc->dev_state = CAPTURE; |
3b533202 BV |
769 | return TRUE; |
770 | } | |
269971dd | 771 | if (devc->dev_state != CAPTURE) |
3b533202 BV |
772 | return TRUE; |
773 | ||
269971dd | 774 | if ((dso_get_capturestate(devc, &capturestate, &trigger_offset)) != SR_OK) |
3b533202 | 775 | return TRUE; |
3b533202 | 776 | |
e98b7f1b UH |
777 | sr_dbg("Capturestate %d.", capturestate); |
778 | sr_dbg("Trigger offset 0x%.6x.", trigger_offset); | |
3b533202 BV |
779 | switch (capturestate) { |
780 | case CAPTURE_EMPTY: | |
269971dd BV |
781 | if (++devc->capture_empty_count >= MAX_CAPTURE_EMPTY) { |
782 | devc->capture_empty_count = 0; | |
783 | if (dso_capture_start(devc) != SR_OK) | |
3b533202 | 784 | break; |
269971dd | 785 | if (dso_enable_trigger(devc) != SR_OK) |
3b533202 | 786 | break; |
269971dd | 787 | // if (dso_force_trigger(devc) != SR_OK) |
a370ef19 | 788 | // break; |
e98b7f1b | 789 | sr_dbg("Successfully requested next chunk."); |
3b533202 BV |
790 | } |
791 | break; | |
792 | case CAPTURE_FILLING: | |
e98b7f1b | 793 | /* No data yet. */ |
3b533202 BV |
794 | break; |
795 | case CAPTURE_READY_8BIT: | |
e749a8cb | 796 | /* Remember where in the captured frame the trigger is. */ |
269971dd | 797 | devc->trigger_offset = trigger_offset; |
e749a8cb | 798 | |
269971dd | 799 | num_probes = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; |
886a52b6 | 800 | /* TODO: Check malloc return value. */ |
269971dd BV |
801 | devc->framebuf = g_try_malloc(devc->framesize * num_probes * 2); |
802 | devc->samp_buffered = devc->samp_received = 0; | |
e749a8cb | 803 | |
3b533202 | 804 | /* Tell the scope to send us the first frame. */ |
69e19dd7 | 805 | if (dso_get_channeldata(sdi, receive_transfer) != SR_OK) |
3b533202 | 806 | break; |
ae88b97b | 807 | |
e98b7f1b UH |
808 | /* |
809 | * Don't hit the state machine again until we're done fetching | |
ae88b97b BV |
810 | * the data we just told the scope to send. |
811 | */ | |
269971dd | 812 | devc->dev_state = FETCH_DATA; |
ae88b97b BV |
813 | |
814 | /* Tell the frontend a new frame is on the way. */ | |
815 | packet.type = SR_DF_FRAME_BEGIN; | |
269971dd | 816 | sr_session_send(sdi, &packet); |
3b533202 BV |
817 | break; |
818 | case CAPTURE_READY_9BIT: | |
819 | /* TODO */ | |
e98b7f1b | 820 | sr_err("Not yet supported."); |
3b533202 BV |
821 | break; |
822 | case CAPTURE_TIMEOUT: | |
823 | /* Doesn't matter, we'll try again next time. */ | |
824 | break; | |
825 | default: | |
e98b7f1b UH |
826 | sr_dbg("Unknown capture state: %d.", capturestate); |
827 | break; | |
3b533202 BV |
828 | } |
829 | ||
830 | return TRUE; | |
831 | } | |
832 | ||
3ffb6964 | 833 | static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi, |
e98b7f1b | 834 | void *cb_data) |
3b533202 BV |
835 | { |
836 | const struct libusb_pollfd **lupfd; | |
837 | struct sr_datafeed_packet packet; | |
838 | struct sr_datafeed_header header; | |
269971dd | 839 | struct dev_context *devc; |
a873c594 | 840 | struct drv_context *drvc = di->priv; |
3b533202 BV |
841 | int i; |
842 | ||
3b533202 BV |
843 | if (sdi->status != SR_ST_ACTIVE) |
844 | return SR_ERR; | |
845 | ||
269971dd BV |
846 | devc = sdi->priv; |
847 | devc->cb_data = cb_data; | |
3b533202 | 848 | |
014359e3 | 849 | if (configure_probes(sdi) != SR_OK) { |
e98b7f1b | 850 | sr_err("Failed to configure probes."); |
014359e3 BV |
851 | return SR_ERR; |
852 | } | |
853 | ||
269971dd | 854 | if (dso_init(devc) != SR_OK) |
3b533202 BV |
855 | return SR_ERR; |
856 | ||
269971dd | 857 | if (dso_capture_start(devc) != SR_OK) |
3b533202 BV |
858 | return SR_ERR; |
859 | ||
269971dd | 860 | devc->dev_state = CAPTURE; |
d4abb463 | 861 | lupfd = libusb_get_pollfds(drvc->sr_ctx->libusb_ctx); |
3b533202 | 862 | for (i = 0; lupfd[i]; i++) |
e98b7f1b UH |
863 | sr_source_add(lupfd[i]->fd, lupfd[i]->events, TICK, |
864 | handle_event, (void *)sdi); | |
3b533202 BV |
865 | free(lupfd); |
866 | ||
867 | /* Send header packet to the session bus. */ | |
868 | packet.type = SR_DF_HEADER; | |
869 | packet.payload = (unsigned char *)&header; | |
870 | header.feed_version = 1; | |
871 | gettimeofday(&header.starttime, NULL); | |
872 | sr_session_send(cb_data, &packet); | |
873 | ||
3b533202 BV |
874 | return SR_OK; |
875 | } | |
876 | ||
69b07d14 | 877 | static int hw_dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
3b533202 | 878 | { |
269971dd BV |
879 | struct dev_context *devc; |
880 | ||
881 | (void)cb_data; | |
3b533202 | 882 | |
3b533202 BV |
883 | if (sdi->status != SR_ST_ACTIVE) |
884 | return SR_ERR; | |
885 | ||
a3508e33 BV |
886 | devc = sdi->priv; |
887 | devc->dev_state = STOPPING; | |
3b533202 BV |
888 | |
889 | return SR_OK; | |
890 | } | |
891 | ||
62bb8840 | 892 | SR_PRIV struct sr_dev_driver hantek_dso_driver_info = { |
3b533202 BV |
893 | .name = "hantek-dso", |
894 | .longname = "Hantek DSO", | |
895 | .api_version = 1, | |
896 | .init = hw_init, | |
897 | .cleanup = hw_cleanup, | |
61136ea6 | 898 | .scan = hw_scan, |
811deee4 BV |
899 | .dev_list = hw_dev_list, |
900 | .dev_clear = clear_instances, | |
035a1078 | 901 | .config_set = config_set, |
a1c743fc | 902 | .config_list = config_list, |
3b533202 BV |
903 | .dev_open = hw_dev_open, |
904 | .dev_close = hw_dev_close, | |
62bb8840 UH |
905 | .dev_acquisition_start = hw_dev_acquisition_start, |
906 | .dev_acquisition_stop = hw_dev_acquisition_stop, | |
269971dd | 907 | .priv = NULL, |
3b533202 | 908 | }; |