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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2012 Bert Vermeulen <bert@biot.com> | |
5 | * | |
6 | * This program is free software: you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation, either version 3 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <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> | |
30 | #include <glib.h> | |
31 | #include <libusb.h> | |
32 | #include "libsigrok.h" | |
33 | #include "libsigrok-internal.h" | |
34 | #include "dso.h" | |
35 | ||
36 | /* Max time in ms before we want to check on USB events */ | |
37 | /* TODO tune this properly */ | |
38 | #define TICK 1 | |
39 | ||
40 | #define NUM_TIMEBASE 10 | |
41 | #define NUM_VDIV 8 | |
42 | ||
43 | static const uint32_t scanopts[] = { | |
44 | SR_CONF_CONN, | |
45 | }; | |
46 | ||
47 | static const uint32_t drvopts[] = { | |
48 | SR_CONF_OSCILLOSCOPE, | |
49 | }; | |
50 | ||
51 | static const uint32_t devopts[] = { | |
52 | SR_CONF_CONTINUOUS | SR_CONF_SET, | |
53 | SR_CONF_LIMIT_FRAMES | SR_CONF_SET, | |
54 | SR_CONF_CONN | SR_CONF_GET, | |
55 | SR_CONF_TIMEBASE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
56 | SR_CONF_BUFFERSIZE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
57 | SR_CONF_TRIGGER_SOURCE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
58 | SR_CONF_TRIGGER_SLOPE | SR_CONF_GET | SR_CONF_SET, | |
59 | SR_CONF_HORIZ_TRIGGERPOS | SR_CONF_GET | SR_CONF_SET, | |
60 | SR_CONF_NUM_HDIV | SR_CONF_GET, | |
61 | SR_CONF_NUM_VDIV | SR_CONF_GET, | |
62 | }; | |
63 | ||
64 | static const uint32_t devopts_cg[] = { | |
65 | SR_CONF_FILTER | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
66 | SR_CONF_VDIV | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
67 | SR_CONF_COUPLING | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
68 | }; | |
69 | ||
70 | static const char *channel_names[] = { | |
71 | "CH1", "CH2", | |
72 | NULL, | |
73 | }; | |
74 | ||
75 | static const uint64_t buffersizes_32k[] = { | |
76 | 10240, 32768, | |
77 | }; | |
78 | static const uint64_t buffersizes_512k[] = { | |
79 | 10240, 524288, | |
80 | }; | |
81 | static const uint64_t buffersizes_14k[] = { | |
82 | 10240, 14336, | |
83 | }; | |
84 | ||
85 | static const struct dso_profile dev_profiles[] = { | |
86 | { 0x04b4, 0x2090, 0x04b5, 0x2090, | |
87 | "Hantek", "DSO-2090", | |
88 | buffersizes_32k, | |
89 | FIRMWARE_DIR "/hantek-dso-2090.fw" }, | |
90 | { 0x04b4, 0x2150, 0x04b5, 0x2150, | |
91 | "Hantek", "DSO-2150", | |
92 | buffersizes_32k, | |
93 | FIRMWARE_DIR "/hantek-dso-2150.fw" }, | |
94 | { 0x04b4, 0x2250, 0x04b5, 0x2250, | |
95 | "Hantek", "DSO-2250", | |
96 | buffersizes_512k, | |
97 | FIRMWARE_DIR "/hantek-dso-2250.fw" }, | |
98 | { 0x04b4, 0x5200, 0x04b5, 0x5200, | |
99 | "Hantek", "DSO-5200", | |
100 | buffersizes_14k, | |
101 | FIRMWARE_DIR "/hantek-dso-5200.fw" }, | |
102 | { 0x04b4, 0x520a, 0x04b5, 0x520a, | |
103 | "Hantek", "DSO-5200A", | |
104 | buffersizes_512k, | |
105 | FIRMWARE_DIR "/hantek-dso-5200A.fw" }, | |
106 | { 0, 0, 0, 0, 0, 0, 0, 0 }, | |
107 | }; | |
108 | ||
109 | static const uint64_t timebases[][2] = { | |
110 | /* microseconds */ | |
111 | { 10, 1000000 }, | |
112 | { 20, 1000000 }, | |
113 | { 40, 1000000 }, | |
114 | { 100, 1000000 }, | |
115 | { 200, 1000000 }, | |
116 | { 400, 1000000 }, | |
117 | /* milliseconds */ | |
118 | { 1, 1000 }, | |
119 | { 2, 1000 }, | |
120 | { 4, 1000 }, | |
121 | { 10, 1000 }, | |
122 | { 20, 1000 }, | |
123 | { 40, 1000 }, | |
124 | { 100, 1000 }, | |
125 | { 200, 1000 }, | |
126 | { 400, 1000 }, | |
127 | }; | |
128 | ||
129 | static const uint64_t vdivs[][2] = { | |
130 | /* millivolts */ | |
131 | { 10, 1000 }, | |
132 | { 20, 1000 }, | |
133 | { 50, 1000 }, | |
134 | { 100, 1000 }, | |
135 | { 200, 1000 }, | |
136 | { 500, 1000 }, | |
137 | /* volts */ | |
138 | { 1, 1 }, | |
139 | { 2, 1 }, | |
140 | { 5, 1 }, | |
141 | }; | |
142 | ||
143 | static const char *trigger_sources[] = { | |
144 | "CH1", | |
145 | "CH2", | |
146 | "EXT", | |
147 | /* TODO: forced */ | |
148 | }; | |
149 | ||
150 | static const char *trigger_slopes[] = { | |
151 | "r", | |
152 | "f", | |
153 | }; | |
154 | ||
155 | static const char *coupling[] = { | |
156 | "AC", | |
157 | "DC", | |
158 | "GND", | |
159 | }; | |
160 | ||
161 | SR_PRIV struct sr_dev_driver hantek_dso_driver_info; | |
162 | ||
163 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data); | |
164 | ||
165 | static struct sr_dev_inst *dso_dev_new(const struct dso_profile *prof) | |
166 | { | |
167 | struct sr_dev_inst *sdi; | |
168 | struct sr_channel *ch; | |
169 | struct sr_channel_group *cg; | |
170 | struct drv_context *drvc; | |
171 | struct dev_context *devc; | |
172 | unsigned int i; | |
173 | ||
174 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
175 | sdi->status = SR_ST_INITIALIZING; | |
176 | sdi->vendor = g_strdup(prof->vendor); | |
177 | sdi->model = g_strdup(prof->model); | |
178 | sdi->driver = &hantek_dso_driver_info; | |
179 | ||
180 | /* | |
181 | * Add only the real channels -- EXT isn't a source of data, only | |
182 | * a trigger source internal to the device. | |
183 | */ | |
184 | for (i = 0; channel_names[i]; i++) { | |
185 | ch = sr_channel_new(sdi, i, SR_CHANNEL_ANALOG, TRUE, channel_names[i]); | |
186 | cg = g_malloc0(sizeof(struct sr_channel_group)); | |
187 | cg->name = g_strdup(channel_names[i]); | |
188 | cg->channels = g_slist_append(cg->channels, ch); | |
189 | sdi->channel_groups = g_slist_append(sdi->channel_groups, cg); | |
190 | } | |
191 | ||
192 | devc = g_malloc0(sizeof(struct dev_context)); | |
193 | devc->profile = prof; | |
194 | devc->dev_state = IDLE; | |
195 | devc->timebase = DEFAULT_TIMEBASE; | |
196 | devc->ch1_enabled = TRUE; | |
197 | devc->ch2_enabled = TRUE; | |
198 | devc->voltage[0] = DEFAULT_VOLTAGE; | |
199 | devc->voltage[1] = DEFAULT_VOLTAGE; | |
200 | devc->coupling[0] = DEFAULT_COUPLING; | |
201 | devc->coupling[1] = DEFAULT_COUPLING; | |
202 | devc->voffset_ch1 = DEFAULT_VERT_OFFSET; | |
203 | devc->voffset_ch2 = DEFAULT_VERT_OFFSET; | |
204 | devc->voffset_trigger = DEFAULT_VERT_TRIGGERPOS; | |
205 | devc->framesize = DEFAULT_FRAMESIZE; | |
206 | devc->triggerslope = SLOPE_POSITIVE; | |
207 | devc->triggersource = g_strdup(DEFAULT_TRIGGER_SOURCE); | |
208 | devc->triggerposition = DEFAULT_HORIZ_TRIGGERPOS; | |
209 | sdi->priv = devc; | |
210 | drvc = hantek_dso_driver_info.priv; | |
211 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
212 | ||
213 | return sdi; | |
214 | } | |
215 | ||
216 | static int configure_channels(const struct sr_dev_inst *sdi) | |
217 | { | |
218 | struct dev_context *devc; | |
219 | struct sr_channel *ch; | |
220 | const GSList *l; | |
221 | int p; | |
222 | ||
223 | devc = sdi->priv; | |
224 | ||
225 | g_slist_free(devc->enabled_channels); | |
226 | devc->ch1_enabled = devc->ch2_enabled = FALSE; | |
227 | for (l = sdi->channels, p = 0; l; l = l->next, p++) { | |
228 | ch = l->data; | |
229 | if (p == 0) | |
230 | devc->ch1_enabled = ch->enabled; | |
231 | else | |
232 | devc->ch2_enabled = ch->enabled; | |
233 | if (ch->enabled) | |
234 | devc->enabled_channels = g_slist_append(devc->enabled_channels, ch); | |
235 | } | |
236 | ||
237 | return SR_OK; | |
238 | } | |
239 | ||
240 | static void clear_dev_context(void *priv) | |
241 | { | |
242 | struct dev_context *devc; | |
243 | ||
244 | devc = priv; | |
245 | g_free(devc->triggersource); | |
246 | g_slist_free(devc->enabled_channels); | |
247 | ||
248 | } | |
249 | ||
250 | static int dev_clear(const struct sr_dev_driver *di) | |
251 | { | |
252 | return std_dev_clear(di, clear_dev_context); | |
253 | } | |
254 | ||
255 | static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) | |
256 | { | |
257 | return std_init(sr_ctx, di, LOG_PREFIX); | |
258 | } | |
259 | ||
260 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
261 | { | |
262 | struct drv_context *drvc; | |
263 | struct dev_context *devc; | |
264 | struct sr_dev_inst *sdi; | |
265 | struct sr_usb_dev_inst *usb; | |
266 | struct sr_config *src; | |
267 | const struct dso_profile *prof; | |
268 | GSList *l, *devices, *conn_devices; | |
269 | struct libusb_device_descriptor des; | |
270 | libusb_device **devlist; | |
271 | int ret, i, j; | |
272 | const char *conn; | |
273 | char connection_id[64]; | |
274 | ||
275 | drvc = di->priv; | |
276 | ||
277 | devices = 0; | |
278 | ||
279 | conn = NULL; | |
280 | for (l = options; l; l = l->next) { | |
281 | src = l->data; | |
282 | if (src->key == SR_CONF_CONN) { | |
283 | conn = g_variant_get_string(src->data, NULL); | |
284 | break; | |
285 | } | |
286 | } | |
287 | if (conn) | |
288 | conn_devices = sr_usb_find(drvc->sr_ctx->libusb_ctx, conn); | |
289 | else | |
290 | conn_devices = NULL; | |
291 | ||
292 | /* Find all Hantek DSO devices and upload firmware to all of them. */ | |
293 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); | |
294 | for (i = 0; devlist[i]; i++) { | |
295 | if (conn) { | |
296 | usb = NULL; | |
297 | for (l = conn_devices; l; l = l->next) { | |
298 | usb = l->data; | |
299 | if (usb->bus == libusb_get_bus_number(devlist[i]) | |
300 | && usb->address == libusb_get_device_address(devlist[i])) | |
301 | break; | |
302 | } | |
303 | if (!l) | |
304 | /* This device matched none of the ones that | |
305 | * matched the conn specification. */ | |
306 | continue; | |
307 | } | |
308 | ||
309 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { | |
310 | sr_err("Failed to get device descriptor: %s.", | |
311 | libusb_error_name(ret)); | |
312 | continue; | |
313 | } | |
314 | ||
315 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); | |
316 | ||
317 | prof = NULL; | |
318 | for (j = 0; dev_profiles[j].orig_vid; j++) { | |
319 | if (des.idVendor == dev_profiles[j].orig_vid | |
320 | && des.idProduct == dev_profiles[j].orig_pid) { | |
321 | /* Device matches the pre-firmware profile. */ | |
322 | prof = &dev_profiles[j]; | |
323 | sr_dbg("Found a %s %s.", prof->vendor, prof->model); | |
324 | sdi = dso_dev_new(prof); | |
325 | sdi->connection_id = g_strdup(connection_id); | |
326 | devices = g_slist_append(devices, sdi); | |
327 | devc = sdi->priv; | |
328 | if (ezusb_upload_firmware(devlist[i], USB_CONFIGURATION, | |
329 | prof->firmware) == SR_OK) | |
330 | /* Remember when the firmware on this device was updated */ | |
331 | devc->fw_updated = g_get_monotonic_time(); | |
332 | else | |
333 | sr_err("Firmware upload failed"); | |
334 | /* Dummy USB address of 0xff will get overwritten later. */ | |
335 | sdi->conn = sr_usb_dev_inst_new( | |
336 | libusb_get_bus_number(devlist[i]), 0xff, NULL); | |
337 | break; | |
338 | } else if (des.idVendor == dev_profiles[j].fw_vid | |
339 | && des.idProduct == dev_profiles[j].fw_pid) { | |
340 | /* Device matches the post-firmware profile. */ | |
341 | prof = &dev_profiles[j]; | |
342 | sr_dbg("Found a %s %s.", prof->vendor, prof->model); | |
343 | sdi = dso_dev_new(prof); | |
344 | sdi->connection_id = g_strdup(connection_id); | |
345 | sdi->status = SR_ST_INACTIVE; | |
346 | devices = g_slist_append(devices, sdi); | |
347 | sdi->inst_type = SR_INST_USB; | |
348 | sdi->conn = sr_usb_dev_inst_new( | |
349 | libusb_get_bus_number(devlist[i]), | |
350 | libusb_get_device_address(devlist[i]), NULL); | |
351 | break; | |
352 | } | |
353 | } | |
354 | if (!prof) | |
355 | /* not a supported VID/PID */ | |
356 | continue; | |
357 | } | |
358 | libusb_free_device_list(devlist, 1); | |
359 | ||
360 | return devices; | |
361 | } | |
362 | ||
363 | static GSList *dev_list(const struct sr_dev_driver *di) | |
364 | { | |
365 | return ((struct drv_context *)(di->priv))->instances; | |
366 | } | |
367 | ||
368 | static int dev_open(struct sr_dev_inst *sdi) | |
369 | { | |
370 | struct dev_context *devc; | |
371 | struct sr_usb_dev_inst *usb; | |
372 | int64_t timediff_us, timediff_ms; | |
373 | int err; | |
374 | ||
375 | devc = sdi->priv; | |
376 | usb = sdi->conn; | |
377 | ||
378 | /* | |
379 | * If the firmware was recently uploaded, wait up to MAX_RENUM_DELAY_MS | |
380 | * for the FX2 to renumerate. | |
381 | */ | |
382 | err = SR_ERR; | |
383 | if (devc->fw_updated > 0) { | |
384 | sr_info("Waiting for device to reset."); | |
385 | /* Takes >= 300ms for the FX2 to be gone from the USB bus. */ | |
386 | g_usleep(300 * 1000); | |
387 | timediff_ms = 0; | |
388 | while (timediff_ms < MAX_RENUM_DELAY_MS) { | |
389 | if ((err = dso_open(sdi)) == SR_OK) | |
390 | break; | |
391 | g_usleep(100 * 1000); | |
392 | timediff_us = g_get_monotonic_time() - devc->fw_updated; | |
393 | timediff_ms = timediff_us / 1000; | |
394 | sr_spew("Waited %" PRIi64 " ms.", timediff_ms); | |
395 | } | |
396 | sr_info("Device came back after %d ms.", timediff_ms); | |
397 | } else { | |
398 | err = dso_open(sdi); | |
399 | } | |
400 | ||
401 | if (err != SR_OK) { | |
402 | sr_err("Unable to open device."); | |
403 | return SR_ERR; | |
404 | } | |
405 | ||
406 | err = libusb_claim_interface(usb->devhdl, USB_INTERFACE); | |
407 | if (err != 0) { | |
408 | sr_err("Unable to claim interface: %s.", | |
409 | libusb_error_name(err)); | |
410 | return SR_ERR; | |
411 | } | |
412 | ||
413 | return SR_OK; | |
414 | } | |
415 | ||
416 | static int dev_close(struct sr_dev_inst *sdi) | |
417 | { | |
418 | dso_close(sdi); | |
419 | ||
420 | return SR_OK; | |
421 | } | |
422 | ||
423 | static int cleanup(const struct sr_dev_driver *di) | |
424 | { | |
425 | return dev_clear(di); | |
426 | } | |
427 | ||
428 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
429 | const struct sr_channel_group *cg) | |
430 | { | |
431 | struct dev_context *devc; | |
432 | struct sr_usb_dev_inst *usb; | |
433 | char str[128], *s; | |
434 | const uint64_t *vdiv; | |
435 | int ch_idx; | |
436 | ||
437 | switch (key) { | |
438 | case SR_CONF_NUM_HDIV: | |
439 | *data = g_variant_new_int32(NUM_TIMEBASE); | |
440 | break; | |
441 | case SR_CONF_NUM_VDIV: | |
442 | *data = g_variant_new_int32(NUM_VDIV); | |
443 | break; | |
444 | } | |
445 | ||
446 | if (!sdi) | |
447 | return SR_ERR_ARG; | |
448 | ||
449 | devc = sdi->priv; | |
450 | if (!cg) { | |
451 | switch (key) { | |
452 | case SR_CONF_CONN: | |
453 | if (!sdi->conn) | |
454 | return SR_ERR_ARG; | |
455 | usb = sdi->conn; | |
456 | if (usb->address == 255) | |
457 | /* Device still needs to re-enumerate after firmware | |
458 | * upload, so we don't know its (future) address. */ | |
459 | return SR_ERR; | |
460 | snprintf(str, 128, "%d.%d", usb->bus, usb->address); | |
461 | *data = g_variant_new_string(str); | |
462 | break; | |
463 | case SR_CONF_TIMEBASE: | |
464 | *data = g_variant_new("(tt)", timebases[devc->timebase][0], | |
465 | timebases[devc->timebase][1]); | |
466 | break; | |
467 | case SR_CONF_BUFFERSIZE: | |
468 | *data = g_variant_new_uint64(devc->framesize); | |
469 | break; | |
470 | case SR_CONF_TRIGGER_SOURCE: | |
471 | *data = g_variant_new_string(devc->triggersource); | |
472 | break; | |
473 | case SR_CONF_TRIGGER_SLOPE: | |
474 | if (devc->triggerslope == SLOPE_POSITIVE) | |
475 | s = "r"; | |
476 | else | |
477 | s = "f"; | |
478 | *data = g_variant_new_string(s); | |
479 | break; | |
480 | case SR_CONF_HORIZ_TRIGGERPOS: | |
481 | *data = g_variant_new_double(devc->triggerposition); | |
482 | break; | |
483 | default: | |
484 | return SR_ERR_NA; | |
485 | } | |
486 | } else { | |
487 | if (sdi->channel_groups->data == cg) | |
488 | ch_idx = 0; | |
489 | else if (sdi->channel_groups->next->data == cg) | |
490 | ch_idx = 1; | |
491 | else | |
492 | return SR_ERR_ARG; | |
493 | switch(key) { | |
494 | case SR_CONF_FILTER: | |
495 | *data = g_variant_new_boolean(devc->filter[ch_idx]); | |
496 | break; | |
497 | case SR_CONF_VDIV: | |
498 | vdiv = vdivs[devc->voltage[ch_idx]]; | |
499 | *data = g_variant_new("(tt)", vdiv[0], vdiv[1]); | |
500 | break; | |
501 | case SR_CONF_COUPLING: | |
502 | *data = g_variant_new_string(coupling[devc->coupling[ch_idx]]); | |
503 | break; | |
504 | } | |
505 | } | |
506 | ||
507 | return SR_OK; | |
508 | } | |
509 | ||
510 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
511 | const struct sr_channel_group *cg) | |
512 | { | |
513 | struct dev_context *devc; | |
514 | double tmp_double; | |
515 | uint64_t tmp_u64, p, q; | |
516 | int tmp_int, ch_idx, ret; | |
517 | unsigned int i; | |
518 | const char *tmp_str; | |
519 | ||
520 | if (sdi->status != SR_ST_ACTIVE) | |
521 | return SR_ERR_DEV_CLOSED; | |
522 | ||
523 | ret = SR_OK; | |
524 | devc = sdi->priv; | |
525 | if (!cg) { | |
526 | switch (key) { | |
527 | case SR_CONF_LIMIT_FRAMES: | |
528 | devc->limit_frames = g_variant_get_uint64(data); | |
529 | break; | |
530 | case SR_CONF_TRIGGER_SLOPE: | |
531 | tmp_str = g_variant_get_string(data, NULL); | |
532 | if (!tmp_str || !(tmp_str[0] == 'f' || tmp_str[0] == 'r')) | |
533 | return SR_ERR_ARG; | |
534 | devc->triggerslope = (tmp_str[0] == 'r') | |
535 | ? SLOPE_POSITIVE : SLOPE_NEGATIVE; | |
536 | break; | |
537 | case SR_CONF_HORIZ_TRIGGERPOS: | |
538 | tmp_double = g_variant_get_double(data); | |
539 | if (tmp_double < 0.0 || tmp_double > 1.0) { | |
540 | sr_err("Trigger position should be between 0.0 and 1.0."); | |
541 | ret = SR_ERR_ARG; | |
542 | } else | |
543 | devc->triggerposition = tmp_double; | |
544 | break; | |
545 | case SR_CONF_BUFFERSIZE: | |
546 | tmp_u64 = g_variant_get_uint64(data); | |
547 | for (i = 0; i < 2; i++) { | |
548 | if (devc->profile->buffersizes[i] == tmp_u64) { | |
549 | devc->framesize = tmp_u64; | |
550 | break; | |
551 | } | |
552 | } | |
553 | if (i == 2) | |
554 | ret = SR_ERR_ARG; | |
555 | break; | |
556 | case SR_CONF_TIMEBASE: | |
557 | g_variant_get(data, "(tt)", &p, &q); | |
558 | tmp_int = -1; | |
559 | for (i = 0; i < ARRAY_SIZE(timebases); i++) { | |
560 | if (timebases[i][0] == p && timebases[i][1] == q) { | |
561 | tmp_int = i; | |
562 | break; | |
563 | } | |
564 | } | |
565 | if (tmp_int >= 0) | |
566 | devc->timebase = tmp_int; | |
567 | else | |
568 | ret = SR_ERR_ARG; | |
569 | break; | |
570 | case SR_CONF_TRIGGER_SOURCE: | |
571 | tmp_str = g_variant_get_string(data, NULL); | |
572 | for (i = 0; trigger_sources[i]; i++) { | |
573 | if (!strcmp(tmp_str, trigger_sources[i])) { | |
574 | devc->triggersource = g_strdup(tmp_str); | |
575 | break; | |
576 | } | |
577 | } | |
578 | if (trigger_sources[i] == 0) | |
579 | ret = SR_ERR_ARG; | |
580 | break; | |
581 | default: | |
582 | ret = SR_ERR_NA; | |
583 | break; | |
584 | } | |
585 | } else { | |
586 | if (sdi->channel_groups->data == cg) | |
587 | ch_idx = 0; | |
588 | else if (sdi->channel_groups->next->data == cg) | |
589 | ch_idx = 1; | |
590 | else | |
591 | return SR_ERR_ARG; | |
592 | switch (key) { | |
593 | case SR_CONF_FILTER: | |
594 | devc->filter[ch_idx] = g_variant_get_boolean(data); | |
595 | break; | |
596 | case SR_CONF_VDIV: | |
597 | g_variant_get(data, "(tt)", &p, &q); | |
598 | tmp_int = -1; | |
599 | for (i = 0; i < ARRAY_SIZE(vdivs); i++) { | |
600 | if (vdivs[i][0] == p && vdivs[i][1] == q) { | |
601 | tmp_int = i; | |
602 | break; | |
603 | } | |
604 | } | |
605 | if (tmp_int >= 0) { | |
606 | devc->voltage[ch_idx] = tmp_int; | |
607 | } else | |
608 | ret = SR_ERR_ARG; | |
609 | break; | |
610 | case SR_CONF_COUPLING: | |
611 | tmp_str = g_variant_get_string(data, NULL); | |
612 | for (i = 0; coupling[i]; i++) { | |
613 | if (!strcmp(tmp_str, coupling[i])) { | |
614 | devc->coupling[ch_idx] = i; | |
615 | break; | |
616 | } | |
617 | } | |
618 | if (coupling[i] == 0) | |
619 | ret = SR_ERR_ARG; | |
620 | break; | |
621 | default: | |
622 | ret = SR_ERR_NA; | |
623 | break; | |
624 | } | |
625 | } | |
626 | ||
627 | return ret; | |
628 | } | |
629 | ||
630 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
631 | const struct sr_channel_group *cg) | |
632 | { | |
633 | struct dev_context *devc; | |
634 | GVariant *tuple, *rational[2]; | |
635 | GVariantBuilder gvb; | |
636 | unsigned int i; | |
637 | ||
638 | if (key == SR_CONF_SCAN_OPTIONS) { | |
639 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
640 | scanopts, ARRAY_SIZE(scanopts), sizeof(uint32_t)); | |
641 | return SR_OK; | |
642 | } else if (key == SR_CONF_DEVICE_OPTIONS && !sdi) { | |
643 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
644 | drvopts, ARRAY_SIZE(drvopts), sizeof(uint32_t)); | |
645 | return SR_OK; | |
646 | } | |
647 | ||
648 | if (!sdi) | |
649 | return SR_ERR_ARG; | |
650 | ||
651 | if (!cg) { | |
652 | switch (key) { | |
653 | case SR_CONF_DEVICE_OPTIONS: | |
654 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
655 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
656 | break; | |
657 | case SR_CONF_BUFFERSIZE: | |
658 | if (!sdi) | |
659 | return SR_ERR_ARG; | |
660 | devc = sdi->priv; | |
661 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT64, | |
662 | devc->profile->buffersizes, 2, sizeof(uint64_t)); | |
663 | break; | |
664 | case SR_CONF_TIMEBASE: | |
665 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
666 | for (i = 0; i < ARRAY_SIZE(timebases); i++) { | |
667 | rational[0] = g_variant_new_uint64(timebases[i][0]); | |
668 | rational[1] = g_variant_new_uint64(timebases[i][1]); | |
669 | tuple = g_variant_new_tuple(rational, 2); | |
670 | g_variant_builder_add_value(&gvb, tuple); | |
671 | } | |
672 | *data = g_variant_builder_end(&gvb); | |
673 | break; | |
674 | case SR_CONF_TRIGGER_SOURCE: | |
675 | *data = g_variant_new_strv(trigger_sources, | |
676 | ARRAY_SIZE(trigger_sources)); | |
677 | break; | |
678 | case SR_CONF_TRIGGER_SLOPE: | |
679 | *data = g_variant_new_strv(trigger_slopes, | |
680 | ARRAY_SIZE(trigger_slopes)); | |
681 | break; | |
682 | default: | |
683 | return SR_ERR_NA; | |
684 | } | |
685 | } else { | |
686 | switch (key) { | |
687 | case SR_CONF_DEVICE_OPTIONS: | |
688 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
689 | devopts_cg, ARRAY_SIZE(devopts_cg), sizeof(uint32_t)); | |
690 | break; | |
691 | case SR_CONF_COUPLING: | |
692 | *data = g_variant_new_strv(coupling, ARRAY_SIZE(coupling)); | |
693 | break; | |
694 | case SR_CONF_VDIV: | |
695 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
696 | for (i = 0; i < ARRAY_SIZE(vdivs); i++) { | |
697 | rational[0] = g_variant_new_uint64(vdivs[i][0]); | |
698 | rational[1] = g_variant_new_uint64(vdivs[i][1]); | |
699 | tuple = g_variant_new_tuple(rational, 2); | |
700 | g_variant_builder_add_value(&gvb, tuple); | |
701 | } | |
702 | *data = g_variant_builder_end(&gvb); | |
703 | break; | |
704 | default: | |
705 | return SR_ERR_NA; | |
706 | } | |
707 | } | |
708 | ||
709 | return SR_OK; | |
710 | } | |
711 | ||
712 | static void send_chunk(struct sr_dev_inst *sdi, unsigned char *buf, | |
713 | int num_samples) | |
714 | { | |
715 | struct sr_datafeed_packet packet; | |
716 | struct sr_datafeed_analog analog; | |
717 | struct dev_context *devc; | |
718 | float ch1, ch2, range; | |
719 | int num_channels, data_offset, i; | |
720 | ||
721 | devc = sdi->priv; | |
722 | num_channels = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; | |
723 | packet.type = SR_DF_ANALOG; | |
724 | packet.payload = &analog; | |
725 | /* TODO: support for 5xxx series 9-bit samples */ | |
726 | analog.channels = devc->enabled_channels; | |
727 | analog.num_samples = num_samples; | |
728 | analog.mq = SR_MQ_VOLTAGE; | |
729 | analog.unit = SR_UNIT_VOLT; | |
730 | analog.mqflags = 0; | |
731 | /* TODO: Check malloc return value. */ | |
732 | analog.data = g_try_malloc(analog.num_samples * sizeof(float) * num_channels); | |
733 | data_offset = 0; | |
734 | for (i = 0; i < analog.num_samples; i++) { | |
735 | /* | |
736 | * The device always sends data for both channels. If a channel | |
737 | * is disabled, it contains a copy of the enabled channel's | |
738 | * data. However, we only send the requested channels to | |
739 | * the bus. | |
740 | * | |
741 | * Voltage values are encoded as a value 0-255 (0-512 on the | |
742 | * DSO-5200*), where the value is a point in the range | |
743 | * represented by the vdiv setting. There are 8 vertical divs, | |
744 | * so e.g. 500mV/div represents 4V peak-to-peak where 0 = -2V | |
745 | * and 255 = +2V. | |
746 | */ | |
747 | /* TODO: Support for DSO-5xxx series 9-bit samples. */ | |
748 | if (devc->ch1_enabled) { | |
749 | range = ((float)vdivs[devc->voltage[0]][0] / vdivs[devc->voltage[0]][1]) * 8; | |
750 | ch1 = range / 255 * *(buf + i * 2 + 1); | |
751 | /* Value is centered around 0V. */ | |
752 | ch1 -= range / 2; | |
753 | analog.data[data_offset++] = ch1; | |
754 | } | |
755 | if (devc->ch2_enabled) { | |
756 | range = ((float)vdivs[devc->voltage[1]][0] / vdivs[devc->voltage[1]][1]) * 8; | |
757 | ch2 = range / 255 * *(buf + i * 2); | |
758 | ch2 -= range / 2; | |
759 | analog.data[data_offset++] = ch2; | |
760 | } | |
761 | } | |
762 | sr_session_send(devc->cb_data, &packet); | |
763 | } | |
764 | ||
765 | /* | |
766 | * Called by libusb (as triggered by handle_event()) when a transfer comes in. | |
767 | * Only channel data comes in asynchronously, and all transfers for this are | |
768 | * queued up beforehand, so this just needs to chuck the incoming data onto | |
769 | * the libsigrok session bus. | |
770 | */ | |
771 | static void receive_transfer(struct libusb_transfer *transfer) | |
772 | { | |
773 | struct sr_datafeed_packet packet; | |
774 | struct sr_dev_inst *sdi; | |
775 | struct dev_context *devc; | |
776 | int num_samples, pre; | |
777 | ||
778 | sdi = transfer->user_data; | |
779 | devc = sdi->priv; | |
780 | sr_spew("receive_transfer(): status %d received %d bytes.", | |
781 | transfer->status, transfer->actual_length); | |
782 | ||
783 | if (transfer->actual_length == 0) | |
784 | /* Nothing to send to the bus. */ | |
785 | return; | |
786 | ||
787 | num_samples = transfer->actual_length / 2; | |
788 | ||
789 | sr_spew("Got %d-%d/%d samples in frame.", devc->samp_received + 1, | |
790 | devc->samp_received + num_samples, devc->framesize); | |
791 | ||
792 | /* | |
793 | * The device always sends a full frame, but the beginning of the frame | |
794 | * doesn't represent the trigger point. The offset at which the trigger | |
795 | * happened came in with the capture state, so we need to start sending | |
796 | * from there up the session bus. The samples in the frame buffer | |
797 | * before that trigger point came after the end of the device's frame | |
798 | * buffer was reached, and it wrapped around to overwrite up until the | |
799 | * trigger point. | |
800 | */ | |
801 | if (devc->samp_received < devc->trigger_offset) { | |
802 | /* Trigger point not yet reached. */ | |
803 | if (devc->samp_received + num_samples < devc->trigger_offset) { | |
804 | /* The entire chunk is before the trigger point. */ | |
805 | memcpy(devc->framebuf + devc->samp_buffered * 2, | |
806 | transfer->buffer, num_samples * 2); | |
807 | devc->samp_buffered += num_samples; | |
808 | } else { | |
809 | /* | |
810 | * This chunk hits or overruns the trigger point. | |
811 | * Store the part before the trigger fired, and | |
812 | * send the rest up to the session bus. | |
813 | */ | |
814 | pre = devc->trigger_offset - devc->samp_received; | |
815 | memcpy(devc->framebuf + devc->samp_buffered * 2, | |
816 | transfer->buffer, pre * 2); | |
817 | devc->samp_buffered += pre; | |
818 | ||
819 | /* The rest of this chunk starts with the trigger point. */ | |
820 | sr_dbg("Reached trigger point, %d samples buffered.", | |
821 | devc->samp_buffered); | |
822 | ||
823 | /* Avoid the corner case where the chunk ended at | |
824 | * exactly the trigger point. */ | |
825 | if (num_samples > pre) | |
826 | send_chunk(sdi, transfer->buffer + pre * 2, | |
827 | num_samples - pre); | |
828 | } | |
829 | } else { | |
830 | /* Already past the trigger point, just send it all out. */ | |
831 | send_chunk(sdi, transfer->buffer, | |
832 | num_samples); | |
833 | } | |
834 | ||
835 | devc->samp_received += num_samples; | |
836 | ||
837 | /* Everything in this transfer was either copied to the buffer or | |
838 | * sent to the session bus. */ | |
839 | g_free(transfer->buffer); | |
840 | libusb_free_transfer(transfer); | |
841 | ||
842 | if (devc->samp_received >= devc->framesize) { | |
843 | /* That was the last chunk in this frame. Send the buffered | |
844 | * pre-trigger samples out now, in one big chunk. */ | |
845 | sr_dbg("End of frame, sending %d pre-trigger buffered samples.", | |
846 | devc->samp_buffered); | |
847 | send_chunk(sdi, devc->framebuf, devc->samp_buffered); | |
848 | ||
849 | /* Mark the end of this frame. */ | |
850 | packet.type = SR_DF_FRAME_END; | |
851 | sr_session_send(devc->cb_data, &packet); | |
852 | ||
853 | if (devc->limit_frames && ++devc->num_frames == devc->limit_frames) { | |
854 | /* Terminate session */ | |
855 | devc->dev_state = STOPPING; | |
856 | } else { | |
857 | devc->dev_state = NEW_CAPTURE; | |
858 | } | |
859 | } | |
860 | } | |
861 | ||
862 | static int handle_event(int fd, int revents, void *cb_data) | |
863 | { | |
864 | const struct sr_dev_inst *sdi; | |
865 | struct sr_datafeed_packet packet; | |
866 | struct timeval tv; | |
867 | struct sr_dev_driver *di; | |
868 | struct dev_context *devc; | |
869 | struct drv_context *drvc; | |
870 | int num_channels; | |
871 | uint32_t trigger_offset; | |
872 | uint8_t capturestate; | |
873 | ||
874 | (void)fd; | |
875 | (void)revents; | |
876 | ||
877 | sdi = cb_data; | |
878 | di = sdi->driver; | |
879 | drvc = di->priv; | |
880 | devc = sdi->priv; | |
881 | if (devc->dev_state == STOPPING) { | |
882 | /* We've been told to wind up the acquisition. */ | |
883 | sr_dbg("Stopping acquisition."); | |
884 | /* | |
885 | * TODO: Doesn't really cancel pending transfers so they might | |
886 | * come in after SR_DF_END is sent. | |
887 | */ | |
888 | usb_source_remove(sdi->session, drvc->sr_ctx); | |
889 | ||
890 | packet.type = SR_DF_END; | |
891 | sr_session_send(sdi, &packet); | |
892 | ||
893 | devc->dev_state = IDLE; | |
894 | ||
895 | return TRUE; | |
896 | } | |
897 | ||
898 | /* Always handle pending libusb events. */ | |
899 | tv.tv_sec = tv.tv_usec = 0; | |
900 | libusb_handle_events_timeout(drvc->sr_ctx->libusb_ctx, &tv); | |
901 | ||
902 | /* TODO: ugh */ | |
903 | if (devc->dev_state == NEW_CAPTURE) { | |
904 | if (dso_capture_start(sdi) != SR_OK) | |
905 | return TRUE; | |
906 | if (dso_enable_trigger(sdi) != SR_OK) | |
907 | return TRUE; | |
908 | // if (dso_force_trigger(sdi) != SR_OK) | |
909 | // return TRUE; | |
910 | sr_dbg("Successfully requested next chunk."); | |
911 | devc->dev_state = CAPTURE; | |
912 | return TRUE; | |
913 | } | |
914 | if (devc->dev_state != CAPTURE) | |
915 | return TRUE; | |
916 | ||
917 | if ((dso_get_capturestate(sdi, &capturestate, &trigger_offset)) != SR_OK) | |
918 | return TRUE; | |
919 | ||
920 | sr_dbg("Capturestate %d.", capturestate); | |
921 | sr_dbg("Trigger offset 0x%.6x.", trigger_offset); | |
922 | switch (capturestate) { | |
923 | case CAPTURE_EMPTY: | |
924 | if (++devc->capture_empty_count >= MAX_CAPTURE_EMPTY) { | |
925 | devc->capture_empty_count = 0; | |
926 | if (dso_capture_start(sdi) != SR_OK) | |
927 | break; | |
928 | if (dso_enable_trigger(sdi) != SR_OK) | |
929 | break; | |
930 | // if (dso_force_trigger(sdi) != SR_OK) | |
931 | // break; | |
932 | sr_dbg("Successfully requested next chunk."); | |
933 | } | |
934 | break; | |
935 | case CAPTURE_FILLING: | |
936 | /* No data yet. */ | |
937 | break; | |
938 | case CAPTURE_READY_8BIT: | |
939 | /* Remember where in the captured frame the trigger is. */ | |
940 | devc->trigger_offset = trigger_offset; | |
941 | ||
942 | num_channels = (devc->ch1_enabled && devc->ch2_enabled) ? 2 : 1; | |
943 | /* TODO: Check malloc return value. */ | |
944 | devc->framebuf = g_try_malloc(devc->framesize * num_channels * 2); | |
945 | devc->samp_buffered = devc->samp_received = 0; | |
946 | ||
947 | /* Tell the scope to send us the first frame. */ | |
948 | if (dso_get_channeldata(sdi, receive_transfer) != SR_OK) | |
949 | break; | |
950 | ||
951 | /* | |
952 | * Don't hit the state machine again until we're done fetching | |
953 | * the data we just told the scope to send. | |
954 | */ | |
955 | devc->dev_state = FETCH_DATA; | |
956 | ||
957 | /* Tell the frontend a new frame is on the way. */ | |
958 | packet.type = SR_DF_FRAME_BEGIN; | |
959 | sr_session_send(sdi, &packet); | |
960 | break; | |
961 | case CAPTURE_READY_9BIT: | |
962 | /* TODO */ | |
963 | sr_err("Not yet supported."); | |
964 | break; | |
965 | case CAPTURE_TIMEOUT: | |
966 | /* Doesn't matter, we'll try again next time. */ | |
967 | break; | |
968 | default: | |
969 | sr_dbg("Unknown capture state: %d.", capturestate); | |
970 | break; | |
971 | } | |
972 | ||
973 | return TRUE; | |
974 | } | |
975 | ||
976 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data) | |
977 | { | |
978 | struct dev_context *devc; | |
979 | struct sr_dev_driver *di = sdi->driver; | |
980 | struct drv_context *drvc = di->priv; | |
981 | ||
982 | if (sdi->status != SR_ST_ACTIVE) | |
983 | return SR_ERR_DEV_CLOSED; | |
984 | ||
985 | devc = sdi->priv; | |
986 | devc->cb_data = cb_data; | |
987 | ||
988 | if (configure_channels(sdi) != SR_OK) { | |
989 | sr_err("Failed to configure channels."); | |
990 | return SR_ERR; | |
991 | } | |
992 | ||
993 | if (dso_init(sdi) != SR_OK) | |
994 | return SR_ERR; | |
995 | ||
996 | if (dso_capture_start(sdi) != SR_OK) | |
997 | return SR_ERR; | |
998 | ||
999 | devc->dev_state = CAPTURE; | |
1000 | usb_source_add(sdi->session, drvc->sr_ctx, TICK, handle_event, (void *)sdi); | |
1001 | ||
1002 | /* Send header packet to the session bus. */ | |
1003 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
1004 | ||
1005 | return SR_OK; | |
1006 | } | |
1007 | ||
1008 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
1009 | { | |
1010 | struct dev_context *devc; | |
1011 | ||
1012 | (void)cb_data; | |
1013 | ||
1014 | if (sdi->status != SR_ST_ACTIVE) | |
1015 | return SR_ERR; | |
1016 | ||
1017 | devc = sdi->priv; | |
1018 | devc->dev_state = STOPPING; | |
1019 | ||
1020 | return SR_OK; | |
1021 | } | |
1022 | ||
1023 | SR_PRIV struct sr_dev_driver hantek_dso_driver_info = { | |
1024 | .name = "hantek-dso", | |
1025 | .longname = "Hantek DSO", | |
1026 | .api_version = 1, | |
1027 | .init = init, | |
1028 | .cleanup = cleanup, | |
1029 | .scan = scan, | |
1030 | .dev_list = dev_list, | |
1031 | .dev_clear = dev_clear, | |
1032 | .config_get = config_get, | |
1033 | .config_set = config_set, | |
1034 | .config_list = config_list, | |
1035 | .dev_open = dev_open, | |
1036 | .dev_close = dev_close, | |
1037 | .dev_acquisition_start = dev_acquisition_start, | |
1038 | .dev_acquisition_stop = dev_acquisition_stop, | |
1039 | .priv = NULL, | |
1040 | }; |