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