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1 | /* | |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2010-2012 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 "protocol.h" | |
21 | ||
22 | #define VENDOR_NAME "ZEROPLUS" | |
23 | #define USB_INTERFACE 0 | |
24 | #define USB_CONFIGURATION 1 | |
25 | #define NUM_TRIGGER_STAGES 4 | |
26 | #define TRIGGER_TYPE "01" | |
27 | #define PACKET_SIZE 2048 /* ?? */ | |
28 | ||
29 | //#define ZP_EXPERIMENTAL | |
30 | ||
31 | struct zp_model { | |
32 | uint16_t vid; | |
33 | uint16_t pid; | |
34 | char *model_name; | |
35 | unsigned int channels; | |
36 | unsigned int sample_depth; /* In Ksamples/channel */ | |
37 | unsigned int max_sampling_freq; | |
38 | }; | |
39 | ||
40 | /* | |
41 | * Note -- 16032, 16064 and 16128 *usually* -- but not always -- have the | |
42 | * same 128K sample depth. | |
43 | */ | |
44 | static const struct zp_model zeroplus_models[] = { | |
45 | {0x0c12, 0x7002, "LAP-16128U", 16, 128, 200}, | |
46 | {0x0c12, 0x7009, "LAP-C(16064)", 16, 64, 100}, | |
47 | {0x0c12, 0x700a, "LAP-C(16128)", 16, 128, 200}, | |
48 | {0x0c12, 0x700b, "LAP-C(32128)", 32, 128, 200}, | |
49 | {0x0c12, 0x700c, "LAP-C(321000)", 32, 1024, 200}, | |
50 | {0x0c12, 0x700d, "LAP-C(322000)", 32, 2048, 200}, | |
51 | {0x0c12, 0x700e, "LAP-C(16032)", 16, 32, 100}, | |
52 | {0x0c12, 0x7016, "LAP-C(162000)", 16, 2048, 200}, | |
53 | { 0, 0, 0, 0, 0, 0 } | |
54 | }; | |
55 | ||
56 | static const int32_t hwcaps[] = { | |
57 | SR_CONF_LOGIC_ANALYZER, | |
58 | SR_CONF_SAMPLERATE, | |
59 | SR_CONF_CAPTURE_RATIO, | |
60 | SR_CONF_VOLTAGE_THRESHOLD, | |
61 | SR_CONF_LIMIT_SAMPLES, | |
62 | }; | |
63 | ||
64 | /* | |
65 | * ZEROPLUS LAP-C (16032) numbers the 16 probes A0-A7 and B0-B7. | |
66 | * We currently ignore other untested/unsupported devices here. | |
67 | */ | |
68 | static const char *probe_names[] = { | |
69 | "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7", | |
70 | "B0", "B1", "B2", "B3", "B4", "B5", "B6", "B7", | |
71 | "C0", "C1", "C2", "C3", "C4", "C5", "C6", "C7", | |
72 | "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", | |
73 | NULL, | |
74 | }; | |
75 | ||
76 | SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info; | |
77 | static struct sr_dev_driver *di = &zeroplus_logic_cube_driver_info; | |
78 | ||
79 | /* | |
80 | * The hardware supports more samplerates than these, but these are the | |
81 | * options hardcoded into the vendor's Windows GUI. | |
82 | */ | |
83 | ||
84 | static const uint64_t samplerates_100[] = { | |
85 | SR_HZ(100), | |
86 | SR_HZ(500), | |
87 | SR_KHZ(1), | |
88 | SR_KHZ(5), | |
89 | SR_KHZ(25), | |
90 | SR_KHZ(50), | |
91 | SR_KHZ(100), | |
92 | SR_KHZ(200), | |
93 | SR_KHZ(400), | |
94 | SR_KHZ(800), | |
95 | SR_MHZ(1), | |
96 | SR_MHZ(10), | |
97 | SR_MHZ(25), | |
98 | SR_MHZ(50), | |
99 | SR_MHZ(80), | |
100 | SR_MHZ(100), | |
101 | }; | |
102 | ||
103 | const uint64_t samplerates_200[] = { | |
104 | SR_HZ(100), | |
105 | SR_HZ(500), | |
106 | SR_KHZ(1), | |
107 | SR_KHZ(5), | |
108 | SR_KHZ(25), | |
109 | SR_KHZ(50), | |
110 | SR_KHZ(100), | |
111 | SR_KHZ(200), | |
112 | SR_KHZ(400), | |
113 | SR_KHZ(800), | |
114 | SR_MHZ(1), | |
115 | SR_MHZ(10), | |
116 | SR_MHZ(25), | |
117 | SR_MHZ(50), | |
118 | SR_MHZ(80), | |
119 | SR_MHZ(100), | |
120 | SR_MHZ(150), | |
121 | SR_MHZ(200), | |
122 | }; | |
123 | ||
124 | static int dev_close(struct sr_dev_inst *sdi); | |
125 | ||
126 | #if 0 | |
127 | static int configure_probes(const struct sr_dev_inst *sdi) | |
128 | { | |
129 | struct dev_context *devc; | |
130 | const struct sr_probe *probe; | |
131 | const GSList *l; | |
132 | int probe_bit, stage, i; | |
133 | char *tc; | |
134 | ||
135 | /* Note: sdi and sdi->priv are non-NULL, the caller checked this. */ | |
136 | devc = sdi->priv; | |
137 | ||
138 | devc->probe_mask = 0; | |
139 | for (i = 0; i < NUM_TRIGGER_STAGES; i++) { | |
140 | devc->trigger_mask[i] = 0; | |
141 | devc->trigger_value[i] = 0; | |
142 | } | |
143 | ||
144 | stage = -1; | |
145 | for (l = sdi->probes; l; l = l->next) { | |
146 | probe = (struct sr_probe *)l->data; | |
147 | if (probe->enabled == FALSE) | |
148 | continue; | |
149 | probe_bit = 1 << (probe->index); | |
150 | devc->probe_mask |= probe_bit; | |
151 | ||
152 | if (probe->trigger) { | |
153 | stage = 0; | |
154 | for (tc = probe->trigger; *tc; tc++) { | |
155 | devc->trigger_mask[stage] |= probe_bit; | |
156 | if (*tc == '1') | |
157 | devc->trigger_value[stage] |= probe_bit; | |
158 | stage++; | |
159 | if (stage > NUM_TRIGGER_STAGES) | |
160 | return SR_ERR; | |
161 | } | |
162 | } | |
163 | } | |
164 | ||
165 | return SR_OK; | |
166 | } | |
167 | #endif | |
168 | ||
169 | static int configure_probes(const struct sr_dev_inst *sdi) | |
170 | { | |
171 | struct dev_context *devc; | |
172 | const GSList *l; | |
173 | const struct sr_probe *probe; | |
174 | char *tc; | |
175 | int type; | |
176 | ||
177 | /* Note: sdi and sdi->priv are non-NULL, the caller checked this. */ | |
178 | devc = sdi->priv; | |
179 | ||
180 | for (l = sdi->probes; l; l = l->next) { | |
181 | probe = (struct sr_probe *)l->data; | |
182 | if (probe->enabled == FALSE) | |
183 | continue; | |
184 | ||
185 | if ((tc = probe->trigger)) { | |
186 | switch (*tc) { | |
187 | case '1': | |
188 | type = TRIGGER_HIGH; | |
189 | break; | |
190 | case '0': | |
191 | type = TRIGGER_LOW; | |
192 | break; | |
193 | #if 0 | |
194 | case 'r': | |
195 | type = TRIGGER_POSEDGE; | |
196 | break; | |
197 | case 'f': | |
198 | type = TRIGGER_NEGEDGE; | |
199 | break; | |
200 | case 'c': | |
201 | type = TRIGGER_ANYEDGE; | |
202 | break; | |
203 | #endif | |
204 | default: | |
205 | return SR_ERR; | |
206 | } | |
207 | analyzer_add_trigger(probe->index, type); | |
208 | devc->trigger = 1; | |
209 | } | |
210 | } | |
211 | ||
212 | return SR_OK; | |
213 | } | |
214 | ||
215 | SR_PRIV int zp_set_samplerate(struct dev_context *devc, uint64_t samplerate) | |
216 | { | |
217 | int i; | |
218 | ||
219 | for (i = 0; ARRAY_SIZE(samplerates_200); i++) | |
220 | if (samplerate == samplerates_200[i]) | |
221 | break; | |
222 | ||
223 | if (i == ARRAY_SIZE(samplerates_200) || samplerate > devc->max_samplerate) { | |
224 | sr_err("Unsupported samplerate: %" PRIu64 "Hz.", samplerate); | |
225 | return SR_ERR_ARG; | |
226 | } | |
227 | ||
228 | sr_info("Setting samplerate to %" PRIu64 "Hz.", samplerate); | |
229 | ||
230 | if (samplerate >= SR_MHZ(1)) | |
231 | analyzer_set_freq(samplerate / SR_MHZ(1), FREQ_SCALE_MHZ); | |
232 | else if (samplerate >= SR_KHZ(1)) | |
233 | analyzer_set_freq(samplerate / SR_KHZ(1), FREQ_SCALE_KHZ); | |
234 | else | |
235 | analyzer_set_freq(samplerate, FREQ_SCALE_HZ); | |
236 | ||
237 | devc->cur_samplerate = samplerate; | |
238 | ||
239 | return SR_OK; | |
240 | } | |
241 | ||
242 | static int init(struct sr_context *sr_ctx) | |
243 | { | |
244 | return std_init(sr_ctx, di, LOG_PREFIX); | |
245 | } | |
246 | ||
247 | static GSList *scan(GSList *options) | |
248 | { | |
249 | struct sr_dev_inst *sdi; | |
250 | struct sr_probe *probe; | |
251 | struct drv_context *drvc; | |
252 | struct dev_context *devc; | |
253 | const struct zp_model *prof; | |
254 | struct libusb_device_descriptor des; | |
255 | libusb_device **devlist; | |
256 | GSList *devices; | |
257 | int ret, devcnt, i, j; | |
258 | ||
259 | (void)options; | |
260 | ||
261 | drvc = di->priv; | |
262 | ||
263 | devices = NULL; | |
264 | ||
265 | /* Find all ZEROPLUS analyzers and add them to device list. */ | |
266 | devcnt = 0; | |
267 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); /* TODO: Errors. */ | |
268 | ||
269 | for (i = 0; devlist[i]; i++) { | |
270 | ret = libusb_get_device_descriptor(devlist[i], &des); | |
271 | if (ret != 0) { | |
272 | sr_err("Failed to get device descriptor: %s.", | |
273 | libusb_error_name(ret)); | |
274 | continue; | |
275 | } | |
276 | ||
277 | prof = NULL; | |
278 | for (j = 0; j < zeroplus_models[j].vid; j++) { | |
279 | if (des.idVendor == zeroplus_models[j].vid && | |
280 | des.idProduct == zeroplus_models[j].pid) { | |
281 | prof = &zeroplus_models[j]; | |
282 | } | |
283 | } | |
284 | /* Skip if the device was not found. */ | |
285 | if (!prof) | |
286 | continue; | |
287 | sr_info("Found ZEROPLUS %s.", prof->model_name); | |
288 | ||
289 | /* Register the device with libsigrok. */ | |
290 | if (!(sdi = sr_dev_inst_new(devcnt, SR_ST_INACTIVE, | |
291 | VENDOR_NAME, prof->model_name, NULL))) { | |
292 | sr_err("%s: sr_dev_inst_new failed", __func__); | |
293 | return NULL; | |
294 | } | |
295 | sdi->driver = di; | |
296 | ||
297 | /* Allocate memory for our private driver context. */ | |
298 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { | |
299 | sr_err("Device context malloc failed."); | |
300 | return NULL; | |
301 | } | |
302 | ||
303 | sdi->priv = devc; | |
304 | devc->prof = prof; | |
305 | devc->num_channels = prof->channels; | |
306 | #ifdef ZP_EXPERIMENTAL | |
307 | devc->max_sample_depth = 128 * 1024; | |
308 | devc->max_samplerate = 200; | |
309 | #else | |
310 | devc->max_sample_depth = prof->sample_depth * 1024; | |
311 | devc->max_samplerate = prof->max_sampling_freq; | |
312 | #endif | |
313 | devc->max_samplerate *= SR_MHZ(1); | |
314 | devc->memory_size = MEMORY_SIZE_8K; | |
315 | // memset(devc->trigger_buffer, 0, NUM_TRIGGER_STAGES); | |
316 | ||
317 | /* Fill in probelist according to this device's profile. */ | |
318 | for (j = 0; j < devc->num_channels; j++) { | |
319 | if (!(probe = sr_probe_new(j, SR_PROBE_LOGIC, TRUE, | |
320 | probe_names[j]))) | |
321 | return NULL; | |
322 | sdi->probes = g_slist_append(sdi->probes, probe); | |
323 | } | |
324 | ||
325 | devices = g_slist_append(devices, sdi); | |
326 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
327 | sdi->inst_type = SR_INST_USB; | |
328 | sdi->conn = sr_usb_dev_inst_new( | |
329 | libusb_get_bus_number(devlist[i]), | |
330 | libusb_get_device_address(devlist[i]), NULL); | |
331 | devcnt++; | |
332 | ||
333 | } | |
334 | libusb_free_device_list(devlist, 1); | |
335 | ||
336 | return devices; | |
337 | } | |
338 | ||
339 | static GSList *dev_list(void) | |
340 | { | |
341 | return ((struct drv_context *)(di->priv))->instances; | |
342 | } | |
343 | ||
344 | static int dev_open(struct sr_dev_inst *sdi) | |
345 | { | |
346 | struct dev_context *devc; | |
347 | struct drv_context *drvc; | |
348 | struct sr_usb_dev_inst *usb; | |
349 | libusb_device **devlist, *dev; | |
350 | struct libusb_device_descriptor des; | |
351 | int device_count, ret, i; | |
352 | ||
353 | drvc = di->priv; | |
354 | usb = sdi->conn; | |
355 | ||
356 | if (!(devc = sdi->priv)) { | |
357 | sr_err("%s: sdi->priv was NULL", __func__); | |
358 | return SR_ERR_ARG; | |
359 | } | |
360 | ||
361 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, | |
362 | &devlist); | |
363 | if (device_count < 0) { | |
364 | sr_err("Failed to retrieve device list."); | |
365 | return SR_ERR; | |
366 | } | |
367 | ||
368 | dev = NULL; | |
369 | for (i = 0; i < device_count; i++) { | |
370 | if ((ret = libusb_get_device_descriptor(devlist[i], &des))) { | |
371 | sr_err("Failed to get device descriptor: %s.", | |
372 | libusb_error_name(ret)); | |
373 | continue; | |
374 | } | |
375 | if (libusb_get_bus_number(devlist[i]) == usb->bus | |
376 | && libusb_get_device_address(devlist[i]) == usb->address) { | |
377 | dev = devlist[i]; | |
378 | break; | |
379 | } | |
380 | } | |
381 | if (!dev) { | |
382 | sr_err("Device on bus %d address %d disappeared!", | |
383 | usb->bus, usb->address); | |
384 | return SR_ERR; | |
385 | } | |
386 | ||
387 | if (!(ret = libusb_open(dev, &(usb->devhdl)))) { | |
388 | sdi->status = SR_ST_ACTIVE; | |
389 | sr_info("Opened device %d on %d.%d interface %d.", | |
390 | sdi->index, usb->bus, usb->address, USB_INTERFACE); | |
391 | } else { | |
392 | sr_err("Failed to open device: %s.", libusb_error_name(ret)); | |
393 | return SR_ERR; | |
394 | } | |
395 | ||
396 | ret = libusb_set_configuration(usb->devhdl, USB_CONFIGURATION); | |
397 | if (ret < 0) { | |
398 | sr_err("Unable to set USB configuration %d: %s.", | |
399 | USB_CONFIGURATION, libusb_error_name(ret)); | |
400 | return SR_ERR; | |
401 | } | |
402 | ||
403 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); | |
404 | if (ret != 0) { | |
405 | sr_err("Unable to claim interface: %s.", | |
406 | libusb_error_name(ret)); | |
407 | return SR_ERR; | |
408 | } | |
409 | ||
410 | /* Set default configuration after power on. */ | |
411 | if (analyzer_read_status(usb->devhdl) == 0) | |
412 | analyzer_configure(usb->devhdl); | |
413 | ||
414 | analyzer_reset(usb->devhdl); | |
415 | analyzer_initialize(usb->devhdl); | |
416 | ||
417 | //analyzer_set_memory_size(MEMORY_SIZE_512K); | |
418 | // analyzer_set_freq(g_freq, g_freq_scale); | |
419 | analyzer_set_trigger_count(1); | |
420 | // analyzer_set_ramsize_trigger_address((((100 - g_pre_trigger) | |
421 | // * get_memory_size(g_memory_size)) / 100) >> 2); | |
422 | ||
423 | #if 0 | |
424 | if (g_double_mode == 1) | |
425 | analyzer_set_compression(COMPRESSION_DOUBLE); | |
426 | else if (g_compression == 1) | |
427 | analyzer_set_compression(COMPRESSION_ENABLE); | |
428 | else | |
429 | #endif | |
430 | analyzer_set_compression(COMPRESSION_NONE); | |
431 | ||
432 | if (devc->cur_samplerate == 0) { | |
433 | /* Samplerate hasn't been set. Default to 1MHz. */ | |
434 | analyzer_set_freq(1, FREQ_SCALE_MHZ); | |
435 | devc->cur_samplerate = SR_MHZ(1); | |
436 | } | |
437 | ||
438 | if (devc->cur_threshold == 0) | |
439 | set_voltage_threshold(devc, 1.5); | |
440 | ||
441 | return SR_OK; | |
442 | } | |
443 | ||
444 | static int dev_close(struct sr_dev_inst *sdi) | |
445 | { | |
446 | struct sr_usb_dev_inst *usb; | |
447 | ||
448 | usb = sdi->conn; | |
449 | ||
450 | if (!usb->devhdl) | |
451 | return SR_ERR; | |
452 | ||
453 | sr_info("Closing device %d on %d.%d interface %d.", sdi->index, | |
454 | usb->bus, usb->address, USB_INTERFACE); | |
455 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
456 | libusb_reset_device(usb->devhdl); | |
457 | libusb_close(usb->devhdl); | |
458 | usb->devhdl = NULL; | |
459 | sdi->status = SR_ST_INACTIVE; | |
460 | ||
461 | return SR_OK; | |
462 | } | |
463 | ||
464 | static int cleanup(void) | |
465 | { | |
466 | return std_dev_clear(di, NULL); | |
467 | } | |
468 | ||
469 | static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi, | |
470 | const struct sr_channel_group *cg) | |
471 | { | |
472 | struct dev_context *devc; | |
473 | ||
474 | (void)cg; | |
475 | ||
476 | switch (id) { | |
477 | case SR_CONF_SAMPLERATE: | |
478 | if (sdi) { | |
479 | devc = sdi->priv; | |
480 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
481 | sr_spew("Returning samplerate: %" PRIu64 "Hz.", | |
482 | devc->cur_samplerate); | |
483 | } else | |
484 | return SR_ERR_ARG; | |
485 | break; | |
486 | case SR_CONF_CAPTURE_RATIO: | |
487 | if (sdi) { | |
488 | devc = sdi->priv; | |
489 | *data = g_variant_new_uint64(devc->capture_ratio); | |
490 | } else | |
491 | return SR_ERR_ARG; | |
492 | break; | |
493 | case SR_CONF_VOLTAGE_THRESHOLD: | |
494 | if (sdi) { | |
495 | GVariant *range[2]; | |
496 | devc = sdi->priv; | |
497 | range[0] = g_variant_new_double(devc->cur_threshold); | |
498 | range[1] = g_variant_new_double(devc->cur_threshold); | |
499 | *data = g_variant_new_tuple(range, 2); | |
500 | } else | |
501 | return SR_ERR_ARG; | |
502 | break; | |
503 | default: | |
504 | return SR_ERR_NA; | |
505 | } | |
506 | ||
507 | return SR_OK; | |
508 | } | |
509 | ||
510 | static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi, | |
511 | const struct sr_channel_group *cg) | |
512 | { | |
513 | struct dev_context *devc; | |
514 | gdouble low, high; | |
515 | ||
516 | (void)cg; | |
517 | ||
518 | if (sdi->status != SR_ST_ACTIVE) | |
519 | return SR_ERR_DEV_CLOSED; | |
520 | ||
521 | if (!(devc = sdi->priv)) { | |
522 | sr_err("%s: sdi->priv was NULL", __func__); | |
523 | return SR_ERR_ARG; | |
524 | } | |
525 | ||
526 | switch (id) { | |
527 | case SR_CONF_SAMPLERATE: | |
528 | return zp_set_samplerate(devc, g_variant_get_uint64(data)); | |
529 | case SR_CONF_LIMIT_SAMPLES: | |
530 | return set_limit_samples(devc, g_variant_get_uint64(data)); | |
531 | case SR_CONF_CAPTURE_RATIO: | |
532 | return set_capture_ratio(devc, g_variant_get_uint64(data)); | |
533 | case SR_CONF_VOLTAGE_THRESHOLD: | |
534 | g_variant_get(data, "(dd)", &low, &high); | |
535 | return set_voltage_threshold(devc, (low + high) / 2.0); | |
536 | default: | |
537 | return SR_ERR_NA; | |
538 | } | |
539 | ||
540 | return SR_OK; | |
541 | } | |
542 | ||
543 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
544 | const struct sr_channel_group *cg) | |
545 | { | |
546 | struct dev_context *devc; | |
547 | GVariant *gvar, *grange[2]; | |
548 | GVariantBuilder gvb; | |
549 | double v; | |
550 | GVariant *range[2]; | |
551 | ||
552 | (void)cg; | |
553 | ||
554 | switch (key) { | |
555 | case SR_CONF_DEVICE_OPTIONS: | |
556 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
557 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
558 | break; | |
559 | case SR_CONF_SAMPLERATE: | |
560 | devc = sdi->priv; | |
561 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
562 | if (devc->prof->max_sampling_freq == 100) { | |
563 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), | |
564 | samplerates_100, ARRAY_SIZE(samplerates_100), | |
565 | sizeof(uint64_t)); | |
566 | } else if (devc->prof->max_sampling_freq == 200) { | |
567 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), | |
568 | samplerates_200, ARRAY_SIZE(samplerates_200), | |
569 | sizeof(uint64_t)); | |
570 | } else { | |
571 | sr_err("Internal error: Unknown max. samplerate: %d.", | |
572 | devc->prof->max_sampling_freq); | |
573 | return SR_ERR_ARG; | |
574 | } | |
575 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); | |
576 | *data = g_variant_builder_end(&gvb); | |
577 | break; | |
578 | case SR_CONF_TRIGGER_TYPE: | |
579 | *data = g_variant_new_string(TRIGGER_TYPE); | |
580 | break; | |
581 | case SR_CONF_VOLTAGE_THRESHOLD: | |
582 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
583 | for (v = -6.0; v <= 6.0; v += 0.1) { | |
584 | range[0] = g_variant_new_double(v); | |
585 | range[1] = g_variant_new_double(v); | |
586 | gvar = g_variant_new_tuple(range, 2); | |
587 | g_variant_builder_add_value(&gvb, gvar); | |
588 | } | |
589 | *data = g_variant_builder_end(&gvb); | |
590 | break; | |
591 | case SR_CONF_LIMIT_SAMPLES: | |
592 | if (!sdi) | |
593 | return SR_ERR_ARG; | |
594 | devc = sdi->priv; | |
595 | grange[0] = g_variant_new_uint64(0); | |
596 | grange[1] = g_variant_new_uint64(devc->max_sample_depth); | |
597 | *data = g_variant_new_tuple(grange, 2); | |
598 | break; | |
599 | default: | |
600 | return SR_ERR_NA; | |
601 | } | |
602 | ||
603 | return SR_OK; | |
604 | } | |
605 | ||
606 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, | |
607 | void *cb_data) | |
608 | { | |
609 | struct dev_context *devc; | |
610 | struct sr_usb_dev_inst *usb; | |
611 | struct sr_datafeed_packet packet; | |
612 | struct sr_datafeed_logic logic; | |
613 | unsigned int samples_read; | |
614 | int res; | |
615 | unsigned int packet_num, n; | |
616 | unsigned char *buf; | |
617 | unsigned int status; | |
618 | unsigned int stop_address; | |
619 | unsigned int now_address; | |
620 | unsigned int trigger_address; | |
621 | unsigned int trigger_offset; | |
622 | unsigned int triggerbar; | |
623 | unsigned int ramsize_trigger; | |
624 | unsigned int memory_size; | |
625 | unsigned int valid_samples; | |
626 | unsigned int discard; | |
627 | int trigger_now; | |
628 | ||
629 | if (sdi->status != SR_ST_ACTIVE) | |
630 | return SR_ERR_DEV_CLOSED; | |
631 | ||
632 | if (!(devc = sdi->priv)) { | |
633 | sr_err("%s: sdi->priv was NULL", __func__); | |
634 | return SR_ERR_ARG; | |
635 | } | |
636 | ||
637 | if (configure_probes(sdi) != SR_OK) { | |
638 | sr_err("Failed to configure probes."); | |
639 | return SR_ERR; | |
640 | } | |
641 | ||
642 | usb = sdi->conn; | |
643 | ||
644 | set_triggerbar(devc); | |
645 | ||
646 | /* Push configured settings to device. */ | |
647 | analyzer_configure(usb->devhdl); | |
648 | ||
649 | analyzer_start(usb->devhdl); | |
650 | sr_info("Waiting for data."); | |
651 | analyzer_wait_data(usb->devhdl); | |
652 | ||
653 | status = analyzer_read_status(usb->devhdl); | |
654 | stop_address = analyzer_get_stop_address(usb->devhdl); | |
655 | now_address = analyzer_get_now_address(usb->devhdl); | |
656 | trigger_address = analyzer_get_trigger_address(usb->devhdl); | |
657 | ||
658 | triggerbar = analyzer_get_triggerbar_address(); | |
659 | ramsize_trigger = analyzer_get_ramsize_trigger_address(); | |
660 | ||
661 | n = get_memory_size(devc->memory_size); | |
662 | memory_size = n / 4; | |
663 | ||
664 | sr_info("Status = 0x%x.", status); | |
665 | sr_info("Stop address = 0x%x.", stop_address); | |
666 | sr_info("Now address = 0x%x.", now_address); | |
667 | sr_info("Trigger address = 0x%x.", trigger_address); | |
668 | sr_info("Triggerbar address = 0x%x.", triggerbar); | |
669 | sr_info("Ramsize trigger = 0x%x.", ramsize_trigger); | |
670 | sr_info("Memory size = 0x%x.", memory_size); | |
671 | ||
672 | /* Send header packet to the session bus. */ | |
673 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
674 | ||
675 | /* Check for empty capture */ | |
676 | if ((status & STATUS_READY) && !stop_address) { | |
677 | packet.type = SR_DF_END; | |
678 | sr_session_send(cb_data, &packet); | |
679 | return SR_OK; | |
680 | } | |
681 | ||
682 | if (!(buf = g_try_malloc(PACKET_SIZE))) { | |
683 | sr_err("Packet buffer malloc failed."); | |
684 | return SR_ERR_MALLOC; | |
685 | } | |
686 | ||
687 | /* Check if the trigger is in the samples we are throwing away */ | |
688 | trigger_now = now_address == trigger_address || | |
689 | ((now_address + 1) % memory_size) == trigger_address; | |
690 | ||
691 | /* | |
692 | * STATUS_READY doesn't clear until now_address advances past | |
693 | * addr 0, but for our logic, clear it in that case | |
694 | */ | |
695 | if (!now_address) | |
696 | status &= ~STATUS_READY; | |
697 | ||
698 | analyzer_read_start(usb->devhdl); | |
699 | ||
700 | /* Calculate how much data to discard */ | |
701 | discard = 0; | |
702 | if (status & STATUS_READY) { | |
703 | /* | |
704 | * We haven't wrapped around, we need to throw away data from | |
705 | * our current position to the end of the buffer. | |
706 | * Additionally, the first two samples captured are always | |
707 | * bogus. | |
708 | */ | |
709 | discard += memory_size - now_address + 2; | |
710 | now_address = 2; | |
711 | } | |
712 | ||
713 | /* If we have more samples than we need, discard them */ | |
714 | valid_samples = (stop_address - now_address) % memory_size; | |
715 | if (valid_samples > ramsize_trigger + triggerbar) { | |
716 | discard += valid_samples - (ramsize_trigger + triggerbar); | |
717 | now_address += valid_samples - (ramsize_trigger + triggerbar); | |
718 | } | |
719 | ||
720 | sr_info("Need to discard %d samples.", discard); | |
721 | ||
722 | /* Calculate how far in the trigger is */ | |
723 | if (trigger_now) | |
724 | trigger_offset = 0; | |
725 | else | |
726 | trigger_offset = (trigger_address - now_address) % memory_size; | |
727 | ||
728 | /* Recalculate the number of samples available */ | |
729 | valid_samples = (stop_address - now_address) % memory_size; | |
730 | ||
731 | /* Send the incoming transfer to the session bus. */ | |
732 | samples_read = 0; | |
733 | for (packet_num = 0; packet_num < n / PACKET_SIZE; packet_num++) { | |
734 | unsigned int len; | |
735 | unsigned int buf_offset; | |
736 | ||
737 | res = analyzer_read_data(usb->devhdl, buf, PACKET_SIZE); | |
738 | sr_info("Tried to read %d bytes, actually read %d bytes.", | |
739 | PACKET_SIZE, res); | |
740 | ||
741 | if (discard >= PACKET_SIZE / 4) { | |
742 | discard -= PACKET_SIZE / 4; | |
743 | continue; | |
744 | } | |
745 | ||
746 | len = PACKET_SIZE - discard * 4; | |
747 | buf_offset = discard * 4; | |
748 | discard = 0; | |
749 | ||
750 | /* Check if we've read all the samples */ | |
751 | if (samples_read + len / 4 >= valid_samples) | |
752 | len = (valid_samples - samples_read) * 4; | |
753 | if (!len) | |
754 | break; | |
755 | ||
756 | if (samples_read < trigger_offset && | |
757 | samples_read + len / 4 > trigger_offset) { | |
758 | /* Send out samples remaining before trigger */ | |
759 | packet.type = SR_DF_LOGIC; | |
760 | packet.payload = &logic; | |
761 | logic.length = (trigger_offset - samples_read) * 4; | |
762 | logic.unitsize = 4; | |
763 | logic.data = buf + buf_offset; | |
764 | sr_session_send(cb_data, &packet); | |
765 | len -= logic.length; | |
766 | samples_read += logic.length / 4; | |
767 | buf_offset += logic.length; | |
768 | } | |
769 | ||
770 | if (samples_read == trigger_offset) { | |
771 | /* Send out trigger */ | |
772 | packet.type = SR_DF_TRIGGER; | |
773 | packet.payload = NULL; | |
774 | sr_session_send(cb_data, &packet); | |
775 | } | |
776 | ||
777 | /* Send out data (or data after trigger) */ | |
778 | packet.type = SR_DF_LOGIC; | |
779 | packet.payload = &logic; | |
780 | logic.length = len; | |
781 | logic.unitsize = 4; | |
782 | logic.data = buf + buf_offset; | |
783 | sr_session_send(cb_data, &packet); | |
784 | samples_read += len / 4; | |
785 | } | |
786 | analyzer_read_stop(usb->devhdl); | |
787 | g_free(buf); | |
788 | ||
789 | packet.type = SR_DF_END; | |
790 | sr_session_send(cb_data, &packet); | |
791 | ||
792 | return SR_OK; | |
793 | } | |
794 | ||
795 | /* TODO: This stops acquisition on ALL devices, ignoring dev_index. */ | |
796 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
797 | { | |
798 | struct dev_context *devc; | |
799 | struct sr_usb_dev_inst *usb; | |
800 | struct sr_datafeed_packet packet; | |
801 | ||
802 | packet.type = SR_DF_END; | |
803 | sr_session_send(cb_data, &packet); | |
804 | ||
805 | if (!(devc = sdi->priv)) { | |
806 | sr_err("%s: sdi->priv was NULL", __func__); | |
807 | return SR_ERR_BUG; | |
808 | } | |
809 | ||
810 | usb = sdi->conn; | |
811 | analyzer_reset(usb->devhdl); | |
812 | /* TODO: Need to cancel and free any queued up transfers. */ | |
813 | ||
814 | return SR_OK; | |
815 | } | |
816 | ||
817 | SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info = { | |
818 | .name = "zeroplus-logic-cube", | |
819 | .longname = "ZEROPLUS Logic Cube LAP-C series", | |
820 | .api_version = 1, | |
821 | .init = init, | |
822 | .cleanup = cleanup, | |
823 | .scan = scan, | |
824 | .dev_list = dev_list, | |
825 | .dev_clear = NULL, | |
826 | .config_get = config_get, | |
827 | .config_set = config_set, | |
828 | .config_list = config_list, | |
829 | .dev_open = dev_open, | |
830 | .dev_close = dev_close, | |
831 | .dev_acquisition_start = dev_acquisition_start, | |
832 | .dev_acquisition_stop = dev_acquisition_stop, | |
833 | .priv = NULL, | |
834 | }; |