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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 <config.h> | |
21 | #include "protocol.h" | |
22 | ||
23 | #define VENDOR_NAME "ZEROPLUS" | |
24 | #define USB_INTERFACE 0 | |
25 | #define USB_CONFIGURATION 1 | |
26 | #define NUM_TRIGGER_STAGES 4 | |
27 | #define PACKET_SIZE 2048 /* ?? */ | |
28 | ||
29 | //#define ZP_EXPERIMENTAL | |
30 | ||
31 | struct zp_model { | |
32 | uint16_t vid; | |
33 | uint16_t pid; | |
34 | const 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 | {0x0c12, 0x7100, "AKIP-9101", 16, 256, 200}, | |
54 | ALL_ZERO | |
55 | }; | |
56 | ||
57 | static const uint32_t devopts[] = { | |
58 | SR_CONF_LOGIC_ANALYZER, | |
59 | SR_CONF_LIMIT_SAMPLES | SR_CONF_SET | SR_CONF_LIST, | |
60 | SR_CONF_SAMPLERATE | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
61 | SR_CONF_TRIGGER_MATCH | SR_CONF_LIST, | |
62 | SR_CONF_CAPTURE_RATIO | SR_CONF_GET | SR_CONF_SET, | |
63 | SR_CONF_VOLTAGE_THRESHOLD | SR_CONF_GET | SR_CONF_SET | SR_CONF_LIST, | |
64 | }; | |
65 | ||
66 | static const int32_t trigger_matches[] = { | |
67 | SR_TRIGGER_ZERO, | |
68 | SR_TRIGGER_ONE, | |
69 | }; | |
70 | ||
71 | /* | |
72 | * ZEROPLUS LAP-C (16032) numbers the 16 channels A0-A7 and B0-B7. | |
73 | * We currently ignore other untested/unsupported devices here. | |
74 | */ | |
75 | static const char *channel_names[] = { | |
76 | "A0", "A1", "A2", "A3", "A4", "A5", "A6", "A7", | |
77 | "B0", "B1", "B2", "B3", "B4", "B5", "B6", "B7", | |
78 | "C0", "C1", "C2", "C3", "C4", "C5", "C6", "C7", | |
79 | "D0", "D1", "D2", "D3", "D4", "D5", "D6", "D7", | |
80 | }; | |
81 | ||
82 | SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info; | |
83 | ||
84 | /* | |
85 | * The hardware supports more samplerates than these, but these are the | |
86 | * options hardcoded into the vendor's Windows GUI. | |
87 | */ | |
88 | ||
89 | static const uint64_t samplerates_100[] = { | |
90 | SR_HZ(100), | |
91 | SR_HZ(500), | |
92 | SR_KHZ(1), | |
93 | SR_KHZ(5), | |
94 | SR_KHZ(25), | |
95 | SR_KHZ(50), | |
96 | SR_KHZ(100), | |
97 | SR_KHZ(200), | |
98 | SR_KHZ(400), | |
99 | SR_KHZ(800), | |
100 | SR_MHZ(1), | |
101 | SR_MHZ(10), | |
102 | SR_MHZ(25), | |
103 | SR_MHZ(50), | |
104 | SR_MHZ(80), | |
105 | SR_MHZ(100), | |
106 | }; | |
107 | ||
108 | const uint64_t samplerates_200[] = { | |
109 | SR_HZ(100), | |
110 | SR_HZ(500), | |
111 | SR_KHZ(1), | |
112 | SR_KHZ(5), | |
113 | SR_KHZ(25), | |
114 | SR_KHZ(50), | |
115 | SR_KHZ(100), | |
116 | SR_KHZ(200), | |
117 | SR_KHZ(400), | |
118 | SR_KHZ(800), | |
119 | SR_MHZ(1), | |
120 | SR_MHZ(10), | |
121 | SR_MHZ(25), | |
122 | SR_MHZ(50), | |
123 | SR_MHZ(80), | |
124 | SR_MHZ(100), | |
125 | SR_MHZ(150), | |
126 | SR_MHZ(200), | |
127 | }; | |
128 | ||
129 | static int dev_close(struct sr_dev_inst *sdi); | |
130 | ||
131 | SR_PRIV int zp_set_samplerate(struct dev_context *devc, uint64_t samplerate) | |
132 | { | |
133 | int i; | |
134 | ||
135 | for (i = 0; ARRAY_SIZE(samplerates_200); i++) | |
136 | if (samplerate == samplerates_200[i]) | |
137 | break; | |
138 | ||
139 | if (i == ARRAY_SIZE(samplerates_200) || samplerate > devc->max_samplerate) { | |
140 | sr_err("Unsupported samplerate: %" PRIu64 "Hz.", samplerate); | |
141 | return SR_ERR_ARG; | |
142 | } | |
143 | ||
144 | sr_info("Setting samplerate to %" PRIu64 "Hz.", samplerate); | |
145 | ||
146 | if (samplerate >= SR_MHZ(1)) | |
147 | analyzer_set_freq(samplerate / SR_MHZ(1), FREQ_SCALE_MHZ); | |
148 | else if (samplerate >= SR_KHZ(1)) | |
149 | analyzer_set_freq(samplerate / SR_KHZ(1), FREQ_SCALE_KHZ); | |
150 | else | |
151 | analyzer_set_freq(samplerate, FREQ_SCALE_HZ); | |
152 | ||
153 | devc->cur_samplerate = samplerate; | |
154 | ||
155 | return SR_OK; | |
156 | } | |
157 | ||
158 | static int init(struct sr_dev_driver *di, struct sr_context *sr_ctx) | |
159 | { | |
160 | return std_init(sr_ctx, di, LOG_PREFIX); | |
161 | } | |
162 | ||
163 | static GSList *scan(struct sr_dev_driver *di, GSList *options) | |
164 | { | |
165 | struct sr_dev_inst *sdi; | |
166 | struct drv_context *drvc; | |
167 | struct dev_context *devc; | |
168 | const struct zp_model *prof; | |
169 | struct libusb_device_descriptor des; | |
170 | struct libusb_device_handle *hdl; | |
171 | libusb_device **devlist; | |
172 | GSList *devices; | |
173 | int ret, i, j; | |
174 | char serial_num[64], connection_id[64]; | |
175 | ||
176 | (void)options; | |
177 | ||
178 | drvc = di->context; | |
179 | ||
180 | devices = NULL; | |
181 | ||
182 | /* Find all ZEROPLUS analyzers and add them to device list. */ | |
183 | libusb_get_device_list(drvc->sr_ctx->libusb_ctx, &devlist); /* TODO: Errors. */ | |
184 | ||
185 | for (i = 0; devlist[i]; i++) { | |
186 | libusb_get_device_descriptor(devlist[i], &des); | |
187 | ||
188 | if ((ret = libusb_open(devlist[i], &hdl)) < 0) | |
189 | continue; | |
190 | ||
191 | if (des.iSerialNumber == 0) { | |
192 | serial_num[0] = '\0'; | |
193 | } else if ((ret = libusb_get_string_descriptor_ascii(hdl, | |
194 | des.iSerialNumber, (unsigned char *) serial_num, | |
195 | sizeof(serial_num))) < 0) { | |
196 | sr_warn("Failed to get serial number string descriptor: %s.", | |
197 | libusb_error_name(ret)); | |
198 | continue; | |
199 | } | |
200 | ||
201 | libusb_close(hdl); | |
202 | ||
203 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); | |
204 | ||
205 | prof = NULL; | |
206 | for (j = 0; j < zeroplus_models[j].vid; j++) { | |
207 | if (des.idVendor == zeroplus_models[j].vid && | |
208 | des.idProduct == zeroplus_models[j].pid) { | |
209 | prof = &zeroplus_models[j]; | |
210 | } | |
211 | } | |
212 | /* Skip if the device was not found. */ | |
213 | if (!prof) | |
214 | continue; | |
215 | sr_info("Found ZEROPLUS %s.", prof->model_name); | |
216 | ||
217 | /* Register the device with libsigrok. */ | |
218 | sdi = g_malloc0(sizeof(struct sr_dev_inst)); | |
219 | sdi->status = SR_ST_INACTIVE; | |
220 | sdi->vendor = g_strdup(VENDOR_NAME); | |
221 | sdi->model = g_strdup(prof->model_name); | |
222 | sdi->driver = di; | |
223 | sdi->serial_num = g_strdup(serial_num); | |
224 | sdi->connection_id = g_strdup(connection_id); | |
225 | ||
226 | /* Allocate memory for our private driver context. */ | |
227 | devc = g_malloc0(sizeof(struct dev_context)); | |
228 | sdi->priv = devc; | |
229 | devc->prof = prof; | |
230 | devc->num_channels = prof->channels; | |
231 | #ifdef ZP_EXPERIMENTAL | |
232 | devc->max_sample_depth = 128 * 1024; | |
233 | devc->max_samplerate = 200; | |
234 | #else | |
235 | devc->max_sample_depth = prof->sample_depth * 1024; | |
236 | devc->max_samplerate = prof->max_sampling_freq; | |
237 | #endif | |
238 | devc->max_samplerate *= SR_MHZ(1); | |
239 | devc->memory_size = MEMORY_SIZE_8K; | |
240 | // memset(devc->trigger_buffer, 0, NUM_TRIGGER_STAGES); | |
241 | ||
242 | /* Fill in channellist according to this device's profile. */ | |
243 | for (j = 0; j < devc->num_channels; j++) | |
244 | sr_channel_new(sdi, j, SR_CHANNEL_LOGIC, TRUE, | |
245 | channel_names[j]); | |
246 | ||
247 | devices = g_slist_append(devices, sdi); | |
248 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
249 | sdi->inst_type = SR_INST_USB; | |
250 | sdi->conn = sr_usb_dev_inst_new( | |
251 | libusb_get_bus_number(devlist[i]), | |
252 | libusb_get_device_address(devlist[i]), NULL); | |
253 | } | |
254 | libusb_free_device_list(devlist, 1); | |
255 | ||
256 | return devices; | |
257 | } | |
258 | ||
259 | static GSList *dev_list(const struct sr_dev_driver *di) | |
260 | { | |
261 | return ((struct drv_context *)(di->context))->instances; | |
262 | } | |
263 | ||
264 | static int dev_open(struct sr_dev_inst *sdi) | |
265 | { | |
266 | struct sr_dev_driver *di = sdi->driver; | |
267 | struct dev_context *devc; | |
268 | struct drv_context *drvc; | |
269 | struct sr_usb_dev_inst *usb; | |
270 | libusb_device **devlist, *dev; | |
271 | int device_count, ret, i; | |
272 | char connection_id[64]; | |
273 | ||
274 | drvc = di->context; | |
275 | usb = sdi->conn; | |
276 | ||
277 | if (!(devc = sdi->priv)) { | |
278 | sr_err("%s: sdi->priv was NULL", __func__); | |
279 | return SR_ERR_ARG; | |
280 | } | |
281 | ||
282 | device_count = libusb_get_device_list(drvc->sr_ctx->libusb_ctx, | |
283 | &devlist); | |
284 | if (device_count < 0) { | |
285 | sr_err("Failed to retrieve device list."); | |
286 | return SR_ERR; | |
287 | } | |
288 | ||
289 | dev = NULL; | |
290 | for (i = 0; i < device_count; i++) { | |
291 | usb_get_port_path(devlist[i], connection_id, sizeof(connection_id)); | |
292 | if (!strcmp(sdi->connection_id, connection_id)) { | |
293 | dev = devlist[i]; | |
294 | break; | |
295 | } | |
296 | } | |
297 | if (!dev) { | |
298 | sr_err("Device on %d.%d (logical) / %s (physical) disappeared!", | |
299 | usb->bus, usb->address, sdi->connection_id); | |
300 | return SR_ERR; | |
301 | } | |
302 | ||
303 | if (!(ret = libusb_open(dev, &(usb->devhdl)))) { | |
304 | sdi->status = SR_ST_ACTIVE; | |
305 | sr_info("Opened device on %d.%d (logical) / %s (physical) interface %d.", | |
306 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
307 | } else { | |
308 | sr_err("Failed to open device: %s.", libusb_error_name(ret)); | |
309 | return SR_ERR; | |
310 | } | |
311 | ||
312 | ret = libusb_set_configuration(usb->devhdl, USB_CONFIGURATION); | |
313 | if (ret < 0) { | |
314 | sr_err("Unable to set USB configuration %d: %s.", | |
315 | USB_CONFIGURATION, libusb_error_name(ret)); | |
316 | return SR_ERR; | |
317 | } | |
318 | ||
319 | ret = libusb_claim_interface(usb->devhdl, USB_INTERFACE); | |
320 | if (ret != 0) { | |
321 | sr_err("Unable to claim interface: %s.", | |
322 | libusb_error_name(ret)); | |
323 | return SR_ERR; | |
324 | } | |
325 | ||
326 | /* Set default configuration after power on. */ | |
327 | if (analyzer_read_status(usb->devhdl) == 0) | |
328 | analyzer_configure(usb->devhdl); | |
329 | ||
330 | analyzer_reset(usb->devhdl); | |
331 | analyzer_initialize(usb->devhdl); | |
332 | ||
333 | //analyzer_set_memory_size(MEMORY_SIZE_512K); | |
334 | // analyzer_set_freq(g_freq, g_freq_scale); | |
335 | analyzer_set_trigger_count(1); | |
336 | // analyzer_set_ramsize_trigger_address((((100 - g_pre_trigger) | |
337 | // * get_memory_size(g_memory_size)) / 100) >> 2); | |
338 | ||
339 | #if 0 | |
340 | if (g_double_mode == 1) | |
341 | analyzer_set_compression(COMPRESSION_DOUBLE); | |
342 | else if (g_compression == 1) | |
343 | analyzer_set_compression(COMPRESSION_ENABLE); | |
344 | else | |
345 | #endif | |
346 | analyzer_set_compression(COMPRESSION_NONE); | |
347 | ||
348 | if (devc->cur_samplerate == 0) { | |
349 | /* Samplerate hasn't been set. Default to 1MHz. */ | |
350 | analyzer_set_freq(1, FREQ_SCALE_MHZ); | |
351 | devc->cur_samplerate = SR_MHZ(1); | |
352 | } | |
353 | ||
354 | if (devc->cur_threshold == 0) | |
355 | set_voltage_threshold(devc, 1.5); | |
356 | ||
357 | return SR_OK; | |
358 | } | |
359 | ||
360 | static int dev_close(struct sr_dev_inst *sdi) | |
361 | { | |
362 | struct sr_usb_dev_inst *usb; | |
363 | ||
364 | usb = sdi->conn; | |
365 | ||
366 | if (!usb->devhdl) | |
367 | return SR_ERR; | |
368 | ||
369 | sr_info("Closing device on %d.%d (logical) / %s (physical) interface %d.", | |
370 | usb->bus, usb->address, sdi->connection_id, USB_INTERFACE); | |
371 | libusb_release_interface(usb->devhdl, USB_INTERFACE); | |
372 | libusb_reset_device(usb->devhdl); | |
373 | libusb_close(usb->devhdl); | |
374 | usb->devhdl = NULL; | |
375 | sdi->status = SR_ST_INACTIVE; | |
376 | ||
377 | return SR_OK; | |
378 | } | |
379 | ||
380 | static int cleanup(const struct sr_dev_driver *di) | |
381 | { | |
382 | return std_dev_clear(di, NULL); | |
383 | } | |
384 | ||
385 | static int config_get(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
386 | const struct sr_channel_group *cg) | |
387 | { | |
388 | struct dev_context *devc; | |
389 | GVariant *range[2]; | |
390 | ||
391 | (void)cg; | |
392 | ||
393 | if (!sdi) | |
394 | return SR_ERR_ARG; | |
395 | ||
396 | devc = sdi->priv; | |
397 | ||
398 | switch (key) { | |
399 | case SR_CONF_SAMPLERATE: | |
400 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
401 | break; | |
402 | case SR_CONF_CAPTURE_RATIO: | |
403 | *data = g_variant_new_uint64(devc->capture_ratio); | |
404 | break; | |
405 | case SR_CONF_VOLTAGE_THRESHOLD: | |
406 | range[0] = g_variant_new_double(devc->cur_threshold); | |
407 | range[1] = g_variant_new_double(devc->cur_threshold); | |
408 | *data = g_variant_new_tuple(range, 2); | |
409 | break; | |
410 | default: | |
411 | return SR_ERR_NA; | |
412 | } | |
413 | ||
414 | return SR_OK; | |
415 | } | |
416 | ||
417 | static int config_set(uint32_t key, GVariant *data, const struct sr_dev_inst *sdi, | |
418 | const struct sr_channel_group *cg) | |
419 | { | |
420 | struct dev_context *devc; | |
421 | gdouble low, high; | |
422 | ||
423 | (void)cg; | |
424 | ||
425 | if (sdi->status != SR_ST_ACTIVE) | |
426 | return SR_ERR_DEV_CLOSED; | |
427 | ||
428 | if (!(devc = sdi->priv)) { | |
429 | sr_err("%s: sdi->priv was NULL", __func__); | |
430 | return SR_ERR_ARG; | |
431 | } | |
432 | ||
433 | switch (key) { | |
434 | case SR_CONF_SAMPLERATE: | |
435 | return zp_set_samplerate(devc, g_variant_get_uint64(data)); | |
436 | case SR_CONF_LIMIT_SAMPLES: | |
437 | return set_limit_samples(devc, g_variant_get_uint64(data)); | |
438 | case SR_CONF_CAPTURE_RATIO: | |
439 | return set_capture_ratio(devc, g_variant_get_uint64(data)); | |
440 | case SR_CONF_VOLTAGE_THRESHOLD: | |
441 | g_variant_get(data, "(dd)", &low, &high); | |
442 | return set_voltage_threshold(devc, (low + high) / 2.0); | |
443 | default: | |
444 | return SR_ERR_NA; | |
445 | } | |
446 | ||
447 | return SR_OK; | |
448 | } | |
449 | ||
450 | static int config_list(uint32_t key, GVariant **data, const struct sr_dev_inst *sdi, | |
451 | const struct sr_channel_group *cg) | |
452 | { | |
453 | struct dev_context *devc; | |
454 | GVariant *gvar, *grange[2]; | |
455 | GVariantBuilder gvb; | |
456 | double v; | |
457 | GVariant *range[2]; | |
458 | ||
459 | (void)cg; | |
460 | ||
461 | switch (key) { | |
462 | case SR_CONF_DEVICE_OPTIONS: | |
463 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_UINT32, | |
464 | devopts, ARRAY_SIZE(devopts), sizeof(uint32_t)); | |
465 | break; | |
466 | case SR_CONF_SAMPLERATE: | |
467 | devc = sdi->priv; | |
468 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
469 | if (devc->prof->max_sampling_freq == 100) { | |
470 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), | |
471 | samplerates_100, ARRAY_SIZE(samplerates_100), | |
472 | sizeof(uint64_t)); | |
473 | } else if (devc->prof->max_sampling_freq == 200) { | |
474 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), | |
475 | samplerates_200, ARRAY_SIZE(samplerates_200), | |
476 | sizeof(uint64_t)); | |
477 | } else { | |
478 | sr_err("Internal error: Unknown max. samplerate: %d.", | |
479 | devc->prof->max_sampling_freq); | |
480 | return SR_ERR_ARG; | |
481 | } | |
482 | g_variant_builder_add(&gvb, "{sv}", "samplerates", gvar); | |
483 | *data = g_variant_builder_end(&gvb); | |
484 | break; | |
485 | case SR_CONF_TRIGGER_MATCH: | |
486 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
487 | trigger_matches, ARRAY_SIZE(trigger_matches), | |
488 | sizeof(int32_t)); | |
489 | break; | |
490 | case SR_CONF_VOLTAGE_THRESHOLD: | |
491 | g_variant_builder_init(&gvb, G_VARIANT_TYPE_ARRAY); | |
492 | for (v = -6.0; v <= 6.0; v += 0.1) { | |
493 | range[0] = g_variant_new_double(v); | |
494 | range[1] = g_variant_new_double(v); | |
495 | gvar = g_variant_new_tuple(range, 2); | |
496 | g_variant_builder_add_value(&gvb, gvar); | |
497 | } | |
498 | *data = g_variant_builder_end(&gvb); | |
499 | break; | |
500 | case SR_CONF_LIMIT_SAMPLES: | |
501 | if (!sdi) | |
502 | return SR_ERR_ARG; | |
503 | devc = sdi->priv; | |
504 | grange[0] = g_variant_new_uint64(0); | |
505 | grange[1] = g_variant_new_uint64(devc->max_sample_depth); | |
506 | *data = g_variant_new_tuple(grange, 2); | |
507 | break; | |
508 | default: | |
509 | return SR_ERR_NA; | |
510 | } | |
511 | ||
512 | return SR_OK; | |
513 | } | |
514 | ||
515 | static int dev_acquisition_start(const struct sr_dev_inst *sdi) | |
516 | { | |
517 | struct dev_context *devc; | |
518 | struct sr_usb_dev_inst *usb; | |
519 | struct sr_datafeed_packet packet; | |
520 | struct sr_datafeed_logic logic; | |
521 | unsigned int samples_read; | |
522 | int res; | |
523 | unsigned int packet_num, n; | |
524 | unsigned char *buf; | |
525 | unsigned int status; | |
526 | unsigned int stop_address; | |
527 | unsigned int now_address; | |
528 | unsigned int trigger_address; | |
529 | unsigned int trigger_offset; | |
530 | unsigned int triggerbar; | |
531 | unsigned int ramsize_trigger; | |
532 | unsigned int memory_size; | |
533 | unsigned int valid_samples; | |
534 | unsigned int discard; | |
535 | int trigger_now; | |
536 | ||
537 | if (sdi->status != SR_ST_ACTIVE) | |
538 | return SR_ERR_DEV_CLOSED; | |
539 | ||
540 | devc = sdi->priv; | |
541 | ||
542 | if (analyzer_add_triggers(sdi) != SR_OK) { | |
543 | sr_err("Failed to configure triggers."); | |
544 | return SR_ERR; | |
545 | } | |
546 | ||
547 | usb = sdi->conn; | |
548 | ||
549 | set_triggerbar(devc); | |
550 | ||
551 | /* Push configured settings to device. */ | |
552 | analyzer_configure(usb->devhdl); | |
553 | ||
554 | analyzer_start(usb->devhdl); | |
555 | sr_info("Waiting for data."); | |
556 | analyzer_wait_data(usb->devhdl); | |
557 | ||
558 | status = analyzer_read_status(usb->devhdl); | |
559 | stop_address = analyzer_get_stop_address(usb->devhdl); | |
560 | now_address = analyzer_get_now_address(usb->devhdl); | |
561 | trigger_address = analyzer_get_trigger_address(usb->devhdl); | |
562 | ||
563 | triggerbar = analyzer_get_triggerbar_address(); | |
564 | ramsize_trigger = analyzer_get_ramsize_trigger_address(); | |
565 | ||
566 | n = get_memory_size(devc->memory_size); | |
567 | memory_size = n / 4; | |
568 | ||
569 | sr_info("Status = 0x%x.", status); | |
570 | sr_info("Stop address = 0x%x.", stop_address); | |
571 | sr_info("Now address = 0x%x.", now_address); | |
572 | sr_info("Trigger address = 0x%x.", trigger_address); | |
573 | sr_info("Triggerbar address = 0x%x.", triggerbar); | |
574 | sr_info("Ramsize trigger = 0x%x.", ramsize_trigger); | |
575 | sr_info("Memory size = 0x%x.", memory_size); | |
576 | ||
577 | std_session_send_df_header(sdi, LOG_PREFIX); | |
578 | ||
579 | /* Check for empty capture */ | |
580 | if ((status & STATUS_READY) && !stop_address) { | |
581 | std_session_send_df_end(sdi, LOG_PREFIX); | |
582 | return SR_OK; | |
583 | } | |
584 | ||
585 | buf = g_malloc(PACKET_SIZE); | |
586 | ||
587 | /* Check if the trigger is in the samples we are throwing away */ | |
588 | trigger_now = now_address == trigger_address || | |
589 | ((now_address + 1) % memory_size) == trigger_address; | |
590 | ||
591 | /* | |
592 | * STATUS_READY doesn't clear until now_address advances past | |
593 | * addr 0, but for our logic, clear it in that case | |
594 | */ | |
595 | if (!now_address) | |
596 | status &= ~STATUS_READY; | |
597 | ||
598 | analyzer_read_start(usb->devhdl); | |
599 | ||
600 | /* Calculate how much data to discard */ | |
601 | discard = 0; | |
602 | if (status & STATUS_READY) { | |
603 | /* | |
604 | * We haven't wrapped around, we need to throw away data from | |
605 | * our current position to the end of the buffer. | |
606 | * Additionally, the first two samples captured are always | |
607 | * bogus. | |
608 | */ | |
609 | discard += memory_size - now_address + 2; | |
610 | now_address = 2; | |
611 | } | |
612 | ||
613 | /* If we have more samples than we need, discard them */ | |
614 | valid_samples = (stop_address - now_address) % memory_size; | |
615 | if (valid_samples > ramsize_trigger + triggerbar) { | |
616 | discard += valid_samples - (ramsize_trigger + triggerbar); | |
617 | now_address += valid_samples - (ramsize_trigger + triggerbar); | |
618 | } | |
619 | ||
620 | sr_info("Need to discard %d samples.", discard); | |
621 | ||
622 | /* Calculate how far in the trigger is */ | |
623 | if (trigger_now) | |
624 | trigger_offset = 0; | |
625 | else | |
626 | trigger_offset = (trigger_address - now_address) % memory_size; | |
627 | ||
628 | /* Recalculate the number of samples available */ | |
629 | valid_samples = (stop_address - now_address) % memory_size; | |
630 | ||
631 | /* Send the incoming transfer to the session bus. */ | |
632 | samples_read = 0; | |
633 | for (packet_num = 0; packet_num < n / PACKET_SIZE; packet_num++) { | |
634 | unsigned int len; | |
635 | unsigned int buf_offset; | |
636 | ||
637 | res = analyzer_read_data(usb->devhdl, buf, PACKET_SIZE); | |
638 | sr_info("Tried to read %d bytes, actually read %d bytes.", | |
639 | PACKET_SIZE, res); | |
640 | ||
641 | if (discard >= PACKET_SIZE / 4) { | |
642 | discard -= PACKET_SIZE / 4; | |
643 | continue; | |
644 | } | |
645 | ||
646 | len = PACKET_SIZE - discard * 4; | |
647 | buf_offset = discard * 4; | |
648 | discard = 0; | |
649 | ||
650 | /* Check if we've read all the samples */ | |
651 | if (samples_read + len / 4 >= valid_samples) | |
652 | len = (valid_samples - samples_read) * 4; | |
653 | if (!len) | |
654 | break; | |
655 | ||
656 | if (samples_read < trigger_offset && | |
657 | samples_read + len / 4 > trigger_offset) { | |
658 | /* Send out samples remaining before trigger */ | |
659 | packet.type = SR_DF_LOGIC; | |
660 | packet.payload = &logic; | |
661 | logic.length = (trigger_offset - samples_read) * 4; | |
662 | logic.unitsize = 4; | |
663 | logic.data = buf + buf_offset; | |
664 | sr_session_send(sdi, &packet); | |
665 | len -= logic.length; | |
666 | samples_read += logic.length / 4; | |
667 | buf_offset += logic.length; | |
668 | } | |
669 | ||
670 | if (samples_read == trigger_offset) { | |
671 | /* Send out trigger */ | |
672 | packet.type = SR_DF_TRIGGER; | |
673 | packet.payload = NULL; | |
674 | sr_session_send(sdi, &packet); | |
675 | } | |
676 | ||
677 | /* Send out data (or data after trigger) */ | |
678 | packet.type = SR_DF_LOGIC; | |
679 | packet.payload = &logic; | |
680 | logic.length = len; | |
681 | logic.unitsize = 4; | |
682 | logic.data = buf + buf_offset; | |
683 | sr_session_send(sdi, &packet); | |
684 | samples_read += len / 4; | |
685 | } | |
686 | analyzer_read_stop(usb->devhdl); | |
687 | g_free(buf); | |
688 | ||
689 | std_session_send_df_end(sdi, LOG_PREFIX); | |
690 | ||
691 | return SR_OK; | |
692 | } | |
693 | ||
694 | /* TODO: This stops acquisition on ALL devices, ignoring dev_index. */ | |
695 | static int dev_acquisition_stop(struct sr_dev_inst *sdi) | |
696 | { | |
697 | struct sr_usb_dev_inst *usb; | |
698 | ||
699 | std_session_send_df_end(sdi, LOG_PREFIX); | |
700 | ||
701 | usb = sdi->conn; | |
702 | analyzer_reset(usb->devhdl); | |
703 | /* TODO: Need to cancel and free any queued up transfers. */ | |
704 | ||
705 | return SR_OK; | |
706 | } | |
707 | ||
708 | SR_PRIV struct sr_dev_driver zeroplus_logic_cube_driver_info = { | |
709 | .name = "zeroplus-logic-cube", | |
710 | .longname = "ZEROPLUS Logic Cube LAP-C series", | |
711 | .api_version = 1, | |
712 | .init = init, | |
713 | .cleanup = cleanup, | |
714 | .scan = scan, | |
715 | .dev_list = dev_list, | |
716 | .dev_clear = NULL, | |
717 | .config_get = config_get, | |
718 | .config_set = config_set, | |
719 | .config_list = config_list, | |
720 | .dev_open = dev_open, | |
721 | .dev_close = dev_close, | |
722 | .dev_acquisition_start = dev_acquisition_start, | |
723 | .dev_acquisition_stop = dev_acquisition_stop, | |
724 | .context = NULL, | |
725 | }; |