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4bd80e12 | 1 | /* |
2 | * This file is part of the libsigrok project. | |
3 | * | |
4 | * Copyright (C) 2013 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 USB_VENDOR_ID 0x0403 | |
23 | #define USB_DEVICE_ID 0x6010 | |
24 | #define USB_VENDOR_NAME "Saanlima" | |
25 | #define USB_IPRODUCT "Pipistrello LX45" | |
26 | ||
27 | static const int32_t hwcaps[] = { | |
28 | SR_CONF_LOGIC_ANALYZER, | |
29 | SR_CONF_SAMPLERATE, | |
30 | SR_CONF_TRIGGER_TYPE, | |
31 | SR_CONF_CAPTURE_RATIO, | |
32 | SR_CONF_LIMIT_SAMPLES, | |
33 | SR_CONF_PATTERN_MODE, | |
34 | SR_CONF_EXTERNAL_CLOCK, | |
35 | SR_CONF_SWAP, | |
36 | SR_CONF_RLE, | |
37 | }; | |
38 | ||
39 | #define STR_PATTERN_NONE "None" | |
40 | #define STR_PATTERN_EXTERNAL "External" | |
41 | #define STR_PATTERN_INTERNAL "Internal" | |
42 | ||
43 | /* Supported methods of test pattern outputs */ | |
44 | enum { | |
45 | /** | |
46 | * Capture pins 31:16 (unbuffered wing) output a test pattern | |
47 | * that can captured on pins 0:15. | |
48 | */ | |
49 | PATTERN_EXTERNAL, | |
50 | ||
51 | /** Route test pattern internally to capture buffer. */ | |
52 | PATTERN_INTERNAL, | |
53 | }; | |
54 | ||
55 | static const char *patterns[] = { | |
56 | STR_PATTERN_NONE, | |
57 | STR_PATTERN_EXTERNAL, | |
58 | STR_PATTERN_INTERNAL, | |
59 | }; | |
60 | ||
61 | /* Channels are numbered 0-31 (on the PCB silkscreen). */ | |
62 | SR_PRIV const char *p_ols_channel_names[NUM_CHANNELS + 1] = { | |
63 | "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", | |
64 | "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", | |
65 | "24", "25", "26", "27", "28", "29", "30", "31", | |
66 | NULL, | |
67 | }; | |
68 | ||
69 | /* Default supported samplerates, can be overridden by device metadata. */ | |
70 | static const uint64_t samplerates[] = { | |
71 | SR_HZ(10), | |
72 | SR_MHZ(200), | |
73 | SR_HZ(1), | |
74 | }; | |
75 | ||
76 | SR_PRIV struct sr_dev_driver p_ols_driver_info; | |
77 | static struct sr_dev_driver *di = &p_ols_driver_info; | |
78 | ||
79 | static int init(struct sr_context *sr_ctx) | |
80 | { | |
81 | return std_init(sr_ctx, di, LOG_PREFIX); | |
82 | } | |
83 | ||
84 | static GSList *scan(GSList *options) | |
85 | { | |
86 | struct sr_dev_inst *sdi; | |
87 | struct drv_context *drvc; | |
88 | struct dev_context *devc; | |
89 | GSList *devices; | |
90 | int ret, i; | |
91 | char buf[70]; | |
92 | int bytes_read; | |
93 | ||
94 | (void)options; | |
95 | ||
96 | drvc = di->priv; | |
97 | ||
98 | devices = NULL; | |
99 | ||
100 | /* Allocate memory for our private device context. */ | |
101 | if (!(devc = g_try_malloc0(sizeof(struct dev_context)))) { | |
102 | sr_err("Device context malloc failed."); | |
103 | goto err_free_nothing; | |
104 | } | |
105 | ||
106 | /* Device-specific settings */ | |
107 | devc->max_samples = devc->max_samplerate = devc->protocol_version = 0; | |
108 | ||
109 | /* Acquisition settings */ | |
110 | devc->limit_samples = devc->capture_ratio = 0; | |
111 | devc->trigger_at = -1; | |
112 | devc->channel_mask = 0xffffffff; | |
113 | devc->flag_reg = 0; | |
114 | ||
115 | /* Allocate memory for the incoming ftdi data. */ | |
116 | if (!(devc->ftdi_buf = g_try_malloc0(FTDI_BUF_SIZE))) { | |
117 | sr_err("ftdi_buf malloc failed."); | |
118 | goto err_free_devc; | |
119 | } | |
120 | ||
121 | /* Allocate memory for the FTDI context (ftdic) and initialize it. */ | |
122 | if (!(devc->ftdic = ftdi_new())) { | |
123 | sr_err("Failed to initialize libftdi."); | |
124 | goto err_free_ftdi_buf;; | |
125 | } | |
126 | ||
127 | /* Try to open the FTDI device */ | |
128 | if (p_ols_open(devc) != SR_OK) { | |
129 | goto err_free_ftdic; | |
130 | } | |
131 | ||
132 | /* The discovery procedure is like this: first send the Reset | |
133 | * command (0x00) 5 times, since the device could be anywhere | |
134 | * in a 5-byte command. Then send the ID command (0x02). | |
135 | * If the device responds with 4 bytes ("OLS1" or "SLA1"), we | |
136 | * have a match. | |
137 | */ | |
138 | ||
139 | ret = SR_OK; | |
140 | for (i = 0; i < 5; i++) { | |
141 | if ((ret = write_shortcommand(devc, CMD_RESET)) != SR_OK) { | |
142 | break; | |
143 | } | |
144 | } | |
145 | if (ret != SR_OK) { | |
146 | sr_err("Could not reset device. Quitting."); | |
147 | goto err_close_ftdic; | |
148 | } | |
149 | write_shortcommand(devc, CMD_ID); | |
150 | ||
151 | /* Read the response data. */ | |
152 | bytes_read = ftdi_read_data(devc->ftdic, (uint8_t *)buf, 4); | |
153 | if (bytes_read < 0) { | |
154 | sr_err("Failed to read FTDI data (%d): %s.", | |
155 | bytes_read, ftdi_get_error_string(devc->ftdic)); | |
156 | goto err_close_ftdic; | |
157 | } | |
158 | if (bytes_read == 0) { | |
159 | goto err_close_ftdic; | |
160 | } | |
161 | ||
162 | if (strncmp(buf, "1SLO", 4) && strncmp(buf, "1ALS", 4)) | |
163 | goto err_close_ftdic; | |
164 | ||
165 | /* Definitely using the OLS protocol, check if it supports | |
166 | * the metadata command. | |
167 | */ | |
168 | write_shortcommand(devc, CMD_METADATA); | |
169 | ||
170 | /* Read the metadata. */ | |
171 | bytes_read = ftdi_read_data(devc->ftdic, (uint8_t *)buf, 64); | |
172 | if (bytes_read < 0) { | |
173 | sr_err("Failed to read FTDI data (%d): %s.", | |
174 | bytes_read, ftdi_get_error_string(devc->ftdic)); | |
175 | goto err_close_ftdic; | |
176 | } | |
177 | if (bytes_read == 0) { | |
178 | goto err_close_ftdic; | |
179 | } | |
180 | ||
181 | /* Close device. We'll reopen it again when we need it. */ | |
182 | p_ols_close(devc); | |
183 | ||
184 | /* Parse the metadata. */ | |
185 | sdi = p_ols_get_metadata((uint8_t *)buf, bytes_read, devc); | |
186 | sdi->index = 0; | |
187 | ||
188 | /* Configure samplerate and divider. */ | |
189 | if (p_ols_set_samplerate(sdi, DEFAULT_SAMPLERATE) != SR_OK) | |
190 | sr_dbg("Failed to set default samplerate (%"PRIu64").", | |
191 | DEFAULT_SAMPLERATE); | |
192 | /* Clear trigger masks, values and stages. */ | |
193 | p_ols_configure_channels(sdi); | |
194 | ||
195 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
196 | devices = g_slist_append(devices, sdi); | |
197 | ||
198 | return devices; | |
199 | ||
200 | err_close_ftdic: | |
201 | p_ols_close(devc); | |
202 | err_free_ftdic: | |
203 | ftdi_free(devc->ftdic); /* NOT free() or g_free()! */ | |
204 | err_free_ftdi_buf: | |
205 | g_free(devc->ftdi_buf); | |
206 | err_free_devc: | |
207 | g_free(devc); | |
208 | err_free_nothing: | |
209 | ||
210 | return NULL; | |
211 | } | |
212 | ||
213 | static GSList *dev_list(void) | |
214 | { | |
215 | return ((struct drv_context *)(di->priv))->instances; | |
216 | } | |
217 | ||
218 | static void clear_helper(void *priv) | |
219 | { | |
220 | struct dev_context *devc; | |
221 | ||
222 | devc = priv; | |
223 | ||
224 | ftdi_free(devc->ftdic); | |
225 | g_free(devc->ftdi_buf); | |
226 | } | |
227 | ||
228 | static int dev_clear(void) | |
229 | { | |
230 | return std_dev_clear(di, clear_helper); | |
231 | } | |
232 | ||
233 | static int cleanup(void) | |
234 | { | |
235 | return dev_clear(); | |
236 | } | |
237 | ||
238 | ||
239 | static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi, | |
240 | const struct sr_channel_group *cg) | |
241 | { | |
242 | struct dev_context *devc; | |
243 | ||
244 | (void)cg; | |
245 | ||
246 | if (!sdi) | |
247 | return SR_ERR_ARG; | |
248 | ||
249 | devc = sdi->priv; | |
250 | switch (id) { | |
251 | case SR_CONF_SAMPLERATE: | |
252 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
253 | break; | |
254 | case SR_CONF_CAPTURE_RATIO: | |
255 | *data = g_variant_new_uint64(devc->capture_ratio); | |
256 | break; | |
257 | case SR_CONF_LIMIT_SAMPLES: | |
258 | *data = g_variant_new_uint64(devc->limit_samples); | |
259 | break; | |
260 | case SR_CONF_PATTERN_MODE: | |
261 | if (devc->flag_reg & FLAG_EXTERNAL_TEST_MODE) | |
262 | *data = g_variant_new_string(STR_PATTERN_EXTERNAL); | |
263 | else if (devc->flag_reg & FLAG_INTERNAL_TEST_MODE) | |
264 | *data = g_variant_new_string(STR_PATTERN_INTERNAL); | |
265 | else | |
266 | *data = g_variant_new_string(STR_PATTERN_NONE); | |
267 | break; | |
268 | case SR_CONF_RLE: | |
269 | *data = g_variant_new_boolean(devc->flag_reg & FLAG_RLE ? TRUE : FALSE); | |
270 | break; | |
271 | case SR_CONF_EXTERNAL_CLOCK: | |
272 | *data = g_variant_new_boolean(devc->flag_reg & FLAG_CLOCK_EXTERNAL ? TRUE : FALSE); | |
273 | break; | |
274 | default: | |
275 | return SR_ERR_NA; | |
276 | } | |
277 | ||
278 | return SR_OK; | |
279 | } | |
280 | ||
281 | static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi, | |
282 | const struct sr_channel_group *cg) | |
283 | { | |
284 | struct dev_context *devc; | |
285 | uint16_t flag; | |
286 | uint64_t tmp_u64; | |
287 | int ret; | |
288 | const char *stropt; | |
289 | ||
290 | (void)cg; | |
291 | ||
292 | if (sdi->status != SR_ST_ACTIVE) | |
293 | return SR_ERR_DEV_CLOSED; | |
294 | ||
295 | devc = sdi->priv; | |
296 | ||
297 | switch (id) { | |
298 | case SR_CONF_SAMPLERATE: | |
299 | tmp_u64 = g_variant_get_uint64(data); | |
300 | if (tmp_u64 < samplerates[0] || tmp_u64 > samplerates[1]) | |
301 | return SR_ERR_SAMPLERATE; | |
302 | ret = p_ols_set_samplerate(sdi, g_variant_get_uint64(data)); | |
303 | break; | |
304 | case SR_CONF_LIMIT_SAMPLES: | |
305 | tmp_u64 = g_variant_get_uint64(data); | |
306 | if (tmp_u64 < MIN_NUM_SAMPLES) | |
307 | return SR_ERR; | |
308 | devc->limit_samples = tmp_u64; | |
309 | ret = SR_OK; | |
310 | break; | |
311 | case SR_CONF_CAPTURE_RATIO: | |
312 | devc->capture_ratio = g_variant_get_uint64(data); | |
313 | if (devc->capture_ratio < 0 || devc->capture_ratio > 100) { | |
314 | devc->capture_ratio = 0; | |
315 | ret = SR_ERR; | |
316 | } else | |
317 | ret = SR_OK; | |
318 | break; | |
319 | case SR_CONF_EXTERNAL_CLOCK: | |
320 | if (g_variant_get_boolean(data)) { | |
321 | sr_info("Enabling external clock."); | |
322 | devc->flag_reg |= FLAG_CLOCK_EXTERNAL; | |
323 | } else { | |
324 | sr_info("Disabled external clock."); | |
325 | devc->flag_reg &= ~FLAG_CLOCK_EXTERNAL; | |
326 | } | |
327 | ret = SR_OK; | |
328 | break; | |
329 | case SR_CONF_PATTERN_MODE: | |
330 | stropt = g_variant_get_string(data, NULL); | |
331 | ret = SR_OK; | |
332 | flag = 0xffff; | |
333 | if (!strcmp(stropt, STR_PATTERN_NONE)) { | |
334 | sr_info("Disabling test modes."); | |
335 | flag = 0x0000; | |
336 | }else if (!strcmp(stropt, STR_PATTERN_INTERNAL)) { | |
337 | sr_info("Enabling internal test mode."); | |
338 | flag = FLAG_INTERNAL_TEST_MODE; | |
339 | } else if (!strcmp(stropt, STR_PATTERN_EXTERNAL)) { | |
340 | sr_info("Enabling external test mode."); | |
341 | flag = FLAG_EXTERNAL_TEST_MODE; | |
342 | } else { | |
343 | ret = SR_ERR; | |
344 | } | |
345 | if (flag != 0xffff) { | |
346 | devc->flag_reg &= ~(FLAG_INTERNAL_TEST_MODE | FLAG_EXTERNAL_TEST_MODE); | |
347 | devc->flag_reg |= flag; | |
348 | } | |
349 | break; | |
350 | case SR_CONF_SWAP: | |
351 | if (g_variant_get_boolean(data)) { | |
352 | sr_info("Enabling channel swapping."); | |
353 | devc->flag_reg |= FLAG_SWAP_CHANNELS; | |
354 | } else { | |
355 | sr_info("Disabling channel swapping."); | |
356 | devc->flag_reg &= ~FLAG_SWAP_CHANNELS; | |
357 | } | |
358 | ret = SR_OK; | |
359 | break; | |
360 | ||
361 | case SR_CONF_RLE: | |
362 | if (g_variant_get_boolean(data)) { | |
363 | sr_info("Enabling RLE."); | |
364 | devc->flag_reg |= FLAG_RLE; | |
365 | } else { | |
366 | sr_info("Disabling RLE."); | |
367 | devc->flag_reg &= ~FLAG_RLE; | |
368 | } | |
369 | ret = SR_OK; | |
370 | break; | |
371 | default: | |
372 | ret = SR_ERR_NA; | |
373 | } | |
374 | ||
375 | return ret; | |
376 | } | |
377 | ||
378 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
379 | const struct sr_channel_group *cg) | |
380 | { | |
381 | struct dev_context *devc; | |
382 | GVariant *gvar, *grange[2]; | |
383 | GVariantBuilder gvb; | |
384 | int num_channels, i; | |
385 | ||
386 | (void)cg; | |
387 | ||
388 | switch (key) { | |
389 | case SR_CONF_DEVICE_OPTIONS: | |
390 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
391 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
392 | break; | |
393 | case SR_CONF_SAMPLERATE: | |
394 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
395 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates, | |
396 | ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
397 | g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar); | |
398 | *data = g_variant_builder_end(&gvb); | |
399 | break; | |
400 | case SR_CONF_TRIGGER_TYPE: | |
401 | *data = g_variant_new_string(TRIGGER_TYPE); | |
402 | break; | |
403 | case SR_CONF_PATTERN_MODE: | |
404 | *data = g_variant_new_strv(patterns, ARRAY_SIZE(patterns)); | |
405 | break; | |
406 | case SR_CONF_LIMIT_SAMPLES: | |
407 | if (!sdi) | |
408 | return SR_ERR_ARG; | |
409 | devc = sdi->priv; | |
410 | if (devc->flag_reg & FLAG_RLE) | |
411 | return SR_ERR_NA; | |
412 | if (devc->max_samples == 0) | |
413 | /* Device didn't specify sample memory size in metadata. */ | |
414 | return SR_ERR_NA; | |
415 | /* | |
416 | * Channel groups are turned off if no channels in that group are | |
417 | * enabled, making more room for samples for the enabled group. | |
418 | */ | |
419 | p_ols_configure_channels(sdi); | |
420 | num_channels = 0; | |
421 | for (i = 0; i < 4; i++) { | |
422 | if (devc->channel_mask & (0xff << (i * 8))) | |
423 | num_channels++; | |
424 | } | |
425 | if (num_channels == 0) { | |
426 | /* This can happen, but shouldn't cause too much drama. | |
427 | * However we can't continue because the code below would | |
428 | * divide by zero. */ | |
429 | break; | |
430 | } | |
431 | grange[0] = g_variant_new_uint64(MIN_NUM_SAMPLES); | |
432 | grange[1] = g_variant_new_uint64(devc->max_samples / num_channels); | |
433 | *data = g_variant_new_tuple(grange, 2); | |
434 | break; | |
435 | default: | |
436 | return SR_ERR_NA; | |
437 | } | |
438 | ||
439 | return SR_OK; | |
440 | } | |
441 | ||
442 | static int dev_open(struct sr_dev_inst *sdi) | |
443 | { | |
444 | struct dev_context *devc; | |
445 | int ret; | |
446 | ||
447 | devc = sdi->priv; | |
448 | ||
449 | if (p_ols_open(devc) != SR_OK) { | |
450 | return SR_ERR; | |
451 | } else { | |
452 | sdi->status = SR_ST_ACTIVE; | |
453 | return SR_OK; | |
454 | } | |
455 | } | |
456 | ||
457 | static int dev_close(struct sr_dev_inst *sdi) | |
458 | { | |
459 | int ret; | |
460 | struct dev_context *devc; | |
461 | ||
462 | ret = SR_OK; | |
463 | devc = sdi->priv; | |
464 | ||
465 | if (sdi->status == SR_ST_ACTIVE) { | |
466 | sr_dbg("Status ACTIVE, closing device."); | |
467 | ret = p_ols_close(devc); | |
468 | } else { | |
469 | sr_spew("Status not ACTIVE, nothing to do."); | |
470 | } | |
471 | ||
472 | sdi->status = SR_ST_INACTIVE; | |
473 | ||
474 | return ret; | |
475 | } | |
476 | ||
477 | ||
478 | static int set_trigger(const struct sr_dev_inst *sdi, int stage) | |
479 | { | |
480 | struct dev_context *devc; | |
481 | uint8_t cmd, arg[4]; | |
482 | ||
483 | devc = sdi->priv; | |
484 | ||
485 | cmd = CMD_SET_TRIGGER_MASK + stage * 4; | |
486 | arg[0] = devc->trigger_mask[stage] & 0xff; | |
487 | arg[1] = (devc->trigger_mask[stage] >> 8) & 0xff; | |
488 | arg[2] = (devc->trigger_mask[stage] >> 16) & 0xff; | |
489 | arg[3] = (devc->trigger_mask[stage] >> 24) & 0xff; | |
490 | if (write_longcommand(devc, cmd, arg) != SR_OK) | |
491 | return SR_ERR; | |
492 | ||
493 | cmd = CMD_SET_TRIGGER_VALUE + stage * 4; | |
494 | arg[0] = devc->trigger_value[stage] & 0xff; | |
495 | arg[1] = (devc->trigger_value[stage] >> 8) & 0xff; | |
496 | arg[2] = (devc->trigger_value[stage] >> 16) & 0xff; | |
497 | arg[3] = (devc->trigger_value[stage] >> 24) & 0xff; | |
498 | if (write_longcommand(devc, cmd, arg) != SR_OK) | |
499 | return SR_ERR; | |
500 | ||
501 | cmd = CMD_SET_TRIGGER_CONFIG + stage * 4; | |
502 | arg[0] = arg[1] = arg[3] = 0x00; | |
503 | arg[2] = stage; | |
504 | if (stage == devc->num_stages) | |
505 | /* Last stage, fire when this one matches. */ | |
506 | arg[3] |= TRIGGER_START; | |
507 | if (write_longcommand(devc, cmd, arg) != SR_OK) | |
508 | return SR_ERR; | |
509 | ||
510 | return SR_OK; | |
511 | } | |
512 | ||
513 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, | |
514 | void *cb_data) | |
515 | { | |
516 | struct dev_context *devc; | |
517 | uint32_t samplecount, readcount, delaycount; | |
518 | uint8_t changrp_mask, arg[4]; | |
519 | int num_channels; | |
520 | int ret, i; | |
521 | ||
522 | if (sdi->status != SR_ST_ACTIVE) | |
523 | return SR_ERR_DEV_CLOSED; | |
524 | ||
525 | devc = sdi->priv; | |
526 | ||
527 | if (p_ols_configure_channels(sdi) != SR_OK) { | |
528 | sr_err("Failed to configure channels."); | |
529 | return SR_ERR; | |
530 | } | |
531 | ||
532 | /* | |
533 | * Enable/disable channel groups in the flag register according to the | |
534 | * channel mask. Calculate this here, because num_channels is needed | |
535 | * to limit readcount. | |
536 | */ | |
537 | changrp_mask = 0; | |
538 | num_channels = 0; | |
539 | for (i = 0; i < 4; i++) { | |
540 | if (devc->channel_mask & (0xff << (i * 8))) { | |
541 | changrp_mask |= (1 << i); | |
542 | num_channels++; | |
543 | } | |
544 | } | |
545 | ||
546 | /* | |
547 | * Limit readcount to prevent reading past the end of the hardware | |
548 | * buffer. | |
549 | */ | |
550 | sr_dbg("max_samples = %d", devc->max_samples); | |
551 | sr_dbg("limit_samples = %d", devc->limit_samples); | |
552 | samplecount = MIN(devc->max_samples / num_channels, devc->limit_samples); | |
553 | readcount = samplecount / 4; | |
554 | sr_dbg("Samplecount = %d", samplecount); | |
555 | ||
556 | /* Rather read too many samples than too few. */ | |
557 | if (samplecount % 4 != 0) | |
558 | readcount++; | |
559 | ||
560 | /* Basic triggers. */ | |
561 | if (devc->trigger_mask[0] != 0x00000000) { | |
562 | /* At least one channel has a trigger on it. */ | |
563 | delaycount = readcount * (1 - devc->capture_ratio / 100.0); | |
564 | devc->trigger_at = (readcount - delaycount) * 4 - devc->num_stages; | |
565 | for (i = 0; i <= devc->num_stages; i++) { | |
566 | sr_dbg("Setting stage %d trigger.", i); | |
567 | if ((ret = set_trigger(sdi, i)) != SR_OK) | |
568 | return ret; | |
569 | } | |
570 | } else { | |
571 | /* No triggers configured, force trigger on first stage. */ | |
572 | sr_dbg("Forcing trigger at stage 0."); | |
573 | if ((ret = set_trigger(sdi, 0)) != SR_OK) | |
574 | return ret; | |
575 | delaycount = readcount; | |
576 | } | |
577 | ||
578 | /* Samplerate. */ | |
579 | sr_dbg("Setting samplerate to %" PRIu64 "Hz (divider %u)", | |
580 | devc->cur_samplerate, devc->cur_samplerate_divider); | |
581 | arg[0] = devc->cur_samplerate_divider & 0xff; | |
582 | arg[1] = (devc->cur_samplerate_divider & 0xff00) >> 8; | |
583 | arg[2] = (devc->cur_samplerate_divider & 0xff0000) >> 16; | |
584 | arg[3] = 0x00; | |
585 | if (write_longcommand(devc, CMD_SET_DIVIDER, arg) != SR_OK) | |
586 | return SR_ERR; | |
587 | /* Send extended sample limit and pre/post-trigger capture ratio. */ | |
588 | arg[0] = ((readcount - 1) & 0xff); | |
589 | arg[1] = ((readcount - 1) & 0xff00) >> 8; | |
590 | arg[2] = ((readcount - 1) & 0xff0000) >> 16; | |
591 | arg[3] = ((readcount - 1) & 0xff000000) >> 24; | |
592 | if (write_longcommand(devc, CMD_CAPTURE_COUNT, arg) != SR_OK) | |
593 | return SR_ERR; | |
594 | arg[0] = ((delaycount - 1) & 0xff); | |
595 | arg[1] = ((delaycount - 1) & 0xff00) >> 8; | |
596 | arg[2] = ((delaycount - 1) & 0xff0000) >> 16; | |
597 | arg[3] = ((delaycount - 1) & 0xff000000) >> 24; | |
598 | if (write_longcommand(devc, CMD_CAPTURE_DELAY, arg) != SR_OK) | |
599 | return SR_ERR; | |
600 | /* Flag register. */ | |
601 | sr_dbg("Setting intpat %s, extpat %s, RLE %s, noise_filter %s, demux %s", | |
602 | devc->flag_reg & FLAG_INTERNAL_TEST_MODE ? "on": "off", | |
603 | devc->flag_reg & FLAG_EXTERNAL_TEST_MODE ? "on": "off", | |
604 | devc->flag_reg & FLAG_RLE ? "on" : "off", | |
605 | devc->flag_reg & FLAG_FILTER ? "on": "off", | |
606 | devc->flag_reg & FLAG_DEMUX ? "on" : "off"); | |
607 | ||
608 | /* 1 means "disable channel". */ | |
609 | devc->flag_reg |= ~(changrp_mask << 2) & 0x3c; | |
610 | arg[0] = devc->flag_reg & 0xff; | |
611 | arg[1] = devc->flag_reg >> 8; | |
612 | arg[2] = arg[3] = 0x00; | |
613 | if (write_longcommand(devc, CMD_SET_FLAGS, arg) != SR_OK) | |
614 | return SR_ERR; | |
615 | ||
616 | /* Start acquisition on the device. */ | |
617 | if (write_shortcommand(devc, CMD_RUN) != SR_OK) | |
618 | return SR_ERR; | |
619 | ||
620 | /* Reset all operational states. */ | |
621 | devc->rle_count = devc->num_transfers = 0; | |
622 | devc->num_samples = devc->num_bytes = 0; | |
623 | devc->cnt_bytes = devc->cnt_samples = devc->cnt_samples_rle = 0; | |
624 | memset(devc->sample, 0, 4); | |
625 | ||
626 | /* Send header packet to the session bus. */ | |
627 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
628 | ||
629 | /* Hook up a dummy handler to receive data from the device. */ | |
630 | sr_source_add(-1, G_IO_IN, 0, p_ols_receive_data, (void *)sdi); | |
631 | ||
632 | return SR_OK; | |
633 | } | |
634 | ||
635 | ||
636 | ||
637 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
638 | { | |
639 | struct dev_context *devc; | |
640 | struct sr_datafeed_packet packet; | |
641 | ||
642 | devc = sdi->priv; | |
643 | ||
644 | sr_dbg("Stopping acquisition."); | |
645 | write_shortcommand(devc, CMD_RESET); | |
646 | write_shortcommand(devc, CMD_RESET); | |
647 | write_shortcommand(devc, CMD_RESET); | |
648 | write_shortcommand(devc, CMD_RESET); | |
649 | write_shortcommand(devc, CMD_RESET); | |
650 | ||
651 | sr_source_remove(-1); | |
652 | ||
653 | /* Send end packet to the session bus. */ | |
654 | sr_dbg("Sending SR_DF_END."); | |
655 | packet.type = SR_DF_END; | |
656 | sr_session_send(cb_data, &packet); | |
657 | ||
658 | return SR_OK; | |
659 | } | |
660 | ||
661 | SR_PRIV struct sr_dev_driver p_ols_driver_info = { | |
662 | .name = "p_ols", | |
663 | .longname = "Pipistrello OLS", | |
664 | .api_version = 1, | |
665 | .init = init, | |
666 | .cleanup = cleanup, | |
667 | .scan = scan, | |
668 | .dev_list = dev_list, | |
669 | .dev_clear = dev_clear, | |
670 | .config_get = config_get, | |
671 | .config_set = config_set, | |
672 | .config_list = config_list, | |
673 | .dev_open = dev_open, | |
674 | .dev_close = dev_close, | |
675 | .dev_acquisition_start = dev_acquisition_start, | |
676 | .dev_acquisition_stop = dev_acquisition_stop, | |
677 | .priv = NULL, | |
678 | }; |