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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 | #include <libserialport.h> | |
22 | ||
23 | #define SERIALCOMM "115200/8n1" | |
24 | ||
25 | static const int32_t hwopts[] = { | |
26 | SR_CONF_CONN, | |
27 | SR_CONF_SERIALCOMM, | |
28 | }; | |
29 | ||
30 | static const int32_t hwcaps[] = { | |
31 | SR_CONF_LOGIC_ANALYZER, | |
32 | SR_CONF_SAMPLERATE, | |
33 | SR_CONF_TRIGGER_TYPE, | |
34 | SR_CONF_CAPTURE_RATIO, | |
35 | SR_CONF_LIMIT_SAMPLES, | |
36 | SR_CONF_EXTERNAL_CLOCK, | |
37 | SR_CONF_PATTERN_MODE, | |
38 | SR_CONF_SWAP, | |
39 | SR_CONF_RLE, | |
40 | }; | |
41 | ||
42 | #define STR_PATTERN_NONE "None" | |
43 | #define STR_PATTERN_EXTERNAL "External" | |
44 | #define STR_PATTERN_INTERNAL "Internal" | |
45 | ||
46 | /* Supported methods of test pattern outputs */ | |
47 | enum { | |
48 | /** | |
49 | * Capture pins 31:16 (unbuffered wing) output a test pattern | |
50 | * that can captured on pins 0:15. | |
51 | */ | |
52 | PATTERN_EXTERNAL, | |
53 | ||
54 | /** Route test pattern internally to capture buffer. */ | |
55 | PATTERN_INTERNAL, | |
56 | }; | |
57 | ||
58 | static const char *patterns[] = { | |
59 | STR_PATTERN_NONE, | |
60 | STR_PATTERN_EXTERNAL, | |
61 | STR_PATTERN_INTERNAL, | |
62 | }; | |
63 | ||
64 | /* Channels are numbered 0-31 (on the PCB silkscreen). */ | |
65 | SR_PRIV const char *ols_channel_names[NUM_PROBES + 1] = { | |
66 | "0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "10", "11", "12", | |
67 | "13", "14", "15", "16", "17", "18", "19", "20", "21", "22", "23", | |
68 | "24", "25", "26", "27", "28", "29", "30", "31", | |
69 | NULL, | |
70 | }; | |
71 | ||
72 | /* Default supported samplerates, can be overridden by device metadata. */ | |
73 | static const uint64_t samplerates[] = { | |
74 | SR_HZ(10), | |
75 | SR_MHZ(200), | |
76 | SR_HZ(1), | |
77 | }; | |
78 | ||
79 | SR_PRIV struct sr_dev_driver ols_driver_info; | |
80 | static struct sr_dev_driver *di = &ols_driver_info; | |
81 | ||
82 | static int init(struct sr_context *sr_ctx) | |
83 | { | |
84 | return std_init(sr_ctx, di, LOG_PREFIX); | |
85 | } | |
86 | ||
87 | static GSList *scan(GSList *options) | |
88 | { | |
89 | struct sr_config *src; | |
90 | struct sr_dev_inst *sdi; | |
91 | struct drv_context *drvc; | |
92 | struct dev_context *devc; | |
93 | struct sr_channel *ch; | |
94 | struct sr_serial_dev_inst *serial; | |
95 | GPollFD probefd; | |
96 | GSList *l, *devices; | |
97 | int ret, i; | |
98 | const char *conn, *serialcomm; | |
99 | char buf[8]; | |
100 | ||
101 | drvc = di->priv; | |
102 | ||
103 | devices = NULL; | |
104 | ||
105 | conn = serialcomm = NULL; | |
106 | for (l = options; l; l = l->next) { | |
107 | src = l->data; | |
108 | switch (src->key) { | |
109 | case SR_CONF_CONN: | |
110 | conn = g_variant_get_string(src->data, NULL); | |
111 | break; | |
112 | case SR_CONF_SERIALCOMM: | |
113 | serialcomm = g_variant_get_string(src->data, NULL); | |
114 | break; | |
115 | } | |
116 | } | |
117 | if (!conn) | |
118 | return NULL; | |
119 | ||
120 | if (serialcomm == NULL) | |
121 | serialcomm = SERIALCOMM; | |
122 | ||
123 | if (!(serial = sr_serial_dev_inst_new(conn, serialcomm))) | |
124 | return NULL; | |
125 | ||
126 | /* The discovery procedure is like this: first send the Reset | |
127 | * command (0x00) 5 times, since the device could be anywhere | |
128 | * in a 5-byte command. Then send the ID command (0x02). | |
129 | * If the device responds with 4 bytes ("OLS1" or "SLA1"), we | |
130 | * have a match. | |
131 | */ | |
132 | sr_info("Probing %s.", conn); | |
133 | if (serial_open(serial, SERIAL_RDWR | SERIAL_NONBLOCK) != SR_OK) | |
134 | return NULL; | |
135 | ||
136 | ret = SR_OK; | |
137 | for (i = 0; i < 5; i++) { | |
138 | if ((ret = send_shortcommand(serial, CMD_RESET)) != SR_OK) { | |
139 | sr_err("Port %s is not writable.", conn); | |
140 | break; | |
141 | } | |
142 | } | |
143 | if (ret != SR_OK) { | |
144 | serial_close(serial); | |
145 | sr_err("Could not use port %s. Quitting.", conn); | |
146 | return NULL; | |
147 | } | |
148 | send_shortcommand(serial, CMD_ID); | |
149 | ||
150 | /* Wait 10ms for a response. */ | |
151 | g_usleep(10000); | |
152 | ||
153 | sp_get_port_handle(serial->data, &probefd.fd); | |
154 | probefd.events = G_IO_IN; | |
155 | g_poll(&probefd, 1, 1); | |
156 | ||
157 | if (probefd.revents != G_IO_IN) | |
158 | return NULL; | |
159 | if (serial_read_blocking(serial, buf, 4) != 4) | |
160 | return NULL; | |
161 | if (strncmp(buf, "1SLO", 4) && strncmp(buf, "1ALS", 4)) | |
162 | return NULL; | |
163 | ||
164 | /* Definitely using the OLS protocol, check if it supports | |
165 | * the metadata command. | |
166 | */ | |
167 | send_shortcommand(serial, CMD_METADATA); | |
168 | if (g_poll(&probefd, 1, 10) > 0) { | |
169 | /* Got metadata. */ | |
170 | sdi = get_metadata(serial); | |
171 | sdi->index = 0; | |
172 | devc = sdi->priv; | |
173 | } else { | |
174 | /* Not an OLS -- some other board that uses the sump protocol. */ | |
175 | sr_info("Device does not support metadata."); | |
176 | sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, | |
177 | "Sump", "Logic Analyzer", "v1.0"); | |
178 | sdi->driver = di; | |
179 | for (i = 0; i < 32; i++) { | |
180 | if (!(ch = sr_probe_new(i, SR_PROBE_LOGIC, TRUE, | |
181 | ols_channel_names[i]))) | |
182 | return 0; | |
183 | sdi->channels = g_slist_append(sdi->channels, ch); | |
184 | } | |
185 | devc = ols_dev_new(); | |
186 | sdi->priv = devc; | |
187 | } | |
188 | /* Configure samplerate and divider. */ | |
189 | if (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 | ols_configure_channels(sdi); | |
194 | sdi->inst_type = SR_INST_SERIAL; | |
195 | sdi->conn = serial; | |
196 | ||
197 | drvc->instances = g_slist_append(drvc->instances, sdi); | |
198 | devices = g_slist_append(devices, sdi); | |
199 | ||
200 | serial_close(serial); | |
201 | ||
202 | return devices; | |
203 | } | |
204 | ||
205 | static GSList *dev_list(void) | |
206 | { | |
207 | return ((struct drv_context *)(di->priv))->instances; | |
208 | } | |
209 | ||
210 | static int cleanup(void) | |
211 | { | |
212 | return std_dev_clear(di, NULL); | |
213 | } | |
214 | ||
215 | static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi, | |
216 | const struct sr_channel_group *cg) | |
217 | { | |
218 | struct dev_context *devc; | |
219 | ||
220 | (void)cg; | |
221 | ||
222 | if (!sdi) | |
223 | return SR_ERR_ARG; | |
224 | ||
225 | devc = sdi->priv; | |
226 | switch (id) { | |
227 | case SR_CONF_SAMPLERATE: | |
228 | *data = g_variant_new_uint64(devc->cur_samplerate); | |
229 | break; | |
230 | case SR_CONF_CAPTURE_RATIO: | |
231 | *data = g_variant_new_uint64(devc->capture_ratio); | |
232 | break; | |
233 | case SR_CONF_LIMIT_SAMPLES: | |
234 | *data = g_variant_new_uint64(devc->limit_samples); | |
235 | break; | |
236 | case SR_CONF_PATTERN_MODE: | |
237 | if (devc->flag_reg & FLAG_EXTERNAL_TEST_MODE) | |
238 | *data = g_variant_new_string(STR_PATTERN_EXTERNAL); | |
239 | else if (devc->flag_reg & FLAG_INTERNAL_TEST_MODE) | |
240 | *data = g_variant_new_string(STR_PATTERN_INTERNAL); | |
241 | else | |
242 | *data = g_variant_new_string(STR_PATTERN_NONE); | |
243 | break; | |
244 | case SR_CONF_RLE: | |
245 | *data = g_variant_new_boolean(devc->flag_reg & FLAG_RLE ? TRUE : FALSE); | |
246 | break; | |
247 | default: | |
248 | return SR_ERR_NA; | |
249 | } | |
250 | ||
251 | return SR_OK; | |
252 | } | |
253 | ||
254 | static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi, | |
255 | const struct sr_channel_group *cg) | |
256 | { | |
257 | struct dev_context *devc; | |
258 | uint16_t flag; | |
259 | uint64_t tmp_u64; | |
260 | int ret; | |
261 | const char *stropt; | |
262 | ||
263 | (void)cg; | |
264 | ||
265 | if (sdi->status != SR_ST_ACTIVE) | |
266 | return SR_ERR_DEV_CLOSED; | |
267 | ||
268 | devc = sdi->priv; | |
269 | ||
270 | switch (id) { | |
271 | case SR_CONF_SAMPLERATE: | |
272 | tmp_u64 = g_variant_get_uint64(data); | |
273 | if (tmp_u64 < samplerates[0] || tmp_u64 > samplerates[1]) | |
274 | return SR_ERR_SAMPLERATE; | |
275 | ret = ols_set_samplerate(sdi, g_variant_get_uint64(data)); | |
276 | break; | |
277 | case SR_CONF_LIMIT_SAMPLES: | |
278 | tmp_u64 = g_variant_get_uint64(data); | |
279 | if (tmp_u64 < MIN_NUM_SAMPLES) | |
280 | return SR_ERR; | |
281 | devc->limit_samples = tmp_u64; | |
282 | ret = SR_OK; | |
283 | break; | |
284 | case SR_CONF_CAPTURE_RATIO: | |
285 | devc->capture_ratio = g_variant_get_uint64(data); | |
286 | if (devc->capture_ratio < 0 || devc->capture_ratio > 100) { | |
287 | devc->capture_ratio = 0; | |
288 | ret = SR_ERR; | |
289 | } else | |
290 | ret = SR_OK; | |
291 | break; | |
292 | case SR_CONF_EXTERNAL_CLOCK: | |
293 | if (g_variant_get_boolean(data)) { | |
294 | sr_info("Enabling external clock."); | |
295 | devc->flag_reg |= FLAG_CLOCK_EXTERNAL; | |
296 | } else { | |
297 | sr_info("Disabled external clock."); | |
298 | devc->flag_reg &= ~FLAG_CLOCK_EXTERNAL; | |
299 | } | |
300 | ret = SR_OK; | |
301 | break; | |
302 | case SR_CONF_PATTERN_MODE: | |
303 | stropt = g_variant_get_string(data, NULL); | |
304 | ret = SR_OK; | |
305 | flag = 0xffff; | |
306 | if (!strcmp(stropt, STR_PATTERN_NONE)) { | |
307 | sr_info("Disabling test modes."); | |
308 | flag = 0x0000; | |
309 | }else if (!strcmp(stropt, STR_PATTERN_INTERNAL)) { | |
310 | sr_info("Enabling internal test mode."); | |
311 | flag = FLAG_INTERNAL_TEST_MODE; | |
312 | } else if (!strcmp(stropt, STR_PATTERN_EXTERNAL)) { | |
313 | sr_info("Enabling external test mode."); | |
314 | flag = FLAG_EXTERNAL_TEST_MODE; | |
315 | } else { | |
316 | ret = SR_ERR; | |
317 | } | |
318 | if (flag != 0xffff) { | |
319 | devc->flag_reg &= ~(FLAG_INTERNAL_TEST_MODE | FLAG_EXTERNAL_TEST_MODE); | |
320 | devc->flag_reg |= flag; | |
321 | } | |
322 | break; | |
323 | case SR_CONF_SWAP: | |
324 | if (g_variant_get_boolean(data)) { | |
325 | sr_info("Enabling channel swapping."); | |
326 | devc->flag_reg |= FLAG_SWAP_PROBES; | |
327 | } else { | |
328 | sr_info("Disabling channel swapping."); | |
329 | devc->flag_reg &= ~FLAG_SWAP_PROBES; | |
330 | } | |
331 | ret = SR_OK; | |
332 | break; | |
333 | ||
334 | case SR_CONF_RLE: | |
335 | if (g_variant_get_boolean(data)) { | |
336 | sr_info("Enabling RLE."); | |
337 | devc->flag_reg |= FLAG_RLE; | |
338 | } else { | |
339 | sr_info("Disabling RLE."); | |
340 | devc->flag_reg &= ~FLAG_RLE; | |
341 | } | |
342 | ret = SR_OK; | |
343 | break; | |
344 | default: | |
345 | ret = SR_ERR_NA; | |
346 | } | |
347 | ||
348 | return ret; | |
349 | } | |
350 | ||
351 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, | |
352 | const struct sr_channel_group *cg) | |
353 | { | |
354 | struct dev_context *devc; | |
355 | GVariant *gvar, *grange[2]; | |
356 | GVariantBuilder gvb; | |
357 | int num_channels, i; | |
358 | ||
359 | (void)cg; | |
360 | ||
361 | switch (key) { | |
362 | case SR_CONF_SCAN_OPTIONS: | |
363 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
364 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
365 | break; | |
366 | case SR_CONF_DEVICE_OPTIONS: | |
367 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, | |
368 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
369 | break; | |
370 | case SR_CONF_SAMPLERATE: | |
371 | g_variant_builder_init(&gvb, G_VARIANT_TYPE("a{sv}")); | |
372 | gvar = g_variant_new_fixed_array(G_VARIANT_TYPE("t"), samplerates, | |
373 | ARRAY_SIZE(samplerates), sizeof(uint64_t)); | |
374 | g_variant_builder_add(&gvb, "{sv}", "samplerate-steps", gvar); | |
375 | *data = g_variant_builder_end(&gvb); | |
376 | break; | |
377 | case SR_CONF_TRIGGER_TYPE: | |
378 | *data = g_variant_new_string(TRIGGER_TYPE); | |
379 | break; | |
380 | case SR_CONF_PATTERN_MODE: | |
381 | *data = g_variant_new_strv(patterns, ARRAY_SIZE(patterns)); | |
382 | break; | |
383 | case SR_CONF_LIMIT_SAMPLES: | |
384 | if (!sdi) | |
385 | return SR_ERR_ARG; | |
386 | devc = sdi->priv; | |
387 | if (devc->flag_reg & FLAG_RLE) | |
388 | return SR_ERR_NA; | |
389 | if (devc->max_samples == 0) | |
390 | /* Device didn't specify sample memory size in metadata. */ | |
391 | return SR_ERR_NA; | |
392 | /* | |
393 | * Channel groups are turned off if no channels in that group are | |
394 | * enabled, making more room for samples for the enabled group. | |
395 | */ | |
396 | ols_configure_channels(sdi); | |
397 | num_channels = 0; | |
398 | for (i = 0; i < 4; i++) { | |
399 | if (devc->channel_mask & (0xff << (i * 8))) | |
400 | num_channels++; | |
401 | } | |
402 | grange[0] = g_variant_new_uint64(MIN_NUM_SAMPLES); | |
403 | grange[1] = g_variant_new_uint64(devc->max_samples / num_channels); | |
404 | *data = g_variant_new_tuple(grange, 2); | |
405 | break; | |
406 | default: | |
407 | return SR_ERR_NA; | |
408 | } | |
409 | ||
410 | return SR_OK; | |
411 | } | |
412 | ||
413 | static int set_trigger(const struct sr_dev_inst *sdi, int stage) | |
414 | { | |
415 | struct dev_context *devc; | |
416 | struct sr_serial_dev_inst *serial; | |
417 | uint8_t cmd, arg[4]; | |
418 | ||
419 | devc = sdi->priv; | |
420 | serial = sdi->conn; | |
421 | ||
422 | cmd = CMD_SET_TRIGGER_MASK + stage * 4; | |
423 | arg[0] = devc->trigger_mask[stage] & 0xff; | |
424 | arg[1] = (devc->trigger_mask[stage] >> 8) & 0xff; | |
425 | arg[2] = (devc->trigger_mask[stage] >> 16) & 0xff; | |
426 | arg[3] = (devc->trigger_mask[stage] >> 24) & 0xff; | |
427 | if (send_longcommand(serial, cmd, arg) != SR_OK) | |
428 | return SR_ERR; | |
429 | ||
430 | cmd = CMD_SET_TRIGGER_VALUE + stage * 4; | |
431 | arg[0] = devc->trigger_value[stage] & 0xff; | |
432 | arg[1] = (devc->trigger_value[stage] >> 8) & 0xff; | |
433 | arg[2] = (devc->trigger_value[stage] >> 16) & 0xff; | |
434 | arg[3] = (devc->trigger_value[stage] >> 24) & 0xff; | |
435 | if (send_longcommand(serial, cmd, arg) != SR_OK) | |
436 | return SR_ERR; | |
437 | ||
438 | cmd = CMD_SET_TRIGGER_CONFIG + stage * 4; | |
439 | arg[0] = arg[1] = arg[3] = 0x00; | |
440 | arg[2] = stage; | |
441 | if (stage == devc->num_stages) | |
442 | /* Last stage, fire when this one matches. */ | |
443 | arg[3] |= TRIGGER_START; | |
444 | if (send_longcommand(serial, cmd, arg) != SR_OK) | |
445 | return SR_ERR; | |
446 | ||
447 | return SR_OK; | |
448 | } | |
449 | ||
450 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, | |
451 | void *cb_data) | |
452 | { | |
453 | struct dev_context *devc; | |
454 | struct sr_serial_dev_inst *serial; | |
455 | uint16_t samplecount, readcount, delaycount; | |
456 | uint8_t changrp_mask, arg[4]; | |
457 | int num_channels; | |
458 | int ret, i; | |
459 | ||
460 | if (sdi->status != SR_ST_ACTIVE) | |
461 | return SR_ERR_DEV_CLOSED; | |
462 | ||
463 | devc = sdi->priv; | |
464 | serial = sdi->conn; | |
465 | ||
466 | if (ols_configure_channels(sdi) != SR_OK) { | |
467 | sr_err("Failed to configure channels."); | |
468 | return SR_ERR; | |
469 | } | |
470 | ||
471 | /* | |
472 | * Enable/disable channel groups in the flag register according to the | |
473 | * channel mask. Calculate this here, because num_channels is needed | |
474 | * to limit readcount. | |
475 | */ | |
476 | changrp_mask = 0; | |
477 | num_channels = 0; | |
478 | for (i = 0; i < 4; i++) { | |
479 | if (devc->channel_mask & (0xff << (i * 8))) { | |
480 | changrp_mask |= (1 << i); | |
481 | num_channels++; | |
482 | } | |
483 | } | |
484 | ||
485 | /* | |
486 | * Limit readcount to prevent reading past the end of the hardware | |
487 | * buffer. | |
488 | */ | |
489 | samplecount = MIN(devc->max_samples / num_channels, devc->limit_samples); | |
490 | readcount = samplecount / 4; | |
491 | ||
492 | /* Rather read too many samples than too few. */ | |
493 | if (samplecount % 4 != 0) | |
494 | readcount++; | |
495 | ||
496 | /* Basic triggers. */ | |
497 | if (devc->trigger_mask[0] != 0x00000000) { | |
498 | /* At least one channel has a trigger on it. */ | |
499 | delaycount = readcount * (1 - devc->capture_ratio / 100.0); | |
500 | devc->trigger_at = (readcount - delaycount) * 4 - devc->num_stages; | |
501 | for (i = 0; i <= devc->num_stages; i++) { | |
502 | sr_dbg("Setting stage %d trigger.", i); | |
503 | if ((ret = set_trigger(sdi, i)) != SR_OK) | |
504 | return ret; | |
505 | } | |
506 | } else { | |
507 | /* No triggers configured, force trigger on first stage. */ | |
508 | sr_dbg("Forcing trigger at stage 0."); | |
509 | if ((ret = set_trigger(sdi, 0)) != SR_OK) | |
510 | return ret; | |
511 | delaycount = readcount; | |
512 | } | |
513 | ||
514 | /* Samplerate. */ | |
515 | sr_dbg("Setting samplerate to %" PRIu64 "Hz (divider %u)", | |
516 | devc->cur_samplerate, devc->cur_samplerate_divider); | |
517 | arg[0] = devc->cur_samplerate_divider & 0xff; | |
518 | arg[1] = (devc->cur_samplerate_divider & 0xff00) >> 8; | |
519 | arg[2] = (devc->cur_samplerate_divider & 0xff0000) >> 16; | |
520 | arg[3] = 0x00; | |
521 | if (send_longcommand(serial, CMD_SET_DIVIDER, arg) != SR_OK) | |
522 | return SR_ERR; | |
523 | ||
524 | /* Send sample limit and pre/post-trigger capture ratio. */ | |
525 | sr_dbg("Setting sample limit %d, trigger point at %d", | |
526 | (readcount - 1) * 4, (delaycount - 1) * 4); | |
527 | arg[0] = ((readcount - 1) & 0xff); | |
528 | arg[1] = ((readcount - 1) & 0xff00) >> 8; | |
529 | arg[2] = ((delaycount - 1) & 0xff); | |
530 | arg[3] = ((delaycount - 1) & 0xff00) >> 8; | |
531 | if (send_longcommand(serial, CMD_CAPTURE_SIZE, arg) != SR_OK) | |
532 | return SR_ERR; | |
533 | ||
534 | /* Flag register. */ | |
535 | sr_dbg("Setting intpat %s, extpat %s, RLE %s, noise_filter %s, demux %s", | |
536 | devc->flag_reg & FLAG_INTERNAL_TEST_MODE ? "on": "off", | |
537 | devc->flag_reg & FLAG_EXTERNAL_TEST_MODE ? "on": "off", | |
538 | devc->flag_reg & FLAG_RLE ? "on" : "off", | |
539 | devc->flag_reg & FLAG_FILTER ? "on": "off", | |
540 | devc->flag_reg & FLAG_DEMUX ? "on" : "off"); | |
541 | /* 1 means "disable channel". */ | |
542 | devc->flag_reg |= ~(changrp_mask << 2) & 0x3c; | |
543 | arg[0] = devc->flag_reg & 0xff; | |
544 | arg[1] = devc->flag_reg >> 8; | |
545 | arg[2] = arg[3] = 0x00; | |
546 | if (send_longcommand(serial, CMD_SET_FLAGS, arg) != SR_OK) | |
547 | return SR_ERR; | |
548 | ||
549 | /* Start acquisition on the device. */ | |
550 | if (send_shortcommand(serial, CMD_RUN) != SR_OK) | |
551 | return SR_ERR; | |
552 | ||
553 | /* Reset all operational states. */ | |
554 | devc->rle_count = devc->num_transfers = 0; | |
555 | devc->num_samples = devc->num_bytes = 0; | |
556 | devc->cnt_bytes = devc->cnt_samples = devc->cnt_samples_rle = 0; | |
557 | memset(devc->sample, 0, 4); | |
558 | ||
559 | /* Send header packet to the session bus. */ | |
560 | std_session_send_df_header(cb_data, LOG_PREFIX); | |
561 | ||
562 | serial_source_add(serial, G_IO_IN, -1, ols_receive_data, cb_data); | |
563 | ||
564 | return SR_OK; | |
565 | } | |
566 | ||
567 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) | |
568 | { | |
569 | (void)cb_data; | |
570 | ||
571 | abort_acquisition(sdi); | |
572 | ||
573 | return SR_OK; | |
574 | } | |
575 | ||
576 | SR_PRIV struct sr_dev_driver ols_driver_info = { | |
577 | .name = "ols", | |
578 | .longname = "Openbench Logic Sniffer", | |
579 | .api_version = 1, | |
580 | .init = init, | |
581 | .cleanup = cleanup, | |
582 | .scan = scan, | |
583 | .dev_list = dev_list, | |
584 | .dev_clear = NULL, | |
585 | .config_get = config_get, | |
586 | .config_set = config_set, | |
587 | .config_list = config_list, | |
588 | .dev_open = std_serial_dev_open, | |
589 | .dev_close = std_serial_dev_close, | |
590 | .dev_acquisition_start = dev_acquisition_start, | |
591 | .dev_acquisition_stop = dev_acquisition_stop, | |
592 | .priv = NULL, | |
593 | }; |