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0aba65da | 1 | /* |
50985c20 | 2 | * This file is part of the libsigrok project. |
0aba65da | 3 | * |
13d8e03c | 4 | * Copyright (C) 2013 Bert Vermeulen <bert@biot.com> |
0aba65da UH |
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" | |
bf72f649 | 21 | #include <libserialport.h> |
0aba65da UH |
22 | |
23 | #define SERIALCOMM "115200/8n1" | |
24 | ||
e46aa4f6 | 25 | static const int32_t hwopts[] = { |
1953564a BV |
26 | SR_CONF_CONN, |
27 | SR_CONF_SERIALCOMM, | |
aeabd308 UH |
28 | }; |
29 | ||
e46aa4f6 | 30 | static const int32_t hwcaps[] = { |
1953564a BV |
31 | SR_CONF_LOGIC_ANALYZER, |
32 | SR_CONF_SAMPLERATE, | |
0c05591a | 33 | SR_CONF_TRIGGER_TYPE, |
1953564a BV |
34 | SR_CONF_CAPTURE_RATIO, |
35 | SR_CONF_LIMIT_SAMPLES, | |
eb1b610b | 36 | SR_CONF_EXTERNAL_CLOCK, |
967760a8 | 37 | SR_CONF_PATTERN_MODE, |
7b0a57fd | 38 | SR_CONF_SWAP, |
1953564a | 39 | SR_CONF_RLE, |
0aba65da UH |
40 | }; |
41 | ||
6d16fdfb BV |
42 | #define STR_PATTERN_NONE "None" |
43 | #define STR_PATTERN_EXTERNAL "External" | |
44 | #define STR_PATTERN_INTERNAL "Internal" | |
967760a8 MR |
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 | ||
7c07a178 | 58 | static const char *patterns[] = { |
6d16fdfb | 59 | STR_PATTERN_NONE, |
7c07a178 UH |
60 | STR_PATTERN_EXTERNAL, |
61 | STR_PATTERN_INTERNAL, | |
62 | }; | |
63 | ||
ba7dd8bb UH |
64 | /* Channels are numbered 0-31 (on the PCB silkscreen). */ |
65 | SR_PRIV const char *ols_channel_names[NUM_PROBES + 1] = { | |
78693401 UH |
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", | |
0aba65da UH |
69 | NULL, |
70 | }; | |
71 | ||
d3b38ad3 | 72 | /* Default supported samplerates, can be overridden by device metadata. */ |
e46aa4f6 BV |
73 | static const uint64_t samplerates[] = { |
74 | SR_HZ(10), | |
75 | SR_MHZ(200), | |
76 | SR_HZ(1), | |
0aba65da UH |
77 | }; |
78 | ||
79 | SR_PRIV struct sr_dev_driver ols_driver_info; | |
80 | static struct sr_dev_driver *di = &ols_driver_info; | |
81 | ||
03f4de8c | 82 | static int init(struct sr_context *sr_ctx) |
0aba65da | 83 | { |
f6beaac5 | 84 | return std_init(sr_ctx, di, LOG_PREFIX); |
0aba65da UH |
85 | } |
86 | ||
03f4de8c | 87 | static GSList *scan(GSList *options) |
0aba65da | 88 | { |
1987b8d6 | 89 | struct sr_config *src; |
0aba65da UH |
90 | struct sr_dev_inst *sdi; |
91 | struct drv_context *drvc; | |
92 | struct dev_context *devc; | |
ba7dd8bb | 93 | struct sr_channel *ch; |
0aba65da UH |
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 | ||
0aba65da | 101 | drvc = di->priv; |
4b97c74e | 102 | |
0aba65da UH |
103 | devices = NULL; |
104 | ||
105 | conn = serialcomm = NULL; | |
106 | for (l = options; l; l = l->next) { | |
1987b8d6 BV |
107 | src = l->data; |
108 | switch (src->key) { | |
1953564a | 109 | case SR_CONF_CONN: |
e46aa4f6 | 110 | conn = g_variant_get_string(src->data, NULL); |
0aba65da | 111 | break; |
1953564a | 112 | case SR_CONF_SERIALCOMM: |
e46aa4f6 | 113 | serialcomm = g_variant_get_string(src->data, NULL); |
0aba65da UH |
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 | ||
bf72f649 | 153 | sp_get_port_handle(serial->data, &probefd.fd); |
0aba65da UH |
154 | probefd.events = G_IO_IN; |
155 | g_poll(&probefd, 1, 1); | |
156 | ||
157 | if (probefd.revents != G_IO_IN) | |
158 | return NULL; | |
9f5d4c3c | 159 | if (serial_read_blocking(serial, buf, 4) != 4) |
0aba65da UH |
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. */ | |
72cd99b8 | 175 | sr_info("Device does not support metadata."); |
0aba65da UH |
176 | sdi = sr_dev_inst_new(0, SR_ST_INACTIVE, |
177 | "Sump", "Logic Analyzer", "v1.0"); | |
178 | sdi->driver = di; | |
0aba65da | 179 | for (i = 0; i < 32; i++) { |
ba7dd8bb UH |
180 | if (!(ch = sr_probe_new(i, SR_PROBE_LOGIC, TRUE, |
181 | ols_channel_names[i]))) | |
0aba65da | 182 | return 0; |
ba7dd8bb | 183 | sdi->channels = g_slist_append(sdi->channels, ch); |
0aba65da | 184 | } |
bf256783 | 185 | devc = ols_dev_new(); |
0aba65da UH |
186 | sdi->priv = devc; |
187 | } | |
bf256783 BV |
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. */ | |
ba7dd8bb | 193 | ols_configure_channels(sdi); |
459a0f26 BV |
194 | sdi->inst_type = SR_INST_SERIAL; |
195 | sdi->conn = serial; | |
bf256783 | 196 | |
0aba65da UH |
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 | ||
03f4de8c | 205 | static GSList *dev_list(void) |
0aba65da | 206 | { |
0e94d524 | 207 | return ((struct drv_context *)(di->priv))->instances; |
0aba65da UH |
208 | } |
209 | ||
eea49cf1 | 210 | static int cleanup(void) |
0aba65da | 211 | { |
a6630742 | 212 | return std_dev_clear(di, NULL); |
0aba65da UH |
213 | } |
214 | ||
8f996b89 | 215 | static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 216 | const struct sr_channel_group *cg) |
0aba65da UH |
217 | { |
218 | struct dev_context *devc; | |
219 | ||
53b4680f | 220 | (void)cg; |
8f996b89 | 221 | |
0c05591a BV |
222 | if (!sdi) |
223 | return SR_ERR_ARG; | |
224 | ||
225 | devc = sdi->priv; | |
035a1078 | 226 | switch (id) { |
123e1313 | 227 | case SR_CONF_SAMPLERATE: |
0c05591a BV |
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; | |
967760a8 MR |
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); | |
6d16fdfb BV |
241 | else |
242 | *data = g_variant_new_string(STR_PATTERN_NONE); | |
967760a8 | 243 | break; |
0c05591a BV |
244 | case SR_CONF_RLE: |
245 | *data = g_variant_new_boolean(devc->flag_reg & FLAG_RLE ? TRUE : FALSE); | |
7730e4f0 | 246 | break; |
0aba65da | 247 | default: |
bd6fbf62 | 248 | return SR_ERR_NA; |
0aba65da UH |
249 | } |
250 | ||
251 | return SR_OK; | |
252 | } | |
253 | ||
8f996b89 | 254 | static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi, |
53b4680f | 255 | const struct sr_channel_group *cg) |
0aba65da UH |
256 | { |
257 | struct dev_context *devc; | |
6d16fdfb | 258 | uint16_t flag; |
e46aa4f6 | 259 | uint64_t tmp_u64; |
6d16fdfb | 260 | int ret; |
967760a8 | 261 | const char *stropt; |
0aba65da | 262 | |
53b4680f | 263 | (void)cg; |
8f996b89 | 264 | |
e73ffd42 BV |
265 | if (sdi->status != SR_ST_ACTIVE) |
266 | return SR_ERR_DEV_CLOSED; | |
267 | ||
0aba65da UH |
268 | devc = sdi->priv; |
269 | ||
035a1078 | 270 | switch (id) { |
1953564a | 271 | case SR_CONF_SAMPLERATE: |
e46aa4f6 BV |
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)); | |
0aba65da | 276 | break; |
1953564a | 277 | case SR_CONF_LIMIT_SAMPLES: |
e46aa4f6 BV |
278 | tmp_u64 = g_variant_get_uint64(data); |
279 | if (tmp_u64 < MIN_NUM_SAMPLES) | |
0aba65da | 280 | return SR_ERR; |
e46aa4f6 | 281 | devc->limit_samples = tmp_u64; |
0aba65da UH |
282 | ret = SR_OK; |
283 | break; | |
1953564a | 284 | case SR_CONF_CAPTURE_RATIO: |
e46aa4f6 | 285 | devc->capture_ratio = g_variant_get_uint64(data); |
0aba65da UH |
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; | |
eb1b610b MR |
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; | |
967760a8 MR |
302 | case SR_CONF_PATTERN_MODE: |
303 | stropt = g_variant_get_string(data, NULL); | |
304 | ret = SR_OK; | |
6d16fdfb BV |
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)) { | |
967760a8 | 310 | sr_info("Enabling internal test mode."); |
6d16fdfb | 311 | flag = FLAG_INTERNAL_TEST_MODE; |
967760a8 MR |
312 | } else if (!strcmp(stropt, STR_PATTERN_EXTERNAL)) { |
313 | sr_info("Enabling external test mode."); | |
6d16fdfb | 314 | flag = FLAG_EXTERNAL_TEST_MODE; |
967760a8 MR |
315 | } else { |
316 | ret = SR_ERR; | |
317 | } | |
6d16fdfb BV |
318 | if (flag != 0xffff) { |
319 | devc->flag_reg &= ~(FLAG_INTERNAL_TEST_MODE | FLAG_EXTERNAL_TEST_MODE); | |
320 | devc->flag_reg |= flag; | |
321 | } | |
967760a8 | 322 | break; |
7b0a57fd MR |
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 | ||
1953564a | 334 | case SR_CONF_RLE: |
e46aa4f6 | 335 | if (g_variant_get_boolean(data)) { |
0aba65da UH |
336 | sr_info("Enabling RLE."); |
337 | devc->flag_reg |= FLAG_RLE; | |
aeea0572 BV |
338 | } else { |
339 | sr_info("Disabling RLE."); | |
340 | devc->flag_reg &= ~FLAG_RLE; | |
0aba65da UH |
341 | } |
342 | ret = SR_OK; | |
343 | break; | |
344 | default: | |
bd6fbf62 | 345 | ret = SR_ERR_NA; |
0aba65da UH |
346 | } |
347 | ||
348 | return ret; | |
349 | } | |
350 | ||
8f996b89 | 351 | static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi, |
53b4680f | 352 | const struct sr_channel_group *cg) |
a1c743fc | 353 | { |
f0de2dd0 BV |
354 | struct dev_context *devc; |
355 | GVariant *gvar, *grange[2]; | |
e46aa4f6 | 356 | GVariantBuilder gvb; |
f0de2dd0 | 357 | int num_channels, i; |
a1c743fc | 358 | |
53b4680f | 359 | (void)cg; |
a1c743fc BV |
360 | |
361 | switch (key) { | |
0d485e30 | 362 | case SR_CONF_SCAN_OPTIONS: |
e46aa4f6 BV |
363 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, |
364 | hwopts, ARRAY_SIZE(hwopts), sizeof(int32_t)); | |
0d485e30 | 365 | break; |
9a6517d1 | 366 | case SR_CONF_DEVICE_OPTIONS: |
e46aa4f6 BV |
367 | *data = g_variant_new_fixed_array(G_VARIANT_TYPE_INT32, |
368 | hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t)); | |
9a6517d1 | 369 | break; |
a1c743fc | 370 | case SR_CONF_SAMPLERATE: |
e46aa4f6 BV |
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); | |
a1c743fc | 376 | break; |
c50277a6 | 377 | case SR_CONF_TRIGGER_TYPE: |
e46aa4f6 | 378 | *data = g_variant_new_string(TRIGGER_TYPE); |
c50277a6 | 379 | break; |
7c07a178 UH |
380 | case SR_CONF_PATTERN_MODE: |
381 | *data = g_variant_new_strv(patterns, ARRAY_SIZE(patterns)); | |
382 | break; | |
f0de2dd0 BV |
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 | /* | |
ba7dd8bb | 393 | * Channel groups are turned off if no channels in that group are |
f0de2dd0 BV |
394 | * enabled, making more room for samples for the enabled group. |
395 | */ | |
ba7dd8bb | 396 | ols_configure_channels(sdi); |
f0de2dd0 BV |
397 | num_channels = 0; |
398 | for (i = 0; i < 4; i++) { | |
ba7dd8bb | 399 | if (devc->channel_mask & (0xff << (i * 8))) |
f0de2dd0 BV |
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; | |
a1c743fc | 406 | default: |
bd6fbf62 | 407 | return SR_ERR_NA; |
a1c743fc BV |
408 | } |
409 | ||
410 | return SR_OK; | |
411 | } | |
412 | ||
016e72f3 BV |
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 | ||
03f4de8c | 450 | static int dev_acquisition_start(const struct sr_dev_inst *sdi, |
0aba65da UH |
451 | void *cb_data) |
452 | { | |
0aba65da | 453 | struct dev_context *devc; |
459a0f26 | 454 | struct sr_serial_dev_inst *serial; |
32f09bfd | 455 | uint16_t samplecount, readcount, delaycount; |
016e72f3 | 456 | uint8_t changrp_mask, arg[4]; |
0aba65da | 457 | int num_channels; |
016e72f3 | 458 | int ret, i; |
0aba65da | 459 | |
e73ffd42 BV |
460 | if (sdi->status != SR_ST_ACTIVE) |
461 | return SR_ERR_DEV_CLOSED; | |
462 | ||
0aba65da | 463 | devc = sdi->priv; |
459a0f26 | 464 | serial = sdi->conn; |
0aba65da | 465 | |
ba7dd8bb UH |
466 | if (ols_configure_channels(sdi) != SR_OK) { |
467 | sr_err("Failed to configure channels."); | |
0aba65da UH |
468 | return SR_ERR; |
469 | } | |
470 | ||
471 | /* | |
472 | * Enable/disable channel groups in the flag register according to the | |
ba7dd8bb | 473 | * channel mask. Calculate this here, because num_channels is needed |
0aba65da UH |
474 | * to limit readcount. |
475 | */ | |
476 | changrp_mask = 0; | |
477 | num_channels = 0; | |
478 | for (i = 0; i < 4; i++) { | |
ba7dd8bb | 479 | if (devc->channel_mask & (0xff << (i * 8))) { |
0aba65da UH |
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 | */ | |
32f09bfd BV |
489 | samplecount = MIN(devc->max_samples / num_channels, devc->limit_samples); |
490 | readcount = samplecount / 4; | |
016e72f3 BV |
491 | |
492 | /* Rather read too many samples than too few. */ | |
493 | if (samplecount % 4 != 0) | |
32f09bfd | 494 | readcount++; |
0aba65da | 495 | |
016e72f3 BV |
496 | /* Basic triggers. */ |
497 | if (devc->trigger_mask[0] != 0x00000000) { | |
ba7dd8bb | 498 | /* At least one channel has a trigger on it. */ |
0aba65da UH |
499 | delaycount = readcount * (1 - devc->capture_ratio / 100.0); |
500 | devc->trigger_at = (readcount - delaycount) * 4 - devc->num_stages; | |
016e72f3 BV |
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 | } | |
0aba65da | 506 | } else { |
016e72f3 BV |
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; | |
0aba65da UH |
511 | delaycount = readcount; |
512 | } | |
513 | ||
6d16fdfb | 514 | /* Samplerate. */ |
016e72f3 | 515 | sr_dbg("Setting samplerate to %" PRIu64 "Hz (divider %u)", |
6d16fdfb | 516 | devc->cur_samplerate, devc->cur_samplerate_divider); |
016e72f3 BV |
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) | |
0aba65da UH |
522 | return SR_ERR; |
523 | ||
524 | /* Send sample limit and pre/post-trigger capture ratio. */ | |
016e72f3 | 525 | sr_dbg("Setting sample limit %d, trigger point at %d", |
6d16fdfb | 526 | (readcount - 1) * 4, (delaycount - 1) * 4); |
016e72f3 BV |
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) | |
0aba65da UH |
532 | return SR_ERR; |
533 | ||
6d16fdfb | 534 | /* Flag register. */ |
625763e2 BV |
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", | |
6d16fdfb | 537 | devc->flag_reg & FLAG_EXTERNAL_TEST_MODE ? "on": "off", |
625763e2 BV |
538 | devc->flag_reg & FLAG_RLE ? "on" : "off", |
539 | devc->flag_reg & FLAG_FILTER ? "on": "off", | |
540 | devc->flag_reg & FLAG_DEMUX ? "on" : "off"); | |
6d16fdfb | 541 | /* 1 means "disable channel". */ |
0aba65da | 542 | devc->flag_reg |= ~(changrp_mask << 2) & 0x3c; |
016e72f3 BV |
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) | |
0aba65da UH |
547 | return SR_ERR; |
548 | ||
549 | /* Start acquisition on the device. */ | |
459a0f26 | 550 | if (send_shortcommand(serial, CMD_RUN) != SR_OK) |
0aba65da UH |
551 | return SR_ERR; |
552 | ||
bf256783 | 553 | /* Reset all operational states. */ |
6d16fdfb BV |
554 | devc->rle_count = devc->num_transfers = 0; |
555 | devc->num_samples = devc->num_bytes = 0; | |
625763e2 | 556 | devc->cnt_bytes = devc->cnt_samples = devc->cnt_samples_rle = 0; |
abb39e6b | 557 | memset(devc->sample, 0, 4); |
bf256783 | 558 | |
4afdfd46 | 559 | /* Send header packet to the session bus. */ |
29a27196 | 560 | std_session_send_df_header(cb_data, LOG_PREFIX); |
4afdfd46 | 561 | |
abc4b335 | 562 | serial_source_add(serial, G_IO_IN, -1, ols_receive_data, cb_data); |
0aba65da | 563 | |
0aba65da UH |
564 | return SR_OK; |
565 | } | |
566 | ||
03f4de8c | 567 | static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data) |
0aba65da | 568 | { |
0aba65da UH |
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, | |
03f4de8c | 580 | .init = init, |
eea49cf1 | 581 | .cleanup = cleanup, |
03f4de8c BV |
582 | .scan = scan, |
583 | .dev_list = dev_list, | |
a6630742 | 584 | .dev_clear = NULL, |
035a1078 BV |
585 | .config_get = config_get, |
586 | .config_set = config_set, | |
a1c743fc | 587 | .config_list = config_list, |
854434de | 588 | .dev_open = std_serial_dev_open, |
bf2c987f | 589 | .dev_close = std_serial_dev_close, |
03f4de8c BV |
590 | .dev_acquisition_start = dev_acquisition_start, |
591 | .dev_acquisition_stop = dev_acquisition_stop, | |
0aba65da UH |
592 | .priv = NULL, |
593 | }; |