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Commit | Line | Data |
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a1bb33af UH |
1 | /* |
2 | * This file is part of the sigrok project. | |
3 | * | |
4 | * Copyright (C) 2010 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 <stdio.h> | |
21 | #include <stdint.h> | |
22 | #include <stdlib.h> | |
23 | #include <sys/types.h> | |
24 | #include <sys/stat.h> | |
25 | #include <fcntl.h> | |
26 | #include <unistd.h> | |
a9f54bcd UH |
27 | #ifdef _WIN32 |
28 | #include <windows.h> | |
29 | #else | |
a1bb33af | 30 | #include <termios.h> |
926b866c | 31 | #endif |
a1bb33af UH |
32 | #include <string.h> |
33 | #include <sys/time.h> | |
34 | #include <inttypes.h> | |
926b866c UH |
35 | #ifdef _WIN32 |
36 | /* TODO */ | |
37 | #else | |
6937bb75 | 38 | #include <arpa/inet.h> |
926b866c | 39 | #endif |
a1bb33af | 40 | #include <glib.h> |
43fc7885 | 41 | #include <sigrok.h> |
1483577e | 42 | #include <sigrok-internal.h> |
4fe9a6da | 43 | #include "ols.h" |
a1bb33af | 44 | |
1fdb75e1 UH |
45 | #ifdef _WIN32 |
46 | #define O_NONBLOCK FIONBIO | |
47 | #endif | |
48 | ||
a1bb33af UH |
49 | |
50 | static int capabilities[] = { | |
5a2326a7 UH |
51 | SR_HWCAP_LOGIC_ANALYZER, |
52 | SR_HWCAP_SAMPLERATE, | |
53 | SR_HWCAP_CAPTURE_RATIO, | |
54 | SR_HWCAP_LIMIT_SAMPLES, | |
43fc7885 | 55 | 0, |
a1bb33af UH |
56 | }; |
57 | ||
4fe9a6da | 58 | /* default supported samplerates, can be overridden by device metadata */ |
60679b18 | 59 | static struct sr_samplerates samplerates = { |
c9140419 | 60 | SR_HZ(10), |
59df0c77 | 61 | SR_MHZ(200), |
c9140419 UH |
62 | SR_HZ(1), |
63 | NULL, | |
a1bb33af UH |
64 | }; |
65 | ||
6c290072 | 66 | /* List of struct sr_serial_device_instance */ |
a1bb33af UH |
67 | static GSList *device_instances = NULL; |
68 | ||
a1bb33af | 69 | |
a1bb33af | 70 | |
6937bb75 | 71 | static int send_shortcommand(int fd, uint8_t command) |
a1bb33af UH |
72 | { |
73 | char buf[1]; | |
74 | ||
b08024a8 | 75 | sr_dbg("ols: sending cmd 0x%.2x", command); |
a1bb33af | 76 | buf[0] = command; |
2119ab03 | 77 | if (serial_write(fd, buf, 1) != 1) |
e46b8fb1 | 78 | return SR_ERR; |
a1bb33af | 79 | |
e46b8fb1 | 80 | return SR_OK; |
a1bb33af UH |
81 | } |
82 | ||
6937bb75 | 83 | static int send_longcommand(int fd, uint8_t command, uint32_t data) |
a1bb33af UH |
84 | { |
85 | char buf[5]; | |
86 | ||
b08024a8 | 87 | sr_dbg("ols: sending cmd 0x%.2x data 0x%.8x", command, data); |
a1bb33af | 88 | buf[0] = command; |
6937bb75 BV |
89 | buf[1] = (data & 0xff000000) >> 24; |
90 | buf[2] = (data & 0xff0000) >> 16; | |
91 | buf[3] = (data & 0xff00) >> 8; | |
92 | buf[4] = data & 0xff; | |
2119ab03 | 93 | if (serial_write(fd, buf, 5) != 5) |
e46b8fb1 | 94 | return SR_ERR; |
a1bb33af | 95 | |
e46b8fb1 | 96 | return SR_OK; |
a1bb33af UH |
97 | } |
98 | ||
4fe9a6da | 99 | static int configure_probes(struct ols_device *ols, GSList *probes) |
a1bb33af | 100 | { |
1afe8989 | 101 | struct sr_probe *probe; |
a1bb33af | 102 | GSList *l; |
6937bb75 | 103 | int probe_bit, stage, i; |
a1bb33af UH |
104 | char *tc; |
105 | ||
4fe9a6da | 106 | ols->probe_mask = 0; |
43fc7885 | 107 | for (i = 0; i < NUM_TRIGGER_STAGES; i++) { |
4fe9a6da BV |
108 | ols->trigger_mask[i] = 0; |
109 | ols->trigger_value[i] = 0; | |
a1bb33af UH |
110 | } |
111 | ||
4fe9a6da | 112 | ols->num_stages = 0; |
43fc7885 | 113 | for (l = probes; l; l = l->next) { |
1afe8989 | 114 | probe = (struct sr_probe *)l->data; |
43fc7885 | 115 | if (!probe->enabled) |
6937bb75 BV |
116 | continue; |
117 | ||
43fc7885 UH |
118 | /* |
119 | * Set up the probe mask for later configuration into the | |
120 | * flag register. | |
121 | */ | |
a1bb33af | 122 | probe_bit = 1 << (probe->index - 1); |
4fe9a6da | 123 | ols->probe_mask |= probe_bit; |
6937bb75 | 124 | |
a803c0db | 125 | if (!probe->trigger) |
6937bb75 BV |
126 | continue; |
127 | ||
43fc7885 | 128 | /* Configure trigger mask and value. */ |
6937bb75 | 129 | stage = 0; |
43fc7885 | 130 | for (tc = probe->trigger; tc && *tc; tc++) { |
4fe9a6da | 131 | ols->trigger_mask[stage] |= probe_bit; |
43fc7885 | 132 | if (*tc == '1') |
4fe9a6da | 133 | ols->trigger_value[stage] |= probe_bit; |
6937bb75 | 134 | stage++; |
43fc7885 UH |
135 | if (stage > 3) |
136 | /* | |
137 | * TODO: Only supporting parallel mode, with | |
138 | * up to 4 stages. | |
139 | */ | |
e46b8fb1 | 140 | return SR_ERR; |
a1bb33af | 141 | } |
4fe9a6da BV |
142 | if (stage > ols->num_stages) |
143 | ols->num_stages = stage; | |
a1bb33af UH |
144 | } |
145 | ||
e46b8fb1 | 146 | return SR_OK; |
a1bb33af UH |
147 | } |
148 | ||
a803c0db | 149 | static uint32_t reverse16(uint32_t in) |
6937bb75 BV |
150 | { |
151 | uint32_t out; | |
152 | ||
a803c0db BV |
153 | out = (in & 0xff) << 8; |
154 | out |= (in & 0xff00) >> 8; | |
155 | out |= (in & 0xff0000) << 8; | |
156 | out |= (in & 0xff000000) >> 8; | |
157 | ||
158 | return out; | |
159 | } | |
160 | ||
161 | static uint32_t reverse32(uint32_t in) | |
162 | { | |
163 | uint32_t out; | |
164 | ||
165 | out = (in & 0xff) << 24; | |
166 | out |= (in & 0xff00) << 8; | |
167 | out |= (in & 0xff0000) >> 8; | |
168 | out |= (in & 0xff000000) >> 24; | |
169 | ||
170 | return out; | |
6937bb75 BV |
171 | } |
172 | ||
4fe9a6da BV |
173 | static struct ols_device *ols_device_new(void) |
174 | { | |
175 | struct ols_device *ols; | |
176 | ||
177 | ols = g_malloc0(sizeof(struct ols_device)); | |
178 | ols->trigger_at = -1; | |
179 | ols->probe_mask = 0xffffffff; | |
180 | ols->cur_samplerate = SR_KHZ(200); | |
181 | ||
182 | return ols; | |
183 | } | |
184 | ||
185 | static struct sr_device_instance *get_metadata(int fd) | |
186 | { | |
187 | struct sr_device_instance *sdi; | |
188 | struct ols_device *ols; | |
189 | uint32_t tmp_int; | |
190 | uint8_t key, type, token; | |
191 | GString *tmp_str, *devicename, *version; | |
192 | gchar tmp_c; | |
193 | ||
194 | sdi = sr_device_instance_new(0, SR_ST_INACTIVE, NULL, NULL, NULL); | |
195 | ols = ols_device_new(); | |
196 | sdi->priv = ols; | |
197 | ||
198 | devicename = g_string_new(""); | |
199 | version = g_string_new(""); | |
200 | ||
201 | key = 0xff; | |
202 | while (key) { | |
203 | if (serial_read(fd, &key, 1) != 1 || key == 0x00) | |
204 | break; | |
205 | type = key >> 5; | |
206 | token = key & 0x1f; | |
207 | switch (type) { | |
208 | case 0: | |
209 | /* NULL-terminated string */ | |
210 | tmp_str = g_string_new(""); | |
211 | while (serial_read(fd, &tmp_c, 1) == 1 && tmp_c != '\0') | |
212 | g_string_append_c(tmp_str, tmp_c); | |
b08024a8 UH |
213 | sr_dbg("ols: got metadata key 0x%.2x value '%s'", |
214 | key, tmp_str->str); | |
4fe9a6da BV |
215 | switch (token) { |
216 | case 0x01: | |
217 | /* Device name */ | |
218 | devicename = g_string_append(devicename, tmp_str->str); | |
219 | break; | |
220 | case 0x02: | |
221 | /* FPGA firmware version */ | |
222 | if (version->len) | |
223 | g_string_append(version, ", "); | |
224 | g_string_append(version, "FPGA version "); | |
225 | g_string_append(version, tmp_str->str); | |
226 | break; | |
227 | case 0x03: | |
228 | /* Ancillary version */ | |
229 | if (version->len) | |
230 | g_string_append(version, ", "); | |
231 | g_string_append(version, "Ancillary version "); | |
232 | g_string_append(version, tmp_str->str); | |
233 | break; | |
234 | default: | |
b08024a8 UH |
235 | sr_info("ols: unknown token 0x%.2x: '%s'", |
236 | token, tmp_str->str); | |
4fe9a6da BV |
237 | break; |
238 | } | |
239 | g_string_free(tmp_str, TRUE); | |
240 | break; | |
241 | case 1: | |
242 | /* 32-bit unsigned integer */ | |
243 | if (serial_read(fd, &tmp_int, 4) != 4) | |
244 | break; | |
245 | tmp_int = reverse32(tmp_int); | |
b08024a8 UH |
246 | sr_dbg("ols: got metadata key 0x%.2x value 0x%.8x", |
247 | key, tmp_int); | |
4fe9a6da BV |
248 | switch (token) { |
249 | case 0x00: | |
250 | /* Number of usable probes */ | |
251 | ols->num_probes = tmp_int; | |
252 | break; | |
253 | case 0x01: | |
254 | /* Amount of sample memory available (bytes) */ | |
255 | ols->max_samples = tmp_int; | |
256 | break; | |
257 | case 0x02: | |
258 | /* Amount of dynamic memory available (bytes) */ | |
259 | /* what is this for? */ | |
260 | break; | |
261 | case 0x03: | |
262 | /* Maximum sample rate (hz) */ | |
263 | ols->max_samplerate = tmp_int; | |
264 | break; | |
265 | case 0x04: | |
266 | /* protocol version */ | |
267 | ols->protocol_version = tmp_int; | |
268 | break; | |
269 | default: | |
b08024a8 UH |
270 | sr_info("ols: unknown token 0x%.2x: 0x%.8x", |
271 | token, tmp_int); | |
4fe9a6da BV |
272 | break; |
273 | } | |
274 | break; | |
275 | case 2: | |
276 | /* 8-bit unsigned integer */ | |
277 | if (serial_read(fd, &tmp_c, 1) != 1) | |
278 | break; | |
b08024a8 UH |
279 | sr_dbg("ols: got metadata key 0x%.2x value 0x%.2x", |
280 | key, tmp_c); | |
4fe9a6da BV |
281 | switch (token) { |
282 | case 0x00: | |
283 | /* Number of usable probes */ | |
284 | ols->num_probes = tmp_c; | |
285 | break; | |
286 | case 0x01: | |
287 | /* protocol version */ | |
288 | ols->protocol_version = tmp_c; | |
289 | break; | |
290 | default: | |
b08024a8 UH |
291 | sr_info("ols: unknown token 0x%.2x: 0x%.2x", |
292 | token, tmp_c); | |
4fe9a6da BV |
293 | break; |
294 | } | |
295 | break; | |
296 | default: | |
297 | /* unknown type */ | |
298 | break; | |
299 | } | |
300 | } | |
301 | ||
302 | sdi->model = devicename->str; | |
303 | sdi->version = version->str; | |
304 | g_string_free(devicename, FALSE); | |
305 | g_string_free(version, FALSE); | |
306 | ||
307 | return sdi; | |
308 | } | |
309 | ||
310 | ||
54ac5277 | 311 | static int hw_init(const char *deviceinfo) |
a1bb33af | 312 | { |
a00ba012 | 313 | struct sr_device_instance *sdi; |
4fe9a6da | 314 | struct ols_device *ols; |
a1bb33af | 315 | GSList *ports, *l; |
4fe9a6da | 316 | GPollFD *fds, probefd; |
6937bb75 | 317 | int devcnt, final_devcnt, num_ports, fd, ret, i; |
d02a535e | 318 | char buf[8], **device_names, **serial_params; |
a1bb33af | 319 | |
43fc7885 | 320 | if (deviceinfo) |
6937bb75 | 321 | ports = g_slist_append(NULL, strdup(deviceinfo)); |
a1bb33af | 322 | else |
43fc7885 | 323 | /* No specific device given, so scan all serial ports. */ |
a1bb33af UH |
324 | ports = list_serial_ports(); |
325 | ||
326 | num_ports = g_slist_length(ports); | |
6937bb75 | 327 | fds = calloc(1, num_ports * sizeof(GPollFD)); |
43fc7885 UH |
328 | device_names = malloc(num_ports * sizeof(char *)); |
329 | serial_params = malloc(num_ports * sizeof(char *)); | |
a1bb33af | 330 | devcnt = 0; |
43fc7885 UH |
331 | for (l = ports; l; l = l->next) { |
332 | /* The discovery procedure is like this: first send the Reset | |
333 | * command (0x00) 5 times, since the device could be anywhere | |
334 | * in a 5-byte command. Then send the ID command (0x02). | |
335 | * If the device responds with 4 bytes ("OLS1" or "SLA1"), we | |
336 | * have a match. | |
337 | * | |
338 | * Since it may take the device a while to respond at 115Kb/s, | |
339 | * we do all the sending first, then wait for all of them to | |
340 | * respond with g_poll(). | |
a1bb33af | 341 | */ |
b08024a8 | 342 | sr_info("ols: probing %s...", (char *)l->data); |
d02a535e | 343 | fd = serial_open(l->data, O_RDWR | O_NONBLOCK); |
43fc7885 | 344 | if (fd != -1) { |
d02a535e BV |
345 | serial_params[devcnt] = serial_backup_params(fd); |
346 | serial_set_params(fd, 115200, 8, 0, 1, 2); | |
e46b8fb1 | 347 | ret = SR_OK; |
43fc7885 UH |
348 | for (i = 0; i < 5; i++) { |
349 | if ((ret = send_shortcommand(fd, | |
e46b8fb1 | 350 | CMD_RESET)) != SR_OK) { |
43fc7885 | 351 | /* Serial port is not writable. */ |
6937bb75 BV |
352 | break; |
353 | } | |
a1bb33af | 354 | } |
e46b8fb1 | 355 | if (ret != SR_OK) { |
43fc7885 UH |
356 | serial_restore_params(fd, |
357 | serial_params[devcnt]); | |
d02a535e | 358 | serial_close(fd); |
6937bb75 | 359 | continue; |
d02a535e | 360 | } |
6937bb75 BV |
361 | send_shortcommand(fd, CMD_ID); |
362 | fds[devcnt].fd = fd; | |
363 | fds[devcnt].events = G_IO_IN; | |
364 | device_names[devcnt] = strdup(l->data); | |
365 | devcnt++; | |
a1bb33af | 366 | } |
6937bb75 | 367 | free(l->data); |
a1bb33af UH |
368 | } |
369 | ||
5b15b41e PS |
370 | /* 2ms isn't enough for reliable transfer with pl2303, let's try 10 */ |
371 | usleep(10000); | |
a1bb33af UH |
372 | |
373 | final_devcnt = 0; | |
374 | g_poll(fds, devcnt, 1); | |
4fe9a6da | 375 | |
43fc7885 | 376 | for (i = 0; i < devcnt; i++) { |
4fe9a6da BV |
377 | if (fds[i].revents != G_IO_IN) |
378 | continue; | |
379 | if (serial_read(fds[i].fd, buf, 4) != 4) | |
380 | continue; | |
381 | if (strncmp(buf, "1SLO", 4) && strncmp(buf, "1ALS", 4)) | |
382 | continue; | |
383 | ||
384 | /* definitely using the OLS protocol, check if it supports | |
385 | * the metadata command | |
386 | */ | |
387 | send_shortcommand(fds[i].fd, CMD_METADATA); | |
388 | probefd.fd = fds[i].fd; | |
389 | probefd.events = G_IO_IN; | |
390 | if (g_poll(&probefd, 1, 10) > 0) { | |
391 | /* got metadata */ | |
392 | sdi = get_metadata(fds[i].fd); | |
393 | sdi->index = final_devcnt; | |
394 | } else { | |
395 | /* not an OLS -- some other board that uses the sump protocol */ | |
396 | sdi = sr_device_instance_new(final_devcnt, SR_ST_INACTIVE, | |
397 | "Sump", "Logic Analyzer", "v1.0"); | |
398 | ols = ols_device_new(); | |
399 | ols->num_probes = 32; | |
400 | sdi->priv = ols; | |
a1bb33af | 401 | } |
4fe9a6da BV |
402 | sdi->serial = sr_serial_device_instance_new(device_names[i], -1); |
403 | device_instances = g_slist_append(device_instances, sdi); | |
404 | final_devcnt++; | |
405 | serial_close(fds[i].fd); | |
406 | fds[i].fd = 0; | |
a1bb33af | 407 | |
4fe9a6da BV |
408 | } |
409 | ||
410 | /* clean up after all the probing */ | |
411 | for (i = 0; i < devcnt; i++) { | |
43fc7885 | 412 | if (fds[i].fd != 0) { |
d02a535e BV |
413 | serial_restore_params(fds[i].fd, serial_params[i]); |
414 | serial_close(fds[i].fd); | |
6937bb75 | 415 | } |
d02a535e | 416 | free(serial_params[i]); |
4fe9a6da | 417 | free(device_names[i]); |
a1bb33af UH |
418 | } |
419 | ||
6937bb75 BV |
420 | free(fds); |
421 | free(device_names); | |
d02a535e | 422 | free(serial_params); |
a1bb33af UH |
423 | g_slist_free(ports); |
424 | ||
425 | return final_devcnt; | |
426 | } | |
427 | ||
a1bb33af UH |
428 | static int hw_opendev(int device_index) |
429 | { | |
a00ba012 | 430 | struct sr_device_instance *sdi; |
a1bb33af | 431 | |
d32d961d | 432 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
e46b8fb1 | 433 | return SR_ERR; |
a1bb33af | 434 | |
d02a535e | 435 | sdi->serial->fd = serial_open(sdi->serial->port, O_RDWR); |
43fc7885 | 436 | if (sdi->serial->fd == -1) |
e46b8fb1 | 437 | return SR_ERR; |
a1bb33af | 438 | |
5a2326a7 | 439 | sdi->status = SR_ST_ACTIVE; |
a1bb33af | 440 | |
e46b8fb1 | 441 | return SR_OK; |
a1bb33af UH |
442 | } |
443 | ||
a1bb33af UH |
444 | static void hw_closedev(int device_index) |
445 | { | |
a00ba012 | 446 | struct sr_device_instance *sdi; |
a1bb33af | 447 | |
d32d961d | 448 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
a1bb33af UH |
449 | return; |
450 | ||
43fc7885 | 451 | if (sdi->serial->fd != -1) { |
d02a535e | 452 | serial_close(sdi->serial->fd); |
a1bb33af | 453 | sdi->serial->fd = -1; |
5a2326a7 | 454 | sdi->status = SR_ST_INACTIVE; |
a1bb33af | 455 | } |
a1bb33af UH |
456 | } |
457 | ||
a1bb33af UH |
458 | static void hw_cleanup(void) |
459 | { | |
460 | GSList *l; | |
a00ba012 | 461 | struct sr_device_instance *sdi; |
a1bb33af | 462 | |
43fc7885 UH |
463 | /* Properly close all devices. */ |
464 | for (l = device_instances; l; l = l->next) { | |
a1bb33af | 465 | sdi = l->data; |
43fc7885 | 466 | if (sdi->serial->fd != -1) |
d02a535e | 467 | serial_close(sdi->serial->fd); |
a00ba012 | 468 | sr_device_instance_free(sdi); |
a1bb33af UH |
469 | } |
470 | g_slist_free(device_instances); | |
471 | device_instances = NULL; | |
a1bb33af UH |
472 | } |
473 | ||
a1bb33af UH |
474 | static void *hw_get_device_info(int device_index, int device_info_id) |
475 | { | |
a00ba012 | 476 | struct sr_device_instance *sdi; |
4fe9a6da | 477 | struct ols_device *ols; |
a1bb33af UH |
478 | void *info; |
479 | ||
d32d961d | 480 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
a1bb33af | 481 | return NULL; |
4fe9a6da | 482 | ols = sdi->priv; |
a1bb33af UH |
483 | |
484 | info = NULL; | |
43fc7885 | 485 | switch (device_info_id) { |
5a2326a7 | 486 | case SR_DI_INSTANCE: |
a1bb33af UH |
487 | info = sdi; |
488 | break; | |
5a2326a7 | 489 | case SR_DI_NUM_PROBES: |
a1bb33af UH |
490 | info = GINT_TO_POINTER(NUM_PROBES); |
491 | break; | |
5a2326a7 | 492 | case SR_DI_SAMPLERATES: |
a1bb33af UH |
493 | info = &samplerates; |
494 | break; | |
5a2326a7 | 495 | case SR_DI_TRIGGER_TYPES: |
43fc7885 | 496 | info = (char *)TRIGGER_TYPES; |
a1bb33af | 497 | break; |
5a2326a7 | 498 | case SR_DI_CUR_SAMPLERATE: |
4fe9a6da | 499 | info = &ols->cur_samplerate; |
a1bb33af UH |
500 | break; |
501 | } | |
502 | ||
503 | return info; | |
504 | } | |
505 | ||
a1bb33af UH |
506 | static int hw_get_status(int device_index) |
507 | { | |
a00ba012 | 508 | struct sr_device_instance *sdi; |
a1bb33af | 509 | |
d32d961d | 510 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
5a2326a7 | 511 | return SR_ST_NOT_FOUND; |
a1bb33af UH |
512 | |
513 | return sdi->status; | |
514 | } | |
515 | ||
a1bb33af UH |
516 | static int *hw_get_capabilities(void) |
517 | { | |
a1bb33af UH |
518 | return capabilities; |
519 | } | |
520 | ||
a00ba012 | 521 | static int set_configuration_samplerate(struct sr_device_instance *sdi, |
43fc7885 | 522 | uint64_t samplerate) |
a1bb33af | 523 | { |
4fe9a6da | 524 | struct ols_device *ols; |
a1bb33af | 525 | |
4fe9a6da BV |
526 | ols = sdi->priv; |
527 | if (ols->max_samplerate) { | |
528 | if (samplerate > ols->max_samplerate) | |
529 | return SR_ERR_SAMPLERATE; | |
530 | } else if (samplerate < samplerates.low || samplerate > samplerates.high) | |
e46b8fb1 | 531 | return SR_ERR_SAMPLERATE; |
a1bb33af | 532 | |
4fe9a6da | 533 | ols->cur_samplerate = samplerate; |
43fc7885 | 534 | if (samplerate > CLOCK_RATE) { |
4fe9a6da BV |
535 | ols->flag_reg |= FLAG_DEMUX; |
536 | ols->cur_samplerate_divider = (CLOCK_RATE * 2 / samplerate) - 1; | |
43fc7885 | 537 | } else { |
4fe9a6da BV |
538 | ols->flag_reg &= ~FLAG_DEMUX; |
539 | ols->cur_samplerate_divider = (CLOCK_RATE / samplerate) - 1; | |
a1bb33af | 540 | } |
a1bb33af | 541 | |
e46b8fb1 | 542 | return SR_OK; |
a1bb33af UH |
543 | } |
544 | ||
a1bb33af UH |
545 | static int hw_set_configuration(int device_index, int capability, void *value) |
546 | { | |
a00ba012 | 547 | struct sr_device_instance *sdi; |
4fe9a6da | 548 | struct ols_device *ols; |
a1bb33af UH |
549 | int ret; |
550 | uint64_t *tmp_u64; | |
551 | ||
d32d961d | 552 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
e46b8fb1 | 553 | return SR_ERR; |
4fe9a6da | 554 | ols = sdi->priv; |
a1bb33af | 555 | |
5a2326a7 | 556 | if (sdi->status != SR_ST_ACTIVE) |
e46b8fb1 | 557 | return SR_ERR; |
a1bb33af | 558 | |
a803c0db | 559 | switch (capability) { |
5a2326a7 | 560 | case SR_HWCAP_SAMPLERATE: |
a1bb33af UH |
561 | tmp_u64 = value; |
562 | ret = set_configuration_samplerate(sdi, *tmp_u64); | |
a803c0db | 563 | break; |
5a2326a7 | 564 | case SR_HWCAP_PROBECONFIG: |
4fe9a6da | 565 | ret = configure_probes(ols, (GSList *) value); |
a803c0db | 566 | break; |
5a2326a7 | 567 | case SR_HWCAP_LIMIT_SAMPLES: |
2458ea65 | 568 | tmp_u64 = value; |
574ce498 | 569 | if (*tmp_u64 < MIN_NUM_SAMPLES) |
e46b8fb1 | 570 | return SR_ERR; |
4fe9a6da | 571 | ols->limit_samples = *tmp_u64; |
b08024a8 | 572 | sr_info("ols: sample limit %" PRIu64, ols->limit_samples); |
e46b8fb1 | 573 | ret = SR_OK; |
a803c0db | 574 | break; |
5a2326a7 | 575 | case SR_HWCAP_CAPTURE_RATIO: |
a803c0db | 576 | tmp_u64 = value; |
4fe9a6da BV |
577 | ols->capture_ratio = *tmp_u64; |
578 | if (ols->capture_ratio < 0 || ols->capture_ratio > 100) { | |
579 | ols->capture_ratio = 0; | |
e46b8fb1 | 580 | ret = SR_ERR; |
43fc7885 | 581 | } else |
e46b8fb1 | 582 | ret = SR_OK; |
a803c0db BV |
583 | break; |
584 | default: | |
e46b8fb1 | 585 | ret = SR_ERR; |
43fc7885 | 586 | } |
a1bb33af UH |
587 | |
588 | return ret; | |
589 | } | |
590 | ||
a1bb33af UH |
591 | static int receive_data(int fd, int revents, void *user_data) |
592 | { | |
b9c735a2 | 593 | struct sr_datafeed_packet packet; |
4fe9a6da BV |
594 | struct sr_device_instance *sdi; |
595 | struct ols_device *ols; | |
596 | GSList *l; | |
597 | int count, buflen, num_channels, offset, i, j; | |
a1bb33af UH |
598 | unsigned char byte, *buffer; |
599 | ||
4fe9a6da BV |
600 | /* find this device's ols_device struct by its fd */ |
601 | ols = NULL; | |
602 | for (l = device_instances; l; l = l->next) { | |
603 | sdi = l->data; | |
604 | if (sdi->serial->fd == fd) { | |
605 | ols = sdi->priv; | |
606 | break; | |
607 | } | |
608 | } | |
609 | if (!ols) | |
610 | /* shouldn't happen */ | |
611 | return TRUE; | |
612 | ||
613 | if (ols->num_transfers++ == 0) { | |
43fc7885 UH |
614 | /* |
615 | * First time round, means the device started sending data, | |
616 | * and will not stop until done. If it stops sending for | |
617 | * longer than it takes to send a byte, that means it's | |
618 | * finished. We'll double that to 30ms to be sure... | |
a1bb33af | 619 | */ |
6f1be0a2 UH |
620 | sr_source_remove(fd); |
621 | sr_source_add(fd, G_IO_IN, 30, receive_data, user_data); | |
4fe9a6da | 622 | ols->raw_sample_buf = malloc(ols->limit_samples * 4); |
a803c0db | 623 | /* fill with 1010... for debugging */ |
4fe9a6da | 624 | memset(ols->raw_sample_buf, 0x82, ols->limit_samples * 4); |
a1bb33af UH |
625 | } |
626 | ||
6937bb75 | 627 | num_channels = 0; |
43fc7885 | 628 | for (i = 0x20; i > 0x02; i /= 2) { |
4fe9a6da | 629 | if ((ols->flag_reg & i) == 0) |
6937bb75 | 630 | num_channels++; |
43fc7885 | 631 | } |
6937bb75 | 632 | |
43fc7885 | 633 | if (revents == G_IO_IN |
4fe9a6da | 634 | && ols->num_transfers / num_channels <= ols->limit_samples) { |
2119ab03 | 635 | if (serial_read(fd, &byte, 1) != 1) |
a1bb33af UH |
636 | return FALSE; |
637 | ||
4fe9a6da | 638 | ols->sample[ols->num_bytes++] = byte; |
b08024a8 | 639 | sr_dbg("ols: received byte 0x%.2x", byte); |
4fe9a6da | 640 | if (ols->num_bytes == num_channels) { |
43fc7885 | 641 | /* Got a full sample. */ |
b08024a8 UH |
642 | sr_dbg("ols: received sample 0x%.*x", |
643 | ols->num_bytes * 2, (int) *ols->sample); | |
4fe9a6da | 644 | if (ols->flag_reg & FLAG_RLE) { |
43fc7885 UH |
645 | /* |
646 | * In RLE mode -1 should never come in as a | |
647 | * sample, because bit 31 is the "count" flag. | |
648 | * TODO: Endianness may be wrong here, could be | |
649 | * sample[3]. | |
650 | */ | |
4fe9a6da BV |
651 | if (ols->sample[0] & 0x80 |
652 | && !(ols->last_sample[0] & 0x80)) { | |
653 | count = (int)(*ols->sample) & 0x7fffffff; | |
a1bb33af UH |
654 | buffer = g_malloc(count); |
655 | buflen = 0; | |
43fc7885 | 656 | for (i = 0; i < count; i++) { |
4fe9a6da | 657 | memcpy(buffer + buflen, ols->last_sample, 4); |
a1bb33af UH |
658 | buflen += 4; |
659 | } | |
43fc7885 UH |
660 | } else { |
661 | /* | |
662 | * Just a single sample, next sample | |
663 | * will probably be a count referring | |
664 | * to this -- but this one is still a | |
665 | * part of the stream. | |
a1bb33af | 666 | */ |
4fe9a6da | 667 | buffer = ols->sample; |
a1bb33af UH |
668 | buflen = 4; |
669 | } | |
43fc7885 UH |
670 | } else { |
671 | /* No compression. */ | |
4fe9a6da | 672 | buffer = ols->sample; |
a1bb33af UH |
673 | buflen = 4; |
674 | } | |
675 | ||
43fc7885 UH |
676 | if (num_channels < 4) { |
677 | /* | |
678 | * Some channel groups may have been turned | |
679 | * off, to speed up transfer between the | |
680 | * hardware and the PC. Expand that here before | |
681 | * submitting it over the session bus -- | |
682 | * whatever is listening on the bus will be | |
683 | * expecting a full 32-bit sample, based on | |
684 | * the number of probes. | |
6937bb75 BV |
685 | */ |
686 | j = 0; | |
4fe9a6da | 687 | memset(ols->tmp_sample, 0, 4); |
43fc7885 | 688 | for (i = 0; i < 4; i++) { |
4fe9a6da | 689 | if (((ols->flag_reg >> 2) & (1 << i)) == 0) { |
43fc7885 UH |
690 | /* |
691 | * This channel group was | |
692 | * enabled, copy from received | |
693 | * sample. | |
694 | */ | |
4fe9a6da | 695 | ols->tmp_sample[i] = ols->sample[j++]; |
6937bb75 BV |
696 | } |
697 | } | |
4fe9a6da | 698 | memcpy(ols->sample, ols->tmp_sample, 4); |
b08024a8 | 699 | sr_dbg("ols: full sample 0x%.8x", (int) *ols->sample); |
6937bb75 BV |
700 | } |
701 | ||
a803c0db BV |
702 | /* the OLS sends its sample buffer backwards. |
703 | * store it in reverse order here, so we can dump | |
704 | * this on the session bus later. | |
705 | */ | |
4fe9a6da BV |
706 | offset = (ols->limit_samples - ols->num_transfers / num_channels) * 4; |
707 | memcpy(ols->raw_sample_buf + offset, ols->sample, 4); | |
a803c0db | 708 | |
4fe9a6da BV |
709 | if (buffer == ols->sample) |
710 | memcpy(ols->last_sample, buffer, num_channels); | |
a1bb33af UH |
711 | else |
712 | g_free(buffer); | |
713 | ||
4fe9a6da BV |
714 | memset(ols->sample, 0, 4); |
715 | ols->num_bytes = 0; | |
a1bb33af | 716 | } |
43fc7885 UH |
717 | } else { |
718 | /* | |
719 | * This is the main loop telling us a timeout was reached, or | |
720 | * we've acquired all the samples we asked for -- we're done. | |
a803c0db | 721 | * Send the (properly-ordered) buffer to the frontend. |
43fc7885 | 722 | */ |
4fe9a6da | 723 | if (ols->trigger_at != -1) { |
a803c0db BV |
724 | /* a trigger was set up, so we need to tell the frontend |
725 | * about it. | |
726 | */ | |
4fe9a6da | 727 | if (ols->trigger_at > 0) { |
a803c0db | 728 | /* there are pre-trigger samples, send those first */ |
5a2326a7 | 729 | packet.type = SR_DF_LOGIC; |
4fe9a6da | 730 | packet.length = ols->trigger_at * 4; |
4c046c6b | 731 | packet.unitsize = 4; |
4fe9a6da | 732 | packet.payload = ols->raw_sample_buf; |
8a2efef2 | 733 | sr_session_bus(user_data, &packet); |
a803c0db BV |
734 | } |
735 | ||
5a2326a7 | 736 | packet.type = SR_DF_TRIGGER; |
a803c0db | 737 | packet.length = 0; |
8a2efef2 | 738 | sr_session_bus(user_data, &packet); |
a803c0db | 739 | |
5a2326a7 | 740 | packet.type = SR_DF_LOGIC; |
4fe9a6da | 741 | packet.length = (ols->limit_samples * 4) - (ols->trigger_at * 4); |
4c046c6b | 742 | packet.unitsize = 4; |
4fe9a6da | 743 | packet.payload = ols->raw_sample_buf + ols->trigger_at * 4; |
8a2efef2 | 744 | sr_session_bus(user_data, &packet); |
a803c0db | 745 | } else { |
5a2326a7 | 746 | packet.type = SR_DF_LOGIC; |
4fe9a6da | 747 | packet.length = ols->limit_samples * 4; |
4c046c6b | 748 | packet.unitsize = 4; |
4fe9a6da | 749 | packet.payload = ols->raw_sample_buf; |
8a2efef2 | 750 | sr_session_bus(user_data, &packet); |
a803c0db | 751 | } |
4fe9a6da | 752 | free(ols->raw_sample_buf); |
a803c0db | 753 | |
06d64eb8 | 754 | serial_flush(fd); |
d02a535e | 755 | serial_close(fd); |
5a2326a7 | 756 | packet.type = SR_DF_END; |
a1bb33af | 757 | packet.length = 0; |
8a2efef2 | 758 | sr_session_bus(user_data, &packet); |
a1bb33af UH |
759 | } |
760 | ||
761 | return TRUE; | |
762 | } | |
763 | ||
a1bb33af UH |
764 | static int hw_start_acquisition(int device_index, gpointer session_device_id) |
765 | { | |
b9c735a2 UH |
766 | struct sr_datafeed_packet *packet; |
767 | struct sr_datafeed_header *header; | |
a00ba012 | 768 | struct sr_device_instance *sdi; |
4fe9a6da | 769 | struct ols_device *ols; |
a803c0db | 770 | uint32_t trigger_config[4]; |
a1bb33af | 771 | uint32_t data; |
6937bb75 BV |
772 | uint16_t readcount, delaycount; |
773 | uint8_t changrp_mask; | |
4fe9a6da | 774 | int i; |
a1bb33af | 775 | |
d32d961d | 776 | if (!(sdi = sr_get_device_instance(device_instances, device_index))) |
e46b8fb1 | 777 | return SR_ERR; |
4fe9a6da | 778 | ols = sdi->priv; |
a1bb33af | 779 | |
5a2326a7 | 780 | if (sdi->status != SR_ST_ACTIVE) |
e46b8fb1 | 781 | return SR_ERR; |
a1bb33af | 782 | |
4fe9a6da | 783 | readcount = ols->limit_samples / 4; |
a803c0db BV |
784 | |
785 | memset(trigger_config, 0, 16); | |
4fe9a6da BV |
786 | trigger_config[ols->num_stages - 1] |= 0x08; |
787 | if (ols->trigger_mask[0]) { | |
788 | delaycount = readcount * (1 - ols->capture_ratio / 100.0); | |
789 | ols->trigger_at = (readcount - delaycount) * 4 - ols->num_stages; | |
a803c0db | 790 | |
43fc7885 | 791 | if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_0, |
4fe9a6da | 792 | reverse32(ols->trigger_mask[0])) != SR_OK) |
e46b8fb1 | 793 | return SR_ERR; |
a803c0db | 794 | if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_0, |
4fe9a6da | 795 | reverse32(ols->trigger_value[0])) != SR_OK) |
e46b8fb1 | 796 | return SR_ERR; |
a803c0db | 797 | if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_0, |
e46b8fb1 UH |
798 | trigger_config[0]) != SR_OK) |
799 | return SR_ERR; | |
6937bb75 | 800 | |
a803c0db | 801 | if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_1, |
4fe9a6da | 802 | reverse32(ols->trigger_mask[1])) != SR_OK) |
e46b8fb1 | 803 | return SR_ERR; |
43fc7885 | 804 | if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_1, |
4fe9a6da | 805 | reverse32(ols->trigger_value[1])) != SR_OK) |
e46b8fb1 | 806 | return SR_ERR; |
a803c0db | 807 | if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_1, |
e46b8fb1 UH |
808 | trigger_config[1]) != SR_OK) |
809 | return SR_ERR; | |
6937bb75 | 810 | |
a803c0db | 811 | if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_2, |
4fe9a6da | 812 | reverse32(ols->trigger_mask[2])) != SR_OK) |
e46b8fb1 | 813 | return SR_ERR; |
a803c0db | 814 | if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_2, |
4fe9a6da | 815 | reverse32(ols->trigger_value[2])) != SR_OK) |
e46b8fb1 | 816 | return SR_ERR; |
43fc7885 | 817 | if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_2, |
e46b8fb1 UH |
818 | trigger_config[2]) != SR_OK) |
819 | return SR_ERR; | |
a803c0db BV |
820 | |
821 | if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_3, | |
4fe9a6da | 822 | reverse32(ols->trigger_mask[3])) != SR_OK) |
e46b8fb1 | 823 | return SR_ERR; |
a803c0db | 824 | if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_3, |
4fe9a6da | 825 | reverse32(ols->trigger_value[3])) != SR_OK) |
e46b8fb1 | 826 | return SR_ERR; |
43fc7885 | 827 | if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_3, |
e46b8fb1 UH |
828 | trigger_config[3]) != SR_OK) |
829 | return SR_ERR; | |
6937bb75 | 830 | } else { |
43fc7885 | 831 | if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_MASK_0, |
4fe9a6da | 832 | ols->trigger_mask[0]) != SR_OK) |
e46b8fb1 | 833 | return SR_ERR; |
43fc7885 | 834 | if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_VALUE_0, |
4fe9a6da | 835 | ols->trigger_value[0]) != SR_OK) |
e46b8fb1 | 836 | return SR_ERR; |
43fc7885 | 837 | if (send_longcommand(sdi->serial->fd, CMD_SET_TRIGGER_CONFIG_0, |
e46b8fb1 UH |
838 | 0x00000008) != SR_OK) |
839 | return SR_ERR; | |
a803c0db | 840 | delaycount = readcount; |
6937bb75 | 841 | } |
a1bb33af | 842 | |
b08024a8 UH |
843 | sr_info("ols: setting samplerate to %" PRIu64 " Hz (divider %u, " |
844 | "demux %s)", ols->cur_samplerate, ols->cur_samplerate_divider, | |
845 | ols->flag_reg & FLAG_DEMUX ? "on" : "off"); | |
4fe9a6da BV |
846 | if (send_longcommand(sdi->serial->fd, CMD_SET_DIVIDER, |
847 | reverse32(ols->cur_samplerate_divider)) != SR_OK) | |
848 | return SR_ERR; | |
a1bb33af | 849 | |
43fc7885 | 850 | /* Send sample limit and pre/post-trigger capture ratio. */ |
a803c0db BV |
851 | data = ((readcount - 1) & 0xffff) << 16; |
852 | data |= (delaycount - 1) & 0xffff; | |
e46b8fb1 UH |
853 | if (send_longcommand(sdi->serial->fd, CMD_CAPTURE_SIZE, reverse16(data)) != SR_OK) |
854 | return SR_ERR; | |
a1bb33af | 855 | |
43fc7885 UH |
856 | /* |
857 | * Enable/disable channel groups in the flag register according to the | |
a803c0db | 858 | * probe mask. |
6937bb75 BV |
859 | */ |
860 | changrp_mask = 0; | |
43fc7885 | 861 | for (i = 0; i < 4; i++) { |
4fe9a6da | 862 | if (ols->probe_mask & (0xff << (i * 8))) |
a803c0db | 863 | changrp_mask |= (1 << i); |
6937bb75 | 864 | } |
43fc7885 UH |
865 | |
866 | /* The flag register wants them here, and 1 means "disable channel". */ | |
4fe9a6da BV |
867 | ols->flag_reg |= ~(changrp_mask << 2) & 0x3c; |
868 | ols->flag_reg |= FLAG_FILTER; | |
869 | data = ols->flag_reg << 24; | |
e46b8fb1 UH |
870 | if (send_longcommand(sdi->serial->fd, CMD_SET_FLAGS, data) != SR_OK) |
871 | return SR_ERR; | |
a1bb33af | 872 | |
43fc7885 | 873 | /* Start acquisition on the device. */ |
e46b8fb1 UH |
874 | if (send_shortcommand(sdi->serial->fd, CMD_RUN) != SR_OK) |
875 | return SR_ERR; | |
a1bb33af | 876 | |
6f1be0a2 UH |
877 | sr_source_add(sdi->serial->fd, G_IO_IN, -1, receive_data, |
878 | session_device_id); | |
a1bb33af | 879 | |
43fc7885 | 880 | /* Send header packet to the session bus. */ |
b9c735a2 UH |
881 | packet = g_malloc(sizeof(struct sr_datafeed_packet)); |
882 | header = g_malloc(sizeof(struct sr_datafeed_header)); | |
43fc7885 | 883 | if (!packet || !header) |
e46b8fb1 | 884 | return SR_ERR; |
5a2326a7 | 885 | packet->type = SR_DF_HEADER; |
b9c735a2 | 886 | packet->length = sizeof(struct sr_datafeed_header); |
43fc7885 | 887 | packet->payload = (unsigned char *)header; |
a1bb33af UH |
888 | header->feed_version = 1; |
889 | gettimeofday(&header->starttime, NULL); | |
4fe9a6da | 890 | header->samplerate = ols->cur_samplerate; |
5a2326a7 | 891 | header->protocol_id = SR_PROTO_RAW; |
c2616fb9 DR |
892 | header->num_logic_probes = NUM_PROBES; |
893 | header->num_analog_probes = 0; | |
8a2efef2 | 894 | sr_session_bus(session_device_id, packet); |
a1bb33af UH |
895 | g_free(header); |
896 | g_free(packet); | |
897 | ||
e46b8fb1 | 898 | return SR_OK; |
a1bb33af UH |
899 | } |
900 | ||
a1bb33af UH |
901 | static void hw_stop_acquisition(int device_index, gpointer session_device_id) |
902 | { | |
b9c735a2 | 903 | struct sr_datafeed_packet packet; |
a1bb33af | 904 | |
17e1afcb | 905 | /* Avoid compiler warnings. */ |
afc8e4de UH |
906 | device_index = device_index; |
907 | ||
5a2326a7 | 908 | packet.type = SR_DF_END; |
a1bb33af | 909 | packet.length = 0; |
8a2efef2 | 910 | sr_session_bus(session_device_id, &packet); |
a1bb33af UH |
911 | } |
912 | ||
5c2d46d1 | 913 | struct sr_device_plugin ols_plugin_info = { |
e6ac9ac8 | 914 | "ols", |
9f8274a5 | 915 | "Openbench Logic Sniffer", |
a1bb33af UH |
916 | 1, |
917 | hw_init, | |
918 | hw_cleanup, | |
a1bb33af UH |
919 | hw_opendev, |
920 | hw_closedev, | |
921 | hw_get_device_info, | |
922 | hw_get_status, | |
923 | hw_get_capabilities, | |
924 | hw_set_configuration, | |
925 | hw_start_acquisition, | |
43fc7885 | 926 | hw_stop_acquisition, |
a1bb33af | 927 | }; |