2 * This file is part of the libsigrok project.
4 * Copyright (C) 2016 Eva Kissling <eva.kissling@bluewin.ch>
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.
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.
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/>.
23 #define _WIN32_WINNT 0x0501
32 #include <sys/socket.h>
33 #include <netinet/in.h>
34 #include <arpa/inet.h>
41 #include <sys/ioctl.h>
45 /* Top-level command opcodes */
46 #define CMD_SET_TRIGGER 0x00
47 #define CMD_CFG_TRIGGER 0xF0
48 #define CMD_CFG_LA 0x0F
49 #define CMD_START 0xFE
50 #define CMD_RESET 0xEE
52 #define CMD_GET_BUS_WIDTHS 0xAA
53 #define CMD_GET_LA_ID 0xBB
54 #define CMD_ESCAPE 0x55
56 /* Trigger subfunction command opcodes */
57 #define CMD_TRIG_MASKS 0xF1
58 #define CMD_TRIG_MASK 0xF3
59 #define CMD_TRIG_VALUE 0xF7
61 #define CMD_TRIG_MASKS_LAST 0xF9
62 #define CMD_TRIG_MASK_LAST 0xFB
63 #define CMD_TRIG_VALUE_LAST 0xFF
65 #define CMD_TRIG_SELECT_EDGE_MASK 0xF5
66 #define CMD_TRIG_SET_EDGE_MASK 0xF6
68 /* LA subfunction command opcodes */
69 #define CMD_LA_DELAY 0x1F
71 SR_PRIV gboolean data_available(struct ipdbg_la_tcp *tcp)
74 ioctlsocket(tcp->socket, FIONREAD, &bytes_available);
78 if (ioctl(tcp->socket, FIONREAD, &status) < 0) { // TIOCMGET
79 sr_err("FIONREAD failed: %s\n", g_strerror(errno));
83 return (status < 1) ? FALSE : TRUE;
87 SR_PRIV struct ipdbg_la_tcp *ipdbg_la_tcp_new(void)
89 struct ipdbg_la_tcp *tcp;
91 tcp = g_malloc0(sizeof(struct ipdbg_la_tcp));
99 SR_PRIV void ipdbg_la_tcp_free(struct ipdbg_la_tcp *tcp)
101 g_free(tcp->address);
105 SR_PRIV int ipdbg_la_tcp_open(struct ipdbg_la_tcp *tcp)
107 struct addrinfo hints;
108 struct addrinfo *results, *res;
111 memset(&hints, 0, sizeof(hints));
112 hints.ai_family = AF_UNSPEC;
113 hints.ai_socktype = SOCK_STREAM;
114 hints.ai_protocol = IPPROTO_TCP;
116 err = getaddrinfo(tcp->address, tcp->port, &hints, &results);
119 sr_err("Address lookup failed: %s:%s: %s", tcp->address,
120 tcp->port, gai_strerror(err));
124 for (res = results; res; res = res->ai_next) {
125 if ((tcp->socket = socket(res->ai_family, res->ai_socktype,
126 res->ai_protocol)) < 0)
128 if (connect(tcp->socket, res->ai_addr, res->ai_addrlen) != 0) {
136 freeaddrinfo(results);
138 if (tcp->socket < 0) {
139 sr_err("Failed to connect to %s:%s: %s", tcp->address, tcp->port,
147 SR_PRIV int ipdbg_la_tcp_close(struct ipdbg_la_tcp *tcp)
151 if (close(tcp->socket) < 0)
159 SR_PRIV int ipdbg_la_tcp_send(struct ipdbg_la_tcp *tcp,
160 const uint8_t *buf, size_t len)
163 out = send(tcp->socket, buf, len, 0);
166 sr_err("Send error: %s", g_strerror(errno));
171 sr_dbg("Only sent %d/%d bytes of data.", out, (int)len);
176 SR_PRIV int ipdbg_la_tcp_receive_blocking(struct ipdbg_la_tcp *tcp,
177 uint8_t *buf, int bufsize)
182 /* Timeout after 500ms of not receiving data */
183 while ((received < bufsize) && (error_count < 500)) {
184 if (ipdbg_la_tcp_receive(tcp, buf) > 0) {
189 g_usleep(1000); /* Sleep for 1ms */
196 SR_PRIV int ipdbg_la_tcp_receive(struct ipdbg_la_tcp *tcp,
201 if (data_available(tcp)) {
202 while (received < 1) {
203 int len = recv(tcp->socket, buf, 1, 0);
206 sr_err("Receive error: %s", g_strerror(errno));
217 SR_PRIV int ipdbg_la_convert_trigger(const struct sr_dev_inst *sdi)
219 struct dev_context *devc;
220 struct sr_trigger *trigger;
221 struct sr_trigger_stage *stage;
222 struct sr_trigger_match *match;
227 devc->num_stages = 0;
228 devc->num_transfers = 0;
229 devc->raw_sample_buf = NULL;
231 for (uint64_t i = 0; i < devc->DATA_WIDTH_BYTES; i++) {
232 devc->trigger_mask[i] = 0;
233 devc->trigger_value[i] = 0;
234 devc->trigger_mask_last[i] = 0;
235 devc->trigger_value_last[i] = 0;
236 devc->trigger_edge_mask[i] = 0;
239 if (!(trigger = sr_session_trigger_get(sdi->session)))
242 for (l = trigger->stages; l; l = l->next) {
244 for (m = stage->matches; m; m = m->next) {
246 int byte_idx = match->channel->index / 8;
247 uint8_t match_bit = 1 << (match->channel->index % 8);
249 if (!match->channel->enabled)
250 /* Ignore disabled channels with a trigger. */
253 if (match->match == SR_TRIGGER_ONE) {
254 devc->trigger_value[byte_idx] |= match_bit;
255 devc->trigger_mask[byte_idx] |= match_bit;
256 devc->trigger_mask_last[byte_idx] &= ~match_bit;
257 devc->trigger_edge_mask[byte_idx] &= ~match_bit;
258 } else if (match->match == SR_TRIGGER_ZERO) {
259 devc->trigger_value[byte_idx] &= ~match_bit;
260 devc->trigger_mask[byte_idx] |= match_bit;
261 devc->trigger_mask_last[byte_idx] &= ~match_bit;
262 devc->trigger_edge_mask[byte_idx] &= ~match_bit;
263 } else if (match->match == SR_TRIGGER_RISING) {
264 devc->trigger_value[byte_idx] |= match_bit;
265 devc->trigger_value_last[byte_idx] &=
267 devc->trigger_mask[byte_idx] |= match_bit;
268 devc->trigger_mask_last[byte_idx] |= match_bit;
269 devc->trigger_edge_mask[byte_idx] &= ~match_bit;
270 } else if (match->match == SR_TRIGGER_FALLING) {
271 devc->trigger_value[byte_idx] &= ~match_bit;
272 devc->trigger_value_last[byte_idx] |= match_bit;
273 devc->trigger_mask[byte_idx] |= match_bit;
274 devc->trigger_mask_last[byte_idx] |= match_bit;
275 devc->trigger_edge_mask[byte_idx] &= ~match_bit;
276 } else if (match->match == SR_TRIGGER_EDGE) {
277 devc->trigger_mask[byte_idx] &= ~match_bit;
278 devc->trigger_mask_last[byte_idx] &= ~match_bit;
279 devc->trigger_edge_mask[byte_idx] |= match_bit;
287 SR_PRIV int ipdbg_la_receive_data(int fd, int revents, void *cb_data)
289 const struct sr_dev_inst *sdi;
290 struct dev_context *devc;
299 if (!(devc = sdi->priv))
302 struct ipdbg_la_tcp *tcp = sdi->conn;
303 struct sr_datafeed_packet packet;
304 struct sr_datafeed_logic logic;
306 if (!devc->raw_sample_buf) {
307 devc->raw_sample_buf =
308 g_try_malloc(devc->limit_samples * devc->DATA_WIDTH_BYTES);
309 if (!devc->raw_sample_buf) {
310 sr_err("Sample buffer malloc failed.");
315 if (devc->num_transfers <
316 (devc->limit_samples_max * devc->DATA_WIDTH_BYTES)) {
319 if (ipdbg_la_tcp_receive(tcp, &byte) == 1) {
320 if (devc->num_transfers <
321 (devc->limit_samples * devc->DATA_WIDTH_BYTES))
322 devc->raw_sample_buf[devc->num_transfers] = byte;
324 devc->num_transfers++;
327 if (devc->delay_value > 0) {
328 /* There are pre-trigger samples, send those first. */
329 packet.type = SR_DF_LOGIC;
330 packet.payload = &logic;
331 logic.length = devc->delay_value * devc->DATA_WIDTH_BYTES;
332 logic.unitsize = devc->DATA_WIDTH_BYTES;
333 logic.data = devc->raw_sample_buf;
334 sr_session_send(cb_data, &packet);
337 /* Send the trigger. */
338 packet.type = SR_DF_TRIGGER;
339 sr_session_send(cb_data, &packet);
341 /* Send post-trigger samples. */
342 packet.type = SR_DF_LOGIC;
343 packet.payload = &logic;
344 logic.length = (devc->limit_samples - devc->delay_value) *
345 devc->DATA_WIDTH_BYTES;
346 logic.unitsize = devc->DATA_WIDTH_BYTES;
347 logic.data = devc->raw_sample_buf +
348 (devc->delay_value * devc->DATA_WIDTH_BYTES);
349 sr_session_send(cb_data, &packet);
351 g_free(devc->raw_sample_buf);
352 devc->raw_sample_buf = NULL;
354 ipdbg_la_abort_acquisition(sdi);
360 SR_PRIV int ipdbg_la_send_delay(struct dev_context *devc,
361 struct ipdbg_la_tcp *tcp)
363 devc->delay_value = (devc->limit_samples / 100.0) * devc->capture_ratio;
367 ipdbg_la_tcp_send(tcp, &buf, 1);
369 ipdbg_la_tcp_send(tcp, &buf, 1);
371 uint8_t delay_buf[4] = { devc->delay_value & 0x000000ff,
372 (devc->delay_value >> 8) & 0x000000ff,
373 (devc->delay_value >> 16) & 0x000000ff,
374 (devc->delay_value >> 24) & 0x000000ff
377 for (uint64_t i = 0; i < devc->ADDR_WIDTH_BYTES; i++)
378 send_escaping(tcp, &(delay_buf[devc->ADDR_WIDTH_BYTES - 1 - i]), 1);
383 SR_PRIV int ipdbg_la_send_trigger(struct dev_context *devc,
384 struct ipdbg_la_tcp *tcp)
389 buf = CMD_CFG_TRIGGER;
390 ipdbg_la_tcp_send(tcp, &buf, 1);
391 buf = CMD_TRIG_MASKS;
392 ipdbg_la_tcp_send(tcp, &buf, 1);
394 ipdbg_la_tcp_send(tcp, &buf, 1);
396 for (size_t i = 0; i < devc->DATA_WIDTH_BYTES; i++)
398 devc->trigger_mask + devc->DATA_WIDTH_BYTES - 1 - i, 1);
401 buf = CMD_CFG_TRIGGER;
402 ipdbg_la_tcp_send(tcp, &buf, 1);
403 buf = CMD_TRIG_MASKS;
404 ipdbg_la_tcp_send(tcp, &buf, 1);
405 buf = CMD_TRIG_VALUE;
406 ipdbg_la_tcp_send(tcp, &buf, 1);
408 for (size_t i = 0; i < devc->DATA_WIDTH_BYTES; i++)
410 devc->trigger_value + devc->DATA_WIDTH_BYTES - 1 - i, 1);
413 buf = CMD_CFG_TRIGGER;
414 ipdbg_la_tcp_send(tcp, &buf, 1);
415 buf = CMD_TRIG_MASKS_LAST;
416 ipdbg_la_tcp_send(tcp, &buf, 1);
417 buf = CMD_TRIG_MASK_LAST;
418 ipdbg_la_tcp_send(tcp, &buf, 1);
420 for (size_t i = 0; i < devc->DATA_WIDTH_BYTES; i++)
422 devc->trigger_mask_last + devc->DATA_WIDTH_BYTES - 1 - i, 1);
425 buf = CMD_CFG_TRIGGER;
426 ipdbg_la_tcp_send(tcp, &buf, 1);
427 buf = CMD_TRIG_MASKS_LAST;
428 ipdbg_la_tcp_send(tcp, &buf, 1);
429 buf = CMD_TRIG_VALUE_LAST;
430 ipdbg_la_tcp_send(tcp, &buf, 1);
432 for (size_t i = 0; i < devc->DATA_WIDTH_BYTES; i++)
434 devc->trigger_value_last + devc->DATA_WIDTH_BYTES - 1 - i, 1);
437 buf = CMD_CFG_TRIGGER;
438 ipdbg_la_tcp_send(tcp, &buf, 1);
439 buf = CMD_TRIG_SELECT_EDGE_MASK;
440 ipdbg_la_tcp_send(tcp, &buf, 1);
441 buf = CMD_TRIG_SET_EDGE_MASK;
442 ipdbg_la_tcp_send(tcp, &buf, 1);
444 for (size_t i = 0; i < devc->DATA_WIDTH_BYTES; i++)
446 devc->trigger_edge_mask + devc->DATA_WIDTH_BYTES - 1 - i, 1);
451 SR_PRIV int send_escaping(struct ipdbg_la_tcp *tcp, uint8_t *dataToSend,
454 uint8_t escape = CMD_ESCAPE;
457 uint8_t payload = *dataToSend++;
459 if (payload == CMD_RESET)
460 if (ipdbg_la_tcp_send(tcp, &escape, 1) != SR_OK)
461 sr_warn("Couldn't send escape");
463 if (payload == CMD_ESCAPE)
464 if (ipdbg_la_tcp_send(tcp, &escape, 1) != SR_OK)
465 sr_warn("Couldn't send escape");
467 if (ipdbg_la_tcp_send(tcp, &payload, 1) != SR_OK)
468 sr_warn("Couldn't send data");
474 SR_PRIV void ipdbg_la_get_addrwidth_and_datawidth(
475 struct ipdbg_la_tcp *tcp, struct dev_context *devc)
478 uint8_t read_cmd = CMD_GET_BUS_WIDTHS;
480 if (ipdbg_la_tcp_send(tcp, &read_cmd, 1) != SR_OK)
481 sr_warn("Can't send read command");
483 if (ipdbg_la_tcp_receive_blocking(tcp, buf, 8) != 8)
484 sr_warn("Can't get address and data width from device");
486 devc->DATA_WIDTH = buf[0] & 0x000000FF;
487 devc->DATA_WIDTH |= (buf[1] << 8) & 0x0000FF00;
488 devc->DATA_WIDTH |= (buf[2] << 16) & 0x00FF0000;
489 devc->DATA_WIDTH |= (buf[3] << 24) & 0xFF000000;
491 devc->ADDR_WIDTH = buf[4] & 0x000000FF;
492 devc->ADDR_WIDTH |= (buf[5] << 8) & 0x0000FF00;
493 devc->ADDR_WIDTH |= (buf[6] << 16) & 0x00FF0000;
494 devc->ADDR_WIDTH |= (buf[7] << 24) & 0xFF000000;
496 uint8_t HOST_WORD_SIZE = 8;
498 devc->DATA_WIDTH_BYTES =
499 (devc->DATA_WIDTH + HOST_WORD_SIZE - 1) / HOST_WORD_SIZE;
500 devc->ADDR_WIDTH_BYTES =
501 (devc->ADDR_WIDTH + HOST_WORD_SIZE - 1) / HOST_WORD_SIZE;
503 devc->limit_samples_max = (0x01 << devc->ADDR_WIDTH);
504 devc->limit_samples = devc->limit_samples_max;
506 devc->trigger_mask = g_malloc0(devc->DATA_WIDTH_BYTES);
507 devc->trigger_value = g_malloc0(devc->DATA_WIDTH_BYTES);
508 devc->trigger_mask_last = g_malloc0(devc->DATA_WIDTH_BYTES);
509 devc->trigger_value_last = g_malloc0(devc->DATA_WIDTH_BYTES);
510 devc->trigger_edge_mask = g_malloc0(devc->DATA_WIDTH_BYTES);
513 SR_PRIV struct dev_context *ipdbg_la_dev_new(void)
515 struct dev_context *devc;
517 devc = g_malloc0(sizeof(struct dev_context));
518 devc->capture_ratio = 50;
523 SR_PRIV int ipdbg_la_send_reset(struct ipdbg_la_tcp *tcp)
525 uint8_t buf = CMD_RESET;
526 if (ipdbg_la_tcp_send(tcp, &buf, 1) != SR_OK)
527 sr_warn("Couldn't send reset");
532 SR_PRIV int ipdbg_la_request_id(struct ipdbg_la_tcp *tcp)
534 uint8_t buf = CMD_GET_LA_ID;
535 if (ipdbg_la_tcp_send(tcp, &buf, 1) != SR_OK)
536 sr_warn("Couldn't send ID request");
539 if (ipdbg_la_tcp_receive_blocking(tcp, (uint8_t*)id, 4) != 4) {
540 sr_err("Couldn't read device ID");
544 if (strncmp(id, "IDBG", 4)) {
545 sr_err("Invalid device ID: expected 'IDBG', got '%c%c%c%c'.",
546 id[0], id[1], id[2], id[3]);
553 SR_PRIV void ipdbg_la_abort_acquisition(const struct sr_dev_inst *sdi)
555 struct ipdbg_la_tcp *tcp = sdi->conn;
557 sr_session_source_remove(sdi->session, tcp->socket);
559 std_session_send_df_end(sdi);
562 SR_PRIV int ipdbg_la_send_start(struct ipdbg_la_tcp *tcp)
564 uint8_t buf = CMD_START;
566 if (ipdbg_la_tcp_send(tcp, &buf, 1) != SR_OK)
567 sr_warn("Couldn't send start");