2 * This file is part of the libsigrok project.
4 * Copyright (C) 2016 danselmi <da@da>
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 int 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", strerror(errno));
83 return (status < 1) ? 0 : 1;
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));
100 SR_PRIV void ipdbg_la_tcp_free(struct ipdbg_la_tcp *tcp)
102 g_free(tcp->address);
106 SR_PRIV int ipdbg_la_tcp_open(struct ipdbg_la_tcp *tcp)
108 struct addrinfo hints;
109 struct addrinfo *results, *res;
112 memset(&hints, 0, sizeof(hints));
113 hints.ai_family = AF_UNSPEC;
114 hints.ai_socktype = SOCK_STREAM;
115 hints.ai_protocol = IPPROTO_TCP;
117 err = getaddrinfo(tcp->address, tcp->port, &hints, &results);
120 sr_err("Address lookup failed: %s:%s: %s", tcp->address,
121 tcp->port, gai_strerror(err));
125 for (res = results; res; res = res->ai_next) {
126 if ((tcp->socket = socket(res->ai_family, res->ai_socktype,
127 res->ai_protocol)) < 0)
129 if (connect(tcp->socket, res->ai_addr, res->ai_addrlen) != 0) {
137 freeaddrinfo(results);
139 if (tcp->socket < 0) {
140 sr_err("Failed to connect to %s:%s: %s", tcp->address, tcp->port,
148 SR_PRIV int ipdbg_la_tcp_close(struct ipdbg_la_tcp *tcp)
152 if (close(tcp->socket) < 0)
160 SR_PRIV int ipdbg_la_tcp_send(struct ipdbg_la_tcp *tcp,
161 const uint8_t *buf, size_t len)
164 out = send(tcp->socket, (char*)buf, len, 0);
167 sr_err("Send error: %s", g_strerror(errno));
172 sr_dbg("Only sent %d/%d bytes of data.", out, (int)len);
177 SR_PRIV int ipdbg_la_tcp_receive_blocking(struct ipdbg_la_tcp *tcp,
178 uint8_t *buf, int bufsize)
183 /* Timeout after 500ms of not receiving data */
184 while ((received < bufsize) && (error_count < 500)) {
185 if (ipdbg_la_tcp_receive(tcp, buf) > 0) {
190 g_usleep(1000); /* Sleep for 1ms */
197 SR_PRIV int ipdbg_la_tcp_receive(struct ipdbg_la_tcp *tcp,
202 if (data_available(tcp)) {
203 while (received < 1) {
204 int len = recv(tcp->socket, buf, 1, 0);
207 sr_err("Receive error: %s", g_strerror(errno));
218 SR_PRIV int ipdbg_la_convert_trigger(const struct sr_dev_inst *sdi)
220 struct ipdbg_la_dev_context *devc;
221 struct sr_trigger *trigger;
222 struct sr_trigger_stage *stage;
223 struct sr_trigger_match *match;
228 devc->num_stages = 0;
229 devc->num_transfers = 0;
230 devc->raw_sample_buf = NULL;
232 for (uint64_t i = 0; i < devc->DATA_WIDTH_BYTES; i++) {
233 devc->trigger_mask[i] = 0;
234 devc->trigger_value[i] = 0;
235 devc->trigger_mask_last[i] = 0;
236 devc->trigger_value_last[i] = 0;
237 devc->trigger_edge_mask[i] = 0;
240 if (!(trigger = sr_session_trigger_get(sdi->session)))
243 for (l = trigger->stages; l; l = l->next) {
245 for (m = stage->matches; m; m = m->next) {
247 int byte_idx = match->channel->index / 8;
248 uint8_t match_bit = 1 << (match->channel->index % 8);
250 if (!match->channel->enabled)
251 /* Ignore disabled channels with a trigger. */
254 if (match->match == SR_TRIGGER_ONE) {
255 devc->trigger_value[byte_idx] |= match_bit;
256 devc->trigger_mask[byte_idx] |= match_bit;
257 devc->trigger_mask_last[byte_idx] &= ~match_bit;
258 devc->trigger_edge_mask[byte_idx] &= ~match_bit;
259 } else if (match->match == SR_TRIGGER_ZERO) {
260 devc->trigger_value[byte_idx] &= ~match_bit;
261 devc->trigger_mask[byte_idx] |= match_bit;
262 devc->trigger_mask_last[byte_idx] &= ~match_bit;
263 devc->trigger_edge_mask[byte_idx] &= ~match_bit;
264 } else if (match->match == SR_TRIGGER_RISING) {
265 devc->trigger_value[byte_idx] |= match_bit;
266 devc->trigger_value_last[byte_idx] &=
268 devc->trigger_mask[byte_idx] |= match_bit;
269 devc->trigger_mask_last[byte_idx] |= match_bit;
270 devc->trigger_edge_mask[byte_idx] &= ~match_bit;
271 } else if (match->match == SR_TRIGGER_FALLING) {
272 devc->trigger_value[byte_idx] &= ~match_bit;
273 devc->trigger_value_last[byte_idx] |= match_bit;
274 devc->trigger_mask[byte_idx] |= match_bit;
275 devc->trigger_mask_last[byte_idx] |= match_bit;
276 devc->trigger_edge_mask[byte_idx] &= ~match_bit;
277 } else if (match->match == SR_TRIGGER_EDGE) {
278 devc->trigger_mask[byte_idx] &= ~match_bit;
279 devc->trigger_mask_last[byte_idx] &= ~match_bit;
280 devc->trigger_edge_mask[byte_idx] |= match_bit;
288 SR_PRIV int ipdbg_la_receive_data(int fd, int revents, void *cb_data)
290 const struct sr_dev_inst *sdi;
291 struct ipdbg_la_dev_context *devc;
296 sdi = (const struct sr_dev_inst *)cb_data;
300 if (!(devc = sdi->priv))
303 struct ipdbg_la_tcp *tcp = sdi->conn;
304 struct sr_datafeed_packet packet;
305 struct sr_datafeed_logic logic;
307 if (!devc->raw_sample_buf) {
308 devc->raw_sample_buf =
309 g_try_malloc(devc->limit_samples * devc->DATA_WIDTH_BYTES);
310 if (!devc->raw_sample_buf) {
311 sr_warn("Sample buffer malloc failed.");
316 if (devc->num_transfers <
317 (devc->limit_samples_max * devc->DATA_WIDTH_BYTES)) {
320 if (ipdbg_la_tcp_receive(tcp, &byte) == 1) {
321 if (devc->num_transfers <
322 (devc->limit_samples * devc->DATA_WIDTH_BYTES))
323 devc->raw_sample_buf[devc->num_transfers] = byte;
325 devc->num_transfers++;
328 if (devc->delay_value > 0) {
329 /* There are pre-trigger samples, send those first. */
330 packet.type = SR_DF_LOGIC;
331 packet.payload = &logic;
332 logic.length = devc->delay_value * devc->DATA_WIDTH_BYTES;
333 logic.unitsize = devc->DATA_WIDTH_BYTES;
334 logic.data = devc->raw_sample_buf;
335 sr_session_send(cb_data, &packet);
338 /* Send the trigger. */
339 packet.type = SR_DF_TRIGGER;
340 sr_session_send(cb_data, &packet);
342 /* Send post-trigger samples. */
343 packet.type = SR_DF_LOGIC;
344 packet.payload = &logic;
345 logic.length = (devc->limit_samples - devc->delay_value) *
346 devc->DATA_WIDTH_BYTES;
347 logic.unitsize = devc->DATA_WIDTH_BYTES;
348 logic.data = devc->raw_sample_buf +
349 (devc->delay_value * devc->DATA_WIDTH_BYTES);
350 sr_session_send(cb_data, &packet);
352 g_free(devc->raw_sample_buf);
353 devc->raw_sample_buf = NULL;
355 ipdbg_la_abort_acquisition(sdi);
361 SR_PRIV int ipdbg_la_send_delay(struct ipdbg_la_dev_context *devc,
362 struct ipdbg_la_tcp *tcp)
364 devc->delay_value = (devc->limit_samples / 100.0) * devc->capture_ratio;
368 ipdbg_la_tcp_send(tcp, &buf, 1);
370 ipdbg_la_tcp_send(tcp, &buf, 1);
372 uint8_t delay_buf[4] = { devc->delay_value & 0x000000ff,
373 (devc->delay_value >> 8) & 0x000000ff,
374 (devc->delay_value >> 16) & 0x000000ff,
375 (devc->delay_value >> 24) & 0x000000ff
378 for (uint64_t i = 0; i < devc->ADDR_WIDTH_BYTES; i++)
379 send_escaping(tcp, &(delay_buf[devc->ADDR_WIDTH_BYTES - 1 - i]), 1);
384 SR_PRIV int ipdbg_la_send_trigger(struct ipdbg_la_dev_context *devc,
385 struct ipdbg_la_tcp *tcp)
390 buf = CMD_CFG_TRIGGER;
391 ipdbg_la_tcp_send(tcp, &buf, 1);
392 buf = CMD_TRIG_MASKS;
393 ipdbg_la_tcp_send(tcp, &buf, 1);
395 ipdbg_la_tcp_send(tcp, &buf, 1);
397 for (size_t i = 0; i < devc->DATA_WIDTH_BYTES; i++)
399 devc->trigger_mask + devc->DATA_WIDTH_BYTES - 1 - i, 1);
402 buf = CMD_CFG_TRIGGER;
403 ipdbg_la_tcp_send(tcp, &buf, 1);
404 buf = CMD_TRIG_MASKS;
405 ipdbg_la_tcp_send(tcp, &buf, 1);
406 buf = CMD_TRIG_VALUE;
407 ipdbg_la_tcp_send(tcp, &buf, 1);
409 for (size_t i = 0; i < devc->DATA_WIDTH_BYTES; i++)
411 devc->trigger_value + devc->DATA_WIDTH_BYTES - 1 - i, 1);
414 buf = CMD_CFG_TRIGGER;
415 ipdbg_la_tcp_send(tcp, &buf, 1);
416 buf = CMD_TRIG_MASKS_LAST;
417 ipdbg_la_tcp_send(tcp, &buf, 1);
418 buf = CMD_TRIG_MASK_LAST;
419 ipdbg_la_tcp_send(tcp, &buf, 1);
421 for (size_t i = 0; i < devc->DATA_WIDTH_BYTES; i++)
423 devc->trigger_mask_last + devc->DATA_WIDTH_BYTES - 1 - i, 1);
426 buf = CMD_CFG_TRIGGER;
427 ipdbg_la_tcp_send(tcp, &buf, 1);
428 buf = CMD_TRIG_MASKS_LAST;
429 ipdbg_la_tcp_send(tcp, &buf, 1);
430 buf = CMD_TRIG_VALUE_LAST;
431 ipdbg_la_tcp_send(tcp, &buf, 1);
433 for (size_t i = 0; i < devc->DATA_WIDTH_BYTES; i++)
435 devc->trigger_value_last + devc->DATA_WIDTH_BYTES - 1 - i, 1);
438 buf = CMD_CFG_TRIGGER;
439 ipdbg_la_tcp_send(tcp, &buf, 1);
440 buf = CMD_TRIG_SELECT_EDGE_MASK;
441 ipdbg_la_tcp_send(tcp, &buf, 1);
442 buf = CMD_TRIG_SET_EDGE_MASK;
443 ipdbg_la_tcp_send(tcp, &buf, 1);
445 for (size_t i = 0; i < devc->DATA_WIDTH_BYTES; i++)
447 devc->trigger_edge_mask + devc->DATA_WIDTH_BYTES - 1 - i, 1);
452 SR_PRIV int send_escaping(struct ipdbg_la_tcp *tcp, uint8_t *dataToSend,
455 uint8_t escape = CMD_ESCAPE;
458 uint8_t payload = *dataToSend++;
460 if (payload == (uint8_t) CMD_RESET)
461 if (ipdbg_la_tcp_send(tcp, &escape, 1) != SR_OK)
462 sr_warn("Couldn't send escape");
464 if (payload == (uint8_t) CMD_ESCAPE)
465 if (ipdbg_la_tcp_send(tcp, &escape, 1) != SR_OK)
466 sr_warn("Couldn't send escape");
468 if (ipdbg_la_tcp_send(tcp, &payload, 1) != SR_OK)
469 sr_warn("Couldn't send data");
475 SR_PRIV void ipdbg_la_get_addrwidth_and_datawidth(
476 struct ipdbg_la_tcp *tcp, struct ipdbg_la_dev_context *devc)
479 uint8_t read_cmd = CMD_GET_BUS_WIDTHS;
481 if (ipdbg_la_tcp_send(tcp, &read_cmd, 1) != SR_OK)
482 sr_warn("Can't send read command");
484 if (ipdbg_la_tcp_receive_blocking(tcp, buf, 8) != 8)
485 sr_warn("Can't get address and data width from device");
487 devc->DATA_WIDTH = buf[0] & 0x000000FF;
488 devc->DATA_WIDTH |= (buf[1] << 8) & 0x0000FF00;
489 devc->DATA_WIDTH |= (buf[2] << 16) & 0x00FF0000;
490 devc->DATA_WIDTH |= (buf[3] << 24) & 0xFF000000;
492 devc->ADDR_WIDTH = buf[4] & 0x000000FF;
493 devc->ADDR_WIDTH |= (buf[5] << 8) & 0x0000FF00;
494 devc->ADDR_WIDTH |= (buf[6] << 16) & 0x00FF0000;
495 devc->ADDR_WIDTH |= (buf[7] << 24) & 0xFF000000;
497 uint8_t HOST_WORD_SIZE = 8;
499 devc->DATA_WIDTH_BYTES =
500 (devc->DATA_WIDTH + HOST_WORD_SIZE - 1) / HOST_WORD_SIZE;
501 devc->ADDR_WIDTH_BYTES =
502 (devc->ADDR_WIDTH + HOST_WORD_SIZE - 1) / HOST_WORD_SIZE;
504 devc->limit_samples_max = (0x01 << devc->ADDR_WIDTH);
505 devc->limit_samples = devc->limit_samples_max;
507 devc->trigger_mask = g_malloc0(devc->DATA_WIDTH_BYTES);
508 devc->trigger_value = g_malloc0(devc->DATA_WIDTH_BYTES);
509 devc->trigger_mask_last = g_malloc0(devc->DATA_WIDTH_BYTES);
510 devc->trigger_value_last = g_malloc0(devc->DATA_WIDTH_BYTES);
511 devc->trigger_edge_mask = g_malloc0(devc->DATA_WIDTH_BYTES);
514 SR_PRIV struct ipdbg_la_dev_context *ipdbg_la_dev_new(void)
516 struct ipdbg_la_dev_context *devc;
518 devc = g_malloc0(sizeof(struct ipdbg_la_dev_context));
519 devc->capture_ratio = 50;
524 SR_PRIV int ipdbg_la_send_reset(struct ipdbg_la_tcp *tcp)
526 uint8_t buf = CMD_RESET;
527 if (ipdbg_la_tcp_send(tcp, &buf, 1) != SR_OK)
528 sr_warn("Couldn't send reset");
533 SR_PRIV int ipdbg_la_request_id(struct ipdbg_la_tcp *tcp)
535 uint8_t buf = CMD_GET_LA_ID;
536 if (ipdbg_la_tcp_send(tcp, &buf, 1) != SR_OK)
537 sr_warn("Couldn't send ID request");
540 if (ipdbg_la_tcp_receive_blocking(tcp, (uint8_t*)id, 4) != 4) {
541 sr_err("Couldn't read device ID");
545 if (strncmp(id, "IDBG", 4)) {
546 sr_err("Invalid device ID: expected 'IDBG', got '%c%c%c%c'.",
547 id[0], id[1], id[2], id[3]);
554 SR_PRIV void ipdbg_la_abort_acquisition(const struct sr_dev_inst *sdi)
556 struct ipdbg_la_tcp *tcp = sdi->conn;
558 sr_session_source_remove(sdi->session, tcp->socket);
560 std_session_send_df_end(sdi);
563 SR_PRIV int ipdbg_la_send_start(struct ipdbg_la_tcp *tcp)
565 uint8_t buf = CMD_START;
567 if (ipdbg_la_tcp_send(tcp, &buf, 1) != SR_OK)
568 sr_warn("Couldn't send start");