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>
36 #include <sys/ioctl.h>
44 /* Top-level command opcodes */
45 #define CMD_SET_TRIGGER 0x00
46 #define CMD_CFG_TRIGGER 0xF0
47 #define CMD_CFG_LA 0x0F
48 #define CMD_START 0xFE
49 #define CMD_RESET 0xEE
51 #define CMD_GET_BUS_WIDTHS 0xAA
52 #define CMD_GET_LA_ID 0xBB
53 #define CMD_ESCAPE 0x55
55 /* Trigger subfunction command opcodes */
56 #define CMD_TRIG_MASKS 0xF1
57 #define CMD_TRIG_MASK 0xF3
58 #define CMD_TRIG_VALUE 0xF7
60 #define CMD_TRIG_MASKS_LAST 0xF9
61 #define CMD_TRIG_MASK_LAST 0xFB
62 #define CMD_TRIG_VALUE_LAST 0xFF
64 #define CMD_TRIG_SELECT_EDGE_MASK 0xF5
65 #define CMD_TRIG_SET_EDGE_MASK 0xF6
67 /* LA subfunction command opcodes */
68 #define CMD_LA_DELAY 0x1F
70 static gboolean data_available(struct ipdbg_la_tcp *tcp)
73 u_long bytes_available;
74 ioctlsocket(tcp->socket, FIONREAD, &bytes_available);
75 return (bytes_available > 0);
79 if (ioctl(tcp->socket, FIONREAD, &status) < 0) { // TIOCMGET
80 sr_err("FIONREAD failed: %s\n", g_strerror(errno));
84 return (status < 1) ? FALSE : TRUE;
88 SR_PRIV struct ipdbg_la_tcp *ipdbg_la_tcp_new(void)
90 struct ipdbg_la_tcp *tcp;
92 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 static int tcp_send(struct ipdbg_la_tcp *tcp, const uint8_t *buf, size_t len)
163 out = send(tcp->socket, (const char *)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 static int 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, (char *)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 static int send_escaping(struct ipdbg_la_tcp *tcp, uint8_t *data_to_send,
363 uint8_t escape = CMD_ESCAPE;
366 uint8_t payload = *data_to_send++;
368 if (payload == CMD_RESET)
369 if (tcp_send(tcp, &escape, 1) != SR_OK)
370 sr_warn("Couldn't send escape");
372 if (payload == CMD_ESCAPE)
373 if (tcp_send(tcp, &escape, 1) != SR_OK)
374 sr_warn("Couldn't send escape");
376 if (tcp_send(tcp, &payload, 1) != SR_OK)
377 sr_warn("Couldn't send data");
383 SR_PRIV int ipdbg_la_send_delay(struct dev_context *devc,
384 struct ipdbg_la_tcp *tcp)
386 devc->delay_value = (devc->limit_samples / 100.0) * devc->capture_ratio;
390 tcp_send(tcp, &buf, 1);
392 tcp_send(tcp, &buf, 1);
394 uint8_t delay_buf[4] = { devc->delay_value & 0x000000ff,
395 (devc->delay_value >> 8) & 0x000000ff,
396 (devc->delay_value >> 16) & 0x000000ff,
397 (devc->delay_value >> 24) & 0x000000ff
400 for (uint64_t i = 0; i < devc->addr_width_bytes; i++)
401 send_escaping(tcp, &(delay_buf[devc->addr_width_bytes - 1 - i]), 1);
406 SR_PRIV int ipdbg_la_send_trigger(struct dev_context *devc,
407 struct ipdbg_la_tcp *tcp)
412 buf = CMD_CFG_TRIGGER;
413 tcp_send(tcp, &buf, 1);
414 buf = CMD_TRIG_MASKS;
415 tcp_send(tcp, &buf, 1);
417 tcp_send(tcp, &buf, 1);
419 for (size_t i = 0; i < devc->data_width_bytes; i++)
421 devc->trigger_mask + devc->data_width_bytes - 1 - i, 1);
424 buf = CMD_CFG_TRIGGER;
425 tcp_send(tcp, &buf, 1);
426 buf = CMD_TRIG_MASKS;
427 tcp_send(tcp, &buf, 1);
428 buf = CMD_TRIG_VALUE;
429 tcp_send(tcp, &buf, 1);
431 for (size_t i = 0; i < devc->data_width_bytes; i++)
433 devc->trigger_value + devc->data_width_bytes - 1 - i, 1);
436 buf = CMD_CFG_TRIGGER;
437 tcp_send(tcp, &buf, 1);
438 buf = CMD_TRIG_MASKS_LAST;
439 tcp_send(tcp, &buf, 1);
440 buf = CMD_TRIG_MASK_LAST;
441 tcp_send(tcp, &buf, 1);
443 for (size_t i = 0; i < devc->data_width_bytes; i++)
445 devc->trigger_mask_last + devc->data_width_bytes - 1 - i, 1);
448 buf = CMD_CFG_TRIGGER;
449 tcp_send(tcp, &buf, 1);
450 buf = CMD_TRIG_MASKS_LAST;
451 tcp_send(tcp, &buf, 1);
452 buf = CMD_TRIG_VALUE_LAST;
453 tcp_send(tcp, &buf, 1);
455 for (size_t i = 0; i < devc->data_width_bytes; i++)
457 devc->trigger_value_last + devc->data_width_bytes - 1 - i, 1);
460 buf = CMD_CFG_TRIGGER;
461 tcp_send(tcp, &buf, 1);
462 buf = CMD_TRIG_SELECT_EDGE_MASK;
463 tcp_send(tcp, &buf, 1);
464 buf = CMD_TRIG_SET_EDGE_MASK;
465 tcp_send(tcp, &buf, 1);
467 for (size_t i = 0; i < devc->data_width_bytes; i++)
469 devc->trigger_edge_mask + devc->data_width_bytes - 1 - i, 1);
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 (tcp_send(tcp, &read_cmd, 1) != SR_OK)
481 sr_warn("Can't send read command");
483 if (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 const 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 (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 (tcp_send(tcp, &buf, 1) != SR_OK)
536 sr_warn("Couldn't send ID request");
539 if (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 (tcp_send(tcp, &buf, 1) != SR_OK)
567 sr_warn("Couldn't send start");