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 static 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 static int tcp_send(struct ipdbg_la_tcp *tcp, const uint8_t *buf, size_t len)
162 out = send(tcp->socket, buf, len, 0);
165 sr_err("Send error: %s", g_strerror(errno));
170 sr_dbg("Only sent %d/%d bytes of data.", out, (int)len);
175 static int tcp_receive_blocking(struct ipdbg_la_tcp *tcp,
176 uint8_t *buf, int bufsize)
181 /* Timeout after 500ms of not receiving data */
182 while ((received < bufsize) && (error_count < 500)) {
183 if (ipdbg_la_tcp_receive(tcp, buf) > 0) {
188 g_usleep(1000); /* Sleep for 1ms */
195 SR_PRIV int ipdbg_la_tcp_receive(struct ipdbg_la_tcp *tcp,
200 if (data_available(tcp)) {
201 while (received < 1) {
202 int len = recv(tcp->socket, buf, 1, 0);
205 sr_err("Receive error: %s", g_strerror(errno));
216 SR_PRIV int ipdbg_la_convert_trigger(const struct sr_dev_inst *sdi)
218 struct dev_context *devc;
219 struct sr_trigger *trigger;
220 struct sr_trigger_stage *stage;
221 struct sr_trigger_match *match;
226 devc->num_stages = 0;
227 devc->num_transfers = 0;
228 devc->raw_sample_buf = NULL;
230 for (uint64_t i = 0; i < devc->data_width_bytes; i++) {
231 devc->trigger_mask[i] = 0;
232 devc->trigger_value[i] = 0;
233 devc->trigger_mask_last[i] = 0;
234 devc->trigger_value_last[i] = 0;
235 devc->trigger_edge_mask[i] = 0;
238 if (!(trigger = sr_session_trigger_get(sdi->session)))
241 for (l = trigger->stages; l; l = l->next) {
243 for (m = stage->matches; m; m = m->next) {
245 int byte_idx = match->channel->index / 8;
246 uint8_t match_bit = 1 << (match->channel->index % 8);
248 if (!match->channel->enabled)
249 /* Ignore disabled channels with a trigger. */
252 if (match->match == SR_TRIGGER_ONE) {
253 devc->trigger_value[byte_idx] |= match_bit;
254 devc->trigger_mask[byte_idx] |= match_bit;
255 devc->trigger_mask_last[byte_idx] &= ~match_bit;
256 devc->trigger_edge_mask[byte_idx] &= ~match_bit;
257 } else if (match->match == SR_TRIGGER_ZERO) {
258 devc->trigger_value[byte_idx] &= ~match_bit;
259 devc->trigger_mask[byte_idx] |= match_bit;
260 devc->trigger_mask_last[byte_idx] &= ~match_bit;
261 devc->trigger_edge_mask[byte_idx] &= ~match_bit;
262 } else if (match->match == SR_TRIGGER_RISING) {
263 devc->trigger_value[byte_idx] |= match_bit;
264 devc->trigger_value_last[byte_idx] &=
266 devc->trigger_mask[byte_idx] |= match_bit;
267 devc->trigger_mask_last[byte_idx] |= match_bit;
268 devc->trigger_edge_mask[byte_idx] &= ~match_bit;
269 } else if (match->match == SR_TRIGGER_FALLING) {
270 devc->trigger_value[byte_idx] &= ~match_bit;
271 devc->trigger_value_last[byte_idx] |= match_bit;
272 devc->trigger_mask[byte_idx] |= match_bit;
273 devc->trigger_mask_last[byte_idx] |= match_bit;
274 devc->trigger_edge_mask[byte_idx] &= ~match_bit;
275 } else if (match->match == SR_TRIGGER_EDGE) {
276 devc->trigger_mask[byte_idx] &= ~match_bit;
277 devc->trigger_mask_last[byte_idx] &= ~match_bit;
278 devc->trigger_edge_mask[byte_idx] |= match_bit;
286 SR_PRIV int ipdbg_la_receive_data(int fd, int revents, void *cb_data)
288 const struct sr_dev_inst *sdi;
289 struct dev_context *devc;
298 if (!(devc = sdi->priv))
301 struct ipdbg_la_tcp *tcp = sdi->conn;
302 struct sr_datafeed_packet packet;
303 struct sr_datafeed_logic logic;
305 if (!devc->raw_sample_buf) {
306 devc->raw_sample_buf =
307 g_try_malloc(devc->limit_samples * devc->data_width_bytes);
308 if (!devc->raw_sample_buf) {
309 sr_err("Sample buffer malloc failed.");
314 if (devc->num_transfers <
315 (devc->limit_samples_max * devc->data_width_bytes)) {
318 if (ipdbg_la_tcp_receive(tcp, &byte) == 1) {
319 if (devc->num_transfers <
320 (devc->limit_samples * devc->data_width_bytes))
321 devc->raw_sample_buf[devc->num_transfers] = byte;
323 devc->num_transfers++;
326 if (devc->delay_value > 0) {
327 /* There are pre-trigger samples, send those first. */
328 packet.type = SR_DF_LOGIC;
329 packet.payload = &logic;
330 logic.length = devc->delay_value * devc->data_width_bytes;
331 logic.unitsize = devc->data_width_bytes;
332 logic.data = devc->raw_sample_buf;
333 sr_session_send(cb_data, &packet);
336 /* Send the trigger. */
337 packet.type = SR_DF_TRIGGER;
338 sr_session_send(cb_data, &packet);
340 /* Send post-trigger samples. */
341 packet.type = SR_DF_LOGIC;
342 packet.payload = &logic;
343 logic.length = (devc->limit_samples - devc->delay_value) *
344 devc->data_width_bytes;
345 logic.unitsize = devc->data_width_bytes;
346 logic.data = devc->raw_sample_buf +
347 (devc->delay_value * devc->data_width_bytes);
348 sr_session_send(cb_data, &packet);
350 g_free(devc->raw_sample_buf);
351 devc->raw_sample_buf = NULL;
353 ipdbg_la_abort_acquisition(sdi);
359 static int send_escaping(struct ipdbg_la_tcp *tcp, uint8_t *data_to_send,
362 uint8_t escape = CMD_ESCAPE;
365 uint8_t payload = *data_to_send++;
367 if (payload == CMD_RESET)
368 if (tcp_send(tcp, &escape, 1) != SR_OK)
369 sr_warn("Couldn't send escape");
371 if (payload == CMD_ESCAPE)
372 if (tcp_send(tcp, &escape, 1) != SR_OK)
373 sr_warn("Couldn't send escape");
375 if (tcp_send(tcp, &payload, 1) != SR_OK)
376 sr_warn("Couldn't send data");
382 SR_PRIV int ipdbg_la_send_delay(struct dev_context *devc,
383 struct ipdbg_la_tcp *tcp)
385 devc->delay_value = (devc->limit_samples / 100.0) * devc->capture_ratio;
389 tcp_send(tcp, &buf, 1);
391 tcp_send(tcp, &buf, 1);
393 uint8_t delay_buf[4] = { devc->delay_value & 0x000000ff,
394 (devc->delay_value >> 8) & 0x000000ff,
395 (devc->delay_value >> 16) & 0x000000ff,
396 (devc->delay_value >> 24) & 0x000000ff
399 for (uint64_t i = 0; i < devc->addr_width_bytes; i++)
400 send_escaping(tcp, &(delay_buf[devc->addr_width_bytes - 1 - i]), 1);
405 SR_PRIV int ipdbg_la_send_trigger(struct dev_context *devc,
406 struct ipdbg_la_tcp *tcp)
411 buf = CMD_CFG_TRIGGER;
412 tcp_send(tcp, &buf, 1);
413 buf = CMD_TRIG_MASKS;
414 tcp_send(tcp, &buf, 1);
416 tcp_send(tcp, &buf, 1);
418 for (size_t i = 0; i < devc->data_width_bytes; i++)
420 devc->trigger_mask + devc->data_width_bytes - 1 - i, 1);
423 buf = CMD_CFG_TRIGGER;
424 tcp_send(tcp, &buf, 1);
425 buf = CMD_TRIG_MASKS;
426 tcp_send(tcp, &buf, 1);
427 buf = CMD_TRIG_VALUE;
428 tcp_send(tcp, &buf, 1);
430 for (size_t i = 0; i < devc->data_width_bytes; i++)
432 devc->trigger_value + devc->data_width_bytes - 1 - i, 1);
435 buf = CMD_CFG_TRIGGER;
436 tcp_send(tcp, &buf, 1);
437 buf = CMD_TRIG_MASKS_LAST;
438 tcp_send(tcp, &buf, 1);
439 buf = CMD_TRIG_MASK_LAST;
440 tcp_send(tcp, &buf, 1);
442 for (size_t i = 0; i < devc->data_width_bytes; i++)
444 devc->trigger_mask_last + devc->data_width_bytes - 1 - i, 1);
447 buf = CMD_CFG_TRIGGER;
448 tcp_send(tcp, &buf, 1);
449 buf = CMD_TRIG_MASKS_LAST;
450 tcp_send(tcp, &buf, 1);
451 buf = CMD_TRIG_VALUE_LAST;
452 tcp_send(tcp, &buf, 1);
454 for (size_t i = 0; i < devc->data_width_bytes; i++)
456 devc->trigger_value_last + devc->data_width_bytes - 1 - i, 1);
459 buf = CMD_CFG_TRIGGER;
460 tcp_send(tcp, &buf, 1);
461 buf = CMD_TRIG_SELECT_EDGE_MASK;
462 tcp_send(tcp, &buf, 1);
463 buf = CMD_TRIG_SET_EDGE_MASK;
464 tcp_send(tcp, &buf, 1);
466 for (size_t i = 0; i < devc->data_width_bytes; i++)
468 devc->trigger_edge_mask + devc->data_width_bytes - 1 - i, 1);
473 SR_PRIV void ipdbg_la_get_addrwidth_and_datawidth(
474 struct ipdbg_la_tcp *tcp, struct dev_context *devc)
477 uint8_t read_cmd = CMD_GET_BUS_WIDTHS;
479 if (tcp_send(tcp, &read_cmd, 1) != SR_OK)
480 sr_warn("Can't send read command");
482 if (tcp_receive_blocking(tcp, buf, 8) != 8)
483 sr_warn("Can't get address and data width from device");
485 devc->data_width = buf[0] & 0x000000FF;
486 devc->data_width |= (buf[1] << 8) & 0x0000FF00;
487 devc->data_width |= (buf[2] << 16) & 0x00FF0000;
488 devc->data_width |= (buf[3] << 24) & 0xFF000000;
490 devc->addr_width = buf[4] & 0x000000FF;
491 devc->addr_width |= (buf[5] << 8) & 0x0000FF00;
492 devc->addr_width |= (buf[6] << 16) & 0x00FF0000;
493 devc->addr_width |= (buf[7] << 24) & 0xFF000000;
495 const uint8_t host_word_size = 8;
497 devc->data_width_bytes =
498 (devc->data_width + host_word_size - 1) / host_word_size;
499 devc->addr_width_bytes =
500 (devc->addr_width + host_word_size - 1) / host_word_size;
502 devc->limit_samples_max = (0x01 << devc->addr_width);
503 devc->limit_samples = devc->limit_samples_max;
505 devc->trigger_mask = g_malloc0(devc->data_width_bytes);
506 devc->trigger_value = g_malloc0(devc->data_width_bytes);
507 devc->trigger_mask_last = g_malloc0(devc->data_width_bytes);
508 devc->trigger_value_last = g_malloc0(devc->data_width_bytes);
509 devc->trigger_edge_mask = g_malloc0(devc->data_width_bytes);
512 SR_PRIV struct dev_context *ipdbg_la_dev_new(void)
514 struct dev_context *devc;
516 devc = g_malloc0(sizeof(struct dev_context));
517 devc->capture_ratio = 50;
522 SR_PRIV int ipdbg_la_send_reset(struct ipdbg_la_tcp *tcp)
524 uint8_t buf = CMD_RESET;
525 if (tcp_send(tcp, &buf, 1) != SR_OK)
526 sr_warn("Couldn't send reset");
531 SR_PRIV int ipdbg_la_request_id(struct ipdbg_la_tcp *tcp)
533 uint8_t buf = CMD_GET_LA_ID;
534 if (tcp_send(tcp, &buf, 1) != SR_OK)
535 sr_warn("Couldn't send ID request");
538 if (tcp_receive_blocking(tcp, (uint8_t *)id, 4) != 4) {
539 sr_err("Couldn't read device ID");
543 if (strncmp(id, "IDBG", 4)) {
544 sr_err("Invalid device ID: expected 'IDBG', got '%c%c%c%c'.",
545 id[0], id[1], id[2], id[3]);
552 SR_PRIV void ipdbg_la_abort_acquisition(const struct sr_dev_inst *sdi)
554 struct ipdbg_la_tcp *tcp = sdi->conn;
556 sr_session_source_remove(sdi->session, tcp->socket);
558 std_session_send_df_end(sdi);
561 SR_PRIV int ipdbg_la_send_start(struct ipdbg_la_tcp *tcp)
563 uint8_t buf = CMD_START;
565 if (tcp_send(tcp, &buf, 1) != SR_OK)
566 sr_warn("Couldn't send start");