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irrecord.c
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1 /***************************************************************************
2 ** irrecord.c **************************************************************
3 ****************************************************************************
4 *
5 * irrecord - library for recording IR-codes for usage with lircd
6 *
7 * Copyright (C) 1998,99 Christoph Bartelmus <lirc@bartelmus.de>
8 *
9 */
10 
16 #define _GNU_SOURCE
17 
18 #ifdef HAVE_CONFIG_H
19 #include "config.h"
20 #endif
21 
22 #include <stdint.h>
23 #include <unistd.h>
24 #include <poll.h>
25 
26 #include "lirc_private.h"
27 #include "irrecord.h"
28 
29 /* -------------------------- C file -------------------------------- */
30 
31 static const logchannel_t logchannel = LOG_LIB;
32 
33 // forwards
34 static lirc_t emulation_readdata(lirc_t timeout);
35 
36 // Constants
37 static const struct driver hw_emulation = {
38  .name = "emulation",
39  .device = "/dev/null",
40  .features = LIRC_CAN_REC_MODE2,
41  .send_mode = 0,
42  .rec_mode = LIRC_MODE_MODE2,
43  .code_length = 0,
44  .init_func = NULL,
45  .deinit_func = NULL,
46  .send_func = NULL,
47  .rec_func = NULL,
48  .decode_func = NULL,
49  .drvctl_func = NULL,
50  .readdata = emulation_readdata,
51  .open_func = default_open,
52  .close_func = default_close,
53  .api_version = 2,
54  .driver_version = "0.9.2"
55 };
56 
57 static const int IR_CODE_NODE_SIZE = sizeof(struct ir_code_node);
58 
59 // Globals
60 
61 struct ir_remote remote;
62 unsigned int eps = 30;
63 lirc_t aeps = 100;
64 
65 // Static data
66 
67 static lirc_t signals[MAX_SIGNALS];
68 static struct ir_remote* emulation_data;
69 static struct ir_ncode* next_code = NULL;
70 static struct ir_ncode* current_code = NULL;
71 static int current_index = 0;
72 static int current_rep = 0;
73 
74 static struct lengths* first_space = NULL;
75 static struct lengths* first_pulse = NULL;
76 static struct lengths* first_sum = NULL;
77 static struct lengths* first_gap = NULL;
78 static struct lengths* first_repeat_gap = NULL;
79 static struct lengths* first_signal_length = NULL;
80 static struct lengths* first_headerp = NULL;
81 static struct lengths* first_headers = NULL;
82 static struct lengths* first_1lead = NULL;
83 static struct lengths* first_3lead = NULL;
84 static struct lengths* first_trail = NULL;
85 static struct lengths* first_repeatp = NULL;
86 static struct lengths* first_repeats = NULL;
87 
88 static uint32_t lengths[MAX_SIGNALS];
89 static uint32_t first_length, first_lengths, second_lengths;
90 static unsigned int count, count_spaces, count_signals;
91 static unsigned int count_3repeats, count_5repeats;
92 
93 
94 // Functions
95 
97 void btn_state_set_message(struct button_state* state, const char* fmt, ...)
98 {
99  va_list ap;
100 
101  va_start(ap, fmt);
102  vsnprintf(state->message, sizeof(state->message), fmt, ap);
103  va_end(ap);
104 }
105 
106 
107 static void fprint_copyright(FILE* fout)
108 {
109  fprintf(fout, "\n"
110  "# Please take the time to finish this file as described in\n"
111  "# https://sourceforge.net/p/lirc-remotes/wiki/Checklist/\n"
112  "# and make it available to others by sending it to\n"
113  "# <lirc@bartelmus.de>\n");
114 }
115 
116 
118 int availabledata(void)
119 {
120  struct pollfd pfd = {
121  .fd = curr_driver->fd, .events = POLLIN, .revents = 0};
122  int ret;
123 
124  do {
125  do {
126  ret = curl_poll(&pfd, 1, 0);
127  } while (ret == -1 && errno == EINTR);
128  if (ret == -1) {
129  log_perror_err("availabledata: curl_poll() failed");
130  continue;
131  }
132  } while (ret == -1);
133 
134  return pfd.revents & POLLIN ? 1 : 0;
135 }
136 
137 
139 void flushhw(void)
140 {
141  size_t size = 1;
142  char buffer[PACKET_SIZE];
143 
144  switch (curr_driver->rec_mode) {
145  case LIRC_MODE_MODE2:
146  while (availabledata())
147  curr_driver->readdata(0);
148  return;
149  case LIRC_MODE_LIRCCODE:
150  size = curr_driver->code_length / CHAR_BIT;
151  if (curr_driver->code_length % CHAR_BIT)
152  size++;
153  break;
154  }
155  while (read(curr_driver->fd, buffer, size) == size)
156  ;
157 }
158 
159 
161 int resethw(int started_as_root)
162 {
163  int flags;
164 
165  if (started_as_root)
166  if (seteuid(0) == -1)
167  log_error("Cannot reset root uid");
168  if (curr_driver->deinit_func)
169  curr_driver->deinit_func();
170  if (curr_driver->init_func) {
171  if (!curr_driver->init_func()) {
172  drop_sudo_root(seteuid);
173  return 0;
174  }
175  }
176  flags = fcntl(curr_driver->fd, F_GETFL, 0);
177  if (flags == -1 ||
178  fcntl(curr_driver->fd, F_SETFL, flags | O_NONBLOCK) == -1) {
179  if (curr_driver->deinit_func)
180  curr_driver->deinit_func();
181  drop_sudo_root(seteuid);
182  return 0;
183  }
184  drop_sudo_root(seteuid);
185  return 1;
186 }
187 
188 
189 void gap_state_init(struct gap_state* state)
190 {
191  memset(state, 0, sizeof(struct gap_state));
192 }
193 
194 
195 void lengths_state_init(struct lengths_state* state)
196 {
197  count = 0;
198  count_spaces = 0;
199  count_3repeats = 0;
200  count_5repeats = 0;
201  count_signals = 0;
202  first_length = 0;
203  first_lengths = 0;
204  second_lengths = 0;
205  memset(state, 0, sizeof(struct lengths_state));
206  state->first_signal = -1;
207  state->retval = 1;
208 }
209 
210 
211 void toggle_state_init(struct toggle_state* state)
212 {
213  memset(state, 0, sizeof(struct toggle_state));
214  state->retries = 30;
215  state->retval = EXIT_SUCCESS;
216 }
217 
218 
219 void button_state_init(struct button_state* state, int started_as_root)
220 {
221  memset(state, 0, sizeof(struct button_state));
222  state->started_as_root = started_as_root;
223  state->retval = EXIT_SUCCESS;
224 }
225 
226 
227 static lirc_t calc_signal(struct lengths* len)
228 {
229  if (len->count == 0)
230  return 0;
231  return (lirc_t)(len->sum / len->count);
232 }
233 
234 
235 static void set_toggle_bit_mask(struct ir_remote* remote, ir_code xor)
236 {
237  ir_code mask;
238  struct ir_ncode* codes;
239  int bits;
240 
241  if (!remote->codes)
242  return;
243 
244  bits = bit_count(remote);
245  mask = ((ir_code)1) << (bits - 1);
246  while (mask) {
247  if (mask == xor)
248  break;
249  mask = mask >> 1;
250  }
251  if (mask) {
252  remote->toggle_bit_mask = xor;
253 
254  codes = remote->codes;
255  while (codes->name != NULL) {
256  codes->code &= ~xor;
257  codes++;
258  }
259  }
260  /* Sharp, Denon and some others use a toggle_mask */
261  else if (bits == 15 && xor == 0x3ff) {
262  remote->toggle_mask = xor;
263  } else {
264  remote->toggle_bit_mask = xor;
265  }
266 }
267 
268 
269 void get_pre_data(struct ir_remote* remote)
270 {
271  struct ir_ncode* codes;
272  ir_code mask, last;
273  int count, i;
274  struct ir_code_node* n;
275 
276  if (remote->bits == 0)
277  return;
278  mask = (-1);
279  codes = remote->codes;
280  if (codes->name == NULL)
281  return; /* at least 2 codes needed */
282  last = codes->code;
283  codes++;
284  if (codes->name == NULL)
285  return; /* at least 2 codes needed */
286  while (codes->name != NULL) {
287  mask &= ~(last ^ codes->code);
288  last = codes->code;
289  for (n = codes->next; n != NULL; n = n->next) {
290  mask &= ~(last ^ n->code);
291  last = n->code;
292  }
293  codes++;
294  }
295  count = 0;
296  while (mask & 0x8000000000000000LL) {
297  count++;
298  mask = mask << 1;
299  }
300  count -= sizeof(ir_code) * CHAR_BIT - remote->bits;
301 
302  /* only "even" numbers should go to pre/post data */
303  if (count % 8 && (remote->bits - count) % 8)
304  count -= count % 8;
305  if (count > 0) {
306  mask = 0;
307  for (i = 0; i < count; i++) {
308  mask = mask << 1;
309  mask |= 1;
310  }
311  remote->bits -= count;
312  mask = mask << (remote->bits);
313  remote->pre_data_bits = count;
314  remote->pre_data = (last & mask) >> (remote->bits);
315 
316  codes = remote->codes;
317  while (codes->name != NULL) {
318  codes->code &= ~mask;
319  for (n = codes->next; n != NULL; n = n->next)
320  n->code &= ~mask;
321  codes++;
322  }
323  }
324 }
325 
326 
327 void get_post_data(struct ir_remote* remote)
328 {
329  struct ir_ncode* codes;
330  ir_code mask, last;
331  int count, i;
332  struct ir_code_node* n;
333 
334  if (remote->bits == 0)
335  return;
336 
337  mask = (-1);
338  codes = remote->codes;
339  if (codes->name == NULL)
340  return; /* at least 2 codes needed */
341  last = codes->code;
342  codes++;
343  if (codes->name == NULL)
344  return; /* at least 2 codes needed */
345  while (codes->name != NULL) {
346  mask &= ~(last ^ codes->code);
347  last = codes->code;
348  for (n = codes->next; n != NULL; n = n->next) {
349  mask &= ~(last ^ n->code);
350  last = n->code;
351  }
352  codes++;
353  }
354  count = 0;
355  while (mask & 0x1) {
356  count++;
357  mask = mask >> 1;
358  }
359  /* only "even" numbers should go to pre/post data */
360  if (count % 8 && (remote->bits - count) % 8)
361  count -= count % 8;
362  if (count > 0) {
363  mask = 0;
364  for (i = 0; i < count; i++) {
365  mask = mask << 1;
366  mask |= 1;
367  }
368  remote->bits -= count;
369  remote->post_data_bits = count;
370  remote->post_data = last & mask;
371 
372  codes = remote->codes;
373  while (codes->name != NULL) {
374  codes->code = codes->code >> count;
375  for (n = codes->next; n != NULL; n = n->next)
376  n->code = n->code >> count;
377  codes++;
378  }
379  }
380 }
381 
382 
383 void remove_pre_data(struct ir_remote* remote)
384 {
385  struct ir_ncode* codes;
386  struct ir_code_node* n;
387 
388  if (remote->pre_data_bits == 0
389  || remote->pre_p != 0
390  || remote->pre_s != 0)
391  return;
392  for (codes = remote->codes; codes->name != NULL; codes++) {
393  codes->code |= remote->pre_data << remote->bits;
394  for (n = codes->next; n != NULL; n = n->next)
395  n->code |= remote->pre_data << remote->bits;
396  }
397  remote->bits += remote->pre_data_bits;
398  remote->pre_data = 0;
399  remote->pre_data_bits = 0;
400 }
401 
402 
403 void remove_post_data(struct ir_remote* remote)
404 {
405  struct ir_ncode* codes;
406  struct ir_code_node* n;
407 
408  if (remote->post_data_bits == 0)
409  return;
410  for (codes = remote->codes; codes->name != NULL; codes++) {
411  codes->code <<= remote->post_data_bits;
412  codes->code |= remote->post_data;
413  for (n = codes->next; n != NULL; n = n->next) {
414  n->code <<= remote->post_data_bits;
415  n->code |= remote->post_data;
416  }
417  }
418  remote->bits += remote->post_data_bits;
419  remote->post_data = 0;
420  remote->post_data_bits = 0;
421 }
422 
423 
424 void invert_data(struct ir_remote* remote)
425 {
426  struct ir_ncode* codes;
427  ir_code mask;
428  lirc_t p, s;
429  struct ir_code_node* n;
430 
431  /* swap one, zero */
432  p = remote->pone;
433  s = remote->sone;
434  remote->pone = remote->pzero;
435  remote->sone = remote->szero;
436  remote->pzero = p;
437  remote->szero = s;
438 
439  /* invert pre_data */
440  if (has_pre(remote)) {
441  mask = gen_mask(remote->pre_data_bits);
442  remote->pre_data ^= mask;
443  }
444  /* invert post_data */
445  if (has_post(remote)) {
446  mask = gen_mask(remote->post_data_bits);
447  remote->post_data ^= mask;
448  }
449 
450  if (remote->bits == 0)
451  return;
452 
453  /* invert codes */
454  mask = gen_mask(remote->bits);
455  for (codes = remote->codes; codes->name != NULL; codes++) {
456  codes->code ^= mask;
457  for (n = codes->next; n != NULL; n = n->next)
458  n->code ^= mask;
459  }
460 }
461 
462 
463 void remove_trail(struct ir_remote* remote)
464 {
465  int extra_bit;
466 
467  if (!is_space_enc(remote))
468  return;
469  if (remote->ptrail == 0)
470  return;
471  if (expect(remote, remote->pone, remote->pzero)
472  || expect(remote, remote->pzero, remote->pone))
473  return;
474  if (!(expect(remote, remote->sone, remote->szero)
475  && expect(remote, remote->szero, remote->sone)))
476  return;
477  if (expect(remote, remote->ptrail, remote->pone))
478  extra_bit = 1;
479  else if (expect(remote, remote->ptrail, remote->pzero))
480  extra_bit = 0;
481  else
482  return;
483 
484  remote->post_data_bits++;
485  remote->post_data <<= 1;
486  remote->post_data |= extra_bit;
487  remote->ptrail = 0;
488 }
489 
490 
491 void for_each_remote(struct ir_remote* remotes, remote_func func)
492 {
493  struct ir_remote* remote;
494 
495  remote = remotes;
496  while (remote != NULL) {
497  func(remote);
498  remote = remote->next;
499  }
500 }
501 
502 
503 static int mywaitfordata(uint32_t maxusec)
504 {
505  int ret;
506  struct pollfd pfd = {
507  .fd = curr_driver->fd, .events = POLLIN, .revents = 0};
508 
509  do {
510  ret = curl_poll(&pfd, 1, maxusec / 1000);
511  } while (ret == -1 && errno == EINTR);
512 
513  if (ret == -1 && errno != EINTR)
514  log_perror_err("mywaitfordata: curl_poll() failed");
515  return (pfd.revents & POLLIN) != 0;
516 }
517 
518 
519 static lirc_t emulation_readdata(lirc_t timeout)
520 {
521  static lirc_t sum = 0;
522  lirc_t data = 0;
523 
524  if (current_code == NULL) {
525  data = 1000000;
526  if (next_code)
527  current_code = next_code;
528  else
529  current_code = emulation_data->codes;
530  current_rep = 0;
531  sum = 0;
532  } else {
533  if (current_code->name == NULL) {
534  log_warn("%s: no data found", emulation_data->name);
535  data = 0;
536  }
537  if (current_index >= current_code->length) {
538  if (next_code) {
539  current_code = next_code;
540  } else {
541  current_rep++;
542  if (current_rep > 2) {
543  current_code++;
544  current_rep = 0;
545  data = 1000000;
546  }
547  }
548  current_index = 0;
549  if (current_code->name == NULL) {
550  current_code = NULL;
551  return emulation_readdata(timeout);
552  }
553  if (data == 0) {
554  if (is_const(emulation_data))
555  data = emulation_data->gap - sum;
556  else
557  data = emulation_data->gap;
558  }
559 
560  sum = 0;
561  } else {
562  data = current_code->signals[current_index];
563  if ((current_index % 2) == 0)
564  data |= PULSE_BIT;
565  current_index++;
566  sum += data & PULSE_MASK;
567  }
568  }
569  log_debug("delivering: %c%u\n",
570  data & PULSE_BIT ? 'p':'s', data & PULSE_MASK);
571  return data;
572 }
573 
574 
575 static struct lengths* new_length(lirc_t length)
576 {
577  struct lengths* l;
578 
579  l = malloc(sizeof(struct lengths));
580  if (l == NULL)
581  return NULL;
582  l->count = 1;
583  l->sum = length;
584  l->lower_bound = length / 100 * 100;
585  l->upper_bound = length / 100 * 100 + 99;
586  l->min = l->max = length;
587  l->next = NULL;
588  return l;
589 }
590 
591 
592 void unlink_length(struct lengths** first, struct lengths* remove)
593 {
594  struct lengths* last;
595  struct lengths* scan;
596 
597  if (remove == *first) {
598  *first = remove->next;
599  remove->next = NULL;
600  return;
601  }
602  scan = (*first)->next;
603  last = *first;
604  while (scan) {
605  if (scan == remove) {
606  last->next = remove->next;
607  remove->next = NULL;
608  return;
609  }
610  last = scan;
611  scan = scan->next;
612  }
613  log_error("unlink_length(): report this bug!");
614 }
615 
616 
617 int add_length(struct lengths** first, lirc_t length)
618 {
619  struct lengths* l;
620  struct lengths* last;
621 
622  if (*first == NULL) {
623  *first = new_length(length);
624  if (*first == NULL)
625  return 0;
626  return 1;
627  }
628  l = *first;
629  while (l != NULL) {
630  if (l->lower_bound <= length && length <= l->upper_bound) {
631  l->count++;
632  l->sum += length;
633  l->min = min(l->min, length);
634  l->max = max(l->max, length);
635  return 1;
636  }
637  last = l;
638  l = l->next;
639  }
640  last->next = new_length(length);
641  if (last->next == NULL)
642  return 0;
643  return 1;
644 }
645 
646 
647 void free_lengths(struct lengths** firstp)
648 {
649  struct lengths* first;
650  struct lengths* next;
651 
652  first = *firstp;
653  if (first == NULL)
654  return;
655  while (first != NULL) {
656  next = first->next;
657  free(first);
658  first = next;
659  }
660  *firstp = NULL;
661 }
662 
663 
664 void free_all_lengths(void)
665 {
666  free_lengths(&first_space);
667  free_lengths(&first_pulse);
668  free_lengths(&first_sum);
669  free_lengths(&first_gap);
670  free_lengths(&first_repeat_gap);
671  free_lengths(&first_signal_length);
672  free_lengths(&first_headerp);
673  free_lengths(&first_headers);
674  free_lengths(&first_1lead);
675  free_lengths(&first_3lead);
676  free_lengths(&first_trail);
677  free_lengths(&first_repeatp);
678  free_lengths(&first_repeats);
679 }
680 
681 
682 static void merge_lengths(struct lengths* first)
683 {
684  struct lengths* l;
685  struct lengths* inner;
686  struct lengths* last;
687  uint32_t new_sum;
688  int new_count;
689 
690  l = first;
691  while (l != NULL) {
692  last = l;
693  inner = l->next;
694  while (inner != NULL) {
695  new_sum = l->sum + inner->sum;
696  new_count = l->count + inner->count;
697 
698  if ((l->max <= new_sum / new_count + aeps
699  && l->min + aeps >= new_sum / new_count
700  && inner->max <= new_sum / new_count + aeps
701  && inner->min + aeps >= new_sum / new_count)
702  || (l->max <= new_sum / new_count * (100 + eps)
703  && l->min >= new_sum / new_count * (100 - eps)
704  && inner->max <= new_sum / new_count *
705  (100 + eps)
706  && inner->min >= new_sum / new_count *
707  (100 - eps))) {
708  l->sum = new_sum;
709  l->count = new_count;
710  l->upper_bound = max(l->upper_bound,
711  inner->upper_bound);
712  l->lower_bound = min(l->lower_bound,
713  inner->lower_bound);
714  l->min = min(l->min, inner->min);
715  l->max = max(l->max, inner->max);
716 
717  last->next = inner->next;
718  free(inner);
719  inner = last;
720  }
721  last = inner;
722  inner = inner->next;
723  }
724  l = l->next;
725  }
726  for (l = first; l != NULL; l = l->next) {
727  log_debug("%d x %u [%u,%u]",
728  l->count, (uint32_t)calc_signal(l),
729  (uint32_t)l->min, (uint32_t)l->max);
730  }
731 }
732 
733 
739 static struct lengths* get_max_length(struct lengths* first,
740  unsigned int* sump)
741 {
742  unsigned int sum;
743  struct lengths* scan;
744  struct lengths* max_length;
745 
746  if (first == NULL)
747  return NULL;
748  max_length = first;
749  sum = first->count;
750 
751  if (first->count > 0)
752  log_debug("%u x %u", first->count,
753  (uint32_t)calc_signal(first));
754  scan = first->next;
755  while (scan) {
756  if (scan->count > max_length->count)
757  max_length = scan;
758  sum += scan->count;
759  log_debug(
760  "%u x %u",
761  scan->count,
762  (uint32_t)calc_signal(scan));
763  scan = scan->next;
764  }
765  if (sump != NULL)
766  *sump = sum;
767  return max_length;
768 }
769 
770 
771 int get_trail_length(struct ir_remote* remote, int interactive)
772 {
773  unsigned int sum = 0, max_count;
774  struct lengths* max_length;
775 
776  if (is_biphase(remote))
777  return 1;
778 
779  max_length = get_max_length(first_trail, &sum);
780  max_count = max_length->count;
781  log_debug(
782  "get_trail_length(): sum: %u, max_count %u",
783  sum, max_count);
784  if (max_count >= sum * TH_TRAIL / 100) {
785  log_debug("Found trail pulse: %lu",
786  (uint32_t)calc_signal(max_length));
787  remote->ptrail = calc_signal(max_length);
788  return 1;
789  }
790  log_debug("No trail pulse found.");
791  return 1;
792 }
793 
794 
795 int get_lead_length(struct ir_remote* remote, int interactive)
796 {
797  unsigned int sum = 0, max_count;
798  struct lengths* first_lead;
799  struct lengths* max_length;
800  struct lengths* max2_length;
801  lirc_t a, b, swap;
802 
803  if (!is_biphase(remote) || has_header(remote))
804  return 1;
805  if (is_rc6(remote))
806  return 1;
807 
808  first_lead = has_header(remote) ? first_3lead : first_1lead;
809  max_length = get_max_length(first_lead, &sum);
810  max_count = max_length->count;
811  log_debug(
812  "get_lead_length(): sum: %u, max_count %u",
813  sum, max_count);
814  if (max_count >= sum * TH_LEAD / 100) {
815  log_debug(
816  "Found lead pulse: %lu",
817  (uint32_t)calc_signal(max_length));
818  remote->plead = calc_signal(max_length);
819  return 1;
820  }
821  unlink_length(&first_lead, max_length);
822  max2_length = get_max_length(first_lead, &sum);
823  max_length->next = first_lead;
824  first_lead = max_length;
825 
826  a = calc_signal(max_length);
827  b = calc_signal(max2_length);
828  if (a > b) {
829  swap = a;
830  a = b;
831  b = swap;
832  }
833  if (abs(2 * a - b) < b * eps / 100 || abs(2 * a - b) < aeps) {
834  log_debug(
835  "Found hidden lead pulse: %lu",
836  (uint32_t)a);
837  remote->plead = a;
838  return 1;
839  }
840  log_debug("No lead pulse found.");
841  return 1;
842 }
843 
844 
845 int get_header_length(struct ir_remote* remote, int interactive)
846 {
847  unsigned int sum, max_count;
848  lirc_t headerp, headers;
849  struct lengths* max_plength;
850  struct lengths* max_slength;
851 
852  if (first_headerp != NULL) {
853  max_plength = get_max_length(first_headerp, &sum);
854  max_count = max_plength->count;
855  } else {
856  log_debug("No header data.");
857  return 1;
858  }
859  log_debug(
860  "get_header_length(): sum: %u, max_count %u",
861  sum, max_count);
862 
863  if (max_count >= sum * TH_HEADER / 100) {
864  max_slength = get_max_length(first_headers, &sum);
865  max_count = max_slength->count;
866  log_debug(
867  "get_header_length(): sum: %u, max_count %u",
868  sum, max_count);
869  if (max_count >= sum * TH_HEADER / 100) {
870  headerp = calc_signal(max_plength);
871  headers = calc_signal(max_slength);
872 
873  log_debug(
874  "Found possible header: %lu %lu",
875  (uint32_t)headerp,
876  (uint32_t)headers);
877  remote->phead = headerp;
878  remote->shead = headers;
879  if (first_lengths < second_lengths) {
880  log_debug(
881  "Header is not being repeated.");
882  remote->flags |= NO_HEAD_REP;
883  }
884  return 1;
885  }
886  }
887  log_debug("No header found.");
888  return 1;
889 }
890 
891 
892 int get_repeat_length(struct ir_remote* remote, int interactive)
893 {
894  unsigned int sum = 0, max_count;
895  lirc_t repeatp, repeats, repeat_gap;
896  struct lengths* max_plength;
897  struct lengths* max_slength;
898 
899  if (!((count_3repeats > SAMPLES / 2 ? 1 : 0) ^
900  (count_5repeats > SAMPLES / 2 ? 1 : 0))) {
901  if (count_3repeats > SAMPLES / 2
902  || count_5repeats > SAMPLES / 2) {
903  log_warn("Repeat inconsistency.");
904  return 0;
905  }
906  log_debug("No repeat code found.");
907  return 1;
908  }
909 
910  max_plength = get_max_length(first_repeatp, &sum);
911  max_count = max_plength->count;
912  log_debug(
913  "get_repeat_length(): sum: %u, max_count %u",
914  sum, max_count);
915  if (max_count >= sum * TH_REPEAT / 100) {
916  max_slength = get_max_length(first_repeats, &sum);
917  max_count = max_slength->count;
918  log_debug(
919  "get_repeat_length(): sum: %u, max_count %u",
920  sum, max_count);
921  if (max_count >= sum * TH_REPEAT / 100) {
922  if (count_5repeats > count_3repeats
923  && !has_header(remote)) {
924  log_warn(
925  "Repeat code has header,"
926  " but no header found!");
927  return 0;
928  }
929  if (count_5repeats > count_3repeats
930  && has_header(remote))
931  remote->flags |= REPEAT_HEADER;
932  repeatp = calc_signal(max_plength);
933  repeats = calc_signal(max_slength);
934 
935  log_debug(
936  "Found repeat code: %lu %lu",
937  (uint32_t)repeatp,
938  (uint32_t)repeats);
939  remote->prepeat = repeatp;
940  remote->srepeat = repeats;
941  if (!(remote->flags & CONST_LENGTH)) {
942  max_slength = get_max_length(first_repeat_gap,
943  NULL);
944  repeat_gap = calc_signal(max_slength);
945  log_debug(
946  "Found repeat gap: %lu",
947  (uint32_t)repeat_gap);
948  remote->repeat_gap = repeat_gap;
949  }
950  return 1;
951  }
952  }
953  log_debug("No repeat header found.");
954  return 1;
955 }
956 
957 
958 void get_scheme(struct ir_remote* remote, int interactive)
959 {
960  unsigned int i, length = 0, sum = 0;
961  struct lengths* maxp;
962  struct lengths* max2p;
963  struct lengths* maxs;
964  struct lengths* max2s;
965 
966  for (i = 1; i < MAX_SIGNALS; i++) {
967  if (lengths[i] > lengths[length])
968  length = i;
969  sum += lengths[i];
970  if (lengths[i] > 0)
971  log_debug("%u: %u", i, lengths[i]);
972  }
973  log_debug("get_scheme(): sum: %u length: %u signals: %u"
974  " first_lengths: %u second_lengths: %u\n",
975  sum, length + 1, lengths[length],
976  first_lengths, second_lengths);
977  /* FIXME !!! this heuristic is too bad */
978  if (lengths[length] >= TH_SPACE_ENC * sum / 100) {
979  length++;
980  log_debug(
981  "Space/pulse encoded remote control found.");
982  log_debug("Signal length is %u.", length);
983  /* this is not yet the number of bits */
984  remote->bits = length;
985  set_protocol(remote, SPACE_ENC);
986  return;
987  }
988  maxp = get_max_length(first_pulse, NULL);
989  unlink_length(&first_pulse, maxp);
990  if (first_pulse == NULL)
991  first_pulse = maxp;
992  max2p = get_max_length(first_pulse, NULL);
993  maxp->next = first_pulse;
994  first_pulse = maxp;
995 
996  maxs = get_max_length(first_space, NULL);
997  unlink_length(&first_space, maxs);
998  if (first_space == NULL) {
999  first_space = maxs;
1000  } else {
1001  max2s = get_max_length(first_space, NULL);
1002  maxs->next = first_space;
1003  first_space = maxs;
1004 
1005  maxs = get_max_length(first_space, NULL);
1006 
1007  if (length > 20
1008  && (calc_signal(maxp) < TH_RC6_SIGNAL
1009  || calc_signal(max2p) < TH_RC6_SIGNAL)
1010  && (calc_signal(maxs) < TH_RC6_SIGNAL
1011  || calc_signal(max2s) < TH_RC6_SIGNAL)) {
1012  log_debug("RC-6 remote control found.");
1013  set_protocol(remote, RC6);
1014  } else {
1015  log_debug("RC-5 remote control found.");
1016  set_protocol(remote, RC5);
1017  }
1018  return;
1019  }
1020  length++;
1021  log_debug("Suspicious data length: %u.", length);
1022  /* this is not yet the number of bits */
1023  remote->bits = length;
1024  set_protocol(remote, SPACE_ENC);
1025 }
1026 
1027 
1028 int get_data_length(struct ir_remote* remote, int interactive)
1029 {
1030  unsigned int sum = 0, max_count;
1031  lirc_t p1, p2, s1, s2;
1032  struct lengths* max_plength;
1033  struct lengths* max_slength;
1034  struct lengths* max2_plength;
1035  struct lengths* max2_slength;
1036 
1037  max_plength = get_max_length(first_pulse, &sum);
1038  max_count = max_plength->count;
1039  log_debug("get_data_length(): sum: %u, max_count %u",
1040  sum, max_count);
1041 
1042  if (max_count >= sum * TH_IS_BIT / 100) {
1043  unlink_length(&first_pulse, max_plength);
1044 
1045  max2_plength = get_max_length(first_pulse, NULL);
1046  if (max2_plength != NULL)
1047  if (max2_plength->count < max_count * TH_IS_BIT / 100)
1048  max2_plength = NULL;
1049  log_debug("Pulse candidates: ");
1050  log_debug("%u x %u", max_plength->count,
1051  (uint32_t)calc_signal(max_plength));
1052  if (max2_plength)
1053  log_debug(", %u x %u",
1054  max2_plength->count,
1055  (uint32_t)calc_signal(max2_plength));
1056 
1057  max_slength = get_max_length(first_space, &sum);
1058  max_count = max_slength->count;
1059  log_debug(
1060  "get_data_length(): sum: %u, max_count %u",
1061  sum, max_count);
1062  if (max_count >= sum * TH_IS_BIT / 100) {
1063  unlink_length(&first_space, max_slength);
1064 
1065  max2_slength = get_max_length(first_space, NULL);
1066  if (max2_slength != NULL)
1067  if (max2_slength->count <
1068  max_count * TH_IS_BIT / 100)
1069  max2_slength = NULL;
1070  if (max_count >= sum * TH_IS_BIT / 100) {
1071  log_debug("Space candidates: ");
1072  log_debug(
1073  "%u x %u",
1074  max_slength->count,
1075  (uint32_t)calc_signal(max_slength));
1076  if (max2_slength) {
1077  log_debug(
1078  "%u x %u",
1079  max2_slength->count,
1080  (uint32_t)calc_signal(max2_slength));
1081  }
1082  }
1083  remote->eps = eps;
1084  remote->aeps = aeps;
1085  if (is_biphase(remote)) {
1086  if (max2_plength == NULL
1087  || max2_slength == NULL) {
1088  log_notice(
1089  "Unknown encoding found.");
1090  return 0;
1091  }
1092  log_debug(
1093  "Signals are biphase encoded.");
1094  p1 = calc_signal(max_plength);
1095  p2 = calc_signal(max2_plength);
1096  s1 = calc_signal(max_slength);
1097  s2 = calc_signal(max2_slength);
1098 
1099  remote->pone =
1100  (min(p1, p2) + max(p1, p2) / 2) / 2;
1101  remote->sone =
1102  (min(s1, s2) + max(s1, s2) / 2) / 2;
1103  remote->pzero = remote->pone;
1104  remote->szero = remote->sone;
1105  } else {
1106  if (max2_plength == NULL
1107  && max2_slength == NULL) {
1108  log_notice(
1109  "No encoding found");
1110  return 0;
1111  }
1112  if (max2_plength && max2_slength) {
1113  log_notice(
1114  "Unknown encoding found.");
1115  return 0;
1116  }
1117  p1 = calc_signal(max_plength);
1118  s1 = calc_signal(max_slength);
1119  if (max2_plength) {
1120  p2 = calc_signal(max2_plength);
1121  log_debug("Signals are pulse encoded.");
1122  remote->pone = max(p1, p2);
1123  remote->sone = s1;
1124  remote->pzero = min(p1, p2);
1125  remote->szero = s1;
1126  if (expect(remote, remote->ptrail, p1)
1127  || expect(remote, remote->ptrail,
1128  p2))
1129  remote->ptrail = 0;
1130  } else {
1131  s2 = calc_signal(max2_slength);
1132  log_debug("Signals are space encoded.");
1133  remote->pone = p1;
1134  remote->sone = max(s1, s2);
1135  remote->pzero = p1;
1136  remote->szero = min(s1, s2);
1137  }
1138  }
1139  if (has_header(remote)
1140  && (!has_repeat(remote)
1141  || remote->flags & NO_HEAD_REP)) {
1142  if (!is_biphase(remote)
1143  && ((expect(remote, remote->phead,
1144  remote->pone)
1145  && expect(remote,
1146  remote->shead,
1147  remote->sone))
1148  || (expect(remote,
1149  remote->phead,
1150  remote->pzero)
1151  && expect(remote,
1152  remote->shead,
1153  remote->szero)))) {
1154  remote->phead = remote->shead = 0;
1155  remote->flags &= ~NO_HEAD_REP;
1156  log_debug(
1157  "Removed header.");
1158  }
1159  if (is_biphase(remote)
1160  && expect(remote,
1161  remote->shead,
1162  remote->sone)) {
1163  remote->plead = remote->phead;
1164  remote->phead = remote->shead = 0;
1165  remote->flags &= ~NO_HEAD_REP;
1166  log_debug(
1167  "Removed header.");
1168  }
1169  }
1170  if (is_biphase(remote)) {
1171  struct lengths* signal_length;
1172  lirc_t data_length;
1173 
1174  signal_length =
1175  get_max_length(first_signal_length,
1176  NULL);
1177  data_length =
1178  calc_signal(signal_length) -
1179  remote->plead - remote->phead -
1180  remote->shead +
1181  /* + 1/2 bit */
1182  (remote->pone + remote->sone) / 2;
1183  remote->bits = data_length / (remote->pone +
1184  remote->sone);
1185  if (is_rc6(remote))
1186  remote->bits--;
1187  } else {
1188  remote->bits =
1189  (remote->bits -
1190  (has_header(remote) ? 2 : 0) + 1 -
1191  (remote->ptrail > 0 ? 2 : 0)) / 2;
1192  }
1193  log_debug(
1194  "Signal length is %d",
1195  remote->bits);
1196  free_lengths(&max_plength);
1197  free_lengths(&max_slength);
1198  return 1;
1199  }
1200  free_lengths(&max_plength);
1201  }
1202  log_notice("Could not find data lengths.");
1203  return 0;
1204 }
1205 
1206 
1207 enum get_gap_status get_gap_length(struct gap_state* state,
1208  struct ir_remote* remote)
1209 {
1210  while (availabledata())
1211  curr_driver->rec_func(NULL);
1212  if (!mywaitfordata(10000000)) {
1213  free_lengths(&(state->gaps));
1214  return STS_GAP_TIMEOUT;
1215  }
1216  gettimeofday(&(state->start), NULL);
1217  while (availabledata())
1218  curr_driver->rec_func(NULL);
1219  gettimeofday(&(state->end), NULL);
1220  if (state->flag) {
1221  state->gap = time_elapsed(&(state->last), &(state->start));
1222  add_length(&(state->gaps), state->gap);
1223  merge_lengths(state->gaps);
1224  state->maxcount = 0;
1225  state->scan = state->gaps;
1226  while (state->scan) {
1227  state->maxcount = max(state->maxcount,
1228  state->scan->count);
1229  if (state->scan->count > SAMPLES) {
1230  remote->gap = calc_signal(state->scan);
1231  free_lengths(&(state->gaps));
1232  return STS_GAP_FOUND;
1233  }
1234  state->scan = state->scan->next;
1235  }
1236  if (state->maxcount > state->lastmaxcount) {
1237  state->lastmaxcount = state->maxcount;
1238  return STS_GAP_GOT_ONE_PRESS;
1239  }
1240  } else {
1241  state->flag = 1;
1242  }
1243  state->last = state->end;
1244  return STS_GAP_AGAIN;
1245 }
1246 
1247 
1249 int needs_toggle_mask(struct ir_remote* remote)
1250 {
1251  struct ir_ncode* codes;
1252 
1253  if (!is_rc6(remote))
1254  return 0;
1255  if (remote->codes) {
1256  codes = remote->codes;
1257  while (codes->name != NULL) {
1258  if (codes->next)
1259  /* asume no toggle bit mask when key
1260  * sequences are used */
1261  return 0;
1262  codes++;
1263  }
1264  }
1265  return 1;
1266 }
1267 
1268 
1269 /* Compute lengths from four recorded signals. */
1270 static void compute_lengths_4_signals(void)
1271 {
1272  add_length(&first_repeatp, signals[0]);
1273  merge_lengths(first_repeatp);
1274  add_length(&first_repeats, signals[1]);
1275  merge_lengths(first_repeats);
1276  add_length(&first_trail, signals[2]);
1277  merge_lengths(first_trail);
1278  add_length(&first_repeat_gap, signals[3]);
1279  merge_lengths(first_repeat_gap);
1280 }
1281 
1282 
1283 /* Compute lengths from six recorded signals. */
1284 static void compute_lengths_6_signals(void)
1285 {
1286  add_length(&first_headerp, signals[0]);
1287  merge_lengths(first_headerp);
1288  add_length(&first_headers, signals[1]);
1289  merge_lengths(first_headers);
1290  add_length(&first_repeatp, signals[2]);
1291  merge_lengths(first_repeatp);
1292  add_length(&first_repeats, signals[3]);
1293  merge_lengths(first_repeats);
1294  add_length(&first_trail, signals[4]);
1295  merge_lengths(first_trail);
1296  add_length(&first_repeat_gap, signals[5]);
1297  merge_lengths(first_repeat_gap);
1298 }
1299 
1300 /* Compute lengths from more than six recorded signals. */
1301 static void compute_lengths_many_signals(struct lengths_state* state)
1302 {
1303  int i;
1304 
1305  add_length(&first_1lead, signals[0]);
1306  merge_lengths(first_1lead);
1307  for (i = 2; i < state->count - 2; i++) {
1308  if (i % 2) {
1309  add_length(&first_space, signals[i]);
1310  merge_lengths(first_space);
1311  } else {
1312  add_length(&first_pulse, signals[i]);
1313  merge_lengths(first_pulse);
1314  }
1315  }
1316  add_length(&first_trail, signals[state->count - 2]);
1317  merge_lengths(first_trail);
1318  lengths[state->count - 2]++;
1319  add_length(&first_signal_length, state->sum - state->data);
1320  merge_lengths(first_signal_length);
1321  if (state->first_signal == 1
1322  || (first_length > 2
1323  && first_length - 2 != state->count - 2)) {
1324  add_length(&first_3lead, signals[2]);
1325  merge_lengths(first_3lead);
1326  add_length(&first_headerp, signals[0]);
1327  merge_lengths(first_headerp);
1328  add_length(&first_headers, signals[1]);
1329  merge_lengths(first_headers);
1330  }
1331  if (state->first_signal == 1) {
1332  first_lengths++;
1333  first_length = state->count - 2;
1334  state->header = signals[0] + signals[1];
1335  } else if (state->first_signal == 0
1336  && first_length - 2 == state->count - 2) {
1337  lengths[state->count - 2]--;
1338  lengths[state->count - 2 + 2]++;
1339  second_lengths++;
1340  }
1341 }
1342 
1343 
1344 static struct lengths* scan_gap1(struct lengths_state* state,
1345  struct ir_remote* remote,
1346  int* maxcount,
1347  enum lengths_status* again)
1348 {
1349  struct lengths* scan;
1350 
1351  for (scan = first_sum; scan; scan = scan->next) {
1352  *maxcount = max(*maxcount, scan->count);
1353  if (scan->count > SAMPLES) {
1354  remote->gap = calc_signal(scan);
1355  remote->flags |= CONST_LENGTH;
1356  state->mode = MODE_HAVE_GAP;
1357  log_debug("Found gap: %u", remote->gap);
1358  *again = STS_LEN_AGAIN_INFO;
1359  break;
1360  }
1361  }
1362  return scan;
1363 }
1364 
1365 
1366 static struct lengths* scan_gap2(struct lengths_state* state,
1367  struct ir_remote* remote,
1368  int* maxcount,
1369  enum lengths_status* again)
1370 {
1371  struct lengths* scan;
1372 
1373  for (scan = first_gap; scan; scan = scan->next) {
1374  *maxcount = max(*maxcount, scan->count);
1375  if (scan->count > SAMPLES) {
1376  remote->gap = calc_signal(scan);
1377  state->mode = MODE_HAVE_GAP;
1378  log_debug("Found gap: %u", remote->gap);
1379  *again = STS_LEN_AGAIN_INFO;
1380  break;
1381  }
1382  }
1383  return scan;
1384 }
1385 
1386 
1387 enum lengths_status get_lengths(struct lengths_state* state,
1388  struct ir_remote* remote,
1389  int force, int interactive)
1390 {
1391  struct lengths* scan;
1392  int maxcount = 0;
1393  static int lastmaxcount = 0;
1394  enum lengths_status again = STS_LEN_AGAIN;
1395 
1396  state->data = curr_driver->readdata(10000000);
1397  if (!state->data) {
1398  state->retval = 0;
1399  return STS_LEN_TIMEOUT;
1400  }
1401  state->count++;
1402  if (state->mode == MODE_GET_GAP) {
1403  state->sum += state->data & PULSE_MASK;
1404  if (state->average == 0 && is_space(state->data)) {
1405  if (state->data > 100000) {
1406  state->sum = 0;
1407  return STS_LEN_AGAIN;
1408  }
1409  state->average = state->data;
1410  state->maxspace = state->data;
1411  } else if (is_space(state->data)) {
1412  if (state->data > MIN_GAP
1413  || state->data > 100 * state->average
1414  /* this MUST be a gap */
1415  || (state->data >= 5000 && count_spaces > 10
1416  && state->data > 5 * state->average)
1417  || (state->data < 5000 && count_spaces > 10
1418  && state->data > 5 * state->maxspace / 2)) {
1419  add_length(&first_sum, state->sum);
1420  merge_lengths(first_sum);
1421  add_length(&first_gap, state->data);
1422  merge_lengths(first_gap);
1423  state->sum = 0;
1424  count_spaces = 0;
1425  state->average = 0;
1426  state->maxspace = 0;
1427 
1428  maxcount = 0;
1429  scan = scan_gap1(state,
1430  remote,
1431  &maxcount,
1432  &again);
1433  if (scan == NULL) {
1434  scan = scan_gap2(state,
1435  remote,
1436  &maxcount,
1437  &again);
1438  }
1439  if (scan != NULL) {
1440  state->mode = MODE_HAVE_GAP;
1441  state->sum = 0;
1442  state->count = 0;
1443  state->remaining_gap =
1444  is_const(remote) ?
1445  (remote->gap >
1446  state->data ?
1447  remote->gap - state->data : 0)
1448  : (has_repeat_gap(remote) ?
1449  remote->
1450  repeat_gap : remote->gap);
1451  if (force) {
1452  state->retval = 0;
1453  return STS_LEN_RAW_OK;
1454  }
1455  return STS_LEN_AGAIN_INFO;
1456  }
1457  lastmaxcount = maxcount;
1458  state->keypresses = lastmaxcount;
1459  return again;
1460  }
1461  state->average =
1462  (state->average * count_spaces + state->data)
1463  / (count_spaces + 1);
1464  count_spaces++;
1465  if (state->data > state->maxspace)
1466  state->maxspace = state->data;
1467  }
1468  if (state->count > SAMPLES * MAX_SIGNALS * 2) {
1469  state->retval = 0;
1470  return STS_LEN_NO_GAP_FOUND;
1471  }
1472  state->keypresses = lastmaxcount;
1473  return STS_LEN_AGAIN;
1474  } else if (state->mode == MODE_HAVE_GAP) {
1475  if (state->count <= MAX_SIGNALS) {
1476  signals[state->count - 1] = state->data & PULSE_MASK;
1477  } else {
1478  state->retval = 0;
1479  return STS_LEN_TOO_LONG;
1480  }
1481  if (is_const(remote))
1482  state->remaining_gap =
1483  remote->gap > state->sum ?
1484  remote->gap - state->sum : 0;
1485  else
1486  state->remaining_gap = remote->gap;
1487  state->sum += state->data & PULSE_MASK;
1488 
1489  if (state->count > 2
1490  && ((state->data & PULSE_MASK) >=
1491  state->remaining_gap * (100 - eps) / 100
1492  || (state->data & PULSE_MASK) >=
1493  state->remaining_gap - aeps)) {
1494  if (is_space(state->data)) {
1495  /* signal complete */
1496  state->keypresses += 1;
1497  if (state->count == 4) {
1498  count_3repeats++;
1499  compute_lengths_4_signals();
1500  } else if (state->count == 6) {
1501  count_5repeats++;
1502  compute_lengths_6_signals();
1503  } else if (state->count > 6) {
1504  count_signals++;
1505  compute_lengths_many_signals(state);
1506  }
1507  state->count = 0;
1508  state->sum = 0;
1509  }
1510  /* such long pulses may appear with
1511  * crappy hardware (receiver? / remote?)
1512  */
1513  else {
1514  remote->gap = 0;
1515  return STS_LEN_NO_GAP_FOUND;
1516  }
1517 
1518  if (count_signals >= SAMPLES) {
1519  get_scheme(remote, interactive);
1520  if (!get_header_length(remote, interactive)
1521  || !get_trail_length(remote, interactive)
1522  || !get_lead_length(remote, interactive)
1523  || !get_repeat_length(remote, interactive)
1524  || !get_data_length(remote, interactive))
1525  state->retval = 0;
1526  return state->retval ==
1527  0 ? STS_LEN_FAIL : STS_LEN_OK;
1528  }
1529  if ((state->data & PULSE_MASK) <=
1530  (state->remaining_gap + state->header) *
1531  (100 + eps) / 100
1532  || (state->data & PULSE_MASK) <=
1533  (state->remaining_gap + state->header) + aeps) {
1534  state->first_signal = 0;
1535  state->header = 0;
1536  } else {
1537  state->first_signal = 1;
1538  }
1539  }
1540  }
1541  return STS_LEN_AGAIN;
1542 }
1543 
1544 
1545 enum toggle_status get_toggle_bit_mask(struct toggle_state* state,
1546  struct ir_remote* remote)
1547 {
1548  struct decode_ctx_t decode_ctx = { 0 };
1549  int i;
1550  ir_code mask;
1551 
1552  if (!state->inited) {
1553  sleep(1);
1554  while (availabledata())
1555  curr_driver->rec_func(NULL);
1556  state->inited = 1;
1557  }
1558  if (state->retries <= 0) {
1559  if (!state->found)
1560  return STS_TGL_NOT_FOUND;
1561  if (state->seq > 0) {
1562  remote->min_repeat = state->repeats / state->seq;
1563  log_debug("min_repeat=%d",
1564  remote->min_repeat);
1565  }
1566  return STS_TGL_FOUND;
1567  }
1568  if (!mywaitfordata(10000000))
1569  return STS_TGL_TIMEOUT;
1570  curr_driver->rec_func(remote);
1571  if (is_rc6(remote) && remote->rc6_mask == 0) {
1572  for (i = 0, mask = 1; i < remote->bits; i++, mask <<= 1) {
1573  remote->rc6_mask = mask;
1574  state->success =
1575  curr_driver->decode_func(remote, &decode_ctx);
1576  if (state->success) {
1577  remote->min_remaining_gap =
1578  decode_ctx.min_remaining_gap;
1579  remote->max_remaining_gap =
1580  decode_ctx.max_remaining_gap;
1581  break;
1582  }
1583  }
1584  if (!state->success)
1585  remote->rc6_mask = 0;
1586  } else {
1587  state->success =
1588  curr_driver->decode_func(remote, &decode_ctx);
1589  if (state->success) {
1590  remote->min_remaining_gap =
1591  decode_ctx.min_remaining_gap;
1592  remote->max_remaining_gap =
1593  decode_ctx.max_remaining_gap;
1594  }
1595  }
1596  if (state->success) {
1597  if (state->flag == 0) {
1598  state->flag = 1;
1599  state->first = decode_ctx.code;
1600  } else if (!decode_ctx.repeat_flag
1601  || decode_ctx.code != state->last) {
1602  state->seq++;
1603  mask = state->first ^ decode_ctx.code;
1604  if (!state->found && mask) {
1605  set_toggle_bit_mask(remote, mask);
1606  state->found = 1;
1607  if (state->seq > 0)
1608  remote->min_repeat =
1609  state->repeats / state->seq;
1610  }
1611  state->retries--;
1612  state->last = decode_ctx.code;
1613  return STS_TGL_GOT_ONE_PRESS;
1614  }
1615  state->repeats++;
1616  state->last = decode_ctx.code;
1617  } else {
1618  state->retries--;
1619  while (availabledata())
1620  curr_driver->rec_func(NULL);
1621  }
1622  return STS_TGL_AGAIN;
1623 }
1624 
1625 
1627 int analyse_get_lengths(struct lengths_state* lengths_state)
1628 {
1629  enum lengths_status status = STS_LEN_AGAIN;
1630 
1631  while (status == STS_LEN_AGAIN) {
1632  status = get_lengths(lengths_state, &remote, 0, 0);
1633  switch (status) {
1634  case STS_LEN_AGAIN_INFO:
1635  status = STS_LEN_AGAIN;
1636  break;
1637  case STS_LEN_AGAIN:
1638  break;
1639  case STS_LEN_OK:
1640  break;
1641  case STS_LEN_FAIL:
1642  log_error("get_lengths() failure");
1643  return 0;
1644  case STS_LEN_RAW_OK:
1645  log_error("raw analyse result?!");
1646  return 0;
1647  case STS_LEN_TIMEOUT:
1648  log_error("analyse timeout?!");
1649  return 0;
1650  case STS_LEN_NO_GAP_FOUND:
1651  log_error("analyse, no gap?!");
1652  return 0;
1653  case STS_LEN_TOO_LONG:
1654  log_error("analyse, signal too long?!");
1655  return 0;
1656  default:
1657  log_error("Cannot read raw data (%d)",
1658  status);
1659  return 0;
1660  }
1661  }
1662  return 1;
1663 }
1664 
1665 
1667 int analyse_remote(struct ir_remote* raw_data, const struct opts* opts)
1668 {
1669  struct ir_ncode* codes;
1670  struct decode_ctx_t decode_ctx;
1671  struct lengths_state lengths_state;
1672  int code;
1673  int code2;
1674  struct ir_ncode* new_codes;
1675  size_t new_codes_count = 100;
1676  int new_index = 0;
1677  int ret;
1678 
1679  if (!is_raw(raw_data)) {
1680  log_error("remote %s not in raw mode, ignoring",
1681  raw_data->name);
1682  return 0;
1683  }
1684  flushhw();
1685  aeps = raw_data->aeps;
1686  eps = raw_data->eps;
1687  emulation_data = raw_data;
1688  next_code = NULL;
1689  current_code = NULL;
1690  current_index = 0;
1691  memset(&remote, 0, sizeof(remote));
1692  lengths_state_init(&lengths_state);
1693  if (!analyse_get_lengths(&lengths_state))
1694  return 0;
1695 
1696  if (is_rc6(&remote) && remote.bits >= 5)
1697  /* have to assume something as it's very difficult to
1698  * extract the rc6_mask from the data that we have */
1699  remote.rc6_mask = ((ir_code)0x1ll) << (remote.bits - 5);
1700 
1701  remote.name = raw_data->name;
1702  remote.freq = raw_data->freq;
1703 
1704  new_codes = malloc(new_codes_count * sizeof(*new_codes));
1705  if (new_codes == NULL) {
1706  log_error("Out of memory");
1707  return 0;
1708  }
1709  memset(new_codes, 0, new_codes_count * sizeof(*new_codes));
1710  codes = raw_data->codes;
1711  while (codes->name != NULL) {
1712  // printf("decoding %s\n", codes->name);
1713  current_code = NULL;
1714  current_index = 0;
1715  next_code = codes;
1716 
1717  rec_buffer_init();
1718 
1719  ret = receive_decode(&remote, &decode_ctx);
1720  if (!ret) {
1721  log_warn(
1722  "Decoding of %s failed", codes->name);
1723  } else {
1724  if (new_index + 1 >= new_codes_count) {
1725  struct ir_ncode* renew_codes;
1726 
1727  new_codes_count *= 2;
1728  renew_codes =
1729  realloc(new_codes,
1730  new_codes_count *
1731  sizeof(*new_codes));
1732  if (renew_codes == NULL) {
1733  log_error("Out of memory");
1734  free(new_codes);
1735  return 0;
1736  }
1737  memset(&new_codes[new_codes_count / 2],
1738  0,
1739  new_codes_count / 2 *
1740  sizeof(*new_codes));
1741  new_codes = renew_codes;
1742  }
1743 
1744  rec_buffer_clear();
1745  code = decode_ctx.code;
1746  ret = receive_decode(&remote, &decode_ctx);
1747  code2 = decode_ctx.code;
1748  decode_ctx.code = code;
1749  if (ret && code2 != decode_ctx.code) {
1750  new_codes[new_index].next =
1751  malloc(IR_CODE_NODE_SIZE);
1752  if (new_codes[new_index].next) {
1753  memset(new_codes[new_index].next,
1754  0,
1755  IR_CODE_NODE_SIZE);
1756  new_codes[new_index].next->code =
1757  code2;
1758  }
1759  }
1760  new_codes[new_index].name = codes->name;
1761  new_codes[new_index].code = decode_ctx.code;
1762  new_index++;
1763  }
1764  codes++;
1765  }
1766  new_codes[new_index].name = NULL;
1767  remote.codes = new_codes;
1768  fprint_remotes(stdout, &remote, opts->commandline);
1769  remote.codes = NULL;
1770  free(new_codes);
1771  return 1;
1772 }
1773 
1774 
1776 int do_analyse(const struct opts* opts, struct main_state* state)
1777 {
1778  FILE* f;
1779  struct ir_remote* r;
1780 
1781  memcpy((void*)curr_driver, &hw_emulation, sizeof(struct driver));
1782  f = fopen(opts->filename, "r");
1783  if (f == NULL) {
1784  fprintf(stderr, "Cannot open file: %s\n", opts->filename);
1785  return 0;
1786  }
1787  r = read_config(f, opts->filename);
1788  if (r == NULL) {
1789  fprintf(stderr, "Cannot parse file: %s\n", opts->filename);
1790  return 0;
1791  }
1792  for (; r != NULL; r = r->next) {
1793  if (!is_raw(r)) {
1794  log_error("remote %s not in raw mode, ignoring",
1795  r->name);
1796  continue;
1797  }
1798  analyse_remote(r, opts);
1799  }
1800  return 1;
1801 }
1802 
1803 
1804 ssize_t raw_read(void* buffer, size_t size, unsigned int timeout_us)
1805 {
1806  if (!mywaitfordata(timeout_us))
1807  return 0;
1808  return read(curr_driver->fd, buffer, size);
1809 }
1810 
1811 
1812 static int raw_data_ok(struct button_state* btn_state)
1813 {
1814  int r;
1815  int ref;
1816 
1817  if (!is_space(btn_state->data)) {
1818  r = 0;
1819  } else if (is_const(&remote)) {
1820  if (remote.gap > btn_state->sum) {
1821  ref = (remote.gap - btn_state->sum);
1822  ref *= (100 - remote.eps);
1823  ref /= 100;
1824  } else {
1825  ref = 0;
1826  }
1827  r = btn_state->data > ref;
1828  } else {
1829  r = btn_state->data > (remote.gap * (100 - remote.eps)) / 100;
1830  }
1831  return r;
1832 }
1833 
1834 
1835 enum button_status record_buttons(struct button_state* btn_state,
1836  enum button_status last_status,
1837  struct main_state* state,
1838  const struct opts* opts)
1839 {
1840  const char* const MSG_BAD_LENGTH =
1841  "Signal length is %d\n"
1842  "That's weird because the signal length must be odd!\n";
1843  ir_code code2;
1844  int decode_ok;
1845  uint32_t timeout;
1846  int retries;
1847  struct ir_remote* my_remote;
1848  FILE* f;
1849  enum button_status sts;
1850 
1851  if (btn_state->no_data) {
1852  btn_state->no_data = 0;
1853  return STS_BTN_TIMEOUT;
1854  }
1855  switch (last_status) {
1856  case STS_BTN_INIT:
1857  return STS_BTN_GET_NAME;
1858  case STS_BTN_GET_NAME:
1859  if (strchr(btn_state->buffer, ' ') != NULL) {
1860  btn_state_set_message(
1861  btn_state,
1862  "The name must not contain any whitespace.");
1863  return STS_BTN_SOFT_ERROR;
1864  }
1865  if (strchr(btn_state->buffer, '\t') != NULL) {
1866  btn_state_set_message(
1867  btn_state,
1868  "The name must not contain any whitespace.");
1869  return STS_BTN_SOFT_ERROR;
1870  }
1871  if (strcasecmp(btn_state->buffer, "begin") == 0) {
1872  btn_state_set_message(
1873  btn_state,
1874  "'%s' is not allowed as button name\n",
1875  btn_state->buffer);
1876  return STS_BTN_SOFT_ERROR;
1877  }
1878  if (strcasecmp(btn_state->buffer, "end") == 0) {
1879  btn_state_set_message(
1880  btn_state,
1881  "'%s' is not allowed as button name\n",
1882  btn_state->buffer);
1883  return STS_BTN_SOFT_ERROR;
1884  }
1885  if (strlen(btn_state->buffer) == 0)
1886  return STS_BTN_RECORD_DONE;
1887  if (!opts->disable_namespace
1888  && !is_in_namespace(btn_state->buffer)) {
1889  btn_state_set_message(
1890  btn_state,
1891  "'%s' is not in name space"
1892  " (use --disable-namespace to override)\n",
1893  btn_state->buffer);
1894  return STS_BTN_SOFT_ERROR;
1895  }
1896  return STS_BTN_INIT_DATA;
1897  case STS_BTN_INIT_DATA:
1898  if (opts->force)
1899  flushhw();
1900  else
1901  while (availabledata())
1902  curr_driver->rec_func(NULL);
1903  if (curr_driver->fd == -1)
1904  curr_driver->init_func();
1905  return opts->force ? STS_BTN_GET_RAW_DATA : STS_BTN_GET_DATA;
1906  case STS_BTN_GET_DATA:
1907  for (retries = RETRIES; retries > 0; ) {
1908  if (!mywaitfordata(10000000)) {
1909  btn_state->no_data = 1;
1910  return STS_BTN_TIMEOUT;
1911  }
1912  decode_ok = 0;
1913  last_remote = NULL;
1914  sleep(1);
1915  while (availabledata()) {
1916  curr_driver->rec_func(NULL);
1917  if (curr_driver->decode_func(
1918  &remote,
1919  &(state->decode_ctx))) {
1920  decode_ok = 1;
1921  break;
1922  }
1923  }
1924  if (!decode_ok) {
1925  if (!resethw(btn_state->started_as_root)) {
1926  btn_state_set_message(
1927  btn_state,
1928  "Could not reset hardware.\n");
1929  return STS_BTN_HARD_ERROR;
1930  }
1931  btn_state_set_message(btn_state,
1932  "Cannot decode data\n");
1933  flushhw();
1934  return STS_BTN_SOFT_ERROR;
1935  }
1936  btn_state->ncode.name = btn_state->buffer;
1937  btn_state->ncode.code = state->decode_ctx.code;
1938  curr_driver->rec_func(NULL);
1939  if (!curr_driver->decode_func(&remote,
1940  &(state->decode_ctx))) {
1941  code2 = state->decode_ctx.code;
1942  state->decode_ctx.code = btn_state->ncode.code;
1943  if (state->decode_ctx.code != code2) {
1944  btn_state->ncode.next =
1945  malloc(IR_CODE_NODE_SIZE);
1946  if (btn_state->ncode.next) {
1947  memset(btn_state->ncode.next,
1948  0,
1949  IR_CODE_NODE_SIZE);
1950  btn_state->ncode.next->code =
1951  code2;
1952  }
1953  }
1954  }
1955  break;
1956  }
1957  return STS_BTN_BUTTON_DONE;
1958  case STS_BTN_GET_RAW_DATA:
1959  btn_state->count = 0;
1960  btn_state->sum = 0;
1961  while (btn_state->count < MAX_SIGNALS) {
1962  if (btn_state->count == 0)
1963  timeout = 10000000;
1964  else
1965  timeout = remote.gap * 5;
1966  btn_state->data = curr_driver->readdata(timeout);
1967  if (!btn_state->data) {
1968  if (btn_state->count == 0)
1969  return STS_BTN_TIMEOUT;
1970  btn_state->data = remote.gap;
1971  }
1972  if (btn_state->count == 0) {
1973  if (!is_space(btn_state->data)
1974  || btn_state->data <
1975  remote.gap - remote.gap * remote.eps /
1976  100) {
1977  sleep(3);
1978  flushhw();
1979  btn_state->count = 0;
1980  btn_state_set_message(
1981  btn_state,
1982  "Something went wrong.");
1983  return STS_BTN_SOFT_ERROR;
1984  }
1985  } else {
1986  if (raw_data_ok(btn_state)) {
1987  log_info("Got it.\n");
1988  log_info("Signal length is %d\n",
1989  btn_state->count - 1);
1990  if (btn_state->count % 2) {
1991  btn_state_set_message(
1992  btn_state,
1993  MSG_BAD_LENGTH,
1994  btn_state->count - 1);
1995  sleep(3);
1996  flushhw();
1997  btn_state->count = 0;
1998  return STS_BTN_SOFT_ERROR;
1999  }
2000  btn_state->ncode.name =
2001  btn_state->buffer;
2002  btn_state->ncode.length =
2003  btn_state->count - 1;
2004  btn_state->ncode.signals = signals;
2005  break;
2006  }
2007  signals[btn_state->count - 1] =
2008  btn_state->data & PULSE_MASK;
2009  btn_state->sum +=
2010  btn_state->data & PULSE_MASK;
2011  }
2012  btn_state->count++;
2013  }
2014  if (btn_state->count == MAX_SIGNALS) {
2015  btn_state_set_message(btn_state,
2016  "Signal is too long.\n");
2017  return STS_BTN_SOFT_ERROR;
2018  }
2019  return STS_BTN_BUTTON_DONE;
2020  case STS_BTN_RECORD_DONE:
2021  if (is_raw(&remote))
2022  return STS_BTN_ALL_DONE;
2023  if (!resethw(btn_state->started_as_root)) {
2024  btn_state_set_message(btn_state,
2025  "Could not reset hardware.");
2026  return STS_BTN_HARD_ERROR;
2027  }
2028  return STS_BTN_BUTTONS_DONE;
2029  case STS_BTN_BUTTONS_DONE:
2030  f = fopen(opts->tmpfile, "r");
2031  if (f == NULL) {
2032  btn_state_set_message(btn_state,
2033  "Could not reopen config file");
2034  return STS_BTN_HARD_ERROR;
2035  }
2036  my_remote = read_config(f, opts->filename);
2037  fclose(f);
2038  if (my_remote == NULL) {
2039  btn_state_set_message(
2040  btn_state,
2041  "Internal error: "
2042  "config file contains no valid remote");
2043  return STS_BTN_HARD_ERROR;
2044  }
2045  if (my_remote == (void*)-1) {
2046  btn_state_set_message(
2047  btn_state,
2048  "Internal error: "
2049  "Reading of config file failed");
2050  return STS_BTN_HARD_ERROR;
2051  }
2052  sts = STS_BTN_ALL_DONE;
2053  if (opts->force) {
2054  remote = *my_remote;
2055  return sts;
2056  }
2057  if (!has_toggle_bit_mask(my_remote)) {
2058  if (!opts->using_template
2059  && strcmp(curr_driver->name, "devinput") != 0) {
2060  remote = *(my_remote);
2061  sts = STS_BTN_GET_TOGGLE_BITS;
2062  }
2063  } else {
2064  set_toggle_bit_mask(my_remote,
2065  my_remote->toggle_bit_mask);
2066  if (curr_driver->deinit_func)
2067  curr_driver->deinit_func();
2068  }
2069  if (!opts->update) {
2070  get_pre_data(my_remote);
2071  get_post_data(my_remote);
2072  }
2073  remote = *my_remote;
2074  return sts;
2075  case STS_BTN_BUTTON_DONE:
2076  return STS_BTN_BUTTON_DONE;
2077  case STS_BTN_HARD_ERROR:
2078  return STS_BTN_HARD_ERROR;
2079  default:
2080  btn_state_set_message(btn_state,
2081  "record_buttons(): bad state: %d\n",
2082  last_status);
2083  return STS_BTN_HARD_ERROR;
2084  }
2085 }
2086 
2087 
2089 void config_file_setup(struct main_state* state, const struct opts* opts)
2090 {
2091  state->fout = fopen(opts->tmpfile, "w");
2092  if (state->fout == NULL) {
2093  log_error("Could not open new config file %s", tmpfile);
2094  log_perror_err("While opening temporary file for write");
2095  return;
2096  }
2097  fprint_copyright(state->fout);
2098  fprint_comment(state->fout, &remote, opts->commandline);
2099  fprint_remote_head(state->fout, &remote);
2100  fprint_remote_signal_head(state->fout, &remote);
2101 }
2102 
2103 
2104 
2106 int config_file_finish(struct main_state* state, const struct opts* opts)
2107 {
2108  state->fout = fopen(opts->filename, "w");
2109  if (state->fout == NULL) {
2110  log_perror_err("While opening \"%s\" for write",
2111  opts->filename);
2112  return 0;
2113  }
2114  fprint_copyright(state->fout);
2115  fprint_remotes(state->fout, &remote, opts->commandline);
2116  return 1;
2117 }
gap_state_init
void gap_state_init(struct gap_state *state)
Initiate a pristine gap_state.
Definition: irrecord.c:189
ir_remote::min_remaining_gap
lirc_t min_remaining_gap
remember gap for CONST_LENGTH remotes
Definition: ir_remote_types.h:232
rec_buffer_init
void rec_buffer_init(void)
Clear internal buffer to pristine state.
Definition: receive.c:217
last_remote
struct ir_remote * last_remote
TODO.
Definition: ir_remote.c:59
ir_remote
One remote as represented in the configuration file.
Definition: ir_remote_types.h:155
ir_remote::bits
int bits
bits (length of code)
Definition: ir_remote_types.h:159
default_close
int default_close(void)
For now, a placeholder.
Definition: driver.c:52
lengths_status
lengths_status
Return from one attempt to determine lengths in get_lengths().
Definition: irrecord.h:91
button_state::message
char message[128]
Error message, valid on STS_BTN_*_ERROR.
Definition: irrecord.h:240
free_all_lengths
void free_all_lengths(void)
Free heap data allocated by get_lengths().
Definition: irrecord.c:664
RC6
#define RC6
IR data follows RC6 protocol.
Definition: ir_remote_types.h:111
ir_code_node
An ir_code for entering into (singly) linked lists, i.e.
Definition: ir_remote_types.h:53
toggle_state
Private state in get_togggle_bit_mask().
Definition: irrecord.h:220
opts
Parsed run-time options, reflects long_options and the command line, mostly a const object...
Definition: irrecord.h:153
toggle_status
toggle_status
Return from one attempt in get_toggle_bit_mask().
Definition: irrecord.h:114
ir_remote::freq
unsigned int freq
modulation frequency
Definition: ir_remote_types.h:208
driver::fd
int fd
Set by the driver after init().
Definition: driver.h:146
curr_driver
const struct driver *const curr_driver
Read-only access to drv for client code.
Definition: driver.c:34
ir_remote::post_data
ir_code post_data
data which the remote sends after actual keycode
Definition: ir_remote_types.h:187
ir_remote::plead
lirc_t plead
leading pulse
Definition: ir_remote_types.h:179
button_status
button_status
Return from one pass in record_buttons().
Definition: irrecord.h:124
log_debug
#define log_debug(fmt,...)
Log a debug message.
Definition: lirc_log.h:124
driver::rec_func
char *(*const rec_func)(struct ir_remote *remotes)
Receive data from remote.
Definition: driver.h:201
get_pre_data
void get_pre_data(struct ir_remote *remote)
Test hook: Extract remote->pre_data from remote->bits.
Definition: irrecord.c:269
ir_ncode::next
struct ir_code_node * next
Linked list of the subsequent ir_code's, after the first one.
Definition: ir_remote_types.h:79
ir_remote::name
const char * name
name of remote control
Definition: ir_remote_types.h:156
SPACE_ENC
#define SPACE_ENC
IR data is space encoded.
Definition: ir_remote_types.h:113
ir_ncode::signals
lirc_t * signals
(private)
Definition: ir_remote_types.h:75
get_gap_status
get_gap_status
Return form one attempt to get gap in get_gap().
Definition: irrecord.h:104
ir_remote::eps
int eps
eps (relative tolerance)
Definition: ir_remote_types.h:161
lengths_state::keypresses
int keypresses
Number of counted button presses.
Definition: irrecord.h:203
analyse_remote
int analyse_remote(struct ir_remote *raw_data, const struct opts *opts)
Implement the analyse task, return 1 for ok, 0 for errors.
Definition: irrecord.c:1667
gap_state
Private state in get_gap_length().
Definition: irrecord.h:185
log_warn
#define log_warn(fmt,...)
Log a warning message.
Definition: lirc_log.h:109
button_state
State while recording buttons, privates besides commented.
Definition: irrecord.h:236
invert_data
void invert_data(struct ir_remote *remote)
Test hook: Invert all data items in remote.
Definition: irrecord.c:424
receive_decode
int receive_decode(struct ir_remote *remote, struct decode_ctx_t *ctx)
Decode data from remote.
Definition: receive.c:1054
ir_remote::ptrail
lirc_t ptrail
trailing pulse
Definition: ir_remote_types.h:180
ir_remote::pre_data_bits
int pre_data_bits
length of pre_data
Definition: ir_remote_types.h:184
PACKET_SIZE
#define PACKET_SIZE
IR transmission packet size.
Definition: lirc_config.h:84
logchannel_t
logchannel_t
Log channels used to filter messages.
Definition: lirc_log.h:53
toggle_state_init
void toggle_state_init(struct toggle_state *state)
Initiate a pristine toggle_state.
Definition: irrecord.c:211
ir_ncode::name
char * name
Name of command.
Definition: ir_remote_types.h:66
driver::readdata
lirc_t(*const readdata)(lirc_t timeout)
Get length of next pulse/space from hardware.
Definition: driver.h:222
driver::rec_mode
uint32_t rec_mode
Possible values are: LIRC_MODE_RAW, LIRC_MODE_PULSE, LIRC_MODE_MODE2, LIRC_MODE_LIRCCODE.
Definition: driver.h:161
irrecord.h
Library part of irrecord, functions to identify unknown remotes.
ir_remote::post_data_bits
int post_data_bits
length of post_data
Definition: ir_remote_types.h:186
get_gap_length
enum get_gap_status get_gap_length(struct gap_state *state, struct ir_remote *remote)
Try to find out gap length, returning gap_status.
Definition: irrecord.c:1207
ir_remote::toggle_mask
ir_code toggle_mask
Sharp (?) error detection scheme.
Definition: ir_remote_types.h:210
log_error
#define log_error(fmt,...)
Log an error message.
Definition: lirc_log.h:104
needs_toggle_mask
int needs_toggle_mask(struct ir_remote *remote)
Return true if a given remote needs to compute toggle_mask.
Definition: irrecord.c:1249
ir_remote::pre_data
ir_code pre_data
data which the remote sends before actual keycode
Definition: ir_remote_types.h:185
raw_read
ssize_t raw_read(void *buffer, size_t size, unsigned int timeout_us)
Absolute error tolerance (us).
Definition: irrecord.c:1804
aeps
lirc_t aeps
Error tolerance in per cent.
Definition: irrecord.c:63
ir_remote::gap
uint32_t gap
time between signals in usecs
Definition: ir_remote_types.h:191
for_each_remote
void for_each_remote(struct ir_remote *remotes, remote_func func)
Unconditionally apply func(remote) for all items in remotes list.
Definition: irrecord.c:491
ir_remote::sone
lirc_t sone
1
Definition: ir_remote_types.h:177
RC5
#define RC5
IR data follows RC5 protocol.
Definition: ir_remote_types.h:105
log_perror_err
#define log_perror_err(fmt,...)
perror wrapper logging with level LIRC_ERROR.
Definition: lirc_log.h:89
ir_remote::repeat_gap
uint32_t repeat_gap
time between two repeat codes if different from gap
Definition: ir_remote_types.h:193
lirc_private.h
Main include file for lirc applications.
driver::deinit_func
int(*const deinit_func)(void)
Function called when transmitting/receiving stops.
Definition: driver.h:184
btn_state_set_message
void btn_state_set_message(struct button_state *state, const char *fmt,...)
snprintf-style message formatting into state->message.
Definition: irrecord.c:97
ir_remote::shead
lirc_t shead
header
Definition: ir_remote_types.h:174
REPEAT_HEADER
#define REPEAT_HEADER
header is also sent before repeat code
Definition: ir_remote_types.h:126
flushhw
void flushhw(void)
Clear the driver input buffers.
Definition: irrecord.c:139
availabledata
int availabledata(void)
Return 1 if there is available after running poll(2), else 0.
Definition: irrecord.c:118
decode_ctx_t::max_remaining_gap
lirc_t max_remaining_gap
Estimated max time of trailing gap.
Definition: ir_remote_types.h:147
decode_ctx_t::code
ir_code code
Code part, matched to code defintion.
Definition: ir_remote_types.h:143
analyse_get_lengths
int analyse_get_lengths(struct lengths_state *lengths_state)
analyse non-interactive get_lengths, returns boolean ok/fail.
Definition: irrecord.c:1627
eps
unsigned int eps
Shared list of remotes.
Definition: irrecord.c:62
CONST_LENGTH
#define CONST_LENGTH
signal length+gap is always constant
Definition: ir_remote_types.h:125
config_file_finish
int config_file_finish(struct main_state *state, const struct opts *opts)
Write the final config file.
Definition: irrecord.c:2106
NO_HEAD_REP
#define NO_HEAD_REP
no header for key repeats
Definition: ir_remote_types.h:123
button_state::ncode
struct ir_ncode ncode
Recorded button, valid on STS_BTN_BUTTON_DONE.
Definition: irrecord.h:238
ir_remote::pre_s
lirc_t pre_s
signal between pre_data and keycode
Definition: ir_remote_types.h:188
lengths_state::sum
lirc_t sum
Number of bits accounted for in signal.
Definition: irrecord.h:211
ir_remote::szero
lirc_t szero
0
Definition: ir_remote_types.h:178
remove_trail
void remove_trail(struct ir_remote *remote)
Test hook: Move remote->trail into remote->bits.
Definition: irrecord.c:463
driver
The data the driver exports i.
Definition: driver.h:136
config_file_setup
void config_file_setup(struct main_state *state, const struct opts *opts)
Write the provisionary config file.
Definition: irrecord.c:2089
main_state
Overall state in main.
Definition: irrecord.h:177
ir_ncode
IR Command, corresponding to one (command defining) line of the configuration file.
Definition: ir_remote_types.h:64
driver::code_length
const uint32_t code_length
Length in bits of the code.
Definition: driver.h:164
ir_remote::flags
int flags
flags
Definition: ir_remote_types.h:160
ir_remote::aeps
unsigned int aeps
detecting very short pulses is difficult with relative tolerance for some remotes, this is an absolute tolerance to solve this problem usually you can say 0 here.
Definition: ir_remote_types.h:162
ir_remote::srepeat
lirc_t srepeat
indicate repeating
Definition: ir_remote_types.h:182
decode_ctx_t
State describing code, pre, post + gap and repeat state.
Definition: ir_remote_types.h:142
get_lengths
enum lengths_status get_lengths(struct lengths_state *state, struct ir_remote *remote, int force, int interactive)
Try to find out pre/post etc.
Definition: irrecord.c:1387
decode_ctx_t::min_remaining_gap
lirc_t min_remaining_gap
Estimated min time of trailing gap.
Definition: ir_remote_types.h:148
drop_sudo_root
const char * drop_sudo_root(int(*set_some_uid)(uid_t))
Try to drop possible root privileges, returning new user or "" on error.
Definition: lirc-utils.c:28
ir_remote::max_remaining_gap
lirc_t max_remaining_gap
gap range
Definition: ir_remote_types.h:233
driver::init_func
int(*const init_func)(void)
Function called for initializing the driver and the hardware.
Definition: driver.h:178
remove_pre_data
void remove_pre_data(struct ir_remote *remote)
Test hook: Move remote->pre_data into remote->bits.
Definition: irrecord.c:383
remove_post_data
void remove_post_data(struct ir_remote *remote)
Test hook: Move remote->post_data into remote->bits.
Definition: irrecord.c:403
get_toggle_bit_mask
enum toggle_status get_toggle_bit_mask(struct toggle_state *state, struct ir_remote *remote)
Try to find out toggle_bit_mask, returning toggle_status.
Definition: irrecord.c:1545
driver::name
const char * name
Driver name, as listed by -H help and used as argument to i –driver.
Definition: driver.h:228
default_open
int default_open(const char *path)
Stores path in drv.device if non-null.
Definition: driver.c:37
do_analyse
int do_analyse(const struct opts *opts, struct main_state *state)
The –analyse wrapper.
Definition: irrecord.c:1776
ir_ncode::code
ir_code code
The first code of the command.
Definition: ir_remote_types.h:69
resethw
int resethw(int started_as_root)
Reset the hardware.
Definition: irrecord.c:161
driver::decode_func
int(*const decode_func)(struct ir_remote *remote, struct decode_ctx_t *ctx)
TODO.
Definition: driver.h:206
lengths_state::count
int count
Number of processed data items.
Definition: irrecord.h:206
get_post_data
void get_post_data(struct ir_remote *remote)
Test hook: Extract remote->post_data and post_data_bits from bits.
Definition: irrecord.c:327
button_state_init
void button_state_init(struct button_state *state, int started_as_root)
Initiate a pristine button_state.
Definition: irrecord.c:219
ir_remote::rc6_mask
ir_code rc6_mask
RC-6 doubles signal length of some bits.
Definition: ir_remote_types.h:211
lengths_state_init
void lengths_state_init(struct lengths_state *state)
Initiate a pristine lengths_state.
Definition: irrecord.c:195
decode_ctx_t::repeat_flag
int repeat_flag
True if code is a repeated one.
Definition: ir_remote_types.h:146
log_info
#define log_info(fmt,...)
Log an info message.
Definition: lirc_log.h:114
record_buttons
enum button_status record_buttons(struct button_state *btn_state, enum button_status last_status, struct main_state *state, const struct opts *opts)
Try to record one button, returning button_status.
Definition: irrecord.c:1835
ir_remote::toggle_bit_mask
ir_code toggle_bit_mask
previously only one bit called toggle_bit
Definition: ir_remote_types.h:195
lengths_state
State in get_lengths(), private besides commented.
Definition: irrecord.h:199
rec_buffer_clear
int rec_buffer_clear(void)
Flush the internal fifo and store a single code read from the driver in it.
Definition: receive.c:237
ir_remote::min_repeat
int min_repeat
code is repeated at least x times code sent once -> min_repeat=0
Definition: ir_remote_types.h:199
read_config
struct ir_remote * read_config(FILE *f, const char *name)
Parse a lircd.conf config file.
Definition: config_file.c:838
log_notice
#define log_notice(fmt,...)
Log a notice message.
Definition: lirc_log.h:119
ir_code
uint64_t ir_code
Denotes an internal coded representation for an IR transmission.
Definition: ir_remote_types.h:47
ir_ncode::length
int length
(private)
Definition: ir_remote_types.h:72