1 /* 2 * Copyright (C) 2014 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 #define BTSTACK_FILE__ "hfp_gsm_model.c" 39 40 // ***************************************************************************** 41 // 42 // GSM Model 43 // 44 // ***************************************************************************** 45 46 #include "btstack_config.h" 47 48 #include <stdint.h> 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 53 #include "btstack_memory.h" 54 #include "classic/core.h" 55 #include "classic/hfp.h" 56 #include "classic/hfp_gsm_model.h" 57 #include "classic/sdp_server.h" 58 #include "classic/sdp_client_rfcomm.h" 59 #include "btstack_debug.h" 60 #include "hci.h" 61 #include "hci_cmd.h" 62 #include "hci_dump.h" 63 #include "l2cap.h" 64 #include "btstack_run_loop.h" 65 66 #define HFP_GSM_MAX_NR_CALLS 3 67 #define HFP_GSM_MAX_CALL_NUMBER_SIZE 25 68 69 static hfp_gsm_call_t gsm_calls[HFP_GSM_MAX_NR_CALLS]; 70 static hfp_callsetup_status_t callsetup_status = HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS; 71 72 static uint8_t clip_type; 73 static char clip_number[HFP_GSM_MAX_CALL_NUMBER_SIZE]; 74 static char last_dialed_number[HFP_GSM_MAX_CALL_NUMBER_SIZE]; 75 76 static void hfp_gsm_handler(hfp_ag_call_event_t event, uint8_t index, uint8_t type, const char * number); 77 static inline int get_number_active_calls(void); 78 79 static void set_callsetup_status(hfp_callsetup_status_t status){ 80 callsetup_status = status; 81 if (callsetup_status != HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE) return; 82 83 int i ; 84 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 85 if (gsm_calls[i].direction == HFP_ENHANCED_CALL_DIR_OUTGOING){ 86 gsm_calls[i].enhanced_status = HFP_ENHANCED_CALL_STATUS_OUTGOING_ALERTING; 87 } 88 } 89 } 90 91 static inline void set_enhanced_call_status_active(int index_in_table){ 92 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_ACTIVE; 93 gsm_calls[index_in_table].used_slot = 1; 94 } 95 96 static inline void set_enhanced_call_status_held(int index_in_table){ 97 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_HELD; 98 gsm_calls[index_in_table].used_slot = 1; 99 } 100 101 static inline void set_enhanced_call_status_response_hold(int index_in_table){ 102 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD; 103 gsm_calls[index_in_table].used_slot = 1; 104 } 105 106 static inline void set_enhanced_call_status_initiated(int index_in_table){ 107 if (gsm_calls[index_in_table].direction == HFP_ENHANCED_CALL_DIR_OUTGOING){ 108 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_OUTGOING_DIALING; 109 } else { 110 if (get_number_active_calls() > 0){ 111 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_INCOMING_WAITING; 112 } else { 113 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_INCOMING; 114 } 115 } 116 gsm_calls[index_in_table].used_slot = 1; 117 } 118 119 static int get_enhanced_call_status(int index_in_table){ 120 if (!gsm_calls[index_in_table].used_slot) return -1; 121 return gsm_calls[index_in_table].enhanced_status; 122 } 123 124 static inline int is_enhanced_call_status_active(int index_in_table){ 125 return get_enhanced_call_status(index_in_table) == HFP_ENHANCED_CALL_STATUS_ACTIVE; 126 } 127 128 static inline int is_enhanced_call_status_initiated(int index_in_table){ 129 switch (get_enhanced_call_status(index_in_table)){ 130 case HFP_ENHANCED_CALL_STATUS_OUTGOING_DIALING: 131 case HFP_ENHANCED_CALL_STATUS_OUTGOING_ALERTING: 132 case HFP_ENHANCED_CALL_STATUS_INCOMING: 133 case HFP_ENHANCED_CALL_STATUS_INCOMING_WAITING: 134 return 1; 135 default: 136 return 0; 137 } 138 } 139 140 static void free_call_slot(int index_in_table){ 141 gsm_calls[index_in_table].used_slot = 0; 142 } 143 144 void hfp_gsm_init(void){ 145 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 146 clip_type = 0; 147 memset(clip_number, 0, sizeof(clip_number)); 148 memset(last_dialed_number, 0, sizeof(last_dialed_number)); 149 memset(gsm_calls, 0, sizeof(gsm_calls)); 150 int i; 151 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 152 free_call_slot(i); 153 } 154 } 155 156 static int get_number_calls_with_enhanced_status(hfp_enhanced_call_status_t enhanced_status){ 157 int i, count = 0; 158 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 159 if (get_enhanced_call_status(i) == (int) enhanced_status) count++; 160 } 161 return count; 162 } 163 164 static int get_call_index_with_enhanced_status(hfp_enhanced_call_status_t enhanced_status){ 165 int i ; 166 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 167 if (get_enhanced_call_status(i) == (int) enhanced_status) return i; 168 } 169 return -1; 170 } 171 172 static inline int get_initiated_call_index(void){ 173 int i ; 174 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 175 if (is_enhanced_call_status_initiated(i)) return i; 176 } 177 return -1; 178 } 179 180 static inline int get_next_free_slot(void){ 181 int i ; 182 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 183 if (!gsm_calls[i].used_slot) return i; 184 } 185 return -1; 186 } 187 188 static inline int get_active_call_index(void){ 189 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_ACTIVE); 190 } 191 192 static inline int get_held_call_index(void){ 193 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_HELD); 194 } 195 196 static inline int get_response_held_call_index(void){ 197 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD); 198 } 199 200 static inline int get_number_none_calls(void){ 201 int i, count = 0; 202 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 203 if (!gsm_calls[i].used_slot) count++; 204 } 205 return count; 206 } 207 208 static inline int get_number_active_calls(void){ 209 return get_number_calls_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_ACTIVE); 210 } 211 212 static inline int get_number_held_calls(void){ 213 return get_number_calls_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_HELD); 214 } 215 216 static inline int get_number_response_held_calls(void){ 217 return get_number_calls_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD); 218 } 219 220 static int next_call_index(void){ 221 return HFP_GSM_MAX_NR_CALLS + 1 - get_number_none_calls(); 222 } 223 224 static void hfp_gsm_set_clip(int index_in_table, uint8_t type, const char * number){ 225 uint16_t number_str_len = (uint16_t) strlen(number); 226 if (number_str_len == 0) return; 227 228 gsm_calls[index_in_table].clip_type = type; 229 int clip_number_size = btstack_min(number_str_len, HFP_GSM_MAX_CALL_NUMBER_SIZE - 1); 230 strncpy(gsm_calls[index_in_table].clip_number, number, clip_number_size); 231 gsm_calls[index_in_table].clip_number[clip_number_size] = '\0'; 232 strncpy(last_dialed_number, number, clip_number_size); 233 last_dialed_number[clip_number_size] = '\0'; 234 235 clip_type = 0; 236 memset(clip_number, 0, sizeof(clip_number)); 237 } 238 239 static void delete_call(int delete_index_in_table){ 240 int i ; 241 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 242 if (gsm_calls[i].index > gsm_calls[delete_index_in_table].index){ 243 gsm_calls[i].index--; 244 } 245 } 246 free_call_slot(delete_index_in_table); 247 248 gsm_calls[delete_index_in_table].clip_type = 0; 249 gsm_calls[delete_index_in_table].index = 0; 250 gsm_calls[delete_index_in_table].clip_number[0] = '\0'; 251 gsm_calls[delete_index_in_table].mpty = HFP_ENHANCED_CALL_MPTY_NOT_A_CONFERENCE_CALL; 252 } 253 254 255 static void create_call(hfp_enhanced_call_dir_t direction){ 256 int next_free_slot = get_next_free_slot(); 257 gsm_calls[next_free_slot].direction = direction; 258 gsm_calls[next_free_slot].index = next_call_index(); 259 set_enhanced_call_status_initiated(next_free_slot); 260 gsm_calls[next_free_slot].clip_type = 0; 261 gsm_calls[next_free_slot].clip_number[0] = '\0'; 262 gsm_calls[next_free_slot].mpty = HFP_ENHANCED_CALL_MPTY_NOT_A_CONFERENCE_CALL; 263 264 hfp_gsm_set_clip(next_free_slot, clip_type, clip_number); 265 } 266 267 268 int hfp_gsm_get_number_of_calls(void){ 269 return HFP_GSM_MAX_NR_CALLS - get_number_none_calls(); 270 } 271 272 void hfp_gsm_clear_last_dialed_number(void){ 273 memset(last_dialed_number, 0, sizeof(last_dialed_number)); 274 } 275 276 char * hfp_gsm_last_dialed_number(void){ 277 return &last_dialed_number[0]; 278 } 279 280 hfp_gsm_call_t * hfp_gsm_call(int call_index){ 281 int i; 282 283 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 284 hfp_gsm_call_t * call = &gsm_calls[i]; 285 if (call->index != call_index) continue; 286 return call; 287 } 288 return NULL; 289 } 290 291 uint8_t hfp_gsm_clip_type(void){ 292 if (clip_type != 0) return clip_type; 293 294 int initiated_call_index = get_initiated_call_index(); 295 if (initiated_call_index != -1){ 296 if (gsm_calls[initiated_call_index].clip_type != 0) { 297 return gsm_calls[initiated_call_index].clip_type; 298 } 299 } 300 301 int active_call_index = get_active_call_index(); 302 if (active_call_index != -1){ 303 if (gsm_calls[active_call_index].clip_type != 0) { 304 return gsm_calls[active_call_index].clip_type; 305 } 306 } 307 return 0; 308 } 309 310 char * hfp_gsm_clip_number(void){ 311 if (strlen(clip_number) != 0) return clip_number; 312 313 int initiated_call_index = get_initiated_call_index(); 314 if (initiated_call_index != -1){ 315 if (gsm_calls[initiated_call_index].clip_type != 0) { 316 return gsm_calls[initiated_call_index].clip_number; 317 } 318 } 319 320 int active_call_index = get_active_call_index(); 321 if (active_call_index != -1){ 322 if (gsm_calls[active_call_index].clip_type != 0) { 323 return gsm_calls[active_call_index].clip_number; 324 } 325 } 326 clip_number[0] = 0; 327 return clip_number; 328 } 329 330 hfp_call_status_t hfp_gsm_call_status(void){ 331 if (get_number_active_calls() + get_number_held_calls() + get_number_response_held_calls()){ 332 return HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT; 333 } 334 return HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS; 335 } 336 337 hfp_callheld_status_t hfp_gsm_callheld_status(void){ 338 // @note: order is important 339 if (get_number_held_calls() == 0){ 340 return HFP_CALLHELD_STATUS_NO_CALLS_HELD; 341 } 342 if (get_number_active_calls() == 0) { 343 return HFP_CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS; 344 } 345 return HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED; 346 } 347 348 hfp_callsetup_status_t hfp_gsm_callsetup_status(void){ 349 return callsetup_status; 350 } 351 352 static int hfp_gsm_response_held_active(void){ 353 return get_response_held_call_index() != -1 ; 354 } 355 356 int hfp_gsm_call_possible(void){ 357 return get_number_none_calls() > 0; 358 } 359 360 void hfp_gsm_handle_event(hfp_ag_call_event_t event){ 361 hfp_gsm_handler(event, 0, 0, NULL); 362 } 363 364 void hfp_gsm_handle_event_with_clip(hfp_ag_call_event_t event, uint8_t type, const char * number){ 365 hfp_gsm_handler(event, 0, type, number); 366 } 367 368 void hfp_gsm_handle_event_with_call_index(hfp_ag_call_event_t event, uint8_t index){ 369 hfp_gsm_handler(event, index, 0, NULL); 370 } 371 372 void hfp_gsm_handle_event_with_call_number(hfp_ag_call_event_t event, const char * number){ 373 hfp_gsm_handler(event, 0, 0, number); 374 } 375 376 static void hfp_gsm_handler(hfp_ag_call_event_t event, uint8_t index, uint8_t type, const char * number){ 377 int next_free_slot = get_next_free_slot(); 378 int current_call_index = get_active_call_index(); 379 int initiated_call_index = get_initiated_call_index(); 380 int held_call_index = get_held_call_index(); 381 int i; 382 383 switch (event){ 384 case HFP_AG_OUTGOING_CALL_INITIATED: 385 case HFP_AG_OUTGOING_REDIAL_INITIATED: 386 if (next_free_slot == -1){ 387 log_error("gsm: max call nr exceeded"); 388 return; 389 } 390 create_call(HFP_ENHANCED_CALL_DIR_OUTGOING); 391 break; 392 393 case HFP_AG_OUTGOING_CALL_REJECTED: 394 if (current_call_index != -1){ 395 delete_call(current_call_index); 396 } 397 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 398 break; 399 400 case HFP_AG_OUTGOING_CALL_ACCEPTED: 401 if (current_call_index != -1){ 402 set_enhanced_call_status_held(current_call_index); 403 } 404 set_callsetup_status(HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE); 405 break; 406 407 case HFP_AG_OUTGOING_CALL_RINGING: 408 if (current_call_index == -1){ 409 log_error("gsm: no active call"); 410 return; 411 } 412 set_callsetup_status(HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE); 413 break; 414 case HFP_AG_OUTGOING_CALL_ESTABLISHED: 415 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 416 set_enhanced_call_status_active(initiated_call_index); 417 break; 418 419 case HFP_AG_INCOMING_CALL: 420 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS) break; 421 set_callsetup_status(HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS); 422 create_call(HFP_ENHANCED_CALL_DIR_INCOMING); 423 break; 424 425 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG: 426 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 427 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 428 429 if (hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT){ 430 set_enhanced_call_status_held(current_call_index); 431 } 432 set_enhanced_call_status_active(initiated_call_index); 433 break; 434 435 case HFP_AG_HELD_CALL_JOINED_BY_AG: 436 if (hfp_gsm_call_status() != HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT) break; 437 438 // TODO: is following condition correct? Can we join incoming call before it is answered? 439 if (callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS){ 440 set_enhanced_call_status_active(initiated_call_index); 441 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 442 } else if (hfp_gsm_callheld_status() == HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED) { 443 set_enhanced_call_status_active(held_call_index); 444 } 445 446 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 447 if (is_enhanced_call_status_active(i)){ 448 gsm_calls[i].mpty = HFP_ENHANCED_CALL_MPTY_CONFERENCE_CALL; 449 } 450 } 451 break; 452 453 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF: 454 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 455 if (hfp_gsm_call_status() != HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS) break; 456 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 457 set_enhanced_call_status_active(initiated_call_index); 458 break; 459 460 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG: 461 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF: 462 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 463 if (hfp_gsm_call_status() != HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS) break; 464 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 465 set_enhanced_call_status_response_hold(initiated_call_index); 466 break; 467 468 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG: 469 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF: 470 if (!hfp_gsm_response_held_active()) break; 471 set_enhanced_call_status_active(get_response_held_call_index()); 472 break; 473 474 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG: 475 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF: 476 if (!hfp_gsm_response_held_active()) break; 477 delete_call(get_response_held_call_index()); 478 break; 479 480 481 case HFP_AG_TERMINATE_CALL_BY_HF: 482 switch (hfp_gsm_call_status()){ 483 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 484 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 485 break; 486 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 487 delete_call(current_call_index); 488 break; 489 } 490 break; 491 492 case HFP_AG_TERMINATE_CALL_BY_AG: 493 switch (hfp_gsm_call_status()){ 494 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 495 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 496 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 497 break; 498 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 499 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 500 delete_call(current_call_index); 501 break; 502 default: 503 break; 504 } 505 break; 506 507 case HFP_AG_CALL_DROPPED: 508 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 509 if (hfp_gsm_call_status() != HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT) break; 510 511 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 512 delete_call(i); 513 } 514 break; 515 516 case HFP_AG_CALL_HOLD_USER_BUSY: 517 // Held or waiting call gets active, 518 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 519 free_call_slot(initiated_call_index); 520 set_enhanced_call_status_active(held_call_index); 521 break; 522 523 case HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL: 524 if ((index != 0) && (index <= HFP_GSM_MAX_NR_CALLS) ){ 525 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 526 if (gsm_calls[i].index == index){ 527 delete_call(i); 528 continue; 529 } 530 } 531 } else { 532 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 533 if (is_enhanced_call_status_active(i)){ 534 delete_call(i); 535 } 536 } 537 } 538 539 if (callsetup_status != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS){ 540 set_enhanced_call_status_active(initiated_call_index); 541 } else { 542 set_enhanced_call_status_active(held_call_index); 543 } 544 545 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 546 break; 547 548 case HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL: 549 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 550 if (is_enhanced_call_status_active(i) && (gsm_calls[i].index != index)){ 551 set_enhanced_call_status_held(i); 552 } 553 } 554 555 if (callsetup_status != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS){ 556 set_enhanced_call_status_active(initiated_call_index); 557 } else { 558 set_enhanced_call_status_active(held_call_index); 559 } 560 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 561 break; 562 563 case HFP_AG_CALL_HOLD_ADD_HELD_CALL: 564 if (hfp_gsm_callheld_status() != HFP_CALLHELD_STATUS_NO_CALLS_HELD){ 565 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 566 if (gsm_calls[i].used_slot){ 567 set_enhanced_call_status_active(i); 568 gsm_calls[i].mpty = HFP_ENHANCED_CALL_MPTY_CONFERENCE_CALL; 569 } 570 } 571 } 572 break; 573 574 case HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS: 575 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 576 delete_call(i); 577 } 578 break; 579 580 case HFP_AG_SET_CLIP: 581 if (initiated_call_index != -1){ 582 hfp_gsm_set_clip(initiated_call_index, type, number); 583 break; 584 } 585 586 clip_type = type; 587 strncpy(clip_number, number, sizeof(clip_number)); 588 clip_number[sizeof(clip_number)-1] = '\0'; 589 590 break; 591 default: 592 break; 593 } 594 } 595