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 <string.h> 50 51 #include "btstack_memory.h" 52 #include "classic/core.h" 53 #include "classic/hfp.h" 54 #include "classic/hfp_gsm_model.h" 55 #include "classic/sdp_server.h" 56 #include "classic/sdp_client_rfcomm.h" 57 #include "btstack_debug.h" 58 #include "hci.h" 59 #include "hci_cmd.h" 60 #include "hci_dump.h" 61 #include "l2cap.h" 62 #include "btstack_run_loop.h" 63 64 #define HFP_GSM_MAX_NR_CALLS 3 65 #define HFP_GSM_MAX_CALL_NUMBER_SIZE 25 66 67 static hfp_gsm_call_t gsm_calls[HFP_GSM_MAX_NR_CALLS]; 68 static hfp_callsetup_status_t callsetup_status; 69 70 static uint8_t clip_type; 71 static char clip_number[HFP_GSM_MAX_CALL_NUMBER_SIZE]; 72 static char last_dialed_number[HFP_GSM_MAX_CALL_NUMBER_SIZE]; 73 74 static inline int get_number_active_calls(void); 75 76 static void set_callsetup_status(hfp_callsetup_status_t status){ 77 callsetup_status = status; 78 if (callsetup_status != HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE) return; 79 80 int i ; 81 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 82 if (gsm_calls[i].direction == HFP_ENHANCED_CALL_DIR_OUTGOING){ 83 gsm_calls[i].enhanced_status = HFP_ENHANCED_CALL_STATUS_OUTGOING_ALERTING; 84 } 85 } 86 } 87 88 static inline void set_enhanced_call_status_active(int index_in_table){ 89 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return; 90 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_ACTIVE; 91 gsm_calls[index_in_table].used_slot = 1; 92 } 93 94 static inline void set_enhanced_call_status_held(int index_in_table){ 95 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return; 96 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_HELD; 97 gsm_calls[index_in_table].used_slot = 1; 98 } 99 100 static inline void set_enhanced_call_status_response_hold(int index_in_table){ 101 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return; 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 ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return; 108 if (gsm_calls[index_in_table].direction == HFP_ENHANCED_CALL_DIR_OUTGOING){ 109 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_OUTGOING_DIALING; 110 } else { 111 if (get_number_active_calls() > 0){ 112 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_INCOMING_WAITING; 113 } else { 114 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_INCOMING; 115 } 116 } 117 gsm_calls[index_in_table].used_slot = 1; 118 } 119 120 static int get_enhanced_call_status(int index_in_table){ 121 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return -1; 122 if (!gsm_calls[index_in_table].used_slot) return -1; 123 return gsm_calls[index_in_table].enhanced_status; 124 } 125 126 static inline int is_enhanced_call_status_active(int index_in_table){ 127 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return 0; 128 return get_enhanced_call_status(index_in_table) == HFP_ENHANCED_CALL_STATUS_ACTIVE; 129 } 130 131 static inline int is_enhanced_call_status_initiated(int index_in_table){ 132 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return 0; 133 switch (get_enhanced_call_status(index_in_table)){ 134 case HFP_ENHANCED_CALL_STATUS_OUTGOING_DIALING: 135 case HFP_ENHANCED_CALL_STATUS_OUTGOING_ALERTING: 136 case HFP_ENHANCED_CALL_STATUS_INCOMING: 137 case HFP_ENHANCED_CALL_STATUS_INCOMING_WAITING: 138 return 1; 139 default: 140 return 0; 141 } 142 } 143 144 static void free_call_slot(int index_in_table){ 145 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return; 146 gsm_calls[index_in_table].used_slot = 0; 147 } 148 149 void hfp_gsm_init(void){ 150 callsetup_status = HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS; 151 clip_type = 0; 152 memset(clip_number, 0, sizeof(clip_number)); 153 memset(last_dialed_number, 0, sizeof(last_dialed_number)); 154 memset(gsm_calls, 0, sizeof(gsm_calls)); 155 int i; 156 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 157 free_call_slot(i); 158 } 159 } 160 161 void hfp_gsm_deinit(void){ 162 } 163 164 static int get_number_calls_with_enhanced_status(hfp_enhanced_call_status_t enhanced_status){ 165 int i, count = 0; 166 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 167 if (get_enhanced_call_status(i) == (int) enhanced_status) count++; 168 } 169 return count; 170 } 171 172 static int get_call_index_with_enhanced_status(hfp_enhanced_call_status_t enhanced_status){ 173 int i ; 174 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 175 if (get_enhanced_call_status(i) == (int) enhanced_status) return i; 176 } 177 return -1; 178 } 179 180 static inline int get_initiated_call_index(void){ 181 int i ; 182 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 183 if (is_enhanced_call_status_initiated(i)) return i; 184 } 185 return -1; 186 } 187 188 static inline int get_next_free_slot(void){ 189 int i ; 190 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 191 if (!gsm_calls[i].used_slot) return i; 192 } 193 return -1; 194 } 195 196 static inline int get_active_call_index(void){ 197 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_ACTIVE); 198 } 199 200 static inline int get_held_call_index(void){ 201 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_HELD); 202 } 203 204 static inline int get_response_held_call_index(void){ 205 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD); 206 } 207 208 static inline int get_number_none_calls(void){ 209 int i, count = 0; 210 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 211 if (!gsm_calls[i].used_slot) count++; 212 } 213 return count; 214 } 215 216 static inline int get_number_active_calls(void){ 217 return get_number_calls_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_ACTIVE); 218 } 219 220 static inline int get_number_held_calls(void){ 221 return get_number_calls_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_HELD); 222 } 223 224 static inline int get_number_response_held_calls(void){ 225 return get_number_calls_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD); 226 } 227 228 static int next_call_index(void){ 229 return HFP_GSM_MAX_NR_CALLS + 1 - get_number_none_calls(); 230 } 231 232 static void hfp_gsm_set_clip(int index_in_table, uint8_t type, const char * number){ 233 uint16_t number_str_len = (uint16_t) strlen(number); 234 if (number_str_len == 0) return; 235 236 gsm_calls[index_in_table].clip_type = type; 237 int clip_number_size = btstack_min(number_str_len, HFP_GSM_MAX_CALL_NUMBER_SIZE - 1); 238 strncpy(gsm_calls[index_in_table].clip_number, number, clip_number_size); 239 gsm_calls[index_in_table].clip_number[clip_number_size] = '\0'; 240 strncpy(last_dialed_number, number, clip_number_size); 241 last_dialed_number[clip_number_size] = '\0'; 242 243 clip_type = 0; 244 memset(clip_number, 0, sizeof(clip_number)); 245 } 246 247 static void delete_call(int delete_index_in_table){ 248 int i ; 249 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 250 if (gsm_calls[i].index > gsm_calls[delete_index_in_table].index){ 251 gsm_calls[i].index--; 252 } 253 } 254 free_call_slot(delete_index_in_table); 255 256 gsm_calls[delete_index_in_table].clip_type = 0; 257 gsm_calls[delete_index_in_table].index = 0; 258 gsm_calls[delete_index_in_table].clip_number[0] = '\0'; 259 gsm_calls[delete_index_in_table].mpty = HFP_ENHANCED_CALL_MPTY_NOT_A_CONFERENCE_CALL; 260 } 261 262 263 static void create_call(hfp_enhanced_call_dir_t direction){ 264 int next_free_slot = get_next_free_slot(); 265 gsm_calls[next_free_slot].direction = direction; 266 gsm_calls[next_free_slot].index = next_call_index(); 267 set_enhanced_call_status_initiated(next_free_slot); 268 gsm_calls[next_free_slot].clip_type = 0; 269 gsm_calls[next_free_slot].clip_number[0] = '\0'; 270 gsm_calls[next_free_slot].mpty = HFP_ENHANCED_CALL_MPTY_NOT_A_CONFERENCE_CALL; 271 272 hfp_gsm_set_clip(next_free_slot, clip_type, clip_number); 273 } 274 275 276 int hfp_gsm_get_number_of_calls(void){ 277 return HFP_GSM_MAX_NR_CALLS - get_number_none_calls(); 278 } 279 280 void hfp_gsm_clear_last_dialed_number(void){ 281 memset(last_dialed_number, 0, sizeof(last_dialed_number)); 282 } 283 284 char * hfp_gsm_last_dialed_number(void){ 285 return &last_dialed_number[0]; 286 } 287 288 hfp_gsm_call_t * hfp_gsm_call(int call_index){ 289 int i; 290 291 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 292 hfp_gsm_call_t * call = &gsm_calls[i]; 293 if (call->index != call_index) continue; 294 return call; 295 } 296 return NULL; 297 } 298 299 uint8_t hfp_gsm_clip_type(void){ 300 if (clip_type != 0) return clip_type; 301 302 int initiated_call_index = get_initiated_call_index(); 303 if (initiated_call_index != -1){ 304 if (gsm_calls[initiated_call_index].clip_type != 0) { 305 return gsm_calls[initiated_call_index].clip_type; 306 } 307 } 308 309 int active_call_index = get_active_call_index(); 310 if (active_call_index != -1){ 311 if (gsm_calls[active_call_index].clip_type != 0) { 312 return gsm_calls[active_call_index].clip_type; 313 } 314 } 315 return 0; 316 } 317 318 char * hfp_gsm_clip_number(void){ 319 if (strlen(clip_number) != 0) return clip_number; 320 321 int initiated_call_index = get_initiated_call_index(); 322 if (initiated_call_index != -1){ 323 if (gsm_calls[initiated_call_index].clip_type != 0) { 324 return gsm_calls[initiated_call_index].clip_number; 325 } 326 } 327 328 int active_call_index = get_active_call_index(); 329 if (active_call_index != -1){ 330 if (gsm_calls[active_call_index].clip_type != 0) { 331 return gsm_calls[active_call_index].clip_number; 332 } 333 } 334 clip_number[0] = 0; 335 return clip_number; 336 } 337 338 hfp_call_status_t hfp_gsm_call_status(void){ 339 if (get_number_active_calls() + get_number_held_calls() + get_number_response_held_calls()){ 340 return HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT; 341 } 342 return HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS; 343 } 344 345 hfp_callheld_status_t hfp_gsm_callheld_status(void){ 346 // @note: order is important 347 if (get_number_held_calls() == 0){ 348 return HFP_CALLHELD_STATUS_NO_CALLS_HELD; 349 } 350 if (get_number_active_calls() == 0) { 351 return HFP_CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS; 352 } 353 return HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED; 354 } 355 356 hfp_callsetup_status_t hfp_gsm_callsetup_status(void){ 357 return callsetup_status; 358 } 359 360 static int hfp_gsm_response_held_active(void){ 361 return get_response_held_call_index() != -1 ; 362 } 363 364 int hfp_gsm_call_possible(void){ 365 return get_number_none_calls() > 0; 366 } 367 368 void hfp_gsm_handler(hfp_ag_call_event_t event, uint8_t index, uint8_t type, const char * number){ 369 int next_free_slot = get_next_free_slot(); 370 int current_call_index = get_active_call_index(); 371 int initiated_call_index = get_initiated_call_index(); 372 int held_call_index = get_held_call_index(); 373 int i; 374 375 switch (event){ 376 case HFP_AG_OUTGOING_CALL_INITIATED: 377 case HFP_AG_OUTGOING_REDIAL_INITIATED: 378 if (next_free_slot == -1){ 379 log_error("gsm: max call nr exceeded"); 380 return; 381 } 382 create_call(HFP_ENHANCED_CALL_DIR_OUTGOING); 383 break; 384 385 case HFP_AG_OUTGOING_CALL_REJECTED: 386 if (current_call_index != -1){ 387 delete_call(current_call_index); 388 } 389 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 390 break; 391 392 case HFP_AG_OUTGOING_CALL_ACCEPTED: 393 if (current_call_index != -1){ 394 set_enhanced_call_status_held(current_call_index); 395 } 396 set_callsetup_status(HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE); 397 break; 398 399 case HFP_AG_OUTGOING_CALL_RINGING: 400 if (current_call_index == -1){ 401 log_error("gsm: no active call"); 402 return; 403 } 404 set_callsetup_status(HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE); 405 break; 406 case HFP_AG_OUTGOING_CALL_ESTABLISHED: 407 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 408 set_enhanced_call_status_active(initiated_call_index); 409 break; 410 411 case HFP_AG_INCOMING_CALL: 412 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS) break; 413 set_callsetup_status(HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS); 414 create_call(HFP_ENHANCED_CALL_DIR_INCOMING); 415 break; 416 417 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG: 418 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 419 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 420 421 if (hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT){ 422 set_enhanced_call_status_held(current_call_index); 423 } 424 set_enhanced_call_status_active(initiated_call_index); 425 break; 426 427 case HFP_AG_HELD_CALL_JOINED_BY_AG: 428 if (hfp_gsm_call_status() != HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT) break; 429 430 // TODO: is following condition correct? Can we join incoming call before it is answered? 431 if (callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS){ 432 set_enhanced_call_status_active(initiated_call_index); 433 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 434 } else if (hfp_gsm_callheld_status() == HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED) { 435 set_enhanced_call_status_active(held_call_index); 436 } 437 438 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 439 if (is_enhanced_call_status_active(i)){ 440 gsm_calls[i].mpty = HFP_ENHANCED_CALL_MPTY_CONFERENCE_CALL; 441 } 442 } 443 break; 444 445 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF: 446 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 447 if (hfp_gsm_call_status() != HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS) break; 448 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 449 set_enhanced_call_status_active(initiated_call_index); 450 break; 451 452 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG: 453 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_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_response_hold(initiated_call_index); 458 break; 459 460 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG: 461 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF: 462 if (!hfp_gsm_response_held_active()) break; 463 set_enhanced_call_status_active(get_response_held_call_index()); 464 break; 465 466 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG: 467 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF: 468 if (!hfp_gsm_response_held_active()) break; 469 delete_call(get_response_held_call_index()); 470 break; 471 472 473 case HFP_AG_TERMINATE_CALL_BY_HF: 474 switch (hfp_gsm_call_status()){ 475 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 476 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 477 break; 478 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 479 delete_call(current_call_index); 480 break; 481 default: 482 break; 483 } 484 break; 485 486 case HFP_AG_TERMINATE_CALL_BY_AG: 487 switch (hfp_gsm_call_status()){ 488 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 489 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 490 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 491 break; 492 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 493 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 494 delete_call(current_call_index); 495 break; 496 default: 497 break; 498 } 499 break; 500 501 case HFP_AG_CALL_DROPPED: 502 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 503 if (hfp_gsm_call_status() != HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT) break; 504 505 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 506 delete_call(i); 507 } 508 break; 509 510 case HFP_AG_CALL_HOLD_USER_BUSY: 511 // Held or waiting call gets active, 512 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 513 free_call_slot(initiated_call_index); 514 set_enhanced_call_status_active(held_call_index); 515 break; 516 517 case HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL: 518 if ((index != 0) && (index <= HFP_GSM_MAX_NR_CALLS) ){ 519 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 520 if (gsm_calls[i].index == index){ 521 delete_call(i); 522 continue; 523 } 524 } 525 } else { 526 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 527 if (is_enhanced_call_status_active(i)){ 528 delete_call(i); 529 } 530 } 531 } 532 533 if (callsetup_status != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS){ 534 set_enhanced_call_status_active(initiated_call_index); 535 } else { 536 set_enhanced_call_status_active(held_call_index); 537 } 538 539 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 540 break; 541 542 case HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL: 543 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 544 if (is_enhanced_call_status_active(i) && (gsm_calls[i].index != index)){ 545 set_enhanced_call_status_held(i); 546 } 547 } 548 549 if (callsetup_status != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS){ 550 set_enhanced_call_status_active(initiated_call_index); 551 } else { 552 set_enhanced_call_status_active(held_call_index); 553 } 554 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 555 break; 556 557 case HFP_AG_CALL_HOLD_ADD_HELD_CALL: 558 if (hfp_gsm_callheld_status() != HFP_CALLHELD_STATUS_NO_CALLS_HELD){ 559 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 560 if (gsm_calls[i].used_slot){ 561 set_enhanced_call_status_active(i); 562 gsm_calls[i].mpty = HFP_ENHANCED_CALL_MPTY_CONFERENCE_CALL; 563 } 564 } 565 } 566 break; 567 568 case HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS: 569 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 570 delete_call(i); 571 } 572 break; 573 574 case HFP_AG_SET_CLIP: 575 if (initiated_call_index != -1){ 576 hfp_gsm_set_clip(initiated_call_index, type, number); 577 break; 578 } 579 580 clip_type = type; 581 strncpy(clip_number, number, sizeof(clip_number)); 582 clip_number[sizeof(clip_number)-1] = '\0'; 583 584 break; 585 default: 586 break; 587 } 588 } 589