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 = HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS; 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 set_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 static int get_number_calls_with_enhanced_status(hfp_enhanced_call_status_t enhanced_status){ 162 int i, count = 0; 163 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 164 if (get_enhanced_call_status(i) == (int) enhanced_status) count++; 165 } 166 return count; 167 } 168 169 static int get_call_index_with_enhanced_status(hfp_enhanced_call_status_t enhanced_status){ 170 int i ; 171 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 172 if (get_enhanced_call_status(i) == (int) enhanced_status) return i; 173 } 174 return -1; 175 } 176 177 static inline int get_initiated_call_index(void){ 178 int i ; 179 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 180 if (is_enhanced_call_status_initiated(i)) return i; 181 } 182 return -1; 183 } 184 185 static inline int get_next_free_slot(void){ 186 int i ; 187 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 188 if (!gsm_calls[i].used_slot) return i; 189 } 190 return -1; 191 } 192 193 static inline int get_active_call_index(void){ 194 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_ACTIVE); 195 } 196 197 static inline int get_held_call_index(void){ 198 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_HELD); 199 } 200 201 static inline int get_response_held_call_index(void){ 202 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD); 203 } 204 205 static inline int get_number_none_calls(void){ 206 int i, count = 0; 207 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 208 if (!gsm_calls[i].used_slot) count++; 209 } 210 return count; 211 } 212 213 static inline int get_number_active_calls(void){ 214 return get_number_calls_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_ACTIVE); 215 } 216 217 static inline int get_number_held_calls(void){ 218 return get_number_calls_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_HELD); 219 } 220 221 static inline int get_number_response_held_calls(void){ 222 return get_number_calls_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD); 223 } 224 225 static int next_call_index(void){ 226 return HFP_GSM_MAX_NR_CALLS + 1 - get_number_none_calls(); 227 } 228 229 static void hfp_gsm_set_clip(int index_in_table, uint8_t type, const char * number){ 230 uint16_t number_str_len = (uint16_t) strlen(number); 231 if (number_str_len == 0) return; 232 233 gsm_calls[index_in_table].clip_type = type; 234 int clip_number_size = btstack_min(number_str_len, HFP_GSM_MAX_CALL_NUMBER_SIZE - 1); 235 strncpy(gsm_calls[index_in_table].clip_number, number, clip_number_size); 236 gsm_calls[index_in_table].clip_number[clip_number_size] = '\0'; 237 strncpy(last_dialed_number, number, clip_number_size); 238 last_dialed_number[clip_number_size] = '\0'; 239 240 clip_type = 0; 241 memset(clip_number, 0, sizeof(clip_number)); 242 } 243 244 static void delete_call(int delete_index_in_table){ 245 int i ; 246 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 247 if (gsm_calls[i].index > gsm_calls[delete_index_in_table].index){ 248 gsm_calls[i].index--; 249 } 250 } 251 free_call_slot(delete_index_in_table); 252 253 gsm_calls[delete_index_in_table].clip_type = 0; 254 gsm_calls[delete_index_in_table].index = 0; 255 gsm_calls[delete_index_in_table].clip_number[0] = '\0'; 256 gsm_calls[delete_index_in_table].mpty = HFP_ENHANCED_CALL_MPTY_NOT_A_CONFERENCE_CALL; 257 } 258 259 260 static void create_call(hfp_enhanced_call_dir_t direction){ 261 int next_free_slot = get_next_free_slot(); 262 gsm_calls[next_free_slot].direction = direction; 263 gsm_calls[next_free_slot].index = next_call_index(); 264 set_enhanced_call_status_initiated(next_free_slot); 265 gsm_calls[next_free_slot].clip_type = 0; 266 gsm_calls[next_free_slot].clip_number[0] = '\0'; 267 gsm_calls[next_free_slot].mpty = HFP_ENHANCED_CALL_MPTY_NOT_A_CONFERENCE_CALL; 268 269 hfp_gsm_set_clip(next_free_slot, clip_type, clip_number); 270 } 271 272 273 int hfp_gsm_get_number_of_calls(void){ 274 return HFP_GSM_MAX_NR_CALLS - get_number_none_calls(); 275 } 276 277 void hfp_gsm_clear_last_dialed_number(void){ 278 memset(last_dialed_number, 0, sizeof(last_dialed_number)); 279 } 280 281 char * hfp_gsm_last_dialed_number(void){ 282 return &last_dialed_number[0]; 283 } 284 285 hfp_gsm_call_t * hfp_gsm_call(int call_index){ 286 int i; 287 288 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 289 hfp_gsm_call_t * call = &gsm_calls[i]; 290 if (call->index != call_index) continue; 291 return call; 292 } 293 return NULL; 294 } 295 296 uint8_t hfp_gsm_clip_type(void){ 297 if (clip_type != 0) return clip_type; 298 299 int initiated_call_index = get_initiated_call_index(); 300 if (initiated_call_index != -1){ 301 if (gsm_calls[initiated_call_index].clip_type != 0) { 302 return gsm_calls[initiated_call_index].clip_type; 303 } 304 } 305 306 int active_call_index = get_active_call_index(); 307 if (active_call_index != -1){ 308 if (gsm_calls[active_call_index].clip_type != 0) { 309 return gsm_calls[active_call_index].clip_type; 310 } 311 } 312 return 0; 313 } 314 315 char * hfp_gsm_clip_number(void){ 316 if (strlen(clip_number) != 0) return clip_number; 317 318 int initiated_call_index = get_initiated_call_index(); 319 if (initiated_call_index != -1){ 320 if (gsm_calls[initiated_call_index].clip_type != 0) { 321 return gsm_calls[initiated_call_index].clip_number; 322 } 323 } 324 325 int active_call_index = get_active_call_index(); 326 if (active_call_index != -1){ 327 if (gsm_calls[active_call_index].clip_type != 0) { 328 return gsm_calls[active_call_index].clip_number; 329 } 330 } 331 clip_number[0] = 0; 332 return clip_number; 333 } 334 335 hfp_call_status_t hfp_gsm_call_status(void){ 336 if (get_number_active_calls() + get_number_held_calls() + get_number_response_held_calls()){ 337 return HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT; 338 } 339 return HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS; 340 } 341 342 hfp_callheld_status_t hfp_gsm_callheld_status(void){ 343 // @note: order is important 344 if (get_number_held_calls() == 0){ 345 return HFP_CALLHELD_STATUS_NO_CALLS_HELD; 346 } 347 if (get_number_active_calls() == 0) { 348 return HFP_CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS; 349 } 350 return HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED; 351 } 352 353 hfp_callsetup_status_t hfp_gsm_callsetup_status(void){ 354 return callsetup_status; 355 } 356 357 static int hfp_gsm_response_held_active(void){ 358 return get_response_held_call_index() != -1 ; 359 } 360 361 int hfp_gsm_call_possible(void){ 362 return get_number_none_calls() > 0; 363 } 364 365 void hfp_gsm_handler(hfp_ag_call_event_t event, uint8_t index, uint8_t type, const char * number){ 366 int next_free_slot = get_next_free_slot(); 367 int current_call_index = get_active_call_index(); 368 int initiated_call_index = get_initiated_call_index(); 369 int held_call_index = get_held_call_index(); 370 int i; 371 372 switch (event){ 373 case HFP_AG_OUTGOING_CALL_INITIATED: 374 case HFP_AG_OUTGOING_REDIAL_INITIATED: 375 if (next_free_slot == -1){ 376 log_error("gsm: max call nr exceeded"); 377 return; 378 } 379 create_call(HFP_ENHANCED_CALL_DIR_OUTGOING); 380 break; 381 382 case HFP_AG_OUTGOING_CALL_REJECTED: 383 if (current_call_index != -1){ 384 delete_call(current_call_index); 385 } 386 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 387 break; 388 389 case HFP_AG_OUTGOING_CALL_ACCEPTED: 390 if (current_call_index != -1){ 391 set_enhanced_call_status_held(current_call_index); 392 } 393 set_callsetup_status(HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE); 394 break; 395 396 case HFP_AG_OUTGOING_CALL_RINGING: 397 if (current_call_index == -1){ 398 log_error("gsm: no active call"); 399 return; 400 } 401 set_callsetup_status(HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE); 402 break; 403 case HFP_AG_OUTGOING_CALL_ESTABLISHED: 404 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 405 set_enhanced_call_status_active(initiated_call_index); 406 break; 407 408 case HFP_AG_INCOMING_CALL: 409 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS) break; 410 set_callsetup_status(HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS); 411 create_call(HFP_ENHANCED_CALL_DIR_INCOMING); 412 break; 413 414 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG: 415 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 416 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 417 418 if (hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT){ 419 set_enhanced_call_status_held(current_call_index); 420 } 421 set_enhanced_call_status_active(initiated_call_index); 422 break; 423 424 case HFP_AG_HELD_CALL_JOINED_BY_AG: 425 if (hfp_gsm_call_status() != HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT) break; 426 427 // TODO: is following condition correct? Can we join incoming call before it is answered? 428 if (callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS){ 429 set_enhanced_call_status_active(initiated_call_index); 430 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 431 } else if (hfp_gsm_callheld_status() == HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED) { 432 set_enhanced_call_status_active(held_call_index); 433 } 434 435 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 436 if (is_enhanced_call_status_active(i)){ 437 gsm_calls[i].mpty = HFP_ENHANCED_CALL_MPTY_CONFERENCE_CALL; 438 } 439 } 440 break; 441 442 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF: 443 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 444 if (hfp_gsm_call_status() != HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS) break; 445 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 446 set_enhanced_call_status_active(initiated_call_index); 447 break; 448 449 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG: 450 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF: 451 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 452 if (hfp_gsm_call_status() != HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS) break; 453 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 454 set_enhanced_call_status_response_hold(initiated_call_index); 455 break; 456 457 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG: 458 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF: 459 if (!hfp_gsm_response_held_active()) break; 460 set_enhanced_call_status_active(get_response_held_call_index()); 461 break; 462 463 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG: 464 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF: 465 if (!hfp_gsm_response_held_active()) break; 466 delete_call(get_response_held_call_index()); 467 break; 468 469 470 case HFP_AG_TERMINATE_CALL_BY_HF: 471 switch (hfp_gsm_call_status()){ 472 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 473 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 474 break; 475 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 476 delete_call(current_call_index); 477 break; 478 default: 479 break; 480 } 481 break; 482 483 case HFP_AG_TERMINATE_CALL_BY_AG: 484 switch (hfp_gsm_call_status()){ 485 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 486 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 487 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 488 break; 489 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 490 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 491 delete_call(current_call_index); 492 break; 493 default: 494 break; 495 } 496 break; 497 498 case HFP_AG_CALL_DROPPED: 499 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 500 if (hfp_gsm_call_status() != HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT) break; 501 502 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 503 delete_call(i); 504 } 505 break; 506 507 case HFP_AG_CALL_HOLD_USER_BUSY: 508 // Held or waiting call gets active, 509 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 510 free_call_slot(initiated_call_index); 511 set_enhanced_call_status_active(held_call_index); 512 break; 513 514 case HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL: 515 if ((index != 0) && (index <= HFP_GSM_MAX_NR_CALLS) ){ 516 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 517 if (gsm_calls[i].index == index){ 518 delete_call(i); 519 continue; 520 } 521 } 522 } else { 523 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 524 if (is_enhanced_call_status_active(i)){ 525 delete_call(i); 526 } 527 } 528 } 529 530 if (callsetup_status != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS){ 531 set_enhanced_call_status_active(initiated_call_index); 532 } else { 533 set_enhanced_call_status_active(held_call_index); 534 } 535 536 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 537 break; 538 539 case HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL: 540 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 541 if (is_enhanced_call_status_active(i) && (gsm_calls[i].index != index)){ 542 set_enhanced_call_status_held(i); 543 } 544 } 545 546 if (callsetup_status != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS){ 547 set_enhanced_call_status_active(initiated_call_index); 548 } else { 549 set_enhanced_call_status_active(held_call_index); 550 } 551 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 552 break; 553 554 case HFP_AG_CALL_HOLD_ADD_HELD_CALL: 555 if (hfp_gsm_callheld_status() != HFP_CALLHELD_STATUS_NO_CALLS_HELD){ 556 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 557 if (gsm_calls[i].used_slot){ 558 set_enhanced_call_status_active(i); 559 gsm_calls[i].mpty = HFP_ENHANCED_CALL_MPTY_CONFERENCE_CALL; 560 } 561 } 562 } 563 break; 564 565 case HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS: 566 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 567 delete_call(i); 568 } 569 break; 570 571 case HFP_AG_SET_CLIP: 572 if (initiated_call_index != -1){ 573 hfp_gsm_set_clip(initiated_call_index, type, number); 574 break; 575 } 576 577 clip_type = type; 578 strncpy(clip_number, number, sizeof(clip_number)); 579 clip_number[sizeof(clip_number)-1] = '\0'; 580 581 break; 582 default: 583 break; 584 } 585 } 586