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 void hfp_gsm_set_last_dialed_number(const char* number){ 289 strncpy(last_dialed_number, number, sizeof(last_dialed_number)); 290 last_dialed_number[sizeof(last_dialed_number) - 1] = 0; 291 } 292 293 hfp_gsm_call_t * hfp_gsm_call(int call_index){ 294 int i; 295 296 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 297 hfp_gsm_call_t * call = &gsm_calls[i]; 298 if (call->index != call_index) continue; 299 return call; 300 } 301 return NULL; 302 } 303 304 uint8_t hfp_gsm_clip_type(void){ 305 if (clip_type != 0) return clip_type; 306 307 int initiated_call_index = get_initiated_call_index(); 308 if (initiated_call_index != -1){ 309 if (gsm_calls[initiated_call_index].clip_type != 0) { 310 return gsm_calls[initiated_call_index].clip_type; 311 } 312 } 313 314 int active_call_index = get_active_call_index(); 315 if (active_call_index != -1){ 316 if (gsm_calls[active_call_index].clip_type != 0) { 317 return gsm_calls[active_call_index].clip_type; 318 } 319 } 320 return 0; 321 } 322 323 char * hfp_gsm_clip_number(void){ 324 if (strlen(clip_number) != 0) return clip_number; 325 326 int initiated_call_index = get_initiated_call_index(); 327 if (initiated_call_index != -1){ 328 if (gsm_calls[initiated_call_index].clip_type != 0) { 329 return gsm_calls[initiated_call_index].clip_number; 330 } 331 } 332 333 int active_call_index = get_active_call_index(); 334 if (active_call_index != -1){ 335 if (gsm_calls[active_call_index].clip_type != 0) { 336 return gsm_calls[active_call_index].clip_number; 337 } 338 } 339 clip_number[0] = 0; 340 return clip_number; 341 } 342 343 hfp_call_status_t hfp_gsm_call_status(void){ 344 if (get_number_active_calls() + get_number_held_calls() + get_number_response_held_calls()){ 345 return HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT; 346 } 347 return HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS; 348 } 349 350 hfp_callheld_status_t hfp_gsm_callheld_status(void){ 351 // @note: order is important 352 if (get_number_held_calls() == 0){ 353 return HFP_CALLHELD_STATUS_NO_CALLS_HELD; 354 } 355 if (get_number_active_calls() == 0) { 356 return HFP_CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS; 357 } 358 return HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED; 359 } 360 361 hfp_callsetup_status_t hfp_gsm_callsetup_status(void){ 362 return callsetup_status; 363 } 364 365 static int hfp_gsm_response_held_active(void){ 366 return get_response_held_call_index() != -1 ; 367 } 368 369 int hfp_gsm_call_possible(void){ 370 return get_number_none_calls() > 0; 371 } 372 373 void hfp_gsm_handler(hfp_ag_call_event_t event, uint8_t index, uint8_t type, const char * number){ 374 int next_free_slot = get_next_free_slot(); 375 int current_call_index = get_active_call_index(); 376 int initiated_call_index = get_initiated_call_index(); 377 int held_call_index = get_held_call_index(); 378 int i; 379 380 switch (event){ 381 case HFP_AG_OUTGOING_CALL_INITIATED_BY_HF: 382 case HFP_AG_OUTGOING_CALL_INITIATED_BY_AG: 383 case HFP_AG_OUTGOING_REDIAL_INITIATED: 384 if (next_free_slot == -1){ 385 log_error("gsm: max call nr exceeded"); 386 return; 387 } 388 create_call(HFP_ENHANCED_CALL_DIR_OUTGOING); 389 break; 390 391 case HFP_AG_OUTGOING_CALL_REJECTED: 392 if (current_call_index != -1){ 393 delete_call(current_call_index); 394 } 395 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 396 break; 397 398 case HFP_AG_OUTGOING_CALL_ACCEPTED: 399 if (current_call_index != -1){ 400 set_enhanced_call_status_held(current_call_index); 401 } 402 set_callsetup_status(HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE); 403 break; 404 405 case HFP_AG_OUTGOING_CALL_RINGING: 406 if (current_call_index == -1){ 407 log_error("gsm: no active call"); 408 return; 409 } 410 set_callsetup_status(HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE); 411 break; 412 case HFP_AG_OUTGOING_CALL_ESTABLISHED: 413 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 414 set_enhanced_call_status_active(initiated_call_index); 415 break; 416 417 case HFP_AG_INCOMING_CALL: 418 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS) break; 419 set_callsetup_status(HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS); 420 create_call(HFP_ENHANCED_CALL_DIR_INCOMING); 421 break; 422 423 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG: 424 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 425 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 426 427 if (hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT){ 428 set_enhanced_call_status_held(current_call_index); 429 } 430 set_enhanced_call_status_active(initiated_call_index); 431 break; 432 433 case HFP_AG_HELD_CALL_JOINED_BY_AG: 434 if (hfp_gsm_call_status() != HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT) break; 435 436 // TODO: is following condition correct? Can we join incoming call before it is answered? 437 if (callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS){ 438 set_enhanced_call_status_active(initiated_call_index); 439 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 440 } else if (hfp_gsm_callheld_status() == HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED) { 441 set_enhanced_call_status_active(held_call_index); 442 } 443 444 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 445 if (is_enhanced_call_status_active(i)){ 446 gsm_calls[i].mpty = HFP_ENHANCED_CALL_MPTY_CONFERENCE_CALL; 447 } 448 } 449 break; 450 451 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF: 452 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 453 if (hfp_gsm_call_status() != HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS) break; 454 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 455 set_enhanced_call_status_active(initiated_call_index); 456 break; 457 458 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG: 459 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF: 460 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 461 if (hfp_gsm_call_status() != HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS) break; 462 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 463 set_enhanced_call_status_response_hold(initiated_call_index); 464 break; 465 466 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG: 467 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF: 468 if (!hfp_gsm_response_held_active()) break; 469 set_enhanced_call_status_active(get_response_held_call_index()); 470 break; 471 472 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG: 473 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF: 474 if (!hfp_gsm_response_held_active()) break; 475 delete_call(get_response_held_call_index()); 476 break; 477 478 479 case HFP_AG_TERMINATE_CALL_BY_HF: 480 switch (hfp_gsm_call_status()){ 481 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 482 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 483 break; 484 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 485 delete_call(current_call_index); 486 break; 487 default: 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