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 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return; 93 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_ACTIVE; 94 gsm_calls[index_in_table].used_slot = 1; 95 } 96 97 static inline void set_enhanced_call_status_held(int index_in_table){ 98 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return; 99 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_HELD; 100 gsm_calls[index_in_table].used_slot = 1; 101 } 102 103 static inline void set_enhanced_call_status_response_hold(int index_in_table){ 104 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return; 105 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD; 106 gsm_calls[index_in_table].used_slot = 1; 107 } 108 109 static inline void set_enhanced_call_status_initiated(int index_in_table){ 110 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return; 111 if (gsm_calls[index_in_table].direction == HFP_ENHANCED_CALL_DIR_OUTGOING){ 112 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_OUTGOING_DIALING; 113 } else { 114 if (get_number_active_calls() > 0){ 115 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_INCOMING_WAITING; 116 } else { 117 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_INCOMING; 118 } 119 } 120 gsm_calls[index_in_table].used_slot = 1; 121 } 122 123 static int get_enhanced_call_status(int index_in_table){ 124 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return -1; 125 if (!gsm_calls[index_in_table].used_slot) return -1; 126 return gsm_calls[index_in_table].enhanced_status; 127 } 128 129 static inline int is_enhanced_call_status_active(int index_in_table){ 130 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return 0; 131 return get_enhanced_call_status(index_in_table) == HFP_ENHANCED_CALL_STATUS_ACTIVE; 132 } 133 134 static inline int is_enhanced_call_status_initiated(int index_in_table){ 135 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return 0; 136 switch (get_enhanced_call_status(index_in_table)){ 137 case HFP_ENHANCED_CALL_STATUS_OUTGOING_DIALING: 138 case HFP_ENHANCED_CALL_STATUS_OUTGOING_ALERTING: 139 case HFP_ENHANCED_CALL_STATUS_INCOMING: 140 case HFP_ENHANCED_CALL_STATUS_INCOMING_WAITING: 141 return 1; 142 default: 143 return 0; 144 } 145 } 146 147 static void free_call_slot(int index_in_table){ 148 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return; 149 gsm_calls[index_in_table].used_slot = 0; 150 } 151 152 void hfp_gsm_init(void){ 153 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 154 clip_type = 0; 155 memset(clip_number, 0, sizeof(clip_number)); 156 memset(last_dialed_number, 0, sizeof(last_dialed_number)); 157 memset(gsm_calls, 0, sizeof(gsm_calls)); 158 int i; 159 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 160 free_call_slot(i); 161 } 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_handle_event(hfp_ag_call_event_t event){ 369 hfp_gsm_handler(event, 0, 0, NULL); 370 } 371 372 void hfp_gsm_handle_event_with_clip(hfp_ag_call_event_t event, uint8_t type, const char * number){ 373 hfp_gsm_handler(event, 0, type, number); 374 } 375 376 void hfp_gsm_handle_event_with_call_index(hfp_ag_call_event_t event, uint8_t index){ 377 hfp_gsm_handler(event, index, 0, NULL); 378 } 379 380 void hfp_gsm_handle_event_with_call_number(hfp_ag_call_event_t event, const char * number){ 381 hfp_gsm_handler(event, 0, 0, number); 382 } 383 384 static void hfp_gsm_handler(hfp_ag_call_event_t event, uint8_t index, uint8_t type, const char * number){ 385 int next_free_slot = get_next_free_slot(); 386 int current_call_index = get_active_call_index(); 387 int initiated_call_index = get_initiated_call_index(); 388 int held_call_index = get_held_call_index(); 389 int i; 390 391 switch (event){ 392 case HFP_AG_OUTGOING_CALL_INITIATED: 393 case HFP_AG_OUTGOING_REDIAL_INITIATED: 394 if (next_free_slot == -1){ 395 log_error("gsm: max call nr exceeded"); 396 return; 397 } 398 create_call(HFP_ENHANCED_CALL_DIR_OUTGOING); 399 break; 400 401 case HFP_AG_OUTGOING_CALL_REJECTED: 402 if (current_call_index != -1){ 403 delete_call(current_call_index); 404 } 405 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 406 break; 407 408 case HFP_AG_OUTGOING_CALL_ACCEPTED: 409 if (current_call_index != -1){ 410 set_enhanced_call_status_held(current_call_index); 411 } 412 set_callsetup_status(HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE); 413 break; 414 415 case HFP_AG_OUTGOING_CALL_RINGING: 416 if (current_call_index == -1){ 417 log_error("gsm: no active call"); 418 return; 419 } 420 set_callsetup_status(HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE); 421 break; 422 case HFP_AG_OUTGOING_CALL_ESTABLISHED: 423 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 424 set_enhanced_call_status_active(initiated_call_index); 425 break; 426 427 case HFP_AG_INCOMING_CALL: 428 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS) break; 429 set_callsetup_status(HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS); 430 create_call(HFP_ENHANCED_CALL_DIR_INCOMING); 431 break; 432 433 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG: 434 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 435 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 436 437 if (hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT){ 438 set_enhanced_call_status_held(current_call_index); 439 } 440 set_enhanced_call_status_active(initiated_call_index); 441 break; 442 443 case HFP_AG_HELD_CALL_JOINED_BY_AG: 444 if (hfp_gsm_call_status() != HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT) break; 445 446 // TODO: is following condition correct? Can we join incoming call before it is answered? 447 if (callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS){ 448 set_enhanced_call_status_active(initiated_call_index); 449 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 450 } else if (hfp_gsm_callheld_status() == HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED) { 451 set_enhanced_call_status_active(held_call_index); 452 } 453 454 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 455 if (is_enhanced_call_status_active(i)){ 456 gsm_calls[i].mpty = HFP_ENHANCED_CALL_MPTY_CONFERENCE_CALL; 457 } 458 } 459 break; 460 461 case HFP_AG_INCOMING_CALL_ACCEPTED_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_active(initiated_call_index); 466 break; 467 468 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG: 469 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF: 470 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 471 if (hfp_gsm_call_status() != HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS) break; 472 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 473 set_enhanced_call_status_response_hold(initiated_call_index); 474 break; 475 476 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG: 477 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF: 478 if (!hfp_gsm_response_held_active()) break; 479 set_enhanced_call_status_active(get_response_held_call_index()); 480 break; 481 482 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG: 483 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF: 484 if (!hfp_gsm_response_held_active()) break; 485 delete_call(get_response_held_call_index()); 486 break; 487 488 489 case HFP_AG_TERMINATE_CALL_BY_HF: 490 switch (hfp_gsm_call_status()){ 491 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 492 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 493 break; 494 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 495 delete_call(current_call_index); 496 break; 497 } 498 break; 499 500 case HFP_AG_TERMINATE_CALL_BY_AG: 501 switch (hfp_gsm_call_status()){ 502 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 503 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 504 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 505 break; 506 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 507 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 508 delete_call(current_call_index); 509 break; 510 default: 511 break; 512 } 513 break; 514 515 case HFP_AG_CALL_DROPPED: 516 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 517 if (hfp_gsm_call_status() != HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT) break; 518 519 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 520 delete_call(i); 521 } 522 break; 523 524 case HFP_AG_CALL_HOLD_USER_BUSY: 525 // Held or waiting call gets active, 526 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 527 free_call_slot(initiated_call_index); 528 set_enhanced_call_status_active(held_call_index); 529 break; 530 531 case HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL: 532 if ((index != 0) && (index <= HFP_GSM_MAX_NR_CALLS) ){ 533 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 534 if (gsm_calls[i].index == index){ 535 delete_call(i); 536 continue; 537 } 538 } 539 } else { 540 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 541 if (is_enhanced_call_status_active(i)){ 542 delete_call(i); 543 } 544 } 545 } 546 547 if (callsetup_status != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS){ 548 set_enhanced_call_status_active(initiated_call_index); 549 } else { 550 set_enhanced_call_status_active(held_call_index); 551 } 552 553 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 554 break; 555 556 case HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL: 557 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 558 if (is_enhanced_call_status_active(i) && (gsm_calls[i].index != index)){ 559 set_enhanced_call_status_held(i); 560 } 561 } 562 563 if (callsetup_status != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS){ 564 set_enhanced_call_status_active(initiated_call_index); 565 } else { 566 set_enhanced_call_status_active(held_call_index); 567 } 568 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 569 break; 570 571 case HFP_AG_CALL_HOLD_ADD_HELD_CALL: 572 if (hfp_gsm_callheld_status() != HFP_CALLHELD_STATUS_NO_CALLS_HELD){ 573 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 574 if (gsm_calls[i].used_slot){ 575 set_enhanced_call_status_active(i); 576 gsm_calls[i].mpty = HFP_ENHANCED_CALL_MPTY_CONFERENCE_CALL; 577 } 578 } 579 } 580 break; 581 582 case HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS: 583 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 584 delete_call(i); 585 } 586 break; 587 588 case HFP_AG_SET_CLIP: 589 if (initiated_call_index != -1){ 590 hfp_gsm_set_clip(initiated_call_index, type, number); 591 break; 592 } 593 594 clip_type = type; 595 strncpy(clip_number, number, sizeof(clip_number)); 596 clip_number[sizeof(clip_number)-1] = '\0'; 597 598 break; 599 default: 600 break; 601 } 602 } 603