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 void hfp_gsm_handler(hfp_ag_call_event_t event, uint8_t index, uint8_t type, const char * number); 75 static inline int get_number_active_calls(void); 76 77 static void set_callsetup_status(hfp_callsetup_status_t status){ 78 callsetup_status = status; 79 if (callsetup_status != HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE) return; 80 81 int i ; 82 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 83 if (gsm_calls[i].direction == HFP_ENHANCED_CALL_DIR_OUTGOING){ 84 gsm_calls[i].enhanced_status = HFP_ENHANCED_CALL_STATUS_OUTGOING_ALERTING; 85 } 86 } 87 } 88 89 static inline void set_enhanced_call_status_active(int index_in_table){ 90 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return; 91 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_ACTIVE; 92 gsm_calls[index_in_table].used_slot = 1; 93 } 94 95 static inline void set_enhanced_call_status_held(int index_in_table){ 96 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return; 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 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return; 103 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD; 104 gsm_calls[index_in_table].used_slot = 1; 105 } 106 107 static inline void set_enhanced_call_status_initiated(int index_in_table){ 108 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return; 109 if (gsm_calls[index_in_table].direction == HFP_ENHANCED_CALL_DIR_OUTGOING){ 110 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_OUTGOING_DIALING; 111 } else { 112 if (get_number_active_calls() > 0){ 113 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_INCOMING_WAITING; 114 } else { 115 gsm_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_INCOMING; 116 } 117 } 118 gsm_calls[index_in_table].used_slot = 1; 119 } 120 121 static int get_enhanced_call_status(int index_in_table){ 122 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return -1; 123 if (!gsm_calls[index_in_table].used_slot) return -1; 124 return gsm_calls[index_in_table].enhanced_status; 125 } 126 127 static inline int is_enhanced_call_status_active(int index_in_table){ 128 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return 0; 129 return get_enhanced_call_status(index_in_table) == HFP_ENHANCED_CALL_STATUS_ACTIVE; 130 } 131 132 static inline int is_enhanced_call_status_initiated(int index_in_table){ 133 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return 0; 134 switch (get_enhanced_call_status(index_in_table)){ 135 case HFP_ENHANCED_CALL_STATUS_OUTGOING_DIALING: 136 case HFP_ENHANCED_CALL_STATUS_OUTGOING_ALERTING: 137 case HFP_ENHANCED_CALL_STATUS_INCOMING: 138 case HFP_ENHANCED_CALL_STATUS_INCOMING_WAITING: 139 return 1; 140 default: 141 return 0; 142 } 143 } 144 145 static void free_call_slot(int index_in_table){ 146 if ((index_in_table < 0) || (index_in_table > HFP_GSM_MAX_NR_CALLS)) return; 147 gsm_calls[index_in_table].used_slot = 0; 148 } 149 150 void hfp_gsm_init(void){ 151 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 152 clip_type = 0; 153 memset(clip_number, 0, sizeof(clip_number)); 154 memset(last_dialed_number, 0, sizeof(last_dialed_number)); 155 memset(gsm_calls, 0, sizeof(gsm_calls)); 156 int i; 157 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 158 free_call_slot(i); 159 } 160 } 161 162 static int get_number_calls_with_enhanced_status(hfp_enhanced_call_status_t enhanced_status){ 163 int i, count = 0; 164 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 165 if (get_enhanced_call_status(i) == (int) enhanced_status) count++; 166 } 167 return count; 168 } 169 170 static int get_call_index_with_enhanced_status(hfp_enhanced_call_status_t enhanced_status){ 171 int i ; 172 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 173 if (get_enhanced_call_status(i) == (int) enhanced_status) return i; 174 } 175 return -1; 176 } 177 178 static inline int get_initiated_call_index(void){ 179 int i ; 180 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 181 if (is_enhanced_call_status_initiated(i)) return i; 182 } 183 return -1; 184 } 185 186 static inline int get_next_free_slot(void){ 187 int i ; 188 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 189 if (!gsm_calls[i].used_slot) return i; 190 } 191 return -1; 192 } 193 194 static inline int get_active_call_index(void){ 195 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_ACTIVE); 196 } 197 198 static inline int get_held_call_index(void){ 199 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_HELD); 200 } 201 202 static inline int get_response_held_call_index(void){ 203 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD); 204 } 205 206 static inline int get_number_none_calls(void){ 207 int i, count = 0; 208 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 209 if (!gsm_calls[i].used_slot) count++; 210 } 211 return count; 212 } 213 214 static inline int get_number_active_calls(void){ 215 return get_number_calls_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_ACTIVE); 216 } 217 218 static inline int get_number_held_calls(void){ 219 return get_number_calls_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_HELD); 220 } 221 222 static inline int get_number_response_held_calls(void){ 223 return get_number_calls_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD); 224 } 225 226 static int next_call_index(void){ 227 return HFP_GSM_MAX_NR_CALLS + 1 - get_number_none_calls(); 228 } 229 230 static void hfp_gsm_set_clip(int index_in_table, uint8_t type, const char * number){ 231 uint16_t number_str_len = (uint16_t) strlen(number); 232 if (number_str_len == 0) return; 233 234 gsm_calls[index_in_table].clip_type = type; 235 int clip_number_size = btstack_min(number_str_len, HFP_GSM_MAX_CALL_NUMBER_SIZE - 1); 236 strncpy(gsm_calls[index_in_table].clip_number, number, clip_number_size); 237 gsm_calls[index_in_table].clip_number[clip_number_size] = '\0'; 238 strncpy(last_dialed_number, number, clip_number_size); 239 last_dialed_number[clip_number_size] = '\0'; 240 241 clip_type = 0; 242 memset(clip_number, 0, sizeof(clip_number)); 243 } 244 245 static void delete_call(int delete_index_in_table){ 246 int i ; 247 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 248 if (gsm_calls[i].index > gsm_calls[delete_index_in_table].index){ 249 gsm_calls[i].index--; 250 } 251 } 252 free_call_slot(delete_index_in_table); 253 254 gsm_calls[delete_index_in_table].clip_type = 0; 255 gsm_calls[delete_index_in_table].index = 0; 256 gsm_calls[delete_index_in_table].clip_number[0] = '\0'; 257 gsm_calls[delete_index_in_table].mpty = HFP_ENHANCED_CALL_MPTY_NOT_A_CONFERENCE_CALL; 258 } 259 260 261 static void create_call(hfp_enhanced_call_dir_t direction){ 262 int next_free_slot = get_next_free_slot(); 263 gsm_calls[next_free_slot].direction = direction; 264 gsm_calls[next_free_slot].index = next_call_index(); 265 set_enhanced_call_status_initiated(next_free_slot); 266 gsm_calls[next_free_slot].clip_type = 0; 267 gsm_calls[next_free_slot].clip_number[0] = '\0'; 268 gsm_calls[next_free_slot].mpty = HFP_ENHANCED_CALL_MPTY_NOT_A_CONFERENCE_CALL; 269 270 hfp_gsm_set_clip(next_free_slot, clip_type, clip_number); 271 } 272 273 274 int hfp_gsm_get_number_of_calls(void){ 275 return HFP_GSM_MAX_NR_CALLS - get_number_none_calls(); 276 } 277 278 void hfp_gsm_clear_last_dialed_number(void){ 279 memset(last_dialed_number, 0, sizeof(last_dialed_number)); 280 } 281 282 char * hfp_gsm_last_dialed_number(void){ 283 return &last_dialed_number[0]; 284 } 285 286 hfp_gsm_call_t * hfp_gsm_call(int call_index){ 287 int i; 288 289 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 290 hfp_gsm_call_t * call = &gsm_calls[i]; 291 if (call->index != call_index) continue; 292 return call; 293 } 294 return NULL; 295 } 296 297 uint8_t hfp_gsm_clip_type(void){ 298 if (clip_type != 0) return clip_type; 299 300 int initiated_call_index = get_initiated_call_index(); 301 if (initiated_call_index != -1){ 302 if (gsm_calls[initiated_call_index].clip_type != 0) { 303 return gsm_calls[initiated_call_index].clip_type; 304 } 305 } 306 307 int active_call_index = get_active_call_index(); 308 if (active_call_index != -1){ 309 if (gsm_calls[active_call_index].clip_type != 0) { 310 return gsm_calls[active_call_index].clip_type; 311 } 312 } 313 return 0; 314 } 315 316 char * hfp_gsm_clip_number(void){ 317 if (strlen(clip_number) != 0) return clip_number; 318 319 int initiated_call_index = get_initiated_call_index(); 320 if (initiated_call_index != -1){ 321 if (gsm_calls[initiated_call_index].clip_type != 0) { 322 return gsm_calls[initiated_call_index].clip_number; 323 } 324 } 325 326 int active_call_index = get_active_call_index(); 327 if (active_call_index != -1){ 328 if (gsm_calls[active_call_index].clip_type != 0) { 329 return gsm_calls[active_call_index].clip_number; 330 } 331 } 332 clip_number[0] = 0; 333 return clip_number; 334 } 335 336 hfp_call_status_t hfp_gsm_call_status(void){ 337 if (get_number_active_calls() + get_number_held_calls() + get_number_response_held_calls()){ 338 return HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT; 339 } 340 return HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS; 341 } 342 343 hfp_callheld_status_t hfp_gsm_callheld_status(void){ 344 // @note: order is important 345 if (get_number_held_calls() == 0){ 346 return HFP_CALLHELD_STATUS_NO_CALLS_HELD; 347 } 348 if (get_number_active_calls() == 0) { 349 return HFP_CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS; 350 } 351 return HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED; 352 } 353 354 hfp_callsetup_status_t hfp_gsm_callsetup_status(void){ 355 return callsetup_status; 356 } 357 358 static int hfp_gsm_response_held_active(void){ 359 return get_response_held_call_index() != -1 ; 360 } 361 362 int hfp_gsm_call_possible(void){ 363 return get_number_none_calls() > 0; 364 } 365 366 void hfp_gsm_handle_event(hfp_ag_call_event_t event){ 367 hfp_gsm_handler(event, 0, 0, NULL); 368 } 369 370 void hfp_gsm_handle_event_with_clip(hfp_ag_call_event_t event, uint8_t type, const char * number){ 371 hfp_gsm_handler(event, 0, type, number); 372 } 373 374 void hfp_gsm_handle_event_with_call_index(hfp_ag_call_event_t event, uint8_t index){ 375 hfp_gsm_handler(event, index, 0, NULL); 376 } 377 378 void hfp_gsm_handle_event_with_call_number(hfp_ag_call_event_t event, const char * number){ 379 hfp_gsm_handler(event, 0, 0, number); 380 } 381 382 static void hfp_gsm_handler(hfp_ag_call_event_t event, uint8_t index, uint8_t type, const char * number){ 383 int next_free_slot = get_next_free_slot(); 384 int current_call_index = get_active_call_index(); 385 int initiated_call_index = get_initiated_call_index(); 386 int held_call_index = get_held_call_index(); 387 int i; 388 389 switch (event){ 390 case HFP_AG_OUTGOING_CALL_INITIATED: 391 case HFP_AG_OUTGOING_REDIAL_INITIATED: 392 if (next_free_slot == -1){ 393 log_error("gsm: max call nr exceeded"); 394 return; 395 } 396 create_call(HFP_ENHANCED_CALL_DIR_OUTGOING); 397 break; 398 399 case HFP_AG_OUTGOING_CALL_REJECTED: 400 if (current_call_index != -1){ 401 delete_call(current_call_index); 402 } 403 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 404 break; 405 406 case HFP_AG_OUTGOING_CALL_ACCEPTED: 407 if (current_call_index != -1){ 408 set_enhanced_call_status_held(current_call_index); 409 } 410 set_callsetup_status(HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE); 411 break; 412 413 case HFP_AG_OUTGOING_CALL_RINGING: 414 if (current_call_index == -1){ 415 log_error("gsm: no active call"); 416 return; 417 } 418 set_callsetup_status(HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE); 419 break; 420 case HFP_AG_OUTGOING_CALL_ESTABLISHED: 421 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 422 set_enhanced_call_status_active(initiated_call_index); 423 break; 424 425 case HFP_AG_INCOMING_CALL: 426 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS) break; 427 set_callsetup_status(HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS); 428 create_call(HFP_ENHANCED_CALL_DIR_INCOMING); 429 break; 430 431 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG: 432 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 433 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 434 435 if (hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT){ 436 set_enhanced_call_status_held(current_call_index); 437 } 438 set_enhanced_call_status_active(initiated_call_index); 439 break; 440 441 case HFP_AG_HELD_CALL_JOINED_BY_AG: 442 if (hfp_gsm_call_status() != HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT) break; 443 444 // TODO: is following condition correct? Can we join incoming call before it is answered? 445 if (callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS){ 446 set_enhanced_call_status_active(initiated_call_index); 447 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 448 } else if (hfp_gsm_callheld_status() == HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED) { 449 set_enhanced_call_status_active(held_call_index); 450 } 451 452 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 453 if (is_enhanced_call_status_active(i)){ 454 gsm_calls[i].mpty = HFP_ENHANCED_CALL_MPTY_CONFERENCE_CALL; 455 } 456 } 457 break; 458 459 case HFP_AG_INCOMING_CALL_ACCEPTED_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_active(initiated_call_index); 464 break; 465 466 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG: 467 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF: 468 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) break; 469 if (hfp_gsm_call_status() != HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS) break; 470 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 471 set_enhanced_call_status_response_hold(initiated_call_index); 472 break; 473 474 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG: 475 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF: 476 if (!hfp_gsm_response_held_active()) break; 477 set_enhanced_call_status_active(get_response_held_call_index()); 478 break; 479 480 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG: 481 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF: 482 if (!hfp_gsm_response_held_active()) break; 483 delete_call(get_response_held_call_index()); 484 break; 485 486 487 case HFP_AG_TERMINATE_CALL_BY_HF: 488 switch (hfp_gsm_call_status()){ 489 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 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 delete_call(current_call_index); 494 break; 495 default: 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