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 BLUEKITCHEN 24 * GMBH 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 hfp_gsm_model_calls[HFP_GSM_MAX_NR_CALLS]; 68 static hfp_callsetup_status_t hfp_gsm_model_callsetup_status; 69 70 static uint8_t hfp_gsm_model_clip_type; 71 static char hfp_gsm_model_clip_number[HFP_GSM_MAX_CALL_NUMBER_SIZE]; 72 static char hfp_gsm_model_last_dialed_number[HFP_GSM_MAX_CALL_NUMBER_SIZE]; 73 74 static inline int hfp_gsm_model_get_number_active_calls(void); 75 76 static void set_callsetup_status(hfp_callsetup_status_t status){ 77 hfp_gsm_model_callsetup_status = status; 78 if (hfp_gsm_model_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 (hfp_gsm_model_calls[i].direction == HFP_ENHANCED_CALL_DIR_OUTGOING){ 83 hfp_gsm_model_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 hfp_gsm_model_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_ACTIVE; 91 hfp_gsm_model_calls[index_in_table].used_slot = true; 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 hfp_gsm_model_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_HELD; 97 hfp_gsm_model_calls[index_in_table].used_slot = true; 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 hfp_gsm_model_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD; 103 hfp_gsm_model_calls[index_in_table].used_slot = true; 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 (hfp_gsm_model_calls[index_in_table].direction == HFP_ENHANCED_CALL_DIR_OUTGOING){ 109 hfp_gsm_model_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_OUTGOING_DIALING; 110 } else { 111 if (hfp_gsm_model_get_number_active_calls() > 0){ 112 hfp_gsm_model_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_INCOMING_WAITING; 113 } else { 114 hfp_gsm_model_calls[index_in_table].enhanced_status = HFP_ENHANCED_CALL_STATUS_INCOMING; 115 } 116 } 117 hfp_gsm_model_calls[index_in_table].used_slot = true; 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 (!hfp_gsm_model_calls[index_in_table].used_slot) return -1; 123 return hfp_gsm_model_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 hfp_gsm_model_calls[index_in_table].used_slot = false; 147 } 148 149 void hfp_gsm_init(void){ 150 hfp_gsm_model_callsetup_status = HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS; 151 hfp_gsm_model_clip_type = 0; 152 memset(hfp_gsm_model_clip_number, 0, sizeof(hfp_gsm_model_clip_number)); 153 memset(hfp_gsm_model_last_dialed_number, 0, sizeof(hfp_gsm_model_last_dialed_number)); 154 memset(hfp_gsm_model_calls, 0, sizeof(hfp_gsm_model_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 (void) memset(hfp_gsm_model_calls, 0, sizeof(hfp_gsm_model_calls)); 163 hfp_gsm_model_callsetup_status = HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS; 164 hfp_gsm_model_clip_type = 0; 165 (void) memset(hfp_gsm_model_clip_number, 0, sizeof(hfp_gsm_model_clip_number)); 166 (void) memset(hfp_gsm_model_last_dialed_number, 0, sizeof(hfp_gsm_model_last_dialed_number)); 167 } 168 169 static int get_number_calls_with_enhanced_status(hfp_enhanced_call_status_t enhanced_status){ 170 int i, count = 0; 171 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 172 if (get_enhanced_call_status(i) == (int) enhanced_status) count++; 173 } 174 return count; 175 } 176 177 static int get_call_index_with_enhanced_status(hfp_enhanced_call_status_t enhanced_status){ 178 int i ; 179 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 180 if (get_enhanced_call_status(i) == (int) enhanced_status) return i; 181 } 182 return -1; 183 } 184 185 static inline int get_initiated_call_index(void){ 186 int i ; 187 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 188 if (is_enhanced_call_status_initiated(i)) return i; 189 } 190 return -1; 191 } 192 193 static inline int get_next_free_slot(void){ 194 int i ; 195 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 196 if (!hfp_gsm_model_calls[i].used_slot) return i; 197 } 198 return -1; 199 } 200 201 static inline int get_active_call_index(void){ 202 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_ACTIVE); 203 } 204 205 static inline int get_dialing_call_index(void){ 206 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_OUTGOING_DIALING); 207 } 208 209 static inline int get_held_call_index(void){ 210 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_HELD); 211 } 212 213 static inline int get_response_held_call_index(void){ 214 return get_call_index_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD); 215 } 216 217 static inline int get_number_none_calls(void){ 218 int i, count = 0; 219 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 220 if (!hfp_gsm_model_calls[i].used_slot) count++; 221 } 222 return count; 223 } 224 225 static inline int hfp_gsm_model_get_number_active_calls(void){ 226 return get_number_calls_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_ACTIVE); 227 } 228 229 static inline int get_number_held_calls(void){ 230 return get_number_calls_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_HELD); 231 } 232 233 static inline int get_number_response_held_calls(void){ 234 return get_number_calls_with_enhanced_status(HFP_ENHANCED_CALL_STATUS_CALL_HELD_BY_RESPONSE_AND_HOLD); 235 } 236 237 static int next_call_index(void){ 238 return HFP_GSM_MAX_NR_CALLS + 1 - get_number_none_calls(); 239 } 240 241 static void hfp_gsm_set_clip(int index_in_table, uint8_t type, const char * number){ 242 uint16_t number_str_len = (uint16_t) strlen(number); 243 if (number_str_len == 0) return; 244 245 hfp_gsm_model_calls[index_in_table].clip_type = type; 246 btstack_strcpy(hfp_gsm_model_calls[index_in_table].clip_number, HFP_GSM_MAX_CALL_NUMBER_SIZE, number); 247 btstack_strcpy(hfp_gsm_model_last_dialed_number, HFP_GSM_MAX_CALL_NUMBER_SIZE, number); 248 hfp_gsm_model_clip_type = 0; 249 memset(hfp_gsm_model_clip_number, 0, sizeof(hfp_gsm_model_clip_number)); 250 } 251 252 static void delete_call(int delete_index_in_table){ 253 int i ; 254 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 255 if (hfp_gsm_model_calls[i].index > hfp_gsm_model_calls[delete_index_in_table].index){ 256 hfp_gsm_model_calls[i].index--; 257 } 258 } 259 free_call_slot(delete_index_in_table); 260 261 hfp_gsm_model_calls[delete_index_in_table].clip_type = 0; 262 hfp_gsm_model_calls[delete_index_in_table].index = 0; 263 hfp_gsm_model_calls[delete_index_in_table].clip_number[0] = '\0'; 264 hfp_gsm_model_calls[delete_index_in_table].mpty = HFP_ENHANCED_CALL_MPTY_NOT_A_CONFERENCE_CALL; 265 } 266 267 268 static void create_call(hfp_enhanced_call_dir_t direction){ 269 int next_free_slot = get_next_free_slot(); 270 btstack_assert(next_free_slot >= 0); 271 hfp_gsm_model_calls[next_free_slot].direction = direction; 272 hfp_gsm_model_calls[next_free_slot].index = next_call_index(); 273 set_enhanced_call_status_initiated(next_free_slot); 274 hfp_gsm_model_calls[next_free_slot].clip_type = 0; 275 hfp_gsm_model_calls[next_free_slot].clip_number[0] = '\0'; 276 hfp_gsm_model_calls[next_free_slot].mpty = HFP_ENHANCED_CALL_MPTY_NOT_A_CONFERENCE_CALL; 277 278 hfp_gsm_set_clip(next_free_slot, hfp_gsm_model_clip_type, hfp_gsm_model_clip_number); 279 } 280 281 282 int hfp_gsm_get_number_of_calls(void){ 283 return HFP_GSM_MAX_NR_CALLS - get_number_none_calls(); 284 } 285 286 void hfp_gsm_clear_last_dialed_number(void){ 287 memset(hfp_gsm_model_last_dialed_number, 0, sizeof(hfp_gsm_model_last_dialed_number)); 288 } 289 290 char * hfp_gsm_last_dialed_number(void){ 291 return &hfp_gsm_model_last_dialed_number[0]; 292 } 293 294 void hfp_gsm_set_last_dialed_number(const char* number){ 295 btstack_strcpy(hfp_gsm_model_last_dialed_number, sizeof(hfp_gsm_model_last_dialed_number), number); 296 } 297 298 hfp_gsm_call_t * hfp_gsm_call(int call_index){ 299 int i; 300 301 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 302 hfp_gsm_call_t * call = &hfp_gsm_model_calls[i]; 303 if (call->index != call_index) continue; 304 return call; 305 } 306 return NULL; 307 } 308 309 uint8_t hfp_gsm_clip_type(void){ 310 if (hfp_gsm_model_clip_type != 0) return hfp_gsm_model_clip_type; 311 312 int initiated_call_index = get_initiated_call_index(); 313 if (initiated_call_index != -1){ 314 if (hfp_gsm_model_calls[initiated_call_index].clip_type != 0) { 315 return hfp_gsm_model_calls[initiated_call_index].clip_type; 316 } 317 } 318 319 int active_call_index = get_active_call_index(); 320 if (active_call_index != -1){ 321 if (hfp_gsm_model_calls[active_call_index].clip_type != 0) { 322 return hfp_gsm_model_calls[active_call_index].clip_type; 323 } 324 } 325 return 0; 326 } 327 328 char * hfp_gsm_clip_number(void){ 329 if (strlen(hfp_gsm_model_clip_number) != 0) return hfp_gsm_model_clip_number; 330 331 int initiated_call_index = get_initiated_call_index(); 332 if (initiated_call_index != -1){ 333 if (hfp_gsm_model_calls[initiated_call_index].clip_type != 0) { 334 return hfp_gsm_model_calls[initiated_call_index].clip_number; 335 } 336 } 337 338 int active_call_index = get_active_call_index(); 339 if (active_call_index != -1){ 340 if (hfp_gsm_model_calls[active_call_index].clip_type != 0) { 341 return hfp_gsm_model_calls[active_call_index].clip_number; 342 } 343 } 344 hfp_gsm_model_clip_number[0] = 0; 345 return hfp_gsm_model_clip_number; 346 } 347 348 hfp_call_status_t hfp_gsm_call_status(void){ 349 if (hfp_gsm_model_get_number_active_calls() + get_number_held_calls() + get_number_response_held_calls()){ 350 return HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT; 351 } 352 return HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS; 353 } 354 355 hfp_callheld_status_t hfp_gsm_callheld_status(void){ 356 // @note: order is important 357 if (get_number_held_calls() == 0){ 358 return HFP_CALLHELD_STATUS_NO_CALLS_HELD; 359 } 360 if (hfp_gsm_model_get_number_active_calls() == 0) { 361 return HFP_CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS; 362 } 363 return HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED; 364 } 365 366 hfp_callsetup_status_t hfp_gsm_callsetup_status(void){ 367 return hfp_gsm_model_callsetup_status; 368 } 369 370 static int hfp_gsm_response_held_active(void){ 371 return get_response_held_call_index() != -1 ; 372 } 373 374 int hfp_gsm_call_possible(void){ 375 return get_number_none_calls() > 0; 376 } 377 378 void hfp_gsm_handler(hfp_ag_call_event_t event, uint8_t index, uint8_t type, const char * number){ 379 int next_free_slot = get_next_free_slot(); 380 int current_call_index = get_active_call_index(); 381 int initiated_call_index = get_initiated_call_index(); 382 int held_call_index = get_held_call_index(); 383 int i; 384 385 switch (event){ 386 case HFP_AG_OUTGOING_CALL_INITIATED_BY_HF: 387 case HFP_AG_OUTGOING_CALL_INITIATED_BY_AG: 388 case HFP_AG_OUTGOING_REDIAL_INITIATED: 389 if (next_free_slot == -1){ 390 log_error("gsm: max call nr exceeded"); 391 return; 392 } 393 create_call(HFP_ENHANCED_CALL_DIR_OUTGOING); 394 break; 395 396 case HFP_AG_OUTGOING_CALL_REJECTED: 397 if (current_call_index != -1){ 398 delete_call(current_call_index); 399 } 400 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 401 break; 402 403 case HFP_AG_OUTGOING_CALL_ACCEPTED: 404 if (current_call_index != -1){ 405 set_enhanced_call_status_held(current_call_index); 406 } 407 set_callsetup_status(HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE); 408 break; 409 410 case HFP_AG_OUTGOING_CALL_RINGING: 411 current_call_index = get_dialing_call_index(); 412 if (current_call_index == -1){ 413 log_error("gsm: no active call"); 414 return; 415 } 416 set_callsetup_status(HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE); 417 break; 418 case HFP_AG_OUTGOING_CALL_ESTABLISHED: 419 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 420 set_enhanced_call_status_active(initiated_call_index); 421 break; 422 423 case HFP_AG_INCOMING_CALL: 424 if (hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS) break; 425 if (next_free_slot == -1){ 426 log_error("gsm: max call nr exceeded"); 427 return; 428 } 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 (hfp_gsm_model_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 hfp_gsm_model_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 default: 498 break; 499 } 500 break; 501 502 case HFP_AG_TERMINATE_CALL_BY_AG: 503 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 504 if (current_call_index != -1){ 505 delete_call(current_call_index); 506 break; 507 } 508 if (initiated_call_index != -1){ 509 delete_call(initiated_call_index); 510 break; 511 } 512 if (held_call_index != -1) { 513 delete_call(held_call_index); 514 break; 515 } 516 break; 517 518 case HFP_AG_CALL_DROPPED: 519 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 520 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 521 delete_call(i); 522 } 523 break; 524 525 case HFP_AG_CALL_HOLD_USER_BUSY: 526 // Held or waiting call gets active, 527 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 528 free_call_slot(initiated_call_index); 529 set_enhanced_call_status_active(held_call_index); 530 break; 531 532 case HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL: 533 if ((index != 0) && (index <= HFP_GSM_MAX_NR_CALLS) ){ 534 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 535 if (hfp_gsm_model_calls[i].index == index){ 536 delete_call(i); 537 continue; 538 } 539 } 540 } else { 541 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 542 if (is_enhanced_call_status_active(i)){ 543 delete_call(i); 544 } 545 } 546 } 547 548 if (hfp_gsm_model_callsetup_status != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS){ 549 set_enhanced_call_status_active(initiated_call_index); 550 } else { 551 set_enhanced_call_status_active(held_call_index); 552 } 553 554 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 555 break; 556 557 case HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL: 558 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 559 if (is_enhanced_call_status_active(i) && (hfp_gsm_model_calls[i].index != index)){ 560 set_enhanced_call_status_held(i); 561 } 562 } 563 564 if (hfp_gsm_model_callsetup_status != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS){ 565 set_enhanced_call_status_active(initiated_call_index); 566 } else { 567 set_enhanced_call_status_active(held_call_index); 568 } 569 set_callsetup_status(HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS); 570 break; 571 572 case HFP_AG_CALL_HOLD_ADD_HELD_CALL: 573 if (hfp_gsm_callheld_status() != HFP_CALLHELD_STATUS_NO_CALLS_HELD){ 574 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 575 if (hfp_gsm_model_calls[i].used_slot){ 576 set_enhanced_call_status_active(i); 577 hfp_gsm_model_calls[i].mpty = HFP_ENHANCED_CALL_MPTY_CONFERENCE_CALL; 578 } 579 } 580 } 581 break; 582 583 case HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS: 584 for (i = 0; i < HFP_GSM_MAX_NR_CALLS; i++){ 585 delete_call(i); 586 } 587 break; 588 589 case HFP_AG_SET_CLIP: 590 if (initiated_call_index != -1){ 591 hfp_gsm_set_clip(initiated_call_index, type, number); 592 break; 593 } 594 595 hfp_gsm_model_clip_type = type; 596 btstack_strcpy(hfp_gsm_model_clip_number, sizeof(hfp_gsm_model_clip_number), number); 597 break; 598 default: 599 break; 600 } 601 } 602