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_ag.c" 39 40 // ***************************************************************************** 41 // 42 // HFP Audio Gateway (AG) unit 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 "hci_cmd.h" 54 #include "btstack_run_loop.h" 55 56 #include "bluetooth_sdp.h" 57 #include "hci.h" 58 #include "btstack_memory.h" 59 #include "hci_dump.h" 60 #include "l2cap.h" 61 #include "btstack_debug.h" 62 #include "btstack_event.h" 63 #include "classic/core.h" 64 #include "classic/hfp.h" 65 #include "classic/hfp_ag.h" 66 #include "classic/hfp_gsm_model.h" 67 #include "classic/sdp_client_rfcomm.h" 68 #include "classic/sdp_server.h" 69 #include "classic/sdp_util.h" 70 71 // private prototypes 72 static void hfp_run_for_context(hfp_connection_t *hfp_connection); 73 static void hfp_ag_hf_start_ringing(hfp_connection_t * hfp_connection); 74 static void hfp_ag_setup_audio_connection(hfp_connection_t * hfp_connection); 75 76 // public prototypes 77 hfp_generic_status_indicator_t * get_hfp_generic_status_indicators(void); 78 int get_hfp_generic_status_indicators_nr(void); 79 void set_hfp_generic_status_indicators(hfp_generic_status_indicator_t * indicators, int indicator_nr); 80 void set_hfp_ag_indicators(hfp_ag_indicator_t * indicators, int indicator_nr); 81 int get_hfp_ag_indicators_nr(hfp_connection_t * context); 82 hfp_ag_indicator_t * get_hfp_ag_indicators(hfp_connection_t * context); 83 84 static btstack_packet_callback_registration_t hci_event_callback_registration; 85 86 // gobals 87 static const char default_hfp_ag_service_name[] = "Voice gateway"; 88 89 static uint16_t hfp_supported_features = HFP_DEFAULT_AG_SUPPORTED_FEATURES; 90 91 static uint8_t hfp_codecs_nr = 0; 92 static uint8_t hfp_codecs[HFP_MAX_NUM_CODECS]; 93 94 static int hfp_ag_indicators_nr = 0; 95 static hfp_ag_indicator_t hfp_ag_indicators[HFP_MAX_NUM_AG_INDICATORS]; 96 97 static int hfp_generic_status_indicators_nr = 0; 98 static hfp_generic_status_indicator_t hfp_generic_status_indicators[HFP_MAX_NUM_HF_INDICATORS]; 99 100 static int hfp_ag_call_hold_services_nr = 0; 101 static char *hfp_ag_call_hold_services[6]; 102 static btstack_packet_handler_t hfp_ag_callback; 103 104 static hfp_response_and_hold_state_t hfp_ag_response_and_hold_state; 105 static int hfp_ag_response_and_hold_active = 0; 106 107 // Subcriber information entries 108 static hfp_phone_number_t * subscriber_numbers = NULL; 109 static int subscriber_numbers_count = 0; 110 111 hfp_ag_indicator_t * hfp_ag_get_ag_indicators(hfp_connection_t * hfp_connection); 112 113 114 static int hfp_ag_get_ag_indicators_nr(hfp_connection_t * hfp_connection){ 115 if (hfp_connection->ag_indicators_nr != hfp_ag_indicators_nr){ 116 hfp_connection->ag_indicators_nr = hfp_ag_indicators_nr; 117 memcpy(hfp_connection->ag_indicators, hfp_ag_indicators, hfp_ag_indicators_nr * sizeof(hfp_ag_indicator_t)); 118 } 119 return hfp_connection->ag_indicators_nr; 120 } 121 122 hfp_ag_indicator_t * hfp_ag_get_ag_indicators(hfp_connection_t * hfp_connection){ 123 // TODO: save only value, and value changed in the hfp_connection? 124 if (hfp_connection->ag_indicators_nr != hfp_ag_indicators_nr){ 125 hfp_connection->ag_indicators_nr = hfp_ag_indicators_nr; 126 memcpy(hfp_connection->ag_indicators, hfp_ag_indicators, hfp_ag_indicators_nr * sizeof(hfp_ag_indicator_t)); 127 } 128 return (hfp_ag_indicator_t *)&(hfp_connection->ag_indicators); 129 } 130 131 static hfp_ag_indicator_t * get_ag_indicator_for_name(const char * name){ 132 int i; 133 for (i = 0; i < hfp_ag_indicators_nr; i++){ 134 if (strcmp(hfp_ag_indicators[i].name, name) == 0){ 135 return &hfp_ag_indicators[i]; 136 } 137 } 138 return NULL; 139 } 140 141 static int get_ag_indicator_index_for_name(const char * name){ 142 int i; 143 for (i = 0; i < hfp_ag_indicators_nr; i++){ 144 if (strcmp(hfp_ag_indicators[i].name, name) == 0){ 145 return i; 146 } 147 } 148 return -1; 149 } 150 151 static hfp_connection_t * get_hfp_ag_connection_context_for_acl_handle(uint16_t handle){ 152 btstack_linked_list_iterator_t it; 153 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 154 while (btstack_linked_list_iterator_has_next(&it)){ 155 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 156 if (hfp_connection->acl_handle != handle) continue; 157 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 158 return hfp_connection; 159 } 160 return NULL; 161 } 162 163 void hfp_ag_register_packet_handler(btstack_packet_handler_t callback){ 164 if (callback == NULL){ 165 log_error("hfp_ag_register_packet_handler called with NULL callback"); 166 return; 167 } 168 hfp_ag_callback = callback; 169 hfp_set_ag_callback(callback); 170 } 171 172 static int use_in_band_tone(void){ 173 return get_bit(hfp_supported_features, HFP_AGSF_IN_BAND_RING_TONE); 174 } 175 176 static int has_codec_negotiation_feature(hfp_connection_t * hfp_connection){ 177 int hf = get_bit(hfp_connection->remote_supported_features, HFP_HFSF_CODEC_NEGOTIATION); 178 int ag = get_bit(hfp_supported_features, HFP_AGSF_CODEC_NEGOTIATION); 179 return hf && ag; 180 } 181 182 static int has_call_waiting_and_3way_calling_feature(hfp_connection_t * hfp_connection){ 183 int hf = get_bit(hfp_connection->remote_supported_features, HFP_HFSF_THREE_WAY_CALLING); 184 int ag = get_bit(hfp_supported_features, HFP_AGSF_THREE_WAY_CALLING); 185 return hf && ag; 186 } 187 188 static int has_hf_indicators_feature(hfp_connection_t * hfp_connection){ 189 int hf = get_bit(hfp_connection->remote_supported_features, HFP_HFSF_HF_INDICATORS); 190 int ag = get_bit(hfp_supported_features, HFP_AGSF_HF_INDICATORS); 191 return hf && ag; 192 } 193 194 void hfp_ag_create_sdp_record(uint8_t * service, uint32_t service_record_handle, int rfcomm_channel_nr, const char * name, uint8_t ability_to_reject_call, uint16_t supported_features, int wide_band_speech){ 195 if (!name){ 196 name = default_hfp_ag_service_name; 197 } 198 hfp_create_sdp_record(service, service_record_handle, BLUETOOTH_SERVICE_CLASS_HANDSFREE_AUDIO_GATEWAY, rfcomm_channel_nr, name); 199 200 /* 201 * 0x01 – Ability to reject a call 202 * 0x00 – No ability to reject a call 203 */ 204 de_add_number(service, DE_UINT, DE_SIZE_16, 0x0301); // Hands-Free Profile - Network 205 de_add_number(service, DE_UINT, DE_SIZE_8, ability_to_reject_call); 206 207 // Construct SupportedFeatures for SDP bitmap: 208 // 209 // "The values of the “SupportedFeatures” bitmap given in Table 5.4 shall be the same as the values 210 // of the Bits 0 to 4 of the unsolicited result code +BRSF" 211 // 212 uint16_t sdp_features = supported_features &0x1f; 213 if (supported_features & wide_band_speech){ 214 sdp_features |= 1 << 5; // Wide band speech bit 215 } 216 de_add_number(service, DE_UINT, DE_SIZE_16, 0x0311); // Hands-Free Profile - SupportedFeatures 217 de_add_number(service, DE_UINT, DE_SIZE_16, sdp_features); 218 } 219 220 static int hfp_ag_send_change_in_band_ring_tone_setting_cmd(uint16_t cid){ 221 char buffer[20]; 222 sprintf(buffer, "\r\n%s:%d\r\n", HFP_CHANGE_IN_BAND_RING_TONE_SETTING, use_in_band_tone()); 223 return send_str_over_rfcomm(cid, buffer); 224 } 225 226 static int hfp_ag_exchange_supported_features_cmd(uint16_t cid){ 227 char buffer[40]; 228 sprintf(buffer, "\r\n%s:%d\r\n\r\nOK\r\n", HFP_SUPPORTED_FEATURES, hfp_supported_features); 229 return send_str_over_rfcomm(cid, buffer); 230 } 231 232 static int hfp_ag_send_ok(uint16_t cid){ 233 char buffer[10]; 234 sprintf(buffer, "\r\nOK\r\n"); 235 return send_str_over_rfcomm(cid, buffer); 236 } 237 238 static int hfp_ag_send_ring(uint16_t cid){ 239 return send_str_over_rfcomm(cid, (char *) "\r\nRING\r\n"); 240 } 241 242 static int hfp_ag_send_clip(uint16_t cid){ 243 char buffer[50]; 244 sprintf(buffer, "\r\n%s: \"%s\",%u\r\n", HFP_ENABLE_CLIP, hfp_gsm_clip_number(), hfp_gsm_clip_type()); 245 return send_str_over_rfcomm(cid, buffer); 246 } 247 248 static int hfp_send_subscriber_number_cmd(uint16_t cid, uint8_t type, const char * number){ 249 char buffer[50]; 250 sprintf(buffer, "\r\n%s: ,\"%s\",%u, , \r\n", HFP_SUBSCRIBER_NUMBER_INFORMATION, number, type); 251 return send_str_over_rfcomm(cid, buffer); 252 } 253 254 static int hfp_ag_send_phone_number_for_voice_tag_cmd(uint16_t cid){ 255 char buffer[50]; 256 sprintf(buffer, "\r\n%s: %s\r\n", HFP_PHONE_NUMBER_FOR_VOICE_TAG, hfp_gsm_clip_number()); 257 return send_str_over_rfcomm(cid, buffer); 258 } 259 260 static int hfp_ag_send_call_waiting_notification(uint16_t cid){ 261 char buffer[50]; 262 sprintf(buffer, "\r\n%s: \"%s\",%u\r\n", HFP_ENABLE_CALL_WAITING_NOTIFICATION, hfp_gsm_clip_number(), hfp_gsm_clip_type()); 263 return send_str_over_rfcomm(cid, buffer); 264 } 265 266 static int hfp_ag_send_error(uint16_t cid){ 267 char buffer[10]; 268 sprintf(buffer, "\r\nERROR\r\n"); 269 return send_str_over_rfcomm(cid, buffer); 270 } 271 272 static int hfp_ag_send_report_extended_audio_gateway_error(uint16_t cid, uint8_t error){ 273 char buffer[20]; 274 sprintf(buffer, "\r\n%s=%d\r\n", HFP_EXTENDED_AUDIO_GATEWAY_ERROR, error); 275 return send_str_over_rfcomm(cid, buffer); 276 } 277 278 // get size for indicator string 279 static int hfp_ag_indicators_string_size(hfp_connection_t * hfp_connection, int i){ 280 // template: ("$NAME",($MIN,$MAX)) 281 return 8 + (int) strlen(hfp_ag_get_ag_indicators(hfp_connection)[i].name) 282 + string_len_for_uint32(hfp_ag_get_ag_indicators(hfp_connection)[i].min_range) 283 + string_len_for_uint32(hfp_ag_get_ag_indicators(hfp_connection)[i].min_range); 284 } 285 286 // store indicator 287 static void hfp_ag_indicators_string_store(hfp_connection_t * hfp_connection, int i, uint8_t * buffer){ 288 sprintf((char *) buffer, "(\"%s\",(%d,%d)),", 289 hfp_ag_get_ag_indicators(hfp_connection)[i].name, 290 hfp_ag_get_ag_indicators(hfp_connection)[i].min_range, 291 hfp_ag_get_ag_indicators(hfp_connection)[i].max_range); 292 } 293 294 // structure: header [indicator [comma indicator]] footer 295 static int hfp_ag_indicators_cmd_generator_num_segments(hfp_connection_t * hfp_connection){ 296 int num_indicators = hfp_ag_get_ag_indicators_nr(hfp_connection); 297 if (!num_indicators) return 2; 298 return 3 + (num_indicators-1) * 2; 299 } 300 301 // get size of individual segment for hfp_ag_retrieve_indicators_cmd 302 static int hfp_ag_indicators_cmd_generator_get_segment_len(hfp_connection_t * hfp_connection, int index){ 303 if (index == 0) { 304 return strlen(HFP_INDICATOR) + 3; // "\n\r%s:"" 305 } 306 index--; 307 int num_indicators = hfp_ag_get_ag_indicators_nr(hfp_connection); 308 int indicator_index = index >> 1; 309 if ((index & 1) == 0){ 310 return hfp_ag_indicators_string_size(hfp_connection, indicator_index); 311 } 312 if (indicator_index == num_indicators - 1){ 313 return 8; // "\r\n\r\nOK\r\n" 314 } 315 return 1; // comma 316 } 317 318 static void hgp_ag_indicators_cmd_generator_store_segment(hfp_connection_t * hfp_connection, int index, uint8_t * buffer){ 319 if (index == 0){ 320 *buffer++ = '\r'; 321 *buffer++ = '\n'; 322 int len = strlen(HFP_INDICATOR); 323 memcpy(buffer, HFP_INDICATOR, len); 324 buffer += len; 325 *buffer++ = ':'; 326 return; 327 } 328 index--; 329 int num_indicators = hfp_ag_get_ag_indicators_nr(hfp_connection); 330 int indicator_index = index >> 1; 331 if ((index & 1) == 0){ 332 hfp_ag_indicators_string_store(hfp_connection, indicator_index, buffer); 333 return; 334 } 335 if (indicator_index == num_indicators-1){ 336 memcpy(buffer, "\r\n\r\nOK\r\n", 8); 337 return; 338 } 339 *buffer = ','; 340 } 341 342 static int hfp_hf_indicators_join(char * buffer, int buffer_size){ 343 if (buffer_size < hfp_ag_indicators_nr * 3) return 0; 344 int i; 345 int offset = 0; 346 for (i = 0; i < hfp_generic_status_indicators_nr-1; i++) { 347 offset += snprintf(buffer+offset, buffer_size-offset, "%d,", hfp_generic_status_indicators[i].uuid); 348 } 349 if (i < hfp_generic_status_indicators_nr){ 350 offset += snprintf(buffer+offset, buffer_size-offset, "%d,", hfp_generic_status_indicators[i].uuid); 351 } 352 return offset; 353 } 354 355 static int hfp_hf_indicators_initial_status_join(char * buffer, int buffer_size){ 356 if (buffer_size < hfp_generic_status_indicators_nr * 3) return 0; 357 int i; 358 int offset = 0; 359 for (i = 0; i < hfp_generic_status_indicators_nr; i++) { 360 offset += snprintf(buffer+offset, buffer_size-offset, "\r\n%s:%d,%d\r\n", HFP_GENERIC_STATUS_INDICATOR, hfp_generic_status_indicators[i].uuid, hfp_generic_status_indicators[i].state); 361 } 362 return offset; 363 } 364 365 static int hfp_ag_indicators_status_join(char * buffer, int buffer_size){ 366 if (buffer_size < hfp_ag_indicators_nr * 3) return 0; 367 int i; 368 int offset = 0; 369 for (i = 0; i < hfp_ag_indicators_nr-1; i++) { 370 offset += snprintf(buffer+offset, buffer_size-offset, "%d,", hfp_ag_indicators[i].status); 371 } 372 if (i<hfp_ag_indicators_nr){ 373 offset += snprintf(buffer+offset, buffer_size-offset, "%d", hfp_ag_indicators[i].status); 374 } 375 return offset; 376 } 377 378 static int hfp_ag_call_services_join(char * buffer, int buffer_size){ 379 if (buffer_size < hfp_ag_call_hold_services_nr * 3) return 0; 380 int i; 381 int offset = snprintf(buffer, buffer_size, "("); 382 for (i = 0; i < hfp_ag_call_hold_services_nr-1; i++) { 383 offset += snprintf(buffer+offset, buffer_size-offset, "%s,", hfp_ag_call_hold_services[i]); 384 } 385 if (i<hfp_ag_call_hold_services_nr){ 386 offset += snprintf(buffer+offset, buffer_size-offset, "%s)", hfp_ag_call_hold_services[i]); 387 } 388 return offset; 389 } 390 391 static int hfp_ag_send_cmd_via_generator(uint16_t cid, hfp_connection_t * hfp_connection, 392 int start_segment, int num_segments, 393 int (*get_segment_len)(hfp_connection_t * hfp_connection, int segment), 394 void (*store_segment) (hfp_connection_t * hfp_connection, int segment, uint8_t * buffer)){ 395 396 // assumes: can send now == true 397 // assumes: num segments > 0 398 // assumes: individual segments are smaller than MTU 399 rfcomm_reserve_packet_buffer(); 400 int mtu = rfcomm_get_max_frame_size(cid); 401 uint8_t * data = rfcomm_get_outgoing_buffer(); 402 int offset = 0; 403 int segment = start_segment; 404 while (segment < num_segments){ 405 int segment_len = get_segment_len(hfp_connection, segment); 406 if (offset + segment_len > mtu) break; 407 // append segement 408 store_segment(hfp_connection, segment, data+offset); 409 offset += segment_len; 410 segment++; 411 } 412 rfcomm_send_prepared(cid, offset); 413 return segment; 414 } 415 416 // returns next segment to store 417 static int hfp_ag_send_retrieve_indicators_cmd_via_generator(uint16_t cid, hfp_connection_t * hfp_connection, int start_segment){ 418 int num_segments = hfp_ag_indicators_cmd_generator_num_segments(hfp_connection); 419 return hfp_ag_send_cmd_via_generator(cid, hfp_connection, start_segment, num_segments, 420 hfp_ag_indicators_cmd_generator_get_segment_len, hgp_ag_indicators_cmd_generator_store_segment); 421 } 422 423 static int hfp_ag_send_retrieve_indicators_status_cmd(uint16_t cid){ 424 char buffer[40]; 425 const int size = sizeof(buffer); 426 int offset = snprintf(buffer, size, "\r\n%s:", HFP_INDICATOR); 427 offset += hfp_ag_indicators_status_join(buffer+offset, size-offset-9); 428 offset += snprintf(buffer+offset, size-offset, "\r\n\r\nOK\r\n"); 429 return send_str_over_rfcomm(cid, buffer); 430 } 431 432 static int hfp_ag_send_retrieve_can_hold_call_cmd(uint16_t cid){ 433 char buffer[40]; 434 const int size = sizeof(buffer); 435 int offset = snprintf(buffer, size, "\r\n%s:", HFP_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES); 436 offset += hfp_ag_call_services_join(buffer+offset, size-offset-9); 437 offset += snprintf(buffer+offset, size-offset, "\r\n\r\nOK\r\n"); 438 return send_str_over_rfcomm(cid, buffer); 439 } 440 441 442 static int hfp_ag_send_list_supported_generic_status_indicators_cmd(uint16_t cid){ 443 return hfp_ag_send_ok(cid); 444 } 445 446 static int hfp_ag_send_retrieve_supported_generic_status_indicators_cmd(uint16_t cid){ 447 char buffer[40]; 448 const int size = sizeof(buffer); 449 int offset = snprintf(buffer, size, "\r\n%s:(", HFP_GENERIC_STATUS_INDICATOR); 450 offset += hfp_hf_indicators_join(buffer+offset, size-offset-10); 451 offset += snprintf(buffer+offset, size-offset, ")\r\n\r\nOK\r\n"); 452 return send_str_over_rfcomm(cid, buffer); 453 } 454 455 static int hfp_ag_send_retrieve_initital_supported_generic_status_indicators_cmd(uint16_t cid){ 456 char buffer[40]; 457 int offset = hfp_hf_indicators_initial_status_join(buffer, sizeof(buffer) - 7); 458 snprintf(buffer+offset, sizeof(buffer)-offset, "\r\nOK\r\n"); 459 return send_str_over_rfcomm(cid, buffer); 460 } 461 462 static int hfp_ag_send_transfer_ag_indicators_status_cmd(uint16_t cid, hfp_ag_indicator_t * indicator){ 463 char buffer[20]; 464 sprintf(buffer, "\r\n%s:%d,%d\r\n", HFP_TRANSFER_AG_INDICATOR_STATUS, indicator->index, indicator->status); 465 return send_str_over_rfcomm(cid, buffer); 466 } 467 468 static int hfp_ag_send_report_network_operator_name_cmd(uint16_t cid, hfp_network_opearator_t op){ 469 char buffer[41]; 470 if (strlen(op.name) == 0){ 471 snprintf(buffer, sizeof(buffer), "\r\n%s:%d,,\r\n\r\nOK\r\n", HFP_QUERY_OPERATOR_SELECTION, op.mode); 472 } else { 473 int offset = snprintf(buffer, sizeof(buffer), "\r\n%s:%d,%d,", HFP_QUERY_OPERATOR_SELECTION, op.mode, op.format); 474 offset += snprintf(buffer+offset, 16, "%s", op.name); 475 snprintf(buffer+offset, sizeof(buffer)-offset, "\r\n\r\nOK\r\n"); 476 } 477 return send_str_over_rfcomm(cid, buffer); 478 } 479 480 static inline int hfp_ag_send_cmd_with_int(uint16_t cid, const char * cmd, uint8_t value){ 481 char buffer[30]; 482 snprintf(buffer, sizeof(buffer), "\r\n%s:%d\r\n", cmd, value); 483 return send_str_over_rfcomm(cid, buffer); 484 } 485 486 static int hfp_ag_send_suggest_codec_cmd(uint16_t cid, uint8_t codec){ 487 return hfp_ag_send_cmd_with_int(cid, HFP_CONFIRM_COMMON_CODEC, codec); 488 } 489 490 static int hfp_ag_send_activate_voice_recognition_cmd(uint16_t cid, uint8_t activate_voice_recognition){ 491 return hfp_ag_send_cmd_with_int(cid, HFP_ACTIVATE_VOICE_RECOGNITION, activate_voice_recognition); 492 } 493 494 static int hfp_ag_send_set_speaker_gain_cmd(uint16_t cid, uint8_t gain){ 495 return hfp_ag_send_cmd_with_int(cid, HFP_SET_SPEAKER_GAIN, gain); 496 } 497 498 static int hfp_ag_send_set_microphone_gain_cmd(uint16_t cid, uint8_t gain){ 499 return hfp_ag_send_cmd_with_int(cid, HFP_SET_MICROPHONE_GAIN, gain); 500 } 501 502 static int hfp_ag_send_set_response_and_hold(uint16_t cid, int state){ 503 return hfp_ag_send_cmd_with_int(cid, HFP_RESPONSE_AND_HOLD, state); 504 } 505 506 static uint8_t hfp_ag_suggest_codec(hfp_connection_t *hfp_connection){ 507 if (hfp_connection->sco_for_msbc_failed) return HFP_CODEC_CVSD; 508 509 if (hfp_supports_codec(HFP_CODEC_MSBC, hfp_codecs_nr, hfp_codecs)){ 510 if (hfp_supports_codec(HFP_CODEC_MSBC, hfp_connection->remote_codecs_nr, hfp_connection->remote_codecs)){ 511 return HFP_CODEC_MSBC; 512 } 513 } 514 return HFP_CODEC_CVSD; 515 } 516 517 static void hfp_init_link_settings(hfp_connection_t * hfp_connection){ 518 // determine highest possible link setting 519 hfp_connection->link_setting = HFP_LINK_SETTINGS_D1; 520 // anything else requires eSCO support on both sides 521 if (hci_extended_sco_link_supported() && hci_remote_esco_supported(hfp_connection->acl_handle)){ 522 switch (hfp_connection->negotiated_codec){ 523 case HFP_CODEC_CVSD: 524 hfp_connection->link_setting = HFP_LINK_SETTINGS_S3; 525 if ((hfp_connection->remote_supported_features & (1<<HFP_HFSF_ESCO_S4)) 526 && (hfp_supported_features & (1<<HFP_AGSF_ESCO_S4))){ 527 hfp_connection->link_setting = HFP_LINK_SETTINGS_S4; 528 } 529 break; 530 case HFP_CODEC_MSBC: 531 hfp_connection->link_setting = HFP_LINK_SETTINGS_T2; 532 break; 533 default: 534 break; 535 } 536 } 537 log_info("hfp_init_link_settings: %u", hfp_connection->link_setting); 538 } 539 540 static int codecs_exchange_state_machine(hfp_connection_t * hfp_connection){ 541 /* events ( == commands): 542 HFP_CMD_AVAILABLE_CODECS == received AT+BAC with list of codecs 543 HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP: 544 hf_trigger_codec_connection_setup == received BCC 545 ag_trigger_codec_connection_setup == received from AG to send BCS 546 HFP_CMD_HF_CONFIRMED_CODEC == received AT+BCS 547 */ 548 549 switch (hfp_connection->codecs_state){ 550 case HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE: 551 hfp_connection->command = HFP_CMD_AG_SEND_COMMON_CODEC; 552 break; 553 case HFP_CODECS_AG_RESEND_COMMON_CODEC: 554 hfp_connection->command = HFP_CMD_AG_SEND_COMMON_CODEC; 555 break; 556 default: 557 break; 558 } 559 560 // printf(" -> State machine: CC\n"); 561 562 switch (hfp_connection->command){ 563 case HFP_CMD_AVAILABLE_CODECS: 564 if (hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED){ 565 hfp_connection->codecs_state = HFP_CODECS_RECEIVED_LIST; 566 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 567 return 1; 568 } 569 570 switch (hfp_connection->codecs_state){ 571 case HFP_CODECS_AG_SENT_COMMON_CODEC: 572 case HFP_CODECS_EXCHANGED: 573 hfp_connection->codecs_state = HFP_CODECS_AG_RESEND_COMMON_CODEC; 574 break; 575 default: 576 break; 577 } 578 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 579 return 1; 580 581 case HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP: 582 hfp_connection->codecs_state = HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE; 583 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 584 return 1; 585 586 case HFP_CMD_AG_SEND_COMMON_CODEC: 587 hfp_connection->codecs_state = HFP_CODECS_AG_SENT_COMMON_CODEC; 588 hfp_connection->suggested_codec = hfp_ag_suggest_codec(hfp_connection); 589 hfp_ag_send_suggest_codec_cmd(hfp_connection->rfcomm_cid, hfp_connection->suggested_codec); 590 return 1; 591 592 case HFP_CMD_HF_CONFIRMED_CODEC: 593 if (hfp_connection->codec_confirmed != hfp_connection->suggested_codec){ 594 hfp_connection->codecs_state = HFP_CODECS_ERROR; 595 hfp_ag_send_error(hfp_connection->rfcomm_cid); 596 return 1; 597 } 598 hfp_connection->negotiated_codec = hfp_connection->codec_confirmed; 599 hfp_connection->codecs_state = HFP_CODECS_EXCHANGED; 600 log_info("hfp: codec confirmed: %s", hfp_connection->negotiated_codec == HFP_CODEC_MSBC ? "mSBC" : "CVSD"); 601 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 602 // now, pick link settings 603 hfp_init_link_settings(hfp_connection); 604 return 1; 605 default: 606 break; 607 } 608 return 0; 609 } 610 611 static void hfp_ag_slc_established(hfp_connection_t * hfp_connection){ 612 hfp_connection->state = HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED; 613 hfp_emit_slc_connection_event(hfp_connection, 0, hfp_connection->acl_handle, hfp_connection->remote_addr); 614 615 // if active call exist, set per-hfp_connection state active, too (when audio is on) 616 if (hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT){ 617 hfp_connection->call_state = HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE; 618 } 619 // if AG is ringing, also start ringing on the HF 620 if (hfp_gsm_call_status() == HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS && 621 hfp_gsm_callsetup_status() == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS){ 622 hfp_ag_hf_start_ringing(hfp_connection); 623 } 624 } 625 626 static int hfp_ag_run_for_context_service_level_connection(hfp_connection_t * hfp_connection){ 627 // log_info("hfp_ag_run_for_context_service_level_connection state %u, command %u", hfp_connection->state, hfp_connection->command); 628 if (hfp_connection->state >= HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) return 0; 629 int sent = 0; 630 switch(hfp_connection->command){ 631 case HFP_CMD_SUPPORTED_FEATURES: 632 switch(hfp_connection->state){ 633 case HFP_W4_EXCHANGE_SUPPORTED_FEATURES: 634 case HFP_EXCHANGE_SUPPORTED_FEATURES: 635 hfp_hf_drop_mSBC_if_eSCO_not_supported(hfp_codecs, &hfp_codecs_nr); 636 if (has_codec_negotiation_feature(hfp_connection)){ 637 hfp_connection->state = HFP_W4_NOTIFY_ON_CODECS; 638 } else { 639 hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS; 640 } 641 hfp_ag_exchange_supported_features_cmd(hfp_connection->rfcomm_cid); 642 return 1; 643 default: 644 break; 645 } 646 break; 647 case HFP_CMD_AVAILABLE_CODECS: 648 sent = codecs_exchange_state_machine(hfp_connection); 649 if (hfp_connection->codecs_state == HFP_CODECS_RECEIVED_LIST){ 650 hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS; 651 } 652 return sent; 653 654 case HFP_CMD_RETRIEVE_AG_INDICATORS: 655 if (hfp_connection->state == HFP_W4_RETRIEVE_INDICATORS) { 656 // HF requested AG Indicators and we did expect it 657 hfp_connection->state = HFP_RETRIEVE_INDICATORS; 658 // continue below in state switch 659 } 660 break; 661 662 case HFP_CMD_RETRIEVE_AG_INDICATORS_STATUS: 663 if (hfp_connection->state != HFP_W4_RETRIEVE_INDICATORS_STATUS) break; 664 hfp_connection->state = HFP_W4_ENABLE_INDICATORS_STATUS_UPDATE; 665 hfp_ag_send_retrieve_indicators_status_cmd(hfp_connection->rfcomm_cid); 666 return 1; 667 668 case HFP_CMD_ENABLE_INDICATOR_STATUS_UPDATE: 669 if (hfp_connection->state != HFP_W4_ENABLE_INDICATORS_STATUS_UPDATE) break; 670 if (has_call_waiting_and_3way_calling_feature(hfp_connection)){ 671 hfp_connection->state = HFP_W4_RETRIEVE_CAN_HOLD_CALL; 672 } else if (has_hf_indicators_feature(hfp_connection)){ 673 hfp_connection->state = HFP_W4_LIST_GENERIC_STATUS_INDICATORS; 674 } else { 675 hfp_ag_slc_established(hfp_connection); 676 } 677 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 678 return 1; 679 680 case HFP_CMD_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES: 681 if (hfp_connection->state != HFP_W4_RETRIEVE_CAN_HOLD_CALL) break; 682 if (has_hf_indicators_feature(hfp_connection)){ 683 hfp_connection->state = HFP_W4_LIST_GENERIC_STATUS_INDICATORS; 684 } 685 hfp_ag_send_retrieve_can_hold_call_cmd(hfp_connection->rfcomm_cid); 686 if (!has_hf_indicators_feature(hfp_connection)){ 687 hfp_ag_slc_established(hfp_connection); 688 } 689 return 1; 690 691 case HFP_CMD_LIST_GENERIC_STATUS_INDICATORS: 692 if (hfp_connection->state != HFP_W4_LIST_GENERIC_STATUS_INDICATORS) break; 693 hfp_connection->state = HFP_W4_RETRIEVE_GENERIC_STATUS_INDICATORS; 694 hfp_ag_send_list_supported_generic_status_indicators_cmd(hfp_connection->rfcomm_cid); 695 return 1; 696 697 case HFP_CMD_RETRIEVE_GENERIC_STATUS_INDICATORS: 698 if (hfp_connection->state != HFP_W4_RETRIEVE_GENERIC_STATUS_INDICATORS) break; 699 hfp_connection->state = HFP_W4_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS; 700 hfp_ag_send_retrieve_supported_generic_status_indicators_cmd(hfp_connection->rfcomm_cid); 701 return 1; 702 703 case HFP_CMD_RETRIEVE_GENERIC_STATUS_INDICATORS_STATE: 704 if (hfp_connection->state != HFP_W4_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS) break; 705 hfp_ag_slc_established(hfp_connection); 706 hfp_ag_send_retrieve_initital_supported_generic_status_indicators_cmd(hfp_connection->rfcomm_cid); 707 return 1; 708 default: 709 break; 710 } 711 712 switch (hfp_connection->state){ 713 case HFP_RETRIEVE_INDICATORS: { 714 int next_segment = hfp_ag_send_retrieve_indicators_cmd_via_generator(hfp_connection->rfcomm_cid, hfp_connection, hfp_connection->send_ag_indicators_segment); 715 int num_segments = hfp_ag_indicators_cmd_generator_num_segments(hfp_connection); 716 log_info("HFP_CMD_RETRIEVE_AG_INDICATORS next segment %u, num_segments %u", next_segment, num_segments); 717 if (next_segment < num_segments){ 718 // prepare sending of next segment 719 hfp_connection->send_ag_indicators_segment = next_segment; 720 log_info("HFP_CMD_RETRIEVE_AG_INDICATORS more. command %u, next seg %u", hfp_connection->command, next_segment); 721 } else { 722 // done, go to next state 723 hfp_connection->send_ag_indicators_segment = 0; 724 hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS_STATUS; 725 } 726 return 1; 727 } 728 default: 729 break; 730 } 731 return 0; 732 } 733 734 static int hfp_ag_run_for_context_service_level_connection_queries(hfp_connection_t * hfp_connection){ 735 int sent = codecs_exchange_state_machine(hfp_connection); 736 if (sent) return 1; 737 738 switch(hfp_connection->command){ 739 case HFP_CMD_AG_ACTIVATE_VOICE_RECOGNITION: 740 hfp_supported_features = store_bit(hfp_supported_features, HFP_AGSF_VOICE_RECOGNITION_FUNCTION, hfp_connection->ag_activate_voice_recognition); 741 hfp_ag_send_activate_voice_recognition_cmd(hfp_connection->rfcomm_cid, hfp_connection->ag_activate_voice_recognition); 742 return 1; 743 case HFP_CMD_HF_ACTIVATE_VOICE_RECOGNITION: 744 if (get_bit(hfp_supported_features, HFP_AGSF_VOICE_RECOGNITION_FUNCTION)){ 745 hfp_supported_features = store_bit(hfp_supported_features, HFP_AGSF_VOICE_RECOGNITION_FUNCTION, hfp_connection->ag_activate_voice_recognition); 746 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 747 hfp_ag_setup_audio_connection(hfp_connection); 748 } else { 749 hfp_ag_send_error(hfp_connection->rfcomm_cid); 750 } 751 return 1; 752 case HFP_CMD_CHANGE_IN_BAND_RING_TONE_SETTING: 753 hfp_ag_send_change_in_band_ring_tone_setting_cmd(hfp_connection->rfcomm_cid); 754 return 1; 755 case HFP_CMD_QUERY_OPERATOR_SELECTION_NAME: 756 hfp_ag_send_report_network_operator_name_cmd(hfp_connection->rfcomm_cid, hfp_connection->network_operator); 757 return 1; 758 case HFP_CMD_QUERY_OPERATOR_SELECTION_NAME_FORMAT: 759 if (hfp_connection->network_operator.format != 0){ 760 hfp_ag_send_error(hfp_connection->rfcomm_cid); 761 } else { 762 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 763 } 764 return 1; 765 case HFP_CMD_ENABLE_INDIVIDUAL_AG_INDICATOR_STATUS_UPDATE: 766 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 767 return 1; 768 case HFP_CMD_ENABLE_EXTENDED_AUDIO_GATEWAY_ERROR: 769 if (hfp_connection->extended_audio_gateway_error){ 770 hfp_connection->extended_audio_gateway_error = 0; 771 hfp_ag_send_report_extended_audio_gateway_error(hfp_connection->rfcomm_cid, hfp_connection->extended_audio_gateway_error_value); 772 return 1; 773 } 774 break; 775 case HFP_CMD_ENABLE_INDICATOR_STATUS_UPDATE: 776 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 777 return 1; 778 default: 779 break; 780 } 781 return 0; 782 } 783 784 static int hfp_ag_run_for_audio_connection(hfp_connection_t * hfp_connection){ 785 if (hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED || 786 hfp_connection->state > HFP_W2_DISCONNECT_SCO) return 0; 787 788 789 if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED && hfp_connection->release_audio_connection){ 790 hfp_connection->state = HFP_W4_SCO_DISCONNECTED; 791 hfp_connection->release_audio_connection = 0; 792 gap_disconnect(hfp_connection->sco_handle); 793 return 1; 794 } 795 796 if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED) return 0; 797 798 // run codecs exchange 799 int sent = codecs_exchange_state_machine(hfp_connection); 800 if (sent) return 1; 801 802 if (hfp_connection->codecs_state != HFP_CODECS_EXCHANGED) return 0; 803 if (hfp_connection->establish_audio_connection){ 804 hfp_connection->state = HFP_W4_SCO_CONNECTED; 805 hfp_connection->establish_audio_connection = 0; 806 hfp_setup_synchronous_connection(hfp_connection); 807 return 1; 808 } 809 return 0; 810 } 811 812 static hfp_connection_t * hfp_ag_context_for_timer(btstack_timer_source_t * ts){ 813 btstack_linked_list_iterator_t it; 814 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 815 816 while (btstack_linked_list_iterator_has_next(&it)){ 817 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 818 if ( & hfp_connection->hfp_timeout == ts) { 819 return hfp_connection; 820 } 821 } 822 return NULL; 823 } 824 825 static void hfp_timeout_handler(btstack_timer_source_t * timer){ 826 hfp_connection_t * hfp_connection = hfp_ag_context_for_timer(timer); 827 if (!hfp_connection) return; 828 829 log_info("HFP start ring timeout, con handle 0x%02x", hfp_connection->acl_handle); 830 hfp_connection->ag_ring = 1; 831 hfp_connection->ag_send_clip = hfp_gsm_clip_type() && hfp_connection->clip_enabled; 832 833 btstack_run_loop_set_timer(& hfp_connection->hfp_timeout, 2000); // 2 seconds timeout 834 btstack_run_loop_add_timer(& hfp_connection->hfp_timeout); 835 836 hfp_run_for_context(hfp_connection); 837 } 838 839 static void hfp_timeout_start(hfp_connection_t * hfp_connection){ 840 btstack_run_loop_remove_timer(& hfp_connection->hfp_timeout); 841 btstack_run_loop_set_timer_handler(& hfp_connection->hfp_timeout, hfp_timeout_handler); 842 btstack_run_loop_set_timer(& hfp_connection->hfp_timeout, 2000); // 2 seconds timeout 843 btstack_run_loop_add_timer(& hfp_connection->hfp_timeout); 844 } 845 846 static void hfp_timeout_stop(hfp_connection_t * hfp_connection){ 847 log_info("HFP stop ring timeout, con handle 0x%02x", hfp_connection->acl_handle); 848 btstack_run_loop_remove_timer(& hfp_connection->hfp_timeout); 849 } 850 851 // 852 // transitition implementations for hfp_ag_call_state_machine 853 // 854 855 static void hfp_ag_hf_start_ringing(hfp_connection_t * hfp_connection){ 856 if (use_in_band_tone()){ 857 hfp_connection->call_state = HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING; 858 hfp_ag_establish_audio_connection(hfp_connection->acl_handle); 859 } else { 860 hfp_timeout_start(hfp_connection); 861 hfp_connection->ag_ring = 1; 862 hfp_connection->ag_send_clip = hfp_gsm_clip_type() && hfp_connection->clip_enabled; 863 hfp_connection->call_state = HFP_CALL_RINGING; 864 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_START_RINGINIG); 865 } 866 } 867 868 static void hfp_ag_hf_stop_ringing(hfp_connection_t * hfp_connection){ 869 hfp_connection->ag_ring = 0; 870 hfp_connection->ag_send_clip = 0; 871 hfp_timeout_stop(hfp_connection); 872 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_STOP_RINGINIG); 873 } 874 875 static void hfp_ag_trigger_incoming_call(void){ 876 int indicator_index = get_ag_indicator_index_for_name("callsetup"); 877 if (indicator_index < 0) return; 878 879 btstack_linked_list_iterator_t it; 880 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 881 while (btstack_linked_list_iterator_has_next(&it)){ 882 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 883 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 884 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 885 if (hfp_connection->call_state == HFP_CALL_IDLE){ 886 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 887 hfp_ag_hf_start_ringing(hfp_connection); 888 } 889 if (hfp_connection->call_state == HFP_CALL_ACTIVE){ 890 hfp_connection->call_state = HFP_CALL_W2_SEND_CALL_WAITING; 891 } 892 hfp_run_for_context(hfp_connection); 893 } 894 } 895 896 static void hfp_ag_transfer_callsetup_state(void){ 897 int indicator_index = get_ag_indicator_index_for_name("callsetup"); 898 if (indicator_index < 0) return; 899 900 btstack_linked_list_iterator_t it; 901 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 902 while (btstack_linked_list_iterator_has_next(&it)){ 903 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 904 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 905 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 906 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 907 hfp_run_for_context(hfp_connection); 908 } 909 } 910 911 static void hfp_ag_transfer_call_state(void){ 912 int indicator_index = get_ag_indicator_index_for_name("call"); 913 if (indicator_index < 0) return; 914 915 btstack_linked_list_iterator_t it; 916 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 917 while (btstack_linked_list_iterator_has_next(&it)){ 918 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 919 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 920 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 921 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 922 hfp_run_for_context(hfp_connection); 923 } 924 } 925 926 static void hfp_ag_transfer_callheld_state(void){ 927 int indicator_index = get_ag_indicator_index_for_name("callheld"); 928 if (indicator_index < 0) return; 929 930 btstack_linked_list_iterator_t it; 931 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 932 while (btstack_linked_list_iterator_has_next(&it)){ 933 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 934 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 935 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 936 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 937 hfp_run_for_context(hfp_connection); 938 } 939 } 940 941 static void hfp_ag_hf_accept_call(hfp_connection_t * source){ 942 943 int call_indicator_index = get_ag_indicator_index_for_name("call"); 944 int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup"); 945 946 btstack_linked_list_iterator_t it; 947 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 948 while (btstack_linked_list_iterator_has_next(&it)){ 949 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 950 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 951 if (hfp_connection->call_state != HFP_CALL_RINGING && 952 hfp_connection->call_state != HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING) continue; 953 954 hfp_ag_hf_stop_ringing(hfp_connection); 955 if (hfp_connection == source){ 956 hfp_connection->ok_pending = 1; 957 958 if (use_in_band_tone()){ 959 hfp_connection->call_state = HFP_CALL_ACTIVE; 960 } else { 961 hfp_connection->call_state = HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE; 962 hfp_ag_establish_audio_connection(hfp_connection->acl_handle); 963 } 964 965 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 966 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 967 968 } else { 969 hfp_connection->call_state = HFP_CALL_IDLE; 970 } 971 hfp_run_for_context(hfp_connection); 972 } 973 } 974 975 static void hfp_ag_ag_accept_call(void){ 976 977 int call_indicator_index = get_ag_indicator_index_for_name("call"); 978 int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup"); 979 980 btstack_linked_list_iterator_t it; 981 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 982 while (btstack_linked_list_iterator_has_next(&it)){ 983 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 984 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 985 if (hfp_connection->call_state != HFP_CALL_RINGING) continue; 986 987 hfp_ag_hf_stop_ringing(hfp_connection); 988 hfp_connection->call_state = HFP_CALL_TRIGGER_AUDIO_CONNECTION; 989 990 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 991 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 992 993 hfp_run_for_context(hfp_connection); 994 break; // only single 995 } 996 } 997 998 static void hfp_ag_trigger_reject_call(void){ 999 int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup"); 1000 btstack_linked_list_iterator_t it; 1001 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1002 while (btstack_linked_list_iterator_has_next(&it)){ 1003 hfp_connection_t * connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1004 if (connection->local_role != HFP_ROLE_AG) continue; 1005 if (connection->call_state != HFP_CALL_RINGING && 1006 connection->call_state != HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING) continue; 1007 hfp_ag_hf_stop_ringing(connection); 1008 connection->ag_indicators_status_update_bitmap = store_bit(connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 1009 connection->call_state = HFP_CALL_IDLE; 1010 hfp_run_for_context(connection); 1011 } 1012 } 1013 1014 static void hfp_ag_emit_simple_event(uint8_t event_subtype){ 1015 uint8_t event[3]; 1016 event[0] = HCI_EVENT_HFP_META; 1017 event[1] = sizeof(event) - 2; 1018 event[2] = event_subtype; 1019 if (!hfp_ag_callback) return; 1020 (*hfp_ag_callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 1021 } 1022 1023 static void hfp_ag_trigger_terminate_call(void){ 1024 int call_indicator_index = get_ag_indicator_index_for_name("call"); 1025 1026 btstack_linked_list_iterator_t it; 1027 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1028 while (btstack_linked_list_iterator_has_next(&it)){ 1029 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1030 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1031 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 1032 if (hfp_connection->call_state == HFP_CALL_IDLE) continue; 1033 hfp_connection->call_state = HFP_CALL_IDLE; 1034 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 1035 hfp_connection->release_audio_connection = 1; 1036 hfp_run_for_context(hfp_connection); 1037 } 1038 hfp_ag_emit_simple_event(HFP_SUBEVENT_CALL_TERMINATED); 1039 } 1040 1041 static void hfp_ag_set_callsetup_indicator(void){ 1042 hfp_ag_indicator_t * indicator = get_ag_indicator_for_name("callsetup"); 1043 if (!indicator){ 1044 log_error("hfp_ag_set_callsetup_indicator: callsetup indicator is missing"); 1045 return; 1046 }; 1047 indicator->status = hfp_gsm_callsetup_status(); 1048 } 1049 1050 static void hfp_ag_set_callheld_indicator(void){ 1051 hfp_ag_indicator_t * indicator = get_ag_indicator_for_name("callheld"); 1052 if (!indicator){ 1053 log_error("hfp_ag_set_callheld_state: callheld indicator is missing"); 1054 return; 1055 }; 1056 indicator->status = hfp_gsm_callheld_status(); 1057 } 1058 1059 static void hfp_ag_set_call_indicator(void){ 1060 hfp_ag_indicator_t * indicator = get_ag_indicator_for_name("call"); 1061 if (!indicator){ 1062 log_error("hfp_ag_set_call_state: call indicator is missing"); 1063 return; 1064 }; 1065 indicator->status = hfp_gsm_call_status(); 1066 } 1067 1068 static void hfp_ag_stop_ringing(void){ 1069 btstack_linked_list_iterator_t it; 1070 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1071 while (btstack_linked_list_iterator_has_next(&it)){ 1072 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1073 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1074 if (hfp_connection->call_state != HFP_CALL_RINGING && 1075 hfp_connection->call_state != HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING) continue; 1076 hfp_ag_hf_stop_ringing(hfp_connection); 1077 } 1078 } 1079 1080 static hfp_connection_t * hfp_ag_connection_for_call_state(hfp_call_state_t call_state){ 1081 btstack_linked_list_iterator_t it; 1082 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1083 while (btstack_linked_list_iterator_has_next(&it)){ 1084 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1085 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1086 if (hfp_connection->call_state == call_state) return hfp_connection; 1087 } 1088 return NULL; 1089 } 1090 1091 static void hfp_ag_send_response_and_hold_state(hfp_response_and_hold_state_t state){ 1092 btstack_linked_list_iterator_t it; 1093 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1094 while (btstack_linked_list_iterator_has_next(&it)){ 1095 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1096 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1097 hfp_connection->send_response_and_hold_status = state + 1; 1098 } 1099 } 1100 1101 static int call_setup_state_machine(hfp_connection_t * hfp_connection){ 1102 int indicator_index; 1103 switch (hfp_connection->call_state){ 1104 case HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING: 1105 if (hfp_connection->state != HFP_AUDIO_CONNECTION_ESTABLISHED) return 0; 1106 // we got event: audio hfp_connection established 1107 hfp_timeout_start(hfp_connection); 1108 hfp_connection->ag_ring = 1; 1109 hfp_connection->ag_send_clip = hfp_gsm_clip_type() && hfp_connection->clip_enabled; 1110 hfp_connection->call_state = HFP_CALL_RINGING; 1111 hfp_connection->call_state = HFP_CALL_RINGING; 1112 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_START_RINGINIG); 1113 break; 1114 case HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE: 1115 if (hfp_connection->state != HFP_AUDIO_CONNECTION_ESTABLISHED) return 0; 1116 // we got event: audio hfp_connection established 1117 hfp_connection->call_state = HFP_CALL_ACTIVE; 1118 break; 1119 case HFP_CALL_W2_SEND_CALL_WAITING: 1120 hfp_connection->call_state = HFP_CALL_W4_CHLD; 1121 hfp_ag_send_call_waiting_notification(hfp_connection->rfcomm_cid); 1122 indicator_index = get_ag_indicator_index_for_name("callsetup"); 1123 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 1124 break; 1125 default: 1126 break; 1127 } 1128 return 0; 1129 } 1130 // hfp_connection is used to identify originating HF 1131 static void hfp_ag_call_sm(hfp_ag_call_event_t event, hfp_connection_t * hfp_connection){ 1132 int indicator_index; 1133 int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup"); 1134 int callheld_indicator_index = get_ag_indicator_index_for_name("callheld"); 1135 int call_indicator_index = get_ag_indicator_index_for_name("call"); 1136 1137 //printf("hfp_ag_call_sm event %d \n", event); 1138 switch (event){ 1139 case HFP_AG_INCOMING_CALL: 1140 switch (hfp_gsm_call_status()){ 1141 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1142 switch (hfp_gsm_callsetup_status()){ 1143 case HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS: 1144 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL); 1145 hfp_ag_set_callsetup_indicator(); 1146 hfp_ag_trigger_incoming_call(); 1147 log_info("AG rings"); 1148 break; 1149 default: 1150 break; 1151 } 1152 break; 1153 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1154 switch (hfp_gsm_callsetup_status()){ 1155 case HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS: 1156 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL); 1157 hfp_ag_set_callsetup_indicator(); 1158 hfp_ag_trigger_incoming_call(); 1159 log_info("AG call waiting"); 1160 break; 1161 default: 1162 break; 1163 } 1164 break; 1165 } 1166 break; 1167 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG: 1168 switch (hfp_gsm_call_status()){ 1169 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1170 switch (hfp_gsm_callsetup_status()){ 1171 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1172 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG); 1173 hfp_ag_set_call_indicator(); 1174 hfp_ag_set_callsetup_indicator(); 1175 hfp_ag_ag_accept_call(); 1176 log_info("AG answers call, accept call by GSM"); 1177 break; 1178 default: 1179 break; 1180 } 1181 break; 1182 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1183 switch (hfp_gsm_callsetup_status()){ 1184 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1185 log_info("AG: current call is placed on hold, incoming call gets active"); 1186 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG); 1187 hfp_ag_set_callsetup_indicator(); 1188 hfp_ag_set_callheld_indicator(); 1189 hfp_ag_transfer_callsetup_state(); 1190 hfp_ag_transfer_callheld_state(); 1191 break; 1192 default: 1193 break; 1194 } 1195 break; 1196 } 1197 break; 1198 1199 case HFP_AG_HELD_CALL_JOINED_BY_AG: 1200 switch (hfp_gsm_call_status()){ 1201 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1202 switch (hfp_gsm_callheld_status()){ 1203 case HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED: 1204 log_info("AG: joining held call with active call"); 1205 hfp_gsm_handle_event(HFP_AG_HELD_CALL_JOINED_BY_AG); 1206 hfp_ag_set_callheld_indicator(); 1207 hfp_ag_transfer_callheld_state(); 1208 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CONFERENCE_CALL); 1209 break; 1210 default: 1211 break; 1212 } 1213 break; 1214 default: 1215 break; 1216 } 1217 break; 1218 1219 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF: 1220 switch (hfp_gsm_call_status()){ 1221 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1222 switch (hfp_gsm_callsetup_status()){ 1223 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1224 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF); 1225 hfp_ag_set_callsetup_indicator(); 1226 hfp_ag_set_call_indicator(); 1227 hfp_ag_hf_accept_call(hfp_connection); 1228 log_info("HF answers call, accept call by GSM"); 1229 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CALL_ANSWERED); 1230 break; 1231 default: 1232 break; 1233 } 1234 break; 1235 default: 1236 break; 1237 } 1238 break; 1239 1240 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG: 1241 switch (hfp_gsm_call_status()){ 1242 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1243 switch (hfp_gsm_callsetup_status()){ 1244 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1245 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG); 1246 hfp_ag_response_and_hold_active = 1; 1247 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD; 1248 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1249 // as with regualr call 1250 hfp_ag_set_call_indicator(); 1251 hfp_ag_set_callsetup_indicator(); 1252 hfp_ag_ag_accept_call(); 1253 log_info("AG response and hold - hold by AG"); 1254 break; 1255 default: 1256 break; 1257 } 1258 break; 1259 default: 1260 break; 1261 } 1262 break; 1263 1264 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF: 1265 switch (hfp_gsm_call_status()){ 1266 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1267 switch (hfp_gsm_callsetup_status()){ 1268 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1269 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF); 1270 hfp_ag_response_and_hold_active = 1; 1271 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD; 1272 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1273 // as with regualr call 1274 hfp_ag_set_call_indicator(); 1275 hfp_ag_set_callsetup_indicator(); 1276 hfp_ag_hf_accept_call(hfp_connection); 1277 log_info("AG response and hold - hold by HF"); 1278 break; 1279 default: 1280 break; 1281 } 1282 break; 1283 default: 1284 break; 1285 } 1286 break; 1287 1288 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG: 1289 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF: 1290 if (!hfp_ag_response_and_hold_active) break; 1291 if (hfp_ag_response_and_hold_state != HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD) break; 1292 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG); 1293 hfp_ag_response_and_hold_active = 0; 1294 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_HELD_INCOMING_ACCEPTED; 1295 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1296 log_info("Held Call accepted and active"); 1297 break; 1298 1299 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG: 1300 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF: 1301 if (!hfp_ag_response_and_hold_active) break; 1302 if (hfp_ag_response_and_hold_state != HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD) break; 1303 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG); 1304 hfp_ag_response_and_hold_active = 0; 1305 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED; 1306 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1307 // from terminate by ag 1308 hfp_ag_set_call_indicator(); 1309 hfp_ag_trigger_terminate_call(); 1310 break; 1311 1312 case HFP_AG_TERMINATE_CALL_BY_HF: 1313 switch (hfp_gsm_call_status()){ 1314 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1315 switch (hfp_gsm_callsetup_status()){ 1316 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1317 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_HF); 1318 hfp_ag_set_callsetup_indicator(); 1319 hfp_ag_transfer_callsetup_state(); 1320 hfp_ag_trigger_reject_call(); 1321 log_info("HF Rejected Incoming call, AG terminate call"); 1322 break; 1323 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE: 1324 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE: 1325 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_HF); 1326 hfp_ag_set_callsetup_indicator(); 1327 hfp_ag_transfer_callsetup_state(); 1328 log_info("AG terminate outgoing call process"); 1329 break; 1330 default: 1331 break; 1332 } 1333 break; 1334 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1335 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_HF); 1336 hfp_ag_set_call_indicator(); 1337 hfp_ag_transfer_call_state(); 1338 hfp_connection->call_state = HFP_CALL_IDLE; 1339 log_info("AG terminate call"); 1340 break; 1341 } 1342 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CALL_TERMINATED); 1343 break; 1344 1345 case HFP_AG_TERMINATE_CALL_BY_AG: 1346 switch (hfp_gsm_call_status()){ 1347 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1348 switch (hfp_gsm_callsetup_status()){ 1349 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1350 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_AG); 1351 hfp_ag_set_callsetup_indicator(); 1352 hfp_ag_trigger_reject_call(); 1353 log_info("AG Rejected Incoming call, AG terminate call"); 1354 break; 1355 default: 1356 break; 1357 } 1358 break; 1359 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1360 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_AG); 1361 hfp_ag_set_callsetup_indicator(); 1362 hfp_ag_set_call_indicator(); 1363 hfp_ag_trigger_terminate_call(); 1364 log_info("AG terminate call"); 1365 break; 1366 default: 1367 break; 1368 } 1369 break; 1370 case HFP_AG_CALL_DROPPED: 1371 switch (hfp_gsm_call_status()){ 1372 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1373 switch (hfp_gsm_callsetup_status()){ 1374 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1375 hfp_ag_stop_ringing(); 1376 log_info("Incoming call interrupted"); 1377 break; 1378 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE: 1379 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE: 1380 log_info("Outgoing call interrupted\n"); 1381 log_info("AG notify call dropped\n"); 1382 break; 1383 default: 1384 break; 1385 } 1386 hfp_gsm_handle_event(HFP_AG_CALL_DROPPED); 1387 hfp_ag_set_callsetup_indicator(); 1388 hfp_ag_transfer_callsetup_state(); 1389 break; 1390 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1391 if (hfp_ag_response_and_hold_active) { 1392 hfp_gsm_handle_event(HFP_AG_CALL_DROPPED); 1393 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED; 1394 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1395 } 1396 hfp_gsm_handle_event(HFP_AG_CALL_DROPPED); 1397 hfp_ag_set_callsetup_indicator(); 1398 hfp_ag_set_call_indicator(); 1399 hfp_ag_trigger_terminate_call(); 1400 log_info("AG notify call dropped"); 1401 break; 1402 default: 1403 break; 1404 } 1405 break; 1406 1407 case HFP_AG_OUTGOING_CALL_INITIATED: 1408 // directly reject call if number of free slots is exceeded 1409 if (!hfp_gsm_call_possible()){ 1410 hfp_connection->send_error = 1; 1411 hfp_run_for_context(hfp_connection); 1412 break; 1413 } 1414 hfp_gsm_handle_event_with_call_number(HFP_AG_OUTGOING_CALL_INITIATED, (const char *) &hfp_connection->line_buffer[3]); 1415 1416 hfp_connection->call_state = HFP_CALL_OUTGOING_INITIATED; 1417 1418 hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER, (const char *) &hfp_connection->line_buffer[3]); 1419 break; 1420 1421 case HFP_AG_OUTGOING_REDIAL_INITIATED:{ 1422 // directly reject call if number of free slots is exceeded 1423 if (!hfp_gsm_call_possible()){ 1424 hfp_connection->send_error = 1; 1425 hfp_run_for_context(hfp_connection); 1426 break; 1427 } 1428 1429 hfp_gsm_handle_event(HFP_AG_OUTGOING_REDIAL_INITIATED); 1430 hfp_connection->call_state = HFP_CALL_OUTGOING_INITIATED; 1431 1432 log_info("Redial last number"); 1433 char * last_dialed_number = hfp_gsm_last_dialed_number(); 1434 1435 if (strlen(last_dialed_number) > 0){ 1436 log_info("Last number exists: accept call"); 1437 hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER, last_dialed_number); 1438 } else { 1439 log_info("log_infoLast number missing: reject call"); 1440 hfp_ag_outgoing_call_rejected(); 1441 } 1442 break; 1443 } 1444 case HFP_AG_OUTGOING_CALL_REJECTED: 1445 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_INITIATED); 1446 if (!hfp_connection){ 1447 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection in initiated state"); 1448 break; 1449 } 1450 1451 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_REJECTED); 1452 hfp_connection->call_state = HFP_CALL_IDLE; 1453 hfp_connection->send_error = 1; 1454 hfp_run_for_context(hfp_connection); 1455 break; 1456 1457 case HFP_AG_OUTGOING_CALL_ACCEPTED:{ 1458 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_INITIATED); 1459 if (!hfp_connection){ 1460 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection in initiated state"); 1461 break; 1462 } 1463 1464 hfp_connection->ok_pending = 1; 1465 hfp_connection->call_state = HFP_CALL_OUTGOING_DIALING; 1466 1467 // trigger callsetup to be 1468 int put_call_on_hold = hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT; 1469 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_ACCEPTED); 1470 1471 hfp_ag_set_callsetup_indicator(); 1472 indicator_index = get_ag_indicator_index_for_name("callsetup"); 1473 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 1474 1475 // put current call on hold if active 1476 if (put_call_on_hold){ 1477 log_info("AG putting current call on hold for new outgoing calllog_info"); 1478 hfp_ag_set_callheld_indicator(); 1479 indicator_index = get_ag_indicator_index_for_name("callheld"); 1480 hfp_ag_send_transfer_ag_indicators_status_cmd(hfp_connection->rfcomm_cid, &hfp_ag_indicators[indicator_index]); 1481 } 1482 1483 // start audio if needed 1484 hfp_ag_establish_audio_connection(hfp_connection->acl_handle); 1485 break; 1486 } 1487 case HFP_AG_OUTGOING_CALL_RINGING: 1488 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_DIALING); 1489 if (!hfp_connection){ 1490 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection in dialing state"); 1491 break; 1492 } 1493 1494 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_RINGING); 1495 hfp_connection->call_state = HFP_CALL_OUTGOING_RINGING; 1496 hfp_ag_set_callsetup_indicator(); 1497 hfp_ag_transfer_callsetup_state(); 1498 break; 1499 1500 case HFP_AG_OUTGOING_CALL_ESTABLISHED:{ 1501 // get outgoing call 1502 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_RINGING); 1503 if (!hfp_connection){ 1504 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_DIALING); 1505 } 1506 if (!hfp_connection){ 1507 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection"); 1508 break; 1509 } 1510 1511 int CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS = hfp_gsm_callheld_status() == HFP_CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS; 1512 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_ESTABLISHED); 1513 hfp_connection->call_state = HFP_CALL_ACTIVE; 1514 hfp_ag_set_callsetup_indicator(); 1515 hfp_ag_set_call_indicator(); 1516 hfp_ag_transfer_call_state(); 1517 hfp_ag_transfer_callsetup_state(); 1518 if (CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS){ 1519 hfp_ag_set_callheld_indicator(); 1520 hfp_ag_transfer_callheld_state(); 1521 } 1522 break; 1523 } 1524 1525 case HFP_AG_CALL_HOLD_USER_BUSY: 1526 hfp_gsm_handle_event(HFP_AG_CALL_HOLD_USER_BUSY); 1527 hfp_ag_set_callsetup_indicator(); 1528 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 1529 hfp_connection->call_state = HFP_CALL_ACTIVE; 1530 log_info("AG: Call Waiting, User Busy"); 1531 break; 1532 1533 case HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL:{ 1534 int call_setup_in_progress = hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS; 1535 int call_held = hfp_gsm_callheld_status() != HFP_CALLHELD_STATUS_NO_CALLS_HELD; 1536 1537 // Releases all active calls (if any exist) and accepts the other (held or waiting) call. 1538 if (call_held || call_setup_in_progress){ 1539 hfp_gsm_handle_event_with_call_index(HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection->call_index); 1540 1541 } 1542 1543 if (call_setup_in_progress){ 1544 log_info("AG: Call Dropped, Accept new call"); 1545 hfp_ag_set_callsetup_indicator(); 1546 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 1547 } else { 1548 log_info("AG: Call Dropped, Resume held call"); 1549 } 1550 if (call_held){ 1551 hfp_ag_set_callheld_indicator(); 1552 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1553 } 1554 1555 hfp_connection->call_state = HFP_CALL_ACTIVE; 1556 break; 1557 } 1558 1559 case HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL:{ 1560 // Places all active calls (if any exist) on hold and accepts the other (held or waiting) call. 1561 // only update if callsetup changed 1562 int call_setup_in_progress = hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS; 1563 hfp_gsm_handle_event_with_call_index(HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection->call_index); 1564 1565 if (call_setup_in_progress){ 1566 log_info("AG: Call on Hold, Accept new call"); 1567 hfp_ag_set_callsetup_indicator(); 1568 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 1569 } else { 1570 log_info("AG: Swap calls"); 1571 } 1572 1573 hfp_ag_set_callheld_indicator(); 1574 // hfp_ag_set_callheld_state(HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED); 1575 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1576 hfp_connection->call_state = HFP_CALL_ACTIVE; 1577 break; 1578 } 1579 1580 case HFP_AG_CALL_HOLD_ADD_HELD_CALL: 1581 // Adds a held call to the conversation. 1582 if (hfp_gsm_callheld_status() != HFP_CALLHELD_STATUS_NO_CALLS_HELD){ 1583 log_info("AG: Join 3-way-call"); 1584 hfp_gsm_handle_event(HFP_AG_CALL_HOLD_ADD_HELD_CALL); 1585 hfp_ag_set_callheld_indicator(); 1586 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1587 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CONFERENCE_CALL); 1588 } 1589 hfp_connection->call_state = HFP_CALL_ACTIVE; 1590 break; 1591 case HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS: 1592 // Connects the two calls and disconnects the subscriber from both calls (Explicit Call Transfer) 1593 hfp_gsm_handle_event(HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS); 1594 log_info("AG: Transfer call -> Connect two calls and disconnect"); 1595 hfp_ag_set_call_indicator(); 1596 hfp_ag_set_callheld_indicator(); 1597 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 1598 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1599 hfp_connection->call_state = HFP_CALL_IDLE; 1600 break; 1601 1602 default: 1603 break; 1604 } 1605 1606 1607 } 1608 1609 1610 static void hfp_ag_send_call_status(hfp_connection_t * hfp_connection, int call_index){ 1611 hfp_gsm_call_t * active_call = hfp_gsm_call(call_index); 1612 if (!active_call) return; 1613 1614 int idx = active_call->index; 1615 hfp_enhanced_call_dir_t dir = active_call->direction; 1616 hfp_enhanced_call_status_t status = active_call->enhanced_status; 1617 hfp_enhanced_call_mode_t mode = active_call->mode; 1618 hfp_enhanced_call_mpty_t mpty = active_call->mpty; 1619 uint8_t type = active_call->clip_type; 1620 char * number = active_call->clip_number; 1621 1622 char buffer[100]; 1623 // TODO: check length of a buffer, to fit the MTU 1624 int offset = snprintf(buffer, sizeof(buffer), "\r\n%s: %d,%d,%d,%d,%d", HFP_LIST_CURRENT_CALLS, idx, dir, status, mode, mpty); 1625 if (number){ 1626 offset += snprintf(buffer+offset, sizeof(buffer)-offset-3, ", \"%s\",%u", number, type); 1627 } 1628 snprintf(buffer+offset, sizeof(buffer)-offset, "\r\n"); 1629 log_info("hfp_ag_send_current_call_status 000 index %d, dir %d, status %d, mode %d, mpty %d, type %d, number %s", idx, dir, status, 1630 mode, mpty, type, number); 1631 send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer); 1632 } 1633 1634 static void hfp_run_for_context(hfp_connection_t *hfp_connection){ 1635 if (!hfp_connection) return; 1636 if (!hfp_connection->rfcomm_cid) return; 1637 1638 if (hfp_connection->local_role != HFP_ROLE_AG) { 1639 log_info("HFP AG%p, wrong role %u", hfp_connection, hfp_connection->local_role); 1640 return; 1641 } 1642 1643 if (!rfcomm_can_send_packet_now(hfp_connection->rfcomm_cid)) { 1644 log_info("hfp_run_for_context: request can send for 0x%02x", hfp_connection->rfcomm_cid); 1645 rfcomm_request_can_send_now_event(hfp_connection->rfcomm_cid); 1646 return; 1647 } 1648 if (hfp_connection->send_status_of_current_calls){ 1649 hfp_connection->ok_pending = 0; 1650 if (hfp_connection->next_call_index < hfp_gsm_get_number_of_calls()){ 1651 hfp_connection->next_call_index++; 1652 hfp_ag_send_call_status(hfp_connection, hfp_connection->next_call_index); 1653 } else { 1654 hfp_connection->next_call_index = 0; 1655 hfp_connection->ok_pending = 1; 1656 hfp_connection->send_status_of_current_calls = 0; 1657 } 1658 return; 1659 } 1660 1661 if (hfp_connection->ag_notify_incoming_call_waiting){ 1662 hfp_connection->ag_notify_incoming_call_waiting = 0; 1663 hfp_ag_send_call_waiting_notification(hfp_connection->rfcomm_cid); 1664 return; 1665 } 1666 1667 if (hfp_connection->command == HFP_CMD_UNKNOWN){ 1668 hfp_connection->ok_pending = 0; 1669 hfp_connection->send_error = 0; 1670 hfp_connection->command = HFP_CMD_NONE; 1671 hfp_ag_send_error(hfp_connection->rfcomm_cid); 1672 return; 1673 } 1674 1675 if (hfp_connection->send_error){ 1676 hfp_connection->send_error = 0; 1677 hfp_connection->command = HFP_CMD_NONE; 1678 hfp_ag_send_error(hfp_connection->rfcomm_cid); 1679 return; 1680 } 1681 1682 // note: before update AG indicators and ok_pending 1683 if (hfp_connection->send_response_and_hold_status){ 1684 int status = hfp_connection->send_response_and_hold_status - 1; 1685 hfp_connection->send_response_and_hold_status = 0; 1686 hfp_ag_send_set_response_and_hold(hfp_connection->rfcomm_cid, status); 1687 return; 1688 } 1689 1690 if (hfp_connection->ok_pending){ 1691 hfp_connection->ok_pending = 0; 1692 hfp_connection->command = HFP_CMD_NONE; 1693 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 1694 return; 1695 } 1696 1697 // update AG indicators 1698 if (hfp_connection->ag_indicators_status_update_bitmap){ 1699 int i; 1700 for (i=0;i<hfp_connection->ag_indicators_nr;i++){ 1701 if (get_bit(hfp_connection->ag_indicators_status_update_bitmap, i)){ 1702 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, i, 0); 1703 if (!hfp_connection->enable_status_update_for_ag_indicators) { 1704 log_info("+CMER:3,0,0,0 - not sending update for '%s'", hfp_ag_indicators[i].name); 1705 break; 1706 } 1707 hfp_ag_send_transfer_ag_indicators_status_cmd(hfp_connection->rfcomm_cid, &hfp_ag_indicators[i]); 1708 return; 1709 } 1710 } 1711 } 1712 1713 if (hfp_connection->ag_ring){ 1714 hfp_connection->ag_ring = 0; 1715 hfp_connection->command = HFP_CMD_NONE; 1716 hfp_ag_send_ring(hfp_connection->rfcomm_cid); 1717 return; 1718 } 1719 1720 if (hfp_connection->ag_send_clip){ 1721 hfp_connection->ag_send_clip = 0; 1722 hfp_connection->command = HFP_CMD_NONE; 1723 hfp_ag_send_clip(hfp_connection->rfcomm_cid); 1724 return; 1725 } 1726 1727 if (hfp_connection->send_phone_number_for_voice_tag){ 1728 hfp_connection->send_phone_number_for_voice_tag = 0; 1729 hfp_connection->command = HFP_CMD_NONE; 1730 hfp_connection->ok_pending = 1; 1731 hfp_ag_send_phone_number_for_voice_tag_cmd(hfp_connection->rfcomm_cid); 1732 return; 1733 } 1734 1735 if (hfp_connection->send_subscriber_number){ 1736 if (hfp_connection->next_subscriber_number_to_send < subscriber_numbers_count){ 1737 hfp_phone_number_t phone = subscriber_numbers[hfp_connection->next_subscriber_number_to_send++]; 1738 hfp_send_subscriber_number_cmd(hfp_connection->rfcomm_cid, phone.type, phone.number); 1739 } else { 1740 hfp_connection->send_subscriber_number = 0; 1741 hfp_connection->next_subscriber_number_to_send = 0; 1742 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 1743 } 1744 hfp_connection->command = HFP_CMD_NONE; 1745 1746 } 1747 1748 if (hfp_connection->send_microphone_gain){ 1749 hfp_connection->send_microphone_gain = 0; 1750 hfp_connection->command = HFP_CMD_NONE; 1751 hfp_ag_send_set_microphone_gain_cmd(hfp_connection->rfcomm_cid, hfp_connection->microphone_gain); 1752 return; 1753 } 1754 1755 if (hfp_connection->send_speaker_gain){ 1756 hfp_connection->send_speaker_gain = 0; 1757 hfp_connection->command = HFP_CMD_NONE; 1758 hfp_ag_send_set_speaker_gain_cmd(hfp_connection->rfcomm_cid, hfp_connection->speaker_gain); 1759 return; 1760 } 1761 1762 if (hfp_connection->send_ag_status_indicators){ 1763 hfp_connection->send_ag_status_indicators = 0; 1764 hfp_ag_send_retrieve_indicators_status_cmd(hfp_connection->rfcomm_cid); 1765 return; 1766 } 1767 1768 // trigger codec exchange if requested by app 1769 if (hfp_connection->trigger_codec_exchange){ 1770 log_info("trigger codec, command %u, codec state %u", hfp_connection->command, hfp_connection->codecs_state); 1771 } 1772 if (hfp_connection->trigger_codec_exchange && hfp_connection->command == HFP_CMD_NONE){ 1773 switch (hfp_connection->codecs_state){ 1774 case HFP_CODECS_IDLE: 1775 case HFP_CODECS_RECEIVED_LIST: 1776 case HFP_CODECS_AG_RESEND_COMMON_CODEC: 1777 case HFP_CODECS_ERROR: 1778 hfp_connection->trigger_codec_exchange = 0; 1779 hfp_connection->command = HFP_CMD_AG_SEND_COMMON_CODEC; 1780 break; 1781 default: 1782 break; 1783 } 1784 } 1785 1786 int cmd_sent = hfp_ag_run_for_context_service_level_connection(hfp_connection); 1787 if (!cmd_sent){ 1788 cmd_sent = hfp_ag_run_for_context_service_level_connection_queries(hfp_connection); 1789 } 1790 1791 if (!cmd_sent){ 1792 cmd_sent = call_setup_state_machine(hfp_connection); 1793 } 1794 1795 if (!cmd_sent){ 1796 cmd_sent = hfp_ag_run_for_audio_connection(hfp_connection); 1797 } 1798 1799 if (hfp_connection->command == HFP_CMD_NONE && !cmd_sent){ 1800 // log_info("hfp_connection->command == HFP_CMD_NONE"); 1801 switch(hfp_connection->state){ 1802 case HFP_W2_DISCONNECT_RFCOMM: 1803 hfp_connection->state = HFP_W4_RFCOMM_DISCONNECTED; 1804 rfcomm_disconnect(hfp_connection->rfcomm_cid); 1805 break; 1806 default: 1807 break; 1808 } 1809 } 1810 1811 if (cmd_sent){ 1812 hfp_connection->command = HFP_CMD_NONE; 1813 rfcomm_request_can_send_now_event(hfp_connection->rfcomm_cid); 1814 } 1815 } 1816 1817 static hfp_generic_status_indicator_t *get_hf_indicator_by_number(int number){ 1818 int i; 1819 for (i=0;i< hfp_generic_status_indicators_nr;i++){ 1820 hfp_generic_status_indicator_t * indicator = &hfp_generic_status_indicators[i]; 1821 if (indicator->uuid == number){ 1822 return indicator; 1823 } 1824 } 1825 return NULL; 1826 } 1827 1828 static void hfp_ag_handle_rfcomm_data(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 1829 UNUSED(packet_type); // ok: only called with RFCOMM_DATA_PACKET 1830 1831 // assertion: size >= 1 as rfcomm.c does not deliver empty packets 1832 if (size < 1) return; 1833 1834 hfp_connection_t * hfp_connection = get_hfp_connection_context_for_rfcomm_cid(channel); 1835 if (!hfp_connection) return; 1836 1837 hfp_log_rfcomm_message("HFP_AG_RX", packet, size); 1838 1839 // process messages byte-wise 1840 int pos; 1841 for (pos = 0; pos < size ; pos++){ 1842 hfp_parse(hfp_connection, packet[pos], 0); 1843 } 1844 1845 int value; 1846 hfp_generic_status_indicator_t * indicator; 1847 switch(hfp_connection->command){ 1848 case HFP_CMD_RESPONSE_AND_HOLD_QUERY: 1849 if (hfp_ag_response_and_hold_active){ 1850 hfp_connection->send_response_and_hold_status = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD + 1; 1851 } 1852 hfp_connection->ok_pending = 1; 1853 break; 1854 case HFP_CMD_RESPONSE_AND_HOLD_COMMAND: 1855 value = btstack_atoi((char *)&hfp_connection->line_buffer[0]); 1856 log_info("HF Response and Hold: %u", value); 1857 switch(value){ 1858 case HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD: 1859 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF, hfp_connection); 1860 break; 1861 case HFP_RESPONSE_AND_HOLD_HELD_INCOMING_ACCEPTED: 1862 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF, hfp_connection); 1863 break; 1864 case HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED: 1865 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF, hfp_connection); 1866 break; 1867 default: 1868 break; 1869 } 1870 hfp_connection->ok_pending = 1; 1871 break; 1872 case HFP_CMD_HF_INDICATOR_STATUS: 1873 hfp_connection->command = HFP_CMD_NONE; 1874 // find indicator by assigned number 1875 indicator = get_hf_indicator_by_number(hfp_connection->parser_indicator_index); 1876 if (!indicator){ 1877 hfp_connection->send_error = 1; 1878 break; 1879 } 1880 value = btstack_atoi((char *)&hfp_connection->line_buffer[0]); 1881 switch (indicator->uuid){ 1882 case 1: // enhanced security 1883 if (value > 1) { 1884 hfp_connection->send_error = 1; 1885 return; 1886 } 1887 log_info("HF Indicator 'enhanced security' set to %u", value); 1888 break; 1889 case 2: // battery level 1890 if (value > 100){ 1891 hfp_connection->send_error = 1; 1892 return; 1893 } 1894 log_info("HF Indicator 'battery' set to %u", value); 1895 break; 1896 default: 1897 log_info("HF Indicator unknown set to %u", value); 1898 break; 1899 } 1900 hfp_connection->ok_pending = 1; 1901 break; 1902 case HFP_CMD_RETRIEVE_AG_INDICATORS_STATUS: 1903 // expected by SLC state machine 1904 if (hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) break; 1905 hfp_connection->send_ag_indicators_segment = 0; 1906 hfp_connection->send_ag_status_indicators = 1; 1907 break; 1908 case HFP_CMD_LIST_CURRENT_CALLS: 1909 hfp_connection->command = HFP_CMD_NONE; 1910 hfp_connection->next_call_index = 0; 1911 hfp_connection->send_status_of_current_calls = 1; 1912 break; 1913 case HFP_CMD_GET_SUBSCRIBER_NUMBER_INFORMATION: 1914 if (subscriber_numbers_count == 0){ 1915 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 1916 break; 1917 } 1918 hfp_connection->next_subscriber_number_to_send = 0; 1919 hfp_connection->send_subscriber_number = 1; 1920 break; 1921 case HFP_CMD_TRANSMIT_DTMF_CODES: 1922 hfp_connection->command = HFP_CMD_NONE; 1923 hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_TRANSMIT_DTMF_CODES, (const char *) &hfp_connection->line_buffer[0]); 1924 break; 1925 case HFP_CMD_HF_REQUEST_PHONE_NUMBER: 1926 hfp_connection->command = HFP_CMD_NONE; 1927 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_ATTACH_NUMBER_TO_VOICE_TAG); 1928 break; 1929 case HFP_CMD_TURN_OFF_EC_AND_NR: 1930 hfp_connection->command = HFP_CMD_NONE; 1931 if (get_bit(hfp_supported_features, HFP_AGSF_EC_NR_FUNCTION)){ 1932 hfp_connection->ok_pending = 1; 1933 hfp_supported_features = store_bit(hfp_supported_features, HFP_AGSF_EC_NR_FUNCTION, hfp_connection->ag_echo_and_noise_reduction); 1934 log_info("AG: EC/NR = %u", hfp_connection->ag_echo_and_noise_reduction); 1935 } else { 1936 hfp_connection->send_error = 1; 1937 } 1938 break; 1939 case HFP_CMD_CALL_ANSWERED: 1940 hfp_connection->command = HFP_CMD_NONE; 1941 log_info("HFP: ATA"); 1942 hfp_ag_call_sm(HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF, hfp_connection); 1943 break; 1944 case HFP_CMD_HANG_UP_CALL: 1945 hfp_connection->command = HFP_CMD_NONE; 1946 hfp_connection->ok_pending = 1; 1947 hfp_ag_call_sm(HFP_AG_TERMINATE_CALL_BY_HF, hfp_connection); 1948 break; 1949 case HFP_CMD_CALL_HOLD: { 1950 // TODO: fully implement this 1951 log_error("HFP: unhandled call hold type %c", hfp_connection->line_buffer[0]); 1952 hfp_connection->command = HFP_CMD_NONE; 1953 hfp_connection->ok_pending = 1; 1954 hfp_connection->call_index = 0; 1955 1956 if (hfp_connection->line_buffer[1] != '\0'){ 1957 hfp_connection->call_index = btstack_atoi((char *)&hfp_connection->line_buffer[1]); 1958 } 1959 1960 switch (hfp_connection->line_buffer[0]){ 1961 case '0': 1962 // Releases all held calls or sets User Determined User Busy (UDUB) for a waiting call. 1963 hfp_ag_call_sm(HFP_AG_CALL_HOLD_USER_BUSY, hfp_connection); 1964 break; 1965 case '1': 1966 // Releases all active calls (if any exist) and accepts the other (held or waiting) call. 1967 // Where both a held and a waiting call exist, the above procedures shall apply to the 1968 // waiting call (i.e., not to the held call) in conflicting situation. 1969 hfp_ag_call_sm(HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection); 1970 break; 1971 case '2': 1972 // Places all active calls (if any exist) on hold and accepts the other (held or waiting) call. 1973 // Where both a held and a waiting call exist, the above procedures shall apply to the 1974 // waiting call (i.e., not to the held call) in conflicting situation. 1975 hfp_ag_call_sm(HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection); 1976 break; 1977 case '3': 1978 // Adds a held call to the conversation. 1979 hfp_ag_call_sm(HFP_AG_CALL_HOLD_ADD_HELD_CALL, hfp_connection); 1980 break; 1981 case '4': 1982 // Connects the two calls and disconnects the subscriber from both calls (Explicit Call Transfer). 1983 hfp_ag_call_sm(HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS, hfp_connection); 1984 break; 1985 default: 1986 break; 1987 } 1988 break; 1989 } 1990 case HFP_CMD_CALL_PHONE_NUMBER: 1991 hfp_connection->command = HFP_CMD_NONE; 1992 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_INITIATED, hfp_connection); 1993 break; 1994 case HFP_CMD_REDIAL_LAST_NUMBER: 1995 hfp_connection->command = HFP_CMD_NONE; 1996 hfp_ag_call_sm(HFP_AG_OUTGOING_REDIAL_INITIATED, hfp_connection); 1997 break; 1998 case HFP_CMD_ENABLE_CLIP: 1999 hfp_connection->command = HFP_CMD_NONE; 2000 hfp_connection->clip_enabled = hfp_connection->line_buffer[8] != '0'; 2001 log_info("hfp: clip set, now: %u", hfp_connection->clip_enabled); 2002 hfp_connection->ok_pending = 1; 2003 break; 2004 case HFP_CMD_ENABLE_CALL_WAITING_NOTIFICATION: 2005 hfp_connection->command = HFP_CMD_NONE; 2006 hfp_connection->call_waiting_notification_enabled = hfp_connection->line_buffer[8] != '0'; 2007 log_info("hfp: call waiting notification set, now: %u", hfp_connection->call_waiting_notification_enabled); 2008 hfp_connection->ok_pending = 1; 2009 break; 2010 case HFP_CMD_SET_SPEAKER_GAIN: 2011 hfp_connection->command = HFP_CMD_NONE; 2012 hfp_connection->ok_pending = 1; 2013 log_info("HF speaker gain = %u", hfp_connection->speaker_gain); 2014 break; 2015 case HFP_CMD_SET_MICROPHONE_GAIN: 2016 hfp_connection->command = HFP_CMD_NONE; 2017 hfp_connection->ok_pending = 1; 2018 log_info("HF microphone gain = %u", hfp_connection->microphone_gain); 2019 break; 2020 default: 2021 break; 2022 } 2023 } 2024 2025 static void hfp_run(void){ 2026 btstack_linked_list_iterator_t it; 2027 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 2028 while (btstack_linked_list_iterator_has_next(&it)){ 2029 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 2030 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 2031 hfp_run_for_context(hfp_connection); 2032 } 2033 } 2034 2035 static void rfcomm_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 2036 switch (packet_type){ 2037 case RFCOMM_DATA_PACKET: 2038 hfp_ag_handle_rfcomm_data(packet_type, channel, packet, size); 2039 break; 2040 case HCI_EVENT_PACKET: 2041 if (packet[0] == RFCOMM_EVENT_CAN_SEND_NOW){ 2042 uint16_t rfcomm_cid = rfcomm_event_can_send_now_get_rfcomm_cid(packet); 2043 hfp_run_for_context(get_hfp_connection_context_for_rfcomm_cid(rfcomm_cid)); 2044 return; 2045 } 2046 hfp_handle_rfcomm_event(packet_type, channel, packet, size, HFP_ROLE_AG); 2047 break; 2048 default: 2049 break; 2050 } 2051 2052 hfp_run(); 2053 } 2054 2055 void hfp_ag_init_codecs(int codecs_nr, uint8_t * codecs){ 2056 if (codecs_nr > HFP_MAX_NUM_CODECS){ 2057 log_error("hfp_init: codecs_nr (%d) > HFP_MAX_NUM_CODECS (%d)", codecs_nr, HFP_MAX_NUM_CODECS); 2058 return; 2059 } 2060 int i; 2061 hfp_codecs_nr = codecs_nr; 2062 for (i=0; i < codecs_nr; i++){ 2063 hfp_codecs[i] = codecs[i]; 2064 } 2065 } 2066 2067 void hfp_ag_init_supported_features(uint32_t supported_features){ 2068 hfp_supported_features = supported_features; 2069 } 2070 2071 void hfp_ag_init_ag_indicators(int ag_indicators_nr, hfp_ag_indicator_t * ag_indicators){ 2072 hfp_ag_indicators_nr = ag_indicators_nr; 2073 memcpy(hfp_ag_indicators, ag_indicators, ag_indicators_nr * sizeof(hfp_ag_indicator_t)); 2074 } 2075 2076 void hfp_ag_init_hf_indicators(int hf_indicators_nr, hfp_generic_status_indicator_t * hf_indicators){ 2077 if (hf_indicators_nr > HFP_MAX_NUM_HF_INDICATORS) return; 2078 hfp_generic_status_indicators_nr = hf_indicators_nr; 2079 memcpy(hfp_generic_status_indicators, hf_indicators, hf_indicators_nr * sizeof(hfp_generic_status_indicator_t)); 2080 } 2081 2082 void hfp_ag_init_call_hold_services(int call_hold_services_nr, const char * call_hold_services[]){ 2083 hfp_ag_call_hold_services_nr = call_hold_services_nr; 2084 memcpy(hfp_ag_call_hold_services, call_hold_services, call_hold_services_nr * sizeof(char *)); 2085 } 2086 2087 2088 void hfp_ag_init(uint16_t rfcomm_channel_nr){ 2089 2090 hfp_init(); 2091 2092 hci_event_callback_registration.callback = &hfp_handle_hci_event; 2093 hci_add_event_handler(&hci_event_callback_registration); 2094 2095 rfcomm_register_service(&rfcomm_packet_handler, rfcomm_channel_nr, 0xffff); 2096 2097 // used to set packet handler for outgoing rfcomm connections - could be handled by emitting an event to us 2098 hfp_set_ag_rfcomm_packet_handler(&rfcomm_packet_handler); 2099 2100 hfp_ag_response_and_hold_active = 0; 2101 subscriber_numbers = NULL; 2102 subscriber_numbers_count = 0; 2103 2104 hfp_gsm_init(); 2105 } 2106 2107 void hfp_ag_establish_service_level_connection(bd_addr_t bd_addr){ 2108 hfp_establish_service_level_connection(bd_addr, BLUETOOTH_SERVICE_CLASS_HANDSFREE, HFP_ROLE_AG); 2109 } 2110 2111 void hfp_ag_release_service_level_connection(hci_con_handle_t acl_handle){ 2112 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2113 if (!hfp_connection){ 2114 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2115 return; 2116 } 2117 hfp_release_service_level_connection(hfp_connection); 2118 hfp_run_for_context(hfp_connection); 2119 } 2120 2121 void hfp_ag_report_extended_audio_gateway_error_result_code(hci_con_handle_t acl_handle, hfp_cme_error_t error){ 2122 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2123 if (!hfp_connection){ 2124 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2125 return; 2126 } 2127 hfp_connection->extended_audio_gateway_error = 0; 2128 if (!hfp_connection->enable_extended_audio_gateway_error_report){ 2129 return; 2130 } 2131 hfp_connection->extended_audio_gateway_error = error; 2132 hfp_run_for_context(hfp_connection); 2133 } 2134 2135 static void hfp_ag_setup_audio_connection(hfp_connection_t * hfp_connection){ 2136 log_info("hfp_ag_setup_audio_connection state %u", hfp_connection->state); 2137 if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED) return; 2138 if (hfp_connection->state >= HFP_W2_DISCONNECT_SCO) return; 2139 2140 hfp_connection->establish_audio_connection = 1; 2141 if (!has_codec_negotiation_feature(hfp_connection)){ 2142 log_info("hfp_ag_establish_audio_connection - no codec negotiation feature, using CVSD"); 2143 hfp_connection->negotiated_codec = HFP_CODEC_CVSD; 2144 hfp_connection->codecs_state = HFP_CODECS_EXCHANGED; 2145 // now, pick link settings 2146 hfp_init_link_settings(hfp_connection); 2147 return; 2148 } 2149 2150 hfp_connection->trigger_codec_exchange = 1; 2151 } 2152 2153 void hfp_ag_establish_audio_connection(hci_con_handle_t acl_handle){ 2154 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2155 if (!hfp_connection){ 2156 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2157 return; 2158 } 2159 hfp_connection->trigger_codec_exchange = 0; 2160 hfp_connection->establish_audio_connection = 0; 2161 hfp_ag_setup_audio_connection(hfp_connection); 2162 hfp_run_for_context(hfp_connection); 2163 } 2164 2165 void hfp_ag_release_audio_connection(hci_con_handle_t acl_handle){ 2166 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2167 if (!hfp_connection){ 2168 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2169 return; 2170 } 2171 hfp_release_audio_connection(hfp_connection); 2172 hfp_run_for_context(hfp_connection); 2173 } 2174 2175 /** 2176 * @brief Enable in-band ring tone 2177 */ 2178 void hfp_ag_set_use_in_band_ring_tone(int use_in_band_ring_tone){ 2179 if (get_bit(hfp_supported_features, HFP_AGSF_IN_BAND_RING_TONE) == use_in_band_ring_tone){ 2180 return; 2181 } 2182 hfp_supported_features = store_bit(hfp_supported_features, HFP_AGSF_IN_BAND_RING_TONE, use_in_band_ring_tone); 2183 2184 btstack_linked_list_iterator_t it; 2185 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 2186 while (btstack_linked_list_iterator_has_next(&it)){ 2187 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 2188 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 2189 hfp_connection->command = HFP_CMD_CHANGE_IN_BAND_RING_TONE_SETTING; 2190 hfp_run_for_context(hfp_connection); 2191 } 2192 } 2193 2194 /** 2195 * @brief Called from GSM 2196 */ 2197 void hfp_ag_incoming_call(void){ 2198 hfp_ag_call_sm(HFP_AG_INCOMING_CALL, NULL); 2199 } 2200 2201 /** 2202 * @brief number is stored. 2203 */ 2204 void hfp_ag_set_clip(uint8_t type, const char * number){ 2205 hfp_gsm_handle_event_with_clip(HFP_AG_SET_CLIP, type, number); 2206 } 2207 2208 void hfp_ag_call_dropped(void){ 2209 hfp_ag_call_sm(HFP_AG_CALL_DROPPED, NULL); 2210 } 2211 2212 // call from AG UI 2213 void hfp_ag_answer_incoming_call(void){ 2214 hfp_ag_call_sm(HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG, NULL); 2215 } 2216 2217 void hfp_ag_join_held_call(void){ 2218 hfp_ag_call_sm(HFP_AG_HELD_CALL_JOINED_BY_AG, NULL); 2219 } 2220 2221 void hfp_ag_terminate_call(void){ 2222 hfp_ag_call_sm(HFP_AG_TERMINATE_CALL_BY_AG, NULL); 2223 } 2224 2225 void hfp_ag_outgoing_call_ringing(void){ 2226 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_RINGING, NULL); 2227 } 2228 2229 void hfp_ag_outgoing_call_established(void){ 2230 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_ESTABLISHED, NULL); 2231 } 2232 2233 void hfp_ag_outgoing_call_rejected(void){ 2234 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_REJECTED, NULL); 2235 } 2236 2237 void hfp_ag_outgoing_call_accepted(void){ 2238 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_ACCEPTED, NULL); 2239 } 2240 2241 void hfp_ag_hold_incoming_call(void){ 2242 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG, NULL); 2243 } 2244 2245 void hfp_ag_accept_held_incoming_call(void) { 2246 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG, NULL); 2247 } 2248 2249 void hfp_ag_reject_held_incoming_call(void){ 2250 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG, NULL); 2251 } 2252 2253 static void hfp_ag_set_ag_indicator(const char * name, int value){ 2254 int indicator_index = get_ag_indicator_index_for_name(name); 2255 if (indicator_index < 0) return; 2256 hfp_ag_indicators[indicator_index].status = value; 2257 2258 2259 btstack_linked_list_iterator_t it; 2260 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 2261 while (btstack_linked_list_iterator_has_next(&it)){ 2262 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 2263 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 2264 if (! hfp_connection->ag_indicators[indicator_index].enabled) { 2265 log_info("AG indicator '%s' changed to %u but not enabled", hfp_ag_indicators[indicator_index].name, value); 2266 continue; 2267 } 2268 log_info("AG indicator '%s' changed to %u, request transfer statur", hfp_ag_indicators[indicator_index].name, value); 2269 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 2270 hfp_run_for_context(hfp_connection); 2271 } 2272 } 2273 2274 void hfp_ag_set_registration_status(int status){ 2275 hfp_ag_set_ag_indicator("service", status); 2276 } 2277 2278 void hfp_ag_set_signal_strength(int strength){ 2279 hfp_ag_set_ag_indicator("signal", strength); 2280 } 2281 2282 void hfp_ag_set_roaming_status(int status){ 2283 hfp_ag_set_ag_indicator("roam", status); 2284 } 2285 2286 void hfp_ag_set_battery_level(int level){ 2287 hfp_ag_set_ag_indicator("battchg", level); 2288 } 2289 2290 void hfp_ag_activate_voice_recognition(hci_con_handle_t acl_handle, int activate){ 2291 if (!get_bit(hfp_supported_features, HFP_AGSF_VOICE_RECOGNITION_FUNCTION)) return; 2292 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2293 if (!hfp_connection){ 2294 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2295 return; 2296 } 2297 2298 if (!get_bit(hfp_connection->remote_supported_features, HFP_HFSF_VOICE_RECOGNITION_FUNCTION)) { 2299 log_info("AG cannot acivate voice recognition - not supported by HF"); 2300 return; 2301 } 2302 2303 if (activate){ 2304 hfp_ag_establish_audio_connection(acl_handle); 2305 } 2306 2307 hfp_connection->ag_activate_voice_recognition = activate; 2308 hfp_connection->command = HFP_CMD_AG_ACTIVATE_VOICE_RECOGNITION; 2309 hfp_run_for_context(hfp_connection); 2310 } 2311 2312 void hfp_ag_set_microphone_gain(hci_con_handle_t acl_handle, int gain){ 2313 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2314 if (!hfp_connection){ 2315 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2316 return; 2317 } 2318 if (hfp_connection->microphone_gain != gain){ 2319 hfp_connection->command = HFP_CMD_SET_MICROPHONE_GAIN; 2320 hfp_connection->microphone_gain = gain; 2321 hfp_connection->send_microphone_gain = 1; 2322 } 2323 hfp_run_for_context(hfp_connection); 2324 } 2325 2326 void hfp_ag_set_speaker_gain(hci_con_handle_t acl_handle, int gain){ 2327 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2328 if (!hfp_connection){ 2329 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2330 return; 2331 } 2332 if (hfp_connection->speaker_gain != gain){ 2333 hfp_connection->speaker_gain = gain; 2334 hfp_connection->send_speaker_gain = 1; 2335 } 2336 hfp_run_for_context(hfp_connection); 2337 } 2338 2339 void hfp_ag_send_phone_number_for_voice_tag(hci_con_handle_t acl_handle, const char * number){ 2340 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2341 if (!hfp_connection){ 2342 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2343 return; 2344 } 2345 hfp_ag_set_clip(0, number); 2346 hfp_connection->send_phone_number_for_voice_tag = 1; 2347 } 2348 2349 void hfp_ag_reject_phone_number_for_voice_tag(hci_con_handle_t acl_handle){ 2350 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2351 if (!hfp_connection){ 2352 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2353 return; 2354 } 2355 hfp_connection->send_error = 1; 2356 } 2357 2358 void hfp_ag_send_dtmf_code_done(hci_con_handle_t acl_handle){ 2359 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2360 if (!hfp_connection){ 2361 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2362 return; 2363 } 2364 hfp_connection->ok_pending = 1; 2365 } 2366 2367 void hfp_ag_set_subcriber_number_information(hfp_phone_number_t * numbers, int numbers_count){ 2368 subscriber_numbers = numbers; 2369 subscriber_numbers_count = numbers_count; 2370 } 2371 2372 void hfp_ag_clear_last_dialed_number(void){ 2373 hfp_gsm_clear_last_dialed_number(); 2374 } 2375 2376 void hfp_ag_notify_incoming_call_waiting(hci_con_handle_t acl_handle){ 2377 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2378 if (!hfp_connection){ 2379 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2380 return; 2381 } 2382 if (!hfp_connection->call_waiting_notification_enabled) return; 2383 2384 hfp_connection->ag_notify_incoming_call_waiting = 1; 2385 hfp_run_for_context(hfp_connection); 2386 } 2387 2388