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_hf.c" 39 40 // ***************************************************************************** 41 // 42 // HFP Hands-Free (HF) unit 43 // 44 // ***************************************************************************** 45 46 #include "btstack_config.h" 47 48 #include <stdint.h> 49 #include <string.h> 50 51 #include "bluetooth_sdp.h" 52 #include "btstack_debug.h" 53 #include "btstack_event.h" 54 #include "btstack_memory.h" 55 #include "btstack_run_loop.h" 56 #include "classic/core.h" 57 #include "classic/hfp.h" 58 #include "classic/hfp_hf.h" 59 #include "classic/sdp_client_rfcomm.h" 60 #include "classic/sdp_server.h" 61 #include "classic/sdp_util.h" 62 #include "hci.h" 63 #include "hci_cmd.h" 64 #include "hci_dump.h" 65 #include "l2cap.h" 66 67 static btstack_packet_callback_registration_t hci_event_callback_registration; 68 69 static const char default_hfp_hf_service_name[] = "Hands-Free unit"; 70 static uint16_t hfp_supported_features = HFP_DEFAULT_HF_SUPPORTED_FEATURES; 71 static uint8_t hfp_codecs_nr = 0; 72 static uint8_t hfp_codecs[HFP_MAX_NUM_CODECS]; 73 74 static uint8_t hfp_indicators_nr = 0; 75 static uint8_t hfp_indicators[HFP_MAX_NUM_INDICATORS]; 76 static uint32_t hfp_indicators_value[HFP_MAX_NUM_INDICATORS]; 77 78 static uint8_t hfp_hf_speaker_gain = 9; 79 static uint8_t hfp_hf_microphone_gain = 9; 80 81 static btstack_packet_handler_t hfp_hf_callback; 82 83 static hfp_call_status_t hfp_call_status; 84 static hfp_callsetup_status_t hfp_callsetup_status; 85 static hfp_callheld_status_t hfp_callheld_status; 86 87 static char phone_number[25]; 88 89 static hfp_connection_t * get_hfp_hf_connection_context_for_acl_handle(uint16_t handle){ 90 btstack_linked_list_iterator_t it; 91 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 92 while (btstack_linked_list_iterator_has_next(&it)){ 93 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 94 if (hfp_connection->acl_handle != handle) continue; 95 if (hfp_connection->local_role != HFP_ROLE_HF) continue; 96 return hfp_connection; 97 } 98 return NULL; 99 } 100 101 void hfp_hf_register_packet_handler(btstack_packet_handler_t callback){ 102 if (callback == NULL){ 103 log_error("hfp_hf_register_packet_handler called with NULL callback"); 104 return; 105 } 106 hfp_hf_callback = callback; 107 hfp_set_hf_callback(callback); 108 } 109 110 static void hfp_hf_emit_subscriber_information(btstack_packet_handler_t callback, uint8_t event_subtype, uint8_t status, uint8_t bnip_type, const char * bnip_number){ 111 if (!callback) return; 112 uint8_t event[31]; 113 event[0] = HCI_EVENT_HFP_META; 114 event[1] = sizeof(event) - 2; 115 event[2] = event_subtype; 116 event[3] = status; 117 event[4] = bnip_type; 118 uint16_t size = btstack_min(strlen(bnip_number), sizeof(event) - 6); 119 strncpy((char*)&event[5], bnip_number, size); 120 event[5 + size] = 0; 121 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 122 } 123 124 static void hfp_hf_emit_type_and_number(btstack_packet_handler_t callback, uint8_t event_subtype, uint8_t bnip_type, const char * bnip_number){ 125 if (!callback) return; 126 uint8_t event[30]; 127 event[0] = HCI_EVENT_HFP_META; 128 event[1] = sizeof(event) - 2; 129 event[2] = event_subtype; 130 event[3] = bnip_type; 131 uint16_t size = btstack_min(strlen(bnip_number), sizeof(event) - 5); 132 strncpy((char*)&event[4], bnip_number, size); 133 event[4 + size] = 0; 134 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 135 } 136 137 static void hfp_hf_emit_enhanced_call_status(btstack_packet_handler_t callback, hfp_connection_t * connection){ 138 if (!callback) return; 139 uint8_t event[36]; 140 int pos = 0; 141 event[pos++] = HCI_EVENT_HFP_META; 142 event[pos++] = sizeof(event) - 2; 143 event[pos++] = HFP_SUBEVENT_ENHANCED_CALL_STATUS; 144 event[pos++] = connection->clcc_idx; 145 event[pos++] = connection->clcc_dir; 146 event[pos++] = connection->clcc_status; 147 event[pos++] = connection->clcc_mode; 148 event[pos++] = connection->clcc_mpty; 149 event[pos++] = connection->bnip_type; 150 uint16_t size = btstack_min(strlen(connection->bnip_number), sizeof(event) - pos); 151 strncpy((char*)&event[pos], connection->bnip_number, size); 152 pos += size; 153 event[pos++] = 0; 154 (*callback)(HCI_EVENT_PACKET, 0, event, pos); 155 } 156 157 static int has_codec_negotiation_feature(hfp_connection_t * hfp_connection){ 158 int hf = get_bit(hfp_supported_features, HFP_HFSF_CODEC_NEGOTIATION); 159 int ag = get_bit(hfp_connection->remote_supported_features, HFP_AGSF_CODEC_NEGOTIATION); 160 return hf && ag; 161 } 162 163 static int has_call_waiting_and_3way_calling_feature(hfp_connection_t * hfp_connection){ 164 int hf = get_bit(hfp_supported_features, HFP_HFSF_THREE_WAY_CALLING); 165 int ag = get_bit(hfp_connection->remote_supported_features, HFP_AGSF_THREE_WAY_CALLING); 166 return hf && ag; 167 } 168 169 170 static int has_hf_indicators_feature(hfp_connection_t * hfp_connection){ 171 int hf = get_bit(hfp_supported_features, HFP_HFSF_HF_INDICATORS); 172 int ag = get_bit(hfp_connection->remote_supported_features, HFP_AGSF_HF_INDICATORS); 173 return hf && ag; 174 } 175 176 void hfp_hf_create_sdp_record(uint8_t * service, uint32_t service_record_handle, int rfcomm_channel_nr, const char * name, uint16_t supported_features, int wide_band_speech){ 177 if (!name){ 178 name = default_hfp_hf_service_name; 179 } 180 hfp_create_sdp_record(service, service_record_handle, BLUETOOTH_SERVICE_CLASS_HANDSFREE, rfcomm_channel_nr, name); 181 182 // Construct SupportedFeatures for SDP bitmap: 183 // 184 // "The values of the “SupportedFeatures” bitmap given in Table 5.4 shall be the same as the values 185 // of the Bits 0 to 4 of the unsolicited result code +BRSF" 186 // 187 // Wide band speech (bit 5) requires Codec negotiation 188 // 189 uint16_t sdp_features = supported_features & 0x1f; 190 if (wide_band_speech && (supported_features & (1 << HFP_HFSF_CODEC_NEGOTIATION))){ 191 sdp_features |= 1 << 5; 192 } 193 de_add_number(service, DE_UINT, DE_SIZE_16, 0x0311); // Hands-Free Profile - SupportedFeatures 194 de_add_number(service, DE_UINT, DE_SIZE_16, sdp_features); 195 } 196 197 198 static inline int hfp_hf_send_cmd(uint16_t cid, const char * cmd){ 199 char buffer[20]; 200 snprintf(buffer, sizeof(buffer), "AT%s\r\n", cmd); 201 return send_str_over_rfcomm(cid, buffer); 202 } 203 204 static inline int hfp_hf_send_cmd_with_mark(uint16_t cid, const char * cmd, const char * mark){ 205 char buffer[20]; 206 snprintf(buffer, sizeof(buffer), "AT%s%s\r\n", cmd, mark); 207 return send_str_over_rfcomm(cid, buffer); 208 } 209 210 static inline int hfp_hf_send_cmd_with_int(uint16_t cid, const char * cmd, uint16_t value){ 211 char buffer[40]; 212 snprintf(buffer, sizeof(buffer), "AT%s=%d\r\n", cmd, value); 213 return send_str_over_rfcomm(cid, buffer); 214 } 215 216 static int hfp_hf_cmd_notify_on_codecs(uint16_t cid){ 217 char buffer[30]; 218 const int size = sizeof(buffer); 219 int offset = snprintf(buffer, size, "AT%s=", HFP_AVAILABLE_CODECS); 220 offset += join(buffer+offset, size-offset, hfp_codecs, hfp_codecs_nr); 221 offset += snprintf(buffer+offset, size-offset, "\r\n"); 222 return send_str_over_rfcomm(cid, buffer); 223 } 224 225 static int hfp_hf_cmd_activate_status_update_for_ag_indicator(uint16_t cid, uint32_t indicators_status, int indicators_nr){ 226 char buffer[50]; 227 const int size = sizeof(buffer); 228 int offset = snprintf(buffer, size, "AT%s=", HFP_UPDATE_ENABLE_STATUS_FOR_INDIVIDUAL_AG_INDICATORS); 229 offset += join_bitmap(buffer+offset, size-offset, indicators_status, indicators_nr); 230 offset += snprintf(buffer+offset, size-offset, "\r\n"); 231 return send_str_over_rfcomm(cid, buffer); 232 } 233 234 static int hfp_hf_cmd_list_supported_generic_status_indicators(uint16_t cid){ 235 char buffer[30]; 236 const int size = sizeof(buffer); 237 int offset = snprintf(buffer, size, "AT%s=", HFP_GENERIC_STATUS_INDICATOR); 238 offset += join(buffer+offset, size-offset, hfp_indicators, hfp_indicators_nr); 239 offset += snprintf(buffer+offset, size-offset, "\r\n"); 240 return send_str_over_rfcomm(cid, buffer); 241 } 242 243 static int hfp_hf_cmd_activate_status_update_for_all_ag_indicators(uint16_t cid, uint8_t activate){ 244 char buffer[20]; 245 snprintf(buffer, sizeof(buffer), "AT%s=3,0,0,%d\r\n", HFP_ENABLE_STATUS_UPDATE_FOR_AG_INDICATORS, activate); 246 return send_str_over_rfcomm(cid, buffer); 247 } 248 249 static int hfp_hf_initiate_outgoing_call_cmd(uint16_t cid){ 250 char buffer[40]; 251 snprintf(buffer, sizeof(buffer), "%s%s;\r\n", HFP_CALL_PHONE_NUMBER, phone_number); 252 return send_str_over_rfcomm(cid, buffer); 253 } 254 255 static int hfp_hf_send_memory_dial_cmd(uint16_t cid, int memory_id){ 256 char buffer[40]; 257 snprintf(buffer, sizeof(buffer), "%s>%d;\r\n", HFP_CALL_PHONE_NUMBER, memory_id); 258 return send_str_over_rfcomm(cid, buffer); 259 } 260 261 static int hfp_hf_send_chld(uint16_t cid, unsigned int number){ 262 char buffer[40]; 263 snprintf(buffer, sizeof(buffer), "AT%s=%u\r\n", HFP_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES, number); 264 return send_str_over_rfcomm(cid, buffer); 265 } 266 267 static int hfp_hf_send_dtmf(uint16_t cid, char code){ 268 char buffer[20]; 269 snprintf(buffer, sizeof(buffer), "AT%s=%c\r\n", HFP_TRANSMIT_DTMF_CODES, code); 270 return send_str_over_rfcomm(cid, buffer); 271 } 272 273 static int hfp_hf_cmd_ata(uint16_t cid){ 274 return send_str_over_rfcomm(cid, (char *) "ATA\r\n"); 275 } 276 277 static int hfp_hf_cmd_exchange_supported_features(uint16_t cid){ 278 return hfp_hf_send_cmd_with_int(cid, HFP_SUPPORTED_FEATURES, hfp_supported_features); 279 } 280 281 static int hfp_hf_cmd_retrieve_indicators(uint16_t cid){ 282 return hfp_hf_send_cmd_with_mark(cid, HFP_INDICATOR, "=?"); 283 } 284 285 static int hfp_hf_cmd_retrieve_indicators_status(uint16_t cid){ 286 return hfp_hf_send_cmd_with_mark(cid, HFP_INDICATOR, "?"); 287 } 288 289 static int hfp_hf_cmd_retrieve_can_hold_call(uint16_t cid){ 290 return hfp_hf_send_cmd_with_mark(cid, HFP_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES, "=?"); 291 } 292 293 static int hfp_hf_cmd_retrieve_supported_generic_status_indicators(uint16_t cid){ 294 return hfp_hf_send_cmd_with_mark(cid, HFP_GENERIC_STATUS_INDICATOR, "=?"); 295 } 296 297 static int hfp_hf_cmd_list_initital_supported_generic_status_indicators(uint16_t cid){ 298 return hfp_hf_send_cmd_with_mark(cid, HFP_GENERIC_STATUS_INDICATOR, "?"); 299 } 300 301 static int hfp_hf_cmd_query_operator_name_format(uint16_t cid){ 302 return hfp_hf_send_cmd_with_mark(cid, HFP_QUERY_OPERATOR_SELECTION, "=3,0"); 303 } 304 305 static int hfp_hf_cmd_query_operator_name(uint16_t cid){ 306 return hfp_hf_send_cmd_with_mark(cid, HFP_QUERY_OPERATOR_SELECTION, "?"); 307 } 308 309 static int hfp_hf_cmd_trigger_codec_connection_setup(uint16_t cid){ 310 return hfp_hf_send_cmd(cid, HFP_TRIGGER_CODEC_CONNECTION_SETUP); 311 } 312 313 static int hfp_hf_set_microphone_gain_cmd(uint16_t cid, int gain){ 314 return hfp_hf_send_cmd_with_int(cid, HFP_SET_MICROPHONE_GAIN, gain); 315 } 316 317 static int hfp_hf_set_speaker_gain_cmd(uint16_t cid, int gain){ 318 return hfp_hf_send_cmd_with_int(cid, HFP_SET_SPEAKER_GAIN, gain); 319 } 320 321 static int hfp_hf_set_calling_line_notification_cmd(uint16_t cid, uint8_t activate){ 322 return hfp_hf_send_cmd_with_int(cid, HFP_ENABLE_CLIP, activate); 323 } 324 325 static int hfp_hf_set_echo_canceling_and_noise_reduction_cmd(uint16_t cid, uint8_t activate){ 326 return hfp_hf_send_cmd_with_int(cid, HFP_TURN_OFF_EC_AND_NR, activate); 327 } 328 329 static int hfp_hf_set_voice_recognition_notification_cmd(uint16_t cid, uint8_t activate){ 330 return hfp_hf_send_cmd_with_int(cid, HFP_ACTIVATE_VOICE_RECOGNITION, activate); 331 } 332 333 static int hfp_hf_set_call_waiting_notification_cmd(uint16_t cid, uint8_t activate){ 334 return hfp_hf_send_cmd_with_int(cid, HFP_ENABLE_CALL_WAITING_NOTIFICATION, activate); 335 } 336 337 static int hfp_hf_cmd_confirm_codec(uint16_t cid, uint8_t codec){ 338 return hfp_hf_send_cmd_with_int(cid, HFP_CONFIRM_COMMON_CODEC, codec); 339 } 340 341 static int hfp_hf_cmd_enable_extended_audio_gateway_error_report(uint16_t cid, uint8_t enable){ 342 return hfp_hf_send_cmd_with_int(cid, HFP_ENABLE_EXTENDED_AUDIO_GATEWAY_ERROR, enable); 343 } 344 345 static int hfp_hf_send_redial_last_number_cmd(uint16_t cid){ 346 return hfp_hf_send_cmd(cid, HFP_REDIAL_LAST_NUMBER); 347 } 348 349 static int hfp_hf_send_chup(uint16_t cid){ 350 return hfp_hf_send_cmd(cid, HFP_HANG_UP_CALL); 351 } 352 353 static int hfp_hf_send_binp(uint16_t cid){ 354 return hfp_hf_send_cmd_with_mark(cid, HFP_PHONE_NUMBER_FOR_VOICE_TAG, "=1"); 355 } 356 357 static int hfp_hf_send_clcc(uint16_t cid){ 358 return hfp_hf_send_cmd(cid, HFP_LIST_CURRENT_CALLS); 359 } 360 361 static void hfp_emit_ag_indicator_event(btstack_packet_handler_t callback, hfp_ag_indicator_t indicator){ 362 if (!callback) return; 363 uint8_t event[10+HFP_MAX_INDICATOR_DESC_SIZE+1]; 364 int pos = 0; 365 event[pos++] = HCI_EVENT_HFP_META; 366 event[pos++] = sizeof(event) - 2; 367 event[pos++] = HFP_SUBEVENT_AG_INDICATOR_STATUS_CHANGED; 368 event[pos++] = indicator.index; 369 event[pos++] = indicator.status; 370 event[pos++] = indicator.min_range; 371 event[pos++] = indicator.max_range; 372 event[pos++] = indicator.mandatory; 373 event[pos++] = indicator.enabled; 374 event[pos++] = indicator.status_changed; 375 strncpy((char*)&event[pos], indicator.name, HFP_MAX_INDICATOR_DESC_SIZE); 376 pos += HFP_MAX_INDICATOR_DESC_SIZE; 377 event[pos] = 0; 378 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 379 } 380 381 static void hfp_emit_network_operator_event(btstack_packet_handler_t callback, hfp_network_opearator_t network_operator){ 382 if (!callback) return; 383 uint8_t event[5+HFP_MAX_NETWORK_OPERATOR_NAME_SIZE+1]; 384 event[0] = HCI_EVENT_HFP_META; 385 event[1] = sizeof(event) - 2; 386 event[2] = HFP_SUBEVENT_NETWORK_OPERATOR_CHANGED; 387 event[3] = network_operator.mode; 388 event[4] = network_operator.format; 389 strncpy((char*)&event[5], network_operator.name, HFP_MAX_NETWORK_OPERATOR_NAME_SIZE); 390 event[5+HFP_MAX_NETWORK_OPERATOR_NAME_SIZE] = 0; 391 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 392 } 393 394 static int hfp_hf_run_for_context_service_level_connection(hfp_connection_t * hfp_connection){ 395 if (hfp_connection->state >= HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) return 0; 396 if (hfp_connection->ok_pending) return 0; 397 int done = 1; 398 399 switch (hfp_connection->state){ 400 case HFP_EXCHANGE_SUPPORTED_FEATURES: 401 hfp_hf_drop_mSBC_if_eSCO_not_supported(hfp_codecs, &hfp_codecs_nr); 402 hfp_connection->state = HFP_W4_EXCHANGE_SUPPORTED_FEATURES; 403 hfp_hf_cmd_exchange_supported_features(hfp_connection->rfcomm_cid); 404 break; 405 case HFP_NOTIFY_ON_CODECS: 406 hfp_connection->state = HFP_W4_NOTIFY_ON_CODECS; 407 hfp_hf_cmd_notify_on_codecs(hfp_connection->rfcomm_cid); 408 break; 409 case HFP_RETRIEVE_INDICATORS: 410 hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS; 411 hfp_hf_cmd_retrieve_indicators(hfp_connection->rfcomm_cid); 412 break; 413 case HFP_RETRIEVE_INDICATORS_STATUS: 414 hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS_STATUS; 415 hfp_hf_cmd_retrieve_indicators_status(hfp_connection->rfcomm_cid); 416 break; 417 case HFP_ENABLE_INDICATORS_STATUS_UPDATE: 418 hfp_connection->state = HFP_W4_ENABLE_INDICATORS_STATUS_UPDATE; 419 hfp_hf_cmd_activate_status_update_for_all_ag_indicators(hfp_connection->rfcomm_cid, 1); 420 break; 421 case HFP_RETRIEVE_CAN_HOLD_CALL: 422 hfp_connection->state = HFP_W4_RETRIEVE_CAN_HOLD_CALL; 423 hfp_hf_cmd_retrieve_can_hold_call(hfp_connection->rfcomm_cid); 424 break; 425 case HFP_LIST_GENERIC_STATUS_INDICATORS: 426 hfp_connection->state = HFP_W4_LIST_GENERIC_STATUS_INDICATORS; 427 hfp_hf_cmd_list_supported_generic_status_indicators(hfp_connection->rfcomm_cid); 428 break; 429 case HFP_RETRIEVE_GENERIC_STATUS_INDICATORS: 430 hfp_connection->state = HFP_W4_RETRIEVE_GENERIC_STATUS_INDICATORS; 431 hfp_hf_cmd_retrieve_supported_generic_status_indicators(hfp_connection->rfcomm_cid); 432 break; 433 case HFP_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS: 434 hfp_connection->state = HFP_W4_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS; 435 hfp_hf_cmd_list_initital_supported_generic_status_indicators(hfp_connection->rfcomm_cid); 436 break; 437 default: 438 done = 0; 439 break; 440 } 441 return done; 442 } 443 444 445 static int hfp_hf_run_for_context_service_level_connection_queries(hfp_connection_t * hfp_connection){ 446 if (hfp_connection->state != HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) return 0; 447 if (hfp_connection->ok_pending) return 0; 448 449 int done = 0; 450 if (hfp_connection->enable_status_update_for_ag_indicators != 0xFF){ 451 hfp_connection->ok_pending = 1; 452 done = 1; 453 hfp_hf_cmd_activate_status_update_for_all_ag_indicators(hfp_connection->rfcomm_cid, hfp_connection->enable_status_update_for_ag_indicators); 454 return done; 455 }; 456 if (hfp_connection->change_status_update_for_individual_ag_indicators){ 457 hfp_connection->ok_pending = 1; 458 done = 1; 459 hfp_hf_cmd_activate_status_update_for_ag_indicator(hfp_connection->rfcomm_cid, 460 hfp_connection->ag_indicators_status_update_bitmap, 461 hfp_connection->ag_indicators_nr); 462 return done; 463 } 464 465 switch (hfp_connection->hf_query_operator_state){ 466 case HFP_HF_QUERY_OPERATOR_SET_FORMAT: 467 hfp_connection->hf_query_operator_state = HFP_HF_QUERY_OPERATOR_W4_SET_FORMAT_OK; 468 hfp_connection->ok_pending = 1; 469 hfp_hf_cmd_query_operator_name_format(hfp_connection->rfcomm_cid); 470 return 1; 471 case HFP_HF_QUERY_OPERATOR_SEND_QUERY: 472 hfp_connection->hf_query_operator_state = HPF_HF_QUERY_OPERATOR_W4_RESULT; 473 hfp_connection->ok_pending = 1; 474 hfp_hf_cmd_query_operator_name(hfp_connection->rfcomm_cid); 475 return 1; 476 default: 477 break; 478 } 479 480 if (hfp_connection->enable_extended_audio_gateway_error_report){ 481 hfp_connection->ok_pending = 1; 482 done = 1; 483 hfp_hf_cmd_enable_extended_audio_gateway_error_report(hfp_connection->rfcomm_cid, hfp_connection->enable_extended_audio_gateway_error_report); 484 return done; 485 } 486 487 return done; 488 } 489 490 static int codecs_exchange_state_machine(hfp_connection_t * hfp_connection){ 491 /* events ( == commands): 492 HFP_CMD_AVAILABLE_CODECS == received AT+BAC with list of codecs 493 HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP: 494 hf_trigger_codec_connection_setup == received BCC 495 ag_trigger_codec_connection_setup == received from AG to send BCS 496 HFP_CMD_HF_CONFIRMED_CODEC == received AT+BCS 497 */ 498 499 if (hfp_connection->ok_pending) return 0; 500 501 switch (hfp_connection->command){ 502 case HFP_CMD_AVAILABLE_CODECS: 503 if (hfp_connection->codecs_state == HFP_CODECS_W4_AG_COMMON_CODEC) return 0; 504 505 hfp_connection->codecs_state = HFP_CODECS_W4_AG_COMMON_CODEC; 506 hfp_connection->ok_pending = 1; 507 hfp_hf_cmd_notify_on_codecs(hfp_connection->rfcomm_cid); 508 return 1; 509 case HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP: 510 hfp_connection->codec_confirmed = 0; 511 hfp_connection->suggested_codec = 0; 512 hfp_connection->negotiated_codec = 0; 513 514 hfp_connection->codecs_state = HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE; 515 hfp_connection->ok_pending = 1; 516 hfp_hf_cmd_trigger_codec_connection_setup(hfp_connection->rfcomm_cid); 517 break; 518 519 case HFP_CMD_AG_SUGGESTED_CODEC:{ 520 if (hfp_supports_codec(hfp_connection->suggested_codec, hfp_codecs_nr, hfp_codecs)){ 521 hfp_connection->codec_confirmed = hfp_connection->suggested_codec; 522 hfp_connection->ok_pending = 1; 523 hfp_connection->codecs_state = HFP_CODECS_HF_CONFIRMED_CODEC; 524 hfp_connection->negotiated_codec = hfp_connection->suggested_codec; 525 log_info("hfp: codec confirmed: %s", (hfp_connection->negotiated_codec == HFP_CODEC_MSBC) ? "mSBC" : "CVSD"); 526 hfp_hf_cmd_confirm_codec(hfp_connection->rfcomm_cid, hfp_connection->codec_confirmed); 527 } else { 528 hfp_connection->codec_confirmed = 0; 529 hfp_connection->suggested_codec = 0; 530 hfp_connection->negotiated_codec = 0; 531 hfp_connection->codecs_state = HFP_CODECS_W4_AG_COMMON_CODEC; 532 hfp_connection->ok_pending = 1; 533 hfp_hf_cmd_notify_on_codecs(hfp_connection->rfcomm_cid); 534 535 } 536 break; 537 } 538 default: 539 break; 540 } 541 return 0; 542 } 543 544 static int hfp_hf_run_for_audio_connection(hfp_connection_t * hfp_connection){ 545 if ((hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) || 546 (hfp_connection->state > HFP_W2_DISCONNECT_SCO)) return 0; 547 548 if (hfp_connection->release_audio_connection){ 549 hfp_connection->state = HFP_W4_SCO_DISCONNECTED; 550 hfp_connection->release_audio_connection = 0; 551 gap_disconnect(hfp_connection->sco_handle); 552 return 1; 553 } 554 555 if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED) return 0; 556 557 // run codecs exchange 558 int done = codecs_exchange_state_machine(hfp_connection); 559 if (done) return 1; 560 561 if (hfp_connection->codecs_state != HFP_CODECS_EXCHANGED) return 0; 562 if (hfp_connection->establish_audio_connection){ 563 hfp_connection->state = HFP_W4_SCO_CONNECTED; 564 hfp_connection->establish_audio_connection = 0; 565 hfp_setup_synchronous_connection(hfp_connection); 566 return 1; 567 } 568 569 return 0; 570 } 571 572 573 static int call_setup_state_machine(hfp_connection_t * hfp_connection){ 574 if (hfp_connection->hf_answer_incoming_call){ 575 hfp_hf_cmd_ata(hfp_connection->rfcomm_cid); 576 hfp_connection->hf_answer_incoming_call = 0; 577 return 1; 578 } 579 return 0; 580 } 581 582 static void hfp_run_for_context(hfp_connection_t * hfp_connection){ 583 if (!hfp_connection) return; 584 if (!hfp_connection->rfcomm_cid) return; 585 586 if (hfp_connection->local_role != HFP_ROLE_HF) { 587 log_info("HFP HF%p, wrong role %u", hfp_connection, hfp_connection->local_role); 588 return; 589 } 590 591 if (hfp_connection->hf_accept_sco && hci_can_send_command_packet_now()){ 592 593 bool eSCO = hfp_connection->hf_accept_sco == 2; 594 hfp_connection->hf_accept_sco = 0; 595 596 // notify about codec selection if not done already 597 if (hfp_connection->negotiated_codec == 0){ 598 hfp_connection->negotiated_codec = HFP_CODEC_CVSD; 599 } 600 601 // remote supported feature eSCO is set if link type is eSCO 602 // eSCO: S4 - max latency == transmission interval = 0x000c == 12 ms, 603 uint16_t max_latency; 604 uint8_t retransmission_effort; 605 uint16_t packet_types; 606 607 if (eSCO && hci_extended_sco_link_supported() && hci_remote_esco_supported(hfp_connection->acl_handle)){ 608 max_latency = 0x000c; 609 retransmission_effort = 0x02; 610 // eSCO: EV3 and 2-EV3 611 packet_types = 0x0048; 612 } else { 613 max_latency = 0xffff; 614 retransmission_effort = 0xff; 615 // sco: HV1 and HV3 616 packet_types = 0x005; 617 } 618 619 // mSBC only allows for transparent data 620 uint16_t sco_voice_setting = hci_get_sco_voice_setting(); 621 if (hfp_connection->negotiated_codec == HFP_CODEC_MSBC){ 622 sco_voice_setting = 0x0043; // Transparent data 623 } 624 625 // filter packet types 626 packet_types &= hfp_get_sco_packet_types(); 627 628 // bits 6-9 are 'don't allow' 629 packet_types ^= 0x3c0; 630 631 log_info("HFP: sending hci_accept_connection_request, packet types 0x%04x, sco_voice_setting 0x%02x", packet_types, sco_voice_setting); 632 hci_send_cmd(&hci_accept_synchronous_connection, hfp_connection->remote_addr, 8000, 8000, max_latency, 633 sco_voice_setting, retransmission_effort, packet_types); 634 return; 635 } 636 637 if (!rfcomm_can_send_packet_now(hfp_connection->rfcomm_cid)) { 638 rfcomm_request_can_send_now_event(hfp_connection->rfcomm_cid); 639 return; 640 } 641 int done = hfp_hf_run_for_context_service_level_connection(hfp_connection); 642 if (!done){ 643 done = hfp_hf_run_for_context_service_level_connection_queries(hfp_connection); 644 } 645 if (!done){ 646 done = hfp_hf_run_for_audio_connection(hfp_connection); 647 } 648 if (!done){ 649 done = call_setup_state_machine(hfp_connection); 650 } 651 652 // don't send a new command while ok still pending 653 if (hfp_connection->ok_pending) return; 654 655 if (hfp_connection->send_microphone_gain){ 656 hfp_connection->send_microphone_gain = 0; 657 hfp_connection->ok_pending = 1; 658 hfp_hf_set_microphone_gain_cmd(hfp_connection->rfcomm_cid, hfp_connection->microphone_gain); 659 return; 660 } 661 662 if (hfp_connection->send_speaker_gain){ 663 hfp_connection->send_speaker_gain = 0; 664 hfp_connection->ok_pending = 1; 665 hfp_hf_set_speaker_gain_cmd(hfp_connection->rfcomm_cid, hfp_connection->speaker_gain); 666 return; 667 } 668 669 if (hfp_connection->hf_deactivate_calling_line_notification){ 670 hfp_connection->hf_deactivate_calling_line_notification = 0; 671 hfp_connection->ok_pending = 1; 672 hfp_hf_set_calling_line_notification_cmd(hfp_connection->rfcomm_cid, 0); 673 return; 674 } 675 676 if (hfp_connection->hf_activate_calling_line_notification){ 677 hfp_connection->hf_activate_calling_line_notification = 0; 678 hfp_connection->ok_pending = 1; 679 hfp_hf_set_calling_line_notification_cmd(hfp_connection->rfcomm_cid, 1); 680 return; 681 } 682 683 if (hfp_connection->hf_deactivate_echo_canceling_and_noise_reduction){ 684 hfp_connection->hf_deactivate_echo_canceling_and_noise_reduction = 0; 685 hfp_connection->ok_pending = 1; 686 hfp_hf_set_echo_canceling_and_noise_reduction_cmd(hfp_connection->rfcomm_cid, 0); 687 return; 688 } 689 690 if (hfp_connection->hf_activate_echo_canceling_and_noise_reduction){ 691 hfp_connection->hf_activate_echo_canceling_and_noise_reduction = 0; 692 hfp_connection->ok_pending = 1; 693 hfp_hf_set_echo_canceling_and_noise_reduction_cmd(hfp_connection->rfcomm_cid, 1); 694 return; 695 } 696 697 if (hfp_connection->hf_deactivate_voice_recognition_notification){ 698 hfp_connection->hf_deactivate_voice_recognition_notification = 0; 699 hfp_connection->ok_pending = 1; 700 hfp_hf_set_voice_recognition_notification_cmd(hfp_connection->rfcomm_cid, 0); 701 return; 702 } 703 704 if (hfp_connection->hf_activate_voice_recognition_notification){ 705 hfp_connection->hf_activate_voice_recognition_notification = 0; 706 hfp_connection->ok_pending = 1; 707 hfp_hf_set_voice_recognition_notification_cmd(hfp_connection->rfcomm_cid, 1); 708 return; 709 } 710 711 712 if (hfp_connection->hf_deactivate_call_waiting_notification){ 713 hfp_connection->hf_deactivate_call_waiting_notification = 0; 714 hfp_connection->ok_pending = 1; 715 hfp_hf_set_call_waiting_notification_cmd(hfp_connection->rfcomm_cid, 0); 716 return; 717 } 718 719 if (hfp_connection->hf_activate_call_waiting_notification){ 720 hfp_connection->hf_activate_call_waiting_notification = 0; 721 hfp_connection->ok_pending = 1; 722 hfp_hf_set_call_waiting_notification_cmd(hfp_connection->rfcomm_cid, 1); 723 return; 724 } 725 726 if (hfp_connection->hf_initiate_outgoing_call){ 727 hfp_connection->hf_initiate_outgoing_call = 0; 728 hfp_connection->ok_pending = 1; 729 hfp_hf_initiate_outgoing_call_cmd(hfp_connection->rfcomm_cid); 730 return; 731 } 732 733 if (hfp_connection->hf_initiate_memory_dialing){ 734 hfp_connection->hf_initiate_memory_dialing = 0; 735 hfp_connection->ok_pending = 1; 736 hfp_hf_send_memory_dial_cmd(hfp_connection->rfcomm_cid, hfp_connection->memory_id); 737 return; 738 } 739 740 if (hfp_connection->hf_initiate_redial_last_number){ 741 hfp_connection->hf_initiate_redial_last_number = 0; 742 hfp_connection->ok_pending = 1; 743 hfp_hf_send_redial_last_number_cmd(hfp_connection->rfcomm_cid); 744 return; 745 } 746 747 if (hfp_connection->hf_send_chup){ 748 hfp_connection->hf_send_chup = 0; 749 hfp_connection->ok_pending = 1; 750 hfp_hf_send_chup(hfp_connection->rfcomm_cid); 751 return; 752 } 753 754 if (hfp_connection->hf_send_chld_0){ 755 hfp_connection->hf_send_chld_0 = 0; 756 hfp_connection->ok_pending = 1; 757 hfp_hf_send_chld(hfp_connection->rfcomm_cid, 0); 758 return; 759 } 760 761 if (hfp_connection->hf_send_chld_1){ 762 hfp_connection->hf_send_chld_1 = 0; 763 hfp_connection->ok_pending = 1; 764 hfp_hf_send_chld(hfp_connection->rfcomm_cid, 1); 765 return; 766 } 767 768 if (hfp_connection->hf_send_chld_2){ 769 hfp_connection->hf_send_chld_2 = 0; 770 hfp_connection->ok_pending = 1; 771 hfp_hf_send_chld(hfp_connection->rfcomm_cid, 2); 772 return; 773 } 774 775 if (hfp_connection->hf_send_chld_3){ 776 hfp_connection->hf_send_chld_3 = 0; 777 hfp_connection->ok_pending = 1; 778 hfp_hf_send_chld(hfp_connection->rfcomm_cid, 3); 779 return; 780 } 781 782 if (hfp_connection->hf_send_chld_4){ 783 hfp_connection->hf_send_chld_4 = 0; 784 hfp_connection->ok_pending = 1; 785 hfp_hf_send_chld(hfp_connection->rfcomm_cid, 4); 786 return; 787 } 788 789 if (hfp_connection->hf_send_chld_x){ 790 hfp_connection->hf_send_chld_x = 0; 791 hfp_connection->ok_pending = 1; 792 hfp_hf_send_chld(hfp_connection->rfcomm_cid, hfp_connection->hf_send_chld_x_index); 793 return; 794 } 795 796 if (hfp_connection->hf_send_dtmf_code){ 797 char code = hfp_connection->hf_send_dtmf_code; 798 hfp_connection->hf_send_dtmf_code = 0; 799 hfp_connection->ok_pending = 1; 800 hfp_hf_send_dtmf(hfp_connection->rfcomm_cid, code); 801 return; 802 } 803 804 if (hfp_connection->hf_send_binp){ 805 hfp_connection->hf_send_binp = 0; 806 hfp_connection->ok_pending = 1; 807 hfp_hf_send_binp(hfp_connection->rfcomm_cid); 808 return; 809 } 810 811 if (hfp_connection->hf_send_clcc){ 812 hfp_connection->hf_send_clcc = 0; 813 hfp_connection->ok_pending = 1; 814 hfp_hf_send_clcc(hfp_connection->rfcomm_cid); 815 return; 816 } 817 818 if (hfp_connection->hf_send_rrh){ 819 hfp_connection->hf_send_rrh = 0; 820 char buffer[20]; 821 switch (hfp_connection->hf_send_rrh_command){ 822 case '?': 823 sprintf(buffer, "AT%s?\r\n", HFP_RESPONSE_AND_HOLD); 824 send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer); 825 return; 826 case '0': 827 case '1': 828 case '2': 829 sprintf(buffer, "AT%s=%c\r\n", HFP_RESPONSE_AND_HOLD, hfp_connection->hf_send_rrh_command); 830 send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer); 831 return; 832 default: 833 break; 834 } 835 return; 836 } 837 838 if (hfp_connection->hf_send_cnum){ 839 hfp_connection->hf_send_cnum = 0; 840 char buffer[20]; 841 sprintf(buffer, "AT%s\r\n", HFP_SUBSCRIBER_NUMBER_INFORMATION); 842 send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer); 843 return; 844 } 845 846 // update HF indicators 847 if (hfp_connection->generic_status_update_bitmap){ 848 int i; 849 for (i=0;i<hfp_indicators_nr;i++){ 850 if (get_bit(hfp_connection->generic_status_update_bitmap, i)){ 851 if (hfp_connection->generic_status_indicators[i].state){ 852 hfp_connection->ok_pending = 1; 853 hfp_connection->generic_status_update_bitmap = store_bit(hfp_connection->generic_status_update_bitmap, i, 0); 854 char buffer[30]; 855 sprintf(buffer, "AT%s=%u,%u\r\n", HFP_TRANSFER_HF_INDICATOR_STATUS, hfp_indicators[i], (unsigned int) hfp_indicators_value[i]); 856 send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer); 857 } else { 858 log_info("Not sending HF indicator %u as it is disabled", hfp_indicators[i]); 859 } 860 return; 861 } 862 } 863 } 864 865 if (done) return; 866 // deal with disconnect 867 switch (hfp_connection->state){ 868 case HFP_W2_DISCONNECT_RFCOMM: 869 hfp_connection->state = HFP_W4_RFCOMM_DISCONNECTED; 870 rfcomm_disconnect(hfp_connection->rfcomm_cid); 871 break; 872 873 default: 874 break; 875 } 876 } 877 878 static void hfp_ag_slc_established(hfp_connection_t * hfp_connection){ 879 hfp_connection->state = HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED; 880 881 hfp_emit_slc_connection_event(hfp_connection, 0, hfp_connection->acl_handle, hfp_connection->remote_addr); 882 883 // restore volume settings 884 hfp_connection->speaker_gain = hfp_hf_speaker_gain; 885 hfp_connection->send_speaker_gain = 1; 886 hfp_emit_event(hfp_connection, HFP_SUBEVENT_SPEAKER_VOLUME, hfp_hf_speaker_gain); 887 hfp_connection->microphone_gain = hfp_hf_microphone_gain; 888 hfp_connection->send_microphone_gain = 1; 889 hfp_emit_event(hfp_connection, HFP_SUBEVENT_MICROPHONE_VOLUME, hfp_hf_microphone_gain); 890 // enable all indicators 891 int i; 892 for (i=0;i<hfp_indicators_nr;i++){ 893 hfp_connection->generic_status_indicators[i].uuid = hfp_indicators[i]; 894 hfp_connection->generic_status_indicators[i].state = 1; 895 } 896 } 897 898 static void hfp_hf_switch_on_ok(hfp_connection_t *hfp_connection){ 899 hfp_connection->ok_pending = 0; 900 switch (hfp_connection->state){ 901 case HFP_W4_EXCHANGE_SUPPORTED_FEATURES: 902 if (has_codec_negotiation_feature(hfp_connection)){ 903 hfp_connection->state = HFP_NOTIFY_ON_CODECS; 904 break; 905 } 906 hfp_connection->state = HFP_RETRIEVE_INDICATORS; 907 break; 908 909 case HFP_W4_NOTIFY_ON_CODECS: 910 hfp_connection->state = HFP_RETRIEVE_INDICATORS; 911 break; 912 913 case HFP_W4_RETRIEVE_INDICATORS: 914 hfp_connection->state = HFP_RETRIEVE_INDICATORS_STATUS; 915 break; 916 917 case HFP_W4_RETRIEVE_INDICATORS_STATUS: 918 hfp_connection->state = HFP_ENABLE_INDICATORS_STATUS_UPDATE; 919 break; 920 921 case HFP_W4_ENABLE_INDICATORS_STATUS_UPDATE: 922 if (has_call_waiting_and_3way_calling_feature(hfp_connection)){ 923 hfp_connection->state = HFP_RETRIEVE_CAN_HOLD_CALL; 924 break; 925 } 926 if (has_hf_indicators_feature(hfp_connection)){ 927 hfp_connection->state = HFP_LIST_GENERIC_STATUS_INDICATORS; 928 break; 929 } 930 hfp_ag_slc_established(hfp_connection); 931 break; 932 933 case HFP_W4_RETRIEVE_CAN_HOLD_CALL: 934 if (has_hf_indicators_feature(hfp_connection)){ 935 hfp_connection->state = HFP_LIST_GENERIC_STATUS_INDICATORS; 936 break; 937 } 938 hfp_ag_slc_established(hfp_connection); 939 break; 940 941 case HFP_W4_LIST_GENERIC_STATUS_INDICATORS: 942 hfp_connection->state = HFP_RETRIEVE_GENERIC_STATUS_INDICATORS; 943 break; 944 945 case HFP_W4_RETRIEVE_GENERIC_STATUS_INDICATORS: 946 hfp_connection->state = HFP_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS; 947 break; 948 949 case HFP_W4_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS: 950 hfp_ag_slc_established(hfp_connection); 951 break; 952 case HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED: 953 if (hfp_connection->enable_status_update_for_ag_indicators != 0xFF){ 954 hfp_connection->enable_status_update_for_ag_indicators = 0xFF; 955 hfp_emit_event(hfp_connection, HFP_SUBEVENT_COMPLETE, 0); 956 break; 957 } 958 959 if (hfp_connection->change_status_update_for_individual_ag_indicators == 1){ 960 hfp_connection->change_status_update_for_individual_ag_indicators = 0; 961 hfp_emit_event(hfp_connection, HFP_SUBEVENT_COMPLETE, 0); 962 break; 963 } 964 965 switch (hfp_connection->hf_query_operator_state){ 966 case HFP_HF_QUERY_OPERATOR_W4_SET_FORMAT_OK: 967 hfp_connection->hf_query_operator_state = HFP_HF_QUERY_OPERATOR_SEND_QUERY; 968 break; 969 case HPF_HF_QUERY_OPERATOR_W4_RESULT: 970 hfp_connection->hf_query_operator_state = HFP_HF_QUERY_OPERATOR_FORMAT_SET; 971 hfp_emit_network_operator_event(hfp_hf_callback, hfp_connection->network_operator); 972 break; 973 default: 974 break; 975 } 976 977 if (hfp_connection->enable_extended_audio_gateway_error_report){ 978 hfp_connection->enable_extended_audio_gateway_error_report = 0; 979 break; 980 } 981 982 switch (hfp_connection->codecs_state){ 983 case HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE: 984 hfp_connection->codecs_state = HFP_CODECS_W4_AG_COMMON_CODEC; 985 break; 986 case HFP_CODECS_HF_CONFIRMED_CODEC: 987 hfp_connection->codecs_state = HFP_CODECS_EXCHANGED; 988 break; 989 default: 990 break; 991 } 992 break; 993 default: 994 break; 995 } 996 997 // done 998 hfp_connection->command = HFP_CMD_NONE; 999 } 1000 1001 static int hfp_parser_is_end_of_line(uint8_t byte){ 1002 return (byte == '\n') || (byte == '\r'); 1003 } 1004 1005 static void hfp_hf_handle_transfer_ag_indicator_status(hfp_connection_t * hfp_connection) { 1006 uint16_t i; 1007 for (i = 0; i < hfp_connection->ag_indicators_nr; i++){ 1008 if (hfp_connection->ag_indicators[i].status_changed) { 1009 if (strcmp(hfp_connection->ag_indicators[i].name, "callsetup") == 0){ 1010 hfp_callsetup_status = (hfp_callsetup_status_t) hfp_connection->ag_indicators[i].status; 1011 } else if (strcmp(hfp_connection->ag_indicators[i].name, "callheld") == 0){ 1012 hfp_callheld_status = (hfp_callheld_status_t) hfp_connection->ag_indicators[i].status; 1013 // avoid set but not used warning 1014 (void) hfp_callheld_status; 1015 } else if (strcmp(hfp_connection->ag_indicators[i].name, "call") == 0){ 1016 hfp_call_status = (hfp_call_status_t) hfp_connection->ag_indicators[i].status; 1017 } 1018 hfp_connection->ag_indicators[i].status_changed = 0; 1019 hfp_emit_ag_indicator_event(hfp_hf_callback, hfp_connection->ag_indicators[i]); 1020 break; 1021 } 1022 } 1023 } 1024 1025 static void hfp_hf_handle_rfcomm_command(hfp_connection_t * hfp_connection){ 1026 int value; 1027 int i; 1028 switch (hfp_connection->command){ 1029 case HFP_CMD_GET_SUBSCRIBER_NUMBER_INFORMATION: 1030 hfp_connection->command = HFP_CMD_NONE; 1031 hfp_hf_emit_subscriber_information(hfp_hf_callback, HFP_SUBEVENT_SUBSCRIBER_NUMBER_INFORMATION, 0, hfp_connection->bnip_type, hfp_connection->bnip_number); 1032 break; 1033 case HFP_CMD_RESPONSE_AND_HOLD_STATUS: 1034 hfp_connection->command = HFP_CMD_NONE; 1035 hfp_emit_event(hfp_connection, HFP_SUBEVENT_RESPONSE_AND_HOLD_STATUS, btstack_atoi((char *)&hfp_connection->line_buffer[0])); 1036 break; 1037 case HFP_CMD_LIST_CURRENT_CALLS: 1038 hfp_connection->command = HFP_CMD_NONE; 1039 hfp_hf_emit_enhanced_call_status(hfp_hf_callback, hfp_connection); 1040 break; 1041 case HFP_CMD_SET_SPEAKER_GAIN: 1042 hfp_connection->command = HFP_CMD_NONE; 1043 value = btstack_atoi((char*)hfp_connection->line_buffer); 1044 hfp_hf_speaker_gain = value; 1045 hfp_emit_event(hfp_connection, HFP_SUBEVENT_SPEAKER_VOLUME, value); 1046 break; 1047 case HFP_CMD_SET_MICROPHONE_GAIN: 1048 hfp_connection->command = HFP_CMD_NONE; 1049 value = btstack_atoi((char*)hfp_connection->line_buffer); 1050 hfp_hf_microphone_gain = value; 1051 hfp_emit_event(hfp_connection, HFP_SUBEVENT_MICROPHONE_VOLUME, value); 1052 break; 1053 case HFP_CMD_AG_SENT_PHONE_NUMBER: 1054 hfp_connection->command = HFP_CMD_NONE; 1055 hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_NUMBER_FOR_VOICE_TAG, hfp_connection->bnip_number); 1056 break; 1057 case HFP_CMD_AG_SENT_CALL_WAITING_NOTIFICATION_UPDATE: 1058 hfp_connection->command = HFP_CMD_NONE; 1059 hfp_hf_emit_type_and_number(hfp_hf_callback, HFP_SUBEVENT_CALL_WAITING_NOTIFICATION, hfp_connection->bnip_type, hfp_connection->bnip_number); 1060 break; 1061 case HFP_CMD_AG_SENT_CLIP_INFORMATION: 1062 hfp_connection->command = HFP_CMD_NONE; 1063 hfp_hf_emit_type_and_number(hfp_hf_callback, HFP_SUBEVENT_CALLING_LINE_IDENTIFICATION_NOTIFICATION, hfp_connection->bnip_type, hfp_connection->bnip_number); 1064 break; 1065 case HFP_CMD_EXTENDED_AUDIO_GATEWAY_ERROR: 1066 hfp_connection->ok_pending = 0; 1067 hfp_connection->command = HFP_CMD_NONE; 1068 hfp_connection->extended_audio_gateway_error = 0; 1069 hfp_emit_event(hfp_connection, HFP_SUBEVENT_EXTENDED_AUDIO_GATEWAY_ERROR, hfp_connection->extended_audio_gateway_error_value); 1070 break; 1071 case HFP_CMD_ERROR: 1072 hfp_connection->ok_pending = 0; 1073 hfp_reset_context_flags(hfp_connection); 1074 hfp_connection->command = HFP_CMD_NONE; 1075 1076 switch (hfp_connection->state){ 1077 case HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED: 1078 switch (hfp_connection->codecs_state){ 1079 case HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE: 1080 hfp_emit_sco_event(hfp_connection, HFP_REMOTE_REJECTS_AUDIO_CONNECTION, 0, hfp_connection->remote_addr, hfp_connection->negotiated_codec); 1081 return; 1082 default: 1083 break; 1084 } 1085 default: 1086 break; 1087 } 1088 hfp_emit_event(hfp_connection, HFP_SUBEVENT_COMPLETE, 1); 1089 break; 1090 case HFP_CMD_OK: 1091 hfp_hf_switch_on_ok(hfp_connection); 1092 break; 1093 case HFP_CMD_RING: 1094 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_RING); 1095 break; 1096 case HFP_CMD_TRANSFER_AG_INDICATOR_STATUS: 1097 hfp_hf_handle_transfer_ag_indicator_status(hfp_connection); 1098 break; 1099 case HFP_CMD_RETRIEVE_AG_INDICATORS_STATUS: 1100 for (i = 0; i < hfp_connection->ag_indicators_nr; i++){ 1101 hfp_emit_ag_indicator_event(hfp_hf_callback, hfp_connection->ag_indicators[i]); 1102 } 1103 hfp_connection->command = HFP_CMD_NONE; 1104 break; 1105 default: 1106 break; 1107 } 1108 } 1109 1110 static void hfp_hf_handle_rfcomm_data(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 1111 UNUSED(packet_type); // ok: only called with RFCOMM_DATA_PACKET 1112 // assertion: size >= 1 as rfcomm.c does not deliver empty packets 1113 if (size < 1) return; 1114 1115 hfp_connection_t * hfp_connection = get_hfp_connection_context_for_rfcomm_cid(channel); 1116 if (!hfp_connection) return; 1117 1118 hfp_log_rfcomm_message("HFP_HF_RX", packet, size); 1119 1120 // process messages byte-wise 1121 int pos; 1122 for (pos = 0; pos < size; pos++){ 1123 hfp_parse(hfp_connection, packet[pos], 1); 1124 1125 // parse until end of line "\r\n" 1126 if (!hfp_parser_is_end_of_line(packet[pos])) continue; 1127 1128 hfp_hf_handle_rfcomm_command(hfp_connection); 1129 } 1130 hfp_run_for_context(hfp_connection); 1131 } 1132 1133 static void hfp_run(void){ 1134 btstack_linked_list_iterator_t it; 1135 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1136 while (btstack_linked_list_iterator_has_next(&it)){ 1137 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1138 if (hfp_connection->local_role != HFP_ROLE_HF) continue; 1139 hfp_run_for_context(hfp_connection); 1140 } 1141 } 1142 1143 static void rfcomm_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 1144 switch (packet_type){ 1145 case RFCOMM_DATA_PACKET: 1146 hfp_hf_handle_rfcomm_data(packet_type, channel, packet, size); 1147 break; 1148 case HCI_EVENT_PACKET: 1149 if (packet[0] == RFCOMM_EVENT_CAN_SEND_NOW){ 1150 uint16_t rfcomm_cid = rfcomm_event_can_send_now_get_rfcomm_cid(packet); 1151 hfp_run_for_context(get_hfp_connection_context_for_rfcomm_cid(rfcomm_cid)); 1152 return; 1153 } 1154 hfp_handle_rfcomm_event(packet_type, channel, packet, size, HFP_ROLE_HF); 1155 break; 1156 default: 1157 break; 1158 } 1159 hfp_run(); 1160 } 1161 1162 static void hci_event_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 1163 hfp_handle_hci_event(packet_type, channel, packet, size, HFP_ROLE_HF); 1164 1165 // allow for sco established -> ring transition and sco retry 1166 if (packet_type != HCI_EVENT_PACKET) return; 1167 if (hci_event_packet_get_type(packet) != HCI_EVENT_SYNCHRONOUS_CONNECTION_COMPLETE) return; 1168 hfp_run(); 1169 } 1170 1171 void hfp_hf_init(uint16_t rfcomm_channel_nr){ 1172 hfp_init(); 1173 1174 hci_event_callback_registration.callback = &hci_event_packet_handler; 1175 hci_add_event_handler(&hci_event_callback_registration); 1176 1177 rfcomm_register_service(rfcomm_packet_handler, rfcomm_channel_nr, 0xffff); 1178 1179 // used to set packet handler for outgoing rfcomm connections - could be handled by emitting an event to us 1180 hfp_set_hf_rfcomm_packet_handler(&rfcomm_packet_handler); 1181 1182 hfp_set_hf_run_for_context(hfp_run_for_context); 1183 1184 hfp_supported_features = HFP_DEFAULT_HF_SUPPORTED_FEATURES; 1185 hfp_codecs_nr = 0; 1186 hfp_indicators_nr = 0; 1187 hfp_hf_speaker_gain = 9; 1188 hfp_hf_microphone_gain = 9; 1189 } 1190 1191 void hfp_hf_init_codecs(int codecs_nr, uint8_t * codecs){ 1192 if (codecs_nr > HFP_MAX_NUM_CODECS){ 1193 log_error("hfp_hf_init_codecs: codecs_nr (%d) > HFP_MAX_NUM_CODECS (%d)", codecs_nr, HFP_MAX_NUM_CODECS); 1194 return; 1195 } 1196 1197 hfp_codecs_nr = codecs_nr; 1198 int i; 1199 for (i=0; i<codecs_nr; i++){ 1200 hfp_codecs[i] = codecs[i]; 1201 } 1202 } 1203 1204 void hfp_hf_init_supported_features(uint32_t supported_features){ 1205 hfp_supported_features = supported_features; 1206 } 1207 1208 void hfp_hf_init_hf_indicators(int indicators_nr, uint16_t * indicators){ 1209 hfp_indicators_nr = indicators_nr; 1210 int i; 1211 for (i = 0; i < hfp_indicators_nr ; i++){ 1212 hfp_indicators[i] = indicators[i]; 1213 } 1214 } 1215 1216 void hfp_hf_establish_service_level_connection(bd_addr_t bd_addr){ 1217 hfp_establish_service_level_connection(bd_addr, BLUETOOTH_SERVICE_CLASS_HANDSFREE_AUDIO_GATEWAY, HFP_ROLE_HF); 1218 } 1219 1220 void hfp_hf_release_service_level_connection(hci_con_handle_t acl_handle){ 1221 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1222 if (!hfp_connection) { 1223 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1224 return; 1225 } 1226 hfp_release_service_level_connection(hfp_connection); 1227 hfp_run_for_context(hfp_connection); 1228 } 1229 1230 static void hfp_hf_set_status_update_for_all_ag_indicators(hci_con_handle_t acl_handle, uint8_t enable){ 1231 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1232 if (!hfp_connection) { 1233 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1234 return; 1235 } 1236 hfp_connection->enable_status_update_for_ag_indicators = enable; 1237 hfp_run_for_context(hfp_connection); 1238 } 1239 1240 void hfp_hf_enable_status_update_for_all_ag_indicators(hci_con_handle_t acl_handle){ 1241 hfp_hf_set_status_update_for_all_ag_indicators(acl_handle, 1); 1242 } 1243 1244 void hfp_hf_disable_status_update_for_all_ag_indicators(hci_con_handle_t acl_handle){ 1245 hfp_hf_set_status_update_for_all_ag_indicators(acl_handle, 0); 1246 } 1247 1248 // TODO: returned ERROR - wrong format 1249 void hfp_hf_set_status_update_for_individual_ag_indicators(hci_con_handle_t acl_handle, uint32_t indicators_status_bitmap){ 1250 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1251 if (!hfp_connection) { 1252 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1253 return; 1254 } 1255 hfp_connection->change_status_update_for_individual_ag_indicators = 1; 1256 hfp_connection->ag_indicators_status_update_bitmap = indicators_status_bitmap; 1257 hfp_run_for_context(hfp_connection); 1258 } 1259 1260 void hfp_hf_query_operator_selection(hci_con_handle_t acl_handle){ 1261 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1262 if (!hfp_connection) { 1263 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1264 return; 1265 } 1266 switch (hfp_connection->hf_query_operator_state){ 1267 case HFP_HF_QUERY_OPERATOR_FORMAT_NOT_SET: 1268 hfp_connection->hf_query_operator_state = HFP_HF_QUERY_OPERATOR_SET_FORMAT; 1269 break; 1270 case HFP_HF_QUERY_OPERATOR_FORMAT_SET: 1271 hfp_connection->hf_query_operator_state = HFP_HF_QUERY_OPERATOR_SEND_QUERY; 1272 break; 1273 default: 1274 break; 1275 } 1276 hfp_run_for_context(hfp_connection); 1277 } 1278 1279 static void hfp_hf_set_report_extended_audio_gateway_error_result_code(hci_con_handle_t acl_handle, uint8_t enable){ 1280 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1281 if (!hfp_connection) { 1282 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1283 return; 1284 } 1285 hfp_connection->enable_extended_audio_gateway_error_report = enable; 1286 hfp_run_for_context(hfp_connection); 1287 } 1288 1289 1290 void hfp_hf_enable_report_extended_audio_gateway_error_result_code(hci_con_handle_t acl_handle){ 1291 hfp_hf_set_report_extended_audio_gateway_error_result_code(acl_handle, 1); 1292 } 1293 1294 void hfp_hf_disable_report_extended_audio_gateway_error_result_code(hci_con_handle_t acl_handle){ 1295 hfp_hf_set_report_extended_audio_gateway_error_result_code(acl_handle, 0); 1296 } 1297 1298 static uint8_t hfp_hf_esco_s4_supported(hfp_connection_t * hfp_connection){ 1299 return (hfp_connection->remote_supported_features & (1<<HFP_AGSF_ESCO_S4)) && (hfp_supported_features & (1<<HFP_HFSF_ESCO_S4)); 1300 } 1301 1302 void hfp_hf_establish_audio_connection(hci_con_handle_t acl_handle){ 1303 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1304 if (!hfp_connection) { 1305 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1306 return; 1307 } 1308 hfp_connection->establish_audio_connection = 0; 1309 1310 if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED) return; 1311 if (hfp_connection->state >= HFP_W2_DISCONNECT_SCO) return; 1312 1313 hfp_connection->trigger_codec_exchange = 0; 1314 hfp_connection->establish_audio_connection = 1; 1315 if (!has_codec_negotiation_feature(hfp_connection)){ 1316 log_info("hfp_ag_establish_audio_connection - no codec negotiation feature, using defaults"); 1317 hfp_connection->codecs_state = HFP_CODECS_EXCHANGED; 1318 hfp_connection->suggested_codec = HFP_CODEC_CVSD; 1319 hfp_connection->codec_confirmed = hfp_connection->suggested_codec; 1320 hfp_connection->negotiated_codec = hfp_connection->suggested_codec; 1321 hfp_init_link_settings(hfp_connection, hfp_hf_esco_s4_supported(hfp_connection)); 1322 hfp_connection->trigger_codec_exchange = 0; 1323 hfp_connection->state = HFP_W4_SCO_CONNECTED; 1324 } else { 1325 switch (hfp_connection->codecs_state){ 1326 case HFP_CODECS_W4_AG_COMMON_CODEC: 1327 break; 1328 default: 1329 hfp_connection->trigger_codec_exchange = 1; 1330 hfp_connection->command = HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP; 1331 break; 1332 } 1333 } 1334 1335 hfp_run_for_context(hfp_connection); 1336 } 1337 1338 void hfp_hf_release_audio_connection(hci_con_handle_t acl_handle){ 1339 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1340 if (!hfp_connection) { 1341 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1342 return; 1343 } 1344 hfp_release_audio_connection(hfp_connection); 1345 hfp_run_for_context(hfp_connection); 1346 } 1347 1348 void hfp_hf_answer_incoming_call(hci_con_handle_t acl_handle){ 1349 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1350 if (!hfp_connection) { 1351 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1352 return; 1353 } 1354 1355 if (hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS){ 1356 hfp_connection->hf_answer_incoming_call = 1; 1357 hfp_run_for_context(hfp_connection); 1358 } else { 1359 log_error("HFP HF: answering incoming call with wrong callsetup status %u", hfp_callsetup_status); 1360 } 1361 } 1362 1363 void hfp_hf_terminate_call(hci_con_handle_t acl_handle){ 1364 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1365 if (!hfp_connection) { 1366 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1367 return; 1368 } 1369 hfp_connection->hf_send_chup = 1; 1370 hfp_run_for_context(hfp_connection); 1371 } 1372 1373 void hfp_hf_reject_incoming_call(hci_con_handle_t acl_handle){ 1374 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1375 if (!hfp_connection) { 1376 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1377 return; 1378 } 1379 1380 if (hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS){ 1381 hfp_connection->hf_send_chup = 1; 1382 hfp_run_for_context(hfp_connection); 1383 } 1384 } 1385 1386 void hfp_hf_user_busy(hci_con_handle_t acl_handle){ 1387 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1388 if (!hfp_connection) { 1389 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1390 return; 1391 } 1392 1393 if (hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS){ 1394 hfp_connection->hf_send_chld_0 = 1; 1395 hfp_run_for_context(hfp_connection); 1396 } 1397 } 1398 1399 void hfp_hf_end_active_and_accept_other(hci_con_handle_t acl_handle){ 1400 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1401 if (!hfp_connection) { 1402 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1403 return; 1404 } 1405 1406 if ((hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) || 1407 (hfp_call_status == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT)){ 1408 hfp_connection->hf_send_chld_1 = 1; 1409 hfp_run_for_context(hfp_connection); 1410 } 1411 } 1412 1413 void hfp_hf_swap_calls(hci_con_handle_t acl_handle){ 1414 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1415 if (!hfp_connection) { 1416 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1417 return; 1418 } 1419 1420 if ((hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) || 1421 (hfp_call_status == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT)){ 1422 hfp_connection->hf_send_chld_2 = 1; 1423 hfp_run_for_context(hfp_connection); 1424 } 1425 } 1426 1427 void hfp_hf_join_held_call(hci_con_handle_t acl_handle){ 1428 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1429 if (!hfp_connection) { 1430 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1431 return; 1432 } 1433 1434 if ((hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) || 1435 (hfp_call_status == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT)){ 1436 hfp_connection->hf_send_chld_3 = 1; 1437 hfp_run_for_context(hfp_connection); 1438 } 1439 } 1440 1441 void hfp_hf_connect_calls(hci_con_handle_t acl_handle){ 1442 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1443 if (!hfp_connection) { 1444 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1445 return; 1446 } 1447 1448 if ((hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) || 1449 (hfp_call_status == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT)){ 1450 hfp_connection->hf_send_chld_4 = 1; 1451 hfp_run_for_context(hfp_connection); 1452 } 1453 } 1454 1455 void hfp_hf_release_call_with_index(hci_con_handle_t acl_handle, int index){ 1456 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1457 if (!hfp_connection) { 1458 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1459 return; 1460 } 1461 1462 if ((hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) || 1463 (hfp_call_status == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT)){ 1464 hfp_connection->hf_send_chld_x = 1; 1465 hfp_connection->hf_send_chld_x_index = 10 + index; 1466 hfp_run_for_context(hfp_connection); 1467 } 1468 } 1469 1470 void hfp_hf_private_consultation_with_call(hci_con_handle_t acl_handle, int index){ 1471 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1472 if (!hfp_connection) { 1473 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1474 return; 1475 } 1476 1477 if ((hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) || 1478 (hfp_call_status == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT)){ 1479 hfp_connection->hf_send_chld_x = 1; 1480 hfp_connection->hf_send_chld_x_index = 20 + index; 1481 hfp_run_for_context(hfp_connection); 1482 } 1483 } 1484 1485 void hfp_hf_dial_number(hci_con_handle_t acl_handle, char * number){ 1486 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1487 if (!hfp_connection) { 1488 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1489 return; 1490 } 1491 1492 hfp_connection->hf_initiate_outgoing_call = 1; 1493 snprintf(phone_number, sizeof(phone_number), "%s", number); 1494 hfp_run_for_context(hfp_connection); 1495 } 1496 1497 void hfp_hf_dial_memory(hci_con_handle_t acl_handle, int memory_id){ 1498 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1499 if (!hfp_connection) { 1500 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1501 return; 1502 } 1503 1504 hfp_connection->hf_initiate_memory_dialing = 1; 1505 hfp_connection->memory_id = memory_id; 1506 1507 hfp_run_for_context(hfp_connection); 1508 } 1509 1510 void hfp_hf_redial_last_number(hci_con_handle_t acl_handle){ 1511 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1512 if (!hfp_connection) { 1513 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1514 return; 1515 } 1516 1517 hfp_connection->hf_initiate_redial_last_number = 1; 1518 hfp_run_for_context(hfp_connection); 1519 } 1520 1521 void hfp_hf_activate_call_waiting_notification(hci_con_handle_t acl_handle){ 1522 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1523 if (!hfp_connection) { 1524 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1525 return; 1526 } 1527 1528 hfp_connection->hf_activate_call_waiting_notification = 1; 1529 hfp_run_for_context(hfp_connection); 1530 } 1531 1532 1533 void hfp_hf_deactivate_call_waiting_notification(hci_con_handle_t acl_handle){ 1534 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1535 if (!hfp_connection) { 1536 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1537 return; 1538 } 1539 1540 hfp_connection->hf_deactivate_call_waiting_notification = 1; 1541 hfp_run_for_context(hfp_connection); 1542 } 1543 1544 1545 void hfp_hf_activate_calling_line_notification(hci_con_handle_t acl_handle){ 1546 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1547 if (!hfp_connection) { 1548 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1549 return; 1550 } 1551 1552 hfp_connection->hf_activate_calling_line_notification = 1; 1553 hfp_run_for_context(hfp_connection); 1554 } 1555 1556 void hfp_hf_deactivate_calling_line_notification(hci_con_handle_t acl_handle){ 1557 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1558 if (!hfp_connection) { 1559 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1560 return; 1561 } 1562 1563 hfp_connection->hf_deactivate_calling_line_notification = 1; 1564 hfp_run_for_context(hfp_connection); 1565 } 1566 1567 1568 void hfp_hf_activate_echo_canceling_and_noise_reduction(hci_con_handle_t acl_handle){ 1569 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1570 if (!hfp_connection) { 1571 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1572 return; 1573 } 1574 1575 hfp_connection->hf_activate_echo_canceling_and_noise_reduction = 1; 1576 hfp_run_for_context(hfp_connection); 1577 } 1578 1579 void hfp_hf_deactivate_echo_canceling_and_noise_reduction(hci_con_handle_t acl_handle){ 1580 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1581 if (!hfp_connection) { 1582 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1583 return; 1584 } 1585 1586 hfp_connection->hf_deactivate_echo_canceling_and_noise_reduction = 1; 1587 hfp_run_for_context(hfp_connection); 1588 } 1589 1590 void hfp_hf_activate_voice_recognition_notification(hci_con_handle_t acl_handle){ 1591 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1592 if (!hfp_connection) { 1593 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1594 return; 1595 } 1596 1597 hfp_connection->hf_activate_voice_recognition_notification = 1; 1598 hfp_run_for_context(hfp_connection); 1599 } 1600 1601 void hfp_hf_deactivate_voice_recognition_notification(hci_con_handle_t acl_handle){ 1602 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1603 if (!hfp_connection) { 1604 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1605 return; 1606 } 1607 1608 hfp_connection->hf_deactivate_voice_recognition_notification = 1; 1609 hfp_run_for_context(hfp_connection); 1610 } 1611 1612 void hfp_hf_set_microphone_gain(hci_con_handle_t acl_handle, int gain){ 1613 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1614 if (!hfp_connection) { 1615 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1616 return; 1617 } 1618 1619 if (hfp_connection->microphone_gain == gain) return; 1620 if ((gain < 0) || (gain > 15)){ 1621 log_info("Valid range for a gain is [0..15]. Currently sent: %d", gain); 1622 return; 1623 } 1624 hfp_connection->microphone_gain = gain; 1625 hfp_connection->send_microphone_gain = 1; 1626 hfp_run_for_context(hfp_connection); 1627 } 1628 1629 void hfp_hf_set_speaker_gain(hci_con_handle_t acl_handle, int gain){ 1630 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1631 if (!hfp_connection) { 1632 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1633 return; 1634 } 1635 1636 if (hfp_connection->speaker_gain == gain) return; 1637 if ((gain < 0) || (gain > 15)){ 1638 log_info("Valid range for a gain is [0..15]. Currently sent: %d", gain); 1639 return; 1640 } 1641 hfp_connection->speaker_gain = gain; 1642 hfp_connection->send_speaker_gain = 1; 1643 hfp_run_for_context(hfp_connection); 1644 } 1645 1646 void hfp_hf_send_dtmf_code(hci_con_handle_t acl_handle, char code){ 1647 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1648 if (!hfp_connection) { 1649 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1650 return; 1651 } 1652 1653 hfp_connection->hf_send_dtmf_code = code; 1654 hfp_run_for_context(hfp_connection); 1655 } 1656 1657 void hfp_hf_request_phone_number_for_voice_tag(hci_con_handle_t acl_handle){ 1658 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1659 if (!hfp_connection) { 1660 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1661 return; 1662 } 1663 hfp_connection->hf_send_binp = 1; 1664 hfp_run_for_context(hfp_connection); 1665 } 1666 1667 void hfp_hf_query_current_call_status(hci_con_handle_t acl_handle){ 1668 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1669 if (!hfp_connection) { 1670 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1671 return; 1672 } 1673 hfp_connection->hf_send_clcc = 1; 1674 hfp_run_for_context(hfp_connection); 1675 } 1676 1677 1678 void hfp_hf_rrh_query_status(hci_con_handle_t acl_handle){ 1679 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1680 if (!hfp_connection) { 1681 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1682 return; 1683 } 1684 hfp_connection->hf_send_rrh = 1; 1685 hfp_connection->hf_send_rrh_command = '?'; 1686 hfp_run_for_context(hfp_connection); 1687 } 1688 1689 void hfp_hf_rrh_hold_call(hci_con_handle_t acl_handle){ 1690 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1691 if (!hfp_connection) { 1692 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1693 return; 1694 } 1695 hfp_connection->hf_send_rrh = 1; 1696 hfp_connection->hf_send_rrh_command = '0'; 1697 hfp_run_for_context(hfp_connection); 1698 } 1699 1700 void hfp_hf_rrh_accept_held_call(hci_con_handle_t acl_handle){ 1701 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1702 if (!hfp_connection) { 1703 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1704 return; 1705 } 1706 hfp_connection->hf_send_rrh = 1; 1707 hfp_connection->hf_send_rrh_command = '1'; 1708 hfp_run_for_context(hfp_connection); 1709 } 1710 1711 void hfp_hf_rrh_reject_held_call(hci_con_handle_t acl_handle){ 1712 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1713 if (!hfp_connection) { 1714 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1715 return; 1716 } 1717 hfp_connection->hf_send_rrh = 1; 1718 hfp_connection->hf_send_rrh_command = '2'; 1719 hfp_run_for_context(hfp_connection); 1720 } 1721 1722 void hfp_hf_query_subscriber_number(hci_con_handle_t acl_handle){ 1723 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1724 if (!hfp_connection) { 1725 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1726 return; 1727 } 1728 hfp_connection->hf_send_cnum = 1; 1729 hfp_run_for_context(hfp_connection); 1730 } 1731 1732 void hfp_hf_set_hf_indicator(hci_con_handle_t acl_handle, int assigned_number, int value){ 1733 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1734 if (!hfp_connection) { 1735 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1736 return; 1737 } 1738 // find index for assigned number 1739 int i; 1740 for (i = 0; i < hfp_indicators_nr ; i++){ 1741 if (hfp_indicators[i] == assigned_number){ 1742 // set value 1743 hfp_indicators_value[i] = value; 1744 // mark for update 1745 if (hfp_connection->state > HFP_LIST_GENERIC_STATUS_INDICATORS){ 1746 hfp_connection->generic_status_update_bitmap |= (1<<i); 1747 // send update 1748 hfp_run_for_context(hfp_connection); 1749 } 1750 return; 1751 } 1752 } 1753 } 1754 1755 int hfp_hf_in_band_ringtone_active(hci_con_handle_t acl_handle){ 1756 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1757 if (!hfp_connection) { 1758 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1759 return 0; 1760 } 1761 return get_bit(hfp_connection->remote_supported_features, HFP_AGSF_IN_BAND_RING_TONE); 1762 } 1763