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 <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 53 #include "bluetooth_sdp.h" 54 #include "btstack_debug.h" 55 #include "btstack_event.h" 56 #include "btstack_memory.h" 57 #include "btstack_run_loop.h" 58 #include "classic/core.h" 59 #include "classic/hfp.h" 60 #include "classic/hfp_hf.h" 61 #include "classic/sdp_client_rfcomm.h" 62 #include "classic/sdp_server.h" 63 #include "classic/sdp_util.h" 64 #include "hci.h" 65 #include "hci_cmd.h" 66 #include "hci_dump.h" 67 #include "l2cap.h" 68 69 static btstack_packet_callback_registration_t hci_event_callback_registration; 70 71 static const char default_hfp_hf_service_name[] = "Hands-Free unit"; 72 static uint16_t hfp_supported_features = HFP_DEFAULT_HF_SUPPORTED_FEATURES; 73 static uint8_t hfp_codecs_nr = 0; 74 static uint8_t hfp_codecs[HFP_MAX_NUM_CODECS]; 75 76 static uint8_t hfp_indicators_nr = 0; 77 static uint8_t hfp_indicators[HFP_MAX_NUM_HF_INDICATORS]; 78 static uint32_t hfp_indicators_value[HFP_MAX_NUM_HF_INDICATORS]; 79 80 static uint8_t hfp_hf_speaker_gain = 9; 81 static uint8_t hfp_hf_microphone_gain = 9; 82 83 static btstack_packet_handler_t hfp_hf_callback; 84 85 static hfp_call_status_t hfp_call_status; 86 static hfp_callsetup_status_t hfp_callsetup_status; 87 static hfp_callheld_status_t hfp_callheld_status; 88 89 static char phone_number[25]; 90 91 static hfp_connection_t * get_hfp_hf_connection_context_for_acl_handle(uint16_t handle){ 92 btstack_linked_list_iterator_t it; 93 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 94 while (btstack_linked_list_iterator_has_next(&it)){ 95 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 96 if (hfp_connection->acl_handle != handle) continue; 97 if (hfp_connection->local_role != HFP_ROLE_HF) continue; 98 return hfp_connection; 99 } 100 return NULL; 101 } 102 103 void hfp_hf_register_packet_handler(btstack_packet_handler_t callback){ 104 if (callback == NULL){ 105 log_error("hfp_hf_register_packet_handler called with NULL callback"); 106 return; 107 } 108 hfp_hf_callback = callback; 109 hfp_set_hf_callback(callback); 110 } 111 112 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){ 113 if (!callback) return; 114 uint8_t event[31]; 115 event[0] = HCI_EVENT_HFP_META; 116 event[1] = sizeof(event) - 2; 117 event[2] = event_subtype; 118 event[3] = status; 119 event[4] = bnip_type; 120 uint16_t size = btstack_min(strlen(bnip_number), sizeof(event) - 6); 121 strncpy((char*)&event[5], bnip_number, size); 122 event[5 + size] = 0; 123 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 124 } 125 126 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){ 127 if (!callback) return; 128 uint8_t event[30]; 129 event[0] = HCI_EVENT_HFP_META; 130 event[1] = sizeof(event) - 2; 131 event[2] = event_subtype; 132 event[3] = bnip_type; 133 uint16_t size = btstack_min(strlen(bnip_number), sizeof(event) - 5); 134 strncpy((char*)&event[4], bnip_number, size); 135 event[4 + size] = 0; 136 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 137 } 138 139 static void hfp_hf_emit_enhanced_call_status(btstack_packet_handler_t callback, hfp_connection_t * connection){ 140 if (!callback) return; 141 printf("hfp_hf_emit_enhanced_call_status: %s \n", connection->bnip_number); 142 uint8_t event[36]; 143 int pos = 0; 144 event[pos++] = HCI_EVENT_HFP_META; 145 event[pos++] = sizeof(event) - 2; 146 event[pos++] = HFP_SUBEVENT_ENHANCED_CALL_STATUS; 147 event[pos++] = connection->clcc_idx; 148 event[pos++] = connection->clcc_dir; 149 event[pos++] = connection->clcc_status; 150 event[pos++] = connection->clcc_mode; 151 event[pos++] = connection->clcc_mpty; 152 event[pos++] = connection->bnip_type; 153 uint16_t size = btstack_min(strlen(connection->bnip_number), sizeof(event) - pos); 154 strncpy((char*)&event[pos], connection->bnip_number, size); 155 pos += size; 156 event[pos++] = 0; 157 (*callback)(HCI_EVENT_PACKET, 0, event, pos); 158 } 159 160 static int has_codec_negotiation_feature(hfp_connection_t * hfp_connection){ 161 int hf = get_bit(hfp_supported_features, HFP_HFSF_CODEC_NEGOTIATION); 162 int ag = get_bit(hfp_connection->remote_supported_features, HFP_AGSF_CODEC_NEGOTIATION); 163 return hf && ag; 164 } 165 166 static int has_call_waiting_and_3way_calling_feature(hfp_connection_t * hfp_connection){ 167 int hf = get_bit(hfp_supported_features, HFP_HFSF_THREE_WAY_CALLING); 168 int ag = get_bit(hfp_connection->remote_supported_features, HFP_AGSF_THREE_WAY_CALLING); 169 return hf && ag; 170 } 171 172 173 static int has_hf_indicators_feature(hfp_connection_t * hfp_connection){ 174 int hf = get_bit(hfp_supported_features, HFP_HFSF_HF_INDICATORS); 175 int ag = get_bit(hfp_connection->remote_supported_features, HFP_AGSF_HF_INDICATORS); 176 return hf && ag; 177 } 178 179 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){ 180 if (!name){ 181 name = default_hfp_hf_service_name; 182 } 183 hfp_create_sdp_record(service, service_record_handle, BLUETOOTH_SERVICE_CLASS_HANDSFREE, rfcomm_channel_nr, name); 184 185 // Construct SupportedFeatures for SDP bitmap: 186 // 187 // "The values of the “SupportedFeatures” bitmap given in Table 5.4 shall be the same as the values 188 // of the Bits 0 to 4 of the unsolicited result code +BRSF" 189 // 190 // Wide band speech (bit 5) requires Codec negotiation 191 // 192 uint16_t sdp_features = supported_features & 0x1f; 193 if (wide_band_speech && (supported_features & (1 << HFP_HFSF_CODEC_NEGOTIATION))){ 194 sdp_features |= 1 << 5; 195 } 196 de_add_number(service, DE_UINT, DE_SIZE_16, 0x0311); // Hands-Free Profile - SupportedFeatures 197 de_add_number(service, DE_UINT, DE_SIZE_16, sdp_features); 198 } 199 200 201 static inline int hfp_hf_send_cmd(uint16_t cid, const char * cmd){ 202 char buffer[20]; 203 snprintf(buffer, sizeof(buffer), "AT%s\r\n", cmd); 204 return send_str_over_rfcomm(cid, buffer); 205 } 206 207 static inline int hfp_hf_send_cmd_with_mark(uint16_t cid, const char * cmd, const char * mark){ 208 char buffer[20]; 209 snprintf(buffer, sizeof(buffer), "AT%s%s\r\n", cmd, mark); 210 return send_str_over_rfcomm(cid, buffer); 211 } 212 213 static inline int hfp_hf_send_cmd_with_int(uint16_t cid, const char * cmd, uint16_t value){ 214 char buffer[40]; 215 snprintf(buffer, sizeof(buffer), "AT%s=%d\r\n", cmd, value); 216 return send_str_over_rfcomm(cid, buffer); 217 } 218 219 static int hfp_hf_cmd_notify_on_codecs(uint16_t cid){ 220 char buffer[30]; 221 const int size = sizeof(buffer); 222 int offset = snprintf(buffer, size, "AT%s=", HFP_AVAILABLE_CODECS); 223 offset += join(buffer+offset, size-offset, hfp_codecs, hfp_codecs_nr); 224 offset += snprintf(buffer+offset, size-offset, "\r\n"); 225 return send_str_over_rfcomm(cid, buffer); 226 } 227 228 static int hfp_hf_cmd_activate_status_update_for_ag_indicator(uint16_t cid, uint32_t indicators_status, int indicators_nr){ 229 char buffer[50]; 230 const int size = sizeof(buffer); 231 int offset = snprintf(buffer, size, "AT%s=", HFP_UPDATE_ENABLE_STATUS_FOR_INDIVIDUAL_AG_INDICATORS); 232 offset += join_bitmap(buffer+offset, size-offset, indicators_status, indicators_nr); 233 offset += snprintf(buffer+offset, size-offset, "\r\n"); 234 return send_str_over_rfcomm(cid, buffer); 235 } 236 237 static int hfp_hf_cmd_list_supported_generic_status_indicators(uint16_t cid){ 238 char buffer[30]; 239 const int size = sizeof(buffer); 240 int offset = snprintf(buffer, size, "AT%s=", HFP_GENERIC_STATUS_INDICATOR); 241 offset += join(buffer+offset, size-offset, hfp_indicators, hfp_indicators_nr); 242 offset += snprintf(buffer+offset, size-offset, "\r\n"); 243 return send_str_over_rfcomm(cid, buffer); 244 } 245 246 static int hfp_hf_cmd_activate_status_update_for_all_ag_indicators(uint16_t cid, uint8_t activate){ 247 char buffer[20]; 248 snprintf(buffer, sizeof(buffer), "AT%s=3,0,0,%d\r\n", HFP_ENABLE_STATUS_UPDATE_FOR_AG_INDICATORS, activate); 249 return send_str_over_rfcomm(cid, buffer); 250 } 251 252 static int hfp_hf_initiate_outgoing_call_cmd(uint16_t cid){ 253 char buffer[40]; 254 snprintf(buffer, sizeof(buffer), "%s%s;\r\n", HFP_CALL_PHONE_NUMBER, phone_number); 255 return send_str_over_rfcomm(cid, buffer); 256 } 257 258 static int hfp_hf_send_memory_dial_cmd(uint16_t cid, int memory_id){ 259 char buffer[40]; 260 snprintf(buffer, sizeof(buffer), "%s>%d;\r\n", HFP_CALL_PHONE_NUMBER, memory_id); 261 return send_str_over_rfcomm(cid, buffer); 262 } 263 264 static int hfp_hf_send_chld(uint16_t cid, unsigned int number){ 265 char buffer[40]; 266 snprintf(buffer, sizeof(buffer), "AT%s=%u\r\n", HFP_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES, number); 267 return send_str_over_rfcomm(cid, buffer); 268 } 269 270 static int hfp_hf_send_dtmf(uint16_t cid, char code){ 271 char buffer[20]; 272 snprintf(buffer, sizeof(buffer), "AT%s=%c\r\n", HFP_TRANSMIT_DTMF_CODES, code); 273 return send_str_over_rfcomm(cid, buffer); 274 } 275 276 static int hfp_hf_cmd_ata(uint16_t cid){ 277 return send_str_over_rfcomm(cid, (char *) "ATA\r\n"); 278 } 279 280 static int hfp_hf_cmd_exchange_supported_features(uint16_t cid){ 281 return hfp_hf_send_cmd_with_int(cid, HFP_SUPPORTED_FEATURES, hfp_supported_features); 282 } 283 284 static int hfp_hf_cmd_retrieve_indicators(uint16_t cid){ 285 return hfp_hf_send_cmd_with_mark(cid, HFP_INDICATOR, "=?"); 286 } 287 288 static int hfp_hf_cmd_retrieve_indicators_status(uint16_t cid){ 289 return hfp_hf_send_cmd_with_mark(cid, HFP_INDICATOR, "?"); 290 } 291 292 static int hfp_hf_cmd_retrieve_can_hold_call(uint16_t cid){ 293 return hfp_hf_send_cmd_with_mark(cid, HFP_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES, "=?"); 294 } 295 296 static int hfp_hf_cmd_retrieve_supported_generic_status_indicators(uint16_t cid){ 297 return hfp_hf_send_cmd_with_mark(cid, HFP_GENERIC_STATUS_INDICATOR, "=?"); 298 } 299 300 static int hfp_hf_cmd_list_initital_supported_generic_status_indicators(uint16_t cid){ 301 return hfp_hf_send_cmd_with_mark(cid, HFP_GENERIC_STATUS_INDICATOR, "?"); 302 } 303 304 static int hfp_hf_cmd_query_operator_name_format(uint16_t cid){ 305 return hfp_hf_send_cmd_with_mark(cid, HFP_QUERY_OPERATOR_SELECTION, "=3,0"); 306 } 307 308 static int hfp_hf_cmd_query_operator_name(uint16_t cid){ 309 return hfp_hf_send_cmd_with_mark(cid, HFP_QUERY_OPERATOR_SELECTION, "?"); 310 } 311 312 static int hfp_hf_cmd_trigger_codec_connection_setup(uint16_t cid){ 313 return hfp_hf_send_cmd(cid, HFP_TRIGGER_CODEC_CONNECTION_SETUP); 314 } 315 316 static int hfp_hf_set_microphone_gain_cmd(uint16_t cid, int gain){ 317 return hfp_hf_send_cmd_with_int(cid, HFP_SET_MICROPHONE_GAIN, gain); 318 } 319 320 static int hfp_hf_set_speaker_gain_cmd(uint16_t cid, int gain){ 321 return hfp_hf_send_cmd_with_int(cid, HFP_SET_SPEAKER_GAIN, gain); 322 } 323 324 static int hfp_hf_set_calling_line_notification_cmd(uint16_t cid, uint8_t activate){ 325 return hfp_hf_send_cmd_with_int(cid, HFP_ENABLE_CLIP, activate); 326 } 327 328 static int hfp_hf_set_echo_canceling_and_noise_reduction_cmd(uint16_t cid, uint8_t activate){ 329 return hfp_hf_send_cmd_with_int(cid, HFP_TURN_OFF_EC_AND_NR, activate); 330 } 331 332 static int hfp_hf_set_voice_recognition_notification_cmd(uint16_t cid, uint8_t activate){ 333 return hfp_hf_send_cmd_with_int(cid, HFP_ACTIVATE_VOICE_RECOGNITION, activate); 334 } 335 336 static int hfp_hf_set_call_waiting_notification_cmd(uint16_t cid, uint8_t activate){ 337 return hfp_hf_send_cmd_with_int(cid, HFP_ENABLE_CALL_WAITING_NOTIFICATION, activate); 338 } 339 340 static int hfp_hf_cmd_confirm_codec(uint16_t cid, uint8_t codec){ 341 return hfp_hf_send_cmd_with_int(cid, HFP_CONFIRM_COMMON_CODEC, codec); 342 } 343 344 static int hfp_hf_cmd_enable_extended_audio_gateway_error_report(uint16_t cid, uint8_t enable){ 345 return hfp_hf_send_cmd_with_int(cid, HFP_ENABLE_EXTENDED_AUDIO_GATEWAY_ERROR, enable); 346 } 347 348 static int hfp_hf_send_redial_last_number_cmd(uint16_t cid){ 349 return hfp_hf_send_cmd(cid, HFP_REDIAL_LAST_NUMBER); 350 } 351 352 static int hfp_hf_send_chup(uint16_t cid){ 353 return hfp_hf_send_cmd(cid, HFP_HANG_UP_CALL); 354 } 355 356 static int hfp_hf_send_binp(uint16_t cid){ 357 return hfp_hf_send_cmd_with_mark(cid, HFP_PHONE_NUMBER_FOR_VOICE_TAG, "=1"); 358 } 359 360 static int hfp_hf_send_clcc(uint16_t cid){ 361 return hfp_hf_send_cmd(cid, HFP_LIST_CURRENT_CALLS); 362 } 363 364 static void hfp_emit_ag_indicator_event(btstack_packet_handler_t callback, hfp_ag_indicator_t indicator){ 365 if (!callback) return; 366 uint8_t event[10+HFP_MAX_INDICATOR_DESC_SIZE+1]; 367 int pos = 0; 368 event[pos++] = HCI_EVENT_HFP_META; 369 event[pos++] = sizeof(event) - 2; 370 event[pos++] = HFP_SUBEVENT_AG_INDICATOR_STATUS_CHANGED; 371 event[pos++] = indicator.index; 372 event[pos++] = indicator.status; 373 event[pos++] = indicator.min_range; 374 event[pos++] = indicator.max_range; 375 event[pos++] = indicator.mandatory; 376 event[pos++] = indicator.enabled; 377 event[pos++] = indicator.status_changed; 378 strncpy((char*)&event[pos], indicator.name, HFP_MAX_INDICATOR_DESC_SIZE); 379 pos += HFP_MAX_INDICATOR_DESC_SIZE; 380 event[pos] = 0; 381 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 382 } 383 384 static void hfp_emit_network_operator_event(btstack_packet_handler_t callback, hfp_network_opearator_t network_operator){ 385 if (!callback) return; 386 uint8_t event[5+HFP_MAX_NETWORK_OPERATOR_NAME_SIZE+1]; 387 event[0] = HCI_EVENT_HFP_META; 388 event[1] = sizeof(event) - 2; 389 event[2] = HFP_SUBEVENT_NETWORK_OPERATOR_CHANGED; 390 event[3] = network_operator.mode; 391 event[4] = network_operator.format; 392 strncpy((char*)&event[5], network_operator.name, HFP_MAX_NETWORK_OPERATOR_NAME_SIZE); 393 event[5+HFP_MAX_NETWORK_OPERATOR_NAME_SIZE] = 0; 394 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 395 } 396 397 static int hfp_hf_run_for_context_service_level_connection(hfp_connection_t * hfp_connection){ 398 if (hfp_connection->state >= HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) return 0; 399 if (hfp_connection->ok_pending) return 0; 400 int done = 1; 401 402 switch (hfp_connection->state){ 403 case HFP_EXCHANGE_SUPPORTED_FEATURES: 404 hfp_hf_drop_mSBC_if_eSCO_not_supported(hfp_codecs, &hfp_codecs_nr); 405 hfp_connection->state = HFP_W4_EXCHANGE_SUPPORTED_FEATURES; 406 hfp_hf_cmd_exchange_supported_features(hfp_connection->rfcomm_cid); 407 break; 408 case HFP_NOTIFY_ON_CODECS: 409 hfp_connection->state = HFP_W4_NOTIFY_ON_CODECS; 410 hfp_hf_cmd_notify_on_codecs(hfp_connection->rfcomm_cid); 411 break; 412 case HFP_RETRIEVE_INDICATORS: 413 hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS; 414 hfp_hf_cmd_retrieve_indicators(hfp_connection->rfcomm_cid); 415 break; 416 case HFP_RETRIEVE_INDICATORS_STATUS: 417 hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS_STATUS; 418 hfp_hf_cmd_retrieve_indicators_status(hfp_connection->rfcomm_cid); 419 break; 420 case HFP_ENABLE_INDICATORS_STATUS_UPDATE: 421 hfp_connection->state = HFP_W4_ENABLE_INDICATORS_STATUS_UPDATE; 422 hfp_hf_cmd_activate_status_update_for_all_ag_indicators(hfp_connection->rfcomm_cid, 1); 423 break; 424 case HFP_RETRIEVE_CAN_HOLD_CALL: 425 hfp_connection->state = HFP_W4_RETRIEVE_CAN_HOLD_CALL; 426 hfp_hf_cmd_retrieve_can_hold_call(hfp_connection->rfcomm_cid); 427 break; 428 case HFP_LIST_GENERIC_STATUS_INDICATORS: 429 hfp_connection->state = HFP_W4_LIST_GENERIC_STATUS_INDICATORS; 430 hfp_hf_cmd_list_supported_generic_status_indicators(hfp_connection->rfcomm_cid); 431 break; 432 case HFP_RETRIEVE_GENERIC_STATUS_INDICATORS: 433 hfp_connection->state = HFP_W4_RETRIEVE_GENERIC_STATUS_INDICATORS; 434 hfp_hf_cmd_retrieve_supported_generic_status_indicators(hfp_connection->rfcomm_cid); 435 break; 436 case HFP_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS: 437 hfp_connection->state = HFP_W4_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS; 438 hfp_hf_cmd_list_initital_supported_generic_status_indicators(hfp_connection->rfcomm_cid); 439 break; 440 default: 441 done = 0; 442 break; 443 } 444 return done; 445 } 446 447 448 static int hfp_hf_run_for_context_service_level_connection_queries(hfp_connection_t * hfp_connection){ 449 if (hfp_connection->state != HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) return 0; 450 if (hfp_connection->ok_pending) return 0; 451 452 int done = 0; 453 if (hfp_connection->enable_status_update_for_ag_indicators != 0xFF){ 454 hfp_connection->ok_pending = 1; 455 done = 1; 456 hfp_hf_cmd_activate_status_update_for_all_ag_indicators(hfp_connection->rfcomm_cid, hfp_connection->enable_status_update_for_ag_indicators); 457 return done; 458 }; 459 if (hfp_connection->change_status_update_for_individual_ag_indicators){ 460 hfp_connection->ok_pending = 1; 461 done = 1; 462 hfp_hf_cmd_activate_status_update_for_ag_indicator(hfp_connection->rfcomm_cid, 463 hfp_connection->ag_indicators_status_update_bitmap, 464 hfp_connection->ag_indicators_nr); 465 return done; 466 } 467 468 switch (hfp_connection->hf_query_operator_state){ 469 case HFP_HF_QUERY_OPERATOR_SET_FORMAT: 470 hfp_connection->hf_query_operator_state = HFP_HF_QUERY_OPERATOR_W4_SET_FORMAT_OK; 471 hfp_connection->ok_pending = 1; 472 hfp_hf_cmd_query_operator_name_format(hfp_connection->rfcomm_cid); 473 return 1; 474 case HFP_HF_QUERY_OPERATOR_SEND_QUERY: 475 hfp_connection->hf_query_operator_state = HPF_HF_QUERY_OPERATOR_W4_RESULT; 476 hfp_connection->ok_pending = 1; 477 hfp_hf_cmd_query_operator_name(hfp_connection->rfcomm_cid); 478 return 1; 479 default: 480 break; 481 } 482 483 if (hfp_connection->enable_extended_audio_gateway_error_report){ 484 hfp_connection->ok_pending = 1; 485 done = 1; 486 hfp_hf_cmd_enable_extended_audio_gateway_error_report(hfp_connection->rfcomm_cid, hfp_connection->enable_extended_audio_gateway_error_report); 487 return done; 488 } 489 490 return done; 491 } 492 493 static int codecs_exchange_state_machine(hfp_connection_t * hfp_connection){ 494 /* events ( == commands): 495 HFP_CMD_AVAILABLE_CODECS == received AT+BAC with list of codecs 496 HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP: 497 hf_trigger_codec_connection_setup == received BCC 498 ag_trigger_codec_connection_setup == received from AG to send BCS 499 HFP_CMD_HF_CONFIRMED_CODEC == received AT+BCS 500 */ 501 502 if (hfp_connection->ok_pending) return 0; 503 504 switch (hfp_connection->command){ 505 case HFP_CMD_AVAILABLE_CODECS: 506 if (hfp_connection->codecs_state == HFP_CODECS_W4_AG_COMMON_CODEC) return 0; 507 508 hfp_connection->codecs_state = HFP_CODECS_W4_AG_COMMON_CODEC; 509 hfp_connection->ok_pending = 1; 510 hfp_hf_cmd_notify_on_codecs(hfp_connection->rfcomm_cid); 511 return 1; 512 case HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP: 513 hfp_connection->codec_confirmed = 0; 514 hfp_connection->suggested_codec = 0; 515 hfp_connection->negotiated_codec = 0; 516 517 hfp_connection->codecs_state = HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE; 518 hfp_connection->ok_pending = 1; 519 hfp_hf_cmd_trigger_codec_connection_setup(hfp_connection->rfcomm_cid); 520 break; 521 522 case HFP_CMD_AG_SUGGESTED_CODEC:{ 523 if (hfp_supports_codec(hfp_connection->suggested_codec, hfp_codecs_nr, hfp_codecs)){ 524 hfp_connection->codec_confirmed = hfp_connection->suggested_codec; 525 hfp_connection->ok_pending = 1; 526 hfp_connection->codecs_state = HFP_CODECS_HF_CONFIRMED_CODEC; 527 hfp_connection->negotiated_codec = hfp_connection->suggested_codec; 528 log_info("hfp: codec confirmed: %s", (hfp_connection->negotiated_codec == HFP_CODEC_MSBC) ? "mSBC" : "CVSD"); 529 hfp_hf_cmd_confirm_codec(hfp_connection->rfcomm_cid, hfp_connection->codec_confirmed); 530 } else { 531 hfp_connection->codec_confirmed = 0; 532 hfp_connection->suggested_codec = 0; 533 hfp_connection->negotiated_codec = 0; 534 hfp_connection->codecs_state = HFP_CODECS_W4_AG_COMMON_CODEC; 535 hfp_connection->ok_pending = 1; 536 hfp_hf_cmd_notify_on_codecs(hfp_connection->rfcomm_cid); 537 538 } 539 break; 540 } 541 default: 542 break; 543 } 544 return 0; 545 } 546 547 static int hfp_hf_run_for_audio_connection(hfp_connection_t * hfp_connection){ 548 if ((hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) || 549 (hfp_connection->state > HFP_W2_DISCONNECT_SCO)) return 0; 550 551 if (hfp_connection->release_audio_connection){ 552 hfp_connection->state = HFP_W4_SCO_DISCONNECTED; 553 hfp_connection->release_audio_connection = 0; 554 gap_disconnect(hfp_connection->sco_handle); 555 return 1; 556 } 557 558 if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED) return 0; 559 560 // run codecs exchange 561 int done = codecs_exchange_state_machine(hfp_connection); 562 if (done) return 1; 563 564 if (hfp_connection->codecs_state != HFP_CODECS_EXCHANGED) return 0; 565 if (hfp_connection->establish_audio_connection){ 566 hfp_connection->state = HFP_W4_SCO_CONNECTED; 567 hfp_connection->establish_audio_connection = 0; 568 hfp_setup_synchronous_connection(hfp_connection); 569 return 1; 570 } 571 572 return 0; 573 } 574 575 576 static int call_setup_state_machine(hfp_connection_t * hfp_connection){ 577 if (hfp_connection->hf_answer_incoming_call){ 578 hfp_hf_cmd_ata(hfp_connection->rfcomm_cid); 579 hfp_connection->hf_answer_incoming_call = 0; 580 return 1; 581 } 582 return 0; 583 } 584 585 static void hfp_run_for_context(hfp_connection_t * hfp_connection){ 586 if (!hfp_connection) return; 587 if (!hfp_connection->rfcomm_cid) return; 588 589 if (hfp_connection->local_role != HFP_ROLE_HF) { 590 log_info("HFP HF%p, wrong role %u", hfp_connection, hfp_connection->local_role); 591 return; 592 } 593 594 if (hfp_connection->hf_accept_sco && hci_can_send_command_packet_now()){ 595 596 bool eSCO = hfp_connection->hf_accept_sco == 2; 597 hfp_connection->hf_accept_sco = 0; 598 599 // notify about codec selection if not done already 600 if (hfp_connection->negotiated_codec == 0){ 601 hfp_connection->negotiated_codec = HFP_CODEC_CVSD; 602 } 603 604 // remote supported feature eSCO is set if link type is eSCO 605 // eSCO: S4 - max latency == transmission interval = 0x000c == 12 ms, 606 uint16_t max_latency; 607 uint8_t retransmission_effort; 608 uint16_t packet_types; 609 610 if (eSCO && hci_extended_sco_link_supported() && hci_remote_esco_supported(hfp_connection->acl_handle)){ 611 max_latency = 0x000c; 612 retransmission_effort = 0x02; 613 packet_types = 0x388; 614 } else { 615 max_latency = 0xffff; 616 retransmission_effort = 0xff; 617 packet_types = 0x003f; 618 } 619 620 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 log_info("HFP: sending hci_accept_connection_request, sco_voice_setting 0x%02x", sco_voice_setting); 626 hci_send_cmd(&hci_accept_synchronous_connection, hfp_connection->remote_addr, 8000, 8000, max_latency, 627 sco_voice_setting, retransmission_effort, packet_types); 628 return; 629 } 630 631 if (!rfcomm_can_send_packet_now(hfp_connection->rfcomm_cid)) { 632 rfcomm_request_can_send_now_event(hfp_connection->rfcomm_cid); 633 return; 634 } 635 int done = hfp_hf_run_for_context_service_level_connection(hfp_connection); 636 if (!done){ 637 done = hfp_hf_run_for_context_service_level_connection_queries(hfp_connection); 638 } 639 if (!done){ 640 done = hfp_hf_run_for_audio_connection(hfp_connection); 641 } 642 if (!done){ 643 done = call_setup_state_machine(hfp_connection); 644 } 645 646 // don't send a new command while ok still pending 647 if (hfp_connection->ok_pending) return; 648 649 if (hfp_connection->send_microphone_gain){ 650 hfp_connection->send_microphone_gain = 0; 651 hfp_connection->ok_pending = 1; 652 hfp_hf_set_microphone_gain_cmd(hfp_connection->rfcomm_cid, hfp_connection->microphone_gain); 653 return; 654 } 655 656 if (hfp_connection->send_speaker_gain){ 657 hfp_connection->send_speaker_gain = 0; 658 hfp_connection->ok_pending = 1; 659 hfp_hf_set_speaker_gain_cmd(hfp_connection->rfcomm_cid, hfp_connection->speaker_gain); 660 return; 661 } 662 663 if (hfp_connection->hf_deactivate_calling_line_notification){ 664 hfp_connection->hf_deactivate_calling_line_notification = 0; 665 hfp_connection->ok_pending = 1; 666 hfp_hf_set_calling_line_notification_cmd(hfp_connection->rfcomm_cid, 0); 667 return; 668 } 669 670 if (hfp_connection->hf_activate_calling_line_notification){ 671 hfp_connection->hf_activate_calling_line_notification = 0; 672 hfp_connection->ok_pending = 1; 673 hfp_hf_set_calling_line_notification_cmd(hfp_connection->rfcomm_cid, 1); 674 return; 675 } 676 677 if (hfp_connection->hf_deactivate_echo_canceling_and_noise_reduction){ 678 hfp_connection->hf_deactivate_echo_canceling_and_noise_reduction = 0; 679 hfp_connection->ok_pending = 1; 680 hfp_hf_set_echo_canceling_and_noise_reduction_cmd(hfp_connection->rfcomm_cid, 0); 681 return; 682 } 683 684 if (hfp_connection->hf_activate_echo_canceling_and_noise_reduction){ 685 hfp_connection->hf_activate_echo_canceling_and_noise_reduction = 0; 686 hfp_connection->ok_pending = 1; 687 hfp_hf_set_echo_canceling_and_noise_reduction_cmd(hfp_connection->rfcomm_cid, 1); 688 return; 689 } 690 691 if (hfp_connection->hf_deactivate_voice_recognition_notification){ 692 hfp_connection->hf_deactivate_voice_recognition_notification = 0; 693 hfp_connection->ok_pending = 1; 694 hfp_hf_set_voice_recognition_notification_cmd(hfp_connection->rfcomm_cid, 0); 695 return; 696 } 697 698 if (hfp_connection->hf_activate_voice_recognition_notification){ 699 hfp_connection->hf_activate_voice_recognition_notification = 0; 700 hfp_connection->ok_pending = 1; 701 hfp_hf_set_voice_recognition_notification_cmd(hfp_connection->rfcomm_cid, 1); 702 return; 703 } 704 705 706 if (hfp_connection->hf_deactivate_call_waiting_notification){ 707 hfp_connection->hf_deactivate_call_waiting_notification = 0; 708 hfp_connection->ok_pending = 1; 709 hfp_hf_set_call_waiting_notification_cmd(hfp_connection->rfcomm_cid, 0); 710 return; 711 } 712 713 if (hfp_connection->hf_activate_call_waiting_notification){ 714 hfp_connection->hf_activate_call_waiting_notification = 0; 715 hfp_connection->ok_pending = 1; 716 hfp_hf_set_call_waiting_notification_cmd(hfp_connection->rfcomm_cid, 1); 717 return; 718 } 719 720 if (hfp_connection->hf_initiate_outgoing_call){ 721 hfp_connection->hf_initiate_outgoing_call = 0; 722 hfp_connection->ok_pending = 1; 723 hfp_hf_initiate_outgoing_call_cmd(hfp_connection->rfcomm_cid); 724 return; 725 } 726 727 if (hfp_connection->hf_initiate_memory_dialing){ 728 hfp_connection->hf_initiate_memory_dialing = 0; 729 hfp_connection->ok_pending = 1; 730 hfp_hf_send_memory_dial_cmd(hfp_connection->rfcomm_cid, hfp_connection->memory_id); 731 return; 732 } 733 734 if (hfp_connection->hf_initiate_redial_last_number){ 735 hfp_connection->hf_initiate_redial_last_number = 0; 736 hfp_connection->ok_pending = 1; 737 hfp_hf_send_redial_last_number_cmd(hfp_connection->rfcomm_cid); 738 return; 739 } 740 741 if (hfp_connection->hf_send_chup){ 742 hfp_connection->hf_send_chup = 0; 743 hfp_connection->ok_pending = 1; 744 hfp_hf_send_chup(hfp_connection->rfcomm_cid); 745 return; 746 } 747 748 if (hfp_connection->hf_send_chld_0){ 749 hfp_connection->hf_send_chld_0 = 0; 750 hfp_connection->ok_pending = 1; 751 hfp_hf_send_chld(hfp_connection->rfcomm_cid, 0); 752 return; 753 } 754 755 if (hfp_connection->hf_send_chld_1){ 756 hfp_connection->hf_send_chld_1 = 0; 757 hfp_connection->ok_pending = 1; 758 hfp_hf_send_chld(hfp_connection->rfcomm_cid, 1); 759 return; 760 } 761 762 if (hfp_connection->hf_send_chld_2){ 763 hfp_connection->hf_send_chld_2 = 0; 764 hfp_connection->ok_pending = 1; 765 hfp_hf_send_chld(hfp_connection->rfcomm_cid, 2); 766 return; 767 } 768 769 if (hfp_connection->hf_send_chld_3){ 770 hfp_connection->hf_send_chld_3 = 0; 771 hfp_connection->ok_pending = 1; 772 hfp_hf_send_chld(hfp_connection->rfcomm_cid, 3); 773 return; 774 } 775 776 if (hfp_connection->hf_send_chld_4){ 777 hfp_connection->hf_send_chld_4 = 0; 778 hfp_connection->ok_pending = 1; 779 hfp_hf_send_chld(hfp_connection->rfcomm_cid, 4); 780 return; 781 } 782 783 if (hfp_connection->hf_send_chld_x){ 784 hfp_connection->hf_send_chld_x = 0; 785 hfp_connection->ok_pending = 1; 786 hfp_hf_send_chld(hfp_connection->rfcomm_cid, hfp_connection->hf_send_chld_x_index); 787 return; 788 } 789 790 if (hfp_connection->hf_send_dtmf_code){ 791 char code = hfp_connection->hf_send_dtmf_code; 792 hfp_connection->hf_send_dtmf_code = 0; 793 hfp_connection->ok_pending = 1; 794 hfp_hf_send_dtmf(hfp_connection->rfcomm_cid, code); 795 return; 796 } 797 798 if (hfp_connection->hf_send_binp){ 799 hfp_connection->hf_send_binp = 0; 800 hfp_connection->ok_pending = 1; 801 hfp_hf_send_binp(hfp_connection->rfcomm_cid); 802 return; 803 } 804 805 if (hfp_connection->hf_send_clcc){ 806 hfp_connection->hf_send_clcc = 0; 807 hfp_connection->ok_pending = 1; 808 hfp_hf_send_clcc(hfp_connection->rfcomm_cid); 809 return; 810 } 811 812 if (hfp_connection->hf_send_rrh){ 813 hfp_connection->hf_send_rrh = 0; 814 char buffer[20]; 815 switch (hfp_connection->hf_send_rrh_command){ 816 case '?': 817 sprintf(buffer, "AT%s?\r\n", HFP_RESPONSE_AND_HOLD); 818 send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer); 819 return; 820 case '0': 821 case '1': 822 case '2': 823 sprintf(buffer, "AT%s=%c\r\n", HFP_RESPONSE_AND_HOLD, hfp_connection->hf_send_rrh_command); 824 send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer); 825 return; 826 default: 827 break; 828 } 829 return; 830 } 831 832 if (hfp_connection->hf_send_cnum){ 833 hfp_connection->hf_send_cnum = 0; 834 char buffer[20]; 835 sprintf(buffer, "AT%s\r\n", HFP_SUBSCRIBER_NUMBER_INFORMATION); 836 send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer); 837 return; 838 } 839 840 // update HF indicators 841 if (hfp_connection->generic_status_update_bitmap){ 842 int i; 843 for (i=0;i<hfp_indicators_nr;i++){ 844 if (get_bit(hfp_connection->generic_status_update_bitmap, i)){ 845 if (hfp_connection->generic_status_indicators[i].state){ 846 hfp_connection->ok_pending = 1; 847 hfp_connection->generic_status_update_bitmap = store_bit(hfp_connection->generic_status_update_bitmap, i, 0); 848 char buffer[30]; 849 sprintf(buffer, "AT%s=%u,%u\r\n", HFP_TRANSFER_HF_INDICATOR_STATUS, hfp_indicators[i], (unsigned int) hfp_indicators_value[i]); 850 send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer); 851 } else { 852 log_info("Not sending HF indicator %u as it is disabled", hfp_indicators[i]); 853 } 854 return; 855 } 856 } 857 } 858 859 if (done) return; 860 // deal with disconnect 861 switch (hfp_connection->state){ 862 case HFP_W2_DISCONNECT_RFCOMM: 863 hfp_connection->state = HFP_W4_RFCOMM_DISCONNECTED; 864 rfcomm_disconnect(hfp_connection->rfcomm_cid); 865 break; 866 867 default: 868 break; 869 } 870 } 871 872 static void hfp_ag_slc_established(hfp_connection_t * hfp_connection){ 873 hfp_connection->state = HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED; 874 875 hfp_emit_slc_connection_event(hfp_connection, 0, hfp_connection->acl_handle, hfp_connection->remote_addr); 876 877 // restore volume settings 878 hfp_connection->speaker_gain = hfp_hf_speaker_gain; 879 hfp_connection->send_speaker_gain = 1; 880 hfp_emit_event(hfp_connection, HFP_SUBEVENT_SPEAKER_VOLUME, hfp_hf_speaker_gain); 881 hfp_connection->microphone_gain = hfp_hf_microphone_gain; 882 hfp_connection->send_microphone_gain = 1; 883 hfp_emit_event(hfp_connection, HFP_SUBEVENT_MICROPHONE_VOLUME, hfp_hf_microphone_gain); 884 // enable all indicators 885 int i; 886 for (i=0;i<hfp_indicators_nr;i++){ 887 hfp_connection->generic_status_indicators[i].uuid = hfp_indicators[i]; 888 hfp_connection->generic_status_indicators[i].state = 1; 889 } 890 } 891 892 static void hfp_hf_switch_on_ok(hfp_connection_t *hfp_connection){ 893 hfp_connection->ok_pending = 0; 894 switch (hfp_connection->state){ 895 case HFP_W4_EXCHANGE_SUPPORTED_FEATURES: 896 if (has_codec_negotiation_feature(hfp_connection)){ 897 hfp_connection->state = HFP_NOTIFY_ON_CODECS; 898 break; 899 } 900 hfp_connection->state = HFP_RETRIEVE_INDICATORS; 901 break; 902 903 case HFP_W4_NOTIFY_ON_CODECS: 904 hfp_connection->state = HFP_RETRIEVE_INDICATORS; 905 break; 906 907 case HFP_W4_RETRIEVE_INDICATORS: 908 hfp_connection->state = HFP_RETRIEVE_INDICATORS_STATUS; 909 break; 910 911 case HFP_W4_RETRIEVE_INDICATORS_STATUS: 912 hfp_connection->state = HFP_ENABLE_INDICATORS_STATUS_UPDATE; 913 break; 914 915 case HFP_W4_ENABLE_INDICATORS_STATUS_UPDATE: 916 if (has_call_waiting_and_3way_calling_feature(hfp_connection)){ 917 hfp_connection->state = HFP_RETRIEVE_CAN_HOLD_CALL; 918 break; 919 } 920 if (has_hf_indicators_feature(hfp_connection)){ 921 hfp_connection->state = HFP_LIST_GENERIC_STATUS_INDICATORS; 922 break; 923 } 924 hfp_ag_slc_established(hfp_connection); 925 break; 926 927 case HFP_W4_RETRIEVE_CAN_HOLD_CALL: 928 if (has_hf_indicators_feature(hfp_connection)){ 929 hfp_connection->state = HFP_LIST_GENERIC_STATUS_INDICATORS; 930 break; 931 } 932 hfp_ag_slc_established(hfp_connection); 933 break; 934 935 case HFP_W4_LIST_GENERIC_STATUS_INDICATORS: 936 hfp_connection->state = HFP_RETRIEVE_GENERIC_STATUS_INDICATORS; 937 break; 938 939 case HFP_W4_RETRIEVE_GENERIC_STATUS_INDICATORS: 940 hfp_connection->state = HFP_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS; 941 break; 942 943 case HFP_W4_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS: 944 hfp_ag_slc_established(hfp_connection); 945 break; 946 case HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED: 947 if (hfp_connection->enable_status_update_for_ag_indicators != 0xFF){ 948 hfp_connection->enable_status_update_for_ag_indicators = 0xFF; 949 hfp_emit_event(hfp_connection, HFP_SUBEVENT_COMPLETE, 0); 950 break; 951 } 952 953 if (hfp_connection->change_status_update_for_individual_ag_indicators == 1){ 954 hfp_connection->change_status_update_for_individual_ag_indicators = 0; 955 hfp_emit_event(hfp_connection, HFP_SUBEVENT_COMPLETE, 0); 956 break; 957 } 958 959 switch (hfp_connection->hf_query_operator_state){ 960 case HFP_HF_QUERY_OPERATOR_W4_SET_FORMAT_OK: 961 // printf("Format set, querying name\n"); 962 hfp_connection->hf_query_operator_state = HFP_HF_QUERY_OPERATOR_SEND_QUERY; 963 break; 964 case HPF_HF_QUERY_OPERATOR_W4_RESULT: 965 hfp_connection->hf_query_operator_state = HFP_HF_QUERY_OPERATOR_FORMAT_SET; 966 hfp_emit_network_operator_event(hfp_hf_callback, hfp_connection->network_operator); 967 break; 968 default: 969 break; 970 } 971 972 if (hfp_connection->enable_extended_audio_gateway_error_report){ 973 hfp_connection->enable_extended_audio_gateway_error_report = 0; 974 break; 975 } 976 977 switch (hfp_connection->codecs_state){ 978 case HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE: 979 hfp_connection->codecs_state = HFP_CODECS_W4_AG_COMMON_CODEC; 980 break; 981 case HFP_CODECS_HF_CONFIRMED_CODEC: 982 hfp_connection->codecs_state = HFP_CODECS_EXCHANGED; 983 break; 984 default: 985 break; 986 } 987 break; 988 default: 989 break; 990 } 991 992 // done 993 hfp_connection->command = HFP_CMD_NONE; 994 } 995 996 static int hfp_parser_is_end_of_line(uint8_t byte){ 997 return (byte == '\n') || (byte == '\r'); 998 } 999 1000 static void hfp_hf_handle_rfcomm_command(hfp_connection_t * hfp_connection){ 1001 int value; 1002 int i; 1003 switch (hfp_connection->command){ 1004 case HFP_CMD_GET_SUBSCRIBER_NUMBER_INFORMATION: 1005 hfp_connection->command = HFP_CMD_NONE; 1006 hfp_hf_emit_subscriber_information(hfp_hf_callback, HFP_SUBEVENT_SUBSCRIBER_NUMBER_INFORMATION, 0, hfp_connection->bnip_type, hfp_connection->bnip_number); 1007 break; 1008 case HFP_CMD_RESPONSE_AND_HOLD_STATUS: 1009 hfp_connection->command = HFP_CMD_NONE; 1010 hfp_emit_event(hfp_connection, HFP_SUBEVENT_RESPONSE_AND_HOLD_STATUS, btstack_atoi((char *)&hfp_connection->line_buffer[0])); 1011 break; 1012 case HFP_CMD_LIST_CURRENT_CALLS: 1013 hfp_connection->command = HFP_CMD_NONE; 1014 hfp_hf_emit_enhanced_call_status(hfp_hf_callback, hfp_connection); 1015 break; 1016 case HFP_CMD_SET_SPEAKER_GAIN: 1017 hfp_connection->command = HFP_CMD_NONE; 1018 value = btstack_atoi((char*)hfp_connection->line_buffer); 1019 hfp_hf_speaker_gain = value; 1020 hfp_emit_event(hfp_connection, HFP_SUBEVENT_SPEAKER_VOLUME, value); 1021 break; 1022 case HFP_CMD_SET_MICROPHONE_GAIN: 1023 hfp_connection->command = HFP_CMD_NONE; 1024 value = btstack_atoi((char*)hfp_connection->line_buffer); 1025 hfp_hf_microphone_gain = value; 1026 hfp_emit_event(hfp_connection, HFP_SUBEVENT_MICROPHONE_VOLUME, value); 1027 break; 1028 case HFP_CMD_AG_SENT_PHONE_NUMBER: 1029 hfp_connection->command = HFP_CMD_NONE; 1030 hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_NUMBER_FOR_VOICE_TAG, hfp_connection->bnip_number); 1031 break; 1032 case HFP_CMD_AG_SENT_CALL_WAITING_NOTIFICATION_UPDATE: 1033 hfp_connection->command = HFP_CMD_NONE; 1034 hfp_hf_emit_type_and_number(hfp_hf_callback, HFP_SUBEVENT_CALL_WAITING_NOTIFICATION, hfp_connection->bnip_type, hfp_connection->bnip_number); 1035 break; 1036 case HFP_CMD_AG_SENT_CLIP_INFORMATION: 1037 hfp_connection->command = HFP_CMD_NONE; 1038 hfp_hf_emit_type_and_number(hfp_hf_callback, HFP_SUBEVENT_CALLING_LINE_IDENTIFICATION_NOTIFICATION, hfp_connection->bnip_type, hfp_connection->bnip_number); 1039 break; 1040 case HFP_CMD_EXTENDED_AUDIO_GATEWAY_ERROR: 1041 hfp_connection->ok_pending = 0; 1042 hfp_connection->command = HFP_CMD_NONE; 1043 hfp_connection->extended_audio_gateway_error = 0; 1044 hfp_emit_event(hfp_connection, HFP_SUBEVENT_EXTENDED_AUDIO_GATEWAY_ERROR, hfp_connection->extended_audio_gateway_error_value); 1045 break; 1046 case HFP_CMD_ERROR: 1047 hfp_connection->ok_pending = 0; 1048 hfp_reset_context_flags(hfp_connection); 1049 hfp_connection->command = HFP_CMD_NONE; 1050 hfp_emit_event(hfp_connection, HFP_SUBEVENT_COMPLETE, 1); 1051 break; 1052 case HFP_CMD_OK: 1053 hfp_hf_switch_on_ok(hfp_connection); 1054 break; 1055 case HFP_CMD_RING: 1056 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_RING); 1057 break; 1058 case HFP_CMD_TRANSFER_AG_INDICATOR_STATUS: 1059 for (i = 0; i < hfp_connection->ag_indicators_nr; i++){ 1060 if (hfp_connection->ag_indicators[i].status_changed) { 1061 if (strcmp(hfp_connection->ag_indicators[i].name, "callsetup") == 0){ 1062 hfp_callsetup_status = (hfp_callsetup_status_t) hfp_connection->ag_indicators[i].status; 1063 } else if (strcmp(hfp_connection->ag_indicators[i].name, "callheld") == 0){ 1064 hfp_callheld_status = (hfp_callheld_status_t) hfp_connection->ag_indicators[i].status; 1065 // avoid set but not used warning 1066 (void) hfp_callheld_status; 1067 } else if (strcmp(hfp_connection->ag_indicators[i].name, "call") == 0){ 1068 hfp_call_status = (hfp_call_status_t) hfp_connection->ag_indicators[i].status; 1069 } 1070 hfp_connection->ag_indicators[i].status_changed = 0; 1071 hfp_emit_ag_indicator_event(hfp_hf_callback, hfp_connection->ag_indicators[i]); 1072 break; 1073 } 1074 } 1075 break; 1076 case HFP_CMD_RETRIEVE_AG_INDICATORS_STATUS: 1077 for (i = 0; i < hfp_connection->ag_indicators_nr; i++){ 1078 hfp_emit_ag_indicator_event(hfp_hf_callback, hfp_connection->ag_indicators[i]); 1079 } 1080 hfp_connection->command = HFP_CMD_NONE; 1081 break; 1082 default: 1083 break; 1084 } 1085 } 1086 1087 static void hfp_hf_handle_rfcomm_data(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 1088 UNUSED(packet_type); // ok: only called with RFCOMM_DATA_PACKET 1089 // assertion: size >= 1 as rfcomm.c does not deliver empty packets 1090 if (size < 1) return; 1091 1092 hfp_connection_t * hfp_connection = get_hfp_connection_context_for_rfcomm_cid(channel); 1093 if (!hfp_connection) return; 1094 1095 hfp_log_rfcomm_message("HFP_HF_RX", packet, size); 1096 1097 // process messages byte-wise 1098 int pos; 1099 for (pos = 0; pos < size; pos++){ 1100 hfp_parse(hfp_connection, packet[pos], 1); 1101 1102 // parse until end of line "\r\n" 1103 if (!hfp_parser_is_end_of_line(packet[pos])) continue; 1104 1105 hfp_hf_handle_rfcomm_command(hfp_connection); 1106 } 1107 hfp_run_for_context(hfp_connection); 1108 } 1109 1110 static void hfp_run(void){ 1111 btstack_linked_list_iterator_t it; 1112 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1113 while (btstack_linked_list_iterator_has_next(&it)){ 1114 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1115 if (hfp_connection->local_role != HFP_ROLE_HF) continue; 1116 hfp_run_for_context(hfp_connection); 1117 } 1118 } 1119 1120 static void rfcomm_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 1121 switch (packet_type){ 1122 case RFCOMM_DATA_PACKET: 1123 hfp_hf_handle_rfcomm_data(packet_type, channel, packet, size); 1124 break; 1125 case HCI_EVENT_PACKET: 1126 if (packet[0] == RFCOMM_EVENT_CAN_SEND_NOW){ 1127 uint16_t rfcomm_cid = rfcomm_event_can_send_now_get_rfcomm_cid(packet); 1128 hfp_run_for_context(get_hfp_connection_context_for_rfcomm_cid(rfcomm_cid)); 1129 return; 1130 } 1131 hfp_handle_rfcomm_event(packet_type, channel, packet, size, HFP_ROLE_HF); 1132 break; 1133 default: 1134 break; 1135 } 1136 hfp_run(); 1137 } 1138 1139 static void hci_event_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 1140 hfp_handle_hci_event(packet_type, channel, packet, size, HFP_ROLE_HF); 1141 1142 // allow for sco established -> ring transition and sco retry 1143 if (packet_type != HCI_EVENT_PACKET) return; 1144 if (hci_event_packet_get_type(packet) != HCI_EVENT_SYNCHRONOUS_CONNECTION_COMPLETE) return; 1145 hfp_run(); 1146 } 1147 1148 void hfp_hf_init(uint16_t rfcomm_channel_nr){ 1149 hfp_init(); 1150 1151 hci_event_callback_registration.callback = &hci_event_packet_handler; 1152 hci_add_event_handler(&hci_event_callback_registration); 1153 1154 rfcomm_register_service(rfcomm_packet_handler, rfcomm_channel_nr, 0xffff); 1155 1156 // used to set packet handler for outgoing rfcomm connections - could be handled by emitting an event to us 1157 hfp_set_hf_rfcomm_packet_handler(&rfcomm_packet_handler); 1158 1159 hfp_set_hf_run_for_context(hfp_run_for_context); 1160 1161 hfp_supported_features = HFP_DEFAULT_HF_SUPPORTED_FEATURES; 1162 hfp_codecs_nr = 0; 1163 hfp_indicators_nr = 0; 1164 hfp_hf_speaker_gain = 9; 1165 hfp_hf_microphone_gain = 9; 1166 } 1167 1168 void hfp_hf_init_codecs(int codecs_nr, uint8_t * codecs){ 1169 if (codecs_nr > HFP_MAX_NUM_CODECS){ 1170 log_error("hfp_hf_init_codecs: codecs_nr (%d) > HFP_MAX_NUM_CODECS (%d)", codecs_nr, HFP_MAX_NUM_CODECS); 1171 return; 1172 } 1173 1174 hfp_codecs_nr = codecs_nr; 1175 int i; 1176 for (i=0; i<codecs_nr; i++){ 1177 hfp_codecs[i] = codecs[i]; 1178 } 1179 } 1180 1181 void hfp_hf_init_supported_features(uint32_t supported_features){ 1182 hfp_supported_features = supported_features; 1183 } 1184 1185 void hfp_hf_init_hf_indicators(int indicators_nr, uint16_t * indicators){ 1186 hfp_indicators_nr = indicators_nr; 1187 int i; 1188 for (i = 0; i < hfp_indicators_nr ; i++){ 1189 hfp_indicators[i] = indicators[i]; 1190 } 1191 } 1192 1193 void hfp_hf_establish_service_level_connection(bd_addr_t bd_addr){ 1194 hfp_establish_service_level_connection(bd_addr, BLUETOOTH_SERVICE_CLASS_HANDSFREE_AUDIO_GATEWAY, HFP_ROLE_HF); 1195 } 1196 1197 void hfp_hf_release_service_level_connection(hci_con_handle_t acl_handle){ 1198 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1199 if (!hfp_connection) { 1200 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1201 return; 1202 } 1203 hfp_release_service_level_connection(hfp_connection); 1204 hfp_run_for_context(hfp_connection); 1205 } 1206 1207 static void hfp_hf_set_status_update_for_all_ag_indicators(hci_con_handle_t acl_handle, uint8_t enable){ 1208 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1209 if (!hfp_connection) { 1210 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1211 return; 1212 } 1213 hfp_connection->enable_status_update_for_ag_indicators = enable; 1214 hfp_run_for_context(hfp_connection); 1215 } 1216 1217 void hfp_hf_enable_status_update_for_all_ag_indicators(hci_con_handle_t acl_handle){ 1218 hfp_hf_set_status_update_for_all_ag_indicators(acl_handle, 1); 1219 } 1220 1221 void hfp_hf_disable_status_update_for_all_ag_indicators(hci_con_handle_t acl_handle){ 1222 hfp_hf_set_status_update_for_all_ag_indicators(acl_handle, 0); 1223 } 1224 1225 // TODO: returned ERROR - wrong format 1226 void hfp_hf_set_status_update_for_individual_ag_indicators(hci_con_handle_t acl_handle, uint32_t indicators_status_bitmap){ 1227 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1228 if (!hfp_connection) { 1229 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1230 return; 1231 } 1232 hfp_connection->change_status_update_for_individual_ag_indicators = 1; 1233 hfp_connection->ag_indicators_status_update_bitmap = indicators_status_bitmap; 1234 hfp_run_for_context(hfp_connection); 1235 } 1236 1237 void hfp_hf_query_operator_selection(hci_con_handle_t acl_handle){ 1238 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1239 if (!hfp_connection) { 1240 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1241 return; 1242 } 1243 switch (hfp_connection->hf_query_operator_state){ 1244 case HFP_HF_QUERY_OPERATOR_FORMAT_NOT_SET: 1245 hfp_connection->hf_query_operator_state = HFP_HF_QUERY_OPERATOR_SET_FORMAT; 1246 break; 1247 case HFP_HF_QUERY_OPERATOR_FORMAT_SET: 1248 hfp_connection->hf_query_operator_state = HFP_HF_QUERY_OPERATOR_SEND_QUERY; 1249 break; 1250 default: 1251 break; 1252 } 1253 hfp_run_for_context(hfp_connection); 1254 } 1255 1256 static void hfp_hf_set_report_extended_audio_gateway_error_result_code(hci_con_handle_t acl_handle, uint8_t enable){ 1257 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1258 if (!hfp_connection) { 1259 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1260 return; 1261 } 1262 hfp_connection->enable_extended_audio_gateway_error_report = enable; 1263 hfp_run_for_context(hfp_connection); 1264 } 1265 1266 1267 void hfp_hf_enable_report_extended_audio_gateway_error_result_code(hci_con_handle_t acl_handle){ 1268 hfp_hf_set_report_extended_audio_gateway_error_result_code(acl_handle, 1); 1269 } 1270 1271 void hfp_hf_disable_report_extended_audio_gateway_error_result_code(hci_con_handle_t acl_handle){ 1272 hfp_hf_set_report_extended_audio_gateway_error_result_code(acl_handle, 0); 1273 } 1274 1275 static uint8_t hfp_hf_esco_s4_supported(hfp_connection_t * hfp_connection){ 1276 return (hfp_connection->remote_supported_features & (1<<HFP_AGSF_ESCO_S4)) && (hfp_supported_features & (1<<HFP_HFSF_ESCO_S4)); 1277 } 1278 1279 void hfp_hf_establish_audio_connection(hci_con_handle_t acl_handle){ 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->establish_audio_connection = 0; 1286 1287 if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED) return; 1288 if (hfp_connection->state >= HFP_W2_DISCONNECT_SCO) return; 1289 1290 hfp_connection->trigger_codec_exchange = 0; 1291 hfp_connection->establish_audio_connection = 1; 1292 if (!has_codec_negotiation_feature(hfp_connection)){ 1293 log_info("hfp_ag_establish_audio_connection - no codec negotiation feature, using defaults"); 1294 hfp_connection->codecs_state = HFP_CODECS_EXCHANGED; 1295 hfp_connection->suggested_codec = HFP_CODEC_CVSD; 1296 hfp_connection->codec_confirmed = hfp_connection->suggested_codec; 1297 hfp_connection->negotiated_codec = hfp_connection->suggested_codec; 1298 hfp_init_link_settings(hfp_connection, hfp_hf_esco_s4_supported(hfp_connection)); 1299 hfp_connection->trigger_codec_exchange = 0; 1300 hfp_connection->state = HFP_W4_SCO_CONNECTED; 1301 } else { 1302 switch (hfp_connection->codecs_state){ 1303 case HFP_CODECS_W4_AG_COMMON_CODEC: 1304 break; 1305 default: 1306 hfp_connection->trigger_codec_exchange = 1; 1307 hfp_connection->command = HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP; 1308 break; 1309 } 1310 } 1311 1312 hfp_run_for_context(hfp_connection); 1313 } 1314 1315 void hfp_hf_release_audio_connection(hci_con_handle_t acl_handle){ 1316 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1317 if (!hfp_connection) { 1318 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1319 return; 1320 } 1321 hfp_release_audio_connection(hfp_connection); 1322 hfp_run_for_context(hfp_connection); 1323 } 1324 1325 void hfp_hf_answer_incoming_call(hci_con_handle_t acl_handle){ 1326 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1327 if (!hfp_connection) { 1328 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1329 return; 1330 } 1331 1332 if (hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS){ 1333 hfp_connection->hf_answer_incoming_call = 1; 1334 hfp_run_for_context(hfp_connection); 1335 } else { 1336 log_error("HFP HF: answering incoming call with wrong callsetup status %u", hfp_callsetup_status); 1337 } 1338 } 1339 1340 void hfp_hf_terminate_call(hci_con_handle_t acl_handle){ 1341 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1342 if (!hfp_connection) { 1343 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1344 return; 1345 } 1346 hfp_connection->hf_send_chup = 1; 1347 hfp_run_for_context(hfp_connection); 1348 } 1349 1350 void hfp_hf_reject_incoming_call(hci_con_handle_t acl_handle){ 1351 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1352 if (!hfp_connection) { 1353 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1354 return; 1355 } 1356 1357 if (hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS){ 1358 hfp_connection->hf_send_chup = 1; 1359 hfp_run_for_context(hfp_connection); 1360 } 1361 } 1362 1363 void hfp_hf_user_busy(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 1370 if (hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS){ 1371 hfp_connection->hf_send_chld_0 = 1; 1372 hfp_run_for_context(hfp_connection); 1373 } 1374 } 1375 1376 void hfp_hf_end_active_and_accept_other(hci_con_handle_t acl_handle){ 1377 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1378 if (!hfp_connection) { 1379 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1380 return; 1381 } 1382 1383 if ((hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) || 1384 (hfp_call_status == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT)){ 1385 hfp_connection->hf_send_chld_1 = 1; 1386 hfp_run_for_context(hfp_connection); 1387 } 1388 } 1389 1390 void hfp_hf_swap_calls(hci_con_handle_t acl_handle){ 1391 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1392 if (!hfp_connection) { 1393 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1394 return; 1395 } 1396 1397 if ((hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) || 1398 (hfp_call_status == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT)){ 1399 hfp_connection->hf_send_chld_2 = 1; 1400 hfp_run_for_context(hfp_connection); 1401 } 1402 } 1403 1404 void hfp_hf_join_held_call(hci_con_handle_t acl_handle){ 1405 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1406 if (!hfp_connection) { 1407 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1408 return; 1409 } 1410 1411 if ((hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) || 1412 (hfp_call_status == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT)){ 1413 hfp_connection->hf_send_chld_3 = 1; 1414 hfp_run_for_context(hfp_connection); 1415 } 1416 } 1417 1418 void hfp_hf_connect_calls(hci_con_handle_t acl_handle){ 1419 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1420 if (!hfp_connection) { 1421 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1422 return; 1423 } 1424 1425 if ((hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) || 1426 (hfp_call_status == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT)){ 1427 hfp_connection->hf_send_chld_4 = 1; 1428 hfp_run_for_context(hfp_connection); 1429 } 1430 } 1431 1432 void hfp_hf_release_call_with_index(hci_con_handle_t acl_handle, int index){ 1433 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1434 if (!hfp_connection) { 1435 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1436 return; 1437 } 1438 1439 if ((hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) || 1440 (hfp_call_status == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT)){ 1441 hfp_connection->hf_send_chld_x = 1; 1442 hfp_connection->hf_send_chld_x_index = 10 + index; 1443 hfp_run_for_context(hfp_connection); 1444 } 1445 } 1446 1447 void hfp_hf_private_consultation_with_call(hci_con_handle_t acl_handle, int index){ 1448 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1449 if (!hfp_connection) { 1450 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1451 return; 1452 } 1453 1454 if ((hfp_callsetup_status == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS) || 1455 (hfp_call_status == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT)){ 1456 hfp_connection->hf_send_chld_x = 1; 1457 hfp_connection->hf_send_chld_x_index = 20 + index; 1458 hfp_run_for_context(hfp_connection); 1459 } 1460 } 1461 1462 void hfp_hf_dial_number(hci_con_handle_t acl_handle, char * number){ 1463 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1464 if (!hfp_connection) { 1465 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1466 return; 1467 } 1468 1469 hfp_connection->hf_initiate_outgoing_call = 1; 1470 snprintf(phone_number, sizeof(phone_number), "%s", number); 1471 hfp_run_for_context(hfp_connection); 1472 } 1473 1474 void hfp_hf_dial_memory(hci_con_handle_t acl_handle, int memory_id){ 1475 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1476 if (!hfp_connection) { 1477 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1478 return; 1479 } 1480 1481 hfp_connection->hf_initiate_memory_dialing = 1; 1482 hfp_connection->memory_id = memory_id; 1483 1484 hfp_run_for_context(hfp_connection); 1485 } 1486 1487 void hfp_hf_redial_last_number(hci_con_handle_t acl_handle){ 1488 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1489 if (!hfp_connection) { 1490 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1491 return; 1492 } 1493 1494 hfp_connection->hf_initiate_redial_last_number = 1; 1495 hfp_run_for_context(hfp_connection); 1496 } 1497 1498 void hfp_hf_activate_call_waiting_notification(hci_con_handle_t acl_handle){ 1499 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1500 if (!hfp_connection) { 1501 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1502 return; 1503 } 1504 1505 hfp_connection->hf_activate_call_waiting_notification = 1; 1506 hfp_run_for_context(hfp_connection); 1507 } 1508 1509 1510 void hfp_hf_deactivate_call_waiting_notification(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_deactivate_call_waiting_notification = 1; 1518 hfp_run_for_context(hfp_connection); 1519 } 1520 1521 1522 void hfp_hf_activate_calling_line_notification(hci_con_handle_t acl_handle){ 1523 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1524 if (!hfp_connection) { 1525 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1526 return; 1527 } 1528 1529 hfp_connection->hf_activate_calling_line_notification = 1; 1530 hfp_run_for_context(hfp_connection); 1531 } 1532 1533 void hfp_hf_deactivate_calling_line_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_calling_line_notification = 1; 1541 hfp_run_for_context(hfp_connection); 1542 } 1543 1544 1545 void hfp_hf_activate_echo_canceling_and_noise_reduction(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_echo_canceling_and_noise_reduction = 1; 1553 hfp_run_for_context(hfp_connection); 1554 } 1555 1556 void hfp_hf_deactivate_echo_canceling_and_noise_reduction(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_echo_canceling_and_noise_reduction = 1; 1564 hfp_run_for_context(hfp_connection); 1565 } 1566 1567 void hfp_hf_activate_voice_recognition_notification(hci_con_handle_t acl_handle){ 1568 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1569 if (!hfp_connection) { 1570 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1571 return; 1572 } 1573 1574 hfp_connection->hf_activate_voice_recognition_notification = 1; 1575 hfp_run_for_context(hfp_connection); 1576 } 1577 1578 void hfp_hf_deactivate_voice_recognition_notification(hci_con_handle_t acl_handle){ 1579 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1580 if (!hfp_connection) { 1581 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1582 return; 1583 } 1584 1585 hfp_connection->hf_deactivate_voice_recognition_notification = 1; 1586 hfp_run_for_context(hfp_connection); 1587 } 1588 1589 void hfp_hf_set_microphone_gain(hci_con_handle_t acl_handle, int gain){ 1590 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1591 if (!hfp_connection) { 1592 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1593 return; 1594 } 1595 1596 if (hfp_connection->microphone_gain == gain) return; 1597 if ((gain < 0) || (gain > 15)){ 1598 log_info("Valid range for a gain is [0..15]. Currently sent: %d", gain); 1599 return; 1600 } 1601 hfp_connection->microphone_gain = gain; 1602 hfp_connection->send_microphone_gain = 1; 1603 hfp_run_for_context(hfp_connection); 1604 } 1605 1606 void hfp_hf_set_speaker_gain(hci_con_handle_t acl_handle, int gain){ 1607 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1608 if (!hfp_connection) { 1609 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1610 return; 1611 } 1612 1613 if (hfp_connection->speaker_gain == gain) return; 1614 if ((gain < 0) || (gain > 15)){ 1615 log_info("Valid range for a gain is [0..15]. Currently sent: %d", gain); 1616 return; 1617 } 1618 hfp_connection->speaker_gain = gain; 1619 hfp_connection->send_speaker_gain = 1; 1620 hfp_run_for_context(hfp_connection); 1621 } 1622 1623 void hfp_hf_send_dtmf_code(hci_con_handle_t acl_handle, char code){ 1624 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1625 if (!hfp_connection) { 1626 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1627 return; 1628 } 1629 1630 hfp_connection->hf_send_dtmf_code = code; 1631 hfp_run_for_context(hfp_connection); 1632 } 1633 1634 void hfp_hf_request_phone_number_for_voice_tag(hci_con_handle_t acl_handle){ 1635 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1636 if (!hfp_connection) { 1637 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1638 return; 1639 } 1640 hfp_connection->hf_send_binp = 1; 1641 hfp_run_for_context(hfp_connection); 1642 } 1643 1644 void hfp_hf_query_current_call_status(hci_con_handle_t acl_handle){ 1645 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1646 if (!hfp_connection) { 1647 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1648 return; 1649 } 1650 hfp_connection->hf_send_clcc = 1; 1651 hfp_run_for_context(hfp_connection); 1652 } 1653 1654 1655 void hfp_hf_rrh_query_status(hci_con_handle_t acl_handle){ 1656 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1657 if (!hfp_connection) { 1658 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1659 return; 1660 } 1661 hfp_connection->hf_send_rrh = 1; 1662 hfp_connection->hf_send_rrh_command = '?'; 1663 hfp_run_for_context(hfp_connection); 1664 } 1665 1666 void hfp_hf_rrh_hold_call(hci_con_handle_t acl_handle){ 1667 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1668 if (!hfp_connection) { 1669 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1670 return; 1671 } 1672 hfp_connection->hf_send_rrh = 1; 1673 hfp_connection->hf_send_rrh_command = '0'; 1674 hfp_run_for_context(hfp_connection); 1675 } 1676 1677 void hfp_hf_rrh_accept_held_call(hci_con_handle_t acl_handle){ 1678 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1679 if (!hfp_connection) { 1680 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1681 return; 1682 } 1683 hfp_connection->hf_send_rrh = 1; 1684 hfp_connection->hf_send_rrh_command = '1'; 1685 hfp_run_for_context(hfp_connection); 1686 } 1687 1688 void hfp_hf_rrh_reject_held_call(hci_con_handle_t acl_handle){ 1689 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1690 if (!hfp_connection) { 1691 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1692 return; 1693 } 1694 hfp_connection->hf_send_rrh = 1; 1695 hfp_connection->hf_send_rrh_command = '2'; 1696 hfp_run_for_context(hfp_connection); 1697 } 1698 1699 void hfp_hf_query_subscriber_number(hci_con_handle_t acl_handle){ 1700 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1701 if (!hfp_connection) { 1702 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1703 return; 1704 } 1705 hfp_connection->hf_send_cnum = 1; 1706 hfp_run_for_context(hfp_connection); 1707 } 1708 1709 void hfp_hf_set_hf_indicator(hci_con_handle_t acl_handle, int assigned_number, int value){ 1710 hfp_connection_t * hfp_connection = get_hfp_hf_connection_context_for_acl_handle(acl_handle); 1711 if (!hfp_connection) { 1712 log_error("HFP HF: ACL handle 0x%2x is not found.", acl_handle); 1713 return; 1714 } 1715 // find index for assigned number 1716 int i; 1717 for (i = 0; i < hfp_indicators_nr ; i++){ 1718 if (hfp_indicators[i] == assigned_number){ 1719 // set value 1720 hfp_indicators_value[i] = value; 1721 // mark for update 1722 if (hfp_connection->state > HFP_LIST_GENERIC_STATUS_INDICATORS){ 1723 hfp_connection->generic_status_update_bitmap |= (1<<i); 1724 // send update 1725 hfp_run_for_context(hfp_connection); 1726 } 1727 return; 1728 } 1729 } 1730 } 1731 1732 int hfp_hf_in_band_ringtone_active(hci_con_handle_t acl_handle){ 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 0; 1737 } 1738 return get_bit(hfp_connection->remote_supported_features, HFP_AGSF_IN_BAND_RING_TONE); 1739 } 1740