1 /* 2 * Copyright (C) 2014 BlueKitchen GmbH 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the copyright holders nor the names of 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 4. Any redistribution, use, or modification is done solely for 17 * personal benefit and not for any commercial purpose or for 18 * monetary gain. 19 * 20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL MATTHIAS 24 * RINGWALD OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * Please inquire about commercial licensing options at 34 * [email protected] 35 * 36 */ 37 38 #define BTSTACK_FILE__ "hfp_ag.c" 39 40 // ***************************************************************************** 41 // 42 // HFP Audio Gateway (AG) unit 43 // 44 // ***************************************************************************** 45 46 #include "btstack_config.h" 47 48 #include <stdint.h> 49 #include <stdio.h> 50 #include <stdlib.h> 51 #include <string.h> 52 53 #include "hci_cmd.h" 54 #include "btstack_run_loop.h" 55 56 #include "bluetooth_sdp.h" 57 #include "hci.h" 58 #include "btstack_memory.h" 59 #include "hci_dump.h" 60 #include "l2cap.h" 61 #include "btstack_debug.h" 62 #include "btstack_event.h" 63 #include "classic/core.h" 64 #include "classic/hfp.h" 65 #include "classic/hfp_ag.h" 66 #include "classic/hfp_gsm_model.h" 67 #include "classic/sdp_client_rfcomm.h" 68 #include "classic/sdp_server.h" 69 #include "classic/sdp_util.h" 70 71 // private prototypes 72 static void hfp_ag_run_for_context(hfp_connection_t *hfp_connection); 73 static void hfp_ag_hf_start_ringing(hfp_connection_t * hfp_connection); 74 static void hfp_ag_setup_audio_connection(hfp_connection_t * hfp_connection); 75 76 // public prototypes 77 hfp_generic_status_indicator_t * get_hfp_generic_status_indicators(void); 78 int get_hfp_generic_status_indicators_nr(void); 79 void set_hfp_generic_status_indicators(hfp_generic_status_indicator_t * indicators, int indicator_nr); 80 void set_hfp_ag_indicators(hfp_ag_indicator_t * indicators, int indicator_nr); 81 int get_hfp_ag_indicators_nr(hfp_connection_t * context); 82 hfp_ag_indicator_t * get_hfp_ag_indicators(hfp_connection_t * context); 83 84 static btstack_packet_callback_registration_t hci_event_callback_registration; 85 86 // gobals 87 static const char default_hfp_ag_service_name[] = "Voice gateway"; 88 89 static uint16_t hfp_supported_features = HFP_DEFAULT_AG_SUPPORTED_FEATURES; 90 91 static uint8_t hfp_codecs_nr = 0; 92 static uint8_t hfp_codecs[HFP_MAX_NUM_CODECS]; 93 94 static int hfp_ag_indicators_nr = 0; 95 static hfp_ag_indicator_t hfp_ag_indicators[HFP_MAX_NUM_AG_INDICATORS]; 96 97 static int hfp_generic_status_indicators_nr = 0; 98 static hfp_generic_status_indicator_t hfp_generic_status_indicators[HFP_MAX_NUM_HF_INDICATORS]; 99 100 static int hfp_ag_call_hold_services_nr = 0; 101 static char *hfp_ag_call_hold_services[6]; 102 static btstack_packet_handler_t hfp_ag_callback; 103 104 static hfp_response_and_hold_state_t hfp_ag_response_and_hold_state; 105 static int hfp_ag_response_and_hold_active = 0; 106 107 // Subcriber information entries 108 static hfp_phone_number_t * subscriber_numbers = NULL; 109 static int subscriber_numbers_count = 0; 110 111 hfp_ag_indicator_t * hfp_ag_get_ag_indicators(hfp_connection_t * hfp_connection); 112 113 114 static int hfp_ag_get_ag_indicators_nr(hfp_connection_t * hfp_connection){ 115 if (hfp_connection->ag_indicators_nr != hfp_ag_indicators_nr){ 116 hfp_connection->ag_indicators_nr = hfp_ag_indicators_nr; 117 memcpy(hfp_connection->ag_indicators, hfp_ag_indicators, hfp_ag_indicators_nr * sizeof(hfp_ag_indicator_t)); 118 } 119 return hfp_connection->ag_indicators_nr; 120 } 121 122 hfp_ag_indicator_t * hfp_ag_get_ag_indicators(hfp_connection_t * hfp_connection){ 123 // TODO: save only value, and value changed in the hfp_connection? 124 if (hfp_connection->ag_indicators_nr != hfp_ag_indicators_nr){ 125 hfp_connection->ag_indicators_nr = hfp_ag_indicators_nr; 126 memcpy(hfp_connection->ag_indicators, hfp_ag_indicators, hfp_ag_indicators_nr * sizeof(hfp_ag_indicator_t)); 127 } 128 return (hfp_ag_indicator_t *)&(hfp_connection->ag_indicators); 129 } 130 131 static hfp_ag_indicator_t * get_ag_indicator_for_name(const char * name){ 132 int i; 133 for (i = 0; i < hfp_ag_indicators_nr; i++){ 134 if (strcmp(hfp_ag_indicators[i].name, name) == 0){ 135 return &hfp_ag_indicators[i]; 136 } 137 } 138 return NULL; 139 } 140 141 static int get_ag_indicator_index_for_name(const char * name){ 142 int i; 143 for (i = 0; i < hfp_ag_indicators_nr; i++){ 144 if (strcmp(hfp_ag_indicators[i].name, name) == 0){ 145 return i; 146 } 147 } 148 return -1; 149 } 150 151 static hfp_connection_t * get_hfp_ag_connection_context_for_acl_handle(uint16_t handle){ 152 btstack_linked_list_iterator_t it; 153 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 154 while (btstack_linked_list_iterator_has_next(&it)){ 155 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 156 if (hfp_connection->acl_handle != handle) continue; 157 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 158 return hfp_connection; 159 } 160 return NULL; 161 } 162 163 void hfp_ag_register_packet_handler(btstack_packet_handler_t callback){ 164 if (callback == NULL){ 165 log_error("hfp_ag_register_packet_handler called with NULL callback"); 166 return; 167 } 168 hfp_ag_callback = callback; 169 hfp_set_ag_callback(callback); 170 } 171 172 static int use_in_band_tone(void){ 173 return get_bit(hfp_supported_features, HFP_AGSF_IN_BAND_RING_TONE); 174 } 175 176 static int has_codec_negotiation_feature(hfp_connection_t * hfp_connection){ 177 int hf = get_bit(hfp_connection->remote_supported_features, HFP_HFSF_CODEC_NEGOTIATION); 178 int ag = get_bit(hfp_supported_features, HFP_AGSF_CODEC_NEGOTIATION); 179 return hf && ag; 180 } 181 182 static int has_call_waiting_and_3way_calling_feature(hfp_connection_t * hfp_connection){ 183 int hf = get_bit(hfp_connection->remote_supported_features, HFP_HFSF_THREE_WAY_CALLING); 184 int ag = get_bit(hfp_supported_features, HFP_AGSF_THREE_WAY_CALLING); 185 return hf && ag; 186 } 187 188 static int has_hf_indicators_feature(hfp_connection_t * hfp_connection){ 189 int hf = get_bit(hfp_connection->remote_supported_features, HFP_HFSF_HF_INDICATORS); 190 int ag = get_bit(hfp_supported_features, HFP_AGSF_HF_INDICATORS); 191 return hf && ag; 192 } 193 194 void hfp_ag_create_sdp_record(uint8_t * service, uint32_t service_record_handle, int rfcomm_channel_nr, const char * name, uint8_t ability_to_reject_call, uint16_t supported_features, int wide_band_speech){ 195 if (!name){ 196 name = default_hfp_ag_service_name; 197 } 198 hfp_create_sdp_record(service, service_record_handle, BLUETOOTH_SERVICE_CLASS_HANDSFREE_AUDIO_GATEWAY, rfcomm_channel_nr, name); 199 200 /* 201 * 0x01 – Ability to reject a call 202 * 0x00 – No ability to reject a call 203 */ 204 de_add_number(service, DE_UINT, DE_SIZE_16, 0x0301); // Hands-Free Profile - Network 205 de_add_number(service, DE_UINT, DE_SIZE_8, ability_to_reject_call); 206 207 // Construct SupportedFeatures for SDP bitmap: 208 // 209 // "The values of the “SupportedFeatures” bitmap given in Table 5.4 shall be the same as the values 210 // of the Bits 0 to 4 of the unsolicited result code +BRSF" 211 // 212 // Wide band speech (bit 5) requires Codec negotiation 213 // 214 uint16_t sdp_features = supported_features & 0x1f; 215 if (wide_band_speech && (supported_features & (1 << HFP_AGSF_CODEC_NEGOTIATION))){ 216 sdp_features |= 1 << 5; 217 } 218 de_add_number(service, DE_UINT, DE_SIZE_16, 0x0311); // Hands-Free Profile - SupportedFeatures 219 de_add_number(service, DE_UINT, DE_SIZE_16, sdp_features); 220 } 221 222 static int hfp_ag_send_change_in_band_ring_tone_setting_cmd(uint16_t cid){ 223 char buffer[20]; 224 sprintf(buffer, "\r\n%s:%d\r\n", HFP_CHANGE_IN_BAND_RING_TONE_SETTING, use_in_band_tone()); 225 return send_str_over_rfcomm(cid, buffer); 226 } 227 228 static int hfp_ag_exchange_supported_features_cmd(uint16_t cid){ 229 char buffer[40]; 230 sprintf(buffer, "\r\n%s:%d\r\n\r\nOK\r\n", HFP_SUPPORTED_FEATURES, hfp_supported_features); 231 return send_str_over_rfcomm(cid, buffer); 232 } 233 234 static int hfp_ag_send_ok(uint16_t cid){ 235 char buffer[10]; 236 sprintf(buffer, "\r\nOK\r\n"); 237 return send_str_over_rfcomm(cid, buffer); 238 } 239 240 static int hfp_ag_send_ring(uint16_t cid){ 241 return send_str_over_rfcomm(cid, (char *) "\r\nRING\r\n"); 242 } 243 244 static int hfp_ag_send_clip(uint16_t cid){ 245 char buffer[50]; 246 sprintf(buffer, "\r\n%s: \"%s\",%u\r\n", HFP_ENABLE_CLIP, hfp_gsm_clip_number(), hfp_gsm_clip_type()); 247 return send_str_over_rfcomm(cid, buffer); 248 } 249 250 static int hfp_send_subscriber_number_cmd(uint16_t cid, uint8_t type, const char * number){ 251 char buffer[50]; 252 sprintf(buffer, "\r\n%s: ,\"%s\",%u, , \r\n", HFP_SUBSCRIBER_NUMBER_INFORMATION, number, type); 253 return send_str_over_rfcomm(cid, buffer); 254 } 255 256 static int hfp_ag_send_phone_number_for_voice_tag_cmd(uint16_t cid){ 257 char buffer[50]; 258 sprintf(buffer, "\r\n%s: %s\r\n", HFP_PHONE_NUMBER_FOR_VOICE_TAG, hfp_gsm_clip_number()); 259 return send_str_over_rfcomm(cid, buffer); 260 } 261 262 static int hfp_ag_send_call_waiting_notification(uint16_t cid){ 263 char buffer[50]; 264 sprintf(buffer, "\r\n%s: \"%s\",%u\r\n", HFP_ENABLE_CALL_WAITING_NOTIFICATION, hfp_gsm_clip_number(), hfp_gsm_clip_type()); 265 return send_str_over_rfcomm(cid, buffer); 266 } 267 268 static int hfp_ag_send_error(uint16_t cid){ 269 char buffer[10]; 270 sprintf(buffer, "\r\nERROR\r\n"); 271 return send_str_over_rfcomm(cid, buffer); 272 } 273 274 static int hfp_ag_send_report_extended_audio_gateway_error(uint16_t cid, uint8_t error){ 275 char buffer[20]; 276 sprintf(buffer, "\r\n%s=%d\r\n", HFP_EXTENDED_AUDIO_GATEWAY_ERROR, error); 277 return send_str_over_rfcomm(cid, buffer); 278 } 279 280 // get size for indicator string 281 static int hfp_ag_indicators_string_size(hfp_connection_t * hfp_connection, int i){ 282 // template: ("$NAME",($MIN,$MAX)) 283 return 8 + (int) strlen(hfp_ag_get_ag_indicators(hfp_connection)[i].name) 284 + string_len_for_uint32(hfp_ag_get_ag_indicators(hfp_connection)[i].min_range) 285 + string_len_for_uint32(hfp_ag_get_ag_indicators(hfp_connection)[i].min_range); 286 } 287 288 // store indicator 289 static void hfp_ag_indicators_string_store(hfp_connection_t * hfp_connection, int i, uint8_t * buffer){ 290 sprintf((char *) buffer, "(\"%s\",(%d,%d)),", 291 hfp_ag_get_ag_indicators(hfp_connection)[i].name, 292 hfp_ag_get_ag_indicators(hfp_connection)[i].min_range, 293 hfp_ag_get_ag_indicators(hfp_connection)[i].max_range); 294 } 295 296 // structure: header [indicator [comma indicator]] footer 297 static int hfp_ag_indicators_cmd_generator_num_segments(hfp_connection_t * hfp_connection){ 298 int num_indicators = hfp_ag_get_ag_indicators_nr(hfp_connection); 299 if (!num_indicators) return 2; 300 return 3 + (num_indicators-1) * 2; 301 } 302 303 // get size of individual segment for hfp_ag_retrieve_indicators_cmd 304 static int hfp_ag_indicators_cmd_generator_get_segment_len(hfp_connection_t * hfp_connection, int index){ 305 if (index == 0) { 306 return strlen(HFP_INDICATOR) + 3; // "\n\r%s:"" 307 } 308 index--; 309 int num_indicators = hfp_ag_get_ag_indicators_nr(hfp_connection); 310 int indicator_index = index >> 1; 311 if ((index & 1) == 0){ 312 return hfp_ag_indicators_string_size(hfp_connection, indicator_index); 313 } 314 if (indicator_index == num_indicators - 1){ 315 return 8; // "\r\n\r\nOK\r\n" 316 } 317 return 1; // comma 318 } 319 320 static void hgp_ag_indicators_cmd_generator_store_segment(hfp_connection_t * hfp_connection, int index, uint8_t * buffer){ 321 if (index == 0){ 322 *buffer++ = '\r'; 323 *buffer++ = '\n'; 324 int len = strlen(HFP_INDICATOR); 325 memcpy(buffer, HFP_INDICATOR, len); 326 buffer += len; 327 *buffer++ = ':'; 328 return; 329 } 330 index--; 331 int num_indicators = hfp_ag_get_ag_indicators_nr(hfp_connection); 332 int indicator_index = index >> 1; 333 if ((index & 1) == 0){ 334 hfp_ag_indicators_string_store(hfp_connection, indicator_index, buffer); 335 return; 336 } 337 if (indicator_index == num_indicators-1){ 338 memcpy(buffer, "\r\n\r\nOK\r\n", 8); 339 return; 340 } 341 *buffer = ','; 342 } 343 344 static int hfp_hf_indicators_join(char * buffer, int buffer_size){ 345 if (buffer_size < hfp_ag_indicators_nr * 3) return 0; 346 int i; 347 int offset = 0; 348 for (i = 0; i < hfp_generic_status_indicators_nr-1; i++) { 349 offset += snprintf(buffer+offset, buffer_size-offset, "%d,", hfp_generic_status_indicators[i].uuid); 350 } 351 if (i < hfp_generic_status_indicators_nr){ 352 offset += snprintf(buffer+offset, buffer_size-offset, "%d,", hfp_generic_status_indicators[i].uuid); 353 } 354 return offset; 355 } 356 357 static int hfp_hf_indicators_initial_status_join(char * buffer, int buffer_size){ 358 if (buffer_size < hfp_generic_status_indicators_nr * 3) return 0; 359 int i; 360 int offset = 0; 361 for (i = 0; i < hfp_generic_status_indicators_nr; i++) { 362 offset += snprintf(buffer+offset, buffer_size-offset, "\r\n%s:%d,%d\r\n", HFP_GENERIC_STATUS_INDICATOR, hfp_generic_status_indicators[i].uuid, hfp_generic_status_indicators[i].state); 363 } 364 return offset; 365 } 366 367 static int hfp_ag_indicators_status_join(char * buffer, int buffer_size){ 368 if (buffer_size < hfp_ag_indicators_nr * 3) return 0; 369 int i; 370 int offset = 0; 371 for (i = 0; i < hfp_ag_indicators_nr-1; i++) { 372 offset += snprintf(buffer+offset, buffer_size-offset, "%d,", hfp_ag_indicators[i].status); 373 } 374 if (i<hfp_ag_indicators_nr){ 375 offset += snprintf(buffer+offset, buffer_size-offset, "%d", hfp_ag_indicators[i].status); 376 } 377 return offset; 378 } 379 380 static int hfp_ag_call_services_join(char * buffer, int buffer_size){ 381 if (buffer_size < hfp_ag_call_hold_services_nr * 3) return 0; 382 int i; 383 int offset = snprintf(buffer, buffer_size, "("); 384 for (i = 0; i < hfp_ag_call_hold_services_nr-1; i++) { 385 offset += snprintf(buffer+offset, buffer_size-offset, "%s,", hfp_ag_call_hold_services[i]); 386 } 387 if (i<hfp_ag_call_hold_services_nr){ 388 offset += snprintf(buffer+offset, buffer_size-offset, "%s)", hfp_ag_call_hold_services[i]); 389 } 390 return offset; 391 } 392 393 static int hfp_ag_send_cmd_via_generator(uint16_t cid, hfp_connection_t * hfp_connection, 394 int start_segment, int num_segments, 395 int (*get_segment_len)(hfp_connection_t * hfp_connection, int segment), 396 void (*store_segment) (hfp_connection_t * hfp_connection, int segment, uint8_t * buffer)){ 397 398 // assumes: can send now == true 399 // assumes: num segments > 0 400 // assumes: individual segments are smaller than MTU 401 rfcomm_reserve_packet_buffer(); 402 int mtu = rfcomm_get_max_frame_size(cid); 403 uint8_t * data = rfcomm_get_outgoing_buffer(); 404 int offset = 0; 405 int segment = start_segment; 406 while (segment < num_segments){ 407 int segment_len = get_segment_len(hfp_connection, segment); 408 if (offset + segment_len > mtu) break; 409 // append segement 410 store_segment(hfp_connection, segment, data+offset); 411 offset += segment_len; 412 segment++; 413 } 414 rfcomm_send_prepared(cid, offset); 415 return segment; 416 } 417 418 // returns next segment to store 419 static int hfp_ag_send_retrieve_indicators_cmd_via_generator(uint16_t cid, hfp_connection_t * hfp_connection, int start_segment){ 420 int num_segments = hfp_ag_indicators_cmd_generator_num_segments(hfp_connection); 421 return hfp_ag_send_cmd_via_generator(cid, hfp_connection, start_segment, num_segments, 422 hfp_ag_indicators_cmd_generator_get_segment_len, hgp_ag_indicators_cmd_generator_store_segment); 423 } 424 425 static int hfp_ag_send_retrieve_indicators_status_cmd(uint16_t cid){ 426 char buffer[40]; 427 const int size = sizeof(buffer); 428 int offset = snprintf(buffer, size, "\r\n%s:", HFP_INDICATOR); 429 offset += hfp_ag_indicators_status_join(buffer+offset, size-offset-9); 430 offset += snprintf(buffer+offset, size-offset, "\r\n\r\nOK\r\n"); 431 return send_str_over_rfcomm(cid, buffer); 432 } 433 434 static int hfp_ag_send_retrieve_can_hold_call_cmd(uint16_t cid){ 435 char buffer[40]; 436 const int size = sizeof(buffer); 437 int offset = snprintf(buffer, size, "\r\n%s:", HFP_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES); 438 offset += hfp_ag_call_services_join(buffer+offset, size-offset-9); 439 offset += snprintf(buffer+offset, size-offset, "\r\n\r\nOK\r\n"); 440 return send_str_over_rfcomm(cid, buffer); 441 } 442 443 444 static int hfp_ag_send_list_supported_generic_status_indicators_cmd(uint16_t cid){ 445 return hfp_ag_send_ok(cid); 446 } 447 448 static int hfp_ag_send_retrieve_supported_generic_status_indicators_cmd(uint16_t cid){ 449 char buffer[40]; 450 const int size = sizeof(buffer); 451 int offset = snprintf(buffer, size, "\r\n%s:(", HFP_GENERIC_STATUS_INDICATOR); 452 offset += hfp_hf_indicators_join(buffer+offset, size-offset-10); 453 offset += snprintf(buffer+offset, size-offset, ")\r\n\r\nOK\r\n"); 454 return send_str_over_rfcomm(cid, buffer); 455 } 456 457 static int hfp_ag_send_retrieve_initital_supported_generic_status_indicators_cmd(uint16_t cid){ 458 char buffer[40]; 459 int offset = hfp_hf_indicators_initial_status_join(buffer, sizeof(buffer) - 7); 460 snprintf(buffer+offset, sizeof(buffer)-offset, "\r\nOK\r\n"); 461 return send_str_over_rfcomm(cid, buffer); 462 } 463 464 static int hfp_ag_send_transfer_ag_indicators_status_cmd(uint16_t cid, hfp_ag_indicator_t * indicator){ 465 char buffer[20]; 466 sprintf(buffer, "\r\n%s:%d,%d\r\n", HFP_TRANSFER_AG_INDICATOR_STATUS, indicator->index, indicator->status); 467 return send_str_over_rfcomm(cid, buffer); 468 } 469 470 static int hfp_ag_send_report_network_operator_name_cmd(uint16_t cid, hfp_network_opearator_t op){ 471 char buffer[41]; 472 if (strlen(op.name) == 0){ 473 snprintf(buffer, sizeof(buffer), "\r\n%s:%d,,\r\n\r\nOK\r\n", HFP_QUERY_OPERATOR_SELECTION, op.mode); 474 } else { 475 int offset = snprintf(buffer, sizeof(buffer), "\r\n%s:%d,%d,", HFP_QUERY_OPERATOR_SELECTION, op.mode, op.format); 476 offset += snprintf(buffer+offset, 16, "%s", op.name); 477 snprintf(buffer+offset, sizeof(buffer)-offset, "\r\n\r\nOK\r\n"); 478 } 479 return send_str_over_rfcomm(cid, buffer); 480 } 481 482 static inline int hfp_ag_send_cmd_with_int(uint16_t cid, const char * cmd, uint8_t value){ 483 char buffer[30]; 484 snprintf(buffer, sizeof(buffer), "\r\n%s:%d\r\n", cmd, value); 485 return send_str_over_rfcomm(cid, buffer); 486 } 487 488 static int hfp_ag_send_suggest_codec_cmd(uint16_t cid, uint8_t codec){ 489 return hfp_ag_send_cmd_with_int(cid, HFP_CONFIRM_COMMON_CODEC, codec); 490 } 491 492 static int hfp_ag_send_activate_voice_recognition_cmd(uint16_t cid, uint8_t activate_voice_recognition){ 493 return hfp_ag_send_cmd_with_int(cid, HFP_ACTIVATE_VOICE_RECOGNITION, activate_voice_recognition); 494 } 495 496 static int hfp_ag_send_set_speaker_gain_cmd(uint16_t cid, uint8_t gain){ 497 return hfp_ag_send_cmd_with_int(cid, HFP_SET_SPEAKER_GAIN, gain); 498 } 499 500 static int hfp_ag_send_set_microphone_gain_cmd(uint16_t cid, uint8_t gain){ 501 return hfp_ag_send_cmd_with_int(cid, HFP_SET_MICROPHONE_GAIN, gain); 502 } 503 504 static int hfp_ag_send_set_response_and_hold(uint16_t cid, int state){ 505 return hfp_ag_send_cmd_with_int(cid, HFP_RESPONSE_AND_HOLD, state); 506 } 507 508 static uint8_t hfp_ag_suggest_codec(hfp_connection_t *hfp_connection){ 509 if (hfp_connection->sco_for_msbc_failed) return HFP_CODEC_CVSD; 510 511 if (hfp_supports_codec(HFP_CODEC_MSBC, hfp_codecs_nr, hfp_codecs)){ 512 if (hfp_supports_codec(HFP_CODEC_MSBC, hfp_connection->remote_codecs_nr, hfp_connection->remote_codecs)){ 513 return HFP_CODEC_MSBC; 514 } 515 } 516 return HFP_CODEC_CVSD; 517 } 518 519 static uint8_t hfp_ag_esco_s4_supported(hfp_connection_t * hfp_connection){ 520 return (hfp_connection->remote_supported_features & (1<<HFP_HFSF_ESCO_S4)) && (hfp_supported_features & (1<<HFP_AGSF_ESCO_S4)); 521 } 522 523 static int codecs_exchange_state_machine(hfp_connection_t * hfp_connection){ 524 /* events ( == commands): 525 HFP_CMD_AVAILABLE_CODECS == received AT+BAC with list of codecs 526 HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP: 527 hf_trigger_codec_connection_setup == received BCC 528 ag_trigger_codec_connection_setup == received from AG to send BCS 529 HFP_CMD_HF_CONFIRMED_CODEC == received AT+BCS 530 */ 531 532 switch (hfp_connection->codecs_state){ 533 case HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE: 534 hfp_connection->command = HFP_CMD_AG_SEND_COMMON_CODEC; 535 break; 536 case HFP_CODECS_AG_RESEND_COMMON_CODEC: 537 hfp_connection->command = HFP_CMD_AG_SEND_COMMON_CODEC; 538 break; 539 default: 540 break; 541 } 542 543 // printf(" -> State machine: CC\n"); 544 545 switch (hfp_connection->command){ 546 case HFP_CMD_AVAILABLE_CODECS: 547 if (hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED){ 548 hfp_connection->codecs_state = HFP_CODECS_RECEIVED_LIST; 549 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 550 return 1; 551 } 552 553 switch (hfp_connection->codecs_state){ 554 case HFP_CODECS_AG_SENT_COMMON_CODEC: 555 case HFP_CODECS_EXCHANGED: 556 hfp_connection->codecs_state = HFP_CODECS_AG_RESEND_COMMON_CODEC; 557 break; 558 default: 559 break; 560 } 561 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 562 return 1; 563 564 case HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP: 565 hfp_connection->codecs_state = HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE; 566 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 567 return 1; 568 569 case HFP_CMD_AG_SEND_COMMON_CODEC: 570 hfp_connection->codecs_state = HFP_CODECS_AG_SENT_COMMON_CODEC; 571 hfp_connection->suggested_codec = hfp_ag_suggest_codec(hfp_connection); 572 hfp_ag_send_suggest_codec_cmd(hfp_connection->rfcomm_cid, hfp_connection->suggested_codec); 573 return 1; 574 575 case HFP_CMD_HF_CONFIRMED_CODEC: 576 if (hfp_connection->codec_confirmed != hfp_connection->suggested_codec){ 577 hfp_connection->codecs_state = HFP_CODECS_ERROR; 578 hfp_ag_send_error(hfp_connection->rfcomm_cid); 579 return 1; 580 } 581 hfp_connection->negotiated_codec = hfp_connection->codec_confirmed; 582 hfp_connection->codecs_state = HFP_CODECS_EXCHANGED; 583 log_info("hfp: codec confirmed: %s", hfp_connection->negotiated_codec == HFP_CODEC_MSBC ? "mSBC" : "CVSD"); 584 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 585 // now, pick link settings 586 587 hfp_init_link_settings(hfp_connection, hfp_ag_esco_s4_supported(hfp_connection)); 588 return 1; 589 default: 590 break; 591 } 592 return 0; 593 } 594 595 static void hfp_ag_slc_established(hfp_connection_t * hfp_connection){ 596 hfp_connection->state = HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED; 597 hfp_emit_slc_connection_event(hfp_connection, 0, hfp_connection->acl_handle, hfp_connection->remote_addr); 598 599 // if active call exist, set per-hfp_connection state active, too (when audio is on) 600 if (hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT){ 601 hfp_connection->call_state = HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE; 602 } 603 // if AG is ringing, also start ringing on the HF 604 if (hfp_gsm_call_status() == HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS && 605 hfp_gsm_callsetup_status() == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS){ 606 hfp_ag_hf_start_ringing(hfp_connection); 607 } 608 } 609 610 static int hfp_ag_run_for_context_service_level_connection(hfp_connection_t * hfp_connection){ 611 // log_info("hfp_ag_run_for_context_service_level_connection state %u, command %u", hfp_connection->state, hfp_connection->command); 612 if (hfp_connection->state >= HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) return 0; 613 int sent = 0; 614 switch(hfp_connection->command){ 615 case HFP_CMD_SUPPORTED_FEATURES: 616 switch(hfp_connection->state){ 617 case HFP_W4_EXCHANGE_SUPPORTED_FEATURES: 618 case HFP_EXCHANGE_SUPPORTED_FEATURES: 619 hfp_hf_drop_mSBC_if_eSCO_not_supported(hfp_codecs, &hfp_codecs_nr); 620 if (has_codec_negotiation_feature(hfp_connection)){ 621 hfp_connection->state = HFP_W4_NOTIFY_ON_CODECS; 622 } else { 623 hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS; 624 } 625 hfp_ag_exchange_supported_features_cmd(hfp_connection->rfcomm_cid); 626 return 1; 627 default: 628 break; 629 } 630 break; 631 case HFP_CMD_AVAILABLE_CODECS: 632 sent = codecs_exchange_state_machine(hfp_connection); 633 if (hfp_connection->codecs_state == HFP_CODECS_RECEIVED_LIST){ 634 hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS; 635 } 636 return sent; 637 638 case HFP_CMD_RETRIEVE_AG_INDICATORS: 639 if (hfp_connection->state == HFP_W4_RETRIEVE_INDICATORS) { 640 // HF requested AG Indicators and we did expect it 641 hfp_connection->state = HFP_RETRIEVE_INDICATORS; 642 // continue below in state switch 643 } 644 break; 645 646 case HFP_CMD_RETRIEVE_AG_INDICATORS_STATUS: 647 if (hfp_connection->state != HFP_W4_RETRIEVE_INDICATORS_STATUS) break; 648 hfp_connection->state = HFP_W4_ENABLE_INDICATORS_STATUS_UPDATE; 649 hfp_ag_send_retrieve_indicators_status_cmd(hfp_connection->rfcomm_cid); 650 return 1; 651 652 case HFP_CMD_ENABLE_INDICATOR_STATUS_UPDATE: 653 if (hfp_connection->state != HFP_W4_ENABLE_INDICATORS_STATUS_UPDATE) break; 654 if (has_call_waiting_and_3way_calling_feature(hfp_connection)){ 655 hfp_connection->state = HFP_W4_RETRIEVE_CAN_HOLD_CALL; 656 } else if (has_hf_indicators_feature(hfp_connection)){ 657 hfp_connection->state = HFP_W4_LIST_GENERIC_STATUS_INDICATORS; 658 } else { 659 hfp_ag_slc_established(hfp_connection); 660 } 661 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 662 return 1; 663 664 case HFP_CMD_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES: 665 if (hfp_connection->state != HFP_W4_RETRIEVE_CAN_HOLD_CALL) break; 666 if (has_hf_indicators_feature(hfp_connection)){ 667 hfp_connection->state = HFP_W4_LIST_GENERIC_STATUS_INDICATORS; 668 } 669 hfp_ag_send_retrieve_can_hold_call_cmd(hfp_connection->rfcomm_cid); 670 if (!has_hf_indicators_feature(hfp_connection)){ 671 hfp_ag_slc_established(hfp_connection); 672 } 673 return 1; 674 675 case HFP_CMD_LIST_GENERIC_STATUS_INDICATORS: 676 if (hfp_connection->state != HFP_W4_LIST_GENERIC_STATUS_INDICATORS) break; 677 hfp_connection->state = HFP_W4_RETRIEVE_GENERIC_STATUS_INDICATORS; 678 hfp_ag_send_list_supported_generic_status_indicators_cmd(hfp_connection->rfcomm_cid); 679 return 1; 680 681 case HFP_CMD_RETRIEVE_GENERIC_STATUS_INDICATORS: 682 if (hfp_connection->state != HFP_W4_RETRIEVE_GENERIC_STATUS_INDICATORS) break; 683 hfp_connection->state = HFP_W4_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS; 684 hfp_ag_send_retrieve_supported_generic_status_indicators_cmd(hfp_connection->rfcomm_cid); 685 return 1; 686 687 case HFP_CMD_RETRIEVE_GENERIC_STATUS_INDICATORS_STATE: 688 if (hfp_connection->state != HFP_W4_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS) break; 689 hfp_ag_slc_established(hfp_connection); 690 hfp_ag_send_retrieve_initital_supported_generic_status_indicators_cmd(hfp_connection->rfcomm_cid); 691 return 1; 692 default: 693 break; 694 } 695 696 switch (hfp_connection->state){ 697 case HFP_RETRIEVE_INDICATORS: { 698 int next_segment = hfp_ag_send_retrieve_indicators_cmd_via_generator(hfp_connection->rfcomm_cid, hfp_connection, hfp_connection->send_ag_indicators_segment); 699 int num_segments = hfp_ag_indicators_cmd_generator_num_segments(hfp_connection); 700 log_info("HFP_CMD_RETRIEVE_AG_INDICATORS next segment %u, num_segments %u", next_segment, num_segments); 701 if (next_segment < num_segments){ 702 // prepare sending of next segment 703 hfp_connection->send_ag_indicators_segment = next_segment; 704 log_info("HFP_CMD_RETRIEVE_AG_INDICATORS more. command %u, next seg %u", hfp_connection->command, next_segment); 705 } else { 706 // done, go to next state 707 hfp_connection->send_ag_indicators_segment = 0; 708 hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS_STATUS; 709 } 710 return 1; 711 } 712 default: 713 break; 714 } 715 return 0; 716 } 717 718 static int hfp_ag_run_for_context_service_level_connection_queries(hfp_connection_t * hfp_connection){ 719 int sent = codecs_exchange_state_machine(hfp_connection); 720 if (sent) return 1; 721 722 switch(hfp_connection->command){ 723 case HFP_CMD_AG_ACTIVATE_VOICE_RECOGNITION: 724 hfp_supported_features = store_bit(hfp_supported_features, HFP_AGSF_VOICE_RECOGNITION_FUNCTION, hfp_connection->ag_activate_voice_recognition); 725 hfp_ag_send_activate_voice_recognition_cmd(hfp_connection->rfcomm_cid, hfp_connection->ag_activate_voice_recognition); 726 return 1; 727 case HFP_CMD_HF_ACTIVATE_VOICE_RECOGNITION: 728 if (get_bit(hfp_supported_features, HFP_AGSF_VOICE_RECOGNITION_FUNCTION)){ 729 hfp_supported_features = store_bit(hfp_supported_features, HFP_AGSF_VOICE_RECOGNITION_FUNCTION, hfp_connection->ag_activate_voice_recognition); 730 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 731 hfp_ag_setup_audio_connection(hfp_connection); 732 } else { 733 hfp_ag_send_error(hfp_connection->rfcomm_cid); 734 } 735 return 1; 736 case HFP_CMD_CHANGE_IN_BAND_RING_TONE_SETTING: 737 hfp_ag_send_change_in_band_ring_tone_setting_cmd(hfp_connection->rfcomm_cid); 738 return 1; 739 case HFP_CMD_QUERY_OPERATOR_SELECTION_NAME: 740 hfp_ag_send_report_network_operator_name_cmd(hfp_connection->rfcomm_cid, hfp_connection->network_operator); 741 return 1; 742 case HFP_CMD_QUERY_OPERATOR_SELECTION_NAME_FORMAT: 743 if (hfp_connection->network_operator.format != 0){ 744 hfp_ag_send_error(hfp_connection->rfcomm_cid); 745 } else { 746 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 747 } 748 return 1; 749 case HFP_CMD_ENABLE_INDIVIDUAL_AG_INDICATOR_STATUS_UPDATE: 750 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 751 return 1; 752 case HFP_CMD_ENABLE_EXTENDED_AUDIO_GATEWAY_ERROR: 753 if (hfp_connection->extended_audio_gateway_error){ 754 hfp_connection->extended_audio_gateway_error = 0; 755 hfp_ag_send_report_extended_audio_gateway_error(hfp_connection->rfcomm_cid, hfp_connection->extended_audio_gateway_error_value); 756 return 1; 757 } 758 break; 759 case HFP_CMD_ENABLE_INDICATOR_STATUS_UPDATE: 760 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 761 return 1; 762 default: 763 break; 764 } 765 return 0; 766 } 767 768 static int hfp_ag_run_for_audio_connection(hfp_connection_t * hfp_connection){ 769 if (hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED || 770 hfp_connection->state > HFP_W2_DISCONNECT_SCO) return 0; 771 772 773 if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED && hfp_connection->release_audio_connection){ 774 hfp_connection->state = HFP_W4_SCO_DISCONNECTED; 775 hfp_connection->release_audio_connection = 0; 776 gap_disconnect(hfp_connection->sco_handle); 777 return 1; 778 } 779 780 if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED) return 0; 781 782 // run codecs exchange 783 int sent = codecs_exchange_state_machine(hfp_connection); 784 if (sent) return 1; 785 786 if (hfp_connection->codecs_state != HFP_CODECS_EXCHANGED) return 0; 787 if (hfp_connection->establish_audio_connection){ 788 hfp_connection->state = HFP_W4_SCO_CONNECTED; 789 hfp_connection->establish_audio_connection = 0; 790 hfp_setup_synchronous_connection(hfp_connection); 791 return 1; 792 } 793 return 0; 794 } 795 796 static hfp_connection_t * hfp_ag_context_for_timer(btstack_timer_source_t * ts){ 797 btstack_linked_list_iterator_t it; 798 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 799 800 while (btstack_linked_list_iterator_has_next(&it)){ 801 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 802 if ( & hfp_connection->hfp_timeout == ts) { 803 return hfp_connection; 804 } 805 } 806 return NULL; 807 } 808 809 static void hfp_timeout_handler(btstack_timer_source_t * timer){ 810 hfp_connection_t * hfp_connection = hfp_ag_context_for_timer(timer); 811 if (!hfp_connection) return; 812 813 log_info("HFP start ring timeout, con handle 0x%02x", hfp_connection->acl_handle); 814 hfp_connection->ag_ring = 1; 815 hfp_connection->ag_send_clip = hfp_gsm_clip_type() && hfp_connection->clip_enabled; 816 817 btstack_run_loop_set_timer(& hfp_connection->hfp_timeout, 2000); // 2 seconds timeout 818 btstack_run_loop_add_timer(& hfp_connection->hfp_timeout); 819 820 hfp_ag_run_for_context(hfp_connection); 821 } 822 823 static void hfp_timeout_start(hfp_connection_t * hfp_connection){ 824 btstack_run_loop_remove_timer(& hfp_connection->hfp_timeout); 825 btstack_run_loop_set_timer_handler(& hfp_connection->hfp_timeout, hfp_timeout_handler); 826 btstack_run_loop_set_timer(& hfp_connection->hfp_timeout, 2000); // 2 seconds timeout 827 btstack_run_loop_add_timer(& hfp_connection->hfp_timeout); 828 } 829 830 static void hfp_timeout_stop(hfp_connection_t * hfp_connection){ 831 log_info("HFP stop ring timeout, con handle 0x%02x", hfp_connection->acl_handle); 832 btstack_run_loop_remove_timer(& hfp_connection->hfp_timeout); 833 } 834 835 // 836 // transitition implementations for hfp_ag_call_state_machine 837 // 838 839 static void hfp_ag_hf_start_ringing(hfp_connection_t * hfp_connection){ 840 if (use_in_band_tone()){ 841 hfp_connection->call_state = HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING; 842 hfp_ag_establish_audio_connection(hfp_connection->acl_handle); 843 } else { 844 hfp_timeout_start(hfp_connection); 845 hfp_connection->ag_ring = 1; 846 hfp_connection->ag_send_clip = hfp_gsm_clip_type() && hfp_connection->clip_enabled; 847 hfp_connection->call_state = HFP_CALL_RINGING; 848 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_START_RINGINIG); 849 } 850 } 851 852 static void hfp_ag_hf_stop_ringing(hfp_connection_t * hfp_connection){ 853 hfp_connection->ag_ring = 0; 854 hfp_connection->ag_send_clip = 0; 855 hfp_timeout_stop(hfp_connection); 856 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_STOP_RINGINIG); 857 } 858 859 static void hfp_ag_trigger_incoming_call(void){ 860 int indicator_index = get_ag_indicator_index_for_name("callsetup"); 861 if (indicator_index < 0) return; 862 863 btstack_linked_list_iterator_t it; 864 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 865 while (btstack_linked_list_iterator_has_next(&it)){ 866 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 867 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 868 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 869 if (hfp_connection->call_state == HFP_CALL_IDLE){ 870 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 871 hfp_ag_hf_start_ringing(hfp_connection); 872 } 873 if (hfp_connection->call_state == HFP_CALL_ACTIVE){ 874 hfp_connection->call_state = HFP_CALL_W2_SEND_CALL_WAITING; 875 } 876 hfp_ag_run_for_context(hfp_connection); 877 } 878 } 879 880 static void hfp_ag_transfer_callsetup_state(void){ 881 int indicator_index = get_ag_indicator_index_for_name("callsetup"); 882 if (indicator_index < 0) return; 883 884 btstack_linked_list_iterator_t it; 885 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 886 while (btstack_linked_list_iterator_has_next(&it)){ 887 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 888 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 889 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 890 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 891 hfp_ag_run_for_context(hfp_connection); 892 } 893 } 894 895 static void hfp_ag_transfer_call_state(void){ 896 int indicator_index = get_ag_indicator_index_for_name("call"); 897 if (indicator_index < 0) return; 898 899 btstack_linked_list_iterator_t it; 900 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 901 while (btstack_linked_list_iterator_has_next(&it)){ 902 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 903 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 904 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 905 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 906 hfp_ag_run_for_context(hfp_connection); 907 } 908 } 909 910 static void hfp_ag_transfer_callheld_state(void){ 911 int indicator_index = get_ag_indicator_index_for_name("callheld"); 912 if (indicator_index < 0) return; 913 914 btstack_linked_list_iterator_t it; 915 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 916 while (btstack_linked_list_iterator_has_next(&it)){ 917 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 918 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 919 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 920 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 921 hfp_ag_run_for_context(hfp_connection); 922 } 923 } 924 925 static void hfp_ag_hf_accept_call(hfp_connection_t * source){ 926 927 int call_indicator_index = get_ag_indicator_index_for_name("call"); 928 int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup"); 929 930 btstack_linked_list_iterator_t it; 931 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 932 while (btstack_linked_list_iterator_has_next(&it)){ 933 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 934 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 935 if (hfp_connection->call_state != HFP_CALL_RINGING && 936 hfp_connection->call_state != HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING) continue; 937 938 hfp_ag_hf_stop_ringing(hfp_connection); 939 if (hfp_connection == source){ 940 941 if (use_in_band_tone()){ 942 hfp_connection->call_state = HFP_CALL_ACTIVE; 943 } else { 944 hfp_connection->call_state = HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE; 945 hfp_ag_establish_audio_connection(hfp_connection->acl_handle); 946 } 947 948 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 949 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 950 951 } else { 952 hfp_connection->call_state = HFP_CALL_IDLE; 953 } 954 hfp_ag_run_for_context(hfp_connection); 955 } 956 } 957 958 static void hfp_ag_ag_accept_call(void){ 959 960 int call_indicator_index = get_ag_indicator_index_for_name("call"); 961 int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup"); 962 963 btstack_linked_list_iterator_t it; 964 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 965 while (btstack_linked_list_iterator_has_next(&it)){ 966 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 967 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 968 if (hfp_connection->call_state != HFP_CALL_RINGING) continue; 969 970 hfp_ag_hf_stop_ringing(hfp_connection); 971 hfp_connection->call_state = HFP_CALL_TRIGGER_AUDIO_CONNECTION; 972 973 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 974 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 975 976 hfp_ag_run_for_context(hfp_connection); 977 break; // only single 978 } 979 } 980 981 static void hfp_ag_trigger_reject_call(void){ 982 int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup"); 983 btstack_linked_list_iterator_t it; 984 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 985 while (btstack_linked_list_iterator_has_next(&it)){ 986 hfp_connection_t * connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 987 if (connection->local_role != HFP_ROLE_AG) continue; 988 if (connection->call_state != HFP_CALL_RINGING && 989 connection->call_state != HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING) continue; 990 hfp_ag_hf_stop_ringing(connection); 991 connection->ag_indicators_status_update_bitmap = store_bit(connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 992 connection->call_state = HFP_CALL_IDLE; 993 hfp_ag_run_for_context(connection); 994 } 995 } 996 997 static void hfp_ag_emit_simple_event(uint8_t event_subtype){ 998 uint8_t event[3]; 999 event[0] = HCI_EVENT_HFP_META; 1000 event[1] = sizeof(event) - 2; 1001 event[2] = event_subtype; 1002 if (!hfp_ag_callback) return; 1003 (*hfp_ag_callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 1004 } 1005 1006 static void hfp_ag_trigger_terminate_call(void){ 1007 int call_indicator_index = get_ag_indicator_index_for_name("call"); 1008 1009 btstack_linked_list_iterator_t it; 1010 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1011 while (btstack_linked_list_iterator_has_next(&it)){ 1012 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1013 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1014 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 1015 if (hfp_connection->call_state == HFP_CALL_IDLE) continue; 1016 hfp_connection->call_state = HFP_CALL_IDLE; 1017 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 1018 if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED){ 1019 hfp_connection->release_audio_connection = 1; 1020 } 1021 hfp_ag_run_for_context(hfp_connection); 1022 } 1023 hfp_ag_emit_simple_event(HFP_SUBEVENT_CALL_TERMINATED); 1024 } 1025 1026 static void hfp_ag_set_callsetup_indicator(void){ 1027 hfp_ag_indicator_t * indicator = get_ag_indicator_for_name("callsetup"); 1028 if (!indicator){ 1029 log_error("hfp_ag_set_callsetup_indicator: callsetup indicator is missing"); 1030 return; 1031 }; 1032 indicator->status = hfp_gsm_callsetup_status(); 1033 } 1034 1035 static void hfp_ag_set_callheld_indicator(void){ 1036 hfp_ag_indicator_t * indicator = get_ag_indicator_for_name("callheld"); 1037 if (!indicator){ 1038 log_error("hfp_ag_set_callheld_state: callheld indicator is missing"); 1039 return; 1040 }; 1041 indicator->status = hfp_gsm_callheld_status(); 1042 } 1043 1044 static void hfp_ag_set_call_indicator(void){ 1045 hfp_ag_indicator_t * indicator = get_ag_indicator_for_name("call"); 1046 if (!indicator){ 1047 log_error("hfp_ag_set_call_state: call indicator is missing"); 1048 return; 1049 }; 1050 indicator->status = hfp_gsm_call_status(); 1051 } 1052 1053 static void hfp_ag_stop_ringing(void){ 1054 btstack_linked_list_iterator_t it; 1055 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1056 while (btstack_linked_list_iterator_has_next(&it)){ 1057 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1058 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1059 if (hfp_connection->call_state != HFP_CALL_RINGING && 1060 hfp_connection->call_state != HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING) continue; 1061 hfp_ag_hf_stop_ringing(hfp_connection); 1062 } 1063 } 1064 1065 static hfp_connection_t * hfp_ag_connection_for_call_state(hfp_call_state_t call_state){ 1066 btstack_linked_list_iterator_t it; 1067 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1068 while (btstack_linked_list_iterator_has_next(&it)){ 1069 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1070 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1071 if (hfp_connection->call_state == call_state) return hfp_connection; 1072 } 1073 return NULL; 1074 } 1075 1076 static void hfp_ag_send_response_and_hold_state(hfp_response_and_hold_state_t state){ 1077 btstack_linked_list_iterator_t it; 1078 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1079 while (btstack_linked_list_iterator_has_next(&it)){ 1080 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1081 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1082 hfp_connection->send_response_and_hold_status = state + 1; 1083 } 1084 } 1085 1086 static int call_setup_state_machine(hfp_connection_t * hfp_connection){ 1087 int indicator_index; 1088 switch (hfp_connection->call_state){ 1089 case HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING: 1090 if (hfp_connection->state != HFP_AUDIO_CONNECTION_ESTABLISHED) return 0; 1091 // we got event: audio hfp_connection established 1092 hfp_timeout_start(hfp_connection); 1093 hfp_connection->ag_ring = 1; 1094 hfp_connection->ag_send_clip = hfp_gsm_clip_type() && hfp_connection->clip_enabled; 1095 hfp_connection->call_state = HFP_CALL_RINGING; 1096 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_START_RINGINIG); 1097 break; 1098 case HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE: 1099 if (hfp_connection->state != HFP_AUDIO_CONNECTION_ESTABLISHED) return 0; 1100 // we got event: audio hfp_connection established 1101 hfp_connection->call_state = HFP_CALL_ACTIVE; 1102 break; 1103 case HFP_CALL_W2_SEND_CALL_WAITING: 1104 hfp_connection->call_state = HFP_CALL_W4_CHLD; 1105 hfp_ag_send_call_waiting_notification(hfp_connection->rfcomm_cid); 1106 indicator_index = get_ag_indicator_index_for_name("callsetup"); 1107 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 1108 break; 1109 default: 1110 break; 1111 } 1112 return 0; 1113 } 1114 1115 // functions extracted from hfp_ag_call_sm below 1116 static void hfp_ag_handle_reject_incoming_call(void){ 1117 hfp_connection_t * hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_INITIATED); 1118 if (!hfp_connection){ 1119 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection in initiated state"); 1120 return; 1121 } 1122 1123 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_REJECTED); 1124 hfp_connection->call_state = HFP_CALL_IDLE; 1125 hfp_connection->send_error = 1; 1126 hfp_ag_run_for_context(hfp_connection); 1127 } 1128 1129 // hfp_connection is used to identify originating HF 1130 static void hfp_ag_call_sm(hfp_ag_call_event_t event, hfp_connection_t * hfp_connection){ 1131 int indicator_index; 1132 int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup"); 1133 int callheld_indicator_index = get_ag_indicator_index_for_name("callheld"); 1134 int call_indicator_index = get_ag_indicator_index_for_name("call"); 1135 1136 //printf("hfp_ag_call_sm event %d \n", event); 1137 switch (event){ 1138 case HFP_AG_INCOMING_CALL: 1139 switch (hfp_gsm_call_status()){ 1140 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1141 switch (hfp_gsm_callsetup_status()){ 1142 case HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS: 1143 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL); 1144 hfp_ag_set_callsetup_indicator(); 1145 hfp_ag_trigger_incoming_call(); 1146 log_info("AG rings"); 1147 break; 1148 default: 1149 break; 1150 } 1151 break; 1152 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1153 switch (hfp_gsm_callsetup_status()){ 1154 case HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS: 1155 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL); 1156 hfp_ag_set_callsetup_indicator(); 1157 hfp_ag_trigger_incoming_call(); 1158 log_info("AG call waiting"); 1159 break; 1160 default: 1161 break; 1162 } 1163 break; 1164 } 1165 break; 1166 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG: 1167 switch (hfp_gsm_call_status()){ 1168 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1169 switch (hfp_gsm_callsetup_status()){ 1170 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1171 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG); 1172 hfp_ag_set_call_indicator(); 1173 hfp_ag_set_callsetup_indicator(); 1174 hfp_ag_ag_accept_call(); 1175 log_info("AG answers call, accept call by GSM"); 1176 break; 1177 default: 1178 break; 1179 } 1180 break; 1181 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1182 switch (hfp_gsm_callsetup_status()){ 1183 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1184 log_info("AG: current call is placed on hold, incoming call gets active"); 1185 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG); 1186 hfp_ag_set_callsetup_indicator(); 1187 hfp_ag_set_callheld_indicator(); 1188 hfp_ag_transfer_callsetup_state(); 1189 hfp_ag_transfer_callheld_state(); 1190 break; 1191 default: 1192 break; 1193 } 1194 break; 1195 } 1196 break; 1197 1198 case HFP_AG_HELD_CALL_JOINED_BY_AG: 1199 switch (hfp_gsm_call_status()){ 1200 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1201 switch (hfp_gsm_callheld_status()){ 1202 case HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED: 1203 log_info("AG: joining held call with active call"); 1204 hfp_gsm_handle_event(HFP_AG_HELD_CALL_JOINED_BY_AG); 1205 hfp_ag_set_callheld_indicator(); 1206 hfp_ag_transfer_callheld_state(); 1207 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CONFERENCE_CALL); 1208 break; 1209 default: 1210 break; 1211 } 1212 break; 1213 default: 1214 break; 1215 } 1216 break; 1217 1218 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF: 1219 switch (hfp_gsm_call_status()){ 1220 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1221 switch (hfp_gsm_callsetup_status()){ 1222 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1223 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF); 1224 hfp_ag_set_callsetup_indicator(); 1225 hfp_ag_set_call_indicator(); 1226 hfp_ag_hf_accept_call(hfp_connection); 1227 hfp_connection->ok_pending = 1; 1228 log_info("HF answers call, accept call by GSM"); 1229 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CALL_ANSWERED); 1230 break; 1231 default: 1232 break; 1233 } 1234 break; 1235 default: 1236 break; 1237 } 1238 break; 1239 1240 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG: 1241 switch (hfp_gsm_call_status()){ 1242 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1243 switch (hfp_gsm_callsetup_status()){ 1244 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1245 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG); 1246 hfp_ag_response_and_hold_active = 1; 1247 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD; 1248 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1249 // as with regualr call 1250 hfp_ag_set_call_indicator(); 1251 hfp_ag_set_callsetup_indicator(); 1252 hfp_ag_ag_accept_call(); 1253 log_info("AG response and hold - hold by AG"); 1254 break; 1255 default: 1256 break; 1257 } 1258 break; 1259 default: 1260 break; 1261 } 1262 break; 1263 1264 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF: 1265 switch (hfp_gsm_call_status()){ 1266 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1267 switch (hfp_gsm_callsetup_status()){ 1268 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1269 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF); 1270 hfp_ag_response_and_hold_active = 1; 1271 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD; 1272 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1273 // as with regualr call 1274 hfp_ag_set_call_indicator(); 1275 hfp_ag_set_callsetup_indicator(); 1276 hfp_ag_hf_accept_call(hfp_connection); 1277 log_info("AG response and hold - hold by HF"); 1278 break; 1279 default: 1280 break; 1281 } 1282 break; 1283 default: 1284 break; 1285 } 1286 break; 1287 1288 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG: 1289 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF: 1290 if (!hfp_ag_response_and_hold_active) break; 1291 if (hfp_ag_response_and_hold_state != HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD) break; 1292 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG); 1293 hfp_ag_response_and_hold_active = 0; 1294 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_HELD_INCOMING_ACCEPTED; 1295 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1296 log_info("Held Call accepted and active"); 1297 break; 1298 1299 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG: 1300 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF: 1301 if (!hfp_ag_response_and_hold_active) break; 1302 if (hfp_ag_response_and_hold_state != HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD) break; 1303 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG); 1304 hfp_ag_response_and_hold_active = 0; 1305 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED; 1306 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1307 // from terminate by ag 1308 hfp_ag_set_call_indicator(); 1309 hfp_ag_trigger_terminate_call(); 1310 break; 1311 1312 case HFP_AG_TERMINATE_CALL_BY_HF: 1313 switch (hfp_gsm_call_status()){ 1314 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1315 switch (hfp_gsm_callsetup_status()){ 1316 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1317 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_HF); 1318 hfp_ag_set_callsetup_indicator(); 1319 hfp_ag_transfer_callsetup_state(); 1320 hfp_ag_trigger_reject_call(); 1321 log_info("HF Rejected Incoming call, AG terminate call"); 1322 break; 1323 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE: 1324 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE: 1325 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_HF); 1326 hfp_ag_set_callsetup_indicator(); 1327 hfp_ag_transfer_callsetup_state(); 1328 log_info("AG terminate outgoing call process"); 1329 break; 1330 default: 1331 break; 1332 } 1333 break; 1334 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1335 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_HF); 1336 hfp_ag_set_call_indicator(); 1337 hfp_ag_transfer_call_state(); 1338 hfp_connection->call_state = HFP_CALL_IDLE; 1339 log_info("AG terminate call"); 1340 break; 1341 } 1342 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CALL_TERMINATED); 1343 break; 1344 1345 case HFP_AG_TERMINATE_CALL_BY_AG: 1346 switch (hfp_gsm_call_status()){ 1347 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1348 switch (hfp_gsm_callsetup_status()){ 1349 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1350 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_AG); 1351 hfp_ag_set_callsetup_indicator(); 1352 hfp_ag_trigger_reject_call(); 1353 log_info("AG Rejected Incoming call, AG terminate call"); 1354 break; 1355 default: 1356 break; 1357 } 1358 break; 1359 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1360 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_AG); 1361 hfp_ag_set_callsetup_indicator(); 1362 hfp_ag_set_call_indicator(); 1363 hfp_ag_trigger_terminate_call(); 1364 log_info("AG terminate call"); 1365 break; 1366 default: 1367 break; 1368 } 1369 break; 1370 case HFP_AG_CALL_DROPPED: 1371 switch (hfp_gsm_call_status()){ 1372 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1373 switch (hfp_gsm_callsetup_status()){ 1374 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1375 hfp_ag_stop_ringing(); 1376 log_info("Incoming call interrupted"); 1377 break; 1378 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE: 1379 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE: 1380 log_info("Outgoing call interrupted\n"); 1381 log_info("AG notify call dropped\n"); 1382 break; 1383 default: 1384 break; 1385 } 1386 hfp_gsm_handle_event(HFP_AG_CALL_DROPPED); 1387 hfp_ag_set_callsetup_indicator(); 1388 hfp_ag_transfer_callsetup_state(); 1389 hfp_ag_trigger_terminate_call(); 1390 break; 1391 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1392 if (hfp_ag_response_and_hold_active) { 1393 hfp_gsm_handle_event(HFP_AG_CALL_DROPPED); 1394 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED; 1395 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1396 } 1397 hfp_gsm_handle_event(HFP_AG_CALL_DROPPED); 1398 hfp_ag_set_callsetup_indicator(); 1399 hfp_ag_set_call_indicator(); 1400 hfp_ag_trigger_terminate_call(); 1401 log_info("AG notify call dropped"); 1402 break; 1403 default: 1404 break; 1405 } 1406 break; 1407 1408 case HFP_AG_OUTGOING_CALL_INITIATED: 1409 // directly reject call if number of free slots is exceeded 1410 if (!hfp_gsm_call_possible()){ 1411 hfp_connection->send_error = 1; 1412 hfp_ag_run_for_context(hfp_connection); 1413 break; 1414 } 1415 hfp_gsm_handle_event_with_call_number(HFP_AG_OUTGOING_CALL_INITIATED, (const char *) &hfp_connection->line_buffer[3]); 1416 1417 hfp_connection->call_state = HFP_CALL_OUTGOING_INITIATED; 1418 1419 hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER, (const char *) &hfp_connection->line_buffer[3]); 1420 break; 1421 1422 case HFP_AG_OUTGOING_REDIAL_INITIATED:{ 1423 // directly reject call if number of free slots is exceeded 1424 if (!hfp_gsm_call_possible()){ 1425 hfp_connection->send_error = 1; 1426 hfp_ag_run_for_context(hfp_connection); 1427 break; 1428 } 1429 1430 hfp_gsm_handle_event(HFP_AG_OUTGOING_REDIAL_INITIATED); 1431 hfp_connection->call_state = HFP_CALL_OUTGOING_INITIATED; 1432 1433 log_info("Redial last number"); 1434 char * last_dialed_number = hfp_gsm_last_dialed_number(); 1435 1436 if (strlen(last_dialed_number) > 0){ 1437 log_info("Last number exists: accept call"); 1438 hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER, last_dialed_number); 1439 } else { 1440 log_info("log_infoLast number missing: reject call"); 1441 hfp_ag_handle_reject_incoming_call(); 1442 } 1443 break; 1444 } 1445 case HFP_AG_OUTGOING_CALL_REJECTED: 1446 hfp_ag_handle_reject_incoming_call(); 1447 break; 1448 1449 case HFP_AG_OUTGOING_CALL_ACCEPTED:{ 1450 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_INITIATED); 1451 if (!hfp_connection){ 1452 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection in initiated state"); 1453 break; 1454 } 1455 1456 hfp_connection->ok_pending = 1; 1457 hfp_connection->call_state = HFP_CALL_OUTGOING_DIALING; 1458 1459 // trigger callsetup to be 1460 int put_call_on_hold = hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT; 1461 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_ACCEPTED); 1462 1463 hfp_ag_set_callsetup_indicator(); 1464 indicator_index = get_ag_indicator_index_for_name("callsetup"); 1465 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 1466 1467 // put current call on hold if active 1468 if (put_call_on_hold){ 1469 log_info("AG putting current call on hold for new outgoing calllog_info"); 1470 hfp_ag_set_callheld_indicator(); 1471 indicator_index = get_ag_indicator_index_for_name("callheld"); 1472 hfp_ag_send_transfer_ag_indicators_status_cmd(hfp_connection->rfcomm_cid, &hfp_ag_indicators[indicator_index]); 1473 } 1474 1475 // start audio if needed 1476 hfp_ag_establish_audio_connection(hfp_connection->acl_handle); 1477 break; 1478 } 1479 case HFP_AG_OUTGOING_CALL_RINGING: 1480 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_DIALING); 1481 if (!hfp_connection){ 1482 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection in dialing state"); 1483 break; 1484 } 1485 1486 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_RINGING); 1487 hfp_connection->call_state = HFP_CALL_OUTGOING_RINGING; 1488 hfp_ag_set_callsetup_indicator(); 1489 hfp_ag_transfer_callsetup_state(); 1490 break; 1491 1492 case HFP_AG_OUTGOING_CALL_ESTABLISHED:{ 1493 // get outgoing call 1494 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_RINGING); 1495 if (!hfp_connection){ 1496 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_DIALING); 1497 } 1498 if (!hfp_connection){ 1499 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection"); 1500 break; 1501 } 1502 1503 int CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS = hfp_gsm_callheld_status() == HFP_CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS; 1504 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_ESTABLISHED); 1505 hfp_connection->call_state = HFP_CALL_ACTIVE; 1506 hfp_ag_set_callsetup_indicator(); 1507 hfp_ag_set_call_indicator(); 1508 hfp_ag_transfer_call_state(); 1509 hfp_ag_transfer_callsetup_state(); 1510 if (CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS){ 1511 hfp_ag_set_callheld_indicator(); 1512 hfp_ag_transfer_callheld_state(); 1513 } 1514 break; 1515 } 1516 1517 case HFP_AG_CALL_HOLD_USER_BUSY: 1518 hfp_gsm_handle_event(HFP_AG_CALL_HOLD_USER_BUSY); 1519 hfp_ag_set_callsetup_indicator(); 1520 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 1521 hfp_connection->call_state = HFP_CALL_ACTIVE; 1522 log_info("AG: Call Waiting, User Busy"); 1523 break; 1524 1525 case HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL:{ 1526 int call_setup_in_progress = hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS; 1527 int call_held = hfp_gsm_callheld_status() != HFP_CALLHELD_STATUS_NO_CALLS_HELD; 1528 1529 // Releases all active calls (if any exist) and accepts the other (held or waiting) call. 1530 if (call_held || call_setup_in_progress){ 1531 hfp_gsm_handle_event_with_call_index(HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection->call_index); 1532 1533 } 1534 1535 if (call_setup_in_progress){ 1536 log_info("AG: Call Dropped, Accept new call"); 1537 hfp_ag_set_callsetup_indicator(); 1538 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 1539 } else { 1540 log_info("AG: Call Dropped, Resume held call"); 1541 } 1542 if (call_held){ 1543 hfp_ag_set_callheld_indicator(); 1544 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1545 } 1546 1547 hfp_connection->call_state = HFP_CALL_ACTIVE; 1548 break; 1549 } 1550 1551 case HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL:{ 1552 // Places all active calls (if any exist) on hold and accepts the other (held or waiting) call. 1553 // only update if callsetup changed 1554 int call_setup_in_progress = hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS; 1555 hfp_gsm_handle_event_with_call_index(HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection->call_index); 1556 1557 if (call_setup_in_progress){ 1558 log_info("AG: Call on Hold, Accept new call"); 1559 hfp_ag_set_callsetup_indicator(); 1560 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 1561 } else { 1562 log_info("AG: Swap calls"); 1563 } 1564 1565 hfp_ag_set_callheld_indicator(); 1566 // hfp_ag_set_callheld_state(HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED); 1567 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1568 hfp_connection->call_state = HFP_CALL_ACTIVE; 1569 break; 1570 } 1571 1572 case HFP_AG_CALL_HOLD_ADD_HELD_CALL: 1573 // Adds a held call to the conversation. 1574 if (hfp_gsm_callheld_status() != HFP_CALLHELD_STATUS_NO_CALLS_HELD){ 1575 log_info("AG: Join 3-way-call"); 1576 hfp_gsm_handle_event(HFP_AG_CALL_HOLD_ADD_HELD_CALL); 1577 hfp_ag_set_callheld_indicator(); 1578 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1579 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CONFERENCE_CALL); 1580 } 1581 hfp_connection->call_state = HFP_CALL_ACTIVE; 1582 break; 1583 case HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS: 1584 // Connects the two calls and disconnects the subscriber from both calls (Explicit Call Transfer) 1585 hfp_gsm_handle_event(HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS); 1586 log_info("AG: Transfer call -> Connect two calls and disconnect"); 1587 hfp_ag_set_call_indicator(); 1588 hfp_ag_set_callheld_indicator(); 1589 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 1590 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1591 hfp_connection->call_state = HFP_CALL_IDLE; 1592 break; 1593 1594 default: 1595 break; 1596 } 1597 1598 1599 } 1600 1601 1602 static void hfp_ag_send_call_status(hfp_connection_t * hfp_connection, int call_index){ 1603 hfp_gsm_call_t * active_call = hfp_gsm_call(call_index); 1604 if (!active_call) return; 1605 1606 int idx = active_call->index; 1607 hfp_enhanced_call_dir_t dir = active_call->direction; 1608 hfp_enhanced_call_status_t status = active_call->enhanced_status; 1609 hfp_enhanced_call_mode_t mode = active_call->mode; 1610 hfp_enhanced_call_mpty_t mpty = active_call->mpty; 1611 uint8_t type = active_call->clip_type; 1612 char * number = active_call->clip_number; 1613 1614 char buffer[100]; 1615 // TODO: check length of a buffer, to fit the MTU 1616 int offset = snprintf(buffer, sizeof(buffer), "\r\n%s: %d,%d,%d,%d,%d", HFP_LIST_CURRENT_CALLS, idx, dir, status, mode, mpty); 1617 if (number){ 1618 offset += snprintf(buffer+offset, sizeof(buffer)-offset-3, ", \"%s\",%u", number, type); 1619 } 1620 snprintf(buffer+offset, sizeof(buffer)-offset, "\r\n"); 1621 log_info("hfp_ag_send_current_call_status 000 index %d, dir %d, status %d, mode %d, mpty %d, type %d, number %s", idx, dir, status, 1622 mode, mpty, type, number); 1623 send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer); 1624 } 1625 1626 1627 // sends pending command, returns if command was sent 1628 static int hfp_ag_send_commands(hfp_connection_t *hfp_connection){ 1629 1630 if (hfp_connection->send_status_of_current_calls){ 1631 hfp_connection->ok_pending = 0; 1632 if (hfp_connection->next_call_index < hfp_gsm_get_number_of_calls()){ 1633 hfp_connection->next_call_index++; 1634 hfp_ag_send_call_status(hfp_connection, hfp_connection->next_call_index); 1635 return 1; 1636 } else { 1637 // TODO: this code should be removed. check a) before setting send_status_of_current_calls, or b) right before hfp_ag_send_call_status above 1638 hfp_connection->next_call_index = 0; 1639 hfp_connection->ok_pending = 1; 1640 hfp_connection->send_status_of_current_calls = 0; 1641 } 1642 } 1643 1644 if (hfp_connection->ag_notify_incoming_call_waiting){ 1645 hfp_connection->ag_notify_incoming_call_waiting = 0; 1646 hfp_ag_send_call_waiting_notification(hfp_connection->rfcomm_cid); 1647 return 1; 1648 } 1649 1650 if (hfp_connection->command == HFP_CMD_UNKNOWN){ 1651 hfp_connection->ok_pending = 0; 1652 hfp_connection->send_error = 0; 1653 hfp_connection->command = HFP_CMD_NONE; 1654 hfp_ag_send_error(hfp_connection->rfcomm_cid); 1655 return 1; 1656 } 1657 1658 if (hfp_connection->send_error){ 1659 hfp_connection->send_error = 0; 1660 hfp_connection->command = HFP_CMD_NONE; 1661 hfp_ag_send_error(hfp_connection->rfcomm_cid); 1662 return 1; 1663 } 1664 1665 // note: before update AG indicators and ok_pending 1666 if (hfp_connection->send_response_and_hold_status){ 1667 int status = hfp_connection->send_response_and_hold_status - 1; 1668 hfp_connection->send_response_and_hold_status = 0; 1669 hfp_ag_send_set_response_and_hold(hfp_connection->rfcomm_cid, status); 1670 return 1; 1671 } 1672 1673 if (hfp_connection->ok_pending){ 1674 hfp_connection->ok_pending = 0; 1675 hfp_connection->command = HFP_CMD_NONE; 1676 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 1677 return 1; 1678 } 1679 1680 // update AG indicators 1681 if (hfp_connection->ag_indicators_status_update_bitmap){ 1682 int i; 1683 for (i=0;i<hfp_connection->ag_indicators_nr;i++){ 1684 if (get_bit(hfp_connection->ag_indicators_status_update_bitmap, i)){ 1685 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, i, 0); 1686 if (!hfp_connection->enable_status_update_for_ag_indicators) { 1687 log_info("+CMER:3,0,0,0 - not sending update for '%s'", hfp_ag_indicators[i].name); 1688 break; 1689 } 1690 hfp_ag_send_transfer_ag_indicators_status_cmd(hfp_connection->rfcomm_cid, &hfp_ag_indicators[i]); 1691 return 1; 1692 } 1693 } 1694 } 1695 1696 if (hfp_connection->ag_ring){ 1697 hfp_connection->ag_ring = 0; 1698 hfp_connection->command = HFP_CMD_NONE; 1699 hfp_ag_send_ring(hfp_connection->rfcomm_cid); 1700 return 1; 1701 } 1702 1703 if (hfp_connection->ag_send_clip){ 1704 hfp_connection->ag_send_clip = 0; 1705 hfp_connection->command = HFP_CMD_NONE; 1706 hfp_ag_send_clip(hfp_connection->rfcomm_cid); 1707 return 1; 1708 } 1709 1710 if (hfp_connection->send_phone_number_for_voice_tag){ 1711 hfp_connection->send_phone_number_for_voice_tag = 0; 1712 hfp_connection->command = HFP_CMD_NONE; 1713 hfp_connection->ok_pending = 1; 1714 hfp_ag_send_phone_number_for_voice_tag_cmd(hfp_connection->rfcomm_cid); 1715 return 1; 1716 } 1717 1718 if (hfp_connection->send_subscriber_number){ 1719 if (hfp_connection->next_subscriber_number_to_send < subscriber_numbers_count){ 1720 hfp_phone_number_t phone = subscriber_numbers[hfp_connection->next_subscriber_number_to_send++]; 1721 hfp_send_subscriber_number_cmd(hfp_connection->rfcomm_cid, phone.type, phone.number); 1722 } else { 1723 hfp_connection->send_subscriber_number = 0; 1724 hfp_connection->next_subscriber_number_to_send = 0; 1725 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 1726 } 1727 hfp_connection->command = HFP_CMD_NONE; 1728 return 1; 1729 } 1730 1731 if (hfp_connection->send_microphone_gain){ 1732 hfp_connection->send_microphone_gain = 0; 1733 hfp_connection->command = HFP_CMD_NONE; 1734 hfp_ag_send_set_microphone_gain_cmd(hfp_connection->rfcomm_cid, hfp_connection->microphone_gain); 1735 return 1; 1736 } 1737 1738 if (hfp_connection->send_speaker_gain){ 1739 hfp_connection->send_speaker_gain = 0; 1740 hfp_connection->command = HFP_CMD_NONE; 1741 hfp_ag_send_set_speaker_gain_cmd(hfp_connection->rfcomm_cid, hfp_connection->speaker_gain); 1742 return 1; 1743 } 1744 1745 if (hfp_connection->send_ag_status_indicators){ 1746 hfp_connection->send_ag_status_indicators = 0; 1747 hfp_ag_send_retrieve_indicators_status_cmd(hfp_connection->rfcomm_cid); 1748 return 1; 1749 } 1750 1751 return 0; 1752 } 1753 1754 static void hfp_ag_run_for_context(hfp_connection_t *hfp_connection){ 1755 1756 if (!hfp_connection) return; 1757 1758 if (!hfp_connection->rfcomm_cid) return; 1759 1760 if (hfp_connection->local_role != HFP_ROLE_AG) { 1761 log_info("HFP AG%p, wrong role %u", hfp_connection, hfp_connection->local_role); 1762 return; 1763 } 1764 1765 if (!rfcomm_can_send_packet_now(hfp_connection->rfcomm_cid)) { 1766 log_info("hfp_ag_run_for_context: request can send for 0x%02x", hfp_connection->rfcomm_cid); 1767 rfcomm_request_can_send_now_event(hfp_connection->rfcomm_cid); 1768 return; 1769 } 1770 1771 int cmd_sent = hfp_ag_send_commands(hfp_connection); 1772 1773 // trigger codec exchange if requested by app 1774 if (hfp_connection->trigger_codec_exchange){ 1775 log_info("trigger codec, command %u, codec state %u", hfp_connection->command, hfp_connection->codecs_state); 1776 } 1777 1778 if (hfp_connection->trigger_codec_exchange && hfp_connection->command == HFP_CMD_NONE){ 1779 switch (hfp_connection->codecs_state){ 1780 case HFP_CODECS_IDLE: 1781 case HFP_CODECS_RECEIVED_LIST: 1782 case HFP_CODECS_AG_RESEND_COMMON_CODEC: 1783 case HFP_CODECS_ERROR: 1784 hfp_connection->trigger_codec_exchange = 0; 1785 hfp_connection->command = HFP_CMD_AG_SEND_COMMON_CODEC; 1786 break; 1787 default: 1788 break; 1789 } 1790 } 1791 1792 if (!cmd_sent){ 1793 cmd_sent = hfp_ag_run_for_context_service_level_connection(hfp_connection); 1794 } 1795 1796 if (!cmd_sent){ 1797 cmd_sent = hfp_ag_run_for_context_service_level_connection_queries(hfp_connection); 1798 } 1799 1800 if (!cmd_sent){ 1801 cmd_sent = call_setup_state_machine(hfp_connection); 1802 } 1803 1804 if (!cmd_sent){ 1805 cmd_sent = hfp_ag_run_for_audio_connection(hfp_connection); 1806 } 1807 1808 if (hfp_connection->command == HFP_CMD_NONE && !cmd_sent){ 1809 // log_info("hfp_connection->command == HFP_CMD_NONE"); 1810 switch(hfp_connection->state){ 1811 case HFP_W2_DISCONNECT_RFCOMM: 1812 hfp_connection->state = HFP_W4_RFCOMM_DISCONNECTED; 1813 rfcomm_disconnect(hfp_connection->rfcomm_cid); 1814 break; 1815 default: 1816 break; 1817 } 1818 } 1819 1820 if (cmd_sent){ 1821 hfp_connection->command = HFP_CMD_NONE; 1822 rfcomm_request_can_send_now_event(hfp_connection->rfcomm_cid); 1823 } 1824 } 1825 1826 static hfp_generic_status_indicator_t *get_hf_indicator_by_number(int number){ 1827 int i; 1828 for (i=0;i< hfp_generic_status_indicators_nr;i++){ 1829 hfp_generic_status_indicator_t * indicator = &hfp_generic_status_indicators[i]; 1830 if (indicator->uuid == number){ 1831 return indicator; 1832 } 1833 } 1834 return NULL; 1835 } 1836 1837 static int hfp_parser_is_end_of_line(uint8_t byte){ 1838 return byte == '\n' || byte == '\r'; 1839 } 1840 1841 static void hfp_ag_handle_rfcomm_data(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 1842 UNUSED(packet_type); // ok: only called with RFCOMM_DATA_PACKET 1843 1844 // assertion: size >= 1 as rfcomm.c does not deliver empty packets 1845 if (size < 1) return; 1846 1847 hfp_connection_t * hfp_connection = get_hfp_connection_context_for_rfcomm_cid(channel); 1848 if (!hfp_connection) return; 1849 1850 hfp_log_rfcomm_message("HFP_AG_RX", packet, size); 1851 1852 // process messages byte-wise 1853 int pos; 1854 for (pos = 0; pos < size ; pos++){ 1855 hfp_parse(hfp_connection, packet[pos], 0); 1856 1857 // parse until end of line 1858 if (!hfp_parser_is_end_of_line(packet[pos])) continue; 1859 1860 int value; 1861 hfp_generic_status_indicator_t * indicator; 1862 switch(hfp_connection->command){ 1863 case HFP_CMD_RESPONSE_AND_HOLD_QUERY: 1864 if (hfp_ag_response_and_hold_active){ 1865 hfp_connection->send_response_and_hold_status = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD + 1; 1866 } 1867 hfp_connection->ok_pending = 1; 1868 break; 1869 case HFP_CMD_RESPONSE_AND_HOLD_COMMAND: 1870 value = btstack_atoi((char *)&hfp_connection->line_buffer[0]); 1871 log_info("HF Response and Hold: %u", value); 1872 switch(value){ 1873 case HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD: 1874 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF, hfp_connection); 1875 break; 1876 case HFP_RESPONSE_AND_HOLD_HELD_INCOMING_ACCEPTED: 1877 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF, hfp_connection); 1878 break; 1879 case HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED: 1880 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF, hfp_connection); 1881 break; 1882 default: 1883 break; 1884 } 1885 hfp_connection->ok_pending = 1; 1886 break; 1887 case HFP_CMD_HF_INDICATOR_STATUS: 1888 hfp_connection->command = HFP_CMD_NONE; 1889 // find indicator by assigned number 1890 indicator = get_hf_indicator_by_number(hfp_connection->parser_indicator_index); 1891 if (!indicator){ 1892 hfp_connection->send_error = 1; 1893 break; 1894 } 1895 value = btstack_atoi((char *)&hfp_connection->line_buffer[0]); 1896 switch (indicator->uuid){ 1897 case 1: // enhanced security 1898 if (value > 1) { 1899 hfp_connection->send_error = 1; 1900 return; 1901 } 1902 log_info("HF Indicator 'enhanced security' set to %u", value); 1903 break; 1904 case 2: // battery level 1905 if (value > 100){ 1906 hfp_connection->send_error = 1; 1907 return; 1908 } 1909 log_info("HF Indicator 'battery' set to %u", value); 1910 break; 1911 default: 1912 log_info("HF Indicator unknown set to %u", value); 1913 break; 1914 } 1915 hfp_connection->ok_pending = 1; 1916 break; 1917 case HFP_CMD_RETRIEVE_AG_INDICATORS_STATUS: 1918 // expected by SLC state machine 1919 if (hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) break; 1920 hfp_connection->send_ag_indicators_segment = 0; 1921 hfp_connection->send_ag_status_indicators = 1; 1922 break; 1923 case HFP_CMD_LIST_CURRENT_CALLS: 1924 hfp_connection->command = HFP_CMD_NONE; 1925 hfp_connection->next_call_index = 0; 1926 hfp_connection->send_status_of_current_calls = 1; 1927 break; 1928 case HFP_CMD_GET_SUBSCRIBER_NUMBER_INFORMATION: 1929 if (subscriber_numbers_count == 0){ 1930 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 1931 break; 1932 } 1933 hfp_connection->next_subscriber_number_to_send = 0; 1934 hfp_connection->send_subscriber_number = 1; 1935 break; 1936 case HFP_CMD_TRANSMIT_DTMF_CODES: 1937 hfp_connection->command = HFP_CMD_NONE; 1938 hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_TRANSMIT_DTMF_CODES, (const char *) &hfp_connection->line_buffer[0]); 1939 break; 1940 case HFP_CMD_HF_REQUEST_PHONE_NUMBER: 1941 hfp_connection->command = HFP_CMD_NONE; 1942 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_ATTACH_NUMBER_TO_VOICE_TAG); 1943 break; 1944 case HFP_CMD_TURN_OFF_EC_AND_NR: 1945 hfp_connection->command = HFP_CMD_NONE; 1946 if (get_bit(hfp_supported_features, HFP_AGSF_EC_NR_FUNCTION)){ 1947 hfp_connection->ok_pending = 1; 1948 hfp_supported_features = store_bit(hfp_supported_features, HFP_AGSF_EC_NR_FUNCTION, hfp_connection->ag_echo_and_noise_reduction); 1949 log_info("AG: EC/NR = %u", hfp_connection->ag_echo_and_noise_reduction); 1950 } else { 1951 hfp_connection->send_error = 1; 1952 } 1953 break; 1954 case HFP_CMD_CALL_ANSWERED: 1955 hfp_connection->command = HFP_CMD_NONE; 1956 log_info("HFP: ATA"); 1957 hfp_ag_call_sm(HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF, hfp_connection); 1958 break; 1959 case HFP_CMD_HANG_UP_CALL: 1960 hfp_connection->command = HFP_CMD_NONE; 1961 hfp_connection->ok_pending = 1; 1962 hfp_ag_call_sm(HFP_AG_TERMINATE_CALL_BY_HF, hfp_connection); 1963 break; 1964 case HFP_CMD_CALL_HOLD: { 1965 // TODO: fully implement this 1966 log_error("HFP: unhandled call hold type %c", hfp_connection->line_buffer[0]); 1967 hfp_connection->command = HFP_CMD_NONE; 1968 hfp_connection->ok_pending = 1; 1969 hfp_connection->call_index = 0; 1970 1971 if (hfp_connection->line_buffer[1] != '\0'){ 1972 hfp_connection->call_index = btstack_atoi((char *)&hfp_connection->line_buffer[1]); 1973 } 1974 1975 switch (hfp_connection->line_buffer[0]){ 1976 case '0': 1977 // Releases all held calls or sets User Determined User Busy (UDUB) for a waiting call. 1978 hfp_ag_call_sm(HFP_AG_CALL_HOLD_USER_BUSY, hfp_connection); 1979 break; 1980 case '1': 1981 // Releases all active calls (if any exist) and accepts the other (held or waiting) call. 1982 // Where both a held and a waiting call exist, the above procedures shall apply to the 1983 // waiting call (i.e., not to the held call) in conflicting situation. 1984 hfp_ag_call_sm(HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection); 1985 break; 1986 case '2': 1987 // Places all active calls (if any exist) on hold and accepts the other (held or waiting) call. 1988 // Where both a held and a waiting call exist, the above procedures shall apply to the 1989 // waiting call (i.e., not to the held call) in conflicting situation. 1990 hfp_ag_call_sm(HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection); 1991 break; 1992 case '3': 1993 // Adds a held call to the conversation. 1994 hfp_ag_call_sm(HFP_AG_CALL_HOLD_ADD_HELD_CALL, hfp_connection); 1995 break; 1996 case '4': 1997 // Connects the two calls and disconnects the subscriber from both calls (Explicit Call Transfer). 1998 hfp_ag_call_sm(HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS, hfp_connection); 1999 break; 2000 default: 2001 break; 2002 } 2003 break; 2004 } 2005 case HFP_CMD_CALL_PHONE_NUMBER: 2006 hfp_connection->command = HFP_CMD_NONE; 2007 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_INITIATED, hfp_connection); 2008 break; 2009 case HFP_CMD_REDIAL_LAST_NUMBER: 2010 hfp_connection->command = HFP_CMD_NONE; 2011 hfp_ag_call_sm(HFP_AG_OUTGOING_REDIAL_INITIATED, hfp_connection); 2012 break; 2013 case HFP_CMD_ENABLE_CLIP: 2014 hfp_connection->command = HFP_CMD_NONE; 2015 hfp_connection->clip_enabled = hfp_connection->line_buffer[8] != '0'; 2016 log_info("hfp: clip set, now: %u", hfp_connection->clip_enabled); 2017 hfp_connection->ok_pending = 1; 2018 break; 2019 case HFP_CMD_ENABLE_CALL_WAITING_NOTIFICATION: 2020 hfp_connection->command = HFP_CMD_NONE; 2021 hfp_connection->call_waiting_notification_enabled = hfp_connection->line_buffer[8] != '0'; 2022 log_info("hfp: call waiting notification set, now: %u", hfp_connection->call_waiting_notification_enabled); 2023 hfp_connection->ok_pending = 1; 2024 break; 2025 case HFP_CMD_SET_SPEAKER_GAIN: 2026 hfp_connection->command = HFP_CMD_NONE; 2027 hfp_connection->ok_pending = 1; 2028 log_info("HF speaker gain = %u", hfp_connection->speaker_gain); 2029 break; 2030 case HFP_CMD_SET_MICROPHONE_GAIN: 2031 hfp_connection->command = HFP_CMD_NONE; 2032 hfp_connection->ok_pending = 1; 2033 log_info("HF microphone gain = %u", hfp_connection->microphone_gain); 2034 break; 2035 default: 2036 break; 2037 } 2038 } 2039 } 2040 2041 static void hfp_run(void){ 2042 btstack_linked_list_iterator_t it; 2043 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 2044 while (btstack_linked_list_iterator_has_next(&it)){ 2045 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 2046 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 2047 hfp_ag_run_for_context(hfp_connection); 2048 } 2049 } 2050 2051 static void rfcomm_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 2052 switch (packet_type){ 2053 case RFCOMM_DATA_PACKET: 2054 hfp_ag_handle_rfcomm_data(packet_type, channel, packet, size); 2055 break; 2056 case HCI_EVENT_PACKET: 2057 if (packet[0] == RFCOMM_EVENT_CAN_SEND_NOW){ 2058 uint16_t rfcomm_cid = rfcomm_event_can_send_now_get_rfcomm_cid(packet); 2059 hfp_ag_run_for_context(get_hfp_connection_context_for_rfcomm_cid(rfcomm_cid)); 2060 return; 2061 } 2062 hfp_handle_rfcomm_event(packet_type, channel, packet, size, HFP_ROLE_AG); 2063 break; 2064 default: 2065 break; 2066 } 2067 2068 hfp_run(); 2069 } 2070 2071 static void hci_event_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 2072 hfp_handle_hci_event(packet_type, channel, packet, size, HFP_ROLE_AG); 2073 2074 // allow for sco established -> ring transition 2075 if (packet_type != HCI_EVENT_PACKET) return; 2076 if (hci_event_packet_get_type(packet) != HCI_EVENT_SYNCHRONOUS_CONNECTION_COMPLETE) return; 2077 hfp_run(); 2078 } 2079 2080 void hfp_ag_init_codecs(int codecs_nr, uint8_t * codecs){ 2081 if (codecs_nr > HFP_MAX_NUM_CODECS){ 2082 log_error("hfp_init: codecs_nr (%d) > HFP_MAX_NUM_CODECS (%d)", codecs_nr, HFP_MAX_NUM_CODECS); 2083 return; 2084 } 2085 int i; 2086 hfp_codecs_nr = codecs_nr; 2087 for (i=0; i < codecs_nr; i++){ 2088 hfp_codecs[i] = codecs[i]; 2089 } 2090 } 2091 2092 void hfp_ag_init_supported_features(uint32_t supported_features){ 2093 hfp_supported_features = supported_features; 2094 } 2095 2096 void hfp_ag_init_ag_indicators(int ag_indicators_nr, hfp_ag_indicator_t * ag_indicators){ 2097 hfp_ag_indicators_nr = ag_indicators_nr; 2098 memcpy(hfp_ag_indicators, ag_indicators, ag_indicators_nr * sizeof(hfp_ag_indicator_t)); 2099 } 2100 2101 void hfp_ag_init_hf_indicators(int hf_indicators_nr, hfp_generic_status_indicator_t * hf_indicators){ 2102 if (hf_indicators_nr > HFP_MAX_NUM_HF_INDICATORS) return; 2103 hfp_generic_status_indicators_nr = hf_indicators_nr; 2104 memcpy(hfp_generic_status_indicators, hf_indicators, hf_indicators_nr * sizeof(hfp_generic_status_indicator_t)); 2105 } 2106 2107 void hfp_ag_init_call_hold_services(int call_hold_services_nr, const char * call_hold_services[]){ 2108 hfp_ag_call_hold_services_nr = call_hold_services_nr; 2109 memcpy(hfp_ag_call_hold_services, call_hold_services, call_hold_services_nr * sizeof(char *)); 2110 } 2111 2112 2113 void hfp_ag_init(uint16_t rfcomm_channel_nr){ 2114 2115 hfp_init(); 2116 2117 hci_event_callback_registration.callback = &hci_event_packet_handler; 2118 hci_add_event_handler(&hci_event_callback_registration); 2119 2120 rfcomm_register_service(&rfcomm_packet_handler, rfcomm_channel_nr, 0xffff); 2121 2122 // used to set packet handler for outgoing rfcomm connections - could be handled by emitting an event to us 2123 hfp_set_ag_rfcomm_packet_handler(&rfcomm_packet_handler); 2124 2125 hfp_ag_response_and_hold_active = 0; 2126 subscriber_numbers = NULL; 2127 subscriber_numbers_count = 0; 2128 2129 hfp_gsm_init(); 2130 } 2131 2132 void hfp_ag_establish_service_level_connection(bd_addr_t bd_addr){ 2133 hfp_establish_service_level_connection(bd_addr, BLUETOOTH_SERVICE_CLASS_HANDSFREE, HFP_ROLE_AG); 2134 } 2135 2136 void hfp_ag_release_service_level_connection(hci_con_handle_t acl_handle){ 2137 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2138 if (!hfp_connection){ 2139 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2140 return; 2141 } 2142 hfp_release_service_level_connection(hfp_connection); 2143 hfp_ag_run_for_context(hfp_connection); 2144 } 2145 2146 void hfp_ag_report_extended_audio_gateway_error_result_code(hci_con_handle_t acl_handle, hfp_cme_error_t error){ 2147 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2148 if (!hfp_connection){ 2149 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2150 return; 2151 } 2152 hfp_connection->extended_audio_gateway_error = 0; 2153 if (!hfp_connection->enable_extended_audio_gateway_error_report){ 2154 return; 2155 } 2156 hfp_connection->extended_audio_gateway_error = error; 2157 hfp_ag_run_for_context(hfp_connection); 2158 } 2159 2160 static void hfp_ag_setup_audio_connection(hfp_connection_t * hfp_connection){ 2161 log_info("hfp_ag_setup_audio_connection state %u", hfp_connection->state); 2162 if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED) return; 2163 if (hfp_connection->state >= HFP_W2_DISCONNECT_SCO) return; 2164 2165 hfp_connection->establish_audio_connection = 1; 2166 if (!has_codec_negotiation_feature(hfp_connection)){ 2167 log_info("hfp_ag_establish_audio_connection - no codec negotiation feature, using CVSD"); 2168 hfp_connection->negotiated_codec = HFP_CODEC_CVSD; 2169 hfp_connection->codecs_state = HFP_CODECS_EXCHANGED; 2170 // now, pick link settings 2171 hfp_init_link_settings(hfp_connection, hfp_ag_esco_s4_supported(hfp_connection)); 2172 return; 2173 } 2174 2175 hfp_connection->trigger_codec_exchange = 1; 2176 } 2177 2178 void hfp_ag_establish_audio_connection(hci_con_handle_t acl_handle){ 2179 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2180 if (!hfp_connection){ 2181 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2182 return; 2183 } 2184 hfp_connection->trigger_codec_exchange = 0; 2185 hfp_connection->establish_audio_connection = 0; 2186 hfp_ag_setup_audio_connection(hfp_connection); 2187 hfp_ag_run_for_context(hfp_connection); 2188 } 2189 2190 void hfp_ag_release_audio_connection(hci_con_handle_t acl_handle){ 2191 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2192 if (!hfp_connection){ 2193 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2194 return; 2195 } 2196 hfp_release_audio_connection(hfp_connection); 2197 hfp_ag_run_for_context(hfp_connection); 2198 } 2199 2200 /** 2201 * @brief Enable in-band ring tone 2202 */ 2203 void hfp_ag_set_use_in_band_ring_tone(int use_in_band_ring_tone){ 2204 if (get_bit(hfp_supported_features, HFP_AGSF_IN_BAND_RING_TONE) == use_in_band_ring_tone){ 2205 return; 2206 } 2207 hfp_supported_features = store_bit(hfp_supported_features, HFP_AGSF_IN_BAND_RING_TONE, use_in_band_ring_tone); 2208 2209 btstack_linked_list_iterator_t it; 2210 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 2211 while (btstack_linked_list_iterator_has_next(&it)){ 2212 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 2213 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 2214 hfp_connection->command = HFP_CMD_CHANGE_IN_BAND_RING_TONE_SETTING; 2215 hfp_ag_run_for_context(hfp_connection); 2216 } 2217 } 2218 2219 /** 2220 * @brief Called from GSM 2221 */ 2222 void hfp_ag_incoming_call(void){ 2223 hfp_ag_call_sm(HFP_AG_INCOMING_CALL, NULL); 2224 } 2225 2226 /** 2227 * @brief number is stored. 2228 */ 2229 void hfp_ag_set_clip(uint8_t type, const char * number){ 2230 hfp_gsm_handle_event_with_clip(HFP_AG_SET_CLIP, type, number); 2231 } 2232 2233 void hfp_ag_call_dropped(void){ 2234 hfp_ag_call_sm(HFP_AG_CALL_DROPPED, NULL); 2235 } 2236 2237 // call from AG UI 2238 void hfp_ag_answer_incoming_call(void){ 2239 hfp_ag_call_sm(HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG, NULL); 2240 } 2241 2242 void hfp_ag_join_held_call(void){ 2243 hfp_ag_call_sm(HFP_AG_HELD_CALL_JOINED_BY_AG, NULL); 2244 } 2245 2246 void hfp_ag_terminate_call(void){ 2247 hfp_ag_call_sm(HFP_AG_TERMINATE_CALL_BY_AG, NULL); 2248 } 2249 2250 void hfp_ag_outgoing_call_ringing(void){ 2251 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_RINGING, NULL); 2252 } 2253 2254 void hfp_ag_outgoing_call_established(void){ 2255 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_ESTABLISHED, NULL); 2256 } 2257 2258 void hfp_ag_outgoing_call_rejected(void){ 2259 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_REJECTED, NULL); 2260 } 2261 2262 void hfp_ag_outgoing_call_accepted(void){ 2263 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_ACCEPTED, NULL); 2264 } 2265 2266 void hfp_ag_hold_incoming_call(void){ 2267 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG, NULL); 2268 } 2269 2270 void hfp_ag_accept_held_incoming_call(void) { 2271 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG, NULL); 2272 } 2273 2274 void hfp_ag_reject_held_incoming_call(void){ 2275 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG, NULL); 2276 } 2277 2278 static void hfp_ag_set_ag_indicator(const char * name, int value){ 2279 int indicator_index = get_ag_indicator_index_for_name(name); 2280 if (indicator_index < 0) return; 2281 hfp_ag_indicators[indicator_index].status = value; 2282 2283 2284 btstack_linked_list_iterator_t it; 2285 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 2286 while (btstack_linked_list_iterator_has_next(&it)){ 2287 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 2288 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 2289 if (! hfp_connection->ag_indicators[indicator_index].enabled) { 2290 log_info("AG indicator '%s' changed to %u but not enabled", hfp_ag_indicators[indicator_index].name, value); 2291 continue; 2292 } 2293 log_info("AG indicator '%s' changed to %u, request transfer statur", hfp_ag_indicators[indicator_index].name, value); 2294 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 2295 hfp_ag_run_for_context(hfp_connection); 2296 } 2297 } 2298 2299 void hfp_ag_set_registration_status(int status){ 2300 hfp_ag_set_ag_indicator("service", status); 2301 } 2302 2303 void hfp_ag_set_signal_strength(int strength){ 2304 hfp_ag_set_ag_indicator("signal", strength); 2305 } 2306 2307 void hfp_ag_set_roaming_status(int status){ 2308 hfp_ag_set_ag_indicator("roam", status); 2309 } 2310 2311 void hfp_ag_set_battery_level(int level){ 2312 hfp_ag_set_ag_indicator("battchg", level); 2313 } 2314 2315 void hfp_ag_activate_voice_recognition(hci_con_handle_t acl_handle, int activate){ 2316 if (!get_bit(hfp_supported_features, HFP_AGSF_VOICE_RECOGNITION_FUNCTION)) return; 2317 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2318 if (!hfp_connection){ 2319 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2320 return; 2321 } 2322 2323 if (!get_bit(hfp_connection->remote_supported_features, HFP_HFSF_VOICE_RECOGNITION_FUNCTION)) { 2324 log_info("AG cannot acivate voice recognition - not supported by HF"); 2325 return; 2326 } 2327 2328 if (activate){ 2329 hfp_ag_establish_audio_connection(acl_handle); 2330 } 2331 2332 hfp_connection->ag_activate_voice_recognition = activate; 2333 hfp_connection->command = HFP_CMD_AG_ACTIVATE_VOICE_RECOGNITION; 2334 hfp_ag_run_for_context(hfp_connection); 2335 } 2336 2337 void hfp_ag_set_microphone_gain(hci_con_handle_t acl_handle, int gain){ 2338 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2339 if (!hfp_connection){ 2340 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2341 return; 2342 } 2343 if (hfp_connection->microphone_gain != gain){ 2344 hfp_connection->command = HFP_CMD_SET_MICROPHONE_GAIN; 2345 hfp_connection->microphone_gain = gain; 2346 hfp_connection->send_microphone_gain = 1; 2347 } 2348 hfp_ag_run_for_context(hfp_connection); 2349 } 2350 2351 void hfp_ag_set_speaker_gain(hci_con_handle_t acl_handle, int gain){ 2352 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2353 if (!hfp_connection){ 2354 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2355 return; 2356 } 2357 if (hfp_connection->speaker_gain != gain){ 2358 hfp_connection->speaker_gain = gain; 2359 hfp_connection->send_speaker_gain = 1; 2360 } 2361 hfp_ag_run_for_context(hfp_connection); 2362 } 2363 2364 void hfp_ag_send_phone_number_for_voice_tag(hci_con_handle_t acl_handle, const char * number){ 2365 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2366 if (!hfp_connection){ 2367 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2368 return; 2369 } 2370 hfp_ag_set_clip(0, number); 2371 hfp_connection->send_phone_number_for_voice_tag = 1; 2372 } 2373 2374 void hfp_ag_reject_phone_number_for_voice_tag(hci_con_handle_t acl_handle){ 2375 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2376 if (!hfp_connection){ 2377 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2378 return; 2379 } 2380 hfp_connection->send_error = 1; 2381 } 2382 2383 void hfp_ag_send_dtmf_code_done(hci_con_handle_t acl_handle){ 2384 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2385 if (!hfp_connection){ 2386 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2387 return; 2388 } 2389 hfp_connection->ok_pending = 1; 2390 } 2391 2392 void hfp_ag_set_subcriber_number_information(hfp_phone_number_t * numbers, int numbers_count){ 2393 subscriber_numbers = numbers; 2394 subscriber_numbers_count = numbers_count; 2395 } 2396 2397 void hfp_ag_clear_last_dialed_number(void){ 2398 hfp_gsm_clear_last_dialed_number(); 2399 } 2400 2401 void hfp_ag_notify_incoming_call_waiting(hci_con_handle_t acl_handle){ 2402 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2403 if (!hfp_connection){ 2404 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2405 return; 2406 } 2407 if (!hfp_connection->call_waiting_notification_enabled) return; 2408 2409 hfp_connection->ag_notify_incoming_call_waiting = 1; 2410 hfp_ag_run_for_context(hfp_connection); 2411 } 2412 2413