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 (void)memcpy(hfp_connection->ag_indicators, hfp_ag_indicators, 118 hfp_ag_indicators_nr * sizeof(hfp_ag_indicator_t)); 119 } 120 return hfp_connection->ag_indicators_nr; 121 } 122 123 hfp_ag_indicator_t * hfp_ag_get_ag_indicators(hfp_connection_t * hfp_connection){ 124 // TODO: save only value, and value changed in the hfp_connection? 125 if (hfp_connection->ag_indicators_nr != hfp_ag_indicators_nr){ 126 hfp_connection->ag_indicators_nr = hfp_ag_indicators_nr; 127 (void)memcpy(hfp_connection->ag_indicators, hfp_ag_indicators, 128 hfp_ag_indicators_nr * sizeof(hfp_ag_indicator_t)); 129 } 130 return (hfp_ag_indicator_t *)&(hfp_connection->ag_indicators); 131 } 132 133 static hfp_ag_indicator_t * get_ag_indicator_for_name(const char * name){ 134 int i; 135 for (i = 0; i < hfp_ag_indicators_nr; i++){ 136 if (strcmp(hfp_ag_indicators[i].name, name) == 0){ 137 return &hfp_ag_indicators[i]; 138 } 139 } 140 return NULL; 141 } 142 143 static int get_ag_indicator_index_for_name(const char * name){ 144 int i; 145 for (i = 0; i < hfp_ag_indicators_nr; i++){ 146 if (strcmp(hfp_ag_indicators[i].name, name) == 0){ 147 return i; 148 } 149 } 150 return -1; 151 } 152 153 static hfp_connection_t * get_hfp_ag_connection_context_for_acl_handle(uint16_t handle){ 154 btstack_linked_list_iterator_t it; 155 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 156 while (btstack_linked_list_iterator_has_next(&it)){ 157 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 158 if (hfp_connection->acl_handle != handle) continue; 159 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 160 return hfp_connection; 161 } 162 return NULL; 163 } 164 165 void hfp_ag_register_packet_handler(btstack_packet_handler_t callback){ 166 if (callback == NULL){ 167 log_error("hfp_ag_register_packet_handler called with NULL callback"); 168 return; 169 } 170 hfp_ag_callback = callback; 171 hfp_set_ag_callback(callback); 172 } 173 174 static int use_in_band_tone(void){ 175 return get_bit(hfp_supported_features, HFP_AGSF_IN_BAND_RING_TONE); 176 } 177 178 static int has_codec_negotiation_feature(hfp_connection_t * hfp_connection){ 179 int hf = get_bit(hfp_connection->remote_supported_features, HFP_HFSF_CODEC_NEGOTIATION); 180 int ag = get_bit(hfp_supported_features, HFP_AGSF_CODEC_NEGOTIATION); 181 return hf && ag; 182 } 183 184 static int has_call_waiting_and_3way_calling_feature(hfp_connection_t * hfp_connection){ 185 int hf = get_bit(hfp_connection->remote_supported_features, HFP_HFSF_THREE_WAY_CALLING); 186 int ag = get_bit(hfp_supported_features, HFP_AGSF_THREE_WAY_CALLING); 187 return hf && ag; 188 } 189 190 static int has_hf_indicators_feature(hfp_connection_t * hfp_connection){ 191 int hf = get_bit(hfp_connection->remote_supported_features, HFP_HFSF_HF_INDICATORS); 192 int ag = get_bit(hfp_supported_features, HFP_AGSF_HF_INDICATORS); 193 return hf && ag; 194 } 195 196 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){ 197 if (!name){ 198 name = default_hfp_ag_service_name; 199 } 200 hfp_create_sdp_record(service, service_record_handle, BLUETOOTH_SERVICE_CLASS_HANDSFREE_AUDIO_GATEWAY, rfcomm_channel_nr, name); 201 202 /* 203 * 0x01 – Ability to reject a call 204 * 0x00 – No ability to reject a call 205 */ 206 de_add_number(service, DE_UINT, DE_SIZE_16, 0x0301); // Hands-Free Profile - Network 207 de_add_number(service, DE_UINT, DE_SIZE_8, ability_to_reject_call); 208 209 // Construct SupportedFeatures for SDP bitmap: 210 // 211 // "The values of the “SupportedFeatures” bitmap given in Table 5.4 shall be the same as the values 212 // of the Bits 0 to 4 of the unsolicited result code +BRSF" 213 // 214 // Wide band speech (bit 5) requires Codec negotiation 215 // 216 uint16_t sdp_features = supported_features & 0x1f; 217 if (wide_band_speech && (supported_features & (1 << HFP_AGSF_CODEC_NEGOTIATION))){ 218 sdp_features |= 1 << 5; 219 } 220 de_add_number(service, DE_UINT, DE_SIZE_16, 0x0311); // Hands-Free Profile - SupportedFeatures 221 de_add_number(service, DE_UINT, DE_SIZE_16, sdp_features); 222 } 223 224 static int hfp_ag_send_change_in_band_ring_tone_setting_cmd(uint16_t cid){ 225 char buffer[20]; 226 sprintf(buffer, "\r\n%s:%d\r\n", HFP_CHANGE_IN_BAND_RING_TONE_SETTING, use_in_band_tone()); 227 return send_str_over_rfcomm(cid, buffer); 228 } 229 230 static int hfp_ag_exchange_supported_features_cmd(uint16_t cid){ 231 char buffer[40]; 232 sprintf(buffer, "\r\n%s:%d\r\n\r\nOK\r\n", HFP_SUPPORTED_FEATURES, hfp_supported_features); 233 return send_str_over_rfcomm(cid, buffer); 234 } 235 236 static int hfp_ag_send_ok(uint16_t cid){ 237 char buffer[10]; 238 sprintf(buffer, "\r\nOK\r\n"); 239 return send_str_over_rfcomm(cid, buffer); 240 } 241 242 static int hfp_ag_send_ring(uint16_t cid){ 243 return send_str_over_rfcomm(cid, (char *) "\r\nRING\r\n"); 244 } 245 246 static int hfp_ag_send_clip(uint16_t cid){ 247 char buffer[50]; 248 sprintf(buffer, "\r\n%s: \"%s\",%u\r\n", HFP_ENABLE_CLIP, hfp_gsm_clip_number(), hfp_gsm_clip_type()); 249 return send_str_over_rfcomm(cid, buffer); 250 } 251 252 static int hfp_send_subscriber_number_cmd(uint16_t cid, uint8_t type, const char * number){ 253 char buffer[50]; 254 sprintf(buffer, "\r\n%s: ,\"%s\",%u, , \r\n", HFP_SUBSCRIBER_NUMBER_INFORMATION, number, type); 255 return send_str_over_rfcomm(cid, buffer); 256 } 257 258 static int hfp_ag_send_phone_number_for_voice_tag_cmd(uint16_t cid){ 259 char buffer[50]; 260 sprintf(buffer, "\r\n%s: %s\r\n", HFP_PHONE_NUMBER_FOR_VOICE_TAG, hfp_gsm_clip_number()); 261 return send_str_over_rfcomm(cid, buffer); 262 } 263 264 static int hfp_ag_send_call_waiting_notification(uint16_t cid){ 265 char buffer[50]; 266 sprintf(buffer, "\r\n%s: \"%s\",%u\r\n", HFP_ENABLE_CALL_WAITING_NOTIFICATION, hfp_gsm_clip_number(), hfp_gsm_clip_type()); 267 return send_str_over_rfcomm(cid, buffer); 268 } 269 270 static int hfp_ag_send_error(uint16_t cid){ 271 char buffer[10]; 272 sprintf(buffer, "\r\nERROR\r\n"); 273 return send_str_over_rfcomm(cid, buffer); 274 } 275 276 static int hfp_ag_send_report_extended_audio_gateway_error(uint16_t cid, uint8_t error){ 277 char buffer[20]; 278 sprintf(buffer, "\r\n%s=%d\r\n", HFP_EXTENDED_AUDIO_GATEWAY_ERROR, error); 279 return send_str_over_rfcomm(cid, buffer); 280 } 281 282 // get size for indicator string 283 static int hfp_ag_indicators_string_size(hfp_connection_t * hfp_connection, int i){ 284 // template: ("$NAME",($MIN,$MAX)) 285 return 8 + (int) strlen(hfp_ag_get_ag_indicators(hfp_connection)[i].name) 286 + string_len_for_uint32(hfp_ag_get_ag_indicators(hfp_connection)[i].min_range) 287 + string_len_for_uint32(hfp_ag_get_ag_indicators(hfp_connection)[i].min_range); 288 } 289 290 // store indicator 291 static void hfp_ag_indicators_string_store(hfp_connection_t * hfp_connection, int i, uint8_t * buffer){ 292 sprintf((char *) buffer, "(\"%s\",(%d,%d)),", 293 hfp_ag_get_ag_indicators(hfp_connection)[i].name, 294 hfp_ag_get_ag_indicators(hfp_connection)[i].min_range, 295 hfp_ag_get_ag_indicators(hfp_connection)[i].max_range); 296 } 297 298 // structure: header [indicator [comma indicator]] footer 299 static int hfp_ag_indicators_cmd_generator_num_segments(hfp_connection_t * hfp_connection){ 300 int num_indicators = hfp_ag_get_ag_indicators_nr(hfp_connection); 301 if (!num_indicators) return 2; 302 return 3 + ((num_indicators-1) * 2); 303 } 304 305 // get size of individual segment for hfp_ag_retrieve_indicators_cmd 306 static int hfp_ag_indicators_cmd_generator_get_segment_len(hfp_connection_t * hfp_connection, int index){ 307 if (index == 0) { 308 return strlen(HFP_INDICATOR) + 3; // "\n\r%s:"" 309 } 310 index--; 311 int num_indicators = hfp_ag_get_ag_indicators_nr(hfp_connection); 312 int indicator_index = index >> 1; 313 if ((index & 1) == 0){ 314 return hfp_ag_indicators_string_size(hfp_connection, indicator_index); 315 } 316 if (indicator_index == (num_indicators - 1)){ 317 return 8; // "\r\n\r\nOK\r\n" 318 } 319 return 1; // comma 320 } 321 322 static void hgp_ag_indicators_cmd_generator_store_segment(hfp_connection_t * hfp_connection, int index, uint8_t * buffer){ 323 if (index == 0){ 324 *buffer++ = '\r'; 325 *buffer++ = '\n'; 326 int len = strlen(HFP_INDICATOR); 327 (void)memcpy(buffer, HFP_INDICATOR, len); 328 buffer += len; 329 *buffer++ = ':'; 330 return; 331 } 332 index--; 333 int num_indicators = hfp_ag_get_ag_indicators_nr(hfp_connection); 334 int indicator_index = index >> 1; 335 if ((index & 1) == 0){ 336 hfp_ag_indicators_string_store(hfp_connection, indicator_index, buffer); 337 return; 338 } 339 if (indicator_index == (num_indicators-1)){ 340 (void)memcpy(buffer, "\r\n\r\nOK\r\n", 8); 341 return; 342 } 343 *buffer = ','; 344 } 345 346 static int hfp_hf_indicators_join(char * buffer, int buffer_size){ 347 if (buffer_size < (hfp_ag_indicators_nr * 3)) return 0; 348 int i; 349 int offset = 0; 350 for (i = 0; i < (hfp_generic_status_indicators_nr-1); i++) { 351 offset += snprintf(buffer+offset, buffer_size-offset, "%d,", hfp_generic_status_indicators[i].uuid); 352 } 353 if (i < hfp_generic_status_indicators_nr){ 354 offset += snprintf(buffer+offset, buffer_size-offset, "%d,", hfp_generic_status_indicators[i].uuid); 355 } 356 return offset; 357 } 358 359 static int hfp_hf_indicators_initial_status_join(char * buffer, int buffer_size){ 360 if (buffer_size < (hfp_generic_status_indicators_nr * 3)) return 0; 361 int i; 362 int offset = 0; 363 for (i = 0; i < hfp_generic_status_indicators_nr; i++) { 364 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); 365 } 366 return offset; 367 } 368 369 static int hfp_ag_indicators_status_join(char * buffer, int buffer_size){ 370 if (buffer_size < (hfp_ag_indicators_nr * 3)) return 0; 371 int i; 372 int offset = 0; 373 for (i = 0; i < (hfp_ag_indicators_nr-1); i++) { 374 offset += snprintf(buffer+offset, buffer_size-offset, "%d,", hfp_ag_indicators[i].status); 375 } 376 if (i<hfp_ag_indicators_nr){ 377 offset += snprintf(buffer+offset, buffer_size-offset, "%d", hfp_ag_indicators[i].status); 378 } 379 return offset; 380 } 381 382 static int hfp_ag_call_services_join(char * buffer, int buffer_size){ 383 if (buffer_size < (hfp_ag_call_hold_services_nr * 3)) return 0; 384 int i; 385 int offset = snprintf(buffer, buffer_size, "("); 386 for (i = 0; i < (hfp_ag_call_hold_services_nr-1); i++) { 387 offset += snprintf(buffer+offset, buffer_size-offset, "%s,", hfp_ag_call_hold_services[i]); 388 } 389 if (i<hfp_ag_call_hold_services_nr){ 390 offset += snprintf(buffer+offset, buffer_size-offset, "%s)", hfp_ag_call_hold_services[i]); 391 } 392 return offset; 393 } 394 395 static int hfp_ag_send_cmd_via_generator(uint16_t cid, hfp_connection_t * hfp_connection, 396 int start_segment, int num_segments, 397 int (*get_segment_len)(hfp_connection_t * hfp_connection, int segment), 398 void (*store_segment) (hfp_connection_t * hfp_connection, int segment, uint8_t * buffer)){ 399 400 // assumes: can send now == true 401 // assumes: num segments > 0 402 // assumes: individual segments are smaller than MTU 403 rfcomm_reserve_packet_buffer(); 404 int mtu = rfcomm_get_max_frame_size(cid); 405 uint8_t * data = rfcomm_get_outgoing_buffer(); 406 int offset = 0; 407 int segment = start_segment; 408 while (segment < num_segments){ 409 int segment_len = get_segment_len(hfp_connection, segment); 410 if ((offset + segment_len) > mtu) break; 411 // append segement 412 store_segment(hfp_connection, segment, data+offset); 413 offset += segment_len; 414 segment++; 415 } 416 rfcomm_send_prepared(cid, offset); 417 return segment; 418 } 419 420 // returns next segment to store 421 static int hfp_ag_send_retrieve_indicators_cmd_via_generator(uint16_t cid, hfp_connection_t * hfp_connection, int start_segment){ 422 int num_segments = hfp_ag_indicators_cmd_generator_num_segments(hfp_connection); 423 return hfp_ag_send_cmd_via_generator(cid, hfp_connection, start_segment, num_segments, 424 hfp_ag_indicators_cmd_generator_get_segment_len, hgp_ag_indicators_cmd_generator_store_segment); 425 } 426 427 static int hfp_ag_send_retrieve_indicators_status_cmd(uint16_t cid){ 428 char buffer[40]; 429 const int size = sizeof(buffer); 430 int offset = snprintf(buffer, size, "\r\n%s:", HFP_INDICATOR); 431 offset += hfp_ag_indicators_status_join(buffer+offset, size-offset-9); 432 offset += snprintf(buffer+offset, size-offset, "\r\n\r\nOK\r\n"); 433 return send_str_over_rfcomm(cid, buffer); 434 } 435 436 static int hfp_ag_send_retrieve_can_hold_call_cmd(uint16_t cid){ 437 char buffer[40]; 438 const int size = sizeof(buffer); 439 int offset = snprintf(buffer, size, "\r\n%s:", HFP_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES); 440 offset += hfp_ag_call_services_join(buffer+offset, size-offset-9); 441 offset += snprintf(buffer+offset, size-offset, "\r\n\r\nOK\r\n"); 442 return send_str_over_rfcomm(cid, buffer); 443 } 444 445 446 static int hfp_ag_send_list_supported_generic_status_indicators_cmd(uint16_t cid){ 447 return hfp_ag_send_ok(cid); 448 } 449 450 static int hfp_ag_send_retrieve_supported_generic_status_indicators_cmd(uint16_t cid){ 451 char buffer[40]; 452 const int size = sizeof(buffer); 453 int offset = snprintf(buffer, size, "\r\n%s:(", HFP_GENERIC_STATUS_INDICATOR); 454 offset += hfp_hf_indicators_join(buffer+offset, size-offset-10); 455 offset += snprintf(buffer+offset, size-offset, ")\r\n\r\nOK\r\n"); 456 return send_str_over_rfcomm(cid, buffer); 457 } 458 459 static int hfp_ag_send_retrieve_initital_supported_generic_status_indicators_cmd(uint16_t cid){ 460 char buffer[40]; 461 int offset = hfp_hf_indicators_initial_status_join(buffer, sizeof(buffer) - 7); 462 snprintf(buffer+offset, sizeof(buffer)-offset, "\r\nOK\r\n"); 463 return send_str_over_rfcomm(cid, buffer); 464 } 465 466 static int hfp_ag_send_transfer_ag_indicators_status_cmd(uint16_t cid, hfp_ag_indicator_t * indicator){ 467 char buffer[20]; 468 sprintf(buffer, "\r\n%s:%d,%d\r\n", HFP_TRANSFER_AG_INDICATOR_STATUS, indicator->index, indicator->status); 469 return send_str_over_rfcomm(cid, buffer); 470 } 471 472 static int hfp_ag_send_report_network_operator_name_cmd(uint16_t cid, hfp_network_opearator_t op){ 473 char buffer[41]; 474 if (strlen(op.name) == 0){ 475 snprintf(buffer, sizeof(buffer), "\r\n%s:%d,,\r\n\r\nOK\r\n", HFP_QUERY_OPERATOR_SELECTION, op.mode); 476 } else { 477 int offset = snprintf(buffer, sizeof(buffer), "\r\n%s:%d,%d,", HFP_QUERY_OPERATOR_SELECTION, op.mode, op.format); 478 offset += snprintf(buffer+offset, 16, "%s", op.name); 479 snprintf(buffer+offset, sizeof(buffer)-offset, "\r\n\r\nOK\r\n"); 480 } 481 return send_str_over_rfcomm(cid, buffer); 482 } 483 484 static inline int hfp_ag_send_cmd_with_int(uint16_t cid, const char * cmd, uint8_t value){ 485 char buffer[30]; 486 snprintf(buffer, sizeof(buffer), "\r\n%s:%d\r\n", cmd, value); 487 return send_str_over_rfcomm(cid, buffer); 488 } 489 490 static int hfp_ag_send_suggest_codec_cmd(uint16_t cid, uint8_t codec){ 491 return hfp_ag_send_cmd_with_int(cid, HFP_CONFIRM_COMMON_CODEC, codec); 492 } 493 494 static int hfp_ag_send_activate_voice_recognition_cmd(uint16_t cid, uint8_t activate_voice_recognition){ 495 return hfp_ag_send_cmd_with_int(cid, HFP_ACTIVATE_VOICE_RECOGNITION, activate_voice_recognition); 496 } 497 498 static int hfp_ag_send_set_speaker_gain_cmd(uint16_t cid, uint8_t gain){ 499 return hfp_ag_send_cmd_with_int(cid, HFP_SET_SPEAKER_GAIN, gain); 500 } 501 502 static int hfp_ag_send_set_microphone_gain_cmd(uint16_t cid, uint8_t gain){ 503 return hfp_ag_send_cmd_with_int(cid, HFP_SET_MICROPHONE_GAIN, gain); 504 } 505 506 static int hfp_ag_send_set_response_and_hold(uint16_t cid, int state){ 507 return hfp_ag_send_cmd_with_int(cid, HFP_RESPONSE_AND_HOLD, state); 508 } 509 510 static uint8_t hfp_ag_suggest_codec(hfp_connection_t *hfp_connection){ 511 if (hfp_connection->sco_for_msbc_failed) return HFP_CODEC_CVSD; 512 513 if (hfp_supports_codec(HFP_CODEC_MSBC, hfp_codecs_nr, hfp_codecs)){ 514 if (hfp_supports_codec(HFP_CODEC_MSBC, hfp_connection->remote_codecs_nr, hfp_connection->remote_codecs)){ 515 return HFP_CODEC_MSBC; 516 } 517 } 518 return HFP_CODEC_CVSD; 519 } 520 521 static uint8_t hfp_ag_esco_s4_supported(hfp_connection_t * hfp_connection){ 522 return (hfp_connection->remote_supported_features & (1<<HFP_HFSF_ESCO_S4)) && (hfp_supported_features & (1<<HFP_AGSF_ESCO_S4)); 523 } 524 525 static int codecs_exchange_state_machine(hfp_connection_t * hfp_connection){ 526 /* events ( == commands): 527 HFP_CMD_AVAILABLE_CODECS == received AT+BAC with list of codecs 528 HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP: 529 hf_trigger_codec_connection_setup == received BCC 530 ag_trigger_codec_connection_setup == received from AG to send BCS 531 HFP_CMD_HF_CONFIRMED_CODEC == received AT+BCS 532 */ 533 534 switch (hfp_connection->codecs_state){ 535 case HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE: 536 hfp_connection->command = HFP_CMD_AG_SEND_COMMON_CODEC; 537 break; 538 case HFP_CODECS_AG_RESEND_COMMON_CODEC: 539 hfp_connection->command = HFP_CMD_AG_SEND_COMMON_CODEC; 540 break; 541 default: 542 break; 543 } 544 545 // printf(" -> State machine: CC\n"); 546 547 switch (hfp_connection->command){ 548 case HFP_CMD_AVAILABLE_CODECS: 549 if (hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED){ 550 hfp_connection->codecs_state = HFP_CODECS_RECEIVED_LIST; 551 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 552 return 1; 553 } 554 555 switch (hfp_connection->codecs_state){ 556 case HFP_CODECS_AG_SENT_COMMON_CODEC: 557 case HFP_CODECS_EXCHANGED: 558 hfp_connection->codecs_state = HFP_CODECS_AG_RESEND_COMMON_CODEC; 559 break; 560 default: 561 break; 562 } 563 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 564 return 1; 565 566 case HFP_CMD_TRIGGER_CODEC_CONNECTION_SETUP: 567 hfp_connection->codecs_state = HFP_CODECS_RECEIVED_TRIGGER_CODEC_EXCHANGE; 568 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 569 return 1; 570 571 case HFP_CMD_AG_SEND_COMMON_CODEC: 572 hfp_connection->codecs_state = HFP_CODECS_AG_SENT_COMMON_CODEC; 573 hfp_connection->suggested_codec = hfp_ag_suggest_codec(hfp_connection); 574 hfp_ag_send_suggest_codec_cmd(hfp_connection->rfcomm_cid, hfp_connection->suggested_codec); 575 return 1; 576 577 case HFP_CMD_HF_CONFIRMED_CODEC: 578 if (hfp_connection->codec_confirmed != hfp_connection->suggested_codec){ 579 hfp_connection->codecs_state = HFP_CODECS_ERROR; 580 hfp_ag_send_error(hfp_connection->rfcomm_cid); 581 return 1; 582 } 583 hfp_connection->negotiated_codec = hfp_connection->codec_confirmed; 584 hfp_connection->codecs_state = HFP_CODECS_EXCHANGED; 585 log_info("hfp: codec confirmed: %s", (hfp_connection->negotiated_codec == HFP_CODEC_MSBC) ? "mSBC" : "CVSD"); 586 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 587 // now, pick link settings 588 589 hfp_init_link_settings(hfp_connection, hfp_ag_esco_s4_supported(hfp_connection)); 590 return 1; 591 default: 592 break; 593 } 594 return 0; 595 } 596 597 static void hfp_ag_slc_established(hfp_connection_t * hfp_connection){ 598 hfp_connection->state = HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED; 599 hfp_emit_slc_connection_event(hfp_connection, 0, hfp_connection->acl_handle, hfp_connection->remote_addr); 600 601 // if active call exist, set per-hfp_connection state active, too (when audio is on) 602 if (hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT){ 603 hfp_connection->call_state = HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE; 604 } 605 // if AG is ringing, also start ringing on the HF 606 if ((hfp_gsm_call_status() == HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS) && 607 (hfp_gsm_callsetup_status() == HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS)){ 608 hfp_ag_hf_start_ringing(hfp_connection); 609 } 610 } 611 612 static int hfp_ag_run_for_context_service_level_connection(hfp_connection_t * hfp_connection){ 613 // log_info("hfp_ag_run_for_context_service_level_connection state %u, command %u", hfp_connection->state, hfp_connection->command); 614 if (hfp_connection->state >= HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) return 0; 615 int sent = 0; 616 switch(hfp_connection->command){ 617 case HFP_CMD_SUPPORTED_FEATURES: 618 switch(hfp_connection->state){ 619 case HFP_W4_EXCHANGE_SUPPORTED_FEATURES: 620 case HFP_EXCHANGE_SUPPORTED_FEATURES: 621 hfp_hf_drop_mSBC_if_eSCO_not_supported(hfp_codecs, &hfp_codecs_nr); 622 if (has_codec_negotiation_feature(hfp_connection)){ 623 hfp_connection->state = HFP_W4_NOTIFY_ON_CODECS; 624 } else { 625 hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS; 626 } 627 hfp_ag_exchange_supported_features_cmd(hfp_connection->rfcomm_cid); 628 return 1; 629 default: 630 break; 631 } 632 break; 633 case HFP_CMD_AVAILABLE_CODECS: 634 sent = codecs_exchange_state_machine(hfp_connection); 635 if (hfp_connection->codecs_state == HFP_CODECS_RECEIVED_LIST){ 636 hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS; 637 } 638 return sent; 639 640 case HFP_CMD_RETRIEVE_AG_INDICATORS: 641 if (hfp_connection->state == HFP_W4_RETRIEVE_INDICATORS) { 642 // HF requested AG Indicators and we did expect it 643 hfp_connection->state = HFP_RETRIEVE_INDICATORS; 644 // continue below in state switch 645 } 646 break; 647 648 case HFP_CMD_RETRIEVE_AG_INDICATORS_STATUS: 649 if (hfp_connection->state != HFP_W4_RETRIEVE_INDICATORS_STATUS) break; 650 hfp_connection->state = HFP_W4_ENABLE_INDICATORS_STATUS_UPDATE; 651 hfp_ag_send_retrieve_indicators_status_cmd(hfp_connection->rfcomm_cid); 652 return 1; 653 654 case HFP_CMD_ENABLE_INDICATOR_STATUS_UPDATE: 655 if (hfp_connection->state != HFP_W4_ENABLE_INDICATORS_STATUS_UPDATE) break; 656 if (has_call_waiting_and_3way_calling_feature(hfp_connection)){ 657 hfp_connection->state = HFP_W4_RETRIEVE_CAN_HOLD_CALL; 658 } else if (has_hf_indicators_feature(hfp_connection)){ 659 hfp_connection->state = HFP_W4_LIST_GENERIC_STATUS_INDICATORS; 660 } else { 661 hfp_ag_slc_established(hfp_connection); 662 } 663 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 664 return 1; 665 666 case HFP_CMD_SUPPORT_CALL_HOLD_AND_MULTIPARTY_SERVICES: 667 if (hfp_connection->state != HFP_W4_RETRIEVE_CAN_HOLD_CALL) break; 668 if (has_hf_indicators_feature(hfp_connection)){ 669 hfp_connection->state = HFP_W4_LIST_GENERIC_STATUS_INDICATORS; 670 } 671 hfp_ag_send_retrieve_can_hold_call_cmd(hfp_connection->rfcomm_cid); 672 if (!has_hf_indicators_feature(hfp_connection)){ 673 hfp_ag_slc_established(hfp_connection); 674 } 675 return 1; 676 677 case HFP_CMD_LIST_GENERIC_STATUS_INDICATORS: 678 if (hfp_connection->state != HFP_W4_LIST_GENERIC_STATUS_INDICATORS) break; 679 hfp_connection->state = HFP_W4_RETRIEVE_GENERIC_STATUS_INDICATORS; 680 hfp_ag_send_list_supported_generic_status_indicators_cmd(hfp_connection->rfcomm_cid); 681 return 1; 682 683 case HFP_CMD_RETRIEVE_GENERIC_STATUS_INDICATORS: 684 if (hfp_connection->state != HFP_W4_RETRIEVE_GENERIC_STATUS_INDICATORS) break; 685 hfp_connection->state = HFP_W4_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS; 686 hfp_ag_send_retrieve_supported_generic_status_indicators_cmd(hfp_connection->rfcomm_cid); 687 return 1; 688 689 case HFP_CMD_RETRIEVE_GENERIC_STATUS_INDICATORS_STATE: 690 if (hfp_connection->state != HFP_W4_RETRIEVE_INITITAL_STATE_GENERIC_STATUS_INDICATORS) break; 691 hfp_ag_slc_established(hfp_connection); 692 hfp_ag_send_retrieve_initital_supported_generic_status_indicators_cmd(hfp_connection->rfcomm_cid); 693 return 1; 694 default: 695 break; 696 } 697 698 switch (hfp_connection->state){ 699 case HFP_RETRIEVE_INDICATORS: { 700 int next_segment = hfp_ag_send_retrieve_indicators_cmd_via_generator(hfp_connection->rfcomm_cid, hfp_connection, hfp_connection->send_ag_indicators_segment); 701 int num_segments = hfp_ag_indicators_cmd_generator_num_segments(hfp_connection); 702 log_info("HFP_CMD_RETRIEVE_AG_INDICATORS next segment %u, num_segments %u", next_segment, num_segments); 703 if (next_segment < num_segments){ 704 // prepare sending of next segment 705 hfp_connection->send_ag_indicators_segment = next_segment; 706 log_info("HFP_CMD_RETRIEVE_AG_INDICATORS more. command %u, next seg %u", hfp_connection->command, next_segment); 707 } else { 708 // done, go to next state 709 hfp_connection->send_ag_indicators_segment = 0; 710 hfp_connection->state = HFP_W4_RETRIEVE_INDICATORS_STATUS; 711 } 712 return 1; 713 } 714 default: 715 break; 716 } 717 return 0; 718 } 719 720 static int hfp_ag_run_for_context_service_level_connection_queries(hfp_connection_t * hfp_connection){ 721 int sent = codecs_exchange_state_machine(hfp_connection); 722 if (sent) return 1; 723 724 switch(hfp_connection->command){ 725 case HFP_CMD_AG_ACTIVATE_VOICE_RECOGNITION: 726 hfp_supported_features = store_bit(hfp_supported_features, HFP_AGSF_VOICE_RECOGNITION_FUNCTION, hfp_connection->ag_activate_voice_recognition); 727 hfp_ag_send_activate_voice_recognition_cmd(hfp_connection->rfcomm_cid, hfp_connection->ag_activate_voice_recognition); 728 return 1; 729 case HFP_CMD_HF_ACTIVATE_VOICE_RECOGNITION: 730 if (get_bit(hfp_supported_features, HFP_AGSF_VOICE_RECOGNITION_FUNCTION)){ 731 hfp_supported_features = store_bit(hfp_supported_features, HFP_AGSF_VOICE_RECOGNITION_FUNCTION, hfp_connection->ag_activate_voice_recognition); 732 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 733 hfp_ag_setup_audio_connection(hfp_connection); 734 } else { 735 hfp_ag_send_error(hfp_connection->rfcomm_cid); 736 } 737 return 1; 738 case HFP_CMD_CHANGE_IN_BAND_RING_TONE_SETTING: 739 hfp_ag_send_change_in_band_ring_tone_setting_cmd(hfp_connection->rfcomm_cid); 740 return 1; 741 case HFP_CMD_QUERY_OPERATOR_SELECTION_NAME: 742 hfp_ag_send_report_network_operator_name_cmd(hfp_connection->rfcomm_cid, hfp_connection->network_operator); 743 return 1; 744 case HFP_CMD_QUERY_OPERATOR_SELECTION_NAME_FORMAT: 745 if (hfp_connection->network_operator.format != 0){ 746 hfp_ag_send_error(hfp_connection->rfcomm_cid); 747 } else { 748 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 749 } 750 return 1; 751 case HFP_CMD_ENABLE_INDIVIDUAL_AG_INDICATOR_STATUS_UPDATE: 752 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 753 return 1; 754 case HFP_CMD_ENABLE_EXTENDED_AUDIO_GATEWAY_ERROR: 755 if (hfp_connection->extended_audio_gateway_error){ 756 hfp_connection->extended_audio_gateway_error = 0; 757 hfp_ag_send_report_extended_audio_gateway_error(hfp_connection->rfcomm_cid, hfp_connection->extended_audio_gateway_error_value); 758 return 1; 759 } 760 break; 761 case HFP_CMD_ENABLE_INDICATOR_STATUS_UPDATE: 762 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 763 return 1; 764 default: 765 break; 766 } 767 return 0; 768 } 769 770 static int hfp_ag_run_for_audio_connection(hfp_connection_t * hfp_connection){ 771 if ((hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) || 772 (hfp_connection->state > HFP_W2_DISCONNECT_SCO)) return 0; 773 774 775 if ((hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED) && hfp_connection->release_audio_connection){ 776 hfp_connection->state = HFP_W4_SCO_DISCONNECTED; 777 hfp_connection->release_audio_connection = 0; 778 gap_disconnect(hfp_connection->sco_handle); 779 return 1; 780 } 781 782 if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED) return 0; 783 784 // run codecs exchange 785 int sent = codecs_exchange_state_machine(hfp_connection); 786 if (sent) return 1; 787 788 if (hfp_connection->codecs_state != HFP_CODECS_EXCHANGED) return 0; 789 if (hfp_connection->establish_audio_connection){ 790 hfp_connection->state = HFP_W4_SCO_CONNECTED; 791 hfp_connection->establish_audio_connection = 0; 792 hfp_setup_synchronous_connection(hfp_connection); 793 return 1; 794 } 795 return 0; 796 } 797 798 static hfp_connection_t * hfp_ag_context_for_timer(btstack_timer_source_t * ts){ 799 btstack_linked_list_iterator_t it; 800 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 801 802 while (btstack_linked_list_iterator_has_next(&it)){ 803 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 804 if ( & hfp_connection->hfp_timeout == ts) { 805 return hfp_connection; 806 } 807 } 808 return NULL; 809 } 810 811 static void hfp_timeout_handler(btstack_timer_source_t * timer){ 812 hfp_connection_t * hfp_connection = hfp_ag_context_for_timer(timer); 813 if (!hfp_connection) return; 814 815 log_info("HFP start ring timeout, con handle 0x%02x", hfp_connection->acl_handle); 816 hfp_connection->ag_ring = 1; 817 hfp_connection->ag_send_clip = hfp_gsm_clip_type() && hfp_connection->clip_enabled; 818 819 btstack_run_loop_set_timer(& hfp_connection->hfp_timeout, 2000); // 2 seconds timeout 820 btstack_run_loop_add_timer(& hfp_connection->hfp_timeout); 821 822 hfp_ag_run_for_context(hfp_connection); 823 } 824 825 static void hfp_timeout_start(hfp_connection_t * hfp_connection){ 826 btstack_run_loop_remove_timer(& hfp_connection->hfp_timeout); 827 btstack_run_loop_set_timer_handler(& hfp_connection->hfp_timeout, hfp_timeout_handler); 828 btstack_run_loop_set_timer(& hfp_connection->hfp_timeout, 2000); // 2 seconds timeout 829 btstack_run_loop_add_timer(& hfp_connection->hfp_timeout); 830 } 831 832 static void hfp_timeout_stop(hfp_connection_t * hfp_connection){ 833 log_info("HFP stop ring timeout, con handle 0x%02x", hfp_connection->acl_handle); 834 btstack_run_loop_remove_timer(& hfp_connection->hfp_timeout); 835 } 836 837 // 838 // transitition implementations for hfp_ag_call_state_machine 839 // 840 841 static void hfp_ag_hf_start_ringing(hfp_connection_t * hfp_connection){ 842 if (use_in_band_tone()){ 843 hfp_connection->call_state = HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING; 844 hfp_ag_establish_audio_connection(hfp_connection->acl_handle); 845 } else { 846 hfp_timeout_start(hfp_connection); 847 hfp_connection->ag_ring = 1; 848 hfp_connection->ag_send_clip = hfp_gsm_clip_type() && hfp_connection->clip_enabled; 849 hfp_connection->call_state = HFP_CALL_RINGING; 850 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_START_RINGINIG); 851 } 852 } 853 854 static void hfp_ag_hf_stop_ringing(hfp_connection_t * hfp_connection){ 855 hfp_connection->ag_ring = 0; 856 hfp_connection->ag_send_clip = 0; 857 hfp_timeout_stop(hfp_connection); 858 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_STOP_RINGINIG); 859 } 860 861 static void hfp_ag_trigger_incoming_call(void){ 862 int indicator_index = get_ag_indicator_index_for_name("callsetup"); 863 if (indicator_index < 0) return; 864 865 btstack_linked_list_iterator_t it; 866 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 867 while (btstack_linked_list_iterator_has_next(&it)){ 868 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 869 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 870 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 871 if (hfp_connection->call_state == HFP_CALL_IDLE){ 872 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 873 hfp_ag_hf_start_ringing(hfp_connection); 874 } 875 if (hfp_connection->call_state == HFP_CALL_ACTIVE){ 876 hfp_connection->call_state = HFP_CALL_W2_SEND_CALL_WAITING; 877 } 878 hfp_ag_run_for_context(hfp_connection); 879 } 880 } 881 882 static void hfp_ag_transfer_callsetup_state(void){ 883 int indicator_index = get_ag_indicator_index_for_name("callsetup"); 884 if (indicator_index < 0) return; 885 886 btstack_linked_list_iterator_t it; 887 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 888 while (btstack_linked_list_iterator_has_next(&it)){ 889 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 890 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 891 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 892 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 893 hfp_ag_run_for_context(hfp_connection); 894 } 895 } 896 897 static void hfp_ag_transfer_call_state(void){ 898 int indicator_index = get_ag_indicator_index_for_name("call"); 899 if (indicator_index < 0) return; 900 901 btstack_linked_list_iterator_t it; 902 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 903 while (btstack_linked_list_iterator_has_next(&it)){ 904 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 905 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 906 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 907 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 908 hfp_ag_run_for_context(hfp_connection); 909 } 910 } 911 912 static void hfp_ag_transfer_callheld_state(void){ 913 int indicator_index = get_ag_indicator_index_for_name("callheld"); 914 if (indicator_index < 0) return; 915 916 btstack_linked_list_iterator_t it; 917 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 918 while (btstack_linked_list_iterator_has_next(&it)){ 919 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 920 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 921 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 922 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 923 hfp_ag_run_for_context(hfp_connection); 924 } 925 } 926 927 static void hfp_ag_hf_accept_call(hfp_connection_t * source){ 928 929 int call_indicator_index = get_ag_indicator_index_for_name("call"); 930 int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup"); 931 932 btstack_linked_list_iterator_t it; 933 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 934 while (btstack_linked_list_iterator_has_next(&it)){ 935 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 936 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 937 if ((hfp_connection->call_state != HFP_CALL_RINGING) && 938 (hfp_connection->call_state != HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING)) continue; 939 940 hfp_ag_hf_stop_ringing(hfp_connection); 941 if (hfp_connection == source){ 942 943 if (use_in_band_tone()){ 944 hfp_connection->call_state = HFP_CALL_ACTIVE; 945 } else { 946 hfp_connection->call_state = HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE; 947 hfp_ag_establish_audio_connection(hfp_connection->acl_handle); 948 } 949 950 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 951 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 952 953 } else { 954 hfp_connection->call_state = HFP_CALL_IDLE; 955 } 956 hfp_ag_run_for_context(hfp_connection); 957 } 958 } 959 960 static void hfp_ag_ag_accept_call(void){ 961 962 int call_indicator_index = get_ag_indicator_index_for_name("call"); 963 int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup"); 964 965 btstack_linked_list_iterator_t it; 966 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 967 while (btstack_linked_list_iterator_has_next(&it)){ 968 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 969 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 970 if (hfp_connection->call_state != HFP_CALL_RINGING) continue; 971 972 hfp_ag_hf_stop_ringing(hfp_connection); 973 hfp_connection->call_state = HFP_CALL_TRIGGER_AUDIO_CONNECTION; 974 975 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 976 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 977 978 hfp_ag_run_for_context(hfp_connection); 979 break; // only single 980 } 981 } 982 983 static void hfp_ag_trigger_reject_call(void){ 984 int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup"); 985 btstack_linked_list_iterator_t it; 986 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 987 while (btstack_linked_list_iterator_has_next(&it)){ 988 hfp_connection_t * connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 989 if (connection->local_role != HFP_ROLE_AG) continue; 990 if ((connection->call_state != HFP_CALL_RINGING) && 991 (connection->call_state != HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING)) continue; 992 hfp_ag_hf_stop_ringing(connection); 993 connection->ag_indicators_status_update_bitmap = store_bit(connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 994 connection->call_state = HFP_CALL_IDLE; 995 hfp_ag_run_for_context(connection); 996 } 997 } 998 999 static void hfp_ag_emit_simple_event(uint8_t event_subtype){ 1000 uint8_t event[3]; 1001 event[0] = HCI_EVENT_HFP_META; 1002 event[1] = sizeof(event) - 2; 1003 event[2] = event_subtype; 1004 if (!hfp_ag_callback) return; 1005 (*hfp_ag_callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 1006 } 1007 1008 static void hfp_ag_trigger_terminate_call(void){ 1009 int call_indicator_index = get_ag_indicator_index_for_name("call"); 1010 1011 btstack_linked_list_iterator_t it; 1012 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1013 while (btstack_linked_list_iterator_has_next(&it)){ 1014 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1015 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1016 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 1017 if (hfp_connection->call_state == HFP_CALL_IDLE) continue; 1018 hfp_connection->call_state = HFP_CALL_IDLE; 1019 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 1020 if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED){ 1021 hfp_connection->release_audio_connection = 1; 1022 } 1023 hfp_ag_run_for_context(hfp_connection); 1024 } 1025 hfp_ag_emit_simple_event(HFP_SUBEVENT_CALL_TERMINATED); 1026 } 1027 1028 static void hfp_ag_set_callsetup_indicator(void){ 1029 hfp_ag_indicator_t * indicator = get_ag_indicator_for_name("callsetup"); 1030 if (!indicator){ 1031 log_error("hfp_ag_set_callsetup_indicator: callsetup indicator is missing"); 1032 return; 1033 }; 1034 indicator->status = hfp_gsm_callsetup_status(); 1035 } 1036 1037 static void hfp_ag_set_callheld_indicator(void){ 1038 hfp_ag_indicator_t * indicator = get_ag_indicator_for_name("callheld"); 1039 if (!indicator){ 1040 log_error("hfp_ag_set_callheld_state: callheld indicator is missing"); 1041 return; 1042 }; 1043 indicator->status = hfp_gsm_callheld_status(); 1044 } 1045 1046 static void hfp_ag_set_call_indicator(void){ 1047 hfp_ag_indicator_t * indicator = get_ag_indicator_for_name("call"); 1048 if (!indicator){ 1049 log_error("hfp_ag_set_call_state: call indicator is missing"); 1050 return; 1051 }; 1052 indicator->status = hfp_gsm_call_status(); 1053 } 1054 1055 static void hfp_ag_stop_ringing(void){ 1056 btstack_linked_list_iterator_t it; 1057 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1058 while (btstack_linked_list_iterator_has_next(&it)){ 1059 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1060 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1061 if ((hfp_connection->call_state != HFP_CALL_RINGING) && 1062 (hfp_connection->call_state != HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING)) continue; 1063 hfp_ag_hf_stop_ringing(hfp_connection); 1064 } 1065 } 1066 1067 static hfp_connection_t * hfp_ag_connection_for_call_state(hfp_call_state_t call_state){ 1068 btstack_linked_list_iterator_t it; 1069 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1070 while (btstack_linked_list_iterator_has_next(&it)){ 1071 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1072 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1073 if (hfp_connection->call_state == call_state) return hfp_connection; 1074 } 1075 return NULL; 1076 } 1077 1078 static void hfp_ag_send_response_and_hold_state(hfp_response_and_hold_state_t state){ 1079 btstack_linked_list_iterator_t it; 1080 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1081 while (btstack_linked_list_iterator_has_next(&it)){ 1082 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1083 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1084 hfp_connection->send_response_and_hold_status = state + 1; 1085 } 1086 } 1087 1088 static int call_setup_state_machine(hfp_connection_t * hfp_connection){ 1089 int indicator_index; 1090 switch (hfp_connection->call_state){ 1091 case HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING: 1092 if (hfp_connection->state != HFP_AUDIO_CONNECTION_ESTABLISHED) return 0; 1093 // we got event: audio hfp_connection established 1094 hfp_timeout_start(hfp_connection); 1095 hfp_connection->ag_ring = 1; 1096 hfp_connection->ag_send_clip = hfp_gsm_clip_type() && hfp_connection->clip_enabled; 1097 hfp_connection->call_state = HFP_CALL_RINGING; 1098 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_START_RINGINIG); 1099 break; 1100 case HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE: 1101 if (hfp_connection->state != HFP_AUDIO_CONNECTION_ESTABLISHED) return 0; 1102 // we got event: audio hfp_connection established 1103 hfp_connection->call_state = HFP_CALL_ACTIVE; 1104 break; 1105 case HFP_CALL_W2_SEND_CALL_WAITING: 1106 hfp_connection->call_state = HFP_CALL_W4_CHLD; 1107 hfp_ag_send_call_waiting_notification(hfp_connection->rfcomm_cid); 1108 indicator_index = get_ag_indicator_index_for_name("callsetup"); 1109 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 1110 break; 1111 default: 1112 break; 1113 } 1114 return 0; 1115 } 1116 1117 // functions extracted from hfp_ag_call_sm below 1118 static void hfp_ag_handle_reject_incoming_call(void){ 1119 hfp_connection_t * hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_INITIATED); 1120 if (!hfp_connection){ 1121 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection in initiated state"); 1122 return; 1123 } 1124 1125 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_REJECTED); 1126 hfp_connection->call_state = HFP_CALL_IDLE; 1127 hfp_connection->send_error = 1; 1128 hfp_ag_run_for_context(hfp_connection); 1129 } 1130 1131 // hfp_connection is used to identify originating HF 1132 static void hfp_ag_call_sm(hfp_ag_call_event_t event, hfp_connection_t * hfp_connection){ 1133 int indicator_index; 1134 int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup"); 1135 int callheld_indicator_index = get_ag_indicator_index_for_name("callheld"); 1136 int call_indicator_index = get_ag_indicator_index_for_name("call"); 1137 1138 //printf("hfp_ag_call_sm event %d \n", event); 1139 switch (event){ 1140 case HFP_AG_INCOMING_CALL: 1141 switch (hfp_gsm_call_status()){ 1142 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1143 switch (hfp_gsm_callsetup_status()){ 1144 case HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS: 1145 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL); 1146 hfp_ag_set_callsetup_indicator(); 1147 hfp_ag_trigger_incoming_call(); 1148 log_info("AG rings"); 1149 break; 1150 default: 1151 break; 1152 } 1153 break; 1154 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1155 switch (hfp_gsm_callsetup_status()){ 1156 case HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS: 1157 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL); 1158 hfp_ag_set_callsetup_indicator(); 1159 hfp_ag_trigger_incoming_call(); 1160 log_info("AG call waiting"); 1161 break; 1162 default: 1163 break; 1164 } 1165 break; 1166 } 1167 break; 1168 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG: 1169 switch (hfp_gsm_call_status()){ 1170 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1171 switch (hfp_gsm_callsetup_status()){ 1172 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1173 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG); 1174 hfp_ag_set_call_indicator(); 1175 hfp_ag_set_callsetup_indicator(); 1176 hfp_ag_ag_accept_call(); 1177 log_info("AG answers call, accept call by GSM"); 1178 break; 1179 default: 1180 break; 1181 } 1182 break; 1183 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1184 switch (hfp_gsm_callsetup_status()){ 1185 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1186 log_info("AG: current call is placed on hold, incoming call gets active"); 1187 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG); 1188 hfp_ag_set_callsetup_indicator(); 1189 hfp_ag_set_callheld_indicator(); 1190 hfp_ag_transfer_callsetup_state(); 1191 hfp_ag_transfer_callheld_state(); 1192 break; 1193 default: 1194 break; 1195 } 1196 break; 1197 } 1198 break; 1199 1200 case HFP_AG_HELD_CALL_JOINED_BY_AG: 1201 switch (hfp_gsm_call_status()){ 1202 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1203 switch (hfp_gsm_callheld_status()){ 1204 case HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED: 1205 log_info("AG: joining held call with active call"); 1206 hfp_gsm_handle_event(HFP_AG_HELD_CALL_JOINED_BY_AG); 1207 hfp_ag_set_callheld_indicator(); 1208 hfp_ag_transfer_callheld_state(); 1209 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CONFERENCE_CALL); 1210 break; 1211 default: 1212 break; 1213 } 1214 break; 1215 default: 1216 break; 1217 } 1218 break; 1219 1220 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF: 1221 switch (hfp_gsm_call_status()){ 1222 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1223 switch (hfp_gsm_callsetup_status()){ 1224 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1225 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF); 1226 hfp_ag_set_callsetup_indicator(); 1227 hfp_ag_set_call_indicator(); 1228 hfp_ag_hf_accept_call(hfp_connection); 1229 hfp_connection->ok_pending = 1; 1230 log_info("HF answers call, accept call by GSM"); 1231 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CALL_ANSWERED); 1232 break; 1233 default: 1234 break; 1235 } 1236 break; 1237 default: 1238 break; 1239 } 1240 break; 1241 1242 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG: 1243 switch (hfp_gsm_call_status()){ 1244 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1245 switch (hfp_gsm_callsetup_status()){ 1246 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1247 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG); 1248 hfp_ag_response_and_hold_active = 1; 1249 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD; 1250 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1251 // as with regualr call 1252 hfp_ag_set_call_indicator(); 1253 hfp_ag_set_callsetup_indicator(); 1254 hfp_ag_ag_accept_call(); 1255 log_info("AG response and hold - hold by AG"); 1256 break; 1257 default: 1258 break; 1259 } 1260 break; 1261 default: 1262 break; 1263 } 1264 break; 1265 1266 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF: 1267 switch (hfp_gsm_call_status()){ 1268 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1269 switch (hfp_gsm_callsetup_status()){ 1270 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1271 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF); 1272 hfp_ag_response_and_hold_active = 1; 1273 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD; 1274 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1275 // as with regualr call 1276 hfp_ag_set_call_indicator(); 1277 hfp_ag_set_callsetup_indicator(); 1278 hfp_ag_hf_accept_call(hfp_connection); 1279 log_info("AG response and hold - hold by HF"); 1280 break; 1281 default: 1282 break; 1283 } 1284 break; 1285 default: 1286 break; 1287 } 1288 break; 1289 1290 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG: 1291 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF: 1292 if (!hfp_ag_response_and_hold_active) break; 1293 if (hfp_ag_response_and_hold_state != HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD) break; 1294 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG); 1295 hfp_ag_response_and_hold_active = 0; 1296 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_HELD_INCOMING_ACCEPTED; 1297 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1298 log_info("Held Call accepted and active"); 1299 break; 1300 1301 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG: 1302 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF: 1303 if (!hfp_ag_response_and_hold_active) break; 1304 if (hfp_ag_response_and_hold_state != HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD) break; 1305 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG); 1306 hfp_ag_response_and_hold_active = 0; 1307 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED; 1308 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1309 // from terminate by ag 1310 hfp_ag_set_call_indicator(); 1311 hfp_ag_trigger_terminate_call(); 1312 break; 1313 1314 case HFP_AG_TERMINATE_CALL_BY_HF: 1315 switch (hfp_gsm_call_status()){ 1316 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1317 switch (hfp_gsm_callsetup_status()){ 1318 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1319 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_HF); 1320 hfp_ag_set_callsetup_indicator(); 1321 hfp_ag_transfer_callsetup_state(); 1322 hfp_ag_trigger_reject_call(); 1323 log_info("HF Rejected Incoming call, AG terminate call"); 1324 break; 1325 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE: 1326 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE: 1327 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_HF); 1328 hfp_ag_set_callsetup_indicator(); 1329 hfp_ag_transfer_callsetup_state(); 1330 log_info("AG terminate outgoing call process"); 1331 break; 1332 default: 1333 break; 1334 } 1335 break; 1336 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1337 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_HF); 1338 hfp_ag_set_call_indicator(); 1339 hfp_ag_transfer_call_state(); 1340 hfp_connection->call_state = HFP_CALL_IDLE; 1341 log_info("AG terminate call"); 1342 break; 1343 } 1344 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CALL_TERMINATED); 1345 break; 1346 1347 case HFP_AG_TERMINATE_CALL_BY_AG: 1348 switch (hfp_gsm_call_status()){ 1349 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1350 switch (hfp_gsm_callsetup_status()){ 1351 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1352 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_AG); 1353 hfp_ag_set_callsetup_indicator(); 1354 hfp_ag_trigger_reject_call(); 1355 log_info("AG Rejected Incoming call, AG terminate call"); 1356 break; 1357 default: 1358 break; 1359 } 1360 break; 1361 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1362 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_AG); 1363 hfp_ag_set_callsetup_indicator(); 1364 hfp_ag_set_call_indicator(); 1365 hfp_ag_trigger_terminate_call(); 1366 log_info("AG terminate call"); 1367 break; 1368 default: 1369 break; 1370 } 1371 break; 1372 case HFP_AG_CALL_DROPPED: 1373 switch (hfp_gsm_call_status()){ 1374 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1375 switch (hfp_gsm_callsetup_status()){ 1376 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1377 hfp_ag_stop_ringing(); 1378 log_info("Incoming call interrupted"); 1379 break; 1380 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE: 1381 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE: 1382 log_info("Outgoing call interrupted\n"); 1383 log_info("AG notify call dropped\n"); 1384 break; 1385 default: 1386 break; 1387 } 1388 hfp_gsm_handle_event(HFP_AG_CALL_DROPPED); 1389 hfp_ag_set_callsetup_indicator(); 1390 hfp_ag_transfer_callsetup_state(); 1391 hfp_ag_trigger_terminate_call(); 1392 break; 1393 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1394 if (hfp_ag_response_and_hold_active) { 1395 hfp_gsm_handle_event(HFP_AG_CALL_DROPPED); 1396 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED; 1397 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1398 } 1399 hfp_gsm_handle_event(HFP_AG_CALL_DROPPED); 1400 hfp_ag_set_callsetup_indicator(); 1401 hfp_ag_set_call_indicator(); 1402 hfp_ag_trigger_terminate_call(); 1403 log_info("AG notify call dropped"); 1404 break; 1405 default: 1406 break; 1407 } 1408 break; 1409 1410 case HFP_AG_OUTGOING_CALL_INITIATED: 1411 // directly reject call if number of free slots is exceeded 1412 if (!hfp_gsm_call_possible()){ 1413 hfp_connection->send_error = 1; 1414 hfp_ag_run_for_context(hfp_connection); 1415 break; 1416 } 1417 hfp_gsm_handle_event_with_call_number(HFP_AG_OUTGOING_CALL_INITIATED, (const char *) &hfp_connection->line_buffer[3]); 1418 1419 hfp_connection->call_state = HFP_CALL_OUTGOING_INITIATED; 1420 1421 hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER, (const char *) &hfp_connection->line_buffer[3]); 1422 break; 1423 1424 case HFP_AG_OUTGOING_REDIAL_INITIATED:{ 1425 // directly reject call if number of free slots is exceeded 1426 if (!hfp_gsm_call_possible()){ 1427 hfp_connection->send_error = 1; 1428 hfp_ag_run_for_context(hfp_connection); 1429 break; 1430 } 1431 1432 hfp_gsm_handle_event(HFP_AG_OUTGOING_REDIAL_INITIATED); 1433 hfp_connection->call_state = HFP_CALL_OUTGOING_INITIATED; 1434 1435 log_info("Redial last number"); 1436 char * last_dialed_number = hfp_gsm_last_dialed_number(); 1437 1438 if (strlen(last_dialed_number) > 0){ 1439 log_info("Last number exists: accept call"); 1440 hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER, last_dialed_number); 1441 } else { 1442 log_info("log_infoLast number missing: reject call"); 1443 hfp_ag_handle_reject_incoming_call(); 1444 } 1445 break; 1446 } 1447 case HFP_AG_OUTGOING_CALL_REJECTED: 1448 hfp_ag_handle_reject_incoming_call(); 1449 break; 1450 1451 case HFP_AG_OUTGOING_CALL_ACCEPTED:{ 1452 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_INITIATED); 1453 if (!hfp_connection){ 1454 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection in initiated state"); 1455 break; 1456 } 1457 1458 hfp_connection->ok_pending = 1; 1459 hfp_connection->call_state = HFP_CALL_OUTGOING_DIALING; 1460 1461 // trigger callsetup to be 1462 int put_call_on_hold = hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT; 1463 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_ACCEPTED); 1464 1465 hfp_ag_set_callsetup_indicator(); 1466 indicator_index = get_ag_indicator_index_for_name("callsetup"); 1467 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 1468 1469 // put current call on hold if active 1470 if (put_call_on_hold){ 1471 log_info("AG putting current call on hold for new outgoing calllog_info"); 1472 hfp_ag_set_callheld_indicator(); 1473 indicator_index = get_ag_indicator_index_for_name("callheld"); 1474 hfp_ag_send_transfer_ag_indicators_status_cmd(hfp_connection->rfcomm_cid, &hfp_ag_indicators[indicator_index]); 1475 } 1476 1477 // start audio if needed 1478 hfp_ag_establish_audio_connection(hfp_connection->acl_handle); 1479 break; 1480 } 1481 case HFP_AG_OUTGOING_CALL_RINGING: 1482 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_DIALING); 1483 if (!hfp_connection){ 1484 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection in dialing state"); 1485 break; 1486 } 1487 1488 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_RINGING); 1489 hfp_connection->call_state = HFP_CALL_OUTGOING_RINGING; 1490 hfp_ag_set_callsetup_indicator(); 1491 hfp_ag_transfer_callsetup_state(); 1492 break; 1493 1494 case HFP_AG_OUTGOING_CALL_ESTABLISHED:{ 1495 // get outgoing call 1496 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_RINGING); 1497 if (!hfp_connection){ 1498 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_DIALING); 1499 } 1500 if (!hfp_connection){ 1501 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection"); 1502 break; 1503 } 1504 1505 int CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS = hfp_gsm_callheld_status() == HFP_CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS; 1506 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_ESTABLISHED); 1507 hfp_connection->call_state = HFP_CALL_ACTIVE; 1508 hfp_ag_set_callsetup_indicator(); 1509 hfp_ag_set_call_indicator(); 1510 hfp_ag_transfer_call_state(); 1511 hfp_ag_transfer_callsetup_state(); 1512 if (CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS){ 1513 hfp_ag_set_callheld_indicator(); 1514 hfp_ag_transfer_callheld_state(); 1515 } 1516 break; 1517 } 1518 1519 case HFP_AG_CALL_HOLD_USER_BUSY: 1520 hfp_gsm_handle_event(HFP_AG_CALL_HOLD_USER_BUSY); 1521 hfp_ag_set_callsetup_indicator(); 1522 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 1523 hfp_connection->call_state = HFP_CALL_ACTIVE; 1524 log_info("AG: Call Waiting, User Busy"); 1525 break; 1526 1527 case HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL:{ 1528 int call_setup_in_progress = hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS; 1529 int call_held = hfp_gsm_callheld_status() != HFP_CALLHELD_STATUS_NO_CALLS_HELD; 1530 1531 // Releases all active calls (if any exist) and accepts the other (held or waiting) call. 1532 if (call_held || call_setup_in_progress){ 1533 hfp_gsm_handle_event_with_call_index(HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection->call_index); 1534 1535 } 1536 1537 if (call_setup_in_progress){ 1538 log_info("AG: Call Dropped, Accept new call"); 1539 hfp_ag_set_callsetup_indicator(); 1540 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 1541 } else { 1542 log_info("AG: Call Dropped, Resume held call"); 1543 } 1544 if (call_held){ 1545 hfp_ag_set_callheld_indicator(); 1546 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1547 } 1548 1549 hfp_connection->call_state = HFP_CALL_ACTIVE; 1550 break; 1551 } 1552 1553 case HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL:{ 1554 // Places all active calls (if any exist) on hold and accepts the other (held or waiting) call. 1555 // only update if callsetup changed 1556 int call_setup_in_progress = hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS; 1557 hfp_gsm_handle_event_with_call_index(HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection->call_index); 1558 1559 if (call_setup_in_progress){ 1560 log_info("AG: Call on Hold, Accept new call"); 1561 hfp_ag_set_callsetup_indicator(); 1562 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 1563 } else { 1564 log_info("AG: Swap calls"); 1565 } 1566 1567 hfp_ag_set_callheld_indicator(); 1568 // hfp_ag_set_callheld_state(HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED); 1569 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1570 hfp_connection->call_state = HFP_CALL_ACTIVE; 1571 break; 1572 } 1573 1574 case HFP_AG_CALL_HOLD_ADD_HELD_CALL: 1575 // Adds a held call to the conversation. 1576 if (hfp_gsm_callheld_status() != HFP_CALLHELD_STATUS_NO_CALLS_HELD){ 1577 log_info("AG: Join 3-way-call"); 1578 hfp_gsm_handle_event(HFP_AG_CALL_HOLD_ADD_HELD_CALL); 1579 hfp_ag_set_callheld_indicator(); 1580 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1581 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CONFERENCE_CALL); 1582 } 1583 hfp_connection->call_state = HFP_CALL_ACTIVE; 1584 break; 1585 case HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS: 1586 // Connects the two calls and disconnects the subscriber from both calls (Explicit Call Transfer) 1587 hfp_gsm_handle_event(HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS); 1588 log_info("AG: Transfer call -> Connect two calls and disconnect"); 1589 hfp_ag_set_call_indicator(); 1590 hfp_ag_set_callheld_indicator(); 1591 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 1592 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1593 hfp_connection->call_state = HFP_CALL_IDLE; 1594 break; 1595 1596 default: 1597 break; 1598 } 1599 1600 1601 } 1602 1603 1604 static void hfp_ag_send_call_status(hfp_connection_t * hfp_connection, int call_index){ 1605 hfp_gsm_call_t * active_call = hfp_gsm_call(call_index); 1606 if (!active_call) return; 1607 1608 int idx = active_call->index; 1609 hfp_enhanced_call_dir_t dir = active_call->direction; 1610 hfp_enhanced_call_status_t status = active_call->enhanced_status; 1611 hfp_enhanced_call_mode_t mode = active_call->mode; 1612 hfp_enhanced_call_mpty_t mpty = active_call->mpty; 1613 uint8_t type = active_call->clip_type; 1614 char * number = active_call->clip_number; 1615 1616 char buffer[100]; 1617 // TODO: check length of a buffer, to fit the MTU 1618 int offset = snprintf(buffer, sizeof(buffer), "\r\n%s: %d,%d,%d,%d,%d", HFP_LIST_CURRENT_CALLS, idx, dir, status, mode, mpty); 1619 if (number){ 1620 offset += snprintf(buffer+offset, sizeof(buffer)-offset-3, ", \"%s\",%u", number, type); 1621 } 1622 snprintf(buffer+offset, sizeof(buffer)-offset, "\r\n"); 1623 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, 1624 mode, mpty, type, number); 1625 send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer); 1626 } 1627 1628 1629 // sends pending command, returns if command was sent 1630 static int hfp_ag_send_commands(hfp_connection_t *hfp_connection){ 1631 1632 if (hfp_connection->send_status_of_current_calls){ 1633 hfp_connection->ok_pending = 0; 1634 if (hfp_connection->next_call_index < hfp_gsm_get_number_of_calls()){ 1635 hfp_connection->next_call_index++; 1636 hfp_ag_send_call_status(hfp_connection, hfp_connection->next_call_index); 1637 return 1; 1638 } else { 1639 // 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 1640 hfp_connection->next_call_index = 0; 1641 hfp_connection->ok_pending = 1; 1642 hfp_connection->send_status_of_current_calls = 0; 1643 } 1644 } 1645 1646 if (hfp_connection->ag_notify_incoming_call_waiting){ 1647 hfp_connection->ag_notify_incoming_call_waiting = 0; 1648 hfp_ag_send_call_waiting_notification(hfp_connection->rfcomm_cid); 1649 return 1; 1650 } 1651 1652 if (hfp_connection->command == HFP_CMD_UNKNOWN){ 1653 hfp_connection->ok_pending = 0; 1654 hfp_connection->send_error = 0; 1655 hfp_connection->command = HFP_CMD_NONE; 1656 hfp_ag_send_error(hfp_connection->rfcomm_cid); 1657 return 1; 1658 } 1659 1660 if (hfp_connection->send_error){ 1661 hfp_connection->send_error = 0; 1662 hfp_connection->command = HFP_CMD_NONE; 1663 hfp_ag_send_error(hfp_connection->rfcomm_cid); 1664 return 1; 1665 } 1666 1667 // note: before update AG indicators and ok_pending 1668 if (hfp_connection->send_response_and_hold_status){ 1669 int status = hfp_connection->send_response_and_hold_status - 1; 1670 hfp_connection->send_response_and_hold_status = 0; 1671 hfp_ag_send_set_response_and_hold(hfp_connection->rfcomm_cid, status); 1672 return 1; 1673 } 1674 1675 if (hfp_connection->ok_pending){ 1676 hfp_connection->ok_pending = 0; 1677 hfp_connection->command = HFP_CMD_NONE; 1678 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 1679 return 1; 1680 } 1681 1682 // update AG indicators 1683 if (hfp_connection->ag_indicators_status_update_bitmap){ 1684 int i; 1685 for (i=0;i<hfp_connection->ag_indicators_nr;i++){ 1686 if (get_bit(hfp_connection->ag_indicators_status_update_bitmap, i)){ 1687 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, i, 0); 1688 if (!hfp_connection->enable_status_update_for_ag_indicators) { 1689 log_info("+CMER:3,0,0,0 - not sending update for '%s'", hfp_ag_indicators[i].name); 1690 break; 1691 } 1692 hfp_ag_send_transfer_ag_indicators_status_cmd(hfp_connection->rfcomm_cid, &hfp_ag_indicators[i]); 1693 return 1; 1694 } 1695 } 1696 } 1697 1698 if (hfp_connection->ag_ring){ 1699 hfp_connection->ag_ring = 0; 1700 hfp_connection->command = HFP_CMD_NONE; 1701 hfp_ag_send_ring(hfp_connection->rfcomm_cid); 1702 return 1; 1703 } 1704 1705 if (hfp_connection->ag_send_clip){ 1706 hfp_connection->ag_send_clip = 0; 1707 hfp_connection->command = HFP_CMD_NONE; 1708 hfp_ag_send_clip(hfp_connection->rfcomm_cid); 1709 return 1; 1710 } 1711 1712 if (hfp_connection->send_phone_number_for_voice_tag){ 1713 hfp_connection->send_phone_number_for_voice_tag = 0; 1714 hfp_connection->command = HFP_CMD_NONE; 1715 hfp_connection->ok_pending = 1; 1716 hfp_ag_send_phone_number_for_voice_tag_cmd(hfp_connection->rfcomm_cid); 1717 return 1; 1718 } 1719 1720 if (hfp_connection->send_subscriber_number){ 1721 if (hfp_connection->next_subscriber_number_to_send < subscriber_numbers_count){ 1722 hfp_phone_number_t phone = subscriber_numbers[hfp_connection->next_subscriber_number_to_send++]; 1723 hfp_send_subscriber_number_cmd(hfp_connection->rfcomm_cid, phone.type, phone.number); 1724 } else { 1725 hfp_connection->send_subscriber_number = 0; 1726 hfp_connection->next_subscriber_number_to_send = 0; 1727 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 1728 } 1729 hfp_connection->command = HFP_CMD_NONE; 1730 return 1; 1731 } 1732 1733 if (hfp_connection->send_microphone_gain){ 1734 hfp_connection->send_microphone_gain = 0; 1735 hfp_connection->command = HFP_CMD_NONE; 1736 hfp_ag_send_set_microphone_gain_cmd(hfp_connection->rfcomm_cid, hfp_connection->microphone_gain); 1737 return 1; 1738 } 1739 1740 if (hfp_connection->send_speaker_gain){ 1741 hfp_connection->send_speaker_gain = 0; 1742 hfp_connection->command = HFP_CMD_NONE; 1743 hfp_ag_send_set_speaker_gain_cmd(hfp_connection->rfcomm_cid, hfp_connection->speaker_gain); 1744 return 1; 1745 } 1746 1747 if (hfp_connection->send_ag_status_indicators){ 1748 hfp_connection->send_ag_status_indicators = 0; 1749 hfp_ag_send_retrieve_indicators_status_cmd(hfp_connection->rfcomm_cid); 1750 return 1; 1751 } 1752 1753 return 0; 1754 } 1755 1756 static void hfp_ag_run_for_context(hfp_connection_t *hfp_connection){ 1757 1758 if (!hfp_connection) return; 1759 1760 if (!hfp_connection->rfcomm_cid) return; 1761 1762 if (hfp_connection->local_role != HFP_ROLE_AG) { 1763 log_info("HFP AG%p, wrong role %u", hfp_connection, hfp_connection->local_role); 1764 return; 1765 } 1766 1767 if (!rfcomm_can_send_packet_now(hfp_connection->rfcomm_cid)) { 1768 log_info("hfp_ag_run_for_context: request can send for 0x%02x", hfp_connection->rfcomm_cid); 1769 rfcomm_request_can_send_now_event(hfp_connection->rfcomm_cid); 1770 return; 1771 } 1772 1773 int cmd_sent = hfp_ag_send_commands(hfp_connection); 1774 1775 // trigger codec exchange if requested by app 1776 if (hfp_connection->trigger_codec_exchange){ 1777 log_info("trigger codec, command %u, codec state %u", hfp_connection->command, hfp_connection->codecs_state); 1778 } 1779 1780 if (hfp_connection->trigger_codec_exchange && (hfp_connection->command == HFP_CMD_NONE)){ 1781 switch (hfp_connection->codecs_state){ 1782 case HFP_CODECS_IDLE: 1783 case HFP_CODECS_RECEIVED_LIST: 1784 case HFP_CODECS_AG_RESEND_COMMON_CODEC: 1785 case HFP_CODECS_ERROR: 1786 hfp_connection->trigger_codec_exchange = 0; 1787 hfp_connection->command = HFP_CMD_AG_SEND_COMMON_CODEC; 1788 break; 1789 default: 1790 break; 1791 } 1792 } 1793 1794 if (!cmd_sent){ 1795 cmd_sent = hfp_ag_run_for_context_service_level_connection(hfp_connection); 1796 } 1797 1798 if (!cmd_sent){ 1799 cmd_sent = hfp_ag_run_for_context_service_level_connection_queries(hfp_connection); 1800 } 1801 1802 if (!cmd_sent){ 1803 cmd_sent = call_setup_state_machine(hfp_connection); 1804 } 1805 1806 if (!cmd_sent){ 1807 cmd_sent = hfp_ag_run_for_audio_connection(hfp_connection); 1808 } 1809 1810 if ((hfp_connection->command == HFP_CMD_NONE) && !cmd_sent){ 1811 // log_info("hfp_connection->command == HFP_CMD_NONE"); 1812 switch(hfp_connection->state){ 1813 case HFP_W2_DISCONNECT_RFCOMM: 1814 hfp_connection->state = HFP_W4_RFCOMM_DISCONNECTED; 1815 rfcomm_disconnect(hfp_connection->rfcomm_cid); 1816 break; 1817 default: 1818 break; 1819 } 1820 } 1821 1822 if (cmd_sent){ 1823 hfp_connection->command = HFP_CMD_NONE; 1824 rfcomm_request_can_send_now_event(hfp_connection->rfcomm_cid); 1825 } 1826 } 1827 1828 static hfp_generic_status_indicator_t *get_hf_indicator_by_number(int number){ 1829 int i; 1830 for (i=0;i< hfp_generic_status_indicators_nr;i++){ 1831 hfp_generic_status_indicator_t * indicator = &hfp_generic_status_indicators[i]; 1832 if (indicator->uuid == number){ 1833 return indicator; 1834 } 1835 } 1836 return NULL; 1837 } 1838 1839 static int hfp_parser_is_end_of_line(uint8_t byte){ 1840 return (byte == '\n') || (byte == '\r'); 1841 } 1842 1843 static void hfp_ag_handle_rfcomm_data(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 1844 UNUSED(packet_type); // ok: only called with RFCOMM_DATA_PACKET 1845 1846 // assertion: size >= 1 as rfcomm.c does not deliver empty packets 1847 if (size < 1) return; 1848 1849 hfp_connection_t * hfp_connection = get_hfp_connection_context_for_rfcomm_cid(channel); 1850 if (!hfp_connection) return; 1851 1852 hfp_log_rfcomm_message("HFP_AG_RX", packet, size); 1853 1854 // process messages byte-wise 1855 int pos; 1856 for (pos = 0; pos < size ; pos++){ 1857 hfp_parse(hfp_connection, packet[pos], 0); 1858 1859 // parse until end of line 1860 if (!hfp_parser_is_end_of_line(packet[pos])) continue; 1861 1862 int value; 1863 hfp_generic_status_indicator_t * indicator; 1864 switch(hfp_connection->command){ 1865 case HFP_CMD_RESPONSE_AND_HOLD_QUERY: 1866 if (hfp_ag_response_and_hold_active){ 1867 hfp_connection->send_response_and_hold_status = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD + 1; 1868 } 1869 hfp_connection->ok_pending = 1; 1870 break; 1871 case HFP_CMD_RESPONSE_AND_HOLD_COMMAND: 1872 value = btstack_atoi((char *)&hfp_connection->line_buffer[0]); 1873 log_info("HF Response and Hold: %u", value); 1874 switch(value){ 1875 case HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD: 1876 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF, hfp_connection); 1877 break; 1878 case HFP_RESPONSE_AND_HOLD_HELD_INCOMING_ACCEPTED: 1879 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF, hfp_connection); 1880 break; 1881 case HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED: 1882 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF, hfp_connection); 1883 break; 1884 default: 1885 break; 1886 } 1887 hfp_connection->ok_pending = 1; 1888 break; 1889 case HFP_CMD_HF_INDICATOR_STATUS: 1890 hfp_connection->command = HFP_CMD_NONE; 1891 // find indicator by assigned number 1892 indicator = get_hf_indicator_by_number(hfp_connection->parser_indicator_index); 1893 if (!indicator){ 1894 hfp_connection->send_error = 1; 1895 break; 1896 } 1897 value = btstack_atoi((char *)&hfp_connection->line_buffer[0]); 1898 switch (indicator->uuid){ 1899 case 1: // enhanced security 1900 if (value > 1) { 1901 hfp_connection->send_error = 1; 1902 return; 1903 } 1904 log_info("HF Indicator 'enhanced security' set to %u", value); 1905 break; 1906 case 2: // battery level 1907 if (value > 100){ 1908 hfp_connection->send_error = 1; 1909 return; 1910 } 1911 log_info("HF Indicator 'battery' set to %u", value); 1912 break; 1913 default: 1914 log_info("HF Indicator unknown set to %u", value); 1915 break; 1916 } 1917 hfp_connection->ok_pending = 1; 1918 break; 1919 case HFP_CMD_RETRIEVE_AG_INDICATORS_STATUS: 1920 // expected by SLC state machine 1921 if (hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) break; 1922 hfp_connection->send_ag_indicators_segment = 0; 1923 hfp_connection->send_ag_status_indicators = 1; 1924 break; 1925 case HFP_CMD_LIST_CURRENT_CALLS: 1926 hfp_connection->command = HFP_CMD_NONE; 1927 hfp_connection->next_call_index = 0; 1928 hfp_connection->send_status_of_current_calls = 1; 1929 break; 1930 case HFP_CMD_GET_SUBSCRIBER_NUMBER_INFORMATION: 1931 if (subscriber_numbers_count == 0){ 1932 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 1933 break; 1934 } 1935 hfp_connection->next_subscriber_number_to_send = 0; 1936 hfp_connection->send_subscriber_number = 1; 1937 break; 1938 case HFP_CMD_TRANSMIT_DTMF_CODES: 1939 hfp_connection->command = HFP_CMD_NONE; 1940 hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_TRANSMIT_DTMF_CODES, (const char *) &hfp_connection->line_buffer[0]); 1941 break; 1942 case HFP_CMD_HF_REQUEST_PHONE_NUMBER: 1943 hfp_connection->command = HFP_CMD_NONE; 1944 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_ATTACH_NUMBER_TO_VOICE_TAG); 1945 break; 1946 case HFP_CMD_TURN_OFF_EC_AND_NR: 1947 hfp_connection->command = HFP_CMD_NONE; 1948 if (get_bit(hfp_supported_features, HFP_AGSF_EC_NR_FUNCTION)){ 1949 hfp_connection->ok_pending = 1; 1950 hfp_supported_features = store_bit(hfp_supported_features, HFP_AGSF_EC_NR_FUNCTION, hfp_connection->ag_echo_and_noise_reduction); 1951 log_info("AG: EC/NR = %u", hfp_connection->ag_echo_and_noise_reduction); 1952 } else { 1953 hfp_connection->send_error = 1; 1954 } 1955 break; 1956 case HFP_CMD_CALL_ANSWERED: 1957 hfp_connection->command = HFP_CMD_NONE; 1958 log_info("HFP: ATA"); 1959 hfp_ag_call_sm(HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF, hfp_connection); 1960 break; 1961 case HFP_CMD_HANG_UP_CALL: 1962 hfp_connection->command = HFP_CMD_NONE; 1963 hfp_connection->ok_pending = 1; 1964 hfp_ag_call_sm(HFP_AG_TERMINATE_CALL_BY_HF, hfp_connection); 1965 break; 1966 case HFP_CMD_CALL_HOLD: { 1967 // TODO: fully implement this 1968 log_error("HFP: unhandled call hold type %c", hfp_connection->line_buffer[0]); 1969 hfp_connection->command = HFP_CMD_NONE; 1970 hfp_connection->ok_pending = 1; 1971 hfp_connection->call_index = 0; 1972 1973 if (hfp_connection->line_buffer[1] != '\0'){ 1974 hfp_connection->call_index = btstack_atoi((char *)&hfp_connection->line_buffer[1]); 1975 } 1976 1977 switch (hfp_connection->line_buffer[0]){ 1978 case '0': 1979 // Releases all held calls or sets User Determined User Busy (UDUB) for a waiting call. 1980 hfp_ag_call_sm(HFP_AG_CALL_HOLD_USER_BUSY, hfp_connection); 1981 break; 1982 case '1': 1983 // Releases all active calls (if any exist) and accepts the other (held or waiting) call. 1984 // Where both a held and a waiting call exist, the above procedures shall apply to the 1985 // waiting call (i.e., not to the held call) in conflicting situation. 1986 hfp_ag_call_sm(HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection); 1987 break; 1988 case '2': 1989 // Places all active calls (if any exist) on hold and accepts the other (held or waiting) call. 1990 // Where both a held and a waiting call exist, the above procedures shall apply to the 1991 // waiting call (i.e., not to the held call) in conflicting situation. 1992 hfp_ag_call_sm(HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection); 1993 break; 1994 case '3': 1995 // Adds a held call to the conversation. 1996 hfp_ag_call_sm(HFP_AG_CALL_HOLD_ADD_HELD_CALL, hfp_connection); 1997 break; 1998 case '4': 1999 // Connects the two calls and disconnects the subscriber from both calls (Explicit Call Transfer). 2000 hfp_ag_call_sm(HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS, hfp_connection); 2001 break; 2002 default: 2003 break; 2004 } 2005 break; 2006 } 2007 case HFP_CMD_CALL_PHONE_NUMBER: 2008 hfp_connection->command = HFP_CMD_NONE; 2009 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_INITIATED, hfp_connection); 2010 break; 2011 case HFP_CMD_REDIAL_LAST_NUMBER: 2012 hfp_connection->command = HFP_CMD_NONE; 2013 hfp_ag_call_sm(HFP_AG_OUTGOING_REDIAL_INITIATED, hfp_connection); 2014 break; 2015 case HFP_CMD_ENABLE_CLIP: 2016 hfp_connection->command = HFP_CMD_NONE; 2017 hfp_connection->clip_enabled = hfp_connection->line_buffer[8] != '0'; 2018 log_info("hfp: clip set, now: %u", hfp_connection->clip_enabled); 2019 hfp_connection->ok_pending = 1; 2020 break; 2021 case HFP_CMD_ENABLE_CALL_WAITING_NOTIFICATION: 2022 hfp_connection->command = HFP_CMD_NONE; 2023 hfp_connection->call_waiting_notification_enabled = hfp_connection->line_buffer[8] != '0'; 2024 log_info("hfp: call waiting notification set, now: %u", hfp_connection->call_waiting_notification_enabled); 2025 hfp_connection->ok_pending = 1; 2026 break; 2027 case HFP_CMD_SET_SPEAKER_GAIN: 2028 hfp_connection->command = HFP_CMD_NONE; 2029 hfp_connection->ok_pending = 1; 2030 log_info("HF speaker gain = %u", hfp_connection->speaker_gain); 2031 break; 2032 case HFP_CMD_SET_MICROPHONE_GAIN: 2033 hfp_connection->command = HFP_CMD_NONE; 2034 hfp_connection->ok_pending = 1; 2035 log_info("HF microphone gain = %u", hfp_connection->microphone_gain); 2036 break; 2037 default: 2038 break; 2039 } 2040 } 2041 } 2042 2043 static void hfp_run(void){ 2044 btstack_linked_list_iterator_t it; 2045 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 2046 while (btstack_linked_list_iterator_has_next(&it)){ 2047 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 2048 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 2049 hfp_ag_run_for_context(hfp_connection); 2050 } 2051 } 2052 2053 static void rfcomm_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 2054 switch (packet_type){ 2055 case RFCOMM_DATA_PACKET: 2056 hfp_ag_handle_rfcomm_data(packet_type, channel, packet, size); 2057 break; 2058 case HCI_EVENT_PACKET: 2059 if (packet[0] == RFCOMM_EVENT_CAN_SEND_NOW){ 2060 uint16_t rfcomm_cid = rfcomm_event_can_send_now_get_rfcomm_cid(packet); 2061 hfp_ag_run_for_context(get_hfp_connection_context_for_rfcomm_cid(rfcomm_cid)); 2062 return; 2063 } 2064 hfp_handle_rfcomm_event(packet_type, channel, packet, size, HFP_ROLE_AG); 2065 break; 2066 default: 2067 break; 2068 } 2069 2070 hfp_run(); 2071 } 2072 2073 static void hci_event_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 2074 hfp_handle_hci_event(packet_type, channel, packet, size, HFP_ROLE_AG); 2075 2076 // allow for sco established -> ring transition 2077 if (packet_type != HCI_EVENT_PACKET) return; 2078 if (hci_event_packet_get_type(packet) != HCI_EVENT_SYNCHRONOUS_CONNECTION_COMPLETE) return; 2079 hfp_run(); 2080 } 2081 2082 void hfp_ag_init_codecs(int codecs_nr, uint8_t * codecs){ 2083 if (codecs_nr > HFP_MAX_NUM_CODECS){ 2084 log_error("hfp_init: codecs_nr (%d) > HFP_MAX_NUM_CODECS (%d)", codecs_nr, HFP_MAX_NUM_CODECS); 2085 return; 2086 } 2087 int i; 2088 hfp_codecs_nr = codecs_nr; 2089 for (i=0; i < codecs_nr; i++){ 2090 hfp_codecs[i] = codecs[i]; 2091 } 2092 } 2093 2094 void hfp_ag_init_supported_features(uint32_t supported_features){ 2095 hfp_supported_features = supported_features; 2096 } 2097 2098 void hfp_ag_init_ag_indicators(int ag_indicators_nr, hfp_ag_indicator_t * ag_indicators){ 2099 hfp_ag_indicators_nr = ag_indicators_nr; 2100 (void)memcpy(hfp_ag_indicators, ag_indicators, 2101 ag_indicators_nr * sizeof(hfp_ag_indicator_t)); 2102 } 2103 2104 void hfp_ag_init_hf_indicators(int hf_indicators_nr, hfp_generic_status_indicator_t * hf_indicators){ 2105 if (hf_indicators_nr > HFP_MAX_NUM_HF_INDICATORS) return; 2106 hfp_generic_status_indicators_nr = hf_indicators_nr; 2107 (void)memcpy(hfp_generic_status_indicators, hf_indicators, 2108 hf_indicators_nr * sizeof(hfp_generic_status_indicator_t)); 2109 } 2110 2111 void hfp_ag_init_call_hold_services(int call_hold_services_nr, const char * call_hold_services[]){ 2112 hfp_ag_call_hold_services_nr = call_hold_services_nr; 2113 (void)memcpy(hfp_ag_call_hold_services, call_hold_services, 2114 call_hold_services_nr * sizeof(char *)); 2115 } 2116 2117 2118 void hfp_ag_init(uint16_t rfcomm_channel_nr){ 2119 2120 hfp_init(); 2121 2122 hci_event_callback_registration.callback = &hci_event_packet_handler; 2123 hci_add_event_handler(&hci_event_callback_registration); 2124 2125 rfcomm_register_service(&rfcomm_packet_handler, rfcomm_channel_nr, 0xffff); 2126 2127 // used to set packet handler for outgoing rfcomm connections - could be handled by emitting an event to us 2128 hfp_set_ag_rfcomm_packet_handler(&rfcomm_packet_handler); 2129 2130 hfp_ag_response_and_hold_active = 0; 2131 subscriber_numbers = NULL; 2132 subscriber_numbers_count = 0; 2133 2134 hfp_gsm_init(); 2135 } 2136 2137 void hfp_ag_establish_service_level_connection(bd_addr_t bd_addr){ 2138 hfp_establish_service_level_connection(bd_addr, BLUETOOTH_SERVICE_CLASS_HANDSFREE, HFP_ROLE_AG); 2139 } 2140 2141 void hfp_ag_release_service_level_connection(hci_con_handle_t acl_handle){ 2142 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2143 if (!hfp_connection){ 2144 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2145 return; 2146 } 2147 hfp_release_service_level_connection(hfp_connection); 2148 hfp_ag_run_for_context(hfp_connection); 2149 } 2150 2151 void hfp_ag_report_extended_audio_gateway_error_result_code(hci_con_handle_t acl_handle, hfp_cme_error_t error){ 2152 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2153 if (!hfp_connection){ 2154 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2155 return; 2156 } 2157 hfp_connection->extended_audio_gateway_error = 0; 2158 if (!hfp_connection->enable_extended_audio_gateway_error_report){ 2159 return; 2160 } 2161 hfp_connection->extended_audio_gateway_error = error; 2162 hfp_ag_run_for_context(hfp_connection); 2163 } 2164 2165 static void hfp_ag_setup_audio_connection(hfp_connection_t * hfp_connection){ 2166 log_info("hfp_ag_setup_audio_connection state %u", hfp_connection->state); 2167 if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED) return; 2168 if (hfp_connection->state >= HFP_W2_DISCONNECT_SCO) return; 2169 2170 hfp_connection->establish_audio_connection = 1; 2171 if (!has_codec_negotiation_feature(hfp_connection)){ 2172 log_info("hfp_ag_establish_audio_connection - no codec negotiation feature, using CVSD"); 2173 hfp_connection->negotiated_codec = HFP_CODEC_CVSD; 2174 hfp_connection->codecs_state = HFP_CODECS_EXCHANGED; 2175 // now, pick link settings 2176 hfp_init_link_settings(hfp_connection, hfp_ag_esco_s4_supported(hfp_connection)); 2177 return; 2178 } 2179 2180 hfp_connection->trigger_codec_exchange = 1; 2181 } 2182 2183 void hfp_ag_establish_audio_connection(hci_con_handle_t acl_handle){ 2184 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2185 if (!hfp_connection){ 2186 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2187 return; 2188 } 2189 hfp_connection->trigger_codec_exchange = 0; 2190 hfp_connection->establish_audio_connection = 0; 2191 hfp_ag_setup_audio_connection(hfp_connection); 2192 hfp_ag_run_for_context(hfp_connection); 2193 } 2194 2195 void hfp_ag_release_audio_connection(hci_con_handle_t acl_handle){ 2196 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2197 if (!hfp_connection){ 2198 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2199 return; 2200 } 2201 hfp_release_audio_connection(hfp_connection); 2202 hfp_ag_run_for_context(hfp_connection); 2203 } 2204 2205 /** 2206 * @brief Enable in-band ring tone 2207 */ 2208 void hfp_ag_set_use_in_band_ring_tone(int use_in_band_ring_tone){ 2209 if (get_bit(hfp_supported_features, HFP_AGSF_IN_BAND_RING_TONE) == use_in_band_ring_tone){ 2210 return; 2211 } 2212 hfp_supported_features = store_bit(hfp_supported_features, HFP_AGSF_IN_BAND_RING_TONE, use_in_band_ring_tone); 2213 2214 btstack_linked_list_iterator_t it; 2215 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 2216 while (btstack_linked_list_iterator_has_next(&it)){ 2217 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 2218 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 2219 hfp_connection->command = HFP_CMD_CHANGE_IN_BAND_RING_TONE_SETTING; 2220 hfp_ag_run_for_context(hfp_connection); 2221 } 2222 } 2223 2224 /** 2225 * @brief Called from GSM 2226 */ 2227 void hfp_ag_incoming_call(void){ 2228 hfp_ag_call_sm(HFP_AG_INCOMING_CALL, NULL); 2229 } 2230 2231 /** 2232 * @brief number is stored. 2233 */ 2234 void hfp_ag_set_clip(uint8_t type, const char * number){ 2235 hfp_gsm_handle_event_with_clip(HFP_AG_SET_CLIP, type, number); 2236 } 2237 2238 void hfp_ag_call_dropped(void){ 2239 hfp_ag_call_sm(HFP_AG_CALL_DROPPED, NULL); 2240 } 2241 2242 // call from AG UI 2243 void hfp_ag_answer_incoming_call(void){ 2244 hfp_ag_call_sm(HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG, NULL); 2245 } 2246 2247 void hfp_ag_join_held_call(void){ 2248 hfp_ag_call_sm(HFP_AG_HELD_CALL_JOINED_BY_AG, NULL); 2249 } 2250 2251 void hfp_ag_terminate_call(void){ 2252 hfp_ag_call_sm(HFP_AG_TERMINATE_CALL_BY_AG, NULL); 2253 } 2254 2255 void hfp_ag_outgoing_call_ringing(void){ 2256 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_RINGING, NULL); 2257 } 2258 2259 void hfp_ag_outgoing_call_established(void){ 2260 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_ESTABLISHED, NULL); 2261 } 2262 2263 void hfp_ag_outgoing_call_rejected(void){ 2264 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_REJECTED, NULL); 2265 } 2266 2267 void hfp_ag_outgoing_call_accepted(void){ 2268 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_ACCEPTED, NULL); 2269 } 2270 2271 void hfp_ag_hold_incoming_call(void){ 2272 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG, NULL); 2273 } 2274 2275 void hfp_ag_accept_held_incoming_call(void) { 2276 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG, NULL); 2277 } 2278 2279 void hfp_ag_reject_held_incoming_call(void){ 2280 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG, NULL); 2281 } 2282 2283 static void hfp_ag_set_ag_indicator(const char * name, int value){ 2284 int indicator_index = get_ag_indicator_index_for_name(name); 2285 if (indicator_index < 0) return; 2286 hfp_ag_indicators[indicator_index].status = value; 2287 2288 2289 btstack_linked_list_iterator_t it; 2290 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 2291 while (btstack_linked_list_iterator_has_next(&it)){ 2292 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 2293 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 2294 if (! hfp_connection->ag_indicators[indicator_index].enabled) { 2295 log_info("AG indicator '%s' changed to %u but not enabled", hfp_ag_indicators[indicator_index].name, value); 2296 continue; 2297 } 2298 log_info("AG indicator '%s' changed to %u, request transfer statur", hfp_ag_indicators[indicator_index].name, value); 2299 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 2300 hfp_ag_run_for_context(hfp_connection); 2301 } 2302 } 2303 2304 void hfp_ag_set_registration_status(int status){ 2305 hfp_ag_set_ag_indicator("service", status); 2306 } 2307 2308 void hfp_ag_set_signal_strength(int strength){ 2309 hfp_ag_set_ag_indicator("signal", strength); 2310 } 2311 2312 void hfp_ag_set_roaming_status(int status){ 2313 hfp_ag_set_ag_indicator("roam", status); 2314 } 2315 2316 void hfp_ag_set_battery_level(int level){ 2317 hfp_ag_set_ag_indicator("battchg", level); 2318 } 2319 2320 void hfp_ag_activate_voice_recognition(hci_con_handle_t acl_handle, int activate){ 2321 if (!get_bit(hfp_supported_features, HFP_AGSF_VOICE_RECOGNITION_FUNCTION)) return; 2322 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2323 if (!hfp_connection){ 2324 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2325 return; 2326 } 2327 2328 if (!get_bit(hfp_connection->remote_supported_features, HFP_HFSF_VOICE_RECOGNITION_FUNCTION)) { 2329 log_info("AG cannot acivate voice recognition - not supported by HF"); 2330 return; 2331 } 2332 2333 if (activate){ 2334 hfp_ag_establish_audio_connection(acl_handle); 2335 } 2336 2337 hfp_connection->ag_activate_voice_recognition = activate; 2338 hfp_connection->command = HFP_CMD_AG_ACTIVATE_VOICE_RECOGNITION; 2339 hfp_ag_run_for_context(hfp_connection); 2340 } 2341 2342 void hfp_ag_set_microphone_gain(hci_con_handle_t acl_handle, int gain){ 2343 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2344 if (!hfp_connection){ 2345 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2346 return; 2347 } 2348 if (hfp_connection->microphone_gain != gain){ 2349 hfp_connection->command = HFP_CMD_SET_MICROPHONE_GAIN; 2350 hfp_connection->microphone_gain = gain; 2351 hfp_connection->send_microphone_gain = 1; 2352 } 2353 hfp_ag_run_for_context(hfp_connection); 2354 } 2355 2356 void hfp_ag_set_speaker_gain(hci_con_handle_t acl_handle, int gain){ 2357 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2358 if (!hfp_connection){ 2359 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2360 return; 2361 } 2362 if (hfp_connection->speaker_gain != gain){ 2363 hfp_connection->speaker_gain = gain; 2364 hfp_connection->send_speaker_gain = 1; 2365 } 2366 hfp_ag_run_for_context(hfp_connection); 2367 } 2368 2369 void hfp_ag_send_phone_number_for_voice_tag(hci_con_handle_t acl_handle, const char * number){ 2370 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2371 if (!hfp_connection){ 2372 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2373 return; 2374 } 2375 hfp_ag_set_clip(0, number); 2376 hfp_connection->send_phone_number_for_voice_tag = 1; 2377 } 2378 2379 void hfp_ag_reject_phone_number_for_voice_tag(hci_con_handle_t acl_handle){ 2380 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2381 if (!hfp_connection){ 2382 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2383 return; 2384 } 2385 hfp_connection->send_error = 1; 2386 } 2387 2388 void hfp_ag_send_dtmf_code_done(hci_con_handle_t acl_handle){ 2389 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2390 if (!hfp_connection){ 2391 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2392 return; 2393 } 2394 hfp_connection->ok_pending = 1; 2395 } 2396 2397 void hfp_ag_set_subcriber_number_information(hfp_phone_number_t * numbers, int numbers_count){ 2398 subscriber_numbers = numbers; 2399 subscriber_numbers_count = numbers_count; 2400 } 2401 2402 void hfp_ag_clear_last_dialed_number(void){ 2403 hfp_gsm_clear_last_dialed_number(); 2404 } 2405 2406 void hfp_ag_notify_incoming_call_waiting(hci_con_handle_t acl_handle){ 2407 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2408 if (!hfp_connection){ 2409 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2410 return; 2411 } 2412 if (!hfp_connection->call_waiting_notification_enabled) return; 2413 2414 hfp_connection->ag_notify_incoming_call_waiting = 1; 2415 hfp_ag_run_for_context(hfp_connection); 2416 } 2417 2418