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