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 hfp_connection->ok_pending = 1; 941 942 if (use_in_band_tone()){ 943 hfp_connection->call_state = HFP_CALL_ACTIVE; 944 } else { 945 hfp_connection->call_state = HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE; 946 hfp_ag_establish_audio_connection(hfp_connection->acl_handle); 947 } 948 949 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 950 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 951 952 } else { 953 hfp_connection->call_state = HFP_CALL_IDLE; 954 } 955 hfp_ag_run_for_context(hfp_connection); 956 } 957 } 958 959 static void hfp_ag_ag_accept_call(void){ 960 961 int call_indicator_index = get_ag_indicator_index_for_name("call"); 962 int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup"); 963 964 btstack_linked_list_iterator_t it; 965 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 966 while (btstack_linked_list_iterator_has_next(&it)){ 967 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 968 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 969 if (hfp_connection->call_state != HFP_CALL_RINGING) continue; 970 971 hfp_ag_hf_stop_ringing(hfp_connection); 972 hfp_connection->call_state = HFP_CALL_TRIGGER_AUDIO_CONNECTION; 973 974 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 975 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 976 977 hfp_ag_run_for_context(hfp_connection); 978 break; // only single 979 } 980 } 981 982 static void hfp_ag_trigger_reject_call(void){ 983 int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup"); 984 btstack_linked_list_iterator_t it; 985 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 986 while (btstack_linked_list_iterator_has_next(&it)){ 987 hfp_connection_t * connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 988 if (connection->local_role != HFP_ROLE_AG) continue; 989 if (connection->call_state != HFP_CALL_RINGING && 990 connection->call_state != HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING) continue; 991 hfp_ag_hf_stop_ringing(connection); 992 connection->ag_indicators_status_update_bitmap = store_bit(connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 993 connection->call_state = HFP_CALL_IDLE; 994 hfp_ag_run_for_context(connection); 995 } 996 } 997 998 static void hfp_ag_emit_simple_event(uint8_t event_subtype){ 999 uint8_t event[3]; 1000 event[0] = HCI_EVENT_HFP_META; 1001 event[1] = sizeof(event) - 2; 1002 event[2] = event_subtype; 1003 if (!hfp_ag_callback) return; 1004 (*hfp_ag_callback)(HCI_EVENT_PACKET, 0, event, sizeof(event)); 1005 } 1006 1007 static void hfp_ag_trigger_terminate_call(void){ 1008 int call_indicator_index = get_ag_indicator_index_for_name("call"); 1009 1010 btstack_linked_list_iterator_t it; 1011 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1012 while (btstack_linked_list_iterator_has_next(&it)){ 1013 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1014 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1015 hfp_ag_establish_service_level_connection(hfp_connection->remote_addr); 1016 if (hfp_connection->call_state == HFP_CALL_IDLE) continue; 1017 hfp_connection->call_state = HFP_CALL_IDLE; 1018 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 1019 hfp_connection->release_audio_connection = 1; 1020 hfp_ag_run_for_context(hfp_connection); 1021 } 1022 hfp_ag_emit_simple_event(HFP_SUBEVENT_CALL_TERMINATED); 1023 } 1024 1025 static void hfp_ag_set_callsetup_indicator(void){ 1026 hfp_ag_indicator_t * indicator = get_ag_indicator_for_name("callsetup"); 1027 if (!indicator){ 1028 log_error("hfp_ag_set_callsetup_indicator: callsetup indicator is missing"); 1029 return; 1030 }; 1031 indicator->status = hfp_gsm_callsetup_status(); 1032 } 1033 1034 static void hfp_ag_set_callheld_indicator(void){ 1035 hfp_ag_indicator_t * indicator = get_ag_indicator_for_name("callheld"); 1036 if (!indicator){ 1037 log_error("hfp_ag_set_callheld_state: callheld indicator is missing"); 1038 return; 1039 }; 1040 indicator->status = hfp_gsm_callheld_status(); 1041 } 1042 1043 static void hfp_ag_set_call_indicator(void){ 1044 hfp_ag_indicator_t * indicator = get_ag_indicator_for_name("call"); 1045 if (!indicator){ 1046 log_error("hfp_ag_set_call_state: call indicator is missing"); 1047 return; 1048 }; 1049 indicator->status = hfp_gsm_call_status(); 1050 } 1051 1052 static void hfp_ag_stop_ringing(void){ 1053 btstack_linked_list_iterator_t it; 1054 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1055 while (btstack_linked_list_iterator_has_next(&it)){ 1056 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1057 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1058 if (hfp_connection->call_state != HFP_CALL_RINGING && 1059 hfp_connection->call_state != HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING) continue; 1060 hfp_ag_hf_stop_ringing(hfp_connection); 1061 } 1062 } 1063 1064 static hfp_connection_t * hfp_ag_connection_for_call_state(hfp_call_state_t call_state){ 1065 btstack_linked_list_iterator_t it; 1066 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1067 while (btstack_linked_list_iterator_has_next(&it)){ 1068 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1069 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1070 if (hfp_connection->call_state == call_state) return hfp_connection; 1071 } 1072 return NULL; 1073 } 1074 1075 static void hfp_ag_send_response_and_hold_state(hfp_response_and_hold_state_t state){ 1076 btstack_linked_list_iterator_t it; 1077 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 1078 while (btstack_linked_list_iterator_has_next(&it)){ 1079 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 1080 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 1081 hfp_connection->send_response_and_hold_status = state + 1; 1082 } 1083 } 1084 1085 static int call_setup_state_machine(hfp_connection_t * hfp_connection){ 1086 int indicator_index; 1087 switch (hfp_connection->call_state){ 1088 case HFP_CALL_W4_AUDIO_CONNECTION_FOR_IN_BAND_RING: 1089 if (hfp_connection->state != HFP_AUDIO_CONNECTION_ESTABLISHED) return 0; 1090 // we got event: audio hfp_connection established 1091 hfp_timeout_start(hfp_connection); 1092 hfp_connection->ag_ring = 1; 1093 hfp_connection->ag_send_clip = hfp_gsm_clip_type() && hfp_connection->clip_enabled; 1094 hfp_connection->call_state = HFP_CALL_RINGING; 1095 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_START_RINGINIG); 1096 break; 1097 case HFP_CALL_W4_AUDIO_CONNECTION_FOR_ACTIVE: 1098 if (hfp_connection->state != HFP_AUDIO_CONNECTION_ESTABLISHED) return 0; 1099 // we got event: audio hfp_connection established 1100 hfp_connection->call_state = HFP_CALL_ACTIVE; 1101 break; 1102 case HFP_CALL_W2_SEND_CALL_WAITING: 1103 hfp_connection->call_state = HFP_CALL_W4_CHLD; 1104 hfp_ag_send_call_waiting_notification(hfp_connection->rfcomm_cid); 1105 indicator_index = get_ag_indicator_index_for_name("callsetup"); 1106 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 1107 break; 1108 default: 1109 break; 1110 } 1111 return 0; 1112 } 1113 // hfp_connection is used to identify originating HF 1114 static void hfp_ag_call_sm(hfp_ag_call_event_t event, hfp_connection_t * hfp_connection){ 1115 int indicator_index; 1116 int callsetup_indicator_index = get_ag_indicator_index_for_name("callsetup"); 1117 int callheld_indicator_index = get_ag_indicator_index_for_name("callheld"); 1118 int call_indicator_index = get_ag_indicator_index_for_name("call"); 1119 1120 //printf("hfp_ag_call_sm event %d \n", event); 1121 switch (event){ 1122 case HFP_AG_INCOMING_CALL: 1123 switch (hfp_gsm_call_status()){ 1124 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1125 switch (hfp_gsm_callsetup_status()){ 1126 case HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS: 1127 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL); 1128 hfp_ag_set_callsetup_indicator(); 1129 hfp_ag_trigger_incoming_call(); 1130 log_info("AG rings"); 1131 break; 1132 default: 1133 break; 1134 } 1135 break; 1136 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1137 switch (hfp_gsm_callsetup_status()){ 1138 case HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS: 1139 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL); 1140 hfp_ag_set_callsetup_indicator(); 1141 hfp_ag_trigger_incoming_call(); 1142 log_info("AG call waiting"); 1143 break; 1144 default: 1145 break; 1146 } 1147 break; 1148 } 1149 break; 1150 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG: 1151 switch (hfp_gsm_call_status()){ 1152 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1153 switch (hfp_gsm_callsetup_status()){ 1154 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1155 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG); 1156 hfp_ag_set_call_indicator(); 1157 hfp_ag_set_callsetup_indicator(); 1158 hfp_ag_ag_accept_call(); 1159 log_info("AG answers call, accept call by GSM"); 1160 break; 1161 default: 1162 break; 1163 } 1164 break; 1165 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1166 switch (hfp_gsm_callsetup_status()){ 1167 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1168 log_info("AG: current call is placed on hold, incoming call gets active"); 1169 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG); 1170 hfp_ag_set_callsetup_indicator(); 1171 hfp_ag_set_callheld_indicator(); 1172 hfp_ag_transfer_callsetup_state(); 1173 hfp_ag_transfer_callheld_state(); 1174 break; 1175 default: 1176 break; 1177 } 1178 break; 1179 } 1180 break; 1181 1182 case HFP_AG_HELD_CALL_JOINED_BY_AG: 1183 switch (hfp_gsm_call_status()){ 1184 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1185 switch (hfp_gsm_callheld_status()){ 1186 case HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED: 1187 log_info("AG: joining held call with active call"); 1188 hfp_gsm_handle_event(HFP_AG_HELD_CALL_JOINED_BY_AG); 1189 hfp_ag_set_callheld_indicator(); 1190 hfp_ag_transfer_callheld_state(); 1191 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CONFERENCE_CALL); 1192 break; 1193 default: 1194 break; 1195 } 1196 break; 1197 default: 1198 break; 1199 } 1200 break; 1201 1202 case HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF: 1203 switch (hfp_gsm_call_status()){ 1204 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1205 switch (hfp_gsm_callsetup_status()){ 1206 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1207 hfp_gsm_handle_event(HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF); 1208 hfp_ag_set_callsetup_indicator(); 1209 hfp_ag_set_call_indicator(); 1210 hfp_ag_hf_accept_call(hfp_connection); 1211 log_info("HF answers call, accept call by GSM"); 1212 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CALL_ANSWERED); 1213 break; 1214 default: 1215 break; 1216 } 1217 break; 1218 default: 1219 break; 1220 } 1221 break; 1222 1223 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG: 1224 switch (hfp_gsm_call_status()){ 1225 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1226 switch (hfp_gsm_callsetup_status()){ 1227 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1228 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG); 1229 hfp_ag_response_and_hold_active = 1; 1230 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD; 1231 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1232 // as with regualr call 1233 hfp_ag_set_call_indicator(); 1234 hfp_ag_set_callsetup_indicator(); 1235 hfp_ag_ag_accept_call(); 1236 log_info("AG response and hold - hold by AG"); 1237 break; 1238 default: 1239 break; 1240 } 1241 break; 1242 default: 1243 break; 1244 } 1245 break; 1246 1247 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF: 1248 switch (hfp_gsm_call_status()){ 1249 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1250 switch (hfp_gsm_callsetup_status()){ 1251 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1252 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF); 1253 hfp_ag_response_and_hold_active = 1; 1254 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD; 1255 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1256 // as with regualr call 1257 hfp_ag_set_call_indicator(); 1258 hfp_ag_set_callsetup_indicator(); 1259 hfp_ag_hf_accept_call(hfp_connection); 1260 log_info("AG response and hold - hold by HF"); 1261 break; 1262 default: 1263 break; 1264 } 1265 break; 1266 default: 1267 break; 1268 } 1269 break; 1270 1271 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG: 1272 case HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF: 1273 if (!hfp_ag_response_and_hold_active) break; 1274 if (hfp_ag_response_and_hold_state != HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD) break; 1275 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG); 1276 hfp_ag_response_and_hold_active = 0; 1277 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_HELD_INCOMING_ACCEPTED; 1278 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1279 log_info("Held Call accepted and active"); 1280 break; 1281 1282 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG: 1283 case HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF: 1284 if (!hfp_ag_response_and_hold_active) break; 1285 if (hfp_ag_response_and_hold_state != HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD) break; 1286 hfp_gsm_handle_event(HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG); 1287 hfp_ag_response_and_hold_active = 0; 1288 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED; 1289 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1290 // from terminate by ag 1291 hfp_ag_set_call_indicator(); 1292 hfp_ag_trigger_terminate_call(); 1293 break; 1294 1295 case HFP_AG_TERMINATE_CALL_BY_HF: 1296 switch (hfp_gsm_call_status()){ 1297 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1298 switch (hfp_gsm_callsetup_status()){ 1299 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1300 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_HF); 1301 hfp_ag_set_callsetup_indicator(); 1302 hfp_ag_transfer_callsetup_state(); 1303 hfp_ag_trigger_reject_call(); 1304 log_info("HF Rejected Incoming call, AG terminate call"); 1305 break; 1306 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE: 1307 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE: 1308 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_HF); 1309 hfp_ag_set_callsetup_indicator(); 1310 hfp_ag_transfer_callsetup_state(); 1311 log_info("AG terminate outgoing call process"); 1312 break; 1313 default: 1314 break; 1315 } 1316 break; 1317 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1318 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_HF); 1319 hfp_ag_set_call_indicator(); 1320 hfp_ag_transfer_call_state(); 1321 hfp_connection->call_state = HFP_CALL_IDLE; 1322 log_info("AG terminate call"); 1323 break; 1324 } 1325 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CALL_TERMINATED); 1326 break; 1327 1328 case HFP_AG_TERMINATE_CALL_BY_AG: 1329 switch (hfp_gsm_call_status()){ 1330 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1331 switch (hfp_gsm_callsetup_status()){ 1332 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1333 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_AG); 1334 hfp_ag_set_callsetup_indicator(); 1335 hfp_ag_trigger_reject_call(); 1336 log_info("AG Rejected Incoming call, AG terminate call"); 1337 break; 1338 default: 1339 break; 1340 } 1341 break; 1342 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1343 hfp_gsm_handle_event(HFP_AG_TERMINATE_CALL_BY_AG); 1344 hfp_ag_set_callsetup_indicator(); 1345 hfp_ag_set_call_indicator(); 1346 hfp_ag_trigger_terminate_call(); 1347 log_info("AG terminate call"); 1348 break; 1349 default: 1350 break; 1351 } 1352 break; 1353 case HFP_AG_CALL_DROPPED: 1354 switch (hfp_gsm_call_status()){ 1355 case HFP_CALL_STATUS_NO_HELD_OR_ACTIVE_CALLS: 1356 switch (hfp_gsm_callsetup_status()){ 1357 case HFP_CALLSETUP_STATUS_INCOMING_CALL_SETUP_IN_PROGRESS: 1358 hfp_ag_stop_ringing(); 1359 log_info("Incoming call interrupted"); 1360 break; 1361 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_DIALING_STATE: 1362 case HFP_CALLSETUP_STATUS_OUTGOING_CALL_SETUP_IN_ALERTING_STATE: 1363 log_info("Outgoing call interrupted\n"); 1364 log_info("AG notify call dropped\n"); 1365 break; 1366 default: 1367 break; 1368 } 1369 hfp_gsm_handle_event(HFP_AG_CALL_DROPPED); 1370 hfp_ag_set_callsetup_indicator(); 1371 hfp_ag_transfer_callsetup_state(); 1372 break; 1373 case HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT: 1374 if (hfp_ag_response_and_hold_active) { 1375 hfp_gsm_handle_event(HFP_AG_CALL_DROPPED); 1376 hfp_ag_response_and_hold_state = HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED; 1377 hfp_ag_send_response_and_hold_state(hfp_ag_response_and_hold_state); 1378 } 1379 hfp_gsm_handle_event(HFP_AG_CALL_DROPPED); 1380 hfp_ag_set_callsetup_indicator(); 1381 hfp_ag_set_call_indicator(); 1382 hfp_ag_trigger_terminate_call(); 1383 log_info("AG notify call dropped"); 1384 break; 1385 default: 1386 break; 1387 } 1388 break; 1389 1390 case HFP_AG_OUTGOING_CALL_INITIATED: 1391 // directly reject call if number of free slots is exceeded 1392 if (!hfp_gsm_call_possible()){ 1393 hfp_connection->send_error = 1; 1394 hfp_ag_run_for_context(hfp_connection); 1395 break; 1396 } 1397 hfp_gsm_handle_event_with_call_number(HFP_AG_OUTGOING_CALL_INITIATED, (const char *) &hfp_connection->line_buffer[3]); 1398 1399 hfp_connection->call_state = HFP_CALL_OUTGOING_INITIATED; 1400 1401 hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER, (const char *) &hfp_connection->line_buffer[3]); 1402 break; 1403 1404 case HFP_AG_OUTGOING_REDIAL_INITIATED:{ 1405 // directly reject call if number of free slots is exceeded 1406 if (!hfp_gsm_call_possible()){ 1407 hfp_connection->send_error = 1; 1408 hfp_ag_run_for_context(hfp_connection); 1409 break; 1410 } 1411 1412 hfp_gsm_handle_event(HFP_AG_OUTGOING_REDIAL_INITIATED); 1413 hfp_connection->call_state = HFP_CALL_OUTGOING_INITIATED; 1414 1415 log_info("Redial last number"); 1416 char * last_dialed_number = hfp_gsm_last_dialed_number(); 1417 1418 if (strlen(last_dialed_number) > 0){ 1419 log_info("Last number exists: accept call"); 1420 hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_PLACE_CALL_WITH_NUMBER, last_dialed_number); 1421 } else { 1422 log_info("log_infoLast number missing: reject call"); 1423 hfp_ag_outgoing_call_rejected(); 1424 } 1425 break; 1426 } 1427 case HFP_AG_OUTGOING_CALL_REJECTED: 1428 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_INITIATED); 1429 if (!hfp_connection){ 1430 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection in initiated state"); 1431 break; 1432 } 1433 1434 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_REJECTED); 1435 hfp_connection->call_state = HFP_CALL_IDLE; 1436 hfp_connection->send_error = 1; 1437 hfp_ag_run_for_context(hfp_connection); 1438 break; 1439 1440 case HFP_AG_OUTGOING_CALL_ACCEPTED:{ 1441 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_INITIATED); 1442 if (!hfp_connection){ 1443 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection in initiated state"); 1444 break; 1445 } 1446 1447 hfp_connection->ok_pending = 1; 1448 hfp_connection->call_state = HFP_CALL_OUTGOING_DIALING; 1449 1450 // trigger callsetup to be 1451 int put_call_on_hold = hfp_gsm_call_status() == HFP_CALL_STATUS_ACTIVE_OR_HELD_CALL_IS_PRESENT; 1452 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_ACCEPTED); 1453 1454 hfp_ag_set_callsetup_indicator(); 1455 indicator_index = get_ag_indicator_index_for_name("callsetup"); 1456 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 1457 1458 // put current call on hold if active 1459 if (put_call_on_hold){ 1460 log_info("AG putting current call on hold for new outgoing calllog_info"); 1461 hfp_ag_set_callheld_indicator(); 1462 indicator_index = get_ag_indicator_index_for_name("callheld"); 1463 hfp_ag_send_transfer_ag_indicators_status_cmd(hfp_connection->rfcomm_cid, &hfp_ag_indicators[indicator_index]); 1464 } 1465 1466 // start audio if needed 1467 hfp_ag_establish_audio_connection(hfp_connection->acl_handle); 1468 break; 1469 } 1470 case HFP_AG_OUTGOING_CALL_RINGING: 1471 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_DIALING); 1472 if (!hfp_connection){ 1473 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection in dialing state"); 1474 break; 1475 } 1476 1477 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_RINGING); 1478 hfp_connection->call_state = HFP_CALL_OUTGOING_RINGING; 1479 hfp_ag_set_callsetup_indicator(); 1480 hfp_ag_transfer_callsetup_state(); 1481 break; 1482 1483 case HFP_AG_OUTGOING_CALL_ESTABLISHED:{ 1484 // get outgoing call 1485 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_RINGING); 1486 if (!hfp_connection){ 1487 hfp_connection = hfp_ag_connection_for_call_state(HFP_CALL_OUTGOING_DIALING); 1488 } 1489 if (!hfp_connection){ 1490 log_info("hfp_ag_call_sm: did not find outgoing hfp_connection"); 1491 break; 1492 } 1493 1494 int CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS = hfp_gsm_callheld_status() == HFP_CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS; 1495 hfp_gsm_handle_event(HFP_AG_OUTGOING_CALL_ESTABLISHED); 1496 hfp_connection->call_state = HFP_CALL_ACTIVE; 1497 hfp_ag_set_callsetup_indicator(); 1498 hfp_ag_set_call_indicator(); 1499 hfp_ag_transfer_call_state(); 1500 hfp_ag_transfer_callsetup_state(); 1501 if (CALLHELD_STATUS_CALL_ON_HOLD_AND_NO_ACTIVE_CALLS){ 1502 hfp_ag_set_callheld_indicator(); 1503 hfp_ag_transfer_callheld_state(); 1504 } 1505 break; 1506 } 1507 1508 case HFP_AG_CALL_HOLD_USER_BUSY: 1509 hfp_gsm_handle_event(HFP_AG_CALL_HOLD_USER_BUSY); 1510 hfp_ag_set_callsetup_indicator(); 1511 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 1512 hfp_connection->call_state = HFP_CALL_ACTIVE; 1513 log_info("AG: Call Waiting, User Busy"); 1514 break; 1515 1516 case HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL:{ 1517 int call_setup_in_progress = hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS; 1518 int call_held = hfp_gsm_callheld_status() != HFP_CALLHELD_STATUS_NO_CALLS_HELD; 1519 1520 // Releases all active calls (if any exist) and accepts the other (held or waiting) call. 1521 if (call_held || call_setup_in_progress){ 1522 hfp_gsm_handle_event_with_call_index(HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection->call_index); 1523 1524 } 1525 1526 if (call_setup_in_progress){ 1527 log_info("AG: Call Dropped, Accept new call"); 1528 hfp_ag_set_callsetup_indicator(); 1529 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 1530 } else { 1531 log_info("AG: Call Dropped, Resume held call"); 1532 } 1533 if (call_held){ 1534 hfp_ag_set_callheld_indicator(); 1535 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1536 } 1537 1538 hfp_connection->call_state = HFP_CALL_ACTIVE; 1539 break; 1540 } 1541 1542 case HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL:{ 1543 // Places all active calls (if any exist) on hold and accepts the other (held or waiting) call. 1544 // only update if callsetup changed 1545 int call_setup_in_progress = hfp_gsm_callsetup_status() != HFP_CALLSETUP_STATUS_NO_CALL_SETUP_IN_PROGRESS; 1546 hfp_gsm_handle_event_with_call_index(HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection->call_index); 1547 1548 if (call_setup_in_progress){ 1549 log_info("AG: Call on Hold, Accept new call"); 1550 hfp_ag_set_callsetup_indicator(); 1551 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callsetup_indicator_index, 1); 1552 } else { 1553 log_info("AG: Swap calls"); 1554 } 1555 1556 hfp_ag_set_callheld_indicator(); 1557 // hfp_ag_set_callheld_state(HFP_CALLHELD_STATUS_CALL_ON_HOLD_OR_SWAPPED); 1558 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1559 hfp_connection->call_state = HFP_CALL_ACTIVE; 1560 break; 1561 } 1562 1563 case HFP_AG_CALL_HOLD_ADD_HELD_CALL: 1564 // Adds a held call to the conversation. 1565 if (hfp_gsm_callheld_status() != HFP_CALLHELD_STATUS_NO_CALLS_HELD){ 1566 log_info("AG: Join 3-way-call"); 1567 hfp_gsm_handle_event(HFP_AG_CALL_HOLD_ADD_HELD_CALL); 1568 hfp_ag_set_callheld_indicator(); 1569 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1570 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_CONFERENCE_CALL); 1571 } 1572 hfp_connection->call_state = HFP_CALL_ACTIVE; 1573 break; 1574 case HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS: 1575 // Connects the two calls and disconnects the subscriber from both calls (Explicit Call Transfer) 1576 hfp_gsm_handle_event(HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS); 1577 log_info("AG: Transfer call -> Connect two calls and disconnect"); 1578 hfp_ag_set_call_indicator(); 1579 hfp_ag_set_callheld_indicator(); 1580 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, call_indicator_index, 1); 1581 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, callheld_indicator_index, 1); 1582 hfp_connection->call_state = HFP_CALL_IDLE; 1583 break; 1584 1585 default: 1586 break; 1587 } 1588 1589 1590 } 1591 1592 1593 static void hfp_ag_send_call_status(hfp_connection_t * hfp_connection, int call_index){ 1594 hfp_gsm_call_t * active_call = hfp_gsm_call(call_index); 1595 if (!active_call) return; 1596 1597 int idx = active_call->index; 1598 hfp_enhanced_call_dir_t dir = active_call->direction; 1599 hfp_enhanced_call_status_t status = active_call->enhanced_status; 1600 hfp_enhanced_call_mode_t mode = active_call->mode; 1601 hfp_enhanced_call_mpty_t mpty = active_call->mpty; 1602 uint8_t type = active_call->clip_type; 1603 char * number = active_call->clip_number; 1604 1605 char buffer[100]; 1606 // TODO: check length of a buffer, to fit the MTU 1607 int offset = snprintf(buffer, sizeof(buffer), "\r\n%s: %d,%d,%d,%d,%d", HFP_LIST_CURRENT_CALLS, idx, dir, status, mode, mpty); 1608 if (number){ 1609 offset += snprintf(buffer+offset, sizeof(buffer)-offset-3, ", \"%s\",%u", number, type); 1610 } 1611 snprintf(buffer+offset, sizeof(buffer)-offset, "\r\n"); 1612 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, 1613 mode, mpty, type, number); 1614 send_str_over_rfcomm(hfp_connection->rfcomm_cid, buffer); 1615 } 1616 1617 1618 // sends pending command, returns if command was sent 1619 static int hfp_ag_send_commands(hfp_connection_t *hfp_connection){ 1620 1621 if (hfp_connection->send_status_of_current_calls){ 1622 hfp_connection->ok_pending = 0; 1623 if (hfp_connection->next_call_index < hfp_gsm_get_number_of_calls()){ 1624 hfp_connection->next_call_index++; 1625 hfp_ag_send_call_status(hfp_connection, hfp_connection->next_call_index); 1626 return 1; 1627 } else { 1628 // 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 1629 hfp_connection->next_call_index = 0; 1630 hfp_connection->ok_pending = 1; 1631 hfp_connection->send_status_of_current_calls = 0; 1632 } 1633 } 1634 1635 if (hfp_connection->ag_notify_incoming_call_waiting){ 1636 hfp_connection->ag_notify_incoming_call_waiting = 0; 1637 hfp_ag_send_call_waiting_notification(hfp_connection->rfcomm_cid); 1638 return 1; 1639 } 1640 1641 if (hfp_connection->command == HFP_CMD_UNKNOWN){ 1642 hfp_connection->ok_pending = 0; 1643 hfp_connection->send_error = 0; 1644 hfp_connection->command = HFP_CMD_NONE; 1645 hfp_ag_send_error(hfp_connection->rfcomm_cid); 1646 return 1; 1647 } 1648 1649 if (hfp_connection->send_error){ 1650 hfp_connection->send_error = 0; 1651 hfp_connection->command = HFP_CMD_NONE; 1652 hfp_ag_send_error(hfp_connection->rfcomm_cid); 1653 return 1; 1654 } 1655 1656 // note: before update AG indicators and ok_pending 1657 if (hfp_connection->send_response_and_hold_status){ 1658 int status = hfp_connection->send_response_and_hold_status - 1; 1659 hfp_connection->send_response_and_hold_status = 0; 1660 hfp_ag_send_set_response_and_hold(hfp_connection->rfcomm_cid, status); 1661 return 1; 1662 } 1663 1664 if (hfp_connection->ok_pending){ 1665 hfp_connection->ok_pending = 0; 1666 hfp_connection->command = HFP_CMD_NONE; 1667 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 1668 return 1; 1669 } 1670 1671 // update AG indicators 1672 if (hfp_connection->ag_indicators_status_update_bitmap){ 1673 int i; 1674 for (i=0;i<hfp_connection->ag_indicators_nr;i++){ 1675 if (get_bit(hfp_connection->ag_indicators_status_update_bitmap, i)){ 1676 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, i, 0); 1677 if (!hfp_connection->enable_status_update_for_ag_indicators) { 1678 log_info("+CMER:3,0,0,0 - not sending update for '%s'", hfp_ag_indicators[i].name); 1679 break; 1680 } 1681 hfp_ag_send_transfer_ag_indicators_status_cmd(hfp_connection->rfcomm_cid, &hfp_ag_indicators[i]); 1682 return 1; 1683 } 1684 } 1685 } 1686 1687 if (hfp_connection->ag_ring){ 1688 hfp_connection->ag_ring = 0; 1689 hfp_connection->command = HFP_CMD_NONE; 1690 hfp_ag_send_ring(hfp_connection->rfcomm_cid); 1691 return 1; 1692 } 1693 1694 if (hfp_connection->ag_send_clip){ 1695 hfp_connection->ag_send_clip = 0; 1696 hfp_connection->command = HFP_CMD_NONE; 1697 hfp_ag_send_clip(hfp_connection->rfcomm_cid); 1698 return 1; 1699 } 1700 1701 if (hfp_connection->send_phone_number_for_voice_tag){ 1702 hfp_connection->send_phone_number_for_voice_tag = 0; 1703 hfp_connection->command = HFP_CMD_NONE; 1704 hfp_connection->ok_pending = 1; 1705 hfp_ag_send_phone_number_for_voice_tag_cmd(hfp_connection->rfcomm_cid); 1706 return 1; 1707 } 1708 1709 if (hfp_connection->send_subscriber_number){ 1710 if (hfp_connection->next_subscriber_number_to_send < subscriber_numbers_count){ 1711 hfp_phone_number_t phone = subscriber_numbers[hfp_connection->next_subscriber_number_to_send++]; 1712 hfp_send_subscriber_number_cmd(hfp_connection->rfcomm_cid, phone.type, phone.number); 1713 } else { 1714 hfp_connection->send_subscriber_number = 0; 1715 hfp_connection->next_subscriber_number_to_send = 0; 1716 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 1717 } 1718 hfp_connection->command = HFP_CMD_NONE; 1719 return 1; 1720 } 1721 1722 if (hfp_connection->send_microphone_gain){ 1723 hfp_connection->send_microphone_gain = 0; 1724 hfp_connection->command = HFP_CMD_NONE; 1725 hfp_ag_send_set_microphone_gain_cmd(hfp_connection->rfcomm_cid, hfp_connection->microphone_gain); 1726 return 1; 1727 } 1728 1729 if (hfp_connection->send_speaker_gain){ 1730 hfp_connection->send_speaker_gain = 0; 1731 hfp_connection->command = HFP_CMD_NONE; 1732 hfp_ag_send_set_speaker_gain_cmd(hfp_connection->rfcomm_cid, hfp_connection->speaker_gain); 1733 return 1; 1734 } 1735 1736 if (hfp_connection->send_ag_status_indicators){ 1737 hfp_connection->send_ag_status_indicators = 0; 1738 hfp_ag_send_retrieve_indicators_status_cmd(hfp_connection->rfcomm_cid); 1739 return 1; 1740 } 1741 1742 return 0; 1743 } 1744 1745 static void hfp_ag_run_for_context(hfp_connection_t *hfp_connection){ 1746 1747 if (!hfp_connection) return; 1748 1749 if (!hfp_connection->rfcomm_cid) return; 1750 1751 if (hfp_connection->local_role != HFP_ROLE_AG) { 1752 log_info("HFP AG%p, wrong role %u", hfp_connection, hfp_connection->local_role); 1753 return; 1754 } 1755 1756 if (!rfcomm_can_send_packet_now(hfp_connection->rfcomm_cid)) { 1757 log_info("hfp_ag_run_for_context: request can send for 0x%02x", hfp_connection->rfcomm_cid); 1758 rfcomm_request_can_send_now_event(hfp_connection->rfcomm_cid); 1759 return; 1760 } 1761 1762 int cmd_sent = hfp_ag_send_commands(hfp_connection); 1763 1764 // trigger codec exchange if requested by app 1765 if (hfp_connection->trigger_codec_exchange){ 1766 log_info("trigger codec, command %u, codec state %u", hfp_connection->command, hfp_connection->codecs_state); 1767 } 1768 1769 if (hfp_connection->trigger_codec_exchange && hfp_connection->command == HFP_CMD_NONE){ 1770 switch (hfp_connection->codecs_state){ 1771 case HFP_CODECS_IDLE: 1772 case HFP_CODECS_RECEIVED_LIST: 1773 case HFP_CODECS_AG_RESEND_COMMON_CODEC: 1774 case HFP_CODECS_ERROR: 1775 hfp_connection->trigger_codec_exchange = 0; 1776 hfp_connection->command = HFP_CMD_AG_SEND_COMMON_CODEC; 1777 break; 1778 default: 1779 break; 1780 } 1781 } 1782 1783 if (!cmd_sent){ 1784 cmd_sent = hfp_ag_run_for_context_service_level_connection(hfp_connection); 1785 } 1786 1787 if (!cmd_sent){ 1788 cmd_sent = hfp_ag_run_for_context_service_level_connection_queries(hfp_connection); 1789 } 1790 1791 if (!cmd_sent){ 1792 cmd_sent = call_setup_state_machine(hfp_connection); 1793 } 1794 1795 if (!cmd_sent){ 1796 cmd_sent = hfp_ag_run_for_audio_connection(hfp_connection); 1797 } 1798 1799 if (hfp_connection->command == HFP_CMD_NONE && !cmd_sent){ 1800 // log_info("hfp_connection->command == HFP_CMD_NONE"); 1801 switch(hfp_connection->state){ 1802 case HFP_W2_DISCONNECT_RFCOMM: 1803 hfp_connection->state = HFP_W4_RFCOMM_DISCONNECTED; 1804 rfcomm_disconnect(hfp_connection->rfcomm_cid); 1805 break; 1806 default: 1807 break; 1808 } 1809 } 1810 1811 if (cmd_sent){ 1812 hfp_connection->command = HFP_CMD_NONE; 1813 rfcomm_request_can_send_now_event(hfp_connection->rfcomm_cid); 1814 } 1815 } 1816 1817 static hfp_generic_status_indicator_t *get_hf_indicator_by_number(int number){ 1818 int i; 1819 for (i=0;i< hfp_generic_status_indicators_nr;i++){ 1820 hfp_generic_status_indicator_t * indicator = &hfp_generic_status_indicators[i]; 1821 if (indicator->uuid == number){ 1822 return indicator; 1823 } 1824 } 1825 return NULL; 1826 } 1827 1828 static void hfp_ag_handle_rfcomm_data(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 1829 UNUSED(packet_type); // ok: only called with RFCOMM_DATA_PACKET 1830 1831 // assertion: size >= 1 as rfcomm.c does not deliver empty packets 1832 if (size < 1) return; 1833 1834 hfp_connection_t * hfp_connection = get_hfp_connection_context_for_rfcomm_cid(channel); 1835 if (!hfp_connection) return; 1836 1837 hfp_log_rfcomm_message("HFP_AG_RX", packet, size); 1838 1839 // process messages byte-wise 1840 int pos; 1841 for (pos = 0; pos < size ; pos++){ 1842 hfp_parse(hfp_connection, packet[pos], 0); 1843 } 1844 1845 int value; 1846 hfp_generic_status_indicator_t * indicator; 1847 switch(hfp_connection->command){ 1848 case HFP_CMD_RESPONSE_AND_HOLD_QUERY: 1849 if (hfp_ag_response_and_hold_active){ 1850 hfp_connection->send_response_and_hold_status = HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD + 1; 1851 } 1852 hfp_connection->ok_pending = 1; 1853 break; 1854 case HFP_CMD_RESPONSE_AND_HOLD_COMMAND: 1855 value = btstack_atoi((char *)&hfp_connection->line_buffer[0]); 1856 log_info("HF Response and Hold: %u", value); 1857 switch(value){ 1858 case HFP_RESPONSE_AND_HOLD_INCOMING_ON_HOLD: 1859 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_HF, hfp_connection); 1860 break; 1861 case HFP_RESPONSE_AND_HOLD_HELD_INCOMING_ACCEPTED: 1862 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_HF, hfp_connection); 1863 break; 1864 case HFP_RESPONSE_AND_HOLD_HELD_INCOMING_REJECTED: 1865 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_HF, hfp_connection); 1866 break; 1867 default: 1868 break; 1869 } 1870 hfp_connection->ok_pending = 1; 1871 break; 1872 case HFP_CMD_HF_INDICATOR_STATUS: 1873 hfp_connection->command = HFP_CMD_NONE; 1874 // find indicator by assigned number 1875 indicator = get_hf_indicator_by_number(hfp_connection->parser_indicator_index); 1876 if (!indicator){ 1877 hfp_connection->send_error = 1; 1878 break; 1879 } 1880 value = btstack_atoi((char *)&hfp_connection->line_buffer[0]); 1881 switch (indicator->uuid){ 1882 case 1: // enhanced security 1883 if (value > 1) { 1884 hfp_connection->send_error = 1; 1885 return; 1886 } 1887 log_info("HF Indicator 'enhanced security' set to %u", value); 1888 break; 1889 case 2: // battery level 1890 if (value > 100){ 1891 hfp_connection->send_error = 1; 1892 return; 1893 } 1894 log_info("HF Indicator 'battery' set to %u", value); 1895 break; 1896 default: 1897 log_info("HF Indicator unknown set to %u", value); 1898 break; 1899 } 1900 hfp_connection->ok_pending = 1; 1901 break; 1902 case HFP_CMD_RETRIEVE_AG_INDICATORS_STATUS: 1903 // expected by SLC state machine 1904 if (hfp_connection->state < HFP_SERVICE_LEVEL_CONNECTION_ESTABLISHED) break; 1905 hfp_connection->send_ag_indicators_segment = 0; 1906 hfp_connection->send_ag_status_indicators = 1; 1907 break; 1908 case HFP_CMD_LIST_CURRENT_CALLS: 1909 hfp_connection->command = HFP_CMD_NONE; 1910 hfp_connection->next_call_index = 0; 1911 hfp_connection->send_status_of_current_calls = 1; 1912 break; 1913 case HFP_CMD_GET_SUBSCRIBER_NUMBER_INFORMATION: 1914 if (subscriber_numbers_count == 0){ 1915 hfp_ag_send_ok(hfp_connection->rfcomm_cid); 1916 break; 1917 } 1918 hfp_connection->next_subscriber_number_to_send = 0; 1919 hfp_connection->send_subscriber_number = 1; 1920 break; 1921 case HFP_CMD_TRANSMIT_DTMF_CODES: 1922 hfp_connection->command = HFP_CMD_NONE; 1923 hfp_emit_string_event(hfp_connection, HFP_SUBEVENT_TRANSMIT_DTMF_CODES, (const char *) &hfp_connection->line_buffer[0]); 1924 break; 1925 case HFP_CMD_HF_REQUEST_PHONE_NUMBER: 1926 hfp_connection->command = HFP_CMD_NONE; 1927 hfp_emit_simple_event(hfp_connection, HFP_SUBEVENT_ATTACH_NUMBER_TO_VOICE_TAG); 1928 break; 1929 case HFP_CMD_TURN_OFF_EC_AND_NR: 1930 hfp_connection->command = HFP_CMD_NONE; 1931 if (get_bit(hfp_supported_features, HFP_AGSF_EC_NR_FUNCTION)){ 1932 hfp_connection->ok_pending = 1; 1933 hfp_supported_features = store_bit(hfp_supported_features, HFP_AGSF_EC_NR_FUNCTION, hfp_connection->ag_echo_and_noise_reduction); 1934 log_info("AG: EC/NR = %u", hfp_connection->ag_echo_and_noise_reduction); 1935 } else { 1936 hfp_connection->send_error = 1; 1937 } 1938 break; 1939 case HFP_CMD_CALL_ANSWERED: 1940 hfp_connection->command = HFP_CMD_NONE; 1941 log_info("HFP: ATA"); 1942 hfp_ag_call_sm(HFP_AG_INCOMING_CALL_ACCEPTED_BY_HF, hfp_connection); 1943 break; 1944 case HFP_CMD_HANG_UP_CALL: 1945 hfp_connection->command = HFP_CMD_NONE; 1946 hfp_connection->ok_pending = 1; 1947 hfp_ag_call_sm(HFP_AG_TERMINATE_CALL_BY_HF, hfp_connection); 1948 break; 1949 case HFP_CMD_CALL_HOLD: { 1950 // TODO: fully implement this 1951 log_error("HFP: unhandled call hold type %c", hfp_connection->line_buffer[0]); 1952 hfp_connection->command = HFP_CMD_NONE; 1953 hfp_connection->ok_pending = 1; 1954 hfp_connection->call_index = 0; 1955 1956 if (hfp_connection->line_buffer[1] != '\0'){ 1957 hfp_connection->call_index = btstack_atoi((char *)&hfp_connection->line_buffer[1]); 1958 } 1959 1960 switch (hfp_connection->line_buffer[0]){ 1961 case '0': 1962 // Releases all held calls or sets User Determined User Busy (UDUB) for a waiting call. 1963 hfp_ag_call_sm(HFP_AG_CALL_HOLD_USER_BUSY, hfp_connection); 1964 break; 1965 case '1': 1966 // Releases all active calls (if any exist) and accepts the other (held or waiting) call. 1967 // Where both a held and a waiting call exist, the above procedures shall apply to the 1968 // waiting call (i.e., not to the held call) in conflicting situation. 1969 hfp_ag_call_sm(HFP_AG_CALL_HOLD_RELEASE_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection); 1970 break; 1971 case '2': 1972 // Places all active calls (if any exist) on hold and accepts the other (held or waiting) call. 1973 // Where both a held and a waiting call exist, the above procedures shall apply to the 1974 // waiting call (i.e., not to the held call) in conflicting situation. 1975 hfp_ag_call_sm(HFP_AG_CALL_HOLD_PARK_ACTIVE_ACCEPT_HELD_OR_WAITING_CALL, hfp_connection); 1976 break; 1977 case '3': 1978 // Adds a held call to the conversation. 1979 hfp_ag_call_sm(HFP_AG_CALL_HOLD_ADD_HELD_CALL, hfp_connection); 1980 break; 1981 case '4': 1982 // Connects the two calls and disconnects the subscriber from both calls (Explicit Call Transfer). 1983 hfp_ag_call_sm(HFP_AG_CALL_HOLD_EXIT_AND_JOIN_CALLS, hfp_connection); 1984 break; 1985 default: 1986 break; 1987 } 1988 break; 1989 } 1990 case HFP_CMD_CALL_PHONE_NUMBER: 1991 hfp_connection->command = HFP_CMD_NONE; 1992 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_INITIATED, hfp_connection); 1993 break; 1994 case HFP_CMD_REDIAL_LAST_NUMBER: 1995 hfp_connection->command = HFP_CMD_NONE; 1996 hfp_ag_call_sm(HFP_AG_OUTGOING_REDIAL_INITIATED, hfp_connection); 1997 break; 1998 case HFP_CMD_ENABLE_CLIP: 1999 hfp_connection->command = HFP_CMD_NONE; 2000 hfp_connection->clip_enabled = hfp_connection->line_buffer[8] != '0'; 2001 log_info("hfp: clip set, now: %u", hfp_connection->clip_enabled); 2002 hfp_connection->ok_pending = 1; 2003 break; 2004 case HFP_CMD_ENABLE_CALL_WAITING_NOTIFICATION: 2005 hfp_connection->command = HFP_CMD_NONE; 2006 hfp_connection->call_waiting_notification_enabled = hfp_connection->line_buffer[8] != '0'; 2007 log_info("hfp: call waiting notification set, now: %u", hfp_connection->call_waiting_notification_enabled); 2008 hfp_connection->ok_pending = 1; 2009 break; 2010 case HFP_CMD_SET_SPEAKER_GAIN: 2011 hfp_connection->command = HFP_CMD_NONE; 2012 hfp_connection->ok_pending = 1; 2013 log_info("HF speaker gain = %u", hfp_connection->speaker_gain); 2014 break; 2015 case HFP_CMD_SET_MICROPHONE_GAIN: 2016 hfp_connection->command = HFP_CMD_NONE; 2017 hfp_connection->ok_pending = 1; 2018 log_info("HF microphone gain = %u", hfp_connection->microphone_gain); 2019 break; 2020 default: 2021 break; 2022 } 2023 } 2024 2025 static void hfp_run(void){ 2026 btstack_linked_list_iterator_t it; 2027 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 2028 while (btstack_linked_list_iterator_has_next(&it)){ 2029 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 2030 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 2031 hfp_ag_run_for_context(hfp_connection); 2032 } 2033 } 2034 2035 static void rfcomm_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 2036 switch (packet_type){ 2037 case RFCOMM_DATA_PACKET: 2038 hfp_ag_handle_rfcomm_data(packet_type, channel, packet, size); 2039 break; 2040 case HCI_EVENT_PACKET: 2041 if (packet[0] == RFCOMM_EVENT_CAN_SEND_NOW){ 2042 uint16_t rfcomm_cid = rfcomm_event_can_send_now_get_rfcomm_cid(packet); 2043 hfp_ag_run_for_context(get_hfp_connection_context_for_rfcomm_cid(rfcomm_cid)); 2044 return; 2045 } 2046 hfp_handle_rfcomm_event(packet_type, channel, packet, size, HFP_ROLE_AG); 2047 break; 2048 default: 2049 break; 2050 } 2051 2052 hfp_run(); 2053 } 2054 2055 static void hci_event_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 2056 hfp_handle_hci_event(packet_type, channel, packet, size, HFP_ROLE_AG); 2057 2058 // allow for sco established -> ring transition 2059 if (packet_type != HCI_EVENT_PACKET) return; 2060 if (hci_event_packet_get_type(packet) != HCI_EVENT_SYNCHRONOUS_CONNECTION_COMPLETE) return; 2061 hfp_run(); 2062 } 2063 2064 void hfp_ag_init_codecs(int codecs_nr, uint8_t * codecs){ 2065 if (codecs_nr > HFP_MAX_NUM_CODECS){ 2066 log_error("hfp_init: codecs_nr (%d) > HFP_MAX_NUM_CODECS (%d)", codecs_nr, HFP_MAX_NUM_CODECS); 2067 return; 2068 } 2069 int i; 2070 hfp_codecs_nr = codecs_nr; 2071 for (i=0; i < codecs_nr; i++){ 2072 hfp_codecs[i] = codecs[i]; 2073 } 2074 } 2075 2076 void hfp_ag_init_supported_features(uint32_t supported_features){ 2077 hfp_supported_features = supported_features; 2078 } 2079 2080 void hfp_ag_init_ag_indicators(int ag_indicators_nr, hfp_ag_indicator_t * ag_indicators){ 2081 hfp_ag_indicators_nr = ag_indicators_nr; 2082 memcpy(hfp_ag_indicators, ag_indicators, ag_indicators_nr * sizeof(hfp_ag_indicator_t)); 2083 } 2084 2085 void hfp_ag_init_hf_indicators(int hf_indicators_nr, hfp_generic_status_indicator_t * hf_indicators){ 2086 if (hf_indicators_nr > HFP_MAX_NUM_HF_INDICATORS) return; 2087 hfp_generic_status_indicators_nr = hf_indicators_nr; 2088 memcpy(hfp_generic_status_indicators, hf_indicators, hf_indicators_nr * sizeof(hfp_generic_status_indicator_t)); 2089 } 2090 2091 void hfp_ag_init_call_hold_services(int call_hold_services_nr, const char * call_hold_services[]){ 2092 hfp_ag_call_hold_services_nr = call_hold_services_nr; 2093 memcpy(hfp_ag_call_hold_services, call_hold_services, call_hold_services_nr * sizeof(char *)); 2094 } 2095 2096 2097 void hfp_ag_init(uint16_t rfcomm_channel_nr){ 2098 2099 hfp_init(); 2100 2101 hci_event_callback_registration.callback = &hci_event_packet_handler; 2102 hci_add_event_handler(&hci_event_callback_registration); 2103 2104 rfcomm_register_service(&rfcomm_packet_handler, rfcomm_channel_nr, 0xffff); 2105 2106 // used to set packet handler for outgoing rfcomm connections - could be handled by emitting an event to us 2107 hfp_set_ag_rfcomm_packet_handler(&rfcomm_packet_handler); 2108 2109 hfp_ag_response_and_hold_active = 0; 2110 subscriber_numbers = NULL; 2111 subscriber_numbers_count = 0; 2112 2113 hfp_gsm_init(); 2114 } 2115 2116 void hfp_ag_establish_service_level_connection(bd_addr_t bd_addr){ 2117 hfp_establish_service_level_connection(bd_addr, BLUETOOTH_SERVICE_CLASS_HANDSFREE, HFP_ROLE_AG); 2118 } 2119 2120 void hfp_ag_release_service_level_connection(hci_con_handle_t acl_handle){ 2121 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2122 if (!hfp_connection){ 2123 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2124 return; 2125 } 2126 hfp_release_service_level_connection(hfp_connection); 2127 hfp_ag_run_for_context(hfp_connection); 2128 } 2129 2130 void hfp_ag_report_extended_audio_gateway_error_result_code(hci_con_handle_t acl_handle, hfp_cme_error_t error){ 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_connection->extended_audio_gateway_error = 0; 2137 if (!hfp_connection->enable_extended_audio_gateway_error_report){ 2138 return; 2139 } 2140 hfp_connection->extended_audio_gateway_error = error; 2141 hfp_ag_run_for_context(hfp_connection); 2142 } 2143 2144 static void hfp_ag_setup_audio_connection(hfp_connection_t * hfp_connection){ 2145 log_info("hfp_ag_setup_audio_connection state %u", hfp_connection->state); 2146 if (hfp_connection->state == HFP_AUDIO_CONNECTION_ESTABLISHED) return; 2147 if (hfp_connection->state >= HFP_W2_DISCONNECT_SCO) return; 2148 2149 hfp_connection->establish_audio_connection = 1; 2150 if (!has_codec_negotiation_feature(hfp_connection)){ 2151 log_info("hfp_ag_establish_audio_connection - no codec negotiation feature, using CVSD"); 2152 hfp_connection->negotiated_codec = HFP_CODEC_CVSD; 2153 hfp_connection->codecs_state = HFP_CODECS_EXCHANGED; 2154 // now, pick link settings 2155 hfp_init_link_settings(hfp_connection, hfp_ag_esco_s4_supported(hfp_connection)); 2156 return; 2157 } 2158 2159 hfp_connection->trigger_codec_exchange = 1; 2160 } 2161 2162 void hfp_ag_establish_audio_connection(hci_con_handle_t acl_handle){ 2163 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2164 if (!hfp_connection){ 2165 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2166 return; 2167 } 2168 hfp_connection->trigger_codec_exchange = 0; 2169 hfp_connection->establish_audio_connection = 0; 2170 hfp_ag_setup_audio_connection(hfp_connection); 2171 hfp_ag_run_for_context(hfp_connection); 2172 } 2173 2174 void hfp_ag_release_audio_connection(hci_con_handle_t acl_handle){ 2175 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2176 if (!hfp_connection){ 2177 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2178 return; 2179 } 2180 hfp_release_audio_connection(hfp_connection); 2181 hfp_ag_run_for_context(hfp_connection); 2182 } 2183 2184 /** 2185 * @brief Enable in-band ring tone 2186 */ 2187 void hfp_ag_set_use_in_band_ring_tone(int use_in_band_ring_tone){ 2188 if (get_bit(hfp_supported_features, HFP_AGSF_IN_BAND_RING_TONE) == use_in_band_ring_tone){ 2189 return; 2190 } 2191 hfp_supported_features = store_bit(hfp_supported_features, HFP_AGSF_IN_BAND_RING_TONE, use_in_band_ring_tone); 2192 2193 btstack_linked_list_iterator_t it; 2194 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 2195 while (btstack_linked_list_iterator_has_next(&it)){ 2196 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 2197 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 2198 hfp_connection->command = HFP_CMD_CHANGE_IN_BAND_RING_TONE_SETTING; 2199 hfp_ag_run_for_context(hfp_connection); 2200 } 2201 } 2202 2203 /** 2204 * @brief Called from GSM 2205 */ 2206 void hfp_ag_incoming_call(void){ 2207 hfp_ag_call_sm(HFP_AG_INCOMING_CALL, NULL); 2208 } 2209 2210 /** 2211 * @brief number is stored. 2212 */ 2213 void hfp_ag_set_clip(uint8_t type, const char * number){ 2214 hfp_gsm_handle_event_with_clip(HFP_AG_SET_CLIP, type, number); 2215 } 2216 2217 void hfp_ag_call_dropped(void){ 2218 hfp_ag_call_sm(HFP_AG_CALL_DROPPED, NULL); 2219 } 2220 2221 // call from AG UI 2222 void hfp_ag_answer_incoming_call(void){ 2223 hfp_ag_call_sm(HFP_AG_INCOMING_CALL_ACCEPTED_BY_AG, NULL); 2224 } 2225 2226 void hfp_ag_join_held_call(void){ 2227 hfp_ag_call_sm(HFP_AG_HELD_CALL_JOINED_BY_AG, NULL); 2228 } 2229 2230 void hfp_ag_terminate_call(void){ 2231 hfp_ag_call_sm(HFP_AG_TERMINATE_CALL_BY_AG, NULL); 2232 } 2233 2234 void hfp_ag_outgoing_call_ringing(void){ 2235 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_RINGING, NULL); 2236 } 2237 2238 void hfp_ag_outgoing_call_established(void){ 2239 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_ESTABLISHED, NULL); 2240 } 2241 2242 void hfp_ag_outgoing_call_rejected(void){ 2243 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_REJECTED, NULL); 2244 } 2245 2246 void hfp_ag_outgoing_call_accepted(void){ 2247 hfp_ag_call_sm(HFP_AG_OUTGOING_CALL_ACCEPTED, NULL); 2248 } 2249 2250 void hfp_ag_hold_incoming_call(void){ 2251 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_INCOMING_CALL_BY_AG, NULL); 2252 } 2253 2254 void hfp_ag_accept_held_incoming_call(void) { 2255 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_ACCEPT_HELD_CALL_BY_AG, NULL); 2256 } 2257 2258 void hfp_ag_reject_held_incoming_call(void){ 2259 hfp_ag_call_sm(HFP_AG_RESPONSE_AND_HOLD_REJECT_HELD_CALL_BY_AG, NULL); 2260 } 2261 2262 static void hfp_ag_set_ag_indicator(const char * name, int value){ 2263 int indicator_index = get_ag_indicator_index_for_name(name); 2264 if (indicator_index < 0) return; 2265 hfp_ag_indicators[indicator_index].status = value; 2266 2267 2268 btstack_linked_list_iterator_t it; 2269 btstack_linked_list_iterator_init(&it, hfp_get_connections()); 2270 while (btstack_linked_list_iterator_has_next(&it)){ 2271 hfp_connection_t * hfp_connection = (hfp_connection_t *)btstack_linked_list_iterator_next(&it); 2272 if (hfp_connection->local_role != HFP_ROLE_AG) continue; 2273 if (! hfp_connection->ag_indicators[indicator_index].enabled) { 2274 log_info("AG indicator '%s' changed to %u but not enabled", hfp_ag_indicators[indicator_index].name, value); 2275 continue; 2276 } 2277 log_info("AG indicator '%s' changed to %u, request transfer statur", hfp_ag_indicators[indicator_index].name, value); 2278 hfp_connection->ag_indicators_status_update_bitmap = store_bit(hfp_connection->ag_indicators_status_update_bitmap, indicator_index, 1); 2279 hfp_ag_run_for_context(hfp_connection); 2280 } 2281 } 2282 2283 void hfp_ag_set_registration_status(int status){ 2284 hfp_ag_set_ag_indicator("service", status); 2285 } 2286 2287 void hfp_ag_set_signal_strength(int strength){ 2288 hfp_ag_set_ag_indicator("signal", strength); 2289 } 2290 2291 void hfp_ag_set_roaming_status(int status){ 2292 hfp_ag_set_ag_indicator("roam", status); 2293 } 2294 2295 void hfp_ag_set_battery_level(int level){ 2296 hfp_ag_set_ag_indicator("battchg", level); 2297 } 2298 2299 void hfp_ag_activate_voice_recognition(hci_con_handle_t acl_handle, int activate){ 2300 if (!get_bit(hfp_supported_features, HFP_AGSF_VOICE_RECOGNITION_FUNCTION)) return; 2301 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2302 if (!hfp_connection){ 2303 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2304 return; 2305 } 2306 2307 if (!get_bit(hfp_connection->remote_supported_features, HFP_HFSF_VOICE_RECOGNITION_FUNCTION)) { 2308 log_info("AG cannot acivate voice recognition - not supported by HF"); 2309 return; 2310 } 2311 2312 if (activate){ 2313 hfp_ag_establish_audio_connection(acl_handle); 2314 } 2315 2316 hfp_connection->ag_activate_voice_recognition = activate; 2317 hfp_connection->command = HFP_CMD_AG_ACTIVATE_VOICE_RECOGNITION; 2318 hfp_ag_run_for_context(hfp_connection); 2319 } 2320 2321 void hfp_ag_set_microphone_gain(hci_con_handle_t acl_handle, int gain){ 2322 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2323 if (!hfp_connection){ 2324 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2325 return; 2326 } 2327 if (hfp_connection->microphone_gain != gain){ 2328 hfp_connection->command = HFP_CMD_SET_MICROPHONE_GAIN; 2329 hfp_connection->microphone_gain = gain; 2330 hfp_connection->send_microphone_gain = 1; 2331 } 2332 hfp_ag_run_for_context(hfp_connection); 2333 } 2334 2335 void hfp_ag_set_speaker_gain(hci_con_handle_t acl_handle, int gain){ 2336 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2337 if (!hfp_connection){ 2338 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2339 return; 2340 } 2341 if (hfp_connection->speaker_gain != gain){ 2342 hfp_connection->speaker_gain = gain; 2343 hfp_connection->send_speaker_gain = 1; 2344 } 2345 hfp_ag_run_for_context(hfp_connection); 2346 } 2347 2348 void hfp_ag_send_phone_number_for_voice_tag(hci_con_handle_t acl_handle, const char * number){ 2349 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2350 if (!hfp_connection){ 2351 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2352 return; 2353 } 2354 hfp_ag_set_clip(0, number); 2355 hfp_connection->send_phone_number_for_voice_tag = 1; 2356 } 2357 2358 void hfp_ag_reject_phone_number_for_voice_tag(hci_con_handle_t acl_handle){ 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_connection->send_error = 1; 2365 } 2366 2367 void hfp_ag_send_dtmf_code_done(hci_con_handle_t acl_handle){ 2368 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2369 if (!hfp_connection){ 2370 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2371 return; 2372 } 2373 hfp_connection->ok_pending = 1; 2374 } 2375 2376 void hfp_ag_set_subcriber_number_information(hfp_phone_number_t * numbers, int numbers_count){ 2377 subscriber_numbers = numbers; 2378 subscriber_numbers_count = numbers_count; 2379 } 2380 2381 void hfp_ag_clear_last_dialed_number(void){ 2382 hfp_gsm_clear_last_dialed_number(); 2383 } 2384 2385 void hfp_ag_notify_incoming_call_waiting(hci_con_handle_t acl_handle){ 2386 hfp_connection_t * hfp_connection = get_hfp_ag_connection_context_for_acl_handle(acl_handle); 2387 if (!hfp_connection){ 2388 log_error("HFP AG: ACL connection 0x%2x is not found.", acl_handle); 2389 return; 2390 } 2391 if (!hfp_connection->call_waiting_notification_enabled) return; 2392 2393 hfp_connection->ag_notify_incoming_call_waiting = 1; 2394 hfp_ag_run_for_context(hfp_connection); 2395 } 2396 2397