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 // ***************************************************************************** 39 // 40 // Minimal setup for HSP Headset (!! UNDER DEVELOPMENT !!) 41 // 42 // ***************************************************************************** 43 44 #include "btstack-config.h" 45 46 #include <stdint.h> 47 #include <stdio.h> 48 #include <stdlib.h> 49 #include <string.h> 50 51 #include "hci_cmds.h" 52 #include "run_loop.h" 53 54 #include "hci.h" 55 #include "btstack_memory.h" 56 #include "hci_dump.h" 57 #include "l2cap.h" 58 #include "classic/sdp_query_rfcomm.h" 59 #include "classic/sdp.h" 60 #include "debug.h" 61 #include "hsp_hs.h" 62 63 64 #define HSP_AG_OK "OK" 65 #define HSP_AG_ERROR "ERROR" 66 #define HSP_AG_RING "RING" 67 #define HSP_MICROPHONE_GAIN "+VGM=" 68 #define HSP_SPEAKER_GAIN "+VGS=" 69 70 #define HSP_HS_BUTTON_PRESS "AT+CKPD=200\r\n" 71 #define HSP_HS_AT_CKPD "AT+CKPD=200\r\n" 72 #define HSP_HS_MICROPHONE_GAIN "AT+VGM" 73 #define HSP_HS_SPEAKER_GAIN "AT+VGS" 74 75 static const char default_hsp_hs_service_name[] = "Headset"; 76 77 static bd_addr_t remote = {0x04, 0x0C, 0xCE, 0xE4, 0x85, 0xD3}; 78 static uint8_t channel_nr = 0; 79 80 static uint16_t mtu; 81 static uint16_t rfcomm_cid = 0; 82 static uint16_t sco_handle = 0; 83 static uint16_t rfcomm_handle = 0; 84 85 // static uint8_t connection_state = 0; 86 87 static int hs_microphone_gain = -1; 88 static int hs_speaker_gain = -1; 89 90 static uint8_t hs_send_button_press = 0; 91 static uint8_t hs_ok_received = 0; 92 static uint8_t hs_ring_received = 0; 93 static uint8_t hs_support_custom_indications = 0; 94 95 96 typedef enum { 97 HSP_IDLE, 98 HSP_SDP_QUERY_RFCOMM_CHANNEL, 99 HSP_W4_SDP_QUERY_COMPLETE, 100 HSP_W4_RFCOMM_CONNECTED, 101 HSP_W4_USER_ACTION, 102 HSP_W2_CONNECT_SCO, 103 HSP_W4_SCO_CONNECTED, 104 HSP_ACTIVE, 105 HSP_W2_DISCONNECT_SCO, 106 HSP_W4_SCO_DISCONNECTED, 107 HSP_W2_DISCONNECT_RFCOMM, 108 HSP_W4_RFCOMM_DISCONNECTED, 109 HSP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN 110 } hsp_state_t; 111 112 static hsp_state_t hsp_state = HSP_IDLE; 113 114 static void hsp_run(void); 115 static void packet_handler (void * connection, uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 116 static void handle_query_rfcomm_event(sdp_query_event_t * event, void * context); 117 118 static hsp_hs_callback_t hsp_hs_callback; 119 static void dummy_notify(uint8_t * event, uint16_t size){} 120 121 void hsp_hs_register_packet_handler(hsp_hs_callback_t callback){ 122 if (callback == NULL){ 123 callback = &dummy_notify; 124 } 125 hsp_hs_callback = callback; 126 } 127 128 static void emit_event(uint8_t event_subtype, uint8_t value){ 129 if (!hsp_hs_callback) return; 130 uint8_t event[4]; 131 event[0] = HCI_EVENT_HSP_META; 132 event[1] = sizeof(event) - 2; 133 event[2] = event_subtype; 134 event[3] = value; // status 0 == OK 135 (*hsp_hs_callback)(event, sizeof(event)); 136 } 137 // remote audio volume control 138 // AG +VGM=13 [0..15] ; HS AT+VGM=6 | AG OK 139 140 static int hsp_hs_send_str_over_rfcomm(uint16_t cid, const char * command){ 141 if (!rfcomm_can_send_packet_now(rfcomm_cid)) return 1; 142 int err = rfcomm_send_internal(cid, (uint8_t*) command, strlen(command)); 143 if (err){ 144 printf("rfcomm_send_internal -> error 0X%02x", err); 145 } 146 return err; 147 } 148 149 void hsp_hs_support_custom_indications(int enable){ 150 hs_support_custom_indications = enable; 151 } 152 153 // When support custom commands is enabled, AG will send HSP_SUBEVENT_HS_COMMAND. 154 // On occurance of this event, client's packet handler must send the result back 155 // by calling hsp_hs_send_result function. 156 int hsp_hs_send_result(char * result){ 157 if (!hs_support_custom_indications) return 1; 158 return hsp_hs_send_str_over_rfcomm(rfcomm_cid, result); 159 } 160 161 162 void hsp_hs_create_service(uint8_t * service, int rfcomm_channel_nr, const char * name, uint8_t have_remote_audio_control){ 163 uint8_t* attribute; 164 de_create_sequence(service); 165 166 // 0x0000 "Service Record Handle" 167 de_add_number(service, DE_UINT, DE_SIZE_16, SDP_ServiceRecordHandle); 168 de_add_number(service, DE_UINT, DE_SIZE_32, 0x10001); 169 170 // 0x0001 "Service Class ID List" 171 de_add_number(service, DE_UINT, DE_SIZE_16, SDP_ServiceClassIDList); 172 attribute = de_push_sequence(service); 173 { 174 // "UUID for PAN Service" / see Bluetooth Erratum #3507 175 de_add_number(attribute, DE_UUID, DE_SIZE_16, SDP_HSP); // 0x1108 176 de_add_number(attribute, DE_UUID, DE_SIZE_16, SDP_Headset_HS); // 0x1131 177 de_add_number(attribute, DE_UUID, DE_SIZE_16, SDP_GenericAudio); // 0x1203 178 } 179 de_pop_sequence(service, attribute); 180 181 // 0x0004 "Protocol Descriptor List" 182 de_add_number(service, DE_UINT, DE_SIZE_16, SDP_ProtocolDescriptorList); 183 attribute = de_push_sequence(service); 184 { 185 uint8_t* l2cpProtocol = de_push_sequence(attribute); 186 { 187 de_add_number(l2cpProtocol, DE_UUID, DE_SIZE_16, SDP_L2CAPProtocol); 188 } 189 de_pop_sequence(attribute, l2cpProtocol); 190 191 uint8_t* rfcomm = de_push_sequence(attribute); 192 { 193 de_add_number(rfcomm, DE_UUID, DE_SIZE_16, SDP_RFCOMMProtocol); // rfcomm_service 194 de_add_number(rfcomm, DE_UINT, DE_SIZE_8, rfcomm_channel_nr); // rfcomm channel 195 } 196 de_pop_sequence(attribute, rfcomm); 197 } 198 de_pop_sequence(service, attribute); 199 200 // 0x0005 "Public Browse Group" 201 de_add_number(service, DE_UINT, DE_SIZE_16, SDP_BrowseGroupList); // public browse group 202 attribute = de_push_sequence(service); 203 { 204 de_add_number(attribute, DE_UUID, DE_SIZE_16, SDP_PublicBrowseGroup); 205 } 206 de_pop_sequence(service, attribute); 207 208 // 0x0009 "Bluetooth Profile Descriptor List" 209 de_add_number(service, DE_UINT, DE_SIZE_16, SDP_BluetoothProfileDescriptorList); 210 attribute = de_push_sequence(service); 211 { 212 uint8_t *sppProfile = de_push_sequence(attribute); 213 { 214 de_add_number(sppProfile, DE_UUID, DE_SIZE_16, SDP_HSP); 215 de_add_number(sppProfile, DE_UINT, DE_SIZE_16, 0x0102); // Verision 1.2 216 } 217 de_pop_sequence(attribute, sppProfile); 218 } 219 de_pop_sequence(service, attribute); 220 221 // 0x0100 "Service Name" 222 de_add_number(service, DE_UINT, DE_SIZE_16, 0x0100); 223 if (name){ 224 de_add_data(service, DE_STRING, strlen(name), (uint8_t *) name); 225 } else { 226 de_add_data(service, DE_STRING, strlen(default_hsp_hs_service_name), (uint8_t *) default_hsp_hs_service_name); 227 } 228 229 // Remote audio volume control 230 de_add_number(service, DE_UINT, DE_SIZE_16, 0x030C); 231 de_add_number(service, DE_BOOL, DE_SIZE_8, have_remote_audio_control); 232 } 233 234 static void hsp_hs_reset_state(void){ 235 hsp_state = HSP_IDLE; 236 237 rfcomm_cid = 0; 238 rfcomm_handle = 0; 239 sco_handle = 0; 240 241 hs_microphone_gain = -1; 242 hs_speaker_gain = -1; 243 244 hs_send_button_press = 0; 245 hs_ok_received = 0; 246 hs_ring_received = 0; 247 hs_support_custom_indications = 0; 248 } 249 250 void hsp_hs_init(uint8_t rfcomm_channel_nr){ 251 // init L2CAP 252 l2cap_init(); 253 l2cap_register_packet_handler(packet_handler); 254 255 rfcomm_init(); 256 rfcomm_register_packet_handler(packet_handler); 257 rfcomm_register_service_internal(NULL, rfcomm_channel_nr, 0xffff); // reserved channel, mtu limited by l2cap 258 259 sdp_query_rfcomm_register_callback(handle_query_rfcomm_event, NULL); 260 261 hsp_hs_reset_state(); 262 } 263 264 265 void hsp_hs_connect(bd_addr_t bd_addr){ 266 if (hsp_state != HSP_IDLE) return; 267 hsp_state = HSP_SDP_QUERY_RFCOMM_CHANNEL; 268 memcpy(remote, bd_addr, 6); 269 hsp_run(); 270 } 271 272 void hsp_hs_disconnect(bd_addr_t bd_addr){ 273 switch (hsp_state){ 274 case HSP_ACTIVE: 275 printf("HSP_W4_USER_ACTION\n"); 276 hsp_state = HSP_W4_USER_ACTION; 277 hs_send_button_press = 1; 278 break; 279 case HSP_W4_RFCOMM_CONNECTED: 280 printf("HSP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN \n"); 281 hsp_state = HSP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN; 282 break; 283 default: 284 return; 285 } 286 hsp_run(); 287 } 288 289 290 void hsp_hs_set_microphone_gain(uint8_t gain){ 291 if (gain < 0 || gain >15) { 292 printf("Gain must be in interval [0..15], it is given %d\n", gain); 293 return; 294 } 295 hs_microphone_gain = gain; 296 hsp_run(); 297 } 298 299 // AG +VGS=5 [0..15] ; HS AT+VGM=6 | AG OK 300 void hsp_hs_set_speaker_gain(uint8_t gain){ 301 if (gain < 0 || gain >15) { 302 printf("Gain must be in interval [0..15], it is given %d\n", gain); 303 return; 304 } 305 hs_speaker_gain = gain; 306 hsp_run(); 307 } 308 309 310 static void hsp_run(void){ 311 int err; 312 if (hs_ring_received){ 313 hs_ring_received = 0; 314 hs_send_button_press = 1; 315 } 316 317 if (hs_ok_received){ 318 hs_ok_received = 0; 319 } 320 321 if (hs_send_button_press){ 322 hs_send_button_press = 0; 323 if (hsp_state == HSP_W4_USER_ACTION){ 324 err = hsp_hs_send_str_over_rfcomm(rfcomm_cid, HSP_HS_AT_CKPD); 325 } else { 326 err = hsp_hs_send_str_over_rfcomm(rfcomm_cid, HSP_HS_BUTTON_PRESS); 327 } 328 if (err) { 329 hs_send_button_press = 1; 330 } 331 return; 332 } 333 334 switch (hsp_state){ 335 case HSP_SDP_QUERY_RFCOMM_CHANNEL: 336 hsp_state = HSP_W4_SDP_QUERY_COMPLETE; 337 sdp_query_rfcomm_channel_and_name_for_uuid(remote, SDP_Headset_AG); 338 break; 339 340 case HSP_W2_CONNECT_SCO: 341 hsp_state = HSP_W4_SCO_CONNECTED; 342 break; 343 344 case HSP_W2_DISCONNECT_SCO: 345 hsp_state = HSP_W4_SCO_DISCONNECTED; 346 break; 347 348 case HSP_ACTIVE: 349 if (hs_ok_received) break; 350 351 if (hs_microphone_gain >= 0){ 352 char buffer[20]; 353 sprintf(buffer, "%s=%d\r\n", HSP_HS_MICROPHONE_GAIN, hs_microphone_gain); 354 err = hsp_hs_send_str_over_rfcomm(rfcomm_cid, buffer); 355 if (!err) hs_microphone_gain = -1; 356 break; 357 } 358 359 if (hs_speaker_gain >= 0){ 360 char buffer[20]; 361 sprintf(buffer, "%s=%d\r\n", HSP_HS_SPEAKER_GAIN, hs_speaker_gain); 362 err = hsp_hs_send_str_over_rfcomm(rfcomm_cid, buffer); 363 if (!err) hs_speaker_gain = -1; 364 break; 365 } 366 367 break; 368 default: 369 break; 370 } 371 } 372 373 374 static void packet_handler (void * connection, uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 375 // printf("packet_handler type %u, packet[0] %x\n", packet_type, packet[0]); 376 if (packet_type == RFCOMM_DATA_PACKET){ 377 while (size > 0 && (packet[0] == '\n' || packet[0] == '\r')){ 378 size--; 379 packet++; 380 } 381 if (strncmp((char *)packet, HSP_AG_RING, strlen(HSP_AG_RING)) == 0){ 382 hs_ring_received = 1; 383 } if (strncmp((char *)packet, HSP_AG_OK, strlen(HSP_AG_OK)) == 0){ 384 hs_ok_received = 1; 385 switch (hsp_state){ 386 case HSP_W4_RFCOMM_CONNECTED: 387 hsp_state = HSP_W2_CONNECT_SCO; 388 break; 389 case HSP_W4_USER_ACTION: 390 hsp_state = HSP_W2_DISCONNECT_SCO; 391 break; 392 default: 393 break; 394 } 395 } else if (strncmp((char *)packet, HSP_MICROPHONE_GAIN, strlen(HSP_MICROPHONE_GAIN)) == 0){ 396 uint8_t gain = (uint8_t)atoi((char*)&packet[strlen(HSP_MICROPHONE_GAIN)]); 397 emit_event(HSP_SUBEVENT_MICROPHONE_GAIN_CHANGED, gain); 398 399 } else if (strncmp((char *)packet, HSP_SPEAKER_GAIN, strlen(HSP_SPEAKER_GAIN)) == 0){ 400 uint8_t gain = (uint8_t)atoi((char*)&packet[strlen(HSP_SPEAKER_GAIN)]); 401 emit_event(HSP_SUBEVENT_SPEAKER_GAIN_CHANGED, gain); 402 } else { 403 if (!hsp_hs_callback) return; 404 // re-use incoming buffer to avoid reserving large buffers - ugly but efficient 405 uint8_t * event = packet - 3; 406 event[0] = HCI_EVENT_HSP_META; 407 event[1] = size + 1; 408 event[2] = HSP_SUBEVENT_AG_INDICATION; 409 (*hsp_hs_callback)(event, size+3); 410 } 411 hsp_run(); 412 return; 413 } 414 415 if (packet_type != HCI_EVENT_PACKET) return; 416 uint8_t event = packet[0]; 417 bd_addr_t event_addr; 418 uint16_t handle; 419 420 switch (event) { 421 case BTSTACK_EVENT_STATE: 422 // bt stack activated, get started 423 if (packet[2] == HCI_STATE_WORKING){ 424 printf("BTstack activated, get started .\n"); 425 } 426 hsp_hs_callback(packet, size); 427 break; 428 429 case HCI_EVENT_PIN_CODE_REQUEST: 430 // inform about pin code request 431 printf("Pin code request - using '0000'\n\r"); 432 bt_flip_addr(event_addr, &packet[2]); 433 hci_send_cmd(&hci_pin_code_request_reply, &event_addr, 4, "0000"); 434 break; 435 case HCI_EVENT_SYNCHRONOUS_CONNECTION_COMPLETE:{ 436 int index = 2; 437 uint8_t status = packet[index++]; 438 sco_handle = READ_BT_16(packet, index); 439 index+=2; 440 bd_addr_t address; 441 memcpy(address, &packet[index], 6); 442 index+=6; 443 uint8_t link_type = packet[index++]; 444 uint8_t transmission_interval = packet[index++]; // measured in slots 445 uint8_t retransmission_interval = packet[index++];// measured in slots 446 uint16_t rx_packet_length = READ_BT_16(packet, index); // measured in bytes 447 index+=2; 448 uint16_t tx_packet_length = READ_BT_16(packet, index); // measured in bytes 449 index+=2; 450 uint8_t air_mode = packet[index]; 451 452 if (status != 0){ 453 log_error("(e)SCO Connection is not established, status %u", status); 454 break; 455 } 456 switch (link_type){ 457 case 0x00: 458 printf("SCO Connection established. \n"); 459 if (transmission_interval != 0) log_error("SCO Connection: transmission_interval not zero: %d.", transmission_interval); 460 if (retransmission_interval != 0) log_error("SCO Connection: retransmission_interval not zero: %d.", retransmission_interval); 461 if (rx_packet_length != 0) log_error("SCO Connection: rx_packet_length not zero: %d.", rx_packet_length); 462 if (tx_packet_length != 0) log_error("SCO Connection: tx_packet_length not zero: %d.", tx_packet_length); 463 break; 464 case 0x02: 465 printf("eSCO Connection established. \n"); 466 break; 467 default: 468 log_error("(e)SCO reserved link_type 0x%2x", link_type); 469 break; 470 } 471 log_info("sco_handle 0x%2x, address %s, transmission_interval %u slots, retransmission_interval %u slots, " 472 " rx_packet_length %u bytes, tx_packet_length %u bytes, air_mode 0x%2x (0x02 == CVSD)", sco_handle, 473 bd_addr_to_str(address), transmission_interval, retransmission_interval, rx_packet_length, tx_packet_length, air_mode); 474 475 if (hsp_state == HSP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN){ 476 hsp_state = HSP_W2_DISCONNECT_SCO; 477 break; 478 } 479 480 // forward event to app 481 hsp_hs_callback(packet, size); 482 483 hsp_state = HSP_ACTIVE; 484 emit_event(HSP_SUBEVENT_AUDIO_CONNECTION_COMPLETE, 0); 485 break; 486 } 487 488 case RFCOMM_EVENT_INCOMING_CONNECTION: 489 // data: event (8), len(8), address(48), channel (8), rfcomm_cid (16) 490 if (hsp_state != HSP_IDLE) return; 491 492 bt_flip_addr(event_addr, &packet[2]); 493 rfcomm_cid = READ_BT_16(packet, 9); 494 printf("RFCOMM channel %u requested for %s\n", packet[8], bd_addr_to_str(event_addr)); 495 rfcomm_accept_connection_internal(rfcomm_cid); 496 497 hsp_state = HSP_W4_RFCOMM_CONNECTED; 498 hs_send_button_press = 1; 499 break; 500 501 case RFCOMM_EVENT_OPEN_CHANNEL_COMPLETE: 502 printf("RFCOMM_EVENT_OPEN_CHANNEL_COMPLETE packet_handler type %u, packet[0] %x\n", packet_type, packet[0]); 503 // data: event(8), len(8), status (8), address (48), handle(16), server channel(8), rfcomm_cid(16), max frame size(16) 504 if (packet[2]) { 505 printf("RFCOMM channel open failed, status %u\n", packet[2]); 506 hsp_hs_reset_state(); 507 emit_event(HSP_SUBEVENT_AUDIO_CONNECTION_COMPLETE, packet[2]); 508 } else { 509 // data: event(8) , len(8), status (8), address (48), handle (16), server channel(8), rfcomm_cid(16), max frame size(16) 510 rfcomm_handle = READ_BT_16(packet, 9); 511 rfcomm_cid = READ_BT_16(packet, 12); 512 mtu = READ_BT_16(packet, 14); 513 printf("RFCOMM channel open succeeded. New RFCOMM Channel ID %u, max frame size %u\n", rfcomm_cid, mtu); 514 515 switch (hsp_state){ 516 case HSP_W4_RFCOMM_CONNECTED: 517 hsp_state = HSP_W2_CONNECT_SCO; 518 hs_send_button_press = 1; 519 break; 520 case HSP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN: 521 hsp_state = HSP_W2_DISCONNECT_RFCOMM; 522 break; 523 default: 524 break; 525 } 526 } 527 break; 528 case DAEMON_EVENT_HCI_PACKET_SENT: 529 case HCI_EVENT_NUMBER_OF_COMPLETED_PACKETS: 530 case RFCOMM_EVENT_CREDITS: 531 hsp_hs_callback(packet, size); 532 break; 533 534 case HCI_EVENT_DISCONNECTION_COMPLETE: 535 printf("HCI_EVENT_DISCONNECTION_COMPLETE \n"); 536 if (hsp_state != HSP_W4_SCO_DISCONNECTED){ 537 printf("received gap disconnect in wrong hsp state\n"); 538 } 539 handle = READ_BT_16(packet,3); 540 if (handle == sco_handle){ 541 sco_handle = 0; 542 hsp_state = HSP_W2_DISCONNECT_RFCOMM; 543 printf(" HSP_W2_DISCONNECT_RFCOMM\n"); 544 break; 545 } 546 break; 547 case RFCOMM_EVENT_CHANNEL_CLOSED: 548 printf("RFCOMM_EVENT_CHANNEL_CLOSED\n"); 549 if (hsp_state != HSP_W4_RFCOMM_DISCONNECTED){ 550 printf("received RFCOMM disconnect in wrong hsp state\n"); 551 } 552 printf("RFCOMM channel closed\n"); 553 hsp_hs_reset_state(); 554 emit_event(HSP_SUBEVENT_AUDIO_DISCONNECTION_COMPLETE,0); 555 break; 556 default: 557 break; 558 } 559 hsp_run(); 560 } 561 562 static void handle_query_rfcomm_event(sdp_query_event_t * event, void * context){ 563 sdp_query_rfcomm_service_event_t * ve; 564 sdp_query_complete_event_t * ce; 565 566 switch (event->type){ 567 case SDP_QUERY_RFCOMM_SERVICE: 568 ve = (sdp_query_rfcomm_service_event_t*) event; 569 channel_nr = ve->channel_nr; 570 printf("** Service name: '%s', RFCOMM port %u\n", ve->service_name, channel_nr); 571 break; 572 case SDP_QUERY_COMPLETE: 573 ce = (sdp_query_complete_event_t*) event; 574 575 if (channel_nr > 0){ 576 hsp_state = HSP_W4_RFCOMM_CONNECTED; 577 printf("RFCOMM create channel.\n"); 578 rfcomm_create_channel_internal(NULL, remote, channel_nr); 579 break; 580 } 581 hsp_hs_reset_state(); 582 printf("Service not found, status %u.\n", ce->status); 583 exit(0); 584 break; 585 } 586 } 587 588 589 590