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_cmd.h" 52 #include "btstack_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 "btstack_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_AT_CKPD "AT+CKPD=200\r\n" 71 #define HSP_HS_MICROPHONE_GAIN "AT+VGM" 72 #define HSP_HS_SPEAKER_GAIN "AT+VGS" 73 74 static const char default_hsp_hs_service_name[] = "Headset"; 75 76 static bd_addr_t remote = {0x04, 0x0C, 0xCE, 0xE4, 0x85, 0xD3}; 77 static uint8_t channel_nr = 0; 78 79 static uint16_t mtu; 80 static uint16_t rfcomm_cid = 0; 81 static uint16_t sco_handle = 0; 82 static uint16_t rfcomm_handle = 0; 83 84 // static uint8_t connection_state = 0; 85 86 static int hs_microphone_gain = -1; 87 static int hs_speaker_gain = -1; 88 89 static uint8_t hs_send_button_press = 0; 90 static uint8_t hs_support_custom_indications = 0; 91 static uint8_t hs_outgoing_connection = 0; 92 93 typedef enum { 94 HSP_IDLE, 95 HSP_SDP_QUERY_RFCOMM_CHANNEL, 96 HSP_W4_SDP_QUERY_COMPLETE, 97 HSP_W4_RFCOMM_CONNECTED, 98 HSP_W4_USER_ACTION, 99 HSP_W2_CONNECT_SCO, 100 HSP_W4_SCO_CONNECTED, 101 HSP_ACTIVE, 102 HSP_W2_DISCONNECT_SCO, 103 HSP_W4_SCO_DISCONNECTED, 104 HSP_W2_DISCONNECT_RFCOMM, 105 HSP_W4_RFCOMM_DISCONNECTED, 106 HSP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN 107 } hsp_state_t; 108 109 static hsp_state_t hsp_state = HSP_IDLE; 110 111 static void hsp_run(void); 112 static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size); 113 static void handle_query_rfcomm_event(sdp_query_event_t * event, void * context); 114 115 static hsp_hs_callback_t hsp_hs_callback; 116 static void dummy_notify(uint8_t * event, uint16_t size){} 117 118 void hsp_hs_register_packet_handler(hsp_hs_callback_t callback){ 119 if (callback == NULL){ 120 callback = &dummy_notify; 121 } 122 hsp_hs_callback = callback; 123 } 124 125 static void emit_event(uint8_t event_subtype, uint8_t value){ 126 if (!hsp_hs_callback) return; 127 uint8_t event[4]; 128 event[0] = HCI_EVENT_HSP_META; 129 event[1] = sizeof(event) - 2; 130 event[2] = event_subtype; 131 event[3] = value; // status 0 == OK 132 (*hsp_hs_callback)(event, sizeof(event)); 133 } 134 // remote audio volume control 135 // AG +VGM=13 [0..15] ; HS AT+VGM=6 | AG OK 136 137 static int hsp_hs_send_str_over_rfcomm(uint16_t cid, const char * command){ 138 if (!rfcomm_can_send_packet_now(rfcomm_cid)) return 1; 139 int err = rfcomm_send(cid, (uint8_t*) command, strlen(command)); 140 if (err){ 141 printf("rfcomm_send -> error 0X%02x", err); 142 } 143 return err; 144 } 145 146 void hsp_hs_support_custom_indications(int enable){ 147 hs_support_custom_indications = enable; 148 } 149 150 // When support custom commands is enabled, AG will send HSP_SUBEVENT_HS_COMMAND. 151 // On occurance of this event, client's packet handler must send the result back 152 // by calling hsp_hs_send_result function. 153 int hsp_hs_send_result(char * result){ 154 if (!hs_support_custom_indications) return 1; 155 return hsp_hs_send_str_over_rfcomm(rfcomm_cid, result); 156 } 157 158 159 void hsp_hs_create_service(uint8_t * service, uint32_t service_record_handle, int rfcomm_channel_nr, const char * name, uint8_t have_remote_audio_control){ 160 uint8_t* attribute; 161 de_create_sequence(service); 162 163 // 0x0000 "Service Record Handle" 164 de_add_number(service, DE_UINT, DE_SIZE_16, SDP_ServiceRecordHandle); 165 de_add_number(service, DE_UINT, DE_SIZE_32, service_record_handle); 166 167 // 0x0001 "Service Class ID List" 168 de_add_number(service, DE_UINT, DE_SIZE_16, SDP_ServiceClassIDList); 169 attribute = de_push_sequence(service); 170 { 171 // see Bluetooth Erratum #3507 172 de_add_number(attribute, DE_UUID, DE_SIZE_16, SDP_HSP); // 0x1108 173 de_add_number(attribute, DE_UUID, DE_SIZE_16, SDP_Headset_HS); // 0x1131 174 de_add_number(attribute, DE_UUID, DE_SIZE_16, SDP_GenericAudio); // 0x1203 175 } 176 de_pop_sequence(service, attribute); 177 178 // 0x0004 "Protocol Descriptor List" 179 de_add_number(service, DE_UINT, DE_SIZE_16, SDP_ProtocolDescriptorList); 180 attribute = de_push_sequence(service); 181 { 182 uint8_t* l2cpProtocol = de_push_sequence(attribute); 183 { 184 de_add_number(l2cpProtocol, DE_UUID, DE_SIZE_16, SDP_L2CAPProtocol); 185 } 186 de_pop_sequence(attribute, l2cpProtocol); 187 188 uint8_t* rfcomm = de_push_sequence(attribute); 189 { 190 de_add_number(rfcomm, DE_UUID, DE_SIZE_16, SDP_RFCOMMProtocol); // rfcomm_service 191 de_add_number(rfcomm, DE_UINT, DE_SIZE_8, rfcomm_channel_nr); // rfcomm channel 192 } 193 de_pop_sequence(attribute, rfcomm); 194 } 195 de_pop_sequence(service, attribute); 196 197 // 0x0005 "Public Browse Group" 198 de_add_number(service, DE_UINT, DE_SIZE_16, SDP_BrowseGroupList); // public browse group 199 attribute = de_push_sequence(service); 200 { 201 de_add_number(attribute, DE_UUID, DE_SIZE_16, SDP_PublicBrowseGroup); 202 } 203 de_pop_sequence(service, attribute); 204 205 // 0x0009 "Bluetooth Profile Descriptor List" 206 de_add_number(service, DE_UINT, DE_SIZE_16, SDP_BluetoothProfileDescriptorList); 207 attribute = de_push_sequence(service); 208 { 209 uint8_t *hsp_profile = de_push_sequence(attribute); 210 { 211 de_add_number(hsp_profile, DE_UUID, DE_SIZE_16, SDP_HSP); 212 de_add_number(hsp_profile, DE_UINT, DE_SIZE_16, 0x0102); // Verision 1.2 213 } 214 de_pop_sequence(attribute, hsp_profile); 215 } 216 de_pop_sequence(service, attribute); 217 218 // 0x0100 "Service Name" 219 de_add_number(service, DE_UINT, DE_SIZE_16, 0x0100); 220 if (name){ 221 de_add_data(service, DE_STRING, strlen(name), (uint8_t *) name); 222 } else { 223 de_add_data(service, DE_STRING, strlen(default_hsp_hs_service_name), (uint8_t *) default_hsp_hs_service_name); 224 } 225 226 // Remote audio volume control 227 de_add_number(service, DE_UINT, DE_SIZE_16, 0x030C); 228 de_add_number(service, DE_BOOL, DE_SIZE_8, have_remote_audio_control); 229 } 230 231 static void hsp_hs_reset_state(void){ 232 hsp_state = HSP_IDLE; 233 234 rfcomm_cid = 0; 235 rfcomm_handle = 0; 236 sco_handle = 0; 237 238 hs_microphone_gain = -1; 239 hs_speaker_gain = -1; 240 241 hs_send_button_press = 0; 242 hs_support_custom_indications = 0; 243 } 244 245 void hsp_hs_init(uint8_t rfcomm_channel_nr){ 246 // init L2CAP 247 l2cap_init(); 248 l2cap_register_packet_handler(packet_handler); 249 250 rfcomm_init(); 251 rfcomm_register_packet_handler(packet_handler); 252 rfcomm_register_service(rfcomm_channel_nr, 0xffff); // reserved channel, mtu limited by l2cap 253 254 sdp_query_rfcomm_register_callback(handle_query_rfcomm_event, NULL); 255 256 hsp_hs_reset_state(); 257 } 258 259 260 void hsp_hs_connect(bd_addr_t bd_addr){ 261 if (hsp_state != HSP_IDLE) return; 262 hs_outgoing_connection = 1; 263 hsp_state = HSP_SDP_QUERY_RFCOMM_CHANNEL; 264 memcpy(remote, bd_addr, 6); 265 hsp_run(); 266 } 267 268 void hsp_hs_disconnect(bd_addr_t bd_addr){ 269 switch (hsp_state){ 270 case HSP_ACTIVE: 271 printf("HSP_W4_USER_ACTION\n"); 272 hsp_state = HSP_W4_USER_ACTION; 273 hs_send_button_press = 1; 274 break; 275 case HSP_W4_RFCOMM_CONNECTED: 276 printf("HSP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN \n"); 277 hsp_state = HSP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN; 278 break; 279 default: 280 return; 281 } 282 hsp_run(); 283 } 284 285 286 void hsp_hs_set_microphone_gain(uint8_t gain){ 287 if (gain < 0 || gain >15) { 288 printf("Gain must be in interval [0..15], it is given %d\n", gain); 289 return; 290 } 291 hs_microphone_gain = gain; 292 hsp_run(); 293 } 294 295 // AG +VGS=5 [0..15] ; HS AT+VGM=6 | AG OK 296 void hsp_hs_set_speaker_gain(uint8_t gain){ 297 if (gain < 0 || gain >15) { 298 printf("Gain must be in interval [0..15], it is given %d\n", gain); 299 return; 300 } 301 hs_speaker_gain = gain; 302 hsp_run(); 303 } 304 305 306 static void hsp_run(void){ 307 int err; 308 309 if (hs_send_button_press){ 310 hs_send_button_press = 0; 311 err = hsp_hs_send_str_over_rfcomm(rfcomm_cid, HSP_HS_AT_CKPD); 312 if (err) { 313 hs_send_button_press = 1; 314 } 315 return; 316 } 317 318 switch (hsp_state){ 319 case HSP_SDP_QUERY_RFCOMM_CHANNEL: 320 hsp_state = HSP_W4_SDP_QUERY_COMPLETE; 321 sdp_query_rfcomm_channel_and_name_for_uuid(remote, SDP_Headset_AG); 322 break; 323 324 case HSP_W2_CONNECT_SCO: 325 hsp_state = HSP_W4_SCO_CONNECTED; 326 break; 327 328 case HSP_W2_DISCONNECT_SCO: 329 hsp_state = HSP_W4_SCO_DISCONNECTED; 330 break; 331 332 case HSP_ACTIVE: 333 334 if (hs_microphone_gain >= 0){ 335 int gain = hs_microphone_gain; 336 hs_microphone_gain = -1; 337 char buffer[20]; 338 sprintf(buffer, "%s=%d\r\n", HSP_HS_MICROPHONE_GAIN, gain); 339 err = hsp_hs_send_str_over_rfcomm(rfcomm_cid, buffer); 340 if (err) { 341 hs_microphone_gain = gain; 342 } 343 break; 344 } 345 346 if (hs_speaker_gain >= 0){ 347 int gain = hs_speaker_gain; 348 hs_speaker_gain = -1; 349 char buffer[20]; 350 sprintf(buffer, "%s=%d\r\n", HSP_HS_SPEAKER_GAIN, gain); 351 err = hsp_hs_send_str_over_rfcomm(rfcomm_cid, buffer); 352 if (err) { 353 hs_speaker_gain = gain; 354 } 355 break; 356 } 357 358 break; 359 default: 360 break; 361 } 362 } 363 364 365 static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 366 // printf("packet_handler type %u, packet[0] %x\n", packet_type, packet[0]); 367 if (packet_type == RFCOMM_DATA_PACKET){ 368 // skip over leading newline 369 while (size > 0 && (packet[0] == '\n' || packet[0] == '\r')){ 370 size--; 371 packet++; 372 } 373 if (strncmp((char *)packet, HSP_AG_RING, strlen(HSP_AG_RING)) == 0){ 374 emit_event(HSP_SUBEVENT_RING, 0); 375 } else if (strncmp((char *)packet, HSP_AG_OK, strlen(HSP_AG_OK)) == 0){ 376 printf("OK RECEIVED\n"); 377 switch (hsp_state){ 378 case HSP_W4_RFCOMM_CONNECTED: 379 hsp_state = HSP_W2_CONNECT_SCO; 380 break; 381 case HSP_W4_USER_ACTION: 382 hsp_state = HSP_W2_DISCONNECT_SCO; 383 break; 384 default: 385 break; 386 } 387 } else if (strncmp((char *)packet, HSP_MICROPHONE_GAIN, strlen(HSP_MICROPHONE_GAIN)) == 0){ 388 uint8_t gain = (uint8_t)atoi((char*)&packet[strlen(HSP_MICROPHONE_GAIN)]); 389 emit_event(HSP_SUBEVENT_MICROPHONE_GAIN_CHANGED, gain); 390 391 } else if (strncmp((char *)packet, HSP_SPEAKER_GAIN, strlen(HSP_SPEAKER_GAIN)) == 0){ 392 uint8_t gain = (uint8_t)atoi((char*)&packet[strlen(HSP_SPEAKER_GAIN)]); 393 emit_event(HSP_SUBEVENT_SPEAKER_GAIN_CHANGED, gain); 394 } else { 395 if (!hsp_hs_callback) return; 396 // strip trailing newline 397 while (size > 0 && (packet[size-1] == '\n' || packet[size-1] == '\r')){ 398 size--; 399 } 400 // add trailing \0 401 packet[size] = 0; 402 // re-use incoming buffer to avoid reserving large buffers - ugly but efficient 403 uint8_t * event = packet - 3; 404 event[0] = HCI_EVENT_HSP_META; 405 event[1] = size + 1; 406 event[2] = HSP_SUBEVENT_AG_INDICATION; 407 (*hsp_hs_callback)(event, size+3); 408 } 409 hsp_run(); 410 return; 411 } 412 413 if (packet_type != HCI_EVENT_PACKET) return; 414 uint8_t event = packet[0]; 415 bd_addr_t event_addr; 416 uint16_t handle; 417 418 switch (event) { 419 case BTSTACK_EVENT_STATE: 420 // bt stack activated, get started 421 if (packet[2] == HCI_STATE_WORKING){ 422 printf("BTstack activated, get started .\n"); 423 } 424 hsp_hs_callback(packet, size); 425 break; 426 427 case HCI_EVENT_PIN_CODE_REQUEST: 428 // inform about pin code request 429 printf("Pin code request - using '0000'\n\r"); 430 bt_flip_addr(event_addr, &packet[2]); 431 hci_send_cmd(&hci_pin_code_request_reply, &event_addr, 4, "0000"); 432 break; 433 case HCI_EVENT_SYNCHRONOUS_CONNECTION_COMPLETE:{ 434 int index = 2; 435 uint8_t status = packet[index++]; 436 sco_handle = READ_BT_16(packet, index); 437 index+=2; 438 bd_addr_t address; 439 memcpy(address, &packet[index], 6); 440 index+=6; 441 uint8_t link_type = packet[index++]; 442 uint8_t transmission_interval = packet[index++]; // measured in slots 443 uint8_t retransmission_interval = packet[index++];// measured in slots 444 uint16_t rx_packet_length = READ_BT_16(packet, index); // measured in bytes 445 index+=2; 446 uint16_t tx_packet_length = READ_BT_16(packet, index); // measured in bytes 447 index+=2; 448 uint8_t air_mode = packet[index]; 449 450 if (status != 0){ 451 log_error("(e)SCO Connection is not established, status %u", status); 452 break; 453 } 454 switch (link_type){ 455 case 0x00: 456 printf("SCO Connection established. \n"); 457 if (transmission_interval != 0) log_error("SCO Connection: transmission_interval not zero: %d.", transmission_interval); 458 if (retransmission_interval != 0) log_error("SCO Connection: retransmission_interval not zero: %d.", retransmission_interval); 459 if (rx_packet_length != 0) log_error("SCO Connection: rx_packet_length not zero: %d.", rx_packet_length); 460 if (tx_packet_length != 0) log_error("SCO Connection: tx_packet_length not zero: %d.", tx_packet_length); 461 break; 462 case 0x02: 463 printf("eSCO Connection established. \n"); 464 break; 465 default: 466 log_error("(e)SCO reserved link_type 0x%2x", link_type); 467 break; 468 } 469 log_info("sco_handle 0x%2x, address %s, transmission_interval %u slots, retransmission_interval %u slots, " 470 " rx_packet_length %u bytes, tx_packet_length %u bytes, air_mode 0x%2x (0x02 == CVSD)", sco_handle, 471 bd_addr_to_str(address), transmission_interval, retransmission_interval, rx_packet_length, tx_packet_length, air_mode); 472 473 if (hsp_state == HSP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN){ 474 hsp_state = HSP_W2_DISCONNECT_SCO; 475 break; 476 } 477 478 // forward event to app 479 hsp_hs_callback(packet, size); 480 481 hsp_state = HSP_ACTIVE; 482 emit_event(HSP_SUBEVENT_AUDIO_CONNECTION_COMPLETE, 0); 483 break; 484 } 485 486 case RFCOMM_EVENT_INCOMING_CONNECTION: 487 // data: event (8), len(8), address(48), channel (8), rfcomm_cid (16) 488 if (hsp_state != HSP_IDLE) return; 489 490 bt_flip_addr(event_addr, &packet[2]); 491 rfcomm_cid = READ_BT_16(packet, 9); 492 printf("RFCOMM channel %u requested for %s\n", packet[8], bd_addr_to_str(event_addr)); 493 rfcomm_accept_connection(rfcomm_cid); 494 495 hsp_state = HSP_W4_RFCOMM_CONNECTED; 496 break; 497 498 case RFCOMM_EVENT_OPEN_CHANNEL_COMPLETE: 499 printf("RFCOMM_EVENT_OPEN_CHANNEL_COMPLETE packet_handler type %u, packet[0] %x\n", packet_type, packet[0]); 500 // data: event(8), len(8), status (8), address (48), handle(16), server channel(8), rfcomm_cid(16), max frame size(16) 501 if (packet[2]) { 502 printf("RFCOMM channel open failed, status %u\n", packet[2]); 503 hsp_hs_reset_state(); 504 emit_event(HSP_SUBEVENT_AUDIO_CONNECTION_COMPLETE, packet[2]); 505 hs_outgoing_connection = 0; 506 } else { 507 // data: event(8) , len(8), status (8), address (48), handle (16), server channel(8), rfcomm_cid(16), max frame size(16) 508 rfcomm_handle = READ_BT_16(packet, 9); 509 rfcomm_cid = READ_BT_16(packet, 12); 510 mtu = READ_BT_16(packet, 14); 511 printf("RFCOMM channel open succeeded. New RFCOMM Channel ID %u, max frame size %u\n", rfcomm_cid, mtu); 512 513 if (hs_outgoing_connection){ 514 hs_outgoing_connection = 0; 515 hs_send_button_press = 1; 516 } 517 518 switch (hsp_state){ 519 case HSP_W4_RFCOMM_CONNECTED: 520 hsp_state = HSP_W2_CONNECT_SCO; 521 break; 522 case HSP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN: 523 hsp_state = HSP_W2_DISCONNECT_RFCOMM; 524 break; 525 default: 526 break; 527 } 528 } 529 break; 530 case DAEMON_EVENT_HCI_PACKET_SENT: 531 case HCI_EVENT_NUMBER_OF_COMPLETED_PACKETS: 532 case RFCOMM_EVENT_CREDITS: 533 hsp_hs_callback(packet, size); 534 break; 535 536 case HCI_EVENT_DISCONNECTION_COMPLETE: 537 printf("HCI_EVENT_DISCONNECTION_COMPLETE \n"); 538 // if (hsp_state != HSP_W4_SCO_DISCONNECTED){ 539 // printf("received gap disconnect in wrong hsp state\n"); 540 // } 541 handle = READ_BT_16(packet,3); 542 if (handle == sco_handle){ 543 sco_handle = 0; 544 hsp_state = HSP_W2_DISCONNECT_RFCOMM; 545 printf(" HSP_W2_DISCONNECT_RFCOMM\n"); 546 break; 547 } 548 break; 549 case RFCOMM_EVENT_CHANNEL_CLOSED: 550 printf("RFCOMM_EVENT_CHANNEL_CLOSED\n"); 551 // if (hsp_state != HSP_W4_RFCOMM_DISCONNECTED){ 552 // printf("received RFCOMM disconnect in wrong hsp state\n"); 553 // } 554 printf("RFCOMM channel closed\n"); 555 hsp_hs_reset_state(); 556 emit_event(HSP_SUBEVENT_AUDIO_DISCONNECTION_COMPLETE,0); 557 break; 558 default: 559 break; 560 } 561 hsp_run(); 562 } 563 564 static void handle_query_rfcomm_event(sdp_query_event_t * event, void * context){ 565 sdp_query_rfcomm_service_event_t * ve; 566 sdp_query_complete_event_t * ce; 567 568 switch (event->type){ 569 case SDP_QUERY_RFCOMM_SERVICE: 570 ve = (sdp_query_rfcomm_service_event_t*) event; 571 channel_nr = ve->channel_nr; 572 printf("** Service name: '%s', RFCOMM port %u\n", ve->service_name, channel_nr); 573 break; 574 case SDP_QUERY_COMPLETE: 575 ce = (sdp_query_complete_event_t*) event; 576 577 if (channel_nr > 0){ 578 hsp_state = HSP_W4_RFCOMM_CONNECTED; 579 printf("RFCOMM create channel.\n"); 580 rfcomm_create_channel(remote, channel_nr, NULL); 581 break; 582 } 583 hsp_hs_reset_state(); 584 printf("Service not found, status %u.\n", ce->status); 585 exit(0); 586 break; 587 } 588 } 589 590 void hsp_hs_press_button(void){ 591 hs_send_button_press = 1; 592 hsp_run(); 593 } 594 595 596 597 598