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 } 134 135 static void emit_event_audio_connected(uint8_t status, uint16_t handle){ 136 if (!hsp_hs_callback) return; 137 uint8_t event[6]; 138 event[0] = HCI_EVENT_HSP_META; 139 event[1] = sizeof(event) - 2; 140 event[2] = HSP_SUBEVENT_AUDIO_CONNECTION_COMPLETE; 141 event[3] = status; 142 bt_store_16(event, 4, handle); 143 (*hsp_hs_callback)(event, sizeof(event)); 144 } 145 146 // remote audio volume control 147 // AG +VGM=13 [0..15] ; HS AT+VGM=6 | AG OK 148 149 static int hsp_hs_send_str_over_rfcomm(uint16_t cid, const char * command){ 150 if (!rfcomm_can_send_packet_now(rfcomm_cid)) return 1; 151 int err = rfcomm_send(cid, (uint8_t*) command, strlen(command)); 152 if (err){ 153 printf("rfcomm_send -> error 0X%02x", err); 154 } 155 return err; 156 } 157 158 void hsp_hs_support_custom_indications(int enable){ 159 hs_support_custom_indications = enable; 160 } 161 162 // When support custom commands is enabled, AG will send HSP_SUBEVENT_HS_COMMAND. 163 // On occurance of this event, client's packet handler must send the result back 164 // by calling hsp_hs_send_result function. 165 int hsp_hs_send_result(char * result){ 166 if (!hs_support_custom_indications) return 1; 167 return hsp_hs_send_str_over_rfcomm(rfcomm_cid, result); 168 } 169 170 171 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){ 172 uint8_t* attribute; 173 de_create_sequence(service); 174 175 // 0x0000 "Service Record Handle" 176 de_add_number(service, DE_UINT, DE_SIZE_16, SDP_ServiceRecordHandle); 177 de_add_number(service, DE_UINT, DE_SIZE_32, service_record_handle); 178 179 // 0x0001 "Service Class ID List" 180 de_add_number(service, DE_UINT, DE_SIZE_16, SDP_ServiceClassIDList); 181 attribute = de_push_sequence(service); 182 { 183 // see Bluetooth Erratum #3507 184 de_add_number(attribute, DE_UUID, DE_SIZE_16, SDP_HSP); // 0x1108 185 de_add_number(attribute, DE_UUID, DE_SIZE_16, SDP_Headset_HS); // 0x1131 186 de_add_number(attribute, DE_UUID, DE_SIZE_16, SDP_GenericAudio); // 0x1203 187 } 188 de_pop_sequence(service, attribute); 189 190 // 0x0004 "Protocol Descriptor List" 191 de_add_number(service, DE_UINT, DE_SIZE_16, SDP_ProtocolDescriptorList); 192 attribute = de_push_sequence(service); 193 { 194 uint8_t* l2cpProtocol = de_push_sequence(attribute); 195 { 196 de_add_number(l2cpProtocol, DE_UUID, DE_SIZE_16, SDP_L2CAPProtocol); 197 } 198 de_pop_sequence(attribute, l2cpProtocol); 199 200 uint8_t* rfcomm = de_push_sequence(attribute); 201 { 202 de_add_number(rfcomm, DE_UUID, DE_SIZE_16, SDP_RFCOMMProtocol); // rfcomm_service 203 de_add_number(rfcomm, DE_UINT, DE_SIZE_8, rfcomm_channel_nr); // rfcomm channel 204 } 205 de_pop_sequence(attribute, rfcomm); 206 } 207 de_pop_sequence(service, attribute); 208 209 // 0x0005 "Public Browse Group" 210 de_add_number(service, DE_UINT, DE_SIZE_16, SDP_BrowseGroupList); // public browse group 211 attribute = de_push_sequence(service); 212 { 213 de_add_number(attribute, DE_UUID, DE_SIZE_16, SDP_PublicBrowseGroup); 214 } 215 de_pop_sequence(service, attribute); 216 217 // 0x0009 "Bluetooth Profile Descriptor List" 218 de_add_number(service, DE_UINT, DE_SIZE_16, SDP_BluetoothProfileDescriptorList); 219 attribute = de_push_sequence(service); 220 { 221 uint8_t *hsp_profile = de_push_sequence(attribute); 222 { 223 de_add_number(hsp_profile, DE_UUID, DE_SIZE_16, SDP_HSP); 224 de_add_number(hsp_profile, DE_UINT, DE_SIZE_16, 0x0102); // Verision 1.2 225 } 226 de_pop_sequence(attribute, hsp_profile); 227 } 228 de_pop_sequence(service, attribute); 229 230 // 0x0100 "Service Name" 231 de_add_number(service, DE_UINT, DE_SIZE_16, 0x0100); 232 if (name){ 233 de_add_data(service, DE_STRING, strlen(name), (uint8_t *) name); 234 } else { 235 de_add_data(service, DE_STRING, strlen(default_hsp_hs_service_name), (uint8_t *) default_hsp_hs_service_name); 236 } 237 238 // Remote audio volume control 239 de_add_number(service, DE_UINT, DE_SIZE_16, 0x030C); 240 de_add_number(service, DE_BOOL, DE_SIZE_8, have_remote_audio_control); 241 } 242 243 static void hsp_hs_reset_state(void){ 244 hsp_state = HSP_IDLE; 245 246 rfcomm_cid = 0; 247 rfcomm_handle = 0; 248 sco_handle = 0; 249 250 hs_microphone_gain = -1; 251 hs_speaker_gain = -1; 252 253 hs_send_button_press = 0; 254 hs_support_custom_indications = 0; 255 } 256 257 void hsp_hs_init(uint8_t rfcomm_channel_nr){ 258 // init L2CAP 259 l2cap_init(); 260 l2cap_register_packet_handler(packet_handler); 261 262 rfcomm_init(); 263 rfcomm_register_packet_handler(packet_handler); 264 rfcomm_register_service(rfcomm_channel_nr, 0xffff); // reserved channel, mtu limited by l2cap 265 266 sdp_query_rfcomm_register_callback(handle_query_rfcomm_event, NULL); 267 268 hsp_hs_reset_state(); 269 } 270 271 272 void hsp_hs_connect(bd_addr_t bd_addr){ 273 if (hsp_state != HSP_IDLE) return; 274 hs_outgoing_connection = 1; 275 hsp_state = HSP_SDP_QUERY_RFCOMM_CHANNEL; 276 memcpy(remote, bd_addr, 6); 277 hsp_run(); 278 } 279 280 void hsp_hs_disconnect(bd_addr_t bd_addr){ 281 switch (hsp_state){ 282 case HSP_ACTIVE: 283 printf("HSP_W4_USER_ACTION\n"); 284 hsp_state = HSP_W4_USER_ACTION; 285 hs_send_button_press = 1; 286 break; 287 case HSP_W4_RFCOMM_CONNECTED: 288 printf("HSP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN \n"); 289 hsp_state = HSP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN; 290 break; 291 default: 292 return; 293 } 294 hsp_run(); 295 } 296 297 298 void hsp_hs_set_microphone_gain(uint8_t gain){ 299 if (gain < 0 || gain >15) { 300 printf("Gain must be in interval [0..15], it is given %d\n", gain); 301 return; 302 } 303 hs_microphone_gain = gain; 304 hsp_run(); 305 } 306 307 // AG +VGS=5 [0..15] ; HS AT+VGM=6 | AG OK 308 void hsp_hs_set_speaker_gain(uint8_t gain){ 309 if (gain < 0 || gain >15) { 310 printf("Gain must be in interval [0..15], it is given %d\n", gain); 311 return; 312 } 313 hs_speaker_gain = gain; 314 hsp_run(); 315 } 316 317 318 static void hsp_run(void){ 319 int err; 320 321 if (hs_send_button_press){ 322 hs_send_button_press = 0; 323 err = hsp_hs_send_str_over_rfcomm(rfcomm_cid, HSP_HS_AT_CKPD); 324 if (err) { 325 hs_send_button_press = 1; 326 } 327 return; 328 } 329 330 switch (hsp_state){ 331 case HSP_SDP_QUERY_RFCOMM_CHANNEL: 332 hsp_state = HSP_W4_SDP_QUERY_COMPLETE; 333 sdp_query_rfcomm_channel_and_name_for_uuid(remote, SDP_Headset_AG); 334 break; 335 336 case HSP_W2_CONNECT_SCO: 337 hsp_state = HSP_W4_SCO_CONNECTED; 338 break; 339 340 case HSP_W2_DISCONNECT_SCO: 341 hsp_state = HSP_W4_SCO_DISCONNECTED; 342 break; 343 344 case HSP_ACTIVE: 345 346 if (hs_microphone_gain >= 0){ 347 int gain = hs_microphone_gain; 348 hs_microphone_gain = -1; 349 char buffer[20]; 350 sprintf(buffer, "%s=%d\r\n", HSP_HS_MICROPHONE_GAIN, gain); 351 err = hsp_hs_send_str_over_rfcomm(rfcomm_cid, buffer); 352 if (err) { 353 hs_microphone_gain = gain; 354 } 355 break; 356 } 357 358 if (hs_speaker_gain >= 0){ 359 int gain = hs_speaker_gain; 360 hs_speaker_gain = -1; 361 char buffer[20]; 362 sprintf(buffer, "%s=%d\r\n", HSP_HS_SPEAKER_GAIN, gain); 363 err = hsp_hs_send_str_over_rfcomm(rfcomm_cid, buffer); 364 if (err) { 365 hs_speaker_gain = gain; 366 } 367 break; 368 } 369 370 break; 371 default: 372 break; 373 } 374 } 375 376 377 static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){ 378 // printf("packet_handler type %u, packet[0] %x\n", packet_type, packet[0]); 379 if (packet_type == RFCOMM_DATA_PACKET){ 380 // skip over leading newline 381 while (size > 0 && (packet[0] == '\n' || packet[0] == '\r')){ 382 size--; 383 packet++; 384 } 385 if (strncmp((char *)packet, HSP_AG_RING, strlen(HSP_AG_RING)) == 0){ 386 emit_event(HSP_SUBEVENT_RING, 0); 387 } else if (strncmp((char *)packet, HSP_AG_OK, strlen(HSP_AG_OK)) == 0){ 388 printf("OK RECEIVED\n"); 389 switch (hsp_state){ 390 case HSP_W4_RFCOMM_CONNECTED: 391 hsp_state = HSP_W2_CONNECT_SCO; 392 break; 393 case HSP_W4_USER_ACTION: 394 hsp_state = HSP_W2_DISCONNECT_SCO; 395 break; 396 default: 397 break; 398 } 399 } else if (strncmp((char *)packet, HSP_MICROPHONE_GAIN, strlen(HSP_MICROPHONE_GAIN)) == 0){ 400 uint8_t gain = (uint8_t)atoi((char*)&packet[strlen(HSP_MICROPHONE_GAIN)]); 401 emit_event(HSP_SUBEVENT_MICROPHONE_GAIN_CHANGED, gain); 402 403 } else if (strncmp((char *)packet, HSP_SPEAKER_GAIN, strlen(HSP_SPEAKER_GAIN)) == 0){ 404 uint8_t gain = (uint8_t)atoi((char*)&packet[strlen(HSP_SPEAKER_GAIN)]); 405 emit_event(HSP_SUBEVENT_SPEAKER_GAIN_CHANGED, gain); 406 } else { 407 if (!hsp_hs_callback) return; 408 // strip trailing newline 409 while (size > 0 && (packet[size-1] == '\n' || packet[size-1] == '\r')){ 410 size--; 411 } 412 // add trailing \0 413 packet[size] = 0; 414 // re-use incoming buffer to avoid reserving large buffers - ugly but efficient 415 uint8_t * event = packet - 3; 416 event[0] = HCI_EVENT_HSP_META; 417 event[1] = size + 1; 418 event[2] = HSP_SUBEVENT_AG_INDICATION; 419 (*hsp_hs_callback)(event, size+3); 420 } 421 hsp_run(); 422 return; 423 } 424 425 if (packet_type != HCI_EVENT_PACKET) return; 426 uint8_t event = packet[0]; 427 bd_addr_t event_addr; 428 uint16_t handle; 429 430 switch (event) { 431 case BTSTACK_EVENT_STATE: 432 // bt stack activated, get started 433 if (packet[2] == HCI_STATE_WORKING){ 434 printf("BTstack activated, get started .\n"); 435 } 436 hsp_hs_callback(packet, size); 437 break; 438 439 case HCI_EVENT_PIN_CODE_REQUEST: 440 // inform about pin code request 441 printf("Pin code request - using '0000'\n\r"); 442 bt_flip_addr(event_addr, &packet[2]); 443 hci_send_cmd(&hci_pin_code_request_reply, &event_addr, 4, "0000"); 444 break; 445 case HCI_EVENT_SYNCHRONOUS_CONNECTION_COMPLETE:{ 446 int index = 2; 447 uint8_t status = packet[index++]; 448 sco_handle = READ_BT_16(packet, index); 449 index+=2; 450 bd_addr_t address; 451 memcpy(address, &packet[index], 6); 452 index+=6; 453 uint8_t link_type = packet[index++]; 454 uint8_t transmission_interval = packet[index++]; // measured in slots 455 uint8_t retransmission_interval = packet[index++];// measured in slots 456 uint16_t rx_packet_length = READ_BT_16(packet, index); // measured in bytes 457 index+=2; 458 uint16_t tx_packet_length = READ_BT_16(packet, index); // measured in bytes 459 index+=2; 460 uint8_t air_mode = packet[index]; 461 462 if (status != 0){ 463 log_error("(e)SCO Connection failed, status %u", status); 464 emit_event_audio_connected(status, sco_handle); 465 break; 466 } 467 switch (link_type){ 468 case 0x00: 469 printf("SCO Connection established. \n"); 470 if (transmission_interval != 0) log_error("SCO Connection: transmission_interval not zero: %d.", transmission_interval); 471 if (retransmission_interval != 0) log_error("SCO Connection: retransmission_interval not zero: %d.", retransmission_interval); 472 if (rx_packet_length != 0) log_error("SCO Connection: rx_packet_length not zero: %d.", rx_packet_length); 473 if (tx_packet_length != 0) log_error("SCO Connection: tx_packet_length not zero: %d.", tx_packet_length); 474 break; 475 case 0x02: 476 printf("eSCO Connection established. \n"); 477 break; 478 default: 479 log_error("(e)SCO reserved link_type 0x%2x", link_type); 480 break; 481 } 482 log_info("sco_handle 0x%2x, address %s, transmission_interval %u slots, retransmission_interval %u slots, " 483 " rx_packet_length %u bytes, tx_packet_length %u bytes, air_mode 0x%2x (0x02 == CVSD)", sco_handle, 484 bd_addr_to_str(address), transmission_interval, retransmission_interval, rx_packet_length, tx_packet_length, air_mode); 485 486 if (hsp_state == HSP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN){ 487 hsp_state = HSP_W2_DISCONNECT_SCO; 488 break; 489 } 490 491 // forward event to app 492 hsp_hs_callback(packet, size); 493 494 hsp_state = HSP_ACTIVE; 495 emit_event_audio_connected(0, sco_handle); 496 break; 497 } 498 499 case RFCOMM_EVENT_INCOMING_CONNECTION: 500 // data: event (8), len(8), address(48), channel (8), rfcomm_cid (16) 501 if (hsp_state != HSP_IDLE) return; 502 503 bt_flip_addr(event_addr, &packet[2]); 504 rfcomm_cid = READ_BT_16(packet, 9); 505 printf("RFCOMM channel %u requested for %s\n", packet[8], bd_addr_to_str(event_addr)); 506 rfcomm_accept_connection(rfcomm_cid); 507 508 hsp_state = HSP_W4_RFCOMM_CONNECTED; 509 break; 510 511 case RFCOMM_EVENT_OPEN_CHANNEL_COMPLETE: 512 printf("RFCOMM_EVENT_OPEN_CHANNEL_COMPLETE packet_handler type %u, packet[0] %x\n", packet_type, packet[0]); 513 // data: event(8), len(8), status (8), address (48), handle(16), server channel(8), rfcomm_cid(16), max frame size(16) 514 if (packet[2]) { 515 printf("RFCOMM channel open failed, status %u\n", packet[2]); 516 hsp_hs_reset_state(); 517 emit_event(HSP_SUBEVENT_AUDIO_CONNECTION_COMPLETE, packet[2]); 518 hs_outgoing_connection = 0; 519 } else { 520 // data: event(8) , len(8), status (8), address (48), handle (16), server channel(8), rfcomm_cid(16), max frame size(16) 521 rfcomm_handle = READ_BT_16(packet, 9); 522 rfcomm_cid = READ_BT_16(packet, 12); 523 mtu = READ_BT_16(packet, 14); 524 printf("RFCOMM channel open succeeded. New RFCOMM Channel ID %u, max frame size %u\n", rfcomm_cid, mtu); 525 526 if (hs_outgoing_connection){ 527 hs_outgoing_connection = 0; 528 hs_send_button_press = 1; 529 } 530 531 switch (hsp_state){ 532 case HSP_W4_RFCOMM_CONNECTED: 533 hsp_state = HSP_W2_CONNECT_SCO; 534 break; 535 case HSP_W4_CONNECTION_ESTABLISHED_TO_SHUTDOWN: 536 hsp_state = HSP_W2_DISCONNECT_RFCOMM; 537 break; 538 default: 539 break; 540 } 541 } 542 break; 543 case DAEMON_EVENT_HCI_PACKET_SENT: 544 case HCI_EVENT_NUMBER_OF_COMPLETED_PACKETS: 545 case RFCOMM_EVENT_CREDITS: 546 hsp_hs_callback(packet, size); 547 break; 548 549 case HCI_EVENT_DISCONNECTION_COMPLETE: 550 printf("HCI_EVENT_DISCONNECTION_COMPLETE \n"); 551 // if (hsp_state != HSP_W4_SCO_DISCONNECTED){ 552 // printf("received gap disconnect in wrong hsp state\n"); 553 // } 554 handle = READ_BT_16(packet,3); 555 if (handle == sco_handle){ 556 sco_handle = 0; 557 hsp_state = HSP_W2_DISCONNECT_RFCOMM; 558 printf(" HSP_W2_DISCONNECT_RFCOMM\n"); 559 break; 560 } 561 break; 562 case RFCOMM_EVENT_CHANNEL_CLOSED: 563 printf("RFCOMM_EVENT_CHANNEL_CLOSED\n"); 564 // if (hsp_state != HSP_W4_RFCOMM_DISCONNECTED){ 565 // printf("received RFCOMM disconnect in wrong hsp state\n"); 566 // } 567 printf("RFCOMM channel closed\n"); 568 hsp_hs_reset_state(); 569 emit_event(HSP_SUBEVENT_AUDIO_DISCONNECTION_COMPLETE,0); 570 break; 571 default: 572 break; 573 } 574 hsp_run(); 575 } 576 577 static void handle_query_rfcomm_event(sdp_query_event_t * event, void * context){ 578 sdp_query_rfcomm_service_event_t * ve; 579 sdp_query_complete_event_t * ce; 580 581 switch (event->type){ 582 case SDP_QUERY_RFCOMM_SERVICE: 583 ve = (sdp_query_rfcomm_service_event_t*) event; 584 channel_nr = ve->channel_nr; 585 printf("** Service name: '%s', RFCOMM port %u\n", ve->service_name, channel_nr); 586 break; 587 case SDP_QUERY_COMPLETE: 588 ce = (sdp_query_complete_event_t*) event; 589 590 if (channel_nr > 0){ 591 hsp_state = HSP_W4_RFCOMM_CONNECTED; 592 printf("RFCOMM create channel.\n"); 593 rfcomm_create_channel(remote, channel_nr, NULL); 594 break; 595 } 596 hsp_hs_reset_state(); 597 printf("Service not found, status %u.\n", ce->status); 598 exit(0); 599 break; 600 } 601 } 602 603 void hsp_hs_press_button(void){ 604 hs_send_button_press = 1; 605 hsp_run(); 606 } 607 608 609 610 611