1 /****************************************************************************** 2 * 3 * Copyright (C) 2006-2012 Broadcom Corporation 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at: 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 * 17 ******************************************************************************/ 18 19 /****************************************************************************** 20 * 21 * nterface to AVRCP Application Programming Interface 22 * 23 ******************************************************************************/ 24 #ifndef AVRC_API_H 25 #define AVRC_API_H 26 #include "bt_target.h" 27 #include "avct_api.h" 28 #include "sdp_api.h" 29 #include "avrc_defs.h" 30 31 /***************************************************************************** 32 ** constants 33 *****************************************************************************/ 34 35 /* API function return value result codes. */ 36 #define AVRC_SUCCESS AVCT_SUCCESS /* 0 Function successful */ 37 #define AVRC_NO_RESOURCES AVCT_NO_RESOURCES /* 1 Not enough resources */ 38 #define AVRC_BAD_HANDLE AVCT_BAD_HANDLE /* 2 Bad handle */ 39 #define AVRC_PID_IN_USE AVCT_PID_IN_USE /* 3 PID already in use */ 40 #define AVRC_NOT_OPEN AVCT_NOT_OPEN /* 4 Connection not open */ 41 #define AVRC_MSG_TOO_BIG 5 /* 5 the message length exceed the MTU of the browsing channel */ 42 #define AVRC_FAIL 0x10 /* 0x10 generic failure */ 43 #define AVRC_BAD_PARAM 0x11 /* 0x11 bad parameter */ 44 45 /* Control role - same as AVCT_TARGET/AVCT_CONTROL */ 46 #define AVRC_CT_TARGET 1 /* target */ 47 #define AVRC_CT_CONTROL 2 /* controller */ 48 #define AVRC_CT_PASSIVE 4 /* If conflict, allow the other side to succeed */ 49 50 /* Connection role */ 51 #define AVRC_CONN_INT AVCT_INT /* initiator */ 52 #define AVRC_CONN_ACP AVCT_ACP /* Acceptor */ 53 54 55 /* AVRC CTRL events */ 56 /* AVRC_OPEN_IND_EVT event is sent when the connection is successfully opened. 57 * This eventis sent in response to an AVRC_Open(). */ 58 #define AVRC_OPEN_IND_EVT 0 59 60 /* AVRC_CLOSE_IND_EVT event is sent when a connection is closed. 61 * This event can result from a call to AVRC_Close() or when the peer closes 62 * the connection. It is also sent when a connection attempted through 63 * AVRC_Open() fails. */ 64 #define AVRC_CLOSE_IND_EVT 1 65 66 /* AVRC_CONG_IND_EVT event indicates that AVCTP is congested and cannot send 67 * any more messages. */ 68 #define AVRC_CONG_IND_EVT 2 69 70 /* AVRC_UNCONG_IND_EVT event indicates that AVCTP is uncongested and ready to 71 * send messages. */ 72 #define AVRC_UNCONG_IND_EVT 3 73 74 /* AVRC_BROWSE_OPEN_IND_EVT event is sent when the browse channel is successfully opened. 75 * This eventis sent in response to an AVRC_Open() or AVRC_OpenBrowse() . */ 76 #define AVRC_BROWSE_OPEN_IND_EVT 4 77 78 /* AVRC_BROWSE_CLOSE_IND_EVT event is sent when a browse channel is closed. 79 * This event can result from a call to AVRC_Close(), AVRC_CloseBrowse() or when the peer closes 80 * the connection. It is also sent when a connection attempted through 81 * AVRC_OpenBrowse() fails. */ 82 #define AVRC_BROWSE_CLOSE_IND_EVT 5 83 84 /* AVRC_BROWSE_CONG_IND_EVT event indicates that AVCTP browse channel is congested and cannot send 85 * any more messages. */ 86 #define AVRC_BROWSE_CONG_IND_EVT 6 87 88 /* AVRC_BROWSE_UNCONG_IND_EVT event indicates that AVCTP browse channel is uncongested and ready to 89 * send messages. */ 90 #define AVRC_BROWSE_UNCONG_IND_EVT 7 91 92 /* AVRC_CMD_TIMEOUT_EVT event indicates timeout waiting for AVRC command response from the peer */ 93 #define AVRC_CMD_TIMEOUT_EVT 8 94 95 /* Supported categories */ 96 #define AVRC_SUPF_CT_CAT1 0x0001 /* Category 1 */ 97 #define AVRC_SUPF_CT_CAT2 0x0002 /* Category 2 */ 98 #define AVRC_SUPF_CT_CAT3 0x0004 /* Category 3 */ 99 #define AVRC_SUPF_CT_CAT4 0x0008 /* Category 4 */ 100 #define AVRC_SUPF_CT_BROWSE 0x0040 /* Browsing */ 101 102 #define AVRC_SUPF_TG_CAT1 0x0001 /* Category 1 */ 103 #define AVRC_SUPF_TG_CAT2 0x0002 /* Category 2 */ 104 #define AVRC_SUPF_TG_CAT3 0x0004 /* Category 3 */ 105 #define AVRC_SUPF_TG_CAT4 0x0008 /* Category 4 */ 106 #define AVRC_SUPF_TG_APP_SETTINGS 0x0010 /* Player Application Settings */ 107 #define AVRC_SUPF_TG_GROUP_NAVI 0x0020 /* Group Navigation */ 108 #define AVRC_SUPF_TG_BROWSE 0x0040 /* Browsing */ 109 #define AVRC_SUPF_TG_MULTI_PLAYER 0x0080 /* Muliple Media Player */ 110 111 #define AVRC_META_SUCCESS AVRC_SUCCESS 112 #define AVRC_META_FAIL AVRC_FAIL 113 #define AVRC_METADATA_CMD 0x0000 114 #define AVRC_METADATA_RESP 0x0001 115 116 117 118 /***************************************************************************** 119 ** data type definitions 120 *****************************************************************************/ 121 122 /* This data type is used in AVRC_FindService() to initialize the SDP database 123 * to hold the result service search. */ 124 typedef struct 125 { 126 UINT32 db_len; /* Length, in bytes, of the discovery database */ 127 tSDP_DISCOVERY_DB *p_db; /* Pointer to the discovery database */ 128 UINT16 num_attr;/* The number of attributes in p_attrs */ 129 UINT16 *p_attrs; /* The attributes filter. If NULL, AVRCP API sets the attribute filter 130 * to be ATTR_ID_SERVICE_CLASS_ID_LIST, ATTR_ID_BT_PROFILE_DESC_LIST, 131 * ATTR_ID_SUPPORTED_FEATURES, ATTR_ID_SERVICE_NAME and ATTR_ID_PROVIDER_NAME. 132 * If not NULL, the input is taken as the filter. */ 133 } tAVRC_SDP_DB_PARAMS; 134 135 /* This callback function returns service discovery information to the 136 * application after the AVRC_FindService() API function is called. The 137 * implementation of this callback function must copy the p_service_name 138 * and p_provider_name parameters passed to it as they are not guaranteed 139 * to remain after the callback function exits. */ 140 typedef void (tAVRC_FIND_CBACK) (UINT16 status); 141 142 143 /* This is the control callback function. This function passes events 144 * listed in Table 20 to the application. */ 145 typedef void (tAVRC_CTRL_CBACK) (UINT8 handle, UINT8 event, UINT16 result, 146 BD_ADDR peer_addr); 147 148 149 /* This is the message callback function. It is executed when AVCTP has 150 * a message packet ready for the application. The implementation of this 151 * callback function must copy the tAVRC_MSG structure passed to it as it 152 * is not guaranteed to remain after the callback function exits. */ 153 typedef void (tAVRC_MSG_CBACK) (UINT8 handle, UINT8 label, UINT8 opcode, 154 tAVRC_MSG *p_msg); 155 156 typedef struct 157 { 158 tAVRC_CTRL_CBACK *p_ctrl_cback; /* pointer to application control callback */ 159 tAVRC_MSG_CBACK *p_msg_cback; /* pointer to application message callback */ 160 UINT32 company_id; /* the company ID */ 161 UINT8 conn; /* Connection role (Initiator/acceptor) */ 162 UINT8 control; /* Control role (Control/Target) */ 163 } tAVRC_CONN_CB; 164 165 166 167 /***************************************************************************** 168 ** external function declarations 169 *****************************************************************************/ 170 #ifdef __cplusplus 171 extern "C" 172 { 173 #endif 174 175 /****************************************************************************** 176 ** 177 ** Function AVRC_AddRecord 178 ** 179 ** Description This function is called to build an AVRCP SDP record. 180 ** Prior to calling this function the application must 181 ** call SDP_CreateRecord() to create an SDP record. 182 ** 183 ** Input Parameters: 184 ** service_uuid: Indicates TG(UUID_SERVCLASS_AV_REM_CTRL_TARGET) 185 ** or CT(UUID_SERVCLASS_AV_REMOTE_CONTROL) 186 ** 187 ** p_service_name: Pointer to a null-terminated character 188 ** string containing the service name. 189 ** If service name is not used set this to NULL. 190 ** 191 ** p_provider_name: Pointer to a null-terminated character 192 ** string containing the provider name. 193 ** If provider name is not used set this to NULL. 194 ** 195 ** categories: Supported categories. 196 ** 197 ** sdp_handle: SDP handle returned by SDP_CreateRecord(). 198 ** 199 ** Output Parameters: 200 ** None. 201 ** 202 ** Returns AVRC_SUCCESS if successful. 203 ** AVRC_NO_RESOURCES if not enough resources to build the SDP record. 204 ** 205 ******************************************************************************/ 206 extern UINT16 AVRC_AddRecord(UINT16 service_uuid, char *p_service_name, 207 char *p_provider_name, UINT16 categories, UINT32 sdp_handle); 208 209 /****************************************************************************** 210 ** 211 ** Function AVRC_FindService 212 ** 213 ** Description This function is called by the application to perform service 214 ** discovery and retrieve AVRCP SDP record information from a 215 ** peer device. Information is returned for the first service 216 ** record found on the server that matches the service UUID. 217 ** The callback function will be executed when service discovery 218 ** is complete. There can only be one outstanding call to 219 ** AVRC_FindService() at a time; the application must wait for 220 ** the callback before it makes another call to the function. 221 ** The application is responsible for allocating memory for the 222 ** discovery database. It is recommended that the size of the 223 ** discovery database be at least 300 bytes. The application 224 ** can deallocate the memory after the callback function has 225 ** executed. 226 ** 227 ** Input Parameters: 228 ** service_uuid: Indicates TG(UUID_SERVCLASS_AV_REM_CTRL_TARGET) 229 ** or CT(UUID_SERVCLASS_AV_REMOTE_CONTROL) 230 ** 231 ** bd_addr: BD address of the peer device. 232 ** 233 ** p_db: SDP discovery database parameters. 234 ** 235 ** p_cback: Pointer to the callback function. 236 ** 237 ** Output Parameters: 238 ** None. 239 ** 240 ** Returns AVRC_SUCCESS if successful. 241 ** AVRC_BAD_PARAMS if discovery database parameters are invalid. 242 ** AVRC_NO_RESOURCES if there are not enough resources to 243 ** perform the service search. 244 ** 245 ******************************************************************************/ 246 extern UINT16 AVRC_FindService(UINT16 service_uuid, BD_ADDR bd_addr, 247 tAVRC_SDP_DB_PARAMS *p_db, tAVRC_FIND_CBACK *p_cback); 248 249 /****************************************************************************** 250 ** 251 ** Function AVRC_Open 252 ** 253 ** Description This function is called to open a connection to AVCTP. 254 ** The connection can be either an initiator or acceptor, as 255 ** determined by the p_ccb->stream parameter. 256 ** The connection can be a target, a controller or for both role, 257 ** as determined by the p_ccb->control parameter. 258 ** By definition, a target connection is an acceptor connection 259 ** that waits for an incoming AVCTP connection from the peer. 260 ** The connection remains available to the application until 261 ** the application closes it by calling AVRC_Close(). The 262 ** application does not need to reopen the connection after an 263 ** AVRC_CLOSE_IND_EVT is received. 264 ** 265 ** Input Parameters: 266 ** p_ccb->company_id: Company Identifier. 267 ** 268 ** p_ccb->p_ctrl_cback: Pointer to control callback function. 269 ** 270 ** p_ccb->p_msg_cback: Pointer to message callback function. 271 ** 272 ** p_ccb->conn: AVCTP connection role. This is set to 273 ** AVCTP_INT for initiator connections and AVCTP_ACP 274 ** for acceptor connections. 275 ** 276 ** p_ccb->control: Control role. This is set to 277 ** AVRC_CT_TARGET for target connections, AVRC_CT_CONTROL 278 ** for control connections or (AVRC_CT_TARGET|AVRC_CT_CONTROL) 279 ** for connections that support both roles. 280 ** 281 ** peer_addr: BD address of peer device. This value is 282 ** only used for initiator connections; for acceptor 283 ** connections it can be set to NULL. 284 ** 285 ** Output Parameters: 286 ** p_handle: Pointer to handle. This parameter is only 287 ** valid if AVRC_SUCCESS is returned. 288 ** 289 ** Returns AVRC_SUCCESS if successful. 290 ** AVRC_NO_RESOURCES if there are not enough resources to open 291 ** the connection. 292 ** 293 ******************************************************************************/ 294 extern UINT16 AVRC_Open(UINT8 *p_handle, tAVRC_CONN_CB *p_ccb, 295 BD_ADDR_PTR peer_addr); 296 297 /****************************************************************************** 298 ** 299 ** Function AVRC_Close 300 ** 301 ** Description Close a connection opened with AVRC_Open(). 302 ** This function is called when the 303 ** application is no longer using a connection. 304 ** 305 ** Input Parameters: 306 ** handle: Handle of this connection. 307 ** 308 ** Output Parameters: 309 ** None. 310 ** 311 ** Returns AVRC_SUCCESS if successful. 312 ** AVRC_BAD_HANDLE if handle is invalid. 313 ** 314 ******************************************************************************/ 315 extern UINT16 AVRC_Close(UINT8 handle); 316 317 /****************************************************************************** 318 ** 319 ** Function AVRC_OpenBrowse 320 ** 321 ** Description This function is called to open a browsing connection to AVCTP. 322 ** The connection can be either an initiator or acceptor, as 323 ** determined by the conn_role. 324 ** The handle is returned by a previous call to AVRC_Open. 325 ** 326 ** Returns AVRC_SUCCESS if successful. 327 ** AVRC_NO_RESOURCES if there are not enough resources to open 328 ** the connection. 329 ** 330 ******************************************************************************/ 331 extern UINT16 AVRC_OpenBrowse(UINT8 handle, UINT8 conn_role); 332 333 /****************************************************************************** 334 ** 335 ** Function AVRC_CloseBrowse 336 ** 337 ** Description Close a connection opened with AVRC_OpenBrowse(). 338 ** This function is called when the 339 ** application is no longer using a connection. 340 ** 341 ** Returns AVRC_SUCCESS if successful. 342 ** AVRC_BAD_HANDLE if handle is invalid. 343 ** 344 ******************************************************************************/ 345 extern UINT16 AVRC_CloseBrowse(UINT8 handle); 346 347 /****************************************************************************** 348 ** 349 ** Function AVRC_MsgReq 350 ** 351 ** Description This function is used to send the AVRCP byte stream in p_pkt 352 ** down to AVCTP. 353 ** 354 ** It is expected that p_pkt->offset is at least AVCT_MSG_OFFSET 355 ** p_pkt->layer_specific is AVCT_DATA_CTRL or AVCT_DATA_BROWSE 356 ** p_pkt->event is AVRC_OP_VENDOR, AVRC_OP_PASS_THRU or AVRC_OP_BROWSING 357 ** The above BT_HDR settings are set by the AVRC_Bld* functions. 358 ** 359 ** Returns AVRC_SUCCESS if successful. 360 ** AVRC_BAD_HANDLE if handle is invalid. 361 ** 362 ******************************************************************************/ 363 extern UINT16 AVRC_MsgReq (UINT8 handle, UINT8 label, UINT8 ctype, BT_HDR *p_pkt); 364 365 /****************************************************************************** 366 ** 367 ** Function AVRC_UnitCmd 368 ** 369 ** Description Send a UNIT INFO command to the peer device. This 370 ** function can only be called for controller role connections. 371 ** Any response message from the peer is passed back through 372 ** the tAVRC_MSG_CBACK callback function. 373 ** 374 ** Input Parameters: 375 ** handle: Handle of this connection. 376 ** 377 ** label: Transaction label. 378 ** 379 ** Output Parameters: 380 ** None. 381 ** 382 ** Returns AVRC_SUCCESS if successful. 383 ** AVRC_BAD_HANDLE if handle is invalid. 384 ** 385 ******************************************************************************/ 386 extern UINT16 AVRC_UnitCmd(UINT8 handle, UINT8 label); 387 388 /****************************************************************************** 389 ** 390 ** Function AVRC_SubCmd 391 ** 392 ** Description Send a SUBUNIT INFO command to the peer device. This 393 ** function can only be called for controller role connections. 394 ** Any response message from the peer is passed back through 395 ** the tAVRC_MSG_CBACK callback function. 396 ** 397 ** Input Parameters: 398 ** handle: Handle of this connection. 399 ** 400 ** label: Transaction label. 401 ** 402 ** page: Specifies which part of the subunit type table 403 ** is requested. For AVRCP it is typically zero. 404 ** Value range is 0-7. 405 ** 406 ** Output Parameters: 407 ** None. 408 ** 409 ** Returns AVRC_SUCCESS if successful. 410 ** AVRC_BAD_HANDLE if handle is invalid. 411 ** 412 ******************************************************************************/ 413 extern UINT16 AVRC_SubCmd(UINT8 handle, UINT8 label, UINT8 page); 414 415 416 /****************************************************************************** 417 ** 418 ** Function AVRC_PassCmd 419 ** 420 ** Description Send a PASS THROUGH command to the peer device. This 421 ** function can only be called for controller role connections. 422 ** Any response message from the peer is passed back through 423 ** the tAVRC_MSG_CBACK callback function. 424 ** 425 ** Input Parameters: 426 ** handle: Handle of this connection. 427 ** 428 ** label: Transaction label. 429 ** 430 ** p_msg: Pointer to PASS THROUGH message structure. 431 ** 432 ** Output Parameters: 433 ** None. 434 ** 435 ** Returns AVRC_SUCCESS if successful. 436 ** AVRC_BAD_HANDLE if handle is invalid. 437 ** 438 ******************************************************************************/ 439 extern UINT16 AVRC_PassCmd(UINT8 handle, UINT8 label, tAVRC_MSG_PASS *p_msg); 440 441 /****************************************************************************** 442 ** 443 ** Function AVRC_PassRsp 444 ** 445 ** Description Send a PASS THROUGH response to the peer device. This 446 ** function can only be called for target role connections. 447 ** This function must be called when a PASS THROUGH command 448 ** message is received from the peer through the 449 ** tAVRC_MSG_CBACK callback function. 450 ** 451 ** Input Parameters: 452 ** handle: Handle of this connection. 453 ** 454 ** label: Transaction label. Must be the same value as 455 ** passed with the command message in the callback function. 456 ** 457 ** p_msg: Pointer to PASS THROUGH message structure. 458 ** 459 ** Output Parameters: 460 ** None. 461 ** 462 ** Returns AVRC_SUCCESS if successful. 463 ** AVRC_BAD_HANDLE if handle is invalid. 464 ** 465 ******************************************************************************/ 466 extern UINT16 AVRC_PassRsp(UINT8 handle, UINT8 label, tAVRC_MSG_PASS *p_msg); 467 468 469 /****************************************************************************** 470 ** 471 ** Function AVRC_VendorCmd 472 ** 473 ** Description Send a VENDOR DEPENDENT command to the peer device. This 474 ** function can only be called for controller role connections. 475 ** Any response message from the peer is passed back through 476 ** the tAVRC_MSG_CBACK callback function. 477 ** 478 ** Input Parameters: 479 ** handle: Handle of this connection. 480 ** 481 ** label: Transaction label. 482 ** 483 ** p_msg: Pointer to VENDOR DEPENDENT message structure. 484 ** 485 ** Output Parameters: 486 ** None. 487 ** 488 ** Returns AVRC_SUCCESS if successful. 489 ** AVRC_BAD_HANDLE if handle is invalid. 490 ** 491 ******************************************************************************/ 492 extern UINT16 AVRC_VendorCmd(UINT8 handle, UINT8 label, tAVRC_MSG_VENDOR *p_msg); 493 494 495 /****************************************************************************** 496 ** 497 ** Function AVRC_VendorRsp 498 ** 499 ** Description Send a VENDOR DEPENDENT response to the peer device. This 500 ** function can only be called for target role connections. 501 ** This function must be called when a VENDOR DEPENDENT 502 ** command message is received from the peer through the 503 ** tAVRC_MSG_CBACK callback function. 504 ** 505 ** Input Parameters: 506 ** handle: Handle of this connection. 507 ** 508 ** label: Transaction label. Must be the same value as 509 ** passed with the command message in the callback function. 510 ** 511 ** p_msg: Pointer to VENDOR DEPENDENT message structure. 512 ** 513 ** Output Parameters: 514 ** None. 515 ** 516 ** Returns AVRC_SUCCESS if successful. 517 ** AVRC_BAD_HANDLE if handle is invalid. 518 ** 519 ******************************************************************************/ 520 extern UINT16 AVRC_VendorRsp(UINT8 handle, UINT8 label, tAVRC_MSG_VENDOR *p_msg); 521 522 523 /****************************************************************************** 524 ** 525 ** Function AVRC_SetTraceLevel 526 ** 527 ** Description Sets the trace level for AVRC. If 0xff is passed, the 528 ** current trace level is returned. 529 ** 530 ** Input Parameters: 531 ** new_level: The level to set the AVRC tracing to: 532 ** 0xff-returns the current setting. 533 ** 0-turns off tracing. 534 ** >= 1-Errors. 535 ** >= 2-Warnings. 536 ** >= 3-APIs. 537 ** >= 4-Events. 538 ** >= 5-Debug. 539 ** 540 ** Returns The new trace level or current trace level if 541 ** the input parameter is 0xff. 542 ** 543 ******************************************************************************/ 544 extern UINT8 AVRC_SetTraceLevel (UINT8 new_level); 545 546 /******************************************************************************* 547 ** 548 ** Function AVRC_Init 549 ** 550 ** Description This function is called at stack startup to allocate the 551 ** control block (if using dynamic memory), and initializes the 552 ** control block and tracing level. 553 ** 554 ** Returns void 555 ** 556 *******************************************************************************/ 557 extern void AVRC_Init(void); 558 559 /******************************************************************************* 560 ** 561 ** Function AVRC_ParsCommand 562 ** 563 ** Description This function is used to parse the received command. 564 ** 565 ** Returns AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully. 566 ** Otherwise, the error code defined by AVRCP 1.4 567 ** 568 *******************************************************************************/ 569 extern tAVRC_STS AVRC_ParsCommand (tAVRC_MSG *p_msg, tAVRC_COMMAND *p_result, 570 UINT8 *p_buf, UINT16 buf_len); 571 572 /******************************************************************************* 573 ** 574 ** Function AVRC_ParsResponse 575 ** 576 ** Description This function is used to parse the received response. 577 ** 578 ** Returns AVRC_STS_NO_ERROR, if the message in p_data is parsed successfully. 579 ** Otherwise, the error code defined by AVRCP 1.4 580 ** 581 *******************************************************************************/ 582 extern tAVRC_STS AVRC_ParsResponse (tAVRC_MSG *p_msg, tAVRC_RESPONSE *p_result, 583 UINT8 *p_buf, UINT16 buf_len); 584 585 /******************************************************************************* 586 ** 587 ** Function AVRC_BldCommand 588 ** 589 ** Description This function builds the given AVRCP command to the given 590 ** GKI buffer 591 ** 592 ** Returns AVRC_STS_NO_ERROR, if the command is built successfully 593 ** Otherwise, the error code. 594 ** 595 *******************************************************************************/ 596 extern tAVRC_STS AVRC_BldCommand( tAVRC_COMMAND *p_cmd, BT_HDR **pp_pkt); 597 598 /******************************************************************************* 599 ** 600 ** Function AVRC_BldResponse 601 ** 602 ** Description This function builds the given AVRCP response to the given 603 ** GKI buffer 604 ** 605 ** Returns AVRC_STS_NO_ERROR, if the response is built successfully 606 ** Otherwise, the error code. 607 ** 608 *******************************************************************************/ 609 extern tAVRC_STS AVRC_BldResponse( UINT8 handle, tAVRC_RESPONSE *p_rsp, BT_HDR **pp_pkt); 610 611 /************************************************************************** 612 ** 613 ** Function AVRC_IsValidAvcType 614 ** 615 ** Description Check if correct AVC type is specified 616 ** 617 ** Returns returns TRUE if it is valid 618 ** 619 ** 620 *******************************************************************************/ 621 extern BOOLEAN AVRC_IsValidAvcType(UINT8 pdu_id, UINT8 avc_type); 622 623 /******************************************************************************* 624 ** 625 ** Function AVRC_IsValidPlayerAttr 626 ** 627 ** Description Check if the given attrib value is a valid one 628 ** 629 ** 630 ** Returns returns TRUE if it is valid 631 ** 632 *******************************************************************************/ 633 extern BOOLEAN AVRC_IsValidPlayerAttr(UINT8 attr); 634 635 #ifdef __cplusplus 636 } 637 #endif 638 639 #endif /* AVRC_API_H */ 640
