/******************************************************************************
*
* Copyright 2000-2012 Broadcom Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
//
// A2DP API
//
#ifndef A2DP_API_H
#define A2DP_API_H
#include <inttypes.h>
#include "a2dp_constants.h"
#include "a2dp_error_codes.h"
#include "sdp_api.h"
/*****************************************************************************
* constants
****************************************************************************/
//
// |MAX_PCM_FRAME_NUM_PER_TICK| controls how many buffers we can hold in
// the A2DP buffer queues during temporary link congestion.
//
#ifndef MAX_PCM_FRAME_NUM_PER_TICK
#define MAX_PCM_FRAME_NUM_PER_TICK 14
#endif
/* the return values from A2DP_BitsSet() */
#define A2DP_SET_ONE_BIT 1 /* one and only one bit is set */
#define A2DP_SET_ZERO_BIT 0 /* all bits clear */
#define A2DP_SET_MULTL_BIT 2 /* multiple bits are set */
/*****************************************************************************
* type definitions
****************************************************************************/
/* This data type is used in A2DP_FindService() to initialize the SDP database
* to hold the result service search. */
typedef struct {
uint32_t db_len; /* Length, in bytes, of the discovery database */
uint16_t num_attr; /* The number of attributes in p_attrs */
uint16_t* p_attrs; /* The attributes filter. If NULL, A2DP API sets the
* attribute filter
* to be ATTR_ID_SERVICE_CLASS_ID_LIST,
* ATTR_ID_BT_PROFILE_DESC_LIST,
* ATTR_ID_SUPPORTED_FEATURES, ATTR_ID_SERVICE_NAME and
* ATTR_ID_PROVIDER_NAME.
* If not NULL, the input is taken as the filter. */
} tA2DP_SDP_DB_PARAMS;
/* This data type is used in tA2DP_FIND_CBACK to report the result of the SDP
* discovery process. */
typedef struct {
uint16_t service_len; /* Length, in bytes, of the service name */
uint16_t provider_len; /* Length, in bytes, of the provider name */
char* p_service_name; /* Pointer the service name. This character string may
* not be null terminated.
* Use the service_len parameter to safely copy this
* string */
char* p_provider_name; /* Pointer the provider name. This character string
* may not be null terminated.
* Use the provider_len parameter to safely copy this
* string */
uint16_t features; /* Profile supported features */
uint16_t avdt_version; /* AVDTP protocol version */
} tA2DP_Service;
/* This is the callback to notify the result of the SDP discovery process. */
typedef void(tA2DP_FIND_CBACK)(bool found, tA2DP_Service* p_service,
const RawAddress& peer_address);
/*****************************************************************************
* external function declarations
****************************************************************************/
/******************************************************************************
*
* Function A2DP_AddRecord
*
* Description This function is called by a server application to add
* SRC or SNK information to an SDP record. Prior to
* calling this function the application must call
* SDP_CreateRecord() to create an SDP record.
*
* Input Parameters:
* service_uuid: Indicates SRC or SNK.
*
* p_service_name: Pointer to a null-terminated character
* string containing the service name.
*
* p_provider_name: Pointer to a null-terminated character
* string containing the provider name.
*
* features: Profile supported features.
*
* sdp_handle: SDP handle returned by SDP_CreateRecord().
*
* Output Parameters:
* None.
*
* Returns A2DP_SUCCESS if function execution succeeded,
* A2DP_INVALID_PARAMS if bad parameters are given.
* A2DP_FAIL if function execution failed.
*
*****************************************************************************/
extern tA2DP_STATUS A2DP_AddRecord(uint16_t service_uuid, char* p_service_name,
char* p_provider_name, uint16_t features,
uint32_t sdp_handle);
/******************************************************************************
*
* Function A2DP_FindService
*
* Description This function is called by a client application to
* perform service discovery and retrieve SRC or SNK SDP
* record information from a server. Information is
* returned for the first service record found on the
* server that matches the service UUID. The callback
* function will be executed when service discovery is
* complete. There can only be one outstanding call to
* A2DP_FindService() at a time; the application must wait
* for the callback before it makes another call to
* the function.
*
* Input Parameters:
* service_uuid: Indicates SRC or SNK.
*
* bd_addr: BD address of the peer device.
*
* p_db: Pointer to the information to initialize
* the discovery database.
*
* p_cback: Pointer to the A2DP_FindService()
* callback function.
*
* Output Parameters:
* None.
*
* Returns A2DP_SUCCESS if function execution succeeded,
* A2DP_INVALID_PARAMS if bad parameters are given.
* A2DP_BUSY if discovery is already in progress.
* A2DP_FAIL if function execution failed.
*
*****************************************************************************/
extern tA2DP_STATUS A2DP_FindService(uint16_t service_uuid,
const RawAddress& bd_addr,
tA2DP_SDP_DB_PARAMS* p_db,
tA2DP_FIND_CBACK* p_cback);
/******************************************************************************
*
* Function A2DP_GetAvdtpVersion()
*
* Description Gets the local version of AVDTP
*
* Returns The local version of AVDTP.
*
*****************************************************************************/
extern uint16_t A2DP_GetAvdtpVersion(void);
/******************************************************************************
*
* Function A2DP_SetTraceLevel
*
* Description Sets the trace level for A2D. If 0xff is passed, the
* current trace level is returned.
*
* Input Parameters:
* new_level: The level to set the A2DP tracing to:
* 0xff-returns the current setting.
* 0-turns off tracing.
* >= 1-Errors.
* >= 2-Warnings.
* >= 3-APIs.
* >= 4-Events.
* >= 5-Debug.
*
* Returns The new trace level or current trace level if
* the input parameter is 0xff.
*
*****************************************************************************/
extern uint8_t A2DP_SetTraceLevel(uint8_t new_level);
/******************************************************************************
* Function A2DP_BitsSet
*
* Description Check the given num for the number of bits set
* Returns A2DP_SET_ONE_BIT, if one and only one bit is set
* A2DP_SET_ZERO_BIT, if all bits clear
* A2DP_SET_MULTL_BIT, if multiple bits are set
*****************************************************************************/
extern uint8_t A2DP_BitsSet(uint64_t num);
// Initializes the A2DP control block.
void A2DP_Init(void);
#endif // A2DP_API_H