xref: /system/bt/stack/include/btm_api.h

/******************************************************************************
 *
 *  Copyright (C) 1999-2012 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.
 *
 ******************************************************************************/

/******************************************************************************
 *
 *  This file contains the Bluetooth Manager (BTM) API function external
 *  definitions.
 *
 ******************************************************************************/
#ifndef BTM_API_H
#define BTM_API_H

#include "bt_target.h"
#include "hcidefs.h"
#include "sdp_api.h"

#include "smp_api.h"

#include "btm_api_types.h"

#ifdef __cplusplus
extern "C" {
#endif

/*****************************************************************************
 *  DEVICE CONTROL and COMMON
 ****************************************************************************/

/*****************************************************************************
 *  EXTERNAL FUNCTION DECLARATIONS
 ****************************************************************************/

/*****************************************************************************
 *  DEVICE CONTROL and COMMON FUNCTIONS
 ****************************************************************************/

/*******************************************************************************
 *
 * Function         BTM_DeviceReset
 *
 * Description      This function is called to reset the controller.  The
 *                  Callback function if provided is called when startup of the
 *                  device has completed.
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTM_DeviceReset(tBTM_CMPL_CB* p_cb);

/*******************************************************************************
 *
 * Function         BTM_IsDeviceUp
 *
 * Description      This function is called to check if the device is up.
 *
 * Returns          true if device is up, else false
 *
 ******************************************************************************/
extern bool BTM_IsDeviceUp(void);

/*******************************************************************************
 *
 * Function         BTM_SetLocalDeviceName
 *
 * Description      This function is called to set the local device name.
 *
 * Returns          BTM_CMD_STARTED if successful, otherwise an error
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetLocalDeviceName(char* p_name);

/*******************************************************************************
 *
 * Function         BTM_SetDeviceClass
 *
 * Description      This function is called to set the local device class
 *
 * Returns          BTM_SUCCESS if successful, otherwise an error
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetDeviceClass(DEV_CLASS dev_class);

/*******************************************************************************
 *
 * Function         BTM_ReadLocalDeviceName
 *
 * Description      This function is called to read the local device name.
 *
 * Returns          status of the operation
 *                  If success, BTM_SUCCESS is returned and p_name points stored
 *                              local device name
 *                  If BTM doesn't store local device name, BTM_NO_RESOURCES is
 *                              is returned and p_name is set to NULL
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_ReadLocalDeviceName(char** p_name);

/*******************************************************************************
 *
 * Function         BTM_ReadLocalDeviceNameFromController
 *
 * Description      Get local device name from controller. Do not use cached
 *                  name (used to get chip-id prior to btm reset complete).
 *
 * Returns          BTM_CMD_STARTED if successful, otherwise an error
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_ReadLocalDeviceNameFromController(
    tBTM_CMPL_CB* p_rln_cmpl_cback);

/*******************************************************************************
 *
 * Function         BTM_ReadDeviceClass
 *
 * Description      This function is called to read the local device class
 *
 * Returns          pointer to the device class
 *
 ******************************************************************************/
extern uint8_t* BTM_ReadDeviceClass(void);

/*******************************************************************************
 *
 * Function         BTM_ReadLocalFeatures
 *
 * Description      This function is called to read the local features
 *
 * Returns          pointer to the local features string
 *
 ******************************************************************************/
extern uint8_t* BTM_ReadLocalFeatures(void);

/*******************************************************************************
 *
 * Function         BTM_RegisterForDeviceStatusNotif
 *
 * Description      This function is called to register for device status
 *                  change notifications.
 *
 * Returns          pointer to previous caller's callback function or NULL if
 *                  first registration.
 *
 ******************************************************************************/
extern tBTM_DEV_STATUS_CB* BTM_RegisterForDeviceStatusNotif(
    tBTM_DEV_STATUS_CB* p_cb);

/*******************************************************************************
 *
 * Function         BTM_RegisterForVSEvents
 *
 * Description      This function is called to register/deregister for vendor
 *                  specific HCI events.
 *
 *                  If is_register=true, then the function will be registered;
 *                  otherwise the function will be deregistered.
 *
 * Returns          BTM_SUCCESS if successful,
 *                  BTM_BUSY if maximum number of callbacks have already been
 *                           registered.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_RegisterForVSEvents(tBTM_VS_EVT_CB* p_cb,
                                           bool is_register);

/*******************************************************************************
 *
 * Function         BTM_VendorSpecificCommand
 *
 * Description      Send a vendor specific HCI command to the controller.
 *
 ******************************************************************************/
extern void BTM_VendorSpecificCommand(uint16_t opcode, uint8_t param_len,
                                      uint8_t* p_param_buf,
                                      tBTM_VSC_CMPL_CB* p_cb);

/*******************************************************************************
 *
 * Function         BTM_AllocateSCN
 *
 * Description      Look through the Server Channel Numbers for a free one to be
 *                  used with an RFCOMM connection.
 *
 * Returns          Allocated SCN number or 0 if none.
 *
 ******************************************************************************/
extern uint8_t BTM_AllocateSCN(void);

/*******************************************************************************
 *
 * Function         BTM_TryAllocateSCN
 *
 * Description      Try to allocate a fixed server channel
 *
 * Returns          Returns true if server channel was available
 *
 ******************************************************************************/
extern bool BTM_TryAllocateSCN(uint8_t scn);

/*******************************************************************************
 *
 * Function         BTM_FreeSCN
 *
 * Description      Free the specified SCN.
 *
 * Returns          true if successful, false if SCN is not in use or invalid
 *
 ******************************************************************************/
extern bool BTM_FreeSCN(uint8_t scn);

/*******************************************************************************
 *
 * Function         BTM_SetTraceLevel
 *
 * Description      This function sets the trace level for BTM.  If called with
 *                  a value of 0xFF, it simply returns the current trace level.
 *
 * Returns          The new or current trace level
 *
 ******************************************************************************/
extern uint8_t BTM_SetTraceLevel(uint8_t new_level);

/*******************************************************************************
 *
 * Function         BTM_WritePageTimeout
 *
 * Description      Send HCI Wite Page Timeout.
 *
 ******************************************************************************/
extern void BTM_WritePageTimeout(uint16_t timeout);

/*******************************************************************************
 *
 * Function         BTM_WriteVoiceSettings
 *
 * Description      Send HCI Write Voice Settings command.
 *                  See hcidefs.h for settings bitmask values.
 *
 ******************************************************************************/
extern void BTM_WriteVoiceSettings(uint16_t settings);

/*******************************************************************************
 *
 * Function         BTM_EnableTestMode
 *
 * Description      Send HCI the enable device under test command.
 *
 *                  Note: Controller can only be taken out of this mode by
 *                      resetting the controller.
 *
 * Returns
 *      BTM_SUCCESS         Command sent.
 *      BTM_NO_RESOURCES    If out of resources to send the command.
 *
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_EnableTestMode(void);

/*******************************************************************************
 * DEVICE DISCOVERY FUNCTIONS - Inquiry, Remote Name, Discovery, Class of Device
 ******************************************************************************/

/*******************************************************************************
 *
 * Function         BTM_SetDiscoverability
 *
 * Description      This function is called to set the device into or out of
 *                  discoverable mode. Discoverable mode means inquiry
 *                  scans are enabled.  If a value of '0' is entered for window
 *                  or interval, the default values are used.
 *
 * Returns          BTM_SUCCESS if successful
 *                  BTM_BUSY if a setting of the filter is already in progress
 *                  BTM_NO_RESOURCES if couldn't get a memory pool buffer
 *                  BTM_ILLEGAL_VALUE if a bad parameter was detected
 *                  BTM_WRONG_MODE if the device is not up.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetDiscoverability(uint16_t inq_mode, uint16_t window,
                                          uint16_t interval);

/*******************************************************************************
 *
 * Function         BTM_ReadDiscoverability
 *
 * Description      This function is called to read the current discoverability
 *                  mode of the device.
 *
 * Output Params:   p_window - current inquiry scan duration
 *                  p_interval - current inquiry scan interval
 *
 * Returns          BTM_NON_DISCOVERABLE, BTM_LIMITED_DISCOVERABLE, or
 *                  BTM_GENERAL_DISCOVERABLE
 *
 ******************************************************************************/
extern uint16_t BTM_ReadDiscoverability(uint16_t* p_window,
                                        uint16_t* p_interval);

/*******************************************************************************
 *
 * Function         BTM_SetPeriodicInquiryMode
 *
 * Description      This function is called to set the device periodic inquiry
 *                  mode. If the duration is zero, the periodic inquiry mode is
 *                  cancelled.
 *
 * Parameters:      p_inqparms - pointer to the inquiry information
 *                      mode - GENERAL or LIMITED inquiry
 *                      duration - length in 1.28 sec intervals (If '0', the
 *                                 inquiry is CANCELLED)
 *                      max_resps - maximum amount of devices to search for
 *                                  before ending the inquiry
 *                      filter_cond_type - BTM_CLR_INQUIRY_FILTER,
 *                                         BTM_FILTER_COND_DEVICE_CLASS, or
 *                                         BTM_FILTER_COND_BD_ADDR
 *                      filter_cond - value for the filter (based on
 *                                                          filter_cond_type)
 *
 *                  max_delay - maximum amount of time between successive
 *                              inquiries
 *                  min_delay - minimum amount of time between successive
 *                              inquiries
 *                  p_results_cb - callback returning pointer to results
 *                              (tBTM_INQ_RESULTS)
 *
 * Returns          BTM_CMD_STARTED if successfully started
 *                  BTM_ILLEGAL_VALUE if a bad parameter is detected
 *                  BTM_NO_RESOURCES if could not allocate a message buffer
 *                  BTM_SUCCESS - if cancelling the periodic inquiry
 *                  BTM_BUSY - if an inquiry is already active
 *                  BTM_WRONG_MODE if the device is not up.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetPeriodicInquiryMode(
    tBTM_INQ_PARMS* p_inqparms, uint16_t max_delay, uint16_t min_delay,
    tBTM_INQ_RESULTS_CB* p_results_cb);

/*******************************************************************************
 *
 * Function         BTM_StartInquiry
 *
 * Description      This function is called to start an inquiry.
 *
 * Parameters:      p_inqparms - pointer to the inquiry information
 *                      mode - GENERAL or LIMITED inquiry
 *                      duration - length in 1.28 sec intervals (If '0', the
 *                                 inquiry is CANCELLED)
 *                      max_resps - maximum amount of devices to search for
 *                                  before ending the inquiry
 *                      filter_cond_type - BTM_CLR_INQUIRY_FILTER,
 *                                         BTM_FILTER_COND_DEVICE_CLASS, or
 *                                         BTM_FILTER_COND_BD_ADDR
 *                      filter_cond - value for the filter (based on
 *                                                          filter_cond_type)
 *
 *                  p_results_cb  - Pointer to the callback routine which gets
 *                                called upon receipt of an inquiry result. If
 *                                this field is NULL, the application is not
 *                                notified.
 *
 *                  p_cmpl_cb   - Pointer to the callback routine which gets
 *                                called upon completion.  If this field is
 *                                NULL, the application is not notified when
 *                                completed.
 * Returns          tBTM_STATUS
 *                  BTM_CMD_STARTED if successfully initiated
 *                  BTM_BUSY if already in progress
 *                  BTM_ILLEGAL_VALUE if parameter(s) are out of range
 *                  BTM_NO_RESOURCES if could not allocate resources to start
 *                                   the command
 *                  BTM_WRONG_MODE if the device is not up.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_StartInquiry(tBTM_INQ_PARMS* p_inqparms,
                                    tBTM_INQ_RESULTS_CB* p_results_cb,
                                    tBTM_CMPL_CB* p_cmpl_cb);

/*******************************************************************************
 *
 * Function         BTM_IsInquiryActive
 *
 * Description      Return a bit mask of the current inquiry state
 *
 * Returns          BTM_INQUIRY_INACTIVE if inactive (0)
 *                  BTM_LIMITED_INQUIRY_ACTIVE if a limted inquiry is active
 *                  BTM_GENERAL_INQUIRY_ACTIVE if a general inquiry is active
 *                  BTM_PERIODIC_INQUIRY_ACTIVE if a periodic inquiry is active
 *
 ******************************************************************************/
extern uint16_t BTM_IsInquiryActive(void);

/*******************************************************************************
 *
 * Function         BTM_CancelInquiry
 *
 * Description      This function cancels an inquiry if active
 *
 * Returns          BTM_SUCCESS if successful
 *                  BTM_NO_RESOURCES if could not allocate a message buffer
 *                  BTM_WRONG_MODE if the device is not up.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_CancelInquiry(void);

/*******************************************************************************
 *
 * Function         BTM_CancelPeriodicInquiry
 *
 * Description      This function cancels a periodic inquiry
 *
 * Returns
 *                  BTM_NO_RESOURCES if could not allocate a message buffer
 *                  BTM_SUCCESS - if cancelling the periodic inquiry
 *                  BTM_WRONG_MODE if the device is not up.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_CancelPeriodicInquiry(void);

/*******************************************************************************
 *
 * Function         BTM_SetConnectability
 *
 * Description      This function is called to set the device into or out of
 *                  connectable mode. Discoverable mode means page scans are
 *                  enabled.
 *
 * Returns          BTM_SUCCESS if successful
 *                  BTM_ILLEGAL_VALUE if a bad parameter is detected
 *                  BTM_NO_RESOURCES if could not allocate a message buffer
 *                  BTM_WRONG_MODE if the device is not up.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetConnectability(uint16_t page_mode, uint16_t window,
                                         uint16_t interval);

/*******************************************************************************
 *
 * Function         BTM_ReadConnectability
 *
 * Description      This function is called to read the current discoverability
 *                  mode of the device.
 * Output Params    p_window - current page scan duration
 *                  p_interval - current time between page scans
 *
 * Returns          BTM_NON_CONNECTABLE or BTM_CONNECTABLE
 *
 ******************************************************************************/
extern uint16_t BTM_ReadConnectability(uint16_t* p_window,
                                       uint16_t* p_interval);

/*******************************************************************************
 *
 * Function         BTM_SetInquiryMode
 *
 * Description      This function is called to set standard, with RSSI
 *                  mode or extended of the inquiry for local device.
 *
 * Input Params:    BTM_INQ_RESULT_STANDARD, BTM_INQ_RESULT_WITH_RSSI or
 *                  BTM_INQ_RESULT_EXTENDED
 *
 * Returns          BTM_SUCCESS if successful
 *                  BTM_NO_RESOURCES if couldn't get a memory pool buffer
 *                  BTM_ILLEGAL_VALUE if a bad parameter was detected
 *                  BTM_WRONG_MODE if the device is not up.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetInquiryMode(uint8_t mode);

/*******************************************************************************
 *
 * Function         BTM_SetInquiryScanType
 *
 * Description      This function is called to set the iquiry scan-type to
 *                  standard or interlaced.
 *
 * Input Params:    BTM_SCAN_TYPE_STANDARD or BTM_SCAN_TYPE_INTERLACED
 *
 * Returns          BTM_SUCCESS if successful
 *                  BTM_MODE_UNSUPPORTED if not a 1.2 device
 *                  BTM_WRONG_MODE if the device is not up.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetInquiryScanType(uint16_t scan_type);

/*******************************************************************************
 *
 * Function         BTM_SetPageScanType
 *
 * Description      This function is called to set the page scan-type to
 *                  standard or interlaced.
 *
 * Input Params:    BTM_SCAN_TYPE_STANDARD or BTM_SCAN_TYPE_INTERLACED
 *
 * Returns          BTM_SUCCESS if successful
 *                  BTM_MODE_UNSUPPORTED if not a 1.2 device
 *                  BTM_WRONG_MODE if the device is not up.
 *
 ******************************************************************************/

extern tBTM_STATUS BTM_SetPageScanType(uint16_t scan_type);

/*******************************************************************************
 *
 * Function         BTM_ReadRemoteDeviceName
 *
 * Description      This function initiates a remote device HCI command to the
 *                  controller and calls the callback when the process has
 *                  completed.
 *
 * Input Params:    remote_bda      - device address of name to retrieve
 *                  p_cb            - callback function called when
 *                                    BTM_CMD_STARTED is returned.
 *                                    A pointer to tBTM_REMOTE_DEV_NAME is
 *                                    passed to the callback.
 *
 * Returns
 *                  BTM_CMD_STARTED is returned if the request was successfully
 *                                  sent to HCI.
 *                  BTM_BUSY if already in progress
 *                  BTM_UNKNOWN_ADDR if device address is bad
 *                  BTM_NO_RESOURCES if resources could not be allocated to
 *                                   start the command
 *                  BTM_WRONG_MODE if the device is not up.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_ReadRemoteDeviceName(BD_ADDR remote_bda,
                                            tBTM_CMPL_CB* p_cb,
                                            tBT_TRANSPORT transport);

/*******************************************************************************
 *
 * Function         BTM_CancelRemoteDeviceName
 *
 * Description      This function initiates the cancel request for the specified
 *                  remote device.
 *
 * Input Params:    None
 *
 * Returns
 *                  BTM_CMD_STARTED is returned if the request was successfully
 *                                  sent to HCI.
 *                  BTM_NO_RESOURCES if resources could not be allocated to
 *                                   start the command
 *                  BTM_WRONG_MODE if there is no active remote name request.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_CancelRemoteDeviceName(void);

/*******************************************************************************
 *
 * Function         BTM_ReadRemoteVersion
 *
 * Description      This function is called to read a remote device's version
 *
 * Returns          BTM_SUCCESS if successful, otherwise an error
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_ReadRemoteVersion(BD_ADDR addr, uint8_t* lmp_version,
                                         uint16_t* manufacturer,
                                         uint16_t* lmp_sub_version);

/*******************************************************************************
 *
 * Function         BTM_ReadRemoteFeatures
 *
 * Description      This function is called to read a remote device's
 *                  supported features mask (features mask located at page 0)
 *
 *                  Note: The size of device features mask page is
 *                  BTM_FEATURE_BYTES_PER_PAGE bytes.
 *
 * Returns          pointer to the remote supported features mask
 *
 ******************************************************************************/
extern uint8_t* BTM_ReadRemoteFeatures(BD_ADDR addr);

/*******************************************************************************
 *
 * Function         BTM_ReadRemoteExtendedFeatures
 *
 * Description      This function is called to read a specific extended features
 *                  page of the remote device
 *
 *                  Note1: The size of device features mask page is
 *                  BTM_FEATURE_BYTES_PER_PAGE bytes.
 *                  Note2: The valid device features mask page number depends on
 *                  the remote device capabilities. It is expected to be in the
 *                  range [0 - BTM_EXT_FEATURES_PAGE_MAX].

 * Returns          pointer to the remote extended features mask
 *                  or NULL if page_number is not valid
 *
 ******************************************************************************/
extern uint8_t* BTM_ReadRemoteExtendedFeatures(BD_ADDR addr,
                                               uint8_t page_number);

/*******************************************************************************
 *
 * Function         BTM_ReadNumberRemoteFeaturesPages
 *
 * Description      This function is called to retrieve the number of feature
 *                  pages read from the remote device
 *
 * Returns          number of features pages read from the remote device
 *
 ******************************************************************************/
extern uint8_t BTM_ReadNumberRemoteFeaturesPages(BD_ADDR addr);

/*******************************************************************************
 *
 * Function         BTM_ReadAllRemoteFeatures
 *
 * Description      Read all the features of the remote device
 *
 * Returns          pointer to the byte[0] of the page[0] of the remote device
 *                  feature mask.
 *
 * Note:            the function returns the pointer to the array of the size
 *                  BTM_FEATURE_BYTES_PER_PAGE * (BTM_EXT_FEATURES_PAGE_MAX + 1)
 *
 ******************************************************************************/
extern uint8_t* BTM_ReadAllRemoteFeatures(BD_ADDR addr);

/*******************************************************************************
 *
 * Function         BTM_InqDbRead
 *
 * Description      This function looks through the inquiry database for a match
 *                  based on Bluetooth Device Address. This is the application's
 *                  interface to get the inquiry details of a specific BD
 *                  address.
 *
 * Returns          pointer to entry, or NULL if not found
 *
 ******************************************************************************/
extern tBTM_INQ_INFO* BTM_InqDbRead(const BD_ADDR p_bda);

/*******************************************************************************
 *
 * Function         BTM_InqDbFirst
 *
 * Description      This function looks through the inquiry database for the
 *                  first used entry, and returns that. This is used in
 *                  conjunction with BTM_InqDbNext by applications as a way to
 *                  walk through the inquiry database.
 *
 * Returns          pointer to first in-use entry, or NULL if DB is empty
 *
 ******************************************************************************/
extern tBTM_INQ_INFO* BTM_InqDbFirst(void);

/*******************************************************************************
 *
 * Function         BTM_InqDbNext
 *
 * Description      This function looks through the inquiry database for the
 *                  next used entry, and returns that.  If the input parameter
 *                  is NULL, the first entry is returned.
 *
 * Returns          pointer to next in-use entry, or NULL if no more found.
 *
 ******************************************************************************/
extern tBTM_INQ_INFO* BTM_InqDbNext(tBTM_INQ_INFO* p_cur);

/*******************************************************************************
 *
 * Function         BTM_ClearInqDb
 *
 * Description      This function is called to clear out a device or all devices
 *                  from the inquiry database.
 *
 * Parameter        p_bda - (input) BD_ADDR ->  Address of device to clear
 *                                              (NULL clears all entries)
 *
 * Returns          BTM_BUSY if an inquiry, get remote name, or event filter
 *                          is active, otherwise BTM_SUCCESS
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_ClearInqDb(BD_ADDR p_bda);

/*******************************************************************************
 *
 * Function         BTM_ReadInquiryRspTxPower
 *
 * Description      This command will read the inquiry Transmit Power level used
 *                  to transmit the FHS and EIR data packets.
 *                  This can be used directly in the Tx Power Level EIR data
 *                  type.
 *
 * Returns          BTM_SUCCESS if successful
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_ReadInquiryRspTxPower(tBTM_CMPL_CB* p_cb);

/*******************************************************************************
 *
 * Function         BTM_StartDiscovery
 *
 * Description      This function is called by an application (or profile)
 *                  when it wants to trigger an service discovery using the
 *                  BTM's discovery database.
 *
 * Returns          tBTM_STATUS
 *                      BTM_CMD_STARTED if the discovery was initiated
 *                      BTM_BUSY if one is already in progress
 *                      BTM_UNKNOWN_ADDR if no addresses are in the INQ DB
 *                      BTM_ERR_PROCESSING if err initiating the command
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_StartDiscovery(tBTM_CMPL_CB* p_cmpl_cb,
                                      BD_ADDR_PTR p_rem_addr);

/*******************************************************************************
 *
 * Function         BTM_FindAttribute
 *
 * Description      This function is called by an application (or profile)
 *                  when it wants to see if an attribute exists in the BTM
 *                  discovery database.
 *
 * Returns          Pointer to matching record, or NULL
 *
 ******************************************************************************/
extern tSDP_DISC_REC* BTM_FindAttribute(uint16_t attr_id,
                                        tSDP_DISC_REC* p_start_rec);

/*******************************************************************************
 *
 * Function         BTM_FindService
 *
 * Description      This function is called by an application (or profile)
 *                  when it wants to see if a service exists in the BTM
 *                  discovery database.
 *
 * Returns          Pointer to matching record, or NULL
 *
 ******************************************************************************/
extern tSDP_DISC_REC* BTM_FindService(uint16_t service_uuid,
                                      tSDP_DISC_REC* p_start_rec);

/*******************************************************************************
 *
 * Function         BTM_SetDiscoveryParams
 *
 * Description      This function is called to set the BTM default discovery
 *                  parameters. These UUID and attribute filters are used during
 *                  the call to BTM_StartDiscovery.
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTM_SetDiscoveryParams(uint16_t num_uuid, tSDP_UUID* p_uuid_list,
                                   uint16_t num_attr, uint16_t* p_attr_list);

/*****************************************************************************
 *  ACL CHANNEL MANAGEMENT FUNCTIONS
 ****************************************************************************/
/*******************************************************************************
 *
 * Function         BTM_SetLinkPolicy
 *
 * Description      Create and send HCI "Write Policy Set" command
 *
 * Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetLinkPolicy(BD_ADDR remote_bda, uint16_t* settings);

/*******************************************************************************
 *
 * Function         BTM_SetDefaultLinkPolicy
 *
 * Description      Set the default value for HCI "Write Policy Set" command
 *                  to use when an ACL link is created.
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTM_SetDefaultLinkPolicy(uint16_t settings);

/*******************************************************************************
 *
 * Function         BTM_SetDefaultLinkSuperTout
 *
 * Description      Set the default value for HCI "Write Link Supervision
 *                  Timeout" command to use when an ACL link is created.
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTM_SetDefaultLinkSuperTout(uint16_t timeout);

/*******************************************************************************
 *
 * Function         BTM_SetLinkSuperTout
 *
 * Description      Create and send HCI "Write Link Supervision Timeout" command
 *
 * Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetLinkSuperTout(BD_ADDR remote_bda, uint16_t timeout);
/*******************************************************************************
 *
 * Function         BTM_GetLinkSuperTout
 *
 * Description      Read the link supervision timeout value of the connection
 *
 * Returns          status of the operation
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_GetLinkSuperTout(BD_ADDR remote_bda,
                                        uint16_t* p_timeout);

/*******************************************************************************
 *
 * Function         BTM_IsAclConnectionUp
 *
 * Description      This function is called to check if an ACL connection exists
 *                  to a specific remote BD Address.
 *
 * Returns          true if connection is up, else false.
 *
 ******************************************************************************/
extern bool BTM_IsAclConnectionUp(BD_ADDR remote_bda, tBT_TRANSPORT transport);

/*******************************************************************************
 *
 * Function         BTM_GetRole
 *
 * Description      This function is called to get the role of the local device
 *                  for the ACL connection with the specified remote device
 *
 * Returns          BTM_SUCCESS if connection exists.
 *                  BTM_UNKNOWN_ADDR if no active link with bd addr specified
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_GetRole(BD_ADDR remote_bd_addr, uint8_t* p_role);

/*******************************************************************************
 *
 * Function         BTM_SwitchRole
 *
 * Description      This function is called to switch role between master and
 *                  slave.  If role is already set it will do nothing.  If the
 *                  command was initiated, the callback function is called upon
 *                  completion.
 *
 * Returns          BTM_SUCCESS if already in specified role.
 *                  BTM_CMD_STARTED if command issued to controller.
 *                  BTM_NO_RESOURCES if memory couldn't be allocated to issue
 *                                   the command
 *                  BTM_UNKNOWN_ADDR if no active link with bd addr specified
 *                  BTM_MODE_UNSUPPORTED if the local device does not support
 *                                       role switching
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SwitchRole(BD_ADDR remote_bd_addr, uint8_t new_role,
                                  tBTM_CMPL_CB* p_cb);

/*******************************************************************************
 *
 * Function         BTM_ReadRSSI
 *
 * Description      This function is called to read the link policy settings.
 *                  The address of link policy results are returned in the
 *                  callback. (tBTM_RSSI_RESULTS)
 *
 * Returns          BTM_CMD_STARTED if command issued to controller.
 *                  BTM_NO_RESOURCES if memory couldn't be allocated to issue
 *                                   the command
 *                  BTM_UNKNOWN_ADDR if no active link with bd addr specified
 *                  BTM_BUSY if command is already in progress
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_ReadRSSI(const BD_ADDR remote_bda, tBTM_CMPL_CB* p_cb);

/*******************************************************************************
 *
 * Function         BTM_ReadTxPower
 *
 * Description      This function is called to read the current connection
 *                  TX power of the connection. The TX power level results
 *                  are returned in the callback.
 *                  (tBTM_RSSI_RESULTS)
 *
 * Returns          BTM_CMD_STARTED if command issued to controller.
 *                  BTM_NO_RESOURCES if memory couldn't be allocated to issue
 *                                   the command
 *                  BTM_UNKNOWN_ADDR if no active link with bd addr specified
 *                  BTM_BUSY if command is already in progress
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_ReadTxPower(BD_ADDR remote_bda, tBT_TRANSPORT transport,
                                   tBTM_CMPL_CB* p_cb);

/*******************************************************************************
 *
 * Function         BTM_ReadLinkQuality
 *
 * Description      This function is called to read the link quality.
 *                  The value of the link quality is returned in the callback.
 *                  (tBTM_LINK_QUALITY_RESULTS)
 *
 * Returns          BTM_CMD_STARTED if command issued to controller.
 *                  BTM_NO_RESOURCES if memory couldn't be allocated to issue
 *                                   the command
 *                  BTM_UNKNOWN_ADDR if no active link with bd addr specified
 *                  BTM_BUSY if command is already in progress
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_ReadLinkQuality(BD_ADDR remote_bda, tBTM_CMPL_CB* p_cb);

/*******************************************************************************
 *
 * Function         BTM_RegBusyLevelNotif
 *
 * Description      This function is called to register a callback to receive
 *                  busy level change events.
 *
 * Returns          BTM_SUCCESS if successfully registered, otherwise error
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_RegBusyLevelNotif(tBTM_BL_CHANGE_CB* p_cb,
                                         uint8_t* p_level,
                                         tBTM_BL_EVENT_MASK evt_mask);

/*******************************************************************************
 *
 * Function         BTM_AclRegisterForChanges
 *
 * Description      This function is called to register a callback to receive
 *                  ACL database change events, i.e. new connection or removed.
 *
 * Returns          BTM_SUCCESS if successfully initiated, otherwise error
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_AclRegisterForChanges(tBTM_ACL_DB_CHANGE_CB* p_cb);

/*******************************************************************************
 *
 * Function         BTM_GetNumAclLinks
 *
 * Description      This function is called to count the number of
 *                  ACL links that are active.
 *
 * Returns          uint16_t Number of active ACL links
 *
 ******************************************************************************/
extern uint16_t BTM_GetNumAclLinks(void);

/*******************************************************************************
 *
 * Function         BTM_SetQoS
 *
 * Description      This function is called to setup QoS
 *
 * Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetQoS(BD_ADDR bd, FLOW_SPEC* p_flow,
                              tBTM_CMPL_CB* p_cb);

/*****************************************************************************
 *  (e)SCO CHANNEL MANAGEMENT FUNCTIONS
 ****************************************************************************/
/*******************************************************************************
 *
 * Function         BTM_CreateSco
 *
 * Description      This function is called to create an SCO connection. If the
 *                  "is_orig" flag is true, the connection will be originated,
 *                  otherwise BTM will wait for the other side to connect.
 *
 * Returns          BTM_UNKNOWN_ADDR if the ACL connection is not up
 *                  BTM_BUSY         if another SCO being set up to
 *                                   the same BD address
 *                  BTM_NO_RESOURCES if the max SCO limit has been reached
 *                  BTM_CMD_STARTED  if the connection establishment is started.
 *                                   In this case, "*p_sco_inx" is filled in
 *                                   with the sco index used for the connection.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_CreateSco(BD_ADDR remote_bda, bool is_orig,
                                 uint16_t pkt_types, uint16_t* p_sco_inx,
                                 tBTM_SCO_CB* p_conn_cb,
                                 tBTM_SCO_CB* p_disc_cb);

/*******************************************************************************
 *
 * Function         BTM_RemoveSco
 *
 * Description      This function is called to remove a specific SCO connection.
 *
 * Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_RemoveSco(uint16_t sco_inx);

/*******************************************************************************
 *
 * Function         BTM_SetScoPacketTypes
 *
 * Description      This function is called to set the packet types used for
 *                  a specific SCO connection,
 *
 * Parameters       pkt_types - One or more of the following
 *                  BTM_SCO_PKT_TYPES_MASK_HV1
 *                  BTM_SCO_PKT_TYPES_MASK_HV2
 *                  BTM_SCO_PKT_TYPES_MASK_HV3
 *                  BTM_SCO_PKT_TYPES_MASK_EV3
 *                  BTM_SCO_PKT_TYPES_MASK_EV4
 *                  BTM_SCO_PKT_TYPES_MASK_EV5
 *
 *                  BTM_SCO_LINK_ALL_MASK   - enables all supported types
 *
 * Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetScoPacketTypes(uint16_t sco_inx, uint16_t pkt_types);

/*******************************************************************************
 *
 * Function         BTM_ReadScoPacketTypes
 *
 * Description      This function is read the packet types used for a specific
 *                  SCO connection.
 *
 * Returns       One or more of the following (bitmask)
 *                  BTM_SCO_PKT_TYPES_MASK_HV1
 *                  BTM_SCO_PKT_TYPES_MASK_HV2
 *                  BTM_SCO_PKT_TYPES_MASK_HV3
 *                  BTM_SCO_PKT_TYPES_MASK_EV3
 *                  BTM_SCO_PKT_TYPES_MASK_EV4
 *                  BTM_SCO_PKT_TYPES_MASK_EV5
 *
 * Returns          packet types supported for the connection
 *
 ******************************************************************************/
extern uint16_t BTM_ReadScoPacketTypes(uint16_t sco_inx);

/*******************************************************************************
 *
 * Function         BTM_ReadDeviceScoPacketTypes
 *
 * Description      This function is read the SCO packet types that
 *                  the device supports.
 *
 * Returns          packet types supported by the device.
 *
 ******************************************************************************/
extern uint16_t BTM_ReadDeviceScoPacketTypes(void);

/*******************************************************************************
 *
 * Function         BTM_ReadScoHandle
 *
 * Description      Reead the HCI handle used for a specific SCO connection,
 *
 * Returns          handle for the connection, or 0xFFFF if invalid SCO index.
 *
 ******************************************************************************/
extern uint16_t BTM_ReadScoHandle(uint16_t sco_inx);

/*******************************************************************************
 *
 * Function         BTM_ReadScoBdAddr
 *
 * Description      This function is read the remote BD Address for a specific
 *                  SCO connection,
 *
 * Returns          pointer to BD address or NULL if not known
 *
 ******************************************************************************/
extern uint8_t* BTM_ReadScoBdAddr(uint16_t sco_inx);

/*******************************************************************************
 *
 * Function         BTM_ReadScoDiscReason
 *
 * Description      This function is returns the reason why an (e)SCO connection
 *                  has been removed. It contains the value until read, or until
 *                  another (e)SCO connection has disconnected.
 *
 * Returns          HCI reason or BTM_INVALID_SCO_DISC_REASON if not set.
 *
 ******************************************************************************/
extern uint16_t BTM_ReadScoDiscReason(void);

/*******************************************************************************
 *
 * Function         BTM_SetEScoMode
 *
 * Description      This function sets up the negotiated parameters for SCO or
 *                  eSCO, and sets as the default mode used for calls to
 *                  BTM_CreateSco.  It can be called only when there are no
 *                  active (e)SCO links.
 *
 * Returns          BTM_SUCCESS if the successful.
 *                  BTM_BUSY if there are one or more active (e)SCO links.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetEScoMode(tBTM_SCO_TYPE sco_mode,
                                   tBTM_ESCO_PARAMS* p_parms);

/*******************************************************************************
 *
 * Function         BTM_SetWBSCodec
 *
 * Description      This function sends command to the controller to setup
 *                  WBS codec for the upcoming eSCO connection.
 *
 * Returns          BTM_SUCCESS.
 *
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetWBSCodec(tBTM_SCO_CODEC_TYPE codec_type);

/*******************************************************************************
 *
 * Function         BTM_RegForEScoEvts
 *
 * Description      This function registers a SCO event callback with the
 *                  specified instance.  It should be used to received
 *                  connection indication events and change of link parameter
 *                  events.
 *
 * Returns          BTM_SUCCESS if the successful.
 *                  BTM_ILLEGAL_VALUE if there is an illegal sco_inx
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_RegForEScoEvts(uint16_t sco_inx,
                                      tBTM_ESCO_CBACK* p_esco_cback);

/*******************************************************************************
 *
 * Function         BTM_ReadEScoLinkParms
 *
 * Description      This function returns the current eSCO link parameters for
 *                  the specified handle.  This can be called anytime a
 *                  connection is active, but is typically called after
 *                  receiving the SCO opened callback.
 *
 *                  Note: If called over a 1.1 controller, only the packet types
 *                        field has meaning.
 *                  Note: If the upper layer doesn't know the current sco index,
 *                  BTM_FIRST_ACTIVE_SCO_INDEX can be used as the first
 *                  parameter to find the first active SCO index
 *
 * Returns          BTM_SUCCESS if returned data is valid connection.
 *                  BTM_ILLEGAL_VALUE if no connection for specified sco_inx.
 *                  BTM_MODE_UNSUPPORTED if local controller does not support
 *                      1.2 specification.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_ReadEScoLinkParms(uint16_t sco_inx,
                                         tBTM_ESCO_DATA* p_parms);

/*******************************************************************************
 *
 * Function         BTM_ChangeEScoLinkParms
 *
 * Description      This function requests renegotiation of the parameters on
 *                  the current eSCO Link.  If any of the changes are accepted
 *                  by the controllers, the BTM_ESCO_CHG_EVT event is sent in
 *                  the tBTM_ESCO_CBACK function with the current settings of
 *                  the link. The callback is registered through the call to
 *                  BTM_SetEScoMode.
 *
 *
 * Returns          BTM_CMD_STARTED if command is successfully initiated.
 *                  BTM_ILLEGAL_VALUE if no connection for specified sco_inx.
 *                  BTM_NO_RESOURCES - not enough resources to initiate command.
 *                  BTM_MODE_UNSUPPORTED if local controller does not support
 *                      1.2 specification.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_ChangeEScoLinkParms(uint16_t sco_inx,
                                           tBTM_CHG_ESCO_PARAMS* p_parms);

/*******************************************************************************
 *
 * Function         BTM_EScoConnRsp
 *
 * Description      This function is called upon receipt of an (e)SCO connection
 *                  request event (BTM_ESCO_CONN_REQ_EVT) to accept or reject
 *                  the request. Parameters used to negotiate eSCO links.
 *                  If p_parms is NULL, then values set through BTM_SetEScoMode
 *                  are used.
 *                  If the link type of the incoming request is SCO, then only
 *                  the tx_bw, max_latency, content format, and packet_types are
 *                  valid.  The hci_status parameter should be
 *                  ([0x0] to accept, [0x0d..0x0f] to reject)
 *
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTM_EScoConnRsp(uint16_t sco_inx, uint8_t hci_status,
                            tBTM_ESCO_PARAMS* p_parms);

/*******************************************************************************
 *
 * Function         BTM_GetNumScoLinks
 *
 * Description      This function returns the number of active SCO links.
 *
 * Returns          uint8_t
 *
 ******************************************************************************/
extern uint8_t BTM_GetNumScoLinks(void);

/*****************************************************************************
 *  SECURITY MANAGEMENT FUNCTIONS
 ****************************************************************************/
/*******************************************************************************
 *
 * Function         BTM_SecRegister
 *
 * Description      Application manager calls this function to register for
 *                  security services.  There can be one and only one
 *                  application saving link keys.  BTM allows only first
 *                  registration.
 *
 * Returns          true if registered OK, else false
 *
 ******************************************************************************/
extern bool BTM_SecRegister(tBTM_APPL_INFO* p_cb_info);

/*******************************************************************************
 *
 * Function         BTM_SecRegisterLinkKeyNotificationCallback
 *
 * Description      Profiles can register to be notified when a new Link Key
 *                  is generated per connection.
 *
 * Returns          true if registered OK, else false
 *
 ******************************************************************************/
extern bool BTM_SecRegisterLinkKeyNotificationCallback(
    tBTM_LINK_KEY_CALLBACK* p_callback);

/*******************************************************************************
 *
 * Function         BTM_SecAddRmtNameNotifyCallback
 *
 * Description      Profiles can register to be notified when name of the
 *                  remote device is resolved (up to
 *                  BTM_SEC_MAX_RMT_NAME_CALLBACKS).
 *
 * Returns          true if registered OK, else false
 *
 ******************************************************************************/
extern bool BTM_SecAddRmtNameNotifyCallback(tBTM_RMT_NAME_CALLBACK* p_callback);

/*******************************************************************************
 *
 * Function         BTM_SecDeleteRmtNameNotifyCallback
 *
 * Description      A profile can deregister notification when a new Link Key
 *                  is generated per connection.
 *
 * Returns          true if OK, else false
 *
 ******************************************************************************/
extern bool BTM_SecDeleteRmtNameNotifyCallback(
    tBTM_RMT_NAME_CALLBACK* p_callback);

/*******************************************************************************
 *
 * Function         BTM_GetSecurityFlags
 *
 * Description      Get security flags for the device
 *
 * Returns          bool    true or false is device found
 *
 ******************************************************************************/
extern bool BTM_GetSecurityFlags(BD_ADDR bd_addr, uint8_t* p_sec_flags);

/*******************************************************************************
 *
 * Function         BTM_GetSecurityFlagsByTransport
 *
 * Description      Get security flags for the device on a particular transport
 *
 * Parameters      bd_addr: BD address of remote device
 *                  p_sec_flags : Out parameter to be filled with security
 *                                flags for the connection
 *                  transport :  Physical transport of the connection
 *                               (BR/EDR or LE)
 *
 * Returns          bool    true or false is device found
 *
 ******************************************************************************/
extern bool BTM_GetSecurityFlagsByTransport(BD_ADDR bd_addr,
                                            uint8_t* p_sec_flags,
                                            tBT_TRANSPORT transport);

/*******************************************************************************
 *
 * Function         BTM_ReadTrustedMask
 *
 * Description      Get trusted mask for the device
 *
 * Returns          NULL, if the device record is not found.
 *                  otherwise, the trusted mask
 *
 ******************************************************************************/
extern uint32_t* BTM_ReadTrustedMask(BD_ADDR bd_addr);

/*******************************************************************************
 *
 * Function         BTM_SetPinType
 *
 * Description      Set PIN type for the device.
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTM_SetPinType(uint8_t pin_type, PIN_CODE pin_code,
                           uint8_t pin_code_len);

/*******************************************************************************
 *
 * Function         BTM_SetPairableMode
 *
 * Description      Enable or disable pairing
 *
 * Parameters       allow_pairing - (true or false) whether or not the device
 *                      allows pairing.
 *                  connect_only_paired - (true or false) whether or not to
 *                      only allow paired devices to connect.
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTM_SetPairableMode(bool allow_pairing, bool connect_only_paired);

/*******************************************************************************
 *
 * Function         BTM_SetSecureConnectionsOnly
 *
 * Description      Enable or disable default treatment for Mode 4 Level 0
 *                  services
 *
 * Parameter        secure_connections_only_mode - (true or false)
 *                  true means that the device should treat Mode 4 Level 0
 *                  services as services of other levels.
 *                  false means that the device should provide default
 *                  treatment for Mode 4 Level 0 services.
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTM_SetSecureConnectionsOnly(bool secure_connections_only_mode);

/*******************************************************************************
 *
 * Function         BTM_SetSecurityLevel
 *
 * Description      Register service security level with Security Manager.  Each
 *                  service must register its requirements regardless of the
 *                  security level that is used.  This API is called once for
 *                  originators and again for acceptors of connections.
 *
 * Returns          true if registered OK, else false
 *
 ******************************************************************************/
extern bool BTM_SetSecurityLevel(bool is_originator, const char* p_name,
                                 uint8_t service_id, uint16_t sec_level,
                                 uint16_t psm, uint32_t mx_proto_id,
                                 uint32_t mx_chan_id);

/*******************************************************************************
 *
 * Function         BTM_SetOutService
 *
 * Description      This function is called to set the service for
 *                  outgoing connection.
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTM_SetOutService(BD_ADDR bd_addr, uint8_t service_id,
                              uint32_t mx_chan_id);

/*******************************************************************************
 *
 * Function         BTM_SecClrService
 *
 * Description      Removes specified service record(s) from the security
 *                  database. All service records with the specified name are
 *                  removed. Typically used only by devices with limited RAM
 *                  so that it can reuse an old security service record.
 *
 * Returns          Number of records that were freed.
 *
 ******************************************************************************/
extern uint8_t BTM_SecClrService(uint8_t service_id);

/*******************************************************************************
 *
 * Function         BTM_SecAddDevice
 *
 * Description      Add/modify device.  This function will be normally called
 *                  during host startup to restore all required information
 *                  stored in the NVRAM.
 *                  dev_class, bd_name, link_key, and features are NULL if
 *                  unknown
 *
 * Returns          true if added OK, else false
 *
 ******************************************************************************/
extern bool BTM_SecAddDevice(BD_ADDR bd_addr, DEV_CLASS dev_class,
                             BD_NAME bd_name, uint8_t* features,
                             uint32_t trusted_mask[], LINK_KEY link_key,
                             uint8_t key_type, tBTM_IO_CAP io_cap,
                             uint8_t pin_length);

/*******************************************************************************
 *
 * Function         BTM_SecDeleteDevice
 *
 * Description      Free resources associated with the device.
 *
 * Returns          true if rmoved OK, false if not found
 *
 ******************************************************************************/
extern bool BTM_SecDeleteDevice(BD_ADDR bd_addr);

/*******************************************************************************
 *
 * Function         BTM_SecClearSecurityFlags
 *
 * Description      Reset the security flags (mark as not-paired) for a given
 *                  remove device.
 *
 ******************************************************************************/
extern void BTM_SecClearSecurityFlags(BD_ADDR bd_addr);

/*******************************************************************************
 *
 * Function         BTM_SecGetDeviceLinkKey
 *
 * Description      This function is called to obtain link key for the device
 *                  it returns BTM_SUCCESS if link key is available, or
 *                  BTM_UNKNOWN_ADDR if Security Manager does not know about
 *                  the device or device record does not contain link key info
 *
 * Returns          BTM_SUCCESS if successful, otherwise error code
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SecGetDeviceLinkKey(BD_ADDR bd_addr, LINK_KEY link_key);

/*******************************************************************************
 *
 * Function         BTM_SecGetDeviceLinkKeyType
 *
 * Description      This function is called to obtain link key type for the
 *                  device.
 *                  it returns BTM_SUCCESS if link key is available, or
 *                  BTM_UNKNOWN_ADDR if Security Manager does not know about
 *                  the device or device record does not contain link key info
 *
 * Returns          BTM_LKEY_TYPE_IGNORE if link key is unknown, link type
 *                  otherwise.
 *
 ******************************************************************************/
extern tBTM_LINK_KEY_TYPE BTM_SecGetDeviceLinkKeyType(BD_ADDR bd_addr);

/*******************************************************************************
 *
 * Function         BTM_PINCodeReply
 *
 * Description      This function is called after Security Manager submitted
 *                  PIN code request to the UI.
 *
 * Parameters:      bd_addr      - Address of the device for which PIN was
 *                                 requested
 *                  res          - result of the operation BTM_SUCCESS if
 *                                 success
 *                  pin_len      - length in bytes of the PIN Code
 *                  p_pin        - pointer to array with the PIN Code
 *                  trusted_mask - bitwise OR of trusted services
 *                                 (array of uint32_t)
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTM_PINCodeReply(BD_ADDR bd_addr, uint8_t res, uint8_t pin_len,
                             uint8_t* p_pin, uint32_t trusted_mask[]);

/*******************************************************************************
 *
 * Function         BTM_SecBond
 *
 * Description      This function is called to perform bonding with peer device.
 *
 * Parameters:      bd_addr      - Address of the device to bond
 *                  pin_len      - length in bytes of the PIN Code
 *                  p_pin        - pointer to array with the PIN Code
 *                  trusted_mask - bitwise OR of trusted services
 *                                 (array of uint32_t)
 * Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SecBond(BD_ADDR bd_addr, uint8_t pin_len, uint8_t* p_pin,
                               uint32_t trusted_mask[]);

/*******************************************************************************
 *
 * Function         BTM_SecBondByTransport
 *
 * Description      Perform bonding by designated transport
 *
 * Parameters:      bd_addr      - Address of the device to bond
 *                  pin_len      - length in bytes of the PIN Code
 *                  p_pin        - pointer to array with the PIN Code
 *                  trusted_mask - bitwise OR of trusted services
 *                                 (array of uint32_t)
 *                  transport :  Physical transport to use for bonding
 *                               (BR/EDR or LE)
 *
 * Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SecBondByTransport(BD_ADDR bd_addr,
                                          tBT_TRANSPORT transport,
                                          uint8_t pin_len, uint8_t* p_pin,
                                          uint32_t trusted_mask[]);

/*******************************************************************************
 *
 * Function         BTM_SecBondCancel
 *
 * Description      This function is called to cancel ongoing bonding process
 *                  with peer device.
 *
 * Returns          BTM_CMD_STARTED if successfully initiated, otherwise error
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SecBondCancel(BD_ADDR bd_addr);

/*******************************************************************************
 *
 * Function         BTM_SetEncryption
 *
 * Description      This function is called to ensure that connection is
 *                  encrypted.  Should be called only on an open connection.
 *                  Typically only needed for connections that first want to
 *                  bring up unencrypted links, then later encrypt them.
 *
 * Parameters:      bd_addr       - Address of the peer device
 *                  transport     - Link transport
 *                  p_callback    - Pointer to callback function called if
 *                                  this function returns PENDING after required
 *                                  procedures are completed.  Can be set to
 *                                  NULL if status is not desired.
 *                  p_ref_data    - pointer to any data the caller wishes to
 *                                  receive in the callback function upon
 *                                  completion.
 *                                  can be set to NULL if not used.
 *                  sec_act       - LE security action, unused for BR/EDR
 *
 * Returns          BTM_SUCCESS   - already encrypted
 *                  BTM_PENDING   - command will be returned in the callback
 *                  BTM_WRONG_MODE- connection not up.
 *                  BTM_BUSY      - security procedures are currently active
 *                  BTM_MODE_UNSUPPORTED - if security manager not linked in.
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetEncryption(BD_ADDR bd_addr, tBT_TRANSPORT transport,
                                     tBTM_SEC_CBACK* p_callback,
                                     void* p_ref_data,
                                     tBTM_BLE_SEC_ACT sec_act);

/*******************************************************************************
 *
 * Function         BTM_ConfirmReqReply
 *
 * Description      This function is called to confirm the numeric value for
 *                  Simple Pairing in response to BTM_SP_CFM_REQ_EVT
 *
 * Parameters:      res           - result of the operation BTM_SUCCESS if
 *                                  success
 *                  bd_addr       - Address of the peer device
 *
 ******************************************************************************/
extern void BTM_ConfirmReqReply(tBTM_STATUS res, BD_ADDR bd_addr);

/*******************************************************************************
 *
 * Function         BTM_PasskeyReqReply
 *
 * Description      This function is called to provide the passkey for
 *                  Simple Pairing in response to BTM_SP_KEY_REQ_EVT
 *
 * Parameters:      res           - result of the operation BTM_SUCCESS if
 *                                  success
 *                  bd_addr       - Address of the peer device
 *                  passkey       - numeric value in the range of
 *                                  0 - 999999(0xF423F).
 *
 ******************************************************************************/
extern void BTM_PasskeyReqReply(tBTM_STATUS res, BD_ADDR bd_addr,
                                uint32_t passkey);

/*******************************************************************************
 *
 * Function         BTM_SendKeypressNotif
 *
 * Description      This function is used during the passkey entry model
 *                  by a device with KeyboardOnly IO capabilities
 *                  (very likely to be a HID Device).
 *                  It is called by a HID Device to inform the remote device
 *                  when a key has been entered or erased.
 *
 * Parameters:      bd_addr - Address of the peer device
 *                  type - notification type
 *
 ******************************************************************************/
extern void BTM_SendKeypressNotif(BD_ADDR bd_addr, tBTM_SP_KEY_TYPE type);

/*******************************************************************************
 *
 * Function         BTM_IoCapRsp
 *
 * Description      This function is called in response to BTM_SP_IO_REQ_EVT
 *                  When the event data io_req.oob_data is set to
 *                  BTM_OOB_UNKNOWN by the tBTM_SP_CALLBACK implementation, this
 *                  function is called to provide the actual response
 *
 * Parameters:      bd_addr - Address of the peer device
 *                  io_cap  - The IO capability of local device.
 *                  oob     - BTM_OOB_NONE or BTM_OOB_PRESENT.
 *                  auth_req- MITM protection required or not.
 *
 ******************************************************************************/
extern void BTM_IoCapRsp(BD_ADDR bd_addr, tBTM_IO_CAP io_cap, tBTM_OOB_DATA oob,
                         tBTM_AUTH_REQ auth_req);

/*******************************************************************************
 *
 * Function         BTM_ReadLocalOobData
 *
 * Description      This function is called to read the local OOB data from
 *                  LM
 *
 ******************************************************************************/
extern void BTM_ReadLocalOobData(void);

/*******************************************************************************
 *
 * Function         BTM_RemoteOobDataReply
 *
 * Description      This function is called to provide the remote OOB data for
 *                  Simple Pairing in response to BTM_SP_RMT_OOB_EVT
 *
 * Parameters:      bd_addr     - Address of the peer device
 *                  c           - simple pairing Hash C.
 *                  r           - simple pairing Randomizer  C.
 *
 ******************************************************************************/
extern void BTM_RemoteOobDataReply(tBTM_STATUS res, BD_ADDR bd_addr,
                                   BT_OCTET16 c, BT_OCTET16 r);

/*******************************************************************************
 *
 * Function         BTM_BuildOobData
 *
 * Description      This function is called to build the OOB data payload to
 *                  be sent over OOB (non-Bluetooth) link
 *
 * Parameters:      p_data  - the location for OOB data
 *                  max_len - p_data size.
 *                  c       - simple pairing Hash C.
 *                  r       - simple pairing Randomizer  C.
 *                  name_len- 0, local device name would not be included.
 *                            otherwise, the local device name is included for
 *                            up to this specified length
 *
 * Returns          Number of bytes in p_data.
 *
 ******************************************************************************/
extern uint16_t BTM_BuildOobData(uint8_t* p_data, uint16_t max_len,
                                 BT_OCTET16 c, BT_OCTET16 r, uint8_t name_len);

/*******************************************************************************
 *
 * Function         BTM_BothEndsSupportSecureConnections
 *
 * Description      This function is called to check if both the local device
 *                  and the peer device specified by bd_addr support BR/EDR
 *                  Secure Connections.
 *
 * Parameters:      bd_addr - address of the peer
 *
 * Returns          true if BR/EDR Secure Connections are supported by both
 *                  local and the remote device.
 *                  else false.
 *
 ******************************************************************************/
extern bool BTM_BothEndsSupportSecureConnections(BD_ADDR bd_addr);

/*******************************************************************************
 *
 * Function         BTM_PeerSupportsSecureConnections
 *
 * Description      This function is called to check if the peer supports
 *                  BR/EDR Secure Connections.
 *
 * Parameters:      bd_addr - address of the peer
 *
 * Returns          true if BR/EDR Secure Connections are supported by the peer,
 *                  else false.
 *
 ******************************************************************************/
extern bool BTM_PeerSupportsSecureConnections(BD_ADDR bd_addr);

/*******************************************************************************
 *
 * Function         BTM_ReadOobData
 *
 * Description      This function is called to parse the OOB data payload
 *                  received over OOB (non-Bluetooth) link
 *
 * Parameters:      p_data  - the location for OOB data
 *                  eir_tag - The associated EIR tag to read the data.
 *                  *p_len(output) - the length of the data with the given tag.
 *
 * Returns          the beginning of the data with the given tag.
 *                  NULL, if the tag is not found.
 *
 ******************************************************************************/
extern uint8_t* BTM_ReadOobData(uint8_t* p_data, uint8_t eir_tag,
                                uint8_t* p_len);

/*******************************************************************************
 *
 * Function         BTM_SecReadDevName
 *
 * Description      Looks for the device name in the security database for the
 *                  specified BD address.
 *
 * Returns          Pointer to the name or NULL
 *
 ******************************************************************************/
extern char* BTM_SecReadDevName(BD_ADDR bd_addr);

/*****************************************************************************
 *  POWER MANAGEMENT FUNCTIONS
 ****************************************************************************/
/*******************************************************************************
 *
 * Function         BTM_PmRegister
 *
 * Description      register or deregister with power manager
 *
 * Returns          BTM_SUCCESS if successful,
 *                  BTM_NO_RESOURCES if no room to hold registration
 *                  BTM_ILLEGAL_VALUE
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_PmRegister(uint8_t mask, uint8_t* p_pm_id,
                                  tBTM_PM_STATUS_CBACK* p_cb);

/*******************************************************************************
 *
 * Function         BTM_SetPowerMode
 *
 * Description      store the mode in control block or
 *                  alter ACL connection behavior.
 *
 * Returns          BTM_SUCCESS if successful,
 *                  BTM_UNKNOWN_ADDR if bd addr is not active or bad
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetPowerMode(uint8_t pm_id, BD_ADDR remote_bda,
                                    tBTM_PM_PWR_MD* p_mode);

/*******************************************************************************
 *
 * Function         BTM_ReadPowerMode
 *
 * Description      This returns the current mode for a specific
 *                  ACL connection.
 *
 * Input Param      remote_bda - device address of desired ACL connection
 *
 * Output Param     p_mode - address where the current mode is copied into.
 *                          BTM_ACL_MODE_NORMAL
 *                          BTM_ACL_MODE_HOLD
 *                          BTM_ACL_MODE_SNIFF
 *                          BTM_ACL_MODE_PARK
 *                          (valid only if return code is BTM_SUCCESS)
 *
 * Returns          BTM_SUCCESS if successful,
 *                  BTM_UNKNOWN_ADDR if bd addr is not active or bad
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_ReadPowerMode(BD_ADDR remote_bda, tBTM_PM_MODE* p_mode);

/*******************************************************************************
 *
 * Function         BTM_SetSsrParams
 *
 * Description      This sends the given SSR parameters for the given ACL
 *                  connection if it is in ACTIVE mode.
 *
 * Input Param      remote_bda - device address of desired ACL connection
 *                  max_lat    - maximum latency (in 0.625ms)(0-0xFFFE)
 *                  min_rmt_to - minimum remote timeout
 *                  min_loc_to - minimum local timeout
 *
 *
 * Returns          BTM_SUCCESS if the HCI command is issued successful,
 *                  BTM_UNKNOWN_ADDR if bd addr is not active or bad
 *                  BTM_CMD_STORED if the command is stored
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_SetSsrParams(BD_ADDR remote_bda, uint16_t max_lat,
                                    uint16_t min_rmt_to, uint16_t min_loc_to);

/*******************************************************************************
 *
 * Function         BTM_GetHCIConnHandle
 *
 * Description      This function is called to get the handle for an ACL
 *                  connection to a specific remote BD Address.
 *
 * Returns          the handle of the connection, or 0xFFFF if none.
 *
 ******************************************************************************/
extern uint16_t BTM_GetHCIConnHandle(const BD_ADDR remote_bda,
                                     tBT_TRANSPORT transport);

/*******************************************************************************
 *
 * Function         BTM_DeleteStoredLinkKey
 *
 * Description      This function is called to delete link key for the specified
 *                  device addresses from the NVRAM storage attached to the
 *                  Bluetooth controller.
 *
 * Parameters:      bd_addr      - Addresses of the devices
 *                  p_cb         - Call back function to be called to return
 *                                 the results
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_DeleteStoredLinkKey(BD_ADDR bd_addr, tBTM_CMPL_CB* p_cb);

/*******************************************************************************
 *
 * Function         BTM_WriteEIR
 *
 * Description      This function is called to write EIR data to controller.
 *
 * Parameters       p_buff - allocated HCI command buffer including extended
 *                           inquriry response
 *
 * Returns          BTM_SUCCESS  - if successful
 *                  BTM_MODE_UNSUPPORTED - if local device cannot support it
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_WriteEIR(BT_HDR* p_buff);

/*******************************************************************************
 *
 * Function         BTM_CheckEirData
 *
 * Description      Get EIR data from the significant part.
 *
 * Parameters       p_eir - pointer of EIR significant part
 *                  type   - finding EIR data type
 *                  p_length - return the length of EIR data
 *
 * Returns          pointer of EIR data
 *
 ******************************************************************************/
extern uint8_t* BTM_CheckEirData(uint8_t* p_eir, uint8_t type,
                                 uint8_t* p_length);

/*******************************************************************************
 *
 * Function         BTM_HasEirService
 *
 * Description      This function is called to know if UUID in bit map of UUID.
 *
 * Parameters       p_eir_uuid - bit map of UUID list
 *                  uuid16 - UUID 16-bit
 *
 * Returns          true - if found
 *                  false - if not found
 *
 ******************************************************************************/
extern bool BTM_HasEirService(uint32_t* p_eir_uuid, uint16_t uuid16);

/*******************************************************************************
 *
 * Function         BTM_HasInquiryEirService
 *
 * Description      Return if a UUID is in the bit map of a UUID list.
 *
 * Parameters       p_results - inquiry results
 *                  uuid16 - UUID 16-bit
 *
 * Returns          BTM_EIR_FOUND - if found
 *                  BTM_EIR_NOT_FOUND - if not found and it is a complete list
 *                  BTM_EIR_UNKNOWN - if not found and it is not complete list
 *
 ******************************************************************************/
extern tBTM_EIR_SEARCH_RESULT BTM_HasInquiryEirService(
    tBTM_INQ_RESULTS* p_results, uint16_t uuid16);

/*******************************************************************************
 *
 * Function         BTM_AddEirService
 *
 * Description      This function is called to add a service in the bit map UUID
 *                  list.
 *
 * Parameters       p_eir_uuid - bit mask of UUID list for EIR
 *                  uuid16 - UUID 16-bit
 *
 * Returns          None
 *
 ******************************************************************************/
extern void BTM_AddEirService(uint32_t* p_eir_uuid, uint16_t uuid16);

/*******************************************************************************
 *
 * Function         BTM_RemoveEirService
 *
 * Description      This function is called to remove a service from the bit map
 *                  UUID list.
 *
 * Parameters       p_eir_uuid - bit mask of UUID list for EIR
 *                  uuid16 - UUID 16-bit
 *
 * Returns          None
 *
 ******************************************************************************/
extern void BTM_RemoveEirService(uint32_t* p_eir_uuid, uint16_t uuid16);

/*******************************************************************************
 *
 * Function         BTM_GetEirSupportedServices
 *
 * Description      This function is called to get UUID list from bit map UUID
 *                  list.
 *
 * Parameters       p_eir_uuid - bit mask of UUID list for EIR
 *                  p - reference of current pointer of EIR
 *                  max_num_uuid16 - max number of UUID can be written in EIR
 *                  num_uuid16 - number of UUID have been written in EIR
 *
 * Returns          BTM_EIR_MORE_16BITS_UUID_TYPE, if it has more than max
 *                  BTM_EIR_COMPLETE_16BITS_UUID_TYPE, otherwise
 *
 ******************************************************************************/
extern uint8_t BTM_GetEirSupportedServices(uint32_t* p_eir_uuid, uint8_t** p,
                                           uint8_t max_num_uuid16,
                                           uint8_t* p_num_uuid16);

/*******************************************************************************
 *
 * Function         BTM_GetEirUuidList
 *
 * Description      This function parses EIR and returns UUID list.
 *
 * Parameters       p_eir - EIR
 *                  uuid_size - LEN_UUID_16, LEN_UUID_32, LEN_UUID_128
 *                  p_num_uuid - return number of UUID in found list
 *                  p_uuid_list - return UUID 16-bit list
 *                  max_num_uuid - maximum number of UUID to be returned
 *
 * Returns          0 - if not found
 *                  BTM_EIR_COMPLETE_16BITS_UUID_TYPE
 *                  BTM_EIR_MORE_16BITS_UUID_TYPE
 *                  BTM_EIR_COMPLETE_32BITS_UUID_TYPE
 *                  BTM_EIR_MORE_32BITS_UUID_TYPE
 *                  BTM_EIR_COMPLETE_128BITS_UUID_TYPE
 *                  BTM_EIR_MORE_128BITS_UUID_TYPE
 *
 ******************************************************************************/
extern uint8_t BTM_GetEirUuidList(uint8_t* p_eir, uint8_t uuid_size,
                                  uint8_t* p_num_uuid, uint8_t* p_uuid_list,
                                  uint8_t max_num_uuid);

/*****************************************************************************
 *  SCO OVER HCI
 ****************************************************************************/
/*******************************************************************************
 *
 * Function         BTM_ConfigScoPath
 *
 * Description      This function enable/disable SCO over HCI and registers SCO
 *                  data callback if SCO over HCI is enabled.
 *
 * Parameter        path: SCO or HCI
 *                  p_sco_data_cb: callback function or SCO data if path is set
 *                                 to transport.
 *                  p_pcm_param: pointer to the PCM interface parameter. If a
 *                               NULL pointer is used, the PCM parameter
 *                               maintained in the control block will be used;
 *                               otherwise update the control block value.
 *                  err_data_rpt: Lisbon feature to enable the erronous data
 *                                report or not.
 *
 * Returns          BTM_SUCCESS if the successful.
 *                  BTM_NO_RESOURCES: no rsource to start the command.
 *                  BTM_ILLEGAL_VALUE: invalid callback function pointer.
 *                  BTM_CMD_STARTED : Command sent. Waiting for command
 *                                    complete event.
 *
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_ConfigScoPath(tBTM_SCO_ROUTE_TYPE path,
                                     tBTM_SCO_DATA_CB* p_sco_data_cb,
                                     tBTM_SCO_PCM_PARAM* p_pcm_param,
                                     bool err_data_rpt);

/*******************************************************************************
 *
 * Function         BTM_WriteScoData
 *
 * Description      This function write SCO data to a specified instance. The
 *                  data to be written p_buf needs to carry an offset of
 *                  HCI_SCO_PREAMBLE_SIZE bytes, and the data length can not
 *                  exceed BTM_SCO_DATA_SIZE_MAX bytes, whose default value is
 *                  set to 60 and is configurable. Data longer than the maximum
 *                  bytes will be truncated.
 *
 * Returns          BTM_SUCCESS: data write is successful
 *                  BTM_ILLEGAL_VALUE: SCO data contains illegal offset value.
 *                  BTM_SCO_BAD_LENGTH: SCO data length exceeds the max SCO
 *                                      packet size.
 *                  BTM_NO_RESOURCES: no resources.
 *                  BTM_UNKNOWN_ADDR: unknown SCO connection handle, or SCO is
 *                                    not routed via HCI.
 *
 *
 ******************************************************************************/
extern tBTM_STATUS BTM_WriteScoData(uint16_t sco_inx, BT_HDR* p_buf);

/*******************************************************************************
 *
 * Function         BTM_SetARCMode
 *
 * Description      Send Audio Routing Control command.
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTM_SetARCMode(uint8_t iface, uint8_t arc_mode,
                           tBTM_VSC_CMPL_CB* p_arc_cb);

/*******************************************************************************
 *
 * Function         BTM_PCM2Setup_Write
 *
 * Description      Send PCM2_Setup write command.
 *
 * Returns          void
 *
 ******************************************************************************/
extern void BTM_PCM2Setup_Write(bool clk_master, tBTM_VSC_CMPL_CB* p_arc_cb);

/*******************************************************************************
 *
 * Function         BTM_PM_ReadControllerState
 *
 * Description      This function is called to obtain the controller state
 *
 * Returns          Controller state (BTM_CONTRL_ACTIVE, BTM_CONTRL_SCAN, and
 *                                    BTM_CONTRL_IDLE)
 *
 ******************************************************************************/
extern tBTM_CONTRL_STATE BTM_PM_ReadControllerState(void);

#ifdef __cplusplus
}
#endif

#endif /* BTM_API_H */