Classic Bluetooth® GAP API

API Reference

Header File

  • components/bt/host/bluedroid/api/include/api/esp_gap_bt_api.h

  • This header file can be included with:

    #include "esp_gap_bt_api.h"
    
  • This header file is a part of the API provided by the bt component. To declare that your component depends on bt, add the following to your CMakeLists.txt:

    REQUIRES bt
    

    or

    PRIV_REQUIRES bt
    

Functions

static inline uint32_t esp_bt_gap_get_cod_srvc(uint32_t cod)

get major service field of COD

参数

cod -- [in] Class of Device

返回

major service bits

static inline uint32_t esp_bt_gap_get_cod_major_dev(uint32_t cod)

get major device field of COD

参数

cod -- [in] Class of Device

返回

major device bits

static inline uint32_t esp_bt_gap_get_cod_minor_dev(uint32_t cod)

get minor service field of COD

参数

cod -- [in] Class of Device

返回

minor service bits

static inline uint32_t esp_bt_gap_get_cod_format_type(uint32_t cod)

get format type of COD

参数

cod -- [in] Class of Device

返回

format type

static inline bool esp_bt_gap_is_valid_cod(uint32_t cod)

decide the integrity of COD

参数

cod -- [in] Class of Device

返回

  • true if cod is valid

  • false otherise

esp_err_t esp_bt_gap_register_callback(esp_bt_gap_cb_t callback)

register callback function. This function should be called after esp_bluedroid_enable() completes successfully

返回

  • ESP_OK : Succeed

  • ESP_FAIL: others

esp_err_t esp_bt_gap_set_scan_mode(esp_bt_connection_mode_t c_mode, esp_bt_discovery_mode_t d_mode)

Set discoverability and connectability mode for legacy bluetooth. This function should be called after esp_bluedroid_enable() completes successfully.

参数
  • c_mode -- [in] : one of the enums of esp_bt_connection_mode_t

  • d_mode -- [in] : one of the enums of esp_bt_discovery_mode_t

返回

  • ESP_OK : Succeed

  • ESP_ERR_INVALID_ARG: if argument invalid

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • ESP_FAIL: others

esp_err_t esp_bt_gap_start_discovery(esp_bt_inq_mode_t mode, uint8_t inq_len, uint8_t num_rsps)

This function starts Inquiry and Name Discovery. This function should be called after esp_bluedroid_enable() completes successfully. When Inquiry is halted and cached results do not contain device name, then Name Discovery will connect to the peer target to get the device name. esp_bt_gap_cb_t will be called with ESP_BT_GAP_DISC_STATE_CHANGED_EVT when Inquiry is started or Name Discovery is completed. esp_bt_gap_cb_t will be called with ESP_BT_GAP_DISC_RES_EVT each time the two types of discovery results are got.

参数
  • mode -- [in] - Inquiry mode

  • inq_len -- [in] - Inquiry duration in 1.28 sec units, ranging from 0x01 to 0x30. This parameter only specifies the total duration of the Inquiry process,

    • when this time expires, Inquiry will be halted.

  • num_rsps -- [in] - Number of responses that can be received before the Inquiry is halted, value 0 indicates an unlimited number of responses.

返回

  • ESP_OK : Succeed

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • ESP_ERR_INVALID_ARG: if invalid parameters are provided

  • ESP_FAIL: others

esp_err_t esp_bt_gap_cancel_discovery(void)

Cancel Inquiry and Name Discovery. This function should be called after esp_bluedroid_enable() completes successfully. esp_bt_gap_cb_t will be called with ESP_BT_GAP_DISC_STATE_CHANGED_EVT if Inquiry or Name Discovery is cancelled by calling this function.

返回

  • ESP_OK : Succeed

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • ESP_FAIL: others

esp_err_t esp_bt_gap_get_remote_services(esp_bd_addr_t remote_bda)

Start SDP to get remote services. This function should be called after esp_bluedroid_enable() completes successfully. esp_bt_gap_cb_t will be called with ESP_BT_GAP_RMT_SRVCS_EVT after service discovery ends.

返回

  • ESP_OK : Succeed

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • ESP_FAIL: others

esp_err_t esp_bt_gap_get_remote_service_record(esp_bd_addr_t remote_bda, esp_bt_uuid_t *uuid)

Start SDP to look up the service matching uuid on the remote device. This function should be called after esp_bluedroid_enable() completes successfully.

esp_bt_gap_cb_t will be called with ESP_BT_GAP_RMT_SRVC_REC_EVT after service discovery ends

返回

  • ESP_OK : Succeed

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • ESP_FAIL: others

uint8_t *esp_bt_gap_resolve_eir_data(uint8_t *eir, esp_bt_eir_type_t type, uint8_t *length)

This function is called to get EIR data for a specific type.

参数
  • eir -- [in] - pointer of raw eir data to be resolved

  • type -- [in] - specific EIR data type

  • length -- [out] - return the length of EIR data excluding fields of length and data type

返回

pointer of starting position of eir data excluding eir data type, NULL if not found

esp_err_t esp_bt_gap_config_eir_data(esp_bt_eir_data_t *eir_data)

This function is called to config EIR data.

             esp_bt_gap_cb_t will be called with ESP_BT_GAP_CONFIG_EIR_DATA_EVT after config EIR ends.
参数

eir_data -- [in] - pointer of EIR data content

返回

  • ESP_OK : Succeed

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • ESP_ERR_INVALID_ARG: if param is invalid

  • ESP_FAIL: others

esp_err_t esp_bt_gap_set_cod(esp_bt_cod_t cod, esp_bt_cod_mode_t mode)

This function is called to set class of device. The structure esp_bt_gap_cb_t will be called with ESP_BT_GAP_SET_COD_EVT after set COD ends. This function should be called after Bluetooth profiles are initialized, otherwise the user configured class of device can be overwritten. Some profiles have special restrictions on class of device, and changes may make these profiles unable to work.

参数
  • cod -- [in] - class of device

  • mode -- [in] - setting mode

返回

  • ESP_OK : Succeed

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • ESP_ERR_INVALID_ARG: if param is invalid

  • ESP_FAIL: others

esp_err_t esp_bt_gap_get_cod(esp_bt_cod_t *cod)

This function is called to get class of device.

参数

cod -- [out] - class of device

返回

  • ESP_OK : Succeed

  • ESP_FAIL: others

esp_err_t esp_bt_gap_read_rssi_delta(esp_bd_addr_t remote_addr)

This function is called to read RSSI delta by address after connected. The RSSI value returned by ESP_BT_GAP_READ_RSSI_DELTA_EVT.

参数

remote_addr -- [in] - remote device address, corresponding to a certain connection handle

返回

  • ESP_OK : Succeed

  • ESP_FAIL: others

esp_err_t esp_bt_gap_remove_bond_device(esp_bd_addr_t bd_addr)

Removes a device from the security database list of peer device.

参数

bd_addr -- [in] : BD address of the peer device

返回

- ESP_OK : success

  • ESP_FAIL : failed

int esp_bt_gap_get_bond_device_num(void)

Get the device number from the security database list of peer device. It will return the device bonded number immediately.

返回

- >= 0 : bonded devices number

  • ESP_FAIL : failed

esp_err_t esp_bt_gap_get_bond_device_list(int *dev_num, esp_bd_addr_t *dev_list)

Get the device from the security database list of peer device. It will return the device bonded information immediately.

参数
  • dev_num -- [inout] Indicate the dev_list array(buffer) size as input. If dev_num is large enough, it means the actual number as output. Suggest that dev_num value equal to esp_ble_get_bond_device_num().

  • dev_list -- [out] an array(buffer) of esp_bd_addr_t type. Use for storing the bonded devices address. The dev_list should be allocated by who call this API.

返回

  • ESP_OK : Succeed

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • ESP_FAIL: others

esp_err_t esp_bt_gap_set_pin(esp_bt_pin_type_t pin_type, uint8_t pin_code_len, esp_bt_pin_code_t pin_code)

Set pin type and default pin code for legacy pairing.

参数
  • pin_type -- [in] Use variable or fixed pin. If pin_type is ESP_BT_PIN_TYPE_VARIABLE, pin_code and pin_code_len will be ignored, and ESP_BT_GAP_PIN_REQ_EVT will come when control requests for pin code. Else, will use fixed pin code and not callback to users.

  • pin_code_len -- [in] Length of pin_code

  • pin_code -- [in] Pin_code

返回

- ESP_OK : success

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • other : failed

esp_err_t esp_bt_gap_pin_reply(esp_bd_addr_t bd_addr, bool accept, uint8_t pin_code_len, esp_bt_pin_code_t pin_code)

Reply the pin_code to the peer device for legacy pairing when ESP_BT_GAP_PIN_REQ_EVT is coming.

参数
  • bd_addr -- [in] BD address of the peer

  • accept -- [in] Pin_code reply successful or declined.

  • pin_code_len -- [in] Length of pin_code

  • pin_code -- [in] Pin_code

返回

- ESP_OK : success

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • other : failed

esp_err_t esp_bt_gap_set_security_param(esp_bt_sp_param_t param_type, void *value, uint8_t len)

Set a GAP security parameter value. Overrides the default value.

参数
  • param_type -- [in] : the type of the param which is to be set

  • value -- [in] : the param value

  • len -- [in] : the length of the param value

返回

- ESP_OK : success

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • other : failed

esp_err_t esp_bt_gap_ssp_passkey_reply(esp_bd_addr_t bd_addr, bool accept, uint32_t passkey)

Reply the key value to the peer device in the legacy connection stage.

参数
  • bd_addr -- [in] : BD address of the peer

  • accept -- [in] : passkey entry successful or declined.

  • passkey -- [in] : passkey value, must be a 6 digit number, can be lead by 0.

返回

- ESP_OK : success

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • other : failed

esp_err_t esp_bt_gap_ssp_confirm_reply(esp_bd_addr_t bd_addr, bool accept)

Reply the confirm value to the peer device in the legacy connection stage.

参数
  • bd_addr -- [in] : BD address of the peer device

  • accept -- [in] : numbers to compare are the same or different

返回

- ESP_OK : success

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • other : failed

esp_err_t esp_bt_gap_set_afh_channels(esp_bt_gap_afh_channels channels)

Set the AFH channels.

参数

channels -- [in] : The n th such field (in the range 0 to 78) contains the value for channel n : 0 means channel n is bad. 1 means channel n is unknown. The most significant bit is reserved and shall be set to 0. At least 20 channels shall be marked as unknown.

返回

- ESP_OK : success

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • other : failed

esp_err_t esp_bt_gap_read_remote_name(esp_bd_addr_t remote_bda)

Read the remote device name.

参数

remote_bda -- [in] The remote device's address

返回

- ESP_OK : success

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • other : failed

esp_err_t esp_bt_gap_set_qos(esp_bd_addr_t remote_bda, uint32_t t_poll)

Config Quality of service.

参数
  • remote_bda -- [in] The remote device's address

  • t_poll -- [in] Poll interval, the maximum time between transmissions which from the master to a particular slave on the ACL logical transport. unit is 0.625ms

返回

- ESP_OK : success

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • other : failed

esp_err_t esp_bt_gap_set_page_timeout(uint16_t page_to)

Set the page timeout esp_bt_gap_cb_t will be called with ESP_BT_GAP_SET_PAGE_TO_EVT after set page timeout ends. The value to be set will not be effective util the next page procedure, it's suggested to set the page timeout before initiating a connection.

参数

page_to -- [in] Page timeout, the maximum time the master will wait for a Base-band page response from the remote device at a locally initiated connection attempt. The valid range is 0x0016 ~ 0xffff, the default value is 0x2000, unit is 0.625ms.

返回

- ESP_OK: success

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • other: failed

esp_err_t esp_bt_gap_get_page_timeout(void)

Get the page timeout esp_bt_gap_cb_t will be called with ESP_BT_GAP_GET_PAGE_TO_EVT after get page timeout ends.

返回

- ESP_OK: success

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • other: failed

esp_err_t esp_bt_gap_set_acl_pkt_types(esp_bd_addr_t remote_bda, esp_bt_acl_pkt_type_t pkt_types)

Set ACL packet types An ESP_BT_GAP_SET_ACL_PPKT_TYPES_EVT event will reported to the APP layer.

返回

- ESP_OK: success

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • other: failed

esp_err_t esp_bt_gap_set_min_enc_key_size(uint8_t key_size)

Set the mininal size of encryption key.

返回

- ESP_OK: success

  • ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled

  • other: failed

Unions

union esp_bt_gap_cb_param_t
#include <esp_gap_bt_api.h>

GAP state callback parameters.

Public Members

struct esp_bt_gap_cb_param_t::disc_res_param disc_res

discovery result parameter struct

struct esp_bt_gap_cb_param_t::disc_state_changed_param disc_st_chg

discovery state changed parameter struct

struct esp_bt_gap_cb_param_t::rmt_srvcs_param rmt_srvcs

services of remote device parameter struct

struct esp_bt_gap_cb_param_t::rmt_srvc_rec_param rmt_srvc_rec

specific service record from remote device parameter struct

struct esp_bt_gap_cb_param_t::read_rssi_delta_param read_rssi_delta

read rssi parameter struct

struct esp_bt_gap_cb_param_t::config_eir_data_param config_eir_data

config EIR data

struct esp_bt_gap_cb_param_t::auth_cmpl_param auth_cmpl

authentication complete parameter struct

struct esp_bt_gap_cb_param_t::enc_chg_param enc_chg

encryption change parameter struct

struct esp_bt_gap_cb_param_t::pin_req_param pin_req

pin request parameter struct

struct esp_bt_gap_cb_param_t::cfm_req_param cfm_req

confirm request parameter struct

struct esp_bt_gap_cb_param_t::key_notif_param key_notif

passkey notif parameter struct

struct esp_bt_gap_cb_param_t::key_req_param key_req

passkey request parameter struct

struct esp_bt_gap_cb_param_t::set_afh_channels_param set_afh_channels

set AFH channel parameter struct

struct esp_bt_gap_cb_param_t::read_rmt_name_param read_rmt_name

read Remote Name parameter struct

struct esp_bt_gap_cb_param_t::mode_chg_param mode_chg

mode change event parameter struct

struct esp_bt_gap_cb_param_t::bt_remove_bond_dev_cmpl_evt_param remove_bond_dev_cmpl

Event parameter of ESP_BT_GAP_REMOVE_BOND_DEV_COMPLETE_EVT

struct esp_bt_gap_cb_param_t::qos_cmpl_param qos_cmpl

QoS complete parameter struct

struct esp_bt_gap_cb_param_t::page_to_set_param set_page_timeout

set page timeout parameter struct

struct esp_bt_gap_cb_param_t::page_to_get_param get_page_timeout

get page timeout parameter struct

struct esp_bt_gap_cb_param_t::set_acl_pkt_types_param set_acl_pkt_types

set ACL packet types parameter struct

struct esp_bt_gap_cb_param_t::set_min_enc_key_size_param set_min_enc_key_size

set minimum encryption key size parameter struct

struct esp_bt_gap_cb_param_t::acl_conn_cmpl_stat_param acl_conn_cmpl_stat

ACL connection complete status parameter struct

struct esp_bt_gap_cb_param_t::acl_disconn_cmpl_stat_param acl_disconn_cmpl_stat

ACL disconnection complete status parameter struct

struct acl_conn_cmpl_stat_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_ACL_CONN_CMPL_STAT_EVT.

Public Members

esp_bt_status_t stat

ACL connection status

uint16_t handle

ACL connection handle

esp_bd_addr_t bda

remote bluetooth device address

struct acl_disconn_cmpl_stat_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_ACL_DISCONN_CMPL_STAT_EVT.

Public Members

esp_bt_status_t reason

ACL disconnection reason

uint16_t handle

ACL connection handle

esp_bd_addr_t bda

remote bluetooth device address

struct auth_cmpl_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_AUTH_CMPL_EVT.

Public Members

esp_bd_addr_t bda

remote bluetooth device address

esp_bt_status_t stat

authentication complete status

esp_bt_link_key_type_t lk_type

type of link key generated

uint8_t device_name[ESP_BT_GAP_MAX_BDNAME_LEN + 1]

device name

struct bt_remove_bond_dev_cmpl_evt_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_REMOVE_BOND_DEV_COMPLETE_EVT.

Public Members

esp_bd_addr_t bda

remote bluetooth device address

esp_bt_status_t status

Indicate the remove bond device operation success status

struct cfm_req_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_CFM_REQ_EVT.

Public Members

esp_bd_addr_t bda

remote bluetooth device address

uint32_t num_val

the numeric value for comparison.

struct config_eir_data_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_CONFIG_EIR_DATA_EVT *.

Public Members

esp_bt_status_t stat

config EIR status: ESP_BT_STATUS_SUCCESS: config success ESP_BT_STATUS_EIR_TOO_LARGE: the EIR data is more than 240B. The EIR may not contain the whole data. others: failed

uint8_t eir_type_num

the number of EIR types in EIR type

esp_bt_eir_type_t eir_type[ESP_BT_EIR_TYPE_MAX_NUM]

EIR types in EIR type

struct disc_res_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_DISC_RES_EVT.

Public Members

esp_bd_addr_t bda

remote bluetooth device address

int num_prop

number of properties got

esp_bt_gap_dev_prop_t *prop

properties discovered from the new device

struct disc_state_changed_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_DISC_STATE_CHANGED_EVT.

Public Members

esp_bt_gap_discovery_state_t state

discovery state

struct enc_chg_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_ENC_CHG_EVT.

Public Members

esp_bd_addr_t bda

remote bluetooth device address

esp_bt_enc_mode_t enc_mode

encryption mode

struct key_notif_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_KEY_NOTIF_EVT.

Public Members

esp_bd_addr_t bda

remote bluetooth device address

uint32_t passkey

the numeric value for passkey entry.

struct key_req_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_KEY_REQ_EVT.

Public Members

esp_bd_addr_t bda

remote bluetooth device address

struct mode_chg_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_MODE_CHG_EVT.

Public Members

esp_bd_addr_t bda

remote bluetooth device address

esp_bt_pm_mode_t mode

PM mode

struct page_to_get_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_GET_PAGE_TO_EVT.

Public Members

esp_bt_status_t stat

get page timeout status

uint16_t page_to

page_timeout value to be set, unit is 0.625ms.

struct page_to_set_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_SET_PAGE_TO_EVT.

Public Members

esp_bt_status_t stat

set page timeout status

struct pin_req_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_PIN_REQ_EVT.

Public Members

esp_bd_addr_t bda

remote bluetooth device address

bool min_16_digit

TRUE if the pin returned must be at least 16 digits

struct qos_cmpl_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_QOS_CMPL_EVT.

Public Members

esp_bt_status_t stat

QoS status

esp_bd_addr_t bda

remote bluetooth device address

uint32_t t_poll

poll interval, the maximum time between transmissions which from the master to a particular slave on the ACL logical transport. unit is 0.625ms.

struct read_rmt_name_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_READ_REMOTE_NAME_EVT.

Public Members

esp_bd_addr_t bda

remote bluetooth device address

esp_bt_status_t stat

read Remote Name status

uint8_t rmt_name[ESP_BT_GAP_MAX_BDNAME_LEN + 1]

Remote device name

struct read_rssi_delta_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_READ_RSSI_DELTA_EVT *.

Public Members

esp_bd_addr_t bda

remote bluetooth device address

esp_bt_status_t stat

read rssi status

int8_t rssi_delta

rssi delta value range -128 ~127, The value zero indicates that the RSSI is inside the Golden Receive Power Range, the Golden Receive Power Range is from ESP_BT_GAP_RSSI_LOW_THRLD to ESP_BT_GAP_RSSI_HIGH_THRLD

struct rmt_srvc_rec_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_RMT_SRVC_REC_EVT.

Public Members

esp_bd_addr_t bda

remote bluetooth device address

esp_bt_status_t stat

service search status

struct rmt_srvcs_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_RMT_SRVCS_EVT.

Public Members

esp_bd_addr_t bda

remote bluetooth device address

esp_bt_status_t stat

service search status

int num_uuids

number of UUID in uuid_list

esp_bt_uuid_t *uuid_list

list of service UUIDs of remote device

struct set_acl_pkt_types_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_ACL_PKT_TYPE_CHANGED_EVT.

Public Members

esp_bt_status_t status

set ACL packet types status

esp_bd_addr_t bda

remote bluetooth device address

uint16_t pkt_types

packet types successfully set

struct set_afh_channels_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_SET_AFH_CHANNELS_EVT.

Public Members

esp_bt_status_t stat

set AFH channel status

struct set_min_enc_key_size_param
#include <esp_gap_bt_api.h>

ESP_BT_GAP_SET_MIN_ENC_KEY_SIZE_EVT.

Public Members

esp_bt_status_t status

set minimum encryption key size status

Structures

struct esp_bt_cod_t

Class of device.

Public Members

uint32_t reserved_2

undefined

uint32_t minor

minor class

uint32_t major

major class

uint32_t service

service class

uint32_t reserved_8

undefined

struct esp_bt_gap_dev_prop_t

Bluetooth Device Property Descriptor.

Public Members

esp_bt_gap_dev_prop_type_t type

Device property type

int len

Device property value length

void *val

Device property value

struct esp_bt_eir_data_t

EIR data content, according to "Supplement to the Bluetooth Core Specification".

Public Members

bool fec_required

FEC is required or not, true by default

bool include_txpower

EIR data include TX power, false by default

bool include_uuid

EIR data include UUID, false by default

bool include_name

EIR data include device name, true by default

uint8_t flag

EIR flags, see ESP_BT_EIR_FLAG for details, EIR will not include flag if it is 0, 0 by default

uint16_t manufacturer_len

Manufacturer data length, 0 by default

uint8_t *p_manufacturer_data

Manufacturer data point

uint16_t url_len

URL length, 0 by default

uint8_t *p_url

URL point

Macros

ESP_BT_GAP_RSSI_HIGH_THRLD

RSSI threshold.

High RSSI threshold

ESP_BT_GAP_RSSI_LOW_THRLD

Low RSSI threshold

ESP_BT_GAP_AFH_CHANNELS_LEN
ESP_BT_GAP_MAX_BDNAME_LEN

Maximum bytes of Bluetooth device name.

ESP_BT_GAP_EIR_DATA_LEN

Maximum size of EIR Significant part.

ESP_BT_EIR_TYPE_FLAGS

Extended Inquiry Response data type.

Flag with information such as BR/EDR and LE support

ESP_BT_EIR_TYPE_INCMPL_16BITS_UUID

Incomplete list of 16-bit service UUIDs

ESP_BT_EIR_TYPE_CMPL_16BITS_UUID

Complete list of 16-bit service UUIDs

ESP_BT_EIR_TYPE_INCMPL_32BITS_UUID

Incomplete list of 32-bit service UUIDs

ESP_BT_EIR_TYPE_CMPL_32BITS_UUID

Complete list of 32-bit service UUIDs

ESP_BT_EIR_TYPE_INCMPL_128BITS_UUID

Incomplete list of 128-bit service UUIDs

ESP_BT_EIR_TYPE_CMPL_128BITS_UUID

Complete list of 128-bit service UUIDs

ESP_BT_EIR_TYPE_SHORT_LOCAL_NAME

Shortened Local Name

ESP_BT_EIR_TYPE_CMPL_LOCAL_NAME

Complete Local Name

ESP_BT_EIR_TYPE_TX_POWER_LEVEL

Tx power level, value is 1 octet ranging from -127 to 127, unit is dBm

ESP_BT_EIR_TYPE_URL

Uniform resource identifier

ESP_BT_EIR_TYPE_MANU_SPECIFIC

Manufacturer specific data

ESP_BT_EIR_TYPE_MAX_NUM

MAX number of EIR type

ESP_BT_ACL_PKT_TYPES_MASK_DM1
ESP_BT_ACL_PKT_TYPES_MASK_DH1
ESP_BT_ACL_PKT_TYPES_MASK_DM3
ESP_BT_ACL_PKT_TYPES_MASK_DH3
ESP_BT_ACL_PKT_TYPES_MASK_DM5
ESP_BT_ACL_PKT_TYPES_MASK_DH5
ESP_BT_ACL_PKT_TYPES_MASK_NO_2_DH1
ESP_BT_ACL_PKT_TYPES_MASK_NO_3_DH1
ESP_BT_ACL_PKT_TYPES_MASK_NO_2_DH3
ESP_BT_ACL_PKT_TYPES_MASK_NO_3_DH3
ESP_BT_ACL_PKT_TYPES_MASK_NO_2_DH5
ESP_BT_ACL_PKT_TYPES_MASK_NO_3_DH5
ESP_BT_ACL_DM1_ONLY
ESP_BT_ACL_DH1_ONLY
ESP_BT_ACL_DM3_ONLY
ESP_BT_ACL_DH3_ONLY
ESP_BT_ACL_DM5_ONLY
ESP_BT_ACL_DH5_ONLY
ESP_BT_ACL_2_DH1_ONLY
ESP_BT_ACL_3_DH1_ONLY
ESP_BT_ACL_2_DH3_ONLY
ESP_BT_ACL_3_DH3_ONLY
ESP_BT_ACL_2_DH5_ONLY
ESP_BT_ACL_3_DH5_ONLY
ESP_BT_ENC_KEY_SIZE_CTRL_MAX
ESP_BT_ENC_KEY_SIZE_CTRL_MIN
ESP_BT_EIR_FLAG_LIMIT_DISC
ESP_BT_EIR_FLAG_GEN_DISC
ESP_BT_EIR_FLAG_BREDR_NOT_SPT
ESP_BT_EIR_FLAG_DMT_CONTROLLER_SPT
ESP_BT_EIR_FLAG_DMT_HOST_SPT
ESP_BT_EIR_MAX_LEN
ESP_BT_PIN_CODE_LEN

Max pin code length

ESP_BT_IO_CAP_OUT
ESP_BT_IO_CAP_IO
ESP_BT_IO_CAP_IN
ESP_BT_IO_CAP_NONE
ESP_BT_PM_MD_ACTIVE

Active mode

ESP_BT_PM_MD_HOLD

Hold mode

ESP_BT_PM_MD_SNIFF

Sniff mode

ESP_BT_PM_MD_PARK

Park state

ESP_BT_COD_SRVC_BIT_MASK

Bits of major service class field.

Major service bit mask

ESP_BT_COD_SRVC_BIT_OFFSET

Major service bit offset

ESP_BT_COD_MAJOR_DEV_BIT_MASK

Bits of major device class field.

Major device bit mask

ESP_BT_COD_MAJOR_DEV_BIT_OFFSET

Major device bit offset

ESP_BT_COD_MINOR_DEV_BIT_MASK

Bits of minor device class field.

Minor device bit mask

ESP_BT_COD_MINOR_DEV_BIT_OFFSET

Minor device bit offset

ESP_BT_COD_FORMAT_TYPE_BIT_MASK

Bits of format type.

Format type bit mask

ESP_BT_COD_FORMAT_TYPE_BIT_OFFSET

Format type bit offset

ESP_BT_COD_FORMAT_TYPE_1

Class of device format type 1.

Type of link key.

Combination Key

Debug Combination Key

Unauthenticated Combination Key generated from P-192

Authenticated Combination Key generated from P-192

Changed Combination Key

Unauthenticated Combination Key generated from P-256

Authenticated Combination Key generated from P-256

ESP_BT_ENC_MODE_OFF

Type of encryption.

Link Level Encryption is OFF

ESP_BT_ENC_MODE_E0

Link Level Encryption is ON with E0

ESP_BT_ENC_MODE_AES

Link Level Encryption is ON with AES-CCM

ESP_BT_GAP_MIN_INQ_LEN

Minimum and Maximum inquiry length Minimum inquiry duration, unit is 1.28s

ESP_BT_GAP_MAX_INQ_LEN

Maximum inquiry duration, unit is 1.28s

ESP_BT_GAP_TPOLL_MIN

Minimum, Default and Maximum poll interval Minimum poll interval, unit is 625 microseconds

ESP_BT_GAP_TPOLL_DFT

Default poll interval, unit is 625 microseconds

ESP_BT_GAP_TPOLL_MAX

Maximum poll interval, unit is 625 microseconds

Type Definitions

typedef uint8_t esp_bt_gap_afh_channels[ESP_BT_GAP_AFH_CHANNELS_LEN]
typedef uint8_t esp_bt_eir_type_t
typedef uint16_t esp_bt_acl_pkt_type_t
typedef uint8_t esp_bt_pin_code_t[ESP_BT_PIN_CODE_LEN]

Pin Code (upto 128 bits) MSB is 0

typedef uint8_t esp_bt_io_cap_t

Combination of the IO Capability

typedef uint8_t esp_bt_pm_mode_t
typedef uint8_t esp_bt_enc_mode_t
typedef void (*esp_bt_gap_cb_t)(esp_bt_gap_cb_event_t event, esp_bt_gap_cb_param_t *param)

bluetooth GAP callback function type

Param event

: Event type

Param param

: Pointer to callback parameter

Enumerations

enum esp_bt_cod_mode_t

class of device settings

Values:

enumerator ESP_BT_SET_COD_MAJOR_MINOR

overwrite major, minor class

enumerator ESP_BT_SET_COD_SERVICE_CLASS

set the bits in the input, the current bit will remain

enumerator ESP_BT_CLR_COD_SERVICE_CLASS

clear the bits in the input, others will remain

enumerator ESP_BT_SET_COD_ALL

overwrite major, minor, set the bits in service class

enumerator ESP_BT_INIT_COD

overwrite major, minor, and service class

enum esp_bt_connection_mode_t

Discoverability and Connectability mode.

Values:

enumerator ESP_BT_NON_CONNECTABLE

Non-connectable

enumerator ESP_BT_CONNECTABLE

Connectable

enum esp_bt_discovery_mode_t

Values:

enumerator ESP_BT_NON_DISCOVERABLE

Non-discoverable

enumerator ESP_BT_LIMITED_DISCOVERABLE

Limited Discoverable

enumerator ESP_BT_GENERAL_DISCOVERABLE

General Discoverable

enum esp_bt_gap_dev_prop_type_t

Bluetooth Device Property type.

Values:

enumerator ESP_BT_GAP_DEV_PROP_BDNAME

Bluetooth device name, value type is int8_t []

enumerator ESP_BT_GAP_DEV_PROP_COD

Class of Device, value type is uint32_t

enumerator ESP_BT_GAP_DEV_PROP_RSSI

Received Signal strength Indication, value type is int8_t, ranging from -128 to 127

enumerator ESP_BT_GAP_DEV_PROP_EIR

Extended Inquiry Response, value type is uint8_t []

enum esp_bt_cod_srvc_t

Major service class field of Class of Device, mutiple bits can be set.

Values:

enumerator ESP_BT_COD_SRVC_NONE

None indicates an invalid value

enumerator ESP_BT_COD_SRVC_LMTD_DISCOVER

Limited Discoverable Mode

enumerator ESP_BT_COD_SRVC_POSITIONING

Positioning (Location identification)

enumerator ESP_BT_COD_SRVC_NETWORKING

Networking, e.g. LAN, Ad hoc

enumerator ESP_BT_COD_SRVC_RENDERING

Rendering, e.g. Printing, Speakers

enumerator ESP_BT_COD_SRVC_CAPTURING

Capturing, e.g. Scanner, Microphone

enumerator ESP_BT_COD_SRVC_OBJ_TRANSFER

Object Transfer, e.g. v-Inbox, v-Folder

enumerator ESP_BT_COD_SRVC_AUDIO

Audio, e.g. Speaker, Microphone, Headset service

enumerator ESP_BT_COD_SRVC_TELEPHONY

Telephony, e.g. Cordless telephony, Modem, Headset service

enumerator ESP_BT_COD_SRVC_INFORMATION

Information, e.g., WEB-server, WAP-server

enum esp_bt_pin_type_t

Values:

enumerator ESP_BT_PIN_TYPE_VARIABLE

Refer to BTM_PIN_TYPE_VARIABLE

enumerator ESP_BT_PIN_TYPE_FIXED

Refer to BTM_PIN_TYPE_FIXED

enum esp_bt_sp_param_t

Values:

enumerator ESP_BT_SP_IOCAP_MODE

Set IO mode

enum esp_bt_cod_major_dev_t

Major device class field of Class of Device.

Values:

enumerator ESP_BT_COD_MAJOR_DEV_MISC

Miscellaneous

enumerator ESP_BT_COD_MAJOR_DEV_COMPUTER

Computer

enumerator ESP_BT_COD_MAJOR_DEV_PHONE

Phone(cellular, cordless, pay phone, modem

enumerator ESP_BT_COD_MAJOR_DEV_LAN_NAP

LAN, Network Access Point

enumerator ESP_BT_COD_MAJOR_DEV_AV

Audio/Video(headset, speaker, stereo, video display, VCR

enumerator ESP_BT_COD_MAJOR_DEV_PERIPHERAL

Peripheral(mouse, joystick, keyboard)

enumerator ESP_BT_COD_MAJOR_DEV_IMAGING

Imaging(printer, scanner, camera, display

enumerator ESP_BT_COD_MAJOR_DEV_WEARABLE

Wearable

enumerator ESP_BT_COD_MAJOR_DEV_TOY

Toy

enumerator ESP_BT_COD_MAJOR_DEV_HEALTH

Health

enumerator ESP_BT_COD_MAJOR_DEV_UNCATEGORIZED

Uncategorized: device not specified

enum esp_bt_gap_discovery_state_t

Bluetooth Device Discovery state

Values:

enumerator ESP_BT_GAP_DISCOVERY_STOPPED

Device discovery stopped

enumerator ESP_BT_GAP_DISCOVERY_STARTED

Device discovery started

enum esp_bt_gap_cb_event_t

BT GAP callback events.

Values:

enumerator ESP_BT_GAP_DISC_RES_EVT

Device discovery result event

enumerator ESP_BT_GAP_DISC_STATE_CHANGED_EVT

Discovery state changed event

enumerator ESP_BT_GAP_RMT_SRVCS_EVT

Get remote services event

enumerator ESP_BT_GAP_RMT_SRVC_REC_EVT

Get remote service record event

enumerator ESP_BT_GAP_AUTH_CMPL_EVT

Authentication complete event

enumerator ESP_BT_GAP_PIN_REQ_EVT

Legacy Pairing Pin code request

enumerator ESP_BT_GAP_CFM_REQ_EVT

Security Simple Pairing User Confirmation request.

enumerator ESP_BT_GAP_KEY_NOTIF_EVT

Security Simple Pairing Passkey Notification

enumerator ESP_BT_GAP_KEY_REQ_EVT

Security Simple Pairing Passkey request

enumerator ESP_BT_GAP_READ_RSSI_DELTA_EVT

Read rssi event

enumerator ESP_BT_GAP_CONFIG_EIR_DATA_EVT

Config EIR data event

enumerator ESP_BT_GAP_SET_AFH_CHANNELS_EVT

Set AFH channels event

enumerator ESP_BT_GAP_READ_REMOTE_NAME_EVT

Read Remote Name event

enumerator ESP_BT_GAP_MODE_CHG_EVT
enumerator ESP_BT_GAP_REMOVE_BOND_DEV_COMPLETE_EVT

remove bond device complete event

enumerator ESP_BT_GAP_QOS_CMPL_EVT

QOS complete event

enumerator ESP_BT_GAP_ACL_CONN_CMPL_STAT_EVT

ACL connection complete status event

enumerator ESP_BT_GAP_ACL_DISCONN_CMPL_STAT_EVT

ACL disconnection complete status event

enumerator ESP_BT_GAP_SET_PAGE_TO_EVT

Set page timeout event

enumerator ESP_BT_GAP_GET_PAGE_TO_EVT

Get page timeout event

enumerator ESP_BT_GAP_ACL_PKT_TYPE_CHANGED_EVT

Set ACL packet types event

enumerator ESP_BT_GAP_ENC_CHG_EVT

Encryption change event

enumerator ESP_BT_GAP_SET_MIN_ENC_KEY_SIZE_EVT

Set minimum encryption key size

enumerator ESP_BT_GAP_EVT_MAX
enum esp_bt_inq_mode_t

Inquiry Mode

Values:

enumerator ESP_BT_INQ_MODE_GENERAL_INQUIRY

General inquiry mode

enumerator ESP_BT_INQ_MODE_LIMITED_INQUIRY

Limited inquiry mode