CLASSIC BLUETOOTH GAP API¶

API Reference¶

Header File¶

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

Functions¶

static uint32_t esp_bt_gap_get_cod_srvc(uint32_t cod)¶

get major service field of COD

Return

major service bits

Parameters

[in] cod: Class of Device

static uint32_t esp_bt_gap_get_cod_major_dev(uint32_t cod)¶

get major device field of COD

Return

major device bits

Parameters

[in] cod: Class of Device

static uint32_t esp_bt_gap_get_cod_minor_dev(uint32_t cod)¶

get minor service field of COD

Return

minor service bits

Parameters

[in] cod: Class of Device

static uint32_t esp_bt_gap_get_cod_format_type(uint32_t cod)¶

get format type of COD

Return

format type

Parameters

[in] cod: Class of Device

static bool esp_bt_gap_is_valid_cod(uint32_t cod)¶

decide the integrity of COD

Return

true if cod is valid
false otherise

Parameters

[in] cod: Class of Device

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

Return

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.

Return

ESP_OK : Succeed
ESP_ERR_INVALID_ARG: if argument invalid
ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled
ESP_FAIL: others

Parameters

[in] c_mode: : one of the enums of esp_bt_connection_mode_t
[in] d_mode: : one of the enums of esp_bt_discovery_mode_t

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 Inquriry 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.

Return

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

Parameters

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

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.

Return

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.

Return

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

Return

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.

Return

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

Parameters

[in] eir: - pointer of raw eir data to be resolved
[in] type: - specific EIR data type
[out] length: - return the length of EIR data excluding fields of length and data type

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.

Return

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

Parameters

[in] eir_data: - pointer of EIR data content

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. Some profile have special restrictions on class of device, changes may cause these profile do not work.

Return

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

Parameters

[in] cod: - class of device
[in] mode: - setting mode

esp_err_t esp_bt_gap_get_cod(esp_bt_cod_t *cod)¶

This function is called to get class of device.

Return

ESP_OK : Succeed
ESP_FAIL: others

Parameters

[out] cod: - class of device

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.

Return

ESP_OK : Succeed
ESP_FAIL: others

Parameters

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

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.

Return

- ESP_OK : success

ESP_FAIL : failed

Parameters

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

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.

Return

- >= 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.

Return

ESP_OK : Succeed
ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled
ESP_FAIL: others

Parameters

[inout] dev_num: 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().
[out] dev_list: 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.

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.

Return

- ESP_OK : success

ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled
other : failed

Parameters

[in] pin_type: 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.
[in] pin_code_len: Length of pin_code
[in] pin_code: Pin_code

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.

Return

- ESP_OK : success

ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled
other : failed

Parameters

[in] bd_addr: BD address of the peer
[in] accept: Pin_code reply successful or declined.
[in] pin_code_len: Length of pin_code
[in] pin_code: Pin_code

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.

Return

- ESP_OK : success

ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled
other : failed

Parameters

[in] param_type: : the type of the param which is to be set
[in] value: : the param value
[in] len: : the length of the param value

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.

Return

- ESP_OK : success

ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled
other : failed

Parameters

[in] bd_addr: : BD address of the peer
[in] accept: : passkey entry successful or declined.
[in] passkey: : passkey value, must be a 6 digit number, can be lead by 0.

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.

Return

- ESP_OK : success

ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled
other : failed

Parameters

[in] bd_addr: : BD address of the peer device
[in] accept: : numbers to compare are the same or different

esp_err_t esp_bt_gap_set_afh_channels(esp_bt_gap_afh_channels channels)¶

Set the AFH channels.

Return

- ESP_OK : success

ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled
other : failed

Parameters

[in] channels: : 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.

esp_err_t esp_bt_gap_read_remote_name(esp_bd_addr_t remote_bda)¶

Read the remote device name.

Return

- ESP_OK : success

ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled
other : failed

Parameters

[in] remote_bda: The remote device’s address

esp_err_t esp_bt_gap_set_qos(esp_bd_addr_t remote_bda, uint32_t t_poll)¶

Config Quality of service.

Return

- ESP_OK : success

ESP_ERR_INVALID_STATE: if bluetooth stack is not yet enabled
other : failed

Parameters

[in] remote_bda: The remote device’s address
[in] 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

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::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::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

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 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 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_bt_status_t stat¶: read Remote Name status

uint8_t rmt_name[ESP_BT_GAP_MAX_BDNAME_LEN + 1]¶: Remote device name

esp_bd_addr_t bda¶: remote bluetooth device address

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_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

Structures¶

struct esp_bt_cod_t¶

Class of device.

Public Members

uint32_t reserved_2 : 2¶: undefined

uint32_t minor : 6¶: minor class

uint32_t major : 5¶: major class

uint32_t service : 11¶: service class

uint32_t reserved_8 : 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

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_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.

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

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 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 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

Parameters

event: : Event type
param: : Pointer to callback parameter

Enumerations¶

enum esp_bt_cod_mode_t¶

class of device settings

Values:

ESP_BT_SET_COD_MAJOR_MINOR = 0x01¶: overwrite major, minor class

ESP_BT_SET_COD_SERVICE_CLASS = 0x02¶: set the bits in the input, the current bit will remain

ESP_BT_CLR_COD_SERVICE_CLASS = 0x04¶: clear the bits in the input, others will remain

ESP_BT_SET_COD_ALL = 0x08¶: overwrite major, minor, set the bits in service class

ESP_BT_INIT_COD = 0x0a¶: overwrite major, minor, and service class

enum esp_bt_connection_mode_t¶

Discoverability and Connectability mode.

Values:

ESP_BT_NON_CONNECTABLE¶: Non-connectable

ESP_BT_CONNECTABLE¶: Connectable

enum esp_bt_discovery_mode_t¶

Values:

ESP_BT_NON_DISCOVERABLE¶: Non-discoverable

ESP_BT_LIMITED_DISCOVERABLE¶: Limited Discoverable

ESP_BT_GENERAL_DISCOVERABLE¶: General Discoverable

enum esp_bt_gap_dev_prop_type_t¶

Bluetooth Device Property type.

Values:

ESP_BT_GAP_DEV_PROP_BDNAME = 1¶: Bluetooth device name, value type is int8_t []

ESP_BT_GAP_DEV_PROP_COD¶: Class of Device, value type is uint32_t

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

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:

ESP_BT_COD_SRVC_NONE = 0¶: None indicates an invalid value

ESP_BT_COD_SRVC_LMTD_DISCOVER = 0x1¶: Limited Discoverable Mode

ESP_BT_COD_SRVC_POSITIONING = 0x8¶: Positioning (Location identification)

ESP_BT_COD_SRVC_NETWORKING = 0x10¶: Networking, e.g. LAN, Ad hoc

ESP_BT_COD_SRVC_RENDERING = 0x20¶: Rendering, e.g. Printing, Speakers

ESP_BT_COD_SRVC_CAPTURING = 0x40¶: Capturing, e.g. Scanner, Microphone

ESP_BT_COD_SRVC_OBJ_TRANSFER = 0x80¶: Object Transfer, e.g. v-Inbox, v-Folder

ESP_BT_COD_SRVC_AUDIO = 0x100¶: Audio, e.g. Speaker, Microphone, Headset service

ESP_BT_COD_SRVC_TELEPHONY = 0x200¶: Telephony, e.g. Cordless telephony, Modem, Headset service

ESP_BT_COD_SRVC_INFORMATION = 0x400¶: Information, e.g., WEB-server, WAP-server

enum esp_bt_pin_type_t¶

Values:

ESP_BT_PIN_TYPE_VARIABLE = 0¶: Refer to BTM_PIN_TYPE_VARIABLE

ESP_BT_PIN_TYPE_FIXED = 1¶: Refer to BTM_PIN_TYPE_FIXED

enum esp_bt_sp_param_t¶

Values:

ESP_BT_SP_IOCAP_MODE = 0¶: Set IO mode

enum esp_bt_cod_major_dev_t¶

Major device class field of Class of Device.

Values:

ESP_BT_COD_MAJOR_DEV_MISC = 0¶: Miscellaneous

ESP_BT_COD_MAJOR_DEV_COMPUTER = 1¶: Computer

ESP_BT_COD_MAJOR_DEV_PHONE = 2¶: Phone(cellular, cordless, pay phone, modem

ESP_BT_COD_MAJOR_DEV_LAN_NAP = 3¶: LAN, Network Access Point

ESP_BT_COD_MAJOR_DEV_AV = 4¶: Audio/Video(headset, speaker, stereo, video display, VCR

ESP_BT_COD_MAJOR_DEV_PERIPHERAL = 5¶: Peripheral(mouse, joystick, keyboard)

ESP_BT_COD_MAJOR_DEV_IMAGING = 6¶: Imaging(printer, scanner, camera, display

ESP_BT_COD_MAJOR_DEV_WEARABLE = 7¶: Wearable

ESP_BT_COD_MAJOR_DEV_TOY = 8¶: Toy

ESP_BT_COD_MAJOR_DEV_HEALTH = 9¶: Health

ESP_BT_COD_MAJOR_DEV_UNCATEGORIZED = 31¶: Uncategorized: device not specified

enum esp_bt_gap_discovery_state_t¶

Bluetooth Device Discovery state

Values:

ESP_BT_GAP_DISCOVERY_STOPPED¶: Device discovery stopped

ESP_BT_GAP_DISCOVERY_STARTED¶: Device discovery started

enum esp_bt_gap_cb_event_t¶

BT GAP callback events.

Values:

ESP_BT_GAP_DISC_RES_EVT = 0¶: Device discovery result event

ESP_BT_GAP_DISC_STATE_CHANGED_EVT¶: Discovery state changed event

ESP_BT_GAP_RMT_SRVCS_EVT¶: Get remote services event

ESP_BT_GAP_RMT_SRVC_REC_EVT¶: Get remote service record event

ESP_BT_GAP_AUTH_CMPL_EVT¶: Authentication complete event

ESP_BT_GAP_PIN_REQ_EVT¶: Legacy Pairing Pin code request

ESP_BT_GAP_CFM_REQ_EVT¶: Security Simple Pairing User Confirmation request.

ESP_BT_GAP_KEY_NOTIF_EVT¶: Security Simple Pairing Passkey Notification

ESP_BT_GAP_KEY_REQ_EVT¶: Security Simple Pairing Passkey request

ESP_BT_GAP_READ_RSSI_DELTA_EVT¶: Read rssi event

ESP_BT_GAP_CONFIG_EIR_DATA_EVT¶: Config EIR data event

ESP_BT_GAP_SET_AFH_CHANNELS_EVT¶: Set AFH channels event

ESP_BT_GAP_READ_REMOTE_NAME_EVT¶: Read Remote Name event

ESP_BT_GAP_MODE_CHG_EVT¶

ESP_BT_GAP_REMOVE_BOND_DEV_COMPLETE_EVT¶: remove bond device complete event

ESP_BT_GAP_QOS_CMPL_EVT¶: QOS complete event

ESP_BT_GAP_ACL_CONN_CMPL_STAT_EVT¶: ACL connection complete status event

ESP_BT_GAP_ACL_DISCONN_CMPL_STAT_EVT¶: ACL disconnection complete status event

ESP_BT_GAP_EVT_MAX¶

enum esp_bt_inq_mode_t¶

Inquiry Mode

Values:

ESP_BT_INQ_MODE_GENERAL_INQUIRY¶: General inquiry mode

ESP_BT_INQ_MODE_LIMITED_INQUIRY¶: Limited inquiry mode

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