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arduino-esp32/tools/sdk/include/bluedroid/esp_gap_ble_api.h
Me No Dev 600f4c4130
Update IDF to 1c3dd23 
* Update mDNS and LEDC

* update toolchain

* Update IDF to 1c3dd23

* Advertise the board variant for Arduino OTA

* Add generic variant definition for mDNS
2018-01-18 00:56:58 +02:00

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// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
//
// 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.
#ifndef __ESP_GAP_BLE_API_H__
#define __ESP_GAP_BLE_API_H__
#include <stdint.h>
#include <stdbool.h>
#include "esp_err.h"
#include "esp_bt_defs.h"
#ifdef __cplusplus
extern "C" {
#endif
/**@{
* BLE_ADV_DATA_FLAG data flag bit definition used for advertising data flag
*/
#define ESP_BLE_ADV_FLAG_LIMIT_DISC (0x01 << 0)
#define ESP_BLE_ADV_FLAG_GEN_DISC (0x01 << 1)
#define ESP_BLE_ADV_FLAG_BREDR_NOT_SPT (0x01 << 2)
#define ESP_BLE_ADV_FLAG_DMT_CONTROLLER_SPT (0x01 << 3)
#define ESP_BLE_ADV_FLAG_DMT_HOST_SPT (0x01 << 4)
#define ESP_BLE_ADV_FLAG_NON_LIMIT_DISC (0x00 )
/**
* @}
*/
/* relate to BTM_LE_KEY_xxx in btm_api.h */
#define ESP_LE_KEY_NONE 0 /* relate to BTM_LE_KEY_NONE in btm_api.h */
#define ESP_LE_KEY_PENC (1 << 0) /*!< encryption key, encryption information of peer device */ /* relate to BTM_LE_KEY_PENC in btm_api.h */
#define ESP_LE_KEY_PID (1 << 1) /*!< identity key of the peer device */ /* relate to BTM_LE_KEY_PID in btm_api.h */
#define ESP_LE_KEY_PCSRK (1 << 2) /*!< peer SRK */ /* relate to BTM_LE_KEY_PCSRK in btm_api.h */
#define ESP_LE_KEY_PLK (1 << 3) /*!< Link key*/ /* relate to BTM_LE_KEY_PLK in btm_api.h */
#define ESP_LE_KEY_LLK (ESP_LE_KEY_PLK << 4) /* relate to BTM_LE_KEY_LLK in btm_api.h */
#define ESP_LE_KEY_LENC (ESP_LE_KEY_PENC << 4) /*!< master role security information:div */ /* relate to BTM_LE_KEY_LENC in btm_api.h */
#define ESP_LE_KEY_LID (ESP_LE_KEY_PID << 4) /*!< master device ID key */ /* relate to BTM_LE_KEY_LID in btm_api.h */
#define ESP_LE_KEY_LCSRK (ESP_LE_KEY_PCSRK << 4) /*!< local CSRK has been deliver to peer */ /* relate to BTM_LE_KEY_LCSRK in btm_api.h */
typedef uint8_t esp_ble_key_type_t;
/* relate to BTM_LE_AUTH_xxx in btm_api.h */
#define ESP_LE_AUTH_NO_BOND 0x00 /*!< 0*/ /* relate to BTM_LE_AUTH_NO_BOND in btm_api.h */
#define ESP_LE_AUTH_BOND 0x01 /*!< 1 << 0 */ /* relate to BTM_LE_AUTH_BOND in btm_api.h */
#define ESP_LE_AUTH_REQ_MITM (1 << 2) /*!< 1 << 2 */ /* relate to BTM_LE_AUTH_REQ_MITM in btm_api.h */
#define ESP_LE_AUTH_REQ_SC_ONLY (1 << 3) /*!< 1 << 3 */ /* relate to BTM_LE_AUTH_REQ_SC_ONLY in btm_api.h */
#define ESP_LE_AUTH_REQ_SC_BOND (ESP_LE_AUTH_BOND | ESP_LE_AUTH_REQ_SC_ONLY) /*!< 1001 */ /* relate to BTM_LE_AUTH_REQ_SC_BOND in btm_api.h */
#define ESP_LE_AUTH_REQ_SC_MITM (ESP_LE_AUTH_REQ_MITM | ESP_LE_AUTH_REQ_SC_ONLY) /*!< 1100 */ /* relate to BTM_LE_AUTH_REQ_SC_MITM in btm_api.h */
#define ESP_LE_AUTH_REQ_SC_MITM_BOND (ESP_LE_AUTH_REQ_MITM | ESP_LE_AUTH_REQ_SC_ONLY | ESP_LE_AUTH_BOND) /*!< 1101 */ /* relate to BTM_LE_AUTH_REQ_SC_MITM_BOND in btm_api.h */
typedef uint8_t esp_ble_auth_req_t; /*!< combination of the above bit pattern */
/* relate to BTM_IO_CAP_xxx in btm_api.h */
#define ESP_IO_CAP_OUT 0 /*!< DisplayOnly */ /* relate to BTM_IO_CAP_OUT in btm_api.h */
#define ESP_IO_CAP_IO 1 /*!< DisplayYesNo */ /* relate to BTM_IO_CAP_IO in btm_api.h */
#define ESP_IO_CAP_IN 2 /*!< KeyboardOnly */ /* relate to BTM_IO_CAP_IN in btm_api.h */
#define ESP_IO_CAP_NONE 3 /*!< NoInputNoOutput */ /* relate to BTM_IO_CAP_NONE in btm_api.h */
#define ESP_IO_CAP_KBDISP 4 /*!< Keyboard display */ /* relate to BTM_IO_CAP_KBDISP in btm_api.h */
typedef uint8_t esp_ble_io_cap_t; /*!< combination of the io capability */
/// GAP BLE callback event type
typedef enum {
ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT = 0, /*!< When advertising data set complete, the event comes */
ESP_GAP_BLE_SCAN_RSP_DATA_SET_COMPLETE_EVT, /*!< When scan response data set complete, the event comes */
ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT, /*!< When scan parameters set complete, the event comes */
ESP_GAP_BLE_SCAN_RESULT_EVT, /*!< When one scan result ready, the event comes each time */
ESP_GAP_BLE_ADV_DATA_RAW_SET_COMPLETE_EVT, /*!< When raw advertising data set complete, the event comes */
ESP_GAP_BLE_SCAN_RSP_DATA_RAW_SET_COMPLETE_EVT, /*!< When raw advertising data set complete, the event comes */
ESP_GAP_BLE_ADV_START_COMPLETE_EVT, /*!< When start advertising complete, the event comes */
ESP_GAP_BLE_SCAN_START_COMPLETE_EVT, /*!< When start scan complete, the event comes */
ESP_GAP_BLE_AUTH_CMPL_EVT, /* Authentication complete indication. */
ESP_GAP_BLE_KEY_EVT, /* BLE key event for peer device keys */
ESP_GAP_BLE_SEC_REQ_EVT, /* BLE security request */
ESP_GAP_BLE_PASSKEY_NOTIF_EVT, /* passkey notification event */
ESP_GAP_BLE_PASSKEY_REQ_EVT, /* passkey request event */
ESP_GAP_BLE_OOB_REQ_EVT, /* OOB request event */
ESP_GAP_BLE_LOCAL_IR_EVT, /* BLE local IR event */
ESP_GAP_BLE_LOCAL_ER_EVT, /* BLE local ER event */
ESP_GAP_BLE_NC_REQ_EVT, /* Numeric Comparison request event */
ESP_GAP_BLE_ADV_STOP_COMPLETE_EVT, /*!< When stop adv complete, the event comes */
ESP_GAP_BLE_SCAN_STOP_COMPLETE_EVT, /*!< When stop scan complete, the event comes */
ESP_GAP_BLE_SET_STATIC_RAND_ADDR_EVT, /*!< When set the static rand address complete, the event comes */
ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT, /*!< When update connection parameters complete, the event comes */
ESP_GAP_BLE_SET_PKT_LENGTH_COMPLETE_EVT, /*!< When set pkt lenght complete, the event comes */
ESP_GAP_BLE_SET_LOCAL_PRIVACY_COMPLETE_EVT, /*!< When Enable/disable privacy on the local device complete, the event comes */
ESP_GAP_BLE_REMOVE_BOND_DEV_COMPLETE_EVT, /*!< When remove the bond device complete, the event comes */
ESP_GAP_BLE_CLEAR_BOND_DEV_COMPLETE_EVT, /*!< When clear the bond device clear complete, the event comes */
ESP_GAP_BLE_GET_BOND_DEV_COMPLETE_EVT, /*!< When get the bond device list complete, the event comes */
ESP_GAP_BLE_READ_RSSI_COMPLETE_EVT, /*!< When read the rssi complete, the event comes */
ESP_GAP_BLE_UPDATE_WHITELIST_COMPLETE_EVT, /*!< When add or remove whitelist complete, the event comes */
ESP_GAP_BLE_EVT_MAX,
} esp_gap_ble_cb_event_t;
/// This is the old name, just for backwards compatibility
#define ESP_GAP_BLE_ADD_WHITELIST_COMPLETE_EVT ESP_GAP_BLE_UPDATE_WHITELIST_COMPLETE_EVT
/// Advertising data maximum length
#define ESP_BLE_ADV_DATA_LEN_MAX 31
/// Scan response data maximum length
#define ESP_BLE_SCAN_RSP_DATA_LEN_MAX 31
/* relate to BTM_BLE_AD_TYPE_xxx in btm_ble_api.h */
/// The type of advertising data(not adv_type)
typedef enum {
ESP_BLE_AD_TYPE_FLAG = 0x01, /* relate to BTM_BLE_AD_TYPE_FLAG in btm_ble_api.h */
ESP_BLE_AD_TYPE_16SRV_PART = 0x02, /* relate to BTM_BLE_AD_TYPE_16SRV_PART in btm_ble_api.h */
ESP_BLE_AD_TYPE_16SRV_CMPL = 0x03, /* relate to BTM_BLE_AD_TYPE_16SRV_CMPL in btm_ble_api.h */
ESP_BLE_AD_TYPE_32SRV_PART = 0x04, /* relate to BTM_BLE_AD_TYPE_32SRV_PART in btm_ble_api.h */
ESP_BLE_AD_TYPE_32SRV_CMPL = 0x05, /* relate to BTM_BLE_AD_TYPE_32SRV_CMPL in btm_ble_api.h */
ESP_BLE_AD_TYPE_128SRV_PART = 0x06, /* relate to BTM_BLE_AD_TYPE_128SRV_PART in btm_ble_api.h */
ESP_BLE_AD_TYPE_128SRV_CMPL = 0x07, /* relate to BTM_BLE_AD_TYPE_128SRV_CMPL in btm_ble_api.h */
ESP_BLE_AD_TYPE_NAME_SHORT = 0x08, /* relate to BTM_BLE_AD_TYPE_NAME_SHORT in btm_ble_api.h */
ESP_BLE_AD_TYPE_NAME_CMPL = 0x09, /* relate to BTM_BLE_AD_TYPE_NAME_CMPL in btm_ble_api.h */
ESP_BLE_AD_TYPE_TX_PWR = 0x0A, /* relate to BTM_BLE_AD_TYPE_TX_PWR in btm_ble_api.h */
ESP_BLE_AD_TYPE_DEV_CLASS = 0x0D, /* relate to BTM_BLE_AD_TYPE_DEV_CLASS in btm_ble_api.h */
ESP_BLE_AD_TYPE_SM_TK = 0x10, /* relate to BTM_BLE_AD_TYPE_SM_TK in btm_ble_api.h */
ESP_BLE_AD_TYPE_SM_OOB_FLAG = 0x11, /* relate to BTM_BLE_AD_TYPE_SM_OOB_FLAG in btm_ble_api.h */
ESP_BLE_AD_TYPE_INT_RANGE = 0x12, /* relate to BTM_BLE_AD_TYPE_INT_RANGE in btm_ble_api.h */
ESP_BLE_AD_TYPE_SOL_SRV_UUID = 0x14, /* relate to BTM_BLE_AD_TYPE_SOL_SRV_UUID in btm_ble_api.h */
ESP_BLE_AD_TYPE_128SOL_SRV_UUID = 0x15, /* relate to BTM_BLE_AD_TYPE_128SOL_SRV_UUID in btm_ble_api.h */
ESP_BLE_AD_TYPE_SERVICE_DATA = 0x16, /* relate to BTM_BLE_AD_TYPE_SERVICE_DATA in btm_ble_api.h */
ESP_BLE_AD_TYPE_PUBLIC_TARGET = 0x17, /* relate to BTM_BLE_AD_TYPE_PUBLIC_TARGET in btm_ble_api.h */
ESP_BLE_AD_TYPE_RANDOM_TARGET = 0x18, /* relate to BTM_BLE_AD_TYPE_RANDOM_TARGET in btm_ble_api.h */
ESP_BLE_AD_TYPE_APPEARANCE = 0x19, /* relate to BTM_BLE_AD_TYPE_APPEARANCE in btm_ble_api.h */
ESP_BLE_AD_TYPE_ADV_INT = 0x1A, /* relate to BTM_BLE_AD_TYPE_ADV_INT in btm_ble_api.h */
ESP_BLE_AD_TYPE_LE_DEV_ADDR = 0x1b, /* relate to BTM_BLE_AD_TYPE_LE_DEV_ADDR in btm_ble_api.h */
ESP_BLE_AD_TYPE_LE_ROLE = 0x1c, /* relate to BTM_BLE_AD_TYPE_LE_ROLE in btm_ble_api.h */
ESP_BLE_AD_TYPE_SPAIR_C256 = 0x1d, /* relate to BTM_BLE_AD_TYPE_SPAIR_C256 in btm_ble_api.h */
ESP_BLE_AD_TYPE_SPAIR_R256 = 0x1e, /* relate to BTM_BLE_AD_TYPE_SPAIR_R256 in btm_ble_api.h */
ESP_BLE_AD_TYPE_32SOL_SRV_UUID = 0x1f, /* relate to BTM_BLE_AD_TYPE_32SOL_SRV_UUID in btm_ble_api.h */
ESP_BLE_AD_TYPE_32SERVICE_DATA = 0x20, /* relate to BTM_BLE_AD_TYPE_32SERVICE_DATA in btm_ble_api.h */
ESP_BLE_AD_TYPE_128SERVICE_DATA = 0x21, /* relate to BTM_BLE_AD_TYPE_128SERVICE_DATA in btm_ble_api.h */
ESP_BLE_AD_TYPE_LE_SECURE_CONFIRM = 0x22, /* relate to BTM_BLE_AD_TYPE_LE_SECURE_CONFIRM in btm_ble_api.h */
ESP_BLE_AD_TYPE_LE_SECURE_RANDOM = 0x23, /* relate to BTM_BLE_AD_TYPE_LE_SECURE_RANDOM in btm_ble_api.h */
ESP_BLE_AD_TYPE_URI = 0x24, /* relate to BTM_BLE_AD_TYPE_URI in btm_ble_api.h */
ESP_BLE_AD_TYPE_INDOOR_POSITION = 0x25, /* relate to BTM_BLE_AD_TYPE_INDOOR_POSITION in btm_ble_api.h */
ESP_BLE_AD_TYPE_TRANS_DISC_DATA = 0x26, /* relate to BTM_BLE_AD_TYPE_TRANS_DISC_DATA in btm_ble_api.h */
ESP_BLE_AD_TYPE_LE_SUPPORT_FEATURE = 0x27, /* relate to BTM_BLE_AD_TYPE_LE_SUPPORT_FEATURE in btm_ble_api.h */
ESP_BLE_AD_TYPE_CHAN_MAP_UPDATE = 0x28, /* relate to BTM_BLE_AD_TYPE_CHAN_MAP_UPDATE in btm_ble_api.h */
ESP_BLE_AD_MANUFACTURER_SPECIFIC_TYPE = 0xFF, /* relate to BTM_BLE_AD_MANUFACTURER_SPECIFIC_TYPE in btm_ble_api.h */
} esp_ble_adv_data_type;
/// Advertising mode
typedef enum {
ADV_TYPE_IND = 0x00,
ADV_TYPE_DIRECT_IND_HIGH = 0x01,
ADV_TYPE_SCAN_IND = 0x02,
ADV_TYPE_NONCONN_IND = 0x03,
ADV_TYPE_DIRECT_IND_LOW = 0x04,
} esp_ble_adv_type_t;
/// Advertising channel mask
typedef enum {
ADV_CHNL_37 = 0x01,
ADV_CHNL_38 = 0x02,
ADV_CHNL_39 = 0x04,
ADV_CHNL_ALL = 0x07,
} esp_ble_adv_channel_t;
typedef enum {
///Allow both scan and connection requests from anyone
ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY = 0x00,
///Allow both scan req from White List devices only and connection req from anyone
ADV_FILTER_ALLOW_SCAN_WLST_CON_ANY,
///Allow both scan req from anyone and connection req from White List devices only
ADV_FILTER_ALLOW_SCAN_ANY_CON_WLST,
///Allow scan and connection requests from White List devices only
ADV_FILTER_ALLOW_SCAN_WLST_CON_WLST,
///Enumeration end value for advertising filter policy value check
} esp_ble_adv_filter_t;
/* relate to BTA_DM_BLE_SEC_xxx in bta_api.h */
typedef enum {
ESP_BLE_SEC_ENCRYPT = 1, /* relate to BTA_DM_BLE_SEC_ENCRYPT in bta_api.h. If the device has already
bonded, the stack will used LTK to encrypt with the remote device directly.
Else if the device hasn't bonded, the stack will used the default authentication request
used the esp_ble_gap_set_security_param function set by the user. */
ESP_BLE_SEC_ENCRYPT_NO_MITM, /* relate to BTA_DM_BLE_SEC_ENCRYPT_NO_MITM in bta_api.h. If the device has already
bonded, the stack will check the LTK Whether the authentication request has been met, if met, used the LTK
to encrypt with the remote device directly, else Re-pair with the remote device.
Else if the device hasn't bonded, the stack will used NO MITM authentication request in the current link instead of
used the authreq in the esp_ble_gap_set_security_param function set by the user. */
ESP_BLE_SEC_ENCRYPT_MITM, /* relate to BTA_DM_BLE_SEC_ENCRYPT_MITM in bta_api.h. If the device has already
bonded, the stack will check the LTK Whether the authentication request has been met, if met, used the LTK
to encrypt with the remote device directly, else Re-pair with the remote device.
Else if the device hasn't bonded, the stack will used MITM authentication request in the current link instead of
used the authreq in the esp_ble_gap_set_security_param function set by the user. */
}esp_ble_sec_act_t;
typedef enum {
ESP_BLE_SM_PASSKEY = 0,
ESP_BLE_SM_AUTHEN_REQ_MODE,
ESP_BLE_SM_IOCAP_MODE,
ESP_BLE_SM_SET_INIT_KEY,
ESP_BLE_SM_SET_RSP_KEY,
ESP_BLE_SM_MAX_KEY_SIZE,
} esp_ble_sm_param_t;
/// Advertising parameters
typedef struct {
uint16_t adv_int_min; /*!< Minimum advertising interval for
undirected and low duty cycle directed advertising.
Range: 0x0020 to 0x4000 Default: N = 0x0800 (1.28 second)
Time = N * 0.625 msec Time Range: 20 ms to 10.24 sec */
uint16_t adv_int_max; /*!< Maximum advertising interval for
undirected and low duty cycle directed advertising.
Range: 0x0020 to 0x4000 Default: N = 0x0800 (1.28 second)
Time = N * 0.625 msec Time Range: 20 ms to 10.24 sec Advertising max interval */
esp_ble_adv_type_t adv_type; /*!< Advertising type */
esp_ble_addr_type_t own_addr_type; /*!< Owner bluetooth device address type */
esp_bd_addr_t peer_addr; /*!< Peer device bluetooth device address */
esp_ble_addr_type_t peer_addr_type; /*!< Peer device bluetooth device address type */
esp_ble_adv_channel_t channel_map; /*!< Advertising channel map */
esp_ble_adv_filter_t adv_filter_policy; /*!< Advertising filter policy */
} esp_ble_adv_params_t;
/// Advertising data content, according to "Supplement to the Bluetooth Core Specification"
typedef struct {
bool set_scan_rsp; /*!< Set this advertising data as scan response or not*/
bool include_name; /*!< Advertising data include device name or not */
bool include_txpower; /*!< Advertising data include TX power */
int min_interval; /*!< Advertising data show advertising min interval */
int max_interval; /*!< Advertising data show advertising max interval */
int appearance; /*!< External appearance of device */
uint16_t manufacturer_len; /*!< Manufacturer data length */
uint8_t *p_manufacturer_data; /*!< Manufacturer data point */
uint16_t service_data_len; /*!< Service data length */
uint8_t *p_service_data; /*!< Service data point */
uint16_t service_uuid_len; /*!< Service uuid length */
uint8_t *p_service_uuid; /*!< Service uuid array point */
uint8_t flag; /*!< Advertising flag of discovery mode, see BLE_ADV_DATA_FLAG detail */
} esp_ble_adv_data_t;
/// Ble scan type
typedef enum {
BLE_SCAN_TYPE_PASSIVE = 0x0, /*!< Passive scan */
BLE_SCAN_TYPE_ACTIVE = 0x1, /*!< Active scan */
} esp_ble_scan_type_t;
/// Ble scan filter type
typedef enum {
BLE_SCAN_FILTER_ALLOW_ALL = 0x0, /*!< Accept all :
1. advertisement packets except directed advertising packets not addressed to this device (default). */
BLE_SCAN_FILTER_ALLOW_ONLY_WLST = 0x1, /*!< Accept only :
1. advertisement packets from devices where the advertiser’s address is in the White list.
2. Directed advertising packets which are not addressed for this device shall be ignored. */
BLE_SCAN_FILTER_ALLOW_UND_RPA_DIR = 0x2, /*!< Accept all :
1. undirected advertisement packets, and
2. directed advertising packets where the initiator address is a resolvable private address, and
3. directed advertising packets addressed to this device. */
BLE_SCAN_FILTER_ALLOW_WLIST_PRA_DIR = 0x3, /*!< Accept all :
1. advertisement packets from devices where the advertiser’s address is in the White list, and
2. directed advertising packets where the initiator address is a resolvable private address, and
3. directed advertising packets addressed to this device.*/
} esp_ble_scan_filter_t;
/// Ble scan parameters
typedef struct {
esp_ble_scan_type_t scan_type; /*!< Scan type */
esp_ble_addr_type_t own_addr_type; /*!< Owner address type */
esp_ble_scan_filter_t scan_filter_policy; /*!< Scan filter policy */
uint16_t scan_interval; /*!< Scan interval. This is defined as the time interval from
when the Controller started its last LE scan until it begins the subsequent LE scan.
Range: 0x0004 to 0x4000 Default: 0x0010 (10 ms)
Time = N * 0.625 msec
Time Range: 2.5 msec to 10.24 seconds*/
uint16_t scan_window; /*!< Scan window. The duration of the LE scan. LE_Scan_Window
shall be less than or equal to LE_Scan_Interval
Range: 0x0004 to 0x4000 Default: 0x0010 (10 ms)
Time = N * 0.625 msec
Time Range: 2.5 msec to 10240 msec */
} esp_ble_scan_params_t;
/// Connection update parameters
typedef struct {
esp_bd_addr_t bda; /*!< Bluetooth device address */
uint16_t min_int; /*!< Min connection interval */
uint16_t max_int; /*!< Max connection interval */
uint16_t latency; /*!< Slave latency for the connection in number of connection events. Range: 0x0000 to 0x01F3 */
uint16_t timeout; /*!< Supervision timeout for the LE Link. Range: 0x000A to 0x0C80.
Mandatory Range: 0x000A to 0x0C80 Time = N * 10 msec
Time Range: 100 msec to 32 seconds */
} esp_ble_conn_update_params_t;
/**
* @brief BLE pkt date length keys
*/
typedef struct
{
uint16_t rx_len; /*!< pkt rx data length value */
uint16_t tx_len; /*!< pkt tx data length value */
}esp_ble_pkt_data_length_params_t;
/**
* @brief BLE encryption keys
*/
typedef struct
{
esp_bt_octet16_t ltk; /*!< The long term key*/
esp_bt_octet8_t rand; /*!< The random number*/
uint16_t ediv; /*!< The ediv value*/
uint8_t sec_level; /*!< The security level of the security link*/
uint8_t key_size; /*!< The key size(7~16) of the security link*/
} esp_ble_penc_keys_t; /*!< The key type*/
/**
* @brief BLE CSRK keys
*/
typedef struct
{
uint32_t counter; /*!< The counter */
esp_bt_octet16_t csrk; /*!< The csrk key */
uint8_t sec_level; /*!< The security level */
} esp_ble_pcsrk_keys_t; /*!< The pcsrk key type */
/**
* @brief BLE pid keys
*/
typedef struct
{
esp_bt_octet16_t irk; /*!< The irk value */
esp_ble_addr_type_t addr_type; /*!< The address type */
esp_bd_addr_t static_addr; /*!< The static address */
} esp_ble_pid_keys_t; /*!< The pid key type */
/**
* @brief BLE Encryption reproduction keys
*/
typedef struct
{
esp_bt_octet16_t ltk; /*!< The long term key */
uint16_t div; /*!< The div value */
uint8_t key_size; /*!< The key size of the security link */
uint8_t sec_level; /*!< The security level of the security link */
} esp_ble_lenc_keys_t; /*!< The key type */
/**
* @brief BLE SRK keys
*/
typedef struct
{
uint32_t counter; /*!< The counter value */
uint16_t div; /*!< The div value */
uint8_t sec_level; /*!< The security level of the security link */
esp_bt_octet16_t csrk; /*!< The csrk key value */
} esp_ble_lcsrk_keys; /*!< The csrk key type */
/**
* @brief Structure associated with ESP_KEY_NOTIF_EVT
*/
typedef struct
{
esp_bd_addr_t bd_addr; /*!< peer address */
uint32_t passkey; /*!< the numeric value for comparison. If just_works, do not show this number to UI */
} esp_ble_sec_key_notif_t; /*!< BLE key notify type*/
/**
* @brief Structure of the security request
*/
typedef struct
{
esp_bd_addr_t bd_addr; /*!< peer address */
} esp_ble_sec_req_t; /*!< BLE security request type*/
/**
* @brief union type of the security key value
*/
typedef union
{
esp_ble_penc_keys_t penc_key; /*!< received peer encryption key */
esp_ble_pcsrk_keys_t pcsrk_key; /*!< received peer device SRK */
esp_ble_pid_keys_t pid_key; /*!< peer device ID key */
esp_ble_lenc_keys_t lenc_key; /*!< local encryption reproduction keys LTK = = d1(ER,DIV,0)*/
esp_ble_lcsrk_keys lcsrk_key; /*!< local device CSRK = d1(ER,DIV,1)*/
} esp_ble_key_value_t; /*!< ble key value type*/
/**
* @brief struct type of the bond key informatuon value
*/
typedef struct
{
esp_ble_key_mask_t key_mask; /*!< the key mask to indicate witch key is present */
esp_ble_penc_keys_t penc_key; /*!< received peer encryption key */
esp_ble_pcsrk_keys_t pcsrk_key; /*!< received peer device SRK */
esp_ble_pid_keys_t pid_key; /*!< peer device ID key */
} esp_ble_bond_key_info_t; /*!< ble bond key information value type */
/**
* @brief struct type of the bond device value
*/
typedef struct
{
esp_bd_addr_t bd_addr; /*!< peer address */
esp_ble_bond_key_info_t bond_key; /*!< the bond key information */
} esp_ble_bond_dev_t; /*!< the ble bond device type */
/**
* @brief union type of the security key value
*/
typedef struct
{
esp_bd_addr_t bd_addr; /*!< peer address */
esp_ble_key_type_t key_type; /*!< key type of the security link */
esp_ble_key_value_t p_key_value; /*!< the pointer to the key value */
} esp_ble_key_t; /*!< the union to the ble key value type*/
/**
* @brief structure type of the ble local id keys value
*/
typedef struct {
esp_bt_octet16_t ir; /*!< the 16 bits of the ir value */
esp_bt_octet16_t irk; /*!< the 16 bits of the ir key value */
esp_bt_octet16_t dhk; /*!< the 16 bits of the dh key value */
} esp_ble_local_id_keys_t; /*!< the structure of the ble local id keys value type*/
/**
* @brief Structure associated with ESP_AUTH_CMPL_EVT
*/
typedef struct
{
esp_bd_addr_t bd_addr; /*!< BD address peer device. */
bool key_present; /*!< Valid link key value in key element */
esp_link_key key; /*!< Link key associated with peer device. */
uint8_t key_type; /*!< The type of Link Key */
bool success; /*!< TRUE of authentication succeeded, FALSE if failed. */
uint8_t fail_reason; /*!< The HCI reason/error code for when success=FALSE */
esp_ble_addr_type_t addr_type; /*!< Peer device address type */
esp_bt_dev_type_t dev_type; /*!< Device type */
} esp_ble_auth_cmpl_t; /*!< The ble authentication complite cb type */
/**
* @brief union associated with ble security
*/
typedef union
{
esp_ble_sec_key_notif_t key_notif; /*!< passkey notification */
esp_ble_sec_req_t ble_req; /*!< BLE SMP related request */
esp_ble_key_t ble_key; /*!< BLE SMP keys used when pairing */
esp_ble_local_id_keys_t ble_id_keys; /*!< BLE IR event */
esp_ble_auth_cmpl_t auth_cmpl; /*!< Authentication complete indication. */
} esp_ble_sec_t; /*!< Ble secutity type */
/// Sub Event of ESP_GAP_BLE_SCAN_RESULT_EVT
typedef enum {
ESP_GAP_SEARCH_INQ_RES_EVT = 0, /*!< Inquiry result for a peer device. */
ESP_GAP_SEARCH_INQ_CMPL_EVT = 1, /*!< Inquiry complete. */
ESP_GAP_SEARCH_DISC_RES_EVT = 2, /*!< Discovery result for a peer device. */
ESP_GAP_SEARCH_DISC_BLE_RES_EVT = 3, /*!< Discovery result for BLE GATT based service on a peer device. */
ESP_GAP_SEARCH_DISC_CMPL_EVT = 4, /*!< Discovery complete. */
ESP_GAP_SEARCH_DI_DISC_CMPL_EVT = 5, /*!< Discovery complete. */
ESP_GAP_SEARCH_SEARCH_CANCEL_CMPL_EVT = 6, /*!< Search cancelled */
} esp_gap_search_evt_t;
/**
* @brief Ble scan result event type, to indicate the
* result is scan response or advertising data or other
*/
typedef enum {
ESP_BLE_EVT_CONN_ADV = 0x00, /*!< Connectable undirected advertising (ADV_IND) */
ESP_BLE_EVT_CONN_DIR_ADV = 0x01, /*!< Connectable directed advertising (ADV_DIRECT_IND) */
ESP_BLE_EVT_DISC_ADV = 0x02, /*!< Scannable undirected advertising (ADV_SCAN_IND) */
ESP_BLE_EVT_NON_CONN_ADV = 0x03, /*!< Non connectable undirected advertising (ADV_NONCONN_IND) */
ESP_BLE_EVT_SCAN_RSP = 0x04, /*!< Scan Response (SCAN_RSP) */
} esp_ble_evt_type_t;
typedef enum{
ESP_BLE_WHITELIST_REMOVE = 0X00, /*!< remove mac from whitelist */
ESP_BLE_WHITELIST_ADD = 0X01, /*!< add address to whitelist */
}esp_ble_wl_opration_t;
/**
* @brief Gap callback parameters union
*/
typedef union {
/**
* @brief ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT
*/
struct ble_adv_data_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate the set advertising data operation success status */
} adv_data_cmpl; /*!< Event parameter of ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT */
/**
* @brief ESP_GAP_BLE_SCAN_RSP_DATA_SET_COMPLETE_EVT
*/
struct ble_scan_rsp_data_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate the set scan response data operation success status */
} scan_rsp_data_cmpl; /*!< Event parameter of ESP_GAP_BLE_SCAN_RSP_DATA_SET_COMPLETE_EVT */
/**
* @brief ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT
*/
struct ble_scan_param_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate the set scan param operation success status */
} scan_param_cmpl; /*!< Event parameter of ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT */
/**
* @brief ESP_GAP_BLE_SCAN_RESULT_EVT
*/
struct ble_scan_result_evt_param {
esp_gap_search_evt_t search_evt; /*!< Search event type */
esp_bd_addr_t bda; /*!< Bluetooth device address which has been searched */
esp_bt_dev_type_t dev_type; /*!< Device type */
esp_ble_addr_type_t ble_addr_type; /*!< Ble device address type */
esp_ble_evt_type_t ble_evt_type; /*!< Ble scan result event type */
int rssi; /*!< Searched device's RSSI */
uint8_t ble_adv[ESP_BLE_ADV_DATA_LEN_MAX + ESP_BLE_SCAN_RSP_DATA_LEN_MAX]; /*!< Received EIR */
int flag; /*!< Advertising data flag bit */
int num_resps; /*!< Scan result number */
uint8_t adv_data_len; /*!< Adv data length */
uint8_t scan_rsp_len; /*!< Scan response length */
} scan_rst; /*!< Event parameter of ESP_GAP_BLE_SCAN_RESULT_EVT */
/**
* @brief ESP_GAP_BLE_ADV_DATA_RAW_SET_COMPLETE_EVT
*/
struct ble_adv_data_raw_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate the set raw advertising data operation success status */
} adv_data_raw_cmpl; /*!< Event parameter of ESP_GAP_BLE_ADV_DATA_RAW_SET_COMPLETE_EVT */
/**
* @brief ESP_GAP_BLE_SCAN_RSP_DATA_RAW_SET_COMPLETE_EVT
*/
struct ble_scan_rsp_data_raw_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate the set raw advertising data operation success status */
} scan_rsp_data_raw_cmpl; /*!< Event parameter of ESP_GAP_BLE_SCAN_RSP_DATA_RAW_SET_COMPLETE_EVT */
/**
* @brief ESP_GAP_BLE_ADV_START_COMPLETE_EVT
*/
struct ble_adv_start_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate advertising start operation success status */
} adv_start_cmpl; /*!< Event parameter of ESP_GAP_BLE_ADV_START_COMPLETE_EVT */
/**
* @brief ESP_GAP_BLE_SCAN_START_COMPLETE_EVT
*/
struct ble_scan_start_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate scan start operation success status */
} scan_start_cmpl; /*!< Event parameter of ESP_GAP_BLE_SCAN_START_COMPLETE_EVT */
esp_ble_sec_t ble_security; /*!< ble gap security union type */
/**
* @brief ESP_GAP_BLE_SCAN_STOP_COMPLETE_EVT
*/
struct ble_scan_stop_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate scan stop operation success status */
} scan_stop_cmpl; /*!< Event parameter of ESP_GAP_BLE_SCAN_STOP_COMPLETE_EVT */
/**
* @brief ESP_GAP_BLE_ADV_STOP_COMPLETE_EVT
*/
struct ble_adv_stop_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate adv stop operation success status */
} adv_stop_cmpl; /*!< Event parameter of ESP_GAP_BLE_ADV_STOP_COMPLETE_EVT */
/**
* @brief ESP_GAP_BLE_SET_STATIC_RAND_ADDR_EVT
*/
struct ble_set_rand_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate set static rand address operation success status */
} set_rand_addr_cmpl; /*!< Event parameter of ESP_GAP_BLE_SET_STATIC_RAND_ADDR_EVT */
/**
* @brief ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT
*/
struct ble_update_conn_params_evt_param {
esp_bt_status_t status; /*!< Indicate update connection parameters success status */
esp_bd_addr_t bda; /*!< Bluetooth device address */
uint16_t min_int; /*!< Min connection interval */
uint16_t max_int; /*!< Max connection interval */
uint16_t latency; /*!< Slave latency for the connection in number of connection events. Range: 0x0000 to 0x01F3 */
uint16_t conn_int; /*!< Current connection interval */
uint16_t timeout; /*!< Supervision timeout for the LE Link. Range: 0x000A to 0x0C80.
Mandatory Range: 0x000A to 0x0C80 Time = N * 10 msec */
}update_conn_params; /*!< Event parameter of ESP_GAP_BLE_UPDATE_CONN_PARAMS_EVT */
/**
* @brief ESP_GAP_BLE_SET_PKT_LENGTH_COMPLETE_EVT
*/
struct ble_pkt_data_length_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate the set pkt data length operation success status */
esp_ble_pkt_data_length_params_t params; /*!< pkt data length value */
} pkt_data_lenth_cmpl; /*!< Event parameter of ESP_GAP_BLE_SET_PKT_LENGTH_COMPLETE_EVT */
/**
* @brief ESP_GAP_BLE_SET_LOCAL_PRIVACY_COMPLETE_EVT
*/
struct ble_local_privacy_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate the set local privacy operation success status */
} local_privacy_cmpl; /*!< Event parameter of ESP_GAP_BLE_SET_LOCAL_PRIVACY_COMPLETE_EVT */
/**
* @brief ESP_GAP_BLE_REMOVE_BOND_DEV_COMPLETE_EVT
*/
struct ble_remove_bond_dev_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate the remove bond device operation success status */
esp_bd_addr_t bd_addr; /*!< The device address which has been remove from the bond list */
}remove_bond_dev_cmpl; /*!< Event parameter of ESP_GAP_BLE_REMOVE_BOND_DEV_COMPLETE_EVT */
/**
* @brief ESP_GAP_BLE_CLEAR_BOND_DEV_COMPLETE_EVT
*/
struct ble_clear_bond_dev_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate the clear bond device operation success status */
}clear_bond_dev_cmpl; /*!< Event parameter of ESP_GAP_BLE_CLEAR_BOND_DEV_COMPLETE_EVT */
/**
* @brief ESP_GAP_BLE_GET_BOND_DEV_COMPLETE_EVT
*/
struct ble_get_bond_dev_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate the get bond device operation success status */
uint8_t dev_num; /*!< Indicate the get number device in the bond list */
esp_ble_bond_dev_t *bond_dev; /*!< the pointer to the bond device Structure */
}get_bond_dev_cmpl; /*!< Event parameter of ESP_GAP_BLE_GET_BOND_DEV_COMPLETE_EVT */
/**
* @brief ESP_GAP_BLE_READ_RSSI_COMPLETE_EVT
*/
struct ble_read_rssi_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate the read adv tx power operation success status */
int8_t rssi; /*!< The ble remote device rssi value, the range is from -127 to 20, the unit is dbm,
if the RSSI cannot be read, the RSSI metric shall be set to 127. */
esp_bd_addr_t remote_addr; /*!< The remote device address */
} read_rssi_cmpl; /*!< Event parameter of ESP_GAP_BLE_READ_RSSI_COMPLETE_EVT */
/**
* @brief ESP_GAP_BLE_UPDATE_WHITELIST_COMPLETE_EVT
*/
struct ble_update_whitelist_cmpl_evt_param {
esp_bt_status_t status; /*!< Indicate the add or remove whitelist operation success status */
esp_ble_wl_opration_t wl_opration; /*!< The value is ESP_BLE_WHITELIST_ADD if add address to whitelist operation success, ESP_BLE_WHITELIST_REMOVE if remove address from the whitelist operation success */
} update_whitelist_cmpl; /*!< Event parameter of ESP_GAP_BLE_UPDATE_WHITELIST_COMPLETE_EVT */
} esp_ble_gap_cb_param_t;
/**
* @brief GAP callback function type
* @param event : Event type
* @param param : Point to callback parameter, currently is union type
*/
typedef void (* esp_gap_ble_cb_t)(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param);
/**
* @brief This function is called to occur gap event, such as scan result
*
* @param[in] callback: callback function
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_register_callback(esp_gap_ble_cb_t callback);
/**
* @brief This function is called to override the BTA default ADV parameters.
*
* @param[in] adv_data: Pointer to User defined ADV data structure. This
* memory space can not be freed until callback of config_adv_data
* is received.
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_config_adv_data (esp_ble_adv_data_t *adv_data);
/**
* @brief This function is called to set scan parameters
*
* @param[in] scan_params: Pointer to User defined scan_params data structure. This
* memory space can not be freed until callback of set_scan_params
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_set_scan_params(esp_ble_scan_params_t *scan_params);
/**
* @brief This procedure keep the device scanning the peer device which advertising on the air
*
* @param[in] duration: Keeping the scanning time, the unit is second.
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_start_scanning(uint32_t duration);
/**
* @brief This function call to stop the device scanning the peer device which advertising on the air
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_stop_scanning(void);
/**
* @brief This function is called to start advertising.
*
* @param[in] adv_params: pointer to User defined adv_params data structure.
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_start_advertising (esp_ble_adv_params_t *adv_params);
/**
* @brief This function is called to stop advertising.
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_stop_advertising(void);
/**
* @brief Update connection parameters, can only be used when connection is up.
*
* @param[in] params - connection update parameters
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_update_conn_params(esp_ble_conn_update_params_t *params);
/**
* @brief This function is to set maximum LE data packet size
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_set_pkt_data_len(esp_bd_addr_t remote_device, uint16_t tx_data_length);
/**
* @brief This function set the random address for the application
*
* @param[in] rand_addr: the random address which should be setting
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_set_rand_addr(esp_bd_addr_t rand_addr);
/**
* @brief Enable/disable privacy on the local device
*
* @param[in] privacy_enable - enable/disable privacy on remote device.
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_config_local_privacy (bool privacy_enable);
/**
* @brief Add or remove device from white list
*
* @param[in] add_remove: the value is true if added the ble device to the white list, and false remove to the white list.
* @param[in] remote_bda: the remote device address add/remove from the white list.
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_update_whitelist(bool add_remove, esp_bd_addr_t remote_bda);
/**
* @brief Get the whitelist size in the controller
*
* @param[out] length: the white list length.
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_get_whitelist_size(uint16_t *length);
/**
* @brief This function is called to set the preferred connection
* parameters when default connection parameter is not desired before connecting.
* This API can only be used in the master role.
*
* @param[in] bd_addr: BD address of the peripheral
* @param[in] min_conn_int: minimum preferred connection interval
* @param[in] max_conn_int: maximum preferred connection interval
* @param[in] slave_latency: preferred slave latency
* @param[in] supervision_tout: preferred supervision timeout
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_set_prefer_conn_params(esp_bd_addr_t bd_addr,
uint16_t min_conn_int, uint16_t max_conn_int,
uint16_t slave_latency, uint16_t supervision_tout);
/**
* @brief Set device name to the local device
*
* @param[in] name - device name.
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_set_device_name(const char *name);
/**
* @brief This function is called to get ADV data for a specific type.
*
* @param[in] adv_data - pointer of ADV data which to be resolved
* @param[in] type - finding ADV data type
* @param[out] length - return the length of ADV data not including type
*
* @return - ESP_OK : success
* - other : failed
*
*/
uint8_t *esp_ble_resolve_adv_data(uint8_t *adv_data, uint8_t type, uint8_t *length);
/**
* @brief This function is called to set raw advertising data. User need to fill
* ADV data by self.
*
* @param[in] raw_data : raw advertising data
* @param[in] raw_data_len : raw advertising data length , less than 31 bytes
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_config_adv_data_raw(uint8_t *raw_data, uint32_t raw_data_len);
/**
* @brief This function is called to set raw scan response data. User need to fill
* scan response data by self.
*
* @param[in] raw_data : raw scan response data
* @param[in] raw_data_len : raw scan response data length , less than 31 bytes
*
* @return
* - ESP_OK : success
* - other : failed
*/
esp_err_t esp_ble_gap_config_scan_rsp_data_raw(uint8_t *raw_data, uint32_t raw_data_len);
/**
* @brief This function is called to read the RSSI of remote device.
* The address of link policy results are returned in the gap callback function with
* ESP_GAP_BLE_READ_RSSI_COMPLETE_EVT event.
*
* @param[in] remote_addr : The remote connection device address.
*
* @return
* - ESP_OK : success
* - other : failed
*/
esp_err_t esp_ble_gap_read_rssi(esp_bd_addr_t remote_addr);
#if (SMP_INCLUDED == TRUE)
/**
* @brief Set a GAP security parameter value. Overrides the default value.
*
* @param[in] param_type : the type of the param which to be set
* @param[in] value : the param value
* @param[in] len : the length of the param value
*
* @return - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_set_security_param(esp_ble_sm_param_t param_type,
void *value, uint8_t len);
/**
* @brief Grant security request access.
*
* @param[in] bd_addr : BD address of the peer
* @param[in] accept : accept the security request or not
*
* @return - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_security_rsp(esp_bd_addr_t bd_addr, bool accept);
/**
* @brief Set a gap parameter value. Use this function to change
* the default GAP parameter values.
*
* @param[in] bd_addr : the address of the peer device need to encryption
* @param[in] sec_act : This is the security action to indicate
* what kind of BLE security level is required for
* the BLE link if the BLE is supported
*
* @return - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_set_encryption(esp_bd_addr_t bd_addr, esp_ble_sec_act_t sec_act);
/**
* @brief Reply the key value to the peer device in the lagecy connection stage.
*
* @param[in] bd_addr : BD address of the peer
* @param[in] accept : passkey entry sucessful or declined.
* @param[in] passkey : passkey value, must be a 6 digit number,
* can be lead by 0.
*
* @return - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_passkey_reply(esp_bd_addr_t bd_addr, bool accept, uint32_t passkey);
/**
* @brief Reply the comfirm value to the peer device in the lagecy connection stage.
*
* @param[in] bd_addr : BD address of the peer device
* @param[in] accept : numbers to compare are the same or different.
*
* @return - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_confirm_reply(esp_bd_addr_t bd_addr, bool accept);
/**
* @brief Removes a device from the security database list of
* peer device. It manages unpairing event while connected.
*
* @param[in] bd_addr : BD address of the peer device
*
* @return - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_remove_bond_device(esp_bd_addr_t bd_addr);
/**
* @brief 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.
* - < 0 : failed
*
*/
int esp_ble_get_bond_device_num(void);
/**
* @brief Get the device from the security database list of peer device.
* It will return the device bonded information immediately.
* @param[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().
*
* @param[out] dev_list: an array(buffer) of `esp_ble_bond_dev_t` type. Use for storing the bonded devices address.
* The dev_list should be allocated by who call this API.
* @return - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_get_bond_device_list(int *dev_num, esp_ble_bond_dev_t *dev_list);
#endif /* #if (SMP_INCLUDED == TRUE) */
/**
* @brief This function is to disconnect the physical connection of the peer device
* gattc maybe have multiple virtual GATT server connections when multiple app_id registed.
* esp_ble_gattc_close (esp_gatt_if_t gattc_if, uint16_t conn_id) only close one virtual GATT server connection.
* if there exist other virtual GATT server connections, it does not disconnect the physical connection.
* esp_ble_gap_disconnect(esp_bd_addr_t remote_device) disconnect the physical connection directly.
*
*
*
* @param[in] remote_device : BD address of the peer device
*
* @return - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gap_disconnect(esp_bd_addr_t remote_device);
#ifdef __cplusplus
}
#endif
#endif /* __ESP_GAP_BLE_API_H__ */
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