513 lines
22 KiB
C
513 lines
22 KiB
C
// Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef __ESP_GAP_BLE_API_H__
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#define __ESP_GAP_BLE_API_H__
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#include <stdint.h>
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#include <stdbool.h>
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#include "esp_err.h"
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#include "esp_bt_defs.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**@{
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* BLE_ADV_DATA_FLAG data flag bit definition used for advertising data flag
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*/
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#define ESP_BLE_ADV_FLAG_LIMIT_DISC (0x01 << 0)
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#define ESP_BLE_ADV_FLAG_GEN_DISC (0x01 << 1)
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#define ESP_BLE_ADV_FLAG_BREDR_NOT_SPT (0x01 << 2)
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#define ESP_BLE_ADV_FLAG_DMT_CONTROLLER_SPT (0x01 << 3)
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#define ESP_BLE_ADV_FLAG_DMT_HOST_SPT (0x01 << 4)
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#define ESP_BLE_ADV_FLAG_NON_LIMIT_DISC (0x00 )
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/**
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* @}
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*/
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/// GAP BLE callback event type
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typedef enum {
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ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT = 0, /*!< When advertising data set complete, the event comes */
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ESP_GAP_BLE_SCAN_RSP_DATA_SET_COMPLETE_EVT, /*!< When scan response data set complete, the event comes */
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ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT, /*!< When scan parameters set complete, the event comes */
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ESP_GAP_BLE_SCAN_RESULT_EVT, /*!< When one scan result ready, the event comes each time */
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ESP_GAP_BLE_ADV_DATA_RAW_SET_COMPLETE_EVT, /*!< When raw advertising data set complete, the event comes */
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ESP_GAP_BLE_SCAN_RSP_DATA_RAW_SET_COMPLETE_EVT, /*!< When raw advertising data set complete, the event comes */
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ESP_GAP_BLE_ADV_START_COMPLETE_EVT, /*!< When start advertising complete, the event comes */
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ESP_GAP_BLE_SCAN_START_COMPLETE_EVT, /*!< When start scan complete, the event comes */
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} esp_gap_ble_cb_event_t;
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/// Advertising data maximum length
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#define ESP_BLE_ADV_DATA_LEN_MAX 31
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/// Scan response data maximum length
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#define ESP_BLE_SCAN_RSP_DATA_LEN_MAX 31
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/// The type of advertising data(not adv_type)
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typedef enum {
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ESP_BLE_AD_TYPE_FLAG = 0x01,
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ESP_BLE_AD_TYPE_16SRV_PART = 0x02,
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ESP_BLE_AD_TYPE_16SRV_CMPL = 0x03,
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ESP_BLE_AD_TYPE_32SRV_PART = 0x04,
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ESP_BLE_AD_TYPE_32SRV_CMPL = 0x05,
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ESP_BLE_AD_TYPE_128SRV_PART = 0x06,
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ESP_BLE_AD_TYPE_128SRV_CMPL = 0x07,
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ESP_BLE_AD_TYPE_NAME_SHORT = 0x08,
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ESP_BLE_AD_TYPE_NAME_CMPL = 0x09,
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ESP_BLE_AD_TYPE_TX_PWR = 0x0A,
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ESP_BLE_AD_TYPE_DEV_CLASS = 0x0D,
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ESP_BLE_AD_TYPE_SM_TK = 0x10,
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ESP_BLE_AD_TYPE_SM_OOB_FLAG = 0x11,
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ESP_BLE_AD_TYPE_INT_RANGE = 0x12,
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ESP_BLE_AD_TYPE_SOL_SRV_UUID = 0x14,
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ESP_BLE_AD_TYPE_128SOL_SRV_UUID = 0x15,
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ESP_BLE_AD_TYPE_SERVICE_DATA = 0x16,
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ESP_BLE_AD_TYPE_PUBLIC_TARGET = 0x17,
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ESP_BLE_AD_TYPE_RANDOM_TARGET = 0x18,
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ESP_BLE_AD_TYPE_APPEARANCE = 0x19,
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ESP_BLE_AD_TYPE_ADV_INT = 0x1A,
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ESP_BLE_AD_TYPE_32SOL_SRV_UUID = 0x1B,
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ESP_BLE_AD_TYPE_32SERVICE_DATA = 0x1C,
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ESP_BLE_AD_TYPE_128SERVICE_DATA = 0x1D,
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ESP_BLE_AD_MANUFACTURER_SPECIFIC_TYPE = 0xFF,
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} esp_ble_adv_data_type;
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/// Advertising mode
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typedef enum {
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ADV_TYPE_IND = 0x00,
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ADV_TYPE_DIRECT_IND_HIGH = 0x01,
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ADV_TYPE_SCAN_IND = 0x02,
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ADV_TYPE_NONCONN_IND = 0x03,
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ADV_TYPE_DIRECT_IND_LOW = 0x04,
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} esp_ble_adv_type_t;
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/// Advertising channel mask
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typedef enum {
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ADV_CHNL_37 = 0x01,
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ADV_CHNL_38 = 0x02,
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ADV_CHNL_39 = 0x04,
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ADV_CHNL_ALL = 0x07,
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} esp_ble_adv_channel_t;
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typedef enum {
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///Allow both scan and connection requests from anyone
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ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY = 0x00,
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///Allow both scan req from White List devices only and connection req from anyone
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ADV_FILTER_ALLOW_SCAN_WLST_CON_ANY,
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///Allow both scan req from anyone and connection req from White List devices only
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ADV_FILTER_ALLOW_SCAN_ANY_CON_WLST,
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///Allow scan and connection requests from White List devices only
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ADV_FILTER_ALLOW_SCAN_WLST_CON_WLST,
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///Enumeration end value for advertising filter policy value check
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} esp_ble_adv_filter_t;
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/// Advertising parameters
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typedef struct {
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uint16_t adv_int_min; /*!< Minimum advertising interval for
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undirected and low duty cycle directed advertising.
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Range: 0x0020 to 0x4000 Default: N = 0x0800 (1.28 second)
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Time = N * 0.625 msec Time Range: 20 ms to 10.24 sec */
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uint16_t adv_int_max; /*!< Maximum advertising interval for
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undirected and low duty cycle directed advertising.
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Range: 0x0020 to 0x4000 Default: N = 0x0800 (1.28 second)
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Time = N * 0.625 msec Time Range: 20 ms to 10.24 sec Advertising max interval */
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esp_ble_adv_type_t adv_type; /*!< Advertising type */
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esp_ble_addr_type_t own_addr_type; /*!< Owner bluetooth device address type */
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esp_bd_addr_t peer_addr; /*!< Peer device bluetooth device address */
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esp_ble_addr_type_t peer_addr_type; /*!< Peer device bluetooth device address type */
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esp_ble_adv_channel_t channel_map; /*!< Advertising channel map */
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esp_ble_adv_filter_t adv_filter_policy; /*!< Advertising filter policy */
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} esp_ble_adv_params_t;
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/// Advertising data content, according to "Supplement to the Bluetooth Core Specification"
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typedef struct {
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bool set_scan_rsp; /*!< Set this advertising data as scan response or not*/
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bool include_name; /*!< Advertising data include device name or not */
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bool include_txpower; /*!< Advertising data include TX power */
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int min_interval; /*!< Advertising data show advertising min interval */
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int max_interval; /*!< Advertising data show advertising max interval */
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int appearance; /*!< External appearance of device */
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uint16_t manufacturer_len; /*!< Manufacturer data length */
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uint8_t *p_manufacturer_data; /*!< Manufacturer data point */
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uint16_t service_data_len; /*!< Service data length */
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uint8_t *p_service_data; /*!< Service data point */
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uint16_t service_uuid_len; /*!< Service uuid length */
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uint8_t *p_service_uuid; /*!< Service uuid array point */
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uint8_t flag; /*!< Advertising flag of discovery mode, see BLE_ADV_DATA_FLAG detail */
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} esp_ble_adv_data_t;
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/// Own BD address source of the device
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typedef enum {
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/// Public Address
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ESP_PUBLIC_ADDR,
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/// Provided random address
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ESP_PROVIDED_RND_ADDR,
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/// Provided static random address
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ESP_GEN_STATIC_RND_ADDR,
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/// Generated resolvable private random address
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ESP_GEN_RSLV_ADDR,
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/// Generated non-resolvable private random address
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ESP_GEN_NON_RSLV_ADDR,
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/// Provided Reconnection address
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ESP_PROVIDED_RECON_ADDR,
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} esp_ble_own_addr_src_t;
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/// Ble scan type
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typedef enum {
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BLE_SCAN_TYPE_PASSIVE = 0x0, /*!< Passive scan */
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BLE_SCAN_TYPE_ACTIVE = 0x1, /*!< Active scan */
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} esp_ble_scan_type_t;
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/// Ble scan filter type
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typedef enum {
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BLE_SCAN_FILTER_ALLOW_ALL = 0x0, /*!< Accept all :
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1. advertisement packets except directed advertising packets not addressed to this device (default). */
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BLE_SCAN_FILTER_ALLOW_ONLY_WLST = 0x1, /*!< Accept only :
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1. advertisement packets from devices where the advertiser’s address is in the White list.
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2. Directed advertising packets which are not addressed for this device shall be ignored. */
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BLE_SCAN_FILTER_ALLOW_UND_RPA_DIR = 0x2, /*!< Accept all :
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1. undirected advertisement packets, and
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2. directed advertising packets where the initiator address is a resolvable private address, and
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3. directed advertising packets addressed to this device. */
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BLE_SCAN_FILTER_ALLOW_WLIST_PRA_DIR = 0x3, /*!< Accept all :
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1. advertisement packets from devices where the advertiser’s address is in the White list, and
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2. directed advertising packets where the initiator address is a resolvable private address, and
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3. directed advertising packets addressed to this device.*/
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} esp_ble_scan_filter_t;
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/// Ble scan parameters
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typedef struct {
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esp_ble_scan_type_t scan_type; /*!< Scan type */
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esp_ble_addr_type_t own_addr_type; /*!< Owner address type */
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esp_ble_scan_filter_t scan_filter_policy; /*!< Scan filter policy */
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uint16_t scan_interval; /*!< Scan interval. This is defined as the time interval from
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when the Controller started its last LE scan until it begins the subsequent LE scan.
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Range: 0x0004 to 0x4000 Default: 0x0010 (10 ms)
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Time = N * 0.625 msec
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Time Range: 2.5 msec to 10.24 seconds*/
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uint16_t scan_window; /*!< Scan window. The duration of the LE scan. LE_Scan_Window
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shall be less than or equal to LE_Scan_Interval
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Range: 0x0004 to 0x4000 Default: 0x0010 (10 ms)
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Time = N * 0.625 msec
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Time Range: 2.5 msec to 10240 msec */
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} esp_ble_scan_params_t;
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/// Connection update parameters
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typedef struct {
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esp_bd_addr_t bda; /*!< Bluetooth device address */
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uint16_t min_int; /*!< Min connection interval */
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uint16_t max_int; /*!< Max connection interval */
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uint16_t latency; /*!< Slave latency for the connection in number of connection events. Range: 0x0000 to 0x01F3 */
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uint16_t timeout; /*!< Supervision timeout for the LE Link. Range: 0x000A to 0x0C80.
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Mandatory Range: 0x000A to 0x0C80 Time = N * 10 msec
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Time Range: 100 msec to 32 seconds */
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} esp_ble_conn_update_params_t;
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/// Sub Event of ESP_GAP_BLE_SCAN_RESULT_EVT
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typedef enum {
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ESP_GAP_SEARCH_INQ_RES_EVT = 0, /*!< Inquiry result for a peer device. */
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ESP_GAP_SEARCH_INQ_CMPL_EVT = 1, /*!< Inquiry complete. */
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ESP_GAP_SEARCH_DISC_RES_EVT = 2, /*!< Discovery result for a peer device. */
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ESP_GAP_SEARCH_DISC_BLE_RES_EVT = 3, /*!< Discovery result for BLE GATT based service on a peer device. */
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ESP_GAP_SEARCH_DISC_CMPL_EVT = 4, /*!< Discovery complete. */
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ESP_GAP_SEARCH_DI_DISC_CMPL_EVT = 5, /*!< Discovery complete. */
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ESP_GAP_SEARCH_SEARCH_CANCEL_CMPL_EVT = 6, /*!< Search cancelled */
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} esp_gap_search_evt_t;
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/**
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* @brief Ble scan result event type, to indicate the
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* result is scan response or advertising data or other
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*/
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typedef enum {
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ESP_BLE_EVT_CONN_ADV = 0x00, /*!< Connectable undirected advertising (ADV_IND) */
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ESP_BLE_EVT_CONN_DIR_ADV = 0x01, /*!< Connectable directed advertising (ADV_DIRECT_IND) */
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ESP_BLE_EVT_DISC_ADV = 0x02, /*!< Scannable undirected advertising (ADV_SCAN_IND) */
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ESP_BLE_EVT_NON_CONN_ADV = 0x03, /*!< Non connectable undirected advertising (ADV_NONCONN_IND) */
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ESP_BLE_EVT_SCAN_RSP = 0x04, /*!< Scan Response (SCAN_RSP) */
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} esp_ble_evt_type_t;
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/**
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* @brief Gap callback parameters union
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*/
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typedef union {
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/**
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* @brief ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT
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*/
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struct ble_adv_data_cmpl_evt_param {
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esp_bt_status_t status; /*!< Indicate the set advertising data operation success status */
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} adv_data_cmpl; /*!< Event parameter of ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT */
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/**
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* @brief ESP_GAP_BLE_SCAN_RSP_DATA_SET_COMPLETE_EVT
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*/
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struct ble_scan_rsp_data_cmpl_evt_param {
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esp_bt_status_t status; /*!< Indicate the set scan response data operation success status */
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} scan_rsp_data_cmpl; /*!< Event parameter of ESP_GAP_BLE_SCAN_RSP_DATA_SET_COMPLETE_EVT */
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/**
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* @brief ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT
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*/
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struct ble_scan_param_cmpl_evt_param {
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esp_bt_status_t status; /*!< Indicate the set scan param operation success status */
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} scan_param_cmpl; /*!< Event parameter of ESP_GAP_BLE_SCAN_PARAM_SET_COMPLETE_EVT */
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/**
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* @brief ESP_GAP_BLE_SCAN_RESULT_EVT
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*/
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struct ble_scan_result_evt_param {
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esp_gap_search_evt_t search_evt; /*!< Search event type */
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esp_bd_addr_t bda; /*!< Bluetooth device address which has been searched */
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esp_bt_dev_type_t dev_type; /*!< Device type */
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esp_ble_addr_type_t ble_addr_type; /*!< Ble device address type */
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esp_ble_evt_type_t ble_evt_type; /*!< Ble scan result event type */
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int rssi; /*!< Searched device's RSSI */
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uint8_t ble_adv[ESP_BLE_ADV_DATA_LEN_MAX + ESP_BLE_SCAN_RSP_DATA_LEN_MAX]; /*!< Received EIR */
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int flag; /*!< Advertising data flag bit */
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int num_resps; /*!< Scan result number */
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uint8_t adv_data_len; /*!< Adv data length */
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uint8_t scan_rsp_len; /*!< Scan response length */
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} scan_rst; /*!< Event parameter of ESP_GAP_BLE_SCAN_RESULT_EVT */
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/**
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* @brief ESP_GAP_BLE_ADV_DATA_RAW_SET_COMPLETE_EVT
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*/
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struct ble_adv_data_raw_cmpl_evt_param {
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esp_bt_status_t status; /*!< Indicate the set raw advertising data operation success status */
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} adv_data_raw_cmpl; /*!< Event parameter of ESP_GAP_BLE_ADV_DATA_RAW_SET_COMPLETE_EVT */
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/**
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* @brief ESP_GAP_BLE_SCAN_RSP_DATA_RAW_SET_COMPLETE_EVT
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*/
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struct ble_scan_rsp_data_raw_cmpl_evt_param {
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esp_bt_status_t status; /*!< Indicate the set raw advertising data operation success status */
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} scan_rsp_data_raw_cmpl; /*!< Event parameter of ESP_GAP_BLE_SCAN_RSP_DATA_RAW_SET_COMPLETE_EVT */
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/**
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* @brief ESP_GAP_BLE_ADV_START_COMPLETE_EVT
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*/
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struct ble_adv_start_cmpl_evt_param {
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esp_bt_status_t status; /*!< Indicate advertising start operation success status */
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} adv_start_cmpl; /*!< Event parameter of ESP_GAP_BLE_ADV_START_COMPLETE_EVT */
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/**
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* @brief ESP_GAP_BLE_SCAN_START_COMPLETE_EVT
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*/
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struct ble_scan_start_cmpl_evt_param {
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esp_bt_status_t status; /*!< Indicate scan start operation success status */
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} scan_start_cmpl; /*!< Event parameter of ESP_GAP_BLE_SCAN_START_COMPLETE_EVT */
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} esp_ble_gap_cb_param_t;
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/**
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* @brief GAP callback function type
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* @param event : Event type
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* @param param : Point to callback parameter, currently is union type
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*/
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typedef void (* esp_gap_ble_cb_t)(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param);
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/**
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* @brief This function is called to occur gap event, such as scan result
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*
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* @param[in] callback: callback function
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*
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* @return
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* - ESP_OK : success
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* - other : failed
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*
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*/
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esp_err_t esp_ble_gap_register_callback(esp_gap_ble_cb_t callback);
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/**
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* @brief This function is called to override the BTA default ADV parameters.
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*
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* @param[in] adv_data: Pointer to User defined ADV data structure. This
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* memory space can not be freed until callback of config_adv_data
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* is received.
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*
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* @return
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* - ESP_OK : success
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* - other : failed
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*
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*/
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esp_err_t esp_ble_gap_config_adv_data (esp_ble_adv_data_t *adv_data);
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/**
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* @brief This function is called to set scan parameters
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*
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* @param[in] scan_params: Pointer to User defined scan_params data structure. This
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* memory space can not be freed until callback of set_scan_params
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*
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* @return
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* - ESP_OK : success
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* - other : failed
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*
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*/
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esp_err_t esp_ble_gap_set_scan_params(esp_ble_scan_params_t *scan_params);
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/**
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* @brief This procedure keep the device scanning the peer device which advertising on the air
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*
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* @param[in] duration: Keeping the scanning time, the unit is second.
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*
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* @return
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* - ESP_OK : success
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* - other : failed
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*
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*/
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esp_err_t esp_ble_gap_start_scanning(uint32_t duration);
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/**
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* @brief This function call to stop the device scanning the peer device which advertising on the air
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* @return
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* - ESP_OK : success
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* - other : failed
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*
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*/
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esp_err_t esp_ble_gap_stop_scanning(void);
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/**
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* @brief This function is called to start advertising.
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*
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* @param[in] adv_params: pointer to User defined adv_params data structure.
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* @return
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* - ESP_OK : success
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* - other : failed
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*
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*/
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esp_err_t esp_ble_gap_start_advertising (esp_ble_adv_params_t *adv_params);
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/**
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* @brief This function is called to stop advertising.
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*
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* @return
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* - ESP_OK : success
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* - other : failed
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*
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*/
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esp_err_t esp_ble_gap_stop_advertising(void);
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/**
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* @brief Update connection parameters, can only be used when connection is up.
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*
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* @param[in] params - connection update parameters
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*
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* @return
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* - ESP_OK : success
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* - other : failed
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*
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*/
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esp_err_t esp_ble_gap_update_conn_params(esp_ble_conn_update_params_t *params);
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/**
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* @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 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);
|
||
|
||
#ifdef __cplusplus
|
||
}
|
||
#endif
|
||
|
||
#endif /* __ESP_GAP_BLE_API_H__ */
|