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OVMS3-idf/components/bt/bluedroid/api/include/esp_gatts_api.h
Tian Hao 4fd437d466 component/bt : support remove bonded device 
1. add feature of remove bonded devices.
2. fix SMP key size bug
3. fix privacy bug
4. fix gatt set value bug
5. add gatt security client demo
6. change gatt server/gatt client demo
2017-09-22 20:19:02 +08:00

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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_GATTS_API_H__
#define __ESP_GATTS_API_H__
#include "esp_bt_defs.h"
#include "esp_gatt_defs.h"
#include "esp_err.h"
#ifdef __cplusplus
extern "C" {
#endif
/// GATT Server callback function events
typedef enum {
ESP_GATTS_REG_EVT = 0, /*!< When register application id, the event comes */
ESP_GATTS_READ_EVT = 1, /*!< When gatt client request read operation, the event comes */
ESP_GATTS_WRITE_EVT = 2, /*!< When gatt client request write operation, the event comes */
ESP_GATTS_EXEC_WRITE_EVT = 3, /*!< When gatt client request execute write, the event comes */
ESP_GATTS_MTU_EVT = 4, /*!< When set mtu complete, the event comes */
ESP_GATTS_CONF_EVT = 5, /*!< When receive confirm, the event comes */
ESP_GATTS_UNREG_EVT = 6, /*!< When unregister application id, the event comes */
ESP_GATTS_CREATE_EVT = 7, /*!< When create service complete, the event comes */
ESP_GATTS_ADD_INCL_SRVC_EVT = 8, /*!< When add included service complete, the event comes */
ESP_GATTS_ADD_CHAR_EVT = 9, /*!< When add characteristic complete, the event comes */
ESP_GATTS_ADD_CHAR_DESCR_EVT = 10, /*!< When add descriptor complete, the event comes */
ESP_GATTS_DELETE_EVT = 11, /*!< When delete service complete, the event comes */
ESP_GATTS_START_EVT = 12, /*!< When start service complete, the event comes */
ESP_GATTS_STOP_EVT = 13, /*!< When stop service complete, the event comes */
ESP_GATTS_CONNECT_EVT = 14, /*!< When gatt client connect, the event comes */
ESP_GATTS_DISCONNECT_EVT = 15, /*!< When gatt client disconnect, the event comes */
ESP_GATTS_OPEN_EVT = 16, /*!< When connect to peer, the event comes */
ESP_GATTS_CANCEL_OPEN_EVT = 17, /*!< When disconnect from peer, the event comes */
ESP_GATTS_CLOSE_EVT = 18, /*!< When gatt server close, the event comes */
ESP_GATTS_LISTEN_EVT = 19, /*!< When gatt listen to be connected the event comes */
ESP_GATTS_CONGEST_EVT = 20, /*!< When congest happen, the event comes */
/* following is extra event */
ESP_GATTS_RESPONSE_EVT = 21, /*!< When gatt send response complete, the event comes */
ESP_GATTS_CREAT_ATTR_TAB_EVT = 22,
ESP_GATTS_SET_ATTR_VAL_EVT = 23,
} esp_gatts_cb_event_t;
/**
* @brief Gatt server callback parameters union
*/
typedef union {
/**
* @brief ESP_GATTS_REG_EVT
*/
struct gatts_reg_evt_param {
esp_gatt_status_t status; /*!< Operation status */
uint16_t app_id; /*!< Application id which input in register API */
} reg; /*!< Gatt server callback param of ESP_GATTS_REG_EVT */
/**
* @brief ESP_GATTS_READ_EVT
*/
struct gatts_read_evt_param {
uint16_t conn_id; /*!< Connection id */
uint32_t trans_id; /*!< Transfer id */
esp_bd_addr_t bda; /*!< The bluetooth device address which been read */
uint16_t handle; /*!< The attribute handle */
uint16_t offset; /*!< Offset of the value, if the value is too long */
bool is_long; /*!< The value is too long or not */
bool need_rsp; /*!< The read operation need to do response */
} read; /*!< Gatt server callback param of ESP_GATTS_READ_EVT */
/**
* @brief ESP_GATTS_WRITE_EVT
*/
struct gatts_write_evt_param {
uint16_t conn_id; /*!< Connection id */
uint32_t trans_id; /*!< Transfer id */
esp_bd_addr_t bda; /*!< The bluetooth device address which been written */
uint16_t handle; /*!< The attribute handle */
uint16_t offset; /*!< Offset of the value, if the value is too long */
bool need_rsp; /*!< The write operation need to do response */
bool is_prep; /*!< This write operation is prepare write */
uint16_t len; /*!< The write attribute value length */
uint8_t *value; /*!< The write attribute value */
} write; /*!< Gatt server callback param of ESP_GATTS_WRITE_EVT */
/**
* @brief ESP_GATTS_EXEC_WRITE_EVT
*/
struct gatts_exec_write_evt_param {
uint16_t conn_id; /*!< Connection id */
uint32_t trans_id; /*!< Transfer id */
esp_bd_addr_t bda; /*!< The bluetooth device address which been written */
#define ESP_GATT_PREP_WRITE_CANCEL 0x00 /*!< Prepare write flag to indicate cancel prepare write */
#define ESP_GATT_PREP_WRITE_EXEC 0x01 /*!< Prepare write flag to indicate execute prepare write */
uint8_t exec_write_flag; /*!< Execute write flag */
} exec_write; /*!< Gatt server callback param of ESP_GATTS_EXEC_WRITE_EVT */
/**
* @brief ESP_GATTS_MTU_EVT
*/
struct gatts_mtu_evt_param {
uint16_t conn_id; /*!< Connection id */
uint16_t mtu; /*!< MTU size */
} mtu; /*!< Gatt server callback param of ESP_GATTS_MTU_EVT */
/**
* @brief ESP_GATTS_CONF_EVT
*/
struct gatts_conf_evt_param {
esp_gatt_status_t status; /*!< Operation status */
uint16_t conn_id; /*!< Connection id */
} conf; /*!< Gatt server callback param of ESP_GATTS_CONF_EVT (confirm) */
/**
* @brief ESP_GATTS_UNREG_EVT
*/
/**
* @brief ESP_GATTS_CREATE_EVT
*/
struct gatts_create_evt_param {
esp_gatt_status_t status; /*!< Operation status */
uint16_t service_handle; /*!< Service attribute handle */
esp_gatt_srvc_id_t service_id; /*!< Service id, include service uuid and other information */
} create; /*!< Gatt server callback param of ESP_GATTS_CREATE_EVT */
/**
* @brief ESP_GATTS_ADD_INCL_SRVC_EVT
*/
struct gatts_add_incl_srvc_evt_param {
esp_gatt_status_t status; /*!< Operation status */
uint16_t attr_handle; /*!< Included service attribute handle */
uint16_t service_handle; /*!< Service attribute handle */
} add_incl_srvc; /*!< Gatt server callback param of ESP_GATTS_ADD_INCL_SRVC_EVT */
/**
* @brief ESP_GATTS_ADD_CHAR_EVT
*/
struct gatts_add_char_evt_param {
esp_gatt_status_t status; /*!< Operation status */
uint16_t attr_handle; /*!< Characteristic attribute handle */
uint16_t service_handle; /*!< Service attribute handle */
esp_bt_uuid_t char_uuid; /*!< Characteristic uuid */
} add_char; /*!< Gatt server callback param of ESP_GATTS_ADD_CHAR_EVT */
/**
* @brief ESP_GATTS_ADD_CHAR_DESCR_EVT
*/
struct gatts_add_char_descr_evt_param {
esp_gatt_status_t status; /*!< Operation status */
uint16_t attr_handle; /*!< Descriptor attribute handle */
uint16_t service_handle; /*!< Service attribute handle */
esp_bt_uuid_t char_uuid; /*!< Characteristic uuid */
} add_char_descr; /*!< Gatt server callback param of ESP_GATTS_ADD_CHAR_DESCR_EVT */
/**
* @brief ESP_GATTS_DELETE_EVT
*/
struct gatts_delete_evt_param {
esp_gatt_status_t status; /*!< Operation status */
uint16_t service_handle; /*!< Service attribute handle */
} del; /*!< Gatt server callback param of ESP_GATTS_DELETE_EVT */
/**
* @brief ESP_GATTS_START_EVT
*/
struct gatts_start_evt_param {
esp_gatt_status_t status; /*!< Operation status */
uint16_t service_handle; /*!< Service attribute handle */
} start; /*!< Gatt server callback param of ESP_GATTS_START_EVT */
/**
* @brief ESP_GATTS_STOP_EVT
*/
struct gatts_stop_evt_param {
esp_gatt_status_t status; /*!< Operation status */
uint16_t service_handle; /*!< Service attribute handle */
} stop; /*!< Gatt server callback param of ESP_GATTS_STOP_EVT */
/**
* @brief ESP_GATTS_CONNECT_EVT
*/
struct gatts_connect_evt_param {
uint16_t conn_id; /*!< Connection id */
esp_bd_addr_t remote_bda; /*!< Remote bluetooth device address */
bool is_connected; /*!< Indicate it is connected or not */
} connect; /*!< Gatt server callback param of ESP_GATTS_CONNECT_EVT */
/**
* @brief ESP_GATTS_DISCONNECT_EVT
*/
struct gatts_disconnect_evt_param {
uint16_t conn_id; /*!< Connection id */
esp_bd_addr_t remote_bda; /*!< Remote bluetooth device address */
bool is_connected; /*!< Indicate it is connected or not */
} disconnect; /*!< Gatt server callback param of ESP_GATTS_DISCONNECT_EVT */
/**
* @brief ESP_GATTS_OPEN_EVT
*/
struct gatts_open_evt_param {
esp_gatt_status_t status; /*!< Operation status */
} open; /*!< Gatt server callback param of ESP_GATTS_OPEN_EVT */
/**
* @brief ESP_GATTS_CANCEL_OPEN_EVT
*/
struct gatts_cancel_open_evt_param {
esp_gatt_status_t status; /*!< Operation status */
} cancel_open; /*!< Gatt server callback param of ESP_GATTS_CANCEL_OPEN_EVT */
/**
* @brief ESP_GATTS_CLOSE_EVT
*/
struct gatts_close_evt_param {
esp_gatt_status_t status; /*!< Operation status */
uint16_t conn_id; /*!< Connection id */
} close; /*!< Gatt server callback param of ESP_GATTS_CLOSE_EVT */
/**
* @brief ESP_GATTS_LISTEN_EVT
*/
/**
* @brief ESP_GATTS_CONGEST_EVT
*/
struct gatts_congest_evt_param {
uint16_t conn_id; /*!< Connection id */
bool congested; /*!< Congested or not */
} congest; /*!< Gatt server callback param of ESP_GATTS_CONGEST_EVT */
/**
* @brief ESP_GATTS_RESPONSE_EVT
*/
struct gatts_rsp_evt_param {
esp_gatt_status_t status; /*!< Operation status */
uint16_t handle; /*!< Attribute handle which send response */
} rsp; /*!< Gatt server callback param of ESP_GATTS_RESPONSE_EVT */
/**
* @brief ESP_GATTS_CREAT_ATTR_TAB_EVT
*/
struct gatts_add_attr_tab_evt_param{
esp_gatt_status_t status; /*!< Operation status */
esp_bt_uuid_t svc_uuid; /*!< Service uuid type */
uint16_t num_handle; /*!< The number of the attribute handle to be added to the gatts database */
uint16_t *handles; /*!< The number to the handles */
} add_attr_tab; /*!< Gatt server callback param of ESP_GATTS_CREAT_ATTR_TAB_EVT */
/**
* @brief ESP_GATTS_SET_ATTR_VAL_EVT
*/
struct gatts_set_attr_val_evt_param{
uint16_t srvc_handle; /*!< The service handle */
uint16_t attr_handle; /*!< The attribute handle */
esp_gatt_status_t status; /*!< Operation status*/
} set_attr_val; /*!< Gatt server callback param of ESP_GATTS_SET_ATTR_VAL_EVT */
} esp_ble_gatts_cb_param_t;
/**
* @brief GATT Server callback function type
* @param event : Event type
* @param gatts_if : GATT server access interface, normally
* different gatts_if correspond to different profile
* @param param : Point to callback parameter, currently is union type
*/
typedef void (* esp_gatts_cb_t)(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param);
/**
* @brief This function is called to register application callbacks
* with BTA GATTS module.
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_register_callback(esp_gatts_cb_t callback);
/**
* @brief This function is called to register application identifier
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_app_register(uint16_t app_id);
/**
* @brief unregister with GATT Server.
*
* @param[in] gatts_if: GATT server access interface
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_app_unregister(esp_gatt_if_t gatts_if);
/**
* @brief Create a service. When service creation is done, a callback
* event BTA_GATTS_CREATE_SRVC_EVT is called to report status
* and service ID to the profile. The service ID obtained in
* the callback function needs to be used when adding included
* service and characteristics/descriptors into the service.
*
* @param[in] gatts_if: GATT server access interface
* @param[in] service_id: service ID.
* @param[in] num_handle: number of handle requested for this service.
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_create_service(esp_gatt_if_t gatts_if,
esp_gatt_srvc_id_t *service_id, uint16_t num_handle);
/**
* @brief Create a service attribute tab.
* @param[in] gatts_attr_db: the pointer to the service attr tab
* @param[in] gatts_if: GATT server access interface
* @param[in] max_nb_attr: the number of attribute to be added to the service database.
* @param[in] srvc_inst_id: the instance id of the service
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_create_attr_tab(const esp_gatts_attr_db_t *gatts_attr_db,
esp_gatt_if_t gatts_if,
uint8_t max_nb_attr,
uint8_t srvc_inst_id);
/**
* @brief This function is called to add an included service. After included
* service is included, a callback event BTA_GATTS_ADD_INCL_SRVC_EVT
* is reported the included service ID.
*
* @param[in] service_handle: service handle to which this included service is to
* be added.
* @param[in] included_service_handle: the service ID to be included.
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_add_included_service(uint16_t service_handle, uint16_t included_service_handle);
/**
* @brief This function is called to add a characteristic into a service.
*
* @param[in] service_handle: service handle to which this included service is to
* be added.
* @param[in] char_uuid : Characteristic UUID.
* @param[in] perm : Characteristic value declaration attribute permission.
* @param[in] property : Characteristic Properties
* @param[in] char_val : Characteristic value
* @param[in] control : attribute response control byte
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_add_char(uint16_t service_handle, esp_bt_uuid_t *char_uuid,
esp_gatt_perm_t perm, esp_gatt_char_prop_t property, esp_attr_value_t *char_val,
esp_attr_control_t *control);
/**
* @brief This function is called to add characteristic descriptor. When
* it's done, a callback event BTA_GATTS_ADD_DESCR_EVT is called
* to report the status and an ID number for this descriptor.
*
* @param[in] service_handle: service handle to which this characteristic descriptor is to
* be added.
* @param[in] perm: descriptor access permission.
* @param[in] descr_uuid: descriptor UUID.
* @param[in] char_descr_val : Characteristic descriptor value
* @param[in] control : attribute response control byte
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_add_char_descr (uint16_t service_handle,
esp_bt_uuid_t *descr_uuid,
esp_gatt_perm_t perm, esp_attr_value_t *char_descr_val,
esp_attr_control_t *control);
/**
* @brief This function is called to delete a service. When this is done,
* a callback event BTA_GATTS_DELETE_EVT is report with the status.
*
* @param[in] service_handle: service_handle to be deleted.
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_delete_service(uint16_t service_handle);
/**
* @brief This function is called to start a service.
*
* @param[in] service_handle: the service handle to be started.
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_start_service(uint16_t service_handle);
/**
* @brief This function is called to stop a service.
*
* @param[in] service_handle - service to be topped.
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_stop_service(uint16_t service_handle);
/**
* @brief Send indicate or notify to GATT client.
* Set param need_confirm as false will send notification, otherwise indication.
*
* @param[in] gatts_if: GATT server access interface
* @param[in] conn_id - connection id to indicate.
* @param[in] attr_handle - attribute handle to indicate.
* @param[in] value_len - indicate value length.
* @param[in] value: value to indicate.
* @param[in] need_confirm - Whether a confirmation is required.
* false sends a GATT notification, true sends a GATT indication.
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_send_indicate(esp_gatt_if_t gatts_if, uint16_t conn_id, uint16_t attr_handle,
uint16_t value_len, uint8_t *value, bool need_confirm);
/**
* @brief This function is called to send a response to a request.
*
* @param[in] gatts_if: GATT server access interface
* @param[in] conn_id - connection identifier.
* @param[in] trans_id - transfer id
* @param[in] status - response status
* @param[in] rsp - response data.
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_send_response(esp_gatt_if_t gatts_if, uint16_t conn_id, uint32_t trans_id,
esp_gatt_status_t status, esp_gatt_rsp_t *rsp);
/**
* @brief This function is called to set the attribute value by the application
*
* @param[in] attr_handle: the attribute handle which to be set
* @param[in] length: the value length
* @param[in] value: the pointer to the attribute value
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_set_attr_value(uint16_t attr_handle, uint16_t length, const uint8_t *value);
/**
* @brief Retrieve attribute value
*
* @param[in] attr_handle: Attribute handle.
* @param[out] length: pointer to the attribute value length
* @param[out] value: Pointer to attribute value payload, the value cannot be modified by user
*
* @return
* - ESP_GATT_OK : success
* - other : failed
*
*/
esp_gatt_status_t esp_ble_gatts_get_attr_value(uint16_t attr_handle, uint16_t *length, const uint8_t **value);
/**
* @brief Open a direct open connection or add a background auto connection
*
* @param[in] gatts_if: GATT server access interface
* @param[in] remote_bda: remote device bluetooth device address.
* @param[in] is_direct: direct connection or background auto connection
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_open(esp_gatt_if_t gatts_if, esp_bd_addr_t remote_bda, bool is_direct);
/**
* @brief Close a connection a remote device.
*
* @param[in] gatts_if: GATT server access interface
* @param[in] conn_id: connection ID to be closed.
*
* @return
* - ESP_OK : success
* - other : failed
*
*/
esp_err_t esp_ble_gatts_close(esp_gatt_if_t gatts_if, uint16_t conn_id);
#ifdef __cplusplus
}
#endif
#endif /* __ESP_GATTS_API_H__ */
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