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/* SPDX-License-Identifier: Apache-2.0 */
/*
* Copyright (C) 2013 The Android Open Source Project
*
*/
#ifndef ANDROID_INCLUDE_BT_GATT_SERVER_H
#define ANDROID_INCLUDE_BT_GATT_SERVER_H
#include <stdint.h>
#include "bt_gatt_types.h"
__BEGIN_DECLS
/** GATT value type used in response to remote read requests */
typedef struct
{
uint8_t value[BTGATT_MAX_ATTR_LEN];
uint16_t handle;
uint16_t offset;
uint16_t len;
uint8_t auth_req;
} btgatt_value_t;
/** GATT remote read request response type */
typedef union
{
btgatt_value_t attr_value;
uint16_t handle;
} btgatt_response_t;
/** BT-GATT Server callback structure. */
/** Callback invoked in response to register_server */
typedef void (*register_server_callback)(int status, int server_if,
bt_uuid_t *app_uuid);
/** Callback indicating that a remote device has connected or been disconnected */
typedef void (*connection_callback)(int conn_id, int server_if, int connected,
bt_bdaddr_t *bda);
/** Callback invoked in response to create_service */
typedef void (*service_added_callback)(int status, int server_if,
btgatt_srvc_id_t *srvc_id, int srvc_handle);
/** Callback indicating that an included service has been added to a service */
typedef void (*included_service_added_callback)(int status, int server_if,
int srvc_handle, int incl_srvc_handle);
/** Callback invoked when a characteristic has been added to a service */
typedef void (*characteristic_added_callback)(int status, int server_if,
bt_uuid_t *uuid, int srvc_handle, int char_handle);
/** Callback invoked when a descriptor has been added to a characteristic */
typedef void (*descriptor_added_callback)(int status, int server_if,
bt_uuid_t *uuid, int srvc_handle, int descr_handle);
/** Callback invoked in response to start_service */
typedef void (*service_started_callback)(int status, int server_if,
int srvc_handle);
/** Callback invoked in response to stop_service */
typedef void (*service_stopped_callback)(int status, int server_if,
int srvc_handle);
/** Callback triggered when a service has been deleted */
typedef void (*service_deleted_callback)(int status, int server_if,
int srvc_handle);
/**
* Callback invoked when a remote device has requested to read a characteristic
* or descriptor. The application must respond by calling send_response
*/
typedef void (*request_read_callback)(int conn_id, int trans_id, bt_bdaddr_t *bda,
int attr_handle, int offset, bool is_long);
/**
* Callback invoked when a remote device has requested to write to a
* characteristic or descriptor.
*/
typedef void (*request_write_callback)(int conn_id, int trans_id, bt_bdaddr_t *bda,
int attr_handle, int offset, int length,
bool need_rsp, bool is_prep, uint8_t* value);
/** Callback invoked when a previously prepared write is to be executed */
typedef void (*request_exec_write_callback)(int conn_id, int trans_id,
bt_bdaddr_t *bda, int exec_write);
/**
* Callback triggered in response to send_response if the remote device
* sends a confirmation.
*/
typedef void (*response_confirmation_callback)(int status, int handle);
/**
* Callback confirming that a notification or indication has been sent
* to a remote device.
*/
typedef void (*indication_sent_callback)(int conn_id, int status);
/**
* Callback notifying an application that a remote device connection is currently congested
* and cannot receive any more data. An application should avoid sending more data until
* a further callback is received indicating the congestion status has been cleared.
*/
typedef void (*congestion_callback)(int conn_id, bool congested);
/** Callback invoked when the MTU for a given connection changes */
typedef void (*mtu_changed_callback)(int conn_id, int mtu);
typedef struct {
register_server_callback register_server_cb;
connection_callback connection_cb;
service_added_callback service_added_cb;
included_service_added_callback included_service_added_cb;
characteristic_added_callback characteristic_added_cb;
descriptor_added_callback descriptor_added_cb;
service_started_callback service_started_cb;
service_stopped_callback service_stopped_cb;
service_deleted_callback service_deleted_cb;
request_read_callback request_read_cb;
request_write_callback request_write_cb;
request_exec_write_callback request_exec_write_cb;
response_confirmation_callback response_confirmation_cb;
indication_sent_callback indication_sent_cb;
congestion_callback congestion_cb;
mtu_changed_callback mtu_changed_cb;
} btgatt_server_callbacks_t;
/** Represents the standard BT-GATT server interface. */
typedef struct {
/** Registers a GATT server application with the stack */
bt_status_t (*register_server)( bt_uuid_t *uuid );
/** Unregister a server application from the stack */
bt_status_t (*unregister_server)(int server_if );
/** Create a connection to a remote peripheral */
bt_status_t (*connect)(int server_if, const bt_bdaddr_t *bd_addr,
bool is_direct, int transport);
/** Disconnect an established connection or cancel a pending one */
bt_status_t (*disconnect)(int server_if, const bt_bdaddr_t *bd_addr,
int conn_id );
/** Create a new service */
bt_status_t (*add_service)( int server_if, btgatt_srvc_id_t *srvc_id, int num_handles);
/** Assign an included service to it's parent service */
bt_status_t (*add_included_service)( int server_if, int service_handle, int included_handle);
/** Add a characteristic to a service */
bt_status_t (*add_characteristic)( int server_if,
int service_handle, bt_uuid_t *uuid,
int properties, int permissions);
/** Add a descriptor to a given service */
bt_status_t (*add_descriptor)(int server_if, int service_handle,
bt_uuid_t *uuid, int permissions);
/** Starts a local service */
bt_status_t (*start_service)(int server_if, int service_handle,
int transport);
/** Stops a local service */
bt_status_t (*stop_service)(int server_if, int service_handle);
/** Delete a local service */
bt_status_t (*delete_service)(int server_if, int service_handle);
/** Send value indication to a remote device */
bt_status_t (*send_indication)(int server_if, int attribute_handle,
int conn_id, int len, int confirm,
char* p_value);
/** Send a response to a read/write operation */
bt_status_t (*send_response)(int conn_id, int trans_id,
int status, btgatt_response_t *response);
} btgatt_server_interface_t;
__END_DECLS
#endif /* ANDROID_INCLUDE_BT_GATT_CLIENT_H */
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