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/*
* Copyright (C) 2013 The Android Open Source Project
*
* 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 ANDROID_INCLUDE_BT_GATT_SERVER_H
#define ANDROID_INCLUDE_BT_GATT_SERVER_H
#include <stdint.h>
#include <vector>
#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,
const bluetooth::Uuid& 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,
const RawAddress& bda);
/** Callback invoked in response to create_service */
typedef void (*service_added_callback)(
int status, int server_if, std::vector<btgatt_db_element_t> service);
/** 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,
const RawAddress& 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,
const RawAddress& bda, int attr_handle,
int offset, bool need_rsp, bool is_prep,
std::vector<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,
const RawAddress& 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);
/** Callback invoked when the PHY for a given connection changes */
typedef void (*phy_updated_callback)(int conn_id, uint8_t tx_phy,
uint8_t rx_phy, uint8_t status);
/** Callback invoked when the connection parameters for a given connection
* changes */
typedef void (*conn_updated_callback)(int conn_id, uint16_t interval,
uint16_t latency, uint16_t timeout,
uint8_t status);
typedef struct {
register_server_callback register_server_cb;
connection_callback connection_cb;
service_added_callback service_added_cb;
service_stopped_callback service_stopped_cb;
service_deleted_callback service_deleted_cb;
request_read_callback request_read_characteristic_cb;
request_read_callback request_read_descriptor_cb;
request_write_callback request_write_characteristic_cb;
request_write_callback request_write_descriptor_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;
phy_updated_callback phy_updated_cb;
conn_updated_callback conn_updated_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)(const bluetooth::Uuid& 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 RawAddress& bd_addr,
bool is_direct, int transport);
/** Disconnect an established connection or cancel a pending one */
bt_status_t (*disconnect)(int server_if, const RawAddress& bd_addr,
int conn_id);
/** Create a new service */
bt_status_t (*add_service)(int server_if,
std::vector<btgatt_db_element_t> service);
/** 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 confirm,
std::vector<uint8_t> value);
/** Send a response to a read/write operation */
bt_status_t (*send_response)(int conn_id, int trans_id, int status,
const btgatt_response_t& response);
bt_status_t (*set_preferred_phy)(const RawAddress& bd_addr, uint8_t tx_phy,
uint8_t rx_phy, uint16_t phy_options);
bt_status_t (*read_phy)(
const RawAddress& bd_addr,
base::Callback<void(uint8_t tx_phy, uint8_t rx_phy, uint8_t status)> cb);
} btgatt_server_interface_t;
__END_DECLS
#endif /* ANDROID_INCLUDE_BT_GATT_CLIENT_H */
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