/* * 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 */