291 lines
11 KiB
C
291 lines
11 KiB
C
/*
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* Copyright (C) 2013 The Android Open Source Project
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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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*
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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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*/
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#ifndef ANDROID_INCLUDE_BT_GATT_CLIENT_H
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#define ANDROID_INCLUDE_BT_GATT_CLIENT_H
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#include <stdint.h>
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#include "bt_gatt_types.h"
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__BEGIN_DECLS
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/**
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* Buffer sizes for maximum attribute length and maximum read/write
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* operation buffer size.
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*/
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#define BTGATT_MAX_ATTR_LEN 600
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/** Buffer type for unformatted reads/writes */
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typedef struct
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{
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uint8_t value[BTGATT_MAX_ATTR_LEN];
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uint16_t len;
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} btgatt_unformatted_value_t;
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/** Parameters for GATT read operations */
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typedef struct
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{
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btgatt_srvc_id_t srvc_id;
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btgatt_gatt_id_t char_id;
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btgatt_gatt_id_t descr_id;
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btgatt_unformatted_value_t value;
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uint16_t value_type;
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uint8_t status;
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} btgatt_read_params_t;
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/** Parameters for GATT write operations */
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typedef struct
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{
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btgatt_srvc_id_t srvc_id;
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btgatt_gatt_id_t char_id;
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btgatt_gatt_id_t descr_id;
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uint8_t status;
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} btgatt_write_params_t;
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/** Attribute change notification parameters */
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typedef struct
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{
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uint8_t value[BTGATT_MAX_ATTR_LEN];
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bt_bdaddr_t bda;
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btgatt_srvc_id_t srvc_id;
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btgatt_gatt_id_t char_id;
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uint16_t len;
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uint8_t is_notify;
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} btgatt_notify_params_t;
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typedef struct
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{
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bt_bdaddr_t *bda1;
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bt_uuid_t *uuid1;
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uint16_t u1;
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uint16_t u2;
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uint16_t u3;
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uint16_t u4;
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uint16_t u5;
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} btgatt_test_params_t;
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/** BT-GATT Client callback structure. */
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/** Callback invoked in response to register_client */
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typedef void (*register_client_callback)(int status, int client_if,
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bt_uuid_t *app_uuid);
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/** Callback for scan results */
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typedef void (*scan_result_callback)(bt_bdaddr_t* bda, int rssi, uint8_t* adv_data);
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/** GATT open callback invoked in response to open */
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typedef void (*connect_callback)(int conn_id, int status, int client_if, bt_bdaddr_t* bda);
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/** Callback invoked in response to close */
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typedef void (*disconnect_callback)(int conn_id, int status,
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int client_if, bt_bdaddr_t* bda);
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/**
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* Invoked in response to search_service when the GATT service search
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* has been completed.
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*/
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typedef void (*search_complete_callback)(int conn_id, int status);
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/** Reports GATT services on a remote device */
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typedef void (*search_result_callback)( int conn_id, btgatt_srvc_id_t *srvc_id);
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/** GATT characteristic enumeration result callback */
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typedef void (*get_characteristic_callback)(int conn_id, int status,
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btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
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int char_prop);
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/** GATT descriptor enumeration result callback */
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typedef void (*get_descriptor_callback)(int conn_id, int status,
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btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
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btgatt_gatt_id_t *descr_id);
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/** GATT included service enumeration result callback */
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typedef void (*get_included_service_callback)(int conn_id, int status,
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btgatt_srvc_id_t *srvc_id, btgatt_srvc_id_t *incl_srvc_id);
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/** Callback invoked in response to [de]register_for_notification */
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typedef void (*register_for_notification_callback)(int conn_id,
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int registered, int status, btgatt_srvc_id_t *srvc_id,
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btgatt_gatt_id_t *char_id);
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/**
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* Remote device notification callback, invoked when a remote device sends
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* a notification or indication that a client has registered for.
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*/
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typedef void (*notify_callback)(int conn_id, btgatt_notify_params_t *p_data);
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/** Reports result of a GATT read operation */
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typedef void (*read_characteristic_callback)(int conn_id, int status,
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btgatt_read_params_t *p_data);
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/** GATT write characteristic operation callback */
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typedef void (*write_characteristic_callback)(int conn_id, int status,
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btgatt_write_params_t *p_data);
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/** GATT execute prepared write callback */
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typedef void (*execute_write_callback)(int conn_id, int status);
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/** Callback invoked in response to read_descriptor */
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typedef void (*read_descriptor_callback)(int conn_id, int status,
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btgatt_read_params_t *p_data);
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/** Callback invoked in response to write_descriptor */
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typedef void (*write_descriptor_callback)(int conn_id, int status,
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btgatt_write_params_t *p_data);
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/** Callback triggered in response to read_remote_rssi */
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typedef void (*read_remote_rssi_callback)(int client_if, bt_bdaddr_t* bda,
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int rssi, int status);
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/**
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* Callback indicationg the status of a listen() operation
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*/
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typedef void (*listen_callback)(int status, int server_if);
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typedef struct {
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register_client_callback register_client_cb;
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scan_result_callback scan_result_cb;
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connect_callback open_cb;
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disconnect_callback close_cb;
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search_complete_callback search_complete_cb;
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search_result_callback search_result_cb;
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get_characteristic_callback get_characteristic_cb;
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get_descriptor_callback get_descriptor_cb;
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get_included_service_callback get_included_service_cb;
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register_for_notification_callback register_for_notification_cb;
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notify_callback notify_cb;
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read_characteristic_callback read_characteristic_cb;
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write_characteristic_callback write_characteristic_cb;
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read_descriptor_callback read_descriptor_cb;
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write_descriptor_callback write_descriptor_cb;
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execute_write_callback execute_write_cb;
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read_remote_rssi_callback read_remote_rssi_cb;
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listen_callback listen_cb;
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} btgatt_client_callbacks_t;
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/** Represents the standard BT-GATT client interface. */
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typedef struct {
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/** Registers a GATT client application with the stack */
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bt_status_t (*register_client)( bt_uuid_t *uuid );
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/** Unregister a client application from the stack */
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bt_status_t (*unregister_client)(int client_if );
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/** Start or stop LE device scanning */
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bt_status_t (*scan)( int client_if, bool start );
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/** Create a connection to a remote LE or dual-mode device */
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bt_status_t (*connect)( int client_if, const bt_bdaddr_t *bd_addr,
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bool is_direct );
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/** Disconnect a remote device or cancel a pending connection */
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bt_status_t (*disconnect)( int client_if, const bt_bdaddr_t *bd_addr,
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int conn_id);
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/** Start or stop advertisements to listen for incoming connections */
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bt_status_t (*listen)(int client_if, bool start);
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/** Clear the attribute cache for a given device */
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bt_status_t (*refresh)( int client_if, const bt_bdaddr_t *bd_addr );
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/**
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* Enumerate all GATT services on a connected device.
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* Optionally, the results can be filtered for a given UUID.
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*/
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bt_status_t (*search_service)(int conn_id, bt_uuid_t *filter_uuid );
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/**
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* Enumerate included services for a given service.
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* Set start_incl_srvc_id to NULL to get the first included service.
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*/
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bt_status_t (*get_included_service)( int conn_id, btgatt_srvc_id_t *srvc_id,
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btgatt_srvc_id_t *start_incl_srvc_id);
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/**
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* Enumerate characteristics for a given service.
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* Set start_char_id to NULL to get the first characteristic.
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*/
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bt_status_t (*get_characteristic)( int conn_id,
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btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *start_char_id);
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/**
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* Enumerate descriptors for a given characteristic.
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* Set start_descr_id to NULL to get the first descriptor.
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*/
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bt_status_t (*get_descriptor)( int conn_id,
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btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
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btgatt_gatt_id_t *start_descr_id);
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/** Read a characteristic on a remote device */
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bt_status_t (*read_characteristic)( int conn_id,
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btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
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int auth_req );
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/** Write a remote characteristic */
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bt_status_t (*write_characteristic)(int conn_id,
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btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
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int write_type, int len, int auth_req,
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char* p_value);
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/** Read the descriptor for a given characteristic */
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bt_status_t (*read_descriptor)(int conn_id,
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btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
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btgatt_gatt_id_t *descr_id, int auth_req);
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/** Write a remote descriptor for a given characteristic */
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bt_status_t (*write_descriptor)( int conn_id,
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btgatt_srvc_id_t *srvc_id, btgatt_gatt_id_t *char_id,
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btgatt_gatt_id_t *descr_id, int write_type, int len,
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int auth_req, char* p_value);
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/** Execute a prepared write operation */
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bt_status_t (*execute_write)(int conn_id, int execute);
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/**
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* Register to receive notifications or indications for a given
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* characteristic
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*/
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bt_status_t (*register_for_notification)( int client_if,
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const bt_bdaddr_t *bd_addr, btgatt_srvc_id_t *srvc_id,
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btgatt_gatt_id_t *char_id);
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/** Deregister a previous request for notifications/indications */
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bt_status_t (*deregister_for_notification)( int client_if,
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const bt_bdaddr_t *bd_addr, btgatt_srvc_id_t *srvc_id,
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btgatt_gatt_id_t *char_id);
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/** Request RSSI for a given remote device */
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bt_status_t (*read_remote_rssi)( int client_if, const bt_bdaddr_t *bd_addr);
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/** Determine the type of the remote device (LE, BR/EDR, Dual-mode) */
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int (*get_device_type)( const bt_bdaddr_t *bd_addr );
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/** Set the advertising data or scan response data */
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bt_status_t (*set_adv_data)(int server_if, bool set_scan_rsp, bool include_name,
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bool include_txpower, int min_interval, int max_interval, int appearance,
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uint16_t manufacturer_len, char* manufacturer_data,
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uint16_t service_data_len, char* service_data,
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uint16_t service_uuid_len, char* service_uuid);
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/** Test mode interface */
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bt_status_t (*test_command)( int command, btgatt_test_params_t* params);
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} btgatt_client_interface_t;
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__END_DECLS
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#endif /* ANDROID_INCLUDE_BT_GATT_CLIENT_H */
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