bt_gatt_server.h
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1 /*
2  * Copyright (C) 2013 The Android Open Source Project
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 
18 #ifndef ANDROID_INCLUDE_BT_GATT_SERVER_H
19 #define ANDROID_INCLUDE_BT_GATT_SERVER_H
20 
21 #include <stdint.h>
22 
23 #include "bt_gatt_types.h"
24 
25 __BEGIN_DECLS
26 
27 /** GATT value type used in response to remote read requests */
28 typedef struct
29 {
30  uint8_t value[BTGATT_MAX_ATTR_LEN];
31  uint16_t handle;
32  uint16_t offset;
33  uint16_t len;
34  uint8_t auth_req;
36 
37 /** GATT remote read request response type */
38 typedef union
39 {
41  uint16_t handle;
43 
44 /** BT-GATT Server callback structure. */
45 
46 /** Callback invoked in response to register_server */
47 typedef void (*register_server_callback)(int status, int server_if,
48  bt_uuid_t *app_uuid);
49 
50 /** Callback indicating that a remote device has connected or been disconnected */
51 typedef void (*connection_callback)(int conn_id, int server_if, int connected,
52  bt_bdaddr_t *bda);
53 
54 /** Callback invoked in response to create_service */
55 typedef void (*service_added_callback)(int status, int server_if,
56  btgatt_srvc_id_t *srvc_id, int srvc_handle);
57 
58 /** Callback indicating that an included service has been added to a service */
59 typedef void (*included_service_added_callback)(int status, int server_if,
60  int srvc_handle, int incl_srvc_handle);
61 
62 /** Callback invoked when a characteristic has been added to a service */
63 typedef void (*characteristic_added_callback)(int status, int server_if,
64  bt_uuid_t *uuid, int srvc_handle, int char_handle);
65 
66 /** Callback invoked when a descriptor has been added to a characteristic */
67 typedef void (*descriptor_added_callback)(int status, int server_if,
68  bt_uuid_t *uuid, int srvc_handle, int descr_handle);
69 
70 /** Callback invoked in response to start_service */
71 typedef void (*service_started_callback)(int status, int server_if,
72  int srvc_handle);
73 
74 /** Callback invoked in response to stop_service */
75 typedef void (*service_stopped_callback)(int status, int server_if,
76  int srvc_handle);
77 
78 /** Callback triggered when a service has been deleted */
79 typedef void (*service_deleted_callback)(int status, int server_if,
80  int srvc_handle);
81 
82 /**
83  * Callback invoked when a remote device has requested to read a characteristic
84  * or descriptor. The application must respond by calling send_response
85  */
86 typedef void (*request_read_callback)(int conn_id, int trans_id, bt_bdaddr_t *bda,
87  int attr_handle, int offset, bool is_long);
88 
89 /**
90  * Callback invoked when a remote device has requested to write to a
91  * characteristic or descriptor.
92  */
93 typedef void (*request_write_callback)(int conn_id, int trans_id, bt_bdaddr_t *bda,
94  int attr_handle, int offset, int length,
95  bool need_rsp, bool is_prep, uint8_t* value);
96 
97 /** Callback invoked when a previously prepared write is to be executed */
98 typedef void (*request_exec_write_callback)(int conn_id, int trans_id,
99  bt_bdaddr_t *bda, int exec_write);
100 
101 /**
102  * Callback triggered in response to send_response if the remote device
103  * sends a confirmation.
104  */
105 typedef void (*response_confirmation_callback)(int status, int handle);
106 
107 /**
108  * Callback confirming that a notification or indication has been sent
109  * to a remote device.
110  */
111 typedef void (*indication_sent_callback)(int conn_id, int status);
112 
113 /**
114  * Callback notifying an application that a remote device connection is currently congested
115  * and cannot receive any more data. An application should avoid sending more data until
116  * a further callback is received indicating the congestion status has been cleared.
117  */
118 typedef void (*congestion_callback)(int conn_id, bool congested);
119 
120 /** Callback invoked when the MTU for a given connection changes */
121 typedef void (*mtu_changed_callback)(int conn_id, int mtu);
122 
123 typedef struct {
141 
142 /** Represents the standard BT-GATT server interface. */
143 typedef struct {
144  /** Registers a GATT server application with the stack */
145  bt_status_t (*register_server)( bt_uuid_t *uuid );
146 
147  /** Unregister a server application from the stack */
148  bt_status_t (*unregister_server)(int server_if );
149 
150  /** Create a connection to a remote peripheral */
151  bt_status_t (*connect)(int server_if, const bt_bdaddr_t *bd_addr,
152  bool is_direct, int transport);
153 
154  /** Disconnect an established connection or cancel a pending one */
155  bt_status_t (*disconnect)(int server_if, const bt_bdaddr_t *bd_addr,
156  int conn_id );
157 
158  /** Create a new service */
159  bt_status_t (*add_service)( int server_if, btgatt_srvc_id_t *srvc_id, int num_handles);
160 
161  /** Assign an included service to it's parent service */
162  bt_status_t (*add_included_service)( int server_if, int service_handle, int included_handle);
163 
164  /** Add a characteristic to a service */
165  bt_status_t (*add_characteristic)( int server_if,
166  int service_handle, bt_uuid_t *uuid,
167  int properties, int permissions);
168 
169  /** Add a descriptor to a given service */
170  bt_status_t (*add_descriptor)(int server_if, int service_handle,
171  bt_uuid_t *uuid, int permissions);
172 
173  /** Starts a local service */
174  bt_status_t (*start_service)(int server_if, int service_handle,
175  int transport);
176 
177  /** Stops a local service */
178  bt_status_t (*stop_service)(int server_if, int service_handle);
179 
180  /** Delete a local service */
181  bt_status_t (*delete_service)(int server_if, int service_handle);
182 
183  /** Send value indication to a remote device */
184  bt_status_t (*send_indication)(int server_if, int attribute_handle,
185  int conn_id, int len, int confirm,
186  char* p_value);
187 
188  /** Send a response to a read/write operation */
189  bt_status_t (*send_response)(int conn_id, int trans_id,
190  int status, btgatt_response_t *response);
191 
193 
194 __END_DECLS
195 
196 #endif /* ANDROID_INCLUDE_BT_GATT_CLIENT_H */
void(* service_added_callback)(int status, int server_if, btgatt_srvc_id_t *srvc_id, int srvc_handle)
void(* included_service_added_callback)(int status, int server_if, int srvc_handle, int incl_srvc_handle)
void(* response_confirmation_callback)(int status, int handle)
void(* register_server_callback)(int status, int server_if, bt_uuid_t *app_uuid)
service_started_callback service_started_cb
descriptor_added_callback descriptor_added_cb
register_server_callback register_server_cb
request_exec_write_callback request_exec_write_cb
void(* characteristic_added_callback)(int status, int server_if, bt_uuid_t *uuid, int srvc_handle, int char_handle)
characteristic_added_callback characteristic_added_cb
request_write_callback request_write_cb
included_service_added_callback included_service_added_cb
#define BTGATT_MAX_ATTR_LEN
void(* indication_sent_callback)(int conn_id, int status)
bt_status_t
Definition: bluetooth.h:80
void(* mtu_changed_callback)(int conn_id, int mtu)
void(* request_read_callback)(int conn_id, int trans_id, bt_bdaddr_t *bda, int attr_handle, int offset, bool is_long)
response_confirmation_callback response_confirmation_cb
service_added_callback service_added_cb
service_deleted_callback service_deleted_cb
request_read_callback request_read_cb
void(* request_exec_write_callback)(int conn_id, int trans_id, bt_bdaddr_t *bda, int exec_write)
void(* congestion_callback)(int conn_id, bool congested)
void(* descriptor_added_callback)(int status, int server_if, bt_uuid_t *uuid, int srvc_handle, int descr_handle)
void(* connection_callback)(int conn_id, int server_if, int connected, bt_bdaddr_t *bda)
connection_callback connection_cb
service_stopped_callback service_stopped_cb
void(* service_started_callback)(int status, int server_if, int srvc_handle)
congestion_callback congestion_cb
void(* service_deleted_callback)(int status, int server_if, int srvc_handle)
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)
void(* service_stopped_callback)(int status, int server_if, int srvc_handle)
btgatt_value_t attr_value
indication_sent_callback indication_sent_cb
mtu_changed_callback mtu_changed_cb