1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
/*
* 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 "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 */
|
