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
197
198
199
200
201
|
/*
* BRLTTY - A background process providing access to the console screen (when in
* text mode) for a blind person using a refreshable braille display.
*
* Copyright (C) 1995-2025 by The BRLTTY Developers.
*
* BRLTTY comes with ABSOLUTELY NO WARRANTY.
*
* This is free software, placed under the terms of the
* GNU Lesser General Public License, as published by the Free Software
* Foundation; either version 2.1 of the License, or (at your option) any
* later version. Please see the file LICENSE-LGPL for details.
*
* Web Page: http://brltty.app/
*
* This software is maintained by Dave Mielke <dave@mielke.cc>.
*/
#include "prologue.h"
#include <string.h>
#include "log.h"
#include "strfmt.h"
#include "io_generic.h"
#include "gio_internal.h"
#include "io_bluetooth.h"
#include "brl.h"
struct GioHandleStruct {
BluetoothConnection *connection;
GioEndpoint *hidEndpoint;
};
static int
disconnectBluetoothResource (GioHandle *handle) {
if (handle->connection) bthCloseConnection(handle->connection);
if (handle->hidEndpoint) gioDisconnectResource(handle->hidEndpoint);
free(handle);
return 1;
}
static GioEndpoint *
getBluetoothChainedEndpoint (GioHandle *handle) {
return handle->hidEndpoint;
}
static const char *
makeBluetoothResourceIdentifier (GioHandle *handle, char *buffer, size_t size) {
return bthMakeConnectionIdentifier(handle->connection, buffer, size);
}
static char *
getBluetoothResourceName (GioHandle *handle, int timeout) {
const char *name = bthGetNameOfDevice(handle->connection, timeout);
if (name) {
char *copy = strdup(name);
if (copy) return copy;
logMallocError();
}
return NULL;
}
static void *
getBluetoothResourceObject (GioHandle *handle) {
return handle->connection;
}
static ssize_t
writeBluetoothData (GioHandle *handle, const void *data, size_t size, int timeout) {
return bthWriteData(handle->connection, data, size);
}
static int
awaitBluetoothInput (GioHandle *handle, int timeout) {
return bthAwaitInput(handle->connection, timeout);
}
static ssize_t
readBluetoothData (
GioHandle *handle, void *buffer, size_t size,
int initialTimeout, int subsequentTimeout
) {
return bthReadData(handle->connection, buffer, size,
initialTimeout, subsequentTimeout);
}
static int
monitorBluetoothInput (GioHandle *handle, AsyncMonitorCallback *callback, void *data) {
return bthMonitorInput(handle->connection, callback, data);
}
static const GioHandleMethods gioBluetoothMethods = {
.disconnectResource = disconnectBluetoothResource,
.getChainedEndpoint = getBluetoothChainedEndpoint,
.makeResourceIdentifier = makeBluetoothResourceIdentifier,
.getResourceName = getBluetoothResourceName,
.getResourceObject = getBluetoothResourceObject,
.writeData = writeBluetoothData,
.awaitInput = awaitBluetoothInput,
.readData = readBluetoothData,
.monitorInput = monitorBluetoothInput,
};
static int
testBluetoothIdentifier (const char **identifier) {
return isBluetoothDeviceIdentifier(identifier);
}
static const GioPublicProperties gioPublicProperties_bluetooth = {
.testIdentifier = testBluetoothIdentifier,
.type = {
.name = "Bluetooth",
.identifier = GIO_TYPE_BLUETOOTH
}
};
static int
isBluetoothSupported (const GioDescriptor *descriptor) {
return descriptor->bluetooth.channelNumber || descriptor->bluetooth.discoverChannel;
}
static const GioOptions *
getBluetoothOptions (const GioDescriptor *descriptor) {
return &descriptor->bluetooth.options;
}
static const GioHandleMethods *
getBluetoothMethods (void) {
return &gioBluetoothMethods;
}
static GioEndpoint *
getHidEndpoint (uint64_t address, const GioDescriptor *descriptor) {
char identifier[0X40];
STR_BEGIN(identifier, sizeof(identifier));
STR_PRINTF("hid:address=");
STR_FORMAT(bthFormatAddress, address);
STR_END;
return gioConnectResource(identifier, descriptor);
}
static GioHandle *
connectBluetoothResource (
const char *identifier,
const GioDescriptor *descriptor
) {
GioHandle *handle = malloc(sizeof(*handle));
if (handle) {
memset(handle, 0, sizeof(*handle));
BluetoothConnectionRequest request;
bthInitializeConnectionRequest(&request);
request.driver = braille->definition.code;
request.channel = descriptor->bluetooth.channelNumber;
request.discover = descriptor->bluetooth.discoverChannel;
if (bthApplyParameters(&request, identifier)) {
if (gioIsHidSupported(descriptor)) {
GioEndpoint *hidEndpoint = getHidEndpoint(request.address, descriptor);
if (hidEndpoint) {
handle->hidEndpoint = hidEndpoint;
return handle;
}
}
if ((handle->connection = bthOpenConnection(&request))) {
return handle;
}
}
free(handle);
} else {
logMallocError();
}
return NULL;
}
static const GioPrivateProperties gioPrivateProperties_bluetooth = {
.isSupported = isBluetoothSupported,
.getOptions = getBluetoothOptions,
.getHandleMethods = getBluetoothMethods,
.connectResource = connectBluetoothResource
};
const GioProperties gioProperties_bluetooth = {
.public = &gioPublicProperties_bluetooth,
.private = &gioPrivateProperties_bluetooth
};
|
