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
|
/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtDeclarative module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef USBHOSTCOMM_H
#define USBHOSTCOMM_H
// Based on the official usbostrouter header, modified to remove dependancy on
// the client DLL
#include <e32base.h>
typedef int TOstProtIds;
class RUsbOstComm : public RSessionBase
{
public:
RUsbOstComm();
TInt Connect();
TInt Disconnect();
TInt Open();
TInt Close();
TInt RegisterProtocolID(TOstProtIds aId, TBool aNeedHeader);
void ReadMessage(TRequestStatus& aStatus, TDes8& aDes);
TInt ReadCancel();
void WriteMessage(TRequestStatus& aStatus, const TDesC8& aDes, TBool aHasHeader=EFalse);
TVersion Version() const;
private:
enum TUsbOstCmdCode
{
EUsbOstCmdCodeFirst,
EUsbOstCmdConnect,
EUsbOstCmdDisconnect,
EUsbOstCmdCodeGetAcmConfig,
EUsbOstCmdCodeSetAcmConfig,
EUsbOstCmdCodeOpen,
EUsbOstCmdCodeClose,
EUsbOstCmdCodeRegisterId,
EUsbOstCmdCodeRegisterIds,
EUsbOstCmdCodeUnRegisterId,
EUsbOstCmdCodeUnRegisterIds,
EUsbOstCmdCodeReadMsg,
EUsbOstCmdCodeReadCancel,
EUsbOstCmdCodeWriteMsg,
EUsbOstCmdCodeWriteCancel,
EUsbOstCmdCodeLast
};
};
RUsbOstComm::RUsbOstComm()
{
}
TInt RUsbOstComm::Connect()
{
_LIT(KUsbOstServerName, "!UsbOstRouter");
_LIT(KUsbOstServerImageName, "usbostrouter");
const TUid KUsbOstServerUid = { 0x200170BE };
TInt startupAttempts = 2;
for(;;) {
TInt ret = CreateSession(KUsbOstServerName, TVersion(1,0,0));
if (ret != KErrNotFound && ret != KErrServerTerminated) {
return ret;
}
if (startupAttempts-- == 0) {
return ret;
}
RProcess server;
ret = server.Create(KUsbOstServerImageName, KNullDesC, KUsbOstServerUid);
if (ret != KErrNone)
return ret;
TRequestStatus serverDiedRequestStatus;
server.Rendezvous(serverDiedRequestStatus);
if (serverDiedRequestStatus != KRequestPending) {
// Abort startup
server.Kill(KErrNone);
} else {
// Logon OK - start the server
server.Resume();
}
User::WaitForRequest(serverDiedRequestStatus);
ret = (server.ExitType() == EExitPanic) ? KErrGeneral : serverDiedRequestStatus.Int();
server.Close();
if (ret != KErrNone && ret != KErrAlreadyExists) {
return ret;
}
}
}
TInt RUsbOstComm::Disconnect()
{
return SendReceive(EUsbOstCmdDisconnect);
}
TInt RUsbOstComm::Open()
{
return SendReceive(EUsbOstCmdCodeOpen);
}
TInt RUsbOstComm::Close()
{
TInt err = SendReceive(EUsbOstCmdCodeClose);
RHandleBase::Close();
return err;
}
TInt RUsbOstComm::RegisterProtocolID(const TOstProtIds aId, TBool aNeedHeader)
{
TIpcArgs args(aId, aNeedHeader);
return SendReceive(EUsbOstCmdCodeRegisterId, args);
}
void RUsbOstComm::ReadMessage(TRequestStatus& aStatus, TDes8& aDes)
{
TIpcArgs args(aDes.MaxLength(), &aDes);
SendReceive(EUsbOstCmdCodeReadMsg, args, aStatus);
}
TInt RUsbOstComm::ReadCancel()
{
return SendReceive(EUsbOstCmdCodeReadCancel);
}
void RUsbOstComm::WriteMessage(TRequestStatus& aStatus, const TDesC8& aDes, TBool aHasHeader)
{
TIpcArgs args(aHasHeader, aDes.Length(), &aDes);
SendReceive(EUsbOstCmdCodeWriteMsg, args, aStatus);
}
typedef TVersion (*TVersionFunction)(const RUsbOstComm*);
const TInt KVersionOrdinal = 17;
TVersion RUsbOstComm::Version() const
{
// This function has to go to the DLL, unfortunately
TVersion result; // Return 0.0.0 on any error
RLibrary lib;
TInt err = lib.Load(_L("usbostcomm"));
if (err) return result;
TLibraryFunction fn = lib.Lookup(KVersionOrdinal);
if (fn)
result = ((TVersionFunction)fn)(this);
lib.Close();
return result;
}
#endif //USBHOSTCOMM_H
|
