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
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
|
/*===========================================================================
FILE:
QDLProtocolServer.cpp
DESCRIPTION:
QDL protocol packet server
PUBLIC CLASSES AND METHODS:
cQDLProtocolServer
Copyright (c) 2011, Code Aurora Forum. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
* Neither the name of Code Aurora Forum nor
the names of its contributors may be used to endorse or promote
products derived from this software without specific prior written
permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
===========================================================================*/
//---------------------------------------------------------------------------
// Include Files
//---------------------------------------------------------------------------
#include "StdAfx.h"
#include "QDLProtocolServer.h"
#include "QDLEnum.h"
//---------------------------------------------------------------------------
// Definitions
//---------------------------------------------------------------------------
/*=========================================================================*/
// cQDLProtocolServer Methods
/*=========================================================================*/
/*===========================================================================
METHOD:
cQDLProtocolServer (Public Method)
DESCRIPTION:
Constructor
PARAMETERS:
bufferSzRx [ I ] - Size of data buffer for incoming data
SEQUENCING:
None (constructs sequencing objects)
RETURN VALUE:
None
===========================================================================*/
cQDLProtocolServer::cQDLProtocolServer(
ULONG bufferSzRx,
ULONG logSz )
: cHDLCProtocolServer( ePROTOCOL_QDL_RX,
ePROTOCOL_QDL_TX,
bufferSzRx,
logSz )
{
// Nothing to do
}
/*===========================================================================
METHOD:
~cQDLProtocolServer (Public Method)
DESCRIPTION:
Destructor
SEQUENCING:
None (destroys sequencing objects)
RETURN VALUE:
None
===========================================================================*/
cQDLProtocolServer::~cQDLProtocolServer()
{
// Nothing to do
}
/*===========================================================================
METHOD:
EncodeTxData (Internal Method)
DESCRIPTION:
Encode data for transmission
PARAMETERS:
pBuffer [ I ] - Data to be encoded
bEncoded [ O ] - Do we even encoded data?
SEQUENCING:
None (must be called from protocol server thread)
RETURN VALUE:
sSharedBuffer * - Encoded data (0 upon error when encoding is indicated)
===========================================================================*/
sSharedBuffer * cQDLProtocolServer::EncodeTxData(
sSharedBuffer * pBuffer,
bool & bEncoded )
{
// We encoded data
bEncoded = true;
if (pBuffer != 0 && pBuffer->IsValid() == true)
{
const BYTE * pReqBuf = mpActiveRequest->mRequest.GetBuffer();
eQDLCommand reqCmd = (eQDLCommand)pReqBuf[0];
if (reqCmd == eQDL_CMD_WRITE_UNFRAMED_REQ)
{
// The write request is not HDLC encoded
bEncoded = false;
}
}
if (bEncoded == true)
{
// Base class can handle HDLC encoding
return cHDLCProtocolServer::EncodeTxData( pBuffer, bEncoded );
}
return 0;
}
/*===========================================================================
METHOD:
IsResponse (Internal Method)
DESCRIPTION:
Is the passed in data a response to the current request?
PARAMETERS:
rsp [ I ] - Candidate response
SEQUENCING:
None (must be called from protocol server thread)
RETURN VALUE:
bool
===========================================================================*/
bool cQDLProtocolServer::IsResponse( const sProtocolBuffer & rsp )
{
// Assume not
bool bRC = false;
if ( (mpActiveRequest == 0)
|| (mpActiveRequest->mRequest.IsValid() == false)
|| (mpActiveRequest->mbWaitingForResponse == false)
|| (rsp.IsValid() == false) )
{
return bRC;
}
const BYTE * pReqBuf = mpActiveRequest->mRequest.GetBuffer();
const BYTE * pRspBuf = rsp.GetBuffer();
eQDLCommand reqCmd = (eQDLCommand)pReqBuf[0];
eQDLCommand rspCmd = (eQDLCommand)pRspBuf[0];
switch (reqCmd)
{
case eQDL_CMD_HELLO_REQ:
if ( (rspCmd == eQDL_CMD_HELLO_RSP)
|| (rspCmd == eQDL_CMD_ERROR) )
{
bRC = true;
}
break;
case eQDL_CMD_OPEN_UNFRAMED_REQ:
if ( (rspCmd == eQDL_CMD_OPEN_UNFRAMED_RSP)
|| (rspCmd == eQDL_CMD_ERROR) )
{
bRC = true;
}
break;
case eQDL_CMD_WRITE_UNFRAMED_REQ:
if ( (rspCmd == eQDL_CMD_WRITE_UNFRAMED_RSP)
|| (rspCmd == eQDL_CMD_ERROR) )
{
bRC = true;
}
break;
case eQDL_CMD_SESSION_DONE_REQ:
if ( (rspCmd == eQDL_CMD_SESSION_DONE_RSP)
|| (rspCmd == eQDL_CMD_ERROR) )
{
bRC = true;
}
break;
case eQDL_CMD_DOWNLOAD_REQ:
case eQDL_CMD_SESSION_CLOSE_REQ:
if (rspCmd == eQDL_CMD_ERROR)
{
bRC = true;
}
break;
case eQDL_CMD_GET_IMAGE_PREF_REQ:
if ( (rspCmd == eQDL_CMD_GET_IMAGE_PREF_RSP)
|| (rspCmd == eQDL_CMD_ERROR) )
{
bRC = true;
}
break;
}
return bRC;
}
/*===========================================================================
METHOD:
IsTxAbortResponse (Internal Method)
DESCRIPTION:
Is the passed in data a response that aborts the current request?
PARAMETERS:
rsp [ I ] - Candidate response
SEQUENCING:
None (must be called from protocol server thread)
RETURN VALUE:
bool
===========================================================================*/
bool cQDLProtocolServer::IsTxAbortResponse( const sProtocolBuffer & rsp )
{
// Assume not
bool bRC = false;
if ( (mpActiveRequest == 0)
|| (mpActiveRequest->mRequest.IsValid() == false)
|| (mpActiveRequest->mbWaitingForResponse == true)
|| (rsp.IsValid() == false) )
{
return bRC;
}
// If we are in the middle of a transmission an we receive an error
// packet then we abort
const BYTE * pRspBuf = rsp.GetBuffer();
eQDLCommand rspCmd = (eQDLCommand)pRspBuf[0];
if (rspCmd == eQDL_CMD_ERROR)
{
bRC = true;
}
return bRC;
}
|
