|
0
|
1 |
/*
|
|
|
2 |
* Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
|
|
|
3 |
* All rights reserved.
|
|
|
4 |
* This component and the accompanying materials are made available
|
|
|
5 |
* under the terms of the License "Eclipse Public License v1.0"
|
|
|
6 |
* which accompanies this distribution, and is available
|
|
|
7 |
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
|
|
|
8 |
*
|
|
|
9 |
* Initial Contributors:
|
|
|
10 |
* Nokia Corporation - initial contribution.
|
|
|
11 |
*
|
|
|
12 |
* Contributors:
|
|
|
13 |
*
|
|
|
14 |
* Description:
|
|
|
15 |
*
|
|
|
16 |
*/
|
|
|
17 |
|
|
|
18 |
|
|
|
19 |
/**
|
|
|
20 |
@file
|
|
|
21 |
@internalTechnology
|
|
|
22 |
*/
|
|
|
23 |
|
|
|
24 |
#include "cbulkonlytransport.h"
|
|
|
25 |
#include "cbulkonlytransportusbcscldd.h"
|
|
|
26 |
#include "usbmsshared.h"
|
|
|
27 |
#include "massstoragedebug.h"
|
|
|
28 |
#include "cusbmassstorageserver.h"
|
|
|
29 |
|
|
|
30 |
|
|
|
31 |
//This value defined in USB Mass Storage Bulk Only Transrt spec and not supposed to be changed
|
|
|
32 |
LOCAL_D const TInt KRequiredNumberOfEndpoints = 2; // in addition to endpoint 0.
|
|
|
33 |
|
|
|
34 |
LOCAL_D const TInt KUsbNumInterfacesOffset = 4;
|
|
|
35 |
|
|
|
36 |
#ifdef MSDC_MULTITHREADED
|
|
|
37 |
//Only used in DB. The first 2K of KMaxScBufferSize for sending CSW
|
|
|
38 |
static const TUint32 KCswBufferSize = 2 * 1024;
|
|
|
39 |
#endif
|
|
|
40 |
|
|
|
41 |
////////////////////////////////////
|
|
|
42 |
/**
|
|
|
43 |
Called by CBulkOnlyTransportUsbcScLdd to create an instance of CControlInterfaceUsbcScLdd
|
|
|
44 |
|
|
|
45 |
@param aParent reference to the CBulkOnlyTransportUsbcScLdd
|
|
|
46 |
*/
|
|
|
47 |
|
|
|
48 |
|
|
|
49 |
CControlInterfaceUsbcScLdd* CControlInterfaceUsbcScLdd::NewL(CBulkOnlyTransportUsbcScLdd& aParent)
|
|
|
50 |
{
|
|
|
51 |
CControlInterfaceUsbcScLdd* self = new(ELeave) CControlInterfaceUsbcScLdd(aParent);
|
|
|
52 |
CleanupStack::PushL(self);
|
|
|
53 |
self->ConstructL();
|
|
|
54 |
CActiveScheduler::Add(self);
|
|
|
55 |
CleanupStack::Pop();
|
|
|
56 |
return self;
|
|
|
57 |
}
|
|
|
58 |
|
|
|
59 |
|
|
|
60 |
void CControlInterfaceUsbcScLdd::ConstructL()
|
|
|
61 |
{
|
|
|
62 |
}
|
|
|
63 |
|
|
|
64 |
|
|
|
65 |
/**
|
|
|
66 |
c'tor
|
|
|
67 |
|
|
|
68 |
@param aParent reference to the CBulkOnlyTransportUsbcScLdd
|
|
|
69 |
*/
|
|
|
70 |
CControlInterfaceUsbcScLdd::CControlInterfaceUsbcScLdd(CBulkOnlyTransportUsbcScLdd& aParent)
|
|
|
71 |
:CActive(EPriorityStandard),
|
|
|
72 |
iParent(aParent),
|
|
|
73 |
iCurrentState(ENone)
|
|
|
74 |
{
|
|
|
75 |
}
|
|
|
76 |
|
|
|
77 |
|
|
|
78 |
/**
|
|
|
79 |
d'tor
|
|
|
80 |
*/
|
|
|
81 |
CControlInterfaceUsbcScLdd::~CControlInterfaceUsbcScLdd()
|
|
|
82 |
{
|
|
|
83 |
__FNLOG("CControlInterfaceUsbcScLdd::~CControlInterfaceUsbcScLdd ");
|
|
|
84 |
Cancel();
|
|
|
85 |
iEp0Buf.Close();
|
|
|
86 |
}
|
|
|
87 |
|
|
|
88 |
TInt CControlInterfaceUsbcScLdd::OpenEp0()
|
|
|
89 |
{
|
|
|
90 |
TInt res = iParent.Ldd().OpenEndpoint(iEp0Buf,0);
|
|
|
91 |
return res;
|
|
|
92 |
}
|
|
|
93 |
|
|
|
94 |
/**
|
|
|
95 |
Called by CBulkOnlyTransport HwStart to start control interface
|
|
|
96 |
*/
|
|
|
97 |
TInt CControlInterfaceUsbcScLdd::Start()
|
|
|
98 |
{
|
|
|
99 |
__FNLOG("CControlInterfaceUsbcScLdd::Start ");
|
|
|
100 |
TInt res = ReadEp0Data();
|
|
|
101 |
return (res);
|
|
|
102 |
}
|
|
|
103 |
|
|
|
104 |
|
|
|
105 |
/**
|
|
|
106 |
Called by desctructor of CBulkOnlyTransportUsbcScLdd to stop control interface
|
|
|
107 |
*/
|
|
|
108 |
void CControlInterfaceUsbcScLdd::Stop()
|
|
|
109 |
{
|
|
|
110 |
__FNLOG("CControlInterfaceUsbcScLdd::Stop ");
|
|
|
111 |
if (!IsActive())
|
|
|
112 |
{
|
|
|
113 |
__PRINT(_L("Not active\n"));
|
|
|
114 |
return;
|
|
|
115 |
}
|
|
|
116 |
|
|
|
117 |
__PRINT(_L("\nStopping...\n"));
|
|
|
118 |
|
|
|
119 |
|
|
|
120 |
iCurrentState = ENone;
|
|
|
121 |
|
|
|
122 |
Cancel();
|
|
|
123 |
}
|
|
|
124 |
|
|
|
125 |
|
|
|
126 |
/**
|
|
|
127 |
Cancel outstanding request (if any)
|
|
|
128 |
*/
|
|
|
129 |
void CControlInterfaceUsbcScLdd::DoCancel()
|
|
|
130 |
{
|
|
|
131 |
__FNLOG("CControlInterfaceUsbcScLdd::DoCancel ");
|
|
|
132 |
switch(iCurrentState)
|
|
|
133 |
{
|
|
|
134 |
case EReadEp0Data:
|
|
|
135 |
iParent.Ldd().ReadCancel(KUsbcScEndpointZero);
|
|
|
136 |
break;
|
|
|
137 |
case ESendMaxLun:
|
|
|
138 |
iParent.Ldd().WriteCancel(KUsbcScEndpointZero);
|
|
|
139 |
break;
|
|
|
140 |
default:
|
|
|
141 |
__PRINT(_L("\nWrong state !\n"));
|
|
|
142 |
__ASSERT_DEBUG(EFalse, User::Panic(KUsbMsSvrPncCat, EMsControlInterfaceBadState));
|
|
|
143 |
}
|
|
|
144 |
}
|
|
|
145 |
|
|
|
146 |
|
|
|
147 |
/**
|
|
|
148 |
Implement CControlInterfaceUsbcScLdd state machine
|
|
|
149 |
*/
|
|
|
150 |
void CControlInterfaceUsbcScLdd::RunL()
|
|
|
151 |
{
|
|
|
152 |
__FNLOG("CControlInterfaceUsbcScLdd::RunL ");
|
|
|
153 |
if (iStatus != KErrNone)
|
|
|
154 |
{
|
|
|
155 |
__PRINT1(_L("Error %d in RunL\n"), iStatus.Int());
|
|
|
156 |
|
|
|
157 |
//read EP0 again
|
|
|
158 |
ReadEp0Data();
|
|
|
159 |
return;
|
|
|
160 |
}
|
|
|
161 |
|
|
|
162 |
ReadEp0Data();
|
|
|
163 |
}
|
|
|
164 |
|
|
|
165 |
/**
|
|
|
166 |
Actual Read to RDevUsbcScClient BIL
|
|
|
167 |
*/
|
|
|
168 |
TInt CControlInterfaceUsbcScLdd::ReadUsbEp0()
|
|
|
169 |
{
|
|
|
170 |
iCurrentState = EReadEp0Data;
|
|
|
171 |
iStatus = KRequestPending;
|
|
|
172 |
return iEp0Buf.GetBuffer (iEp0Packet,iEp0Size,iEp0Zlp,iStatus);
|
|
|
173 |
}
|
|
|
174 |
|
|
|
175 |
|
|
|
176 |
/**
|
|
|
177 |
Post a read request to EEndpoint0 to read request header
|
|
|
178 |
*/
|
|
|
179 |
TInt CControlInterfaceUsbcScLdd::ReadEp0Data()
|
|
|
180 |
{
|
|
|
181 |
__FNLOG("CControlInterfaceUsbcScLdd::ReadEp0Data ");
|
|
|
182 |
if (IsActive())
|
|
|
183 |
{
|
|
|
184 |
__PRINT(_L("Still active\n"));
|
|
|
185 |
return KErrServerBusy;
|
|
|
186 |
}
|
|
|
187 |
|
|
|
188 |
TInt r = KErrNone;
|
|
|
189 |
do
|
|
|
190 |
{
|
|
|
191 |
r = ReadUsbEp0();
|
|
|
192 |
if (r == KErrCompletion)
|
|
|
193 |
{
|
|
|
194 |
iStatus = KErrNone;
|
|
|
195 |
DecodeEp0Data();
|
|
|
196 |
}
|
|
|
197 |
else if (r == KErrNone)
|
|
|
198 |
{
|
|
|
199 |
SetActive();
|
|
|
200 |
}
|
|
|
201 |
} while (((r == KErrCompletion) || (r == TEndpointBuffer::KStateChange)) && (!IsActive()));
|
|
|
202 |
return KErrNone;
|
|
|
203 |
}
|
|
|
204 |
|
|
|
205 |
|
|
|
206 |
/**
|
|
|
207 |
Decode request header and do appropriate action - get max LUN info or post a reset request
|
|
|
208 |
*/
|
|
|
209 |
void CControlInterfaceUsbcScLdd::DecodeEp0Data()
|
|
|
210 |
{
|
|
|
211 |
__FNLOG("CControlInterfaceUsbcScLdd::DecodeEp0Data ");
|
|
|
212 |
|
|
|
213 |
if (IsActive())
|
|
|
214 |
{
|
|
|
215 |
__PRINT(_L("Still active\n"));
|
|
|
216 |
__ASSERT_DEBUG(EFalse, User::Panic(KUsbMsSvrPncCat, EMsControlInterfaceStillActive));
|
|
|
217 |
return;
|
|
|
218 |
}
|
|
|
219 |
|
|
|
220 |
TPtrC8 ep0ReadDataPtr((TUint8*)iEp0Packet, iEp0Size);
|
|
|
221 |
TInt err = iRequestHeader.Decode(ep0ReadDataPtr);
|
|
|
222 |
|
|
|
223 |
if(err != KErrNone)
|
|
|
224 |
return;
|
|
|
225 |
|
|
|
226 |
switch(iRequestHeader.iRequest)
|
|
|
227 |
{
|
|
|
228 |
//
|
|
|
229 |
// GET MAX LUN (0xFE)
|
|
|
230 |
//
|
|
|
231 |
case TUsbRequestHdr::EReqGetMaxLun:
|
|
|
232 |
{
|
|
|
233 |
__PRINT1(_L("DecodeEp0Data : 'Get Max LUN' Request MaxLun = %d"),iParent.MaxLun() );
|
|
|
234 |
|
|
|
235 |
if ( iRequestHeader.iRequestType != 0xA1 //value from USB MS BOT spec
|
|
|
236 |
|| iRequestHeader.iIndex > 15
|
|
|
237 |
|| iRequestHeader.iValue != 0
|
|
|
238 |
|| iRequestHeader.iLength != 1)
|
|
|
239 |
{
|
|
|
240 |
__PRINT(_L("GetMaxLun command packet check error"));
|
|
|
241 |
iParent.Ldd().EndpointZeroRequestError();
|
|
|
242 |
break;
|
|
|
243 |
}
|
|
|
244 |
|
|
|
245 |
TPtr8* ep0WriteDataPtr = NULL;
|
|
|
246 |
TUint ep0Length;
|
|
|
247 |
iEp0Buf.GetInBufferRange(((TAny*&)ep0WriteDataPtr),ep0Length);
|
|
|
248 |
ep0WriteDataPtr->SetLength(1); //Return only 1 byte to host
|
|
|
249 |
ep0WriteDataPtr->Fill(0);
|
|
|
250 |
ep0WriteDataPtr->Fill(iParent.MaxLun()); // Supported Units
|
|
|
251 |
TInt length = ep0WriteDataPtr->Length();
|
|
|
252 |
err = iEp0Buf.WriteBuffer((TPtr8*)(ep0WriteDataPtr->Ptr()),length,ETrue,iStatus);
|
|
|
253 |
|
|
|
254 |
iCurrentState = ESendMaxLun;
|
|
|
255 |
SetActive();
|
|
|
256 |
|
|
|
257 |
return;
|
|
|
258 |
}
|
|
|
259 |
//
|
|
|
260 |
// RESET (0xFF)
|
|
|
261 |
//
|
|
|
262 |
case TUsbRequestHdr::EReqReset:
|
|
|
263 |
{
|
|
|
264 |
__PRINT(_L("DecodeEp0Data : 'Mass Storage Reset' Request"));
|
|
|
265 |
|
|
|
266 |
if ( iRequestHeader.iRequestType != 0x21 //value from USB MS BOT spec
|
|
|
267 |
|| iRequestHeader.iIndex > 15
|
|
|
268 |
|| iRequestHeader.iValue != 0
|
|
|
269 |
|| iRequestHeader.iLength != 0)
|
|
|
270 |
{
|
|
|
271 |
__PRINT(_L("MSC Reset command packet check error"));
|
|
|
272 |
iParent.Ldd().EndpointZeroRequestError();
|
|
|
273 |
break;
|
|
|
274 |
}
|
|
|
275 |
|
|
|
276 |
iParent.HwStop();
|
|
|
277 |
iParent.Controller().Reset();
|
|
|
278 |
iParent.HwStart(ETrue);
|
|
|
279 |
|
|
|
280 |
err = iParent.Ldd().SendEp0StatusPacket();
|
|
|
281 |
return;
|
|
|
282 |
}
|
|
|
283 |
//
|
|
|
284 |
// Unknown?
|
|
|
285 |
//
|
|
|
286 |
default:
|
|
|
287 |
{
|
|
|
288 |
__PRINT(_L("DecodeEp0Data : Unknown Request"));
|
|
|
289 |
|
|
|
290 |
}
|
|
|
291 |
}
|
|
|
292 |
ReadEp0Data(); //try to get another request
|
|
|
293 |
}
|
|
|
294 |
|
|
|
295 |
|
|
|
296 |
//
|
|
|
297 |
// --- class CBulkOnlyTransportUsbcScLdd ---------------------------------------------------------
|
|
|
298 |
//
|
|
|
299 |
|
|
|
300 |
CBulkOnlyTransportUsbcScLdd::CBulkOnlyTransportUsbcScLdd(TInt aNumDrives,CUsbMassStorageController& aController)
|
|
|
301 |
:CBulkOnlyTransport(aNumDrives, aController)
|
|
|
302 |
{
|
|
|
303 |
__FNLOG("CBulkOnlyTransportUsbcScLdd::CBulkOnlyTransportUsbcScLdd");
|
|
|
304 |
}
|
|
|
305 |
|
|
|
306 |
/**
|
|
|
307 |
Constructs the CBulkOnlyTransportUsbcScLdd object
|
|
|
308 |
*/
|
|
|
309 |
void CBulkOnlyTransportUsbcScLdd::ConstructL()
|
|
|
310 |
{
|
|
|
311 |
__FNLOG("CBulkOnlyTransportUsbcScLdd::ConstructL()");
|
|
|
312 |
iControlInterface = CControlInterfaceUsbcScLdd::NewL(*this);
|
|
|
313 |
iDeviceStateNotifier = CActiveDeviceStateNotifierBase::NewL(*this, *this);
|
|
|
314 |
iChunk = new RChunk();
|
|
|
315 |
CActiveScheduler::Add(this);
|
|
|
316 |
}
|
|
|
317 |
|
|
|
318 |
|
|
|
319 |
CBulkOnlyTransportUsbcScLdd::~CBulkOnlyTransportUsbcScLdd()
|
|
|
320 |
{
|
|
|
321 |
__FNLOG("CBulkOnlyTransportUsbcScLdd::~CBulkOnlyTransportUsbcScLdd");
|
|
|
322 |
if (iInterfaceConfigured)
|
|
|
323 |
{
|
|
|
324 |
TInt err = iSCReadEndpointBuf.Close();
|
|
|
325 |
err = iSCWriteEndpointBuf.Close();
|
|
|
326 |
delete iControlInterface ;
|
|
|
327 |
delete iDeviceStateNotifier;
|
|
|
328 |
delete iChunk;
|
|
|
329 |
}
|
|
|
330 |
}
|
|
|
331 |
|
|
|
332 |
RDevUsbcScClient& CBulkOnlyTransportUsbcScLdd::Ldd()
|
|
|
333 |
{
|
|
|
334 |
return iLdd;
|
|
|
335 |
}
|
|
|
336 |
|
|
|
337 |
/**
|
|
|
338 |
Set or unset configuration descriptor for USB MassStorage Bulk Only transport
|
|
|
339 |
|
|
|
340 |
@param aUnset indicate whether set or unset descriptor
|
|
|
341 |
@return KErrNone if operation was completed successfully, errorcode otherwise
|
|
|
342 |
*/
|
|
|
343 |
TInt CBulkOnlyTransportUsbcScLdd::SetupConfigurationDescriptor(TBool aUnset)
|
|
|
344 |
{
|
|
|
345 |
__FNLOG("CBulkOnlyTransportUsbcScLdd::SetupConfigurationDescriptor");
|
|
|
346 |
TInt ret(KErrNone);
|
|
|
347 |
|
|
|
348 |
if ((ret = iLdd.Open(0)) != KErrNone)
|
|
|
349 |
return ret;
|
|
|
350 |
|
|
|
351 |
TInt configDescriptorSize(0);
|
|
|
352 |
iLdd.GetConfigurationDescriptorSize(configDescriptorSize);
|
|
|
353 |
if (static_cast<TUint>(configDescriptorSize) != KUsbDescSize_Config)
|
|
|
354 |
{
|
|
|
355 |
return KErrCorrupt;
|
|
|
356 |
}
|
|
|
357 |
|
|
|
358 |
TBuf8<KUsbDescSize_Config> configDescriptor;
|
|
|
359 |
ret = iLdd.GetConfigurationDescriptor(configDescriptor);
|
|
|
360 |
if (ret != KErrNone)
|
|
|
361 |
{
|
|
|
362 |
return ret;
|
|
|
363 |
}
|
|
|
364 |
|
|
|
365 |
// I beleive that other fields setted up during LDD initialisation
|
|
|
366 |
if (aUnset)
|
|
|
367 |
{
|
|
|
368 |
--configDescriptor[KUsbNumInterfacesOffset];
|
|
|
369 |
}
|
|
|
370 |
else
|
|
|
371 |
{
|
|
|
372 |
++configDescriptor[KUsbNumInterfacesOffset];
|
|
|
373 |
}
|
|
|
374 |
ret = iLdd.SetConfigurationDescriptor(configDescriptor);
|
|
|
375 |
|
|
|
376 |
if (aUnset)
|
|
|
377 |
{
|
|
|
378 |
iLdd.Close();
|
|
|
379 |
}
|
|
|
380 |
|
|
|
381 |
return ret;
|
|
|
382 |
}
|
|
|
383 |
|
|
|
384 |
/**
|
|
|
385 |
Set up interface descriptor
|
|
|
386 |
|
|
|
387 |
@return KErrNone if operation was completed successfully, errorcode otherwise
|
|
|
388 |
*/
|
|
|
389 |
TInt CBulkOnlyTransportUsbcScLdd::SetupInterfaceDescriptors()
|
|
|
390 |
{
|
|
|
391 |
__FNLOG("CBulkOnlyTransportUsbcScLdd::SetupInterfaceDescriptors");
|
|
|
392 |
// Device caps
|
|
|
393 |
TUsbDeviceCaps d_caps;
|
|
|
394 |
TInt ret = iLdd.DeviceCaps(d_caps);
|
|
|
395 |
if (ret != KErrNone)
|
|
|
396 |
{
|
|
|
397 |
return ret;
|
|
|
398 |
}
|
|
|
399 |
TInt totalEndpoints = d_caps().iTotalEndpoints;
|
|
|
400 |
if (totalEndpoints < KRequiredNumberOfEndpoints)
|
|
|
401 |
{
|
|
|
402 |
return KErrHardwareNotAvailable;
|
|
|
403 |
}
|
|
|
404 |
|
|
|
405 |
// Endpoint caps
|
|
|
406 |
TUsbcEndpointData data[KUsbcMaxEndpoints];
|
|
|
407 |
TPtr8 dataptr(reinterpret_cast<TUint8*>(data), sizeof(data), sizeof(data));
|
|
|
408 |
ret = iLdd.EndpointCaps(dataptr);
|
|
|
409 |
if (ret != KErrNone)
|
|
|
410 |
{
|
|
|
411 |
return ret;
|
|
|
412 |
}
|
|
|
413 |
|
|
|
414 |
// Set the active interface
|
|
|
415 |
TUsbcScInterfaceInfoBuf ifc;
|
|
|
416 |
TInt ep_found = 0;
|
|
|
417 |
TBool foundBulkIN = EFalse;
|
|
|
418 |
TBool foundBulkOUT = EFalse;
|
|
|
419 |
|
|
|
420 |
for (TInt i = 0; i < totalEndpoints ; i++)
|
|
|
421 |
{
|
|
|
422 |
const TUsbcEndpointCaps* caps = &data[i].iCaps;
|
|
|
423 |
const TInt maxPacketSize = caps->MaxPacketSize();
|
|
|
424 |
if (!foundBulkIN &&
|
|
|
425 |
(caps->iTypesAndDir & (KUsbEpTypeBulk | KUsbEpDirIn)) == (KUsbEpTypeBulk | KUsbEpDirIn))
|
|
|
426 |
{
|
|
|
427 |
// InEndpoint is going to be our TX (IN, write) endpoint
|
|
|
428 |
ifc().iEndpointData[0].iType = KUsbEpTypeBulk;
|
|
|
429 |
ifc().iEndpointData[0].iDir = KUsbEpDirIn;
|
|
|
430 |
ifc().iEndpointData[0].iSize = maxPacketSize;
|
|
|
431 |
ifc().iEndpointData[0].iInterval_Hs = 0;
|
|
|
432 |
ifc().iEndpointData[0].iBufferSize = KMaxScBufferSize;
|
|
|
433 |
foundBulkIN = ETrue;
|
|
|
434 |
if (++ep_found == KRequiredNumberOfEndpoints)
|
|
|
435 |
{
|
|
|
436 |
break;
|
|
|
437 |
}
|
|
|
438 |
continue;
|
|
|
439 |
}
|
|
|
440 |
if (!foundBulkOUT &&
|
|
|
441 |
(caps->iTypesAndDir & (KUsbEpTypeBulk | KUsbEpDirOut)) == (KUsbEpTypeBulk | KUsbEpDirOut))
|
|
|
442 |
{
|
|
|
443 |
// OutEndpoint is going to be our RX (OUT, read) endpoint
|
|
|
444 |
ifc().iEndpointData[1].iType = KUsbEpTypeBulk;
|
|
|
445 |
ifc().iEndpointData[1].iDir = KUsbEpDirOut;
|
|
|
446 |
ifc().iEndpointData[1].iSize = maxPacketSize;
|
|
|
447 |
ifc().iEndpointData[1].iInterval_Hs = 0;
|
|
|
448 |
ifc().iEndpointData[1].iBufferSize = KMaxScBufferSize;
|
|
|
449 |
ifc().iEndpointData[1].iReadSize = KMaxScReadSize;
|
|
|
450 |
|
|
|
451 |
foundBulkOUT = ETrue;
|
|
|
452 |
if (++ep_found == KRequiredNumberOfEndpoints)
|
|
|
453 |
{
|
|
|
454 |
break;
|
|
|
455 |
}
|
|
|
456 |
continue;
|
|
|
457 |
}
|
|
|
458 |
}
|
|
|
459 |
if (ep_found != KRequiredNumberOfEndpoints)
|
|
|
460 |
{
|
|
|
461 |
return KErrHardwareNotAvailable;
|
|
|
462 |
}
|
|
|
463 |
|
|
|
464 |
_LIT16(string, "USB Mass Storage Interface");
|
|
|
465 |
ifc().iString = const_cast<TDesC16*>(&string);
|
|
|
466 |
ifc().iTotalEndpointsUsed = KRequiredNumberOfEndpoints;
|
|
|
467 |
ifc().iClass.iClassNum = 0x08; // Mass Storage
|
|
|
468 |
ifc().iClass.iSubClassNum = 0x06; // SCSI Transparent Command Set
|
|
|
469 |
ifc().iClass.iProtocolNum = 0x50; // Bulk Only Transport
|
|
|
470 |
|
|
|
471 |
if (d_caps().iHighSpeed)
|
|
|
472 |
{
|
|
|
473 |
// Tell the Protocol about it, because it might want to do some
|
|
|
474 |
// optimizing too.
|
|
|
475 |
iProtocol->ReportHighSpeedDevice();
|
|
|
476 |
}
|
|
|
477 |
|
|
|
478 |
if ((ret = iLdd.SetInterface(0, ifc)) == KErrNone)
|
|
|
479 |
{
|
|
|
480 |
return (iLdd.FinalizeInterface(iChunk));
|
|
|
481 |
}
|
|
|
482 |
return ret;
|
|
|
483 |
}
|
|
|
484 |
|
|
|
485 |
void CBulkOnlyTransportUsbcScLdd::ReleaseInterface()
|
|
|
486 |
{
|
|
|
487 |
iLdd.ReleaseInterface(0);
|
|
|
488 |
}
|
|
|
489 |
|
|
|
490 |
|
|
|
491 |
TInt CBulkOnlyTransportUsbcScLdd::StartControlInterface()
|
|
|
492 |
{
|
|
|
493 |
return iControlInterface->Start();
|
|
|
494 |
}
|
|
|
495 |
|
|
|
496 |
void CBulkOnlyTransportUsbcScLdd::CancelControlInterface()
|
|
|
497 |
{
|
|
|
498 |
iControlInterface->Cancel();
|
|
|
499 |
}
|
|
|
500 |
|
|
|
501 |
void CBulkOnlyTransportUsbcScLdd::ActivateDeviceStateNotifier()
|
|
|
502 |
{
|
|
|
503 |
iDeviceStateNotifier->Activate();
|
|
|
504 |
}
|
|
|
505 |
|
|
|
506 |
void CBulkOnlyTransportUsbcScLdd::CancelDeviceStateNotifier()
|
|
|
507 |
{
|
|
|
508 |
iDeviceStateNotifier->Cancel();
|
|
|
509 |
}
|
|
|
510 |
|
|
|
511 |
|
|
|
512 |
void CBulkOnlyTransportUsbcScLdd::CancelReadWriteRequests()
|
|
|
513 |
{
|
|
|
514 |
__FNLOG("CBulkOnlyTransportUsbcScLdd::CancelReadWriteRequests");
|
|
|
515 |
TUsbcScChunkHeader chunkHeader(*iChunk);
|
|
|
516 |
for (TInt i = 0; i < chunkHeader.iAltSettings->iNumOfAltSettings; i++)
|
|
|
517 |
{
|
|
|
518 |
TInt8* endpoint = (TInt8*) (chunkHeader.iAltSettings->iAltTableOffset[i] + (TInt) iChunk->Base());
|
|
|
519 |
TInt numOfEps = chunkHeader.GetNumberOfEndpoints(i);
|
|
|
520 |
__ASSERT_DEBUG(numOfEps >= 0, User::Invariant());
|
|
|
521 |
for (TInt j = 1; j <= numOfEps; j++)
|
|
|
522 |
{
|
|
|
523 |
TUsbcScHdrEndpointRecord* endpointInf = (TUsbcScHdrEndpointRecord*) &(endpoint[j * chunkHeader.iAltSettings->iEpRecordSize]);
|
|
|
524 |
if (endpointInf->Direction() == KUsbScHdrEpDirectionOut)
|
|
|
525 |
{
|
|
|
526 |
iLdd.ReadCancel(endpointInf->iBufferNo);
|
|
|
527 |
}
|
|
|
528 |
if (endpointInf->Direction() == KUsbScHdrEpDirectionIn)
|
|
|
529 |
{
|
|
|
530 |
iLdd.WriteCancel(endpointInf->iBufferNo);
|
|
|
531 |
}
|
|
|
532 |
}
|
|
|
533 |
}
|
|
|
534 |
}
|
|
|
535 |
|
|
|
536 |
void CBulkOnlyTransportUsbcScLdd::AllocateEndpointResources()
|
|
|
537 |
{
|
|
|
538 |
TUsbcScChunkHeader chunkHeader(*iChunk);
|
|
|
539 |
for (TInt i = 0; i < chunkHeader.iAltSettings->iNumOfAltSettings; i++)
|
|
|
540 |
{
|
|
|
541 |
TInt8* endpoint = (TInt8*) (chunkHeader.iAltSettings->iAltTableOffset[i] + (TInt) iChunk->Base());
|
|
|
542 |
|
|
|
543 |
for (TInt j = 1; j <= chunkHeader.GetNumberOfEndpoints(i); j++)
|
|
|
544 |
{
|
|
|
545 |
TUsbcScHdrEndpointRecord* endpointInf = (TUsbcScHdrEndpointRecord*) &(endpoint[j * chunkHeader.iAltSettings->iEpRecordSize]);
|
|
|
546 |
if (endpointInf->Direction() == KUsbScHdrEpDirectionOut)
|
|
|
547 |
{
|
|
|
548 |
iOutEndpoint = j;
|
|
|
549 |
}
|
|
|
550 |
if (endpointInf->Direction() == KUsbScHdrEpDirectionIn)
|
|
|
551 |
{
|
|
|
552 |
iInEndpoint = j;
|
|
|
553 |
}
|
|
|
554 |
}
|
|
|
555 |
}
|
|
|
556 |
|
|
|
557 |
__PRINT(_L("CBulkOnlyTransportUsbcScLdd::Start - Setting up DMA and double buffering\n"));
|
|
|
558 |
// Set up DMA if possible (errors are non-critical)
|
|
|
559 |
TInt err = iLdd.AllocateEndpointResource(iOutEndpoint, EUsbcEndpointResourceDMA);
|
|
|
560 |
if (err != KErrNone)
|
|
|
561 |
{
|
|
|
562 |
__PRINT1(_L("Set DMA on OUT endpoint failed with error code: %d"), err);
|
|
|
563 |
}
|
|
|
564 |
err = iLdd.AllocateEndpointResource(iInEndpoint, EUsbcEndpointResourceDMA);
|
|
|
565 |
if (err != KErrNone)
|
|
|
566 |
{
|
|
|
567 |
__PRINT1(_L("Set DMA on IN endpoint failed with error code: %d"), err);
|
|
|
568 |
}
|
|
|
569 |
|
|
|
570 |
// Set up Double Buffering if possible (errors are non-critical)
|
|
|
571 |
err = iLdd.AllocateEndpointResource(iOutEndpoint, EUsbcEndpointResourceDoubleBuffering);
|
|
|
572 |
if (err != KErrNone)
|
|
|
573 |
{
|
|
|
574 |
__PRINT1(_L("Set Double Buffering on OUT endpoint failed with error code: %d"), err);
|
|
|
575 |
}
|
|
|
576 |
err = iLdd.AllocateEndpointResource(iInEndpoint, EUsbcEndpointResourceDoubleBuffering);
|
|
|
577 |
if (err != KErrNone)
|
|
|
578 |
{
|
|
|
579 |
__PRINT1(_L("Set Double Buffering on IN endpoint failed with error code: %d"), err);
|
|
|
580 |
}
|
|
|
581 |
|
|
|
582 |
|
|
|
583 |
err = OpenEndpoints();
|
|
|
584 |
}
|
|
|
585 |
|
|
|
586 |
TInt CBulkOnlyTransportUsbcScLdd::OpenEndpoints()
|
|
|
587 |
{
|
|
|
588 |
TInt res = iLdd.OpenEndpoint(iSCReadEndpointBuf, iOutEndpoint);
|
|
|
589 |
if (res == KErrNone)
|
|
|
590 |
{
|
|
|
591 |
res = iLdd.OpenEndpoint(iSCWriteEndpointBuf, iInEndpoint);
|
|
|
592 |
if (res == KErrNone)
|
|
|
593 |
{
|
|
|
594 |
iSCWriteEndpointBuf.GetInBufferRange((TAny*&)iDataPtr, iInBufferLength);
|
|
|
595 |
res = iControlInterface->OpenEp0();
|
|
|
596 |
}
|
|
|
597 |
return res;
|
|
|
598 |
}
|
|
|
599 |
|
|
|
600 |
return res;
|
|
|
601 |
}
|
|
|
602 |
|
|
|
603 |
|
|
|
604 |
TInt CBulkOnlyTransportUsbcScLdd::GetDeviceStatus(TUsbcDeviceState& deviceStatus)
|
|
|
605 |
{
|
|
|
606 |
return iLdd.DeviceStatus(deviceStatus);
|
|
|
607 |
}
|
|
|
608 |
|
|
|
609 |
void CBulkOnlyTransportUsbcScLdd::FlushData()
|
|
|
610 |
{
|
|
|
611 |
// Intentionally Left Blank Do Nothing
|
|
|
612 |
}
|
|
|
613 |
|
|
|
614 |
/**
|
|
|
615 |
* Read out rest data from OutEndpoint and discard them
|
|
|
616 |
*/
|
|
|
617 |
void CBulkOnlyTransportUsbcScLdd::ReadAndDiscardData(TInt /*aBytes*/)
|
|
|
618 |
{
|
|
|
619 |
__FNLOG("CBulkOnlyTransport::ReadAndDiscardData");
|
|
|
620 |
TRequestStatus status;
|
|
|
621 |
TInt r = KErrNone; // Lets assume there is no data
|
|
|
622 |
do
|
|
|
623 |
{
|
|
|
624 |
iSCReadSize = 0;
|
|
|
625 |
status = KErrNone;
|
|
|
626 |
r = iSCReadEndpointBuf.TakeBuffer(iSCReadData,iSCReadSize,iReadZlp,status);
|
|
|
627 |
iSCReadEndpointBuf.Expire();
|
|
|
628 |
}
|
|
|
629 |
while (r == KErrCompletion);
|
|
|
630 |
|
|
|
631 |
if (r == KErrNone)
|
|
|
632 |
{
|
|
|
633 |
TRequestStatus* stat = &status;
|
|
|
634 |
User::RequestComplete(stat, KErrNone);
|
|
|
635 |
}
|
|
|
636 |
}
|
|
|
637 |
|
|
|
638 |
/**
|
|
|
639 |
Called by the protocol to determine how many bytes of data are available in the read buffer.
|
|
|
640 |
|
|
|
641 |
@return The number of bytes available in the read buffer
|
|
|
642 |
*/
|
|
|
643 |
TInt CBulkOnlyTransportUsbcScLdd::BytesAvailable()
|
|
|
644 |
{
|
|
|
645 |
// Intentionally Left Blank Do Nothing
|
|
|
646 |
return 0;
|
|
|
647 |
}
|
|
|
648 |
|
|
|
649 |
void CBulkOnlyTransportUsbcScLdd::StallEndpointAndWaitForClear()
|
|
|
650 |
{
|
|
|
651 |
__FNLOG("CBulkOnlyTransportUsbcScLdd::StallEndpointAndWaitForClear");
|
|
|
652 |
|
|
|
653 |
// Now stall this endpoint
|
|
|
654 |
__PRINT1(_L("Stalling endpoint %d"), iInEndpoint);
|
|
|
655 |
TInt r = iLdd.HaltEndpoint(iInEndpoint);
|
|
|
656 |
if (r != KErrNone)
|
|
|
657 |
{
|
|
|
658 |
__PRINT2(_L("Error: stalling ep %d failed: %d"), iInEndpoint, r);
|
|
|
659 |
}
|
|
|
660 |
TEndpointState ep_state;
|
|
|
661 |
TInt i = 0;
|
|
|
662 |
do
|
|
|
663 |
{
|
|
|
664 |
// Wait for 10ms before checking the ep status
|
|
|
665 |
User::After(10000);
|
|
|
666 |
iLdd.EndpointStatus(iInEndpoint, ep_state);
|
|
|
667 |
if (++i >= 550)
|
|
|
668 |
{
|
|
|
669 |
// 5.5 secs should be enough (see 9.2.6.1 Request Processing Timing)
|
|
|
670 |
__PRINT1(_L("Error: Checked for ep %d de-stall for 5.5s - giving up now"), iInEndpoint);
|
|
|
671 |
// We can now only hope for a Reset Recovery
|
|
|
672 |
return;
|
|
|
673 |
}
|
|
|
674 |
} while ((ep_state == EEndpointStateStalled) && iStarted);
|
|
|
675 |
__PRINT2(_L("Checked for ep %d de-stall: %d time(s)"), iInEndpoint, i);
|
|
|
676 |
}
|
|
|
677 |
|
|
|
678 |
/**
|
|
|
679 |
Read CBW data from the host and decode it.
|
|
|
680 |
*/
|
|
|
681 |
void CBulkOnlyTransportUsbcScLdd::ReadCBW()
|
|
|
682 |
{
|
|
|
683 |
__FNLOG("CBulkOnlyTransportUsbcScLdd::ReadCBW");
|
|
|
684 |
if (IsActive())
|
|
|
685 |
{
|
|
|
686 |
__PRINT(_L("Still active\n"));
|
|
|
687 |
__ASSERT_DEBUG(EFalse, User::Panic(KUsbMsSvrPncCat, EMsBulkOnlyStillActive));
|
|
|
688 |
return;
|
|
|
689 |
}
|
|
|
690 |
TInt r = KErrNone;
|
|
|
691 |
do
|
|
|
692 |
{
|
|
|
693 |
r = ReadUsb();
|
|
|
694 |
if ((r == KErrCompletion) && (iSCReadSize == KCbwLength))
|
|
|
695 |
{
|
|
|
696 |
iCurrentState = EWaitForCBW;
|
|
|
697 |
iStatus = KErrNone;
|
|
|
698 |
DecodeCBW();
|
|
|
699 |
iSCReadSize = 0;
|
|
|
700 |
}
|
|
|
701 |
else if (r == KErrNone)
|
|
|
702 |
{
|
|
|
703 |
iCurrentState = EWaitForCBW;
|
|
|
704 |
SetActive();
|
|
|
705 |
}
|
|
|
706 |
else if ((r == KErrCompletion) && (iSCReadSize != KCbwLength))
|
|
|
707 |
{
|
|
|
708 |
ExpireData(iSCReadData);
|
|
|
709 |
}
|
|
|
710 |
}while ((r == KErrCompletion) && (!IsActive()));
|
|
|
711 |
}
|
|
|
712 |
|
|
|
713 |
void CBulkOnlyTransportUsbcScLdd::ExpireData(TAny* aAddress)
|
|
|
714 |
{
|
|
|
715 |
if (aAddress)
|
|
|
716 |
{
|
|
|
717 |
iSCReadEndpointBuf.Expire(aAddress);
|
|
|
718 |
}
|
|
|
719 |
else
|
|
|
720 |
{
|
|
|
721 |
iSCReadEndpointBuf.Expire();
|
|
|
722 |
}
|
|
|
723 |
}
|
|
|
724 |
|
|
|
725 |
void CBulkOnlyTransportUsbcScLdd::ProcessCbwEvent()
|
|
|
726 |
{
|
|
|
727 |
ReadCBW();
|
|
|
728 |
}
|
|
|
729 |
|
|
|
730 |
/**
|
|
|
731 |
Request data form the host for the protocol
|
|
|
732 |
|
|
|
733 |
@param aLength amount of data (in bytes) to be received from the host
|
|
|
734 |
*/
|
|
|
735 |
void CBulkOnlyTransportUsbcScLdd::ReadData(TUint /*aLength*/)
|
|
|
736 |
{
|
|
|
737 |
__FNLOG("CBulkOnlyTransportUsbcScLdd::ReadData");
|
|
|
738 |
if (IsActive())
|
|
|
739 |
{
|
|
|
740 |
__PRINT(_L("Still active\n"));
|
|
|
741 |
__ASSERT_DEBUG(EFalse, User::Panic(KUsbMsSvrPncCat, EMsBulkOnlyStillActive));
|
|
|
742 |
return;
|
|
|
743 |
}
|
|
|
744 |
TInt r = KErrNone;
|
|
|
745 |
do
|
|
|
746 |
{
|
|
|
747 |
r = ReadUsb();
|
|
|
748 |
iCurrentState = EReadingData;
|
|
|
749 |
if (r == KErrCompletion)
|
|
|
750 |
{
|
|
|
751 |
iReadBufPtr.Set((TUint8*) iSCReadData, iSCReadSize, iSCReadSize);
|
|
|
752 |
iStatus = KErrNone;
|
|
|
753 |
ProcessDataFromHost();
|
|
|
754 |
iSCReadSize = 0;
|
|
|
755 |
}
|
|
|
756 |
else if (r == KErrNone)
|
|
|
757 |
{
|
|
|
758 |
iSCReadSize = 0;
|
|
|
759 |
SetActive();
|
|
|
760 |
}
|
|
|
761 |
|
|
|
762 |
}while ((r == KErrCompletion) && (!IsActive()));
|
|
|
763 |
}
|
|
|
764 |
|
|
|
765 |
void CBulkOnlyTransportUsbcScLdd::ProcessDataFromHost()
|
|
|
766 |
{
|
|
|
767 |
TInt ret = KErrNone;
|
|
|
768 |
{
|
|
|
769 |
if (iReadSetUp)
|
|
|
770 |
{
|
|
|
771 |
ret = iProtocol->ReadComplete(KErrNone);
|
|
|
772 |
}
|
|
|
773 |
#ifndef MSDC_MULTITHREADED
|
|
|
774 |
ExpireData(iSCReadData);
|
|
|
775 |
#endif
|
|
|
776 |
TUint deviceDataLength = iSCReadSize; // What was written to the disk // static_cast<TUint>(iReadBuf.Length());
|
|
|
777 |
if(ret == KErrCompletion)
|
|
|
778 |
{
|
|
|
779 |
// The protocol has indicated with KErrCompletion that sufficient
|
|
|
780 |
// data is available in the buffer to process the transfer immediately.
|
|
|
781 |
|
|
|
782 |
//iDataResidue is initially set to host data length as we do not know how much data is there in the 'LDD transfer'.
|
|
|
783 |
//After a TakeBuffer call, iSCReadSize in updated and set to deviceDataLength
|
|
|
784 |
iDataResidue -= deviceDataLength;
|
|
|
785 |
}
|
|
|
786 |
else
|
|
|
787 |
{
|
|
|
788 |
iDataResidue -= deviceDataLength;
|
|
|
789 |
|
|
|
790 |
// The protocol has indicated that transfer is
|
|
|
791 |
// complete, so send the CSW response to the host.
|
|
|
792 |
iReadSetUp = EFalse;
|
|
|
793 |
|
|
|
794 |
if (ret != KErrNone)
|
|
|
795 |
{
|
|
|
796 |
iCmdStatus = ECommandFailed;
|
|
|
797 |
}
|
|
|
798 |
|
|
|
799 |
if (iDataResidue)
|
|
|
800 |
{
|
|
|
801 |
__PRINT(_L("Discarding residue"));
|
|
|
802 |
// we have to read as much data as available that host PC sends;
|
|
|
803 |
// otherwise, bulk-out endpoint will need to keep sending NAK back.
|
|
|
804 |
ReadAndDiscardData(iDataResidue);
|
|
|
805 |
}
|
|
|
806 |
|
|
|
807 |
SendCSW(iCbwTag, iDataResidue, iCmdStatus);
|
|
|
808 |
}
|
|
|
809 |
}
|
|
|
810 |
}
|
|
|
811 |
|
|
|
812 |
void CBulkOnlyTransportUsbcScLdd::WriteUsb(TRequestStatus& aStatus, TPtrC8& aDes, TUint aLength, TBool aZlpRequired)
|
|
|
813 |
{
|
|
|
814 |
TUint aOffset = (TUint) aDes.Ptr() - (TUint) iChunk->Base();
|
|
|
815 |
iSCWriteEndpointBuf.WriteBuffer(aOffset, aLength, aZlpRequired, aStatus);
|
|
|
816 |
}
|
|
|
817 |
|
|
|
818 |
void CBulkOnlyTransportUsbcScLdd::SetCbwPtr()
|
|
|
819 |
{
|
|
|
820 |
iCbwBufPtr.Set((TUint8*)iSCReadData, iSCReadSize);
|
|
|
821 |
}
|
|
|
822 |
|
|
|
823 |
TPtr8& CBulkOnlyTransportUsbcScLdd::SetCommandBufPtr(TUint aLength)
|
|
|
824 |
{
|
|
|
825 |
TPtr8 writeBuf((TUint8*) iDataPtr, aLength);
|
|
|
826 |
iCommandBufPtr.Set(writeBuf);
|
|
|
827 |
return iCommandBufPtr;
|
|
|
828 |
}
|
|
|
829 |
|
|
|
830 |
void CBulkOnlyTransportUsbcScLdd::SetReadDataBufPtr(TUint /*aLength*/)
|
|
|
831 |
{
|
|
|
832 |
// Do nothing for now
|
|
|
833 |
}
|
|
|
834 |
|
|
|
835 |
TPtr8& CBulkOnlyTransportUsbcScLdd::SetDataBufPtr()
|
|
|
836 |
{
|
|
|
837 |
TPtr8 writeBuf((TUint8*) iDataPtr, iInBufferLength);
|
|
|
838 |
iDataBufPtr.Set(writeBuf);
|
|
|
839 |
return iDataBufPtr;
|
|
|
840 |
}
|
|
|
841 |
|
|
|
842 |
void CBulkOnlyTransportUsbcScLdd::SetPaddingBufPtr(TUint aLength)
|
|
|
843 |
{
|
|
|
844 |
TPtr8 writeBuf((TUint8*) iDataPtr, aLength, aLength);
|
|
|
845 |
iPaddingBufPtr.Set(writeBuf);
|
|
|
846 |
}
|
|
|
847 |
|
|
|
848 |
void CBulkOnlyTransportUsbcScLdd::SetCswBufPtr(TUint aLength)
|
|
|
849 |
{
|
|
|
850 |
TPtr8 writeBuf((TUint8*) iDataPtr, aLength, aLength);
|
|
|
851 |
iCswBufPtr.Set(writeBuf);
|
|
|
852 |
}
|
|
|
853 |
|
|
|
854 |
void CBulkOnlyTransportUsbcScLdd::ProcessReadingDataEvent()
|
|
|
855 |
{
|
|
|
856 |
ReadData();
|
|
|
857 |
}
|
|
|
858 |
|
|
|
859 |
TInt CBulkOnlyTransportUsbcScLdd::ReadUsb(TUint /*aLength*/)
|
|
|
860 |
{
|
|
|
861 |
__FNLOG("CBulkOnlyTransportUsbcScLdd::ReadUSB");
|
|
|
862 |
return iSCReadEndpointBuf.TakeBuffer(iSCReadData,iSCReadSize,iReadZlp,iStatus);
|
|
|
863 |
}
|
|
|
864 |
|
|
|
865 |
void CBulkOnlyTransportUsbcScLdd::DiscardData(TUint aLength)
|
|
|
866 |
{
|
|
|
867 |
TUint c = 0;
|
|
|
868 |
TRequestStatus status;
|
|
|
869 |
TInt r = KErrNone;
|
|
|
870 |
while (c < aLength)
|
|
|
871 |
{
|
|
|
872 |
iSCReadSize = 0;
|
|
|
873 |
status = KErrNone;
|
|
|
874 |
r = iSCReadEndpointBuf.TakeBuffer(iSCReadData,iSCReadSize,iReadZlp,status);
|
|
|
875 |
c += iSCReadSize;
|
|
|
876 |
if (r == KErrNone)
|
|
|
877 |
User::WaitForRequest(status);
|
|
|
878 |
if (r == KErrCompletion)
|
|
|
879 |
{
|
|
|
880 |
iSCReadEndpointBuf.Expire();
|
|
|
881 |
}
|
|
|
882 |
iSCReadSize = 0;
|
|
|
883 |
}
|
|
|
884 |
}
|
|
|
885 |
|
|
|
886 |
void CBulkOnlyTransportUsbcScLdd::WriteToClient(TUint aLength)
|
|
|
887 |
{
|
|
|
888 |
TUint c = 0;
|
|
|
889 |
TRequestStatus status;
|
|
|
890 |
TInt r = KErrNone;
|
|
|
891 |
while (c < aLength)
|
|
|
892 |
{
|
|
|
893 |
iSCReadSize = 0;
|
|
|
894 |
status = KErrNone;
|
|
|
895 |
r = iSCReadEndpointBuf.TakeBuffer(iSCReadData,iSCReadSize,iReadZlp,status);
|
|
|
896 |
c += iSCReadSize;
|
|
|
897 |
iProtocol->ReadComplete(KErrGeneral);
|
|
|
898 |
if (r == KErrNone)
|
|
|
899 |
User::WaitForRequest(status);
|
|
|
900 |
if (r == KErrCompletion)
|
|
|
901 |
{
|
|
|
902 |
iSCReadEndpointBuf.Expire();
|
|
|
903 |
}
|
|
|
904 |
iSCReadSize = 0;
|
|
|
905 |
}
|
|
|
906 |
}
|
|
|
907 |
|
|
|
908 |
#ifdef MSDC_MULTITHREADED
|
|
|
909 |
void CBulkOnlyTransportUsbcScLdd::GetBufferPointers(TPtr8& aDes1, TPtr8& aDes2)
|
|
|
910 |
{
|
|
|
911 |
//for DB
|
|
|
912 |
TUint length = (TUint) (iInBufferLength - KCswBufferSize) / 2;
|
|
|
913 |
|
|
|
914 |
TUint8* start = (TUint8*) (iDataPtr) + KCswBufferSize ; // 'first' buffer
|
|
|
915 |
aDes1.Set(start, length, length);
|
|
|
916 |
|
|
|
917 |
start = (TUint8*) (iDataPtr) + KCswBufferSize + length; // 'second' buffer
|
|
|
918 |
aDes2.Set(start, length, length);
|
|
|
919 |
}
|
|
|
920 |
#endif
|
|
|
921 |
|
|
|
922 |
void CBulkOnlyTransportUsbcScLdd::Activate(TRequestStatus& aStatus, TUint& aDeviceState)
|
|
|
923 |
{
|
|
|
924 |
iLdd.AlternateDeviceStatusNotify(aStatus, aDeviceState);
|
|
|
925 |
}
|
|
|
926 |
|
|
|
927 |
|
|
|
928 |
void CBulkOnlyTransportUsbcScLdd::Cancel()
|
|
|
929 |
{
|
|
|
930 |
iLdd.AlternateDeviceStatusNotifyCancel();
|
|
|
931 |
}
|
|
|
932 |
|
|
|
933 |
|
|
|
934 |
|
|
|
935 |
|