|
0
|
1 |
// Copyright (c) 2004-2009 Nokia Corporation and/or its subsidiary(-ies).
|
|
|
2 |
// All rights reserved.
|
|
|
3 |
// This component and the accompanying materials are made available
|
|
|
4 |
// under the terms of the License "Eclipse Public License v1.0"
|
|
|
5 |
// which accompanies this distribution, and is available
|
|
|
6 |
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
|
|
|
7 |
//
|
|
|
8 |
// Initial Contributors:
|
|
|
9 |
// Nokia Corporation - initial contribution.
|
|
|
10 |
//
|
|
|
11 |
// Contributors:
|
|
|
12 |
//
|
|
|
13 |
// Description:
|
|
|
14 |
// Class implementation of CDriveManager and CMassStorageDrive.
|
|
|
15 |
//
|
|
|
16 |
//
|
|
|
17 |
|
|
|
18 |
/**
|
|
|
19 |
@file
|
|
|
20 |
@internalTechnology
|
|
|
21 |
*/
|
|
|
22 |
|
|
|
23 |
#include <f32fsys.h>
|
|
|
24 |
#include "massstoragedebug.h"
|
|
|
25 |
#include "usbmsshared.h"
|
|
|
26 |
#include "drivemanager.h"
|
|
|
27 |
|
|
|
28 |
///////////////////////////////////////////////////////////////////////////////
|
|
|
29 |
|
|
|
30 |
|
|
|
31 |
/**
|
|
|
32 |
A private structure that, when Connected, holds references to
|
|
|
33 |
the CProxyDrive and the corresponding TBusLocalDrive's Media Changed flag.
|
|
|
34 |
*/
|
|
|
35 |
struct CMassStorageDrive::CLocalDriveRef : public CBase
|
|
|
36 |
{
|
|
|
37 |
CLocalDriveRef(CProxyDrive& aProxyDrive, TBool& aMediaChanged)
|
|
|
38 |
: iProxyDrive(aProxyDrive), iMediaChanged(aMediaChanged), iDriveState(EIdle)
|
|
|
39 |
{
|
|
|
40 |
}
|
|
|
41 |
CProxyDrive& iProxyDrive;
|
|
|
42 |
TBool& iMediaChanged;
|
|
|
43 |
/**
|
|
|
44 |
The Drive Media state machine
|
|
|
45 |
*/
|
|
|
46 |
TDriveState iDriveState;
|
|
|
47 |
};
|
|
|
48 |
|
|
|
49 |
/**
|
|
|
50 |
@param aCritSec A Critical Section object shared by all drives.
|
|
|
51 |
@param aDrives Reference to the list of CMassStorageDrive objects.
|
|
|
52 |
@param aDriveMap Reference to array mapping lun to drive number for supported
|
|
|
53 |
mass storage drives.
|
|
|
54 |
@post Object is fully constructed
|
|
|
55 |
*/
|
|
|
56 |
CMassStorageDrive::CMassStorageDrive(RCriticalSection& aCritSec,
|
|
|
57 |
RDriveStateChangedPublisher& aDriveStateChangedPublisher)
|
|
|
58 |
:
|
|
|
59 |
iCritSec(aCritSec),
|
|
|
60 |
iMountState(EDisconnected),
|
|
|
61 |
iDriveStateChangedPublisher(aDriveStateChangedPublisher)
|
|
|
62 |
{
|
|
|
63 |
__FNLOG("CMassStorageDrive::CMassStorageDrive");
|
|
|
64 |
|
|
|
65 |
}
|
|
|
66 |
|
|
|
67 |
CMassStorageDrive::~CMassStorageDrive()
|
|
|
68 |
{
|
|
|
69 |
delete iLocalDrive;
|
|
|
70 |
}
|
|
|
71 |
|
|
|
72 |
/**
|
|
|
73 |
Read from the target drive unit.
|
|
|
74 |
@return KErrNone on success, otherwise system wide error code
|
|
|
75 |
*/
|
|
|
76 |
TInt CMassStorageDrive::Read(const TInt64& aPos, TInt aLength, TDes8& aBuf, TBool aWholeMedia)
|
|
|
77 |
{
|
|
|
78 |
__FNLOG("CMassStorageDrive::Read");
|
|
|
79 |
|
|
|
80 |
TInt err = KErrUnknown; // never return this
|
|
|
81 |
iCritSec.Wait();
|
|
|
82 |
|
|
|
83 |
if(iMountState != EConnected)
|
|
|
84 |
{
|
|
|
85 |
err = KErrDisconnected;
|
|
|
86 |
}
|
|
|
87 |
else
|
|
|
88 |
{
|
|
|
89 |
if(aWholeMedia)
|
|
|
90 |
{
|
|
|
91 |
err = SafeProxyDrive().Read(aPos, aLength, &aBuf, KLocalMessageHandle, 0, RLocalDrive::ELocDrvWholeMedia);
|
|
|
92 |
}
|
|
|
93 |
else
|
|
|
94 |
{
|
|
|
95 |
err = SafeProxyDrive().Read(aPos, aLength, aBuf);
|
|
|
96 |
}
|
|
|
97 |
|
|
|
98 |
if(err == KErrNone)
|
|
|
99 |
{
|
|
|
100 |
#ifndef USB_TRANSFER_PUBLISHER
|
|
|
101 |
iBytesRead += aBuf.Length();
|
|
|
102 |
__PRINT1(_L("iBytesRead=%d\n"),iBytesRead);
|
|
|
103 |
#endif
|
|
|
104 |
}
|
|
|
105 |
|
|
|
106 |
else if(err == KErrLocked)
|
|
|
107 |
{
|
|
|
108 |
SetDriveState(ELocked);
|
|
|
109 |
}
|
|
|
110 |
}
|
|
|
111 |
|
|
|
112 |
iCritSec.Signal();
|
|
|
113 |
return err;
|
|
|
114 |
}
|
|
|
115 |
|
|
|
116 |
/**
|
|
|
117 |
Write to the target drive unit.
|
|
|
118 |
@return KErrNone on success, otherwise system wide error code
|
|
|
119 |
*/
|
|
|
120 |
TInt CMassStorageDrive::Write(const TInt64& aPos, TDesC8& aBuf, TBool aWholeMedia)
|
|
|
121 |
{
|
|
|
122 |
__FNLOG("CMassStorageDrive::Write");
|
|
|
123 |
|
|
|
124 |
TInt err = KErrNone;
|
|
|
125 |
iCritSec.Wait();
|
|
|
126 |
|
|
|
127 |
if (iMountState != EConnected)
|
|
|
128 |
{
|
|
|
129 |
err = KErrDisconnected;
|
|
|
130 |
}
|
|
|
131 |
else
|
|
|
132 |
{
|
|
|
133 |
__ASSERT_DEBUG(iLocalDrive, User::Invariant());
|
|
|
134 |
TDriveState oldState = iLocalDrive->iDriveState;
|
|
|
135 |
if(oldState != EActive)
|
|
|
136 |
{
|
|
|
137 |
// SCSI hasn't called SetCritical
|
|
|
138 |
SetDriveState(EActive);
|
|
|
139 |
}
|
|
|
140 |
|
|
|
141 |
if (aWholeMedia)
|
|
|
142 |
{
|
|
|
143 |
err = SafeProxyDrive().Write(aPos, aBuf.Length(), &aBuf, KLocalMessageHandle, 0, RLocalDrive::ELocDrvWholeMedia);
|
|
|
144 |
}
|
|
|
145 |
else
|
|
|
146 |
{
|
|
|
147 |
err = SafeProxyDrive().Write(aPos,aBuf);
|
|
|
148 |
}
|
|
|
149 |
|
|
|
150 |
if (err == KErrNone)
|
|
|
151 |
{
|
|
|
152 |
#ifndef USB_TRANSFER_PUBLISHER
|
|
|
153 |
iBytesWritten += aBuf.Length();
|
|
|
154 |
#endif
|
|
|
155 |
}
|
|
|
156 |
|
|
|
157 |
if (err == KErrLocked)
|
|
|
158 |
{
|
|
|
159 |
SetDriveState(ELocked);
|
|
|
160 |
}
|
|
|
161 |
else if (oldState != EActive)
|
|
|
162 |
{
|
|
|
163 |
SetDriveState(oldState);
|
|
|
164 |
}
|
|
|
165 |
}
|
|
|
166 |
|
|
|
167 |
iCritSec.Signal();
|
|
|
168 |
return err;
|
|
|
169 |
}
|
|
|
170 |
|
|
|
171 |
/**
|
|
|
172 |
Get the capabilities of the target drive unit.
|
|
|
173 |
@return KErrNone on success, otherwise system wide error code
|
|
|
174 |
*/
|
|
|
175 |
TInt CMassStorageDrive::Caps(TLocalDriveCapsV4& aInfo)
|
|
|
176 |
{
|
|
|
177 |
__FNLOG("CMassStorageDrive::Caps");
|
|
|
178 |
|
|
|
179 |
TInt err = KErrNone;
|
|
|
180 |
iCritSec.Wait();
|
|
|
181 |
|
|
|
182 |
if(iMountState != EConnected)
|
|
|
183 |
{
|
|
|
184 |
err = KErrDisconnected;
|
|
|
185 |
}
|
|
|
186 |
else
|
|
|
187 |
{
|
|
|
188 |
// Initialise in case Caps() fails
|
|
|
189 |
aInfo.iType = ::EMediaUnknown;
|
|
|
190 |
err = DoCaps(aInfo);
|
|
|
191 |
|
|
|
192 |
__PRINTERR(_L("CheckDriveState: DoCaps err=%d\n"), err);
|
|
|
193 |
|
|
|
194 |
if(err == KErrNotReady || (err==KErrNone && aInfo.iType == ::EMediaNotPresent))
|
|
|
195 |
{
|
|
|
196 |
__PRINT(_L("CMassStorageDrive::Caps detected MediaNotPresent\n"));
|
|
|
197 |
SetDriveState(CMassStorageDrive::EMediaNotPresent);
|
|
|
198 |
}
|
|
|
199 |
}
|
|
|
200 |
|
|
|
201 |
iCritSec.Signal();
|
|
|
202 |
return err;
|
|
|
203 |
}
|
|
|
204 |
|
|
|
205 |
/**
|
|
|
206 |
Provides an interface to CProxyDrive::Caps that hides the
|
|
|
207 |
package buffer.
|
|
|
208 |
@return KErrNone on success, otherwise system wide error code
|
|
|
209 |
@param aInfo
|
|
|
210 |
*/
|
|
|
211 |
TInt CMassStorageDrive::DoCaps(TLocalDriveCapsV4& aInfo)
|
|
|
212 |
{
|
|
|
213 |
__FNLOG("CMassStorageDrive::DoCaps");
|
|
|
214 |
|
|
|
215 |
TLocalDriveCapsV4Buf buf;
|
|
|
216 |
buf.FillZ();
|
|
|
217 |
CProxyDrive& pd = SafeProxyDrive();
|
|
|
218 |
|
|
|
219 |
__PRINT(_L("CMassStorageDrive::DoCaps calling Caps\n"));
|
|
|
220 |
TInt err = pd.Caps(buf);
|
|
|
221 |
|
|
|
222 |
__PRINT1(_L("CMassStorageDrive::DoCaps: Caps returned %d\n"), err);
|
|
|
223 |
|
|
|
224 |
if(err==KErrNone)
|
|
|
225 |
{
|
|
|
226 |
// Invoke function call operator to cast to TLocalDriveCapsV4&
|
|
|
227 |
aInfo = buf();
|
|
|
228 |
}
|
|
|
229 |
|
|
|
230 |
return err;
|
|
|
231 |
}
|
|
|
232 |
|
|
|
233 |
/**
|
|
|
234 |
Publish media error, user should reinsert the memory card.
|
|
|
235 |
Similar to FAT32's TDriver::HandleCriticalError.
|
|
|
236 |
Note: User notification is not implemented, instead we abort and dismount.
|
|
|
237 |
*/
|
|
|
238 |
TInt CMassStorageDrive::HandleCriticalError()
|
|
|
239 |
{
|
|
|
240 |
__FNLOG("CMassStorageDrive::HandleCriticalError");
|
|
|
241 |
iDriveMediaErrorPublisher.PublishError(ETrue);
|
|
|
242 |
return KErrAbort;
|
|
|
243 |
}
|
|
|
244 |
|
|
|
245 |
|
|
|
246 |
TInt CMassStorageDrive::ClearCriticalError()
|
|
|
247 |
{
|
|
|
248 |
iDriveMediaErrorPublisher.PublishError(EFalse);
|
|
|
249 |
return KErrNone;
|
|
|
250 |
}
|
|
|
251 |
|
|
|
252 |
|
|
|
253 |
/**
|
|
|
254 |
Checks the Media Changed flag, and optionally resets it.
|
|
|
255 |
@return The state of the Media Changed flag.
|
|
|
256 |
@param aReset If true, the Media Changed flag is reset to EFalse.
|
|
|
257 |
*/
|
|
|
258 |
TBool CMassStorageDrive::IsMediaChanged(TBool aReset)
|
|
|
259 |
{
|
|
|
260 |
__FNLOG("CMassStorageDrive::IsMediaChanged");
|
|
|
261 |
|
|
|
262 |
iCritSec.Wait();
|
|
|
263 |
|
|
|
264 |
TBool mediaChanged = EFalse;
|
|
|
265 |
if(iLocalDrive)
|
|
|
266 |
{
|
|
|
267 |
mediaChanged = iLocalDrive->iMediaChanged;
|
|
|
268 |
if(aReset)
|
|
|
269 |
{
|
|
|
270 |
iLocalDrive->iMediaChanged = EFalse;
|
|
|
271 |
}
|
|
|
272 |
}
|
|
|
273 |
else
|
|
|
274 |
{
|
|
|
275 |
__PRINT(_L("CMassStorageDrive::IsMediaChanged: no drive\n"));
|
|
|
276 |
}
|
|
|
277 |
|
|
|
278 |
iCritSec.Signal();
|
|
|
279 |
|
|
|
280 |
__PRINT1(_L("CMassStorageDrive::IsMediaChanged: returning %d\n"), mediaChanged);
|
|
|
281 |
return mediaChanged;
|
|
|
282 |
}
|
|
|
283 |
|
|
|
284 |
/**
|
|
|
285 |
Set the Drive State to Active or Idle.
|
|
|
286 |
@return KErrNone on success, KErrNotReady if media not present, KErrDisMounted if not mounted
|
|
|
287 |
@param aCritical ETrue for Active, EFalse for Idle
|
|
|
288 |
*/
|
|
|
289 |
TInt CMassStorageDrive::SetCritical(TBool aCritical)
|
|
|
290 |
{
|
|
|
291 |
__FNLOG("CMassStorageDrive::SetCritical");
|
|
|
292 |
|
|
|
293 |
TInt err = KErrDisMounted;
|
|
|
294 |
|
|
|
295 |
iCritSec.Wait();
|
|
|
296 |
|
|
|
297 |
if(iLocalDrive)
|
|
|
298 |
{
|
|
|
299 |
if(iLocalDrive->iDriveState == CMassStorageDrive::EMediaNotPresent)
|
|
|
300 |
{
|
|
|
301 |
err = KErrNotReady;
|
|
|
302 |
}
|
|
|
303 |
else
|
|
|
304 |
{
|
|
|
305 |
SetDriveState(
|
|
|
306 |
aCritical
|
|
|
307 |
? CMassStorageDrive::EActive
|
|
|
308 |
: CMassStorageDrive::EIdle );
|
|
|
309 |
|
|
|
310 |
err = KErrNone;
|
|
|
311 |
}
|
|
|
312 |
}
|
|
|
313 |
|
|
|
314 |
iCritSec.Signal();
|
|
|
315 |
|
|
|
316 |
return err;
|
|
|
317 |
}
|
|
|
318 |
|
|
|
319 |
/**
|
|
|
320 |
Set the mount state
|
|
|
321 |
*/
|
|
|
322 |
TInt CMassStorageDrive::SetMountConnected(CProxyDrive& aProxyDrive, TBool& aMediaChanged)
|
|
|
323 |
{
|
|
|
324 |
__FNLOG("CMassStorageDrive::SetMountConnected");
|
|
|
325 |
CLocalDriveRef* localDrive = NULL;
|
|
|
326 |
|
|
|
327 |
__PRINT(_L("SetMountConnected entering critical section\n"));
|
|
|
328 |
iCritSec.Wait(); // note: signalled in SetMountState
|
|
|
329 |
|
|
|
330 |
if (iLocalDrive == NULL)
|
|
|
331 |
{
|
|
|
332 |
localDrive = new CLocalDriveRef(aProxyDrive, aMediaChanged);
|
|
|
333 |
if (localDrive==NULL)
|
|
|
334 |
{
|
|
|
335 |
iCritSec.Signal();
|
|
|
336 |
return KErrNoMemory;
|
|
|
337 |
}
|
|
|
338 |
}
|
|
|
339 |
|
|
|
340 |
return SetMountState(EConnected, localDrive);
|
|
|
341 |
}
|
|
|
342 |
|
|
|
343 |
/**
|
|
|
344 |
@return KErrNone
|
|
|
345 |
@param aNewState
|
|
|
346 |
@param aLocalDrive Only provide this if aNewState is EConnected.
|
|
|
347 |
*/
|
|
|
348 |
TInt CMassStorageDrive::SetMountState(TMountState aNewState, CLocalDriveRef* aLocalDrive/*=NULL*/)
|
|
|
349 |
{
|
|
|
350 |
__FNLOG("CMassStorageDrive::SetMountState");
|
|
|
351 |
|
|
|
352 |
if(iMountState == aNewState)
|
|
|
353 |
{
|
|
|
354 |
__PRINT(_L("SetMountState: No change\n"));
|
|
|
355 |
}
|
|
|
356 |
else
|
|
|
357 |
{
|
|
|
358 |
// If called from SetMountConnected, already in critical section,
|
|
|
359 |
// otherwise, must enter it here.
|
|
|
360 |
if(EConnected!=aNewState)
|
|
|
361 |
{
|
|
|
362 |
__PRINT(_L("SetMountState entering critical section\n"));
|
|
|
363 |
iCritSec.Wait();
|
|
|
364 |
}
|
|
|
365 |
|
|
|
366 |
switch(aNewState)
|
|
|
367 |
{
|
|
|
368 |
case EConnected:
|
|
|
369 |
if(aLocalDrive)
|
|
|
370 |
{
|
|
|
371 |
__ASSERT_DEBUG(!iLocalDrive, User::Invariant());
|
|
|
372 |
iLocalDrive = aLocalDrive;
|
|
|
373 |
}
|
|
|
374 |
__ASSERT_DEBUG(iLocalDrive, User::Invariant());
|
|
|
375 |
break;
|
|
|
376 |
|
|
|
377 |
case EDisconnected:
|
|
|
378 |
delete iLocalDrive;
|
|
|
379 |
iLocalDrive = NULL;
|
|
|
380 |
#ifndef USB_TRANSFER_PUBLISHER
|
|
|
381 |
iBytesWritten = iBytesRead = 0;
|
|
|
382 |
#endif
|
|
|
383 |
break;
|
|
|
384 |
|
|
|
385 |
case EDisconnecting:
|
|
|
386 |
case EConnecting:
|
|
|
387 |
// Do not change iLocalDrive for these state changes
|
|
|
388 |
break;
|
|
|
389 |
}
|
|
|
390 |
|
|
|
391 |
iMountState = aNewState;
|
|
|
392 |
__PRINT1(_L("SetMountState: state=%d\n"), iMountState);
|
|
|
393 |
|
|
|
394 |
iDriveStateChangedPublisher.DriveStateChanged();
|
|
|
395 |
|
|
|
396 |
iCritSec.Signal();
|
|
|
397 |
__PRINT(_L("SetMountState has left the critical section\n"));
|
|
|
398 |
}
|
|
|
399 |
|
|
|
400 |
return KErrNone;
|
|
|
401 |
}
|
|
|
402 |
|
|
|
403 |
/**
|
|
|
404 |
@return Current drive media state
|
|
|
405 |
*/
|
|
|
406 |
CMassStorageDrive::TDriveState CMassStorageDrive::DriveState() const
|
|
|
407 |
{
|
|
|
408 |
return iLocalDrive ? iLocalDrive->iDriveState : EErrDisMounted;
|
|
|
409 |
}
|
|
|
410 |
|
|
|
411 |
/**
|
|
|
412 |
Check for media not present, and return the drive state.
|
|
|
413 |
@return Current drive media state
|
|
|
414 |
*/
|
|
|
415 |
CMassStorageDrive::TDriveState CMassStorageDrive::CheckDriveState()
|
|
|
416 |
{
|
|
|
417 |
__FNLOG("CMassStorageDrive::CheckDriveState");
|
|
|
418 |
|
|
|
419 |
CMassStorageDrive::TDriveState state = EErrDisMounted;
|
|
|
420 |
|
|
|
421 |
iCritSec.Wait();
|
|
|
422 |
|
|
|
423 |
if (iLocalDrive)
|
|
|
424 |
{
|
|
|
425 |
TInt err = KErrGeneral;
|
|
|
426 |
TLocalDriveCapsV4 caps;
|
|
|
427 |
|
|
|
428 |
FOREVER
|
|
|
429 |
{
|
|
|
430 |
// Initialise in case Caps() fails
|
|
|
431 |
caps.iType = ::EMediaNotPresent;
|
|
|
432 |
|
|
|
433 |
err = DoCaps(caps);
|
|
|
434 |
__PRINTERR(_L("CheckDriveState: DoCaps err=%d\n"), err);
|
|
|
435 |
if (err == KErrNotReady || (err == KErrNone && caps.iType == ::EMediaNotPresent))
|
|
|
436 |
{
|
|
|
437 |
__PRINT(_L("CheckDriveState: detected MediaNotPresent\n"));
|
|
|
438 |
|
|
|
439 |
SetDriveState(CMassStorageDrive::EMediaNotPresent);
|
|
|
440 |
|
|
|
441 |
if (HandleCriticalError() == KErrAbort)
|
|
|
442 |
break;
|
|
|
443 |
}
|
|
|
444 |
else
|
|
|
445 |
{
|
|
|
446 |
ClearCriticalError();
|
|
|
447 |
break;
|
|
|
448 |
}
|
|
|
449 |
}
|
|
|
450 |
|
|
|
451 |
if (err == KErrNone && caps.iType != ::EMediaNotPresent)
|
|
|
452 |
{
|
|
|
453 |
if (iLocalDrive->iDriveState == CMassStorageDrive::EMediaNotPresent)
|
|
|
454 |
{
|
|
|
455 |
__PRINT(_L("CheckDriveState: detected media inserted\n"));
|
|
|
456 |
SetDriveState(CMassStorageDrive::EIdle);
|
|
|
457 |
}
|
|
|
458 |
else if (iLocalDrive->iDriveState == CMassStorageDrive::ELocked &&
|
|
|
459 |
!(caps.iMediaAtt & KMediaAttLocked))
|
|
|
460 |
{
|
|
|
461 |
__PRINT(_L("CheckDriveState: detected media unlocked\n"));
|
|
|
462 |
SetDriveState(CMassStorageDrive::EIdle);
|
|
|
463 |
}
|
|
|
464 |
else if (caps.iMediaAtt & KMediaAttLocked)
|
|
|
465 |
{
|
|
|
466 |
__PRINT(_L("CheckDriveState: detected media locked\n"));
|
|
|
467 |
SetDriveState(CMassStorageDrive::ELocked);
|
|
|
468 |
}
|
|
|
469 |
|
|
|
470 |
iWholeMediaAccess = !(caps.iDriveAtt & KDriveAttLogicallyRemovable);
|
|
|
471 |
}
|
|
|
472 |
|
|
|
473 |
// Get the current state
|
|
|
474 |
state = iLocalDrive->iDriveState;
|
|
|
475 |
}
|
|
|
476 |
|
|
|
477 |
iCritSec.Signal();
|
|
|
478 |
|
|
|
479 |
return state;
|
|
|
480 |
}
|
|
|
481 |
|
|
|
482 |
static TBool IsActive(CMassStorageDrive::TDriveState aDriveState)
|
|
|
483 |
{
|
|
|
484 |
return aDriveState==CMassStorageDrive::EActive;
|
|
|
485 |
}
|
|
|
486 |
|
|
|
487 |
/**
|
|
|
488 |
@param aNewState
|
|
|
489 |
*/
|
|
|
490 |
void CMassStorageDrive::SetDriveState(TDriveState aNewState)
|
|
|
491 |
{
|
|
|
492 |
__FNLOG("CMassStorageDrive::SetDriveState");
|
|
|
493 |
|
|
|
494 |
__ASSERT_DEBUG(aNewState == EIdle ||
|
|
|
495 |
(iMountState == EConnected && NULL != iLocalDrive) ||
|
|
|
496 |
(iMountState == EDisconnecting && NULL != iLocalDrive),
|
|
|
497 |
User::Invariant());
|
|
|
498 |
|
|
|
499 |
if(!iLocalDrive)
|
|
|
500 |
{
|
|
|
501 |
__PRINT(_L("SetDriveState: Drive not mounted.\n"));
|
|
|
502 |
}
|
|
|
503 |
else
|
|
|
504 |
{
|
|
|
505 |
__PRINT2(_L("SetDriveState: %d->%d\n"), iLocalDrive->iDriveState, aNewState);
|
|
|
506 |
|
|
|
507 |
if(iLocalDrive->iDriveState != aNewState)
|
|
|
508 |
{
|
|
|
509 |
CMountCB* mount = SafeProxyDrive().Mount();
|
|
|
510 |
#if !defined(USBMSDRIVE_TEST)
|
|
|
511 |
__ASSERT_DEBUG(mount != NULL, User::Invariant());
|
|
|
512 |
#endif
|
|
|
513 |
if(mount)
|
|
|
514 |
{
|
|
|
515 |
if(!IsActive(iLocalDrive->iDriveState) && IsActive(aNewState))
|
|
|
516 |
{
|
|
|
517 |
mount->IncLock();
|
|
|
518 |
}
|
|
|
519 |
else if(IsActive(iLocalDrive->iDriveState) && !IsActive(aNewState))
|
|
|
520 |
{
|
|
|
521 |
mount->DecLock();
|
|
|
522 |
}
|
|
|
523 |
__PRINT1(_L("SetDriveState: LockStatus=%d\n"), mount->LockStatus());
|
|
|
524 |
}
|
|
|
525 |
|
|
|
526 |
iLocalDrive->iDriveState = aNewState;
|
|
|
527 |
|
|
|
528 |
iDriveStateChangedPublisher.DriveStateChanged();
|
|
|
529 |
}
|
|
|
530 |
}
|
|
|
531 |
}
|
|
|
532 |
|
|
|
533 |
/**
|
|
|
534 |
Accessor for iProxyDrive; asserts if NULL
|
|
|
535 |
*/
|
|
|
536 |
CProxyDrive& CMassStorageDrive::SafeProxyDrive() const
|
|
|
537 |
{
|
|
|
538 |
__ASSERT_ALWAYS(NULL!=iLocalDrive, User::Invariant());
|
|
|
539 |
return iLocalDrive->iProxyDrive;
|
|
|
540 |
}
|
|
|
541 |
|
|
|
542 |
/////////////////////////////////////////////////////////////////
|
|
|
543 |
|
|
|
544 |
/**
|
|
|
545 |
Construct a CDriveManager object.
|
|
|
546 |
@param aDriveMap Reference to array mapping lun to drive number for supported
|
|
|
547 |
mass storage drives.
|
|
|
548 |
*/
|
|
|
549 |
CDriveManager* CDriveManager::NewL(TRefDriveMap aDriveMap)
|
|
|
550 |
{
|
|
|
551 |
__FNLOG("CDriveManager::NewL");
|
|
|
552 |
__PRINT1(_L("CDriveManager::NewL - %d drives\n"), aDriveMap.Count());
|
|
|
553 |
|
|
|
554 |
CDriveManager* self = new (ELeave) CDriveManager(aDriveMap);
|
|
|
555 |
CleanupStack::PushL(self);
|
|
|
556 |
self->ConstructL();
|
|
|
557 |
CleanupStack::Pop();
|
|
|
558 |
return self;
|
|
|
559 |
}
|
|
|
560 |
|
|
|
561 |
CDriveManager::CDriveManager(const RArray<TInt>& aDriveMap)
|
|
|
562 |
: iDriveMap(aDriveMap)
|
|
|
563 |
{}
|
|
|
564 |
|
|
|
565 |
/**
|
|
|
566 |
Construct a CDriveManager object.
|
|
|
567 |
*/
|
|
|
568 |
void CDriveManager::ConstructL()
|
|
|
569 |
{
|
|
|
570 |
__FNLOG("CDriveManager::ConstructL");
|
|
|
571 |
|
|
|
572 |
User::LeaveIfError(iDriveCritSec.CreateLocal());
|
|
|
573 |
|
|
|
574 |
iDriveStateChangedPublisher = new (ELeave) RDriveStateChangedPublisher(iDrives, iDriveMap);
|
|
|
575 |
|
|
|
576 |
for(TInt i = 0; i < iDriveMap.Count(); i++)
|
|
|
577 |
{
|
|
|
578 |
iDrives[i] = new (ELeave) CMassStorageDrive(iDriveCritSec, *iDriveStateChangedPublisher);
|
|
|
579 |
}
|
|
|
580 |
|
|
|
581 |
// Publish initial drive state
|
|
|
582 |
if (iDriveMap.Count() > 0)
|
|
|
583 |
{
|
|
|
584 |
iDriveStateChangedPublisher->DriveStateChanged();
|
|
|
585 |
}
|
|
|
586 |
}
|
|
|
587 |
|
|
|
588 |
/**
|
|
|
589 |
Destructor
|
|
|
590 |
*/
|
|
|
591 |
CDriveManager::~CDriveManager()
|
|
|
592 |
{
|
|
|
593 |
__FNLOG("CDriveManager::~CDriveManager");
|
|
|
594 |
|
|
|
595 |
iDrives.DeleteAll();
|
|
|
596 |
delete iDriveStateChangedPublisher;
|
|
|
597 |
iDriveCritSec.Close();
|
|
|
598 |
}
|
|
|
599 |
|
|
|
600 |
/**
|
|
|
601 |
Set the mount state to Connected and specify the Proxy Drive.
|
|
|
602 |
@return KErrNone on success, otherwise system wide error code
|
|
|
603 |
@param aDrive The mounted Proxy Drive
|
|
|
604 |
@param aLun The Logical Drive Unit identifier (0..numDrives-1)
|
|
|
605 |
@pre If the Mount State is Connected, then aDrive must be the
|
|
|
606 |
same as it was the last time this function was called.
|
|
|
607 |
@post The Mount State will be Connected.
|
|
|
608 |
*/
|
|
|
609 |
TInt CDriveManager::RegisterDrive(CProxyDrive& aProxyDrive, TBool& aMediaChanged, TUint aLun)
|
|
|
610 |
{
|
|
|
611 |
__FNLOG("CDriveManager::RegisterDrive");
|
|
|
612 |
__PRINT1(_L("Lun=%d \n"),aLun);
|
|
|
613 |
TInt err = KErrUnknown; // never return this
|
|
|
614 |
CMassStorageDrive* drive = CDriveManager::Drive(aLun, err);
|
|
|
615 |
if(drive)
|
|
|
616 |
{
|
|
|
617 |
drive->SetMountConnected(aProxyDrive, aMediaChanged);
|
|
|
618 |
}
|
|
|
619 |
|
|
|
620 |
__PRINT1(_L("CDriveManager::RegisterDrive err=%d\n"), err);
|
|
|
621 |
return err;
|
|
|
622 |
}
|
|
|
623 |
|
|
|
624 |
/**
|
|
|
625 |
Set the mount state to Disconnected.
|
|
|
626 |
@return KErrNone on success, otherwise system wide error code
|
|
|
627 |
@param aLun The Logical Drive Unit identifier (0..numDrives-1)
|
|
|
628 |
@post The Mount State will be Disconnected.
|
|
|
629 |
*/
|
|
|
630 |
TInt CDriveManager::DeregisterDrive(TUint aLun)
|
|
|
631 |
{
|
|
|
632 |
__FNLOG("CDriveManager::DeregisterDrive");
|
|
|
633 |
|
|
|
634 |
TInt err = KErrUnknown; // never return this
|
|
|
635 |
if(CMassStorageDrive* drive = Drive(aLun, err))
|
|
|
636 |
{
|
|
|
637 |
err = drive->SetMountDisconnected();
|
|
|
638 |
}
|
|
|
639 |
|
|
|
640 |
__PRINT1(_L("CDriveManager::DeregisterDrive err=%d\n"), err);
|
|
|
641 |
return err;
|
|
|
642 |
}
|
|
|
643 |
|
|
|
644 |
/**
|
|
|
645 |
Return a pointer to the drive specified aLun, or NULL if
|
|
|
646 |
aLun is invalid.
|
|
|
647 |
|
|
|
648 |
@return Pointer to the specified drive, or NULL.
|
|
|
649 |
@param aLun The Logical Drive Unit identifier (0..numDrives-1)
|
|
|
650 |
@param aError KErrNone on success, KErrArgument if NULL is returned.
|
|
|
651 |
*/
|
|
|
652 |
CMassStorageDrive* CDriveManager::Drive(TUint aLun, TInt& aError) const
|
|
|
653 |
{
|
|
|
654 |
aError = KErrNone;
|
|
|
655 |
CMassStorageDrive* drive = NULL;
|
|
|
656 |
|
|
|
657 |
// Check if aLun exceeds the specified number of drives
|
|
|
658 |
// (This will panic if it exceeds KMaxLun).
|
|
|
659 |
if(aLun>=KUsbMsMaxDrives || !iDrives[aLun])
|
|
|
660 |
{
|
|
|
661 |
aError = KErrArgument;
|
|
|
662 |
}
|
|
|
663 |
else
|
|
|
664 |
{
|
|
|
665 |
drive = iDrives[aLun];
|
|
|
666 |
}
|
|
|
667 |
return drive;
|
|
|
668 |
}
|
|
|
669 |
|
|
|
670 |
/**
|
|
|
671 |
Checks the Media Changed flag, and optionally resets it.
|
|
|
672 |
@return The state of the Media Changed flag.
|
|
|
673 |
@param aLun The Logical Drive Unit identifier (0..numDrives-1)
|
|
|
674 |
@param aReset If true, the Media Changed flag is reset to EFalse.
|
|
|
675 |
*/
|
|
|
676 |
TBool CDriveManager::IsMediaChanged(TUint aLun, TBool aReset)
|
|
|
677 |
{
|
|
|
678 |
__FNLOG("CDriveManager::IsMediaChanged");
|
|
|
679 |
|
|
|
680 |
TInt err; // not used, but is a required parameter
|
|
|
681 |
CMassStorageDrive* drive = Drive(aLun, err);
|
|
|
682 |
|
|
|
683 |
if(!drive)
|
|
|
684 |
{
|
|
|
685 |
__PRINT1(_L("CDriveManager::IsMediaChanged: LUN=%d not found, returning false\n"), aLun);
|
|
|
686 |
return ETrue;
|
|
|
687 |
}
|
|
|
688 |
else
|
|
|
689 |
{
|
|
|
690 |
return drive->IsMediaChanged(aReset);
|
|
|
691 |
}
|
|
|
692 |
}
|
|
|
693 |
|
|
|
694 |
/**
|
|
|
695 |
Set the Drive State to Active or Idle.
|
|
|
696 |
Ref: 3.6.3.2 - PREVENT_MEDIUM_REMOVAL
|
|
|
697 |
@return KErrNone on success, otherwise system wide error code
|
|
|
698 |
@param aLun The Logical Drive Unit identifier (0..numDrives-1)
|
|
|
699 |
@param aCritical ETrue for Active, EFalse for Idle
|
|
|
700 |
*/
|
|
|
701 |
TInt CDriveManager::SetCritical(TUint aLun, TBool aCritical)
|
|
|
702 |
{
|
|
|
703 |
__FNLOG("CDriveManager::SetCritical");
|
|
|
704 |
|
|
|
705 |
TInt err = KErrUnknown; // never return this
|
|
|
706 |
|
|
|
707 |
TInt i=aLun;
|
|
|
708 |
TInt cnt=aLun+1;
|
|
|
709 |
|
|
|
710 |
if (aLun == KAllLuns)
|
|
|
711 |
{
|
|
|
712 |
i=0;
|
|
|
713 |
cnt= iDriveMap.Count();
|
|
|
714 |
}
|
|
|
715 |
|
|
|
716 |
for(; i<cnt; i++)
|
|
|
717 |
{
|
|
|
718 |
|
|
|
719 |
CMassStorageDrive* drive = Drive(i, err);
|
|
|
720 |
if(drive)
|
|
|
721 |
{
|
|
|
722 |
err = drive->SetCritical(aCritical);
|
|
|
723 |
}
|
|
|
724 |
}
|
|
|
725 |
return err;
|
|
|
726 |
}
|
|
|
727 |
|
|
|
728 |
/**
|
|
|
729 |
Inititiate transition to Connected.
|
|
|
730 |
@return KErrNone on success, otherwise system wide error code
|
|
|
731 |
@param aLun The Logical Drive Unit identifier (0..numDrives-1)
|
|
|
732 |
@post The Mount State will be Connected or Connecting.
|
|
|
733 |
*/
|
|
|
734 |
TInt CDriveManager::Connect(TUint aLun)
|
|
|
735 |
{
|
|
|
736 |
__FNLOG("CDriveManager::Connect");
|
|
|
737 |
|
|
|
738 |
TInt err = KErrUnknown; // never return this
|
|
|
739 |
CMassStorageDrive* drive = Drive(aLun, err);
|
|
|
740 |
|
|
|
741 |
__PRINT3(_L("CDriveManager::Connect lun=%d, err=%d, mountState=%d\n"), aLun, err, drive->MountState());
|
|
|
742 |
|
|
|
743 |
if(drive)
|
|
|
744 |
{
|
|
|
745 |
switch(drive->MountState())
|
|
|
746 |
{
|
|
|
747 |
case CMassStorageDrive::EDisconnected:
|
|
|
748 |
err = drive->SetMountConnecting();
|
|
|
749 |
break;
|
|
|
750 |
case CMassStorageDrive::EDisconnecting:
|
|
|
751 |
err = drive->SetMountConnected();
|
|
|
752 |
break;
|
|
|
753 |
case CMassStorageDrive::EConnected:
|
|
|
754 |
case CMassStorageDrive::EConnecting:
|
|
|
755 |
// do nothing
|
|
|
756 |
break;
|
|
|
757 |
}
|
|
|
758 |
}
|
|
|
759 |
return err;
|
|
|
760 |
}
|
|
|
761 |
|
|
|
762 |
/**
|
|
|
763 |
Inititiate transition to Disconnected.
|
|
|
764 |
@return KErrNone on success, otherwise system wide error code
|
|
|
765 |
@param aLun The Logical Drive Unit identifier (0..numDrives-1)
|
|
|
766 |
@post The Mount State will be Disconnected or Disconnecting.
|
|
|
767 |
*/
|
|
|
768 |
TInt CDriveManager::Disconnect(TUint aLun)
|
|
|
769 |
{
|
|
|
770 |
__FNLOG("CDriveManager::Disconnect");
|
|
|
771 |
|
|
|
772 |
TInt err = KErrUnknown; // never return this
|
|
|
773 |
CMassStorageDrive* drive = Drive(aLun, err);
|
|
|
774 |
|
|
|
775 |
if(drive)
|
|
|
776 |
{
|
|
|
777 |
switch(drive->MountState())
|
|
|
778 |
{
|
|
|
779 |
case CMassStorageDrive::EConnected:
|
|
|
780 |
err = drive->SetMountDisconnecting();
|
|
|
781 |
break;
|
|
|
782 |
case CMassStorageDrive::EConnecting:
|
|
|
783 |
err = drive->SetMountDisconnected();
|
|
|
784 |
break;
|
|
|
785 |
case CMassStorageDrive::EDisconnected:
|
|
|
786 |
case CMassStorageDrive::EDisconnecting:
|
|
|
787 |
// do nothing
|
|
|
788 |
break;
|
|
|
789 |
}
|
|
|
790 |
}
|
|
|
791 |
return err;
|
|
|
792 |
}
|
|
|
793 |
|
|
|
794 |
|