Symaptic: os/kernelhwsrv/userlibandfileserver/fileserver/shostmassstorage/client/rusbhostmslogicalunit.cpp@260cb5ec6c19

     1 // Copyright (c) 2008-2009 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 //

    16 /**

    17  @file

    18  @internalTechnology

    19 */

    21 #include <e32std.h>

    23 #include "msgservice.h"

    24 #include "rusbhostmsdevice.h"

    25 #include "rusbhostmslogicalunit.h"

    26 #include "debug.h"

    28 TVersion RUsbHostMsLogicalUnit::Version() const

    29 	{

    30 	return(TVersion(KUsbHostMsSrvMajorVersionNumber,

    31                     KUsbHostMsSrvMinorVersionNumber,

    32                     KUsbHostMsSrvBuildVersionNumber));

    33 	}

    35 EXPORT_C RUsbHostMsLogicalUnit::RUsbHostMsLogicalUnit()

    36 	{

    37 	// Intentionally left blank

    38 	}

    40 /**

    41 Send a command to initialise the Mass Storage device.

    43 @param aMsg

    44 @param aDevHandleIndex

    45 @param aLun

    47 @return TInt

    48 */

    49 EXPORT_C TInt RUsbHostMsLogicalUnit::Initialise(const RMessage2& aMsg,

    50                                                 TInt aDevHandleIndex,

    51 												TUint32 aLun)

    52 	{

    53 	__FNLOG("RUsbHostMsLogicalUnit::Initialise");

    54 	TInt r = dev.Open(aMsg, aDevHandleIndex);

    55 	if (r != KErrNone)

    56 		{

    57 		__PRINT1(_L("Session handle can not be opened %d"),r);

    58 		return r;

    59 		}

    61 	r = CreateSubSession(dev, EUsbHostMsRegisterLun, TIpcArgs(aLun));

    62 	if (r != KErrNone)

    63 		{

    64 		__PRINT1(_L("SubSession creation failed %d"),r);

    65 		return r;

    66 		}

    67 	return r;

    68 	}

    71 /**

    72 Send a command to read the Mass Storage device.

    74 @param aPos Position to start reading from

    75 @param aLength Number of Bytes

    76 @param aTrg Buffer to copy data to

    78 @return TInt KErrNone, if the send operation is successful;

    79 	KErrServerTerminated, if the server no longer present; KErrServerBusy, if there are no message slots available;

    80 	KErrNoMemory, if there is insufficient memory available.

    81 */

    82 EXPORT_C TInt RUsbHostMsLogicalUnit::Read(TInt64 aPos, TInt aLength, TDes8& aTrg)

    83 	{

    84 	__FNLOG("RUsbHostMsLogicalUnit::Read");

    86 	TReadWrite data;

    87 	data.iPos = aPos;

    88 	data.iLen = aLength;

    90 	__PRINT2(_L("pos = 0x%lx, len = x%x"), data.iPos, data.iLen);

    92 	TPckg<TReadWrite> pckg(data);

    93 	/* We handle the message asynchronously in the thread modelled MSC */

    94 	TRequestStatus	status;

    95 	SendReceive(EUsbHostMsRead, TIpcArgs(&pckg, &aTrg), status);

    96 	User::WaitForRequest(status);

    97     __PRINT2(_L("pos = 0x%lx, len = x%x"), data.iPos, data.iLen);

    98 	return status.Int();

    99 	}

   102 /**

   103 Send a command to write to the Mass Storage device.

   105 @param aPos Position to start reading from

   106 @param aLength Number of Bytes

   107 @param aTrg Buffer to copy data from

   109 @return TInt KErrNone, if the send operation is successful;

   110 	KErrServerTerminated, if the server no longer present; KErrServerBusy, if there are no message slots available;

   111 	KErrNoMemory, if there is insufficient memory available.

   112 available.

   113 */

   114 EXPORT_C TInt RUsbHostMsLogicalUnit::Write(TInt64 aPos, TInt aLength, const TDesC8& aTrg)

   115 	{

   116 	__FNLOG("RUsbHostMsLogicalUnit::Write");

   118 	TReadWrite data;

   119 	data.iPos = aPos;

   120 	data.iLen = aLength;

   122 	__PRINT2(_L("pos = 0x%lx, len = x%x"), data.iPos, data.iLen);

   124 	TPckg<TReadWrite> pckg(data);

   125 	/* We handle the message asynchronously in the thread modelled MSC */

   126 	TRequestStatus	status;

   127 	SendReceive(EUsbHostMsWrite, TIpcArgs(&aTrg, &pckg), status);

   128 	User::WaitForRequest(status);

   129 	return status.Int();

   130 	}

   133 /**

   134 Send a command to erase an area of the Mass Storage device.

   136 @param aPos Position to start reading from

   137 @param aLength Number of Bytes

   139 @return TInt KErrNone, if the send operation is successful;

   140 	KErrServerTerminated, if the server no longer present; KErrServerBusy, if there are no message slots available;

   141 	KErrNoMemory, if there is insufficient memory available.

   142 available.

   143 */

   144 EXPORT_C TInt RUsbHostMsLogicalUnit::Erase(TInt64 aPos, TInt aLength)

   145 	{

   146 	__FNLOG("RUsbHostMsLogicalUnit::Erase");

   148 	TReadWrite data;

   149 	data.iPos = aPos;

   150 	data.iLen = aLength;

   152 	__PRINT2(_L("pos = 0x%lx, len = x%x"), data.iPos, data.iLen);

   154 	TPckg<TReadWrite> pckg(data);

   155 	/* We handle the message asynchronously in the thread modelled MSC */

   156 	TRequestStatus	status;

   157 	SendReceive(EUsbHostMsErase, TIpcArgs(&pckg), status);

   158 	User::WaitForRequest(status);

   159 	return status.Int();

   160 	}

   163 /**

   164 Send a command to get the nedia's capacity info.

   166 @param aCapsInfo [OUT] A buffer to copy the capacity info to.

   168 @return TInt KErrNone, if the send operation is successful;

   169 KErrServerTerminated, if the server no longer present; KErrServerBusy, if there

   170 are no message slots available; KErrNoMemory, if there is insufficient memory

   171 available.

   172 */

   173 EXPORT_C TInt RUsbHostMsLogicalUnit::Caps(TCapsInfo& aCapsInfo)

   174 	{

   175 	__FNLOG("RUsbHostMsLogicalUnit::Caps");

   177     TPckg<TCapsInfo> data(aCapsInfo);

   179 	/* We handle the message asynchronously in the thread modelled MSC */

   180 	TRequestStatus	status;

   181 	SendReceive(EUsbHostMsCapacity, TIpcArgs(&data),status);

   182 	User::WaitForRequest(status);

   183 	return status.Int();

   184 	}

   186 /**

   187 Request notification of media change to the file server

   189 @param aChanged The descriptor pointing to iChanged flag in TDrive to be updated

   190 when error occurs during read or write.

   191 @param aStatus The request status This is set to KErrNone on completion, or KErrCancel when the logical unit is closed;

   192 	KErrServerTerminated, if the server no longer present; KErrServerBusy, if there are no message slots available;

   193 	KErrNoMemory, if there is insufficient memory available.

   194 @return None

   195 */

   196 EXPORT_C void RUsbHostMsLogicalUnit::NotifyChange(TDes8& aChanged, TRequestStatus &aStatus)

   197 	{

   198 	__FNLOG("RUsbHostMsLogicalUnit::NotifyChange");

   200 	SendReceive(EUsbHostMsNotifyChange, TIpcArgs(&aChanged), aStatus);

   201 	}

   203 /**

   204 Request to suspend the logical unit associated with this drive

   205 */

   206 EXPORT_C void RUsbHostMsLogicalUnit::SuspendLun()

   207 	{

   208 	__FNLOG("RUsbHostMsLogicalUnit::SuspendLun");

   210 	SendReceive(EUsbHostMsSuspendLun, TIpcArgs(NULL));

   211 	}

   213 /**

   214 Close the sub-session.

   216 @return TInt KErrNone

   217 */

   218 EXPORT_C TInt RUsbHostMsLogicalUnit::UnInitialise()

   219 	{

   220 	__FNLOG("RUsbHostMsLogicalUnit::UnInitialise");

   222 	CloseSubSession(EUsbHostMsUnRegisterLun);

   223 	dev.Close();

   224 	return KErrNone;

   225 	}

   228 /**

   229 Request that the drive is remounted.

   231 @param aFlags Flags to be passed to the drive

   233 @return EXPORT_C TInt KErrNone, if the send operation is successful;

   234 KErrServerTerminated, if the server no longer present; KErrServerBusy, if there

   235 are no message slots available; KErrNoMemory, if there is insufficient memory

   236 available.

   237 */

   238 EXPORT_C TInt RUsbHostMsLogicalUnit::ForceRemount(TUint aFlags)

   239 	{

   240 	__FNLOG("RUsbHostMsLogicalUnit::ForceRemount");

   242 	__PRINT1(_L("flags = %d"), aFlags);

   244 	TRequestStatus	status;

   245 	SendReceive(EUsbHostMsForceRemount, TIpcArgs(aFlags), status);

   246 	User::WaitForRequest(status);

   247 	return status.Int();

   248 	}

   250 EXPORT_C void RUsbHostMsLogicalUnit::NotifyChangeCancel()

   251 	{

   252 	__FNLOG("RUsbHostMsLogicalUnit::NotifyChangeCancel");

   253 	SendReceive(EUsbHostMsCancelChangeNotifier, TIpcArgs(NULL));

   254 	}

author	sl
	Tue, 10 Jun 2014 14:32:02 +0200
changeset 1	260cb5ec6c19
permissions	-rw-r--r--