--- a/wlan_bearer/wlanldd/wlan_symbian/wlanldd_symbian/src/DataFrameMemMngr.cpp Thu Aug 19 11:40:48 2010 +0300
+++ b/wlan_bearer/wlanldd/wlan_symbian/wlanldd_symbian/src/DataFrameMemMngr.cpp Tue Aug 31 17:02:06 2010 +0300
@@ -16,7 +16,7 @@
*/
/*
-* %version: 18 %
+* %version: 19 %
*/
#include "WlLddWlanLddConfig.h"
@@ -120,23 +120,23 @@
TraceDump(MEMORY, (("WLANLDD: new WlanChunk: 0x%08x"),
reinterpret_cast<TUint32>(iTxFrameMemoryPool)));
- iFrameXferBlock = reinterpret_cast<RFrameXferBlock*>(
- start_of_mem
- + KRxDataChunkSize
- + sizeof( TDataBuffer )
- + KMgmtSideTxBufferLength
- + KProtocolStackSideTxDataChunkSize
- + sizeof( RFrameXferBlock ) );
-
iFrameXferBlockProtoStack =
- static_cast<RFrameXferBlockProtocolStack*>(iFrameXferBlock);
+ reinterpret_cast<RFrameXferBlockProtocolStack*>(
+ start_of_mem
+ + KRxDataChunkSize
+ + sizeof( TDataBuffer )
+ + KMgmtSideTxBufferLength
+ + KProtocolStackSideTxDataChunkSize
+ + sizeof( RFrameXferBlock ) );
+
+ iFrameXferBlockBase = iFrameXferBlockProtoStack;
TraceDump( INIT_LEVEL,
(("WLANLDD: DataFrameMemMngr::DoOpenHandle: Nif RFrameXferBlock addr: 0x%08x"),
reinterpret_cast<TUint32>(iFrameXferBlockProtoStack) ) );
// initiliase xfer block
- iFrameXferBlockProtoStack->Initialise();
+ iFrameXferBlockProtoStack->Initialize();
iRxBufAlignmentPadding = iParent.RxBufAlignmentPadding();
@@ -175,197 +175,103 @@
//
// ---------------------------------------------------------------------------
//
-void DataFrameMemMngr::DoFreeRxBuffers()
- {
- for ( TUint i = 0; i < iCountCompleted; ++i )
- {
- TDataBuffer* metaHdr ( reinterpret_cast<TDataBuffer*>(
- iRxDataChunk + iCompletedBuffers[i]) );
-
- // first free the actual Rx frame buffer if relevant
- if ( metaHdr->KeFlags() & TDataBuffer::KDontReleaseBuffer )
- {
- // this buffer shall not be freed yet, so no action here
-
- TraceDump( RX_FRAME,
- (("WLANLDD: DataFrameMemMngr::DoFreeRxBuffers: don't free yet Rx buf at addr: 0x%08x"),
- reinterpret_cast<TUint32>(metaHdr->KeGetBufferStart()) ) );
- }
- else
- {
- TraceDump( RX_FRAME,
- (("WLANLDD: DataFrameMemMngr::DoFreeRxBuffers: free Rx buf at addr: 0x%08x"),
- reinterpret_cast<TUint32>(metaHdr->KeGetBufferStart()) ) );
-
- iRxFrameMemoryPool->Free(
- metaHdr->KeGetBufferStart()
- // take into account the alignment padding
- - iRxBufAlignmentPadding );
- }
-
- // free the Rx frame meta header
-
- TraceDump( RX_FRAME,
- (("WLANLDD: DataFrameMemMngr::DoFreeRxBuffers: free Rx meta header at addr: 0x%08x"),
- reinterpret_cast<TUint32>(metaHdr)) );
-
- iRxFrameMemoryPool->Free( metaHdr );
- }
- }
-
-// ---------------------------------------------------------------------------
-//
-// ---------------------------------------------------------------------------
-//
TBool DataFrameMemMngr::DoEthernetFrameRxComplete(
- const TDataBuffer*& aBufferStart,
+ TDataBuffer*& aBufferStart,
TUint32 aNumOfBuffers )
{
TraceDump( RX_FRAME,
- (("WLANLDD: DataFrameMemMngr::DoEthernetFrameRxComplete: aNumOfBuffers: %d"),
+ (("WLANLDD: DataFrameMemMngr::DoEthernetFrameRxComplete: "
+ "aNumOfBuffers: %d"),
aNumOfBuffers) );
- if ( aNumOfBuffers + iCountTobeCompleted > KMaxToBeCompletedRxBufs )
- {
- // too little space reserved for Rx buffer handles
- os_assert( (TUint8*)("WLANLDD: panic"), (TUint8*)(WLAN_FILE), __LINE__ );
- }
-
TBool ret( EFalse );
-
- if ( iReadStatus == EPending )
- {
- // read pending
- if ( !iCountTobeCompleted )
- {
- // no existing Rx buffers to complete in queue
- // we may complete these ones on the fly
-
- // note the completed Rx buffers first so that we can change
- // their addresses to offsets
- assign(
- reinterpret_cast<TUint32*>(&aBufferStart),
- iCompletedBuffers,
- aNumOfBuffers );
-
- // update the new Rx buffer start addresses added above to be
- // offsets from the Rx memory pool beginning
- for( TUint i = 0; i < aNumOfBuffers; ++i )
- {
- TraceDump( RX_FRAME,
- (("WLANLDD: DataFrameMemMngr::DoEthernetFrameRxComplete: supplied Rx buf addr: 0x%08x"),
- iCompletedBuffers[i]) );
-
- iCompletedBuffers[i]
- -= reinterpret_cast<TUint32>(iRxDataChunk);
-
- TraceDump( RX_FRAME,
- (("WLANLDD: DataFrameMemMngr::DoEthernetFrameRxComplete: Rx buf offset addr: 0x%08x"),
- iCompletedBuffers[i]) );
- }
-
- iCountCompleted = aNumOfBuffers;
-
- iFrameXferBlock->KeRxComplete( iCompletedBuffers, iCountCompleted);
- }
- else
- {
- // existing rx buffers to complete in queue.
- // We must append these at the rear and after that
- // complete the existing read request
- assign(
- reinterpret_cast<TUint32*>(&aBufferStart),
- iTobeCompletedBuffers + iCountTobeCompleted,
- aNumOfBuffers );
+ TDataBuffer** metaHdrPtrArray(&aBufferStart);
- // update the new Rx buffer start addresses added above to be
- // offsets from the Rx memory pool beginning
- for( TUint i = 0; i < aNumOfBuffers; ++i )
+ if ( iFrameXferBlockProtoStack )
+ {
+ for ( TUint i = 0; i < aNumOfBuffers; ++i )
+ {
+ if ( metaHdrPtrArray[i] )
{
- TraceDump( RX_FRAME,
- (("WLANLDD: DataFrameMemMngr::DoEthernetFrameRxComplete: supplied Rx buf addr: 0x%08x"),
- iTobeCompletedBuffers[iCountTobeCompleted + i]) );
-
- iTobeCompletedBuffers[iCountTobeCompleted + i]
- -= reinterpret_cast<TUint32>(iRxDataChunk);
-
- TraceDump( RX_FRAME,
- (("WLANLDD: DataFrameMemMngr::DoEthernetFrameRxComplete: Rx buf offset addr: 0x%08x"),
- iTobeCompletedBuffers[iCountTobeCompleted + i]) );
+ iFrameXferBlockProtoStack->AddRxFrame( metaHdrPtrArray[i] );
}
-
- iCountCompleted = iCountTobeCompleted + aNumOfBuffers;
-
- iFrameXferBlock->KeRxComplete(
- iTobeCompletedBuffers,
- iCountCompleted );
-
- // note the completed Rx buffers
- assign( iTobeCompletedBuffers, iCompletedBuffers, iCountCompleted );
- iCountTobeCompleted = 0;
- }
-
- ret = ETrue;
- }
- else
- {
- // no read pending
- // append at the rear
- assign(
- reinterpret_cast<TUint32*>(&aBufferStart),
- iTobeCompletedBuffers + iCountTobeCompleted,
- aNumOfBuffers );
-
- // update the new Rx buffer start addresses added above to be
- // offsets from the Rx memory pool beginning
- for( TUint i = 0; i < aNumOfBuffers; ++i )
- {
- TraceDump( RX_FRAME,
- (("WLANLDD: DataFrameMemMngr::DoEthernetFrameRxComplete: supplied Rx buf addr: 0x%08x"),
- iTobeCompletedBuffers[iCountTobeCompleted + i]) );
-
- iTobeCompletedBuffers[iCountTobeCompleted + i]
- -= reinterpret_cast<TUint32>(iRxDataChunk);
-
- TraceDump( RX_FRAME,
- (("WLANLDD: DataFrameMemMngr::DoEthernetFrameRxComplete: Rx buf offset addr: 0x%08x"),
- iTobeCompletedBuffers[iCountTobeCompleted + i]) );
}
- iCountTobeCompleted += aNumOfBuffers;
+ if ( iReadStatus == EPending )
+ {
+ ret = ETrue;
+ }
}
-
- TraceDump( RX_FRAME,
- (("WLANLDD: DataFrameMemMngr::DoEthernetFrameRxComplete: end: iCountCompleted: %d"),
- iCountCompleted) );
-
- TraceDump( RX_FRAME,
- (("WLANLDD: DataFrameMemMngr::DoEthernetFrameRxComplete: end: iCountTobeCompleted: %d"),
- iCountTobeCompleted) );
return ret;
}
// ---------------------------------------------------------------------------
-//
+//
// ---------------------------------------------------------------------------
//
-TUint32* DataFrameMemMngr::DoGetTobeCompletedBuffersStart()
+TBool DataFrameMemMngr::OnReadRequest()
{
- return iTobeCompletedBuffers;
+ TBool ret( EFalse );
+
+ if ( IsMemInUse() && iFrameXferBlockProtoStack )
+ {
+ if ( iFrameXferBlockProtoStack->RxFrameAvailable() )
+ {
+ // there are Rx frames ready for the user mode client retrieval
+ ret = ETrue;
+
+ // the frame Rx request won't be left pending as the callee will
+ // complete it
+ iReadStatus = ENotPending;
+ }
+ else
+ {
+ // there are no Rx frames ready for the user mode client retrieval
+ // the Rx request is left pending
+ iReadStatus = EPending;
+ }
+ }
+#ifndef NDEBUG
+ else
+ {
+ os_assert( (TUint8*)("WLANLDD: panic"), (TUint8*)(WLAN_FILE), __LINE__ );
+ }
+#endif
+
+ TraceDump( RX_FRAME,
+ (("WLANLDD: DataFrameMemMngr::OnReadRequest: ret (bool): %d"),
+ ret) );
+
+ return ret;
}
// ---------------------------------------------------------------------------
-//
+// Note! This method is executed in the context of the user mode client
+// thread, but in supervisor mode
// ---------------------------------------------------------------------------
//
-TUint32* DataFrameMemMngr::DoGetCompletedBuffersStart()
+TDataBuffer* DataFrameMemMngr::GetRxFrame(
+ TDataBuffer* aFrameToFreeInUserSpace )
{
- return iCompletedBuffers;
+ TDataBuffer* rxFrame( NULL );
+
+ if ( IsMemInUse() && iFrameXferBlockProtoStack )
+ {
+ if ( aFrameToFreeInUserSpace )
+ {
+ FreeRxPacket( aFrameToFreeInUserSpace );
+ }
+
+ rxFrame = iFrameXferBlockProtoStack->GetRxFrame();
+ }
+
+ return rxFrame;
}
// ---------------------------------------------------------------------------
-//
+// Note! This method is executed in the context of the user mode client
+// thread, but in supervisor mode
// ---------------------------------------------------------------------------
//
TDataBuffer* DataFrameMemMngr::AllocTxBuffer( TUint aLength )
@@ -376,7 +282,10 @@
TDataBuffer* metaHdr ( NULL );
- if ( ( !IsMemInUse() ) || ( aLength > KMaxEthernetFrameLength ) )
+ if ( ( !IsMemInUse() ) ||
+ ( !iTxFrameMemoryPool ) ||
+ ( !iFrameXferBlockProtoStack ) ||
+ ( aLength > KMaxEthernetFrameLength ) )
{
#ifndef NDEBUG
TraceDump( NWSA_TX_DETAILS,
@@ -423,17 +332,66 @@
}
// ---------------------------------------------------------------------------
+// Note! This method is executed in the context of the user mode client
+// thread, but in supervisor mode
+// ---------------------------------------------------------------------------
+//
+TBool DataFrameMemMngr::AddTxFrame(
+ TDataBuffer* aPacketInUserSpace,
+ TDataBuffer*& aPacketInKernSpace,
+ TBool aUserDataTxEnabled )
+ {
+ if ( IsMemInUse() && iFrameXferBlockProtoStack )
+ {
+ return iFrameXferBlockProtoStack->AddTxFrame(
+ aPacketInUserSpace,
+ aPacketInKernSpace,
+ aUserDataTxEnabled );
+ }
+ else
+ {
+ return EFalse;
+ }
+ }
+
+// ---------------------------------------------------------------------------
//
// ---------------------------------------------------------------------------
//
+TDataBuffer* DataFrameMemMngr::GetTxFrame(
+ const TWhaTxQueueState& aTxQueueState,
+ TBool& aMore )
+ {
+ if ( IsMemInUse() && iFrameXferBlockProtoStack )
+ {
+ return iFrameXferBlockProtoStack->GetTxFrame( aTxQueueState, aMore );
+ }
+ else
+ {
+ return NULL;
+ }
+ }
+
+// ---------------------------------------------------------------------------
+// Note! This method is executed also in the context of the user mode client
+// thread, but in supervisor mode
+// ---------------------------------------------------------------------------
+//
void DataFrameMemMngr::FreeTxPacket( TDataBuffer*& aPacket )
{
- if ( IsMemInUse() )
+ if ( aPacket )
{
- // free the actual Tx buffer
- iTxFrameMemoryPool->Free( aPacket->KeGetBufferStart() );
- // free the meta header
- iFrameXferBlockProtoStack->FreeTxPacket( aPacket );
+ if ( iTxFrameMemoryPool )
+ {
+ // free the actual Tx buffer
+ iTxFrameMemoryPool->Free( aPacket->KeGetBufferStart() );
+ }
+
+ if ( iFrameXferBlockProtoStack )
+ {
+ // free the meta header
+ iFrameXferBlockProtoStack->FreeTxPacket( aPacket );
+ }
}
}
@@ -441,6 +399,39 @@
//
// ---------------------------------------------------------------------------
//
+TBool DataFrameMemMngr::ResumeClientTx( TBool aUserDataTxEnabled ) const
+ {
+ TBool ret( EFalse );
+
+ if ( iFrameXferBlockProtoStack )
+ {
+ ret = iFrameXferBlockProtoStack->ResumeClientTx( aUserDataTxEnabled );
+ }
+
+ return ret;
+ }
+
+// ---------------------------------------------------------------------------
+// Note! This method is executed in the context of the user mode client
+// thread, but in supervisor mode
+// ---------------------------------------------------------------------------
+//
+TBool DataFrameMemMngr::AllTxQueuesEmpty() const
+ {
+ TBool ret( EFalse );
+
+ if ( iFrameXferBlockProtoStack )
+ {
+ ret = iFrameXferBlockProtoStack->AllTxQueuesEmpty();
+ }
+
+ return ret;
+ }
+
+// ---------------------------------------------------------------------------
+//
+// ---------------------------------------------------------------------------
+//
void DataFrameMemMngr::OnReleaseMemory( DThread& aThread )
{
TraceDump(INIT_LEVEL, ("WLANLDD: DataFrameMemMngr::OnReleaseMemory"));