218 lines
4.8 KiB
C++
218 lines
4.8 KiB
C++
//**************************************************************************
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//
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// Title : WDMBuff.cpp
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//
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// Date : 1997.12.08 1st making
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//
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// Author : Toshiba [PCS](PSY) Hideki Yagi
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//
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// Copyright 1997 Toshiba Corporation. All Rights Reserved.
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//
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// -------------------------------------------------------------------------
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//
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// Change log :
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//
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// Date Revision Description
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// ------------ ---------- -----------------------------------------------
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// 1997.12.08 000.0000 1st making.
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//
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//**************************************************************************
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#include "includes.h"
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#include "wdmbuff.h"
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#include "dvdinit.h"
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CWDMBuffer::CWDMBuffer( void )
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{
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m_pSrb = NULL;
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m_WDMBuffNext = NULL;
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#ifndef REARRANGEMENT
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m_EndFlag = TRUE; //TRUE:last buffer FALSE:non last buffer
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m_BuffNumber = 0;
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m_StartPacketNumber = 0;
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m_PacketNum = 0;
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m_BeforePacketNum = 0;
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m_Enable = FALSE;
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#endif REARRANGEMENT
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}
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CWDMBuffer::~CWDMBuffer( void )
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{
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m_pSrb = NULL;
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m_WDMBuffNext = NULL;
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#ifndef REARRANGEMENT
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//’ljÁ•ª•Ï<E280A2>”‚Ì<E2809A>‰Šú‰»
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m_EndFlag = TRUE;
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m_BuffNumber = 0;
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m_StartPacketNumber = 0;
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m_PacketNum = 0;
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m_BeforePacketNum = 0;
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m_Enable = FALSE;
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#endif REARRANGEMENT
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}
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IMBoardListItem *CWDMBuffer::GetNext( void )
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{
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return( m_WDMBuffNext );
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}
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void CWDMBuffer::SetNext( IMBoardListItem *item )
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{
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m_WDMBuffNext = item;
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}
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DWORD CWDMBuffer::GetPageNum( void )
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{
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ASSERT( m_pSrb != NULL );
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#ifndef REARRANGEMENT
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return ((DWORD) m_PacketNum);
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#else
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return( (DWORD)(m_pSrb->NumberOfPhysicalPages) ); // Is it OK??????
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#endif REARRANGEMENT
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// return( (DWORD)(m_pSrb->NumberOfBuffers) ); // Is it OK??????
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}
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DWORD CWDMBuffer::GetPageSize( DWORD pagenum )
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{
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ULONG PageSize;
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// DWORD i, j;
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// PKSSTREAM_HEADER pStruc;
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ASSERT( m_pSrb != NULL );
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#ifndef REARRANGEMENT
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ASSERT( m_PacketNum >= pagenum );
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#else
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ASSERT( m_pSrb->NumberOfPhysicalPages >= pagenum );
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#endif REARRANGEMENT
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ASSERT( pagenum != 0 );
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#ifndef REARRANGEMENT
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PageSize = m_pSrb->ScatterGatherBuffer[m_BeforePacketNum + pagenum - 1].Length;
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#else
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PageSize = m_pSrb->ScatterGatherBuffer[pagenum-1].Length;
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#endif REARRANGEMENT
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// DBG_PRINTF( ("WDMBUFF: PageSzie = 0x%0x\n\r", PageSize ) );
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/*
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j = 0;
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for( i=0; i<(m_pSrb->NumberOfBuffers); i++ ){
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pStruc = &((PKSSTREAM_HEADER)(m_pSrb->CommandData.DataBufferArray))[i];
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if( pStruc->DataUsed != 0 ){
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if( !(pStruc->OptionsFlags & KSSTREAM_HEADER_OPTIONSF_TYPECHANGED ) ){
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// DVD valid data to transfer to decoder board.
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PageSize = m_pSrb->ScatterGatherBuffer[j].Length;
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j++;
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}
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if( j>=pagenum )
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break;
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}
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}
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*/
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ASSERT( (PageSize % 2048) == 0 );
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return( (DWORD)PageSize );
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}
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BOOL CWDMBuffer::GetPagePointer( DWORD pagenum, DWORD *LinAddr, DWORD *PhysAddr )
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{
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PHYSICAL_ADDRESS pAdd;
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DWORD i, j;
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PKSSTREAM_HEADER pStruc;
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ASSERT( m_pSrb != NULL );
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#ifndef REARRANGEMENT
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ASSERT( m_PacketNum >= pagenum );
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#else
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ASSERT( m_pSrb->NumberOfPhysicalPages >= pagenum );
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#endif REARRANGEMENT
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ASSERT( pagenum != 0 );
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#ifndef REARRANGEMENT
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pAdd = m_pSrb->ScatterGatherBuffer[m_BeforePacketNum + pagenum - 1].PhysicalAddress;
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#else
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pAdd = m_pSrb->ScatterGatherBuffer[pagenum-1].PhysicalAddress;
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#endif REARRANGEMENT
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*PhysAddr = (DWORD)(pAdd.LowPart);
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*LinAddr = (DWORD)0;
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// Linear address is validate?
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j = 0;
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for( i=0; i<(m_pSrb->NumberOfBuffers); i++ ){
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pStruc = &((PKSSTREAM_HEADER)(m_pSrb->CommandData.DataBufferArray))[i];
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ASSERT( pStruc != NULL );
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if( pStruc->DataUsed != 0 ){
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if( !(pStruc->OptionsFlags & KSSTREAM_HEADER_OPTIONSF_TYPECHANGED) )
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{
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// DVD valid data to transfer to decoder board.
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*LinAddr = (DWORD)(pStruc->Data);
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j++;
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}
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if( j>=pagenum )
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break;
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}
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}
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ASSERT( j != 0 );
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ASSERT( *LinAddr != 0 );
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return( TRUE );
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}
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DWORD CWDMBuffer::GetBufferFlag( void )
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{
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return( (DWORD)0 );
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// return( (DWORD)m_pSrb->Flags );
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}
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BOOL CWDMBuffer::SetSRB( PHW_STREAM_REQUEST_BLOCK pSrb )
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{
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ASSERT( pSrb != NULL );
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if( pSrb == NULL ){
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return( FALSE );
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}
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m_pSrb = pSrb;
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return( TRUE );
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}
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PHW_STREAM_REQUEST_BLOCK CWDMBuffer::GetSRB( void )
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{
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ASSERT( m_pSrb != NULL );
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return( m_pSrb );
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}
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VOID CWDMBuffer::Init( void )
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{
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m_pSrb = NULL;
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m_WDMBuffNext = NULL;
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#ifndef REARRANGEMENT
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m_EndFlag = TRUE;
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m_BuffNumber = 0;
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m_StartPacketNumber = 0;
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m_PacketNum = 0;
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m_BeforePacketNum = 0;
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m_Enable = FALSE;
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#endif REARRANGEMENT
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}
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