ohcd.c

自制PDA系列之usb驱动（处理器PXA270）

//
// Copyright (c) Microsoft Corporation.  All rights reserved.
//
//
// Use of this source code is subject to the terms of the Microsoft end-user
// license agreement (EULA) under which you licensed this SOFTWARE PRODUCT.
// If you did not accept the terms of the EULA, you are not authorized to use
// this source code. For a copy of the EULA, please see the LICENSE.RTF on your
// install media.
//
/*++
THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
PARTICULAR PURPOSE.

Module Name:  
    ohcd.c
    
Abstract:  
    Platform dependant part of the USB Open Host Controller Driver (OHCD).

Notes: 
--*/

#include <windows.h>
#include <nkintr.h>
#include <oalintr.h>
#include <ceddk.h>

#include "bvd1bd.h"
#include "usbohci.h"



//Globle address
DWORD gcTotalAvailablePhysicalMemory= OHCI_DMA_BUFFER_SIZE; //28672; // 28K
DWORD gcHighPriorityPhysicalMemory= OHCI_DMA_BUFFER_HIGHPRI_SIZE; //0x5000; // 20K
DWORD dwSysIntrOhciMdd=SYSINTR_OHCI_MDD;
DWORD dwSysIntrOhciPdd=SYSINTR_OHCI_PDD;

//Dma Buffer
DWORD dwOhciDmaBufferPhysical=OHCI_DMA_BUFFER_PHYSICAL;
PVOID pOhciDmaBufferVirtual=(PVOID)OHCI_DMA_BUFFER_U_VIRTUAL;
DWORD dwOhciDmaBufferSize=OHCI_DMA_BUFFER_SIZE;