atamx31.h

freescale i.mx31 BSP CE5.0全部源码

//------------------------------------------------------------------------------
//
// Copyright (C) 2006, Freescale Semiconductor, Inc. All Rights Reserved
// THIS SOURCE CODE IS CONFIDENTIAL AND PROPRIETARY AND MAY NOT
// BE USED OR DISTRIBUTED WITHOUT THE WRITTEN PERMISSION OF
// Freescale Semiconductor, Inc.
//
//------------------------------------------------------------------------------

//------------------------------------------------------------------------------
//
//  File:  ATAMX31.h
//
//  ATA MX31 device abstraction.
//
//------------------------------------------------------------------------------

#ifndef _ATAMX31_H_
#define _ATAMX31_H_

#include "csp.h"
#include <atamain.h>

#define CLOCK_PERIOD   15
#define PIO_MODE        1
#define MDMA_MODE       2
#define UDMA_MODE       3

#define USE_SDMA
#define USE_SDMA_SG_LIST

#define ATA_SDMA_BUFFER_SIZE    (MAX_SECT_PER_COMMAND_DMA*512)
#define ATA_DMA_WATERMARK       32  // ATA DMA watermark in bytes

#define ATA_MAX_SECTOR          512
#define ATA_MAX_TRANSFER        (MAX_SECT_PER_COMMAND * ATA_MAX_SECTOR)
#define ATA_MAX_DESC_COUNT      ((ATA_MAX_TRANSFER / 4096) * 2)

class CMX31Disk : public CDisk {
  public:

    // member variables
    static LONG  m_lDeviceCount;

    PCSP_ATA_REG 	g_pVAtaReg;

    BYTE    bIntrPending;
    
    // (SDMA support)
    PHYSICAL_ADDRESS 	PhysDMABufferAddr;
    PBYTE 		pVirtDMABufferAddr;
    UINT8 		DmaChanATARx, DmaChanATATx; 
    DDK_DMA_REQ		DmaReqTx ; 
    DDK_DMA_REQ		DmaReqRx ; 
    
    // constructors/destructors
    CMX31Disk(HKEY hKey);
    virtual ~CMX31Disk();

    // member functions
    virtual VOID ConfigureRegisterBlock(DWORD dwStride);
    virtual BOOL Init(HKEY hActiveKey);
    virtual DWORD MainIoctl(PIOREQ pIOReq);
    virtual BOOL WaitForInterrupt(DWORD dwTimeOut);
    virtual void EnableInterrupt();
    virtual BOOL ConfigPort();
    
    virtual BOOL SetupDMA(PSG_BUF pSgBuf, DWORD dwSgCount, BOOL fRead);
    virtual BOOL BeginDMA(BOOL fRead);
    virtual BOOL EndDMA();
    virtual BOOL AbortDMA();
    virtual BOOL CompleteDMA(PSG_BUF pSgBuf, DWORD dwSgCount, BOOL fRead);
    
    void CopyDiskInfoFromPort();
    void SetTimingRegisters(int speed, int mode, int ClkSpd);
    BOOL ConfigureIOMUXPad(int muxmode);
    BOOL InitializePort(void);
    void ShowRegisters(UCHAR usel);
    inline virtual void CMX31Disk::TakeCS() {
        m_pPort->TakeCS();
    }
    inline virtual void CMX31Disk::ReleaseCS() {
        m_pPort->ReleaseCS();
    }
    inline BOOL CMX31Disk::DoesDeviceAlreadyExist() {
        return FALSE;
    }

    // DMA support
    PSG_BUF m_pDMASgBuf;
    DWORD   m_dwAlignedSgCount;
    DWORD   m_dwAlignedDescCount;
    DWORD   m_dwAlignedSgBytes;
    UINT8   m_DMAChan;
    DWORD   dwDoubleBufferPos;
    BOOL    fSDMAIntrEnable;
    
    BOOL MapDMABuffers(void);
    BOOL UnmapDMABuffers(void);
    BOOL DeinitChannelDMA(void);
    BOOL InitChannelDMA(void);
    BOOL InitDMA(void) ;
    BOOL DeInitDMA(void); 
    DWORD MoveDMABuffer(PSG_BUF pSgBuf, DWORD dwSgIndex, DWORD dwSgCount, BOOL fRead);

#if 0
    void RunTest(void);
    void TestSDMAReadWrite(BOOL fRead, int mode, int sector, int num_sec);
    void TestDMARead(void);
#endif
	
};

EXTERN_C
CDisk *
CreateMX31HD(
    HKEY hDevKey
    );

//------------------------------------------------------------------------------
// Functions
//------------------------------------------------------------------------------

extern BOOL BSPATAEnableClock(BOOL bEnable);
extern BOOL BSPATApbcmapping(PHYSICAL_ADDRESS *phyAddr);
extern BOOL BSPATAIOMUXConfig(void);
extern UINT8 BSPATASDMAchannelprio(void);
#endif //_ATAMX31_H_