atamx31.cpp

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.cpp
//
//  Base ATA MX31 device abstraction.
//
//------------------------------------------------------------------------------

#include <windows.h>
#include <devload.h>
#include <pm.h>
#include <nkintr.h>
#include <ceddk.h>
#include <diskio.h>
#include <atapi2.h>
#include <atamx31.h>

//------------------------------------------------------------------------------
// Global Variables 

LONG CMX31Disk::m_lDeviceCount = 0;

//------------------------------------------------------------------------------
// Local Variables 

// PIO spec
int t0_spec[5]   = {600, 383, 240, 180, 120} ;
int t1_spec[5]   = {70, 50, 30, 30, 25} ;
int t2_8spec[5]  = {290, 290, 290, 80, 70} ;
int t2_16spec[5] = {165, 125, 100, 80, 70} ;
int t2i_spec[5]  = {0,0,0,0,0} ;
int t4_spec[5]   = {30, 20, 15, 10, 10} ;
int t9_spec[5]   = {20, 15, 10, 10, 10} ;
int tA_spec[5]   = {50,50,50,50,50} ;

// MDMA spec
int t0M_spec[3]  = {480, 150, 120} ;
int tD_spec[3]   = {215, 80, 70} ;
int tH_spec[3]   = {20, 15, 10} ;
int tJ_spec[3]   = {20, 5, 5} ;
int tKW_spec[3]  = {215, 50, 25} ;
int tM_spec[3]   = {50, 30, 25} ;
int tN_spec[3]   = {15, 10, 10} ;
int tJNH_spec[3] = {20, 15, 10} ;

// UDMA spec
int t2CYC_spec[6]   = {235, 156, 117, 86, 57, 38} ;
int tCYC_spec[6]    = {114, 75, 55, 39, 25, 17} ;
int tDS_spec[6]     = {15,10,7, 7, 5, 4} ;
int tDH_spec[6]     = {5,5,5,5,5,5} ;
int tDVS_spec[6]    = {70, 48, 34, 20, 7, 5} ;
int tDVH_spec[6]    = {6,6,6,6,6,6} ;
int tCVS_spec[6]    = {70,48,34,20,7,10} ;
int tCVH_spec[6]    = {6,6,6,6,6,10} ;
int tFS_minspec[6]  = {0,0,0,0,0,0} ;
int tLI_maxspec[6]  = {100,100,100,100,100,75} ;
int tMLI_spec[6]    = {20,20,20,20,20,20} ;
int tAZ_spec[6]     = {10,10,10,10,10,10} ;
int tZAH_spec[6]    = {20,20,20,20,20,20} ;
int tENV_minspec[6] = {20,20,20,20,20,20} ;
int tSR_spec[6]     = {50,30,20,20,20,20} ;
int tRFS_spec[6]    = {75, 70, 60, 60, 60, 50} ;
int tRP_spec[6]     = {160,125,100,100,100,85} ;
int tACK_spec[6]    = {20,20,20,20,20,20} ;
int tSS_spec[6]     = {50,50,50,50,50,50} ;
int tDZFS_spec[6]   = {80,63,47,35,25,40} ;

static TCHAR *g_szATAHardDisk = TEXT("Hard Disk");

void DumpBuffer(PBYTE pInBuf, USHORT uBufSize);
void DumpFIFO(PBYTE g_pATA_BASE);

//------------------------------------------------------------------------------
// Local Functions

//-----------------------------------------------------------------------------
//
//  Function:  AtaIntrServThread
//
//  This is the interrupt service thread for ATA interrupts.  
//
//  Parameters:
//      lpParam
//          [in] Thread data passed to the function using the 
//          lpParameter parameter of the CreateThread function.
//
//  Returns:
//      Returns thread exit code.
//
//-----------------------------------------------------------------------------
DWORD IntrServThread (LPVOID lpParam)
{
    DWORD rc = TRUE;
    CPort *pPort = (CPort *)lpParam;

    while(TRUE)
    {
        if(WaitForSingleObject(pPort->m_hIRQEvent, INFINITE) == WAIT_OBJECT_0)
        {
            // Signal the thread that called WaitForInterrupt to complete 
            // the interrupt servicing.
            SetEvent(pPort->m_hWaitEvent);
        }
        else 
        {
            // Abnormal signal
            rc = FALSE;
            break;
        }
    }

    return rc;
}

// ----------------------------------------------------------------------------
// Function: CreatePCIHD
//     Spawn function called by IDE/ATA controller enumerator
//
// Parameters:
//     hDevKey -
// ----------------------------------------------------------------------------

EXTERN_C
CDisk *
CreateMX31HD(
    HKEY hDevKey
    )
{
    return new CMX31Disk(hDevKey);
}

// ----------------------------------------------------------------------------
// Function: CMX31Disk
//     Constructor
//
// Parameters:
//     hKey -
// ----------------------------------------------------------------------------

CMX31Disk::CMX31Disk(
    HKEY hKey
    ) : CDisk(hKey)
{
    InterlockedIncrement(&m_lDeviceCount);

      g_pVAtaReg = NULL; 
      fSDMAIntrEnable = FALSE;
     
    DEBUGMSG(ZONE_INIT|ZONE_MX31, (_T(
        "Ata!CMX31Disk::CMX31Disk> device count(%d)\r\n"
        ), m_lDeviceCount));
}

// ----------------------------------------------------------------------------
// Function: ~CMX31Disk
//     Destructor
//
// Parameters:
//     None
// ----------------------------------------------------------------------------

CMX31Disk::~CMX31Disk(
    )
{
    DeInitDMA(); 

    InterlockedDecrement(&m_lDeviceCount);

    DEBUGMSG(ZONE_INIT|ZONE_MX31, (_T(
        "Ata!CMX31Disk::~CMX31Disk> device count(%d)\r\n"
        ), m_lDeviceCount));
}

// ----------------------------------------------------------------------------
// Function: CopyDiskInfoFromPort
//     This function is not used
//
// Parameters:
//     None
// ----------------------------------------------------------------------------

void
CMX31Disk::CopyDiskInfoFromPort(
    )
{
    ASSERT(m_pPort->m_dwRegBase != 0);
    m_pATAReg = (PBYTE)m_pPort->m_dwRegBase;
    m_pATARegAlt = (PBYTE)m_pPort->m_dwRegAlt;

    ASSERT(m_pPort->m_dwBMR != 0);
}

// ----------------------------------------------------------------------------
// Function: WaitForInterrupt
//     Wait for interrupt
//
// Parameters:
//     dwTimeOut -
// ----------------------------------------------------------------------------

BOOL
CMX31Disk::WaitForInterrupt(
    DWORD dwTimeOut
    )
{
    BYTE bStatus;
    BOOL fRet = TRUE;
    DWORD dwRet;

    DEBUGMSG(ZONE_FUNC, (TEXT("CMX31Disk: WaitForInterrupt+\r\n")));
    
    bIntrPending = 0;
next_wait:    
    // wait for interrupt
    dwRet = WaitForSingleObject(m_pPort->m_hWaitEvent, dwTimeOut);
    if (dwRet == WAIT_TIMEOUT) {
        fRet = FALSE;
    }
    else {
        if (dwRet != WAIT_OBJECT_0) {
            if (!WaitForDisc(WAIT_TYPE_DRQ, dwTimeOut, 10)) {
                fRet = FALSE;
            }
        }
    }

    bIntrPending = INREG8(&g_pVAtaReg->InterruptPending);
    if(bIntrPending & 0x08)
    {
        // read status; acknowledge interrupt
        bStatus = GetBaseStatus();
        if (bStatus & ATA_STATUS_ERROR) {
            bStatus = GetError();
            fRet = FALSE;
      DEBUGMSG(ZONE_FUNC, (TEXT("CMX31Disk: WaitForInterrupt(Error: %x)\r\n"), bStatus));
        }
    } else
    if(bIntrPending & 0x20)
    {
        OUTREG8(&g_pVAtaReg->InterruptClear, 0x20);
        while(INREG32(&g_pVAtaReg->FIFO_FILL) >= 2)
        {
            *((PDWORD)(m_rgbDoubleBuffer+dwDoubleBufferPos)) = INREG32(&g_pVAtaReg->FIFO_DATA_32[0]) ;
            dwDoubleBufferPos += 4;
        }
    }

    // signal interrupt done
    InterruptDone(m_pPort->m_dwSysIntr);
    
      if(fRet && dwTimeOut && fSDMAIntrEnable && !(bIntrPending & 0x80)) 
      {
          //fRet = FALSE;
          goto next_wait;
      }

    DEBUGMSG(ZONE_FUNC, (TEXT("CMX31Disk: WaitForInterrupt-:%d,%x\r\n"), fRet, bIntrPending));
    return fRet;
}

// ----------------------------------------------------------------------------
// Function: EnableInterrupt
//     Enable channel interrupt
//
// Parameters:
//     None
// ----------------------------------------------------------------------------

void
CMX31Disk::EnableInterrupt(
    )
{
    GetBaseStatus(); // acknowledge interrupt, if pending

    OUTREG8(&g_pVAtaReg->InterruptClear, 0xff);
    OUTREG8(&g_pVAtaReg->InterruptEnable, 0x68); //0x08);
    // signal interrupt done
    InterruptDone(m_pPort->m_dwSysIntr);
}

// ----------------------------------------------------------------------------
// Function: ConfigureRegisterBlock
//     This function is called by DSK_Init before any other CDisk function to
//     set up the register block.
//
// Parameters:
//     dwStride -
// ----------------------------------------------------------------------------

VOID
CMX31Disk::ConfigureRegisterBlock(
    DWORD dwStride
    )
{
    DEBUGMSG(ZONE_FUNC, (TEXT("CMX31Disk: ConfigureRegisterBlock+\r\n")));
    m_dwStride = dwStride;
    m_dwDataDrvCtrlOffset = ATA_REG_DATA * dwStride+ATA_DRIVE_REG_OFFSET;
    m_dwFeatureErrorOffset = ATA_REG_FEATURE * dwStride+ATA_DRIVE_REG_OFFSET;
    m_dwSectCntReasonOffset = ATA_REG_SECT_CNT * dwStride+ATA_DRIVE_REG_OFFSET;
    m_dwSectNumOffset = ATA_REG_SECT_NUM * dwStride+ATA_DRIVE_REG_OFFSET;
    m_dwDrvHeadOffset = ATA_REG_DRV_HEAD * dwStride+ATA_DRIVE_REG_OFFSET;
    m_dwCommandStatusOffset = ATA_REG_COMMAND * dwStride+ATA_DRIVE_REG_OFFSET;
    m_dwByteCountLowOffset = ATA_REG_BYTECOUNTLOW * dwStride+ATA_DRIVE_REG_OFFSET;
    m_dwByteCountHighOffset = ATA_REG_BYTECOUNTHIGH * dwStride+ATA_DRIVE_REG_OFFSET;
    m_dwAltStatusOffset = ATA_DRIVE_ALT_OFFSET; //ATA_REG_ALT_STATUS_CS1 * dwStride+atabase;
    m_dwAltDrvCtrl = ATA_DRIVE_ALT_OFFSET; //ATA_REG_DRV_CTRL_CS1 * dwStride+atabase;
    DEBUGMSG(ZONE_FUNC, (TEXT("CMX31Disk: ConfigureRegisterBlock-\r\n")));
}

// ----------------------------------------------------------------------------
// Function: Init
//     Initialize channel
//
// Parameters:
//     hActiveKey -
// ----------------------------------------------------------------------------

BOOL
CMX31Disk::Init(
    HKEY hActiveKey
    )
{
    BOOL bRet = FALSE;

    DEBUGMSG(ZONE_FUNC, (_T("CMX31Disk: Init+")));
    m_f16Bit = TRUE; // ATA is 16-bit

    // configure port
    if (!ConfigPort()) {
        DEBUGMSG(ZONE_INIT, (_T(
            "Ata!CMX31Disk::Init> Failed to configure port; device(%u)\r\n"
            ), m_dwDeviceId));
        goto exit;
    }

    // assign the appropriate folder name
    m_szDiskName = g_szATAHardDisk;

    if(!InitDMA())
    {
        DEBUGMSG(ZONE_ERROR, (TEXT("MMCSD_DMAInit: cannot init DMA!\r\n")));
        goto exit;
    }

    // finish intialization; i.e., initialize device
    bRet = CDisk::Init(hActiveKey);
    if (!bRet) {
        goto exit;
    }

    BYTE bPIOMode = 0;
    BYTE bDMAMode = 0;
    BYTE bTransferMode = (BYTE)m_pPort->m_pDskReg[m_dwDeviceId]->dwTransferMode;
    BYTE bIORDYEnable = (BYTE)m_pPort->m_pDskReg[m_dwDeviceId]->dwIORDYEnable;
    switch(bTransferMode)
    {
      case  0x08:
      case  0x09:
      case  0x0a:
      case  0x0b:
      case  0x0c:
              bPIOMode = bTransferMode - 0x08;
              if(bIORDYEnable && bPIOMode >= 3)
              {
                  Sleep(10);
                  OUTREG8(&g_pVAtaReg->ATAControl, 0x41);
                  Sleep(10);
              }
              break;
            case 0x40:
            case 0x41:
            case 0x42:
            case 0x43:
            case 0x44:
            case 0x45:
                bDMAMode = (BYTE)(bTransferMode - 0x40);
                SetTimingRegisters(bDMAMode, UDMA_MODE, CLOCK_PERIOD);
                break;
            case 0x20:
            case 0x21:
            case 0x22:
                bDMAMode = (BYTE)(bTransferMode - 0x20);
                SetTimingRegisters(bDMAMode, MDMA_MODE, CLOCK_PERIOD);
                break;
            default:
                bPIOMode = 0;
                break;
    }
    SetTimingRegisters(bPIOMode, PIO_MODE, CLOCK_PERIOD);
//    ShowRegisters(0x01);

    // Disabling ATA Clock
    if (!BSPATAEnableClock(FALSE))
    {
        DEBUGMSG(ZONE_FUNC, (TEXT("BSPATAEnableClock(): ATA Clock cannot be disabled! \r\n")));
        return FALSE;
    }

    DEBUGMSG(ZONE_FUNC, (_T("CMX31Disk: Init-")));

exit:;
    return bRet;
}

// ----------------------------------------------------------------------------
// Function: MainIoctl
//     This is redundant
//
// Parameters: