apifunctions.c

PCI9054RDK-LITE开发板的原程序

    BOOLEAN          *pFlag
    )
{
    U32 RegisterValue;


    // Get EEPROM status register
    RegisterValue =
        PLX_REG_READ(
            pdx,
            PCI9050_EEPROM_CTRL
            );

    if (RegisterValue & (1 << 28))
    {
        *pFlag = TRUE;
    }
    else
    {
        *pFlag = FALSE;
    }

    return ApiSuccess;
}




/******************************************************************************
 *
 * Function   :  PlxEepromReadByOffset
 *
 * Description:  Read a value from the EEPROM at a specified offset
 *
 ******************************************************************************/
RETURN_CODE
PlxEepromReadByOffset(
    DEVICE_EXTENSION *pdx,
    U16               offset,
    U32              *pValue
    )
{
    // Verify the offset
    if ((offset & 0x3) || (offset > 0x200))
    {
        DebugPrintf(("ERROR - Invalid EEPROM offset\n"));
        return ApiInvalidOffset;
    }

    // Read EEPROM
    Pci9000_EepromReadByOffset(
        pdx,
        Eeprom93CS46,
        offset,
        pValue
        );

    DebugPrintf((
        "EEPROM Offset %02X = %08X\n",
        offset,
        *pValue
        ));

    return ApiSuccess;
}




/******************************************************************************
 *
 * Function   :  PlxEepromWriteByOffset
 *
 * Description:  Write a 32-bit value to the EEPROM at a specified offset
 *
 ******************************************************************************/
RETURN_CODE
PlxEepromWriteByOffset(
    DEVICE_EXTENSION *pdx,
    U16               offset,
    U32               value
    )
{
    // Verify the offset
    if ((offset & 0x3) || (offset > 0x200))
    {
        DebugPrintf(("ERROR - Invalid EEPROM offset\n"));
        return ApiInvalidOffset;
    }

    // 9050 does not protect the EEPROM from write access, do nothing

    // Write to EEPROM
    Pci9000_EepromWriteByOffset(
        pdx,
        Eeprom93CS46,
        offset,
        value
        );

    DebugPrintf((
        "Wrote %08X to EEPROM Offset %02X\n",
        value,
        offset
        ));

    return ApiSuccess;
}




/******************************************************************************
 *
 * Function   :  PlxRegisterMailboxRead
 *
 * Description:  Reads a valid Mailbox register from the PLX device
 *
 ******************************************************************************/
RETURN_CODE
PlxRegisterMailboxRead(
    DEVICE_EXTENSION *pdx,
    MAILBOX_ID        MailboxId,
    U32              *pValue
    )
{
    *pValue = (U32)-1;

    return ApiUnsupportedFunction;
}




/******************************************************************************
 *
 * Function   :  PlxRegisterMailboxWrite
 *
 * Description:  Write to one of the PLX device's Mailbox registers
 *
 ******************************************************************************/
RETURN_CODE
PlxRegisterMailboxWrite(
    DEVICE_EXTENSION *pdx,
    MAILBOX_ID        MailboxId,
    U32               value
    )
{
    return ApiUnsupportedFunction;
}




/******************************************************************************
 *
 * Function   :  PlxRegisterDoorbellRead
 *
 * Description:  Returns the last doorbell interrupt value
 *
 ******************************************************************************/
RETURN_CODE
PlxRegisterDoorbellRead(
    DEVICE_EXTENSION *pdx,
    U32              *pValue
    )
{
    *pValue = (U32)-1;

    return ApiUnsupportedFunction;
}




/******************************************************************************
 *
 * Function   :  PlxRegisterDoorbellWrite
 *
 * Description:  Sets the local Doorbell Register
 *
 ******************************************************************************/
RETURN_CODE
PlxRegisterDoorbellWrite(
    DEVICE_EXTENSION *pdx,
    U32               value
    )
{
    return ApiUnsupportedFunction;
}




/******************************************************************************
 *
 * Function   :  PlxMuInboundPortRead
 *
 * Description:  Read the Inbound messaging port of a PLX device
 *
 ******************************************************************************/
RETURN_CODE
PlxMuInboundPortRead(
    DEVICE_EXTENSION *pdx,
    U32              *pFrame
    )
{
    *pFrame = (U32)-1;

    return ApiUnsupportedFunction;
}




/******************************************************************************
 *
 * Function   :  PlxMuInboundPortWrite
 *
 * Description:  Write a posted message frame to the inbound port
 *
 ******************************************************************************/
RETURN_CODE
PlxMuInboundPortWrite(
    DEVICE_EXTENSION *pdx,
    U32               Frame
    )
{
    return ApiUnsupportedFunction;
}




/******************************************************************************
 *
 * Function   :  PlxMuOutboundPortRead
 *
 * Description:  Reads the posted message frame from the outbound port
 *
 ******************************************************************************/
RETURN_CODE
PlxMuOutboundPortRead(
    DEVICE_EXTENSION *pdx,
    U32              *pFrame
    )
{
    *pFrame = (U32)-1;

    return ApiUnsupportedFunction;
}




/******************************************************************************
 *
 * Function   :  PlxMuOutboundPortWrite
 *
 * Description:  Writes to the outbound port with a free message frame
 *
 ******************************************************************************/
RETURN_CODE
PlxMuOutboundPortWrite(
    DEVICE_EXTENSION *pdx,
    U32               Frame
    )
{
    return ApiUnsupportedFunction;
}




/******************************************************************************
 *
 * Function   :  PlxDmaControl
 *
 * Description:  Control the DMA engine
 *
 ******************************************************************************/
RETURN_CODE
PlxDmaControl(
    DEVICE_EXTENSION *pdx,
    DMA_CHANNEL       channel,
    DMA_COMMAND       command
    )
{
    return ApiUnsupportedFunction;
}




/******************************************************************************
 *
 * Function   :  PlxDmaStatus
 *
 * Description:  Get status of a DMA channel
 *
 ******************************************************************************/
RETURN_CODE
PlxDmaStatus(
    DEVICE_EXTENSION *pdx,
    DMA_CHANNEL       channel
    )
{
    return ApiUnsupportedFunction;
}




/******************************************************************************
 *
 * Function   :  PlxDmaBlockChannelOpen
 *
 * Description:  Requests usage of a device's DMA channel
 *
 ******************************************************************************/
RETURN_CODE
PlxDmaBlockChannelOpen(
    DEVICE_EXTENSION *pdx,
    DMA_CHANNEL       channel,
    DMA_CHANNEL_DESC *pDesc,
    VOID             *pOwner
    )
{
    return ApiUnsupportedFunction;
}




/******************************************************************************
 *
 * Function   :  PlxDmaBlockTransfer
 *
 * Description:  Performs DMA block transfer
 *
 ******************************************************************************/
RETURN_CODE
PlxDmaBlockTransfer(
    DEVICE_EXTENSION     *pdx,
    DMA_CHANNEL           channel,
    DMA_TRANSFER_ELEMENT *pDmaData
    )
{
    return ApiUnsupportedFunction;
}




/******************************************************************************
 *
 * Function   :  PlxDmaBlockChannelClose
 *
 * Description:  Close a previously opened channel
 *
 ******************************************************************************/
RETURN_CODE
PlxDmaBlockChannelClose(
    DEVICE_EXTENSION *pdx,
    DMA_CHANNEL       channel,
    BOOLEAN           bCheckInProgress
    )
{
    return ApiUnsupportedFunction;
}




/******************************************************************************
 *
 * Function   :  PlxDmaSglChannelOpen
 *
 * Description:  Open a DMA channel for SGL mode
 *
 ******************************************************************************/
RETURN_CODE
PlxDmaSglChannelOpen(
    DEVICE_EXTENSION *pdx,
    DMA_CHANNEL       channel,
    DMA_CHANNEL_DESC *pDesc,
    VOID             *pOwner
    )
{
    return ApiUnsupportedFunction;
}




/******************************************************************************
 *
 * Function   :  PlxDmaSglTransfer
 *
 * Description:  Performs a DMA SGL transfer
 *
 ******************************************************************************/
RETURN_CODE
PlxDmaSglTransfer(
    DEVICE_EXTENSION     *pdx,
    DMA_CHANNEL           channel,
    DMA_TRANSFER_ELEMENT *pDmaData
    )
{
    return ApiUnsupportedFunction;
}




/******************************************************************************
 *
 * Function   :  PlxDmaSglChannelClose
 *
 * Description:  Close a previously opened channel
 *
 ******************************************************************************/
RETURN_CODE
PlxDmaSglChannelClose(
    DEVICE_EXTENSION *pdx,
    DMA_CHANNEL       channel,
    BOOLEAN           bCheckInProgress
    )
{
    return ApiUnsupportedFunction;
}