ether.c

freescale i.mx31 BSP CE5.0全部源码

//-----------------------------------------------------------------------------
//
//  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.
//
//-----------------------------------------------------------------------------
//
//  Copyright (C) 2004, Motorola Inc. All Rights Reserved
//
//-----------------------------------------------------------------------------
//
//  Copyright (C) 2004, 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:  ether.c
//
//  EBOOT ethernet routines
//
//-----------------------------------------------------------------------------
#include <windows.h>

#include "bsp.h"
#include "loader.h"

// Function pointers to the support library functions of the
// currently installed debug ethernet controller.
//
OAL_KITLETH_INIT			pfnOALKitlethInit;
OAL_KITLETH_SEND_FRAME		pfnOALKitlethSendFrame;
OAL_KITLETH_GET_FRAME		pfnOALKitlethGetFrame;

//-----------------------------------------------------------------------------
//
// Function: InitEthDevice
//
// Function Initializes the Ethernet device function pointers.
//
// Parameters:
//
// Returns:
//
//-----------------------------------------------------------------------------
void InitEthDevice(void)
{
    // Use the CS8900A Ethernet controller for download.
    //
	pfnOALKitlethInit 		= CS8900AInit;
	pfnOALKitlethSendFrame	= CS8900ASendFrame;
	pfnOALKitlethGetFrame	= CS8900AGetFrame;
}

//-----------------------------------------------------------------------------
//
// Function: OEMEthHardwareInit
//
// Function Initializes the Ethernet device to be used for download.
//
// Parameters:
//      pBSPArgs
//          [in] Ptr to the global BSP_ARGS structure.
//
//      pMyAddr
//          [in] Ptr to the ethernet address.
//
// Returns:
//      FALSE on failure
//
//-----------------------------------------------------------------------------
BOOL OEMEthHardwareInit(BSP_ARGS *pBSPArgs, EDBG_ADDR *pMyAddr)
{
    PBYTE  pBaseIOAddress = NULL;
	UINT32 MemoryBase = 0;

    OALMSG(OAL_FUNC, (TEXT("InitEthDevice+\r\n")));

    // Use the MAC address programmed into flash by the user.
    //
    memcpy(pBSPArgs->kitl.mac, pMyAddr->wMAC, 6);
    pBaseIOAddress   = (PBYTE)OALPAtoVA(pBSPArgs->kitl.devLoc.LogicalLoc, FALSE);
    MemoryBase       = (UINT32)OALPAtoVA(BSP_BASE_REG_PA_CS8900A_MEMBASE, FALSE);

    OALMSG(OAL_FUNC, (TEXT("IOBase 0x%x\r\n"), pBSPArgs->kitl.devLoc.LogicalLoc));
    OALMSG(OAL_FUNC, (TEXT("MemoryBase 0x%x\r\n"), BSP_BASE_REG_PA_CS8900A_MEMBASE));

    // Initialize the Ethernet controller.
    //
	OALMSG(OAL_INFO, (TEXT("INFO: initialize Ethernet controller.\r\n")));
    if (!pfnOALKitlethInit((PBYTE)pBaseIOAddress, MemoryBase, pBSPArgs->kitl.mac))
    {
        OALMSG(OAL_ERROR, (TEXT("ERROR: OEMEthHardwareInit: Failed to initialize Ethernet controller.\r\n")));
        return FALSE;
    }

    // Make sure MAC address has been programmed.
    //
    if (!pBSPArgs->kitl.mac[0] && !pBSPArgs->kitl.mac[1] && !pBSPArgs->kitl.mac[2])
    {
        OALMSG(OAL_ERROR, (TEXT("ERROR: OEMEthHardwareInit: Invalid MAC address.\r\n")));
        return FALSE;
    }

    return TRUE;
}


//-----------------------------------------------------------------------------
//
// Function: OEMEthGetSecs
//
// Function returns a free-running seconds count.
//
// Parameters:
//
// Returns:
//      DWORD dwSeconds - the count of seconds
//
//-----------------------------------------------------------------------------
DWORD OEMEthGetSecs(void)
{
    SYSTEMTIME st;

    OEMGetRealTime( &st );
    return ((60UL * (60UL * (24UL * (31UL * st.wMonth + st.wDay) + st.wHour) + st.wMinute)) + st.wSecond);
}

//-----------------------------------------------------------------------------
//
// Function: OEMEthGetFrame
//
// Function checks if a frame has been received, and if so copy it to buffer.
//
// Parameters:
//      pData
//          [out] Ptr to the receive buffer.
//
//      pwLength
//          [in] Length of data in the receiving buffer.
//
// Returns:
//      FALSE if no frame has been received
//
//-----------------------------------------------------------------------------
BOOL OEMEthGetFrame(BYTE *pData, UINT16 *pwLength)
{
    return(pfnOALKitlethGetFrame(pData, pwLength));
}

//-----------------------------------------------------------------------------
//
// Function: OEMEthGetFrame
//
// Function checks if a frame has been received, and if so copy it to buffer.
//
// Parameters:
//      pData
//          [in] Ptr to the send buffer.
//
//      pwLength
//          [in] Length of data to be sent.
//
// Returns:
//      FALSE on failure
//
//-----------------------------------------------------------------------------
BOOL OEMEthSendFrame(BYTE *pData, DWORD dwLength)
{
	int retries = 0;
	while (retries++ < 4)
	{
		// SendFrame will return 0 if sending is success
        if (!pfnOALKitlethSendFrame(pData, dwLength))
            return TRUE;
		else
			EdbgOutputDebugString("!OEMEthSendFrame failure, retry %u\n",retries);
	}

	return FALSE;
}