    /*====================================================================*
     *
     *   Copyright (c) 2013 Qualcomm Atheros, Inc.
     *
     *   All rights reserved.
     *
     *   Redistribution and use in source and binary forms, with or
     *   without modification, are permitted (subject to the limitations
     *   in the disclaimer below) provided that the following conditions
     *   are met:
     *
     *   * Redistributions of source code must retain the above copyright
     *     notice, this list of conditions and the following disclaimer.
     *
     *   * Redistributions in binary form must reproduce the above
     *     copyright notice, this list of conditions and the following
     *     disclaimer in the documentation and/or other materials
     *     provided with the distribution.
     *
     *   * Neither the name of Qualcomm Atheros nor the names of
     *     its contributors may be used to endorse or promote products
     *     derived from this software without specific prior written
     *     permission.
     *
     *   NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE
     *   GRANTED BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE
     *   COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR
     *   IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     *   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     *   PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
     *   OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     *   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     *   LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     *   HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     *   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
     *   OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
     *   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     *
     *--------------------------------------------------------------------*/

    /*====================================================================*
     *
     *   int InitDevice2 (struct plc * plc);
     *
     *   plc.h
     *
     *   configure volatile memory by finding the memctl applet in a
     *   newer .nvm file then downloading it and executing it;
     *
     *   this implementation detects chipsets prior to INT6400 and uses
     *   VS_WR_MEM/VS_ST_MAC messages instead of VS_WRITE_AND_EXECUTE
     *   messages;
     *
     *
     *   Contributor(s):
     *      Charles Maier <cmaier@qca.qualcomm.com>
     *
     *--------------------------------------------------------------------*/

    #ifndef INITMEMORY2_SOURCE
    #define INITMEMORY2_SOURCE

    #include <stdint.h>
    #include <unistd.h>
    #include <memory.h>
    #include <errno.h>

    #include "../tools/memory.h"
    #include "../tools/files.h"
    #include "../tools/flags.h"
    #include "../tools/error.h"
    #include "../plc/plc.h"
    #include "../nvm/nvm.h"

    int InitDevice2 (struct plc * plc)

    {
    	unsigned module = 0;
    	struct nvm_header2 nvm_header;
    	if (lseek (plc->NVM.file, 0, SEEK_SET))
    	{
    		error (1, errno, FILE_CANTHOME, plc->NVM.name);
    	}
    	do
    	{
    		if (read (plc->NVM.file, &nvm_header, sizeof (nvm_header)) != sizeof (nvm_header))
    		{
    			error (1, errno, NVM_HDR_CANTREAD, plc->NVM.name, module);
    		}
    		if (LE16TOH (nvm_header.MajorVersion) != 1)
    		{
    			error (1, 0, NVM_HDR_VERSION, plc->NVM.name, module);
    		}
    		if (LE16TOH (nvm_header.MinorVersion) != 1)
    		{
    			error (1, 0, NVM_HDR_VERSION, plc->NVM.name, module);
    		}
    		if (checksum32 (&nvm_header, sizeof (nvm_header), 0))
    		{
    			error (1, 0, NVM_HDR_CHECKSUM, plc->NVM.name, module);
    		}

    #if 0

    		if (_allclr (LE16TOH (nvm_header.ExecuteMask), (1 << (plc->hardwareID - 1))))
    		{
    			if (lseek (plc->NVM.file, LE32TOH (nvm_header.NextHeader), SEEK_SET) == -1)
    			{
    				error (1, errno, "Can't skip module: %s (%d)", plc->NVM.name, module);
    			}
    		}
    		else

    #endif

    		if (LE32TOH (nvm_header.ImageType) == NVM_IMAGE_MEMCTL)
    		{
    			if (WriteExecuteFirmware2 (plc, module, &nvm_header))
    			{
    				return (-1);
    			}
    			break;
    		}
    		if (lseek (plc->NVM.file, LE32TOH (nvm_header.NextHeader), SEEK_SET) == -1)
    		{
    			error (1, errno, "Can't skip module: %s (%d)", plc->NVM.name, module);
    		}
    		module++;
    	}
    	while (~nvm_header.NextHeader);
    	return (0);
    }

    #endif

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