csu3_am335x/EVSE/GPL/open-plc-utils-0.3/plc/BootFirmware2.c

/*====================================================================*
 *
 *   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
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 *   OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 *   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 *--------------------------------------------------------------------*/

/*====================================================================*
 *
 *   signed BootFirmware2 (struct plc * plc)
 *
 *   plc.h
 *
 *
 *   Contributor(s):
 *      Charles Maier
 *
 *--------------------------------------------------------------------*/

#ifndef BOOTFIRMWARE2_SOURCE
#define BOOTFIRMWARE2_SOURCE

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

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

signed BootFirmware2 (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, ECANCELED, NVM_HDR_VERSION, plc->NVM.name, module);
		}
		if (LE16TOH (nvm_header.MinorVersion) != 1)
		{
			error (1, ECANCELED, NVM_HDR_VERSION, plc->NVM.name, module);
		}
		if (checksum32 (&nvm_header, sizeof (nvm_header), 0))
		{
			error (1, ECANCELED, 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_FIRMWARE)
		{
			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