csu3_am335x/EVSE/GPL/plc-utils.LNX.2.1.20/source/plc/StartFirmware2.c

/*====================================================================*
*
*   Copyright (c) 2013 Qualcomm Atheros, Inc.
*
*   All rights reserved.
*
*====================================================================*/
/*====================================================================*
 *
 *   struct StartFirmware2 (struct plc * plc, unsigned module, const struct panther_nvm_header * nvm_header)
 *
 *   plc.h
 *
 *   This plugin starts software execution using VS_ST_MAC; despite
 *   an affirmative respond from the device, there is no guarantee
 *   that the firmware will actually start or continue to run so we
 *   wait for a response and report the result;
 *
 *   struct lightning_nvm_header must be little-endian order and ready to send
 *   to the device;
 *
 *   Contributor(s):
 *      Charles Maier <cmaier@qca.qualcomm.com>
 *
 *--------------------------------------------------------------------*/

#ifndef STARTSOFTWARE2_SOURCE
#define STARTSOFTWARE2_SOURCE

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

#include "../tools/error.h"
#include "../plc/plc.h"

signed StartFirmware2 (struct plc * plc, unsigned module, const struct panther_nvm_header * nvm_header)

{
	struct channel * channel = (struct channel *) (plc->channel);
	struct message * message = (struct message *) (plc->message);

#ifndef __GNUC__
#pragma pack (push,1)
#endif

	struct __packed vs_st_mac_request
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_hdr qualcomm;
		uint8_t MODULEID;
		uint8_t RESERVED [3];
		uint32_t IMAGEBOOT;
		uint32_t IMAGELENGTH;
		uint32_t IMAGECHECKSUM;
		uint32_t IMAGESTART;
	}
	* request = (struct vs_st_mac_request *) (message);
	struct __packed vs_st_mac_confirm
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_hdr qualcomm;
		uint8_t MSTATUS;
		uint8_t MODULEID;
	}
	* confirm = (struct vs_st_mac_confirm *) (message);

#ifndef __GNUC__
#pragma pack (pop)
#endif

	memset (message, 0, sizeof (* message));
	Request (plc, "Start %s (%d) (%08X)", plc->NVM.name, module, LE32TOH (nvm_header->EntryPoint));
	EthernetHeader (& request->ethernet, channel->peer, channel->host, channel->type);
	QualcommHeader (& request->qualcomm, 0, (VS_ST_MAC | MMTYPE_REQ));
	plc->packetsize = (ETHER_MIN_LEN - ETHER_CRC_LEN);
	request->IMAGEBOOT = nvm_header->ImageAddress;
	request->IMAGELENGTH = nvm_header->ImageLength;
	request->IMAGECHECKSUM = nvm_header->ImageChecksum;
	request->IMAGESTART = nvm_header->EntryPoint;
	request->MODULEID = VS_MODULE_MAC;
	if (SendMME (plc) <= 0)
	{
		error (PLC_EXIT (plc), errno, CHANNEL_CANTSEND);
		return (-1);
	}
	if (ReadMME (plc, 0, (VS_ST_MAC | MMTYPE_CNF)) <= 0)
	{
		error (PLC_EXIT (plc), errno, CHANNEL_CANTREAD);
		return (-1);
	}
	if (confirm->MSTATUS)
	{
		Failure (plc, PLC_WONTDOIT);
		return (-1);
	}
	return (0);
}

#endif