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

/*====================================================================*
*
*   Copyright (c) 2013 Qualcomm Atheros, Inc.
*
*   All rights reserved.
*
*====================================================================*/

/*====================================================================*
 *
 *   signed PhyRates (struct plc * plc)
 *
 *   detect the chipset type and call appropriate function to
 *   display the PHY rates; older devices use 16-bit rates but newer
 *   devices use 32-bit;
 *
 *   if you already know the chipset being interrogated, then you can
 *   call INTPhyRate or AMPPhyRate directly and save some overhead;
 *
 *   Contributor(s):
 *      Charles Maier <cmaier@qca.qualcomm.com>
 *
 *--------------------------------------------------------------------*/

#ifndef PHYRATES_SOURCE
#define PHYRATES_SOURCE

#include <unistd.h>
#include <stdlib.h>
#include <stdint.h>
#include <limits.h>

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

signed PLCPhyRates (struct plc * plc)

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

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

	struct __packed vs_sw_ver_request
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_hdr qualcomm;
		uint8_t MSTATUS;
		uint8_t MDEVICEID;
		uint8_t MVERLENGTH;
		char MVERSION [PLC_VERSION_STRING];
	}
	* request = (struct vs_sw_ver_request *) (message);
	struct __packed vs_sw_ver_confirm
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_hdr qualcomm;
		uint8_t MSTATUS;
		uint8_t MDEVICEID;
		uint8_t MVERLENGTH;
		char MVERSION [PLC_VERSION_STRING];
	}
	* confirm = (struct vs_sw_ver_confirm *) (message);

#ifndef __GNUC__
#pragma pack (pop)
#endif

	memset (message, 0, sizeof (* message));
	EthernetHeader (& request->ethernet, channel->peer, channel->host, channel->type);
	QualcommHeader (& request->qualcomm, 0, (VS_SW_VER | MMTYPE_REQ));
	plc->packetsize = (ETHER_MIN_LEN - ETHER_CRC_LEN);
	if (SendMME (plc) <= 0)
	{
		error (PLC_EXIT (plc), errno, CHANNEL_CANTSEND);
		return (-1);
	}
	if (ReadMME (plc, 0, (VS_SW_VER | MMTYPE_CNF)) <= 0)
	{
		error (PLC_EXIT (plc), errno, CHANNEL_CANTREAD);
		return (-1);
	}
	if (confirm->MSTATUS)
	{
		Failure (plc, "Device will not start");
		return (-1);
	}
	chipset (confirm);
	if ((plc->hardwareID = confirm->MDEVICEID) < CHIPSET_AR7400)
	{
		status = PhyRates1 (plc);
	}
	else 
	{
		status = PhyRates2 (plc);
	}
	return (status);
}

#endif