csu3_am335x/EVSE/GPL/open-plc-utils-0.3/plc/ToneMaps1.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
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 *   PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
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 *   NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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 *   OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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 *--------------------------------------------------------------------*/

/*====================================================================*
 *
 *   signed ToneMaps1 (struct plc * plc);
 *
 *   plc.h
 *
 *
 *   Contributor(s):
 *      Charles Maier
 *
 *--------------------------------------------------------------------*/

#ifndef TONEMAPS1_SOURCE
#define TONEMAPS1_SOURCE

#include <stdio.h>
#include <stdint.h>

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

#ifndef SIGNALTONOISE1_SOURCE

static uint8_t const mod2bits [AMP_BITS] =

{
	0,
	1,
	2,
	3,
	4,
	6,
	8,
	10,
	12
};

#endif

signed ToneMaps1 (struct plc * plc)

{
	extern uint8_t const mod2bits [AMP_BITS];
	struct channel * channel = (struct channel *)(plc->channel);
	struct message * message = (struct message *)(plc->message);
	byte tonemap [PLC_SLOTS] [INT_CARRIERS >> 1];
	uint16_t carriers = 0;
	uint16_t carrier = 0;
	uint8_t slots = 0;
	uint8_t slot = 0;

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

	struct __packed vs_tone_slot_char_request
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_hdr qualcomm;
		uint8_t MACADDRESS [ETHER_ADDR_LEN];
		uint8_t TMSLOT;
	}
	* request = (struct vs_tone_slot_char_request *) (message);
	struct __packed vs_tone_slot_char_confirm
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_hdr qualcomm;
		uint8_t MSTATUS;
		uint8_t TMSLOT;
		uint8_t NUMTMS;
		uint16_t TMNUMACTCARRIERS;
		uint8_t MOD_CARRIER [INT_CARRIERS/2];
		uint8_t GIL;
		uint8_t AGC;
	}
	* confirm = (struct vs_tone_slot_char_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_RX_TONE_MAP_CHAR | MMTYPE_REQ));
	memcpy (request->MACADDRESS, plc->RDA, sizeof (request->MACADDRESS));
	request->TMSLOT = 0;
	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_RX_TONE_MAP_CHAR | MMTYPE_CNF)) <= 0)
	{
		error (PLC_EXIT (plc), errno, CHANNEL_CANTREAD);
		return (-1);
	}
	carriers = LE16TOH (confirm->TMNUMACTCARRIERS);
	slots = confirm->NUMTMS;
	if (!slots)
	{
		error (PLC_EXIT (plc), ECANCELED, "No Tone Maps Available");
		return (-1);
	}
	memset (tonemap, 0, sizeof (tonemap));
	for (slot = 0; slot < slots; slot++)
	{
		EthernetHeader (&request->ethernet, channel->peer, channel->host, channel->type);
		QualcommHeader (&request->qualcomm, 0, (VS_RX_TONE_MAP_CHAR | MMTYPE_REQ));
		memcpy (request->MACADDRESS, plc->RDA, sizeof (request->MACADDRESS));
		request->TMSLOT = slot;
		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_RX_TONE_MAP_CHAR | MMTYPE_CNF)) <= 0)
		{
			error (PLC_EXIT (plc), errno, CHANNEL_CANTREAD);
			return (-1);
		}
		if (confirm->MSTATUS)
		{
			Failure (plc, PLC_WONTDOIT);
			return (-1);
		}
		memcpy (&tonemap [slot][0], confirm->MOD_CARRIER, sizeof (confirm->MOD_CARRIER));
	}
	while (carrier < carriers)
	{
		unsigned value = 0;
		unsigned scale = 0;
		unsigned index = carrier >> 1;
		printf ("% 04d", carrier);
		for (slot = 0; slot < PLC_SLOTS; slot++)
		{
			value = tonemap [slot][index];
			if ((carrier & 1))
			{
				value >>= 4;
			}
			value &= 0x0F;
			printf (" %02d", mod2bits [value]);
			value *= value;
			scale += value;
		}
		if (slots)
		{
			scale /= slots;
		}
		if (_anyset (plc->flags, PLC_GRAPH))
		{
			printf (" %03d ", scale);
			while (scale--)
			{
				printf ("#");
			}
		}
		printf ("\n");
		carrier++;
	}
	return (0);
}


#endif