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			Traffic2.c
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/*====================================================================*
 *
 *   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 &quot;AS IS&quot; 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.  
 *
 *--------------------------------------------------------------------*/

/*====================================================================*
 *
 *   signed Traffic2 (struct plc * plc);
 *
 *   generate bi-directional traffic between a local device and all
 *   remote devices on a powerline network; remote devices need not
 *   be connected; no traffic is generated between remote devices;
 *
 *   this function is similar to NetworkTraffic but takes less time
 *   since not all powerline paths are exercised and those that are
 *   can be exercised in parallel;
 *
 *   this function is for AR7x00 chipsets due to chipset design
 *   changes; use Traffic1 for INT6x00 chipsets;
 *
 *
 *   Contributor(s):
 *      Charles Maier &lt;cmaier@qca.qualcomm.com&gt;
 *      Matthieu Poullet &lt;m.poullet@avm.de&gt;
 *
 *--------------------------------------------------------------------*/

#ifndef TRAFFIC2_SOURCE
#define TRAFFIC2_SOURCE

#include &lt;memory.h&gt;
#include &lt;errno.h&gt;

#include &quot;../tools/memory.h&quot;
#include &quot;../tools/error.h&quot;
#include &quot;../tools/flags.h&quot;
#include &quot;../mme/mme.h&quot;
#include &quot;../plc/plc.h&quot;

signed Traffic2 (struct plc * plc)

{
	struct channel * channel = (struct channel *)(plc-&gt;channel);
	struct message * message = (struct message *)(plc-&gt;message);

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

	struct __packed vs_nw_info_request
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_fmi qualcomm;
	}
	* request = (struct vs_nw_info_request *)(message);
	struct __packed vs_nw_info_confirm
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_fmi qualcomm;
		uint8_t SUB_VERSION;
		uint8_t Reserved;
		uint16_t DATA_LEN;
		uint8_t DATA [1];
	}
	* confirm = (struct vs_nw_info_confirm *)(message);
	struct __packed station
	{
		uint8_t MAC [ETHER_ADDR_LEN];
		uint8_t TEI;
		uint8_t Reserved [3];
		uint8_t BDA [ETHER_ADDR_LEN];
		uint16_t AVGTX;
		uint8_t COUPLING;
		uint8_t Reserved3;
		uint16_t AVGRX;
		uint16_t Reserved4;
	}
	* station;
	struct __packed network
	{
		uint8_t NID [7];
		uint8_t Reserved1 [2];
		uint8_t SNID;
		uint8_t TEI;
		uint8_t Reserved2 [4];
		uint8_t ROLE;
		uint8_t CCO_MAC [ETHER_ADDR_LEN];
		uint8_t CCO_TEI;
		uint8_t Reserved3 [3];
		uint8_t NUMSTAS;
		uint8_t Reserved4 [5];
		struct station stations [1];
	}
	* network;
	struct __packed networks
	{
		uint8_t Reserved;
		uint8_t NUMAVLNS;
		struct network networks [1];
	}
	* networks = (struct networks *) (confirm-&gt;DATA);

#ifndef __GNUC__
#pragma pack (pop)
#endif

	byte bridgelist [255] [ETHER_ADDR_LEN];
	unsigned bridges = LocalDevices (channel, message, bridgelist, sizeof (bridgelist));
	while (bridges--)
	{
		byte devicelist [255] [ETHER_ADDR_LEN];
		unsigned devices = 0;
		memset (message, 0, sizeof (* message));
		EthernetHeader (&amp;request-&gt;ethernet, bridgelist [bridges], channel-&gt;host, channel-&gt;type);
		QualcommHeader1 (&amp;request-&gt;qualcomm, 1, (VS_NW_INFO | MMTYPE_REQ));
		plc-&gt;packetsize = ETHER_MIN_LEN - ETHER_CRC_LEN;
		if (SendMME (plc) &lt;= 0)
		{
			error (0, errno, CHANNEL_CANTSEND);
			continue;
		}
		if (ReadMME (plc, 1, (VS_NW_INFO | MMTYPE_CNF)) &lt;= 0)
		{
			error (0, errno, CHANNEL_CANTREAD);
			continue;
		}
		memcpy (devicelist [devices++], request-&gt;ethernet.OSA, sizeof (devicelist [0]));
		network = (struct network *)(&amp;networks-&gt;networks);
		while (networks-&gt;NUMAVLNS--)
		{
			station = (struct station *)(&amp;network-&gt;stations);
			while (network-&gt;NUMSTAS--)
			{
				memcpy (devicelist [devices++], station-&gt;MAC, sizeof (devicelist [0]));
				station++;
			}
			network = (struct network *)(station);
		}
		while (devices-- &gt; 1)
		{
			Transmit (plc, devicelist [0], devicelist [devices]);
			Antiphon (plc, devicelist [devices], devicelist [0]);
		}
	}
	return (0);
}

#endif


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