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			EmulateHost.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 EmulateHost (struct plc * plc);
 *
 *   plc.h
 *
 *   wait indefinitely for VS_HOST_ACTION messages; service requests
 *   only; it stops dead - like a bug! - on error;
 *
 *
 *   Contributor(s):
 *      Charles Maier &lt;cmaier@qca.qualcomm.com&gt;
 *
 *--------------------------------------------------------------------*/

#ifndef EMULATEHOST_SOURCE
#define EMULATEHOST_SOURCE

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

#include &quot;../plc/plc.h&quot;
#include &quot;../ether/channel.h&quot;
#include &quot;../tools/error.h&quot;
#include &quot;../tools/flags.h&quot;
#include &quot;../tools/files.h&quot;

#include &quot;../nvm/nvm.h&quot;
#include &quot;../pib/pib.h&quot;

signed EmulateHost (struct plc * plc)

{
	struct channel * channel = (struct channel *)(plc-&gt;channel);
	struct message * message = (struct message *)(plc-&gt;message);
	static char const * actions [] =
	{
		&quot;start device&quot;,
		&quot;store firmware&quot;,
		&quot;store parameters&quot;,
		&quot;update host&quot;,
		&quot;config memory&quot;,
		&quot;restore defaults&quot;,
		&quot;unknown&quot;
	};

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

	struct __packed vs_host_action_ind
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_hdr qualcomm;
		uint8_t MACTION;
		uint8_t MAJOR_VERSION;
		uint8_t MINOR_VERSION;
	}
	* indicate = (struct vs_host_action_ind *) (message);

#if 0

	struct __packed vs_host_action_rsp
	{
		struct ethernet_hdr ethernet;
		struct qualcomm_hdr qualcomm;
		uint8_t MSTATUS;
	}
	* response = (struct vs_host_action_rsp *) (message);

#endif

#ifndef __GNUC__
#pragma pack (pop)
#endif

	struct nvm_header1 nvm_header;
	struct pib_header pib_header;
	uint32_t offset;
	char const * PIB = plc-&gt;PIB.name;
	char const * NVM = plc-&gt;NVM.name;
	signed timer = channel-&gt;timeout;
	signed status = 0;
	Request (plc, &quot;Waiting for Host Action&quot;);
	while (1)
	{
		channel-&gt;timeout = plc-&gt;timer;
		status = ReadMME (plc, 0, (VS_HOST_ACTION | MMTYPE_IND));
		channel-&gt;timeout = timer;
		if (status &lt; 0)
		{
			break;
		}
		if (status &gt; 0)
		{
			printf (&quot;\n&quot;);
			if (indicate-&gt;MACTION &lt; (sizeof (actions) / sizeof (char const *)))
			{
				Confirm (plc, &quot;Host Action Request is (%d) %s.&quot;, indicate-&gt;MACTION, actions [indicate-&gt;MACTION]);
			}
			else
			{
				error (0, ENOTSUP, &quot;Host Action 0x%0X&quot;, indicate-&gt;MACTION);
				continue;
			}
			memcpy (channel-&gt;peer, indicate-&gt;ethernet.OSA, sizeof (channel-&gt;peer));
			channel-&gt;timeout = timer;
			if (indicate-&gt;MACTION == 0x00)
			{
				unsigned module = 0;
				char firmware [PLC_VERSION_STRING];
				if (HostActionResponse (plc))
				{
					return (-1);
				}
				if (lseek (plc-&gt;PIB.file, 0, SEEK_SET))
				{
					error (1, errno, FILE_CANTHOME, plc-&gt;PIB.name);
				}
				if (read (plc-&gt;PIB.file, &amp;pib_header, sizeof (pib_header)) != sizeof (pib_header))
				{
					error (1, errno, FILE_CANTREAD, plc-&gt;PIB.name);
				}
				if (lseek (plc-&gt;PIB.file, 0, SEEK_SET))
				{
					error (1, errno, FILE_CANTHOME, plc-&gt;PIB.name);
				}
				if (BE16TOH (*(uint16_t *)(&amp;pib_header)) &lt; 0x0305)
				{
					offset = LEGACY_PIBOFFSET;
				}
				else if (BE16TOH (*(uint16_t *)(&amp;pib_header)) &lt; 0x0500)
				{
					offset = INT6x00_PIBOFFSET;
				}
				else
				{
					offset = AR7x00_PIBOFFSET;
				}
				if (WriteMEM (plc, &amp;plc-&gt;PIB, 0, offset, LE16TOH (pib_header.PIBLENGTH)))
				{
					return (-1);
				}
				if (lseek (plc-&gt;NVM.file, 0, SEEK_SET))
				{
					error (1, errno, FILE_CANTHOME, plc-&gt;NVM.name);
				}
				if (read (plc-&gt;NVM.file, &amp;nvm_header, sizeof (nvm_header)) != sizeof (nvm_header))
				{
					error (1, errno, FILE_CANTREAD, plc-&gt;NVM.name);
				}
				while (nvm_header.NEXTHEADER)
				{
					lseek (plc-&gt;NVM.file, LE32TOH (nvm_header.NEXTHEADER), SEEK_SET);
					if (read (plc-&gt;NVM.file, &amp;nvm_header, sizeof (nvm_header)) != sizeof (nvm_header))
					{
						error (1, errno, FILE_CANTREAD, plc-&gt;NVM.name);
					}
					module++;
				}
				if (WriteFirmware1 (plc, module, &amp;nvm_header))
				{
					return (-1);
				}
				if (StartFirmware1 (plc, module, &amp;nvm_header))
				{
					return (-1);
				}
				if (WaitForStart (plc, firmware, sizeof (firmware)))
				{
					return (-1);
				}
				if (_anyset (plc-&gt;flags, PLC_FLASH_DEVICE))
				{
					if (WriteNVM (plc))
					{
						return (-1);
					}
					if (WritePIB (plc))
					{
						return (-1);
					}
					if (FlashNVM (plc))
					{
						return (-1);
					}
				}
				continue;
			}
			if (indicate-&gt;MACTION == 0x01)
			{
				if (HostActionResponse (plc))
				{
					return (-1);
				}
				close (plc-&gt;NVM.file);
				if (ReadFirmware1 (plc))
				{
					return (-1);
				}
				if ((plc-&gt;NVM.file = open (plc-&gt;NVM.name = plc-&gt;nvm.name, O_BINARY|O_RDONLY)) == -1)
				{
					error (1, errno, &quot;%s&quot;, plc-&gt;NVM.name);
				}
				if (ResetDevice (plc))
				{
					return (-1);
				}
				continue;
			}
			if (indicate-&gt;MACTION == 0x02)
			{
				if (HostActionResponse (plc))
				{
					return (-1);
				}
				close (plc-&gt;PIB.file);
				if (ReadParameters1 (plc))
				{
					return (-1);
				}
				if ((plc-&gt;PIB.file = open (plc-&gt;PIB.name = plc-&gt;pib.name, O_BINARY|O_RDONLY)) == -1)
				{
					error (1, errno, &quot;%s&quot;, plc-&gt;PIB.name);
				}
				if (ResetDevice (plc))
				{
					return (-1);
				}
				continue;
			}
			if (indicate-&gt;MACTION == 0x03)
			{
				if (HostActionResponse (plc))
				{
					return (-1);
				}
				close (plc-&gt;NVM.file);
				if (ReadFirmware1 (plc))
				{
					return (-1);
				}
				if ((plc-&gt;NVM.file = open (plc-&gt;NVM.name = plc-&gt;nvm.name, O_BINARY|O_RDONLY)) == -1)
				{
					error (1, errno, &quot;%s&quot;, plc-&gt;NVM.name);
				}
				close (plc-&gt;PIB.file);
				if (ReadParameters1 (plc))
				{
					return (-1);
				}
				if ((plc-&gt;PIB.file = open (plc-&gt;PIB.name = plc-&gt;pib.name, O_BINARY|O_RDONLY)) == -1)
				{
					error (1, errno, &quot;%s&quot;, plc-&gt;PIB.name);
				}
				if (ResetDevice (plc))
				{
					return (-1);
				}
				continue;
			}
			if (indicate-&gt;MACTION == 0x04)
			{

#if 0

/*
 *	Due to an omission in the INT6300 BootLoader, responding to this VS_HOST_ACTION
 *      indication will suppress subsequent VS_HOST_ACTION messages and the device will
 *     	not request firmware and parameters; this may be corrected on the INT6400;
 */

				if (HostActionResponse (plc))
				{
					return (-1);
				}

#endif

				if (WriteCFG (plc))
				{
					return (-1);
				}

/*
 *	At this point, one could download firmware and parameters without waiting for
 *	further  requests from the device; however, we elect to wait for them since it
 *	is 'good form'; a device should send code 0x00 within 10 seconds of this one;
 */

				continue;
			}
			if (indicate-&gt;MACTION == 0x05)
			{
				if (HostActionResponse (plc))
				{
					return (-1);
				}
				close (plc-&gt;NVM.file);
				if ((plc-&gt;NVM.file = open (plc-&gt;NVM.name = NVM, O_BINARY|O_RDONLY)) == -1)
				{
					error (1, errno, &quot;%s&quot;, plc-&gt;NVM.name);
				}
				close (plc-&gt;PIB.file);
				if ((plc-&gt;PIB.file = open (plc-&gt;PIB.name = PIB, O_BINARY|O_RDONLY)) == -1)
				{
					error (1, errno, &quot;%s&quot;, plc-&gt;PIB.name);
				}
				if (ResetDevice (plc))
				{
					return (-1);
				}
				continue;
			}
			error (0, ENOSYS, &quot;Host Action 0x%0X&quot;, indicate-&gt;MACTION);
		}
	}
	return (0);
}

#endif


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