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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.  
 *
 *--------------------------------------------------------------------*/

/*====================================================================*
 *
 *   psin.c - load prescalers into int6000 parameter file;
 *
 *
 *   Contributor(s):
 *	Charles Maier &lt;cmaier@qca.qualcomm.com&gt;
 *      Nathaniel Houghton &lt;nhoughto@qca.qualcomm.com&gt;
 *
 *--------------------------------------------------------------------*/

/*====================================================================*
 *   system header files;
 *--------------------------------------------------------------------*/

#include &lt;stdio.h&gt;
#include &lt;stdint.h&gt;
#include &lt;ctype.h&gt;
#include &lt;string.h&gt;
#include &lt;unistd.h&gt;
#include &lt;errno.h&gt;

/*====================================================================*
 *   custom header files;
 *--------------------------------------------------------------------*/

#include &quot;../tools/endian.h&quot;
#include &quot;../tools/getoptv.h&quot;
#include &quot;../tools/number.h&quot;
#include &quot;../tools/chars.h&quot;
#include &quot;../tools/types.h&quot;
#include &quot;../tools/error.h&quot;
#include &quot;../tools/files.h&quot;
#include &quot;../key/HPAVKey.h&quot;
#include &quot;../pib/pib.h&quot;
#include &quot;../plc/plc.h&quot;

/*====================================================================*
 *   custom source files;
 *--------------------------------------------------------------------*/

#ifndef MAKEFILE
#include &quot;../tools/getoptv.c&quot;
#include &quot;../tools/putoptv.c&quot;
#include &quot;../tools/version.c&quot;
#include &quot;../tools/fdchecksum32.c&quot;
#include &quot;../tools/hexdecode.c&quot;
#include &quot;../tools/hexstring.c&quot;
#include &quot;../tools/todigit.c&quot;
#include &quot;../tools/error.c&quot;
#endif

#ifndef MAKEFILE
#include &quot;../pib/pibfile1.c&quot;
#include &quot;../pib/piblock.c&quot;
#include &quot;../pib/pibscalers.c&quot;
#endif

#ifndef MAKEFILE
#include &quot;../key/keys.c&quot;
#endif

/*====================================================================*
 *
 *
 *   signed ar7x00_psin (struct _file_ * pib, uint32_t value, uint32_t index);
 *
 *   Places a single 10 bit prescaler into the pib file at index;
 *
 *--------------------------------------------------------------------*/

signed ar7x00_psin (struct _file_ * pib, uint32_t value, uint32_t index)

{
	off_t offset = AMP_PRESCALER_OFFSET + (index * 10 / 8);
	uint8_t bit_offset = (index * 10) % 8;
	uint16_t tmp;
	if (lseek (pib-&gt;file, offset, SEEK_SET) != offset)
	{
		return (-1);
	}
	if (read (pib-&gt;file, &amp;tmp, sizeof (tmp)) != sizeof (tmp))
	{
		return (-1);
	}
	if (lseek (pib-&gt;file, offset, SEEK_SET) != offset)
	{
		return (-1);
	}
	value &amp;= 0x03FF;
	tmp = LE16TOH (tmp);
	tmp &amp;= ~(0x03FF &lt;&lt; bit_offset);
	tmp |= value &lt;&lt; bit_offset;
	tmp = HTOLE16 (tmp);
	if (write (pib-&gt;file, &amp;tmp, sizeof (tmp)) != sizeof (tmp))
	{
		return (-1);
	}
	return (0);
}

/*====================================================================*
 *
 *   signed psin (struct _file_ * pib);
 *
 *
 *--------------------------------------------------------------------*/

static signed psin (struct _file_ * pib)

{
	unsigned index = 0;
	unsigned count = 0;
	unsigned limit = pibscalers (pib);
	uint32_t value = 0;
	signed c;
	if ((limit != INT_CARRIERS) &amp;&amp; (limit != AMP_CARRIERS))
	{
		error (1, 0, &quot;Don't understand this PIB's prescaler format&quot;);
	}
	if (limit == INT_CARRIERS)
	{
		if (lseek (pib-&gt;file, INT_PRESCALER_OFFSET, SEEK_SET) != INT_PRESCALER_OFFSET)
		{
			error (1, errno, FILE_CANTSEEK, pib-&gt;name);
		}
	}
	while ((c = getc (stdin)) != EOF)
	{
		if (isspace (c))
		{
			continue;
		}
		if ((c == '#') || (c == ';'))
		{
			do
			{
				c = getc (stdin);
			}
			while (nobreak (c));
			continue;
		}
		index = 0;
		while (isdigit (c))
		{
			index *= 10;
			index += c - '0';
			c = getc (stdin);
		}
		if (index != count)
		{
			error (1, ECANCELED, &quot;Carrier %d out of order&quot;, index);
		}
		if (index &gt;= limit)
		{
			error (1, EOVERFLOW, &quot;Too many prescalers&quot;);
		}
		while (isblank (c))
		{
			c = getc (stdin);
		}
		value = 0;
		while (isxdigit (c))
		{
			value *= 16;
			value += todigit (c);
			c = getc (stdin);
		}
		if (limit == INT_CARRIERS)
		{
			value = HTOLE32 (value);
			if (write (pib-&gt;file, &amp;value, sizeof (value)) != sizeof (value))
			{
				error (1, errno, &quot;Can't save %s&quot;, pib-&gt;name);
			}
		}
		else if (limit == AMP_CARRIERS)
		{
			if (value &amp; ~0x03FF)
			{
				error (1, errno, &quot;Position %d has invalid prescaler value&quot;, index);
			}
			if (ar7x00_psin (pib, value, index))
			{
				error (1, errno, &quot;Can't update %s&quot;, pib-&gt;name);
			}
		}
		while (nobreak (c))
		{
			c = getc (stdin);
		};
		count++;
	}
	return (0);
}

/*====================================================================*
 *
 *   int main (int argc, char const * argv [])
 *
 *
 *--------------------------------------------------------------------*/

int main (int argc, char const * argv [])

{
	static char const * optv [] =
	{
		&quot;&quot;,
		&quot;pibfile [&lt; scalers]&quot;,
		&quot;load prescalers into int6000 parameter file&quot;,
		(char const *) (0)
	};
	struct _file_ pib;
	signed c;
	optind = 1;
	while ((c = getoptv (argc, argv, optv)) != -1)
	{
		switch ((char) (c))
		{
		default:
			break;
		}
	}
	argc -= optind;
	argv += optind;
	if (argc &gt; 1)
	{
		error (1, ECANCELED, &quot;Only one target file allowed&quot;);
	}
	if ((argc) &amp;&amp; (* argv))
	{
		pib.name = * argv;
		if ((pib.file = open (pib.name, O_BINARY|O_RDWR)) == -1)
		{
			error (1, errno, &quot;Can't open %s&quot;, pib.name);
		}
		else if (pibfile1 (&amp;pib))
		{
			error (1, errno, &quot;Bad PIB file: %s&quot;, pib.name);
		}
		else if (psin (&amp;pib))
		{
			error (1, ECANCELED, &quot;%s&quot;, pib.name);
		}
		else if (piblock (&amp;pib))
		{
			error (1, ECANCELED, &quot;%s&quot;, pib.name);
		}
		close (pib.file);
	}
	return (0);
}


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