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

    /*====================================================================*
     *
     *   psgraph.c - print PIB prescaler graph;
     *
     *
     *   Contributor(s):
     *      Charles Maier <cmaier@qca.qualcomm.com>
     *
     *--------------------------------------------------------------------*/

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

    #include <unistd.h>
    #include <limits.h>
    #include <errno.h>

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

    #include "../tools/getoptv.h"
    #include "../tools/putoptv.h"
    #include "../tools/number.h"
    #include "../tools/error.h"
    #include "../tools/files.h"
    #include "../plc/plc.h"
    #include "../pib/pib.h"

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

    #ifndef MAKEFILE
    #include "../tools/getoptv.c"
    #include "../tools/putoptv.c"
    #include "../tools/version.c"
    #include "../tools/uintspec.c"
    #include "../tools/todigit.c"
    #include "../tools/error.c"
    #endif

    #ifndef MAKEFILE
    #include "../pib/pibscalers.c"
    #endif

    /*====================================================================*
     *   program constants;
     *--------------------------------------------------------------------*/

    #define PSGRAPH_VERBOSE (1 << 0)
    #define PSGRAPH_SILENCE (1 << 1)

    /*====================================================================*
     *
     *   void int6x00Prescalers (struct _file_ * pib, unsigned scale);
     *
     *
     *--------------------------------------------------------------------*/

    static void int6x00Prescalers (struct _file_ * pib, unsigned scale)

    {
    	unsigned index = 0;
    	if (lseek (pib->file, INT_PRESCALER_OFFSET, SEEK_SET) != INT_PRESCALER_OFFSET)
    	{
    		error (1, errno, "Can't seek %s", pib->name);
    	}
    	for (index = 0; index < INT_PRESCALER_LENGTH; index++)
    	{
    		uint32_t value;
    		if (read (pib->file, &value, sizeof (value)) != sizeof (value))
    		{
    			error (1, errno, "can't read %s", pib->name);
    		}
    		printf (" %6.3f %04d %6d ", INDEX_TO_FREQ (index), index, value);
    		while (value > scale)
    		{
    			printf ("#");
    			value -= scale;
    		}
    		printf ("\n");
    	}
    	return;
    }

    /*====================================================================*
     *
     *   void qca7x00Prescalers (struct _file_ * pib, unsigned scale);
     *
     *--------------------------------------------------------------------*/

    static void qca7x00Prescalers (struct _file_ * pib, unsigned scale)
    {
    	unsigned index = 0;
    	if (lseek (pib->file, QCA_PRESCALER_OFFSET, SEEK_SET) != QCA_PRESCALER_OFFSET)
    	{
    		error (1, errno, FILE_CANTSEEK, pib->name);
    	}
    	for (index = 0; index < QCA_PRESCALER_LENGTH; index++)
    	{
    		byte value;
    		if (read (pib->file, &value, sizeof (value)) != sizeof (value))
    		{
    			error (1, errno, "can't read %s", pib->name);
    		}
    		printf (" %6.3f %04d %6d ", INDEX_TO_FREQ (index), index, value);
    		while (value > scale)
    		{
    			printf ("#");
    			value -= scale;
    		}
    		printf ("\n");
    	}
    	return;
    }

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

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

    {
    	static char const * optv [] =
    	{
    		"s:",
    		"file [> stdout]",
    		"print PIB prescaler graph",
    		"s n\tscale",
    		(char const *) (0)
    	};
    	struct _file_ pib;
    	unsigned count = 0;
    	unsigned scale = 10;
    	signed c;
    	optind = 1;
    	while ((c = getoptv (argc, argv, optv)) != -1)
    	{
    		switch (c)
    		{
    		case 's':
    			scale = (unsigned)(uintspec (optarg, 1, UCHAR_MAX));
    			break;
    		default:
    			break;
    		}
    	}
    	argc -= optind;
    	argv += optind;
    	if (argc > 1)
    	{
    		error (1, ENOTSUP, "Only one file is permitted");
    	}
    	if ((argc) && (* argv))
    	{
    		pib.name = * argv;
    		if ((pib.file = open (pib.name, O_BINARY|O_RDONLY)) == -1)
    		{
    			error (1, errno, "Can't open %s", pib.name);
    		}
    		count = pibscalers (&pib);
    		if (count == PLC_CARRIERS)
    		{
    			qca7x00Prescalers (&pib, scale);
    		}
    		else if (count == AMP_CARRIERS)
    		{
    			error (1, ENOTSUP, "AR7x00 PIB Format");
    		}
    		else if (count == INT_CARRIERS)
    		{
    			int6x00Prescalers (&pib, scale);
    		}
    		else
    		{
    			error (1, ENOTSUP, "Unknown PIB Format");
    		}
    		close (pib.file);
    	}
    	return (0);
    }

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