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

    /*====================================================================*
     *
     *   psout.c - Export PIB Prescalers;
     *
     *
     *   Contributor(s):
     *	Charles Maier <cmaier@qca.qualcomm.com>
     *
     *--------------------------------------------------------------------*/

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

    #include <math.h>
    #include <stdio.h>
    #include <string.h>
    #include <unistd.h>
    #include <errno.h>
    #include <sys/stat.h>

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

    #include "../tools/getoptv.h"
    #include "../tools/number.h"
    #include "../tools/chars.h"
    #include "../tools/types.h"
    #include "../tools/error.h"
    #include "../tools/files.h"
    #include "../tools/endian.h"
    #include "../pib/pib.h"
    #include "../plc/plc.h"

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

    #ifndef MAKEFILE
    #include "../tools/getoptv.c"
    #include "../tools/putoptv.c"
    #include "../tools/version.c"
    #include "../tools/checksum32.c"
    #include "../tools/fdchecksum32.c"
    #include "../tools/error.c"
    #endif

    #ifndef MAKEFILE
    #include "../pib/pibfile.c"
    #include "../pib/pibfile1.c"
    #include "../pib/pibfile2.c"
    #include "../pib/pibscalers.c"
    #endif

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

    #define PSOUT_VERBOSE (1 << 0)
    #define PSOUT_SILENCE (1 << 1)

    /*====================================================================*
     *
     *   void ar7x00Prescalers (struct _file_ * pib);
     *
     *--------------------------------------------------------------------*/

    static void ar7x00Prescalers (struct _file_ * pib)

    {

    #if 0

    	uint32_t value;
    	uint32_t temp;
    	uint32_t buffer = 0;
    	unsigned bits = 0;
    	unsigned index = 0;
    	if (lseek (pib->file, AMP_PRESCALER_OFFSET, SEEK_SET) != AMP_PRESCALER_OFFSET)
    	{
    		error (1, errno, FILE_CANTSEEK, pib->name);
    	}

    /* no dependency on math lib */

    	while (index < AMP_CARRIERS)
    	{
    		if (read (pib->file, &temp, sizeof (temp)) != sizeof (temp))
    		{
    			error (1, errno, FILE_CANTREAD, pib->name);
    		}
    		temp = LE32TOH (temp);
    		buffer |= (temp << bits);
    		if (bits == 0)
    		{
    			bits = 8 * sizeof (buffer);
    		}
    		else
    		{
    			if (lseek (pib->file, -1, SEEK_CUR) == -1)
    			{
    				error (1, errno, "could not seek backwards");
    			}
    			bits += 8 * (sizeof (buffer) - 1);
    		}
    		while (bits >= 10)
    		{
    			value = (buffer & 0x000003FF);
    			printf ("%08d %08X\n", index, value);
    			buffer = buffer >> 10;
    			++index;
    			bits -= 10;
    		}
    	}

    #elif 0

    	uint32_t value;
    	uint32_t temp;
    	uint32_t buffer = 0;
    	unsigned bits = 0;
    	unsigned index = 0;
    	if (lseek (pib->file, AMP_PRESCALER_OFFSET, SEEK_SET) != AMP_PRESCALER_OFFSET)
    	{
    		error (1, errno, FILE_CANTSEEK, pib->name);
    	}

    /* more generic code, but requires math lib, add -lm to LFLAGS */

    	while (index < AMP_CARRIERS)
    	{
    		if (read (pib->file, &temp, sizeof (temp)) != sizeof (temp))
    		{
    			error (1, errno, FILE_CANTREAD, pib->name);
    		}
    		temp = LE32TOH (temp);
    		buffer |= (temp << bits);
    		if (lseek (pib->file, (off_t)(-ceil (bits / 8.0)), SEEK_CUR) == -1)
    		{
    			error (1, errno, "could not seek backwards");
    		}
    		bits += 8 * (sizeof (buffer) - (unsigned)(ceil (bits / 8.0)));
    		while (bits >= 10)
    		{
    			value = (buffer & 0x000003FF);
    			printf ("%08d %08X\n", index, value);
    			buffer = buffer >> 10;
    			++index;
    			bits -= 10;
    		}
    	}

    #else

    	uint16_t upper;
    	uint16_t lower;
    	unsigned index = 0;
    	byte buffer [AMP_PRESCALER_LENGTH];
    	byte * p = buffer;
    	if (lseek (pib->file, AMP_PRESCALER_OFFSET, SEEK_SET) != AMP_PRESCALER_OFFSET)
    	{
    		error (1, errno, FILE_CANTSEEK, pib->name);
    	}
    	if (read (pib->file, buffer, sizeof (buffer)) != sizeof (buffer))
    	{
    		error (1, errno, FILE_CANTREAD, pib->name);
    	}

    /*
     * |00000000|00111111|11112222|22222233|33333333|
     * |01234567|89012345|67890123|45678901|23456789|
     */

    	while (index < AMP_CARRIERS)
    	{
    		lower = (*p++ & 0xFF) >> 0;
    		upper = (*p & 0x03) << 8;
    		printf ("%08d %08X\n", index++, upper | lower);
    		lower = (*p++ & 0xFC) >> 2;
    		upper = (*p & 0x0F) << 6;
    		printf ("%08d %08X\n", index++, upper | lower);
    		lower = (*p++ & 0xF0) >> 4;
    		upper = (*p & 0x3F) << 4;
    		printf ("%08d %08X\n", index++, upper | lower);
    		lower = (*p++ & 0xC0) >> 6;
    		upper = (*p++ & 0xFF) << 2;
    		printf ("%08d %08X\n", index++, upper | lower);
    	}

    #endif

    	return;
    }

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

    static void int6x00Prescalers (struct _file_ * pib)

    {
    	unsigned index = 0;
    	if (lseek (pib->file, INT_PRESCALER_OFFSET, SEEK_SET) != INT_PRESCALER_OFFSET)
    	{
    		error (1, errno, FILE_CANTSEEK, pib->name);
    	}
    	while (index < INT_CARRIERS)
    	{
    		uint32_t value;
    		if (read (pib->file, &value, sizeof (value)) != sizeof (value))
    		{
    			error (1, errno, FILE_CANTREAD, pib->name);
    		}
    		printf ("%08d %08X\n", index++, LE32TOH (value));
    	}
    	return;
    }

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

    static void qca7x00Prescalers (struct _file_ * pib)
    {
    	unsigned index = 0;
    	byte buffer [QCA_PRESCALER_LENGTH];
    	byte * p = buffer;
    	if (lseek (pib->file, QCA_PRESCALER_OFFSET, SEEK_SET) != QCA_PRESCALER_OFFSET)
    	{
    		error (1, errno, FILE_CANTSEEK, pib->name);
    	}
    	if (read (pib->file, buffer, sizeof (buffer)) != sizeof (buffer))
    	{
    		error (1, errno, FILE_CANTREAD, pib->name);
    	}

    	while (index < PLC_CARRIERS)
    	{
    		printf ("%08d %08x\n", index++, *p++);
    	}
    }

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

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

    {
    	static char const * optv [] =
    	{
    		"",
    		"pibfile [> scalers]",
    		"Export PIB Prescalers",
    		(char const *) (0)
    	};
    	struct _file_ pib;
    	unsigned scalers;
    	signed c;
    	optind = 1;
    	while ((c = getoptv (argc, argv, optv)) != -1)
    	{
    		switch ((char) (c))
    		{
    		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);
    		}
    		if (pibfile (&pib))
    		{
    			error (1, errno, "Bad PIB file: %s", pib.name);
    		}
    		scalers = pibscalers (&pib);
    		if (scalers == PLC_CARRIERS)
    		{
    			qca7x00Prescalers (&pib);
    		}
    		else if (scalers == AMP_CARRIERS)
    		{
    			ar7x00Prescalers (&pib);
    		}
    		else if (scalers == INT_CARRIERS)
    		{
    			int6x00Prescalers (&pib);
    		}
    		else
    		{
    			error (1, ENOTSUP, "Unexpected number of carriers");
    		}
    		close (pib.file);
    	}
    	return (0);
    }

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