mdiogen.c
Author: cmaier@cmassoc.net

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

    /*====================================================================*"
     *
     *   mdiogen.c -
     *
     *
     *   Contributor(s):
     *      Charles Maier <cmaier@qca.qualcomm.com>
     *      Nathaniel Houghton <nhoughto@qca.qualcomm.com>
     *
     *--------------------------------------------------------------------*/

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

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

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

    #include "../tools/number.h"
    #include "../tools/memory.h"
    #include "../tools/endian.h"
    #include "../tools/error.h"
    #include "../mdio/mdio.h"

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

    #ifndef MAKEFILE
    #include "../tools/error.c"
    #endif

    /*====================================================================*
     *   program variables;
     *--------------------------------------------------------------------*/

    const char * program_name;

    /*====================================================================*
     *
     *   void regview (void const * memory, uint16_t offset, uint16_t length, FILE *fp);
     *
     *   memory.h
     *
     *   print memory as a binary dump showing absolute memory offsets and
     *   16-bit binary register maps; sample output looks like:
     *
     *      ADDR DATA 5432-1098-7654-3210
     *      0000 0000 0000-0000-0000-0000
     *      0002 0000 0000-0000-0000-0000
     *      0004 0000 0000-0000-0000-0000
     *      0008 0000 0000-0000-0000-0000
     *      0010 0000 0000-0000-0000-0000
     *
     *
     *--------------------------------------------------------------------*/

    static void regview (void const * memory, uint16_t offset, uint16_t extent, FILE *fp)

    {
    	uint16_t * origin = (uint16_t *)(memory);
    	printf ("ADDR DATA 5432-1098-7654-3210\n");
    	while (extent >= sizeof (* origin))
    	{
    		signed bit = sizeof (* origin) << 3;
    		printf ("%04u ", offset);
    		printf ("%04X ", LE16TOH (*origin));
    		while (bit--)
    		{
    			putc (((* origin >> bit) & 1)? '1': '0', fp);
    			if ((bit) && !(bit%4))
    			{
    				putc ('-', fp);
    			}
    		}
    		putc ('\n', fp);
    		offset += sizeof (* origin);
    		extent -= sizeof (* origin);
    		origin++;
    	}
    	return;
    }

    /*====================================================================*
     *
     *   int main (int argc, const char * argv []);
     *
     *   this is a basic program that produces an MDIO program block
     *   using macros defined in mdio.h; the output filename is fixed;
     *
     *   declare your MDIO program by editing array program [] based on
     *   the MDIO program rules defined in the Atheros PLC Firmware TRM
     *   under the description of the VS_MOD_OP;
     *
     *
     *--------------------------------------------------------------------*/

    #define MDIO_PROGRAM "mdio.bin"

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

    {
    	uint16_t program [] =
    	{

    #if 1

    		MDIO16_START (1, 0, 9),
    		MDIO16_INSTR (1, 1, 0x18, 0x00, 2),
    		0x0000,
    		0xFFFF,
    		MDIO16_INSTR (1, 1, 0x10, 0x16, 2),
    		0x003F,
    		0xFFFF,
    		MDIO16_INSTR (1, 1, 0x10, 0x17, 2),
    		0x7E3F,
    		0xFFFF,
    		MDIO16_INSTR (1, 1, 0x18, 0x00, 2),
    		0x0000,
    		0xFFFF,
    		MDIO16_INSTR (1, 1, 0x10, 0x02, 2),
    		0x0700,
    		0xFFFF,
    		MDIO16_INSTR (1, 1, 0x10, 0x03, 2),
    		0x0000,
    		0xFFFF,
    		MDIO16_INSTR (1, 1, 0x18, 0x00, 2),
    		0x0000,
    		0xFFFF,
    		MDIO16_INSTR (1, 1, 0x14, 0x00, 2),
    		0x007D,
    		0xFFFF,
    		MDIO16_INSTR (1, 1, 0x14, 0x01, 2),
    		0x0000,
    		0xFFFF,

    #else

    		MDIO16_START (1, 0, 24),
    		MDIO32_INSTR (0x2c, 0x7e3f003f, 0xffffffff),
    		MDIO32_INSTR (0x8, 0x500, 0xffffffff),
    		MDIO32_INSTR (0x100, 0x7d, 0xffffffff),
    		MDIO32_INSTR (0x30, 0x19f005f2, 0xffffffff),
    		MDIO32_INSTR (0x200, 0x7d, 0xffffffff),
    		MDIO32_INSTR (0x300, 0x7d, 0xffffffff),
    		MDIO32_INSTR (0x400, 0x7d, 0xffffffff),
    		MDIO32_INSTR (0x500, 0x7d, 0xffffffff),

    #endif

    	};
    	signed fd;
    	program_name = * argv;
    	if (--argc)
    	{
    		error (1, ECANCELED, "Too many command line arguments");
    	}
    	regview (&program, 0, sizeof (program), stdout);
    	if ((fd = open (MDIO_PROGRAM, O_CREAT|O_WRONLY|O_TRUNC, S_IRWXU | S_IRGRP | S_IROTH)) == -1)
    	{
    		error (1, errno, "Can't open %s", MDIO_PROGRAM);
    	}
    	if (write (fd, program, sizeof (program)) != sizeof (program))
    	{
    		unlink (MDIO_PROGRAM);
    		error (1, errno, "Can't write %s", MDIO_PROGRAM);
    	}
    	if (sizeof (program) % sizeof (uint32_t))
    	{
    		uint32_t zeros = 0;
    		ssize_t count = sizeof (uint32_t) - sizeof (program) % sizeof (uint32_t);
    		if (write (fd, &zeros, count) != count)
    		{
    			unlink (MDIO_PROGRAM);
    			error (1, errno, "Can't write %s", MDIO_PROGRAM);
    		}
    	}
    	close (fd);
    	return (0);
    }

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