/*      $NetBSD: cyzfirm2h.c,v 1.13 2014/04/01 15:35:41 christos Exp $  */

/*-
* Copyright (c) 2000 Zembu Labs, Inc.
* All rights reserved.
*
* Author: Jason R. Thorpe <[email protected]>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
*    notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. All advertising materials mentioning features or use of this software
*    must display the following acknowledgement:
*      This product includes software developed by Zembu Labs, Inc.
* 4. Neither the name of Zembu Labs nor the names of its employees may
*    be used to endorse or promote products derived from this software
*    without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY ZEMBU LABS, INC. ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WAR-
* RANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DIS-
* CLAIMED.  IN NO EVENT SHALL ZEMBU LABS 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.
*/

/*
* This program converts a binary Cyclades-Z firmware file into a
* C header file for use in a device driver.
*/

#include <sys/cdefs.h>
__RCSID("$NetBSD: cyzfirm2h.c,v 1.13 2014/04/01 15:35:41 christos Exp $");

#include <sys/types.h>
#include <sys/mman.h>
#include <err.h>
#include <ctype.h>
#include <fcntl.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

static void     usage(void) __dead;
#ifdef DEBUG
#define MAXLINE 8
#else
#define MAXLINE 10
#endif

int
main(int argc, char *argv[])
{
       off_t in_len;
       u_char *in_ptr;
       FILE *out_file;
       char *include_name, *cp;
       int i;

       if (argc != 3)
               usage();

       i = open(argv[1], O_RDONLY, 0644);
       if (i < 0)
               err(1, "unable to open %s", argv[1]);

       out_file = fopen(argv[2], "w+");
       if (out_file == NULL)
               err(1, "unable to create %s", argv[2]);

       /*
        * Create the string used in the header file for multiple
        * inclusion protection.
        */
       include_name = strdup(argv[2]);
       if (include_name == NULL)
               err(1, "unable to allocate include name");

       for (cp = include_name; *cp != '\0'; cp++) {
               if (isalpha((unsigned char)*cp))
                       *cp = toupper((unsigned char)*cp);
               else if (*cp == '.')
                       *cp = '_';
       }

       in_len = lseek(i, 0, SEEK_END);
       if (in_len == (off_t) -1)
               err(1, "unable to determine length of input file");

       in_ptr = mmap(NULL, in_len, PROT_READ, MAP_FILE|MAP_SHARED,
           i, (off_t) 0);
       if (in_ptr == MAP_FAILED)
               err(1, "unable to mmap input file");
       (void) close(i);

       fprintf(out_file, "/*\t$""NetBSD""$\t*/\n\n");
       fprintf(out_file,
           "/*\n"
           " * Firmware for Cyclades Z series multiport serial boards.\n"
           " * Automatically generated from:\n"
           " *\n"
           " *\t%s\n"
           " */\n\n", argv[1]);
       fprintf(out_file, "#ifndef _%s_\n", include_name);
       fprintf(out_file, "#define\t_%s_\n\n", include_name);

       fprintf(out_file, "static const uint8_t cycladesz_firmware[] = {\n");

       i = 0;
       while (in_len != 0) {
               if (i == 0)
                       fprintf(out_file, "\t");
               if (*in_ptr == '@' && in_len > 4 &&
                   memcmp(in_ptr, "@(#)", 4) == 0)
                       fprintf(out_file, "0x%02x,", '_');
               else
                       fprintf(out_file, "0x%02x,", *in_ptr);
               in_ptr++;
               in_len--;
               i++;
               if (i == MAXLINE) {
#ifdef DEBUG
                       size_t j;
                       fprintf(out_file, "\t/* ");
                       for (j = 0; j < 8; j++) {
                               unsigned char c = (in_ptr - 8)[j];
                               fputc(isprint(c) ? c : '.', out_file);
                       }
                       fprintf(out_file, " */");
#endif
                       fprintf(out_file, "\n");
                       i = 0;
               } else if (in_len != 0) {
                       fprintf(out_file, " ");
               }
       }
       fprintf(out_file, "\n};\n\n");

       fprintf(out_file, "#endif /* _%s_ */\n", include_name);
       return 0;
}

__dead static void
usage(void)
{

       fprintf(stderr, "usage: %s infile outfile\n", getprogname());
       exit(1);
}