52 lines
1.6 KiB
Perl
52 lines
1.6 KiB
Perl
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#! /usr/bin/perl -w
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# SPDX-License-Identifier: GPL-2.0
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# convert an Intel HEX file into a set of C records usable by the firmware
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# loading code in usb-serial.c (or others)
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# accepts the .hex file(s) on stdin, a basename (to name the initialized
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# array) as an argument, and prints the .h file to stdout. Typical usage:
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# perl ezusb_convert.pl foo <foo.hex >fw_foo.h
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my $basename = $ARGV[0];
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die "no base name specified" unless $basename;
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while (<STDIN>) {
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# ':' <len> <addr> <type> <len-data> <crc> '\r'
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# len, type, crc are 2-char hex, addr is 4-char hex. type is 00 for
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# normal records, 01 for EOF
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my($lenstring, $addrstring, $typestring, $reststring, $doscrap) =
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/^:(\w\w)(\w\w\w\w)(\w\w)(\w+)(\r?)$/;
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die "malformed line: $_" unless $reststring;
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last if $typestring eq '01';
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my($len) = hex($lenstring);
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my($addr) = hex($addrstring);
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my(@bytes) = unpack("C*", pack("H".(2*$len), $reststring));
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#pop(@bytes); # last byte is a CRC
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push(@records, [$addr, \@bytes]);
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}
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@sorted_records = sort { $a->[0] <=> $b->[0] } @records;
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print <<"EOF";
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/*
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* ${basename}_fw.h
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*
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* Generated from ${basename}.s by ezusb_convert.pl
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* This file is presumed to be under the same copyright as the source file
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* from which it was derived.
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*/
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EOF
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print "static const struct ezusb_hex_record ${basename}_firmware[] = {\n";
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foreach $r (@sorted_records) {
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printf("{ 0x%04x,\t%d,\t{", $r->[0], scalar(@{$r->[1]}));
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print join(", ", map {sprintf('0x%02x', $_);} @{$r->[1]});
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print "} },\n";
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}
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print "{ 0xffff,\t0,\t{0x00} }\n";
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print "};\n";
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