279 lines
10 KiB
Perl
279 lines
10 KiB
Perl
#!/usr/bin/perl
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#Generate a .c source that preinitializes a coffee file system
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#David Kopf <dak664@embarqmail.com> July 2009
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#For coffee file_header structure of
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#struct file_header {
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# coffee_page_t log_page;
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# uint16_t log_records;
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# uint16_t log_record_size;
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# coffee_page_t max_pages;
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# uint8_t deprecated_eof_hint;
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# uint8_t flags;
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# char name[COFFEE_NAME_LENGTH];
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# } __attribute__((packed));
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goto DEFAULTS;
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START:$version="1.0 dak";
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#Process options
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for($n=0;$n<=$#ARGV;$n++) {
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$arg=$ARGV[$n];
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if ($arg eq "-p") {
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$n++;$coffee_page_length=$ARGV[$n];
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} elsif ($arg eq "-s") {
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$n++;$coffee_sector_size=$ARGV[$n];
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} elsif ($arg eq "-t") {
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$n++;$coffee_page_t =$ARGV[$n];
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} elsif ($arg eq "-f") {
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$n++;$coffee_name_length=$ARGV[$n];
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} elsif ($arg eq "-S") {
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$n++;$sectionname=$ARGV[$n];
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} elsif ($arg eq "-c") {
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$complement=1;
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} elsif ($arg eq "-l") {
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$linkedlist=1;
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} elsif ($arg eq "-v") {
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print "avr-makecoffeedata Version $version\n";
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} elsif ($arg eq "-d") {
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$n++;$directory=$ARGV[$n];
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} elsif ($arg eq "-o") {
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$n++;$outputfile=$ARGV[$n];
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} else {
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DEFAULTS:
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#Set up defaults
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$coffee_page_length=256;
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$coffee_sector_size=256;
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$coffee_page_t=1;
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$coffee_name_length=16;
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$complement=0;
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$directory="";
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$outputfile="httpd-fsdata.c";
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$linkedlist=0;
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$sectionname=".coffeefiles";
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if (!$version) {goto START;}
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print "\n";
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print "Usage: avr-makecoffeedata <option(s)> <-d input_directory> <-o output_file>\n";
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print " Generates c source file to make a pre-initialized coffee file system\n";
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print " The default output file is $outputfile\n";
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print " The input directory structure is copied. If input_directory is specified\n";
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print " it becomes the root \"/\". If no input_directory is specified the first\n";
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print " subdirectory found in the current directory is used as the root.\n";
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print " WARNING : If the output file exists it will be overwritten without confirmation\n\n";
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print " Options are:\n";
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print " -p pagesize Page size in bytes (default $coffee_page_length)\n";
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print " -s sectorsize Sector size in bytes (default $coffee_sector_size)\n";
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print " -t page_t Number of bytes in coffee_page_t (1,2,or 4, default $coffee_page_t)\n";
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print " -f namesize File name field size in bytes (default $coffee_name_length)\n";
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print " -S section Section name (default $sectionname)\n";
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print " -c Complement the data, useful when flash is all 1s after erase\n";
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print " -l Append a linked list of the file starting addresses\n";
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print " -v Display the version number\n";
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exit;
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}
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}
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#printf "coffee_page_length=$coffee_page_length\n";
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#printf "coffee_page_t=$coffee_page_t\n";
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#printf "coffee_name_length=$coffee_name_length\n";
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#printf "complement=$complement\n";
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#printf "directory=$directory\n";
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#printf "outputfile=$outputfile\n";
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#printf "sectionname=$sectionname;
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if ($coffee_page_t==1) {
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$coffeemax=0xff;
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} elsif ($coffee_page_t==2) {
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$coffeemax=0xffff;
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} elsif ($coffee_page_t==4) {
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$coffeemax=0xffffffff;
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} else {
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die "Unsupported coffee_page_t $coffee_page_t\n";
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}
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$coffee_header_length=2*$coffee_page_t+$coffee_name_length+6;
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$null="0x00";if ($complement) {$null="0xff";}
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#$tab="/t"; #optional tab string
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$tab=" "; #optional tabs or spaces at beginning of line, e.g. "\t\t"
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if (!open(OUTPUT, "> $outputfile")) {die "Aborted: Could not create output file $outputfile";}
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#awkward but could not figure out how to compare paths later unless the file exists -- dak
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print(OUTPUT "\n");
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close($outputfile);
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use Cwd qw(abs_path);
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if (!open(OUTPUT, "> $outputfile")) {die "Aborted: Could not create output file $outputfile";}
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$outputfile=abs_path($outputfile);
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if ($directory eq "") {
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opendir(DIR, ".");
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@files = grep { !/^\./ && !/(CVS|~)/ } readdir(DIR);
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closedir(DIR);
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foreach $file (@files) {
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if(-d $file && $file !~ /^\./) {
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$directory=$file;
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break;
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}
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}
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}
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if ($directory eq "") {die "Aborted: No subdirectory in current directory";}
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if (!chdir("$directory")) {die "Aborted: Directory \"$directory\" does not exist!";}
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print "Processing directory $directory as root of coffee file system\n";
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opendir(DIR, ".");
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@files = grep { !/^\./ && !/(CVS|~)/ } readdir(DIR);
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closedir(DIR);
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foreach $file (@files) {
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if(-d $file && $file !~ /^\./) {
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print "Adding subdirectory $file\n";
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opendir(DIR, $file);
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@newfiles = grep { !/^\./ && !/(CVS|~)/ } readdir(DIR);
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closedir(DIR);
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# printf "Adding files @newfiles\n";
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@files = (@files, map { $_ = "$file/$_" } @newfiles);
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next;
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}
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}
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print "Writing to $outputfile\n";
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print(OUTPUT "/**************Generated by /tools/avr-makecoffeedata*****************/\n");
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print(OUTPUT "/*For coffee filesystem of sector size $coffee_sector_size and header length $coffee_header_length bytes*/\n");
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$n=0;$coffeesize=0;$coffeesectors=0;
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foreach $file (@files) {if(-f $file) {
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if (length($file)>($coffee_name_length-1)) {die "Aborted: File name $file is too long";}
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if (abs_path("$file") eq abs_path("$outputfile")) {
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print "Skipping $outputfile for recursive input\n";
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next;
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}
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print "Adding $file\n";
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open(FILE, $file) || die "Aborted: Could not open file $file\n";
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if (grep /.png/,$file) {binmode FILE;}
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if (grep /.jpg/,$file) {binmode FILE;}
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if (grep /.gif/,$file) {binmode FILE;}
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$file =~ s-^-/-;
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$fvar = $file;
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$fvar =~ s-/-_-g;
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$fvar =~ s-\.-_-g;
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$file_length= -s FILE;
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$coffee_sectors=int(($coffee_header_length+$file_length+$coffee_sector_size-1)/$coffee_sector_size);
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# $coffee_sectors=sprintf("%.0f",($coffee_header_length+$file_length+$coffee_sector_size-1)/$coffee_sector_size)-1;
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$coffee_length=$coffee_sectors*$coffee_sector_size;
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$flen[$n]=$file_length;
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$clen[$n]=$coffee_length;
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$n++;$coffeesectors+=$coffee_sectors;$coffeesize+=$coffee_length;
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if ($coffeesectors>$coffeemax) {
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print "Warning: sector number $coffeesectors overflows allocated sector size in coffee header\n";
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}
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print(OUTPUT "\n__attribute__ ((section (\"$sectionname\")))\n");
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print(OUTPUT "volatile const char data".$fvar."[$coffee_length] = {\n");
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print(OUTPUT "$tab/* $file */\n$tab ");
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#--------------------Header-----------------------------
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#log_page
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for($j=0;$j<$coffee_page_t;$j++) {print (OUTPUT "$null, ");}
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#log_records, log_record_size
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for($j=0;$j<4;$j++) {print (OUTPUT "$null, ");}
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#max_pages
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if ($complement) {$coffee_sectors=$coffee_sectors^0xffffffff;}
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if ($coffee_page_t==1) {
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printf(OUTPUT "0x%2.2x, ",($coffee_sectors )&0xff);
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} elsif ($coffee_page_t==2) {
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printf(OUTPUT "0x%2.2x, ",($coffee_sectors>> 8)&0xff);
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printf(OUTPUT "0x%2.2x, ",($coffee_sectors )&0xff);
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} elsif ($coffee_page_t==4) {
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printf(OUTPUT "0x%2.2x, ",($coffee_sectors>>24)&0xff);
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printf(OUTPUT "0x%2.2x, ",($coffee_sectors>>16)&0xff);
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printf(OUTPUT "0x%2.2x, ",($coffee_sectors>> 8)&0xff);
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printf(OUTPUT "0x%2.2x, ",($coffee_sectors )&0xff);
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}
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if ($complement) {$coffee_sectors=$coffee_sectors^0xffffffff;}
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#eof hint and flags
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if ($complement) {
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print(OUTPUT "0xff, 0xfc,\n$tab");
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} else {
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print(OUTPUT "0x00, 0x03,\n$tab");
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}
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#file name
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for($j = 0; $j < length($file); $j++) {
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$temp=unpack("C", substr($file, $j, 1));
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if ($complement) {$temp=$temp^0xff;}
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printf(OUTPUT " %#02.2x,", $temp);
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}
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for(; $j < $coffee_name_length; $j++) {printf(OUTPUT " $null,");}
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print(OUTPUT "\n$tab");
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#------------------File Data---------------------------
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$coffee_length-=$coffee_header_length;
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$i = 0;
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while(read(FILE, $data, 1)) {
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$temp=unpack("C", $data);
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if ($complement) {$temp=$temp^0xff;}
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printf(OUTPUT " 0x%2.2x,", $temp);
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$i++;$coffee_length--;
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if($i == 10) {
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print(OUTPUT "\n$tab");
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$i = 0;
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}
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}
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while (--$coffee_length>1) {
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print (OUTPUT " $null,");
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if($i++ == 9) {
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print(OUTPUT "\n$tab");
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$i = 0;
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}
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}
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print (OUTPUT " $null};\n");
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close(FILE);
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push(@fvars, $fvar);
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push(@pfiles, $file);
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}}
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if ($linkedlist) {
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#-------------------httpd_fsdata_file links-------------------
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#The non-coffee PROGMEM flash file system for the Raven webserver uses a linked flash list as follows:
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print(OUTPUT "\n\n/* Structure of linked list (all offsets relative to start of section):\n");
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print(OUTPUT "struct httpd_fsdata_file {\n");
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print(OUTPUT "$tab const struct httpd_fsdata_file *next; //actual flash address of next link\n");
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print(OUTPUT "$tab const char *name; //offset to coffee file name\n");
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print(OUTPUT "$tab const char *data; //offset to coffee file data\n");
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print(OUTPUT "$tab const int len; //length of file data\n");
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print(OUTPUT "#if HTTPD_FS_STATISTICS == 1 //not enabled since list is in PROGMEM\n");
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print(OUTPUT "$tab uint16_t count; //storage for file statistics\n");
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print(OUTPUT "#endif\n");
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print(OUTPUT "}\n*/\n");
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# Note flash addresses above 0xffff require 32 bit pointers using pgm_read_byte_far,
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# and the coffee file system is above that. So the addresses start from 0 which
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# allows a 64K file system. The flash starting address is added in the read routine.
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print(OUTPUT "\n#define HTTPD_FS_ROOT file$fvars[$i - 1]\n\n");
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for($i = 0; $i < @fvars; $i++) {
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$file = $pfiles[$i];
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$fvar = $fvars[$i];
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if($i == 0) {
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$prevfile = "NULL";
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$data_offset=0;
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} else {
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$data_offset=$data_offset+$clen[$i-1];
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$prevfile = "file" . $fvars[$i - 1];
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}
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$filename_offset=$data_offset+6+2*$coffee_page_t;
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$coffee_offset=$data_offset+$coffee_header_length;
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if ($coffee_offset>0xffff) {print "Warning : Linked list offset field overflow\n";}
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print(OUTPUT "const struct httpd_fsdata_file");
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for ($t=length($file);$t<16;$t++) {print(OUTPUT " ")};
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# for AVR, add PROGMEM here
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print(OUTPUT " file".$fvar."[] PROGMEM={{");
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for ($t=length($prevfile);$t<20;$t++) {print(OUTPUT " ")};
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print(OUTPUT "$prevfile, ");
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printf(OUTPUT "(const char *)0x%4.4x, ",$filename_offset);
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printf(OUTPUT "(const char *)0x%4.4x, ",$coffee_offset);
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printf(OUTPUT "%5u}};\n",$flen[$i]);
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}
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print(OUTPUT "\n#define HTTPD_FS_NUMFILES $i\n");
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}
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print "All done, preallocated coffee files occupy $coffeesize bytes\n";
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