kerneltest/e32utils/hcrscripts/hcrdat.pm
changeset 149 d9f1e5bfe28c
parent 0 a41df078684a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32utils/hcrscripts/hcrdat.pm	Thu Jun 10 11:48:01 2010 +0100
@@ -0,0 +1,378 @@
+#!perl -w
+#
+# Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+# All rights reserved.
+# This component and the accompanying materials are made available
+# under the terms of the License "Eclipse Public License v1.0"
+# which accompanies this distribution, and is available
+# at the URL "http://www.eclipse.org/legal/epl-v10.html".
+#
+# Initial Contributors:
+# Nokia Corporation - initial contribution.
+#
+# Contributors:
+#
+# Description:
+#
+use strict;
+
+#use Math::BigInt;
+
+#
+# Perl module to create and maintain feature manager data files.
+# You can either set up the information programmatically or else load up
+# information from a pre-existing feature data file and then modify it. You
+# can also save the information to a file (in feature manager dataset format).
+#
+# This class maintains header information plus two arrays, one containing
+# feature flag information and the other containing default supported range
+# information. Those are themselves objects and have their own accessor
+# methods.
+#
+
+package HCRdat;
+
+use HCRrec;
+
+
+#
+# n e w
+#
+# Create a new HCRdat object. For example 'my $hd = HCRdat->new("filea");
+#
+sub new
+{
+	my $arg = shift;
+	my $fn = shift;
+	my $class = ref($arg) || $arg;
+	my $self = {
+			        fingerprint => "HCRf",  # 4 bytes wide.
+					fileversion => 1,       # 2 bytes.
+					fileflags => 0x0001,  # 2 bytes.
+					numrecords => 0,      # 4 bytes. 
+					lsdoffset => 0,       # 4 bytes. 
+					lsdsize => 0,         # 4 bytes.
+				    packprefix => "V",    # Changed with endian-ness.
+					                      # Used to create binary strings.
+
+					settingrecords => [],  # Array of objects
+					lsd => [],             # Array of bytes
+	           };
+    bless $self, $class;
+	return $self;
+}
+
+
+# Print to STDOUT the header information we have.
+sub ShowHeader
+{
+	my $self = shift;
+	return undef unless(ref($self));
+
+	# Get header information..
+	my $typefield = $self->TypeField();
+	my $fileversion = $self->FileVersion();
+	my $fileflags = $self->FileFlags();
+	my $numrecords = $self->NumRecords();
+	my $lsdoffset = $self->LsdOffset();
+	my $lsdsize = $self->LsdSize();
+	
+	# Display it in English.
+	print "  FINGERPRINTF: '$typefield'\n";
+	print "  FILEVERSION: '$fileversion'\n";
+	print "  FILEFLAGS: '$fileflags'\n";
+	print "  NUMRECORDS: '$numrecords'\n";
+	print "  LSDOFFSET: '$lsdoffset'\n";
+    print "  LSDSIZE: '$lsdsize'\n";
+
+	return(0);
+}
+
+# Get/Set the endian-ness we want. Changes the 'packprefix' member which is
+# used in the creation of binary data.
+sub Endian
+{
+	my $self = shift;
+	return undef unless(ref($self));
+	my $arg = shift;
+	return $self->{endian} unless(defined($arg));
+	if($arg =~ m/(LE|BE)/i)
+	{
+		my $endian = uc($1);
+		$self->{endian} = $endian;
+		# Used by 'pack' to generate binary strings.
+		$self->{packprefix} = "V" if($endian eq "LE");
+		$self->{packprefix} = "N" if($endian eq "BE");
+	}
+	return $self->{endian};
+}
+
+# This is the fingerprint.
+sub TypeField
+{
+	my $self = shift;
+	return undef unless(ref($self));
+	my $arg = shift;
+	$self->{fingerprint} = $arg if(defined($arg));
+	return $self->{fingerprint};
+}
+
+sub FileVersion
+{
+	my $self = shift;
+	return undef unless(ref($self));
+	my $arg = shift;
+	# Should we be testing for a numeric value?
+	$self->{fileversion} = $arg if(defined($arg));
+	return $self->{fileversion};
+}
+
+sub FileFlags
+{
+	my $self = shift;
+	return undef unless(ref($self));
+	my $arg = shift;
+	$self->{fileflags} = $arg if(defined($arg));
+	return $self->{fileflags};
+}
+
+# How many feature flag objects have we got?
+sub NumRecords
+{
+	my $self = shift;
+	return undef unless(ref($self));
+	my $arg = shift;
+	$self->{numrecords} += $arg if(defined($arg));
+	return $self->{numrecords};
+}
+
+
+sub LsdOffset
+{
+	my $self = shift;
+	return undef unless(ref($self));
+	my $arg = shift;
+	$self->{lsdoffset} = $arg if(defined($arg));
+	return $self->{lsdoffset};
+}
+
+sub LsdSize
+{
+	my $self = shift;
+	return undef unless(ref($self));
+	my $arg = shift;
+	$self->{lsdsize} = $arg if(defined($arg));
+	return $self->{lsdsize};
+}
+
+# Create a binary string containing the header information for the
+# feature manager data file based on the various fields in this object.
+sub CreateBinaryHeader
+{
+	my $self = shift;
+	return undef unless(ref($self));
+	my $hdrstring;
+
+	# Get the letter for packing information with 'pack' into a binary form.
+	my $pack16 = lc($self->{packprefix});
+	my $pack32 = uc($self->{packprefix});
+	
+	# Get header information..
+	my $typefield = $self->TypeField();
+	my $fileversion = $self->FileVersion();
+	my $fileflags = $self->FileFlags();
+	my $numrecords = $self->NumRecords();
+	my $lsdoffset = $self->LsdOffset();
+	my $lsdsize = $self->LsdSize();
+
+	# Write the 'type' field out. This is 'feat'. Would this be different on
+	# big-endian systems?
+	$hdrstring = $typefield;
+
+	# Now the file version number. A 16-bit value.. Will this cause trouble
+	# if the shifted value is signed?
+	$hdrstring .= pack($pack16 . "1", $fileversion);
+
+	# Now the file flags. Another 16-bit value..
+	$hdrstring .= pack($pack16 . "1", $fileflags);
+
+	# Now the number of listed features - a 32-bit value.
+	$hdrstring .= pack($pack32 . "1", $numrecords);
+
+	# Now the number of listed features - a 32-bit value.
+	$hdrstring .= pack($pack32 . "1", $lsdoffset);
+
+	# Now the number of listed features - a 32-bit value.
+	$hdrstring .= pack($pack32 . "1", $lsdsize);
+
+	# Now the 3 reserved words
+	$hdrstring .= pack($pack32 . "3", (0, 0, 0));
+
+	return $hdrstring;
+}
+
+sub CreateImageHdr
+{
+	my $self = shift;
+	return undef unless(ref($self));
+	#my $partid = shift;
+	#return -1 unless(defined($partid));
+
+	# Add fingerprint, 1st reserved word and format version
+	my $imghdr = pack "V4", (0x5F524348, 0x54524150, 0x00000000, 0x00000001);
+	# Add space for image size, timestamp, 2nd reserved word
+	$imghdr .= pack "V3", (0x00000000, time, 0x00000000);
+	# Add space for payload checksum, HCR Payload constants: UID and 0x0 flags
+    $imghdr .= pack "V3", (0x00000000, 0x10286AB8, 0x00000000);
+    #Reserved space
+    $imghdr .= pack "x216", (0x00000000);
+ 
+    return $imghdr;
+}
+
+sub WriteToImage
+{
+	my $self = shift;
+	return undef unless(ref($self));
+	my $imgfile = shift;
+	return -1 unless(defined($imgfile));
+	my $datfile = shift;
+	return -1 unless(defined($datfile));
+	#my $partid = shift;
+	#return -1 unless(defined($partid));
+	my $rc = 0;
+	
+    open IMGFILE, "> $imgfile" or die "Couldn't open file '$imgfile' for writing.\n";
+	binmode IMGFILE;
+   
+ 	syswrite(IMGFILE, $self->CreateImageHdr(), 256);	
+ 	
+    open DATFILE, "$datfile" or die "Couldn't open file '$datfile' for reading.\n";
+	binmode DATFILE;
+	# print FILE $self->BinaryContent();
+	
+    #my $wordsum = 0x1200000000;
+    #my $wordsum = Math::BigInt->new("0x0220100123");
+    #printf("test: %x\n", $wordsum->external();
+
+	my $imgsize = 256;
+	my $word;
+	printf("-reading image:\n")  if ($mhd::otrace);
+	while (sysread (DATFILE, $word, 4)) {
+	    #printf ("%08x ",$word)  if ($mhd::otrace);
+        my $iword = unpack("V" , $word);
+	    printf ("%08x ",$iword)  if ($mhd::otrace);
+        $rc = syswrite (IMGFILE, $word, 4);
+        die "error: ($rc) failed to write datfile word into imgfile.\n" if ($rc != 4);
+	    #$wordsum->badd($iword);
+        $imgsize += 4;
+	    print "\n" if (($mhd::otrace) && ($imgsize%16==0));
+        }
+    print "\n" if ($mhd::otrace);
+    # ordsum: 0x". $wordsum ."\n" if ($mhd::otrace);
+	my $checksum = 0x12345678;
+	close DATFILE;
+	
+	printf("-image size: %d, checksum: 0x%08x", $imgsize, $checksum) if ($mhd::otrace);
+	
+	$rc = sysseek(IMGFILE, 16, 0);
+	die "error: ($rc) failed to seek in image to write header.\n" if ($rc != 16);
+
+	# Write out the image size	
+	my $imginfo1 = pack "V1", ($imgsize);
+	$rc = syswrite(IMGFILE, $imginfo1, 4);
+	die "error: ($rc) failed to write image size/checksum to image header.\n" if ($rc != 4);
+
+	$rc = sysseek(IMGFILE, 28, 0);
+	die "error: ($rc) failed to seek in image to write header.\n" if ($rc != 28);
+	
+	# Write out the image checksum 
+	my $imginfo2 = pack "V1", ($checksum);
+	$rc = syswrite(IMGFILE, $imginfo2, 4);
+	die "error: ($rc) failed to write image size/checksum to image header.\n" if ($rc != 4);
+  
+	close IMGFILE; 	
+	
+    return 0;
+}
+
+# Writes the binary file specified as an argument with the content of this
+# and contained feature flag and dsr objects.
+sub WriteToFile
+{
+	my $self = shift;
+	return undef unless(ref($self));
+	my $file = shift;
+	return undef unless(defined($file));
+    open FILE, "> $file" or die "Couldn't open file '$file' for writing.\n";
+	binmode FILE;
+	print FILE $self->BinaryContent();
+	
+	close FILE;
+	return 0;
+}
+
+
+# Create the binary equivalent of the internal data and return it as a
+# string.
+sub BinaryContent
+{
+	my $self = shift;
+	return undef unless(ref($self));
+
+    # Get the feature flag entries.. This is an array reference.
+	# For each one append the binary representation of the information
+	# contained.
+	my $records = "";
+    my $lsd = "";
+   	my $ffs_ref = $self->SettingRecords();
+	my $ff;
+
+    my $count = 0;
+	foreach $ff (@$ffs_ref)
+	{
+	    $count++;
+	    printf("-encoding record: %04d (0x%08x:%04d)\n", $count, $ff->CUID(), $ff->EID());
+		$records .= $ff->GetRecHdrBinary(length ($lsd));
+	    my $stype = $ff->Type();
+    	if (($stype & 0xffff0000) && ($ff->Length() > 0)) {
+		    $lsd .= $ff->GetRecLsdBinary();
+            }
+	}
+
+    $self->LsdOffset(32+length ($records));     # header size 32
+    $self->LsdSize(length ($lsd));
+    
+	my $header = $self->CreateBinaryHeader();
+
+	return $header . $records . $lsd;
+}
+
+# Return a reference to the 'feature flags' array.
+sub SettingRecords
+{
+	my $self = shift;
+	return undef unless(ref($self));
+	return $self->{settingrecords};
+}
+
+# Add a Feature Flag object. Perhaps there should be code to check if we
+# already know about this feature flag. (i.e check the uid against the ones
+# we have).
+sub AddSettingRecord
+{
+	my $self = shift;
+	return undef unless(ref($self));
+	my $arg = shift;
+	die "panic: method 'AddSettingRecord' requires a 'HCRrec' object as argument.\n"
+   	    unless(ref($arg) eq  "HCRrec");
+   	
+	push @{$self->SettingRecords()}, $arg;
+	$self->NumRecords(1);
+	
+    return 0;
+}
+
+
+1;
+