new Sony Vaio eeprom decoder from

Jean Delvare <delvare@ensicaen.ismra.fr>


git-svn-id: http://lm-sensors.org/svn/lm-sensors/trunk@1309 7894878c-1315-0410-8ee3-d5d059ff63e0

CHANGES

@@ -39,6 +39,7 @@ ask CVS about it:
                fan -> fan1; fix temp2 limit writes
   Module pcf8591: new
   Module w83781d: Add W83697HF support
+  Program decode-vaio.pl: new
   Program i2cdump: Add i2c block read capability (requires i2c-2.6.3)
   Program init/sensors: New SysV init script
   Program mkpatch.pl: Add support for fscscy, add more help entries

doc/progs

@@ -77,6 +77,10 @@ see useful_addresses.html.
   It will only work for the installed eeprom module from the src/ directory,
   not for the old one in the i2c/drivers/ directory.
 
+* prog/eeprom/decode-vaio.pl (written in Perl 5, not installed)
+  This program decodes the information in a Sony Vaio laptop
+  identification eeprom at 0x57.
+
 * prog/eepromer/eepromer (written in C, not installed)
   This program reads and writes eeproms.
   Danger: Do not use this to write your DRAM DIMM eeproms.

prog/eeprom/decode-vaio.pl

@@ -0,0 +1,132 @@
+#!/usr/bin/perl -w
+#
+# Copyright 2002 Jean Delvare <khali@linux-fr.org>
+#
+#    This program is free software; you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License as published by
+#    the Free Software Foundation; either version 2 of the License, or
+#    (at your option) any later version.
+#
+#    This program is distributed in the hope that it will be useful,
+#    but WITHOUT ANY WARRANTY; without even the implied warranty of
+#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#    GNU General Public License for more details.
+#
+#    You should have received a copy of the GNU General Public License
+#    along with this program; if not, write to the Free Software
+#    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+#
+# Version 0.1  2002-02-06  Jean Delvare <khali@linux-fr.org>
+#
+# EEPROM data decoding for Sony Vaio laptops. 
+#
+# Two assumptions: lm_sensors-2.x installed,
+# and Perl is at /usr/bin/perl
+#
+# Please note that this is a guess-only work.  I don't expect much help from
+# Sony, so if someone can provide information, please contact me.  I used my
+# PCG-GR214EP as a base, but I can't promise that this script will work with
+# other models.  Any feedback appreciated anyway.
+#
+
+use strict;
+
+sub print_item
+{
+	my ($label,$value) = @_;
+	
+	printf("\%20s : \%s\n",$label,$value);
+}
+
+sub decode_char
+{
+	my ($bus,$addr,$base,$offset,$length) = @_;
+	
+	my $filename="/proc/sys/dev/sensors/eeprom-i2c-$bus-$addr/data$base-".($base+15);
+	open(FH,$filename) || die "Can't open $filename";
+	my $line=<FH>;
+	close(FH);
+	
+	my @bytes=split(/[ \n]/,$line);
+	@bytes=@bytes[$offset..$offset+$length-1];
+	my $string='';
+	my $item;
+	while(defined($item=shift(@bytes)))
+	{
+		$string.=chr($item);
+	}
+	
+	return($string);
+}
+
+sub decode_string
+{
+	my ($bus,$addr,$base,$offset,$length) = @_;
+
+	my $filename="/proc/sys/dev/sensors/eeprom-i2c-$bus-$addr/data$base-".($base+15);
+	open(FH,$filename) || die "Can't open $filename";
+	my $line=<FH>;
+	close(FH);
+
+	my @bytes=split(/[ \n]/,$line);
+	@bytes=@bytes[$offset..$offset+$length-1];
+	my $string='';
+	my $item;
+	while(defined($item=shift(@bytes)) && ($item!=0))
+	{
+		$string.=chr($item);
+	}
+	
+	return($string);
+}
+
+sub decode_string32
+{
+	my ($bus,$addr,$base) = @_;
+
+	my $filename="/proc/sys/dev/sensors/eeprom-i2c-$bus-$addr/data$base-".($base+15);
+	open(FH,$filename) || die "Can't open $filename";
+	my $line=<FH>;
+	close(FH);
+	$filename="/proc/sys/dev/sensors/eeprom-i2c-$bus-$addr/data".($base+16).'-'.($base+31);
+	open(FH,$filename) || die "Can't open $filename";
+	$line.=<FH>;
+	close(FH);
+
+	my @bytes=split(/[ \n]/,$line);
+	my $string='';
+	my $item;
+	while(defined($item=shift(@bytes)) && ($item!=0))
+	{
+		$string.=chr($item);
+	}
+	
+	return($string);
+}
+
+sub vaio_decode
+{
+	my ($bus,$addr) = @_;
+	
+	print_item('Model name',decode_string32($bus,$addr,128).' ['.decode_char($bus,$addr,160,10,4).']');
+	print_item('Revision',decode_string($bus,$addr,160,0,10));
+	print_item('Serial number',decode_string32($bus,$addr,192));
+	print_item('Timestamp',decode_string32($bus,$addr,224));
+}
+
+print("Sony Vaio EEPROM Decoder\n");
+print("Written by Jean Delvare.  Copyright 2002.\n");
+print("Version 0.1\n\n");
+
+if ( -r '/proc/sys/dev/sensors/eeprom-i2c-0-57')
+{
+	vaio_decode('0','57');
+}
+else
+{
+	print("Vaio eeprom not found.  Please make sure that the eeprom module is loaded.\n");
+	print("If you believe this is an error, please contact me <khali\@linux-fr.org>\n");
+	print("so that we may see how to fix the problem.\n");
+}
+
+print("\n");