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authorGraydon, Tracy <tracy.graydon@intel.com>2013-01-31 18:44:07 -0800
committerGraydon, Tracy <tracy.graydon@intel.com>2013-01-31 18:44:07 -0800
commitb19d79bf9028f58e3e4226bd9410b59f19fe3c8d (patch)
treea84dec919322f3d19c7c0cf3050c8c134a0d4fc6 /eeprom
downloadi2c-tools-accepted/tizen_3.0_common.tar.gz
i2c-tools-accepted/tizen_3.0_common.tar.bz2
i2c-tools-accepted/tizen_3.0_common.zip
Diffstat (limited to 'eeprom')
-rw-r--r--eeprom/Module.mk31
-rw-r--r--eeprom/README22
-rwxr-xr-xeeprom/ddcmon567
-rwxr-xr-xeeprom/decode-dimms1417
-rwxr-xr-xeeprom/decode-edid225
-rwxr-xr-xeeprom/decode-vaio237
-rwxr-xr-xeeprom/decode-xeon197
7 files changed, 2696 insertions, 0 deletions
diff --git a/eeprom/Module.mk b/eeprom/Module.mk
new file mode 100644
index 0000000..950bee5
--- /dev/null
+++ b/eeprom/Module.mk
@@ -0,0 +1,31 @@
+# EEPROM decoding scripts for the Linux eeprom driver
+#
+# Copyright (C) 2007-2008 Jean Delvare <khali@linux-fr.org>
+#
+# Licensed under the GNU General Public License.
+
+EEPROM_DIR := eeprom
+
+EEPROM_TARGETS := decode-dimms decode-vaio ddcmon decode-edid
+
+# decode-xeon was not yet ported to the Linux 2.6 sysfs interface
+ifeq (,$(findstring /2.6., /$(KERNELVERSION)))
+EEPROM_TARGETS += decode-xeon
+endif
+
+#
+# Commands
+#
+
+install-eeprom: $(addprefix $(EEPROM_DIR)/,$(EEPROM_TARGETS))
+ $(INSTALL_DIR) $(DESTDIR)$(bindir)
+ for program in $(EEPROM_TARGETS) ; do \
+ $(INSTALL_PROGRAM) $(EEPROM_DIR)/$$program $(DESTDIR)$(bindir) ; done
+
+uninstall-eeprom:
+ for program in $(EEPROM_TARGETS) ; do \
+ $(RM) $(DESTDIR)$(bindir)/$$program ; done
+
+install: install-eeprom
+
+uninstall: uninstall-eeprom
diff --git a/eeprom/README b/eeprom/README
new file mode 100644
index 0000000..efca1d0
--- /dev/null
+++ b/eeprom/README
@@ -0,0 +1,22 @@
+This directory contains scripts to decode the data exposed by the eeprom
+Linux kernel driver.
+
+* decode-dimms (perl script)
+ Decode the information found in memory module SPD EEPROMs. The SPD
+ data is read either from the running system or from dump files.
+
+* decode-vaio (perl script)
+ Decode the information found in Sony Vaio laptop identification EEPROMs.
+
+* ddcmon (perl script)
+ decode-edid (perl script)
+ Decode the information found in monitor EEPROMs. Both scripts require
+ an access to the DDC channel of the monitor. This is typically provided
+ by framebuffer drivers. decode-edid additionally requires parse-edid,
+ which is part of the read-edid package. ddcmon prints general
+ information, while decode-edid prints timing information for
+ inclusion into your X11 configuration file.
+
+* decode-xeon (perl script)
+ ID ROM data decoding for Xeon processors. Support for sysfs is still
+ missing, so this script doesn't work with 2.6 kernels yet.
diff --git a/eeprom/ddcmon b/eeprom/ddcmon
new file mode 100755
index 0000000..3c3caf0
--- /dev/null
+++ b/eeprom/ddcmon
@@ -0,0 +1,567 @@
+#!/usr/bin/perl -w
+#
+# Copyright (C) 2004-2005 Jean Delvare <khali@linux-fr.org>
+#
+# Parts inspired from decode-edid.
+# Copyright (C) 2003-2004 Jean Delvare <khali@linux-fr.org>
+#
+# Parts inspired from the ddcmon driver and sensors' print_ddcmon function.
+# Copyright (C) 1998-2004 Mark D. Studebaker
+#
+# Parts inspired from the fbmon driver (Linux 2.6.10).
+# Copyright (C) 2002 James Simmons <jsimmons@users.sf.net>
+#
+# 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., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301 USA.
+#
+# Version 1.0 2005-01-04 Jean Delvare <khali@linux-fr.org>
+#
+# This script is a replacement for the now deprecated ddcmon kernel driver.
+# Instead of having a dedicated driver, it is better to reuse the standard
+# eeprom driver and implement the EDID-specific code in user-space.
+#
+# EDID (Extended Display Identification Data) is a VESA standard which
+# allows storing (on manufacturer's side) and retrieving (on user's side)
+# of configuration information about displays, such as manufacturer,
+# serial number, physical dimensions and allowed horizontal and vertical
+# refresh rates.
+#
+# Syntax: ddcmon [bus [address]]
+# Address can be given in decimal or hexadecimal (with a 0x prefix).
+# If no address is given, default is 0x50.
+# Bus number must be given in decimal. If no bus number is given,
+# try them all.
+
+use strict;
+use Fcntl qw(:DEFAULT :seek);
+use vars qw(@standard_scales);
+
+@standard_scales = ([1, 1], [3, 4], [4, 5], [16, 9]);
+
+# Make sure the eeprom module is loaded.
+# For non-modular kernels, we can't help.
+if (-r '/proc/modules')
+{
+ my $found = 0;
+ open(MODULES, '/proc/modules');
+ while (!$found && defined ($_ = <MODULES>))
+ {
+ $found++ if m/^eeprom\s+/;
+ }
+ close(MODULES);
+
+ unless ($found)
+ {
+ print STDERR
+ "This script requires the eeprom module to be loaded.\n";
+ exit 1;
+ }
+}
+
+# Only used for sysfs
+sub rawread
+{
+ my $filename = shift;
+ my $length = shift;
+ my $offset = shift || 0;
+ my $bytes = '';
+
+ sysopen(FH, $filename, O_RDONLY)
+ or die "Can't open $filename";
+ if ($offset)
+ {
+ sysseek(FH, $offset, SEEK_SET)
+ or die "Can't seek in $filename";
+ }
+
+ $offset = 0;
+ while ($length)
+ {
+ my $r = sysread(FH, $bytes, $length, $offset);
+ die "Can't read $filename"
+ unless defined($r);
+ die "Unexpected EOF in $filename"
+ unless $r;
+ $offset += $r;
+ $length -= $r;
+ }
+ close(FH);
+
+ return $bytes;
+}
+
+sub get_edid_sysfs
+{
+ my ($bus, $addr) = @_;
+
+ my @bytes = unpack("C*", rawread("/sys/bus/i2c/devices/$bus-00$addr/eeprom", 128));
+
+ return \@bytes;
+}
+
+sub get_edid_procfs
+{
+ my ($bus, $addr) = @_;
+
+ my @bytes;
+
+ for (my $i = 0 ; $i < 0x80; $i += 0x10)
+ {
+ my $filename = sprintf("/proc/sys/dev/sensors/eeprom-i2c-\%s-\%s/\%02x",
+ $bus, $addr, $i);
+ open(EEDATA, $filename)
+ or die "Can't read $filename";
+ push @bytes, split(/\s+/, <EEDATA>);
+ close(EEDATA);
+ }
+
+ return \@bytes;
+}
+
+sub print_line
+{
+ my $label = shift;
+ my $pattern = shift;
+
+ printf("\%-24s$pattern\n", $label.':', @_);
+}
+
+sub extract_byte
+{
+ my ($bytes, $offset) = @_;
+
+ return $bytes->[$offset];
+}
+
+sub extract_word
+{
+ my ($bytes, $offset) = @_;
+
+ return ($bytes->[$offset]
+ | ($bytes->[$offset+1] << 8));
+}
+
+sub extract_manufacturer
+{
+ my ($bytes, $offset) = @_;
+ my $i = ($bytes->[$offset+1] | ($bytes->[$offset] << 8));
+
+ return sprintf('%c%c%c',
+ (($i >> 10) & 0x1f) + ord('A') - 1,
+ (($i >> 5) & 0x1f) + ord('A') - 1,
+ ($i & 0x1f) + ord('A') - 1);
+}
+
+sub extract_sesquiword
+{
+ my ($bytes, $offset) = @_;
+
+ return ($bytes->[$offset]
+ | ($bytes->[$offset+1] << 8)
+ | ($bytes->[$offset+2] << 16));
+}
+
+sub extract_dword
+{
+ my ($bytes, $offset) = @_;
+
+ return ($bytes->[$offset]
+ | ($bytes->[$offset+1] << 8)
+ | ($bytes->[$offset+2] << 16)
+ | ($bytes->[$offset+3] << 24));
+}
+
+sub extract_display_input
+{
+ my ($bytes, $offset) = @_;
+
+ my @voltage = ('0.700V/0.300V', '0.714V/0.286V',
+ '1.000V/0.400V', '0.700V/0.000V');
+
+ return 'Digital'
+ if ($bytes->[$offset] & 0x80);
+
+ return 'Analog ('.$voltage[($bytes->[$offset] & 0x60) >> 5].')';
+}
+
+sub extract_dpms
+{
+ my ($bytes, $offset) = @_;
+
+ my @supported;
+
+ push @supported, 'Active Off' if ($bytes->[$offset] & 0x20);
+ push @supported, 'Suspend' if ($bytes->[$offset] & 0x40);
+ push @supported, 'Standby' if ($bytes->[$offset] & 0x80);
+
+ return join(', ', @supported)
+ if (@supported);
+
+ return 'None supported';
+}
+
+sub extract_color_mode
+{
+ my ($bytes, $offset) = @_;
+
+ my @mode = ('Monochrome', 'RGB Multicolor', 'Non-RGB Multicolor');
+
+ return $mode[($bytes->[$offset] >> 3) & 0x03];
+}
+
+sub good_signature
+{
+ my $bytes = shift;
+
+ return $bytes->[0] == 0x00
+ && $bytes->[1] == 0xff
+ && $bytes->[2] == 0xff
+ && $bytes->[3] == 0xff
+ && $bytes->[4] == 0xff
+ && $bytes->[5] == 0xff
+ && $bytes->[6] == 0xff
+ && $bytes->[7] == 0x00;
+}
+
+sub verify_checksum
+{
+ my $bytes = shift;
+ my $cs;
+
+ for (my $i = 0, $cs = 0; $i < 0x80; $i++)
+ {
+ $cs += $bytes->[$i];
+ }
+
+ return (($cs & 0xff) == 0 ? 'OK' : 'Not OK');
+}
+
+sub add_timing
+{
+ my ($timings, $new) = @_;
+
+ my $mode = sprintf('%ux%u@%u%s', $new->[0], $new->[1],
+ $new->[2], defined ($new->[3]) &&
+ $new->[3] eq 'interlaced' ? 'i' : '');
+
+ $timings->{$mode} = $new;
+}
+
+sub add_standard_timing
+{
+ my ($timings, $byte0, $byte1) = @_;
+
+ # Unused slot
+ return if ($byte0 == $byte1)
+ && ($byte0 == 0x01 || $byte0 == 0x00 || $byte0 == 0x20);
+
+ my $width = ($byte0 + 31) * 8;
+ my $height = $width * $standard_scales[$byte1 >> 6]->[0]
+ / $standard_scales[$byte1 >> 6]->[1];
+ my $refresh = 60 + ($byte1 & 0x3f);
+
+ add_timing($timings, [$width, $height, $refresh]);
+}
+
+sub sort_timings
+{
+ # First order by width
+ return -1 if $a->[0] < $b->[0];
+ return 1 if $a->[0] > $b->[0];
+
+ # Second by height
+ return -1 if $a->[1] < $b->[1];
+ return 1 if $a->[1] > $b->[1];
+
+ # Third by frequency
+ # Interlaced modes count for half their frequency
+ my $freq_a = $a->[2];
+ my $freq_b = $b->[2];
+ $freq_a /= 2 if defined $a->[3] && $a->[3] eq 'interlaced';
+ $freq_b /= 2 if defined $b->[3] && $b->[3] eq 'interlaced';
+ return -1 if $freq_a < $freq_b;
+ return 1 if $freq_a > $freq_b;
+
+ return 0;
+}
+
+sub print_timings
+{
+ my ($bytes, $timings) = @_;
+
+ # Established Timings
+ my @established =
+ (
+ [720, 400, 70],
+ [720, 400, 88],
+ [640, 480, 60],
+ [640, 480, 67],
+ [640, 480, 72],
+ [640, 480, 75],
+ [800, 600, 56],
+ [800, 600, 60],
+ [800, 600, 72],
+ [800, 600, 75],
+ [832, 624, 75],
+ [1024, 768, 87, 'interlaced'],
+ [1024, 768, 60],
+ [1024, 768, 70],
+ [1024, 768, 75],
+ [1280, 1024, 75],
+ undef, undef, undef,
+ [1152, 870, 75],
+ );
+ my $temp = extract_sesquiword($bytes, 0x23);
+ for (my $i = 0; $i < 24; $i++)
+ {
+ next unless defined($established[$i]);
+ add_timing($timings, $established[$i])
+ if ($temp & (1 << $i));
+ }
+
+ # Standard Timings
+ for (my $i = 0x26; $i < 0x36; $i += 2)
+ {
+ add_standard_timing($timings, $bytes->[$i], $bytes->[$i+1]);
+ }
+
+ foreach my $v (sort sort_timings values(%{$timings}))
+ {
+ print_line("Timing", '%ux%u @ %u Hz%s',
+ $v->[0], $v->[1], $v->[2],
+ defined($v->[3]) ? ' ('.$v->[3].')' : '');
+ }
+}
+
+sub extract_string
+{
+ my ($bytes, $offset) = @_;
+ my $string = '';
+
+ for (my $i = 5; $i < 18; $i++)
+ {
+ last if $bytes->[$offset+$i] == 0x0a
+ || $bytes->[$offset+$i] == 0x00;
+ $string .= chr($bytes->[$offset+$i])
+ if ($bytes->[$offset+$i] >= 32
+ && $bytes->[$offset+$i] < 127);
+ }
+ $string =~ s/\s+$//;
+
+ return $string;
+}
+
+# Some blocks contain different information:
+# 0x00, 0x00, 0x00, 0xfa: Additional standard timings block
+# 0x00, 0x00, 0x00, 0xfc: Monitor block
+# 0x00, 0x00, 0x00, 0xfd: Limits block
+# 0x00, 0x00, 0x00, 0xfe: Ascii block
+# 0x00, 0x00, 0x00, 0xff: Serial block
+# Return a reference to a hash containing all information.
+sub extract_detailed_timings
+{
+ my ($bytes) = @_;
+
+ my %info = ('timings' => {});
+
+ for (my $offset = 0x36; $offset < 0x7e; $offset += 18)
+ {
+ if ($bytes->[$offset] == 0x00
+ && $bytes->[$offset+1] == 0x00
+ && $bytes->[$offset+2] == 0x00
+ && $bytes->[$offset+4] == 0x00)
+ {
+ if ($bytes->[$offset+3] == 0xfa)
+ {
+ for (my $i = $offset + 5; $i < $offset + 17; $i += 2)
+ {
+ add_standard_timing($info{'timings'},
+ $bytes->[$i],
+ $bytes->[$i+1]);
+ }
+ }
+
+ elsif ($bytes->[$offset+3] == 0xfc)
+ {
+ $info{'monitor'} .= extract_string($bytes, $offset);
+ }
+
+ elsif ($bytes->[$offset+3] == 0xfd)
+ {
+ $info{'limits'}{'vsync_min'} = $bytes->[$offset+5];
+ $info{'limits'}{'vsync_max'} = $bytes->[$offset+6];
+ $info{'limits'}{'hsync_min'} = $bytes->[$offset+7];
+ $info{'limits'}{'hsync_max'} = $bytes->[$offset+8];
+ $info{'limits'}{'clock_max'} = $bytes->[$offset+9];
+ }
+
+ elsif ($bytes->[$offset+3] == 0xfe)
+ {
+ $info{'ascii'} .= extract_string($bytes, $offset);
+ }
+
+ elsif ($bytes->[$offset+3] == 0xff)
+ {
+ $info{'serial'} .= extract_string($bytes, $offset);
+ }
+
+ next;
+ }
+
+ # Detailed Timing
+ my $width = $bytes->[$offset+2] + (($bytes->[$offset+4] & 0xf0) << 4);
+ my $height = $bytes->[$offset+5] + (($bytes->[$offset+7] & 0xf0) << 4);
+ my $clock = extract_word($bytes, $offset) * 10000;
+ my $hblank = $bytes->[$offset+3] + (($bytes->[$offset+4] & 0x0f) << 8);
+ my $vblank = $bytes->[$offset+6] + (($bytes->[$offset+7] & 0x0f) << 8);
+ my $area = ($width + $hblank) * ($height + $vblank);
+ next unless $area; # Should not happen, but...
+ my $refresh = ($clock + $area / 2) / $area; # Proper rounding
+ add_timing($info{'timings'}, [$width, $height, $refresh]);
+ }
+
+ return \%info;
+}
+
+sub print_edid
+{
+ my ($bus, $address) = @_;
+ my $bytes;
+
+ if (-r "/sys/bus/i2c/devices/$bus-00$address/eeprom")
+ {
+ $bytes = get_edid_sysfs($bus, $address);
+ }
+ elsif (-r "/proc/sys/dev/sensors/eeprom-i2c-$bus-$address/00")
+ {
+ $bytes = get_edid_procfs($bus, $address);
+ }
+
+ return 1 unless defined $bytes;
+ return 2 unless good_signature($bytes);
+
+ print_line('Checksum', '%s', verify_checksum($bytes));
+ my $edid_version = extract_byte($bytes, 0x12);
+ my $edid_revision = extract_byte($bytes, 0x13);
+ print_line('EDID Version', '%u.%u', $edid_version,
+ $edid_revision);
+ if ($edid_version > 1 || $edid_revision > 2)
+ {
+ $standard_scales[0][0] = 16;
+ $standard_scales[0][1] = 10;
+ }
+ else
+ {
+ $standard_scales[0][0] = 1;
+ $standard_scales[0][1] = 1;
+ }
+
+ my $info = extract_detailed_timings($bytes);
+
+ print_line('Manufacturer ID', '%s', extract_manufacturer($bytes, 0x08));
+ print_line('Model Number', '0x%04X', extract_word($bytes, 0x0A));
+ print_line('Model Name', '%s', $info->{'monitor'})
+ if defined $info->{'monitor'};
+
+ if ($info->{'serial'})
+ {
+ print_line('Serial Number', '%s', $info->{'serial'})
+ }
+ elsif ((my $temp = extract_dword($bytes, 0x0C)))
+ {
+ print_line('Serial Number', '%u', $temp)
+ }
+
+ print_line('Manufacture Time', '%u-W%02u',
+ 1990 + extract_byte($bytes, 0x11),
+ extract_byte($bytes, 0x10));
+ print_line('Display Input', '%s', extract_display_input($bytes, 0x14));
+ print_line('Monitor Size (cm)', '%ux%u', extract_byte($bytes, 0x15),
+ extract_byte($bytes, 0x16));
+ print_line('Gamma Factor', '%.2f',
+ 1 + extract_byte($bytes, 0x17) / 100.0);
+ print_line('DPMS Modes', '%s', extract_dpms($bytes, 0x18));
+ print_line('Color Mode', '%s', extract_color_mode($bytes, 0x18))
+ if (($bytes->[0x18] & 0x18) != 0x18);
+ print_line('Additional Info', '%s', $info->{'ascii'})
+ if $info->{'ascii'};
+
+ if (defined($info->{'limits'}))
+ {
+ print_line('Vertical Sync (Hz)', '%u-%u',
+ $info->{'limits'}{'vsync_min'},
+ $info->{'limits'}{'vsync_max'});
+ print_line('Horizontal Sync (kHz)', '%u-%u',
+ $info->{'limits'}{'hsync_min'},
+ $info->{'limits'}{'hsync_max'});
+ print_line('Max Pixel Clock (MHz)', '%u',
+ $info->{'limits'}{'clock_max'} * 10)
+ unless $info->{'limits'}{'clock_max'} == 0xff;
+ }
+
+ print_timings($bytes, $info->{'timings'});
+ print("\n");
+ return 0;
+}
+
+# Get the address. Default to 0x50 if not given.
+my $address;
+if (defined($ARGV[1]))
+{
+ $address = $ARGV[1];
+ # Convert to decimal, whatever the value.
+ $address = oct $address if $address =~ m/^0/;
+ # Convert to an hexadecimal string.
+ $address = sprintf '%02x', $address;
+}
+else
+{
+ $address = '50';
+}
+
+if (defined($ARGV[0]))
+{
+ my $error = print_edid($ARGV[0], $address);
+
+ if ($error == 1)
+ {
+ print STDERR
+ "No EEPROM found at 0x$address on bus $ARGV[0].\n";
+ exit 1;
+ }
+ elsif ($error == 2)
+ {
+ print STDERR
+ "EEPROM found at 0x$address on bus $ARGV[0], but is not an EDID EEPROM.\n";
+ exit 1;
+ }
+}
+# If no bus is given, try them all.
+else
+{
+ my $total = 0;
+
+ for (my $i = 0; $i < 16; $i++)
+ {
+ $total++ unless print_edid($i, $address);
+ }
+
+ unless ($total)
+ {
+ print STDERR
+ "No EDID EEPROM found.\n";
+ exit 1;
+ }
+}
diff --git a/eeprom/decode-dimms b/eeprom/decode-dimms
new file mode 100755
index 0000000..cf9cebf
--- /dev/null
+++ b/eeprom/decode-dimms
@@ -0,0 +1,1417 @@
+#!/usr/bin/perl -w
+#
+# EEPROM data decoder for SDRAM DIMM modules
+#
+# Copyright 1998, 1999 Philip Edelbrock <phil@netroedge.com>
+# modified by Christian Zuckschwerdt <zany@triq.net>
+# modified by Burkart Lingner <burkart@bollchen.de>
+# Copyright (C) 2005-2008 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., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301 USA.
+#
+#
+# The eeprom driver must be loaded (unless option -x is used). For kernels
+# older than 2.6.0, the eeprom driver can be found in the lm-sensors package.
+#
+# References:
+# PC SDRAM Serial Presence
+# Detect (SPD) Specification, Intel,
+# 1997,1999, Rev 1.2B
+#
+# Jedec Standards 4.1.x & 4.5.x
+# http://www.jedec.org
+#
+
+require 5.004;
+
+use strict;
+use POSIX qw(ceil);
+use Fcntl qw(:DEFAULT :seek);
+use vars qw($opt_html $opt_bodyonly $opt_igncheck $use_sysfs $use_hexdump
+ @vendors %decode_callback $revision @dimm_list %hexdump_cache);
+
+use constant LITTLEENDIAN => "little-endian";
+use constant BIGENDIAN => "big-endian";
+
+$revision = '$Revision: 5388 $ ($Date: 2008-11-18 18:15:09 +0100 (mar. 18 nov. 2008) $)';
+$revision =~ s/\$\w+: (.*?) \$/$1/g;
+$revision =~ s/ \([^()]*\)//;
+
+@vendors = (
+["AMD", "AMI", "Fairchild", "Fujitsu",
+ "GTE", "Harris", "Hitachi", "Inmos",
+ "Intel", "I.T.T.", "Intersil", "Monolithic Memories",
+ "Mostek", "Freescale (former Motorola)", "National", "NEC",
+ "RCA", "Raytheon", "Conexant (Rockwell)", "Seeq",
+ "NXP (former Signetics, Philips Semi.)", "Synertek", "Texas Instruments", "Toshiba",
+ "Xicor", "Zilog", "Eurotechnique", "Mitsubishi",
+ "Lucent (AT&T)", "Exel", "Atmel", "SGS/Thomson",
+ "Lattice Semi.", "NCR", "Wafer Scale Integration", "IBM",
+ "Tristar", "Visic", "Intl. CMOS Technology", "SSSI",
+ "MicrochipTechnology", "Ricoh Ltd.", "VLSI", "Micron Technology",
+ "Hyundai Electronics", "OKI Semiconductor", "ACTEL", "Sharp",
+ "Catalyst", "Panasonic", "IDT", "Cypress",
+ "DEC", "LSI Logic", "Zarlink (former Plessey)", "UTMC",
+ "Thinking Machine", "Thomson CSF", "Integrated CMOS (Vertex)", "Honeywell",
+ "Tektronix", "Sun Microsystems", "SST", "ProMos/Mosel Vitelic",
+ "Infineon (former Siemens)", "Macronix", "Xerox", "Plus Logic",
+ "SunDisk", "Elan Circuit Tech.", "European Silicon Str.", "Apple Computer",
+ "Xilinx", "Compaq", "Protocol Engines", "SCI",
+ "Seiko Instruments", "Samsung", "I3 Design System", "Klic",
+ "Crosspoint Solutions", "Alliance Semiconductor", "Tandem", "Hewlett-Packard",
+ "Intg. Silicon Solutions", "Brooktree", "New Media", "MHS Electronic",
+ "Performance Semi.", "Winbond Electronic", "Kawasaki Steel", "Bright Micro",
+ "TECMAR", "Exar", "PCMCIA", "LG Semi (former Goldstar)",
+ "Northern Telecom", "Sanyo", "Array Microsystems", "Crystal Semiconductor",
+ "Analog Devices", "PMC-Sierra", "Asparix", "Convex Computer",
+ "Quality Semiconductor", "Nimbus Technology", "Transwitch", "Micronas (ITT Intermetall)",
+ "Cannon", "Altera", "NEXCOM", "QUALCOMM",
+ "Sony", "Cray Research", "AMS(Austria Micro)", "Vitesse",
+ "Aster Electronics", "Bay Networks (Synoptic)", "Zentrum or ZMD", "TRW",
+ "Thesys", "Solbourne Computer", "Allied-Signal", "Dialog",
+ "Media Vision", "Level One Communication"],
+["Cirrus Logic", "National Instruments", "ILC Data Device", "Alcatel Mietec",
+ "Micro Linear", "Univ. of NC", "JTAG Technologies", "BAE Systems",
+ "Nchip", "Galileo Tech", "Bestlink Systems", "Graychip",
+ "GENNUM", "VideoLogic", "Robert Bosch", "Chip Express",
+ "DATARAM", "United Microelec Corp.", "TCSI", "Smart Modular",
+ "Hughes Aircraft", "Lanstar Semiconductor", "Qlogic", "Kingston",
+ "Music Semi", "Ericsson Components", "SpaSE", "Eon Silicon Devices",
+ "Programmable Micro Corp", "DoD", "Integ. Memories Tech.", "Corollary Inc.",
+ "Dallas Semiconductor", "Omnivision", "EIV(Switzerland)", "Novatel Wireless",
+ "Zarlink (former Mitel)", "Clearpoint", "Cabletron", "STEC (former Silicon Technology)",
+ "Vanguard", "Hagiwara Sys-Com", "Vantis", "Celestica",
+ "Century", "Hal Computers", "Rohm Company Ltd.", "Juniper Networks",
+ "Libit Signal Processing", "Mushkin Enhanced Memory", "Tundra Semiconductor", "Adaptec Inc.",
+ "LightSpeed Semi.", "ZSP Corp.", "AMIC Technology", "Adobe Systems",
+ "Dynachip", "PNY Electronics", "Newport Digital", "MMC Networks",
+ "T Square", "Seiko Epson", "Broadcom", "Viking Components",
+ "V3 Semiconductor", "Flextronics (former Orbit)", "Suwa Electronics", "Transmeta",
+ "Micron CMS", "American Computer & Digital Components Inc", "Enhance 3000 Inc", "Tower Semiconductor",
+ "CPU Design", "Price Point", "Maxim Integrated Product", "Tellabs",
+ "Centaur Technology", "Unigen Corporation", "Transcend Information", "Memory Card Technology",
+ "CKD Corporation Ltd.", "Capital Instruments, Inc.", "Aica Kogyo, Ltd.", "Linvex Technology",
+ "MSC Vertriebs GmbH", "AKM Company, Ltd.", "Dynamem, Inc.", "NERA ASA",
+ "GSI Technology", "Dane-Elec (C Memory)", "Acorn Computers", "Lara Technology",
+ "Oak Technology, Inc.", "Itec Memory", "Tanisys Technology", "Truevision",
+ "Wintec Industries", "Super PC Memory", "MGV Memory", "Galvantech",
+ "Gadzoox Nteworks", "Multi Dimensional Cons.", "GateField", "Integrated Memory System",
+ "Triscend", "XaQti", "Goldenram", "Clear Logic",
+ "Cimaron Communications", "Nippon Steel Semi. Corp.", "Advantage Memory", "AMCC",
+ "LeCroy", "Yamaha Corporation", "Digital Microwave", "NetLogic Microsystems",
+ "MIMOS Semiconductor", "Advanced Fibre", "BF Goodrich Data.", "Epigram",
+ "Acbel Polytech Inc.", "Apacer Technology", "Admor Memory", "FOXCONN",
+ "Quadratics Superconductor", "3COM"],
+["Camintonn Corporation", "ISOA Incorporated", "Agate Semiconductor", "ADMtek Incorporated",
+ "HYPERTEC", "Adhoc Technologies", "MOSAID Technologies", "Ardent Technologies",
+ "Switchcore", "Cisco Systems, Inc.", "Allayer Technologies", "WorkX AG",
+ "Oasis Semiconductor", "Novanet Semiconductor", "E-M Solutions", "Power General",
+ "Advanced Hardware Arch.", "Inova Semiconductors GmbH", "Telocity", "Delkin Devices",
+ "Symagery Microsystems", "C-Port Corporation", "SiberCore Technologies", "Southland Microsystems",
+ "Malleable Technologies", "Kendin Communications", "Great Technology Microcomputer", "Sanmina Corporation",
+ "HADCO Corporation", "Corsair", "Actrans System Inc.", "ALPHA Technologies",
+ "Silicon Laboratories, Inc. (Cygnal)", "Artesyn Technologies", "Align Manufacturing", "Peregrine Semiconductor",
+ "Chameleon Systems", "Aplus Flash Technology", "MIPS Technologies", "Chrysalis ITS",
+ "ADTEC Corporation", "Kentron Technologies", "Win Technologies", "Tachyon Semiconductor (former ASIC Designs Inc.)",
+ "Extreme Packet Devices", "RF Micro Devices", "Siemens AG", "Sarnoff Corporation",
+ "Itautec Philco SA", "Radiata Inc.", "Benchmark Elect. (AVEX)", "Legend",
+ "SpecTek Incorporated", "Hi/fn", "Enikia Incorporated", "SwitchOn Networks",
+ "AANetcom Incorporated", "Micro Memory Bank", "ESS Technology", "Virata Corporation",
+ "Excess Bandwidth", "West Bay Semiconductor", "DSP Group", "Newport Communications",
+ "Chip2Chip Incorporated", "Phobos Corporation", "Intellitech Corporation", "Nordic VLSI ASA",
+ "Ishoni Networks", "Silicon Spice", "Alchemy Semiconductor", "Agilent Technologies",
+ "Centillium Communications", "W.L. Gore", "HanBit Electronics", "GlobeSpan",
+ "Element 14", "Pycon", "Saifun Semiconductors", "Sibyte, Incorporated",
+ "MetaLink Technologies", "Feiya Technology", "I & C Technology", "Shikatronics",
+ "Elektrobit", "Megic", "Com-Tier", "Malaysia Micro Solutions",
+ "Hyperchip", "Gemstone Communications", "Anadigm (former Anadyne)", "3ParData",
+ "Mellanox Technologies", "Tenx Technologies", "Helix AG", "Domosys",
+ "Skyup Technology", "HiNT Corporation", "Chiaro", "MDT Technologies GmbH (former MCI Computer GMBH)",
+ "Exbit Technology A/S", "Integrated Technology Express", "AVED Memory", "Legerity",
+ "Jasmine Networks", "Caspian Networks", "nCUBE", "Silicon Access Networks",
+ "FDK Corporation", "High Bandwidth Access", "MultiLink Technology", "BRECIS",
+ "World Wide Packets", "APW", "Chicory Systems", "Xstream Logic",
+ "Fast-Chip", "Zucotto Wireless", "Realchip", "Galaxy Power",
+ "eSilicon", "Morphics Technology", "Accelerant Networks", "Silicon Wave",
+ "SandCraft", "Elpida"],
+["Solectron", "Optosys Technologies", "Buffalo (former Melco)", "TriMedia Technologies",
+ "Cyan Technologies", "Global Locate", "Optillion", "Terago Communications",
+ "Ikanos Communications", "Princeton Technology", "Nanya Technology", "Elite Flash Storage",
+ "Mysticom", "LightSand Communications", "ATI Technologies", "Agere Systems",
+ "NeoMagic", "AuroraNetics", "Golden Empire", "Mushkin",
+ "Tioga Technologies", "Netlist", "TeraLogic", "Cicada Semiconductor",
+ "Centon Electronics", "Tyco Electronics", "Magis Works", "Zettacom",
+ "Cogency Semiconductor", "Chipcon AS", "Aspex Technology", "F5 Networks",
+ "Programmable Silicon Solutions", "ChipWrights", "Acorn Networks", "Quicklogic",
+ "Kingmax Semiconductor", "BOPS", "Flasys", "BitBlitz Communications",
+ "eMemory Technology", "Procket Networks", "Purple Ray", "Trebia Networks",
+ "Delta Electronics", "Onex Communications", "Ample Communications", "Memory Experts Intl",
+ "Astute Networks", "Azanda Network Devices", "Dibcom", "Tekmos",
+ "API NetWorks", "Bay Microsystems", "Firecron Ltd", "Resonext Communications",
+ "Tachys Technologies", "Equator Technology", "Concept Computer", "SILCOM",
+ "3Dlabs", "c't Magazine", "Sanera Systems", "Silicon Packets",
+ "Viasystems Group", "Simtek", "Semicon Devices Singapore", "Satron Handelsges",
+ "Improv Systems", "INDUSYS GmbH", "Corrent", "Infrant Technologies",
+ "Ritek Corp", "empowerTel Networks", "Hypertec", "Cavium Networks",
+ "PLX Technology", "Massana Design", "Intrinsity", "Valence Semiconductor",
+ "Terawave Communications", "IceFyre Semiconductor", "Primarion", "Picochip Designs Ltd",
+ "Silverback Systems", "Jade Star Technologies", "Pijnenburg Securealink",
+ "TakeMS International AG", "Cambridge Silicon Radio",
+ "Swissbit", "Nazomi Communications", "eWave System",
+ "Rockwell Collins", "Picocel Co., Ltd.", "Alphamosaic Ltd", "Sandburst",
+ "SiCon Video", "NanoAmp Solutions", "Ericsson Technology", "PrairieComm",
+ "Mitac International", "Layer N Networks", "MtekVision", "Allegro Networks",
+ "Marvell Semiconductors", "Netergy Microelectronic", "NVIDIA", "Internet Machines",
+ "Peak Electronics", "Litchfield Communication", "Accton Technology", "Teradiant Networks",
+ "Europe Technologies", "Cortina Systems", "RAM Components", "Raqia Networks",
+ "ClearSpeed", "Matsushita Battery", "Xelerated", "SimpleTech",
+ "Utron Technology", "Astec International", "AVM gmbH", "Redux Communications",
+ "Dot Hill Systems", "TeraChip"],
+["T-RAM Incorporated", "Innovics Wireless", "Teknovus", "KeyEye Communications",
+ "Runcom Technologies", "RedSwitch", "Dotcast", "Silicon Mountain Memory",
+ "Signia Technologies", "Pixim", "Galazar Networks", "White Electronic Designs",
+ "Patriot Scientific", "Neoaxiom Corporation", "3Y Power Technology", "Europe Technologies",
+ "Potentia Power Systems", "C-guys Incorporated", "Digital Communications Technology Incorporated", "Silicon-Based Technology",
+ "Fulcrum Microsystems", "Positivo Informatica Ltd", "XIOtech Corporation", "PortalPlayer",
+ "Zhiying Software", "Direct2Data", "Phonex Broadband", "Skyworks Solutions",
+ "Entropic Communications", "Pacific Force Technology", "Zensys A/S", "Legend Silicon Corp.",
+ "sci-worx GmbH", "SMSC (former Oasis Silicon Systems)", "Renesas Technology", "Raza Microelectronics",
+ "Phyworks", "MediaTek", "Non-cents Productions", "US Modular",
+ "Wintegra Ltd", "Mathstar", "StarCore", "Oplus Technologies",
+ "Mindspeed", "Just Young Computer", "Radia Communications", "OCZ",
+ "Emuzed", "LOGIC Devices", "Inphi Corporation", "Quake Technologies",
+ "Vixel", "SolusTek", "Kongsberg Maritime", "Faraday Technology",
+ "Altium Ltd.", "Insyte", "ARM Ltd.", "DigiVision",
+ "Vativ Technologies", "Endicott Interconnect Technologies", "Pericom", "Bandspeed",
+ "LeWiz Communications", "CPU Technology", "Ramaxel Technology", "DSP Group",
+ "Axis Communications", "Legacy Electronics", "Chrontel", "Powerchip Semiconductor",
+ "MobilEye Technologies", "Excel Semiconductor", "A-DATA Technology", "VirtualDigm",
+ "G Skill Intl", "Quanta Computer", "Yield Microelectronics", "Afa Technologies",
+ "KINGBOX Technology Co. Ltd.", "Ceva", "iStor Networks", "Advance Modules",
+ "Microsoft", "Open-Silicon", "Goal Semiconductor", "ARC International",
+ "Simmtec", "Metanoia", "Key Stream", "Lowrance Electronics",
+ "Adimos", "SiGe Semiconductor", "Fodus Communications", "Credence Systems Corp.",
+ "Genesis Microchip Inc.", "Vihana, Inc.", "WIS Technologies", "GateChange Technologies",
+ "High Density Devices AS", "Synopsys", "Gigaram", "Enigma Semiconductor Inc.",
+ "Century Micro Inc.", "Icera Semiconductor", "Mediaworks Integrated Systems", "O'Neil Product Development",
+ "Supreme Top Technology Ltd.", "MicroDisplay Corporation", "Team Group Inc.", "Sinett Corporation",
+ "Toshiba Corporation", "Tensilica", "SiRF Technology", "Bacoc Inc.",
+ "SMaL Camera Technologies", "Thomson SC", "Airgo Networks", "Wisair Ltd.",
+ "SigmaTel", "Arkados", "Compete IT gmbH Co. KG", "Eudar Technology Inc.",
+ "Focus Enhancements", "Xyratex"],
+["Specular Networks", "Patriot Memory", "U-Chip Technology Corp.", "Silicon Optix",
+ "Greenfield Networks", "CompuRAM GmbH", "Stargen, Inc.", "NetCell Corporation",
+ "Excalibrus Technologies Ltd", "SCM Microsystems", "Xsigo Systems, Inc.", "CHIPS & Systems Inc",
+ "Tier 1 Multichip Solutions", "CWRL Labs", "Teradici", "Gigaram, Inc.",
+ "g2 Microsystems", "PowerFlash Semiconductor", "P.A. Semi, Inc.", "NovaTech Solutions, S.A.",
+ "c2 Microsystems, Inc.", "Level5 Networks", "COS Memory AG", "Innovasic Semiconductor",
+ "02IC Co. Ltd", "Tabula, Inc.", "Crucial Technology", "Chelsio Communications",
+ "Solarflare Communications", "Xambala Inc.", "EADS Astrium", "ATO Semicon Co. Ltd.",
+ "Imaging Works, Inc.", "Astute Networks, Inc.", "Tzero", "Emulex",
+ "Power-One", "Pulse~LINK Inc.", "Hon Hai Precision Industry", "White Rock Networks Inc.",
+ "Telegent Systems USA, Inc.", "Atrua Technologies, Inc.", "Acbel Polytech Inc.",
+ "eRide Inc.","ULi Electronics Inc.", "Magnum Semiconductor Inc.", "neoOne Technology, Inc.",
+ "Connex Technology, Inc.", "Stream Processors, Inc.", "Focus Enhancements", "Telecis Wireless, Inc.",
+ "uNav Microelectronics", "Tarari, Inc.", "Ambric, Inc.", "Newport Media, Inc.", "VMTS",
+ "Enuclia Semiconductor, Inc.", "Virtium Technology Inc.", "Solid State System Co., Ltd.", "Kian Tech LLC",
+ "Artimi", "Power Quotient International", "Avago Technologies", "ADTechnology", "Sigma Designs",
+ "SiCortex, Inc.", "Ventura Technology Group", "eASIC", "M.H.S. SAS", "Micro Star International",
+ "Rapport Inc.", "Makway International", "Broad Reach Engineering Co.",
+ "Semiconductor Mfg Intl Corp", "SiConnect", "FCI USA Inc.", "Validity Sensors",
+ "Coney Technology Co. Ltd.", "Spans Logic", "Neterion Inc.", "Qimonda",
+ "New Japan Radio Co. Ltd.", "Velogix", "Montalvo Systems", "iVivity Inc.", "Walton Chaintech",
+ "AENEON", "Lorom Industrial Co. Ltd.", "Radiospire Networks", "Sensio Technologies, Inc.",
+ "Nethra Imaging", "Hexon Technology Pte Ltd", "CompuStocx (CSX)", "Methode Electronics, Inc.",
+ "Connect One Ltd.", "Opulan Technologies", "Septentrio NV", "Goldenmars Technology Inc.",
+ "Kreton Corporation", "Cochlear Ltd.", "Altair Semiconductor", "NetEffect, Inc.",
+ "Spansion, Inc.", "Taiwan Semiconductor Mfg", "Emphany Systems Inc.",
+ "ApaceWave Technologies", "Mobilygen Corporation", "Tego", "Cswitch Corporation",
+ "Haier (Beijing) IC Design Co.", "MetaRAM", "Axel Electronics Co. Ltd.", "Tilera Corporation",
+ "Aquantia", "Vivace Semiconductor", "Redpine Signals", "Octalica", "InterDigital Communications",
+ "Avant Technology", "Asrock, Inc.", "Availink", "Quartics, Inc.", "Element CXI",
+ "Innovaciones Microelectronicas", "VeriSilicon Microelectronics", "W5 Networks"],
+["MOVEKING", "Mavrix Technology, Inc.", "CellGuide Ltd.", "Faraday Technology",
+ "Diablo Technologies, Inc.", "Jennic", "Octasic", "Molex Incorporated", "3Leaf Networks",
+ "Bright Micron Technology", "Netxen", "NextWave Broadband Inc.", "DisplayLink", "ZMOS Technology",
+ "Tec-Hill", "Multigig, Inc.", "Amimon", "Euphonic Technologies, Inc.", "BRN Phoenix",
+ "InSilica", "Ember Corporation", "Avexir Technologies Corporation", "Echelon Corporation",
+ "Edgewater Computer Systems", "XMOS Semiconductor Ltd.", "GENUSION, Inc.", "Memory Corp NV",
+ "SiliconBlue Technologies", "Rambus Inc."]);
+
+$use_sysfs = -d '/sys/bus';
+
+# We consider that no data was written to this area of the SPD EEPROM if
+# all bytes read 0x00 or all bytes read 0xff
+sub spd_written(@)
+{
+ my $all_00 = 1;
+ my $all_ff = 1;
+
+ foreach my $b (@_) {
+ $all_00 = 0 unless $b == 0x00;
+ $all_ff = 0 unless $b == 0xff;
+ return 1 unless $all_00 or $all_ff;
+ }
+
+ return 0;
+}
+
+sub parity($)
+{
+ my $n = shift;
+ my $parity = 0;
+
+ while ($n) {
+ $parity++ if ($n & 1);
+ $n >>= 1;
+ }
+
+ return ($parity & 1);
+}
+
+sub manufacturer(@)
+{
+ my @bytes = @_;
+ my $ai = 0;
+ my $first;
+
+ return ("Undefined", []) unless spd_written(@bytes);
+
+ while (defined($first = shift(@bytes)) && $first == 0x7F) {
+ $ai++;
+ }
+
+ return ("Invalid", []) unless defined $first;
+ return ("Invalid", [$first, @bytes]) if parity($first) != 1;
+ return ("Unknown", \@bytes) unless (($first & 0x7F) - 1 <= $vendors[$ai]);
+
+ return ($vendors[$ai][($first & 0x7F) - 1], \@bytes);
+}
+
+sub manufacturer_data(@)
+{
+ my $hex = "";
+ my $asc = "";
+
+ return unless spd_written(@_);
+
+ foreach my $byte (@_) {
+ $hex .= sprintf("\%02X ", $byte);
+ $asc .= ($byte >= 32 && $byte < 127) ? chr($byte) : '?';
+ }
+
+ return "$hex(\"$asc\")";
+}
+
+sub part_number(@)
+{
+ my $asc = "";
+ my $byte;
+
+ while (defined ($byte = shift) && $byte >= 32 && $byte < 127) {
+ $asc .= chr($byte);
+ }
+
+ return ($asc eq "") ? "Undefined" : $asc;
+}
+
+sub cas_latencies(@)
+{
+ return "None" unless @_;
+ return join ', ', map("${_}T", sort { $b <=> $a } @_);
+}
+
+sub printl($$) # print a line w/ label and value
+{
+ my ($label, $value) = @_;
+ if ($opt_html) {
+ $label =~ s/</\&lt;/sg;
+ $label =~ s/>/\&gt;/sg;
+ $label =~ s/\n/<br>\n/sg;
+ $value =~ s/</\&lt;/sg;
+ $value =~ s/>/\&gt;/sg;
+ $value =~ s/\n/<br>\n/sg;
+ print "<tr><td valign=top>$label</td><td>$value</td></tr>\n";
+ } else {
+ my @values = split /\n/, $value;
+ printf "%-47s %s\n", $label, shift @values;
+ printf "%-47s %s\n", "", $_ foreach (@values);
+ }
+}
+
+sub printl2($$) # print a line w/ label and value (outside a table)
+{
+ my ($label, $value) = @_;
+ if ($opt_html) {
+ $label =~ s/</\&lt;/sg;
+ $label =~ s/>/\&gt;/sg;
+ $label =~ s/\n/<br>\n/sg;
+ $value =~ s/</\&lt;/sg;
+ $value =~ s/>/\&gt;/sg;
+ $value =~ s/\n/<br>\n/sg;
+ }
+ print "$label: $value\n";
+}
+
+sub prints($) # print seperator w/ given text
+{
+ my ($label) = @_;
+ if ($opt_html) {
+ $label =~ s/</\&lt;/sg;
+ $label =~ s/>/\&gt;/sg;
+ $label =~ s/\n/<br>\n/sg;
+ print "<tr><td align=center colspan=2><b>$label</b></td></tr>\n";
+ } else {
+ print "\n---=== $label ===---\n";
+ }
+}
+
+sub printh($$) # print header w/ given text
+{
+ my ($header, $sub) = @_;
+ if ($opt_html) {
+ $header =~ s/</\&lt;/sg;
+ $header =~ s/>/\&gt;/sg;
+ $header =~ s/\n/<br>\n/sg;
+ $sub =~ s/</\&lt;/sg;
+ $sub =~ s/>/\&gt;/sg;
+ $sub =~ s/\n/<br>\n/sg;
+ print "<h1>$header</h1>\n";
+ print "<p>$sub</p>\n";
+ } else {
+ print "\n$header\n$sub\n";
+ }
+}
+
+sub printc($) # print comment
+{
+ my ($comment) = @_;
+ if ($opt_html) {
+ $comment =~ s/</\&lt;/sg;
+ $comment =~ s/>/\&gt;/sg;
+ $comment =~ s/\n/<br>\n/sg;
+ print "<!-- $comment -->\n";
+ } else {
+ print "# $comment\n";
+ }
+}
+
+sub tns($) # print a time in ns
+{
+ return sprintf("%3.2f ns", $_[0]);
+}
+
+# Parameter: bytes 0-63
+sub decode_sdr_sdram($)
+{
+ my $bytes = shift;
+ my ($l, $temp);
+
+# SPD revision
+ printl "SPD Revision", $bytes->[62];
+
+#size computation
+
+ prints "Memory Characteristics";
+
+ my $k = 0;
+ my $ii = 0;
+
+ $ii = ($bytes->[3] & 0x0f) + ($bytes->[4] & 0x0f) - 17;
+ if (($bytes->[5] <= 8) && ($bytes->[17] <= 8)) {
+ $k = $bytes->[5] * $bytes->[17];
+ }
+
+ if ($ii > 0 && $ii <= 12 && $k > 0) {
+ printl "Size", ((1 << $ii) * $k) . " MB";
+ } else {
+ printl "INVALID SIZE", $bytes->[3] . "," . $bytes->[4] . "," .
+ $bytes->[5] . "," . $bytes->[17];
+ }
+
+ my @cas;
+ for ($ii = 0; $ii < 7; $ii++) {
+ push(@cas, $ii + 1) if ($bytes->[18] & (1 << $ii));
+ }
+
+ my $trcd;
+ my $trp;
+ my $tras;
+ my $ctime = ($bytes->[9] >> 4) + ($bytes->[9] & 0xf) * 0.1;
+
+ $trcd = $bytes->[29];
+ $trp = $bytes->[27];;
+ $tras = $bytes->[30];
+
+ printl "tCL-tRCD-tRP-tRAS",
+ $cas[$#cas] . "-" .
+ ceil($trcd/$ctime) . "-" .
+ ceil($trp/$ctime) . "-" .
+ ceil($tras/$ctime);
+
+ $l = "Number of Row Address Bits";
+ if ($bytes->[3] == 0) { printl $l, "Undefined!"; }
+ elsif ($bytes->[3] == 1) { printl $l, "1/16"; }
+ elsif ($bytes->[3] == 2) { printl $l, "2/17"; }
+ elsif ($bytes->[3] == 3) { printl $l, "3/18"; }
+ else { printl $l, $bytes->[3]; }
+
+ $l = "Number of Col Address Bits";
+ if ($bytes->[4] == 0) { printl $l, "Undefined!"; }
+ elsif ($bytes->[4] == 1) { printl $l, "1/16"; }
+ elsif ($bytes->[4] == 2) { printl $l, "2/17"; }
+ elsif ($bytes->[4] == 3) { printl $l, "3/18"; }
+ else { printl $l, $bytes->[4]; }
+
+ $l = "Number of Module Rows";
+ if ($bytes->[5] == 0 ) { printl $l, "Undefined!"; }
+ else { printl $l, $bytes->[5]; }
+
+ $l = "Data Width";
+ if ($bytes->[7] > 1) {
+ printl $l, "Undefined!"
+ } else {
+ $temp = ($bytes->[7] * 256) + $bytes->[6];
+ printl $l, $temp;
+ }
+
+ $l = "Module Interface Signal Levels";
+ if ($bytes->[8] == 0) { printl $l, "5.0 Volt/TTL"; }
+ elsif ($bytes->[8] == 1) { printl $l, "LVTTL"; }
+ elsif ($bytes->[8] == 2) { printl $l, "HSTL 1.5"; }
+ elsif ($bytes->[8] == 3) { printl $l, "SSTL 3.3"; }
+ elsif ($bytes->[8] == 4) { printl $l, "SSTL 2.5"; }
+ elsif ($bytes->[8] == 255) { printl $l, "New Table"; }
+ else { printl $l, "Undefined!"; }
+
+ $l = "Module Configuration Type";
+ if ($bytes->[11] == 0) { printl $l, "No Parity"; }
+ elsif ($bytes->[11] == 1) { printl $l, "Parity"; }
+ elsif ($bytes->[11] == 2) { printl $l, "ECC"; }
+ else { printl $l, "Undefined!"; }
+
+ $l = "Refresh Type";
+ if ($bytes->[12] > 126) { printl $l, "Self Refreshing"; }
+ else { printl $l, "Not Self Refreshing"; }
+
+ $l = "Refresh Rate";
+ $temp = $bytes->[12] & 0x7f;
+ if ($temp == 0) { printl $l, "Normal (15.625 us)"; }
+ elsif ($temp == 1) { printl $l, "Reduced (3.9 us)"; }
+ elsif ($temp == 2) { printl $l, "Reduced (7.8 us)"; }
+ elsif ($temp == 3) { printl $l, "Extended (31.3 us)"; }
+ elsif ($temp == 4) { printl $l, "Extended (62.5 us)"; }
+ elsif ($temp == 5) { printl $l, "Extended (125 us)"; }
+ else { printl $l, "Undefined!"; }
+
+ $l = "Primary SDRAM Component Bank Config";
+ if ($bytes->[13] > 126) { printl $l, "Bank2 = 2 x Bank1"; }
+ else { printl $l, "No Bank2 OR Bank2 = Bank1 width"; }
+
+ $l = "Primary SDRAM Component Widths";
+ $temp = $bytes->[13] & 0x7f;
+ if ($temp == 0) { printl $l, "Undefined!\n"; }
+ else { printl $l, $temp; }
+
+ $l = "Error Checking SDRAM Component Bank Config";
+ if ($bytes->[14] > 126) { printl $l, "Bank2 = 2 x Bank1"; }
+ else { printl $l, "No Bank2 OR Bank2 = Bank1 width"; }
+
+ $l = "Error Checking SDRAM Component Widths";
+ $temp = $bytes->[14] & 0x7f;
+ if ($temp == 0) { printl $l, "Undefined!"; }
+ else { printl $l, $temp; }
+
+ $l = "Min Clock Delay for Back to Back Random Access";
+ if ($bytes->[15] == 0) { printl $l, "Undefined!"; }
+ else { printl $l, $bytes->[15]; }
+
+ $l = "Supported Burst Lengths";
+ my @array;
+ for ($ii = 0; $ii < 4; $ii++) {
+ push(@array, 1 << $ii) if ($bytes->[16] & (1 << $ii));
+ }
+ push(@array, "Page") if ($bytes->[16] & 128);
+ if (@array) { $temp = join ', ', @array; }
+ else { $temp = "None"; }
+ printl $l, $temp;
+
+ $l = "Number of Device Banks";
+ if ($bytes->[17] == 0) { printl $l, "Undefined/Reserved!"; }
+ else { printl $l, $bytes->[17]; }
+
+ $l = "Supported CAS Latencies";
+ printl $l, cas_latencies(@cas);
+
+ $l = "Supported CS Latencies";
+ @array = ();
+ for ($ii = 0; $ii < 7; $ii++) {
+ push(@array, $ii) if ($bytes->[19] & (1 << $ii));
+ }
+ if (@array) { $temp = join ', ', @array; }
+ else { $temp = "None"; }
+ printl $l, $temp;
+
+ $l = "Supported WE Latencies";
+ @array = ();
+ for ($ii = 0; $ii < 7; $ii++) {
+ push(@array, $ii) if ($bytes->[20] & (1 << $ii));
+ }
+ if (@array) { $temp = join ', ', @array; }
+ else { $temp = "None"; }
+ printl $l, $temp;
+
+ if (@cas >= 1) {
+ $l = "Cycle Time at CAS ".$cas[$#cas];
+ printl $l, "$ctime ns";
+
+ $l = "Access Time at CAS ".$cas[$#cas];
+ $temp = ($bytes->[10] >> 4) + ($bytes->[10] & 0xf) * 0.1;
+ printl $l, "$temp ns";
+ }
+
+ if (@cas >= 2 && spd_written(@$bytes[23..24])) {
+ $l = "Cycle Time at CAS ".$cas[$#cas-1];
+ $temp = $bytes->[23] >> 4;
+ if ($temp == 0) { printl $l, "Undefined!"; }
+ else {
+ if ($temp < 4 ) { $temp += 15; }
+ printl $l, $temp + (($bytes->[23] & 0xf) * 0.1) . " ns";
+ }
+
+ $l = "Access Time at CAS ".$cas[$#cas-1];
+ $temp = $bytes->[24] >> 4;
+ if ($temp == 0) { printl $l, "Undefined!"; }
+ else {
+ if ($temp < 4 ) { $temp += 15; }
+ printl $l, $temp + (($bytes->[24] & 0xf) * 0.1) . " ns";
+ }
+ }
+
+ if (@cas >= 3 && spd_written(@$bytes[25..26])) {
+ $l = "Cycle Time at CAS ".$cas[$#cas-2];
+ $temp = $bytes->[25] >> 2;
+ if ($temp == 0) { printl $l, "Undefined!"; }
+ else { printl $l, $temp + ($bytes->[25] & 0x3) * 0.25 . " ns"; }
+
+ $l = "Access Time at CAS ".$cas[$#cas-2];
+ $temp = $bytes->[26] >> 2;
+ if ($temp == 0) { printl $l, "Undefined!"; }
+ else { printl $l, $temp + ($bytes->[26] & 0x3) * 0.25 . " ns"; }
+ }
+
+ $l = "SDRAM Module Attributes";
+ $temp = "";
+ if ($bytes->[21] & 1) { $temp .= "Buffered Address/Control Inputs\n"; }
+ if ($bytes->[21] & 2) { $temp .= "Registered Address/Control Inputs\n"; }
+ if ($bytes->[21] & 4) { $temp .= "On card PLL (clock)\n"; }
+ if ($bytes->[21] & 8) { $temp .= "Buffered DQMB Inputs\n"; }
+ if ($bytes->[21] & 16) { $temp .= "Registered DQMB Inputs\n"; }
+ if ($bytes->[21] & 32) { $temp .= "Differential Clock Input\n"; }
+ if ($bytes->[21] & 64) { $temp .= "Redundant Row Address\n"; }
+ if ($bytes->[21] & 128) { $temp .= "Undefined (bit 7)\n"; }
+ if ($bytes->[21] == 0) { $temp .= "(None Reported)\n"; }
+ printl $l, $temp;
+
+ $l = "SDRAM Device Attributes (General)";
+ $temp = "";
+ if ($bytes->[22] & 1) { $temp .= "Supports Early RAS# Recharge\n"; }
+ if ($bytes->[22] & 2) { $temp .= "Supports Auto-Precharge\n"; }
+ if ($bytes->[22] & 4) { $temp .= "Supports Precharge All\n"; }
+ if ($bytes->[22] & 8) { $temp .= "Supports Write1/Read Burst\n"; }
+ if ($bytes->[22] & 16) { $temp .= "Lower VCC Tolerance: 5%\n"; }
+ else { $temp .= "Lower VCC Tolerance: 10%\n"; }
+ if ($bytes->[22] & 32) { $temp .= "Upper VCC Tolerance: 5%\n"; }
+ else { $temp .= "Upper VCC Tolerance: 10%\n"; }
+ if ($bytes->[22] & 64) { $temp .= "Undefined (bit 6)\n"; }
+ if ($bytes->[22] & 128) { $temp .= "Undefined (bit 7)\n"; }
+ printl $l, $temp;
+
+ $l = "Minimum Row Precharge Time";
+ if ($bytes->[27] == 0) { printl $l, "Undefined!"; }
+ else { printl $l, "$bytes->[27] ns"; }
+
+ $l = "Row Active to Row Active Min";
+ if ($bytes->[28] == 0) { printl $l, "Undefined!"; }
+ else { printl $l, "$bytes->[28] ns"; }
+
+ $l = "RAS to CAS Delay";
+ if ($bytes->[29] == 0) { printl $l, "Undefined!"; }
+ else { printl $l, "$bytes->[29] ns"; }
+
+ $l = "Min RAS Pulse Width";
+ if ($bytes->[30] == 0) { printl $l, "Undefined!"; }
+ else { printl $l, "$bytes->[30] ns"; }
+
+ $l = "Row Densities";
+ $temp = "";
+ if ($bytes->[31] & 1) { $temp .= "4 MByte\n"; }
+ if ($bytes->[31] & 2) { $temp .= "8 MByte\n"; }
+ if ($bytes->[31] & 4) { $temp .= "16 MByte\n"; }
+ if ($bytes->[31] & 8) { $temp .= "32 MByte\n"; }
+ if ($bytes->[31] & 16) { $temp .= "64 MByte\n"; }
+ if ($bytes->[31] & 32) { $temp .= "128 MByte\n"; }
+ if ($bytes->[31] & 64) { $temp .= "256 MByte\n"; }
+ if ($bytes->[31] & 128) { $temp .= "512 MByte\n"; }
+ if ($bytes->[31] == 0) { $temp .= "(Undefined! -- None Reported!)\n"; }
+ printl $l, $temp;
+
+ if (($bytes->[32] & 0xf) <= 9) {
+ $l = "Command and Address Signal Setup Time";
+ $temp = (($bytes->[32] & 0x7f) >> 4) + ($bytes->[32] & 0xf) * 0.1;
+ printl $l, (($bytes->[32] >> 7) ? -$temp : $temp) . " ns";
+ }
+
+ if (($bytes->[33] & 0xf) <= 9) {
+ $l = "Command and Address Signal Hold Time";
+ $temp = (($bytes->[33] & 0x7f) >> 4) + ($bytes->[33] & 0xf) * 0.1;
+ printl $l, (($bytes->[33] >> 7) ? -$temp : $temp) . " ns";
+ }
+
+ if (($bytes->[34] & 0xf) <= 9) {
+ $l = "Data Signal Setup Time";
+ $temp = (($bytes->[34] & 0x7f) >> 4) + ($bytes->[34] & 0xf) * 0.1;
+ printl $l, (($bytes->[34] >> 7) ? -$temp : $temp) . " ns";
+ }
+
+ if (($bytes->[35] & 0xf) <= 9) {
+ $l = "Data Signal Hold Time";
+ $temp = (($bytes->[35] & 0x7f) >> 4) + ($bytes->[35] & 0xf) * 0.1;
+ printl $l, (($bytes->[35] >> 7) ? -$temp : $temp) . " ns";
+ }
+}
+
+# Parameter: bytes 0-63
+sub decode_ddr_sdram($)
+{
+ my $bytes = shift;
+ my ($l, $temp);
+
+# SPD revision
+ if ($bytes->[62] != 0xff) {
+ printl "SPD Revision", ($bytes->[62] >> 4) . "." .
+ ($bytes->[62] & 0xf);
+ }
+
+# speed
+ prints "Memory Characteristics";
+
+ $l = "Maximum module speed";
+ $temp = ($bytes->[9] >> 4) + ($bytes->[9] & 0xf) * 0.1;
+ my $ddrclk = 2 * (1000 / $temp);
+ my $tbits = ($bytes->[7] * 256) + $bytes->[6];
+ if (($bytes->[11] == 2) || ($bytes->[11] == 1)) { $tbits = $tbits - 8; }
+ my $pcclk = int ($ddrclk * $tbits / 8);
+ $pcclk += 100 if ($pcclk % 100) >= 50; # Round properly
+ $pcclk = $pcclk - ($pcclk % 100);
+ $ddrclk = int ($ddrclk);
+ printl $l, "${ddrclk}MHz (PC${pcclk})";
+
+#size computation
+ my $k = 0;
+ my $ii = 0;
+
+ $ii = ($bytes->[3] & 0x0f) + ($bytes->[4] & 0x0f) - 17;
+ if (($bytes->[5] <= 8) && ($bytes->[17] <= 8)) {
+ $k = $bytes->[5] * $bytes->[17];
+ }
+
+ if ($ii > 0 && $ii <= 12 && $k > 0) {
+ printl "Size", ((1 << $ii) * $k) . " MB";
+ } else {
+ printl "INVALID SIZE", $bytes->[3] . ", " . $bytes->[4] . ", " .
+ $bytes->[5] . ", " . $bytes->[17];
+ }
+
+ my $highestCAS = 0;
+ my %cas;
+ for ($ii = 0; $ii < 7; $ii++) {
+ if ($bytes->[18] & (1 << $ii)) {
+ $highestCAS = 1+$ii*0.5;
+ $cas{$highestCAS}++;
+ }
+ }
+
+ my $trcd;
+ my $trp;
+ my $tras;
+ my $ctime = ($bytes->[9] >> 4) + ($bytes->[9] & 0xf) * 0.1;
+
+ $trcd = ($bytes->[29] >> 2) + (($bytes->[29] & 3) * 0.25);
+ $trp = ($bytes->[27] >> 2) + (($bytes->[27] & 3) * 0.25);
+ $tras = $bytes->[30];
+
+ printl "tCL-tRCD-tRP-tRAS",
+ $highestCAS . "-" .
+ ceil($trcd/$ctime) . "-" .
+ ceil($trp/$ctime) . "-" .
+ ceil($tras/$ctime);
+
+# latencies
+ printl "Supported CAS Latencies", cas_latencies(keys %cas);
+
+ my @array;
+ for ($ii = 0; $ii < 7; $ii++) {
+ push(@array, $ii) if ($bytes->[19] & (1 << $ii));
+ }
+ if (@array) { $temp = join ', ', @array; }
+ else { $temp = "None"; }
+ printl "Supported CS Latencies", $temp;
+
+ @array = ();
+ for ($ii = 0; $ii < 7; $ii++) {
+ push(@array, $ii) if ($bytes->[20] & (1 << $ii));
+ }
+ if (@array) { $temp = join ', ', @array; }
+ else { $temp = "None"; }
+ printl "Supported WE Latencies", $temp;
+
+# timings
+ if (exists $cas{$highestCAS}) {
+ printl "Minimum Cycle Time at CAS $highestCAS",
+ "$ctime ns";
+
+ printl "Maximum Access Time at CAS $highestCAS",
+ (($bytes->[10] >> 4) * 0.1 + ($bytes->[10] & 0xf) * 0.01) . " ns";
+ }
+
+ if (exists $cas{$highestCAS-0.5} && spd_written(@$bytes[23..24])) {
+ printl "Minimum Cycle Time at CAS ".($highestCAS-0.5),
+ (($bytes->[23] >> 4) + ($bytes->[23] & 0xf) * 0.1) . " ns";
+
+ printl "Maximum Access Time at CAS ".($highestCAS-0.5),
+ (($bytes->[24] >> 4) * 0.1 + ($bytes->[24] & 0xf) * 0.01) . " ns";
+ }
+
+ if (exists $cas{$highestCAS-1} && spd_written(@$bytes[25..26])) {
+ printl "Minimum Cycle Time at CAS ".($highestCAS-1),
+ (($bytes->[25] >> 4) + ($bytes->[25] & 0xf) * 0.1) . " ns";
+
+ printl "Maximum Access Time at CAS ".($highestCAS-1),
+ (($bytes->[26] >> 4) * 0.1 + ($bytes->[26] & 0xf) * 0.01) . " ns";
+ }
+
+# module attributes
+ if ($bytes->[47] & 0x03) {
+ if (($bytes->[47] & 0x03) == 0x01) { $temp = "1.125\" to 1.25\""; }
+ elsif (($bytes->[47] & 0x03) == 0x02) { $temp = "1.7\""; }
+ elsif (($bytes->[47] & 0x03) == 0x03) { $temp = "Other"; }
+ printl "Module Height", $temp;
+ }
+}
+
+sub ddr2_sdram_ctime($)
+{
+ my $byte = shift;
+ my $ctime;
+
+ $ctime = $byte >> 4;
+ if (($byte & 0xf) <= 9) { $ctime += ($byte & 0xf) * 0.1; }
+ elsif (($byte & 0xf) == 10) { $ctime += 0.25; }
+ elsif (($byte & 0xf) == 11) { $ctime += 0.33; }
+ elsif (($byte & 0xf) == 12) { $ctime += 0.66; }
+ elsif (($byte & 0xf) == 13) { $ctime += 0.75; }
+
+ return $ctime;
+}
+
+sub ddr2_sdram_atime($)
+{
+ my $byte = shift;
+ my $atime;
+
+ $atime = ($byte >> 4) * 0.1 + ($byte & 0xf) * 0.01;
+
+ return $atime;
+}
+
+# Base, high-bit, 3-bit fraction code
+sub ddr2_sdram_rtime($$$)
+{
+ my ($rtime, $msb, $ext) = @_;
+ my @table = (0, .25, .33, .50, .66, .75);
+
+ return $rtime + $msb * 256 + $table[$ext];
+}
+
+sub ddr2_module_types($)
+{
+ my $byte = shift;
+ my @types = qw(RDIMM UDIMM SO-DIMM Micro-DIMM Mini-RDIMM Mini-UDIMM);
+ my @widths = (133.35, 133.25, 67.6, 45.5, 82.0, 82.0);
+ my @suptypes;
+ local $_;
+
+ foreach (0..5) {
+ push @suptypes, "$types[$_] ($widths[$_] mm)"
+ if ($byte & (1 << $_));
+ }
+
+ return @suptypes;
+}
+
+sub ddr2_refresh_rate($)
+{
+ my $byte = shift;
+ my @refresh = qw(Normal Reduced Reduced Extended Extended Extended);
+ my @refresht = (15.625, 3.9, 7.8, 31.3, 62.5, 125);
+
+ return "$refresh[$byte & 0x7f] ($refresht[$byte & 0x7f] us)".
+ ($byte & 0x80 ? " - Self Refresh" : "");
+}
+
+# Parameter: bytes 0-63
+sub decode_ddr2_sdram($)
+{
+ my $bytes = shift;
+ my ($l, $temp);
+ my $ctime;
+
+# SPD revision
+ if ($bytes->[62] != 0xff) {
+ printl "SPD Revision", ($bytes->[62] >> 4) . "." .
+ ($bytes->[62] & 0xf);
+ }
+
+# speed
+ prints "Memory Characteristics";
+
+ $l = "Maximum module speed";
+ $ctime = ddr2_sdram_ctime($bytes->[9]);
+ my $ddrclk = 2 * (1000 / $ctime);
+ my $tbits = ($bytes->[7] * 256) + $bytes->[6];
+ if ($bytes->[11] & 0x03) { $tbits = $tbits - 8; }
+ my $pcclk = int ($ddrclk * $tbits / 8);
+ # Round down to comply with Jedec
+ $pcclk = $pcclk - ($pcclk % 100);
+ $ddrclk = int ($ddrclk);
+ printl $l, "${ddrclk}MHz (PC2-${pcclk})";
+
+#size computation
+ my $k = 0;
+ my $ii = 0;
+
+ $ii = ($bytes->[3] & 0x0f) + ($bytes->[4] & 0x0f) - 17;
+ $k = (($bytes->[5] & 0x7) + 1) * $bytes->[17];
+
+ if($ii > 0 && $ii <= 12 && $k > 0) {
+ printl "Size", ((1 << $ii) * $k) . " MB";
+ } else {
+ printl "INVALID SIZE", $bytes->[3] . "," . $bytes->[4] . "," .
+ $bytes->[5] . "," . $bytes->[17];
+ }
+
+ printl "Banks x Rows x Columns x Bits",
+ join(' x ', $bytes->[17], $bytes->[3], $bytes->[4], $bytes->[6]);
+ printl "Ranks", ($bytes->[5] & 7) + 1;
+
+ printl "SDRAM Device Width", $bytes->[13]." bits";
+
+ my @heights = ('< 25.4', '25.4', '25.4 - 30.0', '30.0', '30.5', '> 30.5');
+ printl "Module Height", $heights[$bytes->[5] >> 5]." mm";
+
+ my @suptypes = ddr2_module_types($bytes->[20]);
+ printl "Module Type".(@suptypes > 1 ? 's' : ''), join(', ', @suptypes);
+
+ printl "DRAM Package", $bytes->[5] & 0x10 ? "Stack" : "Planar";
+
+ my @volts = ("TTL (5V Tolerant)", "LVTTL", "HSTL 1.5V",
+ "SSTL 3.3V", "SSTL 2.5V", "SSTL 1.8V", "TBD");
+ printl "Voltage Interface Level", $volts[$bytes->[8]];
+
+ printl "Refresh Rate", ddr2_refresh_rate($bytes->[12]);
+
+ my @burst;
+ push @burst, 4 if ($bytes->[16] & 4);
+ push @burst, 8 if ($bytes->[16] & 8);
+ $burst[0] = 'None' if !@burst;
+ printl "Supported Burst Lengths", join(', ', @burst);
+
+ my $highestCAS = 0;
+ my %cas;
+ for ($ii = 2; $ii < 7; $ii++) {
+ if ($bytes->[18] & (1 << $ii)) {
+ $highestCAS = $ii;
+ $cas{$highestCAS}++;
+ }
+ }
+
+ my $trcd;
+ my $trp;
+ my $tras;
+
+ $trcd = ($bytes->[29] >> 2) + (($bytes->[29] & 3) * 0.25);
+ $trp = ($bytes->[27] >> 2) + (($bytes->[27] & 3) * 0.25);
+ $tras = $bytes->[30];
+
+ printl "tCL-tRCD-tRP-tRAS",
+ $highestCAS . "-" .
+ ceil($trcd/$ctime) . "-" .
+ ceil($trp/$ctime) . "-" .
+ ceil($tras/$ctime);
+
+# latencies
+ printl "Supported CAS Latencies (tCL)", cas_latencies(keys %cas);
+
+# timings
+ if (exists $cas{$highestCAS}) {
+ printl "Minimum Cycle Time at CAS $highestCAS (tCK min)",
+ tns($ctime);
+ printl "Maximum Access Time at CAS $highestCAS (tAC)",
+ tns(ddr2_sdram_atime($bytes->[10]));
+ }
+
+ if (exists $cas{$highestCAS-1} && spd_written(@$bytes[23..24])) {
+ printl "Minimum Cycle Time at CAS ".($highestCAS-1),
+ tns(ddr2_sdram_ctime($bytes->[23]));
+ printl "Maximum Access Time at CAS ".($highestCAS-1),
+ tns(ddr2_sdram_atime($bytes->[24]));
+ }
+
+ if (exists $cas{$highestCAS-2} && spd_written(@$bytes[25..26])) {
+ printl "Minimum Cycle Time at CAS ".($highestCAS-2),
+ tns(ddr2_sdram_ctime($bytes->[25]));
+ printl "Maximum Access Time at CAS ".($highestCAS-2),
+ tns(ddr2_sdram_atime($bytes->[26]));
+ }
+ printl "Maximum Cycle Time (tCK max)",
+ tns(ddr2_sdram_ctime($bytes->[43]));
+
+# more timing information
+ prints("Timing Parameters");
+ printl "Address/Command Setup Time Before Clock (tIS)",
+ tns(ddr2_sdram_atime($bytes->[32]));
+ printl "Address/Command Hold Time After Clock (tIH)",
+ tns(ddr2_sdram_atime($bytes->[33]));
+ printl "Data Input Setup Time Before Strobe (tDS)",
+ tns(ddr2_sdram_atime($bytes->[34]));
+ printl "Data Input Hold Time After Strobe (tDH)",
+ tns(ddr2_sdram_atime($bytes->[35]));
+ printl "Minimum Row Precharge Delay (tRP)", tns($trp);
+ printl "Minimum Row Active to Row Active Delay (tRRD)",
+ tns($bytes->[28]/4);
+ printl "Minimum RAS# to CAS# Delay (tRCD)", tns($trcd);
+ printl "Minimum RAS# Pulse Width (tRAS)", tns($tras);
+ printl "Write Recovery Time (tWR)", tns($bytes->[36]/4);
+ printl "Minimum Write to Read CMD Delay (tWTR)", tns($bytes->[37]/4);
+ printl "Minimum Read to Pre-charge CMD Delay (tRTP)", tns($bytes->[38]/4);
+ printl "Minimum Active to Auto-refresh Delay (tRC)",
+ tns(ddr2_sdram_rtime($bytes->[41], 0, ($bytes->[40] >> 4) & 7));
+ printl "Minimum Recovery Delay (tRFC)",
+ tns(ddr2_sdram_rtime($bytes->[42], $bytes->[40] & 1,
+ ($bytes->[40] >> 1) & 7));
+ printl "Maximum DQS to DQ Skew (tDQSQ)", tns($bytes->[44]/100);
+ printl "Maximum Read Data Hold Skew (tQHS)", tns($bytes->[45]/100);
+ printl "PLL Relock Time", $bytes->[46] . " us" if ($bytes->[46]);
+}
+
+# Parameter: bytes 0-63
+sub decode_direct_rambus($)
+{
+ my $bytes = shift;
+
+#size computation
+ prints "Memory Characteristics";
+
+ my $ii;
+
+ $ii = ($bytes->[4] & 0x0f) + ($bytes->[4] >> 4) + ($bytes->[5] & 0x07) - 13;
+
+ if ($ii > 0 && $ii < 16) {
+ printl "Size", (1 << $ii) . " MB";
+ } else {
+ printl "INVALID SIZE", sprintf("0x%02x, 0x%02x",
+ $bytes->[4], $bytes->[5]);
+ }
+}
+
+# Parameter: bytes 0-63
+sub decode_rambus($)
+{
+ my $bytes = shift;
+
+#size computation
+ prints "Memory Characteristics";
+
+ my $ii;
+
+ $ii = ($bytes->[3] & 0x0f) + ($bytes->[3] >> 4) + ($bytes->[5] & 0x07) - 13;
+
+ if ($ii > 0 && $ii < 16) {
+ printl "Size", (1 << $ii) . " MB";
+ } else {
+ printl "INVALID SIZE", sprintf("0x%02x, 0x%02x",
+ $bytes->[3], $bytes->[5]);
+ }
+}
+
+%decode_callback = (
+ "SDR SDRAM" => \&decode_sdr_sdram,
+ "DDR SDRAM" => \&decode_ddr_sdram,
+ "DDR2 SDRAM" => \&decode_ddr2_sdram,
+ "Direct Rambus" => \&decode_direct_rambus,
+ "Rambus" => \&decode_rambus,
+);
+
+# Parameter: bytes 64-127
+sub decode_intel_spec_freq($)
+{
+ my $bytes = shift;
+ my ($l, $temp);
+
+ prints "Intel Specification";
+
+ $l = "Frequency";
+ if ($bytes->[62] == 0x66) { $temp = "66MHz\n"; }
+ elsif ($bytes->[62] == 100) { $temp = "100MHz or 133MHz\n"; }
+ elsif ($bytes->[62] == 133) { $temp = "133MHz\n"; }
+ else { $temp = "Undefined!\n"; }
+ printl $l, $temp;
+
+ $l = "Details for 100MHz Support";
+ $temp = "";
+ if ($bytes->[63] & 1) { $temp .= "Intel Concurrent Auto-precharge\n"; }
+ if ($bytes->[63] & 2) { $temp .= "CAS Latency = 2\n"; }
+ if ($bytes->[63] & 4) { $temp .= "CAS Latency = 3\n"; }
+ if ($bytes->[63] & 8) { $temp .= "Junction Temp A (100 degrees C)\n"; }
+ else { $temp .= "Junction Temp B (90 degrees C)\n"; }
+ if ($bytes->[63] & 16) { $temp .= "CLK 3 Connected\n"; }
+ if ($bytes->[63] & 32) { $temp .= "CLK 2 Connected\n"; }
+ if ($bytes->[63] & 64) { $temp .= "CLK 1 Connected\n"; }
+ if ($bytes->[63] & 128) { $temp .= "CLK 0 Connected\n"; }
+ if (($bytes->[63] & 192) == 192) { $temp .= "Double-sided DIMM\n"; }
+ elsif (($bytes->[63] & 192) != 0) { $temp .= "Single-sided DIMM\n"; }
+ printl $l, $temp;
+}
+
+# Read various hex dump style formats: hexdump, hexdump -C, i2cdump, eeprog
+# note that normal 'hexdump' format on a little-endian system byte-swaps
+# words, using hexdump -C is better.
+sub read_hexdump($)
+{
+ my $addr = 0;
+ my $repstart = 0;
+ my @bytes;
+ my $header = 1;
+ my $word = 0;
+
+ # Look in the cache first
+ return @{$hexdump_cache{$_[0]}} if exists $hexdump_cache{$_[0]};
+
+ open F, '<', $_[0] or die "Unable to open: $_[0]";
+ while (<F>) {
+ chomp;
+ if (/^\*$/) {
+ $repstart = $addr;
+ next;
+ }
+ /^(?:0000 )?([a-f\d]{2,8}):?\s+((:?[a-f\d]{4}\s*){8}|(:?[a-f\d]{2}\s*){16})/i ||
+ /^(?:0000 )?([a-f\d]{2,8}):?\s*$/i;
+ next if (!defined $1 && $header); # skip leading unparsed lines
+
+ defined $1 or die "Unable to parse input";
+ $header = 0;
+
+ $addr = hex $1;
+ if ($repstart) {
+ @bytes[$repstart .. ($addr-1)] =
+ (@bytes[($repstart-16)..($repstart-1)]) x (($addr-$repstart)/16);
+ $repstart = 0;
+ }
+ last unless defined $2;
+ foreach (split(/\s+/, $2)) {
+ if (/^(..)(..)$/) {
+ $word |= 1;
+ if ($use_hexdump eq LITTLEENDIAN) {
+ $bytes[$addr++] = hex($2);
+ $bytes[$addr++] = hex($1);
+ } else {
+ $bytes[$addr++] = hex($1);
+ $bytes[$addr++] = hex($2);
+ }
+ } else {
+ $bytes[$addr++] = hex($_);
+ }
+ }
+ }
+ close F;
+ $header and die "Unable to parse any data from hexdump '$_[0]'";
+ $word and printc "Using $use_hexdump 16-bit hex dump";
+
+ # Cache the data for later use
+ $hexdump_cache{$_[0]} = \@bytes;
+ return @bytes;
+}
+
+sub readspd64($$) # reads 64 bytes from SPD-EEPROM
+{
+ my ($offset, $dimm_i) = @_;
+ my @bytes;
+ if ($use_hexdump) {
+ @bytes = read_hexdump($dimm_i);
+ return @bytes[$offset..($offset+63)];
+ } elsif ($use_sysfs) {
+ # Kernel 2.6 with sysfs
+ sysopen(HANDLE, "/sys/bus/i2c/drivers/eeprom/$dimm_i/eeprom", O_RDONLY)
+ or die "Cannot open /sys/bus/i2c/drivers/eeprom/$dimm_i/eeprom";
+ binmode HANDLE;
+ sysseek(HANDLE, $offset, SEEK_SET);
+ sysread(HANDLE, my $eeprom, 64);
+ close HANDLE;
+ @bytes = unpack("C64", $eeprom);
+ } else {
+ # Kernel 2.4 with procfs
+ for my $i (0 .. 3) {
+ my $hexoff = sprintf('%02x', $offset + $i * 16);
+ push @bytes, split(" ", `cat /proc/sys/dev/sensors/$dimm_i/$hexoff`);
+ }
+ }
+ return @bytes;
+}
+
+# Parse command-line
+foreach (@ARGV) {
+ if ($_ eq '-h' || $_ eq '--help') {
+ print "Usage: $0 [-c] [-f [-b]] [-x|-X file [files..]]\n",
+ " $0 -h\n\n",
+ " -f, --format Print nice html output\n",
+ " -b, --bodyonly Don't print html header\n",
+ " (useful for postprocessing the output)\n",
+ " -c, --checksum Decode completely even if checksum fails\n",
+ " -x, Read data from hexdump files\n",
+ " -X, Same as -x except treat multibyte hex\n",
+ " data as little endian\n",
+ " -h, --help Display this usage summary\n";
+ print <<"EOF";
+
+Hexdumps can be the output from hexdump, hexdump -C, i2cdump, eeprog and
+likely many other progams producing hex dumps of one kind or another. Note
+that the default output of "hexdump" will be byte-swapped on little-endian
+systems and you must use -X instead of -x, otherwise the dump will not be
+parsed correctly. It is better to use "hexdump -C", which is not ambiguous.
+EOF
+ exit;
+ }
+
+ if ($_ eq '-f' || $_ eq '--format') {
+ $opt_html = 1;
+ next;
+ }
+ if ($_ eq '-b' || $_ eq '--bodyonly') {
+ $opt_bodyonly = 1;
+ next;
+ }
+ if ($_ eq '-c' || $_ eq '--checksum') {
+ $opt_igncheck = 1;
+ next;
+ }
+ if ($_ eq '-x') {
+ $use_hexdump = BIGENDIAN;
+ next;
+ }
+ if ($_ eq '-X') {
+ $use_hexdump = LITTLEENDIAN;
+ next;
+ }
+
+ if (m/^-/) {
+ print STDERR "Unrecognized option $_\n";
+ exit;
+ }
+
+ push @dimm_list, $_ if $use_hexdump;
+}
+
+if ($opt_html && !$opt_bodyonly) {
+ print "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 3.2 Final//EN\">\n",
+ "<html><head>\n",
+ "\t<meta HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; charset=iso-8859-1\">\n",
+ "\t<title>PC DIMM Serial Presence Detect Tester/Decoder Output</title>\n",
+ "</head><body>\n";
+}
+
+printc "decode-dimms version $revision";
+printh 'Memory Serial Presence Detect Decoder',
+'By Philip Edelbrock, Christian Zuckschwerdt, Burkart Lingner,
+Jean Delvare, Trent Piepho and others';
+
+
+my $dimm_count = 0;
+my $dir;
+if (!$use_hexdump) {
+ if ($use_sysfs) { $dir = '/sys/bus/i2c/drivers/eeprom'; }
+ else { $dir = '/proc/sys/dev/sensors'; }
+ if (-d $dir) {
+ @dimm_list = split(/\s+/, `ls $dir`);
+ } elsif (! -d '/sys/module/eeprom') {
+ print "No EEPROM found, are you sure the eeprom module is loaded?\n";
+ exit;
+ }
+}
+
+for my $i ( 0 .. $#dimm_list ) {
+ $_ = $dimm_list[$i];
+ if (($use_sysfs && /^\d+-\d+$/)
+ || (!$use_sysfs && /^eeprom-/)
+ || $use_hexdump) {
+ my @bytes = readspd64(0, $dimm_list[$i]);
+ my $dimm_checksum = 0;
+ $dimm_checksum += $bytes[$_] foreach (0 .. 62);
+ $dimm_checksum &= 0xff;
+
+ next unless $bytes[63] == $dimm_checksum || $opt_igncheck;
+ $dimm_count++;
+
+ print "<b><u>" if $opt_html;
+ printl2 "\n\nDecoding EEPROM",
+ $use_hexdump ? $dimm_list[$i] : ($use_sysfs ?
+ "/sys/bus/i2c/drivers/eeprom/$dimm_list[$i]" :
+ "/proc/sys/dev/sensors/$dimm_list[$i]");
+ print "</u></b>" if $opt_html;
+ print "<table border=1>\n" if $opt_html;
+ if (!$use_hexdump) {
+ if (($use_sysfs && /^[^-]+-([^-]+)$/)
+ || (!$use_sysfs && /^[^-]+-[^-]+-[^-]+-([^-]+)$/)) {
+ my $dimm_num = $1 - 49;
+ printl "Guessing DIMM is in", "bank $dimm_num";
+ }
+ }
+
+# Decode first 3 bytes (0-2)
+ prints "SPD EEPROM Information";
+
+ my $l = "EEPROM Checksum of bytes 0-62";
+ printl $l, ($bytes[63] == $dimm_checksum ?
+ sprintf("OK (0x%.2X)", $bytes[63]):
+ sprintf("Bad\n(found 0x%.2X, calculated 0x%.2X)\n",
+ $bytes[63], $dimm_checksum));
+
+ # Simple heuristic to detect Rambus
+ my $is_rambus = $bytes[0] < 4;
+ my $temp;
+ if ($is_rambus) {
+ if ($bytes[0] == 1) { $temp = "0.7"; }
+ elsif ($bytes[0] == 2) { $temp = "1.0"; }
+ elsif ($bytes[0] == 0 || $bytes[0] == 255) { $temp = "Invalid"; }
+ else { $temp = "Reserved"; }
+ printl "SPD Revision", $temp;
+ } else {
+ printl "# of bytes written to SDRAM EEPROM",
+ $bytes[0];
+ }
+
+ $l = "Total number of bytes in EEPROM";
+ if ($bytes[1] <= 14) {
+ printl $l, 2**$bytes[1];
+ } elsif ($bytes[1] == 0) {
+ printl $l, "RFU";
+ } else { printl $l, "ERROR!"; }
+
+ $l = "Fundamental Memory type";
+ my $type = "Unknown";
+ if ($is_rambus) {
+ if ($bytes[2] == 1) { $type = "Direct Rambus"; }
+ elsif ($bytes[2] == 17) { $type = "Rambus"; }
+ } else {
+ if ($bytes[2] == 1) { $type = "FPM DRAM"; }
+ elsif ($bytes[2] == 2) { $type = "EDO"; }
+ elsif ($bytes[2] == 3) { $type = "Pipelined Nibble"; }
+ elsif ($bytes[2] == 4) { $type = "SDR SDRAM"; }
+ elsif ($bytes[2] == 5) { $type = "Multiplexed ROM"; }
+ elsif ($bytes[2] == 6) { $type = "DDR SGRAM"; }
+ elsif ($bytes[2] == 7) { $type = "DDR SDRAM"; }
+ elsif ($bytes[2] == 8) { $type = "DDR2 SDRAM"; }
+ }
+ printl $l, $type;
+
+# Decode next 61 bytes (3-63, depend on memory type)
+ $decode_callback{$type}->(\@bytes)
+ if exists $decode_callback{$type};
+
+# Decode next 35 bytes (64-98, common to all memory types)
+ prints "Manufacturing Information";
+
+ @bytes = readspd64(64, $dimm_list[$i]);
+
+ $l = "Manufacturer";
+ # $extra is a reference to an array containing up to
+ # 7 extra bytes from the Manufacturer field. Sometimes
+ # these bytes are filled with interesting data.
+ ($temp, my $extra) = manufacturer(@bytes[0..7]);
+ printl $l, $temp;
+ $l = "Custom Manufacturer Data";
+ $temp = manufacturer_data(@{$extra});
+ printl $l, $temp if defined $temp;
+
+ if (spd_written($bytes[8])) {
+ # Try the location code as ASCII first, as earlier specifications
+ # suggested this. As newer specifications don't mention it anymore,
+ # we still fall back to binary.
+ $l = "Manufacturing Location Code";
+ $temp = (chr($bytes[8]) =~ m/^[\w\d]$/) ? chr($bytes[8])
+ : sprintf("0x%.2X", $bytes[8]);
+ printl $l, $temp;
+ }
+
+ $l = "Part Number";
+ $temp = part_number(@bytes[9..26]);
+ printl $l, $temp;
+
+ if (spd_written(@bytes[27..28])) {
+ $l = "Revision Code";
+ $temp = sprintf("0x%02X%02X\n", @bytes[27..28]);
+ printl $l, $temp;
+ }
+
+ if (spd_written(@bytes[29..30])) {
+ $l = "Manufacturing Date";
+ # In theory the year and week are in BCD format, but
+ # this is not always true in practice :(
+ if (($bytes[29] & 0xf0) <= 0x90
+ && ($bytes[29] & 0x0f) <= 0x09
+ && ($bytes[30] & 0xf0) <= 0x90
+ && ($bytes[30] & 0x0f) <= 0x09) {
+ # Note that this heuristic will break in year 2080
+ $temp = sprintf("%d%02X-W%02X\n",
+ $bytes[29] >= 0x80 ? 19 : 20,
+ @bytes[29..30]);
+ } else {
+ $temp = sprintf("0x%02X%02X\n",
+ @bytes[29..30]);
+ }
+ printl $l, $temp;
+ }
+
+ if (spd_written(@bytes[31..34])) {
+ $l = "Assembly Serial Number";
+ $temp = sprintf("0x%02X%02X%02X%02X\n",
+ @bytes[31..34]);
+ printl $l, $temp;
+ }
+
+# Next 27 bytes (99-125) are manufacturer specific, can't decode
+
+# Last 2 bytes (126-127) are reserved, Intel used them as an extension
+ if ($type eq "SDR SDRAM") {
+ decode_intel_spec_freq(\@bytes);
+ }
+
+ print "</table>\n" if $opt_html;
+ }
+}
+printl2 "\n\nNumber of SDRAM DIMMs detected and decoded", $dimm_count;
+
+print "</body></html>\n" if ($opt_html && !$opt_bodyonly);
diff --git a/eeprom/decode-edid b/eeprom/decode-edid
new file mode 100755
index 0000000..15ba1a4
--- /dev/null
+++ b/eeprom/decode-edid
@@ -0,0 +1,225 @@
+#!/usr/bin/perl -w
+#
+# Copyright (C) 2003-2006 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., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301 USA.
+#
+# Version 0.1 2003-07-17 Jean Delvare <khali@linux-fr.org>
+# Version 0.2 2003-07-22 Jean Delvare <khali@linux-fr.org>
+# Use print instead of syswrite.
+# Version 0.3 2003-08-24 Jean Delvare <khali@linux-fr.org>
+# Fix data block length (128 bytes instead of 256).
+# Version 1.0 2004-02-08 Jean Delvare <khali@linux-fr.org>
+# Added support for Linux 2.5/2.6 (i.e. sysfs).
+# Version 1.1 2006-09-01 Jean Delvare <khali@linux-fr.org>
+# Append /usr/sbin or /usr/local/sbin to $PATH if needed.
+#
+# EEPROM data decoding for EDID. EDID (Extended Display Identification
+# Data) is a VESA standard which allows storing (on manufacturer's side)
+# and retrieving (on user's side) of configuration information about
+# displays, such as manufacturer, serial number, physical dimensions and
+# allowed horizontal and vertical refresh rates.
+#
+# Using the eeprom kernel driver, you have two possibilities to
+# make use of these data:
+# 1* The ddcmon script.
+# 2* This script.
+# Both solutions will return a different kind of information. The first
+# method will report user-interesting information, such as the model number
+# or the year of manufacturing. The second method will report video-card-
+# interesting information, such as video modes and refresh rates.
+#
+# Note that this script does almost nothing by itself. It simply converts
+# what it finds in /proc to binary data to feed the parse-edid program.
+# The parse-edid program was written by John Fremlin and is available at
+# the following address:
+# http://john.fremlin.de/programs/linux/read-edid/
+
+use strict;
+use Fcntl qw(:DEFAULT :seek);
+use vars qw($bus $address);
+use constant PROCFS => 1;
+use constant SYSFS => 2;
+
+# parse-edid will typically be installed in /usr/sbin or /usr/local/sbin
+# even though regular users can run it
+$ENV{PATH} .= ':/usr/local/sbin'
+ if $ENV{PATH} !~ m,(^|:)/usr/local/sbin/?(:|$),
+ && -x '/usr/local/sbin/parse-edid';
+$ENV{PATH} .= ':/usr/sbin'
+ if $ENV{PATH} !~ m,(^|:)/usr/sbin/?(:|$),
+ && -x '/usr/sbin/parse-edid';
+
+sub edid_valid_procfs
+{
+ my ($bus, $addr) = @_;
+
+ open EEDATA, "/proc/sys/dev/sensors/eeprom-i2c-$bus-$addr/00";
+ my $line = <EEDATA>;
+ close EEDATA;
+ return 1
+ if $line =~ m/^0 255 255 255 255 255 255 0 /;
+ return 0;
+}
+
+# Only used for sysfs
+sub rawread
+{
+ my ($filename, $length, $offset) = @_;
+ my $bytes = '';
+
+ sysopen(FH, $filename, O_RDONLY)
+ or die "Can't open $filename";
+ if ($offset)
+ {
+ sysseek(FH, $offset, SEEK_SET)
+ or die "Can't seek in $filename";
+ }
+
+ $offset = 0;
+ while ($length)
+ {
+ my $r = sysread(FH, $bytes, $length, $offset);
+ die "Can't read $filename"
+ unless defined($r);
+ die "Unexpected EOF in $filename"
+ unless $r;
+ $offset += $r;
+ $length -= $r;
+ }
+ close(FH);
+
+ return $bytes;
+}
+
+sub edid_valid_sysfs
+{
+ my ($bus, $addr) = @_;
+ my $bytes = rawread("/sys/bus/i2c/devices/$bus-00$addr/eeprom", 8, 0);
+
+ return 1
+ if $bytes eq "\x00\xFF\xFF\xFF\xFF\xFF\xFF\x00";
+ return 0;
+}
+
+sub bus_detect
+{
+ my $max = shift;
+
+ for (my $i=0; $i<$max; $i++)
+ {
+ if (-r "/proc/sys/dev/sensors/eeprom-i2c-$i-50/00")
+ {
+ if (edid_valid_procfs($i, '50'))
+ {
+ print STDERR
+ "decode-edid: using bus $i (autodetected)\n";
+ return $i;
+ }
+ }
+ elsif (-r "/sys/bus/i2c/devices/$i-0050/eeprom")
+ {
+ if (edid_valid_sysfs($i, '50'))
+ {
+ print STDERR
+ "decode-edid: using bus $i (autodetected)\n";
+ return $i;
+ }
+ }
+ }
+
+ return; # default
+}
+
+sub edid_decode
+{
+ my ($bus, $addr, $mode) = @_;
+
+ # Make sure it is an EDID EEPROM.
+
+ unless (($mode == PROCFS && edid_valid_procfs ($bus, $addr))
+ || ($mode == SYSFS && edid_valid_sysfs ($bus, $addr)))
+ {
+ print STDERR
+ "decode-edid: not an EDID EEPROM at $bus-$addr\n";
+ return;
+ }
+
+ $SIG{__WARN__} = sub { };
+ open PIPE, "| parse-edid"
+ or die "Can't open parse-edid. Please install read-edid.\n";
+ delete $SIG{__WARN__};
+ binmode PIPE;
+
+ if ($mode == PROCFS)
+ {
+ for (my $i=0; $i<=0x70; $i+=0x10)
+ {
+ my $file = sprintf '%02x', $i;
+ my $output = '';
+ open EEDATA, "/proc/sys/dev/sensors/eeprom-i2c-$bus-$addr/$file"
+ or die "Can't read /proc/sys/dev/sensors/eeprom-i2c-$bus-$addr/$file";
+ while(<EEDATA>)
+ {
+ foreach my $item (split)
+ {
+ $output .= pack "C", $item;
+ }
+ }
+ close EEDATA;
+ print PIPE $output;
+ }
+ }
+ elsif ($mode == SYSFS)
+ {
+ print PIPE rawread("/sys/bus/i2c/devices/$bus-00$address/eeprom", 128, 0);
+ }
+
+ close PIPE;
+}
+
+# Get the address. Default to 0x50 if not given.
+$address = $ARGV[1] || 0x50;
+# Convert to decimal, whatever the value.
+$address = oct $address if $address =~ m/^0/;
+# Convert to an hexadecimal string.
+$address = sprintf '%02x', $address;
+
+# Get the bus. Try to autodetect if not given.
+$bus = $ARGV[0] if defined $ARGV[0];
+$bus = bus_detect(8) unless defined $bus;
+
+if(defined $bus)
+{
+ print STDERR
+ "decode-edid: decode-edid version 1.1\n";
+ if (-r "/proc/sys/dev/sensors/eeprom-i2c-$bus-$address")
+ {
+ edid_decode ($bus, $address, PROCFS);
+ exit 0;
+ }
+ elsif (-r "/sys/bus/i2c/devices/$bus-00$address")
+ {
+ edid_decode ($bus, $address, SYSFS);
+ exit 0;
+ }
+}
+
+print STDERR
+ "EDID EEPROM not found. Please make sure that the eeprom module is loaded.\n";
+print STDERR
+ "Maybe your EDID EEPROM is on another bus. Try \"decode-edid ".($bus+1)."\".\n"
+ if defined $bus;
diff --git a/eeprom/decode-vaio b/eeprom/decode-vaio
new file mode 100755
index 0000000..2631170
--- /dev/null
+++ b/eeprom/decode-vaio
@@ -0,0 +1,237 @@
+#!/usr/bin/perl -w
+#
+# Copyright (C) 2002-2008 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., 51 Franklin Street, Fifth Floor, Boston,
+# MA 02110-1301 USA.
+#
+# EEPROM data decoding for Sony Vaio laptops.
+#
+# The eeprom driver must be loaded. For kernels older than 2.6.0, the
+# eeprom driver can be found in the lm-sensors package.
+#
+# Please note that this is a guess-only work. Sony support refused to help
+# me, so if someone can provide information, please contact me.
+# My knowledge is summarized on this page:
+# http://khali.linux-fr.org/vaio/eeprom.html
+#
+# It seems that if present, the EEPROM is always at 0x57.
+#
+# Models tested so far:
+# PCG-F403 : No EEPROM
+# PCG-F707 : No EEPROM
+# PCG-GR114EK : OK
+# PCG-GR114SK : OK
+# PCG-GR214EP : OK
+# PCG-GRT955MP : OK
+# PCG-GRX316G : OK
+# PCG-GRX570 : OK
+# PCG-GRX600K : OK
+# PCG-U1 : OK
+# PCG-Z600LEK : No EEPROM
+# PCG-Z600NE : No EEPROM
+# VGN-S260 : OK
+# VGN-S4M/S : OK
+# VGN-TZ11MN/N : OK
+#
+# Thanks to Werner Heuser, Carsten Blume, Christian Gennerat, Joe Wreschnig,
+# Xavier Roche, Sebastien Lefevre, Lars Heer, Steve Dobson, Kent Hunt,
+# Timo Hoenig and others for their precious help.
+
+
+use strict;
+use Fcntl qw(:DEFAULT :seek);
+use vars qw($sysfs $found);
+
+use constant VERSION => "1.6";
+use constant ONLYROOT => "Readable only by root";
+
+sub print_item
+{
+ my ($label,$value) = @_;
+
+ printf("\%16s : \%s\n",$label,$value);
+}
+
+# Abstract reads so that other functions don't have to care wether
+# we need to use procfs or sysfs
+sub read_eeprom_bytes
+{
+ my ($bus, $addr, $offset, $length) = @_;
+ my $filename;
+
+ if ($sysfs)
+ {
+ $filename = "/sys/bus/i2c/devices/$bus-00$addr/eeprom";
+ sysopen(FH, $filename, O_RDONLY)
+ or die "Can't open $filename";
+ sysseek(FH, $offset, SEEK_SET)
+ or die "Can't seek in $filename";
+
+ my ($r, $bytes);
+ $bytes = '';
+ $offset = 0;
+ while($length)
+ {
+ $r = sysread(FH, $bytes, $length, $offset);
+ die "Can't read $filename"
+ unless defined($r);
+ die "Unexpected EOF in $filename"
+ unless $r;
+ $offset += $r;
+ $length -= $r;
+ }
+ close(FH);
+
+ return $bytes;
+ }
+ else
+ {
+ my $base = $offset & 0xf0;
+ $offset -= $base;
+ my $values = '';
+ my $remains = $length + $offset;
+
+ # Get all lines in a single string
+ while ($remains > 0)
+ {
+ $filename = "/proc/sys/dev/sensors/eeprom-i2c-$bus-$addr/"
+ . sprintf('%02x', $base);
+ open(FH, $filename)
+ or die "Can't open $filename";
+ $values .= <FH>;
+ close(FH);
+ $remains -= 16;
+ $base += 16;
+ }
+
+ # Store the useful part in an array
+ my @bytes = split(/[ \n]/, $values);
+ @bytes = @bytes[$offset..$offset+$length-1];
+
+ # Back to a binary string
+ return pack('C*', @bytes);
+ }
+}
+
+sub decode_string
+{
+ my ($bus, $addr, $offset, $length) = @_;
+
+ my $string = read_eeprom_bytes($bus, $addr, $offset, $length);
+ $string =~ s/\x00.*$//;
+
+ return($string);
+}
+
+sub decode_hexa
+{
+ my ($bus, $addr, $offset, $length) = @_;
+
+ my @bytes = unpack('C*', read_eeprom_bytes($bus, $addr, $offset, $length));
+ my $string='';
+
+ for(my $i=0;$i<$length;$i++)
+ {
+ $string.=sprintf('%02X', shift(@bytes));
+ }
+
+ return($string);
+}
+
+sub decode_uuid
+{
+ my ($bus,$addr,$base) = @_;
+
+ my @bytes = unpack('C16', read_eeprom_bytes($bus, $addr, $base, 16));
+ my $string='';
+
+ for(my $i=0;$i<16;$i++)
+ {
+ $string.=sprintf('%02x',shift(@bytes));
+ if(($i==3)||($i==5)||($i==7)||($i==9))
+ {
+ $string.='-';
+ }
+ }
+
+ if ($string eq '00000000-0000-0000-0000-000000000000')
+ {
+ return(ONLYROOT);
+ }
+ else
+ {
+ return($string);
+ }
+}
+
+sub vaio_decode
+{
+ my ($bus,$addr) = @_;
+
+ my $name = decode_string($bus, $addr, 128, 32);
+ # Simple heuristic to skip false positives
+ return 0 unless $name =~ m/^[A-Z-]{4}/;
+
+ print_item('Machine Name', $name);
+ my $serial = decode_string($bus, $addr, 192, 32);
+ print_item('Serial Number', $serial ? $serial : ONLYROOT);
+ print_item('UUID', decode_uuid($bus, $addr, 16));
+ my $revision = decode_string($bus, $addr, 160, 10);
+ print_item(length($revision) > 2 ? 'Service Tag' : 'Revision',
+ $revision);
+ print_item('Asset Tag', decode_string($bus, $addr, 170, 4).
+ decode_hexa($bus, $addr, 174, 12));
+ print_item('OEM Data', decode_string($bus, $addr, 32, 16));
+ print_item('Timestamp', decode_string($bus, $addr, 224, 18));
+ return 1;
+}
+
+BEGIN
+{
+ print("# Sony Vaio EEPROM Decoder version ".VERSION." by Jean Delvare\n\n");
+}
+
+END
+{
+ print("\n");
+}
+
+for (my $i = 0, $found=0; $i <= 4 && !$found; $i++)
+{
+ if (-r "/sys/bus/i2c/devices/$i-0057/eeprom")
+ {
+ $sysfs = 1;
+ $found += vaio_decode($i, '57');
+ }
+ elsif (-r "/proc/sys/dev/sensors/eeprom-i2c-$i-57")
+ {
+ if (-r "/proc/sys/dev/sensors/eeprom-i2c-$i-57/data0-15")
+ {
+ print("Deprecated old interface found. Please upgrade to lm_sensors 2.6.3 or greater.");
+ exit;
+ }
+ else
+ {
+ $sysfs = 0;
+ $found += vaio_decode($i, '57');
+ }
+ }
+}
+
+if (!$found)
+{
+ print("Vaio EEPROM not found. Please make sure that the eeprom module is loaded.\n");
+}
diff --git a/eeprom/decode-xeon b/eeprom/decode-xeon
new file mode 100755
index 0000000..8a400b9
--- /dev/null
+++ b/eeprom/decode-xeon
@@ -0,0 +1,197 @@
+#!/usr/bin/perl
+#
+# Copyright 1998, 1999 Philip Edelbrock <phil@netroedge.com>
+# and Mark Studebaker <mdsxyz123@yahoo.com>
+#
+# Version 0.1
+#
+#
+# ID ROM data decoding for Xeon processors.
+# Each Xeon processor contains two memories:
+# - A scratch EEPROM at an even location 0x50, 52, 54, or 56;
+# - An ID ROM at an odd location 0x51, 53, 55, or 57.
+# This program decodes the ID ROM's only.
+# The scratch EEPROMs have no prescribed format.
+# If the output of this program makes no sense for a particular device,
+# it is probably decoding a DIMM Serial Presence Detect (SPD) EEPROM.
+# See decode-dimms to decode those devices.
+#
+#
+# The eeprom driver must be loaded. For kernels older than 2.6.0, the
+# eeprom driver can be found in the lm-sensors package.
+#
+# To do:
+# Calculate and check checksums for each section
+# Decode flags in byte 0x7B (cartridge feature flags)
+#
+# References:
+# "Pentium II Xeon Processor at 400 and 450 MHz" Data Sheet
+# Intel
+#
+#
+#
+
+print "Xeon Processor Information ROM Decoder\n";
+print "Written by Philip Edelbrock and Mark Studebaker. Copyright 1998, 1999.\n";
+print "Version 2.6.3\n\n";
+
+$dimm_count=0;
+$_=`ls /proc/sys/dev/sensors/`;
+@dimm_list=split();
+
+for $i ( 0 .. $#dimm_list ) {
+ $_=$dimm_list[$i];
+ if ((/^eeprom-/) && (/-51$/ || /-53$/ || /-55$/ || /-57$/)) {
+ $dimm_count=$dimm_count + 1;
+
+ print "\nDecoding Xeon ROM: /proc/sys/dev/sensors/$dimm_list[$i]\n";
+ if (/^[^-]+-[^-]+-[^-]+-([^-]+)$/) {
+ $dimm_num=($1 - 49) / 2;
+ print "Guessing Xeon is number $dimm_num\n";
+ }
+# Decode first 16 bytes
+ print "\t\t----=== Xeon ROM Header Data ===----\n";
+
+ $_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/00`;
+ @bytes=split(" ");
+
+ printf("\tData Format Revision: \t\t\t\t0x%.4X\n", $bytes[0]);
+
+ print "\tTotal number of bytes in EEPROM:\t\t";
+ print ($bytes[1] << 4) + $bytes[2];
+ print "\n";
+
+ printf("\tProcessor Data Address:\t\t\t\t0x%.2X\n", $bytes[3]);
+ printf("\tProcessor Core Data Address:\t\t\t0x%.2X\n", $bytes[4]);
+ printf("\tL2 Cache Data Address:\t\t\t\t0x%.2X\n", $bytes[5]);
+ printf("\tSEC Cartridge Data Address:\t\t\t0x%.2X\n", $bytes[6]);
+ printf("\tPart Number Data Address:\t\t\t0x%.2X\n", $bytes[7]);
+ printf("\tThermal Reference Data Address:\t\t\t0x%.2X\n", $bytes[8]);
+ printf("\tFeature Data Address:\t\t\t\t0x%.2X\n", $bytes[9]);
+ printf("\tOther Data Address:\t\t\t\t0x%.2X\n", $bytes[10]);
+
+ print "\t\t----=== Xeon ROM Processor Data ===----\n";
+
+# Decode next 16 bytes
+ $_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/10`;
+ @bbytes=split(" ");
+ print "\tS-spec/QDF Number:\t\t\t\t\"";
+ print pack("cccccc",$bytes[14],$bytes[15],$bbytes[0],
+ $bbytes[1],$bbytes[2],$bbytes[3]);
+ print "\"\n";
+ $tmp = $bbytes[4] & 0xC0 >> 6;
+ printf("\tSample / Production:\t\t\t\t0x%.2X", $tmp);
+ if($tmp) {
+ print " (Production)\n";
+ } else {
+ print " (Sample)\n";
+ }
+
+ print "\t\t----=== Xeon ROM Core Data ===----\n";
+
+ printf("\tProcessor Core Type:\t\t\t\t0x%.2X\n",
+ ($bbytes[6] & 0xC0) >> 6);
+ printf("\tProcessor Core Family:\t\t\t\t0x%.2X\n",
+ ($bbytes[6] & 0x3C) >> 2);
+ printf("\tProcessor Core Model:\t\t\t\t0x%.2X\n",
+ (($bbytes[6] & 0x03) << 2) + (($bbytes[7] & 0xC0) >> 6));
+ printf("\tProcessor Core Stepping:\t\t\t0x%.2X\n",
+ ($bbytes[7] & 0x30) >> 4);
+ print "\tMaximum Core Frequency (Mhz):\t\t\t";
+ print ($bbytes[13] << 4) + $bbytes[14];
+ print "\n";
+
+# Decode next 16 bytes (32-47)
+ $_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/20`;
+ @bytes=split(" ");
+ print "\tCore Voltage ID (mV):\t\t\t\t";
+ print ($bbytes[15] << 4) + $bytes[0];
+ print "\n";
+ print "\tCore Voltage Tolerance, High (mV):\t\t";
+ print $bytes[1];
+ print "\n";
+ print "\tCore Voltage Tolerance, Low (mV):\t\t";
+ print $bytes[2];
+ print "\n";
+
+ print "\t\t----=== Xeon ROM L2 Cache Data ===----\n";
+
+ print "\tL2 Cache Size (KB):\t\t\t\t";
+ print ($bytes[9] << 4) + $bytes[10];
+ print "\n";
+ printf("\tNumber of SRAM Components:\t\t\t%d\n",
+ ($bytes[11] & 0xF0) >> 4);
+ print "\tL2 Cache Voltage ID (mV):\t\t\t";
+ print ($bytes[12] << 4) + $bytes[13];
+ print "\n";
+ print "\tL2 Cache Voltage Tolerance, High (mV):\t\t";
+ print $bytes[14];
+ print "\n";
+ print "\tL2 Cache Voltage Tolerance, Low (mV):\t\t";
+ print $bytes[15];
+ print "\n";
+
+# Decode next 16 bytes (48-63)
+ $_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/30`;
+ @bytes=split(" ");
+
+ printf("\tCache/Tag Stepping ID:\t\t\t\t0x%.2X\n",
+ ($bytes[0] & 0xF0) >> 4);
+
+ print "\t\t----=== Xeon ROM Cartridge Data ===----\n";
+
+ print "\tCartridge Revision:\t\t\t\t\"";
+ print pack("cccc",$bytes[2],$bytes[3],$bytes[4],$bytes[5]);
+ print "\"\n";
+ printf("\tSubstrate Rev. Software ID:\t\t\t0x%.2X\n",
+ ($bbytes[6] & 0xC0) >> 6);
+
+ print "\t\t----=== Xeon ROM Part Number Data ===----\n";
+
+ print "\tProcessor Part Number:\t\t\t\t\"";
+ print pack("ccccccc",$bytes[8],$bytes[9],$bytes[10],
+ $bytes[11],$bytes[12],$bytes[13],$bytes[14]);
+ print "\"\n";
+ $byte15=$byte[15];
+
+# Decode next 16 bytes (64-79)
+ $_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/40`;
+ @bytes=split(" ");
+
+ print "\tProcessor BOM ID:\t\t\t\t\"";
+ print pack("cccccccccccccc",$byte15,$bytes[0],$bytes[1],
+ $bytes[2],$bytes[3],$bytes[4],$bytes[5],$bytes[6],
+ $bytes[7],$bytes[8],$bytes[9],$bytes[10],$bytes[11],
+ $bytes[12]);
+ print "\"\n";
+
+# Decode next 16 bytes (80-95)
+ $_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/50`;
+ @bbytes=split(" ");
+ printf("\tProcessor Electronic Signature: \t\t0x%.2X%.2X%.2X%.2X%.2X%.2X%.2X%.2X\n",
+ $bytes[13],$bytes[14],$bytes[15],$bbytes[0],
+ $bbytes[1],$bbytes[2],$bbytes[3],$bbytes[4]);
+
+# Decode next 16 bytes (96-111)
+# Not used...
+
+# Decode next 16 bytes (112-127)
+ $_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/70`;
+ @bytes=split(" ");
+
+ print "\t\t----=== Xeon Thermal Reference Data ===----\n";
+
+ printf("\tThermal Reference Byte: \t\t\t0x%.2X\n", $bytes[0]);
+
+ print "\t\t----=== Xeon ROM Feature Data ===----\n";
+
+ printf("\tProcessor Core Feature Flags: \t\t\t0x%.2X%.2X%.2X%.2X\n",
+ $bytes[4],$bytes[5],$bytes[6],$bytes[7]);
+ printf("\tCartridge Feature Flags: \t\t\t0x%.2X%.2X%.2X%.2X\n",
+ $bytes[8],$bytes[9],$bytes[10],$bytes[11]);
+ printf("\tNumber of Devices in TAP Chain:\t\t\t%d\n",
+ ($bytes[12] & 0xF0) >> 4);
+
+ }
+}
+print "\n\nNumber of Xeon ROMs detected and decoded: $dimm_count\n";