| 1 | #!/usr/bin/perl -w |
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| 2 | # |
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| 3 | # Copyright 1998, 1999 Philip Edelbrock <phil@netroedge.com> |
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| 4 | # modified by Christian Zuckschwerdt <zany@triq.net> |
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| 5 | # |
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| 6 | # This program is free software; you can redistribute it and/or modify |
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| 7 | # it under the terms of the GNU General Public License as published by |
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| 8 | # the Free Software Foundation; either version 2 of the License, or |
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| 9 | # (at your option) any later version. |
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| 10 | # |
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| 11 | # This program is distributed in the hope that it will be useful, |
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| 12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 14 | # GNU General Public License for more details. |
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| 15 | # |
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| 16 | # You should have received a copy of the GNU General Public License |
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| 17 | # along with this program; if not, write to the Free Software |
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| 18 | # Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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| 19 | # |
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| 20 | # Version 0.4 1999 Philip Edelbrock <phil@netroedge.com> |
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| 21 | # Version 0.5 2000-03-30 Christian Zuckschwerdt <zany@triq.net> |
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| 22 | # html output (selectable by commandline switches) |
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| 23 | # Version 0.6 2000-09-16 Christian Zuckschwerdt <zany@triq.net> |
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| 24 | # updated according to SPD Spec Rev 1.2B |
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| 25 | # see http://developer.intel.com/technology/memory/pc133sdram/spec/Spdsd12b.htm |
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| 26 | # Version 0.7 2002-11-08 Jean Delvare <khali@linux-fr.org> |
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| 27 | # pass -w and use strict |
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| 28 | # valid HTML 3.2 output (--format mode) |
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| 29 | # miscellaneous formatting enhancements and bug fixes |
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| 30 | # clearer HTML output (original patch by Nick Kurshev <nickols_k@mail.ru>) |
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| 31 | # stop decoding on checksum error by default (--checksum option forces) |
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| 32 | # |
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| 33 | # |
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| 34 | # EEPROM data decoding for SDRAM DIMM modules. |
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| 35 | # |
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| 36 | # Two assumptions: lm_sensors-2.x installed, |
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| 37 | # and Perl is at /usr/bin/perl |
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| 38 | # |
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| 39 | # use the following command line switches |
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| 40 | # -f, --format print nice html output |
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| 41 | # -b, --bodyonly don't printhtml header |
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| 42 | # (useful for postprocessing the output) |
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| 43 | # -h, --help display this usage summary |
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| 44 | # |
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| 45 | # References: |
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| 46 | # PC SDRAM Serial Presence |
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| 47 | # Detect (SPD) Specification, Intel, |
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| 48 | # 1997,1999, Rev 1.2B |
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| 49 | # |
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| 50 | # Jedec Standards 4.1.x & 4.5.x |
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| 51 | # http://www.jedec.org |
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| 52 | # |
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| 53 | |
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| 54 | use strict; |
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| 55 | use vars qw($opt_html $opt_body $opt_bodyonly $opt_igncheck); |
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| 56 | |
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| 57 | sub printl ($$) # print a line w/ label and value |
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| 58 | { |
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| 59 | my ($label, $value) = @_; |
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| 60 | if ($opt_html) { |
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| 61 | $label =~ s/</\</sg; |
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| 62 | $label =~ s/>/\>/sg; |
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| 63 | $label =~ s/\n/<br>\n/sg; |
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| 64 | $value =~ s/</\</sg; |
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| 65 | $value =~ s/>/\>/sg; |
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| 66 | $value =~ s/\n/<br>\n/sg; |
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| 67 | print "<tr><td valign=top>$label</td><td>$value</td></tr>\n"; |
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| 68 | } else { |
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| 69 | $value =~ s%\n%\n\t\t%sg; |
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| 70 | print "$label\t$value\n"; |
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| 71 | } |
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| 72 | } |
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| 73 | |
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| 74 | sub printl2 ($$) # print a line w/ label and value (outside a table) |
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| 75 | { |
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| 76 | my ($label, $value) = @_; |
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| 77 | if ($opt_html) { |
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| 78 | $label =~ s/</\</sg; |
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| 79 | $label =~ s/>/\>/sg; |
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| 80 | $label =~ s/\n/<br>\n/sg; |
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| 81 | $value =~ s/</\</sg; |
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| 82 | $value =~ s/>/\>/sg; |
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| 83 | $value =~ s/\n/<br>\n/sg; |
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| 84 | print "$label: $value\n"; |
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| 85 | } else { |
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| 86 | $value =~ s%\n%\n\t\t%sg; |
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| 87 | print "$label\t$value\n"; |
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| 88 | } |
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| 89 | } |
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| 90 | |
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| 91 | sub prints ($) # print seperator w/ given text |
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| 92 | { |
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| 93 | my ($label) = @_; |
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| 94 | if ($opt_html) { |
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| 95 | $label =~ s/</\</sg; |
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| 96 | $label =~ s/>/\>/sg; |
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| 97 | $label =~ s/\n/<br>\n/sg; |
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| 98 | print "<tr><td align=center colspan=2><b>$label</b></td></tr>\n"; |
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| 99 | } else { |
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| 100 | print "\n---=== $label ===---\n"; |
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| 101 | } |
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| 102 | } |
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| 103 | |
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| 104 | sub printh ($) # print header w/ given text |
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| 105 | { |
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| 106 | my ($label) = @_; |
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| 107 | if ($opt_html) { |
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| 108 | $label =~ s/</\</sg; |
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| 109 | $label =~ s/>/\>/sg; |
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| 110 | $label =~ s/\n/<br>\n/sg; |
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| 111 | print "<h1>$label</h1>\n"; |
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| 112 | } else { |
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| 113 | print "\n$label\n"; |
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| 114 | } |
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| 115 | } |
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| 116 | |
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| 117 | for (@ARGV) { |
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| 118 | if (/-h/) { |
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| 119 | print "Usage: $0 [-f|-b|-h]\n\n", |
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| 120 | " -f, --format print nice html output\n", |
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| 121 | " -b, --bodyonly don't printhtml header\n", |
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| 122 | " (useful for postprocessing the output)\n", |
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| 123 | " -c, --checksum decode completely even if checksum fails\n", |
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| 124 | " -h, --help display this usage summary\n"; |
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| 125 | exit; |
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| 126 | } |
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| 127 | $opt_html = 1 if (/-f/); |
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| 128 | $opt_bodyonly = 1 if (/-b/); |
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| 129 | $opt_igncheck = 1 if (/-c/); |
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| 130 | } |
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| 131 | $opt_body = $opt_html && ! $opt_bodyonly; |
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| 132 | |
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| 133 | if ($opt_body) |
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| 134 | { |
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| 135 | print "<!DOCTYPE html PUBLIC \"-//W3C//DTD HTML 3.2 Final//EN\">\n", |
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| 136 | "<html><head>\n", |
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| 137 | "\t<meta HTTP-EQUIV=\"Content-Type\" CONTENT=\"text/html; charset=iso-8859-1\">\n", |
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| 138 | "\t<title>PC DIMM Serial Presence Detect Tester/Decoder Output</title>\n", |
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| 139 | "</head><body>\n"; |
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| 140 | } |
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| 141 | |
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| 142 | printh ' |
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| 143 | PC DIMM Serial Presence Detect Tester/Decoder |
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| 144 | By Philip Edelbrock, Christian Zuckschwerdt and others |
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| 145 | Version 2.6.6 |
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| 146 | '; |
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| 147 | |
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| 148 | |
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| 149 | my $dimm_count=0; |
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| 150 | $_=`ls /proc/sys/dev/sensors/`; |
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| 151 | my @dimm_list=split(); |
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| 152 | |
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| 153 | for my $i ( 0 .. $#dimm_list ) { |
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| 154 | $_=$dimm_list[$i]; |
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| 155 | if (/^eeprom-/) { |
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| 156 | my $dimm_checksum=0; |
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| 157 | $dimm_count += 1; |
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| 158 | |
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| 159 | print "<b><u><br><br>" if $opt_html; |
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| 160 | printl2 "Decoding EEPROM" , " /proc/sys/dev/sensors/$dimm_list[$i]"; |
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| 161 | print "</u></b>" if $opt_html; |
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| 162 | print "<table border=1>\n" if $opt_html; |
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| 163 | if (/^[^-]+-[^-]+-[^-]+-([^-]+)$/) { |
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| 164 | my $dimm_num=$1 - 49; |
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| 165 | printl "Guessing DIMM is in", "bank $dimm_num"; |
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| 166 | } |
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| 167 | # Decode first 16 bytes |
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| 168 | prints "The Following is Required Data and is Applicable to all DIMM Types"; |
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| 169 | |
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| 170 | $_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/00`; |
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| 171 | my @bytes=split(" "); |
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| 172 | for my $j ( 0 .. 15 ) { $dimm_checksum = $dimm_checksum + $bytes[$j]; } |
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| 173 | |
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| 174 | printl "# of bytes written to SDRAM EEPROM",$bytes[0]; |
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| 175 | |
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| 176 | my $l = "Total number of bytes in EEPROM"; |
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| 177 | if ($bytes[1] <= 13) { |
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| 178 | printl $l, 2**$bytes[1]; |
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| 179 | } elsif ($bytes[1] == 0) { |
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| 180 | printl $l, "RFU"; |
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| 181 | } else { printl $l, "ERROR!"; } |
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| 182 | |
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| 183 | $l = "Fundemental Memory type"; |
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| 184 | if ($bytes[2] == 2) { printl $l, "EDO"; } |
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| 185 | elsif ($bytes[2] == 4) { printl $l, "SDRAM"; } |
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| 186 | else { printl $l, "???"; } |
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| 187 | |
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| 188 | $l = "Number of Row Address Bits (SDRAM only)"; |
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| 189 | if ($bytes[3] == 0) { printl $l, "Undefined!" } |
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| 190 | elsif ($bytes[3] == 1) { printl $l, "1/16" } |
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| 191 | elsif ($bytes[3] == 2) { printl $l, "2/17" } |
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| 192 | elsif ($bytes[3] == 3) { printl $l, "3/18" } |
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| 193 | else { printl $l, $bytes[3]; } |
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| 194 | |
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| 195 | $l = "Number of Col Address Bits (SDRAM only)"; |
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| 196 | if ($bytes[4] == 0) { printl $l, "Undefined!" } |
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| 197 | elsif ($bytes[4] == 1) { printl $l, "1/16" } |
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| 198 | elsif ($bytes[4] == 2) { printl $l, "2/17" } |
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| 199 | elsif ($bytes[4] == 3) { printl $l, "3/18" } |
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| 200 | else { printl $l, $bytes[4]; } |
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| 201 | |
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| 202 | $l = "Number of Module Rows"; |
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| 203 | if ($bytes[5] == 0 ) { printl $l, "Undefined!"; } |
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| 204 | else { printl $l, $bytes[5]; } |
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| 205 | |
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| 206 | $l = "Data Width (SDRAM only)"; |
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| 207 | if ($bytes[7] > 1) { printl $l, "Undefined!" } else { |
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| 208 | my $temp=($bytes[7]*256) + $bytes[6]; |
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| 209 | printl $l, $temp; } |
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| 210 | |
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| 211 | $l = "Module Interface Signal Levels"; |
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| 212 | if ($bytes[8] == 0) { printl $l, "5.0 Volt/TTL";} |
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| 213 | elsif ($bytes[8] == 1) { printl $l, "LVTTL";} |
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| 214 | elsif ($bytes[8] == 2) { printl $l, "HSTL 1.5";} |
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| 215 | elsif ($bytes[8] == 3) { printl $l, "SSTL 3.3";} |
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| 216 | elsif ($bytes[8] == 4) { printl $l, "SSTL 2.5";} |
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| 217 | elsif ($bytes[8] == 255) { printl $l, "New Table";} |
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| 218 | else { printl $l, "Undefined!";} |
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| 219 | |
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| 220 | $l = "Cycle Time (SDRAM) highest CAS latency"; |
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| 221 | my $temp=($bytes[9] >> 4) + ($bytes[9] & 0xf) * 0.1; |
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| 222 | printl $l, "${temp}ns"; |
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| 223 | |
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| 224 | $l = "Access Time (SDRAM)"; |
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| 225 | $temp=($bytes[10] >> 4) + ($bytes[10] & 0xf) * 0.1; |
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| 226 | printl $l, "${temp}ns"; |
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| 227 | |
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| 228 | $l = "Module Configuration Type"; |
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| 229 | if ($bytes[11] == 0) { printl $l, "No Parity"; } |
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| 230 | elsif ($bytes[11] == 1) { printl $l, "Parity"; } |
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| 231 | elsif ($bytes[11] == 2) { printl $l, "ECC"; } |
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| 232 | else { printl $l, "Undefined!"; } |
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| 233 | |
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| 234 | $l = "Refresh Type"; |
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| 235 | if ($bytes[12] > 126) { printl $l, "Self Refreshing"; } |
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| 236 | else { printl $l, "Not Self Refreshing"; } |
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| 237 | |
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| 238 | $l = "Refresh Rate"; |
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| 239 | $temp=$bytes[12] & 0x7f; |
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| 240 | if ($temp == 0) { printl $l, "Normal (15.625uS)"; } |
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| 241 | elsif ($temp == 1) { printl $l, "Reduced (3.9uS)"; } |
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| 242 | elsif ($temp == 2) { printl $l, "Reduced (7.8uS)"; } |
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| 243 | elsif ($temp == 3) { printl $l, "Extended (31.3uS)"; } |
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| 244 | elsif ($temp == 4) { printl $l, "Extended (62.5uS)"; } |
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| 245 | elsif ($temp == 5) { printl $l, "Extended (125uS)"; } |
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| 246 | else { printl $l, "Undefined!";} |
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| 247 | |
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| 248 | $l = "Primary SDRAM Component Bank Config"; |
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| 249 | if ($bytes[13]>126) { printl $l, "Bank2 = 2 x Bank1";} |
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| 250 | else { printl $l, "No Bank2 OR Bank2 = Bank1 width";} |
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| 251 | |
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| 252 | $l = "Primary SDRAM Component Widths"; |
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| 253 | $temp=$bytes[13] & 0x7f; |
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| 254 | if ($temp == 0) { printl $l, "Undefined!\n"; } |
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| 255 | else { printl $l, $temp; } |
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| 256 | |
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| 257 | $l = "Error Checking SDRAM Component Bank Config"; |
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| 258 | if ($bytes[14]>126) { printl $l, "Bank2 = 2 x Bank1";} |
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| 259 | else { printl $l, "No Bank2 OR Bank2 = Bank1 width";} |
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| 260 | |
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| 261 | $l = "Error Checking SDRAM Component Widths"; |
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| 262 | $temp=$bytes[14] & 0x7f; |
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| 263 | if ($temp == 0) { printl $l, "Undefined!"; } |
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| 264 | else { printl $l, $temp; } |
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| 265 | |
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| 266 | $l = "Min Clock Delay for Back to Back Random Access"; |
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| 267 | if ($bytes[15] == 0) { printl $l, "Undefined!"; } |
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| 268 | else { printl $l, $bytes[15]; } |
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| 269 | |
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| 270 | prints "The Following Apply to SDRAM DIMMs ONLY"; |
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| 271 | |
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| 272 | # Decode next 16 bytes |
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| 273 | $_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/10`; |
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| 274 | @bytes=split(" "); |
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| 275 | for my $j ( 0 .. 15 ) { $dimm_checksum = $dimm_checksum + $bytes[$j]; } |
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| 276 | |
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| 277 | $l = "Burst lengths supported"; |
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| 278 | $temp=""; |
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| 279 | if (($bytes[0] & 1) > 0) { $temp .= "Burst Length = 1\n"; } |
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| 280 | if (($bytes[0] & 2) > 0) { $temp .= "Burst Length = 2\n"; } |
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| 281 | if (($bytes[0] & 4) > 0) { $temp .= "Burst Length = 4\n"; } |
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| 282 | if (($bytes[0] & 8) > 0) { $temp .= "Burst Length = 8\n"; } |
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| 283 | if (($bytes[0] & 16) > 0) { $temp .= "Undefined! (bit 4)\n"; } |
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| 284 | if (($bytes[0] & 32) > 0) { $temp .= "Undefined! (bit 5)\n"; } |
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| 285 | if (($bytes[0] & 64) > 0) { $temp .= "Undefined! (bit 6)\n"; } |
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| 286 | if (($bytes[0] & 128) > 0) { $temp .= "Burst Length = Page\n"; } |
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| 287 | if ($bytes[0] == 0) { $temp .= "(None Supported)\n";} |
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| 288 | printl $l, $temp; |
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| 289 | |
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| 290 | $l = "Number of Device Banks"; |
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| 291 | if ($bytes[1] == 0) { printl $l, "Undefined/Reserved!"; } |
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| 292 | else { printl $l, $bytes[1]; } |
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| 293 | |
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| 294 | $l = "Supported CAS Latencies"; |
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| 295 | $temp=""; |
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| 296 | if (($bytes[2] & 1) > 0) { $temp .= "CAS Latency = 1\n";} |
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| 297 | if (($bytes[2] & 2) > 0) { $temp .= "CAS Latency = 2\n"; } |
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| 298 | if (($bytes[2] & 4) > 0) { $temp .= "CAS Latency = 3\n"; } |
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| 299 | if (($bytes[2] & 8) > 0) { $temp .= "CAS Latency = 4\n"; } |
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| 300 | if (($bytes[2] & 16) > 0) { $temp .= "CAS Latency = 5\n"; } |
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| 301 | if (($bytes[2] & 32) > 0) { $temp .= "CAS Latency = 6\n"; } |
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| 302 | if (($bytes[2] & 64) > 0) { $temp .= "CAS Latency = 7\n"; } |
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| 303 | if (($bytes[2] & 128) > 0) { $temp .= "Undefined (bit 7)\n"; } |
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| 304 | if ($bytes[2] == 0) { $temp .= "(None Supported)\n";} |
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| 305 | printl $l, $temp; |
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| 306 | |
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| 307 | $l = "Supported CS Latencies"; |
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| 308 | $temp=""; |
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| 309 | if (($bytes[3] & 1) > 0) { $temp .= "CS Latency = 0\n";} |
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| 310 | if (($bytes[3] & 2) > 0) { $temp .= "CS Latency = 1\n"; } |
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| 311 | if (($bytes[3] & 4) > 0) { $temp .= "CS Latency = 2\n"; } |
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| 312 | if (($bytes[3] & 8) > 0) { $temp .= "CS Latency = 3\n"; } |
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| 313 | if (($bytes[3] & 16) > 0) { $temp .= "CS Latency = 4\n"; } |
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| 314 | if (($bytes[3] & 32) > 0) { $temp .= "CS Latency = 5\n"; } |
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| 315 | if (($bytes[3] & 64) > 0) { $temp .= "CS Latency = 6\n"; } |
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| 316 | if (($bytes[3] & 128) > 0) { $temp .= "Undefined (bit 7)\n"; } |
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| 317 | if ($bytes[3] == 0) { $temp .= "(None Supported)\n";} |
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| 318 | printl $l, $temp; |
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| 319 | |
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| 320 | $l = "Supported WE Latencies"; |
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| 321 | $temp=""; |
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| 322 | if (($bytes[4] & 1) > 0) { $temp .= "WE Latency = 0\n";} |
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| 323 | if (($bytes[4] & 2) > 0) { $temp .= "WE Latency = 1\n"; } |
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| 324 | if (($bytes[4] & 4) > 0) { $temp .= "WE Latency = 2\n"; } |
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| 325 | if (($bytes[4] & 8) > 0) { $temp .= "WE Latency = 3\n"; } |
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| 326 | if (($bytes[4] & 16) > 0) { $temp .= "WE Latency = 4\n"; } |
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| 327 | if (($bytes[4] & 32) > 0) { $temp .= "WE Latency = 5\n"; } |
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| 328 | if (($bytes[4] & 64) > 0) { $temp .= "WE Latency = 6\n"; } |
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| 329 | if (($bytes[4] & 128) > 0) { $temp .= "Undefined (bit 7)\n"; } |
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| 330 | if ($bytes[4] == 0) { $temp .= "(None Supported)\n";} |
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| 331 | printl $l, $temp; |
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| 332 | |
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| 333 | $l = "SDRAM Module Attributes"; |
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| 334 | $temp=""; |
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| 335 | if (($bytes[5] & 1) > 0) { $temp .= "Buffered Address/Control Inputs\n";} |
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| 336 | if (($bytes[5] & 2) > 0) { $temp .= "Registered Address/Control Inputs\n"; } |
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| 337 | if (($bytes[5] & 4) > 0) { $temp .= "On card PLL (clock)\n"; } |
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| 338 | if (($bytes[5] & 8) > 0) { $temp .= "Buffered DQMB Inputs\n"; } |
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| 339 | if (($bytes[5] & 16) > 0) { $temp .= "Registered DQMB Inputs\n"; } |
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| 340 | if (($bytes[5] & 32) > 0) { $temp .= "Differential Clock Input\n"; } |
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| 341 | if (($bytes[5] & 64) > 0) { $temp .= "Redundant Row Address\n"; } |
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| 342 | if (($bytes[5] & 128) > 0) { $temp .= "Undefined (bit 7)\n"; } |
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| 343 | if ($bytes[5] == 0) { $temp .= "(None Reported)\n";} |
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| 344 | printl $l, $temp; |
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| 345 | |
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| 346 | $l = "SDRAM Device Attributes (General)"; |
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| 347 | $temp=""; |
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| 348 | if (($bytes[6] & 1) > 0) { $temp .= "Supports Early RAS# Recharge\n";} |
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| 349 | if (($bytes[6] & 2) > 0) { $temp .= "Supports Auto-Precharge\n"; } |
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| 350 | if (($bytes[6] & 4) > 0) { $temp .= "Supports Precharge All\n"; } |
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| 351 | if (($bytes[6] & 8) > 0) { $temp .= "Supports Write1/Read Burst\n"; } |
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| 352 | if (($bytes[6] & 16) > 0) { $temp .= "Lower VCC Tolerance:5%\n"; } |
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| 353 | if (($bytes[6] & 16) == 0) { $temp .= "Lower VCC Tolerance:10%\n"; } |
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| 354 | if (($bytes[6] & 32) > 0) { $temp .= "Upper VCC Tolerance:5%\n"; } |
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| 355 | if (($bytes[6] & 32) == 0) { $temp .= "Upper VCC Tolerance:10%\n"; } |
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| 356 | if (($bytes[6] & 64) > 0) { $temp .= "Undefined (bit 6)\n"; } |
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| 357 | if (($bytes[6] & 128) > 0) { $temp .= "Undefined (bit 7)\n"; } |
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| 358 | printl $l, $temp; |
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| 359 | |
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| 360 | $l = "SDRAM Cycle Time (2nd highest CAS)"; |
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| 361 | $temp = $bytes[7] >> 4; |
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| 362 | if ($temp == 0) { printl $l, "Undefined!"; } |
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| 363 | else { |
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| 364 | if ($temp < 4 ) {$temp=$temp + 15;} |
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| 365 | printl $l, $temp + (($bytes[7] & 0xf) * 0.1) . "nS"; |
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| 366 | } |
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| 367 | |
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| 368 | $l = "SDRAM Access from Clock Time (2nd highest CAS)"; |
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| 369 | $temp = $bytes[8] >> 4; |
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| 370 | if ($temp == 0) { printl $l, "Undefined!"; } |
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| 371 | else { |
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| 372 | if ($temp < 4 ) {$temp=$temp + 15;} |
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| 373 | printl $l, $temp + (($bytes[8] & 0xf) * 0.1) . "nS"; |
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| 374 | } |
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| 375 | |
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| 376 | prints "The Following are Optional (may be Bogus)"; |
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| 377 | |
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| 378 | $l = "SDRAM Cycle Time (3rd highest CAS)"; |
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| 379 | $temp = $bytes[9] >> 2; |
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| 380 | if ($temp == 0) { printl $l, "Undefined!"; } |
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| 381 | else { printl $l, $temp + ($bytes[9] & 0x3) * 0.25 . "nS"; } |
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| 382 | |
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| 383 | $l = "SDRAM Access from Clock Time (3rd highest CAS)"; |
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| 384 | $temp = $bytes[10] >> 2; |
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| 385 | if ($temp == 0) { printl $l, "Undefined!"; } |
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| 386 | else { printl $l, $temp + ($bytes[10] & 0x3) * 0.25 . "nS"; } |
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| 387 | |
|---|
| 388 | prints "The Following are Required (for SDRAMs)"; |
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| 389 | |
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| 390 | $l = "Minumum Row Precharge Time"; |
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| 391 | if ($bytes[11] == 0) { printl $l, "Undefined!"; } |
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| 392 | else { printl $l, "$bytes[11]nS"; } |
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| 393 | |
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| 394 | $l = "Row Active to Row Active Min"; |
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| 395 | if ($bytes[12] == 0) { printl $l, "Undefined!"; } |
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| 396 | else { printl $l, "$bytes[12]nS"; } |
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| 397 | |
|---|
| 398 | $l = "RAS to CAS Delay"; |
|---|
| 399 | if ($bytes[13] == 0) { printl $l, "Undefined!"; } |
|---|
| 400 | else { printl $l, "$bytes[13]nS"; } |
|---|
| 401 | |
|---|
| 402 | $l = "Min RAS Pulse Width"; |
|---|
| 403 | if ($bytes[14] == 0) { printl $l, "Undefined!"; } |
|---|
| 404 | else { printl $l, "$bytes[14]nS"; } |
|---|
| 405 | |
|---|
| 406 | |
|---|
| 407 | prints "The Following are Required and Apply to ALL DIMMs"; |
|---|
| 408 | |
|---|
| 409 | $l = "Row Densities"; |
|---|
| 410 | $temp=""; |
|---|
| 411 | if (($bytes[15] & 1) > 0) { $temp .= "4 MByte\n";} |
|---|
| 412 | if (($bytes[15] & 2) > 0) { $temp .= "8 MByte\n"; } |
|---|
| 413 | if (($bytes[15] & 4) > 0) { $temp .= "16 MByte\n"; } |
|---|
| 414 | if (($bytes[15] & 8) > 0) { $temp .= "32 MByte\n"; } |
|---|
| 415 | if (($bytes[15] & 16) > 0) { $temp .= "64 MByte\n"; } |
|---|
| 416 | if (($bytes[15] & 32) > 0) { $temp .= "128 MByte\n"; } |
|---|
| 417 | if (($bytes[15] & 64) > 0) { $temp .= "256 MByte\n"; } |
|---|
| 418 | if (($bytes[15] & 128) > 0) { $temp .= "512 MByte\n"; } |
|---|
| 419 | if ($bytes[15] == 0) { $temp .= "(Undefined! -- None Reported!)\n";} |
|---|
| 420 | printl $l, $temp; |
|---|
| 421 | |
|---|
| 422 | |
|---|
| 423 | # Decode next 16 bytes (32-47) |
|---|
| 424 | $_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/20`; |
|---|
| 425 | @bytes=split(" "); |
|---|
| 426 | for my $j ( 0 .. 15 ) { $dimm_checksum = $dimm_checksum + $bytes[$j]; } |
|---|
| 427 | |
|---|
| 428 | prints "The Following are Proposed and Apply to SDRAM DIMMs"; |
|---|
| 429 | |
|---|
| 430 | $l = "Command and Address Signal Setup Time"; |
|---|
| 431 | $temp = (($bytes[0] & 0x7f) >> 4) + ($bytes[0] & 0xf) * 0.1; |
|---|
| 432 | printl $l, ( ($bytes[0] >> 7) ? -$temp : $temp ) . "nS"; |
|---|
| 433 | |
|---|
| 434 | $l = "Command and Address Signal Hold Time"; |
|---|
| 435 | $temp = (($bytes[1] & 0x7f) >> 4) + ($bytes[1] & 0xf) * 0.1; |
|---|
| 436 | printl $l, ( ($bytes[1] >> 7) ? -$temp : $temp ) . "nS"; |
|---|
| 437 | |
|---|
| 438 | $l = "Data Signal Setup Time"; |
|---|
| 439 | $temp =(($bytes[2] & 0x7f) >> 4) + ($bytes[2] & 0xf) * 0.1; |
|---|
| 440 | printl $l, ( ($bytes[2] >> 7) ? -$temp : $temp ) . "nS"; |
|---|
| 441 | |
|---|
| 442 | $l = "Data Signal Hold Time"; |
|---|
| 443 | $temp = (($bytes[3] & 0x7f) >> 4) + ($bytes[3] & 0xf) * 0.1; |
|---|
| 444 | printl $l, ( ($bytes[3] >> 7) ? -$temp : $temp ) . "nS"; |
|---|
| 445 | |
|---|
| 446 | # That's it for the lower part of an SDRAM EEPROM's memory! |
|---|
| 447 | # Decode next 16 bytes (48-63) |
|---|
| 448 | $_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/30`; |
|---|
| 449 | @bytes=split(" "); |
|---|
| 450 | for my $j ( 0 .. 14 ) { $dimm_checksum = $dimm_checksum + $bytes[$j]; } |
|---|
| 451 | |
|---|
| 452 | printl "SPD Revision code ", sprintf("%x", $bytes[14]); |
|---|
| 453 | $l = "EEPROM Checksum of bytes 0-62"; |
|---|
| 454 | $dimm_checksum &= 0xff; |
|---|
| 455 | printl $l, ($bytes[15]==$dimm_checksum? |
|---|
| 456 | sprintf("OK (0x%.2X)",$bytes[15]): |
|---|
| 457 | sprintf("Bad (found 0x%.2X, calculated 0x%.2X)\n",$bytes[15],$dimm_checksum)); |
|---|
| 458 | |
|---|
| 459 | if($bytes[15]==$dimm_checksum || $opt_igncheck) { |
|---|
| 460 | # Decode next 16 bytes (64-79) |
|---|
| 461 | $_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/40`; |
|---|
| 462 | @bytes=split(" "); |
|---|
| 463 | |
|---|
| 464 | $l = "Manufacturer's JEDEC ID Code"; |
|---|
| 465 | $temp = sprintf("0x%.2X%.2X%.2X%.2X%.2X%.2X%.2X%.2X\n",$bytes[0],$bytes[1],$bytes[2],$bytes[3],$bytes[4],$bytes[5],$bytes[6],$bytes[7]); |
|---|
| 466 | printl $l, $temp; |
|---|
| 467 | $temp = pack("c8", |
|---|
| 468 | $bytes[0],$bytes[1],$bytes[2],$bytes[3],$bytes[4],$bytes[5],$bytes[6],$bytes[7]); |
|---|
| 469 | printl $l, "(\"$temp\")"; |
|---|
| 470 | |
|---|
| 471 | $l = "Manufacturing Location Code"; |
|---|
| 472 | $temp = sprintf("0x%.2X\n",$bytes[8]); |
|---|
| 473 | printl $l, $temp; |
|---|
| 474 | |
|---|
| 475 | $l = "Manufacurer's Part Number"; |
|---|
| 476 | # Decode next 16 bytes (80-95) |
|---|
| 477 | $_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/50`; |
|---|
| 478 | my @bytes2 = split ' '; |
|---|
| 479 | $temp = pack("c18",$bytes[9],$bytes[10],$bytes[11],$bytes[12],$bytes[13],$bytes[14],$bytes[15], |
|---|
| 480 | $bytes2[0],$bytes2[1],$bytes2[2],$bytes2[3],$bytes2[4],$bytes2[5],$bytes2[6],$bytes2[7],$bytes2[8],$bytes2[9],$bytes2[10]); |
|---|
| 481 | printl $l, $temp; |
|---|
| 482 | |
|---|
| 483 | $l = "Revision Code"; |
|---|
| 484 | $temp = sprintf("0x%.2X%.2X\n",$bytes2[11],$bytes2[12]); |
|---|
| 485 | printl $l, $temp; |
|---|
| 486 | |
|---|
| 487 | $l = "Manufacturing Date"; |
|---|
| 488 | $temp = sprintf("0x%.2X%.2X\n",$bytes2[13],$bytes2[14]); |
|---|
| 489 | printl $l, $temp; |
|---|
| 490 | |
|---|
| 491 | $l = "Assembly Serial Number"; |
|---|
| 492 | # Decode next 16 bytes (96-111) |
|---|
| 493 | $_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/60`; |
|---|
| 494 | @bytes=split(" "); |
|---|
| 495 | |
|---|
| 496 | $temp = sprintf("0x%.2X%.2X%.2X%.2X\n",$bytes2[15],$bytes[0],$bytes[1],$bytes[2]); |
|---|
| 497 | # Decode next 16 bytes (112-127) |
|---|
| 498 | $_=`cat /proc/sys/dev/sensors/$dimm_list[$i]/70`; |
|---|
| 499 | @bytes=split(" "); |
|---|
| 500 | |
|---|
| 501 | $l = "Intel Specification for Frequency"; |
|---|
| 502 | if ($bytes[14] == 102) { printl $l, "66MHz\n"; } |
|---|
| 503 | elsif ($bytes[14] == 100) { printl $l, "100MHz\n"; } |
|---|
| 504 | else { printl $l, "Undefined!\n"; } |
|---|
| 505 | |
|---|
| 506 | $l = "Intel Spec Details for 100MHz Support"; |
|---|
| 507 | $temp=""; |
|---|
| 508 | if (($bytes[15] & 1) > 0) { $temp .= "Intel Concurrent AutoPrecharge\n";} |
|---|
| 509 | if (($bytes[15] & 2) > 0) { $temp .= "CAS Latency = 2\n";} |
|---|
| 510 | if (($bytes[15] & 4) > 0) { $temp .= "CAS Latency = 3\n";} |
|---|
| 511 | if (($bytes[15] & 8) > 0) { $temp .= "Junction Temp A (90 degrees C)\n";} |
|---|
| 512 | if (($bytes[15] & 8) == 0) { $temp .= "Junction Temp B (100 degrees C)\n";} |
|---|
| 513 | if (($bytes[15] & 16) > 0) { $temp .= "CLK 3 Connected\n";} |
|---|
| 514 | if (($bytes[15] & 32) > 0) { $temp .= "CLK 2 Connected\n";} |
|---|
| 515 | if (($bytes[15] & 64) > 0) { $temp .= "CLK 1 Connected\n";} |
|---|
| 516 | if (($bytes[15] & 128) > 0) { $temp .= "CLK 0 Connected\n";} |
|---|
| 517 | if ($bytes[15] > 175) { $temp .= "Double Sided DIMM\n"; } |
|---|
| 518 | else { $temp .= "Single Sided DIMM\n";} |
|---|
| 519 | printl $l, $temp; |
|---|
| 520 | } |
|---|
| 521 | |
|---|
| 522 | print "</table>\n" if $opt_html; |
|---|
| 523 | } |
|---|
| 524 | } |
|---|
| 525 | print '<br><br>' if $opt_html; |
|---|
| 526 | printl2 "Number of SDRAM DIMMs detected and decoded", $dimm_count; |
|---|
| 527 | |
|---|
| 528 | print "</body></html>\n" if $opt_body; |
|---|
| 529 | print "\nTry '$0 --format' for html output.\n" unless $opt_html; |
|---|