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@ -1,8 +1,11 @@ |
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#!/usr/bin/perl -w |
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# |
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# EEPROM data decoder for SDRAM DIMM modules |
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# |
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# Copyright 1998, 1999 Philip Edelbrock <phil@netroedge.com> |
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# modified by Christian Zuckschwerdt <zany@triq.net> |
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# modified by Burkart Lingner <burkart@bollchen.de> |
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# Copyright (C) 2005-2008 Jean Delvare <khali@linux-fr.org> |
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# |
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# This program is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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@ -18,62 +21,6 @@ |
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# along with this program; if not, write to the Free Software |
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# Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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# |
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# Version 0.4 1999 Philip Edelbrock <phil@netroedge.com> |
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# Version 0.5 2000-03-30 Christian Zuckschwerdt <zany@triq.net> |
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# html output (selectable by commandline switches) |
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# Version 0.6 2000-09-16 Christian Zuckschwerdt <zany@triq.net> |
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# updated according to SPD Spec Rev 1.2B |
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# see http://developer.intel.com/technology/memory/pc133sdram/spec/Spdsd12b.htm |
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# Version 0.7 2002-11-08 Jean Delvare <khali@linux-fr.org> |
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# pass -w and use strict |
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# valid HTML 3.2 output (--format mode) |
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# miscellaneous formatting enhancements and bug fixes |
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# clearer HTML output (original patch by Nick Kurshev <nickols_k@mail.ru>) |
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# stop decoding on checksum error by default (--checksum option forces) |
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# Version 0.8 2005-06-20 Burkart Lingner <burkart@bollchen.de> |
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# adapted to Kernel 2.6's /sys filesystem |
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# Version 0.9 2005-07-15 Jean Delvare <khali@linux-fr.org> |
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# fix perl warning |
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# fix typo |
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# refactor some code |
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# Version 1.0 2005-09-18 Jean Delvare <khali@linux-fr.org> |
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# add large lookup tables for manufacturer names, based on data |
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# provided by Rudolf Marek, taken from: |
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# http://www.jedec.org/download/search/JEP106r.pdf |
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# Version 1.1 2006-01-22 Jean Delvare <khali@linux-fr.org> |
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# improve the text output, making it hopefully clearer |
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# read eeprom by 64-byte blocks, this allows some code cleanups |
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# use sysopen/sysread instead of open/read for better performance |
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# verify checksum before decoding anything |
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# Version 1.2 2006-05-15 Jean Delvare <khali@linux-fr.org> |
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# implement per-memory-type decoding |
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# don't decode revision code, manufacturing date and assembly serial |
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# number where not set |
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# decode the manufacturing date to an ISO8601 date |
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# Version 1.3 2006-05-21 Jean Delvare <khali@linux-fr.org> |
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# detect undefined manufacturer code and handle it properly |
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# round up timing data |
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# minor display adjustments |
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# group cycle and access times, display the CAS value for each (SDRAM) |
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# refactor some bitfield tests into loops (SDRAM) |
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# display latencies and burst length on a single line (SDRAM) |
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# don't display manufacturing location when undefined |
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# check that the manufacturing date is proper BCD, else fall back to |
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# hexadecimal display |
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# Version 1.4 2006-05-26 Jean Delvare <khali@linux-fr.org> |
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# fix latencies decoding (SDRAM) |
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# fix CAS latency decoding (DDR SDRAM) |
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# decode latencies, timings and module height (DDR SDRAM) |
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# decode size (Direct Rambus, Rambus) |
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# decode latencies and timings (DDR2 SDRAM) |
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# SPD revision decoding depends on memory type |
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# use more user-friendly labels |
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# fix HTML formatted output on checksum error |
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# Version 1.5 2007-11-08 Jean Delvare <khali@linux-fr.org> |
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# fix module speed (DDR2 SDRAM) |
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# |
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# |
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# EEPROM data decoding for SDRAM DIMM modules. |
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# |
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# The eeprom driver must be loaded. For kernels older than 2.6.0, the |
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# eeprom driver can be found in the lm-sensors package. |
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Jean Delvare
18 years ago