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New CRC package from RedBoot CRC code
- From: Andrew Lunn <andrew dot lunn at ascom dot ch>
- To: eCos Patches <ecos-patches at sources dot redhat dot com>
- Date: Fri, 9 Aug 2002 10:57:57 +0200
- Subject: New CRC package from RedBoot CRC code
Hi Folks
I've made a new package from the CRC code in the redboot package. That
code is generally useful, so it makes sense to put it into a package
of its own so anything can use it. I've not yet take it out of
RedBoot, i want to get this new packages accepted and incorporated
first.
There are three algorithms:
POSIX 1003 standard 32 bit CRC.
Gary S. Brown's 32 bit CRC
A 16 bit CRC.
There is a test case. For the POSIX code i made sure that it agrees
with the linux cksum program. It would be nice if someone could run
the test case on a big endian system just to make sure there are no
surprises.
There is documentation in SGML. If you go into doc/sgml and do
./makemakefile ; make html
you can read it as the last chapter.
The patch puts the package in packages/services/crc and the header
file goes into install/include/cyg/crc/crc.h when you build a work
tree. Any objections to this?
Andrew
diff -u -r -N -x CVS clean/ecos/packages/ChangeLog ecos/packages/ChangeLog
--- clean/ecos/packages/ChangeLog Wed Aug 7 17:10:40 2002
+++ ecos/packages/ChangeLog Thu Aug 8 18:24:16 2002
@@ -1,3 +1,7 @@
+2002-08-07 Andrew Lunn <andrew.lunn@ascom.ch>
+
+ * ecos.db: Added CRC package.
+
2002-08-07 Gary Thomas <gthomas@ecoscentric.com>
* pkgconf/rules.doc: The location of the various stylesheets, etc,
diff -u -r -N -x CVS clean/ecos/packages/ecos.db ecos/packages/ecos.db
--- clean/ecos/packages/ecos.db Tue Aug 6 21:30:02 2002
+++ ecos/packages/ecos.db Thu Aug 8 09:47:15 2002
@@ -1516,6 +1516,15 @@
This package provides some generic support for power management."
}
+package CYGPKG_CRC {
+ alias { "CRC support" crc }
+ directory services/crc
+ script crc.cdl
+ description "
+This package provides support for CRC functions, including the
+POSIX 1003 defined CRC algorithm."
+}
+
package CYGPKG_UITRON {
alias { "uITRON compatibility" uitron }
directory compat/uitron
diff -u -r -N -x CVS clean/ecos/packages/services/crc/current/ChangeLog ecos/packages/services/crc/current/ChangeLog
--- clean/ecos/packages/services/crc/current/ChangeLog Thu Jan 1 01:00:00 1970
+++ ecos/packages/services/crc/current/ChangeLog Fri Aug 9 10:35:22 2002
@@ -0,0 +1,39 @@
+2002-08-07 Andrew Lunn <andrew.lunn@ascom.ch>
+
+ * Created a new package from the POSIX CRC routine
+ embedded in RedBoot.
+
+//===========================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 2002 Andrew Lunn
+//
+// eCos 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 or (at your option) any later version.
+//
+// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license/
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//===========================================================================
diff -u -r -N -x CVS clean/ecos/packages/services/crc/current/cdl/crc.cdl ecos/packages/services/crc/current/cdl/crc.cdl
--- clean/ecos/packages/services/crc/current/cdl/crc.cdl Thu Jan 1 01:00:00 1970
+++ ecos/packages/services/crc/current/cdl/crc.cdl Thu Aug 8 17:38:30 2002
@@ -0,0 +1,70 @@
+# ====================================================================
+#
+# crc.cdl
+#
+# CRC calculators.
+#
+# ====================================================================
+#####ECOSGPLCOPYRIGHTBEGIN####
+## -------------------------------------------
+## This file is part of eCos, the Embedded Configurable Operating System.
+## Copyright (C) 2002 Andrew Lunn
+##
+## eCos 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 or (at your option) any later version.
+##
+## eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
+## 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+##
+## As a special exception, if other files instantiate templates or use macros
+## or inline functions from this file, or you compile this file and link it
+## with other works to produce a work based on this file, this file does not
+## by itself cause the resulting work to be covered by the GNU General Public
+## License. However the source code for this file must still be made available
+## in accordance with section (3) of the GNU General Public License.
+##
+## This exception does not invalidate any other reasons why a work based on
+## this file might be covered by the GNU General Public License.
+##
+## Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+## at http://sources.redhat.com/ecos/ecos-license/
+## -------------------------------------------
+#####ECOSGPLCOPYRIGHTEND####
+# ====================================================================
+######DESCRIPTIONBEGIN####
+#
+# Author(s): Andrew Lunn
+# Original data: Andrew Lunn
+# Contributors:
+# Date: 2002-08-06
+#
+#####DESCRIPTIONEND####
+#
+# ====================================================================
+
+cdl_package CYGPKG_CRC {
+ display "Compute CRCs"
+ include_dir cyg/crc
+
+ compile posix_crc.c crc16.c crc32.c
+ description "
+ This package provides support for CRC calculation. Currently
+ this is the POSIX 1003 defined CRC algorithm, a 32 CRC by
+ Gary S. Brown, and a 16 bit CRC."
+
+ cdl_option CYGPKG_CRC_TESTS {
+ display "POSIX CRC tests"
+ flavor data
+ no_define
+ calculated { "tests/crc_test.c" }
+ }
+}
+
+
diff -u -r -N -x CVS clean/ecos/packages/services/crc/current/doc/crc.sgml ecos/packages/services/crc/current/doc/crc.sgml
--- clean/ecos/packages/services/crc/current/doc/crc.sgml Thu Jan 1 01:00:00 1970
+++ ecos/packages/services/crc/current/doc/crc.sgml Thu Aug 8 18:17:19 2002
@@ -0,0 +1,69 @@
+<PART ID="services-crc">
+<TITLE>CRC Algorithms</TITLE>
+<PARTINTRO>
+<PARA>
+The CRC package provides implementation of CRC algorithms. This
+includes the POSIX CRC calculation which produces the same result as
+the cksum command on Linux, another 32 bit CRC by Gary S. Brown and a
+16bit CRC.
+</PARA>
+</PARTINTRO>
+<CHAPTER id="crc-functions">
+<TITLE>CRC Functions</TITLE>
+<SECT1 id="services-crc-api">
+<TITLE>CRC API</TITLE>
+<para>
+The package implements a number of CRC functions as described below.
+The API to these functions is in the include file
+<filename>cyg/crc/crc.h</filename>.
+</para>
+<sect2 id="services-crc-api-cyg-posix-crc32">
+<title>cyg_posix_crc32</title>
+<para>
+This function implements a 32 bit CRC which is compliant to the POSIX
+1008.2 Standard. This is the same as the Linux cksum program.
+</para>
+<programlisting>
+unsigned long cyg_posix_crc32(unsigned char * s, int len);
+</programlisting>
+<para>
+The CRC calculation is run over the data pointed to by
+<parameter>s</parameter>, of length <parameter>len</parameter>. The
+CRC is returned as an unsigned long.</para>
+</sect2>
+
+<sect2 id="services-crc-api-cyg-crc32">
+<title>cyg_crc32</title>
+<para>
+This function implements a 32 bit CRC by Gary S. Brown. It uses the
+polynomial
+X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0.
+</para>
+<programlisting>
+unsigned long cyg_crc32(unsigned char * s, int len);
+</programlisting>
+<para>
+The CRC calculation is run over the data pointed to by
+<parameter>s</parameter>, of length <parameter>len</parameter>. The
+CRC is returned as an unsigned long.</para>
+</sect2>
+
+<sect2 id="services-crc-api-cyg-crc16">
+<title>cyg_crc16</title>
+<para>
+This function implements a 16 bit CRC. It uses the polynomial
+x^16+x^12+x^5+1.
+</para>
+<programlisting>
+unsigned short cyg_crc16(unsigned char * s, int len);
+</programlisting>
+<para>
+The CRC calculation is run over the data pointed to by
+<parameter>s</parameter>, of length <parameter>len</parameter>. The
+CRC is returned as an unsigned short.</para>
+</sect2>
+
+</SECT1>
+</CHAPTER>
+</PART>
+
diff -u -r -N -x CVS clean/ecos/packages/services/crc/current/include/crc.h ecos/packages/services/crc/current/include/crc.h
--- clean/ecos/packages/services/crc/current/include/crc.h Thu Jan 1 01:00:00 1970
+++ ecos/packages/services/crc/current/include/crc.h Thu Aug 8 17:40:15 2002
@@ -0,0 +1,76 @@
+//==========================================================================
+//
+// crc.h
+//
+// Interface for the CRC algorithms.
+//
+//==========================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 2002 Andrew Lunn
+//
+// eCos 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 or (at your option) any later version.
+//
+// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license/
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s): Andrew Lunn
+// Contributors: Andrew Lunn
+// Date: 2002-08-06
+// Purpose:
+// Description:
+//
+// This code is part of eCos (tm).
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+#ifndef _SERVICES_CRC_CRC_H_
+#define _SERVICES_CRC_CRC_H_
+
+// Compute a CRC, using the POSIX 1003 definition
+
+unsigned long
+cyg_posix_crc32(unsigned char *s, int len);
+
+// Gary S. Brown's 32 bit CRC
+
+unsigned long
+cyg_crc32(unsigned char *s, int len);
+
+// 16 bit CRC with polynomial x^16+x^12+x^5+1
+
+unsigned short
+cyg_crc16(unsigned char *s, int len);
+
+#endif // _SERVICES_CRC_CRC_H_
+
+
+
diff -u -r -N -x CVS clean/ecos/packages/services/crc/current/src/crc16.c ecos/packages/services/crc/current/src/crc16.c
--- clean/ecos/packages/services/crc/current/src/crc16.c Thu Jan 1 01:00:00 1970
+++ ecos/packages/services/crc/current/src/crc16.c Thu Aug 8 18:11:58 2002
@@ -0,0 +1,106 @@
+//==========================================================================
+//
+// crc16.c
+//
+// 16 bit CRC with polynomial x^16+x^12+x^5+1
+//
+//==========================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+// Copyright (C) 2002 Gary Thomas
+//
+// eCos 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 or (at your option) any later version.
+//
+// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license/
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s): gthomas
+// Contributors: gthomas,asl
+// Date: 2001-01-31
+// Purpose:
+// Description:
+//
+// This code is part of eCos (tm).
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+#include <cyg/crc/crc.h>
+
+// Table of CRC constants - implements x^16+x^12+x^5+1
+static const unsigned short crc16_tab[] = {
+ 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
+ 0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
+ 0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
+ 0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
+ 0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
+ 0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
+ 0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
+ 0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
+ 0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
+ 0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
+ 0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
+ 0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
+ 0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
+ 0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
+ 0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
+ 0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
+ 0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
+ 0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
+ 0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
+ 0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
+ 0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
+ 0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
+ 0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
+ 0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
+ 0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
+ 0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
+ 0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
+ 0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
+ 0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
+ 0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
+ 0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
+ 0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0,
+};
+
+unsigned short
+cyg_crc16(unsigned char *buf, int len)
+{
+ int i;
+ unsigned short cksum;
+
+ cksum = 0;
+ for (i = 0; i < len; i++) {
+ cksum = crc16_tab[((cksum>>8) ^ *buf++) & 0xFF] ^ (cksum << 8);
+ }
+ return cksum;
+}
+
diff -u -r -N -x CVS clean/ecos/packages/services/crc/current/src/crc32.c ecos/packages/services/crc/current/src/crc32.c
--- clean/ecos/packages/services/crc/current/src/crc32.c Thu Jan 1 01:00:00 1970
+++ ecos/packages/services/crc/current/src/crc32.c Thu Aug 8 18:11:59 2002
@@ -0,0 +1,136 @@
+//==========================================================================
+//
+// crc32.c
+//
+// Gary S. Brown's 32 bit CRC
+//
+//==========================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+// Copyright (C) 2002 Gary Thomas
+//
+// eCos 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 or (at your option) any later version.
+//
+// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license/
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s): gthomas
+// Contributors: gthomas,asl
+// Date: 2001-01-31
+// Purpose:
+// Description:
+//
+// This code is part of eCos (tm).
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+#include <cyg/crc/crc.h>
+
+ /* ====================================================================== */
+ /* COPYRIGHT (C) 1986 Gary S. Brown. You may use this program, or */
+ /* code or tables extracted from it, as desired without restriction. */
+ /* */
+ /* First, the polynomial itself and its table of feedback terms. The */
+ /* polynomial is */
+ /* X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0 */
+ /* */
+ /* ====================================================================== */
+
+static const unsigned long crc32_tab[] = {
+ 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
+ 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
+ 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
+ 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
+ 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
+ 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
+ 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
+ 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
+ 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
+ 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
+ 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
+ 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
+ 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
+ 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
+ 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
+ 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
+ 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
+ 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
+ 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
+ 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
+ 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
+ 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
+ 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
+ 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
+ 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
+ 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
+ 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
+ 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
+ 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
+ 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
+ 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
+ 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
+ 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
+ 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
+ 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
+ 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
+ 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
+ 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
+ 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
+ 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
+ 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
+ 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
+ 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
+ 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
+ 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
+ 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
+ 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
+ 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
+ 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
+ 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
+ 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
+ 0x2d02ef8dL
+ };
+
+/* Return a 32-bit CRC of the contents of the buffer. */
+
+unsigned long
+cyg_crc32(unsigned char *s, int len)
+{
+ int i;
+ unsigned long crc32val;
+
+ crc32val = 0;
+ for (i = 0; i < len; i++) {
+ crc32val = crc32_tab[(crc32val ^ s[i]) & 0xff] ^ (crc32val >> 8);
+ }
+ return crc32val;
+}
diff -u -r -N -x CVS clean/ecos/packages/services/crc/current/src/posix_crc.c ecos/packages/services/crc/current/src/posix_crc.c
--- clean/ecos/packages/services/crc/current/src/posix_crc.c Thu Jan 1 01:00:00 1970
+++ ecos/packages/services/crc/current/src/posix_crc.c Thu Aug 8 09:46:21 2002
@@ -0,0 +1,118 @@
+//==========================================================================
+//
+// posix_crc.c
+//
+// POSIX CRC calculation
+//
+//==========================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+// Copyright (C) 2002 Gary Thomas
+//
+// eCos 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 or (at your option) any later version.
+//
+// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license/
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s): gthomas
+// Contributors: gthomas,asl
+// Date: 2001-01-31
+// Purpose:
+// Description:
+//
+// This code is part of eCos (tm).
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+#include <cyg/crc/crc.h>
+
+// Compute a CRC, using the POSIX 1003 definition
+
+// Same basic algorithm as CRC-16, but the bits are defined in the
+// opposite order. This computation matches the output of the
+// Linux 'cksum' program.
+
+static const unsigned long posix_crc32_tab[] = {
+ 0x00000000, 0x04C11DB7, 0x09823B6E, 0x0D4326D9, 0x130476DC, 0x17C56B6B, 0x1A864DB2, 0x1E475005,
+ 0x2608EDB8, 0x22C9F00F, 0x2F8AD6D6, 0x2B4BCB61, 0x350C9B64, 0x31CD86D3, 0x3C8EA00A, 0x384FBDBD,
+ 0x4C11DB70, 0x48D0C6C7, 0x4593E01E, 0x4152FDA9, 0x5F15ADAC, 0x5BD4B01B, 0x569796C2, 0x52568B75,
+ 0x6A1936C8, 0x6ED82B7F, 0x639B0DA6, 0x675A1011, 0x791D4014, 0x7DDC5DA3, 0x709F7B7A, 0x745E66CD,
+ 0x9823B6E0, 0x9CE2AB57, 0x91A18D8E, 0x95609039, 0x8B27C03C, 0x8FE6DD8B, 0x82A5FB52, 0x8664E6E5,
+ 0xBE2B5B58, 0xBAEA46EF, 0xB7A96036, 0xB3687D81, 0xAD2F2D84, 0xA9EE3033, 0xA4AD16EA, 0xA06C0B5D,
+ 0xD4326D90, 0xD0F37027, 0xDDB056FE, 0xD9714B49, 0xC7361B4C, 0xC3F706FB, 0xCEB42022, 0xCA753D95,
+ 0xF23A8028, 0xF6FB9D9F, 0xFBB8BB46, 0xFF79A6F1, 0xE13EF6F4, 0xE5FFEB43, 0xE8BCCD9A, 0xEC7DD02D,
+ 0x34867077, 0x30476DC0, 0x3D044B19, 0x39C556AE, 0x278206AB, 0x23431B1C, 0x2E003DC5, 0x2AC12072,
+ 0x128E9DCF, 0x164F8078, 0x1B0CA6A1, 0x1FCDBB16, 0x018AEB13, 0x054BF6A4, 0x0808D07D, 0x0CC9CDCA,
+ 0x7897AB07, 0x7C56B6B0, 0x71159069, 0x75D48DDE, 0x6B93DDDB, 0x6F52C06C, 0x6211E6B5, 0x66D0FB02,
+ 0x5E9F46BF, 0x5A5E5B08, 0x571D7DD1, 0x53DC6066, 0x4D9B3063, 0x495A2DD4, 0x44190B0D, 0x40D816BA,
+ 0xACA5C697, 0xA864DB20, 0xA527FDF9, 0xA1E6E04E, 0xBFA1B04B, 0xBB60ADFC, 0xB6238B25, 0xB2E29692,
+ 0x8AAD2B2F, 0x8E6C3698, 0x832F1041, 0x87EE0DF6, 0x99A95DF3, 0x9D684044, 0x902B669D, 0x94EA7B2A,
+ 0xE0B41DE7, 0xE4750050, 0xE9362689, 0xEDF73B3E, 0xF3B06B3B, 0xF771768C, 0xFA325055, 0xFEF34DE2,
+ 0xC6BCF05F, 0xC27DEDE8, 0xCF3ECB31, 0xCBFFD686, 0xD5B88683, 0xD1799B34, 0xDC3ABDED, 0xD8FBA05A,
+ 0x690CE0EE, 0x6DCDFD59, 0x608EDB80, 0x644FC637, 0x7A089632, 0x7EC98B85, 0x738AAD5C, 0x774BB0EB,
+ 0x4F040D56, 0x4BC510E1, 0x46863638, 0x42472B8F, 0x5C007B8A, 0x58C1663D, 0x558240E4, 0x51435D53,
+ 0x251D3B9E, 0x21DC2629, 0x2C9F00F0, 0x285E1D47, 0x36194D42, 0x32D850F5, 0x3F9B762C, 0x3B5A6B9B,
+ 0x0315D626, 0x07D4CB91, 0x0A97ED48, 0x0E56F0FF, 0x1011A0FA, 0x14D0BD4D, 0x19939B94, 0x1D528623,
+ 0xF12F560E, 0xF5EE4BB9, 0xF8AD6D60, 0xFC6C70D7, 0xE22B20D2, 0xE6EA3D65, 0xEBA91BBC, 0xEF68060B,
+ 0xD727BBB6, 0xD3E6A601, 0xDEA580D8, 0xDA649D6F, 0xC423CD6A, 0xC0E2D0DD, 0xCDA1F604, 0xC960EBB3,
+ 0xBD3E8D7E, 0xB9FF90C9, 0xB4BCB610, 0xB07DABA7, 0xAE3AFBA2, 0xAAFBE615, 0xA7B8C0CC, 0xA379DD7B,
+ 0x9B3660C6, 0x9FF77D71, 0x92B45BA8, 0x9675461F, 0x8832161A, 0x8CF30BAD, 0x81B02D74, 0x857130C3,
+ 0x5D8A9099, 0x594B8D2E, 0x5408ABF7, 0x50C9B640, 0x4E8EE645, 0x4A4FFBF2, 0x470CDD2B, 0x43CDC09C,
+ 0x7B827D21, 0x7F436096, 0x7200464F, 0x76C15BF8, 0x68860BFD, 0x6C47164A, 0x61043093, 0x65C52D24,
+ 0x119B4BE9, 0x155A565E, 0x18197087, 0x1CD86D30, 0x029F3D35, 0x065E2082, 0x0B1D065B, 0x0FDC1BEC,
+ 0x3793A651, 0x3352BBE6, 0x3E119D3F, 0x3AD08088, 0x2497D08D, 0x2056CD3A, 0x2D15EBE3, 0x29D4F654,
+ 0xC5A92679, 0xC1683BCE, 0xCC2B1D17, 0xC8EA00A0, 0xD6AD50A5, 0xD26C4D12, 0xDF2F6BCB, 0xDBEE767C,
+ 0xE3A1CBC1, 0xE760D676, 0xEA23F0AF, 0xEEE2ED18, 0xF0A5BD1D, 0xF464A0AA, 0xF9278673, 0xFDE69BC4,
+ 0x89B8FD09, 0x8D79E0BE, 0x803AC667, 0x84FBDBD0, 0x9ABC8BD5, 0x9E7D9662, 0x933EB0BB, 0x97FFAD0C,
+ 0xAFB010B1, 0xAB710D06, 0xA6322BDF, 0xA2F33668, 0xBCB4666D, 0xB8757BDA, 0xB5365D03, 0xB1F740B4
+ };
+
+unsigned long
+cyg_posix_crc32(unsigned char *s, int len)
+{
+ int i;
+ unsigned long crc32val;
+ unsigned long length;
+
+ crc32val = 0;
+ for (i = 0; i < len; i++) {
+ crc32val = (crc32val << 8) ^ posix_crc32_tab[((crc32val >> 24) ^ *s++) & 0xFF];
+ }
+ length = len;
+ while (length > 0) {
+ crc32val = (crc32val << 8) ^ posix_crc32_tab[((crc32val >> 24) ^ length) & 0xFF];
+ length >>= 8;
+ }
+ crc32val = ~crc32val;
+ return crc32val;
+}
+
diff -u -r -N -x CVS clean/ecos/packages/services/crc/current/tests/crc_test.c ecos/packages/services/crc/current/tests/crc_test.c
--- clean/ecos/packages/services/crc/current/tests/crc_test.c Thu Jan 1 01:00:00 1970
+++ ecos/packages/services/crc/current/tests/crc_test.c Fri Aug 9 10:39:19 2002
@@ -0,0 +1,100 @@
+//=================================================================
+//
+// crc_test.c
+//
+// crc test cases
+//
+//==========================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 2002 Andrew Lunn
+//
+// eCos 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 or (at your option) any later version.
+//
+// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license/
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s): asl
+// Contributors: asl
+// Date: 2002-08-06
+// Description: Tests the calculation code
+//####DESCRIPTIONEND####
+
+#include <cyg/infra/testcase.h>
+#include <cyg/crc/crc.h>
+
+static char license_txt[] =
+" GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.
+ 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Library General Public License instead.) You can apply it to
+your programs, too.";
+
+externC void
+cyg_start( void )
+{
+ CYG_TEST_INIT();
+
+ CYG_TEST_INFO("Calculating CRCs");
+
+ if (1500790746l != cyg_posix_crc32(license_txt,sizeof(license_txt)-1)) {
+ CYG_TEST_FAIL("Wrong POSIX CRC32 calculation");
+ } else {
+ CYG_TEST_PASS("POSIX CRC32 calculation");
+ }
+
+ if (1247800780 != cyg_crc32(license_txt,sizeof(license_txt)-1)) {
+ CYG_TEST_FAIL("Wrong Gary S. Browns' crc32 calculation");
+ } else {
+ CYG_TEST_PASS("Gary S. Browns' crc32 calculation");
+ }
+
+ if (32256 != cyg_crc16(license_txt,sizeof(license_txt)-1)) {
+ CYG_TEST_FAIL_FINISH("Wrong 16bit CRC calculation");
+ } else {
+ CYG_TEST_PASS_FINISH("16bit CRC calculation");
+ }
+}
+
+
+