# ==================================================================== # # jffs2.cdl # # JFFS2 Filesystem configuration data # # $Id: jffs2.cdl,v 1.20 2005/07/30 15:25:45 lunn Exp $ # # ==================================================================== #####ECOSGPLCOPYRIGHTBEGIN#### ## ------------------------------------------- ## This file is part of eCos, the Embedded Configurable Operating System. ## Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. ## Copyright (C) 2004 eCosCentric Limited ## ## 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): David Woodhouse, Dominic Ostrowski # Original data: ported from JFFS2 by David Woodhouse # Contributors: dominic.ostrowski@3glab.com # Date: 2000-08-28 # #####DESCRIPTIONEND#### # # ==================================================================== cdl_package CYGPKG_FS_JFFS2 { display "JFFS2 filesystem" doc ref/fileio.html include_dir "" requires CYGPKG_IO_FILEIO requires CYGPKG_IO_FLASH requires CYGINT_ISO_MALLOC requires CYGPKG_ISOINFRA requires CYGPKG_ERROR requires CYGINT_ISO_ERRNO requires CYGINT_ISO_ERRNO_CODES requires CYGPKG_IO_FLASH_BLOCK_DEVICE requires CYGPKG_IO_FILEIO_INODE requires CYGPKG_LINUX_COMPAT requires CYGPKG_CRC implements CYGINT_IO_FILEIO_FS compile -library=libextras.a fs-ecos.c compile build.c scan.c malloc-ecos.c nodelist.c nodemgmt.c readinode.c dir-ecos.c read.c compr.c debug.c # This could be overridden by an alternative direct I/O method. compile flashio.c cdl_component CYGOPT_FS_JFFS2_GCTHREAD { display "Support garbage-collection background thread" flavor bool default_value 0 compile gcthread.c requires CYGPKG_KERNEL description " Enable background garbage collection thread, for making free space ahead of time. Leave this off till it's been implemented. And don't implement it till icache locking has been made thread-safe. " cdl_option CYGNUM_JFFS2_GC_THREAD_PRIORITY { display "jffs2 gc thread priority" flavor data default_value { CYGNUM_KERNEL_SCHED_PRIORITIES-2 } legal_values 0 to CYGNUM_KERNEL_SCHED_PRIORITIES description "The jffs2 system contains one garbage collect thread." } cdl_option CYGNUM_JFFS2_GC_THREAD_STACK_SIZE { display "jffs2 gc stackstack size" flavor data legal_values 2048 to 0x7fffffff default_value 8192 description " This option sets the size of the stack used for jffs2 garbage collect thread" } cdl_option CYGNUM_JFFS2_GS_THREAD_TICKS { display "ticks between each garbage collect" flavor data default_value 100 description " This option sets how many clock ticks there will be between each garbage collect operation triggered by the background thread" } } cdl_option CYGOPT_FS_JFFS2_WRITE { display "Include write support for JFFS2" flavor bool compile gc.c write.c erase.c default_value 1 description " Enable writing to JFFS2 file systems; not only reading." } cdl_option CYGOPT_FS_JFFS2_NAND { display "Support for NAND flash" flavor bool define CONFIG_JFFS2_FS_WRITEBUFFER compile wbuf.c requires 0 description " Enable support for JFFS2 on NAND flash." } cdl_option CYGOPT_FS_JFFS2_DEBUG { display "Debug level" flavor data default_value 0 legal_values 0 to 2 define CONFIG_JFFS2_FS_DEBUG description " Debug verbosity of JFFS2 code. Zero is normal operation without debugging. Level 1 adds extra sanity checks and fairly verbose output. Level 2 is insanely loquacious." } cdl_component CYGOPT_FS_JFFS2_COMPRESS { display "Compress data" flavor bool define JFFS2_COMPRESSION default_value 1 description " Compression and decompression are entirely handled by the file system and are fully transparent to applications. However, selecting this option increases the amount of RAM required and slows down read and write operations considerably if you have a slow CPU." cdl_option CYGOPT_FS_JFFS2_COMPRESS_ZLIB { display "Compress data using zlib" flavor bool define CONFIG_JFFS2_ZLIB requires CYGPKG_COMPRESS_ZLIB compile compr_zlib.c default_value 1 description " Use zlib for compression of data. This is the slowest of the compression options available but the most effective." } cdl_option CYGOPT_FS_JFFS2_COMPRESS_RTIME { display "Compress data using rtime" flavor bool define CONFIG_JFFS2_RTIME compile compr_rtime.c default_value 1 description " Use the rtime algorithm for compression of data. This simple algorithm often manages to squeeze and extra few bytes from data already compressed with gzip." } cdl_option CYGOPT_FS_JFFS2_COMPRESS_RUBIN { display "Compress data using rubin" flavor bool define CONFIG_JFFS2_RUBIN requires CYGOPT_FS_JFFS2_COMPRESS compile compr_rubin.c description " Use the rubin algorithm for compression of data. This simple algorithm is faster than zlib but not quite as effective." } cdl_option CYGOPT_FS_JFFS2_COMPRESS_CMODE { display "Set the default compression mode" flavor data default_value { "PRIORITY" } legal_values { "NONE" "PRIORITY" "SIZE" } define CONFIG_JFFS2_CMODE description " You can set here the default compression mode of JFFS2 from the avaiable compression modes. NONE causes no compression to be performed. PRIORITY tries the compressors in a predefined order and chooses the first successfull one. SIZE tries all compressors and chooses the one which has the smallest result" } } cdl_option CYGNUM_FS_JFFS2_RAW_NODE_REF_CACHE_POOL_SIZE { display "Memory pool size" flavor data default_value 0 description " In order to manage data stored in flash, the file system needs to use data structures (jffs2_raw_node_ref) allocated in RAM. You can specify here the maximum number of such structures you expect to be used, which will then be allocated statically. If this option is set to 0, the structures will be allocated dynamically via malloc(), which may incur some memory overhead depending on the particular malloc() implementation used." } cdl_option CYGPKG_FS_JFFS2_CFLAGS_ADD { display "Additional compiler flags" flavor data no_define # We add '-D__ECOS' to trigger eCos-specific code in places. # We add '-nostdinc -iwithprefix include' to avoid picking up # native include files when building on Linux. default_value { "-D__ECOS -nostdinc -iwithprefix include" } description " This option modifies the set of compiler flags for building the JFFS2 package. These flags are used in addition to the set of global flags." } cdl_option CYGPKG_FS_JFFS2_CFLAGS_REMOVE { display "Suppressed compiler flags" flavor data no_define default_value { "" } description " This option modifies the set of compiler flags for building the JFFS2 package. These flags are removed from the set of global flags if present." } # ---------------------------------------------------------------- # Tests cdl_option CYGPKG_FS_JFFS2_TESTS { display "JFFS2 FS tests" flavor data no_define calculated { "tests/jffs2_1 tests/jffs2_2 tests/jffs2_3" } description " This option specifies the set of tests for the JFFS2 FS package." } } # End of jffs2.cdl