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+/*
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+ * JFFS2 -- Journalling Flash File System, Version 2.
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+ *
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+ * Copyright (C) 2002-2003 Free Software Foundation, Inc.
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+ *
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+ * Created by David Woodhouse <dwmw2@cambridge.redhat.com>
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+ *
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+ * For licensing information, see the file 'LICENCE' in this directory.
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+ *
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+ * $Id: os-ecos.h,v 1.24 2005/02/09 09:23:55 pavlov Exp $
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+ *
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+ */
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+
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+#ifndef __JFFS2_OS_RTTHREAD_H__
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+#define __JFFS2_OS_RTTHREAD_H__
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+
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+#include <rtthread.h>
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+#define printf rt_kprintf
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+
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+//#include <pkgconf/fs_jffs2.h>
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+//#include <cyg/io/io.h>
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+//#include <sys/types.h>
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+#include <asm/atomic.h>
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+#include <linux/stat.h>
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+#include <linux/compiler.h>
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+
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+//#include <pkgconf/system.h>
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+//#include <pkgconf/hal.h>
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+//#include <pkgconf/io_fileio.h>
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+
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+//#include <cyg/infra/cyg_trac.h> // tracing macros
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+//#include <cyg/infra/cyg_ass.h> // assertion macros
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+
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+//#if defined (__GNUC__)
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+//#include <unistd.h>
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+//#elif defined (MSVC)
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+//#else
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+//#endif
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+
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+#include "os_sys_stat.h"//#include <sys/types.h>
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+//#include <fcntl.h>
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+//#include <sys/stat.h>
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+//#include <errno.h> //fixme
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+
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+//#include <dirent.h>
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+#define CYGPKG_FILEIO_DIRENT_DTYPE
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+struct dirent
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+{
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+#ifdef CYGPKG_FILEIO_DIRENT_DTYPE
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+
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+ mode_t d_type; // Only supported with FATFS, RAMFS, ROMFS,
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+ // and JFFS2.
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+ // d_type is not part of POSIX so
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+ // should be used with caution.
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+#endif
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+ char d_name[NAME_MAX+1];
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+};
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+
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+
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+#include <stdlib.h>
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+#include <string.h>
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+
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+#include <cyg/fileio/fileio.h> //prife
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+
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+//#include <cyg/hal/drv_api.h>
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+//#include <cyg/infra/diag.h>
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+
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+//#include <cyg/io/flash.h>
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+
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+#include <linux/types.h>
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+#include <linux/list.h>
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+#include <asm/bug.h>
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+
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+//#define printf diag_printf //prife
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+
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+struct _inode;
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+struct super_block;
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+
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+struct iovec {
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+ void *iov_base;
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+ ssize_t iov_len;
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+};
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+
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+static inline unsigned int full_name_hash(const unsigned char * name, unsigned int len) {
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+
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+ unsigned hash = 0;
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+ while (len--) {
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+ hash = (hash << 4) | (hash >> 28);
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+ hash ^= *(name++);
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+ }
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+ return hash;
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+}
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+
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+#ifdef CYGOPT_FS_JFFS2_WRITE
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+#define jffs2_is_readonly(c) (0)
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+#else
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+#define jffs2_is_readonly(c) (1)
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+#endif
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+
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+/* NAND flash not currently supported on eCos */
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+#define jffs2_can_mark_obsolete(c) (1)
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+
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+#define JFFS2_INODE_INFO(i) (&(i)->jffs2_i)
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+#define OFNI_EDONI_2SFFJ(f) ((struct _inode *) ( ((char *)f) - ((char *)(&((struct _inode *)NULL)->jffs2_i)) ) )
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+
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+#define JFFS2_F_I_SIZE(f) (OFNI_EDONI_2SFFJ(f)->i_size)
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+#define JFFS2_F_I_MODE(f) (OFNI_EDONI_2SFFJ(f)->i_mode)
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+#define JFFS2_F_I_UID(f) (OFNI_EDONI_2SFFJ(f)->i_uid)
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+#define JFFS2_F_I_GID(f) (OFNI_EDONI_2SFFJ(f)->i_gid)
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+#define JFFS2_F_I_CTIME(f) (OFNI_EDONI_2SFFJ(f)->i_ctime)
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+#define JFFS2_F_I_MTIME(f) (OFNI_EDONI_2SFFJ(f)->i_mtime)
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+#define JFFS2_F_I_ATIME(f) (OFNI_EDONI_2SFFJ(f)->i_atime)
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+
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+/* FIXME: eCos doesn't hav a concept of device major/minor numbers */
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+#define JFFS2_F_I_RDEV_MIN(f) ((OFNI_EDONI_2SFFJ(f)->i_rdev)&0xff)
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+#define JFFS2_F_I_RDEV_MAJ(f) ((OFNI_EDONI_2SFFJ(f)->i_rdev)>>8)
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+
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+#define get_seconds cyg_timestamp
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+
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+struct _inode {
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+ cyg_uint32 i_ino;
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+
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+ int i_count;
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+ mode_t i_mode;
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+ nlink_t i_nlink; // Could we dispense with this?
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+ uid_t i_uid;
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+ gid_t i_gid;
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+ time_t i_atime;
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+ time_t i_mtime;
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+ time_t i_ctime;
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+// union {
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+ unsigned short i_rdev; // For devices only
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+ struct _inode * i_parent; // For directories only
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+ off_t i_size; // For files only
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+// };
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+ struct super_block * i_sb;
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+
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+ struct jffs2_inode_info jffs2_i;
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+
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+ struct _inode * i_cache_prev; // We need doubly-linked?
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+ struct _inode * i_cache_next;
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+};
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+
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+#define JFFS2_SB_INFO(sb) (&(sb)->jffs2_sb)
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+#define OFNI_BS_2SFFJ(c) ((struct super_block *) ( ((char *)c) - ((char *)(&((struct super_block *)NULL)->jffs2_sb)) ) )
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+
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+struct super_block {
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+ struct jffs2_sb_info jffs2_sb;
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+ struct _inode * s_root;
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+ unsigned long s_mount_count;
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+ cyg_io_handle_t s_dev;
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+
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+//#ifdef CYGOPT_FS_JFFS2_GCTHREAD
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+// cyg_mutex_t s_lock; // Lock the inode cache
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+// cyg_flag_t s_gc_thread_flags; // Communication with the gcthread
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+// cyg_handle_t s_gc_thread_handle;
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+// cyg_thread s_gc_thread;
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+//#if (CYGNUM_JFFS2_GC_THREAD_STACK_SIZE >= CYGNUM_HAL_STACK_SIZE_MINIMUM)
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+// char s_gc_thread_stack[CYGNUM_JFFS2_GC_THREAD_STACK_SIZE];
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+//#else
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+// char s_gc_thread_stack[CYGNUM_HAL_STACK_SIZE_MINIMUM];
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+//#endif
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+// cyg_mtab_entry *mte;
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+//#endif
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+
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+#ifdef CYGOPT_FS_JFFS2_GCTHREAD
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+ struct rt_mutex s_lock; // Lock the inode cache
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+ struct rt_event s_gc_thread_flags; // Communication with the gcthread
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+ //void (*s_gc_thread_handle)(void *parameter);
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+ struct rt_thread s_gc_thread;
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+//#if (CYGNUM_JFFS2_GC_THREAD_STACK_SIZE >= CYGNUM_HAL_STACK_SIZE_MINIMUM)
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+// char s_gc_thread_stack[CYGNUM_JFFS2_GC_THREAD_STACK_SIZE];
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+//#else
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+// char s_gc_thread_stack[CYGNUM_HAL_STACK_SIZE_MINIMUM];
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+//#endif
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+ #define CYGNUM_JFFS2_GC_THREAD_STACK_SIZE (1024*4)
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+ char s_gc_thread_stack[CYGNUM_JFFS2_GC_THREAD_STACK_SIZE];
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+
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+ cyg_mtab_entry *mte;
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+#endif
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+
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+};
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+
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+#define sleep_on_spinunlock(wq, sl) spin_unlock(sl)
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+#define EBADFD 32767
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+
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+/* background.c */
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+#ifdef CYGOPT_FS_JFFS2_GCTHREAD
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+void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c);
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+void jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c);
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+void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c);
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+#else
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+static inline void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c)
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+{
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+ /* We don't have a GC thread in eCos (yet) */
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+}
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+#endif
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+
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+/* fs-ecos.c */
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+struct _inode *jffs2_new_inode (struct _inode *dir_i, int mode, struct jffs2_raw_inode *ri);
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+struct _inode *jffs2_iget(struct super_block *sb, cyg_uint32 ino);
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+void jffs2_iput(struct _inode * i);
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+void jffs2_gc_release_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f);
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+struct jffs2_inode_info *jffs2_gc_fetch_inode(struct jffs2_sb_info *c, int inum, int nlink);
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+unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
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+ unsigned long offset, unsigned long *priv);
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+void jffs2_gc_release_page(struct jffs2_sb_info *c, unsigned char *pg, unsigned long *priv);
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+
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+/* Avoid polluting eCos namespace with names not starting in jffs2_ */
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+#define os_to_jffs2_mode(x) jffs2_from_os_mode(x)
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+uint32_t jffs2_from_os_mode(uint32_t osmode);
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+uint32_t jffs2_to_os_mode (uint32_t jmode);
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+
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+
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+/* flashio.c */
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+cyg_bool jffs2_flash_read(struct jffs2_sb_info *c, cyg_uint32 read_buffer_offset,
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+ const size_t size, size_t * return_size, unsigned char * write_buffer);
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+cyg_bool jffs2_flash_write(struct jffs2_sb_info *c, cyg_uint32 write_buffer_offset,
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+ const size_t size, size_t * return_size, unsigned char * read_buffer);
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+int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct iovec *vecs,
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+ unsigned long count, loff_t to, size_t *retlen);
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+cyg_bool jffs2_flash_erase(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
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+
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+// dir-ecos.c
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+struct _inode *jffs2_lookup(struct _inode *dir_i, const unsigned char *name, int namelen);
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+int jffs2_create(struct _inode *dir_i, const unsigned char *d_name, int mode, struct _inode **new_i);
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+int jffs2_mkdir (struct _inode *dir_i, const unsigned char *d_name, int mode);
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+int jffs2_link (struct _inode *old_d_inode, struct _inode *dir_i, const unsigned char *d_name);
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+int jffs2_unlink(struct _inode *dir_i, struct _inode *d_inode, const unsigned char *d_name);
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+int jffs2_rmdir (struct _inode *dir_i, struct _inode *d_inode, const unsigned char *d_name);
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+int jffs2_rename (struct _inode *old_dir_i, struct _inode *d_inode, const unsigned char *old_d_name,
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+ struct _inode *new_dir_i, const unsigned char *new_d_name);
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+
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+/* erase.c */
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+static inline void jffs2_erase_pending_trigger(struct jffs2_sb_info *c)
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+{ }
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+
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+#ifndef CONFIG_JFFS2_FS_WRITEBUFFER
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+#define SECTOR_ADDR(x) ( ((unsigned long)(x) & ~(c->sector_size-1)) )
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+#define jffs2_can_mark_obsolete(c) (1)
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+#define jffs2_cleanmarker_oob(c) (0)
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+#define jffs2_write_nand_cleanmarker(c,jeb) (-EIO)
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+
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+#define jffs2_flush_wbuf_pad(c) (c=c)
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+#define jffs2_flush_wbuf_gc(c, i) ({ (void)(c), (void) i, 0; })
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+#define jffs2_nand_read_failcnt(c,jeb) do { ; } while(0)
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+#define jffs2_write_nand_badblock(c,jeb,p) (0)
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+#define jffs2_flash_setup(c) (0)
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+#define jffs2_nand_flash_cleanup(c) do {} while(0)
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+#define jffs2_wbuf_dirty(c) (0)
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+#define jffs2_flash_writev(a,b,c,d,e,f) jffs2_flash_direct_writev(a,b,c,d,e)
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+#define jffs2_wbuf_timeout NULL
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+#define jffs2_wbuf_process NULL
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+#define jffs2_nor_ecc(c) (0)
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+#else
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+#error no nand yet
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+#endif
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+
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+#ifndef BUG_ON
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+#define BUG_ON(x) do { if (unlikely(x)) BUG(); } while(0)
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+#endif
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+
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+#define __init
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+
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+#endif /* __JFFS2_OS_ECOS_H__ */
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bernard.xiong@gmail.com