1 /*
2 * JFFS2 -- Journalling Flash File System, Version 2.
3 *
4 * Copyright (C) 2002-2003 Free Software Foundation, Inc.
5 *
6 * Created by David Woodhouse <[email protected]>
7 *
8 * For licensing information, see the file 'LICENCE' in this directory.
9 *
10 * $Id: os-ecos.h,v 1.24 2005/02/09 09:23:55 pavlov Exp $
11 *
12 */
13
14 #ifndef __JFFS2_OS_RTTHREAD_H__
15 #define __JFFS2_OS_RTTHREAD_H__
16 #include "jffs2_config.h"
17 #include <rtthread.h>
18 #define printf rt_kprintf
19
20 //#include <pkgconf/fs_jffs2.h>
21 //#include <cyg/io/io.h>
22 //#include <sys/types.h>
23 #include <asm/atomic.h>
24 #include <linux/stat.h>
25 #include <linux/compiler.h>
26
27 //#include <pkgconf/system.h>
28 //#include <pkgconf/hal.h>
29 //#include <pkgconf/io_fileio.h>
30
31 //#include <cyg/infra/cyg_trac.h> // tracing macros
32 //#include <cyg/infra/cyg_ass.h> // assertion macros
33
34 //#if defined (__GNUC__)
35 //#include <unistd.h>
36 //#elif defined (MSVC)
37 //#else
38 //#endif
39
40 #include "os_sys_stat.h"//#include <sys/types.h>
41 //#include <fcntl.h>
42 //#include <sys/stat.h>
43 //#include <errno.h> //fixme
44
45 //#include <dirent.h>
46 #define CYGPKG_FILEIO_DIRENT_DTYPE
47 struct dirent
48 {
49 #ifdef CYGPKG_FILEIO_DIRENT_DTYPE
50
51 mode_t d_type; // Only supported with FATFS, RAMFS, ROMFS,
52 // and JFFS2.
53 // d_type is not part of POSIX so
54 // should be used with caution.
55 #endif
56 char d_name[NAME_MAX+1];
57 };
58
59 #include <string.h>
60
61 #include <cyg/fileio/fileio.h> //prife
62
63 //#include <cyg/hal/drv_api.h>
64 //#include <cyg/infra/diag.h>
65
66 //#include <cyg/io/flash.h>
67
68 #include <linux/types.h>
69 #include <linux/list.h>
70 #include <asm/bug.h>
71
72 //#define printf diag_printf //prife
73
74 struct _inode;
75 struct super_block;
76
77 struct iovec {
78 void *iov_base;
79 ssize_t iov_len;
80 };
81
full_name_hash(const unsigned char * name,unsigned int len)82 static inline unsigned int full_name_hash(const unsigned char * name, unsigned int len) {
83
84 unsigned hash = 0;
85 while (len--) {
86 hash = (hash << 4) | (hash >> 28);
87 hash ^= *(name++);
88 }
89 return hash;
90 }
91
92 #ifdef CYGOPT_FS_JFFS2_WRITE
93 #define jffs2_is_readonly(c) (0)
94 #else
95 #define jffs2_is_readonly(c) (1)
96 #endif
97
98 /* NAND flash not currently supported on eCos */
99 #define jffs2_can_mark_obsolete(c) (1)
100
101 #define JFFS2_INODE_INFO(i) (&(i)->jffs2_i)
102 #define OFNI_EDONI_2SFFJ(f) ((struct _inode *) ( ((char *)f) - ((char *)(&((struct _inode *)NULL)->jffs2_i)) ) )
103
104 #define JFFS2_F_I_SIZE(f) (OFNI_EDONI_2SFFJ(f)->i_size)
105 #define JFFS2_F_I_MODE(f) (OFNI_EDONI_2SFFJ(f)->i_mode)
106 #define JFFS2_F_I_UID(f) (OFNI_EDONI_2SFFJ(f)->i_uid)
107 #define JFFS2_F_I_GID(f) (OFNI_EDONI_2SFFJ(f)->i_gid)
108 #define JFFS2_F_I_CTIME(f) (OFNI_EDONI_2SFFJ(f)->i_ctime)
109 #define JFFS2_F_I_MTIME(f) (OFNI_EDONI_2SFFJ(f)->i_mtime)
110 #define JFFS2_F_I_ATIME(f) (OFNI_EDONI_2SFFJ(f)->i_atime)
111
112 /* FIXME: eCos doesn't hav a concept of device major/minor numbers */
113 #define JFFS2_F_I_RDEV_MIN(f) ((OFNI_EDONI_2SFFJ(f)->i_rdev)&0xff)
114 #define JFFS2_F_I_RDEV_MAJ(f) ((OFNI_EDONI_2SFFJ(f)->i_rdev)>>8)
115
116 #define get_seconds jffs2_get_timestamp
117
118 struct _inode {
119 cyg_uint32 i_ino;
120
121 int i_count;
122 mode_t i_mode;
123 nlink_t i_nlink; // Could we dispense with this?
124 uid_t i_uid;
125 gid_t i_gid;
126 time_t i_atime;
127 time_t i_mtime;
128 time_t i_ctime;
129 // union {
130 unsigned short i_rdev; // For devices only
131 struct _inode * i_parent; // For directories only
132 off_t i_size; // For files only
133 // };
134 struct super_block * i_sb;
135
136 struct jffs2_inode_info jffs2_i;
137
138 struct _inode * i_cache_prev; // We need doubly-linked?
139 struct _inode * i_cache_next;
140 };
141
142 #define JFFS2_SB_INFO(sb) (&(sb)->jffs2_sb)
143 #define OFNI_BS_2SFFJ(c) ((struct super_block *) ( ((char *)c) - ((char *)(&((struct super_block *)NULL)->jffs2_sb)) ) )
144
145 struct super_block {
146 struct jffs2_sb_info jffs2_sb;
147 struct _inode * s_root;
148 unsigned long s_mount_count;
149 cyg_io_handle_t s_dev;
150
151 //#ifdef CYGOPT_FS_JFFS2_GCTHREAD
152 // cyg_mutex_t s_lock; // Lock the inode cache
153 // cyg_flag_t s_gc_thread_flags; // Communication with the gcthread
154 // cyg_handle_t s_gc_thread_handle;
155 // cyg_thread s_gc_thread;
156 //#if (CYGNUM_JFFS2_GC_THREAD_STACK_SIZE >= CYGNUM_HAL_STACK_SIZE_MINIMUM)
157 // char s_gc_thread_stack[CYGNUM_JFFS2_GC_THREAD_STACK_SIZE];
158 //#else
159 // char s_gc_thread_stack[CYGNUM_HAL_STACK_SIZE_MINIMUM];
160 //#endif
161 // cyg_mtab_entry *mte;
162 //#endif
163
164 #ifdef CYGOPT_FS_JFFS2_GCTHREAD
165 struct rt_mutex s_lock; // Lock the inode cache
166 struct rt_event s_gc_thread_flags; // Communication with the gcthread
167 //void (*s_gc_thread_handle)(void *parameter);
168 struct rt_thread s_gc_thread;
169 //#if (CYGNUM_JFFS2_GC_THREAD_STACK_SIZE >= CYGNUM_HAL_STACK_SIZE_MINIMUM)
170 // char s_gc_thread_stack[CYGNUM_JFFS2_GC_THREAD_STACK_SIZE];
171 //#else
172 // char s_gc_thread_stack[CYGNUM_HAL_STACK_SIZE_MINIMUM];
173 //#endif
174 #define CYGNUM_JFFS2_GC_THREAD_STACK_SIZE (1024*4)
175 char s_gc_thread_stack[CYGNUM_JFFS2_GC_THREAD_STACK_SIZE];
176
177 cyg_mtab_entry *mte;
178 #endif
179
180 };
181
182 #define sleep_on_spinunlock(wq, sl) spin_unlock(sl)
183 #define EBADFD 32767
184
185 /* background.c */
186 #ifdef CYGOPT_FS_JFFS2_GCTHREAD
187 void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c);
188 void jffs2_start_garbage_collect_thread(struct jffs2_sb_info *c);
189 void jffs2_stop_garbage_collect_thread(struct jffs2_sb_info *c);
190 #else
jffs2_garbage_collect_trigger(struct jffs2_sb_info * c)191 static inline void jffs2_garbage_collect_trigger(struct jffs2_sb_info *c)
192 {
193 /* We don't have a GC thread in eCos (yet) */
194 }
195 #endif
196
197 /* fs-ecos.c */
198 struct _inode *jffs2_new_inode (struct _inode *dir_i, int mode, struct jffs2_raw_inode *ri);
199 struct _inode *jffs2_iget(struct super_block *sb, cyg_uint32 ino);
200 void jffs2_iput(struct _inode * i);
201 void jffs2_gc_release_inode(struct jffs2_sb_info *c, struct jffs2_inode_info *f);
202 struct jffs2_inode_info *jffs2_gc_fetch_inode(struct jffs2_sb_info *c, int inum, int nlink);
203 unsigned char *jffs2_gc_fetch_page(struct jffs2_sb_info *c, struct jffs2_inode_info *f,
204 unsigned long offset, unsigned long *priv);
205 void jffs2_gc_release_page(struct jffs2_sb_info *c, unsigned char *pg, unsigned long *priv);
206
207 /* Avoid polluting eCos namespace with names not starting in jffs2_ */
208 #define os_to_jffs2_mode(x) jffs2_from_os_mode(x)
209 uint32_t jffs2_from_os_mode(uint32_t osmode);
210 uint32_t jffs2_to_os_mode (uint32_t jmode);
211
212
213 /* flashio.c */
214 int jffs2_flash_read(struct jffs2_sb_info *c, cyg_uint32 read_buffer_offset,
215 const size_t size, size_t * return_size, unsigned char * write_buffer);
216 int jffs2_flash_write(struct jffs2_sb_info *c, cyg_uint32 write_buffer_offset,
217 const size_t size, size_t * return_size, unsigned char * read_buffer);
218 int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct iovec *vecs,
219 unsigned long count, loff_t to, size_t *retlen);
220 int jffs2_flash_erase(struct jffs2_sb_info *c, struct jffs2_eraseblock *jeb);
221
222 // dir-ecos.c
223 struct _inode *jffs2_lookup(struct _inode *dir_i, const unsigned char *name, int namelen);
224 int jffs2_create(struct _inode *dir_i, const unsigned char *d_name, int mode, struct _inode **new_i);
225 int jffs2_mkdir (struct _inode *dir_i, const unsigned char *d_name, int mode);
226 int jffs2_link (struct _inode *old_d_inode, struct _inode *dir_i, const unsigned char *d_name);
227 int jffs2_unlink(struct _inode *dir_i, struct _inode *d_inode, const unsigned char *d_name);
228 int jffs2_rmdir (struct _inode *dir_i, struct _inode *d_inode, const unsigned char *d_name);
229 int jffs2_rename (struct _inode *old_dir_i, struct _inode *d_inode, const unsigned char *old_d_name,
230 struct _inode *new_dir_i, const unsigned char *new_d_name);
231
232 /* erase.c */
jffs2_erase_pending_trigger(struct jffs2_sb_info * c)233 static inline void jffs2_erase_pending_trigger(struct jffs2_sb_info *c)
234 { }
235
236 #ifndef CONFIG_JFFS2_FS_WRITEBUFFER
237 #define SECTOR_ADDR(x) ( ((unsigned long)(x) & ~(c->sector_size-1)) )
238 #define jffs2_can_mark_obsolete(c) (1)
239 #define jffs2_cleanmarker_oob(c) (0)
240 #define jffs2_write_nand_cleanmarker(c,jeb) (-EIO)
241
242 #define jffs2_flush_wbuf_pad(c) (c=c)
243 #define jffs2_flush_wbuf_gc(c, i) ({ (void)(c), (void) i, 0; })
244 #define jffs2_nand_read_failcnt(c,jeb) do { ; } while(0)
245 #define jffs2_write_nand_badblock(c,jeb,p) (0)
246 #define jffs2_flash_setup(c) (0)
247 #define jffs2_nand_flash_cleanup(c) do {} while(0)
248 #define jffs2_wbuf_dirty(c) (0)
249 #define jffs2_flash_writev(a,b,c,d,e,f) jffs2_flash_direct_writev(a,b,c,d,e)
250 #define jffs2_wbuf_timeout NULL
251 #define jffs2_wbuf_process NULL
252 #define jffs2_nor_ecc(c) (0)
253 #else
254 #error no nand yet
255 #endif
256
257 #ifndef BUG_ON
258 #define BUG_ON(x) do { if (unlikely(x)) BUG(); } while(0)
259 #endif
260
261 #define __init
262
263 #endif /* __JFFS2_OS_ECOS_H__ */
264