Remove lwIP 1.3.2 and yaffs2 from RT-Thread Platform.

3 files changed, 0 insertions, 1458 deletions

diff --git a/components/dfs/filesystems/yaffs2/fixwarning.diff b/components/dfs/filesystems/yaffs2/fixwarning.diff
deleted file mode 100644
index d0f9304924..0000000000
--- a/components/dfs/filesystems/yaffs2/fixwarning.diff
+++ /dev/null
@@ -1,398 +0,0 @@
-diff --git a/dfs_yaffs2.c b/dfs_yaffs2.c
-index 4b056ae..e63d5d4 100644
---- a/dfs_yaffs2.c
-+++ b/dfs_yaffs2.c
-@@ -39,7 +39,6 @@ static int dfs_yaffs_mount(struct dfs_filesystem* fs,
- 				    const void* data)
- {
- 	unsigned index;
--	ynandif_Geometry *g;
- 
- 	/*1. find a empty entry in partition table */
- 	for (index = 0; index < NAND_DEVICE_PART_MAX ; index ++)
-diff --git a/yaffs/direct/yaffsfs.c b/yaffs/direct/yaffsfs.c
-index 17fc502..1f47ea7 100644
---- a/yaffs/direct/yaffsfs.c
-+++ b/yaffs/direct/yaffsfs.c
-@@ -1367,7 +1367,7 @@ off_t yaffs_lseek(int handle, off_t offset, int whence)
- 			if(offset >= 0)
- 				pos = offset;
- 		} else if(whence == SEEK_CUR) {
--			if( (fd->position + offset) >= 0)
-+			if( ((int)fd->position + offset) >= 0)
- 				pos = (fd->position + offset);
- 		} else if(whence == SEEK_END) {
- 			fSize = yaffs_get_obj_length(obj);
-diff --git a/yaffs/direct/yportenv.h b/yaffs/direct/yportenv.h
-index f693c16..ac0a737 100644
---- a/yaffs/direct/yportenv.h
-+++ b/yaffs/direct/yportenv.h
-@@ -45,7 +45,7 @@
- 	#endif
- 	
- 	#ifndef loff_t
--	typedef unsigned long loff_t;
-+	typedef long loff_t;
- 	#endif
- 	
- 	#ifndef dev_t
-@@ -66,7 +66,7 @@
- #elif defined (__GNUC__) && !defined(__CC_ARM)
- 
- 	#ifndef loff_t
--	typedef unsigned long loff_t;
-+	typedef long loff_t;
- 	#endif
- 
- 	#ifndef dev_t
-diff --git a/yaffs/yaffs_guts.c b/yaffs/yaffs_guts.c
-index d72aa5b..08db8c8 100644
---- a/yaffs/yaffs_guts.c
-+++ b/yaffs/yaffs_guts.c
-@@ -280,7 +280,7 @@ static void yaffs_handle_chunk_wr_error(struct yaffs_dev *dev, int nand_chunk,
- 
- static inline int yaffs_hash_fn(int n)
- {
--	n = abs(n);
-+	n = n > 0 ? n : -n;
- 	return n % YAFFS_NOBJECT_BUCKETS;
- }
- 
-@@ -319,9 +319,9 @@ static int yaffs_check_chunk_erased(struct yaffs_dev *dev, int nand_chunk)
- 	int retval = YAFFS_OK;
- 	u8 *data = yaffs_get_temp_buffer(dev);
- 	struct yaffs_ext_tags tags;
--	int result;
- 
--	result = yaffs_rd_chunk_tags_nand(dev, nand_chunk, data, &tags);
-+
-+	yaffs_rd_chunk_tags_nand(dev, nand_chunk, data, &tags);
- 
- 	if (tags.ecc_result > YAFFS_ECC_RESULT_NO_ERROR)
- 		retval = YAFFS_FAIL;
-@@ -347,9 +347,9 @@ static int yaffs_verify_chunk_written(struct yaffs_dev *dev,
- 	int retval = YAFFS_OK;
- 	struct yaffs_ext_tags temp_tags;
- 	u8 *buffer = yaffs_get_temp_buffer(dev);
--	int result;
- 
--	result = yaffs_rd_chunk_tags_nand(dev, nand_chunk, buffer, &temp_tags);
-+
-+	yaffs_rd_chunk_tags_nand(dev, nand_chunk, buffer, &temp_tags);
- 	if (memcmp(buffer, data, dev->data_bytes_per_chunk) ||
- 	    temp_tags.obj_id != tags->obj_id ||
- 	    temp_tags.chunk_id != tags->chunk_id ||
-@@ -1478,7 +1478,7 @@ static struct yaffs_cache *yaffs_grab_chunk_cache(struct yaffs_dev *dev)
- 	struct yaffs_obj *the_obj;
- 	int usage;
- 	int i;
--	int pushout;
-+	/* int pushout; */
- 
- 	if (dev->param.n_caches < 1)
- 		return NULL;
-@@ -1499,7 +1499,7 @@ static struct yaffs_cache *yaffs_grab_chunk_cache(struct yaffs_dev *dev)
- 		the_obj = dev->cache[0].object;
- 		usage = -1;
- 		cache = NULL;
--		pushout = -1;
-+		/* pushout = -1; */
- 
- 		for (i = 0; i < dev->param.n_caches; i++) {
- 			if (dev->cache[i].object &&
-@@ -1509,7 +1509,7 @@ static struct yaffs_cache *yaffs_grab_chunk_cache(struct yaffs_dev *dev)
- 				usage = dev->cache[i].last_use;
- 				the_obj = dev->cache[i].object;
- 				cache = &dev->cache[i];
--				pushout = i;
-+				/* pushout = i; */
- 			}
- 		}
- 
-@@ -3167,7 +3167,7 @@ static void yaffs_check_obj_details_loaded(struct yaffs_obj *in)
- 	struct yaffs_obj_hdr *oh;
- 	struct yaffs_dev *dev;
- 	struct yaffs_ext_tags tags;
--	int result;
-+
- 	int alloc_failed = 0;
- 
- 	if (!in || !in->lazy_loaded || in->hdr_chunk < 1)
-@@ -3177,7 +3177,7 @@ static void yaffs_check_obj_details_loaded(struct yaffs_obj *in)
- 	in->lazy_loaded = 0;
- 	buf = yaffs_get_temp_buffer(dev);
- 
--	result = yaffs_rd_chunk_tags_nand(dev, in->hdr_chunk, buf, &tags);
-+	yaffs_rd_chunk_tags_nand(dev, in->hdr_chunk, buf, &tags);
- 	oh = (struct yaffs_obj_hdr *)buf;
- 
- 	in->yst_mode = oh->yst_mode;
-@@ -3189,6 +3189,7 @@ static void yaffs_check_obj_details_loaded(struct yaffs_obj *in)
- 		    yaffs_clone_str(oh->alias);
- 		if (!in->variant.symlink_variant.alias)
- 			alloc_failed = 1;	/* Not returned */
-+		alloc_failed = alloc_failed;
- 	}
- 	yaffs_release_temp_buffer(dev, buf);
- }
-@@ -3274,7 +3275,7 @@ int yaffs_update_oh(struct yaffs_obj *in, const YCHAR *name, int force,
- 	struct yaffs_dev *dev = in->my_dev;
- 	int prev_chunk_id;
- 	int ret_val = 0;
--	int result = 0;
-+
- 	int new_chunk_id;
- 	struct yaffs_ext_tags new_tags;
- 	struct yaffs_ext_tags old_tags;
-@@ -3297,7 +3298,7 @@ int yaffs_update_oh(struct yaffs_obj *in, const YCHAR *name, int force,
- 	prev_chunk_id = in->hdr_chunk;
- 
- 	if (prev_chunk_id > 0) {
--		result = yaffs_rd_chunk_tags_nand(dev, prev_chunk_id,
-+		yaffs_rd_chunk_tags_nand(dev, prev_chunk_id,
- 						  buffer, &old_tags);
- 
- 		yaffs_verify_oh(in, oh, &old_tags, 0);
-@@ -3921,7 +3922,7 @@ int yaffs_del_obj(struct yaffs_obj *obj)
- 			list_del_init(&obj->variant.dir_variant.dirty);
- 		}
- 		return yaffs_del_dir(obj);
--		break;
-+		//break;
- 	case YAFFS_OBJECT_TYPE_SYMLINK:
- 		ret_val = yaffs_del_symlink(obj);
- 		break;
-@@ -3993,17 +3994,17 @@ static int yaffs_unlink_worker(struct yaffs_obj *obj)
- 		switch (obj->variant_type) {
- 		case YAFFS_OBJECT_TYPE_FILE:
- 			return yaffs_del_file(obj);
--			break;
-+			//break;
- 		case YAFFS_OBJECT_TYPE_DIRECTORY:
- 			list_del_init(&obj->variant.dir_variant.dirty);
- 			return yaffs_del_dir(obj);
--			break;
-+			//break;
- 		case YAFFS_OBJECT_TYPE_SYMLINK:
- 			return yaffs_del_symlink(obj);
--			break;
-+			//break;
- 		case YAFFS_OBJECT_TYPE_SPECIAL:
- 			return yaffs_generic_obj_del(obj);
--			break;
-+			//break;
- 		case YAFFS_OBJECT_TYPE_HARDLINK:
- 		case YAFFS_OBJECT_TYPE_UNKNOWN:
- 		default:
-@@ -4421,7 +4422,7 @@ int yaffs_get_obj_name(struct yaffs_obj *obj, YCHAR *name, int buffer_size)
- 	} else if (obj->short_name[0]) {
- 		strcpy(name, obj->short_name);
- 	} else if (obj->hdr_chunk > 0) {
--		int result;
-+
- 		u8 *buffer = yaffs_get_temp_buffer(obj->my_dev);
- 
- 		struct yaffs_obj_hdr *oh = (struct yaffs_obj_hdr *)buffer;
-@@ -4429,7 +4430,7 @@ int yaffs_get_obj_name(struct yaffs_obj *obj, YCHAR *name, int buffer_size)
- 		memset(buffer, 0, obj->my_dev->data_bytes_per_chunk);
- 
- 		if (obj->hdr_chunk > 0) {
--			result = yaffs_rd_chunk_tags_nand(obj->my_dev,
-+			yaffs_rd_chunk_tags_nand(obj->my_dev,
- 							  obj->hdr_chunk,
- 							  buffer, NULL);
- 		}
-@@ -4490,16 +4491,16 @@ unsigned yaffs_get_obj_type(struct yaffs_obj *obj)
- 	switch (obj->variant_type) {
- 	case YAFFS_OBJECT_TYPE_FILE:
- 		return DT_REG;
--		break;
-+		//break;
- 	case YAFFS_OBJECT_TYPE_DIRECTORY:
- 		return DT_DIR;
--		break;
-+		//break;
- 	case YAFFS_OBJECT_TYPE_SYMLINK:
- 		return DT_LNK;
--		break;
-+		//break;
- 	case YAFFS_OBJECT_TYPE_HARDLINK:
- 		return DT_REG;
--		break;
-+		//break;
- 	case YAFFS_OBJECT_TYPE_SPECIAL:
- 		if (S_ISFIFO(obj->yst_mode))
- 			return DT_FIFO;
-@@ -4510,10 +4511,10 @@ unsigned yaffs_get_obj_type(struct yaffs_obj *obj)
- 		if (S_ISSOCK(obj->yst_mode))
- 			return DT_SOCK;
- 		return DT_REG;
--		break;
-+		//break;
- 	default:
- 		return DT_REG;
--		break;
-+		//break;
- 	}
- }
- 
-@@ -4837,7 +4838,7 @@ int yaffs_guts_initialise(struct yaffs_dev *dev)
- 				dev->n_erased_blocks = 0;
- 				dev->n_free_chunks = 0;
- 				dev->alloc_block = -1;
--				dev->alloc_page = -1;
-+				dev->alloc_page = (u32)(-1);
- 				dev->n_deleted_files = 0;
- 				dev->n_unlinked_files = 0;
- 				dev->n_bg_deletions = 0;
-diff --git a/yaffs/yaffs_packedtags2.c b/yaffs/yaffs_packedtags2.c
-index 820bc41..9306623 100644
---- a/yaffs/yaffs_packedtags2.c
-+++ b/yaffs/yaffs_packedtags2.c
-@@ -35,7 +35,7 @@
- 
- /* Also, the top 4 bits of the object Id are set to the object type. */
- #define EXTRA_OBJECT_TYPE_SHIFT (28)
--#define EXTRA_OBJECT_TYPE_MASK  ((0x0f) << EXTRA_OBJECT_TYPE_SHIFT)
-+#define EXTRA_OBJECT_TYPE_MASK  ((0x0fUL) << EXTRA_OBJECT_TYPE_SHIFT)
- 
- static void yaffs_dump_packed_tags2_tags_only(
- 				const struct yaffs_packed_tags2_tags_only *ptt)
-@@ -129,7 +129,7 @@ void yaffs_unpack_tags2_tags_only(struct yaffs_ext_tags *t,
- 		t->extra_parent_id = ptt->chunk_id & (~(ALL_EXTRA_FLAGS));
- 		t->extra_is_shrink = ptt->chunk_id & EXTRA_SHRINK_FLAG ? 1 : 0;
- 		t->extra_shadows = ptt->chunk_id & EXTRA_SHADOWS_FLAG ? 1 : 0;
--		t->extra_obj_type = ptt->obj_id >> EXTRA_OBJECT_TYPE_SHIFT;
-+		t->extra_obj_type = (enum yaffs_obj_type)(ptt->obj_id >> EXTRA_OBJECT_TYPE_SHIFT);
- 		t->obj_id &= ~EXTRA_OBJECT_TYPE_MASK;
- 
- 		if (t->extra_obj_type == YAFFS_OBJECT_TYPE_HARDLINK)
-diff --git a/yaffs/yaffs_verify.c b/yaffs/yaffs_verify.c
-index b3e540d..1758125 100644
---- a/yaffs/yaffs_verify.c
-+++ b/yaffs/yaffs_verify.c
-@@ -223,7 +223,7 @@ void yaffs_verify_oh(struct yaffs_obj *obj, struct yaffs_obj_hdr *oh,
- void yaffs_verify_file(struct yaffs_obj *obj)
- {
- 	int required_depth;
--	int actual_depth;
-+	//int actual_depth;
- 	u32 last_chunk;
- 	u32 the_chunk;
- 	u32 x;
-@@ -252,7 +252,7 @@ void yaffs_verify_file(struct yaffs_obj *obj)
- 		required_depth++;
- 	}
- 
--	actual_depth = obj->variant.file_variant.top_level;
-+	//actual_depth = obj->variant.file_variant.top_level;
- 
- 	/* Check that the chunks in the tnode tree are all correct.
- 	 * We do this by scanning through the tnode tree and
-diff --git a/yaffs/yaffs_yaffs1.c b/yaffs/yaffs_yaffs1.c
-index da6a40f..8e7f4b2 100644
---- a/yaffs/yaffs_yaffs1.c
-+++ b/yaffs/yaffs_yaffs1.c
-@@ -23,7 +23,7 @@ int yaffs1_scan(struct yaffs_dev *dev)
- {
- 	struct yaffs_ext_tags tags;
- 	int blk;
--	int result;
-+	//int result;
- 	int chunk;
- 	int c;
- 	int deleted;
-@@ -84,7 +84,7 @@ int yaffs1_scan(struct yaffs_dev *dev)
- 		cond_resched();
- 
- 		bi = yaffs_get_block_info(dev, blk);
--		state = bi->block_state;
-+		state = (enum yaffs_block_state)(bi->block_state);
- 
- 		deleted = 0;
- 
-@@ -95,7 +95,7 @@ int yaffs1_scan(struct yaffs_dev *dev)
- 			/* Read the tags and decide what to do */
- 			chunk = blk * dev->param.chunks_per_block + c;
- 
--			result = yaffs_rd_chunk_tags_nand(dev, chunk, NULL,
-+			yaffs_rd_chunk_tags_nand(dev, chunk, NULL,
- 							  &tags);
- 
- 			/* Let's have a good look at this chunk... */
-@@ -181,7 +181,7 @@ int yaffs1_scan(struct yaffs_dev *dev)
- 				yaffs_set_chunk_bit(dev, blk, c);
- 				bi->pages_in_use++;
- 
--				result = yaffs_rd_chunk_tags_nand(dev, chunk,
-+				yaffs_rd_chunk_tags_nand(dev, chunk,
- 								  chunk_data,
- 								  NULL);
- 
-diff --git a/yaffs/yaffs_yaffs2.c b/yaffs/yaffs_yaffs2.c
-index 5761e96..69acd20 100644
---- a/yaffs/yaffs_yaffs2.c
-+++ b/yaffs/yaffs_yaffs2.c
-@@ -946,7 +946,7 @@ static inline int yaffs2_scan_chunk(struct yaffs_dev *dev,
- 	int is_shrink;
- 	int is_unlinked;
- 	struct yaffs_ext_tags tags;
--	int result;
-+	//int result;
- 	int alloc_failed = 0;
- 	int chunk = blk * dev->param.chunks_per_block + chunk_in_block;
- 	struct yaffs_file_var *file_var;
-@@ -954,12 +954,12 @@ static inline int yaffs2_scan_chunk(struct yaffs_dev *dev,
- 	struct yaffs_symlink_var *sl_var;
- 
- 	if (summary_available) {
--		result = yaffs_summary_fetch(dev, &tags, chunk_in_block);
-+		yaffs_summary_fetch(dev, &tags, chunk_in_block);
- 		tags.seq_number = bi->seq_number;
- 	}
- 
- 	if (!summary_available || tags.obj_id == 0) {
--		result = yaffs_rd_chunk_tags_nand(dev, chunk, NULL, &tags);
-+		yaffs_rd_chunk_tags_nand(dev, chunk, NULL, &tags);
- 		dev->tags_used++;
- 	} else {
- 		dev->summary_used++;
-@@ -1114,7 +1114,7 @@ static inline int yaffs2_scan_chunk(struct yaffs_dev *dev,
- 			 * invalid data until needed.
- 			 */
- 
--			result = yaffs_rd_chunk_tags_nand(dev,
-+			yaffs_rd_chunk_tags_nand(dev,
- 						  chunk,
- 						  chunk_data,
- 						  NULL);
-@@ -1349,7 +1349,7 @@ int yaffs2_scan_backwards(struct yaffs_dev *dev)
- 	int n_to_scan = 0;
- 	enum yaffs_block_state state;
- 	int c;
--	int deleted;
-+	//int deleted;
- 	LIST_HEAD(hard_list);
- 	struct yaffs_block_info *bi;
- 	u32 seq_number;
-@@ -1467,7 +1467,7 @@ int yaffs2_scan_backwards(struct yaffs_dev *dev)
- 		/* get the block to scan in the correct order */
- 		blk = block_index[block_iter].block;
- 		bi = yaffs_get_block_info(dev, blk);
--		deleted = 0;
-+		//deleted = 0;
- 
- 		summary_available = yaffs_summary_read(dev, dev->sum_tags, blk);
- 
-diff --git a/yaffs_osglue.c b/yaffs_osglue.c
-index 2c34f99..4f2e5db 100644
---- a/yaffs_osglue.c
-+++ b/yaffs_osglue.c
-@@ -58,7 +58,6 @@ void yaffsfs_LockInit(void)
- #else
- 
- static rt_mutex_t mutex = RT_NULL;
--static rt_sem_t sem = RT_NULL;
- void yaffsfs_Lock(void)
- {
- 	rt_mutex_take(mutex, RT_WAITING_FOREVER);
diff --git a/components/dfs/filesystems/yaffs2/readme.txt b/components/dfs/filesystems/yaffs2/readme.txt
deleted file mode 100644
index e6b8d3b976..0000000000
--- a/components/dfs/filesystems/yaffs2/readme.txt
+++ /dev/null
@@ -1,46 +0,0 @@
-how to use yaffs under rt-thread.
-
-There are three steps.
-1. get yaffs tarball from official repo.
-   the repo of official repo is here.
-     http://www.aleph1.co.uk/gitweb?p=yaffs2.git;a=summary
-   then you should find the 2011-6-28's snapshot, download the tarball
-     http://www.aleph1.co.uk/gitweb?p=yaffs2.git;a=snapshot;h=2df51cdb98e799c4d10b4cc7dd7e8858aa79e7d8;sf=tgz
-  
-   decompress the yaffs.tar.gz to rt-thread\components\dfs\filesystems\yaffs2\yaffs
-
-2. patch yaffs.diff    
-    open an terminal.
-    (1) on windows
-       open cmd command prompt, then use [cd] command to come current path
-       for example 
-         F:\Project\svn\rt-thread\components\dfs\filesystems\yaffs2>
-       then type command 
-         patch -p1 < yaffs.diff
-
-       you will get some log information as followings 
-         F:\Project\svn\rt-thread\components\dfs\filesystems\yaffs2>patch -p1 < yaffs.diff
-         patching file `dfs_yaffs2.c'
-         patching file `yaffs/direct/yaffs_list.h'
-         patching file `yaffs/direct/yaffs_nandif.c'
-         patching file `yaffs/direct/ydirectenv.h'
-         patching file `yaffs/direct/yportenv.h'
-         patching file `yaffs_nandcfg.c'
-         patching file `yaffs_osglue.c'
-
-       now you can delete yaffs.diff
-       there is another patch file, as the name shows, it is to fix compile
-       warning, so it is not necessary. If you want, you can use the
-       following command.
-         patch -p1 < fixwarning.diff
-
-    (2) on linux
-       Help yourself. Since you have use linux as your os, I believe in you. 
-
-3.add nand driver and compile 
-    In order to use yaffs, you should provide a nand driver which is needed
-    by yaffs. There is an example file in rt-thread\components\dfs\filesystems\uffs\nand.
-    you should modify yaffs_nandcfg.c according to your nand driver.
- then you can use scons or IDE like MDK or IAR to compile.
-
- enjoy !
diff --git a/components/dfs/filesystems/yaffs2/yaffs.diff b/components/dfs/filesystems/yaffs2/yaffs.diff
deleted file mode 100644
index e487ac6a6d..0000000000
--- a/components/dfs/filesystems/yaffs2/yaffs.diff
+++ /dev/null
@@ -1,1014 +0,0 @@
-diff --git a/dfs_yaffs2.c b/dfs_yaffs2.c
-new file mode 100644
-index 0000000..4b056ae
---- /dev/null
-+++ b/dfs_yaffs2.c
-@@ -0,0 +1,405 @@
-+/*
-+ * File      : rtthread.h
-+ * This file is part of RT-Thread RTOS
-+ * COPYRIGHT (C) 2006-2011, RT-Thread Development Team
-+ *
-+ * The license and distribution terms for this file may be
-+ * found in the file LICENSE in this distribution or at
-+ * http://www.rt-thread.org/license/LICENSE.
-+ *
-+ * Change Logs:
-+ * Date           Author       Notes
-+ * 2011-10-22     prife        the first version
-+ * 2012-04-14     prife        use mtd device interface
-+*/
-+#include <rtthread.h>
-+#include <rtdevice.h>
-+
-+#include "yaffsfs.h"
-+#include "yaffs_nandif.h"
-+
-+#include <dfs_fs.h>
-+#include <dfs_def.h>
-+
-+#define YAFFS_FILE_PATH_MAX	             256 /* the longest file path */
-+
-+#define NAND_DEVICE_PART_MAX   4  /* the max partitions on a nand deivce*/
-+struct device_part
-+{
-+	struct rt_mtd_nand_device *dev;
-+	ynandif_Geometry g;
-+};
-+static struct device_part nand_part[NAND_DEVICE_PART_MAX] = {0};
-+
-+extern int yaffs_start(const char * mountpath, ynandif_Geometry * g);
-+extern void yaffs_config(ynandif_Geometry * g, struct rt_mtd_nand_device * dev);
-+
-+static int dfs_yaffs_mount(struct dfs_filesystem* fs,
-+                    unsigned long rwflag, 
-+				    const void* data)
-+{
-+	unsigned index;
-+	ynandif_Geometry *g;
-+
-+	/*1. find a empty entry in partition table */
-+	for (index = 0; index < NAND_DEVICE_PART_MAX ; index ++)
-+	{
-+		if (nand_part[index].dev == RT_NULL)
-+			break;
-+	}
-+	if (index == NAND_DEVICE_PART_MAX)
-+		return -DFS_STATUS_ENOSPC;
-+
-+	/*2. fill nand_part*/
-+	nand_part[index].dev = RT_MTD_NAND_DEVICE(fs->dev_id);
-+	yaffs_config(&nand_part[index].g, RT_MTD_NAND_DEVICE(fs->dev_id));
-+
-+	/*3. start up yaffs2 */
-+	yaffs_start(fs->path, &nand_part[index].g);
-+	if (yaffs_mount(fs->path) < 0)
-+	{	
-+		return yaffsfs_GetLastError();
-+	}
-+	return 0;
-+}
-+
-+static int dfs_yaffs_unmount(struct dfs_filesystem* fs)
-+{
-+	unsigned index;
-+	if (yaffs_unmount(fs->path) < 0)
-+		return yaffsfs_GetLastError();
-+
-+	/* find device index, then umount it */
-+	for (index = 0; index < NAND_DEVICE_PART_MAX; index++)
-+	{
-+		if (nand_part[index].dev == RT_MTD_NAND_DEVICE(fs->dev_id))
-+		{
-+			nand_part[index].dev = RT_NULL;
-+			return DFS_STATUS_OK;
-+		}
-+	}
-+	return -DFS_STATUS_ENOENT;
-+}
-+
-+static int dfs_yaffs_mkfs(const char* device_name)
-+{
-+	/* just erase all blocks on this nand partition */
-+	return -DFS_STATUS_ENOSYS; 
-+}
-+
-+static int dfs_yaffs_statfs(struct dfs_filesystem* fs,
-+                     struct statfs *buf)
-+{
-+	struct rt_mtd_nand_device * mtd = RT_MTD_NAND_DEVICE(fs->dev_id);
-+
-+	RT_ASSERT(mtd != RT_NULL);
-+
-+	buf->f_bsize = mtd->page_size;
-+	buf->f_blocks = (mtd->block_size)/(mtd->page_size)*
-+	                (mtd->block_start - mtd->block_end + 1);
-+	buf->f_bfree = yaffs_freespace(fs->path) / mtd->page_size;
-+
-+	return 0;
-+}
-+
-+static int dfs_yaffs_open(struct dfs_fd* file)
-+{
-+	int fd;
-+	int oflag;
-+	int result;
-+		
-+	oflag = file->flags;
-+	if (oflag & DFS_O_DIRECTORY) /* operations about dir */
-+	{
-+		yaffs_DIR * dir;
-+		if (oflag & DFS_O_CREAT) /* create a dir*/
-+		{	
-+			result = yaffs_mkdir(file->path, 0x777); /* the second args not supported by rtt */
-+			if (result < 0)
-+				return yaffsfs_GetLastError();
-+		}
-+		/* open dir */
-+		dir = yaffs_opendir(file->path);
-+		if (dir == RT_NULL)
-+			return yaffsfs_GetLastError();			
-+		/* save this pointer,will used by dfs_yaffs_getdents*/
-+		file->data = dir;
-+		return 0;
-+	} 
-+	/* regular file operations */
-+	fd = yaffs_open(file->path, oflag, S_IREAD | S_IWRITE); 	
-+	if (fd < 0)
-+		return yaffsfs_GetLastError();
-+
-+	 /* save this pointer, it will be used when calling read()��write(), 
-+	 flush(), lessk(), and will be free when calling close()*/
-+	file->data = (void *)fd;
-+	file->pos  = yaffs_lseek(fd,0,SEEK_CUR); 
-+	file->size = yaffs_lseek(fd,0,SEEK_END);
-+	yaffs_lseek(fd, file->pos, SEEK_SET);
-+
-+	if (oflag & DFS_O_APPEND)
-+	{
-+		file->pos = file->size;	
-+		file->size = yaffs_lseek(fd,0,SEEK_END);
-+	}
-+	return 0; 
-+}
-+
-+static int dfs_yaffs_close(struct dfs_fd* file)
-+{
-+	int oflag;
-+	int fd;
-+	
-+	oflag = file->flags;
-+	if (oflag & DFS_O_DIRECTORY) /* operations about dir */
-+	{
-+		if (yaffs_closedir((yaffs_DIR *)(file->data)) < 0)
-+			return yaffsfs_GetLastError();	
-+		return 0;
-+	}
-+	/* regular file operations */
-+	fd = (int)(file->data);
-+
-+	if (yaffs_close(fd) == 0)
-+		return 0;
-+
-+	/* release memory */
-+	return yaffsfs_GetLastError();
-+}
-+
-+static int dfs_yaffs_ioctl(struct dfs_fd* file, int cmd,	void* args)
-+{
-+	return -DFS_STATUS_ENOSYS;
-+}
-+
-+static int dfs_yaffs_read(struct dfs_fd* file, void* buf, rt_size_t len)
-+{
-+	int fd;
-+	int char_read;
-+	
-+	fd = (int)(file->data);
-+	char_read = yaffs_read(fd, buf, len);
-+	if (char_read < 0) 
-+		return yaffsfs_GetLastError();
-+	
-+	/* update position */
-+	file->pos = yaffs_lseek(fd, 0, SEEK_CUR);
-+	return char_read;
-+}
-+
-+static int dfs_yaffs_write(struct dfs_fd* file,
-+                    const void* buf, 
-+					rt_size_t len)
-+{
-+	int fd;
-+	int char_write;
-+	
-+	fd = (int)(file->data);
-+	
-+	char_write = yaffs_write(fd, buf, len);
-+	if (char_write < 0) 
-+		return yaffsfs_GetLastError();
-+	
-+	/* update position */
-+	file->pos = yaffs_lseek(fd, 0, SEEK_CUR);
-+	return char_write;
-+}
-+
-+static int dfs_yaffs_flush(struct dfs_fd* file)
-+{
-+	int fd;
-+	int result;
-+	
-+	fd = (int)(file->data);
-+
-+	result = yaffs_flush(fd);
-+	if (result < 0)
-+		return yaffsfs_GetLastError();
-+	return 0;
-+}
-+
-+static int dfs_yaffs_lseek(struct dfs_fd* file,
-+                    rt_off_t offset)
-+{
-+	int fd;
-+	int result;
-+	
-+	fd = (int)(file->data);
-+
-+	/* set offset as current offset */
-+	result = yaffs_lseek(fd, offset, SEEK_SET);
-+	if (result < 0)
-+		return yaffsfs_GetLastError();
-+	return result;
-+}
-+
-+/* return the size of  struct dirent*/
-+static int dfs_yaffs_getdents(struct dfs_fd* file,
-+                       struct dirent* dirp, 
-+					   rt_uint32_t count)
-+{
-+	rt_uint32_t index;
-+	char * file_path;	
-+	struct dirent* d;
-+	yaffs_DIR* dir;
-+	struct yaffs_dirent * yaffs_d;	
-+		
-+	dir = (yaffs_DIR*)(file->data);
-+	RT_ASSERT(dir != RT_NULL);
-+
-+	/* make integer count, usually count is 1 */
-+	count = (count / sizeof(struct dirent)) * sizeof(struct dirent);
-+	if (count == 0) return -DFS_STATUS_EINVAL;
-+
-+	/* allocate file name */
-+	file_path = rt_malloc(YAFFS_FILE_PATH_MAX);
-+	if (file_path == RT_NULL)
-+		return -DFS_STATUS_ENOMEM;
-+	
-+	index = 0;
-+	/* usually, the while loop should only be looped only once! */
-+	while (1)
-+	{
-+		struct yaffs_stat s; 
-+		
-+		d = dirp + index;
-+
-+		yaffs_d = yaffs_readdir(dir);
-+		if (yaffs_d == RT_NULL)
-+		{
-+			if (yaffsfs_GetLastError() == EBADF)
-+				return -DFS_STATUS_EBADF;
-+
-+			rt_free(file_path);
-+			return -1; /* a general error */
-+		}
-+		
-+		rt_snprintf(file_path, YAFFS_FILE_PATH_MAX, "%s/%s", file->path, yaffs_d->d_name);
-+
-+		yaffs_lstat(file_path, &s); 	 
-+		switch(s.st_mode & S_IFMT) 
-+		{ 
-+		case S_IFREG: d->d_type = DFS_DT_REG; break; 
-+		
-+		case S_IFDIR: d->d_type = DFS_DT_DIR; break; 
-+		
-+		case S_IFLNK:
-+		default: d->d_type = DFS_DT_UNKNOWN; break; 
-+		} 	
-+
-+		/* write the rest feilds of struct dirent* dirp  */
-+		d->d_namlen = rt_strlen(yaffs_d->d_name);
-+		d->d_reclen = (rt_uint16_t)sizeof(struct dirent);
-+		rt_strncpy(d->d_name, yaffs_d->d_name, rt_strlen(yaffs_d->d_name) + 1);
-+		
-+		index ++;
-+		if (index * sizeof(struct dirent) >= count)
-+			break;
-+	}
-+
-+	/* free file name buf */
-+	rt_free(file_path);
-+	
-+	if (index == 0)
-+		return yaffsfs_GetLastError();
-+
-+	return index * sizeof(struct dirent);
-+}
-+
-+static int dfs_yaffs_unlink(struct dfs_filesystem* fs, const char* path)
-+{
-+	int result;
-+	struct yaffs_stat s;
-+
-+	/* judge file type, dir is to be delete by yaffs_rmdir, others by yaffs_unlink */
-+	if (yaffs_lstat(path, &s) < 0) 
-+	{
-+		return yaffsfs_GetLastError();
-+	}
-+	
-+	switch(s.st_mode & S_IFMT) 
-+	{ 
-+	case S_IFREG: 
-+		result = yaffs_unlink(path); 
-+		break; 	
-+	case S_IFDIR: 
-+		result = yaffs_rmdir(path);		
-+		break;
-+	default: 
-+		/* unknown file type */
-+		return -1;
-+	} 
-+	if (result < 0) 
-+		return yaffsfs_GetLastError();
-+	return 0;			
-+}
-+
-+static int dfs_yaffs_rename(struct dfs_filesystem* fs,
-+                     const char* oldpath,
-+					 const char* newpath)
-+{
-+	int result;
-+
-+	result = yaffs_rename(oldpath, newpath);
-+
-+	if (result < 0)
-+		return yaffsfs_GetLastError();
-+	return 0;
-+}
-+
-+static int dfs_yaffs_stat(struct dfs_filesystem* fs, const char *path, struct stat *st)
-+{
-+	int result;
-+	struct yaffs_stat s;
-+	struct rt_mtd_nand_device * mtd;
-+	
-+	result = yaffs_stat(path, &s);
-+	if (result < 0)
-+		return yaffsfs_GetLastError(); 
-+
-+	/* convert to dfs stat structure */
-+	st->st_dev  = 0;
-+	st->st_mode = s.st_mode;
-+	st->st_size = s.st_size;
-+	st->st_mtime = s.yst_mtime;
-+
-+	mtd = RT_MTD_NAND_DEVICE(fs->dev_id);
-+	st->st_blksize = mtd->page_size;
-+
-+	return 0;
-+}
-+
-+static const struct dfs_filesystem_operation dfs_yaffs_ops = 
-+{
-+	"yaffs2", /* file system type: yaffs2 */
-+#if RTTHREAD_VERSION >= 10100
-+	DFS_FS_FLAG_FULLPATH,
-+#else
-+#error "yaffs2 can only work with rtthread whose version should >= 1.01\n"
-+#endif
-+	dfs_yaffs_mount,
-+	dfs_yaffs_unmount,
-+	dfs_yaffs_mkfs,
-+	dfs_yaffs_statfs,
-+
-+	dfs_yaffs_open,
-+	dfs_yaffs_close,
-+	dfs_yaffs_ioctl,
-+	dfs_yaffs_read,
-+	dfs_yaffs_write,
-+	dfs_yaffs_flush,
-+	dfs_yaffs_lseek,
-+	dfs_yaffs_getdents,
-+	dfs_yaffs_unlink,
-+	dfs_yaffs_stat,
-+	dfs_yaffs_rename,
-+};
-+
-+int dfs_yaffs_init(void)
-+{
-+    /* register fatfs file system */
-+    dfs_register(&dfs_yaffs_ops);
-+
-+	return 0;
-+}
-diff --git a/yaffs/direct/yaffs_list.h b/yaffs/direct/yaffs_list.h
-index f1c5254..17044f5 100644
---- a/yaffs/direct/yaffs_list.h
-+++ b/yaffs/direct/yaffs_list.h
-@@ -39,7 +39,7 @@ struct list_head {
- 
- /* Initialise a static list */
- #define LIST_HEAD(name) \
--struct list_head name = { &(name), &(name)}
-+static struct list_head name = { &(name), &(name)}
- 
- 
- 
-diff --git a/yaffs/direct/yaffs_nandif.c b/yaffs/direct/yaffs_nandif.c
-index b93b55a..3fae80e 100644
---- a/yaffs/direct/yaffs_nandif.c
-+++ b/yaffs/direct/yaffs_nandif.c
-@@ -18,7 +18,6 @@
- #include "yaffs_nandif.h"
- #include "yaffs_packedtags2.h"
- 
--#include "yramsim.h"
- 
- #include "yaffs_trace.h"
- #include "yaffsfs.h"
-@@ -216,8 +215,8 @@ struct yaffs_dev *
- 	yaffs_add_dev_from_geometry(const YCHAR *name,
- 					const ynandif_Geometry *geometry)
- {
--	YCHAR *clonedName = malloc(sizeof(YCHAR) * (strnlen(name,YAFFS_MAX_NAME_LENGTH)+1));
--	struct yaffs_dev *dev = malloc(sizeof(struct yaffs_dev));
-+	YCHAR *clonedName = kmalloc(sizeof(YCHAR) * (strnlen(name,YAFFS_MAX_NAME_LENGTH)+1), GFP_NOFS);
-+	struct yaffs_dev *dev = kmalloc(sizeof(struct yaffs_dev), GFP_NOFS);
- 
- 	if(dev && clonedName){
- 		memset(dev,0,sizeof(struct yaffs_dev));
-@@ -242,16 +241,17 @@ struct yaffs_dev *
- 		dev->param.n_reserved_blocks	  = 5;
- 		dev->driver_context		  = (void *)geometry;
- 
-+		/* save rt_mtd_nand_device * dev*/
-+		dev->os_context		  = (void *)(geometry->privateData);
- 		yaffs_add_device(dev);
- 
- 		return dev;
- 	}
- 
- 	if(dev)
--		free(dev);
-+		kfree(dev);
- 	if(clonedName)
--		free(clonedName);
-+		kfree(clonedName);
- 
- 	return NULL;
- }
--
-diff --git a/yaffs/direct/ydirectenv.h b/yaffs/direct/ydirectenv.h
-index 7860b84..5add3ec 100644
---- a/yaffs/direct/ydirectenv.h
-+++ b/yaffs/direct/ydirectenv.h
-@@ -22,16 +22,13 @@
- 
- // Direct interface
- 
--#include "stdlib.h"
--#include "stdio.h"
-+#include <rtthread.h>
- #include "string.h"
-+
- #include "yaffs_osglue.h"
- #include "yaffs_hweight.h"
- 
--#include "assert.h"
--#define BUG() assert(0)
--//#define BUG() do { *((int *)0) =1;} while(0)
--
-+#define BUG() RT_ASSERT(0)
- 
- #define YCHAR char
- #define YUCHAR unsigned char
-@@ -47,30 +44,24 @@ void yaffs_qsort(void *aa, size_t n, size_t es,
-         
- #define YAFFS_PATH_DIVIDERS  "/"
- 
--#ifdef NO_inline
--#define inline
--#else
--#define inline __inline__
--#endif
--
--#define kmalloc(x,flags) yaffsfs_malloc(x)
-+#define GFP_NOFS  0
-+#define kmalloc(x, y) yaffsfs_malloc(x)
- #define kfree(x)   yaffsfs_free(x)
- #define vmalloc(x) yaffsfs_malloc(x)
--#define vfree(x) yaffsfs_free(x)
-+#define vfree(x)   yaffsfs_free(x)
-+#define printf     rt_kprintf
- 
- #define cond_resched()  do {} while(0)
- 
- #define yaffs_trace(msk, fmt, ...) do { \
- 	if(yaffs_trace_mask & (msk)) \
--		printf("yaffs: " fmt "\n", ##__VA_ARGS__); \
-+		rt_kprintf("yaffs: " fmt "\n", ##__VA_ARGS__); \
- } while(0)
- 
- 
- #define YAFFS_LOSTNFOUND_NAME		"lost+found"
- #define YAFFS_LOSTNFOUND_PREFIX		"obj"
- 
--#include "yaffscfg.h"
--
- #define Y_CURRENT_TIME yaffsfs_CurrentTime()
- #define Y_TIME_CONVERT(x) x
- 
-@@ -79,8 +70,6 @@ void yaffs_qsort(void *aa, size_t n, size_t es,
- 
- #include "yaffs_list.h"
- 
--#include "yaffsfs.h"
--
- #endif
- 
- 
-diff --git a/yaffs/direct/yportenv.h b/yaffs/direct/yportenv.h
-index 939cd3a..f693c16 100644
---- a/yaffs/direct/yportenv.h
-+++ b/yaffs/direct/yportenv.h
-@@ -17,36 +17,146 @@
- #ifndef __YPORTENV_H__
- #define __YPORTENV_H__
- 
-+#include <dfs_posix.h>
-+
-+#define CONFIG_YAFFS_DIRECT
-+#define CONFIG_YAFFS_PROVIDE_DEFS
-+#define CONFIG_YAFFSFS_PROVIDE_VALUES
-+
-+#ifdef NO_inline
-+	#define inline
-+#else
-+	#ifdef __CC_ARM  
-+	    #define inline   __inline
-+	#elif defined (__GNUC__)        		/* GNU GCC Compiler */
-+	    #define inline   __inline
-+	#else
-+		#error "Please set a macro inline with a valid args" 	
-+	#endif
-+#endif
-+
-+#if defined(__CC_ARM)
-+	#ifdef RT_USING_NEWLIB
-+		#error "error: when use armcc, please Don't USE NEWLIB!!!"
-+	#endif
-+	
-+	#ifndef off_t
-+	typedef long off_t;
-+	#endif
-+	
-+	#ifndef loff_t
-+	typedef unsigned long loff_t;
-+	#endif
-+	
-+	#ifndef dev_t
-+	typedef long dev_t;
-+	#endif
-+	
-+	#ifndef mode_t
-+	typedef int mode_t;
-+	#endif
-+
-+	/* just like strlen(3), but cap the number of bytes we count */
-+	rt_inline size_t strnlen(const char *s, size_t max) {
-+		register const char *p;
-+		for(p = s; *p && max--; ++p);
-+		return(p - s);
-+	}
-+
-+#elif defined (__GNUC__) && !defined(__CC_ARM)
-+
-+	#ifndef loff_t
-+	typedef unsigned long loff_t;
-+	#endif
-+
-+	#ifndef dev_t
-+	typedef long dev_t;
-+	#endif
-+#endif
- 
- /* Definition of types */
- typedef unsigned char u8;
- typedef unsigned short u16;
- typedef unsigned u32;
--
--
--#ifndef WIN32
--#include <sys/stat.h>
--#endif
--
-+ 
-+#ifndef S_ISDIR
-+	#ifndef _DEV_T_DEFINED
-+	typedef unsigned int _dev_t;            /* device code */
-+	#if     !__STDC__
-+	/* Non-ANSI name for compatibility */
-+	typedef unsigned int dev_t;
-+	#endif
-+	 
-+	#define _DEV_T_DEFINED
-+	#endif
-+
-+	#define __S_IFMT 0170000 /* These bits determine file type.  */
-+	/* File types.  */
-+	#define __S_IFDIR 0040000 /* Directory.  */
-+	#define __S_IFCHR 0020000 /* Character device.  */
-+	#define __S_IFBLK 0060000 /* Block device.  */
-+	#define __S_IFREG 0100000 /* Regular file.  */
-+	#define __S_IFIFO 0010000 /* FIFO.  */
-+	#define __S_IFLNK 0120000 /* Symbolic link.  */
-+	#define __S_IFSOCK 0140000 /* Socket.  */
-+	 
-+	/* Protection bits.  */
-+	#define __S_ISUID 04000 /* Set user ID on execution.  */
-+	#define __S_ISGID 02000 /* Set group ID on execution.  */
-+	#define __S_ISVTX 01000 /* Save swapped text after use (sticky).  */
-+	#define __S_IREAD 0400 /* Read by owner.  */
-+	#define __S_IWRITE 0200 /* Write by owner.  */
-+	#define __S_IEXEC 0100 /* Execute by owner.  */
-+	#define __S_ISTYPE(mode, mask) (((mode) & __S_IFMT) == (mask))
-+
-+	#define S_ISDIR(mode)  __S_ISTYPE((mode), __S_IFDIR)
-+	#define S_ISCHR(mode)  __S_ISTYPE((mode), __S_IFCHR)
-+	#define S_ISBLK(mode)  __S_ISTYPE((mode), __S_IFBLK)
-+	#define S_ISREG(mode)  __S_ISTYPE((mode), __S_IFREG)
-+	#define S_ISSOCK(mode) __S_ISTYPE((mode), __S_IFSOCK)
-+	#define S_ISFIFO(mode) __S_ISTYPE((mode), __S_IFSOCK)
-+	#define S_IRUSR __S_IREAD // Read by owner.  
-+	#define S_IWUSR __S_IWRITE // Write by owner. 
-+	#define S_IXUSR __S_IEXEC // Execute by owner. 
-+	#define S_IREAD S_IRUSR
-+	#define S_IWRITE S_IWUSR
-+	#define S_IEXEC S_IXUSR
-+	#define S_IFDIR __S_IFDIR
-+#endif 
- 
- #ifdef CONFIG_YAFFS_PROVIDE_DEFS
- /* File types */
- 
-+#ifndef DT_UNKNOWN
-+	#define DT_UNKNOWN	0
-+#endif
-+#ifndef	DT_FIFO
-+	#define DT_FIFO		1
-+#endif
- 
--#define DT_UNKNOWN	0
--#define DT_FIFO		1
--#define DT_CHR		2
--#define DT_DIR		4
--#define DT_BLK		6
--#define DT_REG		8
--#define DT_LNK		10
--#define DT_SOCK		12
--#define DT_WHT		14
--
-+#ifndef	DT_CHR
-+	#define DT_CHR		2
-+#endif
- 
--#ifndef WIN32
--#include <sys/stat.h>
-+#ifndef	DT_DIR
-+	#define DT_DIR		4
-+#endif
-+#ifndef	DT_BLK
-+	#define DT_BLK		6
-+#endif
-+#ifndef	DT_REG
-+	#define DT_REG		8
- #endif
-+#ifndef	DT_LNK
-+	#define DT_LNK		10
-+#endif
-+#ifndef	DT_SOCK
-+	#define DT_SOCK		12
-+#endif
-+#ifndef	 DT_WHT
-+	#define DT_WHT		14
-+#endif
-+
- 
- /*
-  * Attribute flags.
-@@ -75,7 +185,6 @@ struct iattr {
- #endif
- 
- 
--
- #if defined CONFIG_YAFFS_WINCE
- 
- #include "ywinceenv.h"
-@@ -267,9 +376,17 @@ struct iattr {
- #endif
- 
- #else
--#include <errno.h>
--#include <sys/stat.h>
--#include <fcntl.h>
-+//#include <errno.h>
-+//#include <sys/stat.h>
-+//#include <fcntl.h>
-+#ifndef XATTR_CREATE
-+#define XATTR_CREATE 1
-+#endif
-+
-+#ifndef XATTR_REPLACE
-+#define XATTR_REPLACE 2
-+#endif
-+
- #endif
- 
- #endif
-diff --git a/yaffs_nandcfg.c b/yaffs_nandcfg.c
-new file mode 100644
-index 0000000..099fa38
---- /dev/null
-+++ b/yaffs_nandcfg.c
-@@ -0,0 +1,149 @@
-+#include <rtthread.h>
-+#include <rtdevice.h>
-+#include <dfs_fs.h>
-+#include <dfs_def.h>
-+
-+#include "yaffsfs.h"
-+#include "yaffs_nandif.h"
-+#include "yaffs_trace.h"
-+
-+/*
-+ * RT-Thread Device Interface for yaffs
-+ */
-+static int nand_init(struct yaffs_dev *dev)
-+{
-+	return YAFFS_OK;
-+}
-+
-+static int nand_deinit(struct yaffs_dev *dev)
-+{
-+	return YAFFS_OK;
-+}
-+
-+/* if block is good, return YAFFS_OK, else return YAFFS_FAIL */
-+static int nand_checkblock(struct yaffs_dev *dev, unsigned block)
-+{
-+	rt_err_t res;
-+	res = rt_mtd_nand_check_block(RT_MTD_NAND_DEVICE(dev->os_context), block);
-+	return res == RT_EOK ? YAFFS_OK : YAFFS_FAIL;
-+}
-+static int nand_markbadblk(struct yaffs_dev *dev, unsigned block)
-+{
-+	rt_err_t res;
-+	res = rt_mtd_nand_mark_badblock(RT_MTD_NAND_DEVICE(dev->os_context), block);
-+	return res == RT_EOK ? YAFFS_OK : YAFFS_FAIL;
-+}
-+
-+static int nand_eraseblock(struct yaffs_dev *dev, unsigned block)
-+{
-+	int res;
-+	res = rt_mtd_nand_erase_block(RT_MTD_NAND_DEVICE(dev->os_context), block);
-+	return 	res == RT_EOK ? YAFFS_OK : YAFFS_FAIL;
-+}
-+
-+static int nand_readpage(
-+	struct yaffs_dev *dev,
-+    unsigned page,
-+    unsigned char *data, unsigned data_len, /* page data */
-+    unsigned char *spare, unsigned spare_len,/* page spare */
-+    int *ecc_status)
-+{
-+	int res;
-+	unsigned char spare_buf[64];
-+
-+	res = rt_mtd_nand_read(RT_MTD_NAND_DEVICE(dev->os_context),
-+	                   	   page, data, data_len, spare_buf, spare_len + 5);
-+	rt_memcpy(spare, spare_buf + 5, spare_len);
-+	if (res == 0)
-+		*ecc_status = 0;
-+	else if (res == -1)
-+		*ecc_status = 1;
-+	else
-+		*ecc_status = -1;
-+
-+	return YAFFS_OK;
-+}
-+
-+static int nand_writepage(
-+	struct yaffs_dev *dev,
-+	unsigned page,
-+	const unsigned char *data, unsigned data_len, /* page data */
-+    const unsigned char *spare, unsigned spare_len) /* page spare */
-+{
-+	int res;
-+	unsigned char spare_buf[64]; //not use malloc, this can be faster
-+	rt_memset(spare_buf, 0xFF, sizeof(spare_buf));
-+	rt_memcpy(spare_buf+5, spare, spare_len);
-+
-+	res = rt_mtd_nand_write(RT_MTD_NAND_DEVICE(dev->os_context),
-+						   page, data, data_len, spare_buf, spare_len + 5);
-+	if (res != RT_EOK)
-+		goto __error;
-+
-+	return YAFFS_OK;
-+
-+__error:
-+	return YAFFS_FAIL;
-+}
-+
-+
-+/*
-+ * yaffs2 configuration
-+ */
-+#define CONFIG_YAFFS_ECC_MODE     1 //1 use ecc, 0 no ecc
-+#define CONFIG_YAFFS_INBAND_TAGS  0 //1 use in band tags, 0-no in band tags
-+#define CONFIG_YAFFS_USE_YAFFS2   1 //1 yaffs2, 0-yaffs1
-+
-+void yaffs_config(ynandif_Geometry * g, struct rt_mtd_nand_device * dev)
-+{
-+	rt_memset(g,0,sizeof(ynandif_Geometry));
-+
-+	g->start_block   = dev->block_start;
-+	g->end_block     = dev->block_end;
-+	g->dataSize      = dev->page_size;
-+	g->spareSize     = dev->oob_size;
-+	g->pagesPerBlock = dev->block_size / dev->page_size;
-+
-+	g->hasECC        = CONFIG_YAFFS_ECC_MODE;
-+	g->inband_tags   = CONFIG_YAFFS_INBAND_TAGS;
-+	g->useYaffs2     = CONFIG_YAFFS_USE_YAFFS2;
-+
-+	g->privateData   = dev;//will be copy to dev->os_context.
-+
-+	g->initialise = nand_init;
-+	g->deinitialise = nand_deinit;
-+	g->readChunk = nand_readpage;
-+	g->writeChunk = nand_writepage;
-+	g->eraseBlock = nand_eraseblock;
-+	g->checkBlockOk = nand_checkblock;
-+	g->markBlockBad = nand_markbadblk;
-+}
-+
-+static struct yaffs_dev *ynand_CreatePart(const YCHAR *name, ynandif_Geometry * g)
-+{
-+	return yaffs_add_dev_from_geometry(name, g);
-+}
-+
-+/* configuration for yaffs's log */
-+unsigned yaffs_trace_mask =
-+
-+	YAFFS_TRACE_SCAN |
-+	YAFFS_TRACE_GC |
-+	YAFFS_TRACE_ERASE |
-+	YAFFS_TRACE_ERROR |
-+	YAFFS_TRACE_TRACING |
-+	YAFFS_TRACE_ALLOCATE |
-+	YAFFS_TRACE_BAD_BLOCKS |
-+	YAFFS_TRACE_VERIFY |
-+
-+	0;
-+
-+int yaffs_start(const char * mount_point, ynandif_Geometry * g)
-+{
-+	// Stuff to configure YAFFS
-+	// Stuff to initialise anything special (eg lock semaphore).
-+	yaffsfs_OSInitialisation();
-+	ynand_CreatePart(mount_point, g);
-+
-+	return 0;
-+}
-diff --git a/yaffs_osglue.c b/yaffs_osglue.c
-new file mode 100644
-index 0000000..2c34f99
---- /dev/null
-+++ b/yaffs_osglue.c
-@@ -0,0 +1,118 @@
-+/*
-+ * YAFFS: Yet Another Flash File System. A NAND-flash specific file system.
-+ *
-+ * Copyright (C) 2002-2011 Aleph One Ltd.
-+ *   for Toby Churchill Ltd and Brightstar Engineering
-+ *
-+ * Created by Charles Manning <[email protected]>
-+ *
-+ * This program is free software; you can redistribute it and/or modify
-+ * it under the terms of the GNU General Public License version 2 as
-+ * published by the Free Software Foundation.
-+ */
-+
-+
-+#include "yaffscfg.h"
-+#include "yaffs_guts.h"
-+#include "yaffsfs.h"
-+#include "yaffs_trace.h"
-+#include <rtthread.h>
-+
-+//#include <errno.h>
-+
-+
-+static int yaffsfs_lastError;
-+
-+void yaffsfs_SetError(int err)
-+{
-+	//Do whatever to set error
-+	yaffsfs_lastError = err;
-+}
-+
-+int yaffsfs_GetLastError(void)
-+{
-+	return yaffsfs_lastError;
-+}
-+
-+
-+#ifdef CONFIG_YAFFS_USE_PTHREADS
-+#include <pthread.h>
-+static pthread_mutex_t mutex1;
-+
-+
-+void yaffsfs_Lock(void)
-+{
-+	pthread_mutex_lock( &mutex1 );
-+}
-+
-+void yaffsfs_Unlock(void)
-+{
-+	pthread_mutex_unlock( &mutex1 );
-+}
-+
-+void yaffsfs_LockInit(void)
-+{
-+	pthread_mutex_init( &mutex1, NULL);
-+}
-+
-+#else
-+
-+static rt_mutex_t mutex = RT_NULL;
-+static rt_sem_t sem = RT_NULL;
-+void yaffsfs_Lock(void)
-+{
-+	rt_mutex_take(mutex, RT_WAITING_FOREVER);
-+}
-+
-+void yaffsfs_Unlock(void)
-+{
-+	rt_mutex_release(mutex);
-+}
-+
-+void yaffsfs_LockInit(void)
-+{
-+	mutex = rt_mutex_create("mutex", RT_IPC_FLAG_FIFO);
-+    if (mutex == RT_NULL)
-+    {
-+		yaffs_trace(YAFFS_TRACE_ERROR,
-+			"**>> yaffs error :yaffs_LockInit can't get a mutex!");
-+    }
-+
-+}
-+#endif
-+
-+u32 yaffsfs_CurrentTime(void)
-+{
-+	return 0;
-+}
-+
-+
-+static int yaffs_kill_alloc = 0;
-+static size_t total_malloced = 0;
-+static size_t malloc_limit = 0 & 6000000;
-+
-+void *yaffsfs_malloc(size_t size)
-+{
-+	void * this;
-+	if(yaffs_kill_alloc)
-+		return NULL;
-+	if(malloc_limit && malloc_limit <(total_malloced + size) )
-+		return NULL;
-+
-+	this = rt_malloc(size);
-+	if(this)
-+		total_malloced += size;
-+	return this;
-+}
-+
-+void yaffsfs_free(void *ptr)
-+{
-+	rt_free(ptr);
-+}
-+
-+void yaffsfs_OSInitialisation(void)
-+{
-+	yaffsfs_LockInit();
-+}
-+
-+