add dfs_win32.c (an windows directory can be mounted as an disk in DFS)

add demo code in application.c

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2454 bbd45198-f89e-11dd-88c7-29a3b14d5316

bsp/simulator/applications/application.c

@@ -22,7 +22,7 @@
 #include <components.h>
 #endif
 
-void rt_init_thread_entry(void* parameter)
+void rt_init_thread_entry(void *parameter)
 {
 #ifdef RT_USING_LWIP
     extern void pcap_netif_hw_init(void);
@@ -37,9 +37,24 @@ void rt_init_thread_entry(void* parameter)
     /* Filesystem Initialization */
 #ifdef RT_USING_DFS
     {
+#ifdef RT_USING_DFS_WINSHAREDIR
+        {
+            extern rt_err_t rt_win_sharedir_init(const char *name);
+            extern int dfs_win32_init(void);
+
+            rt_win_sharedir_init("wdd");
+            dfs_win32_init();
+
+            if (dfs_mount("wdd", "/", "wdir", 0, 0) == 0)
+                rt_kprintf("win32 share directory initialized!\n");
+            else
+                rt_kprintf("win32 share directory initialized failed!\n");
+        }
+#endif
+
 #ifdef RT_USING_DFS_ELMFAT
         /* mount sd card fat partition 1 as root directory */
-        if (dfs_mount("sd0", "/", "elm", 0, 0) == 0)
+        if (dfs_mount("sd0", "/disk/sd", "elm", 0, 0) == 0)
         {
             rt_kprintf("fatfs initialized!\n");
         }
@@ -49,7 +64,7 @@ void rt_init_thread_entry(void* parameter)
 
 #ifdef RT_USING_DFS_UFFS
         /* mount sd card fat partition 1 as root directory */
-        if (dfs_mount("nand0", "/nand", "uffs", 0, 0) == 0)
+        if (dfs_mount("nand0", "/disk/nand", "uffs", 0, 0) == 0)
         {
             rt_kprintf("uffs initialized!\n");
         }
@@ -59,42 +74,46 @@ void rt_init_thread_entry(void* parameter)
 
 #ifdef RT_USING_DFS_JFFS2
         /* mount sd card fat partition 1 as root directory */
-        if (dfs_mount("nor", "/nor", "jffs2", 0, 0) == 0)
+        if (dfs_mount("nor", "/disk/nor", "jffs2", 0, 0) == 0)
         {
             rt_kprintf("jffs2 initialized!\n");
         }
         else
             rt_kprintf("jffs2 initialzation failed!\n");
 #endif
+
+
     }
 #endif
 #ifdef WIN32
-	{
-		extern void low_cpu(void);
-		rt_thread_idle_sethook(low_cpu);
-	}
+    {
+        extern void low_cpu(void);
+        rt_thread_idle_sethook(low_cpu);
+    }
 #endif
 
 #if 0
-	{
-		extern void application_init(void);
-		rt_thread_delay(RT_TICK_PER_SECOND);
-		application_init();
-	}
+    {
+        extern void application_init(void);
+        rt_thread_delay(RT_TICK_PER_SECOND);
+        application_init();
+    }
 #endif
-#ifdef RT_USING_RTGUI
+
+#if defined(RT_USING_RTGUI)
+    rt_thread_delay(3000);
     realtouch_ui_init();
 #endif
 }
 
-void rt_test_thread_entry(void* parameter)
+void rt_test_thread_entry(void *parameter)
 {
-	int i;
-	for(i=0; i<10; i++)
-	{
-		rt_kprintf("hello, world\n");
-		rt_thread_delay(100);
-	}
+    int i;
+    for (i = 0; i < 10; i++)
+    {
+        rt_kprintf("hello, world\n");
+        rt_thread_delay(100);
+    }
 }
 
 int rt_application_init()
@@ -102,15 +121,15 @@ int rt_application_init()
     rt_thread_t tid;
 
     tid = rt_thread_create("init",
-        rt_init_thread_entry, RT_NULL,
-        2048, RT_THREAD_PRIORITY_MAX/3, 20);
+                           rt_init_thread_entry, RT_NULL,
+                           2048, RT_THREAD_PRIORITY_MAX / 3, 20);
 
     if (tid != RT_NULL)
         rt_thread_startup(tid);
 
     tid = rt_thread_create("test",
-        rt_test_thread_entry, RT_NULL,
-        2048, RT_THREAD_PRIORITY_MAX * 3 /4, 20);
+                           rt_test_thread_entry, RT_NULL,
+                           2048, RT_THREAD_PRIORITY_MAX * 3 / 4, 20);
     if (tid != RT_NULL)
         rt_thread_startup(tid);
 
@@ -120,7 +139,7 @@ int rt_application_init()
 #include <windows.h>
 void low_cpu(void)
 {
-	Sleep(1000);
+    Sleep(1000);
 }
 
 #ifndef _CRT_TERMINATE_DEFINED
@@ -141,89 +160,90 @@ FINSH_FUNCTION_EXPORT_ALIAS(rt_hw_exit, exit, exit rt-thread);
 #include <dfs_posix.h>
 void test_fs(void)
 {
-  int fd;
-  DIR* dir;
-  struct dirent* dirp;
-  off_t off[6];
-  int i;
-  mkdir("/testdir",0777);
-  fd = open("/testdir/file1",O_CREAT|O_RDWR,0777);
-  close(fd);
-  fd = open("/testdir/file2",O_CREAT|O_RDWR,0777);
-  close(fd);
-  fd = open("/testdir/file3",O_CREAT|O_RDWR,0777);
-  close(fd);
-  fd = open("/testdir/file4",O_CREAT|O_RDWR,0777);
-  close(fd);
-  fd = open("/testdir/file5",O_CREAT|O_RDWR,0777);
-  close(fd);
-  fd = open("/testdir/file6",O_CREAT|O_RDWR,0777);
-  close(fd);
-
-  dir = opendir("/testdir");
-  for(i=0;i<6;i++)
-  {
-     off[i] = telldir(dir); 
-     dirp = readdir(dir);
-     if(dirp)
-        rt_kprintf("#%d NAME:%s\n",i,dirp->d_name);
-     else break;
-  }
-  for(i=0;i<6;i++)
-  {
-     seekdir(dir,off[i]);
-     dirp = readdir(dir);
-     if(dirp)
-        rt_kprintf("#%d NAME:%s\n",i,dirp->d_name);
-     else break;
-  }
-
-  rt_kprintf("unlink file2\n");
-  unlink("/testdir/file2");
-  rewinddir(dir);
-  for(i=0;i<6;i++)
-  {
-     off[i] = telldir(dir); 
-     dirp = readdir(dir);
-     if(dirp)
-        rt_kprintf("#%d NAME:%s\n",i,dirp->d_name);
-     else break;
-  }
-  for(i=0;i<6;i++)
-  {
-     seekdir(dir,off[i]);
-     dirp = readdir(dir);
-     if(dirp)
-        rt_kprintf("#%d NAME:%s\n",i,dirp->d_name);
-     else break;
-  }
-
-  rt_kprintf("unlink file4\n");
-  unlink("/testdir/file4");
-  rewinddir(dir);
-  for(i=0;i<6;i++)
-  {
-     off[i] = telldir(dir); 
-     dirp = readdir(dir);
-     if(dirp)
-        rt_kprintf("#%d NAME:%s\n",i,dirp->d_name);
-     else break;
-  }
-  for(i=0;i<6;i++)
-  {
-     seekdir(dir,off[i]);
-     dirp = readdir(dir);
-     if(dirp)
-        rt_kprintf("#%d NAME:%s\n",i,dirp->d_name);
-     else break;
-  }
-
-  unlink("/testdir/file1");
-  unlink("/testdir/file3");
-  unlink("/testdir/file5");
-  unlink("/testdir/file6");
-
-  closedir(dir);
+    int fd;
+    DIR *dir;
+    struct dirent *dirp;
+    off_t off[6];
+    int i;
+    mkdir("/testdir", 0777);
+    fd = open("/testdir/file1", O_CREAT | O_RDWR, 0777);
+    close(fd);
+    fd = open("/testdir/file2", O_CREAT | O_RDWR, 0777);
+    close(fd);
+    fd = open("/testdir/file3", O_CREAT | O_RDWR, 0777);
+    close(fd);
+    fd = open("/testdir/file4", O_CREAT | O_RDWR, 0777);
+    close(fd);
+    fd = open("/testdir/file5", O_CREAT | O_RDWR, 0777);
+    close(fd);
+    fd = open("/testdir/file6", O_CREAT | O_RDWR, 0777);
+    close(fd);
+
+    dir = opendir("/testdir");
+    for (i = 0; i < 6; i++)
+    {
+        off[i] = telldir(dir);
+        dirp = readdir(dir);
+        if (dirp)
+            rt_kprintf("#%d NAME:%s\n", i, dirp->d_name);
+        else break;
+    }
+    for (i = 0; i < 6; i++)
+    {
+        seekdir(dir, off[i]);
+        dirp = readdir(dir);
+        if (dirp)
+            rt_kprintf("#%d NAME:%s\n", i, dirp->d_name);
+        else break;
+    }
+
+    rt_kprintf("unlink file2\n");
+    unlink("/testdir/file2");
+    rewinddir(dir);
+    for (i = 0; i < 6; i++)
+    {
+        off[i] = telldir(dir);
+        dirp = readdir(dir);
+        if (dirp)
+            rt_kprintf("#%d NAME:%s\n", i, dirp->d_name);
+        else break;
+    }
+    for (i = 0; i < 6; i++)
+    {
+        seekdir(dir, off[i]);
+        dirp = readdir(dir);
+        if (dirp)
+            rt_kprintf("#%d NAME:%s\n", i, dirp->d_name);
+        else break;
+    }
+
+    rt_kprintf("unlink file4\n");
+    unlink("/testdir/file4");
+    rewinddir(dir);
+    for (i = 0; i < 6; i++)
+    {
+        off[i] = telldir(dir);
+        dirp = readdir(dir);
+        if (dirp)
+            rt_kprintf("#%d NAME:%s\n", i, dirp->d_name);
+        else break;
+    }
+    for (i = 0; i < 6; i++)
+    {
+        seekdir(dir, off[i]);
+        dirp = readdir(dir);
+        if (dirp)
+            rt_kprintf("#%d NAME:%s\n", i, dirp->d_name);
+        else break;
+    }
+
+    unlink("/testdir/file1");
+    unlink("/testdir/file3");
+    unlink("/testdir/file5");
+    unlink("/testdir/file6");
+
+    closedir(dir);
 }
 FINSH_FUNCTION_EXPORT(test_fs, test fs);
+
 /*@}*/

bsp/simulator/applications/dfs_win32.c

+
+/*
+ * File      : rtthread.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006-2012, 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
+ * 2012-11-27     prife        the first version
+ */
+#include <rtthread.h>
+
+#include <dfs_fs.h>
+#include <dfs_def.h>
+#include <rtdevice.h>
+//#include "dfs_win32.h"
+
+#include <io.h>
+#include <fcntl.h>
+#include <string.h>
+#include <stdio.h>
+#include <string.h>
+#include <WinError.h>
+#include  <windows.h>
+
+/*
+ * RT-Thread DFS Interface for win-directory as an disk device
+ */
+#define FILE_PATH_MAX           256  /* the longest file path */
+
+#define WIN32_DIRDISK_ROOT  "." //"F:\\Project\\svn\\rtt\\trunk\\bsp\\simulator_test"
+
+static int win32_result_to_dfs(int res)
+{
+    rt_kprintf("win error: %x", res);
+    return -1;
+}
+
+static int dfs_win32_mount(
+    struct dfs_filesystem *fs,
+    unsigned long rwflag,
+    const void *data)
+{
+    return 0;
+}
+
+static int dfs_win32_unmount(struct dfs_filesystem *fs)
+{
+    return 0;
+}
+
+static int dfs_win32_mkfs(const char *device_name)
+{
+    return -DFS_STATUS_ENOSYS;
+}
+
+static int dfs_win32_statfs(struct dfs_filesystem *fs,
+                            struct statfs *buf)
+{
+    return -DFS_STATUS_ENOSYS;
+}
+
+static char *winpath_dirdup(char *des, const char *src)
+{
+    char *path;
+    int i = 0;
+
+    path = rt_malloc(FILE_PATH_MAX);
+    if (path == RT_NULL)
+        return RT_NULL;
+
+    strcpy(path, des);
+    strcat(path, src);
+
+    while (1)
+    {
+        if (path[i] == 0)
+            break;
+
+        if (path[i] == '/')
+            path[i] = '\\';
+
+        i++;
+    }
+
+    return path;
+}
+
+static int dfs_win32_open(struct dfs_fd *file)
+{
+    int fd;
+    int oflag, mode;
+    char *file_path;
+    int res;
+
+    oflag = file->flags;
+    if (oflag & DFS_O_DIRECTORY)   /* operations about dir */
+    {
+        struct _finddata_t  dir;
+        int handle;
+        int len;
+
+        file_path = winpath_dirdup(WIN32_DIRDISK_ROOT, file->path);
+
+        if (oflag & DFS_O_CREAT)   /* create a dir*/
+        {
+            res = CreateDirectory(file_path, NULL);
+            if (res == ERROR_ALREADY_EXISTS)
+            {
+                rt_kprintf("already exists!\n");
+                return -DFS_STATUS_EEXIST;
+            }
+            else if (res == ERROR_PATH_NOT_FOUND)
+            {
+                rt_kprintf("One or more intermediate directories do not exist!\n");
+                return -DFS_STATUS_ENOENT;
+            }
+        }
+
+        len = strlen(file_path);
+        if (file_path[len - 1] != '\\')
+        {
+            file_path[len] = '\\';
+            file_path[len + 1] = 0;
+        }
+
+        strcat(file_path, "*.*");
+        /* _findfirst õ . */
+        if ((handle = _findfirst(file_path, &dir)) == -1)
+        {
+            rt_free(file_path);
+            goto __err;
+        }
+
+        /* save this pointer,will used by  dfs_win32_getdents*/
+        file->data = handle;
+        rt_free(file_path);
+        return DFS_STATUS_OK;
+    }
+    /* regular file operations */
+    mode = O_BINARY;
+    if (oflag & DFS_O_RDONLY) mode |= O_RDONLY;
+    if (oflag & DFS_O_WRONLY) mode |= O_WRONLY;
+    if (oflag & DFS_O_RDWR)   mode |= O_RDWR;
+    /* Opens the file, if it is existing. If not, a new file is created. */
+    if (oflag & DFS_O_CREAT) mode |= O_CREAT;
+    /* Creates a new file. If the file is existing, it is truncated and overwritten. */
+    if (oflag & DFS_O_TRUNC) mode |= O_TRUNC;
+    /* Creates a new file. The function fails if the file is already existing. */
+    if (oflag & DFS_O_EXCL) mode |= O_EXCL;
+
+    file_path = winpath_dirdup(WIN32_DIRDISK_ROOT, file->path);
+    fd = _open(file_path, mode);
+    rt_free(file_path);
+
+    if (fd < 0)
+        goto __err;
+
+    /* save this pointer, it will be used when calling read()write(),
+     * flush(), seek(), and will be free when calling close()*/
+    file->data = (void *)fd;
+    file->pos  = 0;
+    file->size = _lseek(fd, 0, SEEK_END);
+
+    if (oflag & DFS_O_APPEND)
+    {
+        file->pos = file->size;
+    }
+    else
+        _lseek(fd, 0, SEEK_SET);
+
+    return 0;
+
+__err:
+    return win32_result_to_dfs(GetLastError());
+}
+
+static int dfs_win32_close(struct dfs_fd *file)
+{
+    int oflag;
+
+    oflag = file->flags;
+    if (oflag & DFS_O_DIRECTORY)
+    {
+        /* operations about dir */
+        if (_findclose(file->data) < 0)
+            goto __err;
+
+        return 0;
+    }
+
+    /* regular file operations */
+    if (_close((int)(file->data)) < 0)
+        goto __err;
+
+    return 0;
+
+__err:
+    return win32_result_to_dfs(GetLastError());
+}
+
+static int dfs_win32_ioctl(struct dfs_fd *file, int cmd, void *args)
+{
+    return -DFS_STATUS_ENOSYS;
+}
+
+static int dfs_win32_read(struct dfs_fd *file, void *buf, rt_size_t len)
+{
+    int fd;
+    int char_read;
+
+    fd = (int)(file->data);
+    char_read = _read(fd, buf, len);
+    if (char_read < 0)
+        return win32_result_to_dfs(GetLastError());
+
+    /* update position */
+    file->pos = _lseek(fd, 0, SEEK_CUR);
+    return char_read;
+}
+
+static int dfs_win32_write(struct dfs_fd *file,
+                           const void *buf,
+                           rt_size_t len)
+{
+    int fd;
+    int char_write;
+
+    fd = (int)(file->data);
+
+    char_write = _write(fd, buf, len);
+    if (char_write < 0)
+        return win32_result_to_dfs(GetLastError());
+
+    /* update position */
+    file->pos = _lseek(fd, 0, SEEK_CUR);
+    return char_write;
+}
+
+static int dfs_win32_flush(struct dfs_fd *file)
+{
+    return 0;
+}
+
+static int dfs_win32_seek(struct dfs_fd *file,
+                          rt_off_t offset)
+{
+    int result;
+
+    /* set offset as current offset */
+    if (file->type == FT_DIRECTORY)
+    {
+        return -DFS_STATUS_ENOSYS;
+    }
+    else if (file->type == FT_REGULAR)
+    {
+        result = _lseek((int)(file->data), offset, SEEK_SET);
+        if (result >= 0)
+            return offset;
+    }
+
+    return win32_result_to_dfs(GetLastError());
+}
+
+/* return the size of struct dirent*/
+static int dfs_win32_getdents(
+    struct dfs_fd *file,
+    struct dirent *dirp,
+    rt_uint32_t count)
+{
+    rt_uint32_t index;
+    struct dirent *d;
+    struct _finddata_t  fileinfo;
+    int handle;
+    int result;
+
+    handle = (int)(file->data);
+    RT_ASSERT(handle != RT_NULL);
+
+    /* round count, count is always 1 */
+    count = (count / sizeof(struct dirent)) * sizeof(struct dirent);
+    if (count == 0) return -DFS_STATUS_EINVAL;
+
+    index = 0;
+    /* usually, the while loop should only be looped only once! */
+    while (1)
+    {
+        d = dirp + index;
+        if (_findnext(handle, &fileinfo) != 0) //-1 failed
+            goto __err;
+
+        if (fileinfo.attrib & _A_SUBDIR)
+            d->d_type = DFS_DT_DIR;  /* directory */
+        else
+            d->d_type = DFS_DT_REG;
+
+        /* write the rest args of struct dirent* dirp  */
+        d->d_namlen = strlen(fileinfo.name);
+        d->d_reclen = (rt_uint16_t)sizeof(struct dirent);
+        strcpy(d->d_name, fileinfo.name);
+
+        index ++;
+        if (index * sizeof(struct dirent) >= count)
+            break;
+    }
+    if (index == 0)
+        return 0;
+
+    file->pos += index * sizeof(struct dirent);
+
+    return index * sizeof(struct dirent);
+
+__err:
+    if ((result = GetLastError()) == ERROR_NO_MORE_FILES)
+        return 0;
+    else
+        return win32_result_to_dfs(result);
+}
+
+static int dfs_win32_unlink(struct dfs_filesystem *fs, const char *path)
+{
+    int result;
+    char *fp;
+    fp = winpath_dirdup(WIN32_DIRDISK_ROOT, path);
+    if (fp == RT_NULL)
+    {
+        rt_kprintf("out of memory.\n");
+        return -DFS_STATUS_ENOMEM;
+    }
+
+    result = GetFileAttributes(fp);
+    if (result == INVALID_FILE_ATTRIBUTES)
+        goto __err;
+
+    if (result & FILE_ATTRIBUTE_DIRECTORY)//winnt.h
+    {
+        if (RemoveDirectory(fp) == RT_FALSE)
+            goto __err;
+    }
+    else //(result & FILE_ATTRIBUTE_NORMAL)
+    {
+        if (_unlink(fp) < 0)
+            goto __err;
+    }
+
+    rt_free(fp);
+    return 0;
+__err:
+    rt_free(fp);
+    return win32_result_to_dfs(GetLastError());
+}
+
+static int dfs_win32_rename(
+    struct dfs_filesystem *fs,
+    const char *oldpath,
+    const char *newpath)
+{
+    int result;
+    char *op, *np;
+    op = winpath_dirdup(WIN32_DIRDISK_ROOT, oldpath);
+    np = winpath_dirdup(WIN32_DIRDISK_ROOT, newpath);
+    if (op == RT_NULL || np == RT_NULL)
+    {
+        rt_kprintf("out of memory.\n");
+        return -DFS_STATUS_ENOMEM;
+    }
+
+    /* If the function fails, the return value is zero. */
+    result = MoveFile(op, np);
+
+    rt_free(op);
+    rt_free(np);
+
+    if (result == 0)
+        return win32_result_to_dfs(GetLastError());
+
+    return 0;
+}
+
+static int dfs_win32_stat(struct dfs_filesystem *fs, const char *path, struct stat *st)
+{
+    WIN32_FIND_DATA fileInfo;
+    HANDLE hFind;
+    char *fp;
+    fp = winpath_dirdup(WIN32_DIRDISK_ROOT, path);
+    if (fp == RT_NULL)
+    {
+        rt_kprintf("out of memory.\n");
+        return -DFS_STATUS_ENOMEM;
+    }
+
+    hFind = FindFirstFile(fp, &fileInfo);
+    rt_free(fp);
+
+    if (hFind == INVALID_HANDLE_VALUE)
+        goto __err;
+
+    st->st_mode = DFS_S_IFREG | DFS_S_IRUSR | DFS_S_IRGRP | DFS_S_IROTH |
+                  DFS_S_IWUSR | DFS_S_IWGRP | DFS_S_IWOTH;
+
+    /* convert file info to dfs stat structure */
+    if (fileInfo.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
+    {
+        st->st_mode &= ~DFS_S_IFREG;
+        st->st_mode |= DFS_S_IFDIR | DFS_S_IXUSR | DFS_S_IXGRP | DFS_S_IXOTH;
+    }
+
+    st->st_dev  = 0;
+    st->st_size = fileInfo.nFileSizeLow;
+    st->st_mtime = 0;
+    st->st_blksize = 0;
+
+    FindClose(hFind);
+
+    return 0;
+
+__err:
+    return win32_result_to_dfs(GetLastError());
+}
+
+static const struct dfs_filesystem_operation dfs_win32_ops =
+{
+    "wdir", /* file system type: dir */
+    DFS_FS_FLAG_DEFAULT,
+    dfs_win32_mount,
+    dfs_win32_unmount,
+    dfs_win32_mkfs,
+    dfs_win32_statfs,
+
+    dfs_win32_open,
+    dfs_win32_close,
+    dfs_win32_ioctl,
+    dfs_win32_read,
+    dfs_win32_write,
+    dfs_win32_flush,
+    dfs_win32_seek,
+    dfs_win32_getdents,
+    dfs_win32_unlink,
+    dfs_win32_stat,
+    dfs_win32_rename,
+};
+
+int dfs_win32_init(void)
+{
+    /* register uffs file system */
+    dfs_register(&dfs_win32_ops);
+
+    return 0;
+}
+
+static rt_err_t nop_init(rt_device_t dev)
+{
+    return RT_EOK;
+}
+
+static rt_err_t nop_open(rt_device_t dev, rt_uint16_t oflag)
+{
+    return RT_EOK;
+}
+
+static rt_err_t nop_close(rt_device_t dev)
+{
+    return RT_EOK;
+}
+
+static rt_size_t nop_read(rt_device_t dev,
+                          rt_off_t    pos,
+                          void       *buffer,
+                          rt_size_t   size)
+{
+    return size;
+}
+
+static rt_size_t nop_write(rt_device_t dev,
+                           rt_off_t    pos,
+                           const void *buffer,
+                           rt_size_t   size)
+{
+    return size;
+}
+
+static rt_err_t nop_control(rt_device_t dev, rt_uint8_t cmd, void *args)
+{
+    return RT_EOK;
+}
+
+static struct rt_device win_sharedir_dev;
+rt_err_t rt_win_sharedir_init(const char *name)
+{
+    rt_device_t dev;
+
+    dev = &win_sharedir_dev;
+    RT_ASSERT(dev != RT_NULL);
+
+    /* set device class and generic device interface */
+    dev->type        = RT_Device_Class_Block;
+    dev->init        = nop_init;
+    dev->open        = nop_open;
+    dev->read        = nop_read;
+    dev->write       = nop_write;
+    dev->close       = nop_close;
+    dev->control     = nop_control;
+
+    dev->rx_indicate = RT_NULL;
+    dev->tx_complete = RT_NULL;
+
+    /* register to RT-Thread device system */
+    return rt_device_register(dev, name, RT_DEVICE_FLAG_RDWR | RT_DEVICE_FLAG_STANDALONE);
+}

bsp/simulator/rtconfig.h

@@ -15,6 +15,7 @@
 #define RT_USING_MTD_NOR
 #define RT_USING_DFS_UFFS
 #define RT_USING_DFS_JFFS2
+#define RT_USING_DFS_WINSHAREDIR
 
 /* RT_NAME_MAX*/
 #define RT_NAME_MAX	8