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author[email protected] <[email protected]>2011-10-08 14:50:08 +0000
committer[email protected] <[email protected]>2011-10-08 14:50:08 +0000
commitb2f92176865f623129e61a411568ef3b5e361836 (patch)
tree9bed58e4aa1457224d300313614fc58202cc7f19 /components/dfs/filesystems/devfs/devfs.c
parent9278fe2a8c33acf45e85700a9bba982685a58e97 (diff)
change to UNIX end of line.
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1746 bbd45198-f89e-11dd-88c7-29a3b14d5316
Diffstat (limited to 'components/dfs/filesystems/devfs/devfs.c')
-rw-r--r--components/dfs/filesystems/devfs/devfs.c546
1 files changed, 273 insertions, 273 deletions
diff --git a/components/dfs/filesystems/devfs/devfs.c b/components/dfs/filesystems/devfs/devfs.c
index 98f2146f6d..2a8e78df5e 100644
--- a/components/dfs/filesystems/devfs/devfs.c
+++ b/components/dfs/filesystems/devfs/devfs.c
@@ -1,276 +1,276 @@
-#include <rtthread.h>
-#include <dfs.h>
-#include <dfs_fs.h>
-
-#include "devfs.h"
-
-/* introduce from kservice.c */
+#include <rtthread.h>
+#include <dfs.h>
+#include <dfs_fs.h>
+
+#include "devfs.h"
+
+/* introduce from kservice.c */
#define rt_list_entry(node, type, member) \
((type *)((char *)(node) - (unsigned long)(&((type *)0)->member)))
-
-struct device_dirent
-{
- rt_device_t *devices;
- rt_uint16_t read_index;
- rt_uint16_t device_count;
-};
-
-int dfs_device_fs_mount(struct dfs_filesystem* fs, unsigned long rwflag, const void* data)
-{
- return DFS_STATUS_OK;
-}
-
-int dfs_device_fs_ioctl(struct dfs_fd* file, int cmd, void* args)
-{
- rt_err_t result;
- rt_device_t dev_id;
-
- RT_ASSERT(file != RT_NULL);
-
- /* get device handler */
- dev_id = (rt_device_t)file->data;
- RT_ASSERT(dev_id != RT_NULL);
-
- /* close device handler */
- result = rt_device_control(dev_id, cmd, args);
- if (result == RT_EOK)
- return DFS_STATUS_OK;
-
- return -DFS_STATUS_EIO;
-}
-
-int dfs_device_fs_read(struct dfs_fd* file, void *buf, rt_size_t count)
-{
- int result;
- rt_device_t dev_id;
-
- RT_ASSERT(file != RT_NULL);
-
- /* get device handler */
- dev_id = (rt_device_t)file->data;
- RT_ASSERT(dev_id != RT_NULL);
-
- /* read device data */
- result = rt_device_read(dev_id, file->pos, buf, count);
- file->pos += result;
-
- return result;
-}
-
-int dfs_device_fs_write(struct dfs_fd* file, const void *buf, rt_size_t count)
-{
- int result;
- rt_device_t dev_id;
-
- RT_ASSERT(file != RT_NULL);
-
- /* get device handler */
- dev_id = (rt_device_t)file->data;
- RT_ASSERT(dev_id != RT_NULL);
-
- /* read device data */
- result = rt_device_write(dev_id, file->pos, buf, count);
- file->pos += result;
-
- return result;
-}
-
-int dfs_device_fs_close(struct dfs_fd* file)
-{
- rt_err_t result;
- rt_device_t dev_id;
-
- RT_ASSERT(file != RT_NULL);
-
- if (file->type == FT_DIRECTORY)
- {
- struct device_dirent *root_dirent;
-
- root_dirent = (struct device_dirent*)file->data;
- RT_ASSERT(root_dirent != RT_NULL);
-
- /* release dirent */
- rt_free(root_dirent);
- return DFS_STATUS_OK;
- }
-
- /* get device handler */
- dev_id = (rt_device_t)file->data;
- RT_ASSERT(dev_id != RT_NULL);
-
- /* close device handler */
- result = rt_device_close(dev_id);
- if (result == RT_EOK)
- {
- file->data = RT_NULL;
- return DFS_STATUS_OK;
- }
-
- return -DFS_STATUS_EIO;
-}
-
-int dfs_device_fs_open(struct dfs_fd* file)
-{
- rt_device_t device;
-
- if (file->flags & DFS_O_CREAT) return -DFS_STATUS_EINVAL;
-
- /* open root directory */
- if ((file->path[0] == '/') && (file->path[1] == '\0') &&
- (file->flags & DFS_O_DIRECTORY))
- {
- struct rt_object* object;
- struct rt_list_node* node;
- struct rt_object_information *information;
- struct device_dirent* root_dirent;
- rt_uint32_t count = 0;
-
- extern struct rt_object_information rt_object_container[];
-
- /* lock scheduler */
- rt_enter_critical();
- /* traverse device object */
- information = &rt_object_container[RT_Object_Class_Device];
- for (node = information->object_list.next; node != &(information->object_list); node = node->next)
- {
- count ++;
- }
-
- root_dirent = (struct device_dirent*) rt_malloc (sizeof(struct device_dirent) +
- count * sizeof(rt_device_t));
- if (root_dirent != RT_NULL)
- {
- root_dirent->devices = (rt_device_t *)(root_dirent + 1);
- root_dirent->read_index = 0;
- root_dirent->device_count = count;
- count = 0;
- /* get all device node */
- for (node = information->object_list.next; node != &(information->object_list); node = node->next)
- {
- object = rt_list_entry(node, struct rt_object, list);
- root_dirent->devices[count] = (rt_device_t)object;
- count ++;
- }
- }
- rt_exit_critical();
-
- /* set data */
- file->data = root_dirent;
- return DFS_STATUS_OK;
- }
-
- device = rt_device_find(&file->path[1]);
- if (device == RT_NULL)
- return -DFS_STATUS_ENODEV;
-
- file->data = device;
- return DFS_STATUS_OK;
-}
-
-int dfs_device_fs_stat(struct dfs_filesystem* fs, const char *path, struct stat *st)
-{
- /* stat root directory */
- if ((path[0] == '/') && (path[1] == '\0'))
- {
- st->st_dev = 0;
-
- st->st_mode = DFS_S_IFREG | DFS_S_IRUSR | DFS_S_IRGRP | DFS_S_IROTH |
- DFS_S_IWUSR | DFS_S_IWGRP | DFS_S_IWOTH;
- st->st_mode &= ~DFS_S_IFREG;
- st->st_mode |= DFS_S_IFDIR | DFS_S_IXUSR | DFS_S_IXGRP | DFS_S_IXOTH;
-
- st->st_size = 0;
- st->st_mtime = 0;
- st->st_blksize = 512;
- return DFS_STATUS_OK;
- }
- else
- {
- rt_device_t dev_id;
-
- dev_id = rt_device_find(&path[1]);
- if (dev_id != RT_NULL)
- {
- st->st_dev = 0;
-
- st->st_mode = DFS_S_IRUSR | DFS_S_IRGRP | DFS_S_IROTH |
- DFS_S_IWUSR | DFS_S_IWGRP | DFS_S_IWOTH;
-
- if (dev_id->type == RT_Device_Class_Char)
- st->st_mode |= DFS_S_IFCHR;
- else if (dev_id->type == RT_Device_Class_Block)
- st->st_mode |= DFS_S_IFBLK;
- else
- st->st_mode |= DFS_S_IFREG;
-
- st->st_size = 0;
- st->st_mtime = 0;
- st->st_blksize = 512;
- return DFS_STATUS_OK;
- }
- }
-
- return -DFS_STATUS_ENOENT;
-}
-
-int dfs_device_fs_getdents(struct dfs_fd* file, struct dirent* dirp, rt_uint32_t count)
-{
- rt_uint32_t index;
- rt_object_t object;
- struct dirent* d;
- struct device_dirent *root_dirent;
-
- root_dirent = (struct device_dirent*)file->data;
- RT_ASSERT(root_dirent != RT_NULL);
-
- /* make integer count */
- count = (count / sizeof(struct dirent));
- if ( count == 0 ) return -DFS_STATUS_EINVAL;
-
- for (index = 0; index < count && index + root_dirent->read_index < root_dirent->device_count;
- index ++)
- {
- object = (rt_object_t)root_dirent->devices[root_dirent->read_index + index];
-
- d = dirp + index;
- d->d_type = DFS_DT_REG;
- d->d_namlen = RT_NAME_MAX;
- d->d_reclen = (rt_uint16_t)sizeof(struct dirent);
- rt_strncpy(d->d_name, object->name, RT_NAME_MAX);
- }
-
- root_dirent->read_index += index;
-
- return index * sizeof(struct dirent);
-}
-
-static const struct dfs_filesystem_operation _device_fs =
-{
- "devfs",
- dfs_device_fs_mount,
- RT_NULL,
- RT_NULL,
- RT_NULL,
-
- dfs_device_fs_open,
- dfs_device_fs_close,
- dfs_device_fs_ioctl,
- dfs_device_fs_read,
- dfs_device_fs_write,
- RT_NULL,
- RT_NULL,
- dfs_device_fs_getdents,
- RT_NULL,
- dfs_device_fs_stat,
- RT_NULL,
-};
-
-int devfs_init(void)
-{
- /* register rom file system */
- dfs_register(&_device_fs);
-
- return 0;
-}
-
+struct device_dirent
+{
+ rt_device_t *devices;
+ rt_uint16_t read_index;
+ rt_uint16_t device_count;
+};
+
+int dfs_device_fs_mount(struct dfs_filesystem* fs, unsigned long rwflag, const void* data)
+{
+ return DFS_STATUS_OK;
+}
+
+int dfs_device_fs_ioctl(struct dfs_fd* file, int cmd, void* args)
+{
+ rt_err_t result;
+ rt_device_t dev_id;
+
+ RT_ASSERT(file != RT_NULL);
+
+ /* get device handler */
+ dev_id = (rt_device_t)file->data;
+ RT_ASSERT(dev_id != RT_NULL);
+
+ /* close device handler */
+ result = rt_device_control(dev_id, cmd, args);
+ if (result == RT_EOK)
+ return DFS_STATUS_OK;
+
+ return -DFS_STATUS_EIO;
+}
+
+int dfs_device_fs_read(struct dfs_fd* file, void *buf, rt_size_t count)
+{
+ int result;
+ rt_device_t dev_id;
+
+ RT_ASSERT(file != RT_NULL);
+
+ /* get device handler */
+ dev_id = (rt_device_t)file->data;
+ RT_ASSERT(dev_id != RT_NULL);
+
+ /* read device data */
+ result = rt_device_read(dev_id, file->pos, buf, count);
+ file->pos += result;
+
+ return result;
+}
+
+int dfs_device_fs_write(struct dfs_fd* file, const void *buf, rt_size_t count)
+{
+ int result;
+ rt_device_t dev_id;
+
+ RT_ASSERT(file != RT_NULL);
+
+ /* get device handler */
+ dev_id = (rt_device_t)file->data;
+ RT_ASSERT(dev_id != RT_NULL);
+
+ /* read device data */
+ result = rt_device_write(dev_id, file->pos, buf, count);
+ file->pos += result;
+
+ return result;
+}
+
+int dfs_device_fs_close(struct dfs_fd* file)
+{
+ rt_err_t result;
+ rt_device_t dev_id;
+
+ RT_ASSERT(file != RT_NULL);
+
+ if (file->type == FT_DIRECTORY)
+ {
+ struct device_dirent *root_dirent;
+
+ root_dirent = (struct device_dirent*)file->data;
+ RT_ASSERT(root_dirent != RT_NULL);
+
+ /* release dirent */
+ rt_free(root_dirent);
+ return DFS_STATUS_OK;
+ }
+
+ /* get device handler */
+ dev_id = (rt_device_t)file->data;
+ RT_ASSERT(dev_id != RT_NULL);
+
+ /* close device handler */
+ result = rt_device_close(dev_id);
+ if (result == RT_EOK)
+ {
+ file->data = RT_NULL;
+ return DFS_STATUS_OK;
+ }
+
+ return -DFS_STATUS_EIO;
+}
+
+int dfs_device_fs_open(struct dfs_fd* file)
+{
+ rt_device_t device;
+
+ if (file->flags & DFS_O_CREAT) return -DFS_STATUS_EINVAL;
+
+ /* open root directory */
+ if ((file->path[0] == '/') && (file->path[1] == '\0') &&
+ (file->flags & DFS_O_DIRECTORY))
+ {
+ struct rt_object* object;
+ struct rt_list_node* node;
+ struct rt_object_information *information;
+ struct device_dirent* root_dirent;
+ rt_uint32_t count = 0;
+
+ extern struct rt_object_information rt_object_container[];
+
+ /* lock scheduler */
+ rt_enter_critical();
+
+ /* traverse device object */
+ information = &rt_object_container[RT_Object_Class_Device];
+ for (node = information->object_list.next; node != &(information->object_list); node = node->next)
+ {
+ count ++;
+ }
+
+ root_dirent = (struct device_dirent*) rt_malloc (sizeof(struct device_dirent) +
+ count * sizeof(rt_device_t));
+ if (root_dirent != RT_NULL)
+ {
+ root_dirent->devices = (rt_device_t *)(root_dirent + 1);
+ root_dirent->read_index = 0;
+ root_dirent->device_count = count;
+ count = 0;
+ /* get all device node */
+ for (node = information->object_list.next; node != &(information->object_list); node = node->next)
+ {
+ object = rt_list_entry(node, struct rt_object, list);
+ root_dirent->devices[count] = (rt_device_t)object;
+ count ++;
+ }
+ }
+ rt_exit_critical();
+
+ /* set data */
+ file->data = root_dirent;
+ return DFS_STATUS_OK;
+ }
+
+ device = rt_device_find(&file->path[1]);
+ if (device == RT_NULL)
+ return -DFS_STATUS_ENODEV;
+
+ file->data = device;
+ return DFS_STATUS_OK;
+}
+
+int dfs_device_fs_stat(struct dfs_filesystem* fs, const char *path, struct stat *st)
+{
+ /* stat root directory */
+ if ((path[0] == '/') && (path[1] == '\0'))
+ {
+ st->st_dev = 0;
+
+ st->st_mode = DFS_S_IFREG | DFS_S_IRUSR | DFS_S_IRGRP | DFS_S_IROTH |
+ DFS_S_IWUSR | DFS_S_IWGRP | DFS_S_IWOTH;
+ st->st_mode &= ~DFS_S_IFREG;
+ st->st_mode |= DFS_S_IFDIR | DFS_S_IXUSR | DFS_S_IXGRP | DFS_S_IXOTH;
+
+ st->st_size = 0;
+ st->st_mtime = 0;
+ st->st_blksize = 512;
+ return DFS_STATUS_OK;
+ }
+ else
+ {
+ rt_device_t dev_id;
+
+ dev_id = rt_device_find(&path[1]);
+ if (dev_id != RT_NULL)
+ {
+ st->st_dev = 0;
+
+ st->st_mode = DFS_S_IRUSR | DFS_S_IRGRP | DFS_S_IROTH |
+ DFS_S_IWUSR | DFS_S_IWGRP | DFS_S_IWOTH;
+
+ if (dev_id->type == RT_Device_Class_Char)
+ st->st_mode |= DFS_S_IFCHR;
+ else if (dev_id->type == RT_Device_Class_Block)
+ st->st_mode |= DFS_S_IFBLK;
+ else
+ st->st_mode |= DFS_S_IFREG;
+
+ st->st_size = 0;
+ st->st_mtime = 0;
+ st->st_blksize = 512;
+ return DFS_STATUS_OK;
+ }
+ }
+
+ return -DFS_STATUS_ENOENT;
+}
+
+int dfs_device_fs_getdents(struct dfs_fd* file, struct dirent* dirp, rt_uint32_t count)
+{
+ rt_uint32_t index;
+ rt_object_t object;
+ struct dirent* d;
+ struct device_dirent *root_dirent;
+
+ root_dirent = (struct device_dirent*)file->data;
+ RT_ASSERT(root_dirent != RT_NULL);
+
+ /* make integer count */
+ count = (count / sizeof(struct dirent));
+ if ( count == 0 ) return -DFS_STATUS_EINVAL;
+
+ for (index = 0; index < count && index + root_dirent->read_index < root_dirent->device_count;
+ index ++)
+ {
+ object = (rt_object_t)root_dirent->devices[root_dirent->read_index + index];
+
+ d = dirp + index;
+ d->d_type = DFS_DT_REG;
+ d->d_namlen = RT_NAME_MAX;
+ d->d_reclen = (rt_uint16_t)sizeof(struct dirent);
+ rt_strncpy(d->d_name, object->name, RT_NAME_MAX);
+ }
+
+ root_dirent->read_index += index;
+
+ return index * sizeof(struct dirent);
+}
+
+static const struct dfs_filesystem_operation _device_fs =
+{
+ "devfs",
+ dfs_device_fs_mount,
+ RT_NULL,
+ RT_NULL,
+ RT_NULL,
+
+ dfs_device_fs_open,
+ dfs_device_fs_close,
+ dfs_device_fs_ioctl,
+ dfs_device_fs_read,
+ dfs_device_fs_write,
+ RT_NULL,
+ RT_NULL,
+ dfs_device_fs_getdents,
+ RT_NULL,
+ dfs_device_fs_stat,
+ RT_NULL,
+};
+
+int devfs_init(void)
+{
+ /* register rom file system */
+ dfs_register(&_device_fs);
+
+ return 0;
+}
+