243 lines
7.1 KiB
C
243 lines
7.1 KiB
C
/*
|
|
ChibiOS - Copyright (C) 2006,2007,2008,2009,2010,2011,2012,2013,2014,
|
|
2015,2016,2017,2018,2019,2020,2021 Giovanni Di Sirio.
|
|
|
|
This file is part of ChibiOS.
|
|
|
|
ChibiOS is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation version 3 of the License.
|
|
|
|
ChibiOS is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/**
|
|
* @file vfs/include/vfsnodes.h
|
|
* @brief VFS nodes header file.
|
|
*
|
|
* @addtogroup VFS_NODES
|
|
* @{
|
|
*/
|
|
|
|
#ifndef VFSNODES_H
|
|
#define VFSNODES_H
|
|
|
|
/*===========================================================================*/
|
|
/* Module constants. */
|
|
/*===========================================================================*/
|
|
|
|
/**
|
|
* @name Node attributes.
|
|
* @{
|
|
*/
|
|
#define VFS_NODE_ATTR_READONLY 1U
|
|
#define VFS_NODE_ATTR_RESERVED2 2U
|
|
#define VFS_NODE_ATTR_SYSTEM 4U
|
|
#define VFS_NODE_ATTR_RESERVED8 8U
|
|
#define VFS_NODE_ATTR_ISDIR 16U
|
|
#define VFS_NODE_ATTR_ISSTREAM 256U
|
|
/** @} */
|
|
|
|
/*===========================================================================*/
|
|
/* Module pre-compile time settings. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Derived constants and error checks. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* Module data structures and types. */
|
|
/*===========================================================================*/
|
|
|
|
/* Forward declaration because nodes holds references to drivers.*/
|
|
typedef struct vfs_driver vfs_driver_c;
|
|
|
|
/**
|
|
* @brief Type of a file offset.
|
|
*/
|
|
typedef uint32_t vfs_offset_t;
|
|
|
|
/**
|
|
* @brief Type of a node attributes.
|
|
*/
|
|
typedef uint32_t vfs_nodeattr_t;
|
|
|
|
/**
|
|
* @brief Type of a node information structure.
|
|
*/
|
|
typedef struct vfs_direntry_info {
|
|
/**
|
|
* @brief Size of the node.
|
|
*/
|
|
vfs_nodeattr_t attr;
|
|
/**
|
|
* @brief Size of the node.
|
|
*/
|
|
vfs_offset_t size;
|
|
/**
|
|
* @brief Name of the node.
|
|
*/
|
|
char name[VFS_CFG_NAMELEN_MAX + 1];
|
|
} vfs_direntry_info_t;
|
|
|
|
/**
|
|
* @brief Type of a node information structure.
|
|
* @todo Add time, permissions etc.
|
|
*/
|
|
typedef struct vfs_file_stat {
|
|
/**
|
|
* @brief Size of the node.
|
|
*/
|
|
vfs_nodeattr_t attr;
|
|
/**
|
|
* @brief Size of the node.
|
|
*/
|
|
vfs_offset_t size;
|
|
} vfs_file_stat_t;
|
|
|
|
/**
|
|
* @brief Type of a generic VFS node class.
|
|
*/
|
|
typedef struct vfs_node vfs_node_c;
|
|
|
|
/**
|
|
* @brief @p vfs_node_c specific methods.
|
|
*/
|
|
#define __vfs_node_methods \
|
|
__referenced_object_methods
|
|
|
|
/**
|
|
* @brief @p vfs_node_c specific data.
|
|
*/
|
|
#define __vfs_node_data \
|
|
__referenced_object_data \
|
|
/* Driver handling this node.*/ \
|
|
vfs_driver_c *driver;
|
|
|
|
/**
|
|
* @brief @p vfs_node_c virtual methods table.
|
|
*/
|
|
struct vfs_node_vmt {
|
|
__vfs_node_methods
|
|
};
|
|
|
|
/**
|
|
* @brief Structure representing a generic VFS node.
|
|
*/
|
|
struct vfs_node {
|
|
/**
|
|
* @brief Virtual Methods Table.
|
|
*/
|
|
const struct vfs_node_vmt *vmt;
|
|
__vfs_node_data
|
|
};
|
|
|
|
/**
|
|
* @brief Type of a directory VFS node class.
|
|
*/
|
|
typedef struct vfs_directory_node vfs_directory_node_c;
|
|
|
|
/**
|
|
* @brief @p vfs_directory_node_c specific methods.
|
|
*/
|
|
#define __vfs_directory_node_methods \
|
|
__vfs_node_methods \
|
|
msg_t (*dir_first)(void *instance, vfs_direntry_info_t *dip); \
|
|
msg_t (*dir_next)(void *instance, vfs_direntry_info_t *dip);
|
|
|
|
/**
|
|
* @brief @p vfs_directory_node_c specific data.
|
|
*/
|
|
#define __vfs_directory_node_data \
|
|
__vfs_node_data
|
|
|
|
/**
|
|
* @brief @p vfs_directory_node_c virtual methods table.
|
|
*/
|
|
struct vfs_directory_node_vmt {
|
|
__vfs_directory_node_methods
|
|
};
|
|
|
|
/**
|
|
* @brief Structure representing a directory VFS node.
|
|
*/
|
|
struct vfs_directory_node {
|
|
/**
|
|
* @brief Virtual Methods Table.
|
|
*/
|
|
const struct vfs_directory_node_vmt *vmt;
|
|
__vfs_directory_node_data
|
|
};
|
|
|
|
/**
|
|
* @brief Type of a a file VFS node class.
|
|
*/
|
|
typedef struct vfs_file_node vfs_file_node_c;
|
|
|
|
/**
|
|
* @brief @p vfs_file_node_c specific methods.
|
|
*/
|
|
#define __vfs_file_node_methods \
|
|
__vfs_node_methods \
|
|
BaseSequentialStream *(*file_get_stream)(void *instance); \
|
|
ssize_t (*file_read)(void *instance, uint8_t *buf, size_t n); \
|
|
ssize_t (*file_write)(void *instance, const uint8_t *buf, size_t n); \
|
|
msg_t (*file_setpos)(void *instance, vfs_offset_t offset); \
|
|
vfs_offset_t (*file_getpos)(void *instance); \
|
|
msg_t (*file_getstat)(void *instance, vfs_file_stat_t *fsp);
|
|
|
|
/**
|
|
* @brief @p vfs_file_node_c specific data.
|
|
*/
|
|
#define __vfs_file_node_data \
|
|
__vfs_node_data
|
|
|
|
/**
|
|
* @brief @p vfs_file_node_c virtual methods table.
|
|
*/
|
|
struct vfs_file_node_vmt {
|
|
__vfs_file_node_methods
|
|
};
|
|
|
|
/**
|
|
* @brief Structure representing a file VFS node.
|
|
*/
|
|
struct vfs_file_node {
|
|
/**
|
|
* @brief Virtual Methods Table.
|
|
*/
|
|
const struct vfs_file_node_vmt *vmt;
|
|
__vfs_file_node_data
|
|
};
|
|
|
|
/*===========================================================================*/
|
|
/* Module macros. */
|
|
/*===========================================================================*/
|
|
|
|
/*===========================================================================*/
|
|
/* External declarations. */
|
|
/*===========================================================================*/
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
/*===========================================================================*/
|
|
/* Module inline functions. */
|
|
/*===========================================================================*/
|
|
|
|
#endif /* VFSNODES_H */
|
|
|
|
/** @} */
|