X-Git-Url: https://codewiz.org/gitweb?a=blobdiff_plain;f=fs%2Fbattfs.h;h=d3088847a4a3b3b26c7bcdbae6beee67e0632e1f;hb=HEAD;hp=1048b66c99f15a86b652b90bab4663407a540e90;hpb=4de4b5e781709be8e01087e0cd434cc3f3dae7ab;p=bertos.git

diff --git a/fs/battfs.h b/fs/battfs.h
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--- a/fs/battfs.h
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-/**
- * \file
- * <!--
- * This file is part of BeRTOS.
- *
- * Bertos 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; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- *
- * As a special exception, you may use this file as part of a free software
- * library without restriction.  Specifically, if other files instantiate
- * templates or use macros or inline functions from this file, or you compile
- * this file and link it with other files to produce an executable, this
- * file does not by itself cause the resulting executable to be covered by
- * the GNU General Public License.  This exception does not however
- * invalidate any other reasons why the executable file might be covered by
- * the GNU General Public License.
- *
- * Copyright 2007 Develer S.r.l. (http://www.develer.com/)
- *
- * -->
- *
- * \version $Id:$
- *
- * \author Francesco Sacchi <batt@develer.com>
- *
- * \brief BattFS: a filesystem for embedded platforms (interface).
- * TODO: Add detailed filesystem description.
- */
-
-#ifndef FS_BATTFS_H
-#define FS_BATTFS_H
-
-#include <cfg/compiler.h> // uintXX_t; STATIC_ASSERT
-#include <cpu/types.h> // CPU_BITS_PER_CHAR
-
-typedef uint16_t fill_t;
-typedef fill_t   pgaddr_t;
-typedef uint16_t pgoff_t;
-typedef pgoff_t  mark_t;
-typedef uint8_t  inode_t;
-typedef uint8_t  seq_t;
-typedef uint16_t fcs_t;
-
-/**
- * BattFS page header.
- * \note fields order is chosen to comply
- * with CPU alignment.
- */
-typedef struct BattFsPageHeader
-{
-	inode_t  inode; ///< File inode (file identifier).
-	seq_t    seq;   ///< Page sequence number.
-	mark_t   mark;  ///< Marker used to keep trace of free/used pages.
-	pgoff_t  pgoff; ///< Page offset inside file.
-	fill_t   fill;  ///< Filled bytes in page.
-	uint16_t rfu;   ///< Reserved for future use, 0xFFFF for now.
-	fcs_t    fcs;   ///< FCS (Frame Check Sequence) of the page header.
-} BattFsPageHeader;
-
-/* Ensure structure has no padding added */
-STATIC_ASSERT(sizeof(BattFsPageHeader) == 12);
-
-/* Fwd decl */
-struct BattFsSuper;
-
-/**
- * Type for disk page addressing.
- */
-typedef uint16_t pgcnt_t;
-
-/**
- * Type interface for disk init function.
- * \return true if all is ok, false otherwise.
- */
-typedef bool (*disk_open_t) (struct BattFsSuper *d);
-
-/**
- * Type interface for disk page read function.
- * \a page is the page address, \a addr the address inside the page,
- * \a size the lenght to be read.
- * \return the number of bytes read.
- */
-typedef size_t (*disk_page_read_t) (struct BattFsSuper *d, pgcnt_t page, pgaddr_t addr, void *buf, size_t);
-
-/**
- * Type interface for disk page write function.
- * \a page is the page address, \a addr the address inside the page,
- * \a size the lenght to be written.
- * \return the number of bytes written.
- */
-typedef size_t	(*disk_page_write_t) (struct BattFsSuper *d, pgcnt_t page, pgaddr_t addr, void *buf, size_t);
-
-/**
- * Type interface for disk page erase function.
- * \a page is the page address.
- * \return true if all is ok, false otherwise.
- */
-typedef bool (*disk_page_erase_t) (struct BattFsSuper *d, pgcnt_t page);
-
-/**
- * Type interface for disk deinit function.
- * \return true if all is ok, false otherwise.
- */
-typedef bool (*disk_close_t) (struct BattFsSuper *d);
-
-
-typedef uint32_t disk_size_t; ///< Type for disk sizes.
-
-/**
- * Context used to describe a disk.
- * This context structure will be used to access disk.
- * Must be initialized by hw memory driver.
- */
-typedef struct BattFsSuper
-{
-	disk_open_t open;        ///< Disk init.
-	disk_page_read_t  read;  ///< Page read.
-	disk_page_write_t write; ///< Page write.
-	disk_page_erase_t erase; ///< Page erase.
-	disk_close_t close;      ///< Disk deinit.
-
-	pgaddr_t page_size;      ///< Size of a disk page, in bytes.
-	pgcnt_t page_count;      ///< Number of pages on disk.
-
-	/**
-	 * Page allocation array.
-	 * This array must be allocated somewhere and
-	 * must have enough space for page_count elements.
-	 * Is used by the filesystem to represent
-	 * the entire disk in memory.
-	 */
-	pgcnt_t *page_array;     
-
-	disk_size_t disk_size;   ///< Size of the disk, in bytes (page_count * page_size).
-	disk_size_t free_bytes;  ///< Free space on the disk.
-	
-	/* TODO add other fields. */
-} BattFsSuper;
-
-/**
- * Initialize and mount disk described by
- * \a d.
- * \return false on errors, true otherwise.
- */
-bool battfs_init(struct BattFsSuper *d);
-
-#endif /* FS_BATTFS_H */