WebSVN – HelenOS – Diff – /tags/0.3.0/uspace/srv/fs/fat/fat.h


/*
 * Copyright (c) 2007 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup fs
 * @{
 */
 
#ifndef FAT_FAT_H_
#define FAT_FAT_H_
 
#include <ipc/ipc.h>
#include <libfs.h>
#include <atomic.h>
#include <sys/types.h>
#include <bool.h>
 
#define dprintf(...)    printf(__VA_ARGS__)
 
typedef struct {
    uint8_t     ji[3];      /**< Jump instruction. */
    uint8_t     oem_name[8];
    /* BIOS Parameter Block */
    uint16_t    bps;        /**< Bytes per sector. */
    uint8_t     spc;        /**< Sectors per cluster. */
    uint16_t    rsc;        /**< Reserved sector count. */
    uint8_t     fatcnt;     /**< Number of FATs. */
    uint16_t    root_ent_max;   /**< Maximum number of root directory
                         entries. */
    uint16_t    totsec;     /**< Total sectors. */
    uint8_t     mdesc;      /**< Media descriptor. */
    uint16_t    sec_per_fat;    /**< Sectors per FAT12/FAT16. */
    uint16_t    sec_per_track;  /**< Sectors per track. */
    uint16_t    headcnt;    /**< Number of heads. */
    uint32_t    hidden_sec; /**< Hidden sectors. */
    uint32_t    total_sec;  /**< Total sectors. */
 
    union {
        struct {
            /* FAT12/FAT16 only: Extended BIOS Parameter Block */
            /** Physical drive number. */
            uint8_t     pdn;
            uint8_t     reserved;
            /** Extended boot signature. */
            uint8_t     ebs;
            /** Serial number. */
            uint32_t    id;
            /** Volume label. */
            uint8_t     label[11];
            /** FAT type. */
            uint8_t     type[8];
            /** Boot code. */
            uint8_t     boot_code[448];
            /** Boot sector signature. */
            uint16_t    signature;
        } __attribute__ ((packed));
        struct {
            /* FAT32 only */
            /** Sectors per FAT. */
            uint32_t    sectors_per_fat;
            /** FAT flags. */
            uint16_t    flags;
            /** Version. */
            uint16_t    version;
            /** Cluster number of root directory. */
            uint32_t    root_cluster;
            /** Sector number of file system information sector. */
            uint16_t    fsinfo_sec;
            /** Sector number of boot sector copy. */
            uint16_t    bscopy_sec;
            uint8_t     reserved1[12];
            /** Physical drive number. */
            uint8_t     pdn;
            uint8_t     reserved2;
            /** Extended boot signature. */
            uint8_t     ebs;
            /** Serial number. */
            uint32_t    id;
            /** Volume label. */
            uint8_t     label;
            /** FAT type. */
            uint8_t     type[8];
            /** Boot code. */
            uint8_t     boot_code[420];
            /** Signature. */
            uint16_t    signature;
        } __attribute__ ((packed));
    };
} __attribute__ ((packed)) fat_bs_t;
 
typedef struct {
    uint8_t     name[8];
    uint8_t     ext[3];
    uint8_t     attr;
    uint8_t     reserved;
    uint8_t     ctime_fine;
    uint16_t    ctime;
    uint16_t    cdate;
    uint16_t    adate;
    union {
        uint16_t    eaidx;      /* FAT12/FAT16 */
        uint16_t    firstc_hi;  /* FAT32 */
    };
    uint16_t    mtime;
    uint16_t    mdate;
    union {
        uint16_t    firstc;     /* FAT12/FAT16 */
        uint16_t    firstc_lo;  /* FAT32 */
    };
    uint32_t    size;
} __attribute__ ((packed)) fat_dentry_t;
 
extern fs_reg_t fat_reg;
 
extern void fat_lookup(ipc_callid_t, ipc_call_t *);
 
#endif
 
/**
 * @}
 */
 

Rev 2644	Rev 2782
1	/*	1	/*
2	* Copyright (c) 2007 Jakub Jermar	2	* Copyright (c) 2007 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup fs	29	/** @addtogroup fs
30	* @{	30	* @{
31	*/	31	*/
32		32
33	#ifndef FAT_FAT_H_	33	#ifndef FAT_FAT_H_
34	#define FAT_FAT_H_	34	#define FAT_FAT_H_
35		35
36	#include <ipc/ipc.h>	36	#include <ipc/ipc.h>
37	#include <libfs.h>	37	#include <libfs.h>
38	#include <atomic.h>	38	#include <atomic.h>
39	#include <sys/types.h>	39	#include <sys/types.h>
40	#include <bool.h>	40	#include <bool.h>
41		41
42	#define dprintf(...) printf(__VA_ARGS__)	42	#define dprintf(...) printf(__VA_ARGS__)
43		43
44	typedef struct {	44	typedef struct {
45	uint8_t ji[3]; /*< Jump instruction. /	45	uint8_t ji[3]; /*< Jump instruction. /
46	uint8_t oem_name[8];	46	uint8_t oem_name[8];
47	/* BIOS Parameter Block */	47	/* BIOS Parameter Block */
48	uint16_t bps; /*< Bytes per sector. /	48	uint16_t bps; /*< Bytes per sector. /
49	uint8_t spc; /*< Sectors per cluster. /	49	uint8_t spc; /*< Sectors per cluster. /
50	uint16_t rsc; /*< Reserved sector count. /	50	uint16_t rsc; /*< Reserved sector count. /
51	uint8_t fatcnt; /*< Number of FATs. /	51	uint8_t fatcnt; /*< Number of FATs. /
52	uint16_t root_ent_max; /**< Maximum number of root directory	52	uint16_t root_ent_max; /**< Maximum number of root directory
53	entries. */	53	entries. */
54	uint16_t totsec; /*< Total sectors. /	54	uint16_t totsec; /*< Total sectors. /
55	uint8_t mdesc; /*< Media descriptor. /	55	uint8_t mdesc; /*< Media descriptor. /
56	uint16_t sec_per_fat; /*< Sectors per FAT12/FAT16. /	56	uint16_t sec_per_fat; /*< Sectors per FAT12/FAT16. /
57	uint16_t sec_per_track; /*< Sectors per track. /	57	uint16_t sec_per_track; /*< Sectors per track. /
58	uint16_t headcnt; /*< Number of heads. /	58	uint16_t headcnt; /*< Number of heads. /
59	uint32_t hidden_sec; /*< Hidden sectors. /	59	uint32_t hidden_sec; /*< Hidden sectors. /
60	uint32_t total_sec; /*< Total sectors. /	60	uint32_t total_sec; /*< Total sectors. /
61		61
62	union {	62	union {
63	struct {	63	struct {
64	/* FAT12/FAT16 only: Extended BIOS Parameter Block */	64	/* FAT12/FAT16 only: Extended BIOS Parameter Block */
65	/** Physical drive number. */	65	/** Physical drive number. */
66	uint8_t pdn;	66	uint8_t pdn;
67	uint8_t reserved;	67	uint8_t reserved;
68	/** Extended boot signature. */	68	/** Extended boot signature. */
69	uint8_t ebs;	69	uint8_t ebs;
70	/** Serial number. */	70	/** Serial number. */
71	uint32_t id;	71	uint32_t id;
72	/** Volume label. */	72	/** Volume label. */
73	uint8_t label[11];	73	uint8_t label[11];
74	/** FAT type. */	74	/** FAT type. */
75	uint8_t type[8];	75	uint8_t type[8];
76	/** Boot code. */	76	/** Boot code. */
77	uint8_t boot_code[448];	77	uint8_t boot_code[448];
78	/** Boot sector signature. */	78	/** Boot sector signature. */
79	uint16_t signature;	79	uint16_t signature;
80	} __attribute__ ((packed));	80	} __attribute__ ((packed));
81	struct {	81	struct {
82	/* FAT32 only */	82	/* FAT32 only */
83	/** Sectors per FAT. */	83	/** Sectors per FAT. */
84	uint32_t sectors_per_fat;	84	uint32_t sectors_per_fat;
85	/** FAT flags. */	85	/** FAT flags. */
86	uint16_t flags;	86	uint16_t flags;
87	/** Version. */	87	/** Version. */
88	uint16_t version;	88	uint16_t version;
89	/** Cluster number of root directory. */	89	/** Cluster number of root directory. */
90	uint32_t root_cluster;	90	uint32_t root_cluster;
91	/** Sector number of file system information sector. */	91	/** Sector number of file system information sector. */
92	uint16_t fsinfo_sec;	92	uint16_t fsinfo_sec;
93	/** Sector number of boot sector copy. */	93	/** Sector number of boot sector copy. */
94	uint16_t bscopy_sec;	94	uint16_t bscopy_sec;
95	uint8_t reserved1[12];	95	uint8_t reserved1[12];
96	/** Physical drive number. */	96	/** Physical drive number. */
97	uint8_t pdn;	97	uint8_t pdn;
98	uint8_t reserved2;	98	uint8_t reserved2;
99	/** Extended boot signature. */	99	/** Extended boot signature. */
100	uint8_t ebs;	100	uint8_t ebs;
101	/** Serial number. */	101	/** Serial number. */
102	uint32_t id;	102	uint32_t id;
103	/** Volume label. */	103	/** Volume label. */
104	uint8_t label;	104	uint8_t label;
105	/** FAT type. */	105	/** FAT type. */
106	uint8_t type[8];	106	uint8_t type[8];
107	/** Boot code. */	107	/** Boot code. */
108	uint8_t boot_code[420];	108	uint8_t boot_code[420];
109	/** Signature. */	109	/** Signature. */
110	uint16_t signature;	110	uint16_t signature;
111	} __attribute__ ((packed));	111	} __attribute__ ((packed));
112	};	112	};
113	} __attribute__ ((packed)) fat_bs_t;	113	} __attribute__ ((packed)) fat_bs_t;
114		114
115	typedef struct {	115	typedef struct {
116	uint8_t name[8];	116	uint8_t name[8];
117	uint8_t ext[3];	117	uint8_t ext[3];
118	uint8_t attr;	118	uint8_t attr;
119	uint8_t reserved;	119	uint8_t reserved;
120	uint8_t ctime_fine;	120	uint8_t ctime_fine;
121	uint16_t ctime;	121	uint16_t ctime;
122	uint16_t cdate;	122	uint16_t cdate;
123	uint16_t adate;	123	uint16_t adate;
124	union {	124	union {
125	uint16_t eaidx; /* FAT12/FAT16 */	125	uint16_t eaidx; /* FAT12/FAT16 */
126	uint16_t firstc_hi; /* FAT32 */	126	uint16_t firstc_hi; /* FAT32 */
127	};	127	};
128	uint16_t mtime;	128	uint16_t mtime;
129	uint16_t mdate;	129	uint16_t mdate;
130	union {	130	union {
131	uint16_t firstc; /* FAT12/FAT16 */	131	uint16_t firstc; /* FAT12/FAT16 */
132	uint16_t firstc_lo; /* FAT32 */	132	uint16_t firstc_lo; /* FAT32 */
133	};	133	};
134	uint32_t size;	134	uint32_t size;
135	} __attribute__ ((packed)) fat_dentry_t;	135	} __attribute__ ((packed)) fat_dentry_t;
136		136
137	extern fs_reg_t fat_reg;	137	extern fs_reg_t fat_reg;
138		138
139	extern void fat_lookup(ipc_callid_t, ipc_call_t *);	139	extern void fat_lookup(ipc_callid_t, ipc_call_t *);
140		140
141	#endif	141	#endif
142		142
143	/**	143	/**
144	* @}	144	* @}
145	*/	145	*/
146		146

Subversion Repositories HelenOS

(root)/tags/0.3.0/uspace/srv/fs/fat/fat.h – Rev 2644 → 2782