WebSVN – HelenOS – Diff – /branches/dynload/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 <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 uint8_t *plb_ro;
 
extern int block_read(int, unsigned long, void *);
 
extern void fat_lookup(ipc_callid_t, ipc_call_t *);
 
#endif
 
/**
 * @}
 */
 

Rev 2628	Rev 2629
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 <atomic.h>	37	#include <atomic.h>
38	#include <sys/types.h>	38	#include <sys/types.h>
39	#include <bool.h>	39	#include <bool.h>
40		40
41	#define dprintf(...) printf(__VA_ARGS__)	41	#define dprintf(...) printf(__VA_ARGS__)
42		42
43	typedef struct {	43	typedef struct {
44	uint8_t ji[3]; /*< Jump instruction. /	44	uint8_t ji[3]; /*< Jump instruction. /
45	uint8_t oem_name[8];	45	uint8_t oem_name[8];
46	/* BIOS Parameter Block */	46	/* BIOS Parameter Block */
47	uint16_t bps; /*< Bytes per sector. /	47	uint16_t bps; /*< Bytes per sector. /
48	uint8_t spc; /*< Sectors per cluster. /	48	uint8_t spc; /*< Sectors per cluster. /
49	uint16_t rsc; /*< Reserved sector count. /	49	uint16_t rsc; /*< Reserved sector count. /
50	uint8_t fatcnt; /*< Number of FATs. /	50	uint8_t fatcnt; /*< Number of FATs. /
51	uint16_t root_ent_max; /**< Maximum number of root directory	51	uint16_t root_ent_max; /**< Maximum number of root directory
52	entries. */	52	entries. */
53	uint16_t totsec; /*< Total sectors. /	53	uint16_t totsec; /*< Total sectors. /
54	uint8_t mdesc; /*< Media descriptor. /	54	uint8_t mdesc; /*< Media descriptor. /
55	uint16_t sec_per_fat; /*< Sectors per FAT12/FAT16. /	55	uint16_t sec_per_fat; /*< Sectors per FAT12/FAT16. /
56	uint16_t sec_per_track; /*< Sectors per track. /	56	uint16_t sec_per_track; /*< Sectors per track. /
57	uint16_t headcnt; /*< Number of heads. /	57	uint16_t headcnt; /*< Number of heads. /
58	uint32_t hidden_sec; /*< Hidden sectors. /	58	uint32_t hidden_sec; /*< Hidden sectors. /
59	uint32_t total_sec; /*< Total sectors. /	59	uint32_t total_sec; /*< Total sectors. /
60		60
61	union {	61	union {
62	struct {	62	struct {
63	/* FAT12/FAT16 only: Extended BIOS Parameter Block */	63	/* FAT12/FAT16 only: Extended BIOS Parameter Block */
64	/** Physical drive number. */	64	/** Physical drive number. */
65	uint8_t pdn;	65	uint8_t pdn;
66	uint8_t reserved;	66	uint8_t reserved;
67	/** Extended boot signature. */	67	/** Extended boot signature. */
68	uint8_t ebs;	68	uint8_t ebs;
69	/** Serial number. */	69	/** Serial number. */
70	uint32_t id;	70	uint32_t id;
71	/** Volume label. */	71	/** Volume label. */
72	uint8_t label[11];	72	uint8_t label[11];
73	/** FAT type. */	73	/** FAT type. */
74	uint8_t type[8];	74	uint8_t type[8];
75	/** Boot code. */	75	/** Boot code. */
76	uint8_t boot_code[448];	76	uint8_t boot_code[448];
77	/** Boot sector signature. */	77	/** Boot sector signature. */
78	uint16_t signature;	78	uint16_t signature;
79	} __attribute__ ((packed));	79	} __attribute__ ((packed));
80	struct {	80	struct {
81	/* FAT32 only */	81	/* FAT32 only */
82	/** Sectors per FAT. */	82	/** Sectors per FAT. */
83	uint32_t sectors_per_fat;	83	uint32_t sectors_per_fat;
84	/** FAT flags. */	84	/** FAT flags. */
85	uint16_t flags;	85	uint16_t flags;
86	/** Version. */	86	/** Version. */
87	uint16_t version;	87	uint16_t version;
88	/** Cluster number of root directory. */	88	/** Cluster number of root directory. */
89	uint32_t root_cluster;	89	uint32_t root_cluster;
90	/** Sector number of file system information sector. */	90	/** Sector number of file system information sector. */
91	uint16_t fsinfo_sec;	91	uint16_t fsinfo_sec;
92	/** Sector number of boot sector copy. */	92	/** Sector number of boot sector copy. */
93	uint16_t bscopy_sec;	93	uint16_t bscopy_sec;
94	uint8_t reserved1[12];	94	uint8_t reserved1[12];
95	/** Physical drive number. */	95	/** Physical drive number. */
96	uint8_t pdn;	96	uint8_t pdn;
97	uint8_t reserved2;	97	uint8_t reserved2;
98	/** Extended boot signature. */	98	/** Extended boot signature. */
99	uint8_t ebs;	99	uint8_t ebs;
100	/** Serial number. */	100	/** Serial number. */
101	uint32_t id;	101	uint32_t id;
102	/** Volume label. */	102	/** Volume label. */
103	uint8_t label;	103	uint8_t label;
104	/** FAT type. */	104	/** FAT type. */
105	uint8_t type[8];	105	uint8_t type[8];
106	/** Boot code. */	106	/** Boot code. */
107	uint8_t boot_code[420];	107	uint8_t boot_code[420];
108	/** Signature. */	108	/** Signature. */
109	uint16_t signature;	109	uint16_t signature;
110	} __attribute__ ((packed));	110	} __attribute__ ((packed));
111	};	111	};
112	} fat_bs_t __attribute__ ((packed));	112	} __attribute__ ((packed)) fat_bs_t;
-		113
-		114	typedef struct {
-		115	uint8_t name[8];
-		116	uint8_t ext[3];
-		117	uint8_t attr;
-		118	uint8_t reserved;
-		119	uint8_t ctime_fine;
-		120	uint16_t ctime;
-		121	uint16_t cdate;
-		122	uint16_t adate;
-		123	union {
-		124	uint16_t eaidx; /* FAT12/FAT16 */
-		125	uint16_t firstc_hi; /* FAT32 */
-		126	};
-		127	uint16_t mtime;
-		128	uint16_t mdate;
-		129	union {
-		130	uint16_t firstc; /* FAT12/FAT16 */
-		131	uint16_t firstc_lo; /* FAT32 */
-		132	};
-		133	uint32_t size;
-		134	} __attribute__ ((packed)) fat_dentry_t;
113		135
114	extern uint8_t *plb_ro;	136	extern uint8_t *plb_ro;
115		137
116	extern int block_read(int, unsigned long, void *);	138	extern int block_read(int, unsigned long, void *);
117		139
118	extern void fat_lookup(ipc_callid_t, ipc_call_t *);	140	extern void fat_lookup(ipc_callid_t, ipc_call_t *);
119		141
120	#endif	142	#endif
121		143
122	/**	144	/**
123	* @}	145	* @}
124	*/	146	*/
125		147

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(root)/branches/dynload/uspace/srv/fs/fat/fat.h @ 3009 – Rev 2628 → 2629