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/*
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/*
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 * Copyright (c) 2007 Jakub Jermar
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 * Copyright (c) 2008 Jakub Jermar
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 * All rights reserved.
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 * All rights reserved.
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 *
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * modification, are permitted provided that the following conditions
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 * are met:
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 * are met:
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#include <ipc/ipc.h>
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#include <ipc/ipc.h>
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#include <libfs.h>
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#include <libfs.h>
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#include <atomic.h>
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#include <atomic.h>
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#include <sys/types.h>
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#include <sys/types.h>
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#include <bool.h>
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#include <bool.h>
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#include "../../vfs/vfs.h"
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#define dprintf(...)    printf(__VA_ARGS__)
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#define dprintf(...)    printf(__VA_ARGS__)
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typedef struct {
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typedef struct {
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    uint8_t     ji[3];      /**< Jump instruction. */
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    uint8_t     ji[3];      /**< Jump instruction. */
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    uint8_t     oem_name[8];
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    uint8_t     oem_name[8];
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    /* BIOS Parameter Block */
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    /* BIOS Parameter Block */
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    uint16_t    bps;        /**< Bytes per sector. */
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    uint16_t    bps;        /**< Bytes per sector. */
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    uint8_t     spc;        /**< Sectors per cluster. */
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    uint8_t     spc;        /**< Sectors per cluster. */
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    uint16_t    rsc;        /**< Reserved sector count. */
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    uint16_t    rscnt;      /**< Reserved sector count. */
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    uint8_t     fatcnt;     /**< Number of FATs. */
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    uint8_t     fatcnt;     /**< Number of FATs. */
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    uint16_t    root_ent_max;   /**< Maximum number of root directory
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    uint16_t    root_ent_max;   /**< Maximum number of root directory
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                         entries. */
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                         entries. */
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    uint16_t    totsec;     /**< Total sectors. */
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    uint16_t    totsec16;   /**< Total sectors. 16-bit version. */
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    uint8_t     mdesc;      /**< Media descriptor. */
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    uint8_t     mdesc;      /**< Media descriptor. */
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    uint16_t    sec_per_fat;    /**< Sectors per FAT12/FAT16. */
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    uint16_t    sec_per_fat;    /**< Sectors per FAT12/FAT16. */
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    uint16_t    sec_per_track;  /**< Sectors per track. */
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    uint16_t    sec_per_track;  /**< Sectors per track. */
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    uint16_t    headcnt;    /**< Number of heads. */
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    uint16_t    headcnt;    /**< Number of heads. */
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    uint32_t    hidden_sec; /**< Hidden sectors. */
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    uint32_t    hidden_sec; /**< Hidden sectors. */
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    uint32_t    total_sec;  /**< Total sectors. */
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    uint32_t    totseci32;  /**< Total sectors. 32-bit version. */
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    union {
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    union {
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        struct {
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        struct {
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            /* FAT12/FAT16 only: Extended BIOS Parameter Block */
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            /* FAT12/FAT16 only: Extended BIOS Parameter Block */
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            /** Physical drive number. */
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            /** Physical drive number. */
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            /** Extended boot signature. */
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            /** Extended boot signature. */
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            uint8_t     ebs;
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            uint8_t     ebs;
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            /** Serial number. */
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            /** Serial number. */
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            uint32_t    id;
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            uint32_t    id;
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            /** Volume label. */
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            /** Volume label. */
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            uint8_t     label;
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            uint8_t     label[11];
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            /** FAT type. */
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            /** FAT type. */
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            uint8_t     type[8];
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            uint8_t     type[8];
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            /** Boot code. */
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            /** Boot code. */
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            uint8_t     boot_code[420];
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            uint8_t     boot_code[420];
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            /** Signature. */
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            /** Signature. */
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        uint16_t    firstc_lo;  /* FAT32 */
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        uint16_t    firstc_lo;  /* FAT32 */
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    };
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    };
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    uint32_t    size;
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    uint32_t    size;
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} __attribute__ ((packed)) fat_dentry_t;
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} __attribute__ ((packed)) fat_dentry_t;
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typedef enum {
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    FAT_DIRECTORY,
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    FAT_FILE
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} fat_node_type_t;
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/** FAT in-core node. */
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typedef struct {
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    fat_node_type_t     type;
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    /** VFS index is the node's first allocated cluster. */
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    fs_index_t      index;
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    dev_handle_t        dev_handle;
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    /** FAT in-core node hash table link. */
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    link_t          fin_link;
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    size_t          size;
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    unsigned        lnkcnt;
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} fat_node_t;
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extern fs_reg_t fat_reg;
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extern fs_reg_t fat_reg;
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extern void fat_lookup(ipc_callid_t, ipc_call_t *);
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extern void fat_lookup(ipc_callid_t, ipc_call_t *);
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#endif
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#endif