mirror of
https://github.com/wiidev/usbloadergx.git
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248 lines
8.9 KiB
C
248 lines
8.9 KiB
C
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// Modified by oggzee
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#ifndef LIBWBFS_H
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#define LIBWBFS_H
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#include "libwbfs_os.h" // this file is provided by the project wanting to compile libwbfs
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#include "wiidisc.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif /* __cplusplus */
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enum {
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WBFS_DEVICE_USB = 1, /* USB device */
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WBFS_DEVICE_SDHC /* SDHC device */
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};
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typedef u32 be32_t;
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typedef u16 be16_t;
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typedef struct wbfs_head
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{
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be32_t magic;
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// parameters copied in the partition for easy dumping, and bug reports
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be32_t n_hd_sec; // total number of hd_sec in this partition
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u8 hd_sec_sz_s; // sector size in this partition
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u8 wbfs_sec_sz_s; // size of a wbfs sec
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u8 padding3[2];
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u8 disc_table[0]; // size depends on hd sector size
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} __attribute( ( packed ) ) wbfs_head_t ;
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typedef struct wbfs_disc_info
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{
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u8 disc_header_copy[0x100];
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be16_t wlba_table[0];
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} wbfs_disc_info_t;
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// WBFS first wbfs_sector structure:
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//
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// -----------
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// | wbfs_head | (hd_sec_sz)
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// -----------
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// | |
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// | disc_info |
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// | |
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// -----------
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// | |
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// | disc_info |
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// | |
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// -----------
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// | |
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// | ... |
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// | |
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// -----------
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// | |
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// | disc_info |
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// | |
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// -----------
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// | |
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// |freeblk_tbl|
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// | |
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// -----------
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//
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// callback definition. Return 1 on fatal error (callback is supposed to make retries until no hopes..)
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typedef int ( *rw_sector_callback_t )( void*fp, u32 lba, u32 count, void*iobuf );
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typedef void ( *progress_callback_t )( s64 status, s64 total );
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typedef struct wbfs_s
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{
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wbfs_head_t *head;
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/* hdsectors, the size of the sector provided by the hosting hard drive */
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u32 hd_sec_sz;
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u8 hd_sec_sz_s; // the power of two of the last number
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u32 n_hd_sec; // the number of hd sector in the wbfs partition
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/* standard wii sector (0x8000 bytes) */
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u32 wii_sec_sz;
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u8 wii_sec_sz_s;
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u32 n_wii_sec;
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u32 n_wii_sec_per_disc;
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/* The size of a wbfs sector */
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u32 wbfs_sec_sz;
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u32 wbfs_sec_sz_s;
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u16 n_wbfs_sec; // this must fit in 16 bit!
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u16 n_wbfs_sec_per_disc; // size of the lookup table
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u32 part_lba;
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/* virtual methods to read write the partition */
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rw_sector_callback_t read_hdsector;
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rw_sector_callback_t write_hdsector;
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void *callback_data;
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u16 max_disc;
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u32 freeblks_lba;
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u32 *freeblks;
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u16 disc_info_sz;
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u8 *tmp_buffer; // pre-allocated buffer for unaligned read
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u32 n_disc_open;
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} wbfs_t;
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typedef struct wbfs_disc_s
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{
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wbfs_t *p;
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wbfs_disc_info_t *header; // pointer to wii header
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int i; // disc index in the wbfs header (disc_table)
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} wbfs_disc_t;
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#define WBFS_MAGIC (('W'<<24)|('B'<<16)|('F'<<8)|('S'))
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/*! @brief open a MSDOS partitionned harddrive. This tries to find a wbfs partition into the harddrive
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@param read_hdsector,write_hdsector: accessors to a harddrive
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@hd_sector_size: size of the hd sector. Can be set to zero if the partition in already initialized
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@num_hd_sector: number of sectors in this disc. Can be set to zero if the partition in already initialized
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@reset: not implemented, This will format the whole harddrive with one wbfs partition that fits the whole disk.
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calls wbfs_error() to have textual meaning of errors
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@return NULL in case of error
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*/
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wbfs_t*wbfs_open_hd( rw_sector_callback_t read_hdsector,
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rw_sector_callback_t write_hdsector,
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void *callback_data,
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int hd_sector_size, int num_hd_sector, int reset );
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/*! @brief open a wbfs partition
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@param read_hdsector,write_hdsector: accessors to the partition
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@hd_sector_size: size of the hd sector. Can be set to zero if the partition in already initialized
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@num_hd_sector: number of sectors in this partition. Can be set to zero if the partition in already initialized
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@partition_lba: The partitio offset if you provided accessors to the whole disc.
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@reset: initialize the partition with an empty wbfs.
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calls wbfs_error() to have textual meaning of errors
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@return NULL in case of error
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*/
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wbfs_t*wbfs_open_partition( rw_sector_callback_t read_hdsector,
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rw_sector_callback_t write_hdsector,
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void *callback_data,
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int hd_sector_size, int num_hd_sector, u32 partition_lba, int reset );
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/*! @brief close a wbfs partition, and sync the metadatas to the disc */
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void wbfs_close( wbfs_t* );
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/*! @brief open a disc inside a wbfs partition use a 6 char discid+vendorid
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@return NULL if discid is not present
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*/
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wbfs_disc_t *wbfs_open_disc( wbfs_t* p, u8 *diskid );
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/*! @brief close a already open disc inside a wbfs partition */
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void wbfs_close_disc( wbfs_disc_t*d );
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u32 wbfs_sector_used( wbfs_t *p, wbfs_disc_info_t *di );
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u32 wbfs_sector_used2( wbfs_t *p, wbfs_disc_info_t *di, u32 *last_blk );
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/*! @brief accessor to the wii disc
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@param d: a pointer to already open disc
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@param offset: an offset inside the disc, *points 32bit words*, allowing to access 16GB data
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@param len: The length of the data to fetch, in *bytes*
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*/
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// offset is pointing 32bit words to address the whole dvd, although len is in bytes
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int wbfs_disc_read( wbfs_disc_t*d, u32 offset, u32 len, u8 *data );
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/*! @return the number of discs inside the partition */
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u32 wbfs_count_discs( wbfs_t*p );
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/*! get the disc info of ith disc inside the partition. It correspond to the first 0x100 bytes of the wiidvd
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http://www.wiibrew.org/wiki/Wiidisc#Header
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@param i: index of the disc inside the partition
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@param header: pointer to 0x100 bytes to write the header
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@size: optional pointer to a 32bit word that will get the size in 32bit words of the DVD taken on the partition.
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*/
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u32 wbfs_get_disc_info( wbfs_t*p, u32 i, u8 *header, int header_size, u32 *size );
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/*! get the number of used block of the partition.
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to be multiplied by p->wbfs_sec_sz (use 64bit multiplication) to have the number in bytes
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*/
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u32 wbfs_count_usedblocks( wbfs_t*p );
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/******************* write access ******************/
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/*! add a wii dvd inside the partition
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@param read_src_wii_disc: a callback to access the wii dvd. offsets are in 32bit, len in bytes!
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@callback_data: private data passed to the callback
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@spinner: a pointer to a function that is regulary called to update a progress bar.
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@sel: selects which partitions to copy.
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@copy_1_1: makes a 1:1 copy, whenever a game would not use the wii disc format, and some data is hidden outside the filesystem.
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*/
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u32 wbfs_add_disc( wbfs_t*p, read_wiidisc_callback_t read_src_wii_disc, void *callback_data,
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progress_callback_t spinner, partition_selector_t sel, int copy_1_1 );
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/*! remove a wiidvd inside a partition */
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u32 wbfs_rm_disc( wbfs_t*p, u8* discid );
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/*! rename a game */
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u32 wbfs_ren_disc( wbfs_t*p, u8* discid, u8* newname );
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/* change ID of a game*/
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u32 wbfs_rID_disc( wbfs_t*p, u8* discid, u8* newID );
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/*! trim the file-system to its minimum size
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This allows to use wbfs as a wiidisc container
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*/
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u32 wbfs_trim( wbfs_t*p );
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/*! extract a disc from the wbfs, unused sectors are just untouched, allowing descent filesystem to only really usefull space to store the disc.
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Even if the filesize is 4.7GB, the disc usage will be less.
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*/
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u32 wbfs_extract_disc( wbfs_disc_t*d, rw_sector_callback_t write_dst_wii_sector, void *callback_data, progress_callback_t spinner );
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/*! extract a file from the wii disc filesystem.
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E.G. Allows to extract the opening.bnr to install a game as a system menu channel
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*/
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int wbfs_extract_file( wbfs_disc_t*d, char *path, void **data );
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// remove some sanity checks
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void wbfs_set_force_mode( int force );
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float wbfs_estimate_disc(
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wbfs_t *p, read_wiidisc_callback_t read_src_wii_disc,
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void *callback_data,
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partition_selector_t sel );
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// compressed and real size
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u32 wbfs_size_disc( wbfs_t*p, read_wiidisc_callback_t read_src_wii_disc,
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void *callback_data, partition_selector_t sel,
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u32 *comp_size, u32 *real_size );
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typedef int ( *_frag_append_t )( void *ff, u32 offset, u32 sector, u32 count );
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int wbfs_get_fragments( wbfs_disc_t *d, _frag_append_t append_fragment, void *callback_data );
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extern wbfs_t wbfs_iso_file;
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u32 wbfs_disc_sector_used( wbfs_disc_t *d, u32 *num_blk );
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int wbfs_iso_file_read( wbfs_disc_t*d, u32 offset, u8 *data, u32 len );
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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