878ba523ac
This library includes various random and minix-specific functions included in the Minix libc. Most of them should be part of libsys, and in general it would be nice to extinguish this library over time.
130 lines
4.6 KiB
C
130 lines
4.6 KiB
C
#ifndef _INCLUDE_TOOLS_H
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#define _INCLUDE_TOOLS_H 1
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/* Constants describing the disk */
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#define SECTOR_SIZE 512
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#define SECTOR_SHIFT 9
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#define RATIO(b) ((b)/SECTOR_SIZE)
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#define ISO_SECTOR_SIZE 2048
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#define ISO_PVD_OFFSET 16
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#define HRATIO (SECTOR_SIZE / HCLICK_SIZE)
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#define PARAMSEC 1 /* sector containing boot parameters */
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#define DSKBASE 0x1E /* floppy disk parameter vector */
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#define DSKPARSIZE 11 /* there are this many bytes of parameters */
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#define ESC '\33' /* escape key */
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#define HEADERSEG 0x0060 /* place for an array of struct exec's */
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#define MINIXSEG 0x0080 /* MINIX loaded here (rounded up to a click) */
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#define BOOTSEG 0x07C0 /* bootstraps are loaded here */
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#define SIGNATURE 0xAA55 /* proper bootstraps have this signature */
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#define SIGNATPOS 510 /* offset within bootblock */
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#define FREESEG 0x0800 /* Memory from FREESEG to cseg is free */
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#define MSEC_PER_TICK 55 /* 18.2 ticks per second */
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/* Scan codes for four different keyboards (from kernel/keyboard.c) */
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#define DUTCH_EXT_SCAN 32 /* 'd' */
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#define OLIVETTI_SCAN 12 /* '=' key on olivetti */
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#define STANDARD_SCAN 13 /* '=' key on IBM */
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#define US_EXT_SCAN 22 /* 'u' */
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/* Other */
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#define ROOT_INO ((ino_t) 1) /* Inode nr of root dir. */
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#define IM_NAME_MAX 63
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/* Variables */
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#ifndef EXTERN
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#define EXTERN extern
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#endif
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typedef struct vector {
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u16_t offset;
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u16_t segment;
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} vector;
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struct image_header {
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char name[IM_NAME_MAX + 1]; /* Null terminated. */
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struct exec process;
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};
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EXTERN vector rem_part; /* boot partition table entry */
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EXTERN u16_t cseg, dseg; /* code and data segment of the boot program */
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EXTERN u32_t runsize; /* size of this program */
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EXTERN u16_t device; /* drive being booted from */
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EXTERN u16_t heads, sectors; /* the drive's number of heads and sectors */
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extern u16_t eqscancode; /* Set by peek/getch() if they see a '=' */
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/* Sticky attributes */
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#define E_SPECIAL 0x01 /* These are known to the program */
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#define E_DEV 0x02 /* The value is a device name */
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#define E_RESERVED 0x04 /* May not be set by user, e.g. scancode */
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#define E_STICKY 0x07 /* Don't go once set */
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/* Volatile attributes */
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#define E_VAR 0x08 /* Variable */
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#define E_FUNCTION 0x10 /* Function definition */
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typedef struct environment {
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struct environment *next;
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char flags;
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char *name; /* name = value */
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char *arg; /* name(arg) {value} */
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char *value;
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char *defval; /* Safehouse for default values */
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} environment;
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/* External variables */
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EXTERN environment *env; /* Lists the environment */
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EXTERN int fsok; /* True if the boot device contains an FS */
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EXTERN u32_t lowsec; /* Offset to the file system on the boot dev */
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#if defined(_MINIX) || defined(__minix) || defined(__ACK__)
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/* Prototypes */
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_PROTOTYPE( off_t r_super, (void));
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_PROTOTYPE( void r_stat, (Ino_t _inum, struct stat *_stp ));
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_PROTOTYPE( ino_t r_readdir, (char *_name ));
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_PROTOTYPE( off_t r_vir2abs, (off_t _virblk ));
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_PROTOTYPE( ino_t r_lookup, (Ino_t _cwd, char *_path ));
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#endif
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#ifdef _MONHEAD
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_PROTOTYPE( void readerr, (off_t _sec, int _err ));
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_PROTOTYPE( int numprefix, (char *_s, char **_ps ));
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_PROTOTYPE( int numeric, (char *_s ));
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_PROTOTYPE( dev_t name2dev, (char *_name ));
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_PROTOTYPE( int delay, (char *_msec ));
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_PROTOTYPE( char *unix_err, (int _err ));
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_PROTOTYPE( void init_cache, (void));
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_PROTOTYPE( void invalidate_cache, (void));
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_PROTOTYPE( char *b_value, (char *_name ));
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_PROTOTYPE( void raw_copy, (int _doff, int _dseg, int _soff, int _sseg,
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int _count));
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_PROTOTYPE( void raw_clear, (int _off, int _seg, int _count));
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_PROTOTYPE( void bootstrap, (int _device, int _partoff, int _partseg));
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_PROTOTYPE( long a2l, (char *_a ));
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_PROTOTYPE( char *ul2a, (u32_t _n ));
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_PROTOTYPE( char *u2a, (int _n1 ));
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/* Functions defined in monhead.s and usable by other files. */
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_PROTOTYPE( void reset_video, (int color));
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_PROTOTYPE( int dev_geometry, (void));
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_PROTOTYPE( u16_t get_ext_memsize, (void));
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_PROTOTYPE( u16_t get_low_memsize, (void));
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_PROTOTYPE( u16_t get_processor, (void));
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_PROTOTYPE( u32_t get_tick, (void));
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_PROTOTYPE( u16_t get_video, (void));
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_PROTOTYPE( u16_t get_word, (int _off, int _seg));
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_PROTOTYPE( int getchar, (void));
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_PROTOTYPE( void minix, (void));
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_PROTOTYPE( void minix86, (int _kcs, int _kds, char *_bpar, int _psize));
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_PROTOTYPE( void minix386, (int _kcs, int _kds, char *_bpar, int _psize));
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_PROTOTYPE( int peekchar, (void));
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_PROTOTYPE( void put_word, (int _off, int _seg, int _word));
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_PROTOTYPE( int putchar, (char _c));
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_PROTOTYPE( int readsectors, (int _off, int _seg, off_t _adr, int _ct));
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_PROTOTYPE( void reboot, (void));
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_PROTOTYPE( void relocate, (void));
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_PROTOTYPE( int writesectors, (int _off, int _seg, off_t _adr, int _ct));
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#endif
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#endif
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