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FreeDOS/kernel/globals.h
Bart Oldeman b6d423a1b3 Ran all .c and .h files through "indent" 
git-svn-id: https://svn.code.sf.net/p/freedos/svn/kernel/trunk@329 6ac86273-5f31-0410-b378-82cca8765d1b
2001-11-18 14:01:12 +00:00

587 lines
20 KiB
C
Raw Blame History

/****************************************************************/
/* */
/* globals.h */
/* DOS-C */
/* */
/* Global data structures and declarations */
/* */
/* Copyright (c) 1995, 1996 */
/* Pasquale J. Villani */
/* All Rights Reserved */
/* */
/* This file is part of DOS-C. */
/* */
/* DOS-C is free software; you can redistribute it and/or */
/* modify it under the terms of the GNU General Public License */
/* as published by the Free Software Foundation; either version */
/* 2, or (at your option) any later version. */
/* */
/* DOS-C is distributed in the hope that it will be useful, but */
/* WITHOUT ANY WARRANTY; without even the implied warranty of */
/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */
/* the GNU General Public License for more details. */
/* */
/* You should have received a copy of the GNU General Public */
/* License along with DOS-C; see the file COPYING. If not, */
/* write to the Free Software Foundation, 675 Mass Ave, */
/* Cambridge, MA 02139, USA. */
/****************************************************************/
#ifdef VERSION_STRINGS
#ifdef MAIN
static BYTE *Globals_hRcsId =
"$Id$";
#endif
#endif
#include "device.h"
#include "mcb.h"
#include "pcb.h"
#include "date.h"
#include "time.h"
#include "fat.h"
#include "fcb.h"
#include "tail.h"
#include "process.h"
#include "dcb.h"
#include "sft.h"
#include "cds.h"
#include "exe.h"
#include "fnode.h"
#include "dirmatch.h"
#include "file.h"
#include "clock.h"
#include "kbd.h"
#include "error.h"
#include "version.h"
#include "network.h"
#include "config.h"
#include "buffer.h"
#include "xstructs.h"
/* JPP: for testing/debuging disk IO */
/*#define DISPLAY_GETBLOCK */
/* */
/* Convience switch for maintaining variables in a single location */
/* */
#ifdef MAIN
#define GLOBAL
#else
#define GLOBAL extern
#endif
/* */
/* Convience definitions of TRUE and FALSE */
/* */
#ifndef TRUE
#define TRUE (1)
#endif
#ifndef FALSE
#define FALSE (0)
#endif
/* */
/* Constants and macros */
/* */
/* Defaults and limits - System wide */
#define PARSE_MAX MAX_CDSPATH /* maximum # of bytes in path */
#define NAMEMAX PARSE_MAX /* Maximum path for CDS */
/* internal error from failure or aborted operation */
#define ERROR -1
#define OK 0
/* internal transfer direction flags */
#define XFR_READ 1
#define XFR_WRITE 2
#define RDONLY 0
#define WRONLY 1
#define RDWR 2
/* special ascii code equates */
#define SPCL 0x00
#define CTL_C 0x03
#define CTL_F 0x06
#define BELL 0x07
#define BS 0x08
#define HT 0x09
#define LF 0x0a
#define CR 0x0d
#define CTL_P 0x10
#define CTL_Q 0x11
#define CTL_S 0x13
#define CTL_Z 0x1a
#define ESC 0x1b
#define CTL_BS 0x7f
#define F1 0x3b
#define F3 0x3d
#define LEFT 0x4b
#define RIGHT 0x4d
/* Blockio constants */
#define DSKWRITE 1 /* dskxfr function parameters */
#define DSKREAD 2
#define DSKWRITEINT26 3
#define DSKREADINT25 4
/* FAT cluster special flags */
#define FREE 0x000
#ifdef WITHFAT32
#define LONG_LAST_CLUSTER 0x0FFFFFFFl
#define LONG_BAD 0x0FFFFFF7l
#else
#define LONG_LAST_CLUSTER 0xFFFF
#define LONG_BAD 0xFFF8
#endif
#define MASK16 0xFFF8
#define BAD16 0xFFF0
#define MASK12 0xFF8
#define BAD12 0xFF0
/* Keyboard buffer maximum size */
#ifdef LINESIZE
#undef LINESIZE
#endif
#define LINESIZE KBD_MAXLENGTH
/* NLS character table type */
typedef BYTE *UPMAP;
/* */
/* External Assembly variables */
/* */
extern struct dhdr
FAR clk_dev, /* Clock device driver */
FAR con_dev, /* Console device driver */
FAR prn_dev, /* Generic printer device driver */
FAR aux_dev, /* Generic aux device driver */
FAR blk_dev; /* Block device (Disk) driver */
extern UWORD ram_top; /* How much ram in Kbytes */
extern COUNT *error_tos, /* error stack */
disk_api_tos, /* API handler stack - disk fns */
char_api_tos; /* API handler stack - char fns */
extern BYTE FAR _InitTextStart; /* first available byte of ram */
extern BYTE FAR _HMATextAvailable, /* first byte of available CODE area */
FAR _HMATextStart[], /* first byte of HMAable CODE area */
FAR _HMATextEnd[]; /* and the last byte of it */
extern
BYTE DosLoadedInHMA; /* if InitHMA has moved DOS up */
extern struct ClockRecord
ClkRecord;
/* */
/* Global variables */
/* */
GLOBAL BYTE os_major, /* major version number */
os_minor, /* minor version number */
rev_number /* minor version number */
#ifdef MAIN
= REV_NUMBER,
#else
,
#endif
version_flags /* minor version number */
#ifdef MAIN
= 0;
#else
;
#endif
#ifdef DEBUG
GLOBAL WORD bDumpRegs
#ifdef MAIN
= FALSE;
#else
;
#endif
GLOBAL WORD bDumpRdWrParms
#ifdef MAIN
= FALSE;
#else
;
#endif
#endif
#if 0 /* defined in MAIN.C now to save low memory */
GLOBAL BYTE copyright[] =
"(C) Copyright 1995-2001 Pasquale J. Villani and The FreeDOS Project.\n"
"All Rights Reserved. This is free software and comes with ABSOLUTELY NO\n"
"WARRANTY; you can redistribute it and/or modify it under the terms of the\n"
"GNU General Public License as published by the Free Software Foundation;\n"
"either version 2, or (at your option) any later version.\n";
#endif
GLOBAL BYTE os_release[]
#ifdef MAIN
#if 0
= "DOS-C version %d.%d Beta %d [FreeDOS Release] (Build %d).\n"
#endif
= "FreeDOS kernel version " KERNEL_VERSION_STRING
" (Build " KERNEL_BUILD_STRING ") [" __DATE__ " " __TIME__ "]\n"
#if 0
"For technical information and description of the DOS-C operating system\n\
consult \"FreeDOS Kernel\" by Pat Villani, published by Miller\n\
Freeman Publishing, Lawrence KS, USA (ISBN 0-87930-436-7).\n\
\n"
#endif
#endif
;
/* Globally referenced variables - WARNING: ORDER IS DEFINED IN */
/* KERNAL.ASM AND MUST NOT BE CHANGED. DO NOT CHANGE ORDER BECAUSE THEY */
/* ARE DOCUMENTED AS UNDOCUMENTED (?) AND HAVE MANY PROGRAMS AND TSR'S */
/* ACCESSING THEM */
extern UWORD NetBios;
extern BYTE *net_name;
extern BYTE net_set_count;
extern BYTE NetDelay, NetRetry;
extern UWORD first_mcb, /* Start of user memory */
UMB_top, umb_start, uppermem_root; /* Start of umb chain ? */
extern struct dpb
FAR *DPBp; /* First drive Parameter Block */
extern sfttbl FAR * sfthead; /* System File Table head */
extern struct dhdr
FAR *clock, /* CLOCK$ device */
FAR * syscon; /* console device */
extern WORD maxbksize; /* Number of Drives in system */
extern struct buffer
FAR *firstbuf; /* head of buffers linked list */
extern cdstbl FAR * CDSp; /* Current Directory Structure */
extern
struct cds FAR *current_ldt;
extern LONG current_filepos; /* current file position */
extern sfttbl FAR * FCBp; /* FCB table pointer */
extern WORD nprotfcb; /* number of protected fcbs */
extern UBYTE nblkdev, /* number of block devices */
lastdrive, /* value of last drive */
uppermem_link, /* UMB Link flag */
PrinterEcho; /* Printer Echo Flag */
extern UWORD LoL_nbuffers; /* Number of buffers */
extern struct dhdr
nul_dev;
extern UBYTE mem_access_mode; /* memory allocation scheme */
extern BYTE ErrorMode, /* Critical error flag */
InDOS, /* In DOS critical section */
OpenMode, /* File Open Attributes */
SAttr, /* Attrib Mask for Dir Search */
dosidle_flag, Server_Call, CritErrLocus, CritErrAction, CritErrClass, VgaSet, njoined; /* number of joined devices */
extern UWORD Int21AX;
extern COUNT CritErrCode;
extern BYTE FAR *CritErrDev;
extern struct dirent
SearchDir;
extern struct {
COUNT nDrive;
BYTE szName[FNAME_SIZE + 1];
BYTE szExt[FEXT_SIZE + 1];
} FcbSearchBuffer;
extern struct /* Path name parsing buffer */
{
BYTE _PriPathName[128];
} _PriPathBuffer;
extern struct {
BYTE _fname[FNAME_SIZE];
BYTE _fext[FEXT_SIZE + 1]; /* space for 0 */
} szNames;
#define PriPathName _PriPathBuffer._PriPathName
#define szDirName TempCDS.cdsCurrentPath
#define szFileName szNames._fname
#define szFileExt szNames._fext
extern struct /* Alternate path name parsing buffer */
{
BYTE _SecPathName[128];
} _SecPathBuffer;
#define SecPathName _SecPathBuffer._SecPathName
extern UWORD wAttr;
extern BYTE default_drive; /* default drive for dos */
extern BYTE TempBuffer[], /* Temporary general purpose buffer */
FAR internal_data[], /* sda areas */
FAR swap_always[], /* " " */
FAR swap_indos[], /* " " */
tsr, /* true if program is TSR */
break_flg, /* true if break was detected */
break_ena, /* break enabled flag */
FAR * dta; /* Disk transfer area (kludge) */
extern seg cu_psp; /* current psp segment */
extern iregs FAR * user_r; /* User registers for int 21h call */
extern struct dirent /* Temporary directory entry */
DirEntBuffer;
extern request /* I/O Request packets */
CharReqHdr, IoReqHdr, MediaReqHdr;
extern fcb FAR * lpFcb; /* Pointer to users fcb */
extern sft FAR * lpCurSft;
extern BYTE verify_ena, /* verify enabled flag */
switchar, /* switch char */
return_mode, /* Process termination rets */
return_code; /* " " " */
extern BYTE BootDrive, /* Drive we came up from */
scr_pos; /* screen position for bs, ht, etc */
/*extern WORD
NumFloppies; !!*//* How many floppies we have */
extern keyboard kb_buf;
extern struct cds
TempCDS;
/* start of uncontrolled variables */
GLOBAL seg RootPsp; /* Root process -- do not abort */
/* don't know what it should do, but its no longer in use TE
GLOBAL struct f_node
*pDirFileNode;
*/
#ifdef DEBUG
GLOBAL iregs error_regs; /* registers for dump */
GLOBAL WORD dump_regs; /* dump registers of bad call */
#endif
GLOBAL f_node_ptr f_nodes; /* pointer to the array */
GLOBAL UWORD f_nodes_cnt; /* number of allocated f_nodes */
/*!! GLOBAL iregs
FAR * ustackp, /* user stack */
/*!! FAR * kstackp; *//* kernel stack */
/* */
/* Function prototypes - automatically generated */
/* */
#include "proto.h"
/* Process related functions - not under automatic generation. */
/* Typically, these are in ".asm" files. */
VOID FAR ASMCFUNC cpm_entry(VOID)
/*INRPT FAR handle_break(VOID) */ ;
VOID enable(VOID), disable(VOID);
COUNT
ASMCFUNC CriticalError(COUNT nFlag, COUNT nDrive, COUNT nError,
struct dhdr FAR * lpDevice);
#ifdef PROTO
VOID FAR ASMCFUNC CharMapSrvc(VOID);
VOID FAR ASMCFUNC set_stack(VOID);
VOID FAR ASMCFUNC restore_stack(VOID);
WORD ASMCFUNC execrh(request FAR *, struct dhdr FAR *);
VOID exit(COUNT);
/*VOID INRPT FAR handle_break(VOID); */
VOID ASMCFUNC tmark(VOID);
BOOL ASMCFUNC tdelay(LONG);
BYTE FAR *ASMCFUNC device_end(VOID);
COUNT ASMCFUNC kb_data(VOID);
COUNT ASMCFUNC kb_input(VOID);
COUNT ASMCFUNC kb_init(VOID);
VOID ASMCFUNC setvec(UWORD, VOID(INRPT FAR *) ());
BYTE FAR *ASMCFUNC getvec(UWORD);
COUNT con(COUNT);
#else
VOID FAR CharMapSrvc();
VOID FAR set_stack();
VOID FAR restore_stack();
WORD execrh();
VOID exit();
/*VOID INRPT FAR handle_break(); */
VOID tmark();
BOOL tdelay();
BYTE FAR *device_end();
COUNT kb_data();
COUNT kb_input();
COUNT kb_init();
VOID setvec();
BYTE FAR *getvec();
COUNT con();
#endif
/* */
/* special word packing prototypes */
/* */
#ifdef NATIVE
#define getlong(vp, lp) (*(LONG *)(lp)=*(LONG *)(vp))
#define getword(vp, wp) (*(WORD *)(wp)=*(WORD *)(vp))
#define getbyte(vp, bp) (*(BYTE *)(bp)=*(BYTE *)(vp))
#define fgetlong(vp, lp) (*(LONG FAR *)(lp)=*(LONG FAR *)(vp))
#define fgetword(vp, wp) (*(WORD FAR *)(wp)=*(WORD FAR *)(vp))
#define fgetbyte(vp, bp) (*(BYTE FAR *)(bp)=*(BYTE FAR *)(vp))
#define fputlong(lp, vp) (*(LONG FAR *)(vp)=*(LONG FAR *)(lp))
#define fputword(wp, vp) (*(WORD FAR *)(vp)=*(WORD FAR *)(wp))
#define fputbyte(bp, vp) (*(BYTE FAR *)(vp)=*(BYTE FAR *)(bp))
#else
#ifdef PROTO
VOID getword(VOID *, WORD *);
VOID getbyte(VOID *, BYTE *);
VOID fgetlong(VOID FAR *, LONG FAR *);
VOID fgetword(VOID FAR *, WORD FAR *);
VOID fgetbyte(VOID FAR *, BYTE FAR *);
VOID fputlong(LONG FAR *, VOID FAR *);
VOID fputword(WORD FAR *, VOID FAR *);
VOID fputbyte(BYTE FAR *, VOID FAR *);
#else
VOID getword();
VOID getbyte();
VOID fgetlong();
VOID fgetword();
VOID fgetbyte();
VOID fputlong();
VOID fputword();
VOID fputbyte();
#endif
#endif
#ifdef I86
#define setvec(n, isr) (void)(*(VOID (INRPT FAR * FAR *)())(MK_FP(0,4 * (n))) = (isr))
#endif
/*#define is_leap_year(y) ((y) & 3 ? 0 : (y) % 100 ? 1 : (y) % 400 ? 0 : 1) */
/* ^Break handling */
void ASMCFUNC spawn_int23(void); /* procsupt.asm */
int control_break(void); /* break.c */
void handle_break(void); /* break.c */
GLOBAL BYTE ReturnAnyDosVersionExpected;
GLOBAL COUNT UnusedRetVal; /* put unused errors here (to save stack space) */
/*
* Log: globals.h,v
*
* Revision 1.17 2000/03/16 03:28:49 kernel
* *** empty log message ***
*
* Revision 1.16 2000/03/09 06:07:11 kernel
* 2017f updates by James Tabor
*
* Revision 1.15 1999/09/23 04:40:47 jprice
* *** empty log message ***
*
* Revision 1.13 1999/08/25 03:18:08 jprice
* ror4 patches to allow TC 2.01 compile.
*
* Revision 1.12 1999/08/10 18:03:43 jprice
* ror4 2011-03 patch
*
* Revision 1.11 1999/05/03 06:25:45 jprice
* Patches from ror4 and many changed of signed to unsigned variables.
*
* Revision 1.10 1999/04/16 21:43:40 jprice
* ror4 multi-sector IO
*
* Revision 1.9 1999/04/16 12:21:22 jprice
* Steffen c-break handler changes
*
* Revision 1.8 1999/04/16 00:53:33 jprice
* Optimized FAT handling
*
* Revision 1.7 1999/04/12 03:21:17 jprice
* more ror4 patches. Changes for multi-block IO
*
* Revision 1.6 1999/04/11 04:33:39 jprice
* ror4 patches
*
* Revision 1.4 1999/04/04 22:57:47 jprice
* no message
*
* Revision 1.3 1999/04/04 18:51:43 jprice
* no message
*
* Revision 1.2 1999/03/29 17:05:09 jprice
* ror4 changes
*
* Revision 1.1.1.1 1999/03/29 15:40:58 jprice
* New version without IPL.SYS
*
* Revision 1.5 1999/02/08 05:55:57 jprice
* Added Pat's 1937 kernel patches
*
* Revision 1.4 1999/02/01 01:48:41 jprice
* Clean up; Now you can use hex numbers in config.sys. added config.sys screen function to change screen mode (28 or 43/50 lines)
*
* Revision 1.3 1999/01/30 08:26:46 jprice
* Clean up; commented out copyright messages while we debug.
*
* Revision 1.2 1999/01/22 04:13:26 jprice
* Formating
*
* Revision 1.1.1.1 1999/01/20 05:51:01 jprice
* Imported sources
*
Rev 1.16 06 Dec 1998 8:45:56 patv
Expanded due to new I/O subsystem.
Rev 1.15 07 Feb 1998 20:38:00 patv
Modified stack fram to match DOS standard
Rev 1.14 02 Feb 1998 22:33:46 patv
Fixed size of default_drive. Caused failures when break_ena was not zero.
Rev 1.13 22 Jan 1998 4:09:24 patv
Fixed pointer problems affecting SDA
Rev 1.12 04 Jan 1998 23:16:22 patv
Changed Log for strip utility
Rev 1.11 03 Jan 1998 8:36:50 patv
Converted data area to SDA format
Rev 1.10 06 Feb 1997 21:57:04 patv
Changed version format string
Rev 1.9 06 Feb 1997 21:35:08 patv
Modified to support new version format
Rev 1.8 22 Jan 1997 13:17:14 patv
Changed to support version.h and pre-0.92 Svante Frey bug fixes.
Rev 1.6 16 Jan 1997 12:47:00 patv
pre-Release 0.92 feature additions
Rev 1.5 13 Sep 1996 19:26:32 patv
Fixed boot for hard drive
Rev 1.4 29 Aug 1996 13:07:22 patv
Bug fixes for v0.91b
Rev 1.3 29 May 1996 21:03:34 patv
bug fixes for v0.91a
Rev 1.2 19 Feb 1996 3:23:04 patv
Added NLS, int2f and config.sys processing
Rev 1.1 01 Sep 1995 17:54:16 patv
First GPL release.
Rev 1.0 02 Jul 1995 8:31:00 patv
Initial revision.
*/
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