/* Included by initialisation functions */
#define IN_INIT_MOD

#include "version.h"
#include "date.h"
#include "time.h"
#include "mcb.h"
#include "sft.h"
#include "fat.h"
#include "fnode.h"
#include "file.h"
#include "cds.h"
#include "device.h"
#include "kbd.h"
#include "error.h"
#include "fcb.h"
#include "tail.h"
#include "process.h"
#include "pcb.h"
#include "nls.h"
#include "buffer.h"
#include "dcb.h"

#include "kconfig.h"
extern struct _KernelConfig InitKernelConfig;

/*
 * Functions in `INIT_TEXT' may need to call functions in `_TEXT'. The entry
 * calls for the latter functions therefore need to be wrapped up with far
 * entry points.
 */
#define printf      init_printf
#define sprintf     init_sprintf
#define execrh      init_execrh
#define fmemcpy     init_fmemcpy
#define fmemset     init_fmemset
#define fmemcmp     init_fmemcmp
#define memset      init_memset
#define strcpy      init_strcpy
WORD ASMCFUNC execrh(request FAR *, struct dhdr FAR *);
void fmemcpy(void far *d, const void far *s, unsigned n);
void fmemset(void far *s, int ch, unsigned n);
void memset(void *s, int ch, unsigned n);
void strcpy(char *dest, const char *src);

#undef LINESIZE
#define LINESIZE KBD_MAXLENGTH

/*inithma.c*/
extern BYTE DosLoadedInHMA;
int fmemcmp(BYTE far * s1, BYTE FAR * s2, unsigned len);

#define setvec(n, isr) (void)(*(intvec FAR *)MK_FP(0,4 * (n)) = (isr))

#define GLOBAL extern
#define NAMEMAX         MAX_CDSPATH     /* Maximum path for CDS         */
#define PARSE_MAX       MAX_CDSPATH     /* maximum # of bytes in path   */
#define NFILES          16      /* number of files in table     */
#define NFCBS           16      /* number of fcbs               */
#define NSTACKS         8       /* number of stacks             */
#define NLAST           5       /* last drive                   */
#define NUMBUFF         20      /* Number of track buffers at INIT time     */
                                        /* -- must be at least 3        */
#define MAX_HARD_DRIVE  8
#define NDEV            26      /* up to Z:                     */

/* Start of configuration variables                                     */
struct config {
  BYTE cfgBuffers;
  /* number of buffers in the system      */
  UBYTE cfgFiles;
  /* number of available files            */
  UBYTE cfgFcbs;
  /* number of available FCBs             */
  UBYTE cfgProtFcbs;
  /* number of protected FCBs             */
  BYTE cfgInit[NAMEMAX];
  /* init of command.com          */
  BYTE cfgInitTail[NAMEMAX];
  /* command.com's tail           */
  UBYTE cfgLastdrive;
  /* last drive                           */
  BYTE cfgStacks;
  /* number of stacks                     */
  UWORD cfgStackSize;
  /* stacks size for each stack           */
  /* COUNTRY=
     In Pass #1 these information is collected and in PostConfig()
     the NLS package is loaded into memory.
     -- 2000/06/11 ska */
  WORD cfgCSYS_cntry;
  /* country ID to be loaded */
  UWORD cfgCSYS_cp;
  /* requested codepage; NLS_DEFAULT if default */
  BYTE cfgCSYS_fnam[NAMEMAX];
  /* filename of COUNTRY= */
  WORD cfgCSYS_memory;
  /* number of bytes required for the NLS pkg;
     0 if none */
  VOID FAR *cfgCSYS_data;
  /* where the loaded data is for PostConfig() */
  UBYTE cfgP_0_startmode;
  /* load command.com high or not */
};

extern struct config Config;

/* config.c */
VOID PreConfig(VOID);
VOID DoConfig(int pass);
VOID PostConfig(VOID);
VOID configDone(VOID);
VOID FAR * KernelAlloc(size_t nBytes);
char *strcat(char * d, const char * s);
COUNT ASMCFUNC Umb_Test(void);
COUNT ASMCFUNC UMB_get_largest(UCOUNT * seg, UCOUNT * size);
BYTE * GetStringArg(BYTE * pLine, BYTE * pszString);
void DoInstall(void);

/* diskinit.c */
COUNT dsk_init(VOID);

/* int2f.asm */
COUNT ASMCFUNC Umb_Test(void);

/* inithma.c */
int MoveKernelToHMA(void);
VOID FAR * HMAalloc(COUNT bytesToAllocate);

/* initoem.c */
UWORD init_oem(void);

/* intr.asm */

void ASMCFUNC init_call_intr(int nr, iregs * rp);
UCOUNT ASMCFUNC read(int fd, void *buf, UCOUNT count);
int ASMCFUNC open(const char *pathname, int flags);
int ASMCFUNC close(int fd);
int ASMCFUNC dup2(int oldfd, int newfd);
int ASMCFUNC allocmem(UWORD size, seg * segp);
VOID ASMCFUNC init_PSPInit(seg psp_seg);
VOID ASMCFUNC init_PSPSet(seg psp_seg);
COUNT ASMCFUNC init_DosExec(COUNT mode, exec_blk * ep, BYTE * lp);
VOID ASMCFUNC keycheck(VOID);

/* irqstack.asm */
VOID ASMCFUNC init_stacks(VOID FAR * stack_base, COUNT nStacks,
                          WORD stackSize);

/* inthndlr.c */
VOID ASMCFUNC FAR int21_entry(iregs UserRegs);
VOID ASMCFUNC int21_service(iregs far * r);
VOID ASMCFUNC FAR int0_handler(void);
VOID ASMCFUNC FAR int6_handler(void);
VOID ASMCFUNC FAR empty_handler(void);
VOID ASMCFUNC FAR got_cbreak(void);     /* procsupt.asm */
VOID ASMCFUNC FAR int20_handler(void);
VOID ASMCFUNC FAR int21_handler(void);
VOID ASMCFUNC FAR int22_handler(void);
VOID ASMCFUNC FAR int24_handler(void);
VOID ASMCFUNC FAR low_int25_handler(void);
VOID ASMCFUNC FAR low_int26_handler(void);
VOID ASMCFUNC FAR int27_handler(void);
VOID ASMCFUNC FAR int28_handler(void);
VOID ASMCFUNC FAR int29_handler(void);
VOID ASMCFUNC FAR int2a_handler(void);
VOID ASMCFUNC FAR int2f_handler(void);

/* main.c */
VOID ASMCFUNC FreeDOSmain(void);
BOOL init_device(struct dhdr FAR * dhp, BYTE FAR * cmdLine,
                      COUNT mode, char FAR *top);
VOID init_fatal(BYTE * err_msg);

/* prf.c */
WORD CDECL init_printf(CONST BYTE * fmt, ...);
WORD CDECL init_sprintf(BYTE * buff, CONST BYTE * fmt, ...);

void MoveKernel(unsigned NewKernelSegment);
extern WORD HMAFree;            /* first byte in HMA not yet used      */

extern unsigned CurrentKernelSegment;

#if defined(WATCOM) && 0
ULONG ASMCFUNC FAR MULULUS(ULONG mul1, UWORD mul2);     /* MULtiply ULong by UShort */
ULONG ASMCFUNC FAR MULULUL(ULONG mul1, ULONG mul2);     /* MULtiply ULong by ULong */
ULONG ASMCFUNC FAR DIVULUS(ULONG mul1, UWORD mul2);     /* DIVide ULong by UShort */
ULONG ASMCFUNC FAR DIVMODULUS(ULONG mul1, UWORD mul2, UWORD * rem);     /* DIVide ULong by UShort */
#endif