/* dos emulator, Matthias Lautner */
#ifndef EMU_H
#define EMU_H
/* Extensions by Robert Sanders, 1992-93
 *
 * $Date: 1994/06/14 21:34:25 $
 * $Source: /usr/src/dosemu0.52/RCS/emu.h,v $
 * $Revision: 2.2 $
 * $State: Exp $
 *
 * $Log: emu.h,v $
 * Revision 2.2  1994/06/14  21:34:25  root
 * Second series of termcap patches.
 *
 * Revision 2.1  1994/06/12  23:15:37  root
 * Wrapping up prior to release of DOSEMU0.52.
 *
 * Revision 1.32  1994/06/03  00:58:55  root
 * pre51_23 prep, Daniel's fix for scrbuf malloc().
 *
 * Revision 1.31  1994/05/26  23:15:01  root
 * Prep. for pre51_21.
 *
 * Revision 1.30  1994/05/21  23:39:19  root
 * PRE51_19.TGZ with Lutz's latest updates.
 *
 * Revision 1.29  1994/05/10  23:08:10  root
 * pre51_14.
 *
 * Revision 1.28  1994/05/09  23:35:11  root
 * pre51_13.
 *
 * Revision 1.27  1994/05/04  21:56:55  root
 * Prior to Alan's mouse patches.
 *
 * Revision 1.26  1994/04/27  21:34:15  root
 * Jochen's Latest.
 *
 * Revision 1.25  1994/04/23  20:51:40  root
 * Get new stack over/underflow working in VM86 mode.
 *
 * Revision 1.24  1994/04/18  22:52:19  root
 * Ready pre51_7.
 *
 * Revision 1.23  1994/04/16  01:28:47  root
 * Prep for pre51_6.
 *
 * Revision 1.22  1994/04/13  00:07:09  root
 * Lutz's patches
 *
 * Revision 1.21  1994/04/07  00:18:41  root
 * Pack up for pre52_4.
 *
 * Revision 1.20  1994/03/23  23:24:51  root
 * Prepare to split out do_int.
 *
 * Revision 1.19  1994/03/15  01:38:20  root
 * DPMI,serial, other changes.
 *
 * Revision 1.18  1994/03/13  01:07:31  root
 * Poor attempt to optimize.
 *
 * Revision 1.17  1994/03/10  02:49:27  root
 * Back to 1 process.
 *
 * Revision 1.16  1994/03/04  15:23:54  root
 * Run through indent.
 *
 * Revision 1.15  1994/03/04  14:46:13  root
 * Jochen's patches.
 *
 * Revision 1.14  1994/03/04  00:01:58  root
 * Getting ready for 0.50
 *
 * Revision 1.13  1994/02/10  20:41:14  root
 * Last cleanup prior to release of pl4.
 *
 * Revision 1.12  1994/02/09  20:10:24  root
 * Added dosbanner config option for optionally displaying dosemu bannerinfo.
 * Added allowvideportaccess config option to deal with video ports.
 *
 * Revision 1.11  1994/02/05  21:45:55  root
 * Minor bugfixes [2.
 *
 * Revision 1.10  1994/02/01  20:57:31  root
 * With unlimited thanks to gorden@jegnixa.hsc.missouri.edu (Jason Gorden),
 * here's a packet driver to compliment Tim_R_Bird@Novell.COM's IPX work.
 *
 * Revision 1.9  1994/01/31  18:27:21  root
 * Mods for first round of terminfo intergration.
 *
 * Revision 1.8  1994/01/27  21:47:09  root
 * Patches by Tim_R_Bird@Novell.COM in preparation for IPX under DOSEMU.
 *
 * Revision 1.7  1994/01/27  19:43:54  root
 * Prepare for Tim's IPX implementation.
 *
 * Revision 1.6  1994/01/25  20:02:44  root
 * Added D_printf for DPMI debug messages.
 * Exchange stderr <-> stdout.
 *
 * Revision 1.5  1994/01/20  21:14:24  root
 * Indent.
 *
 * Revision 1.4  1993/12/30  11:18:32  root
 * Theadore T'so's changes to allow booting from a bootdisk and returning
 * the floppy for dosemu to use.
 *
 * Revision 1.3  1993/11/30  21:26:44  root
 * Chips First set of patches, WOW!
 *
 * Revision 1.2  1993/11/23  22:24:53  root
 * Work on serial to 9600
 *
 * Revision 1.1  1993/11/12  12:32:17  root
 * Initial revision
 *
 * Revision 1.2  1993/07/07  21:42:04  root
 * minor changes for -Wall
 *
 * Revision 1.1  1993/07/07  00:49:06  root
 * Initial revision
 *
 * Revision 1.13  1993/05/04  05:29:22  root
 * added console switching, new parse commands, and serial emulation
 *
 * Revision 1.12  1993/04/05  17:25:13  root
 * big pre-49 checkit; EMS, new MFS redirector, etc.
 *
 * Revision 1.11  1993/03/02  03:06:42  root
 * somewhere between 0.48pl1 and 0.49 (with IPC).  added virtual IOPL
 * and AC support (for 386/486 tests), -3 and -4 flags for choosing.
 * Split dosemu into 2 processes; the child select()s on the keyboard,
 * and signals the parent when a key is received (also sends it on a
 * UNIX domain socket...this might not work well for non-console keyb).
 *
 * Revision 1.10  1993/02/24  11:33:24  root
 * some general cleanups, fixed the key-repeat bug.
 *
 * Revision 1.9  1993/02/18  19:35:58  root
 * just added newline so diff wouldn't barf
 *
 * Revision 1.8  1993/02/13  23:37:20  root
 * latest version, no time to document!
 *
 * Revision 1.7  1993/02/10  20:56:45  root
 * for the circa-Wp dosemu
 *
 * Revision 1.6  1993/02/08  04:17:56  root
 * dosemu 0.47.7
 *
 * Revision 1.5  1993/02/05  02:54:24  root
 * this is for 0.47.6
 *
 * Revision 1.4  1993/02/04  01:16:57  root
 * version 0.47.5
 *
 * Revision 1.3  1993/01/28  02:19:59  root
 * for emu.c 1.12
 * THIS IS THE DOSEMU47 DISTRIBUTION EMU.H
 *
 */

#include "machcompat.h"
#include "cpu.h"
#include <sys/types.h>

#define inline __inline__

#define BIT(x)  	(1<<x)

#define us unsigned short

extern struct vm86_struct vm86s;
extern int screen, max_page, screen_mode;

extern char *cl,		/* clear screen */
*le,				/* cursor left */
*cm,				/* goto */
*ce,				/* clear to end */
*sr,				/* scroll reverse */
*so,				/* stand out start */
*se,				/* stand out end */
*md,				/* hilighted */
*mr,				/* reverse */
*me,				/* normal */
*ti,				/* terminal init */
*te,				/* terminal exit */
*ks,				/* init keys */
*ke,				/* ens keys */
*vi,				/* cursor invisible */
*ve;				/* cursor normal */

extern int kbd_fd, mem_fd, ioc_fd;
extern int in_readkeyboard;

extern int in_vm86;

extern int li, co, li2, co2;	/* lines, columns */
extern int scanseq;

/* #define CO	80
   #define LI	25 */

/* would use the info termio.c nicely got for us, but it works badly now */
#define CO	co2
#define LI	li2

void dos_ctrlc(void), dos_ctrl_alt_del(void);
void show_regs(void);
int ext_fs(int, char *, char *, int);
int outch(int c);
void termioInit(void);
void termioClose(void);
__inline__ void run_vm86(void);

#define NOWAIT  0
#define WAIT    1
#define TEST    2
#define POLL    3

void getKeys(void);
int InsKeyboard(unsigned short scancode);



struct debug_flags {
  unsigned char
   disk,			/* disk msgs, "d" */
   read,			/* disk read "R" */
   write,			/* disk write "W" */
   dos,				/* unparsed int 21h, "D" */
   video,			/* video, "v" */
   keyb,			/* keyboard, "k" */
   debug, io,			/* port I/O, "i" */
   serial,			/* serial, "s" */
   defint,			/* default ints */
   printer, general, warning, all,	/* all non-classifiable messages */
   hardware, xms, mouse, IPC, EMS, config, dpmi, network;	/* TRB - only IPX for now */
};

#if __GNUC__ >= 2
# define FORMAT(T,A,B)  __attribute__((format(T,A,B)))
#else
# define FORMAT(T,A,B)
#endif

#if __GNUC__ >= 2
# define NORETURN	__attribute__((noreturn))
#else
# define NORETURN
#endif

extern void saytime(char *m_str);

int
ifprintf(unsigned char, const char *,...) FORMAT(printf, 2, 3);
     void p_dos_str(char *,...) FORMAT(printf, 1, 2);

#if 1

#define dbug_printf(f,a...)	ifprintf(2,f,##a)
#define k_printf(f,a...) 	ifprintf(d.keyb,f,##a)
#define h_printf(f,a...) 	ifprintf(d.hardware,f,##a)
#define v_printf(f,a...) 	ifprintf(d.video,f,##a)
#define s_printf(f,a...) 	ifprintf(d.serial,f,##a)
#define p_printf(f,a...) 	ifprintf(d.printer,f,##a)
#define d_printf(f,a...) 	ifprintf(d.disk,f,##a)
#define i_printf(f,a...) 	ifprintf(d.io,f,##a)
#define R_printf(f,a...) 	ifprintf(d.read,f,##a)
#define W_printf(f,a...) 	ifprintf(d.write,f,##a)
#define warn(f,a...)     	ifprintf(d.warning,f,##a)
#define g_printf(f,a...)	ifprintf(d.general,f,##a)
#define x_printf(f,a...)	ifprintf(d.xms,f,##a)
#define D_printf(f,a...)	ifprintf(d.dpmi,f,##a)
#define m_printf(f,a...)	ifprintf(d.mouse,f,##a)
#define I_printf(f,a...) 	ifprintf(d.IPC,f,##a)
#define E_printf(f,a...) 	ifprintf(d.EMS,f,##a)
#define c_printf(f,a...) 	ifprintf(d.config,f,##a)
#define e_printf(f,a...) 	ifprintf(1,f,##a)
#define n_printf(f,a...)        ifprintf(d.network,f,##a)	/* TRB */
#define pd_printf(f,a...)       ifprintf(0,f,##a)	/* pktdrvr  */
#define error(f,a...)	 	ifprintf(1,f,##a)

#else
#define dbug_printf(f,a...)	ifprintf(2,f,##a)
#define k_printf(f,a...)
#define h_printf(f,a...)
#define v_printf(f,a...)
#define s_printf(f,a...)
#define p_printf(f,a...)
#define d_printf(f,a...)
#define i_printf(f,a...)
#define R_printf(f,a...)
#define W_printf(f,a...)
#define warn(f,a...)
#define g_printf(f,a...)
#define x_printf(f,a...)
#define D_printf(f,a...)
#define m_printf(f,a...)
#define I_printf(f,a...)
#define E_printf(f,a...)
#define c_printf(f,a...)
#define e_printf(f,a...)
#define n_printf(f,a...)
#define pd_printf(f,a...)
#define error(f,a...)

#endif

     void char_out(u_char, int);

     struct ioctlq {
       int fd, req, param3;
       int queued;
     };

     void do_queued_ioctl(void);
     int queue_ioctl(int, int, int), do_ioctl(int, int, int);
     void keybuf_clear(void);

     int set_ioperm(int, int, int);

     extern struct debug_flags d;
     extern int gfx_mode;	/* flag for in gxf mode or not */
     extern u_char in_sighandler, in_ioctl;
     extern struct ioctlq iq, curi;
#ifndef EMU_C

#endif

     /* int 11h config single bit tests
 */
#define CONF_FLOP	BIT(0)
#define CONF_MATHCO	BIT(1)
#define CONF_MOUSE	BIT(2)
#define CONF_DMA	BIT(8)
#define CONF_GAME	BIT(12)

     /* don't use CONF_NSER with num > 4, CONF_NLPT with num > 3, CONF_NFLOP
 * with num > 4
 */
#define CONF_NSER(c,num)	{c&=~(BIT(9)|BIT(10)|BIT(11)); c|=(num<<9);}
#define CONF_NLPT(c,num) 	{c&=~(BIT(14)|BIT(14)); c|=(num<<14);}
#define CONF_NFLOP(c,num) 	{c&=~(CONF_FLOP|BIT(6)|BIT(7)); \
				   if (num) c|=((num-1)<<6)|CONF_FLOP;}

     /* this macro can be safely wrapped around a system call with no side
 * effects; using a feature of GCC, it returns the same value as the
 * function call argument inside.
 *
 * this is best used in places where the errors can't be sanely handled,
 * or are not expected...
 */
#define DOS_SYSCALL(sc) ({ int s_tmp = (int)sc; \
  if (s_tmp == -1) \
    error("SYSCALL ERROR: %d, *%s* in file %s, line %d: expr=\n\t%s\n", \
	  errno, strerror(errno), __FILE__, __LINE__, #sc); \
  s_tmp; })

#define RPT_SYSCALL(sc) ({ int s_tmp; \
   do { \
	  s_tmp = sc; \
      } while ((s_tmp == -1) && (errno == EINTR)); \
  s_tmp; })

#define RPT_SYSCALL2(sc) ({ int s_tmp; \
   do { \
	  s_tmp = sc; \
      } while ((s_tmp == -1) ); \
  s_tmp; })

#ifndef USE_NCURSES
#define FALSE	0
#define TRUE	1
#endif

     typedef unsigned char boolean;

     typedef struct config_info {
       int hdiskboot;

       /* for video */
       boolean console_video;
       boolean graphics;
       boolean vga;
       u_short cardtype;
       u_short chipset;
       u_short gfxmemsize;	/* for SVGA card, in K */
       u_short redraw_chunks;
       boolean fullrestore;

       boolean console_keyb;
       boolean exitearly;
       boolean mathco;
       boolean ipxsup;
       boolean keybint;
       boolean dosbanner;
       boolean allowvideoportaccess;
       boolean timers;
       boolean mouse_flag;
       boolean mapped_bios;	/* video BIOS */
       boolean mapped_sbios;	/* system BIOS */
       char *vbios_file;	/* loaded VBIOS file */
       boolean vbios_copy;
       int vbios_seg;           /* VGA-BIOS-segment for mapping */

       boolean bootdisk;	/* Special bootdisk defined */
       boolean fastfloppy;
       char *emusys;		/* map CONFIG.SYS to CONFIG.EMU */
       char *emubat;		/* map AUTOEXEC.BAT to AUTOEXEC.EMU */

       u_short speaker;		/* 0 off, 1 native, 2 emulated */
       u_short fdisks, hdisks;
       u_short num_lpt;
       u_short num_ser;
       u_short num_mice;

       int pktflags;		/* global flags for packet driver */

       unsigned int update, freq;	/* temp timer magic */

       unsigned int hogthreshold;

       int mem_size, xms_size, ems_size, dpmi_size;

       int keyboard;
       unsigned char *key_map;     /* pointer to the correct keyboard-map */
       unsigned char *shift_map;
       unsigned char *alt_map;
       unsigned char *num_table;
     }

config_t;

extern config_t config;

extern unsigned char *scrbuf;		/* the previously updated screen */

#define SPKR_OFF	0
#define SPKR_NATIVE	1
#define SPKR_EMULATED	2

#define KEYB_FINNISH           0
#define KEYB_FINNISH_LATIN1    1
#define KEYB_US                2
#define KEYB_UK                3
#define KEYB_GR                4
#define KEYB_GR_LATIN1         5
#define KEYB_FR                6
#define KEYB_FR_LATIN1         7
#define KEYB_DK                8
#define KEYB_DK_LATIN1         9
#define KEYB_DVORAK           10
#define KEYB_SG               11
#define KEYB_SG_LATIN1        12
#define KEYB_NO               13
#define KEYB_SF               15
#define KEYB_SF_LATIN1        16
#define KEYB_ES               17
#define KEYB_ES_LATIN1        18
#define KEYB_BE               19

#ifndef OLD_SCROLL
#define scrollup(x0,y0,x1,y1,l,att) Scroll(x0,y0,x1,y1,l,att)
#define scrolldn(x0,y0,x1,y1,l,att) Scroll(x0,y0,x1,y1,-(l),att)
#endif

/*
 * Right now, dosemu only supports two serial ports.
 */
#define SIG_SER		SIGTTIN

#define SIG_TIME	SIGALRM
#define TIMER_TIME	ITIMER_REAL

#define IO_READ  1
#define IO_WRITE 2
#define IO_RDWR	 (IO_READ | IO_WRITE)

#undef cli
#undef sti
extern void cli(void);
extern void sti(void);
extern int port_readable(int);
extern int port_writeable(int);
extern int read_port(int);
extern int write_port(int, int);
extern __inline__ void parent_nextscan(void);
extern __inline__ void disk_close(void);
extern void show_cursor(void);
extern void cpu_init(void);
extern __inline__ void run_int(int);
extern int mfs_redirector(void);
extern void int10(void);
extern void int13(void);
extern void int14(void);
extern void int17(void);
extern void io_select(void);
extern int pd_receive_packet(void);
extern int printer_tick(u_long);
extern int printer_tick(u_long);
extern void floppy_tick(void);
extern void close_kmem(void);
extern void CloseNetworkLink(int);
extern int parse_config(char *);
extern int exchange_uids(void);
extern void disk_init(void);
extern void serial_init(void);
extern void close_all_printers(void);
extern void serial_close(void);
extern void disk_close_all(void);
extern void init_all_printers(void);
extern int mfs_inte6(void);
extern void pkt_helper(void);
extern short pop_word(struct vm86_regs *);
extern boolean_t bios_emm_fn(state_t *);
extern int GetDebugFlagsHelper(char *);
extern int SetDebugFlagsHelper(char *);
extern void leavedos(int) NORETURN;

#endif /* EMU_H */
