/*
 *  X00API.H - X00 FOSSIL driver HLLAPI
 *   
 *   Created by R.F. Pels.
 *   modified by Bob Stout
 *   Placed in the public domain.
 */

/* port numbers and variable type of portnumber in calls */

#define PORTCOM1            0
#define PORTCOM2            1
#define PORTCOM3            2
#define PORTCOM4            3
#define PORTCOM5            4
#define PORTCOM6            5
#define PORTCOM7            6
#define PORTCOM8            7
#define PORTSPECIAL         0x00ff

typedef unsigned int PORT;

/* defines components of baud settings call */

#define BAUD300             0x40
#define BAUD600             0x60
#define BAUD1200            0x80
#define BAUD2400            0xa0
#define BAUD4800            0xc0
#define BAUD9600            0xe0
#define BAUD19200           0x00
#define BAUD38400           0x20
#define PARITYNONE          0x00
#define PARITYODD           0x08
#define PARITYNONEALT       0x10
#define PARITYEVEN          0x18
#define STOP1BIT            0x00
#define STOP2BIT            0x04
#define WORD5BIT            0x00
#define WORD6BIT            0x01
#define WORD7BIT            0x02
#define WORD8BIT            0x03
#define FIDOSETTING         PARITYNONE | STOP1BIT | WORD8BIT
#define OPUSSETTING         PARITYNONE | STOP1BIT | WORD8BIT
#define SEADOGSETTING       PARITYNONE | STOP1BIT | WORD8BIT

/* Error numbers */

#define X00_OK              0
#define X00_NOT_HERE        100
#define X00_CHAR_NOT_SENT   101
#define X00_NO_INPUT        0xffff
#define X00_NO_KEY          0xffff
#define X00_INS_TICK        104
#define X00_DEL_TICK        105
#define X00_INS_APP         106
#define X00_REM_APP         107
#define X00_DTR_HIGH        108
#define X00_DTR_LOW         109


/* FOSSIL initcall result type */

#define X00_PRESENT         0x1954
 
typedef struct {
        unsigned int result;
        unsigned char max_function;
        unsigned char revision;
        } FOSSILINIT;

/* FOSSIL status return type: all fields are 1 if condition exists */

typedef union {
        struct STATUSBITS {
            unsigned int                   : 3;
            unsigned int alwayshigh        : 1;
            unsigned int                   : 3;
            unsigned int carrier_detect    : 1;
            unsigned int chars_in_input    : 1;
            unsigned int input_overrun     : 1;
            unsigned int                   : 3;
            unsigned int output_not_full   : 1;
            unsigned int output_empty      : 1;
            unsigned int                   : 1;
            } statusbits;
      unsigned int statusword;
      } FOSSILSTATUS;

/* FOSSIL info type */

typedef struct {
        unsigned int  size;
        unsigned char version;
        unsigned char revision;
        unsigned int  ofs_fossil_id;
        unsigned int  seg_fossil_id;
        unsigned int  input_size;
        unsigned int  input_avail;
        unsigned int  output_size;
        unsigned int  output_avail;
        unsigned char screen_width;
        unsigned char screen_height;
        unsigned char baud_rate_mask;
        } FOSSILINFO;

/* FOSSIL system info type */

typedef struct {
        unsigned char tick_number;
        unsigned char ticks_per_second;
        unsigned int  approx_ms_per_tick;
        } FOSSILSYSINFO;

/* FOSSIL flow control type */

typedef union {
        struct FLOWBITS {
            unsigned char xonxoff         : 1;
            unsigned char ctsrts          : 1;
            unsigned char remote_xonxoff  : 1;
            unsigned char                 : 5;
            } flowbits;
      unsigned char flowword;
      } FOSSILFLOWCTRL;

/* FOSSIL checks control type */

#define X00_CTLCK           0x0001
#define X00_NO_CTLCK        0x0000

typedef union {
        struct CHECKBITS {
            unsigned char ctlc_ctlk         : 1;
            unsigned char stop_transmitter  : 1;
            unsigned char                   : 6;
            } checkbits;
      unsigned char checkword;
      } FOSSILCTLCCTLK;

#define COLDBOOT        0
#define WARMBOOT        1

#if __cplusplus
 extern "C" {
#endif

unsigned int  x00_detect(void);
FOSSILSTATUS  x00_set(unsigned char set, PORT port);
FOSSILSTATUS  x00_tx_char(unsigned char c, PORT port);
unsigned char x00_rx_char(PORT port);
FOSSILSTATUS  x00_status(PORT port);
FOSSILINIT    x00_init(PORT port, unsigned char far *ctlc_flagbyte);
void          x00_deinit(PORT port);
unsigned int  x00_raise_dtr(PORT port);
unsigned int  x00_lower_dtr(PORT port);
FOSSILSYSINFO x00_sysinfo(void);
void          x00_flush_output(PORT port);
void          x00_purge_output(PORT port);
void          x00_purge_input(PORT port);
unsigned int  x00_tx_char_nowait(unsigned char c, PORT port);
unsigned int  x00_peek_ahead_input(PORT port);
unsigned int  x00_peek_ahead_kbd(void);
unsigned int  x00_read_kbd(void);
void          x00_flow_control(FOSSILFLOWCTRL f, PORT port);
unsigned int  x00_ctlc_ctlk_check(FOSSILCTLCCTLK c, PORT port);
void          x00_set_cup(unsigned char row, unsigned char col);
void          x00_get_cup(unsigned char *row, unsigned char *col);
void          x00_write_ANSI_char(unsigned char c);
void          x00_enable_watchdog(PORT port);
void          x00_disable_watchdog(PORT port);
void          x00_write_BIOS_char(unsigned char c);
unsigned int  x00_insert_tick_func(void (_far *tickfunc)());
unsigned int  x00_delete_tick_func(void (_far *tickfunc)());
void          x00_boot_machine(unsigned int boottype);
unsigned int  x00_read_block(unsigned int count, void far *buf, PORT port);
unsigned int  x00_write_block(unsigned int count, void far *buf, 
PORT port);
void          x00_start_break_signal(PORT port);
void          x00_stop_break_signal(PORT port);
unsigned int  x00_get_driverinfo(void far *buf, PORT port);
unsigned int  x00_install_appendage(unsigned char appcode,
                  void (_far *appfunc)());
unsigned int  x00_remove_appendage(unsigned char appcode, 
                  void (_far *appfunc)());

#if __cplusplus
 }
#endif