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|
/*
* X00API.C: X00 FOSSIL driver
*
* Created by R.F. Pels.
* modified by Bob Stout
* Placed in the public domain by R.F. Pels.
*/
#include "x00api.h"
#include <dos.h>
static union REGS x00regs;
static struct SREGS x00sregs;
int x00error = 0;
#if __cplusplus
extern "C" {
#endif
#ifdef __TURBOC__
#define PEEK(s,o) peek(s,o)
#else /* MSC or ZTC */
#define PEEK(s,o) *((unsigned _far *)(MK_FP((s),(o))))
#endif
#ifndef MK_FP
#define MK_FP(seg,offset) \
((void _far *)(((unsigned long)(seg)<<16) | (unsigned)(offset)))
#endif
unsigned int x00_detect(void)
{
unsigned int segofx00;
unsigned int ofsofx00;
/* Peek in interrupt vector table for start of FOSSIL */
ofsofx00 = PEEK(0, X00_VECTOR * 4);
segofx00 = PEEK(0, (X00_VECTOR * 4) + 2);
/* Peek in start of FOSSIL + X00_IDOFFSET */
return (PEEK(segofx00, ofsofx00 + X00_IDOFFSET));
}
FOSSILSTATUS x00_set(unsigned char set, PORT port)
{
FOSSILSTATUS retval;
x00regs.x.ax = SET_BAUDRATE | set;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
retval.statusword = x00regs.x.ax;
return retval;
}
FOSSILSTATUS x00_tx_char(unsigned char c, PORT port)
{
FOSSILSTATUS retval;
x00regs.x.ax = TX_CHAR | c;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
retval.statusword = x00regs.x.ax;
return retval;
}
unsigned char x00_rx_char(PORT port)
{
x00regs.x.ax = RX_CHAR;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
return (unsigned char)(x00regs.x.ax & 0xff);
}
FOSSILSTATUS x00_status(PORT port)
{
FOSSILSTATUS retval;
x00regs.x.ax = STATUS;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
retval.statusword = x00regs.x.ax;
return retval;
}
FOSSILINIT x00_init(PORT port, unsigned char far *ctlc_flagbyte)
{
FOSSILINIT retval;
x00regs.x.ax = INITIALIZE;
if (ctlc_flagbyte != (unsigned char far *)0)
{
x00regs.x.dx = 0x00ff;
x00regs.x.bx = 0x4F50;
segread(&x00sregs);
x00sregs.es = FP_SEG(ctlc_flagbyte);
x00regs.x.cx = FP_OFF(ctlc_flagbyte);
}
else
{
x00regs.x.bx = 0x0000; /* in any case _NOT_ 0x4f50 */
x00regs.x.dx = port;
}
int86x(X00_VECTOR, &x00regs, &x00regs, &x00sregs);
retval.result = x00regs.x.ax;
retval.max_function = (unsigned char)(x00regs.x.bx & 0xff);
retval.revision = (unsigned char)(x00regs.x.bx >> 8);
return retval;
}
void x00_deinit(PORT port)
{
x00regs.x.ax = DEINITIALIZE;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
}
unsigned int x00_raise_dtr(PORT port)
{
unsigned int retval;
x00regs.x.ax = RAISE_DTR;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
if ((x00regs.x.ax & 0x0001) == 1)
{
retval = X00_DTR_HIGH;
}
else retval = X00_DTR_LOW;
return retval;
}
unsigned int x00_lower_dtr(PORT port)
{
unsigned int retval;
x00regs.x.ax = LOWER_DTR;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
if ((x00regs.x.ax & 0x0001) == 1)
{
retval = X00_DTR_HIGH;
}
else retval = X00_DTR_LOW;
return retval;
}
FOSSILSYSINFO x00_sysinfo(void)
{
FOSSILSYSINFO retval;
x00regs.x.ax = GET_SYS_INFO;
int86(X00_VECTOR, &x00regs, &x00regs);
retval.tick_number = (unsigned char)(x00regs.x.ax & 0xff);
retval.ticks_per_second = (unsigned char)(x00regs.x.ax >> 8);
retval.approx_ms_per_tick = x00regs.x.dx;
return retval;
}
void x00_flush_output(PORT port)
{
x00regs.x.ax = FLUSH_OUTPUT;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
}
void x00_purge_output(PORT port)
{
x00regs.x.ax = PURGE_OUTPUT;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
}
void x00_purge_input(PORT port)
{
x00regs.x.ax = PURGE_INPUT;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
}
unsigned int x00_tx_char_nowait(unsigned char c, PORT port)
{
unsigned int retval;
x00regs.x.ax = TX_CHAR_NOWAIT | c;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
if ((x00regs.x.ax & 0x0001) == 1)
{
retval = X00_OK;
}
else retval = X00_CHAR_NOT_SENT;
return retval;
}
unsigned int x00_peek_ahead_input(PORT port)
{
x00regs.x.ax = PEEK_AHEAD_INPUT;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
return x00regs.x.ax;
}
unsigned int x00_peek_ahead_kbd(void)
{
x00regs.x.ax = PEEK_AHEAD_KBD;
int86(X00_VECTOR, &x00regs, &x00regs);
return x00regs.x.ax;
}
unsigned int x00_read_kbd(void)
{
x00regs.x.ax = READ_KBD;
int86(X00_VECTOR, &x00regs, &x00regs);
return x00regs.x.ax;
}
void x00_flow_control(FOSSILFLOWCTRL f, PORT port)
{
x00regs.x.ax = FLOW_CONTROL | 0xf0 | f.flowword;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
}
unsigned int x00_ctlc_ctlk_check(FOSSILCTLCCTLK c, PORT port)
{
x00regs.x.ax = CTLC_CTLK_CHECK | c.checkword;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
return x00regs.x.ax;
}
void x00_set_cup(unsigned char row, unsigned char col)
{
x00regs.x.ax = SET_CUP;
x00regs.x.dx = (row << 8) | col;
int86(X00_VECTOR, &x00regs, &x00regs);
}
void x00_get_cup(unsigned char *row, unsigned char *col)
{
x00regs.x.ax = GET_CUP;
int86(X00_VECTOR, &x00regs, &x00regs);
*col = (unsigned char)(x00regs.x.dx & 0xff);
*row = (unsigned char)(x00regs.x.dx >> 8);
}
void x00_write_ANSI_char(unsigned char c)
{
x00regs.x.ax = WRITE_ANSI_CHAR | c;
int86(X00_VECTOR, &x00regs, &x00regs);
}
void x00_enable_watchdog(PORT port)
{
x00regs.x.ax = ENABLE_WATCHDOG;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
}
void x00_disable_watchdog(PORT port)
{
x00regs.x.ax = DISABLE_WATCHDOG;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
}
void x00_write_BIOS_char(unsigned char c)
{
x00regs.x.ax = WRITE_BIOS_CHAR | c;
int86(X00_VECTOR, &x00regs, &x00regs);
}
unsigned int x00_insert_tick_func(void (far *tickfunc)())
{
unsigned int retval;
x00regs.x.ax = INSERT_TICK_FUNC;
x00regs.x.dx = FP_OFF(tickfunc);
segread(&x00sregs);
x00sregs.es = FP_SEG(tickfunc);
int86x(X00_VECTOR, &x00regs, &x00regs, &x00sregs);
if (x00regs.x.ax == 0x0000)
{
retval = X00_OK;
}
else retval = X00_INS_TICK;
return retval;
}
unsigned int x00_delete_tick_func(void (far *tickfunc)())
{
unsigned int retval;
x00regs.x.ax = DELETE_TICK_FUNC;
x00regs.x.dx = FP_OFF(tickfunc);
segread(&x00sregs);
x00sregs.es = FP_SEG(tickfunc);
int86x(X00_VECTOR, &x00regs, &x00regs, &x00sregs);
if (x00regs.x.ax == 0x0000)
{
retval = X00_OK;
}
else retval = X00_DEL_TICK;
return retval;
}
void x00_boot_machine(unsigned int boottype)
{
x00regs.x.ax = BOOT_MACHINE | (boottype & 0x0001);
int86(X00_VECTOR, &x00regs, &x00regs);
}
unsigned int x00_read_block(unsigned int count, void far *buf, PORT port)
{
x00regs.x.ax = READ_BLOCK;
x00regs.x.cx = count;
x00regs.x.dx = port;
segread(&x00sregs);
x00sregs.es = FP_SEG(buf);
x00regs.x.di = FP_OFF(buf);
int86x(X00_VECTOR, &x00regs, &x00regs, &x00sregs);
return x00regs.x.ax;
}
unsigned int x00_write_block(unsigned int count, void far *buf, PORT port)
{
x00regs.x.ax = WRITE_BLOCK;
x00regs.x.cx = count;
x00regs.x.dx = port;
segread(&x00sregs);
x00sregs.es = FP_SEG(buf);
x00regs.x.di = FP_OFF(buf);
int86x(X00_VECTOR, &x00regs, &x00regs, &x00sregs);
return x00regs.x.ax;
}
void x00_start_break_signal(PORT port)
{
x00regs.x.ax = START_BREAK_SIGNAL;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
}
void x00_stop_break_signal(PORT port)
{
x00regs.x.ax = STOP_BREAK_SIGNAL;
x00regs.x.dx = port;
int86(X00_VECTOR, &x00regs, &x00regs);
}
unsigned int x00_get_driverinfo(void far *buf, PORT port)
{
x00regs.x.ax = GET_DRIVER_INFO;
x00regs.x.cx = sizeof(FOSSILINFO);
segread(&x00sregs);
x00sregs.es = FP_SEG(buf);
x00regs.x.di = FP_OFF(buf);
x00regs.x.dx = port;
int86x(X00_VECTOR, &x00regs, &x00regs, &x00sregs);
return x00regs.x.ax;
}
unsigned int x00_install_appendage(unsigned char appcode,
void (far *appfunc)())
{
unsigned int retval;
x00regs.x.ax = INSTALL_APPENDAGE | appcode;
segread(&x00sregs);
x00sregs.es = FP_SEG(appfunc);
x00regs.x.dx = FP_OFF(appfunc);
int86x(X00_VECTOR, &x00regs, &x00regs, &x00sregs);
if (x00regs.x.ax == X00_PRESENT)
{
if ((x00regs.x.bx & 0xff00) == 1)
{
retval = X00_OK;
}
else retval = X00_INS_APP;
}
else retval = X00_NOT_HERE;
return retval;
}
unsigned int x00_remove_appendage(unsigned char appcode,
void (far *appfunc)())
{
unsigned int retval;
x00regs.x.ax = REMOVE_APPENDAGE | appcode;
segread(&x00sregs);
x00sregs.es = FP_SEG(appfunc);
x00regs.x.dx = FP_OFF(appfunc);
int86x(X00_VECTOR, &x00regs, &x00regs, &x00sregs);
if (x00regs.x.ax == X00_PRESENT)
{
if ((x00regs.x.bx & 0xff00) == 1)
{
retval = X00_OK;
}
else retval = X00_REM_APP;
}
else retval = X00_NOT_HERE;
return retval;
}
#if __cplusplus
}
#endif
|
