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Length: 2164 (0x874)
Types: TextFile
Notes: UNIX file
Names: »gdi.h«
└─⟦0cfe73749⟧ Bits:30004154/config.imd SW95707I VP/ix MS-DOS emulator Rel. 1.1
└─⟦0cfe73749⟧ UNIX Filesystem
└─⟦this⟧ »vc/new/usr/vpix/etc/conf/gdi.h«
/* @(#)gdi.h 3.2 - 88/05/27 */
/* GDI.H
* Generic Device Interface- user interface constants
*
* Copyright (c) 1988 by Interactive Systems Corporation
*
*/
#define MAXDNAME 50 /* max len of a device name */
#define MAXCHUNKS 10 /* max io/memory chunk definitions */
#define MAXGDEVS 10 /* max GDI devices per vpix task */
#define MAXTAB_ENTRIES 20 /* max entries in save/rstr tables */
#define VPIXDEVS "/usr/vpix/etc/vpixdevs"
#define AS ";" /* address separator */
#define FS ":" /* field separator */
/* Channel Emulation codes passed to handlers. */
#define DOS_OPEN 0 /* Emulation open channel code */
#define DOS_CLOSE 1 /* Emulation close channel code */
#define DOS_SEND 2 /* Channel request from DOS */
/* Channel Error definitions. */
#define ERR_NONE 0 /* No errors */
#define ERR_NOTFOUND 1 /* Error - entry not found */
#define ERR_NOSLOT 2 /* Error - no space in table */
#define ERR_BUSY 3 /* Error - channel is busy */
#ifndef VERR_WARNING
#define VERR_WARNING 0 /* vp/ix warning */
#endif
#ifndef VERR_FATAL
#define VERR_FATAL 1 /* vp/ix fatal error */
#endif
/* standard GDI data types */
typedef char * MENU_HDL;
typedef char * TIMER_HDL;
typedef char * CADDR_T;
typedef short CHANNEL_ID;
/* gdi device entry in the gdi_list.c file */
struct gdi_entry {
char *gdname;
int (*gd_initrtn)();
};
/* definition of a chunk of memory or io */
struct gd_chunk {
long base;
int len;
};
/* parameters of a GDI device as specified in the /etc/vpixdevs file */
struct gdevice {
char gdi_lname[MAXDNAME]; /* true name of device */
char gdi_iemname[MAXDNAME]; /* true name of device */
char gdi_dname[MAXDNAME]; /* name of device in /dev */
struct gd_chunk gdi_iorange[MAXCHUNKS]; /* I/O entries defined */
struct gd_chunk gdi_memrange[MAXCHUNKS];/* mem locations defined */
int gdi_irqval; /* IRQ level defined */
int gdi_dmaval; /* DMA chan defined */
};