mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-06 05:01:26 +00:00
250 lines
5.5 KiB
C
250 lines
5.5 KiB
C
/*
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mplib.c
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@description@
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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static __attribute__ ((unused)) const char rcsid[] =
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"$Id$";
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#include <dpmi.h>
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//#include "types.h"
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typedef unsigned char BYTE;
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typedef unsigned short WORD;
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typedef unsigned long DWORD;
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//#include "mgenord.h"
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#define MGENVXD_REGISTER_ORD 1
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#define MGENVXD_GETMEM_ORD 2
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#define MGENVXD_DEREGISTER_ORD 3
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#define MGENVXD_WAKEUP_ORD 4
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#define MGENVXD_MAKEDQS_ORD 5
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// Virtual 8086 API Ordinals
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#define V86API_GETSELECTOR16_ORD (1)
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#define V86API_GETSELECTOR32_ORD (2)
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#define V86API_GETFLAT32_ORD (3)
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#define V86API_MOVERP_ORD (6)
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#define V86API_MOVEPR_ORD (7)
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#define V86API_POST_ORD (8)
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#define V86API_INIT_ORD (9)
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#define V86API_UNINIT_ORD (10)
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#define V86API_INSERTKEY_ORD (11)
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#define V86API_REMOVEHOTKEY_ORD (12)
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#define V86API_INSTALLHOTKEY_ORD (13)
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#define V86API_HOOKINT48_ORD (14)
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#define V86API_WAKEUPDLL_ORD (15)
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#define DPMIAPI_GETFLAT32_ORD (1)
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#define DPMIAPI_POST_WINDOWS_ORD (2)
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// these are DPMI functions. Make sure they don't clash with the
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// other MGENVXD_XXXX functions above, or the DPMI functions!
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#define MGENVXD_GETQUEUECTR_ORD 6
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#define MGENVXD_MOVENODE_ORD 7
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#define MGENVXD_GETNODE_ORD 8
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#define MGENVXD_FLUSHNODE_ORD 9
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#define MGENVXD_MCOUNT_ORD 10
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#define MGENVXD_MASTERNODE_ORD 11
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#define MGENVXD_SANITYCHECK_ORD 12
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#define MGENVXD_WAKEUPDLL_ORD 13
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#define MGENVXD_WAIT_ORD 14
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//
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#define HWND_OFFSET (0)
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#define UMSG_OFFSET (1)
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#define SIZEREQUEST_OFFSET (2)
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#define HVXD_OFFSET (3)
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#define DATUM_OFFSET (4)
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#define SLOT_OFFSET (5)
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#define SIZEGIVEN_OFFSET (6)
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#define SELECTOR32_OFFSET (7)
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#define SELECTOR16_OFFSET (8)
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//#include "magic.h"
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#define MGENVXD_DEVICE_ID 0x18AA
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//#include "rtq.h"
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#define RTQ_NODE struct rtq_node
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RTQ_NODE {
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RTQ_NODE *self; // Ring zero address of this node
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RTQ_NODE *left; // Ring zero address of preceding
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// node
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RTQ_NODE *right; // Ring zero address of succeding
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// node
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BYTE *rtqDatum; // Ring 3 Datum of Buffer (start of
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// preface)
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BYTE *rtqInsert; // Ring 3 insertion position
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WORD rtqLen; // Length of buffer, excluding
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// preface
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WORD rtqUpCtr; // Up Counter of bytes used so far
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WORD rtqQCtr; // number of nodes attached
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WORD padding; // DWORD alignment
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};
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#define RTQ_PARAM_MOVENODE struct rtq_param_movenode
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RTQ_PARAM_MOVENODE {
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WORD rtqFromDQ;
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WORD rtqToDQ;
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};
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RTQ_NODE *rtq_fetch (RTQ_NODE *, RTQ_NODE *); // To, From
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int _int86 (int vector, __dpmi_regs * iregs, __dpmi_regs * oregs);
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#define CHUNNEL_INT 0x48
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#define int386 _int86
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#define REGISTERS __dpmi_regs
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void
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Yield (void)
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{
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__dpmi_yield ();
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}
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void
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PostWindowsMessage (void)
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{
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REGISTERS regs;
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regs.d.eax = DPMIAPI_POST_WINDOWS_ORD << 16 | MGENVXD_DEVICE_ID;
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regs.d.ebx = 0;
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regs.d.ecx = 0;
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int386 (CHUNNEL_INT, ®s, ®s);
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}
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int
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MGenWait (void)
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{
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REGISTERS regs;
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regs.d.eax = MGENVXD_WAIT_ORD << 16 | MGENVXD_DEVICE_ID;
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int386 (CHUNNEL_INT, ®s, ®s);
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return regs.d.eax;
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}
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int
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MGenGetQueueCtr (int qNo)
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{
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REGISTERS regs;
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regs.d.eax = MGENVXD_GETQUEUECTR_ORD << 16 | MGENVXD_DEVICE_ID;
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regs.d.ebx = qNo;
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int386 (CHUNNEL_INT, ®s, ®s);
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return regs.d.eax;
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}
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RTQ_NODE *
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MGenMoveTo (int qFrom, int qTo)
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{
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REGISTERS regs;
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regs.d.eax = MGENVXD_MOVENODE_ORD << 16 | MGENVXD_DEVICE_ID;
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regs.d.ebx = qFrom;
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regs.d.ecx = qTo;
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int386 (CHUNNEL_INT, ®s, ®s);
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return (RTQ_NODE *) regs.d.eax;
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}
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RTQ_NODE *
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MGenGetNode (int q)
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{
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REGISTERS regs;
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regs.d.eax = MGENVXD_GETNODE_ORD << 16 | MGENVXD_DEVICE_ID;
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regs.d.ebx = q;
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int386 (CHUNNEL_INT, ®s, ®s);
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return (RTQ_NODE *) regs.d.eax;
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}
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RTQ_NODE *
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MGenGetMasterNode (unsigned *size)
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{
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REGISTERS regs;
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regs.d.eax = MGENVXD_MASTERNODE_ORD << 16 | MGENVXD_DEVICE_ID;
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int386 (CHUNNEL_INT, ®s, ®s);
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*size = regs.d.ecx;
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return (RTQ_NODE *) regs.d.eax;
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}
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RTQ_NODE *
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MGenFlushNodes (int qFrom, int qTo)
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{
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REGISTERS regs;
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regs.d.eax = MGENVXD_FLUSHNODE_ORD << 16 | MGENVXD_DEVICE_ID;
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regs.d.ebx = qFrom;
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regs.d.ecx = qTo;
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int386 (CHUNNEL_INT, ®s, ®s);
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return (RTQ_NODE *) regs.d.eax;
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}
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int
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MGenMCount (unsigned lowerOrderBits, unsigned upperOrderBits)
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{
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REGISTERS regs;
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regs.d.eax = MGENVXD_MCOUNT_ORD << 16 | MGENVXD_DEVICE_ID;
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regs.d.ebx = lowerOrderBits;
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regs.d.ecx = upperOrderBits;
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int386 (CHUNNEL_INT, ®s, ®s);
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return regs.d.eax;
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}
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int
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MGenSanityCheck (void)
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{
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REGISTERS regs;
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regs.d.eax = MGENVXD_SANITYCHECK_ORD << 16 | MGENVXD_DEVICE_ID;
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int386 (CHUNNEL_INT, ®s, ®s);
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return regs.d.eax;
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}
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void
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MGenWakeupDll (void)
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{
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REGISTERS regs;
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regs.d.eax = MGENVXD_WAKEUPDLL_ORD << 16 | MGENVXD_DEVICE_ID;
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int386 (CHUNNEL_INT, ®s, ®s);
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}
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