ref: 83d4cf3fd1a257df21468f5bb3b4329e5cf8a40f
dir: /u/mplib.c/
/*
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <dpmi.h>
//#include "types.h"
typedef unsigned char BYTE;
typedef unsigned short WORD;
typedef unsigned long DWORD;
//#include "mgenord.h"
#define MGENVXD_REGISTER_ORD 1
#define MGENVXD_GETMEM_ORD 2
#define MGENVXD_DEREGISTER_ORD 3
#define MGENVXD_WAKEUP_ORD 4
#define MGENVXD_MAKEDQS_ORD 5
// Virtual 8086 API Ordinals
#define V86API_GETSELECTOR16_ORD (1)
#define V86API_GETSELECTOR32_ORD (2)
#define V86API_GETFLAT32_ORD (3)
#define V86API_MOVERP_ORD (6)
#define V86API_MOVEPR_ORD (7)
#define V86API_POST_ORD (8)
#define V86API_INIT_ORD (9)
#define V86API_UNINIT_ORD (10)
#define V86API_INSERTKEY_ORD (11)
#define V86API_REMOVEHOTKEY_ORD (12)
#define V86API_INSTALLHOTKEY_ORD (13)
#define V86API_HOOKINT48_ORD (14)
#define V86API_WAKEUPDLL_ORD (15)
#define DPMIAPI_GETFLAT32_ORD (1)
#define DPMIAPI_POST_WINDOWS_ORD (2)
// these are DPMI functions. Make sure they don't clash with the
// other MGENVXD_XXXX functions above, or the DPMI functions!
#define MGENVXD_GETQUEUECTR_ORD 6
#define MGENVXD_MOVENODE_ORD 7
#define MGENVXD_GETNODE_ORD 8
#define MGENVXD_FLUSHNODE_ORD 9
#define MGENVXD_MCOUNT_ORD 10
#define MGENVXD_MASTERNODE_ORD 11
#define MGENVXD_SANITYCHECK_ORD 12
#define MGENVXD_WAKEUPDLL_ORD 13
#define MGENVXD_WAIT_ORD 14
//
#define HWND_OFFSET (0)
#define UMSG_OFFSET (1)
#define SIZEREQUEST_OFFSET (2)
#define HVXD_OFFSET (3)
#define DATUM_OFFSET (4)
#define SLOT_OFFSET (5)
#define SIZEGIVEN_OFFSET (6)
#define SELECTOR32_OFFSET (7)
#define SELECTOR16_OFFSET (8)
//#include "magic.h"
#define MGENVXD_DEVICE_ID 0x18AA
//#include "rtq.h"
#define RTQ_NODE struct rtq_node
RTQ_NODE
{
RTQ_NODE *self; // Ring zero address of this node
RTQ_NODE *left; // Ring zero address of preceding node
RTQ_NODE *right; // Ring zero address of succeding node
BYTE * rtqDatum; // Ring 3 Datum of Buffer (start of preface)
BYTE * rtqInsert; // Ring 3 insertion position
WORD rtqLen; // Length of buffer, excluding preface
WORD rtqUpCtr; // Up Counter of bytes used so far
WORD rtqQCtr; // number of nodes attached
WORD padding; // DWORD alignment
};
#define RTQ_PARAM_MOVENODE struct rtq_param_movenode
RTQ_PARAM_MOVENODE
{
WORD rtqFromDQ;
WORD rtqToDQ;
};
RTQ_NODE* rtq_fetch(RTQ_NODE*, RTQ_NODE*); // To, From
int _int86(int vector, __dpmi_regs *iregs, __dpmi_regs *oregs);
#define CHUNNEL_INT 0x48
#define int386 _int86
#define REGISTERS __dpmi_regs
void
Yield(void)
{
__dpmi_yield();
}
void
PostWindowsMessage(void)
{
REGISTERS regs;
regs.d.eax = DPMIAPI_POST_WINDOWS_ORD << 16 | MGENVXD_DEVICE_ID;
regs.d.ebx = 0;
regs.d.ecx = 0;
int386(CHUNNEL_INT, ®s, ®s);
}
int
MGenWait(void)
{
REGISTERS regs;
regs.d.eax = MGENVXD_WAIT_ORD << 16 | MGENVXD_DEVICE_ID;
int386(CHUNNEL_INT, ®s, ®s);
return regs.d.eax;
}
int MGenGetQueueCtr(int qNo)
{
REGISTERS regs;
regs.d.eax = MGENVXD_GETQUEUECTR_ORD << 16 | MGENVXD_DEVICE_ID;
regs.d.ebx = qNo;
int386(CHUNNEL_INT, ®s, ®s);
return regs.d.eax;
}
RTQ_NODE *MGenMoveTo(int qFrom, int qTo)
{
REGISTERS regs;
regs.d.eax = MGENVXD_MOVENODE_ORD << 16 | MGENVXD_DEVICE_ID;
regs.d.ebx = qFrom;
regs.d.ecx = qTo;
int386(CHUNNEL_INT, ®s, ®s);
return (RTQ_NODE *) regs.d.eax;
}
RTQ_NODE *MGenGetNode(int q)
{
REGISTERS regs;
regs.d.eax = MGENVXD_GETNODE_ORD << 16 | MGENVXD_DEVICE_ID;
regs.d.ebx = q;
int386(CHUNNEL_INT, ®s, ®s);
return (RTQ_NODE *) regs.d.eax;
}
RTQ_NODE *MGenGetMasterNode(unsigned *size)
{
REGISTERS regs;
regs.d.eax = MGENVXD_MASTERNODE_ORD << 16 | MGENVXD_DEVICE_ID;
int386(CHUNNEL_INT, ®s, ®s);
*size = regs.d.ecx;
return (RTQ_NODE *) regs.d.eax;
}
RTQ_NODE *MGenFlushNodes(int qFrom, int qTo)
{
REGISTERS regs;
regs.d.eax = MGENVXD_FLUSHNODE_ORD << 16 | MGENVXD_DEVICE_ID;
regs.d.ebx = qFrom;
regs.d.ecx = qTo;
int386(CHUNNEL_INT, ®s, ®s);
return (RTQ_NODE *) regs.d.eax;
}
int MGenMCount(unsigned lowerOrderBits, unsigned upperOrderBits)
{
REGISTERS regs;
regs.d.eax = MGENVXD_MCOUNT_ORD << 16 | MGENVXD_DEVICE_ID;
regs.d.ebx = lowerOrderBits;
regs.d.ecx = upperOrderBits;
int386(CHUNNEL_INT, ®s, ®s);
return regs.d.eax;
}
int MGenSanityCheck(void)
{
REGISTERS regs;
regs.d.eax = MGENVXD_SANITYCHECK_ORD << 16 | MGENVXD_DEVICE_ID;
int386(CHUNNEL_INT, ®s, ®s);
return regs.d.eax;
}
void MGenWakeupDll(void)
{
REGISTERS regs;
regs.d.eax = MGENVXD_WAKEUPDLL_ORD << 16 | MGENVXD_DEVICE_ID;
int386(CHUNNEL_INT, ®s, ®s);
}