1 /* 2 Copyright (C) 1996-1997 Id Software, Inc. 3 4 This program is free software; you can redistribute it and/or 5 modify it under the terms of the GNU General Public License 6 as published by the Free Software Foundation; either version 2 7 of the License, or (at your option) any later version. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 12 13 See the GNU General Public License for more details. 14 15 You should have received a copy of the GNU General Public License 16 along with this program; if not, write to the Free Software 17 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 18 19 */ 20 #include <dpmi.h> 21 22 //#include "types.h" 23 typedef unsigned char BYTE; 24 typedef unsigned short WORD; 25 typedef unsigned long DWORD; 26 27 //#include "mgenord.h" 28 #define MGENVXD_REGISTER_ORD 1 29 #define MGENVXD_GETMEM_ORD 2 30 #define MGENVXD_DEREGISTER_ORD 3 31 #define MGENVXD_WAKEUP_ORD 4 32 #define MGENVXD_MAKEDQS_ORD 5 33 34 35 // Virtual 8086 API Ordinals 36 #define V86API_GETSELECTOR16_ORD (1) 37 #define V86API_GETSELECTOR32_ORD (2) 38 #define V86API_GETFLAT32_ORD (3) 39 #define V86API_MOVERP_ORD (6) 40 #define V86API_MOVEPR_ORD (7) 41 #define V86API_POST_ORD (8) 42 #define V86API_INIT_ORD (9) 43 #define V86API_UNINIT_ORD (10) 44 #define V86API_INSERTKEY_ORD (11) 45 #define V86API_REMOVEHOTKEY_ORD (12) 46 #define V86API_INSTALLHOTKEY_ORD (13) 47 #define V86API_HOOKINT48_ORD (14) 48 #define V86API_WAKEUPDLL_ORD (15) 49 50 #define DPMIAPI_GETFLAT32_ORD (1) 51 #define DPMIAPI_POST_WINDOWS_ORD (2) 52 // these are DPMI functions. Make sure they don't clash with the 53 // other MGENVXD_XXXX functions above, or the DPMI functions! 54 #define MGENVXD_GETQUEUECTR_ORD 6 55 #define MGENVXD_MOVENODE_ORD 7 56 #define MGENVXD_GETNODE_ORD 8 57 #define MGENVXD_FLUSHNODE_ORD 9 58 #define MGENVXD_MCOUNT_ORD 10 59 #define MGENVXD_MASTERNODE_ORD 11 60 #define MGENVXD_SANITYCHECK_ORD 12 61 #define MGENVXD_WAKEUPDLL_ORD 13 62 #define MGENVXD_WAIT_ORD 14 63 64 // 65 #define HWND_OFFSET (0) 66 #define UMSG_OFFSET (1) 67 #define SIZEREQUEST_OFFSET (2) 68 #define HVXD_OFFSET (3) 69 #define DATUM_OFFSET (4) 70 #define SLOT_OFFSET (5) 71 #define SIZEGIVEN_OFFSET (6) 72 #define SELECTOR32_OFFSET (7) 73 #define SELECTOR16_OFFSET (8) 74 75 //#include "magic.h" 76 #define MGENVXD_DEVICE_ID 0x18AA 77 78 //#include "rtq.h" 79 #define RTQ_NODE struct rtq_node 80 81 RTQ_NODE 82 { 83 RTQ_NODE *self; // Ring zero address of this node 84 RTQ_NODE *left; // Ring zero address of preceding node 85 RTQ_NODE *right; // Ring zero address of succeding node 86 BYTE * rtqDatum; // Ring 3 Datum of Buffer (start of preface) 87 BYTE * rtqInsert; // Ring 3 insertion position 88 WORD rtqLen; // Length of buffer, excluding preface 89 WORD rtqUpCtr; // Up Counter of bytes used so far 90 WORD rtqQCtr; // number of nodes attached 91 WORD padding; // DWORD alignment 92 }; 93 94 #define RTQ_PARAM_MOVENODE struct rtq_param_movenode 95 RTQ_PARAM_MOVENODE 96 { 97 WORD rtqFromDQ; 98 WORD rtqToDQ; 99 }; 100 101 RTQ_NODE* rtq_fetch(RTQ_NODE*, RTQ_NODE*); // To, From 102 103 int _int86(int vector, __dpmi_regs *iregs, __dpmi_regs *oregs); 104 105 #define CHUNNEL_INT 0x48 106 107 #define int386 _int86 108 #define REGISTERS __dpmi_regs 109 110 void 111 Yield(void) 112 { 113 __dpmi_yield(); 114 } 115 116 void 117 PostWindowsMessage(void) 118 { 119 REGISTERS regs; 120 121 regs.d.eax = DPMIAPI_POST_WINDOWS_ORD << 16 | MGENVXD_DEVICE_ID; 122 regs.d.ebx = 0; 123 regs.d.ecx = 0; 124 int386(CHUNNEL_INT, ®s, ®s); 125 } 126 127 int 128 MGenWait(void) 129 { 130 REGISTERS regs; 131 132 regs.d.eax = MGENVXD_WAIT_ORD << 16 | MGENVXD_DEVICE_ID; 133 int386(CHUNNEL_INT, ®s, ®s); 134 return regs.d.eax; 135 } 136 137 int MGenGetQueueCtr(int qNo) 138 { 139 REGISTERS regs; 140 141 regs.d.eax = MGENVXD_GETQUEUECTR_ORD << 16 | MGENVXD_DEVICE_ID; 142 regs.d.ebx = qNo; 143 int386(CHUNNEL_INT, ®s, ®s); 144 145 return regs.d.eax; 146 } 147 148 RTQ_NODE *MGenMoveTo(int qFrom, int qTo) 149 { 150 REGISTERS regs; 151 152 regs.d.eax = MGENVXD_MOVENODE_ORD << 16 | MGENVXD_DEVICE_ID; 153 regs.d.ebx = qFrom; 154 regs.d.ecx = qTo; 155 int386(CHUNNEL_INT, ®s, ®s); 156 157 return (RTQ_NODE *) regs.d.eax; 158 } 159 160 RTQ_NODE *MGenGetNode(int q) 161 { 162 REGISTERS regs; 163 164 regs.d.eax = MGENVXD_GETNODE_ORD << 16 | MGENVXD_DEVICE_ID; 165 regs.d.ebx = q; 166 int386(CHUNNEL_INT, ®s, ®s); 167 168 return (RTQ_NODE *) regs.d.eax; 169 } 170 171 RTQ_NODE *MGenGetMasterNode(unsigned *size) 172 { 173 REGISTERS regs; 174 175 regs.d.eax = MGENVXD_MASTERNODE_ORD << 16 | MGENVXD_DEVICE_ID; 176 int386(CHUNNEL_INT, ®s, ®s); 177 *size = regs.d.ecx; 178 179 return (RTQ_NODE *) regs.d.eax; 180 } 181 182 RTQ_NODE *MGenFlushNodes(int qFrom, int qTo) 183 { 184 REGISTERS regs; 185 186 regs.d.eax = MGENVXD_FLUSHNODE_ORD << 16 | MGENVXD_DEVICE_ID; 187 regs.d.ebx = qFrom; 188 regs.d.ecx = qTo; 189 int386(CHUNNEL_INT, ®s, ®s); 190 191 return (RTQ_NODE *) regs.d.eax; 192 } 193 194 int MGenMCount(unsigned lowerOrderBits, unsigned upperOrderBits) 195 { 196 REGISTERS regs; 197 198 regs.d.eax = MGENVXD_MCOUNT_ORD << 16 | MGENVXD_DEVICE_ID; 199 regs.d.ebx = lowerOrderBits; 200 regs.d.ecx = upperOrderBits; 201 int386(CHUNNEL_INT, ®s, ®s); 202 203 return regs.d.eax; 204 } 205 206 int MGenSanityCheck(void) 207 { 208 REGISTERS regs; 209 210 regs.d.eax = MGENVXD_SANITYCHECK_ORD << 16 | MGENVXD_DEVICE_ID; 211 int386(CHUNNEL_INT, ®s, ®s); 212 213 return regs.d.eax; 214 } 215 216 void MGenWakeupDll(void) 217 { 218 REGISTERS regs; 219 220 regs.d.eax = MGENVXD_WAKEUPDLL_ORD << 16 | MGENVXD_DEVICE_ID; 221 int386(CHUNNEL_INT, ®s, ®s); 222 } 223
