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  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, &regs, &regs);
  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, &regs, &regs);
  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, &regs, &regs);
  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, &regs, &regs);
  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, &regs, &regs);
  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, &regs, &regs);
  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, &regs, &regs);
  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, &regs, &regs);
  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, &regs, &regs);
  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, &regs, &regs);
  222. }
  223.