include/ddk/videoagp.h

   1 /*
   2  * videoagp.h
   3  *
   4  * Video miniport AGP interface
   5  *
   6  * This file is part of the w32api package.
   7  *
   8  * Contributors:
   9  *   Created by Casper S. Hornstrup <chorns@users.sourceforge.net>
  10  *
  11  * THIS SOFTWARE IS NOT COPYRIGHTED
  12  *
  13  * This source code is offered for use in the public domain. You may
  14  * use, modify or distribute it freely.
  15  *
  16  * This code is distributed in the hope that it will be useful but
  17  * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  18  * DISCLAIMED. This includes but is not limited to warranties of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  20  *
  21  */
  22
  23 #pragma once
  24
  25 #ifdef __cplusplus
  26 extern "C" {
  27 #endif
  28
  29 #define VIDEO_AGP_RATE_1X                 0x00000001
  30 #define VIDEO_AGP_RATE_2X                 0x00000002
  31 #define VIDEO_AGP_RATE_4X                 0x00000004
  32 #define VIDEO_AGP_RATE_8X                 0x00000008
  33
  34 typedef enum _VIDEO_PORT_CACHE_TYPE {
  35   VpNonCached = 0,
  36   VpWriteCombined,
  37   VpCached
  38 } VIDEO_PORT_CACHE_TYPE;
  39
  40 typedef BOOLEAN
  41 (NTAPI *PAGP_COMMIT_PHYSICAL)(
  42   IN PVOID HwDeviceExtension,
  43   IN PVOID PhysicalReserveContext,
  44   IN ULONG Pages,
  45   IN ULONG Offset);
  46
  47 typedef PVOID
  48 (NTAPI *PAGP_COMMIT_VIRTUAL)(
  49   IN PVOID HwDeviceExtension,
  50   IN PVOID VirtualReserveContext,
  51   IN ULONG Pages,
  52   IN ULONG Offset);
  53
  54 typedef VOID
  55 (NTAPI *PAGP_FREE_PHYSICAL)(
  56   IN PVOID HwDeviceExtension,
  57   IN PVOID PhysicalReserveContext,
  58   IN ULONG Pages,
  59   IN ULONG Offset);
  60
  61 typedef VOID
  62 (NTAPI *PAGP_FREE_VIRTUAL)(
  63   IN PVOID HwDeviceExtension,
  64   IN PVOID VirtualReserveContext,
  65   IN ULONG Pages,
  66   IN ULONG Offset);
  67
  68 typedef VOID
  69 (NTAPI *PAGP_RELEASE_PHYSICAL)(
  70   IN PVOID HwDeviceExtension,
  71   IN PVOID PhysicalReserveContext);
  72
  73 typedef VOID
  74 (NTAPI *PAGP_RELEASE_VIRTUAL)(
  75   IN PVOID HwDeviceExtension,
  76   IN PVOID VirtualReserveContext);
  77
  78 typedef PHYSICAL_ADDRESS
  79 (NTAPI *PAGP_RESERVE_PHYSICAL)(
  80   IN PVOID HwDeviceExtension,
  81   IN ULONG Pages,
  82   IN VIDEO_PORT_CACHE_TYPE  Caching,
  83   OUT PVOID *PhysicalReserveContext);
  84
  85 typedef PVOID
  86 (NTAPI *PAGP_RESERVE_VIRTUAL)(
  87   IN PVOID HwDeviceExtension,
  88   IN HANDLE ProcessHandle,
  89   IN PVOID PhysicalReserveContext,
  90   OUT PVOID *VirtualReserveContext);
  91
  92 typedef BOOLEAN
  93 (NTAPI *PAGP_SET_RATE)(
  94   IN PVOID HwDeviceExtension,
  95   IN ULONG AgpRate);
  96
  97 typedef struct _VIDEO_PORT_AGP_SERVICES {
  98   PAGP_RESERVE_PHYSICAL AgpReservePhysical;
  99   PAGP_RELEASE_PHYSICAL AgpReleasePhysical;
 100   PAGP_COMMIT_PHYSICAL AgpCommitPhysical;
 101   PAGP_FREE_PHYSICAL AgpFreePhysical;
 102   PAGP_RESERVE_VIRTUAL AgpReserveVirtual;
 103   PAGP_RELEASE_VIRTUAL AgpReleaseVirtual;
 104   PAGP_COMMIT_VIRTUAL AgpCommitVirtual;
 105   PAGP_FREE_VIRTUAL AgpFreeVirtual;
 106   ULONGLONG AllocationLimit;
 107 } VIDEO_PORT_AGP_SERVICES, *PVIDEO_PORT_AGP_SERVICES;
 108
 109 BOOLEAN
 110 NTAPI
 111 VideoPortGetAgpServices(
 112   IN PVOID HwDeviceExtension,
 113   IN PVIDEO_PORT_AGP_SERVICES AgpServices);
 114
 115 #ifdef __cplusplus
 116 }
 117 #endif