/*
 * videoagp.h
 *
 * Video miniport AGP interface
 *
 * This file is part of the w32api package.
 *
 * Contributors:
 *   Created by Casper S. Hornstrup <chorns@users.sourceforge.net>
 *
 * THIS SOFTWARE IS NOT COPYRIGHTED
 *
 * This source code is offered for use in the public domain. You may
 * use, modify or distribute it freely.
 *
 * This code is distributed in the hope that it will be useful but
 * WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
 * DISCLAIMED. This includes but is not limited to warranties of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 *
 */

#ifndef __VIDEOAGP_H
#define __VIDEOAGP_H

#if __GNUC__ >=3
#pragma GCC system_header
#endif

#ifdef __cplusplus
extern "C" {
#endif

#include "ntddk.h"
#include "video.h"


#define VIDEO_AGP_RATE_1X                 0x00000001
#define VIDEO_AGP_RATE_2X                 0x00000002
#define VIDEO_AGP_RATE_4X                 0x00000004
#define VIDEO_AGP_RATE_8X                 0x00000008

typedef enum _VIDEO_PORT_CACHE_TYPE {
	VpNonCached = 0,
	VpWriteCombined,
	VpCached
} VIDEO_PORT_CACHE_TYPE;

typedef BOOLEAN DDKAPI
(*PAGP_COMMIT_PHYSICAL)(
  /*IN*/ PVOID  HwDeviceExtension,
  /*IN*/ PVOID  PhysicalReserveContext,
  /*IN*/ ULONG  Pages,
  /*IN*/ ULONG  Offset);

typedef PVOID DDKAPI
(*PAGP_COMMIT_VIRTUAL)(
  /*IN*/  PVOID  HwDeviceExtension,
  /*IN*/  PVOID  VirtualReserveContext,
  /*IN*/  ULONG  Pages,
  /*IN*/  ULONG  Offset);

typedef VOID DDKAPI
(*PAGP_FREE_PHYSICAL)(
  /*IN*/  PVOID  HwDeviceExtension,
  /*IN*/  PVOID  PhysicalReserveContext,
  /*IN*/  ULONG  Pages,
  /*IN*/  ULONG  Offset);

typedef VOID DDKAPI
(*PAGP_FREE_VIRTUAL)(
  /*IN*/ PVOID  HwDeviceExtension,
  /*IN*/ PVOID  VirtualReserveContext,
  /*IN*/ ULONG  Pages,
  /*IN*/ ULONG  Offset);

typedef VOID DDKAPI
(*PAGP_RELEASE_PHYSICAL)(
  /*IN*/ PVOID  HwDeviceExtension,
  /*IN*/ PVOID  PhysicalReserveContext);

typedef VOID DDKAPI
(*PAGP_RELEASE_VIRTUAL)(
  /*IN*/  PVOID  HwDeviceExtension,
  /*IN*/  PVOID  VirtualReserveContext);

typedef PHYSICAL_ADDRESS DDKAPI
(*PAGP_RESERVE_PHYSICAL)(
  /*IN*/ PVOID  HwDeviceExtension,
  /*IN*/ ULONG  Pages,
  /*IN*/ VIDEO_PORT_CACHE_TYPE  Caching,
  /*OUT*/ PVOID  *PhysicalReserveContext);

typedef PVOID DDKAPI
(*PAGP_RESERVE_VIRTUAL)(
  /*IN*/ PVOID  HwDeviceExtension,
  /*IN*/ HANDLE  ProcessHandle,
  /*IN*/ PVOID  PhysicalReserveContext,
  /*OUT*/ PVOID  *VirtualReserveContext);

typedef BOOLEAN DDKAPI
(*PAGP_SET_RATE)(
  /*IN*/ PVOID  HwDeviceExtension,
  /*IN*/ ULONG  AgpRate);

typedef struct _VIDEO_PORT_AGP_SERVICES {
  PAGP_RESERVE_PHYSICAL  AgpReservePhysical;
  PAGP_RELEASE_PHYSICAL  AgpReleasePhysical;
  PAGP_COMMIT_PHYSICAL  AgpCommitPhysical;
  PAGP_FREE_PHYSICAL  AgpFreePhysical;
  PAGP_RESERVE_VIRTUAL  AgpReserveVirtual;
  PAGP_RELEASE_VIRTUAL  AgpReleaseVirtual;
  PAGP_COMMIT_VIRTUAL  AgpCommitVirtual;
  PAGP_FREE_VIRTUAL  AgpFreeVirtual;
  ULONGLONG  AllocationLimit;
} VIDEO_PORT_AGP_SERVICES, *PVIDEO_PORT_AGP_SERVICES;

VPAPI
BOOLEAN
DDKAPI
VideoPortGetAgpServices(
  /*IN*/ PVOID  HwDeviceExtension,
  /*IN*/ PVIDEO_PORT_AGP_SERVICES  AgpServices);

#ifdef __cplusplus
}
#endif

#endif /* __VIDEOAGP_H */
