/*
 * 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__

#include "video.h"

#ifdef __cplusplus
extern "C" {
#endif

#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__ */
