videomp.h

/*****************************************************************************

Copyright (c) 2012  Michal Necasek

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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The above copyright notice and this permission notice shall be included in
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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*****************************************************************************/

/*
 * Internal video miniport interfaces.
 */

/* Video Port versions that affect miniport behavior. */

#define VP_VER_NT31     0x030100
#define VP_VER_NT4      0x040000        /* Also NT 3.51 */
#define VP_VER_W2K      0x050000
#define VP_VER_XP       0x050100

/* Video mode description structure */
typedef struct {
    USHORT              HorzRes;                /* Horizontal resolution */
    USHORT              VertRes;                /* Vertical resolution */
    UCHAR               Bpp;                    /* Bits per pixel */
    BOOLEAN             bValid;                 /* Valid mode flag */
} VIDEOMP_MODE, *PVIDEOMP_MODE;

/* The device extension - private miniport data */
typedef struct {
    PVOID               IoPorts;                /* I/O ports mapping */
    PVOID               FrameAddress;           /* Framebuffer mapping */
    PHYSICAL_ADDRESS    PhysicalFrameAddress;   /* Physical FB address */
    ULONG               FramebufLen;            /* Framebuffer length */
    ULONG               CurrentModeNumber;      /* Current mode index */
    ULONG               NumValidModes;          /* Number of valid modes */
    ULONG               NumMonitors;            /* Number of attached monitors */
    PUCHAR              IOAddrVGA;              /* VGA I/O ports mapping */
    ULONG               ulSlot;                 /* PCI slot the adapter is in. */
    ULONG               PortVersion;            /* Video Port version */
} HW_DEV_EXT, *PHW_DEV_EXT;

/* Variables defined in vidmpdat.c */
extern VIDEOMP_MODE         VideoModes[];
extern ULONG                ulAllModes;
extern VIDEO_ACCESS_RANGE   LegacyRanges[];
extern ULONG                ulNumLegacyRanges;
extern ULONG                PortVersion;