| 1 |
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| 2 | /*
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| 3 | * XFree86 vbe module
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| 4 | * Copyright 2000 Egbert Eich
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| 5 | *
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| 6 | * The mode query/save/set/restore functions from the vesa driver
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| 7 | * have been moved here.
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| 8 | * Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com)
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| 9 | * Authors: Paulo César Pereira de Andrade <[email protected]>
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| 10 | */
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| 11 |
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| 12 | #ifndef _VBE_H
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| 13 | #define _VBE_H
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| 14 | #include "xf86int10.h"
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| 15 | #include "xf86DDC.h"
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| 16 |
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| 17 | typedef enum {
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| 18 | DDC_UNCHECKED,
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| 19 | DDC_NONE,
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| 20 | DDC_1,
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| 21 | DDC_2,
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| 22 | DDC_1_2
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| 23 | }
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| 24 | ddc_lvl;
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| 25 |
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| 26 | typedef struct {
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| 27 | xf86Int10InfoPtr pInt10;
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| 28 | int version;
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| 29 | pointer memory;
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| 30 | int real_mode_base;
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| 31 | int num_pages;
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| 32 | Bool init_int10;
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| 33 | ddc_lvl ddc;
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| 34 | Bool ddc_blank;
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| 35 | } vbeInfoRec, *vbeInfoPtr;
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| 36 |
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| 37 | #define VBE_VERSION_MAJOR(x) *((CARD8*)(&x) + 1)
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| 38 | #define VBE_VERSION_MINOR(x) (CARD8)(x)
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| 39 |
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| 40 | vbeInfoPtr VBEInit(xf86Int10InfoPtr pInt, int entityIndex);
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| 41 | vbeInfoPtr VBEExtendedInit(xf86Int10InfoPtr pInt, int entityIndex, int Flags);
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| 42 | void vbeFree(vbeInfoPtr pVbe);
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| 43 | xf86MonPtr vbeDoEDID(vbeInfoPtr pVbe, pointer pDDCModule);
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| 44 |
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| 45 | #pragma pack(1)
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| 46 |
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| 47 | typedef struct vbeControllerInfoBlock {
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| 48 | CARD8 VbeSignature[4];
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| 49 | CARD16 VbeVersion;
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| 50 | CARD32 OemStringPtr;
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| 51 | CARD8 Capabilities[4];
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| 52 | CARD32 VideoModePtr;
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| 53 | CARD16 TotalMem;
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| 54 | CARD16 OemSoftwareRev;
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| 55 | CARD32 OemVendorNamePtr;
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| 56 | CARD32 OemProductNamePtr;
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| 57 | CARD32 OemProductRevPtr;
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| 58 | CARD8 Scratch[222];
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| 59 | CARD8 OemData[256];
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| 60 | } vbeControllerInfoRec, *vbeControllerInfoPtr;
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| 61 |
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| 62 | #if defined(__GNUC__) || defined(__USLC__) || defined(__SUNPRO_C)
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| 63 | #pragma pack() /* All GCC versions recognise this syntax */
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| 64 | #else
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| 65 | #pragma pack(0)
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| 66 | #endif
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| 67 |
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| 68 | #ifndef __GNUC__
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| 69 | #define __attribute__(a)
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| 70 | #endif
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| 71 |
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| 72 | typedef struct _VbeInfoBlock VbeInfoBlock;
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| 73 | typedef struct _VbeModeInfoBlock VbeModeInfoBlock;
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| 74 | typedef struct _VbeCRTCInfoBlock VbeCRTCInfoBlock;
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| 75 |
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| 76 | /*
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| 77 | * INT 0
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| 78 | */
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| 79 |
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| 80 | struct _VbeInfoBlock {
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| 81 | /* VESA 1.2 fields */
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| 82 | CARD8 VESASignature[4]; /* VESA */
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| 83 | CARD16 VESAVersion; /* Higher byte major, lower byte minor */
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| 84 | /*CARD32*/char *OEMStringPtr; /* Pointer to OEM string */
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| 85 | CARD8 Capabilities[4]; /* Capabilities of the video environment */
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| 86 |
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| 87 | /*CARD32*/CARD16 *VideoModePtr; /* pointer to supported Super VGA modes */
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| 88 |
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| 89 | CARD16 TotalMemory; /* Number of 64kb memory blocks on board */
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| 90 | /* if not VESA 2, 236 scratch bytes follow (256 bytes total size) */
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| 91 |
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| 92 | /* VESA 2 fields */
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| 93 | CARD16 OemSoftwareRev; /* VBE implementation Software revision */
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| 94 | /*CARD32*/char *OemVendorNamePtr; /* Pointer to Vendor Name String */
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| 95 | /*CARD32*/char *OemProductNamePtr; /* Pointer to Product Name String */
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| 96 | /*CARD32*/char *OemProductRevPtr; /* Pointer to Product Revision String */
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| 97 | CARD8 Reserved[222]; /* Reserved for VBE implementation */
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| 98 | CARD8 OemData[256]; /* Data Area for OEM Strings */
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| 99 | } __attribute__((packed));
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| 100 |
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| 101 | /* Return Super VGA Information */
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| 102 | VbeInfoBlock *VBEGetVBEInfo(vbeInfoPtr pVbe);
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| 103 | void VBEFreeVBEInfo(VbeInfoBlock *block);
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| 104 |
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| 105 | /*
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| 106 | * INT 1
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| 107 | */
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| 108 |
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| 109 | struct _VbeModeInfoBlock {
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| 110 | CARD16 ModeAttributes; /* mode attributes */
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| 111 | CARD8 WinAAttributes; /* window A attributes */
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| 112 | CARD8 WinBAttributes; /* window B attributes */
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| 113 | CARD16 WinGranularity; /* window granularity */
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| 114 | CARD16 WinSize; /* window size */
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| 115 | CARD16 WinASegment; /* window A start segment */
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| 116 | CARD16 WinBSegment; /* window B start segment */
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| 117 | CARD32 WinFuncPtr; /* real mode pointer to window function */
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| 118 | CARD16 BytesPerScanline; /* bytes per scanline */
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| 119 |
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| 120 | /* Mandatory information for VBE 1.2 and above */
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| 121 | CARD16 XResolution; /* horizontal resolution in pixels or characters */
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| 122 | CARD16 YResolution; /* vertical resolution in pixels or characters */
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| 123 | CARD8 XCharSize; /* character cell width in pixels */
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| 124 | CARD8 YCharSize; /* character cell height in pixels */
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| 125 | CARD8 NumberOfPlanes; /* number of memory planes */
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| 126 | CARD8 BitsPerPixel; /* bits per pixel */
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| 127 | CARD8 NumberOfBanks; /* number of banks */
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| 128 | CARD8 MemoryModel; /* memory model type */
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| 129 | CARD8 BankSize; /* bank size in KB */
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| 130 | CARD8 NumberOfImages; /* number of images */
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| 131 | CARD8 Reserved; /* 1 */ /* reserved for page function */
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| 132 |
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| 133 | /* Direct color fields (required for direct/6 and YUV/7 memory models) */
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| 134 | CARD8 RedMaskSize; /* size of direct color red mask in bits */
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| 135 | CARD8 RedFieldPosition; /* bit position of lsb of red mask */
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| 136 | CARD8 GreenMaskSize; /* size of direct color green mask in bits */
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| 137 | CARD8 GreenFieldPosition; /* bit position of lsb of green mask */
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| 138 | CARD8 BlueMaskSize; /* size of direct color blue mask in bits */
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| 139 | CARD8 BlueFieldPosition; /* bit position of lsb of blue mask */
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| 140 | CARD8 RsvdMaskSize; /* size of direct color reserved mask in bits */
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| 141 | CARD8 RsvdFieldPosition; /* bit position of lsb of reserved mask */
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| 142 | CARD8 DirectColorModeInfo; /* direct color mode attributes */
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| 143 |
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| 144 | /* Mandatory information for VBE 2.0 and above */
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| 145 | CARD32 PhysBasePtr; /* physical address for flat memory frame buffer */
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| 146 | CARD32 Reserved32; /* 0 */ /* Reserved - always set to 0 */
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| 147 | CARD16 Reserved16; /* 0 */ /* Reserved - always set to 0 */
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| 148 |
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| 149 | /* Mandatory information for VBE 3.0 and above */
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| 150 | CARD16 LinBytesPerScanLine; /* bytes per scan line for linear modes */
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| 151 | CARD8 BnkNumberOfImagePages; /* number of images for banked modes */
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| 152 | CARD8 LinNumberOfImagePages; /* number of images for linear modes */
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| 153 | CARD8 LinRedMaskSize; /* size of direct color red mask (linear modes) */
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| 154 | CARD8 LinRedFieldPosition; /* bit position of lsb of red mask (linear modes) */
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| 155 | CARD8 LinGreenMaskSize; /* size of direct color green mask (linear modes) */
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| 156 | CARD8 LinGreenFieldPosition; /* bit position of lsb of green mask (linear modes) */
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| 157 | CARD8 LinBlueMaskSize; /* size of direct color blue mask (linear modes) */
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| 158 | CARD8 LinBlueFieldPosition; /* bit position of lsb of blue mask (linear modes) */
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| 159 | CARD8 LinRsvdMaskSize; /* size of direct color reserved mask (linear modes) */
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| 160 | CARD8 LinRsvdFieldPosition; /* bit position of lsb of reserved mask (linear modes) */
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| 161 | CARD32 MaxPixelClock; /* maximum pixel clock (in Hz) for graphics mode */
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| 162 | CARD8 Reserved2[189]; /* remainder of VbeModeInfoBlock */
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| 163 | } __attribute__((packed));
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| 164 |
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| 165 | /* Return VBE Mode Information */
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| 166 | VbeModeInfoBlock *VBEGetModeInfo(vbeInfoPtr pVbe, int mode);
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| 167 | void VBEFreeModeInfo(VbeModeInfoBlock *block);
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| 168 |
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| 169 | /*
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| 170 | * INT2
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| 171 | */
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| 172 |
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| 173 | #define CRTC_DBLSCAN (1<<0)
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| 174 | #define CRTC_INTERLACE (1<<1)
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| 175 | #define CRTC_NHSYNC (1<<2)
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| 176 | #define CRTC_NVSYNC (1<<3)
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| 177 |
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| 178 | struct _VbeCRTCInfoBlock {
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| 179 | CARD16 HorizontalTotal; /* Horizontal total in pixels */
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| 180 | CARD16 HorizontalSyncStart; /* Horizontal sync start in pixels */
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| 181 | CARD16 HorizontalSyncEnd; /* Horizontal sync end in pixels */
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| 182 | CARD16 VerticalTotal; /* Vertical total in lines */
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| 183 | CARD16 VerticalSyncStart; /* Vertical sync start in lines */
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| 184 | CARD16 VerticalSyncEnd; /* Vertical sync end in lines */
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| 185 | CARD8 Flags; /* Flags (Interlaced, Double Scan etc) */
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| 186 | CARD32 PixelClock; /* Pixel clock in units of Hz */
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| 187 | CARD16 RefreshRate; /* Refresh rate in units of 0.01 Hz */
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| 188 | CARD8 Reserved[40]; /* remainder of ModeInfoBlock */
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| 189 | } __attribute__((packed));
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| 190 | /* VbeCRTCInfoBlock is in the VESA 3.0 specs */
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| 191 |
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| 192 | Bool VBESetVBEMode(vbeInfoPtr pVbe, int mode, VbeCRTCInfoBlock *crtc);
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| 193 |
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| 194 | /*
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| 195 | * INT 3
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| 196 | */
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| 197 |
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| 198 | Bool VBEGetVBEMode(vbeInfoPtr pVbe, int *mode);
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| 199 |
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| 200 | /*
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| 201 | * INT 4
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| 202 | */
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| 203 |
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| 204 | /* Save/Restore Super VGA video state */
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| 205 | /* function values are (values stored in VESAPtr):
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| 206 | * 0 := query & allocate amount of memory to save state
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| 207 | * 1 := save state
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| 208 | * 2 := restore state
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| 209 | *
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| 210 | * function 0 called automatically if function 1 called without
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| 211 | * a previous call to function 0.
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| 212 | */
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| 213 |
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| 214 | typedef enum {
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| 215 | MODE_QUERY,
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| 216 | MODE_SAVE,
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| 217 | MODE_RESTORE
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| 218 | } vbeSaveRestoreFunction;
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| 219 |
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| 220 | Bool
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| 221 | VBESaveRestore(vbeInfoPtr pVbe, vbeSaveRestoreFunction fuction,
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| 222 | pointer *memory, int *size, int *real_mode_pages);
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| 223 |
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| 224 | /*
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| 225 | * INT 5
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| 226 | */
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| 227 |
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| 228 | Bool
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| 229 | VBEBankSwitch(vbeInfoPtr pVbe, unsigned int iBank, int window);
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| 230 |
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| 231 | /*
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| 232 | * INT 6
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| 233 | */
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| 234 |
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| 235 | typedef enum {
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| 236 | SCANWID_SET,
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| 237 | SCANWID_GET,
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| 238 | SCANWID_SET_BYTES,
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| 239 | SCANWID_GET_MAX
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| 240 | } vbeScanwidthCommand;
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| 241 |
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| 242 | #define VBESetLogicalScanline(pVbe, width) \
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| 243 | VBESetGetLogicalScanlineLength(pVbe, SCANWID_SET, width, \
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| 244 | NULL, NULL, NULL)
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| 245 | #define VBESetLogicalScanlineBytes(pVbe, width) \
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| 246 | VBESetGetLogicalScanlineLength(pVbe, SCANWID_SET_BYTES, width, \
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| 247 | NULL, NULL, NULL)
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| 248 | #define VBEGetLogicalScanline(pVbe, pixels, bytes, max) \
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| 249 | VBESetGetLogicalScanlineLength(pVbe, SCANWID_GET, 0, \
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| 250 | pixels, bytes, max)
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| 251 | #define VBEGetMaxLogicalScanline(pVbe, pixels, bytes, max) \
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| 252 | VBESetGetLogicalScanlineLength(pVbe, SCANWID_GET_MAX, 0, \
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| 253 | pixels, bytes, max)
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| 254 | Bool VBESetGetLogicalScanlineLength(vbeInfoPtr pVbe,
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| 255 | vbeScanwidthCommand command, int width,
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| 256 | int *pixels, int *bytes, int *max);
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| 257 |
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| 258 | /*
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| 259 | * INT 7
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| 260 | */
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| 261 |
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| 262 | /* 16 bit code */
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| 263 | Bool VBESetDisplayStart(vbeInfoPtr pVbe, int x, int y, Bool wait_retrace);
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| 264 | Bool VBEGetDisplayStart(vbeInfoPtr pVbe, int *x, int *y);
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| 265 |
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| 266 | /*
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| 267 | * INT 8
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| 268 | */
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| 269 |
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| 270 | /* if bits is 0, then it is a GET */
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| 271 | int VBESetGetDACPaletteFormat(vbeInfoPtr pVbe, int bits);
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| 272 |
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| 273 | /*
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| 274 | * INT 9
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| 275 | */
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| 276 |
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| 277 | /*
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| 278 | * If getting a palette, the data argument is not used. It will return
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| 279 | * the data.
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| 280 | * If setting a palette, it will return the pointer received on success,
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| 281 | * NULL on failure.
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| 282 | */
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| 283 | CARD32 *VBESetGetPaletteData(vbeInfoPtr pVbe, Bool set, int first, int num,
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| 284 | CARD32 *data, Bool secondary, Bool wait_retrace);
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| 285 | #define VBEFreePaletteData(data) xfree(data)
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| 286 |
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| 287 | /*
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| 288 | * INT A
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| 289 | */
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| 290 |
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| 291 | typedef struct _VBEpmi {
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| 292 | int seg_tbl;
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| 293 | int tbl_off;
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| 294 | int tbl_len;
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| 295 | } VBEpmi;
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| 296 |
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| 297 | VBEpmi *VBEGetVBEpmi(vbeInfoPtr pVbe);
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| 298 | #define VESAFreeVBEpmi(pmi) xfree(pmi)
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| 299 |
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| 300 | /* high level helper functions */
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| 301 |
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| 302 | typedef struct _vbeModeInfoRec {
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| 303 | int width;
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| 304 | int height;
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| 305 | int bpp;
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| 306 | int n;
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| 307 | struct _vbeModeInfoRec *next;
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| 308 | } vbeModeInfoRec, *vbeModeInfoPtr;
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| 309 |
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| 310 | vbeModeInfoPtr VBEBuildVbeModeList(vbeInfoPtr pVbe,
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| 311 | VbeInfoBlock *vbe);
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| 312 |
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| 313 | unsigned short VBECalcVbeModeIndex(vbeModeInfoPtr m,
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| 314 | DisplayModePtr mode, int bpp);
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| 315 |
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| 316 | typedef struct {
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| 317 | CARD8 *state;
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| 318 | CARD8 *pstate;
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| 319 | int statePage;
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| 320 | int stateSize;
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| 321 | int stateMode;
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| 322 | } vbeSaveRestoreRec, *vbeSaveRestorePtr;
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| 323 |
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| 324 | void
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| 325 | VBEVesaSaveRestore(vbeInfoPtr pVbe, vbeSaveRestorePtr vbe_sr,
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| 326 | vbeSaveRestoreFunction function);
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| 327 |
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| 328 | int VBEGetPixelClock(vbeInfoPtr pVbe, int mode, int Clock);
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| 329 | Bool VBEDPMSSet(vbeInfoPtr pVbe, int mode);
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| 330 |
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| 331 | #endif
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