aboutsummaryrefslogtreecommitdiff
path: root/xorg-server/hw/xfree86/vbe/vbe.h
diff options
context:
space:
mode:
Diffstat (limited to 'xorg-server/hw/xfree86/vbe/vbe.h')
-rw-r--r--xorg-server/hw/xfree86/vbe/vbe.h682
1 files changed, 341 insertions, 341 deletions
diff --git a/xorg-server/hw/xfree86/vbe/vbe.h b/xorg-server/hw/xfree86/vbe/vbe.h
index b1ec5a9fb..4786709ea 100644
--- a/xorg-server/hw/xfree86/vbe/vbe.h
+++ b/xorg-server/hw/xfree86/vbe/vbe.h
@@ -1,341 +1,341 @@
-
-/*
- * XFree86 vbe module
- * Copyright 2000 Egbert Eich
- *
- * The mode query/save/set/restore functions from the vesa driver
- * have been moved here.
- * Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com)
- * Authors: Paulo César Pereira de Andrade <pcpa@conectiva.com.br>
- */
-
-#ifndef _VBE_H
-#define _VBE_H
-#include "xf86int10.h"
-#include "xf86DDC.h"
-
-typedef enum {
- DDC_UNCHECKED,
- DDC_NONE,
- DDC_1,
- DDC_2,
- DDC_1_2
-}
-ddc_lvl;
-
-typedef struct {
- xf86Int10InfoPtr pInt10;
- int version;
- pointer memory;
- int real_mode_base;
- int num_pages;
- Bool init_int10;
- ddc_lvl ddc;
- Bool ddc_blank;
-} vbeInfoRec, *vbeInfoPtr;
-
-#define VBE_VERSION_MAJOR(x) *((CARD8*)(&x) + 1)
-#define VBE_VERSION_MINOR(x) (CARD8)(x)
-
-extern _X_EXPORT vbeInfoPtr VBEInit(xf86Int10InfoPtr pInt, int entityIndex);
-extern _X_EXPORT vbeInfoPtr VBEExtendedInit(xf86Int10InfoPtr pInt, int entityIndex, int Flags);
-extern _X_EXPORT void vbeFree(vbeInfoPtr pVbe);
-extern _X_EXPORT xf86MonPtr vbeDoEDID(vbeInfoPtr pVbe, pointer pDDCModule);
-
-#pragma pack(1)
-
-typedef struct vbeControllerInfoBlock {
- CARD8 VbeSignature[4];
- CARD16 VbeVersion;
- CARD32 OemStringPtr;
- CARD8 Capabilities[4];
- CARD32 VideoModePtr;
- CARD16 TotalMem;
- CARD16 OemSoftwareRev;
- CARD32 OemVendorNamePtr;
- CARD32 OemProductNamePtr;
- CARD32 OemProductRevPtr;
- CARD8 Scratch[222];
- CARD8 OemData[256];
-} vbeControllerInfoRec, *vbeControllerInfoPtr;
-
-#if defined(__GNUC__) || defined(__USLC__) || defined(__SUNPRO_C)
-#pragma pack() /* All GCC versions recognise this syntax */
-#else
-#pragma pack(0)
-#endif
-
-#ifndef __GNUC__
-#define __attribute__(a)
-#endif
-
-typedef struct _VbeInfoBlock VbeInfoBlock;
-typedef struct _VbeModeInfoBlock VbeModeInfoBlock;
-typedef struct _VbeCRTCInfoBlock VbeCRTCInfoBlock;
-
-/*
- * INT 0
- */
-
-struct _VbeInfoBlock {
- /* VESA 1.2 fields */
- CARD8 VESASignature[4]; /* VESA */
- CARD16 VESAVersion; /* Higher byte major, lower byte minor */
- /*CARD32*/char *OEMStringPtr; /* Pointer to OEM string */
- CARD8 Capabilities[4]; /* Capabilities of the video environment */
-
- /*CARD32*/CARD16 *VideoModePtr; /* pointer to supported Super VGA modes */
-
- CARD16 TotalMemory; /* Number of 64kb memory blocks on board */
- /* if not VESA 2, 236 scratch bytes follow (256 bytes total size) */
-
- /* VESA 2 fields */
- CARD16 OemSoftwareRev; /* VBE implementation Software revision */
- /*CARD32*/char *OemVendorNamePtr; /* Pointer to Vendor Name String */
- /*CARD32*/char *OemProductNamePtr; /* Pointer to Product Name String */
- /*CARD32*/char *OemProductRevPtr; /* Pointer to Product Revision String */
- CARD8 Reserved[222]; /* Reserved for VBE implementation */
- CARD8 OemData[256]; /* Data Area for OEM Strings */
-} __attribute__((packed));
-
-/* Return Super VGA Information */
-extern _X_EXPORT VbeInfoBlock *VBEGetVBEInfo(vbeInfoPtr pVbe);
-extern _X_EXPORT void VBEFreeVBEInfo(VbeInfoBlock *block);
-
-/*
- * INT 1
- */
-
-struct _VbeModeInfoBlock {
- CARD16 ModeAttributes; /* mode attributes */
- CARD8 WinAAttributes; /* window A attributes */
- CARD8 WinBAttributes; /* window B attributes */
- CARD16 WinGranularity; /* window granularity */
- CARD16 WinSize; /* window size */
- CARD16 WinASegment; /* window A start segment */
- CARD16 WinBSegment; /* window B start segment */
- CARD32 WinFuncPtr; /* real mode pointer to window function */
- CARD16 BytesPerScanline; /* bytes per scanline */
-
- /* Mandatory information for VBE 1.2 and above */
- CARD16 XResolution; /* horizontal resolution in pixels or characters */
- CARD16 YResolution; /* vertical resolution in pixels or characters */
- CARD8 XCharSize; /* character cell width in pixels */
- CARD8 YCharSize; /* character cell height in pixels */
- CARD8 NumberOfPlanes; /* number of memory planes */
- CARD8 BitsPerPixel; /* bits per pixel */
- CARD8 NumberOfBanks; /* number of banks */
- CARD8 MemoryModel; /* memory model type */
- CARD8 BankSize; /* bank size in KB */
- CARD8 NumberOfImages; /* number of images */
- CARD8 Reserved; /* 1 */ /* reserved for page function */
-
- /* Direct color fields (required for direct/6 and YUV/7 memory models) */
- CARD8 RedMaskSize; /* size of direct color red mask in bits */
- CARD8 RedFieldPosition; /* bit position of lsb of red mask */
- CARD8 GreenMaskSize; /* size of direct color green mask in bits */
- CARD8 GreenFieldPosition; /* bit position of lsb of green mask */
- CARD8 BlueMaskSize; /* size of direct color blue mask in bits */
- CARD8 BlueFieldPosition; /* bit position of lsb of blue mask */
- CARD8 RsvdMaskSize; /* size of direct color reserved mask in bits */
- CARD8 RsvdFieldPosition; /* bit position of lsb of reserved mask */
- CARD8 DirectColorModeInfo; /* direct color mode attributes */
-
- /* Mandatory information for VBE 2.0 and above */
- CARD32 PhysBasePtr; /* physical address for flat memory frame buffer */
- CARD32 Reserved32; /* 0 */ /* Reserved - always set to 0 */
- CARD16 Reserved16; /* 0 */ /* Reserved - always set to 0 */
-
- /* Mandatory information for VBE 3.0 and above */
- CARD16 LinBytesPerScanLine; /* bytes per scan line for linear modes */
- CARD8 BnkNumberOfImagePages; /* number of images for banked modes */
- CARD8 LinNumberOfImagePages; /* number of images for linear modes */
- CARD8 LinRedMaskSize; /* size of direct color red mask (linear modes) */
- CARD8 LinRedFieldPosition; /* bit position of lsb of red mask (linear modes) */
- CARD8 LinGreenMaskSize; /* size of direct color green mask (linear modes) */
- CARD8 LinGreenFieldPosition; /* bit position of lsb of green mask (linear modes) */
- CARD8 LinBlueMaskSize; /* size of direct color blue mask (linear modes) */
- CARD8 LinBlueFieldPosition; /* bit position of lsb of blue mask (linear modes) */
- CARD8 LinRsvdMaskSize; /* size of direct color reserved mask (linear modes) */
- CARD8 LinRsvdFieldPosition; /* bit position of lsb of reserved mask (linear modes) */
- CARD32 MaxPixelClock; /* maximum pixel clock (in Hz) for graphics mode */
- CARD8 Reserved2[189]; /* remainder of VbeModeInfoBlock */
-} __attribute__((packed));
-
-/* Return VBE Mode Information */
-extern _X_EXPORT VbeModeInfoBlock *VBEGetModeInfo(vbeInfoPtr pVbe, int mode);
-extern _X_EXPORT void VBEFreeModeInfo(VbeModeInfoBlock *block);
-
-/*
- * INT2
- */
-
-#define CRTC_DBLSCAN (1<<0)
-#define CRTC_INTERLACE (1<<1)
-#define CRTC_NHSYNC (1<<2)
-#define CRTC_NVSYNC (1<<3)
-
-struct _VbeCRTCInfoBlock {
- CARD16 HorizontalTotal; /* Horizontal total in pixels */
- CARD16 HorizontalSyncStart; /* Horizontal sync start in pixels */
- CARD16 HorizontalSyncEnd; /* Horizontal sync end in pixels */
- CARD16 VerticalTotal; /* Vertical total in lines */
- CARD16 VerticalSyncStart; /* Vertical sync start in lines */
- CARD16 VerticalSyncEnd; /* Vertical sync end in lines */
- CARD8 Flags; /* Flags (Interlaced, Double Scan etc) */
- CARD32 PixelClock; /* Pixel clock in units of Hz */
- CARD16 RefreshRate; /* Refresh rate in units of 0.01 Hz */
- CARD8 Reserved[40]; /* remainder of ModeInfoBlock */
-} __attribute__((packed));
-/* VbeCRTCInfoBlock is in the VESA 3.0 specs */
-
-extern _X_EXPORT Bool VBESetVBEMode(vbeInfoPtr pVbe, int mode, VbeCRTCInfoBlock *crtc);
-
-/*
- * INT 3
- */
-
-extern _X_EXPORT Bool VBEGetVBEMode(vbeInfoPtr pVbe, int *mode);
-
-/*
- * INT 4
- */
-
-/* Save/Restore Super VGA video state */
-/* function values are (values stored in VESAPtr):
- * 0 := query & allocate amount of memory to save state
- * 1 := save state
- * 2 := restore state
- *
- * function 0 called automatically if function 1 called without
- * a previous call to function 0.
- */
-
-typedef enum {
- MODE_QUERY,
- MODE_SAVE,
- MODE_RESTORE
-} vbeSaveRestoreFunction;
-
-extern _X_EXPORT Bool
-VBESaveRestore(vbeInfoPtr pVbe, vbeSaveRestoreFunction fuction,
- pointer *memory, int *size, int *real_mode_pages);
-
-/*
- * INT 5
- */
-
-extern _X_EXPORT Bool
-VBEBankSwitch(vbeInfoPtr pVbe, unsigned int iBank, int window);
-
-/*
- * INT 6
- */
-
-typedef enum {
- SCANWID_SET,
- SCANWID_GET,
- SCANWID_SET_BYTES,
- SCANWID_GET_MAX
-} vbeScanwidthCommand;
-
-#define VBESetLogicalScanline(pVbe, width) \
- VBESetGetLogicalScanlineLength(pVbe, SCANWID_SET, width, \
- NULL, NULL, NULL)
-#define VBESetLogicalScanlineBytes(pVbe, width) \
- VBESetGetLogicalScanlineLength(pVbe, SCANWID_SET_BYTES, width, \
- NULL, NULL, NULL)
-#define VBEGetLogicalScanline(pVbe, pixels, bytes, max) \
- VBESetGetLogicalScanlineLength(pVbe, SCANWID_GET, 0, \
- pixels, bytes, max)
-#define VBEGetMaxLogicalScanline(pVbe, pixels, bytes, max) \
- VBESetGetLogicalScanlineLength(pVbe, SCANWID_GET_MAX, 0, \
- pixels, bytes, max)
-extern _X_EXPORT Bool VBESetGetLogicalScanlineLength(vbeInfoPtr pVbe,
- vbeScanwidthCommand command, int width,
- int *pixels, int *bytes, int *max);
-
-/*
- * INT 7
- */
-
-/* 16 bit code */
-extern _X_EXPORT Bool VBESetDisplayStart(vbeInfoPtr pVbe, int x, int y, Bool wait_retrace);
-extern _X_EXPORT Bool VBEGetDisplayStart(vbeInfoPtr pVbe, int *x, int *y);
-
-/*
- * INT 8
- */
-
-/* if bits is 0, then it is a GET */
-extern _X_EXPORT int VBESetGetDACPaletteFormat(vbeInfoPtr pVbe, int bits);
-
-/*
- * INT 9
- */
-
-/*
- * If getting a palette, the data argument is not used. It will return
- * the data.
- * If setting a palette, it will return the pointer received on success,
- * NULL on failure.
- */
-extern _X_EXPORT CARD32 *VBESetGetPaletteData(vbeInfoPtr pVbe, Bool set, int first, int num,
- CARD32 *data, Bool secondary, Bool wait_retrace);
-#define VBEFreePaletteData(data) xfree(data)
-
-/*
- * INT A
- */
-
-typedef struct _VBEpmi {
- int seg_tbl;
- int tbl_off;
- int tbl_len;
-} VBEpmi;
-
-extern _X_EXPORT VBEpmi *VBEGetVBEpmi(vbeInfoPtr pVbe);
-#define VESAFreeVBEpmi(pmi) xfree(pmi)
-
-/* high level helper functions */
-
-typedef struct _vbeModeInfoRec {
- int width;
- int height;
- int bpp;
- int n;
- struct _vbeModeInfoRec *next;
-} vbeModeInfoRec, *vbeModeInfoPtr;
-
-typedef struct {
- CARD8 *state;
- CARD8 *pstate;
- int statePage;
- int stateSize;
- int stateMode;
-} vbeSaveRestoreRec, *vbeSaveRestorePtr;
-
-extern _X_EXPORT void
-VBEVesaSaveRestore(vbeInfoPtr pVbe, vbeSaveRestorePtr vbe_sr,
- vbeSaveRestoreFunction function);
-
-extern _X_EXPORT int VBEGetPixelClock(vbeInfoPtr pVbe, int mode, int Clock);
-extern _X_EXPORT Bool VBEDPMSSet(vbeInfoPtr pVbe, int mode);
-
-struct vbePanelID {
- short hsize;
- short vsize;
- short fptype;
- char redbpp;
- char greenbpp;
- char bluebpp;
- char reservedbpp;
- int reserved_offscreen_mem_size;
- int reserved_offscreen_mem_pointer;
- char reserved[14];
-};
-
-extern _X_EXPORT void VBEInterpretPanelID(int scrnIndex, struct vbePanelID *data);
-extern _X_EXPORT struct vbePanelID *VBEReadPanelID(vbeInfoPtr pVbe);
-
-#endif
+
+/*
+ * XFree86 vbe module
+ * Copyright 2000 Egbert Eich
+ *
+ * The mode query/save/set/restore functions from the vesa driver
+ * have been moved here.
+ * Copyright (c) 2000 by Conectiva S.A. (http://www.conectiva.com)
+ * Authors: Paulo César Pereira de Andrade <pcpa@conectiva.com.br>
+ */
+
+#ifndef _VBE_H
+#define _VBE_H
+#include "xf86int10.h"
+#include "xf86DDC.h"
+
+typedef enum {
+ DDC_UNCHECKED,
+ DDC_NONE,
+ DDC_1,
+ DDC_2,
+ DDC_1_2
+}
+ddc_lvl;
+
+typedef struct {
+ xf86Int10InfoPtr pInt10;
+ int version;
+ pointer memory;
+ int real_mode_base;
+ int num_pages;
+ Bool init_int10;
+ ddc_lvl ddc;
+ Bool ddc_blank;
+} vbeInfoRec, *vbeInfoPtr;
+
+#define VBE_VERSION_MAJOR(x) *((CARD8*)(&x) + 1)
+#define VBE_VERSION_MINOR(x) (CARD8)(x)
+
+extern _X_EXPORT vbeInfoPtr VBEInit(xf86Int10InfoPtr pInt, int entityIndex);
+extern _X_EXPORT vbeInfoPtr VBEExtendedInit(xf86Int10InfoPtr pInt, int entityIndex, int Flags);
+extern _X_EXPORT void vbeFree(vbeInfoPtr pVbe);
+extern _X_EXPORT xf86MonPtr vbeDoEDID(vbeInfoPtr pVbe, pointer pDDCModule);
+
+#pragma pack(1)
+
+typedef struct vbeControllerInfoBlock {
+ CARD8 VbeSignature[4];
+ CARD16 VbeVersion;
+ CARD32 OemStringPtr;
+ CARD8 Capabilities[4];
+ CARD32 VideoModePtr;
+ CARD16 TotalMem;
+ CARD16 OemSoftwareRev;
+ CARD32 OemVendorNamePtr;
+ CARD32 OemProductNamePtr;
+ CARD32 OemProductRevPtr;
+ CARD8 Scratch[222];
+ CARD8 OemData[256];
+} vbeControllerInfoRec, *vbeControllerInfoPtr;
+
+#if defined(__GNUC__) || defined(__USLC__) || defined(__SUNPRO_C)
+#pragma pack() /* All GCC versions recognise this syntax */
+#else
+#pragma pack(0)
+#endif
+
+#ifndef __GNUC__
+#define __attribute__(a)
+#endif
+
+typedef struct _VbeInfoBlock VbeInfoBlock;
+typedef struct _VbeModeInfoBlock VbeModeInfoBlock;
+typedef struct _VbeCRTCInfoBlock VbeCRTCInfoBlock;
+
+/*
+ * INT 0
+ */
+
+struct _VbeInfoBlock {
+ /* VESA 1.2 fields */
+ CARD8 VESASignature[4]; /* VESA */
+ CARD16 VESAVersion; /* Higher byte major, lower byte minor */
+ /*CARD32*/char *OEMStringPtr; /* Pointer to OEM string */
+ CARD8 Capabilities[4]; /* Capabilities of the video environment */
+
+ /*CARD32*/CARD16 *VideoModePtr; /* pointer to supported Super VGA modes */
+
+ CARD16 TotalMemory; /* Number of 64kb memory blocks on board */
+ /* if not VESA 2, 236 scratch bytes follow (256 bytes total size) */
+
+ /* VESA 2 fields */
+ CARD16 OemSoftwareRev; /* VBE implementation Software revision */
+ /*CARD32*/char *OemVendorNamePtr; /* Pointer to Vendor Name String */
+ /*CARD32*/char *OemProductNamePtr; /* Pointer to Product Name String */
+ /*CARD32*/char *OemProductRevPtr; /* Pointer to Product Revision String */
+ CARD8 Reserved[222]; /* Reserved for VBE implementation */
+ CARD8 OemData[256]; /* Data Area for OEM Strings */
+} __attribute__((packed));
+
+/* Return Super VGA Information */
+extern _X_EXPORT VbeInfoBlock *VBEGetVBEInfo(vbeInfoPtr pVbe);
+extern _X_EXPORT void VBEFreeVBEInfo(VbeInfoBlock *block);
+
+/*
+ * INT 1
+ */
+
+struct _VbeModeInfoBlock {
+ CARD16 ModeAttributes; /* mode attributes */
+ CARD8 WinAAttributes; /* window A attributes */
+ CARD8 WinBAttributes; /* window B attributes */
+ CARD16 WinGranularity; /* window granularity */
+ CARD16 WinSize; /* window size */
+ CARD16 WinASegment; /* window A start segment */
+ CARD16 WinBSegment; /* window B start segment */
+ CARD32 WinFuncPtr; /* real mode pointer to window function */
+ CARD16 BytesPerScanline; /* bytes per scanline */
+
+ /* Mandatory information for VBE 1.2 and above */
+ CARD16 XResolution; /* horizontal resolution in pixels or characters */
+ CARD16 YResolution; /* vertical resolution in pixels or characters */
+ CARD8 XCharSize; /* character cell width in pixels */
+ CARD8 YCharSize; /* character cell height in pixels */
+ CARD8 NumberOfPlanes; /* number of memory planes */
+ CARD8 BitsPerPixel; /* bits per pixel */
+ CARD8 NumberOfBanks; /* number of banks */
+ CARD8 MemoryModel; /* memory model type */
+ CARD8 BankSize; /* bank size in KB */
+ CARD8 NumberOfImages; /* number of images */
+ CARD8 Reserved; /* 1 */ /* reserved for page function */
+
+ /* Direct color fields (required for direct/6 and YUV/7 memory models) */
+ CARD8 RedMaskSize; /* size of direct color red mask in bits */
+ CARD8 RedFieldPosition; /* bit position of lsb of red mask */
+ CARD8 GreenMaskSize; /* size of direct color green mask in bits */
+ CARD8 GreenFieldPosition; /* bit position of lsb of green mask */
+ CARD8 BlueMaskSize; /* size of direct color blue mask in bits */
+ CARD8 BlueFieldPosition; /* bit position of lsb of blue mask */
+ CARD8 RsvdMaskSize; /* size of direct color reserved mask in bits */
+ CARD8 RsvdFieldPosition; /* bit position of lsb of reserved mask */
+ CARD8 DirectColorModeInfo; /* direct color mode attributes */
+
+ /* Mandatory information for VBE 2.0 and above */
+ CARD32 PhysBasePtr; /* physical address for flat memory frame buffer */
+ CARD32 Reserved32; /* 0 */ /* Reserved - always set to 0 */
+ CARD16 Reserved16; /* 0 */ /* Reserved - always set to 0 */
+
+ /* Mandatory information for VBE 3.0 and above */
+ CARD16 LinBytesPerScanLine; /* bytes per scan line for linear modes */
+ CARD8 BnkNumberOfImagePages; /* number of images for banked modes */
+ CARD8 LinNumberOfImagePages; /* number of images for linear modes */
+ CARD8 LinRedMaskSize; /* size of direct color red mask (linear modes) */
+ CARD8 LinRedFieldPosition; /* bit position of lsb of red mask (linear modes) */
+ CARD8 LinGreenMaskSize; /* size of direct color green mask (linear modes) */
+ CARD8 LinGreenFieldPosition; /* bit position of lsb of green mask (linear modes) */
+ CARD8 LinBlueMaskSize; /* size of direct color blue mask (linear modes) */
+ CARD8 LinBlueFieldPosition; /* bit position of lsb of blue mask (linear modes) */
+ CARD8 LinRsvdMaskSize; /* size of direct color reserved mask (linear modes) */
+ CARD8 LinRsvdFieldPosition; /* bit position of lsb of reserved mask (linear modes) */
+ CARD32 MaxPixelClock; /* maximum pixel clock (in Hz) for graphics mode */
+ CARD8 Reserved2[189]; /* remainder of VbeModeInfoBlock */
+} __attribute__((packed));
+
+/* Return VBE Mode Information */
+extern _X_EXPORT VbeModeInfoBlock *VBEGetModeInfo(vbeInfoPtr pVbe, int mode);
+extern _X_EXPORT void VBEFreeModeInfo(VbeModeInfoBlock *block);
+
+/*
+ * INT2
+ */
+
+#define CRTC_DBLSCAN (1<<0)
+#define CRTC_INTERLACE (1<<1)
+#define CRTC_NHSYNC (1<<2)
+#define CRTC_NVSYNC (1<<3)
+
+struct _VbeCRTCInfoBlock {
+ CARD16 HorizontalTotal; /* Horizontal total in pixels */
+ CARD16 HorizontalSyncStart; /* Horizontal sync start in pixels */
+ CARD16 HorizontalSyncEnd; /* Horizontal sync end in pixels */
+ CARD16 VerticalTotal; /* Vertical total in lines */
+ CARD16 VerticalSyncStart; /* Vertical sync start in lines */
+ CARD16 VerticalSyncEnd; /* Vertical sync end in lines */
+ CARD8 Flags; /* Flags (Interlaced, Double Scan etc) */
+ CARD32 PixelClock; /* Pixel clock in units of Hz */
+ CARD16 RefreshRate; /* Refresh rate in units of 0.01 Hz */
+ CARD8 Reserved[40]; /* remainder of ModeInfoBlock */
+} __attribute__((packed));
+/* VbeCRTCInfoBlock is in the VESA 3.0 specs */
+
+extern _X_EXPORT Bool VBESetVBEMode(vbeInfoPtr pVbe, int mode, VbeCRTCInfoBlock *crtc);
+
+/*
+ * INT 3
+ */
+
+extern _X_EXPORT Bool VBEGetVBEMode(vbeInfoPtr pVbe, int *mode);
+
+/*
+ * INT 4
+ */
+
+/* Save/Restore Super VGA video state */
+/* function values are (values stored in VESAPtr):
+ * 0 := query & allocate amount of memory to save state
+ * 1 := save state
+ * 2 := restore state
+ *
+ * function 0 called automatically if function 1 called without
+ * a previous call to function 0.
+ */
+
+typedef enum {
+ MODE_QUERY,
+ MODE_SAVE,
+ MODE_RESTORE
+} vbeSaveRestoreFunction;
+
+extern _X_EXPORT Bool
+VBESaveRestore(vbeInfoPtr pVbe, vbeSaveRestoreFunction fuction,
+ pointer *memory, int *size, int *real_mode_pages);
+
+/*
+ * INT 5
+ */
+
+extern _X_EXPORT Bool
+VBEBankSwitch(vbeInfoPtr pVbe, unsigned int iBank, int window);
+
+/*
+ * INT 6
+ */
+
+typedef enum {
+ SCANWID_SET,
+ SCANWID_GET,
+ SCANWID_SET_BYTES,
+ SCANWID_GET_MAX
+} vbeScanwidthCommand;
+
+#define VBESetLogicalScanline(pVbe, width) \
+ VBESetGetLogicalScanlineLength(pVbe, SCANWID_SET, width, \
+ NULL, NULL, NULL)
+#define VBESetLogicalScanlineBytes(pVbe, width) \
+ VBESetGetLogicalScanlineLength(pVbe, SCANWID_SET_BYTES, width, \
+ NULL, NULL, NULL)
+#define VBEGetLogicalScanline(pVbe, pixels, bytes, max) \
+ VBESetGetLogicalScanlineLength(pVbe, SCANWID_GET, 0, \
+ pixels, bytes, max)
+#define VBEGetMaxLogicalScanline(pVbe, pixels, bytes, max) \
+ VBESetGetLogicalScanlineLength(pVbe, SCANWID_GET_MAX, 0, \
+ pixels, bytes, max)
+extern _X_EXPORT Bool VBESetGetLogicalScanlineLength(vbeInfoPtr pVbe,
+ vbeScanwidthCommand command, int width,
+ int *pixels, int *bytes, int *max);
+
+/*
+ * INT 7
+ */
+
+/* 16 bit code */
+extern _X_EXPORT Bool VBESetDisplayStart(vbeInfoPtr pVbe, int x, int y, Bool wait_retrace);
+extern _X_EXPORT Bool VBEGetDisplayStart(vbeInfoPtr pVbe, int *x, int *y);
+
+/*
+ * INT 8
+ */
+
+/* if bits is 0, then it is a GET */
+extern _X_EXPORT int VBESetGetDACPaletteFormat(vbeInfoPtr pVbe, int bits);
+
+/*
+ * INT 9
+ */
+
+/*
+ * If getting a palette, the data argument is not used. It will return
+ * the data.
+ * If setting a palette, it will return the pointer received on success,
+ * NULL on failure.
+ */
+extern _X_EXPORT CARD32 *VBESetGetPaletteData(vbeInfoPtr pVbe, Bool set, int first, int num,
+ CARD32 *data, Bool secondary, Bool wait_retrace);
+#define VBEFreePaletteData(data) free(data)
+
+/*
+ * INT A
+ */
+
+typedef struct _VBEpmi {
+ int seg_tbl;
+ int tbl_off;
+ int tbl_len;
+} VBEpmi;
+
+extern _X_EXPORT VBEpmi *VBEGetVBEpmi(vbeInfoPtr pVbe);
+#define VESAFreeVBEpmi(pmi) free(pmi)
+
+/* high level helper functions */
+
+typedef struct _vbeModeInfoRec {
+ int width;
+ int height;
+ int bpp;
+ int n;
+ struct _vbeModeInfoRec *next;
+} vbeModeInfoRec, *vbeModeInfoPtr;
+
+typedef struct {
+ CARD8 *state;
+ CARD8 *pstate;
+ int statePage;
+ int stateSize;
+ int stateMode;
+} vbeSaveRestoreRec, *vbeSaveRestorePtr;
+
+extern _X_EXPORT void
+VBEVesaSaveRestore(vbeInfoPtr pVbe, vbeSaveRestorePtr vbe_sr,
+ vbeSaveRestoreFunction function);
+
+extern _X_EXPORT int VBEGetPixelClock(vbeInfoPtr pVbe, int mode, int Clock);
+extern _X_EXPORT Bool VBEDPMSSet(vbeInfoPtr pVbe, int mode);
+
+struct vbePanelID {
+ short hsize;
+ short vsize;
+ short fptype;
+ char redbpp;
+ char greenbpp;
+ char bluebpp;
+ char reservedbpp;
+ int reserved_offscreen_mem_size;
+ int reserved_offscreen_mem_pointer;
+ char reserved[14];
+};
+
+extern _X_EXPORT void VBEInterpretPanelID(int scrnIndex, struct vbePanelID *data);
+extern _X_EXPORT struct vbePanelID *VBEReadPanelID(vbeInfoPtr pVbe);
+
+#endif