146 lines
5.5 KiB
C
146 lines
5.5 KiB
C
/*
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Copyright (c) 2000 by Juliusz Chroboczek
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#ifndef _VBE_H
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#define _VBE_H
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#define VBE_WINDOW_RELOCATE 1
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#define VBE_WINDOW_READ 2
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#define VBE_WINDOW_WRITE 4
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typedef struct _VbeInfoBlock {
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U8 VbeSignature[4]; /* VBE Signature */
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U16 VbeVersion; /* VBE Version */
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U32 OemStringPtr; /* Pointer to OEM String */
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U8 Capabilities[4]; /* Capabilities of graphics controller */
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U32 VideoModePtr; /* Pointer to VideoModeList */
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U16 TotalMemory; /* Number of 64kb memory blocks */
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/* Added for VBE 2.0 */
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U16 OemSoftwareRev; /* VBE implementation Software revision */
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U32 OemVendorNamePtr; /* Pointer to Vendor Name String */
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U32 OemProductNamePtr; /* Pointer to Product Name String */
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U32 OemProductRevPtr; /* Pointer to Product Revision String */
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U8 Reserved[222]; /* Reserved for VBE implementation */
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U8 OemData[256]; /* Data Area for OEM Strings */
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} __attribute__ ((packed)) VbeInfoBlock;
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typedef struct _VbeModeInfoBlock {
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/* Mandatory information for all VBE revisions */
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U16 ModeAttributes; /* mode attributes */
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U8 WinAAttributes; /* window A attributes */
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U8 WinBAttributes; /* window B attributes */
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U16 WinGranularity; /* window granularity */
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U16 WinSize; /* window size */
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U16 WinASegment; /* window A start segment */
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U16 WinBSegment; /* window B start segment */
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U32 WinFuncPtr; /* pointer to window function */
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U16 BytesPerScanLine; /* bytes per scan line */
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/* Mandatory information for VBE 1.2 and above */
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U16 XResolution; /* horizontal resolution */
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U16 YResolution; /* vertical resolution */
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U8 XCharSize; /* character cell width in pixels */
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U8 YCharSize; /* character cell height in pixels */
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U8 NumberOfPlanes; /* number of memory planes */
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U8 BitsPerPixel; /* bits per pixel */
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U8 NumberOfBanks; /* number of banks */
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U8 MemoryModel; /* memory model type */
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U8 BankSize; /* bank size in KB */
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U8 NumberOfImagePages; /* number of images */
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U8 Reserved; /* reserved for page function */
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/* Direct Color fields (required for direct/6 and YUV/7 memory models) */
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U8 RedMaskSize; /* size of direct color red mask in bits */
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U8 RedFieldPosition; /* bit position of lsb of red mask */
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U8 GreenMaskSize; /* size of direct color green mask in bits */
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U8 GreenFieldPosition; /* bit position of lsb of green mask */
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U8 BlueMaskSize; /* size of direct color blue mask in bits */
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U8 BlueFieldPosition; /* bit position of lsb of blue mask */
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U8 RsvdMaskSize; /* size of direct color reserved mask bits */
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U8 RsvdFieldPosition; /* bit position of lsb of reserved mask */
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U8 DirectColorModeInfo; /* direct color mode attributes */
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/* Mandatory information for VBE 2.0 and above */
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U32 PhysBasePtr; /* physical address for flat memory fb */
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U32 OffScreenMemOffset; /* pointer to start of off screen memory */
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U16 OffScreenMemSize; /* amount of off screen memory in 1k units */
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U8 Reserved2[206]; /* remainder of ModeInfoBlock */
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} __attribute__ ((packed)) VbeModeInfoBlock;
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typedef struct _VbeInfoRec {
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U8 palette_format;
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int palette_wait;
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int windowA_offset;
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int windowB_offset;
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int window_size;
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int last_window;
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VbeModeInfoBlock vmib;
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} VbeInfoRec, *VbeInfoPtr;
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typedef struct _SupVbeInfoBlock {
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U8 SupVbeSignature[7]; /* Supplemental VBE Signature */
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U16 SupVbeVersion; /* Supplemental VBE Version */
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U8 SupVbeSubFunc[8]; /* Bitfield of supported subfunctions */
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U16 OemSoftwareRev; /* OEM Software revision */
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U32 OemVendorNamePtr; /* Pointer to Vendor Name String */
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U32 OemProductNamePtr; /* Pointer to Product Name String */
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U32 OemProductRevPtr; /* Pointer to Product Revision String */
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U32 OemStringPtr; /* Pointer to OEM String */
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U8 Reserved[221]; /* Reserved */
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} __attribute__ ((packed)) SupVbeInfoBlock;
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void VbeReportInfo(Vm86InfoPtr vi);
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int VbeGetNmode(Vm86InfoPtr vi);
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int VbeGetModes(Vm86InfoPtr vi, VesaModePtr modes, int nmode);
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VbeInfoPtr VbeInit(Vm86InfoPtr vi);
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void VbeCleanup(Vm86InfoPtr vi, VbeInfoPtr vbe);
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int
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VbeSetMode(Vm86InfoPtr vi, VbeInfoPtr vbe, int mode, int linear, int direct);
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int VbeGetMode(Vm86InfoPtr vi, int *mode);
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void *VbeMapFramebuffer(Vm86InfoPtr vi, VbeInfoPtr vbe, int mode, int *ret_size,
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CARD32 * ret_phys);
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void VbeUnmapFramebuffer(Vm86InfoPtr vi, VbeInfoPtr vbe, int mode, void *fb);
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int
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VbeSetPalette(Vm86InfoPtr vi, VbeInfoPtr vbe, int first, int number,
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U8 * entries);
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int
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VbeGetPalette(Vm86InfoPtr vi, VbeInfoPtr vbe, int first, int number,
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U8 * entries);
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void *VbeSetWindow(Vm86InfoPtr vi, VbeInfoPtr vbe, int offset, int purpose,
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int *size_return);
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Bool VbeDPMS(Vm86InfoPtr vi, int mode);
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int VbeDoInterrupt10(Vm86InfoPtr vi);
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Bool VbeBoot(Vm86InfoPtr vi);
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#endif
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