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/* $XConsortium: mga_bios.h /main/2 1996/10/28 04:48:23 kaleb $ */
#ifndef MGA_BIOS_H
#define MGA_BIOS_H
/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/mga/mga_bios.h,v 1.3 1998/07/25 16:55:51 dawes Exp $ */
/*
* MGABiosInfo - This struct describes the video BIOS info block.
*
* DESCRIPTION
* Do not mess with this, unless you know what you are doing.
* The data lengths and types are critical.
*
* HISTORY
* October 7, 1996 - [aem] Andrew E. Mileski
* This struct was shamelessly stolen from the MGA DDK.
* It has been reformatted, and the data types changed.
*/
typedef struct {
/* Length of this structure in bytes */
__u16 StructLen;
/*
* Unique number identifying the product type
* 0 : MGA-S1P20 (2MB base with 175MHz Ramdac)
* 1 : MGA-S1P21 (2MB base with 220MHz Ramdac)
* 2 : Reserved
* 3 : Reserved
* 4 : MGA-S1P40 (4MB base with 175MHz Ramdac)
* 5 : MGA-S1P41 (4MB base with 220MHz Ramdac)
*/
__u16 ProductID;
/* Serial number of the board */
__u8 SerNo[ 10 ];
/*
* Manufacturing date of the board (at product test)
* Format: yyyy yyym mmmd dddd
*/
__u16 ManufDate;
/* Identification of manufacturing site */
__u16 ManufId;
/*
* Number and revision level of the PCB
* Format: nnnn nnnn nnnr rrrr
* n = PCB number ex:576 (from 0->2047)
* r = PCB revision (from 0->31)
*/
__u16 PCBInfo;
/* Identification of any PMBs */
__u16 PMBInfo;
/*
* Bit 0-7 : Ramdac speed (0=175MHz, 1=220MHz)
* Bit 8-15 : Ramdac type (0=TVP3026, 1=TVP3027)
*/
__u16 RamdacType;
/* Maximum PCLK of the ramdac */
__u16 PclkMax;
/* Maximum LDCLK supported by the WRAM memory */
__u16 LclkMax;
/* Maximum MCLK of base board */
__u16 ClkBase;
/* Maximum MCLK of 4Mb board */
__u16 Clk4MB;
/* Maximum MCLK of 8Mb board */
__u16 Clk8MB;
/* Maximum MCLK of board with multimedia module */
__u16 ClkMod;
/* Diagnostic test pass frequency */
__u16 TestClk;
/* Default VGA mode1 pixel frequency */
__u16 VGAFreq1;
/* Default VGA mode2 pixel frequency */
__u16 VGAFreq2;
/* Date of last BIOS programming/update */
__u16 ProgramDate;
/* Number of times BIOS has been programmed */
__u16 ProgramCnt;
/* Support for up to 32 hardware/software options */
__u32 Options;
/* Support for up to 32 hardware/software features */
__u32 FeatFlag;
/* Definition of VGA mode MCLK */
__u16 VGAClk;
/* Indicate the revision level of this header struct */
__u16 StructRev;
__u16 Reserved[ 3 ];
} MGABiosInfo;
/* from the PINS structure, refer pins info from MGA */
typedef struct tagParamMGA {
__u16 PinID; /* 0 */
__u8 StructLen; /* 2 */
__u8 Rsvd1; /* 3 */
__u16 StructRev; /* 4 */
__u16 ProgramDate; /* 6 */
__u16 ProgramCnt; /* 8 */
__u16 ProductID; /* 10 */
__u8 SerNo[16]; /* 12 */
__u8 PLInfo[6]; /* 28 */
__u16 PCBInfo; /* 34 */
__u32 FeatFlag; /* 36 */
__u8 RamdacType; /* 40 */
__u8 RamdacSpeed; /* 41 */
__u8 PclkMax; /* 42 */
__u8 ClkGE; /* 43 */
__u8 ClkMem; /* 44 */
__u8 Clk4MB; /* 45 */
__u8 Clk8MB; /* 46 */
__u8 ClkMod; /* 47 */
__u8 TestClk; /* 48 */
__u8 VGAFreq1; /* 49 */
__u8 VGAFreq2; /* 50 */
__u8 MCTLWTST; /* 51 */
__u8 VidCtrl; /* 52 */
__u8 Clk12MB; /* 53 */
__u8 Clk16MB; /* 54 */
__u8 Reserved[8]; /* 55-62 */
__u8 PinCheck; /* 63 */
} MGABios2Info;
#endif
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