/* $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